Spike Puller Page: 3 of 4
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UNITED STATES PATENT OFFICE.
RICHARD A. BRADSHAW, OF WINTERS, TEXAS.
SPIKE-PULLER.Specification of Letters Patent.
Patented March 17, 1908.
Application filed June 4, 1907. Serial No. 377,219.
To all whom it may concern:
Be it known that I, RIcIAD A. BRAD-
SHAW, citizen of the United States, residing
at Winters, in the county of Runnels and
6 State of Texas, have invented certain new
and useful Improvements in Spike-Pullers,
of which the following is a specification.
The present invention relates to certain
new and useful improvements in spike pull-
10 ers and resides prmcipally in the provision
of novel means for holding the spike in en-
gagement with the claws of the head.
The invention also contemplates a spike
puller which is mounted upon a roller so that
15 the fulcrum can be moved inwardly as the
spike is extracted, thereby preventing muti-
lation of the spike and decreasing the amount
of power required for pulling the same.
The primary object of the invention is to
20 provide a simple and inexpensive spike
puller embodying the above mentioned fea-
tures, and one which will operate efficiently
under various conditions of service.
For a full description of the invention and
25 the merits thereof and also to acquire a knowl-
edge of the details of construction and the
means for effecting the result, reference is to
be had to the following description and ac-
companying drawings, in which:
30 Figure 1 is a perspective view showing the
application of the improved spike puller.
Fig. 2 is a longitudinal sectional view through
the same. Fig. 3 is a detail view of the
guard arm. Fig. 4 is a transverse sectional
35 view through the head. Fig. 5 is a trans-
verse sectional view through the claws on the
line 5-5 of Fig. 2.
Corresponding and like parts are referred
to in the following description and indicated
40 in all the views of the drawings by the same
reference characters.
Specifically describing the invention the
numeral 1 designates the handle or lever
which is of the usual construction, and 2 the
45 head at the lower end of the lever. This
head 2 has a curved formation and has the
extremity thereof enlarged laterally to a
slight extent and provided with the claws 3
for engaging the head of the spike or like
5o member being extracted. It will be ob-
served that the upper face of each of the
claws 3 has the inner portion thereof serrated
or roughened as indicated at 4 to prevent
slipping of the spike, while the outer side is
55 formed with an upwardly extending guard
Range 5. The intermediate portion of thehead 2 has a slot or recess 6 formed therein
within which the roller 7 is journaled. This
roller 7 is designed to constitute the fulcrum
of the implement and permits the spike 60
puller to be moved inwardly as the spike is
extracted for the purpose of shifting the ful-
crum point and preventing the spike from
being deflected to one side which not only
bends and mutilates the spike but also 65
greatly increases the amount of power re-
quired in pulling the same.
A guard arm S is utilized to retain the spike
in engagement with the claws 3, one end of
the guard arm having a yielding connection 70
with the lower extremity of the lever 1 while
the opposite end is formed with a hook 9
which engages the head of the spike being
operated upon. The inner end of the guard
arm S is bifurcated and the two members 10 75
of the bifurcation are loosely mounted upon
opposite sides of the lever 1 and operate to
prevent the lateral displacement of the guard
arm. A bracket 11 is provided upon the in-
ner end of the guard arm 8 and has a pivotal go
connection with a stem 12 passing loosely
through a keeper 13 upon the lower end of
the lever 1. Encircling the end portion of
the stein 12 is a spiral spring 14 one end of
which bears against a washer 15 placed 85.
against the bracket 11 while the opposite end
bears against a nut 16 at the extremity of the
stem 12. This spring 14 operates to draw
the guard arm S inwardly and hold the hook
9 in engagement with the head of the spike, 90
but at the same time permits yielding of the
members which would prevent injury to the
implement should at any time an excessive
force be applied thereto.
In the operation of the tool the hook 9 95
upon the guard arm 8 is placed in engage-
ment with one side of the spike head and
the claws 3 moved against the opposite side
of the spike head. A downward pressure
upon the lever 1 then operates in the usual 100
manner to withdraw the spike and as the
spike is extracted the head is gradually
moved inwardly upon the roller 7 in order to
shift the fulcrum point and always have a
direct upward pull upon the spike. 105
Having thus described the invention, what
is claimed as new is:
1. In a device of the character described,
the combination of a lever, a head at one
end of the lever provided with a claw, a 11o
guard arm cooperating with the claw, and a
stem connecting the guard arm and head, theNo. 882,449.
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Reference the current page of this Patent.
Bradshaw, Richard A. Spike Puller, patent, March 17, 1908; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth512515/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.