baber/WOPTO huggingface dataset:
Patent GB-502814-A (GB)
Title: By-pass apparatus for signalling systems in which carrier current signalling is effected over low frequency signalling circuits
IPC: H04J1/10
Filed: 1937-09-24
Abstract: 502,814. Multiplex transmission. STANDARD TELEPHONES & CABLES, Ltd., ROSEWAY, W. N., and WRIGHT, F. C. Sept. 24, 1937, No. 25950. [Class 40 (iv)] A low-frequency line to which are connected a number of wayside stations is employed for high-frequency signalling, each wayside station being byepassed by a high-pass filter HPF. The low-frequency apparatus at each station is connected between two parts of a low-pass filter LPF which can be connected, by switches SW1, SW2, to the line or to an artificial line CN.
Patent GB-224244-A (GB)
Title: Improvements in keyboard and differential mechanism for cash registers or calculating machines
IPC: G06C7/10
Filed: 1923-12-27
Abstract: 224,244. Shipley, B. M. Jan. 2, 1923, [Convention date]. Cash registers with operating-means; differential mechanism ; printing totals. - In a key-set machine two banks of differential mechanism effecting the selection for actuation of the totalizers are controlled by a single bank of keys. The invention is described as applied to a machine for registering bank deposits and withdrawals and having two banks of withdrawal and deposit keys with their respective differential mechanisms, and also having a keyless " balance " bank, the differential mechanism of which controls the position of the adding and subtracting totalizer. The latch of the balance differential mechanism may break at one of four positions, namely at 0 for subtractions, at 5 for total-taking, at 7 for the totalizer to receive the old balance, and at 9 to receive the deposit. The zero trip pawl 112 for this bank is withdrawn whenever a key in the deposit bank is depressed, and in consequence the totalizer is shifted from its normal subtracting position, in which on the other hand it remains when the withdrawal keys are operated, This disablement of the balance zero trip pawl is effected by the connections shown in Fig. 8, wherein the shaft 280 of the deposit zero trip pawl is provided with a fast arm 281 engaging a pin 282 to produce corresponding retractive movement of the balance zero trip pawl. Depression of the " old balance " key in the deposit bank also positions an arm 268 (Fig. 4) in the path of the balance latch to cause this to break at 7, this key having a pin controlling the arm by means of a bifurcated arm and yoke 269. When a deposit key 301 or 302 is depressed, the latch breaks in the 9 position, being tripped by the contact with a stud 271 of the horizontal arm of the lever 273 pin-and-slot connected to the latch at 272. When the new balance is required, the total lever is adjusted accordingly, and a lug 275 carried by the lever is moved away from pin 276 so that this is drawn by spring 270 into the path of movement of the vertical arm of lever 273 to break the latch at 5. Specifications 8119/15 and 221,833 are referred to.
Patent GB-1161978-A (GB)
Title: Semiconductor Integrated Circuit including a Bidirectional Transistor and Method of Making the Same
IPC: H01L27/06
Filed: 1968-05-30
Abstract: 1,161,978. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 30 May, 1968 [15 June, 1967], No. 26006/68. Heading H1K. In an integrated circuit bidirectional transistor of the type where an N+ type semiconductor region 12 is disposed in the surface of a P-type semi-conductor substrate 10, and an epitaxial layer of N-type semi-conductor extending over the substrate has a collector region 14a enclosed by a P+ type isolation wall 28 extending through the epitaxial layer to the substrate, a P-type base region 26 and an N+ type emitter region 30, the distance of the basecollector junction from the N+ region 12 is less than half the thickness of the epitaxial layer. Contact to the collector is made via a region 32 of lower resistivity than the collector itself and similarly connection to the base is made via a region of lower resistivity than the base. The semi-conductor is silicon, and the impurities used are arsenic and phosphorus, boron being used to dope the substrate. A passivating layer 36 of silicon dioxide or glass covers the surface of the device and contacts 40, 42, 44 to the transistor regions are made of aluminium.
Patent GB-866473-A (GB)
Title: Improvements in or relating to stabilized platform systems for vehicles
Inventor: BOND GORDON VALLANCE
IPC: G01C21/18
Filed: 1956-08-24
Abstract: 866,473. Self-levelling arrangements. ENGLISH ELECTRIC CO. Ltd. Aug. 20, 1957 [Aug. 24, 1956], No. 26036/56. Class 113. A stabilised platform system comprises a fluid-containing chamber 10 within which a platform 11 is completely immersed in the fluid 12, the platform being susbtantially neutrally buoyant in the fluid so as to be substantially wholly supported thereby and, wherein the platform is located with respect to the chamber in a manner to allow it at least one degree of rotational freedom relative thereto by a bearing 13 which provides a pivotal location for the platform and which is carried by at least one support arm 14 attached to the structure of the chamber. The fluid is preferably liquid, and may be heated. If gas is used it must be at high pressure to have sufficient density. The attitude of the platform is stabilised by a fluid jet reaction control system 16 mounted on the platform.
