Improvements in Padlocks and like Fastenings.
Year: 1897

page_text: Date of Application, 12th Mar., 1897-Accepted, 1st May, 1897
COMPLETE SPECIFICATION.
Improvements in Padlocks and like Fastenings.
I, CHARLES DEAN of Walsall Road, 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:-
This invention relates to padlocks and fastenings of a kindred nature, and has
for one of its objects, the self locking and self opening or releasing of the shackle
or equivalent connector, and for another object the simplification of the arrangement
of the parts of the lock mechanism, and for another object, the compactness of the
movements.
By my improvements the shackle is automatically fastened and opened or thrown
back when released.
Thus according to my invention, as hereinafter described, the shackle when
pressed home, becomes self-locked, and when released by the turning of the key for
unlocking rises or is ejected from the lock casing.
Figure 1 of the accompanying drawing represents partly in elevation and partly
in vertical section, a padlock, constructed, arranged and provided with improvements
according to my invention with the shackle shown closed or locked.
Figure 2 represents a like view as Figure 1, but with the levers which may come
in front of the oscillating or tumbler bolt removed, so as to more clearly show the
locking part of the mechanism.
Figure 3 represents a like sectional view as Figure 2, but with the shackle thrown
back after being released.
Figure 4 represents an edge view of Figure 3 and looking in the direction of the
arrow, and with the box casing upon one side removed.
Figure 5 represents a like edge view as Figure 4 but looking in the direction of
the dotted arrow.
Figure 6 represents elevations of the lever separately and
Figure 7 represents elevations of the oscillating bolts separately, and although
I have shown two bolts, yet I wish it to be understood that I may employ one,
three or other number of bolts, as desired.
The same letters of reference indicate corresponding parts in Figures 1 to 7.
a is the shackle with one end a² jointedly hinged at a to the ear or lug ³, of the
covering plate, of the lock casing b, consisting of a drum-shaped box casing
having a gap at , wherethrough the inclined tip a', which is gapped at as, of the
other end a, of the shackle a, inwardly passes for locking.
Located within the interior of the lock casing, and oscillating upon the pin or
post c, are oscillating or tumbler bolts d, d', each having tail ends d², which come
against bearing stops d, and have at the front end, a head with inclined
crown d', against which the inclined tip a¹ of the said shackle a, impinges when
closed for locking.
Pressing upon the tail ends , come the free ends of springs e, whose other
ends e, are made fast to the fixed stud e, carried by the lock plate or casing.
Now mounted upon the pin or post, are levers f and 9, which are pressed
home by independent springs f, g, which is common with locks provided with
evers of this type.
Made fast to the said post c or to any fixed part of the casing or equivalent

page_text: supplementary ejecting spring h, with its free end h', located within the casing
approximate to the gap or entrance 6', and coming within the path of the tip.
end a of the shackle a. i is a key hole, represented in dotted lines.
OPERATION.
Assuming the lock to be opened and in the position as represented in
Figure 3, close the shackle, when its tip end a', strikes the crown d³, of the
head d, and turns the bolts upon their centres until the beads are clear of the
shackle tip, when the springs which have been compressed by the oscillation of
the bolts return the said bolts, with their heads snapping into the gaps in the
sbackle, which then becomes locked. The act of pressing home the shackle, com-
presses the free and tail end of the spring h, into the position as represented in
Figures 1 and 2.
To release the shackle and unfasten the lock turn the key when both bolts
and levers are lifted and the nose ends of the former taken out of the range of
the gap as of the shackle which now being free, is automatically lifted or ejected
by the stored up energy of the spring expending itself upon the shackle tip end.
Figure 8 represents two other varying forms of levers of a different shape to
those represented in the preceding figures.
Figure 9 represents my invention applied to a lock with sliding bolt or bolts
instead of with oscillating bolt or bolts as in the preceding figures.
Figure 10 represents the bolt of the same and Figure 11 represents the lever.
a in the shackle with gapped fore enda, the lock casing containing the lock
movements, is a sliding bolt having a stump, a gup and a spring,
9 is an oscillating lever with a gute y, wherein the stump & engages, and is an
ejecting or lifting spring for throwing back the shackle when released by the
unlocking of the lock. is a stump on the lock casing passing the gap d², aud
over which the bolt slides as a guide. By the closing of the shackle a, its tip
end a, strikes the curved nose d³ of the bolt d, when the said bolt is made to slide
back in the direction of the dotted arrow, and on the said nose coming coincident
with the gap a' of the shackle, it snaps into the said gap by the back action of the
spring d
Figure 12 represents a modified form of my invention in which the opening of
the shackle is effected by a spring coiled around the joint pin and with the
terminal ends of the wire bearing respectively upon the shackle and cusing.
a the shackle and a³ its joint. is a coiled spring with the arms n', n³,
pressing against a shoulder a³, on the shackle, and a shoulder 67, of the casing b,
respectively.
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 :-
First. In padlocks and like fastenings, throwing back the shackle, after releasing
by unlocking, by an auxiliary spring, put into an active condition by the closing of
the said shackle, substantially as described and set forth.
Secondly. In padlocks and like fastenings, throwing back the shackle, after
releasing by unlocking, by an auxiliary spring, located within the interior of the
lock casing and disposed within the path of the tip of the shackle and which is put
into an active condition when the said shackle is closed, substantially as described
and set forth.
Thirdly. In padlocks and like fastenings, the means herein described for throwing
back the shackle after being released by the act of unlocking the lock, substantially
as described and set forth.
Fourthly. In padlocks and like fastenings, the combination therewith of a
snap-closing and self-opening shackle, substantially as described and set forth.
Fifthly. In padlocks and like fastenings, the combination with a snap-closing

page_text: and self-opening shackle, of rocking or oscillating and sliding bolts, substantially as
described and set forth.
Sixthly. In padlocks and like fastenings, the general construction, arrangement
and combination of the several parts, substantially as and for the purpose described
and set forth.
Dated this 9th day of March 1897.
CHARLES DEAN,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicant.