baber/WOPTO huggingface dataset:
Patent GB-855249-A (GB)
Title: Overhead conveyors
Inventor: TURTON JOHN ARTHUR
IPC: B65G21/22
Filed: 1958-07-25
Abstract: 855,249. Elevated railways. NEW CONVEYOR CO. Ltd. July 16, 1959 [July 25, 1958], No. 23975/58. Class 104 (2). In an overhead conveyer having an I-section rail forming a circuit and an endless chain for traversing a trolley along the rail a gap between the rail ends 10, 11 is bridged by a pair of complementary and interengaging extensions 12, 13, the extension 12 being of I cross-section with the marginal edge portions of its foot 12b turned downwardly and inwardly to form a pair of facing channels, the other extension 13 taking the form of a strip 13b slidably engaging the facing channels, and a pair of guide-strips 13a each secured at one end to the sides of the head 11a of the rail 11 and interconnected near their other ends by a bridge-piece 13c slidable on the head 12a of the extension 12.
Patent GB-1380510-A (GB)
Title: Tamped contact
IPC: H01R39/36
Filed: 1973-05-21
Abstract: 1380510 Electrical connection ELEKTROKOHLE LICHTENBERG VEB 21 May 1973  [14 Aug 1972] 24094/73 Heading H2E The flexible connector of a carbon, graphite or metal graphite brush is secured in a recess in the brush by tamping round its end an ungraded iron powder of grain size under 0À4 mm., mixed with from 0À5 to 5% of graphite powder (preferably 2%) to reduce voltage drop across the connection and to improve pull-out strength.
Patent GB-231659-A (GB)
Title: Improvements in advertising apparatus
IPC: G09F7/22
Filed: 1923-09-27
Abstract: 231,659. Fishburn, T. H. Sept. 27, 1923. Reel and endless-web apparatus; actuating.-In advertising-apparatus of the type in which a bladed wheel is operated by wind pressure to move an endless band intermittently, lever or clutch mechanism, engaging stops associated with a rotating drum, is provided for registering the displayed matter after each operation. The band j passes over a driving drum l and spacing rollers h, i, k, and is viewed through a window c in a casing b. The wheel a drives through worm gearing a sprocket e connected by chain f to a sprocket g, on the spindle of which the roller h rides loosely. Pins o on the chain f engage a pivoted lever m which operates a pawl p engaging a ratchet q on the shaft of the drum l. The lever m when released by a pin o is retracted by a spring n and advances the drum l and the band to a new display. The drum l is registered by pins r thereon which are embraced by a stop a<2> and a pivoted member t on a falling pivoted lever u which is raised by a cam s rotating with the lever m. Fig. 6 shows an alternative construction in which the bladed wheel drives a toothed wehel l<2> loose on the drum shaft. A peg on the wheal l<2> abuts against a pin on a lever y mounted on the side of a pulley l<1> to which is attached a cord tensioned by a weight w. The wheel l<2> thus turns the pulley l<1> and raises the weight w till they are disconnected by a fixed cam raising the lever y. The weight w then rotates the drum through a pawl and ratchet l<4>. A notched locating disc l<5> is engaged by a pivoted detent z and a follower pawl to position the 'drum. The detent z is snapped into the " in " and " out position by pins on the pulley face.
Patent GB-1133472-A (GB)
Title: Improvements in or relating to dough production
Inventor: PICKLES KENNETH
IPC: A21C1/14
Filed: 1965-06-08
Abstract: 1,133,472. Treating flour. TWEEDY (CHIPPING) Ltd. 5 July, 1966 [8 June, 1965], No. 24118/65. Heading A2Q. [Also in Division B1] In the production of dough by mixing, the flour is subjected to reduced pressure before contacting other ingredients and kept under sealed conditions until the mixing is completed. Suitable apparatus as shown is substantially that of Specification 1,035,314 and comprises a tiltable mixing chamber 10 with agitating rotor 12 and sealable lid 19, having flexible connection 25 with a flour hopper 21 provided with a second sealable lid 26 and an air extractor fan 28. In this apparatus the mixing chamber will also be subjected to reduced pressure during mixing.
