baber/WOPTO huggingface dataset:
Patent GB-1300837-A (GB)
Title: Circular knitting machine
IPC: D04B15/68
Filed: 1970-08-20
Abstract: 1300837 Knitting machines ELITEX ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 20 Aug 1970 [3 Sept 1969] 40102/70 Heading D1C A rotary cylinder knitting machine with one or two cylinders has a pattern device comprising selecting cams 36 which, through axially stationary selectors 9 control auxiliary jacks 6 which co-operate with a stationary guiding ring 34 and with intermediate jacks 4, the auxiliary jacks 6 having means for auxiliary; selection. The auxiliary tilting jacks beneath jacks 4 have butts 7 frangible apart from butt 7a and selected by radially movable cams 32, 33; 32a, 33a. Selectors 9 have recesses 12 near their upper ends for a circular spring 13, recesses 14 at their lower ends to receive a projection 38 on a ring 37 and a series of frangible butts 10 selected by radially movable cams 36, 36a. In operation, a first selection takes place when e.g. cam 361 engages a butt 10 to press a selector 9 in and pivot the corresponding jack 6 so that its butts 7 project and lowest butt 7a engages cam ring 25 which raises the jack 6 and hence jack 4 and needle 2. When the needle is lowered by the stitch cam during knitting it pushes jack 4 downwards and jack 6 is pivoted to its initial position by a chamfer on cam ring 25 and the selector 9 is pushed out against spring 13. The selection by cams 36 may be cancelled by radially displaceable cams 32 or 32a or later by cams 33, 33a which engage the butts 7 on jacks 6.
Patent GB-1220894-A (GB)
Title: Bidirectional semiconductor switch
IPC: H01L29/747
Filed: 1968-08-22
Abstract: 1,220,894. Triacs. MITSUBISHI DENKI K.K. 22 Aug., 1968 [25 Aug., 1967], No. 40182/68. Heading HlK. In a Triac the annular main electrode 28 on one face bridges the junction between the emitter region 18 and the adjacent inner region 14 over all the surface-emergent periphery of the emitter region except that part facing the gate region 24 and its associated electrode 32. The gate electrode shorts the gate region 24 to the adjacent inner region 14 only on that side of the gate adjacent the emitter 18. Such a construction has a long and hence high resistance path between whichever of the gate and emitter junctions is forward biased and the other of their respective electrodes. By varying the device parameters this resistance may be made high enough to develop the junction barrier voltage within the permissiable range of gate currents and hence ensure injection and turnon. The concentric shape chosen simplifies manufacture. The lower emitter region (20, not shown) occupies in plan the remainder of the circle outlined by upper emitter 18 (it has a protuberance extending under the cavity defined by R 2 ). In a modification (not shown) the inner regions 14 (16) may extend through their respective emitter regions (which are of the outline shape shown) as a plurality of small inclusions in known manner.
Patent GB-924477-A (GB)
Title: Improved photographic developing and processing apparatus
IPC: G03D17/00
Filed: 1960-11-23
Abstract: 924,477. Photographic developing apparatus. F. C. ROBERTS. Feb. 19, 1962 [Nov. 23, 1960], No. 40227/60. Class 98 (1). A developing apparatus for use in ordinary light comprises a light-tight cabinet having a pair of arm-holes with light-tight collapsible sleeves; within the cabinet is a tank or dish mounted for rocking movement so that it can be tilted sufficiently to discharge its contents into a further container below. In the form shown, the cabinet is constituted by a box 4 having a lid 5 and an inspection window (not shown). Partitions 18 with hinged lids 20 form storage compartments for reagent bottles &c., and also supports on which they may be stood during use. Centrally within the box 4 is mounted a semicircular tank 9 on a horizontal axle 10. The tank is weighted at 23, so that normally it occupies the position shown, but may be tilted to empty its contents through an opening 13 near its rim into a tray 14 below. The film being processed is carried on a disc 15, which has a number of pins 16 round its periphery and clips 17 by which the film may be supported and stretched round the framework of pins. The disc 15, which is also supported on axle 10, may be suitably modified if plates are to be processed. In operation, the disc is rotated so that the film passes through the liquid in the tank. The cabinet has two armholes to which are attached sleeves, as in Figs. 1 and 3 (not shown), so that the operator may insert his hands through these sleeves and into the cabinet without allowing any light to enter therein. Thereafter he can manipulate at will the reagent bottles and other accessories, rotate the disc 15, and fill and empty the tank 9 with the various processing liquids.
