baber/WOPTO huggingface dataset:
Patent GB-1182081-A (GB)
Title: Preparation of 2-Aryloxyethyl Esters
IPC: C07D265/06
Filed: 1968-04-26
Abstract: 1,182,081. Preparation of 2-aryloxyethyl esters. DYNAMIT NOBEL A.G. 26 April, 1968 [27 April, 1967], No. 20013/68. Heading C2C. The preparation of 2-aryloxyethyl esters of aliphatic, cycloaliphatic or aromatic carboxylic acids comprises reacting an aryl ester of such an acid with ethylene carbonate at 100 to 200 C. in the presence of an alkali or alkaline earth metal halide, hydroxide or thiocyanate or organic base as catalyst. In examples, the preparation of phenoxyethyl acetate, laurate, stearate, benzoate, hexahydrobenzoate and ptoluate; di-(m-cresyloxyethyl)-cyclohexanedicarboxylate; m-cresyloxyethyl benzoate; diphenoxyethyl iso- or tere-phthalate; di-(mcresyloxyethyl) - isophthalate; di - (p - chlorophenoxyethyl) - terephthalate and monomethylphenoxyethyl terephthalate is described.
Patent GB-1282698-A (GB)
Title: Apparatus for identifying or writing magnetically recorded data
IPC: G06K7/016
Filed: 1971-04-19
Abstract: 1282698 Checking tickets; verifying recorded data COMPAGNIE GENERALE D'AUTOMATISME 19 April 1971 [22 Jan 1970] 20014/71 Headings G4M and G4T Apparatus for identifying or writing magnetically recorded data on a ticket comprises a first arrangement providing scanning motion beween a magnetic head and a ticket support and a second arrangement synchronized with the first and providing scanning motion between a reading system and a record of the data to be identified or written, whereby registration of the scanning motions is maintained. In the embodiment shown the reading system comprises photosensitive element 7 and a light source (8) (Fig. 2, not shown) arranged on the sliding support 5 so that the element is illuminated by the lightsource when a perforation 3 in the record 2 is located therebetween. In the writing mode of operation the signals from element 7 are applied to the magnetic head 1 through circuit 9 so as to write the data on a magnetic zone 11 of the ticket. In the identifying mode signals representative of the data on the ticket are passed to the circuit 9 which compares them with the signals from the element 7. The circuit preferably has two channels and is selectively operable either to drive the head 1 or act as a comparator. At the end of its travel the support 5 contacts a leg of a pivoted hammer to print visible data on the ticket. The record 2 may be replaced with a series of apertured slides (31) (Figs. 5, 6, not shown) the positions of which are adjustable by means of a rotor (34) having cams (35), (36). In another embodiment (Figs. 3, 4, not shown) the ticket support comprises a roller (25) that carries the record in the form of a perforated flange (22). In this embodiment the reading system (27) and the magnetic head (21) are fixed within a housing of the apparatus.
Patent GB-1043555-A (GB)
Title: Apparatus for generating a unidirectional voltage
IPC: H02K11/04
Filed: 1963-05-20
Abstract: 1,043,555. Cooling semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. May 20, 1963 [May 18, 1962], No. 20059/63. Heading H1K. [Also in Division H2] A number of semi-conductor rectifiers are mounted on a support secured to the outside wall of the end cover of an A.C. generator. The rectifiers are cooled by air passing out of holes in the machine end shield and flowing over the rectifier casings.
Patent GB-1350175-A (GB)
Title: Solvent extraction process for producing puo sols
IPC: C01G56/00
Filed: 1972-05-01
Abstract: 1350175 Plutonia sols UNITED STATES ATOMIC ENERGY COMMISSION 1 May 1972 [2 June 1971] 20083/72 Heading G6R A plutonia sol is prepared by mixing a seed plutonia sol with an aqueous solution of plutonium nitrate, extracting nitrate from the mixture by means of an immiscible alcohol or amine, drying the sol to a solid, heating the solid at 180-240 C. to effect denitration and crystallite growth, and then dispersing the product in water to form a low nitrate sol having an average crystallite size in the range 30-100 angstroms. A first portion of plutonium nitrate solution may be contacted with the organic solvent to remove nitrate ions and form a sol, then a second portion of plutonium nitrate solution added to the sol while continuing the extraction with the solvent, and increments of nitrate solution added until all the solution has been converted into a sol. The plutonia sol may be mixed with urania sol and converted into dense oxide microspheres.
Patent GB-723752-A (GB)
Title: Automatic door stop
IPC: E05C19/00
Filed: 1952-08-12
Abstract: 723,752. Door holders. CUNNINGHAM, R. N. July 10, 1953 [Aug. 12, 1952], No. 20299/52. Class 65 (1) A door holder comprises a base 1, a hinged strut 2, and a spring 3 which constantly urges the strut away from its floor-engaging position The base is fitted to the bottom of the door to allow clearance between the floor and the strut in its raised position. The strut is moved strut may be tipped with into engage-' ment with the floor by contact with a person's foot, when thedoor is opened, and is stated to hold the door until the foot is removed. The rubber or other non-slip material.
Patent GB-1535153-A (GB)
Title: Liquid-level supervisory apparatus
IPC: G01F23/24
Filed: 1977-05-13
Abstract: 1535153 Liquid level monitor JAEGER 13 May 1977 [6 Oct 1976] 20304/77 Heading G1N A liquid level supervisory apparatus includes a resistance sensor element 1 having a positive temperature coefficient of resistance and disposed in use so that a liquid immerses the element to an extent dependent upon the level to be supervised and energized from a constant direct current source 3. The element is connected to a difference circuit 4 providing a voltage V-U where V is a reference potential and U is the potential across the terminals of the element. At the initial instant the element potential is U o  and the difference V-U o  is applied to a capacitor of an RC circuit 5 which discharges according to a given law indicated by the line # in Figure 4a. The curves X, α in this Figure represent the voltage V-U for an element wholly immersed in liquid, air respectively. The heating period t of the element is set by the timer 2 to be intermediate that t  1  at which the line # intersects curve X and that t 2  at which it intersects the curve α. After a time t therefore from initial energization the comparator 6 determines from the voltages V-U and V-U# the position of the element and energizes an alarm 7 or not accordingly. In an alternative embodiment Fig. 5 (not shown), the initial potential dropped across the element at switch-on is stored in a memory (8). A difference circuit (9) measures continuously the difference between the voltage Ut across the element and the stored potential U o  and this difference is compared in a comparator (10) with n predetermined voltages corresponding to different levels of immersion of the sensor element. If the difference equals one of these voltages a corresponding indicating and/or alarm means (11 1 -11 n ) is actuated. In a third embodiment, Figs. 7 and 8 (not shown), a first counter (14) receives pulses from a clock (13) and its count is converted to an analog voltage in D-A converter (15) feeding one input of a comparator (16) of which the other input receives the voltage across the sensor element. At turn-on the counter counts until the two comparator inputs are equal when it signals a command circuit (17) to stop the first counter which stores a count representing the initial voltage U o  across the element. After a given interval, sufficient for the sensor voltage to stabilize at a voltage representing the liquid level obtaining, the command circuit enables both counters (14, 18). The first counter now counts until the comparator inputs are equal when both counters are stopped. The second counter now has a count representing the charge of voltage across the sensor and therefore representing the liquid level.
Patent GB-279196-A (GB)
Title: Improvements in and relating to ships' telegraphs
IPC: B63H21/22
Filed: 1926-08-18
Abstract: 279,196. Robinson & Co., Ltd., A., and Lambert, E. A. Aug. 18, 1926. Order apparatus.-The transmitter of an electrical or mechanical order telegraph system has a stop which normally limits the range of orders that can be signalled but may be displaced to allow additional orders to be transmitted. The transmitter hand wheel 3, Fig. 1, operates a shaft 2 which, through gearing of the Geneva, stop type, rotates a pointer 4a over a dial. A nut 11 rides on a threaded portion of the shaft 2, rotation of the nut being prevented by an arm 12 co-operating with a slotted member 13. The range of movement is limited by stops 6, 7 the stop 6 being fixed and the stop 7 being slidable on the shaft. 2 under the control of a pin 15 which engages an annular channel 14 in the stop and is eccentrically disposed relatively to an operating shaft 16. Rotation of the stop 7 is prevented by a slot 7a engaging a pin 7b on the shaft 2. Normally the stop 7 occupies its lowermost position but when it is desired to extend the range of orders the shaft 16 is rotated to raise the stop. In a modification the stop 7 may be raised by a sleeve which surrounds the shaft 2 and screws into the casing 1. The pointer 4a is operated through reducing gearing comprising bevel wheels 8, 10, the wheel 8 having a pin 8a which is adapted to engage successively slots 10a, Fig. 6, to rotate the wheel 10 intermittently. The bevelled portion 8c of the wheel 8 slidably engages the concave bays 10b during the stationary periods of the wheel 10. In order to prevent seizure between the surfaces of the nut 11 and stop 7, a projection 18a, Fig. 5, on the nut engages a shoulder 19 on the stop to provide a clearance.
Patent GB-598330-A (GB)
Title: Improvements in or relating to optical sheets or flexible reflex light reflecting sheets, and reflex light reflectors including the same
IPC: G02B5/128
Filed: 1945-08-09
Abstract: 598,330. Ornamenting. MINNESOTA MINING & MANUFACTURING CO. Aug. 9, 1945, No. 20413. Convention date, March 2. [Class 93] [Also in Groups VIII, XVIII and XX] A reflex reflector comprises a transparent sheet in which are embedded transparent spheres, the rear of the sheet being attachable to or forming a reflector, which may contact with or be spaced from the spheres, the spheres being covered at the front by a transparent covering having a flat front surface, and the refractive index of the spheres being at least 1.15 times that of the covering. The sheet may be flexible. Fig. 1 shows the spheres 13, which may be of glass, held in a binder layer 12 and a spacing film 11 which may be on a reflecting back 10. A solid transparent covering 14 having a flat front surface is provided. The reflector 10 may be rigid or flexible of cloth, paper or sheet metal or may comprise a reflecting coating on the film 11 deposited electrically or by spraying; it may comprise a further layer of binder material and pigment such as titanium dioxide or certain areas of the film 11 may be made reflecting by printing a design, the remaining areas being transparent. One or other or both the layers 11, 14 may be coloured as may the spheres. The reflector may be formed by successively depositing the layers on paper coated with ureaformaldehyde resin and from which the final sheet is stripped. A flexible reflector layer 10 comprising titanium dioxide pigment, N-butyl methacrylate polymer and iso-butyl methacrylate polymer with xylol as solvent is first deposited followed by a spacing layer 12 of N- butyl methacrylate polymer followed after drying by a further layer 12 of this polymer in which the glass beads are embedded. The final covering 14 comprises a mixture of N- and isobutyl methacrylate polymers. The layers may be deposited on the paper in the reverse order. A thermo- or pressure-sensitive adhesive may be provided on the film 11 instead of the reflecting back so that the flexible sheet, which may be stored in roll form, can be attached as desired. A suitable adhesive for laminating the sheet to aluminium foil comprises methyl acrylate and isobutyl acrylate (both monomers), diamylethylene dimaleate, benzoyl peroxide and emyl acetate. In the modification shown in Fig. 6 an opaque or translucent coloured layer 35 is provided, and Fig. 5 shows the spheres immersed directly in the reflecting layer 28 described above. Each sphere may be coated with a uniform layer of the same material as that comprising to layer 30 before being embedded in the reflecting layer 28. The sheet may be used for road traffic signs, advertisement posters or be attached to clothing and handbags for decoration and as warnings at night.
Patent GB-1514493-A (GB)
Title: Radial pneumatic tyres
IPC: B60C9/20
Filed: 1975-05-14
Abstract: 1514493 Crown reinforcement in radial tyre MICHELIN & CIE 14 May 1975 [3 Oct 1974] 20422/75 Addition to 1406686 Heading B7C A radial pneumatic tyre has a crown reinforcement comprising ply of helically wound metallic (e.g. steel) cords, at least one margin of the ply being folded over radially, inwardly, and the ply being of one type (S or Z) and its cords being of the other type (Z or S). S and Z types of cord and ply are defined in Spec. The reinforcement may comprise a non-folded ply, and there may be a plurality of plies with folded over margins.
Patent GB-256059-A (GB)
Title: The manufacture and production of intermediates of the benzanthrone series
IPC: C09B3/06
Filed: 1925-08-14
Abstract: 256,059. Johnson, J. Y., (Badische Anilin & Soda Fabrik and Farbwerke vorm. Meister, Lucius, & Br³ning). Aug. 14, 1925. Samples furnished. Benzanthronyl mercaptans, sulphides, and disulphides are obtained by acting on halogen., nitro-, or halogen-nitro-benzanthrones, or derivatives thereof other than methyl derivatives, with sulphur or certain sulphur compounds; in the case of halogen benzanthrones, inorganic sulphides, or arylmercaptans, or benzanthrone mercaptans are used, while for reaction with nitrobenzanthrones sulphur or benzanthrone mercaptans are employed. A diluent may be present. Benzanthronyl-disulphides or mercaptans can be converted into benzanthronyl-sulphide by heating with copper or other agent which will take up sulphur, or, in the case of the mercaptans, by simply heating alone or with a diluent. According to examples the following compounds are obtained :-Bz1-benzanthronyl mercaptan from brombenzanthrone (Specification 20837/06, [Class 2, Acids and salts, Organic &c.]), and sodium sulphide; Bz1-benzanthronyl sulphide from brombenzanthrone and sodium polysulphide, or from Bz1-benzanthronyl mercaptan sodium salt and Bz1-brom- or Bz1-nitro-benzanthrone, in the latter case in presence of sodium bisulphite; a mixture of Bz1-benzanthronyl mercaptan and sulphide from Bz1-nitrobenzanthrone and sulphur in trichlorbenzene, the two products being separated by extracting the mercaptan with sodium sulphide solution from which it is reprecipitated as such by addition of salt or as the corresponding disulphide with a current of air; 2- or Bz1-benzan throne-thio-p-cresylether from 2- or Bz1-chlorbenzanthrone and p-thiocresol; Bz1-benzanthronyl sulphide by boiling Bz1-benzanthonyl disulphide with copper bronze and naphthalene or with phenol or an arylamine, or by heating Bz1-benzanthronyl mercaptan to 300‹ C. in absence of air.
Patent GB-205893-A (GB)
Title: An improved bearing for the spindles of spinning, doubling and like machines
IPC: D01H7/04
Filed: 1922-07-27
Abstract: 205,893. Kay, H. July 27, 1922. Combined bolster and footstep bearings for the spindles of spinning, doubling and like machines. The inner tube 2 and the outer sleeve 3 are so formed that an annular tapering space is provided between the upper boss 2<c> of the tube and the sleeve, forming an oil cushion. As shown, the boss 2<c> of the tube is conical, being larger at the top, and fits within a cylindrical part of the sleeve 3, but in a modification the boss is cylindrical and fits within a conical part of the sleeve. Oil working up the spindle is led by grooves o<1> formed in the boss 2<c> and by ducts o<2>, o<3> to the contracting parts. The lower end of the tube 2 is of rectangular or other shape in cross-section to prevent rotation of the tube. Alternatively, a stud 3<a>, Fig. 4, may be employed.
Patent GB-931631-A (GB)
Title: Brake element having metal fiber reinforcing
IPC: F16D69/02
Filed: 1961-06-07
Abstract: A sintered friction material is formed by sintering a mixture of powdered metal and/or ceramic and 1-35% by volume of sheared metal fibres which have a melting point above the sintering temperature. The preferred mixture comprises 12-99% by volume powdered metal and 0-65% by volume non-metallic materials.  The basic material consists by weight of 50% Cu, 5% Mo, 5% Fe, 1% "Monel" (Trade Mark), 16% mullite, 13% graphite and 10% sheared fibres such as Ni, Mo, stainless or carbon steel.  The mixture is compacted at 40,000 p.s.i., sintered at 1800 DEG  F. in a reducing atmosphere, cooled and then coined at 100,000 p.s.i.  Examples of other friction materials containing Cu, Mo, Sn, mullite, graphite, Sb, SiO2 and steel fibres are also included.  Heat-resistant ceramics containing MgO, BeO or ThO2 with Mo or steel sheared fibres are also produced by compacting and sintering in hydrogen at 2200 DEG  F.ALSO:A sintered friction material comprises a sintered mixture of powdered metal and/or ceramic and 1%-35% by volume of sheared metal fibres which have a melting point above the sintering temperature.  The preferred mixture comprises 12%-99% by volume of powdered metal and 05-65% by volume non-metallic materials.  The basic composition consists by weight of 50% Cu, 5% Mo, 5% Fe, 1% "Monel" (Registered Trade Mark) 16% mullite, 13% graphite and 10% sheared fibres such as Ni, Mo, stainless or carbon steel.  The mixture is compacted at 40,000 p.s.i. sintered at 1800 DEG F. in a reducing atmosphere and coined at 100,000 p.s.i. Examples of other friction materials containing, Cu, Mo, Sn, mullite, graphite, S6, SiO2 and steel fibres are also included.  Heat resistant ceramics containing MgO, BeO or ThO2 with Mo or steel sheared fibres are also produced by compacting and sintering in hydrogen at 2200 DEG F.
Patent GB-855765-A (GB)
Title: Panoramic cameras and ojective lens systems for such cameras
IPC: G02B13/04
Filed: 1957-06-28
Abstract: 855,765. Objectives; panoramic cameras. NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN DE RIJKSVERDEDIGING. June 28, 1957 [June 29, 1956], No. 20554/57. Classes 97(1) and 98(1) An objective for a panoramic camera comprises an annular glass body 1 with a convex outer surface 11 and a concave inner surface 12 which is reflecting and connected to the convex surface of a glass body 2. The protruding convex surface of the glass body 2 is connected to the concave surface of a glass disc 5 which spaces the surface 14 of body 1 from another glass body 6 having a concave reflecting surface 7; a shutter 9 is housed within the space between bodies 1 and 6. The body 2 comprises connected parts enclosing a diaphragm 4 and has a convex outer surface 16 spaced from the concave inner surface 17 of a glass body 8 having a cylindrical outer surface 18. Optical data for one objective are given in the Specification. This objective is mounted in a panoramic camera (which may be in an aircraft) so that it extends through an opening in a casing 22, and a roll film 10 is fed from a supply spool 24 via roller 32 and sprocket 28 around the cylindrical surface 18 of glass body 8 and thence via another sprocket 28 and rollers 30, 31 back to take-up spool 25. The glass body 8 is mounted on a shaft 44 which is rotated by a motor, together with the spools and sprockets. When the camera is not in use, the glass body 11 is enclosed by a cover 19 which is connected by arms 47 to a support 45 slidable on a shaft 48 connected to a cylindrical part 20 attached to casing 22 by an arm 21. This support is spring urged upwards by a spring 49 and is guided by a roller 50 engaging a forked guide 51 on part 20. Lowering of support 45 in order to uncover leas 11 and thus photograph substantially 360 degrees of the horizon is effected electrically by means including a solenoid 52. During this lowering movement of support 45, a pin 54 thereon opens a flap 33 so that an image of the earth immediately below the camera is projected on to the film 10 by a second optical system comprising lens 34, prism 35, lens 36 and prism 38, Fig. 3, and lenses 39, 40 and a prism 41, Fig. 4 A shutter 37 in the light path through this system is mechanically coupled with the shutter 9.
Patent GB-126939-A (GB)
Title: Improvements in Slow-acting Devices for use with Railway Switches, Signals, and for other Purposes.
IPC: B61L5/00
Filed: 1918-12-10
Abstract: 126,939. McKenzie, Holland, & Westinghouse Power Signal Co., (Assignees of Neubert, W. P.). May 14, 1918, [Convention date] . Dash-pots.-A dashpot for obtaining slow movement consists of a float 1 supported on a liquid in a receptacle 4 so that any liquid displaced as the float de. scends passes to a second chamber shown with an enlarged upper portion 7. The second chamber is connected by passages with the bottom of the float chamber through an aperture, the size of the passage being regulated by a needle 8 mounted on a diaphragm 9. The position of the diaphragm and needle is regulated by a screw in the base of the apparatus. A shield 5<a> may be formed on the upper part of the float to prevent splashing. The apparatus is stated to be applicable to railway switches and signals.
Patent GB-460267-A (GB)
Title: Improved sound locator horn for aircraft locating systems
IPC: G10K11/28
Filed: 1935-07-19
Abstract: 460,267. Sound-magnifying appliances. SPERRY GYROSCOPE CO., Inc. July 19, 1935, No. 20578/36. Convention date, July 19, 1934. Divided out of 456,078. [Class 13] Sound locator horns for use in aircraft locating systems comprise an inner soundreceiving element 1 and an outer covering 6, Fig. 2, either or both of which are of streamline contour to lessen the effect of wind or other extraneous noises, and the space between the two preferably containing sound-insulating material, while in addition sound filters 56, Fig. 6, may be arranged in the passages 54 leading from the horns to the operators' ears. As shown in Fig. 2, the interior horn 1 and covering 6 merge into each other by a bellmouth 2, insulating packing 5 is disposed between the two, while the inner end of the horn 1 communicates by means of a curved way 7 with the sound passages 11, between which and a supporting framework 10 intervening insulating material is arranged. Three horns A, B, C are mounted on a framework 47, Fig. 5, which is rotatable about an horizontal axis 45, and also about a vertical axis with respect to a base 30. Operators on platforms 37, 38 control the adjustment of the framework 47 and horns by handwheels 31, 39 cooperating with gearing 32-36 and 40-42, the two horns A, B furnishing the elevation of the aircraft &c., and the two horns B, C the azimuth. The framework 47 is preferably oscillatable about one of its elements 49 against the action of a blade spring 48. When desired the system may be locked in position by means of releasable friction elements mounted on a bracket.