baber/WOPTO huggingface dataset:
Patent GB-1002778-A (GB)
Title: Improvements relating to electro-acoustic systems
IPC: G10K15/10
Filed: 1960-05-27
Abstract: 1,002,778. Electrophonic organs. D. S. VERNON. Aug. 25, 1961 [May 27, 1960], No. 18933/60. Heading G5J. [Also in Division H4] Artificial reverberation in the output of an electrophonic organ is provided by an electroacoustic system including three series- and parallel-connected reverberation chambers C1, C2, C3 (Fig. 1). Chamber C1 is of tubular concrete drainage pipe having inwardly domed end walls of metal or concrete. Chamber C2 is a cylindrical or oval sheet-steel tank of similar size while chamber C3 is a steel tank of smaller size. The system also includes amplifiers A1 A2 . . . &c., pre-amplifiers P1, P2 . . . &c., and gain controls G1, G2 ... &c. Input signals from the organ are applied to the system and the series and parallel combination of the chambers provides outputs at loud-speakers or loud-speaker systems S1 S2, S3. An unreverberated output may be provided at loud-speaker S4. Each gain control G1, G2 . . . G7 comprises a potential divider network R, r (Fig. 2). Any one of a number of different values of resistor r can be switched in for varying the gain of each control. Twelve different tone colorations are obtained in an organ having twelve tabs Ta, Tb ... Tl (Fig. 3) for pedal or manual operation which tabs are connected to relay windings La, Lb ... Ll. Relay winding La, for example, operates seven changeover contacts La1 ... La7 which are incorporated in the seven gain controls G1 . . . G7. Each group of seven resistors r controlled by a given relay is mounted within the body of an eight-pin plug 21 (Fig. 4), seven of whose pins are connected to the ends of resistors rl . . . r2 respectively, the other ends of the resistors being connected together to pin 8. Twelve plugs 21 are thus provided, each " containing " a given tone coloration. Each plug is inserted into a socket 22a, 22b . . . &c. (Fig. 3). Resistors r are preferably of much lower resistance than permanent resistor R to provide attenuation when switched in. The determination of desired values of resistors r may be carried out by a tuning jig (Fig. 5, not shown).
Patent GB-687168-A (GB)
Title: Mechanism for varying the tension of normalizing springs of typewriter or like machine
IPC: B41J5/26
Filed: 1950-07-28
Abstract: 687,168. Typewriters &c. ROYAL TYPEWRITER CO., Inc. July 28, 1950 [Aug. 16, 1949], No. 18943/50. Class 100 (iv). In a power-operated typewriter or like machine, the springs returning the key-levers, type actuators, &c. are connected to anchorplates and the anchor plate to which one set of springs, e.g. those for the key-levers is connected, is pivoted so that the touch required for operation can be adjusted by a manually operable member e.g. knob 71, the degree of tensioning of the spring being shown by an indicator e.g. sector 76 mounted to pivot in unison with the anchor-plate. As shown in Fig. 1, a type-bar-operating mechanism as described in Specifications 674,941 and 682,212 has three return springs, viz. spring 49 biasing key-levers 35 to normal, spring 47 biasing intermediate arms 39 to normal and springs 20 biasing the actuators 10. Springs 47 and 20 are attached to fixed anchor-plates 48 and 21 fixed by screws 22 to a framework bar 23. Springs 49 are connected to a transversely extending anchor-plate 52 fixed to a shaft 59 removably secured by bearing plates in a pair of brackets 63 mounted on the main frame A. Shaft 59 is pivoted to adjust the tension in the springs 49 by a gear 72 fixed on the shaft 59 and meshing with a worm 69 rotated by the knob 71. The adjustment, between stops 74, 75 formed by un-cut portions of the gear 72, is visually shown by the indicator sector 76 provided with markings 78 visible through a window 79 above which is a pointer 80. In a modification, Fig. 5, spring 49 is not adjustable, being anchored to a spindle 83 forming also a bearing for an anchor-plate 81 to which the return springs 47, 20 are attached, and which is rocked by the rotation of an indicating knob 97 and mechanism 88-96. In a further modification, Fig. 6, springs 49 and 47 are attached at 103, 104 to a fixed anchor-plate on the bar 23, and springs 20 are hooked to ears on a pivoted anchor-plate 110 which is rocked about a spindle 108 by a lever 113, linkage 114- 117, and an extension 118 of the anchor-plate 110. The lever 113 is moved into alignment with one of the indicating marks 123 on a segment 122 attached to the casing 66 and is held in position by the action of a leaf spring 120 against flats 119 on the boss of the lever 113. The machine includes means for individually adjusting the driving impulse to the type-bars &c. by the relative engagement of the teeth 27a of the pawls 27 with the snatch roll 9 as described in Specification 682,212. Collective adjustment of the driving impulse is effected by a knock-off bar 19 pivotally adjustable between the brackets 63. Specifications 277,627, [Class 100 (iv)], and 674,943 also are referred to.
Patent GB-359579-A (GB)
Title: Improvements relating to grease-guns
IPC: F16N37/02
Filed: 1930-04-21
Abstract: 359,579. Grease cartridges. STACK, C. M., Newby Wiske, near Northallerton, Yorkshire. April 21, 1931, No. 18976/30. [Class 12 (iii).] A grease gun having a screw cap at each end is charged by means of a cartridge 1, preferably of celluloid, having a removable cap 2 at one end and at the other end an orifice 6 closed by a disc 4, removable by means of a tape 3. After removal of the cap and disc the cartridge is inserted in the gun, the piston of which works in the interior of the cartridge. Specification 254,522, [Class 12 (iii), Lubricators &c.], is referred to.
Patent GB-944116-A (GB)
Title: Improvements in or relating to processes for the manufacture of semi-conductor devices
IPC: H01L29/06
Filed: 1962-05-17
Abstract: 944,116. Semi-conductor devices. SIEMENS & HALSKE A.G. May 17, 1962 [May 17, 1961], No. 19005/62. Heading H1K. A process for the manufacture of semi-conductor devices comprises the steps of assembling a semi-conductor body 6, Fig. 3, and electrodes 3, 4, 5 in a mould 1, embedding the assembly in a bedding powder 7 and joining the electrodes 3, 4, 5 to the body 6 by heating the electrodes 3, 4, 5 and body 6 to alloying temperature while simultaneously subjecting them to pressure through compressing the powder 7, as by a ram 9. Casing 8 is of steel and may be open at both ends, two rams 9 being used, one at each end. Mould 1 may be of compressed quartz powder or of a foil of paper or synthetic material, e.g. polyethylene, Fig. 4. The semi-conductor body 6 is of germanium, silicon, germanium-silicon alloy or is of an intermetallic compound of elements of the 3rd and 5th groups of the Periodic System. Electrode 5 is an aluminium disc which when alloyed to the body 6 forms the base electrode. Electrode 4 is an annular foil of gold-antimony alloy which alloys with body 6 to form an emitter zone. Electrode 3 is gold-antimony alloy which alloys with body 6 to form a collector zone. Powder 7 is graphite, magnesium oxide or aluminium oxide. Specification 827,762 is referred to.
Patent GB-334972-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D34/404
Filed: 1929-06-21
Abstract: 334,972. King, F. June 21. 1929. Addition to 307,665, [Class 131, Tiolet &c.]. Mowing-machines. - Between each pair of fingers b of the finger bar a an oscillating cutter e is secured by a pivot f, the rear end of each cutter being pivoted to a bar g connected to a rocking lever j, pivoted to the finger bar at f<1> and actuated from the crank shaft by a pitman k. The pivots f and the connections of the cutters to the rod are so arranged that the cutting parts are inclined downwardly as shown in Fig. 3 when the cutters are in mid-position, thus increasing the cutting efficiency of the machine. The machine may be power-driven or mechanically propelled. The parent Specification is referred, to in the Provisional Specification.
Patent GB-1185623-A (GB)
Title: A method of Forming a Bonded Textile Product
Inventor: FORD JOHN ERIC
IPC: D04H1/54
Filed: 1966-04-30
Abstract: 1,185,623. Bonded textile yarns. BONDINA Ltd. 27 April, 1967 [30 April, 1966], No. 19090/66. Heading B5B. [Also in Division D1] A method of forming a bonded structure of first fibres comprising polyamide or polyester fibres or both, comprises forming a mixture of these first fibres with second fibres of a polyamide whose melting point in the presence of water is reduced and is lower than the melting point in the presence of water of the first fibres, steaming the structure at a temperature between the melting points in the presence of water of the first and second fibres, and thereby melting the second fibres while leaving the first fibres substantially unaffected, and cooling the structure and thereby solidifying the polyamide of the second fibres as welds between the first fibres. The structure may be in the form of an elongated mass of small cross-sectional area so as to form, after the steam treatment, an adherent product similar to a yarn or roving with or without twists. The first fibres may include nylon 6 fibres, nylon 66 fibres, and cellulosic fibres, the structure suitably containing from 5 to 25% by weight of the second fibres, especially 15% by weight thereof. Steaming may be conducted using steam which is under elevated pressure and is at the said temperature, and may result in the second fibres melting and retracting into globules. Steaming may be carried out with or without compaction, depending upon the shape, form or bulk density required. Examples are given.
Patent GB-690459-A (GB)
Title: Improvements in and relating to hydraulic shock absorbers
IPC: B62K25/06
Filed: 1951-08-14
Abstract: 690,459. Hydraulic dampers. KRONPRINZ AKT.-GES. FUR METALLINDUSTRIE. Aug. 14, 1951 [Aug. 14, 1950], No. 19186/51. Class 108 (iii). A shock absorber for motor cycle forks, comprises an outer tube 1 rigid with the cycle forks and having a constricted portion 4 surrounding an openended inner tube 2 connected to the cycle wheel, the tube 2 having a pistonlike enlargement 5, a spring 7, 8 disposed between the piston 5 and the end of the outer tube 1, holes 6 in the wall of the inner tube 2 in the vicinity of the constricted portion 4 (when the shock absorber is in its inoperative position), and an air cushion 14 above the liquid 12 in the two tubes 1, 2. A slidable annulus 9 may divide the spring 7, 8 into two sections as shown, and this may act as a piston valve in relation to ports 11 in the tube 1. In operation, on compression, the spring 8 is compressed to a greater extent than the spring 7 owing to the damping of liquid flow past the annulus 9. On rebound the holes 6 are cut-off by the constricted portion 4.
Patent GB-1059062-A (GB)
Title: Railway train comprising articulated vehicles and a bogie beneath each articulation joint between adjacent vehicles
IPC: B61D3/10
Filed: 1965-05-06
Abstract: 1,059,062. Cars, continuous forming trains; undercarriages. NIEDERSACHSISCHE WAGGONFABRIK JOSEPH GRAAFF G.m.b.H. May 6, 1965 [Feb. 26, 1965], No. 19189/65. Heading B7L. In a railway train wherein the railway vehicles are articulated together a bogie comprising side frames 14, 15, Fig. 2, supported on two axles and connected by a transverse beam (24), Fig. 6 (not shown), is arranged below each articulation joint 3 between the adjacent ends of vehicle central longitudinal beams 1, 2, the latter being secured to transverse bearer members 4, 5, respectively, the depending ends of which are connected by shackles 6 to 9 to the ends of leaf-springs 10, 11 connected centrally by pins 26, 27 to the side frames 14, 15. The beams 1, 2 are provided with vertical webs 30, 31 engaging, with longitudinal and transverse play, between pairs of jaws 32, 33 on the sides of the beam (24), whereby the bogie is guided on curves. The beam (24) is rigidly secured to the frame member 15 but is detachably connected to the frame member 14 by a vertical bearing (25), Fig. 8 (not shown), so that the bogie frame can yield about lengthwise and transverse axes. Stabilizers 28, 29 are provided on the brackets 4. between the leaf-springs.
