IMPROVEMENTS IN THE CONSTRUCTION OF LOCKS FOR.
Year: 1882

page_text: LETTERS PATENT to John Jackson the younger and Charles Sheekey both
of 40 Great Smith Street Westminster in the County of Middlesex Engineers
for an Invention of IMPROVEMENTS IN THE CONSTRUCTION OF LOCKS FOR.
PROVISIONAL SPECIFICATION left by the said John Jackson the younger
and. Charles Sheekey at the Office of the Commissioners of Patents on the.
30th September 1882.
"
JOHN JACKSON, the younger, and CHARLES SHEEKEY, both of 40 Great Smith:
Street, Westminster, in the County of Middlesex, Engineers, IMPROVEMENTS IN
THE CONSTRUCTION OF LOCKS FOR PORTMANTEAUS, BAGS AND OTHER ANALOGOUS,
PURPOSES,"
【
Whereas in certain Letters Patent granted to us the said John Jackson
the younger and Charles Sheekey, dated 26 October 1881, No 4682, we have
specified and described a certain form and arrangement of extending bar, as applied
to bag locks, or locks for portmanteaus, bags, and other analogous purposes,
(herein after called by the general name of bag locks), such extending bar being
shewn, in and by Figs 18 and 20 and the description therein referring to such
figures.
The object of our present invention is to provide other or additional locking'
apparatus in connection with such extending bar, in lieu of or in addition to the
locking apparatus shewn in such Specification.
According to our present invention, the extending bar has a central slot or
elongated hole, cut transversely to its length, also a similar slot at each end thereof,
and any number of intermediate slots according to the length and requirements of
such extending bar.
The opposite side of the mouth of the bag is fitted with as many hasps or catches
as there are slots in the extending bar. These ha ps are flat sided and suitably
formed to enter such slots, and pass through and catch behind such extending bar.
The slotted extending bar is held up and in place by spiral springs and screws as
S

page_text: described in the said Letters Patent 468281; or any other equivalent mechanical
device may be adopted for this purpose. In cases where the extending bar is very
long the springs are arranged otherwise than at the ends thereof.
When the extending bar is depressed the hasps cease to hold to it, and the bag
can be opened, and when the bag is being closed the sloping ends of the hasps
temporarily depress the slotted extending bar and allow the bag to be locked.
By means of the lock, which rests upon the extending bar, such bar can be
depressed by the finger or thumb for the purpose of opening the bag.
The lock is composed of a cylindrical piece of metal (by preference of brass), the
lower end thereof resting upon the slotted extending bar, and having a transverse
groove which the bar fits into; the upper end of the lock passing through the frame
to the outside of the bag, vertically. The lock may, however, be made rectangular,
or of any other suitable form.
About midway between the two ends of the lock a shoulder is formed to prevent
the lock from being forced out of the frame; the bar, by means of its springs,
always pressing the lock upwards. The lock has also a saw-cut about midway of
its length, transversely, in which a small spiral spring is inserted. This spring is
retained in its place by means of a pin inserted, longitudinally, in the lock. There
is a hole bored through the lock, longitudinally, but excentrically, and crossing the
saw-cut, wherein a locking bolt is inserted. This locking bolt is constructed with
a lower cylindrical portion: next thereto an enlargement or shoulder: then a
conical portion, forming a frustum of a cone: next a cylindrical portion, with a
conical or countersunk recess, from the centre of which, finally, rises a pin upon
which the key acts.
When the locking bolt is placed in position in the lock, the spring presses into
the recess formed by the junction of the cone with the shoulder, in which position
the bag, although closed, is unlocked. When the key is used to force the locking
bolt further down, the conical portion pushes the spring aside, and the next
cylindrical portion slides past the spring, until the spring passes the upper end
thereof, where the pin joins the upper end of the locking bolt, against which pin it
then rests, and prevents the upward return of the locking bolt. The bag is then
locked.
It will thus be seen that the spring acts as a tumbler to retain the locking bolt
in the required position, and the recesses in the bolt act as receivers for such
tumbler.
