baber/WOPTO huggingface dataset:
Patent GB-739361-A (GB)
Title: Improvements relating to steering gear for motor vehicles
IPC: B62D3/08
Filed: 1954-01-29
Abstract: 739,361. Screw-and-nut gearing. DAIMLERBENZ AKT.-GES. Jan. 29, 1954 [Jan. 30, 1953], No. 2764/54. Class 80 (3). In a steering gear wherein groups of balls in the threads of a nut 2 which is connected to the road wheels are engaged by screw-threads on a steering spindle 1, one or more pairs of return tubes 3 for the balls are provided and each tube is semicircularly curved to rise clear of the nut surface, each pair of tubes being secured to a projection 2a on the nut by a resilient clip 4 and a single bolt 5. In modifications, dispensing with the projection 2a, the clip 4 is secured by a bolt and a tubular distance-piece or by a nut on a spacing stud.
Patent GB-1406511-A (GB)
Title: Cellular polyurethanes
IPC: C08G18/10
Filed: 1973-01-19
Abstract: 1406511 Polyurethane foams IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Jan 1974 [19 Jan 1973] 2788/73 Heading C3R Polyurethane foams are prepared by mixing (a) a prepolymer prepared by reaction of a polyester polyol with an excess of a polyisocyanate comprising diphenylmethane diisocyanate, and (b) a mixture containing a polyether polyol, blowing agent, catalyst for urethane formation and surface active agent, the ratio of NCO groups in component (a) to active hydrogen atoms in component (b) being within the range of 0À95 :1 to 1À2 : 1. A chain extending agent, e.g. 1,4-butane diol may be included in component (b). All the components of the reaction mixture are those used conventionally in the art. The foams may be prepared in a closed mould using overpacking techniques. Shoe soles may be prepared from the resulting foams.
Patent GB-1028364-A (GB)
Title: Improvements in or relating to gas cooled nuclear reactors and fuel elements therefor
Inventor: MARIEN PIERRE JEAN CAMILLE ALB
IPC: G21C3/04
Filed: 1963-01-22
Abstract: 1,028,364. Fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 22. 1964 [Jan. 22, 1963], No. 2794/63. Heading G6C. A gas cooled nuclear fuel element utilizing a portion of the coolant flow for purging fission products from the fuel includes at least one annular fuel member mounted on a non-fuel material spine within a casing, ports in the casing communicating with a coaxial bore in the spine, the diffusivities of the materials of the fuel cartridge, casing and spine being such that fission products pass preferentially into the spine bore. These materials may also be chosen such that, in addition to the flow through the bore via the casing ports, there is a continuous inflow of coolant gas through the casing walls to the spine bore. As seen, seven fuel elements 11 form a fuel assembly including a graphite end block 16. Each fuel element comprises a graphite hexagonal casing 18 having a metal end cap 19, and annular fuel members 11a mounted on the spine 26, which comprises a number of short lengths, each supporting three fuel members. Immediately below the inlet ports 22 is a reactive graphite filter 24. A baffle 40 engages the casing and spine, and thereby ensures that the purge gas passes into the bore 26a. The fuel members and spine are supported on a spider 28, beneath which is a pocket 41 for collecting corroded graphite particles. Immediately beneath spacer 31 is a flow distribution disc 32 leading to a purification unit 33; this comprises eight longitudinal grooves 34 filled with porous material, below which is a filter bed 35. Narrow bore tubing (12, Fig. 1) carried the purge gas from each fuel element/fuel assembly. The reactor (Fig. 1) is helium cooled and has a core of fuel assemblies of the type described. Gas enters an annular inlet chamber 8 from conduits 9b and passes down through an annular graphite block reflector 4 to a lower inlet plenum chamber. Gas passes through the core and leaves the reactor through inner pipes 9a. The purge gas leaving the fuel elements/fuel assemblies via tubes 12 passes through a means 15 for sensing the pressure drop across each fuel element/fuel assembly (thus monitoring fuel casing continuity), a sampling facility 13, and a filter 14, from which the gas enters the reactor coolant inlet.
Patent GB-1002523-A (GB)
Title: Improvements relating to the production of aerosols and the like
Inventor: GOODMAN JOHN EDWARD
IPC: B05B17/06
Filed: 1963-01-23
Abstract: 1,002,523. Whistles. ULTRASONICS Ltd., and PEABODY Ltd. Jan. 22, 1964 [Jan. 23, 1963], No. 2851/63. Heading G5J. [Also in Divisions B2 and F4] A sound-producing device 16 of exponential form and having an annular knife-edge 17 is located centrally in the outlet 9 of a spray nozzle by means of a spindle 15 mounted in a bush member 10 in the housing 1 of the nozzle. The device may be adjustably mounted on the spindle or the latter may be adjustable with respect to the bush 10 in order to vary the spacing between the outlet 9 and the device 16. The front face of the device may be in the form of a curved projection, Fig. 3 (not shown), or may be concave as shown at 18. A preliminary mixture of, for instance, fuel oil and air is projected through the outlet 9 and against the edge 17 so that it becomes thoroughly atomized in the surrounding sonic zone by the action of sound waves of high intensity. Specification 695,491 is referred to.
