baber/WOPTO huggingface dataset:
Patent GB-1398557-A (GB)
Title: Dehydrogenation of organic compounds
IPC: C07C5/48
Filed: 1972-09-01
Abstract: 1398557 Dehydrogenation BADISCHE ANILINE- & SODA-FABRIK AG 1 Sept 1972 [3 Sept 1971] 40638/72 Heading C5E [Also in Division C2] Organic compounds are dehydrogenated using free halogen as dehydrogenating agent, the halogen being obtained by thermal splitting of an ammonium halide by bringing an aqueous solution of the ammonium halide into contact with a flame produced by the burning of hydrogen or an organic combustible gas with oxygen or an oxygen-containing gas. The resulting hot flue gas containing free halogen is then introduced into the dehydrogenation reactor. Exemplified is the conversion of ethylbenzene to styrene using ammonium iodide as the ammonium halide.
Patent GB-1220564-A (GB)
Title: Ultra-miniature slide contact pushbutton switch
Inventor: KERANEN JOHN JACOB
IPC: H01H11/00
Filed: 1969-08-15
Abstract: 1,220,564. Retractive switches. CUTLERHAMMER Inc. 15 Aug., 1969 [16 Aug., 1968], No. 40940/69. Heading H1N. A sliding contact pushbutton switch comprises a housing 4 including an insulating base, a pushbutton plunger 6, fixed contacts 8, a movable contact 14 having a mounting portion 14a whereby it is moved by plunger 6 and a contact-making portion 14b whereby it bridges fixed contacts 8 with sliding action, a helical compression spring 10, and a recess in plunger 6 for receiving the contact making portion 14b of movable contact 14 when assembled to provide normally open contacts, spring 10 being large enough to receive contact making portion 14b when it is assembled to provide normally closed contacts. In the normally open contacts assembly, shown, contact making portion 14b projects upwardly, and in the normally closed contacts assembly, Fig. 3 (not shown) portion 146 projects downwardly. There is an insulating washer 12 between spring 10 and movable contact 14.
Patent GB-1197224-A (GB)
Title: Frequency-Controlled Oscillators
IPC: H03B23/00
Filed: 1967-09-08
Abstract: 1,197,224. Frequency modulation. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 8 Sept., 1967 [10 Sept., 1966], No. 41187/67. Heading H3R. [Also in Division G1] In an oscillator of the type comprising an amplifier Vo and a frequency determining network comprising voltage controlled impedances R 1 , R 2 , R 3  in a feedback path, the frequency or time period is made a linear function of an applied control voltage U x  by driving a voltage U #R  proportional to the sum of the controlled impedances and comparing it with the voltage U x  in a high gain amplifier V R  to produce a difference signal to control the impedance of the elements R 1 , R 2 , R 3 . If the gain of amplifier V R  is sufficiently high, the time period of the oscillator is shown to be a linear function of U x . As shown the system is employed to measure the unknown voltage U x . In modifications Figs. 4, 5 (not shown), the system may be employed to measure a unknown impedance. In such arrangements, the unknown impedance and the impedances R 1 , R 2 , R 3  form two adjacent arms of a bridge circuit. The variable impedance elements may be, as shown, light sensitive resistors or alternatively the resistors may be fixed and voltage variable capacitors or inductors employed.
Patent GB-1528506-A (GB)
Title: Thermoplastic polymer blends
IPC: C08L101/00
Filed: 1976-10-05
Abstract: 1528506 Thermoplastic olefin polymer blends B F GOODRICH CO 5 Oct 1976 [6 Oct 1975] 41201/76 Heading C3M Thermoplastic polymer blends comprise (1) a copolymer of 65-85% ethylene, 5-35% propylene and 0À10% diene monomer and having an ethylene sequence index of 30/1 to 70/1 and a melt endotherm of 2-15 cals./gm. and (2) 5-200 parts per 100 parts of the copolymer of a crystalline polypropylene. Examples describe blends of polypropylene with ethylene/propylene and ethylene/propylene/ethylidene norbornene copolymers.
