baber/WOPTO huggingface dataset:
Patent GB-108651-A (GB)
Title: Improvements in Electric Circuit Breakers for Polyphase Alternating Current Circuits.
IPC: H01H71/00
Filed: 1917-03-22
Abstract: 108,651. Igranic Electric Co., (Cutler-Hammer Manufacturing Co.). March 22, 1917. Controllers with auxiliary switches and no-volt release.-An automatic circuit breaker for a threephase alternating current supply consists of a twopole electro-magnetic switch the winding of which is controlled by a switch which is moved to its closed position by an induction motor the torque and restraining force of which may be varied. The circuit of the winding of the electromagnetic switch also contains a hand-operated switch which, when the main switch is closed, may be employed to open and close the load circuit through the medium of the circuit breaker. The induction motor may be supplied through a variable potential transformer and is mounted on a vertical spindle in ball bearings which are lubricated by grease which is rendered liquid by the heat generated electrically in the motor. In the arrangement shown in Fig. 1 the circuit of a load motor M contains a two-pole electromagnetic circuit-breaker 1 the circuit of the operating coil of which contains a motor operated switch 2 and a hand operated switch 7. The switch 2 is operated by an induction motor R, S the torque of which is varied by variable resistances r, r<1>, r<2> or by a variable potential transformer. The motor R, of Fig. 2, is mounted on a vertical spindle 5 in ball bearings 14, 15 which are lubricated by grease rendered fluid by the heat electrically generated in the motor when the latter is restrained to hold the switch 2, Fig. 1, closed. The spindle 5, Figs. 2 and 3, carries a member 26 upon which are mounted contacts 12, 13 adapted to engage fixed contacts 10. 11. The motion of the spindle 5 is restrained by an adjustable spring 3 and partly by the contact 10 which is arranged to engage the contact 12 before the contacts 11, 13 engage one another. The contacts 12, 13 are connected by a lead 27. When the switch 7, Fig. 1, is closed, and the main switch b is closed the motor R, S operates to close the switch 2 thereby energizing the winding of the circuit breaker 1 to connect the motor M to the mains, L, L<1>, L<2>. Upon a substantial diminution of voltage L in the mains, or upon reversal of phase, the spring 3 overcomes the torque of the motor R, S, and the circuit breaker 1 is deenergized to disconnect the motor from the mains. If the switch 7 is opened and the normal voltage conditions restored the motor M may again be switched in by closing the switch 7, since if the switch 6 remains closed the motor R. S, will again partially close the circuit of the circuit-breaker 1 at the switch 2.
Patent GB-1414571-A (GB)
Title: Non-magnetic anti-personnel war mine
IPC: F42B23/10
Filed: 1973-01-26
Abstract: 1414571 Mines TECHNICAL ARCO ESTABLISHMENT 26 Jan 1973 [9 Feb 1972] 4225/73 Heading F3A A non-magnetic, anti-personnel war mine comprises an explosive charge 18 contained in a body 1, a firing pin 13 for depression towards a chamber 18 that is arranged to contain a detonator 21, and a removable rigid safety cover 23 incorporating a chamber 24 for storage of the detonator prior to use. The detonator is contained in a plug 26. A blind plug closes the chamber 18 prior to use. The firing pin is arranged to be depressed when a spring 16 is compressed sufficiently to break pillars 29.
Patent GB-1506131-A (GB)
Title: Preparation of dihydromyrcenol or a carboxylic ester thereof
IPC: C07C11/12
Filed: 1976-02-04
Abstract: 1506131 2,6 Dimethyl octa-1,7-diene; cyclodimerizing isoprene SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 3 Feb 1977 [4 Feb 1976] 4371/76 Heading C5E (Also in Division C2] 2,6-Dimethylocta-1,7-diene is obtained with isomeric open-chain dienes by the thermal isomerization, e.g. at 500-550‹ C., of a starting material comprising 1,5-dimethylcyclooctene optionally in admixture with 1,4- and/or 1,6-dimethylcyclooctene. The starting material may be obtained by selective hydrogenation of a mixture of 1,5- dimethylcycloocta-1,5-diene and 1,6-dimethylcycloocta-1,5-diene in the presence of a noble metal catalyst; such a mixture is formed by dimerization of isoprene, using for example a nickel (o) phosphite complex as catalyst.
