baber/WOPTO huggingface dataset:
Patent GB-820417-A (GB)
Title: Improvements in reciprocating pumps
Inventor: PEASTER BERTRAM ANTHONY
IPC: F04B49/24
Filed: 1956-11-06
Abstract: 820,417. Swash plate pumps. INTEGRAL Ltd. Jan 28, 1957 [Nov. 6, 1956; Nov. 15, 1956], Nos. 33879/56 and 34954/56. Class 102(1). [Also in Group XXIX] A hydraulic pump comprises a plurality of hollow pump plungers movable in associated cylinders and means subject to pump delivery pressure for controlling the spill of liquid from the cylinders during the discharge strokes of the plungers, thereby varying the delivery of the pump according to the flow requirements of the system. The pump comprises a casing 100 accommodating a plurality of cylinders and associated plungers 10 reciprocated by a swash plate 13 fixed to a driving shaft 113. Each plunger has a central bore 11 and a lateral spill port 12 controlled by a sleeve valve 24 surrounding the plunger. The spill valves are connected by a plate 15 loaded by a spring 16 and attached by a rod 17 to a differential servo piston 18. The left hand face of the piston 18 is subject through a duct 118 to pump delivery pressure. The right hand face of the piston 18 is subject to pressure which is a function of the delivery pressure fed through a restrictor 20 and duct 19. A spring balanced control valve 21 sensitive to the pressure in the duct 19 maintains the pressure at a predetermined value. Under normal equilibrium conditions the valve 21 is in a floating position. When however, for example, the flow requirements of the system are reduced the pump delivery pressure tends to increase. This increase in pressure felt simultaneously on both sides of the piston 18 causes the valve 21 to open a little further. The resulting increase in flow through the valve 21 causes a drop in pressure on the right hand side of the piston 18, which moves to the right, causing the sleeve valves 24 to increase the amount of spill and reduce the delivery of the pump. A flow limiter 31 may be included in the system to limit the maximum delivery of the pump. A piston 28 balanced by a spring 30 is subjected on opposite faces to the pressure drop across a restrictor 27. The right hand end of the beam 22 engages an elongated slot in the piston 28 such that when the pressure drop across the restrictor reaches a pre-determined value according to the maximum flow requirement the piston 28 moves upwards to open the valve 21 to reduce the pump delivery. The fixed restrictor 27 may be replaced by a variable needle valve operated by a servo piston subject to a pressure differential determined by the speed of a hydraulic motor driven by the pump to maintain the speed of the hydraulic motor constant. The differential servo piston 18 may be replaced by a servo piston having faces of equal area. Instead of the spring 16 the piston rod may be formed with two faces of different area enclosed in a pressurized chamber such that the fluid pressure acting on the larger face tends to move the piston 18 to the left.
Patent GB-934438-A (GB)
Title: Weighing balances
IPC: G01G1/34
Filed: 1959-10-06
Abstract: 934,438. Weighing balances. T. CHYO. Oct. 6, 1959, No. 33901/59. Class 143. [Also in Group XXXVIII] A load first weighed approximately against a coil spring 16 (Fig. 1) or liquid-displacing counterweight 73 (Fig. 7) is subsequently weighed accurately using loose weights 41 whose initial setting is made in dependence on the result of the approximate weighing. In use of the apparatus of Fig. 1, a load in scale pan 7 will tilt balance beam 2 against the resistance of the spring 16 which is then further tensioned to restore balance by rotating nut 19, the extent of rotation necessary being used as a measure of the approximate weight. The rotation may be performed manually or by a motor automatically stopped by a switch 25 which senses the return of the beam to its balanced state. The spring system is then completely detached from the beam by operating lifting device 60, and the accurate weighing proceeds using the weights 41. The operation of the apparatus of Fig. 7 is similar, the weight 73 dipping into mercury 74 in a vessel 75 and a platform 77 on which the vessel rests being adjustable in height by means (Fig. 8, not shown) equivalent to the nut 19 of Fig. 1. In both embodiments, rotation of a knob 12 and attached spindle 11 causes cams to release first the balance beam, then the scale pan, then the lifting device 60, Fig. 1, or equivalent device (not shown) of Fig. 7, and finally the weight placing mechanism 56. The latter is controlled by a plurality of cams 46 on each of two or more shafts 48, each cam controlling the placing of one of the weights 41 by operating on a pin 47 carried by a weight placing shaft 44. The cams are operated sequentially through a motor drive to provide a predetermined sequence of changes in counterweight load. The known result of the approximate weighing may be used to start this sequence at an apprpriate point dependent upon the known approximate weight. The entire operation may be made automatic by the use of an electronic control system (see Group XXXVIII) which detects unbalance of the beam during the approximate weighing and automatically adjusts the continuously variable resistant to restore balance, the extent of the adjustment being detected electronically and used to set the starting point of the accurate weighing cycle automatically.
