baber/WOPTO huggingface dataset:
Patent GB-369682-A (GB)
Title: Improvements relating to piles and pile driving
IPC: E02D5/52
Filed: 1931-01-05
Abstract: 369,682. Piles and pile - driving. ROTINOFF, A. G., Regent House, Kingsway, London. Jan. 5, 1931, No. 342.. Addition to 335,620, [Class 68 (ii), Subaqueous buildings &c.]. [Class 68 (ii).] In a modification of the method of pile-driving described in the parent Specification, the pile shaft sections are threaded on to the mandrel prior to driving by lowering the mandrel c into a section e, suspending it from the top of the mandrel bv means of a chain or rope a, raising both mandrel and section, lowering on to a further section f, and repeating the operations until the desired number of sections are in place. The threading is accomplished by a unit comprising a housing b, connected to the mandrel c and having a hammer m, suspended by a rope o from a crane. When the required length of pile plus an additional section or two is obtained, it is lowered on to. the shoe g. Alternatively the shoe may be detachably held up to the lowest section, or to the mandrel, as by a chain or rope. The rope a is freed before driving is commenced, and is used to remove any exposed sections with the mandrel when driving is completed. The mandrel may be made in sections, the first being driven with its sections thereon and the second,. also with its sections, secured thereto and driving continued. The anvil n, above the top pile section, is adjusted axially as in the parent Specification.
Patent GB-660830-A (GB)
Title: Phonograph apparatus
IPC: G11B17/16
Filed: 1949-01-06
Abstract: 660,830. Record changers. PHILCO CORPORATION. Jan. 6, 1940. [Jan. 7, 1948] No. 392/49. Class 40 (ii). A spindle for an automatic phonograph includes an upper offset extension 13 adapted to support a stack of records to be dropped onto a turntable one by one by lateral displacement of the lowest, a member 20 mounted to slide on the extension between a position in which it prevents dropping of all but the lowermost record and a position in which it permits upward movement of a stock along the full length of the spindle and means embracing the extensions and overlying the member to guide it during its displacement. The extension 13 of the spindle passes through the centre holes of the records, the lowermost record resting on a, ledge 14 on the spindle. The sliding member 20 is loosely held in a groove 18 in the spindle by a removable retaining sleeve 17 and normally rests with the upper end face 22 of a cut-out portion 21 abutting a stop 24. When the stack of records is removed the slide 20 is pushed into the position shown by broken lines where it cannot interfere with their movement. The stop 24 is removable through hole 25 which is normally closed by an indentation 27 on the sleeve 17. Specification 561,979 is referred to.
Patent GB-1300211-A (GB)
Title: Extruder crossheads
IPC: B29C48/09
Filed: 1970-01-05
Abstract: 1300211 Extrusion mandrel clamp NRM CORP 5 Jan 1970 [24 June 1969] 395/70 Heading B5A In the extrusion coating with plastics of a pipe, cable or hose C, an extrusion crosshead mandrel 30 is releasably clamped at a tapered surface 31 thereof to a complementary surface 10, of the crosshead body 8, by a pair of arms 19 which are pivoted at their lower ends at 20 on the body 8, and each engage the mandrel 30 laterally with a pin 27 carried intermediate their ends of the arms 19 and which is spring loaded into sliding engagement within a vertically extending mandrel slot 29, the clamping action being effected by a swing bolt 21 spanning between the upper ends of the arms 19 and actuated by a nut 24 locating within a die body slot 26. The pins 27 are manually retractable from the slots 29 by a handle 35, against springs 28, and secured in this retracted position, to permit removal of the mandrel 29, by threaded engagement of a handle spindle in a plate 33. An inner extrusion die and core guide 37 is carried by a sleeve 36 which is axially slidable through the mandrel 30 for axial adjustment of the guide 37 with respect to an outer die 15, the adjustment being effected by a pair of levers 42 which are each pivoted at 41 at their lower end to a crosshead body plate 40, and each engage the mandrel intermediate their ends at a pin (45), Fig. 3 (not shown), which is vertically slidable at one end along a vertical lever slot and at the other end fits in a circular sleeve recess, the levers 42 at their upper ends being engaged, to advance the sleeve 36 through the mandrel 30, by a nut 48 on a threaded spindle 47 carried by the mandrel 30, retraction of the sleeve 36 being effected by the melt pressure within the crosshead, or by a further nut (not shown) carried by the spindle 47 on the opposite side of the levers 42. The inner die 37 is threaded to the sleeve 36, engagement and disengagement being effected by a tool complementary in surface to a tapered inner die surface and axially directed bores 38 thereof. The plastics material from the extruder barrel 4 enters the crosshead at 9 to be divided by a radially projecting mandrel rib 62 for flow around each side of the mandrel 30 and is guided by curved mandrel shoulders 34, the flow around the mandrel 30 being equalized by a ring 12, located by a pin 67 and defining a flow passage boundary which is concentric with the mandrel 30 around the lower half thereof, but is eccentric with respect to the mandrel 30 and of greater dimensions around the upper half thereof, the die 15 in addition being radially adjustable by screws 16, and an adjustable bleedoff passage 52 also being provided for the commencement of, and during extrusion.
Patent GB-769292-A (GB)
Title: Improvements in and relating to ion generating apparatus
Inventor: STARLING PHILIP PERCY
IPC: H01J49/12
Filed: 1948-01-06
Abstract: 769,292. Heavy-ion-beam tubes. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 6, 1949 [Jan. 6, 1948], No. 448/48. Class 39(1). An ion-source unit for an electromagnetic isotope separator has all the necessary electrical leads and cooling conduits carried through vacuum-tight seals which are external to the separator when the unit is mounted thereon. The complete double-source unit is shown in the figures of which Fig. 1a is a section of half the unit, Fig. 4 is an outside view of the unit mounting plate and Fig. 5 is a larger view of the right-hand end of 58, Fig. 1a, with a continuation beyond point 59. The arc block 36 and its ancilliary parts are carried by ceramic insulator 3 which is passed through wall mounting plate 1 by clamped seal 4, 5 ; and within tube 3 pass all the various electrical leads 82, 91, Fig. 5, and fluid cooling pipes 46, 49, which are dispersed within casing 58 to various exit points as shown in that Figure. Each ion beam is controlled by two graphite electrodes, the outer one 97 being fixed and mounted conductively on the wall 1 by water-cooled support 98, and the inner one 96 (which has the smaller aperture) being adjustable laterally by bending forces applied to its mounting insulator 114 by strut 140. Complete details are given, of which those of particular interest are : (a) the material to be ionized is vapourized in oven 22, Fig. 1a, heated by tubular heaters 23, a resistance thermometer 19 and a thermocouple (not shown) being provided, (b) the graphite arc block 36 has two arc chambers as described in Specification 769,291, slides on locating pins 41, and has another thermocouple ; electrons from filaments at the end of each arc chamber 48 pass along the chamber (perpendicular to the paper in Fig. la) to ionize the vapour, (c) cooling water is circulated around the outside of the source unit by pipes 46, Fig. 5, which also serve to cool the insulator 3 and are secured by flexible pipes 74 to outlets 81, (d) the four leads 49 to heat the filaments are concentric tubes for water cooling and are brought out to bus-bars 69, Fig. 5, conductors of like polarity being joined in a common cooling circuit by rubber tubes 71, Fig. 4, (e) the struts 140 have threaded ends 139, Fig. 4, which enter worm wheels 135 driven by worms 133, rotation of the worms thus causing the struts to move towards or away from fixed support 131, Fig. 1a.
Patent GB-370446-A (GB)
Title: Wall plate for improving the acoustic properties of buildings
IPC: E04B1/84
Filed: 1931-01-06
Abstract: 370,446. Nonconducting coverings for sound. BAMBERGER, J. J., 56, Whitcomb Street, Leicester Square, London. Jan. 6, 1931, No. 484. [Class 64 (ii).] A wall plate for improving the acoustic properties of buildings, and formed before application to the wall, is composed of sound-absorbing or other plaster 14 with a canvas or like strengthening layer 11, and is concave on its face 12 which is directed towards the wall. The concavity of the plate may have a circular periphery 13, with flat extensions 16 with a rectangular periphery 17, so as to enable the plate to be anchored to the wall. The strengthening layer may extend to the rectangular periphery of the plate.
