US1990284A - Sewing machine hemmer - Google Patents

Description

Feb. 5 1935. Q ND n 1,990,284

SEWING MACHINE HEMMER Original Fi led April 26, 1953 2 Sheets-Sheet 1 Inventor ar/P613? Zihdi Feb. 5, 1935. c. B. HINDS I SEWING MACHINE HEMMER Original Filed April 26, 1935 2 Sheets-Sheet 2 r w. m m

,4 Mar ne y Patented Feb. 5, 1935 SEWING MACHINE .in-EMMea 1' enniesennett Haas; stream, Pa.

ApplicationApi-il 26,11933, Serial No. 668,113 Renewed November 28; 1984- This invention relates:to a --henr'uner attach ment for sewing machines;andthe object of the invention is to provide :such an attachment which maybe readily mounted on any conventional type -l of sewing machinaandina mannertobe readily bodiment of the invention,

It is understood that the invention is not to be limited to the precise details of construction, combination and arrangement of elements as illustrated and described, other than might be necessary to meet the requirements of prior art, and the scope of the appended claim.

Other objects and advantages will be best understood from a study of the following description, taken in connection with the accompanying drawings, wherein:

Figure 1 is a side elevational view showing the hemmer mounted in positive position on'the head of a sewing machine.

Figure 2 is a front elevational view of the hemmer.

Figure 3 is a perspective view of a bracket plate forming a part of the invention.

Figure 4 is a side elevational view of the hemmer with the same'shown swung up in an out of the way position.

Figure 5 is a fragmentary sectional view through the pivot connection between the attaching bracket and arm.

Figure 6 is horizontal sectional view through the attachment, and

Figures 7 and 8 aresectional views taken substantially on the lines 7-7 and 8-8 respectively, of Figure 6.

Referring to the drawings by reference numerals, it will be seen that 10 indicates'generally the head of a conventional type of sewing machine, while the hemmer attachment is designated generally by the reference character 11.

The attachment 11 comprises an attaching or bracket plate 12, that is adapted to be mounted on the lower end of the head transversely of the head, and to be secured thereto through the medium of screws or other fastening elements 13. An angular tapered arm 14 has the largest end thereof pivoted to the bracket plate 12, through the medium of a pivot bolt 15, that extends through an aperture in the largest end of the arm 14, and

is" -threadedly engaged with a 1 threaded aperture 16 provided in theforward'end of the plate12. A substantially conical coiled spring 17 isdisposed about'thebolt'15 andthelargest end of thespring 17 bears against the arm-14'; and at*the smallest end, said spring seats againstthe: head of the bolt 15,:ina manner clearlyshow-n in Figure 5', for urging the pivoted end of the arm 14 into frictional engagement with the plate 12, for holding the arm 14 at the desired position, as for example, the position as shown in Figure 1 when 'the device is in use, and the position shown in Figure 4 when the device is swung upwardly to an out of the way position when not in use.

0n the free end of the arms 14, there is secured in any suitable manner, as by being soldered thereto, an edge turner or holder, which, in the present instance, comprises upper and lower substantially parallel wings 18, 19, which at one edge merge into concentric downwardly directed curved walls, 20, 21, which merge into'the side walls of a channel 22, as will be clear from a study of Figures '1 and 8. The channel 22 is disposed at an incline to the plates or wings 18, 19, with the top wall of the channel 22 being remote from the lower plate or wing 19 at one end of the device, and at a relatively opposite end being contiguous with said wing 19, as also will be clear from a comparison of Figures 7 and 8. Further, as shown in Figure 1, the holder is disposed at an incline to the horizontal, sloping rearwardly or in the direction of thestitch forming mechanism of the machine, as will be clear from a study of Figure 1.

To facilitate insertion of the cloth into the space between the wings 18, 19, the walls 20, 21, of the channel 22, and the free edges of the wings 18, 19, are reversely bent as at 23, 24, respectively. 1

0n the front face thereof, the plate 12 adjacent its forward end is provided with a stop block 25, with which is engageable one edge of the arm 14 when the latter is in the perpendicular position shown in Figure 1, that is, in the position for use in holding the cloth as it is guided to the stitch forming mechanism of the sewing machine. 1

In operation, the edge of the cloth to be hemmed is inserted into the holder passing between the wings 18, 19, downwardly between the walls 20, 21, and into the channel 22, as shown in Figure 6. In this manner, as the cloth passes through the holder, the edge of the cloth will be turned under for subsequent stitching in the forming of the hem, in a manner well known and thought to be apparent. By passing the cloth under the device with a portion of the cloth engaging the free edge of the wing 19, a large fold will be formed in the cloth and the hem will be sewn to the cloth directly under the channel 22 so that a casing or large hem will be formed in the cloth.

Owing to the manner in which the hemmer is supported on the head 10 by the bracket plate 12 and pivoted arml4, it will be obvious that said hemmer may be turned up out of the way to the position shown in Figure 4, and will be frictionally retained in this position through the me'dium of the pressure of the spring 17$againstthe arm. The tension of the springl'l maybe ad,-

justed as found desirable by adjustingthe pivot bolt 15, as is apparent.

' scribed the preferred embodiment of the-inven-g} I 'face of the lower wing at the rearof the detion, it is to be understood that the same is sus-' ceptible of further changes, modifications and improvements coming within the scope of the appended claim. i

Ha ing thus described my invention, what I wish to claim as new is: 7 v

v A sewing machine hemmer adapted for attachment to the head of a sewing machineand comprising an arm, means for attaching one end of the arm to a part of the head, a folding device on the free end oi said arm, said folding device comprising upper andlower substantially parallel wings adapted to receive therebetween the edge portion of the cloth to be hemmed, depending curved walls depending from said wings at one edge of the latter, and a chamiel disposed beneaththef lowermost onev of said plates and ay ng si l m in -Tw t? th depending walls of said wings, the curved walls serving to guide the edge of the cloth into the channel during passage of the cloth through the holder in the-directionof the stitch forming mechanism .of the machine the lower wing being wider than "the upper wingfand having a straight side edge JEIan'dFthe channelpart being spaced from the lower Even though I have herein shown anddwingat -the'front of the device, with the upper wall of the channel part contacting the lower R S. BENNETT :HINDSQ

Images