Improvements in the Construction of Jacquard or Dobby Machines.
Year: 1896

page_text: Date of Application, 28th Dec., 1896-Accepted, 20th Mar., 1897
COMPLETE SPECIFICATION.
Improvements in the Construction of Jacquard or Dobby Machines.
1 HENRY ARTHUR FIELDING, of Sycamore Street, Oldham Road, Manchester,
in the County of Lancaster, Jacquard Machine Maker, 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 Jacquard or dobby machines and the
same will be clearly understood on reference to the accompanying drawings and
from the following description thereof.
For the sake of clearness of illustration I have not shown all the parts of my
invention upon any one figure, but I wish it of course to be understood that many
of the parts hereafter described may be combined together in one machine
although illustrated separately as will be readily understood by any expert in
Jacquard machines.
Instead of using a solid griff having three or four sides I propose to construct
the said griff with two cast iron sides a a¹ preferably the ends as seen in plan
at Fig. 2, and end and side elevations at Figs. 1 and 3 respectively the said
sides a a' being joined together by stays bb and these end frames a a' have the
spindles or griff roda e c' cast in them (being preferably grooved for that purpose
see Figs. 1 and 3) instead of being inserted and fixed in cored or drilled holes as
'usual.
When a central or inner knife frame or rest is necessary a rail or bar d is or.
may be laid across the stays b (see Fig. 2) to support such frame or rest the rail d
being secured by screws d or by keys or cotters if required.
I make the levers e for working the griffs of wrought metal but instead of
forging on a boss or attaching a cast iron boss by pins bolts or screws I propose to
make the lever with the boss or thickened part e cast round the wrought bar as
seen at Fig. 4, and detached at Figs. 4A, 4B.
I also make the batten or cylinder frame with stays fi (see Figs. 5 and 6) like
the griff above described and on the rail or frame.at f where the hammer catch g
is 'situated a lug or projection is fitted or cast on in order to prevent the hammer
catch g from turning round and banging against the machine when the cylinder h
is beating up against the needles (see also detached section and plan Figs. 54
and 5). This lug is also applicable to other swinging or sliding battens.
I also propose to form lugs f* on the batten / through which the driving studs f
may be fitted and secured if necessary by a nut on the inner side of the frame f.
In cases where an extra needle plate or back plate is used in. order to fit such
plate i (see partial plan Fig. 8) more conveniently I sink or rebate that part of the
frame to which the back plate is fitted behind that part to which the needle boardi
is fitted, and thus the needle board and backboard can be independently fixed in
place, and the latter needs only one screw at each end.
1 further propose to dispense with the usual top frame of the machine and I
attach, the side frames kk together by means of stays.k and I so form the
top of the side. frames as seen in elevation at Figs. 5 and 6.and in plau at Fig. 7,
that the caps 3 batten hangers and other fittings may be fastened thereon.
At a lower position on the side frames kk (sec. Fig. 6) I cast or fit a shelf (or
projections) see detached inside elevation Fig. 64), to support the ends. of the
punched or perforated hook plate which inay also rest on, the stays kin
:

page_text: order to gain additional support and when necessary a cross rail (not shewo)
connecting the stays at the centre may be used as in the case of the' griff
above described.
The loose bars on which the hooks ordinarily rest may also be supported by
the shelves or projections as also may the guide bars used to keep the hook
bars in position. Or instead of using the book bars the perforated plate
may be made with corrugations (see Fig. 68) and these corrugations as well as
the perforations may be made by drop stamping or forging and at the same time or
by separate process.
I propose nlso to make the griff frame or partitions a which support the
knives of metal of varying thickness, that is to say thicker where the knives
rest, as seen at a detached views Figs. 4, 4", 4°, in order to increase their durability.
These partitions a' may be cast of suitable metal or drop forged or stamped, or cut
out of plates of metal having a thickened part where required, and in the latter
case the holes for the knives a may be made in the top griff frame before cutting
away the parts (at a*) not required, and by so doing the danger of bursting or
brenking the metal is minimised.
The thickened parts as of these knife frames or partitions a' is thus obtained
without the defects of the present system of rivetting or fastening on an additional
piece or thickness of metal.
The top flange a** of the partition a² (seen at Figs. 4, 4º) may be cast or drop
forged, or stamped or it may, by preference be turned over by an ascending,
descending, or sliding lever or block instead of the present method of fastening in
a cramp and turning the flange over by hammering.
Or instead of securing the partition a to the framing of the griff by hanging
from the flange a** as usual (see Fig. 4), the partition a³ may have a hole or
holes a³ (Fig. 4) stamped punched or cast in and fitting or resting upon suitable
projections a (shewn dotted at Fig. 2) from the griff castings a a¹ or other griff
framing.
'
When the cylinder is worked by a sliding batten the slide may either be round
or V shaped or as at present of an oblong or square section either throughout or at
the ends, and is arranged so as to have the drop brackets interchangeable in
order to obviate the necessity for having different brackets for each side of the
machine.
For this purpose I may make the slide as seen at m Fig. 9, with its ends mi² m²
at different heights one raised and oue lowered to suit the position of the cylinders h'h'
respectively.
Or I inay use a straight slide rod or bar and provide the drop bracket or frog
with holes in two lugs (see Fig. 10) at different heights corresponding with the
positions of the cylinders and thus in either case the same drop bracket or frog
may be used for either cylinder of a two cylinder machine.
prefer to secure the slide m to the drop bracket 1, especially in the case of a
straight slide, by passing its ends (which are made round) through the lugs 111 in
the frogs.
When using a round or other wrought iron or steel slide rod, the ends may be
Borewed or otherwise secured in the holes of the frogs, or should the slide rod be
of cast iron wrought iron ends may be cast in so as to facilitate the securing of the
frogs.
further, propose so to make the drop bracket of this sliding batten that the
guide holes or slots for the drop or hammer may be above the cylinder as seen on
Fig. 9, 94, 9, and 10 of the drawings (or below the said cylinder) instead of both
above and below as now constructed, and for this purpose I make the frog bracket
with a spindle n preferably of round form passing through a suitable bearing or
bearings n³n or guide holes or slots, the spring being preferably coiled around the
spindle or shank or acting between the hammer cross bar or base and a suitable part
of the bracket / or slide m. The cross bar, base or hammer head n may be cast or
screwed to the shank end and may be of any suitable form, to work wholly above.

