Improvements in Coin Freed Apparatus for Weighing Chairs, Seats, Doors and the like.
Year: 1890

page_text: Date of Application, 17th June, 1990
Complete Specification Left, 19th Feb., 1891-Accepted, 4th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in Coin Freed Apparatus for Weighing Chairs, Seats,
Doors and the like.
ERNEST GEORGE MATTHEWSON, 31, Palace Road, Upper Norwood, Surrey,
Gentleman, do hereby declare the nature of this invention to be as follows:-
My invention has for its object an improved arrangement of coin freed apparatus
especially suitable for weighing chairs, seats, doors and the like, and is constructed
as follows. A horizontal bolt running in guides upon or within the seat, door or
the like is so arranged with a spiral spring running over it. confined between one of
the guides and a collar on the bolt, that the spring will always tend to push the
bolt out into a suitable recess in the fixed part of the apparatus.
To the centre or any suitable part of this bolt is arranged the coin freeing
mechanism, which consists of a cross sleeve carrying a knob which projects to the
outside of the seat door or the like, and this knob carries a spindle the end of which
has a cross pin attached, this pin engages with a special cam which is made like a
quadrant with an arm below and is supported at its centre of rotation by a vertical
spindle, a hopper is arranged so that a coin inserted will fall with its one edge
against this cam and its opposite edge against a stop upon the bolt, and the arm
attached to the same collar as the cam is under the coin thus holding it in position.
It will thus be seen that if the knob is pulled outwards it will cause the cam to
move, and when a coin is between the cain and the stop on the bolt, the bolt will
be pushed back against the spiral spring, thus releasing the bolt from its recess in
the fixed part of the apparatus, this recess is so constructed that it is only necessary
to draw the bolt almost three parts out to release it, the remaining part is bevelled
so that when the seat or door is drawn down or outwards it causes the bolt to be
pushed into the lock further, this causes the distance between the projecting arm
attached to the cam that holds the coin in position and the stop on the bolt to be
increased and thus releases the coin and allows it to drop through into a suitable
box or other container. This bolt may be connected to another bolt acting on the
opposite side by a lever working on a centre, so the movement given to the first
bolt is communicated to the second and works it in an opposite direction.
adapting this to a seat or weighing chair, I preferably construct the apparatus as
follows, the frame of the chair is made in any suitable and substantial manner, and
the seat is hinged at the back and has a spring affixed behind the centre of the
hinges either by the seat projecting over the hinge centre or a suitable arm con-
nected therewith and a spring is attached to this projecting part and a fixed part of
the chair frame underneath, so that the spring will always return the seat to a
vertical position and its own weight will cause it to drop slightly behind this into
the position where the bolt or bolts fall or are sprung into their recesses in the
frame, the coin slot in this case is underneath the seat, which, when the seat is
locked up is outermost, and in a suitable position below the coin slot the knob pro-
jects through the under part of the seat, the seat being hollow the coin freed bolt
and cam arrangement, as described, being within, on the insertion of a suitable coin,
by pulling the knob, the bolt or bolts will be released from the recesses in the chair
frame and on pulling the seat forward and down the bolt is pushed further in by
the bevelled entrance to the recess described, thus releasing the coin and causing it
to drop through the seat into a suitable receptacle enclosed in the lower part of the
In

page_text: chair, the seat is held in horizontal position upon suitable stops on each side of the
frame by the person sitting upon it, and when the person rises the seat is raised and
falls into locking position by the spring before mentioned.
The seat may be arranged to open down upon suitable blocks attached to a set
of weighing levers, these levers being in connection with a spring and balanced to
indicate a person's weight upon a suitable dial arranged upon a standard at the side
of the chair, actuated from the main lever through the rod up the standard con-
nected to a rack gearing into a pinion, upon the index hand and having a suitable
arrangement to return it to zero and preventing it being used more than
once after the scat is lowered, and when the seat is used with weighing mechanism
a suitable block is attached to the back part which blocks the weighing levers
when the seat is in a locked position. The weighing levers are arranged to have
their central or crossing parts in the enclosure under the back part of the seat and
the parts taking the front bearings are brought round each side of the frame within
the blocks, the seat rests upon when down.
Dated this 17th day of June 1890.
H. T. TALLACK,
28, Hatton Garden, London, E.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Coin Freed Apparatus for Weighing Chairs, Seats,
Doors and the like.
ERNEST GEORGE MATTHEWSON, 31, Palace Road, Upper Norwood, Surrey,
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:-
My invention has for its object an improved arrangement of coin freed apparatus,
especially suitable for weighing chairs, seats, doors and the like, and is constructed
as follows.
A horizontal bolt running in guides, upon or within the scat door or the like, is
so arranged with a spiral spring running over it, confined between one of the guides
and a collar on the bolt, that the spring will always tend to push the bolt out into
a suitable recess in the fixed part of the apparatus.
To the centre or any suitable part of this bolt is arranged the coin freeing
mechanism, which consists of a cross sleeve carrying a knob, which projects to the
outside of the seat, door or the like, and this knob carries a spindle, the end of
which has a cross-pin attached, this pin engages with a special cam, which is made
like a quadrant with an arm below and is supported at its centre of rotation by a
vertical spindle, a hopper is arranged, so that a coin inserted will fall with its one
edge against this cam and its opposite edge against a stop upon the bolt, and the
arm attached to the same collar as the cam, is under the coin thus holding it in
position. It will thus be seen that if the knob is pulled outwards, it will cause the
cam to move, and when a coin is between the cam and the stop on the bolt, the bolt
will be pushed back against the spiral spring, thus releasing the bolt from its recess
in the fixed part of the apparatus, this recess is so constructed, that it is only
necessary to draw the bolt about three parts out to release it, the remaining part is
bevelled, so that when the seat or door is drawn down or outwards, it causes the
bolt to be pushed into the lock further, this causes the distance between the pro-
jecting arm attached to the cam, that holds the coin in position and the stop on the
bolt to be increased, and thus releases the coin and allows it to drop through into a
suitable box or other container. This bolt may be connected to another bolt acting
on the opposite side by a lever working on a centre, so the movement given to the
first bolt is communicated to the second and works it in an opposite direction. In
adapting this to a seat or weighing chair, preferably construct the apparatus as
follows: The frame of the chair is made in any suitable and substantial manner
and the seat is hinged at the back and has a spring affixed behind the centre of the

page_text: hinges either by the seat projecting over the hinge centre, or a suitable arm con-
nected therewith, the spring being attached to this projecting part and a fixed part
of the chair frame underneath, so that it will always return the seat to a vertical
position, and its own weight will cause it to drop slightly behind this into the
position where the bolt or bolts fall, or are sprung into their recesses in the frame,
the coin slot in this case is underneath the seat, which, when the seat is locked up,
is outermost, and in a suitable position below the coin slot, the knob projects
through the under part of the seat, the seat being hollow, the coin freed bolt and
cam arrangement as described being within, on the insertion of a suitable coin, by
pulling the knob, the bolt or bolts will be released from the recesses in the chair
frame, and on pulling the seat forward and down, the bolt is pushed further in by
the bevelled entrance to the recess described, thus releasing the coin and causing it
to drop through the seat into a suitable receptacle enclosed in the lower part of the
chair, the seat is held in horizontal position upon suitable stops on each side of
the frame, by the person sitting upon it, and when the person rises the seat is raised
and falls into locking position by the spring before mentioned.
The seat may be arranged to open down upon suitable blocks attached to a set of
weighing levers, these levers being in connection with a spring and balanced to
indicate a person's weight upon a suitable dial arranged upon a standard at the side
of the chair, actuated from the main lever through a rod up the standard, connected
to a rack gearing into a pinion upon the index hand and having a suitable arrange-
ment to return it to zero and preventing it being used more than once after the
seat is lowered, and when the seat is used with weighing mechanism, a suitable
block is attached to the back part which blocks the weighing levers when the seat
is in a locked position. The weighing levers are arranged to have their central or
crossing parts in the enclosure under the back part of the seat, and the parts taking
the front bearings are brought round each side of the frame within the blocks, the
seat rests upon when down.
Figs. 1 and 2, are an elevation and plan of coin freed bolt. A is the coin slot
which is on the outside, B, the knob, also outside, but connected to a spindle C,
inside, which runs in a guide, and has cross pin D at its end. E is the cam, which
works on spindle F and G is the lower arm in one piece with cam E, which holds
the coin from falling through. H, is the guide and stop, on bolt I, which is made
like a flat tube attached to the bolt and is slotted to allow of movement of cam E.
