baber/WOPTO huggingface dataset:
Patent GB-298736-A (GB)
Title: Improvements in flotation processes for the treatment of coal, ores, and the like
IPC: B03D1/008
Filed: 1927-08-19
Abstract: 298,736. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges,). Aug. 19, 1927. Oxygenated organic compounds. - Products obtained by oxidizing soft or solid hydrocarbons. viz., paraffin waxes such as crude, soft, or hard paraffin wax, or waxes such as montan wax and the like, at not over 200‹ C. so that substantially no decomposition occurs to compounds having a lower number of carbon atoms, are used as flotation agents in the treatment of ores, coal, &c. The oxidation may be effected by blowing air through the molten. material. The products are stated to contain acids and esters of high molecular weight and oxygen compounds of unknown constitution, and are preferably neutralized, partly or completely, with bases such as ammonia.
Patent GB-1520196-A (GB)
Title: Alarm and theft prevention apparatus
IPC: G08B13/14
Filed: 1976-05-27
Abstract: 1520196 Theft alarms W HOLZER 27 May 1976 22047/76 Heading G4N An alarm and theft prevention apparatus comprises a transmitter I which transmits a pulsed and modulated signal (radio, light or ultrasonic) and a receiver II which is kept in tune with the transmitted pulsed and modulated signal, wherein the receiver checks the presence of the transmitted signal, demodulates the resultant electrical signal and passes the demodulated electrical signal to a threshold detector 8 which causes energization of a signal device if the amplitude of the demodulated electrical signal falls below a reference level. The transmitter is preferably accommodated on an article to be guarded and the receiver is carried by the guard or messenger. Alternatively the receiver is on the article with the transmitter on the guard. A plurality of articles may be monitored either using a single transmitter and a plurality of receivers or vice versa.
Patent GB-614616-A (GB)
Title: Improvements relating to the charging of cigarette and pipe lighters
IPC: F23Q2/52
Filed: 1946-07-24
Abstract: 614,616. Cigarette lighters, recharging. STIRLING, J. H. July 24, 1946, No. 22081. [Class 75 (iii)] [Also in Group XVIII] A cigarette lighter recharging apparatus consists of a fuel container 1, Fig. 1, from which a wick 6 extends through a conduit 5 having a nozzle 5a adjacent a pivoted platform 10 adjustable by a slider 12. The lighter is charged by placing it on the platform with its wick in contact with the wick 6 to allow the fuel to seep through into the lighter filling. An air vent 7 is provided in the nozzle 5a. The filling cap 4 of the container 1 is formed with a projection 4a to receive the cap 8 of the nozzle 5a during recharging. In another construction shown in Fig. 5 the charging wick 17 extends through a conduit fitting 23 into a measuring vessel 16 pivotally mounted in a glass bottle or other container 22 having a curved seating surface 22b on which it may rest during the recharging operation. The vessel 16 is filled by tilting the container 22 before the recharging operation. The lighter may be provided with an additional wick normally covered by a removable cap for recharging.
Patent GB-482696-A (GB)
Title: Improvements in machine for die-casting bezels for fragile inserts
IPC: B29C45/14
Filed: 1937-08-11
Abstract: 482,696. Injection moulding. TRIGGS, W. W. (Erie Resistor Corporation) Aug. 11, 1937, No. 22131. [Class 87 (ii)] Relates to a machine for die-casting plastic material such as cellulose acetate to form a bezel with a glass cover-plate permanently set therein, and consists in means for positioning the edge of the cover-plate in a mould cavity of a split mould, the positioning means being provided with a clearance space between them and the edge of the cover, so that when plastic material is forced into the mould cavity, it flows into the clearance space. The mould comprises a movable part 6, Fig. 2, having a mould cavity 7 and a fixed part 4 having a complementary cavity. The cover-plate 67, Fig. 9, is carried by a rubber pad 78 on a handoperated rod into engagement with initial centring means comprising pins 74 forced by a spring-controlled plate 69 towards the mould part 6. The part 6 then moves to the left and engages pins 80 on the plate 69 to withdraw the pins 74. The plate 67 is then engaged by a sharp edge 81 of the mould part 6 and a sharp edge 8a of a spring-controlled plate 8 carried by the part 4. The plate is then moved into the positioning pins 64 which are notched at 65 to form shoulders 66 separated by a clearance space 68 from the edge of the cover-plate 67. When the mould is closed, plastic material in granular form is fed from a hopper by a plunger into a heated plunger-compression chamber and is forced into the mould cavity to form the bezel around the cover-plate. The mould part 6 is provided with a pipe 82 through which cold water is passed. When the mould is opened, the bezel is withdrawn together with the material in the sprue openings which form integral projections by which the bezel may be secured to a support.
Patent GB-801392-A (GB)
Title: Process for the manufacture of n-tert-octylbenzthiazyl-2-sulphenamides
Inventor: FIELDEN RICHARD JAMES
IPC: C08K5/00
Filed: 1955-08-02
Abstract: Compounds of the formula <FORM:0801392/IV (a)/1> are used as vulcanization accelerators for rubbers, with or without the usual adjuvants such as fillers, antioxidants and pigments, e.g. zinc oxide, furnace black and stearic acid.  The rubber may be natural or a synthetic polymer of butadiene, isobutene or 2-chlorobutadiene, or a copolymer of these with acrylonitrile, styrene or methyl methacrylate.ALSO:Sulphenamides of the formula <FORM:0801392/IV (b)/1> are made by reacting benzthiazole-2-sulphenamide with a t-octylamine, preferably using excess of the latter.  An example is given of the reaction between benzthiazole-2-sulphenamide and 1 : 1 : 3 : 3-tetramethylbutylamine.
Patent GB-532817-A (GB)
Title: Improvements relating to surface markings and signs for roads and the like
IPC: E01F9/06
Filed: 1939-08-01
Abstract: 532,817. Road-surface marking-slabs. SHAW, P. Aug. 1, 1939, Nos. 22256 and 24100. [Class 87 (i)] [Also in Group XVIII] A road &c. surface marking comprises a slab of material let into a shallow cavity in the surface, the slab being furnished with substantially horizontal pockets or tunnels A extending longitudally or crosswise. The edges of the slab are formed with serrations B, which may extend partially or wholly thereacross. Bituminous material or cement is poured into the pockets, tunnels and spaces C between the serrations B prior to the placing of the slab in location, and it is fixed therein either by heating the contacting edges of slab and road channel or by pouring molten bitumen &c. in between. A longitudinal channel D, also filled in with bitumen, may extend along one face of the slab.
Patent GB-1309129-A (GB)
Title: Fuser system for copier machines
IPC: B65H3/44
Filed: 1970-05-08
Abstract: 1309129 Feeding and delivering sheets XEROX CORP 8 May 1970 [14 May 1969] 22292/70 Heading B8R [Also in Divisions G2-G3] An electrophotographic copier (see Division G2) comprises three vertically spaced trays each supporting a stack of copy sheets and each having guides 416-418 adjustable for different sheet sizes, drag rollers 441 and feed rollers (451, Fig. 21, not shown). A handle (488, Fig. 27, not shown) simultaneously raises the feed rollers (451) of all the trays for loading. Automatic feed may be suspended for manual feed. The sheets are fed through the copier by grippers 503 comprising rotatable grooved rods 520. A guide mechanism (616, 618, 620, Figs. 33-36, not shown) lifts and pushes the sheet against the copying drum for image transfer. After transfer a release mechanism (Figs. 37-40, not shown) rotates the rods to release the sheets which are carried upwards by an endless belt system (Fig. 41, not shown) to a tray (20).
Patent GB-353252-A (GB)
Title: Improvements in or relating to slicing machines
IPC: B26D7/00
Filed: 1930-07-24
Abstract: 353,252. Slicing - machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. and THOMAS H., Aden Road, Ponders End, Middlesex. July 24, 1930, No. 22304. [Class 28 (ii).] Relates to clutches for locking together relatively slidable parts of slicing- machines, e.g. locking the sleeve of the clamping bar to its supporting post, and comprises means for excluding dirt, grease, &c. from the working parts. As shown in Fig. 1, the clamping- bar sleeve 2 is slidable on a post 1 and is locked by a tilting ring 3 having a dirt-excluding skirt 4. The skirt is pivoted on a pin 5 which passes through a vertical slot in the skirt and is screwed into the sleeve, whilst a spring 6, housed in a recess in the sleeve, normally tilts the ring into the locking position from which it is released by swinging up the handle 7 so that the abutment 9 presses against the skirt. As shown in plan in Fig. 4, the clamping bar 10 is pivoted to a block 12 adjustably slidable in a channel guide 13. The bar is retained in the desired angular position by a telescopic strut 14, 15 the parts of which are locked by a tilting ring 18 having a finger piece 22 for manipulation. The ring has a dirt-excluding skirt 19 and is pivoted at 20 to an enlargement of the part 15, a spring 21 normally tilting the ring to the locking position. A lip 15a assists in the exclusion of dirt. The parts 12, 13 may be replaced by a sleeve and post. The invention may be applied to the apparatus described in Specifications 276,917, 295,543, 328,541 and 328,966, [all in Class 28 (ii), Kitchen and like appliances &c.].
