baber/WOPTO huggingface dataset:
Patent GB-1232837-A (GB)
IPC: H01L47/02
Filed: 1968-11-22
Abstract: 1,232,837. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. 22 Nov., 1968 [22 Nov., 1967], No. 55514/68. Heading H1K. A semi-conductor device comprises, between two ohmic contacts at its ends, a plurality of active regions 22 of two-valley semi-conductor material capable of exhibiting a differential negative resistance in response to an applied electric field, each of said regions being connected to the next via a passive region 21, each active region satisfying the relation: where D 1  is the diffusion constant, V 01  is the carrier drift velocity, Á 1  is the lower energy band mobility, # is the dielectric permittivity, N K  is the carrier concentration, L K  is the length of each active region, q is the charge on the majority current carrier, and γ is the field rate of transfer of carriers from the lower energy band valley to the upper energy band valley. The passive regions 21 dissipate any space charge accumulation when an appropriate operating potential is applied across the contacts 17, 18 by causing a reduction in the electric field and by having a length which causes decay or dissipation of any space charge accumulation layers which enter them so that Gunn made oscillation will not occur. The device may be made of gallium arsenide and is used as a microwave amplifier. The semi-conductor material 19 may be formed as an epitaxial layer on a substrate 20, when the passive regions 21 are made by diffusion of appropriate impurities or by ion implantation.
Patent GB-1233193-A (GB)
IPC: C07D217/20
Filed: 1968-08-22
Abstract: 1,233,193. Morphinan derivatives. F. HOFFMANN-LA ROCHE & CO. A.G. 22 Aug., 1968 [25 Aug., 1967], No. 40125/68. Heading C2C. Morphinan derivatives of the formula in which R represents a C 1-8  alkyl, C 1-6  alkanoyl or optionally substituted benzoyl or naphthoyl group and R<SP>1</SP> represents a cyano, nitro, nitroso, C 1-8  alkylsulphonyl, an arylsulphonyl or the group -CO-[H or R<SP>2</SP>], where R<SP>2</SP> is C 1-8  alkyl, aryl, C 1-8  alkoxy, aryloxy, amino, C 1-8  alkylamino, arylamino, di - (C 1-8  alkyl)amino, diarylamino or N - C 1-8 alkyl - N - arylamino, or compounds in which R 1  is replaced by methyl or ethyl groups, are prepared by treating isoquinoline derivatives of the formulµ where R 1  is other than methyl or ethyl, with an acidic cyclising agent and, if desired, converting the resultant morphinan into a compound in which R 1  is methyl or ethyl by hydrolysis and subsequent methylation or ethylation or by reduction of the compounds in which R 1  is formyl or acetyl. Specified cyclising agents include organic and inorganic acids of which H 3 PO 4 , polyphosphoric acid and mixtures of H 3 PO 4  and H 2 SO 4  are preferred. Hydrolysis to obtain compounds in which R 1  is hydrogen may be effected with an acid or a base, e.g. NaOH, and the product methylated by reaction with formaldehyde and hydrogen over Raney Ni. Reduction of the N-formyl and N-acetyl derivatives can be achieved using LiAlH 4 . Optically active morphinans can be obtained by resolution of a racemic product or by using an optically active isoquinoline reactant. Examples relate to the preparation of N-formyl, N- methyl, N - acetyl, N - ethyl, N - ethoxycarbonyl, N - carbamoyl and N - benzoyl derivatives of 3-methoxy morphinan. 1 - (p - Methoxybenzyl) - 2 - acetyl - 1,2,3,4,5, 6,7,8 - octahydro - isoquinoline is prepared by N-acetylation using acetic anhydride. 1-(p- Methoxybenzyl) - 2 - ethoxycarbonyl - 1,2,3,4,5,6, 7,8 - octahydro - isoquinoline is obtained from the corresponding compound and ethyl chloroformate. 1-(p-Methoxybenzyl) - 2 - carbamoyl - 1,2,3,4,5,6,7,8 - octahydro-isoquinoline is obtained from the corresponding compound and urea. 1-(p-Methoxybenzyl)-2- benzoyl - 1,2,3,4,5,6,7,8 - octahydro - isoquinoline is prepared by acylation using benzoyl chloride.
