baber/WOPTO huggingface dataset:
Patent GB-467963-A (GB)
Title: Improvements in and relating to alternating current dynamo electric machines
IPC: A23L5/10
Filed: 1937-02-03
Abstract: 467,963. Alternating-current motors. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 3, 1937, No. 3207. Convention date, Feb. 4, 1936. [Class 35] An alternating-current motor has two or more stator magnetic circuits each having a plurality of pole-pieces lying in circular formation between the pole-pieces of the other circuit or circuits, the coils of the circuits being supplied with out - of - phase currents. In the form shown, the pole-pieces projecting from plates 14 and 15 are of the same polarity and are interleaved with the pole-pieces of opposite polarity projecting from plates 13, 16 in such manner that there are two North pole-pieces followed by two South pole-pieces all around the circumference co-operating with a hard steel rotor element 30 carried by a non-magnetic cup 29. A condenser disposed between the plates 14, 15 is in series with winding 22. For three phase operation there are three sets of pole-pieces interleaved, three pole-pieces of one polarity being followed by three of the opposite polarity.
Patent GB-852712-A (GB)
Title: Improvements in or relating to activation of aluminum
IPC: C07F5/06
Filed: 1959-01-29
Abstract: Comminuted aluminium is cleaned by contacting it with hydrogen while it is suspended in a liquid medium consisting at least in part of a compound having the formula R2AlY in which R is hydrogen or an alkyl radical and Y is an alkyl radical, said medium containing a metal of Group IA and IIA of the Periodic Table or an alkaline compound of such a metal.  The liquid medium may consist of the aluminium compound alone or in solution in an aliphatic or aromatic hydrocarbon such as hexane, heptane, kerosene, benzene, toluene, xylene, cyclohexane, methylcyclohexane or dimethylcyclohexane.  Specified aluminium compounds are diethyl,- di-n-propyl-, di-n-butyl, diisobutyl-, and di-n-pentyl aluminium hydride, and triethyl-, tri-n-propyl-, triisobutyl-, and tri-n-octyl aluminium.  Suitable metals of Group IA and IIA and Li, Na, K, Rb, Cs, Ca, Sr and Ba, and suitable compounds thereof are oxides, hydroxides, acetates (or other carboxylates), carbonates, bicarbonates and aluminates.  The process is operated at a temperature of 60 DEG -250 DEG C. and at a hydrogen pressure of about 100-10,000 p.s.i.
Patent GB-328608-A (GB)
Title: Improvements in devices for discharging biscuits or the like from a feeding mechanism
IPC: A21C3/00
Filed: 1929-01-30
Abstract: 328,608. Boer, H. P. den. Nov. 2, 1928, [Convention date]. Discharging-devices for endlessbelt conveyers. - Biscuits coming from an oven and carried flat on an endless band are stacked vertically on a second conveyer so as to facilitate packing, by means of a single rotatable prismatic roller 5 supported at a distance above the receiving band 11 and behind the knife 4 bv which the biscuits are removed from the oven conveyer 1. The roller is driven continuously or intermittently in consonance with the band 11, or it may be self-tilting, and tilts each row of biscuits into a vertical position on the band. To keep the first row of biscuits upright a supporting block may be laid across the band 11. The roller 5 is adjustable vertically and horizontally by means of set-screws 7, 8.
Patent GB-725303-A (GB)
Title: Self-locking clip
IPC: A47C21/02
Filed: 1953-02-05
Abstract: 725,303. Clips; strap fastenings. BEBECONFORT. Feb. 5, 1953 [Feb. 5, 1952], No. 3216/53. Class 44. In a pivoted jaw clip which locks itself in the closed position, comprising two members pivoting one on the other and a locking device pivotally mounted on one of the members, the corresponding extremities of the two members opposite the jaws have the form of hollowed-out arms, one of which can move into and fit inside the other and the locking device is formed with a nose portion which abuts an internal face formed in the heel of the other pivoted member in such a way that the curve described by the travel of the nose of the locking device and the curve of the internal face always intersect. In the arrangement shown in which portions 1 and 2 pivoted about a pin 3, are formed with jaws 4, 5 and hollowed-out arms 6, 7, a braking device 8 pivoted about a pin 9 on the arm 7 is formed with a nose 11 which in the closed position of the jaws 4, 5 shown, engages a face 12 of the arm 6. The device 8 is released by a push button 13 against a spring 10 and the arrangement is such that the curve of travel of the nose 11 always intersects the curve of the face 12. Two clips may be used at the ends of an adjustable strap for securing blankets on a bed, Fig. 4 (not shown), the device 8 in this case being pivoted against a coil spring and the gripping faces of the jaws being provided with elastic devices.
