baber/WOPTO huggingface dataset:
Patent GB-389460-A (GB)
Title: Improvements in or relating to welding
IPC: B23K11/24
Filed: 1931-07-07
Abstract: 389,460. Control systems for consuming devices. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Tarbox, J. P. ; 5025, Schuyler Street, Germantown, Pennsylvania, U.S.A.) July 7, 1931, No. 19604. Convention date, March 27. [Class 38 (iv).] A continuously rotating high-speed commutator 21 that closes the primary circuit of a welding transformer 10 to operate a spot welding electrode 14 for a predetermined short time, is associated with a low-speed commutator 22 that controls the circuit to permit only a single operation of the electrode. On the closing of a press-button switch 48 the commutator 22, by means of interconnected segments 29, 43, energises a relay 46 that closes switches 51, 56 energizing a relay 49 to open a switch 48a in the press-button circuit 47 and substituting a circuit 55 through the switch 56 to the relay 46. The relay 49 also closes a switch 53 to maintain its own circuit closed through a switch 54 which was closed by the operation of the press-button 48. The relay 46 also closes switches 58, 31 that complete circuits through the relay coil 46 and through the commutator 21 when the segment 30 of the commutator 22 is under the brush 28, the segment 43 and brush 47a having broken contact. The segment 30 is long enough to allow a complete make and break by.the commutator 21 to occur before the brush 28 leaves it, and a gap between the rear end of the segment 30 and the forward end of the segment 43 opens the circuit through the relay 46. During the welding a hammer blow is struck by the sliding core 62 of a solenoid 61, the blow being timed by a segment 44 and adjustable brush 59. While the relay 46 is de-energized, the relay 49 remains energized, so that the switches 53, 48a prevent re-energization of the relay 46 until the press-button switch 48 is released and again closed.
Patent GB-1106884-A (GB)
Title: Steroid 20-ketal intermediates
IPC: C07J17/00
Filed: 1966-05-04
Abstract: The invention comprises (i) 5a ,17a -dihydroxy-20-ethylenedioxy -6b -methyl-pregnan-3-one and 20-ethylenedioxy-6b -methyl pregnan-3b ,5a ,17a -triol, (ii) their preparation by transketalizing a 3-acylate of 17a -hydroxy-pregnenolone to form its 20-ketal, epoxidizing this with an organic peracid to form the 5a ,6a -epoxide, and reacting this with a methyl magnesium halide to form the triol of the invention, followed if desired by chromium trioxide oxidation to the 3-ketone of the invention, and (iii) the conversion of the 3-ketone of the invention (a) by heating in acetic anhydride solution containing p-toluene sulphonic acid to 3,17a -diacetoxy-6-methyl-3,5-pregnadien-20-one, (b) by ketal cleavage and epimersation by heating in acetone solution in the presence of a mineral acid to 17a -hydroxy-6a -methyl -progesterone, which may be converted to its 17-acetate, (c) by acid-catalysed ketal cleavage at ambient temperature to the 20-one, following if desired by an acid-catalysed combined ketalization and dehydration to form 17a -hydroxy - 3 - ethylenedioxy - 6 - methyl - pregn - 5- en-20-one, (d) agitation with acetic anhydride containing p-toluene sulphonic acid to give 17a -acetoxy - 5a  - hydroxy - 6b  - methyl - pregnane-3, 20-dione, followed by treatment as in (c) above to give 17a -acetoxy-3-ethylene-dioxy-6 methyl-pregn-5-en-20-one, or (e) conversion to the 3-hydrazone, and boiling this in a solution of potassium hydroxide and ethylene glycol to give 17a -hydroxy-6b -methyl-pregn-4-en-20-one, which may be converted to its 17-acetate.
Patent GB-744936-A (GB)
Title: Carrier current motor generators for voice frequency telegraph transmission
Inventor: JONES HAROLD HOSGOOD
IPC: H04L5/06
Filed: 1953-07-15
Abstract: 744,936. Multi-current generators. JONES & CO. (ENGINEERS), Ltd., W. July 9, 1954 [July 15, 1953], No. 19687/53. Class 35. A homopolar inductor alternator has at least two annular exciting windings and a plurality of laminated rotors mounted on the same shaft and driven by a synchronous hysteresis motor, the rotors having different number of teeth so as to induce currents of different frequencies in the corresponding generating windings. Fig. 1 shows a multi-winding inductor alternator and its driving motor, both of which being located within the same casing 8. The alternator comprises 28 stators having annular laminations 36 carrying generating windings 39, 28 rotors comprising packs of toothed laminations 27 and two annular exciting windings 41, 42. By making the number of teeth of the rotors different in each pack of the rotor laminations, the appropriate frequency of the induced current in the corresponding generating windings 39 is obtained. All the rotors are carried on a tube 18 which is in turn mounted on the common shaft 1. A fixed pack of stampings 43, 431 adjacent the exciting windings 41, 42 respectively are arranged to co-operate with stampings 44, 441 mounted on the shaft 1 so as to provide a return path of the flux. In order to control the frequency of the generated current within close limits the stator winding 17 of the driving motor is supplied from a stable oscillator having a frequency of 120 c.p.s. The generator may be surrounded by vibration and sound absorbent material contained within an outer aluminium case carrying terminals. Specification 692,481, [Group XXXIV], is referred to.
Patent GB-665518-A (GB)
Title: Training apparatus for ball games
IPC: A63B69/40
Filed: 1949-07-27
Abstract: 665,518. Ball projectors. DENGHY, J. A. L. Feb. 16, 1950 [July 27, 1949], No. 19746/49. Class 132 (ii). A tennis &c. ball projector comprises a longitudinal frame member 20 adapted to be trained in azimuth and elevation carrying at its further end (not shown) a cross-piece and two posts to each of which is attached a set of elastic ele.. ments such as rubber strands or springs which converge to and are attached to a sling 26 for a ball 27, the sling being fitted with a button 34 engaging a carriage 33 retractable on the member 20 by a lanyard 31 to stress the elastic elements and cause the sling to grip the ball. The button is releasable from the carriage by a trigger 38 having a lanyard 40. The lanyard 31 is retracted by a hand-winch 32 having a ratchet and pawl one-way action. The frame member 20 has main index marks 30 the space between which corresponds to one turn of the winch and is subdivided, each subdivision corresponding to one tooth of the ratchet. The Provisional Specification is restricted to a detailed description of a ball projector comprising a gun-barrel having a seat for the ball which is projected by a spring or by compressed air. Means may be provided to rotate the ball during its travel along the barrel.
Patent GB-1460148-A (GB)
Title: Data transmission system
IPC: H04W88/02
Filed: 1973-04-26
Abstract: 1460148 Road vehicle signalling LUCAS INDUSTRIES Ltd 15 March 1974 [26 April 1973] 19825/73 Heading G4Q [Also in Division H4] A system which provides aural information to the driver of a road vehicle comprises a receiver 10 and aerial or inductive pick-up device 11 coupled to the input of the receiver for receiving data signals from an external transmitter, a memory unit 13 coupled to the receiver for storing the data received from the transmitter at a relatively fast rate and an electrical voice synthesizer 17 to which said stored data is fed at a relatively slow rate and which provides the required aural information to the driver. The voice synthesizer is defined as a device which models the human voice when electrically stimulated and does not include tape or like recorders. As described, transmission is via an inductive loop but alternatively a radiating transmission line or beamed microwaves may be used. The transmitted messages may be preceded by a normal code or by an emergency code, the receiver being provided with a detector 14 which ensures that messages with an emergency code are always transmitted to the driver but those with normal codes are under his selective control (at switch 16). A message recorded in the memory may be replayed by operating switch 20.
Patent GB-1380332-A (GB)
Title: Earthmoving scrapers
IPC: E02F3/65
Filed: 1972-04-28
Abstract: 1380332 Scraper bowls W E MARTIN 28 April 1972 [2 Nov 1971] 19893/72 Heading E1F An earth scraper comprises a frame extending from a rear propulsion unit 16' to a forward wheel unit 18' and consisting of a pair of transversely spaced members 20 within the transverse confines of which a scraper bowl 28 is adjustably suspended, and stabilizing means arranged externally of the bowl for limiting transverse movement thereof relatively to the frame. As shown, the bowl is towed from the frame by arms 40 extending downwardly from the frame and having pivotal connections 42 with lift arms 36 which have pivotal connections 52 with the sides of the bowl and 58 with lifting cylinders 60. A further cylinder 62 adjusts the pitch of the bowl so that its floor 72 may be parallel to the ground when the bowl is in the lowered position. The cylinders 60 may be operated differentially to cant the bowl laterally, and the pivots 42, 52, 58 incorporate spherical members to allow such canting. Lateral movement of the bowl relative to the frame is limited by engagement of slots in a member 68 on each side of the bowl with the arms 36. The bowl has an apron 74 operated by cylinders 78. Modifications are described in which the cylinder 62 operates through various linkages instead of directly, and in one such modification the lateral movement of the bowl is resisted by the linkage instead of by the slotted members 68. In other modifications, the lateral movement of the bowl is resisted by a modified Watts linkage at one end of the bowl. These latter modifications include arrangements in which provision for adjusting the pitch of the bowl is omitted, and in which the bowl is pushed instead of towed by the frame.
