IMPROVEMENTS IN COMBING MA- CHINERY
Year: 1877

page_text: LETTERS PATENT to Charles Hoyle, of Keighley, in the County of York,
Machine Maker, for the Invention of " IMPROVEMENTS IN COMBING MA-
CHINERY."
Sealed the 21st August 1877, and dated the 21st February 1877.
PROVISIONAL SPECIFICATION left by the said Charles Hoyle at the Office
of the Commissioners of Patents on the 21st February 1877.
CHARLES HOYLE, of Keighley, in the County of York, Machine Maker.
MENTS IN COMBING MACHINERY."
"
"IMPROVE-
The object of this Invention is to dispense with the vertical lifter pins hithereto
used in certain kinds of combing machinery for elevating the "feed boxes," and this
I accomplish in two ways,-
-
Firstly. I attach rigidly to the under side of the feed box a pendant arm which
passes through a slot in the rack circle or bed to which the boxes are attached. By
means of brackets I attach to the steam chest a plate curved eccentrically from the
rack circle. The pendant arms before mentioned bear in the course of their
rotation upon the inner edge of the curved plate and the boxes are raised and
lowered accordingly.
Secondly. Instead of pendant arms attached to the feed boxes I may employ
cranked levers hinged at the bend upon the rack circle or bed, one arm of the lever
pressing against the curved plate as in the first instance, and the other against the
under side of the box.

page_text: The object of this Invention is to dispense with the vertical lifter pins hitherto
used in certain kinds of combing machinery for elevating the "feed boxes," and this
I accomplish in two ways.
Firstly. I attach rigidly to the under side of the feed box a pendant arm
which passes through a slot in the rack circle or bed to which the boxes are attached.
By means of brackets I attach to the steam chest a plate curved eccentrically from
the rack circle. The pendant arms before mentioned bear in the course of their
rotation upon the inner edge of the curved plate, and the boxes are raised and
lowered accordingly.
Figs. 1 and 2 of the accompanying Drawings will serve to illustrate the manner
in which I carry out the first part of my Invention.
A is the steam chest of an ordinary circular comb; B is a curved plate, the radius
of which is larger than that of the steam chest, and this plate is attached to the
steam chest by brackets C; D is the carriage on which the feed boxes E are fixed,
and in this carriage are slot holes F, one being underneath each box. To the under
side of each box is attached a pendant arm or lever G which passes through the
slot hole F, and as the carriage revolves the pendant arms are operated upon by the
curve B in such a manner as to raise the boxes and allow them to fall again at the
proper time.
Secondly. Instead of the pendant arms being attached to the feed boxes I may
employ cranked levers hinged at the bend upon the carriage, one arm of the lever
pressing against the curved plate as in the first instance, and the other against the
under side of the box.
Fig. 3 illustrates this part of my Invention, J being the cranked lever hinged at a,
the operation of which will be readily understood.
Having thus described the nature of my Invention and the manner in which the
same is to be performed, I would have it understood that I claim, the use of the
curved plate B acting upon the pendant arms G or cranked levers J, as and for the
purpose substantially as herein shewn and described.
In witness whereof, I, the said Charles Hoyle, have hereunto set my hand
and seal, this Seventeenth day of August, in the year of our Lord One
thousand eight hundred and seventy-seven.
CHARLES HOYLE. (L.S.)