US1048526A - Hackle-chain apparatus. - Google Patents

Description

J. GOOD.

HAGKLE CHAIN APPARATUS.

APPLICATION FILED JUNE 2a, 1911.

COLUMBIA PLANOORAPN CO-IWASIIINGTON, 01c.

Patented Decf31, 1912.

J. GOOD.

HAGKLE CHAIN APPARATUS.

APPLICATION FILED JUNE 28, 1911.

1,048,526. Patented Dec.31, 1912.

4 SHEETS-SHEET 2.

l l Z6 Z7 cuLumum PLANuaRAPn c 00000000 uTnN. D. c.

J. GOOD. HAGKLE cHAIN' APPARATUS.

APPLIOATION FILED JUNE'ZB, 1911.

Patented Dec. 31, 1912.

4 SHEETS-SHEET 3.

COLUMBIA PQNOOE'APII 110-. WASHINGTON. D C.

J. GOOD.

HAGKLE CHAIN APPARATUS.

APPLICATION FILED 111m: 28, 1911.

Patented Dec. 31, 1912.

4 SHEETS-SHEET 4.

WM Ewi A EFI 1 1 5 5 vwc wtoz UNITED STATES PATENT OFFICE.

JOHN GOOD, OF NEW YORK, N. Y., ASSIGNOR TO GOOD INVENTIONS (30., OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

HACKLE-CHAIN APPARATUS.

To all whom 2t may concern:

Be it known that I, JOHN Goon, a citizen of the United States of America, residing in the borough of Brooklyn, city and State of New York, have invented the following described Improvements in Hackle-Chain Apparatus.

The invention is an improvement in apparatus involving hackle-pin chains such as are used in long-line combing machines and other fiber working machinery, and its obj ect is to improve the construction and mode of operation of such apparatus in several related particulars whereby they are adapted to be efficiently operated at high speeds and with improved action in various respects as hereinafter explained.

The invention more especially provides apparatus of particular utility for combers of the type wherein the hackle or combing chain receives the fiber to be combed upon an intermediate portion of its flat working stretch, the features thereof rendering it of advantage in such combers being the facility for control of the rake of the hackle pins during their initial engagement with the fiber as well as the capacity for operation at high speeds, but the invention is also serviceable with other and different types of fiber-working apparatus, both in respect of its high speed and the facilities it provides for the removal of the fiber, all of which will be apparent to those skilled in the art fro-m the following description.

The invention consists in the construction, relative arrangement and mode of operation of the hackle-chain links, dogs and the tracks and supports upon which the same are mounted and guided, as shown for example in the illustration of a machine embodying my invention contained in the accompanying four sheets of drawings forming part hereof.

In said drawings Figure 1 is a top plan view of so much of a combing or hackling machine as will be necessary for a complete understanding of the mode of operation and construction of the invention. Fig. 2 is a longitudinal vertical section of Fig. 1 on line IIII thereof, showing feeding and delivery devices. Fig. 3 is a section view in slightly larger scale on line III--III of Fig. 1; the intermediate parts of the machine, in each of the above figures being broken away. Fig. 4 is a detail section of Specification of Letters Patent.

Application filed June 28, 1911.

Patented Dec. 31,1912. Serial No. 635,719.

the hackle chain guideway on line IV-IV, illustrating the construction of the chain and the attachment of the dogs thereto. Fig. 5 is a detail in side elevation of a portion of the side plate on one side of the machine showing mechanism for controlling the rake of the pins of the hackle chain. Fig. 6 is a transverse vertical section of Fig. 1 on line VI-VI thereof. Figs. 7 and 8 are respectively detail sections on'lines VII-VII and VIIIVIII of Fig. 3. Fig. 9 is a horizontal detail section, partly in plan, of the hackle chain, its guideway and the dog track-ways. Fig. 10 is a section of the end of the machine of Fig. 1 on enlarged scale and indicating the relation of the tracks and carrier wheels. Fig. 10 is a similar detail of a slightly modified construction. Fig. 11 is a transverse vertical section of the machine of Fig. 1 on line XIXI of Fig. 10, looking in the direction of the arrows. Figs. 12, 12 and 13 are details of flexible or jointed connections for the dog trackway. Fig. 14 a detail of a modification.

