US999024A - Sewing-machine. - Google Patents

Description

W. P. GAMMONS, JR.

SEWING MACHINE. APPLIOATION FILED FEB. 26, 1910.

Patented July 25, 1911.

2 SHEETS-SHEET Z.

INVEINTOR A ORNEYS WITNESSES: 8. 0 024g W. P. GAMMONS, JR-

SEWING MAGHINE. v Anne-Anon FILED FEB. 26, 1910.

Patented July 25, 1911 ATTO EYS 2 3HEBTS-SHEET 1.

ELCOME P. GAMMONS, JR., OF NEW YORK, N. Y.

SEWING-MACHINE.

' Specification of Letters Patent.

Patented July 25. 101 i.

Application filed February 26, 1910. Serial No. 546,178.

To all whom it may concern:

Be it l ll()\Vll.tlltlt I, "WELCOME P. GAM- MONS, Jr., a'citizen of the United States, residing at New York, in the county of New York and State of New York, hare in:

ing drawings, and to figures of reference marked thereon, which form a part of this specification.

This invention relates to an improved sewing machine, and is particularly designed for machines employed in sewing the leather bands or sweat bands in hats, and is designed to provide means for perforating the band and the material of the hat-before the entrance of the needle, and perforating it with a tool or awl that enters the material from the side of the body portion of the hat and the sweat band opposite to the one from which the needle enters. lVhen a needle alone is used and it enters the body portion of the hat and the sweat band, when it emerges through the leather, it forces the leather out slightly before it perforates it,-

and when a series of these stitches are made there are very slight raised portions around each perforation, which, while they are slight, form a series of little knobs or per-v forations and the surface of the sweat band is not absolutely srn00th.

vBy my machine the awl enters the leather from the same side that the needle emerges from, and before the needle is. used, and punches a hole in the leather so that when the needle comes through the hole it does not have to push the leather out before it perforates it, and when thesewing is completed the surface of the leather is smooth and fiat.

The device is used on machines that embody an arm carrying a presser-footwhich holds the hat body and the leather up againsta feeding wheel, and comprises a detachable connection between the awl and the'operating device therefor so that the parts can be detached to permit the arm to beswung up so that the hat can be removed from the machine;

Anotherobject of the invention 1s to provide the feeding means aforesaid with an actuating mechanism thatis of smooth opcration and positive. 1

The invention is illustrated in the accompanying drawings in which Figure 1 is a side view of a machine, the shield being partly broken away. Fig. 2 is a top view of the machine. Fig. 3 is a-section on line 3, in Fig. 2. Fig'. 4 is a section on line at, 4, in Fig. 2 showing the operating mechanism for the awl, and Fig. 5 is a detail view showing the means for operating the feeding wheel.

The machine comprises a frame or casing 10 in which is mounted a driving shaft 11 driven by a pulley 13 which is provided with the usual form of groove 14 in which a belt is placed by which the machine is operated. The machine is provided, on its front, "with a bracket 15 on which is mounted a support 16 which has a ashield 17 thereon, which shield is preferably semi-circular and made of sheet material against which the hat body and the leather is pressed by means'of the presser-foot18 which is mounted on the end of a right-angled arm 19 which is pivoted at its back end, as at 20, to a bell crank 21, the other end of which is connected with a spring 22 which is fastened to the machine, and this spring thus acts to pull the arm back, the

arm swinging in the links 23 and 24, each of which has a screw 25 therein, the screw receiving a slot 26, in each side of the arm,

so that thearm can be lifted from the screwsterial of the hat, along with the sweat band as shown in Fig. 3, against a serrated edge 29 of a feeding wheel 30 which 1s mounted on a shaft 31 on the end of which is a gear Wheel 32 which meshes'with a' small pinion 33 on a shaft 34, which shaft is provided with-a worm ear 35 which is driven by a worm 36 Whic is of a special construction and which I mount on the driving shaft 11 and illustrate it in detail in Figs. 2 and 5.-

The screw or thread 37 of the worm is formed straight, that is, without anypitch, and for the largest portlon of their clrcum- 1 fcrence the threads ave an alined pitch for a short distance, as at 38, so that they act,

when rotating withthe straight: the thread in engagement with ahec orm gear 35, as a lock to hold the; artBi aiidZthe' feed wheel 30 steady and fe ing lthe' ffe'dwheel the required distance. jWhenf'theam-i gular' portion 38 of the threads-engages worm gear 35, the worm gear"and .cpnse{ quently the gears 33 and aa'ana {the "feed? wheelBO are all advancedwthe a'equireddistance so as to feed the hatpj ndf thef; sweat band for' the next stitch. driving-shaft 11,has a cam 39-thereon which operates inai I yoke 40 to reciprocate the needle bar 41- which has secured initsfront end the needle-42 which operates in the usual manner of sewing machines and is reciprocated' through" the portion 43 (see Fig. 3) which forms. the bend where the-hat body and the brim meet, and also throu h the leather 44 which forms the sweat-ban of the hat. -Between.these reciproeations the feeding of the hat takes place, the needle being assistedin making the stitch by a looper '45, shown in Figs. .1 and 2, which is operated by any of the: well known mechanisms for the; 'urpose', and is not illustrated in detail in this case. I

Projecting from the arm 19 is a lug '46 on the end of which is pivoted a lever 47 which is swung by-means of .a rod48 which reciprocates in the casing and is pivotally con- 4 'nected with the lever 47 and. detachably secured theretopreferably by means of a' pin 49 having a handle 50 thereon and being a I provided with a splithead 51 which, when subjected to a pull or jerk, will be released and permit the separation of the rod 48 and the lever 47. The rod 48 is reciprocated by having the finger 52, -which is secured vto the ,rod 48', forced back by a nose 5 1.011 the disk 54. This pushes the rod 48 back in one dis .rection and causes the lever-47 to swing so that the awl 55, which is heldinthe .end of the lever 47, is forced into the sweat band 44 and through the portion 43 0f the hat so that the hole is made through the sweat band first and then through the hat so that the slightridge which is formed around the perforation made in the sweat band, is formed on the side of the sweat band toward the hat body and is not apparent when'the stitching by the needle has been completed. Ordinarily when the needle is the firs l ment to be forced through the sweat band, after it has penetrated the hat body, the material around the holemade in the sweat band forms a little ridge, and does not make a very good appearance around the inner edge of the sweat band, when the sweat hand is'sewed in by the old method. Whenthe' nose 53 passes beyond the finger 52, the

spring 56 operating against the collar 57' 'quickly forces the lever 47 back to withdraw.

the awl from the hat and the sweat'band, The awl is held in the end of thelever 47 by anygwell known means, but I prefer to hold "nose 53 engages the finger- 52 and 60.'h .aving'; a handle 61,]shown Figs. 1

them and hold it securely in place. I

thefgh at the distance of"'one stitch .thenathe through the medium of' the Tod '48, -swings' the] lever .47 andthe aw1F55 sothatjthe=awl--is forced through the sweat bandjtoperforate m 1t, andiis preferably-alsrrswung farenough to perforate the material 'ofvthe hat 'body; As soon as theawl is perforated far'enou'gh,

the finger-52 is' releasedf from the-nosef-53.

and the springjti snaps the lever 4 7 -fback into'place and then' the eccentric or cam 39} operates the needlebaqto sew a' stitch through the perforation, made by the awl 55.- As soon as the needle is withdrawn onfits backward movement, the "feeding again takes place-and the above'foperation is re-' peated. The arm 19 .isnormally held down I on the links 23and 24 by means of 'a latch and2; HtWlngthus describe my invention, what; claim is I I. A sewing machinecomprising a needle' bar having a needle thereon means for operating the needle'bar, an arm projecting from 10o.-

the front ofithemachine and carrying a presser-footto, engage the material to be sewed, a lever arranged to swing on'one end v on the arm, an awl secured'onlthe projecting end of the lever andadaptedzto enter the material to be'sewed on the side opposite to that entered by the needle, a rod secured to l the lever between its pivot and the awl, and.

