US2145824A - Sewing machine - Google Patents

Description

Jan. 31, 1939. J. P. WEIS ET AL SEWING MACHINE Filed. Oct. 2'7, 1934 5 Sheets-Sheet 1 IN VENT OR .fobn B #2 13 y Frederw/r F Z eie 3 31, 11939. J. P. WEIS El AL 2,145,324

SEWING MACHINE Filed Oct. 27, 19:54 5 Sheets-Sheet 2 INVENTOR 6 J07! 21 Z 74/003 1 Wat/t Zez'en qmfiiw Jan. 31, 1939. J. P. WEIS ET AL SEWING MACHINE Filed Oct. 27, 1954 5 Sheets-Sheet 4 INVENTOR a Job 12 P 77%0'6:

BY FredevickFZezez;

WLQSZLQM qm Jail. 1, 1939. J. P. was E AL 2,145,824

SEWING MACHINE Filed Oct. 27, 1934 5 Sheets-Sheet 5 a ATTO'RN BY' IZeier;

Patented Jan. 31, .1939

PATENT OFFICE SEWING MACHINE John P. Weis and Frederick F. Zeier, Nyack, N. 1, assignors to Willcox & Gibbs Sewing Machine Company, New York, N. Y., a corporation of New York Application October 27, 1934, Serial No. 750,259

12 Claims.

.The present invention relates to improvements in sewing machines, and particularly to improvements in the lower or work supporting arm con-' struction and the associated structures therein and thereon. This application is a continuation in part of the co-pending application Ser. No. 745,343, filed Sept. 24, 1934.

It is a primary object of the present invention to provide a single sewing machine which may be made into a so called fiat bed or feed across the arm type of sewing machine and may also be made into and used equally well as a cylindrical or feed around the arm type for hemming bloomers, step-ins, trouser and overall legs, and the like; and the provision of such a machine which may be used equally well as a longitudinal looper or as a transverse looper type machine, viz. changeable from needle loop taking and shedding travel in a direction transversely rela- 30. tive to the line of feed, to a direction longitudinally relative to the line of feed.

Complementary aims of this object are toprovide amachine that has free access to the stitching instrumentalities for convenient threading, 25 cleaning, and adjusting, whereby free space is provided for a large variety of attachments, readily adapting the machine to a wide variety of stitching requirements.

In the accomplishment of this object and the 30 various aims, a machine has been-developed with numerous advantageous features of construction, among which may be noted: an improved lower or work supporting arm, which is sturdy and easily cleaned, including novel cloth plates and 8d throat plates supported thereby, and which may,

he removed or changed one without the other;- the cloth plates being of various sizes all supportable on the one lower arm to change the machine from a flat bed type to'a cylindrical or up feed around the arm type, the arm having special supports so that it may be located and held with the head end projecting from a. table to permit feeding around the arm.

Further, this improved lower arm supports 45 interchangeable'throat plates, provided with an underlying adaptor, making possible the use of thin throat plates with thick cloth plates, independent removal of the plates, ample support for r the thin throat plate while providing plenty of 50 clearance for underlying loopers. It is another object of the present invention to provide an improved needle guard to thereby improve the stitching by having the needle or needles better directed and supported.

55 Features of the improved e d gua d include (Cl. 112--227l a gate which is sturdily supported by the lower arm, which can be easily moved clear of the needles, looper and teed dog for adjustments of any of the latter.

It is a further object of the present invention 5 to provide an improved support whereby needle loop spreaders may be interchanged without the necessity of disassembling the cloth plate from the arm. Thus, when changingvfrom a single needle to a double or triple needle set'up, and 10 when the throat plate is necessarily changed, the needle loop spreader of the present invention may be removed therewith and a double or triple loop spreader may be added to the arm again with the changed throat plate. 15

Another feature of this improved lower arm is that, despite its interchangeable characteristics, it may be made as an integral part 01 the main frame, and despite its small size it may be made very sturdy to withstand the stress and strain of operating multiple needles and loopers for gang stitching at high speed through thick, thin, and needle resistant materials. Further, this novel work supporting arm provides for the 'free passage of lint, grit, waste materials, and various substances that come from sewing to prevent an accumulation of such materials interfering with the regular operation of the machine, means being provided so that such foreign matter may pass through or out of the'way of working parts to avoid clogging.

Other features and advantages will appear hereinafter.

In the drawings: t

Figure l is a sectional View taken longitudinally 5 through the complete machine of the present inventlon.

Fig. 2 is aftransverse sectional view taken through the working or head end of the machine, taken on line 2-2 of Fig. l. 40

Fig. 3 is a transverse sectional view through the trunk end of the machine, taken on line 3-3 in Fig. 1. I

Fig. 4 is a horizontal sectional view, taken on line 4-4 in Fig. l.

Fig. 5 is a top sectional view taken on line 5-5 in Fig. 1 and shows the cloth plate removed.

Fig. 6 is a sectional view similar to Fig. 2 but shows the longitudinal type looper and the wide cloth plate in place on the lower arm, forming I of slide similar to that shown in Fig. 8.

prevents leakage Fig. 9 is a fragmentary top view of the needle guard. I

Fig. 10 is a sectional view through the front and outer end of the lower arm, showing. the front of the needle guard and the needle loop spreader.

Fig. 11 is a top view of the large cloth plate on a reduced scale.

Fig. l'2is a top view of the small cloth plate, shown, in Fig. 7, and shown by dot-and-dash lines in Fig. 4.

Fig. 13 is a top view of the adaptor plate.

Fig. 14 isfa top view of one form of throat plate.

, Fig. 15 is a top plan view of the loop spreader operating connection.

' The present invention is not limited tothe details of construction and arrangement-of parts illustrated in the accompanying drawings since the principles of the invention are capable of other embodiments. and the phraseology employed is for the-purpose of'description and notfor limitation.

Frame and trunk Referring now in detail to the drawings, the sewing machine of the present invention includes a frame l2 comprising a hollow trunk l3 for supporting a main driving mechanism I4, with a' preferably hollow and integral upper arm ii for supporting a needle operating mechanism i6, and

a preferably integral lower arm IT- for supporting looper and feeding mechanisms "3 and I9 respectively and for forming a work support 20.

In general it has a smooth outer finish for apmaking the original assembly or making subse quent repairs and adjustments. A cover plate 23 and a bottom .plate are provided for the top and bottom openings 21 and 28 re'spectively, and are held in place withscrews; End caps 3| and 32 are similarly held against the side walls 23 and 24 respectively by screws 3| and 32' to make a complete oil tight closure for the main operating parts.

' These openings andv caps permit bench assem-' bly .of the operating parts contained in the trunk of the machine and facilitate assembly thereof by making it possible to pass the main driving mechanism M or large sub-units thereof through the various openings. When the caps are secured thereto an efiective seal is provided which of oil while the machine is in operation.

- The upperarm l5 is preferably made with a substantially hollow chamber 33 and maybe of substantially rectangular and tapering cross section, with a transverse web 34 at the trunk end, and a similar transverse web 35 near a head 86 at the end of the arm, to support a main rock shaft 31'of the needle operating mechanism It. The head is provided with suitable bearings .33

and 39 for a needle bar 40. and a presser bar 4|,

see Figs. 1 and 2, and is provided with a large opening 42 to facilitate adiustments and repairs to the parts therein. This opening is normally closed with a cover plate 43, held in place by screws 43', to cover up the working mechanism and to prevent adverse escape of oil.

Lower arm (brief description).

thereto at this point in order to clearly describethe manner in which it supports the looper-mechanism l8 and the feeding mechanism i9. After the latter are described in detail the important features of the lower arm will be-described more fully.

Basically the lower arm ll comprises a front wall 44 and a rear wall 45 extending horizontally from the-trunk [3 in a direction parallel to and underlying the upper arm it. Although these arms may be secured to the trunk by screws or other well-known fastening means they are for with the trunk. In order to provide suitable bearings for important operating parts an end wall 46 is provided at the outer extremities of the front and rear walls 44 and 45 respectively and a shorter transverse web 41 is provided intermediate the end wall 46 and the-sides of the walls 44, 45, and 23.

Main driving mechanism The main driving mechanism i4 is described herein, first in connection with the transverse looper 62, illustrated in Figs. 1 through 5, and then briefly in connection with a longitudinal looper I34 shown in Figs. 6 and.7. The novel lower arm structure of the present application rigidity and economy preferably made integralis also equally applicable for use with the unibetween dividing plates 15 erably provided with a ball and socket and like connections l6, ll, 18, 19, and 80 respectively for connection to an arm 8|, bell crank 82, arms 83 and 84,.and link 85 at their endsoppositethe main drive shaft. for operating the needle operating and other. mechanisms all in .a manner about to be described.

This centrally located main drive shaft 64 sup- I ported in bearings and 81 brings the ha wheel 89 into a location where it may be very conveniently grasped without awkward twisting of the arm, and without danger ofskinning knuckles as occurs sometimes when the handwheel is close to the base of the machine. Forther, it makes possible the use of short crank arms to the various mechanisms, thereby over coming vibration and inertia of moving parts to a 'very marked extent. 1 This latter factor is enhanced by having the main drive shaft parallel the rocking and reciprocating,'rods of the various associated mechanisms.

Needle operating mechanism The needle driving mechanism I6 comprises the rocker rod 31 journaled in bearings 34' and 35' in the walls 34 and 35 respectively with an arm 8I secured to the trunk end thereof by a yoke 8i and having a bearing stud 90st its outer end connecting with the ball socket 76 at the upper end of the crank arm 65. At the head 39 end of the arm I5 the rocker rod 31 is provided with a needle driving arm 9I adjustably secured thereto by two screws 9I for adjusting the retracted and projected position of a needle 93 relative to the head 39 and the looper 62. This arm is connected to the hollow needle bar 40 through a double link 92 and link pin connections 92 (see Fig. 2). At its lower end the needle bar is adapted to interchangeably receive various types of needles 93 in the conventional manner. One .vertical reciprocation of the needle downward and upward is accomplished by the crank arm 65 each time the crank A on the main drive shaft 64 is given a complete revolution.

Transverse looper As shown in looper mechanism I8 includes a looper carrier 91 having. a pivot connection 98 projecting from a collar 99. The looper carrier 91 is provided with a hole I00 adapted to receive a looper 62 having a thread carrying and loop engaging blade IOI, held therein by a screw I02. Various types and shapes of loopers, depending upon the stitch formation desired, may be supported in the one carrier in this manner.

The collar 99 is rotatable on an upper rod I03, the latter being supported for reciprocatory movement in bearings I04 in thetrunk I3 and in the lower arm' I1. The collar is held against axial movement thereon by thrust collars I05 after the looper 62 is properly located with respect to the needle 93. Spacing between the collars I05 is just enough to prevent adverse axial movement of the collar 99 on the upper rod I03, yet sufficient to permit a free rotating or rocking movement on the rod.

In order to move the looper 62 relative to the needle in an elliptical path in the usual and well known manner to form a Federal Standard Stitch Style 401, the lower end of the looper carrier 91 is provided with a double pivot connection I06 to a lower rod I01 journaled in bearings I08 and the upper and lower rods I03 and I 01 respectively provided with driving connections I09 and I I0, see Figs. '1 through 5; The, connection I09 for the upper rod I03 includes the crank arm 99 hav-.

ing the ball and socket connection II with the crank B on the main drive shaft 64 and with-a ball and socket connection 'I! to the bell crank 92 pivotally mounted on-a cross shaft I II, the

bell crank having a ball and socket connection H2. The main connection IIO for the lower rocker rod I01 includes the crank arm 61 having the ball and socket connection I2 with the crank C on the main ,driveshaft 64 and having a ball and socket connection 18 to the front end of the arm 83 secured to the lower rocker rod" Reciprocation of theupper rod I03 moves the looper 62 from the solid line to the dot-and dash line position and vice versa, shown 'in Fig. 1, and rocking movement of the. lower rod, I01 moves the looper from solid line to the dot-and-dash line position shown in Fig. 2, all in timed relation with reciprocation of the needle 93. The lower rocker rod I 01, is held in desired'position lengthwise of the bed by collars I08'- engaging bearing Figs. 1 through 5 particularly, the

8 I08. The upper rod. I03, however, is not held against endwise movement since it must be reciprocated in the bearings I04 in order to impart rocking movement to the looper carrier 91.

