IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1878

page_text: LETTERS PATENT to Christopher Catlow, of Burnley, in the County of
Lancaster, Overlooker, for the Invention of "IMPROVEMENTS IN LOOMS FOR
WEAVING."
Sealed the 28th June 1878, and dated the 3rd January 1878.
PROVISIONAL SPECIFICATION left by the said Christopher Catlow at the
Office of the Commissioners of Patents on the 3rd January 1878.
CHRISTOPHER CATLOW, of Burnley, in the County of Lancaster, Overlooker.
"IMPROVEMENTS IN LOOMS FOR WEAVING."
The Invention relates,―
Firstly. To improved appliances for operating the healds and securing the required
dwell, consisting of a combination of springs and tappets, the heald roller or rollers
being supported by brackets and arms, the springs connected with the heald rollers
being attached to the hald roller and to a standard.
In some cases I employ two rollers, the heald straps being passed inside such
rollers.
Secondly. The fast driving pully of the loom I place eccentric to the driving
shaft, so that the driving strap is tight when the loom is heating up, and slack
when the loom knocks off and the brake is being applied.
Thirdly. To improved construction of "swell" and adjustable stop rod finger.
The swell is provided with an overhanging lip or end, the stop rod finger is provided
with an adjustable set screw, the head of which acts against the projecting end of
the swell; the latter I prefer should be bolted to the slay beam.
Fourthly. To ensure more direct application of the spring connected with the
stop rod, I attach links and spiral spring directly from the crank arm to a lever for
operating the stop rod and stop finger.
Fifthly. To compensating for wear of brasses of crank arms, I introduce between
flanges of the brasses dents or strips of metal; when the brasses or the neck of
the crank becomes worn, one or more of the dents is removed, and the cotter driven
up tight secures the whole.

page_text: Sixthly. To improved apparatus for taking up the cloth as woven, I employ an
additional roller, made slightly convex, so as to secure a more even grip or hold across
the width of the piece. The convex roller is employed in combination with the
emery or rough roller and the cloth roller or beam.
Seventhily. To improved appliances for steadying the rotation of the tappet shaft 5
and the crank shafts when the necks become worn. I employ to each of the shafts
referred to a boss or bosses, having an arm extending therefrom, and provided with
slot holes through which bolts are passed and secured, so as to maintain a proper
relative distance between the said shafts.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Christopher Catlow in the Great Seal Patent Office on the 3rd
July 1878.
"
CHRISTOPHER CATLOW, of Burnley, in the County of Lancaster, Overlooker.
IMPROVEMENTS IN LOOMS FOR WEAVING."
The Invention relates,―
Firstly. To improved appliances for operating the healds and securing the required
dwell, consisting of a combination of springs and tappets, the heald roller or rollers
being supported by brackets and arms, the springs connected with the heald roller
being attached to the heald roller and to a standard.
In some cases I employ two rollers, the heald straps being passed inside such
rollers.
Secondly. The fast driving pully of the loom I place eccentric to the driving
shaft, so that the driving strap is tight when the loom is heating up, and slack whon
the loom knocks off and the brake is being applied.
Thirdly. To improved construction of swell. The swell is provided with an over-
hanging lip or end. The swell I prefer should be bolted to the slay beam.
Fourthly. To ensure more direct application of the spring connected with the
stop rod, I attach links and spiral spring directly from the crank arm to a lever
operating the stop rod and stop finger.
Fifthly. To compensating for wear of brasses of crank arms, I introduce between
flanges of the brasses dents or strips of metal; when the brasses or the neck of the
crank becomes worn, one or more of the dents is removed, and the cotter driven up
tight secures the whole.
Sixthly. To improved apparatus for taking up the cloth as woven, I employ roller
made slightly convex, so as to secure a more even grip or hold accross the width
of the piece. The roller is employed in combination with the emery or rough roller
and the cloth roller or beam.
Seventhly. To improved appliances for steadying the rotation of the tappet shaft
and the crank shafts when the necks become worn, I employ to each of the shafts
referred to a boss or bosses, having an arm extending therefrom, and provided with

