An Improved Packing Device for Telescopic Joints for Water Pipes.
Year: 1895

page_text: Date of Application, 25th July, 1895-Accepted, 31st Aug.,
1895
COMPLETE SPECIFICATION.
An Improved Packing Device for Telescopic Joints for Water
Pipes.
I, JOSEF Szász, of Györ, Hungary, in the Empire of Austria Hungary, Chief
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 an improved packing device for telescopic joints for
water pipes and is chiefly intended for application to the feed pipe between a
locomotive and its tender.
India rubber is at the present time considered to be the best packing material for
use in the telescopic joint of feed water pipes between a locomotive and its tender,
but the cost of maintenance of such joints is very high due largely to the rapid
wear of the pipe socket.
This disadvantage presents itself likewise in case where wooden rings or
washers are used, which have moreover to be replaced after a comparatively short
period of time.
These disadvantages not only entail great expense but also involve the necessity
that the locomotives must be laid by for a comparatively long period.
The object of the present invention is to avoid these disadvantages by using an
adjustable metal washer packing device, illustrated in the accompanying drawing
and hereinafter described.
In the said drawing A is the water feed pipe, B, the socket in which the pipe A
can slide.
Onto the pipe A a metal pipe C is hard-soldered. The joint between the metal
pipe C and the socket B is effected by means of two metal rings or washers D, E
and the hemp F which is soaked with hot liquefied tallow; the hemp may be
replaced by some other suitable soft packing material.
The washer D is screwed on to the pipe C and secured in position by a locking
bolt G.
The washer E is forced towards the washer D by means of the pipe H and the
screw nut and thus a reliable joint is obtained by pressing the hemp wound
or placed between the packing washers, against the lateral wall of the socket B.
The said metal washers D, E are constructed so as not to directly touch the
interior wall of the socket B but so as to rest with their nearly sharp edges upon
the hemp packing F, so that the water feed pipe A can yield laterally to and follow
the movements occurring during the working of the engine without the packing
thereby suffering any injury. Owing to this fact the feed water pipe is prevented
from becoming rapidly worn. The nut is screwed upon a tubular piece K
soldered on to the feed pipe A and is locked by means of a lock nut L. The extent
of movement of the washer E is limited by the projection or flange M of the
tubular piece K. This limitation is necessary in order to prevent unskilled
workmen when mounting the packing device-from separating the metal washers D
and E beyond the proper distance and from inserting more hemp than is necessary
for securing a reliable joint.
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 :-
An improved adjustable metal washer packing device for coupling the feed pipe

page_text: between a locomotive and its tender, and for similar purposes the characteristic
features being metal rings or washers D and E, one of which is screwed on to the
rigid pipe C and the other of which is adjustable by means of a pipe H and nut I
the latter working on a tubular piece K and being secured in position by means of
a lock nut L; the action being such that by forcing the metal rings or washers D, E
toward one another, the hemp or other suitable packing material placed between
the said washers is pressed against the interior wall of the socket B, and thus
secures a tight packing.
Dated this 25th day of July 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.