baber/WOPTO huggingface dataset:
Patent GB-1444800-A (GB)
IPC: B65H75/10
Filed: 1973-12-07
Abstract: 1444800 Helical compression springs R L BURCHETTE 7 Dec 1973 [21 Dec 1972] 56934/73 Heading F2S [Also in Division B8] An axially compressible tubular element e.g. a dye spring comprises a pair of end rings 12, 13, a helical lead 20 between the rings 12, 13 and connected thereto, and a plurality of members 30 perpendicular to the rings 12, 13 and secured at opposite ends to the adjacent portions of the lead 20, the members 30 being spaced from all adjacent members both axially and helically and serving to limit axial compression of said element. The members 30 may be provided with slots and the helical lead 20 with mating projections whereby radial distortion is avoided. A plurality of helical leads with the same pitch may extend between the rings 12, 13. As an alternative at least one intermediate ring may be provided with the helical lead extending between an end ring and an adjacent intermediate ring and between adjacent intermediate rings where there are more than one. As a further alternative, a plurality of helical leads may extend between the end rings or between an end ring and an intermediate ring, the leads being of opposite pitch, and posts 328 being provided at the crossing points to limit the axial compression (Fig. 8). The tubular element is preferably integrally moulded from plastics material, e.g. polypropylene. The helical lead 20 is preferably of trapezium-shaped cross-section and the lead 20 may be provided with a thickened cross-section adjacent the members 30. In the case that a filter paper is placed on the dye spring prior to winding of the yarn thereon, means, e.g. projections 27 may be provided to prevent the paper from slipping. The tubular element may be used as a spring or shock-absorber.
Patent GB-1126890-A (GB)
Title: File cabinet
IPC: A47B51/00
Filed: 1966-12-23
Abstract: 1,126,890. Filing cabinets. J. E. BARROW. 23 Dec., 1966, No. 57725/66. Heading B6E. The drawers 100, 200, 300, 400 of a filing cabinet 1 are formed with a rear flange 120 so that after the drawer has been pulled out horizontally it may pivot downwardly about a hook 221 on the front of drawer or cabinet below. The hook 221 is formed from the upper front of the drawer and has a depending portion 222 which provides the drawer handle. The papers are retained by a pivotal keeper plate 117 spring urged to hold the papers when the drawer is either horizontal or vertical. Each drawer has rear stops and bearing surfaces, e.g. 231, 232, 233, 234 and when the drawer is hanging from the hooked handle of one drawer it is stabilized by the handle of a neighbouring lower drawer.
Patent GB-1449839-A (GB)
Title: Electrodeposition
IPC: C09D175/00
Filed: 1973-12-14
Abstract: 1449839 Electrodepositable resins PPG INDUSTRIES Inc 14 Dec 1973 [22 Dec 1972] 57945/73 Heading C3B A synthetic resin contains quaternary ammonium, phosphonium or ternary sulphonium groups, blocked isocyanate groups and OH groups. The resins are stable in the presence of water at room temperature but cross-link at elevated temperatures by reaction between the isocyanate and hydroxyl groups. The resins are prepared by: (A) reacting an epoxy resin containing hydroxyl groups with a semi-blocked polysiocyanate, containing an average of about one free NCO group per molecule; (B) reacting the intermediate, which contains free epoxy groups, with amine salts, phosphine-acid mixtures, or sulphide-acid mixtures so as to introduce quaternary ammonium or phosphonium groups or ternary sulphonium groups. The final product may be free of or may contain epoxy groups. The resins may be dispersed in water with conventional additives for electrodeposition in which process the object to be coated forms the cathode of the circuit.
Patent GB-1176886-A (GB)
Title: Improvements in or Relating to Screen Printing Stencils and the Manufacture thereof
IPC: B41C1/14
Filed: 1967-12-20
Abstract: 1,176,886. Printing-apparatus. BALCO FILTERTECHNIK G.m.b.H. 20 Dec., 1967 [21 Dec., 1966], No. 57986/67. Heading B6C. A screen-printing stencil 1 is formed integrally of plastics material with the mesh openings 5 forming the design separated by bridges 4 of the plastics material, said bridges being connected to the closed regions 3 of the stencil. The bridges may be curved on one face and flat on the other and the mesh openings may vary in shape and/or size. Two or more stencils may be combined by superimposing them with the bridges staggered or rotated relative to one another and joined together either before curing &c. is complete or by welding. The stencil may be produced from a polyamide or any suitable hot or cold-setting plastics material in a die (6), Fig. 2 (not shown), by casting, compression or injection moulding techniques. The die is produced by machining, electroforming, or electrolytic etching. The die (6) comprises an electroformed sheet (9) having perforations (10) located on a base-plate (8). Alternatively, the design may be applied to the plate using photographic techniques followed by etching. A parting agent is applied to the die before moulding. The stencil is formed of a material which is sufficiently flexible to allow it to be removed from the die after any material protruding above the die top surface has been filed away. The stencil may be moulded to conform to the concave &c. shape of the article to be printed.
Patent GB-1422127-A (GB)
Title: Analogue to digital converters
IPC: H03M1/00
Filed: 1972-12-15
Abstract: 1422127 Analogue-to-digital converter BRITISH BROADCASTING CORP 7 Dec 1973 [15 Dec 1972] 58079/72 Heading H3H In an analogue-to-digital converter having a coarse stage 12 and a fine stage 20 responsive to the quantizing error of the first stage, if over- or under-flow of the fine stage occurs the coarse code is corrected by adding or subtracting 1 as appropriate and the fine code is folded back by subtracting or adding the code value at which it overflows (e.g. 16 for 4-bit binary).
Patent GB-1194239-A (GB)
Title: A Sleeve Coupling for Reinforcing Rods.
Inventor: GUNTERMANN HANS
IPC: E04C5/16
Filed: 1967-12-21
Abstract: 1,194,239. Casting composite joints; welding by fusion. ELEKTRO-THERMIT G.m.b.H. 21 Dec., 1967 [24 Dec., 1966]. No. 58136/67. Headings B3F and B3R. [Also in Division F2] A coupling for steel reinforcing rods 3, 4 comprises steel adaptors 1, 2 fixed to the ends of the rods and surrounded by a steel sleeve 5 for the reception of an aluminothermically produced metal which is keyed to the inner surface of the sleeve and the outer surface of the adaptor. The adaptors 1, 2, with internal thread-like configurations, are screwed on to the rods 3, 4. The coupling connects precast concrete railtrack bearing slabs 21, 22 traversed by the rods 1, 2 which transmit stress through dish-shaped anchor plates 24. A closure plate 30 of a crucible 23 is melted by molten steel from an aluminothermic composition 28 and the stee then fills the cavity between the sleeve and the adaptors through a part 6. Only one reinforcing rod (15) may be engaged within an adaptor body (16) surrounded by a sleeve end of a coupling (18), the other rod being engaged directly in a blind end of the coupling. The adaptors may be caps (10, 11) screwthreaded on the rod ends, with heads projecting into the sleeve (12).
Patent GB-1243909-A (GB)
Title: Improvements in or relating to treatment of cocoa beans
IPC: A23G1/02
Filed: 1969-12-05
Abstract: 1,243,909. Treating cocoa powder; cocoa preparations. CARLE & MONTANARI S.p.A. 5 Dec., 1969 [27 Sept., 1969], No. 59591/69. Headings A2B and A2Q. Cocoa powder, which has been subjected to chemical neutralisation and colour intensification by treating it with an alkaline solution, is subjected to simultaneous spreading, compression and drying by being passed between one or more pairs of contacting hollow cylindrical rollers which are heated, one of the rollers of the or each pair rotating at a higher speed than the other to effect the spreading action, the resulting powder, in the form of small flakes, being then pulverised in a grinding mill. The neutralising is preferably effected by kneading natural cocoa powder with a neutralising alkaline solution at a controlled temperature, using a cavity mixer.
