US3306536A - Multiple totalizer - Google Patents

Description

Feb. 28, 1967 R. M. WILSON 3,366,536

MULTIPLE TOTALI ZER Filed July 20, 1965 5 Sheets-Sheet 1 FIG; 1

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MULTIPLE TOTALIZER Filed July 20, .1965 5 Sheets-Sheet 5 NVENLIOR. I M156;

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United States Patent Office William M. Pa., a corporation of This invention relates to a multiple totalizer and, in particular, to a means for recording the operation or output of a machine by any one of a number of operators on separate counters associated with particular operators.

The apparatus of .this invention is capable of counting or recording the output of any machine whether that output is in the form of separate units or a quantity flow. For example, this apparatus can record the number of articles produced by a particular industrial operator working on a punch press or it can be used to record the number of gallons of fuel pumped by a service station attendant.

It is the primary advantage of the apparatus of this invention that an operator cannot turn on nor operate the machine without first engaging his separate counter which is generally accomplished by simply inserting and rotating his key in the lock assigned to him. Further, that as soon as one separate counter is engaged, no other counter can be engaged and that the machine is automatically turned off before the first operators counter disengages and his key is removed.

It is another advantage of this invention that a master lock cylinder is provided :so neither the totalizer nor the machine can be operated by any of the individual counter locks until the master lock is placed in the unlocked or operating condition.

It is a further advantage of this invention that a minimum load is placed upon the key by the actuating components of the totalizer and that the apparatus is inexpensive to construct and maintain and simple to operate. These and other advantages of this invention will become more apparent from the description contained hereinbelow and from the drawings attached hereto, wherein:

FIG. 1 shows, in front elevation, a totalizer conveniently embodying my invention in one form.

FIG. 2 is a rear view of the totalizer with the greater portion of the rear wall of its housing broken out to expose the mechanism at the interior with all of the parts of the mechanism in their normal positions.

FIG. 3 is a view similar to FIG. 2 with one of the lockactuated units of the mechanism in the partially operated position.

' FIG. 4 is a transverse sectional view taken as indicated by the angled arrows IV-IV in FIG. 3.

FIG. 5 is a fragmentary View in section taken as indicated by the angled arrows VV in FIG. 4.

FIG. 6 is an exploded view in perspective of one of the lock actuated units of the mechanism.

' FIG. 7 is a fragmentary detail view in section taken as indicated by the angled arrows VIIVII in FIG. 6; and

' FIG. 8 is a View similar to FIG. 3 showing an alternative embodiment of my invention in the complete operating condition.

' Although this invention is shown and described with reference to particular forms and arrangements in combination for recording intermittent movement of an electrically controlled machine, it should be understood that these are only the preferred forms and that other arrangements are readily possible.

Referring preliminarily to FIG. 3 of the drawing (showing an intermediate operative stage), this form of the 3,306,536 Patented Feb. 28, 1967 totalizer of this invention has an outside, generally square supporting frame 10 to which the cut away back panel 11 and front panel 13 are attached. Panel 11 supports a generally rectangular lock bar 20 for limited lengthwise, or vertical movement as the totalizer is positioned, by means of a stud or cam 21 being mounted in a slot 12 in panel 11. Lock bar 20 is also supported by a pair of flanking, elongated parallel flange supports 24 attached to the inside surface of back panel 11 as shown in FIG. 4. Lock bar 20 has two lengthwise or vertical rows of generally inverted L-shaped slots 22 formed therein, each slot consisting of a long, lengthwise segment 22a and a short transverse segment 22]). The function of lock bar 20 is described further below. Located behind lock bar 20, as shown in FIG. 3, are two vertical rows of latch bars 30 having U-shaped cross-sections, each bar being mounted for lengthwise or horizontal movement which is transverse to lock bar 20. Each latch bar 30- is supported for movement on its side flanges 31 (FIGS. 4 and 5) sliding within a pair of recesses 42a formed in an L-shaped flange support 42 which is fixedly attached to the front panel 13 as shown especially in FIG. 4. Located behind the latch bars as shown in FIG. 3 are two rows of vertically arranged, separate counters 40, each fixedly supported in the frame 10 and each having a counting shaft 41 extending through a flange support 42 at one end and frame 14 at the distal end. An input shaft 50, connected externally to a source of rotary motion or directly to the machine whose output is to be recorded, extends downwardly through the frame 10 at the top and drives a transverse shaft 51 by means of a pair of meshed bevel gears 53, 54. Shaft 51, by means of bevel gears 55 and 56, located on the left side of lock bar 20 as shown in FIG. 3, drives the left secondary input shaft 59a and bevel gear 57, meshed with bevel gear 54, drives the right secondary input shaft 50b. As disclosed in greater detail below, the latch bars 30 control the engagement of the individual counters 40 With the secondary input shafts 50a, 50b and lock bar 20 has a separate function of preventing more than one counter from being engaged at any time.