Patent GB-996819-A (GB)
Title: Medicament in solid form
IPC: F27B14/00
Filed: 1963-08-28
Abstract: The invention comprises an injection-moulded medicament in solid form, which contains the solid active substance, or a mixture of solid active substances, embedded in a thermoplastic synthetic resin or resin mixture, which is capable of being injection-moulded, is physiologically tolerable and is at least partially soluble in artificial gastric and/or intestinal juices. The medicament may be administered perorally.  The synthetic resins may have a softening point below 160 DEG  C. and they may be linear condensation or addition polymers.  Specified polymers are polymers, with end position, free carboxyl or esterified carboxyl or carbonamide groups, polyamides, glyptal resins, condensation polymers of glycerine with phthalic anhydrides, polyurethanes, polyvinyl polymers, cellulose polymers and mixtures thereof.  The medicaments may include fillers, swelling substances, electrolytes, and surface-active agents. Specified active substances are 5-(1-cyclohexenyl)-5-ethyl calcium barbiturate, 1-methyl-2-phenyl-ethyl-amine sulphate, 6 - sulphanilamido - 2 : 4 - di - methylpyrimidine, and benzyl - a  - pyridyldimethyl ethylenediamine hydrochloride.  The active substances, or portions thereof, may first be encased in thermoplasts which are difficultly soluble in digestion juices, e.g. acrylic copolymers or in waxes or fats.  Mixtures of more difficultly soluble thermoplasts with more readily soluble synthetic resins, e.g. polyvinyl pyrrolidone, cellulose derivatives, or polyvinyl alcohols may be used as starting materials.
Patent GB-447076-A (GB)
Title: Improvements relating to vehicle suspension systems
IPC: B60G3/20
Filed: 1934-11-28
Abstract: 447,076. Vehicle spring-suspensions ; brakes. VAUXHALL MOTORS, Ltd., Luton, Bedfordshire. Nov. 28, 1934, No. 34181. Convention date, Nov. 29, 1933. [Class 108 (ii)] [See also Group XXXIV] In an independent spring suspension for the wheels of motor &c. vehicles of the kind in which the stub axle is mounted upon and guided by rocking arms or levers 2, 3, one at least of which is spring-controlled, the brake anchor disc 6 is rotatably mounted on the stub axle 5 by means of small diameter or needle roller bearings 9 so as to facilitate the relative movement between the arms and the anchor disc. As shown, one pivoted arm 2 is spring-controlled, while the other 3 is connected at 7 to the disc hub 10, which is rotatable on an enlarged portion 8 of the axle 5. The outer surface of the hub 10 bears against a flange 11 on the arm 2 through the medium of a packing-ring 12, while its inner edge projects into the hub 14 of the stub-axle and bears against a washer 19 interposed between the hub and the stub-axle bearings. A nut 17 screwed on the end of the axle 5 permits simultaneous adjustment of the bearings 9, 15, 16 of the hubs 10, 14 respectively.
Patent GB-1135148-A (GB)
Title: Hydrostatic cooker
Inventor: YAWGER ERNEST STANLEY
IPC: A23L3/04
Filed: 1967-07-26
Abstract: 1,135,148. Endless conveyers. FMC. CORP. 26 July, 1967, No. 34234/67. Heading B8A. [Also in Division A2] In an apparatus for cooking food contained in wide mouth glass jars, the contents of the jars are cooked by passing the jars through streams of cascading water at the cooking temperature while subjecting the external surface of the jars to a pressurized gaseous fluid during said cooking, such gaseous fluid being maintained at a pressure sufficient to completely or partially balance the internal pressure of the jars. Glass jars C are loaded at a station F on to carrier bars 20 of a chain conveyer 18 and transported via an inlet leg 12 of an hydrostatic cooker 10 into a central cooking chamber 16 in which heated water is cascaded on to the jars C from troughs 84 fed, via conduits 82 and a manifold 80, by a pump 78. Steam is injected into the cooking chamber 16 by a conduit 92 and into the cooker water by nozzles 108, in response to the actuation of valves 90, 100 by temperature sensing devices 94, 104 respectively, The gaseous pressure within the chamber 16 is maintained by compressed air fed into the top of it by a conduit 68, in response to the actuation of a valve 70 by a pressure detecting device 74. The jars C are discharged, via an hydrostatic outlet leg 14, at a discharge station D.
