A COMBINED LOCK AND LIFTING LATCH FOR DOORS
Year: 1884

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I, GEORGE HENRY BRATT, of 20 Mander Street, Wolverhampton, in the county
of Stafford, lock manufacturer, do hereby declaro the nature of my invention for
A COMBINED LOCK AND LIFTING LATCH FOR DOORS, to be as follows:-
According to this invention the lifting-bolt of a Norfolk or Suffolk latch for
doors is carried on the same plate with the case of the lock, the latch bolt passing
preferably through a slotted hole at each end of the lock case below the key-holo
thus dispensing with its usual staple. The staples for the lock and the catch for
the latch, respectively, are also carried upon one plate. A projection stands up on
the outer end of the lifting-bolt so that when the lock bolt is shot out the head of
this bolt is immediately over the projection and thus securely locks the lifting bolt
also. A portion of the bottom of the lock staple is cut away to allow for the
projection aforesaid. The lock caso is preferably curved in at the lower back
corner so as to be clear of the tail end of the thumb-bit. The latch is pressed
down (preferably) by means of a spring so as to ensure certainty of action as the
door is closed.
This combined lock and lifting latch is simpler and cheaper to make; the latch
is stronger and the fastening, having both the bolts locked is more secure, and the
whole is more conveniently fixed in place and has a much nonter appearance, than
when the lock and latch are made separato and independent from each other.
Dated this tenth day of January 1884.

page_text: J, GEORGE HENRY BRATT, of 20 Mander Street, Wolverhampton, in the County
of Stafford, lock manufacturer, do hereby declare the nature of my invention for,
A COMBINED LOCK AND LIFTING LATCH FOR DOORS, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying drawings and the
letters of reference marked thereon:-
According to this invention the lifting bolt of a Norfolk or-Suffolk-latch for
doors is carried on the same plate with the case of the lock, the lifting bolt
preferably passing through the lock case below the key hole, or being carried
within such case, thus dispensing with its usual staple. The staple for the lock and
the catch for the latch, respectively, are also carried upon one plate. A projection
stands upon the outer end of the lifting bolt so that, when the locking-bolt is shot
out, the head of this bolt is immediately over the projection and thus securely locks
-the-lifting-bolt also. A portion of the bottom of the lock staple is cut away to
allow for the projection, aforesaid. The latch is pressed down (preferably)-by-
means of a spring so as to ensure certainty of action as the door is closed.
Figure 1 of the accompanying drawings illustrates in front elevation, with the
cap-plato removed, one modification of a combined-lock-and-lifting latch,
constructed according to this invention; and-figure 2-is a.section_through_the_lock
staple and catch taken on line xx of figure 1, shewing the bolt heads in position
therein. The same letters of referenco occurring upon both views_indicate
corresponding parts. A is the plate carrying the lock mechanism and also the
lifting-bolt B of the latch. O is the ordinary locking-bolt, and DD the rim or case
of the lock. The lifting-bolt B is carried on a fulcrum-pin at E, and passes, as
shewn, through slotted openings a a¹ in the rim or case D D and in the foreplate,
respectively. F is a plate carrying the staple C for the locking-bolt, and the
catch H for the lifting-bolt. The striking part of the lifting-bolt is of course
beveled as shewn at c. A projection J, is formed upon the end of the lifting-bolt
so as to be immediately under the head of the bolt C when the latter is locked. Ia
order to allow clearance for the projection J, as the bolt B strikes or is lifted, the
lower left-hand corner of the staple G is cut away or omitted, as shewn. K is a
notch or opening formed in the lower edge of the plate A to receive the lifter or
thumb-bit of the latch. L is a knob (shewn by dotted lines) at the outer face of
the lock, and is connected through a slotted hole (also shewn by dotted lines) in
the cap-plate with the lifting-bolt B so that the latch may be lifted by means of
this knob, or by the tail end of the thumb-bit, as desired. N is a feather-spring
which is preferably employed to press upon the top of the lifting-bolt B and thus
assist its action.
Figure 3 is a corresponding view to figure 1, but illustrates a somewhat different
modification of my invention from that illustrated by figure 1. In this arrangement
the cap-plate is preferably on the inner side of the case, and the illustration is
shewn with the outer plate omitted, and with the fore-plate in section. Figure 4
is a section taken on line y y of figure 3, shewing a section through the lock-staple
and catch for the latch, with the bolt heads therein, and also an end view of the lock
and latch case; and figure 5 is a section taken on line of figure 3. The same
letters of reference occurring upon any two or more of the figures 3, 4, and 5
indicate corresponding parts. A is the plate carrying the lock mechanism and
also the lifting-bolt B₁ of the latch. C¹ is the ordinary locking-bolt, and D' D' the
rim or case of the lock. The lifting-bolt B' is carried on a fulcrum-pin at E

page_text: within the lock case, and this forward end of the bolt B' passes out through the
fore-plate of the case as in figure 1. F¹ is a plate carrying the staple G₁ for
the locking-bolt and the catch H¹ for the lifting-bolt. A projection J' is formed
upon the end of the lifting-bolt, corresponding in shape and purpose with tho
projection J figure 1. The lower part of the staple G₁ is cut away or omitted for
the purpose already described with reference to the staple & figure 1. K' is a notch
or opening formed in the lower edge of the case for a corresponding purpose to tho
notch or opening K figure 1, and a projection M is formed upon the lower side of
the bolt B¹ so as to bring the bearing of the thumb-bit or lifter sufficiently low in
the opening K. The bolt B¹ is provided with a lifting-knob L' at the outer face
of the case, corresponding to the kuob L figure 1. N¹ is a feather spring,
corresponding to the spring N figure 1. 6 is a rim rising to the level of the front
face of the staple G', and forms with such staple and the catch H' a sort of box
staple.
According to another modification of this invention, the lifting-bolt is carried
upon the plate of the lock, but immediately below the case, the front end passing
through a staple. This modification will be readily understood without need for
further illustration.
The handle furniture of the latch is omitted for simplicity of illustration. It is
of course fixed to the wood work of the door in the usual manner.
The combined lock and lifting latch, according to either modification described, is
simpler and cheaper to make, the latch is stronger, and the fastening, having both
the bolts locked, is more secure, and the whole is more conveniently fixed in place
and has a much neater appearance, than when the lock and latch are made separate
and independent from each other.
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. A combined lock and lifting latch for all kinds of doors, such combination
being formed by carrying the lifting bolt of a Norfolk or Suffolk latch upon the
same plate with the case of a lock, and carrying such lifting-bolt either through
the case in the manner illustrated by figure 1 herewith, or within the case in the
manner illustrated by figure 3 herewith, or below the case and with its forward
end passing through a staple, substantially as and for the purpose herein described
and shewn (according to the first and second modifications) by the drawings.
2. In a combined lock and lifting-latch for all kinds of doors, the projection
upon the outer end of the lifting latch, substantially as and for the purpose herein
described and shewn by the drawings.
Dated this 19th day of September 1884.