Referring now to FIG. 4, a pair of lock cylinders 60 are shown mounted in holes within the frame 10 each to receive a key inserted in .the direction from the front panel 13 toward the back panel 11. Lock cylinders 60 shown in FIG. 4 are part of two vertical rows of lock cylinders indicated in dotted lines in FIG. 3. Each lock cylinder 60 is held within the frame 10 by locking nut 61 and each has tumblers set to receive only a particular cut key which is given to a particular operator. Each lock cylinder has a stud or cam 62 which extends in an axial direction from the back surface of the lock cylinder from a location adjacent the periphery of the cylinder.

Each latch bar 30 as shown in FIGS. 4 and 5 has an inwardly directed lip 32 which is either in contact with or laterally displaced from the front surface of a bevel gear 43. Each latch bar also has a generally arcuately shaped slot 34 extending transverse to bar 30 with an enlarged portion 34a as shown in FIG. 6 and each bar 30 is supported at the end opposite its counter by its adjacent lock cylinder 60.

Referring now also to FIG. 7, the inwardly directed end of each counter shaft 41 is equipped with a bevel gear 43 rected lip 32 of its associated latch bar 30. The components shown in FIG. 6 control the operation of one counter.

Front panel 13 (FIG. 1) is provided with a pair of elongated openings 14, 15 behind which are located a transparent material 16 and a paper 17 (FIG. 6) giving the name or number of the lock or operator for this counter. The numbers of the counter 40 are visible through opening 14. The counter 40 has a series of counting wheels (not shown) which are so mounted on shaft '41 and connected to each other that they count the rotations of shaft 41 and record the count on numbered dials. Counters similar to the ones shown and described herein are well known in the art.

It should be understood, as shown in FIG. 4, that the stud or cam 62 of each lock cylinder 60 extends through, first the arcuate slot 34 of latch bar 30 and then through the L-shaped slot 22 of the lock bar thereby moving both bars as the stud or cam and the lock cylinder rotate through approximately one-half revolution.

FIG. 8 presents a diagrammatic view of an alternative form of the invention connected with an electric current Which powers the machine directly controlled by an operator. In describing the apparatus shown in this figure, largely'the same reference numerals have been used as with the apparatus of FIGS. l-7 so that similar parts are more easily recognized and different numbers are used with those parts to which particular reference is made.

In the FIG. 8 apparatus, four lock cylinders 60 are mounted one above another in a row and a master lock cylinder 80 is located beneath the others. Master lock cylinder 80 is similar to cylinders 60 except that it has no latch bar associated with it and its stud or cam 82 orbits in a rectangular slot 84 for the reason described below.

A single input shaft 50x is mounted for rotation around a vertical axis and four bevel gears 58 are fixedly mounted on shaft 50x at levels opposite to the four bevel gears 43 mounted on separate counter shaft 41. Three of the four counter gears 43 are held in the disengaged position by their respective latch bars 30 but one gear 43a is meshed with a gear 53a as its latch bar 30a is positioned to the right of its initial position. The counter 40a shows the count 123 on its dials.

