baber/WOPTO huggingface dataset:
Patent GB-702715-A (GB)
Title: Improvements in or relating to file-cutting machines
IPC: B23D73/00
Filed: 1952-01-04
Abstract: 702,715. File-cutting machines. WALTERS, B. Aug. 14, 1952 [Jan. 4, 1952], No. 304/52. Class 83 (4) A file cutting machine of the type having a fixed head for the hammer mechanism, a cam operating a.lever to lift the hammer and to allow it to fall under spring action, and a lead screw for the work table, comprises spring-urged means to hold the hammer out of operative connection with the cam and means operable by the operative to overcome the spring urge to enable the cam to operate the hammer. The lead screw 1 of the machine traverses a table 3 from left to right to enable a tool secured in the .slot 4 of the hammer slide 5 to cut a blank held on the spelter bed 6 supported by the table. The blank is held by a foot 7 carried by a weighted lever 8 the weights 9 of which may be raised by a pedal 10 to disengage the foot from the blank. A lever 11 controls a half nut by which the table is engaged to and disengaged from the lead screw 1. The hammer slide 5 works in an inclined fixed head 12 and is downwardly urged by an adjustable spring 13. A cam 14 raises the slide 5 against the spring by engaging the rear end 15 of a pivoted lever 16 the forward end 18 of which engages a shoulder on the slide. A projection 19 on' the lever 16 is engaged by a projection 20 on a downwardly spring-loaded plunger 21 and the lever is held clear of the cam 14. The plunger 21 is connected by means of a pivoted lever 27 and a link 31 to a pedal lever 32 depression of which raises the plunger 21 and allows the lever 16 to engage the cam and so operate'the hammer. The plunger 21 may directly engage the slide 5 when raised by the spring thus holding the slide clear of the lever 16 until the pedal 33 is depressed. When a row of teeth have been cut the operator withdraws the half-nut from the lead screw 1, releases the pedal 33 so that the hammer is held inoperative by the spring 22 and the table 3 is returned by a weight 34 attached to the table by 'chain 35 which passes: over a roller 36. The rate of return up to a stop 37 is controlled by the lever 11. Alternatively, the table may be returned by means of a hydraulic cylinder the piston of which is connected to the table by a chain a two-way valve being coupled to the lever 11 to control the rate of return.
Patent GB-1506101-A (GB)
Title: Photodiode circuit arrangement
IPC: H01L31/10
Filed: 1976-01-06
Abstract: 1506101 Radiation detector circuits FRANKE & HEIDECKE GmbH [trading as ROLLEI-WERKE FRANKE & HEIDECKE] 6 Jan 1976 [15 March 1975] 00333/76 Heading G1A In a radiation responsive circuit comprising a photo-diode 4 connected between the gate 12 and source 6 of a FET 1 arranged as a source follower, a pnp transistor 2 is connected with its base 9 to the FET drain 7, its collector 10 to the FET source 6, and its emitter 11 to a D.C. supply line 15. Light-responsive current in a photo-diode 4 develops a voltage across a gate resistor 5 which is followed by a source resistor 3, but imperfectly because of non-linearity in the FET transconductance. Furthermore the necessary variations in gate/source voltage, which appear across the photo-diode 4, produce changes in self-capacitance which may disturb the frequency response of the photo-diode. In the invention the drain current, amplified by a pnp transistor 2, is fed back into the source resistor 3, so that the FET current, and the necessary variations in gate/source voltage, are thereby substantially reduced.
Patent GB-571874-A (GB)
Title: Improvements in and relating to umbrellas and the like
IPC: A45B25/10
Filed: 1944-01-10
Abstract: 571,874. Umbrellas. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and JONES, N. C. Jan. 10, 1944, No. 408. [Class 134] The ribs or stretchers 1 have laterally extending pins 3 on the flat ends 2 which engage in an open groove 6 in the notch or runner 4. The grooves are closed by spring clips which are shown as in the form of a cap 8 with a slotted peripheral flange 12, provided with a protuberance 12a to snap into the groove 6, and, if desired, also a lip 13, Fig. 3, to snap under the lower edge of the notch or runner. The individual ribs or stretchers are assembled or removed by snapping the pins 3 under the parts of the cap flange 12.
