Improvements in or Additions to Springs for Doors.
Year: 1892

page_text: Date of Application, 24th Oct., 1892
Complete Specification Left, 24th July, 1893-Accepted, 19th Aug., 1893¯
PROVISIONAL SPECIFICATION.
Improvements in or Additions to Springs for Doors.
I, ALFRED BEESLEY, of Aston Villas, Wellhead Lane, Perry Barr, in the
County of Stafford, Cycle Machinist, do hereby declare the nature of this invention
to be as follows :—
My invention relates as hereinafter described to spring hinges for doors and.
relates principally to that class of spring known as the helical door spring, which is
used for closing door and gates.
The object of my invention is to construct a spring hinge that will shut or close.
a door or gate, at the same time preventing the slamming thereof.
My invention consists essentially in combining with a helical door spring, an
arrangement consisting of a piston working in a cylinder. When the door is.
opened, it automatically closes itself in such a manner that it is prevented from
slamming against the jambs.
In carrying my said invention into practice, I provide an ordinary helical door
spring which is attached to the door jambs, and along the upper or lower edges of
the movable longitudinal arm, I furnish a toothed rack which gears into a pinion
attached to a plate connected with the door, the said pinion gearing likewise into a
second toothed rack placed longitudinally with the first mentioned rack. The
second rack being attached or forming part of the piston. With the piston rod is
combined an air cylinder forming a cushioned mechanisin to deaden the force of the
spring and prevent the door from slamming.
At the extreme end of the longitudinal arm I provide an anti-friction roller
working on a metallic plate attached to the door, the said arm being firmly held..
against the door by the action of the spring.
By combining a door spring with a piston and air cylinder, by means of a
rack and pinion or equivalent as herein described, the movement of the door is
controlled.
The opening of the door operating the longitudinal arm draws out the piston rod
by means of the racks and pinion. The tension of the spring being controlled by
the concussion of the air in the cylinder, the door is thus prevented from slamming
against the jambs.
Dated this 21th dow of Ontake 1000
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or Additions to Springs for Doors.
I, ALFRED BEESLEY, of Aston Villas, Wellhead Lane, Perry Barr, in the.
County of Stafford, Cycle Machinist, 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:-
My invention relates as hereinafter described to spring hinges for doors and..
relates principally to that class of spring known as the helical door spring which is ...
used for closing doors and gates.
The object of my invention is to construct a spring hinge that will shut or close
a door or gate, at the same time preventing the slamming thereof.
My invention consists essentially in combining with a helical door spring an
arrangement consisting of a piston working in a cylinder. When the door is

page_text: opened, it automatically closes itself in such a manner that it is prevented from
slamming against the jambs.
In carrying my said invention into practice I provide an ordinary helical door
spring which is attached to the door frame, and to the movable longitudinal arm I
furnish a projecting socket into which works freely a projection formed on the end
of the piston rod, the said projection being at right angles thereto.
With the piston rod is combined an air cylinder forming a cushioned mechanism,
to deaden the force of the spring and prevent the door from slamming.
At the extreme end of the longitudinal arm I provide an anti-friction roller
working on a metallic plate attached to the door, the said arm being firmly, held
against the door, by the action of the spring.
By combining a door spring with a piston and air cylinder by means of a right
angular projection or its equivalent formed on the piston rod, as herein described,
the movement of the door is controlled.
The opening of the door operating the longitudinal arm draws out the piston rod,
the tension of the spring being controlled by the cushion of air in the cylinder, the
door is thus prevented from slamming against the jambs.
I will describe my invention in reference to the accompanying drawings, the
same letters of reference indicating similar parts throughout.
Figure 1 is a front elevation, Figure 2 a sectional plan, and Figure 3 an end
elevation of my improved door spring attached to a door and door frame.
A, is the door and B the door frame, C is the cylinder furnished with a small
aperture at a Figure 2, for permitting air to pass thereto. Dis a pivoted fastening
attached to the door frame, E is the piston rod, e the piston, the piston rod
terminating into a right angular projection F. His an ordinary helical door
spring attached to the frame of the door and connected to the angular projection F,
by the socket J attached to the bracket I forming a pivot bearing.
The anti-friction roller K attached to the arm L of the helical spring, is held
firmly against the door by the action of the spring.
All these parts being in position and co-operating with each other form a
combined mechanism for controlling the movement of the door and preventing it
from slamming.
When the door is opened as shown by the dotted lines Figure 2, the piston
rod E is drawn out, the projecting part F working freely in the socket J, the
cylinder turning on the pivoted fastening D causing the piston e to travel beyond
the aperture a and permitting air to pass to the cylinder C. When the door is
shut, the force of the spring is retarded by the cushion of air in the cylinder, thus
preventing the rapid action of the spring and avoiding the slamming of the door
against the jambs.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:―
1. The combination with a helical door spring, of a pneumatic door check
consisting of a cylinder provided with a piston and piston rod whereby the cushion
of air is utilized as a retarding medium, substantially as described and illustrated in
the drawings.
2. The door check consisting of a spring hinge, the air cylinder and its piston
and piston rod, combined with the pivoted fastening D and the right angular
projection F and the bracket I combined and arranged substantially as set forth
and shown in the drawings.
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لبيت
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T 1
1000
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.