U.S. patent number 3,601,284 [Application Number 04/860,616] was granted by the patent office on 1971-08-24 for fuel supply controlling apparatus.
This patent grant is currently assigned to Tokico Ltd.. Invention is credited to Shunro Yamawaki.
United States Patent |
3,601,284 |
Yamawaki |
August 24, 1971 |
FUEL SUPPLY CONTROLLING APPARATUS
Abstract
A fuel supply controlling apparatus comprising a fuel supply
controlling unit including a code number detection means into which
a code board member having a shape corresponding to a specified
code number is inserted whereby a fuel-supplying stand is activated
to supply fuel, and a fuel supply recording unit in which the
amount of supplied fuel and code numbers are automatically recorded
after fuel is supplied.
Inventors: |
Yamawaki; Shunro (N/A, JA) |
Assignee: |
Ltd.; Tokico (JA)
|
Family
ID: |
11572628 |
Appl.
No.: |
04/860,616 |
Filed: |
September 24, 1969 |
Foreign Application Priority Data
|
|
|
|
|
Jan 20, 1969 [JA] |
|
|
44/3997 |
|
Current U.S.
Class: |
222/2;
222/33 |
Current CPC
Class: |
G06Q
20/342 (20130101); G07F 13/025 (20130101); G07F
7/025 (20130101); B67D 7/14 (20130101) |
Current International
Class: |
B67D
5/08 (20060101); B67D 5/14 (20060101); G07F
7/00 (20060101); G07F 7/02 (20060101); G07F
13/02 (20060101); G07F 13/00 (20060101); B67D
005/10 (); G07F 013/00 () |
Field of
Search: |
;222/2,30,33 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: King; Lloyd L.
Claims
What I claim is:
1. A fuel supply controlling apparatus comprising a fuel-supplying
conduit system having one end opened in a fuel reservoir for
storing fuel and the other end provided with a fuel delivery
nozzle, means for sucking up the fuel from said reservoir, said
sucking up means being provided in said fuel supplying conduit
system, a code board member formed in a predetermined shape
corresponding to a predetermined code number, a controlling unit
into which said code board number, a controlling unit into which
said code board member is inserted, a code number detection means
for detecting said code number corresponding to the shape of said
code board member inserted into said controlling unit and for
generating a signal representative of said code number, said code
detection means being provided in said controlling unit, and a
printing means receiving said signal from said code detection means
and for printing said code number, said code number detection means
comprising at least one rotary body adapted to be rotated through a
predetermined angle corresponding to the shape of said code board
member, at least one contact baseplate having a plurality of
angularly spaced contacts and being fixedly provided opposite to
said rotary body, and sliding members provided on said rotary body
for rotation therewith, and sliding on the contacts of said contact
baseplate upon rotation of said rotary body, said signal generated
by said code number detection means corresponding to the respective
contact in contact with said sliding member of said code number
detection means.
2. The fuel supply controlling apparatus as claimed in claim 1,
further comprising a flowmeter provided in said fuel-supplying
conduit, said flowmeter measuring the amount of supplied fuel and
generating a signal of flow quantity, and wherein said printing
means prints said code number transmitted from said code detection
means and the amount of supplied fuel in response to the signal
transmitted from said flowmeter.
3. The fuel supply controlling apparatus as claimed in claim 1,
wherein said printing means is provided in a room which is remote
from said controlling unit and from said fuel supplying conduit
including said fuel delivery nozzle.
4. The fuel supply controlling apparatus as claimed in claim 1,
wherein said printing means comprises printing key driving coils
respectively and individually connected to the contacts of said
contact base plates and printing keys for printing the figures
driven by said driving coils, wherein said printing key driving
coils connected to said contacts in contact with said sliding
members corresponding to the shape of said code board member being
closed through said sliding members and contacts and driving said
printing keys.
5. The fuel supply controlling apparatus as claimed in claim 1,
comprising a plurality of said rotary bodies, said bodies
comprising rotary bodies, rotary cam plates having steps
successively at equal intervals on their outer peripheries said
contact baseplates having said plurality of contacts at the same
angular intervals as the steps of said rotary cam plates, said code
board member being a plane code board having longitudinal recesses
of a length adapted to engage with predetermined steps of said
rotary cam plates corresponding to a predetermined code number,
said code board being inserted into the apparatus in a radial plane
vertical to said rotary cam plates.
6. The fuel supply controlling apparatus as claimed in claim 5,
further comprising means for positively rotating said rotary cam
plates until the stepped portions of said rotary cam plates engage
with the recesses of said code boards.
