Class 51

For Barring and Tacking, Sewing on Buckles, etc. Operated by Mechanical Power.-Automatic Stop.

THE Machines of Class 51, for operation at high speed by mechanical power, are our latest devices for barring and tacking on leather or cloth.

For barring buttonholes, tacking shoes, clothing, etc., these machines excel all others, both in quantity and quality of work. They are sold outright, no royalty being charged for their use.

The machines have an iron base, as illustrated on the opposite page, thus raising the face of the bed 4 inches above the table, upon which the machine stands with its end towards the operator.

'These machines have been tested by practical factory operation in the manufacture of Clothing, Button Laps, Oxfords and Lace Shoes, upon which their work is pre-eminently satisfactory.

The bar or tack is composed of a fixed number of long stitches, the length of which is adjustable, and is covered by a fixed number of short cross-stitches. As the length of the long stitch is diminished, the short stitches are brought more closely together.

The fabric is clamped and the machine is started simultaneously by foot pressure on a treadle; it stops automatically at the completion of each tack, and the clamp is immediately released.

The varieties of this class differ in the following particulars:

Machine No. 51-1, adapted for work on either leather or cloth, is for barring only, and especially for barring buttonholes. It makes six long lock- stitches, the length of which can be adjusted as desired up to one-quarter inch. These long stitches are covered by 10 cross-stitches.

The ends of the buttonhole are automatically pinched and fastened together so that the bar not only strengthens and binds, but forms a handsome finish that excels hand work in tenacity and durability.

Machine No. 51-2 is for both barring and tacking. 'The six long stitches can be made of any length, up to three-eighths of an inch, and are covered by 12 cross-stitches.

Machine No. 51-3 makes a tack of any length, not exceeding seven- sixteenths of an inch, which is composed of 10 long stitches and 24 cross-stitches. Machine No. 51-4, for leather, makes a tack of any length, not exceeding three-eighths of an inch, which is composed of S long stitches and & cross-stitches in centre of tack.

Machine No. 51-5 makes a tack up to five-eighths of an inch in length, which is composed of 10 long stitches and 24 cross-stitches. It is used for general tacking in Clothing, etc., in stitching the ends of tapes on underwear, etc.

Machine No. 51-6, for barring Buttonholes, makes six stitches the length of which is adjustable from one-eighth to one-quarter of an inch; these long stitches are covered with twelve narrow cross-stitches, the whole comprising a beautiful and substantial bar.

Machine No. 51-10 is for tacking in Clothing manufacture; the length of tack is adjustable from three-eighths to five-eighths of an inch; it consists of 11 long stitches, which are covered with 34 cross-stitches

SEWING ON BUCKLES.

Machine No. 51-15 is especially designed for sewing buckles onto cloth or leather.The presser-foot lifts and drops by action of the operator's foot on a treadle; it clamps the buckle around the shank of the tongue and the cross- bar so that it can be used on buckles of various shapes and sizes and hold them in proper position while being stitched. The fastening is composed of 35 stitches which are carried from one end of the cross-bar to the other as shown in the following photographic illustration of the work; in the passage of the stitch around the shank of the tongue it is carried in the goods, so that the tongue swings freely. This is, by far, the most convenient, effective and economical method yet devised for attaching buckles to Overgaiters, Clothing, etc.

