CERTAIN IMPROVEMENTS IN NUT LOCKS
Year: 1878

page_text: LETTERS PATENT to Edwin Reese, of Baltimore, State of Maryland, United
States of America, Gentleman, for the Invention of "CERTAIN IMPROVEMENTS
IN NUT LOCKS."
Sealed the 21st June 1878, and dated the 1st January 1878.
PROVISIONAL SPECIFICATION left by the said Edwin Reese at the Office
of the Commissioners of Patents on the 1st January 1878.
EDWIN REESE, of Baltimore, State of Maryland, United States of America,
Gentleman. "CERTAIN IMPROVEMENTS IN NUT LOCKS."
This Invention has reference to means for preventing the loosening or unscrewing
of nuts upon bolts, and, while capable of various applications, is especially designed
for adaptation to the fish plates of railway rails.
Figure 1 represents a plan view of an ordinary nut.
Figure 2, a side elevation of a bolt, constructed as herein-after described.
Figure 3, a plan view of the washer I use.
Figure 4, a cross sectional view of my Invention as applied to the fish plates of
an ordinary Trailroad rail.
And Figure 5, a plan view of the washer I use in the last-named connection.
The bolt A is of the ordinary construction except in being compressed on opposite
sides, as shown; the nut B is the usual one, and a washer C of sheet metal is pro-
vided, being perforated and slotted, as illustrated; the circular aperture c being
large enough to pass over the threaded end of the bolt, while the slot c' is adapted
to fit upon the compressed portion of the latter.
In applying my Invention to the fish plates of railway rails, a radially corrugated
washer D is used.
In combining the parts, the bolt is first inserted as usual, the washer slipped over
its threaded end, its slot c¹ holding the compressed portion of the bolt. The nut is

page_text: screwed home and the projecting side of the washer is bent up against the nut. It
is evident that the nut will thus be securely held, as the washer which retains it is
incapable of turning upon the bolt.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edwin Reese in the Great Seal Patent Office on the 25th June
1878.
EDWIN REESE, of Baltimore, State of Maryland, United States of America,
Gentleman. "CERTAIN IMPROVEMENTS IN NUT LOCKS."
This Invention has reference to means for preventing the loosening or unscrewing
of nuts upon bolts, and, while capable of various applications, is especially designed
for adaptation to the fish plates of railway rails.
The accompanying Sheet of Drawing shows arrangements embodying my
Invention,―
Figure 1 representing a plan view of an ordinary nut.
Figure 2, a side elevation of a bolt, constructed as herein-after described.
Figure 3, a plan view of the washer I use.
Figure 4, a cross sectional view of my Invention as applied to the fish plates of
an ordinary Trailroad rail.
And Figure 5, a plan view of a washer I use in the last-named connection.
The bolt A is of the ordinary construction except in being compressed on opposite
sides, as shown; the nut B is the usual one, and a washer C of sheet metal is pro-
vided, being perforated and slotted, as illustrated. The circular aperture c being
large enough to pass over the threaded end of the bolt while the slot of is adapted
to fit upon the compressed portion of the latter.
In applying my Invention to the fish plates of railway rails, a radially corrugated
washer D is used.
In combining the parts, the bolt is first inserted as usual, the washer slipped over
its threaded end, its slot c¹ holding the compressed portion of the bolt. The nut is
screwed home and the projecting side of the washer is bent up against the nut. It
is evident that the nut will thus be securely held, as the washer which retains it is
incapable of turning upon the bolt.
Figures 6, 7, and 8 show a modification of the above-described arrangement,
Figure 6 being an elevation of a bolt having a groove or channel in lieu of the neck,
as above; Figure 7, a section through the same; and Figure 8, a plan of the
washer.
The projection d on the washer C fits into the groove or channel e in bolt A, and
so prevents the nut and washer from turning.
Having thus fully described my said Invention, what I claim is,—
First. In combination with a bolt having a compressed portion, as shown, the
perforated and slotted washer, radially corrugated or not, and adapted to be bent
up against the nut, as set forth.

page_text: Second. In combination with the longitudinally grooved bolt and a nut, the
washer having a projection adapted to engage with the groove in the bolt, as
described.
In witness whereof, I, the said Edwin Reese, have hereunto set my hand
and seal, this Twenty-fourth day of May, in the year of our Lord One
thousand eight hundred and seventy-eight.
EDWIN REESE.
(L.S.)