baber/WOPTO huggingface dataset:
Patent GB-1380408-A (GB)
Title: Acousto-optical light deflectors
IPC: G02F1/33
Filed: 1971-11-10
Abstract: 1380408 Deflecting light SIEMENS AG 10 Nov 1971 [15 Dec 1970] 52122/71 Heading H4F Each of a plurality of adjacent mutually inclined piezo-electric transducers 2-4 mounted on a crystal body 1 is connected across a variable frequency oscillator 5 and is designed for a different one of a set of adjacent frequency ranges, so that at a particular frequency f the corresponding transducer is preferentially actuated and an incident light beam 7 interacts with the corresponding acoustic wave at the appropriate Bragg angle and undergoes up to 100% diffraction. Preferably the adjacent frequency ranges are chosen so that the deflection efficiency versus frequency curves cross at the - 3 dB points. The transducers may be attached to the body 1 by a cold pressing operation in vacuo, indium or thallium being interposed.
Patent GB-1377057-A (GB)
Title: Data storage systems
IPC: G11B20/16
Filed: 1970-11-05
Abstract: 1377057 Digital data storage SPERRY RAND Ltd 1 Nov 1971 F5 Nov 1970] 52652/70 Heading G4C Each track of a record medium, e.g. a magnetic drum, has a read-out circuit comprising a shiftregister 6 to which data read out is fed and from which data is extracted at a predetermined time following commencement of a data segment. In the embodiment shown, a predetermined number, e.g. six, pulses are applied to gate 12 following the start of a drum segment, gate 12 only being opened when the actual start of the data is detected. Counter 11 causes selector 8 to track the start pulse through the shift register 6 until no more pulses are supplied to gate 12, whereupon the data pulses appear sequentially at the active input to the selector. The counts reached by counters 11 depend on the amount of skew in the corresponding tracks so that the selectors together provide a skew corrected output. The data pulses are switched through a ¢-bit delay 5 if they are found to coincide with the clock phase used to shift the registers 6.
Patent GB-1344279-A (GB)
Title: Araliphatic trinuclear hydrocarbons
IPC: C07C1/26
Filed: 1971-11-12
Abstract: 1344279 Trinuclear hydrocarbons BAYER AG 12 Nov 1971 [13 Nov 1970] 52668/71 Heading C5E The invention comprises hydrocarbons of the formula where R 1  to R 5  (same or different) are each H, CH 3  or C 2 H 5  and the bonds to ring A are m or p to each other. These compounds may be made by reacting m- or p-di-(α-chloroisopropyl)-benzene with excess at - 50‹ to +50‹ C. in presence of a Friedel- Crafts catalyst. Benzene, toluene, xylenes, ethylbenzene, pseudocumene and mesitylene are specified hydrocarbons. The reaction may be carried out continuously in homogeneous solution by mixing, in a cooled co-current tubular reactor, hydrocarbon to be alkylated containing the catalyst with a solution of the dihalide in the same hydrocarbon. The catalyst may be AlCl 3  (3-30 g. per g. mol. of the dihalide). Examples describe the preparation of; α,α<SP>1</SP> - di - (p - methylphenyl) diisopropyl benzenes; α,α<SP>1</SP> - di - (3,4 - dimethylphenyl) diisopropyl benzenes; di-(p-ethylphenyl)-p-diisopropyl benzene; di-(2,4-dimethylphenyl)-p-diisopropyl benzene and diphenyl-p-diisopropyl benzene.
Patent GB-1244262-A (GB)
Title: Process for preparing methacrylic acid esters
IPC: B01J31/00
Filed: 1969-10-29
Abstract: 1,244,262. Methacrylic acid esters. IDEMITSU KOSAN CO. Ltd. 29 Oct., 1969 [29 Oct., 1968], No. 52929/69. Heading C2C. Methacrylic acid esters are prepared by reacting a mixture of methylacetylene and allene, carbon monoxide and an alcohol in the presence of nickel carbonyl and an organic carb - oxylic acid as a catalyst. The methylacetylene/ allene mixture is obtained by the pyrolysis of propylene. An inert diluent may be present, and the organic carboxylic acids may be methacrylic and crotonic acids, and in a modification the acids. are formed by the presence of water. Elevated temperatures 100-200‹ C. and pressures 10-60 atmospheres are preferred and the process may be continuous. Crotonates, e.g. methyl, are produced as by-products.
