Improvements in Comos апа Dearers without Landing Bars known as Go-through Machines.
Year: 1887

page_text: Date of Application, 17th Sept., 1887
Complete Specification Left, 14th June, 1888
Complete Specification Accepted, 10th Aug., 1888
Improvements in Comos апа Dearers
without Landing Bars known as Go-through Machines.
334
We JOHN JARDINE of Raleigh Street Nottingham, Machinist, and JOHN
CHAMBERLAIN of Southey Street Nottingham, Machinist do hereby declare the nature
of this invention to be as follows:-
In order to show what defects are removed by our improvement it is necessary to
show first, why the combs and bearers hitherto used are not satisfactory.
The method most in use is the one applied to the class of Lace Machines called
curtain Machines, in which the bearer upon which the carriage is moved is of one
piece and as long as the comb.
-
This method works very well in the coarse machines commonly used for making
window curtains and similar coarse fabrics, but it is not at all suitable for fine guages
having the combs very close to each other.
In such fine guaged machines it is found that the black lead used as a lubricator
together with the fluff chafed off the material being worked, so fills up the narrow spaces
or grooves between the combs that they are soon clogged up, time is lost, and the
production of the machine lessened by the continual cleaning required.
The other method hitherto used in Go-Through machines making similar goods to
those made on Leavers Machines is one in which the combs are made similar, to those
used in the ordinary Leavers machines.
These combs being open at the bottom are not liable to be clogged with dirt, but
this arrangement is not altogether satisfactory as the following objections frequently
made prove.
1. The amount of costly work involved in the making and fixing of the brackets and
long strip bearers required by this method.
2. The difficulty of repairing these long bearers when damaged by a wrong gate,
such repair necessitating the taking out of a number of comb leads, and the consequent
stoppage of the machine sometimes for days.

page_text: 3. Another difficulty is occasioned by the combs and bearers being separate parts
of the machine, the bearers being fixed strips extending the length of the machine, so
that when a damaged comb lead has to be replaced by a new one, the grooves worn in
the bearers by the action of the carriages on them, do not coincide precisely with the
spaces in the new comb lead, and although this difference is very minute it is
sufficient to cause damage to the carriages by the binding action produced by this
forcing of the carriages into the old grooves against the bias given to them by the
difference between the old comb lead taken out and the new one put into the
machine.
We claim that our improved comb lead, carrying its own bearers, with a space
between them for the dirt to fall through remedies the whole of the defects herein
described.
We make our improved comb with. tabs, to these tabs are fixed the bearers, the
combs and bearers are then cast together, in short lengths generally two inches long,
so that a damaged lead can be replaced by a new one in a few minutes.
11 1
1004

page_text: 4344
without Landing Bars known as Go-through Machines.
We, JOHN JARDINE of Raleigh Street Nottingham, Machinist, and JOHN
CHAMBERLAIN of Southey Street Nottingham, Machinist, 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 :-
In order to show what defects are removed by our improvement it is necessary to
show first, why the combs and bearers hitherto used are not satisfactory.
The method most in use is the one applied to the class of Lace Machines called
Curtain machines, in which the bearer upon which the carriage is moved is of one
piece and as long as the comb.
This method works very well in the coarse machines commonly used for making
window curtains and similar coarse fabrics, but is not at all suitable for fine guages
baving the combs very close to each other."
In such fine guaged machines it is found that the black lead used as a lubricator
together with the fluff chafed off the material being worked, so fills up the narrow
spaces or grooves between the combs that they are soon clogged up, time is lost, and
the production of the machine lessened by the continual cleaning required.
The other method hitherto used in Go Through machines making similar goods
to those made on Leavers Machines is one in which the combs are made similar to
those used in the ordinary Leavers Machines.
These combs being open at the bottom are not liable to be clogged with dirt,
but this arrangement is not altogether satisfactory as the following objections
frequently made prove.
1. The amount of costly work involved in the making and fixing of the brackets
and long strip bearers required by this method.
2. The difficulty of repairing these long bearers when damaged by a wrong gate,
such repair necessitating the taking out of a number of comb leads, and the consequent
stoppage of the machine sometimes for days.
3. Another difficulty is occasioned by the combs and bearers being separate parts
of the machine, the bearers being fixed strips extending the length of the machine,
so that when a damaged comb lead has to be replaced by a new one, the grooves
worn in the bearers by the action of the carriages on them, do not coincide precisely
with the spaces in the new comb lead, and although this difference is very minute it is
sufficient to cause damage to the carriages by the binding action produced by this
forcing of the carriages into the old grooves against the bias given to them by the
difference between the old comb lead taken out and the new one put into the machine.
We claim that our improved comb lead, carrying its own bearers, with a space
between them for the dirt to fall through, as shown in the accompanying drawing,
remedies the whole of the defects herein described.

page_text: We make our improved comb with tabs, as shown in the drawing, to the tabs are
fixed the bearers, the combs and bearers are then cast together, in short lengths
generally two inches long, so that a damaged lead can be replaced by a new one in a
few minutes.
Our invention is represented in the accompanying full sized drawings, in which
Figure 1 is a carriage containing a bobbin.
Figure 3 is a comb with its two bearers marked 4 & 5.
Figure 6 is a section of the comb bar.
The shaded parts show a section through a comb lead and comb bar-showing
position of the comb and bearers, and of the metal in which they are cast, also the
place of the comb lead on the comb bar.
The drawings 7-8-9 show the two bearers and the comb separately.
We do not confine ourselves to the form of combs and bearers shown in the
accompanying drawings.
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
The improved comb lead with its bearers in two parts substantially as shown and
described and for the purpose stated.