Patent GB-1371590-A (GB)
Title: Method for electrolytically treating the surface of steel plate or strip
Inventor: YAMAGISHI H
IPC: C25D11/38
Filed: 1973-01-03
Abstract: 1371590 Electro-depositing Cr/Cr oxide NIPPON KOKAN K K 3 Jan 1973 [14 Jan 1972] 434/73 Heading C7B A method of electro-depositing a duplex layer of metallic chromium and hydrated chromium oxide on to a steel plate comprises immersing the steel plate as a cathode in an electrolyte containing CrO 3  ions, a thricyanic compound as a first promotor and AlF 3  3NaF or AlF 3 3KF as a second promotor. The CrO 3  ions are 10-150g/l. The first and second promotor may be 1/100th to 1/10th of the concentration of the CrO 3  ions. The thiocyanic compound may be NaSCN. The steel may be electrolytically degreased, washed in water, electrolytically pickled in H 2 SO 4  then the duplex coating deposited. The surface may be subsequently painted. Specification 1258021 is referred to.
Patent GB-124467-A (GB)
Title: Improvements in Apparatus for Discharge of Torpedoes.
IPC: F41B11/00
Filed: 1916-01-13
Abstract: 124,467. Bryant, C. W., and Brotherhood, Ltd., P. Jan. 13, 1916. Pressure-regulating valves.-A pressure-regulating valve for use with apparatus for launching torpedoes has the valve member fitted with a balancing piston, and is loaded by fluid pressure from an auxiliary reservoir acting on one side of the actuating piston. As shown in Fig. 1, air is admitted from the main reservoir b through a valve chamber c having a piston d which, is not airtight and an outlet e leading to an auxiliary control valve f. When the valve f is opened to the atmosphere, the piston d rises and admits compressed air to a balanced valve g. The valve g is connected to a piston k by a rod h, and the pressure in the chamber l is controlled from an auxiliary receiver m which is connected through a stop valve n to the reservoir b, and the pressure in which is adjusted to be lower than that in the reservoir b and equal to the uniform pressure desired. If the pressure above the piston k rises, the piston is depressed in the chamber l and closes the valve g so that the pressure upon the torpedo never exceeds the safe limit. In a modification, the valve g remains closed or nearly closed until the valve d is open, and means are provided whereby the air is gradually admitted to the intermediate vessel.
Patent GB-1143071-A (GB)
Title: Improvements in or relating to electrical aptitude testing apparatus
Inventor: GAINES BRIAN RONALD
IPC: A61B5/18
Filed: 1966-01-06
Abstract: 1,143,071. Apparatus for testing aptitude. SECRETARY OF STATE FOR DEFENCE. 2 Jan., 1967 [6 Jan., 1966], No. 606/66. Head ing A5K. Electrical apparatus suitable for testing an operator's aptitude has a variable natural frequency and variable damping, an input and an output, means for detecting the error at the output and servo means for controlling the natural frequency or the damping according to the error so that the difficulty of controlling the output from the input is decreased as the error increases above a predetermined level and is increased as the error decreases below a predetermined level. As shown, the operator, by manipulating a joy-stick &c., varies the input at a potentiometer slide VR1 and attempts to control the output shown on a cathode ray tube T or meter, the apparatus including a first integrating circuit comprising an amplifier Al, resistor R1, and capacitor C1, and second and third integrating circuits A2, R2, C2, and A3, R3, C3. The apparatus also includes a positive feedback loop comprising potentiometer VR2, amplifier A4, potentiometer VR3 and resistance R6, and a negative feedback loop comprising amplifiers A4, A5, potentiometer VR3' and resistance R9 ,and by varying the potentiometers VR3, VR3' the damping may be varied. The natural frequency is varied by adjusting the potentiometers VR2, VR2' and the apparatus may include an input line R4 for a disturbing voltage. The output from the amplifier A3 is rectified at diodes D1, D2 and, after effective comparison with the voltage from a potentiometer VR4 which provides the predetermined level, the output controls servo motors M1, M2 which in turn adjust the potentiometers VR2, VR2', VR3, VR3' determining the difficulty of the operator's task. A graph plotter P records the difficulty of the task and hence the operator's performance and a sweep generator G may adjust the apparatus in steps. The difficulty of controlling the apparatus may also be increased by moving the switch S to the contact 2. The apparatus enables the operator to acquire manipulative skill and is said to be useful as a teaching aid.