Patent GB-556000-A (GB)
Title: Improvements relating to the combustion chambers of fuel-injection engines
IPC: F02B19/14
Filed: 1942-03-13
Abstract: 556,000. Oil engines. SANDERS, A. F. March 13, 1942, No. 3372. [Class 7 (iii)] Fuel injection takes place into a compact cavity 12, preferably partspherical, provided at one side of the cylinder head and communicating with the cylinder space through an opening 17, which is made wedge-shaped, with the greatest thickness of metal at the side of the opening nearest the cylinder axis, the cavity at the opposite side joining the face of the cylinder head. The cavity 12 may be connected by a small passage with a further cavity arranged above it; or the additional cavity may be in the form of a segmental slot 21 formed in the piston with an undercut edge 22.
Patent GB-729444-A (GB)
Title: Improvements in or relating to power supply circuits
IPC: H01J43/30
Filed: 1952-02-08
Abstract: 729,444. Supply systems for space discharge apparatus. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Feb. 8, 1952 [Feb. 13, 1951], No. 3376/52. Class 38 (4). A power supply circuit, particularly for supplying direct potentials to the intermediate electrodes of electron discharge tubes, e.g. accelerating and focusing electrodes E1 . . . E3 of an image converter tube T, comprises a D.C. voltage source, e.g. a generator G, which interinittently charges a chain of condensers Cl ... C4 serially connected across such source and the respective capacities of which are inversely proportional to their required potentials, and a respective voltage limiting means consisting of a resistor R1 . . . R4 serially connected with a voltage limiting discharge device l1 . . . l4 connected across each condenser, the extinction voltage of each device equalling the desired voltage V1 . . . V4 across its respective condenser. In operation, prior to use of the tube, the source changes the condensers and causes each device l1. . . l4. to strike, extinction of which calibrates the condenser voltage. The devices may be fixed spark gaps or ionized gasfilled tubes. Recharging of the condensers may be effected manually, or automatically when the voltage of the group, or of a particular condenser falls below a certain value.
Patent GB-1166011-A (GB)
Title: Ultrasonic Vibrator Dental Tool
Inventor: RICHMAN BRUCE
IPC: A61C1/07
Filed: 1968-01-23
Abstract: 1166011 Dental instruments C & B CORP 23 Jan 1968 3500/68 Heading A5R An ultrasonic dental instrument comprises an energizing coil 32 mounted around a jacket member 16 and within a housing 14, there being an electromagnetic transducer (66) within the jacket member and providing, together with a connecting transformer part (68) see also Fig.6 (not shown), a supporting member 18 for a work tool 22, a liquid supply path being provided through an inlet 50 into the jacket member, over the transducer and into a passageway 86 in the supporting member leading towards the work tool. As shown, the work tool 22 includes a tool element 113 and a spray 116, a supply tube 52 providing water to the spray through the jacket member so that heat is dissipated from the dental instrument itself as well as from the tool element 113. A suitable energizing current supplied through the coil from the supply leads 43, 44 causes the tool element to vibrate at ultrasonic frequencies as the electromagnetic transducer (said to be a magnetostrictive laminate or stacks of nickel wire) converts electrical energy into vibrational energy. The work tool 22 see also Fig.7 (not shown) may be detached from the supporting member 18 for replacement or cleaning, a member 20 releasably retains the support member with the transducer within the jacket member, and a member 59 releasably retains the jacket member within the housing.
Patent GB-547951-A (GB)
Title: Improvements in or relating to presses for making metal tubular blanks or hollows
IPC: B21J9/04
Filed: 1941-03-14
Abstract: 547,951. Billet-piercing. WELLMAN SEAVER ROLLING MILL CO., Ltd., and McCLAY, G. S. March 14, 1941, No. 3525. [Class 83 (iv)] A press for billet-piercing has a ring 56, for guiding the punch 13, with means, such as adjustable and removable sectors 62 having internal surfaces 65, to centre it with respect to the billet container 6. The sectors 62 may form a continuous ring and may be displaced if the corresponding formation on the container 6 is damaged. In a modification the sectors 62 are replaced by a bevelled ring. The ring 56 may be urged downwardly by two cylinders 57 and fixed plungers 58 connected to a hydraulic accumulator &c. by a pipe 69. Specifications 547,950 and 547,952 are referred to.
Patent GB-1450967-A (GB)
Title: Magnetic-domain storage system
IPC: G11B23/40
Filed: 1974-01-25
Abstract: 1450967 Magnetic bubble stores PHILIPS ELECTRONIC& ASSOCIATED INDUSTRIES Ltd 25 Jan 1974 [12 Feb 1973] 03534/74 Heading G4C [Also in Division H3] Data is stored as stationary magnetic bubbles at particular positions in a plate of magnetic material mounted on a rotatable disc. The particular positions are determined by irregularities in the plate (e.g. spots of soft magnetic material deposited on the plate), the bubbles positioning themselves at these irregularities. Write-in and read-out are performed by a beam of polarized light as described in Specification 1,450,966. Means is provided for positioning the beam radially on the disc to address a required position. In one embodiment the plate includes a number of arcuate elongated recesses lying on tracks concentric with the disc axis and used for positioning the beam. The beam is directed on to the disc via an angularly adjustable mirror coarsely positioned to select a track. The mirror is finely adjusted to centre the beam on the track by an optical centring system which directs three beams on to the disc. When the mirror is correctly adjusted a centre one of these beams falls within a recess whereas the two outer beams lie half on the recess. The beams reflected from the disc fall on photosensors and the mirror is automatically adjusted until the outputs of the outer beam sensors are equal. The disc carries a number of plates, the recesses and the particular positions forming a regular array defining concentric tracks or a spiral track. The particular positions are defined by spots of soft magnetic material, e.g. permalloy, deposited on it, or by irregularities formed by selective diffusion, ion implantation or local thickening. The disc is rotated in a bias field formed by coils and/or by a layer of permanent magnetic material deposited on the disc. It may be mounted in a cassette (Fig. 1 not shown) comprising an evacuated casing including permalloy top and bottom plates and a permanent magnetic cylindrical side wall.
Patent GB-527286-A (GB)
Title: Improvements in oil burning heaters
IPC: A01G13/06
Filed: 1939-02-02
Abstract: 527,286. Oil burning heaters. SHELL MARKETING CO., Ltd., and SAMBROOK, K. H. Feb. 2, 1939, No. 3563. [Class 75 (i)] An orchard or like heater comprises an oil vessel 1 with air admission openings 5 above the oil level and a central tube 2 partly submerged in the oil and extending upwards through an opening in the top 8 of the vessel from which it is spaced by an air admission gap 3. The portion of the tube 2 within the vessel 1 is provided with openings 4, 7 below and above the oil level respectively. The oil vapour burns at the top of the tube 2 to which additional air may be admitted through openings 6. Some of the openings 5 may be provided with downtake tubes which are uncovered when the oil level drops.
Patent GB-464946-A (GB)
Title: Improvements in or relating to apparatus for receiving television and like electric signals accompanied by two or more groups of synchronising signals
IPC: H04N5/10
Filed: 1936-02-06
Abstract: 464,946. Television. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Feb. 6, 1936, No. 3641. [Class 40 (iii)] Synchronizing signals are separated from each other and from the main signals by passive non-linear elements 9, 10, 11 in parallel, each of which is in series with a circuit 14, 15 which transmits preferentially a different range of frequencies. A resistance 25, between the common cathode 9 of the double diode D and a lead 6, supplying the signals, regulates the amplitude to which the diode responds, and separates its capacity from an amplifier V. Specifications 423,685 and 441,847 are referred to.
Patent GB-1042561-A (GB)
Title: Apparatus for the stabilized transport of web-like materials
IPC: B65G51/03
Filed: 1964-01-28
Abstract: 1,042,561. Feeding webs. A.B. SVENSKA FLAKTFABBIKEN. Jan. 28, 1964 [March 19, 1963], No. 3685/64. Heading B6B. In an apparatus for supporting a moving web in spaced relationship to a surface over which it is passing, jets of air or other gaseous medium issue in opposite directions parallel to the direction of feed from ports 3a, 3b in ducts 2 forming parts of the support surface, the air being extracted through ports 4 in a number of separate streams. In one form, Fig. 1, the exhaust ports 4 are between the ducts 2 and have cover-plates 5 with apertures 6 through which the air passes. According to another arrangement, Fig. 3 (not shown), a single supply duct 9 is provided, and exhaust ports 10, situated between pairs of oppositely-facing jet ports 8a, 8b extend through the duct 9. The total area of the apertures 6 is 50-90% of the area of the port 4. Further, the total area of the exhaust openings may be 5 to 20 times the total area of the jet ports. The support surface may be above or below the web and may be inclined to the horizontal.
Patent GB-415953-A (GB)
Title: Improved methods of making plastic elastic materials
IPC: C08G61/02
Filed: 1934-02-05
Abstract: One molar proportion of an aromatic compound of the general formula R--C6H4--R<1>, wherein R and R<1> each represent hydrogen or a saturated aliphatic hydrocarbon radical containing more than one carbon atom, is reacted with one molar proportion of an ethylene dihalide in the presence of aluminium chloride until after gellation has occurred and the reaction is stopped to yield a plastic material. In an example, benzene and ethylene chloride are reacted in the presence of aluminium chloride until gellation has occurred and the plastic material is obtained by quenching with water.
Patent GB-739630-A (GB)
Title: Improvements in regulators for synchronous electric machines
IPC: H02P9/10
Filed: 1954-02-09
Abstract: 739,630. Automatic voltage control systems. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 9, 1954 [Feb. 11, 1953], No. 3744/54. Class 38 (4). In an automatic control system for the excitation of a synchronous electric machine by means of a regulator responsive to the difference between machine voltage and a reference voltage, and in which the excitation has a lower limit imposed to prevent loss of synchronism, the limiting is effected by increasing the reference voltage. The machine 1 is excited by an exciter 3 normally controlled by a voltage regulator 5 in accordance with the difference between line voltage obtained from potential transformer 7 and rectifier 8 and a reference voltage obtained from constant voltage source 12. A current transformer 16 and rectifier 9 (fed via isolating transformer 17) limit the line current by blocking the rectifier 8 above a predetermined limit and so regulating for constant current. If the output of the exciter falls below a predetermined value, the relay 18, energized by the exciter 3, trips to the position shown to short-circuit the rectifier 9 and the reference voltage is boosted by the output of a rectifier 14 energized via isolating tramsformer 15 from current transformer 16. In a modification, Fig. 3 (not shown), the current limit at under-excitation is made dependent on the power component of the line current by connecting, in parallel with the transformer 15 (above), unspecified means supplying a current derived from the active machine current. The change-over relays are energized in accordance with the machine field current.
Patent GB-684416-A (GB)
Title: Improvements in starting and synchronizing of electric machines
IPC: H02P1/46
Filed: 1950-02-14
Abstract: 684,416. Control of motors. BRITISH THOMSON-HOUSTON CO., Ltd., and OLDHAM, T. J. F. Feb. 13, 1951 [Feb. 14, 1950], No. 3747/50. Class 38 (iii) [Also in Group XXXV] A synchronous machine such as a synchronous condenser 5 is driven up to synchronism with the supply to which it is to be connected by an induction motor 1 the speed of which is rendered adjustable by the injection into its secondary windings of a voltage at an appriopriate low frequency. Fig. 1 shows the induction motor having a primary rotor winding supplied through slip-rings 2. The rotor also carries a regulating winding connected to commutator 3 from which polyphase voltages at slip frequency are derived for injection into the secondary windings on the stator of the motor. The amount of speed adjustment may be sufficient to cause the motor 1 to run at the synchronous speed of the machine 5 or above it. A handwheel may adjust the brushgear to set the slip to any desired small value. Control of the Scherbius type is shown in Fig. 2 in which a low frequency generator 7 is connected to the rotor secondary winding of the starting motor 9 through slip-rings 13, Adjustment of speed is obtained by means of excitation regulator 12 for the machine Y. In this case the starting motor has fewer poles than the synchronous condenser. The system may be used for starting synchronous type frequency charger sets for linking systems of unequal frequencies. The Provisional Specification refers to a starting motor of the Schrage type.
Patent GB-447847-A (GB)
Title: Means for arresting amusement cars
IPC: A63G7/00
Filed: 1935-02-06
Abstract: 447,847. Amusement apparatus. SHILLAN'S AMUSEMENTS, Ltd., and HARRISON, C. H., Britannia House, Ampton Street, London. Feb. 6, 1935, No. 3820. [Class 132 (i)] The invention relates to amusement apparatus wherein passenger carrying cars are individually motor-driven over a track and consists in locating a flexible member in the track surface operable by an attendant to trip mechanism on the cars to stop them. As shown, a flexible strip A, mounted in the track B, is raised to the position shown by an attendant rocking a lever D, to engage and rock a trip lever 7 on a car E. The car is driven by a petrol engine the throttle lever 12 of which is normally controlled by a cam 1 rigid with the accelerator rod 3 actuated by the passenger. When the trip lever 7 is actuated by the strip A, a rod 6, normally held up by lever 7, is forced downwardly by a spring 11 and through an arm 5 rocks a cam 2 slidably mounted on rod 3, the cam 2 moving the throttle lever 12 to the position in which the engine just ticks over, and the clutch automatically disengages. The lever 6 has an arm 15 to facilitate manual resetting thereof. In the case of electrically driven cars a similar arrangement may be employed for actuating a switch in the driving motor circuit.