Patent GB-1379946-A (GB)
Title: Plasma sprayed titanium carbide-containing steel coatings
IPC: C23C4/06
Filed: 1972-09-06
Abstract: 1379946 Plasma-sprayed TiC-containing coatings CHROMALLOY AMERICAN CORP 6 Sept 1972 [17 Nov 1971] 41318/72 Heading C7F A metal substrate has plasma-sprayed thereon a coating consisting of 10-80 wt per cent primary grains of TiC dispersed through a steel matrix constituting the balance and being one of the following: (A) 1 to 6% Cr, 0À3 to 6% Mo, 0À3- 0À8% C, balance Fe and incidental impurities (B) 6 to 12% Cr, 0À5 to 5% Mo, 0À6 to 1À2% C, 0 to 5% W, 0 to 2% V, 0 to 3% Ni, 0 to 5% Co, balance Fe or (C) 10-30% Ni, 0À2 to 9% Ti, 0 to 5% Al, the sum Ti + Al not exceeding 9%, 0 to 25% Co, 0 to 10% Mo, balance at least 50% Fe, the proportions being such that when Ni = 10 to 22%, Al + Ti is less than 1À5%, and Mo, Co, are each at least 2%, and when Ni = 18 to 30% and Mo = less than 2%, Al + Ti is more than 1À5%, said matrix from A, B, or C being characterized by the presence of martensite. The substrate has M.pt. > 1100‹F and may be Al, Cu, Ag or alloys based on these, steels, Fe alloys, Ni or Co or their alloys and plasma-spraying, preferably with prealloyed powder, takes place in an inert gas such as 90 vol % N 2 /10% H 2 ; the coating may be subsequently tempered.
Patent GB-1501247-A (GB)
Title: Wheel speed sensor assembly
IPC: B60T8/32
Filed: 1975-10-09
Abstract: 1501247 Angular velocity sensors ROCKWELL INTERNATIONAL CORP 9 Oct 1975 [4 Nov 1974] 41460/75 Heading GIN The angular velocity of a wheel whose hub 20, Fig. 1, is mounted on bearings 22 carried by the wheel axle 18 is determined by the frequency of the signal produced by an electromagnetic transducer located in the hub-cap 12, comprising a steel ring 34 with a plurality of slots 38, attached to the inner surface of the hub-cap, and a pick-up device 36 mounted in a circular housing 42 nesting on a bearing member 48 carried by a central extension 46 of the hub-cap 12. The housing 42 has a central extension 50 which protrudes into the open end of the axle 18 and incorporates coupling means between the coils of the pick-up 36 and a wire 54 leading to measuring or control apparatus. A conical rubber ring 56 is secured to the outer surface of extension 50 and when the hub-cap 12 is bolted to the wheel hub 20 the edge 58 of the axle 18 presses into the ring 56 and prevents relative rotation between the axle 18 and the housing 42. A retainer ring 60 is press-fitted to the interior of the hub-cap 12 so that when the hub-cap is removed it carries with it the housing 42. Alternative forms of rubber ring 50 are described.
Patent GB-955939-A (GB)
Title: Hydraulic cylinder with adjustable cushioning means
Inventor: BENJAMIN MILTON LLOYD
IPC: F15B15/22
Filed: 1962-11-02
Abstract: 955,939. Hydraulic motors. ERICKSON TOOL CO. Nov. 2, 1962, No. 41591/62. Heading F1P. A hydraulic cylinder 6 is closed at each end by a head 8 and has a reciprocable piston 3 retarded as it approaches the head by two flow restrictors, the first comprising a cylindrical bore 11 of the piston 3 which coacts with a tapered cushioning nipple 19 of the head 8, and the second comprising an adjustable restriction 20 disposed between the cylinder port 16 and passages 18 in the nipple 19. In the position shown pressurized fluid enters through the upper cylinder port 16 and passes to three passages 24 each having a check valve 25 and into a chamber 14 at the bottom of the cylindrical bore 11, whereby the piston moves downwardly being further assisted by fluid passing through upper openings 15 and 18. Fluid within the space below the piston is forced out through lower openings 15 and 18 leading to the lower port 16, and at the end of the stroke the lower tapered nipple 19 enters the bore 11 to retard the piston movement The return stroke is identical, pressurized fluid being supplied through the lower cylinder port 16. The piston 3 has adjustable U-cup packings 4 and is provided with a piston rod 1 having a gear rack 2 adapted to mesh with a gear segment of an indexing device (not shown). Specification 676,901 is referred to.
Patent GB-1323148-A (GB)
Title: Cardenolide and bufadienolide glycosides and process for their  manufacture
IPC: A61K31/585
Filed: 1970-09-01
Abstract: 1323148 Cardiac glycosides FARBWERKE HOECHST AG 1 Sept 1970 [29 Aug 1969] 41721/70 Heading C2U The invention comprises steroid 3-[#<SP>2</SP>-2,3- dideoxy-4-O-substituted-D or L-rhamnopyranosides] of formula (wherein R 1  is a steroid 3-yl radical of the 20(22)- cardenolide or 20,22-bufadienolide series and R 2  is an aliphatic, cycloaliphatic or araliphatic hydrocarbon group); and their preparation from the corresponding compounds in which R 2  is H by reaction with an appropriate hydrocarbon halide in the presence of an inorganic silver compound. Strophanthidin 3 - [#<SP>2</SP> - 2,3 - dideoxy - α - L- rhamnoside] is prepared from strophanthidin via strophanthidin 3 - [#<SP>2</SP> - 2,3 - dideoxy - 4 - O- acetyl-α-L-rhamnoside]. Other starting materials are prepared as described in Specifications 1,268,230 and 1,282,019. The steroids of Formula (I) are stated to possess cardiotonic, diuretic and antidiarrhoeal activities, and may be made up with carriers into pharmaceutical compositions for oral or parenteral administration.
Patent GB-1133883-A (GB)
Title: Improvements relating to an apparatus for separating fibrous tufts from a stream of air
IPC: B65G53/60
Filed: 1966-09-19
Abstract: 1,133,883. Forming webs. MASCHINENFABRIK RIETER A.G. 19 Sept., 1966 [5 April, 1966], No. 41767/66. Heading D1N. Apparatus for separating flock 2 from a conveying airstream coming, e.g. from a bale opener, along a pressurized duct 1 comprises a shaft 4 with means, such as a roller pair 16, 17, to form the fibres deposited therein into a web a channel 7 parallel to shaft 4 and connected to shaft 4 by vertical slots (6), see Fig. 3, not shown, through which the conveying air passes to be eventually led away along a conduit 18. The fibres in shaft 4 can thus slide down the slots without clogging; the slots are open at the lower end to facilitate movement of the fibres. Slotted walls may be provided on opposed walls of shaft 4, see Fig. 6 not shown. The duct carrying the flock may be connected to a series of shafts 4, e.g. three, so that all the flock can be dealt with and there is no need for surplus to be recirculated. As shown roller 17 is perforated so that fibres in channel 7 are trapped and return to the web being formed. Both of the web forming rollers may be solid.
Patent GB-1192736-A (GB)
Title: The preparation of Eutectic Material
Inventor: GREEN GEOFFREY WILLIAM
IPC: C30B21/02
Filed: 1966-09-20
Abstract: 1,192,736. Zone-melting, &c. NATIONAL RESEARCH DEVELOPMENT CORP. 18 Sept., 1967 [20 Sept., 1966], No. 41836/66. Heading B1S. A eutectic material is produced by crystalpulling, zone-melting or progressive freezing, the solidifying interface being influenced by a steady magnetic field. The material may be InSb/NiSb, Ta/Ta 2 C or Nb/Nb 2 C. As shown, a heater 4 produces a molten zone 3 in material in a boat 2 and a magnetic field is produced by pole pieces 8 of permanent or electro magnets.
