US1165092A - Power-transmitting mechanism. - Google Patents

Description

W. GRUNOW, JR.

POWER TRANSMITTING MECHANISM.

APRLICATION FILED MAR. 2, 1915.

1,165,092, Patented Dec. 21, 1915.

WILLIAM GRUNOW, J11, OF NEW YORK, N. Y.

POWER-TRANSMITTING MECHANISM.

Specification of Letters Patent.

. Patented Dec. 21, 1915.

Application filed March 2, 1915. Serial No. 11,517.

To all whom it may concern Be it known that I, WILLIAM GRUNow, J r., a citizen of the United States, residing at New York city, in the Stateof New York, have invented certain new and useful Improvements in Power-Transmitting Mechanisms, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to new and useful improven'ients in power transmitting mechanisms, and more particularly to an intermittent feeding mechanism which is adapted to move a single element or member in one direction from one source of power and in another direction from another source of actuating power.

An object of the invention is to provide mechanism through which power is transmitted from twoindependent sources to a common element, which mechanism is so constructed that said element may be'm'oved in one direction intermittently from one source of power and in the other direction intermittently fromthe other source of power through the endwise movements of a worm sleeve.

A further object of the invention is to arlznge said operating mechanism for the worm sleeve so that when both sources of power are simultaneously actuated the movements imparted by said sources of power will be neutralized and no movement occurs in said element.

These and other objects will in part be obvious and will in part be hereinafter more fully described.

In the drawings, Figure 1 is a view partly in front elevation and partly in section, showing more or less diagrammatically one embodiment of the invention; Fig. 2 is a sectional view on the line 22 of Fig. 1; Fig. 3 is a sectional view on the line 33 of Fig. 1; Fig. 4 is a view partly in section, showing the carriage in end elevation and the work gear for operating the same; and Fig. 5 is a modification, showing a different form of operated element. Fig. 6 is a view of the under part of the carriage shown in Fig. 4, showing the. cam ribs for throwing and locking an imparted movement.

In carrying out the invention, I have provided an element whichis capable of being moved or fed inopposite directions. Said element may be in the form of a sliding carriage utilized for operating levers or utilized of power and is moved intermittently in the opposite direction through a train of mechanism actuated by a different source of power. These trains of mechanism are so constructed that if both sources of power are simultaneously operated no movement will be imparted to the carriage.

v The mechanical arrangement referred to above broadly and which will be hereinafter described is particularly adaptable to.auto matic recording signal systems when two cars, one at each end of a block, are simultaneously operating their respective controlling circuits, the entering car effecting an addative indication, while the car which is leaving the block is effecting a deduction from the same; It is equally adaptable to other mechanical contrivances, such as for recording and counting mechanisms or to the application of such machines which are to be controlled by a desired number of impulses or operations, first in one direction and then in the other.

Referring more in detail to the drawings, my invention consists of a sliding carriage 1, which is provided with one or more ribs 2 on the under face thereof having a camshaped terminating face 3. Cooperating with this rib is a lever 4,11aving a projecting nose 5, which is adapted to engage the rib, so that, if the carriage l is moved to the right from the position shown in Fig. 1, the right-hand end of the lever 4 will be depressed. Said carriage is also provided with a second rib 6, which terminates in a cam shoulder 7. Cooperating with this rib is a lever 8, which is similar in construction to the lever 4. When the carriage 1 is moved in the opposite direction the lever 8 is actuated. These ribs, as will be noted, not only raise the levers alternately, depending upon the movement of the carriage, but look said levers in their raised position.

In Fig. 5 of the drawings, 1 have shown the carriage 1 as having, a rack 9. which meshes with a gear wheel 10, carried by a shaft 11.- The movement of the carriage 1 to the right will turn the gear wheel 10 in a clockwise direction, while the movement of the carriage 1 to the'left, as viewed in this disk is formed with a groove and pins figure, will move the gear wheel ina counterclockwise direction.

The carriage 1 is suspended on a rotating shaft 12, which is mounted to rotate in suitable bearings 13 and 14. Said carriage 1 has upwardly projecting arms 15 and 16 which engage the shaft and between said armsis a worm sleeve 17 This worm sleeve 17 issplined to the shaft 12, so that said sleeve turns with the shaft but is free to move endwise thereon. The carriage 1 is freely suspendedon the shaft and is held from rotating therewith by a rib 18, which engages a groove in the rear face of the projecting arms 15 and 16. I

The shaft 12,"at the left-hand end thereof, carries a disk 19. As hereinafter shown, tlgli. (see Fig. 3) extend across said groove. In the present embodiment of the invention, I have shown an electro-magnet 22 as one source of power for moving the carriage Goiiperating with the electro-magnet 22 is an armature 23, which is pivoted at 24. Saidarmature, at its outer end, carries an arm 25 to which is pivoted a pawl 26. This pawl 26 is adapted to engage the pin 21 and rotate the shaft 12 intermittently each time the armature 23 is raised. A spring pawl 27 engages notches 28 in the disk 19 and prevents retrograde movement thereof. An arm 29 carried by the armature 2.3 also engages the pins 21 to prevent overthrow of the ratchet disk.- From the above, it will be apparent that, as the armature 23 is raised, the disk 19 will be given a quarter .turn and this will rotate the shaft one-quarter of a revolution.

Meshing with the worm sleeve 17 is a worm wheel 30. The worm wheel 30 is carried by a sleeve 31 mounted on a suitable. supporting shaft 32. Attached to the sleeve 31 is a ratchet wheel 33. The ratchet wheel 33 is turned intermittently by an electromagnet 34. Cooperating with the electromagnet 34 is an armature 35 which carries at its outer end an actuating pawl 36. This pawl is pivoted to the .armature and a spring 37 holds the same normally in engagement beyond its pivot and with the ratchet wheel.

