baber/WOPTO huggingface dataset:
Patent GB-986248-A (GB)
Title: Catalyst system for the copolymerisation of olefins
IPC: B62D5/24
Filed: 1963-07-23
Abstract: A polymerization catalyst comprises the reaction product of vanadium tetrachloride or vanadium oxytrichloride, an organo-aluminium compound and diphenyl carbonate, wherein the mol. ratio of the aluminium compound to the vanadium compound is from 1:1 to 10:1 and the mole ratio of the organo-aluminium compound to diphenyl carbonate is from 5:1 to 6:5. The catalyst is used for copolymerizing, in an inert solvent, a feed stock consisting of ethylene and at least one other alpha-olefin and/or diolefin.  The aluminium compound may be a trialkyl, or a dialkyl monohalide, or an alkyl dihalide.  The solvent may be a hydrocarbon or a halogen-substituted hydrocarbon.  The alpha-olefin may be propylene and the diene butadiene, isoprene, dicyclopentadiene, or 1,5-hexadiene. The catalyst may be prepared in situ, and the copolymer recovered by conventional techniques. Specification 954,133 is referred to.
Patent GB-585906-A (GB)
Title: Improvements in or relating to methods and apparatus for determining the direction or position of reflectors of radiant energy
IPC: G01S13/02
Filed: 1939-11-03
Abstract: 585,906. Directive wireless systems. BLUMLEIN, A. D. Nov. 3, 1939, No. 29285. [Class 40 (v)] Relates to means for indicating the azimuth, attitude and distance of an aeroplane, or other conducting body, by the reflection of a transmitted signal impulse, as described in Specification 581,920, where the difference in the reflected signals received by two pairs of spaced aorials gives the azimuth bearing on one cathode-ray tube, and tho sum of the incoming signals gives the altitude on a second cathode. ray tube, the distance being indicated by the position of the reflected impulse along the scanning line supplied to the cathode-ray indicator. In the same Specification a third cathode-ray tube is used to indicate this distance directly on a calibrated scale.' In such a system, the valve amplifiers are only switched into operation intermittently, and are preferably of the kind provided with a common cathode resistance, as described in Specification 482,740. According to the present invention, a push-pull amplifier for use in systems of the kind referred to is arranged (a) to give a balanced response to each switching impulse, and (b) to be operated at a high rating for the small periods of time during which it is active. As shown, the common cathode-resistance of the push-pull valves 1, 2 and 3, 4 is constituted by two pentode valves 5, 6. These are normally switched off, but are brought into action when a switching impulse is applied to their grids through condensers 7, 8, thus allowing current to pass through the main amplifiers 1-4. In order to balance the output from the amplifiers, high resistances 9, 10, 11, 12 are inserted between the ordinary anode resistances 13, 14, 15, 16 and the H.T. supply, and are shunted by decoupling condensers 17, 18, 19, 20. From the junction points, high resistances 21, 22, 23, 24 provide a negative feed-back to the grid of each valve. This serves automatically to maintain the various anode voltages at the same level. Each of the cathode-resistance valves 5, 6 may be replaced by a pair of valves.
Patent GB-1350346-A (GB)
Title: Acceleration sensor
IPC: C08F2/00
Filed: 1972-06-22
Abstract: 1350346 Inertia switches GENERAL MOTORS CORP 22 June 1972 [30 June 1971 (2)] 29314/72 Heading H1N In an acceleration sensor particularly for operating vehicle occupation restrains systems during a crash, a magnetizable mass 24 Fig. 1, is supported by a resilient rod 22 forming a first electric terminal and is urged by a magnet 52 toward the inner end of a sector shaped recess or aperture 50, crash forces causing the mass 24 to move into contact with radially extending leafspring arms 46 of a second electric terminal plate 38. The arms 46 may extend angularly below the mass 24 (as shown), or above the mass, the plate 38 being mounted between insulating plates 26, 28 formed with co-operating apertures and projections 42, 44 to locate the plate 38 angularly. Semi-cylindrical recesses 54, 56 are formed to locate the magnet 52 between the top and bottom casing members 12, 62 which are held together by a flange 60. In a modification, Fig. 4 (not shown), the resilient rod forms a terminal in an insulating member mounted at the top of a metal casing to which the spring contacts are attached and the mass moves in a sector shaped recess of a plastics disc in which the magnet is held between integral projections. The edge of the recess prevents excess movements of the mass so that the contacts are protected from strain.
