US2868153A - Adjustable gauge attachment holder for sewing machines - Google Patents

Description

Jan. 13, 1959 s. GORDON 2,868,153

ADJUSTABLE GAUGE ATTACHMENT HOLDER FOR SEWING MACHINES Filed Aug. 6, 1956 INVENTOR. SEYMOUR Gannon :QTTURNE'Y United States Patent ADJUSTABLE GAUGE ATTACHMENT HOLDER FOR SEWING MACHINES This invention concerns an adjustable attachment holder for a sewing machine. The invention is especially useful for hemmer and binder attachments having a curved anchor arm arranged to engage the edge of asewing machine bedplate.

It has been known heretofore to provide-a hemmer or binder attachment for a sewing machine with an anchor arm integrally formed with a mounting plate for the work piece of the attachment. Such attachments have heretofore been made in different sizes with anchor bars of dilferent lengths, because sewing machines of dilferent makes and types have bedplates of varying dimensions.

A principal object of the present invention is to provide a mounting plate for a sewing machine with an adjustable anchor plate.

A further object is to provide a detachable anchor arm extension for a sewing machine attachment.

A further object is to provide a means for fitting an attachment to a sewing machine bedplate.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claim in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. l is a plan perspective view of an attachment holder embodying the invention.

Fig. 2 is an elevational side view of the attachment holder.

Fig. 3 is a sectional view taken on lines 33 of Fig. 2.

Fig. 4 is a perspective view of a portion of the anchor arm and adjustable extension.

Fig. 5 is an exploded view of the members shown in Fig. 4.

Fig. 6 is a perspective View of a modified form of arm extension member.

In Fig. l is shown a generally L-shaped attachment holder H having a flat rectangular base plate 10 with an elongated strip-like fiat arm 11 extending perpendicular therefrom and coplanar with the base plate. The base plate is provided with a slot 12 through which may be inserted a screw 14 threaded in an aperture in the bedplate B of a sewing machine. The base plate is laterally adjustable in position as indicated by arrow 15. A pair of screws 16 and 17 are threaded in the base plate 10 and arm 11 respectively and serve to secure the work piece 19 to the holder H. The work piece has a plate extension 21 in which is a slot 18 for adjustably positioning the work piece before the screws 16 and 17 are tightened. The work piece is provided with a scroll portion 20 for turning a plain hem. Instead of the hemmer type work piece 19 there may be substituted hemmer work pieces of other known types as well as binder work pieces for braid, tape, piping, etc.

Near the end of the arm 11, as clearly shown in Figs. 4 and 5, is a threaded aperture 25. A screw 24 is threaded in this aperture. This screw has an enlarged head which ice overlies the sides of a slot 26 in the anchor arm extension member 27. This member, as shown in Figs. l-5, has a substantially fiat bearing plate-portion 28 which is seated on the end of arm 11. The bottom face of bearing plate 28 is formed with serrations 28 adapted to be engaged with complementary serrations 11 formed on the top surface of the arm 11 to assure that the device will stay in set position. Slot 26 is centrally disposed in plate portion 28 and is substantially equal in length thereto. A pair of laterally disposed flanges 30, 32 engage the sides of arm 11. The extension member is thus slidably mounted on the arm 11 and is securable by a screw 24 in a desired position as indicated :by arrow 34. The end E of screw 24 is located flush with or just short of the bottom of the arm 11 as shown in Fig. 3, when the screw is fully tightened. Plate portion 28 has a further extension 35 which terminates in a flanged curved end to define a hook 36 which engages the extreme edge 37 of bedplate B, and the serrations 28 extend onto the extension 35.

The distance D between the anchor point of screw 14 and the edge 37 of the bedplate depends on the particular make and model of the sewing machine with which the attachment is to be used. In order to compensate for varying sizes of bedplates, i. e. for different lengths of distance D, the arm extension 27 may be adjustably positioned by means of the screw 24. When screws 14 and 24 are tightened rotational movement of the holder and work piece on the bedplate is eifectively prevented. If necessary, extension member 27 can be made considerably longer than shown in Figs. 1-5 as illustrated in Fig. 6 where the extension member 27' has a long plate portion 28 with a long slot 26' and long side flanges 30, 32'. Extension 35 is also considerably lengthened, and the serrations 28 on the plate portion 28' extend onto the extension 35'.

The attachment holder H with extension 27 or 27' is preferably made of stainless steel, but it may be made of another suitable sheet metal punched and shaped to required form.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and that various changes and modifications may be made Within the scope of the invention as defined in the appended claim.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

In a hemmer attachment holder for a sewing machine having a bedplate, the combination comprising a fiat generally rectangular plate having a slot therein, a screw disposed therein and engaged in an aperture in the bedplate, a work piece removably secured by screws to said flat plate, an arm in the form of a flat strip-like member formed integrally with said flat plate, said arm being coplanar with the flat plate and extending perpendicular thereto, said arm having a threaded aperture near the free end thereof and having serrations on its upper surface, and a member forming an extension of the arm slidaibly supported on the arm, said extension member being a narrow plate having depending flanges juxtaposed to opposite sides of the arm, said narrow plate having a centrally disposed elongated slot therein, a screw extending through said latter slot and being threaded in said aperture and having a head bearing on said narrow plate, said narrow plate having serrations on its bottom surface adapted to coact with the serrations on the arm, said narrow plate having a portion extending beyond said flanges and terminating in a depending hook engaged with an edge of the bedplate, whereby rotational movement 3 of the work piece and the flat plate on the bedplate is 730,932 efiectively prevented. n 781,057 2,034,672 References Cited in the file of this patent 2,560,705

UNITED STATES PATENTS 5 169,629 DuLaney Nov. 9, 1875 412,164 Cook Oct. 1, 1889 957,249

Lawler et a1. June 16, 1903 Eshelman Jan. 31, 1905 Ackerman Mar. 17, 1936 Singer July 17, 1951 FOREIGN PATENTS France Aug. 22, 1949

Images