Improvements in Gas Joints.
Year: 1894

page_text: Date of Application, 20th Feb., 1894
Complete Specification Left, 20th Nov., 1894-Accepted, 12th Jan., 1895
PROVISIONAL SPECIFICATION.
Improvements in Gas Joints.
I, ROBERT HALL BEST of Cambray Works, Handsworth, in the County of
Stafford, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is
To produce improved gas joints for swivels or taps which shall with use wear
for themselves new bearings and so remain gas tight.
'
It is applicable more particularly to pendants known as Surprise" pendants,
but it is also applicable to gas chandeliers, brackets and gas fittings generally.
Hitherto the plugs of these joints have been adjusted to the requisite tightness
by means of screws and washers which in time require re-adjustment.
My invention consists, firstly, in the employment of a spring, and washer,
flanged drum, and set screw or pin, instead of a screw, and washer, and secondly
in the methods by which the spring is enabled to accomplish its object by
lengthening the plug and screwing the same, by next passing a washer over the
screw, by screwing on a drum with a flange on the end furthest away from the
barrel, on this drum is a spiral spring which takes its bearing against the flange
at one end and against the washer at the other end.. In this drum is a set screw
or pin to keep the drum from turning when fixed in position. This arrangement
allows the washer to be tightened to any degree by the drum while the spring
afterwards pushes against the washer and keeps the barrel up to its bearing in
case of wear.
Dated this 19th day of February 1901
Improvements in Gas Joints.
I, ROBERT HALL BEST, of Cambray Works Handsworth Birmingham,
Manufacturer, 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:-
The object of my invention is,
To produce improved gas joints for swivels or taps which shall with use wear
for themselves new bearings and so remain gas tight.
It is applicable more particularly to pendants known as "Surprise" pendants
1ut it is also applicable to gas chandeliers, brackets and gas fittings generally.
Hitherto the plugs of these joints have been adjusted to the requisite tightness
by means of screws and washers which in time require readjustment.
My invention consists firstly:-In the employment of a spring and washer
flanged drum and set screw or pin, instead of a screw and washer, and secondly
in the methods by which the spring is enabled to accomplish its object.
I use a lengthened plug with screw formed or soldered on same pass a washer
over the screw, screw on a drun with a flange on the end outside the barrel; on
[Price 8d.1

page_text: this drum I place a spiral spring which takes its bearing against the flange at one
end and against the washer at the other end. In the drum is a set screw or pin
to keep the drum from turning when fixed in position.
This arrangement allows the washer to be tightened to any degree by the drum
while the spring (which only requires to be a light one for the purpose) pushes
against the washer and keeps the barrel up to its bearing in case of wear.
The object of the spring being made light in character is especially to adapt it
to the requirements of "Surprise" pendants which require to be fitted with perfect
gas tight joints but with the minimum of friction.
Referring to the drawings accompanying this Specification:--
Fig. 1 is an elevation of a gas joint and Fig. 2 a sectional view of the same.
(a) is the plug with screw end (a), (c) is the washer passed over the screw end
and bearing against the barrel (b), (d) is the drum or screw nut to keep the
washer in place, and (e) the set screw to prevent the drum turning when fixed in
position. (f) is the spring bearing with one end against the flange (i) on the
drum (d) and the other end against the washer (c) and pressing it gently up to its
bearing and keeping it so, even if affected by wear.
The same result may be obtained by making the drum of a larger diameter and
placing a spring inside it bearing against the washer instead of using the outside
spring () as shewn on the drawings.
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 1
claim is: :-
1. In the construction of gas joints for swivels or taps the combination of the
parts consisting of the washer (c), drum (d), set screw (e), and spring (f) for the
purposes and substantially as set forth and described,
2. The alternative combination in which the spring is placed within the drum.
3. In the construction of gas joints for swivels or taps the placing of the screw
nut or drum and spring or their equivalents at the taper end of the plug.
4. The use of the light spring in gas joints for the purpose of compensating for
the wear of the joint without materially adding to the friction of the parts.
Dated this 19th day of November 1894.
HENRY F. TALBOT,
7, Cherry Street, Birmingham, Agent for the Applicant.