baber/WOPTO huggingface dataset:
Patent GB-1478790-A (GB)
Title: Perdussive hand tool machine
IPC: F15B21/12
Filed: 1975-05-12
Abstract: 1478790 Hydraulic tools ROBERT BOSCH GmbH 12 May 1975 [20 May 1974] 19908/75 Heading B4C [Also in Division B3] In an hydraulically driven tool an electric motor 9 drives an hydraulic motor 11 which reciprocates a piston 15 under control of a rotary valve 14. As shown the hydraulic motor 11 is located in a storage tank 12 which is cooled, along with the motor 9, by a fan 39 which draws in air through holes 40. The valve 14 is rotated either by an hydraulic motor or electric motor and feeds pressure fluid either through port 24 or port 25 to drive the piston 15 and returns fluid to the tank 12. A cushioning spring 18 is provided to absorb recoil of the tool. An air trap 37 is provided for bubbles in the hydraulic fluid. In the idle position of the tool both ports 24, 25 are connected by chamber 16 above the piston to prevent actuation thereof. The tool may be rotated by either an hydraulic or electric motor.
Patent GB-904965-A (GB)
Title: Method of manufacturing laminating sheet materials including paper
Inventor: CAMBRON EMILE ADRIEN
IPC: D21H17/47
Filed: 1960-06-07
Abstract: 904,965. Laminates. SMITH PAPER MILLS Ltd., HOWARD. June 7, 1960, No. 19938/60. Drawings to Specification. Class 140. In making laminates of paper or other sheet materials, such as cloth or asbestos or glass fabrics, impregnated with phenol-formaldehyde resins, or other resins containing formaldehyde, and using methyl alcohol as the solvent for the resin, the methyl alcohol, accompanied by water and excess formaldehyde, is removed from the impregnated material in a drying zone and oxidized to formaldehyde in a catalyst chamber, the formaldehyde so formed being washed from the carrier exhaust gases, e.g. in a series of towers, and returned to the resinmaking plant. Formic acid formed at the same time is removed by passing the wash liquor through an ion-exchange column.
Patent GB-1092017-A (GB)
Title: Refractory brick
IPC: C04B35/01
Filed: 1966-05-05
Abstract: A fired refractory brick consisting of, in weight per cent, 55 to 75 alumina, up to 10 of oxides other than silica, and the balance silica, is impregnated throughout with pitch having a M.Pt. in the range 150-250 DEG  F.  The brick has a porosity of 12 to 21% and contains 5 to 10% of pitch relative to the alumina.  The other oxides specified are titania, calica, iron oxide, magnesia and alkali metal oxides.  Lignin, molasses, tall oil, aqueous chromates and sulphates are used as tempering agents for the brickmaking batch.  Mullite can be formed in situ.
Patent GB-121285-A (GB)
Title: Improvements in Electric Vaporizers and Heaters.
IPC: F24H3/00
Filed: 1918-12-03
Abstract: 121,285. Electro Steam Radiator Co., (Assignees of Lucas, W. B.). Nov. 30, 1917, [Convention date]. Superheating by electricity. - Relates to electric steam generators of the type in which the main body of the water is prevented from contacting with the heating surface and the water is led into contact with the heating surface in small quantities which can be rapidly converted into steam. The invention comprises several constructions in which a tubular heater is employed to one end of which water is supplied, and the steam generated is conducted past the other end whereby it is superheated, the apparatus being used either alone for humidifying the air of a room or combined with a radiator for warming the room. In the construction shown in Fig. 1, the tubular heater 22' having heating wires 24 is mounted on an insulator 22 and surrounds an inner tube 28, closed at one end 29 and provided at the other or water-supply end with slobs 31 around which is located absorbent material 33. Steam is generated from the material 33 and superheated in the passage 32 between the tubes 22<1> and 28 before it passes through apertures 34 in the tube 22' leading to the air, or, as shown, to a radiator 2 which may also have an external supply of steam. The heater 22<1> may be surrounded by an outer tube 16 having apertures 17 so that the steam is further superheated in the passage 35 between the tubes 16 and 22'. The device may be arranged vertically and the inner tube 41, Fig. 3, be connected to a water supply main 41<1> and have the perforations 41<11> at the end remote from the supply. The water entering at the valved inlet 74, Fig. 6, is gradually vaporized and emerges as superheated steam from the outlet 75.
Patent GB-959698-A (GB)
Title: Telephone line concentrator system
IPC: H04Q3/00
Filed: 1961-06-02
Abstract: 959,698. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. June 2, 1961 [March 29, 1961], No. 19998/61. Drawings to Specification. Heading H4K. In a remote concentrator system similar to that of Specification 957, 477, two remote concentrators are provided and if the two concentrators simultaneously demand service from the main exchange, preference is accorded to one of them and the connection to the less preferred concentrator is severed. Specification 957,476 also is referred to.
