baber/WOPTO huggingface dataset:
Patent GB-852144-A (GB)
Title: Catalytic reduction of dinitrotoluenes
Inventor: GARDNER CYRIL
IPC: C07C209/36
Filed: 1958-04-16
Abstract: Tolylene diamines are produced by reducing dinitroluenes with hydrogen in the presence of a platinum or palladium catalyst, the reaction being carried out in an aqueous alcoholic medium containing at least 10 parts by weight of a lower aliphatic alcohol per 100 parts by weight of water.  An aqueous solution of methanol, ethanol, isopropanol, n-propanol or t-butanol may be used as reaction-medium. The solution preferably contains between 55 parts and 95 parts of alcohol per 100 parts of water. In an example, 2,4-diaminotoluene is produced by the action of hydrogen on 2,4-dinitrotoluene, the reaction being carried out in the presence of a palladium-on-carbon catalyst and an isopropanol-water mixture containing 40% of isopropanol. Reducttion of 2,6-dinitrotoluene may also be carried by the process.
Patent GB-779843-A (GB)
Title: Improvements in or relating to magnetic switching circuits
IPC: H03K3/45
Filed: 1955-04-27
Abstract: 779,843. Digital electric calculating apparatus. WESTERN ELECTRIC CO., Inc. April 27, 1955 [April 27, 1954], No. 12154/55. Class 106 (1). [Also in Group XXXIX] In a magnetic switching circuit comprising stages each including a pair of magnetic cores having input, activating and output windings thereon, a pulse is applied to an input winding to set one core of each pair dependent on the value of an input variable associated with the stage, and means including the activating windings reset the cores and apply an output pulse to the output windings which are arranged in a branching array from stage to stage so that there is only one possible path for the output pulse through the array for each combination of values of the input variables. The binary serial adder shown has a switch circuit with three stages associated with a carry c and input variables a, b-respectively, and a carry storage circuit comprising a further pair of cores 62, 66. In the first switch stage, the upper core 10 is set for c = 0 and the lower core 11 for c = 1. In the second stage, a pulse from source 22, representing a = 1, is applied to input winding 21 to set lower core 13 and to winding 20 to prevent the setting of upper core 12; in the absence of such a pulse, when a = 0, core 12 is set by a pulse from source 25. The third stage is similarly controlled by source 25 and " b " source 26. The switch cores are subsequently reset by a pulse from source 32 (out of phase with the other pulse sources) which passes through series-connected activating windings 31, and then through the branching array of output windings 35, 36, 38-41 and 43-48, only one path through these windings being possible, as in the similar switching circuits described in Specification 762,930. A pulse then appears at one of terminals T0- T3 which correspond to 0-3 " 1 "s respectively; a pulse at T0 or T1 sets core 62 to represent c = 0 and a pulse at T2 or T3 sets 66 to represent c = 1; and terminals T0, T2 and T1, T3 are connected through core windings to output terminals 76 and 75 corresponding to a sum digit s of 0 and 1 respectively. The carry output from windings 71, 72 is fed back to the input windings of cores 10, 11 when a resetting pulse is applied to cores 62, 66 from source 69 in phase with the pulses from sources 22, 25, 26.
Patent GB-201619-A (GB)
Title: Improvements in and relating to vapour burning stoves and lamps
IPC: F23D11/44
Filed: 1922-05-01
Abstract: 201,619. Brownsdon, H. W., and Kynoch, Ltd. May 1, 1922. Vaporizing-apparatus.- The tubular vaporizer of a vapour stove or lamp is fitted with an inner tube at which the vaporization of the oil mainly takes place. Fig. 1 shows a vapour burner comprising a burner cup 4, an outer vaporizing tube 2, an inner vaporizing tube 1, and a vapour nipple 3. An asbestos plug 6 may be fitted at the bottom or near the. middle of the tube 1. Holes 5 for the passage of vapour are formed in the tube 1 at the top and also just below the .asbestos plug when fitted at the middle of the tube. The cup 4 is brazed or otherwise secured to the tube 1. The tube 1 may be brazed to or screwed in the tube 2. Specification 15908/97, [Class 126, Stoves &c.] is referred to. The Provisional Specification states that the vaporizer may consist of more than two concentric tubes.
Patent GB-1510129-A (GB)
Title: Portable artificial kidney system
IPC: A61M60/851
Filed: 1975-03-24
Abstract: 1510129 Haemodialysers SANDOZ Ltd 24 March 1975 [27 March 1974] 12254/75 Heading A5R [Also in Divisions Bl and Fl] A haemodialyser having a blood circuit 2 and a dialysate circuit 6 includes in each circuit a pumping element 14, 52 comprising a flexible casing which is alternately compressed and released to cause flow of fluid in the respective circuit. Each respective pumping element may be provided by a) a separate pump having a single flexible casing b) one of the casings of a single pulsative pump having two independent flexible casings or c) both flexible casings of a full-cycle pump. The dialysate circuit includes an accumulator 66 which receives dialysate after treatment in a chemical cannister 46 and compensates for changes in volume of the dialysate circuit due to operation of the pump. An expansible collector 70 having a one - way valve inlet 72 relieves the dialysate circuit of excess liquid passing into it during dialysis in the chamber 38.
Patent GB-419034-A (GB)
Title: Improvements in or relating to calendars
IPC: G09D3/08
Filed: 1934-04-24
Abstract: 419,034. Calendars. HALEY, M. C., 7536, Oakland Avenue, Detroit, Michigan, U.S.A. April 24, 1934, No. 12280. Convention date, April 24, 1933. [Class 106 (iv).] In a perpetual calendar, the date numbers are arranged on a fixed member 9 and adjacent to them is a rotatable disc 6 on which are printed four arrows a, b, c, d. The disc 6 is set at the beginning of the month so that the arrows indicate the Sundays. If the first arrow indicates the 1st, 2nd or 3rd of the month, the month may then have five Sundays and a slit 17 in the disc 6 reveals one of three fixed arrows e, f, g, the arrow thus revealed pointing to the fifth Sunday. The month names are carried by a rotatable ring and exposed through an aperture 15.
Patent GB-733729-A (GB)
Title: Improvements in or relating to processes for enamelling electric conductors
IPC: B05D7/16
Filed: 1953-05-04
Abstract: In making insulated electric conductors provided with an insulating coating of a polyvinyl acetal synthetic resin, a thin film of a protective substance consisting of an oil-resinous enamel is applied to the outer surface of the insulating coating. The insulating coating may comprise cresolformaldehyde resin, polyvinylaldehyde resin, cresol and petroleum.  The protecting enamel may comprise dehydrated castor oil, phenolic resin modified with resinic acid, cobalt-base drying agent, benzine and turpentine oil.  Preferably the two coatings have the same curing time at the same temperature.  As shown, copper wire 9 passes from an unwinding reel 1 over a lower guide pulley 2, through a trough 3, through a dosimeter 5 having dieplates or felts for regulating the thickness of the coating and finally to a curing oven 6.  By means of multiple guide pulleys 7 and 2, the wire makes ten passages through the polyvinylacetal enamel and two passages <PICT:0733729/III/1> through the oil-resinous enamel contained in a trough 4 and is finally collected on a winding reel 8. Specification 698,605 is referred to.
Patent GB-526801-A (GB)
Title: Means whereby insulating or other material in sheet or slab form may be attached to steel frame buildings
IPC: E04B9/24
Filed: 1939-03-11
Abstract: 526,801. Wall and roof coverings. INKLEY, B. March 11, 1939, No. 12341/40. Divided out of 526,291. [Class 20 (iv)] Means for attaching sheets or slabs to the roofs or walls of steel-frame buildings comprises a supporting-member 2 for engaging a purlin &c. 1, the sheets &c. 6 being clamped between a tie-section strip 5 and a flat strip 7, Figs. 1 and 2, or between a pair of tee-section strips 5, 5a, Fig. 3, the strips being connected by self-tapping screws 8. As shown, the lower end of the supporting-member 2, which is hooked over the purlin 1, is formed with an eye 3 to take an attachment-bolt 4. Supporting-members of the kind described in Specification 526,291 may be used.
Patent GB-1085536-A (GB)
Title: Disposable cup
IPC: B65D1/26
Filed: 1965-03-23
Abstract: 1,085,536. Plastic cups. BILLINGSFORSLANGED A.B. March 23, 1965 [March 24, 1964], No. 12345/65. Heading A4A. [Also in Division F4] One or more heat-insulating layers 3 of porous crepe tissue paper are applied to one or more stiffening layers 3 of paper or cardboard provided on at least part of the outer surface of a disposable, thin-walled plastic cup 1.
Patent GB-117335-A (GB)
Title: Improvements in Moulds for Making Blocks in Terra-cotta, Cement, Artificial Stone or the like.
Inventor: COATES HERBERT
IPC: B28B7/00
Filed: 1917-08-29
Abstract: 117,335. Coates, H. Aug. 29, 1917. Moulds.-A mould for terra-cotta, cement, artificial stone, &c. blocks comprises a fixed base A to which are detachably secured by thumb-screws E and hinges F a back C, and sides D, and a front B which is also slidably adjustable upon the base A by slots H<1>. The sides are clamped at the front by a locking-bar L and at the back by thumbscrews M carried by hinged pieces N engaging slotted brackets 0. A plaster mould bottom I is adjustably supported by bolts J secured to a wooden core K and engaging the slots H<1>. The mould slides are furnished with plaster linings Q. End blocks and facing plates may be inserted within the moulds. After moulding, the block is removed by inverting the mould, releasing the clamps and hinge fastenings, opening and detaching the front sides. and back, and removing the base with the bottom mould.
Patent GB-1219983-A (GB)
Title: Improvements in and relating to semiconductor materials
Inventor: MATSUO YOSHIHIRO
IPC: H01L41/39
Filed: 1968-03-14
Abstract: 1,219,983. Piezoelectric ceramics. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 14 March, 1968 [14 March, 1967; 23 March, 1967], No. 12461/68. Heading C1J. A semi-conductive piezoelectric ceramic has the formula x + y + z = 1 and has a resistivity not greater than 7 x 10<SP>8</SP> ohm./cm. NiO 0À3 to 1% b.w. can be present. The ceramic is obtained by heating an appropriate mixture of the oxides at 1100- 1300 C. for at least 10 mins in an O 2  deficient atmosphere exemplified by N 2 , Ar, H 2  and their mixtures. Prefiring at 850 C. can be included. Reference has been directed by the Comptroller to Specification 1,066,752.
Patent GB-474162-A (GB)
Title: Improvements in door handles and the like
IPC: E05B1/00
Filed: 1936-05-04
Abstract: 474,162. Door handles; towel rails. NETTLEFOLD & SONS, Ltd., and KETLEY, A. J. May 4, 1936, No. 12558. [Classes 52 (i) and 52 (v)] A bar 1 is secured to a door or other surface by legs 2 with oppositely screwed ends engaging complementary bosses 9, 14 or sockets on the bar and surface.
