Improvements in Railway Chairs and Rail Joints.
Year: 1890

page_text: Date of Application, 6th May, 1890-Accepted, 14th June, 1890
COMPLETE SPECIFICATION.
Improvements in Railway Chairs and Rail Joints.
I, SYDNEY PITT of Sutton in the County of Surrey Gentleman (a communication
to me from abroad by George Adam Weber of the City County and State of New
York United States of America, Mechanical 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 :-
This Invention relates to a new and useful improvement upon the forms of joint
hitherto patented by me No. 7196 dated 30th April 1889.
By this improvement I am enabled to make my improved fish plate and chair of
less weight and more compact than in the form hitherto patented to me.
This Invention will be readily understood from the accompanying drawings, in
which :-
Figure 1 represents a cross-section through my chair and fish plate in position ;
and
Figure 2 a plan view of the chair, which is sometimes called a shoo.
A represents the rail, which may be of any form. The chair itself is shown at B,
and is made as shown of a width between the vertical portions adapted to fit exactly
the width of the flange of the rail. The fish plate blocks C and D are held against
the sides of the rail by bolts E in the same manner as in my previous Patonts; but the
plate or block D differs from the one in my previous Patents in that it is cut away
at the upper part so as to remove the bearing surface shown in the previous Patents.
The upper surface is by preference, though not essentially, cut at an angle so as to
drain away from the rail. The block D is likewise by preference provided with
packing C, as indicated in my Patent No. 7196-Under some circumstances I do
not make my chair exactly of the width of the flange of the rail, but in this case
provide a downwardly extending portion of the block D, as indicated in my Patent
No. 7196 but in this case I arrange that the width of the rail and of the downwardly
projecting portion of the block D shall exactly fill the space within the chair.
The chair itself is prevented from longitudinal motion or creeping by slots or
openings K K, one or more adapted to receive the head of a spike or bolt driven or
attached to a tie. These slots are by preference cut in the upturned shorter flange
of the chair, as indicated. I in this way reduce the weight and obviate the necessity
of the projecting jaws or lugs shown in my previous applications.
It is to be observed, moreover, that the chair or part B consists of a plate of
metal of substantially uniform thickness which is turned upward at the corners
into two substantially parallel plates or portions. The outer planes of these turned-
up portions do not fall within any projecting portion of the chair B. By this
structure the part B can be readily rolled or bent into shape, and I utilize the
upper surface of the shorter lip, as shown at K, to receive the bolt head not requiring
an extra projection at that side in order to hold down the chair. This 1 regard as
an important part of my Invention, enabling me to manufacture my chairs rapidly
and cheaply, and at the same time providing a receptacle for the bolt head in the
body of the chair itself rather than in some projecting portion thereof, which might
be readily broken, and which would in any event require an extra weight of metal,
which I avoid by my present structure.
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 :-
1. A chair for railroad rails, consisting of a flat bottom portion corresponding with
the hatta of the
and be untrened siden ARA
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page_text: than the other, the said upturned sides being substantially at right angles to the
bottom and no part of the chair projecting laterally beyond the exterior surfaces of
these upwardly projecting portions, the shorter of said sides being slotted for the
reception of a bolt or nail head or heads, substantially as described.
2. A chair for railroad rails, consisting of a flat bottom portion corresponding in
width with the bottom of the flange of the rail, and two upturned sides, one of
greater height than the other, the said upturned sides being substantially at right
angles to the bottom, and no part of the chair projecting laterally beyond the exterior
surfaces of these upwardly projecting portions, the higher of said sides being provided
with a bolt hold or holes for attaching said chair to the rail, substantially as
described.
3. The combination of the rail A, n chair B of equal width with the flange of the
rail, the fish plates or blocks CD, the block D being cut away below the surface of
the rail and provided with elastic filling G and the bolt E passing through the
blocks C 1) and the chair B, substantially as described.
4. A chair for railroad rails, consisting of a flat bottom portion corresponding with
the bottom of the flange of the rail, and two upturned sides, one of greater
height than the other," the said upturned sides being substantially at right
angles to the bottom, and no part of the chair projocting laterally beyond the
exterior surfaces of these upwardly projecting portions, the shorter of said sides being
slotted on its upper edge for the reception of a bolt or nail head or heads, substantially
as described.