baber/WOPTO huggingface dataset:
Patent GB-721175-A (GB)
Title: Improvements in or relating to portable buildings and to methods of construction thereof
IPC: E04C3/42
Filed: 1952-07-04
Abstract: 721,175. Portable buildings. UNIT CONSTRUCTION CO., Ltd., COVELL, R. G., and MATTHEWS, A. E. T. July 3, 1953 [July 4, 1952], No. 16883/52. Classes 20 (1) and 20 (4). A portable building has a plurality of roof trusses 10, 11 adapted to be supported at their ends on stanchions 13, at least one end of each truss 10, 11 being recessed on its underside to provide two spaced vertical faces 17, 18, and the ends of the corresponding stanchions 13 being stepped to provide faces 19, 21 adapted to mate with the faces 17, 18, means, e.g. bolts 22, 23, being provided to cause the faces 17, 19 and 18, 21 to be pressed tightly into engagement. The faces 17, 18 are formed on a wooden block 16 nailed between wooden elements 10, 11. The inner ends of the bolts 22, 23 are welded to a plate 24, and the outer ends are secured by nuts, wedge-shaped washers 25, 26 being used. At the opposite end of the truss, each element 10, 11 carries a plain block of wood which fits into a stepped recess on the inner side of the stanchion, bolts securing the block and stanchion together. In a modification, Fig. 4 (not shown), the bolts 22, 23 are replaced by two U-shaped brackets, the limbs of which are secured to facing panels extending between the elements 10, 11. The brackets are passed over the top of the stanchion to bring the mating faces together, a screw in the end of each bracket enabling a tight clamping to be effected.
Patent GB-1245342-A (GB)
Title: Method and apparatus for making a fibre-reinforced article
Inventor: PALFREYMAN JACK
IPC: F01D5/28
Filed: 1969-04-01
Abstract: 1,245,342. Fibre-reinforced articles. ROLLSROYCE Ltd. 24 March, 1970 [1 April, 1969], No. 17000/69. Heading B5N. [Also in Division F1] A fibre-reinforced article, e.g. an aerofoilshaped blade for a fluid flow machine such as a gas turbine engine, is produced by disposing a plurality of sheet-like laminations of mouldable material, e.g. synthetic resin such as epoxy resin, metallic or carbonaceous material, adjacent to but spaced from each other in face to face relationship, employing fluid jets to entrain individual fibres or bundles of fibrous material in parallel array and to introduce fibrous material, e.g. carbon fibres formed from polyacrylonitrile, glass fibres or boron fibres, in parallel array between the or each adjacent pair of laminations and moulding the laminations and fibrous material together to form the article. The laminations are preferably reinforced by longitudinally extending fibres which are arranged parallel to each other and which extend orthogonally of the fibrous material introduced by the fluid jets and further fibres may be introduced by passing them through the laminations by means of needles so that they extend orthogonally of the fibres in the laminations and also extend orthogonally of the fibrous material introduced by the fluid jets. The fibrous material may be introduced from opposite sides of the laminations. In Fig. 1 a plurality of laminations 13 are supported by means of clamps 12 between two spaced mould parts which are movable into and out of an operative moulding position and a fluid jet device 15 having a plurality of fluid jets 16 e.g. air jets or water jets, is provided to introduce transverse fibres 17 between each adjacent pair of laminations 13 in a direction extending orthogonally of reinforcing fibres 14. Further fibres may be passed through laminations 13 by means of needles so that they extend orthogonally both of fibres 14 and fibres 17. The mould parts and support clamps 12 are movable with respect to a bank of formers 22 between which fibrous material may be passed to reinforce the root of the blade in the case of the production of rotor blades.
Patent GB-827406-A (GB)
Title: Improvements relating to poles, standards and like structures and a method of manufacturing same
Inventor: DWIGHT JOHN BARTOW
IPC: E04H12/08
Filed: 1957-05-29
Abstract: 827,406. Posts. T. I. ALUMINIUM Ltd. May 19, 1958 [May 29, 1957], No. 17011/57. Class 20(1) A hollow tapering pole is formed from three or more longitudinal parts a each having a plain edge secured within a channel b extending along the edge of an adjacent part. Each part is made by cutting a channel section member, which has a channel b on each of its limbs, obliquely along its length. The parts are secured together by welding, screwing, riveting or by the use of an adhesive bonding.
Patent GB-1035162-A (GB)
Title: Friction welding
IPC: B23K35/362
Filed: 1963-05-01
Abstract: 1,035,162. Welding by pressure. AMERICAN MACHINE & FOUNDRY CO. May 1, 1963 [May 24, 1962], No. 17158/63. Heading B3R. Metal workpieces are heated for friction welding while the weld areas are submerged in a fluxing agent. Welding is effected in an apparatus having a chuck 44 supported on a member 46 rigid with a base 20 and a chuck 31 rotatably mounted in a slide member 26 slidable on vertical frame members 23 connecting the base 20 and a platform 24. The chuck 31 is rotated by a shaft 28 in sliding pin- and-slot engagement with a shaft 32 rotated by a motor 38 on the platform 24 and the slide 26 is movable by hydraulic cylinders 43 connected to the base 20. A flux container 47 is mounted about the support 46 to be moved vertically by hydraulic cylinders 54. In operation the flux container is lowered as in Fig. 1, workpieces 51, 52 are inserted in the chucks, liquid flux is poured into the flux container and the cylinders 54 are energized to raise the flux container so that the workpieces are submerged. The motor 38 is started and a clutch 42 is engaged to rotate the workpieee 51, the cylinders 43 are actuated to draw the member 26 downwards and force the workpieces together. After a suitable time the clutch 42 is disengaged and a brake 36 is applied to stop rotation of workpiece 51 but the cylinders 43 continue to urge the workpieces together. The flux container may be lowered after or during welding after the flux has accomplished its purpose. The flux container may be filled with a powder and if the powder does not flow sufficiently it may be manually urged or blown or spilled about the workpieces or an electric vibrator may be attached to the flux container. A lower chuck having a conical upper portion may be used so that flux may fall back into the container after welding. The flux container may contain a paste flux and a vibrator may be applied to the container or two top members 61, 62, Fig. 12 (not shown), are placed in the container and forced downwards to cause the paste to flow between the workpieces.
Patent GB-969560-A (GB)
Title: Improvements in or relating to ladles and nozzles for pouring molten metal
Inventor: BREEDEN KENNETH WILLIAM
IPC: B22D41/56
Filed: 1962-05-04
Abstract: 969,560. Ladle nozzles. THOMAS MARSHALL & CO. (LOXLEY) Ltd. April 24, 1963 [May 4, 1962], No. 17209/62. Heading F4B. In a bottom pouring ladle having a composite nozzle consisting of a nozzle shell 13 fitted with a refractory insert, the upper end of the shell supports the stopper 17 of the ladle out of contact with the insert, the shell being supported by a device 16 which may be bolted or otherwise secured to the ladle 10 and which includes a detachable ring member 23 for retaining the insert in position within the shell 13. The insert may comprise a simple refractory element, or, as shown, it may comprise elements 19, 21 arranged one within the other. The upper end of the insert element 21 is tapered as at 22 and engages the sloping side 18 of the nozzle shell 13. The inner walls of the element 21 slope to fit the tapered insert element 19. Refractory material 16a spaces the shell 13 and the refractory lining 11 of the ladle. A washer 26 of material such as asbestos is placed as shown. The insert 21 is introduced from below and cemented in position and insert 19 is cemented within it.
Patent GB-439639-A (GB)
Title: Improvements in or relating to the treatment of raw silk
IPC: C09K23/00
Filed: 1934-06-11
Abstract: 439,639. Treating raw silk. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. June 11, 1934, No. 17277. Convention date, June 10, 1933. [Class 120 (i)] Raw silk is treated with an oil-in-water emulsion containing a water soluble sulphuric ester or sulphuric ester salt of a normal straight chain primary alcohol having at least 8 carbon atoms. The treatment softens the sericin to facilitate throwing of the silk. The softening may be effected in either an alkaline or an acid bath. In an example, 20 gms. Neat's foot oil containing 5 gms. of n-lauryl primary alcohol is stirred into 97 gms. water containing 5 gms. of the product obtained by treating the alcohols produced by the catalytic hydrogenation of coconut oil with 100 per cent sulphuric acid at 10 C., followed by neutralization of the sulphuric acid ester with caustic soda. The pH value of the resulting emulsion is 6.8. A raw silk skein treated with the emulsion throws quite easily. The sulphuric ester salts used are preferably the alkali metal salts, also magnesium salts ; examples of suitable esters are n-lauryl-1- sulphuric acid, n-myristyl, cetyl, stearyl, and oleyl-1-sulphuric acid, and ricinoleyl sulphuric acid. In preparing the emulsion, it is preferable to introduce a higher alcohol, e.g. n-lauryl, myristyl, cetyl, stearyl, oleyl, or ricinoleyl alcohol,
Patent GB-571723-A (GB)
Title: Tread unit for endless tracks of vehicles
IPC: B62D55/28
Filed: 1942-12-04
Abstract: 571,723. Endless tracks for vehicles. BURGESS, F. E. Dec. 4, 1942, No. 17277. [Class 79 (i)] An endless track comprises a series of tread members or links each having a pair of pivot sleeves 11 rigidly connected together by side bars 12, the ground-engaging parts or shoes being constituted by separable plate members 20, 21 clamped together on to the pivot sleeves 11, resilient means such as rubber pads or sleeves 35 being clamped between the shoe parts and the pivot sleeves 11. Thus, any inaccuracy of fit between the shoes and the sleeves is compensated for by the rubber. In the construction shown, the track is of the kind described in Specification 563,628, the shoes being connected together by C-shaped connectors 17 and pins 16 passing through the pivot sleeves 11, rubber sleeves 19 being interposed between the pins and sleeves 11. The shoe comprises upper and lower plates 21, 20 clamped on to the sleeves 11 by three bolts 27 housed in recesses in the plates, and the upper plate 21 may be formed as shown with a rubber facing 40 vulcanized thereto to form a path for rubber-faced rollers on the vehicle when such are used. The rubber sleeves 35 are vulcanized to the pivot sleeves 11. In a modification, the upper and lower parts 21, 20 of the shoe are provided with rubber pads vulcanized thereto, these pads gripping the sleeves 11.
Patent GB-1268183-A (GB)
Title: Apparatus and method for the detection, amplification and identification of small potential differences
Inventor: ASH ARTHUR EDWARD MICHAEL
IPC: A61B5/04
Filed: 1968-04-10
Abstract: 1,268,183. Voltage detectors; electromedical measurements. A. E. M. ASH and J. W. T. ROOPE. July 8, 1969 [April 10, 1968], No. 17290/68. Headings G1N and G1U. Apparatus for detecting, and identifying the polarity of, low potential differences comprises a differential amplifier 1 and two threshold circuits 2, 3 which operate indicators 4A, 5A (e.g. lamps) when the amplifier output exceeds a positive or negative threshold respectively. Threshold circuits 2, 3 may be Schmitt triggers with a variable threshold, and amplifier 1 may have a zero adjustment. The apparatus may be energized from batteries, an indicator connected to Zener diode comparator 6 giving warning of low battery voltage. The apparatus is applicable to the measurement of biopotentials, e.g. for observing brain and heart potentials or detecting ovulation. For the latter, onset of ovulation is indicated by a change in the polarity of the potential between a vaginal probe, comprising a metal tube with a conductive silicon rubber sheath and insulating handle, and a belt lined with conductive silicon rubber placed around the leg.
Patent GB-604120-A (GB)
Title: Improvements in record playing systems
IPC: H04B1/20
Filed: 1944-09-11
Abstract: 604,120. Gramophone reproducing circuits. BURGESS, A. F. (Zenith Radio Corporation). Sept. 11, 1944, No. 17312. [Class 40 (iv)] [Also in Group XL (c)] A record playing system comprises an oscillator generating a carrier wave, which is frequency modulated by an impedance varying pick-up, and an amplitude limiter which limits to a predetermined substantially constant intensity the amplitude of the carrier wave. As shown, Fig. 1, the inductance of coil 5 is varied by movement of stylus 2, described in Specification 591,865, in the grooves of the record so as to frequency modulate the carrier wave generated by oscillator 14. The modulated oscillations are impressed through a tuned transformer to an intermediate frequency amplifier 23 where they are amplified to above a predetermined intensity and through a further tuned transformer to amplitude limiters 32, 45. In tube 32 the positive halfcycles are partially limited and negative halfcycles completely limited to the predetermined intensity. The output across inductance 36 is applied to the grid of tube 45 in opposite polarity to the signal applied to the grid of tube 32 so that both half-cycles are completely limited. In this way any amplitude modulation which may be present is eliminated. Coils 51, 59 are tuned to the mean frequency of the frequency modulated wave by condensers 54, 60, so that when a signal of this frequency is impressed on coil 51, equal and opposite voltages will be produced across equal resistors 67, 68 due to the 90 degrees phase difference between the primary and secondary potentials of the transformers. When the applied frequency departs from the mean frequency, this phase difference varies and unequal voltages are produced across resistors 67, 68, the difference of the two being the desired signal voltage which is impressed through volume control resistor 69 and amplifier 71 to loud-speaker 72. Since the high audio-frequencies are usually impressed on the record in diminished amplitude, a pickup compensation circuit, comprising resistor 73 and condenser 74, is included to emphasize these frequencies.
Patent GB-251476-A (GB)
Title: Improvements in process and means to facilitate separation of mud or like matter from scrapers for wheel and other surfaces
IPC: B60S1/68
Filed: 1925-07-06
Abstract: 251,476. Howard, A. S. July 6, 1925. Wheel-scrapers on vehicles. - Scrapers for wheel tyres and other surfaces are heated to prevent the adherence of mud thereto, for example by admitting an engine exhaust into a hollow scraper. As shown applied to a tractor having wheels with three rims F, F<1>, F<2>, the exhaust pipe C from the engine B has primary branches C<1>, C<2> leading to secondary branches D, D<1> supported between the rims by straps E secured to mudguards &c. Scrapers H, H<1>, Figs. 4 and 6, are secured to the branches D, D<1> by bolts H<3> and have edges H<3> acting on the sides of the rims. The engine exhaust passes into the scrapers through slots J<1> in the branches D, D<1> and escapes through slots J<2> in the scrapers. The wheel rims are solid or hollow and are connected to the hub L by spokes L<1> having lugs L<2> on the rims, and straps M are each secured to several spokes and to a rim. When road grips G are not employed, the scrapers may act upon the treads.
Patent GB-918539-A (GB)
Title: Improvements in or connected with sponge mops
Inventor: SADLER LESLIE REGINALD
IPC: A47L13/24
Filed: 1959-05-21
Abstract: 918,539. Pivoted handles. BETTERWEAR PRODUCTS Ltd. May 21, 1959, No. 17318/59. Addition to 819,299. Class 61. The sponge mop of the parent Specification is provided with means whereby the pivoted handle receiving socket 1 can be locked in relation to the mop head. The plate 4 to which the curved extensions 3 of the socket 1 are pivoted, is provided with a member 19 pivoted at 20 on a raised portion 5 of the plate and adapted to be moved about an axis transverse of the pivoted axis of the socket extensions, coacting means being provided on the member and socket which on swivelling the member, can be brought into engagement. As shown, the coacting means comprise projections 21, 22 on the member 19 and holes 24, 25 in the socket, the member 19 being turned on the pivot 20 by a finger-piece 23. In a modification, the pivoted member has two oppositely-directed projections each adapted to be engaged selectively in one of two corresponding holes in the socket to lock the mop head in either of two different positions.
Patent GB-821379-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/12
Filed: 1957-05-31
Abstract: 821,379. High-tension switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 31, 1957 [June 8, 1956], No. 17342/57. Class 38 (5). A circuit-interrupter suitable for switching capacitor banks and opening load currents comprises an interrupter 66 and a series insulator 67, both operated by rotation of an insulator stack 3 which operates the interrupter by means of a toothed wheel 15 driving a second toothed wheel 17 by means of a chain 16. The wheel 17 is fixed to a rotatable shaft 18 having an arm 19 with a pin 20 which engages a slot 21 in a lever 22. The latter is fixed to a shaft 23 carrying a bevel gear 61 meshed with a similar gear 60 fixed to a rotatable shaft 59 carrying a lever 62 with a pin 64. A tension spring 65 interconnects the pin 64 and a pin 56 on a lever 55 which is coupled to a contact actuating rod 50 by a shaft 54 and arm 53. In the interrupter chamber 28 which may be sealed and contain selenium hexafluoride or other gas, a fixed insulating rod 44 carries the fixed contacts 45, which are biased toward each other by springs 46, and the movable contacts are pivoted at 42 on insulating rods 38, 39 and coupled to the actuating rod 50 at pivots 51. To open the interrupter the stack 3 is rotated and operates the shaft 59 so that a projection 63 on the lever 62 engages a projection 58 on the arm 55 to rotate the shaft 54 and operate the actuating rod 50, the spring 65 passing over centre to give a snap-action movement. On closing, the projection 63 engages a second projection 58 on the arm 55 causing snap-action in the reverse direction. The isolator arm 11 is arranged to rotate on its axis for ice-breaking and then to move to the dotted position, Fig. 1, a spring 70 on a plunger 69 counter-balancing the isolator arm. Specification 736,090 is referred to.
Patent GB-377380-A (GB)
Title: An improved internal combustion rotary engine
IPC: F01C1/356
Filed: 1931-06-15
Abstract: 377,380. Rotary engines. CIMINO, G., 12 int., Via Degli Asili, Leghorn, Italy. June 15, 1931, No. 17358. [Class 110 (ii).] A four-cylinder rotary internal-combustion engine has four circular working chambers formed by semicircular grooves in the stator 1 and rotor 5 and one piston 7 in each working chamber ; the pistons are spaced at 90‹ to one another. Sliding abutments 9 are actuated by cams 23 on a shaft 15 which is rotated by a chain 17 and sprockets 16, 19 from the main shaft 18. Packing grooves 4 contain spring rings. Working fluid is distributed by a rotary valve 25 having ports 30 which cooperate with inlets 27 on a flange 28 bolted to the stator. The inlets 27 feed through passages 10 to the working chambers when the abutments are at the bottom of their strokes. The valve 25 is driven off the shaft 18 by sprockets 32, 34, and a chain 33. A reciprocating compressor having two opposed cylinders with pistons driven by a crank on the shaft 18 supplies compressed fuel from a carburetter or compressed air to a carburetter. Sparking plugs 35 are placed at 60‹ to vertical and exhaust ports 36 180‹ behind the plugs. The Provisional Specification states that the rotary valve may be replaced by poppet valves, and the engine may be in separate units of one working chamber. More than one piston and one abutment may be provided to each chamber.
Patent GB-597276-A (GB)
Title: Improvements relating to electric follow-up mechanism
IPC: G05D3/12
Filed: 1945-07-07
Abstract: 597,276. Electric control systems. PRECISION DEVELOPMENTS CO., Ltd., and OLAH, G. July 7, 1945, No. 17387. [Class 40 (i)] In a follow-up system of the type described in Specification 556,287, in which a permanently energized coil acts to apply a brake which is removed by the action of compensating coils energized at the same time as the servomotor, the two compensating coils of the prior system, one or other of which is energized according to the direction of rotation of the servomotor, are replaced by a single coil energized through a rectifier network. As shown in Fig. 1, coil 10 which applies the brake is connected in series with motor field 3 across the supply, whilst compensating coil 11 is connected across armature 4 through rectifier bridge 9 so that it opposes coil 10 whichever way follow-up switch C is turned. As shown in Fig. 2, coil 10 is connected across the supply and coil 11 is also connected across the supply through one of rectifiers 2 when the follow-up switch is actuated. Alternatively, coil 11 may be energized through resistor 12 and switch 13 which may be actuated by any of the means described in Specification 578,490 for modifying the action of the brake, e.g. when a predetermined speed is reached. A rectifier 14 is included if the supply is alternating.
Patent GB-421419-A (GB)
Title: Improvements in, and relating to, mould sanding apparatus
IPC: B28B7/38
Filed: 1933-06-20
Abstract: 421,419. Coating moulds with sand &c. BRIGHTSIDE FOUNDRY & ENGINEERING CO., Ltd., Don Road, Sheffield, and COLLIER, E. W., Marks Tey Lodge, Coggleshall Road, Marks Tey, near Colchester. June 20, 1933, No. 17585. [Class 87 (ii)] In apparatus for lining moulds with sand, dust, or similar material, a sand container 2 is rotated to-and-fro to cause a mould 20, placed in the container in an inverted position, to assume an upright position in the sand on the forward rotation and to assume an inverted position near the mouth 3 of the container on the return movement. The container has trunnions journalled in bearings on standards 6 and is rotated to-and-fro from a driven shaft 14 by a pinion 7, toothed quadrant 8, rod 12 and eccentric 13. A shelf 15 is pivoted at 16 and supported on stops 17 in the upright position and an inverted mould is placed on the shelf. The container is rotated clockwise to the position shown in dotted lines. The mould is thus moved along the top of the container and, being now in an upright position, is filled with sand, the shelf 15 falling against the wall of the container to prevent sand escaping therefrom. On the return movement, the mould, in an inverted position due to rotation of the container, moves along slides 19 and the sand falls out of the mould but leaves a deposit therein, and the mould comes to rest in an inverted position in a well 18 adjacent the mouth 3.