U.S. patent number 3,754,245 [Application Number 05/211,909] was granted by the patent office on 1973-08-21 for system indicator board.
This patent grant is currently assigned to Ferranti-Packard Limited. Invention is credited to Henry Otto Peprnik.
United States Patent |
3,754,245 |
Peprnik |
August 21, 1973 |
SYSTEM INDICATOR BOARD
Abstract
A board has an array of uniformly arranged slotted openings with
surfacing material covering the unused ones of said slotted
openings. Electrical indicator devices with projections designed to
project through said slotted openings are mounted projecting
through selected ones of said slotted openings at which openings
the surfacing material has been broken. Means are provided for
fastening the device in place. The electrical devices have been
designed to represent the state of components or conditions of a
system which are to be dynamically represented.
Inventors: |
Peprnik; Henry Otto (Downsview,
Ontario, CA) |
Assignee: |
Ferranti-Packard Limited
(Toronto, CA)
|
Family
ID: |
22788785 |
Appl.
No.: |
05/211,909 |
Filed: |
December 27, 1971 |
Current U.S.
Class: |
340/815.47;
40/902; 340/286.13; 361/773; 361/774 |
Current CPC
Class: |
H02B
15/02 (20130101); Y10S 40/902 (20130101) |
Current International
Class: |
H02B
15/00 (20060101); H02B 15/02 (20060101); G09f
009/14 () |
Field of
Search: |
;340/381,225
;317/11B,11C ;40/13R,13E,13L |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Caldwell; John W.
Assistant Examiner: Wannisky; William M.
Claims
I claim:
1. System indicating apparatus comprising:
a board having an array of substantially uniformly arranged slotted
openings therein,
a surfacing material covering said board and the unused ones of
said slotted openings, said surfaces being breakable at said
openings,
electrical indicator devices with projections designed to project
through said slotted openings located on the viewing side of said
board at selected locations corresponding to said slotted openings,
with said projections extending through openings at said locations
and through surface material broken thereat;
such electrical devices being designed to represent the state of
components or conditions of said system which are to be dynamically
represented;
means for cooperating with said projections for removably fastening
said devices in place,
means on said projections allowing the electrical coupling of
electrical connections to said projections, on the rearward side of
said board,
2. A system indicating apparatus as claimed in Claim 1
including:
means portraying statically represented components of said system
on the viewing side of said board in schematic functional
relationship to the electrical devices.
3. Means for portraying the status of a system wherein the system
includes elements whose change of state it is desired to observe
and members whose change of state is assumed constant during the
observation period,
a board having an array of substantially uniformly arranged slotted
openings therein;
a surface covering said board and the unused ones of said slotted
openings, said surface being breakable at said openings,
whereby electrical indicator devices provided with projections
designed to project through said slotted openings are located on
the viewing side of said board at selected locations corresponding
to said slotted openings,
whereby means for cooperating with said projections are made for
removably fastening said device at said selected locations,
such devices and projections being designed so the electrical
connections for said devices are made by connection to said
projection rearwardly of said board,
said electrical devices being designed and connectable to portray
the state of conditions of said system which are dynamically
portrayed,
means on the same side of said board as said devices portraying
visually the connections between the loci where said conditions
exist portrayed by said devices.
Description
This invention relates to means and a method for visually
portraying the state of systems wherein some conditions or
components of the system are represented dynamically and related to
other components of the system which are indicated statically.
For example, in a typical hydraulic control system: control, power,
bypass, safety, etc., valves, the location of power operated
equipment and such matters as pressure and rate of flow might be
considered as normally changeable facets of the system, whose
condition or degree might change from time to time and thus should
dynamically be represented while the hydraulic power lines or
control lines connecting dynamically represented devices would
usually be statically represented.
The invention provides means and a method whereby the elements
whose changeable status it is desired to portray, are portrayed by
changeable electrical indicating elements arranged on a board while
the means which are to be statically indicated are displayed
(usually by contrasting colors) on the board, indicating the
relationship of the hydraulic lines to the elements such as valves
which are dynamically indicated.
In another example, an electric distribution system dynamic
elements (i.e., facets of the system with a high probability of
change during an observation or control period) include: circuit
breakers, variable resistances, switches, and the amounts from time
to time of current and voltage. On the other hand, the power and
control lines connecting these elements, will usually be statically
portrayed. Thus in accord with the invention, the elements
dynamically represented will be portrayed by electrical indicators
on the viewing side of a display board, while (also on the viewing
side of such board) the connections between the elements are
statically portrayed (usually in contrasting colors).
For the discussion of the representation of systems, in accord with
the invention, the term "dynamic system elements" will be used to
describe those elements of the system with which, on the display
indicator board, whose change of amount, condition or state is
dynamically represented, while the term "static system elements"
will be used to describe those components of a system which are
statically represented.