Patent GB-1478708-A (GB)
Title: Multilevel data transmission system
IPC: H04L25/49
Filed: 1974-09-26
Abstract: 1478708 Data transmission; methods of coding NIPPON ELECTRIC CO Ltd 26 Sept  1974 [27 Sept 1973] 41944/74 Heading H4P A 2N-1 level partial response transmission system, where N is an integer >2, having a coding means such that decoding can be correctly determined even if polarity inversions occur comprises, at the transmitter, a parallel store with a monitor for pairs of digits representing N - i and i levels, where i represents any positive integer less than N/2, and means for delivering a parallel output when the N - i or i level is equal to the same levels last monitored, and for delivering another parallel output when the above comparison is different, with partial response coding of the output to provide 2 N - 1 levels transmitted e.g. with a pilot carrier in amplitude modulated form. The pair of codes pertaining to N - i and i levels differ only in the most significant bit. The remaining bits are represented by the same binary codes, the most significant bit specifying which level. Binary input data, if serial is converted into parallel, and applied to terminals 11-14 particular combinations being detected at 1; AND gate 2, exclusive OR 3 and 1 bit memory 4 perform a known differential coding with respect to the most significant bit where this is neither X nor Y (see below) together with a selector 5 which selects the direct input from 11 if input is X or Y or output from 4 if input is not X nor Y. When input is X or Y, AND 2 is closed to feed a 0 to OR 3 so that content of memory circuit 4 is unchanged. If N is odd, then X = SO (Fig. 3 not shown) and Y has no value. If N is even, X = SO and Y = SN2. The receiver (Fig. 2b not shown) operates approximately conversely to that of the transmitter. As certain of the input codes are differentially coded in pairs, even if one symbol should be mistaken for the opposite one of the pair owing to polarity inversion on the transmission path, they will be interpreted correctly. Figs. 4a, 4b (not shown) illustrate a 15 level system where N = 8 which are represented by binary digits B1,-B3 given in Fig. 5 (also not shown). Symbols S1 and S7, S2 and S6 and S3 and S5 (respectively form pairs). It is stated in the specification that use of redundancy is avoided and that only one memory element for coding and decoding is necessary regardless of the value of N. The arrangement is stated to be an improvement on Specification 1,377,724.
Patent GB-1446038-A (GB)
Title: Impellertype pumps
IPC: D06F39/08
Filed: 1973-09-06
Abstract: 1446038 Hinges SIEMENS AG 6 Sept 1973 [7 Sept 1972] 42075/73 Heading E2F [Also in Division F1] In a pump comprising an impeller and a housing, the housing comprising a base portion and a cover adapted to be sealed to one another, and the cover being connected to the base portion by a hinge, one hinge part comprises at least one pivot journal adapted to engage into a bearing cup on the other hinge part, the arrangement being such that when the pivot journal is engaged in the bearing cup the hinge parts cannot be disengaged except when the cover is pivoted away from the base portion to an open position beyond a predetermined open position. After rotation of a closure lever 18, Fig. 1, which normally holds the cover 1 into fluid-tight engagement with the base portion 2, the cover can be pivoted relatively to the base portion via a hinge 3, 4. The hinge part 3, which may be cast on to or integrally with the plastics cover 1, comprises pivot journals 31, 32, Fig. 2, carried by arms 34, 35 which are interconnected by a spindle 33. The hinge part 4 comprises a base plate 43, Fig. 5, cast on to or integrally with the base portion 2 or, as shown, attached to it by means of pins 46, (47) which snap into holes in the base portion, and side plates (44), 45 each carrying a semicylindrical bearing cup (41) or 42. The pivot journals 31, 33 are inserted into the bearing cups by a downward movement which causes a resilient tongue 8 to be deflected downwardly by the spindle 33 and the snap back to bear radially against the spindle and thereby hold the journals in the bearing cups. When the cover 1 has been pivoted relatively to the base portion 2 to an open position in which the relative positions of the hinge parts 3, 4 are as shown in Fig. 8, the tongue 8 engages between protuberances 16, 17 to hold the core in that position. If the cover 1 is pivoted further until a cam element 14 comes against the tongue 8 and deflects it away from the spindle 33, it becomes possible to separate the hinge part 4 from the hinge part 3 so as to remove the base portion 2 together with the pump impeller, driving motor 5 and cooling fan 7 for servicing or replacement, the cover remaining attached to the inlet and outlet hoses. The cam element 14 may be replaced by a recess 20 permitting separation of the hinge parts.