The frame of the machine comprises an appropriate number of legs, 1, and two parallel side frames supported thereon and suitably stayed together in parallel relation by means of a number of cross rods 3, some only of which are shown. Each side frame may be cast in one or several parts or may be otherwise formed, but for convenience of access to the interior mechanism they are preferably skeletonized, as by leaving open the central portion of each, so as to form upper and lower side plates thereof, the upper plates, marked 4 in Fig. 3, being merged at their ends with the lower plates, marked 5, so that the two side frames will thus form continuous lateral boundaries to the path of movement of the hackle chain and will conform generally to the shape of such path. The upper and lower side plates are provided at intervals along their length with inwardly projecting studs 6, to which are secured a set of rails, which form the main guideway for the hackle chain, the said guideway being disposed within or between the opposite side frames and spaced therefrom on each side about 3 or 4 inches, and being continuous for the full circuit of the chain except for such portions thereof where the bonds or curves occur. At these points carrier wheels are preferably prostraight and horizontal, the chain runs between the proximate edges of the upper and lower rails, 7, 8, the two being parallel to each other and forming an open slideway or slot between them of uniform width,

there being a similar pair of rails on the opposite side of the machine frame similarly arranged. At the end of the stretch of guideway which forms the delivery end thereof, the lower rails 8, on both sides of the machine, extend downwardly as shown at 9, substantially at right-angles and form an upright or substantially vertical and also substantially straight portion of the guideway intermediate between the working and return stretches. At the lower end of this intermediate vertical portion the said rails turn again at about a right-angle to form the beginning 10, of the guideway for return or lower stretch of chain. The rails 11, which are held by their studs 6 from the lower side plates 5, extend fro-m the end of the vertical stretch 9 throughout the full length of the return stretch forming the return guideway on which the hackle chain moves to the lower side of a pair of large carrier wheels 17, by which it is carried upwardly to the beginning of the upper stretch above referred to, into which it is introduced as indicated in Fig. 2. The chain rests by its own gravity upon the return rail 11 and is not required to be held thereon by an upper rail, as in the case of the upper or working stretch,'except in the immediate neighborhood of the return bend where the re versely turned extremity 10 of the upper rail overlaps it for this purpose. It will be observed that the guideway as thus formed provides a continuous conductor for the hackle chain with no slack stretch in its entire length or circuit.

The carrier wheels which carry the hackle chain around the delivery bend of the guideway are marked 12 and are mounted just inside of the guideway rails 8 or 9, as shown more clearly in Fig. 11, and upon a cross rod or cross shaft 13, which shaft is mounted or journaled on suitable supports so that it terminates at both its ends, somewhat, inside of the side plates 4:, thus leaving the vertical space between the side plates and the chain guideway rails free and clear for the passage of the dogs of the hackle chain, as later described. In the case illustrated, these supports for the cross shaft 13 are formed by a pair of gooseneck brackets 14, secured to the side frames and projecting inwardly and then rearwardly toward the delivery bend where the ends of the cross shaft are inserted in them. Instead of such brackets, however, the said cross shaft could, if desired, be mounted directly in the portion 9 of the lower rail 8, but in that case the said rail will require to be securely mounted upon the side frames of the machine in order to provide adequate stability to the cross-shaft. The brackets 14 above referred to, may be cast on the side frames, as indicated herein, or they may be securely bolted thereto and conveniently they are arranged to receive the ends of the cross shaft 18 at points just outside of the guide rails 8, which'latter are perforated or slotted to allow the cross shaft to pass through them and into the brackets.

The radius of the carrier-wheels 12 can be as desired, but is preferably short in order to provide a relatively sharp downward curve for the chain at the delivery end of its working stretch, whereby the hackle pins will be quickly withdrawn from the sliver. By the mounting of the carrier wheel on the brackets 14 or equivalent supports, disposed inside of the vertical planes of the side plates, it will be observed that the curve at the delivery bend can be made as short as desired and will not be limited as heretofore by the requirement that the dogs on the hackle chain must clear the axle of the carrier wheels as heretofore.