7. The fuel supply controlling apparatus as claimed in claim 1,
wherein said rotary bodies are rotary gears having teeth on the
outer peripheries thereof, said code board member being a code
board having racks of a toothlike form, each rack having a length
corresponding to the code number, and said rotary gears are in mesh
with the racks of said code board being inserted and one thereby
rotated through predetermined angles corresponding to the length of
said racks.
Description
This invention relates to a fuel supply controlling apparatus and
more particularly to an apparatus for controlling fuel supply
systems adapted for the sale of fuel on the credit basis, the
self-service of fuel supply and other sales and other sales systems
for supplying fuel to specified customers.
In the usual gasoline station for supplying fuel to vehicles of
specified customers on credit sale, generally the operator records
the amount of supplied fuel on the sales bill each time of supply
of fuel and the customer puts his signature on the sales bill for
acknowledgement. Then the sales bills are summed up periodically on
a monthly basis for subsequent collection of money for the supplied
fuel from customers. Registering of supplied fuel amount in the
bills, periodical summation of collected money and other sales
businesses become complicated accompanying labor as the number of
customers increases and often there arises the possibility of
errors in writing credit code or vehicle numbers on the sales
bills.
Major transportation companies using automobiles such as bus and
taxi companies have their own fuel-supplying apparatus within the
enclosure of their firms whereat the drivers can desirably supply
fuel to their vehicles by themselves when it is needed and register
the fuel amount in the notes for reporting. However the described
system had disadvantages that the drivers sometimes failed in the
reporting or registering and the accurate control of the amount of
supplied fuel could not be effectively made.
The present invention is intended to remove the above drawbacks and
solve the problems associated with the fuel supply apparatus
commonly used in the gasoline station.
A principal object of the present invention is to provide a fuel
supply controlling apparatus which includes a fuel supply apparatus
which is capable of supplying fuel only when a specified code board
is inserted into a fuel supply controlling unit.
Another object of the invention is to provide a fuel supply
controlling apparatus in which the amount of supplied fuel and the
code number are automatically registered after the fuel is supplied
after inserting a specified code board into a fuel supply
controlling unit.
A further object of the invention is to provide a fuel supply
controlling apparatus which can automatically register credit code
numbers of customers in the sales bill upon selling the fuel on a
credit basis to specified customers.
Still another object of the invention is to provide a fuel supply
controlling apparatus which includes a detection means having no
electrical error and which uses a mechanical means to cooperate
with an indentation on the code board for detecting specified
numbers of the code board.
Other objects and features of the present invention will be
apparent from the following description when considered in
connection with the accompanying drawings, in which:
FIG. 1 is a schematic diagram showing a system of an embodiment of
the apparatus according to the present invention;
FIG. 2 is a plan view in transverse fragmentary section of an
embodiment of a code number detection means of a code board used in
the apparatus according to the invention;
FIG. 3A is a left side elevation taken along the line III A--III A
of FIG. 2;
FIG. 3B is a right side elevation of a cam switch of the apparatus
shown in FIG. 2;
FIG. 4 is a diagram showing an embodiment of an electrical circuit
system of the apparatus according to the invention;
FIG. 5 is a vertical front elevation of another embodiment of a
detecting means of code numbers of a code board;
FIG. 6 is a perspective view of an embodiment of the code board
used in the code number detection means; and
FIG. 7 is a side elevation in vertical fragmentary section of the
detection means.
Referring now to the drawings, FIG. 1 is a schematic diagram which
illustrates the system of an embodiment of a fuel supply
controlling apparatus according to the present invention. A suction
conduit pipe 11 extends from a known fuel-supplying standpost 10
into a fuel reservoir 12 under the ground. As a suction pump 14
driven by a motor 13 operates, the fuel stored in the reservoir 12,
for example, gasoline 15 is suctioned up through the pipe 11, which
passes through a flowmeter 16 and a fuel supplying flexible pipe
17, and reaches a fuel delivery nozzle 18. When the nozzle valve of
said nozzle 18 is opened the fuel is discharged into a gasoline
tank in the vehicle and the fuel supply is carried out.
