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| Number | Title | Issue Date |
| 7246446 | Adjustable guide rail for hand tools A method and apparatus are provided for constructing and operating an adjustable guide rail for hand tools, by attaching an elongated blade to a guide with a locking ratcheting apparatus. The locking ratcheting apparatus is thumb-operable. The elongated blade includ... | 07/24/2007 |
| 7112018 | Automatic position-locking tool carrier apparatus and method An automatic position-locking tool carrier apparatus and method include a carriage that rides on a first rail and a second rail translatably connected to the carriage perpendicular to the first rail. Pinion gears that engage with the two rails are attached to the ca... | 09/26/2006 |
| 5191715 | Drafting head for a drafting machine The invention concerns a drafting head for a drafting machine, with a gring member (4) having several actuating elements (6, 8, 10) arranged on the gripping member (4) and capable of being actuated by a hand of the user that is resting on the gripping me... | 03/09/1993 |
| 5142789 | Head of universal parallel ruler A head of a universal parallel ruler having a base 2 supported so as to be movable in parallel on a drafting board comprises a scale mounting plate 16 having an upper portion supported so as to be rotatable on the upper face side of the base 2 and a handl... | 09/01/1992 |
| 4837938 | Scale balancing device in drawing machine In a scale balancing device, a rotating moment balancing a moment developed by the dead load of the scale is exerted by the tension member having tensile elasticity upon the rotatable member adapted to be rotated concentrically and integrally with the sca... | 06/13/1989 |
| 4785546 | Lithographic production planning system A production planning system for use in providing color-separated films to a litho platemaker. The system utilizes a programmed computer for gathering and storing information relative to various images of a particular production job. A computer/digital ta... | 11/22/1988 |
| 4738029 | Numerically or manually controlled moving carriage drafting machine A numerically or manually controlled moving carriage drafting machine with digital X-Y position and angle indication, input keyboard, ruler holder and lowering mechanism for tubular pens or similar writing instruments at the drawing head is particularly c... | 04/19/1988 |
| 4682822 | Electronic carriage brake for a drawing machine On an electronic carriage brake for a drawing machine, the power stage (18) associated with a brake magnet (12) for a considered co-ordinate direction is triggered directly via the output signal from a comparator (24), to which the measured position signa... | 07/28/1987 |
| 4625410 | Computer-aided drawing or engraving device The invention concerns a drawing or engraving device which has a first trlling carriage system with a first and second guide rail each supporting a moving travelling carriage. The second guide rail is attached to the travelling carriage on the first guid... | 12/02/1986 |
| 4601107 | Scale balancing device in universal parallel ruler device A scale balancing device for use in a universal parallel ruler device having a head, a spindle rotatably supported on a non-rotating part of the head, a scale mounting plate fixed to the lower spindle, a handle fixed to the upper spindle, and scales mount... | 07/22/1986 |
| 4587742 | Scale balancing device in universal parallel ruler device A scale balancing device for balancing the weight of the scales of a universal parallel ruler, the device having a head structure having the scales rotatably mounted thereon, a rotating member rotatably mounted on the head structure separate from the scal... | 05/13/1986 |
| 4580351 | Scale balancing device in universal parallel ruler device A scale balancing device for balancing the weight of a scale of a universal parallel ruler, having a head structure having a rotating scale support rotatably mounted thereon on which the scales are carried, the scale support and scales having a center of ... | 04/08/1986 |
| 4578872 | Scale balancing device in universal parallel ruler device A scale balancing device for balancing the weight of the scales of a universal parallel ruler, the device having a head structure having a rotating scale support rotatably mounted thereon on which the scales are carried, a rotating member rotatably mounte... | 04/01/1986 |
| 4571846 | Scale balancing device in universal parallel ruler device A scale balancing device for balancing the weight of the scales of a universal parallel ruler, the device having a head structure having a rotating scale support rotatably mounted thereon on which the scales are carried, a rotating member rotatably mounte... | 02/25/1986 |
| 4559715 | Drafting machine A drafting machine has fixed parallel top and bottom rails (R-1,R-2) and a center rail (R-3) which is movable perpendicularly along the fixed rails and has a carriage (4) carrying a protractor head (6) which in turn carries a straight edge assembly (2) in... | 12/24/1985 |
| 4527340 | Holding and guiding device for traveling-carriage drafting machines A holding and guiding device for lettering and drafting instruments adapted to be mounted on a traveling-carriage drafting machine. An additional slide rail is disposed in parallel to the vertical slide rail, with the additional slide rail carrying a slid... | 07/09/1985 |
| 4520573 | Guide rail for a drawing machine carriage A guide rail for a drawing machine carriage has a single part or multipart rack configuration for guiding a carriage with a longitudinally extending slot through which projects the supporting arm of the carriage. In order to achieve simple and reliable dus... | 06/04/1985 |
| 4495708 | Drawing head for a drawing machine A drawing head for a drawing machine has a base plate with a central bore. he base plate is nonrotatably attached to the drawing machine. A rotatable straightedge support under the base plate has a central pin extending through the central bore. A nonrotat... | 01/29/1985 |
| 4486957 | Drawing machine carrriage A drawing machine carriage has a horizontal carriage which is driven on a rizontal guide rail. A vertical guide rail is positioned on this carriage, and a vertical carriage which supports a drawing head is driven on the vertical guide rail. Brakes for the... | 12/11/1984 |
| 4486958 | Drawing head A drawing head has a base plate which has a central bore and which is rotbly mounted on a drawing machine. A straightedge support assembly includes a straightedge support mounted on a rotatable pin in the central bore. A cover plate is nonrotatably mount... | 12/11/1984 |
