Claims (1)
1. Patotansordk: 1:o) Anordning -vid skruvstyeken, vid vilka fastet kir ,skruven for kaftarna-s hopklammande res. isarforande utgores av en hylsa (4), som Er utform-ad till en tvarsigenom skravstyckets fasta skankel (1) sig strae.kande, i sin laneriktning forskjutbar och fastlasbar sting .(5) for omstallning -av skruvstyekets gripvidd, Jannetecknad Järav, att i den fasta skankeln (1) widbart lagrad en eller flora excentriska sldvor eller rullar (7, 8), .som utloshart anligga mot stangen (5) utanfor en genera resp. skivas eller miles vriclningsaxel lagd, mot sthngen yinkelrat linje, i andamal att stangen_ (5) skall kunna ,dbehinclrat forskjutas i riktning .fr.in den rOrliga skankeln, men automatiskt fastlisas i den fasta .skankeln .av namnda organ, da den fOrskjutes i riktning mot den rOrligo, .skEnkeln. 2:o) En utfdringsform av den i patentanspraket 1:o) angivna !anordning,en, kannetecknad darav, att de excentriska skivorna eller rullarna (7, 8) aro vridbart dagrade pA motsalta sidor cm stangen (5) i eller mellan frhn skruvstyck-ets fasta skänkel (1) utskjutande armar (9, 10) oak fOrbundna med en fjaderphverkad havarm (13) eller ,dylikt, med vilken de for hand k-unna utitisas eller ,svEngas isar kir stfingene frigdrande. (13:irti1l en ritning.I Stockholm 1920. P. A. Norstedt & &incr.1. Patotansordk: 1: o) Device -at the vise, to which the fastener kir, the screw for the kaftarna-s clamping res. isarforande is formed by a sleeve (4), which is designed to a straight shank (1) extending through the fixed piece of the fitting piece, in its lane direction displaceable and lockable stitch. in the fixed shank (1) widbarly stored one or more eccentric slings or rollers (7, 8), which are trigger-hard against the rod (5) outside a gen. sliced or miles axis of rotation laid, against the bar perpendicular line, in the case that the rod_ (5) should be able, dbehinclrat displaced in the direction .fr.in the movable shank, but automatically fixed in the fixed .shank .of said member, as it is displaced in direction towards the rOrligo, .skEnkel. 2: o) An embodiment of the device specified in patent claim 1: o), characterized in that the eccentric discs or rollers (7, 8) are rotatably mounted on opposite sides of the rod (5) in or between the front vice. its fixed leg (1) projecting arms (9, 10) oak connected with a spring-actuated sea arm (13) or, similarly, with which they are by hand k-unted utitisas or, svEngas isar kir stfingene liberating. (13: irti1l en ritning.I Stockholm 1920. P. A. Norstedt & & incr.