baber/WOPTO huggingface dataset:
Patent GB-172533-A (GB)
Title: Improvements relating to tyre inflators
IPC: F04B33/00
Filed: 1920-12-22
Abstract: 172,533. Camillis, L. Dec. 22, 1920. Junction-pieces.-A hand-operated cycle pump is provided with a detachable member 1 having pivoted thereto a foot-rest 8 to facilitate the use of the pump for inflating motorcycle tyres. The member 1 is screwed into the opening for the usual flexible connection, and the foot rest is adapted to embrace the pump barrel when not in use.
Patent GB-836972-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J13/00
Filed: 1957-02-06
Abstract: The invention comprises a compound having the formula <FORM:0836972/IV (b)/1> wherein R is hydrogen or an acyl radical of a hydrocarbon carboxylic acid containing from 1-8 carbon atoms inclusive and R1 is a lower alkyl radical containing 1-8 carbon atoms inclusive and the preparation thereof which comprises treating a 21-ester of 11b ,21-dihydroxy - 4,6,17(20)[cis] - pregnatrien - 3 - one having the formula <FORM:0836972/IV (b)/2> wherein R is as above defined, with a lower alkyl ester of oxalic acid in the presence of an alkali metal base to give the corresponding alkali metal enolate of a 2-lower alkyloxyoxalyl-#11b,21 - dihydroxy - 4,6,17(20)-[cis] - pregnatrien-3-one having the general formula <FORM:0836972/IV (b)/3> wherein M is an alkali metal of atomic weight 6 to 41, treating the latter compound or 21-ester thereof with a lower alkyl bromide or iodide to give a 2-lower-alkyloxyoxalyl-2-lower alkyl-11b ,21 - dihydroxy - 4,6,17(20) - [cis] - pregnatrien - 3 - one or the corresponding 21 - ester thereof, hydrolysing with an alkali base to give a 2 - lower alkyl - 11b ,21 - dihydroxy - 4,6,17 (20) - [cis] - pregnatrien - 3 - one and then if desired esterifying to produce a 21-ester thereof.  Preferred condensation agents in the first step are methyl, ethyl, propyl, butyl, pentyl, hexyl, octyl, phenyl and benzyl oxalic acid esters while alkali metal condensation catalysts include sodium methoxide, sodium ethoxide, sodium isopropoxide, potassium t-butoxide, lithium methoxide, the alkali metals, and the alkali metal hydrides and amides. Alkylation is then effected by means of methyl iodide, ethyl iodide, propyl bromide, isopropyl iodide, butyl chloride, bromide and iodide, pentyl chloride, hexyl, heptyl and octyl chloride or bromide, allyl bromide, phenyl bromide and iodide and benzyl chloride, bromide or iodide.  The alkoxyoxalyl group is removed from 2-position by an alkali metal alkylation catalyst, sodium or potassium carbonate in the presence of water or a lower alkanol. If the 21-acyl group is removed at the same time it may be reintroduced by conventional procedures.  Examples describe the preparation of 2-methyl-11b ,21-dihydroxy - 4,6,17(20) - [cis] - pregnatrien - 3 - one and the 21-acetate thereof and the corresponding compounds bearing in 2-position butyl, ethyl, propyl, pentyl, hexyl, heptyl, octyl, benzyl and phenyl and the corresponding 21-propionate, cyclopentylpropionate, butyrate, isobutyrate, valerate, isovalerate, hexanoate, heptanoate, octanoate, phenylacetate, benzoate, toluate, trimethylacetate, dineopentylacetate, triethylacetate, chloro-, bromo-, iodo- or fluoro-acetate, trichloro- and trifluoroacetate, toluenesulphonate, benzenesulphonate, nicotinate and 2-furoate. Specification 823,293 also is referred to.