Patent GB-143443-A (GB)
Title: Improved process and apparatus for the treatment of textiles, skins and other materials
IPC: D06B3/10
Filed: 1919-08-05
Abstract: 143,443. Cohen, P. M. Quas-, & Drucquer, M. N., (trading as Cohen & Wilkes), and Levy, L. A. Aug. 5, 1919. Passing materials through fluids.-Relates to improvements in the known process of treating textiles, skins, and other material with liquids by continuously passing the material through a liquid bath, then through an evacuated space, and then again through the liquid, and of the type in which the material is passed through II vacuum tower sealed by liquid itself, and consists of improved means for the elimination of air from the material. For this purpose, the head &c. of the tower 3 is enlarged to contain rollers 6 which cause the material to traverse a circuitous path, the air being removed by a pump connected with a pipe 5. Further, the material is passed between one or more pairs of spring-pressed rollers 7.
Patent GB-261819-A (GB)
Title: Improvements relating to metal melting furnaces
IPC: F27B14/14
Filed: 1925-07-29
Abstract: 261,819. Tooth, L. F. July 29, 1925. Discharging.-The wall of a melting-pot furnace is fitted, adjacent the valve-controlled outlet of the pot a with a D-shaped hollow casting h, adapted to receive a removable spout i and provided on the outer end with a pivoted door h<1> which prevents entry of air to the casting h during the periods between discharges. The furnace, which is shown as having two oppositely disposed discharge outlets, is heated by a gas burner c and the wall d is formed with flues e down which the products of combustion pass to an annular collecting-flue k communicating with a stack. Each outlet from the pot a is controlled by a valve g and is formed as a shoe f beneath which the spout i engages and around which the flanged end-plate m of the casting h fits closely. Lagging y and an adjustable bracket j, bearing against a machined surface on the pot a, are provided to prevent the combustion gases from escaping to the interior of the casting h.
Patent GB-926960-A (GB)
Title: Temperature-responsive electric switches
IPC: G01K5/62
Filed: 1959-06-05
Abstract: 926,960. Thermal electric switches. MINNEAPOLIS - HONEYWELL REGULATOR CO. June 5, 1959 [June 6, 1958; Aug. 1, 1958], No. 19326/59. Class 38 (5). [Also in Group XI] A switch for detecting the failure of a flame in an oil-burning heating installation is disclosed together with the control circuit employed (see Group XI). The switch employs a bi-metal 26 acting to move downwardly on the application of heat, and making contacts 29, 35. A magnetic armature 28 is attracted by a magnet 32 to permit this movement until the Curie point of the armature is reached when it becomes non-magnetic and the bi-metal operates the contacts. The bi-metal is carried on a pivot 130 held into grooves 132 in a support and is retained by a spring 135. A slipping clutch is thus provided which limits the maximum stress in the bi-metal. The ceramic case has a transparent window 17 for the passage of radiant heat. A clip 40 is provided to clamp on to the burner nozzle of the oil burner. Modified constructions disclosed use a sealed transparent envelope to contain the switch, polepieces of the magnetic material and fixed armatures with magnets movable with the bimetal.
Patent GB-660440-A (GB)
Title: Improvements in or relating to carbide-and like tipped tools
IPC: B28D1/00
Filed: 1949-07-23
Abstract: 660,440. Drills and cutters. HOOLE, C. B. Aug. 3, 1950 [July 23, 1949; Sept. 12, 1949], Nos. 19421/49 and 23471/49. Class 83 (iii). [Also in Group XXIII] In a rotary drill or like tool tipped with one or more inserts of carbide or like hard material, one or more faces of each insert is formed with serrations emerging at a cutting edge of the insert and extending generally in a lengthwise direction away from that edge. Fig. 1 shows an insert 7 with serrations 9 lying in the line of feed, whilst Fig. 5 shows an insert 19 with serrations 20, 23 lying at angles to that line. The serrations may be parallel to each other, diverge or converge as they approach the cutting edge, or cross each other to produce pyramidal or like protrusions, or the inserts may constitute side-by-side elements 58, each with a serration, as shown in Fig. 12. The serrations of one insert may be staggered with respect to those of another, and they may be of the same or different pitch. Fig. 13 shows a double reamer bit with two sets of inserts 61, 62 sloping upwards and downwards towards the centre, respectively, and with axial holes 67. . . 70 and spaces 71 for the removal of material. The Specification also describes and illustrates various profiles for the serrations, together with their application to chisels, wall-drills, and M-, W- and Z-shaped inserts.
Patent GB-1033544-A (GB)
Title: Improvements in or relating to discharge lamp fittings
Inventor: COLEMAN ARTHUR SYDNEY
IPC: F21V29/00
Filed: 1964-05-09
Abstract: 1,033,544. Fittings for discharge lamps. S.L.R. ELECTRIC Ltd. May 10, 1965 [May 9, 1964], No. 19436/64. Heading F4R. A diffuser for a discharge lamp fitting has a small vent arranged so as to permit a flow of cooling air over a small zone of the lamp envelope. The vent may be of a diameter between one half and the full diameter of the envelope and may be supplemented by an internally directed tube to bring the air stream adjacent to the envelope. Louvres or vents may also be provided above the level of the lamp. In a fitting containing multiple lamps a vent may be provided for each lamp.
Patent GB-386667-A (GB)
Title: Improvement in mowing machine
IPC: E04H7/18
Filed: 1931-07-06
Abstract: 386,667. Reaping &c. JOHNSON MOTOR CO., 10, Pershing Road, Waukegan, Illinois, U.S.A. July 6, 1931, No. 19449. Convention date, May 23. [Class 6 (iii).] A hand-propelled mowing-machine is supported by a wheel 5 in a frame 6 that carries on one side an engine 11 and on the other side the cutter. The engine drives the cutter bar 8 through a connecting-rod 17, crank 16, shaft 15 and belt 13. To reduce vibration due to the cutter bar, the crank 16 is provided with a weight 21, and the shaft 15 with a cam 22 against which bears a spring-pressed roller 23. In the alternative arrangement shown in Fig. 4, a double crank 28, 29 operates the reciprocating knife member 30 and a movable member 31 of substantially the same weight. The handles 35 are pivoted to the frame at 36. Cushioning springs 41 are interposed between the handlebars 35 and the frame 6. Stops 44 are provided to limit the downward movement of the handles. Reference has been directed by the Comptroller to Specification 373,118.
Patent GB-721176-A (GB)
Title: Improvements in pressure cookers
IPC: A47J27/092
Filed: 1952-08-01
Abstract: 721,176. Pressure-resisting lids. METALLWERK MESCHEDE GES. Aug. 1, 1952, [Dec. 21, 1951], No. 19466/52. Class 123 (1). A pressure cooker in which a lid 1 is turned relatively to the vessel 2 to open the cooker has a pressure release valve 3 in a handle of the lid 1, a movable valve member 4 of which co-operates with a pin 5 on a handle of the vessel 2 whereby, when the valve is closed, relative opening movement between lid 1 and vessel 2 is prevented. The valve 3 has a cut-away extension 4 which engages the pin 5 on the handle of the vessel 2. In the locked position of Fig. 1 the lid 1 cannot be turned relative to the vessel 2, and there is no escape to atmosphere from the interior of the vessel. On turning the element 3 through 90 degrees, a bore 7 in the valve member 4 coincides with an opening 6 in the vessel 2 to release the pressure therein, and the relative positions of the parts 4, 5 are such as to permit relative circumferential movement between the lid 1 and vessel 2.
Patent GB-260663-A (GB)
Title: Improvements in and relating to amplifying means particularly applicable to office or public line telephonic receivers
IPC: H04M1/60
Filed: 1925-07-31
Abstract: 260,663. Graham, E. A., and Rickets, W. J. July 31, 1925. Repeating and amplifying systems.-In a thermionic amplifier for association with an ordinary substation equipment, a switch for connecting up the filament, and, if desired, the high-tension current supply is actuated by the weight of the ordinary receiver or by the use of the switchhook. The switch may also connect current to the loud speaking receiver if it is of the type employing a separate energizing current. The line wires 1, 2 are connected directly, or through condensers 3, 6, across a tapping of an autotransformer 7 in the grid circuit of the amplifier 9, in the output circuit of which is inserted a loud speaker 11 together with or in place of a deaf person's head-phone 12 in series with a regulating rheostat 13. In the case of an earthed telephone system one or more repeating condensers are connected between the line wire and earth. The ordinary receiver 16 when placed on a pan 15, depresses a weight-actuated lever 14, which closes the contacts 20 in the filament heating circuit and renders the amplifier operative. In a modification, the contacts 20 are normally held open by a spring plunger which is clipped on to the supporting column and which rises and permits these contacts to close when the receiver switch-hook lifts. According to another modification, no connections are made to the substation circuit, but the receiver 16 is placed in stirrups 23, Fig. 4, on the pan 15 in proximity to a sensitive carbon microphone 22, which when the weight-actuated lever 14 is depressed, is connected across a tapping of the auto-transformer 7 and the grid battery 8. Alternatively, the receiver may be placed in proximity to the diaphragm of an electromagnetic telephone, the winding of which is inserted in the grid circuit of the amplifier. A plurality of valves may be used connected in cascade. A number of loud speakers may be provided situated in different rooms with means for switching them into the amplifier output circuit at will.
Patent GB-147525-A (GB)
Title: Improvements in motor ploughs
IPC: A01B71/06
Filed: 1920-07-08
Abstract: 147,525. Bernstein, R. Oct. 21, 1915, [Convention date]. Balance or differential gearing.- Motor-ploughs are driven through differential gearing of the kind in which during straight driving unequal torques are transmitted to the driving wheels, in order to compensate for the side thrust of the plough shares when this thrust is not along the central axis of the machine. In the plough shown in Fig. 4, the thrust is along the interrupted line S, and the engine m drives the wheels through spur differential gearing comprising planet pinions c and unequal sun-wheels a, b. In a modification, the bevel-gearing shown in Fig. 3 is employed, or two similar but unequal bevel sun-wheels may be used, geared together by double planet pinions.
Patent GB-1359673-A (GB)
Title: Quaternary ammonium compounds and surface treating compositions
IPC: D06M13/402
Filed: 1971-06-09
Abstract: 1359673 Quaternary ammonium acetoamides PROCTER & GAMBLE Ltd 8 June 1972 [9 June 1971] 19644/71 Heading C2C [Also in Division C5] The invention comprises quaternary ammonium or pyridinium imides of general formula or their cationic adducts in which X is an anion, R 1 -R 4  may be phenyl or benzyl radicals or R 1  may also be a C 1 -C 25  alkyl or C 8 -C 18  alkylated benzyl or phenyl group, R 2  may also be a C 1 -C 26  alkyl group, R 3  and R 4  may also be C 1 -C 4  alkyl groups, or the   group -#NR 2 R 3 R 4  may represent a quaternized pyridine ring, providing that one or both of R 1  and R 2  contains at least 10 carbon atoms. These may be prepared by reacting an amide R 1 CONH 2  with chloroacetyl chloride and then reacting the product with a tertiary amine of formula NR 2 R 3 R 4 . The compounds are surface active agents and are used in textile treating detergent compositions.