Patent GB-1416492-A (GB)
Title: Compositions containing microspheres and friction elements produced therefrom
IPC: C08J5/14
Filed: 1973-01-05
Abstract: 1416492 Friction compositions UNION CARBIDE CORP 5 Jan 1973 [6 Jan 1972] 769/73 Heading C3R A friction element is formed from a composition which comprises a thermosetting resin binder, preferably in an amount of 5-49% by weight, friction particles and microspheres preferably in an amount of 0À1-30% by weight to improve the friction characteristics and service life of the composition. Suitable materials from which the microspheres can be produced are thermoplastic and thermosetting resins such as vinyl resins, acrylic resins, polyethylene, polyhydroxyether resins, polysulphones, polyamides, phenolic resins, urea- HCHO resins, melamine-HCHO resins, alkyd resins, polysiloxanes and epoxy resins; cellulose acetate, cellulose acetate-butyrate and cellulose propionate; inorganic materials such as silicates, polyborates, polyphosphates, ceramics, and carbon. Suitable friction particles are filamentary materials such as fibres of asbestos, steel wool, bronze, glass, cellulosic material and polyacrylonitrile; particulate materials such as BaSO 4 , cork dust, silica, mica, metal particles, clay, litharge, CaO, ZnO, Zn dust, graphite, MoS 2 , iron oxide and cashew-nut shell oilaldehyde condensates. Suitable binders are arylimide resins, polyepoxides, polyesters, phenolic resins which may be oil-modified with linseed, tung, castor or soybean oil. In the examples compositions are prepared, moulded into plaques and tested as to brake action and surface life, the compositions comprising in parts by weight: asbestos fibres 60; barium sulphate 10; cashew-nut shell oil-aldehyde condensate 10; phenol-HCHO novolac binder 16-19; phenol-HCHO resin microspheres 1-4. Similar compositions are prepared using glass or vinylidene chloride-acrylonitrile resin microspheres instead of the phenolic resin microspheres. Uses.-Brake linings; clutch facings.
Patent GB-320573-A (GB)
Title: Improvements in tracks for high speed suspension railways
IPC: E01B25/22
Filed: 1929-01-09
Abstract: 320,573. Kruckenberg, F., and Stedefeld, C. Jan. 9, 1929. Addition to 266,968, Elevated railways.-A rail-supporting structure, for high-speed suspension railways with long spans and continuous rails, has a plurality of auxiliary carriers 11 arranged endwise and longitudinally movable on a main span girder 10, the carriers being free to expand and contract but having a separate anchoring arrangement. The carriers are secured at their centres 14 to scissors 16, Fig. 2, anchored to the main pillars 13 by bands 17, 18. This arrangement may be duplicated laterally for each span. The lengths of the scissors arms are proportional to the bands 17, 18. In a modification, Fig. 6, single levers 21 are used with bands 22, 23. Alternatively, the carriers may be anchored to the pillars by bands of temperature-indifferent steel, such as " Invar." The carriers may be supported on the main girders by roller bearings or suspended by pendulum members.
Patent GB-584616-A (GB)
Title: Improvements in or relating to liquid-fuel-burning injectors
IPC: F23D11/24
Filed: 1945-01-10
Abstract: 584,616. Liquid-fuel burners. LUCKHAM, P. M. Jan. 10, 1945, No. 884. [Class 75 (i)] In a liquid-fuel sprayer suitable for use in combustion turbines and jet propulsion plants the fuel is supplied under pressure through a duct 19 in a body 11 to an annular chamber 18 for discharge through an orifice 13 in a valve seat 12, the fuel passing through slots 17 in a sleeve 16 on the seat 12 and forcing a valve 21 inwards in a bore 22 in the body 11 against the resistance of a spring 26; the tension of which is regulated by a member 25 threaded in the bore 22 and formed with keyholes 31. The movement of the valve 21 is limited by a stop pin 24 threaded in the member 25, the thread of the pin 24 being of opposite hand to the external thread on the member 25. The head of the stop pin 24 is enlarged to fit the bore 22 and the rear end of the bore is sealed by the head of a screw 29 of opposite hand or different pitch from the stop pin 24. An axial duct 46 in the valve 21 allows fuel leaking past the valve 21 to pass to the orifice 13. The seat 12 is secured against a shoulder on the body 11 by a ring nut 15. The body 11 is surrounded by a casing formed in two internally threaded parts 34, 35, the part 34 being jointed to the fuel pipe 37 and the part 35 being formed with ports 43 for the passage of air to mix with the fuel spray discharged from the orifice 13. In another construction the fuel passes through a ball valve and a filter before entering the duct 19.
