baber/WOPTO huggingface dataset:
Patent GB-230933-A (GB)
Title: Improvements in or relating to sound reproducing apparatus
IPC: G11B3/00
Filed: 1923-12-21
Abstract: 230,933. Skinderviken, J., and Mikro, Ltd. Dec. 21, 1923. Sound-boxes, arranging and supporting; electric and magnetic sound-boxes.-In sound-reproducing apparatus of the kind in which a microphone having a stylus engaging a record groove is carried by a rotatable arm and is connected electrically with a loud speaking telephone, the arm comprising two metal rods 17. 18 secured to an ebonite block 19 carrying terminals 20, 21, has a yielding and sound-insulating pad of spongy rubber 22 adapted to rest on the smooth surface of the gramophone case and rotate thereon so that the stylus may traverse the record. The microphone 10 is clamped in a ring 11 and insulated therefrom by fibre. The ring 11 is attached by a fiat spring 13 to a stylus holder 14 from which projects an arm 15 attached to the moving electrode 16. The body of the microphone is electrically and mechanically connected to the rod 17 and the ring 11 to the rod 18, The terminals 20, 21 are adapted to be connected to a battery and a loud speaking telephone.
Patent GB-956718-A (GB)
Title: Improvements in or relating to mountings for tension rollers for tape or belt drives
IPC: F16H13/02
Filed: 1960-09-19
Abstract: 956,718. Belt gearing; resilient mountings. SKF KUGELLAGERFABRIKEN G.m.b.H. Sept. 19, 1960 [Sept. 23, 1959], No. 32109/60. Addition to 935,031. Headings F2Q and F2S. [Also in Divisions D2 and E2] A support 10, Fig. 1, for a roller 11 tensioning a driving belt or tape 12 is hinged to a fixed bracket 3 by means of a loop 7 of flexible strip material clamped by bars 6, 8 respectively to the bracket and the support. The hingeing movement is limited by the bars 6, 8, themselves or by fixed or adjustable stops thereon. The loop 7 is formed by overlapping the ends of a flexible strip beneath the clamping bar 6. The loop may be stressed to act as a torsion spring, the clamping positions being selected to give the required bias in one direction, but as shown, the resilient bias is provided by a separate spring 13. A protective cap 4<SP>1</SP> for the loop may be secured to the bracket or the support. In a modification, two loops are clamped at an angle to each other, one above the other, to provide for hingeing movement in two planes. As shown in Fig. 2, a support 101 for a belt-tensioning and driving roller 11 combined with a friction wheel 11<SP>1</SP> driven by a wheel 15 is mounted on a bracket 3<SP>1</SP> by an assembly comprising upper and lower looped strips which are arranged at right angles and are stressed to act as springs respectively tensioning a belt 12<SP>1</SP> and providing the friction drive pressure.
Patent GB-335766-A (GB)
Title: Improvements in and relating to electric induction furnaces
IPC: H05B6/24
Filed: 1929-10-23
Abstract: 335,766. Lorenz Akt.-Ges., C. Oct. 25, 1928, [Convention date]. Induction furnaces. - The crucible 1 is concentrically surrounded by annular laminations 2 in which is arranged a polyphase winding 3. The charge is heated by the eddy currents produced therein and is stirred by the rotating electromagnetic field. The field may be controlled by varying the amplitude of the currents, or the phase angles, or by changing the connections to the windings. The winding may comprise a tubular conductor arranged in grooves in the laminations and insulated from them by mica. A cooling fluid may be passed through the tube. Additional cooling channels may be provided in the laminations.
Patent GB-737645-A (GB)
Title: Improvements in or relating to polysulfone resins
IPC: C08K5/37
Filed: 1953-11-20
Abstract: Polysulphone resins are rendered thermally stable by incorporation of a benzimidazolethiol of formula <FORM:0737645/IV (a)/1> wherein the X's are hydrogen, chlorine, bromine or alkyl groups containing a total of not more than 10 carbon atoms.  The polysulphone may be derived from 1-butene, 2-butene, isobutylene, amylenes, 1-pentene, hexenes, cyclo-hexenes, heptenes, cyclo-heptenes, octenes, cyclo-octenes, nonenes, decene, undecene, dodecene, p-bromoallylbenzene, butadiene, pentadiene, hexadiene, cyclohexadiene, isoprene, allyl or undecylenyl alcohol, vinyl acetate, allyl ethyl ether, methyl undecylenate, undecylenic acid, acrylonitrile, ethyl acrylate, o-allylphenol, o-allylanisole, acetylenes and mixtures, and may be prepared as described in Specification 686,446. compositions may be obtained by adding a solution, e.g. in methanol, benzene or ethanol, of the stabilizer, of which a list is given, to the dry powdered resin and then evaporating the solvent, or the finely-divided agent may be added to the acid latex in which the resin has been prepared, or an aqueous dispersion of the stabilizer may be added to a neutral latex and the dispersions subsequently coagulated.
