baber/WOPTO huggingface dataset:
Patent GB-896491-A (GB)
Title: Apparatus for determining physical data of a material such as density, viscosity andspecific gravity, and related derivated values, such as material levels
IPC: G01N9/00
Filed: 1958-12-23
Abstract: 896,491. Automatic liquid level control systems. AUTOMATION PRODUCTS Inc. Dec. 23, 1958 [Dec. 26, 1957], No. 41569/58. Class 38 (4). [Also in Groups XVIII, XIX and XL(c)] A device for determining physical data, e.g. density, viscosity, and specific gravity comprises a tubular portion 14 with end screw-caps 16, 18 which, with retaining discs 24, 26, form compartments for electromagnetic vibrator and detector coils 36, 38, respectively. The coils 36, 38, having permanent magnet cores 40, 42 and mounted on non-magnetic sleeves 32, 34 carried by the discs 24, 26, receive respectively magnetic armatures 56, 58 which are connected to the corresponding ends of bent flexible vibrator rods 52, 54. The latter, extending through seal supports 60, 62, at node points, in an externally-threaded boss 20 on the portion 14, are attached to an external paddle 50. In operation the boss 20 is threaded into a liquid container at the desired position so that the paddle 50 is sealed within the container. A conduit, not shown, which is screwed into an internally-threaded boss 22 on the tubular portion 14, carries a pair of lines 43, 44 which supply alternating current to the vibrator coil 36 and a pair of lines 46, 48 which lead from the coil 38 to suitable detector device. When the coil 36 is energized, the mechanical vibrations, which are induced in the armature 56, are transmitted through the rod 52 to the paddle 50 from which they are reflected through the rod 54 to the armature 58. Changes in either the frequency or amplitude of the vibrations, or in both, corresponding to variations in the level of the liquid in the container and which are picked up by the coil 38, are passed as electric signals to a detector, not shown. The device is preferably operated at the resonant frequency of the rods 52, 54 to obtain sensitive measurements, it may, however, be selected to operate above, or below, the resonant frequency to obtain modified characteristics. In a modification, for measuring, e.g., the viscosity of a liquid, a separate paddle is attached to the end of each rod 52, 54.
Patent GB-1448168-A (GB)
Title: Alkylation process
IPC: C07C15/02
Filed: 1974-09-25
Abstract: 1448168 Alkylating aromatic hydrocarbons MONSANTO CO 25 Sept 1974 [26 Sept 1973] 41642/74 Heading C5E A process for the production of an alkyl aromatic hydrocarbon comprises simultaneously introducing an aromatic hydrocarbon having at least one replaceable hydrogen atom on an aromatic ring, an olefin and a Friedel Craft catalyst, e.g. AlCl 3  into a first reaction zone maintained at a temperature from 140 to 200C. or above and a pressure sufficient to maintain the reactants substantially in the liquid phase wherein the residence time is at least 15 minutes, the amount of Friedel Craft catalyst being in the range from 0À0010 to 0À0025 mole per mole of olefin, the olefin being added at a rate from 300 to 1500 moles per hour per mole of accumulated Friedel Craft catalyst, and the ratio of alkyl groups to aromatic hydrocarbon rings in the reaction product being in the range from 0À3 to 0À9, continuously removing the reaction product from said first reaction zone and introducing it into a second reaction zone, a transalkylator, maintaining it therein at a temperature from 140 to 200 C., continuously removing the reaction product from said second reaction zone, and recovering the alkyl aromatic hydrocarbon therefrom. A halide promoter such as HCl may be used in amount 0À5-10 moles per mole AlCl 3 . Examples describe the preparation of ethylbenzene by alkylating benzene with ethylene.
Patent GB-1077295-A (GB)
Title: A composition of matter particularly suitable for use as a jacketing material for retractile cords
IPC: C08L23/16
Filed: 1964-10-13
Abstract: A retractile cord, e.g. for telephone handsets, has the cover material made form a composition comprising 100 parts by weight of terpolymer, comprising by weight 45 to 75% of propylene, less than 10% of a non-conjugated diene, the remainder ethylene, compounded with 50 to 200 parts by weight of filler, 20 to 100 parts by weight of plasticizer, 4 to 12 parts by weight of activator, 1 to 3 parts by weight of cross-linking agent and 1 to 3 parts by weight of accelerator.
