baber/WOPTO huggingface dataset:
Patent GB-1220473-A (GB)
Title: Improvements in or relating to maleic anhydride copolymers
Inventor: FIELD NATHAN DAVID
IPC: C08F261/06
Filed: 1968-03-05
Abstract: 1,220,473. Maleic anhydride/vinyl ether copolymers. GAF CORP. 5 March, 1968 [8 March, 1967], No. 10699/68. Heading C3P. A process of copolymerizing maleic anhydride and at least one vinyl ether consisting of the general formula wherein in both formulµ R is a C 1-8  alkyl group, R<SP>1</SP> is a C 1-4  alkyl group and n is 1 to 4, in a liquid hydrocarbon medium, inert to the polymerization, at a solids content of from 25 to 70% by wt., in the presence of a free radical catalyst or of radiation capable of initiating a free radical chain reaction, at a temperature of 40‹ to 120‹ C, to yield a powdery granular copolymer upon evaporation of the liquid medium, the process being conducted in the presence of a homopolymer of the monomer of the above Formula (2) or a copolymer of methyl vinyl ether and monomers of the above Formula (2), in an amount from 0À1% to 5% by wt. based on the weight of the monomers present in the copolymerizing mixture, the homopolymer or copolymer having an average molecular weight of between 10,000 and 250,000. In the examples, maleic anhydride is copolymerized with methyl, isobutyl, methoxyethyl, n-butyl, 2-ethylhexyl, n-octyl or methoxyethoxy vinyl other in benzene using lauroyl peroxide as catalyst and in the presence of polyvinyl methyl ether, polymethoxyethoxyethyl vinyl ether, polymethoxyethyl vinyl ether, polymethoxyethoxyethoxyethyl vinyl ether, polymethoxyethoxyethoxyethoxyethyl vinyl ether or a copolymer of methyl vinyl ether and methoxyethyl vinyl ether.
Patent GB-296397-A (GB)
Title: Arrangement for the automatic regulation of the efficiency of transmission systems, particularly of high frequency transmission systems
IPC: H04B3/10
Filed: 1928-04-11
Abstract: 296,397. Siemens & Halske Akt.-Ges. Aug. 31, 1927, [Convention date]. Fading, preventing ; automatic gain control.- In a method of regulating the overall attenuation of a combined wired and wireless transmission so as to compensate for the effects of fading, by means of an auxiliary control current the control current is applied at several points along the chain of valve amplification. As shown in the Figure, the control frequency introduced by the generator ST at the transmitting end is separated by a filter S at the receiving end and applied to a rectifier G. The rectified voltage is then applied to a potentiometer, from which tappings L1, L2 are taken to regulate the grid-biasing potentials of the detector or the high or low frequency amplifiers in the panels E, V2.
Patent GB-192648-A (GB)
Title: Device for preventing forcing of locks
IPC: E05B17/20
Filed: 1922-04-19
Abstract: 192,648. Thompson, H. A., and Barnes, F. W. April 19, 1922. Door fastenings, protecting from burglars.-A thin flat strip E of metal is driven into and screwed to the door jamb B so as to lie flush with the rabbet. This guard-plate is preferably provided with serrations e by means of which it is more easily driven into the woodwork.
Patent GB-178712-A (GB)
Title: Improvements in convertible chairs and bedsteads
IPC: A47C17/207
Filed: 1921-04-15
Abstract: 178,712. Brandt, F. E. April 15, 1921. Folding bedsteads and berths convertible into seats.-In a convertible chair and bedstead the back B has a socket on each side to receive a bar E pivoted at F to each side of the seat. The back is fixed in different positions by a pin H engaging holes in the bar E and quadrant G. The foot portion J of the bed is hinged at K and supported when open by a leg L. An alternative means of adjusting the back comprises a fixed pawl engaged by a pivoted rack moved by a wire connected to the back. To enable it to be used as a ship's berth, the ends of the frame may be provided with rings for the attachment of cords by which it may be hoisted up and placed upon brackets pivoted to the sides of the cabin.
Patent GB-431287-A (GB)
Title: An improved tyre lever
IPC: B60C25/02
Filed: 1934-04-13
Abstract: 431,287. Tyre levers. HARDWICK, W., Fair Bank, Jeremy Lane, Heckmondwike, KNOWLES, R., 27, Brighton Terrace, Heckmondwike, and COOPER, L., 6, Firthcliffe Lane, Liversedge, both in Yorkshire. April 13, 1934, No. 11128. [Class 144 (i)] A tyre lever is formed with an S. bend, or similar undulations D, H, adjacent the hooked rim - engaging end A, a roller E being mounted in one of the undulations to engage the side-wall of the tyre during assemblage over the rim-flange B. The opposite end of the lever, for use in detaching the tyre, is formed with rim-engaging stops M.
