A Means of Connecting Flexible or other Pipes to a Tap or Valve, Peculiarly Adapted to Railway Carriage Heating and other Purposes.
Year: 1893

page_text: Date of Application, 27th Mar., 1893
Complete Specification Left, 29th Sept., 1893-Accepted, 4th Nov., 1893
PROVISIONAL SPECIFICATION.
A Means of Connecting Flexible or other Pipes to a Tap or Valve,
Peculiarly Adapted to Railway Carriage Heating and other
Purposes.
THOMAS JOHN DAVIS, Engineer, 62, Sale Street, Rose Hill, Derby, in the
County of Derbyshire, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a new & useful improvement for a special coupling, for
quickly connecting a flexible or other pipe to a tap or valve & is peculiarly adapted
for coupling the same in connection with various systems of heating railway
carriages by either steam or hot water as well as for other purposes.
The movement is automatic
"That is to say "
that the flow through the tap or valve must be shut off before
the connection can be broken, & the said tap or valve must be opened when the
connection is made.
The utilizing of two or more inclined planes upon the tap or valve in the form of
wedges.
The employment of a loose collar shaped to fit over, or under, the said inclined
planes on tap or valve. The collar having a cone inserted attached to a flexible or
other pipe. The tap or valve being shaped to receive the cone.
The loose collar having four projecting pieces two on each side.
The loose collar & cone being placed in position on the tap or valve, two of the
projecting pieces are engaged with a projecting piece on the handle that opens or
shuts the tap or valve.
The handle being moved from a vertical towards a horizontal position causes the
loose collar to turn in a semicircular position & work over or under the said inclined
planes, at the same time forcing the cone into its position.
Thereby making a perfect steam & water tight joint & giving a free passage
through the tap or valve & the attachment thereto.
Dated this 10th day of May 1893.
THOMAS JOHN DAVIS.
COMPLETE SPECIFICATION.
A Means of Connecting Flexible or other Pipes to a Tap or Valve,
Peculiarly Adapted to Railway Carriage Heating and other
Purposes.
THOMAS JOHN DAVIS, Engineer 62, Sale Street Rose Hill Derby in the
County of Derbyshire 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, reference being had to the accompanying three
sheets of drawings and letters of reference marked thereon like parts being denoted
by similar letters on each drawing:
:-
My invention relates to a new and useful improvement for a special coupling for
quickly connecting a flexible or other pipe to a tap or valve and is peculiarly
adapted for coupling the same in connection with various systems of heating railway
carriages by either steam or hot water as well as for other purposes.
The movement is automatic
"That is to say " that the flow through the tap or valve must be shut off before
the connection can be broken and the said tap or valve must be opened when the
connection is made.

page_text: In carrying my invention into practical effect I form on the tap or valve a face
or surfaces A or two or more, which is or are inclined or at an angle with the centre
line of its length, and over or on the face of tap or valve A Ĭ fit a loose collar
Fig. 2 or part also provided with two or more inclined surfaces which fit against
and work on those which are on the tap or valve.
On this loose collar Fig. 2 1 form suitable projections or arms C. C. C. C. two or
more on each side, which when in position engage with a projecting arm D or part
on the handle, which opens or shuts the passage H through the tap or valve.
Preferably I use four projections or arms, on this loose collar, so as to obtain
quickness in coupling, as it does not matter which two are engaged with the projec-
tion D on the handle, which opens and shuts the tap or valve.
Into this loose collar a short pipe or tube Fig. 4 which has a coned end is
inserted, to the outside end of which the flexible or other tube is attached and on
placing this collar Fig. 2 with its cone Fig. 4 over the face of the tap and inclined
surfaces A and then moving the handle F, the projection D thereon presses on one
of the arms or projections C on the loose collar, Fig. 2 causing it to receive a
revolving movement, whereby the inclined surfaces work upon or against one
another producing a wedge action, thus drawing the cone Fig. 4 into its position G
producing thereby a perfectly steam and watertight joint, and securely fastening the
same, at the same time giving a free and uninterrupted passage H. through the tap
or valve.
The other end of the tap or valve J. may be made to fit a suitable size of pipe,
and if desired may be of a bent form as shown, to allow of the draining of the pipes
such form being more convenient for railway carriage heating.
By this peculiar construction, combination and arrangement of the various parts,
I obtain an efficient and simple steam and watertight joint, which can be quickly
made and unmade without trouble.

page_text: Fig. 8. is a horizontal section through the tap, and connections J. shows the bent
form of the other end of tap as herein before described.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I desire to state, that I
do not claim as of my invention any of the parts individually as new, as the same
are known and have been used before, but what I do claim is
1. The arrangement and combination of the parts, forming the tap or valve, new,
for heating railway carriages and other purposes acting in the manner and for the
purposes hereinbefore described and as shown in the accompanying three sheets of
drawings, or any mere modification of the same.
The combination for heating railway carriages and in other applications, a tap or
valve having two or more inclined surfaces in the form of wedges upon its face as
described and shown in the accompanying drawings.
The combination for beating railway carriages and in other applications a loose
collar shaped to fit easily over the face of tap, and inclined planes or surfaces,
as shown, the said loose collar also having inclined planes or surfaces as
described to correspond with face of tap or valve, the said loose collar having
four projecting arms which when in a horizontal position are turned by the
projecting arm which is part of the handle for opening and shutting the passage
through the tap, which causes the inclined planes or surfaces to work upon each
other thereby causing the cone to be drawn into its position, at the same time
making a perfect steam and watertight joint and giving a free and uninterrupted
passage through the tap and its connections.
Dated this 29th day of September 1893.
THOMAS JOHN DAVIS.