Improvements in or relating to Sliding Bolts or Bars for Fastening Doors and the like and in Apparatus connected therewith.
Year: 1898

page_text: Improvements in or relating to Sliding Bolts or Bars for Fastening
Doors and the like and in Apparatus connected therewith.
I, JOHN MAY, of 32, John Street, Derby Street, Bolton, in the County of
Lancaster, Smith, do hereby declare the nature of my said invention to be as
follows:-
This invention refers to improvements in or relating to sliding bolts or bars
for fastening doors and the like and in apparatus connected therewith and con-
sists in ready and efficient means whereby a sliding bolt or bar secured on the
inside of a door or its equivalent may be operated to fasten the same from the
outside after being closed. This I carry into effect by providing a metallic
cylinder in which is disposed a sliding bolt or bar to which is attached an
operating arm or lever. The metallic cylinder is also provided with a slot to allow
of the sliding action of the aforesaid arm or lever as desired or necessary to
fasten or unfasten a door when required. The metallic cylinder is also provided
with a slot for receiving the operating arm or lever to keep the sliding bolt or bar
out of action, and when in this position is opposite a sliding bolt mounted in a
suitable bearing in the door; the sliding bolt extending through to the outside
of the door. After the door has been closed it may be fastened by pushing the
sliding bolt-extending to the outside of the door in an inwardly direction, the
end of which operates on and swivels the sliding bolt until the operating arm or
lever is moved sufficiently in the slot, when by the action of a spiral spring or
its equivalent in the metallic cylinder the bar or bolt slides and places the outer
end into a metallic or other fixing or recess mounted on the door casing, thus
securing the door. The metallic cylinder is also provided with a slot for receiving
the arm or lever when requisite for keeping the sliding bar or bolt out of action.
This apparatus is equally applicable for railway carriage doors, and may be
enclosed or covered by any suitable means to prevent the same being detrimentally
interfered with by anyone only those entitled to do so.
Improvements in or relating to Sliding Bolts or Bars for Fastening
Doors and the like and in Apparatus connected therewith.
I, JOHN MAY, of 32, John Street, Derby Street, Bolton, in the County of
Lancaster, Smith, do hereby declare the nature of my said invention and in what
Die Q17

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention refers to improvements in or relating to sliding bolts or bars
for fastening doors and the like and in apparatus connected therewith and con-
sists in ready and efficient means whereby a sliding bolt or bar secured on the
inside of a door or its equivalent may be operated to fasten the same from the
outside after being closed. This I carry into effect by providing a metallic
cylinder in which is disposed a sliding bolt or bar to which is attached an
operating arm or lever. The metallic cylinder is provided with a slot to allow
of the sliding action of the aforesaid arm or lever as desired or necessary to
fasten or unfasten a door when required. The metallic cylinder is also provided
with a slot for receiving the operating arm or lever to keep the sliding bolt or bar
out of action, and when in this position is opposite a sliding bolt mounted in a
suitable bearing in the door; the sliding bolt extending through to the outside
of the door. After the door has been closed it may be fastened by pushing the
sliding bolt extending to the outside of the door-in an inwardly direction, the
end of which operates on and swivels the sliding bolt until the operating arm or
lever is moved sufficiently in the slot, when by the action of a spiral spring or
its equivalent in the metallic cylinder the bar or bolt slides and places the outer
end into a metallic or other fixing or recess mounted on the door casing, thus
securing the door. The metallic cylinder is also provided with a slot for receiving
the arm or lever when requisite for keeping the sliding bar or bolt out of action.
This apparatus is equally applicable for railway carriage doors, and may be
enclosed or covered by any suitable means to prevent the same being detrimentally
interfered with by anyone only those entitled to do so.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a longitudinal elevation showing my improvements in or relating
to sliding bolts or bars for fastening doors and the like and apparatus connected
therewith when the same has been operated from the outside after being closed.
Fig. 2 a plan of Fig. 1. Fig. 3 a longitudinal elevation of my invention when
in position for being operated before closing the door and the like, and Fig. 4 a
plan of Fig. 3.
In all the figures the same letters are employed to indicate corresponding
parts.
A is a metallic cylinder; B sliding bar or bolt, and C the operating arm or
lever. The metallic cylinder A is provided with the upper and lower flanges D by
which the same is secured to the inside of the door T and the like by the
screws E or their equivalents. The metallic cylinder A is provided with the
slot G to allow of the sliding action of the aforesaid operating arm or lever C
as desired or necessary to fasten and unfasten the door T when required. The
metallic cylinder A is provided with the slot H for receiving the operating arm
or lever to keep the sliding bolt or bar B out of action, and when in this
position is opposite the sliding bolt or bar S mounted in the plate or bearing I
secured to the door T and the like by the screws X; the sliding bolt or bar S
extending through the door T and the like to the outside of the latter, being
provided at its outer end with the knob or handle J secured by the pin K or
otherwise. After the door T has been closed it may be fastened by pushing the
sliding bar or bolt S extending to the outside of the door T in an inwardly
direction, the end of the sliding bolt or bar S operating on the arm or lever C,
and swivelling the latter along with the sliding bolt or bar B until the operating
arm or lever C is moved sufficiently in the slot H so as to place it in line with
the slot G, when by the action of the spiral spring in the metallic cylinder A
the bar or bolt B slides and places the outer end into the metallic fixing P secured
and mounted on the door casing W by the screws V, thus securing the door.
The metallic cylinder A is also provided with the slot Z for receiving the arm or
lever C when requisite for keeping the sliding bar or bolt B out of action

page_text: as shown in dotted lines in Fig. 3. In adapting my invention for fastening
windows the sliding bar or bolt S is dispensed with in which case the sliding.
bar or bolt B in the metallic cylinder A is operated by hand from the inside; the
sliding bar or bolt B being locked in the lower slot Z by the action of the spiral
spring O. This arrangement of my invention is also applicable for railway
carriage doors and may be enclosed or covered by any suitable means to prevent
the same being detrimentally interfered with by anyone only those entitled to
do so.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
The general arrangement construction and combination of parts composing my
improvements in or relating to sliding bolts or bars for fastening doors and the
like consisting of the cylinder A in which is mounted the sliding bolt or bar B
and spiral spring O, the sliding bolt or bar B being provided with the arm
or lever C which operates in the slots G. H and Z; the said arm or lever C being
actuated by the sliding bolt or bar S mounted in the plate or hearing I to
swivel the said bolt or bar B and the arm or lever C together with the
means for locking or arresting the same; the whole being connected, applied, and
operating substantially as described and as illustrated in the annexed drawings
in Figs. 1 to 4 inclusive.
Dated the 23rd day of August 1899.
EDMUND CHADWICK,
Agent