The key is cylindrical in shape, with an ordinary handle, and is bored a suitable
distance from its end to accommodate the pin-end of the locking bolt. Its extreme
end, however, is shaped so as to form a frustum of a cone, exactly fitting into the
countersunk portion of the locking bolt. When the key is inserted into the lock,
this conical end of the key forces away the spring from its lodgment, and enables
the operator to depress the lock and extending bar, and to open the bag.
The bolt may be shot with the key while the bag is open, and when the bag is
shut in the ordinary manner, it will then be and remain locked, and cannot be again
opened without the aid of the key.
The locking is effected by the contact of the locking bolt with the upper side of
one of the basps, which contact prevents the depression of the extending bar.
It is obvious that various modifications of such locks, and adaptations to other
articles and things besides portmanteaus and bags, may be made.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Jackson the younger and Charles Sheekey in the Great
Seal Patent Office on the 30th March 1883.
JOHN JACKSON the younger and CHARLES SHEEKEY both of 40 Great Smith
Street Westminster in the County of Middlesex Engineers "IMPROVEMENTS IN
THE CONSTRUCTION OF LOCKS FOR PORTMANTEAUS BAGS, AND OTHER ANALOGOUS
PURPOSES
"
Whereas in certain Letters Patent granted to us the said John Jackson the
younger and Charles Sheekey dated twenty sixth October One thousand eight
hundred and eighty one N° 4682 we have specified and described a certain form
and arrangement of extending bar as applied to bag locks, or locks for port-
manteaus, bags, and other analogous purposes (hereinafter called by the general
name of bag locks) such extending bar being shown in and by Figures 18 and 20
and the description therein referring to such figures.
The object of our present invention is to provide other or additional locking
apparatus in connection with such extending bar, in lieu or in addition to the
locking apparatus shewn in such Specification.
According to our present invention, the extending bar has a central slot or-
elongated hole cut transversely to its length, also a similar slot at each end thereof,
and any number of intermediate slots according to the length and requirements of
such extending bar.
The opposite side of the mouth of the bag is fitted with as many hasps or.
catches as there are slots in the extending bar. These hasps are flat sided and
suitably formed to enter, such slots, and pass through and catch behind such.
extending bar.
The slotted extending bar is held up in place by spiral springs and screws as
described in, the said Letters Patent 468281; or by any other equivalent mechanical
device may be adopted for this purpose.
"
In cases where the extending bar is very long the springs are arranged otherwise
than at the ends thereof.
When the extending bar is depressed the hasps cease to hold it and the bag
can be opened and when the bag is being closed the sloping ends of the hasps
temporarily depress the slotted extending bar and allow the bag to be locked.
By means of the lock which rests upon the extending bar, such bar can be
depressed by the finger or thumb for the purpose of opening the bag.
The lock is composed of a cylindrical piece of metal (by preference of brass) the
lower end thereof resting upon the slotted extending bar, and having a transverse
groove which the bar fits into; the upper end of the lock passing through the frame
to the outside of the bag, vertically.
The lock may however be made rectangular or of any other suitable form, for
various kinds of locks.
About midway between the two ends of the lock a shoulder is formed to prevent
the lock from being forced out of the frame; the bar, by means of its springs,
always pressing the lock upwards. The lock has also a saw-cut about midway of
its length, transversely, in which a small spiral spring is inserted. This spring is
retained in its place, by means of a pin inserted longitudinally in the lock. There
is a hole bored through the lock, longitudinally, but eccentrically, and crossing the
saw-cut, wherein a locking bolt is inserted. This locking bolt is constructed with a
lower cylindrical portion: next thereto an enlargement or shoulder: then a conical
portion forming a frustum of a cone: next a cylindrical portion, with a conical.
or countersunk recess, from the centre of which, finally, rises a pin upon which the
key acts..

page_text: When the locking bolt is placed in position in the lock, the spring presses into
the recess formed by the junction of the cone with the shoulder, in which position
the bag, although closed is unlocked. When the key is used to force the locking
bolt further down, the conical portion pushes the spring aside, and the next
cylindrical portion slides past the spring, until the spring passes the upper end
thereof where the pin joins the upper end of the locking bolt, against which pin
it then rests, and prevents the upward return of the locking bolt. The bag is then
locked.
