US1839847A - Wheeled excavating scoop and scraper - Google Patents

Description

.Fam 55 i932. F. A. GRoUNDs WHEELED EXCAVATING SCOOP AND SCRAPER Filed March 5, 1,930 4 sheets-Sheet ged Grounds BQ QM Jan. 5, 1932. F, A, GROUNDS A 1,839,847

WHEELED EXCAVATING SCOOP AND SCRAPER Filed March 5, 1930 4 .ShetS-SheetI 2 nvenlor A Homey Jan.-5, 1932. Fl A. GRoUNDs 1,839,847

4WHEELED EXCAVATING scoop AND scRAPER Filed March '5, 195o 4 sheets-sheet 3 l f l i I 5 QQ Invenlor f 1,/ 'fea., C11-rounds A Homey Jan. 5, 1932. F. A. GRoUNDs WHEELED EXCAVATING SCOOP AND SCRAPERv 4 Sheets-Sheet 4 Filed March .5, 193C f inw n e m I A llorncy Patented Jan. 5, 1932 UNITED STATES PATENT)ori-'ica FRED GROUNDS, F SHREVEPORT, LOUISIANA, ASSIGNOR OF FIFTY-FIVE PER CENT TO COMMERCIAL NATIONAL :BANK 0F SHREYEPORT, LOUISIANA, 0F SHBEVEPORT,

LOUISIANA, A CORPORATION WHEELED EXAVATING SCOOP AND SCRAPER AApplication led Iarch 5,

This invention relates to new and useful improvements 1n Wheeled excavatmg scoops and scraper-sand more particularly to de-l i vices of this character of the type illustrated in my copending application Serial No. 412,-

127 filed December 6, 1929, and upon which this invention constitutes an improvement.

The primary object of this invention is to provide, in manner as hereinafter set forth l0 a Wheeled excavating scoop and scraper of the above mentioned character which "embodies a novel construction and arrangement whereby Sallie may be expeditiously attached to or detached from various types of tractors without thenecessity of altering said tractors or the device. y

Another important object of the invention is to provide a wheeled excavating scoop and scraper embodying a construction and arrangement of arts for utilizing the pulling force of the'- raft machine to elevate the scoop with respect to the ground after Sallie has been loaded.

Another important object of the invention resides in the provision of novel manually controlled means for releasably retaining the scoop in any one of its several positions.

All of the foregoing and still further objects and advantages of the invention may become apparent after a consideration of the accompanying drawings when taken in con- A vnection with the following detailed specification, said drawings and specification illustrating a preferred elnbodiment of the invention.

In .the drawings: Figure 1 is a view-in side .elevation of the machine in the loading position and attached to a tractor hitch,

Figure 2 is a top plan *view of the machine in loading position,

' Figure 3 is a longitudinal vertical sectional view taken substantially on the line 3-3 of Figure 2, j

Figure 4 is a view in rear elevation of the machine,

Figure 5 is a fragmentary detail view principally in top plan and partly broken awav in section showing the cable drum re- 5 taining means.

V,longitudinally over the rearwardly and up- 1930. serial no. 433,414.

Referring to the' drawings in detail, the reference character A designates generally what will be hereafter referred to as a shiftable frame comprising a pair of bars 1'y and e 2 having rearwardly diverging forward por- 55 tions and terminating in spaced arallel rear end portions having secured or rotation thereon adjacent their free ends a crank axle designated generally by the reference character 3 and including an offset intermediate .portion 4 and the cranks 5 on the opposite ends thereof upon which are rotatably mounted the` supporting wheels 6.

Removable bearings 7 are mounted on the upper side of the bars 1 and 2 for detachably coupling the axle 3 thereto, and as clearly seen in the drawings, the axle 3 is mounted on the shiftable frame A at points intermediate the offset portion 4 thereof' and the crank portions 5 on the opposite ends thereof.

Also mounted 'for rotation on the axle 3 adjacent the bars 1 and 2 and inwardly thereof is an excavating scoop 8 having arcuate runners 9 mounted on the opposite longitudinal sides thereof and extending from the bottom of said scoop at the forward end thereof to the rear wall 10 of said scoop.

