Ax IMPROVED TRUSS
Year: 1865

page_text: LETTERS PATENT to Christopher Easby, of 191, Rockingham Street,
Sheffield, in the County of York, Truss Manufacturer, for the Invention
of "Ax IMPROVED TRUSS."
Sealed the 8th June 1866, and dated the 12th December 1865.
PROVISIONAL SPECIFICATION left by the said Christopher Easby at
the Office of the Commissioners of Patents, with his Petition, on
the 12th December 1865.
1,
I, CHRISTOPHER EASBY, of. 191, Röckingham Street, Sheffield, in the
County of York, Truss Manufacturer, do hereby declare the nature of the
said Invention for "AN.IMPROVED TRUSS," to be as follows, that is to
say:
I use an ordinary steel spring. waistband, but instead of affixing the pad
directly thereto I mount it upon a short arm, one end of which is circular,
and passes through a collar at the top of the pad, and the other flat for being
secured to either end of the waistband.. The collar at the top of the pad
allows it to slide along the pin or circular part of the arm upon which it can
be adjusted longitudinally, and fixed by a set screw at the top of the collar.
This mode of mounting the pad also allows it to turn upon the pin so that it

page_text: .can be adjusted at a greater or less angle with the band vertically, and fixed
in position by a second set screw. The flat part of the arm has two per-
forations, one circular and the other in the form of a segmental slot, through
each of which a screw is inserted for securing the arm to the waist band; the
arm radiates upon one of the screws, and is fixed in position by tightening the
other which passes through the segmental slot; by this means the pad has a
third or radial vertical adjustment.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Christopher Easby in the Great Seal Patent Office on the
12th June 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHRIS-
TOPHER EASBY, of 191, Rockingham Street, Sheffield, in the County of York,
Truss Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date. the Twelfth day of December, in the year of our
Lord One thousand eight hundred and sixty-five, in the twenty-ninth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Christopher Eashy, Her special licence that I, the said Christopher
Easby, my executors, administrators, and assigns, or such others as I,
the said Christopher Easby, my executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "AN
IMPROVED TRUSS," upon the condition (amongst others) that I, the said
Christopher Easby, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Christopher Easby, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement :-
.I use an ordinary steel spring waistband, but instead of affixing the pad

page_text: pau allows it to slide along the più or circular part of the arm, upon which i
can be adjusted longitudinally, and fixed by a set screw at the top of the collar
as required. This mode of mounting the pad also allows it to turn upon the
pin so that it can be adjusted at a greater or less angle with the band
vertically, and fixed in position by a second set screw. The flat part of the
arm has two perforations, one circular and the other in the form of a segmental
slot, through each of which a screw is inserted for securing the arm to the
waistband; the arm radiates upon one of the screws, and is fixed in position
by tightening the other which passes through the segmental slot; by this
means the pad has a third or radial vertical adjustment.
EXPLANATION OF THE DRAWING.
The accompanying Drawing shews the form of the radial arm and mode of
mounting the pads thereon.
Fig. 1 represents one of my improved trusses formed with the radiating arm
having an oscillating pad mounted thereon (half size); the remaining illus-
trations are full sized. Fig. 2 shews the mode of mounting and fixing a pad
of the ordinary form; Fig. 8 is a vertical section taken through the centre of
the pad, Fig. 2, and shews the internal metal eye; Fig. 4 shews the mode
of fitting the radial arm to the waistband and different positions in which it
can be set; Fig. 5 is a view of the back of the oscillating pad, and shews
the mode of fitting the metal eye thereto; Fig. 6, a side view of the latter.
Figs. 7, 8, and 9 respectively illustrate the vertical and inclined positions
(more or less) to which the oscillating pad can be set.
a is the radial arm, flat at one end and circular at the other; b, the centre.
stud or screw upon which the arm radiates vertically. This arm may be
made in a cranked or curved form, as well as straight, if desired.. c, a slot
in the flat end of the arm; d, the fixing stud or screw; e, the metal eyes of the
pad; f, g, set screws for fixing the pad in position. The radial arms can be
fitted to either end of the band, and thus the pad be changed from right to
left, and vice versa, or both ends may be fitted therewith. The step e is
secured to the band by two screws which are set to the same gauge as those
by which the radial arm is fixed, so that one can take the place of the other
when changing the pad.
I wish it to be understood that I do not restrict myself to the exact size
and form of the arm and pads respectively shewn upon the Drawing..

page_text: I claim the radial arm and radiating and oscillating pads adjustable
thereon.
In witness whereof, I, the said Christopher Easby, have hereunto set my
hand and seal, this Twelfth day of June, in the year of our Lord
One thousand eight hundred and sixty-six. ¨*
CHRISTOPHER LASBY. (LS.)