US841556A - Shock-loader. - Google Patents

Description

PATBNTED JAN. 15, 1907.w

P. MART. SHOCK LOADER. AIPLIUATIQN FILED NIA13..8.19( )6.`

3 SHEETS-SHEET 2.

@www-hoz @mg RS 4 WMS/neme@ nl: Nmmls PETERS ca., wAsmNcTUN. n. c. I

PATBNTED JAN. 1 5, 1907.

F. MART.

SHOCK LOADER.

APPLIoAT-ION FILED 1111111.11. 190e.

' a SHEETS-s111131' s.

Smau/bo@ @MRW/@aow @Rouw/1go -ms NoRRls rsRs co., wAsmmrroH, n. c.

rrNiTnn sTATEs PATENT orrion.

VFRANK MART, OF WAKONDA, SOUTH DAKOTA.

SHOCK-LOADER.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed March 8, 1906. Serial No, 304,907.

' clear, and exact description of the invention,

such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in shock-loaders designed for gathering shocks from the ground and conveying them to a wagon or other receptacle at the rear of the machine.

The object of the invention is to provide a machine of this character which will be of simple and practical construction and which will efl'ect a great saving in time and labor.

llfith the above and other objects in view the invention consists of certain novel features of construction, combination, and arrangement of parts, as will b e hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a top plan view of myimproved shock-loader. Fig. 2 is a side elevation of the same, showing in full and dotted lines the two positions of the lifting-fork. Fig. 3 is a vertical transverse sectional view taken on the plane indicated by the line 3 3 in Fig. 1, and Figs. 4 and 5 are detail sectional views taken on the planes indicated by the lines 4 4 and 5 5 in` F ig. 1.

Referring to the drawings by numeral, l denotes the frame or body of the machine, which, as shown, consists of longitudinal side beams or sills 2, connected by central and rear crossed beams 3 4 and having projecting from their tops the uprights 5, which are connected together by a top cross-beam 6 and to the side beams 2 by diagonal braces 7. The frame or body 1 is supported upon front caster-wheels 8 9 and the rear drive-wheels 10 11, which latter rotate freely upon the outer ends of a rear shaftor axle provided at the rear ends of the side` lbeams 2. The caster-wheels 8 9 have theirvertical spindles 13 14 mounted to rotate freely in vertical bearings provided in the forward. projecting ends of the side beams 2, and upon the upwardlyprojecting wheel 8 at the end of the spindle 13 is provided a crank-arm 15, which is connected by a link or rod 19 to an operatinglever 20. The lever 20 is pivotally mounted at 21 upon the adjacent side beam 2, so that its upper end is in convenient reach of the operator who sits upon a seat 22, supported, as shown at 23, from said side beams. It will be seen that by shifting the lever 20 the wheel 8 may be turn ed angularly for the purpose of steering the machine. The lever 2O carries a fixed pawl which normally engages a rack 24, provided upon the side beam 2, and is thus held in an adjusted position. The machine is drawn forwardly through the held from which the shocks are gathered by draftanimals hitched to whiifletrees 26, connected to laterally-projecting brackets or beams 27, provided upon the outer sides of the side beams 2, as clearly shown in Fig. 1 of the drawings. l

Mounted in the front of the frame or body 1 is a vertically-swinging fork 30, which lifts the shocks from the ground and throws them rearwardly upon an endless conveyer or elevator 31, which is mounted in the central and rear part of the body and is adapted to discharge the shocks into a wagon or other suitable receptacle 32, mounted upon or connected to the rear ofthe machine. As shown, the shocks are discharged from the conveyer 31 into a wagon 32, which is connected by a chain or other flexible connection 33 to the center of the rear cross-beam 4, which has its tongue 34 engaged with a guide 35, provided in the rear portion of the frame. As shown, this guide consists of a notched or recessed block supported upon diagonal brace-rods 36.

The lifting-fork 30 comprises a verticallyswinging frame consisting of two side bars or arms 38, having their forward ends tapered, as shown, and their rear ends connected by a cross-bar 39 and strengthened by diagonal members 40. Upon the cross-bar 39 is provided the shaft or pivot 41 of the fork, which shaft has its projecting ends mounted in suitable bearings 42, provided upon the under side beams 2, adjacent to the central crossbar 3 of theframe. Between the side bars or arms 38 of the fork-frame 30 is pivotally mounted the fork proper, 43, which consists of a transverse'bar 44, from which. project spaced teeth-tines 45. The bar 44 is adjustably pivoted between the arms 38 by passing its centrally-extending pivot-shaft 46 through alining openings 47, formed in said arms, as shown. The tines 45 of the fork normally rest upon a `cross-rod or brace 48, between the arms 38, and their upward IOC IIO

means of a cord or other flexible connection 49, provided between the rod 48 and one of the tines 45. This stop-cord 49 prevents the tines from swinging over the center of its pivot, so that they will drop by gravity when the fork-frame 3() is in its lowered position. (Shown in full lines in Fig. 2.)

A coil-spring 50 has one end secured to the beam 3 of the frame 1 and its other end connected to the cross-bar 39 and the fork-frame l37 at a point in advance of its pivot-shaft 41. When the fork-frame is raised, it swings rear wardly past a vestical position until it assumes a slightly rearwardly inclined position, and as soon as the load is discharged from the fork onto the conveyer the spring 50 acts to start the fork-frame forwardly and swings it over the dead-center, so that the fork-frame will be lowered during the rotation of the crank-shaft hereinafter described.

The downward movement of the forkframe is limited by and it is elevated by an operating mechanism comprising a transversely-extendin'g crankshaft 51, mounted in bearings 52 upon-the top of the side beams 2, in rear of the uprights 5. This shaft 51 is formed adjacent to its ends and within the frame 1 with similarly-extending cranks 53, which are connected by flexible connections 54 to the fork-frame 30, so that the latter Will be raised and lowered as said shaft is rotated. Each of the connections 30 preferably consists of cord, chain, cable, or the like 55, to the ends of which are connected links 56 57. The links 57 at the rear are connected to the cranks 53, and the links 56 at the front are engaged with eyes 58, which are adjustably mounted in rows of openings 59, formed in the upper faces of the arms 38 of the fork-frame. The flexible portions 0f the connections 54 extend over grooved guide wheels or pulleys 60, journaled in bracke ets upon the inner faces of the uprights 5, adjacent to their upper ends.

The crank-shaft 51 is preferably driven from the rear drive and supporting wheel 10, and its operation is controlled by a lever 61, mounted upon the side beam 2 within convenient reach of the foot of the operator upon the seat 22. This operating mechanism comprises a sprocket-wheel 62, secured to the wheel 11 and connected by a sprocket-chain 63 to a sprocket-wheel 64, which is loosely mounted upon the adjacent outer end of the shaft 52 and is adapted to be connected to rotate therewith by a pawland-ratchet device. This device comprises a ratchet-wheel 65, secured upon the inner face of the sprocket 64 and adjacent to a plate or disk 66, which is keyed or otherwise secured to the shaft 51. Upon the disk 66 is pivoted, as at 67, a pawl or dog 68, which is actuated by a coiled spring 69, provided between said disk and said dog, The dog 68 is supported and held out of engagement with the teeth of the ratchet by the upwardlyextending end 70 of the leverl 61. The latter is pivoted intermediate its ends, as at 71,v

upon the side beam 2 and has its forwardlyprojecting end formed with a foot-piece 72. The latter swings vertically in a guide 73 upon the side beam 2 and is forced upwardly by a coiled spring 74, so that the end 70 of the lever 61 projects normally in the path of the outer end of the dog 68. As shown, the spring 74 is in the form of a loop or bail, which has one of its ends secured to the guide 73 and its other end projecting through the same and engaged with the foot-piece of the trip-lever 61.

