baber/WOPTO huggingface dataset:
Patent GB-1177623-A (GB)
Title: Improvements in or relating to the Production of Metallic Compacts.
Inventor: ELLIOTT JOHN ERIC
IPC: B22F3/10
Filed: 1966-01-21
Abstract: 1,177,623. Powder metallurgy. STANDARD TELEPHONES & CABLES Ltd. Jan. 20, 1967 [Jan.21, 1966], No.2885/66. Heading C7D. In a process of making a sintered metal compact e.g. Ni-Fe, the metal powder is pre-sintered in a reducing atmosphere in a die having a smooth base inner surface of silica or a borosilicate glass and the compact is then fully sintered. As shown in Fig. 2, a mixture of Ni-Fe powder of 5 micron size is placed in a die comprising side members 10 with flanges 11 and an outer base-plate 13 screwed to flanges 11. The base-plate 13 supports an asbestos sheet 15 and a plate 16 of borosilicate glass on silica and the powder rests on this plate. The die size is such as to produce a sintered compact 2 feet x 9 inches x 1 inch. Pre-sintering is effected at 500‹ C. in hydrogen. The compact is then transferred to a furnace and fully sintered in hydrogen. Cold rolling is then carried out on the sintered compact.
Patent GB-1000849-A (GB)
Title: Improvements in racks for holding circuit boards
Inventor: VERDON-ROE GEOFFREY
IPC: H05K7/14
Filed: 1963-01-23
Abstract: 1,000,849. Mounting electrical equipment. VERO ELECTRONICS Ltd. April 1, 1964 [Jan. 23, 1963], No. 2928/63. Heading H1R. [Also in Division H2] A rack for holding a plurality of printed circuit boards 18, which may be constructed as described in Specification 883,870, comprises a pair of guide bars 15 for each circuit board mounted opposite one another on rods 11 between two end plates 10. The guide bars 15 are spaced from one another along the rods 11 by spacers 14, and have slots 17 to receive the edges of the circuit boards. Each circuit board plugs into a female connector member 20 which is mounted on rails 26 by means of saddle washers 29, 30 and bolts 23. Rails 26, of metal, nylon &c., are mounted in pairs between end plates 10 by brackets 27, each of which either has a threaded hole to receive a bolt 28, as shown, or has a threaded protrusion which passes through a hole in plate 10 to engage a nut on the outside of the plate. The brackets may have cross-holes to receive clamping bolts, rivets &c., for the rails.
Patent GB-1208983-A (GB)
Title: Improvements in or relating to vehicle handle and sun visor assemblies
IPC: B60J3/02
Filed: 1968-01-19
Abstract: 1,208,983. Sun visors; hand grips. GEB. HAPPICH G.m.b.H. 19 Jan., 1968 [18 Feb., 1967], No. 2987/68. Headings B7J and B7L. The interior of a motor vehicle is provided with a padded sun visor 3 and an elastically yielding handle 4 which occupies a cut-out 6 in the visor when the visor is in its position of non-use, the visor and handle having common supports 5 to which the handle is fixed and about which the visor pivots. A ridge 3c of the visor and the gripping portion are in the same plane when the visor occupies its position of non-use and the visor in this position is located in a recess 7 within the vehicle roof padding.