I have illustrated in Fig. 10 a chain guideway and a delivery bend carrier wheel 12 arranged to give a sharp downward turn to the hackle chain. In Fig. 10 I have illus trated a much smaller carrier wheel, marked 12 which provides a still sharper bend. In both cases the clearance allowed for the dogs of the hackle chain and the sharpness of the curve permit the pins to be withdrawn from the sliver with a strictly perpendicular movement which enables the receiving end of the delivery mechanism (45 Fig. 2) to have a very close nip on the sliver without danger of contact with the pins.

At the lower or return bend of the chain guideway the hackle chain is also carried on a pair of carrier wheels, marked 15, but 1n this case shortness of curvature is not of consequence and the wheels may therefore be large enough to be carried on a cross shaft 16, extending full across the machine from side frame to side frame thereof. The larger radius of these wheels provides ample clearance for the dogs on the hackle chain.

In the case of both carrier wheels, the rim faces on which the hackle chain is received and carried around the bends are smooth and devoid of notches or seats for the gill bars of the chain, such wheels being cheaper in construction and more accurately centered and balanced than the notched wheels generally used, and the chain runs with less noise and vibration upon them and with less friction, all of which are considerations of importance for chains intended for high speeds. The peripheries of the carrier wheels 12 and 15 project slightly beyond the edge faces of the guideway rail sections 9 so as to provide for the engagement of the chain upon the wheels and thereby relieve the corners of the said sections 9 from excessive wear.

The carrier wheels 17 at the opposite end of the machine may also have smooth edges, but the same are shown herein as the usual notched wheels commonly employed for conveying hackle chains from one stretch to the other. Such wheels are carried on the cross shaft 18, which is journaled in the side frames in a cross bar 19, joining the upper and lower side plates 4 and 5.

The hackle chain for use in the chain guideway that has been above described is composed of a series of parallel gill-bars 20 carried by and between two parallel series of connected chain links 21 in which the bars are mounted to rock or rotate in such manner as to be entirely independent of the pivotal joints between the links themselves. For this purpose every alternate link is provided with a boss 22 (Fig. 4) inserted within the eye of the adjacent link, which thus forms a link joint and the gillbar is mounted or journaled inside of the boss, which is tubular for this purpose, so that thus the bar is not subject to the strain upon the links. The links are held in place upon the ends of the gill-bars by means of the dogs which are fastened to their projecting ends, a shoulder being formed on the gill-bar between which and the dog the links are confined. Each dog is composed of a hub 23 and two arms. One of the arms is marked 24, and may be termed the working arm, since its function is to maintain its gill-bar at the proper angle of rake throughout the working stretch of the chain, and the other is marked 25 and may be termed the auxiliary arm, since it supplements the functions of the working arm. The working arm is preferably longer than the auxiliary arm and the two are disposed on the hub at substantially a right angle to each other and each extends away from the hub obliquely to the axis of its gill-bar and terminates in a cylindrical boss 2% and 25 respectively (Fig. 9), by which it travels in and is guided by the dog trackways on the side plates t and 5. This oblique disposition of the arms of the dogs renders the length of the arms entirely independent of the distance between the successive gillbars and thereby provides adequate leverage upon the gill-bars for maintaining them at the desired angle of rake without producing undue friction or strain upon any portion of the running gear, as will appear more fully in connection with the description of the dog-guiding means, below. The gill-bars of the hackle chain are preferably spaced from each other by the minimum distance which will permit them to leave the delivery end of the working stretch in a vertical position or perpendicular to the direction of movement of the sliver as it passes to the delivery mechanism 45. A larger separation reduces the efficiency of the chain as a combing instrument. The oblique arms of the dog, however, may be so long as to overlap the axes of adjacent gill-bars, or of any length desired without conflict with adjacent dogs and thus enables a chain of the maximum combing efficiency and with the maximum sharpness of curve at the delivery bend to be run safely at very high speeds. There may be a dog at one or both ends of the successive gillbars, the dog on one side of the chain being reverse duplicates of those on the other. The hubs of the dogs may provide the bearing for the gill-bars upon the guideway rails as indicated in Fig. 4; or the links themselves may form such hearing as indicated in other figures of the drawing, as preferred.

The trackways for the dogs are preferably formed by parallel ribs forming grooves between them, the ribs being secured or fastened to the inner faces of the side plates t and 5 in any convenient manner and being continuous throughout the full circuit of the chain guideway so that the hackle chain is at all times positively controlled in respect of the rake of its pins. At certain portions of the dog trackway, the ribs forming the trackway groove are integral with or permanently secured to the side plates and in other sections they are movable thereon for purposes of adjustment, as will be presently explained. The trackways are divided into a main or working trackway 26 for receiving and guiding the bosses on the working arms 24 and an auxiliary trackway 27 for receiving and guiding the auxiliary arms of the dogs. Each of these trackways, viz: the working and auxiliary trackways, is separate and independent of the other, the working arms never entering the auxiliary trackway groove, nor the auxiliary arms the working groove. At the region of the delivery bend above referred to and also at their junction in the return stretch the'working and auxiliary trackways overlap each other so that the control of one does not cease until the other has received the other arm of the dog and begun its control thereon, and the entrance and outlet ends of each trackway groove are slightly flared so as to receive the bosses 24 and 25 without shock and so that the chain can be revolved in either di rection without disengagement of the dogs from their grooves. The portion of the working trackway which is co-extensive with the upper working stretch of the chain is or may be substantially parallel to the chain guideway formed by the rails 7 and 8, its relative position above or below the level of the said guideway determining the angle of rake of the hackle chain pins as they travel through this stretch.

As shown by Fig. 9 the working arms 2% of the gill-bar dogs trail behind the gill-bars so that relative elevation of the working trackway 26 produces forward inclination of the pins, while depression thereof produces reverse inclination thereof. In certain types of hackling machinery it is clesirable to adjust or control the rake of the pins in their working stretch, or at other parts of their circuit, and for this purpose a section 26 of the trackway 26 wherever the control is desired, is mounted so as to be movable upon its side plate, this section be- 1ng coupled to the adjacent ends of the trackway, which are rigidly mounted by means of linked sections 26, or other form of flexible connection whereby it may be raised or lowered without destroying the smooth continuity of the trackway groove. In the case of the link-form connections, the linked sections 26 are jointed by means of pins in oblong slots, as indicated at 27 in Figs. 1.2 and 13, which permits adjustment of the section 26 in the obvious manner. Instead of such connections the adjustable section 26 could be connected with the fixed trackway ribs by flexible blades 26, as shown in Fig. 12 Itiovement is imparted to the adjustable section in the present instance by means of pairs of cams 28, bearing above and below upon the said section, each cam being carriedon a short shaft journaled in the side plate 4, the other end of which shafts carry worm-wheels 29, the latter being all in mesh with a common worm shaft 30 provided with a hand wheel 31. Rotation of the hand wheel causes the corresponding rotation of the worm wheels and cams, producing corresponding elevation or depression of the section 26" without, however, depriving it of proper support, since the contours of the upper and lower cams are properly coordinated to maintain a bearing on the trackway ribs. Corresponding adjustment is simultaneously made with the movable section of the dog trackway on the opposite side of the machine, through the crossshafts 32 of the lower cams and worm wheels, which shafts extend to the lower gears of the spur gear couples 33, on the opposite side plate, and the similar cams 28 that rotate with these spur gears produce the adjustment of the adjustable section in the same way as the cams first described. The arrangement is plain in Figs. 5 and 6 of the drawings from which it will be seen that the control of the rake of the hackle pins can be efiected even while the machine is in motion, so that the effect thereof upon the fiber can be instantly observed, but it will be understood that for one chain guideway there may be any number of adjustable dog trackway sections, each independently adjustable, so that difierent parts of the working stretch of the chain may receive different adjustments.

