Abstract: A multi-head electro-discharging machine, in which each head member has an independent transmission assembly; the head member can move in X-axis, Y-axis and Z-axis directions by a guide screw rod; every head member can be adjusted independently for operation without intervening the others; every head member may be mounted with an electrode connector, and two head members can be operated simultaneously in a crossing manner; a plurality of head members are mounted along the rear side of a supporting frame of the machine, and one or more than one head members may be mounted on both ends of the supporting frame for further multi-processing operation.

Abstract: An apparatus and method for forming a hole in webbing constructed of thermoplastic material utilizes a clamping assembly for holding the webbing in a stationary condition for working thereon, a rotatable drilling tool having an elongated shank with a leading end and a flute spiraling along the shank from the leading end, and a burner for heating a portion of the drilling tool shank adjacent the leading end. The drilling tool is supported adjacent the clamping assembly for rotation of the tool about a rotation axis which corresponds with the longitudinal axis of the shank and for movement of the leading end of the tool along a linear path corresponding with the rotation axis into and out of the webbing held by the clamping assembly.

Abstract: Apparatus for machining a valve seat and valve stem guide all from the valve seat side of a head or block. The valve seat is machined in one pass by a single point cutting tool which is moved on two axes and, the valve guide bore is machined by a reamer. The movements of the single point cutting tool and reamer are numerically controlled.

Abstract: A C-shaped yoke (42) extends over the top of a fixture (10) containing a part to be assembled. A first support frame (70) is supported on the fixture (10) and moves longitudinally therealong. A second support frame (94) is secured to the yoke (42) and is mounted on the first support frame (70) for vertical movement relative thereto. One linear actuator (128) connects one portion (122) of the second support frame (94) to the remainder thereof so as to provide a capability of yaw movement for the yoke (42), while another linear actuator (200) connects the second support frame (94) with the yoke (42) in such a manner as to provide a capability of roll movement for the yoke (42). A pair of actuator systems (54,56) are mounted on the lower ends of the yoke (42) for movement toward and away from each other. The actuator systems (54,56) contain the automated tools such as drill, riveting assemblies, etc., for performing the desired mechanical operations.

Abstract: A drilling machine for planar face and/or end face drilling on panel-type workpieces or panel blanks which offers advantageous machining possibilities is described. Associated with the drilling machine on its operating side opposite the workpiece advancing device are a workpiece aligning table with a side stop, at either side, and a clamping device for fixing workpieces or panel blanks on the workpiece supporting table. It is, for example, thereby possible for two workpieces which belong to one piece of furniture, and in which assembly bores are to be made in mirror-image relationship, to be jointly placed on one of the workpiece aligning tables, in each case, aligned at their respective side stop and then clamped in the workpiece slider of the workpiece advancing device. The idle times of the machine can thus be reduced to a minimum.

Abstract: A boring machine provides a pair of motor-driven drills mounted to a template so that the drill chucks are aligned in parallel, side-by-side arrangement in a housing beneath the template. A guide mechanism, including a front plate with a pair of guide holes, is also mounted beneath the template, with a pair of spring loaded guide rods extending from the front plate to the housing. A pair of stops are positioned between the front plate and the housing providing a limit to travel of the front plate.

Abstract: A lightweight machine for drilling a pattern of fastening holes in panels of installed roofing insulation is movably supported on rollers that rest on the panels without substantially deforming them. The machine is maneuvered by a handle, and vertical movement of the handle lowers a template carrying a gang of drills. The drills proceed through a central opening in the frame of the machine to engage the panels in the sub-roof structure on which they have been installed.

Abstract: Valve seats are machined at the end of an axially deep, narrow cavity of a workpiece having an axially clampable surface within the cavity adjacent one or more valve seats. The method comprehends: (a) supporting a rotary driven spindle assembly of sufficient length to extend through the axial extent of the cavity and reach the valve seat, the spindle carrying a cutting tool at its extremity, the support being in a nonrotatable housing effective to fit closely to the interior of the cavity (within a tolerance of 0.

Abstract: A tooling assembly (10) is disclosed having a plurality of tool holders (18, 20) for independently driven cutting tools (14, 16), the tooling assembly adapted for automatic insertion and removal from a spindle assembly (12). The plurality of cutting tools (14, 16) are disclosed as arranged to be able to simultaneously machine concentric round features on a workpiece (8), such as a valve stem guide bore (9) and valve seat (7). The tooling assembly (10) includes inner and outer tool bodies (30, 24) rotatably mounted together, each carrying a tool holder (20, 18), the tool bodies (30, 24) rotated at different speeds. A coupling arrangement for the tooling assembly includes an outer draw bar (82) moveable to couple the tooling assembly (10) to the spindle assembly (12), and an inner draw bar (84) separately coupled to moveable element (20) to enable independent axial advance of one of the cutting tools (14) by axial movement of the inner draw bar (84) and coupled moveable element (20).

Abstract: A registration system for flexible printing plates includes a drill apparatus and a registration table which, used in conjunction, makes registration and mounting of flexible printing plates on plate cylinders relatively quick and easy. The drill apparatus includes a table with spaced, opposed drills slideably mounted on tracks in the table to accommodate different plate widths. The registration table includes a guide against which the plate cylinder is positioned and a slideably mounted plate mounting bar to which the flexible plate is pinned. The plate mounting bar is swept parallelly toward the cylinder guide and the plate rolled on to the cylinder, and adhered by double sided sticky tape. The pins affixing the plate to the mounting bar are removed and the remaining plate material rolled on to the cylinder. The process ensures that a selected longitudinal axis of the plate will be in registration, or aligned, with the longitudinal axis of the cylinder.

Abstract: A tool coupling arrangement is disclosed for a tooling assembly (10) adapted for automatic tool insertion into a spindle assembly (12), the tooling assembly (10) having an axially moveable element (20) for causing movement independently of the spindle assembly (12). In the particular disclosed applications, a pair of cutting tools (14, 16) are provided to simultaneously machine concentric features on a workpiece (8), disclosed as a valve stem guide bore (9) and valve seat (7) of an engine cylinder head. A first coupling arrangement secures this tooling assembly (10) after it is inserted within the spindle assembly (12), while a second coupling arrangement automatically couples the separately moveable element (20) to an inner draw bar (84) of the spindle assembly (12).

Abstract: A gang drill head having a row of drills spaced according to repeated patterns of holes in a tubular member such as a suction roll in a paper-making machine which are clogged and are to be cleared by drilling the same, the drill head being guided for longitudinal movement along a guide member positioned upon the roll for circumferential incremental movement to effect radial movements of the rotating drills for the full circumference of the roll and the head including longitudinal adjustment of individual drill supports in accordance with the spacings of the repeated patterns of holes in the roll. The individual drill chucks are rotated simultaneously and manually controlled linkage causes raising and lowering of the drill head by a fluid-operated unit.

Abstract: Disclosed is a structure for installing a multispindle attachment on a drilling machine or the like. An upper gear coupling member is secured at the lower end of a quill housing a main rotary spindle for a drilling machine, etc. A clamp member is rotatably provided on the gear coupling member. A lower gear coupling member for engaging with the upper gear coupling member is secured on the upper surface of the multispindle attachment installed at the lower end of the quill. Both of these gear coupling members are tightened and secured by means of the clamp member while both of the upper and lower gear coupling members are engaged with each other.

Abstract: A quick release tool holder system for machine tools utilizing a plurality of rotatable tool spindles spaced about an axis located on a tool head. Each tool spindle utilizes an axially movable sleeve for operating a detent locking a standard tool adapter within the spindle socket, and an actuator plate reciprocable by an expansible chamber motor simultaneously displaces the spindle sleeves in a tool adapter releasing direction to facilitate tool replacement.

Abstract: An apparatus for transferring a pallet with a plurality of workpieces into a gang machine and locating and clamping the workpieces while being machined. The workpieces are received and loosely retained on the pallet while being transferred and each workpiece is located and clamped in the machine independently of both the other workpieces and the pallet. Each workpiece is accurately positioned by locators carried by the machine and at least in part held while being machined by clamps carried by the pallet. The workpieces are moved into engagement with the locators by a lift which moves the pallet toward the locators.

Abstract: A rotating toolhead on a preferably longitudinally movable headstock of a machine tool is disclosed. The machine tool includes at least one head carriage radially movable on the toolhead with at least one toolholder on the carriage. A motor for advancing the head carriage is operatively connectable to a drive transmission, and an axially movable driver is associated with the drive transmission and engages a ring arranged rotation-fast and longitudinally movable on a main spindle. An angular drive transfer engages with inclined planar teeth in corresponding teeth of the head carriage for movement thereof. Several groups of toolheads are also disclosed which can be arranged to form a machining line.

Abstract: A piece of wood is prepared for impregnation by causing it in steps to be perforated by a plurality of needles which are moved back and forth with the workpiece, and either rotate individually or are subject to additional oscillatory or impact-producing axial movement.

Abstract: An apparatus for working a elongated angle-iron workpiece having a pair of nonparallel flanges at least one of which is to be drilled has a transport unit for displacing the workpiece longitudinally through a working station and a support in the station for holding the workpiece with the one flange forming an acute angle with the horizontal. A drilling unit including a drilling tool can move horizontally in the station transverse to the workpiece and transverse to the workpiece and at the acute angle to the horizontal perpendicularly through the one flange. To obtain a given displacement along the workpiece flange, the carriage supporting the drill unit is moved horizontally through a horizontal distance equal to the desired displacement times the secant of the angle that the flange forms with the horizontal.

Abstract: The present invention is directed to a gang head for a replaceable gang head type machine tool. The machine tool includes a base, a jig table, a driving member mounted on the base and movable to an advance and retract with respect to the jig table, and an annular rail surrounding the driving member. The annular rail has a rear stationary rail and a movable front rail, the movable rail movable to advance and retract with respect to the jig table along the same direction as the driving member. The gang head comprises a base frame mounted on the movable rail, a working unit mounted on the base frame, wherein the working unit is inclined at an angle other than a right angle, with respect to the direction of advance and retraction of the movable rail, an oil pressure pump, and an oil pressure operated cylinder. The oil pressure cylinder being operatively coupled to the working unit for advancing and retracting the working unit with respect to the jig table.

Abstract: Chamfering apparatus for simultaneously chamfering the I.D. and O.D. of tubular members including an internal cutter for chamfering the I.D. and an external cutter for simultaneously chamfering the O.D., the internal and external cutters being mounted self-adjustably to permit them to simultaneously engage the I.D. and O.D. of tubular members of different I.D.'s and O.D.'s up to a predetermined maximum I.D. and O.D. and to minimize the net torque imparted to the tubular members by such simultaneous chamfering.

Abstract: A device is disclosed for cutting two parallel partially intersecting bores, such as the bores used in a screw type compressor housing, comprising, a device housing, a pair of spindles rotatably mounted to the housing and a tool holder connected near the end of each spindle. The spindles are engaged with each other through gears so that rotation of one spindle in one direction causes rotation of the other spindle in opposite direction. A drive shaft is connected to one of the spindles for rotating the pair of spindles simultaneously. Each tool holder is elongated along a major tool holder axis thereof which is substantially transverse to an axis of its associated spindle. The major axes of the two tool holders are always substantially perpendicular to each other so that free rotation of the two spindles, in opposite directions is possible.

Abstract: A gang tool assembly for drilling a precise pattern of holes in a workpiece or otherwise cutting surfaces and the like on such workpiece and including a mounting panel of rigid sheet material having a pattern of holes formed therein to receive supports for powered tool heads to detachably support the same to form a gang pattern of either drills or cutters for simultaneously drilling a pattern of holes in a workpiece or forming a contoured surface thereon.

Abstract: Disclosed is an attachment member for a multiple-spindle head, which is used for attaching the multiple-spindle head to a quill of a drilling machine, a tapping machine or the like. This attachment member is attached to the quill through a cylinder having an attachment flange, and the attachment member includes a driving gear which is arranged so that when the attachment member is attached to the quill, the gear falls in engagement with a spindle in the quill and it is rotated by the spindle. The attachment member is used in the state where it is built in the multiple-spindle head, and in this state, gears for rotating drills, taps or the like attached to the multiple-spindle head are engaged with the driving gear through intermediate gears. At the time of exchange of the multiple-spindle head, the head is dismounted from the cylinder together with the attachment member, and another multiple-spindle head with which another attachment member has been combined in advance is attached to the cylinder instead.

