baber/WOPTO huggingface dataset:
Patent GB-1423708-A (GB)
Title: Inorganic fibre-reinforced polyolefin composition
IPC: C08L27/00
Filed: 1973-05-16
Abstract: 1423708 Fibre-reinforced polyolefin compositions MITSUBISHI PETROCHEMICAL CO Ltd 16 May 1973 [17 May 1972] 23394/73 Heading C3P Glass fibre-reinforced polyolefin compositions are prepared by a process which comprises mixing (A) 5 to 70 weight per cent of surface pretreated glass fibres, (B) at least 1 weight per cent of a modified polyolefin which comprises functional groups reactive with the glass fibre and (C) an unmodified polyolefin, more than 50 weight per cent of the (B) particles having a diameter of less than 100 microns and more than 50 weight per cent of the (C) particles having a diameter of more than 200 microns. The glass fibres may be treated with a silane coupling agent. The polyolefin may be derived from ethylene, propylene, butene-1, pentene-1, 3-methylbutene-1, hexene-1, 4-methylpentene- 1 or styrene; and may be modified by random, block or graft copolymerization with a monomer containing carbonyl, amino, epoxy, hydroxyl, nitrile, sulphonyl, sulphinyl, halogen or phosphoric groups. Mixing may be effected by premixing (A) and (B), by precoating (A) with a solution of (B), or by mixing (A) with a powder of (B) of particle size less than 100 microns and a powder of (C) of particle size greater than 200 microns. Examples describe compositions of glass wool pretreated with γ-aminopropyltrimethoxysilane together with polypropylene and (1-4, 9-16 and 22) glycidyl methacrylate modified polypropylene, (17) acrylic acid modified polypropylene and (18) maleic anhydride modified polypropylene; with ethylene/propylene block copolymer and (5-8) glycidyl methacrylate modified polypropylene and (21) acrylic acid modified ethylene/propylene block copolymer; and with polyethylene and (19 and 20) glycidyl methacrylate modified polyethylene.
Patent GB-1085522-A (GB)
Title: Improvements in or relating to wave form sampling and measuring circuit arrangements
Inventor: WOODCOCK ROGER
IPC: H03K17/60
Filed: 1963-06-12
Abstract: 1,085,522. Gating circuits; cathode-ray tube circuits. MARCONI CO. Ltd. April 8, 1964 [June 12, 1963], No. 23403/63. Headings H3T and H4T. A sampling circuit comprises two amplifier devices such as transistors 1, 2, a gate 5 for applying a sample of the input signal to the input electrode of one of the devices, means for taking a push-pull output from the circuit and means for adjusting simultaneously in the same sense the bias on the input electrodes of the devices to a value equal to the potential of a portion of the sample. As shown, the potentiometer 15 may be adjusted such that the rest level of the output is equal to the level of the sample so that no change of output level occurs during the sampling period. If the output is connected to a C.R. oscilloscope the amplitude of the sample may be measured by replacing the input signal by a measurable voltage giving the same deflection. Switch 18 may be opened during the sampling period to produce a ramp across capacitor 17 and this may be adjusted to balance out the slope of the signal sample. Transistors may be used as the switches and as the constant current source 3.
Patent GB-301816-A (GB)
Title: Improvements in ring spinning and twisting frames
IPC: D01H1/241
Filed: 1927-09-06
Abstract: 301,816. Setzer, B. Sept. 6, 1927. Driving-arrangements; spindle-apparatus. - In a ring spinning and twisting frame the spindles 7, Figs. 3 and 5, and ring carriers 50, Fig. 7, are driven respectively by endless belts 21, 46 engaging opposite sides of the wharls and pressed into tangential contact with the spindle wharls 16, or with friction rollers 48 driving the ring carrierrs 50, by means of spring- controlled tension-rollers 33, 49, Figs. 5, 6 and 8, each of which acts in a radial direction towards the axis of a spindle wharl or towards the axis of a friction roller and alternately on one side and the other thereof. The pressure rollers 33 are provided with flanges 34 which overlap the spindle wharls 16. The belt 21 passes round two pulleys 19, 20, Fig. 3, on the driving-shaft 18, over snatch blocks 22, 23, 24, 25, 27 and a tension-roller 30. The driving-pulley for the belt 46 is adapted to rise and fall on its vertical shaft with the ring-rail. Each traveller 53 supports a thin disc 55 which, if the speed is great enough, hugs the upper side of the ring 8. If the speed drops the disc contacts with the rough surface 56, as shown in the slotted position, Fig. 7, to increase the braking on the traveller 53.