Feeding mechanism The feeding mechanism I9 for moving materials through the machine comprises a feed rocker rod I I4 and a feed lifter rod I I5 mounted in suitable bearings in the lower arm I7 and the trunk I3. This mechanism is best seen in Figs. 2 and 5 and in a slightly modified form in Figs. 6 and 7. It comprises a feed dog 83 secured to a feed dog carrier l Ili as by screws ill, and this carrier in turn is connected to an arm II 9 adjustably clamped to the rock shaft I,I4 by a split clamp construction II9 through a spring I20 under 'screws HI and at its other end has a connection lift rod I I5. Any suitable feed dog, dependingupon material and stitch requirements, may be secured to the carrier as by the screws H1, and any suitable mating throat plate may be provided. Cooperating with the feed dog 63 is a presser foot I21 carried by the presser bar M, which is tubular and operated in the bushing 39 in the head 36 in the well known manner.

A connection I28, see Figs. 1, 3, 4, 5, including an .arm 84 connected by a yoke I30 between the feed lift rod I I 5 and a ball and socket connection 19 to the lower end of the crank arm 68 is provided to rock the feed lift rod. Thus, each time the crank D is given one complete turn, the lower end ofthe arm I24, see Figs. 2 and 5 through 7, is oscillated a predetermined extent and the spring 522 at the end thereof lifts the feed dog 63 from a position below the throat plate 49 to a position 'level with the top thereof or slightly above it to tent of feeding travel is regulated by an adjusting mechanism I33.

Longitudinal looper The feeding mechanism just described and the main driving mechanism I4 described hereinbefore are equally applicable with longitudinal looper I34, best seen in Figs. 6 and 7, having its main travel longitudinally or parallel with the line of feed. With this type of looper a. carrier 91' is rigidly secured to the upper rod I03 by a yoke 99 and is given a four-motion operation by reciprocating the rod I03 as with the crank arm 66 and bell crank 82 and is rocked as by having the crank arm 31 and associated parts connected to the upper rod I03 rather than to the lower rod, described more fully in the co-pending application Serial No. 745,343 filed Sept. 24, 1934, of which this is a continuation in part. This copending application also discloses and describes a universal looper mechanism in detail. These three forms of looper, viz., transverse, longitudinal, and universal are equally applicable for use in the novel lower arm forming the main subject matter of this application.

Lower arm (detailed description) The lower arm I1 is preferably made integral with the frame I2, with a front wall 44 and a rear wall 45 extending horizontally from. the trunk I3 in a direction parallel to'and underlying the upper arm I5. In order to make thesewalls rigid or sturdy at the outer extremities, and inorder to provide suitable bearings for important operating parts, an end wall 46 is provided at their outer extremities and a shorter transverse web 41 is provided intermediate the'end wall'46 and the sides of the walls 44, 45, and 23. Thus, the lower arm I! provides a sturdy. nonvibrating support for both the feed mechanism I9 and the looper mechanism l8, detailed description of which is given hereinbefore. Also, the arm is provided with a foot I I for supporting and securing the machine to a bench and for allowing the outer end thereof to be free and clear of the bench or table.

The lower arm I! is arranged to provide a work support of a short height and width, and to provide a sturdy and quickly interchangeable support for a throatplate 49. Supports 58, M,

and 52, best seen in Fig. 5, are provided on the front wall 44 and associated rear lugs 53, 5t, and 55, are provided on the rear wall $5 to form a support for the 'wide and large area cloth plate 56,. best seen in Figs. 4, 6, and 11, which may be secured thereto by screws 5'! entering tapped holes 51', or may likewise and interchangeably support a narrow and small area cloth plate 5% as shown in Figs. 7, 12 and by dot-and-dash lines in Fig. 4.

