baber/WOPTO huggingface dataset:
Patent GB-193984-A (GB)
Title: Improvements in electric pianoforte driers & the like
IPC: G10C3/00
Filed: 1921-12-06
Abstract: 193,984. Watson, P. Dec. 6, 1921. Preventing damp in pianofortes.-The humidity of the air within a pianoforte is controlled automatically by an hygrostat located within the instrument, which, when the humidity reaches a predetermined value either completes the circuit to electric heating elements disposed within the pianoforte or actuates a warning device. As shown, the hygrostat comprises a rod of catgut or other material susceptible to moisture, which is carried by a screw supported by a bracket secured to an insulated base and which carries a metal .arm e adapted to contact with a contact on the spring-arm b secured to the base and supply current to the heaters through the connection g and the stop h.
Patent GB-1049444-A (GB)
Title: Overheating protection devices
IPC: H02H5/04
Filed: 1963-08-19
Abstract: 1,049,444. Transistor circuits. AKAI ELECTRIC CO. Ltd. Aug. 19, 1963 [Aug. 18, 1962], No. 32681/63. Heading H3T. [Also in Division H2] An overload protective arrangement comprises a relay 1 having coils L1, L2 and contacts S1, S2, the coil L1 and the contacts S1 being connected in series with a protected apparatus, e.g. a power transistor, so that the coil L1 is energized in accordance with the load current, and the coil L2 being connected in series with a transistor Tr which is biased by a thermistor 20 in heat conducting relationship with the protected apparatus. Under overload conditions, the currents in both coils L1, L2 increase and the relay operates contacts S2 to shortcircuit the transistor Tr and so complete a holding circuit for the coil L2 and operates contacts S1 to interrupt the supply to the apparatus. Operation of a push-button switch 11 is necessary to cause the relay to release.
Patent GB-844987-A (GB)
Title: A nozzle for injecting powders or granules into a bath of molten metal
IPC: C21C5/46
Filed: 1958-10-14
Abstract: 844,987. Tuyeres. A.R.B.E.D. ACIERIES REUNIES DE BURBACH - EICH - DUDELANGE S.A. Oct. 14, 1958 [April 25, 1958; May 14, 1958; Aug. 2, 1958], No. 32709/58. Class 51 (1). Powders or granules suspended in a gas or gaseous mixtures are blown into or on top of molten metal through a nozzle comprising a convergent part 1 of entrance diameter D to a neck 3 of diameter d leading to a divergent part 2 the diameter d of the neck and its length are related by the formula in which K is greater than 2 and may be between 2.5 and 3. Also C/d > 2 and may be between 3 and 5. The angle of the divergent part is 6 degrees or less.
Patent GB-656930-A (GB)
Title: Improvements in gas turbines
IPC: F23R3/46
Filed: 1948-12-20
Abstract: 656,930. Gas turbines. COMPAGNIE ELECTRO-MECANIQUE. Dec. 20, 1948, No. 32833. Convention date, Dec. 20, 1947. [Class 110(iii)] [Also in Group XII] A gas turbine has two separate annular combustion chambers 1, 2, or two circular arrangements of combustion chambers, which deliver gas separately through nozzles 6 divided into two tiers by a partition 5. The partition 5 may terminate at the leading edges of the nozzle guide blades. The turbine blades 7 are similarly divided by platforms 14, and the two portions may have different blade angles. The fuel supplies to the two, or two sets of, chambers are separately controlled. At high loads, the gas delivered to the inner tier of blades will be at a temperature lower than that of the gas delivered to the outer tier.
Patent GB-417587-A (GB)
Title: Improvements in incubators
IPC: A01K41/00
Filed: 1933-11-22
Abstract: 417,587. Hatching-appliances. HAMER, G., Moss Hill Poultry Farm, Bradshaw, Bolton. Nov. 22, 1933, No. 32935/32. [Class 5 (ii).] An incubator comprises tiers of hatching trays c<2>, c<3> disposed above tiers of incubating trays c, c<1>, a water tray w disposed below each tier of hatching trays and a fan or fans m so arranged relatively to the various tiers of trays and to the heating means k, as to cause heated air to flow vertically downwards through the various tiers of trays and, in the case of the hatching trays only, to impinge upon the water in the trays w for the purpose of removing any dust or fluff picked up by the circulating air current from the hatching eggs. One fan m and one set of heating means k may be provided, Fig. 1, the tiers of hatching trays being separated from the tiers of incubating trays by the water trays wand by deflectors h, or the hatching trays and incubating trays may be confined in separate compartments, Fig. 3, a fan m and heating means k being provided in each compartment.
Patent GB-965799-A (GB)
Title: Colour photography
Inventor: LARGE ANTHONY ALLEN
IPC: G03B27/73
Filed: 1961-09-15
Abstract: 965, 799. Printing from colour negatives. ILFORD Ltd. Aug. 30, 1962 [Sept. 15, 1961], No. 33254/61. Heading G2C. In making colour prints by exposing print material to red, green and blue light via a colour negative requiring a different quantity of exposure to each colour the exposure is effected from two light sources each transmitting two colours only and as the required exposure to each colour light is achieved that colour is filtered out either at the appropriate light source or in the combined beam from both sources. Fig. 2 shows apparatus suitable for use when red light is least required and blue most. 1 and 2 are sources of white light and 3 is a light integration box. The primary colours transmitted by the various filters are indicated by A for red, B for green and C for blue. Initial exposure is effected with magenta filter AC and cyan filter BC in position, after the required exposure to red the magenta filter AC is replaced by blue filter C. Similarly after the required exposure to green the cyan filter BC is also replaced by the other blue filter C and after sufficient exposure to blue light is achieved exposure is terminated by switching off or interposing yellow filter AB in the combined beam. Filter changes may be effected electronically in response to photo-cells for each colour. Figs. 1 and 3 (not shown) illustrate modifications of the above apparatus wherein (Fig. 1) the cyan and magenta filters are fixed with the blue filters superimposable or (Fig. 3) the two filters on each light source are independently mounted.
Patent GB-953572-A (GB)
Title: Improvements relating to buckles
Inventor: WILSON TECWYN PRICE
IPC: A44B11/25
Filed: 1961-09-18
Abstract: 953,572. Strap fastenings. J. B. BROOKS & CO. Ltd. Dec. 17, 1962 [Sept. 18, 1961], No. 33304/61. Heading E2A. A buckle for detachably connecting portions of a strap belt or harness consists of two parts, one part comprising a flat plate-like member 3 attachable to one strap, belt or harness portion and which is slidable into fastening engagement with the second part which comprises a spring influenced lever 12 mounted on a body member 4 which is attachable to another strap, belt or harness portion, the plate-like slidable member 3 having notches 6 in opposite side edges which are engageable by down turned shouldered lugs 14 on opposite sides of the spring influenced lever. The member 3 is prevented from rising within the body member by a longitudinally extending locating device consisting of two bent up lugs 20, 21 of a width equal to that of a slot 7 in the member 3 the device being riveted to the base 8 of the body member and the rear lug 21 being of T-shape so that the side portions of the member 3 slide under the head of the T. The spring which biases the lever into engagement with the member 3 is a blade spring having one end anchored to a pivot bar 11 for the lever and the other end extending through an opening in the lever so as to bear on the top of a depressed part of the lever.
Patent GB-443454-A (GB)
Title: Improvements in construction of cycle frames
IPC: B62K3/02
Filed: 1934-11-20
Abstract: 443,454. Cycle frames. HETCHIN, H., 798, Seven Sisters Road, Tottenham, London. Nov. 20, 1934, No. 33317. [Class 136 (iii)] The seat stays and chain stays of cycle frames are bent to a curved form, as shown at A, B, C, in order to increase their shock - absorbing properties. The tubes forming the stays may be tapered towards their outer ends.
Patent GB-429597-A (GB)
Title: Improvements in or relating to methods of photographic reconnoitring, surveying or the like
IPC: A61K9/16
Filed: 1933-11-29
Abstract: 429,597. Photographio surveying. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. Nov. 29, 1933, No. 33450. Convention date, Nov. 29, 1932. [Class 98 (i)] A method of photographic reconnoitring or surveying from mobile craft in fog comprises the steps of exposing an infra-red sensitive film in the gate of a photographic camera, developing the film with a rapid developer, such as metol-hydroquinone with an alkali hydroxide accelerator, fixing, as with an alkaline solution of potassium cyanide, and viewing, the steps being effected in rapid succession in a single apparatus of known type. The step of fixing may be omitted. The pictures may be converted into positives by known reversing treatment. Specifications, 2954/09, [Class 98], and 5330/15, [Class 98 (i)], are referred to.
Patent GB-334533-A (GB)
Abstract: 334,533. Dreyfus, H. June 1, 1929. Acetic and other aliphatic anhydrides are made by passing the acid vapour through a heated filling mass of copper or other metal of like high thermal conductivity which may be in the form of balls, small pieces, bundles of wire or fine cellular structures such as spongy or porous copper. The reaction may be effected in a copper tube and in presence of catalysts known to favour the reaction, and these catalysts may be mixed with the filling material. The vapour may be passed first through the filling mass without catalyst, and then through the filling mass containing a catalyst. The filling mass may be heated through the walls of the tube or independently. In examples acetic, or other acid vapour is passed through (1) copper turnings in a copper tube at 400-700‹ C.; and (2) copper turnings mixed or coated with alkaline earth tungstate or other known catalyst, a filling mass of copper turnings without catalyst being disposed before or both before and behind the catalyst mass. The process may be effected at any suitable pressure, or under reduced pressure. The anhydride may be separated from the reaction mixture by the process described in Specifications 256,663, 256,664, 279,916, 289,972, 298,667, 303,772 and 310,863. Specification 305,147 also is referred to.
Patent GB-1294163-A (GB)
Title: A sliding vane rotary pneumatic compressor or motor
IPC: F01C21/00
Filed: 1970-07-10
Abstract: 1294163 Rotary compressors or motors UZINO "UNTO" SATU MARE 10 July 1970 33579/70 Heading F1F In a rotary sliding vane compressor or air motor, a rotor is mounted, with a small amount of axial freedom, within a casing, each end face of the rotor having a number of recesses therein, which are supplied with air under pressure via arcuate openings in the casing end plates, so that the rotor may be balanced axially. As described, Figs.1 and 2 (not shown), the recesses are located between radial slots locating the vanes.
Patent GB-666887-A (GB)
Title: Utility cover
IPC: B65D45/00
Filed: 1948-12-31
Abstract: 666,887. Covers for food-containers &c. WORMULL, G. Dec. 31,1948. No. 33643/48. Classes 66 and 125(iii). A cover for food-containers comprises a circular horizontal wall 26 having a U- shaped circular skirt wall 27 at its edge adapted to straddle the vertical wall of the container 25, the outer portion of the skirt wall being longer than the inner portion which has ribs 33 projecting inwardly in vertically spaced relation to the circular wall 26, and a circular plug 30 fitting snugly against the circular wall 26 and against the inner portion of the skirt wall and having inclined cam means 35 for increasing the pressure of the plug between the ribs 33 and the circular wall 26. The member 24 comprising the walls 26, 27 may be formed of thermoplastic or thermosetting resin or a metal or alloy, and a grip band 28 is provided. The bottom face of the wall 26 may be slightly concave, and the bottom face 31 of the plug 30 slightly convex. The plug 30 is formed with a handle 38 and slots 34 which may be aligned with the ribs 33 so that the plug may be removed. The cam ridges 35 have shallow portions 36 adjacent the slots 34 and high portions 37 remote from the slots. When the plug is turned so that the cams 35 engage beneath the ribs 33 the plug is forced tightly down against the member 24 which expands to efficiently close the jar.
Patent GB-1460687-A (GB)
Title: Sterilizing apparatus comprising a pressure reducing valve
IPC: F16K41/00
Filed: 1975-08-13
Abstract: 1460687 Steam sterilization STORK AMSTERDAM BV 13 Aug 1975 [14 Aug 1974] 33651/75 Heading A2D Apparatus for sterilizing a liquid such as milk by means of steam injection comprises a feed pipe for the liquid, at least one steam injector opening into the pipe, an expansion vessel at the delivery end of the pipe, and a pressure reducing valve intermediate the injector(s) and the vessel, the valve having a housing 15 and a valve body mounted on a movable spindle 14 protruding from the housing via sealing means, the spindle being disposed on the valve high pressure side, the valve opening in the flow direction of the liquid, and the sealing means including a chamber 17 to which is connected a supply of hot water or steam 18 at a pressure lower than the supply pressure of the liquid to be sterilized and from which there is a discharge for water or condensate 19. A reducing valve for use in the above apparatus has a housing 15 and a valve body 13 mounted on a movable spindle 14 protruding from the housing via sealing means, the spindle is disposed on the valve high pressure side, the valve opens in the flow direction of the liquid, and the sealing means includes two spaced sealing zones 16 between which is an annular chamber 17 with opposed ports 18, 19 for the supply and discharge of the sterilizing medium.
Patent GB-422013-A (GB)
Title: Improvements in electrical instruments for measuring resistance
IPC: G01R27/02
Filed: 1933-12-01
Abstract: 422,013. Resistance measurements ; pressure meters. TURNER, L. B., 47, Bateman Street, Cambridge. Dec. 1, 1933, No. 33701. [Class 37] A portable arrange ment for measuring high resistances, such as grid leaks and insulation resistances comprises a thermionic valve A, ar ammeter E in the anode circuit, adjust able resistances C, F and batteries D, G connected as shown, and a resistance H with tappings J-M connected in the grid circuit, the resistance R to be measured being connected to a terminal N connected to the battery D and to one of the tappings JM. The ammeter is calibrated to read the value of the resistance R directly when the resistance is connected to the terminal J, or with the aid of a multiply. ing factor, which may be 10, 100 or 1000, when the resistance R is connected to one of the terminals K, L. M. Still higher values of resistance may be measured by connecting a battery in series with the resistance R. According to the Provisional Specification, the apparatus may be used as a high resistance alternating voltmeter by connecting condensers between the anode and filament and between the voltmeter input terminal and the grid, the voltage to be measured being applied between the filament and the grid.
Patent GB-192250-A (GB)
Title: Improvements relating to dyeing machines
IPC: D06B23/00
Filed: 1921-12-15
Abstract: 192,250. Farrar, J., and Whitehead, A. R. Dec. 15, 1921. Oil, catching. - The collar B of a lubricantcollecting device of the overhanging collar and chamber type for use on propeller shafts of dyeing-machines is recessed to receive a leather or other packing ring D which may be cut through at one side to enable it to be pressed around the shaft, or the recess may be filled with paraffin wax, pitch, glue, sulphur, &c. The chamber C has an annular wall c, is provided with fixing- lugs c<1>, and may have a draw-off tap or plug.
Patent GB-1046569-A (GB)
Title: Improvements relating to luminescent materials
IPC: G21K4/00
Filed: 1965-08-06
Abstract: A phosphor comprises a mixed borate of an alkaline earth (Ca, Sr, Ba or Mg), and an alkali metal (Li, Na or K), activated by terbium and possibly also gadolinium; the ratio of the alkali and alkaline earth metals to the boron trioxide is between 4: 1 and 1: 2 g. atom/g. mol., and the ratio of activator to boron trioxide is between 0.02 and 0.4, preferably 0.03-0.3 g. atom/g. mol., the concentration of gadolinium preferably being 0.05-0.25 g. atom/g. mol. of boron trioxide. The phosphor may be prepared by heating in air a mixture of the oxides and carbonates at 600-700 DEG  C. to expel water from the H3BO3, and then heating to near the melting point; the material may then be pulverized and re-heated.  When excited by radiation of 253.7 mm , the material has a green emission, with a maximum at 545 mm , and good high temperature emission (300-600 DEG  C.).  It may be used in H.P.M.V. lamps, lasers &c.
Patent GB-763079-A (GB)
Title: Improvements relating to circuit arrangements for dielectric heating
Inventor: BROOK KENNETH WILFRED
IPC: H05B6/48
Filed: 1953-12-08
Abstract: 763,079. Radio-frequency coupling arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 8, 1954 [Dec. 8, 1953], No. 34159/53. Class 40(7) In order to simplify the matching problems involved in coupling the valve oscillator to the work capacitor unit in a dielectric heater a tuning capacitor CT is connected directly between the anode and cathode of the oscillator valve V and the tuning inductance L1 is connected between the capacitor and one of the supply leads to the work unit CW. The supply leads will normally be inductive and their inductance is shown lumped at L2 and L3. For the purpose of equivalent circuit analysis L2 and L3 may be regarded as representing an addition to L1 (Fig. 3, not shown). In this arrangement the load reactance is in series with the tuning inductance and supply lead inductance and will neutralize a part of them.
Patent GB-1502037-A (GB)
Title: Railroad crosstie
IPC: E01B3/44
Filed: 1976-08-17
Abstract: 1502037 Synthetic railway sleeper DOW CHEMICAL CO 17 Aug 1976 [18 Aug 1975] 34225/76 Heading E1G A railway sleeper comprises rail support blocks 11, 12 and web members 13, 14 interconnecting and fastened to the blocks, the web member being buried vertically in the ballast and having corrugations running between the blocks for mechanical interaction with the ballast. The blocks may be made of plastic e.g. cellular polyethylene, foamed polymers of ethylene or propylene, polyurethanes, polyesters, nylons, PVC resins ABS resins, rubber - modified polystyrene resins, or phenolic resins, or of wood laminated wood, laminated asbestos - cement boards or concrete and the webs may be made of steel, galvanised iron, controlled corrosion steel, aluminium alloy, thermoplastic resins, fiber-reinforced plastics, asbestos-cement compositions or resin-impregnated wood. The web shown in Fig. 1 may also have a bottom component forming an open top rectangular trough. The webs may also be formed of longitudinal members having channel, angle, H, I, T, X or folded sheet sections, provided that at least one vertical face has the required corrugations. Alternatively such sections may be used in addition to the webs. e.g. for added strength.
Patent GB-487058-A (GB)
Title: Improvements in or relating to water heaters
IPC: F24H9/20
Filed: 1936-12-14
Abstract: 487,058. Heating water. CHAPMAN, F. W., and OMNIA MANUFACTURING CO., Ltd. Dec. 14, 1936, No. 34318. [Class 64 (i)] A water heater comprises a combustion casing 10 containing a burner 11, a closed tube 14 extending transversely above the burner and carrying outer heat-conducting fins 15 arranged edge on to the flow of burnt gas, and a core 13 arranged within the tube so as to provide a narrow annular water space. The core is tubular, is closed at both ends, is spaced by rings 16 from the tube so as to leave a greater depth of water near the burner and may be slid out of the tube when one end 21 of the latter is unscrewed. The core is cylindrical and contains a thermostat 34 controlling the burner, but the vertical crosssection of the tube may be larger than the horizontal cross section. The fins are rectangular with their vertical edges bent to a U-shape and joined at 29 to the adjacent fin and to side members 31. attached to the casing 10. A coiled pipe 26 arranged around or within the casing 10 leads to the tube 14 and hot water outlet 28.
Patent GB-927033-A (GB)
Title: Retrievable plug for subsurface well tool passage
Inventor: CROWE TALMADGE LAYNE
IPC: E21B33/12
Filed: 1960-10-06
Abstract: 927,033. Wells. BAKER OIL TOOLS Inc. Oct. 6, 1960, No. 34326/60. Class 85. A plug A has a body 27 adapted to be releasably secured in a passage 10 in a well tool C the plug having latch means 39 securing the plug to the tool. The latch means comprises a split sleeve having tapered threads 42 adapted to engage a threaded part 18 on the tool. The plug is lowered into the well on a running-in and retrieving tool D having a casing 63 with a slotted structure 20 engaged by a pin 21 on a control bar 19. The bar is held in a sleeve 22 by means of a release stud 23 and member 24, the sleeve being initially fixed to the body by a shear screw 29 to close ducts 30 leading from duct 31. A connector 50 co-operates with flanges on the sleeve and the latch means. Initially the control bar is fixed to the casing 63 by a shear screw 64, the pin being in the position 1 (Fig. 3). During the lowering, and after the lower part of the body with the seal 37 has entered the passage, the flange 28 on the body pushes the latch means into the threaded part 18 until the connector engages the surface 57 on the tool. Further lowering of the tool D shears the screws 64 and permits the pin to move to the position 2. The tool D is elevated, the pin passing through the position 3 as the tool is removed from the bar. Upward fluid pressure on the plug forces the part 48 against the bottom of the latch means and the threads are engaged with greater pressure. Downward movement of the plug caused by downward fluid pressure will be prevented by the connector. To retrieve the plug the tool D is lowered over the bar, the pin passing through the position 4 to the position 5. The tool D is then raised, the pin moving to the position 6 to entrain the plug. Before the plug moves the screw 29 shears to equalize the pressure below and above the tool C by opening the ducts 30. Should the latch means fail to disengage, the tool D is pulled until the stud 23 breaks, and the tool and bar are removed. The plug is then removed by a fishing tool which engages threads 81.
Patent GB-1164844-A (GB)
Title: Transmission Arrangement
IPC: F16H49/00
Filed: 1966-08-01
Abstract: 1,164,844. Toothed gearing. POWERTRONICS CO. 1 Aug., 1966 [2 Aug., 1965], No. 34381/66. Heading F2Q. [Also in Division G1] Gearing for correcting inaccuracies in a speedometer reading brought about by changes in tyres, gear ratios and wheel sizes comprises a pair of opposed face gears 32, 35 secured to driving and driven shafts 25, 26 respectively, the gear 35 being resilient and being forced into engagement with the gear 32 at one point by means of a headed pin 39 mounted in a casing 18. The resilient gear 35 may be made of nylon or the material having the Trade Mark "Teflon". In a modification, a two-stage gear comprises resilient gears 49, 50, Fig. 5, on driving and driven shafts 45, 46, pressed into engagement with opposite sides of an intermediate idler gear 51 by pins 55, 56. The pins may be spring-pressed and controlled by solenoids.