Patent GB-1112563-A (GB)
Title: Alkali metal aluminium hydrides,methods of making them,reduction methods employing them and polymerization catalysts containing them
IPC: C07C37/07
Filed: 1965-06-21
Abstract: a -olefins are polymerized by conventional low pressure techniques in the presence of a catalyst comprising a compound MAl2H7 where M = alkali metal, a halide of a Group IVB, VB or VIB metal with a valency one less than maximum and, optionally as a third component, an alkali metal hydride or a Group II metal oxide.  Monomers exemplified are ethylene, propylene, butene-1, heptene-1, decene-1, 3 methyl - 1 - butene, 4 methyl - 1 - butene, styrene, a  - methyl - 1 - butene, 4 - methyl - 1 - hexene, 5 - methyl - 1 - hexene, 4,4-dimethyl - 1 - butene, allylcyclohexene allylcyclobutene, allylbenzene; the copolymerization of propylene and butene-1 is described in Examples 14 and 15.ALSO:The invention comprises compounds of the formula MAl2H7 where M is an alkali metal. LiAlH7 and NaAlH7 are exemplified. The compounds of the invention may be prepared by contacting a hydride R2AlH, where R is a hydrocarbon radical free of non-aromatic unsaturation, with an alkali metal hydride MH in molar ratio 2 : 1 to 1 : 2 in an inert solvent at 25-200 DEG  C. under N2 and recovering crystalline MAl2H7.ALSO:Alkali metal dialuminium heptahydrides, MAl2H7 (see Division Cl) may be used as reducing agents in hydrocarbon solution at - 80 DEG  to 150 DEG  C. for the functional groups of ketones, aldehydes, carboxylic acids and esters, nitriles and nitro compounds, usually without reduction of any olefinic double bonds present. Examples of starting materials and products are as follows: .Starting material.Product .Isobutyraldehyde.Isobutyl alcohol .Crotonaldehyde.Crotyl alcohol .Benzaldehyde.Benzyl alcohol .Isobutyl isobutyrate.Isobutyl alcohol .Phthallic anhydride.Phthalyl alcohol .Benzoyl chloride.Benzyl alcohol .Acetone.Isopropyl alcohol .Quinone.Hydroquinone .Cyclohexanone.Cyclohexanol .Nitrobenzene.Azobenzene .Phenylacetonitrile.b -Phenylethylamine
Patent GB-468548-A (GB)
Title: Improvements in or relating to high frequency signalling systems or apparatus
IPC: C03B23/26
Filed: 1936-09-25
Abstract: 468,548. Signalling through dielectric guides. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.) Sept. 25, 1936, No. 26068. [Class 40 (v)] Relates to dielectric " guides " for carrying ultrahigh-frequency currents in various wave-forms, and to means for converting the electric energy from one specified wave - form to another. The " guide " consists of any dielectric, such as air, bounded by a metallic tube which acts as a dielectric " discontinuity " to localize the energy. Different types of waves may be propagated through such a guide. They are distinguished according to whether the electric field lies parallel to the axis, as shown in Fig. 1, in which case they are called " electric " ; or whether the magnetic field is so disposed, as shown in Fig. 3, in which case they are called magnetic waves. There are symmetric and asymmetric waves of both types, as well as waves of the second order. Fig. 9 shows a construction of guide in which internal metallic baffles or pipes 110, 113, 114 (having the progressive cross-sections shown in Fig. 10) are used to convert an asymmetric magnetic wave, generated at the left-hand end of the tube, into a symmetric magnetic wave, by twisting the lines of force appropriately, Figs. 26 and 27 similarly show the construction of a guide for converting a symmetric electric wave to an assymmetric magnetic one ; whilst Figs. 35 and 36 may be used for changing . a symmetric electric into a symmetric magnetic wave. Various other forms of wave-converter are described, in all of which internal baffles engage the travelling lines of force, and gradually deflect and reconnect them in the desired new disposition.
