Improvements in the Manufacture of Barrel or Socket Bolts.
Year: 1889

page_text: Date of Application, 23rd Jan., 1000
Complete Specification Left, 22nd Oct., 1889-Accepted, 30th Nov., 1889
Complete Specification Left, 22nd Oct., 1889-Accepted, 30th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Barrel or Socket Bolts.
I FRANCIS ROBERT BAKER, of Snow Hill, Birmingham, in the county of
Warwick Engineer do hereby doclare the nature of this invention to be as
follows: -
This invention relates to improvements in the manufacture of door and other
bolts, generally known as barrel or socket bolts, and its object is primarily, to
construct the barrel and screw down plates of one piece of stamped metal; and in the
method or processes of such manufacture.
I cut or stamp out a piece or strip of metal, about double the length of the required
barrel.
The purpose of this double length strip is, that the one half shall, as already
intimated, form the plate, while the other part shall be stamped into the barrel forni,
and bent over on to the plate part, and there secured, thus forming the entire barrel
and plate in one piece.
At a short distance from the one end, I pierce slots or holes therethrough, which
coincide with projections formed upon the sides of the strip at a similar distance
from the other end. This part or end in which the slots are formed, constitutes the
base or plate of the bolt, in which I further grovide the necessary screw down holes,
within about half the length of the entire piece.
Near the inner end of the other half, I cut or pierce the slot, wherein the shank of
the bolt handle is to work. This part of the strip is then submitted to press tools,
which channel it or form it into a semi-tubular shape. The piece is then bent over
or doubled crosswise midway in its length, when the aforesaid projections upon the
sides of the now semi-tubular part, pass into the slots or holes of the plate part, and
are there rivetted or turned over, thus firmly securing the two parts together, forming
a complete bolt barrel and plate.
At that part of the strip where the bending or doubling takes place, the said strip
may be cut or shaped or pressed to facilitate such bending, and its required form
when so bent and doubled.
The bolt may be made in the ordinary manner, and either inserted into its place at
the bending or doubling operation or subsequently to suit convenience.
The whole may be dressed and finished in the usual manner according to
requirement.
Dated this 21st day of January 1889.
CHARLES T. POWELL,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Barrel or Socket Bolts.
1 FRANCIS ROBERT BAKER of Snow Hill, Birmingham in the county of Warwick
Engineer 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 improvements in the manufacture of door and other
bolts, generally known as barrel or socket bolts, and its object is primarily, to
construct the barrel and screw down plates of one piece of stamped metal; and in
the method or processes of such manufacture.
I cut or stamp out a piece or strip of metal, about double the length of the required
barrel.
"
.
L-11
2
alrondy

page_text: intimated, form the plate, while the other part shall be stamped into the barrel form,
and bent over on to the plate part, and there secured, thus forming the entire barrel
and plate in one piece.
At a short distance from the one end, I pierce slots or holes therethrough, which
coincide with projections formed upon the sides of the strip at a similar distance from
the other end. This part or end in which the slots are formed, constitutes the base
or plate of the bolt, in which I further provide the necessary screw down holes,
within about half the length of the entire piece.
Near the inner end of the other half, I cut or pierce the slot, wherein the shank of
the bolt handle is to work. This part of the strip is then submitted to press tools,
which channel it or form it into a semi-tubular shape. The piece is then bent over or
doubled crosswise, midway in its length, when the aforesaid projections upon the
sides of the now semi-tubular part, pass into the slots or holes of the plate part, and
are there rivetted or turned over, thus firmly securing the two parts together, forming
a complete bolt barrel and plate.
At that part of the strip where the bending or doubling takes place, the said strip
may be cut or shaped or pressed to facilitate such bending, and its required form,
when so bent and doubled.
The bolt may be made in the ordinary manner, and either inserted into its place at
the hending or doubling operation or subsequently to suit convenience.
The whole may be dressed and finished in the usual manner according to requirement.
I will now proceed to more particularly explain bow this my invention is to be
carried out or performed, having reference to the accompanying illustrative sheet of
drawings upon which are figures and letters of reference, similar letters referring
throughout the several views to the same thing or part, and upon which :-
Fig. 1, is a plan view of the blank from which the barrel and plate is made.
Fig. 2, shows the barrel part formed and ready to be rivetted up.
Fig. 3, is a sectional view of Fig. 2, upon line A-B.
Fig. 4, is a detached view of the bolt.
Fig. 5, is a view in elevation of the bolt completed.
Fig. 6, is a view in plan of the bolt completed.
-
I cut or stamp out the piece a, about double the longth of the required barrel; the
part from b, to c, forms the screw-down plate d, while the part from e to b, is formed
into the barrel or socket. In the plate d, at f, f, I pierce slot holes, which coincido
with projections g. 9, upon the barrel. Also in the plate the necessary screw down
holes h, h, h, h, are made.
Near the inner end of the barrel part, I cut or pierce the slot i, wherein the shank j,
of the bolt is to work.
This barrel part, that is, from e to b, is now submitted to press tools, which channel
it, into a somewhat semi-circular sectional form as seen in Fig. 3. It is then bent
over or doubled crosswise midway in its length, as seen in Fig. 2, when the aforesaid
projections g, pass into the slots f, and aro there rivetted or turned over,
thus firmly
securing the two parts together; forming a complete bolt barrel and plate.
The bolt, may be made in the ordinary manner, and inserted subsequently to the
forming of the barrel.
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
The improvements in the manufacture of door or other barrel or socket bolts as
hereindescribed, that is to say, making the barrel and the base plate, of one piece of
metal, bent, folded, and secured, after the manner substantially as heroin set forth and
illustrated upon the drawings.
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicant's Agent.