Year: 1897

page_text: I, HENRY ROBERT HARVEY, of 7, Church Road, Croydon, in the County of Surrey,
Engineer, do hereby declare the nature of my said invention to be as follows:-
The object of my invention is to effect improvements in that class of locks or
bolts which are fitted to the doors of water closets, lavatories, and other places
and which are released or operated through the medium of a coin inserted in such
locks or bolts.
According to my invention, I provide the usual bolt with a pivoted coin holder
which, acting in combination with a lever fast on the outside handle shaft, is
capable through the medium of a coin of drawing back the bolt against the pressure
of a spring. For this purpose the coin holder is formed, preferably, of two suitably
shaped plates having an extension or lug projecting towards the forward end of the
bolt.
The two plates are connected together by suitable screws and distance pieces
one of which is situated between the before mentioned extensions or lugs. The
coin holder is retained in its normal position by a suitable spring or by balancing
with a weight. The operating lever which is fast on the spindle of the outside
handle is formed at its upper end with a claw so arranged that when a coin is
inserted through the slot in the case into the coin holder. which thereby becomes
depressed and brings the extension or lug distance piece into its paid position, the
claw embraces the distance piece whereby motion is communicated to the bolt.
The lever is also provided with a pair of jaws, one preferably capable of yielding
against a spring. These are operated by an inclined surface action so that the
coin is held between them and cannot pass through the lock until the bolt has been
drawn back by the outside handle, when the jaws are again opened and the coin
released.
The bolt when thus drawn back is preferably held in this position by a pawl
engaging in a recess in the bolt, the pawl being disengaged and the bolt released by
a small releasing bolt on coming in contact with the striking plate on the door
post.
The inside handle is loosely mounted on the spindle of the outside handle and
carries a forked lever engaging with a stud on a lever arranged to operate the bolt
from the inside.
This lever is also loosely mounted on the spindle and carries a slotted or grooved
plate at its upper end, a pin or stud on the bolt engaging the slot or groove. It
will thus be seen that either handle may be moved without moving the other, the
inner handle acting direct on the bolt to withdraw same. The plate on the lever
is also arranged to lift the pawl out of gear with the bolt, and to cause an indicator
to fall when the door is opened from the inside, the word "vacant" appearing at
a glazed slot in the lock case. This indicator is raised to its " engaged" position
when a coin has been inserted in the slot and the outside handle operated, by a

page_text: pin on the coin holder which engages the indicator and causes same to pass a
spring pawl which retains the same. This pawl is operated upon by the plate
before mentioned.
The movement of the indicator may in some cases cause a plate or bar to pass
across the slot in the case when "engaged" appears to prevent other coins being
inserted.
Suitable springs, stops and other devices are fitted where necessary to govern or
limit the action of the different parts of the lock or bolt.
DOLL
11 100-
I, HENRY ROBERT HARVEY, of 7, Church Road, Croydon, in the County of Surrey,
Engineer, do hereby declare the nature of my said invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The object of my invention is to effect improvements in that class of locks or
bolts which are fitted to the doors of water closets, lavatories and other places and
which are released or operated through the medium of a coin inserted in such locks
or bolts.
And in order that my said invention may be particularly described and ascertained
reference is hereby made to the accompanying drawings in which similar letters of
reference indicate corresponding parts.
Fig. 1 is an external view of my improved lock.
Fig. 2 is an elevation of the mechanism the lock case being removed.
Fig. 3 is a similar view but with the bolt drawn back.
Figs. 4 and 5 are detail views.
Fig. 6 is an elevation of a portion of the lock mechanism situated on the back of
the plate.
Fig. 7 is a detail view.
According to my invention, I provide the usual bolt with a coin holder b pivoted
at e to the back end of the bolt a. This coin holder is formed, preferably, of two
plates of suitable shape having an extension or lug d, shown in Fig. 2 in contact
with the stop pin 2. The two plates are connected together by screws and distance
pieces, one of which is situated between the lugs d. The coin holder is retained in
its normal position (Fig. 2) by a spring e, or by balancing with a weight.
The operating lever f, which is fast on the spindle g of the outside handle k, is
formed at its upper end with a claw h. so arranged that when a coin is inserted
through the slot i in the case (Fig. 1) into the coin holder b, the first movement of
the levers and grips the coin between the lever f and the lower portion of the
coin holder b, as shown in Fig. 2, whereby the coin holder b is partly rotated on its
pivot c, thus bringing the lug d into position to be caught by the claw h, as shown
in Fig. 3. A further movement of the lever causes the bolt a to slide from left to
right as will be readily understood.
When no coin has been inserted the claw passes beneath the lug and does not
engage therewith as will be seen from the drawings. The lever is formed with a
pair of jaws l, mn; the jaw m being pivoted at m¹ to render it capable of yielding
against a spring n (Figs. 4 and 5). The jaw m is caused to open to receive the

