baber/WOPTO huggingface dataset:
Patent GB-872707-A (GB)
Title: Method for production of foamed elastomer and articles so produced
Inventor: MORRIS HAROLD BERTON
Filed: 1959-10-29
Abstract: An elastomer foam product is made by forming an oil-resistant elastomer foam latex, casting said latex in a mould, vulcanizing the cast elastomer, reducing the moisture content of the casting, wet-baking the casting in a non-oxidizing atmosphere in the presence of not less than 10% moisture, and subesquently drying the wetbaked vulcanized casting.  In the example, a latex consisting of neoprene, phenyl-b -naphthylamine, zinc oxide, sulphur, petrolatum and sodium silicofluoride, is foamed, cast, vulcanized by heating in steam, washed in warm water, centrifuged, wet-baked in steam, and finally dried in hot air.  The amount of acid acceptor (zinc oxide) should be less than that necessary to combine with the acids formed during the heating steps. Similarly, the amount of sulphur is preferably less than that normally used.  Reference is also made to foams based on acrylonitrile-butadiene, polyurethane, and sulphide rubbers. Foaming may be effected by mechanical aeration, chemical blowing agents or expansion of dissolved gases.ALSO:An elastomer foam product is made by forming an oil-resistant elastomer foam latex, casting said latex in a mould, vulcanizing the cast elastomer, reducing the moisture content of the casting, wet-baking the casting in a non-oxidisng atmosphere in the presence of not less than 10% moisture, and subsequently drying the wet-baked vulcanized casting.  In the example, a latex consisting of neoprene, phenyl-b -naphthylamine, zinc oxide, sulphur, petrolatum and sodium silicofluoride, is foamed, cast, vulcanized by heating in steam, washed in warm water, centrifuged, wet-baked in steam, and finally dried in hot air.  The amount of acid acceptor (zinc oxide) should be less than that necessary to combine with the acids formed during the heating steps. Similarly, the amount of sulphur is preferably less than that normally used.  Reference is also made to foams based on acrylonitrile-butadiene, polyurethane, and sulphide rubbers. Foaming may be effected by mechanical aeration, chemical blowing agents or expansion of dissolved gases.
Patent GB-918413-A (GB)
Title: Improvements in dish washing machines
IPC: A47L15/30
Filed: 1959-02-12
Abstract: 918,413. Dish-washing machines. ELECTROLUX A.B. Feb. 12, 1959 [Feb. 21, 1958], No. 36844/62. Divided out of 918,412. Class 138 (1). In a dish-washing machine of the kind in which washing and rinsing liquids are circulated successively to spray tubes by a pump having an inlet in a sump at the bottom of the washing chamber, a permanently open drain outlet 28 is provided, which ensures that the washing water, supplied initially through a pipe 21 to the chamber 15, reaches a level A only when a second drain outlet 24 is closed by a valve 25. The openings 24, 28 communicate with a common drain hose 27. The valve 25 is actuated by a hand lever having a spring-assisted snapaction. The dishes are contained in a dish rack 16 rotated by a motor 23 which also drives the pump 22.
Patent GB-323892-A (GB)
Title: Improvements relating to selecting switches such as used in automatic telephone systems
IPC: H01H67/12
Filed: 1928-12-14
Abstract: 323,892. Siemens Bros. & Co., Ltd., Petithory, E. A., and Forceville, E. A. Dec. 14, 1928. Automatic exchange selectors.-A wiper carrier is moved in one direction by a spring under escapement action and in a rectangular direction the same spring either moves the wipers into the bank or withdraws them from it. In Fig. 1 the carrier 1 slides along two supports 17. It carries mounted on a shaft 3 a drum 8 around which a steel band 10 passes, the band passing along slots in the supports 17 and terminating round the drum 11 to which it is held tightly by rollers 16. The drum 11 surrounds the tightly wound spring 13 which tends to roll the band 10 from the drum. When the apparatus is taken into use pawl 14 is removed from the teeth 12. The digits are received by magnet 22 which withdraws the rack 19 and allow under .the action of spring 13 the band 10 to push the carriage 1 along the supports 17. Two similar racks 19 and 20 half a tooth out of alignment and operated by the rocker 23 ensure that the carriage 1 moves only one step for each energization of magnet 22. The next impulse series is received by magnet 7 which moves the rod 6 at each energization and allows the drum 8 to move one step under the action of escapement 4. The band 10 carrying the wipers moves out under action of the spring 13 at right angles to the carriers 17, the first step off normal allowing a pawl to slide into one of the. notches 29<a> in the stationary bar 29. Transverse slots are cut in the guides 17 to guide the band 10 from its position between the guides 17. When the connection is released, magnet 24 winds the spring 13 by means of the pawl 26. The band 10 is withdrawn from the multiple and on reaching its home position on drum 8 it withdraws the stop from 29<a> and allows the carriage 1 to be drawn to its normal position. In Figs. 10 and 11 the band 10 is wound on to the drum 11 by the action of the controlling spring. The first impulse series energize magnet 22 and the carriage 1 moves along guides 17, racks 19 and 20 interacting as before to ensure a single step motion. The second impulse series is repeated to magnets 7 which by means of pawl 4 step the rack 2 carrying the wipers into the multiple and wind up the spring. The carriage is locked in position as before. When the connection is released magnet 33 removes holding pawl 13 from rack 2 and the spring withdraws the wipers from the multiple. On reaching normal position, rack 2 removes the stop 30 from slot 29 and energizes magnet 24. The racks 12, 19 and 20 are pressed forward by magnet 33, racks 19 and 20 making a holding rack of half their normal pitch for carriage 1 and the carriage is moved back to normal by magnet 24 acting on rack 12.
Patent GB-447145-A (GB)
Title: Improvements relating to guards for presses and other like machines
IPC: F16P3/00
Filed: 1934-12-27
Abstract: 447,145. Machinery guards. UDAL, J. D., 45, Upper Dean Street, Birmingham. Dec. 27, 1934. No. 37051. Addition to 356,453. [Class 80 (iv)] The power-press guard described in the parent Specification is modified by the provision of means for adjusting the position of the shaft h on which the main frame i is pivoted and in securing the second frame m to the same shaft h. The shaft h is carried by one end of arms g secured to a shaft c which is adjustably clamped in brackets b. A spring l normally holds a transverse bar k<1> of the frame i against the arms g. To prevent accidental outward displacement of the frame i relative to the frame m a stop piece w fixed to the shaft h bears against the bar k<1>. The frame m is swung to and fro in front of the tools o, p, by the linkage shown, and if the hand of an operator be in the danger zone during the descent of the ram it is caught between the two frames, which thereupon move together away from the machine.
Patent GB-338389-A (GB)
Title: Method of treating paper pulp
IPC: D21B1/00
Filed: 1929-12-04
Abstract: 338,389. Intercontinental Rubber Co., (Assignees of Carnahan, G. H.). Dec. 4, 1928, [Convention date]. Pulping-engines.-Pulp is hydrated by repeated squeezing and rubbing between resilient surfaces such as rubber in the presence of water. Balls covered with rubber are used for this purpose in a tube mill in place of rigid tumbling elements, the pulp being run in at one end of the mill and the rate of flow regulated in accordance with the desired degree of hydration.
Patent GB-1141800-A (GB)
Title: A variable delivery peristaltic pump
Inventor: HUNT JOHN ANTHONY
IPC: F04B43/08
Filed: 1965-08-31
Abstract: 1,141,800. Reciprocating pumps; tube compressors. NATIONAL RESEARCH DEVELOPMENT CORP. Aug. 17, 1966 [Aug. 31, 1965], No. 37120/65. Headings F1A and F1N. A variable delivery peristaltic pump comprises an elastic tube 1, which is flattened against an anvil 2 in a sequence to provide a pumping action by valve members 7 and 8 and a pumping member 4, member 4 being tapered at 6, and the tube and anvil assembly being movable longitudinally of member 4 by a knob 26 acting through pinions 23 and racks 22, so that different widths of member 4 engage the tube to vary the delivery. Valve members 7 and 8 are shaped to follow the tapered edges of member 4. The pumping and valve members are actuated against springs by cams 12, 13 and 14 driven by a constant speed motor 9, and acting through cam followers 16, 17 and 18, the pumping and valve members being pivoted on a shaft 19. A scale 27 indicates the position of the tube, and hence the delivery.
Patent GB-1509916-A (GB)
Title: Block principally for constructing coastal revetments
IPC: E02B3/14
Filed: 1974-08-23
Abstract: 1509916 Paving blocks DYTAP REVETMENTS (WESTBRICK) Ltd 20 Aug 1975 [23 Aug 1974] 37150/74 Heading E1B An interlocking surfacing block, particularly for sea walls has offset upper 1 and lower 2 parts, each of which parts has a contoured edge which cooperates with contoured edges of corresponding adjacent blocks to prevent relative movement in the plane of the revetment. Preferably the two parts of the block are of identical shape, each part has edges which are symmetrical about a plane midway between the edges and the contours are so arranged that the blocks can be fitted together in staggered rows and held slightly apart. Some blocks have projections on their upper faces which act as wave dissipators. In a revetment the blocks are layed on a bed of filter material which lies on a plastics filter membrane on a bed of regulating material which lies directly on the solid underlying structure.
Patent GB-1079101-A (GB)
Title: Recording spectral photometer
Inventor: VOGEN JOSEF
IPC: G01J3/42
Filed: 1964-09-11
Abstract: 1,079,101. Recording-apparatus. FARBENFABRIKEN BAYER A.G. Sept.11, 1964 [Sept.13, 1963], No.37337/64. Heading G1J. A recording spectral photo-meter for automatic and continuous quantitative analysis of each component of a gaseous or liquid stream passing through a cell 19 has arranged on its recording drum 6 cam rings 4, 5 with cams adjustable in position thereon for sending switching impulses to a control instrument 1 comprising sequence relays so that by repeatedly scanning the stream in a selected region of the spectrum certain bands within the region associated with the components of the stream are separated out and their corresponding values are recorded on separate recorders 11, 12, 13, 14 switched on as required by the instrument 1. For analyzing two streams I, II two rings 4, 5 are provided with associated micro-switches 2, 3 whose rollers 2a 3a run over the cams and operate in alternate cycles controlled by a time relay which also controls valves 15, 16 changing the flow through the cell 19 over from one stream to the other. The control instrument may also be arranged for regulating chemical processes for example to prevent the concentrations of reactants rising above or falling below upper and lower limits respectively.
Patent GB-1365527-A (GB)
Title: Tray
IPC: A01G9/10
Filed: 1971-08-09
Abstract: 1365527 Flower pot stands STEWART PLASTICS Ltd 18 July 1972 [9 Aug 1971] 37380/71 Heading A4H [Also in Division B8] A tray for plant pots, and made of high impact polystyrene, has end walls formed with inwardly extending abutments 3 so that adjacent rows of pots are staggered. This construction also enables adjacent trays to be interlocked end-toend. In a modification each recess 2 between the abutments is semi-hexagonal. In another embodiment Fig. 1 (not shown) the abutments are cut from the thickness of the side walls and the outer surface of all walls of the tray are planar. In a third embodiment Fig. 3 (not shown) apertures are cut in the opposite end walls to enable round plant pots to protrude through the wall and so stagger the rows of pots. The side walls may taper to fit the slope of the walls of the pots and this enables empty trays to be nested. Drainage and/or ventilation holes are provided in the base. The base of the tray may have longitudinal ribs.
Patent GB-1399189-A (GB)
Title: Method and apparatus for excavating settled body of solids
IPC: B65G53/30
Filed: 1973-08-08
Abstract: 1399189 Suction dredgers MARCONA CORP 8 Aug 1973 [24 Aug 1972] 37524/73 Heading E1F Apparatus for removing a settled body of mineral solids comprises a structure 44 having a lower end 58 adapted to extend below the upper surface of the body, and having nozzles 64, 66 which in use direct a stream of liquid substantially horizontally through openings 60, 62 in the structure to form a slurry which is removed by a pump 110. The nozzles are then rotated about vertical axes so that the stream sweeps out an arc to form a cavity into which the overburden of material collapses and is then removed as a slurry. The structure 44, which is a caisson connected to pilings 132, 134 which extend into the body of material, is then sunk further into the material by discharge of liquid from nozzles 158, 160, 162 on the caisson and the pilings, and the process repeated. Alternatively, Figs. 4A, 4B (not shown), the structure is a capsule (184) which is supported, guided and anchored relative to fixed pilings (186), (188) by assemblies (274), (276), and is sunk into the material by discharge from nozzles (308), (310) and raised by winches on a platform (192) supported by the pilings.
Patent GB-1124684-A (GB)
Title: Nickel alloy article with improved properties and method of making same
IPC: H01L21/00
Filed: 1966-08-22
Abstract: A nickel alloy article having at least 20% Ni, e.g. an alloy of 56% Fe, 27% Ni and 17% Co, is coated with a gold film, e.g. by vacuum evaporation, sputtering, gas plating, electrolytic or electroless plating, preferably from a KCN gold electro-plating bath, and then heated to between 600 and 1200 DEG C. for between 1/2 and 2 hours, e.g. in an inert atmosphere of N2 or A, to diffuse the gold into the article surface to provide the article with improved corrosion resistance, strength, conductivity and solderability. Prior to coating, the article may be cleaned with trichlorethylene or benzene, heated in H2 and etched with HCl.  Glass may be directly fused to the surface during the gold diffusion to form a seal in the use of the treated article for components of semi-conductor devices.
Patent GB-1442109-A (GB)
Title: Thin layers of high melting point materials
IPC: C23C16/06
Filed: 1974-08-29
Abstract: 1442109 Coating with W Mo Os or Re SIEMENS AG 29 Aug 1974 [14 Sept 1973] 37883/74 Heading C7F A substrate is coated with W, Mo, Os or Re by evaporating the VI oxide of the metal under high vavuum in the presence of the substrate, which is heated to a temperature such that the metal is deposited thereon, and oxygen produced by decomposition of the oxide is pumped off. For W, the substrate temperature may be # 1500‹C, the source temperature about 1250‹C and the residual pressure 10<SP>-5</SP> mm Hg, whilst for Mo, the figures are # 900‹C, about 750‹C and 10<SP>-5</SP>mm Hg respectively; the substrate may be graphite or alumina, it may be rotated about a vertical, or two inclined, axes for more uniform deposition.
Patent GB-369598-A (GB)
Title: Improvements in or relating to the chassis construction of motor vehicles
IPC: B62D61/08
Filed: 1930-12-16
Abstract: 369,598. Motor vehicle frames ; wheel forks. KARRIER MOTORS, Ltd., CLAYTON, R. F., AVERNS, R. DEAN-, and MEEK, P., Karrier Works, St. Thomas's Road, Huddersfield. Dec. 16, 1930, No. 37893. [Class 79 (iv).] In a frame construction for a motor vehicle, the side members a are downwardly inclined towards their front ends so as to be at about the level of the front wheel axle, such front ends being connected by an arched transverse member c the crown of which carries a mounting for the steering fork. Instead of being inclined, the forward ends of the side members may be downwardly cranked or such effect may be obtained bv attachment or bracket-extensions. Each of the arms of the steering member d straddling the front road wheel or wheels is itself forked and carries the ends of leaf springs j to the centres of which the wheel axle bl is secured.
