US1749158A - Automatic counter and stop device - Google Patents

Description

March 4, 1930. 5155 AUTOMATIC COUNTER AND STOP DEVICE Filed Nov. 24,1926 12 Sheets-Sheet 1' INVENTOR- WORNEW March 4, 1930. 5155 1,749,158

AUTOMATIC COUNTER AND 5T0]? DEVICE Filed Nov. 24. 1926 2 Sheets-She et 2 INVENTOR WMW ATTORNEY Patented Mar. .4, 1930 ,UNITED STATES PATENT OFFICE PAUL REISS, OF BROOKLYN, NEW YORK, ASSIGNOR TO VIKING TOOL AISI'ID MACHINE 00., ING.,-O'.F BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK AUTOMATIC COUNTER AND STOP DEVICE Application filed November 24, 1926. Serial No. 150,585.

My invention relates to automatic counters and stop devices intended to be installed on machines where a predetermined number of operations are to be performed and then the machine automatically stopped and it is my object to produce a device which can be set for any desired number of operations in advance and which will, at the end of the number set for, automatically stop the machine, giving, if desired, an advance warning signal that completion is at hand. The device is particularly adapted for attachment to machines for winding electric coils but may be used with machines for other purposes.

In the drawing I have shownone embodiment of my device in which Fig. 1 is a front view of the device; Fig. 2 a front view of the structure of Fig. 1 with the top dial removed; Fig. 3 a view of the frame and clutching and declutching mechanism used in mitiall setting the device; Fig. 4 a side view of t e structure of Fig. 3; Fig. 5 a view partly in cross section of the device; Fig. 6 a detail view of the spring stop; and Fig. 7 a detail view of the stop and alarm mechanism.

The device falls into three groups of mechanism. First, the clutching and declutching mechanism which enables the dials to be engaged with and disengaged from the driving means for the purpose of setting the counter Second, the alarm mechanism which indicates the end of the operation is being approached and the stop mechanism which automatically stops the machine to which the device is attached. Third,thecounting mechanism which may be set to give an alarm and stop the machine to which it is attached at the end of any predetermined number of operations. a

The clutching and declutching mechanism comprises a frame 1 in which a drive worm 2 is mounted. An arm 3 with a finger piece 4 is pivoted on the frame at 5 and has a pin 6 thereon. It also carries a pointer 7 at the upper end which can be swung up and out of the way in removing the'dials and a wire uide 8. It also carries a stud 9 in the center 'ne of the worm on which the counting dials are centered. A second arm 10 with a finger piece 11 is pivoted to the frame at 12 and has a notch 13 adapted to engage the pin 6 on the arm 3. A spring 14 connects the two arms 3 and 10 and serves to hold the pin and notch in engagement. When the finger piece 11 is pushed down, as shown in dotted lines in Fig. 3 to disengage the notch 13 and pin 6 the spring 14 will cause the arm 3 to swing into the position shown in dotted lines in the same figure until it hits the stop 15 on the frame 1 causing the stud 9 to rise and carrying with it the counting dials centered thereon and disengage them from the worm. A push on the finger piece 4 will cause the arm 3 to come down until the notch 13 engages the pin 6 carrying the stud 9 downward to enable the dials to re-engage the worm. By this mechanismthe counter proper may be disengaged from its drive for setting and re-engaged therewith for operation.

The alarm and stop mechanism is shown in detail in Fig. 7 and comprises a plate with a center hole 21 with a bearing sleeve 53 extending therefrom. This plate has a pointer 22 pro ecting from one edge and carries elec-' tric connections 23 and 24, a plug 25 being provided to carry the wires and make connection, the wire being passed out through the guide 8. The plate carries two dogs 26 and 27 pivoted thereon. The dog 26 has a spring 28 extending from it to the connection 24 with a contact point 29 thereon, while the other connection 23 has a contact point 30 thereon. The spring 28 normally holds the contact open but on swinging the dog 26 the contacts are closed and current to actuate the stop on the machine to which the counter is attached will flow. The other dog 27 has a spring hammer 31 adapted to ring a bell 32 asan alarm warning that the machine is about to stop. 1

The counting mechanism comprises two dials and 41. The upper dial 41 is cut out at 42 so that a portion of the lower dial 40 is exposed and has a pointer 43in the lower edge of the opening. Directly oppo site the pointer 43 is a notched pin 44 slidable through the dial which is normally held up by a spring 45 and-which spring has an inwardly extending lip 46 at its ee end.

In the device shown in the drawing the dial 41 is graduated on the outer row clockwise from 0 to 100 and represents totals. The inner graduations are anti-clockwise from 0 to 100 and are used for initial setting. The pin 44 is at 0 while the pointer is at 50, which are common points on both scales. This dial 41 has 100 teeth on its out-er edge which engage the worm 2. This dial is used in setting the machine to count any desired number from 1 to 100.

