IMPROVEMENTS IN LOOMS
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by the said George Herbert Hodgson
at the Office of the Commissioners of Patents on the 10th May 1883.
GEORGE HERBERT HODGSON of Bradford in the County of York Machine
Maker IMPROVEMENTS IN LOOMS
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The object of this invention is firstly, to construct shedding machines in such a
manner, that the motion is positive, and the card cylinder capable of regulation
by hand whilst the loom is standing.
Secondly: To reduce the liability of sliding picking tappet motions breaking,
and arrange the same that the sliding tappets can be removed out of action when
desired, and
Thirdly To mount the reed in the "going part," so that the reed is loose whilst
the shuttle is crossing the piece, but fast during the time the weft is being
beat up.
I accomplish the first part of my invention by mounting a series of sliding rods
in suitable framework: these rods are connected to the healds, and receive the
desired reciprocating motion, by means of draw knives arranged to be acted upon
by either the upper or lower draw bars: the draw knives being brought into
contact with the said upper, or lower bars by levers in connection with the card
cylinder. This cylinder can be regulated whilst the loom is standing, by sliding
the shaft upon which it is mounted, which disengages a plate from the driving
"tup wheel" and liberates the card cylinder, thus allowing the cards to be changed
whilst the loom is at a stand.
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The second part of the invention is carried into effect by constructing the sliding
rod which actuates the sliding tappets in two parts, and jointing them together.
by a bracket having a pin secured thereto, which passes through a slot hole formed
in both parts of the rod. The ends of the slot holes near the ends of the two
portions of the rod are kept in contact with the before named pin, by means of a
spring, which allows either portion of the rod to slide should the picking tappets.

page_text: become deranged, and also allows both picking tappets to be removed out of action
by pressing a foot lever which is in connection with two scrolls, that are in contact
with studs secured to the sliding rod.
The third part of the invention is accomplished by securing brackets to the
underside of the "going part" beam, in each of which is mounted a lever having
an upright bar jointed thereto. To the front beam of the loom I secure brackets,
which come in contact with the first named brackets at the time the weft is being
beat up, raising the upright bars behind the reed, securing the same as rigid as is
the case with a fast reed: when the going part recedes, the upright bars releive
the reed which is mounted in the same manner as ordinary loose reeds, thereby
by my arrangement the reed is loose during one portion of each pick, and fast
whilst the weft is being beat up
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said George Herbert Hodgson in the Great Seal Patent Office on the
10th November 1883.
GEORGE HERBERT HODGSON of Bradford in the County of York, Machine
Maker, IMPROVEMENTS IN LOOMS.
The object of this invention is firstly, to construct shedding motions in such a
manner that the motion is positive and the card or lag cylinder capable of
regulation by hand whilst the loom is standing..
Secondly, To reduce the liability of sliding picking tappet motions breaking,
and arrange the same that the sliding tappets can be removed out of action when
required, and
:
Thirdly To mount the reed in the "going part" so that the reed is loose
whilst the shuttle is crossing the piece, but fast during the time the weft is being
beat up."
"
In order that my invention may be better understood, I have appended 2 sheets
of drawings marked with letters of reference, corresponding letters indicating the
same parts where they appear.
Figure 1 represents a side elevation of my improved shedding motion, with one
side of the apparatus removed in order to better illustrate the working parts.
Figure 2 is an end view of the same and Figure 3 is a modification of the
disengaging gear of the card or lag cylinder.
The frame plate is indicated by the letter A: the apparatus is fixed in the usual
position, and motion to the draw bar B and B communicated in the ordinary
manner. Each draw knife D is jointed to a sliding bar E at D¹, and also passes
through a slot formed in the projection E¹, and through the guide grate F which
is of the ordinary construction. Mounted on a bar extending from each side