Patent GB-1458788-A (GB)
Title: Polyene compounds
IPC: A23L1/275
Filed: 1975-06-19
Abstract: 1458788 Colouring material F HOFFMANN LA ROCHE & CO AG 19 June 1975 [20 June 1974] 26130/75 Heading A2B [Also in Divisions C2 and C4] Foodstuffs may be coloured with compounds of the formula where one of R' 3  and R' 4  is OH and the other is H, or R' 3  and R' 4  together represent oxygen.
Patent GB-720374-A (GB)
Title: Improvements in high frequency radio amplifiers
IPC: H04N5/44
Filed: 1951-11-08
Abstract: 720,374. Inductors. STANDARD COIL PRODUCTS CO., Inc. Nov. 8, 1951 [March 29, 1951], No. 26208/51. Class 38 (2). [Also in Groups XXIV, XXXVI, XXXVII and XL (c)] In a television amplifier (see Group XL (c)) the tuning coils are printed on insulating discs 140, 141 secured to an insulating sleeve 148 and engaging loop-shaped contacts 161, 162. Fig. 4 shows the printed coils 142, the dotted areas being unprinted.
Patent GB-687097-A (GB)
Title: Improvements relating to multi-cyclone assemblies
IPC: B04C5/28
Filed: 1951-11-09
Abstract: 687,097. Centrifugal separators. HEIN-. RICH. R. F. Nov. 9, 1951, No. 26273/51- Class 23 A multi-cyclone has throttling means 3, 4 and pressure-indicating devices 5, 6 at the cleansed gas outlets 2 of each cyclone 1 or groups of cyclones, the throttling devices being adjusted according to the pressure indicated to prevent inter-circulation between the cyclones delivering dust to a common hopper 8.
Patent GB-1183235-A (GB)
Title: A method for producing L-Glutamic Acid
IPC: C12P13/14
Filed: 1967-06-08
Abstract: 1,183,235. Production of L-glutamic acid. TAKE DA YAKUHIN KOGYO K.K. 8 June, 1967 [8 June, 1966]. No. 26468/67. Heading C2C. L-Glutamic acid is prepared by cultivating a micro-organism belonging to the genus Corynebacterium capable of producing L-glutamic acid and not requiring biotin but requiring at least one C 16-22  unsaturated fatty acid for their growth, in a culture medium containing the unsaturated fatty acid, a carbon source, a nitrogen source and other nutrients, accumulating L- glutamic acid therein and recovering the accumulated L-glutamic acid therefrom. The cultivation is suitably effected at 25-35‹ C. at pH 6À6 to 8À7 for 24-60 hours and the carbon and nitrogen sources and other nutrients may be of the conventional type. The unsaturated fatty acid, which is generally employed in an amount of 50 to 1000 γ per millilitre of the culture medium, may be oleic, linoleic, ricinoleic, arachidoaic, palmitoleic or erucic acid or a salt or ester thereof, and materials containing the unsaturated fatty acids such as lard or olive oil may be employed. In examples the microorganism employed is Corynebacterium sp. No. 186 (IFO-12398).
Patent GB-886928-A (GB)
Title: Improvements relating to dust and like bins
Inventor: MILLS SIDNEY
IPC: B65D25/24
Filed: 1959-08-01
Abstract: 886,928. Dust &c. bins. BRADLEY & CO. Ltd. Aug. 2, 1960 [Aug. 1, 1959], No. 26485/59. Class 26. A dust and like bin of a four-part character comprises sections a, c, a shallow cup-shaped base b closing the lower extremity of the section c and an annular downwardly-protruding supporting flange d, each part being socketed into the nest against a shoulder, e.g. a<SP>2</SP>, and attached by electric seam welding and/or riveting or like form of attachment. The flange d has an inwardly-rolled lower edge d<SP>1</SP> and abuts against a shoulder b<SP>2</SP>. The part a may be of thinner metal than the remainder and has a roll a<SP>1</SP> at the top.
Patent GB-1045808-A (GB)
Title: Limited valve diaphragm compression devices
IPC: F16K7/12
Filed: 1964-06-26
Abstract: 1,045,808. Valves. HILLS-McCANNA CO. June 26, 1964 [July 2, 1963], No. 26575/64. Heading F2V. An elastomeric diaphragm, which may be fabric reinforced rubber, coated with a surface layer of inert fluorocarbon polymer, is connected to an actuator 16 by a moulded-in stud 48 whereby it is seated upon weir 26 under a compression limited by the engagement of an actuator abutment 60, which may be circumferentially continuous or comprise spaced lugs, with a planar ring 56 clamped in a recess between bonnet 20 and body 18. The diaphragm is circumferentially clamped between the ring 56 and a stepped body recess and the clamping and seating compression is limited to less than one half the compression set test value of the elastomeric material. The actuator 16 is displaced with a threaded spindle 38 engageable by a non-axially displaceable sleeve 40 rotated by hand wheel 44.
