US1370165A - Sewing iviachine - Google Patents

Description

6 SHEETS-SHEET n.'

S. G. TATE.

SEWING wlAcHmlLvl Panted Mar. 1,1921.

' APPL-NATION FILED SEPT. l2, 19l8. 1,370,165.

62X) vlmaoo Patented 1," 1921;

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s. GJTAIE. SEWING MACHINE. APPLICATION FILED. SE PT.1.2, 1818.

1,370, 1 65, Pmnd Mar; 1,1921.

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SEWING MACHINE. APPLICATION F'ILED SEPT. 12. Isra.

1,370,165. a; o, Panduar. 1,1921.`

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@bungs S. G. TATE.-

SEWING MACHINE.

APPLICATION F-ILED S'EPT. 12, 1918. 1 ,370,165, Patented Mar. 1, 1921.

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S. G. TATE.

SEWING MACHINE.

APPLICATION FILED SEPT. I2. 1918.

1 ,370,1 65, Patented Mar. 1, 1921.

6 SHEETS-SHEET 6.

IIIIIII f @www UNITED sr-Arns ETEN'I OFFICE.

SAMUEL GEORGE TATE, 0F CHICAGO,l ILLINOIS, ASSIGNOR `'IO UNION SPECIAL MAOHINE COMPANY. OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEVJING-MACHINE.

Application filed September 1?., 1918.

To alt 'Lc/ioni fr 11mg concern.' p

lie it known that I, "AMUnL Gnonon Tern, a citizen of t ie United States, residing at Chicago, in the county of Cook, State of illinois. have invented certain new and useful Improvements in Sewing-Machines, of which the following is a. description, reference being lied to the accompanying drawing and to the figures of reference marked thereon.

The in ention relates to new and useful iinproven Vnts in sewing,` machines undmore particularly to a sewing machine having a suspended work suppoitini` arm, oif from the end of wliieh materiel stitched. y

-in object ofthe invention is to provide u sewing` machine of `the above character having e work supporting arm carried by a depend ig support mounted on the end of an arm projecting` directly from the standard nndwherein seid projecting' arm und depem'ling support vvare arranged and shaped so as togive' loperator a clear range of `,'ision of the 'stitching point at the tree end 1 the'worh supporting arm from the operzhirs normal workingv position,

further ohl'gect of the invention is to provide u. machine of the above character wherein tte main shaft for operating the various l of the machine, is mounted in the standen 1 u and in the projecting arm.

A. still Yfm'ther object of the invention is lo pim-ub :i machine of the above cheracter' operated shaft arranged suht right ingles to the main shaft,

`with av hi stuntiu it" thea j he so that it may/he readily accessihleto the operator for turningl `the main shaft to raise al other objects will in port he olivious end will in part he hereinafter more fully disclosed.

In the drawings which 'show by way of ilhistration one embodiment of the invention:

Figure l is aside view of a machine mnhodydn,o my improvements, a portion of the frame being broken away to show in full lines the opere-ting linlis for the looper mechanism and the feeding mechanism;

Specification ci Letters atent.

fed as it is' Patented Mar. 1, 1921.

Serial No. 253,671.

2 is a top plan 'View of the machine; F 1g. 3 is e. front end view of the machine; Fig. 4 is a longitudinal sectional view centrally through the work supporting arm, centrally through the depending support therefor and through a portion of the projecting erm, the frame being' of the form shown in Fig. l;

Fig. 5 is a top plan View showing a slightly modified arrangement of the frame parts; y

' o is a front View or the machine, the frane being of the modified form; and Fig. 7 is a detail showing` the links for operating the needle and looper from the same crank.

The invention is directed broadly to a sewingI` machine having a suspended work supporting' arm so that sections of the lfalovric moy he stitched to form tubular arshaped so as to provide a suitable housingv und suitable hearings forv the needle har and the presser oar at a point intermediate the ends of the projecting arms. The work supporting, arm terminates beneath theneedley har and presser har and in advance of and in spaced relation to the standard.v The projLoting` arm and the depending Vsupport are shaped and arranged so as to give the operator a clear rangev of vision of the stitchingv point at the free end of the work supporting arm from the operators normal working1 position. That is, directly in front of the machine. To accomplish this, the projecting arm is offset at its outer end from a vertical plane passing 'centrally through the work supporting arm and the arm, which carries a depending sup i depending` support on which the work supporting arm is mounted inclined to its vertical plane. This throws the upper end of the depending support and the outer end of the projecting arm to one side of the line of vision of the operator of the stitching point and enables the operator to clearly see the 'work as it is being stitched while sitting in a normal position directly in front of the machine for guiding the material onto and along the work supporting arm.

