baber/WOPTO huggingface dataset:
Patent GB-1378619-A (GB)
Title: Bridge balances
IPC: G01G1/24
Filed: 1973-04-12
Abstract: 1378619 Balance METTLER INSTRUMENTE AG 12 April 1973 [29 Sept 1972] 17754/73 Heading G1W A balance comprises a platform 5 supported by two load levers 8, 9, and a common connecting member Fig.2 (not shown) connecting the ends 14, 14' of the levers to a force transducer. The levers 8, 9 are of different lengths but have the same force transmission ratio. The force transducer may be an electromagnetic compensation type or a hydraulic type. In a modification Fig.3 (not shown) further levers are introduced between the common connecting member and the transducer to decrease the sensitivity of the balance.
Patent GB-972399-A (GB)
Title: Alkoxylated compositions
IPC: C08F8/30
Filed: 1962-05-09
Abstract: A plastic which is water-soluble, easily released from rigid non-porous surfaces and resistant to cracking at temperatures as low as -20 DEG F. comprises a blend of an alkoxylated polyvinyl alcohol, said alcohol having a viscosity of 40 to 75 cps measured in a 4% aqueous solution at 68 DEG F. and being derived from a polyvinyl acetate hydrolysed to a degree of at least 92%, and 2 to 10 parts by weight per 100 parts of polyvinyl alcohol represented in the alkoxylated polyvinyl alcohol of an alkoxylated alkyl or alkenyl monoamine said amine containing 12 to 20 carbon atoms, the alkylene oxide represented in said alkoxylated materials being a C2-4 alkylene oxide containing an oxirane group. The preferred alkylene oxide is ethylene oxide, but propylene oxide and 2,3-butylene oxide may also be used. Specified amines are dodecylamine, hexadecylamine, octadecylamine, octadecenylamine, linoleylamine and mixtures, e.g. of palmityl, oleyl and stearyl amines derived from soya bean oil. The alkoxylated amine is preferably mixed with the polyvinyl alcohol before alkoxylation thereof, said alkoxylation being subsequently effected in the presence of alkaline catalysts or preferably ammonia, alkylamines, arylamines or alkanolamines. Alternatively the polyvinyl alcohol and amine may be mixed and alkoxylated simultaneously. Alkoxylation may be effected in suspension in a non-solvent, e.g. hexane, heptane, octane, benzene, toluene or cyclohexane.  In examples (1) polyvinyl alcohol and ethoxylated octadecyl amine are ethoxylated in the presence of ammonium hydroxide, (3) the ethoxylated octadecylamine is replaced by octadecylamine, (4) the ammonium hydroxide is replaced by triethanolamine, (5) the ethylene oxide is replaced by propylene oxide and 2,3-n-butylene oxide, (6) the amine is replaced by the above listed alkyl and alkenyl amines, (7) a mixture of ammonium hydroxide and triethanolamine is used as catalyst and the reactants are suspended in hexane. The compositions may be cast into films and used for packaging detergents.
Patent GB-1414440-A (GB)
Title: Valve with lubricant seal
IPC: F16K5/06
Filed: 1974-04-24
Abstract: 1414440 Valves M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 24 April 1974 [24 May 1973] 17915/74 Heading F2V A seat ring 56 for a valve is urged towards the closure member 13 by a spring 64 and forms with the valve body 10 an annular space into which plastic sealant may be introduced through a fitting 67, the sealant being retained by a ribbon 68 bent into the form of a hoop. The sealant is conveyed by ducts 77 to a region 76 between nylon seals 72, 81 and a synthetic rubber seal 73 held in place by deformation of a lip 75 on the ring. Two seat rings may be provided. The closure member has recesses lined with sleeves of low-friction plastics material to engage trunnions. An operating shaft extends through one of the trunnions for engagement with the closure member.
