Year: 1886

page_text: Date of Application, 18th Feb., 1886.
Complete Left, 11th Dec., 1886.
Complete Accepted, 11th Jan., 1887.
I, JOHN HARRISON of Careby, in the County of Lincoln, Engineer do hereby
declare the nature of this invention to be as follows:-
My invention relates, to that class of chair in which a wooden wedge is usually
employed, to secure the Rail; and is intended to replace the wooden wedge by a
metallic one; so constructed that it shall at once secure the Rail without injury;
fitting itself to the irregularites of the rail and chair; and can be adjusted or made
to tighten itself automatically, in case of wear or movement.
To carry my invention into practical effect, I prefer to make my wedge of a strip
of plate steel contracted into deep corrugations (somewhat like the letter, m ;) rather
deeper than the space which it will occupy when in position between the chair and the
rail. To place the wedge in position in the chair, it is elongated and so held, until
properly placed; and when released it at once contracts itself: But the space between
the rail and the chair, being to small to allow the wedge to assume its normal shape, the
bows or crowns, of the corrugations, wedge or bed themselves, alternately against the
chair, and the rail; fitting themselves to any irregularites, of the surface, or to any
wear, or movement, and thereby securing the Rail without injury.
When a firmer
The ends of the wedge, can be made to project outward, from the rail; slightly
beyond the cheek of the chair, to prevent the wedge working out.
grip is required, than the spring of the wedge is able to exert; a bolt can be passed
through the wedge, from end to end, and tightened by means of a nut.
Instead of making the wedge of one piece of metal; I can construct it of several
pieces, or strips; rather longer than the space between the rail, and the chair. These
pieces have a hole, through the middle; and are placed in the chair, to incline
alternately to the right, and to the left; and may be made either to butt against, or to
hook into each other, at the points, where they come in contact, with the chair, and the
rail. A suitable bolt is passed through the holes, in the strips, having a nut, for
tightening, by contracting the wedge, and a spring washer, or spring, can be placed
under the nut, to make the wedge self tightening when once adjusted.
IT ADDISON

page_text: I, JOHN HARRISON of Careby in the County of Lincoln, Engineer 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 relates to, that class of chair, in which a wooden wedge is usually
employed, to secure the rail; and is intended to replace the wooden wedge by a
metallic one; so constructed that it shall at once secure the Rail without injury;
fitting itself to the irregularites of the rail and chair; and can be adjusted, or made to
tighten itself, automatically in case of wear or movement. I prefer to make the wedge
of a strip of plate steel, contracte dinto deep corrugations, (somewhat like the letter m ;)
rather deeper than the space it will occupy when in position in the chair. This will
be clearly understood by reference to figure 1, and 2 of the accompanying drawings.
Fig. 1 showing the wedge in position, in plan; Fig. 2 being a sectional elevation of
A is wedge, B rail; and C chair. To place the wedge in position in the
chair, (as shown in drawings) it is elongated, or drawn in; and when released it at
once, contracts itself; But the space between the rail and the chair being too small
to allow the wedge to assume its normal shape, the bows or crowns of the corruga-
tions, wedge or bed, themselves alternatly against the chair and the rail, fitting
themselves to any irregularites of the surface, or to any wear or movement, and
thereby securing the rail without injury.
the same
The ends of the wedge can be made to project, outwards from the rail slightly
beyond the cheek of the chair, to prevent the wedge working out; This is illustrated
by figures 3, and 4; of the accompanying drawings: Fig. 3, shows wedge in position,
in plan Fig. 4 being a sectional elevation of the same: A is the wedge, B rail:
and C, chair: and when a firmer grip is required than the spring of the wedge is able
to exert; a bolt b (shown by Fig. 3 and 4) is passed through the wedge from end to
end, and tightened by means of nut b¹.
Instead of making the wedge of one piece of metal I can construct it of several
peices, or strips rather longer than the space between the rail and the chair. These
peices have a hole throug the middle, and are placed in the chair to incline, alternately
to the right and to the left; and may be made either to butt against, or hook into
each other at the point, where they come in contact with the chair and rail: A
suitable bolt is passed through the holes having a nut for tightening, or contracting;
and a spring, or spring washer, can be place under the nut, to make the wedge self.
tightening when adjusted: This will be clearly understood, by reference to Figures 5,
and 6: of the accompanying drawings; Fig. 5, shows wedge in position, in plan:
Fig. 6 being a sectional elevation of the same: A, is wedge; B, rail; C chair:
b, bolt; b, spring.
Having now particularly discribed, and ascertained the nature of my invention,
and in what manner the same is to be performed, I declare that what I claim is.
1st. The construction of a wedge, for securing rails, in railway chairs; which when
contracted, endwise expands to secure the rail, in the chair: substantially as herein-
before shown and discribed. .

page_text: 2nd. In the construction of a wedge for securing rails, in railway chairs; of a plate
of metal, which shall automatically, tighten itself when once place in position:
substantially as hereinbefore shown and discribed in reference to figures 1 and 2 of
accompanying drawings.
3rd. In the construction of a wedge for securing rails, in railway chairs; which is
tightened by a bolt passing through end wise; substantially as illustrated, and discribed
in reference to figures 3, and 4: of the accompanying drawings.
4th. In the construction of a wedge for securing rails in railway chairs; in several
pieces, which when contracted in length by a bolt, adjustes itself to secure the rail in
the chair, and having a spring, or spring washer to make its self tightening, when
once adjusted, substantially as shown, and discribed in reference to figures 5 and 6 of
the accompanying drawings.