Improvements in the Nip Mechanism of Lister's Combing Machines.
Year: 1890

page_text: Date of Application, 7th June, 1890
Complete Specification Left, 7th Apr., 1891-Accepted, 9th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Nip Mechanism of Lister's Combing Machines.
I, JAMES CARROLL, of 95, Tennant Street, Bowling Old Lane, Bradford in the
County of York, Manager, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in the nip mechanism of Lister's machines
for combing fibrous material and its object is to steady the top uip and insure it
accurately meeting the groove in the bottom nip.
The said improvements consist in providing an adjustable guide to steady the top
nip and hold it firmly against the cross bar carried by the oscillating fork or
shafts"
as it is raised and lowered.
$6 cart
For this purpose I preferably replace the bolts connecting each end of said cross
bar to the arms of the oscillating fork by a modified form of bolt provided with a
nut instead of the ordinary head, between which said cross bar and arins are fixed.
The heads of such bolts are arranged to project and are extended towards the nip
so as to overlap and bear against the edge of such nip and form a guide for it which
may be readily adjusted by means of said nuts.
Dated this 6th day of Luna 1890
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in the Nip Mechanism of Lister's Combing Machines.
I, JAMES CARROLL, of 95, Tennant Street, Bowling Old Lane, Bradford in the
County of York, Manager, 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 improvements in the nip mechanism of Lister's machines
for combing fibrous material and its object is to steady the top nip and insure it
accurately meeting the groove in the bottom nip.
The said improvements consist in providing an adjustable guide to steady the top
nip and hold it firmly against the cross bar carried by the oscillating fork or
shaft" as it is raised and lowered.
cart
For this purpose I preferably replace the bolts connecting each end of said cross
bar to the arms of the oscillating fork by a modified form of bolt provided with a
nut instead of the ordinary head, between which said cross bar and arms are fixed.
The heads of such bolts are arranged to project and are extended towards the nip
so as to overlap and bear against the edge of such nip and form a guide for it which
may be readily adjusted by means of said nuts.
To fully describe my invention reference is made to the accompanying sheet of
drawings forming a part of this Specification, in which similar letters of reference
indicate corresponding parts in each of the figures.
Figure 1, represents such parts of the nip mechanism of a Lister's comb as are
necessary to illustrate my invention.
Figure 2, is a vertical section on a larger scale at the broken line a b in the
former figure. And
Figures 3, 4 and 5, are views of detail hereinafter referred to.
The bolts A, A connecting the cross bar B to the arms C, C, of the oscillating
fork have their heads D extended inwards so as to overlap or bear upon the top

page_text: nip E and hold it firmly against the cross bar B as such nip is raised and lowered.
Immediately behind the heads D a fine thread e is formed on the bolts fitted with
the nuts F which bear against the bar B when the bolts are tightened up by the
nuts and also allow the distance between D and B to be adjusted to take up
the wear.
The distance between the bar B and the arm C is regulated for the purpose of
bringing the top nip E in a line with the bottom nip I by the adjustable washer
or packing G fitted in each arm through which the bolts A. pass. And said
washers are provided with a nut to regulate the distance they project from the
arms C. An end view of such washer and nut is separately shown in Figure 3.
Figures 4 and 5, are two views at right angles to each other of one of the
bolts A:
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare what I
claim is:
The combination with the top nip of a nip comb, of adjustable guides, substantially
as herein shown and described and for the purpose specified and illustrated in the
accompanying drawings.
Dated this 6ith day of April 1891
DRACUP & NOWELL,
Bradford, Agents.