baber/WOPTO huggingface dataset:
Patent GB-610796-A (GB)
Title: Modified castor oil and compositions containing it
IPC: C10M159/08
Filed: 1946-04-16
Abstract: Castor oil is modified in order to increase its miscibility with mineral lubricating oils and other petroleum hydrocarbon fractions, by destructively distilling it in the presence of a lesser amount, e.g. 10 to 15 per cent by weight of sodium chloride, clay, such as fuller's earth, or bentonite, diatomaceous earth, aluminium hydroxide, anhydrous silica or silica gel until substantially all the oil has undergone distillation, and condensing the distillate vapours.  The castor oil and the modifying agent are kept out of contact with brass or copper during the distillation and the retort is only charged, e.g. up to about 65 per cent of its capacity, with oil and modifying agent before distilling each batch.  The temperature of the mixture of castor oil and modifying agent may first be raised to 400 DEG  F. and the distillation then conducted at temperatures ranging up to about 775 DEG  F. in about six to seven hours.  1 to 20 per cent of the distillate obtained may be blended with mineral lubricating oils with or without sulphur or 20 per cent may be blended with a kerosine.  In an example, an intimate mixture of 880 lbs. of castor oil and 88 lbs. of aluminium hydroxide is distilled over the temperature range of about 400 DEG  to 775 DEG  F. in a 200-gallon still, the quantity of distillate obtained being 96 per cent of the original charge of castor oil.  The distillate is neutralized by washing with an aqueous solution of caustic soda followed by hot water.  Specification 317,391, [Class 91], is referred to.
Patent GB-900928-A (GB)
Title: Assembly unit for articles discharged from a conveyor system
Inventor: GIBSON WILLIAM
IPC: B41D5/00
Filed: 1959-04-07
Abstract: 900,928. Conveyers. DAILY MIRROR NEWSPAPERS Ltd., GIBSON, W., and THOMSON, E. F. April 7, 1960 [April 7, 1959], No. 11742/59. Class 78 (1). An article assembly unit such as that disclosed in Specification 706,569, and comprising a a conveyer table and drive means actuable by a switch responsive to discharge of an article from a conveyer system on to the table to move the latter through a predetermined distance, whereby a succescession of articles may be assembled along the table with regular spacings irrespective of the frequency of discharge, includes a retractable stop member 6 on the discharge end of the conveyer system which is arranged to release the articles to the unit one at a time as required. As shown, the conveyer system includes at its discharge end a downwardly-inclined rollerway consisting of rollers 1 driven through pawls 3 mounted on pawl carriers rotatable about the roller shafts. The arrangement is such that the downward speed of stereo plates 2 being conveyed to the assembly unit is limited by engagement of the pawls 3 with ratchet wheels 4, the pawls disengaging when a plate 2 is stopped by the member 6 or is accelerating away from the stop. The pawl carriers downstream of the stop are driven at a higher speed than those upstream of the stop to ensure that the plates 2 are spaced sufficiently for the stop member 6 to engage a following plate 2 after releasing the leading plate 2. Retraction of stop member 6 is effected in timed relation with the feeding of a plate 2 by a rocking-arm 15 through latching mechanism comprising a two-armed lever 7 and a latching lever 12, the rear end of lever 7 being urged by a spring 9 to a lower position in which stop member 6 is retracted but being raised to engage and lift stop member 6 to operative position to stop a following plate 2 when the leading plate passes over the forward end 10 of lever 7, this movement of lever 7 engaging latching lever 12 with latch element 11 on the end 10. As the rocking-arm 15 returns to receive the leading plate 2 it rotates a pivoted trip 16 which is arranged to be operative only on return movement. When the arm 15 rocks forwardly to deliver the leading plate 2 the trip is returned and engages part 17 of the latching lever to release the lever 7, thereby retracting the stop member 6.
Patent GB-1306207-A (GB)
IPC: H03K17/14
Filed: 1971-04-28
Abstract: 1306207 Proximity detectors SIEMENS AG 28 April 1971 [29 April 1970] 11782/71 Heading G1N [Also in Division H3] In a proximity detector circuit, the oscillations of an oscillator comprising an amplifier and at least two feedback circuits are of a first non- zero amplitude in the absence of an object to be detected and are of a second non-zero amplitude when the object to be detected is in the proximity of one of the elements of an oscillatory circuit in one of the feedback circuits. In Fig.2, a transistor amplifier V has a first feedback circuit including coils L2, L1 the coupling between which is varied by the position of a slotted conductive disc, (not shown), and a capacitor C1 forming an oscillatory circuit with R2 and L1. A second feedback circuit includes resistors R7 and R1 and limiter diodes D1, D2. The second feedback circuit and resistors R4, R9 stabilize the amplitude of the lower amplitude oscillations occuring when a conductive part of the disc is between the coils L1, L2. A threshold circuit S.W. delivers a smoothed output Va when the higher amplitude oscillations are produced due to the presence of a slot between the coils. The coils L1, L2 may be arranged as shown in Fig.3, with cores K1, K2 aligned. Coil L2 has magnetic screening AT. Instead of varying the coupling between two coils, the body to be detected may affect the damping or capacitance of the oscillatory circuit.
Patent GB-527684-A (GB)
Title: Improvements in or relating to the welding of duplex metal members
IPC: B23K9/00
Filed: 1939-04-19
Abstract: 527,684. Uniting by fusion; soldering. AMERICAN BRASS CO. April 19, 1939, No. 11788. Convention date, May 12, 1938. [Class 83 (iv)] In welding the edges of bi-metal sheets consisting of a base metal provided with a bonded coating of a metal of lower melting point, the sheets are located with their edges in opposed relation, and a filler rod of a metal similar to that of the coating is placed adjacent the edges and is melted progressively along the joint by a carbon arc or oxy-acetylene burner so as to weld the edges of the coating together and to bond them to the edges of the base metal without melting the base metal. The base metal may be of steel or iron alloy and the coating metal may be of copper or copper alloy such as a copper-silicon alloy containing 3 per cent. of silicon and 1 per cent. of manganese or zinc, or Muntz metal. The edges of an iron or steel water storage tank such as a kitchen water heater with a lining of non-corrosive metal such as copper or copper alloy may thus be united from the outside of the article. The bi-metal parts 5, 6 are placed with coating downwards and with edges in spaced rotation on a recessed copper backing bar 9 and are held thereon by copper fingers 12 which prevent overheating, and a rectangular filler rod 10 of similar material to the coating metal is placed in the gap between the edges and progressively melted by an arc from a carbon electrode 13. The welded joint 14 is thus formed between the edges of the coating 8 and a brazed joint 15 between the edges of the base metal 7. In a modification the rectangular rod may be placed so as to bridge the joint or a T-shaped rod may be used. The rod may alternatively be of round section.
Patent GB-149419-A (GB)
Title: Improvements in means for securing lenses in goggles and optical instruments
IPC: A61F9/02
Filed: 1919-05-12
Abstract: 149,419. Hanson, C. J. W., and Forster, A. B. May 12, 1919. Goggles; optical instruments.-Relates to means for securing lenses or glasses in goggles and in optical instruments. The lenses are placed under inwardly-projecting protuberances e, and are secured in place by a number of strips f of metal connected together by means of tongues h entering holes i. The strips may be flat or ribbed'or otherwise shaped to provide additional rigidity. Resilient members, such as a member g formed by cutting the strip, may be provided to bear against the protuberances e.
Patent GB-300090-A (GB)
Title: Improvements in nozzles for dishwashers
IPC: A47L15/23
Filed: 1928-04-23
Abstract: 300,090. Voshardt, H. F. April 23, 1928. Dishes and the like, washing.-The dishes supported within a container 1 are washed by liquid sprayed from a device comprising an annular tubular member 5 connected by hollow arms 6 to a hub 9 which receives liquid from a supply pipe 3. The member 5 and arms 6 are provided with discharge nozzles 7, 8, which are set at an angle to produce rotation of the spraying device.
Patent GB-1299925-A (GB)
Title: Pillow
Inventor: TOYOO SAIJIRO
IPC: A47G9/10
Filed: 1970-03-12
Abstract: 1299925 Pillows NISHIKAWA SANGYO CO Ltd 12 March 1970 11969 Heading A4M An air-permeable torridal pillows has an eccentric opening C which defines, along Y-Y, two diametrically opposite portions of different radial width, the portion with the greater radial width also having the greater thickness. The pillows may comprise a cotton gauze casing 2 and a filling 1 of raw cotton or a mixture thereof with other fibrous material.
Patent GB-884974-A (GB)
Title: Block copolymers
IPC: C08F297/02
Filed: 1960-04-05
Abstract: Block copolymers are prepared by polymerizing a first monomer in the presence of an alkyllithium polymerization catalyst in an inert diluent and then introducing a second monomer into the reaction mixture and polymerizing it therein to form a block copolymer, the monomers being vinyl and vinylidene compounds other than aliphatic or cycloaliphatic hydrocarbons.  Monomers specified are butadiene, isoprene, cyanobutadiene, piperylene, styrene, vinyl toluene, butyl acrylate, methyl methacrylate, acrylonitrile and methacrylonitrile. The preferred alkyl-lithium catalyst is n-butyl lithium.  The polymerization of the first monomer may be carried to completion, or unreacted first monomer may be present when the second monomer is added, thereby giving rise to copolymers of mixed block and random configuration.  The examples describe the preparation of: (1) and (2) block copolymers of butadiene and styrene; (3) a mixed block and random configuration copolymer of piperylene and isoprene; (4) a replaced by styrene; and (5) a copolymer as in copolymer as in (3) in which the isoprene is replaced by styrene; and (5) a copolymer as in (3).  The copolymer of Example (5) may be cured, either alone or in admixture with natural rubber, in a conventional vulcanizing recipe.
Patent GB-1273143-A (GB)
Title: Hydrofoil craft
Inventor: BEALE GREVILLE GORDON
IPC: B63B1/24
Filed: 1968-03-12
Abstract: 1,273,143. Hydrofoil craft. BRITISH AIRCRAFT CORP. Ltd. 20 May, 1969 [12 March, 1968], No. 11991/68. Heading B7A. A hydrofoil craft has members 12, 14 carrying hydrofoils 16, 19 and propulsion means 18, and has floats 24; the foils or the floats being raisable and lowerable relatively to the hull 10. In Fig. 1 the floats are carried on links 20, 22 pivotable on the hull and one raised relative to the hull at high speeds, and lowered to support the hull at low speeds. Alternatively the hydrofoils may be on retractable members. The floats may have wheels.
Patent GB-1208730-A (GB)
Title: A method of forming sheet or plate material
Inventor: BUTLER ROGER DAVID
IPC: B21D26/055
Filed: 1966-12-23
Abstract: 1,208,730. Making dies; stamping; working at specified temperatures. PRESSED STEEL FISHER Ltd. 18 Dec., 1967 [23 Dec., 1966], No. 57755/66. Headings B3A, B3Q and B3V. A method of forming a superplastic alloy plate or sheet comprises heating the sheet to within the superplastic temperature range, forming it using at least one die, passing a gas through the die to cool the formed sheet to a temperature at which it is sufficiently rigid not to be permanently deformed during stripping, and increasing the gas pressure to strip the formed workpiece from the die. Apparatus for performing the method may be as described in Specification 1,208,729, and include on the die (19) a steel sealing flange (23) having radial gas-exhaust slots. Alternatively a porous die may be used. Compressed-air may be passed through the ducts during the forming operation to act as a gas cushion on the die-surface. At the end of a forming operation, the pressure of the gas cushion is allowed to fall for the cooling stage, after which it is increased for ejection.
Patent GB-115354-A (GB)
Title: Improvements in Calorimetric Meters.
Filed: 1917-08-23
Abstract: 115,354. Guillemin, A., and Compagnie des Forges d'Audincourt et Dependances. June 30, 1917, [Convention date]. Calorimeters; thermometers. - In apparatus for measuring the amount of heat carried by a delivered fluid, the linear expansion of a body in contact with the fluid is utilized for controlling the entry of the fluid into two chambers, the delivery from one of which is measured by a volumetric meter so designed that its reading can be used to determine the amount of heat carried. In the construction shown, the expansible body is in the form of a tube a through which the heating fluid passes into chambers g<1>, g<2> through openings f<1>, f<2> controlled by plungers h<1> and h<2> provided with openings or slots and adjusted by a pivoted lever working upon a shaft j and maintained by a spring in contact with a pivot k carried by the tube a. The reading of a volumetric meter o<1> through which the fluid from the chamber g' passes gives the number of calories. A meter o<2> may also be used for the chamber g<2>, the two readings being used for obtaining the volume of fluid and the average temperature. The temperature reading at any moment is obtained from a pointer r on a toothed sector q actuated by a toothed sector p on the lever i.
