baber/WOPTO huggingface dataset:
Patent GB-893649-A (GB)
Title: Improvements in or relating to paper and like sheet collecting machines
IPC: B41L1/00
Filed: 1958-04-29
Abstract: 893,649. Sheet-collating machines. FRANKFURTER MASCHINENBAU A.G. April 29, 1958 [Aug. 29, 1957], No. 13635/58. Class 100(1) A sheet-collating machine comprises a number of stacks of sheets 9 arranged in a fixed circular array, a corresponding number of sheet pick-up and release devices 5 mounted on a verticallyreciprocable support 3, and a corresponding number of sheet-collecting trays 8 on a rotating support 2, 16, each tray in its rotary movement receiving a sheet successively from the stacks until a stack collector 10 is reached, at which point a fixed stripper 13 moves the assembled sheets into the collector. Each pick-up and release device comprises suction nozzles 6 mounted on a bar 5 carried by a lever arrangement 4 pivoted on a pin d fixed to the support 3. Cams 11 on the support 16 engage rollers 12 on the levers 4 so as to raise the support and tilt the suction nozzles at the requisite times to cause sheets to be lifted from the, stacks 9 and deposited on the trays 8. At the trailing edge of each tray is a vertical bar 7 which prevents sheets from slipping off the trays, this bar however being pivoted into the plane of the tray adjacent to the collector 10 so as to allow the stripper 13 to operate. The bar 7 is notched to permit it to pass the nozzles 6, and the stripper has projections h which engage concentric grooves i in the trays 8. The support 2, 16 can rotate either continuously or intermittently.
Patent GB-739045-A (GB)
Title: Improvements in dimming circuits for electric discharge lamps
Inventor: STICKLEY WILLIAM ALBERT
IPC: H05B41/39
Filed: 1951-06-08
Abstract: 739,045. Control systems for space discharge apparatus. THORN ELECTRICAL INDUSTRIES, Ltd. June 9, 1952 [June 8, 1951], No. 13660/51. Class 38 (4). Dimming of a plurality of electric discharge lamps 10 is effected by a variable impedance 20 connected in shunt with an auxiliary winding 19 of a respective choke 17 serially connected with each lamp to A.C. supply terminals L, N, the main winding 18 of each choke 17 and its lamp 10 being connected in parallel with the other main windings and lamp. As shown each auxiliary winding 19 has a respective variable impedance 20 but in other embodiments all the auxiliary windings 19 are serially connected with a single, commoning variable impedance 20 which may be a resistance. Also as shown, for use in theatre lighting for example, there may be connected a further variable impedance 26 in either lead to the A.C. supply terminal L or N which further impedance 26 dims the lamps to a degree present for each lamp individually by impedance 20. For lamps requiring electrode preheating starting switches or heating transformers 21 may be provided, while for assisting starting each lamp may have an earthed external starting strip 25. In Fig. 4, not shown, each lamp may be replaced by two in series, and each choke auxiliary winding 19 may have a manually or automatically operable switch by which the winding is shorted should its associated lamp not strike. The Provisional Specification refers to the dimming of a single discharge lamp. Specification 720,264 is referred to.
Patent GB-1064052-A (GB)
Title: Adjustable eccentric
Inventor: OELTZE MANFRED
IPC: F16C3/28
Filed: 1965-03-31
Abstract: 1,064,052. Ecceritrics. SCHWERMASCHINENBAU ERNST THALMANN VEB. March 31, 1965, No .13668/65. Heading F2K. The throw of a compound eccentric 4 oscillating a connecting rod 14, in crank or pendulum crushers, thrust rod actuators, shaking grates or jigging screens, is varied from zero by turning it in eccentric bores in a driving wheel 7 and flywheel 10 which run in fixed bearings 1, 2 and are connected for rotation together by an inner shaft 12. The turning adjustment is effected during drive by a double-acting hydraulic ram between the wheel 7 and an arm on the eccentric 4, or by a slip-ring-fed electric motor carried by the wheel 7.
Patent GB-1386602-A (GB)
Title: Shaft seal
IPC: F16J15/50
Filed: 1971-05-07
Abstract: 1386602 Stuffing-boxes GEC DIESELS Ltd 8 May 1972 [7 May 1971] 13703/71 Heading F2B A rotary shaft 11 is sealed where it extends through an aperture 12 in a vessel wall 13 by means comprising at least one deformable sealing ring 19, 20 engaging the shaft and centred thereon by an adjoining shaft bearing 21 and located in a housing 16 flexibly connected to the wall by a sealing member, e.g. flexible bellows 22, to allow radial movement of the shaft. The rings 19, 20 are lip type seals separated by the bearing 21. Rotation of the housing 16 is prevented by a pin 27 on the wall engaging a slot 26 in the housing. Grease or a lubricant, which may be water, or a gas may be supplied to the bearing 21 through a port 28 at a pressure sufficient to prevent leakage from the vessel past ring 19. In another embodiment, Fig. 3, packing rings 37, 38 and 39 are compressed in the housing 16B by a gland ring 18B and a resilient annular sealing member 35, which may be of rubber or nylon, is compressed between the housing 16B and the wall 13B by nuts 32 on tiebolts 31 engaging eyes 30 on the wall.
Patent GB-437754-A (GB)
Title: Improvements in or relating to convertible chair beds
IPC: A47C17/16
Filed: 1934-05-07
Abstract: 437,754. Convertible chair-beds. CURLE, E., 27, Rutland Gate, Kensington, London. May 7, 1934, No. 13720. [Class 52 (ii)] A convertible chair-bed comprises a fixed frame 1, Figs. 1 and 2, a sliding seat frame 2, and a two-part back frame 3, 4, the front frame being hinged at 7 to the seat frame 2, the rear frame pivoted at 6 to the fixed frame 1, and the frames 3, 4 hinged together at 5. The rear back frame 4 carries brackets 8, with pins 9, Fig. 7, which bear in slots in plates 11 secured to the frame 1, and cam surfaces 12 on the brackets 8 engage levers 13 pivoted to the plates 11, the other ends of the levers engage rods 15 supported in the base frame 1 by guides 18, Fig. 2, and connected to other rods 16, 17 which are supported on the frames 2, 3 by arms 19. Extensions of the arms 19 carry rollers 21 which run on tracks 22, Fig. 1, in the frame 1 and support the frames 2 and 3 in the extended position. Specification 421,667 is referred to.
Patent GB-936832-A (GB)
Title: Improvements relating to the production of p.n. junctions in semi-conductor material
Inventor: BULLOUGH RONALD
IPC: H01L29/73
Filed: 1959-04-22
Abstract: 936,832. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 21, 1960 [April 22, 1959], No. 13729/59. Class 37. A transistor is produced by heating a body of mono-crystal semi-conductor containing activators of opposite conductivity types and having an internal planar crystal boundary to produce controlled diffusion and precipitation at the crystal boundary of at least one of the activators so as to form a region of opposite conductivity type from that of the body. The invention is described with reference to a silicon crystal drawn from a melt doped with aluminium and phosphorus so as to produce P-type material. The internal tilt boundary may be produced either by using a seed crystal already containing a tilt boundary or two identical crystals rotated with respect to each other. The boundary is propagated down the growing crystal ingot. The initial P-type silicon is heated to from 1000-1250‹ C. in a quartz container which is evacuated or contains an inert gas. Aluminium combines with oxygen at crystal boundaries to form a stable complex, thus reducing the concentration of the P-type impurity near the crystal boundary so that the silicon in the region is converted to N- type material with PN junctions on each side of this region. Fig. 4 shows a completed transistor in which the base contact 4 is made to the region containing the grain boundary and 3 and 5 are the emitter and collector contacts. In the form shown in Fig. 5, part of the emitter region 3 is covered with wax to allow the outer region to be etched away to expose the base region 4, thus permitting the use of a ring contact. The collector contact consists of a disc or plate and the wax is removed before the emitter contact is attached. Specification 936,831 is referred to.
Patent GB-110773-A (GB)
Title: Improvements in or relating to Justifying and Indicating Mechanism for Typographic Composing Machines.
IPC: B41B25/00
Filed: 1916-09-27
Abstract: 110,773. Lanston Monotype Corporation, (Lanston Monotype Machine Co.). Sept. 27. 1916, Strip-perforating machines; justifying type.-In machines of the kind described in Specification 17199/08 and in which intermediate mechanism of the kind described in Specification 27264/13 is arranged between the justification-drum driving- gear and the units-wheel motor-rack, a pneumatic motor is provided for driving the justification drum. The intermediate mechanism comprises an abutment slide 9<1> which is mounted on the unitswheel rack 6 and is resisted and returned by the piston 13 of a motor 12, the justification drum being geared to a sliding sleeve 9 provided with an adjustable pin 19 which can engage and follow up the slide 9<1>. According to the invention, the sleeve 9 is geared by a pinion 10 to the piston 24 of a pneumatic motor 25 which is of less power than the motor 12 and is at all times in open communication with the motor 12 or with a common source of air supply.