Patent GB-876936-A (GB)
Title: Metallic sheet stock for gaskets
IPC: F16J15/02
Filed: 1958-04-09
Abstract: 876,936. Metal sheeting. VICTOR MANUFACTURING & GASKET CO. April 9, 1958 [April 24, 1957], No. 11170/58. Drawings to Specification. Class 20(2) [Also in Group XXII] A metallic sheet stock for gaskets comprising rows of projections on both sides of the sheet material, said projections being uniformly spaced apart in uniformly spaced apart rows with the projections and rows on the obverse face of the stock located midway between the projections and rows on the reverse face thereof is characterized in that said projections consist of a plurality of pyramidal sockets indented into each face of the stock, the outer face of each projection being rounded and blended into the inner surfaces of the four adjacent sockets which surround each projection, said rows of sockets and sockets in the rows being spaced approximately 0À05 inch apart, whereby said sockets aid in bonding facing materials on to the stock and in retaining them in place. The original sheet of steel, brass or copper is 0À004 inch to 0À012 inch thick and the effective thickness of the sheet is increased to 0À036 inch by the method according to the invention. The piercing of the sheet in opposite directions hardens the metal and enhances its resiliency. Each projection is ruptured to form an irregularly shaped opening adjacent its apex. Specification 876,937 is referred to.
Patent GB-108518-A (GB)
Title: Improvements in connection with Gas Cooking Stoves and Ranges.
Inventor: NEWELL OLIVER
IPC: A47J36/36
Filed: 1916-08-08
Abstract: 108,518. Newell, 0., and O'Byrne, P. Aug. 8, 1916. Supports for articles to be heated.-For supporting a cooking-utensil over a gas-stove and concentrating the heat under it, a ring or band a corrugated across its width is provided so as to surround the burner and enclose a hot chamber beneath the utensil.
Patent GB-451923-A (GB)
Title: Improvements in and relating to tank stabilising installations for ships
IPC: B63B39/03
Filed: 1936-04-18
Abstract: 451,923. Stabilizing ships. SIEMENS APPARATE UND MASCHINEN GES., 4, Askanischer Platz, Berlin. April 18, 1936, No. 11179. Convention date, June 1, 1935. [Class 113 (i)] Activated or non-activated stabilizing-tanks are provided with an automatically adjusting resistance member located in either the air or liquid connecting conduit for adapting the natural oscillation of the bank liquid to the natural oscillation of the ship. As shown in Fig. 3, the member is shown as a flap 10 pivoted at 11. Flow of liquid through the conduit deflects the flap against the resistance of the spring 14. In another form the resistance member takes the form of a spring-controlled disc which in its medium position throttles the conduit. In another modification described in connection with activated tanks, the resistance member may be combined with the non-return valve which is periodically changed over in rhythm with the oscillation of the ship as described in Specification 389,553. In this case, the movement of the valve 7 on its unlocked side is controlled by the springs 43, 44, Fig. 9, which are linked to an arm 42 depending from the pivots 7a of the flap 7.
Patent GB-1077362-A (GB)
Title: Improvements in or relating to low frequency amplifier circuits
Inventor: ATTWOOD BRIAN ERNEST
IPC: H03F1/02
Filed: 1965-03-16
Abstract: 1,077,362. Transistor amplifier circuits. MULLARD Ltd. March 16, 1965, No. 11192/65. Heading H3T. [Also in Division G3] A regulating transistor Tr is controlled to provide a stabilized D.C. output at terminals O1, 02 and to act as an amplifier for low frequency signals, e.g. audio or television sawtooth deflection signals, which are applied to terminals A1-A3 or A3-A4. The regulator circuit (see Division G3) includes an arrangement constituted by capacitor C2, resistor R2 and a four-layer diode Ds producing control pulses for switching transistor Tr at a frequency dependent upon variations in the output voltage. The low frequency signal is applied to the transistor Tr, together with the control pulses, by way of a clipper amplifier T1 and an emitter follower T2, whereby the voltage-dependent control pulses are further modulated in frequency and/or in pulse width in dependence upon variations in the applied low frequency signal. The output from transistor Tr is applied to the output terminals O1, 02 over a filter L1, C1, and to the low frequency load over a filter L2.
