Improvements in Door Knockers.
Year: 1889

page_text: Date of Application, 13th Sept., 1889
Complete Specification Left, 13th June, 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Door Knockers.
We GEORGE EDMUND BALDWIN of 102 Southgate Road Middlesex and FREDERICK
HENRY VARLEY of 82 Newington Green Road Middlesex Engineers do hereby declare
the nature of the said invention to be as follows:-
The object of our invention is to construct a Door Knocker or like article in such
a manner that when such knocker is actuated the blow is struck on the inside of
the door instead of on the outside as, is usual whereby the sound. is more audible to
the inmates of a house than is the case where the blow is struck on the outside of
the door.
For the purpose. of our invention we construct the knocker of longer length than
usual and pivot it at about its centre in a socket piece which is fastened to or
recessed in the door. The upper part of the knocker which is passed through to the
inside of the door is curved or formed in such a manner that when the knocker is
actuated in the ordinary manner the end of the upper part will be struck against a
plate, knob, bell, or other appliance fitted on the inside of the door for producing the
sound the portion of the knocker outside not coming in contact with the door.
The socket piece is so constructed that the movement of the knocker is
limited.
The knocker may be balanced on its pivot that when in its normal position the
striking end of same is away from the plate, knob, bell, or other appliance.
Dated this 13th day of September 1889.
H. GARDNER,
166, Fleet Street, London, E.C..
Agent for the said G. E. Baldwin and F. H. Varley.
•
COMPLETE SPECIFICATION.
Improvements in Door Knockers.
We, GEORGE EDMUND BALDWIN of 102 Southgate Road, Middlesex, and
FREDERICK HENRY VARLEY, of 82 Newington Green Road, Middlesex, Engineers,
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 :-
The object of our invention is to construct a Door Knocker or like article in such
a manner that when such knocker is actuated the blow is struck on the inside of the
door instead of on the outside as is usual, whereby the sound is more audible to the
inmates of a house than is the case where the blow is struck on the outside of
the door.
For the purpose of our invention and as shown on the annexed drawings, we
construct the knocker A of longer length than usual and pivot it at B in a socket
piece C which is fastened to or recessed in the door D. The upper part A of the
knocker which is passed through to the inside of the door is curved or formed in
such a manner that when the knocker is actuated by the drop ring E in the ordinary
manner, the end F of the upper part will strike against a plate G, knob, bell, or other
appliance fitted on the inside of the door D for producing the sound, the portion E
of the knocker outside not coming in contact with the door.
The socket piece C is so constructed that the movement of the knocker is limited
by striking against the edges H, I, of the inner plate J which may be cushioned
to render the sound inaudible or nearly so from the outside.

page_text: The knocker A or F is balanced on its pivot B, or has a spring L, so that when
in its normal position, the striking end F which is preferably jointed to A is kept
away from the plate, knob, bell, or other appliance.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The manufacture of an internal knocking knocker operated from the outside of a
door and producing sound from the inside of a door, substantially as shown on the
drawing and as described.
The low day or vun
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said George Edmund Baldwin and Frederick Henry Varley.