Patent GB-1286305-A (GB)
Title: Improvements in or relating to pressurized aerosol dispenser valves
IPC: B65D83/14
Filed: 1969-08-12
Abstract: 1286305 Pressurized dispensing container valves DART INDUSTRIES Inc 12 Aug 1969 [12 Aug 1968 17 Dec 1968 5 March 1969] 40239/69 Heading F1R A self cleaning valve for a pressurized dispensing container comprises a spring-biased valve member 36 slidable in a housing 14 provided with valve elements 64, 62, port 92 and sealing washer 24 which respectively co-operate with a slot 74, ring 37 and valve seat 40 of the valve member 36, so that upon initial depression of the member 36 valve seat 40 is unseated and vapour can pass through port 92 (not yet completely blocked by ring 37) to purge the valve, and upon further depression the port 92 is sealed by the ring 37 and the slot 72 allows product to by-pass the elements 64, 62 to be subsequently dispensed. Upon release of the member 36 product flow ceases first and the valve is then purged through port 92 before final closure of the seat 40. The valve member 36 has an annular guide portion 56 which is adapted to abut a shoulder 76 to limit downward movement of the member 36. Peripheral notches 58 and ports 41 in the guide portion 56 and ring 37 respectively allow flow of product or purging vapour therethrough. In a modification, Fig. 9 (not shown), the valve member 36 is outwardly biased by a spring (43) mounted exteriorly of the housing 14, in a button (45). In another modification, Figs. 13, 14 and 15 the ring 62 is replaced by an annular sealing lip (15), and in a final modification, Fig. 16 (not shown), an axial slot (100) is formed in the housing 14 and co-operated with an annular lip (102) on the valve member 36.
Patent GB-903005-A (GB)
Title: Improvements in or relating to spray nozzles
Inventor: DEMAISON RAYMOND JULES
IPC: C21C5/44
Filed: 1959-11-26
Abstract: 903,005. Nozzles. QUIGLEY CO. Inc. Nov. 26, 1959, No. 40282/59. Class 69 (3). A nozzle for spraying refractory material on to the walls of a furnace comprises a cylinder 13 closed at one end by a threaded plug 16 and fed at the other by a pipe 12, and spray issues from a fan-shaped opening 17 in its side wall and spaced from the inner end wall of the plug. The walls 18 of the opening are parallel and extend perpendicular to the nozzle axis, and the side walls 19 extend radially from that axis. Specification, 833,026 is referred to.
Patent GB-1357034-A (GB)
Title: Exhaust gas purifying systems for internal combustion engines
IPC: B60H1/32
Filed: 1971-08-27
Abstract: 1357034 Cooling and ventilating vehicles K AOI 27 Aug 1971 [5 Oct 1970] 40435/71 Heading F4V [Also in Division F1] Exhaust gas purifying system for a hydrocarbon fuel driven vehicle and which is combined with an air conditioning system for the vehicle comprises (a) an exhaust gas purifying system for effecting adiabatic expansion of the exhaust gas to reduce its temperature to the critical point for the condensation of water droplets containing toxic or pollutant components of the exhaust gas and (b) cooling means for augmenting the cooling achieved by the adiabatic expansion when the ambient temperature is sufficiently high for said cooling to be insufficient for the gas to be cooled to the critical point. Exhaust gas from an engine E passes through a chamber H containing a refrigerant heater 22 and then through a purifier A.C. in which the gas is expanded adiabatically. The heater 22 contains an absorbent-type refrigerant e.g. a mixture of ammonia and water or an aqueous solution of lithium bromide and is connected by a riser pipe 23 to a separator 24. The refrigerant gas passes to a condenser 25, an evaporator 27 in a cooling chamber 26 and then returns to a liquid receiving tank 28. Water from the separator 24 returns to the tank 28 via an absorber 29. Air is blown into the chamber 26 where it is cooled and then passes around the purifier A.C. The air may be discharged to atmosphere or re-circulated through a pipe 34. Alternatively the cooling chamber 26 may be used to cool water which is circulated through a jacket around the purifier A.C. The purifier A.C. is shown in Fig. 2 and is of the type described and claimed in Specification 1,160,388. The gas expands adiabatically in the chambers 6, passes out through perforations in the wall of the chamber, across a condensing chamber 8 and through the perforated walls thereof into a mass of filter material 4. Condensate is collected in a drain 12.