page_text: frame plate .A, are a series of levers G, one end of which extends through the
guide grate. F, and the other which is the heaviest over the card or lag
cylinder C: the pegs C¹ raise the ends of the levers G over the cylinder, and
allow the corresponding draw knives D to lower and come in contact with the
bottom draw bar B¹ and be actuated thereby, those that are not raised being in
contact by the top draw bar B, thereby giving a sliding motion to the bars E which
are attached to the healds by cords passing over pullies and secured to the bottom
projection E².
Motion is transmitted from the crank shaft of loom to the card cylinder by
shaft H, at the top of which are bevel wheels H¹ and H2, to the latter of which is
secured a "tup" wheel H³ gearing with another "tup," wheel H* which is loose on
cylinder shaft C³.
"
The cylinders C and C2 are secured on shaft C³s by feather keys, so that the
shaft can be slided through the cylinders and "tup" wheel H; near to this wheel
is fixed a disc. D' which has a pin P in the face that fits into holes in the face.of
tup" wheel H, thereby turning the cylinders; but when the shaft C³ is slided.
such a distance that the end of the said pin P is clear of the "tup" wheel H, the
latter will rotate as before, but the cylinders and shaft will be stationary, thus the
loom can be turned either way without affecting the pattern of the piece, or the
cylinders turned as desired..
The stopping of the cylinders C and C³ can also be accomplished by my modified
arrangement shewn by Figure 3, in which the shaft H is driven as before
mentioned. The bevel wheel gears with the bevel wheels J and J all of
which are secured on the shafts. The wheels J and J¹ are arranged with catch
box couplings, with which gears the sliding catch box coupling J2; by sliding
this coupling by a lever in gear with one or other of the wheels J and J', the
cylinders C and C¹ revolve one way or the other, and by actuating the lever in
connection with the sliding catch box J2 until the latter is in the centre between
the bevel wheels in gear with neither, the cylinders will be at rest, thereby
enabling the same, or the loom, to be turned at will.
The second part of my invention for reducing the liability of breakages with
sliding tappet motions is illustrated by Figures 4 and 5, the former representing
the elevation of a sliding tappet and the ordinary connections with my improve-
ment, and the latter a plan of the sliding rod and scrolls for removing the tappets
out of action by means of a foot lever.
The sliding tappets K are of the ordinary construction and mounted on the
shaft in the usual manner, as are also the connections with the sliding rod. This
rod is made in two parts L and L, being coupled together by box L² to which is
attached a connecting rod L³, by which the ordinary reciprocating motion is
communicated.
To each portion of the sliding rod L and L' is secured a narrow box; M to the
rod L, and M¹ to the rod L', and in each rod is also cut a slot hole L*, the boxes M
and M₁ are connected together by spring S, by which the two portions of the rod
are so drawn that the ends of the slot holes clip the pin L³ passing through the
connecting rod and box L².
By making the sliding rod in two parts, and coupling them together in the
manner described, the spring S will allow either of the rods L or L¹ to yield, the
rod L in the direction of the arrow, or the rod L' in the opposite direction should
the picking tappets become deranged by anything getting between the tappet and
the disc K¹.
By pressing the foot lever N, the two scrolls O come in contact with studs N¹
and N2, by which the two portions of the rods L and L' are slided, thereby clearing
the tappets out of action.
The third part of the invention is illustrated by Figure 6, which represents
the cross section through what is commonly known as the going part of a loom..
To the underside of the "going part" I secure two or more brackets T' in each
of which is jointed at T' a lever U which projects beyond the face of the going

page_text: part, and extending backwards under the said beam is jointed to an upright bar U¹
which rises when actuated in the manner described and locks the reed.
To the breast beam of the loom I secure brackets T opposite to the levers U;
and when the weft is about to be "beat up" in the piece, the ends of these levers
at U³ come in contact with the brackets T, and are thereby depressed, thus causing
the upright bars U¹ to rise behind the lath V, and secure the reed R fast during
the "beat up" of the weft. On the retreat of the going part the upright bars U
will descend by their own gravity or by the aid of springs, thus leaving the reed
loose until the return of the levers U into contact with the said brackets T What
I claim as my invention is :-
First: The arrangement and combination of shedding motions, constructed
substantially in the manner described and as illustrated by the accompanying
drawings.
Second: The arrangement for disconnecting the motion to the card or lag
cylinders substantially in the manner described, and as illustrated by the
accompanying drawings.
Third: The coupling together of the sliding rods L and L' for the purpose
hereinbefore described.
Fourth: The arrangement and combination of the parts for securing the reed
during the "beat up" of the weft, and loose when required to be so, substantially
in the manner described, and as illustrated by the accompanying drawings.
In Witness whereof I the said George Herbert Hodgson have hereunto set
my hand and seal this ninth day of November in the year of Our Lord; one
thousand eight hundred and eighty three.
GEO. H. HODGSON. (L.S.)