baber/WOPTO huggingface dataset:
Patent GB-1367717-A (GB)
Title: Pulp refiner
IPC: D21D1/22
Filed: 1972-03-03
Abstract: 1367717 Conical mills; disc mills NORTON CO 3 March 1972 [9 March 1971] 10036/72 Heading B2A  A pulp refiner has two relatively rotatable refining members on one of which is mounted a freely rotatable pressure roller mechanism with the roller extending into the refining space between the members. As described the refiner may be a disc mill 10 Fig. 1 having a rotatable disc 18 bearing a plurality of radially-offset spring-urged and adjustable rollers 40, Fig. 2 or a conical mill with rollers 140 Fig. 5 arranged around the stator and similarly spring-urged and adjustable. The rollers may have an abrasive outer layer, e.g. of bonded abrasive particles, and similar abrasive surfaces may be provided on the refiner member. The rollers may alternatively be urged against the cooperating refining member by hydraulic devices.
Patent GB-1081980-A (GB)
Title: Improved pneumatic tires
IPC: C08L21/00
Filed: 1965-03-09
Abstract: 1,081,980. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO. March 9, 1965 [March 23, 1964], No. 10040/65. Heading B7C. A pneumatic tyre has carcass plies 2 of polyester cords and a tread made from a composition selected from (1) ethylene-propyleneterpolymer rubber and (2) a blend of 10 to 60% by weight cis-1,4-polybutadiene rubber and 90 to 40% of (a) SBR, (b) cis-1,4 polyisoprene or (c) natural rubber, the distance A between the carcass and tread corner 10 being less than 850 mils to avoid heat build-up. In a preferred construction, the distance A is more than 600 mils, the distance B (Fig. 1) is between 600 and 780 mils, C is between 400 and 490 mils, D is between 75 and 110 mils, and E (the tread radius) is between 7À0 and 11À0 inches.
Patent GB-1084591-A (GB)
Title: Improvements in and relating to laser apparatus and to the manufacture thereof
IPC: H01S3/093
Filed: 1965-03-10
Abstract: <PICT:1084591/C6-C7/1> The reflective surface of the pump cavity of a laser apparatus is produced by depositing a layer of Ag and an outer layer of SiO on the surface of the pump cavity which may be made of Al, brass or glass which may first be coated either chemically or electro-chemically with Ni or Cu.  The cavity is preferably coated with a layer of Cr or Ni-Cr by vapour deposition, followed by a vapour deposited layer of Cr-Ag, then a vapour deposited layer of Ag and an outer vapour deposited layer of SiO.  Alternatively the layer of Ag may be a Ag foil or an electrodeposited layer.  In the preferred method shown in Fig. 3 individual segments of the pumping cavity or the complete cavity are supported in a vacuum chamber above evaporator source 11 located on electrodes 12.  The substrates are heated by heater 15 and an evaporation rate monitor 16 and a coating thickness monitor 17 working on multiple beam interferometric techniques are provided.  A shutter 18 pivoted at 19 is located between the source and substrate.  An Al disc 21 forms a control element.  Cr is evaporated to a thickness of 400<\>rA and Ag is gradually phased into the vapour stream to form a Cr-Ag layer. The Cr evaporation is then stopped and Ag is evaporated alone to form a Ag layer 750<\>rA thick. SiO is then deposited to a thickness of 450A<\>r
Patent GB-923969-A (GB)
Title: Improvements in or relating to expansion joints
Inventor: HIRST ARCHIE JOHN
IPC: E01D19/06
Filed: 1960-03-22
Abstract: 923,969. Roadway expansion joints; bridges. METALASTIK Ltd. Feb. 17, 1961 [March 22, 1960], No. 10202/60. Classes 20(1) and 20(4). An expansion joint provided between a roadway section 10 and an adjacent roadway section or a bridge section 11 comprieses a body of rubber 21 held in a state of compression between the two sections, the body having an upper surface substantially in the plane of the upper surfaces of the sections and being shaped in cross-section so as to tend to buckle downwardly under the compressive forces, and support means under the body and supporting the body against downward buckling, the support means maintaining the upper surface substantially in the plane of the upper surfaces of the sections, at least within the normal range of expansion of the sections. In the illustrated embodiment the support means comprise a pair of cast-iron comb members 28, 29, each secured to one of the sections and having intercalating teeth 32, 33. The upper surfaces of the teeth are horizontal over the portions 40 adjacent their roots and are upwardly inclined towards their free ends over the portions 41, thereby defining a trough-like support for the rubber body 21 which widens and deepens as a result of relative movement of the combs during the initial stages of expansion of the sections 10, 11, so as to maintain the upper surface of the body 21 substantially coplanar with the surfaces of the sections 10, 11. During further expansion of the sections 10, 11, the depth of the rubber body 21 is held constant over its central portion by the horizontal portions 40 of the teeth 32, 33, whilst continued downward bulging is permitted at each side of the central portion. The rubber body contains reinforcing rods 51. In one modification the body 21 at all times remains clear of the horizontal parts 40 of the teeth 32, 33 and in another modification the body 21 at all times remains in contact with horizontal parts 40 of the teeth. In another modification the comb structures may be replaced by a non-adjustable support for the rubber body. A reinforcing rod may also be provided extending longitudinally of the rubber body in its mid longitudinal plane 52. The intercalated teeth have a clearance one from another to permit the joint to be made between road sections at a small angle to each other.
