Improvements in Safety Gas Cocks.
Year: 1892

page_text: Date of Application, 26th Apr., 1892-Accepted, 25th June, 1892
COMPLETE SPECIFICATION.
Improvements in Safety Gas Cocks.
1, JOSEPH CLARK, of 402 Montgomery Street, San Francisco, in the State
of California, United States of America, Gentleman, 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 certain new and useful improvements in safety gas
cocks, of that class in which provision is made for the automatic locking of the
cock when turned to shut off the flow of gas, so as to provide against accidental
carrying of the key beyond its line of centre in either direction and consequent
escape of gas, thereby saving loss of life by asphyxiation.
The present invention has for its objects, among others, to provide an improved
construction in which there is an actuated catch in contradistinction to a stop lug
and pin, which shall be movable from the body of the cock-plug toward the body of
the cock and engage the inner wall thereof. The catch is preferably spring-
actuated and the parts are so arranged as to be readily assembled, not liable to
derangement, and positive in their action. When the cock is turned, the catch is
sure to operate at the proper time and the cock cannot be turned until the
catch has been disengaged, which cannot be done accidentally. The parts being
arranged, so that the catch engages the inner wall, guards against accidental
moving of the same.
Other objects and advantages of the invention will hereinafter appear, and the
novel features thereof will be specifically defined by the appended claims.
The invention is clearly illustrated in the accompanying sheet of drawings,
which, with the letters of reference marked thereon, forms a part of this
Specification, and in which
Figure 1 is a side elevation of my improvement.
Figure 2 is a view at right angles to Figure 1, with a portion broken away.
Figure 3 is a detail view of the turn-key, or plug detached.
Figure 4 is a longitudinal section of the same, showing a modification.
Figure 5 is a view of the turn-key or plug, with the catch removed.
Figure 6 is a bottom plan with the key or plug removed, showing the notch or
groove in the wall of the body of the cock.
Figure 7 is a longitudinal section of a turn-key or plug, with a modified form
of catch.
Figure 8 is a similar view of still another form.
Like letters of reference indicate like parts throughout the several views.
The
Referring now to the details of the drawings by letter, A designates the ordinary
cock, which is provided with the opening a, within which the turn-key or plug is
adapted to be rotatably held, the key or plug being provided with the passage-
way a', which, when in one position, permits the flow of gas, and when in a position
at right angles to the first-mentioned position, shuts off the flow of gas.
body A of the cock is of known, or any approved form of construction, except that
the wall of the opening a is provided with a longitudinally-disposed groove or
opening a², as seen best in Figure 6, which opening or groove should correspond to
the form of catch employed, and may be tapered as seen in Figure 2, or otherwise,
as may be found most expedient.
The turn-key or plug B is provided with a catch, which in its various modi-
fications is lettered B₁; in Figure 2 it is shown in position, and in section. in
"
1