In accord with the invention, the system indicator comprises: a
board, one side of which is visible in the viewing direction. The
board is designed to provide a number of locations uniformly
distributed thereon (for example, regularly spaced in rows and
columns) whereat a projection from an electrical device may be
inserted therethrough (the board being apertured or weakened at
these locations to allow this).
Devices so mounted, dynamically representing elements whose state
or condition is changeable will, in accord with the invention, be
shown on the board in functional relationship to elements which are
statically portrayed, such as the electrical power or control leads
connecting the devices.
The electrical devices are mounted with the projections projecting
rearwardly through the board at the selected locations, the
projections carrying the electrical connections for coupling to
electrical leads for operating the devices. In the preferred form
of the invention, the projection provides means for mounting of the
device on the board. Electrically operable visible devices are
therefore mounted at the selected locations which are selected to
properly portray the system. The connections between the
dynamically represented devices in the real system, which are to be
represented on the board as static elements, are portrayed
therefore as lines or bars of contrasting color, static on the
board and arranged in relation to the dynamic elements in a manner
which simulates to the viewer, the overall appearance of the
system. Other elements than those mentioned, and desired to be
represented to the viewer as static or dynamic, are therefore
represented on the visible side of the board as static or dynamic
representations respectively.
To refer briefly to a further example of the use of the invention,
permanent lines or bars on a board may represent the rails of a
transportation system, while the changeable dynamic elements,
represent the switches, i.e., as open or closed, or as directed to
one line or another.
In drawings which illustrate a preferred embodiment of the
invention:
FIG. 1 shows an exploded view of a portion of a board in accord
with the invention, indicating the mode of application of the
dynamic representation elements thereto and the electrical
connection thereto;
FIG. 2 shows a side view of one of the devices applied to a
board;
FIG. 3 shows a view of an indicator in accord with the invention,
showing an indication of an electrical system; and FIGS. 4a and 4b
show a view of an indicator in accord with the invention, showing
an indicator of an hydraulic system.
In FIG. 1 is shown a board 10 of laminar form, comprising a metal
or plastic (here metal) slotted structure 11 with a thin breakable
insulating layer 12 covering the structure and the slots. The layer
12 is preferably made of plastic, preferably a base layer of mylar
covering the metal. Where the board is to be exposed to ultra
violet light, the mylar, which is somewhat sensitive to ultra
violet radiation, is covered with a protective coating. The coating
which we prefer is made of polyvinyl fluoride and is sold by Dupont
of Canada Limited at Toronto-Dominion Bank Tower, King Street West,
Toronto, under the trade mark TEDLAR. The mylar layer of 0.0050
inch and the TEDLAR layer of 0.0015 inch may easily be broken at
selected slotted locations. The slots 14 in the board are provided
as a convenient form of aperture for the mounting of the electrical
indicating devices with leads passing therethrough. Apertures,
otherwise shaped, may alternatively be provided. The apertures,
rather than being preformed, may be made available through weakened
areas or "punch-out" areas. In fact, the board shown in the
preferred embodiment may be considered either as an apertured board
with an added surface (for uniformity of appearance over unused
apertures and for other reasons as pointed out hereafter) or may,
with the surfacing material be considered as a non-apertured board
with weakened areas.
The apertures, or locations where apertures may easily be made,
(both included within the term "aperture location" hereafter) are
however uniformly disposed in two or more dimensions on the board.
Thus, in the preferred embodiment, the slots are uniformly disposed
by being regularly spaced in several directions, including
horizontally vertically and diagonally, rendering choices as to the
location of dynamic elements equally available in all areas of the
board.
It is within the scope of the invention, with a rectangular array
of locations, such as that shown, that the row and column spacing
may be different, although in each case, the aperture locations are
regularly spaced along a row or along a column. It is also within
the scope of the invention to have the locations otherwise
uniformly disposed over an area, in a different arrangement, such
as with the aperture locations so disposed as to be considered as
defining three rows at 60.degree. to each other.
With the rectilinear array of slots in row and columns as shown, it
is found that the diagonally directed slots 14 leave a larger
spacing between slots than would exist if these slots were
horizontally or vertically directed.
For mounting at selected aperture locations on the board,
electrically controlled devices D are provided, connectible with
electrical leads, through the slots to electrical leads at the rear
of the board. In the preferred embodiment the electrical device may
be a meter, light, or clock, but one of the devices most frequestly
used will be a two-position electromagnetic actuable element, of
one of the types disclosed in U.S. Pat. Nos.: 3,365,824 issued Jan.
30, 1968; 3,140,553 issued July 14, 1964; or 3,295,238 issued Jan.
3, 1967.
