US732719A - Adjustable cloth-presser for sewing-machines. - Google Patents

Description

PATENTED JULY 7, 1908.

I No. 732,719.

.13. DE VIIILEL. ADJUSTABLE CLOTH PRESSBR PO'BL $WING MACHINES.

APPLICATION FILED AUG. 391,, 1902.

N0 MODEL.

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FatentedJuly-Z 1903.

PATENT- OFFICE.

EDWARD DE VILLE, OF BRIDGEPORT, CONNECTICUT.

ADJUSTABLE CLOTH-PRESSE'R FOR SEWING-MACHINES SPECIFICATION fo m ng part of Letters Patent No. 732,719, dated July 7, 1903.

Application filed August 30, 1902i Serial lilo. 121,594; (No model.) I

To all whom it may concern.-

Be it known that I, EDWARD DE VILLE, a citizen of the United States, and a resident of Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Adjustable Cloth-Pressers, of which the following is a specification.

My invention relates to new and useful improvements in cloth-pressers, such as are employed on various kinds of manufacturing sewing-machines, particularly the high-speed buttonhole and hemstitch machine. These cloth-pressers belong to the class of sewingmachine presser-feet and in a sense operate in conjunction therewith.

Heretofore considerable trouble has been experienced in producing a durable clothpresser which would perform the several offices required and would permit of the interchanging of a very great number of difierent styles of presser-feet. In the majority of instances special holders have been made to accommodate the different presser-feet, and consequently when it was desirable to change these presser-feet the holders had to be removed With them, thus requiring an expensive lot of accessories with each machine before it could be used for all of the purposes required.

It is therefore the object of my invention to provide a single attachment which will perform all of the offices required of pressers employed on the ordinary manufacturing-machine with the changing only of the presserfeet proper, to so construct the devicethat said presser-feet will be vertically adjustable and yieldable to .better accommodate differ ent thicknesses of cloth, retaining a uniform several directions indicated.

they may be used singly or doubly, as required, and with very little'trouble of alteration. I

With the above objects in viewmy invention resides and consists in the novel construction and combination of parts shown upon the accompanying sheet of drawings, forming a part of this specification, upon which similar letters of reference denote like or corresponding parts throughout the several figures, and of which- Figure 1 shows a perspective view'of my improved presser complete, including a pair of presser-feet comprising one style used on manufacturing-machinesand a portion of a presser-bar, such as are at present used on all machines of this class and to'which my presser is attached in a well-known manner.

Fig. 2 is a side elevation of theconstruction shown in Fig. 1. Fig. 3 is a central vertical cross-section taken on line 00 x of Fig. 2, showing the internal arrangementof the parts and how the pressers are adjustable in the Fig. 4 is a'front elevation of the presser shownin the preceding views. Fig. 5 is a plan view, one of the presser-feet being deflected to the right, effecting an increased separation between the two feet. Fig. 6 is a detail perspective view of the guide-collar shown on the top of the secondary presser-bar illustrated in the preceding figures, and Fig. 7 is a modification illustrating the manner in which the secondary presser-bar and its shank may be formed integral. I

- As there are a large variety of presser-feet employed on this class of sewing-machines 'for various kinds of work, and whereas the construction or design of these particular feet shown.) The lower end 'of this ibar issplit and provided with a locking-screw B, by means of which my improved presser is attached.

C represents the main body of my presser,

the presser-bar and is only subject to such vertical movements as may be imparted to the bar by the operator through the medlu 111 of the ordinary lift (not shown) that is employed in connection with presser -bars of sewing-machineheads. \Vithin this part 0 is mounted the operative parts of my presser, which, as beforeintimated, comprise substantially two separate constructions of pressers, both of which are alike in detail and which for convenience I will refer to with the same reference characters in the following paragraph.

Within the part 0 are located two vertical bores D, situated side by side, both having a reduced opening through the top, forming a shoulder E on the inside. Within each of these bores is located a secondary round adjustable presser-bar F, having a shoulder G and a reduced threaded top end F, corresponding to and extending through the reduced openings of the bores D, before mentioned. A spring H is placed intermediate of'the shoulders E and G in a manner to impart a downward thrust to the secondary bars toatford a top pressure to the cloth placed beneath the feet. These secondary bars are provided near their lower end with a transverse groove N and a lock-screw O, by means of which the shanks K of the presser-feet L are attached, said shanks being provided with transverse ribs to engage the grooves N in the bars and also with elongated openings M to provide for the transverse adjustment of said shanks on the bars. Thus it will be apparent that different styles of feet may be attached by the simple use of a screw-driver and that they can be easily adjusted to properly register with the needle.

