baber/WOPTO huggingface dataset:
Patent GB-346487-A (GB)
Title: Improvements in or relating to navigation instruments
IPC: G01C21/20
Filed: 1930-01-27
Abstract: 346,487. Sighting-apparatus for aircraft. SMYTH, V. S. W., 99 Squadron, Royal Air Force, Upper Heyford, Oxfordshire. Jan. 27, 1930, No. 2767. [Class 97 (ii).] A sighting device in which an image of the ground is projected on a screen has a grid which is capable of angular movement in a plane parallel to the screen and comprises a number of lines extending across a substantial area of the projected image. In one form, a lens 13 attached with a washer 14 of suitable thickness to a hollow conical shell 10 forms an image of the ground on a strip of ground glass 18 mounted in the shell with its edges parallel to the fore and aft line of the aircraft. Beneath the screen 18 is rotatably mounted a disc of clear glass 17 marked with a series of parallel lines. The disc 17 is rotated until the image of the ground moves in the direction of the parallel lines. The angle of drift is then read from a scale on a rotatable annular ring 21 which is normally clamped to the shell 10. An aperture 31 in the shell 10 enables a flashlight to be inserted to facilitate viewing. By means of transverse lines on the disc 17 the ground speed and therefore the wind speed and direction may be determined. The device may be used for aiming in photographic work or bombing.
Patent GB-721894-A (GB)
Title: Improvements in or relating to phase sensitive rectifiers and the like
Inventor: BANNISTER LAWRENCE HENRY
IPC: H03D1/22
Filed: 1952-02-01
Abstract: 721,894. Phase-sensitive circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 23, 1952 [Feb. 1, 1952], No. 2807/52. Class 38 (4). [Also in Group XL (c)] A phase-sensitive rectifier or discriminator comprises two magnetic cores having a common limb, and means for establishing in each core, by equal coils 4, 6, 5, 7, linked as shown with the cores, fluxes respectively proportional to the vector sum and vector difference of the signal and reference voltages V1, V2; coils 12, 13 linked with the cores for taking off voltages V3, V4 proportional to the said sum and difference, and rectifiers (not shown) oppositely poled for rectifying the said voltages V3, V4, the output being derived as the difference between the two rectified voltages V3, V4. This output, it is shown, when the signal voltage is small compared with the reference frequency voltage, is proportional only to the amplitude of the signal voltage and to the cosine of the phase difference between it and the reference frequency, i.e. the requirement for a phasesensitive rectifier or discriminator. The rectified outputs of voltages V3, V4 feed equal load resistors, or resistances which can be adjusted to equality.
Patent GB-1279218-A (GB)
Title: Production of motor and jet fuels
Inventor: CHILD EDWARD TAYLOR
IPC: C10G65/12
Filed: 1971-01-20
Abstract: 1279218 Treating petroleum TEXACO DEVELOPMENT CORP 20 Jan 1971 2820/71 Heading C5E Motor fuel and jet fuel are produced by catalytically hydrotreating a hydrocarbon oil, recovering from the hydrotreater effluent a motor fuel fraction, a jet fuel fraction, and a heavy fraction boiling above the jet fuel, catalytically hydrocracking the heavy fraction and recovering from the hydrocracker effluent a motor fuel fraction and a heavier fraction which is recycled to the hydrotreating zone. A feed 11, e.g. straight run gas oil, cycle gas oil from catalytic cracking, shale oil, tar sand oil or coker gas. oil, is hydrotreated: at 13: at 600- 950‹ C. and: 500-1500 p.s.i.g. using a catalyst comprising an oxide or sulphide of Co, Ni,. Fe, Mo, W, Cr, V or mixtures thereof on a support such as silica, alumina, zirconia, magnesia or zeolite, e.g. nickel, tungsten sulphide on boriapromoted alumina. A hydrogen-rich stream. 16 is separated from the. hydrotreated: effluent which is then separated into fraction 24 boiling up to 550‹ F. and a fraction 31 boiling above 550‹ F. The fraction 24 is further separated into a. light naphtha 27 boiling up to 235‹ F., a, heavy naphtha 28 and a jet fuel 29. The fraction 31 is hydrocracked at 32 at 600-850‹ F. and 500-5000 p.s.i.g., using a catalyst comprising Ni, Co, Pt or Pd, optionally together with W, Mo or- Cr on a carrier such as silica, silicaalumina, or aluminosilicate, e.g. zeolite Y, of reduced. alkali metal content. A hydrogen-rich stream 33. is removedfrom the hydrocracked effluent. which, is then. separated at 40 into a 400‹ F. + fraction which is recycled to the hydrotreating zone, a light naphtha 42 boiling up to 235‹ F. and a heavy naphtha 39. The. heavy naphtha streams 39 and 28 are catalytically reformed at 51 and then combined with the light naphtha streams 27 and 42.