page_text: the cylinder as seen on the drawings, or wholly below the cylinder as will be
understood without further illustration.
The frogs or brackets I may for the purpose of steadiness be joined together by
atays with screwed ends and secured by nuts on one side of the frog, or by a
shoulder or collar on one side &. a nut on the other, and in the case of a single
cylinder machine one stay may be passed through the back of the slide.
Or the slide may be made with one or both frogs cast thercon, as seen at Fig. 9B,
and in plan at Fig. 9, which shews both frogs cast on the spindle or slide m,
which passes through hearings cast or fitted to the side of the machine.
When
using the slide m shewn at Figs. 98, 9, I use bearings shewn at m* with caps
attached. If necessary a slot or flat may be cut in the spindle m aud a set screw
fitted to prevent the said spindle it round from turning in its bearings. In some
cases also each spindle end and its frog may be cast together and the two en-s
joined by suitable means to allow of adjustment if required..
In order to avoid changing the cylinders for cross border work by hand I employ
an automatic change motion (see Figs. 11, 12, 13) consisting of a chain g of lags.
or cards rotating, and carrying projections which cause to move brackets or lovers
connected with the cylinders, this chain being rotated or caused to rotate by
connections from the cards or batten, or card wires, or from the needles or hooks
or both, in the Jacquard machine, or an extra machine. For convenience I cut a
hole at desired intervals in the cards, so that whenever such a hole occurs a hook
or books may be worked or lifted, thus moving a lever o seen detached at Fig. 12,
carrying a catch.ol which works a ratchet wheel pl or its equivalent on the chain
cylinder shaft p and rotates it as desired. Assuming that the hole be cut at
the last card of the pattern, and that two repeats of the border and four repeats
of the middle are required, the hook would more the lever o twice thus moving the
chain. shewn detached at Fig. 13, two links, and presenting the third link of the
chain which having no projection or "riser" would thus lower the feet of a rod ŕ
connected with the engaging arms or catches s of the cylinder motion and by thus
lowering the said rod r would put this "middle" pattern cylinder into action.
A bole heing cut on the last card of the pattern for the middle, the links Nos. 3
45 and 6 would be exactly alike the last card of the fourth repeat of the middle
thus bringing on the seventh link which would cause the change required from
middle to border. Chains of any length may be used and if required a roller or
extra cylinder or bar may be attached, with or without springs in order to keep the
chain in position.
The upper end of the rod r may be connected to a balance lever » connected by
links see Fig. 11, to the catches s or the rod r may be connected to the catches &
by making the said catches form practically part of a balanced lever connected by
a pin to the rod which is or may he provided with a suitably curved slot ³
(see Fig. 114) to allow of the motion of the said catches.
Or the rudr may be connected to one of the arms of the rocking lever carrying
the catches s.by a short link (see Fig. 11B).
In order to prevent ove cylinder from turning without the other in two cylinder
machines and so throwing the cards out of their consecutive order further some-
times propose to gear one cylinder with the other as seen applied to a swinging
batten at Fig. 14, by the wheels t cast or otherwise formed or fixed to the cylinder
or lantern (see Fig. 144) or to its pivot or shaft, the said. wheels t gearing with the
carriers t', and the self adjusting central carrier 2 of larger size and working in a
slotted bearing as seen, aud thus if required at any time by reversing one cylinder
by an ordinary reversing catch or by a ratchet motion I can reverse the cards of
the other cylinder also.
In double griff machines I propose further to actuate the sliding or swinging
batten from the griff or griffs or spindles preferably by attaching a stud or
projection to the latter (say to the spindle c as seen dotted at Fig. 9B, or as
shewn at Fig. 14) acting in suitably shaped slotted or other equivalent brackets or
bracket in (Fig. 9") on the slide m, r, preferably in the case of a swinging

