An Improved Lock for Securing the Receipt of Coins and Con- trolling the Mechanisms of So-called Automatic Apparatus and Appliances.
Year: 1887

page_text: An Improved Lock for Securing the Receipt of Coins and Con-
trolling the Mechanisms of So-called Automatic Apparatus and
Appliances.
I, WILLIAM FOLDER HURNDALL, of 109 Blackfriars Road, in the County of
Surrey, Pipe Case Maker, do hereby declare the nature of my said invention to be as
follows:-
-:
The object of my invention is to manufacture a simple description of lock,
applicable to all kinds of apparatus, commonly called automatic appliances for the sale
and delivery of goods, and for other purposes, on the receipt of a coin.
By invention consists of a simple form of lock, having a slot for the insertion of a
penny, or other coin; and a bolt which retains the mechanism, or some part of the
mechanism of the automatic apparatus, in a state of rest, until the bolt is released or
withdrawn from the mechanism by the operation of the coin.
Underneath a portion of the coin-slot, one arm of a bell-crank lever extends. This
lever is pivotted in the lock, and the other end of the same lever enters a suitable
opening in a bolt; one end of such bolt projecting beyond or through the lock
case.
When the proper coin is inserted in the lock it falls between the side of the case
and one arm of the bell-crank lever. The lever is then moved by the weight of the
coin, thereby withdrawing the bolt, and releasing the mechanism of the apparatus to
which the lock is attached, or of which it forms part.
Dotod 32-d November 1887
GEO. DOWNING,
Agent for Applicant.

page_text: COMPLETE SPECIFICATION.
An Improved Lock for Securing the Receipt of Coins and Con-
trolling the Mechanisms of So-called Automatic Apparatus and
Appliances.
I WILLIAM FOLDER HURNDALL of 109 Blackfriars Road in the County of Surrey
Pipe Case Manufacturer 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 :-
"
The object of my invention is to manufacture a simple description of lock or bolt
applicable to all kinds of apparatus or machinery commonly known as "Automatic
appliances for the sale and delivery of goods or for effecting other purposes on the
receipt of a coin of a certain size and weight. My lock will not permit of the
Automatic appliance being worked except with a coin or metal disc of the exact size
and weight for which each particular specimen is intended. It will permit smaller
coins to pass through without withdrawing the bolt hereinafter referred to and cannot
be worked by means of cardboard or other discs in the same way as many of the
existing machines can.
I construct a simple form of metal lock enclosed in a metal case which will be more
readily understood on reference to the drawings accompanying this specification
which show a section of the most convenient size for receiving a penny piece of the
current coinage of Great Britain and Ireland.
Fig. I represents the lock closed and at rest Fig. II represents the same lock being
opened by a penny piece in the act of passing through. Fig. III represents a plan of
the same lock and Fig. IV shows plans of the lever and bolt hereinafter mentioned
like letters representing like parts.
The case of the lock has a slot (E) for the insertion of a penny or other coin on
the upper side and a hole to permit of a bolt (A) passing through on the underside.
This bolt retains the mechanism or some part of the mechanism of the automatic
appliance in a state of rest until the bolt is released or withdrawn from the mechanism
by the operation of a suitable coin as in Fig. II.
The
Vertically beneath a portion of the coin slot E, extends one arm (C D) of a bell
crank lever (CDF). This lever is pivotted at a point D into the lock case and the
other arm (D F) of this same lever enters a suitable opening (B) in the Bolt (A)
which bolt projects a certain distance through the lock case as shown in Fig. I.
length of the arm D F must be so regulated according to the length of bolt that
projects as above mentioned so that when the arm CD is depressed sufficiently to
permit of the required coin (in the drawings a penny piece) passing through, the bolt A
shall be completely withdrawn into the lock case as in Fig. II.
The end of arm C D is made as broad as the external width of the lock case as
shown in Fig. IV and works backwards and forwards in a hole H cut in the lock
This hole H must be sufficiently-large-to-allow. the arm CD to drop almost
case.

page_text: vertically beneath D and on the other hand must not permit the arm C. D to rise
within several degrees of the horizontal line through D as it is by this means chiefly
that the length of the bolt that is allowed to project can be regulated. The arm D F
is also cut as shown in Fig. IV to permit of it working freely on the bolt A.
When the proper coin is dropped into the lock falling rather more than half way
over the slot E on the bevelled edge as shown it rolls or falls between the side of the
case and the arm C D of the lever and it is by reason of the fall of the coin being
broken by dropping on the bevelled edge instead of directly into slot E that it is
impossible to work the lever with a coin or metal disc of less weight than the one
intended. The arm C. D is thus depressed by the weight of the coin and the arm D. F
acting on the bolt A. in the opening B causes it to be withdrawn as long as the coin
remains between the case and the arm C. D. The mechanism of the automatic apparatus
is thus released and when the coin is permitted to pass completely through the lock
through a slot in the case below the lever, the lever and bolt resume the original
position as in Fig. I.
By using a small projection or knob (in the mechanisin which is secured by the
bolt A) to lift the bolt A when the coin is released slightly higher than it is lifted
by the action of the coin on the Lever (and thus to allow the lever C. D to drop
vertically by its own weight) the slot E is cleared of any improper materials that may
have been inserted into it.
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-
The const-uation of
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