baber/WOPTO huggingface dataset:
Patent GB-234936-A (GB)
Title: Improvements in electrical synchronising apparatus
IPC: H02J3/42
Filed: 1924-03-15
Abstract: 234,936. Field, A. B., Ross, T. W., and Metropolitan-Vickers Electrical Co., Ltd. March 15, 1924. Systems depending on the use of two or more machines.-In a synchronizing arrangement employing induction type relays actuated by coils supplied from bus-bars and incoming machines respectively, and arranged to give a maximum torque on the movable member of the relay when the voltages are in phase and subsequently synchronized, two additional magnetic systems are used acting upon the same or separate movable members, and producing torques opposed to that referred to which reach their respective maxima when the machine voltage leads and lags behind the bus-bar voltage by a predetermined angle; thus the actuating circuit for the machine switch cannot close if the machine voltage leads or lags in respect to the bus bar volts more than the predetermined angle. An auxiliary relay or relays prevent closure of this circuit if the difference between the two voltages is excessive or alternatively, if either voltage is excessive. Two relays 1, 2 may be used, their contacts 19, 34 being in series with the actuating coil 36 of the machine switch and the contacts of the voltage control relay or relays 42. The magnetic systems 6, 21 of these relays have coils 10, 12, 25, 27 arranged to produce fluxes in quadrature and therefore torque maxima when the machine and bus-bar volts are in phase, the torques thus produced being resisted by controlling springs. Each relay is, according to the invention furnished with an additional similar magnetic system producing an opposing torque the maximum value of which occurs in one relay prior to, and in the other later than, phase-coincidence. Each additional system 7. 22 has an inductive winding 15, 30 on its core 14, 29 and a coil 17, 32 on the core 16, 31 with the usual compensating coil (not shown). The coils 17, 32 are adjusted by the aid of impedances 18, 33 so that when the volts of the machines 5 are in phase with those of the bus-bars 4 the fluxes they produce are respectively displaced from the fluxes produced by the coils 15, 30 by 90‹ plus and minus a predetermined small angle. They therefore fall in quadrature with the said fluxes when the machine volts lag and lead respectively on the bus-bar volts and at these points exert their maximum counter torques. The torque curves of the magnetic systems are shown in Fig. 2 whence it will be seen that both relays can only be closed when the phase relationships lie between the limits indicated by the line 50. The four magnetic systems may be reduced to two, acting upon the same movable member.
Patent GB-933286-A (GB)
Title: Improvements in and relating to electro-precipitation
Inventor: DARBY KENNETH
IPC: B03C3/013
Filed: 1961-03-23
Abstract: 933,286. Electrostatic precipitation. LODGECOTTRELL Ltd. March 15, 1962 [March 23, 1961], No. 6720/61. Class 117. A method of preventing reverse ionization from the collector plates of an electro-precipi. tator comprises the steps of causing a gas-borne dispersion of anhydrous sulphur trioxide gas to mingle with a stream of gas-borne particles flowing to the collecting chamber of the precipitator, and regulating the volume of anhydrous sulphur trioxide in the gas-borne dispersion to prevent formation of sulphuric acid. In the embodiment shown in Fig. 1, liquid sulphur trioxide is fed through a conduit 11 to a pressure vessel 12 to a level 15 shown in a sight glass 14. The vessel is heated electrically to regulate the volume of sulphur trioxide vapour which passes up a conduit 17 to a cross-header pipe 18 with branches 19 leading into a flue 20 which carries the gases to the precipitator (not shown). Air is admitted to the conduit 17 through a conduit 21 in turn fed from a conduit 24 by way of a chamber 22 with a heater element 23. Valves 26, 27 are provided to control the flow in the conduit 17 and samples may be taken through a valve 28. The embodiment shown in Fig. 2 is for continuous operation, having two reservoirs 30a, 30b which are alternately drawn upon whilst the other is refilled. The reservoirs contain liquid sulphur trioxide, which passes through a flowmeter 32 to a weir-type feeder 33 having a vertical conduit 34 with a serrated upper end 37, so that the sulphur trioxide flows down the conduit 34 and is heated by a heater 36 before passing into a cone 35 heated by a heater 38. The sulphur trioxide is vaporized and passes to the flue 20 as before. An inert gas, e.g. nitrogen, may be supplied in place of air to the conduit 24.