Patent GB-574634-A (GB)
Title: Improvements in or relating to portable chairs for babies and young children
IPC: A47D13/02
Filed: 1944-07-04
Abstract: 574,634. Litters or chairs. PUGH, C. A. July 4, 1944, No. 12700. [Class 108 (i)] A portable chair for transporting a baby or child comprises a rectangular frame covered by canvas to form a seat and a leg support and a pair of slings are associated with the frame whereby the chair can be supported in various positions. As shown the chair comprises side bars 1, 2 connected by transverse bars 3, 4, 5 and a canvas strip 10 secured to the bars. The bar 5 forms a leg rest and gussets 11 attached to the sides 1, 2 and to the canvas 10 enclose the seat and back. A transverse strap 12 and a longitudinal strap 13 secure the child in the seat. An endless rope 8 passes through holes 6 and 7 in the side frames and around the bars 3, 5 to form slings which are adjustable by cleats 9 to vary the posture of the child and also to compensate for the difference in height of two persons carrying the chair. The slings may be webbing, leather, &c. attached to the side frames. Elongated slots may be formed above and below the bar 5 so that the chair can be fitted with a frame provided with wheels and having detachable fastenings, the frame may be collapsable.
Patent GB-1472823-A (GB)
Title: Fastener
IPC: F16B13/12
Filed: 1975-03-26
Abstract: 1472823 Releasable fastenings BENGT PETERS NEW PRODUCTS INVESTMENT AB 26 March 1975 12748/75 Headings E2A and E2B [Also in Division F2]  A fastener for securing a cable or tube to a wall comprises a clip 1, a body portion 2 provided with a groove 3 open on one side, a plug portion comprising parts 4 for insertion in a hole in the wall, and an expanding element 9 having one end connected between and to parts 4 such that it may be pivoted about said end from a position outside the opening between parts 4 to a position where it is located within the opening, and its other end located above groove 3, the arrangement being such that when the element 9 is driven into the opening between parts 4, the parts 4 expand outwardly into engagement with the surface of the hole in the wall. The clip may have a corrugated inner surface The outer surface of parts 4 may be provided with ribs 5 and tapering grooved surfaces 6 may be provided on opposite facing surfaces of the parts. The parts may be connected by bar 7. Element 9 may be provided with a tapering furrowed portion corresponding to surfaces 6 and a pin 11 seatable in a recess 2 in the body portion. The element may be attached to bar 7. The fastener may be injection moulded in one piece from plastics material.
Patent GB-1085653-A (GB)
Title: Improvements in or relating to surface testing apparatus
Inventor: REASON RICHARD EDMUND
IPC: G01B7/34
Filed: 1963-04-01
Abstract: 1,085,653. Measuring surface roughness electrically. RANK PRECISION INDUSTRIES Ltd., [trading as RANK ORGANISATION RANK TAYLOR HOBSON DIVISION]. March 26, 1964 [April 1, 1963; March 5, 1964], Nos. 12802/63 and 9355/64. Heading G1N. A surface roughness testing apparatus comprises a pointed stylus F1, Figs. 1, 3, and a larger rounded "skid" F2, both mounted on a pick-up arm F which is automatically controlled by a change-over device such that during one traverse of the arm over the test surface, only the stylus contacts the surface, and during the next traverse only the skid contacts the surface, the two signals so obtained being compared to indicate the roughness. A main carrier body B is vertically movable on a column A1, the test surface is mounted on a table A8, and a pick-up member E carrying the pick-up arm F is positioned in a housing D which is driven on a shaft C towards and away from the column alternately, by means of a motor and a series of gears and cams. The cams control also various switching operations. The body E is mounted on ligament springs E1, and depression of a plunger H3 causes the pick-up assembly to move arcuately about an effective centre E2 causing the skid F2 to contact the surface in place of the stylus F1. Changeover of the pick-up arm may alternatively be effected by electromagnetic means Q4, Fig. 7 (not shown). The signals obtained from a variable inductance transducer G, G1 Fig. 2 (not shown) for the two traverses are integrated and stored and then compared upon completion of the two traverses. Alternatively the first signal is stored on a magnetic film recorder, and reproduced during the second traverse and continuously compared with the second signal, the difference between the two signals being used to operate a pen recorder. The magnetic recording is made on the surface of a drum J9, Fig. 4 (not shown) inside the housing B with separate or combined reading and writing heads. A further larger skid N Fig. 2 (not shown) may be fixed to the housing D, and in the lower of its two positions it carries the weight of the housing D which is still driven by the shaft C but no longer rigidly fixed to it.
