Year: 1886

page_text: Date of Application, 13th Aug., 1886.
Complete Left, 13th May, 1887.
Complete Accepted, 14th June, 1887.
I, GEORGE NOBES, of 27. Dudley Grove, Harrow Road, in the County of Middlesex,
Plumber, do hereby declare the nature of my said invention to be as follows :-
The object of my invention is to manufacture an improved form of lock, with one
bolt for opening, shutting, and locking doors, without the aid of knobs and spindles ;
the door being opened and shut by merely pushing or pulling the door; but being
readily locked when required; the lock being of very simple construction, and not
liable to get out of order.
My improved lock can be used as a slam lock for single or double acting (swing)
doors. The outer end of the bolt is made cylindrical, with a semi-globular nozzle for
striking and entering the plate. The remainder of the bolt is rectangular, and the
back end is provided with two small projections, having a hole in each, which slide
upon two parallel pins fixed at the back end of the lock. Upon these pins spiral
springs are threaded, which press the bolt outwards; the pins acting as guides to
the bolt.
In ordinary use a small portion, only of the bolt projects beyond the edge of the
lock, and the striking plate has a corresponding hole, into which the bolt is thrust by
the action of the springs, and which action retains the door in a closed position.
The nozzle of the bolt being semi-globular, it is readily pressed backwards by the
striking plate, when closing or opening the door.
One or more tumbler or tumblers is or are fitted to the bolt, which retain the bolt
in the desired position. But when it is required to be locked, the key lifts the
tumbler or tumblers, and this allows the bolt to project farther through the striking
plate, thereby locking the door securely. The shoulder formed where the rectangular
portion joins the cylindrical portion of the bolt, forms a shoulder, for preventing the
bolt from being shot too far outwards by the springs, when locked.
My invention is chiefly designed as a mortise lock, for which purpose the guide
pins are fitted to a detachable plate, which is screwed to the back end of the case; but
it will be obvious that, with slight modifications the lock may be adapted to many
other positions.
GEORGE DOWNING,
Agent for Applicant,

page_text: ☐ I GEORGE NOBES of 27 Dudley Grove Harrow Road, in the County of Middlesex,
Plumber, 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 manufacture an improved form of lock, with one
bolt for opening, shutting, and locking doors, without the aid of knobs and spindles ;
the door being opened and shut by merely pushing or pulling the door; but being
readily locked when required; the lock being of very simple construction, and not
liable to get out of order.
My improved lock can be used as a slam lock for single or double acting (swing)
doors. The outer end of the bolt is made cylindrical, with a semi-globular nozzle for
striking and entering the plate. The remainder of the bolt is rectangular, and the
back end is provided with two small projections or flanges, having a hole in each,
which slide upon two parallel pins fixed at the back end of the lock. Upon these
pins spiral springs are threaded, which press the bolt outwards; the pins acting as
guides to the bolt.
In ordinary use a small portion only of the bolt projects beyond the edge of the
lock, and the striking plate has a corresponding hole, into which the bolt is thrust by
the action of the springs and which action retains the door in a closed position―The
nozzle of the bolt being semi-globular, it is readily pressed backwards by the striking
plate when closing or opening the door.
One or more tumbler or tumblers is or are fitted to the bolt, which retain the bolt
in the desired position. But when it is required to be locked, the key lifts the
tumbler or tumblers, and this allows the bolt to project farther through the striking
plate, thereby locking the door securely.
The shoulders formed where the rectangular portion joins the cylindrical portion of
the bolt, form stops for preventing the bolt from being shot too far outwards.
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 a front view of the face plate of the lock, and Fig. 2 is a side view of the
lock with the side plate removed.
a is the bolt projecting a short distance beyond the face plate. bb are two pro-
jections or flanges formed in one with the back end of the bolt. c is a separate plate
which is pressed by the spiral spring d, d, against the flange b, b, and against the
pins h, h. The pins e, e are fixed to the back plate f, and these pins pass through
holes formed in the plate c, and also through holes in the flanges b, b,--9, g¹ are two
tumblers which are lifted by the key, when the bolt is being shot forward.
The striking plate is similar to that shewn in fig. 1, with a hole in or through the
same for the bolt.

page_text: When the door is shut or slammed to, the bolt a recedes to the level of the face
plate, until it arrives opposite to the hole in the striking plate into which the bolt
enters and secures the door, for all ordinary purposes.
When it is desired to lock the door, a key is used, which lifts the tumblers and
shoots the bolt as far as shewn by the dotted lines; the shoulders a¹ a¹ preventing the
bolt from shooting too far beyond the face plate.
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 manufacture and use of locks adapted to the operations of opening and
closing the doors to which they are fitted, by simple pressure upon the door and also
adaptable for securely locking such doors when desired, substantially as hereinbefore
described and shewn on the Drawings.
2. The general construction, combination and arrangement of the several and
respective parts together forming my invention of an improved door lock, substantially
as hereinbefore described and shewn on the Drawings.
GEO. DOWNING,
Agent for Applicant.