Referring more in detail to the drawings, my invention is shown as embodied in a sewing machine having a base 1, carrying a standard 2. Projecting forwardly from this standard 2 and at the upper end thereof, is an arm 3, which will be referred to in the description and claims as a forwardly projecting arm. This projecting arm 3 projects forwardly toward the operator. Carried at the outer free end of the arm 3, is a supporting member 4, which is in the form of a casing and in a sense is a continuation of the arm 3. Carried at the lower end of this depending support 4 is the work supporting arm proper. which is indicated at 5 in the drawings. This work supporting arm 5 is cylindrical or substantially so, tapering slightly toward its free end. As clearly shown in Fig. 2 of the drawings, the arm 3 is offset from the center of the standard 2, while the work supporting arm 5 is located in a vertical plane passing substantially centrally through the standard 2. The arm therefore, is offset vertically from the work supporting arm 5. That is, said arm 3 is not directly above the arm 5. This .is 'accomplished by inclining the depending support 4, as clearly shown in Figs. 2 and 3 of the drawin In Figs. 5 and 6, I have shown a slightly modified form of frame, in that the projecting arm indicated at 3a in these figures of the drawings, extends at a slight acute angle to the vertical plane, passing centrally through the work supporting arm and the center of the standard. The result of this shaping of the arm 3a is to offset the free end thereof, so that it is at one side of a vertical plane, passing centrally through this work supporting arm. The depending support 4 and the work supporting arm 5 are of the same construction as in the other figures of the drawings. The operating mechanism is the same in both forms of the frame and consists of a main shaft G, mounted in suitable bearings in the upper end of the standard and the forwardly projecting arm carried by the standard. This shaft is driven by a suitable belt wheel 7, operated by a belt of the usual construction. At. a point adjacent the free end of the projecting arm 3, the shaft G is formed with a crank 8, with which a link 9 cooperates. Mounted in the arm 3 or 3f* is a shaft 10 having a crank pin 11 carried by a crank arm with which the link 9 engages. The crank arm on the shaft 10 and the crank on the shaft 6 are so proportioned that as the shaft 6 rotates, the shaft 10 will be oscillated.

Both the arms 3 and 3a are formed with a suitable projecting part 12, in which the needle bar indicated at 13, is mounted to reciprocate. The needle bar is actuated by the shaft 10. Said shaft 10 carries a laterally projecting arm 14. A link 15 is pivoted at its u per end to this arm 14 and at its lower en to a lug 16 carried by a collar attached to the needle bar. As the shaft 1() oscillates, it will raise and lower the needle bar 13. Said needle bar is provided with a plurality of needles, which are indicated at 17 in the drawings. The needle bar is disposed so as to reciprocate in a line central of the work supporting arm and adjacent the free end thereof. The material being stitched is held on the work supporting arm by a presser foot 18. This presser foot is carried by a presser bar 19, which is mounted in the projecting part 12 of the arm 3 or 3a.

The material is fed along the work supporting arm off from the end thereof, by a feed dog 20. Said feed dog l20 is carried by a feed bar 21, which feed bar is raised and lowered by an eccentric 22 mounted on the looper supporting shaft 23. The feed bar is moved endwise by a link connection 24 with a rock frame 25. The rock frame 25 is oscillated by a link 26, which is connected with a. crank 27 formed in the shaft 6. This rock frame is also connected by a link 28 with a depending arm 29 on the looper supporting shaft 23, so that the rock frame not only moves the feed dogr back and forth, but also moves the looper shaft 23 endwise to give to the looper its sidewise or needle avoiding movement. The looper is indicated at 30 in the drawings and this looper cooperates with the needles above referred to. The looper shaft 23 is oscillated by a link 31, which is connected with a crank 32 on the looper shaft and with the crank pin 8 which operates the shaft 10 (see Fig. 7 This looper operating mechanism and also the feed mechanism form no part of the present invention per se but are shown, described and claimed in the patent granted to Dudley S. Seymour, February 22, 1916, Number 1,172,911. It is understood also that the means for supporting the presser foot and the stitch forming mechanism in detail form no part of the present invention and said stitch forming mechanism has been illustrated more or less diagrammatically merely to show the arrangement of the same in the type of machine forming the subject matter of the present invention.

As above noted the material to be stitched, is placed underneath the work supporting arm 5 and the edges to be joined to form the tube are brought around on the upper face of the work supporting arm and fed underneath the presser foot. The stitching mechanism is of a character to join the edges of the fabric sections. The operator normally sits directly in front of the work supporting arm 5, so that the material may be guided at each side of the work supporting arm, lVhile seated in this position, there is a clear range of vision of the stitching point,` for the reason that the projecting arm at its free end and the depending support at its upper end, are oifset from a vertical plane, passing centrally through the work supporting arm and therefore the operator without bending to the right or the left, or sitting in a. cramped position relative to the machine, may readily view the stitching point and easily guide the material being stitched. The work supporting arm terminates at a point in front of the standard, so that there is ample space for theA material after it is stitched, to pass oif from the end of the arm. A guard 33 which is independent of the standard is secured thereto and serves as a means for guiding the fabric. This guard projects upwardly and forwardly in front of and above the end of the Work Supporting arm. The material passing off the arm will be deflected thereby downwardly.

