baber/WOPTO huggingface dataset:
Patent GB-632879-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B61B10/00
Filed: 1947-09-29
Abstract: 632,879. Elevated railways. KING, D. M. Sept. 29, 1947, No. 26312. [Class 104 (ii)] [Also in Group XXXVII] In overhead conveyer in which trolleys 10 are driven along a track 11 by an endless chain 13 carrying abutments 12 engaging the trolleys, the diversion of a trolley on to a branch line, or its stoppage for the purpose of loading or unloading is effected electrically by devices in circuits controlled by depressible contacts, plungers, or the like located at the requisite positions on the track and operated selectively by keys 17 carried by or with the trolleys, the keys being formed with notches, indentations, or the like which are effective only at a predetermined switching station 18 along the track. As shown in Fig. 2 the selector key 17 is mounted on a carrier 16 pivoted to a bracket 15 on the load bar 14, and consists of plate with its leading and trailing edges bevelled to facilitate passage through the switch units. The switching units 18 each consist of a channelled body portion 19, Fig. 3, in which one or more spring loaded plungers 25 or other depressible contact devices are mounted to lie in the path of the profiled edge or edges of the selector keys 17, whereby the plungers 25 are actuated in accordance with profile selected to be effective at the respective station. The plungers may be moved to different extents and in different combinations. To allow sufficient time for the plungers to operate to close their associated circuits the selector key 17 is coupled temporarily to the body 19 of the switch in a mechanical manner by means of a pair of pivoted latches 26, and the body 19 is allowed a short travel relative to its supporting plate 20 by providing it with a pair of guide studs 21 which engage within a slot 22 in the plate 20. A tensioned spring 23 connected between these relatively movable bodies returns the body 19 to its normal position after it has been moved far enough to become disengaged from the latch 26.
Patent GB-883945-A (GB)
Title: A process for the removal of free oxygen and the catalytic reduction of oxides of nitrogen in waste gases
IPC: B01D53/86
Filed: 1958-03-26
Abstract: Removal of free oxygen from, and reduction of oxides of nitrogen in, waste gases, e.g. tail gases from the production of HNO3 by oxidation of NH3 containing N2, O2, NO, and NO2, is effected by contacting a mixture of the waste gas with a fuel gas containing saturated and unsaturated hydrocarbons, and any of the sulphur compounds COS, CS2, and H2S with a catalyst containing Pd, Pt, Rh, Ru, or mixtures thereof.  The fuel may be in excess, e.g. 2-20% vol., of the quantity for complete combustion of the O2 and nitrogen oxides, and may contain C1-C5 hydrocarbons, up to 25% olefins, and up to 100 p.p.m. sulphur compound, e.g. a mixture of methane, ethane, ethylene, propane, propylene, butane, and carbonyl sulphide.  The catalyst may be 0,1-2% metal on a support of alumina, silica, diatomaceous earth, as pellets, granules, or powder.  Gas inlet temperatures are 400-900 DEG  F. at atmospheric to 500 p.s.i.g. pressure, and space velocities 10,000-200,000 v/v/hr.  The contact may be in two stages as described in Specification 883,944, with intermediate cooling, and space velocities may be 50,000-190,000 v/v/hr. in the first stage, and 30,000-100,000 v/v/hr. in the second.  Specifications 849,842 and 883,946 also are referred to.
Patent GB-305513-A (GB)
Title: Improvements in or relating to anti-dazzle devices
IPC: G02C7/16
Filed: 1927-10-06
Abstract: 305,513. Madge, R. G. Oct. 6, 1927. Goggles.-Anti-dazzle devices of the kind comprising a support, resting on the nose of the wearer, and carrying one or more screens mounted to rock about a horizontal axis situated above the eyes of the user, have the support in the form of an open or skeleton frame having side wires, the screen being arranged to extend across both eyes of the wearer and detachably mounted on the skeleton frame. A considerable number of examples of the construction of the screen and the detachable connections are described, of which the following forms are typical. A skeleton frame 20, Fig. 1, has a straight central portion constituting an axis about the screen 31 may pivot on clips 32, 33. The screen 21 extends across both eyes of the wearer and is of translucent material. Two depending portions 35, 36 have sloping edges 37, 38 arranged so that one side of the field of vision is screened, movement of the eyes to one side sufficing to screen them from dazzle. Transparent screens, in addition, may be fitted to protect the eyes from draughts. Fig. 7 shows a modified support 63 for the frame 60 which is adapted to clip on to spectacles or eyeglasses. The ends 65 of the frame are bent over and housed in integral lugs 66 on the screen 61. In a modified form of screen, Fig. 14, there is provided a side screen 83 on each side and a lower depending portion 81 below each eye sloping towards the face of the wearer. The screen may be provided with apertures 105, Figs. 17 and 18, which apertures may be fitted with shutters 103 having various sized holes adapted to register with the holes 105. This form of screen is shown mounted on a modified support 111 comprising clips by which it is secured to a frame 109. A bar 112 on which the screen pivots is constructed with bent ends engaging the support 111 as shown. An additional shade mav be provided in front of the screen 100 and arranged to clip on to it. The screen 100 is also constructed in two portions each of which may be individually pivoted to the lens frames of spectacles. In place of apertures 105, notches 147, Fig. 35. may be made in the screen of U-form having V-shaped notched shutters 148 mounted in front of them. The latter constructions are stated to be specially applicable for viewing aeroplanes in motion.
Patent GB-644984-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/06
Filed: 1945-10-10
Abstract: 644,984. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 10, 1945, No. 26530. Convention date, Oct. 16, 1944. [Class 39 (i)] In an electric discharge device, the annular space between a cylindrical shield 27 surrounding a coaxial cylindrical cathode 22 and the cathode, is closed at one end and partly closed at the other end by a structure comprising a number of non-perforated coaxial metal discs 35, 36, 37 secured in a fixed position, distanced from each other and whose diameter is larger than that of the cathode structure. Indentations on the outer smaller diameter discs 35, 37 maintain the spacing between them and the inner larger diameter disc 36. The lower disc 37 is joined by welded brackets 39 to one end of the cathode. The shield 27 comprises an outer member, and a shorter inner member 26 which has its open end at a greater axial distance from the disc structure than the outer member. The open end of the outer member lies in the same plane as the inner end of the disc structure. The members 26, 27 are spaced at their lower ends by a disc of 28 of insulating material, and the space between the side walls of these members may be filled with heat insulating material such as sheet metal foil. The electric discharge tube is a grid controlled gaseous tube which may have a filling of hydrogen at a pressure of one to several hundred microns. Preferably the operating pressure is in the neighbourhood of 500 or 600 microns.
Patent GB-463076-A (GB)
Title: Improved toy target
IPC: F41J5/22
Filed: 1935-09-25
Abstract: 463,076. Toys; indoor games. MURPHY, H. F. Sept. 25, 1935, No. 26535. [Classes 132 (ii) and 132 (iii)] An amusement apparatus comprises a toy such as an aeroplane from which a figure such as a parachutist may be projected when released by a target mounted thereon. The apparatus may comprise a cardboard aeroplane body 3, Fig. 1, carried by supports 2 on a base board 1. On the back of the aeroplane is movably mounted a carrier 5 for a model parachutist attached to a strip 10 carrying the target 4. The target engages a fixed abutment 11, Fig. 4, and is forced upwards by an elastic band 16. On the target being struck it is disengaged from the abutment 11 and forced upwards by the band 16 until stopped by an abutment 17, thus projecting the parachutist and at the same time a signal 20 may be shown. The base board may be divided into numbered spaces for use as a game. According to the Provisional Specification two parachutists may be projected by springs and the aeroplane may be mounted on wheels to run on a pair of wires.
Patent GB-966797-A (GB)
Title: Improvements in and relating to throttle valves
IPC: A61M16/18
Filed: 1961-07-21
Abstract: 966,797. Aneasthetic apparatus. O. H. DRAGER, [trading as DRAGERWERKE HEINR. & BERNH. DRAGER]. July 21, 1961 [July 25, 1960], No. 26576/61. Heading AST. [Also in Divisions F2 and G3] An anaesthetic apparatus comprises an inlet 1 for a gas such as air, air with cyclopropane or laughing gas, communicating via a throttle valve 3 (see Division F2) with an evaporator 9 and a mixing chamber 7. Connected in parallel with the evaporator 9 is a by-pass 6 in which a second throttle valve 4 is mounted.
Patent GB-406228-A (GB)
Title: Explosives
IPC: C06B41/02
Filed: 1933-09-27
Abstract: Normal lead dinitrophenylazide is prepared by adding an aqueous solution of sodium azide to a solution of diazodinitrophenol in acetone to form sodium dinitrophenylazide, and then adding an aqueous solution of lead nitrate to obtain a precipitate of lead dinitrophenylazide, which is intended for use in explosive priming and detonating compositions.
Patent GB-1477871-A (GB)
Title: Method and apparatus for making a pattern by electron beam alignment on a semiconductor member
IPC: H01L21/027
Filed: 1974-06-17
Abstract: 1477871 Electron beam apparatus WESTINGHOUSE ELECTRIC CORP 17 June 1974 [19 June 1973 1 Oct 1973] 26657/74 Heading H1D [Also in Division G3] For the alignment of an electron beam(scanning or patterned) with a substrate, in the fabrication of (integrated) circuit patterns, (see Specifications 1,467,521 and 1,477,872 for disclosures of the methods and apparatus used), the alignment is achieved by detection of cathodo-luminescence from detection areas having "well", or "mesa" type configurations, of the semiconductor substrate (of SiC, Ge, GaAs or silicon). Detection area constructions, Figs. 3, 4 (not shown).-The substrate is locally thinner, or thicker in the detection areas (Figs. 3, 4), photodetectors (43, 44) detecting a relative increase, or decrease, resp. in the cathodo-luminescence occurring as the electron beam, or alignment portions thereof, approaches alignment. For a silicon substrate, the cathodo-luminescence is in the infra-red. The detection areas, subsequent to the alignment, may themselves be used as part of the circuit pattern. The detection areas may comprise circular, square or triangular shapes. Reference has been directed by the Comptroller to Specifications 1,330,502 and 1,291,575.
Patent GB-209175-A (GB)
Title: Improvements in wind-propelled toys or boats
IPC: B63H13/00
Filed: 1922-10-03
Abstract: 209,175. Thomsen, T. C. Oct. 3, 1922. Driving-arrangements for screw propellers ; rudders.-A wind-driven toy boat comprises a pair of floats 1 supporting a deck 2 on which is mounted an inclined shaft carrying an air screw 3 and a propeller 4. The floats 1 are provided with water vanes 13 and an air vane 12 is mounted on the deck. The air vane, or a pair of parallel air vanes, may be adjustable; the air vanes may be replaced by a rudder.
Patent GB-682038-A (GB)
Title: Improvements in and relating to solutions of polymeric chlorotrifluoroethylene
IPC: C09D127/12
Filed: 1950-11-02
Abstract: Solid polymeric chlorotrifluoroethylene is dissolved in aromatic hydrocarbons selected from pseudocumene, mesitylene, tert.-butylbenzene, p - tert. - butyltoluene, beta - methylnaphthalene, alpha, beta-dimethylnaphthalene, amylbiphenyl, alpha - methyl - paramethylstyrene, para - cymene, distyrene, diamylbiphenyl, para - ditert. - butylbenzene, and mixtures of alkylated benzenes obtained from coal tar distillates and the cracking and hydroforming of selected petroleum fractions, and mixtures thereof.  The solutions are prepared by heating finely-divided polychlorotrifluoroethylene with the solvent at a temperature of 135 DEG  to 300 DEG  C. to dissolve the polymer, polymer separating out if the temperature of the solution is permitted to drop.  The solutions may be used for coating and impregnating fillers and fabrics such as glass cloth, glass batting, asbestos cloth, asbestos floats, and mica, for the coating of electrical conductors, and in the preparation of laminated sheet materials.
Patent GB-1456013-A (GB)
Title: Pseudodisaccharide intermediates
IPC: C07H15/236
Filed: 1975-06-25
Abstract: 1456013 Pseudodisaccharide intermediates SMITHKLINE CORP 25 June 1975 [1 July 1974] 26857/75 Heading C2C Compounds of the formula where R is an aminocyclitol residue, R<SP>1</SP> is an amine protecting group or hydrogen, A is OR<SP>11</SP>, NHR<SP>1</SP> or NYR<SP>1</SP>, Y is C 1-4  alkyl, and R<SP>11</SP> is a hydroxy protecting group or hydrogen, may be prepared by reaction of the corresponding 3<SP>1</SP>-eno derivative with an epoxidation reagent such as n-chloroperbenzoic acid; resultant isomers may be separated by high pressure liquid chromatography or thin layer chromatography. The galacto isomer may also be prepared for example, by reacting a 3<SP>1</SP>,4<SP>1</SP>-dihydroxy derivative, such as 5,6-o-cyclohexylidene-tetra- N - methoxycarbonylneamine, with benzoyl chloride in an organic amine solvent, reaction of the product with mesyl chloride to give the 3<SP>1</SP>-benzoyl-4<SP>1</SP>-mesyl compound, which, on treatment with base gives the galacto isomer. The allo isomer may also be prepared by reacting the same 3<SP>1</SP>,4<SP>1</SP>-dihydroxy derivative with ptosyl chloride, to give the 31-tosyl derivative, which on treatment with base gives the allo isomer. Preferred aminocyclitol residues R are of the formula The compounds may be used as intermediates in the preparation of compounds having antibacterial properties. for example, 31,41-anhydro- 5,6 - o - cyclohexylidene - tetra - N - methoxycarboxylneamine may be reactd with an azide, the 4<SP>1</SP>-azido product separated, the azido group hydrogenated, and the amino and hydroxy protecting groups removed to give a product which is believed to be 4-amino-4-deoxyneamine.
Patent GB-423751-A (GB)
Title: Improvements in or relating to the manufacture of photogravure inks
IPC: C09D11/02
Filed: 1933-09-29
Abstract: 423,751. Inks. WORNUM, W. E., Calydor, Codsall Road, Tettenhall, Staffordshire, and MANDER BROS., Ltd., St. John Street, Wolverhampton. Sept. 29, 1933, No. 26873. [Class 146 (iii)] A photogravure ink comprises a pigment and a resin, resin-oil system, or pitch dissolved or dispersed in a solvent which is substantially free from water, but contains at least ten per cent of a constituent or fraction which boils above 160‹ C., preferably a petroleum fraction distilling between 150 and 250‹ C. and rich in aromatic hydrocarbons. According to examples : (1) chrome yellow and barytes are incorporated in a solution of dammar resin in a petroleum fraction of boiling range 150-250‹ C., or in a solution or dispersion of coumarone resin in a mixture of xylol and a petroleum fraction of boiling range 150-250‹ C. ; (2) prussian blue and barytes are incorporated in a medium consisting of dammar and limed rosin dissolved in a mixture of petroleum fractions boiling between 150-250‹ C. and below 160‹ C., (3) red lake gilsonite, xylol, and petroleum fraction of boiling range 150-250‹ C. are employed; (4) a glossing varnish for addition to an existing ink consists of dammar dissolved in a mixture of xylol and petroleum fraction boiling between 150 and 260‹ C., the amount of the petroleum fraction depending on the composition of the ink to which the addition is to be made.
Patent GB-727406-A (GB)
Title: Improvements in or relating to aluminium or aluminium alloy journalled components
Inventor: TAIT WILLIAM HENRY
IPC: C25D11/04
Filed: 1951-11-16
Abstract: 727,406. Bearings. GLACIER METAL CO., Ltd. Nov. 7, 1952 [Nov. 16, 1951], No. 26912/51. Drawings to Specification. Class 12 (1) [Also in Group XXXVI] Journal surfaces of aluminium or aluminium alloy are hardened by anodizing and are impregnated with a solid lubricant such as poly-tetrafluoro-ethylene or molybdenum disulphide in suspension in alcohol or water. The journals are employed in conjunction with bearings of tin or lead base white metals, copper-lead or copperlead-tin, or bearings incorporating solid lubricants such as poly-tetra-fluoro-ethylene.
Patent GB-151929-A (GB)
Title: Improved process for the manufacture of sliding and pressure contacts for electrical purposes
IPC: H01H1/027
Filed: 1920-09-22
Abstract: 151,929. Siemens & Co., Geb. Sept. 30, 1919, [Convention date]. Metallic plastic compositions.-Brushes and contacts for dynamo-electric machines and for other electric apparatus are made by moulding with pressure and heating, a pulverulent mixture of 20 to 60 parts of graphite and 80 to 40 parts of a metal, such as copper. A pressure of 2000 kgs. per square cm. lasting from one-half to one minute or longer, and temperatures of 200-300‹ C. are mentioned in the Specificaton.
Patent GB-937153-A (GB)
Title: Method of making an electrical member
Inventor: KEOGH RAYMOND JOHN
IPC: H02K3/26
Filed: 1961-07-26
Abstract: 937,153. Printed circuits. PHOTOCIRCUITS CORPORATION. July 26, 1961, No. 27084/61. Class 37. [Also in Group XXXV] A method of making a printed circuit comprises the steps of selectively etching the surface of a base member in accordance with the desired circuit pattern, plating over both etched and unetched portions of the surface with a conductive material and removing the conductive material, e.g. by grinding, from the unetched portions of the surface. The invention is described with reference to the production of a rotor for a flat air-gap motor, as described in Specification 874,394, comprising a disc 11 of low-loss silicon iron or of soft iron having conductive copper regions formed therein. The disc 11 of which a portion is shown in section in Fig. 3a is coated with a photo resist 14, Fig. 3b, which is suitably exposed and washed to leave a pattern as shown in Fig. 3c. The upper surface of the disc is then etched, Fig. 3d, and the etchresist 14 is then removed by abrasion and the whole surface of the disc is then coated electrolytically with copper 17, Fig. 3e. The surface of the disc is then ground down flush to leave plated portions 12 corresponding to the etched portions of the disc. In the production of printed circuits the disc 11 may be of an insulating material such as glass and the copper layer 16 may be deposited by an electroless method.
Patent GB-1235514-A (GB)
Title: Improvements in or relating to fuel injection pumps
IPC: F02M45/06
Filed: 1968-06-07
Abstract: 1,235,514. Fuel Injection pumps. INTERNATIONAL HARVESTER CO. June 7, 1968 [June 14, 1967], No.27148/68. Heading F1A. A fuel injection pump for an internal combustion engine of the type in which the start and end of injection is controlled by a spill port 92, the piston 14 has two axially spaced circumferential grooves 94, 96, so that each stroke of the piston gives rise to a pilot and main injection. The piston 14 may be angularly adjusted to vary the injected quantities and the timing thereof. As shown, the groove 94 is inclined and the grooves 96 is of triangular shape in elevation, but in a modification Fig. 4 (not shown) the groove 94 is of isosceles triangular shape in elevation.
Patent GB-874050-A (GB)
Title: Improvements in and relating to shoe heels
IPC: A43B21/37
Filed: 1959-08-07
Abstract: 874,050. Heel protectors. ESKENAZI, R., GAUDEFROY, Y. V., and BELTRANI, J. J. C. R. Aug. 7, 1959 [Sept. 29, 1958], No. 27153/59. Class 17(3) A top lift 4 is secured to a heel by a fixing member 3 which passes through the top piece and is forcibly fitted into a tubular element 1 which is split longitudinally. Member 3 is of slightly greater diameter than the bore of element 1, and has a head 3<SP>2</SP> which is received in a recess in the top lift, and teeth 3<SP>3</SP> which pass through the slit 2 in element 1 to anchor in the hub which may be of plastic material.
Patent GB-649557-A (GB)
Title: Improvements in or relating to carriers for electrical fuses
IPC: H01H85/56
Filed: 1948-10-19
Abstract: 649,557. Fusible cut-outs. BRITISH, MECHANICAL PRODUCTIONS, Ltd., OSBORN, F. T., and SHOREY, L. W. Oct. 19, 1948, No. 27173. [Class 38 (i)] A plug-in carrier for a cartridge fuse comprises a longitudinally-divided housing 1 embracing two parallel, spaced contact pins each of which is bent up from strip to provide two spaced legs 4 and a connecting loop 3, each leg being curved intermediate its ends to provide a clip portion 5 embracing a cap 12 of a cartridge fuse when the latter is inserted through an opening 14 in one wall of the housing into a recess 10 in the latter. The fuse caps are loosely held until the carrier is inserted in a socket whereupon the closing together of the legs 4 of each pin causes the clip portions to grip the caps. Closure means for the opening 14, such as a sliding plate or U-shaped spring cap, and an inspection aperture for the fuse may be provided. In a modification, Fig. 8 (not shown), one leg only of each pin is shaped to embrace a fuse cap. Specification 522,711 is referred to.
Patent GB-792412-A (GB)
Title: Polyhydrophenanthrene compounds
IPC: C07D317/72
Filed: 1954-08-24
Abstract: The invention comprises compounds of the formul  <FORM:0792412/IV (b)/1> in which the 7-position is occupied either by a bivalent group convertible to keto by acid hydrolysis or by a pair of univalent groups together convertible to a single group by acid hydrolysis; <FORM:0792412/IV (b)/2> in which the 7-position is occupied by a univalent group which is convertible to keto by acid hydrolysis; and <FORM:0792412/IV (b)/3> Compounds of the first and second formul  are produced by treating a 2,4b-dimethyl-2-methally - 1 - acetaldehydo - 4 - keto - 1,2,3,4,4a,4b,-5,6,7,8,10,10a-dodecahydrophenanthrene appropriately substituted in the 7-position with osmium tetroxide and decomposing the resulting osmate ester by hydrolysis, suitably with aqueous sodium sulphite.  The compound of the third formula is obtained by the acid hydrolysis, suitably with perchloric acid, of the compounds of the first and second formul .  In an example 2,4b-dimethyl-7-ethylenedioxy-2 - (b ,g  - dihydroxyisobutyl) - 1 - acetaldehydo - 4 - keto - 1,2,3,4,4a,4b,5,6,7,8,10,10a - dodecahydrophenanthrene is produced by the above method from the corresponding 2-methallyl derivative.  Specifications 763,208, 792,411 and 792,413 are referred to.
Patent GB-1475514-A (GB)
Title: Method for preparing haze-resistant lithium-silicate glare- reducing coating
IPC: H01J9/20
Filed: 1974-06-20
Abstract: 1475514 Coated viewing screen RCA CORPORATION 20 June 1974 [25 June 1973] 27395/74 Heading B2E A method for preparaing an optical viewing screen having a glare reducing surface includes the steps of i) heating the surface of a support preferably of glass to 30‹C-100‹C, ii) coating the surface with an aqueous solution containing a lithium-stabilised silica sol, iii) drying the coating, iv) baking the coating at 150‹C to 450‹C and v) subsequent to the baking step, washing the dry coating with hot water. The washing water may have a temperature of above 40‹C and be applied to the coating for 0.5 to 20 minutes. The dry coating may include 1 to 10 weight per cent of carbon particles having an average particle size of less than 100 millimicrons. The dry coating may also include a colour correcting dye in proportions sufficient to produce a neutral gray transmission of light to the human eye.