As described in connection with the partially operated structure of FIG. 3, lock bar 20 is supported for limited vertical movement and each of the latch bars 30 is supported for limited horizontal movement.

A machine whose output is to be counted or recorded by the separate counters 40 is indicated generally by the numeral 108 and, as indicated above, this machine may be any kind of apparatus whose motion or output can be measured. An ordinary operator-controlled normally open switch 109 is included in the general circuit shown. A source of power is indicated by the numeral 107 and a conducting wire 112 carries the current from the source 107 to a reciprocating apparatus 91 which includes a solenoid 95, a pawl 97 and a ratchet 98 which is mounted on shaft 50x. A spring 96 continually presses pawl 97 into engagement with ratchet 98 and spring 101 withdraws pawl 97 when solenoid 95 is deenergized. The pawl 97 is pivoted at one end of a link 94 which is connected to an arm 99 fulcrumed on a fixed pivot 100, said arm being subject t-o-a spring 101 and operable by means of a solenoid 95. If current continuously flows through the circuit When the machine is operated, then apparatus 91 would be equipped with a circuit breaker 110 so that intermittent action of pawl 97 is realized, as further described below. Conducting wires 104 and 105 complete the circuit which includes a lock bar switch 102 which consists of a movable contact 103 and a stationary contact 120. When lock bar 20 is raised to the full operating position, as shown in FIG. 8, it presses contact 103 against contact 120 completing the circuit and allowing the machine 108 to be operated when the operator closes the control switch 109. It is understood that if one closing of the switch 109 causes the machine to cycle once, thus producing an increment of one in the connected totalizer, circuit breaker 110 would not be required. If the machine is of the type that cycles continuously as long as start switch 109 remains in the closed position, then circuit breaker 110 will become operative to produce an increment of one in the connected totalizer for each cycle of the machine. The circuit breaker 110 is in the form of an eccentric cam on a shaft of the device 10 8 and serves to intermittently close switch 111 in a secondary circuit 112, 113 in which the solenoid 95 is included. Accordingly, during each rotation of the shaft of the device 108 the switch 111 is closed with resultant intermittent energization of the solenoid 95 in the secondary circuit and intermittent picking of the ratchet wheel 98 by the pawl 97 to cause actuation of the counter 40a coupled as above to the shaft 50x.

Operation of the preferred form of the apparatus of this invention is substantially as follows. For simplicity, the apparatus of FIG. 8 will be referred to but it should be understood that the apparatus fully disclosed in FIG. 3 operates in the same manner.

As indicated above, the master lock cylinder renders the device inoperable to any of the keyholders when the master lock stud is rotated to position 82a. This will prevent the lock bar 20 from being raised and make it impossible to turn any of the subsidiary lock cylinders 60; thus the device cannot be started. The key to master lock cylinder is arranged so that it can be removed when the cylinder is in either the locked or clear position; thus the supervisor can lock the machine and remove his key. The individual look cylinders 60 are so arranged that the key can only be removed when the cylinder is in the locked condition. Therefore, it will be seen that the operator cannot remove his key until he has locked the machine, disconnecting his totalizer.

The totalizer can now be operated by an individual operator who has a key which will operate one of the lock cylinders 60. It will be noted that FIGURE 6 is taken from the rear of the device, inaccessible to the operator. Therefore, when reference is made to the operator turning his key clockwise, the rotation of the lock cylinder in this view will appear counter-clockwise. After the operator inserts his key in cylinder 60a and begins to turn the key clockwise, stud 62a of the third lock cylinder from the bottom will immediately engage the far side of the arcuate slot 34 formed in the latch bar 30a causing the said bar to advance to the right as shown in FIG. 5. Movement of the latch bar 30a to the right allows bevel gear 43a to engage bevel gear 58a on the input shaft 52.

