U.S. patent number 3,651,478 [Application Number 05/052,948] was granted by the patent office on 1972-03-21 for inventory control system.
Invention is credited to John J. Shandlay.
United States Patent |
3,651,478 |
Shandlay |
March 21, 1972 |
INVENTORY CONTROL SYSTEM
Abstract
An inventory control system for rapidly taking an inventory of
items in an array including an optical scanning system which
provides an image of variable size of each item in accordance with
the number of units of the item in the inventory, a larger image
denoting more units, a signal generator which converts the image to
a train of electrical signals, a storage device for storing the
signals for later use, retrieval apparatus for regenerating the
stored signals at a subsequent time, and a display system for
displaying and size quantizing the original image. The item
identified by its quantized image is checked against a data bank to
determine for that item how many units correspond to the particular
image size displayed. The checking may be automatic or manual, and
an automatic print-out may be provided if desired.
Inventors: |
Shandlay; John J.
(Philadelphia, PA) |
Family
ID: |
21980951 |
Appl.
No.: |
05/052,948 |
Filed: |
July 7, 1970 |
Current U.S.
Class: |
705/28 |
Current CPC
Class: |
G06K
7/10861 (20130101); G06Q 10/087 (20130101); G06K
7/086 (20130101); B65G 1/1371 (20130101) |
Current International
Class: |
G06K
7/08 (20060101); G06K 7/10 (20060101); B65G
1/137 (20060101); G06Q 10/00 (20060101); G01d
005/12 (); G01d 005/39 () |
Field of
Search: |
;340/172.5,147,153
;235/92,61.7R,61.6H,61.6J,61.6L,61.11E,61.11F,61.11G,61.6,61.7
;283/18 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Zache; Raulfe B.
Assistant Examiner: Chapuran; Ronald F.
Claims
What is claimed to be new and useful is:
1. A method of taking an inventory of items in an array, consisting
of the steps of,
a. establishing a viewing reference line with respect to the
array,
b. scanning the items to be inventoried and recording for each item
a first indicia which uniquely identifies such item and recording
one of a series of second indicia which precisely delineates the
apparent size of such item as viewed from the said viewing
reference line,
c. preparing an information data bank which contains the
identifying said first indicia for each item of inventory and
correlates for each such item of inventory the apparent sizes
corresponding to the said series of second indicia with the number
of units of the item in the inventory, and
d. comparing the said recorded first and second indicia of each
inventoried item for identity with the information in the data bank
to obtain the inventory count for each item.
2. A method of taking an inventory as described in claim 1 further
including the step of arranging the units of each item of inventory
one behind another and extending forward toward said viewing
reference line from a second reference line spaced a predetermined
distance from said viewing reference line.
3. A method of taking an inventory as described in claim 1 further
including the step of arranging the units of each item of inventory
one behind another and extending forward toward said viewing
reference line from a second reference line spaced a predetermined
distance from and parallel to said viewing reference line.
4. A method of taking an inventory as described in claim 1 wherein
the said step of scanning for recording said second indicia is
taken along a line substantially orthogonal to said viewing
reference line.
5. A method of taking an inventory as described in claim 1 wherein
said recording step consists of, the step of recording said first
and second indicia on a first medium in a first form different from
the form of information in said data bank, and a subsequent step of
translating said first and second indicia in said first form from
said first medium to a second medium in a second form which is the
same as the form of information in said data bank.
6. A method of taking an inventory as described in claim 5 further
including the step of arranging the units of each item of inventory
one behind another and extending forward toward said viewing
reference line from a second reference line spaced a predetermined
distance from and parallel to said viewing reference line.
7. A system for taking an inventory of items in an array with the
units of each item spaced closely behind one another, said system
being usable with an information data bank containing identifying
first indicia for each item of inventory, and correlation data for
each item of inventory which correlates a series of second indicia
with the number of units of the item in the inventory, and
comprising in combination,
a. scanning and generating means for scanning from a predetermined
reference line the items to be inventoried and generating a data
output including a first indicia which uniquely identifies each
item, and one of a series of second indicia which precisely
delineates the apparent size of such item as viewed from the said
reference line,
b. storage means coupled to and responsive to said scanning means
for storing said data output,
c. retrieval means operative to regenerate the said stored data
output,
d. display means couplable to said retrieval means effective
responsive to the regenerated data output from the latter to
display said first indicia and said one of said series of second
indicia for each item of inventory,
whereby, said first and second indicia displayed by said display
means may be compared with the information in the data bank to
thereby establish the number of units of each item in the
inventory.
8. A system as described in claim 7 wherein the scanning portion of
said scanning and generating means comprises at least one short
focal length optical lens which produces an optical image of the
item of inventory viewed which is larger or smaller dependent on
whether the item is closer or more remote from the lens.
9. A system as described in claim 7 wherein the scanning portion of
said scanning and generating means comprises,
a. at least one short focal length optical lens which produces an
optical image of the item of inventory viewed which is larger or
smaller dependent on whether the item is closer or more remote from
the lens,
b. an optical display screen upon which the image from said lens is
projected, and
c. an optical transmission device effective to transmit the optical
image from said lens to said display screen.
10. A system as described in claim 7 wherein the scanning portion
of said scanning and generating means comprises at least one short
focal length optical lens which produces an optical image of the
item of inventory viewed which is larger or smaller dependent on
whether the item is closer or more remote from the lens, and
wherein the generating portion of said scanning and generating
means comprises an electronic scanner which scans the optical image
produced by said lens and generates a train of electrical signals
corresponding to the picture information content of the optical
image.
11. A system as described in claim 7 wherein the scanning portion
of said scanning and generating means comprises,
a. at least one short focal length optical lens which produces an
optical image of the item of inventory viewed which is larger or
smaller dependent on whether the item is closer or more remote from
the lens,
b. an optical display screen upon which the image from said lens is
projected, and
c. an optical transmission device effective to transmit the optical
image from said lens to said display screen,
and wherein the generating portion of said scanning and generating
means comprises an electronic scanner which scans the optical image
produced by said lens on said display screen and generates a train
of electrical signals corresponding to the picture information
content of the optical image.
12. A system as described in claim 7 wherein said storage means
comprises a magnetic tape video recording device.
13. A system as described in claim 7 wherein said retrieval means
comprises a video magnetic tape playback device.
14. A system as described in claim 7 wherein said display means
comprises a closed circuit television receiver.
15. A system as described in claim 7 wherein said display means
comprises a closed circuit television receiver including a cathode
ray tube having a display face, and a transparent sizing grid
closely overlying said cathode ray tube face for superposition on
the displayed data to measure said second indicia.
16. A system as described in claim 9 wherein said optical
transmission device includes means permitting movement of said lens
with respect to said optical display screen without changing the
image projected on the latter.
17. A system as described in claim 9 wherein said optical
transmission device is a periscope system of variable length
permitting movement of said lens with respect to said optical
display screen without changing the image projected on the
latter.
18. A system as described in claim 9 wherein at least said scanning
and generating means is housed in a mobile apparatus adapted for
movement in front of the array of items to be inventoried along a
line parallel to said reference line.
19. A system as described in claim 15 wherein said sizing grid is
shiftable in directions parallel to the face of said cathode ray
tube to thereby permit positioning of said grid at any point over
the tube face.
20. A method for taking an inventory of items in an array with the
units of each item spaced closely behind one another, consisting of
the steps of,
a. scanning from a predetermined reference line the items to be
inventoried and generating a data output including a first indicia
which uniquely identifies each item and one of a series of second
indicia which precisely delineates the apparent size of such item
as viewed from the said reference line,
b. recording said data output on a data carrying medium,
c. preparing an information data bank containing the identifying
said first indicia for each item of inventory and correlation data
for each item of inventory which correlates the apparent sizes
corresponding to the said series of second indicia with the number
of units of the item in the inventory,
d. reading the data output recorded on the said data carrying
medium,
e. comparing the data output first and second indicia recorded on
said data carrying medium for each item of inventory for identity
with the first and second indicia in said data bank, and when a
match is obtained, operating terminal equipment for indicating the
count for each item for which such a match was obtained.
Description
This invention relates generally to inventory control systems and
more particularly relates to a system which automatically inspects
and records data corresponding to the quantity of particular items
which are stored at particular locations, and then makes the
recorded data available for tabulation and interpretation.
The system generally consists of an optical scanning system
arranged in a mobile apparatus which traverses and optically
examines the area within which is stored the items to be
inventoried. The scanning is done at a relatively high rate of
speed with the data of the scanned items being converted into
electronic signals which are read into a storage unit for later
examination. The high scanning speed of the system enables a
complete inventory to be taken in a very short time without
disrupting the normal sales operation of a store which is for
example being inventoried. The information read into the storage
unit, which may typically be a tape recording device, is
subsequently examined and processed to provide an itemized printing
inventory list for the particular establishment which has been
inventoried.