Patent GB-1359656-A (GB)
Title: Metal cutting operations
IPC: C10M169/00
Filed: 1971-07-30
Abstract: 1359656 Cutting oils BURMAH OIL TRADING Ltd 30 July 1971 [5 Aug 1970] 37895/70 Heading C5F Metals are broached with the aid of a composition comprising a major amount of mineral oil and up to 40 wt. per cent of a polyglycol or ether or ester thereof and/or a fatty acid or ester thereof. Specified polyglycols are polyoxyethylene and polyoxyethylene/polyoxypropylene mono- or di-esterified with C 1 -C 10  carboxylic acids or etherified with C 1 -C 8  mono-, di- or trihydric alcohols. Preferred fatty acids are linoleic, oleic and enicic (C 22 ) acids. The mineral oil may be a solvent-refined naphthenic oil. The composition may contain a phosphorus-contnining additive.
Patent GB-371337-A (GB)
Title: Improvements in or relating to pressers and stretchers for trousers or other fabric garments or articles
IPC: A47G25/72
Filed: 1930-12-16
Abstract: 371,337. Trouser presses and stretchers. CORBY, J. S., 6, Frances Road, Windsor. Dec. 16, 1930, No. 37923. [Class 141.] A presser and stretcher, for trousers or other fabric garments or articles, of the kind comprising two clamping elements hinged together, one of the elements 1 being rigid and the other in sections as at 4, 5 resiliently mounted, is characterized in that the part 4 is mounted on the part 5 by springs 8. The board 5 is preferably hinged to the rigid element 1 by leaf springs 7. The press also preferably comprises an upper clamping board 6 pivotally mounted at 9 and spring-pressed at 10. On the closing movement of the press, the board 6, which may be faced with rubber, grips the trousers &c. and stretches them. Means, such as a projection 13 engaging cranked levers 15, give substantial gripping pressure during closing of the press, which pressure is somewhat released on complete closure of the press. This action is provided by a cranked member 14b, Fig. 2, on a rod 14a connected to the hand-levers 14. During the initial closing operation, the portion 14b bears against a leaf spring 11 so that strong clamping pressure is applied to the board 6. When the press is completely closed, the projection 14b is rotated, relieving the pressure. To permit the functioning of the portion 14b, the long continuous batten for the support of the rod 14a may be dispensed with and two short battens 16b, Fig. 2, may be provided having springs 25, Figs. 6 and 7. The press may have a, fillet la at the lower end of the rigid element 1.
Patent GB-1169644-A (GB)
Title: Improvements in and relating to Methods for Making Fibre Reinforced Webs of a Synthetic Resin
IPC: B29C70/50
Filed: 1967-08-17
Abstract: 1,169,644. Making fibre-resin webs. LANDBOUWWERKTUIGEN - EN MACHINEFABRIEK H. VISSERS N.V. 17 Aug., 1967 [30 Aug., 1966], No. 38025/67. Heading B5A. A fibre-resin web, suitable for use in a hot compression moulding process, is formed by casting a resin layer upon a support foil, applying cut glass fibres to the layer, and finally winding the foil, still carrying the fibres and the resin, into a roll under radial pressure. To use the web the roll is unrolled and the supporting foil removed. In the described embodiment a resin layer 9 is transfer coated on to a foil 4 by a roller 5 and the coated foil passed under a chopper mechanism 10, 11 which applies glass fibres to the layer. The fibres are then pressed against the resin by a vertically reciprocating roller 14, and the covered foil finally wound on to a shaft 16, radial pressure being applied by a counterbalanced roll 19.