Patent GB-1359237-A (GB)
Title: Electric power converters
IPC: H02M5/22
Filed: 1972-05-23
Abstract: 1359237 Converting GENERAL ELECTRIC CO 23 May 1972 [26 May 1971] 24126/72 Heading H2F Apparatus for converting L.F. A.C. or D.C. electric power to a desired L.F. A.C. or D.C. output comprises first and second switching circuits with an H.F. single phase link therebetween and connected respectively to a set of input terminals and a set of output terminals, each switching circuit including a plurality of solid-state switching devices to establish a plurality of circuit paths through the H.F. link by simultaneous conduction of different combinations of the switching devices, and control means for simultaneously rendering conductive a selected combination of the switching means for a short, predetermined interval and for repeating this sequentially with the same or other combinations at a H.F. switching rate to generate a series of energy transfer pulses, the control means including means to compute, in advance of the conduction of a pulse, the error, according to a particular criterion, between instantaneous values of a predicted output waveform and a desired waveform for each possible path and to select and activate the combination of switching means that produces a minimum error. One embodiment, Fig. 1, is adapted to convert a 3-phase input at 14, 15, 16 to a desired 3-phase output at 33, 34, 35 and each switching circuit includes 3 pairs of backto-back thyristors A1, A2-C<SP>1</SP>1, C<SP>1</SP>2 and the H.F. link comprises a transformer 21. Gating of the various thyristor pairs is done by the circuit 45 which uses information derived by sensors in the form of transformers 50-59 where the primaries are positioned to sense quantities, e.g. input, output voltages and commutating capacitor voltages and deliver this information via the secondaries to the circuit 45. In this embodiment, the criterion used is the least sum of the errors squared, and the control circuit utilizes the sensed information to derive, for each of the 9 possible paths and for the event where no thyristors are gated, the sum of the squares of the differences between the predicted output voltages as calculated according to circuit laws for the embodiment and the desired output voltages for each of the three phases at the end of the energy transfer pulse. The timing control of the circuit causes this to be done during each turning-off period of the thyristors between successive pulses. The output at 33-35 will then be as in Fig. 5a where the straight lines are the desired 3-phase A.C. output on a greatly magnified scale.
Patent GB-1365400-A (GB)
Title: Single sheet receiver
IPC: B65H31/24
Filed: 1972-05-23
Abstract: 1365400 Delivering sheets XEROX CORP 23 May 1972 [24 May 1971] 24131/72 Heading B8R The individual sheet receiving trays of the document sorting machine described in Specification 1,365,399 (Heading B8R) comprise a swingable member 267 which is arranged to be struck by the leading edge of a sheet entering a tray and to swing back under gravity after the impact to strike the trailing edge of the sheet thus urging it towards the wall of the tray. A pressure roller 257 mounted on a pivoted frame 253 may also be provided.
Patent GB-1034766-A (GB)
Title: Improvements in electrode for primary battery and primary battery
IPC: H01M6/34
Filed: 1964-06-11
Abstract: 1,034,766. Primary cells. GENERAL ELECTRIC CO. June 11, 1964 [July 23, 1963 (2)], No. 24229/64. Heading H1B. A water-activated cell with a bipolar electrode having a conductive central layer 3 with a binary alloy 2 of mercury and magnesium (0À5-5% Hg, 99À5-95% Mg) on one side and a depolarizer of silver chloride or cuprous chloride 4 with spacers 8 embedded therein.
Patent GB-631053-A (GB)
Title: Improvements in and relating to sequential control apparatus for moulding machines
IPC: B22C11/00
Filed: 1947-09-02
Abstract: 631,053. Moulding- machines. STONE-WALLWORK, Ltd., and TAIT, W. Sept. 2, 1947, No. 24242. [Class 83 (i)] [Also in Group XXVIII] Moulding apparatus includes sequential control apparatus comprising a rotary cam-shaft having a plurality of cams operating a series of fluid-pressure valves, driving means for turning the cam-shaft and a device for stopping the driving means automatically at the end of a sequence of operations. The invention is described as applied to a moulding machine of generally known type comprising a head 1 on an arm 1<SP>1</SP> rotatable about its supporting column 2, a pneumatic jolt and squeeze unit 3 having a table 3<SP>1</SP> for carrying a pattern plate 4<SP>1</SP> and a mould box 4, vibrators 5 and a lift unit 6 with lifting pins 6<SP>1</SP> for raising the mould off the pattern. The machine may also include a mould filling arrangement to which the sequential control is also applied. This arrangement comprises a continuously rotated disc 52 to the outer part of which sand from a shoot 54 is distributed by a cone 55. Ploughs 57 movable to and from the disc by pneumatic cylinders 60 serve to push sand off the disc into one or more moulding boxes. The 'control apparatus comprises a casing 8 housing a motor-driven camshaft 9 beneath which is a rocker-shaft 12 carrying a rocker 13 for each of a series of cams 14 on the cam-shaft. Each cam comprises two discs 19 with lobes 20 which are relatively adjustable so as to vary the length of dwell and the cams are mounted in pairs on hubs 16 which are keyed to the shaft 9. The motor driving the cam-shaft is started by a pushbutton switch 27 and at the end of the sequence of operations is switched off by one of the cams. The pneumatic control valves are mounted beneath and to each side of the rocker shaft and are of the known poppet type adapted to be opened by the rocker shafts against the action of springs 32. In a typical sequence of operations, a mould box 4 is placed on the table 31 and the starter button is pressed. The head 1 moves into position over the box and jolting and finally squeezing takes place. The squeeze cylinder is then exhausted and the head 1 swung away. Next, the vibrators 5 are operated and the unit 6 lifts the mould box from the lattern. Finally, the lift cylinder is exhausted and the motor switched off. The control apparatus may also be applied to moulding machines of the turn-over type.