The devices of various types are provided with a rearward
projection 18 designed to extend through a selected aperture
location, and carry therethrough from the device, the leads
necessary, when properly connected, to assure the operation of the
device and design for firmly mounting the device D on the display
board 10. As shown in the preferred embodiment, a device for
mounting on the board, has a projection 18 designed and shaped to
make a relatively easy sliding fit with the slot 14 when the
surface coat 12 is broken. Leads 20 connected to operate whichever
device D is involved, are embedded in the material, which is
preferably of moulded plastic and are led to terminals 21. The
leads 20 are insulated unless effectively prevented from contacting
the metal of the display board as hereinafter described. The
operating leads 24 for the connector from controls or power
sources, not shown, are connected to a suitable terminal member 22
designed to mate with the projection, and in mating, to make the
necessary respective electrical connections between leads 24 and
leads 20. Mounting of the device may be achieved in any of a number
of possible means. In the preferred embodiment, an aperture 26 is
provided on the projection at a location which will appear at the
rear of the board. The leads 20 are, of course, diverted to avoid
this aperture. The device is therefore held in place by moving a
wedged peg 30 into the aperture until the device is retained firmly
in place.
The use of the invention is demonstrated in FIG. 3 wherein a
portrayal is shown of a portion of an electrical distribution
system. The system is graphically portrayed in FIG. 3, wherein the
elements selected for dynamic portrayal on the circuit is line L1,
the voltage in line L1 (by voltmeter D2) the state of a switch load
(indicated by device D3) in line L1, the current in line L1,
indicated by ammeter D1 the operation (or not) in lines L2, L3, or
L4, indicated by devices D4, D5 and D6, the state of a switch in
lines L3 and L4 indicated by devices D7 and D8.
The ammeter and voltmeter D1 and D2 will of course, be actual
elements indicating the actual conditions in the system portrayed,
but shaped with projection 18 to be mounted and connected as
indicated in FIG. 1. The devices D3-D8 will be shaped and mounted
in FIGS. 1 and 2 and will be preferably two-sided electromagnetic
indicators of the type described in U.S. Pat. Nos.: 3,365,824;
3,140,553 or 3,295,238, previously referred to. Thus the load
indicators D4, D5, D6 will, on one side of the reversible elements
show a radiant symbol indicating the load is operating, as
displayed by elements D4 and D6, and on the other side, show a dull
symbol, indicating the load is not operating, as displayed by
element D5. Alternatively, the dull and radiant symbols may be
replaced by contrastingly colored faces. The devices D3, D7 and D8
will on one contrasting face show a closed switch (as displayed by
devices D3 and D8) and on the other contrasting face show an open
switch (as displayed by device D7). The electrical connections made
to the reverse side of the board will control the indication of the
device in accordance with sensing means determining the state of
the corresponding devices in the system. Digital numeric or
alphanumeric indicators may be attached in the same manner and form
a part of the functional circuit.
The devices were placed by selecting the desired slot locations
from among the uniform disposition of such locations on the board
10. These represent the part of the system dynamically displayed.
Lines L1, L2, L3, the voltmeter connection and the ground
connection represent the part of the system statically displayed.
These will be painted, taped or otherwise formed on the board. The
lines and connections may be of magnetic material, magnetically
attached to the board for easy removal. Where the board is of
aluminum, plastic, or other non-magnetic material the board may be
provided with a layer of magnetic material to allow the correct
attachment.
The board, therefore, allows a representation of this system or
other systems through a combination of flexibility in location of
dynamic elements and the concomitant location of static elements
thereon.
FIG. 4 shows a hydraulic control system where static components
being fluid lines K1 and K2, K3 and K4 sensor connection K5,
control connection K6 and sensor and load are statically indicated
by painting or tape. Devices E1 and E2 are dynamically indicated
devices, mounted in selected slots as demonstrated in FIG. 2. E1
and E2 will be electromagnetic elements of the type disclosed in
the patents previously referred to. E1 on one face will indicate
that lines K1 and K2 are directly connected to the load and on the
other face will indicate that lines K1 and K2 are reversed in
connection to the load. Similarly, element E2 will show, on one
side, lines K3 and K4 connected in one sense to a servo valve, with
upward movement of the valve indicated; and on the other side,
element E2 will show lines K3 and K4 connected in the other side to
a servo valve with downward movement of the valve indicated. The
dynamic devices operated by electrical connections at the rear of
the board will display conditions sensed by sensors in the actual
system controlling the devices through the leads.
Returning to the specific embodiment of the invention as
illustrated in FIG. 2, the slot-like arrangement with the breakable
plastic coating on the metal board provides additional insulation
along the long edges of the slot for the electric leads in the
projection passing therethrough. With the preferred coating it has
been found that the broken coating provides insulation along the
long edges of the slot so that, in some applications, it has been
found possible to leave the projection leads bare on a side facing
a long edge of the slot and to depend on the inwardly deflected
strips of coating to insulate the leads from the metal board.
* * * * *