Year: 1886

page_text: Date of Application, 6th Apr., 1886.
Complete Left, 5th Jan., 1887.
Complete Accepted, 8th Feb., 1887.
I, ENOCH JONES, of 24 Doctor's Piece, Willenhall in the County of Stafford, lock
manufacturer, do hereby declare the nature of this invention to be as follows
Chain padlocks, as ordinarily constructed, have one end of the chain connected
with the bottom of the lock case, the other end being fastened by first passing the
shackle of the padlock through an enlarged link on the end of the chain and then
locking the shackle. This is a somewhat clumsy and inconvenient method of
fastening and the object of this invention is, by dispensing with the shackle and
substituting improved mechanism in place thereof, to render the fastening and
unfastening of the lock more convenient and generally to improve the appearance of
the lock.
In lieu of the shackle, a pin or stud, carried by a lever fulcrumed within
the case, or by a sliding bolt carried within the case, is employed in combination
with a fixed block, and the chain is locked by passing the pin through one of
the links. The pin or stud projects sideways from the lever or holt, and when
such pin or stud is passed through a link of the chain, to lock it, the unconnected
end of the pin or stud butts against the fixed block, or enters slightly within a
recess in the face of such block. A. tumbler is geared with the lever or sliding
bolt, aforesaid, so that when such lever or bolt is in its locked position the tumbler
takes behind a shoulder thereon and prevents the lever, or bolt, from being drawn
back until the tumbler has been first raised by the key. As the key is turned to
unlock the padlock the tumbler is first raised clear of the shoulder, aforesaid, and
then the bit of the key presses back the lever, or bolt, and as the key is turned down-
wards from the tumbler the latter descends again and gears into a niche in the lever,
or bolt, so as to maintain such lever, or bolt, in its backward or unlocked position.
The outer side of this niche, however, is or may be inclined, and when this is the case
a moderate pressure at the back of the upper end of the lever, or at the back of the
part of the bolt which carries the pin or stud, will force the lever or bolt forwards
again to close it, at the same time raising the tumbler out of the niche. If the niche
is not inclined, as aforesaid, the tumbler must be raised by the key before the lever, or

page_text: bolt, can be pushed to, to lock it. When the lever, or bolt, is completely closed the
tumbler again falls behind the shoulder, aforesaid, and consequently holds the lever or
bolt in its locked position. The lock is thus unlocked by means of the key, and
locked simply by pressing to the pin or stud, or by first raising the tumbler by means
of the key, and then pressing to the pin or stud but, of course, the mechanism may
be modified so that the lock is both locked as well as unlocked entirely by means of
the key.
The part of the lever, or bolt, from which the pin or stud projects is, preferably,
formed as a block to correspond with the fixed block against which the pin or stud
closes, and this part and the fixed block preferably stand up above the top of the main
part of the case, but the front and back plates of the case have, preferably, each a part
carried up so as to cover, respectively, the front and back faces of the fixed block, and
of the part corresponding thereto, when the latter is locked. The links of the chain
are, preferably, made somewhat large compared with the size of rod from which they
are made, and pockets are formed out from the front and back plates of the lock case,
or are riveted or otherwise fixed thereto, so as to admit of the passage of a link as it
is placed in position for being locked by the pin, aforesaid. Any link of the chain
may be locked by the pin, by simply passing one of its ends down the two pockets
and thus bringing it into position in front of the pin or stud, whilst the latter is
unlocked or open.
A stop is, of course, formed to the downward movement of
the link.
STEPHEN WATKINS,
Wolverhampton,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Chain Padlocks.
I, ENOCH JONES, of 24 Doctor's Piece, Willenhall in the County of Stafford, lock
manufacturer, 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, reference being had to the accompanying drawings and the letters
of reference marked thereon (that is to say):-
Chain padlocks, as ordinarily constructed, have one end of the chain connected with
the lock case, the other end being fastened by first passing the shackle of the padlock
through an enlarged link on the end of the chain and then locking the shackle. This is a
somewhat clumsy and inconvenient method of fastening. Chain padlocks have, however,
been constructed much as an ordinary padlock, but without a shackle, and the outer
or loose end of the chain has been fastened by shooting the holt through the end link
thereof. The object of this invention is to effect an improvement both in the
construction and appearance of the lock.