Patent GB-1023801-A (GB)
Title: Voltage regulators
Inventor: SINCLAIR WALTER
IPC: H02M3/04
Filed: 1962-02-06
Abstract: 1,023,801. Automatic voltage control. ROTAX Ltd. Jan. 7, 1963 [Feb. 6, 1962], No. 4463/62. Heading G3R. A direct voltage regulator comprises input terminals 1, 2, output terminals 4, 5, a series transistor 7, a square wave oscillator including a transformer 9 and transistors 21 and 22, a pair of switching circuits through which the output from the oscillator is applied to the base of transistor 7 which is thereby rendered conductive at the commencement of each half-cycle of the oscillator output, and means including controlled rectifiers 14,15 for interrupting the supply to the base of the transistor 7 at a time in each half cycle which is variable in accordance with the output voltage of the regulator. In operation, the output voltage is sensed by the resistance chain 29, 30 and is applied to the base of a transistor 33 the emitter voltage of which is held constant by a Zener diode 34. When the output voltage rises above a predetermined value, transistor 33 conducts to render a transistor 40 conductive thereby charging a capacitor 45 to a pre-determined level which then renders a uni-junction transistor 46 conductive; current then flows through winding 50 of transformer 51 to produce, in windings 52 and 53, pulses which render conductive either controlled rectifier 14 or controlled rectifier 15, whereby the base current is removed from transistor 7 so that no current flows to the terminal 4, and the output voltage falls. At the end of each half-cycle of the oscillator output the voltage across a resistor 27 renders a transistor 56 conductive to discharge capacitor 45; this regulating cycle continues so that the output voltage is maintained constant. To provide for protection against over-current faults, the base of transitor 33 is also connected to a circuit including a rectifier bridge 61 and a series transductor 60, which circuit is adjusted so that the output from the bridge 61 only renders transistor 33 conductive when the load current exceeds a predetermined value.
Patent GB-809178-A (GB)
Title: Improvements in or relating to refrigerators
IPC: F25D31/00
Filed: 1957-02-08
Abstract: 809,178. Refrigerating. SIMPSON, A. A., and DENMARK, H. H Feb. 8, 1957, No. 4464/57. Class 29 A refrigerator for use with an engine operating on volatile fuel and provided with a fuel feed line and a vacuum line V connected to the intake manifold comprises a cooling system including an air intake tube 16, a fuel intake tube 22 adapted to be connected to the feed line, both intake tubes terminating in one end of a larger mixer tube 21, and a vacuum tube 15 serving as a cooling coil adapted to be connected to the vacuum line and terminating at the opposite end of the mixer tube. The air intake tube 16 is open to atmosphere at A and before entering the mixer 21 runs within a heat exchange tube 14 which is connected between the vacuum line V and the cooling coil 15. The refrigerator cabinet is formed by an insulated box, fitted e.g. behind the dashboard, to which the heat exchange tube, cooling coil and mixer are secured. The mixer 21 is divided into two compartments connnected by tube 27 by partition 26 in each of which vaporization of the fuel with absorbtion of heat takes place and of which the smaller is the coldest part of the system. Any ice forming will block tube 27 and stop the sytem but this will lead to a rapid rise in temperature of the smaller compartment and consequent quick resumption of operation. In further embodiments air may be dried before entering the mixer tube 21 by leading the incoming air around the outside of an intermediate stretch of vacuum tube 15 before it enters the heat exchange tube. The air may then be divided to flow to separate mixer tubes and cooling coils on the top and bottom walls of the cabinet. Valve means are described which render the system inoperative while the engine is idling.
Patent GB-1170397-A (GB)
Title: Process for preparing Omega-Aminoalkanenitriles
Inventor: IDA KENZABURO
IPC: B01J27/16
Filed: 1968-01-29
Abstract: 1,170,397. Omega-aminoalkane nitriles. TOYO RAYON K.K. 29 Jan., 1968, No. 4521/68. Heading C2C. #-Aminoalkane nitriles are obtained by contacting the corresponding #-lactams with an excess of NH 3  in the vapour phase at a preferred temperature of 270-450‹ C., in the presence of a dehydrating catalyst which is obtained by calcining at 300-550‹ C. a metal salt of a phosphoric acid; the metal being Mg, Ca, Ba, Zn, Cd or Al. In the examples a new compound lambda-aminolauro nitrite has been prepared by reacting lambda laurolactam with NH 3  using Ca 3 (PO 4 ) 2  as the dehydrating catalyst.
