An Improved Apparatus for Indicating, on the Introduction of a Coin, the Speed of Rotation Imparted to a Shaft by a Person Operating the same.
Year: 1894

page_text: Date of Application, 11th Oct., 1894
Complete Specification Left, 11th July, 1895-Accepted, 7th Sept., 1895
PROVISIONAL. SPECIFICATION.
An Improved Apparatus for Indicating, on the Introduction of a
Coin, the Speed of Rotation Imparted to a Shaft by a Person
Operating the same.
I, MONTAGUE STANLEY NAPIER, of 68 York Road, Lambeth, in the County
of London, Engineer, do hereby declare the nature of this invention to be as
follows:-
77
This invention relates to improvements in coin-freed apparatus for indicating the
speed of rotation imparted to a shaft by a person operating the same, the main
object of the present improvements being to so arrange what I term a "governor
that it shall at all times be in connection with the crank but so that no indication
of the speed of rotation shall be indiented' unless and until a coin of predeterniined
value be placed in the apparatus, thereby simplifying the construction of such
apparatus.
In carrying out my invention in a suitable case I mount the governor which is
advantageously in the form of a closed cylinder containing mercury and provided
with a font the rod of which extends through the top of the cylinder, the said
governor being adapted to be rotated by a crank placed outside the case of the
apparatus.
At a suitable distance above the top of the cylinder 1 arrange a lever.carrying
at one end a coin bucket and at the other end a counterweight so arranged that
when no coin is in the bucket the lever is free of the float-rod. Attached, to, this
lever is a cord which passes round a snail or spile on the spindle of the indicating
pointer which is adapted to travel round a graduated dial, the pointer spindle being
weighted so as to normally tend to bring the. pointer to zero. A coin-chute leads
from the money slit to the coin bucket, the said bucket being pivotted on centres
at right angles to the coin in a stirrup at the end of the lever so that the coin is
supported in the bucket by the hottom of the stirrup..
By this arrangement if the crank be operated so as to rotate the cylinder of the
governor the float-rod will fall proportionately to the speed, the lever connected
with the indicating mechanism remaining in its normal position. If, however, a
coin be introduced into the apparatus it will pass down the chute into the coin-
bucket thereby moving down the lever until it comes into contact with the float-rod,
a hollow cone being advantageously placed upon the lever to ensure proper contact
with the said float-rod. The falling of the lever pulls down the cord passing over
the snail thereby operating the pointer, the saidi suail being of such a form as to
allow of equally graduating the dial, it being found in practice that the float does
not rise and fall in direct proportion to the speed of rotation.
In order to effect the discharge of the coin I arrange a tripping lever at one; side
of the bucket which, on its downward movement passes a fixed pin or pins without
moving the said bucket but which, as the lever rises as the speed decreases, catches
against the pio or one of the pins, thereby tilting the bucket to one side so as to
move the coin clear of the stirrup, allowing it to fallinto the coin-receiver the lover
returning to its normal.position.
Should the crank be turned above a predetermined speed the lever carries tho
| bucket down to such a point' as to allow a tripping lover on the other side of the

