baber/WOPTO huggingface dataset:
Patent GB-1441808-A (GB)
Title: Intrinsically safe power supply apparatus
IPC: H02H9/00
Filed: 1973-07-31
Abstract: 1441808 Electricity supply arrangements COAL INDUSTRY (PATENTS) Ltd 18 June 1974 [31 July 1973] 36283/73 Heading H2H An intrinsically safe power supply apparatus, e.g. for use in a coal mine, comprises a battery divided into at least two serially connected sections 2, 3, each being bridged by a unidirectional conducting element 4, 5 such as a diode arranged so as to be non-conductive in response to the voltage of the corresponding section of the battery and including output terminals 6 connected to the battery sections 2, 3 via at least one current limiting resistor 9, 10. In the event of open circuit of one of the battery sections 2, 3 it will be bridged by its corresponding diode 4, 5 thus preventing sparking. A voltage regulator, of unspecified type and/or a Zener diode 8 may be connected across output terminals 6. In Fig. 1 (not shown) only a single current limiting resistor is employed connected between the cathodes of diodes 4 and 8.
Patent GB-861980-A (GB)
Title: Amino aralkyl nitriles
IPC: C07C255/32
Filed: 1958-11-12
Abstract: Aminoaralkylnitriles of the general formula <FORM:0861980/IV (b)/1> wherein -N=X is a primary, secondary, tertiary or cyclic amino radical, Ar is an unsubstituted or substituted phenyl radical, and R1 is an alkyl, aralkyl or alicyclic radical, are produced by reacting an aminoketone of the general formula R1-CO-CH2-CH2-N=X with hydrogen cyanide, then reacting the hydroxy-nitrile so obtained with a halogenating agent in order to replace the -OH group by a halogen atom, and finally reacting the halogen compound with benzene or a substituted benzene in the presence of aluminium chloride or a similar catalyst.  In Example 1, dimethylaminoethyl cetyl ketone hydrochloride is reacted (in solution) with potassium cyanide, and the hydroxynitrile so obtained is treated with thionyl chloride giving a crystalline chloronitrile.  The latter is reacted with benzene, using aluminium chloride as catalyst, to yield a  - dimethylaminoethyl - a  - cetyl - benzyl cyanide.  The hydrochloride of this base is also prepared.  In Example 2, a -phenyl-a -(4-chloroethyl - 1 - ethyl - piperazino) b  - methyl - valeric acid nitrile is obtained starting from sec.-butyl-(4 - chloroethyl - 1 - ethyl - piperazino) - ketone.  The products of these examples are claimed per se, and have a variety of pharmacological properties.
Patent GB-522637-A (GB)
Title: Improvements in or relating to generators of electric wave-forms
IPC: H03K4/43
Filed: 1938-12-16
Abstract: 522,637. Valve generating circuits. BULL, E. W. Dec. 16, 1938, No. 36633. [Class 40 (v)] A generator includes a condenser charged from a supply with the potential across the condenser applied to a valve whose load is inductive and a feedback between the load and the charging condenser arranged to produce a current in the load of saw-tooth form with improved linearity of the forward stroke. The Figure shows a saw-tooth voltage generator 10, 11, 21 driving current generator 12 with a feedback 19, 20'. Impedance elements 23, 24, 25 may be associated with the charged condenser 10 to form a network which is approximately the inverse of the output network so that during the fly-back the waveform describes a single positive half cycle of oscillation and thus the fly-back period is reduced. The feedback path may attenuate low frequency components so that non-linear distortion of the output current due to resistance in the circuit is reduced.
Patent GB-156164-A (GB)
Title: Improvements in pencil holders
IPC: B25B5/00
Filed: 1920-12-31
Abstract: 156,164. Kristofek, F. J., and Fischer, H. L. Nov. 11, 1919, [Convention date]. Pencil-holders. - A pencil-holder comprising a thin tubular casing formed conical at its forward end is provided with a lead-propelling means entirely removable from the casing and forming in conjunction therewith a receptacle for spare leads. The lead in use 10, Fig. 2, which shows the operating-mechanism removed from the casing, is held loosely in the forward end of a member 16 to allow free alignment with the hole in the end of the casing. The member 16, longitudinally slotted at 18, is rotatably mounted in a screwed sleeve 21 and is provided with an operating head 24 in proximity to a head 22 rigidly secured to or formed integral with the sleeve 21. A socket 15 for the rear end of the lead 10 is held in the member 16 and a side extension 17 passes through the slot 18 and engages the thread 20 of the member 21. A collar 25 secured to the forward end of the member 16 prevents longitudinal movement between the member 16 and sleeve 21, and supports the forward ends of these members in the casing. The head 22 of the sleeve 24 screws into the end of the pencil casing. When the operating-head 24 is turned, the socket 15 containing the lead is reciprocated in the casing by means of the slot 18 and screwthread 20. A collar 29 is placed in the sleeve 21 and is provided with spring sockets 28 to hold extra marking leads 10<1>, these being held in close proximity to the sleeve when placed in the casing. The collar 29 may be placed in the opposite end of the sleeve to that shown, the ends of the spare leads projecting beyond the collar 25, or a spring socket 32, Fig. 4, split at 33, may be used, spare leads being accommodated between the corners 34 and the round body of the sleeve 21.