Patent GB-1239666-A (GB)
IPC: F23G5/18
Filed: 1969-04-11
Abstract: 1,239,666. Incinerators. T. OKUMURA, and K. SUGANO. 11 April, 1969, No. 18603/69. Heading F4B. An incinerator comprises a combustion chamber 10 consisting of a main horizontal chamber 11 containing waste material to be incinerated and a vertical chamber 12 each chamber having a double walled structure. Combustion air from a supply pipe 30 is distributed via a header defined by a U-shaped partition 23 attached to the inner wall 21, to a series of spaced apart longitudinally extending air pre-heating chambers 28 from whence it is introduced into the chamber 11 through holes 29. The remaining space between the inner and outer walls 21, 22 not occupied by the air preheating chambers 28 is divided into chambers 27 filled with water for cooling the inner wall 21. The vertical chamber 12 is provided with a double walled construction similar to that described for chamber 11. Pre-heated air is introduced through holes 43 into the waste gas stream emerging from chamber 11 to react with this gas stream and to reduce the smoke content thereof leaving the incinerator through a stack 44.
Patent GB-1265748-A (GB)
IPC: A63B51/14
Filed: 1969-05-28
Abstract: 1,265,748. Racket stringing machine. COURT & SLOPE Inc. 28 May, 1969 [31 May, 1968], No. 27036/69. Heading A6D. A racket stringing machine comprising a racket holder and a string tension-holding assembly includes a clamp support 68 moveable relatively to the racket holder in directions parallel to the plane of a racket frame in the holder, a holding clamp 23 rotatable in the support about an axis perpendicular to the frame for clamping tensioned strings arranged either transversely or longitudinally of the racket frame and means for closing the clamp jaws and automatically locking the support 68 relative to the holder as the clamp jaws are closed. The clamp 23 is of self-locking toggle type and is operated by a handle 82' which on operation extends the toggle to raise and then close the clamp jaws 74, and to lower a thrust rod 87. Lowering of the thrust rod 87 inclines a locking lever 89 extending within the clamp support 68 so that it locks against upper and lower flanges of a spool 38 on which the support is rotatable. The racket holder comprises a turntable 12 rotatably mounted on a base (11), the turntable comprising a yoke 13 to the top of which a racket frame is clamped. The tensioning assembly comprises a clamp 16 mounted on a bar 19 which is attached to the piston rod (49) of a piston (48) Figure 2A (not shown) in a cylinder (18). When fluid is supplied to one end (44) of the cylinder (18), the piston (48) is pushed outwardly to move the bar 19 and clamp 16 for tensioning a string. Fluid pressure also presses the cylinder (18) inwardly thus causing a brake block 41 to lock the turntable support against rotation, the action of the cylinder on the brake block being assisted by actuator rods (52) biassed by springs (53).
Patent GB-1290163-A (GB)
IPC: D02G1/18
Filed: 1969-11-14
Abstract: 1290163 Textured yarns J P STEVENS & CO INC 14 Nov 1969 [15 Nov 1968] 55839/69 Headings D1F and D1W A process for producing a latent texturized yarn comprises passing a continuous multifilament thermoplastic yarn 1 wherein each of said filaments is a homofilament, over at least one heated surface 15 while maintaining the yarn under tension which permits shrinkage of individual filaments, and controlling the temperature of each heated surface and the extent of contact of the yarn therewith so that different shrinkage is effected in different filaments and convolutions or loops are formed in the filaments which undergo lesser shrinkage, and winding the yarn under sufficient tension to straighten the convolutions. The yarn 1 is preferably taken from a supply package 3, over tensioning rollers 13 to heated pins 15, 17 which are connected respectively to heat sources 19, 21. The speed of the yarn over the heated surfaces is controlled by rolls 25 and 27 positioned upstream of a conventional ring and traveller spinning machine. In a preferred embodiment, two yarns each having filaments which differ from filaments of the other yarn in chemical composition and shrinkage value, are simultaneously heat treated and plied during the winding step. The plied yarns are preferably polyethylene terephthalate multifilament yarn and polyhexamethylene adipamide multifilament yarn. The. differential shrinkage in the yarn is developed when a woven or knitted fabric containing the yarn is finished. Several numerical examples are given in the Specification.
