Improvements in or connected with the Spindle-driving Bands of Spinning and Twisting Machines.
Year: 1890

page_text: Date of Application, 12th Aug., 1890–Accepted, 4th Oct., 1890
COMPLETE SPECIFICATION.
Improvements in or connected with the Spindle-driving Bands of
Spinning and Twisting Machines.
We, EDWARD PARRISH DRAPER Manufacturer, residing at 116 Dwight Street,
Holyoke, County of Hampden, State of Massachusetts, United States of America
and IRVING ADDISON LYON, Broker, residing at present, Hôtel Continental, Paris,
France do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
This invention relates to spinning and twisting machinery for fibrous materials and
pertains particularly to the spindle-driving bands for said machinery and to improved
devices for maintaining a constant and regular tension on said bands whereby a
regular rotary motion is imparted to the spindles of said machines and a uniform
twist is imparted to the fibrous material which may be twisted thereby, and the
invention consists in the peculiar construction and arrangement of the devices for
maintaining a uniform tension on said driving band combined with said band applied
in a peculiar manner to the driving drum and spindle-whirrs, all as hereinafter fully
described and pointed out in the claims.
In the drawing forming part of this Specification Fig. 1 is a plan view of a portion
of the frame of a spinning or twisting machine and of the driving drum thereof, the
spindle-whirrs, the driving band, and tension regulating devices embodying my
improvements. Fig. 2, is a transverse section. Fig. 3 is a perspective view of the
tension-governing frame and sheave showing connected therewith portions of the
driving band and of a cord by which a weight is attached to said frame.
In the drawing, 2 indicates portions of the framework at the ends of the spinning
machine, 3, portions of the bolster-rail thereof, and 4, the step-rail, a portion of one of
the logs at the end of the machine being indicated by 5. The spindles are indicated
by 6, and the whirrs thereof by 7, and 8 is the driving-drum which is given a
rotary motion by the application of a driving belt to a pulley 9, on one end of its
shaft in the usual manner.
The spindles 6 in the machine herein described are driven by an endless band 10,
applied to the drum 8, and to the whirrs 7 of the spindles in the manner shown, the
said frame of the machine having attached to each end thereof a guide pulley 12,
around which said band runs, the latter being applied to said whirrs and drum in such
manner as to bring a loop of the band, indicated by 13, to a position, preferably,
between the bands which drive the spindles each side of a centre line between the
ends of the frame, as shown in Fig. 1, said loop being formed by drawing a portion of
said band away from the drum while "banding-up" the machine, as it is termed, the
band being at the same time passed through the frame of the below-described tension
device, and the latter being held in any suitable manner to hold said loop in a distended
position until the below-described weight and cord shall be attached thereto. The said
loop 13 of the driving band is passed around a sheave 14 of the band tension device
below described, and by means of said device said loop is constantly drawn towards
the step-rail of the machine with a uniform tension, thereby producing the above-
mentioned effect upon the spindles to give them a uniform and rotary motion.
The said band tension devices consist of a metal frame, 15, made preferably of a
large steel wire or rod on which is first placed the sheave 14 about centrally between
the ends thereof, after which the ends of said rod are bent to the form shown in
Figures 1 and 3, whereby the eyes 16 are formed in said ends to provide for attaching
thereto a cord 17, which extends from said frame 15 over a suitable guide-roller 18
bung to a part of the frame of the machine, and on the lower end of said cord is
suspended a weight 19, whereby a constant tension is maintained on the driving

page_text: band 10. By hanging said tension device on the driving band, and attaching the
weight 19, thereto, as described, the said sheave and its frame are held in suspension
by said band and weight.
The said construction of the band tension devices is one of exceeding simplicity in
that the said frame 15 constructed from a single metallic rod, has one portion thereof
which constitutes the journal on which said sheave rotates (the latter being preferably
of suitable metallic construction) and the ends of said rod each side of said sheave
constitute at the same time the body of said frame and provide convenient means for
attaching the weight-bearing cord 17 thereto. The said weight 19 may be greater or
less according to the number of spindles served by the driving band 10, and to the
resistance said spindles may oppose to the requisite speed of rotation which said spindles
should have.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
In combination, the spindles, the driving band 10, the sheave 14 in engagement with
said band, the frame 15 on which said sheave rotates, a weight 19-and a cord 17
uniting said frame and weight, whereby said frame and sheave are held in suspension
by and between said band and weight, substantially as set forth.
Dated this 12th day of August 1890.