US1102106A - Mechanical movement. - Google Patents

Description

J. H. TALLMAN. MECHANICAL MOVEMENT.

APPLICATION FILED MAY 2, 1913.

1 102,106. Patented June 30, 19145 2 SHEETS-SHEET l.

Illl

COLUMBIA PLANOORAFII C0-.WA!H|NGTON. n. c.

J. H. TALLMAN. MECHANICAL MOVEMENT. APPLIUATION FILED MAY2, 1913.

Patented June 30, 1914.

2 SHEETS-SHEET 2.

COLUMBIA PLANOIJRAPH COWWAsmNO'rON. D C

UNITED 1 STATES a rEN'r OFFICE.

JAMES HERVEY TALLMAN, OF HAMILTON, ONTARIO, CANADA.

MECHANICAL MOVEMENT.

1 0 all whom it may concern Be it known that I, JAMES H. TALLMAN, of the city of Hamilton, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a specification.

My object is to devise means for imparting an oscillating rotary movement to a shaft for moving it and, during such movement moving the shaft endwise and thereafter returning it to its original position.

It is also my object to devise means for simultaneously oscillating a second shaft at right angles to the first.

I obtain my objects by means of the constructions hereinafter described and illustrated in the accompanying drawings, in which Figure 1 is a side elevation of my improved mechanical movement; Fig. 2 a plan view of the lower part of the same; Fig. 3 an enlarged plan view of part of the same; Fig. 41: a similar view with the parts in a differentposition; Fig. 5 an enlarged end elevation of the upper driven shaft, showing particularly the means for moving the same endwise.

In the drawings like numerals of reference indicate corresponding parts in the different figures.

1. is the frame of the apparatus suitably shaped to support the different parts. In this frame is mounted an axle or driving shaft 2 to which is connected the ground wheel 3.

One half 4 of a positive clutch is secured to the axle, while loose on the axle is a crank disk 5 to which is secured the other half 6 of the clutch. This crank disk has a grooved hub 7 formed on and connected therewith, with which the shifter lever 8 engages in the usual manner. This shifter lever is pivoted at one end and has a coil spring 9 connected thereto and to a stationary part, which coil spring tends to move the lever to release the clutch.

It is most convenient to arrange the device so that once the clutch is thrown in it stays in for one revolution of the crank disk. For this purpose I provide the anti-friction roller 10 adapted to engage the back of the disk 5 as shown in Fig. 2. A notch 11 is formed in the disk in which the roller normally lies, the clutch being released when Specification of Letters Patent.

Application filed May 2, 1913.

the parts are in this position. When the Patented June 30, 1914.

Serial No. 765,088.

shifter lever is moved to throw in the clutch the roller comes into a position back of the disk, and as the latter, of course, begins to revolve with the driving shaft the friction roller rotates on the back of the disk until the notch again comes under the roller, when the spring throws out the clutch, the roller entering the notch. This crank disk is provided with the crank arm 12, which by means of the connecting rod 13 actuatcs the rock arm 14: secured to the counter shaft 15 journaled on the frame. The connecting rod 13 is shown as bent. This, however, is not essential, as the rod is made of this form merely to suit the purposes of the devi-.-c in which I propose to use the movement. This counter-shaft has a second rock arm 16 secured thereto, which through the medium of the connecting rod 17 actuates the rock arm 18 on the driven shaft 19 parallel to the driving shaft. This driven shaft is mounted in suitable hearings on the frame so as to be capable of both an oscillating rotary and also a longitudinal sliding movement. It is evident from the above description that this driven shaft will be oscillated by therotation of the driving shaft, the rock arms being so proportioned as to produce this effect. I desire to move this driven shaft lon itudinally in one direction at the end of the oscillatory movement of the shaft in one direction, and to move it in the reverse direction at the end of the oscillatory move ment in the other direction. The longitudh na-l movement of the shaft in one direction is accomplished in the following manner. Projections .20, preferably anti-friction rollers, are formed on the shaft, as shown particularly in Figs. 1 and 5. These rollers, when the shaft is rotated in the direction of the arrow in Fig. 4; will ride up the inclined planes 21 which are formed on the ends of the members 22 pivoted at 23 on the frame of the machine. The portions of these members on which the inclined planes are formed are curved inwardly toward the shaft, so that when the shaft is rotated in the direc tion of the arrow in Fig. 5 the rollers 20 will pass under the members to re-assume the position in front of the inclined planes without any longitudinal.movement being imparted to the shaft.