Patent GB-941288-A (GB)
Title: Pressure control valves of the centrifugal type
Inventor: PAGE GRAHAM DESBOROUGH
IPC: F16K17/04
Filed: 1959-07-08
Abstract: 941,288. Centrifugal governors AUSTIN MOTOR CO. Ltd. July 5,1961 [July 8, 1959], No. 23423/59. Heading G3B. [Also in Divisions B7 and F2] A centrifugally loaded pressure relief valve 22 housed in a rotatable body 10 which carries centrifugal weights 15 for loading the valve in accordance with the rotational speed of the body (see Division F2), is adapted for use particularly as a by-pass valve for connection at 23, 24 respectively across the pressure and return lines interconnecting the engine driven pump and the hydraulic driving motor of a hydrostatic transmission gear of a motor car or other powered vehicle. The weights act on a spring 11 of variable rate such that its deflection, owing to the centrifugal force, is proportional to the rotational speed, and the weights also act through a plunger 18 upon a second spring 21 which applies a resulting force to the valve 22. The valve member may be a loose ball. In a modification, the housing 10 is extended beyond the lever arms 14 of the weights 15 to house a third spring which bears upon these arms in opposition to the spring 11. The second or third spring, or both these springs, may be either of constant or variable rate. Specification 941, 289 is referred to.
Patent GB-730723-A (GB)
Title: A new or improved heating and ventilating system for motor coaches and like vehicles
Inventor: LUCKETT JAMES
IPC: B60H1/00
Filed: 1952-09-19
Abstract: 730,723. Ventilating vehicles. WEATHER-SHIELDS, Ltd. Oct. 19, 1953 [Sept. 19, 1952; March 30, 1953], Nos. 23536/52 and 8668/53. Class 137. [Also in Group XIII]  In a heating and ventilating system for public service vehicles having water-cooled engines, e.g. motor coaches, at least one hollow duct 10 extends along the vehicle and contains a gilled or finned tube 23 through which hot water from the cooling system circulates, air from outside the vehicle passing at a controlled rate into the front end of the duct, e.g. from a ventilator 21 on the roof and a fan or blower 20, and discharging through outlets 25 along the duct. The air intake is controlled by a damper 22 or by varying the speed of the fan motor. The diameter of the hot water pipe 23 and its fins 24 is equal to the depth of the air duct 10 which is of flat, rectangular section and, as shown, the pipe extends diagonally across the length of the duct, the air outlets 25 being on the opposite side of the pipe to which the air is fed. The outlets 25 increase in number towards the rear of the duct. There may be two air ducts mounted on the underside of the roof, e.g. to form part of the luggage rack, or below the seats. The hot water pipes 23 are then connected in series so that the water flows from the cooling system in one pipe and back through in the other. In warm weather, the hot-water supply is shut off but air is still passed into the vehicle from the duct or ducts. Extractor ventilators are mounted at the rear end of the roof.
Patent GB-725257-A (GB)
Title: Improvements in and relating to rock drilling bits
Inventor: BROWN GEORGE RUSSELL
IPC: E21B10/18
Filed: 1953-08-26
Abstract: 725,257. Boring earth and rock, drill bits. ENGLISH DRILLING EQUIPMENT CO., Ltd. Aug. 26, 1953, No. 23541/53. Class 85. Conduits, for supplying flushing liquid to the cutters of a rock drill, are formed in the body of the drill on the mating of pre-formed grooves in cutter-supporting segmental elements when said elements are assembled and welded together to form the drill body. In the preferred form the bit has three segmental elements, each element being a drop forging comprising a shank 1, a body 2 and a cutter support 3. In the shank is formed a groove 6 leading to grooves 6a, 6b in the body. The groove 6a, ends in a laterally projecting, nozzle-receiving boss, which, when the elements are assembled together for welding, fits in a recess 7 formed about the outer groove 6b of the adjoining element.