To the reduced extensions F of the secondary bars are fitted guide-collars I, which are secured thereto bya set-screwJ and are provided with extensions to reciprocate between vertical guides Q, and R and between which guides said extensions are permitted to move vertically with the movement of said secondary presser-bar, insuring the retention of the latter in a true alinement with that of the face of the machine when set-screw O is fastened with that in view. Should it be desired to spread one or both of the feet, as indicated in Fig. 5, the set-screw J would be loosened,as shown in Fig. 3, whereupon either the needle or work can be gotten at with but little trouble. As shown, the guide Q, is in the form of a separate piece, being adjustably secured to the body by means of small screws in order that the wear which occurs between the said guide and extension may be taken up. To the exposed extremity of this extension F is applied an adjusting-nut S, by means of which the normal vertical position of the presser-foot and its bar is determined, and consequently the tension of the spring is controlled and both feet brought to press alike.

In Fig. 7 I have shown a construction wherein the presser-bar F and the shank K are formed integral, since in a few instances the changing of the presser-feet would not be necessary and neither would the forward-andbackward adjustment be required.

From the foregoing construction it will be seen that in the first place the presser-bar and its spring being inelosed the latter cannot get clogged with dirt. Secondly, by means of the nut at the top of the bar the same can be conveniently setto any elevation and the two feet adjusted to register exactly with each other without the use of a file. Third, either presser-foot can be quickly deflected outward (see Fig. 5) from the needle to allow access to the needle or work. Further, by reason of the transverse grooves and screw connection the shank can be adjusted forward or backward on the bar, and different styles of feet can he applied without the removal of the entire device.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a sewing-machine cloth-presser, the combination with a body having means for its attachment to a presser bar, of a pair of spring-actuated secondary presser-bars there in, adjustable collars on said bars and guides for said collars to determine the alinement of said bars.

2. In a sewing-machine cloth-presser, the combination with a body having means for its attachment to a presser-bar, of a springactuated secondary presser-bar therein, a collar on said bar, guides for said collar to determine its alinement, means for adjustably turning the bar within the collar to move the presser-foot to the right or left.

3. In a sewing-machine cloth-presser, the combination with a body having means for its attachment to a presser-bar, of spring-actuated secondary presser-bars therein,adj ustable collars on said bars bearing extensions, fixed and adjustable guides on said body between which the extensions of the collar move vertically.

4. In a cloth-presser for sewing-machines, the combination with a body having connections for its attachment to a presser-bar, of vertical bores through said bodyhaving shoulders in their upper end, secondary presserbars in said bores, inclosing springs between the shoulders and bar to force the latter down, collars on said bars bearing a guide, a fixed and adjustable way between which said guide operates, a nut above the collar to adjust the secondary bar vertically with respect to said collar, and means to permit either footto be adjusted sidewise to and from the needle.

5. In a cloth-presser for sewing-machines, the combination with a presser-bar, of an at- ICC tachable body having a vertical bore therethrough, a secondary presser-bar fitted in said body, an in closed spring interposed between the body and bar to force the latter down, means for retaining the aliuement of the bar comprising a collar and guides between which said collar operates with means for adjusting one of said guides to take up any wear.

6. In a cloth-presser for sewing-machines, the combination with a presser-bar, of an attachable body, a shouldered bore therethrough, a secondary presser-bar fitted to said bore and bearing a shoulder, an inclosing spring intermediate of the said shoulder, a guide-collar fitted to the secondary bar with ways between which said collar operates and whereby the said bar is retained in proper alinement, means for locking the bar to the iollar and a not for vertically adjusting the ar. g

7. In a sewing-machine cloth-presser, the combination with a body having means for its attachment to a presser-bar, of a pair of spring-actuated secondary presser-bars therein'bearing presser-feet, collars on said bars, vertical guides for the collars, means for adj ustably turning the bars within the collars to throw the feet to and fromthe needle-bar.

' Signed at Bridgeport, in the county of Fairfield and State of Connecticut, this 23d day of August, A. D. 1902. 1

EDWARD DE VILLE.

Witnesses:

O. M. NEWMAN, WILLIAM V. DEVITT.

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