As the gillbars move through the upper stretch, with the working arms of their dogs trailing through the working stretch of the trackway groove 26 and determining the angle of rake of the pins, the auxiliary arms of the dogs are in upright position and idle. Near the delivery bend, above referred to, the trackway 26 turns slightly downwardly and coincidently with such turning, the auxiliary arms run into the flared entrance of the beginning of the auxiliary trackway 27, which is so disposed with reference to the chain guideway rail 9 and carrier wheel 12 as to maintain the angle of the pins in an upright or slightly reversely inclined position and as the dogs round the curve their working arms are idle and move past the axis of the carrier wheels 12, in a substantially horizontal position, which position is maintained throughout the whole or the greater part of the downward stretch of the chain, so that the pins of the hackle chain are thus maintained in upright position for some distance below the delivery bend. I have discovered that this disposition of the pins after they leave the sliver operates with special eflicacy to prevent the lapping of the fiber or of fibers around and into the return stretch of the chain. The auxiliary trackway circles the lower carrier wheels 15 and thence begins to diverge somewhat from parallelism with the chain guideway, as shown in Fig. 3, so that the pins begin to be restored to or toward their former substantially perpendicular position with respect to the chain links before they leave the auxiliary trackway. At or just before the termination of the auxiliary trackway the bosses of the working arms 24: enter the working trackway 26, as indicated by the dotted lines in Fig. 3, which continues the return of the pins to their perpendicular position, in a gradual manner, so that by the time the gill-bars reach the large carrier wheels 17, they are fully restored and ready for operation in an upright or vertical position when they reach the entrance to the upper working stretch of the chain guideway. It is within the present invention, however, to substitute for the large single carrier-wheels 17, two, upper and lower, pairs of wheels with a straight stretch between them so that both ends of the chain guideway will be of the same shape. This will be merely a duplication of the construction already described at the delivery end of the machine, and the operatic-11 of the pins at one end will of course be the reverse of the other. In any case the greater part of the return stretch is devoted to the gradual returning of the gill-bars to their perpendicular position so as to avoid shock and excessive friction upon the dogs when the chain is running at high speeds. WVith the dogs at all times positively guided by their trackway grooves, as above described, such gradual change is readily accomplished.

In the operation of the hackle chain apparatus above described the power for driving the same is preferably applied at one or more separate points intermediate of the ends of the return or working stretches, as for example by means of the two driving sprocket wheels 40 and 41, the shafts of which are journaled in the present case on the legs of the frame and geared together by a sprocket chain 42, so that the power applied at the drive pulley 43 will be imparted to both of them. Such sprocket wheels are notched wheels adapted to engage the gillbars inside of the links and they are preferably of sutticient diameter to engage simultaneously the upper and lower stretches of the chain so that the latter will be pushed and pulled along at several separated points.

The fiber to be treated may be fed to the end of the working stretch of the chain or to intermediate points thereof, as for instance by means of the feed board 44 and the feeding cylinder 4-1 shown in Fig. 2, and of which there may be several distributed along the length of the working stretch and all contributing to the same. The fiber taken upon the chain is carried thereby as a sliver to the delivery bend where it is transmitted to the belt 45 of an ordinary apron delivery head not necessary to be shown in detail. The closeness of the nip, which the apron belts are enabled to have, by reason of the constructions above described, permits them to exert any desired degree of draft upon the sliver and the latter passes into the belts without tendency of the individual fibers to fold back upon themselves.

As a modification of the rake-controlling means above described, the arrangement of dog trackway shown in Fig. 14 may be used in cases where in a given machine, only two predetermined degrees of rake are required, for instance, one for use with manila and another for use with sisal hemp. In such cases the provision of two separate dog trackways, one for the less and the other for the greater rake will be more economical in construction than the controlling means above described and equally serviceable under fixed conditions. As shown in Fig. 14, the dog trackway 50, corresponding to the trackway 26 in the figures first described, is divided at the point in the circuit of the chain where the different rakes are required to become effective, branching into two separate and parallel trackways or grooves, 51

and 52, of different elevations.

