baber/WOPTO huggingface dataset:
Patent GB-1320044-A (GB)
Title: Gallium phosphide electroluminescent light sources
IPC: H01L21/208
Filed: 1970-08-04
Abstract: 1320044 Electroluminescence WESTERN ELECTRIC CO Inc 4 Aug 1970 [8 Aug 1969] 55456/72 Divided out of 1320043 Heading C4S An electroluminescent GaP device, preferably prepared in accordance with the method disclosed in the parent Specification, has at least one P-N junction which, within the first 10 Á of the P side of said P-N junction contains at least an average concentration of between 1 x 10<SP>17</SP>/ c.c. and 9 x 10<SP>17</SP>/c.c. of O donors and between 2 x 10<SP>17</SP>/c.c. and 1 x 10<SP>18</SP>/c.c. of Zn and/or Cd as acceptor, e.g. 1 x 10<SP>17</SP> to 5 x 10<SP>17</SP>/c.c. of O and 3 x 10<SP>17</SP> to 1 x 10<SP>18</SP>/c.c. of Zn. The material away from the P-N junction preferably has a low free carrier concentration so that light absorption is small, isolectronic materials (e.g. GaAs) may be included in the material not as donors or acceptors but influencing properties such as emitted light wavelength and the device may be encapsulated by a dome of high refractive index material and the device provided with alloy bonded ohmic contacts. 0À3 x 10<SP>18</SP> to 2 x 10<SP>18</SP>/c.c. of Te in the first 10 Á of the N side may be included or may be one or more of S, Se, Si, Sn and Te. Other donor or acceptor dopants may be included. GaP-GaAs (up to 60% GaAs) mixed crystals are instanced and other disclosures and method of preparation are generally as in the parent Specification.
Patent GB-1392939-A (GB)
Title: Tents
IPC: E04H15/00
Filed: 1971-11-30
Abstract: 1392939 Tents W H J FAGG & SON LTD 28 Nov 1972 [30 Nov 1971] 55584/71 Heading E1A A tent comprises an upright pole 12 to which two cantilever arms 20 are secured by means of a socketed connector 18, the canopy consisting of a triangular roof section 26, a triangular rear wall section 28 and two rectangular side wall sections 24. The arms 20 are received in corner pockets 22 formed in the canopy which is also provided with eyelets 30. The pole has a spiked end 14 and a foot plate 16.
Patent GB-1360075-A (GB)
Title: Transducing head mount apparatus
IPC: G11B5/60
Filed: 1971-12-01
Abstract: 1360075 Mounting flying heads RCA CORPORATION 1 Dec 1971 [7 Dec 1970] 55712/71 Heading G5R A resilient mount 2 for a flying head includes a transducer-mounting portion 6 connected to a frame 4 by two resilient, generally Z-shaped elongated members 12, 14 extending between one end 7 of the portion 6 and opposite frame portions 8, 10, and by an elongated resilient member 22 extending from the opposite end 20 of the position 6, the members 12, 14 and 22 forming a parallelogram linkage, Fig. 3 (not shown). A head core 36, Fig. 2, is mounted through a slot in the portion 6 and through a slot 42 of a pad member 44 which is secured to the portion 6 to render the portion 6 rigid, the transducing gap 40 being flush with the pad surface 46. The mount 2 is made from a single piece of non-magnetic material such as beryllium-copper or a plastics and is secured to members 32, 34. The pad 44 may be of non-magnetic ceramic.
Patent GB-1483589-A (GB)
Title: Fish hook extractor
IPC: A01K97/18
Filed: 1973-11-30
Abstract: 1483589 Fish hook extractor C INGRAMS 28 Feb 1975 [30 Nov 1973] 55714/73 Heading A1A A fish hook extractor comprises a handle 11 of plastics material and a coil spring 10 of semi-rigid construction, frictionally held on a short projection 12 of handle 11. The embodiment of Figure 4 has a coil spring 15 frictionally mounted in one end of a hollow handle 16 within which a plastics plunger 17 is moveable against a compression spring 21 lying between projections on the plunger and the handle. An arm 24 on plunger 17 moves within a slot 25 which has a recess extending sideways thereof and permitting the plunger to be held in its depressed position. Plunger 17 includes a tapered spike 18 preferably of rubber at the end thereof adjacent the spring 15 and an enlarged head 19 at its other end. In use the line is threaded between the first and second coils of the free end of the spring 10, 15 and the extractor rotated to wind line onto the spring. The extractor is pushed along the line until the spring,engages the hook. The plunger 18 of the embodiment of Figure 4 is depressed to the position indicated by (18') in Fig. 3 (not shown) when the extractor reaches the hook and it is stated that this holds the hook more firmly for extraction, with its barb engaged between the turns of spring 15.
Patent GB-1477478-A (GB)
Title: Liquid crystal display
IPC: G02F1/139
Filed: 1974-12-11
Abstract: 1477478 Controlling light DEFENCE SECRETARY OF STATE FOR 11 Dec 1974 [30 Nov 1973] 55744/73 Heading G2F A display device comprises, in order, a linear polarizer, a nematic "twist" cell with shaped electrodes for producing rotation of the plane of incident polarized light by 35-55 degrees, and preferably 45 degrees, a quarter wave plate and a reflector of the type which retains a substantial amount of the incident polarization. The preferred axis of the polarizer is parallel or perpendicular to the nematic alignment at the nearer side of the cell and is parallel perpendicular or at 45 degrees to the principal, fast or slow, axis of the quarter wave plate. The reflector may be a mirror or a coating of aluminium paint. As shown the electrodes are of the seven segment, figure of eight, type for alphanumeric display. Reference has been directed by the Comptroller to Specification 1390925.
Patent GB-1184449-A (GB)
Title: Positioning Mechanism for a Rotary Electric Switch
IPC: H01H21/50
Filed: 1967-12-08
Abstract: 1,184,449. Mechanical switches. GEMCO ELECTRIC CO. 8 Dec., 1967 [12 Dec., 1966], No. 56000/67. Heading H1N. In a positioning detent mechanism for a rotary spindle 210A, Fig. 8, of an electric switch, a rotor 326 is rotatably supported by lobes 316, 318, 320 in a bore of a detent housing and carries spring-loaded balls 342 for detent engagement between the lobes. The lobes 316, 318 have greater arcuate lengths and may be engaged by a ball detent selectively inserted in alternative recesses 338, 340, whereby the switch may have either 30 degrees or 60 degrees between the detent locations. Resilient bias for the ball 342 is provided by arcuate leaf springs 334, 336 located between a hub 328 and notched recesses 344, 346 in the rotor 326. Radially projecting frangible tabs 348, Fig. 7, are provided on the rotor for engagement with replaceable stops 1, 2 on the housing, whereby the required limits of rotation may be selected. Projections 304, 306 on the housing provide for relative location on other housing parts. A reversible retractive spring unit 402, Fig. 4, for use in combination with the detent device forms the subject of Specification 1,184,450 and comprises a freely rotatable rotor 430, Fig. 4, having a circumferential slot 442 for a lostmotion connection to a pin 438 on a plate 428 keyed on the spindle 210. The plate 428 is yieldingly held against rotation by tension springs 452, 454, whereby the spindle is at first freely rotatable until the lost motion has been taken up, further movement being resisted by the springs 452, 454. Motion of the rotor 430 is selectively limited by frangible stops 446, 448, 450 engageable in a slot 420. A pair of rotors 430 may be arranged back-to-back for selectively resisting motion of the spindle in both directions of rotation. An edge-cam actuated switch actuated by the rotary spindle is not described.
Patent GB-1209010-A (GB)
Title: Process for the disproportionation of olefinically unsaturated compounds
Inventor: ALKEMA HENK JOHAN
IPC: B01J23/30
Filed: 1969-06-09
Abstract: 1,209,010. Disproportionating olefins. SHELL INTERNATIONALE. RESEARCH MAATSCHAPPIJ N.V. 9 June, 1969, No. 56128/69. Divided out of 1,208,038. Addition to 1,208,038. Heading C5E. Olefinically unsaturated hydrocarbons are disproportionated by contact with a solid catalyst comprising (a) an inorganic salt of one or more of W, Mo, Ti, Zr, Nb, Ta and Re (other than tungsten, sulphide or molybdenum sulphide), (b) an inorganic-alkali metal compound, and (c) a carrier having a surface area of at least 5 sq. m./gm. and comprising one or more solid oxides and/or phosphates of a Group II A , III A , IV A  and IV B  element (Mendeleef). Suitable catalyst components include (a) phosphates, sulphates or halides, particularly MoCl 5  or WCl 6 , (b) lithium oxide, and (c) aluminium phosphate, gamma-alumina and silica-alumina. The catalyst may also contain an alkylaluminium compound, including halides, but preferably a trialkyl aluminium. Hydrogen may be present. Examples describe the conversion of 2-pentenes to 2-butene and 3-hexene, and of propylene to ethylene and butene.
Patent GB-1324342-A (GB)
Title: Provision of identifying characters on a workpiece
IPC: G06V30/224
Filed: 1971-12-03
Abstract: 1324342 Character recognition INTERNATIONAL BUSINESS MACHINES CORP 3 Dec 1971 [14 Jan 1971] 56161/71 Heading G4R [Also in Division G2] Symbols on a workpiece are each represented by a group of parallel reflective strips formed by deformation of the surface of the workpiece. The symbols are readable both by man and by machine. The angle that the strips of a symbol make with a reference direction is unique to that symbol. When illuminated by a parallel beam of light the light is reflected by the strips and, dependent upon the angle of the strips, falls upon a corresponding one of a number of transducers arranged on a circle coaxial with the axis of the incident light beam, Fig. 4 (not shown). The reflective strips may be flat, Fig. 2A (not shown), and formed by milling, polishing, or embossing. Alternatively they may be convex, Fig. 2C (not shown). In this case the strips are made by directing a laser or electron beam at a mask covering the workpiece. The workpiece melts along the unmasked parts, the beam then being switched off. On cooling, the convex strips remain. If the beam is not switched off the unmasked parts evaporate, so that, upon subsequent cooling, concave reflective strips are formed, Fig. 2B (not shown). Instead of using a mask the symbol may be impressed on the surface by suitably deflecting the beam.
Patent GB-1199529-A (GB)
Title: Display Systems.
IPC: G06F3/038
Filed: 1968-11-29
Abstract: 1,199,529. Photo-electric control of data displays. INTERNATIONAL BUSINESS MACHINES CORP. Nov.29, 1968 [Jan.12, 1968], No.56893/68. Heading G1A. A display system comprises means for illuminating a display screen with a light image linearly polarized in a first direction, means for directing on to an area of said screen a light beam linearly polarized in a second direction and polarizationsensitive means responsive to the coincidence of both said image and said light beam in said area for producing an optical control signal. Alphanumeric characters are selected from a matrix under computer control as described in U.S. Patent No. RE. 26,170 and deflected to desired points on a display screen 20 by a computer controlled deflector 14. The character is transmitted in plane polarized light and in order to indicate to the computer a particular point 28 on the display an operator directs a beam of orthogonally polarized light 24 at the point. Reflected and transmitted light from the point 28 is deflected by a beamsplitter 16 to an optical AND gate 42 of the type disclosed in Specification 1,199,530 which gives out light through analyzer 58 only when the beams 10 and 24 are directed to the same point on the display screen. A photo-detector 62 picks-up the optical control pulse to effect erasure of a character from memory 32 or writing in of a character keyed in at 66.
Patent GB-1359278-A (GB)
Title: 2- -thioxanthenyl- -alkanoic acids their preparation and pharma ceutical compositions containing them
IPC: C07D335/12
Filed: 1972-12-12
Abstract: 1359278 2 - (Thioxanthanyl) - alkanoic acids YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd 12 Dec 1972 57601/72 Heading C2C Novel compounds I: in which X is hydrogen or halogen, R 1  and R 2  are hydrogen or C 1-4  alkyl and Y is S or SO 2  and their salts, are prepared by hydrolysing a functional derivative of the above acid (preferably the ester nitrile, amido, imino-ether or thio-carbonyl-morpholino). Compounds prepared are 2-(thioxanthen-2-yl)-acetic-, propionic-, butyric and iso-butyric acids; 2-(7-chlorothioxanthen-2-yl)-propionic acid; or 2-(thioxanthan- 2-yl)-propionic acid-10,10-dioxide. The ethyl ester of the 2-propionic acids of Formula I are prepared by reduction of a xanthone to a compound III which is acetylated, reduced to the alcohol and brominated to form compound VI which is reacted with potassium or cuprous cyanide in dimethylsulphoxide and the nitrile formed is hydrolysed with ethanol and hydrochloric acid. Compounds (I) are anti-inflammatory agents and analgesics and form with a carrier or diluent a pharmaceutical composition which may be administered orally or parenterally or topically.
Patent GB-1359374-A (GB)
Title: Cycloaliphatic penicilins
IPC: C07D499/66
Filed: 1971-12-13
Abstract: 1359374 Amidinoureido-penicillins AMERICAN HOME PRODUCTS CORP 13 Dec 1971 [12 Aug 1971] 57730/71 Headings C2A and C2C Novel amidinoureido cycloaliphatic penicillins having the formula (I): and salts thereof, wherein R<SP>1</SP> is a C 4  to C 10  cycloalkyl radical, or a cyclohexenyl or cyclohexadienyl radical, are prepared by reacting an α-amino penicillin of formula (III): wherein R<SP>1</SP> is as defined above, or a salt thereof, with an amidinocarbamoylating agent. The preferred amidinocarbamoylating agent is an unstable azide of formula prepared in situ in the reaction mixture by reacting amidinosemicarbazide or a salt thereof with a nitrite (e.g. NaNO 2 ), about 1 to 3 moles of amidinosemicarbazide per mole of the compound (III) being used and the reaction being performed in the presence of water and a base such as triethylamine, pyridine or N-methylpiperidine. The inventive compounds are usually recovered in a hydrated form (e.g. the mono-, di- or tri-hydrate). The starting penicillins (III) may be prepared by a conventional N-acylation of 6-aminopenicillanic acid (6-APA). For example: (i) 6-APA in basic aqueous solution is N-acylated with the acid chloride hydrochloride of D-α- amino 1,4-cyclohexadiene-1-acetic acid to give 6 - [D - 2 - amino - 2 - (1,4 - cyclohexadien - 1- yl) acetamido] penicillanic acid, and (ii) 6-APA is N-acylated with the acid chloride hydrochloride of D-α-aminocyclohexane-acetic acid in anhydrous methylene chloride in the presence of N,O-bis-(trimethsilyl) acetamide followed by aqueous hydrolysis of the reaction mixture to give 6 - (D - 2 - amino - 2 - cyclohexylacetamido)- penicillanic acid. 6-[D-2-amino-2-(1-cyclohexen-1-yl) acetamido] penicillanic acid is prepared by catalytic hydrogenation (Pd/C) of the corresponding 1,4 - cyclohexadiene - 1 - yl compound prepared as described in (i) above. The starting materials (III) are converted to the inventive penicillins (I) by dissolution in ice cold water containing one of the aforesaid bases, and then adding an ice cold aqueous solution of amidinosemicarbazide dihydrochloride and NaNO 2 . The required product crystallizes from the reaction mixture, if necessary after concentration and adjusting the pH to the isoelectric point of the product. The acid chloride hydrochlorides of D-α-aminocyclohexane-acetic acid and D-α-amino-1,4-cyclohexadiene-1-acetic acid are prepared by treatment of the said acids with PCl 5  under anhydrous conditions in the presence of HCl. The penicillins (I) may be dissolved or suspended in an inert liquid carrier for use as disinfecting compositions, or admixed with a pharmaceutical carrier or diluent to provide pharmaceutical antibiotic compositions.
Patent GB-1245434-A (GB)
Title: Improvements in waste conversion process
Inventor: BELLAMY WINTHROP DEXTER
IPC: A23K1/00
Filed: 1968-12-05
Abstract: 1,245,434. Animal food. GENERAL ELECTRIC CO. 5 Dec., 1968 [31 Jan., 1968], No. 57872/68. Heading A2B. [Also in Divisions Cl, C3 and C6]  Organic waste material suspended in a liquid medium is mixed with a culture of thermophilic aerobic micro-organisms capable of digesting the cellulose, the pH is adjusted (if necessary) to be between 5.5 and 8.5, an oxygenating gas (air) is introduced so as to maintain the dissolved oxygen content at at least 0.3 mg. per litre and the temperature is maintained in the range 45-80C, whereby the thermophilic aerobic micro-organisms multiply (whereas pathogenic micro-organisms are destroyed at these temperatures) and digest the organic waste material to produce cellular proteinaceous material containing some nucleic acids and carbohydrates. The product recovered from the culture broth may be pasteurized and used as a nitrogen and phosphorus containing high protein animal fodder. The organic waste material may be the sludge from a primary or secondary sewage treatment plant, slaughter house sewage effluent, dairy wastes, phytoplankton and zoo plankton.
Patent GB-1279873-A (GB)
Title: Weapon training apparatus
Inventor: LENNERYD ERIK GORAN
IPC: F41G3/26
Filed: 1969-12-01
Abstract: 1279873 Gunnery training apparatus SAAB. SCANIAAB 1 Dec 1969 [3 Dec 1968] 58496/69 Heading F3C A training apparatus for a fire controller of weapons comprises a screen 2 for receiving or on which is, a panoramic picture 3 of a landscape, and a projector 6 capable of projecting an image on to the screen, the image corresponding to the explosion of an imaginary shell fired under the direction of the fire controller. A signal transducer produces an electrical signal proportional to the vertical component of the trajectory of the imaginary projectile with reference to the plane of the panoramic picture and a memory 11  is provided for storing information of the topography of the landscape and including means for producing electric signals corresponding to the variations of altitude of the ground in the firing direction and in the direction that the fire controller observes the explosion point on the screen. A comparator 12 compares the trajectory signal with the ground or a modified ground signal in the firing direction depending upon whether a ground or air explosion is required to give the point of explosion and also the ground or modified ground signal at the point of explosion is compared with the highest value of ground signal in the direction of observation up to the explosion point such that if the ground or modified ground signal at the explosion point is at least as great as the highest value above mentioned the projector 6 projects an explosion image on the screen 2. The projector is also able to project a scrap impact image after an air explosion. The explosion image projector 6 may be mounted for universal movement in which movement it is driven by two motors (Fig. 4, not shown). The projector 6 may be provided with a telephoto lens to afford an impression of variable distances of explosion points. If the explosion point is obscured from the controller 5 by the terrain a smoke signal rather than an explosion signal may be projected if the obscuring terrain is not too high. In practice the terrain is split up with a series of sectors radiating from the controller position (Fig. 5, not shown) and the information concerning each of these sectors stored in the memory 11. The memory 11 may comprise a series of monitored cams or a modulated tape recording. A random spread of shots may be effected to simulate more naturally actual field firing conditions. Loud speakers may be provided for simulating the sound of the explosion an alternator being incorporated in the speaker system to give the impression of distance (Figs. 2, 3, not shown).
Patent GB-1368388-A (GB)
Title: Method of making a pipe thread protector
IPC: B21D51/04
Filed: 1972-12-20
Abstract: 1368388 Making pipe thread protectors ALCO STANDARD CORP 20 Dec 1972 [22 Dec 1971] 58817/72 Heading B3A [Also in Division B8] A method of making a double-walled thread protector 8 for the threaded end of a pipe member (70), Fig. 12 (not shown), comprises deep-drawing a first metal blank (1), Fig. 1 (not shown) and forming it into a cylindrical shape (3), Figs. 2, 3 (not shown), having an open end, a skirt wall and a closed end, punching out the closed end to provide it with an inwardly-directed flange 4i to produce a first part 4, deep drawing a second metal blank (5), Fig. 6 (not shown), to form a cylindrical shape (6), Fig. 7 (not shown), having a closed end, a skirt wall and an open end, forming an outwardly-curved flange (6a), Fig. 8 (not shown), to produce a second part 7, forming threads 4f, 4g along the skirt wall of one of the shaped parts, assembling the parts together with the flanges 4i, (6a) in contact, maintaining the skirt walls in spacedapart relation, and welding along the flanges to form an integral structure. Flanged part (3) is placed over a ribbed roll (16) which is revolved while a co-operating roll (18) moves towards and away from the roll (16). This allows periods of complementary interfitting of respective banded portions (16a)-(16e) and (18a-18e). The banded part 4 is then placed in a piercing die (19), Fig. 4 (not shown), and a portion 4h is punched out to leave the flange 4i. Threads 4f, 4g are then formed using a tapping head (31), Fig. 5 (not shown), of a lathe (25). Prior to the assembling of the two parts 4, 7, the second part 7 can be trimmed using a lathe trimming tool (52) to remove any surplus material from the flange (6a). Once assembled in a jig or lathe (55), Fig. 9 (not shown), the parts can be welded together using an oxyacetylene torch or an electrode (65), relative rotation occurring during welding between the torch or electrode and the assembled parts. A single drawing operation may replace the two drawing operations involved for the forming of each part 3, 7. The protector is made out of material suitable for operation at cryogenic temperatures, e.g. steel.
Patent GB-1336040-A (GB)
Title: Printing sheets in sheet-fed rotary printing presses
IPC: B41F13/18
Filed: 1971-12-17
Abstract: 1336040 Rotary printing machines KOENIG & BAUER AG 17 Dec 1971 [18 Dec 1970] 58872/71 Heading B6C In a multicolour offset litho rotary sheet fed machine a common impression cylinder 1 coacts with two offset units 2, 4 and 3, 5, and the diameter of the impression cylinder is twice the diameter of the equal diametered blanket cylinders 2 and 3. The coloured prints are removed from the machine via a chain delivery arrangement 9, 10, 11. In using the machine care is taken to ensure that the distance between the light of members 1 and 2 and the light of members 1 and 10 is greater than the length of the sheet being printed.
Patent GB-1304786-A (GB)
IPC: C07F9/44
Filed: 1970-12-14
Abstract: 1304786 2 - Chloroethyl phosphonic acid diamides GAF CORP 14 Dec 1970 [23 Dec 1969] 59368/70 Heading C2P [Also in Division C1] The invention comprises compounds of the Formula I where R 1  is C 3-8  cycloalkyl and R 2  is hydrogen or C 3-8  cycloalkyl, or R 1  and R 2  together with the N atom attached thereto form a morpholine, piperidine, pyrrolidine or piperazine ring or a C 1-5  alkyl-substituted derivative thereof, which may be prepared by reacting a 2-chloroethylphosphonyl dihalide with a suitable amine in the presence of an acid acceptor, or by reacting an excess of a suitable amine with a 2-chloroethyl dihalophosphite. The compounds of Formula I are used as plant growth regulators.
Patent GB-1249049-A (GB)
Title: Method for affixing apertured tab to a container
IPC: B21D51/38
Filed: 1969-12-05
Abstract: 1,249,049. Portable containers. ALUMINUM CO. OF AMERICA. 5 Dec., 1969 [23 Dec., 1968], No. 59448/69. Heading B8D. [Also in Division B3] An aluminium or aluminium alloy container end closure adapted to be riveted to a tear tab (see Division B3) has a thickness of 0À008- 0À016 inch and a protective coating on its undersurface of vinyl, epoxy or epoxy phenolic resin, the latter having been baked at 400‹ F. for 20 minutes.