US401907A

US401907A - Half to h

Info

Publication number: US401907A
Authority: US
Publication date: 1889-04-23
Anticipated expiration: 1906-04-23

Description

(No Model.) s sheets-sheet 1. C. H. SAWYER.

WHEELBD SGRAPER. Y No. 401,907'. Patented Apr. 23, 1889.

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WHBELBD SGRAPBR.

No. 401,907. Paten'teaApr. 23, 1889x o no.

` after described, and

UNITED STA-TES PATENT OFFICE.

`CHARLES H. SAVYER, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF* ONE- HALF TO H. A. SMITH, OF SAME PLACE.

`wHEELi-:D SCRAPER'.

SPECIFICATION forming part of Letters Patent No. 401,907, dated April 2e, 1889.

Serial No. 277,491. (No model.)

To @ZZ whom t may concern,.-

. Be it known that l, CHARLES H. SAWYER, of Minneapolis, county of Hennepin, and State of Minnesota, have invented certain new and useful Improvements in Wheeled Scrapers or Self-Loading Carts, of which the following is a specification.

My invention relates to improvements in self-loading carts; and it consists, generally, in the construction and arrangement hereinparticularly pointed out in the claims.

In the drawings which form a part of this specification, Figure 1 is a longitudinal section of a cart or scraper embodying my improvement. Fig. 2 is a plan view of the same. Fig. 3 is a section showing the pan or shovel lowered in position 'for taking the load. Fig. 4 is a similar view showing the pan reversed. Fig. 5 is a similar view showing clearly the operation of the snatch-bar for raising the pan or shovel. Figs. 'and 7 are details.

In the drawings, 2 represents the pan or shovel, supported `upon the axle 3 by suitable hangers, 4, and provided with a bail, 5, by which the forward end of the pan may be supported or secured to the tongue. The axle 3 is provided with a crank at each end, upon which the wheels 6 are mounted. A lever, 8, with its front end forked or yoke-shaped, extends over the pan, and is secured to the axle at each of these cranks for the purpose of turning the said axle and raising or lowering1 the pan. l The ends of the lever 8 are preferably secured to disks or sand-bands 53, rig idly attached to the yaxle and forming stops or abutmeuts for the hubs of the wheels. These disks may be provided with blocks 55, interposed between them and the lever, in order to avoid the necessity of bending or form.- ing the lever to iit the bent portion of the axle, to which it would be fastened. I do not confine myself to this construction, however, as the lever may be secured to the bent portion of the` axle and operate equally well; but by the use of the blocks and the disks, as shown, I am enabled to construct a lever the ends of which are substantially straight, and in this way simplify the mechanism.

The tongue 7 is secured to the central portion of the axle 3, and at this point `is provided with a suitable casting, which embraces the axle and holds it in its proper position, and is preferably provided with a slot, 9, to allow a` certain amount of movement of the axle lengthwise of the tongue. A guide-bar, 10, may be located upon the tongue, and forms a recess, through which the bail 5 is allowed to slide. A stop, 13, pivoted in this guide, is arranged to fall behind the bail and hold it in its forward position. A lever, 12, is preferably pivoted upon. the tongue 7, and is connected by a rod, 14, to a clevis, 16, in which the draft-evener is held. This clevis is preferably supported by a hanger, 18, se'- cured upon the under side of the tongue, and by theoperation of the lever 12 the clevis is drawn back and slides longitudinally of said hanger. f

' The upper extremity of the lever 12 is preferably provided with a chain, 20. This chain passes over avroll'er or spool, 21, journaled in the forked portion'of the lever 8, thence downward over a sheave, 22, journaled in a suitable bracket, 24, on the pan or shovel 2, and from this point it is carried upward and securedto the end of the snatchbar 26, which slides in a suitable recess formed beneath the tongue, and is carried forward and arranged to be attached to an extra team in front of the tongue. The rear end of the snatch-bar 2G is preferably provided with a catch, 28, adapted to receive a latch, 30, on the lever 32.

The lever 32 swings upon a suitable pin in a lug or projection at the rear of the tongue 7, placed over the snatch bar and in line therewith. The said lever is preferably slotted and the latch 8O is pivoted in this slot.

VThe lever is preferably curved, as shown in Fig. 6, in order to bring the point at which the latch is pivoted below the pivotal point of the lever when the said latch is in engagement with the snatch-bar.

A roller, 34, may be secured to the end'casting of the tongue and bear upon the under side of the snatch bar at-this point. The snatch-bar passes out through the end casting of the tongue over the roller 84, and is brought in contact with the latch 30 on the lever 32. The latch and lever will be raised sufficiently to allow the end of the bar to pass, and the latch 30 will fall behind the catch 28 IOO 1. In a machine of the class described, the combination, with the cranked axle, ofthe pan or shovel 2, suspended from said axle, a bail, 5, securing the front of the pan to the tongue, and a suitable casting securing the axle to the tongue, and a slot, 9, in said casting, which receives the axle, allowing it to slide in said slot, in the manner and for the purpose substantially as described.

2, In afmachine ofthe class described, the combination, with the crank-axle, of a lever secured to said axle, a pan suspended below said. axle and connected with the tongue by .a

` suitable bail, a snatch-bar located' beneath Y combination, with the crank-axle, of Y a lever said tongue, Va lever, 12, pivoted upon the tongue' and connected with the draft-bar, and the chain 20, connecting the end of saidlever 12 and thesnatch-bar and passing over the lever 8- and connected with the end of the pan, substantially in the manner and for the purpose as described.

3. In a machine of the class described, the

operating said axle, a pan suspended below said axle and connected with the tongue by a suitable bail, a snatch-bar located beneath said tongue, a lever, 12, pivoted upon the tongue and connected with the draft-bar, a chain connecting the end of the lever 12 with the snatch-bar, and a block or stop secured to the chain and arranged to be brought in contact with the operating-lever and draw it downward and raise the pan, substantially as described. f

4. In a machine of the class described, the combination, with the tongue, of the snatchbar located beneath the said tongue, thek lever' 32, pivoted on the `said tongue, and a latch, 30, pivoted in said lever and engaging said snatch-bar, in the manner and vfor the purpose substantially as described.

5. In a machine ofthe class described, the combination, with the cranked axle, of a pan suspended from said axle, a lever for operating said axle, and a chain, 20, operating to draw the lever and pan together by the draft on the snatch-bar, substantially as described.

6. In a machine of the class described, the

- combination, with thedraft bar lor evener, of the lever 12, pivoted to the tongue and connected with the said evener, the snatch-bar sliding on said tongue, a locking device 1ocated on said tongue and engaging said snatchbar, and a chain connecting the end of the snatch-bar with the lever l2, in order that as the said lever is thrown forward the snatchbar Will be drawn back and brought in engagement with the locking device, in the manner and for the purpose substantially as described. Y V

In testimony whereof I have hereunto set my hand this 31st day of May, 1888.

.cHARL'Es H. sAWYER.

In presence of-' R. H. SANFORD, C. NACHTRIEB.