page_text: According to this invention a stud, carried by an arm pivoted within the case, is
employed in combination with a fixed block, and the chain is locked by passing the
stud through one of the links. The studs projects sideways from the arm, and when
such stud is passed through a link of the chain, to lock it, the unconnected end of the
stud butts against the fixed block, or enters slightly within a recess in the face of
such block.
This invention will be clearly understood on reference to the accompanying draw-
ings, of which figure 1. is a front elevation of a chain padlock constructed according
to this invention, with the cap-plate removed to shew the interior mechanism, and
shews the padlock unfastened; figure 2 is a corresponding view to figure 1, but shews
the padlock fastened; figure 3 is a transverse vertical section taken on line er of
figure 2, looking from the left-hand side of the view and figure 4 is a plan of
figure 2 but with the link, hereinafter described, shewn in section. The remaining
figures are detached views of details and will be described later on. The same letters
of reference occurring upon two or more of the views indicate corresponding parts.
A vertical arm A is pivoted on a pin a within the main part B B of the case. The
upper end of the arm extends above the main part of the case and is formed as a
head, and has a stud formed or fixed to project therefrom. The back-plate and cap-
plate of the case are carried up above the main part, and the head C fits easily
between them. A block D hollowed out from one side, to save weight, is riveted
between the back-plate and cap-plate, in position to come opposite to the stud b. One
end of the chain is fastened, as is usual in this class of padlocks, to a ring or link F
pivoted to the bottom of the case, and the outer end link hor, preferably, several of
the links at the outer end of the chain, are formed to the shape shewn by detached
view figure 7, and the outer link, or either of the links formed to such shape is
fastened to the padlock by being inserted between the block D and the stud b, whilst
the stud is back from the block, as shewn by figure 1, and the arm A then moved
inwards, so as to pass the stud through the link, and locked in such position. A
tumbler E is fulerumed within the case so as to gear with the arm A. A detached
plan of the tumbler is shown by figure 5, and a back elevation by figure 6. Figure 9
illustrates a detached front view of part of the arm A, so as to shew clearly the parts
which are behind the tumbler. A spring c, bearing upon the top of the tumbler,
tends to press it downwards, and thus when the arm A has been pushed inwards with
the stud b against the block D, as shewn by figure 2, the straight side d of a pro-
jection e on the back of the tumbler comes into position behind a shoulder on the
arm and locks the arm in its closed position. To unlock the padlock the tumbler E is
raised by a key (turned in the usual direction for unlocking) so as to bring the pro-
jection e clear of the shoulder; and as the key is continued to be turned in the same
direction, and while still holding up the tumbler so as to keep the projection e clear of
the shoulder a part of the key-bit, coming in contact with the party of the arm,
moves back the arm sufficiently to allow the link to be drawn out between the
block D and the stud ; and as the key is still further turned in the same direction
the tumbler is again depressed by the spring, and a curved or slanted side i of the
projection e gears with a curved or slanted part n formed in the arm A, and holds
the arm in its open position shewn by figure 1. When the padlock is to be fastened
to a link of the chain, the link is first placed between the stud and block D, as
before described, and the arm is then pushed inwards, by means of the finger bearing
against the back of the head C, so as to push the stud b through the link. The shape
of the parts and readily admits of the arm being pushed in by hand, as the
pressure thus brought on the curved or slanted surfaces causes the tumbler to rise
against the pressure of the spring C. When the arm is pushed into its closed position
the tumbler is pressed down again by the spring and locks the arm as before described.
To accommodate a link which is wider than the width between the back-plate and
cap-plate of the case, as will usually be found to be the case, the parts of such
back-plate and cap-plate between which a link is inserted are curved out, as shewn by
figure 4, and the part of the case within which a link is inserted is boxed in around its
four sides and bottom (when the padlock is fastened) to exclude the weather and dirt,

page_text: by means of the curved parts rr, the block D and fail-piece s thereon formed to the
same width, the head C and a part thereunder also formed to the same width, and a
plate formed to fit under the projecting bottom edges of the curved parts rr of the
back-plate and cap-plate, as shewn by figure 3, and to hear under the tail-piece s of
the block. A detached plan of this plate is shewn by figure 8. Provision is made
for fixing this plate by punching out of the back-plate and cap-plate of the case slots,
to receive the rounded ends a¹¹ of the plate, immediately below the parts which are
to be curved out as before described. As the case is put together, after the curved
parts have been formed, the rounded ends a¹a of the plate are passed through the
back-plate and cap-plate, in position as shewn by figure 3, and a straight-ended
part of the plate acts as a distance-piece between the back plate and cap-plate.
The block D may be riveted to the back plate and cap-plate by means of a rivet c¹
formed solid with the block.
It will be obvious that the lock may be locked as well as unlocked by simply
turning the key, either by forming the edges i and a vertical and placing a spring to
bear against the back edge of the arm, so that as the tumbler is raised in turning the
key from right to left the arm will be forced in by the spring, or, in lieu of the spring,
forming a part on the arm against which the key will press to move the arm inwards.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to he performed, I declare that what I claim is :-
1. A chain padlock constructed and operating by means of a pivoted locking lever,
substantially as described.
2. In a chain padlock the combination of an arm pivoted within the case and
having a stud or projection thereon, for insertion within a link of the chain, with a
block or face or analogous part between which and such arm the link is placed
previously to the insertion of the stud therein, and with means by which such arm
may be locked and unlocked, substantially as described, for the purpose set forth.
3. The combination of an arm A pivoted within the case, a stud or projection b
thereon, a block or face or analogous part D, a tumbler E and spring for pressing
thereupon, and means by which such tumbler gears with the arm for locking it, and
for retaining it in its unlocked position until pushed or moved in as described,
substantially as described, for the purpose set forth.
4. The means by which the tumbler E is made to gear with the arm A, for the
purpose of locking it, and of retaining it in its unlocked position until pushed in as
described, substantially as described, for the purpose set forth.
5. In a chain padlock, the curved-out parts on the back-plate and cap-plate of the
case, respectively, substantially as and for the purpose set forth.
6. The plate fixed in the manner described, for the purpose set forth.
STEPHEN WATKINS,
Wolverhampton,
Agent for the Applicant.