Improved Means of Pivoted Attachment between Padlock Shackles and Cases.
Year: 1892

page_text: Date of Application, 7th May, 1892
Complete Specification Left, 7th Feb., 1893-Accepted, 18th Mar., 1893
PROVISIONAL SPECIFICATION.
Improved Means of Pivoted Attachment between Padlock Shackles
and Cases.
I, FREDERICK WILLIAM PINSON, of Dale Works, Willenhall in the County of
Stafford, Lock Manufacturer, do hereby declare the nature of this invention to be
as follows:-
This invention has for its object an improved means of pivoted attachment
between the shackle and case of a padlock, according to which no pin, stud, or rivet
for the purpose of such attachment requires to be fixed in or passed through either
the front or back plate of the case. The invention is applicable more especially to
a padlock having the case formed in two parts of which one of such parts has a rim
which, when the parts are put together, is passed inside a corresponding rim of the
other part, such as described in the Specification accompanying my application
No. 14,088 of 1891 for a Patent; but other forms of case, specially modified for
the purpose, may be adopted, as hereinafter described, for the improved attachment
of the shackle therewith.
According to this invention, the end of the shackle for pivoting to the case is
formed with a pivot pin which projects, preferably, on each side; and, when the
shackle is to be pivoted to a case formed in two parts in the manner above
described, a recess is formed in the outer face of the inner rim or in the inner face
of the outer rim, or in both of such faces, to receive the pin which when in place
is securely retained between the two rims. The inner end of the shackle is first
inserted through a hole formed therefor in the outer rim. This hole is oblong in
the direction of the plane in which the shackle moves when being opened or closed,
and is narrower than the rim and is in position therethrough to leave a width of
the rim on each side of it. To enable the end of the shackle, with the pin formed
thereon, to be inserted through the hole it is held in position to bring the pin
lengthways of the hole. After the end of the shackle has been passed through the
hole, it is turned to bring the pin into position transverse to the hole with its ends
or projections under or inside the portion of the rim on each side thereof. The
inner rim is then pushed inside the outer rim, being according to one modification
provided with a recess which fits round under the pin and which slides therealong
as the rim is pushed in place; and thus the pin, while free to turn in the recess, is
securely retained between the inner and outer rims. If desired, the recess within
which the pin works may be formed in the inner faces of the portions of the outer
rim which are on either side of the hole through which the inner end of the shackle
passes; or recesses of half the depth may be formed in both the inner and outer
rims to form a bearing for the pin to work in. The pin is formed on the extreme
end of the shackle, from which the shackle starts as from a base, and thus the lower
side of the pin is straight from end to end.
It will be obvious that a shackle may be pivoted in the manner above described
to other constructions of padlock case, by providing one plate of the case with a
part which passes immediately inside the rim or roundabout, so that the pin can be
retained, in a recess or recesses, between the rim or roundabout and the part which
passes immediately inside it.
Dated this Sixth day of May 1892

page_text: COMPLETE SPECIFICATION.
Improved Means of Pivoted Attachment between Padlock Shackles
and Cases.
I, FREDERICK WILLIAM PINSON, of Dale Works, 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 has for its object an improved means of pivoted attachment
between the shackle and case of a padlock, according to which no pin, stud, or rivet
for the purpose of such.attachment requires to be fixed in or passed through either
the front or back plate of the case. The invention is applicable, more especially,
to a padlock having the case formed in two parts of which one of such parts has a
rim which, when the parts are put together, is passed inside a corresponding rim of
the other part, such as described in the Specification accompanying my application
No. 14,088 of 1891 for a Patent; but other constructions of case, may be adapted,
as hereinafter described, for the improved attachment of the shackle therewith.
According to this invention the end of the shackle for pivoting to the case is
formed with a pivot pin which projects, preferably, on each side; and when the
shackle is to be pivoted to a case formed in two parts in the manner above
described, a recess is formed in the outer face of the inner rim or in the inner face
of the outer rim, or in both such faces, and the pin which is formed on the end of
the shackle is fitted into such recess or recesses and is thus securely retained in
position by the two rims. When a recess to receive the pin is formed in the outer
face of the inner rim a portion of such rim is also recessed or sunk for a short
distance back from the recess which is to receive the pin and to about the width of
the shackle, to receive the back of the inner end of the shackle when the shackle
is turned back to open it wide.
I will now proceed to describe a practical application of the invention as applied
to a padlock case formed in two parts in the manner above described, and in doing
so will refer to the accompanying drawings and the letters of reference marked
thereon.
Figure 1 is a front view of the part of the case lettered A. on the drawings
accompanying my said former Specification, and Figure 2 is a plan looking down on
the top thereof.
Figure 3 is an elevation of the part A taken as a section on line ax of Figure 2.
Figure 4 is a side elevation of the shackle detached, and Figure 5 is a view
looking towards the back end thereof.
Figure 6 is a front elevation of the part of the case lettered A' on the drawings
accompanying my said former Specification, and shews the hinder end of the shackle
to be inserted therein preparatory to being turned into position to allow the part A
of the case to be pushed inside the part A' thereof, and the recess c herein after
described to be engaged with the pivot-pin of the shackle.
Figure 7 is a plan looking down on the top of Figure 6, but in this view the
shackle is omitted.
Figure 8 is a section through the middle of both the parts A A' of the case
when such parts have been put together the one within the other, and shews the
shackle as pivoted within a recess of the part A, and the pivoted end to be thus
retained in position between the rims of the two parts of the case.
Figure 9 is a view corresponding to Figure 8, but shews the pivot-pin of the
shackle to be within a recess formed in the inner face of the outer rim of the
case; and
Figure 10 is also a corresponding view to Figure 8, but shews the pivot pin of
the shackle to be within a bearing formed partly in the outer face of the inner rim
of the case and partly in the inner face of the outer rim.
i