By making the guard independent ofthe standard it may be readily shaped for properly guiding the fabric.

Mounted in the standard 2- is a vertical shaft 34, which carries a bevel gear 35 at its upper end meshing with a bevel gear 36 on the shaft 6. Also mounted in the standard il is a cross shaft 37, which carries a bevel gear 38, meshing with a bevel gear 39 on the vertical shaft 35. This shaft 37 extends cutsideof the standard and is provided with the hand wheel 40. While the machine driven by a belt wheel located at the rear o f the standard, this hand wheel 40 enables the operator to readily turn the main shaft 8, for raising or lowering the needle bar as desired when the machine has stopped. This facilitates the inserting and removing of the material from the machine.

1n my co-pending application, Serial Number 232,893, filed May (5th, 1918, l have shown a machine having a work supporting arm mounted in a manner somewhat similar to that herein shown and descibed and the broad invention of the present application is claimed in said co-pending application. The present invention is distinguished from that shown in my prior application referred to, by a fewer number of parts and b v a. more direct connection between the operating mechanism or` main shaft and the essential parts of the machine.

lt is obvious that minor changes in the details of construction and the arrangement of the parts, may be made without departing from the spirit of the invention as set forth in the appended claims.

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

1. A sewing machine including in combination. a standard, an arm mounted directly at the upper end of the standard and projecting forwardly therefrom, a depending support carried by said arm, a rearwardly extending worlii supporting arm carried at the lower end of said depending support, stitch forming mechanism operating at the free end of the work supporting arm and including a needle bar supported by said forwardly projecting 'arnnfeeding mech- Y anism for feeding the fabric lengthwise of said work supporting arm, said depending support and work supporting arm being disposed in a plane inclined to a vertical plane containing the longitudinal axis of the standard, whereby a clear range of vision of the stitching point may be had from the operators normal working position.

2. l sewing machine including in coinbination a standard, an arm mounted directly at the upper end of the standard and projecting forwardly therefrom, a depending` support carried by said arm, a rearwardly extending work supporting arm carried at the lower end of said depending support, stitch forming mechanism operating' the free end of the worli supporting arm and includine a needle bar supported by said forwardly projecting arm, 4feeding mechanism for feeding the fabric lengthwise of said work supporting arm,v

the upper end of said depending support and the outer end of said projecting arm being disposed at one side of a vertical plane containing the longitudinal axis of the work supporting arin` whereb}T a clear range of vision of the stitching point may be had from the operators normal working Vposition.

3. sewing machine including in combination a standari'l, an arm mounted directly at the upper end of the standard and. projee-ting forwardly therefrom, a depending' support carried by said arm, a rearwardly extending v York supporting arm carried at the lower end of said depending support, stitch forming mechanism operating at the free end of the worlr supporting arm and including a needle bar supported by said forwardly projecting arm, feedingl mechanism for feeding the fabric lengthwise of said work supporting arm, the outer end of said projecting arm being` disposed in a vertical lane at one side of vertical lane bassine' i P ,s

4. A sewing machine including in combination a standard, an arm mounted-directly at the ripper end of the standard and projecting forwardly therefrom, a depending support carried by said arm, a rearwardly extending work supporting arm carried at the lower end of said depending support, stitch forming mechanism operating at the free end of the work supporting arm and including a needle bar supported by said forwardly projecting arm, feeding mechanism for feeding the fabric lengthwise of said work supporting arm, said worl; supporting arm being disposed in a vertical plane passing centrally through the standard, the outer end of the projecting arm being disposed at one side of said vertical plane, whereby a clear range of vision of the stitching point may be had from the operators normal working position.

5. A sewing machine including in combination a standard, an arm mounted directly at the upper end of the standard and projecting forwardly therefrom, a depending support carried by said arm, a rearwardly extending work supporting arm carried at the lower end of said depending support, stitch forming mechanism operating at the free end of the work supporting arm and including a needle bar supported by said forwardly projecting arm, feeding mechanism for feeding the fabric lengthwise of said ,work supporting arm, said work supporting arm being located in a vertical plane passing centrally through the standard and said depending support being inclined to said vertical plane, whereby a clear range of vision of the stitching point may be had from the operators normal working position.

