Year: 1888

page_text: Date of Application, 7th Feb., 1888
Complete Specification Left, 7th Nov., 1888
Complete Specification Accepted, 7th Dec., 1888
I, ALFRED GREIG of Suffolk House Cannon Street in the City of London Engineer
do hereby declare the nature of this invention to be as follows:-
Doors are in many cases provided with apparatus which does not permit them to be
opened except when a coin is introduced into a receptacle connected with the releasing
apparatus, but most of the arrangements of doors and coin releasing apparatus now in
use are subject to the objection that when one person opens the door to come out
another person may enter before the door is closed and locked, and may thus have the
advantage of entering without payment.
My invention relates to apparatus so arranged that it is impossible for a person to
enter in this manner. For this purpose, besides the ordinary outer door, I provide a
second inner door far enough apart from the former to accommodate a person between
the two doors, and I connect these two doors by a sliding rod or an oscillating lever
or otherwise in such a manner that neither can be opened unless the other is closed,
the connection being held by a catch in such a position that the inner door is closed
while the outer door is free. A person desiring to enter can pass the outer door but
finds the inner door closed against him. On introducing a coin he releases this inner
door but he cannot open it until he has first closed the outer door behind him. He
can then open the inner door and then he locks the outer door. When he comes
out he must first close the inner door before he can open the outer door, and the
inner door being then held by the catch, cannot again be opened until a coin is
introduced.
The inner door may be more or less open as a grating or as a part door, sufficient to
prevent access unless it be opened.

page_text: I, ALFRED GREIG, of Suffolk House, Cannon Street, in the City 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 :-
•
Doors are in many cases provided with apparatus which does not permit them to be
opened except when a coin is introduced into a receptacle connected with the releasing
apparatus, but most of the arrangements of doors and coin releasing apparatus now in
use are subject to the objection that when one person opens the door to come out
another person may enter before the door is closed and locked and may thus have the
advantage of entering without payment.
My invention relates to apparatus so arranged that it is impossible for a person to
enter in this manner.
A
For this purpose, besides the ordinary outer door I provide a second inner door fur
enough apart from the foriner to accommodate a person between the two doors, and I
connect these two doors by a rod or an oscillating lever or otherwise in such a manner
tlunt neither can be opened unless the other is closed the connection being held by a
catch in such a position that the inner door is closed while the outer door is free.
person desiring to enter can pass the outer door but finds the inner door closed
against him. Ou introducing a coin he releases this inner door but he cannot open it
until he has first closed the outer door behind bim. He can then open the inner door
and then he locks the outer door. When he comes out he must first close the inner
door before he can open the outer door and the inner door being then hold by the
catch, cannot again be opened until a coin is introduced.
The inner door may be more or less open as a grating or as a part door, sufficient to
prevent access unless it be opened.
As an example I shall describe the application of my invention to a closet referring
to the accompanying drawings. Fig. 1 is a section shewing the outer.door A closed,
and the inner door or flap B in its back position leaving the seat C accessible. Fig. 2
shews the outer door A open, the flap B being then in its front position to render the
seat Cinaccessible; Fig. 3 is a plan of the rod connecting the door A and the flap B.
Fig. 4 is a section to an enlarged scale of the coin releasing apparatus when the
flap B is forward. Fig. 5 is a corresponding section with the flap B back. Fig. 6 is a
plan and Fig. 7 is a front elevation of the coin releasing apparatus applied to the
flap B.
On the outer door A 1 fix an arm D which is linked by a rod E with spherical
joint F to the flap B, this flap being hinged on a horizontal axis G and the connecting
link E being so adjusted that when the door A is closed as shewn in Fig. 1, the flap is
moved back leaving the seat C accessible, but when the door A is open as shewn in
Fig. 2, the flap B is moved forward preventing access to the seat C. To the flap B is
fixed the money box H in which is pivotted a lever K carrying at its end a pair of
rollers L that can run along an inclined guide M.

page_text: To the lever K is attached a segment N having on its face a number of ratchet
teeth, and in front of this toothed segment there is a segment O within the box H
guided on a rod P with a spring pressing it towards N. In the cover of the box H is
a hole Q for the insertion of a coin such as a penny.
When this is inserted the segment O is pushed in opposition to the spring so far
away from the face of the segment N that the ratchet teeth of N are not obstructed by
a projection on O, in which case the flap B can be pushed back closing the door A,
and as the rollers L travel along the incline M the segment N moves along in front
of O carrying the coin onward until it drops into the box H. It will be seen that
when a person opens the door A the flap B is brought forward to the position shewn
in Fig. 2 obstructing access to the seat C. The person having entered the closet
cannot move back the flap B nor close the door A until he inserts the coin at Q
whereupon he can close A moving back B as indicated in Fig. 1 so getting access to
the seat. He cannot leave the closet without opening the door A, and in doing so he
causes the flap B to take its forward position as shewn in Fig. 2 in which position it
is locked by tho ratchet teeth of N being obstructed by a projection on O.
Although I have described the combined action of a door and a flap with coin
releasing apparatus, obviously two doors might be thus combined according to the
character of the apartment or passage which they have to control.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The construction of two doors or their equivalents so connected that the one is
closed when the other is opened with coin releasing apparatus, substantially as and for
the purpose set forth.
ABEL & IMRAY,
Agents for the Applicant.