US654055A

US654055A - Upright loom.

Info

Publication number: US654055A
Application number: US65353997A
Authority: US
Inventors: George O Draper
Original assignee: DRAPER CO
Current assignee: DRAPER CO
Priority date: 1897-09-30
Filing date: 1897-09-30
Publication date: 1900-07-17
Anticipated expiration: 1917-07-17

Description

. UPRIGHT LOUM.

(Appuatian med 'septu 30,1897

(no model.; 2 sheetg-sn'eet Tn: nofws Pirzns au., mmo'uma. wAsmnn'rou, u. c.

- Patented AJuly 17,1900.'- y .6. o. namen.

A No. 654,055.

uPmGHT Loom. (Appumon med septk 8o, V1897.5 v

2 SheetsSheet 2i (No Model.)

GEORGE O. DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO THE DRAPER COMPANY, OF SAME PLACE AND PORTLAND, MAINE.

UPRIGHT LOOM.

SPECIFICATION forming part of Letters Iatent No. 654,055, dated July 17', 1900.

Application filed September 30, 1897. Serial No. 653,539. (No model.)

To all whom, it may concern:

Beit known that I, GEORGE O. DRAPER, of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Upright Looms, of which the following description, in connection with the accompanying drawings, is a specification, like characters 011 the drawings representing like parts.

This invention relates to that class of looms in which the warp-beam is mounted at the lower portion of the frame, the warps being carried upward and the nished cloth wound upon a roll near the top of the frame.

My present invention has for its object the production of an upright loom wherein the warp-stop-motion-actuating detectors operate by gravity, whereby I am enabled to utilize this valuable feature and also the valuable features of upright looms, such as saving in floorspace and making the different mechanisms convenient of access to the weaver. In the loom herein shown the detectors also serve as heddles, the harnesses working in inclined planes at such an angle that gravity will act to move a heddle into abnormal position upon breakage or undue slackening of its warpthread; but it will be obvious that the detectors could be mounted in front or rear of the harnesses and sliding on an angle similar to that herein shown.

Various other novel features of my invention will be hereinafter described in the speciiication and particularly pointed out in the claim.

Figure l is a rear elevation of an upright loom embodying my invention, partly broken out and with some of the well-known devices omitted for the sake of clearness. Fig. 2 is a vertical sectional view thereof on the line oc so, Fig. l, looking toward the left.

The loom sides A, connected by cross-girths A', A2, A3, and A4, are of suitable shape to support the operative parts of the loom, the side frames A having at the back open bearings o; near the bottom for the journals B of the warp-beam B, the warp-threads w' being led up from the beam over the whip-roll 1V at the back of the loom to the usual leaserods L, Fig. 2, and thence over guide-rods 2 3, which permit the Warps to turn at a slight angle before passing to the harnesses. The

warp-threads pass through the heddles, to be described, through the reed R of the lay RX, and over the take-up roll C and around a guide-roll C to the core or bar C', on which the finished cloth is wound, the said core being mounted in suitable bearings a2 in the side frames.

Inasmuch as the take-up mechanism forms no part of my invention and can 'be of any desired or well-known form, I have omitted the same for the sake of clearness in the drawings.

The lay-actuating devices may be of either the swinging or sliding type, both well known and not herein illustrated, nor is the picking mechanism shown for the same reason, the lay moving in an inclined path substantially at right angles to the plane of the harness-frame and in front of the latter, as clearly shown in Fig. 2.

Brackets d, secured to the inner faces of the loom sides A, are provided with bearings d for the side bars f g of the heddle or harness frames, said bearings and bars being inclined to the horizontal, as best shown in Fig. 2, the side bars of the rear frame being shown as resting on and adapted to slide upon the bars f and being guided thereby. The upper ends of the side barsfare supported by an inclined rest (ZX, extended across the loom. Cross-bars f g and f2 g2 rigidly connect the two pairs of side bars f g, respectively, at their upper and lower ends, to thereby form rigid rectangular frames, the side bars being of sufficient size to afford good bearing-surfaces.

At each side-of the loom pulleys h are rotatably mounted, to which pulleys the harness or heddle frames are connected at ltheir lower ends by flexible straps or connections fx gx, so that the movement of one frame effects a movement of the other in the opposite direction.

The lower cross-bars are herein shown as connected to extensions 8 9 of the side bars fg, owing to the proximity of the pulleys to the latter,the extensions coming at the inner sides of the pulleys.

