baber/WOPTO huggingface dataset:
Patent GB-913024-A (GB)
Title: Sea water evaporator
IPC: B01D1/30
Filed: 1961-02-07
Abstract: <PICT:0913024/III/1> <PICT:0913024/III/2> <PICT:0913024/III/3> A still for distilling sea water comprises a chamber 15 equipped with a bundle 22 of U-tubes 23 supplied with a heating-medium, and an upper chamber 16 containing a tubular condenser 39, a semi-cylindrical shroud 27, comprising two arcuate members, being mounted longitudinally beneath the heater so that there is an elongated opening 29 between the bottom edges of the members, which runs lengthwise beneath the tube-bundle, whereby circulation of the sea water over the tubes is promoted when the still is in operation.  Sea water is supplied to the bottom of chamber 15, through a conduit (not shown), at such a rate that a slight amount passes over weir 34, and is withdrawn through pipe 36.  A vacuum is maintained in the still by a jet pump (not shown) connected to the top of the condenser housing by pipe 58.  The pump may be actuated by the cooling medium discharged from the condenser.  The heating medium for tubes 23 may be water at about 180 DEG F., taken from the cooling jacket of an internal combustion engine.  The steam from the boiling sea water passes through a wire mesh de-mister 20, mounted in the opening of partition 17, whereby entrained sea water is removed.  The steam condenses on the tubes of condenser 39, the condensate is collected in trough 42, and flows into reservoir 44.  The condensate is normally withdrawn through pipe 45 but it may be withdrawn through pipe 48 which has a valve operated by a salinity cell, if the salt content of the distilled water exceeds a predetermined value.  The shell of the still may be made of a copper-nickel alloy or laminated fibre glass.
Patent GB-1476541-A (GB)
Title: Exposure time control circuit for a shutter of a camera
IPC: G03B9/58
Filed: 1975-02-03
Abstract: 1476541 Shutter control circuit SEIKO KOKI KK 3 Feb 1975 [7 Feb 1974] 4567/75 Heading G2A [Also in Division H3]  A shutter control circuit comprises a differential amplifier 7, 8 which is part of an integrated circuit S and which de-energizes a shutter closing electromagnet 3 when the voltage on an integrating capacitor 12 charging through a photo-conductor 11 exceeds that set by a resistor 10 according to diaphragm aperture or film speed; a transistor 16 and resistor 17 being connected as shown to the capacitor 12, resistor 10, integrated circuit S and battery 1 in order to: (a) protect the integrated circuit S if the battery 1 is wrongly connected (b) compensate for the base-emitter voltages of transistors 7, 8, so that the range of adjustment of resistor 10 is increased. Fig. 2 (not shown) depicts a prior art arrangement for providing advantage (b) comprising diodes (14, 15) connected to the negative side of resistor 10 and capacitor 12.
Patent GB-923513-A (GB)
Title: Improvements in semiconductor devices
IPC: H01L21/225
Filed: 1960-02-09
Abstract: 923,513. Semi-conductor devices. SHOCKELY TRANSISTOR CORPORATION. Feb. 9, 1960 [May 29, 1959], No. 4605/60. Class 37. A PN junction semi-conductor device is made by diffusing impurity of one conductivity type into a surface of a body of opposite conductivity type to which at least one dislocation extends to form at junction which is further from the surface at the dislocations than elsewhere. A diode, Fig. 2, is formed by selecting an N-type silicon wafer 11 containing a dislocation 12 extending between its faces, masking one face with a silicon oxide layer 13, depositing donor material on the exposed surfaces and heating to form a surface N + layer. The masking layer 13 is then removed, the upper face similarly masked 14 and acceptor impurity deposited on and diffused into the exposed surface to form a P + layer. In both diffusion processes diffusion is most rapid along the dislocation so that in the resulting body, Fig. 2C, a junction between heavily doped P and N materials is produced on the line of dislocation only. The mask 14 and edges of the wafer are subsequently removed and ohmic contacts 17, 18 provided, Fig. 2D. The device is useful as a microwave detector when biased to near its avalanche breakdown voltage. As an alternative additional diffusion processes are used to form layers of P- and N-type outside the N + and P + layers respectively before applying the ohmic contacts. The resulting device is a PNPN diode the middle junction of which has a very low breakdown voltage. A transistor is made by diffusing acceptor impurity into the entire surface of an N-type wafer for so long that a continuous P-type zone is formed along the dislocation line. One surface is then masked with an oxide coating 26, Fig. 3C, and donor impurity diffused into the exposed surface to give the zone configuration shown. The wafer is then cut to the form shown in Fig. 3D and evaporated metal ohmic contacts provided to the three zones. An alternative way of using the dislocation is to form opposed conical etch pits on opposite faces of an N-type wafer at the dislocation and to diffuse donor and acceptor impurities into the respective faces to form a P + N + junction between the pits. Another example of this is shown in Fig. 5, in which a dislocation etch pit is formed extending through the P-layer of a wafer containing a PP + junction and donor impurity diffused into the pitted surface to form a P + N + junction at the base of the pit. In all these devices the working part of the device, i.e. the part dominating its characteristics is extremely small but is supported in a larger robust heat-conducting body.
Patent GB-685601-A (GB)
Title: Aquatic-motored or submarine apparatus
IPC: B63H11/00
Filed: 1947-02-18
Abstract: 685,601. Propelling submarines. MUNGUET, O. F. Feb. 18, 1947. [March 25, 1946] No. 4711/47. Classes 113 (ii) and 114. [Also in Gruup 1W`11J The internal combustion engine of a submarine is provided with regeneration chambers through which sea water is passed, in which by the application of heat, reduced pressure or other methods the oxygen in solution is released and the products of combustion absurbed. Sea water entering at O passes through the regenerator R to the pipe b and so to the engine cylinder jacket C, the engine working as a Humphrey pump. Exhaust gases leave the cylinder through the pipe D, absorb oxygen from the water in the regenerator, and return to the cylinder for combustion by the pipe d. The propelling water jet leaves through the orifice B which may also entrain additional water.
Patent GB-1535823-A (GB)
Title: Amplifier circuit
IPC: H03F1/32
Filed: 1976-02-06
Abstract: 1535823 Transistor amplifiers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 Feb 1976 [10 Feb 1975] 04722/76 Heading H3T An amplifier having compensation for distortion e.g. for amplifying high frequency signals in cable distribution systems, comprises a first transistor 1 the base of which is coupled to a signal input terminal 30 and a difference amplifier including a second transistor 21 whose base is coupled to the emitter of 1 and whose emitter is connected to the base of 1 by a passive coupling which includes a series impedance 19, the outputs of 1 and 21 being combined so as to cancel distortion produced by transistor 1. The input voltage between base and emitter of transistor 21 is substantially the difference between the output and input of emitter follower transistor 1, i.e. it represents the distortion due to 1. Transistor 35 provides an emitter follower input to 1 of low impedance (R 16 ), Fig. 2 (not shown). It is stated that the collector current of 21 is of the right amplitude to act as a correction current for the distortion if R 19 =R 22 -R 16 , and that R 22  should be equal to the load R 9 . In another embodiment, Fig. 4 (not shown), the difference amplifier transistor (46) is of complementary type to transistor 1, and the circuit may then be simplified by omitting the inductors 36, 43, the resistors 37, 42 and the capacitor 38. In another embodiment, Fig. 5 (not shown), the circuit of Fig. 4 with complementary transistors is rearranged so that transistors 1 and 35 form a collector coupled pair, and the load 9 has one terminal at positive supply potential.
Patent GB-230251-A (GB)
Title: Improvements in roller bearings
IPC: F16C19/49
Filed: 1924-02-25
Abstract: 230,251. Cowburn, F. C., and Cowburn, G. M. C. Feb. 25, 1924. Ball and roller bearings.-Each roller 3 of a conical roller bearing is retained in the operative position by a spring 5 fitted in a bore in the roller and held compressed by a pin 6 having a conical head 7 bearing against a thrust plate 11<a>. A ring of balls is fitted between the plate 11<a> and a flange 8 on the inner race ring 1 and between a flange 10 on the outer race ring 2 and a detachable flange 9 on the inner ring 1. The rollers and the races have a common apex.
Patent GB-1042536-A (GB)
Title: Method of coupling high frequency electric circuit
IPC: H05B6/48
Filed: 1964-02-05
Abstract: 1,042,536. R.F. couplings; valve oscillators. S. YAMAGUCHI. Feb. 5, 1964 [Feb. 13, 1963], No. 4799/64. Headings H3F and H4A. An oscillator tank circuit 4 is coupled to a dielectric heater 10, 11 by a flat metallic plate 7 in a circuit including a capacitor 8 and a coil 9. Vinyl sheets 12 are thereby welded together. Earthing 6 at the junction 8, 11 may be omitted.
