Improvements in Loom Pickers and Picker Staves.
Year: 1894

page_text: Date of Application, 12th Nov., 1894-Accepted, 15th Dec., 1894
COMPLETE SPECIFICATION.
Improvements in Loom Pickers and Picker Staves.
I JOAQUIN RUBIROLA, commonly styled Rubirola y Pou of 6 Calle Avella,
Barcelona in the Kingdom of Spain, Watchmaker, 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 :-
The
This invention refers to improvements in pickers and in picker staves.
improvements in pickers extend to vertical or horizontal pickers operated by straps
or staves and embraces the arrangement of the pieces which sustain the friction of
the spindle in vertical and horizontal picks and application to the same of springs or
elastic material to deaden the transmission of the blow of the shuttle between the
picker and the spindle; the arrangement of the pieces which sustain the shock of
the shuttle and the friction of the lower guide in vertical and horizontal pickers;
the arrangement of the pieces which sustain the friction of the picker staff; the
arrangement of the pieces which sustain the blow of the shuttle and friction of the
lower guide in the staff operated pickers; the arrangement of the pieces which
sustain the lateral friction of the shuttle carrier; the arrangement of the metal
frame so that the pickers can be adapted to the guides.
The improvements in the picker staves embrace the shape and arrangement
of the picker stick or staff and of the picker for connecting them directly without
intervention of a picker drawer.
The accompanying drawings will illustrate the mode in which these improve-
ments are to be performed,
Fig. 1 being a side view of the vertical picker with symmetrical frame.
Fig. 2 end view of same.
Fig. 3, section at line Z-Z of Fig. 1 and 2.
Fig. 4, section of a picker analogous to that of Fig. 3.
Fig. 5, section of the piece E³
Fig. 6, side view of a symmetrical horizontal picker with groove and lower
side guide.
.
Fig. 7 end view of part of same.
Fig. 8 side view of another symmetrical horizontal picker for two spindles.
Fig. 9, side view of a picker analogous to the above with the lug B¹ and the
affixture J for receiving the picker driver.
Fig. 10 end view of same.
Fig. 11, cross section of same, where the frame is cross sectioned in a direction
different to the inserted pieces to distinguish between them.
Fig. 12, elevation and section of a horizontal picker analogous to Fig. 9 with
orifices in the centre of the frame.
Fig. 13, section through the line X, X, Fig. 12.
Fig. 14, plan view from below of the picker, Fig. 12.
Fig. 15, end view of a horizontal picker analogous to Fig. 8.
Fig. 16, half side view of picker with staff passage.
Fig. 17, half side view of the other half of this picker somewhat modified.
Fig. 18, half longitudinal section of picker with a modified staff passage.
Fig. 19, plan view of other half of picker with modified staff passage.
Fig. 20, transverse section through the line y y Fig. 19.
Fig. 21, transverse section through the line y, y, Fig. 18.
Fig. 22, end view of such staff operated picker.
Fig. 23, side view partly in section of half picker for staff passage made

page_text: spindle passes the openings D₁ the pieces A cannot fall. In Fig. 42 is shown one
piece A at each extremity of the picker, but two or more can be so placed. This
arrangement is applicable to all forms of vertical and horizontal pickers.
The pieces A can be made of leather wood or metal or of any convenient
material. When of leather or analog s material the pieces moderate the effect
of the blow of the shuttle and the re-action of the spindle avoiding the breakage
of the frame. When the pieces are of metal or other non elastic material, to give
elasticity an intervening cushion or spring can be placed between the pieces A and
the frame, thus in Figs. and 2 is shown a plate of rubber S at the upper part of
one side and another plate S¹ on the lower part of the opposite side. In Fig. 42 on
the left and in Fig. 43 is shown a spring S2 and in Fig. 42 at the right and Fig. 44
is shown a metallic piece A covered with a plate of leather or rubber S³ ; each of
these arrangements are applicable to pickers in general.
In Figs. 1, 2 and 5 is shown an arrangement adapted to the pieces which sustain
the shock of the shuttle and the friction of the lower guide, of rectangular section
and introduced into the frame B so that they project below the frame and show a
narrower part which penetrates the guide of the shuttle carrier; with this form of
frame the guide cannot be brought in contact with the frame of the picker.
In Fig. 1 is shown four pieces viz. E and E' occupying the interior, and E2 and Es
the exterior and these first receive the blow of the shuttle. They can be reduced
to one in each carrier when there are no lugs B³. The exterior pieces can be
made as represented in Fig. 5 with a recess E for better operating the shuttle.
The frame, Fig. 42, has a central web B and a lug B³ at each side of the lower
part, these lugs B may be placed in the centre as indicated at B in dotted lines in
Fig. 33. or at the sides as in Fig. 42 at Bº, or they can form a cross web as shown
in the lower half of Fig. 11, which shows besides lugs B³.
The pieces E and E¹ have slots in which can be encased the lug B' and the
rim B and parts B³ preventing the pieces E2, E3 falling from the sides, these are
thus maintained in position and for greater security pieces E and E¹ can be fixed
with screws as shown in Figs. 1 and 2. This arrangement is applicable to all
vertical pickers. Instead of coupling the pieces E and E², one piece alone of
sufficient thickness can be used as shown in Fig. 35.
In horizontal pickers as in Figs. 6, 8, 9 and 12 the pieces E also have the
rebate F so that the guide passes by the extremity of the frame whereby it
sustains the friction of the wedge or spring of the shuttle carrier. These pieces E
are fixed as before indicated or with bolts G, Figs. 12 and 13.
In the staff driven pickers, pieces are placed which sustain the friction of the
staff. Figs. 16, 18 and 21 show in half view, pickers, their arrangement consisting
of a layer of leather, metal or other appropriate material A adapted to the inner
walls of the cavities of the frame B projecting beyond the latter above and below
so as to guard them against exterior friction; they are maintained by adhesion or
with screws. Fig. 17 shows the same disposition, the piece A however projecting
from the frame below only.
Figs. 19 and 20, show another arrangement.
In the extremities of the hollow of
the picker is dovetailed a plate K' of leather or other appropriate material and the
pick carries on its exterior a plate K2 which is bent over the upper part and
projects into the interior of the cavity to sustain the friction of the staff and guard
the frame from exterior friction.
Figs. 23, 25 and 27 show other arrangements, the frame B forming in the upper
part a border B12 the interior piece A being bent over below.
Figs. 24 26 and 28 show another, arrangement where the interior piece A is bent
over above, guarding the frame inside and outside.
Figs. 17, 18, 19 and 22 show arrangement adapted for pieces which have to
sustain the blow of the shuttle and friction of the lower guide in staff driven
pickers.
The extremity of the frame B forms a box in which are placed three pieces E, E¹
and E, of which E remains within the frame and E and E¹ are prolonged to pass

