A Method of Locking and Unlocking Nuts upon Screwed Bolts to any Given Surface.
Year: 1886

page_text: Date of Application, 20th Sept., 1886.
Complete Left, 18th June, 1887.
Complete Accepted, 5th Aug., 1887.
A Method of Locking and Unlocking Nuts upon Screwed Bolts to
any Given Surface.
THOMAS ROWE WESTON 61 Hampton Park Bristol Iron Merchant do hereby
declare the nature of this invention to be as follows :-
The Nut on either or both its faces and sides if necessary, to be jagged grooved
indented or raised with any regular or irregular angles jags grooves wave lines
indentations or protrusions to lock into corresponding angles jags grooves wave lines
indentations or protrusions, more or less in number, upon the surface which comes
immediately in contact with the Nut when screwed up upon the Bolt, thereby partially
or wholly locking the Nut to the surface to which it comes in contact, thus rendering
the Nut less liable or wholly unliable to be moved out of its place unless by the
same or similar spanner or tool with which it was screwed up upon the Bolt.
Dated 20th day of September 1886.

page_text: COMPLETE SPECIFICATION.
A Method of Locking and Unlocking Nuts upon Screwed Bolts to
any Given Surface.
I, THOMAS ROWE WESTON, Iron Merchant, of the City of Bristol in the County of
Somersetshire 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 consists of a nut either square, hexagon, or octagonal, with its one
or both faces, or sides if necessary, jagged, grooved, waved, indented or raised, with
any regular or irregular angles, grooves, wave lines or any other indentations, to
lock into a corresponding jagged, grooved, waved, indented or raised with any
regular or irregular angles, grooves, wave lines or any other indentations cut or
formed in any fixed fish plate, or any other article, where the whole is to be bolted
together, more or less in number upon either one or more surfaces, which comes
immediately in contact with the jagged, grooved, waved, indented or raised face of the
nut, thereby permitting these several grooves, or any other indentures, protrusions,
to lock into each other by means of forcing the nut up in to its proper or stationary
position with a spanner or any other tool intended for a similar purpose.
I prefer to construct the nut in steel, wrought or malleable iron, or in any
other metal, either square, hexagon, or octagonal, or any other shape, with either on
or more faces or sides of the nut jagged, grooved, waved, indented, with any regular
angles, grooves, wave lines, or any other indentations as in Figures 1 and 2, marked A,
to lock into a fish plate for permanent way of railways or any other purpose, with
corresponding grooves, waves, indentations or any other jagged surface cut into the
plate or raised above the plate as in Figure 4, marked F.
Wherever my invention is applicable, when the nut has been screwed up, it offers
a powerful resisting force to the backing off of the nut after it has been forced home
into its proper bed, being entirely impossible to back off any bolt by vibration or any
other means, except by force of a spanner or any other tool used for this purpose. And
in order that my Invention may be thoroughly understood I now proceed to describe
the accompanying drawings thereof, reference being had to letters and figures marked
thereon: Figure 1, represent a square nut with the jagged, grooves, or indentures
marked A. Figure 2, denotes an octagon nut with the jagged, grooves, waves, or
any other indenture marked A. Figure 3 is a section of the nut. Figure 4 is the
fish plate or any other article with the corresponding jagged, grooves, waves, or any
other indentures marked F, with those on the nut A, to permit of the nut to be
wrenched by a spanner into its proper bed.
Like letters refer to like parts in each of the figures. A, the jagged, grooved,
raised, indented or any other shape surface on the nut. B, the nut. C, the thread
cut in the nut. D, a fish or any other plate or surface with the corresponding jagged,

page_text: grooved, raised, indented or any other shape surface, cut in or raised to receive the
home, in this its proper bed. F, the corresponding jagged, grooved, raised,
indented or other shape surface cut in any plate and termed the bed for the nut.
Having now fully described the nature & object of my Invention, and the manner
in which the same is to be performed, I claim as new and novel the following:
First. The combination of a nut B, constructed in any shape with the grooved,
jagged, waved, indented or raised surface A, or any other shape to lock or be wrenched
into a corresponding grooved, jagged,, waved, indented or raised surface F, or any
other shape cut or constructed in or incident to any fish or other plate or surface D,
either sunk, raised, or on the surface to permit the nut to be wrenched home into its
proper and stationary bed, and in the case of double or treble nuts the surface A,
shall lock or be wrenched into one another, as its proper and stationary bed,
substantially herein described and according to the accompanying drawings.
Secondly. The general construction of the nut B, screwed up the thread of a bolt,
in the manner herein before described, and which cannot possibly back off any bolt
by vibration or any other means except by a spanner or other tool used for this
purpose, substantially herein described and according to the accompanying drawings.
Dated this the 18th day of June 1887.
THOMAS ROWE WESTON,
Applicant.