US1297156A - Mechanical movement. - Google Patents

Description

E. D. HARRIS, JR.

MECHANICAL MOVEMENT.

APPLICATION HLED JUNE 22,1918.

1,297, 156. Patented Mar. 11, 1919.

3 SHEETS-SHEET l.

awvawlioz W an I witnesses I v DJ QfVJZS (/7? E. D. HARRIS, in.

MECHANICAL MOVEMENT.

APPLICATIDN HLED JUNE 22. I9l8..

1,297,156. Patented Mar. 11,1919.

3 SHEE TSSHEET 2- E. D. HARRIS JR. MECHANICAL MOVEMENT.

v APPLICATION FILED IUNE 22. IQIB. 1,297,156.

Patented Mar. 11,1919.

E ENnzER n. HARRIS JR, 015 LANDER, WYOMING.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented Mar. 11, 1919.

Application filed June 22, 1918. Serial No. 241,340.

especially adapted to be, used upon a mowing machine for operating a cutting apparatusand dispensing with the disk and grist pin now generally employed for this purpose.

A further object of the invention is to provide a movement as stated which will effectually operate the cutting apparatus to cause the same to sever the grain or grass in an even and unlform manner w thout lost motion. y

A still further object of theinvention is to provide in a movement as stated means for reciprocating the bar which transmits the movement from a rotating shaft to the reciprocating cutting apparatus, the said means including features for positively starting the bar. during its reciprocatory movement and means for positively completing the reciprocatory movement after the initial or starting movement thereof.

With these objects in view the movement includes a guide frame for the bar. The head of the bar is provided with an opening which receives the rotating shaft. An angle member is mounted upon the shaft and one arm of the said member is longer than the other. Both arms of the said mem ber' carry friction rollers. The head of the bar is provided at its opposite side with inwardly disposed arm portions against which the longer end of the angularly disposed member is adapted to operate. The head of the bar is further provided with in. wardly disposed humps which are spaced from the said arm portions and upon which the shorter. end of the angle member is adapted to operate for the purpose of imparting the initial movement to the bar.

In the accompanying drawing Figure 1 is a plan view of the mechanical movement showing the positions of the parts when the bar is about to receive its initial movement.

Fig. 2 is a similar view showing the position of the bar when it has received its initial movement.

Fig. 3 is asimilar view showing the position of the parts when the bar has completed its forward stroke.

Fig. 4 is a similar view showing the positions of the parts after the bar has received the initial movement of its return stroke.

Fig. 5 is a similar view showing the positions of the parts when the bar is about to be returned to the position shown in Fig; 1.

Fig. 6 is a side view of a modified form of the device.

Fig. 7 is a similar view of a still further modified form of the device.

Fig. 8 is a similar view of a still further modified form of the device.

As illustrated in the accompanying drawing, the mechanical movement includes a guide frame 1 adapted to be mounted upon the frame of a mowing machine in a suitable manner. The frame 1 is provided with an opening 2. An actuating shaft 3 extends into the opening 2 and an angle member 4 is mounted upon the shaft 3. One arm of the angle member 4 is longer than the other arm and friction rollers 5 are carried at the ends of both arms of the angle member 4:.

A bar 6 is slidably mounted with relation to the frame 1 and is provided with an enlarged head 7 which is guided in the frame 1. The head 7 is provided with a central opening and the said head is provided at the opposite sides of the said opening with inwardly disposed arm portions 8. The said head 7 is furtherprovided at the opposite sides of its opening with inwardly disposed humps .9 which are spaced from the arm portions 8. One hump 9 is located in the vicinity of each arm portion 8. The shorter end portion of the angle member 1 is provided at its edge with a recess 10 which at times is adapted to receive the hump 9 of the head 7 as will be hereinafter explained.

The bar 6 is connected at its ends with the cutter bar of the cutting apparatus in a usual manner and the bar 6 is reciprocated as the shaft 3 rotates. v

Assuming that the parts are in the position as shown in Fig. 1 of the drawing, the bar 6 is about to be moved initially in its forward stroke. The roller which is carried at the longer end portion of the angle member a is about to leave the lower arm portion 8 of the head 7 and the roller 5 which is carried by the shorter end portion of the member 4 is about to engage the hump 9 at the upper portion of the head of the bar 6. Also the recess is about to receive the said hump. Consequently for an instant the bar 6 will remain at a state of rest but when the roller 5 which is carried by the shorter end portion of the member 4: engages the upper hump 9 the bar 6 is initially moved by the member 4 and is carried "upon its forward stroke while the longer arm portion of the member 4; is moving from the lower arm 8 to the upper arm 6. While the roller which is carried by the shorter end portion of the member 4tis ap preaching the upper hump 9 the said hump is received in the recess 10 consequenth when the roller does engage the hump it may move along the edge of the same whereby a gradual starting movement is lDlPtLli'QCl to I the bar 6. W hen the roller 5 which is carried by the longer portion of the member a encounters the upper arm portion 8 of the head 7 the bar 6 is carried forward in a positive manner and its forward stroke is completed.

