US2079317A

US2079317A - Sewing machine attachment

Info

Publication number: US2079317A
Application number: US105782A
Authority: US
Inventors: Helle Earl
Original assignee: LLOYD M MCCLURE
Current assignee: LLOYD M MCCLURE
Priority date: 1936-10-15
Filing date: 1936-10-15
Publication date: 1937-05-04
Anticipated expiration: 1954-05-04

Description

May 4, 1937. V 1 HELLE 2,079,317

SEWING MACHINE ATTACHMENT Filed Oct. 15, 1936 SSheets-Sheet l In veniqr A iiofne s May4, 1937. E. HELLE f 2,079,317

' SEWING MACHINE ATTACHMENT Fil ed Oct. 15, 1936 3 Sheets-Sheet 2 Inventor Ear/ fi e/A2 Attorneys May 4, l937. E. HELLE SEWING MACHINE ATTACHMENT Filed Oct. 15, 1936 3 Sheets-Sheet 3 Inventor Zar/ f/e/fiz Attorneys Pat nted M y 1937 R E l S S u E D 2,079,317

MAR 181941 V UNITED sterner-Ar u OFFICE SEWING MACHINE ATTACHMENT Earl Helle, Beardstown, Ill., assignor of fifty per cent to Lloyd M. McClure, Beardstown, 111.

Application October 15, 1936, Serial No. 105,782

4 Claims. (Cl. 112-79) This invention relates broadly to sewing malike I9 is a head plate 6 that is adjusted to rechines and more particularly to an attachment place the regular head plate on a sewing machine.

therefor for the purpose of rendering the ma- Further in accordance with the present invenchine useful in making what is generally known tion, there is attached to the bottom end of the 5 in the art as hooked rugs. regular needle bar 5 of the sewing machine a 6 An object of the present invention is to prosleeve-like head I 4. vide an attachment of the character suggested The plate 8 is formed to provide on the inner which may be readily and easily applied to the side thereof a fixed guide sleeve I in which the machine, and which when so applied will facilishank 9 of a punching needle 8 works. The

10 tate to a great extent, the making of hooked punching needle 8 is secured to the lower end 1 rugs. of the shank 9 through the medium of a screw ll.

i The present invention is also characterized by The shank 9 of the needle 8 is provided with the provision of a pair of slidably mounted neea guide slot 911 in which the shank 10 of a yarn dles movable in opposite directions relative to pushing needle Illa has a sliding fit.

one another with one serving to punch a hole Laterally mounted on the shank 9 of needle through the work, and the other serving to push 8 is a roller l6 which operates in the slot la the yarn through the hole as a part of the operprovided therefor in guide sleeve I, and extends ation in the making or fabricating of hooked into a notch Zla provided in a lever 2|, hereinrugs or similar articles. after more specificallyreferred to.

The invention, together with its objects and Arranged in the path of the roller I6 is the 20* advantages will be best understood from a study angularly disposed end 1a of a lug I provided of the following description taken in connecon one edge of a plate lb secured to and spaced tion with the accompanying drawings wherein:- from the lever 2| and as indicated generally Figure l is an elevational view illustrating the at 22.

application of the invention to a sewing ma- The lever 21 at one end is pivoted to the head 251 chine. plate 5 as at 15, while at its relatively opposite Fig. 2 is an elevational view viewing the atend the lever 2| is provided with a slot M in tachment from the side thereof opposite to that which it works a pin 23 projecting laterally from shown in Fig. 1. the head I4.

Fig. 3 is a bottom plan view of the attachment Threaded through the lug end To is a spring 3 with certain parts broken away and shown in tensioned bolt or screw l I that has its inner end section. arranged to bear on the aforementioned roller Fig. 4 is an elevational View of a lever member. 16. Thus it will be seen that as lever 2| swings Fig. 5 is a detail view showing the hole punchupwardly or in a counter clockwise direction the ,ing and the yarn pushing needles assembled. lower edge of slot 2 la engages the roller [6 35 Fig. 6 is an elevational view of the hole punchmounted on the shank 9 of needle 8 causing neeing needle. dle 8 to move upwardly. Also, as lever 2| swings I Fig. 7 is a side edge elevational view of the downwardly or in a clockwise direction the screw yarn follower or pushing needle. ll engages the laterally extending roller IS with Fig. 8 is a plan view of a guide. the result that this downward movement of lever 40 Fig. 9 is a fragmentary perspective view of a 2| is transmitted to the shank 9 of needle 8 for bracket plate illustrating certain details hereinmoving needle 8 downwardly. Thus it will be after more fully referred to, and clearly seen that the movement of the lever 2| Fig. 10 is a perspective view of a lug equipped is transmitted to the needle 8 for raising and plate hereinafter more fully referred to. lowering the same. To vary the length of move- 45 Referring more in detail to the drawings, it ment of needle 8 as may be required for differwill be seen that in the preferred embodiment ent materials screw II is adjusted relative to thereof, the invention comprises an attachment roller l6 as may be required to cause the needle plate 2 adapted to replace the regular bobbin to move more or less deeply into the material to cover on a sewing machine. Plate 2 is provided allow for the entry of heavy, or light yarn, respec- 50 with an angular material guide 3 provided with tively. a slot 3a for a purpose hereinafter made mani- Further in connection with the operation of fest. the device it will be understood that the needle Also attached to the head of the sewing ma- 8 is provided with the usual eye 8a through which I chine through the medium of the screws or the the yarn is threaded, the ball of yarn or other 55 material being held on the lap of the operator or in any convenient receptacle on the table of the sewing machine as may be found desirable. I

The eye of the needle 8 serves to hold the yarn in position for the operation of the punch bar llla, it being understood that the punch bar Illa serves to carry the yarn through the burlap, canvas or other material incidental to the punching of a hole in the burlap or canvas.

ing therefrom an apertured lug ltb to which is i pivoted as at l2 one end of a lever 4. Intermediate its ends, the lever 4 is provided with a slot [3 which accommodates a pin [3a projecting laterally from the inner side of the head plate 6. At its lower end, the lever '4 is provided with a slot Ma to receive the aforementioned pin 23. Thus it will be seen "that the movement of the needle bar5 will also be transmitted through the medium of the lever 4 to the yarn pushing needle l8a for moving the needle Illa up and down relative to the needle 8 for pushing the yarn through the hole first punched by the needle 8 in the burlap or other fabric carrying the design of the hooked rug being made.