Patent GB-1497712-A (GB)
Title: Pumps
IPC: F04B43/107
Filed: 1975-01-06
Abstract: 1497712 Reciprocating pumps M Y VERGNET 6 Jan 1975 486/75 Heading F1A A pump, e.g. for pumping water from a well, comprises a rigid-walled chamber 101 having an inlet valve 102 and an outlet valve 103 and immersed in the water to be pumped, and a resilientwalled chamber 105 mounted within chamber 101, either chamber 105, as shown, or chamber 101  communicating via pipe 106 with a cylinder 107 in which a piston 108 is reciprocated to cause expansion and contraction of chamber 105 and thus pumping of water via valves 102, 103 to delivery pipe 104. A connection 110 between pipes 106 and 104 has a check-valve 122 permitting entry of water from pipe 104 into pipe 106 to form a liquid column between piston 108 and chamber 105, cylinder 107 having an air bleed port 123. In Figs. 3 and 4 (not shown), the rigid chamber communicates with the actuating cylinder and a spring- loaded, resilient chamber communicates with the inlet and outlet valves (112, 113). In Figs. 5 to 8 (not shown), the rigid chamber (13), e.g. of plastics, is suspended by a cable (44) in a well shaft, and receives a tubular, resilient chamber (14), e.g. of rubber, with side wall reinforcement of spiral nylon threads to permit axial expansion of the chamber and limit radial expansion. The resilient chamber has end caps secured by crimping, Figs. 9 to 11 (not shown), the upper end cap having a threaded connection with a detachable end cap (24) of the rigid chamber containing the outlet and connecting check-valves and connected to the delivery pipe (8) and a pipe (11) communicating with the actuating cylinder (12). The cylinder (12), cable (44) and delivery pipe (8) are connected to a mounting plate (32) at the surface. The wall of the resilient chamber alternatively may be reinforced by integral annular projections (52), Figs. 10 and 11 (not shown), which may have metal rings (53), (54) crimped thereto or enclosed therein.
Patent GB-841628-A (GB)
Title: Method and apparatus for generating a frequency-modulated electrical oscillation
IPC: H03C3/18
Filed: 1957-01-04
Abstract: 841,628. Frequency modulation. DIRECTIA GENERALA A RADIODIFUZIUNII. Jan. 4, 1957 [Jan. 4, 1956], No. 501/57. Class 40(5). The frequency of an oscillator 1 is modulated by winding the inductance 2 of the frequency determining tuned circuit on a hydrogen filled discharge tube 3, and varying the D.C. current through the tube by a valve 6, to the grid of which the modulating signal is applied.
Patent GB-492580-A (GB)
Title: Improvements in or relating to devices for forming or bending wound springs
IPC: B21F3/04
Filed: 1938-01-07
Abstract: 492,580. Making springs. TORRING- TON MANUFACTURING CO. Jan. 7, 1938, No. 529. Convention date, Oct. 26, 1937. [Classes 83 (ii) and 83 (iv)] In a machine for severing and bending the end of a spring to the shape shown in Fig. 9, four dies mounted on a conical head are successively advanced in radial guides by cams which surround the wire holding means. A die 31 is moved to the position shown in Fig. 5, and a die 32 then shears the wire against a guide 28 and co-operates with the die 31 to bend the tail S<1>. The die 31 remains in position and a die 34 is advanced to engage the wire and a die 33 is moved to bend the spring end about the die 34, Fig. 8. The dies are carried in a radial guide in a head 9 angularly adjustable in a casing 3 which is vertically adjustable in a frame 2 by screws 6. The dies are reciprocated by cams 18, 19, 20, 21 on a member rotated from a power drive 23. Each cam actuates a crank 43 on a shaft 41 carrying a crank 40 engaging a slide 38. The dies are adjusted in the slides by screws 47.
Patent GB-544792-A (GB)
Title: Improvements relating to portable engine-driven pumps
IPC: A62C25/00
Filed: 1941-01-15
Abstract: 544,792. Fire-engines. COVENTRY CLIMAX ENGINES, Ltd., and HATHAWAY, L. Jan. 15, 1941, No. 546. [Class 47 (ii)] In a portable engine-driven pump, particularly for fire-fighting purposes, the pumping unit comprising an internal-combustion engine and a centrifugal pump is enclosed in a casing 12 with the pump at the rear, its inlet 14 being disposed centrally of its volute casing 13, as is usual, but its outlets are at the side, being provided with flanges 15 to which are 'bolted flanges of plain angle-bend pipes 16 connected to flexible pipes 17 running forwardly alongside the unit. The forward ends of the pipes 17 are engaged in the normal outlets 18 supported by a bracket 19, and may be connected to lengths of hose, or, as shown, to a breeching-piece 22. The flanges 15 are at different levels, and are also on opposite sides of the central plane of the volute chamber, which is divided by a central partition. The control valves are disposed in the elbow pipes 16, and their actuating wheels 21 are at one side of the unit, so that the man in charge is not in the way when a change of hose is made, and is not in danger should the unit work backwards. Specification 544,791, [Group XXXII], is referred to.
