US655649A - Loom. - Google Patents

Description

No. 655,649. Patented Aug. 7, I900. W. H. BAKER &. F. E. KIP.

L 0 U M (Application filed May 7, 1900.)

4 SheetsSheat (No Model.)-

INVENTORS e/s/ Si ATTORN EY 0.655.649. Patented Aug. 7, I900.

' w. H. BAKER & F. E. KlP.

(Application filed May 7, 1900.)

(No Model.)

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No. 655,649. Patented Aug. 7, I900.

w. H. BAKER & F. E.K|P. LOOM.

(Application filed May 7, 1900.) (No Model.) 4 Sheets-Sheet 3.

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forming a part thereof.

llNrrED STATES 1 PATENT OFFICE.

wiLLIAM H. BAKER, on CENTRAL FALLS, RHODE ISLAND, AND FREDERIC E. KIP, on MONTOLAIR, NEW JERSEY.

LOOML SPECIFICATION forming part of Letters Patent No. 655,649, dated August 7, 1900.

Application filed May 7, 1900.

Be it known that we, WILLIAM H. BAKER, residing at Oen tral Falls, Providence county, Rhode Island, and FREDERIO E. KIP, residing at Montclair, Essex county, New Jersey, citizens of the United States, have invented certain new and useful Improvements in Looms, of which the following is a specification.

This invention relates to weft or filling replenishing mechanism for looms, and particularly for double-shuttle looms; and the object of the invention is, in the main, to provide such a mechanism with mechanical means for setting the replenishing mechanism in operation, said means being controlled by the presence or absence of weft or filling in the shuttles in play.

In the accompanying drawings,which ill ustrate an embodiment of the invention, Figure 1 is a sectional elevation of apart of the loom as seen-from the left in Fig. 2; and Fig. 2 is a front view of the same part, the maga zine being in vertical axial section. Fig. 3 is a vertical transverse section on a larger. scale than the principal views through the shuttle-boxes and shuttles and showing also the drivers and the mechanical controlling devices. Fig. 4 is a front View of the parts seen in Fig. 3 and is on the same scale as the last-named figure. Fig. 5 is a sectional plan view of the parts seen in Figs. 3 and 4. Fig. 6 is a side elevation of the shuttle, the bobbin or weft holder therein being partly in section. This view shows the radially-movable indicator on the bobbin. Fig. 7 is a cross section at m in Fig. 5. Figs. 8 and 9 are views 011 a relatively-large scale illustrating the escapement device and the means for winding up the magazine-spring.

1 is the loom-frame, 2, the breast-beam 3 is the lay; 4, the lay-swords; 5, the reed, and 6 the pickerstick. These are common features in looms of this class.

On the breast-beam or loom-frame in proper position is mounted rotatively a magazine M to carry or hold weft or filling to replenish the shuttles in play in the loom. WVhen the lay beats up to the position seen in Fig. 1, the superposed shuttle- boxes 7 and 7 thereon are brought up close to the side of the magazine Serial No. 15,786. (No ma i.)

I M, so that two of-"tlie contiguous bobbins or weft-holders 8 in the magazine will be situated directly opposite to and on substantially the same level with the respective bobbinsin the shuttles 9 in the shuttle-boxes.

The magazine M comprises a sleeve-like boss 10, which turns on a spindle 11, fixed in a suitable bracket 12 on the loom-frame. On this boss 10 is a head 13, and from this head extends, parallel with the axis of the magazine, bars 14, which are connected at their inner ends with a ring 15. On the magazine are suitable spring-clips 16, in which are supported the bobbins or weft-holders 8, which are arranged concentrically with the axis of the magazine and so spaced as to be as wide apart as the bobbins in the two shuttles in the shuttle-boxes. The magazine is driven by a spring 17, coiled in a hollow or casingin a ratchet-wheel 18, which turns loosely on the boss 10. One end of the spring is secured to the boss and the other to the casing, and the spring is wound up by rotary impulses imparted to the ratchet-wheel at each beat-up movement of the lay through the medium of the pawl 19, carried by the lay. This pawl is backed by a cushion-spring 20, Fig. 8, and when the spring 17 is wound up tight the cushion-spring 20 yields at each blow. A pawl 21 stops the ratchet-wheel against back rotation in a well-known way. The magazine tends to rotate in the direction of the arrow .2 in Fig. 1.