Patent GB-233889-A (GB)
Title: Improved construction of apparatus for playing a game
IPC: A63F7/06
Filed: 1924-05-16
Abstract: 233,889. Weintraud, A. May 16, 1924. Table games.-Apparatus for playing a game simulating cricket comprises a bowling board and a batting board at different heights with a space between and carried by a base, hinged stumps on the batting board, adjustable strips on the bowling board, a sloping alley way at the end and sides of the bowling and batting boards to return the ball to the bowling end, pivoted or hinged discs around the batting board acting as fieldsmen, a net or angled wall outside the alleys to direct the ball into same, in combination with a shoot for delivering the ball on to the bowling board, and a bat. The bowling board 3, arranged preferably to overlap the batting board 4, carries a number of adjustable strips 5. In playing a game, one player directs a ball along the bowling board by means of a shoot 15, Fig. 5, so as to impinge against one of the adjustable strips 5 and thence to proceed along the batting board towards hinged stumps 9. A second player endeavours to strike the ball with a bat, Fig. 8, and if successful in driving the ball off the batting board scores accordingly. If, however, the ball strikes a fielder disc 7 hanging from a cord 6, or pivoted to the board, the batsman is out. The ball is returned to the bowling end by means of sloping alleys 10, 12, 14. The bowling shoot 15 may be pivotally secured to the board 3; or instead of the shoot 15, the board 3 may be grooved and pivoted for manipulation in any direction. A compartment 19 is used for storing the shoot, bat and ball.
Patent GB-1010385-A (GB)
Title: Improvements in or relating to ceramics
IPC: C04B35/08
Filed: 1963-03-27
Abstract: Radiation-resistant ceramics are prepared by mixing a particulate refractory oxide with a silicate glass forming sintering agent having a smaller average particle size than the oxide, pressing and sintering the mixture above the glass forming temperature of the agent to obtain a sintered ceramic containing silicate glass between the particles.  The mixture may be slurried in water with an organic binding agent to form a paste which may be particulated, cold-pressed and sintered.  Proportions of 97-99% oxide and 1-3% glass are specified. Refractory oxides specified are beryllia or alumina, magnesia, zirconia and titania alone or in admixture with beryllia and/or each other. Glass forming agents specified are bentonite, montmorillonite-base colloidal clays or talc which may be mixed with calcium carbonate or silicate.  Organic binding agents specified are methyl or ethyl cellulose, paraffin or micro-crystalline wax.
Patent GB-1105657-A (GB)
Title: Improvements in or relating to methods of producing glass having an increased breaking strength
IPC: C03C21/00
Filed: 1964-03-23
Abstract: A method of producing glass having an increased breaking strength comprises causing the surface layers of the glass, rich in reactive elements or compounds which are chemically in a reduced state, to react with and take up one or more further elements or compounds which are in contact with the glass at a temperature near or below the strain point of the glass to introduce said one or more further elements or compounds into the surface layers of the glass, whereby there are formed in the glass surface layers of compression.  In a preferred embodiment flat glass which is produced by the "float" technique dissolves stannous oxide in its surface layers.  This is achieved by the molten tin bath having an oxygen content of 50 p.p.m., and allowing stannous oxide vapour to contact the upper surface and sides of the ribbon. After removal from the bath of molten tin the ribbon is cooled and then maintained in an atmosphere of oxygen of 10 atmospheres pressure at a temperature of 450 DEG  to 550 DEG  C. to convert the stannous oxide to stannic oxide. If cut glass sheets are used they may be immersed in a bath of molten tin or held in an atmosphere of stannous oxide vapour.  Alternatively other compounds of variable valencies may be used, for example lead, manganese, and vanadium, and the element taken up may be of sulphur or chlorine.  The glass with the stannous compound in the surface may be bent in an inert atmosphere before the further treatment.
Patent GB-1382770-A (GB)
Title: Isoindoline derivatives
IPC: C07D209/44
Filed: 1973-03-14
Abstract: 1382770 Isoindolinone derivatives RHONEPOULENC SA 14 March 1973 [16 March 1972 2 Feb 1973] 12267/73 Heading C2C The invention comprises compounds Of formula and their acid addition salts, wherein Ar is Ph or heteroaryl, and may be substituted by halogen, CN, NO 2 , CF 3  or C 1-4  alkyl or alkoxy; X, Y are each H or C 1-4  alkoxy or XY is -OCH 2 O-; and R 1 , R 2  are each H or C 1-4  alkyl, or NR 1 R 2  forms a heterocyclic ring. These compounds are prepared by reacting together (1) the corresponding 3-glycidyloxyisoindolinone and HNR 1 R 2 , or (2) the corresponding 3-hydroxyisoindolinone and (e.g.) isopropylaminomethyloxiran. Intermediates otherwise prepared are 3- methyl - 6 - phthalimidopyridazine and 4,5- dimethoxy-N-phenylphthalimide. Therapeutic compositions for oral, parenteral or rectal administration comrpise compounds of the above formula, which have antiarrhythmic activity.
