Improvements in Railway Buffers.
Year: 1894

page_text: Date of Application, 25th June, 1894
Complete Specification Left, 25th Mar., 1895-Accepted, 25th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Railway Buffers.
TOM LATHAM of 81. Eldon Street Sheffield in the County of York Engineer,
and WALTER LATHAM of 186 Solly Street Sheffield aforesaid Silversmith, do
heroby declare the nature of this invention to. be as follows:-
This invention is applicable to what are known as solid rod buffers and relates to
the formation of a flanged collar, on the continuation of the sliding part or plunger as
shown in Specification No. 12433, A.D. 1888, which is to transmit the pressure on
the buffer to the spring, and to prevent the escape of the plunger from the buffer
case.
In the construction of buffers having solid rods and conical cases, we contract,
screw, or attach by other mechanical or physical means, a detachable collar to the
reduced or tail end of the plunger, which part is here left a little larger for that
purpose. The smaller part of the afore mentioned collar is coincident with the largest
diameter of the plunger rod, the flange being at the inner end.
Thus an increased bearing surface is obtained for the parts in contact, without
detracting from the length of spring or from the range of action of the buffer; or
altering present sizes of springs or tail ends of rods.
Dated this 23rd day of June 1894.
TOM LATHAM.
WALTER LATHAM.
Improvements in railway Duners.
TOM LATHAM 81 Eldon Street Sheffield, in the County of York, Engineer and
WALTER LATHAM 186 Solly Street Sheffield in the County of York Silversmith
do hereby declare the nature of this invention and in what manner the same is to
be perforined, to be particularly described and ascertained in and by the following
statement:-
This invention is applicable to buffers having solid rods and conical cases
and consists of the formation and application of a detachable flanged collar
which is attached by contraction, (as shown in Fig. 1) screwing (as shown
in Fig. 2.) or any other mechanical means, to the reduced, or shank end of the
plunger rod.
The smaller part of this collar is coincident with the diametrically largest
part of the plunger rod the flange being at the inner end, as shown at A in the
figures.
The attachment of this collar can be applied in the following ways:-
(1) The collar to be made of such diametrical dimensions as to allow the first
coil of the buffer spring to act upon the said collar only.
(2) To allow the said coil to act upon a shoulder formed by suitably differential
diameters of the plunger rod. (In this case the increased part B is left still larger
as explained above.
(3) To allow the said collar to act partly on the aforementioned shoulder and
partly on the collar.

page_text: Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
In solid rad buffers, the employment of a peculiarly shaped detachable collar:
as heriubefore described and shown in the figures; the object of which is to
economise space in the line of action of the said buffers.
Dated this 23rd day of March 1895.
TOM LATHAM.
WALTER LATHAM.