Wear parts or cutting tools, in which the part being exposed to wear is essentially an extremely difficultly grindable material (e.g., hard material), but in which the manufacture of the wear part or cutting tool requires considerable grinding operations can, according to the invention, be made better and cheaper forming the wear part or cutting tool of a compound material which is a wear-resistan...

An automatic tool for rapidly setting rivets or like fasteners of the expansion type supplied in strip form. It comprises a magazine for receiving a strip of rivets in which the rivets can advance stepwise so that the leading rivet faces the outlet orifice. A breech movable longitudinally along the axis of the outlet orifice and provided with a barrel fitting over the rivet mandrel and over the ri...

The invention relates to an apparatus for providing radiation of controlled spectral composition, comprising radiation sources (51, ... 5n) each emitting a quasi-monochromatic radiation, a control unit (9) operating the radiation sources (51, ... 5n) corresponding to a predetermined spectral composition, and a dispersing element (1) irradiated by the radiation sources (51, ... 5n) to produce the r...

A spun yarn splicing device comprises a yarn splicing member having a yarn splicing hole, a fluid ejection nozzle for ejecting compressed fluid into the yarn splicing hole, and a slit opening into the yarn splicing hole for guiding yarn ends to be spliced into the yarn splicing hole, the yarn splicing hole being cylindrical in a cross section, the slit being directed tangentially to the yarn splic...

A bobbin holder (1) with a pivotably mounted creel (2) has on each of its two supporting arms (3a, 3b) a freely rotatably mounted tube plate, of which one (7) possesses a centring extension (10) receiving the bobbin tube (5), axially next to said centring extension at least one yarn-catching device (12), and a bearing extension (11) surrounding a bearing journal (18) concentrically and projecting ...

A powder reinforcing machine for the manufacture of stiffening or reinforcing articles applyable to shoe uppers or articles of clothing or the like, for reinforcing, stiffening or even decorating thereof. The machine utilizes an annular rotating belt supported over an arcuate array of heater segments, once the powder has been deposited on the belt by deposition means. The belt is intermittently ad...

A control system for a motor vehicle drive train including a continuously variable transmission is disclosed wherein a command signal is generated in response to the sum of an integral control factor and a proportional control factor, and the integral control factor is suppressed to almost zero when a deviation of a reduction ratio representative parameter from a target value is greater than a pre...

Disclosed is a method and apparatus for winding glass optical waveguide filaments during drawing thereof. When a spool is full, the apparatus automatically changes spools, attaches the filament being drawn to a spool moved into the winding station, and severs the filament from the full spool.

A rotary die cutter for die-cutting blanks one after another has a blank feed unit, a pair of cylinders for die-cutting the blanks, and an endless member running synchronized with the cylinders. The blanks are gripped by grippers mounted at equal spacings on the endless member. The cylinders are adapted to allow the grippers to pass between the cylinders while gripping the blanks.

PURPOSE:To prevent a microcomputer from runaway due to the abnormality of an external I/O device by forming both or any one of the 1st and 2nd counters for outputting signals resetting the microcomputer. CONSTITUTION:If it is supposed that abnormality is generated in the external I/O device 2 during the transmitting/receiving time of data. In this case, a recognition signal RDY signal for recogniz...

The circuit arrangement for branched railway networks serves to permit the operating personnel in the signal boxes to rapidly detect a route, which is to be preferred, consists of individual sections of track and has a minimum of sections to be travelled through. For a device which simulates the respective railway network, an electrical system which can be supplied with direct current is set up co...

A lighting device for apparatus detecting flaws in objects having a photoelectric sensor aligned with the object and a processor responsive to the sensor for determining the light received by the sensor. The lighting device includes a ring-shaped lamp and an opaque shield having predetermined light paths controlling the direction of the light from the lamp in a selected direction, so that the ligh...

PURPOSE:To enable maintenance of the inside of a vacuum vessel in an always clean state by controlling the vapor scattering to other parts except to a substrate to be vapor deposited in a way as to be stuck to belt-like sheet member so that said member is successively wound away during execution of the treatment. CONSTITUTION:While the substrate 14 to be vapor deposited is set to a revolving shaft...

The invention is based on a flat picture screen, in which electrons from a plasma at the rear are drawn forwards through selected holes in a control disc (3), which is provided with line and column conductors (9 and 10) on the front and back. The electrons then receive energy levels of several kV and finally generate light spots on a fluorescent screen. It is proposed that the control disc (3) be ...

This invention relates to the manufacture of foam from phenolic resins and to the foam so produced. In order to overcome some the the limitations of the prior art closed cell phenolic foams, we have developed a method of preparing closed cell foams from modified, low cost phenol formaldehyde resoles, which exhibit high closed cell contents, low friability and low thermal conductivity. This specifi...

What is disclosed is a method of making a foamed polyacrylimide or polymethacrylimide polymer which comprises free-radically polymerizing a mixture comprising (A) a member selected from a first group consisting of acrylonitrile and methacrylonitrile and a member selected from a second group consisting of acrylic acid and methacrylic acid, the mol ratio of the members of said first group to the mem...