Patent GB-293471-A (GB)
Abstract: 293,471. Industrial Dryer Corporation, (Assignees of Harris, G. D.). July 8, 1927, [Convention date]. Air &c., moistening.-In humidifying and conditioning apparatus, a body of water with submerged heating coils 28 is maintained below the conditioning chamber 10 and a thermostatic valve controls the admission of fresh cold water. An additional thermostatic control 34 within the chamber may be associated with controls for allowing current to traverse the heating coils for pre-determined time periods; indicating lamps may be included in the circuits. A float valve may be used to maintain the water level. Specification 293.692 is referred to. Reference has been directed by the Comptroller to Specification 264,538, as open to inspection under Sect. 91 (3) (a) of the Acts.
Patent GB-495596-A (GB)
Title: Improvements in tuning indicators in radio receiving apparatus
IPC: H03J1/04
Filed: 1937-10-27
Abstract: 495,596. Wireless receiving-apparatus. GENERAL ELECTRIC CO., Ltd., and BLOCH, A. Oct. 27, 1937, No. 29392. [Class 40 (v)] A tuning indicator of the kind in which resonance is shown by brightness, position or magnitude of a source of light, e.g. a cathode-ray tube 4, the source is rendered visible, in spite of general illumination by which it is surrounded, by means of a screen 8 between the source and the observer and transmitting only the light frequency band characteristic of the indicator employed. In the embodiment shown, 8 is a green filter of willemite and 2 is a shallow recess which permits the indicator to be observed over a wide angle. Specifications 450,513, [Group XX], and 483,841 are referred to.
Patent GB-401879-A (GB)
Title: Improvements in fuel injection devices for internal combustion engines
IPC: F02M61/08
Filed: 1932-10-24
Abstract: 401,879. Fuel injectors. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Oct. 24, 1932, No. 29635. Convention date, Nov. 14, 1931. [Class 7 (iii).] In a liquid-fuel injector having a valve opened outwardly by fuel pressure, one or more passages for the fuel are formed either in the valve or its guide so that the fuel is sprayed directly into the combustion chamber from the passages. In the construction shown in Fig. 1, fuel supplied by a pipe i passes through a bore k in a valve e to fine spraying-passages m, which are covered by the valve guide c until the fuel pressure opens the valve against the action of a spring g. In the modification shown in Fig. 3, the passages m are formed in the guide c and are controlled by an edge p on the valve e, the fuel being fed through passages z to a constriction n in the valve. Two passages may be used, the one first opened producing a preliminary injection of fuel before the main injection, and the cam swell of the fuel-injection pump being designed to produce a long interval between the two injections.
Patent GB-710143-A (GB)
Title: Improvements in or relating to the manufacture of alkali metal cyanates
IPC: C01C3/20
Filed: 1951-12-18
Abstract: Alkali metal cyanates, substantially free from cyanide, are prepared by reacting cyanuric acid, or its amides, ammelide, ammeline or melamine, or mixtures containing them, or compounds which produce such amides on heating, e.g. cyanamide, or dicyandiamide, or compounds produced by heating such amides, e.g. melam, melem, or melon, with an alkali metal, e.g. sodium, potassium, or mixed sodium-potassium, carbonates at 350-550 DEG C., the reaction being effected throughout in the substantial absence of air but in the presence of an atmosphere of carbon dioxide. With sodium carbonate the reaction temperature is preferably 500-520 DEG C.  The amount of carbonate should be 2/3 rds of the amount theoretically required to convert all the nitrogen present to cyanate.  The reaction is carried out in a mild steel or stainless steel closed reactor at atmospheric or superatmospheric, e.g. 15-100 lbs. 1 sq.in. gauge and the reactor is connected to a receiver maintained at below 60 DEG C. to condense much of the evolved ammonia as ammonium carbonate and most of the water formed, so that the water is continuously removed from the reaction zone.  The product is a friable sintered powder.