Patent GB-1389620-A (GB)
Title: Discharge tube provided with an electrode comprising nickel and aluminium
IPC: H01J61/067
Filed: 1973-09-07
Abstract: 1389620 Gas discharge lamps; electrode materials PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 Sept 1973 [12 Sept 1972] 42133/73 Heading HID A gas or vapour discharge lamp has at least one internal electrode constructed from a three layer material comprising a layer of iron between layers of nickel and aluminium, the thickness of aluminium being less than 15 microns and the said electrode having been heat-treated in a non-oxidizing atmosphere, e.g. hydrogen or a vacuum, at a temperature of at least 700 C. for a maximum of 15 minutes. The nickel layer can be provided with an emissive coating of a triple carbonate of barium, strontium and calcium which is decomposed by heating. The lamp can be of the glow discharge type, Fig. 1 (not shown) when the electrode is of a dished shape with the nickel layer facing the discharge, or an arc, lamp Fig. 2 (not shown) with two cylindrical electrodes made as above and with the nickel layer innermost with co-axial starting electrodes. The filling can be neon, argon and mercury.
Patent GB-894130-A (GB)
Title: Improved heating arrangement for sterilizers
Inventor: PEARSON SYDNEY THOMAS
IPC: A47J27/00
Filed: 1958-12-31
Abstract: 894,130. Electric sterilizers. SURGICAL EQUIPMENT SUPPLIES Ltd. Aug. 26, 1959 [Dec. 31, 1958], No. 42142/58. Drawings to Specification. Class 39(3) The heating assembly of a sterilizer boiler is contained in an air-tight space between two dished members provided with rims, between which is disposed a neoprene gasket, the two dishes being held together by a metal clip, and the bottom of one dish is joined to the bottom of the boiler by spot-welding. The space preferably also houses at least two thermostatic controls.
Patent GB-1049648-A (GB)
Title: Improvements in or relating to control apparatus for camera shutters
Inventor: KAMINSKI HENRY JOHN
IPC: G03B7/085
Filed: 1963-10-28
Abstract: 1,049,648. Exposure controls for cameras. KEYSTONE CAMERA CO. Inc. Oct. 28, 1963, No. 42451/63. Headings G2A and G2E. In a camera, light sensing means provide a signal indicating the amount of light available for photographing and renders the shutter inoperative if this amount is inadequate for proper film exposure. In one embodiment, a motion picture camera has a photo-cell 32 connected to a galvanometer 90 Fig. 3 (not shown) having a shaft 92 carrying a diaphragm 94 with a graduated aperture 96. The shaft 92 also carries a vane 104<SP>1</SP>, Fig. 4. If sufficient light, as detected by the photo-cell 32, is available, vane 104<SP>1</SP> is out of the path of light a photo-cell 132, thus allowing a control circuit to energize camera motor. When there is insufficient light for proper exposure, thereby increasing the resistance of the cell, such that a transistor 128 is non-conducting and drive motor 120 is thereby deenergized. In another embodiment, a vane 94<SP>1</SP>, Fig. 6, on a galvanometer 90<SP>1</SP> is positioned between a light bulb 150 and a photo-cell 156 within a casing having an aperture 160. A tab 104<SP>11</SP>, Fig. 5 (not shown), is interposed between the bulb 150 and photo-cell 156 when there is insufficient light for correct exposure. The photo-cell 156 is in circuit with a transistor 176, Fig. 7 (not shown) which controls the energization of a drive motor 172 through a relay 178, such that motor 172 is de-energized when the illumination is insufficient. An overriding switch 174 is provided for energizing the motor 172.
