Improvements in Front Door Locks Fitted with Both Latching and Locking Bolts.
Year: 1898

page_text: Date of Application, 7th Sept., 1898
Complete Specification Left, 6th June, 1899-Accepted, 5th Aug., 1899
PROVISIONAL SPECIFICATION.
Improvements in Front Door Locks Fitted with Both Latching and
Locking Bolts.
I, GEORGE ANSLOW, of 130, Newhall Street, Willenhall, in the County of
Stafford, Lock and Latch Manufacturer, do hereby declare the nature of this in-
vention to be as follows:
This invention has for its object certain improvements in the type of latch
bolt mechanism of rim and mortice locks which are fitted with both latching
and locking bolts in which a T-shaped lever operated through the medium of
a follower has been employed to draw back the latch bolt, one of the arms of the
T-head pressing against a lug at the upper side of a widened-out portion at the
rear of the bolt tail when the knob is turned in one direction, and the other
arm of the T-head pressing against a projection at the lower side of such widened-
out portion of the bolt tail when the knob is turned in the opposite direction,
whereby such mechanism is modified for the purpose of adapting it for use with
front door locks fitted with both latching and locking bolts, and in a manner
which renders the manipulation of the latching bolts of such locks both easier
and otherwise more convenient.
According to this invention, in lieu of a follower for operating the T-shaped
lever the backward arm or stalk of such lever is formed or provided with a side-
way portion which passes through a slot formed through the front plate of the
case and is connected direct with the knob or handle. This slot is curved con-
centrically with the axis about which the T-shaped lever turns, and thus the
latch bolt is drawn back by simply lifting or depressing the knob or handle
instead of by turning it, the action being consequently much easier and more
convenient. From one side of the widened out portion of the bolt tail an exten-
sion is carried back sufficiently far to enable the one rein of a double reined
spring to press thereagainst while the other rein of such spring presses against
the hinder end of the case.
Data hit I of Cantom 1000
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Front Door Locks Fitted with both Latching and
Locking Bolts.
I, GEORGE ANSLOW, of 130, Newhall Street, Willenhall, in the County of
Stafford, Lock and Latch Manufacturer, do hereby declare the nature of my said
Price S71

page_text: invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
My invention has for its object certain improvements in the type of latch
bolt mechanism of rim and mortice locks which are fitted with both latching
and locking bolts in which a T-shaped lever operated through the medium of
a follower has been employed to draw back the latch bolt, one of the arms of the
T-head pressing against a lug at the upper side of a widened-out portion at the
rear of the. bolt tail when the knob is turned in one direction, and the other
arm of the T-head pressing against a projection at the lower side of such widened-
out portion of the bolt. tail when the knob is turned in the opposite direction,
whereby such mechanism is modified for the purpose of adapting it for use with
front door locks fitted with both latching and locking bolts, and in a manner.
which renders the manipulation of the latching bolts of such locks both easier
and otherwise more convenient.
According to my invention, in lieu of a follower for operating the T-shaped
lever the backward arm or stalk of such lever is formed or provided with a side-
way portion which passes through a slot formed through the front plate of the
case and is connected direct with the knob or handle. This slot is curved con-
centrically with the axis about which the T-shaped lever turns, and thus the
Jatch bolt is drawn back by simply lifting or depressing the knob or handle
instead of by turning it, the action being consequently much easier and more
convenient. From one side of the widened out portion of the bolt tail an exten-
sion is carried back sufficiently far to enable the one rein of a double reined
spring to press there against while the other rein of such spring presses against
the hinder end of the case.
In order that my invention may be more clearly understood and easily carried
into practical effect I have appended hereunto a double sized sheet of drawings
upon which I have illustrated my improved door-lock.
Figure 1 is a front view of my door-lock complete.
Figure 2 is a back view of Figure 1 with the back-plate of the case removed.
Figures 3 & 4 are similar views to Figure 2 shewing the latch bolt drawn back
by lifting and depressing respectively.
Figure 5 is a detached view of the T-shaped lever with the knob or handle
connected thereto.
Figure is a plan view of the widened out portion of the bolt tail.
In carrying my invention into practice I form or provide the T-shaped
lever A with the projection or sideway portion or neck piece which passes
through the slot formed in the front plate 2 of the case B and this projection
or sideway portion a¹ screws into or is otherwise connected to the knob or handle I)
as clearly shewn at Figure 5. The latch bolt E is formed at the rear end with
the widened out portion e¹ and the projecting lugs e² and e³ against which the
rounded ends a² & a³ on the ends of the head of the lever A press respectively.
Formed on one side of the widened out portion e¹ of the bolt tail say on that end
where the luge is formed is the extension or projection et extending sufficiently
far to enable the rein or arm s¹ of the spring to press against it the other rein
or arm of which presses against the inner side of the end 3 of the case as
clearly shewn at Figures 2, 3 & 4. The slot in which the sideway portion or
projection or neck piece a¹ works is curved concentrically with the axis about
or upon which the T shaped lever A turns so that to operate or draw back the
latch bolt the knob or handle is simply lifted or depressed instead of being
turned the action of lifting or depressing the knob of handle being easier and
more convenient.
If the handle or knob is lifted the end a² of the lever A presses against the
lug 2 and draws back the latch bolt E and the extension piece e compresses the
spring S as clearly shewn at Figure 3 but immediately the handle is released
this spring S shoots or forces the latch bolt back to its normal position as clearly

page_text: shewn at Figure 2. Also if the handle or knob is depressed the end a³ of the
lever A presses against the lug e³ and draws back the latch bolt E in a similar
manner as clearly shewn at Figure 4.
It will be evident the neck of the handle or knob may be extended and fixed
into or onto the stalk of the T shaped lever A or the projection or sideway
portion a' may be shortened and the neck of the knob or handle be fixed thereto.
The lever F which works about or upon a pivot on the lock bolt H is provided
for the purpose of drawing back the latch bolt E by means of the key which when
turned in the direction of the arrow as shewn at Figure 2 presses against the tail
piece and as the other end f fits in a slot in the front end of the latch bolt
the lifting of the tail piece causes this end to force back the latch bolt 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:―
CLAIMS.
First: The improvements in front door locks fitted with both latching and
locking bolts consisting essentially in the means for operating the Ṭ shaped
lever such as A by connecting it directly with the knob or handle through a
such like radial slot as b₁ formed in a stationary portion as the front plate B the
said lever A in its turn operating the latch bolt E which is provided with an
extension or projection such as from one of the reins or arms of the spring $
to press against in the manner substantially as herein set forth and as shewn upon
the accompanying sheet of drawings.
Second: In rim and mortice locks connecting the T shaped lever such as A
directly to the knob or handle in the manner and for the purpose substantially
as herein set forth and as shewn upon the accompanying sheet of drawings.
Third: In rim and mortice locks the quadrant or radial slot in which the
neck of the handle slides as and for the purpose substantially as herein set forth
and as shewn upon the accompanying sheet of drawings.
Fourth In locks of the kind the combination of a neck piece a¹ with the
handle and with the slot b¹ and other necessary parts for the purpose substantially
as herein set forth and as shewn upon the accompanying sheet of drawings.
Dated this 5th day of June 1899.
GEORGE ANSLOW,
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicant, 77, Colmore Row, Birmingham.