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61. 发明专利

FI12298A Förfaringssätt för gängning av spetsen på ämnen för träskruv 未知
公开(公告)号：FI12298A
公开(公告)日：1929-01-12
申请号：FI12298D
申请人： PRIORVERKEN AB
发明人： DAWID SWENDSEN
IPC分类号： B23G1/06

62. 发明专利

FR643652A 未知
公开(公告)号：FR643652A
公开(公告)日：1928-09-21
申请号：FR643652D
申请日：1927-11-08
申请人： PRIORVERKEN AB
IPC分类号： B23G1/06

63. 发明专利

DE434647C 未知
公开(公告)号：DE434647C
公开(公告)日：1926-09-30
申请号：DEST037979
申请日：1923-10-13
申请人： PRIORVERKEN AB
IPC分类号： B23G1/06

64. 发明专利

GB182076A 未知
公开(公告)号：GB182076A
公开(公告)日：1922-08-17
申请号：GB2477621
申请日：1921-09-19
申请人： EIKAR G.M.B.H., MASCHINENUND WERKZEUGFABRIK
IPC分类号： B23G1/06
摘要： 182,076. Eikar Ges. Maschinen-und Werkzeugfabrik. June 18, 1921, [Convention date.]. Turning wood-screws.-In a machine for turning woodscrews by means of a rotary chasing cutter of the type in which screws of different lengths and pitches may be cut without changing the gear ratio between the cutter spindle and the work spindle, the transmission gear between the work and cutter spindles is housed within a single bearing assembly of the machine. The blank 1 is carried in a chuck 3a on a spindle 3 mounted in bearings 32, 33 and driven from a pulley 34. The chasing cutter 2 is driven from the the work spindle through a train of gears 5-10 shaft 11 and bevelgearing 12 while further gearing from a wheel 8 drives a change-wheel 24 on a control shaft 15 , all these gears with the exception of the changewheel remaining unaltered for all types of screw. The reciprocation of the cutter is effected through a hollow shaft 14 having a collar 14 arranged in a non-rotary head 30 and traversed axially by an interchangeable cam 31 screwed in bush 28 having external teeth driven through gearing from the control shaft 15a. The stroke of the cam 31 determines the length of the thread and different pitches are cut by adjusting the speed of the control shaft through the change-wheel 24. The chuck 3 is operated from the control shaft by means of a cam on a disc 15 which actuates an arm on a spring-controlled rod connected to the chuck operating device 35. Formulae for calculating the speeds of the work and cutter spindles, the diameter of the cutter and the stroke of the cam 31 are given in the Specification.

65. 发明专利

GB191127046A A New or Improved Process and Means for the Production of Wood Screws and the like. 未知
公开(公告)号：GB191127046A
公开(公告)日：1912-12-04
申请号：GB191127046D
申请日：1911-12-04
申请人： RICHARDS CHARLES , RICHARDS ARTHUR
发明人： RICHARDS CHARLES , RICHARDS ARTHUR
IPC分类号： B23G1/06
摘要： 27,046. Richards, C., and Richards, A., [trading as Richards & Sons, C.]. Dec. 4. Turning wood-screws.-A wood-screw gimleting-machine has a floating work spindle e which is periodically driven and fed axially from a rotating sleeve d by a cam-faced lever i and dog p, The machine is of the type in which the work is advanced towards the tools, which start cutting at the front end of the work and are retracted as cutting proceeds. The lever i, Figs. 1 and 6, is carried by a strap secured to the rotating sleeve, and is operated to engage the dog p by a cone k operated by a hand-lever o. A collar w, which moves radially with the spindle e but does not rotate with it, carries guide-rods w , w , upon the former of which is mounted a templet z for controlling the pivoted tool-holder y. The work is steadied by screwed guides 4. The axial feed and rotation of the work spindle stops automatically as soon as the dog p passes out of contact with the cam i and the spindle is retracted after the operation by a treadle u.

66. 发明专利

GB190927128A Improvements in Apparatus for Making Multiple-threaded Wood Screws. 未知
公开(公告)号：GB190927128A
公开(公告)日：1910-06-16
申请号：GB190927128D
申请日：1909-11-22
申请人： THOMPSON WILLIAM PHILLIPS
发明人： THOMPSON WILLIAM PHILLIPS
IPC分类号： B23G1/06 , B23G1/32
摘要： 27,128. Thompson, W. P., [Arnold, L. & C.]. Nov. 22. [Addition to 9600/09.] Turning wood-screws. - In the machine for milling multiple-thread wood-screws described in the parent Specification, the cutter b, driven through gears 5, 8 and a jointed shaft 7 is mounted in a swinging bracket 4 adapted to be oscillated in order to act on the blank a and to be fed axially by the screw 10 and nuts 11.