Patent GB-1077345-A (GB)
Title: Slide projector
IPC: G03B23/06
Filed: 1966-03-23
Abstract: 1,077,345. Slide projectors. VOIGTLANDER A.G. March 23, 1966 [March 26, 1965], No. 12867/66. Heading G2J. A projector 20 comprises a shallow parallelepipedic housing with the optical system to one side therein, and a mounting chamber 24 for round magazines 22 within the housing, such that the height, and substantially the diameter, of the magazine is within the housing, the slides D moving laterally to the slide gate 37. The magazine is supported on a rotatably mounted plate which may be flat, or shaped as at 29 when the housing has a protuberance 30 in which functional components e. g. a transformer 31 may be incorporated. The protuberance 30 may have a slot 33 in which the bearing 32 for the plate 29 may move laterally in order that magazines of different sizes may be used. The lateral movement in the slot 33 may be coupled to the advance mechanism, via a shift lug, for varying the stepping advance.
Patent GB-468807-A (GB)
Title: Rims for vehicle wheels and their manufacture
IPC: B60B21/02
Filed: 1936-05-07
Abstract: 468,807. Vehicle wheels. DUNLOP RUBBER CO., Ltd., and GOODYEAR, E. F. May 7,1936, No. 12871. [Class 144 (ii)] A rim for wire-spoked wheels of cycles and other lightweight vehicles is formed with tubular side-walls 3 and a double-thickness well-base 5, the butt-ends being riveted to a channel-section plate 6 which is seated in recessed end-portions of the inner peripheral wall 2 of the rim. Specification 266,136, [Class 144 (ii)], is referred to.
Patent GB-820470-A (GB)
Title: Colouring cellulose textiles
Inventor: RATTEE IAN DURHAM
IPC: D06P/
Filed: 1956-04-18
Abstract: Cellulosic textiles are dyed or printed by applying an aqueous medium containing up to 3% by weight of an acid-binding agent and a monoazo or polyazo dyestuff containing at least one ionogenic solubilizing group and at least once a primary or secondary amino group carrying as N-substituent a 1 : 3 : 5-triazine radical containing at least one halogen atom attached to a carbon atom of the triazine ring. Specified acid-binding agents are caustic soda, caustic potash, magnesium oxide, sodium and potassium carbonates and bicarbonates, trisodium phosphate and sodium metasilicate.  The aqueous medium may be applied by padding or printing, in which case a heat or steam treatment is preferably subsequently applied.  As applied to fabrics of broad width, such as tufted viscose rayon carpets, the fabrics, after impregnation or printing with the aqueous medium, are preferably maintained at 10-30 DEG  C. for at least 10 minutes before washing.  The dyebath or paste may contain the usual adjuvants such as sodium chloride, sulphate or alginate, cellulose ethers, urea, starch and locust bean gum.  Numerous dyestuffs are specified and numerous examples are given.
Patent GB-672919-A (GB)
Title: High-vacuum unobstructed path fractionating distillation method and apparatus
IPC: B01D3/10
Filed: 1949-05-17
Abstract: <PICT:0672919/III/1> <PICT:0672919/III/2> A high-vacuum unobstructed path fractional distillation apparatus comprises a gas-tight evacuated column 12 having means, e.g. an electric coil 44, for heating its sides, a heated rotatable member at the lower end of the column with an upper vaporizing surface 20, means for feeding distilland on to the surface 20, a rotatable shaft 36 in the upper part of the column carrying a brush, the outer ends of the bristles 34 of which touch the wall of the column, and a condensing surface at or adjacent the upper end of the column.  In the apparatus of Fig. 1, distilland is fed on to the centre of rotatable surface 20, which is heated by electric element 24, by a conduit 26.  Residue is taken off at 30.  The condensing surface is a part of the wall of the column cooled by a coil 48 or air blast.  Condensate collects in gutter 50. The shaft 36 is cooled by fluid forced through conduit 54.  Vapours condensed on the shaft 36 are flung to the walls of the column by the bristles 34 and there revaporized, a portion of the vapours again condensing on the shaft 36.  The alternate condensation and vaporization with cross-current contact with vapours rising from surface 20 causes a tendency for the heavier components to pass downwards and the lighter components upwards.  In Fig. 2 distilland is fed to the centre of the column by line 26.  Feed not vaporized on the walls of the column collects in gutter 64 and is fed by conduit 66 to vaporizing surface 20.  Residue from surface 20 is taken off by gutter 28 and may be recycled to feed line 26 by pump 70.  The condenser 56 is separate from the column.  The shaft 36 carrying the bristles 34 is cooled by air or water forced through conduit 54.