Patent GB-741696-A (GB)
Title: Means for the prevention of corrosion of steel or iron pipes
Inventor: CLIFT ALFRED
IPC: C23F13/02
Filed: 1953-07-20
Abstract: 741,696. Preventing corrosion. STEWART & LLOYDS, Ltd. July 2,1954 [July 20, 1953; Dec. 8, 1953], Nos. 20030/53 and 34081/53. Class 123(1) Corrosion of iron or steel pipes, especially the heating pipes in the tanks of ships carrying sulphur containing crude oil, is prevented by securing on each of the upper sides of the pipes a, where corrosive solid material would otherwise deposit, a steel or iron shield d, the shields having depending lugs e to which are secured magnesium, &c., anodes f providing cathodic protection of the pipes and shields.
Patent GB-577544-A (GB)
Title: Improvements in or relating to absorption refrigeration systems, and control apparatus therefor
IPC: F25B15/02
Filed: 1943-12-01
Abstract: 577,544. Refrigerating. STEVENS, A. H. (Gibson Electric Refrigerator Corporation). Dec. 1, 1943, No. 20080. [Class 29] [Also in Group XXIX] Absorption systems.-In a system in which the generator 10 is replenished with strong liquor intermittently from the absorption vessel 25, a transfer vessel 35 which is periodically placed in communication alternately with the absorber and generator is located so that liquor flows therefrom to the generator through a conduit 42, a valve-housing 36 and a conduit 46 by a siphon action. Weak liquor flows from the generator through a conduit 33 to a float valve 32 in the absorber vessel, from which depends a conduit 26, 28 having fins 27 exposed to cooling air. Vapour from the generator passes through an analyser column 13, rectifier 17 and pipe 18 to a condenser 19 and thence liquid is forced up to a receiver 21 and the evaporator 22. The vapour from the evaporator first passes through a coil 29 to cool liquor or vapour in a " pressure " vessel 37 and then enters at 30 the rising limb 28 of the liquor pipe and is absorbed. Part of the strong liquor rising through the limb 28 passes by way of a jacket 38 and pipe 39 to the pressure vessel, when a check valve 40 permits. The transfer valve 36 is actuated by the pressure of a thermal medium, preferably refrigerant solution of the same. concentration as that in the generator, in a bulb 50 in the generator and in a conduit 51 connected to the space outside a bellows 53 at the bottom of a valve rod 54. Liquor conduits 41, 44, 42 and a high-pressure gas conduit 45 are connected radially and a liquor conduit 43 axially to a removable cap 68 of the valve casing, while the conduit 46 to the generator is connected to a removable side fitting and the thermal medium conduit 51 is connected to a removable base cap 60, so that the valvehousing may be removed as a whole from the system for inspection &c. without disturbing the conduits. The sliding valve member 70 is pressed to its seat by spring plungers 77, and the valve rod has a collar 85 in the path of rollers 80 carried by a spring-pressed member 81 to ensure a snap action. The transfer action is as follows. When the generator temperature has risen sufficiently the pressure exerted by the thermal medium on the bellows 53 raises the valve and admits high-pressure vapour through conduit 45 to the conduit 43 and to the transfer vessel, which discharges liquor through conduit 42 and the valve-housing to the conduit 46. The thermal element 50 quickly cools and the valve is reversed to admit liquor to flow from the pressure vessel 37 and conduits 41, 42 to the transfer chamber from which vapour rises through conduits 43, 44 to the pressure vessel, where it is absorbed by residual liquor and by weak liquor bleeding through an orifice 49. Liquor flows from the jacket 38 through the check valve 41 into the pressure vessel and fills it, the check valve being closed as soon as the liquor entering through the orifice 49 builds up sufficient pressure.
Patent GB-148204-A (GB)
Title: Improvements in or relating to carburetters for internal combustion motors
IPC: F02M9/02
Filed: 1920-07-09
Abstract: 148,204. Mauvillier, B. Nov. 26, 1913, [Convention date]. No Patent granted (Sealing fee not paid). Spray carburettors.-In carburettors in which the jet has lateral apertures and supplies mixture for slow running, fuel only issues from the jet during normal running. The throttle valve B controlling the mixture supply has two slots n, o for use during slow running. Normally, air entering by the passages g, m is carburetted by fuel issuing from a number of orifices k in the nozzle J, but when the throttle is closed the mixture is obtained from the nozzle J only, air entering the orifices k. A screw p is used to regulate the amount of opening of the slot o, by which air is also admitted during slow running. Secon. dary air is admitted by the suction-actuated valve 1. The mixture is heated by a pipe G, through which some of the exhaust passes. The inlet pipe to the float feed chamber is held down by a spring- pressed rod so that the pipe may be turned in any direction to connect it up to the supply.