Patent GB-262192-A (GB)
Title: A new or improved solder for aluminium or its alloys and process for using same
IPC: B23K35/28
Filed: 1925-09-08
Abstract: 262,192. Line, A. J. Sept. 8, 1925. Soldering; soldering-irons. - A solder for aluminium and its alloys consist of a mixture of about 3 parts by weight of silver filings and 12 parts by weight of aluminium filings. In using this mixture or a solder consisting of a silveraluminium alloy, a nickel soldering-bit is used.
Patent GB-1260945-A (GB)
Title: Microtome
IPC: G03B17/12
Filed: 1969-05-02
Abstract: 1,260,945. Control of several motors. CARL ZEISS-STIFTUNG, [trading as CARL ZEISS]. 2 May, 1969 [17 May, 1968], No. 22455/69. Heading H2J. [Also in Division G2] In a control system for a microtome having a fixed knife (14, Fig. 4, not shown) and a movable specimen holder (18), a motor 138 (Fig. 2a) rotates a lever (110, Fig. 4) to drive the holder in the cutting direction and two motors 64, 64a (Fig. 2) operate two wedges (28, 30, Fig. 4) to move the holder in the feed direction. The motor 138 is compound wound and is fed from a tapped transformer 150 through a rectifier 160 whilst its field winding 140 is fed through a rectifier 162. For drive reversal, the pole windings 142, 144 are excited in the reverse sense by reversing the switches 146a, 148a controlled by relays 146, 148. A resistor 158 acts as a current surge limiter, and so provides built-in braking, whilst a mechanical brake (Fig. 3, not shown) is controlled through a magnet (165). A signal lamp 126 (Fig. 2) is put across the motor circuit AB. The motors 64, 64a are controlled in part by switches 100, 102, 104, 106 which are suitably positioned to limit the movements of the wedges (28, 30) in the feed direction.
Patent GB-844540-A (GB)
Title: Improvements in or relating to testing agents for detecting flaws in articles
Inventor: BRITTAIN PHILIP IAN
IPC: G01N21/91
Filed: 1955-08-04
Abstract: 844,540. Luminescent materials. DE HAVILLAND AIRCRAFT CO. Ltd. Aug. 3, 1956 [Aug. 4, 1955], No. 22488/55. Class 39(1). [Also in Group XIX] A testing agent for use in detecting flaws in articles comprises a liquid vehicle having dissolved therein a fluorescent substance the intensity of fluorescence of which, in the vehicle. when exposed to ultra-violet light, is increased by a second fluorescent substance incorporated in the vehicle. Two or more fluorescent substances are dissolved in a penetrating oil, each of the fluorescent substances being selected to form a series in which the emitted radiation band of each substance of the series falls within, overlaps or contains the absorption wavelengths of the next succeeding substance in the series. In particular one of the fluorescent substances may comprise at least one of the dyes 2À7- di-methyl-coeroxen and 3À9 perylene di-carboxylic acid di-isobutyl ester and the other fluorescent substance comprises at least the dye 2À5-di-hydroxy terephtalic acid di-ethyl ester. One or more of the fluorescent substances may absorb wavelengths not strongly absorbed by the other components in the solution and emit light of wavelengths falling within, overlapping or containing the wavelengths emitted by one or more of the other components of the testing agent. The testing agent may incorporate a non-ionisable emulsifying agent free of ash forming constituents as described and claimed in Specification 839,640 (see Group XIX). Specification 642,402 also is referred to.
Patent GB-1491126-A (GB)
Title: Process for preparing olefinic nitrilevinyl aromatic resins
IPC: C08F212/10
Filed: 1975-05-23
Abstract: 1491126 Molecular weight modifier STANDARD OIL CO 23 May 1975 [17 June 1974] 22599/75 Heading C3P Tertiary butyl mercaptan is used preferably in an amount of 0À3-1À0 part by wt. per 100 parts of monomer as a molecular weight modifier in the copolymerization or graft copolymerization of an aerylonitrile and a vinyl aro-  matic in an aqueous medium, the monomers comprising at least 50% by wt. of CH 2 CRCN where R is hydrogen, halogen or C 1 -C 4  alkyl and up to 50% of a vinyl aromatic and in the case of graft polymerization, in the presence of up to 40 parts by wt. per 100 parts of monomers of a rubbery polymer of 50-95% butadiene or isoprene and the remainder unsaturated nitrile as defined above and/or vinyl aromatic monomer. Emulsion polymerization is exemplified using azobisdirnethylvaleronitrile as initiator.
