Combined Plow and Scraper Page: 3 of 4
[1], 3 p. : ill. ; 23 cm.View a full description of this patent.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
1,071,176
plate 6 carries a row of plow members 11,
having the nature of pointed bars, project-
ing at right angles from the plate 6, and
mounted sufficiently close to each other
5 to thoroughly break any surface upon
which said plows are made to act. Some-
what closer to the lower edge of the
plate 6, there are mounted three equidistant
bars 12, which are somewhat shorter than
10 the plow members, and are downwardly in-
clined, forming an angle of approximately
forty-five degrees with said plate. The func-
tion of the projecting bars 12 will herein-
after be made clear.
15 When the machine is traveling in the di-
rection of the arrow shown in Fig. 2, the
plate 6 occupies the position shown in said
figure, the plow members 11 being operative
in said position. The strain to which the
20 plow members are subjected when in use,
impresses upon the plate 6 a tendency to
rotation. This tendency is resisted and
overcome by the stop-bar 10, thus casing
the plow members to maintain their opera-
25 tive positions relative to the surface sup-
porting the machine, as long as the machine
travels in the direction of the arrow shown
in Fig. 2.
When the machine is travelig in the di-
30 rection of the arrow shown in Fig. 4 the
plate 6 occupies the position shown in full
lines in said figure, adapting said plate to
act as a scraper, and rendering the plow
members inoperative. The strain to which
35 the plate 6 is subjected while exercising the
function of a scraper, impresses upon said
plate a tendency to rotation, which is re-
sisted and overcome by the stop-bar 9.
Thus the plate 6 will continue to exercise
40 the function of a scraper as long as the ma-
chine continues to travel in the direction
of the arrow shown in Fig. 4.
When the direction of the travel of the
machine is reversed, it is desirable to auto-
45 matically shift the plate 6, so as to bring
it to a position corresponding with the
changed direction of travel.
A description will now be made of a. de-
vice provided to facilitate the shifting of
s0 the plate 6 when the direction of travel is
'eversed.
Upon each of the brackets 8. a bearing 13
is mounted, said bearings being similarly
attached to the legs which support the ex-
s5 tremity of the bar 10. A pin 14 is mounted
in each bearing 13 with one extremity pro-
jecting outward, and the projecting ends of
said pins form pivots, upon which are
mounted the upper ends of swinging arms
60 15. During the travel of the machine, the
arms 15 drag upon the surface supporting
the machine, and are inclined in a direction
opposite to that in which the machine trav-
els. The lower extremities of the arms 15
65 are weighted, as indicated at 16, thus in-creasing the natural tendency of said ex-
tremities to maintain contact with the
ground during the travel of the machine.
Beneath each weight 16, a spike 17 projects
downwardly in alinement with the corre- 70
lated arm. As soon as the direction of
travel of the machine is reversed, the spikes
17 penetrate the surface supporting the ma-
chine and remain embedded in said surface
until the machine has moved a sufficient dis- 75
tance to swing the arms 15 to their limiting
positions of rearward inclination with the
changed direction of travel. As the arms 15
pass through a vertical position, in under-
going the change described, they slightly 80
elevate the correlated end of the rectangular
frame, thus permitting the plate 6 to more
readily undergo the necessary angular dis-
placement by freeing said plate from firm
contact with the ground. The members 15 85
are essential in shifting the plate 6 from
the position shown in clotted lines in Fig. 4
to that shown in full lines in the same fig-
ure, although they might possibly be dis-
pensed with in accomplishing the reverse 90
change. When a change in the' direction of
travel of the machine takes place, the plate
6 swings from a position in which the lower
edge of said plate rests upon the ground, to
a position in which the extremities of the 95
plow members 11, rest upon the ground, or
vice versa. In order to facilitate the change
in the position of the plate, the pointed bars
12 are made to form a means for supporting
said plate intermediate of its two limiting 100
positions.
With each of the two arms 15, there is
correlated a keeper member 18, having the
nature of a horizontal bar mounted upon
the outer surface of the correlated beam 1 105
and spaced therefrom, the extremities of the
bar being secured to said beam at points
equidistant from the vertical position of
the arm.
It will be readily seen from the above ex-' 110
planation that the invention is such as to
endow one machine with dual functions of
a plow and scraper, these functions being
automatically made to correspond with the
direction of travel of the machine. By ef- 115
fecting such a combination, the work of
grading or excavating may be carried on
with greater economy of time and labor
than is permitted by the methods now com-
monly employed. 120
The invention is presented as including
all such modifications and changes, as prop-
erly come within the scope of the following
claims.
What I claim is; 125
1. A combined plow and scraper, com-
prising a rectangular frame, a combined
scraping and plowing member, said com-
bined scraping and plowing member being
pivotally mounted at one end portion of 130la
Upcoming Pages
Here’s what’s next.
Search Inside
This patent can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Patent.
Reese, Edwin M. Combined Plow and Scraper, patent, August 26, 1913; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth853873/m1/3/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.