An Improved Form of Handcun.
Year: 1897

page_text: An Improved Form of Handcun.
I, ERNEST GEORGE HARMER, 15, Pendennis Road, Streatham, S.W., in the
County of Surrey, Commercial Manager, do hereby declare the nature of this
invention to be as follows:-
The object of my invention is to construct a handcuff in such a way as to prevent,
the withdrawal of the band by the manipulation of the metacarpal bones.
My invention has in view persons with thin hands, and more especially the
Asiatic races, although it also permits of the employment in cases of emergency of
a larger size of bandcuff than could otherwise be used securely, and it also.
increases the security of the ordinary handcuff.
According to my invention I attach a projection to the ordinary handcuff at the
middle point of the inner side of the wrist, and so designed as effectually to prevent,
the muscular constriction of the metacarpal bones.
This projection may be rigid, or it may be jointed by means of a pivot, ring,.
hinge, socket, spring, screw, clamp, or any other well-known device.
any size and shape, and made of any material or materials.
It may be of
I however prefer a hinged bar which, when not in use, occupies the area enclosed
by the circlet of the handcuff, and is thus carried conveniently in the pocket...
When the handcuff is brought into use, this hinged bar pushed out until it makes.
a certain angle, beyond which a stop prevents it from going.
Dated this Thirteenth day of January 1897.
I, ERNEST GEORGE HARMER, 15, Pendennis Road, Streatham, S.W., in the-
County of Surrey, Commercial Manager, 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 my invention is to construct a handcuff in such a way as to prevent
the voluntary or involuntary withdrawal of the hand, as for example by the.
manipulation of the metacarpal bones, or by the constriction of the muscles of the
hand.
My invention has in view persons with relatively thin hands or relatively thick
wrists, and more especially the Asiatic races, while it also permits of the employ-
ment in cases of emergency of a larger size of handcuff than could otherwise be
used securely, and it increases the security of the ordinary handcuff, whatever the
form of the hand may be.
According to my invention 1 attach a projection to any handcuff at the middle
point of the inner or under side of the wrist, and so designed as effectually to

page_text: prevent the muscular constriction of the hand, and especially of the metacarpal
bones.
This projection may be rigid, or it may be jointed by means of a pivot, ring,
hinge, socket, spring, screw, clamp, or any other well known device. It may be
of any size and shape, and made of any material or materials.
I however prefer a hinged steel bar which, when not in use, occupies the area
enclosed by the circlet of the handcuff, and is thus conveniently carried in the
pocket. When the handcuff is brought into use, this hinged bar is pushed out
until it makes a fixed angle beyond which a stop prevents it from going.
One form of my invention is represented in Figs. 1 & 2. In Fig. 1, a handcuff
of an ordinary pattern is thickened at the point A and a hinge is forged to it,
represented in section by the imperfect circle A D B C within which the projecting
bar D E works through the are F E, beyond which a stop at the point C prevents
its further extension. When the handcuff is adjusted, the projecting bar rests in
the palm of the hand and effectually prevents its withdrawal.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is;
1. The attachment of a projecting bar of any form & material, & in any way,
to any handcuff, substantially as described.
2. The combination of any handcuff with a projecting bar substantially as
described.
Dated this Seventeenth day of February 1897.