Patent GB-1007486-A (GB)
Title: Improvements in or relating to electric switchgear
Inventor: CHAPMAN LESLIE VICTOR
IPC: H01H33/72
Filed: 1960-06-28
Abstract: 1,007,486. Heavy - current switches. ENGLISH ELECTRIC CO. Ltd. Sept. 20, 1961 [June 28, 1960], No. 22666/60. Heading H2B. In an electric switch in which the contacts are separated inside an insulating part the area of the insulating part exposed to the arc is protected by a layer of refractory insulating particals substantially covering a bonding agent on the area of part. In Fig. 2, a nozzle fixed contact 25 and blast-operated movable contact 26 are housed in an insulator 22 coated with the particles 30 on an epoxy resin-bonding agent. The material may be fused quartz, porcelain, alumina, glass or fused glass and mica material, an essential requirement being that it protects the insulator from ultra-violet and infra-red radiations. Specification 1,007,488 which is divided from this Specification relates to methods of manufacture of insulators coated on internal surfaces with particles of refractory material.
Patent GB-679079-A (GB)
Title: Improvements in, or relating to, automatic valves for compressors and similar apparatus
Inventor: MARTINEAU STEPHEN FELIX
IPC: F04B39/10
Filed: 1950-09-15
Abstract: 679,079. Non-return valves. COMPRESSOR ACCESSORIES, Ltd. Sept. 15, 1950, No. 22688/50. Class 135. An automatic valve for compressors &c. comprises one or more spring-loaded annular valve members 5 of such section as to present two diverging faces to the fluid flow as the valve opens, and coacting with chamfered seats 12 in a ported seat member 7. A ported stop plate 10 limits the opening movement of the valve member so that it never completely leaves the seat opening and cannot, therefore, be displaced wholly to one side thereof. The valve member is self-centring during closure by virtue of its shape. The loading spring 9 is of undulating and gapped, annular, form.
Patent GB-1321745-A (GB)
Title: Thin walled nestable container
IPC: B65D1/26
Filed: 1971-04-19
Abstract: 1321745 Nestable container CARTHAGE CUP CO 19 April 1971 [2 March 1970] 22716/71 Heading A4A A nestable container formed from a thin sheet of plastics material, comprises a bottom, a side wall 14 extending upwardly and outwardly from the bottom, an annular shoulder and a rolled lip 20, the side wall 14 being flared outwardly to form the lower surface 16 of the shoulder and tapered inwardly to form the upper surface 18 of the shoulder and the outside cross-sectional radius of the lip 20 being the same as the outside cross-sectional radius of curvature of the lower surface 16 of the shoulder. The maximum outside diameter of the shoulder is greater than the minimum inside diameter of the rolled lip so that when containers are nested the lower surface 16 of the shoulder of one container rests on the rolled lip of the container below it.
Patent GB-1452990-A (GB)
Title: Devices for cutting sheet material
IPC: B23K26/10
Filed: 1974-05-21
Abstract: 1452990 Cutting by laser beam G STUMPF 21 May 1974 [22 May 1973] 22762/74 Heading B4B A device for cutting sheet material comprises a first carriage 2 movable on a support means 1, a second carriage 4 movable on the first carriage, first and second optical deflection means 20, 30 mounted on the first and second carriages respectively, and a laser gun 9 fixed relative to the support, the arrangement being such that in operation of the device a laser beam 11 from the laser gun is deflected by the optical means 20 towards the optical means 30 for deflection thereby towards the sheet material. The carriage 2 is movable on rails 3 and driven by a motor 6, the carriage 4 being movable transversely on rails 5. The first optical deflection means 20 comprises a mirror 24, Fig. 2, mounted in a frame 23 which is pivoted about an axis (26), Fig. 3 (not shown), the frame (22) being pivoted about an axis 25 in a frame 21; the frame 21 is pivotally-mounted about a further axis 27 on a plate 12, Fig. 1, secured to the carriage 2. The frames 22, 23 are adjusted by screws 28, 29. The second optical deflection means comprises a mirror 36, Fig. 5, mounted in a plate 32 connected to a carrier plate 31 by three adjusting screws 34; the plate 31 is pivotally mounted on a plate 39 connected to a block 37. The beam is deflected by the mirror 36 through a bore 38 in the block to a focusing device 13. In a modification, a mirror (56) Fig. 6 (not shown) may be adjustably mounted via three screws (53), (54), (55) on an L-shaped bracket (51) which may be pivotally connected to the carriage plate 12, the latter arrangement replacing the optical device of Fig. 3 (not shown).
Patent GB-1127124-A (GB)
Title: Improvements in control devices for materials testing machines
Inventor: WAREHAM ERIC MAYNARD
IPC: G01N3/08
Filed: 1965-05-28
Abstract: 1,127,124. Electric correspondence control systems. ENGINEERING LABORATORY EQUIPMENT Ltd. and E.M. WAREHAM (MEASURING SYSTEMS) Ltd. May 24, 1966 [May 28, 1965], No.22803/65. Heading G1N. [Also in Division H2] In a load testing machine, e.g. for compression testing of concrete or tensile testing of metals, the rate of loading is controlled by comparing a signal representative of the actual load with a signal which is varied at the desired rate of loading and which at any instant is representative of the instantaneous desired load, the difference signal being used to control the loading manually or automatically. In the embodiment a load measuring and a reference strain gauge are connected to two output terminals 3b, 3a, Fig. 1, of transducer 1 connected to the bases of transistors TR6, TR7 of a differential amplifier. The amplifier is connected to a cathode follower circuit including transistors TR8, TR9, the base of the latter transistor being connected to the slider of a potentiometer 4 which is moved according to the desired loading rate by a stepping motor energized by a variable frequency oscillator, Fig. 2 (not shown), (see Division H2). The difference signal is indicated on meter 5. The load transducer may alternatively be a hydraulic pressure transducer in the hydraulic liquid supply of the machine.
Patent GB-599805-A (GB)
Title: Improvements relating to soldering
IPC: B23K35/36
Filed: 1944-11-17
Abstract: A flux for soldering consists of a solution or dispersion of a hydrohalide of hydrazine in a vehicle.  1 to 10 per cent of hydrazine hydrochloride by weight in water, methylated spirit, glycerine or ethylene glycol may be used as a liquid flux and 0.5-0.75 per cent in resin may be used as a solid flux.  In either case a wetting agent may be added.
Patent GB-1482226-A (GB)
Title: Rotary electrical machine
IPC: H02K55/00
Filed: 1975-05-23
Abstract: 1482226 Rotary electrical machines with D.C. excitation AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 23 May 1975 [7 June 1974] 22956/75 Heading H2A A rotary electrical machine comprises an annular rotatable D.C. energized superconducting field winding 22 arranged in a cryostat 24, polyphase stator windings 12 on either side of the field winding 22 and producing a field which rotates at the same rate as the field produced by the field winding 22, and electrically conductive rotary means 18, 18a carried by. a rotatable shaft 15, 15a and disposed between the field winding 22 and the stator windings 12, the conductive means 18, 18a carrying in operation of the machine currents which produce a field which counteracts the torque exerted on the field winding by the currents in the stator windings 12. In the motor shown, the conductive means 18, 18a form two plates, bolted together at their peripheries, and mounted on separate shaft portions 15, 15a. The conductive means could alternatively be formed by polyphase windings (not illustrated) connected to an external circuit. The cryostat 24 is mounted on low thermal conductivity supports 21 on bearings 20, 20a, and liquid helium is supplied through a duct in the shaft portion 15a, as described with reference to Fig. 2 (not shown). A vacuum pump (40) is mounted to rotate with the rotary conductive means.
Patent GB-886438-A (GB)
Title: Improvements in or relating to vaned wheel propellers
IPC: B63H1/10
Filed: 1959-07-04
Abstract: 886,438. Paddle-wheels. BROWN BROS. & CO. Ltd., and DONALDSON, R. J. July 4, 1960 [July 4, 1959], No. 23045/59. Class 4. A vaned wheel propeller unit for attachment to a ship's hull incorporates a supporting structure, two axially spaced bearings 4, 5, at least one of which is adapted to resist axial thrust, a rotor wheel 2 presenting a stub shaft rotatable in the bearings, and driving means for the rotor wheel supported by the structure. The casing 1, attached to the ship's hull, and the cover plate 6 carry bearings 4 and 5 respectively. Casing 9, motmted on plate 6, encloses the mechanism 10 which alters the pitch of the vanes of rotor wheel 2, which is driven by the meshing of driving pinion 8 with gear ring 7, the latter being gripped between stub shaft 3 and its extension 3A.