Patent GB-1295299-A (GB)
IPC: F25B33/00
Filed: 1970-05-07
Abstract: 1295299 Refrigerating ELECTROLUX Ltd 7 May 1970 [27 May 1969] 22120/70 Heading F4U The rectifier in an absorption refrigeration apparatus comprises a series of annular constrictions formed in a flow path wherein raised absorption solution flows downwardly in countercurrent flow to refrigeration and absorption medium vapours. As described, the absorption refrigeration apparatus utilizes ammonia, hydrogen and water and comprises a boiler pipe 19 to which rich solution is raised through a pump pipe 15 from an absorber (not shown) through an outer conduit 14 of a liquid heat exchanger by the vapours of refrigerant and absorption medium formed in a pump space 13. The solution thereafter passes downwardly in a flow path 18 formed between the pipe 19 and a concentric inner pipe 17, the path 18 having a series of annular constrictions 21 to constitute a rectifier. The constrictions may be formed by spaced indentations 22 in the pipe 19 or pipe 17 which indentations may be of similar or varying radial widths. The refrigerant and absorption medium vapours are separated from the raised liquid at the upper end of the pipe 15 to pass upwardly through a cooler 16 formed as a water separator to a condenser (not shown). The boiler 10 utilizes heating cartridges.
Patent GB-1296956-A (GB)
IPC: G03B15/04
Filed: 1971-05-21
Abstract: 1296956 Photographic flash apparatus KABEL-UND METALLWERKE GUTEHOFFNUNGS HUTTE A G 21 May 1971 [23 May 1970] 16383/71 Heading G2A A device for connecting a flash-unit (4), Fig.1 (not shown) from a distance to the contact (5) of a flash-shoe (2) on a camera (1) comprises an electric lead 7 having a coupling 8, shaped like a flash-shoe, at one end, and a plug 9 for insertion into the camera shoe (2) at the other end. Alternatively, the foot (3) of the flash-unit (4) is detachable, and an extensible spring lead is mounted inside the unit.
Patent GB-1306101-A (GB)
IPC: C08G59/40
Filed: 1970-01-30
Abstract: 1306101 Epoxide-boron ester reaction products PPG INDUSTRIES Inc 30 Jan 1970 4468/70 Heading C3B A resinous composition comprises an ungelled reaction product of (I) an epoxy compound containing oxyalkylene groups: in which R is H or an alkyl radical and n and m are numbers, and (II) a boron ester substituted with at least one amino group. In preferred I, R is C 1-6  alkyl, m=1-4 and n=2-50. Examples of II are: (R 1  is C 1-6  alkyl, R 2  is H or C 1-6  alkyl, R 3  and R 4  are each alkylene or oxyalkylene). I may be prepared by reacting a polyepoxide with a monohydric alcohol containing a polyoxyalkylene group. Uses.-Electrophoretic coating (see Divisional Application 43930/72).