Patent GB-1260797-A (GB)
Title: Cammed plug valve
Inventor: HAENKY NORMAN H
IPC: F16K5/04
Filed: 1970-06-18
Abstract: 1,260,797. Valves. FWI Inc. 18 June, 1970, No. 29702/70. Heading F2V. A rotary cylindrical plug valve has a surface 34 opposite an inlet 26 on which the plug cams in the closed position to urge the valve member into sealing engagement with the inlet. The stem of the valve may be provided with one or two stop means (74) (Figs. 1, 2, 7 and 8, not shown) to limit angular movement of the plug. Throughout the angular movement of the plug the outlet 28 is in communication with a drain hole 100 (normally sealed by a plug 102) (Fig. 3, not shown).
Patent GB-1393830-A (GB)
Title: Pocket hand stamp
IPC: B41K1/36
Filed: 1973-06-22
Abstract: 1393830 Hand-stamps; printing surfaces T FUNAHASHI 22 June 1973 [26 June 1972] 29828/73 Headings B6D and B6C A hand-stamp comprises a printing pad 6 supported in a holder 1 and a pair of pivotable box-shaped elements 15 which act as a handle in the position shown but which can act as covers when pivoted about axes 16. Catches 17 hold the elements 15 together when they cover the pad 6. The holder 1 is provided with a cover plate 9 detachable therefrom to replenish the ink in an ink pad 8. The pad 6 comprises an elastic sponge material, for example nitryl butadiene copolymer rubber. The ink pad 8 comprises polyvinyl formal resin or felt.
Patent GB-136154-A (GB)
Title: Improvements in Devices for Containing and Distributing a Powdered Material by Degrees.
Inventor: MAILLARD JOSEPH EUGENE BAPTIST
IPC: A45D33/34
Filed: 1919-12-01
Abstract: 136,154. Maillard, J. E. B. Nov. 30, 1918, [Convention date]. Powder-puffs.-A device for distributing rice powder &c. comprises a piece of permeable fabric 5, Fig. 1, secured by a cover 6 to a support 1 carrying a flexible rim 2 of rubber &c. A piece 3 of felt &c. covers the support, and the powder 4 fills the cavity between the members 3, 5. A handle 7 of ribbon &c. is secured to the cover. The cover is fixed to the support or detachably secured thereto by a screw and nut, press fastener &c. The device may be provided with a hinged lid and the handle may be formed as a spring so as to exert pressure against the walls or lid of a box in which it is placed. In a modification of greater depth, the rim 2 need not be flexible and the support 1 is arranged within the rim and is pressed against the powder by a spring or other elastic member; a strip of impermeable fabric fastened to the support and rim prevents powder from passing between these members.
Patent GB-899906-A (GB)
Title: Improvements in or relating to mobiles
Inventor: GREGORY JOSEPH MARCEL
IPC: G09F19/12
Filed: 1958-09-18
Abstract: 899,906. Displaying models. G.O. EQUIPMENT Ltd. Sept. 14, 1959 [Sept. 18, 1958], No. 29968/58. Class 3(2). A mobile is cut from a flexible blank 1 and comprises a support 2 integral with mobile elements 4, 6, 8 and interconnecting parallel supporting strips 3, 5, 7. The blank may consist of a fibrous cellulose mat laminated to a self supporting film or foil of cellulose acetate, regenerated cellulose, nylon or synthetic resin, the mat in the area of the connecting strips being removed leaving only connecting strips of said plastic material which may be transparent.
