US1563304A - Loom - Google Patents

Description

Nov. 24, 1925. 1,563,304

G. B. AMBLER LOOM Filed July 10. 1922.

17006 F1503.- 6007:9015. djlmbZeP,

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Patented Nov. 24, 1925.

" UNITED STATES GEORGE E. AMBLER, 0F LEOMINSTER, MASSACHUSETTS, ASSIGNOR T0 F. A. WHITNEY CARRIAGE COMPANY, OF LEOMINSTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

PATENT QFFIQE,

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Application filed July 10, 1922. Serial No. 574,029.

To all 207mm it may concern:

'Be it known that I, GEORGE B. Anemia, a citizen of the United States, and a resident of Leominster, county of Worcester, and State of liIassachusetts, have invented an Improven'ient in Looms, of which the following description, in connection with the accon'ipanying drawings, is a specification, like characters on the drawings representing like parts.

This invent-ion relates to looms and more particularly to that type of loom wherein the supply of weft or filling strand is not carried as such through the shed but lengths of the same are drawn into the shed on successive picks. An example of sucha loo-m is the so-called needle loom in which a reciprocating member or needle reaches into the shed and in one phase of its movement draws the filling strand with it.

For convenience I have here illustrated as an example of my invention certain portions of a so-called single needle loom in which the needle reaches completely. through the shed and draws in the filling strand from a supply on the further side.

' My invention will best be understood by reference to the following description taken in connection with the accompanying drawings, wherein:

Fig. 1 is a broken view showing in elevation such parts of a single needle loom as are necessary for an understanding of my invention; and

Fig. 2 is a section on the line 22 of Fig. 1 on an enlarged scale.

Referring to the drawings I have shown in Fig. 1 certain portions of a single needle loom embodying a needle 5 adapted to be reciprocated by any suitable mechanism so that its inner end carrying the jaws 7 will reach through the shed from one side frame 9 of the loom to the vicinity of the opposite side frame 11 to seize the filling strand held by the holder 18 and on its retracting movement to draw a length of this strand in through the shed. The needle should move definitely in a fixed line through the shed and the jaws 7 must be presented accurately to the holder 13 to selze the filling. As will be readily seen from Fig. 1, it is supported adjacent its outer end. The unsupported end of the needle thrust out through the shed is likely to vibrate, particularly since it is driven with a reciprocating motion. In accordance with my present invention, therefore, I provide for further supporting the needle between the sides of the loom during the pick and preferably in such a way as to maintain the axial line thereof. I thus obviate the difficulty of attempting to support solely by its outer end the long and heavy needle which is required if a wide fabric is to be woven and do away with the bending strains which would in that case tend to affect the accuracy of its movement and which would place an undue strain on the supporting and operating means exterior to the side frame 9.

The example of the invention illustrated is a loom for weaving a comparatively heavy fabric .such as wicker and in this instance I utilize the dents which beat up the filling as means for guiding and supporting the needle in its movement. In the present instance (see Fig. 2) a rock shaft 15 is provided beneath the plane of weave in which are mounted the arms 1.? constituting dents which project up between the warps. In .Fig. .2 the full lines show the dent in its retracted position and the dotted lines show it moved to beat up the filling after the pick is completed. Some or all of the dents may be utilized to support the needle and by. the. expression.certainof the dents I mean to include as a special case the use of all of them. In the example shown only some ofthe dents are utilized and these, as

illustrated in Fig. 1, may be made some what heavier than the rest if desired as is permitted by the comparatively coarse nature of the fabric.

Referring to Fig. 2, when the dent is in its retracted or full line position it presents a surface on which the needle 5 is adapted to rest in its reciprocating movement through the shed and herein I have shown the ends of the arms or dents 17 as hooked, providing a partly annular portion 19 at the throat of the hook which partially embraces the needle 5 so as not only to underride it and support it but to guide it definitely in a fixed line so that it will move accurately through the parted warps of the shed and be presented accurately to the end of the filling held by the holder 13. To facilitate the movement of the needle anti-f i tion means such as the rollers 21 may be provided so that the needle will enter easily the throats of the hooks and will not be impeded in its reciprocating movement.

I have now described in detail the particit lar form of my invention which I have illustrated as an example thereof in the accompanying drawings. It will be understood, however, that the details of construction and in particular the means for insuring the accurate movement of the filling laying means across the shed may be widely varied without departing); from the spirit of my invention. ll hat I regard as my invention and desire to secure by Letters Patent 1 shall express more fully in the following claims.

1. In a loom in combination with a substantially rigid needle supported at one end and which is protracted through the shed to lay the filling, means between the loom sides and between the selvages of the work to support the protracted needle and check vibration thereof.

2. In a loom in combination with a substantially rigid needle supported at one end and which is protracted through the shed in a fixed plane between the front and back of the loom to lay the filling, means between the 100111 sides and between the selvages of the work to support the protracted needle and check vibration thereof.

3. In a loom in combination with a reciprocating needle which is protracted in a fixed plane between the front and back of the loom through the shed to lay the filling, reed dents for beating up the filling 'and presenting in their retracted position supporting surfaces for the needle.

i. In a. loom in combination with a reciprocating needle which is protracted through the shed to lay the filling, a rock shaft having arms projecting between the warps and constituting dents to beat up the filling, certain of the arms presenting, during the pick, surfaces to underride and support the needle.

5. In a loom in combination with a substantially rigid needle supported at one end and which is protracted through the shed, reed dents for beating up the filling, certain thereof presenting supporting surfaces to engage the needle in its protracted position and check vibration thereof.

6. In a loom in combination with a reciprocating needle which is protracted through the shed to lay the filling, reed dents for beating up the filling presenting in their retracted position partly annular portions to receive the needle in its movement. and .maintain the same in a iizied path.

7. in a loom in c mbination with a reciprocating needle which is protracted through the shed to lay the filling, a rock shaft having arms projecting between the warps and constituting); dents to beat up the filling, .5; id arms having hooks in the throats of which the needle is received and gnidet during the pick.

8. n a loom in combination with a recipro -at .;ia' ne idle which is protracted through the shed to the filling, reed dents for beating up tne filling having; portions formed at least partly to embrace the needle and proriced with amti-friction means, said portions in the retracted position of the dents bei. presented to receive the needle and n'iaintain the same in a fixed path.

9. in a loom in combination with a subially rigid needle supported at one end and which is protracted through the shed to lay the filling, an element between the loom sides movable to a position to engage the distal portion of the needlp in its protracted position to check vibration thereof,

10. In a loom in combination with a snbstantially rigid needle supported at one end and which is protracted through the shed. in a fixed plane between the front and back of the loom to lay the filling, an element between the loom sides movable to a position to engage the distal portion of the needle in its protracted position to check vibration thereof.

In testimony whereof, I have signed my name to this specification.

GEORGE B. AMBLER.

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