Patent GB-1079721-A (GB)
Title: Improvements in or relating to thermostatically controlled mixing valves
IPC: G05D23/13
Filed: 1963-02-05
Abstract: 1,079,721. Valves. J. M. SHEARDOWN. Feb. 4, 1964 [Feb. 5, 1963], No. 4666/63. Heading F2V. A thermostatically controlled mixing valve for controlling the flow of two separate fluid supplies at different temperatures comprises a valve body 1, inlet means 2, 3 for each supply and outlet means 4 for fluid discharge, an apertured sleeve 7 and 8 fixed in the body 1, a plurality of sealing members 9, 10 associated with said sleeve, a spring-loaded piston 11 guided in said sleeve for axial movement therein and having valving surfaces 11<SP>1</SP> co-operating with said sealing members, thermostatic means 14 in the valve body engaging said piston and means 39 to adjust the position of the piston relative to the sleeve co-operating with the thermostatic means so that a mixture of predetermined temperature may be obtained by the adjusting means 39 and the thermostatic means 14 maintains the temperature in the event of flow variations of the separate supplies. In the drawing accompanying the Provisional Specification, cold water enters the body 1 through inlet 2, a non-return ball valve 5 on the radial apertures 18, a groove 19 on the piston, and a duct 20 to a waterway 21. Hot water passes through inlet 3, non-return ball valve 6, a groove 22 on the piston and a duct 23 to the waterway 21 where initial mixing takes place with the cold water. The mixture passes through apertures 24 into the interior of the piston and then in the direction of the arrows 25 around thermostatic means 14 which comprises an outer shell 15 joined to inner bellows 16. Some of the mixture passes between the inner bellows 16 and the piston 13 through axial grooves 26 in the piston and ducts 29 in a baffle-plate 30. The mixture then passes to the outlet 4 through apertures 32. Movement of the piston 11 over inlet aperture 18 controls the cold water supply whilst the same movement by cooperation with an 0-ring seal 9 controls the hot water supply. The initial position of the piston 11 is controlled by piston 13 which is preset by a screw 39 and adjusted by a hand knob 17. Variations from this set temperature cause expansions of the bellows and changes of the positions of piston 11 causing variations in the inlet supplies. If the piston 11 moves so that the hot water supply is completely closed and still continues moving to the left (as shown), the ram effect of the piston will close valve 6. To move the piston again under these conditions, a relief valve 44 connects to the interior of the piston 11. The relief valve also includes a bleeding device in the form of a ring of elastic material yieldably closing outside apertures in the valve body cover to come into use when the cold water inlet is open but the discharge is low. In Fig. 3, the relief valve has been dispensed with and a partition wall 61 has been incorporated so that the hot water inlet is not in direct contact with the region containing the spring 12. An aperture 62 is formed in the wall 63 to provide pressure balancing.
Patent GB-1027796-A (GB)
Title: Method of manufacturing self-copying paper
IPC: B41M5/10
Filed: 1963-02-05
Abstract: A composition for a transfer copying paper (see Division D2) comprises ethyl-cellulose, solid fatty acid, paraffin wax, carbon black, tuluol and refined talc.ALSO:A composition for a transfer copying paper (see Division D2) comprises ethylcellulose, solid fatty acids, parafin wax, carbon black, toluol and refined talc.ALSO:Transfer copying paper comprises a paper base and a coating comprising a colorant dispersed in a solid colour vehicle of non-tacky wax or fatty acid in the form of discrete particles mixed with particles of a solid lubricant and held to the paper by a binder.  The lubricant may be talc and the binder ethylcellulose. The coating may be applied as a dispersion in a solvent for the colour vehicle, e.g. toluol.  In the example, the colorant is carbon black and the colour vehicle is a mixture of solid fatty acid and paraffin-wax.
Patent GB-656612-A (GB)
Title: Improvements in or relating to wall structures built up of prefabricated elements
IPC: E04B2/28
Filed: 1948-02-17
Abstract: 656,612. Toy building elements. MESROUZE, R. L. E. Feb. 17, 1948, No. 4682. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 18, 1948] [Class 132 (iii)] [Also in Group X] Walls for buildings (see Group X) are constructed from identical slabs each formed with two longitudinal ribs spaced at such a distance apart that the end portions of two slabs, placed face to face with the ribs in contact, just fit between the ribs of another slab. The Figure shows a wall constructed from the slabs. Pairs of slabs 10 and 11 are stood side by side, being held at bottom and top between the ribs of identical slabs 14 and 19 laid horizontally with their ribs facing upwardly and downwardly respectively. The Specification as open to inspection under Sect. 91 states that the slabs, when made in an elastic material such as wood and to a small scale, may be used as a constructional toy. This subject-matter does not appear in the Specification as accepted.