Patent GB-829735-A (GB)
Title: Improvements in and relating to motor vehicle cowl ventilation systems
IPC: B60H1/28
Filed: 1958-06-05
Abstract: 829,735. Ventilating vehicles. FORD MOTOR CO. Ltd. June 5, 1958 [June 5, 1957], No. 18023/58. Class 137 A motor vehicle cowl ventilation system comprises a cowl panel 12 and a panel 26 joined to form a shell, an air intake opening 16 in the cowl and an air exhaust opening at each end of the shell, a curved air guide 39, 41 secured to the shell having a cross-section smaller centrally and larger adjacent each exhaust opening so that air enters through the intake 16 and circulates about the air guide 39, 41 towards the exhaust openings, and means in the panel 26 for draining moisture entering the intake 16. The cowl is forwardly of the windshield 11 and the air guide is in parts 39, 41 secured to the cowl by a flange 43 to define a chamber 47 receiving air spiraled outwardly through the exhaust holes so that moisture is thrown against the panel 26. The chamber 47 has a radial section decreasing outwardly from the centre and is substantially lower at the exhaust holes than centrally. An aperture 54 in each guide 39, 41 drains any moisture deposited into the panel 26 having an apertured nozzle 33. At each outer end the panel 26 is formed into a box-like section 38 to which is welded the base 42 of the air guide 39, 41 formed into an arcuate section 44 having a flange 49 which may be welded to the section 13. To the sections 38 and 42 is welded a water baffle plate 52 to cover the lower part of guide openings 53 (or for example, itmay be decreased in area compared to the air guide), whence the air is directed into a top chamber 58, through an aperture 59 into the air outlet vent 61 and exhausted by operating a damper valve, to enter the compartment directly through one aperture or through a heater and air conditioning conduit and another aperture or both ways.
Patent GB-1193807-A (GB)
Title: Improvements in or relating to Moulds
IPC: B29C33/20
Filed: 1969-04-09
Abstract: 1,193,807. Injection and compression mould opening and closing. SEMPERIT OSTERREICHISCH AMERIKANISCHE GUMMIWERKE A.G. 9 April, 1969 [10 April, 1968], No. 18061/69. Heading B5A. [Also in Division E2] A mould for injection or compression moulding is opened and closed by means of a doublearmed lever 6, (10) pivotally mounted on one mould part 2 with the arms of the lever on opposite sides of the mould part, each arm having two curved surfaces 7, 8 adapted to co-operate with a projection or projections 15, 17 on a second mould part 1, and one end of each curved surface being closer to the pivot of the lever than the other end, whereby pivotal movement of the lever (by means of a handle 14) opens or closes the mould. In a modification, Figs. 3, 4 (not shown) a single projection (23) on each side of one mould part co-operates with grooves (21, 22) in the lever arms (19, 20). Means such as recesses (24) in the grooves may be provided to hold the lever arms in mouldclamping position.
Patent GB-238071-A (GB)
Title: Improvements in or relating to means for transporting goods between two fixed points
IPC: B66F9/02
Filed: 1924-07-29
Abstract: 238,071. Large, A. G. July 29, 1924. Winch-actuated platform and inclined plane load-handling machines. - Goods are carried between two points, such as t'he quayside and a weighing machine, by means of a portable runway 2 provided with a wheeled carriage 14 for the goods and with a fixed platform 40 at one end. The carriage 14 runs under the platform so that the load is deposited automatically thereon. A curved portion 19 on the carriage engaging beneath a flap 41 pivoted on the platform end held downwards by springs. The runway comprises a braced rectangular framework of angle irons 2, 4, the lower members 4 forming rails for the wheels 15 of the carriage. The framework is supported on steering wheels near one end and on castors at the other, and may be inclined. When the span is great, intermediate supports are provided consisting of screw jacks 12. The carriage is hauled to and fro by a rope 18 passing round pulleys 8 at the ends of the runway, one of the pulleys being driven by an electric motor through a reversing clutch. The carriage is returned automatically after delivering its load on to the platform 40, the reversing clutch being thrown over by a lever 43 which is engaged by the carriage. A brake is applied automatically as the clutch passes through the neutral position.
Patent GB-1002734-A (GB)
Title: Coupling transistor
IPC: H01L21/00
Filed: 1962-05-11
Abstract: 1,002,734. Semi-conductor devices. TRW SEMICONDUCTORS Inc. May 11, 1962 [Sept. 8, 1961], No. 18126/62. Heading H1K. [Also in Division H3] A transistor switching circuit (see Division H3) uses a double emitter transistor (Figs. 5 and 6) comprising a high resistance silicon substrate 100 having diffused therein an N- type collector region 101. On to this is formed a P-type base region 103 and two emitter regions 110 and 111. The collector contact 120 is formed upon a layer of N plus material 102 while base and emitter contacts 122, 123 and 124 are also provided. The surface is covered with an oxide layer and the structure is surrounded by a P layer 130 (having no external connections) to reduce leakage current and this is surrounded by an N+ layer 131 again having no external connection but in contact with the substrate, to isolate the transistor from any adjacent circuit elements. An alternative similar arrangement (Fig. 11, not shown), differs mainly in that the low resistance collector connecting region (e.g. 102) is spaced from the base region by an extension of the base region to increase the collector to base breakdown voltage and the surrounding N+ region 131 is spaced from the surrounding P region 130 by an upward extension of the substrate.