Patent GB-1392478-A (GB)
Title: Mould for a concrete step unit
IPC: B28B7/22
Filed: 1972-11-16
Abstract: 1392478 Moulding a concrete step unit MARLEY BUILDINGS Ltd 13 Sept 1973 [16 Nov 1972] 52971/72 Heading B5A [Also in Division E1] A mould for forming a concrete step unit comprises two elongate side walls 1, 2 connected together (detachably, permanently or hinged) along a longitudinal edge to define a V-shaped trough, the ends of the trough being closed by end plates 4 at least one of which is slidable along the trough to adjust its length. Bars 11 and 14 are secured by bolts 12 one on each side wall 1, 2 at an adjustable height, to form complementary birds mouth and chamfered edges to the step unit. The or each movable end plate 4 is recessed to slide over the bars 11, 14 and to allow for their height adjustment, any open recess being closed by cover-plates 19, 20. The end plate 4 having a reinforcing rib 5 is attached to a clamping bar 8 that embraces lips 9, 10 on the side plates 1, 2 and is locked in position by bolts 26. Blocks 21 adjacent each end define stooling recesses in the step unit, and slide along the birds mouth bar 11; additional blocks (not shown) define baluster recesses. Concrete is cast, trowelled and hardened with the mould in the position of Fig. 3. The mould is then pivoted about the trough base in both directions so that the end plates and sides are removed, when uppermost, from the cast unit. Finally, the blocks 21 and cover-plates 19, 20 are removed.
Patent GB-1452131-A (GB)
Title: Carrier provided with compartments
IPC: B65D5/49
Filed: 1973-11-15
Abstract: 1452131 Article carriers ASHTON CONTAINERS Ltd 9 Oct 1974 [15 Nov 1973] 53018/73 Heading B8P A carrier, e.g. for bottles or jars comprises a blank, e.g. of fibreboard, including two panels 10, 11 each having partition walls 13, 15, the walls 13, 15 having slots 14, 17 so that on pushing them out of the plane of the blank in opposite directions, one panel 11 may be folded down on to the other 10 so that the walls 13, 15 cooperate to define compartments. The carrier may be inserted into a box or may be shrinkwrapped or otherwise overwrapped.
Patent GB-1359179-A (GB)
Title: Adjustable guide for a moving sheet
IPC: B21C47/34
Filed: 1971-11-16
Abstract: 1359179 Strip guides ANACONDA AMERICAN BRASS CO 16 Nov 1971 [18 Dec 1970] 63231/71 Heading B8R [Also in Division B3] An adjustable guide 5 for guiding metallic strips 1 of different width and thickness to processing stations comprises a base-plate 11 having a planar guide surface 10 and a pair of transverse tracks 19, 21 in which are located guide blocks 17 supporting a pair of interchangeable guide-bars 13, 15 provided with guide rebates 34 which engage the longitudinal edges of the strips. The guide-bars 13, 15 are associated with setting screw assemblies 22 for adjusting the bars relative to each other and the strip 1. When set the bars 13, 15 are clamped by clamps 31.
Patent GB-533054-A (GB)
Abstract: 533,054. Olefine oxides. U.S. INDUSTRIAL ALCOHOL CO. Oct. 3, 1939, No. 27113. Convention date, Nov. 5, 1938. [Class 2 (iii)] [Also in Group III] Olefine oxides are recovered from gaseous mixtures by absorption in an aqueous solvent which is then subjected to steam at a sub atmosphere pressure so low that the temperature of the solution is not substantially altered. Suitable pressures are from a fraction of a pound to about 5 pounds absolute, but higher pressures, preferably, not above 7 pounds may be used. On cooling a much stronger solution of olefine oxide is obtained, which may be converted to a glycol by heating to 100-200‹C. under pressure. In the apparatus shown the gas containing the olefine oxide is washed in a tower 5, and the solution then meets steam from a pipe 31 in a second tower 12, the steam and olefine oxide being drawn off under low pressure by a pump 18 and passed at atmospheric pressure through a cooler 20 to a tower 22 where the concentrated oxide is absorbed in water. The solution is forced by a pump 26 into a hydrating chamber 28 under pressure for the production of a glycol. In an example a gas mixture containing ethylene oxide is passed at 30‹C. through the towers 5 and 12 at a pressure of 25-30 mm. in the tower 5 and 30 mm. in the tower 12. The steam supplied by the pipe 31 is at 100‹C. and atmospheric pressure. The ethylene oxide steam mixture contains about 80 per cent. of ethylene oxide ; it may be absorbed to form a solution which on heating at 150‹C. gives 8 to 10 per cent. glycol.
Patent GB-534830-A (GB)
Abstract: 534,830. Mercury switches; actuation of switches. BRITISH THOMSON - HOUSTON CO., Ltd. Sept. 14, 1939, No. 25801. Convention date, Sept. 16, 1938. [Class 38 (v)] The hermetically sealed casing of a motor-driven switch contains, in an inert gas atmosphere, a rotor driving speed reduction gearing, a sealed mercury tube switch driven thereby, all immersed in lubricant, the rotor being in a cylindrical part of the casing, the corresponding stator embracing the exterior of that part. In the example, a mercury switch comprises two metallic sides 24, 27 separated by an insulating partition 28 with an aperture 29 through which mercury 30 may connect electrically the two sides. This switch is mounted so as to be rotated by speed-reducing gearing from the rotor 15 of -a motor 17 the stator 16 of which embraces a narrowed cylindrical part of the hermetically sealed casing 10. Contact with the two parts of the switch is effected by a spring-pressed rod 31 bearing centrally on one side, the other side being in electric connection with the casing through the gears. The timing of the switch may be varied by substitution of casing with different gearing or, to a certain extent, by tilting the switch axis. Adjustment of time of operating may be effected by rotation of the casing in the stator. Two mercury switches may be mounted in the same casing, so as to be operated at different speeds. Two or more switches may be combined to obtain various periods of "on" and " off," either in parallel or by causing the switch of one to operate the rotor of the other with a view to securing overlapping periods of "on" and "off" in associated circuits.
Patent GB-1321525-A (GB)
Title: Method of coating sintered hard metal bodies with surface layer  of carbide
IPC: C23C16/32
Filed: 1971-11-19
Abstract: 1321525 Coating with carbides SANDCO Ltd 19 Nov 1971 [25 Nov 1970] 53827/71 Heading C7F A process for coating sintered articles, e.g. plates, drawing dies, with carbides comprises heating the articles to between 940‹C and 1050‹C in a gaseous mixture of one or more hydrocarbons or halogenated hydrocarbons, e.g. CH 4 , CCl 4 , hydrogen; and at least one halide chosen from the metals Ti, Nb, Ta, Zr, Hf, V, Mo, Cr, and W. The content of volatile hydrocarbon or halogenated hydrocarbon is substantially higher, preferably at least 15 times higher, than that which corresponds stoichiometrically to the amount of methane present under equilibrium conditions with hydrogen at the temperature of the process. The articles contain at least one carbide and a metal. In examples, the articles are of 40-60% WC, 10-15% Co, and 25-45% cubic carbides in the form of TiC, TaC, and NbC. The process preferably takes place in the range 1-100 Torr. The figures (not shown) show apparatus for carrying out the process, Figs.2  and 3 (not shown) showing apparatus that produces ZrCl 4  and WCl 6  respectively in situ by passing chlorine through a heated vessel containing particles of Zr or W.
Patent GB-1101108-A (GB)
Title: Disubstituted adenosine derivatives
IPC: C07H19/16
Filed: 1966-12-02
Abstract: Novel adenosine derivatives of the general formula <FORM:1101108/C2/1> wherein R is a saturated or unsaturated, straight or branched-chain aliphatic hydrocarbon radical and X is a halogen atom, an azido group or an alkylmercapto radical, are prepared either by reaction of a compound of the general formula <FORM:1101108/C2/2> wherein Z is a hydrogen atom or a formyl radical, or the 21,31-isopropylidene derivative thereof, with an N-alkylation or N-alkenylation agent of the formula RI, optionally in the presence of barium hydroxide, and thereafter, if necessary, removal of the protective groups by acid hydrolysis, or by reaction of a compound of the general formula <FORM:1101108/C2/3> wherein Y is the residue of a sulphonic acid, preferably a tosyl radical, with an alkali metal compound of the formula MeX, in which Me is an alkali metal atom, followed by removal of the protective groups by acid hydrolysis. 21,31 - O - Isopropylidene - N(6) - allyl - 51 - O - tosyl-adenosine is prepared by reaction of p-toluene-sulphonyl chloride with 21,31-O-isopropylidene - N(6) - allyl - adenosine, formed by reaction of 21,31-O-isopropylidene-adenosine in dimethyl formamide with allyl iodide.
Patent GB-541340-A (GB)
Abstract: 541,340. Electrically released switches. BRITISH THOMSON - HOUSTON CO., Ltd. May 20, 1940, No. 8949. Convention date, May 19, 1939. [Class 38 (v)] In a thermally-released circuit-breaker, the latch of which is a relatively-slow moving, ambient-temperature compensating bi-metal strip 25 adapted to trip by entering a hole 27<SP>1</SP> in a flexible strip 27 carrying the movable contact 13, undesired tripping produced by rapid movement of strip 25 due to a jar or shock is prevented by a latcharm 29 pivoted about a horizontal pin 30 and biassed by gravity so that the upper edge 31 of an aperture therein bears on the strip 25, Fig. 5. The upper edge 31 leads by incline 31a into a recess 32 such that normal slow movement of strip 25 to the right lifts the arm 29 until, in the recess, tripping occurs. If, however, due to shock, strip 25 moves rapidly, the reaction between it and incline 31a throws the arm 29 forcibly upwards and a right-angle projection 33 on the lower wall of the aperture arrests the strip. The latter is carried on an insulating block 24 on a metal bracket 22 which is pivoted at 23 to the core 15 of an induction heating coil 12 of a helical bi-metal strip 10 with its ends connected together to form a closed winding. One end of the helix is screwed at 20 with an intervening spacer 21 to the core 15, the other end being fastened to bracket 22, an air space normally separating the helix from the core which acts as a heatreservoir enabling rapid cooling, of the helix. A plate 26 carrying strip 25 is set at the factory and is adjustable about pivot 39 by means of a bolt 40 having a cam and slot connection 41, 42 with the plate 26. Plate 34 carrying the arm 27 and pivot 30 is also adjustable left and right, in Fig. 3, by means of a cam screw 38 and screw 36 in a slot in the plate. Contact 13 may control the contactor-closing coil of a motor, Fig. 6 (not shown). Specification 541,418 is referred to.
Patent GB-1533657-A (GB)
Title: Electronic solid state devices
IPC: H01L31/0232
Filed: 1974-12-17
Abstract: 1533657 Semi-conductor gas sensors MULLARD Ltd 21 Nov 1975 [17 Dec 1974] 54484/74 Heading G1N [Also in Divisions C4 and H1] An electrical device which may be used for detecting gases comprises an inhomogeneous body including mutually contacting grains of semiconductor material, the dominant current paths in the body lying within the grains via the "neck" portions at the inter-grain contacts, at which contacts there is continuity of material between adjoining grains, and the arrangment being such that in a quiescent state the conduction paths, particularly in the necks, are not fully depleted. Charge storage means are provided at least at the inter-grain neck portions of the grain surfaces to enable control of the conductance of the body by field effect depletion of the current paths between adjoining grains through the neck portions. The charge storage means may take various forms, examples being illustrated in Fig. 6. Thus, the grains may be of  n-type material having a p-type coating overall, Fig. 6(a) or selectively at the neck portions Fig. 6(c) connection to the coating being made directly via a conductive inter-grain filling. The p-type coating may alternatively be contacted capacitively via an insulating layer thereon Figs. 6(b) and (d). External contact to the conductive filler may be capacitive Fig. 6(e). Figs. 6(f) and (g) show variations in which n-type grains are surrounded by a p-type filler. Various material combinations are disclosed. The grains may be of p-type lead iodide coated with n-type zinc oxide or lead oxide, n cadmium sulphide coated with p cuprous sulphide, zinc telluride or lead iodide, p zinc telluride coated with n cadmium sulphide, zince selenide, zinc oxide or lead oxide, n zinc oxide coated with n cadmium sulphide or zinc selenide or p cuprous oxide or lead iodide, n zinc telluride coated with p cuprous oxide, n zinc oxide or cadmium sulphide with p zinc telluride in the inter-grain spacings, or p zinc telluride with n zinc selenide or cadmium sulphide in the inter-grain spacings. Other grain materials disclosed are silicon, gallium, arsenide, lead sulphide and lead oxide. Organic semi-conductors, such as dyes, may be used as coatings or fillings. The charge storage means may alternatively be adsorbed atoms, molecules or ions, e.g. of oxygen. The various applications described include photo-detection, imaging, image intensification or conversion, electro-photography, gas detection, voltage-variable capacitors, active and passive microcircuit components, photocathodes, voltage dependent resistors, electronic switching and memory devices and electronically controlled catalysts for chemical process control.