page_text: batten (Fig. 14) actuating a bell crank lever suitably connected by a link m
(or directly) to the bar t; each of these methods can be adapted either to a
swinging or a sliding batten.
In the case of a swinging batten, chain wheels and a chain may be used instead
of the wheels t and carriers t t..
In some cases I employ for-reversing the cards in a machine with two cylinders
a combination of levers which will pull over one cylinder and push over the other.
On a stud or shaft 1 (see Fig. 6) in a convenient position I place a bell cranked
lever B or equivalent combination of levers. From this lever I may attach an
arm u³ working over the cylinder h. On the lever B being pulled, the cylinders h h¹
are turned in the contrary direction to, that in which they usually work in order to
reverse the cards. These arms u³ u may be fixed in different positions on the
same lever and if necessary kept to the cylinders by means of springs. By
attaching projections to these arms u u' the catches u may be connected thereto,
or the catches may be connected to the lever B as shewn or may be pulled by
hand by means of a cord, and so may be lifted up in order to allow the cylinders
to be turned over in their reverse directions:
The arms may be set so as to permit both cylinders to be reversed simultaneously
or as may be otherwise preferred.
In order to reduce the power required to lift the weight of the griff, I propose
to add a secondary lever (see Fig. 4), which is attached to the principal lever e
by a link at & attached to the "stretcher" or other convenient part of the griff
by the link e. The position of the secondary lever e or levers may be mo.lified:
By this means the machine is worked more steadily and the power required to
raise the griff is considerably reduced, according to the position of the fulcra of the
levers.e & es.
This device is applicable to any number of griffs and if necessary to, further
reduce the weight to be raised the lever e' may be extended beyond its fulcrum and
a weight attached.
It will be understood that with slight modifications as to the strength and form
of parts, my invention is applicable to such dobby machines as are made with rising
& falling knives or griffs.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The construction of a Jacquard machine with improved knife frame griff, griff
levers, swinging or sliding batten or battens, stayed side frames without top frame
(and with or without the automatic change motion for cross borders) the aforesaid
improved parts being constructed substantially as and for the purposes herein before
described.
2. The construction of the griff with stays joining two sides or ends, substantially
as hereinbefore described.
3. The construction of the side or end of the griff with its spindle cast thereto
substantially as hereinbefore described.
4. The construction of the wrought iron levers for the griffs with metal bosses
cast around the same substantially as hereinbefore described.
5. The construction of the knife frames or partitions with solid thickened parts
for supporting the knives substantially as herein before.described.
6. The construction of the batten with stays joining two parts or sides,
substantially as herein before described.
7. The construction of the batten with. lugs for carrying the driving pegs or
projections substantially as.hereinbefore described.
8. The construction of the batten with projections carrying the hammer catches
and so fitted or formed as to prevent the said catches from coming in contact with
the machines.
9. The construction of the machine with stays connecting two side frames so

page_text: formed as to support the batten hangers and other required fittings and to dispense
with the top frame substantially as herein before described.
10. The construction of the side frames of the Jacquard machine with projecting.
ledges supporting the punched or otherwise perforated bottom plate with its rails
or rods or corrugations, substantially as herein before described.
11. The rebated projections supporting the back plate independently of the
needle plate, substantially as hereinbefore described.
12. The combination with interchangeable frogs of batten slides having one end
raised and the other lowered, substantially as herein before described.
13. The combination with straight batten slides of frogs, formed with two
thickened parts or lugs or holes so that they are interchangeable for either cylinder,.
substantially as hereinbefore described.
14. The slide or slide end with frog or frogs cast thereto substantially as
hereinbefore described.
15. Arranging and constructing the slide with loose or fast frog, or loose and
fast frogs, the said slide working through bearings or brackets cast or fixed to the
side of the machine in such a way that the slides and frogs or either may be.
interchangeable substantially as herein before described.
16. The automatic change motion for cross borders constructed and operating
substantially as bereinbefore described.
17. The construction of apparatus by which the cards may be kept in their
consecutive order and may be reversed by positive gearing in double cylinder
machines substantially as hereinbefore described.
18. The method of actuating the cylinders from the griff rod in double lift.
machines substantially as herein before described.
19. The combination of 'levers and arms for reversing the cards. by pulling over
one cylinder and pushing over the other substantially us hereinbefore described.
20. The addition of secondary.lever or levers for steadier working and to reduce
the amount of power required for lifting the griff or griffs, substantially as.
hereinbefore described.
Dated this 23rd day of December 1808.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.