Improvements in the Manufacture of Door Bolts and other Bolts.
Year: 1889

page_text: Date of Application, 16th Apr., 1889
Complete Specification Left, 24th Dec., 1889-Accepted, 25th Jan., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Door Bolts and other Bolts.
I RICHARD GEORGE EVERED of Dorridge Croft Knowle in the County of Warwick
Brassfounder do hereby declare the nature of this Invention to be as follows :—
My improvements have reference principally to bolts of the kind called door bolts
but are also applicable to bolts other than door bolts.
In manufacturing a door bolt according to my invention I make the base plate
which supports the barrel of the bolt of sheet metal the ends of the said plate are
turned at right angles and constitute the arins or brackets by which the barrel of the
bolt is carried. The said barrel is made of a piece of tubing and is fixed in position
in the following manner. The arms or brackets have holes of a size suitable for the
reception of the ends of the barrel and the barrel is of such a length that its ends
project slightly beyond the outer faces of the said brackets. The projecting ends of
the barrel are expanded or eyeletted whereby the said barrel is firmly secured in its
place. Or the barrel may not exceed in length the distance between the brackets and
the holes in the brackets may be of smaller diameter than the interior of the barrel.
The edges of the holes are in this case expanded or eyeletted into the ends of the
barrel and the barrel thereby fixed in its place.
The base plate is provided with screw holes for attaching the bolt to the door or
other article and the barrel has the usual longitudinal and cross slots in which the
neck of the handle of the bolt slides and engages.
The manufacture according to my invention of bolts other than door bolts differs in
no essential respect from the manufacture of door bolts as hereinbefore described.
Dated this 16th day of Anril 1889
W. T. WHITEMAN,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Door Bolts and other Bolts.
I RICHARD GEORGE EVERED of Dorridge Croft, Knowle in the County of Warwick,
Brass Founder do hereby declare the nature of my invention and the manner in which
the same is to be performed to be particularly described and ascertained in and by
the following statement :-
My improvements have reference principally to bolts of the kind called door bolts
but are also applicable to bolts other than door bolts.
In manufacturing a door bolt according to my invention I make the base plate
which supports the barrel of the bolt of sheet metal; the ends of the said plate are
turned at right angles and constitute the arms or brackets by which the barrel of the
bolt is carried.
The said barrel is made of a piece of tubing and is fixed in position in the following
manner. The arms or brackets have holes of a size suitable for the reception of the
ends of the barrel and the barrel is of such a length that its ends project slightly
beyond the outer faces of the said brackets. The projecting ends of the barrel are
expanded or eyeletted whereby the said barrel is firmly secured in its place. Or the
barrel may not exceed in length the distance between the brackets and the holes in
the brackets may be of smaller diameter than the interior of the barrel. The edge of
the holes are in this caso expanded or eyeletted into the ends of the barrel and the
barrel fixed in its place. Or the expanding of the brackets or barrel may be dispensed
with and the barrel be fixed in the brackets by soldering.
The base plate is provided with screw holes for attaching the bolt to the door or

page_text: other article and the barrel has the usual longitudinal and cross slots in which the
neck of the handle of the bolt slides and engages.
Figure 1 represents in plan the cut out and pierced blank or plate of brass or other
hard and ductile sheet metal from which the base plate of the door bolt and the arms
or brackets for supporting the tubular barrel are made, the base plate being marked a
and the perforated end pieces from which the arms or brackets are made are
marked a, a and the holes therein are marked a³, a³.
Figure 2 represents the barrel marked e cut from a piece of tubing the said barrel
having in it the usual longitudinal slot d and cross slots e, e for the neck of the bolt
handle to work in and engage with.
Figure 3 represents in plan the base plate a after the arms or brackets a³, a have
been turned or bent at right angles to the said base plate and the ends of the barrel c
inserted in the holes a³, as in the arms or brackets ready for the eyeletting process. It
will be seen that the barrel c is of such a length that its ends project slightly beyond
the outer faces of the said brackets.
Figure 4 represents the barrel c after it has been fixed to the brackets a², a² by
expanding or eyeletting its ends upon the said brackets, the expanded or eyeletted
parts of the barrel being marked f, f.
Figure 5 represents in side elevation, Figure 6 in longitudinal section and Figure 7
in end elevation a finished door bolt made according to my invention; that is, a bolt
barrel c fixed in the brackets a³, a² of the base plate a furnished with the sliding rod
or bolt proper g, and handle h.
Instead of fixing the barrel c to the brackets a², a² of the base plate a, by eyeletting
the ends of the former upon the latter as described and represented, the edges of the
holes as, as in the brackets may be expanded or eyeletted into the ends of the barrel.
In this case the holes in the brackets are of smaller diameter than the barrel and the
barrel is slightly shorter than that represented.
Or the barrel may be fixed to the brackets by soldering. In this case the brackets
and barrel are modified in the manner represented in Figures 8, 9, 10 and 11;
Figure 8 representing a side elevation of the base plate a, and its end brackets
Figures 9 and 10 end elevations of the same, and Figure 11 the barrel.
;
In this modification one of the brackets a is made in the manner herein before
described for receiving one end of the barrel c, but the other bracket at consists of a
circular disc of a size proper for fitting closely in the end of the barrel and having at
bottom a neck or contraction a" upon which a slot or notch c in the other end of the
barrel engages to prevent the rotation of the said barrel in the brackets. The barrel.c
having been passed through the perforated bracket as its notched end c³ is made to
take upon the disc-shaped bracket a*, a and the said bracket is soldered in the end of
the barrel. Or both ends of the barrel c may be soldered in the brackets a² and a*.
The manufacture according to my invention of bolts other than door bolts differs in
no essential respect from the manufacture of door bolts as herein before described and
illustrated in the accompanying drawing.
Having now particularly described and ascertained the nature of my inven-
tion and the manner in which the same is to be performed I declare that I claim
as my invention of "Improvements in the manufacture of door bolts and other
bolts
"
Making the base plate of the bolt and the arms or brackets by which the barrel is
supported from a blank of sheet metal in the manner herein before described and
illustrated and making the barrel of a piece of tubing perforated with longitudinal
and cross slots for the neck of the bolt handle to work in and engage with and fixing
the barrel to the supporting brackets of the base plate substantially in the several
ways hereinbefore described and illustrated in the accompanying drawing.
Dated this Nineteenth day of December 1889.
RICHARD GEORGE EVERED.