Improvements in Valve Cocks to be used for Steam, Water, or any Liquid.
Year: 1893

page_text: Date of Application, 2nd Dec., 1893
Complete Specification Left, 17th Jan., 1894-Accepted, 21st Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in Valve Cocks to be used for Steam, Water, or
any Liquid.
ROBERT LOW Albert House Nethergate Dundee Forfarshire Engineer do
hereby declare the nature of this invention to be as follows:-
--
I cast the body of valves & stuffing box all in one casting thereby avoiding the
trouble & annoyance so often caused by loose or cast separate stuffing boxes in
having the screws made too slack thus making the valves more substantial &
useful.
Dated this First day of December 1893.
COMPLETE SPECIFICATION.
Improvements in Valve Cocks to be used for Steam, Water, or
any Liquid.
I, ROBERT Low, of Albert House, Nethergate, Dundee, in the County of
Forfar, Scotland, 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:—
I cast the body of valves and stuffing boxes all in one casting thereby avoiding
the trouble and annoyance so often caused by loose or cast separate stuffing boxes
in having the screws made too slack, thus making the valves more substantial and
useful.
The description of my improvements is assisted by a sheet of explanatory
drawings, hereunto appended and hereinafter referred to.
Figure 1. is a section at B. B. (Figure 2.);
Figure 2. a plan;
Figure 3. a section at A. A. (Figure 1.);
Figure 4. a part section of the screwed spindle, and
Figure 5. a view of the valve.
In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repeated.
In carrying out my invention according to one modification as applied to water
cocks-and which may be taken as a general example illustrating my improvements-
10. is the casing with which the stuffing box is incorporated, such stuffing box being
provided with female screws 11. and 12., the thread 12. being preferably coarser
than the thread 11. 13. is the screwed spindle used to actuate the valve 14. Such
valve is allowed to have a certain freedom of movement relative to the spindle 13.
both in a rotary direction and in a direction along its axis. This result is obtained
by boring a hole 15. in the spindle, into which the spindle 16. of the valve is
introduced an easy fit, an arris 17. shown in Figure 4. being then turned in on the
recess 18, as shewn in Figure 1. 19. is a face of leather or of other suitable
material. 20. is a loose ring for the purpose of keeping the packing 21. apart
from the screwed portion 12.
The cock is used in the following manner: The valve 14. is first loosely
attached to the spindle 13. by pushing its upper face against the arris 17. until
same is turned in on the recess 18. The spindle 13.-with its loose ring 20. and

page_text: cover 22. is then screwed into position, the packing 21. being afterwards inserted
and the cover screwed up, until the whole is tight. In the drawing, Figure 1. the
valve is shewn off its seat, the dotted lines indicating its lowest position. The
water is supposed to pass through such cock in the direction indicated by
the arrows. By rotating the spindle 13. the valve is raised or lowered; the stuffing
box being rendered independent of it by the loose ring 20.
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 :-
In valve cocks of the type described and illustrated :-
:-
(1.) The combination of parts, substantially in the improved manner hereinbefore
described and illustrated.
(2.) The combination of the valve casing and the stuffing box, as described.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.