The system according to the invention has wide applicability and
will be illustrated hereinafter in connection with the taking of an
inventory of a store which sells paperback books. It is apparent
that paperback book stores carry a large number of titles, and the
present method of hand inventory is extremely time consuming and
consequently relatively expensive. A similar situation exists for
example in supermarket food stores. The system according to the
invention is utilizable for the taking of inventory in conjunction
with any items in which the number of items of a particular kind in
the inventory is determinable by a correlation of the size of the
viewed image of the item, as observed by the scanning apparatus,
with information stored in a data bank which relates the size of
the image to the quantity of the item.
Since the size of an image viewed through a lens is determined by
the distance between the lens and the object, the apparatus
according to the invention utilizes lens systems which are
established at a pre-determined reference distance from the
reference plane of the objects being inventoried, and this standard
reference distance is taken into account in the information stored
in the data bank. Accordingly, it is a primary object of the
invention to provide a novel inventory control system utilizing an
optical scanning device for examining items of inventory at a
pre-determined reference distance from the object, recording the
observed object on a record storage medium, comparing the size of
the examined object with information in a data storage device which
correlates the object size with the number of objects in inventory,
and providing a permanent record of the inventoried object.
Another object of the invention is to provide a novel inventory
control system as aforesaid utilizing mobile optical scanning
devices which move past the items to be inventoried and scan the
positional location thereof, the scanned images being relayed to a
viewing mechanism and recorded in a data storage system.
A further object of the invention as aforesaid is to provide novel
apparatus for reading out the stored inventory information and
translating the stored data into coded information which identifies
the inventory item and provides a measure of the quantity of the
item in the inventory.
The foregoing and other objects of the invention will become clear
from a reading of the following specification in conjunction with
an examination of the appended drawings wherein:
FIG. 1 is a front perspective from above of a portion of the mobile
apparatus which includes the scanning mechanisms and houses some of
the electronic recording devices;
FIG. 2 is a front elevation of the apparatus shown in FIG. 1 with
the lower portion vertically sectioned to disclose the mobile
crawler for moving the scanning apparatus;
FIG. 3 is a vertical sectional view as would be seen when viewed
along the line 3--3 of FIG. 2;
FIG. 4 is a horizontal jump section through the apparatus of FIG. 1
as would be seen when viewed along the line 4--4 of FIG. 2, and is
on an enlarged scale;
FIG. 5 is a vertical jump section through one of the scanning units
as would be seen when viewed along the line 5--5 of FIG. 4;
FIG. 6 is a side elevation of the same portion of the apparatus
shown in vertical section in FIG. 5 with the telescopic light tubes
in collapsed or compacted position;
FIG. 7 is a horizontal section through the telescopically engaged
light tubes as would be seen when viewed along the line 7--7 of
FIG. 6;
FIG. 8 is a schematic representation of the entire inventory
control system illustrating the recording, play back, encoding and
print-out phases of the system;
FIG. 9 is a front view of the apparatus associated with the CRT
display of FIG. 8 for determining the information to be encoded on
a record carrier;
FIG. 10 through 13 represent different views of data items
displayed on the CRT of FIG. 8 through the device of FIG. 9;
and
FIG. 11 is an enlarged fragment of the data shown within the circle
14 shown on FIG. 10.
In the several figures, like elements are denoted by like reference
characters.
Referring first to the schematic representation of the Inventory
Control System illustrated in FIG. 8 of the drawings, there is seen
a data recording unit designated generally as 20 which includes
equipment for examining and making a record of the inventory of
books in different pockets of a bookrack designated generally as 21
so that this recorded information may be subsequently displayed by
means of an optical display device 22 to thereby permit the
displayed information to be recorded on a record carrier 23 by
means of an encoding device 24. The record carrier 23 may then be
suitably processed through compatible electronic data processing
equipment 25 to produce a printed tabulated inventory report from
the print-out mechanism 26. The record carrier 23 may be of any
suitable form, such as punched cards or magnetic tape or punched
paper tape, and the encoding device 24 is of course a manually
operable suitable piece of equipment for encoding onto the record
carrier, as for example a suitable key punch machine or paper tape
puncher or keyboard operated magnetic encoder.
