Improvements in Fastening Devices for Nuts and Bolts.
Year: 1892

page_text: Date of Application, 6th Jan., 1892
Complete Specification Left, 4th Oct., 1892-Accepted, 19th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Fastening Devices for Nuts and Bolts.
I, AUGUST LOEHNER, of 6 South 22nd Street, St. Louis, in the County of
St. Louis and State of Missouri, United States of America, Constructing
Engineer of Machinery, do hereby declare the nature of this invention to be as
follows:-
This invention relates to nut and bolt fastenings for fish-bars at the joints of
railway-rails, studs, and other devices, to which my improvements may be adapted;
and it consists in certain improvements in such fastenings, as hereinafter described.
The fastening-bolt is passed through apertures in the rail and fish-bars, the said
bolt being threaded a suitable distance from the end where the securing-nut is
applied. Some of the bolt-holes in the fish-bars are reamed out or so formed that
they flare outward to receive conical friction or compression rings the said rings
being made tapering on their outer surfaces to fit in the flaring bolt-holes. Each
of said rings has in its side a slit or opening which is closed by the compression of
the ring when the nut is screwed on the bolt and the fastening is adjusted. The
friction-rings are formed of copper, brass, or other metal of less hardness than that
of which the bolt or the nut is formed, the latter being either of steel or iron, 'so
that when the fastening is secured by wrenching the nut threads will be formed.
by the threaded bolt and nut on the friction-rings, which are in contact with
them.
The threaded aperture through the securing nut is made flaring from the centre
of the nut to its base or inward side, so that the outer half of the nut connects with
the screw-bolt and the threaded inner half closes on the conical compression-ring.
which is in position on the bolt and tapers outward.
In adjusting the fastening to fish-bars at a joint of rails a bolt is passed through
bolt-holes in the opposite fish-bars and rail, the threaded part of said bolt extending
through a flaring bolt-hole in a fish-bar, and a compression-ring is then placed on
the bolt, the base of the ring being outward, and is pressed into the flaring aperture
in the fish-bar. Another of said rings is then placed on the bolt, the base of the
ring being inward, and is pressed against the last-mentioned ring, so that the bases
of the two rings are in contact. The nut is then placed on the end of the bolt, and,
being turned with a wrench, the rings are compressed and driven into their seats,
respectively, and the rings, being of metal of less hardness than that of the other
parts, will yield somewhat to the pressure and become tightly fitted. As the nut is
screwed on, screw-threads corresponding with those on the bolt and nut are formed
on the tapering rings, which are in contact with the said threaded bolt and nut.
Thus a firm and durable fastening is produced, which will withstand the jarring
or vibration of parts caused by passing trains or the operation of heavy machinery,
the device being adapted for use in the construction of various mechanical
devices.
The compression-ring may be formed of a strip of metal with its ends reduced
in thickness, the strip being bent into shape so that one end overlaps the other.
Dated this 6th day of January 1892.

page_text: COMPLETE SPECIFICATION.
Improvements in Fastening Devices for Nuts and Bolts.
I, AUGUST LOEHNER, of 6 South 22nd Street, St. Louis, in the County of
St. Louis, and State of Missouri United States of America, Constructing Engineer
of Machinery, 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 :-
This invention relates to nut and bolt fastenings for fish bars at the joints of
railway-rails, studs, and other devices, to which my improvements may be adapted:
and it consists in certain improvements in such fastenings, as hereinafter described
and claimed.
In the accompanying drawings,
Figure 1 represents a vertical transverse section of a railway-rail and fish-bars
with my improved fastening applied thereto.
Fig. 2 is a side view of the same.
Fig. 3 represents one of the conical friction rings employed in the fastening.
Fig. 4 shows in section the nut and friction ring on a bolt.
A designates the railway-rails, and B the fish-bars in their usual positions.
C indicates the fastening bolt, which is passed through apertures in the rail and
fish-bars, the said bolt being threaded a suitable distance from the end where the
securing-nut is applied. Some of the bolt-holes in the fish-bars are reamed out or
so formed that they flare outward, as shown in Fig. 1, to receive the conical
friction or compression rings a, the said rings being made tapering on their outer
surfaces to fit in the flaring bolt-holes. Each of said rings a has in its side a slit
or opening c, which is closed by the compression of the ring when the nut is screwed
on the bolt and the fastening is adjusted. The friction-rings are formed of copper,
brass, or other metal of less hardness than that of which the bolt or the nut is
formed, the latter being either of steel or iron, so that when the fastening is
secured by wrenching the nut threads will be formed by the threaded bolt and nut
on the friction-rings, which are in contact with them.
•
D indicates the securing-nut, the threaded aperture through which is made
flaring from the centre of the nut to its base or inward side, so that the outer
half of the nut connects with the screw-bolt and the threaded inner half closes on
the conical compression-ring a, which is in position on the bolt and tapers outward,
as shown.
In adjusting the fastening to fish-bars at a joint of rails a bolt C is passed
through bolt-holes in the opposite fish-bars and rails, the threaded part of said bolt
extending through a flaring bolt-hole in a fish-bar, and a compression-ring a is then
placed on the bolt, the base of the ring being outward, and is pressed into the
flaring aperture in the fish-bar. Another of said rings is then placed on the bolt,
the base of the ring being inward, and is pressed against the last-mentioned ring,
so that the bases of the two rings are in contact. The nut is then placed on the
end of the bolt, and, being turned with a wrench, the rings are compressed and
driven into their seats, respectively, and the rings, being of metal of less hardness
than that of the other parts, will yield somewhat to the pressure and become
tightly fitted. As the nut is screwed on, screw-threads corresponding with those
on the bolt and nut are formed on the tapering rings, which are in contact with the
said threaded bolt and nut. Thus a firm and durable fastening is produced, which
will withstand the jarring or vibration of parts caused by passing trains or the
operation of heavy machinery, the device being adapted for use in the construction
of various mechanical devices.
The compression-ring may be formed of a strip of metal with its ends reduced in
thickness, the strip being bent into shape so that one end overlaps the other.

page_text: 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 :- _
The combination, with a screw-bolt C, of one or more plates provided with
flaring bolt-holes, two tapering rings placed on said bolt with their bases adjoining,
as shown, and a nut, the threaded bolt-hole of which is made partly flaring,
so that it incloses the outer tapering ring, substantially as and for the purpose
described.
F. W. BARKER,
Applicant's Agent.