Patent GB-528478-A (GB)
Title: Improvements in vibrating apparatus for fourdrinier paper machines
IPC: D21F1/18
Filed: 1939-05-08
Abstract: 528,478. Fourdrinier paper-making machines. SUBMARINE SIGNAL CO. May 8, 1939, No. 13730. Convention date, May 20, 1938. [Class 96] The shaken section of a Fourdrinier papermaking machine contains a pair of shake rails 1, 2 pivoted at one end 3, 4 and is vibrated in phase at resonant frequency together with compensating masses 8, 9 elastically coupled at 10, 11 to different points of the shake rail, the compensating masses being vibrated independently but in phase with each other and such that the sum of the momenta of them all equals the total momentum of the shaken section of the machine at the resonant frequency. The mass 8 is coupled at the "centre of percussion" of the machine and is just large enough to produce substantially zero deflection in the shake ran at the resonant frequency, the other mass being coupled, e.g. at the breast roll 5. Specifications 480,782, and 496,878 are referred to.
Patent GB-569672-A (GB)
Title: Mechanism for transmitting rotary movement at a distance
IPC: F16C1/10
Filed: 1943-08-24
Abstract: 569,672. Bowden mechanism. HEWITT, N. E. Aug. 24, 1943, No. 13817. [Class 80 (iii)] [Also in Group XXXI] Consists in mechanism for transmitting rotary movement at a distance, wherein a series of alternating balls and distance pieces are enclosed in guide tubes as described in Specification 560,025. The guide tubes 61, which contain the balls 62 and spacers 63, are secured to a radial boss 64 of a casing 65. The bores of the guide tubes register with channels 67 in the boss and these channels lead to a circular channel 66 which also contains the balls and spacers. An arm 68 mounted on a driving or driven shaft 71 has a projection 69 which enters the channel 66 and replaces some of the spacers and balls so that it is rotated as the latter are moved along the guide tubes and channels. An adjustable cam 70 may be used to separate split portions of the arm and projection to maintain contact between the balls and spacers.
Patent GB-1363405-A (GB)
Title: Combination tool
IPC: B44D3/10
Filed: 1973-03-22
Abstract: 1363405 Hand tools J CANTALES 22 March 1973 [22 March 1972] 13853/73 Heading E1S [Also in Division B4] A combination hand tool which forms a plasterers smoothing knife as well as a nail puller, picture hanger remover and screwdriver comprises a flat metal blade member 4 having a top and a bottom surface, said blade member having a relatively wide blade end portion 6 which tapers into a longitudinally extending shank portion 10, a chisel point screwdriver 36 at the end of said shank portion, a picture hanger remover formed in a side edge of said shank portion adjacent the end of said shank portion, said picture hanger remover comprising a tapered slot 22 extending inwardly from the edge of said side edge of said shank portion and terminating at an apex 24, and a tapered pointed arm portion 26 of said shank between said slot and the end of said shank portion, and a nail puller on the bottom surface of said shank portion of said blade member and oriented longitudinally to said shank member, said nail puller having a pair of spaced side walls 29 depending from the bottom surface of said shank portion, a bottom wall 30 connected to the bases of said side walls, said bottom wall extending into an upwardly inclined ramp 32 terminating in the plane of said shank portion and a nail aperture 40 in said bottom extending in the form of a tapered slot 42 into said ramp. Moulded plastics or wooden handle parts 12, 14 are fixed to the shank portion 10 e.g. by rivets 18. The walls of the nail puller may be pressed from the shank material or alternatively (Figs. 5, 6 not shown) formed separately from the shank of the tool and then rivetted thereto. In an alternative construction (Figs. 7-10 not shown) the screwdriver tip is directed at a right angle to the general plane of the tool shank.