Patent GB-1385641-A (GB)
Title: Installation for the transmission of visual information
IPC: G03B15/08
Filed: 1973-01-19
Abstract: 1385641 Display devices R T GANDIA 19 Jan 1973 [21 Jan 1972] 2845/73 Heading G5C [Also in Division G2] In an installation providing movie-type viewing of a cinematographic series of spaced stationary pictures for a moving observer, each picture is rear-illuminated in succession by a separate light source which is energized to provide illumination which pulsates at a frequency determined by the speed of the observer and the picture spacing in the series. The light sources may be gas discharge tubes, or lamp behind rotating apertured shutters.
Patent GB-178918-A (GB)
Title: Improvements in and connected with rollers for roller shutters
IPC: G03B9/28
Filed: 1921-01-22
Abstract: 178,918. Hodkinson, W. G., (trading as Hodkinson Co.). Jan. 22, 1921. Roller-blinds, spring.-Relates to spring rollers for shutters in which a flat coil spring at the end of the roller is enclosed by an open-ended casing adapted to have its open end detachably fitted in a supporting bracket serving as a closure, the unrolling of the shutter winding up the spring, and consists in detachably securing the openended casing to the bracket in such manner that it may be removed therefrom together with the spring and roller without requiring movement of either of the supporting brackets of the roller, so that the spring can be readily removed or replaced. The clock-spring 3 has its outer end 4 attached to a spring box 1 and its inner end 6 passed through a slot 8 in the end of the spindle 7. The spindle passes through a hole in the spring-box and bears on the bottom of a slot 12 in the supporting bracket 2 from which it can be lifted easily and so removed. Lugs 9 on the spring box enable it to be detachably secured to the bracket by nuts 10.
Patent GB-1078561-A (GB)
Title: Improvements in or relating to tyres
Inventor: GARDNER ERIC RICHARD
IPC: B60C9/00
Filed: 1963-01-23
Abstract: In making a pneumatic tyre (see Division B7) a rubber compound containing a water absorbing substance is used to coat some or all of the tyre cords and/or is incorporated in the rubber of the tread, shoulder and/or side-wall portions of the tyre.  Reference has been directed by the Comptroller to Specification 890,262.
Patent GB-684133-A (GB)
Title: A device for putting vehicles on the rails of model or toy railways
IPC: A63H19/30
Filed: 1951-02-06
Abstract: 684,133. Model railways. MARKLIN & CIE GES., GEB. Feb. 6, 1951. [Feb. 7, 1950] No. 289.6/51. Class 132 (iii). A device for use with model railways guides the wheels of derailed vehicles back on to the track or facilitates the correct placing of their wheels on the track. The embodiment shown in Fig. 1 is for connection to the end e.g. of a branch rail section 1, 2. A plate 3 has guiding elements 4 disposed so that wheels of a vehicle made to approach from the wider end of the device are caused to'align themselves prior to running onto the rails 2, 2. The construction shown in Fig. 7 is used by placing it over any section of the track, the plate 3 forming an incline down to the rails 2. Two pairs of guiding elements 7, S are provided. Modifications Figs. 1.0, 1.2, 14 (not shown) allow derailed vehicles to be passed over them on to the rails, and provision is made for clearance of a current carrying middle rail.
Patent GB-603087-A (GB)
Title: Improvements in or relating to boiler feed water regulating apparatus
IPC: F22D5/14
Filed: 1945-02-05
Abstract: 603,087. Boiler feed - water regulators. NORTHERN EQUIPMENT CO. Feb. 5, 1945, No. 2911. Convention date, Oct. 2, 1944. [Class 135] [Also in Group XIII] A feed-water regulator for boilers comprises a cross connection 11 between the steam and water spaces of the boiler, a temperatureresponsive actuator tube 18 extending above and below the normal boiler water level and connected to the conduit 11 substantially at the height of its connection 16 with the boiler steam space and at a point 17 below the normal water level, and a feed water inlet valve, not shown, which is actuated by a fluid-pressure motor in response to variation in the relative amounts of steam and water in tube 18 due to variation in the boiler water level. At one end, the tube 18 is adjustably connected by a collar 28 to a frame 29, the other end of the frame carrying the pivot for a bell crank 34. The short arm of the latter engages a pin 36 carried bv a collar on the tube 18 so that movements of the latter will be transmitted by the longer arm of the bell crank to a stem 44 adjustably positioned on one arm of a further bell crank 41 carried by the frame 29. The other arm of the second bell crank acts on the stem 47 of a pilot valve 48 controlling the actuation of a diaphragm motor connected to the feed water inlet valve. The tube 18 is of steel and is provided on its outer surface with grooves of square cross section to give a large radiating surface and to reduce the heat flow along it. A U-shaped section 19 is provided in the conduit containing tube 18 so that, should the water level in the boiler fall below point 17, water will be available to flow into tube 18 immediately the water level in the boiler rises again above point 17.
