US352231A - Saidsnellen - Google Patents

Description

(No Model.)

A. DE BEAUM'ONT'XB S. SNBLLENBURG.

FEED MECHANISM FOR SEWING MACHINES.

No. 552,231. Patented Nov. 9, 1886,

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INVENTORS as to not only subserve its purpose ofbeing a UNITED STATES PATENT OFFIC ALEx NDEE *DE BEAUMONT, oEjoAMDEN, NEw JERSEY, AND SAMUEL SNELLENBURG, OF PHILADELPHIA, PENNSYLVANIA; SAID SNELLEN- BURG ASSIGNOR, BY ESNE ASSIGNMENTS, To THOMAS B. HAENED, I

OF CAMDEN, NEWJERSEY.

FEED MECHANISM FOR SEWING-MACHINES.

SPEQIFICATION forming part of Letters Patent No. 352,231, dated November 9, 1886.

Application filed October 2, 1885. Serial No. 178,811. (No model.)

To all whom it may concern.-

Be it known that we; ALEXANDRE DE BEAU- MONT, a citizen of the United States, residing in Camden, in the State of New Jersey, and SAMUEL SNELLENBURG, likewise a citizen of the United. States, residing in the city and.

county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Feed Mechanisms for SewingMachines, of which the following is a specification.

Our invention relates both to the feed mechanism and to the presser-feet of sewing-ma chines; and it relates especially to a presserfoot invented by us, and of such construction resser-foot, but also to cooperate with the feed proper in occasioning the feed of the fabric upon the bed-plate, the result of the operation of the device being that the upper of two piecesof fabric being stitched together is not creased or crimped up, but is, while in a perfectly smooth and flat condition, united to the under piece.

The improvements in sewing-machine feeds and presser-feet invented by us and above referred to constitute the subject-matter of an application, Serial No. 178,503, for patent filed by us in the United States Patent Office the 29th day of September, 1885.

The object of our invention is to provide an attachment which can be applied to any sewing machine, and which will permit of the ready adjustment of the machine for feeding in any desired direction. Apparatus embodying our invention is rep resented in the accompanying drawings, and

- described in this specification, the particular subject-matter claimed as novel being herein-- after definitely specified.

In the drawings, Figure l is a front elevation of a device conveniently embodying our improvements. Fig. 2 is a top plan view of spective view of the spring-clip removed from the presser-foot.-

For an exact understanding of our improve-- ments it will be necessary also to describe the features which constitute a part of our other inventiomhereinbefore referred to.

In the drawings, A is a portion of the head of the overhanging arm of the machine-frame.

B is the bed-plate, b an ordinary four-movement or other reciprocating feed, and O is the needle bar, which is conveniently provided with a collar or other projection, c.

D is the shank of the resser-foot.

E is the presser-foot, e the foot thereof, and (2 the overhanging head thereof. The presserfoot is pivotally mounted upon what we term an adj usting-ring, F, which is a fixed horizontally-disposed ring of metal connected with and carried by the shank of the presser;foot.

The presser-foot is so connected with the said ring, conveniently by means of a hub, 6 as to be capable of being swept around the circumference thereof while at any point where it happens to rest, being yet capable of a rocking movement with respect to said ring. The overhanging head e of the presser-foot is provided with an annular lip, 6", through which the needle-bar and the collar thereupon in the reciprocation of the bar pass. V

e is a vertical flange erected from the lip 6 and e is an inclined plane adjustably connected with respect to both the annular lip and the vertical flange last mentioned by the set-screw 6 In the rising movement of the needle-bar the collar thereon encounters the inclined plane, and by said encounter deflects the entire presser-foot about its hub as a pivot, so as to occasion the movement of the foot of the presser-foot in the direction of the arrow in Fig. 1 and in conjunction with the bed-plate feed.

It may be here explained that the feature of a combined resser-foot and feed, broadly as such, is that which we have described and claimed in our application above referred to.

In the present case the improvement resides in mounting a presser-foot of the above character and mode of operation upon such a device as the adj usting-ring herein set forth, whereby the presser foot, as an entirety, is adapted to be adjusted so as to operate to feed in any desired direction.