Referring to Fig. 2, treadles f3 g3 are ful'- crumed on the cross-girth A3 of the frame, said treadles being connected by links or bars f4 g4 with the two harness-frames, said treadles being shown as provided with rolls IOO f5 g5, respectively, which travel upon the edges of the harness-cams F G, mounted on the cam-shaft C of the loom. Ordinarily the harness-motion in looms is controlled by treadles provided with rolls which travel on thelunder portions of the cams, so that the frames are pulled down' alternately. In my present invention, however, the cams push the treadles alternately, so that the harness.- frames arel positively pushed upward and depressed by the iiexible connections attached to the pulleys 7i to give the necessary reciprocating motion. This arrangement of the cams and treadles imparts a steadier and more positive movement to the harness-frames 'and economizes space, permitting more room for thewarp-beam than is obtainable in the ordinary loom.

Referring to Fig. 1, the usual fast and loose pulleys P P are shown, with the belt-shipper SX, controlled by the shipper-lever S, of usual y construction, located at the back of the loom,

held in the usual notched plate N when the loom isrunning properly. Thelower end of said lever is adapted to be engaged by a knock-0E arm m', fast on a rock-shaft m, which has a second arm m2, connected, by a pin-and-slot connection 5 6, Fig. 2, with an actuating-arm m3. The said actuating-arm is fulcrumed at m on a forked leg n, adapted to straddle a roll ax on the cam-shaft C10, the leg depending from a rocker-arm n', on which it is` pivoted at n2, the arm being fast on a rock-shaft n3, mounted in bearings d10, shown herein as secured to the brackets CZ.

Referring to Fig. 2, the actuating-arm m8 is shown as havinga toe m4 near its fulcrum,

, adapted to be engaged by a suitable tappetcam M on the camshaft whenever the leg n is lifted and maintained high enough to bring the toe into the path of the tappet. Such engagement acts to depress the actuating-arm, ,to thereby actuate the knock-olf arm m and release the shipper-lever S from the usual notch in the holding-plateN, to thereby stop the loom. A camNl" on the shaft C10 acts on a roll or stud n4, extended froln the leg n, to lift the latter twice at every rotation of the cam-shaft, to thereby rock the shaft n3, to which is attached a feeler filo, which is thus vibrated back and forth below the front harnessframe. A similar feeler g2@ is mounted below the rear frame on a suitably-supported rock-shaft 15, the two feelers being vibrated in` opposite directions by intermeshing segment-gears 18 19 on the two rock-shafts. I have herein shown three plates (Z7 d8 d eX- tended in parallelism from one 'to the other bearing CZ', said plates forming guides for the lower ends of the two sets of detectors f12 g, which` also act as heddles, the detectors being made of thin sheet metal, provided each witha warp-receiving eye and an elongated slot at the upper end. The cross-bars f g extend through the slots in the respective sets of detectors, and in the reciprocation of the harnessframes act to move the detectors, the

latter by reason of the length of the slots having a limited longitudinal movement independent of the frames. When a frame descends, the warp-threads normally maintain the lower ends of the detectors above the path of the coperatin g feeler but upon breakage or undue slackness of' a warp-thread" its detector slides down by gravity far enough to v engage and` stop its feeler, resulting in maintaining the leg n lifted, with consequent stoppage of the loom. The middle plate d8 acts to separate the lower ends of the two series of detectors f Q12, while the outer plates act to support' and retain the detectors from improper movement. The angle of the harnessframes is such that when a warp-thread breaks or unduly slackensits detector will slide down by gravity into abnormal position. The use v of such detectors, the cooperating feelers, and

the feeler-actuating means forming a part of the stopping mechanism of theloom are not broadly claimed herein, as I am not theinf ventor of such devices broadly; but so faras I am aware it is new to utilize in an upright loom warp-stop-motion-actuating detectors which do not drop vertically into abnormal position, but which slide on an incline into such position.

From an inspection mechanism is located entirely below the path` of the warp-threads and also that the warp.

beam and the pivots for the harness-actuatin g treadles are located at opposite sides of the harness-frames, so that a great economy is 'of the drawings it win be seen that the harness-motion-actuating- IOO elfected in the necessary space for the operating parts of the loom.

The warp-stop-motion-actuating detectors and the shipper-lever are located back of the lay and the weaving mechanism is wholly above the warp-beam, the latter, even when very large, lying entirely withinthe mainportion of the loom.

By means of the rests or guides for the warp- IIO threads the latter, while given the proper dif Y name to this specification in the presence of two subscribing witnesses.

GEORGE O, DRAPER. lVitnesses:

HERBERT S. MANLEY, E. D. BANCROFT.