Improvements in Locks.
Year: 1890

page_text: Date of Application, 4th Dec., 1890
Complete Specification Left, 4th Sept., 1891-Accepted, 24th Oct., 1891
.
PROVISIONAL SPECIFICATION.
Improvements in Locks.
I, JOSEPH KAYE, of the firm of Messrs. Joseph Kaye and Sons, Limited of
South Accommodation Road, Leeds, in the County of York, Lock Manufacturers,
do hereby declare the nature of this invention to be as follows:
This invention relates to certain improvements in locks, more particularly
applicable to rim and flush night latches, whereby greater facilities are afforded for
opening the same than hitherto.
My invention consists of a thumb piece fixed to the lock case, a corresponding
finger piece is fixed to the sliding bolt of the lock; the two pieces are, when the
bolt is shot out by the spring, at such a distance apart as to allow of the finger and
thunb gripping the two, by which action the bolt is slid back, both pieces are so
formed as to admit of finger and thumb having a grip on the lock and in the act of
gripping and pulling the bolt is shot back and the door opened.
Dated this 3rd day of December 1890.
JOHN WAUGH,
Agent.
>
COMPLETE SPECIFICATION.
Improvements in Locks.
I, JOSEPH KAYE, of the firm of Joseph Kaye and Sons, Limited, of South
Accommodation Road, Leeds, in the County of York, Lock Manufacturers, 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 relates to certain improvements in locks, and is particularly
applicable to rim and flush night latches whereby greater facilities are afforded for
opening the same in the interior and more difficult to open on the outside except
by a properly constructed key than hitherto.
In the accompanying drawings
Fig. 1. represents a view of a lock made according to my invention.
Fig. 2. is a plan of the same.
Fig. 3. a view of the interior of the lock showing the sliding lock bolt withdrawn.
Fig. 4. a similar view showing the sliding bolt protruding beyond the lock case
Hange.
Fig. 5. an elevation of the striking plate, and
Fig. 6. a plan of the same.
To the back plate A. of the lock case is secured a thumb piece B. a corresponding
finger piece C. being secured to the sliding bolt D. of the lock; the two pieces B.
and C. are, when the sliding bolt D. is "shot" out by the compressed spiral
spring E. at such a distance apart, as to allow of the finger and thumb gripping the
two, by which action the sliding bolt D. is moved backwards and the door opened.
On the back plate A. is mounted a bar F. by means of pin G. in such a manner
that, the said bar may oscillate thereon, which is provided with a projection H. so
that on moving the said bar on piu G. until it engages with one side or the other
of the projection J. on the flange of finger piece C. the sliding bolt D. is secured
with the end protruding beyond the lock casing, or withdrawn so that the door may
be opened without the operation of the said sliding bolt.

page_text: The interior of the lock may be provided with any number of levers K. which
are mounted on a fulcrum pin L. at the inner end of the lock case, the sliding
bolt D. being operated in a similar manner as described in my Specification
No. 5311 of 1889.
The sliding bolt D. engages with the lock plate M. prepared with two projecting
pieces N. shown by detail Fig. 7. between which an opening is formed of a width
equal to the wide ends of the levers K. at K' so that, before the sliding bolt D.
can be operated by the key, all the levers K. must be raised such a distance that,
the ends at K are exactly opposite the opening between the projecting pieces N.
otherwise the sliding bolt D. cannot be operated by the key; thus by this
arrangement of levers and opening between the projecting pieces N. greater security
is given to the lock.
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:
1. A lock in which the sliding bolt D. is combined with a finger piece C. and
thumb piece B. arranged substantially in the manner and for the purpose as
hereinbefore set forth.
2. A. lock in which the sliding bolt D. is combined with a finger piece C. thunb
piece B. and oscillating bar F. all arranged substantially in the manner and for the
purpose as herein before set forth.
Dated this 3rd day of Sentember 1901
JOHN WAUGH,
Agent.