Improvements in or relating to Coin-released Locks for Closet Doors and other purposes.
Year: 1893

page_text: Date of Application, 21st Nov., 1893
Complete Specification Left, 20th Aug., 1894-Accepted, 27th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in or relating to Coin-released Locks for Closet
Doors and other purposes.
I JEAN AUGUST JACOBS of 15 Seymour Street, N.W. in the County of
London, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to locks, principally for use upon the doors of closets for
public use, to be opened only upon the placing of a proper coin or coins in the slit
provided therefor. The object of the improved mechanism is to permit of the use
of two halfpennies or one halfpenny and two farthings or four farthings instead of
the usual penny coin, which will also operate the release of the lock.
The outer handle and the inner handle work independently, but both or either
will move the bolt of the lock. Under the outer handle is a lever with a rod
moving in guides, attached to its outer end, so that this lever cannot be moved
downward unless the rod is free. The lever when held from movement prevents
the outer handle from being moved, but upon insertion of the coin or coins afore-
said the weight of the latter overbalances a weight and brings an arın thereon from
out of the path of the aforesaid rod and so permits the lever to move and the
handle to be turned to draw back the bolt.
The inner handle when turned in either direction not only draws back the bolt
but lifts or depresses a slide which rocks in one or other direction a two armed
pivoted plate, which again rocks another pivoted arm, acting on a pin projecting
from the balance, which was overturned by the aforesaid coin, and returns this
balance into its first position causing its arm to enter the path of the rod before
described and prevent it from being moved and thus the lock from being opened
until the balance is again overturned by coins of the necessary aggregate weight.
The attendant is provided with a key by which the slide may be moved to obtain
access without insertion of coin or coins.
Should the coin receptacle become too full so that the balance cannot be returned
to its first position, a spring inserted in the slide will enable the inner handle to be
moved so as to unfasten the lock in spite of resistance by or from the balance.
Dated this 21st day of November 1893.
R. HADDAN,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Coin-released Locks for Closet
Doors and other purposes.
I JEAN AUGUST JACOBS of 15 Seymour Street, N.W., 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 locks, principally for use upon the doors of closets for
public use, to be opened only upon the placing of a proper coin or coins in the slit
provided therefor. The object of the improved mechanism is to permit of the use
of either one penny or two halfpennies to operate the release of the lock.
Price dl

page_text: The outer handle and the inner handle work. independently, but both or either
will move the bolt of the lock. Under the outer handle is a lever with a rod or
tongue moving in guides, attached to its outer end, so that this lever cannot be
moved downward unless the rod is free. The lever when held from movement
prevents the outer handle from being moved, but upon insertion of the coin or coins
aforesaid, the weight of the latter overbalances a counterweight and brings an arm
thereon from out of the path of the aforesaid rod or tongue, and so permits the
lever to move and the handle to be turned to draw back the bolt.
The inner handle when turned in either direction not only draws back the bolt,
but lifts or, depresses a slide which rocks in one or other direction a two armed
pivoted plate which again rocks another pivoted arm acting on a pin projecting
from the balance which was overturned by the aforesaid coin, and returns this
balance into its first position causing its arm to enter the path of the rod or tongue
before described and prevent it from being moved and thus the lock from being
opened until the balance is again overturned by coins of the necessary aggregate
weight.
The attendant is provided with a key by which the slide may be moved to obtain
access without insertion of coin or coins.
Should the coin receptacle become too full so that the balance cannot be
returned to its first position, a spring inserted in the slide will enable the inner
handle to be moved so as to unfasten the lock in spite of resistance by or from the
-balance or slide.
This invention is illustrated in the annexed drawing in which
Fig. 1 is a front elevation of the device with its cover plate removed showing
the parts in the position occupied by them before any coin is put in the coin slot.
Fig. 2 is a similar view showing the parts in the position they occupy when a coin
or coins has overturned the balance and the handle is turned and the locking bolt
drawn back, as at the moment of unfastening the door.
Fig. 3 is a detail view of the locking bolt and the stems of the handles and
adjacent parts in plan view.
A is a casing containing in its upper part A¹ a hand bolt to be operated from
inside and an indicator bearing the words "Vacant" and "Engaged" or equivalent
words engaged with said bolt, these parts forming no part of the present invention
and being capable of being dispensed with if desired. The casing A contains the
mechanism hereinafter referred to, and is prolonged below the latter to provide a
chamber A' for a money receptacle of any desired kind with any suitable door and
lock to provide access thereto. B is the bolt with bevelled nose B₁ B' are guides
therefor. B is the spring which pushes the bolt outwards B B are lugs on the
bolt by which it may be drawn back by the fingers C' C' operated by turning the
stem of the outer handle in the one or other direction; and B Bare lugs on
the bolt by which it may be drawn back by either of the similar fingers D' D₁ of
the stem D of the inner handle. The stems C and D are in the same axial line but
are not connected together, though it is convenient for the one to end in a
cylindrical pin such as C2 lying in a cylindrical recess in the end of the other; the
handles may thus be turned independently. On the stem C of the outer handle is a
lever C having a heel C' and on a fixed pin E is pivoted a lever E' having a rod
or tongue E, which moves between guides E' E'. In suitable bearings such as the
annular plate F on lug or bracket F and a similar bearing on the back plate
revolves the knife.edged pin F of the balance F³, one arm of which carries the
coin receiving pan F4 open below and shaped to guide and hold the coins on their
edges, and the other arm carries a tongue F' bent to lie over the guides E' which
support it against attempts to force the mechanism. When the balance is in
position to receive a coin or coins (Fig. 1) the tongue Flies under the rod or
tongue E and prevents it from being moved, until the balance has been overturned
as shown in Fig. 2.
It is found in practice useful to give such shape to the tongues E and F³ or to
the one or other of them that pressure of the tongue E on the tongue F³ may