Patent GB-1254847-A (GB)
Title: Improvements in and relating to pot broaching
Inventor: ARCHIBALD RONALD LEONARD
IPC: B23D41/06
Filed: 1968-01-19
Abstract: 1,254,847. Gear cutting; machine tool details. LAPONTE MACHINE TOOL CO. Ltd. 21 April, 1969 [19 Jan., 1968], No. 3069/68. Headings B3B and B3L. A broaching machine for broaching the peripheries of gears or other centrally apertured components comprises a frame 1, 2, a hollow internally toothed broaching tool 40 mounted for vertical machining movement on the frame and work supporting and locating means comprising an elongated work support member 37 which is movable vertically to abut a coaxial locating member 6, means being provided to rotate the work support member 37 to lock it to the locating member with a workpiece 7 clamped therebetween. Vertical movement of the tool 40 is effected by hydraulic cylinder means (not shown) and of the work support member 37 by hydraulic cylinder 10, the piston-rod 13 of which is connected to the member 37. The latter has at its upper end a projecting pin 38 arranged to pass through a workpiece 7 and to enter a complementary bore 8 in the locating member 6, the pin and bore having matching quick-acting threads to provide a locking action upon rotation of the support member 37. Rotation of the member 37 is effected by means of an hydraulic cylinder 25 the piston-rod of which is connected to rack-and-pinion means in a gear case 15 which is adapted to move vertically with the work support 37. During the working stroke of the tool 40 the upper end of its hydraulic cylinder is connected to the lower end of the cylinder 9 in order partially to balance the cutting load thereby relieving the threaded pin 38, 39 of excessive load.
Patent GB-660578-A (GB)
Title: Improvements in or relating to a press, particularly a veneering press
IPC: B27D3/02
Filed: 1948-02-03
Abstract: 660,578. Hydraulic presses. BERTHELSEN, V. Feb. 3, 1948. [Oct. 23, 1945] No. 3080/48. Class 69 (ii). [Also in Group VIII] A hollow press table 2 has top and bottom walls with side walls 11, 12, and end walls 15, 16 rigidly secured thereto, spaced internal partitions 13 welded to opposite end walls and each welded by its edges to the top and bottom walls, openings provided alternately at opposite ends of the partitions so as to provide a zig-zag channel for a press heating fluid, e.g. steam between ports 10. The partitions 13 may alternately engage the walls 15, 16, as shown or they may extend from one end wall to the other, openings being formed at opposite ends of alternate partitions to form the channel. In a press, the tabel 2 is fixed in a welded frame construction having vertical columns 1, upper transversal frame parts 5 and lower frame parts 6.. Beneath the table 2 a hydraulically operated press table 3, preferably of the same construction as the table 2. Specification 660,577 is referred to.
Patent GB-927591-A (GB)
Title: Integrator circuit
IPC: H03K4/20
Filed: 1962-01-26
Abstract: 927,591. Valve sawtooth generators. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Jan. 26, 1962 [Jan. 30, 1961], No. 3090/62. Class 40 (6). [Also in Group XXXVI] Drift in an integrator comprising a valve 1 is minimized by providing a similar valve 2 and a differential amplifier 3. Valve 3 provides a correcting bias to valves 1, 2 dependent on the difference in anode voltage of valves 1, 2. As described, the correcting voltage is obtained from the left-hand anode of valve 3 and fed via a cathode follower 4 and resistors R2, R3 to the grids of valves 1, 2. Capacitor C2 is preferably very much smaller than the Miller capacitor C1 The invention enables the integrator 1 to hold the integrated value of the input voltage E for a much longer period after the input switch has been opened. The circuit may be used to convert a bipolar pulse waveform E (Fig. 3) into a trapezoidal waveform Vp.
Patent GB-396408-A (GB)
Title: Improvements in and relating to voltage regulators
IPC: H01F29/12
Filed: 1932-02-02
Abstract: 396,408. Transformers. FERRANTI, Ltd. and NORRIS, E. D. T., Hollinwood, Lancashire. Feb. 2, 1932, No. 3142. [Class 38 (ii).] In voltage regulators of the type described is Specification 341,903 it has been found that when the short-circuited coil 4, Fig. 2, is in the centre position, the output voltage varies as the load varies since the load current flowing in the coil 1 reduces the leakage flux of coil 2 and thus varies the voltage distribution across coils 2, 3. This has been overcome by arranging one or more pairs of compensating coils 5, 6 disposed to be cut respectively by the leakage fluxes from coils 2, 3 and connected in series so that a current flow takes place which maintains the two leakage fluxes constant. The dimensions of the coils may be varied so that they link with varying amounts of leakage flux. The coils are arranged in slots in the core with their axes at right-angles to the main coils. In a modification, Fig. 5, the coils 5 are arranged to link also with the leakage flux at right-angles to the plane of the laminations. Specifications 340,538, 341,903, 368,142, and 372,493 also are referred to.
Patent GB-901417-A (GB)
Title: An improved driving tool for screws
IPC: B25B15/00
Filed: 1961-01-26
Abstract: 901,417. Screwdrivers. JENKINS, R. G. C. (Aer-O-Torq Inc.) Jan. 26, 1961, No. 3150/61. Class 61. A screwdriver for screws having recessed heads comprises a shank 1 terminating in a blunt end 10 having wings 2-5 extending upwardly and outwardly from said end with increasing radial magnitude, each wing having a driving wall 8 and back wall 9, each of the driving walls 8 being of greater area than the back walls 9 of the wing and disposed a greater distance from that plane which contains the axis of the shank 1 and lies parallel to the respective driving wall. In a modification the driving wall of each wing is inclined from the periphery of the tool shank towards the axis of the shank, thus causing the screwdriver to cam out when the driving torque and back torque are of equal values.
Patent GB-177317-A (GB)
Title: A new or improved thread control and thread feeding mechanism for embroidery and like machines
IPC: D05C11/08
Filed: 1921-01-26
Abstract: 177,317. Disney, L. S. Jan. 26,1921. Embroidery machines. -Rollers 8, 8<a>, situated between the thread spools and oscillating take-up devices, positively feed the threads to the needles, during their forward stroke, at the speed of the movement of the needles. A rod 18, reciprocated vertically by a cam 16 actuates a wheel 23, which, through a ratchet clutch, imparts intermittent unidirectional motion to the roller 8. The rod 18 is linked to a standard 19 and can be held inoperative by a lever 42 engaging a projection 44; the stroke of the rod 18 can be varied by means of a lever 37. A dog clutch 32, 33 is interposed between the drive 23 and the roller 8.
Patent GB-407813-A (GB)
Title: Improvements relating to safety razors
IPC: B26B21/50
Filed: 1933-02-02
Abstract: 407,813. Safety razors. ARMSTRONG, L. A., Chetwynd Cottage, Ditton Park Road, Slough, Buckinghamshire. Feb. 2, 1933, No. 3217. [Class 30.] A safety razor of the pivoted blade type having a roller 5 geared by pinions 6, 7 to the blade holder spindle 4 for reciprocation on a rigid sharpening surface has the blade 9 positively retained in the shaving position by spring-controlled locating means the application of pressure on which releases the blade into the sharpening position, the locating means automatically re-engaging the blade when the latter is swung angularly into position after completion of the sharpening operation. As shown in Figs. 1, 4 the locating means comprise plungers 10 with blade-engaging slots 11 at their inner ends. These plungers are urged inwardly through apertures in the side plates of the frame 3 by blade springs 12 secured at 14, and are retracted by a thumb-and-finger engagement with buttons 16 sliding on fixed pins 15 on the outer sides of bent links 13 which are fastened on the outer ends of the plungers. The thumb- and-finger engagement is maintained throughout the sharpening operation. Chamfered parts 17 on one side of the slots 11 allow the blade to snap automatically into the correct shaving position with respect to the guard 3<a> after the buttons 16 have been released and the razor has been drawn sharply across the stropping surface towards the operator. A single control member near the end of the handle may replace the two buttons 16. The blade, which may be of the wafer or hollow-ground type, engages a holder 8 of the clip or other type by means of a slot 9<a> in one of the side plates.
Patent GB-122939-A (GB)
Title: Improvements in or relating to the Means for Closing Casting or other Furnaces.