In order, in the case ofour present improvements, after the descent of the needle-bar, to secure the re-defiection of the presserfoot to its normal position, or that represented in Fig. l, a spiral spring, G, is provided and connected with the presser-foot at its one extremity and at its opposite extremity with the adjusting ring, it being for convenience coiled about said adj usting-ring. This spring serves to effect the return desired. When the presserfoot as an entirety is shifted upon the ring, the extremity of the spring, which is adapted to be connected with the ringfor instance, by being passed through holes f in the ringis withdrawn from any particular hole and en gaged with any other.

In order to secure the fixed retention of the presser-foot with respect to circumferential movement of position upon the adjusting-ring, we have provided a spring-clip, H, which is connected with the overhanging arm of the presser-foot, and adapted by means of a knifeedge, h, connected with it, to be engaged with any one of a series of notches, f formed in the adjustingming. The hub 6 of the presserfoot is slotted through, as at 6 Fig. 4, to permit of the entrance of the knife-edge of the spring-clip into a notch, and of its continued engagement therein. notwithstanding thecontinned vibratory movement of the presFer-foot as an entirety. XVhen it is desired to shift the presser-foot upon the ring, the spring-cli p is simply raised or lifted up until its knifeedge is disengagedgfrom the notch in which it happens to be engaged.

The entire contrivance of the spring-clip is simply one of convenience, and many other contrivauces for retaining the pressenfoot in a given position upon the ring may be, with perhaps equal advantage, resorted to in its stead.

Such being a description of a form of apparatus conveniently embodying our improve ments, we may say that we do not herein claim or seek to cover the invention of a pivoted or rocking presser adapted to act jointly as apresser-foot and feed, and to be actuated by the movements of the needlebar, our present invention being confined to the mounting of such a rocking presser-foot in such manner as to occasion its operation for feeding in any desired direction.

The operation of the device has already been sufliciently indicated; but it is proper to add that when it is desired to employ the device to feed continuously in the direction of the movement of the bed-plate feed the device is in operation placed in the position represented in Fig. 1, in which position the feed 12 is also employed. When, however, it is desired to feed in a direction that would be an tagonistic to the operation of the said tablefeed, the latter is thrown out of action and the presser-foot feed alone operated. Itis proper for us also to state that while in most instances we prefer to have the under surfaces of the "foot of the presser-foot provided with teeth or serrations, or roughened, yet the foot will operate when its under foot is perfectly smooth.

Having thus described our invention, we claim- 1. The combination, in a sewing-machine, of a pivoted or rocking presser-foot, a needlebar adapted to engage therewith and occasion the rocking of said foot, and a ring or rod secured to and carried by the presser-bar, and upon which said pressenfoot is mounted for circumferential adjustment, substantially as set forth.

2. The combination, in a sewing-machine, of a pivoted or rocking presser-foot, a needlebar adapted to engage therewith and occasion the rocking of said foot, a ring or rod secured to and carried by the presser-bar, and upon which said presser-foot is mounted for circumferential adjustment, and a spring connected with both adjusting-ring and presser-foot, substantially as set forth.

' 3. The combination, in a sewing-machine, of a pivoted or rocking pressecfoot, a needlebar adapted to engage therewith and occasion the rocking of said foot, a ring or rod secured to and carried by the presser-bar, and upon which said presser-foot is mounted for circumferential adjustment, a spring connected with both adj usting-ri ng and presser-foot, and means for maintaining the presser-foot in given positions upon the ring, substantially as set forth.

4. As a device for maintaining the presserfoot in given positions upon the adjusting ring, the combination of the adj Listing-ring provided with notches, the presser-foot adapted to rock thereupon, and a spring-clip applied to the presser-foot and adapted to engage with said notches, substantially as set forth.

5. The combination, in a sewing-machine, of a pivoted or rocking presser-foot, a needlebar adapted to engage therewith and occasion the rocking of said foot, a ring or rod secured to and carried by the presser-bar, and upon which said presser-foot is mounted for circumferential adjustment, and a bed-plate feed operating in the plane of the bed-plate, substantially as set forth.

In testimony whereof we have hereunto signed our names this 24th 'day of September, A. D. 188 5.

ALEXANDRE DE BEAUMONT. SAMUEL SNELLENBURG.

In presence of W. C. STRAWBRIDGE, J. BONSALL TAYLOR.

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