Patent GB-1066963-A (GB)
Title: Film packaging arrangement
IPC: G03B21/43
Filed: 1963-09-27
Abstract: 1,066,963. Feeding sheets. EASTMAN KODAK CO. Sept. 27, 1963 [Sept. 28, 1962], No. 38126/63. Heading B6B. [Also in Divisions B5 and B8] X-ray films to be packaged (see Division B8) are fed singly by a suction gripper 50 from a stack 10 to a gravity shoot 61 where they are held by a gate 62. The gate 62 is released by a solenoid 64 under the control of a counter 45 fed with clock pulses so that the films are fed at predetermined intervals. A valve 59, which first admits suction to the gripper 50, then closes, and then vents the gripper to release the sheet, is also controlled from the counter 45 which further controls a motor 54 driving a cam 52 providing the motion for the suction gripper 50. The counter 45 may be re-set at a predetermined count, or by a signal from a photo-electric cell cooperating with an infra-red source to detect the feed of an X-ray film.
Patent GB-887457-A (GB)
Title: Improvements in or relating to clamping devices for securing together elements such as bars or tubes
IPC: F16B7/04
Filed: 1960-11-08
Abstract: 887,457. Clamps. HANSEN, J. W. A. Nov. 8, 1960 [Nov. 11, 1959], No. 38269/60. Class 44.  In a clamping device for rods or bars 4, 5 comprising a closed ring bent to form a yoke 1 having two parallel or approximately parallel limbs 2, 3 to receive the rods or bars with the latter in crosswise relationship with inner surfaces of the limbs bearing against the outwardly facing surfaces of the rods or bars, two clamping blocks 6, 7 are adapted to be located between the rods or bars 4, 5 and are movable towards each other, the clamping blocks having wedg-, ing surfaces 8., 13 adapted to engage the inwardly facing surfaces of the rods or bars, and a clamping screw or bolt 14 passing through the clamping blocks for drawing the latter together to secure the rods or bars between the wedging surfaces and the limbs 2, 3 of the yoke.
Patent GB-1031469-A (GB)
Title: Power control circuits
Inventor: WRIGHT MAURICE JAMES
IPC: H03K17/72
Filed: 1962-10-10
Abstract: 1,031,469. Semi-conductor switching circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 4, 1963 [Oct. 10, 1962], No. 38319/62. Addition to 1,031,456. Heading H3T. A switching circuit for selectively controlling the connection of a D.C. source to a load comprises a switchable rectifier (i.e. a siliconcontrolled rectifier capable of being switchedoff by the application of a suitable reverse potential between its gate and cathode electrodes) connected in series with the load across the D.C. source, a circuit including a capacitor connected between the cathode and gate electrodes of the switchable rectifier and means for charging the capacitor when the rectifier is not conducting in the direction tending to turn the rectifier on and for charging the capacitor when the rectifier is conducting in the direction tending to turn the rectifier off. In Fig. 1, when switchable rectifier 14 is non-conducting, capacitor 18 charges in such a direction that momentary closure of switch 21 will switch the rectifier 14 on. Thereafter, the capacitor charges in the reverse direction so that subsequent momentary closure of the switch turns the rectifier off. In Fig. 2, when switch 28 is moved from the position shown to the alternative position capacitor 18 charges until fourlayer diode 23 breaks down and rectifier 14 is switched on. Thereafter, restoration of the switch to its original position causes the capacitor to charge in the reverse direction until fourlayer diode 24 breaks down and switches rectifier 14 off. In Fig. 3, the switch 28 is replaced by the series combination of a variable resistance device 33, such as a switch, photocell or transistor, and a resistor 17. The lowresistance condition of device 33 switches rectifier 14 on and the high-resistance condition switches the rectifier off. The circuit may be modified, Fig. 4 (not shown), so that the variable resistance device is supplied from a potential divider connected across the rectifier 14 instead of directly from the D.C. source, this serving to prevent the circuit oscillating for intermediate values of resistance of the device 33. In Fig. 5 (not shown), the variable resistance device and resistor in series therewith are interchanged so that in the low-resistance condition the rectifier is switched-off and vice versa. To prevent self-oscillation in this latter arrangement the variable resistance device may be supplied from a potential divider connected across the load.