baber/WOPTO huggingface dataset:
Patent GB-1018532-A (GB)
Title: Composite picture projection and photography
IPC: G03B15/08
Filed: 1962-11-26
Abstract: 1,018,532. Composite photography; apparatus. H. KERKOW. Nov. 26, 1962, No. 44 565 /62. Headings G2A, G2C and G2J. Apparatus for composite photography comprises the combination of two overhead projectors 10, 11 by which images of two film transparencies moving on rollers 19, 20 and 21, 22 at right angles to each other over transparent tables 16,17 on illuminating base portions 12, 13 are projected through lens and mirror systems 30, 31 on to a vertical high reflectance screen as in Fig. 3 (not shown), a cine camera 50 mounted on one of the uprights 27, 28 to photograph said screen, and a slide projector 40 and a cine projector 47 carried on platforms 41 and 48 respectively to project further images on to the screen by means of deflecting mirrors 42, 49 carried on the camera. Low intensity projection lamps may be used with slow film in the camera.
Patent GB-1263763-A (GB)
Title: A camera and method of operating same
Inventor: JONES EMIL TRAVERS
IPC: G03B15/00
Filed: 1969-09-10
Abstract: 1,263,763. Photographic cameras. EXPOSURE CONTROL SYSTEMS Inc. Sept.10, 1969, No.44620/69. Heading G2A. A camera comprises a through the lens exposure control system having a photo-cell 56 positioned behind the film 38. The photo-cell may be connected to a meter 82, an iris diaphragm 16 being manually adjusted by means of a ring 18 to bring the meter pointer to the zero mark. Alternatively the diaphragm 16 may be automatically controlled by the photo-cell. The photo-cell is mounted in a threaded aperture in an element 48 whereby its distance from the film may be adjusted according to film sensitivity. Exposure aperture 24 is adjustable by means of blades 20, 22, and similar blades may be provided for an aperture 44 situated immediately before the photo-cell. Film 38 is guided by a surface 36 of a guide 26 into which element 48 is fitted.
Patent GB-1082180-A (GB)
Title: Process for the preparation of copolymers useful in the production of elastic fibres
IPC: C08G18/72
Filed: 1965-10-25
Abstract: A substantially linear polyester-urethaneurea is prepared by (a) heating a difunctional hydroxy-terminated polyester with a molar insufficiency of an aromatic diisocyanate, (b) heating the product hydroxy-terminated polyester-urethane with an aliphatic diisocyanate, and (c) mixing the isocyanate-terminated product with p-menthane-1:8-diamine.  Suitable polyesters may have M.W. between 1500 and 2500, and may be derived from e.g. malonic, succinic, terephthalic, adipic, methyladipic, maleic, sebacic and suberic acids and ethylene, propylene, trimethylene, 1:3-butylene, tetramethylene, hexamethylene, diethylene, neopentyl and decamethylene glycols. Suitable diisocyanates are 4:41-diphenylmethane-, 4:41-bis(3-methylphenyl)methane-, toluylene and m-phenylene diisocyanates and tetramethylene-, hexamethylene-, 4:41-bis(cyclohexylene)methane-, 1:4-cyclohexylene- and 1:4-dimethylene-cyclohexane - diisocyanates.  Reaction (b) is preferably conducted i.p.o. an organo-tin catalyst, and reaction (c) preferably in an inert solvent, e.g. dimethylformamide, dimethylacetamide, dimethylpropionamide, dimethylsulphoxide and tetramethylurea.  In examples a polyethylene adipate or polyethylene-propylene adipate diol is reacted with 4:41-methylene-bis(phenylisocyanate) and then with 4:41 - methylene - bis(cyclohexane isocyanate) and finally with p-menthane-1:8-diamine in dimethylformamide, the products being extruded into hot water to give elastic fibres.
Patent GB-1269332-A (GB)
Title: An improved support member
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16L3/13
Filed: 1968-09-24
Abstract: 1,269,332. Making fastenings. F.T. PRODUCTS Ltd. 24 Sept., 1969 [24 Sept., 1968], No. 45335/68. Heading B3A. [Also in Division E2] A method of forming a shelf in a substantially flat plate-like support member 12 comprises forming two parallel shear cuts 17 in a substantially flat blank to form a web, forming a non- linear shear cut across the web, pressing the web outwardly of the remainder of the blank to form a shelf 16 and pressing a portion of the shelf adjacent each side of the non-linear shear cut outwardly of the remainder of the shelf to form a step 18 in the shelf.
Patent GB-1150789-A (GB)
Title: Protective Brick against Radio-Active Radiations
Inventor: LEUTHOLD CHARLES
IPC: E04B2/02
Filed: 1967-10-05
Abstract: 1,150,789. Bricks. C. LEUTHOLD and F. LEUTHOLD. 5 Oct., 1967 [11 Oct., 1966], No. 45398/67. Heading E1B. A lead brick for protective screens comprises parallel front and rear faces 1, 2, convex and concave end surfaces 3 and 5 respectively bounded by flat shoulders 4, 4' and 6, 6', and convex and concave upper and lower faces 7 and (11) respectively bounded by flat shoulders 8, 8' and (12, 12') and having central recesses 9 and 13 defined by edges 10, 10 and (14, 14') respectively. Locating lugs 19 or 20 may be provided on the lower face to correspond with slots in the upper face. Arcuate or angle bricks may be formed.
Patent GB-1359872-A (GB)
Title: Substituted 1,2,4-oxadiazolidine 3,5 diones
IPC: A01N47/22
Filed: 1971-09-30
Abstract: 1359872 Substituted 1,2,4-oxadiazolidine-3,5- diones BADISCHE ANILIN- & SODAFABRIK AG 30 Sept 1971 [1 Oct 1970] 45496/71 Heading C2C Novel compounds of Formula I: wherein R denotes an open-chain aliphatic hydrocarbon radical having 1 to 8 carbon atoms and optionally substituted by chlorine, no multiple bond in this radical terminating on the carbon atom by means of which the radical is attached to the rest of the molecule; or R denotes a monocyclic, bicyclic or higher polycyclic alkyl radical having 4 to 14 carbon atoms and optionally substituted by ethynyl, are prepared by reacting the appropriate isocyanate of formula R-NCO, with 4-(3<SP>1</SP>-hydroxyphenyl)- 2 - methyl - 1,2,4 - oxadiazolidine - 3,5 - dione, the latter being prepared from 1-methyl-1- hydroxy - 3 - (3<SP>1</SP> - hydroxyphenyl) - urea and methyl chloroformate. The examples describe the preparation of many specific compounds of Formula I which find use as herbicides.
Patent GB-1399553-A (GB)
Title: Calcination of gypsum
IPC: C04B11/036
Filed: 1972-10-03
Abstract: 1399553 Gypsum calcination RHEINSTAHL AG 3 Oct 1972 [23 Oct 1971] 45553/72 Heading C1A Gypsum is calcined in a flow of hot gas in a calcining installation having one or more centrifugal separators, the temperature of the hot gas supplied being controlled according to the required end product and the water of crystallization at each stage monitored. The gypsum may be pre-dried. Water of crystallization is ascertained by the neutron method of moisture measurement and the material density by means of γ-rays. The material may be re-cycled through one or two stages. The final product may be a mixture of materials from each stage of the process and may contain anhydrite, hemihydrate and dihydrate in either the α- or #-forms.