It will thus be seen that the spring acts as a tumbler to retain the locking bolt
in the required position, and the recesses in the bolt act as receivers for such
tumbler.
The key is cylindrical in shape with an ordinary handle and is bored a suitable
distance from its end to accommodate the pin end of the locking bolt. Its extreme
end however, is shaped so as to form a frustum of a cone, exactly fitting into the
countersunk portion of the locking bolt. When the key is inserted into the lock,
this conical end of the key forces away the spring from its lodgment, and enables
the operator to depress the lock and extending bar, and to open the bag.
The bolt may be shot with the key while the bag is open, and when the bag is
shut in the ordinary manner, it will then be and remain locked, and cannot be again
opened without the aid of the key.
The locking is effected by the contact of the locking bolt with the upper
side of one of the hasps, which contact prevents the depression of the extending
bar.
It is obvious that various modifications of such locks and adaptations to other
articles and things besides portmanteaus and bags, may be made.
A simple action of pressing to lock and unlock may be obtained by cutting a saw
cut from the lower end of the key into a hole drilled crossways, the two parts or
halves thus formed are compressed together and the end of the key then lodges
upon the bolt as shewn in Fig: 7 and presses down the bolt thus locking-When
the key is pressed down heavily the divided parts of the key expand and in their
descent throw off the Tumbler and at the same time grip the bolt so that the action
of withdrawing the key raises the bolt and thus unlocks.
And in order that our said invention may be clearly understood reference is
hereby made to the accompanying drawings.
Figs: 1. 2 and 3 are respectively plan front and side views of the lock fitted on
the bar described in our patent N° 468281.
a is the body of the lock which contains the bolt marked b-c is the spring
tumbler held in the lock by the pin d. The lower end of the lock rests in the slot
upon the bar marked e which is held upwards by the Springs F. the holes in the
bar marked g receive the opposite catches marked h and when the bolt descends
it falls upon the centre catch and thus prevents the depressing of the bar c and it
is locked. The operation of the key marked i when pressed heavily throws off the
spring, and upon its withdrawal raises the bolt b when the bar is unlocked
Figs 4 and 5 shew a front and side view of a trunk lock with the key without,
the slot or hole drilled cross-ways and the end of the bolt angular, a is the body
of the lock, b the hasp or catch, c is the bolt, and d the tumbler spring which is held
in its saw cut by the pin marked e, f is the key inserted-When the key is
inserted it forces the bolt c into a hole in the hasp band upon its withdrawal the
tumbler spring d prevents the bolt c from moving, and thus locks the hasp Upon
the insertion of the key it throws off the spring d when by raising the hasp it
strikes the coned end of the bolt c forward and thus unlocks by throwing the bolt
and key forward
It is obvious that padlocks, bottle-locks and strap locks can be made to operate
in the same manner and locks for doors arranged by simply inserting the key upon
an angle
: Figs 7 and 8 shew the relative positions of the split key-bolt and tumbler,
locked and unlocked-a is the bolt b the spring and à the key Fir 7 locked and-

page_text: Fig: 8 unlocked-Figs 9. 10. and 11 shew the formation of the bolt b, tumbler c
and key to operate the locking and unlocking without a split key
Having thus particularly described the nature of our said invention and in
what manner the same is to be performed we claim :-
1. The manufacture and use of the locking bolt, key, spring and tumbler, for the
purposes and in manner substantially as hereinbefore described and shewn on the
drawings, or any mere modification thereof
2. The manufacture and use of the extending bar in combination with the
arrangements hereinbefore described and shewn on the drawings, or any mere
modification thereof.
3. The manufacture combination and use of mechanism, substantially as herein-
before described together forming our "improvements in the construction of locks
for portmanteaus bags, and other analogous purposes."
In witness whereof I the said John Jackson the younger on behalf of myself
and the said Charles Skeekey have hereunto set my hand and seal the
thirtieth day of March in the year of our Lord One thousand eight
hundred and eighty three.