page_text: in its manipulation. It is normally held outward by the aid of a spring, which
may be of the form shown in full lines in Figure 4, with one end held within the
chamber, as for instance by being inserted in a kerf or slit therein, as shown, with
the other end resting or acting against the inner face of the catch near its free end,
as shown; or the spring may be of the form shown in dotted lines in said
Figure 4, with the inner end scated in a notch or kerf in the inner face and end of
the catch, and the outer end unconfined and working upon the wall of the
plug or key.
In Figure 3 is shown a coiled spring, acting upon the free end of the catch, with
its other end bearing against the thumb piece of the plug.
In Figure 8 the catch is shown as unpivoted, it being held in place by the
spring D, which has one end held in a notch d in the plug and its other end held in
a kerf or groove in the inner end of the catch.
In Figure 7 is shown a modification, wherein the spring and catch are formed of
one and the same piece of spring material, the one end being held in a notch or
groove in the plug and the other end serving as the catch and means for operating
the same, the material being bent near its centre, as shown at e and seated in a
correspondingly-shaped recess in the inner end of the chamber of the plug.
Where necessary the plug is formed with a groove or channel for the proper
working of the catch; such a groove is seen in Figure 5.
The plug is held in the body of the cock in any preferred manner, as for instance
by the usual nut and washer, as seen in Figures 1 and 2, the smaller end of the
plug having a screw-threaded opening as seen in Figures 4, 7 and 8, for the reception
of the screw-threaded shank of the securing means.
In all of the forms shown, the operation is substantially the same, the different
constructions being illustrated to show how the invention may be embodied in
practical forms without departing from the essential feature of the same.
In operation, as the plug must be turned to shut off the gas, when the said plug
is turned the catch must engage in the groove or passage in the inner wall of the
opening in the body of the cock, as seen in Figure 2, and thus shut off the flow of
gas. In order to turn on the gas it is necessary to press upon the outer end or
thumb piece of the catch, so as to free the catch from the groove in the opening
of the cock and then the plug will be free to be turned. The catch acts
automatically and positively; the plug cannot be turned past the determined point,
nor can it be turned after the gas has been shut off, without pressing on the outer
end of the catch sufficiently to disengage the catch from the opening with which
it engages, so that accidental turning of the plug farther than is necessary to turn
off the gas is prevented.
The coiled spring may be arranged within the body of the plug as shown in
dotted lines in Figure 3. Where the catch and spring are of one integral piece,
instead of being of the form shown in full lines in Figure 7, it may be of the form
shown in Figure 7, in dotted lines, the catch and spring being confined at one end
in any suitable manner in the body of the plug, the outer end operating in
substantially the same manner as the form shown in full lines.
I may sometimes provide a lug or lugs g, on the end of the body of the cock, as
seen in Figure 6, against which a projecting part, as a lug g¹ on the plug, will
engage to serve as a supplemental stop, to prevent the turning of the plug in the
wrong direction to shut off the flow of gas.
Other modifications in detail may be resorted to without departing from the
spirit of the invention or sacrificing any of its advantages.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that
what I claim is :—
1. A safety gas cock constructed and operating substantially as herein described.
A was cook provided with a locking catch arranged at the side of the plug
D

page_text: and yieldingly removable from and into contact with the body of the plug to lock
the plug in a closed and in an open position.
Dated this 26th day of April 1892.
AMBROSE MYALL,
21, Cockspur Street, London, S.W., Agent for the Applicant.

page_text: Date of Application, 26th Apr., 1892-Accepted, 28th May, 1892
COMPLETE SPECIFICATION.
Improvements in Traps for Sewers or Drains.
We, AUGUST BUDDE and ALEXANDER BUDDE, both of 56 Oranienstrasse
Berlin in the German Empire, Manufacturers, 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 traps for the entrances to drains and sewers and its
object is to prevent the exit of air or gas from the sewer without obstructing the
passage through the trap.
In the traps generally in use, gases which arise from fermentation of materials
in the trap itself have been free to escape and this nuisance has been especially
great if any length of time elapse between the operations of flushing the trap.
Again too, owing to an imperfect head of water in the trap the escape of gases
from the sewer has not been prevented.
With the object of overcoming these defects we construct our improved trap as
illustrated by the accompanying drawing.
The upper or inlet part A of the trap extends in the form of a tube R to a short
distance below the water level. Directly below the bottom of the tube is arranged
a cone K at a sufficient distance from the tube to allow of the passage of any solid
matters which may have to pass through the trap.
By the use of the cone K any gases which may form in the fluid Ware prevented
from escaping by the tube R and are directed into the annular space S surrounding
it. No great pressure can be attained by the accumulated gases as the annular
space S is connected to the branch T on the sewer side of the trap by a small
Pipe L.
The cone K is preferably arranged so as to form the upper part of the cover Z
of the cleaning hole. This arrangement ensures that the cone together with the
cover is replaced in its proper position after the trap has been cleaned.
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,
A trap for sewers or drains having therein a tubular extension R, a cone K, an
annular space S, and a brauch pipe L connecting the annular space with the sewer
or drain, constructed and arranged substantially as and for the purpose hereinbefore
described and as illustrated by the accompanying drawings.
Dated this 25th day of April A.D. 1892.
WILLIAM E. HEYS,
Agent for the Applicants.