Patent GB-573666-A (GB)
Title: Improvements in amplifying mechanisms with positional correspondence
IPC: G05D3/14
Filed: 1943-08-25
Abstract: 573,666. Power - assisted control systems. PRECISION DEVELOPMENTS CO., Ltd., and OLAH, G. Aug. 25, 1943, No. 13875. [Class 40 (i)] [Also in Group XXXVII] In a system for moving, e.g. an aircraft control surface in which the effort of a servomotor is divided by means of a mechanical coupling in a definite proportion between the control lever and the means for moving the surface so that the pilot has the proper " feel " of the control, the servomotor is associated with a brake which is controlled simultaneously with the motor by the follow-up switch, e.g. as described in Specification 556,287. As shown, the control lever is geared to an input rack 3 which is geared to a shaft 26 and the means operating the control surface is connected to an output rack 5 which is geared to the cage member 31 of a kind of differential gear of which the outer member 24 is geared to the servomotor. Instead of planet wheels, the cage carries levers 25 which engage notches in the member 24 and the shaft 26, the relative lengths of the arms of the levers determining the distribution of the effort of the motor between the input and output members. Only a slight relative movement of the parts of the gear is possible since the two racks are connected together by a loose-fitting pin to permit unassisted manual control. If the power-supply fails, release of a solenoid 37 coupled by a steel band 39 to an eccentric shaft 41 allows a spring to rotate this shaft and disengage the power unit from the racks. A hand lever is provided to effect this if the spring fails to do so. The racks may be replaced by rotary shafts. The follow-up switch may be of the kind described in Specification 556,288 but, as shown, comprises a set of gear wheels 9 ... 12, Figs. 8 and 9, insulated from their shafts. Wheels 9 and 12 are coupled resiliently to the input and output-racks respectively and the intermediate wheels 10, 11 are relatively displaced so that when 9 is driven in one direction contact is made between the teeth of 9 and 10 and between those of 11 and 12 whereas when 9 is driven in the opposite direction, the contacts are between the teeth of 9 and 11 and those of 10 and 12. This determines the direction of current flow in a motor 50 and at the same time energizes one or other of two coils 46, 47 to neutralize the effect of a normally energized brake-operating coil 48.
Patent GB-582889-A (GB)
Title: Improvements in and relating to x-ray generating apparatus
IPC: H05G1/32
Filed: 1943-08-25
Abstract: 582,889. X-Ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 25, 1943, No. 13881. Convention date, Aug. 26, 1942. [Class 39 (i)] In an X-ray tube of the kind having a number of lens electrodes 22, 23 between the cathode 10 and the target 18, the potentials of the electrodes relatively to the cathode are obtained from a potentiometer 31 ... 33, and means are provided for selectively connecting the cathode to one or other of the lens electrodes without altering the potential conditions inside the tube. These consist of a common earth conductor connected to the target and to each of three pivoted contacts 40, 41, 42 biassed by springs so as to contact with the end of the potentiometer and the intermediate connections of the lens electrodes. Each contact is opened by an electromagnet 47, 48, 49 in circuit with a supply 51, 52, through a multi-contact switch 58 adapted to bridge two only of the terminals 54, 55, 56, 54<1>, the last of which is connected to the first by a jumper 57.. Movement of the switch over the successive pairs of terminals opens successively the contacts 40, 41, the contacts 40, 42 and the contacts 41, 42. The potentiometer is the secondary of a transformer, the primary of which is in the form of a number of coils 30a ... e distributed along the secondary and connected in parallel to a supply source, which may have a control device in the form of an auto-transformer 60.
Patent GB-393747-A (GB)
Title: Transmission gear mechanism for motor-vehicles
IPC: F16D11/10
Filed: 1932-05-14
Abstract: 393,747. Claw clutches; facilitating changing speed. DENNIS BROS., Ltd., Woodbridge Works, and POPPE, E., Threegates; Guildown Road, both in Guildford, Surrey. May 14, 1932, No. 13910. [Class 80(ii).] In motor-ve e h i c l e transmission systems including a main clutch interconnected with a dog clutch behind the gear-box, the tail clutch having means, such as bevelled teeth, to prevent engagement under spring action except when the driving-member overtakes the driven member, the dog-teeth are slightly undercut so as to tend to remain engaged under load. Both clutches are preferably actuated by an engine-suction servomotor. The engine clutch 2 and tail clutch 7, Fig. 1, are operated conjointly by a vacuum servomotor 5, the engine clutch being operable separately by a pedal 6. By a lost-motion connection 8, the clutch 7 is disengaged after the clutch 2 and is released for engagement by its spring 9 prior to mainclutch engagement, actual engagement of the members 10, 11, Fig. 4, of the clutch 7 being prevented by the bevelled faces 17 of their teeth until the driving-member has overtaken the driven member. A clutch-stop may be provided for the main clutch. The driving- faces 18 of the teeth are undercut or dovetailed to retain engagement under load. The engaging spring may be a torsion spring 9, Fig. 2, acting on the spindle 15 of the control arm 13. The servomotor may be controlled mechanically by a pedal or button or by a solenoid and switch button, as described in Specification 393,778. By use of an enginesuction servomotor, high-speed clutch operation under power is impossible, due to inadequate vacuum ; the servomotor control button is therefore preferably close to or coupled with the engine throttle &c., which thus must first be closed prior to servomotor actuation.