Patent GB-1354337-A (GB)
Title: Solid state electrochemical cells of the ag i2 type
IPC: H01M10/36
Filed: 1971-12-22
Abstract: 1354337 Solid state Ag-l 2 , cells CONSIGLIO NAZIONALE DELLE RICERCHE 22 Dec 1971 [15 June 1971] 59642/71 Heading H1B The electrolyte of a rechargeable Ag-I 2  type cell comprises a mixture of silver iodide and a polyamine iodide and the cathodic depolarizer in contact with the electrolyte comprises a mixture of molecular iodine, carbon and a polyamine iodide, which iodide may be the same polyamine iodide as is used in the electrolyte mixture. The polyamine iodides are preferably of the diamine QI 2  type or of the triamine QI 3  type when Q is an organic ammonium cation. For diamine iodides maximum specific conductivity is obtained with a molar ratio of: QI 2  : AgI 1:12 and thus the formula for the electrolyte is of the QAg 12 I 14  type. For triamine iodides the corresponding ratio is 1 : 22 and the electrolyte formula is of QAg 22 I 25  type. A preferred diamine iodide is hexane 1,6-bistrimethylammonium iodide called hexamethonium iodide (ExI 2 ) having the empirical formula C 12 H 30 N 2 I 2 . A cell using this polyamine iodide may have these components: A preferred triamine iodide is octamethyldiethylentriammonium iodide (TrI 3 ) having the empirical formula C 12 H 32 N 3 I 3.  A cell using this polyamine iodide may have these components: The Specification lists other examples of diamine iodides. To reduce the contact resistance between the electrolyte and silver anode, the surface of the anode may be amalgamated; alternatively, the silver anode may be adhered to the electrolyte by an electrolysis process. Fig. 1 shows a battery consisting of a number of cells (only one shown) stacked within an insulating case 1 and clamped under pressure by threaded end contacts 2. Each cell comprises discs of the following materials: graphite 3 which does not participate in the electrochemical reaction; cathodic mixture 4 of powdered graphite, hexamethonium iodide and molecular iodine; electrolyte 5 of hexamethonium iodide and silver iodide; silver anode 6. The electrolyte is made by fusing in vacuo and then crystallizing in vacuo a stoichiometric mixture of AgI and the polyamine iodide, the crystals being reduced to powder and then subjected to pressure of about 1000 Kg./cm.<SP>2</SP> to form a sheet. The cathodic mixture is deposited on the electrolyte by heating the mixture, spreading it uniformly on the electrolyte surface and allowing it to solidify.
Patent GB-1403319-A (GB)
Title: Anti-microbial preparation
IPC: A61K31/535
Filed: 1973-12-28
Abstract: 1403319 Anti-microbial preparations COMMERCIAL SOLVENTS CORP 28 Dec 1973 [12 April 1973] 59990/73 Heading A5B [Also in Division C2] Anti-microbial preparations effective against both Gram-positive and Gram-negative bacteria and fungi comprise a mixture consisting of hexetidine (5-amino-1, 3-bis(2-ethylhexyl)-5- methyl hexahydropyrimidine) and 4, 4'-(2- methyl,2-nitrotrimethylene)dimorpholine (P- 1483) optionally present as a dispersion in an emulsion, cream, lotion or ointment.
