Year: 1886

page_text: Date of Application, 15th May, 1886.
. Complete Left, 1st Jan., 1887.
Complete Accepted, 1st Feb., 1887.
We JOSEPH HENRY BEAN of Upper Mill Hill, Hardware Merchant, and WILLIAM
GAINES, of Tolson Street, Sunny Bank, Manager, both of Leeds in the County of
York do hereby declare the nature of this invention to be as follows :—
The object of our invention is to provide an apparatus for closing doors and pre-
venting slamming of the same, such arrangement being of an effectual, and at the
same time of a more simple construction, than those now in use.
In these improvements we employ the ordinary metallic cylinder which is firmly
secured to the door frame; the spring, piston, and piston rod therein are also of
ordinary construction.
At the outer end of the piston rod is mounted a pulley, this pulley is engaged with a
quadrant, hinged to a bracket attached to the casement at one end thereof, and the
other end to a rod of suitable length coupled to a stud or bracket on the door frame.
On the door being opened a radial movement is imparted to the quadrant by the
arm attached by means of a stud to the door frame. The aforesaid pulley being
engaged with such quadrant rolls thereon causing the piston to be withdrawn from
the cylinder and the spring therein to be compressed.
On the door being released the spring operates upon the piston through the medium
of the pulley, bringing back the quadrant to its original position and closing the door.
The ordinary atmospheric compression takes place in the cylinder, retarding the
spring at the end of its stroke and thus preventing the slamming of the door.

page_text: Fig. 1 is a plan. Fig. 2 a front elevation shewing general construction of our
apparatus for closing doors. Fig. 3 shews apparatus with door closed. Fig. 4 shews
apparatus with door open. Fig. 5 shews apparatus on the outside of door, with post
bracket attached to door casing.
In these improvements we employ the ordinary metallic cylinder A which is firmly
secured to the door easing by means of ordinary screws through the projecting pieces
B and C.
The spring D, piston E and piston rod F in the cylinder A are all of ordinary
construction..
At the outer end of the piston rod F is mounted a pulley G, this pulley G is
engaged with a quadrant H hinged to a bracket on the projecting piece B.
At the other end of the quadrant H is provided a socket K in which is hinged so
as to work freely a rod of suitable length, the other end of the rod L is coupled to
a stud or bracket M attached to the door frame.
To the socket K is applied a lipped projecting piece N for steadying the door as it
draws toward the closing point.
On the door being opened a radial movement is imparted to the quadrant H
through the rod L, the pulley G being engaged with such quadrant H rolls thereon
causing the piston E to be drawn from the cylinder A and the spring D therein to be
compressed.
As the door is opened the rod L swings outwards with the door as shewn at Fig. 4.
On the door being released the spring D operates upon the piston E through the
medium of the pulley G bringing the quadrant H back to its original position and
closing the door as shewn at Fig. 8.
The ordinary atmospheric compression takes place in the cylinder A retarding the
action of the spring D nearly at the end of its stroke, thus preventing the slamming
of the door.

page_text: The amount of compression is increased or reduced at pleasure by means of screw
0,whereby the size of opening for exit of air can be regulated.
In these improvements it must be observed that the cylinder A is rigidly attached
to the door casing and therefore is not effected by any movement of the other parts in
connection therewith, consequently when preferred such cylinder A may be placed
within the casement of the door and out of sight, the only parts being visible to the
eye are the end of the quadrant H, rod I and the stud or bracket. M on the door frame.
Having now particularly described and ascertained the nature of our said Invention
and in what manner the same is to be performed, we declare that what we claim is :—
1st. The arrangement and application of quadrant H in combination with pulley G,
connecting rod Land various parts forming the moving or working parts within the
cylinder A, substantially as and for purposes herein set forth.
2nd. The application of rod I attached to door frame and hinged within the socket
K at the end of quadrant H and operating substantially as herein set forth.
3rd. The combination of the various parts forming the apparatus, substantially as
herein set forth, for closing doors and preventing slamming to of same.
J. W. HARDING,
For the Applicants.