Improvements in Nut Locks.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Nut Locks.
GTON
STREET
We, SAMUEL FRANK CLOUSER, of the Clarendon Hotel, Washington Street,
Brooklyn, New York, Mining Engineer, and RICHARD NIXON PETERSON, of
No. 189, Broadway, New York, Importer of Precious Stones, do hereby declare
the nature of this invention, and in what manner the same is to be performed, to
bé particularly described and ascertained in and by the following statement :-
This invention relates particularly to nut locks designed for use in connection
with bolts for joining the ends of railway rails by means of fish plates, and in
analogous places where it is desired to firmly lock a nut, so that when it is screwed
home it will hold the bolt firmly in position, so that there will be no liability of the
nut becoming loosened or released through jars or shocks, such as are encountered
in the use of bolts and nuts in the places referred to.
In the accompanying drawings,
Figure 1 is a horizontal sectional view of the ends of a pair of railway rails
joined together by fish plates and bolts, and having the improved nut lock herein
referred to located in position for use preparatory to turning the nuts into their
locked position.
Figure 2 is a plan view, partly in section, of the same parts, showing the nuts
in all cases screwed firmly home.
Figure 3 is a side elevation of the same, also showing the nuts in their locked
position.
Figure 4 is a plan view of the improved nut lock washer.
Figure 5 is a cross sectional view, showing a bolt with the nut in locked position.
Figure 6 is a similar view showing the spring locking washer as adapted for use
with a single bolt and bar.
Figure 7 is a perspective view of a nut with the improved form of locking
ratchets or teeth.
This
The invention, as applied to railway service, consists of a slotted washer of
sufficient length to pass beneath all the nuts at each rail junction, said washer being
preferably of an elastic material of the form shown in Figure 1, and provided with
oblong slots having sufficient width to allow for expansion and contraction.
washer, lettered d is placed in position over the threaded ends of the bolts c, as
shown in Figure 1, and the nuts e are then screwed home, said nuts being provided
with bevelled shoulders i, as clearly shown in Figure 7, the bevel on the shoulders
being in such direction that, as the nut is driven home, they will slide freely over
the edges of the slot and finally lock the nuts in a fixed position, as clearly shown
in Figure 3, the elastic or yielding nature of the washer il tending always to hold
the nuts from loosening effects of jars or shocks.
In Figure 6 is shown the application of this improved form of nut lock to a single
bolt, the washer being prevented from turning either by a screw or by a
shoulder the latter, however, is preferable, inasmuch as the screw h might become
loosened.
It is, of course, to be understood that any form or shape of lug or latch which
might be substituted for the bevelled shoulders i would be equivalent in point of
construction and use, and the present application is intended to cover broadly this
generic feature of locking a nut through the agency of a loose spring washer and a
aut having locking lugs or ledges.
Having now particularly described and ascertained the nature of our said inven-
ion, and in what manner the same is to be performed, we declare that what we
claim is :-
First. In combination with a screw bolt, a slotted spring washer and a nut

page_text: provided with a tooth or teeth adapted to engage and lock with said washer, sub-
stantially as described.
Second. In combination with a fish plate or plates and a pair of rails, two or
more screw bolts and nuts, the latter being provided with teeth on their under side
adapted to engage with the slotted spring washer, substantially as described.
Dated this 24th day of March 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicants.