baber/WOPTO huggingface dataset:
Patent GB-602787-A (GB)
Title: Improvements in or relating to steadies for lathes and the like
IPC: B23Q1/76
Filed: 1945-12-10
Abstract: 602,787. Steady rests. CLARK, A. E. Dec. 10, 1945, No. 33398. [Class 83 (iii)] A work steady for lathes &c. comprises a circular frame in separable halves, an internally profiled tripartite cam also in halves, arranged within the frame and work engaging rollers radially slidable relatively to the axis of the frame and each moved by a follower. engaging the cam when the latter is rotated. The separate halves of the circular frame are hinged about a bolt 3, Fig. 1, and releasably secured by an eccentric clamp, the base of the bottom half being shaped to fit the machine bed and provided with a clamping bolt to secure it thereto. A ring-like cam 9, Fig. 3, also in halves, has three equally spaced lobes and slides around a recess 10, formed by the frame and a cover-plate 7, under the action of a hand lever 11 secured to the upper half of the cam ring. The cam lobes engage extensions of three spindles 21 carrying steady rollers 20 to move these and their guides concentrically inwards. Adjusting bolts 24 are provided to act as stops after the cam has been used to position the steady rollers. The cam-ring lever may then be moved to the withdrawn position. A set-screw 16, Fig. 3, with a shaped end engaging a groove in the upper half of the cam-ring is tightened prior to opening the steady for insertion of a workpiece, the cam-ring half and the upper half of the steady then move together about the hinge 3. The lower steady rollers slide outwardly on release by gravity, but the upper steady slide is fitted with withdrawal springs for this purpose.
Patent GB-1414857-A (GB)
Title: Up-and-over gate
IPC: E06B11/02
Filed: 1973-07-14
Abstract: 1414857 Gate B H S STEPHENS 14 July 1973 33649/73 Headings E1B, E2F and E2M A gate comprises a fixed post 11, a movable post 12 and a plurality of interconnecting bars 10 in a generally vertical plane, each bar 10 being pivoted at one end to the fixed post and at the other end to the moveable post, each pivot point 9 being offset from the one below it in the direction towards the fixed post such that the moveable post may be swung from a "gate closed" position in which the bars are substantially horizontal to an "open" position above the fixed post in which the bars are substantially vertical. A socket 1 may be provided in the ground to receive the moveable post 12 and a lock may be provided to retain the post 12 in the socket. The gate is suitaby used as the extension of an existing farm gate.
Patent GB-1438651-A (GB)
Title: Angular direction sensing devices
IPC: G01P13/02
Filed: 1972-07-19
Abstract: 1438651 Measuring wind direction electrically DEFENCE SECRETARY OF STATE FOR 1 Oct 1973 [19 July 1972] 33662/72 Heading G1N An angular direction sensing device comprises a magnet 1 on the end of rotor shaft 2 the rotor 4 of which engages resistance element 5 of rotary potentiometer 3, which potentiometer is rotatable, with encasement 8 mounted by bearings 9 to tube 10 on support member 13, in response to the action of the wind or pin 14 on the encasement whereby the output signal from the potentiometer is a function of the angle between a given tapping point on the potentiometer and the magnet which aligns itself with the earth's magnetic field, so that the output signal is independent of the orientation of the support member. The angular range of the device is arranged to be greater than 360 degrees by the provision of a two-state device 6 which can apply D.C. to either one of two supply positions  of the potentiometer, a trigger device operative to actuate the two-state device to change the voltage from one of the supply positions to the other at a given relative angular position of the rotor and the given tapping point and means for bridging the position to which the voltage is not applied. The latter feature is described in detail in Specification 1297111 (Division G1).
Patent GB-342009-A (GB)
Title: An improved method of and means for treating green tea leaf
IPC: A23F3/12
Filed: 1929-11-05
Abstract: 342,009. Tea manufacture. COLOMBO COMMERCIAL CO., Ltd. and KUP, F. A., Thames House, Queen Street Place, London. Nov. 5, 1929, No. 33682. [Class 129.] Green withered tea leaf is subjected to a cell disintegrating process at low temperatures before being subjected to the usual rolling and curling process. The tea leaf is fed on to a turntable a rolling on ball bearings and turned b y the usual gears e, f, and is subjected to the action of rollers g supported on axles h adjustably supported by bars i. The bars i are carried by a frame so that the pressure of the rollers can be adjusted by springs k and nuts i<1>, m. Water may be circulated to the rollers to keep the temperature below fermentation point.
Patent GB-887554-A (GB)
Title: Improvements in fibrous heat-insulating materials
Inventor: BELL ANGUS SMITH
IPC: D04H1/551
Filed: 1957-10-29
Abstract: 887,554. Agglutinated fibrous materials. BRITISH CELANESE Ltd. Oct. 28, 1958 [Oct. 29, 1957], No. 33711/57. Classes 42 (2) and 140. Heat insulating material comprises a batting of staple fibres of which at least 30% by weight are thermoplastic, the fibres of the batting being bonded together by coalescence of thermoplastic fibres at points distributed throughout the thickness of the batting and the batting embossed in a pattern of intersecting lines but only to such a depth that the batting is resilient at the lines. Specified thermoplastic fibres are those of cellulose acetate, polyvinyl chloride acetate, vinylidene chloride-vinyl chloride copolymers, vinyl chloride-acrylonitrile copolymers, vinylidene chloride, acrylonitrile copolymers, homopolymers and polymers of acrylonitrile containing vinyl pyridine or acrylamide, nylon and polyethylene terephthalate. The batting may be made by carding or air-deposition. Bonding may be effected by directing hot gases or steam on to the batting to cause local incipient fusion of the fibres; or a solvent for the thermoplastic material may be caused to penetrate the batting in the form of vapour or a very fine spray; or the fibres may be sprayed with a plasticizer before or during carding. Specified plasticizers for cellulose acetate are triacetin, dimethyl phthalate, di- (methoxyethyl) phthalate, tri - (monochlorethyl) phosphate, diethyl phthalate, dibutyl phthalate and triphenyl phosphate. Embossing is carried out by depressing and heating the surface of the batting along intersecting lines and then cooling the batting. The embossing members may comprise perforated drums or sleeves driven, heated and urged together or set at a gap; or may comprise thick wire mesh or expanded metal. As shown, a material according to the invention is constituted by a batting comprising cellulose acetate fibres 1, bonded to one another by coalescence at points 2, through the batting. Both surfaces of the batting are embossed in a series of lines 3, forming a pattern of regular hexagons 4. As indicated at 5, the embossing is such that the batting is compressed along the lines but only to such an extent that it still remains resilient.
Patent GB-1310554-A (GB)
Title: Building
IPC: E04B1/35
Filed: 1970-07-10
Abstract: 1310554 Laminates L FELCIAI 10 July 1970 [29 April 1970] 33747/70 Heading B5N A stressed-skin sandwich material used for building comprises walls which are interconnected by a plurality of rib members, part of each rib member being inclined with respect to part of another of the rib members and being fixed thereto with fibres and resin or strips or pieces of fabric and adhesive, in the angle between the parts of the rib members, the spaces between the walls being filled with granules or pieces, variously shaped, of cellular, unicellular or expanded material. The ribs which may have flanges may be joined at right angles or other suitable angles by spraying glass or other fibres and resin into the angles. The ribs may be vertically reinforced by corrugated or other suitable sheeting on one or both sides of the rib. The cellular material may be of a phenolic, polyurethane, polystyrene, cellulose acetate, polyvinyl chloride, epoxide or silicone resin. The sandwich material may be assembled in a mould of wood, aluminium, steel or plastics material.
Patent GB-339322-A (GB)
Title: Improvements in anti-aircraft prediction apparatus
IPC: F41G5/08
Filed: 1929-05-31
Abstract: 339,322. Tristram, G. H., and Buckle, C. May 31, 1929. Divided on 339,294. Gunnery-calculators; computing- scales. - Fuze-prediction apparatus for use with anti-aircraft guns comprises a pivoted sight h which at any chosen zero time can be set with respect to a sector plate a to give the angle of sight, the eye-piece being rotatable to give the clock-course of the target on a dial h<2>. This setting is then adjusted to predict a future angle of sight for the observed clockcourse and an assumed target speed. The fuze necessary for the future target position is then predicted by introducing adjustments for the height and true speed of the target. Figs. 1 and 2 show opposite sides of the sector plate a to which the sight h is pivoted at d so as to be adjusted on the target by operating a handwheel i. Fig. 1 shows one side of the sector plate provided with curves o giving corrections to the present angle of sight along radial lines representing clock-angles, the future angle of sight being read by a mark k<1> on a scale k<2> when a pointer i<3>, geared to the mark k<1>, is set by a handwheel i<4> to the appropriate clock-angle curve as read on the dial h<2>. The other side of the sector plate, Fig. 2, has fuze curves l<5> which are read in conjunction with a height scale p by a pointer r when a mark l<2> adjustable for true speed of target is moved along one of a number of angle-of-sight correction curves l<4> on a fixed plate l. The future angle of sight, future fuze, and clock-course obtained from the apparatus are used to set the clock-code plotter described in Specification 339,294, and the speed of the target is preferably obtained by the apparatus described in Specification 339,361.
Patent GB-870311-A (GB)
Title: Improvements in or relating to masts
Inventor: DAVIES GWYN TUDOR
IPC: E04H12/10
Filed: 1959-10-06
Abstract: 870,311. Masts. PIRELLI-GENERAL CABLE WORKS Ltd. Oct. 6, 1959, No. 33870/59. Class 20(1) A mast comprises two tapering channel sections 1 connected by vertical plates 2 welded to the sides of the sections and V-section horizontal plates 5 welded to the tops of the plates 2.
Patent GB-618716-A (GB)
Title: Improvements relating to secondary battery plates
IPC: H01M4/72
Filed: 1946-11-15
Abstract: 618,716. Batteries. STONE & CO., Ltd., J., and SCHOFIELD, W. Nov. 15, 1946, No. 33959. [Class 53] An accumulator plate comprises a diaphragm f having paste-retaining formations such as fins e and a surrounding frame a. In order to reduce gassing from the active material, the frame is provided with integrally moulded ribs g which project beyond the fins e and the surface of the active material. The plate may be divided into panels by ribs c, d. The ribs g on the top and bottom portions of the frame may be divided, as shown, to allow for the use of glass rod or ebonite fork separators. Specification 455,308 is referred to.
Patent GB-604496-A (GB)
Title: Improvements in or relating to h.f. energy detectors
IPC: G01R21/04
Filed: 1945-12-14
Abstract: 604,496. Impedance matching. ROBBINS, R. C., and HVINDEN, T. P. Dec. 14, 1945, No. 33973. [Class 40 (viii)] [Also in Groups XXXVI and XL (c)] In a unit for the measurement of RF power by its effect on a resistance having a large negative temperature coefficient, a thermistor bead 1, Fig. 1, is soldered by means of its lead wires 2 between brass rods. 3, 4, cemented into a sleeve 5 of polystyrene or dielectric material having a similarly lowpower factor at high frequencies, gripping knurled rings 3b, 4b, on the rods. Standardisation of dimensions and use of such dielectric material ensures consistent RF characteristics between units. In Fig. 2, a thermistor unit is assembled in a rectangular wave-guide termination 5, coupled through a window in plate 9, to a wave-guide having an adjustable matching plunger. The shorter brass rod 3 is bolted to one side of the wave-guide termination, the longer rod 4 being connected to terminal 11 and protruding through a brass tube 6 which forms one plate of a byepass condenser having the insulating sleeve for dielectric. The rod dimensions are such that the thermistor bead lies mid-way between the longer walls of the wave-guide section. Critical dimensions are given for correct operation.
Patent GB-833395-A (GB)
Title: Improvements in or relating to oil filters
IPC: B01D35/14
Filed: 1958-10-24
Abstract: 833,395. Filters. MOATTI, G. Oct. 24, 1958, No. 34081 /58. Class 46. An oil filter comprises a finned body 1 having a well 7 communicating with an inlet 6. A filter block comprises stacked filter elements gripped between the caps 12 and 25 through a rod 24 engaged by a nut 26. A projection 14 on cap 12 is guided in a bore 10 in the well and the nut 26 slides in the sleeve 11. Each filter element consists of an inner ring 17 and an outer ring 16 joined by ribs 18. The ring 16 has orifices 21 and is of greater depth axially than the ring 17 and filtering gauges 20 are stretched over the two faces of the rings 16 and 17. Oil flows from the well 7 between and through the gauges 20 of two successive elements and through the orifices 21 as shown by the arrows F and F, to the outlet 8. A calibrated spring 27 between the lid 3 and cap 12 is mounted such that, if the pressure increases in the well 7 due to clogging &c., the filter block will be raised in opposition to the spring 27 and oil will be allowed to bypass the block. The filter is cleaned by removal of the lid 3, spring 27 and nut 26 which allows the filter block to be reversed.
Patent GB-915262-A (GB)
Title: Improvements in/or relating to hypodermic injection apparatus
Inventor: WILSON KENNETH MACKENZIE
IPC: A61M5/28
Filed: 1957-11-01
Abstract: 915,262. Hypodermic injection appliances. AVIATION, MINISTER OF. Jan. 29, 1959 [Nov. 1, 1957 (2)], Nos. 34135/57 and 34136/57. Class 81 (2). A hypodermic injection appliance has a needle normally enclosed within a collapsible ampoule and a spring-loaded plunger which, when released, collapses the ampoule so as to drive the needle through the end wall of the capsule and eject the contents. The ampoule has a corrugated side wall 2 and a rigid end cap 3 and the needle 5 is held centrally within it by disc-shaped spacers 4. A drive spring 23, having an seating 9, is normally held compressed by a spring catch 12, the turned-over, upper ends of which are held by a dolly 22 in a cap 17. When the dolly 22 is pressed downwards, this catch is released and the spring 23 drives the end of the ampoule downwards, so that the needle 5 is forced out through a sealing washer 8 into the patient's flesh and the contents of the ampoule are forced through it. To prevent inadvertent release of the spring, a retaining clip 25 is engaged in a groove 24 in the stem of the dolly until the syringe is required for use. The Specification also contains a description of a rechargeable type of syringe and also of a modified release device.
Patent GB-1481688-A (GB)
Title: Disc brakes
IPC: F16D65/18
Filed: 1974-09-17
Abstract: 1481688 Pads for spot-type disc brakes AUTOMOTIVE PRODUCTS Ltd 17 Sept 1974 [21 Sept 1973] 34183/74 Heading F2E A disc brake pad 43 includes a back plate 58 which has a pair of spaced abutments 59, 60, disposed at the ends of a recess adapted to receive part, 33, of fixed support structure of the brake so that the abutments oppose brake torque for either direction of disc rotation; one only-59-of the abutments is formed as an angled tongue which projects from the main part of, and lies in the plane of, the back plate, and has an outer arm which extends towards the other abutment; part 33 comprises an arm for locating, and guiding movement of, the brake pad. Preferably the other abutment 60 engages in a recess defined by a lip 61 of an angled plate 47 bolted to arm 33. For pad removal, plate 47 is removed and the pad pivoted by abutment 59 until abutment 60 is clear of part 33, after which the pad is moved along a circular path centred on the disc axis until it is clear of part 33. Figs. 1 to 4 of the drawings accompanying the complete Specification of the present application are identical with the drawings accompanying the complete Specification of related Specification 1,481,687, and attention is directed to the abridgment of that application where Figs. 1-3 are reproduced. Reference numerals in the present abridgment may be read in association with those Figures, where appropriate. In Figs. 5, 6 (not shown) the liquid inlets and outlets are provided in the inboard pistons, whose outer ends are shaped to accommodate the plate (40).
Patent GB-1102517-A (GB)
Title: Improvements in or relating to harvesters
IPC: A01D34/535
Filed: 1966-07-29
Abstract: 1,102,517. Forage harvesters. J. A. FREUDENDAHL. 29 July, 1966 [3 Aug., 1965], No. 34188/66. Heading A1F. A forage harvester having a rotatable drum 1 carrying a number of knives or flails pivotable about shafts parallel with the drum axis is characterized in that each shaft 3 is substantially rectangular and each flail 5 comprises a substantially triangular eye through which the shaft passes. Upon contacting an obstruction the flail will pivot rearwardly to the position indicated, the eye and the shaft coacting to resist such rearward pivoting. In a further embodiment the shaft is arranged with its wide surfaces substantially radially disposed in relation to the drum 1.
Patent GB-412950-A (GB)
Title: Improved photographic material for the production of colour photographs
IPC: G03C7/28
Filed: 1932-12-02
Abstract: 412,950. Colour photography. GASPAR, B., 38, Innsbruckerstrasse, Schoneberg, Berlin. Dec. 2, 1932, No. 34228. Convention date, Dec. 2, 1931. [Class 98 (ii).] Mixed tone values are obtained in a dyed silver halide layer by employing a mixture of dyes having differing powers of resistance against the action of reagents, more particularly oxidizing or reducing agents, or solvents. Three-colour effects are obtained on a material composed of two layers applied to the same side or to opposite sides of a support. Thus, for portrait or interior work, the red layer is coloured with a dyestuff mixture comprising a rapidly bleaching purple red, e.g. Azofuchsine and a slowly bleaching orange or yellow e.g. Pyramine Orange, and the blue-green layer with a mixture of a rapidly bleaching blue, e.g. Benzo Pure Blue and a slowly bleaching reddishorange, e.g. Pyramine Orange. After exposure behind red and green selection positives, and development, the diffusely-coloured images are treated with a bath containing thiocarbamide and citric acid whereby the dye is destroyed at the points of the silver images, leaving the darker portions of the images coloured respectively red and blue and the lighter portions orange. For landscapes, the red layer contains a rapidly-bleaching red and a slowly-bleaching yellow ; and the blue layer, a rapidly bleaching yellow and a slowly bleaching blue. An example is given. Fantastic colour effects, e.g. for advertising &c., may be similarly produced. The treatment of the developed layers may be by the methods described in Specifications 395,718, 397,159, and 397,188 ; or the exposed material may be tanned, during or after development and then treated with a solvent. As an example of differently-soluble dyestuffs, the red layer is coloured with an alcoholic solution of Carmine and Auramine and the other layer with an alcoholic solution of diphenyl - pararosaniline - chlorhydrate and Auramine ; after development and tanning with a copper sulphate-potassium bichromate bath, washing and drying, the material is treated with 10 per cent aqueous alcohol in which the yellow dyestuff in both layers dissolves more readily. Reference has been directed by the Comptroller to Specifications 395,718, 397,159, and 397,188.
Patent GB-1125603-A (GB)
Title: Improvements in or relating to fluid operated actuators
Inventor: VENNER MICHAEL
IPC: F15B15/12
Filed: 1964-08-21
Abstract: 1,125,603. Flexible tubes. SPERRY RAND Ltd. 17 Nov., 1965 [21 Aug., 1964], No. 34230/64. Heading F2P. [Also in Divisions E2 and F1] A fluid-pressure actuator for operating, e.g., the ventilating lights in a glasshouse, comprises a flexible tube 1, of, e.g., rubberized canvas or plastics having metal end caps 2, 3 and within it a helical stainless steel spring 7 so that normally the tube assumes an arcuate shape. The end 2 is connected to the light and the end 3 which includes an inlet 6 for operating fluid, in the present case water from an irrigation system, to an anchorage. On the admission of water to the tube the tube straightens, to open the light. Two helical springs or a figure-of-eight spring may replace the spring 7. The spring or springs may be partly embedded in the tube. A small outlet allows water to escape from the tube whence the spring returns it to its arcuate shape to close the light. A temperature-responsive valve may control the admittance of water to the tube to open and close the lights in accordance with temperature.
Patent GB-672965-A (GB)
Title: Improvements in or relating to impellers for hydraulic power transmission apparatus
Inventor: SALERNI PIERO MARIANO
IPC: F04D3/00
Filed: 1947-12-29
Abstract: 672,965. Centrifugal pumps &c. HYDRODYNAMICS, Ltd. Jan. 27, 1948 [Dec. 29, 1947], No. 34432/47. Class 110(i) [Also in Group XXIX] In a hydraulic torque converter comprising an impeller and a turbine, the impeller blades have a portion remote from, and nearer to the axis of rotation than, the outlet end and turned in a forward direction. The blade passages are backwardly directed at the outlets 1, and the forwardly directed blade portions may comprise the inlet ends 8, 9, 10. Alternatively, the inlet and delivery ends of the blades are directed axially. Alternate blades 5 are longer than the adjacent blades 4, 6. The Provisional Specification refers to centrifugal fans, blowers and compressors, and fluid flywheels.
Patent GB-448122-A (GB)
Title: Improvements relating to the manufacture of articles partially composed of spongey or cellular rubber or similar material
Filed: 1934-11-30
Abstract: 448,122. Moulding articles of spongy or cellular rubber and fibres. HOWARD, J. A., 1, Palace Road, Streatham Hill, London. Nov. 30, 1934, No. 34494. [Classes 70 and 87 (ii)] A method of making articles composed partly of spongy or cellular rubber or the like, and partly of upholstery fibre consists in distributing a rubber mixture prepared for the formation of spongy or cellular rubber over the surfaces of open textured masses of upholstery fibres individually coated and held together by rubber deposited from latex, filling a volume, e.g. defined by a mould, with the coated masses, and heating to cause the rubber to expand and coalesce, whereby the individual masses of fibres are embedded in spongy or cellular rubber and the mould or other volume is completely filled. The masses of fibres mav take various shapes, may be covered completely or only in part by the rubber, and may be distributed regularly or at random in the volume. As shown in Fig. 1, amorphous lumps a are completely coated with rubber b. In the form shown in Fig. 3, the fibre masses are rectangular bars arranged to cross at right angles in alternate rows, and the rubber is placed between the vertical faces only.