Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7191530 | Compass assembly A compass assembly includes a tape measure apparatus that includes a housing and a tape measure removably extendable outwardly of the housing. A disc has a top side, a bottom side and a peripheral edge. The disc has a centrally located opening extending therethrough... | 03/20/2007 |
| 7150104 | Tool and method for scribing longitudinal lines on a cylindrical rod A tool for scribing a longitudinal groove on an elongate cylindrical rod suitable for implanting as a prosthetic in a living being supports the rod in a linear groove on a bed of a frame of the tool. A track is mounted on the frame and runs parallel to the groove. A... | 12/19/2006 |
| 7062859 | Measuring and layout device A measuring and layout device having a stationary member having a flat surface adapted to be marked on and an angle and distance device rotatably coupled to the stationary member. The angle and distance device includes a longitudinally and laterally rigid extendable... | 06/20/2006 |
| 7010861 | Marking system A marking system that may be configured to achieve a variety of marking devices. The marking system includes a main body member and a plurality of downwardly directed marking members. ... | 03/14/2006 |
| 6901670 | Scribing head, and scribing apparatus and scribing method using the scribing head A scribing head 1 of this invention raises and lowers a scribing cutter by rotation of a servomotor 3. As a scribe pressure, a rotational torque of the servomotor 3 is transmitted to the scribing cutter. To form a scribe line across another scri... | 06/07/2005 |
| 6757983 | Paver alignment and scribing guide tool and method of use The present invention is a tool for scribing a paver. The tool allows for the alignment and scribing of rectangular pavers to be placed in an arc pattern. The tool includes an alignment head having a left end and a right end. A scribe guide extends from said alignme... | 07/06/2004 |
| 6585018 | Linear guide for shaping tools First and second guide plates are engaged for linear sliding between them by a channel and rib engagement system. A grooving tool is carried by the plate associated with the rib, and the rib is in axial alignment with the tool head, such that the tool hea... | 07/01/2003 |
| 6578279 | Paver alignment and scribing guide tool and method of use The present invention is a tool for scribing a paver. The tool allows for the alignment and scribing of rectangular pavers to be placed in an arc pattern. The tool includes an alignment head having a left end and a right end. A scribe guide extends from s... | 06/17/2003 |
| 6442852 | Scribe device A body (10) movably supports a holder (20) for movement in a vertical direction. A piezo actuator (40) is sandwiched between the body (10) and the holder (20). Vertical vibrations of the piezo actuator (40) are transmitted to a cutter (30) attached to a l... | 09/03/2002 |
| 6195903 | Tools for squaring ends of elongated objects A tool for cutting the ends of conveyor belts square includes a T square having a cross leg standing transverse to the belt when the tool is used and a primary leg extending longitudinally along the belt. A pair of end links are adapted to engage opposite... | 03/06/2001 |
| 5946999 | Clear plastic scoring board This invention is a clear plastic board used specifically for scoring a straight line when place on top of glass or stained glass. The invention allows the artisan to comfortably move the board so as to score by seeing his pattern through the clear plasti... | 09/07/1999 |
| 5681327 | Stereotactic auxiliary means for tomogram-guided implementation of a biopsy A stereotactic auxiliary attachment for a tomography apparatus for conducting a tomogram-guided biopsy of an examination subject has two compression plates for fixing the examination subject therebetween, with through-holes arranged in each compression pl... | 10/28/1997 |
| 5430947 | Attachment for T-square for use with writing implement A geometrical instrument for use with a straight edge to mark positions on a flat surface is described. The instrument has a receiver slot on its rear side. The receiver slot extends the width of the instrument such that the instrument can be slideably mo... | 07/11/1995 |
| 5428900 | Sheet scribing jig A jig which receives a sheet in a selected position to accurately scribe it in a straight line. The jig has front and rear panels which form a vertical slit between them in which the sheet is received. The bottom of the sheet sits on an elongated support ... | 07/04/1995 |
| 5349759 | Slicing guide marker A slicing guide marker for marking impressionable food products with an elongated cantilever arm rotatably attached to a support shaft. The cantilever arm having a marking roller adjacent one end and a counterweight slidably carried by the arm. The markin... | 09/27/1994 |