6. A sewing machine including in combination a standard, an arm mounted directly at the upper end of the standard and projecting forwardly therefrom, a depending support carried by said arm, a rearwardly extending work supporting arm carried at the lower end of said depending support, stitch forming mechanism operating at the free end of the work supporting arm and :including a needle bar supported by said forwardly projecting arm, feeding mechanism for feeding the fabric lengthwise of said Work supporting arm, said work supporting arm being disposed in a vertical plane passing centrally through the standard and terminating at a distance in front of the standard, so as to give a clearance space for the goods to pass off the end of the work supporting arm, the outer end of said projecting arm being disposed at one side of said vertical plane, whereby a clear range of vision of the stitching point may be had from the operators normal working position.

7. A sewing machine including in combination a standard7 an arm mounted directly on said standard and projecting forwardly therefrom, a main shaft mounted in said standard and arm and projecting lengthwise of the arm, a depending support carried at the outer end of said arm, a work supporting arm mounted at the lower end of said depending support, the outer end of said projecting arm and the upper end of said depending support being disposed at one side of the vertical plane passing centrally through said work supporting arm, whereby a clear range of vision of the stitching point may be had from the operators normal working position, feeding mechanism for feeding the material off from the end of the work supporting arm, stitching mechanism operating at the free end of the work supporting arm and including a needle bar carried by said forwardly projecting arm and means for actuating the feeding mechanism and the stitching mechanism from said shaft.

8. A sewing machine including in combination a standard, an arm mounted directly on said standard and projecting forwardly therefrom, a main shaft mounted in said standard and arm and projecting lengthwise of the arm, a depending support carried at the outer end of said arm, a work supporting arm mounted at the lower end of said depending support, the outer end of said' projecting arm and the upper end of said depending support being disposed at one side of the vertical plane passing centrally through said Work supporting arm, whereby a clear range of vision of the stitching point may he had from the operators normal working position, feeding mechanism for feeding the material off from the end of the work supporting arm, stitching mechanism operating at the free end of the work supporting arm and including a needle bar carried by said forwardly projecting arm and means for actuating the stitching mechanism and feeding mechanism from said shaft at a point of connection thereto adjacent the upper end of said depending support.

9. A sewing machine including in combination a standard, an arm mounted directly on said standard and projecting forwardly therefrom, a main shaft mounted in said standard and arm and projecting lengthwise of the arm, a depending support carried at the outer end of said arm, a work supporting arm mounted at the lower end of said depending support, the outer end of said projecting arm and the upper end of said depending support being disposed at one side of the vertical plane passing centrally through said work supporting arm, whereby a clear range of vision of the stitching point may be had from the operators normal working position, feeding mechanism for feeding the material off from the work supporting arm, a looper mounted at the end of the work supporting arm, stitching mechanism including a needle bar and means earried by the projecting arm for supporting the needle bar, an auXiliary shaft parallel with the main shaft for reciprocating said needle har and means for actuating said auxiliary shaft, the looper and the feeding mechanism from said main shaft.

l0. A sewing machine including in combination a standard, an arm mounted directly on said standard and projecting forwardly therefrom, a main shaft mounted in said standard and arm and projecting lengthwise of the arm, a depending support carried at the outer end of said arm, a work supporting arm mounted at the lower' end of said depending support, the outer end of said projecting arm and the upper end of said depending support being disposed at one side of the vertical plane passing eentrally through said work supporting arm, whereby a clear range of Vision of the stitching point may be had from the operators normal working position, a transverse shaft in said standard connected to said main shaft and a hand wheel carried by said transverse sha-ft.

l1. sewing machine including in combi nation a standard, an arm mounted directly at the upper end of the standard and projectingI forwardly therefrom, a depending support carried by said arm, a rearwardly extending work supporting arm carried at the lower end of said depending support,

said work supporting arm extending toward the standard and terminating in advance thereof, stitch forming mechanism operating at the free end of the work supporting arm and includinga needle bar supported by said forwardly projecting arm, feeding mechanism for feeding the fabric lengthwise of said work supporting arm, said depending support and work supporting arm being disposed in a plane inclined to a vertical plane containing the longitudinal axis of the standard, whereby a clear range of Vision of the stitching point may be had from the operators normal working pesition.

l2. A sewing machine including in combination, a standard, an arm mounted directly at the upper end of the standard and projecting forwardly therefrom, a depending support carried by said arm, a rearwardly extending work supporting arm carried at the lower end of said depending support and terminating at a distance from and directly in front of the standard, a curved guard disposed between the standard and the front end of the work supporting arm for deliecting the material passing oft' from said arm downwardly.

In testimony whereof, I affix my signature, in the presence of two witnesses.

SAMUEL GEORGE TATE.

lVitnesses STELLA HILL, ELsrn Knrr.

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