Patent GB-1313230-A (GB)
Title: Vertical multiple spindle machine tool
IPC: B23Q1/00
Filed: 1971-07-15
Abstract: 1313230 Work-tables MOSKOVSKY STANKOSTROITELNY ZAVOD "KRASNY PROLETARY" IMENT AI EFREMOVA 15 July 1971 33168/71 Heading B3B In a verticle multiplespindle machine tool in which a revolving work-table 1 carrying hydraulic clamping means A is mounted with a central aperture around a tapered portion B of a column 2, pressure oil is supplied to the clamping means A from a source 6 via passages 4 which have outlets 3 level with inlets 5, the inlets 5 being interconnected by a toroidal conduit 7 supplying the clamping means A, the machine tool being characterized in that the inlets 5 are circumferentially spaced through an equal angular pitch (e.g. eight inlets at 45 degrees spacing) while the outlets 3 are spaced through unequal angular pitches (e.g. four outlets unequally but progressively spaced) so that when an outlet 3 is coincident with an inlet 5 the remaining outlets are displaced relative to adjacent inlets at angles the magnitude of which are not equal and constitute a progression. At each of the stationary positions of the table only one outlet and inlet coincide to supply pressure oil, to minimize oil leakage and out of balance loads on the table 1. In successive fixed position of the table the inlets successively communicate with one outlet, while in the process of rotating the table from one fixed position to another, its inlets successively communicate with the remaining outlets.
Patent GB-1317947-A (GB)
Title: Sliding gauge with auxiliary elements
IPC: G01B3/20
Filed: 1970-07-08
Abstract: 1317947 Calliper gauges V CHO 8 July 1970 33195/70 Heading G1M Attachments are provided for the jaws of a calliper gauge. An auxiliary jaw 32 is carried by an extension 31 clamped to jaw 4 of the gauge. A sliding jaw extension 28 is clamped to the jaw 3 of the gauge.
Patent GB-1318035-A (GB)
Title: Fermentation of tea
IPC: A23F3/16
Filed: 1969-10-27
Abstract: 1318035 Treating green tea TENCO BROOKE BOND Ltd 22 Oct 1970 [27 Oct 1969] 52620/69 Heading A2B A process for the conversion of green tea into a liquor which simulates that obtained from black tea, comprises treating an aqueous extract of the green tea with an enzyme preparation comprising two or more enzymes other than those present in normal tea tissue, and in which the enzymes are in insoluble form. "Green tea" means freshly gathered tea leaf, tea leaf which has been dried before or after withering but without undergoing appreciable fermentation and tea leaf which has been heated before drying to inactivate enzymes therein. The preparation may comprise an enzyme obtained from potato or chicory, tea, bean, sycamore or apple callus tissue or microorganisms e.g. Cladosporium cladosporiodes or Alternaria tenuis, or an enzyme which has been converted into the insoluble form by chemical linkage to an matrix e.g. cellulose. Hydrogen peroxide or oxygen may be added to the extract. The liquor may be dried. The extract may be pumped through a column containing the enzymes.
Patent GB-1325458-A (GB)
Title: Single feed screw plasticizing machine
IPC: B29C48/605
Filed: 1970-08-10
Abstract: 1325458 Venting screw extrusion or injection machines T J B AKESSON 10 Aug 1970 38432/70 Heading B5A [Also in Division B1] Improved homogenization and reduced degradation of unplasticized polyvinyl chloride material in an extrusion or injection moulding machine, and reduced overloading of the single plasticizing screw 11 thereof, is obtained by regulating the feed of particulate material to incompletely fill a barrel feed opening 12, via the rotary valve 20 of an electromagnetically vibrated hopper 18 spaced away from the opening 12 on pillars 17, and at a location downstream of an uninterrupted initial portion of the screw-thread providing the screw-thread with openings 25 extending circumferentially and which prevent stagnation of material adhering to the screw by permitting the circulation thereof, and entrapped gases and air, from the completely filled upstream thread face 26 to the incompletely filled downstream thread face 27 along which the gases and air are vented to, and through, the incompletely filled opening 12. The barrel 10 is heated by elements 16. The openings 25 may terminate prior to the discharge end face of the screw 11, tipped at 32 and between which and a sieve plate 30 a reduction in extrusion pressure is minimized by a conical sieve plate configuration 31 leading to a perforate plate surface 33 of lesser area than that of the screw end face. In an alternative embodiment (not shown) the screw end face comprises a truncated cone of the same angle as the configuration 31 and terminating adjacent the surface 33 at a plane surface of the same diameter.
