Improvements in Steam Joints for Rotary Pipes and Hollow Shafting.
Year: 1892

page_text: e of Application, 23rd July, 1892-Accepted, 27th Aug., 1892
COMPLETE SPECIFICATION.
Improvements in Steam Joints for Rotary Pipes and Hollow
Shafting.
We, JOHN BRAINERD MORGAN Town of Rockland,
Massachusetts
Manufacturer, and HORATIO ADAMS of 40 Water Street in the City of Boston
Massachusetts, Accountant both in the United States of America 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:-
My invention relates especially to joints for conveying steam to rotary or
oscillating machinery, and it consists in certain novel features hereinafter fully
set forth the object being to produce a simpler, cheaper and more effective device
of this character than is now in ordinary use.
The nature and operation of the improvement will be readily understood by all
conversant with such matters from the following explanation.
In the accompanying drawings
Figure 1 is a vertical longitudinal section of my improved joint.
Figure 2 is an elevation showing the head-locking mechanism.
Figure 3 is a vertical longitudinal section and
Figure 4 an elevation showing modifications in the manner of mounting the
shaft.
Like letters and numerals of reference indicate corresponding parts in the
different figures of the drawing.
A represents the body of the joint, which comprises a cylinder b, provided with
a supply-port d and having one end closed by a solid head g. The opposite end of
the cylinder is interiorly and exteriorly screw-threaded, as shown in Figure 1.
An exteriorly threaded nut is turned into the cylinder and secured by a pin g.
A packing ring is disposed against the outer face of said nut.
The rotary pipe or shaft B is provided on its end with an annular flange i, fitted
to enter the cylinder-mouth and engage the packing h. A packing-ring is disposed
around the pipe outside said flange. A flanged or hubbed follower ring & encircles
the pipe outside the packing. A screw cap C, through which pipe B passes, is
turned onto the cylinder. A washer m is disposed within the cap and a push-
spring p coiled around the pipe is interposed between said washer and the
follower k. The edge of the cap C is toothed or spurred at q, and a weighted
locking-pawl, pivoted on the cylinder, engages said teeth and prevents the cap
from working off from the cylinder. Steam entering the port d passes from the
cylinder t through the pipe B, the nut packing and spring-pushed follower forming
a steam-tight joint for said pipe, while permitting it freely to rotate.
む
In Figure 3 the pipe is extended through the cylinder head g. The inner end of
the pipe is solid at and a port win the pipe wall admits steam from the
chamber t. The solid end of the pipe is tapped centrally to receive the screw x
of a head D, packing y being interposed between said screw-head and the cylinder
head 9. A series of notches or sockets 2 are formed in the pipe end v. A sliding
pin 15, passing through the head D, may enter said sockets and lock said head.
Said pin is secured by a set-screw 16.
In Figure 4 the pipe is shown provided with two flanges and is designed to
convey steam in both directions from the cylinder. When this form is used the
cylinder head g, nuts and packing ring may be dispensed with a screw-cap C
and spring-pushed follower being employed at both ends of the cylinder.
h

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 :-
1. In a joint for rotary steam shaft or pipe, a cylinder provided with a supply
port, in combination with a pipe having an annular flange, a screw-cap on said
cylinder packing, and a spring-pushed follower bearing against said flange,
substantially as described.
2. In a device of the character described, a cylinder closed at one end and
provided with a supply-port, a nut secured in the opposite cylinder end, a rotary
pipe having an annular flange for entering said cylinder, packing for said flange, a
screw cap for closing said cylinder and a spring-pushed follower engaging said
packing substantially as described.
3. In a device of the character described the cylinder b, having the port d
and head g in combination with the flanged pipe fitted to rotate therein, the nut
packing and spring-pushed follower, and the screw-cap C, all being arranged to
operate substantially as described.
4. The cylinder serrated screw-cap and locking mechanism, in combination with
the flanged rotary pipe and mechanism for packing it in said cylinder substantially
as described.
5. The steam cylinder and serrated cap closing an end thereof, in combination
with locking mechanism for said cap, the flanged pipe B, fitted to rotate in said
cylinder, a nut secured in said cylinder packing for said pipe and a spring-pushed
follower disposed between said packing and cap substantially as described.
6. The cylinder, in combination with the flanged pipe B, fitted to rotate therein
and provided with port we opening into the cylinder and the tapped and socketed
head the screw-head D and mechanism for locking it to the pipe-head the cap Con
the cylinder and locking mechanism therefor, packing for said pipe, and the
spring-pushed follower interposed between said cap and packing substantially as
described.
7. The combination of the cylinder A with the pipe B having the flange i the
screw-cap C and locking mechanism, the nut f packing rings hj and the spring
pushed follower k, all being arranged to operate substantially as described.
Dated this 22nd day of July 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.