Patent GB-868560-A (GB)
Title: Flotation process
IPC: B03D1/008
Filed: 1959-12-14
Abstract: The niobium minerals pyrochlore and niocalite are concentrated by froth flotation in the presence of catechol in addition to frothing and collecting agents.  The operation is preferably effected in two flotation stages, the first stage being conducted at a pH of 10-13 (by addition of alkali to the pulp) without catechol, resulting in the removal of impurities in the float product, and the second stage being conducted at a pH of 2-10 (by addition of e.g. sulphuric, hydrochloric, nitric or hydrofluosilicic acid or magnesium fluosilicate, to the first-stage residue) in the presence of catechol, resulting in the flotation of the niobium.  Specified frothing agents are pine oil, methyl isobutyl carbinol and propylene glycol methyl ethers. Specified collectors are high molecular weight aliphatic amines, amine acetate salts, N-alkyl trimethyene diamines in which the alkyl is derived from oleic acid, and N-alkyl trimethylene diamine diacetate in which the alkyl is derived from tallow.  If desired, the froth flotation may be preceded by gravity separation operations such as sink-float and tabling.
Patent GB-1358574-A (GB)
Title: Sparingly soluble heterocyclic compounds and processes for their production
IPC: C09B57/00
Filed: 1971-09-14
Abstract: 1358574 4-Trifluoromethyl-2-aminothiophenol and an intermediate therefor SANDOZ Ltd 14 Sept 1971 [21 Oct 1970 22 Oct 1970] 42868/71 Heading C2C [Also in Division C4] In Example 6, bis-(4-trifluoromethyl-2-nitrophenyl)-1,1-disulphide is prepared by adding a mixture of sodium sulphide and sulphur in ethanol to 4-chloro-3-nitrotrifluoromethyl benzene in ethanol and then refluxing for 3 hours. Also, 4-trifluoromethyl-2-aminothiophenol and its zinc salt are prepared by reducing the nitro compound obtained above with Zn powder in acetic acid and hydrochloric acid.
Patent GB-1088995-A (GB)
Title: Structural member for building construction
IPC: E04B1/58
Filed: 1964-10-22
Abstract: 1,088,995. Tubular beams. R. BIFFANI. Oct. 22, 1964 [Oct. 25, 1963], No. 43084/64. Headings E1K, E1S and E1W. [Also in Division F2] Beams &c are tubes of generally square cross section each face having a pair of oppositely facing and oppositely inclined ,longitudinally extending surfaces 14 which provide, a dovetail channel Fig. 1 or ridge Fig. 7 (not shown). The end of one beam A Fig. 2 is joined to the side of another beam B by plates 18 connected together by a pin 22 fixed to the beam A, the plates being forced apart by a screw 24 to engage the bent ends of the plates under the dovetail surfaces of the beam B. A similar joint is made by two angled plates 30 the parallel parts of which are drawn together by a screw 34 to force the ends of the angled parts under the dovetail faces on the beam B. A U-shaped member 28 embraces the angled plates and is connected to the beam by a pin 22. Clips are described for connecting beams crossing one another or connecting a beam to a foundation. Fish plates connect beams end to end. The reduced edges of building blocks are engaged in the dovetail channels.
Patent GB-1111308-A (GB)
Title: Process for the production of coke pellets
IPC: C10B53/08
Filed: 1966-09-27
Abstract: Coke e.g. for blast furnace burden, is produced by charging pellets of fine grained solid carbonaceous material to a rotary kiln having a temperature of at least 500 DEG  C., the pellets being heated to a hardening temperature at a rate of at least 20 DEG  C. per minute, and preferably at 30 DEG  C. to 50 DEG  C. per minute.  The pellets should be dried before delivery to the kiln, and may comprise 15 to 30% b.w. caking coal, and/or may include pitch or tar as a binder, the solid non-caking component comprising high volatile content coal, anthracite, coke fines, lignite, wood powder or their charring products.  The heat carrier may comprise coke pellet product or raw coal, or may be iron ore which is thereby prereduced before treatment in a blast furnace.  The pellets are dried by heat produced by burning volatiles from the coking process.  The temperature rate is controlled by controlling the rate of introduction of the pellets into the kiln and/or by controlling the supply of heat to the kiln.