baber/WOPTO huggingface dataset:
Patent GB-814387-A (GB)
Title: Improvements in rubber torsional shear springs
Inventor: MOULTON ALEXANDER ERIC
IPC: B60G5/04
Filed: 1953-07-17
Abstract: 814,387. Rubber torsion springs; roadvehicle spring suspensions. SPENCER MOULTON & CO. Ltd., G. Sept. 19, 1955 [July 17, 1953], No. 19911/53. Classes 108(2) and 108(3) In a rubber torsional shear spring (Figs. 3, 5) having an inner metal shaft 12 and a thin discontinuous shell 13 between which a body of rubber is constrained so that when one is twisted in relation to the other, the rubber is stressed in torsional shear, the inner shaft 12 and/or the outer shell 13 is of tapering or frustoconical form. As applied to the spring suspension of a road vehicle bogie (Fig. 7), two torsion spring units according to the invention, are carried by a transverse member 36 rigid with the vehicle frame. The spring unit comprises inner and outer frusto-conical tubular members 50, and 45, between which is bonded a rubber sleeve 51. An arm 42 is secured by bolts 47 to a flange rigid with the inner tubular member 50, and carries a member 52 which is in bearing relation with a bearing bush 53 carried by a member 36. The other end of the tubular member 50 carries a bush 54 which is also in bearing relation with the member 36. The arm 42 is connected to one end of one of the bogie axles 35, and the corresponding end of the other axle 34 is connected by an arm 40 to a flange rigid with the outer tubular member 45. The other spring unit 55 is of identical construction to the unit 45, and is connected in the same way to the other ends of the axles 34, and 35. Further transverse location of the axles 34, and 35 is provided by diagonally disposed stays 60, and 61. In the spring unit shown in Figs. 3 and 5, the outer member is of trough shape in cross-section. The mouth of the trough is closed by a plate 26 which bears against the rubber and against the member to which the trough-shaped member 13 is bolted. At one end 27 the inner member has a cylindrical portion. A portion of the trough-shaped member 13 at the other end of the unit is also of non- tapered form. The invention is also described as applied to a simple swinging- arm road-vehicle suspension (Figs. 1 and 2, not shown). Specification 676,098, 676,190 and 743,796 [Group XL(a)] are referred to.
Patent GB-184678-A (GB)
Title: Improvements in aeronautical screw or like propellers
IPC: B64C27/32
Filed: 1921-07-26
Abstract: 184,678. Davis, R. W. July 26, 1921. Screw propellers. - An air screw comprises blades formed by a textile or metal covering mounted on ribs on arms of which one set project radially from the shaft and another set are tangential and offset from the shaft, the arms being stayed by guys. The arms and shaft are hollow and receive the exhaust gases from the engine. The hollow shaft 1 carries a small hub 11 with sockets for the hollow radial arms 27 and a larger hub 10 with outstanding tangential sockets 15 for the hollow tangential arms 20. Attached to the arms by wire lacing 40 or rivets 41, are concentric I-sectioned aluminium or wood ribs 33, 33<a>, 33b, 33<c>, the webs being perforated, except the inner ones 33, and joined by leading and trailing edge strips 36, 36a. The outer surfaces 37 are of textile material or metal, and, in a modification, one surface only is fitted. The hollow arms have openings 38 whereby the exhaust gases pass into the hollow blade and from which they issue through perforations 39 on the bottom flange of the outer rib. From a ring 42 with lugs 43 extend guys 44, 45 out to lugs 46, 47 on the radial arms. Other guys 48 extend from the lugs 47 to the sockets 15. The exhaust gases may enter the hollow shaft 1 longitudinally, or radially from a sleeve 52.
Patent GB-1097060-A (GB)
Title: N-dichloroacetyl-ª‰-(ªÐ-fluorophenyl)-alanine and process for preparing it
IPC: C07C233/45
Filed: 1966-05-06
Abstract: The invention comprises N-dichloroacetyl-b -(p-fluorophenyl)-alanine, its salts, and its preparation by (a) N-acylation or (b) hydrolysis of a compound of formula <FORM:1097060/C2/1> wherein R1 is a hydrogen atom, or a nitrile or carbalkoxy group, followed where appropriate by decarboxylation.  The compounds of the invention inhibit the formation of antibodies against microbial antigens.
Patent GB-187725-A (GB)
Title: Improvements in ground augers
IPC: E21B10/44
Filed: 1921-07-27
Abstract: 187,725. Wahrenburg, F., and Schweisgut, O. July 27, 1921. Ground augers.-In a ground auger with a single high-pitched boring plate a and a curved flap d hinged to the plate to close the passage when the tool is lifted, the flap is hinged by a single eye e so as to be movable in all directions.
Patent GB-1494844-A (GB)
Title: Fluid control circuits
IPC: F15B11/17
Filed: 1975-05-13
Abstract: 1494844 Hydraulic control circuits POCLAIN 13 May 1975 [16 May 1974] 20153/75 Heading F1P In the circuit shown, Fig. 1, when a ram 8 is lightly loaded, pressure in a line 7 is too low to  open a valve 25 so a valve 18 is moved by a spring 23 to the position shown in which a line 19 is interrupted, consequently the output of both pumps 1, 2 flows to the ram 8. If the loading on the ram increases, the valve 25 opens and liquid is admitted to chambers 21, 22 of the valve 18 so that it is moved against the spring 23 and the line 19 is  opened to connect the pump 2 to a tank 3. Thus, the ram 8 is supplied only by pump 1 but at a highpressure. Fig. 2 (not shown), illustrates a modification in which an additional valve 32, which is manually operable, enables the chamber 22 to be pressurized by the pump 1 so that the output of pump 2 returns to the tank 3. Fig. 3 shows an embodiment in which the valve 25 may be additionally controlled by the pressure in a line 40 from a pump 37.
Patent GB-1076557-A (GB)
Title: Improvements in data transmission apparatus
Inventor: GOROG ETIENNE
IPC: H04L7/027
Filed: 1965-05-13
Abstract: 1,076,557. Data transmission. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 13, 1965 [May 13, 1964], No. 20167/65. Heading H4P. In a data transmission system equal-length blocks of data are recoded into blocks of like length, each recoded block having one half of it the inverse of the other half, and all blocks having the same fundamental frequency. Four-bit blocks a, b, c, d, Fig. 6 (not shown), are used in the embodiment described, and are converted to four-level four-bit length blocks +A, +B, -A, -B, the conversion being A = 2a+b, B = 2c+d, where a . . . d are + 1v for binary 1 and - 1v for binary 0. The receiver includes means, not described, for recoding the four-level data to the original binary form, and also means for synchronizing sampling means which operates during only two of the four bit-periods in a received block. It is a characteristic of the received data that the signal level has values only of Œ3nV or Œ1nV, and has no D.C. component. Synchronization may be by way of the data itself or by use of a periodic sync. signal. The circuits for both systems are described.
Patent GB-1092063-A (GB)
Title: Preparation of 5:6-dicyano-benzimidazole derivatives
IPC: C07D235/08
Filed: 1965-05-13
Abstract: Cyanine dyes are prepared from a quaternary salt of formula <FORM:1092063/C4-C5/1> where R1 is alkyl, substituted alkyl (e.g. allyl, benzyl or substituted benzyl), aryl or substituted aryl, R2 is a substituent known in cyanine dye chemistry, such as alkyl, substituted alkyl (e.g. sulphobutyl or allyl), aryl (e.g. phenyl) or substituted aryl (e.g. carboxyphenyl) and X is an acid radical known in cyanine dye chemistry. Examples illustrate dyes of the formulae <FORM:1092063/C4-C5/2> <FORM:1092063/C4-C5/3> and <FORM:1092063/C4-C5/4>ALSO:The invention comprises compounds of the formula <FORM:1092063/C2/1> where R1 is alkyl, substituted alkyl (e.g. allyl, benzyl or substituted benzyl), aryl or substituted aryl. These compounds may be produced by the reactions <FORM:1092063/C2/2> <FORM:1092063/C2/3> In examples R1 is ethyl, and all the intermediates (except the diazonium salt) are isolated. The compounds of the invention may be quaternized, and the quaternary salts are used for preparing dyes (see Division G2).
