"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7770832 | Chipper device and method for chipping metal ingots A chipper device for chipping one or more metal ingots. The chipper device includes a cutter head and a guide mechanism associated with the cutter head. The guide mechanism includes a chute having a passageway. A feed mechanism is adapted to move one or more ingots ... | 08/10/2010 |
| 7178566 | Process and apparatus for producing veneer strips, chipped wood or the like The invention relates to a process and an apparatus for producing veneer strips, chipped wood or the like, individual pieces of wood being joined together, with grains parallel, to form a group and then a multiplicity of such groups being arranged one behind the oth... | 02/20/2007 |
| 6929202 | Method and arrangement for feeding wood batches into a pressure grinder A method of feeding a wood batch into a pressure grinder, the method comprising first collecting the wood batch to be fed into the grinder into a separate batch chamber above a side feeding chamber, from which the wood batch is lowered vertically by means of a separ... | 08/16/2005 |
| 6241169 | Method and apparatus for mechanical defibration of wood A system for mechanical defibration of wood kneads the wood by moving a defibration surface having contours at least partly in contact with the wood in a direction at a speed in relation to the wood and fibres are separated from the wood. The contours of ... | 06/05/2001 |
| 6109550 | Arrangement for providing continuous grinding in a pulp grinder An arrangement for providing continuous grinding in a pulp grinder comprising a feed chute and a piston in the feed chute moving lengthwise of the feed chute for pressing the wood in the feed chute against a grindstone. The arrangement comprises rotary fe... | 08/29/2000 |
| 6095443 | Arrangement for feeding wood in a pulp grinder An arrangement in a pulp grinder comprising a grindstone, a feed chute extending to the grindstone, a piston moving in the feed chute, an auxiliary piston and closing members. In the arrangement, there are recesses on the front of the piston and apertures... | 08/01/2000 |
| 6082642 | Apparatus and method for pulverizing compressible materials An apparatus for pulverizing a collection of pieces of materials such as vulcanized rubber to create a very fine powder. The apparatus includes a piston and a cylinder which places the material to be pulverized under extremely high pressure of at least 1,... | 07/04/2000 |
| 5967434 | Apparatus for grating cheese and the like An apparatus for grating or shredding cheese or like foodstuff, or for storing it in a ready-to-grate or -shred condition. A container is provided within which cheese, or like foodstuff, is mounted or stored on a spring-loaded plate, being captured at the... | 10/19/1999 |
| 5927625 | Hay cutting machine An apparatus for cutting hay, straw, or other agricultural materials is provided with an intake hopper which directs a supply of material to be cut into a holding chamber. The material in the holding chamber is separated from the material remaining in the... | 07/27/1999 |
| 5785263 | Waste tire pulverizing and separation apparatus A waste tire pulverizing and separation machine including a machine body, and a roll-in mechanism, a pulverizing barrel, and a separation conveyer accommodated in the machine body. The roll-in mechanism is mounted at an input side at an upper side of the ... | 07/28/1998 |
| 5692549 | Feed rollers for chipper A chipper for chipping wood material has first and second feed rollers at an inlet. The first and second feed rollers are secured to a frame of the chipper with the axes of the feed rollers being parallel and spaced apart. The first and second feed roller... | 12/02/1997 |
| 4718611 | Device for production of mechanical pulp The invention relates to a device for the production of mechanical pulp from a lignocellulose material, comprising a grinding disc (1) rotating round a shaft (2) running at right-angles through the center of each end surface of the disc, and means (10-13)... | 01/12/1988 |
| 4534390 | Portable chipper with relatively low power high torque tree feed mechanism for feeding the tree or other product to be chipped at a controlled feed angle A whole tree feeding and chipping assembly for longitudinally feeding whole trees with attached limbs and branches to a chipper wherein the chipper disc is arranged crosswisely at an acute angle to the longitudinal pathway of feed, and a feed works is pro... | 08/13/1985 |
| 4456503 | Apparatus for manfacturing mechanical pulp A method and a device for the manufacture of mechanical pulp from lignocellulosic material by forcing the said material into contact with a grinding disc (1) which revolves about a central axle (2) perpendicular to the two end faces of the disc. The mater... | 06/26/1984 |
| 4445973 | Method and device for the manufacture of mechanical pulp A method and a device for the manufacture of mechanical pulp from lignocellulosic material by forcing the said material into contact with a grindstone (1) which revolves about an axle (2). The material is supplied in bulk, particulate form, preferably as ... | 05/01/1984 |
| 4274600 | Method of and a grinder for grinding wood under pressure A method of grinding wood under pressurized conditions in a grinder according to which wood is fed in batches into a pressurized gas-filled grinding chamber provided with a rotary grinding means. The wood batches are fed through a feeding chamber provided... | 06/23/1981 |
| 4270703 | Method of and a grinder for discharging groundwood stock when grinding wood under pressure A method of discharging groundwood stock when grinding wood under pressurized conditions in a grinding chamber, according to which the groundwood is suspended into stock and collected in a tank provided with an outflow for groundwood stock to atmospheric ... | 06/02/1981 |
| 4222531 | Wood pulper with constant wood feed The invention concerns a wood pulper of the kind in which wood is fed via a hopper having advancing elements arranged on two opposite sides by which wood is advanced to a grinding stone. The invention is characterized in that said advancing elements compr... | 09/16/1980 |
| 4128211 | Colorant comminuting apparatus for plastic article forming machine An apparatus is disclosed for comminuting a colored pigment bar and mixing the comminuted pigment with an uncolored plastic material to form a colored plastic material which is subsequently molded or extruded into a colored plastic article. The apparatus ... | 12/05/1978 |
| 4057193 | Apparatus for introducing controlled amounts of pigment into thermomechanically formed plastic articles A micrometer mixer having a rotary cutter with a replaceable shaver means is used to powderize pigment bars and mix it with plastic pieces. The apparatus further has a hopper and chute mechanism and a controllable trigger mechanism to automatically feed t... | 11/08/1977 |
| 4057192 | Tree harvesting machine Machinery for reducing forest products to wood chips wherein a bed conveyor, a powered roll mounted for vertical movement above the bed conveyor, and powered, generally vertical side roll means downstream of the generally horizontal roll, feed a tree or l... | 11/08/1977 |
| 3979075 | Machines for cutting wood and other ligneous materials into small pieces A cutting machine for cutting ligneous materials into small pieces comprises a toothed cutting cylinder and a reaction member. In a mobile version of the machine the reaction member is in the form of a toothed felling cylinder 14, which is tangentially mo... | 09/07/1976 |
| 3974725 | High volume cutter for elongate food products A machine for cutting or slicing celery, carrots, or other elongate vegetables into pieces of selected size, accomplished on a rapid and highly economical basis. My machine utilizes a plurality of endless, moving belts, with one of the belts being arrange... | 08/17/1976 |