Improvements in Window Catches or Fasteners.
Year: 1895

page_text: Date of Application, 27th July, 1895
Complete Specification Left, 22nd Apr., 1896-Accepted, 23rd May, 1896
PROVISIONAL SPECIFICATION.
Improvements in Window Catches or Fasteners.
I, CHARLES ZAPP, of Brunswick Street, Chorlton-upon-Medlock, Manchester, in
the County of Lancaster, Clerk, do hereby declare the nature of this invention to
be as follows:-
This invention is designed to provide a window catch or fastener which will
hold the sashes securely and prevent windows rattling.
It consists essentially in making the lever of wedge shape and the catch that
receives it of corresponding shape so that when brought together the one fits
closely into the other to prevent movement and consequent rattling.
In carrying out the invention I construct the pivoted or locking lever of inclined
or wedge shape and the catch with which it engages of corresponding shape
The taper or
internally so that the one will lock or jamb itself inside the other.
inclination of the two parts is in the direction of movement.
In addition to or instead of the inclined shape of the pivoted lever a projection
or pin may be affixed thereto which will also engage with the fixed part of the
catch to form a lock or device to prevent movement between the two parts of
the fastener and to draw the two parts and the sashes close together.
341 1
" T1 1005
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Window Catches or Fasteners.
1, CHARLES ZAPP, of Brunswick Street, Chorlton-upon-Medlock, Manchester, in
the County of Lancaster, Clerk, 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 is designed to provide a window catch or fastener which will hold
the sashes securely and prevent windows rattling.
It consists essentially in making the fixed or stationary lever or bar of inclined
or wedge shape on the inner side and the pivoted lever or catch that engages
with it of suitable shape so that when brought together the one fits closely
against the inner side of the other forcing the windows apart with the sashes
against the framing and so preventing movement and consequent rattling.
It will be fully described with reference to the accompanying drawing.

page_text: The movable pivoted lever B is provided with a projection pin or shoulder b
either of wedge shape or set in such a way that when brought into position to
fasten the window it presses against the inner side a of the lever A and locks
or jambs itself inside of it thereby pressing the sashes apart and wedging them
against the framing and thus preventing shaking and rattling.
To facilitate the working of the projection or pin against the catch, the former
may be provided with a pulley runner.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is.-
A catch or fastener for window sashes constructed with an inclined inner
face a on the fixed or stationary lever A and a projection pin or shoulder b
with or without a pulley on the movable pivoted lever B whereby the sashes are
forced apart and caused to jamb themselves against the framing of the window
to prevent shaking and rattling substantially as described.
Deted this 01
A1 1000
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.