| 5271305 | Base and clamping bar assembly A support assembly includes a base having end edges along which extend toothed racks for engagement of a clamping bar having meshing detents on its end portions, the clamping bar providing a guide track for a DIY mat cutter. The base is invertible to pres... | 12/21/1993 |
| 5056229 | Sail plotter A device for marking lines on a piece of sail cloth for cutting out sections therefrom for making a sail, comprising an elongated and horizontally extending table for supporting a length of sail cloth thereon and being wider than the width of the sail clo... | 10/15/1991 |
| 4881439 | Cutting apparatus for sheet material Cutter apparatus is provided for sheet material, such as glass, plastic (e.g., plexiglass) or matte boards, particularly designed for use in picture framing, although also usable wherever such sheets need simple and reliable cutting apparatus. The cutter ... | 11/21/1989 |
| 4690506 | Method of producing varied line-space diffraction gratings In a method of producing diffraction gratings by feeding either one of a blank or a groove-ruling tool by an amount consisting of the amount of constant transference and the amount of variable transference that is added thereto, or subtracted therefrom, w... | 09/01/1987 |
| 4590677 | Alignment gauge for scriber tool An alignment gauge and method of use for aligning a scriber tool, the alignment gauge including a base and a pair of upstanding, at least semi-transparent side walls that extend forward of the front edge of the base. A pair of sight lines extend along the... | 05/27/1986 |
| 4570345 | Holding and marking fixture for flat sheets A holding fixture used to mark pieces of sheet material that includes a base and a pair of upraised support towers mounted upon the base. The towers each contain vertical slots for receiving a worksheet therein so that the sheet is supported in a vertical... | 02/18/1986 |
| 4553328 | Guided lifting apparatus Apparatus for lifting a cutter track guide or cloth alignment bar extending across the top surface of a cloth cutting table. On each side of the surface there is a section including a supporting frame in fixed relation to the surface, a lifting member nea... | 11/19/1985 |
| 4547968 | Desktop plotter instrument A plotter instrument for marking on a recording medium utilizes a rotatable pen carousel carrying a plurality of marking pen elements. A carriage drives the pen carousel into engagement with a cam track to produce rotation of the pen carousel and result i... | 10/22/1985 |
| 4545266 | Straight line linkage A mechanical linkage system for generating a straight line and useful as a guidance mechanism utilizing links which do not cross-over in the motion generated. A rigid bellcrank member has a centerpivot connection to a first suspension link, a second pivot... | 10/08/1985 |
| 4519138 | Automatic drafting device with adjusting aid In an automatic drafting device having a carriage with toothed wheels in meshed engagement with a toothed rack which extends across a planar drafting surface and with a control mechanism for controlling movement of a stylus on the carriage to effect draft... | 05/28/1985 |
| 4502225 | Mechanical scriber for semiconductor devices A mechanical scriber using a scribing tip, such as a diamond, provides controlled scriber forces with a spring-loaded compound lever arrangement. The scribing force and range of scribing depth are adjusted by a pair of adjustable micrometer heads. A semic... | 03/05/1985 |
| 4426783 | Marking instrument actuator for plotting apparatus or the like An automated plotting apparatus has a carriage assembly for positioning an axially elongated pen relative to a plotting sheet supported on a plotting surface in response to command signals received from a controller. A solenoid assembly coaxially surround... | 01/24/1984 |
| 4370811 | Apparatus for marking preselected measurements Automatic marking is accomplished by providing a housing that moves along a calibrated guide. The housing is operably connected with a microcomputer which receives preselected marking data. The housing carries a sensor and a marking device. As the housing... | 02/01/1983 |
| 4197649 | Linear marking device A linear marking device is provided comprising a ruled straight edge having transparent properties and constructed with a marking implement groove and unique surface gripping strip.... | 04/15/1980 |
| 4187613 | Jig for precise measurement of panels for geodesic A jig for the accurate and precise measurement of rigid sheet material for making panels for geodesic dome structures. The jig is intended for use in the assembly of geodesic domes of the type having a plurality of generally flat polygonal hub plates and ... | 02/12/1980 |
| 4183274 | Roller scriber apparatus for scribing glass Improved apparatus for scribing glass wherein the dimensional interference for entry is controlled, the force applied is nearly constant over a range of glass thicknesses and the scribing wheel is restrained within close tolerances to prevent wheel wobble... | 01/15/1980 |