Patent GB-691361-A (GB)
Title: Guard for coal cutting machines
Inventor: ORMISTON HARRY
IPC: E21C35/04
Filed: 1949-12-15
Abstract: 691,361. Mining-machine guards. MUSCHAMP & CO., Ltd., N. J. Dec. 15, 1950 [Dec. 15, 1949], No. 32254/49. Class 68(i) [Also in Group XXIV] A guard for the cutting chain on the jib of a mining - machine is so pivotally mounted on said jib that on entry of the,jib into the face the guard abuts against the face and relative movement occurs between the jib and the guard, the guard being swung clear of the jib and removed. The guard 1, which may be made of sheet metal or expanded wire and welded bar, is shaped in plan approximately the same as one longitudinal half of the jib with a depending vertical wall. Preferably it is sector-shaped, being rounded at the end remote from the apex by which it is pivotally secured between lugs on a bracket that may be permanently or releasably secured to the jib frame which is rotated about the pivot 12a by pulling on a rope attached to the bracket 9. Co-operating abutments on the guard and bracket limit the rotational movement of the guard. When the bracket is releasable, it is secured to the jib when a force is exerted in one direction by its configuration and a peg 17 engaging in an open-ended slot 18 formed in the jib structure.
Patent GB-840263-A (GB)
Title: Four-wheeled drive vehicles
IPC: B62D53/02
Filed: 1957-10-16
Abstract: 840,263. Articulated vehicles. BROWN, D. J. B., and HUNSLET ENGINE CO. Ltd. Oct. 13, 1958 [Oct. 16, 1957], No. 32306/57. Class 79(3). A four-wheeled drive vehicle comprises a pair of units 4, 5 each including an axle 6 carrying a pair of driving wheels 8 and an engine 10 for driving the wheels, means pivotally inter-connecting the units about a normally vertical axis equi-spaced from the middles of the two axles, and means 17 for imparting relative angular movement to the two units to steer the vehicle. A rectangular frame 12 braced in an upright position on the unit 5 by stays 13 is pivotally mounted between the ends of a yoke 14 connected to the unit 4 by a horizontal shaft 15. The means 17 consists of a doubleacting hydraulic ram connected between the yoke 14 and a pivot at one side of the frame 12. Each unit includes a clutch 11 and a gear box 9 which may alternatively be mounted in line with the engine 10. The unit 5 may be controlled hydraulically from the unit 4.
Patent GB-650211-A (GB)
Title: Improvements in or relating to refrigeration apparatus
IPC: F25D23/00
Filed: 1948-12-14
Abstract: 650,211. Machinery supports. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Dec. 14, 1948, No. 32309. Convention date, Jan. 6. '[Class 80(iv)] [Also in Group XIII] The motor and compressor unit 20 of a refrigeration apparatus is resiliently supported by two springs 52 attached to brackets 54 on each side of the unit casing which take substantially the whole of the weight. Movement in a horizontal plane is resiliently restrained by rubber plugs 68 engaging the brackets 54 and further rubber bumper means 62 are provided to allow a limited free movement of the unit, by means of pins 58 secured to the brackets 54, and to give a resilient resistance beyond such movement. Specification 554,885 is referred to.
Patent GB-1312144-A (GB)
Title: Semiconductor devices
IPC: H01L47/02
Filed: 1970-07-03
Abstract: 1312144 Semi-conductor devices FUJITSU Ltd 3 July 1970 [3 July 1969] 32485/70 Heading H1K A semi-conductor element is bonded in electrically and thermally conductive manner to one face of a heat sink, the interface between the element and the heat sink having at least one elongate part which has a rounded end and which is at least twice as long as its greatest width. The semi-conductor element may be an IMPATT diode, a Gunn diode, or a varactor diode. The conducting heat sink has a thickness, and its face on which the junction is formed has a diameter of more than five times the width of the semi-conductor element. The configuration of the junction may be an ellipse or a rounded-cornered rectangle.