Patent GB-1293580-A (GB)
Title: Liquid development electrophotographic apparatus
IPC: G03G15/10
Filed: 1969-12-09
Abstract: 1293580 Liquid developing apparatus RICOH K K 9 Dec 1969 [27 Dec 1968] 60053/69 Heading G2H Concentrated developer is supplied, from a reservoir 7 to a developing tank 1 to replenish developer used, under the control of a float 10 which actuated a micro-switch 12 in circuit with an electromagnet 13 which actuated a valve 9. In a modification, Fig.2 (not shown), developer (24) in a tank (24) is agitated by a cam actuated stirrer 33. Developer is replenished from a tank (22) through an air bleed supply valve (21) to an intermediate tank (37) linked to a float controlled valve (46).
Patent GB-1220530-A (GB)
Title: Mechanical seal assembly
IPC: F16J15/34
Filed: 1968-12-18
Abstract: 1,220,530. Rotary shaft seals. BORGWARNER CORP. 18 Dec., 1968 [17 Jan., 1968], No. 60265/68. Heading F2B. In a mechanical seal for a rotary shaft 13, e.g. a pump shaft, where it extends through a housing 11 and comprising an axially movable non-rotary sealing ring 55 urged into facial sealing contact with a rotary sealing ring 27, lubricant is supplied to the sealing faces 59, 61 of the rings 27, 55 by means including fluid passages 65 which extend through the ring 55 and are connected by means of a coupling ring 67 to a flexible pipe 72 fixed to the housing 11, the coupling ring 67 encircling the ring 55 and being sealed thereto by means, e.g. 0-rings 68 and 69, surrounding the passages 65. The ring 27 is carried by a ring member 25 which is keyed to the shaft and sealed by an 0-ring 26 to a shaft sleeve 14, the ring 27 being sealed to the member 25 by an 0-ring 28 and driven therefrom by a pin 29. The ring 55 is housed in a ring 47 slidably mounted in an outer flange 41 secured with an inner flange 39 to the housing 11. Lugs 62 on the ring 47 engage slots 63 in the ring 55 which is sealed to the ring 47 by U-packing 56. Springs 58 carried by the ring 47 compress the packing 56 and urge the ring 55 against the ring 27, the amount of spring- loading being adjustable by screws 51. The flexible pipe 72 is coiled around the ring 67 and connects a passage 71 in the ring 67 with a passage 73 in the ring 47 which is sealed to the flange 41 by 0-rings 48 and 49. The ring 67 is secured by a set-screw 70. Lubricant under pressure is fed when required, particularly after a period of rest, to an inlet 75 in the flange 47 and flows to the sealing faces 59, 61 through recess 74, passage 73, pipe 72, passage 71, passages 65 and grooves 64. Cooling fluid is circulated by vanes 76 on the rotary member 25; the fluid being cooled in an external heat exchanger and discharged from and returned to the seal through bores 78 and 79, respectively in the flange 39. Labyrinth seal grooves 24 are formed on the sleeve 14.
Patent GB-1256437-A (GB)
Title: Chain conveyor drive sprocket assembly
Inventor: DAWSON GORDON BERTRAM
IPC: F16D1/08
Filed: 1969-12-13
Abstract: 1,256,437. Chain wheels. DOWTY MECO Ltd. 23 Nov., 1970 [13 Dec., 1969], No. 60897/69. Heading F2Q. A drive sprocket assembly for a chain conveyer consists of a pair of one-piece sprockets 12, 15 splined or keyed to stub drive shafts 8, 9 and separated by a spacer -sleeve 26, the sprockets being provided with pairs of dogs 22, 24 engaging recesses 35, 36 in the ends of sleeve 26. The latter is split along a diametral plane, the two portions being secured by bolts (31), Fig. 2 (not shown), and is provided with recesses 37, 38 engaging end flanges 23, 25 on -the sprockets.
Patent GB-1340688-A (GB)
Title: Cine projectors
IPC: G03B21/00
Filed: 1970-12-23
Abstract: 1340688 Cine projection apparatus AGFA-GEVAERT A G 23 Dec 1970 [23 Dec 1969] 61263/70 Heading G2E A cine projector includes a carrier 23 for receiving a number of cassettes 7 whose contents are in turn projected and each projected film 17' is taken up on one of the coaxially mounted spools 9, 10. Whilst the film 17' is being projected the other of the spools 9, 10 is engaged in the rewinding of the immediately preceding film into its respective cassette on the carrier 23. The spools 9, 10 are pivotable about a second axis so that when projection and rewinding have been completed in one position the spools 9, 10 are rotated through 180 degrees to move the spool which has just  received a film into the rewind position and the emptied spool into the position to receive the next film to be projected. As shown in Fig. 4 this may be performed automatically by means of a spindle 12, lying along the second axis, powered from a drive mechanism 27. Rack 23a and pinion 24 co-ordinate the pivoting of the reels 9, 10 and the movement of the carrier 23 through a distance equal to the thickness of a single cassette. Arms 25, also on the spindle 12 help displace the film from the picture gate (not shown) when the reels 9, 10 are pivoting. The drive mechanism 27 also incorporates circuitry, Fig.5 which acts in response to the light from a lamp which after passing through the film 17' falls on photoresistor 32, and switches 35, 38. As shown in Fig. 5 there is a retarding circuit 42, switching circuit 40 and drive circuit 41. The switching circuit acts in response to the signal from the photo-sensitive device 32 such that the very clean or darkened tail section 17 of the film 17' modifies the signal and changes the state of a first tripping stage (i.e. transistors 43, 44, 45) so that electromagnet A is energized. The retarding circuit 42, however prevents the switching circuit 40 from functioning in response to a similar leader on the film which is darkened or transparent like the tail section. The initial passage of a film being projected closes switch 35 and opens switch 67. Capacitor 57 then charges up and eventually another tripping stage (i.e. transistors 53, 54, 55) change state to energize electromagnet B and hence close the switch 52' in the circuit 40. Energization of the electromagnet A closes switch 46' in the drive circuit 41 and so energizes electromagnet 63 which causes contact 64 to close switch 65 and cause motor 66 to rotate the spindle 12. Since the film will cease to pass the photo-resistor 32 before the spindle 12 has turned through 180 degrees, so causing switch 4 to open, switch 38 engaging cam 39 on the spindle 12 ensures the completion of the spindle's rotation through this angle. In another embodiment Figs.1, 2, 3 (not shown) the pivoting of the reels 9, 10 is performed manually.
Patent GB-1247900-A (GB)
Title: A device for opening folded articles
IPC: B65H5/30
Filed: 1968-12-31
Abstract: 1,247,900. Opening folded signatures; inserting. FERAG FEHR & REIST A.G. 31 Dec., 1968 [2 Feb., 1968], No. 61892/68. Heading B8R. A device for opening folded signatures comprises at least one set of grippers holding the signatures therebetween at a point remote from the fold, the grippers of each set being displaceable relative to one another in the plane of the signatures when closed and a set of jaws gripping the parts of the signatutes exposed as a consequence of the relative displacement. Fig. 1 illustrates an opening sequence for a newspaper 1 comprising two sets of pages 3, 4 folded at 2; grippers 7, 8 provided with points 10, penetrate at least some of the pages in position marked II and then gripper 8 is moved in the direction of arrow 20 to displace the set of pages 4 relative to set 3, position III. At the same time, jaw 14 pivots to engage the edge 5 of the set of pages 3. The grippers 8 return to their original position, but the edge 6 of set of pages 4 rides over the shaped back 17 of jaw 14, positions IV, V; the grippers 7, 8 separate and stay clear of the newspaper which is finally opened by sets of jaws 11, 16, set 11 being comprised of the above-mentioned jaw 14 and a co-operating jaw 12 while set 16 consists of jaws 9, 15 (also Fig. 2, not shown). The sets of jaws 11, 16 may be suspended from chains forming part of a delivery mechanism where enclosures are slid laterally into the newspapers once they are opened (Fig. 3, not shown), the enclosures being suspended from a co-operating gripper chain. Alternatively, the newspapers may be fed in an overlapping stream to high-speed conveyer belts which separate the individual wires. The grippers 7, 8 with their points 10 and the sets of jaws 11, 16 are moved parallel and synchronously with the belt (Fig. 4, not shown).
Patent GB-1284599-A (GB)
Title: A process for the readout of coded symbols
Inventor: ROTHERY JOHN L
IPC: C09D5/22
Filed: 1969-12-30
Abstract: 1284599 Photo-luminescent code reading AMERICAN CYANAMID CO 30 Dec 1969 [10 Jan 1969] 63368/69 Heading G1A A code on an object or tape in the form of a plurality of different photo-luminescent materials which convey their code by their presence or absence is read by irradiating the coded symbol with brief flashes of short wave, preferably ultraviolet radiation imaging the photo-luminescence on to a photo-detector, sequentially limiting radiation to that of a single code component by for example a filter wheel which is rotated to interpose successively a filter passing the wavelength of only a single component, developing synchronizing signals in conjunction with the sequential limitation for directing the photodetector signals, amplifying and temporarily storing the signals, and decoding after a full sequence into forms corresponding to the symbols represented by the code for display or print out. Photo luminescent materials for a four element code may be dysprosium, terbium, samarium, and europium and the electrical circuit may be such that circuit response to short time-constant fluorescers such as optical brightness in the background material is avoided. The code area of a tape 62, Fig. 1 is irradiated by a flash of UV from a Xenon source 11 through lenses 11, 15, filter 12 and aperture 60, the resulting photoluminescence being directed on to a photo-multiplier 26 through a filter X on a rotating disc 25. The synchronization is effected by magnets 30 on the rotating filter wheel adjusting reed switches one being provided for each filter and one for triggering the flash. The circuitry includes threshold devices and pulse shapers and the signals are stored in flip-flops to be read into a decoding matrix on completion of a filter revolution. The source 11 is pivotally mounted together with its lenses so that objects other than a tape and at a greater distance can be irradiated through aperture 59.
Patent GB-2029169-A (GB)
Title: Facsimile communication system
IPC: H04N1/417
Filed: 1978-08-07
Abstract: Binary signals from picture elements arranged in rows and columns are successively applied to a group of shift registers and suitably time-delayed under the control of clock pulses so that the signals from a plurality of reference picture elements for each object picture element simultaneously enter two logic circuits 22, 24 providing predicted element values in accordance with respective algorithms suited for a high and low scanning resolution. That circuit for the scanning resolution used delivers the predicted value to an exclusive OR gate 20, also supplied with the actual signal from the same object element, and providing an error signal run length encoded for transmission. Generalized prediction algorithms are disclosed. <IMAGE>
Patent GB-2011877-A (GB)
Title: Improvements in or Relating to the Treatment of Effluent
IPC: C02F3/12
Filed: 1978-11-15
Abstract: Apparatus is disclosed for the treatment of effluent by the so-called activated sludge treatment process comprising an aeration vessel (10) and an inclined plate separator (14). Incoming feed to the aeration vessel displaces liquid through the inclined plate separator and suspended solids are deposited for entrainment in a liquid current for return to the aeration vessel. <IMAGE>
Patent GB-2018575-A (GB)
Title: Seat belt anchorage
IPC: B60N2/36
Filed: 1979-04-06
Abstract: An anchorage device for a seat belt of a movable seat of a vehicle, in particular a rear bench seat pivotable about axis (2) comprises a striking plate (7) pivotally mounted on the frame of the seat, and carrying part (3a) of the seat belt. When the seat is moved from a raised inoperative position into a lowered position, the striking plate (7) automatically engages, and is locked to, a fixed mounting (12) on the floor of the vehicle. A release lever (16) permits release of the striking plate (7) from the mounting (12) when it is required to raise the seat. <IMAGE>