Patent GB-622676-A (GB)
Title: Improvements in or relating to the colouration of yarn or fabrics composed wholly orpartly of secondary or acetone-soluble cellulose acetate
Filed: 1946-10-08
Abstract: Cellulose acetate is dyed with a vat dyestuff by converting the dyestuff into the alkaline leuco state by means of a reducing agent and an alkali weaker than caustic alkali, applying it to the cellulose acetate from an aqueous medium which contains a liquid organic swelling agent for the cellulose acetate, and washing and soaping without intermediate drying.  In a modification, the dyestuff is vatted with a reducing agent and caustic soda and all excess of caustic alkali is removed from the alkaline leuco compound, e.g. by adding sodium bicarbonate, before applying it to the cellulose acetate.  The liquid organic swelling agents used are those ketones, alcohols or esters which are liquid at ordinary temperatures and have a swelling action on cellulose acetate. Fabrics made of cellulose acetate and cotton or regenerated cellulose may be dyed in solid shades or in two shades, depending on the ratio of swelling agent to water in the dyebath.  In examples, cellulose acetate is dyed in a bath prepared by (1) vatting Caledon Yellow 3GS with sodium hydrosulphite and ammonia and then adding ethyl alcohol, (2) vatting Caledon Brilliant Red 3BS with sodium hydrosulphite and triethanolamine and then adding ethyl alcohol, (3) vatting Caledon Brilliant Red 3BS with sodium hydrosulphite and ammonia and adding ethyl lactate, (4) vatting Caledon Jade Green 4GP with sodium hydrosulphite and caustic soda, removing excess caustic soda with sodium becarbonate, and then adding ethyl alcohol, (5) vatting Caledon Blue RNS with sodium hydrosulphite and sodium carbonate and then adding ethyl alcohol, (7) vatting Caledon Red Violet 2RNS with sodium hydrosulphite and ammonia and then adding methyl alcohol, (8) vatting Caledon Red Violet 2RNS as in (7) and then adding diacetone alcohol, (9) vatting Caledon Brilliant Red 3BS with sodium hydrosulphite and ammonia and then adding ethyl alcohol; (6) a fabric made up of a viscose warp and acetate weft is dyed in a bath made by vatting Caledon Brilliant Orange 6RS with sodium hydrosulphite and ammonia and then adding ethyl alcohol-this colours the acetate but leaves the viscose undyed; a two-colour effect is obtained by then dyeing the viscose warp with Soledon Jade Green XS and Soledon Yellow GS and developing with sodium nitrite; and (10) acetate fabric is padded with a bath containing Caledon Blue GCP and water and subsequently passed through a bath containing sodium carbonate, sodium hydrosulphite and ethyl alcohol.  Specifications 341,408, 444,953, 555,991 and 583,349 are referred to.
Patent GB-479697-A (GB)
Title: An improved adjustable mounting for electric lamps
IPC: F21V19/02
Filed: 1936-11-04
Abstract: 479,697. Mounting electric lamps in airway and other lanterns. CHANCE BROS. & CO., Ltd., and STACEY, N. A. W. Nov. 4, 1936, No. 29997. [Class 75 (iv)] In an adjustable mounting for an electric lamp, e.g. for mounting an incandescent electric lamp in airway or other lighting or signalling apparatus, a socket d, relatively to which the lamp a or its holder f is adjustable in the direction of the longitudinal axis of the socket d, is carried by a lever h pivotally mounted on a second lever k which is itself pivoted on a support c, an adjusting screw m interconnects the two levers h, k, and another adjusting screw o interconnects the lever k and the support c, the two levers being arranged to move in planes which are at right-angles to each other. Projections j, n from the centre of the lever k carry the pivot i for the lever h and the screw m. A stand-by lamp b is similarly mounted on the support c, which is oscillatory.
Patent GB-927998-A (GB)
Title: Improvements in flame protection devices for gas burners
IPC: F23N5/10
Filed: 1961-08-21
Abstract: 927,998. Controlling gas burners. G. KROMSCHRODER A.G. Aug. 21, 1961 [Aug. 24, 1960], No. 30057/61. Class 75 (1). A flame protection device for a gas burner comprises an inlet valve 6a biased by a spring 9 to close a gas inlet to a chamber 8, an outlet valve 7a biased by a spring 14 to close a gas outlet from the chamber 8 to a main burner 29, a pilot burner 30 connected to the chamber 8, thermo-electric, bi-metal or pneumatic means actuated by the pilot flame to hold the inlet valve 6a in open position, a mains-energized electromagnet 17 adapted to open the outlet valve 7a, a shaft 15 axially slidable through the outlet valve and adapted to push the inlet valve 6a into open position and a spring returned press button 18 adapted to engage the upper end of the slidable shaft 15 when pushed downwardly. At starting a mains switch 27 is closed to energize the electromagnet 17 and an ignition coil 24. The armature 16 raises the shaft 15 and an abutment 15a on the lower end of the shaft lifts the outlet valve 7a. The press button 18 is now depressed and pushes the armature and the shaft 15 downwardly against the force of the electromagnet 17. The abutment 15a opens the inlet valve 6a and the outlet valve 7a closes under the action of its spring. Gas now flows to the pilot burner 30 and is ignited by the coil 24 and heats a thermocouple 31 which energizes a second electromagnet 12 adapted to hold the inlet valve 6a in open position. The press button 18 is now released and the first electromagnet 17 again opens the outlet valve 7a to supply gas to the main burner 29. The ignition coil 24 is de-energized after thirty seconds by a manually reset thermal cut-out 25. During operation the outlet valve 7a is opened and closed by a thermostat 26 located in a space heated by the main burner but the pilot burner remains alight. The outlet valve 7a may assume large-small positions instead of on-off positions.
Patent GB-792998-A (GB)
Title: Improvements relating to press tools and the manner of manufacture thereof
Inventor: SCOTT PETER ALEXANDER
IPC: C14B5/00
Filed: 1955-10-20
Abstract: 792,998. Press tools. CROSLAND, Ltd., W. March 14, 1956 [Oct. 20, 1955], No. 30062/55. A press tool comprises a die section 10 incorporating a base block 101 having the die outline formed therein as a cut-out 103, a lining 13 of cutting steel being secured to the surface bounding the cut-out by means of screws 14, and a punch section 12 which incorporates the block 121 resulting from the cutting of the die outline, a surround 15 of cutting steel being secured to the punch block 121 by means of screws 17. The lining 13 and surround 15 may each be made in one or more pieces. The die and punch sections are secured to backing plates 18, 20, Fig. 5, which are secured to the bed 211 and ram 212 of a press. The backing plates are provided with aligning pegs 181 and sockets 202. Cut-out blanks are ejected by means of a plate 23 supported by rubber blocks 24, and material is stripped from the punch section 12 by means of rubber strippers 25. The ejector plate 23 may be dispensed with and the backing plate 18 gapped below the cut-out 103 in the die block 101. In a modification, Fig. 10 (not shown), the lining is secured to the die block by means of tapped holes in ferrules secured to the lining being engaged by the shanks of bolts passed through the die block. In another modification, Fig. 11 (not shown), shims are interposed between the die block and its lining and between the punch block and its surround to correct distortion of the lining or surround. In a further modification, Fig. 12 (not shown), the press tool is constructed for simultaneous blanking and piercing. In a still further modification, Fig. 13 (not shown), the lining and surround are secured to the die and punch blocks respectively by means of bolts passing through open-ended slots in the lining and surround.
Patent GB-920792-A (GB)
Title: Improvements in and relating to disc brakes
IPC: F16D65/14
Filed: 1961-08-21
Abstract: 920,792. Disc-brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALRED TEVES MASCHINEN-UND ARMATURENTABRIK K.G.]. Aug. 21, 1961 [Aug. 24, 1960; May 20, 1961], No. 30071/61. Class 103 (1). A spot-type disc brake comprises a brake support 4, 5, annular brake actuating pistons 7 passing through apertures in the brake support, a brake pad 8, or 8<SP>1</SP>, passing through the central bore 10 of each piston, and detachable means in the bore 10 for operatively connecting the piston 7 to the pad 8 or 8<SP>1</SP>. The detachable means may be adjustable axially in each bore 10 by a screw rotatable in a cover closing the bore or by an automatic slack adjuster, or, as shown, may be in the form of circlips 13 or 14 engageable in annular grooves 12. To operate the brake fluid pressure is forced into annular chambers 15. In another embodiment guide sleeves for the pistons are inserted in the apertures in the brake support, the guide sleeves and pistons being in the form of shouldered bushes. The brake support in either embodiment may be fixed or of the floating type.
Patent GB-911127-A (GB)
Title: Method for making cruciform recesses in screw heads
IPC: B21K1/46
Filed: 1959-09-03
Abstract: 911,127. Making screws. GENERAL AMERICAN TRANSPORTATION CORPORATION. Sept. 3, 1959 [Sept. 23, 1958], No. 30076/59. Class 83 (4). A cruciform driving recess 16, Fig. 1, having undercut driving surfaces 34, is formed in a screw 10 by a punch 116, Fig. 3, corresponding in shape to the recess and mounted for axial rotation during its withdrawal therefrom. A steel blank 48 cut from wire stock is clamped in a support 42 and upset by a first heading punch 52. The punch block 50 is then moved laterally to bring the second punch 116 into alignment with the blank. This punch is carried by a holder 64 mounted for rotation in a sleeve 58 and is reciprocated with impact to form the recess 16 and simultaneously finish the head to countersunk shape, Fig. 9 (not shown). During withdrawal the punch is caused to rotate by the undercut driving surface 34 of the recess. Specification 813,571 is referred to.
Patent GB-1318614-A (GB)
Title: Fruit spreads
IPC: A23L21/12
Filed: 1970-06-22
Abstract: 1318614 Fruit spreads UNILEVER Ltd 22 June 1970 [23 June 1969] 30123/70 Heading A2B A fruit spread of improved keepability is prepared by contacting whole or divided fruit with aqueous sugar syrup without cooking the fruit, to effect a preservative action and emulsifying the mixture of sugar syrup and uncooked fruit with edible oil or fat. By "uncooked fruit" is meant fruit which has not been exposed to heat for a time long enough for the individual shape of the fruit pieces to be lost. The sugar syrup may be heated to pasteurise the fruit. The oil may be aerated (e.g. with N 2  or CO 2 ) the emulsion is preferably a water-in-oil emulsion. The fruit may be used in fresh, dried or frozen form. The sugar may be sucrose, dextrose, maltose, fructose, lactose, brown sugar, invert sugar or honey. The fruit may be raisins, dates, figs, prunes, apricots, strawberries, blueberries and cherries. The oil or fat may be margarine, butter, coconut, palm kernel, cotton seed, kapok, rape seed, peanut, olive, sunflower seed, sesame, corn, safflower or soybean oil, milk fat, beef tallow or lard. The fat may be hydrogenated. Other materials which may be present in the food include emulsifiers such as mono- and di-glycerides. lecithin and polyoxythylene sorbitan derivatives; thickeners such as corn, tapioca, potato and rice starch, carboxymethylcellulose, methylcellulose, guar gum, xanthan gum, alginates and pectin; stabilisers such as sorbic, malic, phosphoric, tartaric and ethylene diamine tetraacetic acids and alkali metal salts thereof, esters of p-hydroxybenzoic acid, alkali metal propionates, butylated hydroxyanisole. butylated hydroxytoluene, and propyl gallate: flavours such as vanilla, caramel, maple, cinnamon, mint and fruit flavours; and salt, nuts, spices and colours.