A fuel supply controlling unit 19 is situated at a location apart
from the fuel supplying post 10. The unit 19 has a slit 20 into
which a code board as later described is inserted and has a code
board detection means accommodated therein. Alternately said
controlling unit 19 may be provided integrally with the post 10. As
the controlling unit 19 has inserted therein a specified code
board, an electric signal is transmitted through a connection 21
and an electromagnetic switch 22 is closed. Then an operation
switch 23 of the motor 13 is connected electrically to a power
source 24 through a connection 25. Simultaneously, a signal
receiving and recording part or unit 26 located in a controlling
room or an office room apart from the stand post 10 and the
controlling unit 19 receives the signal from the controlling unit
19 through a connection 27 and is actuated to be operable.
Upon supplying fuel, first the code board of the specified customer
is inserted into the controlling unit 19 whereupon the switch 23 is
connected to the power source 24 and simultaneously the signal
recording part 26 will operate. When the fuel-supplying operator
rotates a handle 28 a linkage mechanism 29 operates effecting the
zero resetting of the indication of an indicator 30 and
simultaneously the switch 23 is closed and the motor 13 is
operated. As the motor 13 operates the gasoline 15 is suctioned up
through the pipe 11 as described and is supplied to the vehicle
from the nozzle 18. A flowmeter 16 is constructed so that for
example a rotor in the interior thereof can rotate at a frequency
of rotation proportional to the flow rate of the fuel.
Corresponding to the flow quantity of gasoline passing through said
flowmeter 16 a flow quantity oscillator 31 generates a signal which
is supplied to the signal-recording part 26 through a connection
32. The flow quantity oscillator 31 may either be a cam oscillator
of a contact system or a high frequency oscillator of a noncontact
system which generates for example a pulse signal in response to
the flow quantity of gasoline. The indicator 30 may be directly
driven by the flowmeter 16 or it may be so constructed as to be
driven by the signal from the oscillator 31.
The signal-recording part 26 has a printer therein and as later
described it prints the quantity of supplied fuel and a code number
of the code board inserted into the controlling unit 19 on a sales
bill. Said signal-recording part 26 may have a means for recording
on a tape or means for making indication of the integrally
calculated amount of supplied fuel and memory of the flow quantity.
Also said printer may be replaced in use by a magnetic tape,
perforated tape, perforated card, etc.
Now an embodiment of the code board detection means in the
controlling unit 19 will be illustrated in connection with the
operation of the printer in the signal-recording part 26 with
reference to FIGS. 2 to 4. The means for printing the flow quantity
in the signal-recording part 26 in response to the signal from the
flow quantity oscillator 31 has been well known, the particulars of
which are therefore omitted.
Prior to the fuel-supplying operation as described above, a code
board 50 of a plate shape as shown in FIG. 2 is inserted into the
controlling unit 19 through the slit 20. When the code board 50 is
inserted, a stepped portion 51 provided on the side of the board 50
pushes a spring leaf 53 of a microswitch 52 and closes said switch
52. As the switch 52 is closed three relay coils 54, 55 and 96 in
parallel connection as shown in FIG. 4 are connected to power
source terminals 57a and 57b through a normally closed switch 56
and are thereby actuated.
As the relay coil 54 is actuated, said electromagnetic switch means
22 is closed and connects electrically the power source 24 with the
motor operation switch 23.
As the relay coil 55 is actuated, the relay switch 58 shown in FIG.
2 is operated. A contact member 58a is contacted with the contact
points a and b and closes both contact points. A contact member 58b
is removed from the contact points c and d and opens said latter
two contact points. At the forward end of a rotary shaft 60 of a
step motor 59 which is rotatable both in the forward or normal and
reverse directions is secured to a gear 97 which is meshed with a
gear 98 having teeth double the number of the teeth of the gear 97.
A rotary shaft 99 provided with and secured to the gear 98 is
rigidly secured with a generally circular cam 101 having a recessed
100 portion on the circumference thereof as shown in FIG. 3B. The
peripheral surface of the cam 101 is in attachment with the forward
ends of spring leaves 103 and 105 respectively of microswitches 102
and 104. When the motor 59 begins its rotation in the normal
direction the cam 101 is in a position as shown in FIG. 3B. In this
position, the microswitch 102 is closed and the microswitch 104 is
opened so that the switch contact member 107 associated with the
switch 102 shown in FIG. 2 is closed and the contact member 106
associated with the switch 104 is opened. Accordingly, if the
contact points a and b are closed by the contact member 58a as
described, the motor 59 is connected to the power source and
initiates the rotation in the normal direction.
Then by rotation of the motor 59 the cam 101 rotates through the
gears 97 and 98 and when the rotary shaft 60 has turned just one
rotation the cam 101 is rotated through one half rotation, being
lowered in its rotational speed by the gears 97 and 98. The forward
end of the leaf 103 falls in the recess 100 of the cam 101 so that
the switch 102 is closed and the contact member 107 is opened, and
consequently the motor 59 is stopped in its rotation.
