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| Number | Title | Issue Date |
| 4358888 | Automatic tool changer with internal tool storage magazine A vertical spindle numerically controlled machining center includes a stationary bed or base on which a workpiece holding table is slidably mounted for movement along a first axis. A vertically extending upright or column, having a vertically reciprocal s... | 11/16/1982 |
| 4356609 | Spindle keylock A spindle keylock for stopping and locking the spindle of a machine tool at a predetermined angular orientation to align the machine tool spindle key with the toolholder key to facilitate tool exchange includes a collar fastened about the spindle for co-j... | 11/02/1982 |
| 4272216 | Machine tool lubrication system The control valve for a hydrostatic bearing on a machine tool slide is opened when motion is commanded along the corresponding machine tool axis to eliminate sticking at the start of motion. The valve is closed when the velocity of motion exceeds a predet... | 06/09/1981 |
| 4238167 | Toolholder adapter A toolholder adapter has a cylindrical body, a cylindrical shank extending axially from one end of the body, a cylindrical flange extending radially from the body, a tapered socket within the body for receiving a tapered shank toolholder, and a clamping n... | 12/09/1980 |
| 4238034 | Automatic tool changer for machine tool A tool storage drum which is adapted to receive and store a plurality of toolholders is rotatably mounted on top of the upright of a horizontal machining center behind the spindle thereof. A tool changer carriage carrying a tool change arm is pivotally mo... | 12/09/1980 |
| 4221043 | Automatic tool changer for multiple spindle machine tool Two pairs of crossed tool change arms are mounted adjacent to four spindles which are rotatably mounted on a common spindlehead. Each pair of crossed tool change arms is mounted on a common shaft which is rotatable and is movable along its axis and is pos... | 09/09/1980 |
| 4219137 | Extendable spout for a container An extendable spout for a container formed of blown plastic in which the top of the container is formed of convoluted plastic which may be nested into the container. This eliminates the protruding spout when the container is being shipped to save the spac... | 08/26/1980 |
| 4211512 | Rotary table with ballscrew drive A rotary table is driven by a pair of perpendicularly disposed linear slides which are each driven by a ballscrew drive. One of the linear slides is mounted on the movable member of the other linear slide and is coupled to the rotary table by a crank stud... | 07/08/1980 |
| 4208718 | Method of optimizing the operation of a computer controlled machine tool The feed rate of a computer controlled machine tool is periodically calculated every 9.6 milliseconds to produce a horsepower equal to a target horsepower at the cutting tool during a milling operation. When the feed rate rises above a predetermined level... | 06/17/1980 |
| 4199286 | Power drawbolt with planetary drive A Drawbolt is rotatably mounted within the spindle of a machine tool to secure a toolholder to a socket in the front end of the spindle. First and second spur gears are formed on the rear end of the spindle and drawbolt, respectively, and are positioned s... | 04/22/1980 |
| 4198699 | Mass memory access method and apparatus A method and apparatus for transferring digital data between a mass memory and a random access memory. The mass memory has a plurality of memory loops, each having a plurality of memory cells, and a read/write device which either outputs data from the mem... | 04/15/1980 |
| 4190948 | Vertical spindle machine tool with tiltable spindle and tiltable automatic tool changer The spindle head of a gantry type vertical spindle machining center is slidably mounted on a spindle base which is pivotally mounted on the saddle for rocking movement about a horizontal axis to cause the axis of the spindle to tilt from the vertical. A t... | 03/04/1980 |
| 4185376 | Unmanned machining center with tool checking A numerically controlled machining center has a tool magazine, automatic tool changer, workpiece shuttle, and a workpiece magazine which holds enough workpieces for operation by the machining center for an entire shift of approximately eight hours. The nu... | 01/29/1980 |
| 4162935 | Papier-mache coffin and method of making it A coffin for a human being molded of papier-mache. The coffin is formed with ribs that provide strength to the structure and at the same time have a decorative effect. The improved method of forming the coffin includes drawing paper pulp onto the molds wh... | 07/31/1979 |
| 4135848 | Toolholder clamp for machine tools A pair of gripper jaws are pivotally mounted on a machine tool spindle within a central bore that opens into the toolholder socket on the outer end of the spindle. The gripper jaws have serrated outer ends that extend into the toolholder socket in positio... | 01/23/1979 |
| 4133423 | Shuttle system for machine tool A pair of substantially identical shuttle tables are mounted on the bed of a vertical spindle machine tool on opposite sides of the worktable thereof. A first pallet is mounted on the worktable and a second pallet is mounted on one of the shuttle tables. ... | 01/09/1979 |
| 4120030 | Computer software security system The data address portions of a set of computer instructions are scrambled in accordance with a predetermined cipher key before the instructions are loaded into the instruction memory. The instructions with the scrambled data address portions are then load... | 10/10/1978 |
| 4118871 | Binary inspection probe for numerically controlled machine tools An inspection probe is mounted in the spindle of a numerically controlled machine tool and is moved toward a workpiece therein by the numerical controls until it makes contact with the workpiece. Contact with the workpiece is indicated by change in the ou... | 10/10/1978 |
| 4109309 | Method and apparatus for remote display of analog signals occurring in computer controlled machine tools An analog signal which occurs in a computer controlled machine tool is converted to digital form at the machine tool site and is stored in a memory portion of the machine tool computer. The digitized analog signal is subsequently read out of the memory an... | 08/22/1978 |
| 4090287 | Workpiece changer mechanism for a machine tool A machine tool has a worktable slidably mounted on a bed for movement along a horizontal X axis opposite a spindle which is journalled for rotation about a horizontal Z axis perpendicular to the X axis, the spindle being slidably mounted on the bed for mo... | 05/23/1978 |
| 4087901 | Tool change mechanism for machine tools The tool change mechanism includes a tool storage magazine having a plurality of tool storage sockets disposed in two concentric circles. A tool transfer arm is mounted within the inner circle of sockets. The transfer arm may be rotated and extended or re... | 05/09/1978 |
| 4078602 | Heat exchanger for recovering waste heat A heat exchanger for receiving heat from hot exhaust gases flowing through the flue of a furnace or boiler. The exhaust gases are directed through a heat box which contains a plurality of tubes. A blower blows room air through the tubes whenever hot gases... | 03/14/1978 |
| 4065988 | Unitary work changer for a machining center This invention relates to a greatly simplified workpiece changer mechanism in combination with a simplified tool storage and changing mechanism for a machine tool. To accomplish this, a rotatable work carrying spindle is adapted to support a workpiece for... | 01/03/1978 |
| 4034447 | Papier-mache coffin A coffin for a human being molded of papier-mache. The coffin is formed with ribs that provide strength to the structure and at the same time have a decorative effect. The improved method of forming the coffin includes drawing paper pulp onto the molds wh... | 07/12/1977 |
| 4034518 | Portable cot and table convertible into carrying case A portable cot and table which folds into a carrying case in which bedding or other equipment may be packed for travel and storage. Extensions may be added to the basic cot so that the length of the cot can be increased to accommodate the particular perso... | 07/12/1977 |
| 4034770 | Dental floss with finger loops Conventional dental floss is provided with loops at convenient intervals along its length. The person using the dental floss can insert a finger from each hand into two adjacent loops to obtain a firm grip on the dental floss while it is being used to rem... | 07/12/1977 |
| 4028599 | Method of controlling an A.C. motor In apparatus for controlling the speed and torque of a multiphase a.c. motor in accordance with digital control signals, a first regulation circuit regulates the frequency of the a.c. electrical signal applied to the motor and another regulation circuit r... | 06/07/1977 |
| 4013176 | Unitary work changer for a machining center This invention relates to a greatly simplified workpiece changer mechanism in combination with a simplified tool storage and changing mechanism for a machine tool. To accomplish this, a rotatable work carrying spindle is adapted to support a workpiece for... | 03/22/1977 |
| 4007641 | Molten metal sampler with vacuum A molten metal sampler that is provided with a chamber that can be evacuated and is adapted to hold the vacuum until it is to be placed in operation. When the sampler is contacted by the molten metal, a seal holding the vacuum will disintegrate to permit ... | 02/15/1977 |
| 3994172 | Molten metal sampler A receptacle for extracting a sample of molten metal from a furnace while the metal is in the furnace or is being poured from it. The receptacle is formed of a mineral fiber or other suitable material having high heat insulating qualities with a portion o... | 11/30/1976 |
| 3986087 | A.C. motor control apparatus and method In apparatus for controlling the speed and torque of a multiphase a.c. motor in accordance with digital control signals, a first regulation circuit regulates the frequency of the a.c. electrical signal applied to the motor and another regulation circuit r... | 10/12/1976 |
| 3986088 | A. C. motor control apparatus and method In apparatus for controlling the speed and torque of a multiphase a. c. motor in accordance with digital control signals, a first regulation circuit regulates the frequency of the a. c. electrical signal applied to the motor and another regulation circuit... | 10/12/1976 |
| 3971329 | Mooring device A device for moving a boat from a dock with the boat being moored in the water a distance from the dock so that it will not be damaged by being tossed against the dock due to waves or choppy water. The boat is moved away from and to the dock by a mooring ... | 07/27/1976 |
