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Class 83/801 - By motor-driven mechanism


Subclass of Class 83 - Cutting
Definition: Device wherein the moving means is actuated by a device
No. of patents: 74
Last issue date: 04/01/2008


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NumberTitleIssue Date
7350444Table saw with improved safety system
A table saw having an adjustable blade, a detection system to detect contact between a person and the blade, and a brake mechanism to engage and stop the blade upon detection of contact between the person and the blade is disclosed. The saw includes a brake position...
04/01/2008
7276003Vertical 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
7152853Manually operated implement
A manually operated implement such as a chain saw, a parting-off grinder or similar device has an internal combustion engine to drive a tool and a handle arrangement to operate the implement. The handle arrangement is connected to the internal combustion engine via ...
12/26/2006
7137182Parallel configuration composite material fabricator
A device for fabricating a composite article having a plurality of material dispensers to increase productivity. The device includes a structure defining a work surface datum, the plurality of material dispensers which are movable relative to the structure, where ea...
11/21/2006
7111720Feed table with force reaction system
A feed table with force reaction system for counteracting clamping forces on a shuttle vise used to move a workpiece toward a machine tool. In a first embodiment, lever arms are attached to an upper guide rail between two vertical columns. A reaction actuator interc...
09/26/2006
7104174Log sawing apparatus and method
A saw mill has a head having at least one saw. The head is configured to travel on a track longitudinally to make alternating cuts between laterally spaced apart first and second work pieces. After traveling forward longitudinally to make a first cut of the first wo...
09/12/2006
7055250Machine tool for cutting plate and sandwich panels
A machine for cutting plate-shaped workpieces, incorporates a tool guide (7), an operating handle (13), and a cutting tool (6) which revolves along the tool guide (7). By moving the operating handle (13), the tool guide (7) ...
06/06/2006
6979153Deep-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
6868765Contour-cutting machine having a light-weight knife carrier
A contour-cutting machine, in particular for foam. A workpiece table (1) with a table gap (4) and a drive (2) for moving workpieces (3) in the longitudinal direction (X). A movable cutting-element carrier (20) with four pulleys (
03/22/2005
6834572Adjustable drive chain saw woodworking machine
A woodworking machine includes an adjustable table for holding a workpiece thereon and a drive chain saw spaced from the table and having cutting teeth on one edge and drive engaging chain guides adjacent an opposite edge. The drive engaging chain guides engage a dr...
12/28/2004
6772749Band saw
A band saw with a complex coordination of a tilting motion and a translational motion between the workpiece and the band saw blade, so that a curved cut is made in the workpiece. The geometric parameters of the cut can be continuously adjusted. This makes it possibl...
08/10/2004
6655429Saw mill with apparatus for guiding a board and method for use thereof
A saw mill includes a base frame having a front and a rear and being sized and configured to support a log; saw apparatus having a cutting blade and being connected with the base frame for horizontal movement in a cutting stroke from a start position near...
12/02/2003
6510774Cable-saw machine
The present invention pertains to a cable saw (1) with a frame (2), a motor drive (7) and a driven cable storage unit (6) for the sawing cable (3) moved in a circulating manner. The drive (7) has a plurality of adjacent drive wheels (11, 12), around which...
01/28/2003
6382062Apparatus for controlling work feed rate for cutting wood, metal and other materials
A positioned sensing device measures and/or calculates the lateral position and movement of a saw blade. These measured and calculated values are used to automatically alter the work-feed rate and/or saw blade rim speed either up or down as sawing conditi...
05/07/2002
6325119Device for producing square beams from tree trunks
To produce square beams from tree trunks (13), a device is proposed in which a tree trunk (13) is first positioned by a centering device (4) such that the lengthwise axis (14) of the tree trunk (13) assumes essentially always the same stipulated position....
12/04/2001
6041683System for adjusting the rotation speed of a cross-cutting saw of a tree handling machine, especially grapple harvester
An apparatus for adjusting the rotation speed of a cross-cutting saw of a tree handling machine, especially grapple harvester is provided. The apparatus is arranged to control a hydraulic cylinder connected to the guide bar of the cross-cutting saw in a p...
03/28/2000
5878644Pivotable carriage vertical band saw machine
A vertical band saw machine in which a carriage assembly is mounted for pivoting on a base by rotational pivot points. Pivoting of the carriage assembly enables the band saw machine to make miter cuts to a workpiece. The head frame of the band saw machine...
03/09/1999
5524517Apparatus for cutting columnar structures with reciprocally movable tensioned cutting wire
Systems and methods for cutting a well casing and then capping the cut well casing are provided. A well casing cutting assembly having a tensioned wire cutting element may first be moved into position relative to the well casing and operated so that the c...
06/11/1996
5353910Shuttle vise assembly for a feed table apparatus
A feed table apparatus (30) for moving a workpiece (31) toward a machine tool. The apparatus (30) comprises a roller assembly (32) which provides rolling support of the workpiece (31) toward machine tool and a shuttle vise assembly (36) for moving the wor...
10/11/1994
5347903Horizontal bandsaw with automatic tilt control
A horizontal bandsaw is mounted in a tool carrier above a workpiece location. Before it starts cutting the bandsaw is tilted an angle between 3° and 10° and after the initial cut that angle is maintained during the rest of the cut until the intended dep...
09/20/1994
5320016Vertical band saw
To permit miter cuts clear through a workpiece, or for selected depths, a saw band carrier (6) supports a pair of saw band wheels (7, 8) above and below a workpiece support (2), and the saw band wheel carrier (6) is pivotable about a substantially vertica...
06/14/1994
5213022Multi-directional portable band sawmill for lumber and firewood
The invention is a portable band sawmill which is able to make bi-directional horizontal cuts, as well as vertical cuts. A special carriage with a U-shaped inner member pivotally connecting two band saw wheel support members makes this possible. The wheel...
05/25/1993
5178052Machine for cutting in items of elastic material
By means of a cutting machine according to the invention, the cutting of blocks of foam rubber can be effected in a more precise, less energy-demanding and at the same time less space-demanding manner compared to the known machines. This is achieved by a ...
01/12/1993
5107738Two-way band saw machine
To cut a workpiece along two different cutting directions, the band saw teeth are set in a first vertical cutting direction by a band saw guide device and then the cutting head (CH) is moved frontward, for instance; thereafter, the band saw teeth are twis...
04/28/1992
5035166First 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
4926728Band saw for cutting shaped pieces of bar stock
The present invention relates to a band saw machine having the capability to produce finished piece parts by employing a rotatable collet and an index vise to rotate and longitudinally position the piece part, a band saw blade positioned in a blade twist ...
05/22/1990
4913205Continuously moving lathe knife
A continuously moving lathe knife is provided which can be retrofit to an existing lathe carriage. The knife assembly includes a chain bar secured to the knife carriage with a pair of sprockets at either end of the chain bar. An endless loop chain extends...
04/03/1990
4901612Band saw apparatus and method with pressure controlled feed
Band saw apparatus is disclosed which includes cutting enhancement apparatus formed for tilting of the cutting stretch of the band saw blade to vary the force per unit area of the cutting edge of the blade on the workpiece. The cutting enhancement apparat...
02/20/1990
4854208Two-way band saw machine
To cut a workpiece along two different cutting directions, the band saw teeth are set horizontally by a band saw guide device and then the cutting head (CH) is moved frontward, for instance; thereafter, the band saw teeth are twisted downward by the same ...
08/08/1989
4796681Continuously moving lathe knife
A continuously moving lathe knife is provided which can be retrofit to an existing lathe carriage. The knife assembly includes a chain bar secured to the knife carriage with a pair of sprockets at either end of the chain bar. An endless loop chain extends...
01/10/1989
4766790Band saw apparatus and method
Band saw apparatus is disclosed which includes a drive assembly formed for support and guided movement of a saw blade for cutting of a workpiece, an endless band saw blade mounted to the drive assembly, and reciprocation apparatus formed for reciprocation...
08/30/1988
4722258Log sawing apparatus
A hydraulically powered treelength log sawing apparatus has a log support lined with teeth opposing the outwardly-directed sawing force generated by its driveshaft-pivoted chainsaw. The chainsaw is driven by a hydraulic motor whose fluid exhaust flows thr...
02/02/1988
4700597Method for controlling cutting machines
A method of controlling a cutting machine to cut workpieces according to the machinability of the workpieces includes the steps of providing a plurality of predetermined constant voltage outputs, each constant voltage output corresponding to a predetermin...
10/20/1987
4700596Method and apparatus for controlling the feeding of a bandsaw blade in bandsaw machines
A method and apparatus for controlling the cutting of bandsaw machines includes continuous feeding of the bandsaw blade relative to the workpiece by alternating the speed at which the bandsaw blade is fed relative to the workpiece between fast and slow, s...
10/20/1987
4665786Log handling and sawing system
A sawmill in which a multi-log supporting mechanism is constructed wherein logs are grasped at spaced angular positions about the mechanism and rotated by it between an initial receiving position to a profile measurement position and then to a sawing posi...
05/19/1987
4658689Vertical band saw with cantilever frame
A vertical band saw is supported forward from a rolling carriage in a cantilever fashion by a pivot which allows inclined as well as vertical cuts to be made in a workpiece. The carriage is supported on V-rollers with vertical axes which travel along rail...
04/21/1987
4625603Vertical cutoff saw with feed rate control
The specification discloses a vertical cutoff saw capable of maintaining relatively constant band loading. The saw includes a carriage, a frame supported on the carriage, and a saw band supported by the frame. The frame is horizontally shiftable with resp...
12/02/1986
4620465Apparatus for controlling cutting machines
A cutting machine has a plurality of switches, each switch corresponding to a predetermined cutting speed for each of one of the various groups of materials to be cut, the materials having different machinablility qualities. One of a plurality of constant...
11/04/1986
4592261Cutting device for extra fringe of laminated glass interlayer
A cutting device comprises an endless band cutter extending between two pulleys, a sliding piece slidingly contacting with the rear face of the endless band cutter to remove adherent from the endless band cutter, and a side plate so arranged as to separat...
06/03/1986
4579026Band saw machine and method for cutting a stock with such machine
A band saw machine which comprises a generally elongated frame structure including an endless band saw trained between and adapted to travel over a pair of spaced guide wheels and having cutting and return reaches therebetween, a positioning mechanism for...
04/01/1986
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