The members 22 are yieldin 'ly pressed toward the shaft by means of the coil spring 24: which is preferably arranged on a bolt 25 secured to one of the members and passing through the other, the spring bearing against the second mentioned member and a nut on the bolt.

From the above description it will be seen that as the shaft is rotated in the direction indicated by the arrow in Fig. st it will be moved longitudinally in the direction toward the upper side of said figure.

To return the shaft to its original position I provide the following mechanism: The shaft 26 is journaled vertically and at its lower end has a rock arm 27 secured thereto. This rock arm, preferably by means of the pivoted link .28, is connected with the shifter lever 29 which is adapted to coiiprate with the grooved collar 30 on the movable half 31 of a clutch. The other half 32 of the clutch is fixed to the driving shaft. Coir nccted with the movable half of the clutch is the sprocket wheel i It is evident that by shifting the clutch the sprocket wheel may be driven as desired. This sprocket wheel is connected by a suitable sprocket chain with the sprocket wheel 34 fast on the cam. shaft This cam shaft has the cam 36 secured thereto.

On the vertical shaft 26 is secured a rock arm 37 preferably provided with an antifriction roller 38 or otherwise adapted to engage the cam. Another rock arm 39 is connected to the vertical shaft which, by means of the pivoted link 40, is connected with the shifter lever ll pivoted at one end on the frame of the machine and adapted in the usual manner to engage the grooved shifter collar &2 secured to the shaft 19.

It is evident from the constructions described that when the shaft is moved longitudinally, as previously described, that the vertical shaft 26 will be rocked and the clutch 31,, 32 thrown in. Immediately the cam shaft is started in rotation the cam thereupon engages the anti-friction roller 38 on the rock arm 37, and after a predetei:'- mined period of time rocks the vertical shaft 26 sufficiently far to again throw out the clutch stopping the movement of the cam. The rocking of the rock arm 37, it will be seen, also actuates the shifter lever 41. and moves the shaft 19 toward its original position If the whole of the movement of the shaft in either direction were dependent solely on the mechanism previously described, it is evident that the shaft might become stuck in an intermediate position, and it is desirable, therefore, to provide means which will snap the shaft quickly to its limit of movement in either direction after a certain portion of the movement has been effected by the means already described. For this purpose I pro vide the rock arm 43 secured to the vertical shaft 26. The end of this arm ispivotally connected with the slide rod 4 1, which is connected to part of the frame of the machine so as to be both slidable and rockable therein. Preferably the rod passes through a. journaled pin 45 so as to be freely slidable therein.

A coil spring 46 is slipped on the rod 44 and engages the pin 4:5 and. a collar on the rod. his spring is normally in a state of compression. It is evident that the action of the spring would tend to throw the rock arm to either side of a line intersecting the axes of the shaft 26 and the pin 45, and that if the pivotal connection between the rod 4% and the rock arm 4-3 is moved slightly to either side of the said line of centers that the spring will throw the rock arm in either direction and thus through connections already described move the shaft 19 to its limit of imwement in either direction.

To insure that the return movement of the shaft 19 to its initial position is not premature I prefer to provide on the cam shaft 35 the stop at opposite the highest part of the cam The rock arm 37 cannot, therefore, be moved to the position shown in Fig, 3 until. this stop has moved clear of the antifriction roller 38.