Patent GB-1195540-A (GB)
Title: Improvements in and relating to Grinding Discs
Inventor: GOLL RICHARD
IPC: B24D7/16
Filed: 1967-10-06
Abstract: 1,195,540. Abrasive tools. MASCHINENFABRIK HEIDENAU VEB. 6 Oct., 1967, No. 45669/67. Heading B3D. [Also in Division B2] A grinding disc, e.g. for use in grinding apparatus wherein cocoa, pigments &c. are ground between the opposed faces of a pair of discs, comprises a disc 1 of abrasive material and a support member 2 surrounding the periphery of the disc. Centrifugal weights 3 are fast with pivot axles 4 mounted in the support member around the periphery of the disc; as the disc rotates the weights fly outwardly and the edges 9 of the pivot axles act inwardly on the disc periphery either directly or through a comparison ring 5. The construction allows rotation of the disc at higher peripheral velocities than those appropriate to the tensile strength of the abrasive material, and also compensates for the different thermal expansions of the disc and support.
Patent GB-981679-A (GB)
Title: Production of compositions containing silica
Inventor: LUMLEY GWILYM IVOR
IPC: C09K23/00
Filed: 1962-12-05
Abstract: A fluid composition, containing silica colloidally dispersed in a water-immiscible organic solvent that is substantially volatile in steam, is produced from an emulsion of a silica aquesol and the organic solvent by distilling off a mixture of the vapours of water and solvent, condensing the vapours, allowing the condensate to separate into two layers and continually returning the solvent layer to the system, this procedure continuing until substantial removal of water from the emulsion has been effected. The solvent, containing from 10 to 20% by weight of emulsifying agent, has a smaller volume of aquasol, containing at least 20% by weight of silica, added thereto, and the evaporation is carried out under reduced pressure and at a temperature below 80 DEG  C., for example between 30 DEG and 75 DEG  C.  The emulsion may be produced with the aid of a mixture of non-ionic and anionic emulsifying agents.  Non-ionic agents may be for example a polyethylene glycol ether such as nonylphenol polyglycol ether. Anionic agents may be for example an alkali metal salt of a sulphated fatty acid monoester such as dodecyl or dioctyl sodium sulphosuccinate. The organic solvent may comprise an aliphatic hydrocarbon with a boiling point within the range 100 DEG  C. to 250 DEG  C., for example white spirit boiling essentially in the range 150 DEG  to 200 DEG  C.  The composition, which may contain from 10 to 25% by weight of silica, may be incorporated in a polish.  An example describes a wax paste floor polish containing 15% by weight of the composition and which shows enhanced frictional properties. Specification 965,123 also is referred to.ALSO:A polish contains a fluid composition which contains from 10% to 25% by weight of colloidally dispersed silica.  In an example, a wax paste floor polish containing 15% by weight of this composition is described which has enhanced non-slip frictional properties.  Specification 965,123 also is referred to.
Patent GB-1123377-A (GB)
Title: Apparatus for stabilizing the roll of a ship
Inventor: CANE PETER DU
IPC: B63B39/02
Filed: 1965-10-30
Abstract: 1,123,377. Ship stabilizers. VOSPER Ltd. 25 Jan., 1967 [30 Oct., 1965], No. 46022/65. Heading B7M. Apparatus for stabilizing a ship, or other buoyant vessel, when rolling comprises a truck or trolley 10 mounted on rails 11 that are orientated athwartships and provided with stops 26 at either end, reciprocation of the truck being effected by a plurality of swash-plate hydraulic motors 12 therein that are connected in parallel to an hydraulic accumulator 13 and a piston-and-cylinder unit 14 (as shown in Fig. 2), which unit contains a pair of rams 25 that may engage with one or other of the stops 26 whenever the truck approaches either end of the rails, the motor being controlled by roll-sensing means 9 situated externally of the truck. In operation, rolling of the ship from an upright position in either direction causes actuation of servomotors (not shown) by the means 9, which motors effect appropriate operation of the motors 12, the latter being caused to operate as pumps when retardation of the truck is necessary as it approaches either of the stops 26. When operating as pumps, the motors 12 displace hydraulic fluid from the unit 14 into the accumulator 13, the fluid stored in the accumulator being subsequently returned to the unit 14 through the motors when the latter resume their driving action. The hydraulic system associated with the motors 12 also includes a source of hydraulic fluid 20, a pump 21, a second hydraulic accumulator 19, a second pump 16, a heat-exchanger 15 for cooling said fluid, a non- return valve 17, a pressure-relief valve 30, and a volume-trimming valve 18. Alternatively, the motors 12 are situated externally of the truck 10 and are connected thereto by wire ropes (32), Fig. 3 (not shown). Retardation of the truck as it approaches the end of each traverse of the ship may be partially effected by upward curvature of the ends of the rails 11. The unit 14 may be replaced by a buffer or ram (25) and an associated piston- and-cylinder unit situated at each end of the rails 11 in place of the stops 26.
