IMPROVEMENT IN MACHINES USED FOR SPINNING AND TWISTING FIBROUS MATERIALS
Year: 1885

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33
I JOHN REID of the Town of Almonte in the County of Lanark Ontario,
Mechanic, do hereby declare the nature of my invention for IMPROVEMENT IN
MACHINES USED FOR SPINNING AND TWISTING FIBROUS MATERIALS and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
The invention consists in the combination with the ordinary spinning and
twisting machinery of tighteners or double-grooved pulleys carried by arms on axles
as hereinafter described and claimed and its object is to avoid the necessity of
using tight bands for driving spindles.
Fig. I is a top view of a spinning frame in part with my improvement.
Fig. II is a front view hereinafter described.
Fig. III is also a front view.
Fig. IV is the arm with pulley and weight.
The machine shewn is of the ordinary character A being hollow spindles carried
by the rail B rotating by driving band C from the drum D, E is a double grooved
pulley hung on the end of the arm F that is hinged on the axle F2 attached to the
inain frame.
The arms may be of wood, cast or malleable iron steel or wire.
The driving band C from the drum D being put on comparatively slack the
under band passes over the top in one groove of the pulley E thence to the pulley
on the spindle A and returning to the double pulley, passes under in the other
groove, so that the pulley bears upon and takes up the slack, the arm I being
weighted at the end G, opposite the pulley to give the required pressure.
The weight is proportioned to the character of the work to be done.
The hinged arin shewn in Fig. IV carries at the upper end the double grooved
pulley E already referred to, near the centre is the hinge J by which it is attached
to the axle; from this point the lower portion of the arm strikes down at an
obtuse angle the extremity carrying the weight G necessary to secure the requisite
tension. The arm I is free to move or swing on its axle and allows for expansion
and contraction.
The band is kept tight at all times. The direction of motion is in an approxi-
mately straight line to the spindle A and the risk of slipping is prevented.

page_text: The driving bands of spindles from the nature of the material of which they are
composed generally stretch and become too long and slip.
My invention provides for the adjusting of the bands by the condition of the
levers and preserves all the friction required to produce the proper speed. Its
advantages are that the spinning and twisting will be done more evenly on
account of the uniform speed given to the spindles; less power is required to run
the spindles than when tight bands are used and the bands will last much longer.
When tight bands are used it is almost impossible to get them uniformly tight
while with my improvement no special care is necessary as the double grooved
pulleys weighted as described will take up the slack of the band uniformly and
insure uniform speed.
H is a shoulder on the under part of the spindle A Fig. III to prevent its moving
through the rail B when the tension would increase on the weighted arm
appertaining to that spindle. The use of a spindle with this improvement
balances the tension and keeps the spindle steady.
The shoulder itself consists of a metal band fixed round the spindle having
a broad flat surface at the top facing the rail where its circumference is greatest
and tapering downwards to nothing at the bottom. The position of the running
gear of the spindle affords a better opportunity of cleaning it than if situated
near the rail B as is usual; I am aware that the single grooved tightening pulley
has been in use for both bands and belts this I do not claim.
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 :-
(1) The combination with the spindle A and its driving band C of the oscillating
arm F and double grooved pulley E fitted to bear on the band for taking up the
slack substantially as described.
(2) The combination with the driving band C of spinning and twisting
machines the arm oscillating on shaft or axle F and having weighted arm I and
pulley arm F substantially arranged and for the purpose hereinbefore set forth.
(3) The combination in a spinning frame provided with double grooved tension
pulley E the spindle A provided with shoulder H substantially as and for the
purposes hereinbefore set forth.
(4) The shape of the arm manufactured of wire or other material as before
mentioned and carrying doubled grooved pulley as shown in drawing IV.
Dated this nineteenth day of October Eighteen hundred and eighty five years.