US253806A - Machine - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

A. WOODMAN. CLOTH TENTERING, DRYING, AND CALENDERING MACHINE. No. 253.806. I Patented Feb.14,1882.

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WITNESSES: INVENTOR:

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N. PETERS. PhoQfl-Lilhogmphcr. Washmglon. D. C.

2 Sheets-Sheet 2.

(No Model.) A. WOODMAN.

CLOTH TENTBRING, DRYING, AND UALENDERING MACHINE.

Patented Feb. 14,

2 m Y T B N N E R V O T N T T. A JN 1 MI Q J M u o t. N N fl M a W M I .6 I h I 1 LT F u WITNESSES N4 PETERS. Plwwmhn ra hm. Washinglon. D. c.

ALVIN VVOODMAN, OF LEWISTON, MAINE, ASSIGN OR TO HIMSELF AND CYRUS I. BARKER, OF SAME PLACE.

CLOTH TENTERING, DRYING, AND CALENDERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 253,806, dated February 14, 1882. Application filed March 14, 1881. (No model.)

To all whom it may concern:

Be it known that I, ALVIN WOODMAN, of Lewiston, in the county of Androscoggin and State of Maine, have invented a new and useful Improvement in Cloth Tentering, Drying, and Oalendering Machines, of which the fol; lowing is a full, clear, and exact description.

My improvements relate to machines used for drying, tentering, and calendering woven gitudinal section of a tentering, drying, and

calendering machine containing my improvements. Fig. 2 is a vertical transverse section of the same on line 00 w of Fig. 1. Fig. 3 is a partial plan view, showing the straighteningrolls. Fig. 4 is a face view of the straigh tening-rolls. Fig. 5 is a section 011 line 3 y of Fig. 3. Fig. 6 isa detail sectional View. Fig. 7 is a detail of ,a modification; and Fig.8 is a plan view of the machine, with some of the parts omitted or broken away, showing principally the tentering mechanism and a modified form of driving-gear.

Similar letters of reference indicate correspending parts.

The frameA of the machine is of usual character. At the feeding end is placed a roll, a, which carries the cloth.

b is the spreader. c is the size-box. (Z (Z are squeezing-rolls. c c are carrierrolls by which the cloth is held to the surface of cylinders e, the latter revolved by the friction of the cloth. These parts are as usual, except the spreader Z1, which consists of two semicircular bars, 6 of metal or other suitable material, attached to end pieces, I), that are pivoted in suitable bearings, so that the bars are held parallel and may turn with the end pieces, I).

A ratchet-wheel, 0 (shown in Figs. 1 and 8,) is fitted to one pivot of the spreader, and is engaged by a pawl, (1 for retaining the spreaderin position. This allows adjustment, so that the cloth will bear upon more or less of the surface of the bars b thereby varying the friction, as the case may require. The spreader-bars are fluted diagonally from the center outward.

From the cylinders to the straightening mechanism at the other end of the frame two endless chains, B, are provided for carrying the cloth. The chains consist of flat links jointed together, and are carried by 'chain- 5 wheels 9, that are hung at the sides of the machine. The links have spurs or points, as shown, for catching the edges oi the cloth, and they are formed with slots for engagement with the teeth of chain-wheels 9. There are revolving brushes h fitted above the chains for pressing the cloth upon the pins. These are placed at the point where the cloth and chain come together in contact with the face of the links.

The chains B are supported on tracks or guide-strips k, that rest on brackets 70, secured to the side rails of the machine, as shown clearly in Fig. 2. The guide-strips 7c are grooved to receive the chains, and are constructed in two sections at each side, the first section at each side extending obliquely outward from the feed end, and the second sections extending parallel, so that the cloth -is first widened gradually andthen retained at the full width.

For adjustment of the guides and tracks I provide screw-shafts Z, which are sustained by the siderails of the machine beneath and across the strips 70 and carry nuts 1 Z, which are connected to the guide-tracks. The shafts have right-and-left-handed screws, and are fitted with hand-wheels l for their operation. There are three of these screw-shafts, one at the feed ends of the tracks, one at the delivery end, and a third at the inner ends orjunction of the 5 two sections, fitted to move those ends of both sections at each side. The shaft at the feed end is for adjustment of the narrower end of the track. The shaft at the delivery end carries a bevel-pinion, engaging with a similar pinion on a shaft, 1 that extends to and is geared with the middle shaft, 1. This allows simultaneous adjustment of both ends of the parallel tracks and the wider ends of the diagonal tracks at one operation.

In Fig. 1 I have shown the chain-wheelsdriven by pulleys g and belts g roll to being also driven by a belt, from pulley 9 but I shall also use the means shown in Fig. 8, and also partly shown in Fig. 7, where the chain-wheels are loosely mounted on long sleeve-nuts that are carried by the shaft 1 at the delivery end of the machine. An arm, 1*, attached to the nut 1, passes to the guide 7r, whereby the guide and wheel are adjusted simultaneously by turning the shaft. The chain-wheel g atthe delivery end is formed with a gear-wheel, l, which is adapted to mesh with a bevel-pinion, Z, on a shaft, 1 by which power is communicated to the chain-wheels.

The shaft 1 should be made laterally adjustable to accommodate the adjustment of the guide 70 and the wheel 1 It is designed that each chain-wheel at the delivery end of the machine shall be driven in like manner.

There are steam pipes or coils 1' arranged be low the tracks and connected with a steamgenerator for drying the cloth while it is being carried forward, or fans 0 may be used for ere ating a current of air to effect the drying.

At the delivery end of the machine are the drying-cylinders 0 o, calender-ingrolls S S, and cloth-winding rollers 10, as usual. Between the cylinderso and the ends of chains B is fitted the mechanism for straightening the figure of the cloth, as next described.

m m are the first guide-rollers, sustained at their ends in fixed brackets, the bottom of roller on being level with the tracks and roller m elevated.

at n are guide-rolls hung on side arms, n that are pivoted at the lower part of frame A. A screw, 12, fitted at each side of the machine and tapped into the arm a serves for adjustment of the arm and rollers n n to and from rollers n m. Roller n is level, or nearly so, with roller m while roller n is lower and retains the cloth against the first cylinder 0.

Between the guide-rollers m a are numerous short rollers, 'r, placed as closely together as may be across the machine. These are carried in the forked outer ends of flexible or jointed arms r, sustained by a cross rod or bar,

s, that is held at its'ends in brackets. Springs 20! tend to raise the arms 0', and screws t, tapped in a cross-bar, I, serve for holding the arms down as adjusted. These parts are shown most clearly in Figs. 3 and 5. With this construction the rollers r are held always in one vertical plane transversely of the machine, while being capable of adjustment vertically, as illustrated in Fig. 4.

In operation the cloth passes from the chains beneath roller m, then beneath and over roller m, beneath rollers 1*, over roller n, and be neath roller n to the steam-cylinders. The guiderollersnn act to bring the plaid or stripe on the cloth into position at right angles with the side of the cloth, in case it has been thrown out by the tentering previously. This is accomplished by adjusting the arm n to throw forward the ends of rollers n n at the side of the machine, where the stripe or plaid needs to be brought up. The rollers 1" act to straighten the plaids or stripes, it required. If the stripes are straight when they reach rollers 1', such rollers should then be set on a horizontal line, either in or out of contact with the cloth; but if the stripes or plaids are curved, or otherwise out of a straight line, the rollers, 0' will be set so that those at the ends bear on the cloth and the middle rollers free, or the reverse, as is required to straighten the figures.

The two sets of adjustable rollers n n and 1' thus act, the first to bring the edges of the cloth up and the second to straighten the cloth between the edges, and the cloth is delivered to the calendering-rolls with the figure 0 correct, as designed.

A single flexible roll. may be used in place of the rollers r. I do not limit myself in that respect, nor in the particular details of construction otherwise.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combinatl0n,wltl1 roll a,of the spreader, consisting essentially of bars b diagonally roo fluted in opposite directions from the middle, and pivoted end pieces, b, provided with a ratchet-wheel, c and pawl (1 substantiallyas and for the purposes described.

2. The combination, with the wheels g, end- 1 less chains B,and tracks lc,of the screw-shafts 1, nuts I, shaft Z and its gearings, and mechanism for driving the wheels g, substantially as shown and described.

3. The combination, with the cylinders 0 and 11 o rollers r, of the rollers n n, winding-drum w, and the pulleys g and belts g, substantially as shown and described.

4;. The combination of rollers r and mechanism for their vertical adjustment, with rollers 1 15 m a, substantially as and for the purposes specified.

5. The combination, with the guide-rollers n n, the rollers r, and lined guide-rollers m m, of mechanism for adjusting the rollers an horizontally and rollers 1' vertically, as and for the purposes set forth.

6. The combination of arms 1", spring w, adjusting-screws t, rollers r, guide-rollersn n and m m, poses specified.

Witnesses:

M. T. LUDDEN, F. M. DREW.

ALVIN \VOODMAN.

substantially as and for the pur-

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