The lower of said grooves will determine the lesser rake of the gill-bars and the upper the greater. The boss hearings on the ends of the dog arms are guided into the one or the other groove by means of a switch point 53, which is pivoted to the end of the rib 5-l intervening between the two grooves and moved into one position or the other, as indicated by the dotted lines, by any suitable means, quite in the same way as a railroad switch point is moved and operates.

I claim 1. Hackle-chain apparatus comprising a chain guideway, and main and auxiliary dog trackways together forming dog-guiding means co-extensive with the circuit of the chain guideway, in combination with a hackle-chain consisting of a series of parallel gill-bars rotatably mounted in and joining two parallel series of connected links, the joints whereof are independent of said gill-bars, and dogs on the gill-bars having arms adapted to follow said main and auxiliary trackways, and means for driving said chain through the said guideway.

2. Hackle-chain apparatus comprising a frame on which are provided a chain guideway and independent main and auxiliary dog trackways, the latter overlapping each other at the delivery bend of the chain guideway and together forming continuous dog-guiding means co-extensive with the circuit of the chain, in combination with a hackle-chain having dogs provided wit-h main and auxiliary arms respectively adapted to follow said main and auxiliary trackways.

3. Hackle-chain apparatus comprising a frame having formed therein a chain guide- Way with bends each approximating a right angle at one end of its circuit and having a substantially straight stretch between the bends, main and auxiliary dog trackways overlapping each other in the region of one of said bends and together forming a continuous dog-guiding means extending around both of said bends, in combination with a hackle-chain for said chain guideway having dogs with main and auxiliary arms respectively adapted to follow said main and auxiliary trackways.

l. Hackle-chain apparatus comprising parts forming a chain guideway having bends approximating a right angle at one end of its circuit and a substantially straight stretch between and connecting said bends, carrier-wheels at both of said bends and a hackle-chain running in said guideway and over said carrier-wheels, in combination with dog trackways adjacent to said vertical stretch and extending around each of said bends.

5. Hackle-chain apparatus comprising a chain guide-way formed to provide an upper, substantially horizontal, working stretch leading into a substantially vertical straight stretch, which latter leads to a substantially horizontal return stretch, a hacklechain running in said guideway and carrierwheels adapted to conduct the same from the upper stretch into the vertical and from the vertical into the lower stretch, in combination with dogs on the chain bars and trackway grooves for guiding the dogs around each carrierwheel and through the vertical stretch.

6. Hackle-chain apparatus comprising parts forming a chain guideway having upper and lower substantially horizontal stretches, a hackle-chain running in said guideway and composed of gill-bars mounted rotatably in two parallel series of connected chain links, dogs on said gill-bars for maintaining the same in upright position as they leavethe upper stretch, in combination with trackways for guiding said dogs, said trackways having a portion co-extensive with the lower stretch of the chain guideway and at an angle thereto adapted to rotate said gill-bars in their links while the same are passing through the said lower stretch.

7. In hackle-chain apparatus, a chain guideway and a hackle-chain running therein formed of a series of parallel gill-bars rotatably mounted in and joining two parallel series of connected chain links, dogs on the gill-bars thereof having working arms extended obliquely to the axes of the gill-bars, in combination with grooves for receiving and guiding the ends of said arms.

8. In hackle-chain apparatus, a hacklechain comprised of a series of gill-bars'rotatably mounted in and joining two parallel series of connected chain links, the joints whereof are independent of the gill-bars, and having dogs formed of hub portions secured to the ends of the bars and arms extending from said hub portions obliquely to 10. In hackle-chain apparatus, a hackle chain comprising a series of parallel gillbars rotatably mounted 1n and olning two parallel series of connected chain links, a

guideway for said chain having upper and lower substantially horizontal stretches, and an intervening straight stretch, in combination with dogs on said gill-bars having obliquely extending and successively overlapping arms, and trackway grooves'for re- 'ceiving and guiding said arms adapted to maintain the angle of the gill-bars when passing the bend between the upper stretch and the said intervening straight stretch.