Patent GB-307197-A (GB)
Title: Improvements in or relating to head lamps for motor road vehicles
IPC: B60Q1/124
Filed: 1928-02-16
Abstract: 307,197. Masson, S. Feb. 16, 1928. Vehicle lamps, directing; anti-vibration devices. -Each head lamp is carried on a rotatably mounted vertical shaft D<1> having an arm O<1> slidably connected to the tie-rod E, so that movement of the latter in steering communicates a corresponding rotational movement to the lamps. The arm O<1> may be an extension of the shaft D<1> as shown; its connection to the tie-rod E is by means of a ball-joint C', Fig. 5, carrying a bush B<1> in which the arm can slide. Vertical movement of the shaft D<1> is allowed for by means of a spring M<1>. In the case of two head lamps, the arms O<1> converge on to a vertical line which is central as regards the chassis, in the " straight " position of the steering-gear, the stub-axle arms to which the tie-rod E is connected converging on to the same line.
Patent GB-212250-A (GB)
IPC: C03B13/02
Filed: 1924-02-26
Abstract: 212,250. Michaelis, K., (Assignee of Riechers, F.). March 2, 1923, [Convention date]. Delivering molten metal.-Relates to the manufacture of plate glass, and more particularly to the method of casting the contents of a melting pot on to the rolling-table. According to the invention, the pot of metal a, Fig. 4, is brought near to one side of the rolling table g and is then turned about an axis d<1> extending near the upper edge of one of its side walls, as shown in Fig. 6. In order to facilitate the process, the fork 3, 3<1> that grips the pot has its shaft 6 cranked, so that the axis of the part 5, which is journalled in the supporting-device 2, is in line of the edge of the pot over which the glass flows.
Patent GB-295906-A (GB)
Title: Improvements in the construction of gas and coke ovens
IPC: C10B29/02
Filed: 1928-02-16
Abstract: 295,906. Totzek, F. Feb. 16, 1928. Coke ovens.-The heating-wall of a verticallyflued coke oven is built up of T-shaped bricks c alternating with stretcher bricks a. The limbs b<1> of the bricks c may extend right across the hollow wall to form the heading-flue partitions, or shortlimbed bricks may be used, the partition being then completed by blocks b<2>. Preferably the limb portions are rounded on to the heads of the bricks, which may be of the same dimensions as the stretcher bricks a.
Patent GB-555532-A (GB)
Title: Licker grinder
IPC: B24B19/18
Filed: 1942-04-15
Abstract: 555,532. Grinding-machines. LEHMAN, J. F. April 15, 1942, No. 4974. Convention date, April 12, 1941. [Class 60] A machine for grinding the spirally-wound wire on a licker cylinder comprises an adjustable, motor-driven, bevelled grinding wheel mounted on a carriage travelling on a track parallel with the axis of the cylinder, and a pair of grinding rollers engaging between the rows of wire and mounted on a spring- influenced slide supported by the carriage. The grinding wheel 45 is carried on a motordriven shaft 47 mounted in a sleeve 49 which can be adjusted axially by a handle 53 operating a projection 51 in a recess 50 in the sleeve ; the sleeve is clamped in its adjusted position by bolts 54. The upper part of the carriage is adjustable transversely by a hand-operated screw 44 with respect to the lower part which is mounted by ball-bearing wheels on the tracks 24, 25. The cylinder 13 is mounted on bearings 14 on a guide 16 one end of which is adjustable to ensure parallelism with the tracks. The grinding wheels 66 are mounted in a yoke 65 the stem of which rides under spring influence in a casing 63 mounted on the carriage.
Patent GB-120333-A (GB)
Title: Improvements in or connected with Water-cooled Exhaust Silencers for Internal Combustion Engines of Motor-boats and the like.
Inventor: LANGDON ALFRED GEORGE
IPC: F01N13/00
Filed: 1918-03-21
Abstract: 120,333. Langdon, A. G. March 21, 1918. Exhaust-silencers.-A water-cooled silencer for motor-boats &c. consists of a spherical body a with a domed water-jacket b having perforations e for spraying water into the exhaust. The exhaust enters through an inlet and passes through and around a deflector h to the outlet i, j, a drain hole k being provided for the water. The inlet pipe f is fitted with a disk valve m controlled by a spring and having perforations out of line with perforations s, t in the pipe f and a cap o. The valve m serves as a drain for any water getting into the pipe f, and prevents the formation of a vacuum when the engine cools or back-fires. Specification 18744/07, [Class 122, Steam engines], is referred to.
Patent GB-243943-A (GB)
Title: An improved model flying machine
IPC: A63H27/00
Filed: 1925-02-23
Abstract: 243,943. Dehn, F. B., (Berend & Gottschalk). Feb. 23, 1925. Toy aircraft.-A model glider is composed of a wing h and a body c detachably fastened together, the wing comprising a flexible crossbow a to which is attached a load-carrying surface with a tension element g secured to its trailing edge at the mid point f. To assemble' the model, the crossbow a is pressed into a notch b in the upper edge of the front of the body member c, and the tension element g, which consists of a loop of cord or rubber, is then pulled into a notch d on the lower edge of the body; the wing thereby assumes the desired V -shape. Alternatively, the tension member g may be secured in a hole in the body. The position of the wing may be adjusted by providing a number of notches b and holes or notches d in the body.
