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4156816 |
Optical fire-detector
The invention relates to an optical fire-detector in which a radiation-emitting means is arranged to emit a beam of radiation and which has modulator means for the modulation of the beam of...
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4088899 |
Method for controlling an automatic machine tool
An automatic punch press and monitoring system. The monitoring system includes a piezoelectric accelerometer mounted within the stationary die shoe of the punch press, and electronic circuitry...
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4087801 |
Apparatus for detecting damages of cutting tools
A detector for producing an output corresponding to the vibration of a cutting tool or a workpiece worked thereby, a signal processing circuit for obtaining the root mean square value of the output...
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4051351 |
Electronic system for monitoring pneumatic tool performance
An electronic system to monitor the performance of a pneumatic impact forming tool is disclosed. A signal is generated in real time representing the actuating pressure of the pneumatic tool....
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4023044 |
Automatic machine tool including a monitoring system
An automatic punch press and monitoring system. The monitoring system includes a piezoelectric accelerometer mounted within the stationary die shoe of the punch press, and electronic circuitry...
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4009377 |
Positioning determining method and apparatus
The method includes steps for and the apparatus includes means for determining the absolute position of a movable element mounted for movement along a path. The method includes the steps of:...
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3967261 |
Proximity sensor with simultaneously active intermixed sensor types
The invention provides an improvement over my earlier U.S. Pat. No. 3,573,783 whereby different types of sensors may be indiscriminately intermingled, intermixed or otherwise used together...
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3962694 |
Method and apparatus for monitoring an electrically actuated tool
A method and apparatus for monitoring an electrically actuated tool. The current flowing in the tool circuit is sampled and converted to an analog voltage signal that is proportional to the maximum...
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3930248 |
Impact sensing detector
An impact sensing detector for monitoring the operation of metal forming impact presses. The detector operates on an analog electric signal corresponding to the shock wave produced as the press ram...
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3911399 |
Digital incremental emitter, especially for numerical control of machine tools
A pulse emitter or resolver and a circuit connected thereto for use in numerical control systems such as for machine tools, in which the emitter supplies at least two trains of pulses shifted 90...
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3903609 |
Adjusting device for lumber planer
An adjusting device for setting knives on wood heads. A housing with arcuate shaped legs rests on the planer drum and a movable electrical contact member mounted on the housing is set to a...
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3818334 |
DETERMINING CUTTING TOOL FORCE BY MEASURING ELECTRICAL RESISTANCE OF A BEARING
The side thrust established when a cutting tool of a machine tool is moved into engagement with a work piece may be measured by measuring the resistance change which occurs across the bearings...
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3793627 |
AUTOMATIC SONIC DETECTION OF CHIPPED CUTTING TOOLS
A cutting tool wear signal is obtained in known manner by sensing the sonic vibrations generated by the cutting action and extracting the high frequencies indicative of cutting tool wear. A chipped...
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3747010 |
POWER SUPPLY FOR OSCILLATOR CIRCUIT OF CONTACTLESS PROXIMITY INDICATOR
A contactless proximity sensor includes an oscillator which generates an output damped by the presence of a metal part whose approach is to be detected. The operating voltage for the oscillator is...
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3747085 |
TOOL MONITORING APPARATUS
Apparatus for monitoring the condition of a tool and for detecting the improper operation thereof. The apparatus utilizes a magnetic circuit formed of a first low reluctance portion and a second...
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3694637 |
METHOD AND APPARATUS FOR DETECTING TOOL WEAR
A method and apparatus for monitoring tool wear as a function of change in a power-frequency distribution obtained by Fourier analysis of a vibrational characteristic of the tool during use....
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3675229 |
SENSING CONTROL FOR A ROAD BUILDING MACHINE
A sensing device and system for controlling the horizontal and/or vertical position of a steerable, vertically adjustable road building machine. The device including a movable dial with exposed...
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3656139 |
MALFUNCTION DETECTOR
A malfunction detector for automatically monitoring and controlling operation of a cyclically operating machine performing one or more operations on work pieces at one or more stations. The...
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3646542 |
MONITOR SYSTEMS
A monitor system for detecting bent, broken, missing or otherwise mutilated operating elements in a cyclically operable machine (e.g., the knitting needles in a rotary knitting machine) comprising...
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3636543 |
SAFETY LIMIT FEELER FOR CONTACTLESS CONTROL
A control arrangement in which a pair of magnetically sensitive control elements are adapted for simultaneous actuation by a magnetic actuating member moving in proximity to but not physically...
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3627437 |
TOOLHOLDER DETECTION SYSTEM
A "no tool," "broken tool" or "improperly set tool" detection device for use with taps, drills, reamers, boring tools, counter bores and milling cutters which include a toolholder having assembled...
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3596544 |
MACHINE TOOL CUTTING INDICATION AND CONTROL
Circuit means are provided for sensing the no load power into an electrical motor for driving machine tool and storing an electrical signal representative thereof. Power input in response to...
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3585624 |
FEELER-CONTROLLED STOP MOTION DEVICE
A thyristor circuit is assembled in a small tubular casing which is mounted on a knitting machine. A feeler projects from the casing and contacts an improperly placed latch of a needle to produce a...
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3575518 |
TOOL PROBE
A detector for sensing the condition of a tool member to control the operation of a machine. A probe member operated by a motor is connected to a first electrical relay. When the probe member...
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3556182 |
ELECTRIC PENCIL SHARPENER
An electric pencil sharpener comprises a cylindrical cutter and a rotary shaft having a pencil-feeding hole. A slider is disposed at the rear inner portion of the hole and connected with a rod...
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3550959 |
HARDNESS SENSING ROTARY CUTTERS FOR MINERAL MINING MACHINES
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3550107 |
MACHINING STABILITY DETECTOR
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3476013 |
CONTACT SENSING SYSTEM FOR MACHINE TOOL
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3381550 |
Apparatus for a tool failure detection system
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3350617 |
Positioning device for use on machine tools
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3348234 |
Production line operation monitor and recorder
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3339434 |
Apparatus for monitoring automatic machines
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3310796 |
Drill indicator
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3270329 |
Overload detector for automatic equipment
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3257652 |
Operation monitor
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3233231 |
Machine tool
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3164819 |
Instrument for indicating the adjusted position of a sliding head in a machine tool
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3133457 |
Multiple tool condition detecting system
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3103654 |
Mechanism for indicating the relative mechanical load on a drive motor
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3030616 |
Circuit failure indicator
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3017618 |
Device for removing and detecting foreign matter from a surface
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3013258 |
Tool control unit
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3001421 |
Coil mounting for electronic tool detector
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2998560 |
Machine-tool control servosystem
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2983909 |
Algebraic scale counter
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2963627 |
Electronic guard
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2963695 |
Machine control unit
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2932134 |
Machine tool gaging and control
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2844862 |
Machine tool and method of programing the operation thereof
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2824360 |
Machine tool control system
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