IMPROVEMENTS IN APPARATUS FOR LOCKING THE NUTS UPON THE BOLTS BY WHICH FISH PLATES ARE SECURED TO RAILWAY DATYC 339 ARW-5
Year: 1883

page_text: LETTERS PATENT to George Grover of 3 Haselrigge Road Clapham in the
County of Surrey for an Invention of "IMPROVEMENTS IN APPARATUS FOR
LOCKING THE NUTS UPON THE BOLTS BY WHICH FISH PLATES ARE SECURED
TO RAILWAY DATYC
339
ARW-5
"
PROVISIONAL SPECIFICATION left by the said George Grover at the Office
of the Commissioners of Patents on the 20th April 1883.
GEORGE GROVER of 3 Haselrigge Road Clapham in the County of Surrey
"IMPROVEMENTS IN APPARATUS FOR LOCKING THE NUTS UPON THE BOLTS BY
WHICH FISH PLATES ARE SECURED TO RAILWAY RAILS AND FOR OTHER LIKE
PURPOSES."
This Invention has for its object improvements in apparatus for locking the nuts
upon the bolts by which fish plates are secured to railway rails and for other like
purposes.
.
The fish plates are secured to Railway Rails by bolts passing through the fish
plates and the rails and receiving nuts upon them. To lock these nuts and prevent
them turning I employ a trough shaped piece of metal of which the length is about
equal to that of the fish plates and the width such that the nuts can enter but not
turn within it. I insert round washers between the fish plate and the nuts so that
when screwed up the nuts stand off a short distance from the fish plate. I form
holes in the bottom of the trough and when all the nuts are turned with their sides
horizontal and vertical.. I place the trough over the nuts which then project through
the holes into the trough. I next slide the trough endwise and this brings a
narrower part of each hole underneath the nut. Finally I secure the trough so
that it may not slide back by inserting a cotter and key through the sides of the
trough in such manner as to abut against one of the nuts: The nuts may be so
formed that the washers beneath them are not required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
"
"
the said George Grover in the Great Seal Patent Office on the 19th October
1883.
GEORGE GROVER of 3 Haselrigge Road Clapham in the County of Surrey
IMPROVEMENTS IN APPARATUS FOR LOCKING THE NUTS UPON THE BOLTS BY
WHICH FISH PLATES ARE SECURED TO RAILWAY RAILS AND FOR OTHER
PURPOSES
"
:
LIKE
This Invention has for its object improvements in apparatus for locking the nuts
upon the bolts by which fish plates are secured to railway rails and for other like
purposes.
The fish plates are secured to railway rails by bolts passing through the fish
plates and the rails and receiving nuts upon them. To lock these nuts and prevent
them turning I employ a trough shaped piece of metal of which the length is about
equal to that of the fish plates and the width such that the nuts can enter but not
turn within it. I insert round washers between the fish plate and the nuts so that
when screwed up the nuts stand off a short distance from the fish plate. I form
holes in the bottom of the trough and when all the nuts are turned with their
sides horizontal and vertical I place the trough over the nuts which then project
through the holes into the trough. I next slide the trough endwise and this brings
a narrower part of each hole underneath the nut. Finally I secure the trough so
that it may not slide back by inserting a cotter and key through the sides of the
trough in such manner as to abut against one of the nuts. The nuts may be so
formed that the washers beneath them are not required.
In order that my said Invention may be most fully understood and readily carried
into effect I will proceed to describe the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS
Figure 1 is a section of a rail and fish plates taken through the centre line of
one of the bolts used for securing the whole together. Figure 2 is an elevation of
the same. Figures 3. 4 and 5 show in section, elevation and plan respectively the
trough shaped piece used for locking the nuts. In these Figures A. A'. are the
ends of two rails coupled together in the usual way by fish plates B. B¹. and
bolts C, C, C, O, passed through them. Washers D, D, D, D, are placed on the
bolts. c c. c. c, are nuts screwed on to the ends of the bolts and brought to such
a position that their sides are horizontal and vertical. E is my locking trough it
has holes e e. e. e. in its bottom for the nuts to pass through. Each hole is a
square of a size to allow a nut to pass freely and on one side of the square is a
semi circular notch of a diameter somewhat exceeding that of the washer as is
Been in Figure 4. This locking trough is passed over the nuts and is slipped
end wise so that the semi circular end of each hole embraces the washer within it.
A gib and cotter F. F'. are then passed through holes marked G in Figures 3 and 5.
These holes are formed in the sides of the trough in such a position that the back
of the cotter comes against the side of one of the nuts as shown in Figure 2, thus
preventing the trough sliding back. In place of having a washer on each of
the bolts under the nuts, the nuts may be formed with a raised boss on their unde
Bide.
Having thus described the nature of my Invention and the manner of performing

page_text: the same I would have it understood that I claim the locking trough E locking the
nuts upon bolts by which fish plates are secured to railway rails or locking other
similar parts under like circumstances.
In witness whereof I the said George Grover have hereunto set my hand and
seal this nineteenth day of October in the year of our Lord One thousand eight
hundred and eighty three.
GEORGE GROVER (L.S.)