Improvements in Pipe Couplings for Air or Vacuum Brakes and other Analogous Purposes.
Year: 1890

page_text: Date of Application, 13th Oct., 1890
Complete Specification Left, 20th June, 1891-Accepted, 25th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in Pipe Couplings for Air or Vacuum Brakes and
other Analogous Purposes.
BOLESLAS EDWARD POPOWSKI of 8 Chobham Road Stratford in the County
of Essex England Engineer do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in the train pipe couplings used on
railway engines, tenders, carriages or any other vehicle which are fitted with
continuous brakes.
It consists in making of metal those parts of the said train pipes which extend
from carriage to carriage or vehicle to vehicle to form the coupling.
To obtain this one or more ball and socket joints or elbows (packed with asbestos
packing) are used.
This invention is equally effectual with steam, gas or fluids and may be used
wherever a flexible hose is required.
1
1000
COMPLETE SPECIFICATION.
Improvements in Pipe Couplings for Air or Vacuum Brakes and
other Analogous Purposes.
I, BOLESLAS EDWARD POPOWSKI of 8 Chobham Road, Stratford in the
County of Essex, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement :-
This invention has for its object improvements in pipe couplings for air or vacuum
brakes and other analogous purposes.
According thereto, the train pipe couplings used on railway engines, tenders,
carriages, or any other railway vehicles fitted with continuous brakes, are constructed
as hereinafter described with reference to and illustrated in the drawings hereunto
annexed; those parts of the train pipe which extend from carriage to carriage or
vehicle to vehicle to form the coupling being made of metal, and ball-and-socket
joints packed with asbestos packing being used as I will hereinafter explain.
Couplings according to my invention can be used for various purposes in lieu of
flexible hose.
The accompanying drawings shew one half of a train pipe coupling constructed
according to iny invention.
Fig. 1 being an underside view, and
Fig. 2 an elevation partly in central vertical section.
A is an elbow pipe adapted to be attached to the train pipe of a vehicle, B and C
are two other elbow pipes, and D is a straight pipe that connects B and C. E is an
elbow pipe; F is a coupling piece adapted to be engaged with and secured to
another coupling piece (not shown) connected to the train pipe of another vehicle.
G is a pipe that connects E and F. The elbow pipes A and B are connected
together by a ball-and-socket joint constructed as hereinafter described, and the
elbow pipes C and E are similarly connected together by another ball-and-socket
joint of the same construction, which will be readily understood from the following
description, reference being had to the drawings, and particularly to the sectional
.Jl

page_text: view in Fig. 2 of the ball-and-socket joint that connects together the elbow pipes C
and E.
The adjacent extremities of the elbow pipes are formed with enlargements adapted
to fit one within the other after the manner of a ball-and-socket joint.
The enlargement a of the elbow pipe C is partly of spherical form internally_and
serves as the socket to receive the enlargement, or hollow part-ball 6 of the elbow
pipe E. The extension a' of the enlargement a is of hollow cylindrical form with an
external screw-thread. The extension forms a stuffing box of which c is the gland;
this gland is made with an internal screw-thread adapted to screw on to the said
extension and with an inwardly projecting annular lip d, which serves to confine the
asbestos packing in the space between the said lip, the stuffing box wall, and the
part-ball b. The packing is compressed by screwing the gland c on to the extension a¹
and leakage out of or into the brake apparatus is thus prevented.
Lubrication of the parts is effected, and dust excluded, by means of annular
pieces of cloth e impregnated with suitable lubricant and clamped between the
annular metal pieces or washers. These parts are held between the lip d of the gland c
and the lip of an internally threaded cap ring which is screwed upon a
correspondingly threaded part of the exterior of the gland c. The external
diameter of the pieces ef, is less than the internal diameter of the cap ring so as
to allow play of the elbow pipes, against one of which they bear as shown.
Suitable projections i, j, are provided on the exteriors of the gland c and cap
ring to enable them to be screwed up or unscrewed as may be necessary, these
projections being kept in register and the parts locked together normally by a key /
placed in the space between two corresponding pairs of the projections and held in
this position by the screw m.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that I
do not claim broadly the construction of pipe couplings in which ball-and-socket
joints are introduced but what I claim is :-
My improved pipe coupling with ball-and-socket joints, packing, lubricating and
dust excluding parts, constructed, combined, and arranged as hereinabove described
with reference to, and shown in, the drawings hereunto annexed.
Dated this 18th day of Tune 1801
W. Lloyd Wisc,
B. E. POPOWSKI.
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.