Patent GB-1174558-A (GB)
Title: A Detector for Determining the Distributon of Radioactive Materials
IPC: G01T1/164
Filed: 1968-03-01
Abstract: 1,174,558. Television. SIEMENS A.G. 1 March, 1968 [3 March, 1967], No. 10212/68. Heading H4F. To determine the distribution of rays (gamma rays) from a radio-active subject, a scintillation layer (crystal) is disposed at an aperture in a radio-active shield, e.g. a lead shield, and an image intensifier for the scintillations is disposed between the scintillation layer and a plurality of photo-electric transducers, the signals from the transducers being converted by means of a matrix circuit into a representation of the position and brightness of the scintillations which may be displayed on a storage oscilloscope and photographed. A collimator is preferably disposed in the aperture in the shield, and light conductors may couple the scintillation layer to the image intensifier which may comprise a vacuum or solid-body type intensifier. Alternatively, the image intensifier may comprise a television camera directed towards the scintillation layer, the video signals from which are applied via an amplifier to a reproducing device, the image screen of which is associated with the photo-electric transducers. Light conductors may also couple the output of the intensifier to the inputs of the transducers, a glass plate being positioned between the intensifier and the light conductors. The outputs from the transducers are preferably differentiated before they are applied to the matrix circuit to provide signals corresponding only to the rise in intensity of each scintillation. In the embodiment described, four photoelectric transducers 16-19 are connected to a matrix as shown in Fig. 3. The X and Y axis position signals for the oscilloscope 27 are obtained by means of difference circuits 34 and 42, the resulting signals being amplified and shaped in circuits 37 and 43. The Z-signal is obtained from the matrix as shown, amplified 48 and applied to the input of a pulse height selector 49 whereafter it is shaped 50 and applied to open a gate 53 which allows a second path from amplifier 48 via a discriminator 51 and a pulse shaper 52 to pass to the intensity input 54 of the oscilloscope. Selector 49 is set for signals which are characteristic of the isotope employed and which are set up in the scintillation layer.
Patent GB-141712-A (GB)
Title: Improved process and apparatus for the manufacture of imitation leather
IPC: D06N3/00
Filed: 1920-07-09
Abstract: 141,712. Foltzer, J. April 11, 1919, [Convention date]. Fabrics composed of fibrous materials united by adhesives.-In the manufacture of imitation leather, one or more laps of fibres are led on to an endless conveyer band and binding, softening, and hygroscopic substances are applied to or between the laps of the fibres which are simultaneously acted upon by a blower to produce a " felting " of the fibres. As shown, fibres 1 from a carding-machine pass over a conveyer 3 to a conveyer 2, and are subjected at 6 to the action of a blower, treated with binding, fatty, and hygroscopic substances at 7, 8, and 9 respectively, then subjected again to the action of a blower at 10, and pass between pressing-rollers 11 and calender rollers 14 to a roll 15. For producing thicker fabric,. the material is passed a number of times round the conveyer 2 or a drum, while fresh fibres are fed from the carding-machine. In another form of apparatus, a number of layers of fibres are fed simultaneously from rolls on to successive parts of an endless conveyer, the fibres of each layer being subjected to the action of a blower and treated with binding and softening or hygroscopic substances. The binding substance may be a solution of cellulose, cuprammonium oxide, glue, &c.