As the rollers 20 have a tendency to rock the members 22 outwardly as they rise up the inclined planes 21 I find it preferable to lock these members in position during the movement of the shaft due to the riding of the rollers up these inclined planes. For this purpose I provide the pins 48 and 52 slidable through a flange 19 on the adjacent bearing of the shaft. These pins are connected to a collar 50 slidable on the shaft 19,

The coil spring 51 connected to the flange and the collar tends to project the pins, as shown in Fig. a. The action of these pins is as follows: Normally the pins are projected, the pin l8 holding down the upper movable member 22, as shown, it being found suflicient to hold one of these members. The second pin 52 lies in the path of the rollers 20 as they rotate with the shaft. The result of this is that as a roller reaches the position shown in Fig. 5 it presses in the pin 52 and thus retracts the pin 48, so that the roller may lift the hinge member as it moves under the same.

For my purposes it is necessary to oscillate a second shaft in synchronism with the driven shaft 19. This second driven shaft 53 is at right angles to the driving shaft 2 and is driven by bevel gearing 54 from the counter-shaft 15. Rock arms 55 may be connected thereto for a purpose which is not pertinent to the present invention. The purpose of oscillating and reciprocating the driven shaft 19 is that at certain intervals I desire to give a movable shaft 56 a rocking movement in one direction. I show a por- -tion of this shaft in Figs. 3 and a, the shaft being shown as journaled in a roller 57 movable on the top of the frame of the machine.

The end 58 of this shaft is squared and a suitable socket 59 is formed inthe end of the driven shaft 19 to engage with this square end. The extended finger 60 is formed on the end of the driven shaft 19 to guide the socket on the end of the shaft 19 to the end of the shaft 58.

The operation of the device is as follows: When the driving shaft is thrown in clutch with the crank disk 5 both of the driven shafts 19 and 53 are oscillated. The initial position of the driven shaft 19 is as shown in Fig. The first result of the oscillation of the shaft 19, therefore, is to move it endwise and disengage it from the shaft 56, which is thus left free to be moved away. It will be noted, however that as soon as the shaft 1%) reaches its limit of longitudinal movement in disengaging it from the shaft 56 the clutch 31 32 is thrown in and the cam shaft begins at once to rotate. By the time the driven shaft 19, therefore, has reached its limit of rotary movement in the original direction the cam 36 has caused its return to its initial position ready to engage the shaft 56.

The rollers 20 are now beneath the movable members 22 and as the shaft 19 rocks back to its initial position the rollers pass under the ends of the pivoted members and resume again the position shown in Fig. 3.

It will be understood, of course, that as the finger 60 engages the end of the shaft 56 that the shaft 19 does not quite return to its original position longitudinally until the shaft 56 is in alinement with the socket 59. This movement while adapted for many purposes is particularly adapted for use in a machine for shocking grain which I have devised and which will form the subject matter of a separate application.

YVhat I claim as my invention is i. In a mechanical movement the combination of a driven shaft mounted for both rotary and longitudinal movement; a continuously driving shaft; means for oscil' lating said driven shaft actuated by the driving shaft; means whereby the rotary movement of the driven shaft in one direction effects its endwise movement; a cam; means for driving the cam from the driving shaft including a clutch; means whereby the aforesaid endwise movement of the driven shaft throws in the said clutch; and means whereby the cam moves the driven shaft back to its initial position and at the same time throws out the clutch.

2. In a mechanical movement the combination of a driven shaft mounted for both rotary and longitudinal movement; a con tinuously driving shaft; means for oscillating said driven shaft actuated by the driving shaft; means whereby the rotary movement of the driven shaft in one direction eflects its endwise movement; a cam; means for driving the cam from the driving shaft including a clutch; means whereby the aforesaid endwise movement of the driven shaft throws in the said clutch; means whereby the cam moves the driven shaft hack to its initial position and at the same time throws out the clutch; and spring means acting on either side of a dead center for snapping said shaft to its limit of motion in either direction.

