Improvements in and connected with Railway and Tramway Chairs.
Year: 1892

page_text: Date of Application, 8th Apr., 1892-Accepted, 28th May, 1892
COMPLETE SPECIFICATION.
Improvements in and connected with Railway and Tramway Chairs.
JOHN LAMBERT 4 Elcot Avenue Commercial Road Peckham S.E. 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:
The chair with both sliding heads connected with the rail or metal in the chair
is shewn in Figure 1.
A is the railway or tramway chair in which one or both heads slide in the chair
so that they clip the rail or metal and secure it in its place by a cotter or cotters
securing them in the chair, should the chair be out of line, by slacking the cotters
the rail or metal can be shifted without shifting the chair.
B is the sliding head which fits in two sides of chair, and when placed up to the
rail or metal, caunot move in front of the sliding heads B, there is a clip or
projecting piece marked D which slides in the groove C in the centre of the chair
which prevents the head from moving.
Figure 2 shews but one sliding head to secure the rail or metal.
E is the cotter way which is cast through the chair, and the sliding head to
receive the cotter marked G.
F is the rail or metal in its position before the head is fixed in its place, shewing
the steady pin or pins H which pass through the rail or metal into the opposite
head to secure the end of each rail or metal in its place.
To take the rail or metal out or to turn the bottom side up when the top side
has become worn, or to put a new rail or metal in its place, you drive out the
cotters marked G when the head or heads can be pulled back which will then set
the rails or metals at liberty, and which does away with plates, wedges, and bolts.
To secure the rails or metals there are two strong steady pins H which are fixed in
the sliding head, one of them passing through the end of each rail or metal into
the opposite head which prevents them from shifting from their places.
By this means a rail or metal can be taken out and a new one substituted on any
portion of the line in a few minutes without in any way disturbing the chairs.
If a piece of rubber sheeting, canvas leather or other soft material be placed in
the chair so as to clip the rail or metal before the cotters are driven in, it will stop
all jarring and deaden the noise in a great measure by keeping the metals apart
from each other.
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 1
claim is
1. The way in which the rails or metals are secured in the railway or tramway
chairs by the formation of the sliding head or heads, and the steady pins H which
pass through them to connect the rails or metals in the chairs.
2. The way the cotter or cotters secure the heads when the rails or metals are in
the chairs.
3. The clip in the front of the sliding head or heads for the better security of the
heads, and the rails or metals when in the chairs.
Dated this Sixth day of April 1892.
JOHN LAMBERT.