Patent GB-1176127-A (GB)
Title: Electrical Burglar Alarm Systems
IPC: E05B45/08
Filed: 1968-01-24
Abstract: 1,176,127. Inert switches. H. SZIGAT, [trading as HERBERT SZIGAT WUPPERTALER SCHLUSSELDIENST]. 24 Jan., 1968 [24 Jan., 1967], No. 3822/68. Heading H1N. [Also in Division G4] A switch for a burglar alarm (see Division G4) has a metal casing 11 fixed to a wooden door frame and an insulating plunger 8 biased by a spring 9 and carrying a metal plate 13 arranged so that deformation of the striking plate 2<SP>11</SP>, in an attempt to force the door, allows plate 13 to contact the metal casing 11. Fig. 8 shows an alternative arrangement comprising spring-biased contacts 18, 19 mounted on an insulating plate 17 and arranged to be mounted inside a metal door frame so that the surfaces 18<SP>1</SP>, 19<SP>1</SP> of the contacts may be bridged by the tongue of the bolt on deformation of the latter if an attempt is made to force the door.
Patent GB-364886-A (GB)
Title: Improvements in or relating to the starting and control of diesel locomotive engines
IPC: F02D9/00
Filed: 1931-02-06
Abstract: 364,886. Starting ; fuel pumps. HUMBOLDT - DEUTZMOTOREN AKT. - GES., (formerly MASCHINENBAU - ANSTALT HUMBOLDT), 149, Deutz-M³lheimerstrasse, Deutz, Cologne, Germany. Feb. 6, 1931, No. 3865. Convention date, Feb. 6, 1930. [Class 7 (v).] In a controlling device for Diesel locomotive engines normally working with solid injection and started by the combustion of fuel with compressed air, members for controlling the admission of fuel and compressed air are connected for simultaneous adjustment so that the charge of compressed air corresponds to that of fuel. As shown, the cylinder B of a two-stroke engine has a scavenging-air inlet C, an exhaust port D, a fuel nozzle F, an ignition device G and a starting-air valve E actuated from a cam N on the shaft H by means of levers K, K<111> connected by a link K<11>, The fuel pump J is actuated by a cam L on the shaft H, and the cams L, N are movable axially on the shaft by means of levers O, O<1> connected by a link P, a spring Q being interposed between the link P and the lever O<1>. In the normal running position shown in Fig. 2, the lever K of the starting valve E is not actuated, and the roller J<1> on the pump plunger is in the mid position a<1> on the slope of the cam L. For starting, the levers O, O<1> are moved to the left until the starting-valve lever K is actuated by the mid portion b of the cam N and the pump plunger by the end portion b<1> of the cam bl, so that a double charge of fuel is admitted with the starting air. In this position, the lever O<1> engages a stop X and further movement of the lever O to the left moves the cam N to position c and compresses the spring Q, so that the compressed air charge is increased without increasing the fuel charge. For slow running, the lever O<1> is moved to the right sufficiently to bring the cam L into the position x, in which a small fuel charge is admitted without compressed air.
Patent GB-738631-A (GB)
Title: Compounds of the cyclopentanopolyhydrophenanthrene series and a method of making same
IPC: C07J1/00
Filed: 1952-04-04
Abstract: The invention comprises compounds of the general formula <FORM:0738631/IV (b)/1> which represents a cyclopentanopolyhydrophenanthrene ring system having the <FORM:0738631/IV (b)/2> grouping in the 3-position and a keto group in the 17-position, and wherein R is a saturated or unsaturated aliphatic hydrocarbon residue.  The compounds are prepared by oxidation of the corresponding 17-hydroxy derivatives.  In examples: (1) 3a-methyl-androstan-3b : 17b -diol is oxidized with chromic acid in glacial acetic to yield 3a - methyl - androstan - 3b - ol - 17 - one; (2) 3b-methyl-androstan-3a : 17a -diol is oxidized as in (1) to produce 3b-methyl-androstan-3a-ol-17-one.  The compounds obtained exhibit anti-hormonal activity.  Specification 738,576 is referred to.