Patent GB-338701-A (GB)
Title: Water closet pan
IPC: E03D11/02
Filed: 1929-10-28
Abstract: 338,701. Keramag Keramische Werke Akt.-Ges. May 11, 1929, [Convention date]. No Patent granted (Sealing fee not paid). Closet basins and pans have a bottom c slightly inclined towards the inlet of a siphon discharge channel b passing under the bottom and constructed as described in Specification 335,392.
Patent GB-656000-A (GB)
Title: Improvements in or relating to process for recovering glutamic acid and the glutamicacid resulting from said process
IPC: C10L5/06
Filed: 1948-12-17
Abstract: Organic impurities contaminating glutamic acid produced by alkaline hydrolysis of Steffen's filtrate or present in the hydrolyzate are precipitated in the presence of tannin, including impure tannic acid or crude tannins, phlobotannins, gallotannic acid, digallic acid, tannin extracts, synthetic tannins, e.g. mono- and poly-galloylglucose, and any substance which will introduce tannins under the conditions obtaining.  The amount of tannin is not more than 10, usually 0.03-5 per cent by weight of the filtrate treated. Conditions may be acidic, neutral or basic but preferably the pH is about 5-7.  Temperature may be up to about 75 DEG  but is preferably about 20-35 DEG  C., and the time of contact with the tannin is, for example, from about 5 minutes to 24 hours, generally 3-17 hours. Dilute solutions of hydrolyzate or solutions concentrated to 20-60 per cent by weight of dry substance, for example, may be treated. The tannin may be added to Steffen's filtrate prior to hydrolysis, to the hydrolyzate subsequent to the alkaline hydrolysis or to glutamic acid liquors resulting from the neutralization or acidification of the hydrolyzate.  The hydrolysis is effected with basic inorganic oxygen-containing compounds, e.g. hydroxides, carbonates, and bicarbonates of sodium, potassium, and calcium, and ammonium hydroxide, usually in an amount of not more than 10 per cent by weight, at a temperature not above about 90 DEG  C.  Inorganic or organic acid may be used to adjust the pH to the preferred value of 5-7 or an acid hydrolyzate of Steffen's filtrate may be employed, when the tannin precipitates the impurities from both hydrolyzates. Glutamic acid recovered from an alkaline hydrolyzate may be dissolved in a solution containing slightly less than the equivalent of basic compound and the tannin added. After removal of the impurities, the solution may be evaporated to the point of incipient crystallization and inorganic salts separated prior to adjustment of the pH to recover glutamic acid. Glutamic acid may be recovered from Steffen's filtrate which has been alkali hydrolysed and tannin treated by adsorption on a cation exchange resin.
Patent GB-1016541-A (GB)
Title: Manufacture of bipyridyls
Inventor: CAMPBELL ALASTAIR
IPC: C07D213/22
Filed: 1961-09-12
Abstract: Bipyridyls are produced by interacting pyridine or pyridine having one or more hydrocarbon groups as substituents and aluminium and oxidizing the interaction product so formed. The reaction between the pyridine and aluminium may be initiated, for example, by mercury and its compounds, alkali metals, alkaline earth metals and halogens, and may be carried out in the presence of a diluent.  The oxidation may be carried out by oxygen, an oxygen-containing gas, chlorine, hypochlorites, nitric acid or a water-soluble inorganic peroxy compound and is preferably carried out in the presence of a diluent, e.g. water, an alcohol or a hydrocarbon.
Patent GB-837307-A (GB)
Title: Process and apparatus for gasifying finely divided fuels
IPC: C10J3/46
Filed: 1956-10-26
Abstract: 837,307. Boilers combined with fuel gasifying apparatus. KOPPERS G.m.b.H., H. Oct. 26, 1956 [Nov. 16, 1955], No. 32744/56. Class 123(2) [Also in Group XII] In a process in which finely divided fuels in suspension with oxygen and steam are gasified in a chamber 1, the useful gases containing solid gasification residues in suspension are passed through a radiation boiler 5 and then subjected to a final gasification by a strong whirling motion and a single or repeated compression and expansion with simultaneous lowering of temperature before entering a fire tube boiler 21. The gas outlet opening 3 of chamber 1 is formed by a water-cooled double jacket 4. The radiation boiler 5, which consists of a vertical double jacket 6 in which steam of moderate pressure is generated, is connected at its top to a tubular duct 9 which as shown is in two parts 10, 11. The wall of duct 9 is formed as a double jacket 13 for the generation of low pressure steam, and funnel-shaped deflecting elements 16, 17 enter the duct 9 to produce the whirling motion in the gases. Dust is collected at the outlets 18, 19. Before entering the fire tube boiler 21, which generates high pressure .steam, the gases pass a steam superheater 20. The duct 9 is supported at its ends directly on the boilers 5, 21, and has additional support by resting at 28, 29, on beams 25 which have their ends movably supported on the boilers 5, 21, at 26, 27 respectively.