Patent GB-974338-A (GB)
Title: Apparatus suitable for forming holes electrolytically in a metallic workpiece
Inventor: HALLSWORTH RAYMOND THOMAS
IPC: B23H3/04
Filed: 1961-06-05
Abstract: A hole is formed electrolytically with or without arcing in an anodic workpiece 33, such as a turbine or compressor blade, by advancing the workpiece 33, mounted in a holder 35, 36 37, at a predetermined rate towards a hollow cathode electrode 55 through which electrolyte is supplied and, at the same time, rotating the workpiece relative to the cathode by means of a projection 41 engaging a groove 40 in a cylindrical portion 37 of the advancing workpiece holder 35, 36, 37. The electrode 55 shown in Fig. 1 has an insulating outer coating and terminates in an enlarged uninsulated working tip 70 which forms a hole of elliptical cross-section. Rotation of the workpiece causes the ellipse axes to rotate as the depth of the hole increases. Alternatively, an electrode as shown in Fig. 3 may be used which forms a circular hole.  The workpiece holder 35, 36, 37 is <PICT:0974338/C6-C7/1> mounted in a carriage 9 movable over guide shafts 10, 11 by means of a motor 23 acting through a shaft 22.  An arm 35, forming part of the workpiece holder, has an aperture 59 which makes a press fit over a boss 58 which slidably surrounds the cathode 55.  The electrolyte is circulated by pumps 65, 68, is filtered at 69 and, to prevent its conductivity from varying, its temperature is maintained constant by a thermostatically controlled electric heater 66a.  A relay in the circuitry switches off the electrolysing current if the electrode should contact the workpiece. Upward movement of the carriage 9 is limited by a stop 50.  The electrode shown in Fig. 3, for forming holes which are circular in cross-section, comprises a hollow stainless steel stem 81, which is insulated at 84 with a phenolic epoxy resin, and at 86 with a polyvinyl chloride coating on top of a primer 85 and has an uninsulated working tip 83.  An electrode may be reciprocated rapidly to cause intermittent arcing between itself and the work. Further, an electrode for forming circular holes can be rotated. Electrolysing conditions referred to are an electrolyte of brine of specific gravity 1.172 at 140  DEG F. and at 100 p.s.i. for holes over 0.70 inch diameter and at 300 p.s.i. for holes of less than 0.070 inch and a voltage of 4 to 30. Alternatively Na2SO4 with or without 5% borax may be used.
Patent GB-706894-A (GB)
Title: Improvements in or relating to loose letter sign boards
IPC: G09F7/08
Filed: 1952-08-12
Abstract: 706,894. Signs. HYVONEN, A. I. Aug. 12, 1952 [Aug. 20, 1951], No. 20266/52. Class 3(2) In a signboard composed of an assembly of slats, 1 laid edge to edge and connected together at their rear by flexible material such as 6, so that the signboard as a whole can be bent backwards to separate the fronts of the slats, thereby producing a series of gaps into which separate letters 5 or other characters or equivalent can be inserted, the board subsequently being restored to a flat condition causing the gaps to close so that the slats firmly grip the character or equivalent, a spring 4 is secured to the back of the board and acts resiliently on the slats to urge them towards their closed position. Two strips of flexible material are used, these being connected to all the slats and arranged one on each side of the board. The characters 5 each have a rearwardly projecting tooth which is gripped between the slats. The spring 4 is screwed to the centre slat and to battens 8, 9 on the top and bottom slats, so that it is slightly bowed to hold the slats together. The slats may be illuminated from the front if opaque or if translucent from the rear. In the latter case two springs 4, one at each side, may be used.
