Year: 1887

page_text: Date of Application, 12th Aug., 1887
Complete Left, 14th May, 1888
Complete Accepted, 15th June, 1888
We JOSEPH KINCAID Civil Engineer and JOHN EDWARD WALLER Civil Engineer
both of 11 Great George Street in the City of Westminster do hereby declare the
nature of this Invention to be as follows:-
Our Invention has for its object to provide a chair or support for the cut crossings
of tramways which will admit of the crossing being arranged at any suitable angle
without the necessity of providing special supports to suit crossings arranged at
different angles.
According to my invention we provide a chair or casting with jaws or recesses:
(corresponding to the section of rail) to receive the contiguous ends of the cut or
divided rail a space being left between the ends of the said jaws or recesses to receive
the through rail which may be arranged at a right angle to the cut rails or at any
other suitable angle. The through rail may be secured to the cut rails by bolts passed
through the jaws of the chair and through the web of the cut rails into and through
the web of the through rail or the through rail may be fixed to the chair by separate
bolts if desired.
By this means the rails at the crossing are securely maintained in position without
the liability of their becoming displaced whilst the necessity for providing different
forms of casting to suit crossings of different angles is entirely obviated.
Dated this 12th day of August 1881.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,
Agents.

page_text: We JOSEPH KINCAID Civil Engineer and JOHN EDWARD WALLER Civil Engineer
both of 11 Great George Street in the City of Westminster do hereby declare the
nature of our said Invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :—
Our Invention has for its object to provide a chair or support (or fish) for the cut
crossings of Tramways which will admit of the crossing being arranged at any suitable
angle without the necessity of providing special supports to suit crossings arranged
at different angles.
We will describe our Invention with reference to the accompanying drawings.
According to this Invention we provide a chair or casting with jaws and recesses
of a shape in cross section to correspond with the shape in cross section of the
particular kind of rail with which it is to be used to receive the contiguous ends of
the cut or divided rail such rail being cut to the requisite angle in the ordinary manner
a space being left between the ends of the said jaws or recesses for the through rail
which space is of such an extent as to allow of the through rail being arranged at a
right angle to the cut rails or at any other angle thereto which the lines of rails are
required to take with respect to each other.
Figure 1 shews a plan of a right angle crossing and Figure 2 shews a skew
crossing wherein it is necessary to cut away or groove in the ordinary manner through
the top of the continuous rail to the level of the bottom of its groove in order to let
the flanges of the car wheels passing on the skew rails clear the continuous rails.
The cut rails are secured to the chair or support by means of wedges keys or bolts
for which holes are provided in the said chair or support at points marked e e in
Figures 3 and 4.
The through rail may be secured to the cut rails by bolts passed through the jaws of
the chair and through the web of the cut rails as shewn at a a Figure 2 and through
the web of the through rail or the through rail may be fixed to the chair by separate
bolts if desired.
Figure 3 is an elevation of the chair shewing the clearance for the right angle
crossing for the continuous rail at c and also the clearance for the same rail running
askew to the cut rail at d d. b b are the bolt holes.
Figure 5 is a transverse section taken on the line E F and Figure 6 is a transverse
section taken on the line C D (Figure 4).
By the hereinbefore described means the rails at the crossing are securely main-
tained in position without the liability of their becoming displaced, while the necessity
of providing different forms of castings to suit crossings of different angles is entirely
obviated.

page_text: Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The improvements in or for tramway crossings consisting of a support constructed
in the manner hereinbefore explained for receiving the rails of the crossing whatever
may be the angle of the two lines relatively to each other substantially as hereinbefore
described and illustrated by the accompanying drawings.
Dated this 14th day of May 1888.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,
Agents.