Improvements in
Year: 1894

page_text: Improvements in
I, JOAQUIN RUBIROLA commonly styled Rubirola y Pon 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 :-
This invention relates to loom pickers and consists in certain improvements
having for their object the better construction of such pickers of a metal framing
having chambers to receive removable fillings wherever the picker is exposed to
impact or friction, the said fillings being usually of leather, caoutchouc, or wood
though if desired they also may be of metal.
The improved pickers are illustrated in the annexed drawings in which the same
reference letters are used to denote the same or similar parts.
The picker shown in elevation in Fig. 1, in vertical section in Fig. 2 and in
horizontal section in Fig. 3 is a metallic frame having the same general external
shape as the leather pickers usually employed so that it can move in the same
guides, produce the same effect and generally take the place of the picker in
existing looms. It is also symmetrical in shape so that it can be reversed or
changed end for end. Through the head of the picker is a passage way I extending
from end to end for the housing of the spindle on which the picker moves, but said
passage way is of larger diameter than the spindle and it is furthermore broadened
at each end to form chambers A and B respectively. These chambers which are
intended to receive fillings ceutrally perforated to nicely fit upon the spindle, are
open at the sides for insertion of said fillings. The chambers aforesaid are so made
that each filling which is made in two pieces meeting on a plane transverse to the
axis of the spindle can be inserted, the one piece from the one side and the other
piece from the other side. Such fillings D are shown for the chamber A in
Fig. 12 in elevation and Fig. 13 in section, D' being the passage way for the
spindle; similar fillings D' for chamber B are shown in Fig. 10 in elevation and
Fig. 11 in section. It is immaterial whether the chambers A and B have the
general rectangular cross sectional form illustrated for chamber A, or whether
they have the dovetail form illustrated for chamber B, provided they are of
a shape fitted to receive the two parts of the filling from the sides and prevent
them falling out at the ends of the picker or towards the orifice J in the centre.
Abutments are provided for the two halves of each filling in the form of
flanges, bars or the like A' A'B' B', one for each in the manner shown in Fig. 3.
The spindle when passed through the fillings locks the latter in place and has
rubbing contact with the fillings only; lateral deviation.in either direction being

page_text: prevented by the corresponding abutments A¹ B¹ on the one side or A'B' on the
other.
In the lower part of the picker are two chambers C C separated from each other
by the web C. These chambers are open below and to each end of the picker
respectively, while the walls are so made, for instance as shown in the horizontal
section Fig..4..on line X X Fig. 2, that the fillings slid into the chambers CC
from below cannot fall out to either end. It is preferable to slope the upper inner
faces of the chambers C C or otherwise undercut or recess them as shown in
Fig. 2.
The fillings to be inserted in these chambers C C to receive the impact with the
shuttle are shaped as shown in elevation in Fig. 6 and section in Fig. 7, or as shown
in elevation in Fig. 8 and section in Fig. 9. The fillings consist of body E to fit
accurately within chamber C and a depending tail piece. E' extending backwards
so that the face E' of the one tail piece may meet and abut against the face of the
other tail piece of the filling in the other chamber C, beneath the web C¹. The
filling shown in Figs. 8 and 9 differs from that shown in Figs. 6 and 7 in
the possession of a projecting impact face E'. Fig. 5 is an end elevation of the
filling shown in Fig. 6.
Fig. 14 is a side elevation and Fig. 15 an end elevation of a picker frame of the
nature above-described and differing only in the provision of a lateral slot F for
the guiding of the picker on lateral guides when such are provided. Fig. 16 is a
side elevation and Fig. 17 an end elevation of the filling piece to be inserted in the
chambers of the picker frame shown in Figs. 14 and 15. This filling has the
slot F¹ to coincide with slot F and it has also another lateral slot H in the tail
piece E¹ for the housing of a second lateral guide where such is provided. In other/
essential respects this filling corresponds with that before described.
The picker frame can be made of malleable iron or of bronze or of any othe
suitable metal or alloy, especially of aluminium. The fillings can be made
metal sufficiently hard and elastic to support the work for which they are destin
or they can be made of leather wood or caoutchouc. The metal frame is ry
durable and does not easily deteriorate while the parts which are worn by fri sion
or impact are small, easily replaced and of little cost.
Having now particularly described and ascertained the nature of this sai inven-
tion and in what manner the same is to be performed I declare that what I
claim is ;-
A loom picker consisting of a metal frame made with chambers 7. B. C to
receive and hold removable fillings of metal caoutchouc wood leathe or other
material to sustain the friction and impact to which the picker is exposed said
fillings being adapted to be inserted and held in. place in the manner herein
described and substantially as illustrated in the drawings hereto annexed.
Dated this 5th day of November 1894.
HERBERT HADDAN & Co.,
18, Buckingham Street, London, W.C., Agents to Applicant.