Matches 51 - 100 out of 175 < 1 2 3 4 >
Match Document Document Title
5025593 Slicing machine and control method thereof  
A slicing machine of this invention includes a blade having a cutting edge for slicing a silicon ingot, a tension disk for rotatably supporting the blade, a drive motor for rotating the blade, a...
4991355 Apparatus for sharpening points  
A needle sharp conical point can be quickly honed by methods and apparatus that employ reciprocating or rotating abrasive surfaces that may be revolved in a circle around the point being sharpened....
4987702 Surfacing machine  
A surfacing machine for discrete objects includes a generally cylindrical drum with first and second ends, a longitudinal axis extending between the drum ends and a generally cylindrical, coaxial...
4974577 Apparatus for collecting wafers  
An apparatus for collecting wafers sliced from a semiconductor crystal rod, and the apparatus includes a primary mobile member, a secondary mobile member and a wafer collecting assembly. The...
4974578 Housing for mounting a spindle of an internal diameter saw blade  
The wafering machine is provided with a two-piece housing for mounting the spindle of the saw blade. One housing part is mounted on a fixed axis of a support shaft while the other part is pivotally...
4949700 Ingot support device in slicing apparatus  
A slicing apparatus is disclosed which slices a cylindrical ingot into disc-shaped wafers by a rotating blade. The slicing apparatus includes an ingot support device which is used to contact...
4932389 Slicing apparatus with work-feeding mechanism in feedback control  
A slicing apparatus includes: an annular plate-like rotary blade adapted to be rotated about an axle thereof and having an inner peripheral cutting edge; a table for carrying a work; a first...
4896459 Apparatus for manufacturing thin wafers of hard, non-metallic material such as for use as semiconductor substrates  
Method and apparatus for manufacturing thin wafers of hard, non-metallic material, such as monocrystalline or polycrystalline material for use as semiconductor substrates from bars of such material...
4858388 Restoration or drill buttons  
Apparatus for restoring drill buttons or like objects includes a support body and structure for positioning a drive shaft rotatable about its axis. Bearing structure secures the structure to the...
4845895 Internal grinding machine  
An internal grinding machine for grinding the inner surface of a work comprises a traverser table (11) mounted on a bed (10) for sliding movement in the longitudinal direction of the bed, a...
4834062 Multiblade inner hole saw for the sawing of crystal rods into thin blades  
A multi-blade inner hole saw for the sawing of crystal rods or blocks, such as solar cell base material on a silicon base, into thin wafers has saw blades arranged mirror-symmetrically with respect...
4815507 Socket mounted pencil sharpener for cosmetic facial pencil  
A portable, light-weight pencil sharpener specifically designed to sharpen cosmetic pencils of the type commonly known as "eye brow" pencils and including a housing enclosing a blade structure and...
4771759 Method for severing a rod in slices, slicing machine for carrying out the method and use of the slicing machine  
A slicing machine in which a workpiece rod is disposed without cutting base on a table of the machine and it may be brought by means of a feeding slide step by step into a working position in the...
4738055 Methods of adjusting optical fiber connector components  
An alignment sleeve (66) for holding two conically shaped portions (30-30) of plugs (24-24) each of which terminates an optical fiber (25) includes two conically shaped cavities (68, 70)...
4732515 Railroad tracks milling method and apparatus  
For chip-removing machining of the contact surfaces of rails 1, a stationary system is used which to attain high machining output as well as good surface quality uses a rotating, internally toothed...
4716881 Blade mount for inner diameter saw blade  
The saw blade mount is provided with a stabilizer blade mount for imposing an axial force on the saw blade to eliminate unevenness in the saw blade. The stabilizer blade mount includes a gasket...
4712535 Method and apparatus for severing wafers  
A method and an apparatus for severing a workpiece into wafer slices, wherein the inclined surface to be cut can be processed to remove protrusions or impressions which occur around the cut...
4667650 Mounting beam for preparing wafers  
A self-dressing mounting beam for slicing wafers from ingots of various materials, especially semiconductors, is described. The mounting beam is a composite material comprising an organic polymer,...
4668136 Welding electrode dressing device  
A device for "dressing" welding electrode tips is disclosed. The device utilizes an integrally formed air motor, retained within a housing member, to drive a gear train which rotates the welding...
4637369 Apparatus for spanning a center-opening saw blade  
A center-opening saw blade having an inner sawing edge is spanned or tensioned to provide an accurate, high quality cut by apparatus including inner and outer clamping collars between which an...
4633847 Multiple-blade internal-hole saw for sawing crystalline rods  
Crystalline rods or blocks can be sawed into thin wafers by sawing the rod or block into a plurality of wafers that are connected to each other. The wafers can be connected by introducing a...
4633617 Apparatus for grinding a transverse element for a driving belt  
A driving belt of the type comprising an endless carrier supporting a plurality of transverse elements is disclosed. The element includes at least one recess for receiving the carrier and is...
4590712 Vertical spindle duplex head for a grinder  
A vertical spindle duplex head for a grinder includes an annular pressure wheel and a receiver wheel arranged to rotate and revolve workpieces between the annular surfaces of the pressure wheel and...
4537177 Balanced rotary saw assembly and a method of balancing the same  
The saw assembly is provided with a self-contained balancing means for the automatic balancing of the wheel head. In one embodiment, the balancing means includes an annular rotor which is mounted...
4505071 Crankshaft-finishing machine  
A machine for finish-grinding of both axial and off-axial sections of a crankshaft, rotating about a main axis and oscillating therealong, comprises fixed first holders interleaved with movable...