Patent GB-420337-A (GB)
Title: Improvements in cultivators for agricultural and horticultural purposes
IPC: B62D51/06
Filed: 1933-12-23
Abstract: 420,337. Implements for working land. ALLEN & CO., Inc., S. L., 3425, North 5th Street, Philadelphia, U.S.A. Dec. 23, 1933, No. 36244. Convention date, Jan. 3. [Class 6 (i)] In an implement comprising a tool-carrying frame connected to a two - wheeled or other tractor, the tool frame is designed to carryadjustable and inter-changeable tools for cultivating one row of plants only or for simultaneously cultivating more rows than one. The tractor frame is mounted on driven wheels 5 and comprises side bars 1 to which are attached upwardly inclined extensions 6, 7 on which handle-bars 9, 15 are pivoted. These handlebars are connected to a pivoted arm 28 which is connected to an arm 72 on a yoke brace 70 on the tool frame, so that steering may be effected by upward and downward movements of the handle-bars 9, 15. The front end of the tool frame is supported by bars 44, 45 pivoted on the tractor frame 1 and adapted to be raised and lowered by a lever 51. The forward ends of the side bars 40, 41 of the tool frame are adjustably held in place on studs on a yoke 60 by a movable latch member, the yoke 60 being provided with a king bolt 68 pivoted on a traverse part of the bar 44. The bars 40, 41 are bent as shown and are supported on adjustable wheels 80. Groundworking tools 86 are bolted to standards adjustably clamped on the bars 40, 41. The implement is adapted for cultivating three rows at a time by bolting bent inclined bars 90 to the bars 40, 41 and providing three pairs of tools T, T<1>, T<11> as shown. For cultivating one row the tools T<1>, T<11> and the bars 90 are removed and other tools and the wheels 80 mounted on the outwardly inclined parts 40<1>, 41<1> of the frame bars 40, 41. The Specification as open to inspection under Sect. 91 describes the details of the means for connecting the lever 51 and the tool frame with the bars 44, 45 and the means for mounting the handle-bars 9, 15 and connecting them with the arm 28. This subjectmatter does not appear in the Specification as accepted.
Patent GB-761218-A (GB)
Title: Improvements in or relating to air conditioning units
IPC: F24F8/125
Filed: 1954-12-16
Abstract: 761,218. Ventilation. AIR & REFRIGERATION CORPORATION. Dec. 16, 1954 [Dec. 21, 1953], No. 36445/54. Class 137 [Also in Group XII] An air-conditioning unit comprises a casing 12 with air inlet 13 and outlet 14<SP>I</SP>, a liquid reservoir 18 into which dips a rotating washer and humidifier 38, refrigerating coils 39 also dipping into the reservoir, a moisture eliminator 40, a heater 41 and a blower 32 which draws air through the unit into a duct 37 for distribution to the rooms of a house. The washer is made up of a number of spaced screens 42, 43 of expanded metal &c. alternate screens having the major axes of their openings at right angles; all are mounted on a central shaft 44 and are additionally connected by diametrically disposed tie rods 48. The assembly is rotated by a motor 57 at 2-3 revolutions per minute. A spray head 59 may admit water periodically to flush the screens. Coils 39 are supplied with refrigerant for expansion from a compressor 31. An immersed heating coil 70 is supplied with steam &c. through a valve controlled by a hygrostat 74 in duct 37. During winter a water-triethylene glycol solution is preferably used and the concentration is maintained, despite water replenishment through the reservoir ball valve 21, by the automatic periodic supply from a small container of a few drops of the glycol at intervals, a spring-operated flap valve to effect this discharge being operated by a pin on a worm gear rotated from a shaft connected by bevel gearing with the shaft 44. Specifications 603,152 and 713,624 [both in Group XII] are referred to.
