IMPROVEMENTS IN FASTENINGS FOR CARRIAGE DOORS AND HANDLES FOR OPERATING THE SAME
Year: 1883

page_text: LETTERS PATENT to John Edwards of N° 90 Greenwood Road Hackney, in
the County of Middlesex for an Invention of IMPROVEMENTS IN FASTENINGS
FOR CARRIAGE DOORS AND HANDLES FOR OPERATING THE SAME
2
PROVISIONAL SPECIFICATION left by the said John Edwards at the Office
of the Commissioners of Patents on the 30th April 1883.
JOHN EDWARDS of N° 90 Greenwood Road Hackney in the County of Middlesex
IMPROVEMENTS IN FASTENINGS FOR CARRIAGE DOORS AND HANDLES FOR OPERATING
THE SAME
My improvements relate to what are termed two bolt locks or fastenings. I form
groves in the tail part of the top bolt and into these groves I place spiral springs
to operate this bolt also in forming hollows in the case and top plate of such locks
making these hollows to come opposite each other in the case and top plate thus
forming guides for the spiral springs to work in and allowing larger spiral springs
to be used in operating the parts of such locks than could be otherwise also in
forming a lever with suitable projections to engage the tail part of the bottom bolt
to hold it in position when locked and unlocked also in what is termed bushing
the square hole of the follower of such locks with steel, also bushing the square
hole in the, handle for, operating such locks with steel to prevent undue wear in
such parts also in forming the shank part of such handles of iron or steel and then
fixing the handle part which is made of a superiour metal to such shank part by
rivets or screws also in fastening the door in any required position when partly
open for this purpose I form a suitably curved iron plate or rod to the end of this
plate or rod I fix india-rubber springs to give elasticity this plate or rod is fixed in
any required position, and is made to work through a slot formed in a bracket
fixed to the standing door pillar which bracket acting as a stop the door is thus
fastened in any required open position.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Edwards in the Great Seal Patent Office on the 27th October
1883.
JOHN EDWARDS of 90 Greenwood Road Hackney in the County of Middlesex
"IMPROVEMENTS IN FASTENINGS FOR CARRIAGE DOORS AND HANDLES FOR OPERATING
THE SAME."
My improvements relate to what are termed and known as two bolt locks or
fastenings, I form grooves in the tail part of the top bolt for the springs to work in,
and sometimes I form grooves for the springs to work in by forming walls or divisions
of metal on the lock case, each spring working between such walls or divisions to
force out the top latch or bolt after having been forced in by the action of the bottom
bolt, I form hollows or grooves in the lock case also in the top plate and by causing
these grooves to come opposite each other it forms a guide for tho spiral springs
to work in, and by this means, larger spiral springs can be used to operate the
lock bolts I sometimes taper the square hole in the tongue or follower of such
locks and taper the square part of the spindle of the handle to fit into the square
formed in the tongue, and in order to keep such spindle tight in the tongue I
place a tubular washer or distance piece on the spindle making it bear against the
follower of the tongue and by screwing the nut of the spindle against the end of
this tube, the spindle is thus drawn in and always kept tight in the tongue.
I form a lever with suitable projections to engage the tail part of the bottom bolt to
hold it in position when locked and unlocked, I bush the square hole in the follower
of such locks with steel or other hard metal and also bush the square hole in the
handles for operating such locks with steel to prevent undue wear in such parts-
also I form the shank or base part of these handles of iron in any known manner
and then fit the front or handle part which I make by preference of a superior
metal to such base part by rivets or screws or any other suitable mechanical
means also fastening the door in any required open position, for this purpose I
form a suitably curved iron plate or rod, to the end of this plate or rod I fix india
rubber spring cushions working between washers or other suitable springs, to give
elasticity when the door is pushed open, this curved plate or rod is fixed in any
required position and is made to work through a slot formed in a bracket fixed to
the standing door 'pillar, which bracket acting as a stop the door is thus fastened
in any required open position
In witness whereof I the said George [sic] Edwards have hereunto set my hand
and seal this 27th day of October in the year of our Lord one thousand eight
hundred and eighty three