The weft-holders are driven from the maga- 8 5 zine into the respective shuttle-boxes by two .levenlike drivers 22, which are fulcrumed at 23 side by side in the loom-frame and ex tend up to a level with the respective shuttleboxes. These drivers are situated adjacent 0 to the inner end of the magazine and'have their operating-heads formed laterally, so as to extend into the open end of the magazine Within the ring 15. Each driver has a retractingspring 24 and carries at its lower end a toe 25, adapted to be impinged upon at the proper time by a tappet on the lay, as will be hereinafter more fully explained.

The magazine is held against rotation normally by a spring-pawl 26, Fig. 8, which enzoo gages the teeth of a ratchet-wheel27', fixed in the boss of the magazine and provided with half as many teeth as there are bobbins in the magazine, or one tooth for each two bobbins therein. In the construction shown the magazine is adapted to contain or carry twelve bobbins and the wheel 27 has six teeth. This pawl-and-ratchet device is a species of escapement, and at each vibration of either driver the pawl 26 is moved for the moment out of engagement with the tooth of the Wheel 27, so that the magazine may rotate to the extent of one tooth of the wheel 27. This will bring two bobbins in the magazine in front of the respective sh uttle-boxes. To operate the pawl 26, this pawl has on it an arm 28, which projects upward, so as to be in the path of spring (or gravity) latches 29, one carried by each of the drivers. When either one of the drivers is driven forward to force or push a bobbin into the shuttle-box in front of it, the latch 29 thereon draws or wipes over the arm 28; but when thedriver is retracted by its spring the end of the latch first impinges on the arm 28, rocks the arm and pawl to an extent suflicient to free the latter from the ratchet, and then passes over the arm,

. thus allowing the pawl to reengage the ratchetwheel before the next tooth therein can pass the pawl.

The mechanical indicating and controlling mechanisms will now be described, referring to Figs. 6 and 7 for the indicating feature and to Figs. 3, 4, and 5, in the main, for the controlling feature. Fig. 6 shows the shuttle 9 provided With spring-jaws 9 to hold in place the Weft-holder or bobbin 8, which latter is represented in Fig. 6 as empty or without weft, the better to illustrate the mechanical construction. This bobbin has in it a longitudinal slot in which is mounted a radially-movable lever-indicator 30, backed by a spring 31. The indicator is fulcrumed at 32, and the spring tends to hold its free end pressed out against a stop-.ring 33 about the bobbin. The swell on the indicator in that case will be projected into the path of a slidably-mounted feeler 34, adapted to move into and out of the shuttle in the shuttle-box. As the two controlling devices are in substance the same, only one need be described minutely.

On the side of the shuttle-box is mounted a rock-shaft 35, provided with an arm 36, which loosely engages the detector or feeler 34, and a coil-spring 37 about said shaft tends to so rock the latter normally as to drive the feeler into the box or shuttle. 0n the shaft is also a crank-arm 38, to which is coupled a link 39, which extends down and is coupled to a similar crank-arm 40 on a rock-shaft 41 below. On the rock-shaft 41 are lugs 42, in which is hinged a tappet 43, adapted when depressed to impinge upon the toe 25 of a driver 22 and operate the latter. To allow of some yielding vertically of the tappet when the blow is struck, the latter is pivotally mounted, as stated, and upheld by a stiff leaf-spring 44. Normally the tappet 43 is upheld, asseen in Fig. 3, and the feeler projects into the shuttle to the full extent; but when the lay recedes to the picking position to receive the shuttle from the opposite side of the loom a tappet fixed on the loomframe impinges on an arm 45 on the rockshaft 41, rocks the latter, and through the link 39 rocks also the upper rock-shaft 35, and thus withdraws the feeler 34 from the path of the shuttle, so that the latter may enter the box. The fixed tappet referred to is indicated at 46 in Fig. 1, and a similar tappet for a like purpose is also illustrated in our pending application, Serial No. 4,221, filed February 6, 1900.