Due to the configuration of the slot, complete movement of the latch bar and engagement of the gears will be completed during approximately the first 22 /2 of movement of the stud or calm. During this are of movement, the lock bar will have been raised very little. Further movement of the lock cylinder, while effecting no further movement of the latch bar, will raise the lock bar 20 closing switch 102 completing the circuit which allows operation of machine 108. It should be noted that when the lock bar 20 has been raised by rotation of one look cylinder, the stud or cam on the end of all the other lock cylinders is embraced by the longitudinal portion of the L-shaped slots in the lock bar preventing their turning and thereby preventing the engagement of any other totalizer.

When one operator has completed his shift or decides to close the machine, he rotates his key counter-clockwise as shown in FIG. 6 so that stud 62a first lowers lock bar 20 breaking the circuit at switch 102 preventing further operation of the machine. Further movement of the lock cylinder causes the stud 62a to move latch bar 30a to the left thereby disengaging bevel gear 43a from bevel gear 58a against the spring 46a. In this condition, the machine cannot be operated by manual switch 109* until a second operator causes his counter to be connected to the input shaft 50x. When none of the separate counters are engaged, the master lock can then lock the totalizer and machine against unauthorized use by causing stud 82 to assume position 82a thereby preventing movement of the lock bar 20 and consequently preventing rotation of any of the other lock cylinders, unlocking of the machine or connecting of any of the totalizers.

It should be understood that while FIG. 8 shows the movement of the lock bar 20' directly actuating switch 102, exactly the same purpose would be achieved if simple mechanical linkage permitted the actuation of or permitted operative access to switch 109. Similarly, in the form shown in FIGS. 3 and 4, the movement of the lock bar 20 could, by simple mechanical linkage, unlatch and permit the operation of a manually operated machine the cycling of which would be transmitted to input shaft 50 and thus recorded on the appropriate totalizer.

It should be understood that the totalizer of this invention can quite easily be adapted for recording the discharge or pumping of liquid. As such, input shaft 50x may be connected to and driven by the pump meter shaft as the reciprocating apparatus shown is not necessary. Of course, the apparatus of this invention can be mounted and operated in an attitude different than that shown and certain parts can be changed to modify the operation without limiting its operation.

Although this invention has been described with reference to specific forms and embodiments thereof, it will be apparent to those skilled in the art that various changes other than those referred to above may be made in the form of the apparatus, that equivalent elements may be substituted for those illustrated in the drawings, that parts may be reversed, and that certain features of the invention may be used to advantage independently of the use of other features, all within the spirit and scope of the invention as defined in the appended claims.

I claim:

1. A multiple totalizer for recording the output of a machine by any one of a number of operators on separate counters, said totalizer comprising 'a plurality of counters each having a driving shaft and each associated with a particular operator,

"a count input shaft connected to the machine Whose operation is to be recorded, said shaft being rotated when the machine is operated,

a plurality of lock cylinders mounted in a row with their axes substantially parallel to each other, each cylinder having a cam or stud extending axially from the end surface at a location proximate the perimeter of said surface, each lock cylinder adapted to receive only a key of a particular conformation, v

a lock bar extending transverse to the axes of the lock cylinders andlocat ed abutting the end surface of each cylinder, said bar having a series of substantially L-shaped slots formed therein, each slot being located substantially opposite the end surface of a lock cylinder to receive the cam or stud of a cylinder therein,

the lock bar being mounted for limited movement lengthwise,

latch "bars for all counters mounted substantially parallel to each other and transverse to the lock bar for limtied movement lengthwise, one end of each latch bar having a slot formed to receive the stud or cam of a lock cylinder therein, each latch bar being detachably in contact with the driving gear of a counter to engage and disengage the counter shaft with the input shaft when the latch bar is moved lengthwise whereby rotation of a selected cylinder and its cam or stud moves the lock bar lengthwise, thereby preventing rotation of any other lock cylinder cam or stud, and moves the associated latch bar lengthwise to engage the related counter shaft with the input shaft so that operation of the machine is rerecorded on said individual counter, and

an electrical circuit controlling operation of the machine 6 whose operation is to be recorded, an electrical switch connected within the electrical circuit controlling operation of the machine, said switch being normally open when the lock bar is in its initial position and said lock bar closing the switch by operative contact therewith to complete the circuit when moved lengthwise by the cam or stud of a particular lock cylinder.