4498845 Pumper bumper  
Method and apparatus by which a malfunctioning downhole pump of the reciprocatory type can be rendered operative by bumping the pump piston against structure associated with the pump barrel. The...
4497138 Apparatus for simultaneously grinding inner and outer workpiece surfaces  
A grinding apparatus comprises a base, a chuck on the base for supporting a workpiece for rotation about an axis, a first on the base to one axial side of the chuck for grinding an internal surface...
4475527 Ingot slicing machine and method  
An improvement in a method for simultaneously slicing one or a multiplicity of boules of silicon into silicon wafers, the improvement of which comprises forming a plurality of vertical stacks of...
4471678 Ring saw for cutting a tube  
A ring-blade saw for cutting a tube generally centered on a tube axis has a subtantially stationary base, an outer frame displaceable in a straight line in a plane, and an actuator connected...
4462724 Photochemically machined cutting wheel  
A cutting wheel comprises a thin metal disk having an inner peripheral cutting edge. The cutting wheel is photochemically machined from a flat metal sheet and has locating holes therethrough the...
4449328 Inside, outside honing tool  
Tools for honing an exterior cylindrical reference surface and for honing an interior cylindrical surface concentric with but offset from the reference surface each have a cylindrical feed sleeve...
4420909 Wafering system  
The wafering system employs a chuck assembly for moving a severed wafer from a crystal through the aperture in the cutting blade to a take-off conveyor. The chuck assembly includes a suction head...
4233783 Device particularly useful for cutting or grinding round girdles of gems  
A cutting device is described particularly useful for cutting or grinding the round girdle surfaces of round-cut gems, the cutting device comprising a plurality of cutting heads each formed with a...
4228782 System for regulating the applied blade-to-boule force during the slicing of wafers  
A system for controlling the blade-to-boule feedrate of a wafer cutting saw to regulate the blade-to-boule force in accordance with predetermined criteria and for monitoring the cutting efficiency...
4209005 Apparatus for cutting silicon having a pivoted work carriage utilizing an air bearing  
The machine tool of the invention comprises a frame (100) with an upper plate (1), an annular saw blade (3) of which the cutting part is made on its inner periphery and which is supported by a...
4205493 Portable chamfering grinding device  
A portable chamfering grinding device for chamfering the end of a metal tube comprising an abrasive wheel and a portable pneumatic motor capable of rotating the wheel at greater than 10,000 r.p.m.,...
4151826 Hydraulic tensioning seal  
An improved fluid-tight tensioning seal is provided for use in apparatus of the type wherein an inside diameter cutting blade is mounted in a circular saw blade housing, the blade being...
4150912 Twin blade mounting and tensioning apparatus  
A twin blade mounting and tensioning apparatus is disclosed wherein twin inside diameter cutting blades for sawing crystalline rod materials are mounted with annular clamping-tensioning members...
4135499 Sealing piston  
In an apparatus for clamping and uniformly tensioning an inside diameter cutting blade, hydraulic fluid is contained within an annular fluid channel which includes an opening confronting the inside...
4116095 Metal sawing or milling machine  
An apparatus for cutting a plurality of selected lengths from a rod-like workpiece. A plurality of annular saws or mills have cutting teeth formed on the inner annuli which have diameters greater...
4112624 Grinding machine  
Grinding machine having annular dressing wheel whose inner surface is used for dressing.
4084354 Process for slicing boules of single crystal material  
A process for slicing boules of a single crystal material such as gadolinium gallium garnet (GGG) into wafers is described. The boule is prepared, by grinding preferably, so that the longitudinal...
4063482 Machine tool indexing mechanism  
The present invention relates to an indexing mechanism for stepwise advancing a workpiece relative to a cutting tool of a machine tool, to enable slices or wafers of predetermined thickness to be...
4063471 Method of grinding the teeth of a circular saw to an improved contour  
A cup-shaped wheel having an abrasive rim is employed to grind the teeth of a circular saw to an improved contour. Only point or edge contact takes place between the abrasive rim and the tooth....
4050487 Electric sharpener  
An electric sharpener is disclosed, wherein its sharpener section is driven by a motor powered from a self-contained battery in an arrangement that said motor and a reduction means for transmitting...
3964349 Method and apparatus for grinding the teeth of a circular saw to an improved contour  
A cup-shaped grinding wheel having an abrasive inner rim is brought into grinding contact with a tooth of a circular saw. The angle of attack of the grinding wheel is such that it imparts a second...
3936980 Method of and apparatus for grinding wire  
A wire is passed along an axial path through a housing having a frame driven rotatably about the axis of the path. A plurality of angularly equispaced arms mounted on shafts parallel to the axis...
3882641 Cabochon gem grinder  
A cabochon gem grinding machine comprising a drum having a cylindrical wall and a lip extending inwardly from the sides of the wall for retaining a slurry of abrasive grain or grit, a pair of...
3853499 APPARATUS FOR FORMING PROGRESSIVE POWER LENS BLANKS  
The present disclosure is directed to a machine and method for grinding lens blanks of progressive power in which an annular abrasive grinding ring having its internal diameter radiused is mounted...
3838678 APPARATUS FOR PRECISELY SLICING A CRYSTAL IN A CRYSTAL FACE THEREOF  
An apparatus for precisely slicing a crystal in a crystal face thereof, wherein the orientation of the crystal fixed to a specimen rest is measured in a crystal orientation identifying device by...
Matches 51 - 100 out of 175 < 1 2 3 4 >