It may be stated here that one of the lower rock-shafts 41 is tubular and the other rockshaft extends through it, whereby the two rock in the same bearings and about a com mon axis. Each carries a tappet 43, but one broad fixed tappet 46 will serve to rock both 7 shafts 41 simultaneously.

In the operation of the device if a shuttle be substantially exhausted of weft when it enters the box while the lay is at the pickingpoint the indicator therein will be protruded, as seen in. Fig. 6. Consequently when the lay moves up toward the breast-beam and the fixed tappet 46 Withdraws the feeler 34 will be unable to enter the shuttle to the full extent, as it will impinge on the indicator. Hence the tappet 43 will not be elevated high enough to clear the toe 25 on the driver, so that when the lay heats up the tappet will strike the toe and actuate the driver. It should be noted, however, that before the tappet 43 comes into action on the driver the shaft 41 is rocked until the lugs 42 come to a bearing on the lay or laysword. This swings the tappet into a substantially-horizontal position.

We have shown an escapement device which shifts to the extent of two bobbins at each movement, and this device will serve very well if the operator or attendant keeps the blank spaces produced in the magazine filled with bobbins; but obviously, so far as the features of the loom other than the escapement device are concerned, the magazine may as well be supplied with an escapement similar to that illustrated in our pending application, Serial No. 14,544, filed April 27, 1900, or that shown in our pending application, Serial No. 9,493, filed March. 21, 1900. In both of these constructions the magazine is shifted to the extent of one bobbin when the upper shuttle is supplied and to the extent of two bobbins when the lower shuttle is supplied.

The shuttle 9 will be of the kind known as self-threading, and the magazine M will have a weft-end holder 47. (Seen in Fig. 2.) These are both known devices and will require no special description.

The word shuttle. as herein employed is intended to mean any device for carrying the weft through the shed in the warps, and

the Word bobbin is intended to mean any weft-holder adapted to be detachablymounted in a shuttle. By the presence and the substantial absence of weftin the shuttle as herein employed is meant in the first instance the presence of a sufficient amount of weft or filling on the weft-holder to hold the indicator pressed in out of the path of the feeler and in the second instance such a degree of exhaustion of the weft or filling as will permit the indicator to protrude into the path of the feeler.

The spring-clips which hold the bobbins in place in the magazine have no special novelty so far as this application is concerned and may be of any suitable construction, and heads of the drivers may be made to bear on the bobbin at any convenient points best adapted for driving the bobbin from the magazine into the shuttle. In order to bring the latches 29 to the same level, that one on the shorter driver is mounted on an arm or extension on the latter.

The feeler may be of any desired width. By giving it a moderate width it will be enabled to impinge on the indicator even though the shuttle be not accurately positioned in the box at each pick.

We are the first, as we believe, to produce a double-shuttle loom having a single magazine which automatically feeds weft or filling to either or both of the superposed shuttles, said magazine after a supply has been transferred therefrom always rotating to the eX- tent of space occupied in the magazine by two weft-holders. We therefore do not limit ourselves to specific devices for effecting this, as there are numerous other ways whereby the same result may be accomplished.

We have shown our magazine as carrying a bobbin, so called, but it is obvious that said magazine is equally well adapted to carry any form of weft-holders adapted to be driven or pushed into shuttles.

Having thus described our invention, we claim- 1. In a loom having means for picking two shuttles through two warp-sheds at each pick of the loom, a weft or filling supplying mechanism comprisingasingle magazine or holder, furnished with means for supporting weftholders therein, means for effecting when required, and on the same pick of the loom, the transfer of either one or two weft-holders from said magazine to either or both of the shuttles in play, a device for restraining, as required, the movement of said magazine, means for rendering said restraining device inoperative to permit the magazine to always rotate to the extent of the space occupied by the two weft-holders, independently of whether one or two weft-holders have previously been transferred from the magazine, and means whereby the times of operation of said supplying mechanism are controlled through the presence or substantial absence of weft or filling in the respective shuttles in play.

