MITRE FRAME CRAMP
Year: 1885

page_text: GEORGE RICHARD HAMMOND May Street Snodland Kent Builder do hereby
declare the nature of this said invention for MITRE FRAME CRAMP to be as
follows:-
To have a double-handed screw with a handle in the centre each screw to have
one nutt each nutt to have double horns to be shaped to receive one bar between
horns placing two bars to each nutt fixed at one end with a pin each bar has a
stop shaped to receive an angle to be rivetted to a socket the sockets to slide on
the bars. Each socket to have a hole and pin so the same can be pinned on the
bars to what size required so that the four mitres of any frame can be cramped at
the same time.

page_text: I, GEORGE RICHARD HAMMOND of May 'Street Snodland in the county of Kent
Builder do hereby declare the nature of my said invention for A MITRE FRAME
CRAMP and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, reference being had to
the accompanying drawing forming part of this specification:-
:-
My invention has for its object the production of a simple and efficient cramping
device by means of which the four square mitres of any frame can be cramped at
one time and by one operation
-
Figure 1 is a pian or my improved cramp.
Figure 2 is an end view showing portions of my improved cramp.
Like letters indicate like parts in both figures.
"
-hand
My improved cramp consists of a square-threaded or other suitably formed
screw A One half of the said screw is left-hand and the other half right-1
with a central boss or head A¹ between them in which works a lever or handle B.
The said screw carries two nuts C one on each end and a double horn O¹ is formed
on each side of each of the said nuts C. A bar E of metal or other suitable
material is jointed to each of the said double horns C¹ by a pin C or other means
in such a manner as to admit of the said bar turning freely in the said horns and
of the adjustment of the said bar to any desired angle. A socket F is fitted to
each of the said bars E and slides freely thereon the said sockets being secured at
any desired positions on the said bars (according to the size of the frame to be
cramped) by means of pins G fitting into holes g in the said sockets and holes e in
the said bars, or by other convenient means. On the upper side of each of the
said sockets F is a small tapped stud or boss f upon which is mounted a stop-
piece H. The said stop-piece is formed with a rectangular flange H¹ which comes
in contact with and cramps the corner of the frame. The said flange H' is formed
with openings or slots H¹ to admit of the mitres being secured by nails or brads
while the frame is held in the cramp. The said stop-piece H is retained upon the
boss of the socket F by means of the screw K which enters the stud or boss f
and upon which screw the stop-piece H has a swivel motion.
The four portions of the frame having been inserted between the stop-pieces H
the whole can be cramped together by turning the handle or lever B.
The parts of my improved cramp may be of any suitable material and I do not
limit myself to the precise details herein set forth as the same may be modified
and varied without departing from my invention, but,

page_text: 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
I claim is
In a mitre frame cramp, the screw A operated by handle B or other suitable
means, nuts C with horns C¹, bars E, sliding sockets F and stop-pieces H, constructed
combined and operating substantially in the manner herein set forth.
Daved this 1st day or may AD. 1885.
T. N. PALMER & Co.,
For the Applicant.
T. N. PALMER & Co.,
For the Applicant.