Patent GB-1334239-A (GB)
Title: Control circuit for a heated vehicle window
IPC: H05B3/84
Filed: 1971-04-20
Abstract: 1334239 Transistor circuits JOSEPH LUCAS (INDUSTRIES) Ltd 20 April 1971 [5 June 1970] 27203/70 Heading H3T [Also in Division H2] A circuit for supplying power to the heater 37 of a vehicle window comprises an oscillator and a delay network operable when the circuit is first switched on for preventing operation of the oscillator during the delay period so that the heater is initially energized at the maximum available power. When a switch 13 is closed, a transistor 24 is switched on causing a transistor 28 to conduct which in turn switches on a transistor 33 to supply power to the heater. A capacitor 21 in the delay network is charged via a diode 38 and resistors 17, 19 and after an interval of a few minutes causes a transistor 18 to conduct thereby switching off the transistors 24, 28, 33 and applying a reverse bias to the diode 38. The capacitor 21 therefore starts to discharge causing the transistor 24 to be switched on again. The heater is supplied with pulses having a mark space ratio of one to three following the supply of maximum power during the delay period.
Patent GB-1334873-A (GB)
Title: Clips
IPC: F16B45/00
Filed: 1970-08-26
Abstract: 1334873 Clips H FULLAGAR 11 Aug 1971 [26 Aug 1970] 41095/70 Heading E2A A clip comprises two identical, rigid, planar members 10 each having a first end region 25 and a second end region 26, said first end regions of said members being slidably connected to second end regions, and an aperture 11 opening to one edge. The members are slidable relative to each other only in one linear direction between a first condition in which a pole can be inserted into the apertures and a second condition in which removal of the pole from the apertures is prevented. As shown the two members are connected together by headed pins 19 to which members 23 can be secured to prevent removal of the pins. Each member is provided with a hole 24 for receiving a rope, the ropes holding the members in the condition in which the pole cannot be removed. The clip is intended for attaching a spinnaker pole to a mast. A hairpin spring may urge the members to the second condition thereof.
Patent GB-1342729-A (GB)
IPC: A62C2/24
Filed: 1971-04-19
Abstract: 1342729 Door locking HOOVER Ltd 19 April 1971 [3 March 1970] 10123/70 Heading E2A [Also in Division F2J] A thermoresponsive mechanism comprises a movable member 12, an interlock arranged in one position to prevent or limit movement of the member, temperature sensitive and current generating means arranged to produce a current in an electro-magnetic device, the magnetic force produced by the electro-magnetic device by the current being capable of maintaining the interlock in the said one position. As shown, a door bolt 12, e.g. a door on a rotating mechanism such as a washing machine or spin drier, is movable between locking and retracted positions by a link 14 pivoted on the bolt and having connected thereto an actuating knob 13 carrying a pin 40 co-operating with a guide slot 41. A bell-crank lever 25 is connected by arm 28 to the disc 30 of the electro-magnet 33 the coil of which is connected to a copper-constantin thermocouple. In operation, when the machine is operating, the thermocouple is at a sufficiently high temperature to cause a current to flow to the coil 35 such that the spring 29 does not overcome the magnetic pull on the plate 30 whereby the arm 26 of the lever is maintained in a notch 27 in the bolt 12. Upon ceasation of current flow in the thermocouple the plate 30 is freed to allow the lever to rotate clockwise under the influence of a spring 29 and to free the arm 26 from the notch 27 when the link 14 abuts the stop 20 and the bolt can be released.