Abstract: A drilling machine for working on longer workpieces, such as steel profiles having a fixed, non-variable frame. The machine includes a horizontal machine underpart arranged transversely to the longitudinal axis of the workpiece, two vertical side parts attached to the underpart ends and a horizontal upper beam attached on the side parts, and three drilling units each having a drilling spindle, a gear and a motor. The drilling units are shiftable in a plane parallel to the frame. The first drilling unit has a horizontal drilling spindle and is attached to a side part to the side of the workpiece; the second drilling unit has a second spindle arranged horizontally to the first drilling unit and on the opposing side of the workpiece; and, the third drilling unit has a vertical spindle and is attached to the upper beam. The second drilling unit has its horizontal drilling spindle on a horizontally driven carriage provided with lower wheels and upper wheels.

Abstract: This invention relates to an improvement in the process for improving the impregnability of wood which is pierced on its surface prior to an impregnation procedure by means of solid, circular needles which are guided essentially perpendicularly to said wood surface, without thereby causing chipping or splintering, the improvement comprising using sharp, circular needles with smooth surfaces, rotating about their central axes, and at an essentially constant ratio of the peripheral speed (u) of these needles to their speed of advance (v) with which they drive into the wood.

Abstract: A novel burnishing apparatus and method for burnishing the terminal posts of lead-acid batteries is disclosed. The burnishing brushes are adjustably mounted to service batteries with various terminal posts spacings. After indexing and alignment, each battery to be processed is located and clamped by a battery processing head, after which the burnishing carriage which is slidably mounted thereon is moved relatively towards and away from the battery terminals to bring the burnishing brushes into contact with the battery terminals to effect the burnishing operation. The direction of rotation of the burnishing brushes is reversed when the burnishing brush carriage begins to withdraw from the battery terminals.

Abstract: There is disclosed an apparatus for drilling holes in the web and a flange of an H-beam on opposite sides of the web, which comprises a framework having a first, fixedly mounted section and a second section which is mounted on the first section for guided vertical movement with respect to it. Vertical drills for drilling the holes in the webs and horizontal drills for drilling holes in the flange are mounted on the second section of the framework for vertical movement together into positions to permit the beam to be moved through the framework. A means is mounted on the second framework section to monitor undulations in the web so as to maintain the desired position of the horizontal drills relative to the web.

Abstract: A drilling apparatus for the preparation of bone cavities includes a plurality of drills which are simultaneously driven in opposite direction with the cutting surfaces of each drill overlapping the cutting surfaces of at least one other drill to provide intersecting bone cavities. The drills may be driven by gearing located within the drill head or by gearing located in an attachment suitable for connection to a conventional drill head having a single output drive. The drills may be disposed along a straight or curved line or may be disposed in a triangular relationship with the axis of rotation of one of the drills being transversely movable relative to the axis of rotation of another drill.

Abstract: An apparatus for adjusting the vertical position of drills in a multiple spindle drilling machine comprising drills attached in upper and lower two lateral rows to a gear box of the multiple spindle drilling machine, said two groups of the drills being arranged so that the drills of the respective groups can be simultaneously moved in the vertical direction, a motor for driving and rotating the two groups of the drills, a moving device disposed to connect said two groups of the drills so that they are moved in the vertical direction according to the height of drilling positions of a material to be processed, and a positioning device attached to the gear box to regulate the vertical movement of the drills of the respective groups within a certain range and set the vertical position thereof.

Abstract: An apparatus and method for taking a plural number of test samples simultaneously from a frozen meat block packed in a container utilizes a support frame which mounts a fixed table and container clamping device and which supports in sliding relation thereon a movable carriage and multiple drill bit sampling unit. A drive unit, once energized, moves the carriage and multiple drill sampling unit inward or outward by means of a cylinder/piston arrangement connected to the frame at one end and to the carriage at the other. A second motor drive unit drives the multiple drill bits. Means is provided for catching and directing the extracted meat samples to a container situated beneath the sampling drill bits and which moves inward and outward with the carriage as it moves on the support frame.