2. In aloom having means for picking two shuttles through two warp-sheds at each pick of the loom, a weft or filling supplying mechanism comprising a single magazine or holder, furnished with means for supporting weftholders therein, means for effecting, when required, and on the same pick of the loom, the transfer of either one or two weft-holders from said magazine to either or both of the shuttles in play, a device for restraining, as required, the movement of said magazine,

means for rendering said restraining device inoperative to permit the magazine to always rotate to the extent of the space occupied by the two weft-holders, independent of whether one or two weft-holders have previously been transferred from the magazine, and means for controlling the time of operation of said supplying mechanism, said means consisting of mechanical devices which are made inoperative by the presence and operative by the substantial absence of weft or filling in the respective shuttles in play.

3. In a loom, the combination with means for picking two shuttles through two warpsheds at each pick of the loom, of a weft-replenishing mechanism comprising a single rotatable feeder or magazine containing a reserve supply of weft or filling in the form of weft-holders adapted to be driven or pushed into the respective shuttles, means for maintaining two of said weft-holders at the delivery-point adjacent to the said shuttles, means for driving or pushing, during the same pick of the loom, either or both of the said weftholders into either or both the shuttles. in play, a device for restraining, as required, the rotation of said magazine, means for rendering said restrainingdevice inoperative to permit the magazine to always rotate to the extent of the space occupied by the two weft-holders, independently of whether one or two Weftholders have previously been transferred from the magazine, and means whereby the times of operation of the weft-replenishing mechanism are controlled by the presence or substantial absence of weft or filling in the shuttles in play.

4. In a loom, the combination with means for pickingv two shuttles through two warpsheds at each pick of the loom,of a weft-replenishing mechanism comprising a rotatable feeder or magazine containing a reserve supply of Weft or filling in the form of weft-holders adapted to be driven or pushed into the respective shuttles, means for maintaining two of said Weft-holders at the delivery-point adjacent to the said shuttles, means for driving or pushing during the same pick of the loom, either or both of the said Weft-holders magazine to always rotate to the extent of the space occupied by the two weft-holders, independently of whether one or two welt-holders have previously been transferred from the magazine, and means for controlling the time of operation of the weft-replenishing mech anism, said means consisting of mechanical devices made inoperative by the presence and operative by the substantial absence of weft or filling in the shuttles in play.

- 5. In a loom, the combination with means for picking two shuttles through two warpsheds at each pick of the loom, of a weft=sup plying mechanism comprising a rotatable feeder or magazine containing a reserve sup= ply of weft or filling in the form of weft holders adapted to be driven or pushed into the respective shuttles, means for maintaining two of said weft-holders at the delivery-point adj acent to the said shuttles, two drivers adapted for driving out laterally on the same pick of the loom either one or two weft-holders and driving or pushing same into the proper shuttles in play, means for operating said drivers independently, a device for restraining, as required, the rotation of said magazine,-means 'for rendering said restraining device inoperafor picking two shuttles through two warpsheds at each pick of the loom, of a weft-supplying mechanism comprising a rotatable feeder or magazine containing a reserve supply of weft or filling in the form of weft-holders adapted to be driven or pushed into the respective shuttles, means for maintaining two of said weft-holders at the delivery-point adjacent to the said shuttles, two drivers adapted for driving out laterally, at the same pick of the loom, either one or two weft-holders and driving or pushing same into the proper shuttles in play, means for operating said drivers independently, a device for restraining, as required, the rotation of said magazine,means for rendering said restraining device inoperative to permit the magazine to always rotate to the extent of the space occupied by the two weft-holders, and mechanical feeler devices which control the times of operation of said supplying mechanism.

7. In a loom having means for picking two shuttles through two warp-sheds on each pick of the loom, a weft or filling supplying mechanism, comprising a magazine or holder for a reserve supply of weft or filling, said magazine being rotatively mounted and having an axial boss, a single head or end, arms on said head, extending therefrom, and furnished with means for supporting weft-holders, two drivers adapted for driving out laterally, on the same pick of the loom, either one or two weft-holders and driving or pushing same space occupied by the two weft-holders, and

exhaustion-indicating devices, controlled by the presence or absence of weft or filling in the respective shuttles, for setting in opera tion said supply mechanism.

