Abstract: In a dual belt press, the press belts are supported at each end by a first chain. The first chain includes spaced links through which a stud projects. A sleeve is mounted on each stud between the spaced links. The outer circumferences of adjacently disposed sleeves abut one another to prevent lateral displacement of the studs and rolls. A second chain is connected to the studs and is adapted to be driven in order to displace the rolls along a press zone of the press.

Abstract: In the production of a glass mat-reinforced thermoplastic, a mat and resin are pressed and heated in a compression zone of a dual belt press. The resin is metered onto the upper flights of the two belts of the press in powder form, and is heated at least to the extent that it adheres as a layer to those flights so as to be conveyed without difficulty into the compression zone. The glass fiber mat itself can be preimpregnated with resin prior to entering the press.

Abstract: A bent tube is formed by passing a straight tube through a diameter-reducing die such that the central axis of the die forms an acute angle with the direction by which the tube is pulled through the die. The acute angle can be kept constant in order to produce a tube having a constant radius of curvature. Alternatively, the acute angle can be changed during the drawing process to form the tube with a radius of curvature which varies along the tube length.

Abstract: A dual belt press comprises opposed movable belts and a chamber disposed adjacent one of said belts for containing a medium to be applied to such belt. The chamber is defined by a frame. A seal for the medium is carried by the frame. The frame includes a holder attached to said frame and defining a serpentine groove. The holder comprises separate ledges disposed on opposite sides of the groove and defining the groove. Each ledge comprises a plurality of pieces abutting each other in the direction of belt travel. Pieces on opposite sides of said groove are mutually separable in a direction transverse to the direction of belt travel. A sealing strip is mounted in the groove.

Abstract: Apparatus for the production of multilayer laminated plates, in particular circuit boards for electrotechnical applications, wherein webs of glass fiber roving fabric are impregnated with a synthetic resin binder, and subsequently pressed in a dual belt press. Upstream of the press, a heating table comprising a plurality of heating panels is provided. The webs of material, coated with the binder, are combined and impregnated in the heating zone. In the heating zone the binder used may be maintained exactly at the processing temperature. Rapid hardening binders may be used so that the transition of the binder from its liquid to its solid state takes place in the press even during short press durations.

Abstract: A single-sided cutting insert preferably for thread chasing, the lower face of which comprises three support surfaces inclining towards the center of the lower face and a recess separating them. The support surfaces are projecting partly around the recess and therefore the cutting insert at insertion against a base surface of a cutting insert site in a tool shank abuts only against the planar base surface in three separated points.

Abstract: A multiple condition sensing and multiple alarm generating monitor for an automated machine tool which is repetitively stepped through a predetermined sequence of operations comprises a sensor for sensing each of a plurality of tool operated conditions; a memory for storing, for each sensed condition and for each tool operation or predetermined block of tool operations, alarm limit data defining a set of first alarm limits; a memory addresser for sequentially accessing the memory in response to predetermined control signals used to control operation of the machine tool such that the alarm limit data accessed is changed in synchronization with operation of the machine tool; and a comparator for comparing the output of each sensor with the currently accessed corresponding alarm limit data.

Abstract: A saw has a plurality of generally V-shaped teeth formed by punching. The sides of each tooth define cutting edges. A bevel extends along each cutting edge. The bevels are formed by punching with a tool having a surface oriented non-perpendicular to the saw blank. Burrs formed during the punching step are not removed, but are allowed to remain to enhance the cutting ability of the teeth.

Abstract: A mineral cutter pick is mounted in a holder. Passages in the pick and the holder supply fluid to an opening near the pick cutting edge. Sleeves are provided in the adjacent ends of the passages in the pick and holder and receive the opposite ends of a tubular connector. At least one of the sealing sleeves has its outer face exposed to the fluid supply pressure so that sealing with the associated end of the connector is assisted by the pressure force. The ends of the connector are formed as spherical enlargements to allow free pivoting in their sleeves and at least one end is axially displaceable in its sleeve while maintaining sealing contact.

Abstract: A flowable substance is extruded from two coaxial telescoping cylindrical containers of which the outer is provided with openings on its periphery and is rotatable about the inner container. The substance is fed to the inner container and exits via a row of openings therein. As the outer container rotates, the inner and outer openings radially coincide cyclically whereby the substance falls in the form of drops onto a belt and solidifies. The row of openings of the inner container is provided in a nozzle bar which is removably attached to the periphery of a body part of the inner container.

Abstract: An apparatus for the production of granules from flowable media comprises a cylindrical vessel rotatable about a horizontal axle and being provided with circumferentially spaced orifices through which the medium emerges in the form of droplets. The drops fall onto a cooling conveyor in order to solidify thereon. A collector wall is situated within the vessel and oriented obliquely relative to the horizontal. The medium is dropped onto the collector plate and flows downwardly onto the internal surface of the vessel. The medium falls onto the internal surface ahead of a baffle which presses against the internal surface.

Abstract: A cutter pick assembly comprises a point attack cutter pick rotatably mounted in a pick box through a sleeve in a bore. In front of the sleeve a hardened metal thrust and seal ring is mounted surrounding the forward end of the pick shank. The ring has a front face which engages in a recess in a shoulder of the pick and the ring both supports the pick against rearwardly directed cutting forces and provides a sufficiently close fit with the pick and the pick box bore to limit passage into the bore of foreign matter that may interfere with rotation of the pick in use. The thrust ring is retained axially in the bore by a spring clip and a further spring clip holds the pick axially in the sleeve, the latter being trapped in the bore by the thrust ring.

Abstract: A saw has a plurality of generally V-shaped teeth formed by punching. The sides of each tooth define cutting edges. A bevel extends along each cutting edge. The bevels are formed by punching with a tool having a surface oriented non-perpendicular to the saw blank. Burrs formed during the punching step are not removed, but are allowed to remain to enhance the cutting ability of the teeth.

Abstract: An apparatus produces granules from two-phase mixtures wherein an initial substance is enriched with crystal nuclei in a temperature controlled precrystallizer and the resultant precrystallized melt is fully crystallized on a cooling surface. A droplet former is disposed over the cooling surface and includes inner and outer telescoping tubes. The inner tube communicates downstream with the precrystallizer and has a plurality of outlet orifices for conducting the precrystallized melt outwardly therethrough. The outer and inner tubes are arranged for relative rotation. The outer tube has a plurality of discharge orifices which are intermittently alignable with the outlet apertures in response to relative rotation between the tubes for discharging drops of precrystallized mass onto the cooling surface.

Abstract: The present invention relates to a thread cutting insert (10) for use with an indexable tool. The insert (10) is a triangular, flat wafer of cutting material comprising three countersunk cutting corners (11), each having a chamfered part (12) provided with a cutting tip (13). The upper side of the cutting tip (13) is provided with a recess (22) which gives the insert (10) a positive cutting geometry. A flat upstanding area (23) is arranged radially inside the cutting tip (13) to finally shape the chip after it has been preformed at the recess (22).

Abstract: A wear part with high wear and abrasion resistance combined with unlimited weldability and good mechanical strength or toughness, comprising a composite part of hard metal portion, a cast metal alloy body portion and attached thereto to joining portion, characterized in that the joining portion consists essentially of a weldable steel which by casting is bonded to the cast metal alloy body portion to a combined mechanical-metallurgical bond is provided, as well as a method for forming such a wear part.

Abstract: An apparatus forms granulates from a flowable viscous mass. The mass is delivered to a tubular body and flows downwardly from a lower slit thereof in the form of drops. An endlessly revolving belt travels across the slit in tight engagement therewith. The belt has orifices therein which intermittently open the slit to admit the passage of the drops. The drops fall onto a conveyor which travels below the belt in the same direction and at the same speed as the belt.

Abstract: A sealed rotary drill bit comprising at least one rotatably carried roller cutter (13) and provided with a seal between the cutter and a mounting head (22) for preventing lubricating medium from being discharged from the bearing (14, 15, 16, 17, 18) and impurities from entering the bearing. For purposes of decreasing the friction the seal (22) is provided with a low friction material on a portion of the seal which engages the head to promote rotation between the seal and the head. The portion of the seal which engages the roller cutter has a material of higher frictional coefficient to resist relative rotation between the seal and the roller cutter (25).

Abstract: A tool magazine of a tool handling machine which carries several similar tools comprises a unit which can be removed from the tool machine. The tools are conducted between guide rails in a lengthwise shiftable manner. The lengthwise feed of the tools in the tool magazine takes place by means of a feed comb whose comb teeth are moved transversely into engagement between the individual tools. The feed comb carries out a driven feed movement in a lengthwise direction of the magazine. The tools are moved from the tool magazine by a tool gripping device and conducted to a tool fixture of the tool machine. Conversely, the expended tools are moved into the tool magazine by a tool gripping device.

Abstract: A drilling assembly for use in percussion drilling comprising a drill bit and a drill rod having cooperating conical surfaces, one of said surfaces being provided with a helically extending thread. For purposes of ensuring a reliable connection the thread meets certain geometrical demands and is designed as a left hand thread. Further, the conical surface being provided with the thread is harder than the other conical surface.