Patent GB-1079761-A (GB)
Title: Improvements in rose plates,key plates and bell push bases
IPC: E05B15/02
Filed: 1963-02-20
Abstract: 1,079,761. Rose plates; stud and socket fastenings. W. J. CAMPBELL. May 4, 1964 [Feb. 20, 1963], No. 6767/63. Headings E2A and E2B. An attachment plate, e.g. a rose plate, key plate, or bell push base, comprises a flange 1, a shank 2 projecting from a main face 3 of the flange, a passage 5 formed through the plate, fins 4 projecting from the shank at positions spaced from the flange, and means provided on the flange whereby the plate may be rotated about the longitudinal axis of the shank. In one embodiment the shank 2 is circular and has two diametrically opposed fins 4 with rearwardly raked and chamfered leading edges 9. The passage 5 is circular and passes through both the flange 1, and the shank 2 and is coaxial with the shank. The means for rotating the plate is two diametrically opposed flats 6 engageable by a spanner. In a second embodiment the leading edges 9 of the fins are curved, and the means for rotating the plate are recesses in, or pimples on the flange 1 engageable by corresponding pimples or recesses of a driver tool. The means for rotation is alternatively constituted by a non- circular passage 5 engageable by a correspondingly shaped tool. To attach the plate to a support a hole is bored therein to receive the shank 2, and recesses are formed in the sides of the hole to receive the fins 4. The plate is then attached to the support by inserting the shank 2 and fins 4 in the hole and recesses, and rotating it by the tool so that the fins 4 enter into securing engagement with the support. To prevent unintentional rotation of the plate when in position a screw is driven into the support through a hole 10 in the flange 1.
Patent GB-733246-A (GB)
Title: Improvements in power presses
Inventor: CHALLEN HENRY DENIS
IPC: B30B7/04
Filed: 1953-03-12
Abstract: 733,246. Metal-working presses. TAYLOR & CHALLEN, Ltd. March 10, 1954 [March 12, 1953], No. 6789/53. Class 83 (4). A power press has a main punch or tool connected by a coupling 19, which may be adjustable, to the main press ram 15 which is actuated from the crankshaft 10 through a connecting rod 12 whose effective length is adjustable, and at least one side punch or tool movable at right angles to the main tool and actuated from the ram through a compound link and crank mechanism 20, 23, 26, 28, 29, 31, 33 which causes the side tool to have an initial movement at relatively high speed and a final movement at relatively low speed and with maximum power. Two opposed side tools are provided. The connecting rod 12 is mounted on the crank pin 11 through an eccentric sleeve 14 which is adjustable angularly. The vertically reciprocating ram 15 is connected at 21 to links 20 each coupled at 22 to a link 23 pivoted on a fixed pin 24. The link 23 is connected at 25 to a link 26 coupled at 27 to a crank arm 28 rigidly mounted on the crank pin 29 of a crankshaft 30. The crank pin is connected by a connecting rod 31 of adjustable length with a side tool holder 33 sliding in guides 34. The links 23, 26 and 26, 28 form a pair of toggle linkages which cause the side tools to have final slow movements with high pressure. The adjustment of the eccentric 14 may be such as to cause the side tools to have been slightly retracted at the end of the stroke of the main tool. An upwardly moving bottom tool may also be provided. Thrust pads 18, 35 are used to relieve the load on the pivot pins.
Patent GB-782644-A (GB)
Title: Improvements in or relating to the production of light metal castings having insertslocated therein
IPC: B22D21/00
Filed: 1956-03-05
Abstract: Inserts, for light metal castings, which have been aluminized by immersion in a bath of molten aluminium, are treated in a bath wherein the superfiical aluminium oxide skin is dissolved and a protective metal coat deposited on the aluminium, before they are incorporated in castings.  The aluminized inserts may be treated in solutions containing e.g. zinc, cadmium, tin in the form of their silico- or borofluorides or lead may be applied by dipping them at room temperature in an aqueous solution of lead silico-fluoride with perhaps the addition of fluoro-silicates or -borates of light or heavy alkaline earth metals.  Basic stannate and zincate baths may also be used or the protective metals may be deposited electrolytically.  The aluminized inserts are degreased before treatment.
Patent GB-218973-A (GB)
Title: Valveless air-pump
IPC: F04B7/06
Filed: 1924-03-18
Abstract: 218,973. Etablissements Samga et Bavox RÚunis, (Assignees of Soc. Anon. Bavox). July 13, 1923, [Convention date]. Crank linkages. - A valveless air pump comprises pistons having a tacking or helical movement, the crankshaft passing through the pistons and being connected to them by bearings sliding longitudinally on the shaft and provided with extensions forming pivots projecting into holes in the pistons parallel to their axes. The motion alternately covers and uncovers the inlet and delivery ports. The Figure shows one pair of pistons e of a four-cylinder pump, operated from a crank-shaft b on one crank of which slides a sleeve f carrying pivots f<2> within eccentric recesses g in the pistons. The motion thus given to the pistons brings ports h, i formed in their ends alternately into coincidence with corresponding ports c, d in the cylinders.
Patent GB-732675-A (GB)
Title: Improvements in and relating to spinning mules
Inventor: CHAMBERLAIN NORMAN HENRY
IPC: D01H3/06
Filed: 1952-03-18
Abstract: 732,675. Spinning-mules. T. M. M. (RESEARCH), Ltd. Feb. 6, 1953 [March 18, 1952], No. 6974/52. Drawings to Specification. Class 120(2). A spinning mule provided with a single variable speed spindle driving mechanism operable during the outward and inward runs of the carriage has two electrical control systems, one operative upon each run, and each comprising a set of voltage shaping circuits that are selectively applicable to the driving mechanism at different times in the machine cycle. The drive to the spindles is preferably through an electromagnetic slip coupling under the control of switches actuated by the carriage, further switches operated by a rotary control drum and the voltage-shaping circuits that include a spindles stop circuit, a spindles slow circuit, a spindles fast circuit and a spindles wind circuit, the latter being variable according to the position of the counterfaller. The subject-matter of the Complete Specification is included in that of Specification 732,665. Specification 732,666 is also referred to. According to the Provisional Specification, the driving mechanism may include a variable speed electric motor or a variable transmission that may be electrical, electromagnetic or hydraulic.
Patent GB-236494-A (GB)
Title: Improvements in the manufacture and production of fertilizers
IPC: C05B7/00
Filed: 1925-03-14
Abstract: 236,494. Johnson, J. Y., (Badische Anilin & Soda Fabrik). March 14, 1925. Manures.-A water-soluble fertilizer is formed by mixing urea, ammonium phosphate, and potassium nitrate and/or sulphate. In an example given, 215 pounds of potassium nitrate and 190 pounds of di-ammonium phosphate, both well dried are mixed, and 70 pounds of dry urea are added. The fertilizer may be pressed into tablets or cakes of any desired weight.
Patent GB-807960-A (GB)
Title: Improvements in or relating to electrically-operated heating appliances provided with circulating fans
Inventor: SHERLOCK JOHN EDWARD
IPC: G05D23/275
Filed: 1956-03-06
Abstract: 807,960. Switching systems for resistance heaters. BRITISH THERMOSTAT CO. Ltd. March 5, 1957 [March 6, 1956], No. 7070/56. Class 38 (4). [Also in Group XI] An air heater with a fan has an electric heating element H1 controlled by a thermostat T1, a second (auxiliary) heating element H2, a twospeed fan motor M, and a separate dropping resistor R 1 for the motor so arranged that when the motor is set to run at the lower speed, both heating elements are connected in the circuit and at the higher speed at least one element is disconnected. The fan motor M, e.g. a singlephase shaded-pole induction motor, is connected across the supply in series with the dropping resistor R1. The heating elements H1, H2 are connected in parallel to a fixed contact S2 of a switch having an arm S, so that when the arm S is moved to the low-speed position with the resistor R1 in series with the fan motor M, both heating elements are in circuit; but when the arm S is moved to contact p1 the resistor R1 and both elements H1, H2 are deenergized and the fan delivers cold air. The thermostat T1 may be adjusted to a low or high temperature. A pilot lamp L connected across a load resistor R2 in series with the auxiliary heater H2 is lit when the latter is energized. A thermally responsive cut-out T2 is included on the live side of all the circuit components to disconnect the supply completely should the temperature rise to a dangerous level, e.g. if the air outlet is blocked. When the thermostat T1 is set to a low temperature it keeps the heater H1 out of circuit. In Fig. 2 the main heater H1 and its controlling thermostat are connected directly across the line following the thermal cut-out T2, so that when the switch S is operated to disconnect the motor resistor R1, only the auxiliary heater H2 is positively disconnected.
