IMPROVEMENTS IN THE CON- STRUCTION OF SPOOLS OR BOBBINS FOR USE IN THREAD OR YARN PREPARING MACHINES.
Year: 1878

page_text: LETTERS PATENT to James Aimers, of Galashiels, in the County of Selkirk,
North Britain, Engineer, for the Invention of "IMPROVEMENTS IN THE CON-
STRUCTION OF SPOOLS OR BOBBINS FOR USE IN THREAD OR YARN PREPARING
MACHINES.'
"
Sealed the 29th October 1878, and dated the 7th May 1878.
PROVISIONAL SPECIFICATION left by the said James Aimers at the Office
of the Commissioners of Patents on the 7th May 1878.
JAMES AIMERS, of Galashiels, in the County of Selkirk, North Britain, Engineer.
"IMPROVEMENTS IN THE CONSTRUCTION OF SPOOLS OR BOBBINS FOR USE IN THREAD
OR YARN PREPARING MACHINES."
This Invention relates to improvements in the spools or bobbins upon which the
woollen, linen, or cotton yarns or threads are wound as they pass from the con-
denser of the carding machine, and which spools or bobbins when full are placed
in the mules or spinning frames for the thread or yarn to be spun, or they may be
removed to and for use in other yarn or thread preparing machines.
And the nature and novelty of the said Invention consist in making the barrel
of the spool or bobbin of malleable iron, brass, or other metal tubing (in contra-
distinction to the wooden barrels now in use) with solid metal ends rivetted thereto
from the interior, to which the end discs which are preferably made of plates of
steel are secured by screws, the outer ends of which may form the journals on which
the spools or. bobbins revolve. The length of these metal barrelled spools or
bobbins may be varied according to the dimensions of the machines and the
purpose for which they are to be used; and they possess many advantages over
the ordinary spools or bobbins, particularly on account of their lightness, strength,

page_text: and durability, and ease of production of a truly cylindrical form without turning,
which cylindrical form remains permanent and free from the warping to which
wooden barrels are so subject.
i
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Aimers in the Great Seal Patent Office on the 6th November
1878.
JAMES AIMERS, of Galashiels, in the County of Selkirk, North Britain, Engineer.
"IMPROVEMENTS IN THE CONSTRUCTION OF SPOOLS OR BOBBINS FOR USE IN THREAD
OR YARN PREPARING MACHINES."
My said Invention relates to improvements in the spools or bobbins upon which 1
the woollen, linen, or cotton yarns or threads are wound as they pass from the
condenser of the carding machine, and which spools or bobbins when full are placed
in the mules or spinning frames for the thread or yarn to be spun, or they may be
removed to and for use in other yarn or thread preparing machines.
"And in order that the nature, novelty, and mode of performing my said Inven-
tion may be properly understood, I shall now proceed to describe the several
Figures on the Sheet of Drawings which I have hereunto appended for that
purpose, the same reference letters indicating the same parts on the several
Figures where shown.
Figures 1 and 2 are a longitudinal and a transverse section respectively taken ?
on the lines 1-1 and 2--2, each on the other, and Figures 3 and 4 are a side
and end elevation, all of a long-shaped bobbin used for the said purpose, and con-
structed in accordance with the improvements of my said Invention.
Referring to theso Figures the nature and novelty of my said Invention, and
mode of performing it or constructing these new or improved bobbins in accordance
therewith, consist in making the barrel part A of the spool or bobbin of malleable
iron, brass, or other metal tubing (in contradistinction to the wooden barrels here-
tofore in use) with solid metal ends A¹ inserted from the outside, and rivetted
thereto through both by the rivets a. The ends proper of the bobbins are made in
the form of thin discs or plates of steel (or it might be case-hardened iron), and
secured by steel or iron screws C inserted from the outer ends, the extremities c of
which are preferred to be made to form the journals on which the spools or bobbins
revolve. These bobbins or spools may be made of various lengths by simply
varying the length of the tubular metal barrel or body A between the usual discs B,
to suit the distance between the bearings carrying the bobbins and the dimensions
of the particular machines and the purpose for which they are to be used. These
improved spools or bobbins possess many advantages over those heretofore in use,
particularly on account of their lightness, strength, and durability, and ease of
production of a truly cylindrical form without requiring to be turned in lathes as
other bobbins are, which cylindrical form remains permanent and free from the
warping to which wooden barrels are so subject.

page_text: Having now described the nature of my said Invention, and the manner of per-
forming the same, I have to state that I do not confine myself to the precise details
herein described or delineated, but what I consider novel and original, and
therefore claim as the Invention secured to me by the herein-before in part recited
Letters Patent is, the construction of spools or bobbins for use in yarn-preparing
machines with tubular metal bodies or barrels. A and the ordinary hard metal discs
secured at their onds, all substantially as Herein described in reference to and shown
in the accompanying Drawings, or any mere modification thereof.
In witness whereof, I, the said James Aimers, have hereunto set my hand
and seal, this Fourth day of November, in the year of our Lord One
thousand eight hundred and seventy-eight.
TAMES ATMORS Gol