Improvements in Double Bolt Locks, suitable for use with Trunks, Boxes, and other receptacles.
Year: 1891

page_text: Date of Application, 26th Mar., 1891
Complete Specification Left, 24th Dec., 1891-Accepted, 30th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Double Bolt Locks, suitable for use with Trunks,
Boxes, and other receptacles.
I, JOSEPH BATES, of Scarboro Works, Temple Street, Wolverhampton, in the
County of Stafford, Brassfounder, do hereby declare the nature of this invention
to be as follows:-
My invention relates to an improved construction and arrangement of double
bolt lock intended for application to trunks, boxes or other receptacles, and its
object is to supply a simple, cheap and effective lock which has the advantage of a
double bolt.
In carrying my invention into effect I construct a lock suitable for finishing flush
with or under the moulding of a trunk or box, and I provide an aperture at each
end of the front plate to receive the projection from each of two hasps. Two bolts
are arranged which shoot into the hasp staples and so securely fasten or close the
trunk or box. One key in the centre of the lock operates both bolts. The key
acts directly on one bolt only and on one player or set of players operating with
that bolt and the second or opposing bolt is operated from the first bolt by means
of racks and an intervening toothed wheel. The tail of the bolt which is directly
actuated by the key and controlled by a player or set of players or levers, is
prolonged and formed into a toothed rack, the teeth of which engage a rotating
The second
toothed wheel rotating freely round a centre fixed to the lock case.
bolt has also a toothed rack formed on a portion of its surface and this rack gears
into the toothed wheel opposing the first rack. The second bolt is therefore moved
by the first bolt by the action of the toothed wheel so that it moves in an opposite
direction to the first bolt. The action of one key therefore shouts both bolts into
locking position simultaneously. By this construction and arrangement of lock I
am enabled to apply a cheap and effective lock to a trunk or box in such manner
that two hasps or staples or bossheads attached to the cover or lid at considerable
distances apart are securely held by two bolts and so the cover or lid is held down
more efficiently and safely than when one bolt only is adopted. At the same time
I am enabled to attach the lock in a more sightly inanner and present a flush finish
on the exterior.
Various modifications of double bolt, hasps, staples or bossheads may be made
without departing from a characteristic feature of my invention which lies in the
racks and toothed wheel.
Dhis ath1 f 1001
MARKS & CLERK,
13. Temple Street, Birmingham, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Double Bolt Locks, suitable for use with Trunks,
Boxes, and other receptacles.
1, JOSEPH BATES, of Scarboro' Works, Temple Street, Wolverhampton, in the
County of Stafford, Brassfounder, 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 :-
My invention relates to an improved construction and arrangement of double
bolt lock, intended for application to trunks, boxes, or other receptacles, and its

page_text: object is to supply a simple, cheap and effective lock, which has the advantage of a
double bolt.
Referring to the accompanying sheet of drawings, in which Figures 1, 2, 3, 4,
and 5 illustrate one modification or mode of carrying my invention into effect;
Figures 1 and 2 show face views of the mechanism of a lock,
Figure 3 is a sectional plan,
Figure 4 is an external elevation of a part of a box fitted with my lock, and
Figure 5 is a vertical section through box and lock.
In carrying my invention into effect, I construct a lock suitable for finishing flush
with, or inside the moulding of a trunk or box, and I provide an aperture at each
end of the front plate to receive the projection from each of two hasps. The
said apertures are shown at k, I (Figure 4) and the hinging hasps are indicated
at e Two bolts a, b, Figures 1, 2, 3 and 4 are arranged which shoot into the
hasp staples, and so securely fasten or close the trunk or box. One key in the
centre of the lock operates both bolts. The key acts directly on one bolt only,
the bolt in the drawings, and that bolt is fitted with any known or usual levers or
players as d, so that one player or set of players operate with the bolt a, and the
second or opposing bolt is operated from the first bolt by means of racks, and an
intervening toothed wheel. The tail of the bolt a which is directly actuated by the
key and controlled by a player or set of players or levers, is prolonged and
formed into a toothed rack ', the teeth of which engage a rotating toothed wheel e
rotating freely round a centre fixed to the lock case." The second bolt has also a
toothed rack formed in a portion of its surface, and this rack gears into a
toothed wheel c, opposing the first rack. The second bolt is therefore moved by
the first bolt a, by the action of the toothed wheel c, so that it moves in an opposite
direction to the first bolt.
The action of one key therefore shoots both bolts and into locking position
simultaneously. By this construction and arrangement of lock I am enabled to
apply a cheap and effective lock to a trunk or box, in such manner that two hasps
or staples or bossheads attached to the cover or lid at considerable distances apart,
are securely held by two bolts and so the cover or lid is held down more efficiently
and safely, than when one holt only is adopted. At the same time I am enabled to
attach the lock in a more sightly manner and present a flush finish on the exterior.
Various modifications of double bolt, hasps, staples or bossheads may be made
without departing from a characteristic feature of my invention which lies in the
racks and toothed wheels.
In Figures 1 and 2, different positions of the bolts a andare shown; in Figure 1
the bolts are in their inner position, while in Figure 2 the bolts a and bare in their
locked position, fully shot out. In Figure the exterior of a box is shown and
g is part of the lid, while his part of the box. Figure 5 shows clearly in vertical
section the mode of arranging the lock in the moulding m of a metal box, the front
platen being mounted on the said moulding.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
(1) A double bolt lock, in which one bolt is operated from the other holt by
means of racks formed on or attached to both bolts, and an intermediate toothed
wheel gearing into both bolts, substantially as hereinbefore described and illustrated
in the accompanying drawings.
(2) The double bolt and double acting lock as hereinbefore described and as
illustrated in the drawings.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.