baber/WOPTO huggingface dataset:
Patent GB-462695-A (GB)
Title: Improvements in heat exchangers for fluids
IPC: F28F3/08
Filed: 1935-09-13
Abstract: 462,695. Plate heat - exchangers. UNITED WATER SOFTENERS, Ltd. Sept. 13, 1935, No. 25497. Convention date, Sept. 21, 1934. [Class 64 (iii)] A heat-exchanger for fluids comprises two preferably semi-cylindrical casings 1 having webs forming two tortuous channels for the fluids and adapted to be bolted together with a ported plate 6, Fig. 4, between them and with the parts 23 of the channels of the respective casings oppositely inclined. The upper casing is provided with inlet and outlet ports for the fluids. In use, fluid entering the port 13 passes into the space 19 of the upper casing and through transverse ports in the plate 6 and a channel of the lower casing into the channel B of the upper casing and thence through alternate channels in both casings in an approximately helical path to the outlet port 15. Another fluid enters the space 20 of the upper casing through the port 16 and passes through ports in the plate 6 and a channel of the lower casing into the channel E of the upper casing and thence through alternate channels in both casings to the outlet port 14 in counterflow to the first fluid. In a modification suitable for use in laundries for heating fresh water by waste water, the exchanger consists of two rectangular dish-shaped casings formed with sinuous webs and clamped together with a ported plate between them. In another arrangement, the exchanger comprises a channelled section 25, Figs. 6, 9, having inlet and outlet ports for the fluids and flat or dish-shaped cover plates and through which the fluids flow in the paths X, Y.
Patent GB-1319971-A (GB)
Title: Air filter cleaning method and apparatus
IPC: B01D46/04
Filed: 1970-05-27
Abstract: 1319971 Cleaning gas filters JOY MFG CO 27 May 1970 [17 June 1969] 25555/70 Heading BIT Air filtration apparatus with reverse flow cleaning comprises a housing 10 divided into a dirty gas compartment 18 and a clean gas compartment 20 separated by a number of filter elements 22 of hose or bag form The cleaning is carried out by a cleaner 30 positioned above each bag mouth and designed such that on the commencement of flow of pressurised air through the cleaners the mouth portions thereof descend from above the filter mouths to a position sealed against the filter mouths. The cleaners each comprise a pipe 37 afixed to the compressed air feed pipe 52 and a cylindrical jacket 32 which may slide on pipe 37 and which has an air tight seal 38 at its top end and a nozzle 50 of small bore at its lower end. The jacket 32 is normally upwardly biased by spring 48 (Fig. 4) but upon commencement of air flow the pressure inside the jacket causes it to slide down (Fig. 5). A mouth portion 34 is afixed to the jacket for sealing with the mouth of the corresponding filter bag. Dust dislodged from the bags falls into hopper 15 and is removed by conveyor 14. In an alternative embodiment (Fig. 6, not shown) the casing 10 is cylindrical, the filter elements being in a circle and there is only one cleaner which is rotatably mounted so that it may be directed to the mouth of each filter element in turn.
Patent GB-1431055-A (GB)
Title: Dynamo-electric machine
IPC: H02K35/04
Filed: 1972-06-01
Abstract: 1431055 Dynamo-electric machines C RUDSKI 22 May 1973 [1 June 1972 3 July 1972] 25566/72 and 31037/72 Heading H2A A dynamo-electric machine comprises two spaced apart permanent magnets 1, 5, having aligned magnetic axes, the facing poles of the two magnets being of like polarity, and a ferromagnetic core 2 mounted for linear oscillation between the permanent magnets, the core carrying a drive winding 3 and an output winding 4, the drive winding being energized, in use, alternately by direct currents of opposite polarity to cause the oscillation, the oscillation causing a current to be induced in the output winding as a result of the movement of the output winding through the magnetic field of the permanent magnets. The drive winding may be energized from a battery through a switch Fig. 2 (not shown) controlled by the movement of core 2. A multi-unit machine may be formed by employing a combination of several basic machines of the type shown.
Patent GB-944237-A (GB)
Title: Improvements in and relating to laminated leaf spring assemblies
Inventor: ROGERS JOHN HENRY
IPC: F16F1/22
Filed: 1962-07-04
Abstract: 944,237. Springs. F. ROGERS & SONS PTY. Ltd. July 4, 1962, No. 25662/62. Heading F2S. An overload leaf assembly 10 for a leaf spring assembly 12 comprising a laminate of arcuate leaves, includes an arcuate overload leaf 11 which is longer than at least one of the leaves of the leaf spring assembly, a pad 17 of a resilient material, e.g. rubber, being mounted adjacent each end of the overload leaf. In the construction shown, the pad 17 is substantially cylindrical. A retainer clip 18 secured at or near each end of the overload leaf 11, a rectangular crosssectioned, resilient cushion block 22 being mounted between the ends of the upwardly extending arms 19 of the clip. The mounting means may comprise a bolt 20 passing through the arms and eccentrically through the block 22 to permit adjustment of the height of a part of the block above the leaf spring assembly 12 by rotation of the block.
Patent GB-462831-A (GB)
Title: Improvements in lingerie tape holders
IPC: A41F15/02
Filed: 1935-09-16
Abstract: 462,831. Hook fastenings. DELONG HOOK & EYE CO. Sept. 16, 1935, No. 25701. Convention date, Sept. 24, 1934. [Class 44] A device for holding the shoulder straps of women's underwear in position comprises a relatively long, straight shank 2, having means such as an eye 3 for attachment to the dress, and a loop 10 for the tape having an opening 8 near the shank. The loop 3 may be in a plane at right-angles to the plane of the loop 10, as shown, or may be in the same plane, and may be replaced by a long pin, or by a pair of eyes. The wire forming the loop 10 instead of terminating as an eye 13 may be continued so as to enter the loop.
Patent GB-1172831-A (GB)
Title: Variable Drive Transmitting Arrangements.
Inventor: FRANKE REIMAR
IPC: F16H9/24
Filed: 1965-06-17
Abstract: 1,172,831. Haymaking machines. MASSEY-FERGUSON G.m.b.H. 13 June, 1966 [17 June, 1965], No. 25745/65. Heading AlF. [Also in Division F2] In a haymaking machine of the type described in specification 25,748/65 wherein rakes (33) can be rotated at two speeds in one direction and at one speed in the other direction, a change-speed gear between a tractor power-take-off shaft and the rake driving shaft comprises a chain 62 engaging an output sprocket 55 and input sprockets 56, 57, 58 which are selectively connected to the tractor power-takeoff shaft to provide two forward and reverse ratios.
Patent GB-585105-A (GB)
Title: Improvements in pipe couplings
IPC: F16L19/065
Filed: 1944-12-22
Abstract: 585,105. Pipe joints, COMPRESSION JOINTS, Ltd., and MILLARD, G. A. Dec. 22, 1944, No. 25750., [Class 99 (i)] In a pipe coupling of the kind in which a sealing ring d is compressed . around a pipe a and against the conical seating c<1> of a socket c, the ring is rotatably secured within the coupling nut e by means of a terminal flange d<1> which is bent over on itself and engages an annular groove e' in the nut. Specification 483,092 is referred to.
Patent GB-782562-A (GB)
Title: Improvements in and relating to boots
IPC: A43B5/00
Filed: 1953-09-17
Abstract: 782,562. Boots. WEGNER, T. O. June 3, 1955 [Sept. 17, 1953], No. 25773/53. Class 17(2) The upper of a rubber-soled boot, more particularly for sports wear, includes a tubular portion 3 of elastic material of woven or knitted character with the weft threads of cotton and warp threads of rubber or the like, to embrace the lower part of the leg and ankle of the wearer, and also a portion 4 over the instep. It may be in one or more parts. It is sewn to a part 2 of elastic or non-elastic material at 5. Pads 11, 12 thereon may reinforce the upper. Stiffening strips 7-9 may be provided and a rib 6 may be formed at the top of the tubular part. The lower part of the upper may be of leather or other non- elastic material.
Patent GB-224231-A (GB)
Title: Improvements in and relating to electrical connectors
IPC: H01R11/22
Filed: 1924-10-29
Abstract: 224,231. British Thomson-Houston Co., Ltd., (Assignees of Schild, C. A.). Oct. 30, 1923, [Convention date]. Brush-holders. - A metal sleeve 3, in which a brush 1 slides under the control of a spring 5 and plug 4 screwed into the end of the sleeve, is forced longitudinally into a fibre sleeve 7 and both are then driven into a suitable holder in a motor frame 6 opposite the commutator.