The following is lifted from John Langdon's Comprehensive Model List

51- (class)		Industrial	For barring buttonholes, tacking shoes, clothing, etc. Makes stitches lengthwise to the tack, covered afterwards by shorter, transverse stitches. Automatic stop. Base and foot lifter. Speed 1200 RPM.	-
51W (class)		Industrial	Single needle post bed (7" high) machines. Lock stitch. Makes Fed. stitch #301. Drop feed. Foot lifter. Vertical axis hooks .Foot lifter.Post 7" high by 2" at the top. (09/1956)
51-1	(Cancelled <1955)	Industrial	For making bars 1/8” to 1/4”  long; six long, ten cross stitches.	16x73 or 16x74
51-2	(Cancelled prior to 05/1955)	Industrial	For making tacks. to 3/16” to 3/8” long; six long, twelve cross stitches.	16x73 or 16x74
51-3	(Cancelled prior to 05/1955)	Industrial
51-4	(Cancelled prior to 05/1955)	Industrial	For shoes. Makes tack 3/16” to 3/8” long; 8 long stitches and 8 cross stitches.	16x73 or 16x74
51-6	(Cancelled prior to 09/1948)	Industrial	For making bars 1/8” to 1/4” long; six long and twelve cross  stitches. Clamp for closing together and holding the end of buttonhole while tacking. Singer suggested replacement 68-39.	16x73 or 16x85
51-7	(Cancelled prior to 05/1955)	Industrial	As 51-6 but clamp does not close end of buttonhole.	16x73 or 16x85
51-8	(Cancelled prior to 05/1955)	Industrial
51-9	(Cancelled prior to 05/1955)	Industrial
51-10	(Cancelled 09/1948)	Industrial	Singer suggested replacement 69-8.
51K15		Industrial
51W25	(Cancelled 07/38)	Industrial	Singer suggested replacement 51W51.
51W26	(Cancelled 07/38)	Industrial
51W27	(Cancelled 07/38)	Industrial	Singer suggested replacement 51W52 (fitted for leather).
51W28	(Cancelled 07/38)	Industrial	Singer suggested replacement 51W54.
51W29	(Cancelled 07/38)	Industrial	For stitching and trimming edges of shoes, gloves, mittens,l military boots, etc/ Max stitch length 6 to the inch. Clearance under presser 7/32". Has vertical trimmer. Ball bearing poller presser. Speed 2000. Bed 16 3/4" long by 7" wide. Space at right of needle 8 1/4". Singer suggested replacement 51W55.
51W30	(Cancelled 07/38)	Industrial	Singer suggested replacement 51W56.
51W31	(Cancelled 07/38)	Industrial	Singer suggested replacement 51W57.
51W32	(Cancelled 07/38)	Industrial	Singer suggested replacement 51W100.
51W44	(Cancelled 09/25)	Industrial	Singer suggested replacement 51W54.
51W45	(Cancelled 09/25)	Industrial	Singer suggested replacement 51W55.
51W46	(Cancelled 09/25)	Industrial	Singer suggested replacement 51W56.
51W47	(Cancelled 09/25)	Industrial	Singer suggested replacement 51W57.
51W49	(Cancelled 09/25)	Industrial	Singer suggested replacement 51W59.
51W51		Industrial	Short arm machine. Belt driven. Mechanical opener. Link take-up. For shirts, corsets, underwear, tailoring and plain sewing in irregularly shaped textiles, etc. Max stitch length 8 to the inch. Bed 16 3/4" long by 7" wide. Space at right of needle 7 1/8". Speed 3000. (09/1956).
51W53	(Cancelled 07/38)	Industrial	Singer suggested replacement 51W52 (fitted for leather).
51W54		Industrial	Post bed; one-needle; rotary hook; lockstitch. Speed 3000 spm For general stitching in the manufacture of shoes; vamping; sewing in gores, etc.	128x4
51W55		Industrial	Post bed; one-needle; rotary hook; with vertical trimmer; lockstitch; speed 2500 spm For stitching and trimming the edges of gloves, shoes mittens, etc.	124x4
51W56		Industrial	(Photos: Mike Anderson)	128x2 or 128x4
51W57		Industrial	Trims abreast of needle. Throat plate with 0.050" trimming margin - otherwise same as 51W56. (11/55)
51W59		Industrial	For simultaneously stitching the edges and undertrimming the linings of shoe uppers and other leather work. Max. stitch length 8 to the inch. has horizontal undertrimmer. Ball bearing roller presser. Speed 2500. (11/55) (Photos: Mike Anderson)