page_text: bucket to pass a pin which on the upward or return movement of the lever tilts the
bucket in the opposite direction to that hereinbefore described so as to discharge
the coin into a chute which leads to the outside of the case so that the operator
receives back his money.
I
Although I have described the use of a mercurial governor it will be obvious that 5
may use a centrifugal or other suitable form of governor.
Dated the Tith day of October 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
An Improved Apparatus for Indicating; on the Introduction of a
Coin, the Speed of Rotation 'Imparted to a Shaft by a .Person
Operating the same.
I, MONTAGUE STANLEY NAPIER, of 68, York Road, Lambeth, in the County
of London, 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 :-
This invention relates to improvements in coin-freed apparatus for indicating the
speed of rotation imparted to a shaft by a person operating the samo, the main
object of the present improvements being to so arrange what I term a "governor
that it shall at all times be in connection with the crank but so that no indication
of the speed of rotation shall be indicated unless and until a coin of predetermined'
value be placed in the apparatus, thereby, simplifying the construction of such
apparatus.
In the accompanying drawings;
1
1
L.
Figure is an elevation of apparatus having my improvements applied thereto;
Figure 2 is a side elevation :
and,
Figure 3 is a sectional' elevation looking from the rear; and,
Figure 4 is a sectional side elevation.
In carrying out my invention I mount in a suitable case a the governor which is
advantageously in the form of a closed cylinder 6 containing mercury and provided
with a float c the rod d of which extends through the top of the cylinder. The said
cylinder is mounted on a spindle e carried by a step and a bearing g and is adapted
to be rotated by a crank placed outside the case of the apparatus through
the medium of the shatt and the screw gear wheels j, k on the shafts and e
respectively.
ווי
When the cylinder is rotated the mercury therein will; under the centrifugal
action, move towards the walls of the cylinder from the centre thereof, whereby
the float will more or less fall according to the speed: In order that the
mercury shall partake of the motion of the cylinder, ribs, are formed in the
latter.
At a suitable distance above the top of the cylinder bl arrange a leverim pivoted
at m and carrying at one end a coin bucket n and at the other end a counter-
weight n', the said lever being also provided with a pivoted arm or having an
inverted cone or cup o" formed thereon and designed to come into contact with the
float rod d. Attached to the lever m is a chain or cord p which passes round a
snail 9 on the spindle g¹ of the indicating pointer which is adapted to travel round
a graduated dials, the pointer spindle being weighted, for instance, by a weight s¹
attached to a cord so as to normally tend to bring the pointer to zero. A coin-
chute t leads from the money slot to the coin bucket, theisides'u, u! of which are

page_text: pivoted on centres at right angles to the coin and fall towards one another to
support the coin between them, as indicated by dotted lines in Figure 4.
By this arrangement if the crank h be operated so as to rotate the cylinder b of
the governor the float-rod d will fall proportionately to the speed, the lever m
connected with the indicating mechanism remaining in its normal position. If,
however, a coin be introduced into the apparatus it will pass down the chute into
the coin-bucket n thereby moving down the lever muntil the coue or cup o¹ thereon
comes into contact with the float-rod, the said cone or cup being advantageously
provided to ensure proper contact with the said float-rod. The falling of the
lever m pulls down the chain or cord p passing over the snailty thereby operating
the pointer.
The said snail is of such a form as to allow of equally graduating
the dial, it being found in practice that the float does not rise and fall in direct.
proportion to the speed of rotation.
บ
In order to effect the discharge of the coin I arrange in conjunction with the side
piece u of the bucket n a tripping lover which, on its downward movement passes
a fixed pin to without moving the said side piece but which, as the lever rises as
the speed imparted to the governor decreases, impinges against the said pin w,
thereby tilting the side piece u to one side so as to allow the coin to come against
the tail piece of u, and fall into the coin-receiver A the lever m returning to its
normal position.
Should the crank be turned above a predetermined speed the lever m carries
the bucket down to such a point as to allow a tripping lever v on the side piece u¹
of the bucket to pass a piu w which on the upward or return movement of the lever
tilts the said side piece w' in the opposite direction to that of the side piece u
when tilted so as to discharge the coin into a chute which leads to the outside of
the case so that the operator receives back his money.
I
Although I have described the use of a mercurial governor it will be obvious that
may use a centrifugal or other suitable form of governor.
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. A coin-freed apparatus for indicating the speed of rotation imparted to a shaft
such as is herein described wherein the speed governor or indicator is so arranged
that while it is always actuated when the shaft is rotated, no indication of the
speed of rotation is obtained, unless and until a coin of predetermined value is placed
in the apparatus, substantially as herein before described.
2. In a coin-freed apparatus for indicating the speed of rotation imparted to a
shaft, the combination of a speed governor, indicating mechanism arranged
independently of the said governor and adapted to be operated by the weight of a
coin, and means whereby the money introduced into the apparatus will, on a certain
speed of rotation being obtained, be again returned to the outside of the apparatus,
substantially as described.
3. The manufacture and use of the improved coiu-freed apparatus for indicating
the speed of rotation imparted to a sbaft, substantially as hereinbefore described and
illustrated in the accompanying drawings.
Deted this 11th day of July 1895
G. F. REDFERN & Co.,
4, South Street, Fiusbury, London, Agents for the Applicant.