Patent GB-992887-A (GB)
Title: Mach rate signal generating device
IPC: G01P5/175
Filed: 1963-10-14
Abstract: 992, 887. Measuring electrically. BENDIX CORPORATION. Oct. 14, 1963 [Oct. 15, 1962], No. 40503/63. Heading G1N. The rate of change of Mach number of a body is derived by subtracting a signal representing the rate of change of the logarithm of static atmospheric pressure from a signal representing the rate of change of the logarithm of the total impact air pressure. A pilot tube 10 actuates total pressure servo 2 and static air pressure servo 4, each including a bellows 25, 25A and a differential transformer 37, 37A. The amplified outputs operate servo motors 51, 51A which reposition the E- cores of the transformers through shafts 61, 61A. The arrangement is such that the motor shafts are driven at speeds varying with the rates of change of the respective pressures. Tachogenerators 55, 55A sense these speeds and outputs E T  and E S  are applied in opposition to load 75, e.g. an autopilot to act as a stabilizing signal. Signal E S  is also applied to the autopilot as a stabilizing signal indicative of rate of change of altitude.
Patent GB-981449-A (GB)
Title: Preparation of quinacridone pigments
Inventor: GERSON HERMAN
IPC: C09B48/00
Filed: 1962-10-18
Abstract: Quinacridone is precipitated from a polyphosphoric acid solution thereof by dilution with an organic, water-miscible liquid, the said solution being prepared otherwise than by the ring-closure of a 2:5-diarylamino-terephthalic acid by heating with at least an equal weight of a polyphosphoric acid having an orthophosphoric acid equivalent of at least 105%.  The solution may first be diluted with water or dilute orthophosphoric acid. Organic liquids specified are methanol, ethanol, isopropanol, glycerol, diacetone alcohol, diethylene glycol, acetone or mixtures thereof with water, or a mixture of denatured alcohol, ethyl acetate and aviation gasoline. Examples are given in which the solutions are made by dissolving quinacridone in polyphosphoric acid.  Specifications 828,051, 828,052 and 884,044 also are referred to.
Patent GB-1522972-A (GB)
Title: Process for the quality of steel sections
IPC: B21B45/02
Filed: 1975-10-06
Abstract: 1522972 Quenching steel sections CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE 6 Oct 1975 [4 Oct 1974 3 Feb 1975 28 Feb 1975(3) 7 March 1975 25 March 1975] 40759/75 Heading C7N A steel section having at least one flat face is surface quenched as it leaves the finishing stand of a rolling mill by a suspension of liquid in gas, the conditions being such that the unquenched region of the cross-section retains sufficient heat to subsequently temper the quenched region while itself being converted to ferrite and carbides. The liquid is preferably water or a solution of a mineral salt and/or surfactant and is suspended in air or steam. In a preferred embodiment the conditions are such that the final product has in cross-section a microstructure including one zone parallel to the flat face of the section and consisting of tempered martensite and non-tempered bainite, with below that a zone of non-tempered bainite and non-tempered ferrite-pearlite. There may additionally be an outer most zone of tempered martensite and an inner most zone of non-tempered ferritepearlite. Suitable forms of apparatus are shown in Figs. 2 and 4. In the former a spray manifold chamber moves on rollers 15 along the flange of beam 11.