It will thus be seen that if a coin is inserted of the proper dimensions, through
slot A, it will fall into tube H, and rest between the cam E and the opposite side of
tube H and upon lower arm G connected to cam E. If now the knob B is pulled,
cross pin D comes in contact with cam E which in turn pushes the coin against the
opposite side of tube H, and tube H being connected to bolt I, causes the bolt to
be drawn in, the movement being arranged to draw the bolt about three quarters
in and it is pushed in the remaining distance on being drawn forward by the
bevelled hole before described, thus increasing the distance between the side of
Lube and arm G, which held the coin in position, this increased distance exceeds
the diameter of the coin, and allows it to fall through into a suitable hopper, which
conducts it into a suitable receptacle. The tube H is slotted as shown to allow of
movement of cam E. If no coin is inserted it will be seen that on pulling the knob
the cam E will be moved over but having nothing between it and the opposite side
of tube H does not communicate any movement to bolt I, a light spring J is attached
between lower arm G of cam, and a fixed bracket K, to return it and cam to its
normal position and L is the spring attached to stop on bolt, and guide to push
bolt out.
Fig. 3 shows a plan of connecting lever M for working two bolts I. I. instead of
one only.
Fig. 4, is a view of bottom of seat shewing position of coin freed bolt and coin
shoot to carry coins into receptacle, below. N. N. are the hinges and O is the
projecting arm to which a spring is attached to return seat to vertical position after
being drawn down.

page_text: Fig. 5 shows a plan of a set of weighing levers P, arranged for weighing chair
so that they cross within an enclosed space at the back part of the chair, the arms
projecting forward and back to carry on each side the blocks upon which the seat
would rest when lowered, and the upper part of chair.
The arm Q actuating the index being bent as shown so as to be carried round
and into the upright column or pillar R carrying index. S is a cranked lever
moved by arm 0, Fig. 4, attached to seat for releasing index shown in elevation in
Figure 6 and T is a stop which arm 0, Fig. 4, rests upon, when seat is up to block
weighing levers.
Fig. 6, is a part section front elevation of weighing chair taken across line 1, 2,
of Fig. 5, and
Fig. 7, is a part section inside elevation taken across line 3, 4, of Fig. 6.
P. P. are
the weighing levers, upon which the whole of the upper part of the chair rests,
the column R being fixed to the lower part or base of chair, U, is the spring to
which lever is attached for balancing the weight, V is the seat shown locked up
in Figure 6 and dotted both up and down in Fig. 7.
When the seat is down and a person sits upon it, the weight of the person is
communicated to the weighing levers P P and is balanced by spring U, and accord-
ing to the weight so the lever Q is depressed, this lever Q supports a weight W,
and when this support is lowered, the weight W is only supported by the rod X
carrying at its upper end a rack Y which engages with a pinion Z upon the index
hand, the weight W is sufficient to actuate this rod, rack and pinion and it will be
seen that to whatever extent the lever Q is depressed, the weight will carry the
rack down and in turn revolve the index hand indicating the weight of a person.
At the bottom of rod X, a ratchet «, is fixed, and to the fixed part of the base a
pawl,, is so arranged as to hold index rod X to whatever position it falls, by the
action of weight W and lever Q, so that the index is locked until released by the
seat being raised, to go back into its locking position when the cranked lever S
is moved by arm O in the scat, thus throwing the pawl, b, out of gear and allowing
the index to return to zero, which it does by action of weighted rack, c, the weight
of which is so arranged to be sufficient to overcome the weight of rod and rack X
and when the weight W is supported by lever Q.
Fig. 8 is a perspective view of weighing chair.
Similar letters are used to denote corresponding parts throughout the drawings.
Various modifications may be made and any suitable material used.
I am aware of Everitt's Patent, No. 16433, of 1884, Knight's Patent, No. 15580
of 1886, & Hoffmann's Patent, No. 10108 of 1888, and make no claim to anything
therein described, and claimed.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The use in combination with weighing chairs of a coin freed seat, which shall
remain locked in a position in which it cannot be used until a coin or the like is
inserted and thus enable the locking arrangement to be freed, and the seat to be
used for the purpose of indicating the weight of the user.
2. The use in combination with chairs other than weighing of the coin freed seat
as herein described and illustrated.
3. The special arrangement of coin freed bolt I, knob, B, carrying spindle and
cross pin D, actuating can E and arm G and stop on bolt H, by coin or
the like.
4. The coin freed weighing chair as herein described and illustrated.
Deted this 10th day of February 1891
H. T. TALLACK,
28, Hatton Garden, London, E.C., Agent for Applicant.