The information which is encoded onto the record carrier for
processing by the electronic data processing equipment 25 is
visually observed on the optical display device 22 by the operator
of the encoder 24 and the information is then encoded onto the
record carrier 23. The information which is observed by the encoder
operator consists of two items, the first item being the size of
the book image as observed through a calibrating grid to be
subsequently described in connection with the showings of FIGS. 9
through 13, and the second item of information being the book code
designation which appears in the upper left hand corner of all
paperback books, as is shown in the fragmentary view of FIG. 14
which illustratively designates the book shown in FIG. 10 as being
Bantam book Q5433.
With these two items of information encoded onto the record carrier
23, the electronic data processing equipment 25 can search its
memory for the data relating to Bantam book Q5433, and having
located such data can then compare the information on the record
carrier 23 relating to the book image size with size-related data
stored in the EDP memory and thereby determine the number of Q5433
books in the book rack pocket and cause this information to be
printed out as one item of inventory. The relationship between the
size of the book image as observed on the optical display device 22
and the number of books held in the particular pocket of the
bookrack 21 shown at the left side of FIG. 8.
For purposes of illustration, bookrack 21 is shown having four
book-holding pockets arranged vertically one beneath another and
holding differing amounts of books 27, 28, 29 and 30, with these
books being respectively viewed by lens systems 31, 32, 33 and 34
all having identical fields of view defined by the upper and lower
bounding lines associated with each lens and designated as 31f
through 34f. Since all of the lenses are of the same fixed focal
length and are all spaced away from the front edges of the
book-holding pockets by exactly the same distance, it is of course
clear that the size of the image seen by each lens would be exactly
the same if all of the pockets were full and the books were of the
same dimensions.
Assuming for the moment that all books are of the same size, it
will be understood then that the size of the book image seen by
each lens will depend upon the distance of the lens from the front
of the book, and that the more remote a book is from the lens, the
smaller the image of the book will appear. For example, the image
of book 27 which is observed by lens 31 fills substantially the
entire optical field of the lens as is shown by the fact that the
optical field limiting lines 31f are just tangent to the top and
bottom of the book 27. It is observed however that the books 28, 29
and 30 do not fill their respective pockets and are therefore
spaced backward from the pocket front edge by differing distances.
Accordingly, the book image seen by lens 32 is smaller than that
seen by lens 31 and smaller than that seen by lens 33 while being
larger than the image seen by lens 34. The image seen by lens 33
while smaller than that seen by lens 31 is larger than the images
seen by lenses 32 and 34. Finally, the image seen by lens 34 is the
smallest of all since the front face of the single book in the
pocket is more remote from lens 34 than the other books are from
their associated viewing lenses.
The images seen by each of the lens 31 through 34 are projected
onto a viewing screen 35 where they are scanned by a television
type electronic image scanner 36 which converts the optical images
into alternating current electrical signals. These electrical
signals are transmitted to a video recording and play-back
apparatus 37 where they are recorded on a suitable recording medium
such as magnetic tape for future play-back Suitable apparatus for
providing the functions of the image scanner 36 and video tape
apparatus 37 is the Javelin Radio Tape Recorder model VTR-1000SH
made by Javelin Electronics of Los Angeles, California. This unit
in addition to properly recording the data of interest, provides a
play-back feature of great importance in that the image of each
book is displayable on the cathode ray tube display device 22 as a
"still" picture for any desired length of time so that the operator
of the encoding device 24 may hold a picture on display for a
sufficient length of time to read off the necessary information.
The cathode ray tube display device 22 is fitted with the usual
controls for moving the visual display to a desired position on the
screen which in most cases will be substantially a central
location.
Used in conjunction with the optical display device 22 is a
shiftable grid device designated generally as 38. The grid
structure 38, as best seen in FIG. 9, consists of a pair of
horizontal tracks 39 fixed in position with respect to the cathode
ray tube face 40, and a grid frame 41 carrying a transparent grid
42, the grid frame 41 being shiftable horizontally by means of side
frames 43 slidably coupled to the horizontal tracks 39, and being
shiftable vertically by its slidable coupling to the side frame 41
permits the transparent grid 42 to be positioned as desired with
respect to the display face of the cathode ray tube 40.