Patent GB-797507-A (GB)
Title: Improvements in or relating to therapeutically valuable cysteine compounds
Filed: 1955-09-08
Abstract: The invention comprises compounds of the general formula RO.CO.CH(NH2)CH2.SH wherein R represents a wholly aliphatic hydrocarbon radical of 8 to 18 carbon atoms, and acid addition salts thereof.  Such compounds are obtained by reacting a cysteine acid addition salt with at least four molecular equivalents of an alcohol ROH in the presence of an acid corresponding to the anion of the cysteine salt.  Fifteen times the theoretical amount of alcohol may be used.  In examples: (1) cysteine n-octyl ester hydrochloride is prepared by reacting cysteine hydrochloride with ten times the theoretical amount of dried primary octanol in a current of dry hydrogen chloride.  The hydrochloride, treated with ammonia, gives the free ester which is then converted to the sulphate.  In a generally similar manner there are prepared in further examples, decyl, dodecyl, myristyl, cetyl and octadecyl esters.  In a further example, cysteine lauryl ester is recovered from the hydrochloride by treatment with sodium in liquid ammonia and reconverted at -35 DEG C. in acetone solution to the hydrochloride again.  In the recrystallization of cysteine cetyl ester hydrochloride from acetone, small amounts of the 2 : 2-dimethyl-thiazolidine-4-carboxylic acid cetyl ester hydrochloride are formed.ALSO:Cysteine derivatives of the formula <FORM:0797507/VI/1> where R represents a wholly aliphatic hydrocarbon radical of 8 to 18 carbon atoms and acid addition salts thereof are used as ingredients of therapeutic compositions for human or veterinary use.  With water or buffered aqueous liquid they form gels of consistency between that of glycerine and that of agar-agar which may be used as ointments or in the form of suppositories.  The preparation of the esters is described (see Group IV (b)).
Patent GB-428907-A (GB)
Title: Improvements in bobbin braid making machines
IPC: D04C3/00
Filed: 1934-09-07
Abstract: 428,907. Braiding. ZEHNDER, A., 27, Z³rcherstrasse, Baden, Switzerland. Sept. 7, 1934, No. 25831. Convention date, Sept. 12, 1933. [Class 74 (i)] To produce braid with alternate tight and loose sections a, b the speed of the take-up is varied by the use of a pulley 5 with two pins 6, 7 which transmit the drive by an endless coiled spring 8 to the takeup pulley 9. The speed of the shaft 10 for drawing off the finished braid is thus varied.
Patent GB-1172799-A (GB)
Title: Method for the Fastening of Thermoplastic Objects to Metal Parts
IPC: B29C65/60
Filed: 1968-05-30
Abstract: 1,172,799. Riveting. FORD MOTOR CO. Ltd. 30 May, 1968 [1 June, 1967], No. 25882/68. Heading B3U. A thermoplastics lens 11 is fastened to a metal lamp holder 21 by studs 19 integral with the lens and a thermally compensating member 25 is interposed between the upset end of each stud and the holder. The lens is acrylic-type plastics and the member is polyethylene in sheet form with a series of apertures for the studs. The assembly is clamped before fastening and the stud end heated to 300 to 325 F. by a tool 31 which then deforms the stud. The tool may have a decorative pattern on its upsetting face. The tool contacts the stud until the shank is plastic and then the upset head is forcibly cooled either by circulating air, water or oil through the tool or withdrawing the tool and using a further cooled tool. The head sets before the shank so that tension is applied to the assembly as the shank cools. The coefficient of thermal expansion of the member 25 is such that its change in thickness under temperature changes is substantially equal to the difference between the thickness change of the shank and the metal holder. The allowable deviation from this equality is clearly defined in the Specification.
Patent GB-759888-A (GB)
Title: Fluid pressure gauges
Inventor: IFIELD RICHARD JOSEPH
IPC: G01L7/18
Filed: 1954-09-07
Abstract: 759,888. Pressure gauges. LUCAS (INDUSTRIES), Ltd., J. Sept. 6, 1955 [Sept. 7, 1954], No. 25896/54. Class 106 (2). A fluid-pressure gauge comprises a tube a containing the indicating liquid, a cylinder having two parts d, k of different diameters and a corresponding stepped piston i, j, the larger part d of the cylinder being connected to the tube a and having a controlled inlet e for fluid under pressure and a vent g controlled by the piston part i, the other end k of the cylinder being connected at m to the fluid whose pressure is to be measured. In use fluid is admitted to the cylinder d by a valve f until equilibrium is reached with the pressures on the two piston faces equal. The liquid in tube a then indicates the required pressure. To reduce friction the piston i, j may be rotated as a turbine. The apparatus may be used for calibrating other pressure gauges.