Patent GB-677169-A (GB)
Title: Improvements in or relating to driving devices for oscillographic films
IPC: G03B19/18
Filed: 1950-02-23
Abstract: 677,169. Recording-apparatus. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIAL D'USINES A GAZ. Feb. 23, 1950 [Feb. 24, 1949], No. 4697/50. Class 106 (iv). Recording-apparatus comprises a device for driving an oscillographic film on which the movements of one or more recording elements are to be recorded by mechanical or photographic means, having in combination an actuating sprocket wheel operatively engaging the film on the discharge side of the oscillograph, and being mounted directly on the rotor of low inertia factor of an induction motor of balanced phase type; and a retarding sprocket-wheel operatively engaging the film on the supply side of the oscillograph and being mounted directly on a drag-cup or disc-type eddy current magnetic damper, recording on the film being effected between the two sprockets and the device obeying the law: where w t  is the angular speed at time t calculated at starting from rest; C, the motor torque; A, the damping constant; T, the time constant, defined by T = K/A, K being the moment of inertia of all the rotating parts. A perforated film 1 is drawn from a storage roller 2 over a roller 4 where a record is made by a luminous beam 8 from the mirror of an oscillograph, by a sprocket 5 on the rotor 6, in the form of a bell or drum, of an induction motor of balance phases type and is braked by a sprocket 3 on whose spindle is mounted a metallic drag-cup or disc 7, disposed in the gap of a permanent magnet. The speed of the film may be regulated by the driving torque C without modifying the time constant by adjusting the tension at the terminals of the field magnet of the motor, by transformer or additional resistance. This form is applicable to the recording of accidental phenomena such as faults occurring in networks conveying electrical energy. In another form the speed of the film can be regulated by varying the retarding torque of the damper which will modify the time constant but keep the motor torque constant and avoid certain disadvantages of higher speeds.
Patent GB-340840-A (GB)
Title: Improvements in acoustic signalling apparatus
IPC: G10K9/04
Filed: 1930-02-13
Abstract: 340,840. Fog &c. horns. NAAMLOOZE VENNOOTSCHAP MACHINEFABRIEK G. DIKKERS & CO., 15, Haaksbergerstraat, Hengelo, and TIMMER, J. H., 6, Pyrmont-straat, Enschede, both in Holland. Feb. 13, 1930, No. 4879. [Class 13.] Relates to acoustic signalling apparatus of the kind in which a diaphragm is set into vibration by passing a pressure medium between the diaphragm and a seating at the end of an inlet or outlet channel, and consists in weighting or loading the diaphragm at its centre, the weight being positioned at the side of the diaphragm opposite to the seating. As shown, a weight 2 is secured to the diaphragm 1 by a rivet and washer. The weight may be annular, and, preferably, has a greater diameter than the seating. The weight may be integral with the diaphragm.
Patent GB-566888-A (GB)
Title: Improvements in or relating to suction boxes of wire paper machines
IPC: D21F1/50
Filed: 1943-03-26
Abstract: 566,888. Suction boxes of papermaking machines. ERIKSSON, G. March 26, 1943, No. 4905. [Class 96] The wire-cloth 7 of a board- or paper-making machine is supported over the suction opening of a suction box by rollers 8, each roller being supported solely by two backing rollers 6, each of which may be constituted as a number of short lengths spaced along the axis, with bearings held by a number of girders 5. Adjustable stops limit endwise movement of the upper rollers 8. A water-seal is at each edge of the wire-cloth. The rollers 6, 8 may be of hard or soft rubber, wood, steel, or synthetic resinous material, and may have channels, grooves, recesses, or elevations in or on their surfaces.