Patent GB-180021-A (GB)
Title: Improvements in the treatment of oxidised ores of copper
IPC: B03C1/015
Filed: 1921-02-14
Abstract: 180,021. Perkins, W. G. Feb. 14, 1921. Sulphur.-In the treatment of oxidized ores for the formation of magnetic compounds, by heating with sulphur or a sulphide such as pyrites in the presence of steam, sulphur may be formed and collected, as described in Specification 172,101.
Patent GB-780235-A (GB)
Title: Improvements in silencers for the air intakes of carburetters for internal combustion engines
Inventor: CLAYTON LIONEL HERBERT WILLIAM
IPC: F02M35/14
Filed: 1955-02-21
Abstract: 780,235. Intake silencers. GENERAL MOTORS, Ltd. Feb. 14, 1956 [Feb. 21, 1955], No. 5086/55. Class 7(2) [Also in Group XXVIII] In a silencer including resonator chambers, an air pipe 18, 27 having a bend intermediate the ends thereof lies wholly within the casing 1 of the silencer and communicates with the chambers; the ends of the pipe respectively open into a vertical wall and a horizontal wall of the silencer. As shown; the cylindrical casing 1 includes a domed part 2, a dished, lower, end wall 5, and an annular plate 6 provided with a downwardly extending flange 7 to which is attached the casing 8 of an oil-bath air-cleaner, the outer casing 9 of the cleaner being secured to the casing 8 by means of interengaged screw-threaded portions 10, 11 of central tubular parts 12, 13 of the two casings. Interposed between flanged portions of the parts 12, 13 is a sealing washer 14, and the lower end of the part 13 is closed by a cup-shaped member 15 carrying a nut 16 by which the silencer is secured to a mounting bracket. The wall 5 is formed with a central, flanged aperture 17 in which is fixed a straight pipe 18. and spaced above the wall are annular walls 19, 23 forming resonator chambers each communicating with the pipe 18 by way of openings 20, 26. Secured to the upper end of the pipe 18 is a curved pipe 27 the upper end of which terminates within and intermediate the ends of a pipe 29 adapted to be connected to the air intake of an I.C. engine and secured intermediate the ends thereof in the domed casing part 2. The space between the wall 23 and the part 2 constitutes a further resonator chamber which is in communication with the upper end of the pipe 27 by way of the pipe 29.
Patent GB-734708-A (GB)
Title: Improvements in or relating to microwave electron discharge devices
IPC: H01J25/48
Filed: 1953-02-24
Abstract: 734,708. Space charge wave tubes. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. Feb. 24, 1953 [Feb. 25, 1952], No. 5087/53. Class 39 (1). In a space charge wave amplifier utilizing two separate electron beams having different average velocities the output wave retarder 6 is so dimensioned and maintained at such a potential as to function as a travelling wave amplifier. It is shown that the wave retarder 6 must be at a relatively high positive potential, e.g. 2000 volts, as compared with say 300 volts on the input circuit 4 and 50 volts difference between th cathode voltages, the voltage of K1 being taken as zero potential; also, 6 must be longer than 4. The beams 1, 2 may be parallel or concentric. Wave reflections may be minimized by wedge-shaped rods 8, 9 of ceramic loss material, and the diameters of the helices 4, 6 may be increased, preferably gradually, at their facing ends. The pitch of the output helix 6 may be made smaller at the beam entry point than elsewhere. The helices may be replaced by other wave-retarding " networks." Specification 664,253 is referred to.
Patent GB-219894-A (GB)
Title: Improvements in or relating to the valves of internal combustion engines
IPC: F01L1/20
Filed: 1924-02-28
Abstract: 219,894. Newton, N. B. Feb. 28, 1924. Regulating. - An adjustable tappet head g screwed on to the valve stem is locked in posi. tion by serrations g' thereon engaging similar serrations h<1> formed on a locking-member h engaging a square or other formation f on the valve stem to prevent rotation. The serrations may be replaced by balls and sockets or pegs and holes.
