CERTAIN IMPROVEMENTS IN SELF-ACTING MULES FOR SPINNING AND DOUBLING
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by Joseph Brook at the Office of the
Commissioners of Patents on the 16th January 1883.
JOSEPH BROOK of Eccleshill near Bradford in the county of York, Mule
Spinner "CERTAIN IMPROVEMENTS IN SELF-ACTING MULES FOR SPINNING AND
DOUBLING"
My invention relates to simple and effective means or an effective method of
checking the carriage of self-acting mules employed in spinning and Doubling
whereby a steady and positive motion is obtained preventing the carriage from
running up with great force against the stoppers, especially when the mule
commences spinning also after the cops or bobbins have been doffed off which often
causes breakages, and spoils the work.
And my invention consists in checking the carriage by means of a friction break
which is actuated by a lever or levers and spring and by which I am able to run
the check band tension and power consequently with less wear and tear.
In carrying out my invention, I secure or cast at the back of the drawing up
scroll wheel, a pulley or drum over which I place a steel spring ring and leave a
space between the ends of the ring to allow for the compression of the steel ring
when pressure is placed on the surface of the pulley or drum; in the centre line of
the steel ring and on each side I secure or rivet two wrought iron straps the straps
being placed side by side on the top surface of the steel ring; the wrought iron
straps are made at the ends with lugs or bosses and a rod or lever is passed through
the boss or lug and secured in position by nuts, the other end of the rod or lever is
coupled to another lever which is fitted onto the boss of the friction box lever and
secured in position by set nuts; the other wrought iron strap is also made at the
end with a lug or boss in which is passed the screwed round end of a lever or rod
which is secured in position by nuts; the head of the lever or rod is secured to a
lever or bar working on a stud which is fixed in a bracket bolted to the floor;
under the lever or bar is fitted a steel spring which is fixed to the bracket or to
the floor. And I may employ a lever made with a projecting curved guide; on
and over the lever works a friction pulley or roller which is placed and works on
a small shaft working in bearings which are secured to the carriage. and a steel
spring is fitted between the side of one of the bearings and the side of the pulley

page_text: or roller to bring the pulley or roller in position after having travelled over the
curved projecting guide.
When the friction box falls in gear to draw up the carriage of the mule, the
lever secured to the friction box stud and to one of the wrought iron straps is
pressed down which actuates and brings nearly in contact with the surface of the
pulley or drum fitted or cast at tho back of the drawing up scroll wheel the steel
ring until a stud secured to the carriage frame comes in contact with the top of
the bar having a steel spring and as the said stud travels over the bar it presses
down the bar and consequently pulls down the lever connected to the end of the
bar and to the wrought iron strap, causing the steel ring to close and grip the
surface of the pulley or drum of the drawing up scroll wheel and therefore to check
the travel of the carriage and directly the friction box is lifted out of gear the
pressure is removed from the surface of the pulley or drum leaving the scrolls free
in action. If I employ the lever having the projecting curved guide, when the
pulley or roller comes in contact with the top of the bar having a steel spring and
as the pulley or roller travels over the bar it pulls down the lever connected to the
end of the bar and to, the wrought iron strap, causing, the steel ring to close and
grip the surface of the pulley or drum of the drawing up scroll wheel, therefore
checking the travel of the carriage directly the pulley or roller secured to the
carriage frame comes in contact with the guide and travels on the guide it causes
the pulley or roller to change places and removes the pressure from the surface of
the pulley or drum of the drawing: up scroll leaving the scroll free in action.