Patent GB-1511762-A (GB)
Title: Pressure level fuel control valve
IPC: F02M37/00
Filed: 1976-05-17
Abstract: 1511762 Fuel pressure control valve CUMMINS ENG CO Inc 17 May 1976 [19 May 1975] 20289/76 Heading F2V [Also in Division F1] A fuel pressure control valve 40, has a valve member 62 formed with a stepped surface such that the fuel pressure in passage 50 required to open the valve is greater than that required to maintain the valve open, the ratio of piston areas for the closed position to the open position being, for example, 1 to 4. The valve acts to bypass the injectors 36, replaceable orifices 58 controlling the amount of pressure reduction allowed by the valve. The valve bias spring 66 is adjustable by means of a plug 70 having an elastomeric locking pad 72. A conical elastomeric tip 64 seals the opening of the inlet passage 50.
Patent GB-183831-A (GB)
IPC: B01F23/10
Filed: 1922-07-25
Abstract: 183,831. Mangiameli, F. July 25, 1921,. [Convention date]. Compressed air and gas engines. - An engine driven by compressed oxygen comprises a cylindrical rotating body 23 provided with transverse cylindrical bores 26, 27, in which reciprocate pistons 1 rotating on fixed cranks 2. The pistons &c. are lubricated through central passages 32, 33 and the gas is admitted and exhausted through passages 4, 5.
Patent GB-997580-A (GB)
Title: Thin film transformer
IPC: G11C11/44
Filed: 1963-05-22
Abstract: 997,580. Transformers. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 22, 1963 [May 25, 1962], No. 20318/63. Heading H1T. A thin film transformer having a turns ratio different from unit has primary and secondary conductors each in the form of a thin film of material which becomes superconductive when cooled sufficiently. A super conductive shield adjacent the windings is cut away at the positions where the primary and secondary conductors are to be inductively coupled or is shifted out of the super conductive state by the joint effect of a current in a biasing winding and the primary current. Fig. 4 shows an exploded perspective view with the primary 31, comprising series connected conductors 13, 23, 33, 43, removed from its position with its conductors superimposed on the conductors 14, 24, 34, 44 of the two part secondary 32. The lower level secondary conductors 14 and 34 are connected to the secondary output conductors 4, 5, by cross-over conductors 68, 69. A superconductive layer 34 is disposed as shown on the glass or quartz substrate 33. The primary, secondary and shield may be of a-hard superconductive material such as lead. In a modification (Figs. 6), the superconductive shield 108 covers the entire aluminium substrate 133 and is separated from the superposed primary and secondary conductors 110, 120, 130, 140 by a switching member 107 consisting of a sheet of soft superconducting material such as indium. A biasing conductor 111 is superposed on the associated primary and secondary conductors and is fed with a steady current generating a field just insufficient to bring the adjacent portions of the switching member 107 from the superconducting to the resistive state. This transition is effected by the passage of a current in the primary conductors, the flux change producing the output in the secondary conductors then being produced partly by the current variation in the primary and partly due to the change in inductance caused by the transition of the associated portions of switching member 107 from superconductive to resistive state. A short primary pulse can thus produce a long secondary pulse and the length of the latter can be increased by increasing the thickness of the switching element 107. Specifications 987,476 is referred to.
