Improvements in Lock-nuts.
Year: 1892

page_text: Date of Application, 8th Mar., 1892
Complete Specification Left, 18th May, 1892-Accepted, 18th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in Lock-nuts.
1, WILLIAM HARRISON, of Fern Villa, Horsforth, near Leeds, Gun Maker, do
hereby declare the nature of this invention to be as follows:-
My invention has reference to certain improvements in lock-nuts.
According to my invention I employ a washer having projections upon its under
surface adapted to fit into the wood surface, or into recesses or notches upon the
metal surface, through which the bolt protrudes, and lock itself thereon, and
recesses upon its top surface into which fit projections upon a second washer or
metal disc which is so locked upon the first washer, and made so that a portion of
its edge can be turned up, by any suitable means, against the square or flat surface
of the nut when tightened, and thereby lock the nut upon the bolt.
The projections and recesses may be made by punching, indenting, stamping,
casting, or otherwise.
L
Mach 1900
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds, Agent.
COMPLETE SPECIFICATION.
Improvements in Lock-nuts.
1, WILLIAM HARRISON, of Fern Villa, Horsforth, near Leeds, Gun Maker, do
hereby declare the nature of this invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
My invention has reference to certain improvements in lock-nuts.
According to my invention I employ a washer having projections upon its under
surface, adapted to fit into the wood surface, or into recesses or notches upon the
metal surface, through which the bolt protrudes, and lock itself thereon, and
recesses upon its top surface into which fit projections upon a second washer or
metal disc which is so locked upon the first washer, and made so that a portion of
its edge can be turned up, by any suitable means, against the square or flat surface
of the nut when tightened, and thereby lock the nut upon the bolt.
DESCRIPTION OF DRAWINGS.
Fig. 1, is an elevation of lock-nut in accordance with my improvements.
Fig. 2, is a plan of Fig. 1.
Fig. 3, is a sectional elevation of lock-nut in accordance with my improvements,
as shown in Figs. 1 and 2.
Fig. 4, is a plan of washer locking into the wood or metal surface, through which
the bolt protrudes.
Fig. 5, is a side elevation of Fig. 4.
Fig. 6, is a section through Fig. 4, on the line Z, Z.
Fig. 6A, shows elevation of modification in the form of a solid washer for locking
the bolt.
Figs. 7 and 8, are sectional elevations showing modifications of my improvements.
Fig. 9, shows an elevation of modified lock-nut in accordance with my improve-
ments.
Fig. 10, is a plan of washer shown in Fig. 9.
- According to my invention I employ a washer A having projections B upon its
under surface adapted to fit into the wood surface by pressure, or into recesses or

page_text: notches, formed by filing or notching out such, upon the metal surface through
which the bolt protrudes, and lock itself thercon, and recesses D upon its top
surface into which fit projections E, upon a second washer or metal disc F, which is
so locked upon the first washer, and made of copper, steel, or other suitable
material, so that a portion of its edge can be turned up, by any suitable means, such
as a chisel, against the square or flat surface of the nut G when tightened, and
thereby lock the nut G upon the bolt C, see Figs. 1, 2, 3, 4, 5 and 6, of the
drawings annexed.
Or the washer A and second washer or disc F may be made as one, that is to say:
in the form of a solid washer the second washer or disc F being formed by means of
a slit or groove around the washer so that a portion of it can be turned up against
the square of the nut upon the bolt, see Fig. 6A.
The projections and recesses may be made by punching, indenting, stamping,
casting, or otherwise.
Or I may form the washer A and disc F with holes L for receiving pins M,
which pass into the surface through which the bolt C protrudes, and so lock the
washers thereto, the said pins being prevented from slipping or falling out, by the
mut G, which is so locked upon the bolt C, by means of the turned up edge of
the washer F, as before set forth, see Fig. 7.
In some cases where projections on the bottom surface of the washer A would be
unsuitable, such projections may be dispensed with and the said washer secured to
the surface through which the bolt C projects, by means of cement, such as white
lead, or other suitable medium, the second washer or disc F being locked upon the
washer A by means of projections E; or the said washer A may be applied
without cement, and caused to bind upon the surface through which the bolt C
protrudes by the tightness of the nut G upon the bolt, see Fig. 8, of the drawings
annexed.
In the case of bolts projecting through wood surfaces I may in lieu of employing
the second washer or metal disc F form the washer A. with a series of holes H
around it, so that when the nut Ghas been tightened upon the bolt C, a pin or
nail J is driven into the wood through one of the said holes and abuts against
the square of the nut G, thereby locking the nut G upon the bolt C, see Figs. 9,
and 10.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is-
1. For locking nuts upon bolts the combination of the washer A and second
washer or disc locked upon each other (or made solid as one) and to the surface
through which the bolt protrudes, the second washer or disc F (or the solid washer)
having a portion of its edge turned up, against the square of the nut so that it is
prevented from turning on the bolt, substantially as shown and described.
2. For locking nuts upon bolts, the combination of a washer A and second
washer or disc F the second washer or disc F being locked upon the washer A,
and having a portion of its edge turned up against the square of the nut, so
that the nut is prevented from turning on the bolt, substantially as shown and
described.
3. For locking nuts upon bolts protruding through wood surfaces the employ-
ment of washers having a series of holes around them for receiving pins or nails
and allowing such to be driven into the wood surface, so that the said pins or nails
abut against the squares of the nuts, and thereby lock the nuts upon the bolts,
as shown and described with reference to Figs. 9 and 10 of the drawings annexed.
רד
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicant.
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicant.