Патент USA US2412891код для вставки
De_c. '17, 1946. F. S. KRALOVIC I 2,412,891 ' SEWING APPLIANCE Filed Jan. 26, 1946‘ INVEN TOR. 615mm’ 5 Ai’nzowc 2,412,891 Patented Dec. 17, 01946 ‘ I UNITED STATES PATENT OFF ICE ‘ 2,412,891 “ V SEWING APPLIANCE Frank s. Kralovic, fauna, oiiie Application January 26, 1946, Serial No; 643,637 8 claims; (01. 222-110)‘ 2 I My invention pertains to a portable,- domestic Figure 5 is a similarly enlarged, foot-entering handicraft appliance, exempli?edly, to a sewing (darning or cross-stitching) stand. end view as an elevation of the entire appliance. Figure 6_is a plan section viewed on line 6-5 Long experience in the metal manufacturing of Figure 5. business has brought me knowledge of earlier i ‘ ‘ A base ‘I carries laterally upstanding ?anges 2_ each _of which is provided- a short distance above the plate I and ‘somewhat nearer one end with a hole 3 intended for the reception of one adjustable pedestals, footerest-stabilized sup ports and that surmounted trays are also old. However, while my appliance comprises several structural features, each by itself old, it also of a pair of pivotal connections between the advantageously correlates‘the function of one 10 spaced flanges 2 and the lateral edges of a rock-1 trayed, for instance,- by domesticlpatents, No. able pedal; Each pivotal connection is contrived by provision of a lug suitably carried by one _of the flanges 2', projecting downwardly partially across- the opening or hole 3 where it is located and terminating as a ser‘iii-dircular lower edge 4 adapted to guide the turning movement of a semi-cylindricalsocket 5 which is‘formed as _a laterally projecting ear projecting through a hole 3, the pair of socket-forming ears 5 being in 152,883 of 1874 to Tunis; No. 756,723 of 1904 to 20 tegrall‘y fashioriedfalongi opposite lateral edges Skoog; No; 11958118], _of 1926, to Pomeroy et a1. of-a stepped pedal comprising a depressed heel end 6, ‘a separating shoulder ‘l and a relatively novel feature, an arm, optionally padded on its _ lower. side, forclamping a work piece (textile fabric and/or its spanning, frame) against the top of the user’s knee-directly with an old (ad— justment) feature and. indirectly with another old (foot-rest) feature whereby to achieve a new and useful, indeed, improving combination. The discoverable prior patented art, as por and No. 2,097,000 of 1937 to Smoot—- is believed to be‘inadequately anticipatory, even collectively, raised toe end 8'._ A rocking action at the ankle because the substitution of a feature or features of the user is’ to be communicated into a- rocking of any one to another would not achieve my 25 act-ion of the pedal to cause the ear-sockets to organization of parts nor becapable of- exercising the desirable function of facility of application turn with respectto the inter?tted lug edges 4. to suit the varying measurements from the top of the knee to the sole of the foot of different users. countergfyo'rce exerted by a pair of compression springs 9’ interposed between the base plate I and that end of the toe end ofxthe pedal which is adjacent to the shoulder 1. Depending from the Thereby is. declared the primary object of my A depression of the heel end» 6 overcomes the 30 origination, besides its purpose of clamping against the human knee top while mindful of free end _of the toe section 8 is a stop I0.‘ ‘ simplicity and economy of manufacture.» The bifurcated lowermends’ II and I2 of a It is to be understood, upon future considera pedestal are spaced, to fit inwardly adjacent to tion, that the scope of my invention compre-' 35 the ?anges 2 (the toe end of the pedal, as: clearly hends many equivalent constructions. The shown in“ Figure 6, being narrowed to permit showing of the drawing and the speci?c descrip-‘ clearance) where they are detachably secured, tion‘are. intended merely to evidence one feasible as by means of screws I3. About midway of its mechanical embodiment and arrangement of- my invention. 40 Adverting to the drawing: ‘ v Figure 1 is a side elevation; of my appliance‘ showing the manner of its‘use in association with a lower leg? of- a-user, ‘ length,- the“ pedestal is uni?ed, a rivet 114 being shown _at the junction point‘ of the ends H and i2 while the remainder of ‘the upper'ends- may ‘be considered as» spot-welded together to form the'unit numbered’ I5.‘ A tapped hole It, ex tends'Tfrom the upper extremity of the unit l5 and Figure 2 illustrates: a “knock-down” arrange 45, is intended for a screw _orwin'gnut ll- adapted ment of? the composite parts, showing- ready in to‘, secure a tray l8 which during the sewing use ter?tting in a minimum of space preparatory to shipping. ‘ p ‘ _ of my appliance is to serve for holding miscel laneous sewing or mending accessories; _ Figure 3‘ is a top plan view of an adjustably _An arm or bracket is vertically adjustable co‘acting structure which. is itself an assembly. 50 along the unit‘ l5 and has its ‘main- body formed Figure 4 is an enlarged elevation of-_ the lower (as exempli?ed) of a single strip of metal», in end of my appliance as it appears with the near cluding mid’sections‘ l9 and, 20~which1 are‘ in’ con enclosing wall removed (broken away) and show forming contacts, oppositely directed free end ing, in broken‘ lines,‘ a pedal-actuated displace merit‘ ofanother movably connected portion. ?anges 21 and- 2-2‘ and at‘ the pedestal-attaching 55 end spread apart to form a channel 23 suited to 2,412,891 a loose insertion of the unit l5 and provided with a loop-closing end 24 having a tapped hole for the reception of a set screw, shown as a wing said member and extending over said shoulder, said arm being adapted ?rmly to engage the top of the knee of the user upon release of said nut 25. The construction just described is most clearly illustrated in Figure 3, and it is to be spring. 3. A portable sewing appliance comprising, the understood that the sections l9 and 20 and the free ends 2| and 22 are securely a?ixed to each combination of an arm having an end adapted to contact the knee-top of the user, a rigid up ' right member supporting said arm, a floor plate other in pairs as, for instance, by spot-welding. Manifest will be that depending, upon the con: secured to the, lower end of said-member and a trol provided by the wingnut 25, the arm‘tmay, be 10 pedal reactingly supportedv onisaidiplatefor rais slid to any desired elevation and there ?xed to ing the lower leg of the user toward said arm. the pedestal. As may be observed upon inspec-H 4..In combination, an arm having a free end tion of Figure 5, the ?anges 2| and 22 are curved ‘ adapted to contact the knee-top of the user, an slightly downwardly and attached to the lower - upright member adjustably supporting the other‘ sides thereof is a strip of felt or other padding end of saidarm, a ?oor plate detachablysecured 26 with consideration of the intention to‘ have to the lower end of said member, a pedal rock effected there a pressure engagement with the V > top of the knee of the user of my appliance and nected on one side of said rockable connection axis and adapted to move the near end of said preparatory to clamping therebetween a piece of fabric or an apparel article 21. i The operation or use of my appliance is as fol~ lows: vably connected with said plate and a spring con 20 pedal away from said plate whereby to raise the knee of the pedal-operating leg of a user against said arm. The pedestal is brought into position in front - ' ' 5. In combination, an‘ arm having a free end adapted to contact the knee-top of a user, an of a seated person intending to employ it- and so that, as shown in Figure 1, one foot rests upon the pedal with the heel and sole of a shoe in ‘con tact with the sections 5 and 8 respectively, the lower leg being in a substantially upright posi tion. Next, the wingnut 25 is loosened and the upright member supporting the other end ‘of said arm, a base secured to the lower end of said member, a pedal pivotally connected intermee diately of its ends with, and adapted to rock on, said base and a spring connected between one ‘end of ‘said ‘pedal andsaid base and subject to pedal depression for power storage thereof khee-top-contactable arm is adjusted to and ?xed at a. selectable elevation. The determina tion of the elevation is thus accomplished. While whereby release of foot pressure is adapted to clamp material being sewn ormended. between the heel of the user's shoe temporarily depresses the section 6 against the action of the springs 9, the padded ?ange unit 21-22 is adjusted so that it slightly clears the knee top, then the mate the user’s knee and said ‘arm. rial 21, upon which some needle-work is to be upright member adjustably supporting the other end of said arm, a floor plate attached to the performed, is inserted between the knee top and the padding preparatory to foot-pressure release of thepedal. The rising action of, the section 6, as urged by the springs, is permitted to raise the leg and to bring the knee-top into ?rm yet lower end of said member and provided with lat 4-0 eral upstanding ?anges, a pedal pivotally mount ed on said ?anges and a spring ?tted between said plate and pedal on one side of its pivot axis, the arrangement limiting the range of rockable’ movement upon release of spring-overcoming foot pressure upon one end of said pedal after the spring served to raise the user’s knee toward the comfortalble pressure-engagement with the pad ding while the material 21 is held clamped there between against displacements which have hith erto been so troublesome. Meanwhile; such a convenient and advantageous clamping action is free end of said arm for clamping a workpiece effected without expenditure of any muscular en ergy on the part of the user. » The knock-down arrangement shown in Fig ure 2, to make possible a packaging in an inter ?tted relationship of the several parts to achieve a maximum of compactness, illustrates how the detached pedestal proper may be laid within the con?nes of the ?anges 2, with the tray l8 and‘ arm 2|—22 also deposited therein. I claim: ' 6. In combination, a rigid arm having a free end for contact with the knee-top of auser, an therebetween. 50 V - v 7. A portable, handicraft appliance comprising the combination of an upright pedestal provided at its upper end with means for detachably sup porting a tray and having its lower end formed as a base, a pedal'rockably connected with said base'and carrying a stop adapted to engage said base and a spring connecting said pedal and base and tending to hold said stop against the latter, an arm adjustably connected with, for movement ' along, said pedestaLsthe lower side‘ of "said arm 1. In combination, a handicraft appliance being adapted to clamp a work piece against the comprising a base, an upright member detach ably connected with said base, an arm detach 60 top of the knee of the user’s leg which, while ably connected with said-member, said member and arm being adapted in'disassembled- arrange ment for deposition along‘ said base for compact resting upon said pedal, is ‘urged upwardlyrjby the said spring until said stop contacts said'base. 8. A portable manualélabor aid comprising the ness in shipping, and-aspring-controlled pedal combination of‘ an upright member provided’ at reactingly rockable on said base for alternatively’ 65 its upper end with means for supporting a tray urging a user’s leg upwardly until its knee en' for instruments and supplies and having'its lower gages said arm. > v 2. The combination in a portable sewing ap pliance, of a base structure, a pedal rockably con nected with said base'and fashioned with a rela tively raised section forming a heel-front engag ing shoulder, a spring normally urging said shoul der upwardly, an upright member connected with said base and an arm adjustably connected with end formed as a base intended to restupon a ?oor, an arm adjustably connected with, for movement along, said member and reacting 70 mechanism including a, pedal pivotally connected with said base and adapted to raise the pedal depressing user’s legragainst said arm. ' ' " 5 FRANK s. KRALovIc.