baber/WOPTO huggingface dataset:
Patent GB-1010225-A (GB)
Title: Improvements in and relating to the control of rectifiers
IPC: H02M7/17
Filed: 1962-09-21
Abstract: 1,010,225. Rectifying. LICENTIA PATENTVERWALTUNGS G.m.b.H. Sept. 21, 1962 [Sept. 21, 1961], No. 36028/62. Heading H2F. A rectifier control arrangement, of the type having a transformer with its primary winding (e.g. 62) in series with one rectifier 1 and its secondary winding 42 supplying the control electrode of another, 2, has a bias winding 72 arranged to oppose the flux in the transformer due to the primary winding. With this arrangement a stronger firing signal is obtained for a given input, as the effect of the control signal in the primary winding is to reverse the magnetization of the core, not merely to increase it from remanence to saturation in the same sense. Preferably the transformer has a closed core of square loop material, and the primary may be a single wire passed through the core. In a parallel arrangement of rectifiers as shown, all the rectifiers may be turned off by opening switch 10. Rectifiers 2 and 3 will be fired only if the D.C. bias is present, and if this bias is arranged to be applied only when the load current is sufficiently great (Fig. 6, not shown) then only the minimum necessary number of rectifiers will be used. Arrangements for supplying three-phase loads and several singlephase loads are described (Figs. 6 and 7, not shown).
Patent GB-302685-A (GB)
Title: Continuously operating centrifugal sludge separator
IPC: B04B1/18
Filed: 1928-12-06
Abstract: 302,685. Nyrop, A. Dec. 20, 1927, [Convention date]. Density separators; discharging. - In a centrifugal separator the sludge is discharged through a peripheral slot opened and regulated by means operable by fluid pressure. The vertical shaft 1 carries a hub 2 with a cup 3 having an upwardly - flanged edge 4 in which are a number of discharge openings 5. This cup contains another similarly shaped cup 8 adapted to slide tightly against the inner face of the edge 4. Attached to the cup 8 is an inner cup 10, so arranged that a chamber 12 is formed between the cups. A cover 13 is secured to the cups 8, 10 and vanes 19 are arranged between the cover and the cups. The liquid to be treated is supplied from the tank 14 to the chamber 12, and the sludge collects in the angle 23 while the clear liquid passes upwards to the rim 15 and the discharge pipe 16. When sufficient sludge is collected, liquid is passed from the tank 25, through the passages 18, to the chamber 11, thereby causing the cup 8 and cover 13 to rise against the pressure exerted by the springs 21. This operation separates the parts 4, 13 thereby permitting the discharge of the sludge. The liquid in the chamber 11 escapes through the openings 5 and the parts are restored to their initial positions by the springs 21. By regulating the flow of the liquid in the chamber 11 a uniform discharge of sludge can be maintained. The upper part of the edge 4 may consist of thin resilient rings, and the top edge of the cup 8 may be fitted with a thin resilient packing ring. Liquid may be conducted from the separating chamber to the tank 25 to cause the operation of the cup 8 and cover 13 when the separator is filled with sludge.
Patent GB-1524993-A (GB)
Title: Baffle arm operating mechanism
IPC: C03B9/40
Filed: 1975-09-02
Abstract: 1524993 Pneumatic actuator OWENS ILLINOIS Inc 2 Sept 1975 [3 Sept 1974]  36042/75 Heading F1D A pneumatic actuator comprises a piston 12 slidable within a cylinder 13 and having piston-rod sections 10, 22 connected thereto, the piston-rod section 22 having an enlarged head portion 23 which supports a stud 25 which stud rotatably supports two rollers 27 and 28 which rollers engage a slot 19 formed in the wall of a lower cylinder head 18. The piston-rod section 10 extends through an upper cylinder head 14 upon which head is mounted a control valve and porting member 16. A spool valve Fig. 3 (not shown), located in member 16, enables air under pressure to be applied to either side of the piston 12 the piston is caused to reciprocate. As the piston reciprocates, the piston rod/piston assembly is caused to rotate as a result of the rollers 27, 28 engaging the slot 19. The slot 19 is covered by a plate (20) Fig. 5 (not shown) located on the outer surface of the lower cylinder head 18. A pair of semi cylindrical sleeves may be placed around the rod 22 to reduce the volume of air required for moving the piston. As air is applied to the uppermost side of the piston, air is exhausted from the lowermost side via suitable throttling to control the rate of descent of the piston. The actuator may conveniently be used to operate a baffle of a glass forming machine.
Patent GB-1509945-A (GB)
Title: Pressure sewer system
IPC: E03F1/00
Filed: 1975-09-02
Abstract: 1509945 Pressure sewer system ENVIRONMENT ONE CORP 2 Sept 1975 36142/75 Heading E1C A pressure sewer system suitable for hilly terrain comprises sewage generating sites 1 which are provided with a collection tank 10, a grinder-pump 2, an anti-siphon arrangement 4 a non-return valve 23 and pressure sewer pipes 3, 32, 33, 34, 35 leading to a disposal area 31; the grinder-pump includes a comminutor 14, the pump 15 is a semipositive helical screw pump with a flexible boot capable of delivery against the head of pressure which may build up in the sewer system and with outlet 16 connected via non- return valve 23 and conduit 24 to a further non-return valve 9; the anti-siphon arrangement comprises an open-ended conduit 19 with a flap valve 29 which prevents outward passage of liquids but allows gases to pass either way, in conjunction with the flexible boot the anti-siphon arrangement acts as a pump priming means. Combination cleaning, flushing, air purging stations 5, control valves 6, a pressure regulating valve 8 and an air vent 81 may be provided.
Patent GB-1307446-A (GB)
Title: Copolymers
IPC: C08F210/00
Filed: 1970-07-27
Abstract: 1307446 Ethylene-propylene copolymers E I DU PONT DE NEMOURS & CO 27 July 1970 [30 July 1969] 36216/70 Heading C3P  A process for continuously polymerizing ethylene and propylene in a liquid/vapour phase reaction system in the presence of a diluent and a co-ordination catalyst to produce an elastomer of predetermined composition comprises (a) controlling the reaction mixture temperature by withdrawing a first stream from the vapour phase of the reaction mixture and compressing, cooling and purging it of contaminants before returning it to the reaction mixture at a controlled rate, (b) withdrawing from the liquid phase of the reaction mixture a second stream containing polymer, catalyst residue, unreacted monomers and diluent, (c) inactivating catalyst in, and volatilizing ethylene and propylene and separating polymer from the second stream and recycling the monomers and diluent in a dry state to the reaction mixture, and (d) monitoring the amounts of ethylene and propylene in the second stream following separation of polymer therefrom and regulating the flow of fresh ethylene and propylene to the reaction mixture to maintain their concentrations at a desired level in the liquid phase. Polymerization may be effected in the presence of hydrogen, and preferably ethylene and propylene volatilized from the second stream are continuously dissolved in solvent, remaining after polymer separation and the resulting solution is monitored for ethylene, propylene and hydrogen. The olefins may be copolymerized with a non- conjugated diene, e.g. alkadienes, dicyclopentadiene, alkylene and alkylidene norbornenes, norbornadienes and 1,5-cyolo-octadiene. Suitable solvents are tetrachloroethylene and hexane. Apparatus suitable for carrying out the invention is described and illustrated, and an example describes the copolymerization of ethylene / propylene / 1,4 - hexadiene in tetrachloroethylene in the presence of hydrogen and a catalyst formed from vanadium oxytrichloride and diisobutyl aluminium chloride.
Patent GB-988185-A (GB)
Title: Electronic pulse generating apparatus
IPC: G11B15/18
Filed: 1962-09-25
Abstract: 988,185. Electronic timing circuits. J. HERRNING. Sept. 23, 1963 [Sept. 25, 1962], No. 36339/62. Heading H3P. In a sequential timing system, particularly for testing tape transport mechanisms, a sequence is started by closing switch S which discharges capacitor C1 via the winding 15 of a relay, the contacts 13 of which feed a voltage via a differentiating circuit 14 and an OR circuit 8 to an electronic timer 3 which provides a command pulse on line 6 to drive the tape in the reverse direction for a predetermined period. The output of timer 3 is differentiated at 10 so that the differentiated pulse corresponding to the end of the period from 3 triggers a further timer 4 which inhibits movement of the tape for a further period. The output of timer 4 is differentiated at 12 so that the differentiated pulse corresponding to the inhibit period is passed via the OR circuit 8 and used to retrigger timer 3. If the ganged switches P1 . . . P4 are set to position F a similar system comprising forward and stop timers 1, 2 provides command pulses on line 5 to drive the tape intermittently in the forward direction. A third position of switches P1 . . . P4 shown as F/R is provided so as to provide pulses on lines 5, 6 giving the sequence forwardstop-reverse-stop . . . . An OR circuit 16 is provided to prevent unwanted trigger pulses being derived from circuit 14 whilst any of the timers 1 . . . 4 are operating. An inhibit pulse may be fed in via a switch S1 to prevent operation after a single cycle.
Patent GB-506328-A (GB)
Title: Improvements in or relating to antifriction bearings
IPC: F16C33/14
Filed: 1938-12-13
Abstract: 506,328. Bearing bushes. SOC. DES FONDERIES DE BRONZE DE NANTERRE, and RICARD, A. E. Dec. 13, 1938, No. 36350. Convention date, Dec. 15, 1937. [Class 12 (i)] [Also in Group XXII] A bushing of antifriction bearing metal is reinforced by a metal of high mechanical strength which ,is deposited on the bearing metal by electrolytic means. The bushing may be formed of a number of parts. After the coating process the bushing may be machined. Chromium, nickel and the like, and their alloys may be used as the reinforcing metal. A bush with antifriction material on its inner and outer surfaces is formed by forcing one sleeve within another, the bore of the outer sleeve and the perimeter of the inner sleeve being coated with reinforcing metal.
Patent GB-863789-A (GB)
Title: Improvements in the method of manufacturing filamentary bodies consisting of helically wound wire
IPC: H01K3/02
Filed: 1959-10-27
Abstract: 863,789. Making filaments for incandescent lamps. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 27, 1959 [Oct. 27, 1958], No. 36396/59. Class 39(2). [Also in Group XXII] A method in the making of filamentary bodies, consisting of helically wound wire, for thermionic valves, electric incandescent lamps and the like comprises coiling wire on a mandrel or core wire and passing the product obtained through a heating zone and, during the heating process, twisting the mandrel or core wire in a sense such that the wire coiled thereon is slightly loosened. Wire 5 helically coiled on a core wire or mandrel is unwound from a spool 1 to pass over a guide roller 4 and through furnaces 16, 17 to a take-up spool 19. The spool 1 is rotated about a vertical axis, by a shaft 7 driven at a speed proportional to the speed of the wire through the furnaces, to twist the mandrel and wire coiled thereon in its passage through the furnaces. The' coiled wire may subsequently be bent into M shape.