Patent GB-528124-A (GB)
Title: Improvements in or relating to metallic diaphragms and diaphragm capsules
IPC: G01L7/00
Filed: 1939-04-25
Abstract: 528,124. Elastic-diaphragm pressure gauges. NEGRETTI, H. N., NEGRETTI, P. E., and IBBOTT, H. W. April 25, 1939, No. 12425. Drawings to Specification. [Class 106 (ii)] Comprises a diaphragm of the type having a central flat portion, a flat edge portion for clamping in position and an intermediate corrugated portion having two or more corrugations in which the inner diameter, the convexity, and the radii of curvature of the corrugations bear particular fractional relations to the outer diameter, which relations are given in the Specification, in order to secure uniform deflection movements with rise and fall of pressure over a considerable range. The inner flat portions may be cut away and a stack of such diaphragms connected in the usual way to form a capsule.
Patent GB-286923-A (GB)
Title: Improvements in coin-freed automatic vending machines
IPC: G07F11/16
Filed: 1927-05-09
Abstract: 286,923. Wistoft, S. May 9, 1927. Delivery of articles stored in piles.-In a coinfreed machine of the kind having a pivoted door carrying a pocket for delivering a packet of goods, a mechanism is provided which, when the door is opened, automatically takes or pushes a packet from a magazine so that it can slide down into the pocket on the door, when this is returned to its closed position. The door k, which s pivoted at v, is inclined backwardly, when closed, and comprises a front wall n and a back wall forming a pocket for a packet e transferred from a magazine d down a slide 22. When the door is pulled open, after the insertion of a coin, by a handle t, flanges on sector-shaped walls y carried by the back wall of the receiver hold back, until the door is closed again, the lowermost packet in the magazine which has been pushed out by a pin 20 on a lever 18 pivoted at 19. The lever 18 is actuated by a pin 17 thereon being engaged by projections 15, 16 on a link 11 pivotally connected to a sector y and to a lever 12, which with a double-armed lever 13 belongs to a releasing mechanism of known type. The lever 13 has a trip 27 which, in the absence of a coin, is engaged by a trip 26 on a lever 25 carrying a roller 23 in contact with acam 28, 29 on the door. A mechanism is provided which prevents the door from being closed until the packet in its receiver is taken out. This comprises a rack 6 carried by a strap 5 'axially rotatable in a lug 3 pivoted to the central portion g of the back wall of the receiver. The panel g is pivoted at r and, when the door is open, is moved by springs s assisted by gravity towards the front wall n. This movement, which is allowed by the packet being taken out, causes an arm 8 on the panel by engagement with a fork 7 cn the strip 5 to rotate the rack 6 about its axis thereby disengaging it from a bevelled tooth 9. When the door is closed, the panel g moves away from the front wall by the action of gravity overcoming the springs s, and the rack 6 is returned to the position where it can again engage the tooth 9.
Patent GB-490151-A (GB)
Title: Improvements relating to folding wings for aeroplanes
IPC: B64C3/56
Filed: 1937-05-01
Abstract: 490,151. Folding wings for aircraft. BAYERISCHE FLUGZEUGWERKE AKT.- GES. May 1, 1937, No. 12467. Convention date, May 8, 1936. [Class 4] Means for folding an aeroplane wing such that, when folded, the wing- chord is substantially vertical include a joint situated centrally of the wing profile and permitting rotation about two angularly-disposed axes and a brace rotatably connected at its ends to the wing and a point fixed relative to the fuselage. In one form, the wing 3 is connected to a centre-section 2 by an angled-pivot 7 journalled as shown on the wings. The wing 3 is further connected to the fuselage 1 by a strut 4. In a modification the pivot 5 is replaced by a balljoint and an obliquely arranged link is balljointed to the wing and centre section. In a further modification, the ball-joint is replaced by aT-shaped pivot, one arm being journalled in a cantilever wing. The pivot may be designed so that during folding the wing rises initially and subsequently moves through a position of stable equilibrium. A catch may be provided to hold the wings when folded and a shock-absorber may control the folding operation. Ailerons may be mounted on the foldable portion. The folding wing may, during folding, be moved away from the fixed portion of the wing.