It will be seen that as the machine is drawn forwardly the sprocket-wheel 64 and its attached ratchet 65 will be rotated; but

the motion will not be imparted to the shaft 52, because of the engagement of the dog 68 with the end 70 ofthe trip-lever 61 but when i the tines 45 of the fork engage the shock and the operator depresses the foot-piece of the lever 61 the end 7() of the latter will release the dog 68, so that its spring 69 will swing it into engagement with the teeth of the ratchet 65, and thereby lock the latter to the shaft 51, so that said shaft will be rotated. As soon as the dog 68 has been released the operator removes his foot from the lever 61, so that the end 70 of the latter springs back into the path of the dog and engages it after it makes one revolution. The shaft 51 is thus permitted to rotate once, and in rotating its cranks draw upon the flexible connections 54 and swing the fork 30 to the dottedline position (shown in Fig. 2) to elevate the shock engaged by the tines 45 over upon the conveyer or elevator 31.

The conveyer 31 may be of any desired form and construction and is mounted in a vertically-adjustable frame or support 75, which extends upwardly and rearwardly and consists of a bottom and two sides and a lower end. The frame 75 has its lower front end pivotally mounted on a transverse shaft 76, which has its bearings in the side beams 2 of the frame 1. A transverse brace-rod 175 connects said beams 2, and blocks or castings 77, which are secured to the sides of the conveyer-frame 7 5, are provided in their depending ends 176 with slots 177, through which the brace-rod 175 extends, said slots affording clearance for the said brace-rod and permitting the said arms to move angularly with the conveyer-frame when the rear end of the latter is raised and lowered. The upper and rear end of the frame 75 maybe swung or adjusted vertically to raise and lower the discharge end of the conveyer by rotating a crank 79 upon a transverse shaft l8O, which is mounted in the upper portions of the uprights 5 beneath the top beam 6. The shaft 80 serves as a windlass and has connected to it the ends of a cord, cable, or

IIO

other fiexible connection 81, which passes through openings in the projecting ends of a cross-bar S2, which is provided upon the bottom of the frame 75, as shown. By rotating the shaft S0 the cord or cable 8l may be wound or unwound to adjust the conveyer-frame 75, as desired. In order to hold the conveyor-frame in an adjusted position, a ratchet S3 is secured upon one of the ends of the shaft 8O andis engaged by a spring-actuated pawl 84, provided upon one of the uprights 5, as shown.

The conveyer, as shown, consists of sprocket chains or belts '85, passed over sprocket wheels cr rollers 86 87, provided, respectively, upon the shaft 76, and a shaft 88, mounted in the upper or outer end of the frame 75. These chains or belts are connected by transverse slats, as shown, so that the shocks deposited upon the bottom of the frame 5, between its sides, will be elevated and discharged out of its open and rear end.

The conveyer is driven by providing upon one of the outer ends of the shaft 76 a gear S9, which meshes with a gear 90 upon a stubshaft 91, provided upon one of the side beams 2. Connected to the gear 90 is a sprocketwheel 92, which is connected by a sprocketchain 93 to a sprocket-wheel 94, attached to a rear drive-wheel l l. It will be seen that as the machine is drawn forwardly the gear just described will rotate the shaft 76, and hence the elevator or conveyer 3l.

The operation of the invention is as follows: The machine is drawn forwardly through a field containing shocks of hay, corn, wheat, or any other grain or vegetable growth, and the operator upon the seat 22 steers the same by means of the lever 20, so that the lifting-fork 3() will engage the bottom of the shocks. As soon as the fork engages the shock the foot-piece of the lever 61 is depressed to release the dog 68, so that the crank-shaft 51 will be once rotated and the fork will be hence swung upwardly to its dotted-line position (shown in Fig. 2) to throw the shock rearwardly upon the lower portion of the endless conveyer 31, which latter conducts it upwardly and rearwardly and discharges it into the wagon 32 or any other suitable receptacle. ter the fork has thrown a shock upon the conveyer it drops to its normal or lowered position by gravity, since the crank-shaft 5l will make but one revolution, as previously explained.

It will be understood that when the machine is in operation the crank-shaft 51 rotates in only one direction and that said crank-shaft during a portion of its rotation serves to raise the fork-frame and during the other portion of its elevation serves to lower the fork-frame to the ground to maintain control of the fork-frame while it is being lowered, so that the fork-frame is prevented from dropping violently to the ground and stress and wear, which would be incident to such dropping of the fork-frame, are obviated.

