US1225236A

US1225236A - Sewing-machine attachment.

Info

Publication number: US1225236A
Application number: US11646416A
Authority: US
Inventors: Isaac N Frazure
Original assignee: F W COVEY
Current assignee: F W COVEY
Priority date: 1916-08-23
Filing date: 1916-08-23
Publication date: 1917-05-08
Anticipated expiration: 1934-05-08

Description

i. N: FRAZURE.

SEWING MACHINE ATTACHMENL APPLICATION HLEB AUGJZ. i916.

1,25,,Q36a Patanted May 8, 1917.

ISAAC N. FRAZURE, OF ST. PETERSIBURG, FLORIDA, ASSIGNGE F ONE-THIRD TO F. V.

COVEY, OF TAMPA, FLGRIDA.

SEWING-MACHINE ATTACHMENT.

Specification of Letters Patent.

Patented may 8, 12M.

Application filed August 23, 1916. Serial No. 116,464.

1 b all ie/ mm it may concern 3e it known that 1, Isaac if. Fnaz'onn, a. citizen of the Unit-ed States, residing at tit. Petersburg, in the county of Pinellas.

ltate of Florida, have invented certain no and, useful li'i'iprovements in blowing-hiachine Attachments; and T do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to abrading and polishing tools, and has particular reference to an attachment for sewing machines by means of which the abrading or polishing elements may be actuated by the sewing machine mechanism.

The object of the invention is to provide a simplified attachment for sewing machines by means of which a plurality of polishing and abrading implements may be carried and actuated, the device being mounted upon the hand wheel. of the nachinc so that the polishing and abrading implements may be held in handy position so that access may be had to them at any time for the purpose of sharpening scissors, needles or any other household articles, or where the polishing device is equally accessible.

With the above and such other objects in view relative to the construction of the device, my invention will now be fully set forth and described, reference being had to the accompanying drawings.

In the drawings Figure 1 is a perspective view of a portion of the sewing machine showing my invention applied thereto,

Fig. 2 is a plan view of one of the clamp plates forming part of my invention,

Fig. 3 is a side elevation of a clamp plate which cooperates with the clamp plate of Fig. 2,

Fig. 4 is an elevation of the bolt which joins the clamp plate and supports the abrading elements, some of the latter being shown in position,

F ig. 5 is a side elevation of one of the polishing wheels, and

Fig. 6 is a side elevation of a modification.

Referring more particularly to the drawings, 1 indicates a sewing machine which is provided with the usual hand wheel 2. Mounted upon the rim of the hand wheel 2 is a support consisting of the crossed plates or bars 3 and -il-. The upper plate or bar 3 consists of a shaped metal strip having the arcuate inturned fingers 5 formed at its opposite ends, said fingers 5 being adapted to overlie the rim of the hand wheel One of the lingers carries the set screw (5 in radial relation to the hand wheel 2, whereby the plate may be clamped upon the latter. The middle portion of the plate 8 is outrmrdly arched or bridged to form the head 7, which is adapted to cooperate with a similar head 8 forme fl at the middle portion of the plate 1, a recessed seat 9 being provided to receive the head 7 in interlitting relation. The plate -Ilis also provided with the inturned lingers 10 which engage over the rim of the hand wheel and are provided with the set screw 11 for clamping the plate l to the hand wheel, and when the

plates

3 and 1 are in interlitted intersecting relation with their fingers 5 and 10 clasping the hand wheel 2 at four equally distant points, the frame or support thus provided, is securely mounted upon the machine. At the central point of their intersection, the plates 3 and alare provided with a squared aperture into which is litted the correspondingly shaped bolt 12, said bolt having a head 13 which rests upon the rear face of the plate d so that the shank of the bolt extends outwardly from the frame or support. The bolt 12 further aids in bracing the frame or support, and also provides a shaft upon which the polishing and abrading elements are supported, the set screw 1- threaded upon the outer end of the bolt, serving as a fastening means for the elements.

The bolt 12 is generally made of sufficient length to receive all of the sharpeners provided or else all of the polishing needles, the two sets being interchangeable, and obviously the bolt may be long enough to receive all of the devices furnished with the apparatus. Thus, in Fig. 4, 15 and 16 represent a coarse and a line surface grinding wheel respectively, the latter being provided,

with centrally squared openings through which the bolt 12 may project and the set screw 14 being adapted to be set up against the wheels to hold them in position.

The grinding wheel may be removable and substituted with a polishing wheel 17, and a suitable bristle polishing wheel which is not shown. The polishing wheel 17 consists of a block of wood which is covered by a cloth or fabric having suitable polish surface, the end of the fabric being inserted in a recess 18 and therein held by a corresponding bloek or key 19.

Fig. 6 shows a modified form of the invention which is particularly adapted for use upon tailors sewing machines or any other machine'in which the driving belt is located upon the outside of the hand wheel. For such machines a shank 20, squared or otherwise shaped to receive the polishing and abrading elements is provided at one end with a tubular socket 21 which is adapted to fit over the outer end oi? the shaped end of the hand wheel or else over the hand wheel hub, and to be thereon secured by means of the set screws 22, which are preterably two in number so as to provide a suflicient clamping hold for the shank 20 adjacent its outer end; the shank 20 is provided with a threaded portion 23 which receives the set screw 24 by means of which the polishing or abrading elements are held in position. The extreme end of the shank may be provided with a split portion 25 upon which the threaded bobbin of the machine may be slipped and frictionally held for the purpose of renewing the thread supply.

From the foregoing description it is obvious that I have provided a simple and a complete apparatus for sharpening or polishing such household implements as are used in the sewing room or in other parts of the house, the device utilizing power which is present in nearly every household. The attachment is inconspicuous and may be kept in position upon the sewing machine hand wheel without interfering at any time with the regular operation of the machine. Furthermore, the device permits the interchange of polishing and abrading elements so that it has a substantially universal use within the sphere of its particular art.

What I claim is An attachment for sewing machines, comprising in combination, with the hand wheel of the machine, a pair of outwardly bridged plates intersecting at the bridged portions in interfitted relation, one of said plates having a transverse recess forming a seat for the other plate, inturned fingers formed on the ends of said plates to fit over the rim of the hand wheel, means for clamping said lingers in position a squared bolt having its head seated in the bridged portion and extending outwardly from the intersecting portions thereof, said bolt having an extended shank, abrading and polishing elements interchangeably mounted upon the shank, and means for securing the elements upon the bolt.

In testimony whereof, I aiiix my signa ture, in the presence of two witnesses.

ISAAC N. FRr ZURE. Witnesses E. R. DmKnNsoN, F. WV. Cover.

Copies of this patent may be obtained for five cents each, by addressing the Commissionerof Patents,

' Washington, D. 0.