Patent GB-899774-A (GB)
Title: Process of and apparatus for treating a film of polyvinyl alcohol
IPC: B05D5/08
Filed: 1959-08-04
Abstract: <PICT:0899774/IV (a)/1> A finely-divided adhesion inhibiting agent is continuously applied to the surfaces of a film of polyvinyl alcohol a which is passed upwards through a casing 1 provided with agitators 5 and fans 6 which deliver air currents guided by the adjustable plates 7 and pick up some of the agent 4 and cause it to adhere to both sides of the film a.  The film then passes through the aperture 3 into the casing 8 and through the nips of pairs of rotating cloth puff rolls 9 and 10 and the nip of the pair of rotating seal or artificial fur puff rolls 11.  The agent may be 4 to 13 millimicrons diameter grains of amorphous silica and is rubbed into the surfaces of the film by the puff rolls.  If the silica particles are less than 100 millimicrons in diameter, the transparency of the film is not destroyed by the treatment. Specification 893,523 is referred to.
Patent GB-865868-A (GB)
Title: Improvements in holders for electric devices, such as lamps
Inventor: TURNER LESLIE WILLIAM VICTOR
IPC: H01R33/09
Filed: 1956-08-31
Abstract: 865,868. Lamp-holders. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug..16, 1957 [Aug. 31, 1956], No. 26699/56. Class 38(1). In a holder for a lamp of the type described in Specification 797,441, wherein lead-in wires are bent round a flattened pinch to form contacts located on opposite sides of the pinch at diagonally opposite positions, an insulating body 4 is provided with an elongated lamp receiving opening in which are located V-shaped spring contact members 6. One limb of each contact is formed with a kink 7 adjacent the free end thereof and the contacts are arranged such that when a lamp is inserted in the holder they bear on opposite sides of the pinch 1 to engage the lamp contacts 2, the kink 7 also engaging notches 5 in the pinch to retain the lamp in the holder. The other limb of each contact may be bent over as shown at 6a and bear against an interior wall of the body 4, or may be extended downwardly to form a terminal (Fig. 7, not shown). Fig. 10 shows another construction wherein both limbs of each contact 10 are formed with kinks 13 adapted to engage on opposite sides of the lamp pinch. The holder body may be adapted for attachment to a panel by means of nuts and bolts or by a spring clip. Part of a reflector may also be formed integrally with the holder body or as shown in Fig. 15, a circular body 22 may have a number of longitudinal ribs 23 formed thereon providing an interference fit between the body and the mounting panel hole 24.
Patent GB-681774-A (GB)
Title: Improvements in or relating to warp beaming machines
IPC: D02H3/00
Filed: 1950-11-02
Abstract: 681,774. Beaming machines. REINERS, W. Nov. 2, 1950 [Dec. 5, 1949], No. 26725/50. Class 142(iv) A warp beam is held by two arms mounted on an outer tube which slides longitudinally on an inner tube during beaming and swings about the inner tube to lower the beam for removal. The beam 8 is held by arms 5, 14 on a tube 4, the arm 5 being adjustable along the tube. The tube 4 is supported in the loom frame 3 and also by a roller, on an extension 10 of the arm 5, which engages a member 23. A tube 2, having one end fixed in the loom frame 1, passes inside the the tube 4. The beam is rotated by gears 16-18, a shaft 21 sliding in a driving tube 20, and by a pinion 19. During beaming, the beam is moved longitudinally (by any known means) the shaft 21 sliding in the tube 20 and the tube 4 sliding over the tube 2. A full beam is lowered for removal by rotation of a pinion 11 engaging a toothed segment 9 and which moves the arms 5, 14 to the dotted position shown in Fig. 1.