Patent GB-110655-A (GB)
Title: Improvements in or relating to Flexible or Universal Couplings for Shafts.
Inventor: CALVERT HENRY
IPC: F16D3/54
Filed: 1916-12-18
Abstract: 110,655. Calvert, H. Dec. 18, 1916. Universal couplings. -In a universal coupling of the kind in which the ends of two shafts a, b are provided with toothed wheels c, d encircled by a chain e, spring-pressed bolts g are passed loosely through the toothed wheels to prevent the coupling from falling apart. Cover-plates f prevent the chain from working off sideways. The adjacent faces of the wheels c, d are rounded as shown.
Patent GB-274641-A (GB)
Title: Improvements in or relating to sand or like distributing devices for the wheel tracks of vehicles
IPC: B60B39/04
Filed: 1926-07-20
Abstract: 274,641. Pritchard, H. G. July 20, 1926. Sand and the like, distributing on wheel tracks. -In a sand or like distributing device for use on a motor road vehicle, the sand container is provided with a partition 3 so as to form an end compartment 2 which has communication with the main container 1 through a restricted passage- 4 only so that, when the hinged door or control valve 5 is opened, the contents of the compartment 2 are rapidly discharged and are then followed by a gradual trickle from the container 1. On closure of the door 5 the compartment 2 is gradually refilled. In the arrangement shown, the closing of the door 5 is effected by a torsional hinge spring 6 aided, if desired, by a second spring 13, and the opening is ejected by means of an operating-rod 8 connected with a foot pedal or a hand lever or the brake lever. By providing the compartment 2 with a divided discharge passageway, each container may be arranged to supply sand to two wheels on opposite sides of the vehicle.
Patent GB-1357417-A (GB)
Title: Electrical switch
Inventor: BERBERICH B
IPC: H01H33/72
Filed: 1971-05-28
Abstract: 1357417 Arc extinguishing in switches SIEMENS AG 28 May 1971 [13 June 1970] 18189/71 Heading H1N An arcing chamber for a switch having contacts 2, comprises arc runners (4) between which transverse projections 10 provide a nozzle through which the arc developed must accelerate to a velocity of at least Mach 1 before transferring to the arc quenching plates 6. The projections, which may be an integral part of the chamber wall, Fig. 3 (not shown), are of plastic or ceramic material and may be in the shape of a Laval nozzle. An air blast or a magnetic field may supplement the movement of the arc due to the self induced magnetic field.
Patent GB-847790-A (GB)
Title: Improvements in or relating to the making of moulds of human feet
IPC: A43B7/28
Filed: 1959-05-28
Abstract: 847,790. Forming foot moulds. BRINDIS, M. H. May 28, 1959, No. 18201/59. Class 87(2). The bottom of a foot is embedded in a layer of settable material 2 which is then allowed to set the foot covered with a liquid material 3 which sets to form ar elastic form-retaining mould, and finally the foot removed from the mould by elastically spreading the mould opening. Preferably the impressions 2, 3 of the lower and upper portions of the foot are made from the same material compounded to different elastic consistencies, the upper material being more elastic than the bottom. Suitable materials include alginates, agar-agar, gelatin, synthetic and natural resin foams, synthetic and natural latices, and polymercaptan base synthetic resin.