Patent GB-973724-A (GB)
Title: Improvements relating to bottle and like crates
Inventor: MARCHINI PAUL
IPC: B65D1/24
Filed: 1962-09-26
Abstract: 973,724. Bottle crates. PLASTMANT Ltd. Sept. 25, 1963 [Sept. 26, 1962; Oct. 25, 1962], Nos. 36478/62 and 40351/62. Heading B8P. A bottle crate has hollow side and end walls, 11 and 12, moulded integrally of synthetic resinous material. The hollow walls comprise outer and inner walls, 11a 12a and 11b, 12b, connected by spaced parallel ribs 11c, 12c which define rectangular cavities extending from the base towards the mouth of the crate. A base 10 and hollow partition 13 may be moulded integrally with the walls, the base being provided with drainage holes 17 and removable partitions 16. The open lower ends of the walls and partition 13 are closed by a wear-strip 19. Hand holes 18 are provided in the end walls of the crate. In a modification the cavities 14 extend to the tops of the walls which are then bridged by another wear-strip 19. According to the first Provisional Specification, the side walls are joggled to facilitate stacking and all the walls may be apertured to reduce weight and provide hand holes. According to the second Provisional Specification the base may be moulded separately and fixed to the walls by screws.
Patent GB-409828-A (GB)
Title: Improvements in and relating to devices for delivering materials of a soapy or greasy consistency
IPC: A47K5/12
Filed: 1932-12-23
Abstract: 409,828. Piston apparatus for discharging receptacles. GRAHAM, A. J., 19, The College, Bromley, Kent. Dec. 23, 1932, No. 36537. [Class 102 (ii).] A container for pasty substances comprises a cylinder g sliding on a fixed head f, the contents being discharged through a passage i in the end cover h. The end of the passage is normally closed by the end of a spring-pressed lever q. The pasty substance is enclosed in a cartridge a, one end of which is closed by a piston c, while the other end is closed by a cap which is removed before insertion in the cylinder. The piston c is engaged by a disc l which rests on a resilient washer o and is carried by a rod m sliding in a guide n in the head f. The head is provided with venting holes s and may be carried by a bracket e, or may be operated by a handle.
Patent GB-760770-A (GB)
Title: An improved holder for neckties and the like
IPC: A47G25/74
Filed: 1954-12-17
Abstract: 760,770. Tie racks. MACK, J. L. Dec. 17, 1954 [July 26, 1954], No. 36632/54. Class 52 (5). A tie rack comprises a U-shaped frame pivoted on a bracket &c. to swing between depending and horizontal positions, each arm of the frame having a series of outwardly extending tie-receiving prongs which are inclined upwardly and rearwardly when the frame is horizontal. As shown, the ends 3 of a frame 1 pivotally engage apertures in lugs 5 of a bracket 2 secured to a wall &c. by screws 7. A projection 9 on an arm la engages a recess 9a in a lug 5 to releasably retain the frame in horizontal position. In a modification the arms are of flat strip and are pivoted at 11 to the sides of a stud or collar box 12 one arm being extended to form a lever 15 which opens the hinged lid 13 when the frame is raised to horizontal position.
Patent GB-1132924-A (GB)
Title: Brake pedal positioning device
IPC: B60T7/04
Filed: 1966-08-17
Abstract: 1,132,924. Fluid-pressure brakes. BENDIX CORP. 17 Aug., 1966 [1 Sept., 1965], No. 36892/66. Headings F2E and F2F. A brake pedal 38, 40 controlling a power unit 10 acting on a master cylinder 16 is mounted on a vehicle structure by a pivot pin 42 which carries an eccentric 44 journalled in the pedal lever 38, and an arm 46 secured to the pin is connected by a link 74 to the diaphragm assembly of a fluid-pressure motor 52 which is arranged to move the arm 46 to the dotted line position, to rotate the pin 42 and thus raise the pedal lever 38 to position A, only when both a failure of the fluid-pressure source occurs and the pedal has been depressed by the driver to generate a pressure in the master cylinder 16. This arrangement avoids the driver's foot having to grope for an already raised pedal where power failure occurs in the brakes-off position of the pedal lever. The power unit 10 shown is a vacuumsuspended unit of conventional design to which vacuum is communicated from an inlet manifold 12 via a check valve 98. A pipe 92 communicates the vacuum from the unit 10 to a combined relay and electromagnetic control valve 90 which includes a check valve 104 between the vacuum connection 94 and a pipe 88 leading to vacuum chamber 64 of the motor 52 and also a valve 126 which can be opened by energization of a magnet winding 132 only when vacuum normally maintained in a chamber 114, connected with the connection 94 by a pipe 112, is destroyed as a result of failure of the vacuum source. The circuit for energizing the winding 132 is taken from a stop-light circuit which includes an hydraulically operative switch 32 the motor 30 of which is connected by a pipe 28 with an outlet 20 of the master cylinder 16 adjacent the outlet 18 connected to the brakes. Winding 132 is thus in parallel with stop-light 34 and is energized only when the pedal is depressed, e.g. to position B. When vacuum in the power unit 10 fails, the check valve 104 maintains the vacuum in chamber 64 of motor 52 but the force generated by a diaphragm 118 acted on by the vacuum in chamber 114 is reduced owing to the loss of vacuum so that on the next depression of the brake pedal valve 126 is opened by energization of the winding 132, causing air to enter chamber 64 via a passage 136 in the valve 90. As a result, a spring 82 in motor chamber 64 moves the diaphragm assembly 60, 66, 68 of the motor 52 to rotate the pin 42 and thus raise the pedal.