Patent GB-1066957-A (GB)
Title: A method of manufacturing corrugated metal panels
Inventor: DENIS JEAN
IPC: B21D47/00
Filed: 1964-08-11
Abstract: 1,066,957. Making corrugated panels; tube expanders. NORD - AVIATION SOCIETE NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. Aug. 11, 1964 [Oct. 17, 1963], No. 32772/64. Headings B3A and B3J. Corrugated sheets, particularly for the manufacture of sandwich panels, are made from flat sheets 1, 2 welded along parallel pairs of seams and a mandrel 14 is drawn by means of a cable 15 between rows of welds to form the corrugations. The welds may be made by a pair of wheels (3), (4) on a common shaft (Fig. 1, not shown) and the pairs of welds produced thereby are not necessarily parallel with adjacent pairs to permit shaping of the completed sheets. Alternatively the spacing between the weld lines may be slightly tapered to make conical panels. The final shaping of the corrugations may be achieved by passing the sheets through rolls 16, 16<SP>1</SP>.
Patent GB-245169-A (GB)
Title: Improvements in winding devices for springs
IPC: G04C1/06
Filed: 1925-12-29
Abstract: 245,169. Mombur, G. Dec. 29, 1924, [Convention date]. Winding-apparatus.- An automatic winding device for the driving- spring of a clock or similar apparatus comprises an escapement device which controls electric contacts which in turn control an electro-magnet actuating a driving pawl which winds up the clock spring slightly more than the spring is unwound in driving the clock. The inner end of the spring is fixed to the arbor d<1> and makes one revolution per hour whereas the spring barrel d has less than sixty teeth d<11> on it circumference, whereby the spring in one hour is over-wound. A star wheel o<11> of eight teeth moves one tooth per minute and rock a pawl n pivoted at m to the armature b of the magnet u so that the other end p of this pawl knocks up a loosely mounted finger h from an insulating surface l on to a conducting surface k on a friction device i rotating on an insulated pivot j. This closes the magnet circuit and the armature b rotates clockwise driving the driving pawl a, pivoted at e to the armature, back over one tooth on the ratchet d<11>. At the end of the rotation a pin z on the armature knocks the finger h back on to the insulating surface l, breaking the magnet circuit. The armature b thereupon kicks back anti-clockwise and the pawl a, through its spring c, drives the spring barrel one tooth. f is a holding detent for the barrel and is pivoted at b<1>. As the armature rotates clockwise the pawl n is drawn out of the teeth of the star wheel against a stop q and then subsequently returned to engage the next tooth. If the clock spring is run down the force of the spring c causes the armature in moving anticlockwise to overcome a spring r so that the end p of the pawl n travels far enough to knock up the finger h and initiate another drive.
Patent GB-392940-A (GB)
Title: Improvements in loft ladders and the like
IPC: E04F11/06
Filed: 1931-11-26
Abstract: 392,940. Loft ladders. LOFT LADDERS, Ltd., Broadway Works, Bromley, Kent, and GORHAM, P. H., 5, King William Street, Greenwich, London. Nov. 26,1931, No. 32831. [Class 20 (ii).] Relates to counterbalancing means for loft ladders of the kind which are adapted to be raised and to be stored within the loft when not in use. According to the invention, the ladder is combined with a spring or a series of springs adapted for linear stress movements. The raising and lowering of the ladder may involve the movement of the ladder as a rigid whole, or the ladder may comprise a number of telescopic or sliding sections, or it may be of the lazytongs type. In the form shown, the ladder 1, Fig. 1, comprises two sliding sections, the upper section of which is connected to the loft floor by pivoted rods 3. A tube 5, Fig. 2, closed at one end by a plug 6 is arranged behind the ladder and to one side thereof and is connected to a tread 16 by an extension 15 of the plug. This tube houses a helical spring 8 which extends between the plug 6 and a movable plunger 9. A chain 7 is secured to the plunger and is led through the plug 6, around a pulley 12 and thence to an anchoring point 17 on the loft floor adjacent the loft opening 2. The pulley 12 is mounted upon a bracket 13 which is secured to the tube 5. In operation the spring is compressed by the pull on the chain 7 when the ladder is lowered and the gravity forces acting on the ladder are thereby counterbalanced. The side rails of the ladder are guided in known manner between rollers and flanged plates pivoted coaxially with the rollers. The loft opening 2 is closed by an automatically latched trap-door 4 which is connected to the upper section of the ladder. In a modification, two chains 7 are anchored one to each of the side rails of the upper section and are connected to linear springs in two tubes which are secured to the loft floor. The lower sliding section of the ladder is independently balanced by similar means, the tubes being secured to the side rails of the upper section and the chains being anchored to the lower section.