Patent GB-682476-A (GB)
Title: Improvements relating to sealed electric cable connectors
Inventor: FIELD BRAHAM ROWLEY
IPC: H01R9/11
Filed: 1950-08-10
Abstract: 682,476. Cable terminals; fusible cut-outs. ALKALINE BATTERIES, Ltd. July 18, 1951 [Aug. 10, 1950], No. 19894/50. Class 38 (i). A cable connector comprises tags d sweated on to the conductor ends a, b, so as to point in opposite directions, an insulating collar e having slots f which receive the tags when the collar is slid thereover, an insulating plate g inserted between the ends a, band bitumastic material r poured into the open end of the collar e to fill the voids around the conductor ends. The slots f support the tags d and prevent them being broken off. Fig. 3 shows the connector bolted to battery terminals h, k, the connection to the terminal k being through a fuse wire o connected between plates m separated by an insulating bush n, the tag d resting on a further insulating bush j.
Patent GB-613788-A (GB)
Title: Improvements relating to couplings
IPC: F01C17/06
Filed: 1946-07-03
Abstract: 613,788. Universal joints. WEYBURN ENGINEERING CO., Ltd., and ELLIS, L. J. July 3, 1946, No. 19895. [Class 80 (ii)] A universal joint, which may be employed in the drive for a tool, comprises an Oldham coupling in which the main members A, B and the intermediate member C are coupled by balls or rollers D, E engaging cylindrical recesses A', C<1> and B<1>, C<2>, each formed half in the main member and half in the intermediate member, the recesses have their axes radial and are at opposite ends of coplanar diameters which are at right angles. To allow the four balls D, E to lie in one plane, the grooves A<1> are formed in a rib A<2> on the driving member A, which rib projects into a recess C<3> in the intermediate member C, and similarly the driven member B is recessed at B<2> for this purpose. The coupling is enclosed in a cover F having a part-spherical surface F<2> against which bears a ring G having a corresponding surface G<2> and also a flat annular surface G<1> which bears against the member B. Springs A<4>, B3, B<4> centre the joint when not subjected to load. In a modification, the driven member B may extend to the right through an .aperture in the intermediate member and be contained within the driving member to reduce the overall length.
Patent GB-1384791-A (GB)
Title: Laminates
IPC: C08J7/048
Filed: 1972-04-28
Abstract: 1384791 Laminated plastics W R GRACE & CO 27 April 1973 [28 April 1972] 19905/72 Heading B5N A laminate for use as a flexible packaging material comprises a barrier layer of substantially anhydrous polyvinyl alcohol which has at least 80% of its repeating units of formula -CH 2 CH(OH)- and which has a viscosity of 2-60 centipoises at 20 C. as a 4% by weight aqueous solution, and a protective layer having low moisture permeability on each side of the barrier layer, the latter being bonded to at least one protective layer by mean of a polyurethane primer. The protective layers may be uni- or bi-axially oriented and may comprise a copolymer of vinylidene chloride with acrylonitrile, an alkyl acrylate or methacrylate, acrylic acid, methacrylic acid or itaconic acid, polyethylene, polypropylene, EVA copolymer, polyethylene terephthalate, PVC, polyhexamethylene adipamide, polycaproamide, or regenerated cellulose having a nitrocellulose coating. One of the outer layers of the laminate is usually of heat-sealable material such as polyethylene or a blend thereof with polyisobutylene, polypropylene, a copolymer of ethylene with propylene, vinyl acetate or acrylic, methacrylic or ethylacrylic acids or their alkyl ester, or an ionomeric resin. The laminate may be prepared by forming a coating of an aqueous solution of polyvinyl alcohol (usually containing a surfactant), on a substrate which may have been corona treated and primer coated, drying the coating and applying the other protective layer by extrusion coating or by means of adhesive optionally after primer coating.
Patent GB-1292463-A (GB)
Title: Method of moulding battery casings
Inventor: SAVORY ANTHONY JAMES
IPC: H01M50/112
Filed: 1969-04-18
Abstract: 1292463 Moulding battery casings JOSEPH LUCAS (INDUSTRIES) Ltd 13 March 1970 [18 April 1969] 19937/69 Heading B5A A method of moulding battery casings includes the steps of introducing synthetic resin into a mould 11 defining the outer walls and compartment walls of the casing so as to mould these walls, then moving part of the mould 13 and 14 relative to the remainder of the mould so that the mould also defines the base of the casing, and finally introducing further synthetic resin into the mould so as to mould the base of the casing integrally with the walls. The mould 11 comprises a movable die 13 engaged with a base 12, a movable core 14 which is inserted into the die and a stripper plate 18 which disengages the moulded casing from the core 14. An injection device 17, including feed nozzles 15 and a heater manifold 16, are provided to feed the molten resin into the mould 14. The core 14 includes channels which define compartment walls and sludge well walls in the moulded casing.
Patent GB-497687-A (GB)
Title: Sheet feeding apparatus
IPC: B65H9/14
Filed: 1937-07-19
Abstract: 497,687. Feeding sheets. DANIELSSON, Y. A. F..July 19, 1937, No. 19972. [Class 100 (i)] Sheets are fed to a printing or like machine in an overlapping stream which is advanced at a variable speed so as to slow down the sheets 2 as they reach the front stops 3 of the machine. The sheets are separated from a pile 4 by means of a rear separator 6 and are advanced from the pile by a forwarding device 7. The overlapping stream is fed forward by means of a driven feed roller 18 and idler 19, and by feed belt 8 passing over pulleys 10, 9. The radius of the pulley 9 plus the thickness of the belt 8 is equal to the radius of the roller 18, so that the peripheral speeds of the roller and belt are the same. The shafts of the pulley 9 and roller 18 are geared together, and the drive for both is obtained from a gear-wheel 31 mounted on a shaft 32 which is the driving- shaft of the feed mechanism. The wheel 31 and its associated wheels are duplicated at each side of the machine. To obtain a variable drive, the gear 31 drives gears 30, 29 mounted in a link 33 pivoted about the shaft of gear 31, and the gear 29 is geared to a gear 16 on the shaft of the roller 18 by means of a gear 43 mounted in links 21, 26 pivoted respectively to the shafts of the gears 29, 16. The gear 30 is formed with a slot 37 in which is adjustably secured a crank pin 38 connected to a pitman 41 pivoted at 42 to the machine frame. The crank 38 causes the link 33 to oscillate about the shaft 32 and so a variable motion is given to the gear 30 owing to its rolling to and fro along a portion of the periphery of gearwheel 31. The gear-wheel 43 also moves to and fro over the gear 16, so that the final movement given to the roller 18 is a variable one, and it can be adjusted by varying the position of the crank 38.
Patent GB-1139189-A (GB)
Title: Press frame
IPC: B30B15/04
Filed: 1966-05-09
Abstract: 1,139,189. Hydraulic presses. E. W. BLISS CO. 9 May, 1966 [20 May, 1965], No. 20368/66. Heading B5F. [Also in Division B3] An embossing, coining &c. power-press comprises a stationary platen H connected to the ends of columns D by diagonal struts 27, and tension members 29 each connected between adjacent columns. Tubes 16 at the ends of the struts are clamped against shoulders 22 on the columns by nuts 24. The columns may be prestressed, as by local heating, before the nuts are tightened. Dies I, J are carried by the platen and a slide G.
Patent GB-1079608-A (GB)
Title: New unsaturated amines and process for their manufacture
IPC: C07C67/00
Filed: 1966-05-09
Abstract: Compounds of the general formula <FORM:1079608/C2/1> (wherein alk represents an alkylene radical, R represents an unsaturated aliphatic hydrocarbon residue and alk and R together contain at least four carbon atoms) and their acid addition salts are prepared by reacting a corresponding 1-halo-2-hydroxy-3-[o -(R-alk-O)-phenoxy]-propane or the corresponding 3-[o -(R-alk-O)-phenoxy] - 1,2 - epoxypropane with isopropylamine, optionally followed by salt formation and/or resolution.  The preparation of o-(b -methallyloxy)-phenol and 3 - [o - (b  - methallyloxy) - phenoxy] - 1,2-epoxypropane is described.
Patent GB-731892-A (GB)
Title: Improvements in carburetting systems for internal combustion engines
IPC: F02M23/10
Filed: 1953-07-22
Abstract: 731,892. Spray carburetters ; auxiliary air admission. SOLEX. July 22, 1953 [July 23, 1952], No. 20379/53. Classes 7(2) and 7(3). A device for temporarily reducing the richness of the mixture supplied by a carburetter, particularly when the engine is being restarted whilst hot, is brought into and out of action by a thermo-sensitive device constituted by a bimetallic disc-shaped element 9 having approximately the shape of a portion of a sphere. the concavity of which element changes in direction at a temperature which is higher when the temperature to which it is subjected is rising than when this temperature is dropping. In Figs. 3-5 extra air is admitted to the carburetter, or, as shown, to the induction pipe through a flange member 7 having a passage 10 normally closed by the bi-metallic element 9 arranged adjacent the exhaust manifold 6, the extra air being supplied from the carburetter intake pipe through a passage 16. During normal running the flow of cooling air maintains the element 9 cool and in the position shown in Fig. 3 closing the passage 10. When the engine is stopped the temperature of the exhaust manifold 6 and associated engine parts rises rapidly and at a temperature of about 80‹C. the curvature of the element 9 suddenly reverses, as shown in Fig. 4, whereby the passage 10 is connected through the passages 14 to the extra air supply passage 16 the air supply through which is preferably filtered by the carburetter filter 5. The element 9 remains in its inverted position for a considerable time, e.g. for twenty to thirty minutes, until the engine temperature has dropped to about 40‹C., so that if the engine is restarted during this period extra air enters through the passage 10 and dilutes the rich mixture which is formed in the intake manifold by fuel expelled from the carburetter nozzles by the rise in engine temperature when it is stopped. The flow of extra air past the element 9 quickly reduces its temperature so that a few seconds after restarting, its curvature is again reversed and the passage 10 is closed. A light spring 13 prevents small pressure fluctuations in the intake pipe forcing the valve off its seat. In a modification the curved element 9 is connected to a valve member which controls the passage 10 and in a further embodiment the element 9 reduces the fuel supply from the fuel jet system if the engine is started whilst hot.
Patent GB-275795-A (GB)
Title: A composition and a process for manufacturing the same
IPC: H01B3/48
Filed: 1926-08-18
Abstract: 275,795. Friedlander, H. Aug. 18, 1926. Fibrous plastic compositions.-Textile fibres such as cotton, silk, hemp, flax, or asbestos are formed into coherent felts which are impregnated with an artificial resin, and the mass is subjected to a hardening treatment, for example, pressure and heat, A proportion of cellulose, such as wood pulp may be added to the felt. The felt may be simply impregnated with a solution of the resin, or a proportion of powdered resin may be added to the fibres before they are felted. Suitable resins are condensation products of aldehydes and phenols, carbamides, phenanthiene, anthracene, and the like; natural resins are excluded.
Patent GB-456995-A (GB)
Title: Improvements in illuminated signs
IPC: G09F13/00
Filed: 1935-07-18
Abstract: 456,995. Thermal switches. OCTRON, Ltd., and HOLT, W., Tyburn Road, Erdington, Birmingham. July 18, 1935, No. 20440. [Class 38 (v)] [See also Group XVIII] A thermal switch for flashing the lamps of a sign comprises a resistance coil 16 and a bimetallic strip 17, the current passing initially through the coil which is of such resistance that the lamp is unlighted. When the coil becomes heated, the strip 17 moves towards the coil to close contacts 18, 19, the current then passing through the strip to light the lamp.
Patent GB-422858-A (GB)
Title: Improvements in radio receivers employing automatic volume control
IPC: H03G3/26
Filed: 1933-07-20
Abstract: 422,858. Valve circuits for wireless reception. COLE, Ltd., E. K., Ekco Works, Priory Crescent, Southend-on-Sea, and MARTIN, A. W., 1, Thames Close, Leigh-on-Sea. July 20, 1933, No. 20463. [Class 40 (v)] An amplifier is followed by a diode detector which is disabled when signals of below a predetermined intensity are received, the cathode of the diode being connected to the cathode circuit of the amplifier whereby a change in the internal impedance of the amplifier, determined by the incoming signal, controls the release of the detector. As shown the amplifier A feeds the diode portion of the valve B through the coupling 4, the rectified signals appearing in the load resistance 5, and being applied to the triode portion of valve B through a condenser and potentiometer 8. The detector circuit also includes the cathode resistance R of valve A which when no signal is being received produces sufficient direct current potential to disable the detector. A second diode rectifier D fed from the valve A through a condenser 3 provides automatic volume control potentials which are applied through a resistance 2 to the grid of the amplifier. When signals of above a predetermined amplitude are received the impedance of valve A is thus lowered, the voltage across resistance R is diminished and the detector B released. In a modification (Fig. 2, not shown) the delay voltage on the diode B may be regulated.