The transparent grid 42 is provided with a set of concentric
rectangular size indicia designated as 42a through 42f with the
smallest central indicia designated as 42a and the largest outer
indicia designated as 42f. The use of the grid 42 is illustrated in
the showings of FIGS. 10 through 13 to which attention should now
be directed. The showing of FIG. 10 corresponds to a showing of the
image as seen by lens 31 through the grid 42 from which it is
observed that the largest grid indicia 42f coincides with the
outline of the books 27. The illustration of FIG. 11 corresponds to
the image size as seen by the lens 32, and it is observed that as
viewed through the grid 42 the size of the image corresponds to the
grid indicia 42c. Similarly, FIG. 12 shows the somewhat larger
image seen by lens 33 as noted by the indicia frame 42d, while FIG.
13 illustrates the smallest image of all for the book 30 as seen by
lens 34 and designated by the sizing indicia 42b.
The operator of the encoding device 24 when playing back the
recorded data, causes the image of each book to be displayed on the
cathode ray tube face 40, notes the image size by means of the
shiftable transparent grid 42 and encodes this information onto an
appropriate record carrier with the data which identifies the
particular book for which the data is being recorded, the
identifying data being that previously mentioned as appearing in
the upper left hand corner of the book and as shown in FIG. 14. An
image magnifier of any desired type may be used if desirable to
enlarge the size of the book identifying information in the upper
left hand corner. The magnification may be effected electronically
by control of the optical display device 22 in any of the well
known manners or could optionally be a simple optical magnifier
such as a magnifying lens positionable over the upper left-hand
corner region of the book image as displayed to enlarge the book
identifying indicator.
When the information has been encoded onto the record carrier 23,
the record carrier, and all of the similar carriers containing the
information for all of the books to be inventoried, may be
processed into the electronic data processing unit 25 for
comparison of the data on the record carriers with the data stored
in the processing unit in order to provide an inventory print out.
The book-identifying information in the upper left-hand corner of
the book, not only identifies the book by title, but also provides
other information which is necessary in order to insure a correct
inventory result. For example, it should be appreciated that two
different books in different pockets of a bookrack may produce
identically the same image size on the display unit but may
nevertheless represent different numbers of books in two different
pockets.
It must be recalled that the size of the image merely determines
how far from the lens the front face of the book being examined is
located. Reference to FIG. 8 shows that each of the books 28 is
substantially twice as thick as each of the books 27 so that the
front face of the two books 28 from the lens 32 is substantially
the same distance as the front face of the front one of the
rearmost four books 27 from the lens 31. Therefore, if there were
only four books 27 in the upper pocket, they would produce the same
sized image on the display tube as the two books 28 in the second
pocket. From this, it will be understood that the size of the image
alone is not sufficient to determine the number of books in the
pocket, but that the thickness of the book must also be known in
order to be correlated with a particular image size in order to
determine the number of books in the pocket. This correlation
information is of course known for each book and is part of the
information stored in the electronic data processing unit 25.
It will be appreciated that a certain length of time is required by
the person operating the encoder 24 to read the necessary
information from the display 22 and to encode it onto the record
carrier 23. The advantage of the present system is that the time
consumed in carrying out this process is not consumed at the store
where the inventory is being taken, but is on the contrary carried
out at a convenient processing location where the data taped by the
recording unit 37 may be examined at a convenient time without
disrupting the business operations of the store in which the
inventory was in fact taken.
The actual taking of the inventory proceeds very rapidly by
employing as the scanning and recording unit 20 a mobile apparatus
which is placed in front of a wall or array of bookracks and moved
rapidly parallel to the array from one end to the other with the
viewing lenses held at a fixed pre-determined distance from the
bookracks as the unit 20 moves past. The functioning speed of the
optical and electronic system of the data recording unit 20 is
obviously so fast compared to any possible speed of physical
movement of the data recording unit 20 that the only limitation in
the rate at which the contents of a store may be inventoried is
determined by how rapidly the data recording unit 20 can be moved
into the store, properly aligned and indexed with respect to the
articles to be inventoried, and then moved past those articles
while the data is recorded.
Immediately upon completion of the inventory scanning, the entire
data recording unit 20 may be removed from the store or warehouse
and transported to the nest location to be inventoried. The data
recorded in the tape units is of course removed therefrom and a new
tape recording medium supplied in preparation for taking the
subsequent inventory. The data tape may be then taken to the data
processing center where the aforedescribed display, encoding and
processing of the data may be carried out. One form of apparatus
suitable for carrying out the functions of the data recording unit
20 is illustrated in FIGS. 1 to 7 to which attention should be now
directed.