page_text: A pivot pin d is formed on the extreme hinder or inner end of the shackle B, and
projects on each side of such end as shewn. The rim 6 of the part A of the case is
formed with a trausverse recess c impressed therein to receive the pin d; and a
recess e is sunk in such rim, as shewn, to allow the back of the inner end of the
shackle being turned back therein when the shackle is opened wide, as shewn by
broken lines Figure 8. The recess e runs from the bottom of the recess c out to
the surface of the rim 6 and is of course only of sufficient width for the purpose
required. The hole in the rim b' of the part A¹ of the case through which the
hinder or inner end of the shackle passes, is made of course of sufficient width only
to allow of the shackle passing therethrough, but is made of sufficient length as
shewn to allow of the shackle being turned back into the position indicated by
broken lines Figure 8.
The shackle is pivoted within the case by first passing the inner end through the
opening in the rim b', and this is accomplished while the shackle is held with its
pin d in a direction lengthways of the opening f, as indicated by Figure 6. When
the pin d has been inserted through the opening fit is turned into a position
transverse to such opening with its projecting ends, respectively, under the portions
of the rim on opposite sides of the opening. The part A of the case is then
inserted within the part A', and thus when the two cases have been fixed together
the pin is securely retained within the recess c by means of the outer rim b, but
the pin fits sufficiently easily within such recess to admit of its turning readily
therein so that the shackle may be easily opened and closed. The recess c is, of
course, open to the front edge of the rim b so that it may be slid along the pin d as
the part A of the case is pushed into the part A¹ thereof.
If desired, the recess within which the pin d turns may be formed in the portions
of the inner face of the outer rim ¹ which are on either side of the opening f, in
which case no recess e is required, as shewn by Figure 9; or recesses of half the
depth of the recess c may be formed in both the inner and outer rims to form a
bearing for the pin d to work in, as shewn by Figure 10.
The parts A A' being preferably of thin sheet metal, the improved means of
pivoted attachment of the shackle are peculiarly advantageous.
It will be obvious that a shackle may be pivoted in the manner above described
to other constructions of padlock cases, by providing one plate of the case with a
part (which may be merely of sufficient length for the purpose, in a direction
circumferentially of the case) which passes immediately inside the rim or
roundabout, in position so that the pin can be retained, in a recess or recesses,
between the rim or roundabout and the part which passes immediately inside it.
While it is much preferred to avoid any riveting through either the front or back
plate of the case for the purpose of the pivoted shackle attachment, a part
projecting from a plate for the purpose of such attachment in the manner described
may, of course, be fixed thereto by riveting.
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 pivoted attachment between a padlock shackle and case in which the pivot
pin is retained in place between a rim or part projecting from one plate of the case
and a rim or part projecting from the other plate of the case and within a recess or
bearing formed in the outer face of the inner rim or part or in the inner face of the
outer rim or part or partly in each face, substantially in the manner described.
2. A pivoted attachment between a padlock shackle and case in which the pivot
pin is solid with the shackle and is retained in place between a rim or part
projecting from one plate of the case and a rim or part projecting from the other
plate of the case and within a recess or bearing formed in the outer face of the
inner rim or part or in the inner face of the outer rim or part or partly in each face,
substantially as described.

page_text: 3. Pivoted attachments between padlock shackles and cases, substantially as
described and shewn by the drawings herewith.
Dated this 6th day of February 1893.
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicant..