Improvements in Coin-freed Dynamometers.
Year: 1890

page_text: Date of Application, 26th Nov., 189G
Complete Specification Left, 30th June, 1891-Accepted, 22nd Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in Coin-freed Dynamometers.
We JAMES GARROW, Engineer, and JAMES FORWELL, Merchant, both of
18 Howard Street, Glasgow, in the County of Lanark, North Britain, do hereby
declare the nature of this invention to be as follows:-
This invention which relates to a wrist and muscle testing machine has for its
object the production of an automatic machine for testing the strength of the
muscles of the wrist and arm by using a proper coin, the strength being indicated
on a suitable dial in pounds.
In carrying out our said invention we construct a suitable case, which may be
made of iron, wood, or other material, and which has a bridge or cross piece at its
back so as to carry the necessary shafts, spindles, etc. the whole of which may if
desired be protected by a tin or other material back. Inside the said case we
mount a spindle the one end of which extends through the front of said case and
is there provided with a suitable handle or fulcrum which may be either an open or
shut handle as desired; near the inside end of said spindle we mount a suitable
square shouldered crank having an inverted V shaped slot and circular raised part
at its one end, in which an adjustable eyebolt works, the lower end of which is
connected to the top end of a spiral or other spring which is secured at its lower
end to the bottom or side of the main case; the said spindle has also mounted on
it the wheel or wheels which gear with the wheel or pinions fixed on another
spindle in connection with the indicator which is secured to its outer or front end in
front of the dial, which is built or fitted into a checked or recessed part of said
case, and covered by a protecting glass, the whole of which are held in the proper
The money
positions by means of a brass or other ring secured to outside of case.
lever is balanced upon a cross shaft or bar, having one of its ends resting on a
support or stop, in front of the crank, and which may be formed in one with the
case or screwed or otherwise attached thereto, the other end which has a money
cup or pan extends forward in front of the money shoot, so that on a coin being
inserted the said lever drops and rests upon a guide where it is kept in position by
means of a circular guard, until the operator turns the handle and relieves the said
coin which then drops down into the money box or drawer in lower part of case.
In order to enable the said money lever to travel in accordance with the pressure
we connect a travelling guide to said main wheel on handle spindle in such a
manner that it guides and returns said lever to its proper resting position on the
stop in front of the cranks shoulder, a similar stop is also provided for the said
crank so as to ensure of its square end returning to its proper position. In case of
accidents we may also provide a suitable stop so as to prevent the crank and other
gearing travelling beyond the desired radius.
The said case is also provided with a suitable money slot and shoot and preferably
a half penny trap through which the pennies or proper coins pass to the
cup or pan
on money lever, while the half penny or similar small coins turn over and drop into
the money box or drawer. And in order to prevent base coin or other foreign
matter from getting into the machine we mount one or more india rubber discs
either in front of the machine behind the money guard or slot or inside the
machine at the edges of said money slot and in front of the shoot, the said discs
may be made stationary or they may be so mounted as to revolve, thus preventing
soft matter or spurious coins with rough surfaces or edges getting into the money
slot

page_text: The said machines may be so constructed as to be placed against walls or such
like or fitted to counters tables and such like or they may be provided with suitable
pedestals, or standards of their own, and also they are provided with suitable doors
through which the money may be taken out by the proprietors.
Dated this 24th day of November 1890.
JOHNSONS,
115, St. Vincent Street, Glasgow, Petitioners' Agents.
COMPLETE SPECIFICATION.
Improvements in Coin-freed Dynamometers.
We, JAMES GARROW, Engineer, and JAMES FORWELL, Merchant, both of
18 Howard Street, Glasgow, in the County of Lanark, North Britain, 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 which relates to improvements in coin-freed dynamometers, has
for its object to provide an automatic machine for testing the strength of the
muscles of the wrist and arm by using a proper coin, the strength being indicated
in pounds on a suitable dial.
But in order that our said invention may be more readily understood and easily
carried into effect, we will describe the same with reference to the accompanying
drawings throughout which the same reference letters denote similar parts.
Figure 1 is an elevation, Figure 2 a sectional plan taken on line 1, 2 of Figure 1,
Figure 3 a sectional elevation taken on line 3, 4 of Figure 2, and Figures 4, and 5
are detail views of our improved dynamometer.
Referring to the said drawings we construct of iron, wood, or other material a
case A preferably of a shape as shown and which is provided with a bridge or
cross piece a at its back so as to carry the rear ends of the shafts, spindles etc.;
the whole of which may be protected by a tin or other material back plate a'.
Inside the said case A, we mount a spindle B, the one end b of which extends
through the front of said case A where it is provided with a suitable handle or
fulcrum B, which may either be an open handle as shown or a shut one as desired;
near the inside end of said spindle B, we key or otherwise mount a square
shouldered crank C, which is provided at its one end with an inverted V shaped
slot c, and circular raised part c', in which an adjustable eyebolt D works, the
lower end of which is connected to the top end of a spiral or other spring D', which
is secured at its lower end to the bottom or side of said case A, by means of a
bolt d, or otherwise; the said spindle B, has also keyed or otherwise mounted on
it the wheel E or wheels which gear with the pinion E' or pinions which are fixed
on another spindle F, in connection with the pointer g, of the indicator G, the said
pointer g, being secured to the front end of said spindle F in front of the dial g',
which is built or fitted into a checked or recessed part a², of said case A, and
covered by a protecting glass g³, the whole of which are held in their proper
positions by means of a brass or other ring or bezel g³, screwed or otherwise
secured to the outside of said case A. The money lever I is balanced on a cross
shaft or bar H' carried by the said case A. and bridge piece a in such a manner
that the said lever's one end h, rests by means of the support or stop h', in front of
the crank's shoulder c2, and its other end extends forward in front of the money
shoot J, where it is provided with a money cup or pan 2, so that on a pre-arranged
coin being inserted through the slot J', in the case and shoot J, it causes the said
cup or pan h², to drop down and rest on a guide h³, where it is kept in position. as
shown more particularly in Figure 5, by means of a circular guard a³, either