Patent GB-360285-A (GB)
Title: Improvements in or relating to steam generating and superheating installations
IPC: F22G3/00
Filed: 1931-01-29
Abstract: 360,285. Steam superheaters. BRUCE, J., 31, Deyncourt Gardens, Upminster, Essex. Jan. 29, 1931, No. 2917. [Class 123 (iii).] In an installation comprising a number of boilers 1 each equipped with a superheater 4, when the supply of steam to a superheater from its boiler is cut off, say at starting up, by closing a valve 7 in the supply pipe 6, steam from the other boilers is supplied to the superheater from the saturated steam main 18 by opening a valve 20 in a pipe 19 connecting the main to the superheater. The pipe 8 connecting the outlet header 3 of a superheater with the superheated steam main 11 is fitted with a cut-off valve 10 and has a byepass controlled by a valve 13. Condensation is led off through a drain pipe 14. When a boiler is under light load, a section only of its superheater may be cut off from communication with the boiler and supplied with steam from the main 18, or the superheater may be entirely cut off from the boiler, which may then be placed in direct communication with the main 18. To prevent overheating of a steam reheater 25 when its normal steam supply is shut off by closing a valve 27 in the supply pipe 26, steam from the main 18 is circulated through-the reheater by opening a valve 30 in a pipe connecting the main to the inlet header 23. The cooling steam after passing through the reheater may be delivered either into the superheater steam main 11 or into the reheated steam delivery pipe 36.
Patent GB-854515-A (GB)
Title: Improvements in or relating to low pressure mercury vapour fluorescent electric discharge lamps
Inventor: LOFTS JACK
IPC: H01J61/72
Filed: 1958-01-29
Abstract: 854,515. Metal vapour lamps. GENERAL ELECTRIC CO. Ltd. Jan. 19, 1959 [Jan. 29, 1958], No. 2971/58. Class 39(1). In a lamp having a tubular glass envelope with reentrant pressed end portions 6, initially coated with a layer of fluorescent material 2, containing a neon or argon gas filling with cap 8 having terminals 7 which connect to the electrode 3 by means of leads 4 ; a heat transfer member 13 with slots 14 and resilient tongues 15 is disposed in good thermal contact with the outside of the envelope enclosed by the cap, and with the cap to facilitate cooling. In one form the member 13 may be a shallow cup shaped annular member with the base of the cup abutting against the end of the envelope, and the outwardly turned rim of the cup abutting against the end wall of the terminal cap. The terminal cap may be perforated and a cooling air stream is induced by through the apertures due to convection currents arising from radiation of heat from the member 13 and envelope portions 5, 6. Heat transfer from the electrode to the cool part of the tube may be restricted by placing a highly reflective shield member in the envelope between electrode 3 and pinch 5. This member may be annular, but must extend across practically the whole of the X-section of the tube. The cap which may be of brass, may be coated with a layer of paint having a matt surface to aid in the dissipation of heat. The heat transfer member may be of copper or brass. Both ends of the tube may be adapted according to the invention, and when the tube is in normal operation with its axis vertical the coolest part of the tube is intended to the lowermost part of the envelope where excess mercury collects. The preferred working temperature is 39‹C. and the mercury vapour pressure would be the saturated vapour pressure of mercury at that temperature. Specification 854,514 is referred to.
Patent GB-1426657-A (GB)
Title: Method for preparation of a dry cyanogen bromide activated hydrophilic polymeric carrier of biologically active compounds
IPC: C12N11/08
Filed: 1974-01-22
Abstract: 1426657 Polymeric carriers; insolubilized enzymes CESKOSLOVENSKA AKADEMIE VED 22 Jan 1974 02971/74 Headings C3H and C3P Carriers for biologically active compounds, e.g. chymotrypsin, are made by (1) suspension copolymerization of a hydroxy ester of acrylic or methacrylic acid with a cross-linking monomer selected from divinyl benzene, bisacrylamides, bismethacrylamides, and acrylate and methacrylate esters of bi- or tri-functional alcohols, (2) activation of the resulting gel polymer by reaction of hydroxy groups with cyanogen bromide, and (3) removal of water from the product, e.g. by solvent treatment of vacuum distillation at below freezing temperature. In examples, the carrier comprises an activated 2-hydroxyethyl methacrylate/ethylene glycol dimethacrylate copolymer.
Patent GB-764305-A (GB)
Title: Improvements in and relating to refuse collecting vehicles
Inventor: EDWARDS CHARLES KEARNS
IPC: B65F3/04
Filed: 1954-02-01
Abstract: 764,305. Charging sealed refuse vehicles. SHELVOKE & DREWRY, Ltd. Feb. 1, 1954, No. 2983/54. Class 78 (4). Flaps 24, Fig. 6, of rubber or similar material surrounding the greater part of an aperture through which containers are discharged into a refuse vehicle can be deformed by the container as it enters the orifice without the' overlaps at the inner ends of the flaps being destroyed. The flaps are preferably curved at the root end, either by being moulded to a curve or by clamping plates 26, as shown in Fig. 3, but are substantially firmer at the inner ends so that they will curve outwardly as a bin 14, Fig. 6, is removed, as well as inwardly when the bin is inserted. At the lower part of the orifice shown the flaps are replaced by a continuous strip 32, Fig. 2, formed with slits 34. Within the orifice is provided a pair of doors 28 carried by hinges 30 which slope upwardly and towards the orifice so that they close by gravity. The invention is described as applied to the refuse-collecting vehicle of Specification 764,304.
Patent GB-264025-A (GB)
Title: Improvements in or relating to adjustable hand tools for gripping or like purposes
IPC: B25B13/18
Filed: 1926-02-02
Abstract: 264,025. Sankey, A. R. M. Feb. 2, 1926. Pliers and cutters.-An adjustable hand tool for gripping so that on release of hand grip pressure the jaws do not tend to open comprises a jaw C sliding on the arm B of a fixed jaw A, the jaw C being moved up and down through a lever F pivoted at one end of the fixed arm Band operated by a sliding block E moved by a cam slot E<1> and pin on a hand grip lever D. To open the jaws a finger is pressed on the extension D<2> of the lever D. The jaw C has a long sliding guide C<3> to prevent binding. In Fig. 4, pressure on the handles X and V<1 >moves the jaw W up until it contacts with the object gripped when further pressure on the handles causes the lever Y<3> to pivot about Y<5> so that a pawl Z<2> turns the toothed wheel Z<3> which engages a rack on the guide W<1> and so further tightens the jaw W on the object. Release is effected by finger pressure at D<2>. Parts V<2> are reversible in the jaws V and W to give a smooth or toothed grip. Fig. 3 shows an adjustable cutting blade M<1> pivoted on the fixed jaw. Fig. 2 shows the tool adapted to be used as a punch with an adjustable pin G<1> taking into a hole G<2>.
Patent GB-620925-A (GB)
Title: Improvements in bag making machines
IPC: B31B23/00
Filed: 1947-01-31
Abstract: 620,925. Paper bags. STRACHAN & HENSHAW, Ltd., DUERDEN, S., and SARGENT, T. Jan. 31, 1947, No. 3054. [Class 94(ii)] in manufacturing block and nose bottom bags the web and afterwards the tube is severed in two stages and the final severance is made while an extension 21 to a former 20 is within the tube. Initial incisions a, b, Fig. 5 are made in the paper web by cutters 16, 19 on shafts 7, 8 respectively, the incisions being superposed when the tube is formed around the former. The latter carries a spring finger 23, or other means to bring an edge of the tube into engagement with a folding nose 32 which forms the diamond fold. The tube is finally cut at c, by cutters 26, 27, the cuts c registering with the slits a, b previously formed (Fig. 6). The severed bag blank is then gripped by the portion of increased diameter 31 of the forwarding rolls 30. To avoid tearing, the rotation of the rolls 30 is such that the bag blank is not gripped before severance, as the peripheral speed of the rolls may be greater than the paper speed. The portion d formed by the cut b is raised up by the spring finger 23 and folded over on top of the fold g which is formed by the pressing of the blank into a gripper 46 of known construction, a dipper blade 44 being carried on the upper folding roll 43. The bag is forwarded by a folding knife 40 to the pasting rollers 36 where adhesive is placed on the diamond folded portion to effect sealing when the necessary folds have been made. A crease h is formed and a fold made by a blade 57, on a roll 56, which co-acts with a recess 47 in a roll 45. The creasing causes a portion i to rise up from the body of the bag and the fold is completed by a bar 54 on a chain 50. The bar 54 moves at a greater speed than the bag blank. The speed of shafts 7, 8 may be adjusted by means of eccentric gears 11,12 so that the peripheral speed is at paper speed at the moment of the formation of the slits a, b, to avoid tearing the paper.
Patent GB-386138-A (GB)
Title: Change speed gear
IPC: F16H29/08
Filed: 1932-02-02
Abstract: 386,138. Variable-speed ratchet gearing. QUEVRAIN, L. and QUEVRAIN, H., 25, Rue Lalande, Paris. Feb. 2, 1932, No. 3083. Convention date, Feb. 12, 1931. [Class 80 (ii).] Ratchet gearing, continuously variable in speed from zero to a predetermined maximum, comprises a single driving crank pin 10, invariably oscillating, through a sleeve 10a, loose on the crank pin, and links 12, eight crank arms 14 journalled in sleeves 7 in a rotatably adjustable carrier-frame 6, rectangular grooves 16 in the crank-arms 14 being engaged by roller-surrounded pins 25 on variably-oscillated crank arms 23 facing the arms 14 and having keyed to them ratchettoothed discs 26 imparting unidirectional motion through pawl-carrying plates 28 to looselymounted pinions 27 meshing with a common central wheel 33 on the aligned driven shaft 5. The carrier-frame 6 is rotatably adjusted between fixed limits to vary the throw imparted to the crank-arms 23 by a worm wheel 32 engaging the toothed periphery of the carrierframe 6. The crank-arms 23 are journalled in fixed sleeves 17, 18 pinned against rotation in the housing 1. In addition to being supported in oil-retaining cover-plates 2, 3, the driving and driven shafts bear in central sleeves 8, 20 in the carrier-frame 6 and sleeve 17 respectively.
Patent GB-307174-A (GB)
Title: Improvements relating to tanks
IPC: B65D88/08
Filed: 1928-01-31
Abstract: 307,174. Kron, O. Jan. 31, 1928. Tanks. - Metal plates are assembled in arch formation convex towards the interior of the tank. The plates may have rightangled flanges, in which case wedge members 2, Fig. 1, are interposed, or opposite flanges are inclined inwardly from the right-angle position. The arches may abut against posts 3 connected by tension members 4, or may be connected to channel irons 3a, Fig. 3, also connected by members 4, and rods 6 may connect the upper edges of opposite sides. Packing material is deposited to make joints between the plates on the inner side, preferably in recesses formed in the plates.
Patent GB-1031223-A (GB)
Title: Process and apparatus for rendering latent electrostatic images visible on electrophotographic material
IPC: G03G15/09
Filed: 1963-01-25
Abstract: 1,031,223. Developing electrostatic images. FARBWERKE HOECHST A.G. Jan.25, 1963 [Jan. 27, 1962],No. 3299/63. Heading G2H. Latent electrostatic images on electrophotographic material are rendered visible by contact with a developer powder consisting of an electrically conductive particulate carrier and a dyed toner in a chamber in which the powder is vigorously whirled by a rotating electromagnetic field. Preferably the field is produced by a stator excited with three-phase current. The electrophotographic material may be moved continuously through the whirled powder in a closed chamber of circular or other cylindrical or prismatic form having entry and exit slots in the end walls, and the whirling action may be assisted by mounting with the chamber a hollow cylindrical rotor of non- ferrous metal having blade-or screw-shaped paddles extending into the chamber interior. A fixed core of soft iron or dynamo sheet may be disposed within the chamber to intensify the field. If desired the whirling chamber may be evacuated. The carrier particles may be of iron or copper, brass or aluminium alone or with iron.
Patent GB-741610-A (GB)
Title: Carpet looms
IPC: D03D39/00
Filed: 1954-02-05
Abstract: 741,610. Pile fabric looms; shedding mechanism. RICHARDS, D. H. Feb. 5, 1954[Feb. 5, 1953], No. 3337/53. Class 142 (2). To enable stripes of patterning to be woven in a Wilton or Brussels carpet, the pile yarn heald frame 1 has front and rear bars 5, 6 carrying groups of healds 7a, 7b threaded with different colours of yarn, one being the same as that threaded through the main healds 2. Either bar 5 or 6 can be coupled to the heald frame by rocking a shaft 10 carrying forwardly and rearwardly directed hooks 12, 13, the selection being effected when the heald frame is down; the selected healds 7a or 7b then move with the heald frame and the others remain down, the brackets 4 which guide the rods 5, 6 having vertical slots for this purpose. The hooks 12, 13 are urged in one direction by a spring and operated in the other direction by an electromagnet 15 energized by a ratchetdriven contact disc.