Patent GB-1155141-A (GB)
Title: The Treatment of Polyacrylonitrile Filaments for Preparing High-Bulk Yarns
IPC: D01D5/20
Filed: 1966-07-29
Abstract: 1,155,141. Artificial filaments. ACSAAPPLICAZIONI CHIMICHE S.p.A. 29 July, 1966 [10 Aug., 1965], No. 34286/66. Heading B5B. [Also in Division D1] A filament 1 of polyacrylonitrile is stretched by 1À1-2À0 x its original length while it passes in contact with a heated channelled roller 5, so as to produce along the length of the filament alternate stretched and unstretched portions, the relative lengths of which, and the degree of stretch being such that when the filament is cut into staple lengths, substantially all such lengths will include a portion A<SP>1</SP> of high heatshrinkability and a portion B<SP>1</SP> of low heatshrinkability. The roller 5 may have channels of varying widths and/or separation, and may be heated between 60-200 C. The lengths A<SP>1</SP> and B<SP>1</SP> may be between 15-100 mm. The staplefibres produced are used in making yarns of high bulk (see Division D1).
Patent GB-1501734-A (GB)
Title: Astrological apparatus
IPC: G04B45/00
Filed: 1975-08-18
Abstract: 1501734 Fortune-telling devices VER-CON INC 18 Aug 1975 34315/75 Heading A6H [Also in Division G5] Apparatus 10 for presenting astrological data has a time setting wheel 27 driven by a clock 12 through gears 21, 23, the wheel carrying adjustable trip members 29, 31 which successively engage a lever 32 to respectively switch on and then off a motor 40 whereby the data on an opaque web 42 is driven between spools 44, 48 to pass a window 14 for direct viewing.
Patent GB-1452654-A (GB)
Title: Production of a moulded bonded non-woven fibrous product
IPC: D04H1/54
Filed: 1974-08-05
Abstract: 1452654 Compressing non-woven bicomponent fibres IMPERIAL CHEMICAL INDUSTRIES Ltd 4 July 1975 [25 July 1974 5 Aug 1974] 32874/74 and 34329/74 Heading B5A A moulded, bonded, non-woven, fibrous product is formed by taking an open web of heat stabilized, crimped fibres, at least 20 wt. per cent of which are bondable bicomponent fibres having a first polymer component and a second polymer component integral therewith along at least a portion of its length, subjecting the web to a heat treatment at a temperature above (preferably, less than 15‹ C. above) the softening temperature of the second but below the softening point of the first polymer component to effect interfibre bonding, compressing the web to the desired shape and density while maintaining, the heat treatment, and then causing or permitting the moulded product to cool. Suitably a compression ratio in the range 2 : 1 to 9 : 1 is used. Particles, e.g. active carbon, ionexchange resin, may be incorporated in the web; alternatively, the web may be coated or partially or completely impregnated with a synthetic resin to form a reinforced article.
Patent GB-521758-A (GB)
Title: Improvements in balls for games
IPC: A63B41/08
Filed: 1938-11-25
Abstract: 521,758. Balls for games. REACH; M. B. Nov. 25, 1938, Nos. 34345 and 34346. Convention dates, Nov. 30, 1937, and Jan. 14, 1938. [Class 132 (ii)] The body of a ball for games is provided with one or more recessed ribs 1 on its outer surface Figs. 3, 4, against the sides of which.the edges of the covering panels 2 are butted. The body may be formed of rubber or fabric impregnated with rubber or canvas impregnated with rubber and sewn to produce the required shape and the rib which preferably consists of mixed rubber and fibre is inserted in the mould when vulcanizing or otherwise united to the body. The cover is preferably of leather secured to the body by adhesive in a final vulcanizing process. In the example shown the body may have end pieces 5 of rubber and end covers 2a against which the panel cover strips abut. A bladder 4 inflated in any suitable manner may also be provided. The recess in the ribs may be formed by cutting away the material of the rib. Projections to stimulate lacing may be united to the body and the panel cover butted against them.
Patent GB-777743-A (GB)
Title: Method of producing linings for containers
IPC: B23K11/00
Filed: 1954-11-26
Abstract: 777,743. Making containers; welding by fusion. BALDUS, R., [trading as MUNK & SCHMITZ KOMM.-GES.]. Nov. 26,1954 [Dec. 9, 1953], No. 34380/54. Classes 83( 2) and 83 (4). In making a lining for an iron, concrete, wood, &c. container, corrosion-proof thin steel sheets of a thickness of the order of 0.5 mm. are shaped to the wall of the container, are spot-welded near their abutting edges to the wall of the container or to metal supports fitted to the walls and the abutting edges are then welded. If the container is of iron, the sheets may be spot-welded to supports of the same material as the sheets or to supports plated with such material. In forming the lining of a non-metallic container metal supports of the same material as the sheets may be employed. Alternatively a foil of the same material as the sheets may be placed between the sheets and supports. The lining may be additionally connected to the container by pins screwed to the lining. In an embodiment sheets 1, 2, Fig. 1 are spot-welded to supports 3, 4 of the same material as the sheets before fusion welding the edges in a seam 5. A single support, preferably perforated, may be used beneath the seam. The end of one or both sheets 1, 2, Fig. 3a, may be turned up to provide weld metal to supplement or replace metal from an electrode or rod.
Patent GB-850884-A (GB)
Title: Improvements in and relating to snap fastener socket members
IPC: F16B21/07
Filed: 1958-10-27
Abstract: 850,884. Stud and socket fastenings. UNITEDCARR FASTENER CORPORATION. Oct. 27, 1958 [Oct. 31, 1957], No. 34385/58. Class 44. 'In a stud and socket fastening the socket 10 has a base 16 with an upstanding wall 22 which forms a stud-receiving cavity 24, is slotted at 26 to provide a resilient tongue 28, and has a locking- shoulder 30 formed therein situated opposite the tongue 28. The socket 10 is a three-side lock type so that a stud 14, having a reduced neck 36 and an enlarged head 38, is inserted into it by tilting. The stud first engages the locking-shoulder 30 and then, on entering the socket, it forces the tongue outwardly which, on returning, holds the stud in situ. The stud is released by moving the tongue outwardly so that the stud can be tilted about the shoulder 30 of the socket. The stud 14 is attached to a sheet 11 by a member 141, and the socket 10 is attached to a sheet 12 by a rivet 20.
Patent GB-604178-A (GB)
Title: Improvements in and relating to change-speed gear-boxes
IPC: F16H3/097
Filed: 1945-12-19
Abstract: 604,178. Variable - speed gearing. KEGRESSE, C. M. C. R., KEGRESSE, A. V., and JAMMES, E. Dec. 19, 1945, No. 34473. Convention date, Aug. 7, 1942. [Class 80 (ii)] Concentric shafts 3, 4, carrying clutch plates 1, 2, are connected by gear trains 5, 7, and 6, 8, to countershafts 9, 10, equally spaced from the axis of the shafts 3, 4. Both countershafts carry identical gears 14, 16, and clutches 24, 25, 26. Gears 16 mesh with a loose gear 15 on shaft 3 and gears 14 with a gear 12 fixed to the driven shaft 11. Either countershaft can be made effective by clutching either plate 1 or 2 to the driving member, other gear changes being effected by operating the slidable clutch members 24. In the construction shown, five speeds are available, one of which is a one-to-one drive by coupling the shaft 3 directly to the shaft 11 by coupling members 1.8, 21. Two more speeds can be obtained by adding a wheel to each countershaft and to the drive shaft. Specification 585,716 is referred to.
Patent GB-1313810-A (GB)
Title: Adjusting mechanism for zoom lens system
IPC: G03B17/14
Filed: 1971-07-22
Abstract: 1313810 Zoom lens mounting EASTMAN KODAK CO 22 July 1971 [23 July 1970] 34473/71 Heading G2J A lens system has at least one axially movable component for varying the magnification and an adjusting mechanism for the component comprising a lever 46 mounted for pivotable movement about a pivot 47 intermediate its ends, one end being connected by means producing linear movement thereof on pivotable movement of the lever and the other end being connected to one end of a linearly movable slide 54 by flexible member 52 which has sufficient rigidity such that linear movement of the slide causes rotation of the lever. As shown, slide 54 is moved by cam 62 attached to knob 60. Spring finger 48 biases lever 46 to move in a clockwise direction by engagement with part of the camera etc. Link 36, pivoted about 42 moves a second component of the lens. Front component 10 may be movable for focusing.
Patent GB-392992-A (GB)
Title: Improvements in and relating to reciprocating ram pumps
IPC: F04B9/04
Filed: 1931-12-15
Abstract: 392,992. Reciprocating- pumps. TOWLER, J. M., Oaklands Engineering Works, Rodley, near Leeds. Dec. 15, 1931, No. 34751. [Class 102 (i).] A pump comprises three or more parallel cylinders in a solid block B, the plungers a being operated, against the action of springs c by eccentrics d, e, f integral with the driving shaft g. The shaft portions k, l between the eccentrics are of approximately oval crosssection. The eccentrics are surrounded by ball or roller bearings m of less width than the eccentrics and positioned by washers o, p, q, r. The ends of the shaft are supported in bearings n, one bearing being mounted on a bush r on the shaft to permit threading the bearings m on to the eccentrics. The bush s is secured by a nut u and washer t. The carriers v for the valves b are held in position by the plunger springs c.
Patent GB-846952-A (GB)
Title: A new organic cuprous compound and process for its production
IPC: C07C333/16
Filed: 1957-11-07
Abstract: The invention comprises the cuprous compound of ethylene bis-dithiocarbamic acid containing both electrovalent and chelated copper and having the empirical formula C4H6S4Cu3N2, and its preparation by reacting an aqueous solution of an alkali metal or alkaline earth metal salt of ethylene bis-dithiocarbamic acid at or about ambient temperature in an atmosphere of inert gas, with a cuprous chloride solution in the presence of an alkali metal chloride and while maintaining the pH of the reaction mixture at 3-4, and recovering the resulting cuprous compound.  The sodium ethylene bis-dithiocarbamate may be prepared in situ by reacting CS2 with ethylene diamine and neutralising with sodium hydroxide.  The compound of the invention is stated to have fungicidal properties.
Patent GB-913442-A (GB)
Title: Improvements in or relating to the preparation of urea suitable for granulation
IPC: C07C273/16
Filed: 1960-10-11
Abstract: An aqueous urea solution is evaporated to produce a urea melt having a low biuret concentration by drying said solution at elevated temperatures in the form of a thin film in a normal tubular falling film evaporator, without additional mechanical means and in the presence of a counter-current of air.  The aqueous solution is preferably evaporated at a temperature of between 125 DEG  and 150 DEG C. and the counter-current of air is preferably pre-heated to a temperature of between 130 DEG  and 160 DEG C. A suitable evaporator consists of a number of upright parallel heated tubes, over the internal surface of which the solution passes.  Specification 767,716 is referred to.
Patent GB-757290-A (GB)
Title: Improvements in or relating to pulse-modulation intelligence transmission systems
Inventor: VILLE JEAN ANDRE
IPC: H04B14/06
Filed: 1954-12-01
Abstract: 757,290. Pulse code modulation. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. Dec. 1, 1954 [Dec. 31, 1953], No. 34832/54. Class 40 (5). In a delta binary pulse code modulation communication system the comparison wave is derived by a weighted integration of the code pulses, full wave rectification of these integrated pulses, amplitude modulation of the original code pulses in accordance with the rectified integrated pulses, and integration of the amplitude-modulated pulses. Transmitter.-The incoming intelligence wave, to which a D.C. component has been added at 2, Fig. 1, to make it unidirectional, is sampled at 3 under the control of a pulse generator 5 and compared with the comparison wave to generate positive or negative pulses of variable amplitude which are clipped at 4 to form the pulse code train. The positive code pulses are passed by a gate 6 to the transmitter 8 and also to a mixer amplifier 10 to which the negative code pulses are passed by a gate 7 so as to reconstitute the code pulse train. This train is passed to the weighted integrator 10. This comprises Fig. 3 (not shown), a condenser, shunted by a resistor, and charged (or discharged) by the incoming code pulse train. The integrated pulses are rectified at 12 (whereby negative pulses are added to the positive pulses) and this signal is delayed at 13 by approximately half a pulse period before being used to amplitude modulate the original positive code pulses at 14 and the original negative code pulses at 15. The amplitude-modulated pulses are algebraically added by the integrator 16. This comprises, Fig. 4 (not shown) a condenser fed via diodes from a transformer with two primaries, one for each amplitude-modulated pulse train. The final integrated signal is rendered unidirectional by the addition of a D.C. component at 17 and fed back as the comparison signal for the comparator 3. Receiver.-The original code pulses are obtained from the incoming positive code pulses by the addition of locally generated negative pulses during the " off " periods. The code pulses are then integrated, rectified, and delayed to form an auxiliary signal which in turn is used to amplitude-modulate the code pulses, and this amplitude-modulated pulse train is integrated-as in the corresponding stages of the transmitter-but the final signal is now the demodulated intelligence wave which is amplified and passed via a low-pass filter to the output.