Wheeled Scraper Page: 4 of 7
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UNITED STATES PATENT OFFICE.
CHARLES RATH, OF MOBEETIE, TEXAS.
WHEELED SCRAPER.
SPECIFICATION forming part of Letters Patent No. 482,414, dated September 13, 1892.
Application filed January 20, 1891. Serial No. 378,461. (No model.)To all wzviho it Innt cotcerz.u
Be it known that I, CHARLES RATH, of Mo-
beetle, in the county of Wheeler and State of
Texas, have invented certain new and useful
5 Improvements in Wheeled Scrapers; and I do
hereby declare the following to be a full, clear,
and exact description of the same, reference
being had to the accompanying drawings,
forming a part of this specification, and to the
to letters of reference marked thereon.
This invention relates to improvements in
that class of scrapers which are adapted to
gather up loose dirt or other material, convey
the same to the point desired, and there dis-
15 charge it; and it has for its object to provide
a scraper of this class, in which the handling
of the scraper-bowl to load, convey, and dis-
charge the dirt may be accomplished with lit-
tle or no labor on the part of the operator.
20 The invention may be said to consist,
broadly, of a scraper in which the lowering of
the bowl and raising of the same when loaded
is automatically accomplished, the mechanism
for performingthe two operations beingdriven
25 from the ground-wheel and placed under the
control of the driver or operator.
More specifically the invention consists of
a scraper in which the bowl is raised when
loaded by means of springs or their equiva-
30 lent, which are wound or the power accumu-
lated during the time the scraper is returning
without its load.
The invention further consists in certain
novel details of construction and combina-
35 tions and arrangements of parts to be herein-
after described, and pointed out particularly
in the claims at the end of this specification.
In the accompanying drawings, Figure 1 is
a side elevation of a scraper constructed in
40 accordance with my invention with the bowl
lowered in position for loading. Fig. 2 is a
similar view with the bowl elevated for car-
rying the load, and with the gears meshing to
lower the bowl and rewind the springs as the
45 scraper is advanced. Fig. 3 is a section
through the machine, looking toward the side
shown in Figs. 1 and 2. Fig. 4 is a rear ele-
vation. Fig. 5 is a detail of the operating
mechanism for the shifting-gear. Fig. 6 is a
50o top plan view of the scraper. Fig. 7 is a de-
tail view.Similar letters of reference in the several
figures indicate the same parts.
The frame A, wheels B, and scraper-bowl
may be of any ordinary construction. In the 55
preferred form, and as shown in the drawings,
however, the scraper-bowl is open at front
and rear, and the load is retained within the
bowl by means of the dumping-door D at the
rear end. As is usual in this class of scrap- 60c
ers, the bowl is capable of a vertical move-
ment, preferably, however, by being adjust-
ably pivoted near the rear end in the hang-
ers a, depending from the frame A, with
mechanism to be presently described for con- 65
trolling the movement of the front edge of
the scraper-bowl. The dumping-door D is
mounted in forwardly-extending arms d, piv-
otally connected to the shaft C', carrying the
scraper-bowl, by which arrangement the door 70
is caused to close more certainly as the front
edge of the bowl is lowered to receive loads.
Suitable catches D' are pivoted on the side of
the scraper-bowl for co-operation with pro-
jections d' in the door, said catches being 75
connected to the crank-shaft D2 for simulta-
neous operation, and the said shaft is oper-
ated to release the catches by means of the
foot-lever DS or the hand extension thereof
d3. In case the door does not close the oper- 80
ator may close it by means of a handle D',
connected to the top of the door.
As has been before intimated, the scraper-
bowl when loaded is elevated by means of
poweraccumulatedduringthe time thescraper 85
is running light, and in the preferred form.
I accomplish this result by means of spring-
pressed crank-arms connected to the bowl for-
ward of its pivotal point. In the construction
shown in the drawings a number of springs 90o
and counter-weights are employed, the main
power, however, being stored in the springs
E surrounding and at one end connected to
the shaft E', journaled in the front bar of the
frame A. The shaft E' is provided with rear- 95
wardly-extending arms or crank ends e, which
atan intermediate point are connected to the
front portion of the scraper-bowl by links e'.
The rearwardiy-extending ends of the arms e
are connected by flexible connections e2 with ioo
a winding drum or drums E2, controlled by the
operator and adapted to be thrown into or
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Reference the current page of this Patent.
Rath, Charles. Wheeled Scraper, patent, September 13, 1892; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth173167/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.