3. In a mechanical movement the combination of a driven shaft mounted for both rotary and longitudinal movement; a continuously driving shaft; means for oscillating said driven shaft from the driving shaft, including a clutch means lending to throw the clutch out of gear, and means for holding the clutch in gear during one revolution of the driving shaft and then releasing it; means whereby the rotary movement of the driven shaft in our direction effects its endwise movement; a cam; means for driving the cam from the driving shaft including a clutch; means whereby the aforesaid endwise movement of the driven shaft throws in the said clutch; and means whereby the cam moves the driven shaft back to' its initial position and at the same time throws out the clutch.

4. In a mechanical movement the combination of a driven shaft mounted for both rotary and longitudinal movement; a con tinuously driving shaft; means for oscillating said driven shaft actuated by the driving shaft; means whereby the rotary movement of the driven shaft in one direction effects its endwise movement; a cam; means for driving the cam from the driving shaft including a clutch; a shifter lever; a shifter ring on the driven shaft suitably engaged by the lever; a vertical rock shaft; a rock arm thereon suitably connected with the shifter lever; a second rock arm on said ver tical shaft engageable by said cam; a third rock arm on said shaft; a shifter lever with which said third rock arm is operatively connected; and a shifter ring to which said shifter lever is operatively connected and which is adapted to shift said clutch.

5. In a mechanical movement the combination of a driven shaft mounted for both rotary and longitudinal movement; a continuously driving shaft; means for oscillating said driven shaft actuated by the driving shaft; means whereby the rotary movement of the driven shaft in one direction effects its endwise movement; a cam; means for driving the cam from the driving shaft including a clutch; a shifter lever; a shifter ring on the driven shaft suitably engaged by the lever; a vertical rock shaft; a rock arm thereon suitably connected with the shifter lever; a second rock arm on said vertical shaft engageable by said cam; a third rock arm on said shaft; a shifter lever with which said third rock arm is operatively connecttil ed; a shifter ring to which said shifter lever is operatively connected and which is adapted to shift said clutch; a fourth rock arm on said vertical shaft; a slide rod pivotally connected to said rock arm; a. part on which said rod is both slidable and rockable; and a coil. spring engaging said part and the rod tending to extend the latter.

6. In a mechanical movement the combination of a driven shaft mounted for both rotary and longitudinal movement; a continuously driving shaft parallel to the driven shaft; a countershaft parallel to the driven shaft; means whereby an oscillating rotary movement is imparted to the countershaft from the driving shaft; cranlt and pitman connections for oscillating the driven shaft froin the countershaft; means Wherehy the rotary movement of the driven shaft in one direction effects its endwise move ment; a cam 5 means for driving the cam from the driving shaft including a clutch; means whereby the aforesaid endwise movement of the driven shaft throws in the said clutch; and means whereby the cam moves the driven shaft back to its initial position and at the same time throws out the clutch.

7. in a mechanical. movement the combination of a driven shaft mounted for both rotary and longitudinal movement; a continuously driving shaft; means for oscillating said driven shaft actuated by the driving shaft; means whereby the rotary movement of the driven shaft in one direction effects its endwise movement; means actuated from the driving shaft and norm ally inoperative for returning the driven shaft to its initial position; means whereby the aforesaid endwise movement of the driven shaft renders said returning means oper ative; and means whereby the said returning means are again rendered inoperative when the driven shaft is returned to its initial position.

8. In a mechanical movement the combi nation of a driven shaft mounted for both rotary and longitudinal movement; a continuously driving shaft; a movable shaft adapted to be moved into and out of alinement with the driven shaft; means actuated by the driving shaft for oscillating the driven shaft; means for automatically reciprocating said driven shaft; and means whereby it effects a driving connection with the movable shaft when moved endwise into coo iierative connection therewlth.

' Hamilton, this 21st day of April. 1913.

JAMES HERVEY TALLMAN.

Signed in the presence of A. H. TALLMAN, G. T. GoRDoN.

Copies of this patent may be obtained for five cents each, by addressing; the Commissioner of Eatents,

Washington, ID, 0.

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