Patent GB-769631-A (GB)
Title: Automatic control of standpipe and u-bend aeration
IPC: B01J8/26
Filed: 1955-04-19
Abstract: <PICT:0769631/IV(b)/1> The flowability of an aerated mixture of solids of differing bulk densities and/or particle size such as the catalyst particles and "heat-carrying inert solid particles" in a hydrocarbon reforming process which mixture flows around curves and bends in at least one transfer line, is maintained by injecting additional quantities of an aerating gas into the transfer line whereby the said mixture is maintained in an aerated condition under changing flow conditions in the said transfer line.  In an example in which the catalyst has an average particle size of 50-150 microns and the shot has an average size of 250-800 microns the solids pass from a reactor 1 through standpipe 5 to a regenerator (not shown). The U bend is provided with gas taps "t" which are manifolded with a primary fluidizing gas supply line 11.  Each gas tap is provided with an orifice "o," and the system is controlled by a delta pressure recorder and controller, D PRC, which when there is an abnormal increase in pressure between points P and P1 in standpipe 5 causes the opening of valve V2, thus providing an increased flow of fluidized gas to the taps "t" through lines 12a, 12b and 12c.ALSO:<PICT:0769631/III/1> The flowability of an aerated mixture of solids of differing bulk densities and/or particle size such as the catalyst particles and "heat carrying inert solid particles" in a hydrocarbon reforming process which mixture flows around curves and bends in at least one transfer line, is maintained by injecting additional quantities of an aerating gas into the transfer line whereby the said mixture is maintained in an aerated condition under changing flow conditions in the said transfer line.  In an example in which the catalyst has an average particle size of 50-150 microns and the shot has an average size of 250-800 microns the solids pass from a reactor 1 through standpipe 5 to a regenerator (not shown). The U bend is provided with gas taps "t" which are manifolded with a primary fluidizing gas supply line 11.  Each gas tap is provided with an orifice "o," and the system is controlled by a delta pressure recorder and controller, D  PRC, which when there is an abnormal increase in pressure between points P and P1 in standpipe 5 causes the opening of valve V2 thus providing an increased flow of fluidized gas to the taps "t" through lines 12a, 12b and 12c.
Patent GB-1210197-A (GB)
Title: Improvements in and relating to apparatus for the wet processing of textiles
IPC: D06B5/00
Filed: 1969-03-03
Abstract: 1,210,197. Dyeing textiles. B. THIES, SPEZIALMASCHINENFABRIK. 3 March, 1969 [7 March, 1968], No. 11257/69. Heading D1L. Textile material is dyed in a vat boiler 2 which may be lifted by means of a winch (7, Fig. 2) on release of a coupling 6 from a pump 1 having a liquor by-pass 4. The material carrier may depend from the cover of the boiler. The carrier may be as shown or of alternative form (Figs. 3 and 4).
Patent GB-376821-A (GB)
Title: Improvements in or relating to a system for regulating and controlling the temperature of storage chambers
IPC: G05D23/275
Filed: 1931-04-16
Abstract: 376,821. Refrigerating. SUNDERLAND, L. and SUNDERLAND, E., 1A, Montpelier Crescent, Brighton, Sussex. April 16, 1931, No. 11309. [Class 29.] A storage chamber, e.g. a cellar containing beers, wines and aerated waters, is provided with heating and cooling means which are controlled, and the temperature indicated, at a distant point. The supply of water for cooling the compressors of a refrigerating machine is controlled by a valve 4. The water pressure in the pipe 2, acting on a piston 7, closes a switch 12 to start the motor 3 which drives the refrigerating machine. The motor is thus stopped if the water is cut off or the supply fails. An indicator lamp 14 is provided. In a modification, Fig. 3, the valve spindle is provided with a spring arm 15 moving over a resistance 17 to regulate the current to the motor. A thermostat may be included in the circuit. An electric heater 18 is arranged in the storage chamber, and is controlled by a switch 19 or automatically by a thermostat 21, and provided with an indicator lamp 20. A fan 22 may be arranged in the storage chamber or may be arranged to circulate air through a cooled chamber, and may be controlled by a switch 23 or a thermostat, and provided with an indicating lamp 24. A thermostat 25 is connected to an indicator 27. All the controls and indicators are located on a panel 1 at any desired distant place.
Patent GB-1520617-A (GB)
Title: Tubular section boom
IPC: E02F3/38
Filed: 1977-03-17
Abstract: 1520617 Booms CATERPILLAR TRACTOR CO 17 March 1977 [9 Aug 1976] 11329/77 Heading B8H [Also in Division B3] The boom 16 of an excavator comprises an elbow casting 46 of circular section, and two tapering portions 48, 50 also of circular section. The portions are welded to the elbow and to end fittings 52, 58 having apertured forked ends. The boom includes a pin 64 for attachment to boom manipulator apparatus, and an anchorage 34 for a jack manipulating the jib pivoted to fitting 58. A welded seam 68, 74 on each portion is located neither directly beneath nor directly to one side of the axis of the boom.
Patent GB-663884-A (GB)
Title: Tiltable pontoon
IPC: B63B35/30
Filed: 1949-04-28
Abstract: 663,884. Dumping vessels. CONIJN, N. W., and SMULDERS. H: .J. A. M.. (trading as WERF GUSTO FIRMA A. F. SMULDERS). April 28, 1949 [Dec. 17, 1948], Xo. 11347/49. Class 113 (ii). A dumping vessel arranged to t u r n completely over to discharge its contents, comprises identical top and bottom portions 1, 7 provided with side walls 2 having inner sloping surfaces 3. A tank or tanks 8 is or are disposed unsymmetrically with respect to the longitudinal axis of the vessel and symmetrically about the horizontal plane 9, the bottom of the tank 8 in the unloaded state of the vessel, in either position, being above or flush with the water level. The tank is provided with valves 5, 6 which are opened to admit water to upset the vessel; the tank drains automatically when the unladen vessel rights itself.
Patent GB-709117-A (GB)
Title: Improvements in or relating to dust-excluding covers for universal joints
Inventor: MOLLART KENNETH ARTHUR WILLIAM
IPC: F16J3/04
Filed: 1951-05-15
Abstract: 709,117. Universal joints. MOLLART ENGINEERING CO., Ltd. May 14, 1952 [May 15, 1951], No. 11357/51. Class 80 (2) A cover for a universal joint comprises a tubular sleeve of flexible material having circumferentially extending corrugations 13, 14, 15 and inwardly directed end flanges 25, 26 which prevent creep. The flanges engage the end surfaces 28 of joint members 20, 21 which are embraced snugly by cylindrical portions 11, 12 of the sleeve. Lubricant may be introduced by way of a hole 31 in the cover which is closed by a waisted plug 32. The cover may be made of rubber, an elastomer rubber substitute or plasticized polyvinyl chloride. The cover and/or the plug may be made of transparent material to show the lubricant content. In a further embodiment, Fig. 5 (not shown) the inwardly-directed flanges engage in annular grooves formed in the cylindrical surfaces of the members 20, 21. The joint shown is of the type in which terminal members engage circumferential grooves in an intermediate ball part 22.
Patent GB-215944-A (GB)
Title: An improved crystal holder for use in wireless systems
IPC: H01L29/00
Filed: 1923-04-27
Abstract: 215,944. Simmons, B. R. April 27, 1923. Crystal detectors.-The crystal is held between two relatively slidable fingers one of which is spring pressed towards the other. As shown, the fixed finger u carries a wire rod d on a parallel - sided extension. The sliding finger c is formed with ears c<2> and a bent portion c<3> and is urged towards the other finger by the spring c on the rod d. Two or more spring-controlled fingers may be provided.
Patent GB-516915-A (GB)
Title: Improvements relating to synthetic resin adhesives and objects employing the same
IPC: C08G12/12
Filed: 1938-04-13
Abstract: 516,915. Urea-formaldehyde condensation products ; adhesives. AERO RESEARCH, Ltd., and RAYNER, C. A. A. April 13, 1938, No. 11382. [Class 2 (iii)] A film glue for use in hot-pressing or surface coating, e.g., between laminae of plywood or on wood, is obtained by incorporating into a thin sheet carrier an early stage urea-formaldehyde .condensation product, comprising a suspension of white powder in resin solution, obtained by reacting urea and formaldehyde in aqueous acid solution of pH between 3 and 6, with stirring, at a temperature up to but not exceeding 'about 50‹C. and drying at a temperature not exceeding about 50‹C. Specified carriers are paper, wire mesh or fabric or thin veneers ; for coatings, coloured or patterned carriers may be used. As a modification, the carrier may be soaked in the initial materials and reaction allowed to take place in situ ; alternatively, the mixture of urea and formaldehyde or the reaction product may be incorporated with paper pulp and formed into paper, the temperature being maintained at not more. than 50‹C. Drying is preferably effected at a temperature not exceeding 25‹C. The reaction is effected as near as possible about 50‹C. to render the product sufficiently viscous without addition of thickening agents, but such agents, e.g., potato starch, may be added, particularly for coatings. The reaction product may be stabilized before impregnation of the carrier and a hardening catalyst may be added. In examples : (1) a mixture of urea, aqueous formaldehyde, citric acid and hexamethylene tetramine, having pH about 5, is allowed to react at atmospheric temperature, with stirring, until temperature again falls to atmospheric and is then used for impregnating; (2) and (3) another mixture of the same ingredients, of pH 3.2, is allowed to react in a jacketed vessel cooled to keep temperature from rising above 50‹C. and after reaction is vigorously stirred until the temperature falls to atmospheric and, after standing, is stabilized at pH 5-6 with hexamethylene tetramine with or without an addition of ammonium chloride.