These wide and narrow c'loth plates 5% and 58 and. the interchangeable characteristics thereof are a very important feature of the present invention. In most cases a machine of the so calledfeed across the arm type with a wide cloth plate for long straight run sewing is preferred.

However, for certain kinds of work, for example the sewing of bloomers, stocking tops, trouser ends, etc. a so called cylindrical or feed. around the arm type of machine is required.

Ordinarily a manufacturer or user of sewin machines must have-separate machines for each type of sewing. So far as applicant isaware the present invention is the first to provide structure for changing from one to the other type of machine, which results in' a'conslderable sav ing of investment in machinery and considerably reduces the amount of floor and bench space required.

The cloth plates 56 and of thick material for strength and rigidity and areprovided with a depthwise cut-out or aperture 59, adapted to merely locate and not to support an adaptor i0 and the throat plate 49. As may best be seen in Figs. 1, 2, 3, 4-, and 5, the lugs 50, ii, 53, and 54 are adapted to directly support the adaptor I and the throat plate, the latter to the adaptor by screws GI threaded into holes I.

throat plates may be provided with various cutouts to accommodate various stitching combinations, difierentholes. 937 to accommodate needle gauges for lightand heavy work, and various feed dogs. The main purpose of the adaptor 8| is to make possible the use with relatively thin throat plates 4!. both resting upon the same bosses and more particularly to form a clearance for loopers 62, and feed dog ll,

2, and 5..

This adaptor. to some new support roitransverse wall 41, with a ,of reduced size' and preferably with a cover 94 58 are normally made.

Interchangeable of t link I".

of a thick cloth plate I aieaeea v pressure from the needle when operating on heavy materials, and prevents deflection under heavy pressure of the presser foot. In addition, this arrangement of parts' is such that the change-over from the wide cloth plate 56 to the narrow cloth plate 58, and in effect the change from a flat bed to a cylindrical machine, may be changes, or adjustments to the feed dog or looper forming 'instrumentalities located in the lower arm Ii.

Thus, the present invention provides a work support 20 which is capable of a wide variety of uses, and which may be easily and quickly changed from one type of machine to another.

Preferably the walls 44, 45, 46, and'ii form-a chamber 94 to house and sturdily support the looper and other operating instrumentalities, with an open top and with an aperture or notch 44' in the front wall 45 to facilitate replacing and adjusting these instrumentalities.

If preferred, the work support 26 may be modified slightly at the outer end of the arm fli so that small diameter articles may be slipped in place thereon and sewed around the arm. As shown in Fig. '7 this modified structure comprises the omission of the front wall ie between the transverse end wall 46' and the intermediate modified end wall 46' to prevent the work from engaging the moving instrumentalities at that point. The foot I I1 allows this modified end to project from the bench or work table.

Loop spreader A novel loop spreader mechanism I38 including a slide I39 is illustrated in Figs. 8, 8A, 9, 10, 13, 14,.and 15 which, through pins I40 and MI,

' link I42,.and connection I43 is operated by the upper rod I03 coordinately with the looper. This loop spreader slide I39 operates in the channel I44 on the under side of the throat plate 49 so as to properly be guided thereby, its location being in advance of the needles 93. This slide is provided with a, thread engaging hook I45 when the machine is used'fo'r making stitch formation Federal Standard Stitch Type No. 401; or more hooks I45, as shown by dot-and-dash lines in Fig. 8, if the machine-is arranged for making ornamental stitches, in which case the loop spreader may serve two needles, passing from one instance as shown and described to the other, for

June5, 1934, to J. P. weis in Patent-1,961,950 of erates on ball stud I carried by an armfl'lll of a bell crank I'll, on a fixed shaft I12. The bell crank in has an upwardly projectlngarm fll to which is pivotally connected on a pin l4l alink I42, having a pivot pin connection I40 to a downwardly projecting lug formed as part of the loop spreader slide I39. I v The spreader may be arranged with more than one supplementary hook I45 to serve three or more needlesrras the case maybe, for making ornamental stitches. This arrangement of parts is through suitable enlarged apertures simple in construction and positive in action. The throat plate 49 forms the principal guide and bearing for the' slide I39 while the adaptor plate 60 upon which the throat plate is supported holds the slide I39 in channel I44 and permits endwise movement of the loop spreader under the action of its driving mechanism I43 without side the throat plate and adaptor plate without re moving the cloth plate.