Patent GB-412992-A (GB)
Title: Improvements in the manufacture and production of disazo dyestuffs
IPC: C09B35/18
Filed: 1933-01-07
Abstract: Disazo dyes fast to vulcanization are made by coupling tetrazotised o-dianisidine (1 mol.) with 2 mols. of a 1-phenyl-3-methyl-5-pyrazolone containing at least one alkyl group in the phenyl nucleus.  They are suitable for colouring rubber, celluloid and products capable of being hardened obtainable by condensation of phenol and urea, formaldehyde and urea, or formaldehyde and casein in yellow-red shades.  The dyes are insoluble in benzene and rubber.  In an example, 1-(4<1>-methylphenyl)-and 1-(2<1> : 4<1>-dimethylphenyl) - 3 - methyl - 5 - pyrazolones are specified as components.  The Provisional Specification refers to the use of homologues of 1 - phenyl - 3 - methyl - 5 - pyrazolone as coupling components.ALSO:Rubber, celluloid and products capable of being hardened obtainable by condensation of phenol and urea, formaldehyde and urea and formaldehyde and casein are coloured in yellow-red shades with disazo dyes made by coupling tetrazotised o-dianisidine (1 mol.) with 2 mols. of a 1-phenyl-3-methyl-5-pyrazolone containing at least one alkyl group in the phenyl nucleus.  The Provisional Specification refers to the use of homologues of 1-phenyl-3-methyl-5-pyrazolone as coupling components.
Patent GB-1337091-A (GB)
Title: Aluminium recovery method
IPC: C22C1/02
Filed: 1972-01-06
Abstract: 1337091 Recovering aluminium ALCAN RESEARCH & DEVELOPMENT Ltd 6 Jan 1972 [8 Jan 1971(2)] 708/72 Heading C7D Al is recovered from a material which contains a mixture of Al and non-metallic compounds, e.g. dross, glass cloth filters, in an induction furnace 10 in the presence of a salt flux. A heel of molten Al is first formed in the furnace, to which is added at least half the flux followed by the Al-bearing material, the temperature being maintained preferably between 750C and 825 C. Currents 14 formed by the coil 12 cause the flux to form a layer 17 outside the metal 16. When the power is switched off, the flux floats to the top and can be skimmed off. Some metal is also removed, leaving sufficient to form a heel for a subsequent operation. The salt flux is preferably a mixture of chlorides and fluorides of Group I and II elements, e.g. 45% KCl-50% NaCl-5% NaF, the ratio by weight of flux to non-metallic compounds being preferably in the range 1:1 to 2:1. Al alloys can be separated in the same way. If desired, dross can be treated which has been crushed and screened.
Patent GB-1022930-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/18
Filed: 1965-01-07
Abstract: A red-emitting europium-activated gadolynium oxide is used in the screen of a cathode-ray tube for the display of colour images. The europium may be present in the range 0.5-3 mole per cent.
Patent GB-561419-A (GB)
Title: Improvements in winnowing devices
IPC: B07B13/00
Filed: 1943-01-19
Abstract: 561,419. Drying and separating grain &c. NEWMAN, J. E., and KENNEDY, D. S. Jan. 19, 1943, No. 969. [Class 34 (ii)] [Also in Group II] Apparatus for separating grain &c. from dust, chaff, broken leaves, &c., consists of a chamber f into which the grain is carried in a stream of air by a pipe e<1> ; the grain falls out of the stream as the result of its decreased velocity, to the bottom of the chamber, while the lighter material is carried off by the outlet f<1> and pipe i which may be provided with a device for removing it from the air stream. Along the top of the chamber is provided a passage h with a perforated screen g against which the incoming stream impinges. The outlet end h<1> of the passage joins the outlet f <1> of the chamber, and is provided with a flap valve so that the velocity of the air stream in the chamber can be regulated while maintaining a substantially constant volume passing into and out of the device. The device may be fitted to the top of a grain drier as described in Specification 523,391.
Patent HK-39588-A (HK)
Title: Elongate electrical assemblies
Inventor: MIDGLEY JOHN ARTHUR
IPC: H05B3/10
Filed: 1988-05-26
Abstract: Elongate electrical devices, comprising two conductors with electrical elements connected in parallel between them, have improved performance if the power supply is connected to one conductor at the near end and to the other conuuctor at the far end. Particularly useful devices are heaters, e.g. PTC conductive polymer heaters. The power supply is connected to the far end of the device through a connection means whose electrical properties can be correlated with those of the device in order to obtain a wide range of useful results. For example the connection means can have PTC, NTC or ZTC character and can be a simple conductor or another elongate device. The power supply can be DC or single-phase, two-phase or three-phase AC. A circuit of the invention is shown in Figure 3.