Patent GB-625475-A (GB)
Title: A draught excluder for a door
IPC: E06B7/20
Filed: 1947-03-14
Abstract: 625,475. Draught excluders. DAVIES, D. E., and STEELE, T. March 14, 1947, No. 7095. [Class 20(iii)] A draught excluder for a door comprises a floor-engaging strip 13 suspended from a link 29 the opposite ends of which are connected to other links 28. The other end of one link 28 is pivoted to a fixed point and the other end of the other link 28 is pivoted to a spring-pressed plunger 17 which projects from the door when the latter is open and contacts the jamb or a stop thereon when the door closes. In a modification the central link 29 is omitted, the links 28 being pivoted directly to the strip 13 and in a further modification instead of one link 28 being pivoted to a fixed point, both are pivoted to spring- pressed plungers.
Patent GB-481545-A (GB)
Title: Watch combined with latch-key
IPC: E05B19/04
Filed: 1937-03-11
Abstract: 481,545. Watch and latch key. GOWLAND, C. J. March 11, 1937, No. 7180. [Class 44] [Also in Group XVIII] A watch is combined with a latch-key by being mounted in the handle or bow thereof by screw or clamping means.
Patent GB-102440-A (GB)
Title: Improvements relating to Lock Nuts.
Inventor: PRATT JOHN JOSEPH
IPC: F16B39/08
Filed: 1916-05-23
Abstract: 102,440. Pratt, J. J., and Muddyman, E. May 23, 1916. Locking nuts.-A sheet-metal cap a shaped to fit the nut is placed over it and is provided with a bar a<1> at the upper end which drops into a transverse groove in the end of the bolt. The cap is secured in position on the nut by spring members a<2>, a<3> which grip the thread on the bolt and can be pressed apart, to allow the removal of the cap, by projections a<4>, a<5>. The cap may be bent from wire as shown in Fig. 4, instead of being made from sheet metal.
Patent GB-216256-A (GB)
Title: Improvements in jigging conveyors for feeding packing material into excavations
IPC: E21F15/06
Filed: 1923-03-16
Abstract: 216,256. Knapp, W. March 16. 1923. Jigging conveyers. - In jigging conveyers for feeding packing material into excavations in mines, the delivery end can be swung laterally, raised and lowered, and extended or contracted. The end 20 of the trough section 3 overlaps the inner end 51 of the delivery section and is connected thereto by a vertical pivot 22. Hinged flaps 23 bridge the gaps between the walls of the trough and keep the material on the conveyer when the parts are out of alignment. The end section 51 is mounted on wheels 21' and is connected by a horizontal hinge 52 to a trough section 24 which is slidably engaged with the outer end section 46. The sections 24, 46 are connected by studs 54 engaged with a series of holes. The section 46 rests on a roller 19 which is supported by toothed wheels 11 mounted on a carriage at opposite sides of the trough. The wheels 11 are rotated to raise or lower the section 46 bv a hand crank 17 and gears 15, 14, 13. The gear 15 can be locked by a pawl 18. A hauling rope 47 and winch 32 are used for extending and contracting the conveyer. Each wheel 31 of the carriage is mounted in a hanger which can be rotated on a vertical pivot 33 by a handle 34.
Patent GB-540861-A (GB)
Title: Improvements in and relating to machines for marking bevelled or conical surfaces
IPC: B44B5/00
Filed: 1940-04-30
Abstract: 540,861. Marking curved surfaces. PRYOR & SON, Ltd., E., and THROP, A. April 30, 1940, No. 7721. [Class 100 (ii)] [Also in Group XXII] In a machine for marking conical or bevelled surfaces such as fuse caps of shells, the surface 18 to be marked is mounted in a work-holder 17 carried by a supporting housing 12 in such a manner that the axis of the cone passes through the axis of a rotating marking-die 27 mounted in a housing 13. The housings 12, 13 are both angularly adjustable around a groove 14 in the head 11 of the machine frame. The die 27 is normally pressed outwards away from the work-holder by a spring 25, Fig. 4, and is moved into operative position by a treadle and lever 29. The die is rotated by a lever 39 which rotates the die by means'of a split gripping ring which can be tightened by a screw and gives the die a partial rotation limited by stops. A crown wheel 23 and a bevelled gear 19 give the surface 18 a true rolling motion relatively to the die. In modifications the work-piece can be gripped in position by collets which grip external or internal parts of the work-piece, and in one of these modifications the work-holder is rotated by a lever operating through a one-way ball-and-ratchet clutch, and adapted to cause the collet to grip the work while the marking operation takes place. In a further modification the work-holder causes the conical surface to move over a stationary marking-die, and by means of a trigger which engages a hole in the work-piece repetitive markings can be made in exact register upon successive identical work-pieces.
Patent GB-421256-A (GB)
Title: Improvements in processes for producing photo-electric cells
IPC: H01J40/06
Filed: 1933-03-14
Abstract: 421,256. Photo - electric cells. PRESSLER, M. A. E., 98, Elisenstrasse, Leipsic, Germany. March 14, 1933, No. 7752. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 15, 1933]. [Class 39 (i)] The foundation for a light-sensitive layer is formed with a "spongy-velvety" surface, for example, by a coarse flaky deposit, or by depositing metal electrolytically in spongy form. The surface is subsequently oxidized and treated with alkali metal vapour, and the cell is filled with gas.
Patent GB-1286628-A (GB)
Title: Improvements relating to apparatus for feeding and dispensing liquids
Inventor: MARMONT ANTHONY
IPC: F04B53/10
Filed: 1969-02-13
Abstract: 1286628 Dispensing liquids CARTERS VENDING DISPENSING Ltd 26 Jan 1970 [13 Feb 1969] 7755/69 Heading A4T [Also in Division F1] In a soft drinks vending machine, the postmix syrups is contained in a disposable bag 6 and is passed to a tank 58 for dilution via a tube 20 and an electrically actuated pump 40. The bag is fitted within a rigid container, and has an aperture 16 with a raised annular portion 4 on to which a cap 12 carried by tube 20 is sealingly screwed. A non- return valve is provided at the lower end of tube 20, and the motor 44 driving the pump may be coin operated. The dip tube, Fig.3 (not shown) may be fitted with electrodes which sense when the tube begins to empty and serve to de-energize the pump at such times.
Patent GB-726239-A (GB)
Title: Pre-cast building slabs
IPC: E04C2/38
Filed: 1953-03-20
Abstract: 726,239. Building slabs. BATU. March 20, 1953, No. 7786/53. Class 87 (1). In a cement building slab provided with a wood or metal frame 1 to which reinforcing wires 3 are secured, one or more dovetailed grooves 2 are formed in the inner periphery of the frame to key with the cement of the slab. Transverse holes 6 are provided in the frame for attachment of the slab to a supporting structure. The wires 3 have dovetailed ends 4.
Patent GB-140427-A (GB)
Title: An improved gas-filled electric incandescent lamp
IPC: H01K1/14
Filed: 1920-03-16
Abstract: 140,427. Siemens & Halske Akt.-Ges. Sept. 20, 1913, [Convention date]. Residual gases; filaments.-A gas-filled lamp has a coiled carbon filament the turns of which are arranged close together to diminish convection. The filament may be in the form of a relatively large spiral with adjacent turns nearly touching; it may be held between conductors and anchored at intermediate points.
Patent GB-374520-A (GB)
Title: Improvements in or relating to apparatus for use in making combined sound-record andcinematograph films
IPC: G03D15/00
Filed: 1931-03-13
Abstract: 374,520. Combined sound-record and coloured picture films. BONAMICO, C. and SPICERS, Ltd., 19, New Bridge Street, London. March 13, 1931, No. 7836. [Class 40 (ii).] Apparatus for use in the manufacture of film strips adapted to serve as combined sound record and coloured kinematograph picture films, comprises a trough 4 for a dye-resisting material, a guide 8 for the film, and a shaft 5 carrying a plurality of rollers 16 arranged to dip into the liquid in the trough and to contact with the film on the guide. The rollers 16 are adjustably mounted on the shaft 5 which is mounted in end bearings 6 adapted to be adjusted by means of hand wheels 7 on threaded shafts 12 to vary the distance between the rollers and the guide 8. The rollers are of a width equal to twice the width of the sound track on a standard film so as to form a number of coated tracks 18 as shown in Fig. 3, and the distance between adjacent rollers is equal to twice the width of a standard film plus a percentage amount to compensate for shrinkage of the film during subsequent operations. The film strip may be of cellulose acetate coated with a layer of collodion which may be dyed green. The protective material may be of bitumen dissolved in benzole. The film band may be adjusted laterally during coating by manual means or automatically by an electric relay or photo-electric device. Such automatic means may comprise the arrangement under each edge of the film, if the later is dyed green, or under the edges of two of the coated tracks of a lamp adapted to co-operate with a photo-electric cell disposed in corresponding position above the film. The light to one of the cells is cut off or diminished when the film deviates to one side or the other and a relay is then operated to bring the film into alignment. Specifications 22160/14, [Class 140, Waterproof &c. fabrics], 322,432, [Class 98 (ii), Photographic processes &c.], 335,899, [Class 40 (ii), Phonographs &c.], and 356,816 are referred to.