Patent GB-971249-A (GB)
Title: Electric signal amplifiers
IPC: H03F7/04
Filed: 1963-06-13
Abstract: 971,249. Parametric amplifiers. GENERAL MOTORS CORPORATION. June 13, 1963 [June 13, 1962], No. 23588/63. Heading H3B. A parametric amplifier which may be an up converter, a down converter, or a straight amplifier, has acceptable gain over a range of signal frequencies by using two pump sources each of a different frequency. Fig. 3 shows in curve 51 the relation between power gain and signal frequency for a single pump frequency and in curve 52 shows the acceptable band-width of signal frequencies when two pump sources are used. An example given for a down converter is signal frequencies between 20 and 21 mc/s., pump frequencies of 50 and 51 mc/s., and a resultant idler frequency of 30 mc/s. for both of the signal frequency limits. The equivalent circuit for a microwave down converter is shown in Fig. 1 in which signal and idler tank circuits 12, 14 are connected in series with a varactor diode 10 and a bias source 24, two pump sources 38, 40 of different frequencies, e.g. klystrons, being connected across the variable capacitance diode. A circulator 34 and inductive coupling 28 links the input and output terminals 30, 32 with the amplifier. Fig. 4 shows the equivalent circuit of an up-converter, the signal and idler tank circuits 54, 56 being coupled to a signal source 64 and a load 66 respectively. By equating the signal and idler frequencies, either arrangement operates as a straight amplifier without frequency change and the idler tank circuit may be omitted.
Patent GB-1182326-A (GB)
Title: Improved Preparation of Spherical Inorganic Oxide Particles
Inventor: VESELY KENNETH DONALD
IPC: C01F7/02
Filed: 1967-05-22
Abstract: 1,182,326. Controlling gel aging. UNIVERSAL OIL PRODUCTS CO. 22 May, 1967 [26 May, 1966], No. 23614/67. Heading B1X. [Also in Division C1] Apparatus used in the preparation of spheroidal inorganic oxide particles comprises a tank 3, where alumina hydrosol and a thermally hydrolysable weak base (as defined in the specification) are mixed; a tower 6, where the mixture is dropped into hot (about 200F) oil and gelled, the mixture of oil and spheroids being supplied to aging tower 9, where the base is hydrolysed, and product spheroids obtained at valve 13. The aging tower 9 has 3 zones. The first, 10 is at 240-500F, the second 11, is at 240-500F, and the third at 120- 220F. Preferably, the oil flows countercurrently to the spheroids in the first zone 10, co-currently in the second zone 11, and countercurrently in the 3rd zone 12. The spheroids are heated in the first zone, passing downwards past conical section into the second zone, where hydrolysis of the base is completed, and so to the third zone 12, and then discharged. CO 2  may collect in space 29, and may be discharged through line 30. In the preferred embodiment, oil is withdrawn from the junction of the second and third zones, in line 33, pumped to heater 35, and then to the junction of the first and second zones. Oil is also introduced into the tower downwardly to zone 10 with the spheroids in line 7 and upwardly to zone 12 in line 15. The flow of particles through tower 9 is regulated by level control valve 36 which actuates discharge valve 13 to allow discharge of the mixture of oil and spheroids into line 26.
Patent GB-189264-A (GB)
Title: Improvements in the manufacture of curbs and tidies for domestic fire-places
IPC: F24B15/00
Filed: 1921-09-06
Abstract: 189,264. Davison, A. L., (trading as Peel & Co., R.). Sept. 6, 1921. No Patent granted (Sealing fee not paid). Fenders; ash-pans.-In fenders and ash-guards or " tidies " of the type in which the front and sides are joined at the corners by acetylene welding, the front and sides are each formed of three sections, divided horizontally, the main upright section being formed from a single piece of sheet metal bent at the corners. The curb shown in Figs. 5 and 7 comprises vertical side and front portions 3, 4 formed from a metal sheet 2 bent at the corners. The top capping 5 and the bottom moulding 9 are each formed in three parts, mitred at the corners and acetylene welded. A lining 13 may be provided, which is secured by corner pieces 14 and has bent-over top portions secured between right - angled brackets 16 and the top flange 7 of the capping 5. Fig. 8 shows an ash-guard or tidy similarly constructed, Fig. 10 showing the parts 5a, 5b of the top capping before assembly.
