baber/WOPTO huggingface dataset:
Patent GB-636857-A (GB)
Title: Improvements in or relating to adjustable electrical condensers
IPC: H01G5/06
Filed: 1948-05-21
Abstract: 636,857. Variable condensers. SULLIVAN, Ltd., H. W., and GRIFFITHS, W. H. F. May 21, 1948, No. 13826. [Class 37] An adjustable electric condenser of the interleaving plate type has a plurality of fixed values of capacitance which are not changed by small changes of interleaving of the fixed and slotted moving plates of the condenser, which may be shaped as shown in Fig. 4 into sectors 17-21. The ten capacitance value positions are determined by a " click " device 38, 39 and variations in setting due to back-lash do not affect the area of overlap of sectors of moving plates 11 by the fixed plates 10. Edge capacitance variation due to backlash is kept at a constant percentage by graduation of widths of slots in the moving plates. An interpolating condenser may be embodied as shown in Fig. 6, or may comprise a separate set of moving plates coacting with the main fixed plates and mounted on a spindle concentric with the main spindle. The main plates may be semi-circular or of any other suitable shape and liquid or composite dielectrics of air and solid materials may be used.
Patent GB-1519758-A (GB)
Title: Hot-gas engine
IPC: F02D33/00
Filed: 1977-04-01
Abstract: 1519758 Hot gas engines PHILIPS GLOEILAMPENFABRIEKEN NV 1 April 1977 [6 April 1976] 13845/77 Heading F1S [Also in Division F4]  A hot gas engine 1 having a combustion chamber 5 containing working fluid heater 2 is provided with means to maintain constant the mass air/fuel ratio regardless of variations in ambient temperature or pressure. The air supply line 6 to combustion chamber 5 contains a restriction 10 across which is connected a branch pipe having a portion 15a with a resistance 16 and a portion 15b with a variable resistance 18 controlled by means 24 in response to variations in ambient conditions. A device 22 senses the pressure differential across resistance 16 and responsively controls valve 23 in fuel supply line 7. The air/fuel ratio is set by adjusting resistance 16. The latter can be shortcircuited by opening valve 21 in line 19 so as to increase the air/fuel ratio at starting.
Patent GB-265055-A (GB)
Title: Improvements in or relating to the treatment of paper pulp stock
IPC: D21C9/00
Filed: 1926-06-01
Abstract: 265,055. Jackson, L. Mellersh-, (Robinson Fiber Corporation). June 1, 1926. Pulp, preparation of.-Pulps, both chemical and mechanical, are improved, and a product obtained which can be left to stand for long periods and yields a stronger paper, by mixing therewith in the beater sodium peroxide in quantity sufficient to make the pulp alkaline to litmus. The beating is preferably effected at 120‹ to 130‹ F., and takes about ten minutes. With new stock, 0.1 to 0.25 lbs. of sodium peroxide are added to 100 lbs. of pulp, while 1.25 to 2 lbs, are required with pulp from re-claimed waste paper.
Patent GB-667763-A (GB)
Title: Improvements in or relating to impact pulverizers
IPC: B02C19/06
Filed: 1948-05-21
Abstract: 667,763. Impact pulverizers; centrifugal separators. FISHER, A. J. May 21, 1948, No. 13868/48. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 6, 1948]. Classes 23 and 59 A pulverizer for impact grinding comprises a plurality of fluid-jet grinding injectors in substantially planar arrangement in a tank spaced about and substantially focused upon a common point to define a grinding zone therebetween, an outlet in said tank for the escape of ground material, and a further fluid-jet injector in said tank directed to said common point at an angle to the plane of said first-mentioned injectors, said further injector being adapted to feed material to be ground into said grinding zone. Small coal from a hopper 61 is delivered by a screw conveyer 59 into a conical collector 31 of classifier means mounted in the upper part of a casing 10. This material together with over-size particles rejected by the classifier is drawn downwardly by an injector 48, supplied with superheated steam from a pipe 49, and discharged into a grinding zone between four convergent horizontal injectors 14 arranged around the lower part of the casing 10 and supplied with superheated steam from lines 22. Coal dust settling in the bottom of the casing is drawn in through slots 19 of these injectors 14 and discharged in the steam jets therefrom. Pulverized particles from the grinding zone are carried by the gas stream upwardly outside the conical collector 31 and into its interior, between tangential guide vanes 34 spaced around the top of the collector, whence the fines pass out through a pipe 45. The vanes 34 which are of aerofoil section, Fig. 4, are supported by flanges 36a, 36b of a ring 35 secured to the top of the casing 10 and are spaced by washers 41 on bolts 40. A vertically adjustable bowl-shaped baffle may be provided below the outlet pipe 45 and one or more baffle rings 33 between the collector 31 and the casing 10. Specification 631,389 is referred to.