The data recording unit 20 has an upper housing 44 within which is
contained all of the optical scanning and electronic recording
apparatus, and a lower housing 45 within which is contained a
crawler device for moving the entire unit at a prescribed rate of
speed. As best seen in FIG. 2, the lower housing 45 contains a
plurality of drive and idler wheels 46 about which are trained a
caterpillar type belt tred 47 which engages and moves along the
underlying floor 48. The crawler system may either be self powered,
as for example by an electrically energized motor, or may be
unpowered and may be moved manually be merely pushing the housing
at a desired rate of speed.
As best seen from FIGS. 1, 2 and 3, the scanning and recording
apparatus contained within the upper housing 44 is illustrated as
consisting of three identical optical scanning assemblies each
including four scanning lenses, and the outputs of which are
commonly fed into the video tape apparatus 37. The upper left hand
assembly is observed to include the lenses 31 through 34, the
viewing screen system 35 and the electronic image scanner 36 all as
previously described in the representational showing of FIG. 8. The
other two systems are identical and include comparable sets of four
lenses 131 through 134 and 231 through 234, identical viewing
screen systems 135 and 235, and electronic image scanners 136 and
236. As illustrated, since all three image scanners are functioning
simultaneously, their output signals are fed simulaneously to the
recording apparatus 37, and these signals may either be recorded on
three separate tracks or three separate recording devices may be
utilized.
As best seen in FIG. 5, each of the lenses, as for example lens 34,
is mounted in an image box 49 which contains a planar reflecting
mirror 50 positioned at the proper distance behind the lens to
cause the images of the scanned items to be in focus in the plane
of the mirror. The image focused at the mirror 50 is reflected
downward through the periscopic telescopically engaged light tubes
51a and 51b by the planar mirrors 50a and 50b to the mirror 50c
which directs the image onto the ground glass viewing screen 35.
Similarly, the lenses 33, 32 and 31 are connected to the periscopic
telescopically engaged light tubes 52a through 52c, 53a through
53d, and 54a through 54e, these light tube systems respectively
projecting the images of the lenses 33, 32 and 31 to the ground
glass screen 35 by reflection from the bottom planar mirrors 55, 56
and 57 respectively. The four vertically spaced images on the
ground glass screen 35 are scanned by the electronic image scanner
36 which converts these images to electronic signals and transmits
them to the video tape apparatus 37 as previously described.
As just described, and as more clearly seen from the showings of
FIGS. 6 and 7 the periscope systems associated with the lenses 31
through 34 include different numbers of telescopically engaged
light tubes since the lenses require vertically spaced separation
different distances above the periscopic common mounting box 58,
more sections being required for the lens 31 than for the lens 34
because of the considerably extended vertical spacing of the former
with respect to the latter, and similarly for the intermediate
lenses 32 and 33. The periscope systems associated with the
mounting boxes 158 and 258 are of course arranged in the same
manner.
The telescopic arrangement permitting vertical adjustability of all
of the lenses of the system provides a ready means for precisely
positioning each viewing lens at the proper elevation with respect
to the associated items to be exaimined by that particular lens.
The support structure for maintaining the lenses at the desired
elevations is best seen from the showings of FIGS. 2, 3 and 4, from
which it is observed that each system is flanked on opposite sides
by a set of four vertically extending support tubes 59 fixedly
secured at their opposite ends to the floor and top of the upper
housing 44. Extending laterally from each of the lens-carrying
image boxes is a crossbar 60 which terminates in a pair of
adjustable friction clamps 61 each disposed about one of the
vertical tubes 59 and frictionally adjustable so that the image box
and lens may be vertically adjusted to any desired position and
held in that position by the frictional engagement between the
friction clamps 61 and the vertical support tubes 59. Similar
crossbars and adjustable clamps are seen to extend from each of the
mounting boxes 58 and electronic image scanner devices 36 so that
the entire scanning system associated with each group of four
lenses may be shifted as a unit vertically as necessary or
desirable.
Finally, as best seen in FIGS. 1, 2 and 4 a pair of lights 62 are
mounted to each crossbar 60 on opposite sides of the lens for the
purpose of illuminating the object being viewed by the particular
lens.
Having now described my invention in connection with a particularly
illustrated embodiment thereof, it will be appreciated that
variations and modifications of the invention may now occur from
time to time to those persons normally skilled in the art without
departing from the essential scope or spirit thereof, and
accordingly it is intended to claim the same broadly as well as
specifically as indicated by the appended claims.
* * * * *