Patent GB-1517222-A (GB)
Title: Computing scale
IPC: G01G19/40
Filed: 1975-09-22
Abstract: 1517222 Weighing, involving analogue-to-digital conversion NATIONAL CONTROLS Inc 22 Sept 1975 [30 Sept 1974] 00919/78 Divided out of 1517221 Heading H3H In a postal weighing scale an electric signal from a load cell is repetitively digitized, the digitized signal obtained at one time being stored and subtracted from successive digitized signals to provide net weight signals, and auto-taring means are provided to determine whether each successive net weight signal differs from a reference level by less than a predetermined amount and changing the stored signal by an increment less than the predetermined amount each time that one of the net weight signals differs from the reference level by less than the predetermined amount, thereby tending to maintain the net weight signals at the reference level in the absence of a load. A microprocessor is provided for computing the postal charge for a weighed object from the average of the last eight digitized signals, stored postal rate information and keyboard input information concerning air mail, class and post code. The digitizing is done by a dual slope A-to-D converter.
Patent GB-1509501-A (GB)
Title: Internally-meshing gears
IPC: F16H55/08
Filed: 1976-01-12
Abstract: 1509501 Rotary positive-displacement fluidmachines W S ROUVEROL 12 Jan 1976 [15 Jar 1975] 00960/76 Heading F1F In an internally-meshing gear type compressor or I.C. engine each of the teeth 52 of outer gear 51 has a concave epicycloidal dedendum 53 and a small convex hypocycloidal addendum 54, each of the teeth 56 of inner gear 55 has a convex epicycloidal addendum 57 and a small concave hypocycloidal dedendum 58, and the path 59 of contact of the teeth is located between the pitch circles 61, 62 of the gears and closer to the circle 61 than to circle 62. Lines PH and PG indicate the directions of forces at contact points G and H.
Patent HK-58894-A (HK)
Title: Probe for an adapter for a device for testing printed circuit boards
Inventor: MAELZER MARTIN
IPC: G01R1/073
Filed: 1994-06-23
Abstract: A probe (14) for an adapter (13) for connecting test contacts in a matrix of a circuit board tester to test points (3), located in and/or outside the matrix, of a test specimen such as a circuit board (2), in which arrangement the probe (14) can be plugged into guide holes (45 to 49, 45.1 to 49.1) with different oblique positions in the adapter (13) for connecting associated test contacts and test points and in each case has a pointed contacting section (a) which faces the relevant contact point (3) of the circuit board (2) and protrudes from the adapter (13), and an adjoining guide section (b) which is guided in the associated guide hole of the adapter (13), is to be developed in such a manner that test specimens with a relatively short distance (c) between their test points (3) can also be tested. This is achieved by means of the fact that the cross-section of the guide section (b) is reduced conically or in steps towards the contacting section (a).
Patent HK-67990-A (HK)
Title: Method and circuit for establishing a conference connection
Inventor: ESCHMANN JOACHIM
IPC: H04M3/56
Filed: 1990-08-30
Abstract: A conference circuit in a digital telephone switching system includes a first code converter (CCL), which converts nonlinearly coded speech samples into linearly coded speech samples, and adder (ADD), which sums the converted speech samples originating from the participants in the conference, and a second code converter (LCC), which reconverts the sum values into nonlinearly coded speech samples. To avoid distortion without increasing the insertion loss, the speech samples of the individual participants are integrated with respect to time and compared in an evaluation circuit (EVC). The speech samples of the loudest participant are fed to the adder unattenuated, while those of all other participants are attenuated by a predetermined value before being added.
Patent HU-T60131-A (HU)
Title: Process for producing tablet
Inventor: ERDOES SANDOR
IPC: A61K47/20
Filed: 1991-01-30
Abstract: The subject-matter of the invention is a process for the preparation of tablets or film-coated tablets with increased active ingredient release, said tablets comprising as active ingredients a mixture of L-3,4-di-(hydroxy)-phenylalanine and L-alpha-(hydrazino)-alpha-(methyl)-3,4-di-(hydroxy)-phenyl propionic acid, by admixing any of L-3,4-di-(hydroxy)-phenylalanine and L-alpha-(hydrazino)-alpha-(methyl)-3,4-di(hydroxy)-phenyl propionic acid, or both of them, with hydrophilic diluents, and optionally with colouring agents, blending the mixture thus obtained with auxiliary agents conventionally used for the preparation of tablets and optionally with the other active ingredient, moreover with a solution of stearin in an organic solvent, optionally containing auxiliary agents conventionally used for the preparation of tablets, drying and granulating the mixture thus obtained, optionally admixing further auxiliary agents to the dry granulate, compressing it into tablets and, if desired, applying a film-coating onto the surface of the tablets thus obtained. The process according to the invention provides tablets of appropriate quality with rapid active ingredient release.