Patent GB-505944-A (GB)
Title: Improvements in electrical follow-up devices
IPC: G08C19/00
Filed: 1938-05-10
Abstract: 505,944. Electric signalling systems. ASKANIA-WERKE AKT.-GES. May 10, 1938, No. 13985. Convention date, May 10, 1937. [Class 40 (i)] In a follow-up device, wherein contacts are opened and closed in accordance with movements of a primary member, the. contacts comprise glow discharge paths between electrodes in a chamber containing a gas at low pressure. Upon the conducting member 9, Fig. 3, being displaced clockwise, a continuous discharge will occur over electrodes 10, 11, through series resistance 18 and relay 29, the latter operating to energize one winding of a reversible motor 35 to drive the follow-up member clockwise until the discharge ceases, whereupon the relay 29 falls away and motor 35 reverses, the follower oscillating about a mean position. As applied to a repeating compass, Fig. 1, the magnet 1 is carried by an axle 2 and moves in an annular damping member 5, the axle also supporting a bridge member 9, which may be the magnet itself, the electrodes 10, 11 being connected through pins 19 to slip rings 22, 23 with which brushes 24, 25 on the motor casing 27, co-operate. The motor rotates the bulb 16 containing an inert gas at low pressure, and also operates the transmitter of a repeating system. In a modification, Fig. 5, the arms of the bridge member 9,are of unequal length and complete discharge paths between electrodes 42 or 43 and 44 to operate relays 45, 51 controlling the follower motor 48. In a further modification, auxiliary electrodes complete discharge paths only when the deviation is sufficiently great, in order to accelerate the followup movement. The electrodes may be coated to decrease the striking voltage, and may be heated.
Patent GB-528611-A (GB)
Title: A process for refining hydrocarbon mixtures in the vapour phase
IPC: C10G17/06
Filed: 1939-05-10
Abstract: 528,611. Refining hydrocarbons. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. May 10, 1939, No. 13985. Convention date, May 18, 1938. [Class 91] Gasoline, fuel oil and other distillates are refined by dispersing in the hydrocarbon vapours a 25 per cent or weaker solution of one or more organic sulphonic acids, mixed or not with sulphuric acid, in a chemically inert solvent which is volatile under the reaction conditions, the acid being in such quantity as to be completely or almost completely consumed. The treatment may be countercurrent but is preferably in parallel ; suitable temperatures are 90-210‹C., usually the time of contact is 3-90 sec., the concentration of the solution 0.5-10 per cent. and the amount of acid 0.057- 11.4 gms. per litre of gasoline ; dispersion may be effected by spraying the solution into the vapours or by filming the solution over packing in a treatment tower ; the pressure may be atmospheric, reduced, or raised ; there may be a series of reaction zones in which the conditions may be similar or different e.g. the temperatures may fall progressively and the concentrations of the solutions used rise, and/or the flow may be in parallel in one or more zones, countercurrent in the others ; steam may be introduced; treatment with lye and/or acid may precede the process ; and treatment with silver nitrate or " doctor " may follow it. Acids specified are mono- and poly-sulphonic acids of benzene, toluene, xylene, naphthalene, methane, ethane, and propane, substituted or not e.g. by halogen, amino, or hydroxy groups ; and oil-soluble sulphonic acids obtained by treating viscous mineral oil with fuming sulphuric acid. Solvents suitable are water, pentane, hexane, and non- cracked gasoline. In one example, cracked gasoline is washed with dilute soda and sulphuric acid, and then treated in parallel in the vapour phase at 137‹C. with 30 per cent. by vol. of a 2 per cent. aqueous solution of benzene-sulphonic acid or 3 per cent. by vol. of an 8.3 per cent. solution. The proportion of acid required to remove the undesirable constituents, principally diolefines, may be determined from the maleic anhydride value. Specification 437,864 is referred to.