baber/WOPTO huggingface dataset:
Patent GB-798976-A (GB)
Title: Brake block composition
Inventor: CHARLES LOUIS ERNEST DE GAUGE
IPC: F16D65/06
Filed: 1956-05-10
Abstract: The composition brake block forming the subject of the parent Specification is modified by the incorporation therein of up to 30 per cent by weight of a staple organic reinforcing fibre, and the binder matrix comprises a heat resistant rubber, vulcanized in situ, and selected from natural rubber, polychlorbutadiene, and butadiene-styrene, and butadiene-acrylonitrile copolymers.  The staple organic reinforcing fibre may be of wood, cellulose flock, viscose, rayon, cellulose acetate, cotton, wool, silk, alginate, polyamide, polyethylene, polyhaloethylene, polyester, polytetrahaloethylene, polyacrylonitrile which may be thermally modified, or other cellulose, protein, or synthetic polymeric material.  The block preferably comprises 25 to 75 per cent of ferrous metals, at least 50 per cent of which consists of cast iron chips or granules, 10 to 60 per cent by weight of friction particles, either of hard vulcanized rubber containing 50 to 70 per cent of inorganic fillers and vulcanizing ingredients, or of synthetic resins such as polymerized cashew nut shell oil, up to 30 per cent, preferably 2 to 12 per cent by weight of staple reinforcing fibre, and from 8 to 32 per cent by weight of a rubber matrix, vulcanized in situ and comprising 2 to 12 per cent by weight of the block of the selected rubber and 4 to 20 per cent by weight of the block of inorganic and organic fillers and vulcanizing ingredients such as sulphur, litharge, zinc oxide, carbon black and barytes.  The rubber matrix may be stiffened with up to 6 per cent by weight of the block of a thermosetting resin such as phenolaldehyde or cashew nut shell oil resin. Specification 728,296 is referred to.
Patent GB-1094911-A (GB)
Title: The preparation of cyclic alkenes
IPC: C07C5/11
Filed: 1965-04-06
Abstract: Cycloalkenes are produced by hydrogenating aromatic hydrocarbons using a ruthenium catalyst in the presence of an alcohol.  Preferred alcohols are C1-C4 alkanols.  The catalyst may be supported, if desired, on aluminium oxide, magnesium oxide, silicon oxide, asbestos or carbon. Examples are given of producing cyclohexene from benzene, and a mixture of two isomeric dimethylcyclohexenes from o-xylene. The reaction may be in the liquid or the vapour phase.
Patent GB-274616-A (GB)
Title: Improvements in or connected with prismatic monoculars, binoculars, prismatic telescopes, and the like
IPC: G02B23/18
Filed: 1926-06-10
Abstract: 274,616. Barr & Stroud, Ltd., Jackson, H. D., and French, J. W. June 10, 1926. Telescopes; field-glasses.-The telescopic portion of a prism telescope or binocular comprises a casing which has one aperture only in one of its walls through which the prism holder after being assembled can be inserted. The prism system may be adjusted relative to the. holder before insertion in the casing and after insertion relatively to the casing by screws 7, 8 as shown. The aperture may be in the top, bottom, or side of the casing, and the holder supported in guides 5, 6.
Patent GB-311425-A (GB)
Title: Improvements in display stands and the like
IPC: A47F5/10
Filed: 1929-05-11
Abstract: 311,425. Bouvier, S. G., and Flejo, J. L. C. M. May 11, 1928, [Convention date]. Card and like stands; rack stands.-A display stand consists of two or more vertical plates hinged together, some of the plates having horizontal slits to receive shelves. In the con struction shown main vertical plates d, e are hinged together at j each plate having a horizontal slit to receive a shelf k<1> which is further supported upon a pair of vertical plates h, f hinged together, one plate being hinged to a main plate. In a modification two separate parts, each consisting of a pair of vertical plates hinged together, are connected by a shelf secured in horizontal slits. Some of the main plates may have hinged flaps to partially support the shelves. Fig. 6 shows a flap having a part v on each side of a main plate m and connected by a hinge fitting v mounted in a recess w in the plate m. The Specification as open to inspection under Sect. 91 (3) (a) comprises also display stands and articles of furniture consisting of a number of vertical plates provided with interengaging vertical slots and having horizontal slits to receive shelves. This subject-matter does not appear in the Specification as accepted.
Patent GB-1044558-A (GB)
Title: Variable spray nozzle
Inventor: MISCOVICH JOHN ARTHUR
IPC: B05B7/00
Filed: 1964-04-10
Abstract: 1,044,558. Rotary joints. JOHN W. STANG CORPORATION. April 10, 1964, No. 14848/64. Heading F2G. [Also in Divisions B1, B2 and F1] A nozzle suitable for spraying foamed materials for combating fires comprises a discharge barrel 11, a chamber 24 separated by many times its own length from the barrel outlet and located between the barrel and a liquid supply pipe 41, a member 42 adapted to direct the liquid coaxially into a Venturi 43, air supply ports 44, 46 to said chamber designed so that air sucked through the ports by Venturi action is mixed with the liquid passing into the Venturi in proportion to the volume and velocity thereof, and pivoted valve members 47 arranged to open or close said ports. The barrel 11 is tortuous and includes a vertical swivel joint 16, a horizontal swivel joint 19 and sections 18, 21, 22 and 23 connected as shown in Fig. 1. The outlet of the barrel 11 is controlled by a toothed disc 48 eccentrically mounted on the barrel outlet and provided with a plurality of orifices 49 which differ in configuration. The disc is rotated to register the selected orifice by a motor 54 through gear means 53, the operation being remotely controlled by switch and detent means, Fig. 5 (not shown). The valves 47 are pivoted to the open position by the suction induced by the liquid flowing in the chamber 24. In the embodiment of Figs. 6 and 7 (not shown), the Venturi is in two relatively rotatable portions, the chamber is generally cylindrical, and the valve means controlling the air inlet is manually adjustable so that the discharge may be in the form of a continuous liquid stream if required. The nozzle may be used to spray a slurry, a mixture of liquids, or dry materials.
Patent GB-584281-A (GB)
Title: Pump piston
IPC: F04B53/12
Filed: 1944-08-08
Abstract: 584,281. Reciprocating pumps. DEHN, F. B. (Adel Precision Products Corporation). Aug. 8, 1944, No. 15053. [Class 102 (i)] In a double-acting reciprocating pump, the piston 11 is formed integral with the rod 10 and has a stepped axial bore 15 in which is fitted a spring abutment 20, spring 21, valve 22, and seat 23, the whole being held in position by a snap ring 25. The pump has a valve controlled suction 8 and a port 16 connects the axial bore to the cylinder space and delivery 9. A packing strip 27 is fitted between the valve seat 23 and. the axial bore.
Patent GB-1366411-A (GB)
Title: Method of preparing high transition temperature superconducting materials
IPC: H01L39/12
Filed: 1972-03-30
Abstract: 1366411 Super-conducting alloys UNITED STATES ATOMIC ENERGY COMMISSION 30 March 1972 [26 April 1971] 15121/72 Headings C7A and C7D Super-conducting materials of the general composition Nb x  Al y  Ge 1-y  wherein x is 1À9 to 3À0 and y is 0À4 to 0À9 are produced by mixing powdered constituents to the required ratio, pressing the mixture to a plug and heating at 1450- 1800C. for at least 30 minutes. In a particularly preferred method, Fig. 1, finely divided niobium metal is mixed with a powdered NG-Al-Ge material prepared by arc-melting the individual constituent, and grinding, pressed and heated at 1550C. under helium. After cooling, the resulting material may be ground to powder again, repressed and heat-treated again. The materials are then annealed at, e.g. 740C. to provide a high transition temperature, which is not degraded by subsequent grinding or cold working. The invention is stated to be generally applicable also to any NG-Al-Ge system exhibiting transition temperatures above 19K and being comprised substantially of the beta-tungsten phase or mixtures thereof with the tetragonal sigma phase.
Patent GB-128918-A (GB)
Title: Improvements in or relating to Trap-nests for Poultry.
Inventor: OHRN ERLING
IPC: A01K31/16
Filed: 1919-06-16
Abstract: 128,918. Ohrn, E. June 28, 1918, [Convention date]. Nests.-A trap nest in which the fowl is free to enter a special pen after the egg is laid is provided with swing doors 1 leading to a chamber having a floor 2 which tilts as the fowl passes to the nest chamber 5, thus preventing the doors 1 opening inwards and closing the nest to other fowls. The egg rolls down the floor of the nest into a receptacle 15 on the end of a lever 6 which tilts and discharges the egg into a container 7. The tilting of the lever trips a catch 16 holding down the frame 3 on which the floor 2 is supported against the pressure of a rod 11 resting on a bellows 9 which is expanded by the pull of a spring 8. The release of the catch 16 permits the nest to take up the position shown in Fig. 3 in which the entrance is closed bv the floor 2 and frame 3. The fowl then can escape to the pen 14 resting on and comprising the bellows 9 in doing so, thus permitting the floor 2 to drop into its original position, and re-setting the catch 16. A bellows 13 cushions the movements of the lever 6. Il desired, a door leading to the enclosure 14 may be closed, thus converting the device into an ordinary trap neet.
Patent GB-1107667-A (GB)
Title: Device for applying adhesive to strips, particularly of leather
IPC: A43D25/18
Filed: 1966-04-05
Abstract: 1,107,667. Coating apparatus. A. BOCCA and M. PAGANI. 5 April, 1966 [14 April. 1965], No. 15155/66. Heading B2L. A device for applying adhesive material on a marginal portion of a leather strip prior to a folding operation comprises a pressure foot 1 adapted to press on said marginal portion and having a hole 2 extending therethrough to the lower surface thereof. an adhesive material supply pipe 6 which (in assembled position) extends through said hole to the lower surface of the pressure foot and a releasable clamp means for holding the supply pipe in position in the pressure foot. The supply pipe 6 has a projection 7 for engagement with a recess 8 in the pressure foot and an outwardly extending part 11 which co-operates with the lower end 10 of a spring loaded sliding rod 9 to form the clamping means. At its upper end the rod 9 has a knurled knob 13 with an inclined under surface 16 which co-operates with an inclined surface 14 on the foot 1 so that by rotation of the knob, the rod 9 can be held in a raised position to disengage the clamping means 10, 11.
Patent GB-1242943-A (GB)
Title: A process for thermally joining materials
Inventor: HELLER WILLIAM C JR
IPC: B29C53/36
Filed: 1969-03-22
Abstract: 1,242,943. Seaming non-metallic sheet material. W. C. HELLER JNR. 22 March, 1969, No. 15164/69. Heading B5K. Adjacent article parts 8, 10 of thermoplastic materials having relatively low dielectric loss properties are joined by introducing a normally solid agent 12 responsive to dielectric heating at the interface of the parts 8, 10, the agent having a property of bonding incompatibility with the thermoplastic materials, subjecting the agent 12 and the parts 8, 10 to a high frequency electric field whereby the agent 12 becomes heated dielectrically and softens the portion 20 of the parts adjacent the agent, by conduction, and causing the portions 20 to flow non-adhesively around the agent to join the parts 8, 10 together in areas 22. In one embodiment, Fig. 2, the agent 12 in filament form and which may be transparent, opaque or coloured is placed between two sheets 8, 10 of polyethylene, polypropylene or poly. styrene. Specified materials for the agent 12 are polymers and copolymers of vinyl chloride, vinyl fluoride, vinylidene chloride and vinylidene fluoride, polycarbonates, polyurethanes, polyacetals and cellulose derivatives. The overlapped sheets 8, 10 are positioned between bartype electrodes 14 energized by a power source 16, e.g. a vacuum tube oscillator. Pressure may be applied by the electrodes 14 which may be coated with polytetrafluoroethylene. Alternatively, the electrodes may wheel- or rollertype and may be shaped to the required shape of the finished product. After joining, cooling may be assisted by an air blast. The agent 12 or the sheets 8, 10 may be preheated prior to the joining operation.  In other embodiments, the agent 12 may be applied in flattened discontinuous form to form a longitudinal seam in a tube, Fig. 4A; the agent may be applied in granulated or powdered form or it may be applied in a paste or viscous form which subsequently hardens.
Patent GB-646885-A (GB)
Title: Improvements in or relating to bed pans
IPC: A61G9/00
Filed: 1948-06-04
Abstract: 646,885. Bed-pans. WAKEMAN, C. E. June 4, 1948, No. 15172. [Class 26] To relieve pressure on the spine of a user, a bed-pan has a resilient closure formed at its back end. In the form shown in Figs. 1 and 2, the closure 15 comprises a horizontal portion 16 with a reinforced head 18, and a vertical portion 17, forming continuations of the flat top 11 and end wall 14. respectively, of the pan 10. The edges of the closure may be bonded to the edges of the pan, or the closure may have recessed heads to fit over bent or beaded edges on the pan. The pan may be made of metal, plastic, or other rigid material, whilst the closure may be made of plastic or rubber, e.g. a resilient plastic closure may be united during moulding, to a pan of thermo-setting plastic. In the form shown in Fig. 7 the closure 28 tapers to a thin edge 29 to correspond with an end wall of the pan which slopes down to the bottom 26, and has an internal recess 30 forming part of the interior of the pan.
Patent GB-694963-A (GB)
Title: Improvements in and relating to rock drilling apparatus
IPC: E21B21/07
Filed: 1950-06-19
Abstract: 694,963. Percussive drills. HOLMAN BROS., Ltd., HOLMAN, A. T., ORAM, M., and JAMES, E. B. Dec. 27, 1950 [June 19, 1950], No. 15256/50. Class 124. A dust eductor system for dry drilling apparatus comprises a hollow drill steel, a drill having a passage aligned with the steel and passing straight through the drill, a hose connected to the back of the drill and delivering to a filtering unit, and a vacuum creating device to establish a partial vacuum throughout the system. As shown, a hollow steel 2 having a bit 1 is connected to a drill 3 which has a straight through passage in communication with a pipe 5 discharging into a filtering unit 7a, 7c, 7e, the parts 7a and 7c collecting the larger particles and a bag 7e the dust. An ejector may be incorporated in the drill or in the pipe 5 adjacent the drill, and may start operating before the drill. The drilling may be transferred from the filtering unit to a wagon and removed. In a modification, Fig. 3 (not shown), the bag 7e may be replaced by a pipe discharging some distance away from the drill. The drill bits, Figs. 7-14 (not shown), are arranged with holes through which the drillings may be withdrawn from the drill hole, each of the holes in the bit being of a diameter smaller than that of the hole in the hollow steel. Specifications 695,009 and 695,010 are referred to.
Patent GB-709465-A (GB)
Title: Improvements in or relating to the production of silica hydrosols
IPC: C01B33/143
Filed: 1952-06-18
Abstract: Substantially pure silica hydrosols having a high silica content are produced by a batch process which comprises making an intimate mixture of an alkali metal silicate and a quantity of cation exchange material in excess of that required to convert all the alkali metal silicate to silica hydrosol.  The amount of exchange material used is preferably such that only 60-80 per cent. of its capacity is utilized.  Before use the exchange material is treated with a dilute solution of a mineral acid and washed with water to a pH of 4.5-5.5. All the silicate solution may be added to the granular exchange material and the mixture stirred or agitated by blowing in a gas; alternatively the silicate solution may be added dropwise to a water slurry of the exchange material; mixing may also be effected by circulation in a vessel containing a draft tube.  The mixture of silicate solution and exchange material is preferably maintained at a pH (e.g. less than 4) below that at which rapid gelation of the hydrosol occurs; for this purpose hydrochoric, sulphuric, or nitric acid may be added to the mixture as described in Specification 709,466, or the water in which the exchange material is slurried may be acidified.  The hydrosol obtained may be passed through a stationary column of granular cation exchange material to remove a further amount of alkali metals ions; before this further treatment an acid (e.g. acetic, hydrochloric, nitric, sulphuric, or sulphurous) may be added to the sol to reduce the pH to 2-3.  After use the exchange material is washed with water, the wash liquor being used in a subsequent process, and is then regenerated, either in the same vessel or in a separate column, by treatment with acid.  Examples describe the treatment of sodium silicate solutions with "Amberlite" (Registered Trade Mark) exchange resins.  Hydrosols containing up to about 10 per cent silica and having alkali metal contents below about 0.1 per cent. on the dry basis may be obtained without concentration and without deposition of silica on the exchange material.  The sols may be converted to silica gel or used in the preparation of silica-alumina gel catalysts.  Specification 645,703 also is referred to.
Patent GB-1183603-A (GB)
Title: An Improved Aircraft Instrument Landing System
IPC: G01S19/11
Filed: 1967-04-04
Abstract: 1,183,603. Aerials; radio navigation. UNIVERSITY OF ADELAIDE, and E. O. WILLOUGHBY. 4 April, 1967 [6 April, 1966], No. 15391/67. Headings H4A and H4D. In an instrument landing system for aircraft, aerial systems for generating localizer and glide equisignal planes are positioned near the end of a runway, and the localizer system radiates away from said runway. The glide plane is regenerated from below at one or more points away from the aerodrome, and has a cross-slope, for example, of 1 in 10, with respect to the localizer plane. Said cross-slope is determined by the angle, measured in a plane perpendicular to the localizer plane, which the glide plane makes with a horizontal plane. As shown in Fig. 1, a pair of localizer aerials 1, 2 are disposed forward of a runway 3. These aerials may operate at a carrier frequency of 110 Mc/s. and each comprises an aperture having upper and lower wire mesh surfaces and provides horizontally polarized radiation (Figs. 3, 4, not shown). A glide plane aerial is disposed near the end of the runway 3 and consists of a double cheese type aerial, such as that shown in Fig. 6, operating at a carrier frequency of 5000 Mc/s. The cheese aerials 25, 26 are excited by probes 31, 32 and their apertures 27, 28 may extend into a horn comprising flares 40, 41, Fig. 8, which are provided at their outer ends with choke cavities: 45, 46. Modulation frequencies of 90 c/s. and 150 c/s. may be used, and the aerials of a pair may be switched sequentially at, for example, 10,000 c/s. The runway 3, Fig. 1, may be provided with marker beacon slot arrays 5 and a system of landing lights 7. The latter may be of infra-red type, aircraft then comprising suitable transducers. Glide path beacons may be provided in pairs, symmetrically placed about the localizer plane, when the intersection of the two glide planes upon the localizer plane defines the flight path. The localizer plane as well as the glide plane may be regenerated away from the aerodrome. In Fig. 2 is shown how the system may be used in difficult or mountainous terrain, a series of pairs of aerials 9 being placed along the approach line of the aircraft. A receiving aerial for fitting in the nose of an aircraft is also described (Figs. 10, 11, not shown). This comprises a forward facing open cavity with a rear reflector of parabolic form. Focused energy is transferred by a waveguide to a local oscillator and mixer behind the reflector.
Patent GB-311115-A (GB)
Title: Improvements in high speed gas compressors
IPC: F04B39/10
Filed: 1928-05-25
Abstract: 311,115. West & Co., Ltd., H. J., and Prestage, E. May 25, 1928. Valves, arrangement of; clearance, providing. -Clearance is provided in a high-speed sleeve valve gas compressor of the kind described in Specification 467/14 by a groove 12 cut in the false head. Packing ring 11 is provided in the head and rings 13 in the sleeve. The gas enters the cylinder through an annular chamber 2 and ports 5 in the sleeve valve, and is discharged through ports 6 and chamber 8.
Patent GB-846744-A (GB)
Title: Improvements in or relating to the production of semi-conductor devices
IPC: H01L21/00
Filed: 1957-05-15
Abstract: A foil used in the manufacture of semiconductor devices consists of an alloy comprising gold and antimony, the antimony constituting 0.2 to 5% (preferably 1%) by weight of the alloy.
Patent GB-908030-A (GB)
Title: Improvements in or relating to range-finders
IPC: G01S17/08
Filed: 1959-05-05
Abstract: 908,030. Photo-electric range-finders. MAGYAR OPTIKAI MUVEK. May 5, 1959 [May 5, 1958], No. 15452/59. Class 40 (7). In an optical pulse-echo range-finder the echo light pulse is applied to a photo-cell 9 to give a corresponding electrical pulse and a reference electrical pulse is derived from and variably delayed relative to the transmitted light pulse to bring the reference pulse into coincidence with the electrical echo pulse, the magnitude of said delay being indicative of the range of the reflecting object. As shown, recurrent light pulses produced by a light source 1 and rotating mirror 2 are projected on to a beam-splitting mirror 3 and one of the resultant beams is projected by means of a mirror 4 and optical system 6 on to the reflecting object 7, the resultant echo pulses being focused on to the photo-cell 9 by an optical system 8. The other beam from the beam splitter 3 is focused on to a photo-cell 11 and the resultant electrical pulses are applied through a calibrated variable electrical delay means 12 to a coincidence detector 10 together with the electrical echo pulses from the photocell 9. The output from the coincidence detector 10 is applied to a coincidence indicator 13, e.g. a galvanometer or cathode-ray tube, and the indicator display and setting of the delay means 12 may be recorded automatically by a camera, Fig. 2 (not shown). Alternatively the recurrent light pulses may be produced (1) by replacing the rotating mirror 2 by an oscillating mirror, Fig. 2 (not shown), or (2) by a cathoderay tube whose fluorescent screen is covered with a mask having a narrow aperture, the luminous spot on the screen being oscillated across the aperture. The electrical delay means 12 may be replaced by an optical delay means interposed between the mirror 5 and photo-cell 11, said optical delay means comprising two spaced plane mirrors mutually inclined at a small angle so that the beam travels in a zig-zag path between the two mirrors. The delay means may also comprise a plurelity of coarse and fine electrical and/or optical delay means, the fine delay being continuously variable and the coarse delay being variable in discrete steps. The directional optical transmitting and receiving systems 6 and 8 may be duplicated to allow the simultaneous measurement of the ranges of two spaced objects, the distance between the objects being determined by said ranges and the angle between the objects.