Needle guard In addition this novel shaped work support 20 provided by thepresent invention furnishes an advantageous needle guard I48, see Figs. 2, '7, 9,

and 10, adapted to guide or support a single needle 93 near the bottom of its travel, and to prevent the needle from being twisted or bowed by heavy materials or excessive pulling on the stitched materials while down, and particularly to alignand maintain in alignment a plurality of needles, thereby insuring a more positive and efiicient high speed operation of the machine and insuring high quality stitch formation.

This needle' guard mechanism as at present preferred is best illustrated in Figs. 9 and 10 particularly, and comprises a gate I49 pivotally mounted on a stud I50 threaded into the end wall 46 so that it may be moved to an inoperative position shown by dot-and-dash-lines I49, but which is normally supported in the operative position 'shown by full lines in Fig. 9 with'the outer or free end thereof riding or resting upon a long stud II, and stopped in the operative position by engaging an end of an adjustable stud I52 threaded into the lug 54 and locked in adjusted position by a nut I53.

Normally the gate I49 is urged out to an inoperative position by a spring I54 so that the gate will not be half open or slightly open which would break loopers and needles when-the latter are operated. By urging it to the open position, the operator can also more easily thread the loopers. The gate is locked in the operative. position by a spring latch I56 engaging therear end thereof. Preferably this latch is provided with a bevel I51 so that it need not be pushed back manually when the gate is moved from the inoperative to the operative position. The position of the needle at the lower end of its stroke relative to the guard I48 is clearly shown in Figs. 6 and 10. Multiple needles would, of course, be similarly located in any desired spaced relation lengthwise of the gate. The gate itself'may be made of one piece construction and hardenedto prevent wear from' the needle; however, it is preferably provided with a hardened angular or like plate I58 held onto the top of the gate by two screws I59 passed I60 and threaded into the gate proper so that minor adjustments and movement to compensate for wear guard I48 or the plate I58 thereon may be provided with holes ISI or notches I62 to guide needles.

In order to move the needle guard gate I49 to the inoperative position, it is merely necessary to push against the finger I63, Fig. 9, until the end of the gate is clear. The front wall 44 is provided with a cut out M which enables an operator to reach inwith his fingers to manipulate the gate. However, fine adjustments of the guard I48 relative to the needle 53, or adjustment of multiple needles relative to the guard may be accomplished best by removal of the throat plate 49 and adaptor plate till.

It is thus seen that the latch I56 provides a releasable means for continuously holding the needle guard Mill in an operative position, that is, for holding the needle guard in an operative position for a period of operation of the sewing ma-- chine covering a plurality of reciprocations of the needle.

In the present application subject matter in common with the parent application Ser. No.

745,343, filed September 24, 1934, embraces substantially all the structure excepting only the modified needle loop spreader slide I39 shown in Fig. 8A and the modified shape or structure at the outer end of the lower arm I"! as shown in Fig. 7 which forms the continuation in part of subject matter of the present application.

If preferred the throat plate and adapter may be made of one piece, but for economy in manufacturing cost and for operating advantages are made separately as shown and described herein. Although not described in detail, it should be understood that the present invention is equally applicable for use with multiple needles and multiple loopers.

Other variations and modifications may be made within the scope of the'present invention and portions of the improvements maybe used without others.

