Door Lock with Catch Releasable after to En.
Year: 1886

page_text: Date of Application, 16th Oct., 1886
Complete Left, 18th July, 1887.
Complete Accepted, 2nd Sept., 1887.
Door Lock with Catch Releasable after the Insertion of a Coin to
Enable the Door to be Opened for Entrance, the Coin being
Discharged on Re-opening the Door for Exit.
I, WILLIAM SPEIRS SIMPSON of Battersea Park Road, Surrey, Engineer, do hereby
declare the nature of this invention to be as follows :-
This invention relates to fitting to ordinary locks used for doors-an appliance or
combination of appliances-that the catch shall be held "shot" until a coin, say, a
penny, is dropped into and through a slit, said coin then lodging upon a saddle and
forming a block which is utilized when the handle is turned to draw back the catch to
enable a person to enter an apartment, said person either closing the door after him, or
the door be closed by a spring or by its own weight. The coin is retained in the
saddle until released by the movement of a sliding knob from the inside of the door on
the person leaving the apartment.
For the purpose of my invention, I arrange in connection the spindle socket a
pivotted arm terminating in a rounded or other shaped saddle fitted to slide on a pin
or stud. This saddle has an aperture in its upper end into which a stud on the
underside of the catch stem is free to enter. The stem of the saddle has a shaped
projection or blade and the catch stem has a notched plate this being directly under
the slit for steadying the coin while on the saddle.
The catch stem has a projecting button which can only be moved from the inside of
the door, the handle of spindle being on the outside.
There is no connection between the spindle and the catch unless the coin is in place
and however many times the spindle is turned after the insertion of a coin, no discharge
of the coin can take place until the inside button is pushed back, the coin being then
pushed along and out of the saddle by the catch plate stud.
intahan 1886
H. GARDNER,
166, Fleet Street, London,
Agent for the said W. S. Simpson.

page_text: This invention relates to fitting to ordinary locks used for doors, an appliance or
combination of appliances that the catch shall be held "shot" until a coin say a penny
is dropped into and through a slit said coin then lodging upon a saddle and forming
a block which is utilized when the handle is turned to draw back the catch to enable a
person to enter an apartment said person either closing the door after him or the door
be closed by a spring or by its own weight.
The coin is retained in the saddle until released by the movement of a sliding knob
from the inside of the door on the person leaving the apartment.
For the purpose of my invention, which show on the annexed drawings
Figures 1, 2, 3 and 4, I arrange in connection with the spindle socket A a pivotted
arm B terminating in a rounded or other shaped saddle C fitted to slide on a plate or
stud D. This saddle C has an aperture in its upper end into which a stud E on the
underside of the catch stem F is free to enter.
The stem B of the saddle has a shaped projection or blade G and the catch stem F
has a notched plate H, this being directly under the slit I for steadying the coin while
on the saddle Û. The catch stem F has a projecting button J, shown in dotted lines,
which can only be moved from the inside of the door, the handle of spindle being on
the outside to operate the socket plate A.
In Figure 1 I have shown the lock mechanism in its normal position the catch being
shot by the spring K and a coin, say a penny, dropped through the slit I on to the
saddle C.
On a person then turning the handle the socket plate A draws the saddle into the
position indicated at Figure 2 and puts the penny in contact with the shoulder L of
the notched plate H so that the coin forms a sort of wedge between the saddle Cand
the shoulder La continued movement or turn of the handle causing the stem B to
pull the catch F back as indicated at Figure 3, the door being then free to open; the
handle is now released and the catch and also the saddle spring back to their first
positions and the door closed. The room or apartment is now supposed to be occupied,
and to open the door from the inside, the person has to push the catch F back by the
knob J which movement causes the stud E to pass well through the slot in the saddle C
and push the coin along into the position shown in Figure 4, where by a curved
plate M on the stem B the coin slides sideways out of the saddle C into the box or
receptacle N.

page_text: There is no connection between the spindle socket A and the catch F unless the coin
is in place, and however many times the spindle is turned after the insertion of a coin,
no discharge of the coin can take place until the inside button is pushed back, the coin
being then pushed along and out of the saddle by the catch plate stud E.
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 particular arrangement of the saddle C operated from the handle socket A
and used in combination with the notched and shouldered plate H, L between which
the coin forms a wedge to enable the catch F to be operated as described and
substantially as shown on the annexed drawings.
2. So making the catch plate F of a door lock that it has no connection with the
ordinary spindle A except when a coin is between them substantially as shown on the
annexed drawings and as and for the purpose described.
71
H. GARDNER,
166, Fleet Street, London,
Agent for the said W. S. Simpson.
LOOK
Lina 10 Con OT