Patent GB-583344-A (GB)
Title: Process for the production of lactones
IPC: B01J23/86
Filed: 1944-10-20
Abstract: Lactones are prepared by heating with a dehydrogenation catalyst an aliphatic dihydric alcohol containing at least one primary alcohol group and in which the hydroxyl groups are separated by four or five carbon atoms.  Catalysts, which must not be dehydration catalysts, include copper or silver which may be supported on zinc oxide, magnesia, kieselguhr, pumice or diatomaceous earth, or copper or silver chromites may be used.  In the examples: (1) d -valerolactone is prepared by passing 1 : 5-pentane diol over a copper chromite or a copper/zinc oxide catalyst; (2) g -butyrolactone is prepared by passing 1 : 4-butane diol over a copper/zinc oxide catalyst.
Patent GB-174566-A (GB)
Title: Improvements relating to casting metal tubing
IPC: B22D13/10
Filed: 1921-07-29
Abstract: 174,566. Cammen, L. Jan. 24, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Casting - machines; c a s t i n g processes; moulds: mould materials; electricity, heating by.-In a centrifugal casting of tubes of metal, such as the alloy known under the Trade Mark " Monal," the mould or the metal or both are heated electrically. The current is passed through a lining 1 of graphite, which is insulated electrically and thermally from the metal casing 3 by an intermediate body 2. The current may be applied by heavy copper or steel rings, water-cooled if desired, or by carbon discs 9, 10 which also engage and melt the charge introduced in the form of a rod 12. The mould is rotated slowly by a pulley 13 until the rod 12 melts to avoid uneven heating and cracking of the lining. Reference has been directed by the Comptroller to Specification 5134/07.
Patent GB-942645-A (GB)
Title: Method of hydrogenating alpha-methylstyrene to cumene
IPC: C07C5/03
Filed: 1962-05-28
Abstract: Cumene is obtained by hydrogenating alphamethylstyrene in the presence of palladium supported on granulated active carbon.  The process is particularly suitable for removing small amounts of alpha-methylstyrene from the mixture thereof with cumene obtained as by-products in the decomposition of cumene hydroperoxide. The hydrogenation is effected in the liquid phase at 20-200 DEG  C. and 1-10 atmospheres using excess hydrogen and a catalyst containing 1-5% of palladium.  In a preferred embodiment the catalyst is arranged in a plurality of beds of increasing depth with respect to flow of reactants and cumene is added to the reactants between the beds to remove the heat of reaction.  Unused hydrogen is recirculated.
Patent GB-1024976-A (GB)
Title: Generator of mechanical vibrations
Inventor: WILKINSON KENNETH JAMES RAWCLI
IPC: B06B1/18
Filed: 1962-05-28
Abstract: 1,024,976. Vibratory mechanisms. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 1, 1963 [May 28, 1962], No. 20451/62. Heading F2X.  A vibrator comprises a ball 28, or roller, impelled round a circular track 5 by gas discharged from nozzles 25 within the ball orbit. Compressed gas is supplied to nozzles 25 through a blind ended pipe stub 21 rigid with a cover-plate having discharge ports therein (Fig. 1, not shown), the nozzles 25 being between two flanges 23 on the pipe 21 which retain the ball 28 in the track when the vibrator is inoper-, ative. The magnitude and frequency of the vibration may be determined from a strain gauge 9 mounted in the body 1, a fuller indication being provided by using a second strain gauge 90 degrees round the track axis.
Patent GB-1031834-A (GB)
Title: Improvements relating to tools for inserting and extracting circlips
IPC: B25B27/20
Filed: 1963-05-23
Abstract: 1,031,834. Pliers. R. D. ICKE, and R. H. WOOLLARD. April 27, 1964 [May 23, 1963], No. 20534/63. Heading B4W. In outwardly expanding pliers for inserting or extracting circlips and comprising a pair of levers extending across one another in the region of the pivot and back again near the free end of the jaws, the latter are provided with bored bosses 13 adapted to receive prongs 17. The prongs are an interference fit in the bores and may be driven out from the opposite ends of the bores. An adjuster screw 15 limits the position of the jaws when the handles are moved.