| 4486956 | Control device for drawing instruments This control device consists of a slider disposed within the portion of the hollow head which rotates with the rules; this slide is provided with a guide T-shaped and member is pivotally interconnected to a thumb-piece accessible from outside the head. Th... | 12/11/1984 |
| 4483081 | Head supporting device for universal parallel ruler A head supporting device for moving a universal parallel ruler containing a head assembly and a scale in a vertical direction in planes substantially parallel to that of a drawing board which comprises a cursor-side link member, a head supporting link mem... | 11/20/1984 |
| 4438569 | Drafting machine A drafting machine includes a pair of perpendicular straight edges slidably mounted with respect to reference scales integrally mounted within the drafting machine. A fine adjustment mechanism includes a worm and spur gear combination for moving the strai... | 03/27/1984 |
| 4430805 | Rail type universal parallel ruler device A rail type universal parallel ruler device comprising a drawing board, a horizontal rail mounted on the drawing board, a horizontal cursor mounted shiftably on the horizontal rail, a vertical rail connected to the horizontal cursor, a vertical cursor mou... | 02/14/1984 |
| 4430797 | Plotting device A plotting device is disclosed containing a traveling carriage drawing apparatus and distance measuring devices in the traveling carriages which emit a number of electrical pulses which are proportional to the displacement of the traveling carriages and w... | 02/14/1984 |
| 4386470 | Drafting apparatus Drafting apparatus comprises a drafting head having X and Y scribing edges. The drafting head is mounted for movement along a beam in the Y direction and its position is detected by an encoder. The beam is mounted for movement in the Y direction relative ... | 06/07/1983 |
| 4367589 | Drafting machine head A drafting machine head in accordance with this invention is provided with a rotatable drawing ruler carrier whose angular position on a graduated circle is incrementally detected by means of scanning elements and is converted into displayable angular val... | 01/11/1983 |
| 4359824 | Protractor unit for drawing-board On the head of a conventional drawing apparatus, locking means consist of a toothed circular plate 1 integral with the support C, a toothed circular plate 2 integral with the turning handle and rule carrier, the plates 1,2 being concentric and rotating in... | 11/23/1982 |
| 4359825 | Drafting machine attachment An attachment for a drafting machine having a protractor head has a scale which is securable to the head. By operation of the head, the scale is movable on the drawing board between a first position and a second position disposed at a predetermined acute ... | 11/23/1982 |
| 4334364 | Adjustable straight edged device for use with drafting board An adjustable straight edged device for use with a drafting board includes a straight edged blade which is adjustable to different angular orientations on the drafting board and is positively and precisely aligned in a horizontal orientation across the bo... | 06/15/1982 |
| 4333245 | Head supporting device for universal parallel ruler A head supporting device for a universal parallel ruler is disclosed. The head supporting device connects the operating head of the ruler, having the scales attached thereto, to the cursor of the ruler, which is movable along a longitudinal rail. When the... | 06/08/1982 |
| 4327499 | Drafting apparatus The present drafting apparatus comprises a drafting board (1) having secured to one longitudinal edge thereof a metal rail (4). A runner (3) and a rail (2) are displaceable along the metal rail (4). The runner (3) is pulled against the metal rail (4) by m... | 05/04/1982 |
| 4312132 | Rail type universal parallel ruler device A rail type universal parallel ruler device wherein a balance weight is provided which is connected to the head by means of a cord or the like and shifts along a vertical rail in a direction opposite to the shifting of the head. A fixed magnet is disposed... | 01/26/1982 |
| 4268969 | Universal parallel ruler including scale setting device A universal parallel ruler is disclosed. A desired angle of rotation of a preset member relative to a base line is selected. This angle of rotation is introduced into the ruler via an input station mounted on the ruler. The desired angle of rotation of th... | 05/26/1981 |
| 4242804 | Universal digital converter for drafting machines A universal digital converter for drafting machines operable to sense and instantly display numerically on one of the machine scales incremental linear or angular movements thereof. A sensor mounted on the scale has a wheel in rolling contact with the dra... | 01/06/1981 |
| 4241512 | Drawing apparatus A drawing apparatus provided with calculative function of a calculation portion. A universal parallel ruler in which operating keys and a calculation result display portion for operating the calculative function are disposed on the surface of a member, th... | 12/30/1980 |
| 4221056 | Universal parallel ruler with converted display of displacement A universal parallel ruler is disclosed. The ruler includes two digital read-out displays for displaying the displacement of the ruler in the x and y directions. In displaying the position of the ruler along the directions, the ruler compensates for the d... | 09/09/1980 |
| 4151649 | Universal parallel ruler device A universal parallel ruler device has a head supported shiftably with its fixed posture being maintained in a desired direction along the surface of a drafting board, a straightedge mounted swivelably in a plane parallel to the surface of the drafting boa... | 05/01/1979 |
| 4121343 | Picture frame mat opening marker A mat opening marking device is provided for laying out full line rectangular openings to be cut in picture frame mat material, and the like. A thin, transparent plate member on one side mounts a straight edge member which can be adjusted to various paral... | 10/24/1978 |
| 4087916 | Drawing table with a telescopic arm A drawing table has a drawing board with a telescopic arm slidably mounted on a rail secured to the board. The telescopic arm has a base sliding on the rail and the other end of the telescopic arm supports a drawing set. The telescopic arm includes brakin... | 05/09/1978 |
