Year: 1889

page_text: Date of Application, 15th Aor., 1889
Specification Accepted, 1st June, 1889
I, WILLIAM ANDREW MCINTOSH VALON of the Gas Works, Ramsgate, in the
County of Kent, Civil 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:-
The object of this invention is to so construct gas meter indices that immediately
after a certain desired quantity of gas has passed through the meter, the index and
consequently the meter, will stop, and the supply of gas to the fittings beyond will be
cut off.
In order that this invention, which has several modifications, may be easily under-
stood drawings are attached hereto of which the following is a description. Fig. 1 is
a front elevation of the dial marking hundreds. Fig. 2 is a vertical sectional elevation
through Fig. 1.-Fig. 3 is a section of the pin employed, and Fig. 4 is a cam to be
further alluded to. The remaining Figs. from 5 to 18 both inclusive, are elevations
and vertical sectional elevations of the various modifications to be hereafter described.
To carry out this invention, I make ten or more or less holes A within the circle on
the dial plate B marking hundreds, and into any one of these holes i thrust a milled or
other suitably headed pin Chaving a shoulder but sufficiently long to pass through the
dial plate and project considerably beyond. When the index or pointer D of the
hundreds dial has made either a whole or any desired part of a revolution it will press
against the pin C and so prevent the wheels of the index revolving, thus stopping the
meter and cutting off the supply of gas.
In order to make the action more certain
the spindle or arbor that carries the pointer has, on the inside of the index, an arm, or
disc E Fig. 2 with projection, or cam as seen in Fig. 4, which comes into contact with
that part of the pin projecting on the inside. The stopping of the meter
additionally secured. Instead of plain holes in the dial plate they may be screwed and
the pin may be correspondingly screwed thus doing away with the necessity of using
the arm or disc E.
thus
A modification of the foregoing may be carried out by making a concentric slit F
Fig. 5 within the circle of the hundreds dial, the inner and outer part of the discs
being connected together by straps G, or a plate, behind the dial plate and on the
inside of the index. A milled or suitably headed screw C Figs. 5, 6, and 7 with a
shoulder, is passed through the slit and enters the nut I so shaped or arranged that it
will not turn on revolving the screw. The screw pin C may therefore be fixed at any
part of the concentric slit, and when the hand or pointer comes in contact with it, the
meter will stop.

page_text: A second modification shown in Figs. 8 and 9 consists in attaching an arm K
loosely to the spindle of the hundreds dial, and through which the screwed pin C
may be made to pass, and be secured as described in the last paragraph.
A third modification will be seen in Figs. 10 and 11. In this arrangement there
is a plate L which may be revolved by pushing the projecting pin or stop M
sideways. This pin carries a sliding bolt N one end of which can enter any one of
the holes O made on the inside of the fixed circular ring plate P. By these means
the stop or pin M may be adjusted and fixed at any suitable point
A fourth modification is depicted in Figs. 12 and 13, In this case the screwed
pin C is attached to the revolving plate L and carries a pointer Q which may be fixed
at any suitable point by turning the screw C, and is arranged as shown in Fig. 12.
In Fig. 14 will be seen an arrangement similar to that in Figs. 5, 6 and 7 with the
exception of the pointer Q which shows the figure at which the main pointer D will
be stopped by C.
In Figs. 15 and 16 a method is shown of revolving the plate L, the plate having
worm teeth on its periphery. A spindle R provided at one end with a milled head S
and on the other with a worm T is made to gear into the teeth on the edge of the plate.
On turning the milled head the plate L will be caused to revolve so that the pointer Q
may point to any desired part of the dial. The spindle R may instead of having a
milled head, have its end squared so as to be turned by the application of a separate
key from the outside of the index box. The spindle may also have a ratchet wheel
attached to it, into which a pawl falls to prevent the worm T and plate L being turned
the reverse way.
A fifth modification is shown in Figs. 17 and 18. This consists of a combination of
the arrangements shown in Figs. 10 and 11 and Figs. 12 and 13, and wherein the
bolt N is stationary and is made to shoot into holes formed in the ring plate P, which
in this case is caused to revolve when the adjustment takes place.
In each of the Figs. U represents one of the index wheels and V the back plate of
the index.
Instead of either of the foregoing arrangements being applied to the hundreds dial,
it may be adapted to a special dial made of any convenient size or it may be applied to
either of the other additional dials.
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,
1. The dial plate B having holes A and a pin C arranged as herein described and
shown on the drawings Figs. 1, 2, and 3.
2. The dial plate having a concentric slit F with straps G, or plate, and nut I as
herein described and shown on the drawings, Figs. 5, 6 and 7.
3. The arm K as herein described and shown on the drawings Figs. 8 and 9.
4. The plate L, pin or stop M, bolt N, ring plate P with its holes O as herein
described and shown on the drawings Figs. 10 and 11.
5. The pointer Q arranged as herein described and shown on the drawings Figs. 12
and 13.
6. The toothed revolving plate L with worm T as herein described and shown on the
drawings Figs. 15 and 16, and
7. Parts of the apparatus shown in Figs. 10 and 11 and 12 and 13 combined as
herein described and shown on the drawings Figs. 17 and 18.
DIL
1
11000
W. H. BENNETT,
Agent for the Applicant.