baber/WOPTO huggingface dataset:
Patent GB-567520-A (GB)
Title: Improvements relating to a reflecting appliance for providing visual aid
IPC: G02B23/08
Filed: 1944-08-22
Abstract: 567,520. Reflectors. PHILLIPS, W. J. Aug. 22, 1944, No. 15983. [Class 97 (i)] An appliance for enabling a person in a supine position to view objects at a considerable angle from the direct line of sight comprises two plane reflectors M, M<2> held above the viewer's eyes, with the line of intersection of their planes substantially horizontal, by means of an overhanging framework 8. The objects are seen as a result of successive reflections by M and M2. As shown, the reflectors are held by thumb nuts on screwed pins passing through slots in bars 5, which are pivotably mounted on the frame 8, so that the angle and distance between the reflectors can be adjusted, or they can be moved together. The frame 8 is telescopically carried by a standard 10 mounted on a wheeled base 1.
Patent GB-131198-A (GB)
Title: Improvements in connection with Filters for the Purification of Liquids.
Inventor: CANDY FRANK PULLEN
Filed: 1918-10-02
Abstract: 131,198. Candy, F. P. Oct. 2, 1918. Filters with loose filtering-materials.-In cleansing filters by means of a reverse flow of air and water, the air is expelled to the filter from an elevated receptacle by water which afterwards passes under gravity through the filter. Or connexions are made with one or more other filters so that air can be driven from them to the filter to be cleansed. Small tubes of special construction are used for evenly distributing the air in the filtering-medium. With the apparatus shown in Fig. 1, water from the filtered water discharge pipe 16 passes during the cleansing operation through a cock 10 and pipe 5 to a receptacle 4, driving air therefrom through a pipe 11 into the filter 1. When all air has left the receptacle 4, the water is passed from it to the filter through the pipe 5 and cock 14. A single receptacle 4 can be used in connexion with a number of filters. Fig. 3 shows the form of the collecting and distributing nozzles used. The nozzle is provided with a short tube 22 having one or more small orifices 23 or a slot, through which, during the cleansing, air passes into the filtering medium, the lower end of the tube 22 being submerged. The tube may be used without the conical nozzle shown, or separate air orifices may be provided in the false floor 24 of the filter. With filters having no false floor, the nozzles may be applied to a system of collecting conduits. According to the Provisional Specification, the nozzle tube instead of having an orifice may be cut away at the bottom at a slope.
Patent GB-1069205-A (GB)
Title: Radiant energy sensitive element
IPC: H03H9/12
Filed: 1964-04-17
Abstract: A luminescent or electro-luminescent X-ray sensitive device comprises a layer of intermixed photo-conductor and phosphor particles.  In one embodiment, a device producing an electric output comprises a layer 250-300 micron thick of mixed phosphor (sensitive to X-rays) and photo-conductive material (sensitive to the radiation emitted by the phosphor), bonded together in 20 volume per cent of an epoxy resin, the layer being deposited on a reflective aluminium plate electrode and carrying a vapour-deposited aluminium electrode, reflective to the phosphor emission but transparent to X-rays; variations in resistance of the device upon exposure to X-rays are detected by applying a D.C. potential across the electrodes. The phosphor may be Zn, CdS: Ag, and the photo-conductor CdS: Cu, Cl of 15-20 micron particle diameter  In a second embodiment, a similar device includes also an electro-luminescent layer to give an optical output.  The device comprises (a) an X-ray transparent, light reflective aluminium electrode, (b) the mixed phosphor-photo-conductor layer, (c) a light-reflective dielectric layer, e.g. of titanium dioxide or barium titanate in an epoxy binder, 10-20 micron thick (this layer may also contain an X-ray fluorescent phosphor), (d) a 5-10 micron black paint layer to prevent optical feed-back, (e) a reflective dielectric layer like layer (c), (f) an electro-luminescent layer, e.g. ZnS: Cu, Al, in an epoxy binder, 30-40 micron thick, (g) a transparent electrode, e.g. of tin oxide, and (h) a glass support.
Patent GB-488452-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L7/02
Filed: 1937-06-10
Abstract: 488,452. Cleaning floors. EISENLOHR, F. June 10, 1937, No. 16154. Convention date, Dec. 16, 1936. [Class 138 (i)] [Also in Group XXVIII] A vacuum cleaner can have'attached to it either an ordinary floor cleaning suction nozzle or a floor polishing device. The casing 2 contains an electric motor and fan, the shaft of which engages rubber rings 26 on two brushes contained in a polishing attachment 1. This carries threaded spigots 36 which enter sleeves turned by the finger pieces 16 to secure it to the casing 2. The handle 29 is then turned to allow springs 30, 35 to press the rings 26 against the motor shaft.
Patent GB-598323-A (GB)
Title: Improvements in or relating to the polymerisation of olefins
IPC: C08F210/00
Filed: 1945-06-25
Abstract: Normal C3 to C10 olefins alone or with minor proportions of C4 to C14 polyolefins are polymerized at a temperature below -10 DEG  C. using a Friedel-Crafts halide catalyst dissolved in an inert liquid in a concentration of at least 1 per cent and in an amount of at least 25 per cent of the olefins.  There are specified as olefins, propylene, butene-1, butene-2, the n-amylenes and the n-hexylenes; as polyolefins, butadiene, isoprene, piperylene, dimethyl butadiene, dimethallyl and myrcene; as catalysts, aluminium chloride, bromide and iodide, titanium and uranium chlorides, boron trifluoride and zirconium tetrachloride dissolved in methyl, ethyl or propyl chlorides, carbon disulphide, chloroform, ethylene dichloride or vinyl chloride; as diluent-refrigerant, liquid methane, ethane, propane, butane or solid carbon dioxide.  The copolymers are soluble in hydrocarbons and may be added to coating compositions or to lubricants to increase viscosity.  They may be chlorinated in solution in carbon tetrachloride, or vulcanized with sulphur monochloride; sulphur, especially with addition of tetramethyl thiuram disulphide; p - quinone dioxime, especially with added minium; dinitroso benzene or dinitrosocymene.  Zinc oxide, stearic acid and carbon black may be added.
Patent GB-123116-A (GB)
Title: Improvements in and in the Process for the Manufacture of Refractory Goods.
Inventor: MOTTRAM GEORGE WILLIAM
IPC: C04B35/14
Filed: 1917-11-07
Abstract: 123,116. Mottram, G. W. Nov. 7, 1917. Refractory substances.-Refractory bricks and the like are made by first dry grinding the base material and saturating it with water, then wet grinding the binder or flux to the consistency of a slip varying in fineness from 30-200 meshes to the linear inch with 1-4 times its weight of the base and mixing the product with the remainder of the saturated base material. After the mixture has been allowed to stiffen and mature and excess of water is removed, it is pressed, dried, and burnt at a sintering temperature. As base material, silica, fireclay, and other old or new refractory material may be employed ground to a fineness of 8-40 meshes to the linear inch and the clay binding-material may be made more plastic by the addition of peat water or the slime deposited from the effluent from sewage purification or the refuse liquid from tanneries. Lime or other basic oxide or iron oxide or salts to the extent of 1.5 to 4 per cent. may also be added with or without 5 to 15 per cent. of fire-clay.
Patent GB-477813-A (GB)
Title: Method of and apparatus for treating extruded metals
IPC: B21C29/00
Filed: 1937-06-11
Abstract: 477,813. Squirting. STANDARD TELEPHONES & CABLES, Ltd. June 11, 1937,. No. 16276. Convention date, Nov. 7, 1936. Addition to 433,553. [Class 83 (iv)] Working at specified temperatures.-A modification of the extrusion process described in the parent Specification comprises directing the steam, against the extruded' product in a number of separate streams individually controllable by the extruded product, which moves laterally to close the ports on a side which becomes excessively cool, and to open those on the hotter side. Steam is delivered to a circumferential channel 29, passages 41, 43, and arcuate chambers 21 each covering a substantial portion of one quadrant of the die 14 to control the temperature of thatportion of the die, and passes on to theextrudingproduct through passages 31. A lead-antimony alloy is extruded at a temperature of 375-400‹ F. and steam is supplied at 215‹ F. If one side of the product 17 becomes excessively cold, the excessive extrusion on the opposite side together with the stiffening of the material' on the cool side tend to deflect the product laterally to close the outlets for steam, wholly or partially, at the cool side, and to open them further at the opposite side; thus restoring. equalization of temperature.
Patent GB-629036-A (GB)
Title: Improvements in centrifugal apparatus for the manufacture of roofing tiles or the like
IPC: B28B1/20
Filed: 1947-06-20
Abstract: 629,036. Centrifugal moulding-machines for making tiles &c. RAFFERTY, G. H. June 20, 1947, No. 16306. Convention date, June 26, 1946. [Class 87 (ii)] A number of segmental mould carriers 14 (as shown, six) are removably fitted between spokes 12 extending between the rim 8 and the hub 11 of a rotatable cylindrical frame. Each mould carrier comprises a base 20, two sides 19 hinged at 21 to the base, and two ends 18. Each carrier accommodates five moulds, and each mould moulds four tiles. Each mould includes a plate 32 which forms the upper face of the tile and a plate 33 which forms the lower face, these plates being spaced apart by blocks 51 removably secured to the base 20. The eight inner plates (Fig. 3) are in four pairs, each pair comprising a plate 32 secured as by welding to a plate 33. Each plate 33 has two raised parts 37, 38 joined by a channel 39 through which passes a pin 40 which forms a hole for receiving a tie-wire for attaching the tile to a roof frame. The pins 4C are attached to a bar 41 which slides in guides 42 secured to the plate 33. The pins are inserted into the channel 39 and removed therefrom b) manual operation of levers 45 fulcrummed on the brackets. The inner ends of the moulds are pressed together by cams 60 on a ratchet-restrained shaft 58. Plates 67 and spacing strips 47 prevent entry of concrete into the spaces between the moulds. The mould carrier is held together by nuts and bolts 24, 27 and straps 26. Rollers 29 on the carriers run on rails 13, 31 on the inside of the frame 8.
Patent GB-165326-A (GB)
Title: An improved construction of bolt ring
IPC: A44C11/02
Filed: 1920-06-17
Abstract: 165,326. Onions, C. E., and Underwood, C. E. June 17, 1920. Gated rings. - A bolt-ring a for attaching jewellery chains and the like to clothing, has a member b formed with a pointed end b<2> opposite a sliding spring bolt c provided with a knob c<2> guided in a slot a<2>. An attachment ring e is fitted to any part of the bolt ring. The member b is made from a wire and soldered into the ring a.
Patent GB-885308-A (GB)
Title: Switching circuit
IPC: H01H47/18
Filed: 1960-05-09
Abstract: 885,308. Transistor switching circuits. COLLINS RADIO CO. May 9, 1960 [Aug. 3, 1959], No. 16349/60. Class 40(6). In a switching circuit, a capacitor is charged through an impedance to control the switching-on delay of a first electronic device and discharged through a resistor and a second electronic device to control the switching-off delay of the first device. In the absence of a control signal, transistor 28 is non-conducting so that a capacitor 19 charges through a resistor 18. The current through the transistor accordingly rises and eventually a relay 17 will operate. A control signal from source 38 will render a transistor 28 conductive so that the capacitor discharges through resistor 21, transistor 28 and resistor 31. The rate of discharge is controlled mainly by resistor 31 but the current through resistor 21 develops a voltage which tends to bias the transistor 10 in the non-conducting direction so that the time that elapses before relay releases depends both on resistor 21 and resistor 31.
Patent GB-475147-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F31/30
Filed: 1936-06-12
Abstract: 475,147. Printing-machines. BAILEY, J. T. P., and THRISSELL ENGINEERING CO., Ltd. June 12, 1936, No. 16458. [Class 100 (ii)] Inking-apparatus ; tripping - arrangements.- In apparatus of the kind in which at least one movable element, e.g. a transfer roller, is movable in the ink-duct for agitating the ink, a driving- member is connected with the movable element by two driving-trains, one of which includes the impression roller and can be disconnected from the driving - member, the arrangement being such that the movable element is continuously rotated. An impression cylinder 4 co-operates with a number of printing-elements each comprising a die roller 8, an ink-duct, and two duct rollers 6, 7. A continuously-rotated sprocketwheel 9 drives a sprocketwheel 14 connected by a free-wheel device to a spindle 15 which, by connections 16-23 drives the rollers 6, 7. The wheel 9 carries a clutch element 36 adapted to cooperate with an element 37 under the control of a spring 40 and an operating-handle 41. When the element 37 is moved into driving- connection with the element 36, the cylinder 4 is operated together with a train of gearing 28, 30-35 to rotate the die roller 8 and rollers 6, 7. The gear train 30-35 actuates the rollers 6-8 twice as quickly as the gear train 14-23, and the free-wheel device 14 permits the necessary relative movement of the spindle 15. The gear-wheel 35 is also connected to the shaft 22 of the roller 7 by a free-wheel device to prevent motion transmitted to the roller by the gear train 14-23 from actuating the cylinder 4. The operating-handle 41 is connected by a link 62 to an arm 61 secured to a spindle concentric with the shaft of the cylinder 4 and carrying members 58, 59 connected to cranks 56, 54 adapted to move the die roller 8 and ink-duct towards or away from the surface of the cylinder 4.
Patent GB-1034428-A (GB)
Title: Storage cabinet for plans, drawings and the like in sheet form
Inventor: KNIGHT PETER DAVID
IPC: B42F15/06
Filed: 1964-04-21
Abstract: 1,034,428. Filing papers. ADMEL INTERNATIONAL Ltd. March 18, 1965 [April 21, 1964], No. 16475/64. Heading B6E. A cabinet for the suspension filing of drawings or the like comprises a number of bars 5 ... 9, Fig. 1, with staggered filing pins 10, 11 thereon, the bar 9 being fixed and the remainder carried by slidable members 20 ... 23 so that compartments A ... D formed by the bars can be opened to insert, remove or inspect drawings. The members 20 ... 23 have wheels 25, Fig. 2 (not shown), running on guides 26 and are held in the closed position by latches 30 on each member engaging pins 33 on the adjacent member. The latches 30 can be selectively released for opening a particular compartment and for this purpose a shaft 40 can be rotated by a knob 44 so as to position one of a number of axially and angularly displaced projections 41, 42 on the shaft adjacent to a shoulder 34 on the latch 30 to be released. The shaft 40 is slidable by means of a push button 50 in the knob 44 against the action of a spring 51, and the axial movement of the shaft causes the selected latch 30 to be released by the corresponding projection 41 &c. Each carrier member 20 of the first bar is attached to an endless cable, chain or the like passing over pulleys or sprockets 61, 62 on fixed axes, the arrangement ensuring parallel movement without jamming of the carriers 20 and bar 5 and also of the other carriers since they are latched to carriers 20. A coiled spring on the shaft 63 of the pulleys 61 causes bar 5 and bars latched thereto to move towards opening positions when a selected latch is released. Spring-ball detents 74, Fig. 1, each engage recess 71 in the side of a member 20 to stop such movement with the pins 10, 11 of the compartment being opened still overlapping. To complete the opening, a pull has to be exerted on the bar 5.
Patent GB-422192-A (GB)
Title: Improvements in or relating to the production of chlorinated rubber products and apparatus therefor
IPC: C08C19/12
Filed: 1933-06-08
Abstract: 422,192. Chlorinated rubber. SPENCER, W. D., 152, Princes Road, Liverpool, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. June 8, 1933, No. 16497. Addition to 402,454. [Class 70] Apparatus for producing chlori. nated rubber in accordance with the process described in the parent Specifica. tion comprises means for injecting a thin stream of chlorinated rubber solution into a moving volume of liquid means for main taining said liquid above the boiling point of the solvent, means for collecting the solid product and means for condensing the solvent vapour and collecting the liquid solvents. In the form shown, an apparatus of lead, lead-lined iron, bronze or earthenware comprises a tower 1 through which hot water is circulated upwardly by a pump 2. Steam is blown in through a pipe 5, and the chlorinated rubber solution is pumped through the fine jet 6 directly or from a pressure vessel after clarification. Several jets may be used. Steam and vaporized carbon tetrachloride are drawn off to the condenser 8, which is provided with a jet condenser 21, the liquids then passing to a separator 9. The circulating water carries the solid chlorinated rubber into a collecting basket 15, whence the water passes back to the pump. For continuous working, a second basket with suitable change-over connections is provided, one basket being used to collect the solid while the other is emptied. In another form an open strainer is used instead of the basket. Specification 418,069 is referred to.
Patent GB-873864-A (GB)
Title: Process for the polymerisation of olefin oxides
IPC: C08G65/26
Filed: 1959-05-14
Abstract: Olefin oxides containing up to 4 carbon atoms in the molecule are polymerized to solid products by heating with 1%-6% by weight of a catalyst comprising a stannous salt of an aliphatic mono-or poly-carboxylic acid having 2-30 carbon atoms or of an aromatic mono- or di-carboxylic acid having up to 3 aromatic rings, at a temperature of 30 DEG -150 DEG C.  Propylene oxide is the preferred monomer; also specified are ethylene oxide, epichlorhydrin and isobutylene oxide, and these compounds as well as 1, 2- and 2, 3- epoxybutane and styrene oxide may be copolymerized with propylene oxide.  Suitable catalysts are the stannous salts of naphthoic, benzoic, naphthalic, phthalic, acetic, propionic, butyric, capric, stearic, oleic, caproic, caprylic, lauric, palmitic, myristic, octoic, acrylic, crotonic, oxalic, malonic, pimelic, maleic, citric and tricarballylic acids.  Inert, non-aqueous media may be employed, e.g. diethyl and di-isopropyl ethers, petroleum ether, benzene and n-hexane.  The impure polymers may be dissolved in hot acetone and precipitated or crystallized by cooling, and the major portion of the catalyst may be removed by adding a hydrohalide acid before crystallization. The products may have molecular weights above 100,000, melting points above 50 DEG C. and specific gravities of 1,03-1,05.  Uses: mouldings, films, fibres, coatings.  Specification 765,054 and U.S.A. Specification 2,706,182 are referred to.
Patent GB-233560-A (GB)
Title: Improvements in or relating to building blocks and the like
IPC: E04B2/42
Filed: 1924-07-10
Abstract: 233,560. Pitcher, L. A. July 10, 1924. Building blocks, special shapes of.-Building blocks are formed with a single vertical rectangular cavity 3, Fig. 1, a rectangular groove 5 in each end face, and semi-circular grooves 4 in the upper and lower faces. Corner blocks of L-shape and having corresponding grooves and cavities may be employed, or blocks for this purpose may have a rectangular cavity 5 in one end face and a semi-circular groove 4a provided in the upper and lower faces at rightangles to the grooves 4, as shown in Fig. 4. With such blocks, a wall is obtained having a series of vertical and horizontal communicating passages.
Patent GB-219013-A (GB)
Title: Improvements in firing mechanisms for automatic fire-arms
IPC: F41A19/33
Filed: 1924-07-10
Abstract: 219,013. Soc. Anon. des Etablissements Hotchkiss et Cie. July 11, 1923. [Convention date]. Machine guns.- Firing mechanism for automatic guns. adjustable for singleshot and continuous firing and for safety, comprises a trigger 17, a sear 4, a lever 9 pivoted to the trigger at one end and acting on the sear at the other, a single spring 7 connecting the sear and the lever and acting to return all three parts, and a controlling device comprising a rotatable bolt 18 adapted to engage an inclined surface 14 on the lever and formed with a flat portion and a projection 21, the bolt being rotatable into three positions, corresponding to continuous firing, as shown, single shot firing and safety.
Patent GB-164965-A (GB)
Title: Improvements in or relating to electric cables
IPC: G01M3/18
Filed: 1920-06-19
Abstract: 164,965. Lee, L. R. June 19, 1920. Cut-out arrangements.-The galvanic action set up by the penetration of moisture into a cable is utilized to cause a current to flow over conductors in the cable so as to actuate a cut-out relay. The cable has auxiliary conductors 5, 6 of materials differing from each other or from the lead sheath 8 the conductors and sheath being separated by hygroscopic insulation 7 such as paper or cotton. The conductors 5, 6 may be wound in a single layer or in concentric layers. Specification 22355/12, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-200092-A (GB)
Title: Improvements in automatic recording devices for liquids
IPC: B67D7/16
Filed: 1923-06-27
Abstract: 200,092. Soc. Hardoll. June 27, 1922, [Convention date]. Addition to 194,713. liquid-meters.-The meter described in the parent Specification is modified by the provision of a pressure-actuated piston 2 for operating a balanced cylindrical slide valve 3 which controls the supply to and discharge from the measuring chambers 8, 9. The piston 2 and valve 3 are connected to levers 11, 14 connected by springs 17, and the lever 14 carries the hammer 19 of a bell 20. As a chamber is being filled, the expelled air passes to the other chamber through pipes 28, 26, 27. the communication being closed , when the chamber is completely filler by valves or floats 31, the increasing pressure then serving to actuate the piston 2. The pipe 26 is provided with an air admission valve 29. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a statement that the slide valve 3 may be replaced by a four-way valve, and that the floats 31 may be dispensed with, if the air pipes are of small section. This subject-matter does not appear in the -Specification as accepted.