The rotary shaft 60 of the motor 59 is separately rotatably fitted
with two rotary cam plates 61 and 62 of the same shape with a
determined interval axial spacing or between each other. On the
outer periphery of each cam plate 61, 62 are formed, as shown in
FIG. 3A, nine stepped projections 63a (64a), 63b (64b), . . . 63i
(64i) outwardly expanding in a spiral and stepped manner by every
one stage at an angular interval of central angle 36.degree. and
stepped portions 63j (64j) reaching to a position of minimum
diameter at an angular interval of approximately 18.degree. from
said projections 63i (64i). Torsion springs 65 and 66 have their
one ends respectively fixed to the rotary shaft 60 and their other
ends respectively secured to the cam plates 61 and 62. The springs
65 and 66 are in the woundup state to avoid unnecessary movement of
the cam plates 61 and 62 and engaged to stop members 67 and 68, the
ends of which are secured to the corresponding rotary shaft 60
respectively.
Respectively opposite to each of the cam plates 61 and 62, contact
baseplates 69 and 70 are immovably fixed to a chassis frame (not
shown). The rotary shaft 60 is rotatably fitted through the plates
69 and 70. The contact base plate 69 (70) is, a shown in FIG. 3,
formed with ten contacts 73a (74a), 73b (74b) . . . 73j (74j)
consisting of conductors at equal intervals of 36.degree. on the
outer periphery of a baseplate 71 (72) and a conducting contact 75
(76) of a circular shape in the center thereof. There are provided
slide wipers 77 and 78 respectively on the cam plates 61 and 62
through insulating plates 79 and 80 which consist of conductors
contacting in turn with each one of said contacts 73a (74a) . . .
73j (74j) on the contact baseplate 69 (70) and with a circular
contact 75 (76) making them conducting with each other and
slidingly rotate on the contact baseplates 69 and 70 with rotation
of said cam plates 61 and 62.
The code board 50 is provided at its forward end with two notches
81 and 82 into which the outer peripheral edges of the cam plates
61 and 62 may be respectively inserted. The lengths of said notches
81 and 82 respectively represent the individual coded number of the
code board 50. According to the present embodiment said code number
has two figures so that two of such notches of the code board are
provided, and the cam plates also are two in number but the number
of these sets may be desirably provided corresponding to any number
of the figures of the code number.
In the middle of the code board 50 there is provided a hole 83.
When the code board 50 is inserted through the slit 20 between
guide plates 84a and 84b (FIG. 3), the switch 52 is closed to
actuate the relay coil 96 as hereinbefore described and a relay
switch 88 of FIG. 3A is closed to operate a plunger coil 85. A
sliding rod 86 is biased towards the receded position to the right
side by a spring 87 and shifts to the left side by operation of the
plunger coil 85, whereby the forward end of said sliding rod 86
passes through holes on the guide plates 84a and 84b and hole 83 of
the code board 50 and thereby the code board 50 is locked securely
at the inserted position.
Before rotation of the motor 59 is started the cam plates 61 and 62
are diametrically located in such way that the positions of minimum
radii or positions between the stepped portions 63a, 64a and 63j,
64j are opposite to the code board 50. As described above, when the
relay coil 55 is actuated and the contact member 58a of the relay
switch 58 is closed, the motor 59 rotates in the normal direction
and rotary shaft 60 rotates. Then the stop members 67 and 68 make
the cam plates 61 and 62 rotate through springs 65 and 66. It is
herein provided that the notches 81 and 82, when the code number of
code board 50 is No. 57 for example, are in the lengths
respectively corresponding to No. 5 and No. 7. Therefore by
rotation of the motor 59 the cam plate 61 rotating in the clockwise
direction in FIG. 3A is engaged to or abuts against the notch 81 of
the code board 50 at the stepped portion 63f and the cam plate 62
is similarly engaged to or abutting against the notch 82 at the
stepped portion 64h. After the cam plats 61 and 62 are engaged to
the notches 81 and 82, the rotary shaft 60 continues to rotate and
thus winds up the torsion springs 65 and 66. When one rotation of
the rotary shaft 60 has been accomplished the motor 59 stops its
rotation as previously described.
With the rotation of the cam plates 61 and 62 the wipers 77 and 78
simultaneously rotate slidingly on the contact baseplates 69 and
70. When the stepped portion 63f of the cam plate 61 is engaged to
the notch 81 the wiper 77 attaches the contact 73f and the contact
75 making these contacts conducting and when the stepped portion
64h of the cam plate 62 is engaged to the notch 82 the wiper 78
attaches the contact 74h and the contact 76 making these
conducting.
Upon completion of the fuel supply from the fuel supply stand 10,
the operator may return the handle 28 to the initial position
whereupon the operation switch 23 is opened and the motor 13 is
stopped in its rotation, when a known printer of fuel supply in the
signal receiving and recording part 26 is actuated and prints the
amount of fuel supply on the sales bill 33. The above-mentioned
printer may be constructed so that it can simultaneously record the
date and time, kind of fuel, number of a fuel supply meter, name of
operator and the like on the sales bill. After printing of the
amount of supplied fuel on the bill 33, a printout signal is sent
to a step relay 89 which actuates to connect the contact member
from a nonoperated contact 95 to a contact 90 with a relay coil 91
being connected to the power source terminals 57a and 57b and it is
thereby actuated. As the coil 91 is actuated a relay switch 92 is
closed. Coils 93a to 93j for exciting ten keys of printing numbers
from 0 to 9 are respectively connected to the contacts 73a to 73j
of the contact baseplate 69 and the contacts 74a to 74j of the
contact baseplate 70. Thus when the switch 92 is closed, the key
coils out of the coils 93a to 93j are closed and actuated through
the relay switch 92, the contact 75 connected to said switch, the
wiper 77, and the contact to which the wiper 77 is in contact out
of the contacts 73a to 73j, and thereby the printing on the bill is
effected. In the present embodiment, as the wiper 77 contacts to
the contact 73f, the key coil 93f of the numeral 5 connected to the
contact 73f operates and the numeral 5 is printed.
As the printing of numeral 5 is made through the key coil 93f the
signal indicating the completion of printing is sent to the step
relay 89 which is switched over from the contact 90 to the contact
192 in connection. At this time the relay coil 91 is opened in a
deenergized state so that the switch 92 is opened and the circuit
including the contact baseplate 69 is opened. On the other hand the
relay coil 193 is closed and actuated so that relay switch 94 is
closed. Upon closing of the switch 94 the key coil 93h of numeral 7
connected to the contact 74h is actuated through the contact 76
connected to said switch, the wiper 78 and the contact 74h
connected to said wiper, and thereby the numeral 7 is printed. Thus
the number 57 is printed by this operation eventually. The
apparatus of the present invention may otherwise be designed such
that it may have a memory device to integrally memorize the total
amount of fuel supply, for example on a monthly basis and in the
order of numbers as detected simultaneously as the number such as
57 will be printed. When the printing of the numeral 7 through the
key coil 93h is accomplished and the bill 33 is printed out, there
is sent a signal indicating a completion of printing to the step
relay 89, which is again switched over to the nonoperated contact
95 with a switch 94 being closed and the circuit system with the
contact baseplate 70 being opened.
When printing of the keys corresponding to specified coils out of
the above key coils 93a to 93j is finished and the bill is printed
out, the switch 56 is temporarily opened by the signal for
indicating the completion of printing and the relay coils 54, 55
and 96 are opened for deenergization. By deenergization of the coil
54 the electromagnetic switch means 22 is opened and the operation
switch 23 is electrically disconnected from the power source 24. In
order to close the operation switch 23 so as to supply fuel again,
it is required to insert a new specified code board in the slit 20
of the controlling unit 19. Further, by deenergization of the relay
coil 55, the contact member 58a is opened simultaneously as the
contact member 58b of the switch 58 is closed and rotation of the
motor 59 is stopped. By deenergization of the relay coil 96 the
switch 88 is opened and the plunger coil 85 becomes deenergized and
the sliding rod 86 shifts rightwardly by force of the spring 87
whereby the locking of the code board 50 is released. Therefore the
code board 50 is rejected and pushed from the controlling unit 19 a
predetermined distance by the spring leaf 51 of the switch 52 and
remains in a free condition, and the switch 52 is thereby
opened.
As described above, when the motor 59 turns just one rotation in
the normal direction, the cam 101 rotates through a half turn from
a position as shown in FIG. 3b when the switch 104 is closed and
accordingly the contact member 106 is closed. Therefore when the
contact member 58b is closed as described above the motor 59
rotates in the reverse direction, as its reverse circuit is
connected to the power source through contact members 58b and 106
or when the motor 59 makes one rotation in the reverse rotation or
the cam 101 makes a half rotation the contact member 106 is closed
and the motor 59 stops its reverse rotation.
In the embodiment hereinbefore described the code numbers of the
code board 50 are 5 and 7 and the lengths of notches 81 and 82 are
provided so as to correspond to said numbers. Thus generally the
lengths of notches 81 and 82 may be set corresponding to the code
numbers as preferred. On the occasion when the lengths of the
notches 81 and 82 are the shortest said notches are engaged with
the stepped portions 63a and 64a and when the lengths of notches
are the longest said notches are not engaged by the stepped
portions 63i and 64i but the cam plates 61 and 62 make just one
rotation and stop.
Another embodiment of the code board detecting means is now
illustrated with reference to FIGS. 5 to 7 in which the same
numerals designate like parts as in FIGS. 1 to 4.
Before the fuel supply operation a code board 150 as of a shape
shown in FIG. 6 is inserted into the controlling unit 19 through
the slit 20 on the right side of FIG. 7. The code board 150 is
provided with racks 151 of toothlike shape on the upper surface
thereof, on the right and the left sides of the forward end of
which are respectively provided plane portions 153 and 152 of the
specified lengths. The lengths of said plane portions 152 and 153
are the lengths corresponding to the code numbers proper to the
code board 150 so that the lengths of rack portions 154 and 155
excluding the plane portions 152 and 153 on the left and right
edges of the rack 151 likewise have lengths representing the code
numbers.
A fixed shaft 160 secured to a chassis frame (not shown) is loosely
fitted with two rotatable gears 156 and 157 of the same shape at an
axial interval or spacing shown in FIGS. 5 and 7. The gears 156 and
157 are provided on their outer periphery with teeth meshing with
racks of the rack portions 154 and 155. The gears 156 and 157 have
torsion springs 65 and 66 between fixed shaft 160 which are engaged
with the stop members 67 and 68 as in the above embodiment. Also
the gears are provided with the wipers 77 and 78 to engage to the
contacts 73a to 73j and 75 and the contacts 74a to 74j and 76 of
the contact base boards 69 and 70 secured to the shaft 160.
By insertion of the code board 150 from the slip 20 the plane
portions 152 and 153 of the board 150 pass underneath the gears 156
and 157 which will thus remain stationary. By further insertion of
the board 150 first the gear 156 will mesh with the rack of the
rack portion 154 and start its rotation winding up the spring 65.
By further insertion the gear 157 also meshes with the rack of the
rack portion 155 and rotates in winding up the spring 66. When the
board 150 is completely inserted into a predetermined position the
gears 156 and 157 respectively rotate by the number of teeth
corresponding to the lengths of the racks of the rack portions 154
and 155.
When the code board 150 is inserted through the slit 20 to the
predetermined position as described, the leaf 53 of the microswitch
52 is pushed by the forward end of the board 150 and the switch 52
is closed. Upon closing of the switch 52 the plunger coil 85 is
actuated and the sliding rod 86 moves downwardly fitting through
the holes of guides 158a and 158b and a hole 159 of the board 150
which in turn is locked at the position of its insertion.
In case the code board 150 has a code number 64 in this example the
racks of the rack portions 154 and 155 respectively have the teeth
of the lengths corresponding to the numerals 6 and 4. Therefore by
insertion of the code board 150 the gear 156 is rotated through a
specified angle, corresponding to numeral 6 and the wiper 77
rotates slidingly on the contact base board 69 by rotation of the
gear 156 and stops in contact with the contact 73g. And by the
insertion of the code board 150 the gear 157 is rotated through the
other specified angle, corresponding to numeral 4 after the gear
156 starts its rotation, and the wiper 78 rotates slidingly on the
contact base board 70 by rotation of the gear 157 and stops in
contact with the contact 74e.
The electrical circuit system including the contacts 73a to 73j,
75, 74a to 74j, 76 of the contact base boards 69 and 70 and
printing key coils 93a to 93j has the same design as in the first
embodiment of FIG. 4 in which the step relay 89 is changed over and
connected consecutively to the terminals 90 and 92 and the key
coils 93g and 93e respectively connected to the contacts 73g and
74e, are consecutively actuated, whereby the numerals 6 and 4 are
printed consecutively, in consequence the number 64 is printed.
Operation of the other circuit components is quite identical as in
the above-described embodiments.
While the invention has been described with respect to the specific
and preferable embodiments, various modifications and variations
thereof will be apparent to those skilled in the art without
departing from the scope of which is set forth in the appended
claims.
* * * * *