US1084894A - Threading of loom and like shuttles. - Google Patents

Description

H. A. MURPHY & J. P. SIMPSON.

THREADING 0P LOOM AND LIKE SHUTTLES.

APPLICATION FILED D110. 27, 1911.

1,084,894. Patented Jan. 20, 1914.

WITNESSES, lNVENTD R55 HARRY ALBERT MURPHY AND JOSEPH FITZALAN SIMPSON,

OF PRESTON, ENGLAND.

THREAIDING OF LOOM AND LIKE SHUTTLES.

Specification of Letters Patent.

Patented Jan. 20, 1914.

Application filed December 27, 1911. Serial No. 668,123.

To all whom it may concern:

Be it known that we, HARRY ALBERT MUR- PHY and Josnrr-r FITZALAN SIMPSON, subjects of the King of England, residing at Fulwood, Preston, in the county of Lair caster, England, have invented certain new and useful Improvements in Connection with the Threading of Loom and like Shuttles, of which the following is a specification.

This invention has reference to the threading of loom and like shuttles, that is to say, the passing of the thread or weft of a cop or bobbin within the shuttle, to the outside of the shuttle, through the hole, through which such thread or weft passes when the shuttle is in use; and it has reference more particularly to shuttles which are used in connection with artificial means of threading shuttles, in contra-distinction to threadin them by the operative putting the shuttie to the mouth, the mouth being over the hole, and drawing in the breath; whereas in the artificial means of effecting this purpose the draft through the hole by which the thread or weft is carried through it, is created by a partial vacuum or suction in a system or device in connection with which the shuttle is placed in the act of threading.

According to this invention the shuttle is so constructed or formed that suction or indraft of air through the hole, of su'tiicient intensity to carry the thread or weft through it, cannot be made by the mouth, by drawing in the breath; and the contact part (which say is of rubber or equivalent material for the purpose in question) of the means by which the draft of air is artificially effected, is so made as to make a closure or join around the thread hole, when the shuttle is placed in contact with it, or pressed against it, so insuring the proper threading action being effected. To prevent the threading of the shuttle being effected by the mouth of the operative as described, the shuttle, at the outer part where the mouth is usually applied over the threading hole, is made of irregular formation, such as by providing it with a grooving or grooves, or projecting parts, or the like, which will admit air to the mouth, if the breath is drawn in, from other directions than by the threading hole or tube, so that the required minus pressure about the threading hole mouth or outer end, cannot be created in this way. The formation of the shuttle at this part,

may be of alternate grooved and projecting formation or parts, either longitudinally or transversely; or projecting parts, or equivalent formations whereby the lips cannot form a closure or seal around the threading hole, either alone or with the assistance of the fingers. But these forms will not be of such a nature as to form any hindrance to the throw of the shuttle through the shed, or its action generally otherwise. Whatever form the shuttle may have about this part, the connecting mouth or partof the artificial exhausting appliance or means will be correspondingly shaped, or so formed or constructed that a closure around the threading hole, 27. 6. between it and the shuttle, will be effected. A further preventive or protection against threading the shuttles by the mouth being possible, an additional hole is provided between the groove or recess in which the loose thread is laid prior to and preparatory for threading, and the outer end of the threading hole or eye through which the thread is passed, whereby, in any event, if the mouth is used, as stated, the thread will pass through this additional hole, instead of through the proper threading hole or way, as it is the most direct and easiest course. By this manner of constructing shuttles, and arranging and forming the connecting or coupling means of the artificial exhausting appliance, the dangerous, insanitary and objectionable method of thread ing shuttles by the mouth is not only enabled to be avoided, but is positively prevented.

The drawing hereto annexed gives one illustration of a shuttle, constructed and adapted to operate according to this invention, as well as the form of the mouth of an exhausting appliance which will be used in connection with a shuttle having the formation shown.

In the drawing, Figure 1 is a side elevation of the shuttle; Fig. 2 is a plan partly in section; and Fig. 3 is a cross section through the threading pot eyes or holes; and the mouth part of the artificial exhausting appliance, of which Fig. t is a plan.

In the construction of shuttle shown, the means or irregular formation at the outer part of the shuttle where the mouth is usually applied over the threading hole, consists of a relatively deep groove a, formed in the body 6 of the shuttle, and extending in the direction of its length, the shuttle body itself being of the usual or common form. The groove a, as will be seen, is narrow and deep, and such that it is either impossible to prevent air getting in between the bottom of the groove and the lips, if it be applied to the lips, and an attempt is made to thread the shuttle by drawing in the breath; or it is such that this can only be done with such relatively great difficulty and trouble, that would, in practice, act as a preventive to the operators using or adopting their old and usual method of threading the shuttle, instead of using the mechanical exhaust appliance. This form of groove a, for the purpose of preventing the mouth being used for the act of threading is advantageous, in that it constitutes no hindrance to the throw of the shuttle through the shed, or its action generally otherwise; while at the same time, it is very simply and cheaply provided in the shuttle, and is one, which when used with a mechanical exhaust appliance, where the shuttle is adapted to slide horizontally on a surface, in the act of threading, lends itself to the action, and general convenience of the operator. The

pot eyes or threading holes 0, through which the thread passes from the interior to the exterior of the shuttle, are disposed substantially at right angles to each other, one communicating with the bottom of the groove (1, as shown; and the other with the recess d in the top of the shuttle.

On the head of the mechanical exhaust appliance, which may be of any known suitable kind, there is provided an india rubber or flexible mouth-piece 6, having a hole 9 through it, which leads to the exhausting apparatus, or the conduit in which an ex haust is created or maintained; and along and across the face of this mouth part 0, there is a projecting lip f; and this project ing lip corresponds in form and size, substantially, with the groove a of the shuttle; so that when the shuttle is placed against the exhausting device mouth e, itthe lip fwill project into the groove a, and practically fillit on each side of the hole 9 and the exit of the eye 0; while the curved side surface of the shuttle body I) will lie against or in contact with the rubber or soft material 6 above and below the lip f; these portions of the mouth part 0, being made to correspond with the form generally of the side of the shuttle.

When the loose portion of the thread or weft is placed, as usual, over the entrance pot eye 0 in the bottom of the recess (Z, and

so the shuttle is brought into contact and placed on the mouth 6 of the exhaust mechanical appliance, and the exhaust is applied, pot eye 0, communicating with the groove a, will be in a practically closed communication with the hole 9 of the exhausting appliance,

and the groove a, in which the loose thread 7 is placed prior to the threading action; this hole is shown in the drawing and marked 0. It extends, as shown, in a straight line from the lower part of the groove (Z, to the upper surface or roof of the groove (1, just over the outlet end of the threading hole or eye 0. The hole in the case shown is comparatively shallow and wide.

When the lip f of the mechanical means or mouth appliance e is within the groove a, it fills this groove, and besides a direct connection being made by it, between the threading eye or hole 0 and the bore 9 of the mouth piece 6, it closes the end of the hole 0, and so, when the exhaust action takes place, all the air has to pass by way of the proper threading hole or eye a, carrying with it the thread; none being able to pass through the hole 0 as the proper threading hole or eye is the only avenue through which air can be drawn.

In shuttles of the kind referred to, there is. generally a longitudinal groove along the side of it, at which the thread passes out of it; and this groove, in the case shown, is marked 2', and it is generally, as in the case shown, shallow, and usually extends from a point in front of the eye, to a point a long way to the rear of it; but the groove a, or any groove or similar or equivalent formation, employed for accomplishing the object or purpose of this invention, is specially made, and of such dimensions, that the lips cannot be pressed into it, or so used as to prevent the entrance of air to the month by a way, other than that of the threading hole or pot eye. Moreover it should not be of such a width or form that the fingers can be inserted in, so as to close the groove on each side of the operators months or lips, should they attempt to thread by that means.

The shuttle shown is of the type which is usually threaded by surrounding the threading pot hole with the lips, and drawing in the breath; but the feature of construction of or in connection with the shuttle covered hereunder, may be also applied in some shuttles where mechanical means are provided by which the threading is adapted to be effected mechanically, but which nevertheless are capable of being threaded by put- 7 ting the shuttle to the mouth, and surrounding the parts through which the thread passes, and drawing in the breath.

What is claimed is 1. A loom shuttle adapted to be threaded by a mechanical air exhausting means having a recess to receive the thread to be threaded; a threading eye proper; a comparatively deep longitudinal groove communicating with the threading eye; and a hole communicating directly between the groove and the part of the shuttle at which the threading eye entrance is disposed; the junction between the hole and groove occurring in one of the walls of the groove; substantially as set forth.

2. A 100m shuttle adapted to be threaded by mechanical air exhausting means, having a longitudinal groove in a side of same adapted to receive the part of the air exhausting means through which air is exhausted; a threading eye having its entrance at another side or part of the shuttle, and communicating with the interior of said groove; and a hole also communicating with the interior of the groove, and with the part of the shuttle near the entrance of the threading eye; and adapted to be closed by said part of the air exhausting means, which is received by the said groove; substantially as set forth.

3. A loom shuttle adapted to be threaded by mechanical air exhausting means, havin at one side a deep groove a; a recess as disposed at another side or art of the shuttle, and in a plane at rig t angles to the .plane in which said groove lies; a threading eye as 0, having its entrance at the recess (Z, and its discharge in the bottom of the groove a; and a hole extending be tween the recess at near the entrance of the threading eye 0, and the groove a near the discharge or outlet aperture 01 hole of the threading eye and the inner part of the said groove a; substantially as set forth.

In testimony whereof we have signed our names to this specification in presence of two subscribing witnesses.

HARRY ALBERT MURPHY. JOSEPH FITZALAN SIMPSON.

Witnesses SOMERVILLE Goomnn, FRANK E. FLnn'rWooD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentl, Washington, D. G.

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