2. The totalizer as defined in claim 1 wherein the cam or stud of each lock cylinder is positioned at the junction of the two segments of the L-shaped slot when that lock cylinder is in its initial position, said cam or stud upon rotation pressing against the side of the short segment of the L-shaped slot to move the lock bar lengthwise and also presses against the side of the slot of the associated latch bar to move said bar lengthwise and transverse to the lock bar.

3. The totalizer as defined in claim 2 wherein the long segment of the L-shaped slot extends lengthwise in the lock bar and the slot extends substantially transverse in the latch bar so that when the cam or stud of a particular lock cylinder rotates, the cam or stud passes along the transverse segment of the L-shaped slot while moving the lock bar lengthwise and passes along the slot in the latch 'bar while moving it lengthwise but transverse to the lock bar. 7

4. The totalizer as defined in claim 3 further including means for allowing lengthwise movement but preventing transverse movement of the lock bar so that when the bar is moved lengthwise by the cam or stud of one lock cylinder, the cams or studs of the remaining lock cylinders pass within the longitudinal segments of the L- shaped slots thereby preventing subsequent rotation of said lock cylinders.

5 The totalizer as defined in claim 4 further including each counter driving shaft being mounted substantially parallel to each other and transverseto the input shaft, each counter shaft having a bevel gear mounted for limited axial movement thereon but for rotation with the shaft, spring means for urging the bevel geartoward theinput shaft, the input shaft having a bevel gear for each counter shaft gear located on said input shaft proximate thereto, and

each latch bar being in contact with a counter shaft gear to hold said gear away from the bevel gear against the spring means when said latch bar is in the initial position and so disposed that when the latch bar is moved lengthwise, the spring means presses the bevel gear axially to engage the gear mounted on the input shaft. 6. The totalizer as defined in claim 5 further including a master lock cylinder mounted in a row with and having its axis parallel to the lock cylinders, said master cylinder having a cam or stud extending axially from its end surface at a location proximate the perimeter of said surface, a lock bar proximate the master cylinders end surface, said lock bar having a substantially rectangular slot located substantially opposite the end surface of said master cylinder whereby, upon rotation of the master cylinder, the lock bar is prevented from being moved into its operative position.

7. The totalizer as defined in claim 6 further including means associated with the master lock cylinder for preventing the stud or cam of said cylinder from moving the lock bar into its operative position.

8. A multiple totalizer for recording the operation of a machine by any one of a number of operators on his individual counter, said totalizer comprising a plurality of individual counters mounted in two or more rows one counter above the other, each counter having a driving shaft extending parallel to the other shafts,

an input shaft for each row of counters, extending transverse to the individual counter shafts, a cross shaft connected to each input shaft by bevel gears a lock bar extending transverse to the axes of the lock cylinders, said bar having two or more rows of substantially L-shaped slots formed therein, one segment of the slot being lengthwise and one segment being transverse to the bar, each slot being located substantially opposite the end surface of a lock cylinder to receive the cam or stud of a lock cylinder therein, the lock bar being mounted for limited longitudinal movement,

an electrical circuit connecting the machine and a power source, said circuit having an operator switch and a lock bar switch, said lock bar switch being located adjacent the look bar whereby the switch remains open when the lock bar is in its initial position and the switch is closed when the lock bar is moved lengthwise into its operative position, and latch bar for each counter mounted one above the other in two or more rows for limited movement transverse to the lock bar, one end of each latch bar abutting the lock bar having a slot formed to receive the cam or stud of a lock cylinder therein, each latch bar being detachably in contact with the driving shaft of an individual counter to engage and disengage the counter shaft with an input shaft when said bar is moved lengthwise whereby after insertion of an operating key in a particular lock cylinder, the lock cylinder is rotated causing the cam or stud to move the lock bar upward, thereby preventing rotation of any other lock cylinder stud and closing the lock bar switch to complete the machine operating circuit, and said lock cylinder cam or stud moves the associated latch bar lengthwise to engage its individual counter shaft with an input shaft so that operation of the machine is recorded on said individual counter.

The totalizer as defined in claim 8 wherein the cam or stud of each lock cylinder is positioned at the junction of the two segments of the L-shaped slot when that lock cylinder is in its initial stud upon rotation position, said cam or pressing against the transverse side of one segment of the L-shaped slot to raise the lock bar and pressing against the side of the slot of the latch bar to move said bar bar.

lengthwise and transverse the lock 10. The device as defined in claim 8 wherein the means for rotating the input shaft when the machine is operated comprises a solenoid and a pawl and ratchet advance mechanism, said solenoid connected within the machine operating circuit comprising additionally the power source, the machine, the machine operating switch and the lock bar switch with the ratchet mounted on the input shaft so that when the circuit is completed by the lock bar closing the lock bar switch to permit operation of the machine and the machine operating switch closed to cycle the machine, the solenoid energizes causing the pawl to advance the ratchet thereby rotating the input shaft and advancing the connected counter one count.

11. The device as defined in claim 10, wherein the machine operating circuit comprises additionally a circuit breaking device causing the solenoid and its associated ratchet to be energized once for each cycle of the machine.

7 12. A totalizer comprising a housing; a plurality of counters within the housing readable through windows in the front of the housing; a shaft within the housing; slides within the housing operable by locks with different keys to bring drive normally-retracted wheels individual to the counters into engagement with corresponding drive wheels on the shaft; a restraining means automatically actuated upon actuation of one of the slides to prevent actuation of all of the remaining slides; a ratchet wheel affixed to said shaft; a pawl adapted to pick said ratchet; a solenoid for actuating the pawl; a normally open switch within the housing arranged to be closed upon actuation of the restraining means as aforesaid; an electric circuit in which a machine or apparatus of which the output is 35 to be recorded is interposed together with said solenoid and said switch; and a make and break switch actuated by the machine or apparatus to close the circuit for excitation of the solenoid and picking of the ratchet wheel by the pawl to rotate the aforesaid shaft.

13. A totalizer, in accordance with claim 12, wherein a manually-operable switch is interposed in the circuit for starting the machine or apparatus of which the output is to be recorded.

References Cited by the Examiner UNITED STATES PATENTS 1,048,041 12/1912 Cole 23s-91 1,439,904 12/1922 Lockwood 235-91 1,593,637 7/1926 Miller 235 91 1,616,028 2/1927 Cooney 235- 912 2,103,650 12/1937 Spaunburg 235-91 3,141,611 7/1964 Ambrozaitis 235-91 RICHARD B. WILKINSON, Primary Examiner. TERRY J. ANDERSON, Assistant Examiner.

Claims (1)