Patent GB-112846-A (GB)
Title: Improvements in or relating to Artificial Limbs.
Inventor: CAUET PHILIPPE ADOLPHE
IPC: A61F2/58
Filed: 1917-02-27
Abstract: 112,846. Cauet, P. A. Feb. 27, 1917. Limbs, artificial.-A hand comprises a casing 1 to which a rigid thumb 2 and fingers 3 are pivoted and held in the closed position by springs 8. The fingers are coupled by means of wires 9 having ball-ends 10 to a plate 11 oscillating about trunnions 12 under the action of a cable g preferably guided in a sheath g<x> of the Bowden type. The finger couplings, having end play, allow the fingers to close to different angles when the cable is relaxed. The thumb is coupled to the plate 11 by means of a rod 13 so as to be actuated simultaneously with the fingers and end play is prevented by means of a cap 16 fixed over the ballend 15. A cain 17 pivoted at 18 may be caused to bear against the plate 11 or ball-ends 10 to keep the fingers rigid in any gripping position. The cam is operated by a rod 19 carrying a set-screw 21 passing through a slot 23 in the hand and adapted when tightened to bring corrugated surfaces on the rod 19 and on the hand into gripping contact.
Patent GB-923428-A (GB)
Title: Circuit arrangement for controlling the amplification in a transistor amplifier stage
IPC: H03G1/00
Filed: 1962-01-26
Abstract: 923,428. Automatic volume control. STANDARD TELEPHONES & CABLES Ltd. Jan. 26, 1962 [Jan. 27, 1961], No. 3000/62. Class 40 (4). [Also in Group XL (c)] A common emitter transistor amplifier T has a rectifier D 1  connected across the signal input circuit and has the gain controlled by a potential applied to the transistor and the rectifier through a further rectifier D 2 . Rectifier D 1  becomes progressively more conductive as the gain of the transistor is reduced by the control voltage so that when the transistor is cut-off the rectifier maintains the input impedance at a value more appropriate to the preceding stage. Rectifier D 2  isolates the control potential source from the transistor at full gain. The control potential may be derived from speech voltages through a rectifier, amplifier and a rate of change of control modifying network. Preferably the potential source has an impedance equal to the forward impedance of rectifier D 2 .
Patent GB-1474362-A (GB)
Title: Process for inhibiting the corrosion and deposition of boiler scale in water-conveying systems
IPC: C02F5/14
Filed: 1976-01-27
Abstract: 1474362 Inhibiting scale and corrosion HOECHST AG 27 Jan 1976 [8 Feb 1975] 3083/76 Heading C7E Corrosion and scale deposition are inhibited in water-conveying systems by adding to the water one or more compounds HOOC-CR<SP>1</SP>R<SP>2</SP>-[CR<SP>3</SP>R<SP>4</SP>] n -P(O)(OH)R<SP>5</SP> where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> are H or C 1 -C 4  alkyl, R<SP>5</SP> is H, OH, or C 1 -C 3  alkyl and n = 0 or 1, or a watersoluble salt thereof. Compounds mentioned are carboxymethane phosphonic acid, 1-carboxyethane-1-phosphonic acid, 1-carboxyethane-2- phosphonic acid, 2-carboxypropane-3-phosphonic acid, 1-carboxypropane-2 phosphonic acid, and methyl(carboxyethyl) phosphinic acid; the amount added may be 5-100 g/m<SP>3</SP>; a soluble Zn salt, dispersant or algicide may be added; the metal to be protected may be steel.