page_text: slightly move the balance' towards the direction in which it is to be overturned.
The purpose of this movement is to compensate for variations in the weight of new
and old coins respectively and for the difference between one penny and two half-
pennies in weight so that on the one hand a new halfpenny will not overturn the
balance under the effect of the momentum of its fall (which momentum is however
reduced as much as possible) and on the other hand the balance will not fail to
respond to the weight of a worn penny, if given the slight preliminary tipping
referred to. Thus the usual resting place of the balance is such that the balance
would not be overturned by the inertia of a moving coin of less value, that is
weight, than that desired; whereas the tongue E' will bring it into a more unstable
position, or position of more delicate adjustment after the coin has come to rest in
the pan F and consequently its true static weight alone will be felt by the
balance, when, as will be the case, the person trying the handle and finding an
impediment to its turning in one direction by the friction of tongue E on
tongue F, will momentarily release the pressure or try to turn the handle in the
other direction. This temporary release from pressure after the balance has been
brought into its more delicate position will permit the latter to overturn and so free
the lever and enable the handle to turn to draw back the locking bolt B. The
balance having fallen into position shown in Fig. 2 the dog G enters the slot G¹
in the coin pan and ensures that the coin shall fall out into the cash compartment.
The return of the balance to its locking position is effected by turning the inside
handle as would be done by any person desiring to leave the closet. This is effected
through the following mechanism; the stem D carries an arm D' having at its end
a pin Don which a socket at the upper end of the plate H engages. The lower
end of this plate or a part H¹ connected thereto as hereinafter described engages
with a rocking plate H which bears against a pivoted arm H'. A spring H
presses the arm H' into contact with the edge of plate H. Whether the handle
on stem D is turned in the one or other direction, the plates H and H* are
rocked in such a way as to press back the arm H³ which then moves the balance
into its first position by pressure against the lug F thereon. To enable the lock to
be opened by a person provided with a key for that purpose without insertion of
any coin, the plate H is shaped in such a way for instance as indicated in the
drawing that it may be moved by a key. H³ is a pin for the barrel of such key
and the apron of the key operates against the part H of slot H' in plate H. The
movement of plate H revolves the stem D through arm D' and the bolt B is drawn
back through the lower arm D'. In case there should be an impediment to the
movement of any of the lower parts of the mechanism through the coin receptacle
becoming over full, the plate H is made in two spring connected operative parts.
The lower part H₁ may be in the form of a rod or piston working in a socket at
the lower end of plate H, prevented from falling apart for instance by rod and
nut H. A spring of sufficient strength H bears on the piston and on the end of the
socket and prevents any compression of the operative length of parts H and H¹
except in emergency as above referred to.
The lever E is returned to its uppermost position when free by spring E'.
The coin guide may be of the general shape shown in dotted lines at J Fig. 1
J being the entrance or coin slot, J' the lower opening just above pan F. The
line of direction of the guide is made as oblique as possible to the pan F so that
coins may not fall therein with great momentum. Js is a stop at the end of the
guide or chute against which the coins run thus neutralizing the momentum they
acquire in running down the chute.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed I declare that what
I claim is ;-
In a coin released lock;—
1. The combination with a bolt and rotary handle stem adapted to withdraw said

page_text: and a balance adapted to lock said stop lever or to free the same on being
overturned by a suitable coin or coins substantially as set forth.
2. The balance F³ as herein shown and described with tongue F³ in combination
with lever E' with rod or tongue E2 adapted to co-operate as and for the purpose
set forth.
3. The combination of an outer handle stem having means for locking it and a
coin balance controlling the said locking means, with an inner handle adapted to
be moved independently of the outer handle substantially as described.
4. The combination of an outer handle stem having means for locking it and a
coin balance controlling the said locking means, with an inner handle stem adapted
to be moved independly of the outer handle and to return the balance to its locking
position.
5. The means substantially as illustrated and described for returning the balance
to its locking position by a rotary movement of a handle stem in either direction.
6. The construction of plate H to be operated by a key as herein specified.
7. The construction of the mechanism for returning the balance to the locking
position, by means of spring connected parts whereby the handle stem is not
prevented from being revolved by impediment of said mechanism.
8. The construction of plate H with part H' and spring H° for the purpose
specified.
9. The combination of parts constituting means for locking the exterior handle
and for releasing same by a coin or coins and for replacing the locking mechanism
by movement of the interior handle said means being substantially as illustrated and
described.
Duted this 20th 2
:
R. HADDAN,
Of the Firm of Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, W.C., Agent to Applicant.