US529769A - Sack-sewing machine - Google Patents

Description

(No Model.)

0. E. WILLIAMS. SACK SEWING MACHINE.

Patented NOV. 27, 1894] WITNESSES:

CMG V PATENT CHARLES E. WILLIAMS, OF COTLUMBUS, OHIO.

SACK-SEWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 529,769, dated November 27, 1894.

Application filed September 22,1893. Serial No. 486.234. (No model.)

To all whom it may concern:

Be it known that I, CHARLES E. WILLIAMS, a citizen of the United States, residing at Golumbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Sack-Sewing Machines,

of which the following is a specification;

My invention relates to the improvement of machines for sewing together the end edges of a sack, and the objects of myinvention are to so construct and arrange a sewing machine and frame thereof as to facilitate the closing by sewing of cotton or other sacks; to admit of the employment of the ordinary mechanism of a sewing machine; to admit of the mouths of the sacks being rapidly and securely closed and produce other improvements which will be more specifically pointed out hereinafter. These objects I attain in the manner illustrated in the accompanying drawings, in which- Figure 1 is an end view of my improved machine, showing a sack in position for sewing thereon. Fig. 2 is a side elevation of one end of the machine. Fig. 3 is a plan view of the track frame, and Fig. et'is an enlarged sectional View on line'w w of Fig. 3.

Similar letters referto similar parts throu ghout the several views.

In the construction of my improved sack sewing device, I employ an ordinary sewing machine top plate (1, upon which is supported any desirable form of machine arm a and head a together with the usual sewing mechanism.

In the formation or construction of the usual end supports or legs Z), the side or edge portions thereof are in the form of straight vertical legs 1) within each of which is formed a vertical slot or mortise 12 which extends substantially throughout the length thereof.

As shown in the drawings I so support the machine arm upon the top plate a as to bring the sewing head a thereof to a position which is in close proximity to a point vertically above one end of said top plate.

0 represents an oblong combined track and track frame which consists, as shown in the drawings, of two parallel track bars 0 which are connected at their ends by transverse cross pieces 0 and which are further connected by intermediate-cross pieces 0 These track bars though the same may be constructed of separate parts if desired. Through each of the intermediate'cross pieces 0 extends a bolt cl, the upwardly projecting screw threaded ends of which are adapted to beinserted, as shown, through the slotted openings 12 of the frame legs b. In order to support the inner track bar 0 at a slight distance from the machine end, I provide said inner track bar with short outward extensions of the cross pieces 0 as indicated at c. On the ends of the bolts cl are adapted to be screwed suitable clamping nuts e, which by being turned inward against and cross pieces I preferably cast integral, al- I the rear sides of the legs 6' serve to hold said track frame in close connection with said frame legs. It is evident that the heightof the track frame may be varied by loosening said nuts d, lifting said frame to the desired points suitable ears or lugs g within which are journaled, as shown, said wheels g.

h represents an L.-shaped guide and stop arm which extending downwardly from the outer side of the car platform, has its lower inturned end portion projecting, as shown, beneath the outer track bar a. This guard arm h which depends. from the center of the length of said car platform is adapted to prevent any tendency of the car toward tipping laterally, and also serves when said car is run upon said track to limit the movement of the car, by coming into contact with one or the other of the heads of the bolts (2 or similar stop projections on the outer side of the track bar. As shown in the drawings, I preferably so set the track frame as to cause the same to incline slightly toward one end thus, creating a tendency of said car to travel in the direction on the incline.

As indicated in the drawings the sack to be sewed after having been filled, is placed in a vertical position upon the car platform. The lips of the sack month are then doubled and brought together beneath the usual machine foot 10, and the sewing action imparted to the machine in any desirable or well known man ner. It is evident that as the goods of which the sack is formed is fed beneath the machine foot, the car will be gradually caused to travel toward the inclined end of the track.

I-Ieretofore it has been the common practice in flour-mills and other establishments where cotton sacks or sacks of other fabrics are employed, to sew the lips of the sametogether by hand, which as is well known is a slow and tedious process. The closing of the sacks by machine such as herein described must, as will readily be seen, not only result in the sack being rapidly closed, but in the production of such close and uniform stitches as to prevent theleakage or sifting through of the powdered or pulverized contents of the sack.

By the use of my improved machine, it is evident that the closing of the sacks will not only be accomplished in a superior manner, but that through the saving of time and labor the use of said machines must result in the saving of great expense.

It is obvious that a machine such as herein described and shown may be provided at a reasonable cost of manufacture.

Having now fully described my invention,

, what I claim, and desire to secure by Letters Patent, is-

A sack sewing machine comprising a sewing mechanism and frame upon which said mechanism is supported, the main arm of said mechanism being adjacent to the end of the top of said frame, vertical openings in the legs of said frame, a track supporting frame, bolts projecting from one side of the track supporting frame through said vertical openings, means for adjustably supporting said bolts in said openings, stops arranged on the opposite side of the track supporting frame near the ends thereof, and a car or truck to run on said track supporting frame and having an arm to subserve the two fold purpose of limiting the travel of the car by contacting with the stops, and holding the car on the track. H

CHARLES E. WILLIAMS. In presence of G. C. SHEPHERD, S. H. MARTIN.

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