page_text: thereof.
DESCRIPTION OF THE DRAWINGS.
The improved appliances for operating the healds and securing the required dwell
consists of a combination of springs and tappets A, A', the heald roller or rollers B
being supported by brackets C and movable arms D; a second plan being the
springs E, connected with the heald roller, and attached to the heald roller F and
to a standard G, see Fig. 3, as a third plan.
In some cases I employ two heald rollers F, F, the heald straps being passed
inside such rollers, as shewn at Fig. 4.
Secondly. The fast driving pully A of the loom I place eccentric to the driving
shaft B, so that the driving strap is tight when the loom is heating up, and slack
when the loom knocks off and the brake is being applied, see Figs. 5 and 6.
Thirdly. To improved construction of "swell" A. The swell is provided with an
overhanging lip or end B, by the use of which a greater amount of lift of the stop
rod tongue is obtained, the swell A being carried on the stud C by backed E bolted
to the slay beam F, see Figs. 7, 8, 9, 10. The swell I prefer should be bolted to the
slay, beam.
Fourthly. To ensure more direct application of the spring connected with the
stop rod J, I attach links K and spiral spring L directly from the crank arm M to
the link K operating the stop rod J and stop finger N, tension being applied to the
spring L by the movement of the crank arm M when the crank is near its
higher motion crossing, the tongue F being down. Should the shuttle fail to box
when the crank is down, the spring is carried and the tongue is free to rise, see
Figs. 7, 8.
Fifthly. To compensating for wear of brasses of crank arms, I introduce between
flanges of the brasses A, A, Fig. 11, dents or strips of metal B; when the brasses or
the neck of the crank becomes worn, one or more of the dents is removed, and the
cotter driven up tight secures the whole.
Sixthly. To improved apparatus for taking up the cloth as woven, I employ
roller A, made by preference slightly convex, so as to secure a more even grip or
hold accross the width of the piece. The roller A is employed in combination with
the emery or rough roller B and the cloth roller in beam C, see Fig. 12, a modifi-
cation being shown at Fig. 13. In each case the cloth must be passed around, under,
or over the several rollers, as indicated by arrows.
Seventhly. To improved appliances for steadying the rotation of the tappet shaft A
and the crank shafts B, when the necks become worn, I employ to each of the shafts
referred to a boss C or bosses, having an arm D extending therefrom, and provided
with slot holes through which bolts E are passed and secured, so as to maintain a
proper relative distance between the said shafts, see Figs. 14 and 15; or a link D
may be applied to the tappet shaft A for steadying that shaft only.
Having thus fully described the nature and object of this my said Invention,
together with the manner in which the same is to be performed or carried into
practical effect, I would have it understood that I do not claim any of the parts
separately; what I do claim is,―
Firstly. The arrangement and combination of parts for operating the healds, as
shewn, and described in reference to Figs. 1, 14, 2, 3, and 4.
Secondly. The use of the driving pulley B, constructed and applied in the mannor
and for the purpose described.
Thirdly. The swell A, having the overhanging lip B, and hinged, as described and
illustrated.

page_text: Fourthly. The application and arrangemeut of spring L, connecting the link K
directly with the crank arm M, as shewn and described.
Fifthly. The use and employment of the dents or strips B, for purpose described,
and as illustrated.
Sixthly. The use of rollers, as described (for taking up the cloth), and illustrated
by Figs. 12 and 13 of the Drawings.
Lastly. The use and employment of the arm or arms D, as and for the purpose
described.
In witness whereof, I, the said Christopher Catlow, have hereunto set my
hand and seal, this Twenty-eighth day of June, in the year of our Lord
One thousand eight hundred and seventy-eight.
Witness,
WALTER BRIERLEY,
Patent Agent,
Halifax & Blackburn.
C. CATLOW. (L.S.)