Patent GB-1576930-A (GB)
Title: Apparatus for securing a rotary shaft against axial displacement
IPC: F16B21/04
Filed: 1977-09-30
Abstract: In order to be able to secure a profiled shaft (6), for example a shaft, which is provided with grooves (7), of a rotary switch against axial displacement, a securing disc (13) is provided having an opening (14) which is matched in mirror-image form to the profile of the switch shaft (6). The inwardly directed lugs (15) of the opening (14), which engage in the grooves (7) of the securing disc (13) when the latter is pushed onto the switch shaft (6), have cutting edges (17). If the securing disc (13) is now twisted relative to the switch shaft (6) by means of a tool which engages on the mutually opposite holes (28), then the cutting edges (17) will cut into the outer surface of the switch shaft (6) and, in such a position, will prevent axial displacement of the switch shaft (6) with respect to the axially guided securing disc (13). Such an arrangement renders additional machining of the switch shaft (6) superfluous and ensures sufficient axial retention. <IMAGE>
Patent GB-1323896-A (GB)
Title: Production of volume holograms and apparatus therefor
IPC: G03H1/04
Filed: 1970-08-25
Abstract: 1323896 Holography CANON K K 25 Aug 1970 [25 Aug 1969] 40899/70 Heading G2J In the production of volume holograms wherein the object and reference beams are incident on opposite sides of the hologram recording medium, the object beam after reflection from the object is passed through an analyser. Preferably a coherent source of light 3 is used which is elliptically, circularly or plane polarised. That part of the beam used to illuminate the object 1 is made plane polarized (as at 8) the direction of polarisation being perpendicular to the direction of polarisation of the analyser 11. The plane of polarisation of the reference beam is not perpendicular to that of analyser 11. If desired a semireflecting mirror 10 may be interposed between the object 1 and analyser 11 so that parts of the object may be illuminated by light reflected from mirror 10. Light passing directly through mirror 10 but not reflected from the object does not pass the analyser 11. If the reference beam is initially plane polarized a quarter-wave phase plate is located in its path to convert the polarization into circular polarization.
Patent GB-927629-A (GB)
Title: Improvements in annular gaskets
IPC: F16J15/46
Filed: 1960-11-29
Abstract: 927,629. Joint-making packing. D. TRAUFLER. Nov. 29, 1960, No. 40912/60. Class 122 (3). [Also in Group XXVIII] A gasket for providing a seal between two opposed annular surfaces comprises a tubular hollow body filled with a liquid and made at least partially of an elastically flexible but substantially non-expanding material, such as a metal, alloy or plastic, the wall of the body having at least one flexible zone constituted by at least one corrugation, groove and/or fold which undergoes elastic deformation when the gasket is clamped between the annular surfaces. As shown in Fig. 2, the gasket consists of circular half-envelopes joined together, e.g. by circular welding beads 3, 4 which may be provided with protective reinforcing bands or clips. Each half-envelope comprises in cross-section an arcuate sealing portion 2 integral with convex and concave portions 5, 6 and 7, 8 respectively; the portions 5, 6 may provide sealing contact. Liquid 9 is introduced in the chamber through one or more small tubes or orifices which are located on the outer or inner periphery at the level of the beads 3, 4 and which are welded over after the filling of the chamber is completed, the liquid being maintained under pressure or vacuum and filling the chamber either partially or completely. Alternatively, the liquid circulates in the chamber between supply and evacuation tubes or orifices. In modifications (a) the sealing portions are flat or provided with concentric corrugations; (b) a jacket of similar crosssection is formed around the chamber and is filled with a liquid similar to or different from that contained in the chamber; (c) the envelopes are of generally semi-circular sections welded at both ends; (d) a single envelope of generally circular section has a welding bead on its outer periphery and may be provided with a concave portion 20, Fig. 6, on its inner periphery; (e) rings 11 having a sealing surface which may be flat, curved or provided with concentric triangular ribs 14, Fig. 10, are coupled by corrugated diaphragms 12, 13.
Patent GB-865279-A (GB)
Title: Alternating electric current generating machines
Inventor: WILCOX KENNETH
IPC: H02K19/30
Filed: 1958-12-19
Abstract: 865,279. A.C. generators. MORRIS ELECTRICAL ENGINEERING CO. Ltd., JOHN. Nov. 11, 1959 [Dec. 19, 1958], No. 41009/58. Class 35. In an A.C. generating machine comprising a generator having a rotor b carrying a field exciting winding f and a stator a carrying polyphase current generating windings k, there is provided an exciter having a rotor e rotatable with the generator rotor b and carrying polyphase current generating windings h connected through rectifiers g to the generator field winding f, and a stator d carrying both voltage windings m connected across and corresponding in number with the generator stator phases and current windings n connected to feed the load circuit from the generator; the current windings n are displaced by 90 electrical degrees from the associated voltage windings m and both are connected to produce a field which rotates oppositely to the rotor e. As shown applied to a 3-phase machine the windings m, n and k are wound in stator slots and maintain constant load voltage over a wide range of load current variation; additional fine regulation may be provided by a toroidal winding p mounted on the exciter stator d and supplied with direct current from an external source.
