baber/WOPTO huggingface dataset:
Patent GB-702575-A (GB)
Title: Improvements in and relating to transparent luminescent screens
IPC: H01J29/18
Filed: 1951-12-05
Abstract: 702,575. Luminescent screens. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 5. 1951 [Dec. 15, 1950], No. 28522/51. Class 39(1) A method of making a luminescent screen comprises evaporating an activator and a material selected from zinc, cadmium, zinc salts, cadmium salts, or mixtures thereof, reacting the vapour with hydrogen sulphide or hydrogen selenide, and depositing the reaction product on a heated base in the form of transparent film. A typical apparatus for carrying out the method comprises a treating chamber 1 placed in a furnace 2 heated by a source (not shown), or alternatively the chamber 1 may be heated by other means such as a heating wire. A plug 3 sealing the end of the chamber 1 supports a gas supply tube 4, an evacuation tube 5 and a conduit 6 communicating with a compartment 7 for storing solid material 8 which is gravity fed down the conduit under the control of a valve device 9 and falls into a container 10 of material such as quartz which will not react with the materials used and which is heated by a resistance wire 11. The plate 12 or other surface to be coated is placed above the container 10 and the lower end of the tube 4. As an example, a zinc activated zinc sulphide film is obtained by introducing zinc chloride containing a small amount of manganese chloride into the container 10, which is maintained at a temperature of over 732‹C. The surface 12 is heated to a temnerature of 400‹C to 600‹C and preferably from 550‹C to 600‹C. A stream of hydrogen sulphide is introduced through the tube 4 into the chamber, which is evacuated through the conduit 5. The zinc chloride vapours react with the hydrogen sulphide and produce on the surface 12 a continuous transparent film of ZnS: Zn with a trace of manganese which luminesces efficiently under cathode ray and to some extent under 3650Š and 2537A excitation. The film may be made in any thickness desired by varying the time of treatment, a useful thickness being 0.5Á to 1Á. Zinc sulphide luminescent material containing other activators may be prepared, in a similar manner. For example, copper activated zinc sulphide is obtained by mixing copper chloride or another copper compound such as copper sulphate with zinc chloride and heating the mixture to vaporization. Alternatively the activator may be vaporized in a separate heated container. Other suitable activators include silver, zinc, and aluminium, which may be introduced in the form of the elements themselves or their salts. In addition to zinc chloride, zinc bromide or zinc alone is a suitable starting material. Cadmium sulphide or zinc-cadmium sulphide phosphors are prepared in the same manner, and by utilizing hydrogen selenide instead of hydrogen sulphide, a series of selenide phosphors is obtained. The colour emitted by the phosphor depends on the activator used, and by blending discrete films of various colours or by preparing a single film with a selection of activators, all colours as well as white emission may be attained.
Patent GB-464624-A (GB)
Title: Improved metallic sash frames for windows and like bays
IPC: E06B3/16
Filed: 1936-06-13
Abstract: 464,624. Aluminium or bronze casement-window frames. DOUZILLE, L. C. E. June 13, 1936, No. 28601. Convention date, Nov. 8, 1935. Divided out of 461,061. [Class 20 (iii)] [Also in Group XXII] Some or all of the sash members of a casement or like window are made of one-piece tubular and rectangular construction and provided with solid flange extensions d, e, f of the sides for glazing and making joint with the frame. The sash is preferably made of bronze, or aluminium, or their alloys.
Patent GB-1521746-A (GB)
Title: Treatment of mixtures of finely divided materials and gases
IPC: B01J8/18
Filed: 1975-07-07
Abstract: 1521746 Contacting gases with solids; catalytic treatment of exhaust gases; air classifiers HOECHST AG 7 July 1975 [6 July 1974] 28610/75 Headings B1F, B1W, B2H and B2P [Also in Division F4] In a process for treating a mixture of a gas and particulate solid material, at least the gas is introduced tangentially into one chamber of a series of consecutively stacked chambers which are separated from each other by annular baffles which extend across the chambers thus separated so that at least part of the material flows in a ring-shaped path in a series of consecutive chambers and upwardly through the apertures between the chambers. In one aspect the residence time in the apparatus for this material is 0.5- 60 minutes, and in another aspect the chambers form part of an axially symmetrical vessel and heating or cooling takes place through the walls of the vessel: Thus in Fig. 7 monomeric vinyl chloride is removed from vinyl chloride homopolymer particles of 110Á average diameter with 2%> 300Á introduced with air at 80‹C at 3, air at 80‹C being introduced also at 19, particles of #300Á diameter are removed through 4, particle of >300Á diameter collect at the base 25 and are removed via 26, the average residence time of particles was C 10 minutes. In Fig. 8, which is a catalytic after burner, exhaust gas and catalyst introduced at 3 pass up through the chambers and leave at 4.
Patent GB-746516-A (GB)
Title: Improvements in thermosetting cement
IPC: C08L95/00
Filed: 1953-10-19
Abstract: A thermosetting cement comprises a pitch of a melting point 100-225 DEG  C., a furfuryl compound as a plasticizer, and an acid reacting catalyst, e.g. benzene sulphonyl chloride and/or hydrochloric acid, sulphur chloride, sulphuric acid and boron trifluoride complexes, for polymerizing the furfuryl compound. Specified compounds are furfural and furfuryl alcohol, singly or together, or furfuryl alcohol, phenol and formaldehyde. Polymerization may be effected at room or elevated temperature. Solid carbonaceous particles, e.g. coke flour, carbon black and acetylene black, may also be present.ALSO:A thermosetting cement is composed of a pitch of melting point 100 DEG -225 DEG C., a furfuryl compound as a plasticizer, and an acid reacting catalyst for polymerizing the furfuryl compound.  Solid carbonaceous particles may also be present.
Patent GB-320227-A (GB)
Title: Connectors, or, terminals for making a positive metallic connection between high or low tension electric cable and terminal post
IPC: H01R11/22
Filed: 1928-10-08
Abstract: 320,227. Christopher, T. R. Oct. 8, 1928. Cable and wire terminals. - A resilient end-piece of wire is attached to a lead for connecting it to a binding- post, stud, &c. In one form the wire has the end A pointed and screwed, roughened, twisted, or corrugated to enter the core of a lead. The adjacent portion of wire is then wound to a helix B surrounding the end A and adapted to engage around the lead. The wire is formed into a loop D of one or more turns to fit the binding-post &c. and the end F coiled to constitute a finger grip by which the arms E, C can be pressed together to open the loop D. In another form, Fig. 2 (not shown), the wire is carried straight from the pointed end A to the loop D and thence to the finger grip, which is formed as a U bend, and back to a second loop coaxial with the. first, the other end of the wire being then coiled around the pointed end A. A bend may be made near the loop to enable the loop to engage a terminal sunk in a recess. The wire may have a round, square, &c. section and may be insulated. Insulation may be moulded on or applied to the finished connector and may be connected to a cup-shaped covering over the loop D.
Patent GB-461364-A (GB)
Title: Improvements in or relating to loft ladders
IPC: E04F11/06
Filed: 1935-10-18
Abstract: 461,364. Loft - - ladders. BOOR, J. Oct. 18, 1935, No. 28824. [Class 20 (ii)] A loft-ladder arrangement comprises a vertical framework in the loft, a ladder with releasable means on it to engage the framework, a trap door, and means for operating the trap door, releasable means and ladder in succession or in reverse order. A rope 12 passes from the framework 9 over a pulley 13 at the bottom of the ladder L, which is preferably of the lazytong variety, up over pulleys 14, 15 on the frame, thence to a pulley 16 on the trap 21 and over guide pulleys 17 and 18 to the floor below. The pulley 13 is disposed on a catch lever 22 pivoted to the ladder at its lowermost joint 6 and the lever is weighted at 24 so that when the rope is slack the catch portion is drawn out of the path of the upper rod 10 of the ladder normally engaged by the catch to retain the ladder in its collapsed position. Rubber pads 7 are fitted to the lower joint rod of the ladder. When the ladder is collapsed and the trap shut, a pull on the rope 12, first raises the trap door, then the ladder through a short distance to release the catch, so that the ladder may then be lowered on a taut rope which retains the trap in open position. The parts are operated in reverse order by pulling on the rope 12 and slacking again after the ladder has engaged the frame to allow the trap to shut. In the Provisional Specification a catch with a spring- guarded hook aperture and cam disengaging surface is described for the ladder support to the frame.
Patent GB-1271748-A (GB)
Title: Improvements in or relating to a device for blanking-off a tube
IPC: F28F11/02
Filed: 1969-06-06
Abstract: 1,271,748. Stopping heat-cxchanger tubes. BABCOCK & WILCOX Ltd. 6 June, 1969 [8 June, 1968], No. 28896/69. Heading F2P. A device for blanking-off a tube end for example in a heat-exchanger, comprises a sealing member consisting of two dished metal washers 16, 16 which are in back-to-back relationship and which are located between the head 13 of a bolt 12 and the corresponding end of a sleeve 15 which encircles the shank of the bolt 12 and engages, at its upper end, a resilient spacer piece 17 of corrugated form. The upper end of the bolt 12 is provided with a nut 14 and washer 16<SP>11</SP>, and with key faces 18. After the device has been inserted into a tube end 11 the nut 14 is tightened while the key faces 18 are employed to prevent the bolt 12 turning, the relative movement between the sleeve 15 and the bolt head 13 flattening the washers 16 which tightly seal against the bore of the tube 11 and the bolt 15. A single dished washer 16 may be used instead of the double washer arrangement 16, 16.
Patent GB-1186319-A (GB)
Title: Sheet Collating System
IPC: B65H39/11
Filed: 1968-06-18
Abstract: 1,186,319. Sheet collator. NORFIN Inc. 18 June, 1968 [3 July, 1967], No. 28918/68. Heading B8R. [Also in Division G3] A sheet collating system is responsive to recorded information which is stepped, in synchronism with the station-to-station progression of a sheet deflector means, past a sensing means to control the number of sheets delivered at a receiving station by the sheet deflector means. As shown, a distributer 10 delivers sheets of paper one at a time from a conveyer to a deflector assembly 16 which is vertically positionable by chains 20, 22, driven by an electric motor through sprockets, not shown. During downward movement the deflector assembly is moved adjacently to a receiver 11 having a plurality of shelves on to which the deflector assembly feeds the sheets under control of a magnetic tape 32 driven by a sprocket 30 coupled to an upper drive sprocket for the chain. The recorded information on the tape is read out by a head 34 during the passage of the deflector assembly 16 from shelf to shelf and the signals, denoting the number of sheets to be delivered at the next shelf, are fed through an amplifier 36 to a cathode-ray tube memory 38. The actual passage of a sheet from the deflector assembly 16 to a shelf is sensed by a photo-cell 26 co-operating with a light source. The generated signals are fed to a sheet count circuit 40 which accumulates the count. When the count corresponds to the stored value the memory circuit 38 actuates a tripper control 42 which advances the deflector assembly to the adjacent receiver shelf. When the last shelf has been serviced an end-of-cycle circuit 42 is activated to return the deflector assembly to its initial position. Facilities are provided, comprising an encoding switch assembly 46 and encoding module 48, for recording a programme on the tape. In an alternative embodiment, the magnetic tape and drive is replaced by a punched card and reader, the stepping of the deflector assembly being initiated by the feed arrangement for the punched card.
Patent GB-672658-A (GB)
Title: Electrically heated blade
IPC: F02C7/047
Filed: 1950-11-15
Abstract: 672,658. Electricallyheated blades. BOYD, W., KELK, G. F., and CLARKE, J. E. Nov. 15, 1950, No. 28988/50. Class 39(iii) A blade for a compressor of a gas turbine engine is heated for de-icing by a unit comprising electric resistance wires 14 wound on a mica sheet 11 with recessed edges 12 covered by a helical winding 19 of glass threads and a coating of ceramic cement covering the assembly and filling spaces between the winding 19, the whole being encased in a metal structure forming the blade. The winding 19 is a spaced double winding in opposite directions providing rhombic openings, and the mica sheet 11 is perforated at 30. After baking the embedding cement, the element is placed in a mould, into which molten metal is then run to encase the blade. The ends of the resistance wire 14 at opposite ends of the element are spot-welded to lugs 18, which are partly covered by insulating sheaths 20 woven from glass threads. The cement may be an aqueous mixture of one part borax and nine parts of kaolin.
Patent GB-383382-A (GB)
Title: Improvements in apparatus for feeding or supplying cigarettes to packing machines
IPC: A24C5/356
Filed: 1931-10-19
Abstract: 383,382. Packeting cigarettes. KIDD, D. B. and MOLINS MACHINE CO., Ltd., 2, Evelyn Street, Deptford, London. Oct. 19, 1931, No. 28989. [Class 94 (i).] Containers which have been automatically filled in a cigarette - making machine are fed into position above the hopper of a packeting machine, the contents are discharged into the hopper, and the containers are fed away. As shown, a full container 2, Fig. 1, has been brought on rails 1 over the hopper 3, and the contents are discharged by withdrawing the bottom plate 2a. A succession of filled containers are moved, as shown in plan in Fig. 2, in the direction of the arrow A, by the movement of sliding bars 4 with ratchet teeth adapted to engage lugs 5a on the containers. The lefthand bar is reciprocated by a slotted lever 6 engaging a pin 7 on the bar, and operated by a hand-lever 8. The motion is transmitted to the right-hand bar by a spindle 8a, sprocket chain 14, quadrant 27 and rack 28. After discharge, the empty container 2 is moved against a stop 9 and a full container simultaneously replaces it. The container 2 is now moved along rails 24 in the direction of the arrow B by pusher pieces 23 on a conveyer 10, and is delivered to another track parallel to the first, comprising rails 11, along which it is moved in the direction of the arrow C. This track is furnished with ratchet bars 12, operated from the lever 8 by a rack 29 and quadrant 30; one pair only of ratchet teeth are used, the empty containers being pushed along in succession. The conveyer 10, pusher-pieces 23 on which engage cross-bars on the undersides of the containers, is set in motion by clutching the sprocket of the conveyer to a driven member, the drive being automatically stopped when the container is in line with the rails 11. In a modified form, the containers may be moved in a single straight path.
Patent GB-1395839-A (GB)
Title: Basic formulation for detergents and cleansing agents
IPC: C11D3/06
Filed: 1973-06-19
Abstract: 1395839 Detergent compositions with reduced phosphate content HOECHST AG & JOH A BENCKISER GmbH 19 June 1973 [22 June 1972] 28994/73 Heading C5D A detergent composition comprises (A) 2 to 40 parts by wt. of a blend of sodium tripolyphosphate and trisodium citrate in a ratio between 99 : 1 and 54 : 55 and (B) 1 part by wt. of at least one nonionic surfactant, said composition in 1% aqueous solution having a pH of at most 10. The surfactant (B) is a C 10 -C 20  saturated or unsturated fatty alcohol or mixture thereof, ethoxylated with 3 to 25 mols of ethylene oxide. Optional ingredients are (a) anionic, cationic and/or ampholytic surfactants, (b) inorganic and organic builders, (c) oxygen bleaches and activators, (d) other detergent auxiliaries. Specification 1,309,814 is referred to.
Patent GB-1352889-A (GB)
Title: Image display apparatus
IPC: H04N3/14
Filed: 1971-06-21
Abstract: 1352889 Video display panel MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 21 June 1971 [20 June 1970 23 June 1970 (2)] 29058/71 Heading H4F Video signals from a signal generator 4, Fig. 1, are displayed on an electroluminescent crossedgrid display panel 1 by means of a scanning arrangement which includes an X-line driving circuit 2 and a Y-line driving circuit 3. The X- line driving circuit 2 comprises a selector circuit 20 and a set of pulse generators 2-1 ... 2-n, the line being scanned being selected in response to horizontal sync signals from a timing generator 5. The Y-line driving circuit 3 comprises a set of brightness control circuits 3-1 ... 3-m, a set of memory registers A 1 , B 1 , C 1  ... A m  B m , C m , and an m-bit shift register a 1 , b 1  c 1  ... a m , b m , c m . Video signals from generator 4 and supplied to a sample-hold circuit 6, and the successive sampled video pulses are quantized each to one of eight levels by an A-D converter 7 and converted to a 3-bit parallel-coded video signal SA, SB, SC which is fed to the m-bit shift register, shift signals for this register being generated in generator 5 which correspond to the series of sampling signals. When a whole line of video is stored in the shift register a set signal from generator 5 simultaneously transfers all the coded video signals to the corresponding memory registers. These signals are each used as one of the input signals of a brightness control circuit 3-1 ... 3-m each of which comprises a driver Dj, Fig. 3, and 3 parallel connected AND gates GA j , GA j , GC j . Each AND gate is supplied from a generator 8 with a width-control signal CP 1 , CP 2  and CP 3  which are spaced in time within one horizontal line period t x  as shown in Fig. 4 and have a pulse-width ratio of 1 : 2 : 4 units. This quantized width modulated brightness control signals are fed to the drivers D, these signals being synthesized by the AND gates from the 3-bit parallel-coded video signals and the width control signals. In a second embodiment (Fig. 6, not shown), a 2-bit parallel-coded video signal is produced by the A-D converter, the sampled video signals of one image being divided into two field periods with the A-D conversion ratios for each field being different, e.g. a quantized level of "3" is coded as level "2" in the first field and level "1"  in the second field. The Y-line driving circuit may be simplified (Fig. 7, not shown) by replacing the memory registers and shift register stages for every other line with a switch, the brightness control signals for the drivers for these lines being obtained from the two adjacent line brightness control circuits, the switches being synchronized with the vertical sync signal of the video signal. The electroluminescent display may comprise light emitting diodes, a vacuum evaporated zinc sulphide thin film activated by manganese, copper and chlorine, or a copper coated zinc sulphide powder ZnS (Mn, Cu, Cl) embedded in plastics binder.
Patent GB-1521982-A (GB)
Title: Steering-wheels for automotive vehicles
IPC: B62D1/11
Filed: 1975-07-10
Abstract: 1521982 Steering wheels CHRYSLER FRANCE 10 July 1975 [16 Sept 1974] 29077/75 Heading B7J A steering wheel which is permanently deformable to absorb the impact energy of a driver being thrown against the wheel comprises a rim 11 connected to a central hub 14 by two spokes 12, 13 located close to one another in the same half of the wheel, the hub 14 being substantially spaced from the plane of the rim 11, and an additional loop-shaped member 16 which extends from the region of the hub at 17 to a free end 19 in the other half of the wheel. Member 16 may include two leg portions 20, 21 which are substantially continuations of the spokes 12, 13 and extend towards the plane of the rim 11 in a direction inclined to the hub axis 15. As shown, the rim is tubular and wire elements constitute the member 16 and spokes 12, 13 which are all joined by welding. In modifications, the rim and spokes, and optionally also member 16, may be formed by a single tubular or wire element. In one form, Figs. 13-16 (not shown), such a single element defines a modified member 16 of helical configuration.
Patent GB-519988-A (GB)
Title: Improvements in tables
IPC: A47C7/70
Filed: 1938-10-07
Abstract: 519,988. Brackets; tables. SMITH, P. A. Oct. 7, 1938, No. 29143 [Classes 52 (iii) and 52 (v)] A table or shelf 5 is supported in a recess 4 in a seat or other article of furniture and is brought into use by moving it into inclined position so as to release the lower edge from the recess, lowering it by sliding by means of pins 7 and slots 8, rotating it into horizontal position and moving it inwardly so that it is engaged by fixed abutments 9, 10. The face of the abutment 9 may be sloped to permit the inclining of the table on withdrawal.
Patent GB-880228-A (GB)
Title: A device for the care of the body
IPC: A46B15/00
Filed: 1959-08-26
Abstract: 880,228. Brushes. BEST, G.m.b.H. Aug. 26, 1959 [Aug. 30, 1958], No. 29199/59. Class 19. An article, preferably a brush, is provided with a marking that changes visually with the passage of time, the change giving an indication of the age or period of use of the article. The preferred embodiment consists of a tooth brush having bacteria-destroying substance-coated bristles and the mark is one or more tufts of bristle dyed with a dye which loses colour at the same time as the bacteria-destroying substance becomes ineffective.
Patent GB-331444-A (GB)
Title: Improvement in upright pianos
Filed: 1929-09-26
Abstract: 331,444. Lundholm Aktiebolag., C. A. V., and Lundholm, G. W. Sept. 26, 1929. Pianoforte keyboa.rds and cases.-In an upright pianoforte having a keyboard 3, Fig. 1, pivoted at 4 so as to fold upwardly, as shown in Fig. 2, when out of use, a panel piece 11 pivoted to the keyboard at 10 is guided by a pin 12 engaging a slotted guide 13 so as to remain substantially vertical during movement of the keyboard. The keyboard in its open position bears against fixed stops 9.
Patent GB-223069-A (GB)
Title: An attachment for broom or any other handle with receptacle for holding a brush or mop, and complete with hook for moving pictures or the like
IPC: A47L13/12
Filed: 1923-11-21
Abstract: 223,069. Hill, A. H., and Roberts, E., (trading as Roberts & Co.). Nov. 21, 1923. Handles with clamping devices for brushes and mops.-A ferrule or device a for fixing a brush or mop to a handle, and for removing and hanging pictures, has means such as a screw d for fixing a brush or mop f in the outer end, a screw b or other means for fixing the handle g in the other end, and a hook e for hanging pictures &c.
Patent GB-1268570-A (GB)
Title: Method for preparing adhesion-improved ethylene-propylene rubber composition
IPC: C08L23/16
Filed: 1969-06-10
Abstract: 1,268,570. Laminates. SUMITOMO CHEMICAL CO. Ltd. 10 June, 1969 [11 June, 1968], No. 29337/69. Heading B5N. [Also in Division C3] Laminates are formed from strips of a composition comprising a blend of 100 parts by weight of an unsaturated ethylene-propylenenon-conjugated diene terpolymer rubber with from 2 to 50 parts by weight of halogenated ethylene - propylene - non - conjugated diene terpolymer rubber containing 0.5 to 40% by weight of halogen and strips of a styrenebutadiene rubber composition.