Nut-Lock Page: 2 of 2
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UNITED STATESPATENT OFFICE.
ANDREW M. LANCE, OF BATSON, TEXAS.
NUT-LOCK.Specification of Letters Patent. Patented Sept. 6, 1910.
Application filed November 16, 1909. Serial No. 528,319.To all whom it may concern:
Be it known that I, ANDREw M. LANCE,
a resident of Batson, in the county of
Hardin and State of Texas, have invented
5 certain new and useful Improvements in
Nut-Locks, of which the following is a
specification.
The primary object of this invention is
to provide a resilient nut locking device of
10 simple, strong and durable construction, one
that can be readily applied to the various
forms of nuts and bolts commonly used.
The invention includes a locking member
that will not work loose or be injuriously
15 affected when subjected to a sudden shock
or series of prolonged vibrations, and one
which will retain its efficiency after long
usage or after having been removed and re-
adjusted a number of times either in its
20 original or in a different use.
The invention consists in certain novel
features of construction, and in the assem-
blage and combination of parts, hereinafter
fully described and claimed, and illustrated
25 in preferred form in the accompanying
drawings, wherein-
Figure 1 is a side elevation of a nut lock
embodying my invention. Fig. 2 is an end
view, illustrating the mode of placing the
30 lock on a bolt and nut. Fig. 3 a similar
view with the parts locked together. Fig.
4 a top plan of the locking member. Fig. 5
a perspective view of the locking member.
Referring to the drawings, 2 is the bolt,
35 3 the nut, and 4 the locking member. The
latter is preferably formed of resilient ma-
terial, and is provided with a C-shaped body
. portion 5, having a flat inner face 6, adapt-
ed to bear closely against one face of the
40 nut 3 when in operative position. The ends
of the body portion are turned up at ap-
proximately right angles to body 5 to form
gripping arms 7. The adjacent faces of
said arms are curved at 8 to encircle the
45 bolt 3, and are provided with inwardly ex-
tending teeth 9, adapted to bite into and
grip the threads at opposite sides of the bolt,as shown in Fig. 3. The arms 7 extend be-
yond bolt 3 and their adjacent faces 10,
are spaced apart to permit of the insertion 50
of a tool for forcing them apart sufficiently
to allow the locking member to be slipped on
and off the bolt. A convenient form of
pincer-like tool for this purpose is shown at
A, Fig. 2, but it will be noted that arms A 55
may be sprung apart in any suitable manner.
In the operation of my device, .after nut
3 has been adjusted upon the bolt, the lock-
ing member 4 is sprung open, as Fig. 2, and
slipped over the bolt until body portion 60
5 and arms 7 bear closely against nut 3.
The arms 7 are then released and allowed to
resume their normal position, forcing teeth
9 firmly against the bolt threads. The flat
face 6 of the locking member being in close 65
contact with one of the faces of the nut,
the latter is prevented from turning in
either direction upon the bolt, and the parts
of the device are locked firmly together.
Obviously, a reversal of the above operation 70
will release the locking member without in
any way impairing its efficiency or unfitting
it for further use.
I claim:
A nut lock formed of a single piece. of 75
metal having its intermediate portion form-
ing the permanent C-shaped body portion
having a flat inner face to engage the side
of a nut, resilient arms 7 extended from the
extremities of the body at right angles to 80
said flat face, the inner faces of the arms-
inwardly from their outer extremities-
curved and normally spaced apart to im-
pinge the embraced bolt in a plane at right
angles to the flat nut-holding face of the 85
body, the outer extremities of the resilient
arms extended to receive an expanding tool,
substantially as described.
In testimony whereof I affix my signature
in presence of two witnesses.
ANDREW M. LANCE.
Witnesses:
M. S. MICHAEL,
J. A. PEAL.969,543.
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Lance, Andrew M. Nut-Lock, patent, September 6, 1910; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513605/m1/2/?q=%22%22~1: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.