8. In a loom having means for picking two shuttles through two warp-sheds on each pick of the loom, a Weft or filling supplying mechanism, comprising a magazine or holder for a reserve supply of weft or filling, said magazine being rotatively mounted and having an axial boss, a single head or end, arms on said head and extending therefrom, and means for supporting weft-holderstherein, two drivers adapted for driving out laterally, at the same pick of the loom, either one or two weft-holders and driving or pushing same into the proper shuttles in play, means for operating said drivers independently, a device for restraining, as required, the rotation of said magazine, means for rendering said restraining device inoperative to permit the magazine to always rotate to the extent of the space occupied by the two weft-holders, and two mechanical devices which control the times of operation of said supplying mechanism.

9. In a double-shuttle loom having super= posed shuttle-boxes and means for picking two shuttles simultaneously through the sheds in the warp, the combination with a rotatablymounted weft-carrying magazine, means for driving the same, and drivers for transferring the weft-holders from said magazine into the respective shuttles, of means for operating the said drivers, an escapement device comprising a ratchet-wheel fixed to and rotating with the magazine and having one-half as many teeth as there are weft-holders in the magazine, a pawl which restrains the rotation of said ratchet-wheel, and means, carried by the respective drivers, for releasing said pawl from the wheel momentarily when a driver is actuated.

10. In a double-shuttle loom having superposed shuttle-boxes and means for picking two shuttles simultaneously through the sheds in the warp, the combination with a rotatablymounted weft-carrying magazine, means for driving the same, and drivers for transferring the weft-holders from said magazine into the respective shuttles, of means for operating said drivers, anescapement device comprising a ratchet-wheel rotatable with the magazine and having half as many teeth as thereare weft-holders in the magazine, a pawl which restrains the rotation of said ratchet-wheel, and spring-latches on the respective drivers and adapted to actuate said pawl, on the back stroke of either driver, to momentarily release the pawl from the wheel and allow the magacomprising a ratchet-wheel connected with the spring and a cushioned pawl on the lay adapted to impinge upon and rotate said ratchet-wheel, drivers for driving the weftholders from the magazine into the respective shuttles and means for operating said drivers, of an escapement device for permitting the magazine to rotate to the extent of two weftholders at each operation of a driver.

12. In a weft or filling supplying mechanism for looms, the combination with a rotatively-mounted magazine adapted for carrying weft-holders, and means for transferring said weft-holders from said magazine into shuttles, of a spring for winding said magazine, a ratchet device connected with said spring, and a cushioned pawl for operating said mechanism, the said pawl yielding when the resistance to winding is too great.

13. In a weft 0r filling changing or supplying mechanism for looms, the combination with a rotatively-mounted weft orfilling carrying magazine, and means for transferring the weft-holders from said magazine into shuttles, of a spring fordriving the magazine, a ratchet-windin g device connected with said spring, the pawl mounted in a guide and adapted to operate said winding device, the said guide for the pawl, and a spring behind the pawl, substantially as and for the purpose set forth.

14. In a weft or filling changing or supplying mechanism, the combination with the rotatively-mounted weft-carrying magazine, and means for transferring the weft-holders from the magazine into shuttles,of the springbarrel having the'ratchet-teeth 18, the back stop-pawl 21, engaging said teeth, the spring 17, and the vibrating, cushioned pawl which engages also the teeth 18 for intermittently rotating the spring-barrel for winding up the spring, and a detent which normally prevents the rotation of the magazine.

15. In a weft supplying mechanism for looms, the combination with a rotatablymounted weft-carrying magazine," means for driving the same, and means for transferring the weft-holders from said magazine into shuttles, of an escapement device comprising a ratchet-wheel fixed to and rotating with the magazine, a pawl which restrains the rot-as tion of said ratchet-Wheel, and means for releasing said pawl from the wheel momenta rily when the transfer of weft is made.

In witness whereof we have hereunto signed our names, this 30th day of April, 1900, in the presence of two subscribing witnesses.

WILLIAM H. BAKER.

FREDERIO E. KIP.

YVitnesses:

PETER A. Boss, HENRY CoNNn'rr.

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