It will further be seen that the scoop also includes the "side walls 11 through which the axle 3 rotatably extends.-

The forward ends of the bars 1 and 2 of the shiftable vframe A are' rigidly connectedl together and have mounted for rotation therebetween a 'roller 12 adapted to travel wardly inclined stationary frame B which includes a tubular portion 13 having an integral coupling shank or pin 14 on its forward end for disposition through the eye 15 of aconventional tractor hitch.'

The eye 15 extends rearwardly from the frame portion 16 at the rear end ofa conventional tractor Iand said eye and frame portion constitute nopart of this invention. At its rearend,I the tubular member 13 of the stationary frame B has rigidly secured thereto diverging arms 17 having free ends pivotally connected to the upper end of the levers 18 which are rigidly mounted in any lm tending rock shaft 19 is journalled in the bearings 20 mounted on the parallel portions of the arms 1 and 2 of the shiftable frame A at a point forwardlyof the runners 9 and fixed on said shaft adjacent the opposite en'ds thereof are the dogs 21 adapted for engagement with pairs of stop lugs 22 and 23.

formed integrally on the front and rear portions of the runners 9 respectively and with the pair of lugsA 24 disposed on the lower side of the scoop 8 adjacent the entering edge thereof.

An upstanding lever 25 is fixed centrally on the shaft 19 and is actuated by a hand lever 26. mounted for swinging movement on the portion 16 of the tractor, through the medium of the flexible cable 27 which has one end connected to the hand lever 26 from whichsaidcable extends and is trained over a pulley 28 on' the free end portion of the lever 25, said cable then extending undera pulley 29 mounted on the bar 2 of the stationary frame A and having its opposite end connected as at 30, to the stationary frame B. l An inclined strip 31 extends between the diver-ging portion of the bars 1 and 2 of the shiftable frame A at apoint forwardly of the rock shaft 20. A rod 32 is pivotally connected to an intermediate portion of the lever 25 and has its free end portion slidably disposed through the inclined strip 31 as best illustrated in Figure 3 of the drawings.

The rod 32 has fixed thereon adjacent the lever 25 an abutment 33 and disposed between said abutment and the inclined strip 31 and encircling the rod 32 is a compression spring 34 adapted to yieldingly urge the lever 25 rearwardly and maintain the dogs 21 in operative position.

A horizontally disposed drum 35 is mounted for rotation on the end portion 16 of the tractor and wound thereon is an endless cable 36. Each end of cablev36 is preferably wrapped around the drum 35 tive times and the center wrapping is anchored to said drum by any suitable means as indicated at 37.

The endless cable 36 is trained over a pulley 38 which is journalled -for rotation in a bracket 39 mounted for longitudinal adjust# ment on the tubular portion 13 of the stationary frame B.

As best illustrated in Figure 1 of the drawings, the bracket 39 is provided with a. transverse opening adapted to be brought into selective registry with any one of a series of openings 4() inthe tubular member 13 and a locking pin is inserted through said registering opening for securing the bracket in adjusted position.

As illustrated to best advantage in Figure 5 of the drawings, the drum 35 is provided at one end with an enlarged flange portion 42 and extending between said ange and the drum are the radially disposed spokes 43. The drum 35 is supported for rotation in the vertical standards 44 which is mounted on the rear frame portion of the tractor.

Pivotally mounted for 'swinging movement one each on the front-.and rear edges of one of the standards 44 and adapted for engagement with the spokes 43 is a pair of oppositely disposed gravity actuated pawls 45 and 46 respectively having the opposed beveled portion 47 and 48 for engagement by the cam surfaces 49 and 50 on the outer side of an upstanding lever 51 mounted for swinging movement on the shaft 524 which supports the drum .35 on the standards 44.

Anv integral foot lever 53 is connected to the lower end of the lever 51 for shifting same by foot power when it is so desired.

As will be apparent, the pawl 45 is adapted to drop in front of the spokes 43 and prevent forward rotary movement of the drum 35 and the pawl 46 is adapted to drop behind the spokes 43 and prevent rearward rotation of the drum The lever 51 is adapted to kick the pawls 45 and 46 out of engagement with the spokes 43 when it is 4so desired through the medium of the cam surfaces 49. and 50.