page_text: coin by the contact of its elbow m² with an inclined surface o fixed to the lock
plate p, as shown in Fig. 5, and to close against the reception of the coin when
receding from o, as shown in Fig. 4. By these means the coin is held between the
jaws and cannot pass through the lock until the bolt has been drawn back (Fig. 3)
by the outside handle and retained in that position by the means hereinafter
described. On pressure being removed from the outside handle the spring r forces
the lever back to its original position (Fig. 2) and the jaws l m are opened,
thereby releasing the coin which is now free to drop into a suitable box or
receptacle & fitted beneath the lock (Fig. 1).
The bolt a is held in its drawn-back position as shown in Fig. 3, by a pawl t
engaging in a recess t¹ in the bolt a, the pawl being disengaged and the bolt
released by the chamfered end of the releasing bolt u coming in contact with the
striking plate on the door post, when the door is pulled open, the inner end of the
bolt u being formed with an inclined surface arranged to lift the end of the pawl as
shown in dotted lines in Fig. 2.
The bolt a is operated from the inside by a handle (not shown in the drawings)
fixed to a forked lever (Fig. 6) mounted loosely on the spindle g. The fork of
this lever v engages with a stud won a lever w¹, passing into a suitable slot in the
plate, which is also loosely mounted on the spindle g, and is formed at its upper end
as a slotted or grooved plate, as shown in Fig. 7, which slot or groove receives the
stud a¹ on the bolt. By this means either handle (inside or outside) may be depressed
without moving the other, the inuer handle acting directly on the bolt to withdraw
the same.
The plate end of the lever is also arranged to disengage the pawl t, from
the bolt. For this purpose an inclined edge w² is formed on the lever w¹, which,
ou being moved by the inside handle, passes under and raises the pawl t, the
latter projecting transversely through a slot in the lock plate.
"
vacant
دو
An indicator (not shown on the drawings) bearing the words "
'engaged," is fixed to a lever x (Fig. 2) pivoted at x' to the plate p. It is raised
to the "engaged" position shown, by the stud b¹ on the coin holder, arranged to
impinge upon the pin of the lever ; the raising is effected simultaneously with
the depression of the outside handle, by reason of the partial rotation of the coin
holder on its pivot c, as previously described. The indicator is held in its
engaged" or raised position by the spring pawl y until the inside handle is
operated; this latter movement causes the plate of the lever w¹ to pass over and
depress the inclined tail y¹ of the pawl y, which is pivoted at y² to the plate pas
shown, whereby the pawl becomes disengaged from the indicator lever æ and
allows the indicator to drop to its "vacant" position.
"
-
The movement of the indicator may in some cases cause a plate to pass across
the coin slot in the case, during the time that "engaged" appears at the glazed
aperture shown in Fig. 1, to prevent other coins being inserted.
Suitable springs, stops and other usual devices are fitted where necessary to
govern or limit the action of the various parts of the mechanism.
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 improved mechanism and arrangement thereof for a coin freed lock or
bolt, substantially as described.
2. In coin freed locks and the like, the combination with a bolt, latch, or analogous
means for fastening of a pivoted coin holder formed with an extension or lug adapted
to be engaged by a claw formed on a lever operated by the outside handle when a coin
is inserted in the lock, such claw passing such extension or lug and not engaging
therewith when no coin is present, arranged and operating, substantially as
hereinbefore described and illustrated by the drawings.
3. In coin freed locks and the like, the application and use of a lever carrying a
pair of jaws adapted to receive the coin, such jaws being arranged to grip the coin

page_text: between them and hold the same until the bolt or other fastening has been
operated, substantially as described and illustrated.
4. In coin freed locks and the like, the combination with the mechanism of the
means hereinbefore described for releasing and withdrawing the bolt and for
releasing the indicator by the inside handle, substantially as herein before described
and illustrated by Figs. 6 and 7 of the drawings.
GEORGE DOWNING & SONS,
8, Quality Court, London, W.C., Agents.