vmeans forrec-iprocating the rod to cause the 1 awl totente'r the materialto be sewed, the awl when withdrawn being adapted to be moved aside from the path of the needle by the swing of the lever. i

2. A sewing machine comprising a needle bar having aneedle thereon, means for re- ,1

ciprocating the needle bar, an arm projecting forwardly and downwardly on the machine and having a presser-foot on its end for engaging-the material to be sewed, a ilever pivotally attached on one end of the arm :2 1

and arranged to swing thereon, an awl ,carried bythe lever, means for detachably se' curing the awl in the end of the lever, a rod, means for detachably securing the rod to the lever between the awl and the pivot of the lever, and means for reciprocating the rod to cause, the awl to-enterthe material to be sewed from the side opposite to the side entered by the needle, the awl When with drawn being adaptedto be moved aside 1 bar having a needle thereon, means for oper ating the needle bar, an arm, a resser-foot on the arm, a lever swinging from one end on the arm, means for securing an awl in the end of the lever, a rod, a pin for pivotally pivotally secured at awl, means for detachably securing the awl and detachably securing the arm to the lever, means for operating the rod in one direction to cause the awl to enter the material to he sewed from the side opposite to that entered by the needle, and a spring to cause the return of the rod and the withdrawal of the awl when the rod operating means is disengaged.

4. A sewing machine comprising a needle bar having a needle thereon, means for operating the needle bar, an arm adapted to swing, a presser-foot on the arm, a lever one end to the arm, an

to the end of the lever, a rod, a pin having an enlarged split head for detachably and pivotally securing the rod and the lever together, a finger on the rod, means for engaging the finger to operate it in one direction for causing. the awl to enter the material from the side opposite to that entered by the needle, and a spring on the rod to operate the rod to cause the withdrawal of the awl when the finger is disengaged.

5. A sewing machine comprising a casing, a drive shaft in the casing, a needle bar, a needle on the needle bar, means on the drive shaft for operating the needle bar, a rod arranged to reciprocate in the casing, a finger on the rod, a disk on the drive shaft, a nose on the disk to engage the finger to operate the rod in one direction, a spring arranged to operate the rod in the other direction when the fin er is disengaged, an awl adapted to enter 't the rod.

e material from the side opposite to the side entered by the needle, and an operative connection between the awl and 6. A sewing machine comprising a casing, a drive shaft in the casing, a needle bar, a

needle on the needle bar, means on the drive shaft for operating the needle bar, a rod arranged to reciprocate in the casing, a finger on the rod, a disk on the drive shaft, a nose on the disk to engage the finger to operate the rod in one direction, a spring arranged to operate the rod in the other direction when the finger is disengaged, an awl adapted to enter the material from the side opposite to the side entered by the needle, a lever secured on one end, means for detachably securing the awl to the lever, and means for detachablysecuring the rod to the lever.

7. A sewing machine comprising a. casing, a driveshaft in the casing, a needle bar arranged to reciprocate in the casing, a needle on the needle bar, means for operating the needle bar from the drive shaft, an arm, a presser-foot on the arm, a lever suspended from the arm, an awl secured inthe end of the lever and adapted to enter the material from the side opposite to that entered by the needle, a rod adapted to reciprocate in the casing, means for connecting the rod with the lever, means for reciprocating the rod from the drive shaft in one direction, a spring for operating the rod when the reciprocating means is disengaged, a feed wheel adapted to engage the material being sewed,

a worm on the drive shaft having threads without a pitch except for a small portion of their circumference, a worm gear adapted to be operated by the pitched part of the thread of the worm and to be locked by the straight portion of the thread of the worm, and an operative connection between the worm gear and the feed wheel.

In testimony, that I claim the foregoing, I have hereunto set my hand this 24th day of February 1910. p v 9 WELCOME P. GAMMONS, JR. Witnesses:

' E. A. PELL,

WM. H. CAMFIELD.

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