US1376643A - Scraping apparatus - Google Patents

Description

mom, SQRAPING APPARATUS. APPLICATION FILEDk FEB. 25. 1918.

Patented May 3, 1921.

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UNITED STATES JOHN ROLLI, 0F WEST ALLIS, WISCONSIN.

SCRAPING APPARATUS.

Application filed February 25, 1918.

T 0 all whom it may concern Be it known that I, JOHN RoLLi, a citizen of the United States, residing at lVest Allis, county of Milwaukee, and State of lVisconsin, have invented new and uset'ul Improve,

The object of my invention is to provide y a form of scraper which may be operated in advance ot the motive power, and in which the operation may be controlled from a seat located at the rear orn the apparatus.

A further object of my invention is to provide convenient means for utilizing motive power to propel the apparatus and to dump the scoop.

A further object ot my invention is to provide means whereby the scoop may be supported at varying elevations in accordance with the requirements of the work.

My invention is peculiarly adapted for use as a snow scraper for the removal of snow from streets.

In the drawings Figure 1 is a side elevation of a scraper embodying my invention, the same being designed for use upon snow covered streets and'adapted to be propelled by a team of horses.

Fig. 2 is a bottom view of the same.

Fig. 3 is a detail view, in cross section, ot' the fulcrum bar or rod over which the scoop tilts.

Fig. 4 is a sectional view on line 4--4 of Fier. 1.

ike parts are identified by the same reference characters throughout the several views.

The scoop 1 is supported within a frame having raised standards 2 connected above the scoop by a cross bar 3.V In the particular construction shown, the lower ends of the standards 2 are pivotally connected at 4 with runners 5. The standards are provided with slots 6 through which a tulcrum rod 7 passes, the scoop 1 resting upon this rod. Cables 9 extending over pulleys 10 rotatively mounted on the pivot rod 7 may be used in connection with a winding drum and ratchet wheel 12 to raise and lower the scoop without interfering with its capacity for being tilted over the rod 7.

A reach composed of parallel reach bars Specification of Letters Patent.

Patented May 3, 1921.

Serial No. 218,991.

25 connected at their front ends with the standards 2 are extended rearwardly and supported near their rear ends by a steering head shaft or bar 17, centrally located at the rear end of the machine and provided with a single runner 18. It will, of course, be understood that the runners 5 and 18 may be removed and supporting wheels substituted it desired.

An evencr bar 2O provided with whiile trees 21 is supported above the reach bars 25 and adapted to swing about an axis at 23. The central portion ot the evencr bar is mounted to slide along the reach bars 25 underneath a set of guide bars 27. The axis or fulcrum about which the evener bar turns is a part of a latch head carried by the swinging latch arm 28, the latter being pivotally connected with a cross rod 29 connecting the reach bars 25.

By raising the latch arm 28 and withdrawing the latch head 23 from its position as a fulcrum for the evener bar, the latter will be allowed to move forwardly along t-he reach bar, whereupon it will transmit motion through a cable 30 to the scoop. The rear end of the scoop is provided with a bracket 33 having pivoted extension arms 34 adapted to swing downwardly and rearwardly as the scoop tilts, thereby raising the scoop at its rear end to a higher level than would otherwise be the case. The cable30 is preferablv divided, having two branches 30 and 30 which pass over pulleys 35 carried by the raised standards 36. The arms 34 are prevented from swinging downwardly and rearwardly beyond a straight line substantially parallel with the rear end of the scoop, the bracket 33 having shoulders 37 which limit the swingingmovement of the extension members. Curved guides 38 cause the extension members to fold under the scoop when the scoop is in scraping position as shown in Fig. 1.

It will be understood that, when it is desired to dump the scoop, it is merely necessary to raise the latch arm 28 and then drive the horses forwardly a short distance, whereupon power will be applied through the evener bar 20 and cable 30 to tilt the scoopV to dumping position. A latch 40 will thereupon engage a cross bar 41 which connects the branches 30 and 30 of the cable and holds the scoop in dumping position until the contents have been removed. The latch may then be'retracted from the operators seat 42 bymeans of a lever 43, cable 44 and lever 45. Y

After the scoop has been dumped, the operator will actuate lever 45 to retract latch 40 and will then back the horses, whereupon the evener bar will be drawn backwardly, this motion being derived from the haines or collars through cables46 having chains 47 or other means for attachment with the haines. These cables 46 pass around pulleys 48 connected with a cross bar 49 underneath the scoop, the cables then extending backwardly and being connected with cable 30 at 50. As soon as the evener bar has been drawn backwardly to normal position, latch arm 28 will drop by gravity to its Fig. 1 pof sition, thereby locking the evener bar in retracted position, where it will be held until again released by raising the latch arm 28.

lf desired, latch arm v28 may be lifted by a4 foot lever 52 in an obvious manner. The bar 49 may constitute an integral wing flange on rod 7, as shown in Fig. 3.

lt has been stated that the scoop and its fulcrum rod 7 may be raised by means of cables 9 located on the respective standards 2. lllhen in raised position, it may be held in this position by a latch 56, which engages underneath cross bar 49, this bar being connected vwith cross rod 7 and adapted to be lifted with it. When lowered, the pivot rod 7 will be supported at the lower ends of the slots 6 in the standards 2.

It. will, of course, be understood that the vehicle will be guided by means of a lever 60 connected with the head rod or shaft 17. The evener bar 20 will be guided by a shoe 60 mounted to slide between the bars 25. Sufficient play is allowed between the shoe 60 and bars 25 to permit the evener bar to swing about the latch head 23 as a center.

The bars 25 are connected by overhead bars 16 with the pulley supporting standards 36, to brace the latter, and these standards have depending portions provided with horizontal arms 86 pivoted at 62 to the cross bar 49. Stay links 63 connect the bars 25 with the standards 2, and are adapted to allow the bars 25 to be lifted with the standards 36 when the scoop is lifted, the links 63 then lifting'V at their rear ends while still serving as stays for the standards 2. These are details of construction which may be modilied at pleasure.

It is sometimes desired to tilt the scoop manually for dumping purposes. This may be accomplished by a crank 65 operating a winding drum or pulley 66 to actuate cable 67. The latter extends over a central pulley 68 between the pulleys 85, and is connected with an arm 69 of bracket 33.

I Instead of pivoting the scoop directly to the fulcrum rod 7, I preferably employ crossed cables 79, having theirends connected with" the scoop and cross bar 49 respectively, as shown in Fig. 2. This construction is of peculiar advantage in handling snow and slush, as the slight play of the scoop on rod 7 keeps the parts from clogging or freezing in a manner to interfere with effective operation.

I claim.

1. A scraper, including the combination with a vehicle frame having its side bars connected at their front ends by upwardly extending posts, and an overhead cross'bar, a scoop supported from said posts, and adapted for tilting movement upon a transverse axis in various positions of vertical adjustment, steering mechanism and driving connections at the rear end of said frame, and manually controllable means for utilizing said driving connections to manipulate the scoop into and out of dumping position.`

2. A scraper including the combination of a vehicle frame provided with forwardly projecting bars at the sides thereof, having their front end portions transversely connected by upwardly extending posts and an overhead cross bar, a scoop supported between the posts, adapted for tilting movement underneath said cross bar into and out of dumping position, driving and steering connections at the rear ends of said frame, and means manually controllable from the rear portion of said frame for manipulating the scoop.

8. A scraper, including a supporting frame, a scoop mounted at the forward end of the frame, and adapted for tilting movement upon a transverse axis, a bracket secured to the rear end of the scoop, and provided with a depending extension, adapted to fold underneath the scoop, a cable con- 105 nected with said extension, and extending upwardly therefrom, means for actuating said cable to dump the scoop, said folding extension being adapted to swing downwardly during the dumping movement vof 110 the scoop, together with curved guides connected with the frame, and adapted to automatically fold said extension when the scoop is retracted from dumping position.

4. A scraper, including a supporting 115 frame, a scoop mounted at the forward end of the frame and adapted for tilting movement upon a transverse axis, a rearwardly extending reach, an evener bar slidingly mounted upon the-rear end of the reach and 120 adapted-to receive power topropel the apparatus, a latch adapted to normally hold the evener bar from sliding forwardly, cable connections between the evener bar and the rear end of the scoop adapted when the ments may be transmitted to the evener bar to retract it to normal position after the scraper has been dumped.

5. A scraper, including a supporting frame, provided with a tilting scoop at its forward end, a sliding member carried by the rear end portion of said frame, a cable connected with the sliding member, and eX- tending rearwardly therefrom, a pulley carried by the frame in the rear of said sliding member, around which said cable passes, another pulley carried by the frame in a raised position, and over which the cable passes, said cable being connected with the bottom portion of the scoop at its rear end, whereby movements of the sliding member may be transmitted to dump the scoop.

6. A scraper, including a supporting frame, provided with a tilting scoop at its forward end, a sliding member carried by the rear end portion of said frame, a cable connected with the sliding member, and eX- tending rearwardly therefrom, a pulley carried by the frame in the rear of said sliding member, around which said cable passes, another pulley carried by the frame in a raised position, and over which the cable passes, said cable being connected with the bottom portion of the scoop at its rear end, whereby movements of the sliding member may be transmitted to dump the scoop, together with an auxiliary cable connected with the first mentioned cable, and adapted to retract the sliding member after a scoop dumping operation.

movements of the power applying means to v retract said movable member to normal position.

8. A scraper including the combination of a vehicle frame provided with forwardly projecting bars at the sides thereof, having theii1 front end portions transversely connected by upwardly extending posts and an overhead cross bar, a scoop supported between the posts, adapted for tilting movement underneath said cross bar into and out of dumping position, driving and steering connections at the rear ends of said frame, and means manually controllable from the rear portion of said frame for manipulating the scoop either by hand power or by the power employed to drive the vehicle.

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

JOHN ROLLI. Witnesses:

FREDERICK W. NoL'rE, O. C. WEBER.

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