Patent GB-1460622-A (GB)
Title: Production of moisture sensitive elements
IPC: C25D11/18
Filed: 1974-05-07
Abstract: 1460622 Alumina films RIKAGAKU KENKYUSHO 7 May 1974 20166/74 Heading C1A [Also in Divisions C7 and G1] A transducer for measuring humidity is prepared by (a) the anodic oxidation of a sheet of aluminium using oxalic acid, sulphuric acid or chromic acid, (b) removing the remaining aluminium using an aqueous solution of mercuric chloride or a methanolic solution of bromine or iodine, (c) heating the remaining porous aluminium oxide film to 1000‹ C. and exposing it to boiling water or steam, or heating the oxide film to 1200‹ C., (d) adding electrodes to either side of the oxide film. The process converts γ-aluminium oxide to another form of oxide, thereby reducing the time taken for stabilizing its electrical conductance.
Patent GB-998787-A (GB)
Title: Detachable lavatory seat
IPC: A47K13/12
Filed: 1963-05-22
Abstract: 998,787. Closet seats. J. LISTERWILLIAMS. June 26, 1964 [May 22, 1963], No. 20333/63. Heading E1C. A detachable closet seat 3, 5 for fitting over a closet seat 2 comprises a similarlyshaped base 3 on which are clips 4 used to clip it over the seat 2. A similarly-shaped foam rubber ring 5 is attached on top of the base 3 the clips 4 are T-shaped metal plates fastened to the sides and top of the base 3 by the arms of each T-plate, the stem of which is curved thereunder to clip it to the closet seat 2. The end portion of the arm of each T-plate nearest the rear of the base 3 is unattached thereto, so that loops 6a attached to the undersurface of the ring 5 are gripped between the end portions and the base 3. A clip 4, formed from a cross-shaped plate, fastened at the front and top of the base 3 has one part of the stem thereof curved under the base 3 to clip it on to the closet seat 2, the other part thereof being curved upward and forward to form a hook-engaging loop 9 beneath the ring 5. A lid 7 closes over the seat 35. The clips 4 need not have unattached portions, the ring 5 being then fastened to the base 3 by tying or press studs.
Patent GB-485898-A (GB)
Title: Improvements in vacuum electric incandescent lamps
IPC: H01K1/14
Filed: 1937-07-22
Abstract: 485,898. Electric incandescent lamp filaments. GENERAL ELECTRIC CO., Ltd. July 22, 1937, No. 20372. Convention date, Dec. 8, 1396. [Class 39 (ii)] In order to increase the efficiency of vacuum electric incandescent lamps the pitch and mandrel ratio of the helical tungsten filaments for use therein are reduced in comparison with gas-filled lamps of corresponding voltage and wattage. In the case of 100-130 volt lamps the pitch of the helix is not greater than 130 per cent, and the mandrel ratio not greater than 2À5. With high voltage lamps, e.g. 200- 260 volts, the pitch is again not greater than 130 per cent, but the mandrel ratio is not greater than 3.5. The " mandrel ratio " is denned as the ratio of the diameter of the mandrel to the diameter of the tungsten wire wound thereon.
Patent GB-406196-A (GB)
Title: Audible warning operated by exhaust gases of an internal combustion engine
IPC: G08B3/06
Filed: 1933-07-19
Abstract: 406,196. Motor horns. AUQUIER, E., 107, Cours Lafayette, Lyons, France. July 19, 1933, No. 20416. [Class 13.] The-exhaust gases from the engine of a motor vehicle are diverted at will through a branch pipe into an expansion chamber by restricting the exhaust outlet and are there adapted to sound a horn. In one embodiment, Fig. 1, the exhaust pipe 1 may be closed by a valve 2 with an asbestos seating 7 and operated by a wire 5 and lever 4, diverting the exhaust gases through a more or less restricted orifice 12 of a size determined by the power of the engine. The orifice 12 communicates with an ovoid chamber 13 into which a reed horn 14 is screwed. In a second embodiment, Fig. 2, the exhaust gases are admitted through a gauze filter into a rectangular chamber 17 provided with a baffle 23, spring-closed release valve 24, liquid discharge orifice 26 and two reed horns 27, 28, the reeds of which are adjustable by screws 29.
