Improvements in the Construction of Bands or Sheets for Hackling and other Machines.
Year: 1892

page_text: Date of Application, 27th Aug., 1892
Complete Specification Left, 29th May, 1893-Accepted, 26th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Bands or Sheets for Hackling
and other Machines.
We, FRANK BARBOUR, Managing Director of Wm. Barbour & Sons Ltd. of
Hilden, Lisburn, in the County of Antrim, Ireland, and WILLIAM KAIN, of Hilden,
Lisburn aforesaid, Mechanic, do hereby declare the nature of this invention to be
as follows:
Hitherto it has been usual to mount the bars to which the hackles, pins or gills
used in hackling machines are attached, upon endless bands or sheets of leather, the
said bars being rivetted onto each sheet of leather by copper rivets, and there being
about four sheets to the breadth of the machine. By reason however of unequal
stretching of parts of such a band or sheet, the necessary correspondence between
the eyes, teeth or dogs of the band or sheet and the projections or recesses of the
driving pulley, requisite for ensuring a positive drive, has been imperfectly obtained
in practice, with the result that the economical and efficient working of the machine
has been detrimentally affected.
Now this invention has for object to produce a hackling band or sheet that
shall be inextensible in the direction of its length, and which can therefore
be positively driven at the same surface speed as the driving pulley over which it
passes.
For this purpose according to this invention the hackling band or sheet is made
of endless metal chains connected at intervals by cross bars that are provided with
recesses or projections on the inner or driving side and are so spaced apart that the
said recesses or projections therein or thereon will gear with corresponding pro-
jections or recesses as the case may be on the driving pulley or pulleys. To the
outside of the said cross bars are fixed the hackle bars to which the hackles, gills
or pins are attached.
A band or sheet thus constructed will be inextensible in the direction of its length,
and by using the cross bars for driving purposes the requisite correspondence between
the recesses or projections of the band or sheet and the projections or recesses on the
driving pulley or pulleys, necessary for effecting the positive driving of the band or
sheet will be ensured.
As will be obvious bands or sheets constructed as described can be used in machines
other than hackling machines.
DL: 1.
C
1005
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in the Construction of Bands or Sheets for Hackling
and other Machines.
We, FRANK BARBOUR, Managing Director of Wm. Barbour & Sons Ltd., of
Hilden, Lisburn, in the County of Antrim, Ireland, and WILLIAM KAIN, of Hilden,
Lisburn aforesaid, 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:-
It has been usual to mount the bars to which the hackles, pins or gills used in

page_text: hackling machines are attached, upon endless bands or sheets of leather, the said
bars being rivetted to each sheet of leather by copper rivets, and there being about
four sheets to the breadth of the machine. By reason however of unequal stretching
of parts of such a band or sheet, the necessary correspondence between the eyes,
teeth or dogs of the band or sheet and the projections or recesses of the driving
pulley, requisite for ensuring a positive drive, has been imperfectly obtained in
practice, with the result that the economical and efficient working of the machine
has been detrimentally affected. Also instead of mounting the bars on leather
bands, parallel chains have been employed carrying between them bars having
hackles thereon.
Now this invention has for object to produce a hackling band or sheet that shall
be inextensible in the direction of its length, and which can therefore be positively
driven at the same surface speed as the driving pulley over which it passes and in
which the hackle bars are so mounted that they will be better supported and the
hackles pins or gills carried thereby will act in a more advantageous manner than
in backling bands or sheets as heretofore constructed.
For this purpose according to this invention the hackling band or sheet is made
of endless chains connected at intervals by cross bars that are provided with
recesses, or with projections, on the inner or driving side, and are so spaced apart
that the said ręcesses or projections will gear with corresponding projections or
recesses, as the case may be, on the driving pulley or pulleys. To the outside of
the said cross bars are fixed the hackle bars to which the hackles, gills or pins are
attached.
And in order that the nature of this invention may be fully understood we will
proceed to explain the same by aid of the accompanying drawings wherein.
Fig. I is a side elevation, and
Fig. 2 a part plan illustrating a band or sheet for a hackling or other machine,
constructed according to this invention.
Fig. 3 is a detail view showing one of the cross bars.
A A are endless chains arranged parallel with one another and formed of flat
links jointed together as shown. These chains pass over pulleys B, one of which is
larger than the other but which are so arranged that the operative part of the belt
for the time being is vertical, or practically so, in the case of a hackling machine.
CC are cross bars connecting the said chains. Each cross bar is formed at each
of its ends with a flange D having two pins E (Fig. 3) formed in one therewith.
The cross bars are securely held in position between the corresponding links of the
chains A by passing the pins E through the eyes of the said links and rivetting
over their outer ends after the manner of the link pins A. The cross bars are
arranged at regular intervals and are formed or provided with recesses or apertures F
with which projections G on one of the pulleys B engage, whereby a positive
driving of the band or sheet is obtained. Each cross bar is also formed with a boss
or projection H whose outer surface is level with the outer surfaces of the flanges D,
so as to form a firm seat or bearing for the hackle bar which is held securely in
position by a set screw I tapped into the boss or projection H. The hackle bars
are each formed in two parts J and K one of which, viz. J, is a flat bar of iron
through which the set screw I passes, while the other part K is a wooden bar,
having a thin sheet metal covering K, it may be of brass, and a double row of
hackles K secured therein in the ordinary way. The two parts are secured together
by cross pieces M one at each end of the hackle bar. These cross pieces M are of
iron, welded or brazed to the part .I and tapped to receive screws M' which pass
through the part K and serve to hold the same in position. Each hackle bar, as a
whole is of such width in the direction of the length of the band or sheet that it
projects rearwardly over nearly three lengths of the links of which the chain is
composed whereby it will be very securely supported whilst in use, the hackles will
be caused to enter the flax in an advantageous manner, and the hackles will be
maintained in their proper position at right angles to the direction of movement.
The band or sheet instead of being constructed with two endless chains may have

page_text: three or more of such chains that are connected together and to the hackle bars in
the manner hereinbefore described.
Bands or sheets constructed as hereinbefore described may be used in card
feeding, gill spinning and other flax and tow preparing machines.
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 we are
aware it has been proposed to mount the pins or gills in a hackling machine on
cross-bars carried by endless chains and we make no claim to this feature broadly,
but what we claim is :-
1. A band or sheet for carrying the hackles in a hackling or other machine,
comprising endless chains connected at suitable intervals by intermediate cross bars
formed or provided with recesses or projections adapted to engage with corre-
sponding projections or recesses formed on or in a pulley over which the band or
sheet is to work, and hackle bars securely fixed to the said cross bars substantially
as herein described for the purposes specified.
2. The improved band or sheet for a hackling or other machine, constructed
substantially as described and shown for the purposes specified.
Dated this 20th do of M 1000
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.