Patent GB-1349015-A (GB)
Title: Ball and socket bearing
IPC: F16C23/04
Filed: 1971-10-05
Abstract: 1349015 Ball and socket joints TORRING- TON CO 5 Oct 1971 [27 Oct 1970] 46307/71 Heading E2F [Also in Division F2] A self aligning bearing has a ball 2 having a bore for receiving a shaft and a spherical outer surface 4 which engages with a corresponding surface 6 of a socket 5, the socket having a split parallel with the bearing axis to enable the socket to be sprung open to allow insertion and removal of the ball. At one end 11 of the socket, the spherical surface extends radially inwardly to provide a maximum bearing surface to resist axial loads in one direction, while the radius of the surface at the other end of the socket is sufficient to allow the ball to pass on springing of the socket.
Patent GB-1480618-A (GB)
Title: Laminated dosimetric card
IPC: G01T1/115
Filed: 1974-10-28
Abstract: 1480618 Thermoluminescence HARSHAW CHEMICAL CO 28 Oct 1974 [5 Dec 1973] 46474/74 Heading C4S [Also in Divisions B6 and H5] In a laminated card containing one or more thermoluminescent dosimeters and having a preselected identification code (see Divisions B6 and H5), the dosimeter material may be activated lithium fluoride, calcium fluoride or calcium sulfate in powder form or as single crystals, rods, ribbons or chips. In or Ag activated materials may be used for neutron detection. The dosimeter may be encapsulated in PTFE film or tape which has already been sintered to avoid sintering the phosphor. Other encapsulants are specified and a non-luminescent filler within the envelope may position the dosimeter. Dimensions are disclosed and # and γ radiation mentioned.
Patent GB-1091641-A (GB)
Title: Printed circuits and methods for producing same
IPC: H05K3/06
Filed: 1964-11-19
Abstract: 1,091,641. Printed circuits. SANDERS ASSOCIATES Inc. Nov. 19, 1964 [Nov. 27, 1963], No. 47228/64. Heading H1R. In a method of making a printed circuit comprising etching a copper-clad laminate, the circuit pattern is printed on the surface of the copper in tacky ink, and the printed surface is dusted with a thermoplastic powder, which is then heated to cause it to fuse where caught by the ink and so form an etchant resist and a soldering flux. Alternatively, resin or other flux is combined with the ink and printed on to the metal in a single operation. The ink may be of the " overprint varnish " type, or may be resin-based, and is applied to the copper by offset or letterpress printing; in the former case, the printing plate is preferably of anodized aluminium having the pattern formed thereon by a photographic process. In the case of letterpress printing, the printing-plate is preferably made of a light-sensitive synthetic plastics material. The thermoplastic powder may be a modified grade of gum rosin. In the etching step a hot spray is preferably used, to cause the resist to extrude around the edges of the conductor during etching, so preventing undercutting.
Patent GB-1443538-A (GB)
Title: Servo spool valves
IPC: F16K31/126
Filed: 1973-10-10
Abstract: 1443538 Transverse web registering SIMONVK 20 Sept 1974 [10 Oct 1973] 47279/73 Heading B8R [Also in Division G3] A servo valve for a transverse web registering system has a spool 58 moved relative to inlet port 6, exhaust ports 30, 32 and work ports 12, 14 to operate a ram 24 by a diaphragm 74 which is mounted between opposing light springs 86, 87, the latter spring being adjustable by screw 68. One side 84 of the diaphragm is connected to atmosphere while the other side 82 is responsive to the back pressure from low pressure nozzle 92 which is connected via a restriction 104 to a pneumatic pressure supply 96 that is also connected to a high pressure nozzle 102. The edge 28 of the web 26 is positioned between the nozzles and is maintained in a fixed position by the ram acting on a web sensor to correct any deviation of the web edge.