Patent GB-779284-A (GB)
Title: Hydraulic forming attachment for presses
IPC: B21D22/12
Filed: 1954-12-20
Abstract: 779,284. Stamping. SVENSKA AEROPLAN AKTIEBOLAGET. Dec. 20, 1954 [Dec. 22, 1953], No. 36709/54. Class 83 (4). An attachment for adapting a press for forming irregularly-shaped tubular parts comprises at least one die 13 or 14 movable to deform the wall of a blank 13 and a liquidfilled bag 27 of rubber or like material fitting within the blank and supporting it from inside during deformation, the liquid in the bag being releasable at a predetermined pressure through a spring-loaded valve 32 into an expansion chamber 25. The bag 27 is attached to an outer press head 6 by a disc 26 fitting in a bore in a plate 24, the bore forming the expansion chamber 25 and being closed by a disc 34 having a filler plug 341. The disc 26 is provided with the spring-loaded valve 32 and also with a check valve 33 for allowing the expelled liquid to return to the bag. The dies 13, 14 are carried by members 9, 10 movable by pneumatic cylinders 12 or other means and have spring- loaded rods 16 extending slidably through the members 9, 10 so that they are brought together on the blank when cam surfaces 40 on their outer surfaces are engaged by cam surfaces 41 on extensions 37 of an inner press head 7. Walls 22 attached to the plate 24 have grooves 23 engaging flanges 19 on the members 9, 10 so as to hold the dies against separation during the forming operation. To enable the die assembly to be removed for more accurate final shaping of the tubular part in an attachment as described in Specification 771,257, pins can be inserted through holes 46 in the members 9, 10 and the dies.
Patent GB-1161870-A (GB)
Title: Improvements relating to Sleeping Arrangements in Vehicles.
IPC: B62D33/06
Filed: 1968-08-01
Abstract: 1,161,870. Sleeping berths. DAIMLERBENZ A.G. 1 Aug., 1968 [8 Aug., 1967], No. 36774/68. Heading B7B. The cushioned bench 4 is secured to the back wall 5 of a vehicle cab 6 by double axis hinges so that it may be used in the position shown supported by the strap 7 and slide bolts to serve as a bed or may be swung down as at 4a to serve as a back rest. The lower bench 9 is likewise secured by double axis hinges 10 so that in the lower position it serves as a bed whilst in the raised position 9a supported also by the strut 12 it serves as an additional seat behind the driver.
Patent GB-1524145-A (GB)
Title: Textile cot assembly
IPC: D01H5/74
Filed: 1976-09-06
Abstract: The pressure roller has a supporting core (21A) and a bush (23A). Between these can be arranged a special bearing (22A) which has shoulders (25A) and a bearing surface (24A) located between them. The bush (23A) consists of elastomer; to draw it on, it is expanded and then sits in the expanded state on the bearing surface (24A). Projections (40A) with depressions (41A) between them prevent a relative rotation of the bush (23A). Such projections can also be provided on the bearing surface (24A), in which case they either are present alone or cooperate with those on the inside (30A) of the bush. This construction of the pressure roller makes it easier to replace the worn bush (23A). <IMAGE>
Patent GB-1017364-A (GB)
Title: Improvements in or relating to magnetic recording media
IPC: C09D5/23
Filed: 1964-09-09
Abstract: 1,017,364. Magnetic structures. AMPEX CORPORATION. Sept. 9, 1964 [Nov. 7, 1963], No. 36882/64. Heading H1H. A method of making a magnetic tape comprises forming a mixture of a high molecular weight polyester resin having reactive hydroxyl groups (M.W. > 10,000), an isocyanate prepolymer, and finely divided magnetic particles, e.g. acicular Fe 2 O 3 , in a solvent, coating the mixture on an organic tape base, removing the solvent and curing to form a thermoset coating. The polyester resin may be the reaction product of a dibasic acid with a dihydroxy alcohol, e.g. isophthalic acid and butane diol, and the prepolymer may be an adduct of toluene di-isocyanate or diphenyl methane di-isocyanate with polyhydroxy alcohols. The ratio of polyester resin to prepolymer may be between 25- 75% and 75-25%. A suitable solvent is a mixture of methyl isobutyl ketone, methyl ethyl ketone and toluene. The magnetic material may comprise 65-85% of the coating by weight. The magnetic material may be added to the resin in mixing, or, if thoroughly dry, to the prepolymer. Amine catalysts may be used to accelerate curing, and dispersing agents, lubricants and anti-static agents (lethicin, silicone oil and carbon black) may be included. Polyester resin, cellulose acetate and polypropylene may be used for the tape base. The mixture may be applied by gravure or knife edge coating. After coating the tape passes through an oven to remove solvents and is then reeled. The reeled tape is cured at room temperature for one week or at 140‹ F.-150‹ F. for 48 hours.
Patent GB-1199527-A (GB)
Title: Method of Producing a Coated Paper
IPC: D21H25/02
Filed: 1968-08-02
Abstract: 1,199,527. Coated paper. KURASHIKI RAYON K.K. 2 Aug., 1968 [3 Aug., 1967], No. 36981/68. Heading B2E. A paper coated with a coating composition comprising a pigment and PVA or one of its derivatives is treated with a solution comprising boric acid or a borate, a surface active agent, and a water -soluble compound havinig at least one primary, secondary or tertiary amino group in its molecule and having a boiling, sublination or decomposition point of excess of 100‹C. The borate is preferably borax whilst preferred water-soluble compounds are triethanolamine, hexamethylenediamine, hexamethylenetetramine, dicyandiamide, urea, ethylenediamine or dipropylamine. The treatment imparts an improved water resistance to the coated paper and prevents the coated layer from sticking to a calender roll, so that the coated paper has a superior printability.
Patent GB-1533079-A (GB)
Title: Vehicle drive arrangement
IPC: A01D69/06
Filed: 1977-09-05
Abstract: 1533079 Change-speed gear control DEERE & CO 5 Sept 1977 [4 Sept 1976] 37001/77 Heading F2D An infinitely-variable gear, an expanding pulley gear as described, upstream of a clutch, has its ratio altered to reduce output speed to a minimum when the clutch is disengaged. The ratio is set by the amount of hydraulic fluid between a manually operated valve 4 and an actuator. 28. The actuator 28 also communicates with a chamber 82 of a cylinder 80. Venting of the other chamber 84 of cylinder 80 when the clutch is disengaged increases transmission ratio to reduce output speed. Chamber 84 is refilled when the clutch is re-engaged. The embodiment shown has a clutch pedal 66 which closes a switch 134 when the clutch is disengaged. This operates solenoid 126 to move a valve 104 to position II to vent chamber 84. When the chamber 84 is vented and pedal 66 released, switches 136 and 142 closed, the valve is moved to position III, chamber 84 is refilled, switch 142 opens, and valve 104 returns to position I. Other embodiments use mechanical connections instead of electricity (Figs. 1 to 3, not shown). The clutch may be a reversing clutch of forward and reverse gearing.
Patent GB-1530704-A (GB)
Title: Dog grooming tool
IPC: A01K13/00
Filed: 1976-09-07
Abstract: 1530704 Grooming animals L C SCHIMOLER 7 Sept 1976 37043/76 Heading AIM A power operated grooming tool for dealing with matted hair in animals with minimum cutting of the hair comprises a comb having U-section teeth 41-45 housing reciprocating blades 21-25 having cutting edges exposed above the teeth. As shown the blades are in two interdigitated groups 21-23 and 24, 25 which counter-reciprocate; alternatively each tooth may accommodate two counter-reciprocating blades.
Patent GB-848936-A (GB)
Title: Inorganic papers and method of making same
IPC: H01H73/56
Filed: 1956-12-04
Abstract: 848,936. Mineral-fibre paper &c. GENERAL ANILINE & FILM CORPORATION. Dec. 4, 1956 [Dec. 19, 1955], No. 37047/56. Class 96. [Also in Group XXIII] In the preparation of paper from glass fibres, silica fibres, ceramic fibres, asbestos, or ceramic or glass flakes, or mica &c., or mixtures thereof with cellulosic fibres, a minor amount, e.g. 0.2 to 5.0%, of a water-soluble vinyl pyrrolidone polymer is added to the pulp suspension. The polymer may be N-vinyl-2-pyrrolidone, or a copolymer with 50% allyl alcohol, 20 diallyl phthalate, 20 isobutyl vinyl ether, 50 ethyl vinyl ether, 80 methyl vinyl ether or maleic anhydride, 40 vinyl acetate, 35 vinyl chloride, 75 acrylic acid, 20 vinyl laurate, or 15 vinyl stearate, and may be of molecular weight 300 to 70,000. It may be precipitated by a polybasic acid, a phenol, e.g. resorcinol or nonyl phenol, an alkali metal persulphate, a copolymer of maleic anhydride with vinyl ethyl or methyl ether or styrene, or with an organic diisocyanate, or alternatively by heating to 500 F. An example (1) gives the composition of glass fibres, and their length as <SP>1</SP>/ 128  to <SP>1</SP>/ 16  inch, and their diameter as 0.50 Á.
Patent GB-1113052-A (GB)
Title: Permanently buoyant articles
Inventor: GRAHAM ALLAN RALPH
IPC: B63C9/08
Filed: 1964-09-10
Abstract: An aid to swimming comprises two spherical floats of foamed or expanded plastics material and a central bar of light plastics material extending between the floats.  The floats are suitably expanded polystyrene and may be coloured.
Patent GB-905815-A (GB)
Title: Improvements in or relating to telegraph receiving systems
IPC: H04L25/20
Filed: 1960-10-28
Abstract: 905,815. Code telegraphy. SIEMENS & HALSKE A.G. Oct. 28, 1960 [Oct. 29, 1959], No. 37122/60. Class 40 (3). [Also in Group XL (c)] A double current telegraph receiving system includes two transistors, one conducting in the mark condition and the other in the space condition, which respectively energize the first and second windings of an electromagnetic receiving device. In the embodiment illustrated transistors of opposite type are used. The double current incoming line is connected at a1, b1 and has connected across it a resistor WL which presents a resistive load to the incoming line. When a1 is positive with respect to b1, the mark condition, transistor Tr2 conducts and current flows in winding II of the receiving magnet EM. When a1 is negative with respect to b1, the space condition, Tr1 conducts and a current flows in winding I of magnet EM. Fig. 2 (not shown), illustrates a system using transistors of the same type.
Patent GB-935489-A (GB)
Title: Improvements relating to jet propulsion units
IPC: F02K9/00
Filed: 1958-11-19
Abstract: 935,489. Nuclear power plant. A. R. HIGGIN. Feb. 18, 1960 [Nov. 19, 1958], No. 37167/58. Class 39 (4). [Also in Group XXVI] In a jet propulsion unit for use in air or vacuum, a gas, heated by a nuclear reactor, is applied, together with water, to a heatexchanger and the superheated steam produced is ejected through a nozzle. As shown, the heat-exchanger is formed of inner and outer parts 41, 20, the latter being formed of helical twin tubes 23. The outer passage 25 of the tubes 23 of outer exchanger 20 is supplied with water from container 38 and pipe 39. The inner passage 24 is supplied with heated reactor gas through the pipes 36, 37. The exchanger inner part 41 is supplied with heated reactor gas through pipes 47, 48, which passes through the tubes 46. The water passing forward through exchanger 20 is vaporized and is turned inwards and rearwardly by nozzle 40, between the tube 46 of the inner exchanger 41, where it is superheated and ejected through 49.
Patent GB-1057402-A (GB)
Title: Improved method of jointing belting or webbing for making endless belts
Inventor: WATTS GILBERT ERNEST
IPC: B29C65/48
Filed: 1964-09-12
Abstract: 1,057,402. Seaming non-metallic sheet material. J. H. FENNER & CO. Ltd. Sept. 13, 1965 [Sept. 12, 1964], No. 37386/64. Heading B5K. [Also in Division F2] A method of joining together the ends of a belt of woven natural or synthetic fibres, or of extruded sheet synthetic material, e.g. P.V.C., comprises cutting complementary V-serrations in the belt ends, coating the cut edges with an uncured or partly cured butadiene-acrylonitrile copolymer, fitting the complementary ends together, and curing the copolymer. The cut edges are painted with a poly-isocyanate adadhesive and a strip of uncured butadieneacrylonitrile copolymer laid between the complementary faces before they are brought together. A protective P.V.C. impregnated fabric coating may be applied in the region of the joint prior to curing the copolymer.
Patent GB-370896-A (GB)
Title: An improved reciprocating oil fuel pump
IPC: F02M59/02
Filed: 1930-12-12
Abstract: 370,896. Fuel-injection pumps. ALEXANDER, W., 167, St. Vincent Street, Glasgow, and NORTH & SONS, Ltd., 14, Soho Square, London. Dec. 12, 1930, No. 37484. [Class 102 (i).] In a fuel - injection pump the delivery is terminated by a pistonvalve m, which puts a cylinder part w in communication w i t h the suction passage s by means of a reduced portion x and passage y. Alternatively, the suction passage may open into the space surrounding the reduced portion x. The suction port v is controlled by the plunger f, the upper end of which may be bevelled, in order to press the plunger against the port v. The valve m has a swivelling connection with a sleeve l screwing into a projection h on the crosshead e of the plunger f. The timing of the termination of injection is varied by turning the sleeve l by means of a splined rod n, carrying a pinion o gearing with a rack p. The cylinders are formed with flanges q<1> secured in the framing by a cover r, in which the suction passage may be formed. The cylinders are formed with flat sides i in order to economize space.
Patent GB-1424740-A (GB)
Title: Processes for gasification with supply of heat
IPC: C10J3/46
Filed: 1973-08-08
Abstract: 1424740 Serial chambers gasification DR C OTTO & COMP GmbH 8 Aug 1973 [17 Aug 1972] 37556/73 Heading C5E A fuel and a gasification agent are brought together and treated successively in a series of treatment chambers, a heat exchanger being allotted ahead of each treatment chamber, so that an indirect heat exchange will take place between a gas heated by nuclear reactor energy and the gasification agent in each heat exehanger, and possibly also the treatment products being treated, the heat exchangers and the treatment chambers being operated in stages in such a way that the gasification agent, which has passed through the first heat exchanger is passed to the first treatment chamber together with part of the fuel, the treatment product here produced is then further heated in the next heat exchanger and is then passed to the next respective treatment chamber together with a further portion of fuel, and to the respective last treatment chamber with a final quantity of fuel. The treatment chambers may contain catalysts. The fuel mainly a hydrocarbon gas and the agent mainly steam. The quantity of fuel containing hydrocarbons, and passed to each treatment chamber, is such that, after the treatment of the fuel containing hydrocarbon, the gaseous treatment product supplied to the next heat exchanger has a methane content which, under the operating conditions of the heat exchanger, remains below the soot limit. A gas containing hydrocarbon may be preliminary transformed into gaseous fuel products containing hydrogen by connecting one or more further treatment chambers, for producing a rich gas that is to be further processed, in series ahead of the treatment chambers for the gasification of hydrocarbon fuel, in which further treatment chamber or chambers mixtures of heavy hydrocarbons with hydrogen, also with the addition of steam, are treated and the hydrogen is heated in a series-connected heat exchanger indirectly by the heated gas. The rich gas. obtained in the series connected treatment chambers is cooled and freed from sulphur before a further treatment. Gaseous or liquid fuels are gasified using jet or loop reactors and solid fine granular fuels using fluidized or turbulent bed reactors as treatment chambers. The rate of flow of products being treated in the chambers of the heat exchangers is above the rate of sinking of any solids present. Solids separators are connected after the treatment chambers. The heat exchangers are connected so that the heated gas and the agent traverse the exchangers in countercurrent to one another.
Patent GB-894677-A (GB)
Title: Slabs for use as road markings and for other purposes
Inventor: MARSDEN ANDREW
IPC: E01F9/08
Filed: 1958-11-21
Abstract: 894,677. Reinforced concrete &c. slabs ; road surface slabs. CAUSEWAY REINFORCEMENT Ltd. Nov. 23, 1959 [Nov. 21, 1958], No. 37578/58. Classes 20(4) and 87(1) A slab for use as a white line in a road or for  other purposes such as light planking for catwalks or footbridges comprises a system of wires 2 maintained under tension and extending along a rectangular frame 11 formed of thin metal strips, the wires being anchored to the strips and the frame being filled with a filler (not shown) so as to form a stressed filled slab. The filler may be of cement or bituminous composition and may be covered by a preformed strip of white wearresistant plastic. The reinforcement may be a mesh formed of longitudinal wires 2 and cross wires 3, Fig. 4. Slots in end strips 5 of the frame may be engaged over the wires 2 the end strips 5 then being engaged by lugs 7, 8 of tensioning means whereby the longitudinal wires 2 of the mesh are tensioned after which slots in longitudinal strips 11 of the frame are engaged over the cross wires 3. The assembled frame may then be removed from the tensioning means with the tension retained by the strips 11, and the filling composition introduced. Alternatively, and particularly when a cement bound filler is used,. the filler may be introduced while the frame is in the tensioning device. More than one slab may be tensioned at a time by using a long strip of wire mesh. The reinforcement may be allowed to protrude from the finished slab. In another method, the frame and tensioning wires are first assembled, then heated and dropped over locating studs in a mould whereby the wires are tensioned upon cooling of the frame and wires.