page_text: the lower guide and project also at the upper part. The frame has at its extremity
lugs B³ which prevent the pieces E and E' from escaping.
The Figures 23, 24, 25 and 29 show modifications in which the frame is covered
above. Between Figs. 23 and 24 there is this difference, the former has three
pieces E and the latter has only two which can be reduced to one on giving it the
proper thickness.
Figs. 30 and 31 show a picker whose frame is formed of two halves B7 and B³
connected by screws H. In this picker the pieces A which sustain the friction of
the spindle have no entrance from the sides but they are inboxed in the hollow
interior. In the upper part of the frame are two ribs B10 for the picker driver.
The pieces E are arranged as before described.
To guard the frame from exterior friction, various arrangements are shown.
The picker in Figs. 1, 2 and 3 has a plate or layer K of leather or other appropriate
material applied externally to the frame on the side which has to sustain friction
secured with screws etc. or by bending over the extremities and placing them in the
inside; such arrangement can be applied to all vertical pickers. For horizontal
pickers the pieces E are prolonged so that they project from the extremity of the
frame as shown in Figs. 6, 8, 9 and 12. A modification is shown at E', Figs. 6
and 7 where the plate E' projects laterally from the frame.
The staff driven picker has applied laterally a plate K² as in Figs. 19 and 20,
also as shown in Fig. 21 an exterior plate K or as in Fig. 28 an interior plate A
bent to conform to the frame so as to guard it externally also, or this is effected as
shown in Fig. 45 by applying to each of the sides of the frame dovetailed
plates K.
The metallic frame has for the passage of the spindle oval or similar apertures
as at A³ to prevent the spindles from touching the frame. The web B2 or the
back of the box which receives the pieces E has an aperture B", Fig. 42, formed
at a point alligned with the axis of the shuttle, so that this is not injured
thereby nor the frame hurt in case that repeated blows of the shuttle bore through
the pieces E and permit it to touch the frame.
The improvements in picker sticks are shown in Figs. 50 and 51, the stick is
made of a metal arm P, P', which is fastened at one end to the usual loom
shaft C, the other end forming a branch P with a slot in the middle in which is
inserted a gudgeon J on the picker. In Fig. 51 the slot is shown straight, but
it may be made curved. Also the branch P of the picker stick may be formed as
a rod and the stick have a ring sliding ou the same.
Between the extremity P and P the picker stick is shaped according to the
height of the picker or the situation of the shaft C.
The branch P, Figs. 50 and 51 can be in one piece or two and articulated as
shown so that it can be adapted to all positions of the spindle. To this effect the
branch P terminates in a fork and receives the branch P hinged in it by the
bolt P2, the fork is spread out forming the sector P3 so that the branch P is partly
supported whatever its position.
In this arrangement the picker is guided by the spindle and driven by the
branch P of the stick. The slot can have it sides of metal without the addition
of changeable pieces as indicated in Fig. 53, or with changeable pieces L as in
Fig. 52.
To apply this picker stick to looms, pickers must be used which have a
gudgeon Jas in Figs. 10 and 37 or the usual pickers must be fitted with a gudgeon
as shown in Figs. 47, 48 and 49. The gudgeon is surrounded by a muff J' to
facilitate movement.
Figs. 38 and 40 show half of muff J¹ whose outer form is rectangular, and the
Figs. 39 and 41 show the other half of a muff' of circular section.
Figs. 47 and 49 show a gudgeon J applied to pickers having a single web B¹,
the gudgeon being fixed on a fork J straddling the web B and secured by
pins J.
The Fig. 48 shows the gudgeon J applied to pickers with two parallel webs B¹,

page_text: said gudgeon having a base penetrating between them and supported by flange J³
and fixed by pins J.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, declare that what I
claim is :-
The improvements in pickers and picker sticks for looms consisting in the
construction thereof as described herein with reference to the drawings hereto
annexed.
Dated this 12th day of November 1894
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand, W.C., London,
Agents to Applicant.