Patent GB-865436-A (GB)
Title: Improvements relating to television system converters
Inventor: TAYLOR ERIC WILFRED
IPC: H04N7/01
Filed: 1956-08-01
Abstract: 865,436. Television. ELECTRIC & MUSICAL INDUSTRIES Ltd. July 30, 1957 [Aug. 1, 1956], No. 23678/56. Class 40(3) In a television system converter in which images reproduced by one or more display tube(s) according to one system are scanned by respective ones of one or more pick-up tube(s) operating according to another system, the effect of "smearing" of the reproduced images due to the use of display tubes having long persistence phosphors (necessary to reduce the "photosignal" effect in the pick-up tube(s)) is reduced by interposing a moving apertured shutter between the pick-up tube(s) and the display tube(s). As shown in Fig. 1, which is concerned with a system converter of the "chromacoder" type for converting frame sequential colour signals (derived by means of a pick-up tube 1 operating at 150 frames per second) into simultaneous type colour signals (derived by means of pick-up tubes 8, 9, 10 which scan display tubes 3, 4, 5, respectively, on which the signals from tube 1 are displayed, both groups of tubes operating at 50 frames per second), a shutter 6 (shown in detail in Fig. 3), provided with a spiral slot 14 and rotating at 50 revolutions per second is interposed between the display tubes and the pick-up tubes so that only a narrow band, traversed in the direction of frame scan, of the lines on each of the display tubes is effective at the pick-up tubes. By this means the effect of "smearing" (i.e. the "tail" effect on moving objects due to the long persistence phosphors of the display tubes) on the signals derived by the pick-up tubes is reduced or eliminated since such "smearing" is only effective on the pick-up tubes for a short interval during the frame scanning period of each of the latter tubes. To prevent the edges of the slot 14 from producing "photo-signal" effects the shutter 6 is positioned at such distance from the pick-up tube that the image of its edges are partially de-focused.
Patent GB-772433-A (GB)
Title: Gyro compasses
IPC: G01C19/38
Filed: 1955-04-13
Abstract: 772,433. Gyroscopic compasses. SPERRY RAND CORPORATION. April 13, 1955 [May 25, 1954], No. 23702/56. Divided out of 772,432. Drawings to Specification. Class 97(3) In a gyroscopic compass, the means for damping oscillations of the compass about the meridian comprise tilt-responsive means mounted on the sensitive element, jet-producing means carried by the sensitive element and controlled by the tilt-responsive means to produce an unbalanced torque on the sensitive element when it tilts, so as to cause the sensitive element to precess to remove the tilt, and a pendulous member mounted on the sensitive element for so controlling the position of the jet-producing means that the plane of the torque applied thereby is such that the sensitive element is caused to precess in a vertical plane through the North-South line irrespective of tilts of the vertical axis of the compass. Preferably, the pendulous member is pivoted about an axis parallel to the North-South line, the tilt responsive means comprises a second pendulous member on the first pendulous member about a normally horizontal axis perpendicular to the axis of the first pendulum, the jet-producing means comprise oppositely directed ports in second pendulous member, with means for producing a flow of liquid through the ports, and the first pendulous member is provided with baffle means adapted to interrupt the jets differentially on tilt of the sensitive element. The description is the same as for Specification 772,432.
Patent GB-287586-A (GB)
Title: Improvements relating to the distillation of coal and similar carbonaceous substances
IPC: C10B7/14
Filed: 1926-09-25
Abstract: 287,586. Low Temperature Carbonisation, Ltd., and Parker, C. H. Sept. 25, 1926. Charging ani discharging.-Coal or similar carbonaceous material is distilled by being charged into receptacles which are rolled on inclined tracks through an externally heated retort. the receptacles being charged and discharged by devices preventing the escape of the distillates and enabling a continued progression of the receptacles through the retort to be maintained. Sections 1, 2, 3 of the retort a are joined by end pieces e and are provided with rails a<2> down which roll cylinders b changed with coal. The retort is heated by combustible gases admitted by flues f<1>, f<2> and burned with air from side conduits f<4>. Each cylinder has flanges b<1> to maintain it in position on the rails a<2>. The cylinders are charged and discharged by rotary drums or carriers g, i, each having a recess to receive one cylinder at a time and rotated in synchronism to ensure continued and even progression of the receptacles through the retort. The receptacles are charged from a hopper k, Fig. 7, which supplies a measured quantity, each receptacle being held in jaws m<1> secured to a shaft P mounted in a bearing l<1> on a standard l. The upper part of each jaw has a clamp m<2> to engage the cylinder and operated by a cam lover m<4>, the levers of the two jaws being connected by a bar m<5>. The carrier m is adapted for rotation into a vertical position against a stop 1 for charging purposes and may be moved up or down by the standard 1 which forms the plunger of an hydraulic ram, so that the charged cylinders when closed may be fed on to the track h leading to the. retort. Double pawls o<2> feed the cylinders from the track n to the jaws m<1>. The charging devices may be electrically operated and under automatic or manual control. The cylinders on discharge from the retort pass through a cooling chamber p<2> and are delivered by a rotary device p<3> on to an inclined track p where they are emptied by a plunger p' passed through each cylinder, which is then conveyed on an endless belt conveyer to the inclined track n leading to the charging means.
