US1598801A

US1598801A - Wheeled earth scraper

Info

Publication number: US1598801A
Application number: US80037A
Authority: US
Inventors: James M Brooks
Original assignee: Western Wheeled Scraper Co
Current assignee: Western Wheeled Scraper Co
Priority date: 1926-01-08
Filing date: 1926-01-08
Publication date: 1926-09-07
Anticipated expiration: 1943-09-07

Description

. Sept. 1

. 1,598,801 J. M. BROOKS WHEELED EARTH seamen Filed Jan. e, 1926 ill) Patented Sept. 7, 1926.

UNITED STATES 1,598,8t'l QFFICE.

JAMES M. BROOKS, OF ATLANTA,- GEORGIA, ASSIGNOR TO WESTERN WI-IEELED SGRAPER COMPANY, GF AURORA, ILLINOIS.

A CORPORATION OF ILLINOIS.

W I-IEELED EARTH SCRAPER.

Application filed January The object of this invention is to simplify and ii: prove the structure to the end that it will have the maximum efficiency and durability and also that the draft-hook arrangement shall be so constructed as to serve,- in addition to a draft appliance, as a safety' hook arrangement for avoiding accidental dumping of the load while transporting the same, as more fully hereinafter set forth.

In the drawing Fig. 1 is a vertical sectional View the apparatus in loading position;

Fig. 2 is a partial plan View of the same;

Fig. 3is a vertical sectional view showing the parts in carrying position;

Referring" to the drawing annexed, by reference-characters, 5 designates the usual scoop provided with the usual rear handles (5 and hung in the usual manner by hangers showing 7 to pii'ots S on the front ends of the idebars El of the dump-frame which are fastened to the upright parts of the axle arch 10.

The yoke dump-frame 9 is provided with the usual rearwardly-extending handle ll and with the usual spring-actuated latch 12 which is adapted to engage under a hook 155 in the usual manner, mounted on the back wall of the scoop. A brace 14 braces the dump-frame with respect to the arch of the axle. A tongue 15 is connected by the thill irons 16 and 17 to the scoop by pivots 18 which are carried by brackets 19 fastened to the side walls of the scoop to the rear of the hangers 7. The two thill irons 16 and 17, at each side of the machine, are fastened together in overlapped relation by

rivets

20 and 21 to form therebetween a guide-loop for the draft-hooks 23.

Each draft-hook 23 is pivotally mounted in the forward end of the loop 22 by means of a horizontal pivot 24, and the depending end of the d aft-hook extends rearwardly and downwardly to a position alongside of the outer face of the adjacent wall of the scoop, where it will be in a position to engage the usual scoop-hook 25 fastened to said wall. The draft-hooks are maintained in proper position with reference to the scoophook 25 by means of a stop 26 formed integral with the upper end of the draft-hook and adapted to rest upon the upper edge of the thill iron 17. The draft-hooks may be simultaneously swung upwardly at their rear, lower ends to disengage them from the scoop-hook 25 by means of a bail 27 mounted 8, 1926. Serial No. 80,037.

slidably in eyes 28 and having their lower ends pivotally connected at 29 to the draft hooks. The crossbar of the bail extends across the machine, between the wheels, at a point to the rear of the axle, so as to be within convenient reach of the operator of the machine.- a

When the machine is loading, as shown in Fig. l, the draft-hooks are in engagement with the scoop-hook 25, as usual. When the load is raised, as in Fig. 1, by pulling down the handle 11 until the latch 12 eiigages its hook 123, the scoop-hook 25 will move up wardly and out of the draft-hooks, thus suspending the load on latch 12. The draft-hooks, however, will be in position to be immediately engaged by the scoop-hooks 25, should the scoop in its forward travel engage an obstruction which would tend to tilt it wardly to spilling or dumping po'sition;'in this way,'the two hooks are used also as sa fety-hooks, i. e., hooks which are adapted to prevent premature or accidental dump ing or spilling during transportation of the load. then the scoop is dumped, it is inverted forwardly in the usual manner by throwing the handle 11 over forwardly; and when the scoop is returned to transportation position, the scoop-hooks 25 will strike against the rounded rear ends of the drafthooks and pass forwardly and upwardly under the same, to the position shown in F 3; and then when the scoop is again lowered to loading position, the draft-hooks will gravitate into position to interlock with the scoop-hooks when the scoop is subjected to the rearward pressure of loading. The limiting chain 30, or chains cannect the ban.- die 6 to the dump frame 9 to prevent the dump-frame from being pulled over forwardly while loading, the construction of this chain arrangement being such that the chains may be shortened or lengthened.

It will be understood that the bail 27 is raised by the operator to disaline the hooks only when it is desired to dump the scoop; the draft-hooks are lifted at about the time of throwing the handle 11 forwardly for dumping, and then released to permit the hooks to drop back to normal position to insure the return of the hooks to the position shown in Fig. 3 whenthe scoop is again brought back to carrying position.

lVhat I claim as new is:

the hangers 7 and the downwardly and back- 1. In a wheeled earth scraper of the type ing a scoop-hook at each side, a draft appliance pivotally connected to the scoop and 1 aving a pair of rearwardly-extending' gravitating draft-hooks adapted to engage said scoop-hooks, stop-means for the draft hooks, and a manually-operable device for raising said draft-hooks out of engagement with said scoop hooks, said scoop-hooks and draft-hooks being so positioned and shaped that when the scoop is returned to hauling position after dumping the two sets of hooks will automatically assume safety position and when the scoop is lowered will automatically assume draft position.

2. In a wheeled scraper of the type set forth, a pivotally-suspended scoop having scoop-hooks on its side walls, a draft frame pivotally connected to the scoop and carrying at each side. a pivotally-mounted drafthook extending rearwardlyand downwardly in position to engage said scoop-hooks while loading and to lie just back of and out of actual engagement with said scoophooks during transportation, stop means being associated with each of said hooks'to' properly position the same with reference to said scoo -hooks, and manual means for lifting sald draft-hooks out of engagement with the scoop-hooks, said scoop-hooks and draft-hooks being so positioned and shaped that when the scoop is returned to hauling position after dumping the two sets of hooks i will automatically assume vsafety position and when the scoop is lowered will automatically assume draft position.

3. In a wheeled earth scraper of the type set forth, a pivotally-suspended scoop having scoop-hooks on its side-walls, a draftframe plvotally connected to the side-walls of the scoop, means for raising and lowering the scoop for dumping it, a pair of draft-hooks pivotally mounted at their forward, 11 per ends on said draft-frame and provide at said upper ends with stops en gaging said draft-frame to thereby limit the downward gravitation of the drafthooks, the rear, lower ends of said drafthooks lying alongside the side-walls of the scoop and havinghooks facing forwardly, scoop-hooks on the walls of said scoop, manually-operable means for temporarily lifting the draft-hooks out of engagement with the scoop-hooks at the time of dumping, said scoop-hooks and draft-hooks being so positioned and shaped that when the scoop is returned to hauling position after dumping the two sets of hooks will automatically assume safety position and when the scoop is lowered will automatically assume'draft position.

Intestimony whereof I hereunto aflix my signature.

JAMES M. BROOKS.