Patent GB-1402334-A (GB)
Title: Article storage and retrieval system
IPC: G11B15/68
Filed: 1972-10-13
Abstract: 1402334 Storage retrieval INTERNATIONAL BUSINESS MACHINES CORP 13 Oct 1972 [15 Nov 1971] 47307/72 Heading A4T A store having a matrix of compartments for documents, e.g. in the form of magnetic tape cartridges, microfilm, cards, or other indiciabearing documents and at least two retrieval mechanisms operating in overlapping zones to increase the operational speed is provided with means to prevent interference between the mechanisms when operating in the overlapping zones. In Figs. 1-3 an array 10 having columns of compartments in rows has retrieval mechanisms 13, 14 running on a path 11 and provided with elevators 21 operating in horizontal zones 000-549 and 450-999 respectively with the zone 18 from 450-540 overlapping. Parking areas 16, 17 are provided so that if required a single mechanism can operate over the whole array 10. To prevent both mechanisms 13, 14 being in the zone 18 at the same time mechanical stops 37, 39 are moved into their path by motors 36, 38 controlled by the positioning control 25 and limit control 29. Switches 41, 42 are closed when a mechanism enters the parking areas to render the stops inoperative. In the arrangement of Fig. 3 a single stop 47, 50 can be positioned by a motor 46 to stop both or either mechanism. In Fig. 4 an annular array 55 is provided with retrieval mechanisms 58, 59 movable vertically on a rail 57 to provide an overlapping zone 60 entry to which is controlled by sensing means 69, 70 which effect control by mechanical stops as in Figs. 1-3 or by a program control. In Fig. 5 three arrays 75-77 have retrieval mechanisms x1-x3 and additionally the arrays are inter-connected by pneumatic transfer systems 80-82 or by gravity tubes 90, 92 as in Fig. 6.
Patent GB-1364304-A (GB)
Title: Assembly of a centrifugal pump with a device for regulating the delivery thereof
IPC: F04D29/42
Filed: 1971-10-14
Abstract: 1364304 Centrifugal pumps M STAHLE 14 Oct 1971 [16 Oct 1970] 47819/71 Heading F1C Apparatus for controlling the delivery of a centrifugal pump 10 arranged to withdraw liquid from a sump 13, comprises an open-topped cylinder 12 having a tangential feed pipe 14. When maximum liquid level X is present, substantially all the liquid delivered to the pump inlet 11 is delivered via the open top of cylinder 12. As the liquid level falls, increasing amounts of liquid are drawn through pipe 14 until the liquid falls to the level of the top of cylinder 12, whereafter all liquid flows to the inlet 11 via the pipe 14. The increasing flow through the pipe 14 increases the degree of rotation of the liquid fed to the pump, thereby causing a reduction in the axial velocity flow component thereof and consequent reduction in pump delivery. The liquid in the cylinder rotates in the same direction as the pump.
Patent GB-1325808-A (GB)
Title: Open framework especially for building purposes
IPC: E04B1/24
Filed: 1971-10-15
Abstract: 1325808 Building frameworks; joining structural members FOKKER-VFW NV 15 Oct 1971 [18 Dec 1970] 48061/71 Heading E1K A building framework comprises axially aligned columns 1, 2 having respective end flanges 3 4 of rectangular or square form between which there are positioned four members 6, one or more of which may be the end portions of girders or beams 5 of the framework, the remainder being girder portions arranged to take the place of such girder ends, whereby the rectangular or square area between the flanges 3, 4 is filled and the columns may be secured in aligned relationship by bolts passed through the holes shown in the flanges 3, 4 and in corresponding flanges of the members 6. A framework composed of junctions as above with either no girder connections or from one to four girders connected therewith can thus be assembled. Holes 8 provide access to the columns 1, 2 where these are hollow, e.g. for threading cables through the columns.
Patent GB-1354946-A (GB)
Title: Synthetic wax process and product
IPC: C08F10/00
Filed: 1971-10-15
Abstract: 1354946 Ethylene telomer Waxes ESSO RESEARCH & ENG CO 15 Oct 1971 [30 Oct 1970] 48089/71 Heading C3P Synthetic waxes comprising ethylene telomers and ethylene/vinyl aromatic copolymer telomers of molecular weight 500 to 5000 and having predominantly naphthenic or aromatic end groups are prepared by polymerizing ethylene, optionally with a vinyl aromatic compound, in a solvent mixture containing 3 to 30 volume per cent of aromatic or hydrocarbyl substituted aromatic compound in a saturated hydrocarbon solvent under conditions sufficient to maintain the ethylene in the liquid phase, in the presence of a catalyst comprising (1) RLi where R is a C 1 -C 20  hydrocarbon radical, and (2) a bifunctional Lewis base selected from sparteine, N,N<SP>1</SP>-di-(C 1 -C 4  alkyl) bispidins and di-t.amines of formula R 1 R 2 N-A-NR 3 R 4  or where R 1  to R 4  are C 1 -C 4  alkyl, x is 0 to 3 and A is an optionally C 1 -C 4  alkyl substituted C 5 -C 7  cycloaliphatic ring attached to the nitrogen atoms at adjacent positions on the ring or 1 to 4 methylenic radicals each optionally having 1 or 2 C 1 -C 4  hydrocarbyl substituents. The catalyst is preferably added continuously or incrementally during the reaction. Many reactants are specified and examples describe the preparation of ethylene telomers in heptane and (1 to 3 and 8 to 11) benzene, (5) benzene, toluene, xylene and tetralin, (6) xylene and (7) benzene with catalysts formed from tetramethyethylenediamine and the corresponding lithium aryls; and cotelomers of ethylene with (12, 13, 16 and 19) α-methyl styrene, (14) t.butyl styrene, (15) styrene, (17 and 18) vinyl toluene and (20) stilbene in heptane and benzene with catalysts comprising tetramethylethylenediamine and phenyl lithium. The waxes may be used to improve the dielectric strength of cable insulation and Example 21 describes cured insulation comprising ethylene telomer wax, polyethylene and/or ethylene/ propylene copolymer, polymerized trimethyl dihydroquinoline, calcined clay, triallyl cyanurate and dicumyl peroxide.
Patent GB-1062479-A (GB)
Title: A switching or magnetic memory assembly
IPC: H01H67/30
Filed: 1963-12-10
Abstract: 1,062,479. Relay stores. C. P. CLARE & CO. Dec. 10, 1963 [Dec. 14, 1962], No. 48709/63. Heading G4B. [Also in Division H2] In a relay store the two coils 26, 28 of each relay are connected in a two co-ordinate matrix circuit. To store information, e.g. entry 10, the row 1 input switch 56 and column 0 input switch 60 are operated. Switch 56 connects a row digit 1 indicator lamp 92 across the secondary of transformer 66 and connects the winding 26 in row 1 of the matrix to a capacitor 82 charged from a rectifier 70 connected to transformer 68. Switch 60 connects 0 column lamp 90 to the secondary of transformer 66 and connects the windings 28 of column 0 to a capacitor 76 charged from rectifier 70. The record switch 118 is now closed to permit capacitors 76 and 82 to discharge through a monostable circuit 98 and close a contact unit 128 of the relay 10. The contact units of the relays complete circuits from transformer 66 to display lamps, e.g. 126. Each contact unit is retained closed by a permanent magnet until a reverse pulse is applied to its row winding from capacitor 80 by actuating erase switch 96. The row and column input switches may be replaced by semi-conductor devices and instead of controlling the visible display the contact units of the relays may be used for data translation or switching path selection.