Modern Cotton Spinning Machinery, Its Principles and Construction

by Joseph Nasmith

PRODUCTION OF RING SPINNING FRAMES FROM ACTUAL TESTS. MESSRS. HOWARD AND BULLOUGH’S MACHINES. RABBETH SPINDLES.

Counts of Yarn to be Spun.	Speed of Spindle per Minute.	Speed of Front Roller per Minute.	Diameter of Front Roller.	Turns per inch of Twist.
10’s	6,020	158	1	12·12
16’s	6,800	1331⁄2	1	16·21
20’s	7,300	132	1	17·60
24’s	7,500	130	1	18·36
28’s	7,500	1161⁄2	1	20·49
30’s	7,500	119	1	20·00
32’s	7,500	1111⁄2	1	21·41
34’s	7,500	107	1	22·31
36’s	7,500	101	1	23·63
38’s	7,500	97	1	24·50
40’s	7,500	941⁄2	1	25·25
Counts of Yarn to be Spun.	Diameter of Ring.	Number of Traveller. U. S. Standard.	Production per spindle per week of 561⁄2 hours.
			In Pounds. lbs. ozs.	In Hanks.
10’s	13⁄4	7’s or 6’s	5 4	521⁄2
16’s	13⁄4	4’s or 3’s	2 12	44
20’s	13⁄4	2’s or 1’s	2 21⁄2	431⁄2
24’s	13⁄4	1/0 or 2/0	1 121⁄4	421⁄2
28’s	11⁄2	2/0 or 3/0	1 53⁄4	38
30’s	11⁄2	3/0 or 4/0	1 43⁄4	39
32’s	11⁄2	4/0 or 5/0	1 21⁄2	37
34’s	11⁄2	5/0 or 6/0	1 0	341⁄2
36’s	11⁄2	6/0 or 7/0	141⁄2	33
38’s	11⁄2	7/0 or 8/0	131⁄4	311⁄2
40’s	11⁄2	8/0 or 9/0	12	301⁄2

Note.—With elastic spindles an increase of production occurs of about 20 per cent.

Table 5.

POWER TESTS OF RING SPINNING MACHINES MADE AT THE DWIGHT MANUFACTURING CO., CHICOPEE, U.S.A., APRIL, 1885, BY MR. H. S. CHASE.

Date.	Time.	Make of Frame.	Spindle.	No. of Spindles.	Counts.
April 9th	2-0 to 5-30 (3 tests)	Lowell Spinning	Rabbeth	192	28’s
„ 10th	10-30 to 11-30	Do.	Do.	192	28’s
„ 11th	8-15 to 11-30	Do.	Common 11 oz.	208	21’s
„ 13th	9-0 to 2-30	Biddeford Spinning	Sawyer	144	21’s
Date.	Time.	Condition.	Spindle Speeds.	H.P. required for Frame.	No. of Spindles per H.P.
April 9th	2-0 to 5-30 (3 tests)	Bobbins from 1⁄2 full doffed to 1⁄2 full again.	7439	1·5915	120·7
„ 10th	10-30 to 11-30	Bobbins 1⁄2 full till full.	7324	1·5094	127·2
„ 11th	8-15 to 11-30	Mean of 11 tests Bobbins empty, running an hour.	6409·5	2·4930	83·4
„ 13th	9-0 to 2-30	Bobbins 2⁄3 full till doffed and filling again.	7184·5	1·2565	114·9

Table 6.

TESTS MADE AT LONSDALE, RHODE ISLAND, U.S.A., BY MR. W. S. SOUTHWORTH, NOW SUPERINTENDENT OF THE MASSACHUSETTS COTTON MILLS. SAWYER SPINDLES.

REVOLUTIONS PER MINUTE.		POWER FOOT POUNDS PER SECOND PER SPINDLE.			Number of Spindles to One Horse Power.
Front Rollers	Spindles.	Empty Bobbins.	Full Bobbins.	Mean.
59·2	5,408	3·140	3·675	3·407	161·4
63·95	5,842	3·536	4·139	3·837	143·3
69·9	6,386	4·025	4·933	4·479	122·8
75·85	6,929	4·659	5·655	5·157	106·7
82·5	7,539	5·338	6·537	5·937	92·6
88·9	8,124	6·034	7·331	6·682	82·3
97·95	8,948	7·009	8·419	7·714	71·3