Patent GB-534474-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/08
Filed: 1939-08-23
Abstract: 534,474. Electron multipliers. BOSCH, F. J. G. VAN DEN., and VACUUM-SCIENCE PRODUCTS, Ltd. Aug. 23, 1939, Nos. 24307 and 24819. [Class 39 (i)] The control electrode 20 for the primary electrons of an electron multiplier is used in combination with two accelerating electrodes 21, 22 on opposite sides and operating at potentials which are positive with respect to the cathode 11 and may be the same as the first of a series of secondary electron emitting cathodes 16. A second control electrode 23 may be disposed between the cathode 11 and the electrode 21. The control and accelerating electrodes may consist of discs with central apertures in line with the emissive surface of the cathode, and the electrode 22 may have a tubular expansion 24 and additional disc member 25 integral therewith. Alternatively these electrodes may be formed of perforated or mesh material, in which case the electrodes 21, 22 are joined by a wall of continuous or grid construction. The multiplier may comprise a number of secondary cathodes as described in Specifications 516,621 and 531,541. The cathode construction is as described in Specification 531,821 and consists of a tube 10 with a disc like part 11 provided with an emissive coating. A second emissive coating is provided on the tube and coacts with a grid 12 and anode 13 to form a triode enclosed in a screening member 14, 15, by which local oscillations are produced and applied to one of the control electrodes, while incoming signals are applied to the other.
Patent GB-817735-A (GB)
Title: Improvements in or relating to steroidal compounds
IPC: C07J1/00
Filed: 1956-08-09
Abstract: The invention comprises alkyl trans hexahydroterephthalic esters of steroids having the general formula <FORM:0817735/IV (b)/1> wherein R represents an alkyl radical and R1 represents the radical of a steroidal hormone connected by an oxygen atom thereof, and the preparation thereof by acylating a hydroxy substituted steroidal hormone with the required hemiester of trans-hexahydroterephthalic acid at ambient temperature or at an elevated temperature. Preferably R represents an alkyl radical containing 10 or less carbon atoms such as 8 carbon atoms.  The above process may be carried out in the presence of or in the absence of a solvent for the reactants. The hemiester reactant may be used in the form of its acid chloride and the reaction is effected in the presence of an agent capable of taking up hydrochloric acid, e.g. a tertiary organic base such as pyridine, 2-ethyl-5-methylpyridine or triethylamine.  The steroidal hormone reactant may be testosterone, estradiol, cortisone or prednisone. Suitable hemiester reactants are the hemi-methyl, -isopropyl, -n-butyl and -n-octyl esters of trans-hexahydroterephthalic acid. The desired trans-esters may also be obtained by reacting the required acid chloride of a hemiester of trans-hexahydroterephthalic acid with a derivative of the required hydroxy substituted steroidal hormone to form a diester, and the derivative is converted into the desired steroid.  Thus a 17-trans-hexahydroterephthalate of 17-hydroxy-etiocholanone of the above general formula may be prepared by brominating the 17-trans-hexahydroterephthalate of 17 - hydroxy - etiocholane in the 4 - position to form the corresponding 4-bromo compound and then dehydrobrominating the 4-bromo compound to form the corresponding ester of testosterone.  In the examples the following compounds are prepared: the n-butyl testosterone ester, n-butyl estradiol 17-ester, n-butyl cortisone 21-ester n-butyl prednisone 21-ester, isopropyl testosterone ester, and methyl testosterone ester of trans-hexahydroterephthalic acid. Specification 817,736 is referred to.