Inventor: PRICE COLIN FREDERICK
IPC: F27D1/08
Filed: 1918-02-25
Abstract: 122,939. Price, C. F. Feb. 25, 1918. Covers. - A brick or block a for closing casting or other furnaces has connected longitudinally within it a flattened bar or rod b, the ends of which are screw-threaded and pass through holes in the bent-down ends of an external bar d, shaped as shown to form a handle f. The bar b is passed through the brick, and one end is passed through the hole in one end of the external bar; it is then shifted longitudinally to pass through the other hole. Nuts g are finally applied to the screwed ends. The bar b is cemented within the brick, the bar being shifted longitudinally to allow the bar d to be positioned before the cement has set.
Patent GB-1396441-A (GB)
Title: Balance particularly for kitchen use
Inventor: ACKERET P
IPC: G01G21/22
Filed: 1973-01-23
Abstract: 1396441 Weighing balance SALTER HOUSEWARES Ltd 23 Jan 1973 [23 Jan 1972] 3356/73 Addition to 1267375 Heading G1W A weighing balance comprises a weighing device 15 within a housing 10 and a weighing container 12 which sits on the weighing platform 11 during weighing but which can be inverted to act as a cover for the balance, the container when inverted resting with its rim 45 supported on a shelf 20, and being restricted against lateral movement by the platform 11. The balance with container inverted may be lifted by means of hand-holds 49 and the rim 45 Fig.3 (not shown). Several containers 12 may be provided, each having the same weight and each having a rubber ring 47 on its base. The containers may be used as mixing bowls, and have a spout 46 and volumetric graduations. The device 15 may include a parallel leaf-spring mechanism driving a pointer 17 over a scale mounted on a rotatable scale carrier 29.
Patent GB-1531672-A (GB)
Title: Method of treating clay-containing phosphate rock
IPC: F17D1/16
Filed: 1977-01-27
Abstract: 1531672 Treating clay-containing phosphate rock; phosphoric acid PETROCHEMICALS CO Inc 27 Jan 1977 [2 Feb 1976] 03371/77 Heading C1A In a process for treating clay-containing phosphate rock that includes the hydraulic transportation of finely divided phosphate rock wherein the phosphate rock is prepared in the form of an admixture of the phosphate rock in an aqueous slurry for handling; the improvement comprises the step of adding to the admixture a chemical which may be one or more of (a) an aliphatic hydroxy acid containing 2-6 carbon atoms, inclusive; (b) a water-soluble, inorganic salt of said aliphatic acid; and (c) a blend of one of said aliphatic hydroxy acid and said salt of said aliphatic hydroxy acid with an alkali metal hydroxide, the chemical being added in at least an amount effective to reduce viscosity of the admixture after addition below the viscosity of said admixture alone and such that said admixture can be pumped after four hours storage at concentration of solids therein in excess of 65 per cent by weight. Phosphoric acid and gypsum calcium phosphate may be obtained by the further steps of adding sulphuric acid to the admixture and digesting the rock to form a liquor comprising phosphoric acid and a precipitate comprising gypsum calcium phosphate.
Patent GB-733664-A (GB)
Title: Improvements in or relating to vacuum flasks
Inventor: WILSON JOHN EDWIN
IPC: A47J41/02
Filed: 1953-02-06
Abstract: 733,664. Vacuum-jacketed vessels. THERMOS (1925), Ltd. Jan. 27, 1954 [Feb. 6, 1953], No. 3414/53. Class 64 (2). The glass vessel 2 of a vacuum flask is supported by a moulding of resilient material such as polyethylene, having a tubular portion 4 and radial extensions, such as two diametrically opposed flanges 6 or a single annular flange, for location of the moulding in the casing 1. The tubular portion 4 may extend below the flanges which may rest on a ledge in the casing 1. The internal bore of the portion 4 is tapered so that the wall is thinnest at the upper edge and it may be flared out upwardly. The Provisional Specification describes also a moulding made of rubber or synthetic rubber.
Patent GB-124716-A (GB)
Title: Improvements in Driving Mechanisms for Washing Machines.
Inventor: COFFIELD JAMES LLYOD
IPC: D06F11/00
Filed: 1919-02-12
Abstract: 124,716. Coffield, J. L. March 27, 1918, [Convention date]. Washing-machines.-The oscillating receptacle 3 of a washing-machine is driven from a motor 5 through reducing-gear 7, 10, 11, and a connecting-rod 17 attached to one disk 19 of a clutch mounted on a trunnion 25 of the receptacle. The other clutch disk 20 is fixed to the receptacle and has two projections 22 for engagement with holes in the disk 19, which is leather-faced and urged towards contact by a spring 30. To stop the drive a hand-lever 31 is moved through dead centre against a stop 35, thus turning a crank 33 and withdrawing the disk 19. The driving-belt 7 is tensioned by a pulley 38 carried by a spring-influenced bell-crank lever 36, and a wringer 42 may be driven from spur-wheel 11 though bevel-gearing 15.
Patent GB-459573-A (GB)
Title: Improvements in or relating to centre-drilling machines
IPC: B23B39/20
Filed: 1936-02-05
Abstract: 459,573. Drilling. HOPKINSONS, Ltd., BROWN, R. L., and METCALFE, T., Britannia Works, Wheathouse Road, Huddersfield. Feb. 5, 1936, No. 3446. [Class 83 (iii)] A centre - drilling machine has a workpiece vice with jaws which are hydraulically operated simultaneously towards or away from one another, one jaw being moved directly by the hydraulic motor and the other being moved simultaneously in opposite direction by gearing actuated by the motor. The vice is secured in framework supported directly above the pedestal 5, Fig. 2, the right-hand jaw s being adjustably secured to the piston v by a tonguepiece w and adjusting screw y and clamping screws 2. The other jaw t is simultaneously operated by a rack 3 on the piston member engaging a toothed wheel 4 which engages a rack 5 cut on the underside of the jaw. The drilling head c, Fig. 1, is carried at one end of a beam q, the other end of which carries worksupporting devices 11, 12. The head c carries two parallel spindles, one for a drill and the other for a countersink which may be brought, in turn, into line with the central axis of the machine by swivelling the head about its support, the motion being limited by adjustable stops. The handle g moves the tools, one being fed towards the work while the other is simultaneously retracted. The electric motor p for driving the spindles through the belts d, e also drives, through a sprocket chain 7, a pump 15, the control of pressure fluid from which is effected by a valve 6, Fig. 2, thus determining whether the vice-jaws are moved towards or away from one another. An end-stop 12a is provided for positioning the work and cutting fluid may be supplied by a vessel 9.
Patent GB-583887-A (GB)
Title: Improvements in means for exciting alternators
IPC: H02P9/38
Filed: 1942-03-16
Abstract: 583,887. . Alternators. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER. E. March 16, 1942, No. 3447. [Class 35] In an alternator excited by means of a rectifying commutator of Mills type, as described in Specification 118,762, [Class 38 (ii)], fed from the generated A.C. through saturable chokes, the commutator and the field winding are mounted on the alternator shaft. In the form shown, part of the output 2, 3, 4 from the generator 1 is taken by a compound transformer 5 ... 10 and passes through chokes 20, 21, 22 which are saturable by D.C. fed windings 23, 24, 25 to the brushes 17, 18, 19 on the commutator. The field winding is connected across conducting segments 15, 16 and sparkpreventing condensers 26, 27, 28, which preferably have charging means, are provided between the brushes.
Patent GB-859090-A (GB)
Title: Improvements in fluid pressure testing equipment
Inventor: GRANT CHARLES ROBERT ARCHIBALD
IPC: G01M3/28
Filed: 1957-01-31
Abstract: 859,090. Testing pressure-gauges. PRESSURE GAUGES Ltd. April 30, 1958 [Jan. 31, 1957], No. 3460/57. Class 106 (2). Fluid pressure testing equipment includes an hydraulic circuit divided into low and highpressure parts by a differential piston amplifier and balance unit 4, a pump 2 for delivering hydraulic fluid to the circuit, a dead-weight tester 3 in the low-pressure part of the circuit, a valve system for either segregating or connecting the two parts of the circuit and means 22, 24 for giving a visual indication that the pressures acting on opposite sides of the amplifier and balance unit 4 are balanced. For testing a gauge at pressures within the range of the dead-weight tester 3, valves 11, 12 are closed and the unit is used as described in Specification 744,136, the gauge to be tested being fitted at 10 and the pump 2 being used to build up pressure as required. For testing above that range the gauge is fitted at 10a, and the pump 2 is used to build up pressure on either side of the differential piston unit 14, 15, balancing of the pressures being effected by use of the manually-operated pump 6. When the unit 14, 15 is balanced an indication is given by a signal light operated by movement of microswitches 22, and the pressure exerted on the gauge 10a is determined by the load on the deadweight tester 3 increased in the ratio of the areas of the pistons 14, 15. The pistons 14, 15 are rotated by an electric motor in order to minimise difflculties due to friction. The manually-operated valves may be replaced by solenoid valves with the exception of valve 27 which has to be adjusted in order that the pump may set up the required pressure. Specification 744,620 also is referred to.
Patent GB-488480-A (GB)
Title: Antenna systems
IPC: H01Q9/18
Filed: 1938-02-04
Abstract: 488,480. Wireless signalling; aerials. STANDARD TELEPHONES & CABLES. Ltd. Feb. 4, 1938, No. 3583. Convention date, April 15, 1937. [Class 40 (v)] To prevent radiation from the coaxial feeder of a short-wave aerial, the feeder is enclosed in a " counterpoise " or quarter-wave tube, which acts as a high impedance or tuned blocking circuit to leakage or " reflected " currents of the working frequency. As shown in Fig. 1, the dipole aerial 1 is fed through a coaxial line 4, 5, which passes through the quarter-wave hollow tube or counterpoise 2, and is connected to it at a current node 12. The various parts are supported by a tube 8 and insulators 9, 10 as shown in section in Fig. 1A. Fig. 1B shows the equivalent electrical circuit, in which the aerial constants are represented at 17, 18, 19, and those of the counterpoise as a blocking circuit 23 which prevents leakage of current along the feed-line 5. Instead of the tube 2, the counterpoise may take the form shown in Fig. 2 ; or it may be made as a rectangular cage. A second tubular shield may be arranged coaxially with the first to screen it from inductive pick-up. The tubular counterpoise may be connected to ground through a quarter-wave shortcircuited coaxial transformer, Fig. 5 (not shown). U.S.A. Specification 1,963,723 is referred to.
Patent GB-1461694-A (GB)
Title: Controlling sintering rate on a sinter bed
IPC: C22B1/20
Filed: 1974-01-25
Abstract: 1461694 Controlling sintering processes BRITISH STEEL CORP 21 Jan 1975 [25 Jan 1974] 03609/74 Heading C1A [Also in Division G3] Combustion in a sinter strand is controlled so as to change the angle of the line of burnthrough points by taking a series of measurements of the temperature or the air flow through the bed in a plane across the bed and controlling one or more of the variables which affect flame front progress so as to compensate for any irregularities in the temperature or airflow. The variables which may be controlled include (a) the gas supply and distribution to the ignition hood 14, (b) the rate of flow of air across the strand, (c) the quantity and distribution of fluids such as steam, CO 2 , hot air, fine oil or water sprays sprayed on to the bed or (d) the degree of tilt of the cut-off plate 13. In one embodiment (Fig. 3, not shown) the air flow across the bed is measured by a series of anemometers which provide a series of signals which are used to control the gas supply to the nozzles 15 of the ignition hood. In another embodiment (Fig. 4, not shown) the signals are used to control the angle of the cut-off plate 13 and thereby vary the thickness of the bed. Instead of a series of separate measuring instruments a single device may be mounted on a carriage supported on a gantry above the bed, said carriage being moved back and forth across the bed.