Patent GB-845729-A (GB)
Title: Load-handling pallet construction
IPC: B65D19/00
Filed: 1957-08-16
Abstract: 845,729. Pallets for handling loads. ARROWHEAD PRODUCTS Inc. Aug. 16, 1957 [May 31, 1957], No. 25995/57. Class 78 (4). A pallet comprising a plurality of deck-boards attached to spaced parallel bearers, has at least one elongated protective member spaced from and parallel to an end deck-board and mounted upon projecting ends of the bearers. As shown, a metal tube 6 is supported by U-shaped brackets 7, 8, 9 on the ends of bearers 1, 3, 2, the tube being welded or otherwise secured to the outer limbs of brackets 7, 9, but passing freely through holes in the inner limbs and in both limbs of bracket 8. The device may be applied to a reversible pallet by using two parallel plates projecting above and below the bearer instead of U-shaped brackets, and to a single-deck or reversible wing-type pallet by making the tube or tubes 6 extend beyond the brackets 7, 9 to the ends of the deck-boards.
Patent GB-518932-A (GB)
Title: Improvements relating to operating levers for bowden and like cables
IPC: B62L3/02
Filed: 1938-09-08
Abstract: 518,932. Brake &c. levers for cycles &c. PALMER, R. R. M. Sept. 8, 1938, No. 26216. [Class 136 (i)] A hand-lever. for operating a 'Bowden &c. cable is provided with a manually-movable member mounted on the lever-supporting-bracket so that it can be interposed in the gap between the bracket and the lever when the latter has been operated, whereby the tension of the cable is maintained, e.g., to retain a brake in operative position, without continued operation of the lever. A lever 3 for operating a cable 6. is pivoted to a bracket 1 by means of a pin 15, on which is adjustably mounted a plate 13, which is formed with a slot 14 engaging the pin and is secured by a nut 16. An arm 9 is 'pivoted to a lug 12 on the plate 13, and is provided with a spacer-lug 11 adapted to be swung into the gap 17 formed between the Bowden-wire seating 4 and the lever 3 when the latter is operated. The lug 11 'is wedge-shaped and formed with steps on its edge to bridge different sizes of gap, according to the degree of tension applied by the lever to the cable. The arm 9 is retained in its operative and inoperative positions by gravity or by a snap action at the pivot.
Patent GB-1440708-A (GB)
Title: Internal combustion engines
IPC: F01L3/20
Filed: 1974-06-13
Abstract: 1440708 Auxiliary inlet valve HGN MOTOREN GmbH & CO 13 June 1974 [14 June 1973] 26232/74 Heading F1B The cylinder head of an I.C. engine comprises a poppet valve controlled inlet 6 through which fuel/air mixture passes, and an auxiliary inlet, controlled by a non-return valve 11 which allows air to be drawn into the combustion chamber on the induction stroke. The valve 11, which communicates with the atmosphere, consists of a ball 13, Fig. 2, which is held in sealing engagement with a seat 12 when the pressure within the combustion chamber 5 exceeds atmospheric; on the induction stroke, the ball is drawn down until it engages abutments 14, 15 between which air may pass to enter the chamber. A throttle controlled rotatable shaft 20 having a transverse bore 21 may be utilized to delay the action of valve 11 until the engine has reached a pre-selected speed, thereby ensuring a richer mixture within chamber 5 at low speeds. Several valves may be used in the same combustion chamber, each governed by the throttle which permits each valve to operate at a different engine speed.