Patent HK-91888-A (HK)
Title: Improvements in and relating to testing coins
Inventor: RAPHAEL PAUL STEPHEN
IPC: G07F/
Filed: 1988-11-10
Abstract: A coin testing apparatus comprises transmitting and receiving coils (14) and (15) on opposite sides of a coin passageway (11). The transmitting coil is connected to high and low frequency oscillators (16) and (17). The output of the receiving coil is separated into the high and low frequency components by a high pass filter (21) and a band pass filter (22). In the high frequency channel the signal is amplitude controlled by a voltage controlled amplifier (23) rectified by a rectifier (24) and smoothed by a long time-constant circuit (26). The initial rise in level caused by a coin entering between the coils (14) and (15) is detected by an instantaneous level change comparator (32) which responds to the rate of change of signal level at the output of the long time-constant circuit (26) becoming equal to preset threshold and causes a normally closed switch (27) to be opened. When the switch (27) is closed a comparator (31) compares the signal with a reference value from a source (30) and adjusts the gain of the amplifier (23) until the signal corresponds to the reference value. Upon the arrival of the coin the switch (27) is opened and a long time-constant circuit (28) causes the gain of the amplifier (23) to be maintained at the level before the arrival of the coin. A window comparator (33) compares the difference in voltage with voltage ranges for acceptable coins. A similar arrangement is provided in the low frequency channel but with two differences. The switch (27) in the low frequency channel is operated by the same instantaneous level comparator as is used for the high frequency channel and instead of a rectifier (24) a novel sample and hold technique is used for providing a d.c. signal from the output of the amplifier (23).
Patent JP-S62159779-A (JP)
Title: Fluid pump
Inventor: EBIHARA YOSHIO
IPC: F02M37/08
Filed: 1986-01-07
Abstract: PURPOSE:To prevent brushes of a motor from vibrating in a device where the motor and a motor-driven pump are arranged in series each other in the direction of gravity by arranging a core of an armature displaced in the axial direction relative to a magnet in the motor. CONSTITUTION:A fuel pump 1 consists of a motor part 10 and a pump part 20. On the inner circumference of a motor housing 11 of the motor part 10 are oppositely arranged paired magnets 12 with an armature 13 rotatably housed in the housing. The armature 13 consists of a shaft 131, a core 132 mounted on the shaft 131, and a commutator 133 arranged adjacently to the core 132. And the armature 13 is so arranged that the center line CL1 of its core is displaced from the center line CL2 of the magnet 12 by a specified amount ltoward the side of the pump 20. This makes a force to be exerted on the armature 13 toward the side of brushes 15, serving intended purpose.
Patent JP-S5385483-A (JP)
Title: Two luminous flux spectrophotometer
Inventor: TOOYAMA YOSHIO
IPC: G01J3/42
Filed: 1977-01-07
Abstract: PURPOSE:To obviate the occurrence of the steps of recording curves by changed wavelength in a two luminous flux spectrophotometer by correcting the measured value after changing over with the guotient of the measured values before and after optical element changing.
Patent JP-H053362-A (JP)
Title: Ridged waveguide type semiconductor laser
Inventor: KOIZUMI YOSHIHIRO
IPC: H01S5/00
Filed: 1991-01-08
Abstract: PURPOSE:To suppress the spreading of an electric current in an optical waveguide layer so as to reduce the oscillation threshold of the layer by giving a semi-insulating property to the optical waveguide layer by adding an impurity which forms a deep level to the optical waveguide layer. CONSTITUTION:A double hetero-structure composed of an active layer 12, optical waveguide layer 13, and semiconductor 14 of the second conductivity type having a wider inhibition band width than the active layer 12 has is formed on a semiconductor substrate 10 of the first conductivity type or on a semiconductor substrate of the first conductivity type on which a semiconductor layer 11 of the first conductivity type having a wider inhibition band width than the active layer 12 has is provided. A ridged waveguide structure having no semiconductor layer is formed on the optical waveguide layer 13 at parts of both side faces of a light propagating area 20 and in the area 20. Then a semi-insulating property is given to the layer 13 by adding an impurity which forms a deep level for catching numerous carriers of the second conductivity type to the layer 13. Therefore, this semiconductor laser having a low threshold current value can be obtained at a high yield, since no electric current is spread in the layer 13.