Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7325473 | Saw blade guide and components therefor An improved guide for stabilizing the saw blade of a saw mill assembly is provided. The guide includes a guide block having a first surface for engaging a surface of a saw blade and a second opposing surface. A threaded shaft extends outwardly from the second surfac... | 02/05/2008 |
| 7311029 | Quick-pin blade tensioning device A quick-pin blade tensioning device for a band saw comprises a sliding tension bracket coupled with an upper arm of the band saw. The sliding tension bracket engages an upper band wheel which has a band saw blade coupled to it. A lifting shoe, slidably disposed with... | 12/25/2007 |
| 7287330 | Chain saw automatic tensioner A chain saw automatic tensioner preferably includes a base plate, a chain bar, a tensioning cylinder, a sliding block and a pusher block. The base plate includes a sliding slot that is sized to slidably receive the sliding block. The chain bar includes a substantial... | 10/30/2007 |
| 7276003 | Vertical band saw machine with a speed ratio varying device A vertical band saw machine includes a first transmitting shaft driven by a drive force of a motor, a second transmitting shaft journaling a lower blade mounting pulley for rotating an endless band saw blade, and a speed ratio varying device coupling the transmittin... | 10/02/2007 |
| 7225712 | Motion detecting system for use in a safety system for power equipment A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system associated with the detection system to cause a predetermined action... | 06/05/2007 |
| 7210387 | Vertical band saw machine A vertical band saw machine includes a base, an upright post extending from the base, amounting frame slidably retained relative to the upright post, upper and lower blade mounting pulleys and a tension-equalizing guider pulley rotatably mounted on the mounting fram... | 05/01/2007 |
| 7185437 | Chainsaw bar tensioning apparatus A chain saw bar tensioning apparatus is disclosed comprising a sliding member having a recess formed therein. The sliding member is adjacent to a first tensioning member that biases the sliding member in a direction such that when the apparatus is incorporated into ... | 03/06/2007 |
| 6979153 | Deep-grooving insert having stepped cutting edge A deep-grooving chip-forming cutting insert includes a rear mounting portion, a front cutting portion, and a pair of side walls, each side wall extending along the front and rear portions. The front cutting portion includes a front end surface, a top surface, and a ... | 12/27/2005 |
| 6539832 | Hydraulic stretching device for a saw chain A hydraulic stretching device for a saw chain active in sawing apparatus having a saw bar and including a holder (1), a driving wheel (3) for the saw chain arranged essentially stationary in relation to the holder and a guiding part (7) permanently arrang... | 04/01/2003 |
| 6073531 | Saw blade adjusting device of a band sawing machine A saw blade adjusting device of a band sawing machine includes an urging seat, an urging knob, an adjusting knob, a sliding seat, and a wheel frame. The urging seat has projections and depressions at a top end thereof, and the urging knob has urging porti... | 06/13/2000 |
| 5802939 | Table top band saw A table top band saw that is almost entirely assembled of molded plastic components to provide for ease of manufacture and assembly. The band saw includes a plastic housing enclosing a pair of opposed plastic wheels that are configured to allow for rotati... | 09/08/1998 |
| 5109744 | Band saw for cutting animal carcasses A band saw for cutting animal carcasses and the like includes a housing and a lid rotatably connected therewith for movement between open and closed positions. Within the housing are provided a pair of pulleys for supporting a cutting band. Guides are pro... | 05/05/1992 |
| 5035166 | First fully adjustable sawmill with precise rapid cut band saw A sawmill includes a band saw mounted on a trolley. The trolley carries the band saw back and forth across the length of a log to cut it into boards. A log supporting table is adjustable to accomodate logs of various size. The trolley rails descend increm... | 07/30/1991 |
| 4960026 | Quick action band saw blade tensioning device A quick action band saw blade tensioning device is disclosed. The band saw blade tensioning device is used in a band saw machine having at least upper and lower band saw supporting wheels operatively rotatably mounted to a supporting frame. The band saw b... | 10/02/1990 |
| 4926733 | Saw blade tensioning arrangement A saw-blade tensioning arrangement for band saw and like machines which includes a hydraulic cylinder (6) having arranged for movement therein a piston (7) which is intended to activated saw-blade tension control means (2). The blade tension is, in this w... | 05/22/1990 |
| 4463638 | Band saw An improved design for a band saw comprises a four wheeled blade guide with a pivotal spring-biased tensioning means and an emergency cut off switch that is actuated upon blade breakage. A band saw comprising of pivot mounted frame as to achieve a parallel ... | 08/07/1984 |
| 4386545 | Alinement and support means for guiding pulley of band saw An elongated stamped sheet-metal slider member facilitates the alinement and support for the guiding pulley of a band saw. The slider member has several integrally-formed portions. A first portion depends within the housing, and the pulley is rotatably su... | 06/07/1983 |
| 4361960 | Chain saw bar with automatic tensioning A chain saw guide bar assembly (30) having improved automatic chain tensioning, vibration damping and lubrication properties, and related lubrication methods are provided. A nose guide member (34) rotatably carrying an idler sprocket (34.1) is mounted to ... | 12/07/1982 |
| 4356750 | Band saw tension and tracking assembly A combined tensioning and tracking assembly is provided for use with band saw tools. A continuous saw band is supported by three spaced-apart pulleys. A bar, supporting one of the pulleys, is mounted for sliding and tilting movement, with the sliding move... | 11/02/1982 |
| 4329901 | Elastomeric strain system for bandmills A bandmill has a frame, first and second bandwheels for receiving and guiding a bandsaw, the bandwheels being rotatable about spaced-apart, generally parallel axes of rotation, first and second arbors of the first and second bandwheels respectively, appar... | 05/18/1982 |
| 4050339 | Automatic carousel-type meat cutting machine An automatic carousel-type meat cutting machine in which slabs of meat are placed between pairs of rotating jaws that move around a center vertical axis. One jaw in each pair of jaws is spring-biased for gripping the meat, but the weight of the meat will ... | 09/27/1977 |
| 4001937 | Portable power driven band saw An improved portable band saw having a unitary, rigid frame or housing, a novel blade tensioning mechanism, an improved drive arrangement for delivering power to the saw, and a more efficient and economical blade guide arrangement.... | 01/11/1977 |
| 3946634 | Band mill strain mechanism Strain mechanism for bandmill using deadweight lever mechanism in which undesirable effects of inertia of counterweight and friction at knife edges are reduced. Rolling diaphragm air cylinder is used in one of three positions. In first position cylinder e... | 03/30/1976 |
