US470590A

US470590A - northrop

Info

Publication number: US470590A
Authority: US
Publication date: 1892-03-08
Anticipated expiration: 1909-03-08

Description

(No Model.) 2 Sheets-Sheet 1.

J. H. NORTHROP.

LOOM.

Patented Mar. 8, 1892.

Modem 2 Sheets-Sheet 2,

J. H. NORTHROP.

LOOM.

No. 470,590. Patented Mar. 8, 1892.

wdme ea A To all whom it may concern.-

" UNITED STATES PATENT OFFICE.

JAMES H. NORTI-IROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEORGE DRAPER & SONS, OF SAME PLACE.

LOOM.

SFECIFICATION forming part of Letters Patent No. 470,590, dated March 8, 1892.

Applicationfiled July 28l1891- Serial No. 400,995; (No model.)

Be it known thatI, J AMEs'H. Noa'rnnor, a subject of the Queen of Great Britain, residingat I-Iopedale, county of lVorcester, State of Massachusetts, have invented an Improve ment in Looms, of which the following. description, in connection with the accompany ing drawings, is a specification, like letters and figures on the drawings representing like arts. p United States Letters Patent No. 454,810,

granted to me June 23, 1891, show and describe a loom containing a pusher or device which acts automatically to put a bobbin into a shuttle in the shuttle-box on the lay. The pusher referred to has mounted upon it a 1 trip, which is under the control of the weft feeler or fork, and which, on the failure or absence of the weft, puts the trip in the range of a bunter to thus actuate thdpusher.

In applying my improvements to different looms I have experienced difficulty, owing to differences inheight of breast-beamv and lay and in other parts and in bobbins and shuttles, to always give to the pusher just the proper length and period of stroke; but I have overcomethis difficulty successfully by making the trip in two parts, so that it may be adjusted to the requirements of the particular loom on which myimprovements are to be applied. I have also provided a yielding tip-support for 'the tip end of the endmost bobbin in the hopper, the bobbin next to be acted upon by the pusher. I have also provided the hopper with a slack-thread controller to prevent entanglement of the bobbin-threads carried in the hopper. 'I'have also provided the lay under the shuttle-box and between it and the bar back of which the picker-stick vibrates with a bobbin-deflector, against which the discharged bobbin in its descent from the shuttle strikes and by which it is made to con tinue its movement into the bobbin receptacle, the said deflector also obviating the wedging or catching of the bobbin in the slot in which the picker-stick works.

The improvements referred to will be hereinafter more fully described, and pointed out in the claims at'the end of this specification. Figure l in front elevation shows a sufiistrike the deflector. end view of the parts shown in Fig. 1. Fig. 5 is a section of the hopper below the dotted line m, Fig. 4. Figs. 6 to 9, inclusive, are de-.

cient portion of the breast-beam and lay of a loom with my improvements added to enable my present invention to be understood. Fig.

2 is a left-hand end view of the parts shown .in Fig. 1, Fig. 3, a section below the dotted :line at, Fig. 1, the dotted lines showing the outlines of a bobbin to illustrate how it will a Fig. 4 is a right-hand tails of the movable yielding tip-support detached; and Figs. 10 and 11 are respectively a sectional :detail and a partial plan of the hunter, the lay-beam, and the adjusting device for the bunter.

Referring to the drawings, the breast-beam mounted on the loom sides A, the hopper 13,

having its foot B erected on the breast-beam,

near one end, the lay A the picker-stick A its'actuating-strap A the weft feeler or fork A its slide barA ithe guide-box A fast on the breast-beam, the lever A the shaft (1', the pusher B having its fulcrum at B", the spring B the pin 0 at the lower end of the pusher, the bar D attached to the lay below the shuttlebox and behind which bar the picker-stick is vibrated, and the box or receptacle D, into which the spent bobbins drop, are and may,

be all as in my said patent, wherein like letters and figures are used to designate like parts. I

In this my present invention the trip (represented as pivoted on the stud O at the lower end of the pusher) is composed of two or more partsviz.,,a block 0t and a plate a, the plate being shown asmade adjustable on the block by means of a set-screw 2 and the plate being guided in its horizontal adj ustments by a guiding-stud 3 in a slot of the plate.

