Year: 1894

page_text: I, GEORGE FOWLER, of 36 High Street, St. John's Wood, in the County of
London, Brass Manufacturer, do hereby declare the nature of this invention to be
as follows:-
This invention refers more particularly to that type of cocks or taps and valves
wherein the spindles are externally screw-threaded and directly carry at their
terminal ends the valves or "jumpers" which latter are either lifted from or closed
onto their seatings by the rotation, and consequent lifting or lowering, of the
screwed spindles working in the valve cover. In this most convenient form and
construction of such valves it is necessary to make the screw thread upon the valve
spindle of such a pitch that the pressure upon the valve will not rotate the spindle,
and that sufficient force may conveniently be brought to bear upon the valve proper,
and it is therefore common with such cocks as usually constructed that the spindle
should be given a number of turns in order to properly open and close the valve.
Now the object of my invention, while still retaining the now generally approved
form and principle of construction of the screw cock, is to effect such improvements
therein that the rise of the valve from its seating is effected at a quicker rate of
speed than the rise of the screwed spindle, and consequently the latter would be
turned a less number of times and yet produce perfect action, whereby the time
occupied in operating the tap would be lessened, the liquid would be cut off
without so much waste, and the valve would be subjected to less wear and tear.
According to my invention I form the valve spindle externally with a screw
thread of comparatively slow pitch, such spindle passing through the cover and
gland as usual in such cocks, while the screw of the spindle takes into a thread
in the cover; I drill out the lower end of the screwed spindle and I form an
internal thread therein in an opposite direction to the external thread upon the
spindle and of a quicker or greater pitch. The valve proper or "jumper" has a
spindle threaded to take into the internal thread of the inain spindle, and the valve
is also formed with lateral wings which take against studs, brackets or other fixeil
guides by which rotation of the valve is prevented. I generally form the screwed
spindle of the valve with two threads.
By my invention the construction of a cock having a comparatively quickly
operating valve and a slowly moving spindle is simplified and applied in an
advantageous and cheaply manufactured form to a generally accepted and approved
form of cock.
Dated this 17th day of November 1901
BREWER & SON,
London and Leeds, Agents for Applicant.

page_text: таро аци
I, GEORGE FOWLER, of 36, High Street, St. John's Wood, in the County of
London, Brass 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:-
This invention refers more particularly to that type of cocks or taps and valves
wherein the spindles are externally screw-threaded and directly carry at their
terminal ends the valves or "jumpers," which latter are either lifted from or closed
on to their seatings by the rotation and consequent lifting, or lowering, of the
screwed spindles working in the valve cover.
In this most convenient form and construction of such valves it is necessary to
make the screw thread upon the valve spindle, of such a pitch, that the pressure
upon the valve will not rotate the spindle, and that sufficient force may conveniently
be brought to bear upon the valve proper, and it is therefore common with such
cocks, as usually constructed, that the spindle should be given a number of turns,
in order to properly open and close the valve.
Now the object of my invention, while still retaining the now generally approved
form and principle of construction of the screw cock, is to effect such improvements
therein, that the rise of the valve from its seating, is effected at a quicker rate of
speed, than the rise of the screwed spindle, and consequently the latter would be
turned a less number of times, and yet produce perfect action, whereby the time
occupied in operating the tap would be lessened, the liquid would be cut off without
so much waste, and the valve would be subjected to less wear and tear.
My invention will be readily understood by the following description referring
to the accompanying drawings,
Figure 1 being a sectional elevation of a cock or tap constructed according to
my said invention. Figure 2 a central transverse section of same, and
Figure 3 a perspective view of the valve or jumper detached.
Similar letters of reference refer to like parts in all the figures.
According to my invention, I form the valve spindle A externally with a screw
thread A', of comparatively slow pitch, such spindle A passing through the cover B,
and gland C, as usual in such cocks, while the screw A' of the spindle A takes
into a thread in the said cover B; I drill out the lower end of the screwed spindle A,
and I form an internal thread or internal threads A2, Fig. 1, therein in an opposite
direction to the external thread A¹ upon the spindle A, and of a quicker or greater
pitch. The valve proper or "jumper" D, has a spindle D', threaded to take into
the internal thread A2 of the main spindle, and the valve D is also formed with
lateral wings D³, which take against studs, brackets, or other fixed guides E,
Fig. 2, by which rotation of the valve D is prevented. I generally form the
screwed spindle of the valve with two or more threads.
By my invention, the construction of a cock, having a comparatively quickly
operating valve, and a slowly moving spindle, is simplified, and applied in an
advantageous, and cheaply manufactured form, to a generally accepted and approved
form of cock, and the valve is lowered, forced, and held, to its seating, with
considerable mechanical advantage, as compared with screwed valves of ordinary
construction.
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 cocks, taps, and valves, the combination of the externally screwed spindle A,
operating in the fixed casing or cover, and formed with the internal thread A² of

page_text: quicker or greater pitch, with the valve or "jumper" D, with its fixed spindle D',
threaded oppositely to the exterior thread of spindle A, and adapted to take into
the internal thread A2 of said latter spindle, together with the fixed guides E for
the jumper D, constructed and acting substantially as and for the purposes
set forth.
2. The general combination and arrangement of cocks, taps and valves, all
constructed and acting substantially as described and illustrated with reference to
the accompanying drawings.
D
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