Improvements in the Manufacture of Door Bolts.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Door Bolts.
I, SAMUEL WAKELAM, of the Firm of Wakelam and Company, of Stringes Lane,
Willenhall, in the County of Stafford, Lock Manufacturer, do hereby declare the
nature of this invention to be as follows:-
This invention relates to the manufacture of the barrels or casings of door bolts,
and has for its object, the making of the barrels in a simpler and more efficient way
than has heretofore been done.
The said invention consists in making the barrel and attachment plates in one
piece or from a single blank of metal.
In carrying out my invention, I take a blank of sheet metal and pierce or fashion
the two opposite edges of the same into a number (say five) of divisions, with the
dividing slits or piercings extending inwards to an extent about equal to one half
the diameter of the barrel to be formed. The middle part of the blank is then
shaped longitudinally into a troughed figure the end and middle ears formed by
the aforesaid slit being left standing at an angle to the plane of the barrel and form
attachment plates by means of which the said bolt casing is attached to a door
or other article.
The intermediate ears are bent inwards or undermost until the edges of the
opposite pairs meet or nearly so and thus form the continuation or underside of
the barrel. There is thus produced a barrel with the flanges or attachment plates
made integral and having openings in the bottom at parts where the said attach-
ment plates or flanges come, whilst the casing is completely enclosed at the
intermediate points between the ears.
The front or top of one end of the barrel or casing is pierced with a double
T-shaped slot as usual for the reception of the stem of the handle of the shoot or
bolt which slides within the barrel, whose back end may be closed by a turned-
down lip made as a continuation of the middle part of the blank.
The staple is made from a single blank comprising two plates connected together
by a web; one of them is longer than the other and is troughed or channelled
cross wise to form the staple, and the other part constitutes the bottom to the same.
Dated this 11th day of August 1897.
SAMUEL WAKELAM
By Henry Skerrett,
Agent for Applicant.

page_text: Improvements in the Manufacture of Door Bolts.
I, SAMUEL WAKELAM, of the Firm of Wakelam and Company, of Stringes Lane,
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 the manufacture of the barrels or casings of door bolts,
and has for its object, the making of the barrels in a simpler and more efficient way
than has heretofore been done.
The said invention consists in making the barrel and attachment plate in one
piece or from a single blank of metal.
Figure 1 of the accompanying drawing represents a topside plan of a door bolt
with the casing and attachment plates made from a single blank of sheet metal in
accordance with my invention.
Figure 2 is a side elevation thereof and Figure 3 an underside plan.
Figure 4 is a cross section of the bolt upon the dotted line x, Figure 1 and
Figure 5 a cross section upon the dotted line c¹.
Figure 6 is a view of the closed end of the casing.
The same letters of reference indicate corresponding parts in the said
Figures 1 to 6.
"
In carrying out my invention, I take a blank of sheet metal and fashion the same
into the shape represented in Figure 7, in which the two opposite edges a¹, have a
number (say five) of divisions a², a³, with the divisional edge gappings a³, ex-
tending inwards to an extent about equal to one half the diameter of the barrel to
be formed. The middle part a, of the blank is then shaped longitudinally
into a troughed figure, the end and middle cars a³, formed by the aforesaid edge
gappings being left standing (as represented in Figures 8 and 9) at an angle to
the plane of the barrel b, formed by the troughing, and constitute the attachment
plates c, by means of which the said bolt casing a, is attached to a door or other
article.
The bolt is then placed in position within the trough from the open underside
and the intermediate ears a², which have been set at a right angle relative to the
attachment plates (see Figures 8 and 9) are bent inwards or undermost until the
edges a, of the opposite pairs meet or nearly so and thus form the part bottoms
or undersides 6', of the barrel or closure clips for retaining the bolt in the barrel.
There is thus produced a barrel with the flanges or attachment plates made integral
and having openings in the bottom at parts where the said attachment plates or
flanges come, whilst the casing is enclosed at the intermediate points between the
ears by the closure clips.
The front or top of one end of the barrel or casing is pierced with a double
T-shaped slot e, as usual for the reception of the stem of the handle d, of the shoot
or bolt which slides within the barrel, whose back end may be closed by a turned-
down lip a made as a continuation of the middle part of the blank.
The staple may be made from a single blank comprising two plates connected
together by a web, one of them is longer than the other and is troughed or
channelled crosswise to form the staple, and the other part constitutes the bottom
to the same.
Figure 10 represents the blank from which the staple is made, and Figure 11
an elevation of the finished staple.
are
4
a is the blank, a¹ the longer plate, from which the staple b, and its ears b¹,
formed, the short plate which constitutes the attachment foot c, and a³ is the
connecting web between them which forms the closed end d, to the said staple. 5

page_text: The overlapping ears 6', and ends of the foot c, are coincidently pierced to take
the attachment screws.
my said inven-
Having now particularly described and ascertained the nature of
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
First In door and like bolts, making the attachment feet, barrel and closure
clips for guiding and retaining the bolt in the barrel, integral or from a single
blank of metal, substantially as described and set forth.
Secondly:The improvements in carriers or casings for the shoots of door and
like bolts, substantially as described and set forth.
Thirdly-In door and like bolts, the improvements in the manufacture of staples
from sheet metal, substantially as described and set forth.
Dated this 24th day of December 1897
SAMUEL WAKELAM
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicant.