baber/WOPTO huggingface dataset:
Patent GB-1222321-A (GB)
Title: Casting moulds
IPC: B22C23/02
Filed: 1969-01-29
Abstract: 1,222,321. Grinding. OY VUOKSENNISKA A.B. 29 Jan., 1969 [30 Jan., 1968], No. 4887/69. Heading B3D.  Apparatus for grinding the interior of a mould 1 comprises a grinding head 2 having grinding wheels 3, 3. The head is carried by a shank 4 mounted on a trolley 6 movable along rails 8 by a motor 7 reversible by switches mounted on a shaft 9. The shaft 9 can be turned laterally and locked in turned position. A motor 10 drives the grinding wheels through a belt 5 enclosed within the shank 4. The mould is hung on chains 11 passing over wheels 12 which can be rotated by an electric motor 13 through reduction gearing, whereby the mould can be slanted one way or the other and turned through 90 degrees for grinding the next inner side. This part of the apparatus is mounted on a separate support 14; the rest of the apparatus is protected by a casing 15 from which dust &c. is extracted, e.g. through a pipe 16.  The shaft 9 carries a lamp 17. The grinding wheels rotate in the direction to throw sparks, dust &c. away from the operator.
Patent GB-1028710-A (GB)
Title: Lever holding device
IPC: B60T7/04
Filed: 1965-02-04
Abstract: 1,028,710. Brake levers. UNIVERSAL AMERICAN CORPORATION. Feb. 4, 1965 [Feb. 17, 1964], No. 4914/65. Heading F2E. [Also in Division B7] A lever lockable in and releasable from different positions comprises a lever 62 pivoted at 76 and engaging by its sector 80 the teeth 81 of a rotatable member pivoted at 86 to the fixed structure and engaged by a one-way acting brake coil 110 having one end secured by a slotted clamp member 118 riveted to the fixed structure. To release the rotatable member, and hence the lever, a second lever 96 is rotated about the member 86 to cause an abutment 140 on its further end to engage and displace the free end 130 of the coil. A rubber buffer is engaged by the end 149 of the first lever 62 to cushion the return movement. The release lever 96 may be operated by a fluid pressure motor 156. The lever may be the foot-operated parking brake lever of a vehicle and the motor 156 may be connected at 165 to the vehicle intake manifold by way of a valve controlled by the vehicle transmission control.
Patent GB-862385-A (GB)
Title: Improvements in or relating to gas turbine power plants
Inventor: TERRELL BASIL JOSEPH
IPC: G21D3/08
Filed: 1958-02-14
Abstract: 862,385. Nuclear reactors. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Dec. 4, 1958 [Feb. 14, 1958], No. 4921/58. Class 39(4). [Also in Group XXVI] In a nuclear reactor closed cycle gas turbine power plant, the turbine working fluid is heated by the reactor coolant in a heat exchanger. As shown, the coolant of reactor 3 is circulated through the heat exchanger 7 by the pump 5. The turbine gas passes first, to the high pressure turbine 9 which drives the compressors 17, 21 circulating the turbine gas, and secondly, after leaving 9 it passes to the low pressure output turbine 12. To reduce power, the valve 11 is opened and some of the working fluid flows through cooler 24 to exhaust duct 13. The throttle valve 14 is employed to modify the inlet pressure changes at the exhaust heat exchanger 15 produced by changes in working fluid flow through 12 by valve 11. The valve 26 permits modification of the inlet temperature changes at the exchanger 15 by by-passing the cooler 24. In a modification, not shown, the valves 14, 26 are automatically controlled respectively by pressure and temperature sensitive elements.
Patent GB-555847-A (GB)
Title: Improvements relating to corner clamps for wooden boxes and the like
IPC: A47G1/10
Filed: 1942-04-16
Abstract: 555,847. Spiked plates. DARVELL G. H. April 16, 1942, No. 5011. [Class 89 (ii)] Corner pieces for wooden boxes are made from metal strip A blanked out with teeth B the sides of which may be flat, concave or convex and are separated at the base by undercu recesses C which may be of circular form. The teeth are bent up at righ angles to the strip which is bent rounc a corner of the box and the teeth are hammered in.
Patent GB-399708-A (GB)
Title: Improvements relating to electrical resistance furnaces
IPC: H05B3/64
Filed: 1933-02-18
Abstract: 399,708. Grid resistances. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, ET CIREY, 1<bis>, Place des Saussaies, Paris. Feb. 18,. 1933, No. 5101. Convention date, Feb. 19, 1932. [Class 37.] A furnace resistance comprises closely spaced coaxial graphite resistances d, a one of which is tubular and the other helical, the resistances being connected together at one end to allow for free expansion and connected to the terminals e, b at the other end. The connections are screwthreaded. The terminals are of amorphous carbon. In a modification, the helix surrounds the tube and the latter may be replaced by a prism.
Patent GB-752364-A (GB)
Title: Method for the manufacture of bottoms or wall linings for converters for refining steel, and blocks for such bottoms or wall linings
IPC: C21C5/48
Filed: 1954-02-22
Abstract: The production of bottoms or wall-linings for converters for refining steel according to the basic process, or blocks for such bottoms or wall-linings, comprises impregnating with a coke-forming material, preferably coal tar, said bottoms or linings or blocks therefor which have been produced by baking a mixture of burnt dolomite and/or burnt magnesite and/or burnt lime and a coke-forming material, preferably coal tar.  The impregnation may be effected by slowly dipping the block into tar or, preferably, by vacuum-impregnation in which the block is placed in an evacuated container which is then filled with tar and opened so as to permit the atmospheric pressure to force the tar into the pores of the block.  The impregnated bottom or lining may be baked again before usage or used without such baking; in the latter case a baking will occur during its usage in the converter.
Patent GB-1525390-A (GB)
Title: Hydraulic system for a gang lawn mower
IPC: F15B11/17
Filed: 1975-09-02
Abstract: 1525390 Gang lawn mower hydraulic control system JACOBSEN MFG CO 2 Sept 1975 [16 Sept 1974] 05136/78 Divided out of 1525388 Heading A1F The subject-matter of this specification is identical with that described in Specification 1525388 but the claims relate to the control of the mower lifting rams 26, 27. Spools 71 and 72 control the flow of fluid to the lifting rams 26, 27 and the mower motor 31 respectively; a pressure relief valve 87' is tripped if the spool 71 is held in the lowering position after the rams 26, 27 are fully stroked and fluid flow is directed to the mower 31 if the spool 72 is in the "on" position or to the reservoir 38 if it is in the "off" position.
Patent GB-137170-A (GB)
Title: Improvements in appliances for playing ring board or quoit games
IPC: A63F9/02
Filed: 1919-03-03
Abstract: 137,170. Cotman, F. J. March 3, 1919. Parlour games.-A board provided with hooks F for use in ring-throwing games is pierced with holes D wherein are suspended on wires L one or more hollow or skeleton prisms, spheres, &c. E bearing numbers or others characters on some of their faces. The prisms &c., when displaced by the impact of a ring, rotate on their supporting- wires and present a different face to the player. The form of prism &c. shown in Fig. 10 is loaded with loose wires or shot G to bring the prism &c. to rest in a definite position. The prisms &c. may be covered by a sheet of cardboard, through which the hooks F project.
Patent GB-556817-A (GB)
Title: Oiling system for compressors
IPC: F04C29/02
Filed: 1942-04-20
Abstract: 556,817. Lubricating. FREEMAN, W. R. April 20, 1942, No. 5242. [Class 12 (iii)] A compressor is supplied with oil from a reservoir 8 only when the compressor is operating. Compressed air passes through conduit 7 to move a piston 30 in a chamber 22 whereby the air can enter the reservoir through passage 29 and tube 9. At the same time a projection 21 on the piston 30 unseats a valve 27 in a chamber 23 whereby oil flows from the reservoir 8 through passage 20 and conduit 19 to the bearings and working parts of the compressor but from the top of the compressor can pass through check valve 12 and conduit 10 to an air receiver 11. The inlet of the compressor is connected to a valve assembly 14 which may be constructed as described in Specification 544,554, [Group XXVI]. The valve assembly is controlled by the air pressure in the reservoir 11 so that when the pressure therein reaches a predetermined value the compressor is cut off from communication with the atmosphere through an air cleaner 15 which instead is connected to the reservoir 8 by way of conduit 17.
Patent GB-546253-A (GB)
Title: Improved apparatus for trimming the edges of veldtschoen and similar footwear
IPC: A43D29/00
Filed: 1941-04-23
Abstract: 546,253. Trimming soles. POCHIN, H. W., and DOVE, G. H. April 23, 1941. Neo. 5247. Addition two 529,811. Drawings to Specification. [Class 17 (i)] In the machine described in the parent Specification the cup-shaped knife is provided with a discontinuous edge, being serrated or castellated, for example by grooving or fluting the body of the cutter, either internally or externally or both.
Patent GB-562942-A (GB)
Title: An improved apparatus for the indication and/or location of breaks in insulated electrical conductors
IPC: G01R31/02
Filed: 1943-04-01
Abstract: 562,942. Valve relay circuits. DURHAM CABLES, Ltd., and STELL, N. April 1, 1943, No. 5248. [Class 40 (v)] [Also in Group XXXVI] Breaks in an insulated conductor 1 are indicated and located by passing it from drum 2 to drum 5 through a metal sleeve 3 forming with the conductor 1 and the glass dielectric 4 a condenser which is connected between the anode and grid of a valve 10. The anode is connected to one side of the split secondary of a supply transformer 9 and the grid is connected through an adjustable resistance 11 to a tapping on a resistance 12 across the other half of the secondary winding. The ends of the conductor 1 are connected to slip rings on the drums from which brushes make connections to terminals 6a, 6b of a switch 6, the movable arm 6c of which is connected to the valve anode. For locating a break, the arm 6c is thrown to contact 6b, and the tapping .12 adjusted so that the valve passes current and energizes the lamp, buzzer, &c. 13. The conductor 1 is then wound on to the drum 5 and when a break passes out of the tube 3, the condenser 1, 3 becomes disconnected and the indicator 13 de-energized, thus locating the break. The switch 6c may then be thrown to the other contact 6a, and energization of the indicator shows that no further break is present. The valve may be arranged to control the power drive to the drums so as to disconnect it when a fault is located. The mercury contact relay. 7 is closed bv hand after the cathode has become heated, and is subsequently held. in closed position by the relay coil.
Patent GB-346514-A (GB)
Title: Improvements relating to coin-freed vending machines
IPC: G07F11/18
Filed: 1930-02-17
Abstract: 346,514. Coin-freed article delivery apparatus. TURNER, H., Grange Villa, Barton Road, Worsley, Manchester. Feb. 17, 1930, No. 5299.. [Class 27.] Storage.-Relates to coinfreed vending machines in which the article magazine is divided into two compartments b, c, by a central partition a having a hinged door e at its lower end to retain the articles in the rear com - partment until the front compartment b is empty, the pressure of the articles in the rear compartment then opening the flap and allowing entry to. the recess d<1> of. the delivery drawer d. According to the invention, the partition wall a is provided with stops g which prevent the flap e from. moving across the rear, compartment. The flap may be provided with two backwardly, curved lugs e<1> which can pass through guiding recesses in the rear wall d<3> of the drawer recess d<1>.
Patent GB-716609-A (GB)
Title: Cold cathode voltage regulator
IPC: G05F3/12
Filed: 1951-03-05
Abstract: 716,609. Pulse circuits. NORTHROP AIRCRAFT, Inc. March 5, 1951 [Aug. 18, 1950], No. 5320/51. Class 40 (6). [Also in Group XXXV] A voltage regulating circuit comprises a gasfilled discharge tube having an imperforate cold cathode 2, a sustaining anode 3 and a regulating anode 4. A battery 11 having a voltage higher than the striking voltage is connected through a resistor 10 to the sustaining anode 3 and maintains a continuous stable discharge between the sustaining anode and the cathode. The regulating anode 4 is connected to the source to be regulated through a regulating resistor 12 and the load circuit 13 is connected between the anode 4 and the cathode 2 via ground. The continuous discharge between the sustaining anode and the cathode has the effect of lowering the striking voltage of the regulating anode to cathode gap and eliminates the negative slope portion of its characteristic so that capacitance loading of the output will not cause oscillation. The circuit is operated on the flat portion of the characteristic for D.C. regulation or may be operated on a knee of the characteristic to provide a positive peak clipping circuit when an A.C. supply is connected to resistor 12. Several tubes may be connected in parallel to provide larger currents.
Patent GB-1025250-A (GB)
Title: An improved nozzle for an irrigation sprinkler
Inventor: WRIGHT CHARLES STEPHEN
IPC: B05B15/65
Filed: 1964-02-07
Abstract: 1,025,250. Spray-producers. WRIGHT RAIN Ltd. Feb. 5,1965 [Feb. 7, 1964], No. 5377/64. Heading B2F. In an irrigation sprinkler of the reaction driven swing arm kind the nozzle 5 has a central throughway comprising a cylindrical portion 8, an intermediate frusto-conical convergent portion 9 and a portion 10 of smaller diameter than the portion 8. The nozzle is screw-threaded into a socket 4 formed in the sprinkler the necessary screwthread only extending over the intermediate portion 9, that portion of the nozzle bounding the throughway portion 8 being plain and of such a diameter that it fits within the socket to form a lining for the inner end of the wall defining the bore of the socket. Accordingly any roughness or irregularities in the pocket wall or a continuation of the socket screw-thread 15 will not be contacted by the flow of liquid to the nozzle and therefore the flow of liquid will not be affected. The nozzle skirt forming the portion 8 may be detachable from the nozzle.
Patent GB-1404311-A (GB)
Title: Apparatus and method for deriving a  surface area of defined  areas
IPC: G01B11/28
Filed: 1971-08-25
Abstract: 1404311 Digital measurement of area UNIVERSITY OF SURREY 27 Nov 1972 [25 Aug 1971 (2)] 5382/71 and 9155/71 Heading G1A For measuring the area of each of a succession of areas, for example spots in thin layer chromatography or peaks on a chromatograph chart record, an optical scanner scans back and forth in spaced scan lines over each of the areas, one area after another, clockpulses generated by scanning by the scanning mechanism are counted only while the scanner is actually scanning over one of the areas, the completed scanning of one area being detected as when no further pulses are counted in one or more scan lines which commands the visual display and/or printing of the accumulated count and reset of the counter for the next area. The areas may be light on a dark background or vice versa or fluorence when illuminated with for example ultraviolet light. The optical scanner comprises a photo-detector, which may be a photo-diode or photo-transistor, which makes a linear or angular scan across the width of a substrate containing the spots or the chart record in conjunction with general lumination or an accompanying light spot. Alternatively the scanning mechanism may be stationary and the substrate or chart oscillated in the scan line direction. In either case the substrate or chart is moved in an orthogonal direction so as to scan one area after another. By means of a series of contacts operated by movement of the substrate an indication is given of which area is being scanned at any moment and if several rows of areas are to be scanned an indication of which row is being scanned at a time is also given.
Patent GB-535724-A (GB)
Title: Improvement in method and apparatus for slitting tyre treads
IPC: B29D30/68
Filed: 1940-03-28
Abstract: 535,724. Slitting tyre treads. UNITED STATES RUBBER CO. March 28, 1940, No. 5596. Convention date, April 28, 1939. [Class 31 (i)] [Also in Group XXXIV] Tyre treads are provided with two sets of transverse slits, one extending from the surface, the other submerged. For this purpose the tyre is mounted on an intermittently rotatable clutch and the cuts are made simultaneously by a reciprocating rotary cutter and by a pair of arcuate cutters respectively, the latter being projected from the opposite sides of the tyre so as to meet in the middle. Fig. 11 shows a tyre with the two sets of cuts 138, 139, the former being made by cutter 54, Fig. 9, while the latter are made by the knives 76, 77, Fig. 10, which are moved in arcuate paths and are guided by a member 88 apertured teeth 89 on which project into the grooves on the tyre tread. The tyre is mounted on a flexible plate 32, Fig. 5, carried by radial members 12 operated by a central wedge member actuated by pneumatic means. The radial members 12 carried by a hub 11 mounted in a bearing which can be raised and lowered to accommodate different sizes of tyres by means of a screw adjustment 37. The rotary cutter 34 operates by a motor 51 carried on an arm 49 adjustably mounted on a member 48 on a rocking shaft 47 actuated by a link 73. The arcuate blades are operated by links 98 actuated by crank pins on inter connected gears 99. The guides are vertically adjustable and the whole mechanism can be moved by means of a pneumatic piston working in a cylinder 84 to allow a fresh tyre to be placed in position. The tyre is moved step by step by ratchet-mechanism, a locking detent being provided.
Patent GB-289423-A (GB)
Title: An impulse transmitter for automatic telephone installations
IPC: H04M1/23
Filed: 1928-02-22
Abstract: 289,423. Siemens & Halske Akt.-Ges. April 27, 1927, [Convention date]. Impulse transmitters for automatic exchange systems- In order that the finger may have an effective grip in the setting direction only, the finger holds of an impulse transmitter are formed as recesses 3 with one side 4 sharply inclined to the face-plate 1 and the other side 5 inclined at a small angle.
Patent GB-932543-A (GB)
Title: Improvements relating to photographic colour printing, and apparatus therefor
IPC: G03C7/18
Filed: 1960-02-17
Abstract: 932,543. Colour printing. GEVAERT PHOTO-PRODUCTEN N.V. Feb. 17, 1960 [Feb. 17, 1959], No. 5683/60. Drawings to Specification. Class 98 (2). A process of printing a photographic colour image on multicolour sensitive material of which the sensitivity ranges appertaining to different colour sensitive layers overlap comprises exposing the material to a light source emitting light which is in part within the spectral region common to the overlapping regions and providing an interference filter or filters to exclude or restrict the light within the common region. A single filter may be formed with two layers which transmit light on either side of a band to be excluded, e.g. one layer may transmit light of 700-510 mÁ and the other light of 470- 400 mÁ, the band between 470 and 510 mÁ being reflected.
Patent GB-397550-A (GB)
Title: Improvements in or relating to the manufacture of parchment-like paper
IPC: D06N7/06
Filed: 1932-02-26
Abstract: 397,550. Translucent paper. ALADDIN INDUSTRIES, Ltd., Greenford, Middlesex.-(Assignees of Reiss, F. 0., Alexandria, Indiana, U.S.A.) Feb. 26, 1932, No. 5823. Convention date, Feb. 27, 1931. [Class 96.] Paper having a high alpha-cellulose content is impregnated with a glyptal type artificial resin to form a translucent, heat-resistant paper, e.g. for shades of incandescent mantle lamps. The paper is made from spruce chips digested with sulphurous acid, blown and washed, leaving sufficient beta- and gammacellulose, e.g. 5 per cent, to act as binding medium, no size being used. The paper is immersed 1-3 mins. in the resin bath at 140- 160‹ C. and excess resin scraped off, the distance of the scrapers from the bath being regulated to allow cooling and absorption of the resin ; the paper being then kept 6 hrs. at 130‹ C. to complete polymerization. Tricresylphosphate may be used as a plasticizer, and benzoic acid to modify the brittleness, e.g. of a glycerol-phthalic anhydride resin.