Patent GB-564796-A (GB)
Title: Automatic volume control in voice frequency circuits
IPC: H03G7/00
Filed: 1943-04-09
Abstract: 564,796. Signal receiving circuits. JONES, E. T. April 9, 1943, No. 3117/42. [Class 40 (iv)] [Also in Group XL] A circuit responding to signal currents in the voice-frequency range, with protection against operation by unwanted currents, comprises a variable attenuator VA, filter F, and signal responding device R, X, the attenuation being increased with increase of level at the input of the filter which is arranged to present a high impedance to frequencies outside the signal range to accentuate the increase of attenuation at such frequencies. On alternate half-cycles at the input to the filter, condenser C4 charges over rectifier W1 and condenser C5, whereas on the other half-cycles, C4 discharges over W2 into the control path in VA and into condenser C5. Battery V provides a lower limit to the control. The filter comprises circuits L1, C1; L2, C2 tuned to frequencies outside the signal range, and an output transformer L3 ; the relative effect of the unwanted frequencies may be increased by an equalizer, in the input to the attenuator VA, which reduces the level of the signal frequencies. In a modification, Fig. 2 (not shown), using modulated or interrupted signal frequencies, the modulation or interruption frequency appearing in the output of rectifier R is filtered to remove the signal frequencies and rectified to provide a voltage which opposes the control voltage derived from the input to the filter.
Patent GB-524459-A (GB)
Title: Improvements in and relating to electromagnetic control devices
IPC: H01H50/88
Filed: 1939-01-30
Abstract: 524,459. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 30, 1939, No. 3149. Convention date, Jan. 29, 1938. [Class 38 (v)] In an electromagnetic control device having a pivoted armature 15 movable against the bias of a spring 24 into a second position, a shortcircuited winding 20 on a limb 13 delays change of flux so that the device operates with a time delay of, it may be, two or three seconds. In the form shown in Fig. 1, when a switch 19 is closed, a winding 18 is energized and its flux is at first diverted, from the limb 13 by the action of the short-circuited windings 20, to the limb 14. Only when the the flux can pass through the limb 13, is the armature 15 attracted to its other position and contacts 16, 17 closed. On opening the switch 19 a similar delayed movement of the armature occurs. If it is desired to retain the slow opening feature only for a short time after the closing of the switch, a switch 23 may be arranged to be closed simultaneously with the contacts 16, 17. This energizes a winding 22 which eventually builds up. a flux in 13 opposed to that due to coil 18 so that the flux from 18 passes only through limbs 11 and 12. If 19 is now opened a quick break ensues. A slow break occurs if the winding 22 has not had time to build up its flux. In a modification, Fig. 2 (not shown) the electromagnet has three limbs with windings, connected in series, on two of them. On closing a switch, the winding on the central limb is short-circuited, and only after a time interval can the flux from the other winding force its way through the central limb so as to be able to attract the armature. In another modification with three limbs and two windings on two limbs, closure of a switch energizes the winding on an outer limb but growth of flux and operation of armature is again delayed by a short-circuited winding on the central limb. The operation of the armature may insert a variable resistance into the short-circuited winding so that the return movement of the armature, though delayed, is somewhat quicker.
Patent GB-266524-A (GB)
Title: Improvements in or relating to porous compounds or compositions formed from gypsum
IPC: C04B28/14
Filed: 1926-02-03
Abstract: 266,524. Case, G. O. Feb. 3. 1926. Moulds.-Gypsum which has been treated chemically to produce a mixture which will be in a porous condition when set may be cast in moulds which are covered with a sheet of porous fabric to permit the escape of gas. Reinforcements may be used in the manufacture of the slabs &c., and they may be provided with an impermeable facing layer of cement, mortar. or the like. Specification 7502/92, [Class 22, Cements &c.], is referred to.
Patent GB-986769-A (GB)
Title: Improved heat insulating container
Inventor: JOYCE WILLIAM THOMAS
IPC: A47J41/00
Filed: 1963-01-25
Abstract: 986,769. Thermally insulated containers; refrigerators. PYRAMID PLASTICS PROPRIETARY. Jan. 25, 1963, No. 3240/63. Headings F4H and F4U. A thermally insulated container comprises an outer casing 8 and an inner casing 9 both made from a resilient, synthetic plastics material and having a space therebetween containing a heatinsulating foamed material 10, the inner casing having an open mouth normally closed by means such as a plug (Fig. 4). The container shown has a corrugated outer wall and its upper end is externally threaded to receive a screw cap (not shown) which presses and retains the plug in position. The plug shown in Fig. 4 comprises an outer shell containing foamed heatinsulating material 14. In a modification, the plug interior may be filled wholly or partly with a cold-storing material such as petroleum jelly. Another body such as is shown in Fig. 5, filled with such material or with methylated spirits or a water mixture may be placed within the container to keep the contents cool, this body and/or the plug having been precooled as e.g. in a refrigerator. Food may be stored in the container in a box 30 (Fig. 6) having a screw-on lid 31. A method of assembly is described.
