Patent GB-1061153-A (GB)
Title: Multi-purpose power tool
IPC: B23Q1/30
Filed: 1964-04-29
Abstract: 1,061,153. Machine tool details. MAGNA AMERICAN CORPORATION. April 29, 1964 [Jan. 29, 1964], No. 17737/64. Headings B3B, B3C and B3T. [Also in Divisions B5, E2 and F2] A multi-purpose power tool comprises a base 20, Fig. 1, machinery mounting means 23 supporting a work-table 29 and a headstock 28 having a rotatable spindle, and releasable pivot means 30, 31 securing the mounting means to the base adjacent the edges of the base whereby the mounting means may be selectively secured in a horizontal position, a vertical position adjacent one end of the base, and an inverted vertical position adjacent the other end of the base. In the horizontal position of the mounting means, the tool may be used as a sawing machine, disc sander or lathe, in the vertical position, when rocked about the pivot 31, the tool may be used as a drill press (Fig. 3), and in the inverted position when rocked about the pivot 30, the tool may be used as a spindle shaper (Fig. 2). The mounting means 23 consists of a pair of support members 25 and guideways 24 connected at their ends to castings 26, 27. The releasable pivot means connects the mounting means to the base and each pivot means comprises a rod (46, Fig. 4), which extends through the ways 25 and has a locking means in the form of a circular portion (45a) and a lug (45b) which engage brackets (40) secured to the edges of the base. The brackets are formed with a slot defined by walls (41, 42), an arcuate portion (44) and a stop portion (43) whereby when the lug (45b) engages the stop portion, in which position it is releasably retained when a handle (48) is in the position shown and a pin (49) on the handle engages a notch in the bracket; the mounting means is pivotally connected to the respective edge of the base. Movement of the lug to the vertical position permits the mounting means to be pivoted about the opposite edge of the base to a vertical position wherein it can be retained by locking means 33 having offset catches 33a, the end of the mounting means engaging abutments 32 on the legs 21, 22 of the base. Movement of the headstock 28 along the guideways 24 is effected by gearing comprising a rack (50, Fig. 8) which is secured to one of the guideways and engaged by a gear (51) freely rotatable on a shaft (52) fixed to the headstock. A worm-wheel (53) is also freely rotatable on the shaft (52) and meshes with a worm (53) on a shaft (55) having a handle (56). The worm-wheel (53) and gear (51) are releasably clutched together by pins (60) which are mounted on a plate (59) and urged by a spring (61) through apertures in the worm-wheel into recesses in the gear so that rotation of the shaft (55) by the handle (56) moves the headstock along the guideways. The pins can be withdrawn from the recess in the gear by movement of a cam engaging the plate (59) whereby the gear (51) and wormwheel (53) are disconnected to permit free movement of the headstock along the guideways. The headstock can be clamped in position on the guideways by members (64, 65) which are mounted on the shaft (55) and are movable against springs (66, 67) into frictional engagement with the guideways by rotation of the handle (56) about a pivot (69) causing a cam (68) to move the member (65) along the shaft (55) towards the member (64) which is fixed to the shaft. The supporting surface for a workpiece may be increased by an extension 101 having a pair of support rods which may engage sockets 100 in the castings 26, 27 or sockets on the undersurface of the work-table 29. The spindle of the headstock is rotated by a belt-drive (113, Fig. 15) having an adjustable pulley (112) from an electric motor (110) which also drives an impeller (114) connected to a flexible intake hose (117) and outlet (118) for the removal of sawdust.