1. 8. A MULTIPLE TOTALIZER FOR RECORDING THE OPERATION OF A MACHINE BY ANY ONE OF A NUMBER OF OPERATORS ON HIS INDIVIDUAL COUNTER, SAID TOTALIZER COMPRISING A PLURALITY OF INDIVIDUAL COUNTERS MOUNTED IN TWO OR MORE ROWS ONE COUNTER ABOVE THE OTHER, EACH COUNTER HAVING A DRIVING SHAFT EXTENDING PARALLEL TO THE OTHER SHAFTS, AN INPUT SHAFT FOR EACH ROW OF COUNTERS, EXTENDING TRANSVERSE TO THE INDIVIDUAL COUNTER SHAFTS, A CROSS SHAFT CONNECTED TO EACH INPUT SHAFT BY BEVEL GEARS SO THAT EACH SHAFT AND THE CROSS SHAFTS REVOLVE IN UNISON, ONE OF SUCH SHAFTS BEING CONNECTED TO THE MACHINE WHOSE OPERATION IS TO BE RECORDED, SAID SHAFT BEING ROTATED WHEN THE MACHINE IS OPERATED. A PLURALITY OF LOCK CYLINDERS MOUNTED ONE CYLINDER ABOVE THE OTHER WITH THEIR AXES SUBSTANTIALLY PARALLEL IN TWO OR MORE ROWS, EACH LOCK CYLINDER BEING ASSOCIATED WITH A PARTICULAR COUNTER AND OPERATED BY ONLY A KEY OF A PARTICULAR CONFORMATION, EACH LOCK CYLINDER HAVING A CAM OR STUD EXTENDING AXIALLY FROM THE END SURFACE AT A LOCATION PROXIMATE THE PERIMETER OF SAID SURFACE, A LOCK BAR EXTENDING TRANSVERSE TO THE AXES OF THE LOCK CYLINDERS, SAID BAR HAVING TWO OR MORE ROWS OF SUBSTANTIALLY L-SHAPED SLOTS FORMED THEREIN, ONE SEGMENT OF THE SLOT BEING LENGTHWISE AND ONE SEGMENT BEING TRANSVERSE TO THE BAR, EACH SLOT BEING LOCATED SUBSTANTIALLY OPPOSITE THE END SURFACE OF A LOCK CYLINDER TO RECEIVE THE CAM OR STUD OF A LOCK CYLINDER THEREIN, THE LOCK BAR BEING MOUNTED FOR LIMITED LONGITUDINAL MOVEMENT, AN ELECTRICAL CIRCUIT CONNECTING THE MACHINE AND A POWER SOURCE, SAID CIRCUIT HAVING AN OPERATOR SWITCH AND A LOCK BAR SWITCH, SAID LOCK BAR SWITCH BEING LOCATED ADJACENT THE LOCK BAR WHEREBY THE SWITCH REMAINS OPEN WHEN THE LOCK BAR IS IN ITS INITIAL POSITION AND THE SWITCH IS CLOSED WHEN THE LOCK BAR IS MOVED LENGTHWISE INTO ITS OPERATIVE POSITION, AND A LATCH BAR FOR EACH COUNTER MOUNTED ONE ABOVE THE OTHER IN TWO OR MORE ROWS FOR LIMITED MOVEMENT TRANSVERSE TO THE LOCK BAR, ONE END OF EACH LATCH BAR ABUTTING THE LOCK BAR HAVING A SLOT FORMED TO RECEIVE THE CAM OR STUD OF A LOCK CYLINDER THEREIN, EACH LATCH BAR BEING DETACHABLY IN CONTACT WITH THE DRIVING SHAFT OF AN INDIVIDUAL COUNTER TO ENGAGE AND DISENGAGE THE COUNTER SHAFT WITH AN INPUT SHAFT WHEN SAID BAR IS MOVED LENGTHWISE WHEREBY AFTER INSERTION OF AN OPERATING KEY IN A PARTICULAR LOCK CYLINDER, THE LOCK CYLINDER IS ROTATED CAUSING THE CAM OR STUD TO MOVE THE LOCK BAR UPWARD, THEREBY PREVENTING ROTATION OF ANY OTHER LOCK CYLINDER STUD AND CLOSING THE LOCK BAR SWITCH TO COMPLETE THE MACHINE OPERATING CIRCUIT, AND SAID LOCK CYLINDER CAM OR STUD MOVES THE ASSOCIATED LATCH BAR LENGTHWISE TO ENGAGE ITS INDIVIDUAL COUNTER SHAFT WITH AN INPUT SHAFT SO THAT OPERATION OF THE MACHINE IS RECORDED ON SAID INDIVIDUAL COUNTER.

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