Patent GB-482685-A (GB)
Title: Self-balancing dynamic systems
IPC: F16F15/32
Filed: 1937-02-20
Abstract: 482,685. Centrifugal machines. HYDRAULIC BRAKE CO. Feb. 20, 1937, No. 5140. Convention date, Feb. 20, 1936. [Class 23] A rotating body, such as the drum of a centrifugal machine, has a yielding bearing and when the body is unbalanced so that its axis is displaced the balance is restored by the movement of an associated mass operated by means of rollers brought into action by the displacement. The drum 20, Fig. 1, is driven from the shaft 26, which is journalled in a bushing 25 in a spherical bearing 23 on the base 22. The front bearing 33 on the frame 30 has a rubber sleeve 32 the compression of which can be varied by adjustment of the collar 31. A head block 34 is screwed on the end of the shaft 26, and has an extension 35 to support the drum 20 ; it also has two journals at rightangles, on each of which is mounted a pair of bevelled rollers 36, normally just clear of two conical surfaces on a track 38 carried by the frame 30. When the drum is unbalanced one or two of the rollers 36 engage the conical surfaces with a rolling contact. The track 38 is constructed of fibre or of moulded composition. Two spindles 42 are threaded through the members 36 and their outer ends are secured to shoes 88 kept in their correct positions by nuts 89. These shoes carry a heavy steel ring 86 gripped by a retaining plate 91. When the balance is disturbed and the rollers 36 engage the track, at least one of the spindles 42 is moved axially and the ring 86 is moved to restore the balance when the engagement of the rollers with the track is broken. In the modification shown in Fig. 3, the driving shaft 43 is vertical and a step bearing 46 is provided at its lower end. The rubber sleeve 51 on the top bearing is compressed between the flange on the bushing 49 and the nut 59, and it rotates with the shaft. The drive shaft 43 terminates in a flange bolted to a cup-shaped bracket 55 secured to the drum 20. This bracket supports the two threaded spindles 54 which carry the balancing ring 86; each of these spindles 54 has one end threaded through the bracket 55 and has a worm wheel secured to its other end to engage a worm 59 driven by a roller 53. The roller engages the inner or outer wall of a channel track 60 when the balance of the drum is upset. In another modification both ends of the spindles 54 are threaded through the bracket, and have spiral gear teeth on their central portions so that they can be rotated by spiral gear pinions driven by the rollers. A modified form of front bearing is shown in Fig. 15, in which a collar 109 on the shaft has a coned surface fitting snugly against a surface on a sleeve 110 held against it by a spring 113. These parts are supported by a thrust ball bearing 115.
Patent GB-1237606-A (GB)
Title: Process fpr transferring particle images from photopolymerized image-bearing layers
IPC: G03F7/28
Filed: 1969-01-30
Abstract: 1,237,606. Photographic transfer process. E. I. DU PONT DE NEMOURS & CO. Jan.30, 1969 [Jan.31, 1968], No. 5140/69. Heading G2C. A photographic transfer process comprises either (a) exposing uniformly a photo-polymerizable material insufficient to polymerize it and then imagewise exposing to produce a polymer image or (b) imagewise exposing to produce a polymer image and then uniformly exposing so that the remaining areas are not polymerized, developing by applying particles which adhere to the unexposed areas, placing a receptor in contact at 110-100C. and removing the receptor with the particle image at that temperature; the photo-polymerizable material comprising a support and a layer containing an addition polymerizable monomer, a photo-initiator and a thermoplastic binder. This layer may be coated with a transparent layer which is removed before development. The preferred developers are pigments dispersed in cellulose acetate. The unpolymerized areas as well as the particle image may be transferred to the receptor sheet.
Patent GB-703424-A (GB)
Title: Improvements relating to battery charging arrangements
Inventor: HARVEY ROBERT ANTONY
IPC: H02J7/00
Filed: 1951-03-05
Abstract: 703,424. Charging and discharging batteries ; substituting sources in service. CHLORIDE ELECTRICAL STORAGE CO., Ltd. Feb. 14, 1952 [March 5, 1951], No. 5235/51. Class 38 (4) A secondary battery charging arrangement comprises a time switch 7, 12, 14 arranged to give periodical electric impulses to energize a relay 6 which, by closure of its contact 5, initiates a full rate charging period from a source shouldthe battery be calling for charge, and a relay 9 which is sensitive to battery voltage such as to operate when the battery reaches a substantially charged state to open the circuit through the maintaining contact 8 of relay 6 thereby to stop the charge, which charge can be restarted only on the receipt of a further impulse from the time switch. As shown embodied in aft arrangement for maintaining the charge of pasted plate batteries which are not in use, the batteries 2a, ... 2e each have in turn a charge applied through a distributer 13 actuated in phase with the time switch. In another embodiment a load is connected directly across a battery, which battery similarly receives full charging rate at timed periods, and may also receive a continuous low rate of charge through a resistor which shunts contact 5.