By adjusting the plate, which constitutes the front or acting end of the trip, upon the part a of the trip which is connected with the pusher the effective length of the trip may be regulated, so that the throw given to the front or acting end of the pusher may be regulated or timed to correspond with the particular loom upon which my improvements are added.

The rock-shaft 01 having attached to it a lever A common to the patent referred to, in this instance of my invention is also provided with an arm 4, (see Figs. 1 and 2,) joint ed to a link 5, in turn jointed to an arm d of the rock-shaft d, and at its opposite end the said rock-shaft is provided With an arm 6, (see Fig. 4,) which by a link 7 is attached to the block a, forming part of the trip, so that Whenever the weft-fork A fails to be tilted by the presence of the weft the downturned heel of the said weft-fork will be caught by the usual weft-hammer, common to the said patent and to most other looms, and the weft-fork slide A will be pushed backwardly and, acting up- ,on the lever A will positively turn the rockshaft d, and through the arm 6 and connection 7 lift the acting end of the trip and place it in the path of movement of an (1 so as to be struck by the bunter C The link 7 referred to is shown as composed of a piece of Wire, the upper end of which is turned substantially at right angles to enter a hole in the arm a, and in practice the end of the Wire will be slightly enlarged to prevent the end from being drawn out ofthe hole in the said arm, but yet permit the wire to turn freely in the arm, the connection between the wire link and arm being a loose one.

In practice the bunter, trip, and pusher herein to be described will operate in the same manner as the like parts-in the patent referred to, the chief difference being the adaptability of the parts herein shown to dif-- ferent looms, because of the adj ustability of the trip. It is not, however, intended to limit this invention to the exact construction shown for thetripor to the means employed to effect its adjustment.

In the drawings, Fig. 4, it is supposed that the loom is Working regularly and that the shuttle is being properly supplied, and in such event the trip remains down out of the range of movement of the bunter 0 or device which meets the free end of the trip to actuate the pusher.

It is of great advantage to have the bobbin about to be transferred from the hopper B into the shuttle in the shuttle-box (such a shuttle and shuttle-box as described and represented in the patent referred to) supported at its tip end, and to do this I have combined with the hopper a tip-rest b, (it being shown best in Figs. 6, 8, and 9,) the said tip-rest consisting, essentially, of a sort of lip or socket having an arm attached to a rock-shaft I), mounted in a block b attached to a rod b secured to the foot or stand B upon which is erected the hopper B.

The rock-shaft b has co-operating with it a spring 19 (shown in Fig. 6, where the block b is represented as in-section,) one end of the said spring being connected with a part of the block and its other end with a tubular nut b secured bya pin b or otherwise to the rock-shaft b, the said spring normally keeping the tip-rest elevated, but letting the tiprest descend when the pusher contacts with the endmost bobbin of the series of bobbins held in the hopper, Fig. 5 showing by dotted lines a series of three bobbins, (marked 0,) the tip of the endmost bobbin resting upon the tip-rest. By removing the pinb the tubular nut b may be rotated more or less to more or less coil the spring'bfi and thus adjust its effective strengthas may be desired.

Herein, as provided for in the patent referred to, the free ends of the weft or filling on the bobbins 0 will be attached to a stud 0, connected with the hopper, and to prevent the entanglement of the said weft-threads extending from a series of bobbins mounted in the hopper one above the other I have provided the said hopper with a slack-thread controller 0 (represented in Figs. 1 and 4 as composed of a wire,) down along which the weftthreads between the bobbins and the holder 0' travel as the bobbins descend in the hopper intermittingly, as they must do, by gravity, as one bobbin after another at the lower end of the series is picked off by the pusher.

