Year: 1886

page_text: Date of Application, 5th Nov., 1886.
Complete Left, 5th Aug., 1887.
Complete Accepted, 6th Sept., 1887.
We EDWIN VERITY and JOSHUA MARLAND VERITY both of Call Lane Leeds in
the County of York Ironmongers and BENJAMIN BANKS of Lees Yard Meadow Lane
aforesaid Brass Worker do hereby declare the nature of this invention to be as
follows:-
Our Invention relates to the actuating of Latch bolts of Locks or any ordinary
form of Latch that is now applied to doors and worked by springs or weights our
object being to obtain an equal presure when opperated upon by any means.
In carrying out our invention we construct this latch bolt of any convenient form
now in use with an extended tail werein is formed a slot to receive a follower with
any arrangement for turning pushing pulling or lifting the latch. We now pivot or
hang our lever in such a position that the opposite end bears upon the recessed end
of the latch bolt presure to which may be applied by spring or dead weight of much
less dimensions than now used so that when the Handle is turned pushed pulled or
lifted or the latch forced in by the act of closing the door an uniform presure is always
obtained.
Dated this with date of Navamhna 1000

page_text: COMPLETE SPECIFICATION.
An Improved Lever Latch for Doors and Analogous Articles.
We EDWIN VERITY and JOSHUA MARLAND VERITY. of Call Lane Leeds Ironmongers
and BENJAMIN BANKS of Lees Yard Meadow Lane Leeds Brass Worker all in the
County of York, do hereby declare the nature of this invention and in what
manner the same to be performed, to be particularly described and ascertained
in and by the following statement :-
Our invention relates to the actuating of Latch bolts of Locks or any ordinary
form of Latch that is now applied to doors and worked by springs or weights our
object been to obtain an equal presure when opperated upon by any means.
In carrying out our invention we construct this latch bolt of any convenient form
with an extended tail werein is formed a slot to receive a follower and with any
arrangement for turning pushing pulling or lifting the latch, we now pivot or
hang our lever in such a position that the opposite end bears upon the recessed end
of the latch bolt presure to which may be applied by a dead weight or spring of much
less dimensions than now used and wether the Handle be turned pushed pulled or
lifted or the latch forced in by the act of shuting the door an uniform presure will
always be obtained.
And in order that our said invention may be better understood reference is hereby
made to the accompanying drawings in which simular letters of reference indicate
corrisponding parts.
Fig. 1 is elevation of latch with front plate removed showing action of dead
weight.
Fig. 2 is sectional plan of same.
Fig. 3 is front elevation of latch with front plate removed showing action of spring
or weight when actuated by pushing and pulling the knobs.
Fig. 4 is sectional plan of same.
Fig. 5 is vertical section through knobs showing tumbler for operating latch bolt
by pushing and pulling the knobs.
A is the dead weight B the pivot on which it hangs C the opposite pivot were it
exerts its presure on the recessed end of the latch bolt D arm attached to the
spindle E opperating the weight or spring when the latch bolt is worked by turning
the knobs or handles F is the partly revolving latch bolt end which pushes the latch
bolt back when it comes in contact with the striking plate G is arm for operating
the weight or spring when the push and pull motion is applied H is lever used when
spring instead of weight is applied K is tumbler for operating arm G. M is space
for fixing the lock bolt and its parts.

page_text: Having now particulary described and invention and in what manner the same is to
be performed we declare that what we claim is
The method of Hanging the weight A and the lever H when worked by a spring
and the general combination and arrangements of the several respective parts
constructed and opperated substantially as herein before discribed and shown in
drawings.