67. 发明专利

GB190909600A An Improved Method and Apparatus for Making Multiple Threaded Wood Screws. 未知
公开(公告)号：GB190909600A
公开(公告)日：1910-04-14
申请号：GB190909600D
申请日：1909-04-22
申请人： THOMPSON WILLIAM PHILLIPS
发明人： THOMPSON WILLIAM PHILLIPS
IPC分类号： B23G1/06 , B23G1/32
摘要： 9600. Thompson, W. P., [Arnold, L. & C.] April 22. Turning wood-screws.-Multiple-threaded woodscrews are cut by modifying a machine for cutting single-threaded screws so that it cuts a series of single threads of increased pitch. The blank a is rotated in a chuck b, and the cutter c is mounted on a shaft e, which is oscillated from the cam k to move the cutter in and out of engagement, to taper the screw, and to shape the point as usual. The shaft e is fed axially by a double-threaded spindle f on a constantly-rotating shaft g and returned by a spring p, the half-nuts h, n being successively pressed against the spindle f by cams i, o. The cutter c thus cuts one thread, as shown in Fig. 4, when the nut n is acting, and cuts the second thread, as shown in Fig. 5, when the nut h is acting. If desired, the shaft may be fed axially by a cam instead of the spindlef.

68. 发明专利

GB190903490A Improvements in or relating to Machines for Automatically Cutting or Forming Screw Threads upon Screws. 未知
公开(公告)号：GB190903490A
公开(公告)日：1909-12-16
申请号：GB190903490D
申请日：1909-02-12
申请人： AVERY WILLIAM
发明人： AVERY WILLIAM
IPC分类号： B23G1/04 , B23G1/06
摘要： 3490. Avery, W. Feb. 12. [Addition to 15,091/08.] Turning wood-screws.-The inner rocking frame of the two frames carrying the former-bar for controlling the cut of the tool in threading woodscrews as described in the parent Specification, is dispensed with. The former 3 is mounted to swivel in the rocking frame 1 and is engaged by a stud 13 on an arm 15 of the tool shaft. The stud drops over the end of the former and returns on the flat surface 11. At the end of the return stroke, a cam-operated stud 23 lifts the arm 15 to allow the stud 13 to re-engage with the former. Wnen all the threading-cuts have been made and the rocking frame descends, the pin 26 projects behind the stud 13 and holds the tool-shaft in its forward position, thus acting instead of the trigger mechanism described in the parent Specification.

69. 发明专利

GB190815091A Improvements in Machines for Automatically and Mechanically Cutting or Forming the Screw-threads Upon Screws. 未知
公开(公告)号：GB190815091A
公开(公告)日：1909-03-11
申请号：GB190815091D
申请日：1908-07-16
申请人： AVERY WILLIAM
发明人： AVERY WILLIAM
IPC分类号： B23G1/04 , B23G1/06
摘要： 15,091. Avery, W. July 16. Lathes; chucks. -Blanks for woodscrews are fed down guide-rails 18, Fig. 2, and are taken one by one from the .jaws of an arm 21, Fig. 3, by a feeding-finger 32 and placed in a groove in a die 25 on a slide 26, which moves laterally to insert the blank in the chuck and retires to act as a steady rest. The chuck jaws are mounted on pivoted levers, closed by a spring-pressed cone and opened by a cam - operated rod 40. A reciprocable tool-carrying rockshaft 63 is held in its forward position by the engagement of a detent 103 with a projection 104 on the rock-shaft during chucking and during the pointing of the blank by a tool in a leverrest 60. This rest is carried by the slide 26 and is provided with a stop 62 which engages the end of the die 25. The detent 103 is withdrawn and the shaft 63 is returned to the right, Fig 2, by a spring, and is traversed for screw-cutting by a cam 67 on a shaft 13. A cam shaft 17 geared to the shaft 13 rotates once during the production of a finished screw and control, by a cam 85 the depth of cut. The threading-tool 66 is mounted in an arm 66 on the shaft 63 controlled by a pin 71 riding on a templet 87 carried by a frame 86, loose on a shaft 72 and having pins which rest on cams in a second rock-frame 73. The cam 85 acts through linkage to straighten out gradually a toggle mechanism raising the frame 73, thus, in conjunction with the templet 87, determining the taper of the blank and making the threading- tool take a deeper cut at each successive traverse. The cams in the frame 73 are rotated prior to the return of the tool-shaft 63 to lower the frame 86 and withdraw the tool from the cut. The rotation of the cams is effected by means of a connecting-rod 93, so controlled by two cams 49, 98 on the shafts 17 and 13 that, on the completion of the screw, the end of the rod 93 moves forward sufficiently to operate the detent 103. To reduce the thread towards the point of the screw, the shaft 63 is accelerated and retarded on alternate traverses, while acting on the pointed end, by means of a switch-cam. The pitch-cam 67 acts on the shaft 63 through a sleeve 69 which is slotted to carry a bell-crank lever, with one arm engaging an adjustable abutment in the shaft and the other a pin 110 which engages a surface 112 on an arm controlled by a pin 117. The switch-cam holds the pin 117 against movement during the threading of the shank but on alternate cuts subtracts or adds motion while threading the point by acting on the pin 110 and rocking the bell-crank. When the threading is complete, an arm 122 carrying fingers 131, 132 is rocked to engage the screw and remove it from the chuck. Projections on the fingers engage stops to effect the release of the screw. The lateral motion of the fingers is produced by a projection 129 on the arm 70.

70. 发明专利

NO320984B1 未知
公开(公告)号：NO320984B1
公开(公告)日：2006-02-20
申请号：NO994702
申请日：1999-09-27
申请人： ROBB STEWART
发明人： ROBB STEWART
IPC分类号： B23G1/06 , B23B3/26

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