Patent GB-791449-A (GB)
Title: Foundation garments
IPC: A41C1/00
Filed: 1956-04-04
Abstract: 791,449. Corsets. EVEN-PUL FOUNDATIONS, Inc. April 4, 1956 [Dec. 6, 1955], No. 10306/56. Class 141 A girdle comprising inelastic front and rear panels 11, 13 (not shown) and circumferentially stretchable side panels 12 is provided with lower side panels 16 stretchable in directions parallel with their inclined upper edges 17. Behind the upper part of the front panel 11, there is secured a further inelastic panel 20 provided with pockets 28-31 for stiffeners 24-27 of the flattened wire coil type. The pockets cross at 34, 35, 36. The stiffeners 28, 31.extend the full length of their pockets, but the stiffeners 29, 30 extend only down to the points 33 so as not to cross the stiffeners 28, 31. An elastic band 14 is provided at the top of the girdle.
Patent GB-1411935-A (GB)
Title: Hydraulically actuatable apparatus for mechanically breaking up rock
IPC: E21C37/02
Filed: 1974-03-07
Abstract: 1411935 Splitting H DARDA 7 March 1974 [9 March 1973] 10306/74 Heading B5E [Also in Division E1] Apparatus for mechanically breaking up rock comprises a hydraulic piston-cylinder assembly 1, a tubular extension 18 projecting from the cylinder of the assembly, a web 22 extending transversely within the outer end of the extension to define an elongate opening 23, a piston rod 3 which reciprocates a slider wedge 26 in the tubular extension, presser checks 36 which are releasably mounted for lateral movement within the tubular extension and have bearing surfaces for complementary engagement with the surfaces of the slider wedge, and head portions 37 in the presser checks for insertion in the opening 23 so that on rotation of the presser checks the heads are locked within the tubular extension behind the transverse web. The piston rod 3 extends through a cover member 12 screwed into the end of the cylinder 1 and is loosely connected by a pin 28 to the wedge 26 which is capable of rocking about the pin relative to the piston rod. The pin also connects the rod to a guide member 9 slidable in the tubular extension 18 which is screwed into the end of the cylinder. Holes 20 are provided in the extension 18 whereby the pin 28, when aligned with the holes, can be withdrawn to permit changing of the wedge. The lower end of the extension 18 is formed with a recess, defined by a shoulder 21, for receiving the head portions 37 of the presser checks, the head portions having generally a "T" shape. The web 22 extends transversely across the recess and the elongate hole 23, when the wedge is rocked to one side, as shown in Fig. 1, permits the passage of the head 37 of one of the presser checks 36 which can then be rotated through 90 degrees about its longitudinal axis so as to be retained above the web. Semi-circular supporting plates 42, 44 are disposed above and below the head portions for absorbing axial forces of the presser checks. The arrangement permits easy replacement of presser checks 36 with those 36<SP>1</SP> of a larger size. The presser checks are resiliently held against the wedge by a spring 47 which is rotated to the position shown in Fig. 2 during replacement of the presser checks. In another embodiment, the lower supporting plates are somewhat roof-shaped and the spring 47 is replaced by resiliently urged L-shaped pins.
Patent GB-290023-A (GB)
Title: Improvements in photographic cameras
IPC: G03B19/04
Filed: 1927-04-14
Abstract: 290,023. Newman & Guardia, Ltd., and Peacock, J., A. April 14, 1927. Cameras, @oll-holding devices for.-To facilitate loading, the spool-holders are mounted on intergeared pivoted arms so that they may be moved together into and out of the spool casing or camera back. In the form shown, the spools are mounted between extensions 5 of levers 1, 2 pivoted at 3, 4 on each side of the casing or back, and crossconnected by bars fitted with rollers 9 over which the film is drawn. The casing or back is closed in light-tight manner by two hinged flaps 12, 13 of which 13 carries a slotted arm 14 engaging a pin 15 on one of the extensions 5, so that when the flap 13 is opened the levers 1, 2, which are geared together at 10, 11, are moved out from the casing or back into position for easy loading. Linkage 16, 18 arrests the outward movement of the other flap 12. Springs 20 in the flaps 12, 13 press the spool flanges lightly against the supporting projections 6, 7, 8 on the holders 5, and spring-pressed pads therein maintain the film flat in the focal plane. On closing the flaps, the spool holders are moved back into the casing or back, and a pin 23 on the flap 12 snaps over the nose of a pivoted spring-controlled catch 25 to maintain the parts in closed position. This catch may be released when desired by withdrawing the film winding- key slightly in order to cause a gear 30 thereon to mesh with a toothed lever 29 connected to the catch 25, and turning the winding-key slightly in the reverse sense.