11. In hackle-chain apparatus, a hacklechain composed of gill-bars with dogs at their ends, a guideway for the gill-bars, and side plates exterior of the guideway supporting trackway grooves for the dogs, in combination with carrier-wheels at the end of a stretch of the guideway, and means of support for the said carrier-wheels disposed within the side-plates and providing a space between said side plates and guideways for the passage of the said dogs.

12. In hackle-chain apparatus, a hacklechain composed of gillbars with dogs having working arms, guideways for the ends of the gill-bars and trackway grooves exterior of the guideways for engaging the said arms, in combination with a carrier- I wheel of less radius than the dog arms, lo-

cated at the end of a stretch of the guideway for conducting the gill-bars around the bend thereat, the said guideway and .grooves being arranged to maintain an upright angle of the gill-bar pins as they move through said bend.

13. In hackling apparatus a series of gillbars with dogs at their ends provided with obliquely extending working arms, a guideway for the gill-bars and side plates eX- terior of the guideway supporting trackway grooves for guiding the saidarms, 1n combination wlth carrier-wheels at the end of a stretch of said guideway, and means of support for said wheels disposed within the side plates and providing a space between the same and the guideway in which the arms of said dogs may intercept the axis of the carrier wheels. g

14. In hackle-chain apparatus, a series of gillbars having dogs at the ends thereof, each dog being formed with a working and an auxiliary arm, both said arms extending obliquely from the axis of its gill-bar, in combination with a guideway for the gill bars, and trackway grooves for the said oblique arms, adapted to maintain the rakeangle of the gill-bar around the bends of the said guideway therefor.

15. In hackle-chain apparatus, a dog for maintaining the rake of the hackle-pins, consisting of a hub having working and auxiliary arms radiating therefrom obliquely to the axis of the hub and at substantial right-angles to each other, and formed with bosses on the ends of the arms to form bearings therefor.

16. Hackling apparatus comprising a guideway and a dog trackway mounted independently of each other, a hackle-pin train composed of a series of gill-bars guided in said guideway and provided with dogs guided in the dog trackway, and means for varying the relation of said guideway and trackway to vary the rake of the hacklepins.

17. Hackling apparatus comprising a frame having a guideway adapted to conduct a series of gill-bars, dogs on the gillbars, and a trackway groove for guiding the dogs, a portion of said groove being movable with respect to the remainder thereof to vary the rake of the gill-bar pins.

18. Hackling apparatus comprising a series of gill-bars suitably guided and pro vided with dogs, a trackway groove for said dogs having a portion fixed to the frame of the machine and another portion movable thereon, the two said portions being connected by an intermediate flexible link section.

19. In hackling apparatus, a series of gillbars having dogs on their ends and said dogs having arms overlapping the ends of adjacent gill-bars, in combination with a guideway for the gill-bars and movable means for guiding the arms of the dogs adapted to vary the path of the latter with respect to said guideway.

20. In hackling apparatus, a hackle-chain formed of gill-bars joining two series of connected chain links and provided with dogs, arms on the dogs extending from each gill-bar and overlapping the dogs on adja cent gill-bars, in combination with separate means for guiding the gill-bars and dogs respectively and means permitting adjustment of the relative positions of such guid ing means to vary the rake of the gill-bars.

2].. In hackling apparatus, -a frame, a series of gill-bars mounted to move therein and provided with dogs at their ends, separate guiding means for said bars and dogs on each side of the frame, and a single means for simultaneously changing the relative positions of said guiding means on both sides of the frame.

22. In hackle-chain apparatus, a hacklepin chain, a guideway therefor having a carrier-wheel at the end of its working stretch, and means including dog-arms and trackways for maintaining the hackle-pins below the axis of the carrier-wheel, in positions substantially perpendicular to said working stretch.

23. In hackling apparatus, a hackle-pin train composed of a series of gill-bars and means for guiding said gill-bars through a definite path, dogs on said gill-bars and means for shifting the path of said dogs with respect to the path of said gillbars.

In testimony whereof, I have signed this specification in the presence of two witnesses.

JOHN GOOD.

Witnesses:

H. G. KIMBALL, G. A. TAYLOR.

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

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