IMPROVED APPARATUS FOR CUTTING OR SEVERING THE PILE OF PILED FABRICS
Year: 1886

page_text: I JOHN FARRAN of 17 Trafalgar Square Brook's Bar Manchester in the County
of Lancaster Machinist do hereby declare the nature of my invention for IMPROVED
APPARATUS FOR CUTTING OR SEVERING THE PILE OF PILED FABRICS 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 the construction of apparatus for which Letters Patent
No 7662 were granted to me bearing date the 24th day of Juno 1885 for "Improved
apparatus for cutting or severing the pile of piled fabrics."
The invention consists First of an improved arrangement of mechanism for
driving the card covered or other taking-up rollers of such apparatus and Secondly
of an improved arrangement of mechanism for letting-off the double cloth and
ensuring its correct delivery to the cutting apparatus. The nature of my said
invention will be readily understood on reference to the annexed drawing in
which
Fig. 1, represents a partial section of my pile cutting machine with my present
improvement shown as applied thereto, and
Fig. 2, a partial section showing part of the gearing.
a, a is the framing of the machine.
b, b is the main driving shaft, u represents the pulley which drives the strap for
actuating the knife n as described in the Specification of the above mentioned
Letters Patent, ƒ and g are the cutting bars mounted on the rail has before p is
the grooved table in which the knife carriers run.
According to my present invention I propose to drive both of the taking-up
rollers c, c¹ by means of toothed gearing d, d¹, d³, d³, d, d³, do, d' but instead of
fixing the toothed wheels de and d' direct upon the axles of the taking up rollers c, c¹
I mount the same loosely thereupon and I fix in the face thereof a driving pin c²
acting against a spring c³ attached to a lever c' which may be keyed upon the
axle as shown in connection with the lower taking-up roller c in Fig. 1. by which
means a certain amount of elasticity is imparted to the driving gear and too great
rigidity avoided.
I prefer however that the lever of one of the rollers (say c¹) should be mounted
also loosely upon the axis and provided with an arm or catch co taking into the

page_text: teeth of a wheel c keyed upon the axle of the roller so that when required the
arm c³ may be loosened and the wheel cº, turned backwards or forwards a tooth at
a time in order to equalize the strain upon the two cloths and thus ensure the
exact vertical position of the pile.
I also propose, to ensure greater regularity, to let off the double cloth by means
of two pin pointed or other suitable rollers x and y over and under which the cloth
passes and to gear these two rollers x and y together (and if preferred to the
taking-up rollers also) by means of a series of toothed wheels A, B, C, D, one C, of
which is made removable, so that either roller may be set a tooth backwards or
forwards when required to regulate the exact delivery of the double cloth to the
cutting arrangement.
Fig. 2. shows the application of a clutch box and lever for throwing the first
pinion of the taking-up motion into and out of gear with the main driving shaft.
When the letting-off mechanism is not connected by gearing direct with the
taking-up mechanism, one of the letting-off rollers must be provided with a friction
band and weights to prevent it from delivering the cloth too fast and to keep it at
the necessary tension.
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
First. The novel arrangement of mechanism for letting off the double cloth and
for regulating the delivery of the same to the pile cutting apparatus and
Secondly. The method of driving. both of the taking up rollers by means of
spring levers and toothed wheels all constructed and operating substantially as
herein before described.