Patent GB-718314-A (GB)
Title: Improvements in reciprocating pumps for lubricant
IPC: F16N13/04
Filed: 1952-06-03
Abstract: 718,314. Reciprocating pumps. BOSCH GES., R. June 3, 1952. [June 19, 1951], No. 13897/52. Class 102 (1). A lubricant pump has a piston 3 which is reciprocated and rotated in its cylinder 2 by means of a. cam disc 4 provided with gear teeth 5 in mesh with a driving worm and movable between a fixed stop 11 and a stop pin 20 which is adjustable for varying the stroke. A groove 17 in the piston alternately connects the pumping space with a suction passage 15 and a delivery passage 16. The stop pin 20 rests on a flat surface 22 of a shaft 21 which may be turned by means of a screw driver slot provided in the outer end thereof or by an adjusting screw 24 engaging the same or second flat surface on the shaft. In other embodiments the pin may be adjusted by a screw disposed coaxially therewith or it may engage a conical end of an adjusting shaft which in this embodiment is moved axially. In a further embodiment the pin engages a shaped cam surface on a rotatable adjusting shaft connected with a, governor device whereby the pump stroke is varied automatically. Alternatively, resilient' means may be provided to give a " step by step " adjustment of the stop pin. The pump piston may deliver oil to several outlets or several pumps may be disposed in a single casing and driven from a common shaft. Their strokes may be adjusted separately or mutually. A speed indicator may be driven from the pump driving shaft.
Patent GB-603445-A (GB)
Title: Improvements relating to closures for containers
IPC: B65D55/04
Filed: 1945-06-04
Abstract: 603,445. Container lids. MAITLAND, J. G. June 4, 1945, No. 13955. [Classes 18 and 66] [Also in Group XXV] A lid 9 for a container 8 has a flange 11 carrying a detent 17 which snaps into a hole 14 in a resilient inturned skirt 13 around the mouth of the container to lock the lid. An outer flange 10 on the lid has a hole 20 opposite a hole 8a in the container enabling an opening tool to be inserted to break-off the detent. The hole 20 may have a seal 21 and a distance-piece 15 may be fitted between the skirt 13 and the container wall. The lid cannot be removed from the container without damaging them or breaking-off the detent. In order that the lid may be re-used, the flange 11 may be replaceable or a separate detent may be mounted on a block which slides into position.
Patent GB-611796-A (GB)
Title: Process for improving the physical characteristics of vinyl resin filaments, threads, yarns and the like
IPC: D06M23/00
Filed: 1946-05-09
Abstract: The solvent and shrinkage resistance of stretched filaments, yarns and fabrics made therefrom of a copolymer of a vinyl halide and acrylonitrile are improved by subjecting the textile materials, while under tension, to a dry heat at a temperature between 120 DEG  and 175 DEG  C. for a period of from 1 minute to 48 hours.  To maintain the materials under tension during the heating operation, a bonding agent, e.g. a water-soluble cellulose ether, a partially hydrolysed polyvinyl acetate, an aqueous suspension of bentonite or a saturated solution of sodium bicarbonate is previously applied to the materials to temporarily bond the stretched yarn or fabric to a rigid surface, e.g. a bobbin, or to bond the threads of a yarn cake into a rigid mass.  The bonding agent is removed, after the heat treatment, by washing.  Numerous examples are given.  Specifications 513,327, 513,354 and 593,292 are referred to.
Patent GB-741185-A (GB)
Title: Improvements in or relating to a delayed action valve mechanism
IPC: F16K31/36
Filed: 1953-05-19
Abstract: 741,185. Valves controlled by auxiliary valves. ROSS OPERATING VALVE CO. May 19, 1953 [July 16, 1952], No. 14007/53. Classes 69 (2) and 135. A main valve is controlled by a pilot valve which is actuated by a fluid-pressure responsive member having a lost-motion connection with the pilot valve, and means for restricting flow in, at least, one direction is inserted in the passageway leading to the pressure-responsive member. In an embodiment, the main valve 10 is controlled by a pilot ball valve 16 which is opened when a spring-loaded piston 24 descends due to fluid pressure applied to the top thereof. The pressure fluid flows in at 34 when a starter valve (not shown) is operated, and, as the fluid has immediate access to the piston past a non-return valve 35, the main valve will be actuated immediately the lost-motion between the spring-loaded tappet 12 and the valve 15 has been taken up. When the starter valve is reversed, the piston is pushed up by its loading spring but the fluid above the piston can exhaust only past an adjustable restriction 44 so that the return movement of the main valve is subject to a delay. In a modification, two adjustable restrictions 44 and two reversely-acting, non-return valves 35 are provided in parallel by-passes in the conduit leading to piston 24 so that there is delay in the movement of the main valve in both directions. Specification 647,124 is referred to.
Patent GB-1129506-A (GB)
Title: Improvements in apparatus for discharging liquids at a constant rate
IPC: G05D7/01
Filed: 1967-03-28
Abstract: 1,129,506. Valves. H. JONES. 28 March, 1967, No. 14019/67. Addition to 1,061,065. Heading F2V. [Also in Division G3] A valve incorporated in a liquid level control apparatus (see Division G2-3), comprises a stationary casing b1 connected at i3 to a stationary feed pipe, and a stationary slotted tube b2 in which is rotatable a further slotted tube f the bore h of which is connected to an outlet pipe arranged radially of tube f and adapted to swing about the axis of the tubes. In operation rotation of tube f in consequence upon movement of the outlet pipe varies the effective width of slots p3, p4.
Patent GB-1333031-A (GB)
Title: Radio direction finding system
IPC: G01S5/00
Filed: 1968-03-22
Abstract: 1333031 Radio direction finding ELECTRONIQUE MARCEL DASSAULT 22 March 1968 [24 March 1967] 14080/68 Heading H4D A radio direction finding system consists of a central station and a number of outstations linked to it by telephone lines. At the central receiver a predetermined frequency spectrum is scanned in steps and a received signal is transmitted in binary form to the outstations which are thereby tuned to that frequency. All outstations simultaneously then take a bearing on the frequency source and all transmit this simultaneously to the central station. Outstation (Fig. 2).-Binary signals representing the frequency received at the central station are decimalized at 55 and used to operate a decade tuner 52, the selected frequency being applied to each of the channels 37 0  ... 37 2 . The channels 37 1  and 37 2  measure the NS (cos α) and EW (sin α) components of the bearing (α) twice, channel cross-over being effected at 40, 41 to compensate for differences of gain between the two channels and the mean of the two signals being used. A reference phase is provided by omnidirectional channel 37 0  in order to determine the signs of sin α and cos α, which are indicated by an output from one or other of two bi-stable circuits 112 1  and 113 1 , or 112 2  and 113 2 , respectively (Fig. 3, not shown). Signals indicating cos α, sin α, and their signs are passed to the outstation encoder 59<SP>1</SP> (Fig. 5, not shown) which calculates the approximate digital value of the bearing angle α, this being transmitted in binary form, by a transmission unit 16. Central station (Fig. 7).-An omnidirectional antenna 60 is provided with automatic frequeney scanning in 1KHz steps, by the electronic stepping switch 67<SP>1</SP> controlled by the sequential search unit 69. The binary memory and search unit 72 is scanned at the frequency scanning rate but can be addressed by a logic unit 74 at two different rates of read-write and read-out. Scanning of search unit 72 is interrupted during the time that the outstations require to measure the bearing. A received frequency is passed to the outstations only when a new frequency appears during the search cycle.