Patent GB-1084788-A (GB)
Title: Improvements in or relating to agricultural mowers
IPC: A01D34/30
Filed: 1964-10-14
Abstract: 1,084,788. Mowing machines. INTERNATIONAL HARVESTER CO. Oct. 14, 1964 [Oct. 14, 1963], No. 41886/64. Heading A1F. In a mowing machine of the kind including a mower bar assembly (112) (Fig. 1, not shown), and coupling support (123) articulated to a pendular support structure 51, the pendular structure comprises a housing 50 surrounding a longitudinal frame member 15, and resilient blocks 78, 80 interposed between the frame member and the interior surface of the housing. The frame member is rigidly connected to cross struts 23, 24 of the mower frame and adjacent each end of the frame member has two semi-circular bearing members 30, 32 joined thereto by steel spring clips 37, the bearing members being journalled in circular recesses in the housing which are of slightly greater diameter than the bearing members. Upon raising the mower bar assembly by means of a hydraulic cylinder (147) and linkages (140-146) the excess weight will cause the housing to bear on the bearing members thus preventing excessive compression of the resilient blocks. In operation the cutter bar is reciprocated by a pitman 108 drive from a tractor power take off through a belt and pulley mechanism 160-162. The tension in the belt may be adjusted by actuation of nut 174 which will raise or lower the upper pulley. The resilient blocks are preferably of pure gum rubber.
Patent GB-1029160-A (GB)
Title: Improvements in and relating to a liquid mixing device
Inventor: SYMONDS ROY
IPC: B01F5/04
Filed: 1963-10-24
Abstract: 1,029,160. Supply fittings for baths and basins, reservoir brushes. WADDINGTON & DUVAL (HOLDINGS) Ltd. Nov. 5, 1964 [Oct. 24, 1963], No 42103/63. Headings A4K and A4N. [Also in Divisions B1 and F1] Venturi mixing apparatus includes a discharge nozzle 2 having a central outlet 30 surrounded by small holes 32, and a valve member 22 actuated by a three-position cam lever 26 so that it has a closed position in which it seats in the aperture 20, an open position as shown, and a position in which it closes the main outlet 30 but leaves the holes 32 open. In the second position additive from container 54 will be induced through the non-return valve 52 into the primary flow in conduits 51, 58, but in the partly open position no additive will be induced since the total area of the holes 32 is less than that of the venturi throat cross-section, and a spray of primary liquid will be discharged from the holes 32. The apparatus may be combined with a brush 64, or with a mixing tap as described in Specification 955,040 (see also the drawing of the Provisional Specification) in which case when the valve is closed the primary stream is discharged through the top. The venturi may have the proportions described in Specification 805,046.
Patent GB-1023509-A (GB)
Title: Improvements in and relating to superconductive devices
Inventor: CLARK TERENCE DANIEL
IPC: H01L39/22
Filed: 1963-10-25
Abstract: 1,023,509. Super-conductor devices. MULLARD Ltd. Oct. 15, 1964 [Oct. 25, 1963], No. 42218/63. Heading H1K. A super-conductor device comprises two electrodes between which are a plurality of tunnelling regions formed by insulating material lying between islands of super-conductor material and means for applying a magnetic field to control the phase of the super-conductor material; the arrangement provides a first value of impedance when the super-conductor material is normal and a higher value when it is super-conductive. Fig. 6 shows a cryotron comprising a gate conductor 3 separated by a silicon monoxide layer 4 from super-conductor ground plane 2 of lead on a quartz glass substrate 1. The control conductor consists of a lead strip 5separated by a silicon monoxide layer (not shown) from gate conductor 3 and a silicon monoxide layer may cover the control conductor. The gate conductor consists of a plurality of islands of tin separated by gaps of 100 and may be produced as described in Specification 1,023,519. When the tin is in its normal state, tunnelling by electrons takes place through the gaps and the layer provides a finite impedance; when the tin is superconductive, tunnelling is not possible (unless the applied voltage exceeds a certain minimum value) and the layer presents infinite impedance. The device may be used to match the low impedance of a superconductor computer store, which is connected to the control conductor, to the high impedance of a sense amplifier connected to the gate conductor.