Abstract: A multi-spindle drill head for use with a machine drive, comprises a main assembly, comprising a first housing member having at least one main spindle which is rotatably supported therein and which is adapted to be connected to the machine drive. A main gear is affixed to the main spindle for rotation therewith and it drives one or more secondary gears on secondary spindles. Each secondary spindle contains a drive pinion which becomes oriented in meshing engagement with a connecting gear which is rotatably mounted on a second housing part which is adapted to be fastened to the first housing part. The connecting gear is rotatably mounted in a position to drive a pinion of a drill spindle. The main spindle itself may contain a lower portion with a drive pinion which may be engaged with a connecting gear to drive the pinion of the drill spindle.

Abstract: A drilling head system for use in simultaneous drilling of a plurality of holes in an I-beam web. The system is characterized by its motor driven control features which permit vertical and horizontal adjustment of a drilling platform and thus the individual drilling spindles with respect to an I-beam supported securely beneath the drilling head.

Abstract: The present invention is useful in establishing a plurality of tool elements in a desired configuration in relation to a workpiece surface. A typical device of the invention has a guide member having a flexible section containing tool element guide means, means for deflecting the flexible section to position the guide means in the desired configuration and means for establishing a cooperative relationship between the desired configuration of guide means and the workpiece surface. The invention is particularly applicable to positioning a plurality of drilling elements in a configuration corresponding and in precise relationship to the curvature of the edge of a gas turbine engine blade or vane.

Abstract: The invention relates to a threading tool for internal threads with a cutter holder which is displaceably mounted on a cutter holder carrier shaft co-axial to the main axis of the rotatable tool which coincides with the thread axis during the cutting process, whereby the said cutter holder shaft is moved forwards and backwards periodically with the forward feed corresponding to the thread pitch in the direction of the main axis in the thread chasing operation by a cam control with a camshaft co-axial to the cutter holder shaft and rotating with a differential speed relative thereto, whereby through a corresponding radial displacement of the cutter holder the cutter is raised during return travel and in the thread chasing operation is set to engage lower and lower from one thread chasing operation to the next up to the final cutting depth.

Abstract: A manually operable boring apparatus powered by compressed air drills precisely located pilot holes in cabinet doors to assist in the installation of apertured cabinet hinges. Upon the command of an operator, the hole boring apparatus causes a drill assembly containing three rapidly rotating drill bits to extend one-quarter inch into the rear face of a cabinet door. The boring apparatus further includes a bracket and retractable indexing pins which locate the drill bits a predetermined distance from the end of the cabinet door.

Abstract: Apparatus for laminating crossties comprising means for conveying a plurality of railroad crossties in substantially mutually parallel relationship onto a lifting mechanism, said lifting mechanism being operable for simultaneously moving a plurality of the crossties into a clamping apparatus wherein the crossties are securely clamped in side-by-side relation, drill means operable for drilling transversely extending bore means through said plurality of crossties, means for inserting dowel pine through said bores for securing the plurality of crossties together in a laminated arrangement and means for removing the laminated crossties from the clamped position and from the apparatus.

Abstract: A multiple spindle drilling machine can simultaneously drill a plurality of bores for inserting the rivets or the bolts through the web and a pair of flanges of wide flange beams which are used in building and construction by a first, second and third drilling assembly. A supporting device mounted on the upper side of a machine table which stops the wide flange beam is fed by a feeding device thereon and supports it at a predetermined drilling position. The first drilling assembly is mounted so as to be movable toward the vertical direction from the upper position of the machine table and has multi-drills for drilling a plurality of bores through the web of the wide flange beam. The second and third drilling assemblies are mounted so as to be movable toward the horizontal direction from both of the side positions of the machine table and have multi-drills for drilling a plurality of bores through both flanges of the wide flange beam.

Abstract: A machining apparatus to locate a plurality of the depressions within the periphery of a spider in a vehicle wheel assembly, the depressions being divided into a plurality of groups of depressions, the spider being fixedly positioned by its mounting holes upon an indexing plate, a plurality of separate drilling units to form the depressions, each drilling unit to form a particular depression within each depression group.