Patent GB-256463-A (GB)
Title: Improvements in stuffing boxes
IPC: F16J15/18
Filed: 1925-12-30
Abstract: 256,463. Steen, R., and Brown, R. Dec. 30,1925. Bushes; packing. non-metallic. - In a stuffing-box of the type in which the packing is forced into a conical bush 10, perforations 11 are formed in the bush to permit access of the steam or other fluid to the packing from a recess 7. Grooves 13 are formed in the bush or in the neck-ring to permit access of the fluid to the recess. The bush may be formed integral with the neck-ring, in which case the grooves 13. are replaced by perforations.
Patent GB-486313-A (GB)
Title: Improvements in or relating to wash-hand basins
IPC: A47G1/08
Filed: 1936-12-01
Abstract: 486,313. Lavatory basins. COCKBURN & CO., Ltd., M., and BROWN, J. Dec. 1, 1936, No. 32985. [Class 26] A wash-hand basin particularly one of por celain - enamelled cast iron, is provided with a detachable shelf sup ported by a wall on the back of the basin anc by a part of the back wall projecting later ally of the wall and with means for fastening the shelf to the basin. The basin is formed with a ledge 11, Figs. 1 and 3, hollowed to form a soap-tray 12, and with a rear wall 15, formed into a central buttress 16, and provided with turned-over top edges 18 extending from each side to a point just above the soap tray 12. Between the edges 18 lies the shelf 19, engaging three projections 22, 23, 22 on the wall 15 and buttress 16, and provided with locating projections 28, 29 to lie against the projections 22, 23. The shelf is formed with a rim 20 and draining passage 21. It is held in position by a nut and a square headed screw 26, engaging a slotted U-shaped lug 25 on the shelf and passing through a lug 24 on the basin.
Patent GB-451997-A (GB)
Title: Improvements in two-stroke internal-combustion engines operating with injection of liquid fuel
IPC: F02B75/02
Filed: 1935-11-29
Abstract: 451,997. Oil engines; valve mechanism; cylinders &c. KNUDSEN, C. H., 325, 60th Street, Brooklyn, New York, U.S.A. Nov. 29, 1935, No. 33197. Convention date, May 18. [Classes 7 (ii), 7 (iii), and 7 (vi)] In a two-stroke oil engine provided with piston - controlled exhaust ports 15 and scavenging ports 16, the former are further controlled by a ring valve 22 which closes the exhaust before the scavenging ports are closed by the piston. Fig. 1 shows an engine with two rows of radial cylinders with the valves 22 actuated by a pair of cams 25, 25a on the crank-shaft, and rods 26 sliding in guides and connected to rocker arms 30 fitted at their pivots 29 with torsional springs for returning the valves. Each cylinder is composed of a crank-case portion 10 enlarged and threaded at 12 to receive an outer portion 13 having a combustion chamber 14a shaped as shown. The cylinders are provided with air jackets 19 formed with cooling-fins. Fig. 5 shows an opposed-cylinder engine of similar construction, the ring valves 39 being actuated by spring-pressed rods 40 bearing on rockers 44 engaging cams 47. The crank-case portion is closed by plates 54, 54a, and the scavenging chambers are formed by plates 53, 53<a>. This type of engine may be used in the wing structures of aeroplanes.
Patent GB-190897-A (GB)
Title: Improvements in or relating to vacuum jacketed containers for liquefied gases
IPC: F17C3/08
Filed: 1921-12-12
Abstract: 190,897. Sprengluft Ges., and Schmatz, H. Dec. 12, 1921. Cold and heat retaining vessels.-A movable heat-conducting member, such as an aluminium ball c, is located within the vacuum jacket space of metal containers for liquefied gases, whereby when the vessel is tilted to discharge the contents the member establishes heat-conducting connection between the two walls to equalize the internal and external temperatures. The size of the ball or like member is such that it does not establish connection until the container is tilted beyond the horizontal, so as to avoid damage to the thin inner wall by pressure on the ball due to the weight of the contents. The neck of the container may be short and of the shape shown, and the joint between the two walls at the mouth is substantially rigid.