baber/WOPTO huggingface dataset:
Patent GB-1517288-A (GB)
Title: Lamp assembly
IPC: F21V11/16
Filed: 1974-12-07
Abstract: 1517288 Lamps LUCAS ELECTRICAL Ltd 17 Nov 1975 [7 Dec 1974] 53038/74 Heading F4R A vehicle lamp comprises a lens 11 and a neutral density light absorbing member 16 which cover the mouth of a reflector 13, the member having a plurality of parallel elements 18 so arranged that externally incident light which enters the lamp and is reflected out again is reduced in intensity by the member and suffers a further reduction in intensity when it is inclined at more than a predetermined angle (15 degrees) to a plane parallel to the elements.
Patent GB-1087209-A (GB)
Title: Method and apparatus for the infiltration of tissue
IPC: G01N1/31
Filed: 1965-12-15
Abstract: 1,087,209. Electron microscopy. TECHNICON CO. Inc. Dec. 15, 1965 [Dec. 28, 1964], No. 53153/65. Heading H1D. [Also in Division G2] In apparatus for the infiltration processing of tissue for histological examination, and particularly for examination by electron microscopy, a tissue cube 60, previously immersed in e.g. osmic acid, is placed between perforated supports 42, 68 and secured (Fig. 5A, not shown). The capsule formed of parts 34, 62 and the cube is inverted and placed in a beaker (82) (Figs. 6, 7, not shown) containing fixative liquid in a trough, which liquid reaches the cube through the perforations. Several beakers, each containing e.g. 10 capsules, are oscillated up and down in a processor (112) (Fig. 8, not shown). The capsules are removed, washed and automatically processed in wells containing dehydrant and infiltrant solutions, surrounded by a potting compound and cured in an oven. On removal from the oven, the parts 62 are removed and the tips of the assemblies cut away providing cross-sections of infiltrated cubes of tissue for microtomy.
Patent GB-1330191-A (GB)
Title: Process and device for measuring wear on a drilling tool during use
IPC: E21B15/00
Filed: 1970-11-11
Abstract: 1330191 Measuring tool wear SOC NATIONALE DES PETROLES D'AQUITAINE 11 Nov 1970 [12 Nov 1969] 53705/70 Heading G1N [Also in Division H4] The extent of wear of a drilling tool is determined by an analysis of the harmonic content of the vibration signals during drilling. The vibrations of a tool at the bottom of a borehole are sensed by two out-of-phase accelerometers 24a, 24h, Fig. 1, at the top of the drilling assembly 28-31, the signals being conveyed via slip-rings to a voltage limiter 26 incorporating an adjustable frequency filter, whereby a frequency analysis is obtained. It is stated that the ratio of the amplitude of the third harmonic to the level between the third and fourth harmonics is greater than 2 for a good drill, and approximately 1 for a worn tool. Alternatively the average amplitude for a frequency band from 40 to 100 times the rotating frequency is determined, and is indicative of the extent of wear of the tool.
Patent GB-1262833-A (GB)
Title: Camera tube including a photo-conductive target
IPC: H01J31/38
Filed: 1970-11-13
Abstract: 1,262,833. Image pick-up tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Nov., 1970 [17 Nov., 1969], No. 54133/70. Heading H1D. In a camera tube employing a photo-conductive target which is stabilized by a scanning beam at substantially cathode potential, a luminescent material is provided in a viewing field of the target in the path of electrons reflected by the target in operation, thereby preventing dark areas of the target from being stabilized at too low a potential by the fast electrons in the beam. In one arrangement a luminescent coating 22 is provided on an anode 11 of the electron gun and is excited by the return beam 21. Alternatively or in addition the side of a mesh 13 facing the target may be coated with luminescent material; this is especially advantageous when the cathode is pulsed to a higher potential during fly-back times. The target 15 may comprise a layer of PbO about 20 microns thick, and the luminescent material may be copperactivated ZnS, or ZnS CdS.