Patent GB-1401990-A (GB)
Title: Tube expander
IPC: B21D39/20
Filed: 1972-09-05
Abstract: 1401990 Tube expanders MANNESMANNROHREN-WERKE AG 5 Sept 1972 [6 Sept 1971] 41188/72 Heading B3J The tapered polygonal body 1 of a tube expander has ribs 13 on which segments 5 are slidably mounted which have means 21 for engaging grooves 11 between the ribs. A keeper 21 (23) screwed to each end of the segments also functions as a scale scraper, or separate stripping means may be provided.
Patent GB-974528-A (GB)
Title: New phosphine oxide diols
IPC: C08G18/38
Filed: 1962-10-31
Abstract: The invention comprises phosphine oxide diols of the general formula: <FORM:0974528/C1/1> in which R is a C1-C4 alkyl radical or a cycloalkyl radical containing from 5 to 8 carbon atoms. They may be obtained by subjecting a compound of the general formula: <FORM:0974528/C1/2> to catalytic hydrogenation at a pressure above 100 atmospheres and at a temperature from 100 DEG  to 250 DEG C. The hydrogenation is preferably effected in alcoholic medium and the catalyst is preferably of the Raney nickel type. The products can be condensed with other bifunctional compounds to give hard resins (see Division C3). Specification 943,317 is referred to.ALSO:The invention comprises polyester or polyurethane condensation products comprising residues of at least one substituted bis (m-hydroxycyclohexyl) phosphine oxide having the general formula: <FORM:0974528/C3/1> wherein R is a C1-C4 alkyl radical or a cycloalkyl radical containing from 5 to 8 carbon atoms (see Division C2). The products may be obtained by condensing a phosphine oxide of the above general formula with bifunctional compounds such as saturated or unsaturated dicarboxylic acids, dicarboxylic acid dichlorides or diisocyanates. An example is given in which a mixture of methyl-bis-(m-hydroxycyclohexyl) phosphine oxide, maleic acid and propylene glycol containing a small amount of hydroquinone is heated at 230 DEG C., the water formed by esterification being removed by introducing benzene drop by drop. The product is then cooled, brought into solution in styrene, a portion of the styrene driven off and to the polyester solution in styrene is added a small amount of cobalt octoale and of a 50% solution of methyl ethyl ketone peroxide in methyl phthalate. The solution is then poured into a mould and maintained at room temperature for 5 hours to obtain a hard yellow resin. Specification 943,317 is referred to.
Patent GB-1080697-A (GB)
Title: Coherent radiation generator
IPC: H01S5/30
Filed: 1964-10-09
Abstract: 1,080,697. Semi-conductor laser devices. RADIO CORPORATION OF AMERICA. Oct. 9, 1964 [Oct. 30, 1963], No. 41428/64. Headings H1C and H1K. A device for producing coherent radiation comprises a body of semi-conductor material and a pair of electrodes to which an electric field is applied to produce the coherent radiation by recombination of ionized particles of the body, at least one of the electrodes being transparent to the coherent radiation to enable it to be transmitted out of the body. A semiconductor crystal 23 has a centre portion 25 of pure indium antimonide and two end portions 27, 29 of N-type indium antimonide functioning as electrodes to which an electric field is applied via metal rings 34, 35. In operation the body 23 is cooled by cryostat 41 until the centre portion is completely deionized and an electric field from battery 37 and signal generator 38 is then applied across the electrodes 27, 29 to form ionization of the atoms of the centre body 25, the recombination of the charge carriers producing stimulated emission. An optical resonator for the stimulated emission is formed by the plane parallel surfaces of the regions 27, 29 and a pair of plane parallel mirrors 31, 33 placed adjacent the end surfaces of the body 23. The mirrors may be spaced from the end surfaces. The output from the device is taken through end portion 27 and mirror 31. The circuit 36 may apply a constant bias voltage and a superimposed alternating, or pulsed or intermittent non - cyclical voltage. In the arrangement of Fig. 2 (not shown) the left-hand electrode is omitted and the centre and right portions are constituted of different semiconductor materials but have either a common cation or a common anion. Suitable pairs of materials are GaAs and GaP or InSb and GaSb or InSb and InAs.