Patent GB-1355522-A (GB)
Title: Shopping trolleys
IPC: B62B1/14
Filed: 1971-01-22
Abstract: 1355522 Shopping trolleys NORLAND GAZELLE (TRAVEL GOODS) Ltd 24 April 1972 [22 Jan 1971] 2957/71 Heading B7B A removable shopping bag B is supported on a wheeled frame 1 having a U-shaped frame member 4 and a handle 5. A spigot 7 projects from a cross-piece 6 into engagement with an aperture in a tab T of the bag and is retained by a pivoted locking member 9. In another embodiment, Fig. 3 (not shown), the locking member carrying a spigot (7) is slidably mounted on the handle.
Patent ID-28877-A (ID)
Inventor: BAYER CHRISTIAN
IPC: B65D83/44
Filed: 1999-05-20
Abstract: An aerosol powder valve has a valve housing, a valve body with an upstanding valve stem, radial stem orifices, and an annular tight-fitting gasket with a central opening forming the sole seal for the stem orifices. The valve stem is straight-sided above and below the stem orifices and is characterized by the absence of a gasket-receiving groove encircling the stem. The valve body has a plurality of narrow splines spaced around its periphery, the top spline surfaces being of minimal area in relation to the area of the circumferential spaces between the tops of the splines. The spline top surfaces abut the gasket underside when the valve is closed, and the minimal top spline areas prevent powder build-up to adversely affect full sealing of the valve. Other lateral surfaces on the valve body near the gasket are eliminated to likewise avoid powder build-up thereon. The spline sides may diverge outwardly and downwardly from the spline top surfaces. The gasket sealing surface surrounding the valve stem has a lubricant, i.e., silicone, baked thereon. The stem orifices are positioned vertically over circumferential spaces between splines.
Patent ID-29646-A (ID)
Inventor: STEFFEN KRILL
IPC: C07D311/04
Filed: 2001-03-07
Abstract: Process for the production of alpha-tocopherol acetate in a recycling process by condensation of trimethylhydroquinone diesters and isophytol in the presence of a catalyst system consisting of a zinc halide and of an aqueous protonic acid and optionally of an elemental metal in a polar solvent/water mixture which is extractable or miscible with water and subsequent recycling of the catalyst system.
Patent IL-105577-A (IL)
Title: Fungicidal compositions containing 3-hydroxy- 5-methylisoxazole or salts thereof, methods for the preparation thereof and their use
IPC: A01N43/80
Filed: 1993-04-30
Abstract: A combination of 3-hydroxy-5-methylisoxazole has with an antimicrobial agent has good agricultural fungicidal activity which lasts longer than 3-hydroxy-5-methylisoxazole alone. The dihydrate of the calcium salt of 3-hydroxy-5-methylisoxazole has advantages over the free 3-hydroxy-5-methylisoxazole, other salts and the anhydrous compound.
Patent IL-106773-A (IL)
Title: Endoscopic tissue manipulator with expandable frame
IPC: A61B17/02
Filed: 1993-08-23
Abstract: A tissue manipulator (50) is provided which is insertable through an endoscopic tube to enable a surgeon to manipulate tissue inside a body cavity. The endoscopic tissue manipulator includes an expandable tissue manipulating frame (80) adapted to expand transversely through a longitudinal slot (72) in a support tube (70) to provide a spatula-shaped platform which can be manipulated by rotation of the support tube about its longitudinal axis to engage and displace large body organs away from a desired surgical site in a body cavity. The frame consists of a plurality of flexible frame members or wires (81) adapted to flex laterally outward through the longitudinal slot in the support tube into a bow-shaped configuration overlapping the other frame members or wires of the spatula-shaped platform. The instrument can be provided with a single tissue manipulating frame or a pair of frames which are expandable through separate longitudinal slots in the support tube to provide a pair of spatula-shaped platforms to engage the tissue. <IMAGE>