Patent GB-1058460-A (GB)
Title: Polyester moulding masses
IPC: C08F283/01
Filed: 1965-12-23
Abstract: Polyester moulding masses comprise per 100 g. of unsaturated polyesters and copolymerizable monomers, 0.002 to 0.100 gram equivalents of aliphatic, optionally substituted monocarboxylic acids with a chain length of 2 to 5 carbon atoms (including the C atom of the COOH group) and/or hemi-esters of cyclic anhydride-forming linear aliphatic dicarboxylic acids and/or partial phosphoric acid esters and/or sulphonic acids and/or halides or anhydrides of said acids, there also being present 0.5 to 10% by weight of magnesium oxide, 0.5 to 5% by weight of polymerization catalysts and possibly also fillers, the magnesium salts of the above acids in the mixtures of unsaturated polyesters and copolymerizable monomers, have a solubility of at least 0.0005 gram equivalents per 100 g. at 25 DEG C. and there being at least 0.75 mol. magnesium oxide per gram equivalent of the total free acid groups. The unsaturated polyesters contain at least 10 mol. per cent, referred to the total content of carboxylic acid residues of a ,b -unsaturated aliphatic dicarboxylic acids.  Acid and acid derivatives mentioned and/or employed in the examples include formic (not effective) acetic, chloroacetic, phenylacetic, phenoxyacetic, cyanoacetic (not effective), propionic, acrylic, crotonic and laevulinic acids, succinic acid monoethyl ester, fumaric acid monoethyl ester, phosphoric acid mono- or dibutyl ester, acetyl chloride, acetic anhydride, p-toluene-sulphonic acid, isobutyric, and maleic acids, glycollic acid (not effective), and maleic acid monoethyl ester.
Patent GB-1386585-A (GB)
Title: Purine sugar derivatives
IPC: C07H19/16
Filed: 1970-11-16
Abstract: 1386585 Purine-sugars WELLCOME FOUNDATION Ltd (Burroughs Wellcome Co) 16 Feb 1972 [16 Nov 1970] 54504/70 Heading C2C [Also in Division A5] Novel threapeutic compounds (I) (including salts thereof)  where R<SP>1</SP> is SH or C 1  to C 4  alkylthio and R<SP>2</SP> is NH 2  or H, or R<SP>1</SP> is NH 2  and R<SP>2</SP> is OH, provided that when R<SP>1</SP> is SH or MeS, R<SP>2</SP> is NH 2 , are made by reducing compounds (II) and when desired alkylating a product obtained, or converting a 2,6-diaminoproduct obtained into a 2-hydroxy- 6-aminocompound by diazotization and hydrolysis (Y<SP>1</SP> is protected mercapto or NH 2  and Y<SP>2</SP> is H or NH 2 , provided that when Y<SP>1</SP> is NH 2 , Y<SP>2</SP> is NH 2 , and Z is a blocking group). Compounds (II) where Y<SP>1</SP> is protected mercapto and Y<SP>2</SP> is H or NH 2 , provided that when Y<SP>1</SP> is MeS then Y<SP>2</SP> is NH 2 , are also novel.