Immediately above the bar D I have pivoted a deflector 6, it being represented as a narrow plate acted upon by a suitable spring 6', so that it normally stands across the space traversed by the picker-stick. The spent bobbin is ejected from the shuttle by the incoming bobbin, while the picker-stick is retracted, as in Fig. 3, and in such position the deflector is struck by the bobbin and the small ortip end of the bobbin is arrested, while the'heavier Y or head end continues to travel downwardly into the box or receptacle D. WVhile the bobbin is descending below the bottom of the shuttle-box (see dotted lines, Fig. 3) the picker-stick is moving toward the loom side, and in doing so it strikes the innersido of the de- Hector and moves it outwardly, thus causing the deflector by its movement to aid the bobbin in its movement into the box D, the de fiector positively preventing the dropping or pushing of the bobbin by any accident into the space in which the picker-stick travels 1'. 6., the space behind the bar D It Will be noticed that the lever A is connected positively by a link with the shaft (1, and that the said shaft in turn at its opposite end is connected positively with the-trip, so that the trip is lifted positively by the backward movement of the weft-fork slide, and the latter is moved positively toward the lay by the gravity of the trip. This positive connection results in less chances for the trip to be moved by the force of momentum than when the lever A acts against a projection on the shaft (1, as in the said patent, and is not positively connected thereto.

While it is preferred to make the trip device adjustable as to its effective length, yet

I may, if desired, as an equivalent or to provide for yet finer adjustments, make the bunter 0 adjustable on or with relation to the lay toward or from the breast-beam, and in this present instance of my invention I have effected such adjustment by means of an adjusting device, (represented in Figs.- t and 10 asa slotted Wedge 10,) through which is extended the bolt'w, which confines the bunter in place, and it will be obvious by adjusting the Wedge vertically that the point of the hunter will be moved horizontally. Instead of this particular form of adjusting device, (a wedge,) I may employ any other usual or suit able adjusting device.

It willbe understood that by or through the adjusting devices described, one or the 7 nected to the hopper; but herein the tip of the bobbin is supported independently by a yielding tip-rest, so that the pusher may act upon the bobbin near its head and start the same out of the hopper, while the tip is yet supported upon the rest, the latter yielding at the proper time to let the tip of thebobbin out from the hopper and into the shuttle.

Having described my'invention, What I claim, and desire to secure by Letters Patent, is-

1. In a loom for automatically supplying a shuttle with a bobbin, a hopper, and a pusher, combined with an adjustable trip device, whereby the effective stroke of the pusher may be regulated, for' the purposes set forth.

2. The Weft-feeler, its slide-bar, the shaft cl, the lever moved by the said slide-bar, the pusher, and connected trip, combined with links to positively connect the said lever and the said trip with the said shaft cl to actuate the trip positively and prevent rebound thereof, substantially as described.

3. The hopper to receive a-series of bobbins or cops, and a holder for the ends of the threads carried by the said bobbins or cops, combined with a slack thread controller adapted to act upon the said threads as the bobbins travel in the hopper and prevent their entanglement, substantially as described.

4. The lay, its shuttle-box, and picker-stick, combined with a movable bobbin-deflector located below the shuttle-box and adapted to direct the bobbin discharged from the shuttle to one side and prevent the bobbin getting into theslot in which the picker works, substantially as described.

5. The combination, with a bobbin-receiving hopper having a yielding rest for the head of the bobbin, of an independent yielding cup-shaped rest for the tip end of the bobbin, substantially as described.

6. The hopper and pusher, combined with independentyieldingrestsforthe headand the tip of the bobbin, substantially as described.

7. The hopper, pusher, andyielding rest.

for the head of the bobbin, combined with the tip-rest and its actuating-spring, and means to adjust the strength of the spring, s ubstan-.

tially as described.

8. p In a loom for automatically supplying a shuttle with a bobbin, the following instrumentalities, viz: a hopper, a pusher, a lay, and a trip device and bunter made adjustable with relation to each other, whereby the relative normal positions of the bunter and trip device may be regulated to'adapt the hopper and pusher to the loom upon which they are .to be used, substantially as described.

In testimony whereof I' have signed my name to this specification in the presence of two subscribing witnesses.

JAMES H. NORTHROP.