Patent GB-977528-A (GB)
Title: Improvements relating to voltage multiplier circuits
Inventor: ALLENDEN DENNIS
IPC: H02M7/10
Filed: 1962-01-29
Abstract: 977,528. Voltage modifying and converting systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 23, 1963 [Jan. 29, 1962], No. 3301/62. Headings H2F and H2H. Electrical equipment for producing a high direct voltage and a low alternating voltage which has a high mean potential includes a voltage multiplying circuit of the type which comprises two stacks of condensers interconnected by rectifiers, one of the stacks comprising two lines of series connected condensers C2a-C10a and C2b-C10b, each pair of condensers being interconnected by inductors L1-L4 having centre taps connected to the first stack of condensers by rectifiers D1-D9 and D2-D10, the input of the low alternating voltage being by way of a transformer T3 connected between the two lines of series connected condensers whilst the low alternating voltage having a high mean potential is taken from a transformer T2 at the opposite ends of two lines of series connected condensers. Instead of earthing the centre tap of the secondary winding of transformer T3 the centre tap may be connected to a feedback device for stabilizing purposes. The low voltage may be used for energizing the filaments of electron microscopes.
Patent GB-615986-A (GB)
Title: Improvements in joints for sheet piles
IPC: E02D5/08
Filed: 1946-02-01
Abstract: 615,986. Sheet piling. ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE SOC. ANON. Feb. 1, 1946, No. 3344. Convention date, Dec. 28, 1943. [Class 68 (ii)] The joint between sheet piles, as described in Specification 402,275, is strengthened by arranging the peaks of the triangular crosssection hooks e to lie in a plane ss<SP>1</SP> parallel to the plane of the sheet piles c, d, while their abutting faces e<SP>2</SP> are normal thereto. This enables the thickness at b, b<SP>1</SP> to be increased without increasing the total cross-sectional width of the joint. Yielding at narrower parts such as a, a<SP>1</SP> is prevented by engagement of the hooks e by the claws g.
Patent GB-720403-A (GB)
Title: Improvements in shaft couplings
IPC: F16J15/52
Filed: 1952-02-09
Abstract: 720,403. Screw and nut gearing. COLE, Ltd., E. K., and GIBSON, G. D. Feb. 6, 1953 [Feb. 9, 1952], No. 3463/52. Class 80 (3) [Also in Group XXVI] A shaft coupling comprises a rotatable shaft K. with a screw thread M engaging a thread in a non-rotatable but axially slidable cylinder J engaging, by a similar screw thread, the end of a second rotatable shaft A; the arrangement is such that the shafts K, A being held from axial movement by thrust bearings, rotation of shaft K produces similar rotation of shaft A in.the same direction. The cylinder J is connected by a key N to: a cup O on the wall B of a pressurized fluid or gas container within which the shaft A lies, a flange I on the cylinder J being secured to:one end of an expansible metal bellows H, the other end of which is attached to the wall B whereby the shaft K is separated from the shaft A by fluid- and gas-tight sealing means. The screw threads are of the square form multi-start type in order to reduce backlash, which object may be furthered by spring-loading the shaft A. As modifications, the cylinder J may be externally threaded to mesh with internally threaded shafts or members' secured thereto, and may be constructed as two parts secured back-to-back to a closure plate prevented from rotating..
Patent GB-284861-A (GB)
Title: Improvements in and relating to electrical condensers
IPC: H01G5/06
Filed: 1927-02-07
Abstract: 284,861. Preen, A. Feb. 7, 1927. Condensers. - In a structure comprising a plurality of variable condensers, the condensers have their adjustable parts connected in mechanical parallel to a common control through respective clutches, each clutch being tight enough to enable the common control to adjust all the condensers simultaneously but not tight enough for the individual controls of the condensers to effect adjustment of more than its corresponding condenser. These condensers C', - - C<3> have their rotating vanes carried on spindles s<1> - - s<3> of which s<1> is rotated by an adjusting knob k<1> through step-down gearing and s<2> - - s<3> by knobs k<2> - - k<3> directly. The three spindles carry cranks c<1> - - c<3> interconnected by insulating links l, the crank c' being rigid on the spindle s<1> whereas cranks c<2>, c<3> are adapted to rotate on their spindles against the action of friction clutches h<2>, h<3> in the form of spring washers 14. The adjustment of the clutches is such that they will transmit to their spindles the driving force of the crank c' so that all three condensers are simultaneously operated by the knob k<1>, but when either spindle s<2>, s<3> is operated by its knob k<2> k<3>, none of the other spindles will be influenced. The condensers are of the type described in Specification 274,253, and are mounted on parallel insulators 10 secured to the L-shaped metal brackets thereof and on an insulator 11 receiving the journal bearings of the spindles. The shaft s<1> is adapted to be operated by an adjusting and indicating device of the type described in Specification 263,531, [Class 37, Electricity, Measuring &c.]. Instead of the link motion flexible pulley connections positively connected at points to the pulleys, or any positive gear, may be used. The Provisional Specification also states that tooth gearing may be used, and that the condensers may be axially arranged, in which case the spindle carrying one set of moving vanes passes through a hollow sleeve connected to move the next set by frictional means, while operation of other knobs enables separate final adjustments to be made.
Patent GB-607436-A (GB)
Title: Improvements in or relating to combined clutches and fluid couplings
IPC: F16D33/00
Filed: 1946-02-04
Abstract: 607,436. Clutches. LOMBARDINI, P. C. Feb. 4, 1946, Nos. 3506 and 26359. [Class 80 (ii)] Also in Group XXIX] A clutch of the kind described in Specifications 577,325, 587,651 and 591,114, in which one of the clutch members 6 comprises a rubbing ring which is pressed at one portion of its periphery against a corresponding surface of the other clutch member 4, is combined with a fluid transmission in such a way that one of the transmission members 8 is in driving relation with the one clutch member 6 and the other transmission member 9 is in driving relation with the other clutch member 4. The fluid transmission comprises two discs 8, 9 on which are mounted annular sets of inclined vanes 8a, 9a, projecting horizontally from the discs and lying in the same plane, the inclinations of the sets of vanes being opposed. Connected to the disc 9 is an annulus gear 10 meshing with planet gears 13 which rotate round a sun gear 14 rigid with the input shaft 2, the planet cage 12 being rigid with the output shaft 15. An oil pump 16 driven by the gears 17, 18 from the input shaft 2 supplies oil to the transmission through the passages 21, this oil escapes from the periphery of the casing 9 to the sump 19. When there is relative rotation of the clutch members 4, 6 due to excess torque, there is relative rotation between the transmission members 8, 9 which is increased by the epicyclic train and the resultant torque is transmitted through the output shaft. The first Provisional Specification describes means for axially adjusting the position of the input vane member relative to the output vane.
Patent GB-707622-A (GB)
Title: Improvements in or relating to textile ring-twisting or ring-spinning frames
IPC: D01H7/60
Filed: 1952-02-11
Abstract: 707,622. Ring spinning. HAGENUK HANSEATISCHE APPARATEBAU-GES. NEUFELDT & KUHNKE GES. Feb. 11, 1952 [Sept. 22, 1951], No. 3518/52. Class 120(2) A ring twisting or spinning frame in which an operative traveller and one or more blind travellers travel around a common spinning ring is characterized in that the operative and blind travellers are mechanically coupled with each other in a manner allowing for radial free or elastic play and are kept at such distances from each other around the periphery of the ring that they dynamically balance one another. As shown, a ring 3 is supported in a ring rail 4 and two blind travellers 6 and 7 and an operative traveller 5 are connected by a spring band 8 to which they are fixed at equal distances apart. The band 8 is corrugated at 9 so that it is radially elastic. The travellers are thus urged into frictional contact with the ring and are dynamically balanced.
Patent GB-478036-A (GB)
Title: Improvements in or relating to cardboard folding boxes
IPC: B65D5/52
Filed: 1937-02-05
Abstract: 478,036. Boxes. ROBINSON, E. Feb. 5, 1937, No. 3540. [Class 18] A folding cardboard box comprises a band constituting the front 15, Fig. 4, and the two side walls 14, 16, a cover 12, Fig. 2, integral with the back 11 which is affixed to the side walls by means of flaps 22, and a base 13, Fig. 3, separate from the cover and provided with extensions 23, 24 overlying the front and back of the box. The base is locked in position by flaps 25, 26 thereon which are bent round to lie against the inside of the side walls between inturned flanges 20, 21 on the latter. For display, the cover is bent about the line 18 and an extension 17 tucked between the back 11 and the base extension 23 overlying it. In a modification, the base is integral with the back of the box and the cover with a back flap and locking extensions is the loose piece.
Patent GB-657187-A (GB)
Title: Improvements relating to presses
IPC: B30B15/00
Filed: 1949-02-09
Abstract: 657,187. Angular bending. ETABLISSEMENTS GRIMAR. Feb. 9, 1949, No. 3556. Convention date, April 1, 1948. [Class 83 (iv)] A hydraulically-operated bending-machine has a central ram 2 connected by links 3 to cranks 4 on a shaft 6 which carries cranks 10 operating spaced pressure members 9 for a bending-beam 7. The rigidity of the shaft 6 ensures simultaneous actuation of the members 9. In a modification with two hydraulic cylinders the beam operating cranks are crossconnected by a shaft.