Patent GB-592855-A (GB)
Title: Improvements in reversible latches
IPC: E05B63/04
Filed: 1944-12-07
Abstract: 592,855. Latches. VAUGHAN, S., and VAUGHAN, JUN., S. Dec. 7, 1944, No. 24460. [Class 44] In a door-latch having a head which is reversible without opening the casing, the head A has a rearwardly extending plate a with a slot in which engages a stud b<1> projecting from an upstanding lug b on a lath B which is retracted by a lever C operated by a follower D against a spring E. The plate a of the latch head A lies against a slider F which is formed with bent-up cheeks f, f<1> embracing the plate a, and stepped downwardly at the front end. A lug f<2> on the slider projects through a slot in the casing, so that the slider may be pushed back and held as shown in Fig. 5 to allow the head A to be disengaged from the stud b<1>, taken out, and reversed. Alternatively the slider may have a lug f<8> which can be engaged by the key to hold it retracted. The slider F is urged forward by a spring J, and is pushed back, with the latch head, in the action of latching the door.
Patent GB-1499956-A (GB)
Title: Automatic centrifugal coffee machine with entirely continuous operation
IPC: A47J31/42
Filed: 1976-06-14
Abstract: 1499956 Coffee infusing machine SOC NORMANDE DE SERVICES AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE, SOC GENERALE POUR LE FINANCEMENT DE L'INNOVATION SOGINNOVE, S L L CAILLIOT B COR and A GASTINNE 14 June 1976 [13 June 1975 26 Feb 1976] 24511/76 Heading A4E [Also in Divisions B1/2] A coffee infusing machine comprises a centrifuge chamber 23, 23a mounted eccentrically within a planet cage 6, 6a which planet cage and centrifuge chamber are driven to rotate coaxially and at slightly different speeds, and in the same sense a central shaft 2 provided at its upper end with an auger, said planet cage being separated from said central shaft by a coaxial fixed sleeve 36 having a scraper 34 to clean solids from filter rings 33. The Fig. 2 shows a coffee infusing centrifuge  wherein boiling water passes from container 3, pipe 4 and rotating trough 5 to pipe 5a and centrifuge chamber where it meets ground coffee grains from grinder 1, 1a and 2, fed through tube 25. A filtered infusion passes between filter rings 33 to duct(s) 27a and tube 29. Spent grounds fall into turbine blades 6b and are ejected. A motor 10 drives toothed wheels 11 and 7 on shaft 2 and planet cage respectively. A pinion 21 on shaft 2 drives pinions 20 directly and pinion 22 both mounted on a shaft in the planet cage. A toothed ring 24 in the centrifuge chamber is thus driven with respect to the planet cage. The superimposed rings 33 of the filter oscillate with respect to each other ( to allow filtrate to flow) as they rotate. The degree of oscillation (and hence filtering gap) may be controlled by inclined rods 52, 52a on springs 53, 53a which rods are adjustable in inclination depending on the height of pre-setting of the threaded collar 57.
Patent GB-1516136-A (GB)
Title: Valves for pressurised dispensers
IPC: B65D83/14
Filed: 1975-06-07
Abstract: 1516136 Pressurized aerosol container valves AEROSOL INVENTIONS & DEVELOPMENT SA 7 June 1976 [7 June 1975] 24549/75 Heading F1R To ensure that the resilient gaskets 7, clamped between the top of boss 2 of valve mounting cups 3 and the rim 17 of valve housings 10, are consistently compressed during production, the houing 10 is provided with a flange 14 which engages a shoulder 15 formed in the boss, the flange being engaged by crimps 12. The shoulders 15 and crimps 12 are interrupted at spaced points to permit round-the-housing filling. In a second embodiment the shoulder is formed near the open end of the boss and the flange has perforations to permit filling flow: the rim end of the housing has a shoulder engaged by crimps.