Patent GB-942580-A (GB)
Title: Improvements relating to toy vehicles
Inventor: BAILEY GEOFFREY
IPC: A63H19/20
Filed: 1961-03-29
Abstract: 942,580. Toy vehicles. LINES BROS. Ltd. March 29, 1962 [March 29, 1961], No. 11533/61. Heading A6S. [Also in Division F4] In a toy vehicle provided with a lighting unit (see Division F4) a clear moulding 13 of plastics material may be fitted in the vehicle to simulate the windows and a further moulding 14 to simulate the interior of the vehicle may also be provided.
Patent GB-161987-A (GB)
Title: Process for purifying sugar juices by filtration and decantation
IPC: B01D33/01
Filed: 1921-04-21
Abstract: 161,987. Tiemann, F. April 21, 1920, [Convention date]. Platen presses.-A basket or frame a, filled with filtering-material moves down in a cylinder f containing sugar juice, the juice being thus forced thorugh the filter and collecting above for dis- .charge through an outlet d. Juice is then extracted from the sediment and filter by water forced in through an opening e. The filter is cleansed of sediment by the downward passage of air as the frame a is raised, aided from time to time by water admitted above. The sedi. ment is discharged through the opening e. The frame may be moved by means of a hydraulic cylinder b, as shown, or by a mechancial device such as a worm drive or screwed spindle.
Patent GB-626006-A (GB)
Title: Improvements in or relating to lighting fixtures
IPC: F21V17/00
Filed: 1947-04-30
Abstract: 626,006. Tubular-lamp fittings. BENJAMIN ELECTRIC, Ltd. April 30, 1947, 11564. Convention date, May 3, 1946. [Class 75(iv)] In a lighting fitting a removable baffle lying between two fluorescent lamps supported by a reflector is attached to the reflector by means of a pair of hangers one of which is resiliently urged toward one of its positions. A baffle 12 extending between two fluorescent lamps is removably secured to a channel shaped sheet metal reflector 10 by means of two hangers 13, 14, which comprise rectangular metal sheets provided with projecting tongues 35, 29. The hanger 14 is riveted to the baffle whilst the hanger 13 is slidably mounted between the spaced walls of the baffle by means of rivets 38 which slide in slots 37 in the hanger. The tongues 29, 35 are provided with spaced fingers 31, 36 which enter pairs of holes in depending brackets 43, 42 on the reflector 10 and are held therein by the action of a coil spring 39 (not shown) urging the slidable hanger 13 towards the left. Bolts and nuts having circular grooves for receiving the spaced fingers of the hangers may replace the depending brackets 42, 43. The baffle 12 is substantially the length of the reflector 10 and comprises a pair of spaced side members having concave upper portions which give rigidity to the baffle and form a channel housing the coil spring. The sides of the baffle may be coated with a white vitreous enamel. A housing 11 surmounting the reflector 10 contains various electrical appurtenances.
Patent GB-580212-A (GB)
Title: Improvements in or relating to doors for passenger cars and like vehicles
IPC: B61D19/00
Filed: 1944-06-17
Abstract: 580,212. Vehicle doors. ATCHERLEY, W. C. June 17, 1944, No. 11589. [Class 20 (iii)] [Also in Group XXXII] A sliding door for a vehicle is guided in upper and lower tracks on the body above and below the door by spaced roller r bearings having their axes in or parallel to the plane of me door, each lower bearing being provided with a ball or roller thrust bearing to support the weight of the door. As shown in Fig. 1 either door 10, 11 can be pushed out laterally in guides fixed to the roof 12 and running board 13 and then slidably guided in a longitudinal direction to clear the other door as described in Specification No. 505,672, [Group XXXII]. The door 10, Fig. 5, is provided with brackets 20 each having a pintle 21 carrying a roller bearing 22 slidable in the upper guideway in the cornice 12, a spring 23 mounted on the pintle compresses a washer 24 against the underside of the cornice and prevents rattle. Similar roller bearings are provided at the bottom of the door and each carries a ball thrust bearing 29 bearing on the upper surface of the running board 13. In a modification the ball thrust bearing is pressed down by a spring and the roller bearing on the pintle is barrel shaped to allow for any misalignment or warping of the door. The guideways may be formed by a channel iron into which the .sheet metal of the running board is pressed, drain holes may be formed in the channel iron.