Improved Coin Freed Apparatus for Indicating Speed of Machinery Worked by the Hands or Feet of an Operator.
Year: 1891

page_text: Date of Application, 20th Nov., 1891
Complete. Specification Left, 22nd Aug., 1892-Accepted 24th Sept., 1892
PROVISIONAL SPECIFICATION.
Improved Coin Freed Apparatus for Indicating Speed of Machinery
Worked by the Hands or Feet of an Operator.
I, MONTAGUE STANLEY NAPIER, of No. 68, York Road, Lambeth, in the
County of London, Engineer, do hereby declare the nature of this invention to be
as follows:
My invention relates to apparatus which, on the introduction of a predetermined
coin such as a penny, engages a spindle or shaft driven by the hands or feet of an
operator with the spindle or shaft of a speed indicator, which shews visibly the speed
of the spindle or shaft worked by the operator. For this purpose I arrange a lever
which is moved by the introduced coin so as to engage in a helical slot in the boss
of a clutch fitted to turn with but slide along the spindle or shaft which is turned
by the operator. The boss being thus caused to advance along the spindle or shaft
engages with the other member of the clutch which is fixed on the spindle or shaft
of any known speed indicator and this being caused to revolve shews the speed at
which the operator works. The boss as it is slid forward on the insertion of the
coin brings a worm on it into engagement with a worm wheel having on it suitable
cams and pins which when the worm wheel has made a revolution move a lever that
releases the coin and allows it to drop into a receptacle and raise the lever that has.
been depressed by the coin allowing the boss to be slid back by a spring. During
the number of revolutions of the worm-sufficient to give the releasing worm wheel
one revolution the mechanism has attained such a velocity that a lever mounted on
the clutch is by centrifugal force held in such a position as to keep the two
members of the clutch engaged. But on the speed falling below a certain
minimum, the centrifugal force is no longer sufficient to maintain the lever in its
position of engagement, whereupon the members of the clutch by the action of a
spring become disengaged and cannot become again engaged except on the intro-
duction of a fresh coin.
Dated this 10th day of Novembou 1001
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Coin Freed Apparatus for Indicating Speed of Machinery
Worked by the Hands or Feet of an Operator.
I, MONTAGUE STANLEY NAPIER, of No. 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 ascer-
tained in and by the following statement :-
I
My invention relates to apparatus which on the introduction of a predetermined
coin such as a penny, engages a spindle or shaft driven by the hands or feet of an
operator with the spindle or shaft of a speed indicator, which shews visibly the
speed of the spindle or shaft worked by the operator. For this purpose arrange
a lever which is moved by the introduced coin so as to engage in a helical slot in
the boss of a clutch fitted to turn with, but slide along the spindle or shaft which is
turned by the operator. The boss being thus caused to advance along the spindle
or shaft engages with the other member of the clutch which is fixed on the spindle
or shaft of any known speed indicator and this being caused to revolve shews the
speed at which the operator works. The boss as it is slid forward on the insertion
[ Price 8d.1