Patent GB-738895-A (GB)
Title: Devices for automatically controlling the secondary fuel supply in jet propulsion and other gas turbine engines
IPC: F02K3/10
Filed: 1952-10-20
Abstract: 738,895. Jet propulsion plant; turbines. SVENSKA FLYGMOTOR AKTIEBOLAGET. Oct. 20, 1952 [Oct. 18, 1951], No. 26321/52. Class 110 (3). [Also in Group XXIX] A device for automatically regulating the supply of secondary fuel to a jet-propulsion or other gas turbine engine comprises a centrifugal pump 2 for supplying secondary fuel past a fuel control valve or throttle 6 to a secondary combustion chamber 20, an air-driven turbine 1 for driving the pump 2 and an air valve 3 in the air supply pipe 30 to the air turbine 1, the valve 3 being controlled automatically in accordance with the delivery pressure of the main compressor 9, the delivery pressure of the fuel pump 2 and the surrounding air pressure and the fuel throttle 6 being controlled automatically in accordance with the delivery pressure of the compressor 9 and the pressure on exhaust side of the main turbine 11 driving the compressor 9. The valve 3 is actuated by an elastic capsule or bellows 4 having a restricted orifice in one end. The chamber 21 is supplied with air through a conduit 32 connected to the air supply pipe 30. Leakage of pressure air from inside the bellows 4 is regulated by a leakoff valve 36 actuated through a lever by a piston 44 subject to the secondary fuel pressure and through a pipe 45 and by a diaphragm 42 connected to an elastic capsule or bellows 38. The underside of the diaphragm 42 is exposed to the delivery pressure of the compressor 9. Its upper side and also the bellows 38 are exposed to atmospheric pressure. The throttle 6 is actuated by a spring-loaded liquid-operated piston 7 under the control of a leak-off valve 12 similar to the valve 36. The valve 12 is actuated through a lever 8 by a diaphragm 25 connected to an elastic bellows 24. The delivery pressure of the compressor 9 has access to the outside of the bellows 24 and to the underside of the diaphragm 25. The upper side of the diaphragm 25 is connected to the outlet of the turbine 11. In the event of failure of the throttle 6, at least a minimum pressure is maintained in the pump outlet by a spring-loaded valve 13. The secondary fuel feed may also be manually controlled by a further valve 14. The latter is actuated by fuel pressure acting on a spring-loaded piston 52 under the control of a manually-operated cock (not shown). A projection 15 on the valve 14 lies in the path of an arm 16 on the rotary valve 3 so that the valve 3 cannot open when the valve 14 is closed. Overspeeding of the turbine 1 and the pump 2 is prevented by a centrifugal governor 17 actuating a further leak-off valve 48 which controls the action of the bellows 4.
Patent GB-318263-A (GB)
Title: Improvements in and relating to turbo-compressors
IPC: F04D25/16
Filed: 1929-08-31
Abstract: 318,263. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Aug. 31, 1928, [Convention date]. Impellers in parallel; controlling.-Two turbo-compressors or compressor stages having different characteristics are connected in parallel and coupled together in order to prevent pulsation. The characteristics may be varied by varying the speeds of the individual compressors or by employing different blading or by both methods. In the form of apparatus shown in Fig. 2, the flow through the compressor a is divided into two parallel flows passing over impeller blades c, d, of different lengths and diffuser blades e, f. The two sets of blades are separated by a partition S. The superposition of the two characteristics has the effect of eliminating reversal of flow during the unstable range of working so that no pulsation occurs.
Patent GB-352800-A (GB)
Title: Means for heating the liquids of high potential electric switches
IPC: H01H33/55
Filed: 1930-09-05
Abstract: 352,800. High-tension switches. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Sept. 5, 1930, No. 26547. Convention date, Dec. 21, 1929. [Class 38 (v).] In a liquid - break switch, the liquid 8 in a container 6 having a heat-insulating layer 7, is heated by means of a resistance element 3 in a liquid or gaseous medium in the insulator 1 supporting the container 6, heat being transmitted by convection in the liquid and conduction through the ribbed cap 5. The insulator 1 may have a jacket surrounding it so as to leave an insulating air-space. In Fig. 3, a lead-in bolt 11 in an insulator 9 is surrounded by a pipe 17 connected to a steam or hot-water system, but in another form, Fig. 2 (not shown), a coil fed with A.C. surrounds the bolt so as to cause eddy-current heating which is conducted by the bolt to the liquid. The Specification as open to inspection under Sect. 91 (3) (a) refers also to heating by means of dielectric losses. This subject-matter does not appear in the Specification as accepted.
Patent GB-224362-A (GB)
Title: Improvements in gauges for indicating the efficiency of a steam condenser
IPC: G01L7/18
Filed: 1923-10-24
Abstract: 224,362. Scanes, A. E. L. Oct. 24, 1923. Drawings to Specification. Condenser systems.-The efficiency of a steam condenser such as described in Specification 28753/12, is indicated directly by a gauge in which a pressure is generated and differentially measured.