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    • 31. 发明专利
    • RECIPROCATING SAWS
    • GB1240924A
    • 1971-07-28
    • GB3200169
    • 1969-06-25
    • THOMAS ROBINSON & SONS LTDROBERT HOWARD BUCKLEY
    • B27B3/04B27B3/10B27B3/12
    • 1,240,924. Frame saws. THOMAS ROBINSON & SONS Ltd., and R. H. BUCKLEY. 9 June, 1970 [25 June, 1969], No. 32001/69. Heading B5L. In a reciprocating saw comprising a plurality of saw blades 48, Fig. 2, mounted side-by-side and substantially upright in a frame 43 which is adapted for up and down reciprocation, means are provided to cause the frame to recede in the timber feed direction in the return stroke of each reciprocation and to advance contrary to said feed direction in the cutting stroke of each reciprocation, the locus of any point on the frame during the reciprocation approximating to an ellipse. As described the frame 43 comprises vertical bars 44 which are journalled on enlarged eccentric portions 35, 38 of crosshead shafts 29, 28 respectively journalled in vertical bars 23 of a carriage 22. A connecting rod 32 has one end 33 driven by an eccentric and its other end 34 is fixed to the portion 35 of shaft 29. Movement of the rod 32 causes the carriage 22 to slide up and down on rods 20 supported on a framework 10, so as to reciprocate the saw frame 43 vertically, and simultaneously causes the shaft 29 and the shaft 28 which is linked thereto to oscillate so that the enlarged portions 35, 38 cause the saw frame to reciprocate horizontally in correlation with the vertical reciprocation. Each saw blade 48 has one end secured to a spindle 49 and its other end apertured to receive an eccentric boss of a disc 51 which enables the blade to be individually tensioned. The discs 51 are mounted on a spindle 50 carried by a frame 54 movable by bolts 59 to tension the blades as a unit.
    • 33. 发明专利
    • Improvements relating to cross-cutting machines
    • GB864549A
    • 1961-04-06
    • GB2958558
    • 1958-10-16
    • ROBERT HOWARD BUCKLEY
    • B23Q16/00
    • 864,549. Sawing. BUCKLEY, R. H. Jan. 18, 1960 [Oct. 16, 1958], No. 29585/58. Class 145. A stop arrangement for a cross-cut saw comprises several stops 3, 4 adjustable along a gauge bar 2, each comprising a triangular stop 10 retractable up the inclined base 9 of the stop by a cam 13 engaging a roller on a pin 14 within a slot 11 in the stop member. The cams are carried on bushes 12 slidable on a square shaft 15 and have depressions of different angular lengths so that by rotating a geared hand wheel 18 the stop members can be retracted successively. The gauge bar 2 may be mounted in fixed brackets or may be movable lengthwise a limited distance to enable each stop to be used for more than one dimension by rack and pinion, link or toggle means. The gauge bar may be graduated and a rule 6 may be provided. A pin 16 in the stop passes through a guide slot 17 in the stop member and the stop members may be spring-loaded to the out position so that they move out in any angular position of the stop on the gauge bar. The work is conveyed on a belt 1 and the stops are securable to the gauge bar by clamps 5.
    • 35. 发明专利
    • Expansible augers or bits
    • GB602943A
    • 1948-06-07
    • GB3020945
    • 1945-11-12
    • ROBERT HOWARD CLARK
    • B27G15/00
    • 602,943. Augers. CLARK, R. H. Nov. 12, 1945, No. 30209. Convention date, Dec. 6, 1944. [Class 83 (iii)] An adjustable auger comprises a body 10, a shank 26 sweated in a central hole 25 in the body and projecting at the bottom to form a feed screw 14 and a main cutter 12 projecting laterally from the body and adjustably secured thereto by a clamping plate 34 which also forms a core cutter. The cutter 12 is of triangular section with a cutting edge 30 hollow ground on the face 31 above it and a depending cutting lip 39; it is fitted in a V-shaped groove in the lower end of the body, tilted so as to afford cutting clearance behind the edge 30, and bears a scale on the rear face co-operating with the intersection of the groove with the outer surface of the body. The clamping plate 34 is secured to the body by a screw 35 and has formed on it a cutting edge 51 and cutting lip 52 diametrically opposed to each other. During cutting the clamp plate bears in the bore formed by the lip 52 and steadies the tool. To clear shavings, the clamp plate is cut away at 70 and the body has a flat side 23. The feed screw 14 is tapered over the lower portion and the extreme tip is shaped to have several small plane faces to prevent injury to the tip. In a modification, Fig. 7, the clamp plate 34a is a flat plate with a part turned to form a blade 50a; it may also have a depending cutting lip.
    • 36. 发明专利
    • Lathe or like tool holders
    • GB598659A
    • 1948-02-24
    • GB1997644
    • 1944-10-16
    • ROBERT HOWARD CLARK
    • B23B27/16
    • 598,659. Tool-holders. CLARK, R. H Oct. 16, 1944, No. 19976. Convention date, Feb. 21. [Class 83 (iii)] A tool-holder, the elongate shank of which has a flat bottom surface, has an elongate head projecting from the forward end of the shank, the forward end portion of the head being angularly disposed and laterally displaced relative thereto, and a polygonal tool-carrying socket extending lengthwise through the head and opening at the forward end face thereof, whereby the socket is angularly related to the shank, a clamping arrangement for a tool extending substantially parallel to the forward end face of the head being adapted to clamp the tool towards one corner of the socket. The shank 21, with an enlarged head 24 at one end, is provided with a socket 12 for a tool 13. The tool is clamped by means of a block 14, Fig. 4, rotatably secured to a clamping screw 16, the lower face of the clamping block being notched to engage the tool and wedge it against the lower and side walls of the socket. A roundsection tool may be similarly clamped.
    • 37. 发明专利
    • Improvements in cutting tools for facing and counterboring
    • GB595686A
    • 1947-12-12
    • GB193345
    • 1945-01-24
    • ROBERT HOWARD CLARK
    • B23B51/10
    • 595,686. Drills and cutters. CLARK, R. H. Jan. 24, 1945, No. 1933. Convention date, Feb. 18, 1944. [Class 83 (iii)] A facing and counterboring tool has an elongate body with a shank at one end and angularly disposed channels with means for retaining flat cutters therein, the body having a central socket entering it from its other end and a pin held in said socket which carries a pilot head having a lower portion spaced below the cutting edge of said cutter and being round in cross section with the extension of its cylindrical surface intersecting the path of the cutting edges. The body 10 of the tool which is of hexagonal section is recessed on opposite sides to take the cutting blades 21. These are clamped in adjusted position by clamping discs and set-bolts 25, 26, respectively, so that the cutting-edges 20 extend below the lower face of the body and lie in recesses 31 provided at the top of the pilot portion 30. The pilot may consist of a shank portion clamped to the body of the tool by a socket screw 39 and a head portion 30 secured to the shank by a socket screw 37. In an alternative form of pilot the shank and head are in one piece and the shank is recessed so that the blades overlap the shank and the same clamping means secures both the blades and the pilot. Additionally, in this type of tool, which is for small holes, the facing cutters have cutting portions set back from the blocks so that the cutting edge intersects the surface of the pilot similar to the first described type of tool.