Patent GB-895531-A (GB)
Title: Filters
Inventor: HAZELL RAYMOND RICHARD
IPC: B01D35/02
Filed: 1959-12-11
Abstract: 895,531. Filters. SPERRY GYROSCOPE CO. Ltd. Nov. 18, 1960 [Dec. 11, 1959], No. 42279/59. Class 46. A filter comprises a slab or block filter element 3 of rigid porous sintered material and housing members 1, 2 enclosing the element and conducting liquid to be filtered through an inlet passage 12 to an inlet surface thereof, defined by the housing, and filtrate from an outlet surface thereof, defined by the housing, through an annular passage 7, a plurality of passages 9 and an outlet passage 8, wherein the geometrical projection of each part of the inlet surface remains within the element until it intercepts an opposite surface of the element, the opposite surface either being supported by a complementary and imperforate surface 5 of the housing, or constituting another part of the inlet surface (as in modifications (not shown). In a modification (not shown), both the inlet and the outlet surfaces are axially spaced annular zones of the curved surface of a cylindrical filter element; an annular surface, in addition to the annular surface 6, is provided by the housing member 1 to engage the element above the inlet zone. In a further modification (not shown), the housing chamber 13 is enlarged in height and diameter, and the element increased in height such that the inlet surface of the element comprises the upper end face and the part of the adjacent side face which lies in the chamber.
Patent GB-1497335-A (GB)
Title: Spigot-and-socket pipe joint
IPC: F16L51/00
Filed: 1975-10-15
Abstract: 1497335 Pipe joints MOTOREN-UND TURBINEN - UNION FRIEDRICHSHAFEN GmbH 15 Oct 1975 [19 Oct 1974] 42293/75 Heading F2G A socket 14 at the end of a pipe 11, e.g. part of the exhaust of an I.C. engine, receives a spigot end of a pipe 12 having machined grooves 16 containing resilient sealing rings 15, e.g. of P.T.F.E. The sealing rings 15 may be of solid P.T.F.E., or slotted radially of the seal cross-section, for ease of fitting, or of a sheath of P.T.F.E. around a heat-resistant elastomeric core. The spigot end of the pipe 12 may comprise corrugations instead of machined grooves 16. Two pipes each having a socket portion may be joined by a single pipe with grooves or corrugations and sealing rings at each end.
Patent GB-1020457-A (GB)
Title: A process for the production of semi-conductor plates
IPC: B28D5/00
Filed: 1962-11-09
Abstract: Plates of semi-conductor material, e.g. silicon or germanium, are divided into sections of a desired smaller surface area by sticking the plates to one face of a foil, scoring dividing traces on the exposed, rear surface of the plates and dividing them by bending or swelling of the foil.  In one embodiment, silicon plates 3, Fig. 3 (not shown) are stuck to a P.V.C. foil 1 and then, after their exposed surfaces have been scored, as at 4, by a diamond tool, they are placed face-downwards, on a resilient P.T.F.E. slab 7 on a rigid metal plate.  Division of the sections is effected by rolling a cylindrical member 8 over the back of the foil.  The cylinder 8 may be replaced by a multi-faced prismatic roller 9, Fig. 4 (not shown), or a circular roller with spaced, radially-projecting ribs 11, Fig. 5 (not shown), the length between the edges on the prismatic member and between the ribs in the second member being equal to the distance between the score lines on the semi-conductor body.  In an alternative procedure, the foil, with the adherent semi-conductor plates, is immersed in acetone to cause the foil to swell and thereby break the plates along the score lines.  It is further proposed to use a composite foil comprising a plurality of layers having different swelling characteristics so that the foil bends on swelling. After the sections of semiconductor material have been separated they are removed from the foil backing by immersion in a solvent for the adhesive.  The Specification also describes means for accurately positioning the foil carrying the plates for breaking. Reference has been directed by the Comptroller to Specification 925,016.
Patent GB-978533-A (GB)
Title: Improvements in lubricating oil compositions
IPC: C10M145/02
Filed: 1962-11-09
Abstract: A  lubricating  oil  composition  comprises 0.001-20% of an oil soluble copolymer, of at least one ester of an ethylenically unsaturated carboxylic acid, which has been derived from a polymerization mixture comprising 0.05-5% of a compound containing more than one vinyl or  vinylidene  group.  The  vinyl  or vinylidene compound may be divinyl benzene, a divinyl ester of succinic acid, a divinyl acetal, a divinyl ether of a dihydric alcohol, butadiene-1, 3, a di- or poly-ester of acrylic or methacrylic acid with a di- or poly-hydric alcohol e.g. glycol, or alkoxylated glycol. The polymerization mixture may comprise at least one di- and one mono-ester of fumaric or maleic acid with a C3- 18 aliphatic alcohol and a vinyl ester of a C2- 6 saturated  mono-carboxylic  acid  e.g. acetic. In an example a mixture of fumarates of coconut oil alcohols (i.e. C8- 18), mono-butyl acid maleate, di-butyl fumarate and vinyl acetate was polymerized in  two  stages,  with  divinyl  benzene added in either stage, in a diluent oil and using azo-di-isobutyronitrile as  catalyst.  Further examples showed the copolymerization fumarates of C8- 18 alcohols, vinyl  acetate  and divinyl succinate, and also a mixture of polylauryl methacrylate and a copolymer of lauryl methacrylate and ethylene glycol dimethacrylate. The copolymers may be blended in a petroleum oil. Specifications 906,412 and 978,534 are referred to.ALSO:A lubricating oil composition comprises 0.001-20% of an oil-soluble copolymer, of at least one ester of an ethylenically unsaturated carboxylic acid, which has been derived from a polymerization mixture comprising 0.5-5% of a compound containing more than one vinyl or vinylidene group.  The lubricating oil exemplified is a petroleum oil of 6.7cS viscosity at 210 DEG  F., but may also be an oil of animal or vegetable origin.  Specifications 906,412 and 978,534 are referred to.