Having thus explained the nature of our said invention and described a way of constructing and using the same, although without attempting to set forth all the forms in which it may be made, or all of the modes of its use, we claim:

1. In a sewing machine the combination of a frame; an upper arm; a reciprocating needle in said upper arm; a pair of side walls projecting horizontally from said frame; a transverse wall at the outer end of said projecting walls and with the latter forming a chamber for enclosing and supporting operating instrumentallties, said chamber having an open top and an aperture in one of the side walls; and a needle guard arcuate- 1y movable from an operative position relative to the reciprocating needle and partially closing said opentop intd an inoperative position partially through the aperture in the side wall.

2. In a sewing machine the combination of a frame; an upper arm; a reciprocating needle in .the upper arm; a'work support; a needle guard for guiding the needle near the bottom of the travel, pivotally. carried by said work support for pivotal movement in a fixed path into operative and inoperative positions relative .to the reciprocating needle; and releasable means for continuously holding said guard in the operative position during the reciprocation of the needle. 3. In a sewing machine the combination of a frame; an upper arm; a reciprocating needle carried. by the upper arm; a lower arm projecting from the frame; an end wall on said lower arm; a needle guard on said end wall and movable thereon into operative and inoperative positions relative tothe reciprocating needle; and a latch for locking said guard in the operative position.

In a sewing machine the combination of a frame; an upper arm; a reciprocating needle carried by the upper arm; a lower arm projecting from the frame; a needle guard for guiding the needle near the bottom of its travel, pivotally mounted on the lower arm for arcuate movement in a fixed path into operative and inoperative positions relative to the reciprocating needle; and releasable means for continuously holding said guard in the operative position during the reciprocation of the needle.

5. In a sewing machine'the combination of a frame; an upper arm; a reciprocating needle carried by the upper arm; a'lower arm projecting from the frame; a chamber in said lower arm; a needle guard gate pivotally mounted in said chamber for arcuate movement in a fixed path transverse the line of needle travel into operative and inoperative positions relative to' the reciprocating needle; means forcontinuously holding said needle guard gate in the operative i position during the reciprocation of the needle; and a needle guard plate adjustably secured to said gate. 2

6. In a sewing machine the combination of a frame; on upper arm; a reciprocating needle needle guard into the inoperative carried by thesupper arm; a lower arm projecting from the frame; a needle guard pivotally mounted on the lower arm for arcuate movement into operative and inoperative positions relative continuously holding said guard in the operative position;'and means for normally urging said position. 8; In a sewing machine the combination of a greases frame; amovable needle carrier; a needle in said carrier; an arm projecting from said frame; a

gate constituting a needle guard for cooperation with the needle, pivotally mounted on said am and movable into operative and inoperative positions relative to said movable needle; resilient means for normally urging said needle guard into' the inoperative position; and releasable means for continuously holding said guard in the operative position.

9. In a sewing machine the combination of a frame; a movable needle; a lower arm projecting from said frame; a needle guard in said lower arm and movable into operative and inoperative positions relative to the movable needle, and a mounted in said arm for arcuate movement into operative and inoperative position relative to the movable needle; a latch means for locking said guard in theoperative position; and a needleguard plate adjustably secured to said gate.

11. In a sewing machine the combination of a support; ,a movable needle; a needle guard for guarding the needle near the bottom of its travel, pivotally mounted on said-support and movable into operative and inoperative'positions relative to the movable needle; and latch means forholding said guard" in the operative position.

12. In a sewing machine the combination of a support; a movable needle; a needle guard for cooperation with the needle. pivotally mounted onsaid support'and movable into operative and inoperative positions relative to the movable needle; resilient means for normally urging said needle guard into the inoperative position; and latch means for holding said guard in theoperative position.

JOHN P. WEIS. FREDERICK F.

w GERI'IFIGATE or CQRRECTION, .r anneal,

January 1', 1939 I e JOlIN P. w ns, ET AL. e It is hereby certified that error appears in the printed specification of theabove numbered'patent requiring correction as follows: Page 6, second column,.line 29, claim '11, f or the word "guarding" read'guiding; and that the-said Letters Patent-should be. read with this correction therein that th"aQB nay confo'm to the record of the case in the ria tent Office.

Si'gned and sealed this hth day ofjlipril, A. 13.1959

Henry Van Arsdal e e Aet ing commissioner of Patents.

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