Patent GB-1480610-A (GB)
Title: Container handling devices
IPC: B60P1/64
Filed: 1974-12-17
Abstract: 1480610 Container traffic vehicle loading P LEMAIRE 17 Dec 1974 [20 Dec 1973] 54518/74 Heading B8Q Apparatus for loading a bucket or container 60 on to a vehicle 1 comprises boom 3, having a hook 4 to engage the load, pivoted at 7 on an arm 5 in turn pivoted on a shaft 82 displaceable between the ends 41a, 41b of a slot in a frame 10 in turn pivoted at 80 on a frame 81 ridged with the frame 2 of the vehicle. The apparatus is operated by an hydraulic ram 9 pivoted between the frame 81 and a cross-piece 18 of the arm 5. The shaft 82 can be locked to a stop member 63, Fig. 7, by a crank 66 acting through a cam 64 in order to lock the arm 5 to the frame 10 to allow the ram 9 to tip the container 60, Fig. 12, about the pivot 80 to empty its contents. To unload the container 60 from position A1, Fig. 2, in which rollers 92, Fig. 4, of lugs 91 of the boom beams 3a are lodged in a recess 100, Fig. 5, in the frame 81 and studs 23 of the arm beams 5a, Fig. 4, are in slots 31 while the shaft 82 is in contact with the front end 41a of the slot the locking beam 24 is raised to its inoperative position and the ram extension is started. Initial ram extension moves the shaft 82 to the end 41b of the slot as the unlocked beam 24 passes over the stop 63 while the face 99 of the recess 100 through the lugs 91 rotates the boom 3 to the position B1 in which stop members 17, Fig. 4, engage a crossmember 19 to arrest the pivoting. Continued extension of the jack 9 now rotates the arm 5 about the shaft 82 over the path F until the vertical position is passed and the shaft 82 returns to the end 41a of the slot. During this movement beam members 51 of the container run over rollers 54 until the container rests on the ground and further slight extension of the ram 9 will release the hook 4. The movements described occur in reverse order during loading the container to position A1.
Patent GB-1386468-A (GB)
Title: Application of liquids to surfaces
IPC: B05C17/035
Filed: 1972-11-25
Abstract: 1386468 Hand coating apparatus I GRANTHAM 21 Nov 1973 [25 Nov 1972] 54560/72 Heading B2L  A hand coating device comprises a patterning roller 4 with a relief pattern 6 an intermediate transfer roller 26 and a second roller 28 with a grooved or suitably roughened surface dipping in paint in a reservoir 14. The roller 4 is adjustably mounted as is the handle 32. The relieved surfaces of the rollers may be produced by engraving or moulding of suitable metal, rubber or plastics materials. The roller 26 may be of aluminium.
Patent GB-1218234-A (GB)
Title: Process and device for the support of a lever for force-compensating measuring equipment
Inventor: KASTEN HEINZ
IPC: G01R17/08
Filed: 1968-11-18
Abstract: 1,218,234. Linkwork. INSTITUT FUR REGELUNGSTECHNIK. 18 Nov., 1968, No. 54585/68. Heading F2K. [Also in Division G1] The invention relates to force-compensating measuring apparatus in which a lever 6, Fig. 6, is centrally mounted in a diaphragm 5 (that seals an aperture in a measuring instrument housing 1) and is anchored to the housing plane 15 by tension strips 11, Fig. 5, the lever 6 serving to transmit a measuring force sensed in the housing under pressure greater than that outside and there being provided screws for adjusting the strips 11 to nullify the effect on the measuring result of changes in the pressure inside the housing. In order to nullify this effect without displacing the zero point, distances a, e and w, Fig. 3, are chosen so that A pair of tension strips 11, made of "flowstabilized" material, are clamped in the region 16 to the housing by screws 8 and are secured to the lever 6 by means of a crosspiece 13. The strips 11 are reinforced at the points of attack 12 of the screws 9, 10.