An Improved Arrangement for Driving the Revolving Rubbers on the Double Retaining Rollers of Screw Gill Machines for Flax and other Fibres.
Year: 1888

page_text: Date of Application, 13th Jan,, 1888
Complete Specification Left, 13th Oct., 1888
Complete Specification Accepted, 16th Nov., 1888
An Improved Arrangement for Driving the Revolving Rubbers on
the Double Retaining Rollers of Screw Gill Machines for Flax
and other Fibres.
JOHN BROWN 164 Agnes Street Belfast Co. Antrim Ireland Mechanic do hereby
declare the nature of this invention to be as follows :-
This invention consists of a novel arrangement of driving back revolving
rubbers whereby a positive rotary motion is obtained without in any way interfering
with the jockey rollers and thereby retarding the slivers as in arrangements hitherto
used for the driving of these revolving rubbers.
This improved method of driving I obtain by a worm attached to one of the faller
screws in each head gearing into a worm wheel by which any desired speed and
direction is obtained, on the axle of this worm wheel is fixed a spur wheel which
drives a small pinion on the end of the revolving rubber thus securing a positive
rotary motion to the rubbers.
By this method of driving, the rubbers have all the advantages of previous inventions
used for the same purpose in addition to that of a positive drive and not in conjunction
with the slivers or jockey rollers.

page_text: CUBILETE
SPECIFICATION.
An Improved Arrangement for Driving the Revolving Rubbers on
the Double Retaining Rollers of Screw Gill Machines for Flax
and other Fibres.
JOHN BROWN 164 Agnes Street Belfast Ireland Mechanic, 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 mode of driving the back revolving rubbers for the back or retaining rollers of
screw gill machines for flax and other fibres will be understood from the following
description and annexed drawing in which
Fig. 1. is a plan view and Fig. 2. is a sectional view of so much of a screw
gil machine as is necessary to explain this method of driving back revolving
rubbers.
This improved method of driving I obtain by a worm (a) fixed to one of the faller
screws (b) in each head gearing into a worm wheel () by which any desired speed or
direction is obtained on the axle of the worm wheel (e) is fixed a spur wheel () which
drives a small pinion (d) on the end of each of the revolving rubbers (e) thus
securing a positive rotary motion to the rubbers (e).
By this method of driving the rubbers have all the advantages of previous inventions
used for the same purpose in addition to that of a positive drive and not in conjunction
with the slivers or jockey rollers (e¹).
The back or retaining rollers (f) and the revolving rubbers (e) revolve in the same
direction but that portion of their surfaces which are in contact are rubbing in opposite
directions.
These rubbers are covered in the usual manner with rubber cloth and can be very
easily renewed when worn.
This arrangement of driving may be simplified by driving two heads of revolving
rubbers by one worm and wheel and continuing the worm wheel axle through the
supporting stand (1) into the next or adjacent head and using spur gearing same as
on first head. This in no way interferes with the removal of the revolving rubbers
for cleaning or other purposes and the revolving rubbers of a screw gill machine with
eight heads may be driven by using four sets of worms and wheels instead of eight
sets or one set for each head.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The application of a positive drive to the back or retaining roller revolving rubbers
by means of a worm attached to the faller screw or like shaft revolving at a right
angle to the revolving rubbers so that each lead of rubbers may be driven separately
or that each two adjacent heads may be driven by one worm and wheel.
Dated this 11th day of October 1888