Патент USA US2130266код для вставки
Sept‘ 13, 1938. H. B; CONNER El‘ AL 2,130,266 FOOT FEED A'FTACHMENT FOR SEWING MACHINES Filed June 28, 1937 Hugh 1?. de?ne/r ?rbhur OZ 3077/ INVENTOR ATTORN EV’ 2,1303% Patented Sept. 13, 1938 UNITED STATES PATENT. OFFICE. FOOT FEED ATTACHMENT FOR SEWING: . . ~ MACHINES ' Hugh B. Conner and Arthur Olson, Osage, Iowa Application June 28, 1937', Serial No. 150,876 3 Claims. This invention relates to foot feed attachments for sewing machines and has for an object to (01. 112-239) ' H for imparting movement to the needle bar [2. A presser foot I3 is operated in the usual manner A further object of the invention is to provide by mechanism of the machine (not shown). The presser foot is raised by the customary lever I4 so that goods may be placed under the presser foot. To permit the presser foot being raised higher a high lift foot feed attachment which will not than ordinarily by the conventional actuating permit the needle to be pushed out of alignment, bar I5 a bracket-like main frame I6 is provided with a slot I1, best shown in Figure 4, to receive 10, the actuating bar l5 and an actuating bar clamp plate i8 is removably secured in position to secure the main frame to the actuating bar by means of a screw [9 passed through the plate and into the main frame. A Slot 20 is formed in the bottom of the main frame to receive a compensator block 2| which is provide a high lift mechanism which will permit thick boot counters to be sewed as easily as thin 5 counters, and which will permit reverse seams to be sewed in leather jackets and coats. 10 or material to lag, as the case may be thereby preventing thread breaks. A further object of the invention is to provide a device of this character which may be readily substituted for the conventional lift attachment 15 by unskilled persons in approximately one min ute and without the use of tools. A further object is to provide a device of this character which will be formed of a few strong simple and durable parts, which will be inexpen 20 sive to manufacture, and which will not easily get out of order. With the above and other objects in view the invention consists of certain novel details of con struction and combinations of parts hereinafter fully described and claimed, it being understood that various modi?cations may be resorted to within the scope of the appended claims without departing from the spirit or sacri?cing any of the advantages of the invention. In the accompanying drawing forming part of 30 this speci?cation, Figure 1 is a fragmentary side elevation of a sewing machine with a high lift foot feed applied thereto and constructed in accordance with the invention. Figure 2 is an enlarged side elevation of the attachment showing the compensator block in normal position to permit the presser foot to lift sufficiently to operate upon goods of a pre 40 determined thickness. Figure 3 is a View similar to Figure 2 but show ing the compensator block rotated through an angle of 90 degrees to elevate the actuating rod about $2 of an inch higher than when the block 45 is in the position shown in Figure 2 to permit the machine operating upon goods of a greater thick ness. Figure 4 is a front elevation of the attachment removed from the machine. Figure 5 is a detail perspective view of the 50 compensator block. Referring now to the drawing in which like characters of reference designate similar parts in the various views, In designates a conventional 55 type of sewing machine having an operating lever substantially rectangular in contour and is rounded at one corner as shown at 22 in Figure 3. The block is provided with an opening 23 and 2O a shaft 24 is passed through registering open ings 25 in the main frame, and through the open ing 23 of the block. The block is pinned to the shaft to be moved as a unit therewith by a pin 26. A hand control wheel 2'! is ?xed to the shaft. 25 The compensator block is so mounted on the shaft that the shaft is disposed nearer one end of the block than the other end of the block. The hand control wheel 2'! may be turned in one di rection to dispose the block to extend with its long median line parallel with the conventional rock lever 28, as best shown in Figure 2, or may be turned from this position through an angle of 90 degrees to dispose the long diameter of the block perpendicular to- the rock lever 28, as best . shown in Figure 3. In the latter position the block will space the actuating bar I5 approxi mately % of an inch higher from the rock lever than in the former position so that the presser foot will be raised to receive thick work such as boot counters, leather jackets, coats and other goods. From the above description it is thought that the construction and operation of the invention will be fully understood without further explana tion. What is claimed is: 1.- In a sewing machine, the combination with the presser foot actuating bar, of a member con nected to the bar, a compensator block revolubly _ mounted on the member, said block having a long longitudinal median line and a short trans verse median line, a grip connected to the block for manually turning the block to dispose the same with its long median line extending either 55 2 2,130,266 ‘ vertically or horizontally, and a driven lever for‘ actuating the presser foot engageable with the block in either of its adjusted positions. 7 2. In a sewing machine, comprising the com bination with the presser foot actuating bar, of a bracket-like main frame removably secured to the bar, a manually revoluble shaft carried by the frame, there being a slot in the bottom of the frame through which said shaft passes, a ‘10 compensator block of substantially rectangular 3. In a sewing machine, comprising the combi nation with the presser foot actuating bar, of a bracket-like main frame provided with a lateral slot to receive the bar, a clamp plate on the frame securing the frame to the bar, there being a slot formed in the bottom of the frame, a compen sator block of substantially rectangular contour received in said slot having a long longitudinal median line and a short transverse median line, a shaft revolubly mounted in the frame and ?xed contour and rounded at one corner ?xed to the to the block near one end of the block for ro shaft in the slot, said shaft passing through said tating the block through an angle of 90 degrees to dispose selectively the long median line of the block nearer one end of the block than the other end of the block whereby the shaft may be ro 15 tated through an angle of 90 degrees to dispose the block with its long median diameter selec tively, horizontally or vertically, and a driven lever for actuating the presser foot engageable with the block in either of its adjusted positions. block in horizontal or in vertical position, and a driven lever for actuating the presser foot en gageable with the block in either of its adjusted positions. HUGH B. CONNER. ARTHUR OLSON.