Patent GB-566525-A (GB)
Title: Improvements in cooking apparatus
IPC: F24C15/32
Filed: 1943-06-26
Abstract: 566,525. Cooking ovens. SPOONER, W. W. June 26, 1943, No. 10369. [Class 126] In a solid fuel, gas, or electric cooking oven 1 fitted with a fan for circulating the oven atmosphere, the fan 5 and its driving motor 3 are detachably mounted on the existing oven door 2, or this door may be removed and replaced by a substitute door in which the fan and motor are incorporated. The fan is mounted in a wire cage 6 and the oven is provided with a baffle wall 7. the back member of which is formed with nozzle-like perforations 8 which direct the circulating atmosphere at high velocity diametrically across the goods 9 back to the fan.
Patent GB-910844-A (GB)
Title: Improvements in trays for soft fruit
Inventor: WAGGETT ROBERT WILLIAM
IPC: B65D5/00
Filed: 1960-03-24
Abstract: 910,844. Collapsible trays. NEW MERTON BOARD MILLS Ltd. Feb. 13, 1961 [March 24, 1960; Sept. 14, 1960], Nos. 10505/60 and 31667/60. Class 18. A collapsible tray formed from a blank has triangular sockets at its corners for the insertion of upstanding posts, the sockets being formed as an integral part of the blank. The sockets 13 are formed from the inner walls of double side walls 5, 6 which are glued together. To erect the box flaps 10, 12 are turned inwards and sandwiched between walls 3, 4, walls 4 being cut back to form ears 7 so that flaps 10 form the sockets 13. Wooden posts 14 inserted into sockets 13 then bear against ears 7 to prevent the tray from collapsing. Apertures 17 cut in bottom 1 are covered by flaps 16 hinged to the wall 4. When a number of trays are stacked the upper ends of the posts 14 enter the apertures 17 to bear against the flaps 16 whereby the trays are aligned and positively held in position one above another. Alternatively diagonal slits only are formed across the corners to form triangular bearing surfaces for the supporting posts; flaps 16 may then be omitted from the blank.
Patent GB-866164-A (GB)
Title: Method and means of forming cavities in cast materials such as concrete
IPC: B28B7/30
Filed: 1957-04-01
Abstract: 866,164. Moulding cavities in concrete &c. FELDMANN, A. April 1, 1958 [April 1, 1957; June 28, 1957 ; Aug. 20, 1957 ; Dec. 27, 1957], Nos. 10540/57, 20457/57, 26238/57 and 40162/57. Class 87(2). [Also in Group X] A device for forming a cavity in cast material comprises a first part or former 2 which is of elastic material and is shaped to form an undercut cavity in the cast material when secured to a mould wall 3, and a second part 4 having means for attachment to the former 2 and serving both to secure the former to wall 3 and to provide means for extracting the former from the cavity formed thereby. The rubber former 2 surrounds a threaded sleeve 7 and is fastened to wall 3 by a bolt 4 threaded into sleeve 7. The concrete &c. is cast in the mould, and the bolt is unscrewed, the mould wall removed, the bolt replaced and used to pull out the former 2 by deforming it. The former 2 may have holes 8 to increase its flexibility or have a central part of more spongy material. The sleeve may be replaced by a nut with a cap over the bolt threads and the bolt may be replaced by a quick release locking device, Figs. 3A, 3B (not shown).
Patent GB-218618-A (GB)
Title: Improvements in steering gear for motor-propelled trucks
IPC: B62D1/12
Filed: 1924-04-29
Abstract: 218,618. Bleichert & Co., A. July 2, 1923, [Convention date]. Steering - gear. - A motor truck is steered by movement of the driver's platform b which is pivoted at c and connected by linkage d to the steering- shaft a.
Patent GB-1001629-A (GB)
Title: Improvements in or relating to actuating mechanisms, more particularly for fluid flow control valves
Inventor: HORE DONALD LIONEL
IPC: F16K31/528
Filed: 1963-03-18
Abstract: 1,001,629. Valves; cam mechanism. ROTORK ENGINEERING CO. Ltd. June 18, 1964 [March 18, 1963], No. 10608/63. Headings F2K and F2V. An actuating mechanism, particularly for rotatable valves, comprises a threaded spindle 11 which is moved axially by the mechanical turning of the actuator 13. The axial movement causes rollers 26 of a cross-head 24 carried by the spindle to move in helical grooves 27, and so rotate the cross-head. Inner rollers 28 also carried by the pin 25 of the cross-head slide in axial slots 29 in a rotatable casing 30 causing this to rotate with the cross-head. The casing 30 is joined by a shaft 34 to a rotary valve closure member. The grooves 27 may be of various helical shapes according to the rate of movement required of the closure member or its equivalent at any time during rotation. Specifications 842,581, 865,565 and 939,353 are referred to.
Patent GB-106678-A (GB)
IPC: B22D13/04
Abstract: 106,678. Davis, J. C. June 1, 1916. Cast-iron and scrap processes. - A process of casting in which molten metal and a modifying material are brought together in predetermined proportions immediately prior to entry into the mould, is described with reference to casting car wheels in a centrifugal machine from steel and manganese in proportions varying from the rim to the hub. The metal from the ladle passes through a funnel 19, which delivers in a steady constant stream, and manganese is supplied from a container 32 by an air biast introduced at 36. The funnel &c. are mounted upon a compound truck for traverse over a series of moulds and the stopper 41<a> and the air valve 37 are connected for simultaneous operation. The pouring block is provided with a refractory lining 60 which also acts as a core and is seated in a print 61.
Patent GB-539345-A (GB)
Title: Improvements in the overhead equipment of electric traction systems
IPC: B60M1/18
Filed: 1940-06-21
Abstract: 539,345. Overhead conductors for electric traction. BRITISH INSULATED CABLES, Ltd., LONDON PASSENGER TRANSPORT BOARD, BROOM, T. C., and POWELL, H. J. June 21, 1940, No. 10673. [Class 104 (iii)] In a section insulator &c. for an overhead conductor, of the kind in which a collector 7 passes from a mains conductor 5 on to an insulating guide member 2, the collector, during said passing, provides an alternative path for the current before it leaves 5, by operating a switch, 14, 17 which is normally open, to close the circuit from 5 to an auxiliary conductor 58 on the insulator 3, 4, and by bridging 5 and 58, the switch being again opened after the collector has left 5 and before it leaves 58, so that arcing takes place between the sets of contacts 19 ... 23 or 19a ... 23a of the switch. The switch is operated by 7 through a roller 56 on its path, a rod 38 and a lever system 41, 42 which rocks the switch arms 14, 17 on their pivots 15, 18. A spring 49 opens the switch. Specification 495,224, [Group XXXVI], is referred to.
Patent GB-289024-A (GB)
Title: Improvements in or relating to means for ensuring the feedwater supply in steam boiler plants
IPC: F22D1/32
Filed: 1928-04-11
Abstract: 289,024. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). April 20, 1927, [Convention date]. Feedwater, supplying. - In the event of the failure of the normal supply of water to a boiler through preheaters e, f and the feed pump A, the boiler is supplied directly with cold water by a pump B. Condensate from the condenser pump b flows either to the intermediate pump d before the preheaters or to the cold feed pump B. In the case of a prolonged stoppage of the preheating system, the feed pump A may be used to supply cold water, which is drawn through a byepass pipe i across the preheaters.
Patent GB-127752-A (GB)
Title: Self-contained Combination Apparatus for the Production of Powders from Milk and other Liquids.
Inventor: ELLIS GEORGE WILLIAM JAMES
IPC: A23C1/01
Filed: 1918-06-29
Abstract: 127,752. Ellis, G. W. J., and Gardner, C. E. June 29, 1918. Film evaporators; milk, concentrating.-Milk or like liquids to be dried to powder are first concentrated in apparatus in which they flow over shelves heated by hot water, and finally dried on the surface of a heated cylinder provided with a special feeding and heating arrangement. Fig. 6 shows the preliminary concentrating-device consisting of a vessel A provided with a water jacket G and heated by gas jets H and formed with internally projecting inclined shelves, over which the milk is thrown by disks J carried on a hollow rotary shaft, up which the milk is drawn by a screw conveyor L. Air and vapour are withdrawn from the vessel A by a. fan; &c., openings M being formed in the plates J to facilitate their passage. The milk leaves the vessel A through a pipe R looped as shown, so that a certain depth of milk is maintained in the bottom of the vessel, a branch with a stop-cock being provided for use when it is desired to empty the vessel completely. From the pipe R, the milk passes to the surface of the heating cylinder V, Fig. 4, through an adjustable tubular valve T constructed as shown. The thickness of the layer of milk is regulated by an adjustable knife Z, and the dried milk is removed by a scraper. Perforated casings are arranged round the lower portion of the cylinder V for removing vapour. When a low drying temperature is desired, the cylinder V is directly heated by gas jets. For higher temperatures, an internal oil jacket is provided, also heated by gas jets; and to maintain the pressure in the jacket constant, it is connected to a tank, the level in which is regulated by a ball valve. The dried milk is removed by conveyers to mixing, sifting, and bagging-machinery.