The lower dial 40 has a circular groove 50 near its edge with a cut ring 51 revolvable therein. This cut ring has a vertical end at 52 and a bevelled end at 53. A clamp piece 54 with a pointer 55 thereon serves to lock the ring to the dial 40-at any desired point, the pointer 55 thereon being located opposite the open ends of the ring 51. In the device shown in the drawing this dial 40 is graduated clockwise from 0 to 9,900, each graduation representing 100 turns of the worm 2 as will be later explained. The dial 40 has 99 teeth, 47 on its edge which engage the worm 2.

The dials 40 and 41 revolve independently on the sleeve 53*, the alarm and stop mechanism being mounted on shaft 9 and the arm 3 and held against movement. This is accomplished b slipping the dials over the sleeve 53 an then slipping the alarm and stop mechanism, with the dials thereon, over the stud 9 and drawing down on the thumb nut 55 which engages the threaded end of the stud and locks the sleeve and sto mechanism Fig. 5, to the arm 3 while leaving the dials free to revolve. In this way the dials, when disengaged from the worm, may be freely revolved for setting and when engaged with the worm will be independently driven. By loosening the thumb nut 55 the pointer 22 may be moved to any desired position and then locked to the arm 3.

As an illustration of a use of the device I will describe its operation in conjunction with a coil winding machine in which a number of turns of wire are to be wound on a spool or mandrel. The worm is directly connected to the end of a shaft carrying the spool or mandrel (not shown) so that the worm revolves at the same speed as the shaft. The finger piece 11 is pushed to release the arm 3 and carry the dials out of engagement with the worm. If any number of turns between 1 and 100 are to be wound the alarm and stop mechanism are removed and the upper dial 41 lifted off. The cut ring 51 is moved until the pointer 55 is at 0 on the scale when the ring and the dial 40 will revolve as a unit. The dial 40 is slipped on the sleeve over the dial 41. The dial 41 is then revolved until the 0 is in line with pointer 7, pointer 43 in line with 0 on 40 concealing 55". The finger piece 4 is then pushed to engage the teeth on the edges on the dials 40 and 41 with the worm 2. Should the act of setting move the 0 of dial 41 off the pointer 7 it may be returned to 0 by a few turns of crank C. The alarm and stop mechanism is then revolved until the pointer 22 alines with the figure representing the number of turns desired (say 73) on the inner line of graduations on 41 when the clamp nut 55 is set down to clamp the alarm and stop device to the arm 3 and hold it against movement.

The end of the wire to be wound is then attached to the spool or mandrel and the machine started, the dials will revolve until the pin 44, which is shown, due to the lip 46 on the spring 45 being in the cut 52 in the ring 51, strikes the dog 27 when the bell will ring and a few turns later and at the desired number of turns (73) the dog 26 will strike the pin closing the contact and allowing current to flow to actuate the machine stopping means (not shown).

To reset the device to wind the next coil the dials are disengaged from the worm and returned to 0 with respect to the pointers 7 and 43, reengaged with the worm when the device will run until the desired number of turns have been wound when it will first sound the alarm and then stop the coil winding machine. As a check to show that the desired number of turns have been actually wound the pointer 7 will be opposite the number on the outer scale of graduations on the dial 41 at the end of the operation.

If it is desired to wind a number of turns in excess of 100 (say 9473) the cut ring 51 is loosened and the pointer 55 set opposite the 9400 graduation on the dial 40 and there locked. The dial 41 is revolved until the 0 is opposite the pointer 7 and 0 on the lower dial 40 until in line with the pointer 43. The dials and worm are engaged as before. The pointer 22 on the alarm and stop mechanism is set opposite the 73 on the inner line of graduations on the dial 41 and clamped in place by the thumb nut 55, and the machine to be controlled started. The pin 44 will be out, due to the lip 46 on the spring 45 riding the ring so that the notch cut out in pin 44 is in line with the travel of the dogs 26 and 27. At the end of one hundred revolutions the dogs 26 and 27 will have passed through the notch in the pin 44 but the dial 40 will have gained one tooth on the dial 41 since it has one less tooth than the dial 41. This passing action will recur until the 9400th turn of the worm when the pressing action of 45 will drop lip 46 into the cut 52 in the ring 51 and the notch in the pin 44 attached to 45 will drop below the path of travel of the dogs 26 and 27 ready to strike them on the next revo lution of 40 and 41. On the 73rd turn of the worm thereafter the dogs will strike the pin and sound the alarm and stop the machine. The inclined portion 53 of the cut or groove 52 in the ring 51 causes the lip 46 to ride out of the cut on each revolution of the dial 40 until the latter has gained the required distance on 40, when 46 is then dropped into the groove to stop further movement of the dials. As a check to show that the 9473 turns have been made the dial 40 will stop with the pointer 43 against the 9400 graduation in the dial 40 and the pointer 7 will be opposite the outer graduation 73 on the dial 41.

In like manner the device may be set for any desired number of turns and the operation repeated indefinitely by simply disengaging the dials from the worm and returning them to 0 and reengaging the worm.

If the inertia of the machine to which the device is attached is such that it is carried, say ten turns, after the stop mechanism operates the device is, set ten turns short on the dial 41 so that the desired number of turns will always be made by the time the machine stops.

Devices other than electric ones may be substituted as stop mechanisms and the alarm bell may be omitted and other alarms substituted therefor without departing from my invention. I

I claim 1. In a counting device, a pair of concentrically mounted independently rotatable graduated dials, a plurality of pointers associated with said dials, means for rotating said dials simultaneously at different speeds,

means for moving said dials into and out of engagement with said driving means, a circuit closer, and means carried by one of said dials to actuate said circuit closer.

2. In a counting device, a frame, a'pair of disks rotatably mounted on the frame and having teeth formed on their peripheral edges, one of the disks being provided with a greater number of teeth than the other of said disks, means common to said disks for driving the latter independently of each other, a slidable rin mounted on one of the disks and having a epression, a notched pin carried by the other of said disks and formed to be received in said depression, a circuit closer, and an adjustable dog mounted on the frame and having a portion disposed in the path of said pin whereby to actuate the circuit closer.

3.- In a countin device, a frame, driving means on said ame, an arm pivotally mounted on said frame, a second arm pivoted on said frame and formed to engage the first named arm to lock the latter against movement, a pair of independently rotatable dials concentrically mounted on the first named arm, vpointers associated with said dials, means carried by said dials for drivin the latter simultaneously and independent y of each other at different speeds upon engagement with the driving means, and means to disengage the last named means from the driving means.

4. In a counting device, a frame, a graduated dial rotatably mounted on said frame, a ring slidably secured to said dial having a depression formed therein, a second dial concentrically and rotatably mounted over the first named dial and ring, a spring member carried by the adjacent face of the last named dial and having a part formed to engage in said depression, a notched pin carried by said spring and projecting above the outer surface of. the second named dial, means common to each of said dials for driving the latter independently of each other, a pointer plate secured to the frame and disposed over the second named dial, means for adjustably locking said plate to the frame, a circuit closer, and a dog pivotally secured to said plate and having a portion thereof disposed in the path of the pin whereby to actuate said circuit closer.

5. In a counting device a frame, a pair of independently rotatable dials mounted on the frame, pointers associated with the dials, means for rotating said dials at different speeds, a plate secured to the frame and disposed over said dials, a dog on said plate, a pin on one of said dials arranged to engage the dog, a pair of spaced electric connections on said plate, a contact member formed on one of said connections, a spring extending between the dog and the other of said connections, a contact member formed on the spring and disposed spaced from the first named contact member, and means to cause engagement of the contact members to close the circuit upon movement of said dog.

6. In a counting device, a frame, a pivoted support eccentrically mounted on said frame, a pair of rotatable dials mounted on said support, means for driving said dials simultaneously and independently of each other at different speeds, and means forsimultaneously moving said dials out of engagement with said drivingmeans. 7. In a counting device, a frame, a movable support on said frame, a pair of rotatable dials carried by said support, means mounted in said frame for driving said dials simultaneously and independently of each other at different speeds, and spring means for moving the support and thereby disengaging both of said dials simultaneously from said drivmg means.

8. In a counting device, a frame, a movable arm eccentrically mounted on said frame, a pair of dials rotatably mounted on said arm, said dials being concentrically arranged relative to each other, means for driving said dials simultaneously and independently of each other at different speeds, locking means for the arm normally holding the dials in engagement with the driving means, and spring means for simultaneously disengaging the dials from the driving means upon move ment of the locking means to inoperative po- I sition.

9. In a counting device, a frame, an L- shaped member pivoted intermediate its ends to said frame, a pair of concentric rotatable dials eccentricall mounted on said member, a pointer pivote to one of the arms of said member and overlying said dials, a pin carried by and extending outwardly from the other of the arms of said member, means for driving the dials, a latching arm pivoted to 7 said frame and having a part formed to engage said pin for holding the dials in engagement with the driving means, and spring means connecting the L-shaped member and latching arm for moving the dials out of engagement with the driving means upon movement of the latching arm in one direction.

10. In a counting device, a frame, a pair of concentrically mounted and independently rotatable dials on said frame, a slidable member interposed between said dials, means for driving said dials simultaneously and at different speeds, a circuit closer, and means operable by said slidable member to actuate the circuit closer upon predetermined movement of the dials.

In testimony whereof I have afiixed my signature.

PAUL REISS.

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