Patent GB-1514811-A (GB)
Title: Road vehicles
IPC: B60P7/08
Filed: 1975-03-27
Abstract: 1514811 Securing vehicle loads AIRFLEX CONTAINERS Ltd and C D D HICKEY 22 March 1976 [27 March 1975] 13112/75 Heading B7L A road vehicle is provided with an air impermeable, flexible cover 18 and suction means 12 for continuously applying suction to the space beneath the cover to collapse it around the load and restrain the load from movement. The cover may comprise a plurality of oversheets which are attached to the vehicle base. The oversheets are thrown over a load to overlap each other and are fastened together. An undersheet may extend from beneath the load and be wrapped around at least part of the load.
Patent GB-644524-A (GB)
Title: Improvements in and relating to the power transmission systems of multi-rotor helicopters
IPC: B64C27/12
Filed: 1948-05-13
Abstract: 644,524. Multi-rotor helicopters. CIERVA AUTOGIRO CO., Ltd., PULLIN, C. G., and WATSON, K. May 13, 1948, No. 13137. [Class 4] In a multi-rotor helicopter with two or more groups of horizontally spaced lifting rotors, the latter are so arranged that in normal operation their resultant lift vector passes through or close to the centre of gravity of the machine, and each group of rotors is driven by a separate engine independently of the other groups, so that in the event of failure of any engine the others continue to drive the remaining rotors which are disposed in a symmetrical manner with respect to the centre of gravity. In the arrangement shown, the helicopter is provided with four lifting rotors 1, 2, 3, 4 arranged in diamond formation in plan, the forward and rearward rotors 1, 2 being driven by an engine 8 through gearing 11 and a central fore-and-aft shaft 10, while the intermediate side-by-side rotors 3, 4 are driven by a separate engine 9 through gearing 13 and a transverse shaft 12. One-way clutches 14, 15 are provided for the respective engines, or such a clutch may be provided in each rotor hub assembly, to enable the rotors coupled to the engine which fails to auto-rotate and thus generate a symmetrical lift, for which purpose each rotor is provided with conventional cyclic and collective pitch control mechanism.
Patent GB-131517-A (GB)
IPC: A47D7/02
Abstract: 131,517. Myer, L. H. Nov. 11, 1918. Dropside cots.-The dropside E of a cot is guided in its up or down movement by pins H, G screwed into the dropside and engaging slots A in the pillars B. The upper pins G carry buttons J controlled by springs K and adapted to engage bushed recesses C at the upper ends of the slots A to retain the side in the raised position. The recess M in the button which encloses the spring K is large enough to pass over the head L of the pin.
Patent GB-131695-A (GB)
IPC: E05F11/00
Abstract: 131,695. Schofield, J. Feb. 14, 1919. Sliding bolts.-In window fastenings for sliding sashes in which a sliding bolt g on the lower sash engages with apertures in a perforated strip a on the upper sash, the perforated strip a is provided with an ear or lug c by which it is secured to one side of the top sash, while the other end of the strip is screwed to the meeting rail of the top sash. This construction requires the removal of a minimum amount of woodwork to fit the device in position.