Patent GB-1323401-A (GB)
Title: Metal clad electric distributing and or switching plants for high voltage
IPC: H02G5/06
Filed: 1971-04-19
Abstract: 1323401 Conductors COQ NV 19 April 1971 [30 Jan 1970] 20544/71 Heading H1A [Also in Division H2] A power transmission line comprises a conductor spaced from a surrounding closed metal envelope 1 by insulators 5 arranged in groups spaced along the conductor. The insulators 5 in each group extend radially of the envelope axis and lie in a plane transverse thereof. Each insulator is rigidly attached to the conductor and envelope, the latter being resiliently deformed to longitudinally stress the insulators. As shown the conductor consists of two tubular elements 2, 2<SP>1</SP> connected by the web 3. Insulating rods 5 screw into nuts 4 which are welded to the web, extend through holes 6 in the envelope 1 and rings 7 which surround the holes, and are fixed in screw caps 8. The insulators may be bars or tubes made of synthetic substance reinforced with fibrous material. Methods of producing tensile or compressive stresses in the insulators are indicated in Figs. 6 and 7 (not shown).
Patent GB-320624-A (GB)
Title: Improvements in and relating to emergency supply arrangements for working plants supplied with electric energy
IPC: H02J9/08
Filed: 1928-07-16
Abstract: 320,624. Gerard, E. July 16, 1928 Systems depending on two or more machines; supplying consuming devices; starting prime movers.-A supply system comprises a fly-wheel driven by a motor capable of operating as a generator and means whereby upon failure of the supply the flywheel will, in addition to maintaining the electric supply, start an emergency engine. Fig. 1 shows a polyphase system 16 supplying power to essential services on a line 18. A motor 1 drives a flywheel 3 and preferably also non-essential power receiving devices 9. When the current from the system 16 falls a current return relay 10 opens switches 11 and 23, the latter de-energizing an electromagnetic device 22 whereby a belt 15, connecting the device 9 with the flywheel shaft, is placed on a loose pulley and a 'belt 6, running normally on a loose pulley, is placed on a pulley fast on the flywheel shaft. The belt 6 starts the engine which thereupon supplies energy for the load 18, which is meanwhile supplied by the flywheel. The field of the dynamoelectric machine is increased at the same time by a solenoid 14 in parallel with the relay 10. The invention may be applied to direct current systems, the motor being shunt or compound wound. Belt-tensioning devices may replace the belt-shifting devices and friction or other clutches may be used.
Patent GB-833908-A (GB)
Title: Novel acid hydrazides and a process for the manufacture of same
Filed: 1958-06-27
Abstract: The invention comprises compounds of the general formula <FORM:0833908/IV (b)/1> where R1 is a secondary or tertiary alkyl radical or a cycloalkyl radical containing not more than 6 carbon atoms in the nucleus and which may contain an alkyl substituent having up to 3 carbon atoms, and R2 represents an alicyclic hydrocarbon or saturated acyclic hydrocarbon radical, containing not more than 6 carbon atoms or an aralkyl radical, and salts thereof. The compounds may be prepared by condensing the appropriate acid or salt thereof or reactive derivative thereof with the appropriate substituted hydrazine, or by introducing the appropriate substituent into the hydrazide of the appropriate acid or by heating the appropriate substituted hydrazine salt of the appropriate acid to a high temperature, and if desired converting the product into a salt thereof. N,N1-disubstituted carbodi-imides may be used as condensing agents, and one particular aspect of the invention uses such in the condensation of <FORM:0833908/IV (b)/2> with R2-NH-NH2, the condensation product so formed being converted if desired into a salt.  Suitable reactive functional derivatives of the acid are esters, halides, amides and anhydrides, and when these are used in the condensation process the above mentioned condensing agent is not necessary. Substituents may be introduced into the hydrazide used as starting material, by reaction with the appropriate carbonyl compound and either reduction of the resulting hydrazone or reaction of same with the appropriate Grignard compound followed by hydrolysis.  Many examples are given.  Specification 795,674 is referred to.