A Door Silencer.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
A Door Silencer.
I, GEORGE BOYD THORNTON, of 18, Princes Street, Edinburgh, in the County
of Midlothian, North Britain, India Rubber Manufacturer, do hereby declare the
nature of this invention to be as follows:-
This invention relates to a door silencer and consists of a cylindrical piece of
rubber which is held within a brass or other metal holder which is attached to the
inside of the door frame. A portion of the rubber projects from its holder, for
the door to strike against when the door closes or is closed. Inside the holder,
between the inner end thereof and the end of the rubber, there is interposed a
spiral spring, which increases the resiliency of the rubber and ensures that the
rubber, after compression by the closing of the door, is returned to its normal
position when the door is opened again.
I may form the rubber of other section than round or cylindrical; and if
desired, I may substitute other material for the rubber, the spiral spring contained
in the holder giving the necessary resiliency to the silencer. For example,
the projecting portion from the holder may be formed as a metallic sliding tube
piece with or without a head or cushion of rubber or other soft material.
Tatal this 21st dov of November 1808
JOHNSONS,
Petitioner's Agents,
115, St. Vincent Street, Glasgow.
A Door Silencer.
I, GEORGE BOYD THORNTON, of 78, Princes Street, Edinburgh, in the County
of Midlothian, North Britain, India Rubber Manufacturer, 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:
This invention relates to a door silencer and consists of a cylindrical piece of
rubber which is held within a brass or other metal holder attached to the
inside of the door frame. A portion of the rubber projects from its holder, for
the door to strike against when the door closes or is closed. Inside the holder,
between the inner end thereof and the end of the rubber, there is interposed a
spiral spring, which increases the resiliency of the rubber and ensures that the
rubber, after compression by the closing of the door, is returned to its normal
position when the door is opened again.

page_text: The accompanying drawings in which Fig. 1 is a side elevation.
Fig. 2 a plan and Fig. 3 a front elevation of a portion of a door frame, clearly
shew one example of the silencer.
In the said drawings A represents the piece or buffer of rubber against which
the door strikes. B the metal holder within which the buffer is held, and C the
spiral spring for increasing the resiliency of the rubber and returning it to its
normal position when the door is opened again.
I may form the rubber of other section than round or cylindrical; and if
desired I may substitute other material for the rubber, the spiral spring contained
in the holder giving the necessary resiliency to the silencer. For example
the projecting portion from the holder may be formed as a metallic sliding tube
piece with or without a head or cushion of rubber or other soft material.
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
1 claim is:-
1. In a door silencer having a rubber or rubber headed buffer, the arrangement
of spiral spring, substantially in the manner as and for the purpose herein before
described and shewn in the accompanying drawings.
JOHNSONS,
Petitioner's Agents,
115, St. Vincent Street, Glasgow.