Patent GB-567820-A (GB)
Title: Rotary take-up for sewing machines
IPC: D05B49/04
Filed: 1943-08-28
Abstract: 567,820. Sewing-machines. SINGER MANUFACTURING CO. Aug. 28, 1943, No. 14097. Convention date, Sept. 3, 1942. [Class 112] A rotary thread take-up has thread-severing means when the thread becomes abnormally wound about the take-up mechanism. Means are provided for throwing the severed end of the thread out of the path of rotation of the take-up member. A take-up disc 14, on the machine main shaft 13 has a pair of studs 15, and supplies thread to a needle 12 from a tension device 44. The thread passes about a guide 45, over a thread-controlling member 19 on a rear take-up disc 18, and is guided by deflecting fingers 41, 43 before passing to the studs 15. The studs carry a flat threadconfining ring 16 held axially spaced from the disc 14. A supplementary rear take-up device' is also included. A rotary shaft 17, parallel with the shaft' 13, revolves at twice the speed of the latter and carries the disc 18 which, preferably, lies in the same plane as the disc 14. The member 19 extends axially from the disc 18 and has a slot 20. Should the thread t become wound around the part 19; as shown in Fig. 4, a knife 31, extending axially across a, slot between two rings 21, 22, severs the thread extending over the slot 20. A guard-plate 35 and a face-plate 24 have bent-over flanges. These, together with plates 25, 27, confine the thread. Arms 38, 39 are adjustably mounted on the guard 35 and carry the fingers 41, 43. The slack thread given up by the member 19 is normally supported by the fingers and prevented from engaging the knife 31. The edge of the knife need not be sharp. Severed thread is thrown outwards from the take-up by the finger 41.
Patent GB-551062-A (GB)
Title: Improvements in, or relating to, hoists, cranes, lifts and the like lifting apparatus
IPC: B66D5/12
Filed: 1941-11-03
Abstract: 551,062. Self-sustaining gear. ASEA ELECTRIC Ltd., and BAYNES, S. Nov. 3, 1941, No. 14137. [Class 78 (v)] [Also in Group XXXV] In hoists and like lifting apparatus having mechanism of the type comprising friction surfaces located between a driving shaft and a driven shaft arranged in axial alignment, the brake being automatically applied immediately the power is cut off from the driving shaft, the stationary member of the brake is ccmbined with means for inching the hoist drum to locate the load accurately. The contiguous ends of the shafts each carry a disc 16, 17 which are locked together non-rotatably by pins 18 fixed to one disc 17 and slidable in holes in the other 16. Loose on the pins 18 is mounted a friction disc 20 which is adapted to engage two laterally disposed discs 19, 22 mounted loosely on pins 21 carried by a toothed wheel 23 turnable on the driven shaft. The wheel 23 meshes with a pinion 39 geared to a toothed portion 38 of a shaft 32 co-axial with the shaft 31 of an inching motor 30. The shafts 31, 32 approach one another under the influence of a spring 37 to bring discs 33, 34 on their ends into frictional contact with a stationary disc 36 and thus normally brake the wheel 23 carrying the substantially stationary discs 19, 22. When the hoist drum and the main motor have been stopped, however, the auxiliary motor 30 can be started to turn the wheel 23 slowly and thus, through the bound discs 19, 20, 22 inch the drum to a required position. An orifice is provided in the casing to allow the insertion of a " feeler " to ascertain the clearance between the discs 19, 20, 21. Specification 551,061 is referred to.
Patent GB-945436-A (GB)
Title: A drawing device for spinning and preparatory machines
IPC: D01H5/26
Filed: 1961-04-19
Abstract: 945,436. Drafting-apparatus. G. FUSAROLI. April 19, 1961 [Feb. 20, 1961], No. 14204/61. Heading DID. In a drafting device for spinning or preparatory machines comprising two aprons each guided over at least two guides so arranged that the aprons run together for a certain distance, at least one apron comprises an endless belt of elastic material of convex cross-section and reinforced side-edges bearing on the guides. The section of the upper apron is shown at 1 in Fig. 8, the convexity becoming flattened where the apron engages a lower apron 15 of standard pattern. The upper apron is carried by rollers 10 of the shape shown being produced by collars 14; the thickened portions 3 are accommodated on cylindrical, stepped, or frusto-conical parts 12. Two such rollers may be accommodated on either side of a central support on a common shaft. The apron may be accommodated on two such rollers of the same or different diameters, with or without a tensor forward of the smaller roller, or on one roller and a tensor; in each case the tensor is shaped as at 21 in Fig. 15, having a gap 23 to allow the apron to flex when in contact with the lower belt, and ends shaped to receive the thickened ends of the apron. For longer fibres, a third roller may be provided between the two guide rollers, or a third independent roller may be provided rearwardly of the apron. The apron may be used in conjunction with a standard apron running over two upper and one lower roller, the upper rollers being of different diameters, and having between them, if desired, an additional roller or a guideplate, or when a tensor is provided forwardly of the front roller of the upper apron, a similarlyplaced tensor is provided in the lower apron. Finally, when the upper apron runs over one roller and a tensor, the lower apron may be similarly guided. The upper rollers may be weighted and the lower ones driven.
Patent GB-1460544-A (GB)
Title: Preparation of 2,5-hexanedione
IPC: C07C45/30
Filed: 1975-04-07
Abstract: 1460544 2,5-Hexanedione DIAMOND SHAMROCK CORP 7 April 1975 [8 April 1974] 14215/75 Heading C2C 2,5-Hexanedione is prepared by oxidizing allylacetone in the presence of copper chloride and oxygen, at least part of the copper chloride being supplied as cupric chloride, in a heterogeneous solvent comprising water and at least one of 1,2,4-trichlorobenzene, hexachlorobutadiene, 1,2,4-triethylbenzene, diphenyl ether and α-chloronaphthalene.
Patent GB-1043715-A (GB)
Title: Support structure for vehicle seats
IPC: A47C3/025
Filed: 1963-04-09
Abstract: 1,043,715. Resilient mountings; seats. SOC. ANON. ETABLISSEMENTS SABLEFRERES. April 9, 1963 [April 9, 1962], No. 14233/63. Headings A4J and A4U. A vehicle seat 19 is connected to a base 1 by a parallelogram linkage 7, 20-21 and is maintained away therefrom by a self damped resilient element 28 comprising a helical spring embedded in a sleeve of inherently self-damping material. The linkage comprises a U-section link 7 having an elbowed end 18 and twin links 20-21, pivoted on shafts 16, 22 carried by the seat support 19 and on shafts 4, 5 carried between bearing plate 2 on the base 1. The elbowed end 8 is adjustably connected by a handled sliding part 9 which selectively engages by means of a stud 11 thereon holes 12, 13, 14 thereby to vary the preload in the resilient element 28. The element 28 is supported at one end by a washer 29 held on a rod 30 extending freely through the element 28 and through the end pieces 27 of a shackle 24 pivotally connected, as at 23 to a lug 10 on the sliding part 9. The rod 30 is pivotally connected to a pin 33 integral with an arm 34 rigid with a shaft 6 extending between the bearing plates 2, the shaft 6 being rotatable by a hand lever 35 which is selectively lockable by a stud and hole system 36, 39-41 to vary the height of the seat support 19.
Patent GB-426159-A (GB)
Title: Improvements in or relating to boots and shoes and to insoles therefor
IPC: A43B7/06
Filed: 1934-05-11
Abstract: 426,159. Ventilating footwear. HOWE, A., and CLARKE, J. H., (trading as CLARKE & CO., J. H.), Grovena Works, Grosvenor Street, Leicester. May 11, 1934, No. 14312. [Class 17 (ii)] A shoe with interior ventilation during wear has an insole with perforations to admit air into the interior of the shoe and imperforate sponge or cellular rubber material secured to its underside, either before or after lasting, and which, when subjected to asqueezing action under the weight of the wearer, will set up a pumping effect in the perforations. In one form, a filler 4 of sponge or like cellular rubber is stuck to an insole 1, at the forepart, or, if desired at one or more other parts also, or over the whole of the insole in such manner as to prevent moisture penetrating to the shoe interior. The insole 1 has perforations 2 arranged in rows or any desired way behind the sponge rubber for the passage of air, and a sock with perforations corresponding to those in the insole may be provided and stuck to the insole, e.g. by parallel streaks of adhesive so as to leave channels for the passage of air to additional perforations in the sock, e.g. at the waist. The sponge or cellular rubber has a skin on one or both faces which when provided on one face only is located away from the insole.