Power-Driven-Implement Frame Page: 3 of 5
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UNITED STATES PATENT OFFICE
IRA ARMSTRONG, OF MERKEL, TEXAS. ASSIGNOR, BY DIRECT AND MESNE ASSIGN-
MENTS, TO DIXIELAND MOTOR TRUCK COMPANY, OF BOWIE COUNTY, TEXAS.
POWER-DRIVEN-IIMIPLEMENT FRAME.Specification of Letters Patent.
Patented Jan. 13, 1920.
Application filed May 21, 1918. Serial No. 235,825.
To all whom it may concern:
Be it known that I, IRA ARMSTRONG, a
citizen of the United States, residing at
Merkel, in the county of Taylor and State
5 of Texas, have invented certain new and use-
ful Improvements in Power-Driven-Imple-
ment Frames, of which. the following is a
specification.
This invention relates to improvements in
10 tractors and it is the principal object of the
invention to provide a tractor especially
adapted for agricultural work and which is
so constructed as to carry various forms of
agricultural devices, thus eliminating the
15 pulling of the same, hence, avoiding exces-
sive draft and strain on the frame of the
tractor and also enable a user to operate the
same in comparatively confined or limited
spaces.
20 Another and equally important object of
the invention is to provide the tractor with
a frame of light but rigid construction capa-
ble of successfully withstanding all shocks,
jars and vibration incident to normal use
25 and to endure and diffuse abnormal stress
throughout the same.
Other independent objects are to provide
features of construction of portions of the
tractor which tend toward the attainment
30 of the above aims irrespective of the relation
in which they are used.
Other objects will be in part obvious and
in part pointed out hereinafter.
The invention accordingly consists in the
35 features of construction, combinations of
elements and arrangement of parts which
will be exemplified in the construction here-
inafter set forth, and the scope of the appli-
cation of which will be indicated in the fol-
40 lowing claims.
In the drawings:
Figure 1 is a top plan view of the im-
proved tractor,
Fig. 2 is a side elevation thereof.
45 d having more particular reference to the
drawings, in connection with which like
reference characters will designate corre-
sponding parts throughout the several views,
the tractor includes a frame comprising a
50 longitudinally disposed substantially U-
shaped body L the rear ends of which are
engaged by a cross bar 2, while diagonal
braces 3 and 4 are connected by rivets or
other suitable fastening devices at their for-ward ends to the forward end of the body 55
1 while the remaining ends are offset as at
5 and connected to the opposite ends of a
cross bar 6. Other cross bars 7 and 8 are
connected at their opposite ends to the in-
termediate portions of the braces 3 and 4, 60
thus, serving to prevent undue movement of
the. same and adding materially to their
rigidity, while another cross bar 9 is ar-
ranged at a point in proximity to the for-
ward end of the body I and is connected at 65
its opposite ends to the adjacent sides
thereof. Bearings 10 are engaged with the
under sides of the intermediate portions of
the several braces 3 and 4 and receive a
transversely disposed axle housing 11 there- o
in in which a drive axle 12 i5 mounted and
carries wheels 13 on its opposite ends; brake
drums being arranged on the inner sides of
the wheels 13 and provided with suitable -
brake bands 14 connected to operating shafts 75
15, which shafts in turn, are engaged by
foot levers 16 arranged on the tractor frame
at a point convenient to the operator.
A third or steering wheel 17 is arranged
' forwardly of the body 1 of the frame and so
is rotatably mounted in the forked lower
end of a spindle 18 received in a vertically
disposed bearing sleeve-19 mounted on said
body I and having its upper end engaged
by angle arm 20; a bevel gear 21 is carried 85
on the upper end of the spindle 18 and hav-
ing connection with a similar gear 22 mo unt-
ed on the adjacent end of a sub-shaft ar-
rangled in a bearing bracket 23 carried on
the sipper end of the angle arm 20, which 90
shaft is in turn universally jointed to the
adjacent end of a steering shaft 24 extend-
ing longitudinally of the frame to a point
in proximity to the operator's seat 25,
whereat- it is provided with a suitable trm 95
of steering wheel or similar handle 26.
Sub-frames 27 and 28, identical in con-
struction, are provided and are formed from
single lengths of metal bent upon them-
selves, as clearly shown in Fig. 1 and hay- 100
ing the opposite ends thereof offset and
apertured in order that they can be secured
to the adjacent portions of the cross bar 7,
while the reinainiun ends thereof are con-
nected by a transversely extending, bar 29 105
and are supported with relation to the trac-
tor frame by means of offset links 36, which
as will be noted, have their lower ends se-.1,328,222.
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Armstrong, Ira. Power-Driven-Implement Frame, patent, January 13, 1920; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257050/m1/3/?rotate=90: accessed July 13, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.