US1423243A - Sewing-machine frame - Google Patents

Description

J. R. MOFFATT.

SEWING MACHINE FRAME.

APPLICATION FILED :um: 17. 1920.

1,423,243., t d uly 18, 1922.

4 SHEETS-SHEET 1.

J. R. MUFFATT.

SEWING MACHINE FRAME.

APPLICATION man JUNE, 1920.

Patented July 18, 1922.

4 SHEETS-SHEET 2.

J. R. MOFFATT.

SEWING MACHINE FRAME.

APPLICATION FILED JUNE 11, 1920.

1 9% 3,243 Patented July 18, 1922.

4 SHEETS-SHEET 3.

J. R. MOFFATT.-

SEWING MACHINE FRAME.

APPLICATION FILED JUNE 17, 1920.

1,423,248, Patented July 18, 1922.

4 SHEETS-SHEET 4. b

JAMES R. IVIOIEFATT, OF CHICAGO, ILLINOIS, ASSIGNOR T0 "UNION SPECIAL MACHINE COMPANY, 011 CHICAGO, ILLINOIS, .A. CORPORATION OF ILLINOIS.

SEWING-MACHINE FRAME.

mascara.

Application filed June 17,

To all whom-it may concern:

Be it known that I, JAMES R. MOFFATT, a citizen the United States, residing at llhicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Sewing-Machine Frames, of which the following is a description, reference being bad to the accompany ing drawing and to the figures of reference marked thereon.

The invention relates to new and useful improvements in frames for sewing ma chines, and more particularly to the construction of a supporting standard which carries the overhanging arm and the cylinorical work support.

in object of the invention is to provide a standard construction, wherein the oil escaping from the bearings for the main shaft extending through the standard may be collected and directed away from any possible cont-ac; with the material fed along the cylindrical work supporting arm.

In the drawings z V Figure 1 is a view partly in section; partly in side elevation, showing a portion of a sewing machine embodying my invention;

Figure 2 is a view partly in section and partly in rear elevation of the same;

Figure 3 is a sectional view on the line 33 of Figure 2;

Figure 4 is a view of the machine from the opposite side of that shown in Figure 1;

Figure 5 is a View partly in end elevation and partly in section, on the line 55 of Figure Prior to my invention, it has been customary to provide sewing machine with a work supporting cylinder having a feeding mechanism which is disposed so as to feed the material on to the cylinder. Machines of this type are especially adapted for stitching tubular articles, and, as a conse quence, the material as it is stitched accumulates on the work supporting cylinder until the entire tube is finished, after which it is withdrawn from the cylinder and this necessitates the material being forced along the cylinder up against the standard of the machine.

The present invention is directed particularly to means for preventingoil from accumulating around the base or face of the standard adjacent the work supporting cyl- Specification of Letters Patent.

' arm 1920. Serial No. 389,643.

inder where the material is likely to come into contactwith the same. g

in the particular illustrated embodiment of the invention, there is a cross shaft in the standard of the machine andthe housing or casing forming the standard is provided with troughs located beneath the bearings which receive the oil working out of the bearings and these troughs are so constructed and shaped as to lead the oil to the rear of the housing or casing forming the stand ard.

Referring more in detail to the drawings, I have shown my invention as applied to a sewing machine frame having a supporting base 1, from which rises a casing or housing forming the standard 2. Secured to this standard and projecting outwardly therefrom is a work supporting cylinder 3. Also carried by the standard is an overhanging These parts are of the usual construction in sewing machines.

Mounted in suitable hearings in the stand ard a shaft which carries a belt wheel 6. One of the bearings for the shaft 5 is indicated at T in Figures 3,4 and 5, and the other bearing is indicated at 8 in F igure 2. f

The housing and base are preferably formed integral and along the side of the housing, directly beneath the bearing 8, is a ledge 9 formed with a recess 10 in its up per face and this ledge 9 inclines downwardly toward the rear of the machine, as shown in Figure 1 of the drawings. The recess 10 serves as a trough to catch any oil working out of the bearing 8 on to the outer face of the housing and running down the side face of said housing.

011 the other side of the housing or casing forming the standard, and directly beneath the bearing 7, is a projection 11, which extends from the bearing 7 downwardly and is recessed to form a trough 12. The casing is provided with an opening 13 through which this trough 12 discharges oil accumulating therein, into the standard, and the oil on the inside of the standard is directed by a channel 14 into the oil well 15. Any oil working out of the hearing 7 will be caught by the trough 12, directed to the inside of the standard, and thus kept well away from the face of the standard from which the work supporting Patented July 18, 1922.

directing it to the rear of the machine. The

recesses 10 and 17 will therefore catch all of the oil working out of the bearings which is not caught by the trough 12 and directed inside the standard, and direct the oil to the rear of the standard. This provides means for catching the oil working out of the bearings for the shaft and directing the same away from the face of the standard carrying the work supporting arm so that the material ted along the work supporting arm may come in contact with the base of the standard without being soiled by oil.

It is obvious that changes in the details of construction may be made without de- 'iarting from the spirit of the invention as set forth in the appended claims.

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

1. A frame for sewing machines including a standard, a work supporting arm proj ecting from said standard along which the material being stitched is moved, said standard having bearings, one of which projects from the standard, a shaft in said bearings, a drive wheel on the end of the shaft adjacent said projecting bearing, said standard having a trough projecting This recess inclines downtherefrom directly beneath the projecting bearing for the shaft, and an opening through said standard through which the oil draining into the trough is directed to the inside of the standard.

. 2..A sewing machine frame including a standard, a work supporting arm projecting from said standard along which the material being stitched is moved, said standard having integral ledges provided at the sides thereof in which are formed recesses inclining away from the face of the standard carrying the projecting arm and adapted to catch oil draining from the bearings for directing the same away from said Work supporting arm.

3. A sewing machine frame including a standard, a work supporting arm projecting from said standard along which the material being stitched is moved, said standard having bearings, one of which projects from the standard, a shaft in said bearing, a trough formed integral with the standard and located beneath the projecting bearing, said standard having an opening whereby the oil draining into said trough is directed inside of the standard, said standard having integral ledges at the base thereof on the sides containing thebearings, each of said ledges having a recess inclining downwardly away from the face of the standard carrying the projecting arm, which recesses form troughs for catching any oil draining from the bearings and directing the same away from the work supporting arm.

In testimony whereof, I aiiiX my signature.

, JAMES R. MOFFATT.

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