Patent GB-987554-A (GB)
Title: Means for treating textile material
IPC: F26B13/00
Filed: 1964-02-12
Abstract: 987,554. Drying fibrous materials. H. FLEISSNER, H. FLEISSNER, and G. FLEISSNER, [trading as FIRMA ESTABLISHMENT FOR AUTOMATION]. Feb. 12, 1964 [Feb. 12, 1963], No. 5871/64. Heading F4G. Apparatus for drying loose fibrous materials, e.g. wool, comprises a chamber housing a sieve drum 3 at the entry to which the material 1 is fed by a belt 2 and a sieve drum assembly 6 at the exit end which discharges the dried material to a shoot 7, between which drums two superposed endless perforated belts 4, 5 are mounted through which dry air from nozzles 10 below the lower belt 5 is passed. The belts are driven at the same or different speeds, and may be in stages, or a single belt may be provided and in other modifications the belts may be inclined to the horizontal or be situated above or beneath one or all the sieve drums.
Patent GB-724693-A (GB)
Title: An improved knurling device
IPC: B21H7/14
Filed: 1953-03-03
Abstract: 724,693. Rotary chasing-cutters. MILLER GES., GEB., and MILLER, K. March 3, 1953 [March 8, 1952], No. 5936/53. Class 83 (3). A knurling device comprises two wheels having serrated cutting edges 10, 101 which engage the same side of the work W, their axes being inclined to the axis of the work. The two cutters revolve freely on pins set at an angle of 45 degrees on shafts 9 which are simultaneously adjustable by a cross-shaft 6 carrying oppositely-threaded portions. The cutter assemblies are adjustable together about a pivot 2 by screws 3.
Patent GB-233477-A (GB)
Title: Improvements in wireless aerials
IPC: H01Q1/16
Filed: 1924-03-08
Abstract: 233,477. Ashton, H. March 8, 1924. Aerials.- A spreader for aerial erected on a single pole or like suppor comprises a stamped metal frame, a shown in Fig. 1, hav a hub and a numbe of spokes radiating therefrom, each spoke carrying an insulato a. In modifications the spreader may b of wire, or of cast tubular or wrought metal, or of insulating material. It may also be formed in two parts bolted together round the pole. To allow the aerial to be raised or lowered, two spreaders may be separated by supports a, Fig. 6, and the pole may pass through the hubs of the spreaders so that the aerial may be raised or lowered by means of a halyard.
Patent GB-1017227-A (GB)
Title: Automatic frequency control system for single side-band receivers
IPC: H03L7/10
Filed: 1964-02-12
Abstract: 1,017,227. Automatic frequency control systems; homodyne receivers; radio signalling. CSF COMPAGNIE GENERAL DE TELEGRAPHIE SANS FIL. Feb. 12, 1964 [Feb. 13, 1963], No. 5988/64. Headings H3A, H3Q and H4L. In a single sideband receiver a residual pilot carrier frequency is also received and beat with a local oscillator 10 to derive a carrier I.F. which, by a feedback loop A operated from a phase discriminator 12, synchronizes a reference oscillator Fr which responds rapidly to momentary frequency fluctuations due to transmitter or receiver crystal changes, but longer term changes are compensated by the discriminator output acting on both a voltage variable capacitor 15 correcting the local oscillator frequency and on a motor 16 correcting its frequency by driving a capacitor 17. The reference frequency Fr is then used for mixing at 4, 5 with I.F. sideband oscillations derived by beating the local oscillator 10 in mixers 2, 3 with the incoming carrier sidebands and deriving the I.F. sidebands Fo - (Fi+Fm) and Fo - (Fi - F<SP>1</SP>m) in filters 22, 23, for beating with Fr = (Fo - Fi) in mixers 4, 5. The two demodulated sidebands Fm, F<SP>1</SP>m may be separate information signals.