Part 4

The following table may be used in calculating the required Laps per Inch on Bobbin for any given hank roving:

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1 hank or below, 7.5 x square root of hank = Laps per Inch

1 hank to 2 hanks, 8.5 x square root of hank = Laps per Inch

2 hanks to 3 hanks, 9.5 x square root of hank = Laps per Inch

3 hanks to 4 hanks, 10.0 x square root of hank = Laps per Inch

4 hanks and above, 10.5 x square root of hank = Laps per Inch

Good results are obtained by using 9.3 x square root of hank. TAPER AND TENSION CALCULATIONS.

It is difficult to give hard and fast rules for figuring the Taper and Tension Gears, as the required number of teeth on these gears is affected by the kind of stock, length of staple, amount of twist, temperature and humidity.

PRODUCTION CALCULATIONS.

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SLUBBING, INTERMEDIATE, ROVING AND JACK FRAMES.

DRAFT TABLES.

NOTE-The above is for front and back rolls the same dia.

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SLUBBING, INTERMEDIATE, ROVING AND JACK FRAMES.

KEY TO TWIST TABLES.

(See pages 132 and 133 for complete Twist Tables.)

Combinations Nos. 1, 2, 3 and 4 are for Slubbing and Intermediate Frames with 1-1/4-inch dia. Front Roll. Combinations Nos. 5, 6, 7, 8 and 9 are for Roving and Jack Frames with 1-1/4-inch dia. Front Roll. Combinations Nos. 10, 11, 12, 13 and 14 are for Roving and Jack Frames with 1-1/8-inch dia. Front Roll.

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SLUBBING, INTERMEDIATE, ROVING AND JACK FRAMES--TWIST TABLES.

(See page 131 for key to these tables.)

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SLUBBING, INTERMEDIATE, ROVING AND JACK FRAMES-TWIST TABLES.

(See page 131 for key to these tables.)

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SLUBBING, INTERMEDIATE, ROVING AND JACK FRAMES.

LAY GEARING AND CONSTANTS.

There are two change gears in the lay combination, the Reversing Shaft Change Gear Z2 and the Lay Change Gear W1. Although we have given the full list of Lay Gearing in the above table, only the gears marked * are variable, the others being the same for all frames. The regular change gear is W1 and the table on the next page gives lay constants for a range of Reversing Shaft Change Gears Z2 from 14 to 22 inclusive. To find the correct lay constant select the proper {135} Lay Gearing Combination from the nine given above, note the number of teeth on the Reversing Shaft Change Gear Z2 and take the constant which corresponds in the table below. For example, the lay constant for a frame with gearing like No.4 combination and a 16 T. Reversing Shaft Change Gear is 437.9. This divided by the number of teeth on the Lay Change Gear W1 will give the laps per inch on the bobbin.

TABLE OF LAY CONSTANTS FOR GEARING COMBINATIONS No.1, No.9 AND REVERSING SHAFT CHANGE GEARS 14 TO 22 T.

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ROVING TABLE.

FOR NUMBERING BY THE WEIGHT, IN GRAINS, OF 12 YARDS; AND SHOWING TWIST PER INCH.

(Square Root X 1. 20)

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ROVING TABLE--CONTINUED.

FOR NUMBERING BY THE WEIGHT, IN GRAINS, OF 12 YARDS; AND SHOWING TWIST PER INCH

(Square Root X 1.20)

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We make 36-in. or 39-in. framing as required. When extra large diameter roving bobbins are used and the creels are required to take double roving, the 39-in. framing is needed to obtain enough space in the creels.

To ascertain the length of Spinning Frames with any number of spindles: Multiply one-half the number of spindles by the gauge and add 2 ft. 1 in. for head and off ends.

Although it is advantageous when possible to keep to the number of spindles given in the table on the opposite page, other lengths can be built, but even boxes are preferable.

DRIVING PULLEYS are 8 in. to 18 in. dia., 3-1/4 in. face.

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LENGTHS OVER ALL OF RING SPINNING FRAMES.

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PRODUCTION TABLE OF RING WARP YARN.

FRONT ROLL, 1 IN. DIA.

Allowance has been made for doffing, etc. Standard Warp Twist used, 4.75 x square root of number of yarn.

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PRODUCTION TABLE OF RING WARP YARN.

FRONT ROLL, 1 IN. DIA.

Allowance has been made for doffing, etc. Twist per inch, 4.75 x square root of number up to 40s. For 40s and finer the twist per inch is graduated from 4.60 to 4.00 x square root of number.

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PRODUCTION TABLE OF RING FILLING YARN.

FRONT ROLL, 1 IN. DIA.

Allowance has been made for doffing, etc. Filling Twist used, 3.25 x square root of number of yarn.

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PRODUCTION TABLE OF RING FILLING YARN.

FRONT ROLL, 1 IN. DIA.

Allowance has been made for doffing, etc. Filling Twist used, 3.25 x square root of number of yarn.

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When figuring the Ratio of Whirl Speed to Cylinder Speed we add 1/3 inch to the diameters to allow for the band.

