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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 4419846 | Apparatus for grinding optical lenses Apparatus for producing convex and/or concave spherical surfaces such as optical lenses, comprising a workpiece spindle having an end face to which a workpiece to be machined is securable and a tool spindle carrying a tool for machining the workpiece, the... | 12/13/1983 |
| 4418500 | Grinding apparatus An apparatus for grinding two flats of substantially the same dimensions in portions of a conical tip of an element. The apparatus comprises, in combination, a rotatably mounted holding member for holding the element; a rotatably mounted abrasive surface ... | 12/06/1983 |
| 4417422 | Grinding machine A grinding machine with two parallel horizontal spindles which are movable radially of toward and away from each other and wherein each spindle carries a set of several coaxial grinding wheels having different outer diameters. The smaller wheels are neare... | 11/29/1983 |
| 4416092 | Cleaning apparatus The cleaning apparatus includes a wheel in the form of a rapidly rotating drum having relatively few blades spaced circumferentially about the periphery thereof and extending radially thereon. Abrasive material is delivered from a hopper through a slot an... | 11/22/1983 |
| 4409760 | Method for the manufacture of lens-like articles and the like An apparatus for the manufacture of lens-like articles and the like, in which two work holders are provided in a manner to be movable along a common center axis and rotatable thereabout and machining means is provided for surfacing a work or workpiece hel... | 10/18/1983 |
| 4400916 | Indexing generating method for grinding gears An indexing generating method for grinding gears having an involute-shaped tooth flank profile, wherein there are accomplished between a dished or plate-shaped grinding wheel and the gear teeth to-and-fro generating movements as well as feed or advance mo... | 08/30/1983 |
| 4400875 | Dry-shaving apparatus In a dry-shaving apparatus which is adapted to be connected to an a.c. source and which comprises at least one reciprocating cutter, there is provided a self-starting single-phase synchronous motor for driving the cutter. Via at least one drive mechanism,... | 08/30/1983 |
| 4398374 | Polishing machine having a rotary reciprocating shaft The grinding and polishing machine has a tool-carrying spindle (1) driven th a combined rotating and rocking action. It has a driving shaft (4) which is reciprocated axially and passes through a disc (8) which slopes at an acute angle. Above this disc is ... | 08/16/1983 |
| 4395849 | Automatic frequency adjusting method for mechanical resonators A method for automatic frequency adjustment of mechanical resonators, in which plural target frequencies are specified spaced across the distribution curve of the initial resonance frequencies of the mechanical resonators; an output quota for finished res... | 08/02/1983 |
| 4393624 | Thread grinder A machine for grinding threads on a workpiece which is rotated in a workhead while the workhead is reciprocated by a table under a grinding wheel to form threads in the workpiece. To improve the accuracy with which the threads are formed, the workpiece an... | 07/19/1983 |
| 4393908 | Hammer with two detachable heads The heads of the hammer are molded or cast from soft material and are threaded onto opposite ends of a stud extending through a disc on the handle of the hammer. A sleeve nut is welded to a hard metal plate which is captivated within each head and which p... | 07/19/1983 |
| 4392331 | Clampable apparatus for grinding spherical surfaces Clampable apparatus for producing convex and/or concave spherical surfaces such as optical lenses, comprising a frame, a swivel arm in the form of a gantry and mounted on the frame such that its angle of inclination relative thereto is adjustable, the swivel ... | 07/12/1983 |
| 4389772 | Electric dry shaver An electric dry shaver having a movable long hair clipper which is slidable from a retracted position within the shaver housing to an extended position in which the clipping teeth of the clipper are exposed. The clipper includes a relatively fixed blade o... | 06/28/1983 |
| 4388781 | Rotary tool for straddle grinding A rotary grinding tool having two concentric grinding elements projecting in a common direction from one face of the tool is assembled from basic components which can be easily disassembled to permit accurate profile correction and surface renewal of its ... | 06/21/1983 |
| 4387540 | Method of forming reference flats on styli A method of forming reference flats on a plurality of styli comprises the step of placing the styli lengthwise in parallel grooves disposed adjacent the surface of a first plate, allowing the top portions of the styli to project above the surface. A coati... | 06/14/1983 |
| 4384434 | High velocity flame jet internal burner for blast cleaning and abrasive cutting In one form, a cylindrical shell extends from an annular burner body to form an elongated combustion chamber, which chamber bears a cylindrical heat radiator element concentric with and spaced radially inward of the shell. A tube coupled to the opposite e... | 05/24/1983 |
| 4382330 | Coin wrapper cutting tool A coin wrapper cutting tool comprising a principal body portion on which a cutting blade for cutting crimped end portions of wrappers of packaged rolls of coins and an element for shielding the blade when cutting is not required are assembled; the princip... | 05/10/1983 |
| 4378662 | Airless centrifugal blast device An airless centrifugal blast device in the form of a one piece, two-bladed wheel mounted for rotational movement about either a horizontally or vertically disposed axis and means for off center gravitational feed of particulate media to the inner end port... | 04/05/1983 |
| 4374443 | Cleaning machine with particulate abrasive Cleaning machine for blasting the goods to be cleaned. Inside a liquid container there is provided a liquid-permeable compartment or cassette providing a magazine for the granules and connected to a bottom outlet in a treatment chamber wherein the blastin... | 02/22/1983 |
| 4372085 | Apparatus for form-grinding the tooth-flanks of a cylindrical gearwheel In a process and apparatus for tooth-flank grinding of gearwheels, the opposing flanks of two adjacent teeth are initially ground simultaneously. In the terminal stages of the process, each flank is ground separately. A slight rocking motion of the gearwh... | 02/08/1983 |