Patent GB-889166-A (GB)
Title: Improvements relating to the production of thin walled moulds and core for casting metals
IPC: B22C1/16
Filed: 1960-10-27
Abstract: In a method of making shell moulds and cores as disclosed in the parent Specification which is referred to, from sand and a binder material which is set and cured by exposure to a vapour or gas which gives rise to acid conditions in the mix, the curing agent is produced by the decomposition by heat of a substance in the moulding mixture such as ammonium chloride or sulphate, or oxalic acid.  In preferred embodiments the binder comprises formaldehyde, urea, furfuryl alcohol, and water. Hexamethylenetetramine may be added.
Patent GB-1121145-A (GB)
Title: Improvements in and relating to electric sockets
Inventor: WEITZEL STANLEY LIONEL
IPC: H01R13/453
Filed: 1964-09-09
Abstract: 1,121,145. Shuttered sockets. LINOLITE Ltd. 31 Aug., 1965 [9 Sept., 1964], No. 36906/64. Heading H2E. To block the entrances 4 to the "live" and "neutral" contacts 6 in the absence of a plug, a mains socket is provided with a shutter member formed with arms 16 extending across the two holes 4 and with one or, as shown, two legs 12 which can slide through a slot or slots 20 in the body of the socket, against the action of a spring 22, only when the two arms 16 are simultaneously moved inwardly by the two pins of an inserted plug.
Patent GB-326513-A (GB)
Title: Improvements relating to reinforcing structures for blast furnace casings
IPC: C21B7/02
Filed: 1928-12-14
Abstract: 326,513. Stern, P., and Mannesmannr÷hrenwerke. Dec. 14, 1928. Bracings.-A reinforcing bracing for a blast furnace comprises uprights a and horizontally disposed ring frameworks c, which may be adapted for use as working-platforms, by the addition of flooring and hand rails. Each framework consists of circumferential and radial members f, g, respectively, supported by inclined struts h. The uppermost framework may carry the mouth closure, and the cooling-water pipes j may be suspended in clips k from the lower ones. The metal casing d<1> of the shaft is supported from the uprights a by clamps a<2>.
Patent GB-964035-A (GB)
Title: Braking mechanism for use in a reeling system
IPC: F16D49/00
Filed: 1961-10-16
Abstract: 964,035. Winding record tapes. RADIO CORPORATION OF AMERICA. Oct 16, 1961 [Nov. 14, 1960], No. 37083/61. Heading G5R. [Also in Division F2] A brake mechanism for co-operation with a pair of rotatable reeling devices 10, 11 e.g. used particularly for handling magnetic record tapes comprises a pair of brake members 25, 26 and a bar 31 interconnectingthe brake members and arranged for simultaneously expanding one of the brake members and contracting the other brake member for providing differential braking when the brake members are applied in a braking engagement. As shown the brake members 25, 26 comprise strip spring members having linings 34, 35 which are attached to the ends of the bar 31 and to blocks 29, 30 and have angular bends 27, 28 formed therein. De-energization of a rotary solenoid 44 allows the springs 40, 41, whose tension may be adjusted by screws 49 in brackets 48, to apply the brake members 34, 35 to drums 14, 15. The angular bends 27, 28 may be replaced by helical springs.