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In our production tables on pages 156 to 159, the allowance for doffing, waste, etc., varies with the numbers of yarn, the percentage loss being greater for coarse than fine work.

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RING SPINNING FRAME, DRAFT TABLE.

FRONT ROLL 1 IN. DIAM. BACK ROLL 7/8 IN. DIAM.

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RING SPINNING FRAME, DRAFT TABLE.

FRONT AND BACK ROLLS SAME DIAMETER.

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RING SPINNING FRAME, TWIST CONSTANTS.

1 IN. DIA. FRONT ROLL. 7 IN. DIA. CYLINDER.

FRONT ROLL GEAR, 84 T.

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RING SPINNING FRAME, TWIST CONSTANTS.

1-1/16 IN. DIA. FRONT ROLL. 7 IN. DIA. CYLINDER.

FRONT ROLL GEAR, 84 T.

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RING SPINNING FRAME, TWIST CONSTANTS.

1-1/8 IN. DIA. FRONT ROLL. 7 IN. DIA. CYLINDER.

FRONT ROLL GEAR, 84 T.

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RING SPINNING FRAME TWIST TABLE.

1 IN. DIA. FRONT ROLL. 7 IN. DIA. CYLINDER.

FRONT ROLL GEAR, 84 T.

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RING SPINNING FRAME TWIST TABLE.

1 IN. DIA. FRONT ROLL. 7 IN. DIA. CYLINDER.

FRONT ROLL GEAR, 84 T.

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RING SPINNING FRAME TWIST TABLE.

1 IN. DIA. FRONT ROLL. 7 IN. DIA. CYLINDER.

FRONT ROLL GEAR, 84 T.

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RING SPINNING FRAME TWIST TABLE.

1 IN. DIA. FRONT ROLL. 7 IN. DIA. CYLINDER.

FRONT ROLL GEAR, 84 T.

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RING SPINNING FRAME TWIST TABLE.

1-1/16 IN. DIA. FRONT ROLL. 7 IN. DIA. CYLINDER. FRONT ROLL GEAR, 84 T.

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YARN TWIST TABLES.

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YARN TWIST TABLES.

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YARN TWIST TABLES.

NOTE--The above tables are extended in some cases much beyond the actual requirements as indicated by their headings, but will prove useful for other yarns.

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TABLE FOR NUMBERING COTTON YARN BY THE WEIGHT IN GRAINS OF 120 YARDS OR 1 SKEIN

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TABLE FOR NUMBERING COTTON YARN-Cont'd.

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TABLE FOR NUMBERING COTTON YARN-Cont'd.

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TABLE FOR NUMBERING COTTON YARN-Cont'd.

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TABLE FOR NUMBERING COTTON YARN-Cont'd.

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DRAPER TABLES OF BREAKING WEIGHTS OF AMERICAN YARNS SPUN FROM AMERICAN COTTON. AVERAGED FROM SAMPLE SKEIN TESTS FROM SEVERAL HUNDRED AMERICAN MILLS.

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TRAVELLER TABLE FOR RING SPINNING FRAME.

The speed, kind of cotton, etc., affect the weight of traveller, and consequently it is impossible to make up a table to cover all conditions, but the sizes given above will serve as a basis to select from. Lighter travellers should be used for higher speeds and vice versa. Each 1,000 revolutions of spindle makes a difference of one or two numbers in travellers.

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SPOOLERS.

The following tables of dimensions and productions are given as information:

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REELS.

Reels are usually made with 50 or 60 spindles each, but can be made either longer or shorter. The common gauge is 3-1/2 in., the length of which with 50 spindles is 16 ft. 8-1/2 in. and width 3 ft. 9 in. Machines are made for 54-in., 60-in., 72-in. and 90-in. skeins, usually 54 in.

Driving pulleys are 12 in. x 2 in.

The usual speed with 54-in. swifts is 130 revs. We give below production table for 54-in. skeins.

50 per cent. allowance has been made in above table for doffing, etc.

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TABLE SHOWING GAUGES, RINGS AND SPINDLE SPEEDS FOR VARIOUS NUMBERS AND PLYS.

THIS TABLE FORMS A KEY TO THE PRODUCTION TABLES WHICH FOLLOW

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TABLE SHOWING GAUGES, RINGS AND SPINDLE SPEEDS--CONT'D.

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TABLE SHOWING NUMBER OF POUNDS TWISTED YARN PRODUCED IN 10 HOURS-2 PLY

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TABLE SHOWING NUMBER OF POUNDS TWISTED YARN PRODUCED IN 10 HOURS-3 PLY.

Allowance has been made for doffing, waste, cleaning, etc.

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TABLE SHOWING NUMBER OF POUNDS TWISTED YARN PRODUCED IN 10 HOURS-4 PLY.

Allowance has been made for doffing, waste, cleaning, etc.

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TABLE SHOWING NUMBER OF POUNDS TWISTED YARN PRODUCED IN 10 HOURS-5 PLY.

Allowance has been made for doffing, waste, cleaning, etc.

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TABLE SHOWING NUMBER OF POUNDS TWISTED YARN PRODUCED IN 10 HOURS--6 PLY.

Allowance has been made for doffing, waste, cleaning, etc.

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