Improvements in and relating to Locks and Latches for Doors and the like.
Year: 1899

page_text: Date of Application, 21st June, 1899
Complete Specification Left, 20th Dec., 1899-Accepted, 10th Mar., 1900.
PROVISIONAL SPECIFICATION.
:
Improvements in and relating to Locks and Latches for Doors
and the like.
WILLIAM HENRY LEE, South Downs, Redruth, Cornwall, Carpenter and Joiner,
do hereby declare the nature of this invention to be as follows:-
A new and useful improvement in a combined lock and latch of which the
following is a description. This invention relates to a class of locks and latches
which have the knobs or handles connected to the sides of a door and to the
lock by means of a spindle made in two parts one end of each of the parts is
permanently connected with the knob or handle the other ends are made in the
shape of a dove-tail and are fastned together within the lock and latch. A
tablet and tablet case is made to cover the spindle in place of the usual roseates.
When the lock and latch is put into position the dovetail shaped ends are placed
together within the tumbler of the combined lock and latch and screwed tightly
together by a setscrew in the tumbler which is turned by a screwdriver that is
made to opperate through a hole in the front plate of the case..
A face plate is made to cover this hole when it is finished.
In connection with the combined lock and latch a tablet case and escutcheon
plate is made to fit against the sides of the door and over the position of the
combined lock and latch. The escutcheon plate to cover the key hole. The
tablet case to cover the junction, where the handle is riveted to the spindle. A
metalic tablet is made to fit into the tablet case on which may be stamped or
engraved the name or number of the house or room to which it is fixed.
The object of this invention is to make a cheap attractive and servicable
lock and latch easily applied without injury to the door on account of the small
space it will occupy.
100
1000
Improvements in and relating to Locks and Latches for Doors
and the like.
I, WILLIAM HENRY LEE, of South Downs, Redruth, in the County of Cornwall,
Joiner, 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:-
This invention has for object the provision of an improved combined lock and
latch which shall be of practical and cheap construction, attractive in appear-
ance, and easy to apply to doors. My invention is illustrated by the accom-
panying drawings in which:
Fig. 1 represents a vertical elevation of the lock and latch showing the case,

page_text: the face plate, the striking plate, the latch bolt, the tumbler, the lock bolt and
part of the internal mechanism operating the lock bolt.
Fig. 2 is a longitudinal sectional elevation of one of the knobs, it being the
one which when in position, is on the inner side of the door, and the same figure
also illustrates the spindle passing through the tumbler, and the oscillating
washer hereinafter described.
Fig. 3 is a plan view of one of the levers, and Fig. 4 a vertical elevation of
the staple acting as guide to the lock bolt.
Fig. 5 is a plan view of the reciprocating rod, the supplemental tumbler, and
the case holding the same.
Fig. 6 is a top plan view of the case holding the said reciprocating rod, and
the same figure also shows the ornamental tablet frame.
Fig. 7 is a plan view of the oscillating washer.
Fig. 8 is a longitudinal sectional elevation of the second knob which, when
in position, is on the outer side of the door, and the same figure also illustrates
the spindle, and the supplemental tumbler in section.
Like letters in the various figures denote like parts.
The case a in Fig. 1 is of usual make, with the exception of its having a
perforation in the front plate c for the purpose hereinafter mentioned. The
spindle is by preference in two parts (in the form of a wedge or dove tail)
as shown by dd in Figures 1 and 2. In fixing the lock together the two
parts dare placed together, passed through the tumbler e and firmly secured
together and to the said tumbler by means of the set screw f, which is tightened
by means of a screw driver made to operate through the perforation already
referred to, and the knob g in Fig. 2, is secured to the inner or room end of the
spindle, in any appropriate manner, whilst to the other end of the same spindle,
is fixed the oscillating washer h.
In Fig. 1, represents the latch holt and the lock bolt, both being of usual
and convenient make.
i
The lock bolt has at its rear end a projection engaging with the staple /
shown in Figs. 1 and 4, for the purpose mentioned. m is a spring acting upon
the rear end of the latch bolt and tending to hold it forward.
Fig. 3, is an illustration of one of the levers shown in interrupted lines in
Fig. 1, the same being pivotally secured at one end to the case a by means of a
pin or the like.
nis a spring acting upon the said levers, and o, as will be apparent, is the
key hole. is the face plate made to cover the front plate e and the perforation
therein, and q is the striking plate secured to the door post.
In Fig. 5 is the case holding the reciprocating rod s.
The said case r is
formed of a flat bottom and a circumferential flange t, and has perforated projec-
tions u, u, u permitting of its being secured to the door by means of screws or
their equivalents.
The reciprocating rod s is provided with a flange v at one end for the recep-
tion of the oscillating washer and has a slot in the centre into which the tip
of the spindle d is passed, and the other end of the rod is formed in the shape
of a loop or the like.
In Fig. 5 is also shown the supplemental tumbler in its normal position,
and Fig. 8 shows the same tumbler in section secured to the spindle y. This
tumbler moves the reciprocating rod backward when the knob is turned.
The case holding the reciprocating rod is fixed to the outside of the door in
the position shown in Fig. 6 and in a manner so that the flanged forward end of
the reciprocating rod shall engage with the outwardly projecting oscillating
washer h secured to the spindle d.
is a perforation in the case r through which the spindle y is passed and in
which it works.
The ornamental frame * covers the forward extremity of the case and is

page_text: Its
secured to the door by means of screws or in any other appropriate manner.
open centre is intended to receive a tablet bearing the name of the occupant
of the room to which it is fixed, a number, or any other desired distinguishing
mark.
The key hole may be covered by an oscillating escutcheon plate of any desired
shape and make fastened to the tablet frame in any suitable manner.
It will be understood that as soon as the knob z is turned, with the intention
of opening the door, the supplemental tumbler & connected with it will move the
reciprocating rod backward, and at the same time the washer h, whose part
engages with the lateral projection of the flange v, will be oscillated in the desired
direction, thus moving the tumbler e backward and causing it to draw the latch
bolt out of engagement with the door post. The same effect will be produced
in reversed order, when the knob q is turned from the inside of the room with
the intention of opening the door.
The lock bolt is operated by a key which is constructed to pass through various
wards moving different levers in its revolution, all of which are of usual and
suitable make.
A combined lock and latch such as I have herein before described can be
cheaply made and is attractive in appearance, as also easy to apply to doors, on
account of the small amount of wood required to be removed to provide the
necessary space for the lock, and it provides for the secure fastening of doors.
I do not wish the accompanying drawings to be taken as representing the truc
dimensions of the various parts or their accurate proportions in relation to each
other, which can easily be found by constructing a simple experimental model.
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) In a latch or combined lock and latch a spindle formed of two parts and a
tumbler such as e substantially as described and illustrated.
2) In a latch or combined lock and latch a spindle formed of two parts, a
tumbler such as e and a means for securing the same together substantially as
described and illustrated.
3) In a latch or combined lock and latch a means for securing a tumbler
such as e to the spindle substantially as described and shown.
4) In a latch or combined lock and latch a tumbler such as e and a means for
securing it to the spindle substantially as described and illustrated.
5) In a latch or combined lock and latch a reciprocating rod, a supplemental
tumbler such as and a case such as to hold the same, substantially as
described and shown.
6) In a latch or combined lock and latch a reciprocating rod, a supplemental
tumbler such as a, an oscillating washer such as h, and a case such as 7, sub-
stantially as described and illustrated.
7) In a latch or combined lock and latch a case such as a having a perforated
front plate for the purpose mentioned, and a face plate to fit against the front
plate, substantially as described and shown.
8) In combination with a latch or combined lock and latch a tablet frame and
tablet substantially as described and illustrated.
9) In a combined lock and latch the combination of the various.parts substan-
tially as described and shown.
Dated 1 101 1
1000
ALFRED DORST.
Agent for Applicant.