Patent GB-1237784-A (GB)
Title: Hydraulic apparatus
Inventor: FLORJANCIC PETER
IPC: B29C45/67
Filed: 1968-08-05
Abstract: 1,237,784. Injection moulding. P. FLORJANCIC. 5 Aug., 1968 [3 Aug., 1967; 29 Sept., 1967], No. 37300/68. Heading B5A. An injection mould 10, 11 with an injection head 12 and an article ejector 13 is closed in two stages by an hydraulic drive mechanism including a piston 5 spaced from the walls of a pressure chamber 6 and connected by rods 9 to the movable part 11 of the mould, and a valve piston 30 sealingly slidable in a chamber 7 connected to the chamber 6 by a bore 40. An outflow line 18 from the chamber 7 leads to a supply container and is closed by a valve. When pressure fluid is fed to the chamber 6 via line 17 the main closing stroke of the piston 5 is effected to bring the pistons 5, 30 together, in which position they are sealed together by a sealing ring 35. During this movement the piston 30 is held in position by a pin 32 adjustably located axially by a screw 31. With the pistons sealed together a switch 21 is operated by a pin 20 whereby the valve in line 18 is opened and a final mould closing movement effected. The mould is opened by hydraulic pistons 14. The chamber 6 and piston 5 may be of any desired crosssectional shape. In a modification the seal between the pistons embraces the push-rods 9, in which case the latter extend through the piston 30. The sealing surfaces between the pistons may be frusto-conical or cylindrical, and in the latter case, Fig. 8, the piston 5 may slide within a sleeve portion of the piston 30.
Patent GB-435969-A (GB)
Title: An improved cushion tyre and wheel rim for use in combination therewith
IPC: B60C7/00
Filed: 1935-03-09
Abstract: 435,969. Wheel tyres. SPENCER, C. FERRIS-, 40, Brook Avenue, Edgware, Middlesex. March 9, 1935, No. 37313/34. [Class 144 (ii)] A solid rubber tyre has a base portion vulcanized to a channel-section rim B and connected by a narrow neckportion to the body A of the tyre which is of circular crosssection and normally clear of the rim-flanges. The rim is of hollow section with a central web D.
Patent GB-1138110-A (GB)
Title: Treating polymeric material membranes
IPC: B01J13/20
Filed: 1967-08-15
Abstract: 1,138,110. Treating microcapsules. NATIONAL CASH REGISTER CO. 15 Aug., 1967 [29 Aug., 1966], No. 37376/67. Heading B8C. In order to increase the impermeability of the gelled hydrophilic polymeric material walls of microcapsules to their liquid contents, in which the original waterimmiscible liquid core material of the microcapsules has been replaced during manufacture with an exchange liquid by diffusion of the said exchange liquid through the capsule walls whilst in a swollen state due to absorbed water, the microcapsules are dispersed in a solution comprising 1 to 3 parts by weight of the said exchange liquid, 1 to 2 parts water and 1 to 2 parts of a material selected from mannitol, sorbitol, essentially water-soluble mono- and di-saccharides and urea. The capsules may then be removed from the solution and dried. Suitable exchange liquids are ethanol, acetone, dioxane, formamide, dimethyl formamide and propyl, amyl and butyl alcohols. Suitable capsule wall materials are hydrophilic polymers such as gelatin, gum arabic, agar-agar, carrageenan, poly-(ethylene co-maleic anhydride) and poly-(vinylmethylether co-maleic anhydride).