Improvement in Locomotive Earth-Excavators. Page: 3 of 3
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UNITED STATES PATENT OFFICE,
ABEL HAWLEY, OF GALVESTON, TEXAS.
IMPROVEMENT IN LOCOMOTIVE EARTH-EXCAVATORS.
Specification forming part of Letters Patent No. 171,564, dated December 28, 1875; application filed
December 8, 1875.To all whom it may concern:
Be it known that I, ABEL HAWLEY, of
Galveston, in the county of Galveston and
State of Texas, have invented certain new
and useful Improvements in Locomotive
Earth-Excavators, of which the following is a
specification :
Tile object of this invention is to provide
an earth-excavator, principally for use in mak-
ing the road-beds of railroads, which shall
not only do its work continuously, but which
shall be equally efficient in throwing up an
embankment or ill making a deep cut.
To this end, therefore, this invention con-
sists of a locomotive traction-engine, carry-
ing a rotary boring-wheel provided with ra
dial cutters and peripheral buckets, said
wheel being operated by the engine as the
machine advances up to its work, the details
of all of which will be hereinafter fully de-
scribed.
In the drawing, forming part of this speci-
fication, Figure 1 is a perspective view of tile
whole machine. Fig. 2 shows the adjustable.
connection of the driving-shaft with one driv-
ing.wheel. Fig. 3 is a plan of the bottom of
the machine. Figs. 4 and 5 show the means
of adjusting the height of the boring-wheel,
and the position, horizontally, of its driving-
pinion.
In all the figures like letters indicate the
same parts.
A is the main frame or body of the ma-
chine, upon which is carried, in any calven -.
ient position, a boiler and any suitable en-
gine or engines. B B are the driving-wheels,
and C O tle truck or steering wheels. D is
the boring - wheel, provided with radial cut-
ters c d and peripheral buckets d2 d?. This
boring-wheel is of the same general construc-
tion as that shown in my rotary dredging-
machine, and is vertically adjustable, to suit
the depths of its c:ts, by means substantially
the same as einployed in said machine. E is
a shaft of the machine, which is actuated by
the engine or engines, either by the interven-
tion of ordinary eonmectin.-rods and cranks,
by gearing, or by means of pulleys and belts.
On the shaft E are two pinions, Ei E2, which
mesh into the internal gearing ff of the driv-
ing-wheels B. The pinion F', for driving the
boring-wheel D, is laterally adjustable bymeans of sliding bearings g g, in which its
shaft F isjournaled. The plows PP are se-
cured to the frame of the machine by any suit-
able means. Said plows are placed in front
of the driving-wheels B B, and, by virtue of
such position, cut a clear path for the tread
of said wheels. The axles b b of all the wheels,
and the frame carrying the plows P P, may
be independently lengthened, so that when it
is desired to cut down by the wheels D into
the earth, below the tread of the wheels B B
C C, the said wheels will be supported by the
earth on each side of the cut made by said
wheel D. H.is alever, connected to the steer-
ing-gear of the machine, which gear may be
of any approved form. In the drawing said
gear consists of a toothed sector, worm-shaft,
and pinion, operated by the lever H. L l are
levers for throwing in and out of gear the pin-
ions E2 E'.
Having thus fully described this locomotive
earth-excavator, as of my invention I claim-
1. A locomotive earth-excavator consisting
of a traction-engine of any approved form,
having mounted thereon, ill adjustable bear-
ings, a rotary boring-wheel carrying radial
cutters and peripheral buckets, all arranged
and operating substantially in the manner
hereinbefore described, for the purposes set
forth.
2. The adjustable shaft E and. its pinions
El E2, in combination with the driving-wheels
B B, whereby either one of said wheels may
be rotated alone, or both at tile same time, at
the will of an operator, substantially in the
manner hereinbefore described, for the pur-
poses set forth.
3. The adjustable driving-shaft F and its
pinion F2, in combination with the boring-
wheel D, whereby said pinion is thrown in
and out of gear with the boring-wheel, and
adjusted to mesh into the gearing on said
wheel at the varying elevations of the wheel,
all substantially ill the mainer hereinbefore
described, for the purposes set forth.
In testimony that I claim the foregoing as
my own I affix my signature in presence of
two witnesses.
ABEL HAWLEY.
Witnesses:
JAS. F. DUHAMEL,
THOMAS BYRNE.
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Hawley, Abel. Improvement in Locomotive Earth-Excavators., patent, December 28, 1875; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth166510/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.