US325934A - Road-scraper - Google Patents

Description

(No Model.) 2 sheets-sneer 1.

W. E. CHMOBS.

ROAD .SCRAPBR.

No. 325,934. Patented sept. 8, 1885.

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UNITED STATEs'fPATI-JNT OFFICE.

WILLIAM E. JACOBS, OF COLUMBUS, OHIO.

RoAD-sCRAPER.

SPECIFICATION forming part of Letters Patent No. 325,934, dated `September 8, 1885.1 l Application filed June 26, 1885. (No model.)

.To all whom it may concern:

Be it known that I, WILLIAM E. IAcoBs, citizen ot' the United States, residing at Col lumbus, in thecounty ot' Franklin and State of Ohio, have invented certain new and useful Improvements in Wheeled Road Scrapers or Excavators; and I do hereby declare the following to be a full, 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 consists in a scraper' comprising wheels, a crank-axle, hangers, lever-frame, latching device, tongue and bail, and connecting-links between the lever-frame and crankaxle, thesaid parts beingconstructed,arranged, and combined in a novel and useful manner, as will be hereinafter described and claimed.

The leading object of my invention is to easily raise the bowl. This I accomplish by forcing back the lever-frame, and thereby holding the wheels back while the team is pulling t-he bowl forward, so as to turn the cranked portion of the axle forward, causing itto raise the bowl.

In the accompanying drawings, Figure 1 is a side elevation ot' the scraper as in operation of gathering a load;V Fig. 2, a similar elevation as it appears raised and transporting its load; Fig. 3, a similar elevation as it apt pears in the act of dumping its load; and Fig.

4 is a front elevation ofthe scraper as shown in Fig. l.

A in the accompanying drawings' represents the bowl of the scraper, provided with handles a, stop-catch a, and side hangers, A', extending up from its sides above the top of the bowl.

B is a cranked axlehungloosely in the hangers A', and having on the journal ends b of its cranked arms b wheels O, which revolve freely. Y

D D designate the leverframe, provided with a sliding spring-acted latch-bolt, d, and

E E designate the bail and tongue.

The front ends of the lever-frame and the rear ends of the bail E of tongue E are pivoted to the sides of the bowl,near the frontand bottom thereof, by bolts eonwhich the lever-frame D D and bail and tongue E E have vibratory movements in-common.

The crank-arms b of the axle are coupled to the lever-frame by links FF, pivoted by bolts to said frame, and tted by eyes upon the j ournal ends b of said axle, and having free movements thereon, as Well as on the pivot-bolts f,

by which they are con nected to the lever-frame.

From the aforegoing description and accompanying drawings it will be seen that by the arrangement, as shown, of the lever-frame D D',

loaded scraper from the position shown in Fig. 1 to the position shown in Fig. 2, and that this i purchase or leverage continues to increase until the bowl is raised to its highest point-say about eight inches above the ground-and the nearer the bowl gets to its highest point the greater will be the assistance ot' the team, pulling against the cranked part of the axle, in raising the load.

e In operating with this scraper the leverframe D D' is` unlatched from the condition shown in Fig. 2, and the parts adjusted as in Fig. 1, which is the condition for gathering a load. To lift the scraper-bowl to the position shown in Fig. 2 the operator holds backthe wheels C C by pulling back upon the leverframe while the team is pulling forward upon the bowl A and the cranked axle B. This combined act-ion of theteam and operator insures the elevation of the bowl, and nearly the whole labor is performed by the team. This is due to the wheels taking a fair hold upon the ground and the axle turning inthe wheels, while its cranked Varms are turned forward from a nearly horizontalto a verticaLposition and latched by the devices a d. When the load is to be dumped, the operator turns the bowl from the position shown in Fig. 1 to that shown in Fig. 3, or to any other position usual in dumping wheeled Scrapers, and7 if 'necessary, `causes the team to movethe scraper forward or backward.

I am aware that there are a number of patented wheeled scrapers somewhat resembling in general construction mine, some of which work much easier than others. Those in which the wheels are pulledor held back whilelift- Aingthe load, operate much the easiest; also,

those having the hangers rigid to the bowl rise easier,because the team helps to raise by pulling forward the cranked part of the axle. I find that by pivoting the lever-frame,with the IOO bail of the tongue, to the forward lower part Y stood from the drawings.

of the bowl and connecting the lever-frame to the axle-arm by the links F F, I secure in creased power over any other plan of like simplicity and strength as mine, as the team, by pulling the scraper while lifting the load, is really made to lift the boWl-that is,when the leverY frame is operated by hand and the wheels are held baclgwhich is easily done, especially if the wheels are made small and the ground upon which they are made to travel while filling and lifting is rough enough to give them a proper hold or frictional contact.

During the operations of the scraper its attached tongue at its forward end is prevented from descending too low by stoppins a3, and

the hangers A are kept from moving too far forward by the stop-pins a2, as will be under- VVhile the pins c3 operate as described, they do not prevent the bowl from moving down from the position shown in Fig. 2 to the position shown in Fig.

l; nor do the pins c interfereowith the forward movement of the crank-arms of the axle.

What I claim as my invention is- 1. A vroad scraper or excavator comprising a cranked axle, Wheels, a bowl, hangers,a bail and tongue, a lever-frame, a latching device, and links connecting the lever-frame with the cranked axle, said parts being constructed, combined, and operating substantially as and for the purpose described.

2. The combination of the lever-frame D D', pivoted to the bowl at e, forward of and below the axle, the hangers A', thebowl A, the crankaxle B, passed through the upper portion of the hangers and having Wheels on its arms, the links F, connected directly to the arms of the axle and to the lever-frame at points in rear of the axle, a tongue suitably connected to the bowl, and stop-pins a2 a3, substantially as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM E. JACOBS.

Wit n esses:

THos. S. GAtrns, J. D; SULLIVAN.

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