Patent GB-1189480-A (GB)
Title: Improvements in or relating to Speedometers
Inventor: ROUNTREE CHARLES NELSON MEREDI
IPC: G01P1/11
Filed: 1967-08-08
Abstract: 1,189,480. Speed-responsive switches. C.N.M. ROUNTREE. 22 July, 1968 [8 Aug., 1967], No. 36471/67. Heading H1N. [Also in Division G1] A speedometer includes means, enabling a signal to be given when a predetermined speed is reached, which comprise a transparent plate 1 replacing its usual cover glass and, between the dial and plate 1, a pointer 2 which is coupled to an external setting knob 7 and carries contacts 8 arranged to be pressed together or bridged by the speed indicator 12 or by a contact 13 carried thereby when the set speed is indicated. The contact 13 may be as long as a portion of the scale representing 5 m.p.h. With an arcuate scale on a rectangular dial, Fig. 1, the pointer is guided for manipulation over the scale by slots 4, 5 in the plate 1 cooperating with a pin or cam 6 on the pointer 2 and a threaded stud extending upwardly therefrom on to which the knob 7 can be screwed so that it can be clamped and unclamped. Connected to the contacts 8 on its under surface, the pointer 2 carries contacts 9 on its upper surface to sweep arcuate conducting strips 10 on the under surface of the plate 1 which are connected through terminals 11 to a source of power and a warning device, which may be visual, audible or both. Modifications to suit speedometers with linear scales and tape indicators and with circular dials are described with reference to Figs. 2 and 3 (not shown). A vehicle driver may set the pointer 2 upon entering a new speed restricted zone and a switch may be provided for inhibiting the warning device in unrestricted areas. The contacts 8 may be metal rollers embedded in the pointer 2 or metal strips projecting from the pointer 2 towards the dial and slightly curved convexly towards one another.
Patent GB-629544-A (GB)
Title: Improvements in or relating to sprinkler fire alarm systems
IPC: A62C35/60
Filed: 1946-12-10
Abstract: 629,544. Fire-alarms. LOVETT, V. S. Dec. 10, 1946, No. 36498. Convention date, Jan. 8. [Class 47 (i)] In a sprinkler system, an alarm is operated when a sprinkler head opens due to the fall in pressure actuating two differential Bourdon tubes. The Bourdon tubes 12 are connected at one end to separate points in a water main 10 through passages 6 adjustable by screws 8 and at the other end by adjustable links 14 to levers 16 carrying quadrants 23 meshing with pinions 25 which are mounted on spindles provided with radial electrical contact arms 31, 40. The Bourdon tube nearest to an opened sprinkler head responds more quickly than the other, whereby the contacts are closed. To show where the fire originates, the operation of any shutter on an indicator board prevents the operation of further shutters. The Specification as open to inspection under Sect. 91 comprises also constructions including a single Bourdon tube or differential bellows. In the construction in which only one Bourdon tube is provided, the associated arm 31 cooperates with a contact on a stop 36. In another construction, a third Bourdon tube connected to one of the other two is provided to operate a local alarm. In a modification, Fig. 8 (Cancelled) (not shown), the two Bourdon tubes are replaced by two bellows arrangements. In another form, Fig. 7 (Cancelled), passages 63, 64 adjustable by screws 65, 66 connect the water main 62 with bellows 67, 77 having between them a spring-raised plate 68 cooperating with contacts 69, 70. This subjectmatter does not appear in the Specification as accepted.
Patent GB-955810-A (GB)
Title: Improvements relating to transducers
IPC: G01L7/00
Filed: 1960-08-02
Abstract: 955, 810. Measuring pressure electrically. GARRETT CORPORATION. Aug. 2, 1960 [Aug. 3, 1959], No. 36628/63. Divided out of 955, 809. Headings G1L and G1N. A transducer for producing a shaft rotation proportional to a desired function of pressure, e.g. log pressure, by means of a balanced force arrangement, comprises a beam 12 acted on by the pressure from a bellows 3, indicative of an aircraft altitude, and opposed primarily by the force of a spring 13, and secondarily by the force in a tension wire 55, produced via cam 52 coupled to the output shaft. Unbalance in the beam 12 is sensed by an electric pick-off 22, whose unbalance signal is fed to a motor 24, which moves the fulcrum 17 of the beam 12 by rotating shaft 21 on which the fulcrum is mounted, until balance is re-established. Shaft 21 is geared to an output shaft 51 which is itself geared to the cam 52 producing the appropriate torsional force in wire 55, which-acts on the beam 12 in addition to the force from spring 13 to make the rotation of output shaft 51 the desired function of the pressure.
Patent GB-852679-A (GB)
Title: Photoconductive compounds
Inventor: NIELSON STANLEY
IPC: H01L21/00
Filed: 1954-12-17
Abstract: A photoconductive compound comprises a compound of the ternary type and made up of three elements which are contained in two compounds of the binary type having a common element, one at least of which is a photoconductive compound, and in which the ion spacing of the two compounds is compatible to the formation of the ternary compound incorporating the elements of the two compounds, whereby the absorption wavelength characteristic of the ternary compound is determined according to the atomic proportion of one of the elements other than the common element of the two binary compounds.  The atomic proportions of the two non-common elements can be varied in complementary manner, one 0%-100% and the other 100%-0% to obtain a corresponding continuous variation in the absorption wavelength characteristic of the ternary compound.  Suitable pairs of binary compounds are lead sulphide and lead selenide, tin telluride and lead telluride, and bismuth selenide and bismuth telluride. Specifications 758,588, 766,671, 766,999, 767,311, 834,658 and 849,341 are referred to.
Patent GB-393520-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H04N5/067
Filed: 1932-12-29
Abstract: 393,520. Valve amplifying circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 29, 1932, No. 36781. Convention date, Dec. 29, 1931. [Class 40 (v).] To compensate for distortion due either to curvature of the valve characteristic, or to variations in the external impedances, in a voltage amplifier coupled to a power amplifier, an out-of-phase voltage is tapped off from one point on the anode impedance and is fed back to the grid, whilst at the same time a suitable grid-bias is derived from a second point on the anode impedance. As shown in Fig. 1, one end of the input transformer, instead of being connected to the cathode as usual, is split and tapped in two places to the output impedance. The tapping through the condenser C feeds back a compensating A.C. voltage, whilst that through the impedance Z provides a D.C. gridbiasing voltage. The two tappings may, as shown in Fig. 2, be taken to separate output impedances arranged in parallel.
Patent GB-1484321-A (GB)
Title: Wide angle lenses
IPC: G02B13/00
Filed: 1974-08-21
Abstract: 1484321 Wide-angle lenses OPTIGON RESEARCH & DEVELOPMENT CORP 21 Aug 1974 [27 Aug 1973 29 July 1974] 36799/74 Heading G2J A wide-angle lens of the retrofocus type, e.g. that described in specification 1484322, comprises a housing 12, a first lens grouping at the object end and a second lens grouping comprising a number of elements in fixed relation to each other. The absolute value of the EFL of the first lens grouping is at least three times greater than the EFL of the overall lens and the second lens grouping is movable forwardly in the housing through a predetermined distance for close focusing of the lens while the first grouping is stationary. After this movement, the first and second groupings may be movable toward the object together in fixed relation. Data are given for three Examples.
Patent GB-1177426-A (GB)
Title: Film assembly.
Inventor: ABBOTT TERENCE ARNOLD
IPC: G03C1/60
Filed: 1967-08-10
Abstract: 1,177,426. Coated film. BEXFORD Ltd. 26 July, 1968 [10 Aug., 1967], No. 36834/67. Addition to 1088906. Heading B2E. [Also in Division G2] A film base material comprises a film of synthetic linear polyester or polycarbonate of highly hydrophobic character having superimposed thereon a layer A comprising predominantly a polyvinyl halogenoester, or a polyvinyl cyanoester, or a copolymer of one of these with an alpha-beta-unsaturated carboxylic acid or with vinyl acetate and/or vinyl alcohol, the layer A having been applied from an aqueous dispersion of latex after the biaxial orientation of the film. The film may be of polyethylene terephthalate. The layer A may consist predominantly of a homopolymer of vinylmono-, di- or tri-halogenacetate, such as the chloroacetate, of a homopolymer of vinylcyanoacetate. Copolymers of these monomers with 1 to 60 mole percent of an alpha-beta unsaturated carboxylic acid or vinyl acetate and/or vinyl alcohol may also be used. The carboxylic acid may be crotonic acid. A layer B(1) comprising gelatin may be superimposed on the layer A and this layer may comprise a proportion of the polymer present in layer A. A layer of a gellatino photographic silver halide immersion may be applied over the layer B(1). A layer B(2) comprising cellulose acetate or cellulose acetate butyrate may be applies and the outer surface of this layer may be hydrolised and impregnated with a diazonium salt. A layer B(3) of polyvinyl acetyl may also be applied over the layer A and this may also be impregnated with a dizonium salt. A layer B(4) of partially hydrolized polyvinyl acetate which may be impregnated with its dizonium salt may be applied over the layer A. The aqueous dispersion or latex may include a wetting agent, a protective colloid or a coalescing agent. The aqueous dispersion may contain a halogen-containing phenolic compound or, alternatively, the film may be pretreated with such a phenolic compound. Numerous suitable phenols are specified. The coatings may be applied by dip-coating, beadcoating or reverse roller coating.
Patent GB-1496100-A (GB)
Title: Ureidoacetic acid derivatives
IPC: C07C239/00
Filed: 1976-09-08
Abstract: 1496100 Ureido acetic acids PHILAGRO 8 Sept 1976 [11 Sept 1975] 37228/76 Heading C2C The invention comprises compounds (I), where R is C 1-4  alkyl or C 2-4  alkenyl and their preparation by treating a hydantoin (II) with a sodium or potassium hydroxide or ammonia in an aqueous organic medium. Hydantoins (II) are made by reacting an isocyanate RNCO with glycine; cyclizing the resulting ureido acetic acid and reacting the resulting hydantoin (III) with 3,5-dichlorophenyl isocyanate. Fungicidal compositions for combating fungal diseases of plants comprise compounds (I) and carriers and/or surfactants suitable for argicultural or horticultural application.
Patent GB-918833-A (GB)
Title: Gas turbine power unit
IPC: F16H59/28
Filed: 1961-10-18
Abstract: 918,833. Change speed control. GENERAL MOTORS CORPORATION. Oct. 18, 1961 [Nov. 3, 1960], No. 37383/61. Class 80 (2). In a power unit comprising a gas turbine driving through a stepped ratio automatic change speed gear, gear shift is controlled in accordance with the compressor outlet pressure. A gas turbine 701 has a compressor 702 and drives an output shaft 728 of a vehicle transmission through a reduction gear 721 and a twospeed epicyclic gear 724. The two speeds are obtained by holding the ring gear 729, and by clutching the ring gear to the run shaft 722, by hydraulic motors 732, 736 respectively. Oil, for the operation of the motors, is supplied by a pump 743 through a pressure regulating valve 746, responsive to the compressor outlet pressure, to a shift valve 806 loaded at one end by pressure from an output shaft driven governor and at the other in accordance with compressor outlet pressure. A throttle valve 768 regulates oil pressure from line 744 to line 786, loading the regulator valve 746 and shift valve 806, in accordance with compressor pressure at 766. Under normal conditions this pressure in line 767 acts together with a spring 773 to load the valve 769 and supply proportional pressure to the valves 746 and 806 through line 786, speed changes being made according to output shaft speed against compressor pressure. On kickdown of throttle pedal 796, compressor pressure from line 803 is fed to line 801 and acts on a larger area land 776 of the throttle valve to produce increased pressure in line 786 and enforce downshift by valve 806.
Patent GB-828385-A (GB)
Title: Improvements relating to alloy steel and heavy duty cutting tools made of it
Inventor: EGLI RUDOLF
IPC: C22C38/24
Filed: 1957-12-02
Abstract: A high speed tool steel has the following composition: Cr 13-20%, W 4-6%, V 2-5.5%, C 1.16-1.45%, Fe and impurities the balance.  For the lower ranges of V and Cr (e.g. 2% V, 13% Cr), the C contents range from 1.16-1.22% whilst in the upper ranges of V and Cr (e.g. 5.5% V and 20% Cr) the C contents range from 1.25-1.45%.  The combined W plus V contents are not less than 35% and not more than 60% of the Cr content of the alloy.