As clearly illustrated in thedra'wings, the shiftable frame A is rigidly secured to the lower flight of the endless cable 36 as indicated at 54. An integral stop lug 55 is formed on the forward end portion of the stationary frame B for engagement with the roller 12 on the shiftable. frame A to limit the forward movement of said roller on the tubular member 13, as will be readily apparent.-

In Figure 1 of the drawings, the reference numeral 56 indicates indotted lines the operator seat which is mounted on the tractor.

Y ln use, the scoop 8 is disposed in the position illustrated in the drawings when said scoop is being loaded.

After the scoop is loaded to capacity, the operator swings the lever 51 forwardly to the position illustrated in the drawings in a manner to disengage the pawl 45 from the spokes 43 and thus release the drum 35 to rotate on the standards 44. The draft of the tractor then pulls forwardly on the stationary frame B and draws the tubular member 13 thereof through the forward end of the shiftable frame' A, said shiftableframe riding rear- {yardly and upwardly lon said tubular memer.l

When this occurs the endless cable 36 travels over the pulley 38 on the bracket 39 and is wound on one end of the drum 35 and is payed out from the opposite end portion of said drum, as will be understood. The arms 17 of the stationary frame B swing the levers les 18 forwardly in a manner to rock the crank axle 3 and elevate the scoop 8 and the rear end Lacasse fgr'ound. The rearward relative movement of the shiftable frame A with respect'to-the stationary frame B is compensated for by the cable 27 which actuates the dogs 21 by reason of the arrangement of said cable over the pulley 28 and 29. A

By this arrangement of the cable and pulleys, .the tension of said cable will remain the same at all times.

With the scoop in elevated position, the device is drawn to the point of unloadin an/d this operation is accomplished by simply swinging the hand lever 26 forwardly in a manner to disengage the dogs 21 from the lugs 22 on the forward end portion of the runners 9 through the medium-of the cable 27 shifting the lever 25 forwardly against the tension of the compression spring 24.

The scoop 8 will then tiltforwardly and when the cuttingfedge'thereof engages with the ground same will be rapidly rotated until the dogs 21 which have been returned to operative position by the compression spring 34 when the operator releases the lever 26, engage with the lugs 23 on the rear end portion of the runners 9 and the scoop is maintained in a vertical position to function as a scraper in a manner to level the pile of dirt which has been dumped therefrom.

y When the scraping operation has been completed, the operator again shifts the lever V26 to disengage the dogs 21 from the lugs 23 and the scoop rotates further until the lugs 24 on the bottom thereof engage with the dogs 21 and in this position the device is ready to be transported back to the point of loading.

When the point of loading is again reached the dogs 21 are disengaged from' the lugs 24 and the scoop is returned to its horizontal position. To lower the scoop into engagement with the ground, the lever 51 is swung rearwardly in a manner to release the pawl 45 and kick the pawll 46 out of engagement with the spokes 43 and thus permit the drum 35 to rotate in a reverse direction to allow the shiftable frame A to gravitate downwardly on the tubular member 13 of the stationary frame B and the crank axle 3 is also swung to its former position. IThe dogs 21 are theny disengaged from the lugs 24 and scoop swings to its loading position with the dogs in engagement with the lugs 22.

The intermediate portion of the crank axle 3 is offset as indicated at 4 in order that said axle will not obstruct the passage of the dirt into the scoop 8. v

While a preferred embodiment of the invention has been herein illustrated and de` scribed it is to be strictly understood that various changes in the details of construction and arrangement of the invention may be resorted to without vdeparting from the es p spirit of the invention as claimed.

What-1s clalmed as new 1s:

1. A wheeled scoop and scraper of the character described comprising an axle having its opposite end portions termed to provide cranks, a scoop rotatably mounted on the axle, supporting wheels mounted for rotation on the cranks, levers rigidly fixed -to the cranks and extending upwardy therefrom, a stationary frame operatively' connected at its rear end 'to the levers and at its front end to a draft implement, a shiftable frame journalled on the axle at its rear end portion and having its forward end mounted for longitudinal movement on the stationary frame, said stationary frame adapted to rock the axle in a manner to shift the scoop vertically when the shiftable frame moves longitudinally. v