Patent GB-1339285-A (GB)
Title: Digital electric information processing system
IPC: G06F12/00
Filed: 1970-11-28
Abstract: 1339285 Digital computers BURROUGHS CORP 28 Nov 1970 [28 Nov 1969] 54200/70 Headings G4A and G4C A digital electric data processing system receives a plurality of nested data structures, and prepares an absolute structure address therefrom. The system has a free field storage system which stores data and instructions as a number of nested structures, e.g. if a memory structure has 300 locations 0-300, a first structure begins at 50 and ends at 250, a second structure in the first structure begins at 100 and ends at 200, and a third structure begins at 125 and ends at 175. Each structure is defined with reference to its container structure, i.e. the third structure begins at 025 of the second structure and ends at 075. A descriptor contains access attributes defining protection capability &c., interpreter attributes defining the characteristics of that referenced memory and a structure expression containing all the data necessary for accessing a desired structure and is evaluated in kernal section 23 to create a memory control word (terminal descriptor) which is used to address the system storage. Operation (Fig. 3).-A description implodeexplode mechanism 35 unpacks and updates descriptors received from associative memory 41. The container address stack (register) 32 holds the address of the longest container structure and container length stack 31 holds the structure length. Stack 34 holds the address of the contained structure and stack 33 holds its length. The arithmetic unit 20 receives the data in stacks 31-34 and combines these to form an interim structure address which is transferred to stacks 32 and 31. The process is then repeated until the address of the desired structure is attained.  Other apparatus.-This comprises central processors 10, I/O control modules 18, back-up memory 14, e.g. core or disc, memory modules 11, peripheral devices 19, and an interlock 20. Each module 11 comprises two memory storage units 12 and an isolation unit 13. The processors 10 activate and deactivate processes, direct information transfers between modules, service interrupts and execute arithmetic calculations required by a programme. These functions are performed under a master control programme MCP. There are four types of descriptors (Fig. 4, not shown) which reference respectively locked data fields, data objects, programme segments or other descriptors, and fault testing is mentioned. There is common subject matter with Specifications 1,336,981 and 1,339,284.
Patent GB-1161489-A (GB)
Title: Improvements in or relating to Cooling Waste Gases
Inventor: WOODHEAD FREDERICK ASHWORTH
IPC: F22B1/18
Filed: 1965-12-22
Abstract: 1,161,489. Cooling waste gases; steam generators. SIMON-CARVES Ltd. 9 Dec., 1966 [22 Dec., 1965], No. 54378/65. Headings F4A and F4S. A heat exchanger arrangement particularly for use in cooling waste gases from a steel making converter 10 comprises a first heat exchanger 12 through which the waste gases flow and in which they are cooled by an aqueous cooling fluid normally water, a second heat exchanger 14 for cooling the aqueous fluid and an interconnecting pipework 16 for recycling the aqueous fluid. As shown the exchanger 12 comprises annular headers 26, 28 interconnected by vertical tubes 22, the cooled waste gases leaving normally through a conduit 30 leading to a spray cooler and an electroprecipitator. Alternatively the gases may pass through conduit 32 directly to the atmosphere. The water after flowing through the heat exchanger 12 and into an expansion tank 56 is cooled in the heat exchanger 14 before being recycled by way of pipe 50 and pump 52. In the heat exchanger 14, the water flows along horizontal tubes 44 and is cooled by air induced by a fan unit 47. In a second embodiment (Fig. 3, not shown) wherein steam is generated within the first heat exchanger (112), the tank (156) acts as a phase separation means. Saturated steam passes into the second heat exchanger (114), is condensed and returned to the tank (156) for recycling. The water may circulate by natural convection, the pump being dispensed with.
Patent GB-1117494-A (GB)
Title: Production of aromatic amines
Inventor: HEYDKAMP WOLFGANG
IPC: C08G18/83
Filed: 1965-12-22
Abstract: Polypropylene glycol (mol. wt. 1975) is reacted with tolylene-2,4-diisocyanate, followed by tertiary butyl alcohol to give a ditertiary butyl carbonate (I).  (I) is heated with p-toluenesulphonic acid or BF3 to give a polyamine, mol. wt. 2400 or 2210 respectively. If (I) is heated with NaHSO4 or CCl3CO2H, chain extension occurs simultaneously, giving products of mol. wt. 3350 and 3200 respectively (see Examples 3-6).ALSO:In Examples 7 and 8, alpha-methylstyrene and styrene are obtained by heating, respectively, cumyl and 1-phenylethyl N-phenyl-carbamates, in presence of HCl.ALSO:Primary aromatic amines are made by reacting aryl isocyanates with secondary or tertiary alcohols to give urethanes, the latter being heated in an inert solvent, preferably in presence of an acid catalyst, e.g. HCl or p-toluenesulphonic acid. In examples, the following end-products were obtained from the indicated urethanes which were in turn prepared from the appropriate isocyanate and alcohol:-aniline hydrochloride (t-butyl, cumyl or 1-phenylethyl N-phenylcarbamates) and 2,4-tolylenediamine (1 - methyl - 2,4 - phenylene-bis-t-butylcarbamate).
Patent GB-1457443-A (GB)
Title: Lighting panel
IPC: F21V5/02
Filed: 1973-11-23
Abstract: 1457443 Light refracting plates US INDUSTRIES Inc 23 Nov 1973 [24 Nov 1972] 54499/73 Heading F4R A lighting panel for use with fluorescent lamps comprises a sheet of plastics material, e.g. polystyrene, the surface of the sheet which is nearer to the lamps, in use, having thereon a refracting pattern of congruent triangularbased pyramids, the base lines of which are coplanar and common to adjacent pyramids, the angle of inclination of the sides of the pyramids being 50 to 60 degrees. As shown, the pattern is formed by three sets of parallel V-shaped grooves A-A, B-B, C-C, in the said surface of the sheet, each groove having an included angle of 66 degrees, and each set of grooves extending at an angle of 60 degrees relative to the other two sets. At apices D1, D2, each side of each pyramid is right-angular. The pattern may be made by extrusion embossing. Preferably, visible lamp image is reduced by an opal acrylic sheet placed over the patterned surface. The opposite surface may have a light-modifying or decorative pattern embossed therein or applied thereto on a further panel.
Patent GB-1395540-A (GB)
Title: Means for injecting tree trunks with preservative
IPC: B27K3/10
Filed: 1972-11-28
Abstract: 1395540 Injecting trees DUNLOP Ltd 14 Nov 1973 [28 Nov 1972] 54833/72 Heading A1E [Also in Division D1] A preservative liquid is injected into the trunk of a tree (felled or unfelled) by pumping the liquid under pressure into a flexible conduit 3 encircling the trunk, via an inlet 1, the fluid passing into the trunk via an outlet which may protrude from the internal periphery of the conduit to engage in an incision 4 in the trunk, the pressure of the liquid in the conduit effecting a seal between the conduit and the incision. The conduit may be in the form of a continuous ring, Fig. 2, or a finite length of flexible tube, Fig. 3, whose ends are sealed and are adapted to be overlapped and secured about the trunk, e.g. by straps. In the latter case the conduit may be in the form of an inner tube 7 with sealed ends 7a within an outer protective cover 8. Both may be made of polychloroprene coated polyamide fabric. The outlet of the conduit may be of smaller dimensions than the inlet. The inner surface of the conduit may be provided with a layer of closed cell polychloroprene foam to enhance the seal with the incision. The incision is a circumferential slot cut in the tree trunk and sufficiently deep to reach the outer layer of the heart wood core.
Patent GB-1388399-A (GB)
Title: Dewatering of sludges
IPC: C02F1/54
Filed: 1971-11-30
Abstract: 1388399 Dewatering sludges IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Nov 1972 [30 Nov 1971] 55498/71 Heading C1C In a process for dewatering a sewage sludge the sludge is flocculated with a copolymer comprising 1-99% by weight of units of the formula where R=H or CH 3 , A=alkylene having 2 to 3 C atoms, X-=monovalent anion (e.g. chloride, bromide, methyl sulphate), the remaining units being derived from methacrylamide. The sludge may then be subjected to a step of compaction, vacuum or pressure filtration, flotation or centrifugation.
Patent GB-1288275-A (GB)
IPC: C22C29/12
Filed: 1969-11-17
Abstract: 1288275 Abrasive compositions EIDUPONT DE NEMOURS & CO 17 Nov 1969 [18 Nov 1968] 56215/69 Heading C4V [Also in Division C7] Dense, homogeneous compositions having an average grain size less than 10 microns consist essentially of (1) 30-87% by volume of a non- electrically conducting wear-resistant material consisting of alumina, aluminium nitride, zirconium, or mixtures of these, (2) 10-60% of one of the electrically conducting nitrides of titanium, tantalum, zirconium, hafnium, or niobium and (3) 3-15% of ametal component which consists of (A) 50-80% of tungsten and/or molybdenum and (B) 20-50% of one or more of nickel, iron and cobalt. The compositions do not contain more than one part per volume of the metal component (3) for every three parts by volume of the wear-resistant material and the volume proportion of the metal component does not exceed that of the electrically conducting nitride. In preparing the compositions the various constituents are ground in rotating mills using a liquid medium which is a hydrocarbon oil and an inert atmosphere of nitrogen or argon and drying the powder at 150-300 C. under vacuum and storing in an inert atmosphere. They are then consolidated to dense, pore-free bodies by sintering under pressure, as by hot pressing in a graphite mold under vacuum.
Patent GB-1396027-A (GB)
Title: Electronic display apparatus
IPC: G01R13/40
Filed: 1972-12-07
Abstract: 1396027 Analogue to digital converters; indicators COMPTEURS SCHLUMBERGER 7 Dec 1972 [10 Dec 1971] 56502/72 Heading G4H  An indicator comprises two groups of lights V 1 -V 3  and V 5 -V 7  on respective sides of a central continuously energized datum light V 4  for indicating positive and negative values respectively. Thus a positive difference between an input signal C and a datum signal M causes one or more of V 3 , V 2 , V 1  to light according to how many thresholds 6 it exceeds and a negative difference signal causes one or more of V 5 , V 6 , V 7  to light according to how many thresholds 6<SP>1</SP> it exceeds after inversion at IC2. The threshold increments are defined by diodes CR 5 -CR 8 . The input signal C may represent a temperature. The lights may be gas tubes or electroluminescent diodes.
Patent GB-1344090-A (GB)
Title: Moulds for casting purposes
IPC: B22C9/06
Filed: 1971-12-08
Abstract: 1344090 Casting moulds SAKABE INDUSTRY CO Ltd 8 Dec 1971 [10 Dec 1970] 57098/71 Heading B3F A permanent casting mould for metals has at least 3 layers 1, 2, 3, that layer 3 forming the mould cavity having the lowest coefficient of thermal expansion while the covering layers 1, 2 have progressively higher coefficients of thermal expansion outwardly. As exemplified the layers are (1) chamotte + 3% wt. tridymite, (2) chamotte/SiC 2  mixture + 0À7 to 0À8% wt. tridymite and (3) SiC 2  + 0À5% wt. tridymite. The mould is press-formed and baked to 1300‹ C. before use.
Patent GB-1206413-A (GB)
Title: Foundry ladle crane
IPC: B66C17/10
Filed: 1967-12-19
Abstract: 1,206,413. Foundry ladle crane. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. 19 Dec., 1967 [21 Dec., 1966], No. 57670/67. Heading F4B. A foundry ladle crane comprises a gantry having a H-shaped portal 1 and running on tracks, a U-shaped trolley frame 5 running on the bridge arms 4 of the gantry and a ladle supporting frame 7 mounted so as to be vertically displaceable on guide columns 6 depending from the trolley frame 5. The ladle support frame 7 has a rear girder 12 lower than the front member 11 and blocks 18 to receive the ladle trunnions. It is secured to the guide columns 6 by rams 10 articulated to the frame 7 and to brackets on the columns 6 at points directly below the wheels 9 of the trolley frame 5. The frame 7 is steadied by arms 20 hinged to the frame and carrying rails 22 engaging rollers 21 on the columns 6. Rollers 23 below the bridge arms steady the trolley frame on the gantry. The rear girder 12 of the support frame is arranged to be at the level of the cross-bar 3 of the portal when the frame is in position to receive a ladle so that a ladle 19 can be placed into the support frame without having to be lifted above this level, the U-shaped trolley not interfering.
Patent GB-1213010-A (GB)
Title: Method of making an article such as a door
IPC: B29C43/00
Filed: 1967-12-19
Abstract: 1,213,010. Moulding doors; polyvinyl chloride laminate. WEN-PLAST A.B. 19 Dec., 1967 [18 Jan., 1967], No. 57721/67. Headings B5A and B5N. [Also in Division E1] A door comprising a core of cellular polyvinyl chloride encased within a fibre reinforced plastics coating, is moulded by successively applying to each of two waxed and polished stainless sheet steel mould halves; an initial gel coat of unsaturated polyester containing thixotropic agent, colour pigments, and methyl-ethylketone peroxide and cobalt naphthenate hardener, which is allowed to set providing a tacky surface; plastics material comprising 60% unsaturated polyester, and 40% unsaturated polyester with added accelerator and curable by benzoyl peroxide; a first glass fibre matt which is allowed to absorb the resin; a second glass fibre matt formed with styrene soluble binder which also absorbs the plastics material; a third glass fibre matt bound with a non- styrene-soluble binder. A hard cellular polyvinyl chloride core, which may have aluminium reinforcement and hinges and fittings, is then placed in one mould half and the mould halves are then pressed together in a press whereby pressure is increased to slowly impregnate the third glass fibre matt layer with the plastics.
Patent GB-1183918-A (GB)
Title: Cylinder Head Gasket
Inventor: KNELL ALAN ALFRED
IPC: F16J15/08
Filed: 1968-12-14
Abstract: 1,183,918. Joint-making packing. FORD MOTOR CO. Ltd. 14 Dec., 1968, No. 59578/68. Heading F2B. An internal combustion engine cylinder head gasket (10) comprises a steel sheet coated on one or both sides in the regions (12) surrounding the cylinder apertures (11) with a layer of aluminium, the remainder of the sheet being coated on both sides with polyvinyl chloride. The aluminium and polyvinyl chloride coatings are preferably about 0À003 inch and 0À0015 inch thick respectively.
Patent GB-1329145-A (GB)
Title: Wiring fields
IPC: H04Q1/16
Filed: 1970-12-17
Abstract: 1329145 Distribution frames SIEMENS AG 17 Dec 1970 [18 Dec 1969] 59847/70 Heading H1L [Also in Division H2] A distribution frame includes earthed conductive channels adapted to contain signalling conductors and incorporating connecting elements integral with the channels and adapted for connection to those signal conductors to be earthed. As shown the frame 5 is formed from elongated channels 2 of metal, plastics metallized by vapour deposition or plastics with metal foil bonded thereto. Edges of the channels are provided with integral lugs 4 at frequent intervals along their lengths to provide convenient earthing points for conductors within the channels. The conductors may be coaxial cables. Each channel may be subdivided longitudinally by metal foils which separate the cables into screened layers each layer including only cables which transmit in one direction. Components to which signal conductors are to be connected are positioned in the apertures between the channels so that all connections can be effected in the plane of the lugs 4.
Patent GB-1400723-A (GB)
Title: Means for circulating liquids or mixtures of liquids and solids in a container
IPC: B01F33/40
Filed: 1971-12-30
Abstract: 1400723 Mixing or promoting a turbulence JONES & ATTWOOD Ltd 13 Dec 1972 [30 Dec 1971] 60803/71 Heading BIC [Also in Division F1] Means for mixing or promoting turbulence in a liquid or liquid solid mixture comprises a gas bubble emitting device 14 formed by an inverted cup 15 having an aperture from which a skirt 16 projects, the lower edge of the skirt is above the lower edge of the cup, and means, pipe 17, for introducing a pressurised gas into the interior of the cup. As shown in Fig. 2 a riser tube 21 may be placed above the skirt and a heating jacket 23 may surround the tube. In a further embodiment the riser tube surrounds the upper end of the skirt 16 and is attached to the cup 15. Fig. 4 shows a further embodiment where the gas bubble emitting device is positioned in a separate chamber 29 apart from the main chamber 10. Conduits 31, 30 allow mixture 13 to be carried to and from chamber 29.
Patent GB-1244546-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M3/44
Filed: 1969-12-12
Abstract: 1,244,546. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. 12 Dec., 1969 [13 Dec., 1968], No. 60865/69. Heading H4K. In an abbreviated dialling system substations have indicators by means of which a called substation can ascertain the identity of the calling substation. When employing the abbreviated dialling facility a calling substation sends a prefix followed by the abbreviated digit code. In response, the exchange register seizes a code translator which as well as producing the full directory number of the wanted substation, produces an abbreviated code for transmission as a voice frequency signal to the called station where it is indicative of the identity of the calling station. Tf push-button senders are used, the prefix can be dispensed with, a push-button corresponding to the wanted abbreviated code or its first digit being set before the handset is taken down so that the register receives a signal without delay after seizure as compared with a normal sending operation in which the handset is taken down first and there is some delay before the first digit is received. In the code converter shown in Fig. 2 the identity of the calling station sets selector V to operate a relay of the set R1 to Rn which is individually associated with that station and connects up all code wires associated with that station. The abbreviated codes 1 to m select a corresponding one of the code wires t1 to tm so that a particular code wire of the 10 x 5 magnetic core matrix is energized to produce the wanted full directory number on registers A to E from which they are transferred to the exchange register. The selected code wire also threads one of m cores in an auxiliary column which by reading out to register F sends the code which at the called substation is indicative of the calling substation.
Patent GB-1283939-A (GB)
Title: Improvements in or relating to vehicle steering systems
Inventor: HIGGINS PETER
IPC: B62D7/14
Filed: 1969-12-22
Abstract: 1283939 Steering mechanisms P HIGGINS 21 Dec 1970 [22 Dec 1969] 62275/69 Heading B7H The offside wheels 11, 13 of a vehicle are connected to the steering box 15 via steering linkages 17, 18 and 22 and drop arms 16 and 19, and to the near side wheels 12, 14 via track rods 23 24, the near side wheels (Fig. 2, not shown) being interconnected via link arms (25), (28) and (30) and drop arms (26), (29) pivotally mounted in the chassis. The interconnection of the near side wheels allows greater control of the rear near side wheel 14.