Patent GB-210482-A (GB)
Title: Improvements in and relating to variable-frequency alternatingcurrent generators
IPC: H02K27/18
Filed: 1922-10-03
Abstract: 210,482. Japolsky, N., and Kostenko, M. Oct. 3, 1922. Alternating-current commutator machines; exciting.-In an installation in which for speed control alternating-current motors are fed with current cf variabe frequency derived from a compensated alternating-current commutator generator driven at constant speed and fed with exciting current of variable frequency and voltage, the commutator generator is constructed without projecting poles in order to enable high periodicities and plain rotating fields to be obtained. In the arrangement shown in Fig. 5, the compensated commutator generator A.C.C.G, which gives variable frequency to the motor AM under control, is driven by a constant-speed motor T which also drives a continuous-current machine D for supplying the exciting group of the generator A.C.C.G. This group comprises a variable-speed motor M, on the shaft of which is the variable-frequency alternating-current exciter WE and its exciter E. The voltage of the exciter WE is proportional to the square of its frequency and the voltage of the generator A.C.C.G is proportional to its frequency. The volts of the generator A.C.C.G. may also be varied independently by means of a resistance r. Alternatively, the exciter E may be driven by the motor AM, in which case the exciter WE is separately excited until the machine E gives the requisite voltage. This arrangement is used when the rotor of the machine A.C.C.G is excited instead of the stator. A square law relationship between the voltage and frequency of the alternating- current exciter mav also be obtained by means of a non-saturated self-exciting alternator running as a rotary converter. Fig. 1 shows a non-salient pole construction of the machine A.C.C.G in which the exciting and compensating windings W
, W<1> are both carried by the stator, but the exciting winding mav alternatively be carried by the rotor with the normal rotor winding which is connected to the commutator. In Fig. 4 a form of winding for the commutator generator is shown in which three-phase variable-frequency exciting current is fed to a twelve-phase rotor winding W<R>, Specifications 28081/10 and 223/11 are referred to.
Patent GB-727690-A (GB)
Title: Improvements relating to the separation of heavy solids from sewage and other liquids
IPC: E03F5/14
Filed: 1952-10-25
Abstract: 727,690. Gravity-separation apparatus. HARTLEY, C. J. Oct. 22, 1953 [Oct. 25, 1952], No. 26838/52. Class 111. Apparatus for separating grit from liquid, e.g. sewage comprises one or more longitudinal grit settlement channels 10 spanned by a travelling gantry 16 carrying pumping mechanism 14, 15, 17 for lifting grit from the channel or channels 10 and delivering it through a pipe 24 to a grit trough 26 and one or more stationary washers 30 into which the grit trough 26 discharges through a duct or ducts 28 and from which washed grit is discharged by the head of water in said washer or washers 30 into a wagon 35 near ground level. The grit t ough 26 runs above and parallel to one of the sides 12 of the channel or channels 10. The washer 30 includes a weir 32 over which lighter material is carried and returned by an overflow pipe 33 to points downstream of the settlement channel or channels 10. Specifications 651,241 and 710,435 are referred to.
Patent GB-1383112-A (GB)
Title: Fluid resistors
IPC: F15C1/02
Filed: 1972-06-08
Abstract: 1383112 Valves S A MORSI 5 Sept 1973 [8 June 1972 2 Oct 1972] 26860/72 and 45378/72 Heading F2V [Also in Division G3] A resistor for gas or liquid comprises body elements 1, 2, Fig. 1, having an inlet 7, a concentric outlet chamber 9 and two parallel surfaces defining a narrow space 6 through which laminar flow is established in use between the inlet and the outlet chamber so that the resistance to flow is substantially constant. Moreover, the junction between the inlet 7 and the associated one of the parallel surfaces is rounded as at (12), Fig. 2 (not shown), to reduce turbulence effects thereat. The resistor may comprise a stack of body elements defining several narrow spaces for parallel flow therethrough, Fig. 4 (not shown). Two body elements may be screwed together so as to be able to increase the width of the space from zero, Fig. 3 (not shown). A scale may be provided to indicate the setting of the width. A temperature-responsive construction is shown in Fig. 7, wherein an annulus 57 is made of a material having a different coefficient of expansion to that of body element 55 so that the width of the space increases or decreases with temperature rise. A somewhat similar temperature-responsive resistor is shown in Fig. 9 wherein a core member 71 has a different coefficient of expansion to body element 69 to cause the width of the space to decrease or to  increase from zero with temperature rise. In a modification of the latter embodiment, the two body elements are screwed together to provide an adjustable temperature-responsive resistor, Fig. 10 (not shown). In another adjustable  temperature-responsive resistor, Fig. 11, a diaphragm 88 is normally clamped against surface 94, but the differential expansion due to temperature rise causes the surface 94 to move away from the diaphragm and thereby provide a flow path to outlet chamber 95, the pressure build up in the latter suddenly pushing the diaphragm upwardly to increase the flow. A fixed restrictor may be located upstream or downstream of the resistor to provide a linear relationship between changes in temperature and pressure. The resistor may be of brass, aluminium, stainless steel or plastics.