Matches 1 - 50 out of 99 1 2 >


Match Document Document Title
7856333 Method for commissioning actuators  
The disclosure relates to a method for commissioning pneumatically operated actuators that are controlled by a positioner. To determine the drive type, a constant flow of pneumatic fluid is...
4593586 Tracer control circuit for machine tools  
The piston rod of a longitudinal feed cylinder of a tracer controlled lathe is connected with the lathe carriage by means of an operative connection consisting of another hydraulic cylinder or a...
4285546 Tunnel profile control  
An apparatus and method for controlling the profile of an aperture cut by a cutting head capable of traversing movement in two directions at right angles to each other, e.g. the cutting head of a...
4265576 Milling machine system  
A multiple-mode hydraulic tracer valve which is convertible from mode to mode by the use of a shiftable stylus and a transmission whose locus can be shifted relative to the spool valves of the...
3921665 Limit valve with overtravel detector  
A fluid limit valve, comprising: a valve body having aligned valve bore and tem counterbore; transverse input and output fluid channels opening into the valve bore; a valve member slidable in the...
3891145 Hydraulic tracking valve for templates in machine tools or the like  
A tracking valve which can be mounted on a tool-supporting carriage in a machine tool and whose main valve member is a spool which is movable axially in a valve body to thereby start a hydraulic...
3874042 Clamp for thin walled tubing  
A process is disclosed which is useful for sealing a thin walled, flexible, plastic tube such as dialysis membrane tubing. The process utilizes a clamp which has an elongated base member having at...
3820439 TRACER CONTROL CIRCUIT FOR MACHINE TOOLS  
3807685 HYDRAULIC COPYING APPARATUS  
This invention provides hydraulic copying apparatus for application to machine tools such as milling machines, in which the axial and oscillatory movements of a stylus control three copying...
3770238 TRACER VALVES FOR COPYING MACHINES  
A tracer valve has a stylus that is automatically biased to contact a template, despite changes in curvature of the template. The stylus has or is connected to a pressure-bearing surface. A...
3731563 HYDROSTATIC SPOOL BEARING FOR USE IN TRACER ASSEMBLY OF PATTERN CONTROLLED MACHINE  
A spool bearing for cartridge spindles and the like has a hollow tubular barrel with a central fluid inlet and a spool shaft mounted in the hollow barrel for rotation. The spool shaft has a...
3724328 PLATEAU MILLING SCHEME FOR HYDRAULIC TRACERS  
An apparatus for use with an hydraulic tracing system on a machine tool having a slide controlled by the deflection of a tracing stylus wherein there is provided a means for limiting the...
3697041 HYDRAULIC CONTROL VALVE HAVING LATERALLY AND ROTATIONALLY DISPLACEABLE VALVE PLATE  
A hydraulic control valve for controlling copying-milling machines and the like. The movements of the associated machine are controlled by moving a valve plate laterally in one direction or...
3697040 TOOL OFFSET MEANS FOR TRACER MECHANISMS  
A tracer valve for controlling a machine tool for duplicating on a workpiece the contour of a template or pattern. For a given tool setup, the offset of the stylus from the tracer valve sensor is...
3675890 BOOSTER SERVO CONTROLLED VALVE CONTROL MECHANISM  
A valve control mechanism is provided which is particularly well suited to be used in conjunction with an hydraulically operated machine tool, such as a milling machine, lathe, or similar machine....
3620499 AUTOMATIC TRACER VALVE  
An automatic tracer valve having three mutually perpendicular control axes with a four-way spool valve on each of them. The spool of the first of the spool valves mounts a stylus for axial...
3617024 COPY MILLING DEVICE  
Apparatus for tracing the contour of a shaped member including a platform adapted to mount a shaped member and a feeler mounted on a carrying head and adapted to engage the shaped member, means...
3596871 TRACING VALVE  
The hollow body of a fluid pressure tracing valve contains a pair of longitudinally movable, hollow poppet valves urged apart longitudinally by a spring. A pair of stem sections extend slidably...
3595519 HYDRAULIC TRACER MECHANISM ADAPTED FOR USE WITH MACHINE TOOLS IN GENERAL  
A hydraulic tracer mechanism for milling cutters, wherein two control units, driven by the stylus or tracer point, are so arranged that the longitudinal axes of said units are parallel to each...
3588032 HYDRAULIC MASTER  
3588033 TRACER CONTROL MECHANISM  
3555941 TRACER CONTROL CIRCUIT WITH SIZING MEANS  
3536291 SPOOL VALVE  
3529801 FEED RATE CONTROL FOR AUTOMATIC TRACER MECHANISM  
3523672 TRACING VALVE  
3489388 HYDRAULIC CONTROL VALVE FOR COPYING-MILLING MACHINES  
3481577 STYLUS STEERING SYSTEM FOR A TRACER VALVE  
3477685 PATTERN TRACING INSTRUMENT  
3459401 DITHERER AND TRACER VALVE ASSEMBLY  
3459402 TRACER VALVE ASSEMBLY  
3399600 Apparatus for tracing the contour of a shaped member  
3395281 Contour tracing apparatus including photoelectric metans for angularly positioning the tracing stylus  
3390859 Tracer control valve assembly  
3372619 Tracer valve control units  
3370613 Hydraulically-centered spool valve  
3330293 Pattern-controlled machine tools  
3309964 Machine tool  
3286599 Tracing mechanism for amplified flow  
3270619 Control system  
3235222 Tracer equipment  
3222998 Two dimensional hydraulic tracing system  
3194535 Valve for pattern controlled machine  
3186425 Convertible mode tracer valve  
3174403 Hydraulic servo control mechanism  
3161095 Plural slide, tracer controlled, machine tool attachment  
3148594 Hydraulic control mechanism for three-dimensional tracers  
3139002 Tracer system and mechanism therefor for profile or scanning operations  
3136127 Signal intensifier  
3114295 Copying machine tool  
3084899 Manual three direction tracer  

Matches 1 - 50 out of 99 1 2 >