Patent GB-198950-A (GB)
Title: Improvements in or relating to electric rectifiers and methods of operating the same
IPC: H02M7/06
Filed: 1922-09-11
Abstract: .198,950. Naamlooze Vennootschap Philips' Gloeilampenfabrieken, and Holst, G. Sept. 11, 1922. Arc and spark-gap apparatus, arrangements of. -In a rectifier in which an arc discharge takes place in a closed vessel containing inert gas, the cathode being maintained at incandescence by the arc and the anode being relatively cool, the electrodes are so shaped and arranged and the composition and pressure of the gas filling are so chosen that a glow discharge occurs at ordinary supply voltages and automatically initiates the arc discharge. As shown in Fig. 1, the cathode 3 is of tungsten, molybdenum, or other refractory material, and of such a size that it is heated to incandescence (preferably beyond 2000‹ C.) by the arc discharge. The glass envelope 1 is filled with a rare gas to which is added a small volume of another rare gas having an ionization potential lower than the tension whereby the first inelastic collision in the first gas occurs, for example neon may be admixed with 0.5 to 5 per cent of argon by volume, preferably 1 per cent. With this mixture and a supply voltage of 220 volts the gas pressure may be 25 to 40 cm. of mercury, the distance between the electrodes being 0.5 m.m. The gas pressure may be higher than this if auxiliary devices are provided to initiate the glow discharge; for example, an auxiliary electrode may be provided opposite the cathode lead, or a heating-coil may be arranged close to the cathode. A potentiometer GH is connected across the mains and a resistance KM of equal value is arranged parallel thereto. A slider OP enables the full line pressure to be applied for starting the glow discharge; this pressure is then reduced whilst maintaining a constant resistance HP + OK in the circuit of the rectifier and the battery 33 being charged. Alternatively, a transformer may be employed, a two-way switch enabling the rectifier to be connected across the mains in series with a resistance for starting, and then in series with the transformer secondary, which may be adjustable, an adjustable resistance, and the battery to be charged. The switch may be operated electromagnetically. In the arrangement shown in Fig. 3 an auxiliary electrode 18, for example of magnesium, is employed for starting the glow discharge between the electrodes 16, 18, the arc being then established between identical electrodes 16, 17. This arc is finally transferred to the electrodes 17, 15 for rectifying and the battery put in circuit. A three-way switch 20 is moved in succession to contacts c, d, e for these operations. In a further arrangement, Fig. 4, two rectifiers 25, 26 are connected to the halves 29, 30 of the secondary winding of a transformer so constructed that the secondary tension falls rapidly with increase of current. the current passing through the rectifiers 25, 26 during alternate half-periods. Specification 181,675, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-941509-A (GB)
Title: Improved adjustable steering column
IPC: B62D1/18
Filed: 1962-06-27
Abstract: 941,509. Adjusting steering columns. FORD MOTOR CO. Ltd. June 27, 1962 [July 20, 1961], No. 24634/62. Heading B7H. The steering shaft of a tractor is in two portions 25 and 24 connected together by a universal joint 26, the lower portion being connected through a universal joint 29 to a transmission shaft 29 of the steering mechanism, the upper portion bearing the steering wheel 14 being enclosed in a housing 12 and supported by a bearing 30 in a yoke 31 pivoted for movement in a vertical plane. The housing 12 passes through a slot 37 in the cowling 11 of the tractor and the yoke 31 is provided with bosses 42, which may be wedge shaped to avoid rattles, which engage either of pairs of slots 42 formed in a pair of vertical flanges 41 extending from adjacent the longitudinal sides of the slot 37. A pair of arms 32 extend downwardly from the yoke 31 and have slots 34 engaged by pivots 35 carried by brackets 36 extending from the cowling 11, springs 45 located between the pivots 35 and anchors 46 urging the yoke upwardly, and therefore the bosses 44 into engagement with the slots 42 at all times, so that the steering column may be located in one of two positions to facilitate steering from either standing or sitting positions. The lower end of the shaft 24 is slidable within the joint 29 and a rubber liner 39 may be provided to close the slot 37 on either side of the column 12.
Patent GB-1178082-A (GB)
Title: Water Soluble, Copper Containing Reactive Dyes
Inventor: AUERBACH GUNTHER
IPC: C09B62/255
Filed: 1968-05-23
Abstract: 1,178,082. Water-soluble dis-azo reactive dyes. SANDOZ Ltd. 23 May, 1968 [8 June, 1967], No. 24717/68. Heading C4P. Water-soluble copper containing reactive dyes of Formula I in which A is a benzene radical which may be substituted, or is a diphenyl, diphenylamine, stilbene or naphthalene radical which contains sulphonic acid groups and may bear further substituents, B is an aromatic radical which contains sulphonic groups and may be further substituted, R is hydrogen or a hydrocarbon radical of 1-6 carbon atoms, hal stands for halogen, X is hydrogen, methyl, chloromethyl or dichloromethyl and which dyes contain at least 4 sulphonic acid groups the group -CuO- being in ortho position to the -N = N- group are prepared by diazotizing and coupling an amine of Formula II with a compound III or by diazotizing and coupling an amine IV with a compound III above followed by hydrolysis of the acyl group and subsequent reaction with a functional derivative of a carboxylic acid of Formula V The copper-containing reactive dyes are used for dyeing wool, silk, polyamide, cellulose fibres and leather, navy blue shades being obtained.