When the shorter arm portion of the memher t is carried under the shaft 3 the lower arm portion 8 moves beyond the same and the roller which is carried by the shorter arm portion of the member f encounters the lower hump 9 of the head 7 and the operation above described is repeated upon the return stroke of the bar 6.

Therefore it will be seen that a mechanical movement of simple and durable structure is provided and that the same may be used to advantage upon harvesting and mowing machines for operating a reciprocating cutting apparatus from a rotating shaft.

In the form of the invention as illustrated in Fig. 6 of the drawing, a gear wheel 11 is mounted on the driving shaft 3 and meshes with a gear wheel 12 mounted on a shaft 13. The gear wneels l1 and 12 mesh with gear wheels 1% and 15 respectively. The wheels 14: and 15 carry at their centers arms t which are similar to the arms l hereinbefore described.

A rocker member 16 is pivotally mounted at a point between the gear wheels 14; and 15 and the upper edge portions of the said rocker member 16 are provided with arms 8 and humps 9. These arms and humps are similar in structure and arrangement to the arms and humps 8 and 9 hereinbefore described. Rods 17 are pivotally connected at their upper ends with the arms 8 and may be connected at their lower ends with any suitable device which is adapted to be operated.

It is apparent that rotary movement from the shaft 3 is transmitted by the wheels 11 and 12 to the wheels lat and 15 which in turn rotate the arms 4:. As the said arms rotate the rollers carried at the ends thereof encounter the arms 8 and humps 9' and con sequently the member 6 is rocked and the rods are moved longitudinally.

In the form of the invention as shown in Fig. 7 the general arrangement as shown and described in connection with the arrangement as shown in Fig. 6 is followed with the exception that an additional rocker member 16 is applied to the pivot upon which these rocker members swing, also additional rods 17 are provided.

In the form of the invention as shown in Fig. 8 a lever 20 is pivoted upon the frame 1 and the head 7 is provided with a slot 21 which receives a pin 22 carried at one end of the lever 20. Rods 23 are pivotally connected with the end portions of the lever 20. This form of the device operates in a manner similar to that described in connection with the arrangement as shown in Figs. 1 to 5 inclusive, the exception being that a modified form of arrangement is provided for transmitting the movement from the head 7 to the rods 23 which correspond with the bar 6 as shown in the preferred form of the device.

Having described the invention what is claimed is 1. A mechanical movement comprising a frame, a journaled shaft disposed transversely of the frame, a bar having a head guided in the frame, said head having an opening, the head being provided at the opposite sides of its opening with inwardly disposed arm portions and at opposite sides of its opening with inwardly disposed humps, the said humps being spaced from the arm portion, there being one hump lo cated in the vicinity of each arm portion, and an angle member mounted upon the snaft and having one long end portion and one short end portion, the short end portion adapted to operate upon the humps and the long end portion adapted to operate upon the arm portions of the head.

mechanical movement comprising a frame, a bar mounted for movement and having a head guided. in the frame, said head having an opening, the head being provided at the opposite sides of the opening with inwardly disposed arm portions, the head being provided at the opposite sides of the opening with inwardly disposed humps, the humps being spaced from the arm portions. there being one hump located in the vicinity of each arm portion, a journaled shaft disposed transversely with relation to the frame, an angle member mounted upon the shaft, the angle member being provided with one long arm portion and one short arm portion, the short arm portion being provided at its edge with a recess adapted to receive the humps.

3. A mechanical movement comprising a rocker member provided at its edge with spaced arms and humps, angle members journaled for rotation adjacent the rocker member, means for rotating the angle members, said angle members having relatively long and short arms, and means carried by the arms of the angle members for encountering the arms and humps of the rocker mem- 4. 'A mechanical movement comprising a frame, a head mounted for movement thereon and provided with an opening having at the opposite sides thereof inwardly disposed arms and humps, a shaft located in the opening of the head, an angle member carried by the shaft and having arms adapted to encounter the arms and humps of the head, said head having a slot, a lever fulcrumed upon the frame and a member carried by the lever and received in the slot of the head.

In testimony whereof I afiix my signature.

EBENEZER D. HARRIS, JR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

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