Patent GB-189866-A (GB)
Title: Improvements in the construction of floating vessels
IPC: B63B3/34
Filed: 1921-09-06
Abstract: 189,866. Abell, T. B., and Gebbie, D. B. Sept. 6, 1921. Addition to 175,189. Plates, framing.-The construction described in the parent Specification, in which short pieces of sectional material e are attached to the bottom plating and worked between the transverse frames is employed in the construction of side plating and deck. Where vessels are provided with an inner skin short pieces e are attached also to the inner skin and are connected to the short pieces on the outer skin by struts.
Patent GB-805407-A (GB)
Title: A method of producing a filter paper web
IPC: B31F1/12
Filed: 1956-08-01
Abstract: 805,407. Filter paper for cigarette wads &c. MULLER, P. A. Aug. 1, 1956, No. 23765/56. Class 96. In the manufacture of filter paper, e.g. for making wads for cigarettes, the paper is ribbed &c. and, before being compacted, is perforated &c. so that frayed edges are formed. Pulp from a flow box 6, Fig. 1, flows on to a wire-cloth 1, is subjected to suction at 8 and 9, and couched on to a pick-up felt 11 which takes it to a drying drum 12; the web thus formed is perforated from one or both sides at 15, 16 so that projecting edges as illustrated in Fig. 5 are left; it is ribbed by rolls 17, 18, passed between helically grooved or knurled rolls 19, 20 and dried as by high-frequency electrical heating as it passes between electrodes 22, 23, &c. The rolls 17, 18 may be so formed as to produce paper of irregular thickness as illustrated in Fig. 11. Or the web may be stretched and compacted to the form illustrated in Fig. 18. Longitudinal strips of the web may be provided with different kinds of irregularities and perforations. In a modification, pulp is supplied and compressed between an upper and a lower wire-cloth, and compressed air is supplied opposite to a suction box. Specifications 796,679 and 801,391 are referred to.
Patent GB-501537-A (GB)
Title: Improvements in or relating to preheaters for liquid fuel burner vaporizers of heating and lighting apparatus
IPC: F23C99/00
Filed: 1937-08-31
Abstract: 501,537. Vapour burners. ANDERSEN, A. Aug. 31, 1937, No. 23818. [Class 75 (i)] A preheating device for a liquid-fuel burner vaporizer comprises an atomizer nozzle body formed with an air duct opening laterally into a fuel duct and detachably mounted in a seating in the wall of a chamber connected to the interior of the fuel tank. The ducts in the nozzle body register with apertures in the seating communicating when the device is in use with the fuel and air in the fuel tank. Figs. 1 and 2 show an atomizer nozzle body 7 formed with an air duct 9 and a fuel duct 8 mounted in a sleeve 6 attached to the filling tube 1. The fuel passes from the fuel tank to the duct 8 through a tube 12. The air duct 9 communicates with the air space in the fuel tank through an aperture 13 in the sleeve 6. Apertured cork gaskets 17, 18 may be provided on two sides between the body 7 and sleeve 6 and leaf springs may be provided at the other two sides. The atomized mixture' is discharged through a flame tube 11 attached to the body 7. When not in use the body 7 is displaced in the direction of the arrow 16. Fig. 5 shows another construction in which a cylindrical nozzle body 7 can be rotated in a packing member 26 so as to close the outlet aperture 14. A stop-pin limits the movement of the body 7. The packing member 26 is surrounded by a split sleeve 6 secured to the filling tube by screws 6c. The detachable part of the sleeve 6 may have end parts preventing its axial displacement. In a modification the cylindrical nozzle body is axially displaceable to close the ducts 8, 9 and rotatable to vary the angle at which the atomized mixture is discharged. In another modification the air duct extends axially through a cylindrical nozzle body to a recess at its end communicating with the air space in the fuel reservoir. Fig. 12 shows another construction in which a conical nozzle body 7 is rotatable in sleeve 6 integral with the filling tube 1. A spring washer 41 is interposed between the filling tube and an operating hand wheel 21. In modifications the nozzle body is rotatable relatively to a block formed with fuel and air ducts and mounted externally of the filling tube 1.