Improvements in Shuttles for Looms.
Year: 1897

page_text: Date of Application, 30th Nov., 1897 --Accepted, 1st Jan., 1898
COMPLETE SPECIFICATION.
Improvements in Shuttles for Looms.
We, WILSON BROTHERS BOBBIN COMPANY LIMITED, of Cornholme Mills, Tod-
norden, in the County of York, Bobbin and Shuttle Manufacturers, do hereby
declare the nature of this Invention which has been communicated to us by Alfred
Isherwood, of 129 Austin Street, New Bedford, in the County of Bristol, and
State of Massachusetts, United States of America, Inventor, 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 loom shuttles.
The principal objects of the Invention are to obviate the necessity of employing
the usual transverse pin for pivotally supporting within the shuttle body the
spindle or shuttle peg, which pin when the shuttle body becomes worn by use,
cuts and destroys the reed, and to substitute therefor a cheaply constructed and
easily applied device that is contained wholly within the shuttle body, cannot
under any circumstances become exposed to destroy the reed, which is capable of
adjustment so as to fit snugly within its seat and of being held by the usually
employed spring holding or retaining bolt, and which will securely pivot the
spindle in such manner so as to absolutely prevent any looseness or side play of
the latter.
Referring to the Drawing-
Fig. 1 is a plan view of a loom shuttle constructed in accordance with this In-
vention, the cop being shown in position upon the spindle within the shuttle
body.
Fig. 2 is a central longitudinal sectional view of the loom shuttle the cop
removed.
Fig. 3 is a transverse sectional view of the loom-shuttle body, the cop, spindle
and its supporting devices being removed.
Fig. 4 is a longitudinal sectional view of one end of a loom-shuttle, the same
embodying this Invention, and being adapted for a pirn bobbin, and therefore
being provided with a bobbin catch.
Fig. 5 is a perspective view of the mechanism employed for securing the spindle
in position within the shuttle-body, namely, the spring, bolt, yoke, washer and
nut, these parts being shown assembled in their proper relative positions.
Fig. 6 is a detail in plan of the spindle supporting yoke.
Like numerals of reference indicate similar parts throughout the several views.
The shuttle body 1, has the usual external appearance and formation, and at one
end of its cop space 2, is provided with a cavity 3 which communicates therewith
and is gradually decreased in depth toward the outer or opposite end.
At the longitudinal middle of the shuttle-body, the opposite walls, together with
the intersecting bottom of the cavity 3, are provided with a groove 4 that portion

page_text: thereof in the bottom forming a continuation of those in the sides. This continuous
groove in cross section, is, in the present instance, slightly more than half round,
it being, as will hereinafter appear, designed to receive the spindle supporting
yoke 5.
The underside of the shuttle-body at about midway of the cavity 3 is provided
with a cavity and the same communicates with the cavity 3 by a bolt hole extend-
ing through the upper end of the cavity and the bottom of the cavity 3.
"
The yoke 5 which as before stated is intended for pivotally supporting the
spindle is made preferably of round iron or steel wire and somewhat resembles
the numeral 6," see Fig. 6, in that it includes the two opposite side bars the
end bar 9, the intermediate bar 10, and beyond the same the extended loop 11
between which and the intermediate bar 10 a space occurs. It will be obvious
that the yoke may be expanded laterally so as to cause it to fit snugly within the
groove into which it is slid endwise the loop 11 of the yoke being to the rear
and surrounding the bolt hole. The head 12 of the spindle 13 is given the usual
formation, that is, is provided with the hook 14 for pivotally engaging with the
cross bar 9 of the yoke in the same manner as with an ordinary transverse pin.
The slightly bowed spring 15 serves its usual function and occupies its usual
position in the upper end of the cavity 3. This spring may be perforated to
receive the ordinary bolt, or, as herein shown, it can be provided upon its underside
with a pair of parallel and horizontally disposed lips 16 which prevent the necessity
of perforating and weakening the spring and between which and the said spring
the head of the bolt 17 is interposed, the body of the bolt being embraced by the
lips. The bolt passes down through and is embraced by the loop 11 of the yoke
which is adjusted to fit the same whereby the yoke is prevented from withdrawal
or any longitudinal movement whatever and afterwards passes down through the
bolt opening and into the cavity 6 in the underside of the shuttle-body where it
terminates. A washer 18 is applied to the bolt at this point the underside of the
washer being provided with corrugations, and its upper side with one or more
ribs or spurs 19 the latter being forced into the fibre of the wood of which the
shuttle-body is composed by means of a nut 20 the upper side of which is provided
with ribs 21 which engage with the groove in the under side of the washer so that
the spring drawing the bolt and nut upward facilitates such interlocking of the
parts and the bolt being incapable of turning as well as the washer it will be
seen that no amount of jarring can loosen the nut. In addition to forming a part
of the nut lock the spring performs the additional though usual function of
retaining the spindle either in its lowered or raised positions.
In shuttles where it is desired to employ a pirn bobbin and it is therefore neces-
sary to employ a bobbin catch the washer is omitted and as shown in Fig. 4 the
rear end of the hobbin catch is shaped to form a crimped head with which the ribs
on the upper side of the nut interlock. In said Figure, 22 represents the bobbin
catch and 23 the crimped head that takes the place of the washer 18 as described,
the remainder of the parts being the same.
Having now particularly described and ascertained the nature of this said
Invention and in what manner the same is to be performed, we declare that what
we claim is:
1. The combination with the body of a loom shuttle having a cavity at one end,
of the yoke 5, a spindle or shuttle peg pivotally engaging the front cross bar of
the yoke, a spring bearing on the head of the spindle, and means for maintaining
the spring under tension and retaining the yoke in position substantially as herein
set forth.
2. In combination, the shuttle body 1, spindle 13, spring 15, yoke 5, and bolt 17,
all substantially as herein set forth."
3. The spindle or shuttle peg supporting yoke 5 constructed as and for the
purposes herein described and as illustrated by the accompanying Drawings.

page_text: 4. The general combination and arrangement of parts embodying the improve-
ments in loom shuttles substantially as herein described with reference to the
accompanying Drawings.
Dated this 29th day of November 1897.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicants.