A. NEW OR IMPROVED DOOR-SPRING BOX TO CLOSE DOORS SEPARATE FROM HINGES THAT OPEN HORIZONTALLY AND FOR GIVING AN ALARM WHEN THE DOOR IS OPENED OR CLOSED
Year: 1877

page_text: LETTERS PATENT to Joseph Barton, of Baxter Road, Islington, in the County
of Middlesex, Engineer, and Joseph Rogers, of Owen's Row, Goswell Road, also
in the County of Middlesex, Civil Engineer, for the Invention of "A. NEW
OR IMPROVED DOOR-SPRING BOX TO CLOSE DOORS SEPARATE FROM HINGES
THAT OPEN HORIZONTALLY AND FOR GIVING AN ALARM WHEN THE DOOR IS
OPENED OR CLOSED."
Sealed the 18th December 1877, and dated the 22nd June 1877.
PROVISIONAL SPECIFICATION left by the said Joseph Barton and Joseph
Rogers at the Office of the Commissioners of Patents on the 22nd June 1877..
JOSEPH BÁRTON, of Baxter Road, Islington, in the County of Middlesex,
Engineer, and JOSEPH ROGERS, of Owen's Row, Goswell Road, also in the County
of Middlesex, Civil Engineer. "A NEW OR IMPROVED DOOR-SPRING BOX TO
CLOSE DOORS SEPARATE FROM HINGES THAT OPEN HORIZONTALLY AND FOR GIVING
AN ALARM WHEN THE DOOR IS OPENED OR CLOSED."
"K
The improvements consist in a peculiar form and novel adaptation of a spring or
springs and levers, which when attached to a door will cause that door to close and
remain closed. A box or case containing the said spring or springs and levers sunk.
into floor, has an axis which projects through the upper cap, and has a square neck
above the said cup, but it (the axis) is simply stepped on the under cap. On the
axis is fixed a lever; on the said lever we employ one or more helical spring or
springs, which springs are brought to a tension by screws and bolts with nuts
through the end of the box or case when more tension is required to close heavy
doors than can be obtained from helical springs; we employ a flat spring across the
end or foot of the box or case. The bolt as above described is passed through the
flat spring and the end or foot of the box or case, the tension nut being applied as
above described.
The second part of our Invention relates to a tongue stop projecting through the
upper cap of the spring box, which keys itself into a slot at the heel of door,
thereby retaining the door at right angles with the jamb.

page_text: The third part of our Invention relates to applying within the spring box or case
an alarm, which is acted upon as the door opens or shuts by percussion from the
lever within the box or case.
The fourth part of our Invention relates to applying electricity, whereby a bell
or wire cord can be made to sound in any part or parts of a house or building. A
galvanic battery placed in any part of the house or building with insulated wires
attached are brought in contact, one fastened to the spring box or case; the other
wire is attached to the tongue stop (which is insulated) which, when pressed down
by the opening or shutting the door, will convey a current of electricity to a bell
box or bell boxes placed in any part or parts of the house or building.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by.
the said Joseph Barton and Joseph Rogers in the Great Seal Patent Office on
the 19th December 1877.
JOSEPH BARTON, of Baxter Road, Islington, in the County of Middlesex,
Engineer, and JOSEPH ROGERS, of Owen's Row, Goswell Road, also in the County
of Middlesex, Civil Engineer. "A NEW OR IMPROVED DOOR-SPRING Box To
CLOSE DOORS SEPARATE FROM HINGES THAT OPEN HORIZONTALLY AND FOR GIVING
AN ALARM WHEN THE DOOR IS OPENED OR CLOSED."
On
Our improvements consist in a peculiar form and novel adaptation of a spring or
springs and levers, which, when attached to a door, will cause that door to close
and remain closed. A box or case containing the said spring or springs and levers
sunk into floor, has an axis which projects through the upper cap, and has a square
neck above the said cap, but it (the axis) is simply stopped on the under cap.
the axis is fixed a lever; on the said lever we employ one or more helical spring or
springs, which springs are brought to a tension by screws and bolts with nuts
through the end of the box or case when more tension is required to close heavy
doors than can be obtained from helical springs; we employ a flat spring across the
end or foot of the box or case. The bolt as above described is passed through the
flat spring and the end or foot of the box or case, the tension nut being applied as
above described.
The second part of our Invention relates to a tongue stop projecting through the
upper cap of the spring box, which keys itself into a slot at the heel of door,
thereby retaining the door at right angles with the jamb.
The third part of our Invention relates to applying within the spring box or
case an alarm, which is acted upon as the door opens or shuts by percussion from
the lever within the box or case.
The fourth part of our Invention relates to applying electricity, whereby a bell
or wire cord can be made to sound in any part or parts of a house or building. A
galvanic battery placed in any part of the house or building with insulated wires
attached are brought in contact, one fastened to the spring box or case; the other
wire is attached to the tongue stop (which is insulated) which, when pressed down
by the opening or shutting the door, will convey a current of electricity to a bell
box or bell boxes placed in any part or parts of the house or building.
In order that our Invention may be fully understood we proceed to describe the
Drawings annexed.

page_text: Figure 1 represents a plan view of a metal box or case with the upper plate
removed.
a, a, a, is the metallic box or case which encloses the spring or springs.
b is the axle upon which the lever C is fixed or east, with a tongue which falls
between two lips rivetted or cast on the base of the box or case shewn in Figure 2, h, h.
d is a swivel hinge pinned into the end of the lever c with hooks or other suitable
fastenings to secure the helical spring or springs e, e, which are brought to a tension
on the flat springs f, f, across the end of the box or case a, a, a, by screws and
bolts m, n, attached thereto.
i is the bell sunk into a well at the base of the box or case a, a, a, under the
helical springs e, e.
A lever with two forks l, l, l, meets the end of the tongue
stop g, which forces the lever of the bell from the rest to either angle, thereby
giving a percussion and an alarm as the door opens to either angle.
j, j, are screw nipples with electric wires. The positive current is fastened or
screwed to the metal box or case a, a, a. The negative is insulated and brought in
contact by action of the heel of the lever c; as the door opens, it presses on the
spring k, which forms contact.
Figure 3 is a longitudinal section showing the tongue stop o, which projects through
the upper cap by means of the flat spring p.
And having now described the nature of our said Invention, and in what manner
the same is to be performed, we declare that we claim,-
Firstly. The construction of a door-spring box, substantially as herein set forth,
and shewn by the Drawings.
Secondly. The application of an alarm within a door-spring box or case.
Thirdly. The application of electricity to give an alarm to any part of house
or building.
In witness whereof, we, the said Joseph Barton and Joseph Rogers, have here-
unto set our hands and seals, this First day of September, in the year of
our Lord One thousand eight hundred and seventy-seven.
Witness,
ALFRED BODMAN,
122, Saint John St. Road.
JOSEPH BARTON. (L.S.)
JOSEPH ROGERS. (L.S.)