When the armature 35 is raised, the said pawl will turn the ratchet wheel one step in a countenclockwise direction. The pawl 36 is extended carries a projecting nose 38 which engages between the teeth of the ratchet wheel when the armature 35 is in its lower position and this looks the ratchet wheel from movement in either direction. There is sufiicient lost motion so as to permit this nose to be moved free of the teeth before the ratchet wheel is turned by the pawl 36.

A bracket 39 is mounted on the frame of the apparatus and carries a pawl 40. This pawl is held by a suitable spring 41 in engagement with the ratchet wheel and prevents retrograde 42 is also mounted on said bracket and a spring 43 normally presses the pawl toward the ratchet wheel. This pawl is for preventing'overthrow of theratchet wheel." 42 is bent outwardly at 44, so as to be engaged by a pin 45 carried by the armature 35. When the armature is in its lower position, said pin engages the pawl and lifts. the same out of engagement with the ratchet wheel. As the armature rises, this pawl 42 is gradually released and engages the next tooth to prevent overthrow of the ratchet wheel.

The operation of my device is as follows: Let us suppose that the electro-magnet 34 is inor clock-wise movement of the same. Asecond pawl The tail end of the pawl active and the electro-magnet 22 is energized.

The ratchet wheel 33 is held from movement by the locking pawl which engages the same. An upward movement of the armature 23 under these conditions rotates the shaft 12 one step and this in turn rotates the worm sleeve. Inasmuch as the worm wheel is held from movement, the rotation of the worm sleeve will cause the carriage to move one step to the left, as viewed in Fig. 1. This movement of the carriage will raise the lever 8 and will have no influence on the lever 4, or this movement of the carriage will rotate the gear wheel 10 one step in a counterclock-wise direction. Let us suppose the electro-magnet ing deenergized and before the magnet 34 is energized. The second lifting of the armature 23 rotates the shaft 12 in the same direction which holds the lever 4 raised or will turn the wheel 10 another step in the same direction. Let us suppose again that the parts are in the position shown in the drawings, and the electro-magnet 22 is in-' of the ratchet wheel 33 will cause the worm wheel 30 to move the worm sleeve endwise on the shaft 12 which is now held from rota-- tion. This endwise movement of the worm sleeve carries the carriage along the shaft 12 to the right, as viewedin Fig. 1. The endwise movement of the carriage to the right will raise the lever 4 or will rotate the wheel 10 in a clock-wise direction. Let us suppose again multaneously energized, so that the , armatures 23 and 35 will besimultaneously raised. The lifting of the armature 23 rotates the shaft 12 in a direction soas to move the worm sleeve to the left, as viewed in Fig. 1.

that both the electro-magnets are s1- 22 is again actuated after betwo movements will be neutralized and there will be no endwise movement imparted to the worm sleeve or the carriage 1. z From the above description, it will be ap-' systems, in which case the lever 4 may control a permissive signal and the lever 8 a danger signal. The device may be so controlled that a car entering the block will move the carriage one step in one direction and set a danger signal at the opposite end of the block. Another car entering the block will have an addative efiect'upon the apparatus moving the carriage another step in the same direction and maintaining the signal in'said position. As the cars leave the block the carriage may be moved in the 0pposite direction, thus effecting a deduction from the step movements of the carriage and finally releasing the signals when the last car leaves the block. If a car leaves the block simultaneously with a car entering the block, both armatures would be actuated and there would be no effective action on the signals. In other words, the simultaneous additive effect and deduction should not affect the condition of the apparatus and this is accomplished by the mechanism above described as said simultaneous operations of the armatures have their movements neutralized and produce no effect. Then again the apparatus above described is particularly adapted for recording and counting machines where additions and deductions may be made.

It is obvious that the apparatus above described may be useful in connection with other devices and it is also obvious that minor changes may be made in the details of construction and arrangement of parts a without departing from the spirit of, the invention as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A power transmitting mechanism comprising two independent actuating members,

a movable element, and devices for imparting an intermittent'feed, movement to said element in one direction from. one actuating member, and an intermittent feed movement to said element in the other direction from said other actuating member, said devices includinga worm Wheel adapted to be intermittently rotated from one actuating member, a worm sleeve meshing with said worm wheel and adapted to be moved endwise thereby, said Worm sleeve being adapted to be rotated from said other actuating member,'and means for operating said element from the endwise movement of said sleeve. 2. A power transmitting mechanism comprising two independent actuating members, a movable element, and devices for imparting an intermittent feed movement to said element in one direction from one actuating member, and an intermittent feed movement to said element in the other direction from said other actuating member, said devices including a Worm sleeve adapted to be intermittently rotated from one actuating member, a worm sleeve meshing With said worm wheel and adapted to be moved endwise thereby, a shaft for. supporting said worm sleeve, said shaft being keyed to said sleeve, means for intermittentlyrotating said shaft from said other actuating member, and means for actuating said element through the endwise movement of said sleeve.

3. A power transmitting mechanism comprising two independent actuating members, a movable element, and devices for imparting an intermittent feed movement to said element in one direction from one actuating member, and an intermittent feed movement to said element in the other direction from said other actuating member, said devices including a worm sleeve adapted tobe intermittently rotated from one actuating memmeans for intermittently rotating said shaft from said other actuating member, a carriage mounted on said shaft and freely movable thereon, said carriage being moved endwise with said sleeve, and operating means mounted .on said carriage.

In testimony whereof, I afiix my signature, in the presence of two witnesses.

WILLIAM GRUNOW, JR.

Witnesses:

R. W. LIGKLEY, M. H. MOGRATH, Jr.

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