page_text: of the coin brings a worm on it into engagement with a worm wheel having on it
suitable cams and pins which when the. worm wheel has made a revolution move a
lever that releases the coin and allows it to drop into a receptacle and raise the
lever that has been depressed by the coin allowing the boss to be slid back by a
spring. During the number of revolutions of the worm sufficient to give the
releasing worm wheel one revolution, the mechanism has attained such a velocity
that a lever mounted on the clutch is by centrifugal force held in such a position as
to keep the two members of the clutch engaged. But on the speed falling below a
certain minimum, the centrifugal force is no longer sufficient to maintain the lever
in its position of engagement, whereupon the members of the clutch by the action
of a spring become disengaged and cannot become again engaged except on the
introduction of a fresh coin.
The construction of the above described apparatus is shewn on the accompanying
drawings in which
Fig. 1 shews a side elevation, Fig. 2 à plan and Fig. 3 a vertical section of the
apparatus.
A spindle F, rotated by a crank handle B, either by hand or by means of a
treadle, carries a sleeve E having a screw thread formed upon it, which sleeve can
slide along the spindle but is carried round thereby by a groove and feather.
Above this sleeve is a lever C, pivotted to the casing at C and having a weight C²
at the one end, while at the other end it carries a slot piece A into which the coin
drops from a shoot, the coin being retained in the slot piece by the beak O of a
lever N which is pivotted to the lever C, and is held in the position shewn at
Fig. 2 with the nose projecting underneath the slot piece, by means of a
spring N¹.
When the coin drops into A, its weight causes the lever C to descend, whereby
a finger D thereon is made to enter the screw thread of the sleeve E as this is
rotated by the handle. By this means the sleeve E is made to screw itself forward
from the position shown at Figs. 1 and 2, into that shewn at Fig. 3, when the
finger D in passing out of the end of the screw thread, will bear against the rear
end face of the sleeve, and will keep it in the forward position as at Fig. 3.
In this position an arm H fixed to the sleeve, in rotating with the latter comes
in contact with projection 1' on an arm I fixed to a spindle J which is in line with
spindle F, but is separate therefrom; thus the arm H is made to carry the arm [
and spindle J round with it at the same speed as F.
The sleeve E has a rear extension on which is fixed a worm K so that as E is
slid forward as described, this worm is brought in gear with a worm wheel L
carried by a bracket L', and thus imparts a slow rotary motion thereto. The
boss of the worm wheel carries a small slightly eccentric pin M, which, in
revolving with L comes in contact with the tail of lever N and moves this so as to
withdraw the beak O from under the slot A, and thus allow the coin to drop out of
the latter.
Immediately afterwards, an incline P on the upper face of wheel L passes under
lever C, and pushes it upward into its original raised position. By this means the
finger D is also raised up away from the back end of the sleeve E, and this being
no longer held, is now pushed backward by a helical spring Q, thereby moving
both the arm H out of gear with projection 11 of arm land the worm K out of
gear with the worm wheel L whereupon the latter will be turned back so as to
bring its pin M into the starting position by a volute spring in the hollow boss
at X. To the arm I of spindle Jare pivotted two levers R S having weights R¹ St
at their ends, and which are connected by a link T, which is acted upon by a
spring U tending to move the weighted ends of the levers RS inwards.
The lever R has a stud R² on its other end, and when by the rotation of the
crank handle B, a sufficient speed has been imparted to the spindles F and J the
centrifugal action of the weights RI SI will cause the weighted ends of the levers
to fly outward against the action of the spring U, and thereby to bring the stud R³
in gear with a notch in a clutch piece V on spindle F thus coupling up the

page_text: spindles F and J. This will take place before the arm H becomes disengaged
from the projection 1', so that after such disengagement has taken place, the two
spindles will continue to revolve together by virtue of the momentum which has
been imparted to the weighted levers R. S, although the rotation of the handle B
may have been discontinued, and this speed of rotation will be transmitted from the
spindle J to the speed indicating mechanism at Y (which may be of any known
description) through pullies or pitch wheels Z Z and cord or chain Z.
On the momentum of the levers RS becoming expended, the apparatus will come
to a standstill, ready to be operated upon again by the insertion of another coin
into the slot A, and the rotation of crank handle B. The latter is connected to
spindle F by a pawl and ratchet clutch, so that if the handle should be turned the
wrong way it will not actuate the mechanism.
The worm K and worm wheel L are so proportioned as to cause the pin M. and
incline P to act on the levers N and C in the manner described after spindle F
has made about six revolutions as this is found to be sufficient for getting up the
full speed.
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. In coin freed apparatus for indicating speed of machinery worked by the
hands or feet, the combination with a spindle rotated by the hand or foot, of a
sliding screwed sleeve E moved forward by a lever C when weighted by a coin, a
finger H on the sleeve being thereby made to engage with an arm I on a second
spindle J so as to carry this round and thereby impart motion to a speed indicator,
and at the same time cause a weighted lever K carried by the spindle J to be made
by centrifugal force to engage with the spindle F and thus to continue the rotation
of spindle after the sleeve E has been forced backward by a spring Q when
released by the lever C substantially as and for the purposes described.
2. In apparatus such as is referred to in the preceding claim, effecting the back-
ward motion of the sleeve E after a certain number of revolutions, by causing
worm and worm wheel gear KL driven by the spindle F to effect the raising of
the lever C by means of an incline so as to bring it out of engagement with the
sleeve E, and thereby allow this to be pushed back by the spring Q, substantially
as described.
3. In apparatus such as is referred to in the preceding claims, the combination
with the sleeve of a worm K which on the forward motion of the sleeve is made
to gear with a worm wheel L carrying a pin M and incline P which act respectively
on the levers N and C for releasing the coin, and raising the lever C after the
spindle F has completed a certain number of revolutions substantially as described.
4. Coin. freed apparatus for indicating speed of machinery worked by the hands
or feet, combined and operating substantially as described with reference to the
accompanying drawings.
Dated this 22nd day of August 1892.
EL & IMRAY,
Agents for the Applicant.