2. A wheeled scoop and scraper of the character described comprising an axle having its opposite end portions formed to provide cranks, a scoop rotatably mounted on the axle, supporting wheels mounted for ro- Atation on the cranks, levers rigidly ixed to the cranks and extending upwardly therefrom, a stationary frame comprising an elonV gated, inclined forward portion detachably connected to a.. draft implement and a pair of rearwardly diverging arms operatively connected to-the levers, a shiftable frame journalled on the axle atits rear4 end portion and having its forward end supported for longitudinal movement on the inclined forward portion of the stationary frame, `said stationary frame adapted to rock the axle in a manner to shift the scoops vertically wllen the shiftable frame moves longitudina y. c Y

3. A. wheeled scoop and scraper of the character described comprising an axle having its opposite end portions formed to provide cranks, a scoop rotatably mounted on the axle, supporting wheels mounted for rotation on the cranks, levers rigidly fixed to the cranks and extending upwardly therefrom, a stationarvframe comprising an elongated, inclined forward portion detachably character described comprising an axle having its opposite end portions formed to pro,- vide cranks, a scoop rotatably mounted on the axle, supporting wheels mounted for rotation on the' cranks, levers rigidly fixed to the cranks and extending upwardly therefrom,

a stationary frame comprising an elongated, inclined forward portlon detachably conf ed for rotation on the stationary frame, an endless cable wrapped around the drum and secured thereto and trained over the pulley, said endless'cable rigidly attached to the forward end portion of the shiftable frame and manually controlled latching means for retaining the drum against rotary movement. 5. A wheeled scoop and scraper of the character described comprising an axle having its opposite end portions fbrmed to prov vide cranks, a scoop rotatably mounted on the axle, supporting wheels mounted for rotation on the cranks, levers rigidly fixed to the cranks and extending upwardly there-y V from, a stationary frame comprising a rear- Wardly and upwardly inclined tubular forvward portion having its frontend detachably connected to the draft implement and a pair of diverging arms rigidly fixed on the rear end ofthe tubular portion and operatively connected to the upstanding levers, a shiftable frame journalled on then axle at its rear end portion and having its forward end supported for longitudinal movement onthe tachably connected to a draft implement, said stationary frame further including a pair of rearwardly diverging arms operatively connected to the free end portions of the levers, a shiftable .frame journalled for support at its rear end on the axle and having its forward end mounted for longitudinal movement on the inclined bar of the stationary frame, said stationary frame adapted to rock the axle in a manner to shift the.

scoop verticall when the shiftable frame moyes longitu inally, lmanually controlled means for releasably retaining the shiftable frame against longitudinal movement, sprin-g controlled dogs rotatably mounted on the shiftable frame for engagement withthe lugs on the runners in a manner to retain the scoop against rotary movement on the axle when it is so desired and manually operable means operatively connected With the spring controlled dogs for disengag'ing the same from the lugs on the runners.

7 A structure of the character described comprising a wheel supported crank axle, a scoop rotatably mounte on the axle, means operatively connecting the axle to a draft implement for rotation thereby, means connected with the axle and having one end portion shiftably supported on the first named means, means for releasably securing the second-named means against movement relative to the first named means, and coacting means on the second-named means and the scoop for releasably securing said scoop against rotation on the axle.

In testimony whereof I atlix my signature.

\ .e FRED A. GROUNDS. v

inclined portion of the stationary frame, said stationary frameadapted to rock the'axle in -a manner to shift the scoop verticall when the shiftable frame moves' longitu inally, manually controlled means for retaining the shiftable frame against longitudinal movement and manually operable spring controlled means for releasably retaining the scoop against rotary movement on the axle. 6. A wheeled scoop and scraper of the character described comprisin an axle having. its opposite end portions ormed to provide cranks, a scoop rotatably mounted on the axle, upstandin-g arcuate runners mountf ed on the opposite sides of the scoop and extending lon 'tndinally from the front to the rear thereo integral lugs projecting outwardly from the runners adjacent the opposite ends thereof, supporting wheels mounted for rotation on the crank portions of the axle, levers rigidly fixed to the crank portion and extending upwardly therefrom, a stationary frame comprising an inclined forward bar portion havin-gits front end de-

Images