Patent GB-855636-A (GB)
Title: Improvements in or relating to multiple cylinder presses
IPC: B30B15/24
Filed: 1959-02-13
Abstract: 855,636. Hydraulic presses. EISENUND HAMMERWERK G.m.b.H. Feb. 13, 1959 [Feb. 13, 1958], No. 5127/59. Class 69 (2). A multiple-cylinder press comprises conduits 5, 6 supplying fluid pressure to two working pistons 1, 2, two compensating conduits 20, 21 providing a synchronizing device for the pistons, and two slide valves 34, 35 which control the conduits 5, 6 and have pistons at each end, the pistons 32, 36 at one end of the valves being connected to one compensating conduit 21, and the pistons 33, 37 at the other end being connected to the other compensating conduit 20, whereby the slide valves are displaced to cut-off the fluid pressure to the working piston encountering no resistance or less resistance than the other working piston on descent of the ram 3. The compensating conduits are connected to auxiliary pistons 18, 19 in such a way that upon downward movement of one of the working pistons, the pressure in the fluid beneath its associated auxiliary piston is transmitted to the space above the auxiliary piston associated with the other piston to maintain parallel movement of the ram 3. An increase in resistance to the movement of one of the pistons, say piston 1, results in an increase in pressure in the compensating conduit 21 and a conduit 26 connected to the pistons 32, 36, piston 32 being moved to actuate the slide valve 34 to reduce the fluid supply from a pump 9 to the conduit 5 leading to the working piston 2, the piston 36, which has a larger cross-sectional area than the piston 37 at the other end of the slide valve 35 already maintaining that valve in the open position. Similar increase in resistance to working piston 2 results in the supply to piston 1 being reduced. The conduits 20, 21 are connected by check valves 25, 29 to a high-pressure supply consisting of an accumulator 13 and hand pump 12 which also actuate a piston-andcylinder device 10 to raise the ram 3. A manual- or pedal-controlled valve connects the pump 9 to the conduits 5, 6 or to exhaust. Relief valves 38 prevent excess pressure occurring in the system.
Patent GB-581598-A (GB)
Title: Improved refractory bricks, blocks or like elements
IPC: F27D1/06
Filed: 1945-03-02
Abstract: 581,598. Furnace bricks. C.U.R.A. PATENTS, Ltd., PIRANI, M., and HELLER, A. March 2, 1945, No. 5253. [Classes 51 (i) and 51 (ii)] In a furnace brick or block having an outer facing of one refractory material 'and an inner body portion of a different material, the facing is formed of three sections, comprising two lateral sections disposed on opposite sides of a raised portion of the body section, being secured against outward movement by means of a key or keys fitting into coincident recesses in adjacent sides of the raised portion and the lateral sections and an intermediate section fitting into a narrowing recess formed between the lateral sections. Pins 17, Fig. 1, may fit loosely into recesses 18, 19 across the brick, or alternatively, bars 20, Fig. 3, may fit into longitudinal slots 21, 22. The facing sections 12, 13 may be made of zircon and the body portion 10 of sillinanite, in which case the pins 17 or bars 20 are preferably made of alumina. For convenience of handling, the parts may be temporarily secured together by a protective alumina cement.
Patent GB-1509335-A (GB)
Title: Camper assembly
IPC: E04H15/06
Filed: 1976-02-11
Abstract: 1509335 Tents G C MACISAAC 11 Feb 1976 [11 Feb 1975] 05284/76 Heading E1A [Also in Division B7] A collapsible tent is carried in its collapsed condition on a car roof rack 46 all the parts being contained on at least one panel 10 and preferably between two tray like panels 10, 12 which serve as the base for a bed in the errected tent. The tent is covered with a limp fabric of plastics or canvas and supported by at least two ribs pivoted to one panel at least one of which is telescopic, the or each panel being supported above the ground on two U- shaped legs. The trays may be of glass fibre reinforced plastics. The framework members may be of telescoping aluminium tube. In the collapsed condition the two trays are secured by a clamp and separable hinge and are mounted on the roof rack by a pair of spindle frames 80 each with a screw threaded spindle pin 48 at one end provided with a pad 50 which may be tracked in the lower tray 10 to facilitate moving of the collapsed tent assembly onto and from the car roof. For Figures see next column
Patent GB-548882-A (GB)
Title: Improvements in or relating to plansifters
IPC: B07B1/38
Filed: 1941-04-25
Abstract: 548,882. Sifting apparatus. SPEIGHT, J. April 25, 1941, No. 5387. [Class 117] In plansifters having cabinets o superposed sieves in the form of remov able drawers, the frames of the drawers are provided with passages for conveying the separated parts of the stock from one part of the superposed sieves to another part. The drawers 1, Figs. 4 and 6, are provided with two trays 4, 5 spaced apart underneath the sieve mesh 3. The throughs collected on the tray 4 pass through lateral openings 13 into vertical passages 14 in the frame of the drawers. The passages 14 of the superposed drawers are in line, and the throughs from all the sieves are discharged into a common collecting passage in the cabinet framework, or where stage-working is used, the throughs from the different stages are separately collected. The tailings from each sieve pass by a passage 7 in the drawer to the tray 5, which has an opening 8 delivering them to the next sieve dn the series, or to a final deliver plate. The cabinet arrangement may be as described in Specification 548,881, and may be provided with ducts for exhausting humid air as described in Specification 548,883. The forms of sieves and associated devices described in Specifications 548,885, 548,886 and 548,887 may be utilized.