| 4369573 | Pipe cutter A pipe cutter for cutting the wall of a pipe from within the bore of the pipe. The cutter includes a blade and mechanisms for supporting the blade within the pipe to be cut, urging the blade outwardly of the pipe to engage it with the pipe wall and moving... | 01/25/1983 |
| 4369605 | Methods for preparing tube sheets for permeators having hollow fiber membranes A high degree of openness to the bores of hollow fiber membranes in a tube sheet can be achieved by impacting the region of the tube sheet at which hollow fiber membranes terminate with a particulate abrasive having an average maximum dimension of less th... | 01/25/1983 |
| 4369604 | Method for mechanically preparing stylus lapping discs A keel-tipped stylus for playback of video information from a disc record comprises a tapering body, a constricted terminal region and shoulders joining the tapering body to the constricted terminal region. A method for preparing a deep groove plastic rep... | 01/25/1983 |
| 4368761 | Centering device for a spring core mounting machine A centering device is provided in a spring core mounting machine having at least one pair of clamping jaws for holding together the terminal windings of adjacent helical springs while they are being connected by threading wire helices through them, with t... | 01/18/1983 |
| 4365447 | Apparatus and method for sharpening a cutting stylus Apparatus for orienting a cutting stylus having a mounting face and a cutting face includes a base member having a flat, nonadhesive surface and a stylus holding fixture. The stylus holding fixture includes a mounting block having a surface vertical to th... | 12/28/1982 |
| 4363193 | Universal grinding machine During grinding, a grinding wheel effects movements of solely vertical displacement along a path parallel to a vertical guide rod. The workpiece to be machined is held by a rotatable, but not axially displaceable, chuck secured to a workpiece head. In ord... | 12/14/1982 |
| 4363196 | Gage controlled grinding method A gage controlled grinding method for oppositely disposed commonly tapered end bores in a workpiece, maintaining a constant spacing of two identical bore gage diameters independent of part length is disclosed. A machine such as an internal grinding machin... | 12/14/1982 |
| 4361986 | Device for surface machining A device for working the surfaces of objects, such as abrading and brushing machines and the like comprising a supporting surface for the object to be treated and at least one working member arranged at a distance from the supporting surface and rotatably... | 12/07/1982 |
| 4355490 | Multistation blast processing apparatus A multistation blast processing machine has a conveyor formed as a wheel (2) for workpieces (6) held in several receiving chambers (5) by means of holding devices (13, 13a). Two workpieces (6) are held in axially spaced relationship in each chamber and ar... | 10/26/1982 |
| 4354329 | Loader for grinding machine A loader (10) for a grinding machine includes a loading member (30) with at least one resilient finger (32) thereon for gripping a workpiece (14) to be ground by movement of the loading member in a loading direction as a resiliently biased workpiece posit... | 10/19/1982 |
| 4354328 | Screw type hone assembly for the honing of gears The present invention provides a screw type hone assembly for the honing of gears manufactured by the gear cutting by forming process, the gear cutting by generating process or other like process. The hone assembly comprises a cylindrical sleeve mounted o... | 10/19/1982 |
| 4350407 | Safety lamp plug A fused plug constituting a safety lamp plug is provided for use with a light string set. A molded plastic body of the plug is formed of joined halves which define a first pair of compartments. Electrodes within such compartments define prongs extending f... | 09/21/1982 |
| 4348837 | Method and apparatus for beveling the front end of a felt pad A felt pad having a beveled front end is produced from a workpiece having a flat bottom with an adhesive thereon covered with a strip of paper or the like and a straight front end. The apparatus includes a rotatable shaft having mounted thereon an abrasiv... | 09/14/1982 |
| 4346577 | Method for producing curved valve needles A method is proposed which serves to produce a valve needle of a needle valve. The basis of the method is the production, from a wire serving as the raw material, of a springlike coil on a carrier body, where the adjacent courses of the coil rest on one a... | 08/31/1982 |
| 4346534 | Apparatus for honing cycloidal surfaces An apparatus for abrading and finishing the inner surface of an unusual shape, for example the inner ring of a gerotor device, with a tool holder adapted to carry honing stones for movement along the part surface and driven by a mating part engaging a sta... | 08/31/1982 |
| 4344724 | Cutting tool assembly A cutting tool assembly having a cutter head including a pair of jaws defining a slot therebetween with a knife plate having a pair of axially symmetrical cutting edges being exchangeably mounted in the cutter head in the slot between the jaws is provided... | 08/17/1982 |
| 4343116 | Processes for finishing glass surfaces A method of finishing a glass surface to a close tolerance and a substantially blemish-free state using a moving polishing lap and an aqueous treatment liquid containing inert abrasive particles, in which the treatment liquid also contains a bifluoride wh... | 08/10/1982 |
| 4333277 | Combination sand-blasting and vacuum apparatus A sand-blasting apparatus which is operated by a vacuum system, wherein there is provided a sand-blasting gun having an air-inlet passage and a sand-inlet passage. Air is discharged into a mixing chamber, creating a vacuum therein to suck sand through the... | 06/08/1982 |
| 4331452 | Apparatus for crystal shaping In the present invention, a length of elongated single crystal ingot is mounted adjacent its ends and is ground while being rotated to provide a cylindrical shape. While still mounted, the crystal is rotated into a position to be x-rayed for the grinding ... | 05/25/1982 |
| 4326766 | Optionally fused connector device This invention relates to a connector device, and more particularly to an electrical connector plug, jack, tapping device or receptacle which provides a direct current path between an input and an output terminal, which path is automatically opened respon... | 04/27/1982 |