From the description of the invention thus far, it will be seen that as the lever 2|, in response to the upward movement of the needle bar 5 swings on its pivot l5, in a counter-clockwise direction needle 8 will be caused to move upwardly, while at the same time lever 4 in response to the upward movement of the needle bar 5 will also swing in a counter-clockwise direction for transmitting a downward movement to the needle Illa, to the end that the needles 8 and Illa slide relative to one another and in reverse directions with respect to one another.

For accommodating the lug I to, the guide tube I is provided at one side thereof with a suitable slot I b as shown in Fig. 9.; Also, and as will be clear from a study of Figs. 1 and 2, slot 3a accommodates the needles 8 and Illa.

In actual practice, the material is fed over the guide 3 and with the sewing machine in operation, first the hole punching needle 8 moves downwardly through the slot 3a to punch a hole in the cloth. Manifestly, the hole punching needle 8 will move downwardly in response to the downward movement of the needle bar 5. As the needle bar 5 begins to rise, the hole punching needle 8 will also begin to rise while the needle Ella will start downwardly. The timing of the operation is such that before the punch needle 8 is actually withdrawn from the work, needle Illa engages the yarn for forcing the yarn through the holesmade by the needle 8. Due to the differences in the lengths of levers 2| and 4, the punch needle 8 has suflicient time to operate before the same rises from the goods for the next stitch; and further, this difference in length between the levers, together with the position of their respective fulcrums l5, I3 brings about the opposite motions of the needles 8 and ma.

The plate 6 is also provided with a suitably The shank Ill of the needle lflahas project-' located slot 28 to accommodate the usual thread invention of this character will be had without a more detailed description.

ll llaving thus described the invention, what is claimed as new is:

1. In combination with a sewing machine having a head and a reciprocating needle bar, an attachment plate set on the base of the machine and serving as a bobbin cover, said plate having a material guide rising therefrom, and said guide having a lateral end portion provided with a slot, a plate secured to the head of the machine and provided with a tubular guide formation, a hole punching needle having a sliding fit in said tubular guide formation and a working end adapted to pass through the slot in said guide incidental to punching a hole in the material, a needle forpushing yarn through the hole punched by the punching needle and having a sliding fit with the hole punching needle, and

mechanism operatively connecting the needle bar of the sewing machine with the hole punching needle and the yarn pushing needle respec-. tively for transmitting movement of the needle.

bar to the hole punching and yarn pushing needles respectively for reciprocating said needles in reverse directions relative to one another.

2. In combination with a sewing machine having a head and a reciprocating needle bar,'an 7 attachment plate set on the base of the machine and serving as a bobbin cover, said plate'having p a material guide rising therefrom, and said guide having a lateral end portion provided with a slot, a plate secured to the head of the machine and provided with a tubular guide formation, a hole punching needle having a sliding fit in said tubular guide formation and a working end, adapted to pass through the slot in said guide incidental to punching a hole in the material, a needle for pushing yarn through the hole punched by the punching needle and having a sliding fit with the hole punching needle, mechanism operatively connecting the needle bar of the sewing machine with the hole punching needle and the yarn pushing needle respectively for transmitting movement of the needle bar to the hole punching and yarn pushing needles respectively for reciprocating said needles in reverse directions relative to one another, said mechanism including a lever pivoted at one end to said plate and having at its respective opposite end a lost motion connection with said needle bar, and interengaging means on the hole punching needle and on said lever for transmitting movement of said lever to the hole punching needle.

3. In combination with a sewing machine having a head and a reciprocating needle v bar, an.

slot, a plate secured to the head of the machine and provided with a tubular guide formation, a hole punching needle having a sliding fit in said tubular guide formation and a working end adapted to pass through the slot in said guide incidental to punching a hole in the material, a needle for pushing yarn through the hole punched by the punching needle and having a sliding fit with the hole punching needle, mechanism operatively connecting the needle bar of the sewing machine with the hole punching nee-,

dle and the yarn pushing needle respectively for transmitting movement of the needle bar to the hole punching and yarn pushing needles respectively for reciprocating the said needles in reverse directions relative to one another, said mechanism including a lever pivoted at one end to said plate and having at its respective opposite end a lost motion connection with said needle bar, interengaging means on the hole punching needle and on said lever for transmitting movement of said lever to the hole punching needle, and a second lever pivoted intermediate its ends to said plate and having one end pivoted to the yarn pushing needle, and at its respective opposite end having a lost motion connection with said needle bar.

4. In an attachment for sewing machines, a plate adapted to be attached to the head of a sewing machine in the place of the usual head plate, said attaching plate being provided intermediate its ends with a tubular guide formation, a pair of nested needles having a working fit within said tubular guide formation and including a hole punching needle and a yarn forcing needle, said hole punching and yarn forcing needles being mounted for sliding movement in reverse directions relative to one another, and mechanism connecting said needles with the usual needle bar of the sewing machine for transmitting movement of the needle bar tosaid needles.

EARL I-IELLE.