Patent GB-1014273-A (GB)
Title: Preparation of aldehydes
Inventor: COOPER LESLIE ERNEST
IPC: C07C45/73
Filed: 1963-10-30
Abstract: 2-Methylvaleraldehyde is produced by contacting propionaldehyde and hydrogen, in the vapour phase and at an elevated temperature with a catalyst comprising an aldolisation/dehydration catalyst and a palladium catalyst. The two components of the catalyst may be mixed together, used separately or together in conjunction with an inert support, e.g. carbon. When used separately the gases are first passed over the aldolisation/dehydration catalyst and then over the palladium catalyst.  The aldolisation catalyst may be alumina, silica-alumina, magnesium oxide, zinc oxide, titanium dioxide, calcium hydroxide, calcium carbonate, an alkali metal hydroxide, an alkaline salt of an alkali metal, or mixtures of two or more of these compounds.  These compounds may be in a suitable form to act as support for the palladium catalyst.  The reaction temperature may be from 100 DEG  to 350 DEG  C.  An inert diluent, e.g. nitrogen may be present.
Patent GB-1216530-A (GB)
Title: Equipment for extracting and transporting coal from two workings which extend to opposite sides of a tram road
IPC: B65G19/18
Filed: 1968-09-09
Abstract: 1,216,530. Endless conveyers. BERGWERKSVERBAND G.m.b.H. 9 Sept., 1968 20 [Oct., 1967], No. 42854/68. Heading B8A. A mining face 5 comprising two workings 1, 2 extending one on each side of a gallery is served by a single or multi-chain conveyer, wherein the upper run acts as the conveying run for the working 1 and the lower run acts as the conveying run for the working 2. In the working 2 the lower run 12 is guided from beneath the upper run 11 by a stationary guide 14 to a position in advance of the upper run in the direction of the face 5 and remains in said position until beyond the gallery whereupon a further stationary guide 17 returns the lower run to a position beneath the upper run for conventional operation in the working 1. Coal on the conveying upper and lower runs is discharged through respective apertures 15, 18 on a chain conveyer 16 extending along the gallery. A shroud (not shown) around the conveyer drive pulley 8 transfers any coal on the upper run 11 to the lower run 12 and a scraper 9 feeds coal missed by a coal cutting machine 20 on to said lower run 12. The lower run 12 may remain vertically displaced from the upper run 11 or may be mounted in the same horizontal plane thereas.
Patent GB-1073602-A (GB)
Title: Improvements in or relating to carpets
Inventor: KINGSLEY HARRY
IPC: B32B27/00
Filed: 1962-11-16
Abstract: 1,073,602. Laminates. PLASTIC COMPOUNDS Ltd. Jan. 9, 1964 [Nov. 16, 1962], No. 43355/62. Addition to 926,651. Heading B5N. A tufted carpet has applied to the back thereof, by the method of Specification 926,651, i.e. with the aid of a heated plastisol of PVC or PVC copolymer, a sheet other than of foamed synthetic plastic or foamed rubber, preferably of felt, paper or a felt-paper combination. The plastisol may be applied to the carpet back itself or to a pre-applied coating of PVC or copolymer thereon.
Patent GB-1415579-A (GB)
Title: Underground mining vehicle
IPC: E21D20/00
Filed: 1973-09-17
Abstract: 1415579 Mining machines; collecting firedamp BENDIX CORP 17 Sept 1973 [2 Oct 1972] 43439/73 Headings E1F and E1X A mining machine for use in mining rock from a tunnel face has on its chassis means 47 that permits of temporary supporting of the tunnel roof above the chassis and means 50 that allows of bolting of this temporarily supported roof permanently in position. The means 47 are preferably hydraulically powered jacks and the means 50 are rotary drive units to which can be fitted either drill driving means or roof bolt-handling means. The rock cutting means of the machine preferably comprises a jetting nozzle 22 mounted on a boom 24 extending forwardly from the chassis. Also mounted on the front of the chassis to extend about the boom is a collapsable shroud 40 for containing dust and methane gas released at the face during the cutting of the face. The shroud comprises a flexible membrane that is partially supported on arms 42 and has secured to its leading edge a tube 43 that can be inflated to cause the shroud to extend outwards to the wall of the tunnel, The rear of the shroud is connected about the intake of a conduit that extends to the rear of the machine and is associated with a pump that can cause the gas and dust to pass from the shroud through the conduit.
Patent GB-1329265-A (GB)
Title: Drafting system
IPC: D01H5/62
Filed: 1970-09-11
Abstract: 1329265 Clearing drafting rollers DEERING MILLIKEN RESEARCH CORP 11 Sept 1970 [15 Sept 1969] 43653/70 Heading DID In a drafting system having three pairs of rolls 10, 12; 14, 16; 18, 20 an apron carrying cradle 26 also supports a "U"-shaped wire member 34 carrying a scraper 28 which engages the top front roll 18 to remove fly &c. before it builds up into a lap. The member 34 is raised cyolicly by an arm 44 which engages a cam 46 fixed on the lower central roll 16. Lifting member 34 allows scraper 28 to rotate a third of a revolution and drop collected fly in so doing. The roller like scraper 28 may have any of the alternative forms disclosed in Figs. 5, 6 and 7 (not shown).
Patent GB-1277483-A (GB)
Title: Heating and cooling system
IPC: F25B30/04
Filed: 1969-09-03
Abstract: 1277483 Refrigerating CARRIER CORP 3 Sept 1969 [18 Dec 1968 (5)] 43660/69 Heading F4H The subject-matter of this Specification is substantially the same as that described in Specification 1,277,482 but the claims are concerned with an absorption refrigeration system which has a heating cycle in which a mixture of refrigerant and absorbent solution is heated in the generator and circulated through a heat exchanger.
Patent GB-1181883-A (GB)
Title: Electrical Connector
Inventor: CHIRUMBOLO JOSEPH FRANK
IPC: H01R13/426
Filed: 1967-09-26
Abstract: 1,181,883. Two-part couplings. BUNKER RAMO CORP. 26 Sep t ., 1967 [26 Sept., 1966], No. 43817/67. Heading H2E. In a cable connector whose plug and socket contacts 38, 82 are retained in bores 28 in insulating inserts 20, 76 by spring collets 44, the insulating material of the inserts is sufficiently rigid to withstand deforming forces exerted by fingers 60 on the collets when they are spread by a tool (68, Fig. 3, not shown) to release the contacts. In each half of the connector the insert 20, 76 is secured to a rear grommet 34 and to an outer shell 18, 14 by a spring collar 22. Each collet 44 has a groove which snapengages an annular ridge 66 on the corresponding bore 28, and its fingers 60 have shoulders at their forward ends which engage shoulders 42, 84 on the contacts.
Patent GB-1253760-A (GB)
Title: Urethane/siloxane polymers and preparation thereof
IPC: C08G18/61
Filed: 1969-09-04
Abstract: 1,253,760. Films. AVCO CORP. 4 Sept., 1969 [6 Sept., 1968], No. 43930/69. Heading B5B. [Also in Divisions A5 and C3] Flat and tubular films may be cast from solutions of block copolymers containing polysiloxane and polyetherurethane of polyesterurethane segments joined by Si-N bonds. In examples tubes are cast on polished stainless steel mandrels, either simply or followed by wrapping with a polyester fabric or nylon filament and a second cast film of the copolymer, using solutions of a copolymer containing dimethylsiloxane segments and polyurethane segments derived from polypropylene glycol and toluene diisocyanate. Flat films are prepared by casting solutions on to a flat surface, allowing them to dry in air at room temperature, curing the block copolymer by heating at 60 C. for 1 hour and finally stripping the films from the smooth surface.
Patent GB-1401333-A (GB)
Title: Vacuum cleaning systems
IPC: A47L9/18
Filed: 1972-09-25
Abstract: 1401333 Suction cleaning systems CLARKSON INDUSTRIES Inc 25 Sept 1972 [10 Nov 1971] 44286/72 Heading A4F [Also in Division B1] A vacuum cleaning system for a building comprises a vacuum cleaning tool connected to a wet gas scrubber 14 for separation of the dust and an exhauster 12 for inducing a vacuum. In the scrubber Fig.3 (not shown) the contaminated air passes through a body of cleaning liquid (28) via an annular passage (26), the contaminant being removed via valve (40).