Patent JP-H01178302-A (JP)
Title: System for hot rolling
Inventor: KITAMURA KATSUHIKO
IPC: B21B1/26
Filed: 1988-01-06
Abstract: PURPOSE:To prolong a service life of a finishing rolling roll by installing a bender for crown control at the outlet of a thin sheet continuous casting machine and a finishing tandem rolling mill in the downstream side of the machine, respectively. CONSTITUTION:A bender 4 controlling crows is installed at the outlet of a thin sheet continuous casting machine 3 consisting of a tundish 2, mold, and may pinch rolls 8, etc., and a cutter 5 and a finishing tandem rolling mill 6 are successively installed. A thin sheet slab 9 delivered from the outlet of the mill 3 enters the bender 4 and is subjected to crown control in accordance with wear of rolling rolls of a finishing mill 6. That is, a sectional shape of the slab 9 is corrected by the bender 4 in accordance with wear amounts and wear positions of finishing rolls. Thus, a service life of the finishing rolls is prolonged because progress of wear of the rolls is restrained.
Patent JP-H08189725-A (JP)
Title: Refrigerant evaporator
Inventor: AIKAWA TAIICHI
IPC: F28F9/22
Filed: 1995-01-05
Abstract: PURPOSE: To provide an evaporator, capable of further improving heat exchanging efficiency by a method wherein the generation of passing sound of refrigerant owing to choking holes is restricted while securing the size of the choking holes of a nozzle capable of effecting as chokes and the distributing performance of refrigerant from the choking holes to a number of refrigerant passages of a refrigerant distributing pipe is increased. CONSTITUTION: The inner diameter of the choking hole 37 of a nozzle 33 is increased as much as possible. The center of section of the choking hole 37 of the nozzle 33 is provided so as to be eccentric upwardly with respect to the center of section of a refrigerant distributing pipe 35 inserted into the inlet tank 44 of an evaporator 5 whereby the gas/liquid separation of the refrigerant of gas and liquid mixed condition, which flows out of the choking hole 37 in the refrigerant distributing chamber 57, can be mitigated.  On the other hand, the inflow of refrigerant, flows out of the choking hole 37 of the nozzle 33, into the lower part of the refrigerant distributing pipe 35, is made more easy than the inflow into the lower side of the pipe of the refrigerant distributing pipe 35 whereby refrigerant distributing performance from the choking hole 37 into the multitude of refrigerant passages 49 of the refrigerant distributing pipe 35 is increased much more.
Patent JP-H11195706-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: MATSUNAGA NORIAKI
IPC: H01L23/522
Filed: 1998-01-05
Abstract: PROBLEM TO BE SOLVED: To enhance electric shielding effect for through-hole wiring by forming sidewall conductor layer between semiconductor substrate, which is to become a sidewall of the through-hole, and a side-well insulating film. SOLUTION: Through heat treatment, a Ti-Tin film 24 and silicon below the film are made to react, and silicide is formed. That is to say, though the reaction with the substrate silicon which becomes the inner wall of a through- hole, silicide 21c is formed by the reaction with the polysilicon film which is become a gate electrode from a silicide layer 21b, based on the reaction of silicide 21a with an impurity dispersed layer. The silicide 21a is in contact with a (p) well region and made to be a sidewall conductor layer. Thus, the silicide 21a, which is to become the side wall conductor layer is formed via a sidewall insulating film 22 at the outside of a through-hole wiring 23. Conductivity of this silicide 21a has a value lower than the conductivity of the (p) well region at the outsise. That is to say, the electric shielding effect with respect to the through-hole wiring 23 is enhanced by providing the sidewall conductor layer 21a.
Patent JP-H09187159-A (JP)
Title: Threshing and grading device of combine harvester
Inventor: KAWAMOTO YOSHINOBU
IPC: A01F12/54
Filed: 1996-01-08
Abstract: PROBLEM TO BE SOLVED: To provide the threshing and grading device of a combine harvester, capable of preventing the inadequate discharge of treated materials, when the frame of the combine harvester is turned. SOLUTION: This threshing and grading device of a combine harvester is provided with a shielding member 26 capable of opening or closing the third grade opening 27 formed in a state faced to the final end of a vibration-grading device 20. Therein, an opening or closing means K for opening or closing the shielding member 26 is linked to a clutch 32 for clutching in or off the driving of a feed chain in such a switchable state that the shielding member 26 is closed, when the clutch 3 is released, and that the shielding member 26 is opened, when the clutch is shoved.