page_text: formed on or attached to the inside of said case, until the operator turns the
handle B', and so relieves the said coin which then drops down into the money box
or drawer K, provided in the lower part of said case; the said guide which is
attached to the handle's spindle B or it may be to the main wheel E also enables
the said money lever H to travel in accordance with the pressure as well as to
guide and return the said lever H back to its normal position against the square
shoulder c, of the crank C, and so lock the mechanism, the said crank being
provided with a suitable stop c³ so as to ensure of it always coming into the
position for locking. If desired in case of accidents we may also provide a suitable
stop so as to prevent the crank C and other gearing travelling beyond the proper
radius.
The said case A is also provided with a money slot J' and shoot J, which is
preferably so constructed, as shown more particularly in Figures 2, 3 and 4, as to
form a halfpenny or small coin trap, and through which the penny or other pre-
arranged coin passes to the cup or pan h², of the money lever H, while the half-
penny or other small coin turns over or falls out of the said shoot J, into the money
box or drawer K. And in order to prevent base coin or other foreign matter
having rough surfaces or edges from getting into the machine, we mount one or
more india-rubber discs or rollers L, either in front of the case A, behind the
money slot or, as is shown in Figure 4, inside the case A, at the edge of the money
slot J and in front of the shoot J; the said discs or rollers L are preferably
mounted as shown so as to revolve, though they may be made stationary if desired,
thus owing to the said discs being mounted so as to contract the opening J' any
soft matter, or spurious coins, having rough surfaces or edges are prevented from
entering into the money shoot J, as their edges would catch in the soft rubber discs
or rollers L, while the prearranged coin, such as a penny would pass by as its
edges are smooth.
The said machines are preferably constructed with lugs or snugs M, so as to
enable them being placed against walls or such like, or they may be so constructed
as to be fitted to counters, tables and such like, or they may be provided with
pedestals or standards of their own, and they are also provided with a suitable
locking door N, through which the money may be taken by the proprietors.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1st. The general arrangement, construction and combination of the various parts
constituting our improvements in coin-freed dynamometers, that is to say, our
improved machine for testing the strength of the muscles of the wrist and arm, all
substantially as hereinbefore described and shown in the accompanying drawings.
2nd. Operating coin freed dynamometers by giving a turning or twisting motion
to a handle or fulcrum so as to test the strength of the muscles of the wrist and
arm.
3rd. In coin freed dynamometers the arrangement and combination of the
crank C, having slot c and raised part c', with the adjustable bolt D, spring D¹
and bolt d, all substantially as herein before described and shown in the accompany-
ing drawings.
4th. In coin freed dynamometers, the arrangement of the money lever H, having
square or flat end h, and stop h', in combination with the square shoulder of the
crank C, whereby the said mechanism is unlocked by the placing of a coin in the
cup of the said lever, all substantially as herein before described and shown in
the accompanying drawings.
5th. In coin freed dynamometers, the arrangement and combination therewith of
one or more india rubber discs or rollers L, substantially as and for the purposes
hereinbefore described and shown in the accompanying drawings.
6th. In coin freed dynamometers the employment of a checked or recessed

page_text: part a², into which the dial 9 and glass g² are placed and held there by means
of the ring or bezel g³, all substantially as and for the purposes hereinbefore
described and shown in the accompanying drawings.
Dated this 29th day of June 1891.
JOHNSONS,
115, St. Vincent Street, Glasgow, Petitioners' Agents.