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

l. In ashock-loading machine, the combination of a body or frame, a shock-lifting fork disposed longitudinally with respect to the body or frame, projecting forwardly therefrom and having its rear end pivotally connected thereto, a crank-shaft, means to rotate said crank-shaft in one direction, connections between a crank of said shaft and said fork to cause said crank-shaft at each rotation thereof to raise and lower said fork, and a lconveyer disposed longitudinally with reference to the body or frame and having its front end in rear of the fork, substantially as described.

2. In a shock-loading machine, the combination of a body or frame, a shock-lifting fork disposed longitudinally with reference thereto, projecting forwardly therefrom and having its rear ,end pivotally connected 'thereto a crank-shaft -means to rotate said crank-shaft in one direction,r connections between a crank of said shaft and said fork to cause said crank-shaft at each rotation thereof to raise and lower said fork, a conveyer disposed longitudinally with reference to the body or frame, having its front end disposed in rear of the fork and pivotally connected to the body or frame, and means to raise and lower the rear end of said conveyer, substantially as described.

3. In a machine of the character described, the combination of a body or frame, a conveyer thereon, a shock-lifting fork pivotally mounted at its inner end to swing upwardly and rearwardly, a crank-shaft, means to rotate said crank-shaft in one direction and a connection between the crank of said shaft and said fork.

4. In a machine of the character described, the combination of a body or frame, a conveyer thereon, a shock-lifting fork pivotally mounted at its inner end to swing upwardly and rearwardly, a crank-shaft, aconnection between the crank of said shaft and said fork, means for rotating said crank-shaft in one direction, and means for throwing said rotating means into and out of operation.

5. In a machine of the character described, the combination of a body or frame, a conveyer thereon, a shock-lifting fork pivotally mounted at its inner end to swing upwardly and rearwardly, an operating means for said fork comprising a crank-shaft, a drivingwheel upon said shaft, a pawl-and-ratchet device between said shaft and said drivingwheel, and a lever for controlling said pawland-ratchet device.

6. In a machine of the character described, the combination of a wheel supported LOO TIO

frame, a swinging` fork, a crank-shaft, connecting elements between the crank and the fork for raising and lowering said fork, a drive-wheel loosely mounted upon said shaft, driving connections between said Wheel and one of the supporting-wheels of said frame, a ratchet-wheel attached to said drive-wheel, a plate or disk secured upon said shaft, a spring-actuated dog pivoted upon said plate and adapted to engage said ratchet-wheel, and a spring-actuated trip-lever to coact with said dog, substantially as described.

7. In a machine of the character described, the combination of a frame or body, a conveyer thereon, an upwardly and rearwardly swinging fork pivotally mounted in the front portion of saidgframe, a double crankshaft, means to rotate said crank-shaft in one direction, guides upon said frame, and flexible connections engaged with said guides and secured to the cranks of said shafts and to said fork.

8. In a machine of the character described, .the combination of a frame or body, a conveyer thereon, an upwardly and rearwardly swinging fork pivotally mounted in the front portion of said frame, a double crank` shaft, means to rotate said crank-shaft in one direction, guides upon said frame, ilexible connections engaged. with said guides and secured to the cranks of said shafts and to said fork, means for rotating said crankshaft to elevate said fork, and a spring for starting said fork to its lowered position.

9. In a shock-loader, the combination of a main frame, a pivotally-inounted fork, a

crank-shaft, means to rotate said crankshaft, and connections between a crank of said shaft and said fork to cause the latter to be raised and lowered by the crank-shaft while the latter is making one revolution in one direction.

10` In "a shock-loader, the combination of a main frame, a pivotally-niounted fork, a crank-shaft, means to rotate said crankshaft, connections between a crank of said shaft and said fork to cause the latter to be raised and lowered by the crank-shaft while the latter is making one revolution in one direction, means to rotate said crankshaft and means to prevent the rotation thereof without discontinuing the action of the rotating means.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

FRANK MART. Witnesses:

M. J. CHANEY, SAM. JAcoBsoN.

Images