Patent GB-919805-A (GB)
Title: Improvements in or relating to presses
IPC: B65H37/04
Filed: 1960-05-24
Abstract: 919,805. Laminates and laminating. FRYER, J. W., and FRYER, H. June 12, 1961 [May 24, 1960], No. 18204/60. Class 140. [Also in Group XV] A press, applicable to the manufacture of commercial stationery includes a first roller, a second roller parallel to the said first roller and mounted on a pivoted arm for movement transversely of the said first roller, and means whereby a nip pressure may be applied between the said rollers comprising an additional pivoted arm which bears against the second roller and carries loading means. As shown in Fig. 1, the press comprises a roller 11 mounted for rotation in fixed bearings between two vertically disposed pillars 17 (one pillar only being shown) and a second roller 12 parallel to the first roller and supported in bearings 12a upon a pivoted arm assembly 13. The latter assembly comprises a pair of pivoted arms 13a, supported in lugs 18, which also carry rollers 16c and 16b around which passes endless belt 16c supported on metal plate 16d. The means for applying pressure to the underside of bearings 12a comprises a lever system consisting of two spaced apart parallel arms 14a pivotally supported by pegs 19 in fixed member 20 and adapted to receive and retain weights 21 thereupon. The end of the lever system remote from roller 12 receives and allows passage therethrough of a screw-threaded rod 22 secured to the press framework by a lug 23 and carrying screw-threaded hand wheels 24 which define the limits within which the lever system may pivot. The ends of arms 14a adjacent to roller 12 are cranked and carry rollers in contact with the underside of the bearings 12a. Roller 11 is driven by an endless belt 15a passing around an output pulley 15b on the shaft of an electric motor 15c and around a pulley 15d on the roller. Fig. 2 shows the drive arrangement for roller 12 and corresponding to the opposite side of the apparatus to that shown in Fig. 1. Roller 12 is driven (Fig. 2) from roller 11 through an idler gear 15e meshing with a gear 15f on roller 11, the gear 15e having a sprocket-wheel 15g keyed thereto, the latter wheel carrying a chain 15h which passes around a sprocket-wheel 15i mounted on the press framework. Wheel 15i has a further sprocket-wheel, not shown coaxially keyed to it, carrying a chain 15k which passes around sprocket-wheel 151 on roller 12. An endless belt 16c is driven by a pulley band 25 (Fig. 1) passing around a pulley 26 on roll 12 and a pulley 27 on roll 16a. In use, a blank is fed to rollers 11 and 12 on belt 16c. The nip pressure between rollers 11 and 12 may be adjusted by appropriate location of the weights 21 on levers 14a.
Patent GB-1329761-A (GB)
Title: Machines adapted for use in handling electronic components
IPC: H05K13/00
Filed: 1971-06-01
Abstract: 1329761 Feeding; conveying and wrapping electronic components USM CORP 1 June 1971 [2 June 1970] 18257/71 Headings B8A and B8C Electronic components C having wired ends, are fed from shoots 25 to respective dispensing devices 40. Each of the latter controls the feed of the devices to carriers of an endless conveyer 64. The operation of the devices 40 is controlled by a computer (56) (Fig. 2, not shown) so as to arrange the components in successive carriers according to a predetermined programme. The components are delivered in succession by the conveyer to a position in which each wired-end is engaged in peripheral slots of a pair of toothed feed wheels 96 (i.e. there is one pair of wheels 96 at each end of the component). By this means each of the wire ends of each successive component are carried round and engaged between opposed plastic tapes fed from upper and lower pairs of supply reels 152. The taped-up components are then wound off on to a storage reel 156. The dispensing devices (Fig. 4).- Each shoot 25 feeds the components in a taped-together succession via guideways 26, 28 to a feed wheel 30. The end-wires are successively cut to predetermined length and the tapes are removed by cutters 46. The components are then fed by feed wheels 32 driven by rotary solenoids (54) under the control of the computer 56, to a position in which the wires are engaged in guide slots formed by surfaces 58, 60. The conveyer.-Carriers 64 articulated on an endless chain have fixed plates each having a sloping surface 80, and a pivotally mounted plate having a sloping surface 88. The upper end 86 of the pivotal plate engages the article which is held by its wires in the guide slots 58, 60, and sweeps the article into a position in which its wire ends are gripped between the surfaces 80, 88. A cam surface 82 engages a portion 84 of the pivotal plate and maintains the latter in gripped position. The taping mechanism.-Adjustable plates 90 form a continuation of the cam surfaces 82 and serve to control the transfer of the successive components by the conveyer via guide surfaces carried by plates 92, to pockets 94 of wheels 96. The components are centred laterally by guides 108, 108. The taped assembly is subject to pressure by a roll 126 the force of which can be modified by a spring adjustment member 148.
Patent GB-331080-A (GB)
Title: Improvements in the manufacture and production of electrodes for accumulators
IPC: H01M4/30
Filed: 1929-06-14
Abstract: 331,080. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). June 14, 1929). Electrodes.-Active material for accumulators is produced by subjecting metal powders, such as nickel or iron, mixed with at least 5 per cent of additional substances capable of removal, to a sintering process with or without the aid of pressure. The additional substances are removed simultaneously or subsequently by solution, volatilization &c. The metal powders may be produced from the corresponding carbonyls. The substances to be removed to make the plate porous may consist of sodium or potassium chloride or sulphate, ferric aluminium or mercuric chloride, ammonium bicarbonate or chloride or oxalate, oxalic acid, urea-, naphthalene &c. Pressure over the mass during sintering may be produced by carrying out the process in an atmosphere of ammonia which also delays the volatilization of the additional substances and ensures satisfactory sintering. Carbon may also be used as an additional material and may be removed from a slab of sintered nickel by oxidaion in air, steam or carbon dioxide. Any nickel oxide which may be formed may be reduced ,electrolytically or in a stream of hydrogen. Substances such as iron oxide and mercury oxide which are not intended to be removed may be added to the original metal powder mixture. Nickel plates obtained by this process may be impregnated with a solution of nickel nitrate and used as anodes in accumulators having an alkaline electrolyte.
Patent GB-562404-A (GB)
Title: Loop-taker mechanism for sewing machines
IPC: D05B73/00
Filed: 1942-12-27
Abstract: 562,404. Sewing - machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Dec. 27, 1942, No. 18381. [Class 112]. A two-needle sewing-machine has rotary hooks 40 carried by vertical shafts 41 mounted in brackets 42 adjustably Secured beneath the workplate. The hooks are furnished with mechanical-openers comprising vertical shafts 76, 88 carrying at their upper ends arms 78, 90 which engage projecting ears 82, 92 on the spool-case holders. The hooks make two revolutions for each stitch and the mechanical-openers are actuated during the stitch-forming revolution ' only by means operated from an eccentric 58 on the bed shaft 25. This means comprises a lever-arm 64, a link 65, a slidebar 68 adjustable tappets 73, 74 and levers 75, 87 at the lower ends of shafts 76, 88. In a modification, the slidebar 68 is replaced by a rock-shaft carrying adjustable levers linked to arms on the shafts 76, 88.
Patent GB-365011-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H04B1/16
Filed: 1931-06-25
Abstract: 365,011. Valve amplifying and detecting circuits. BREY, H. W. K. DE, 93, Willem de Zwijgerlaan, The Hague. June 25, 1931, No. 18390. Convention date, July 11, 1930. [Class 40 (v).] In a direct-coupled valve amplifier (plate of first valve connected directly to grid of second valve), two separate sources of plate voltage are employed, the main source serving to supply both valves whilst the auxiliary source supplies additional plate voltage to the first valve only. As shown in the Figure, the first valve I is of t h e screen-grid type, and its plate is connected directly to the grid of the triode valve II, the plate circuit of the valve I including a high resistance 1. The second valve has its plate voltage supplied by a transformer 4, rectifier 6, and smoothing circuit 7, 8. An auxiliary source of plate voltage comprising transformer 3, rectifier 5, and smoothing circuit 11, 12, 12<1> creates a D.C. voltage at the points C, D which is added to that supplied by the other rectifier across the points D, E, and is applied across the cathode and plate of the first valve I. The common lead D of the two rectifying-systems is connected to the cathode of the second valve II. Thus the rectifier 6 supplies the heavy current required by the output valve, whilst the two rectifiers 5, 6 connected in series supply a higher voltage, but only a slight current, as required by the first valve I. An additional smoothing circuit 9, 9<1>, 10, 10<1> is included in the lead to the first valve. Grid bias for the valve I is provided by a resistance 13 in the cathode lead, and the screen grid is polarized by a connection to the lead D through a resistance 19. A single transformer may replace the separate units 3, 4 ; and the smoothing elements 7, 9, 91 may be connected in parallel, Fig. 3 (not shown).
Patent GB-154271-A (GB)
Title: Improvements relating to dynamo electric machinery
IPC: H02K9/08
Filed: 1919-07-24
Abstract: 154,271. Cooper, T. L. R. July 24, 1919. Alloys.-High nickel steels which have high magnetic permeability and high electrical resistance and which are practically non-corrodible are employed in the construction of dynamo-electric machines. The percentage compositions of two such steels are given in the Specification; the first contains iron, nickel, chromium, manganese, carbon, and silicon; the second contains iron, nickel, manganese, chromium, carbon, silicon, sulphur, and phosphorus. Specifications 113,627, 117,296 and 126,099, [all in Class 35, Dynamoelectric generators &c.], are referred to.