Improvements in the Construction of Locks and Latches for Doors and other Parts.
Year: 1886

page_text: Date of Application, 5th Mar., 1886.
Complete Left, 6th Dec., 1886.
Complete Accepted, 25th Jan., 1887.
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Locks and Latches for Doors
and other Parts.
I, HENRY ROTHERY, of Beckermet, Carnforth, in the County of Cumberland,
Joiner, do hereby declare the nature of my said invention, to be as follows :—
This Invention relates to an improved construction of combined lock latch and bolt;
the parts of which namely the lock and the latch and bolt may also be used separately.
In carrying the Invention into effect there is adapted to the upper or lower edge of a
case containing the locking details a tubular or other conveniently formed extension
or case longitudinally within which a bolt or latch has a certain freedom of movement.
The front of this caso is so formed or adapted as to permit of the forward bovilled end of
the bolt or latch projecting to the required extent, and at a rearward part its sides are
formed with opposite slots, and through such slots and the bolt the spindle of the
handles is passed, so that by withdrawing the same from either side of the door or
other part, the bolt or latch can be withdrawn as required, the length of the said slots
determining the extent of movement of the said bolt or lateh, which is constantly kept
impelled forward by a helical or other spring situated between its rear end and the
inner end of its case. The said latch or bolt may be locked in its projecting or
fastening position by suitable locking details projecting from the locking case into the
said latch or bolt case, and the latch or bolt on its side adjacent to the said locking
case is slotted in such a position as that such locking detail will enter and engage with
such slot, when required, at the time the bolt or latch is in its most forward or locking
position.
A suitable arrangement of the locking contrivances contained within such locking
case consists of a sliding bolt under the control of a tumbler in such a manner as that
such bolt can he retained either within the said locking case, or projecting as aforesaid
into the case containing the said latch or bolt, and which sliding bolt operates by a
key which after removing such tumbler from either of its retaining positions operates
the said sliding bolt in accordance with the direction in which the key is turned, the
tumbler then being automatically returned to its said locking position by a spring
acting upon its free end.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicant.

page_text: Improvements in the Construction of Locks and Latches for Doors
and other Parts.
I, HENRY ROTHERY, of Beckermet, Carnforth, in the County of Cumberland, Joiner,
do hereby declare the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
This Invention relates to an improved construction of combined lock and latch or
bolt, the parts of which namely the lock and the latch or bolt may also be used
separately.
On the accompanying drawings.
Fig. 1, represents in sectional elevation a combined lock and latch constructed in
accordance with the present improvements; and Figs. 2, and, 3, represent sections
thereof through the lines a.. and c.-d.
In carrying the Invention into effect, there is adapted to the upper or lower edge of
a case, 1, containing the locking details, a tubular or other conveniently formed
extension or case, 2, longitudinally within which a bolt or latch, 3, has a certain
freedom of movement. The front of the case, 2, is so formed or adapted as to permit
of the forward bevilled end, 4, of the bolt or latch, 3, projecting to the required extent,
and at a rearward part it is formed with a slot, 5, through which and through a slot, 6,
formed in the bolt, 3, an extension, 7, from the spindle, 8, of the handles is passed, so
so that by turning the spindle from either side of the door or other part,
the bolt or latch can be withdrawn as required. Or the spindle, 8 may be
passed laterally through the enlarged part of the bolt, 3 at about the
part indicated by the extension, 7, and work in slots (5.) formed in the
opposite sides of the case, 2, so that the latch may be withdrawn as required by
withdrawing the spindle, 8, towards the spring, 10. The length of the said slots may
be caused to determine the extent of movement of the bolt or latch, or this may he
effected by reducing the internal diameter of the case, 2, as shown at, 9, or by other
suitable means. The bolt or latch, 3, is constantly kept inpelled forward by a helical
or other spring, 10, situated between its rear end and the inner end of the
case, 2.
The latch or bolt may be locked in its projecting or fastening position, represented in
Figs. 1, and, 2, by a suitable locking device, 11, projecting from the locking case, 1,
into the latch or bolt case, 2, and the latch or bolt is at an adjacent part reduced in
diameter or so otherwise formed and adapted as that such locking device, 11, will enter
into the case, 2, behind the enlarged part, 12, of the bolt, 3, when the latter is in its most
forward or locking position, and will retain it in such position as shown in Figs. 2
and 3.
The sliding locking bolt, 11, is under the control of a tumbler, 13, in such a manner
as that such bolt can be retained either within the locking case, 1, or projecting as
aforesaid into the case, 2, and is operated by a key which after removing such tumbler

page_text: from either of its retaining positions operates the sliding holt, 1, in accordance with
the direction in which the key is turned, the tumbler, 13, then being automatically
returned to its said locking position by an attached spring, 14.
The improved latch or bolt, 3, and its operating parts, may be used separately from
the locking contrivance hereinbefore referred to, and in lieu of the latter a peg or
pin may be inserted through the case, 2, to retain the bolt, 3, in its projecting position
if required.
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 combination of the latch or bolt, 3, adapted with means of drawing it back
from either side of a door, with a spring, 10, constantly tending to impel it forward,
and with a locking device adapted for keeping it in a locked position, when required,
substantially as hereinbefore described.
2. The combined lock and latch constructed with their operating parts substantially
as hereinbefore described.
3. The application and use of the hereinbefore described improved latch apart from
the locking device.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicant.