Patent GB-190821047-A (GB)
Title: Combined Trimmer with Router and Jig-saw Attachment.
Inventor: MILLER HARRY GARRISON
Filed: 1908-10-06
Granted: 1909-06-17
Abstract: 21,047. Miller, H. G. July 13, [date applied for under Section 91 of Patents &c. Act, 1907]. Sawing.-A machine for operating upon linotype slugs, electroplates, brass rules, and other articles used for making-up printing-formes comprises the combination of a circular saw for grooving and trimming, cutters for trimming the rough edges made by the saw, a reciprocating saw for cutting mortises &c., and a rotating tool for routing or drilling. The circular saw 28, Fig. 4, is carried by a shaft in bearings 30 on a bracket 13 extending from the pedestal 9, Fig. 1, of the machine. A vertical pillar 14 is hinged at 101 to the bracket 13 and carries a lateral arm 15, the end of which carries the spindle 88 of the drill or router and a plunger 53 to which the top end of the reciprocating saw is attached. The circular saw 28 is attached to a trimmer-head 31, Fig. 4, and trimming-tools 32 project through apertures in the saw to trim the roughedges made by the saw. The saw is driven by a belt 34 passing over a pulley 33 on the shaft 29. The lower end of the reciprocating saw 70 is carried by-a slide 74, Fig. 6, reciprocated by a crank-disk 77 on a shaft 78 carried by an arm 79 extending from the pillar 14. The shaft 78 can be connected by means of a clutch 82 to a shaft 81, a pinion 80 on which engages with a pinion 107, Fig. 4, on the shaft of the circular saw, only when the arm 15 is swung into operative position with respect to the table 12. The plunger 53, which carries the top of the saw 70, is normally held in its raised position by means of a spring 62, Fig. 6, and a bar 58 pivoted at 59. The shaft 81 can be connected by means of a clutch 83 to a shaft 84 to cause the spindle 88 of the router to be turned through the medium of bevel-gearing 100, 99, a shaft 97, pulley 96, belt 95, and pulley 90. The spindle 88 is carried by a vertically-slidable sleeve 91 having a flange 92. When the saw 70 is in use, the plunger 53 works in a recess in the flange 92, but when the router is in use the flange 92 is turned so as to fit in a notch in the plunger 53, so that the router can be depressed by rocking the arm 58 about its pivot 59. This is done by turning a bent lever 64 by means of an exterior connexion, such as a treadle mechanism. A number of stops 105 of different heights, each varying by one " point," are arranged on a rotatable plate 104, so that by bringing any one beneath the flange 92 the depression of the router can be regulated. A cap 106, having a thickness of half a point, can be placed on any stop to alter its height by a half-point. A bracket 10, Fig. 1, vertically slidable on the pedestal 9, carries a relatively fixed table 11 on which a work-table 12 is adapted to slide. The height of the table is adjusted by means of a screwed rod 18 and an eye 20, the rod 18 being turned by a hand-crank 25 and bevel-gearing. A disk 26, rotatable with the crank 25, is graduated into divisions of a pica, and co-operates with a pointer 27 to indicate the height of the table. A gauge bar 37 is secured to the table 12 by means of clamping-screws 42, 46, adjustable to vary the position and angle of the bar 37. A straight-edge 38, Fig. 4, slides along the bar 37; from which it projects at a right-angle, and is adjustable by means of worm-gearing 40, Fig. 1. A bar 49, sliding in a casing 48 detachably secured to the table 12, is adapted to be clamped in any position by a handle 50 to hold the work against the action of the tools. When the table is raised above the saw 28, a pivoted part 51 of the table may be folded down to increase the bearing-surface of the table.