Patent GB-878295-A (GB)
Title: Improvements in or relating to electric circuits incorporating static logic circuits
IPC: H03K19/084
Filed: 1957-12-03
Abstract: 878,295. Transistor logic circuits. WESTING- HOUSE ELECTRIC CORPORATION. Dec. 3, 1957 [Dec. 14, 1956(2)], No. 37626/57. Class 40(6) A "NOR" logic circuit for producing a "ONE" output signal only when all the signals applied to a plurality of input terminals "ZERO", comprises a plurality of similar impedances connecting respective input terminals to the base of a NPN or PNP transistor and an output terminal connected to the collector and to the base of a further logic circuit. In Fig. 4, the input-terminals 14 to 40 are connected through resistors to the base of a PNP transistor having output terminals 37 &c. for connection to further logic circuits. When a "ZERO" signal is applied to all the input-terminals (that is a signal of zero or positive voltage) the transistor is non-conductive and a "ONE" signal (that is a signal of negative voltage) appears at the collector. When a "ONE" signal is applied to any input terminal the transistor saturates and a "ZERO" signal appears at the collector. Rectifiers may be connected in series with the inputs to provide additional isolation between the terminals (Fig. 5, not shown) and the temperature stability may be improved by biasing the base positively through a resistor so as to neutralize the base leakage current. A further improvement may be obtained by replacing the resistor by a temperature sensitive diode, by the base collector path of a transistor or by a thermistor (Figs. 6, 7 and 8, not shown). The state of the circuit may be indicated by connecting a gas discharge tube in series with a source of positive voltage and a resistor between emitter and collector so that, when the transistor is non-conductive, the positive source and the negative collector source act together to cause the gas discharge tube fire and so produce the indication (Fig. 3, not shown). Reference has been directed by the Comptroller to Specification 845,371.
Patent GB-1425539-A (GB)
Title: Hardening apparatus
IPC: F16H1/28
Filed: 1974-08-28
Abstract: 1425539 Heat-treating apparatus AEGELOTHERM GmbH 28 Aug 1974 [30 Aug 1973]  37684/74 Heading C7N Apparatus for rotating metal workpieces during inductive heating and subsequent quenching comprises a polygonal shaft 1, e.g. of square section, welded to a bush 4 associated with hollow journal 5, the bush 4 and its counterpart at the other end of shaft 1 having a number of headstocks 13 and tailstocks (not shown) fitted, each having a rotatable spindle 14. A drive-shaft 11 having a gear wheel 10 passes through the centre of the journal 5, the gear wheel 10 meshing with pinions 15 in the headstocks 13 which allow the spindles 14 to be driven, thus rotating the workpieces during the inductive heating step. The drive-shaft 11 and journal 5 are driven independently by transmission unit 16, and the whole device is fitted between opposite walls of a quench tank 7. In use, the shaft 1 is rotated by journal 5 to bring each workpiece to the inductive heating position (usually the uppermost position) and subsequently to quench the workpiece in liquid contained in tank 7.
Patent GB-1372154-A (GB)
Title: Monoazo pigments
IPC: C09B29/20
Filed: 1972-08-14
Abstract: 1372154 Dyeing cotton STERLING DRUG INC 14 Aug 1972 [16 Aug 1971] 37855/72 Heading D1B [Also in Divisions B2 C3 and C4] The preparation on the fibre of monoazo pigments of formula: wherein X is H or OCH 3 , Y is H, CH 3  or OC 2 H 5  and R is Cl or CH 3  is described. In Example (3) cotton cloth is impregnated in an alkaline bath of 3-hydroxy-2-naphth-paraanisidide and dried, damped with 2% aq. NaCl, a solution containing the diazonium chloride of 3-amino-4-methyl-benzoylurea is applied in streaks and the treated cloth after washing is dried to give a red-patterned cloth.