Patent GB-451888-A (GB)
Title: Improvements in the control of the supply of air to four-stroke cycle internal combustion engines
IPC: F02D9/00
Filed: 1935-07-18
Abstract: 451,888. Four-stroke engines ; valves &c. HANSEN, P., 3, Svejgaardsvej, Hellerup, near Copenhagen. July 18, 1935, No. 20436. Convention date, Sept. 27, 1934. [Class 7 (vi)] In four - stroke engines, particularly Diesel engines, in which compressed air is admitted either during the latter part of the suction stroke for supercharging, or during the end of the exhaust and the beginning of the suction stroke for scavenging, or in which both these methods are adopted, the admission of both compressed and atmospheric air to the cylinder inlet valve is controlled by a rotary, piston, or other valve which is actuated by the same mechanism as the cylinder inlet valve. Fig. 1 shows a cylinder 1 fitted with inlet valve 2, the admission to which of compressed air from a pipe 16<c> and atmospheric air through a filter 17b is controlled by a rotary valve 11 actuated by linkage 5, 7, 9 from the lever 3 actuating the valve 2. A rod 3a connected to the lever 3 is actuated by a cam or eccentric. The rotary valve 11 is formed with two series of ports 14, 15, Fig. 3, controlling respectively the compressed air supplied to a chamber 16, and atmospheric air admitted to a chamber 17, and the ports 14, 15 are so arranged that, as the valve is oscillated from its closed position, it first admits compressed air through the ports 14 for scavenging and then atmospheric air through the ports 15, and as the valve returns to the closed position, the ports 14 again open to admit supercharging air.
Patent GB-729231-A (GB)
Title: Improvements in or relating to gas cooled dynamoelectric machine
IPC: H02K9/00
Filed: 1952-08-14
Abstract: 729,231. Cooling dynamo-electric machines. ALLIS-CHALMERS MANUFACTURING CO. Aug. 14, 1952 [Aug. 23, 1951], No. 20456/52. Class 35. In an enclosed machine with light gas brought into contact with the slot conductors, the gas is caused to flow at a rate of at least twentyfive cubic feet per minute per kilowatt of heat absorbed, the differential pressure of the gas being at least eight inches of water multiplied by the ratio of the density of the gas in the housing to the density of hydrogen at atmospheric pressure. As shown, fans 40, 41 pass hydrogen or other light gas over end windings 29 into spaced axial duets 43 feeding radial ducts 45 in the stator core, these ducts having sloping ribs 48 (Fig. 2) to guide the gas to the vicinity of the air gap and return it to the outer stator core periphery by ducts 47 to enable it to pass through openings 51, flow over the coolers 53, 54 and return to the fans through apertures 57, 58 near the ends of the machine. Some of the gas emerging from apertures 57 can be passed through a two-stage blower 70, then through a spiral duct serving as a supercharger and be passed through channels in the rotor shaft leading into spaces 64, 65 under the rotor end windings. It then passes axially through duets 66, Fig. 4, formed between rotor conductors and passages 67 can be formed in slot wedges in desired positions, e.g. near the centre of the machine to allow the gas to reach the air gap and be re-circulated. In another form the radial stator ducts are omitted and hydrogen is passed axially through ducts in the stator cove, and tubes of high resistance material in the stator slots, as well as axially through the axial ducts in the rotor slots and all the gas may be circulated (at high pressure) by a single blower at one end.
Patent GB-826249-A (GB)
Title: Electrically operated hair clipping and shaving device
IPC: H01R13/62
Filed: 1956-07-02
Abstract: 826,249. Dry shavers. SUNBEAM CORPORATION. July 2, 1956 [Nov. 1, 1955], No. 20469/56. Class 131 [Also in Group XXXV] The cutter 21 of an electrically operated hair clipper and shaver is driven by one end 55c of a cranked arm 55, the other end of which carries an oscillating armature 52. The cutter comprises a U-shaped channel 21a and two lateral flange portions 21b terminating in the cutting teeth 99. The latter are biased into engagement with the comb against which they lap by springs 85 which are held in recesses 87 in the shaver casing and located by dimples 102 formed on the channel of the cutter. The comb assembly 22, within which the cutter reciprocates, comprises a mushroom-shaped portion 89 carried by a U-shaped channel 88. The arcuate portion is strengthened by a central channel 89a and has a plurality of slots along each edge 97 and 98 to form teeth. The thickness of the sheet metal of which the comb is formed is reduced along one set of teeth 97a so that the two sides of the comb provide both close and spaced cutting for use on legs or underarms respectively, means being provided to ensure correct assembly of cutter within comb, and comb assembly into casing. The arms of the channel 88 are extended to form baffles to deflect hair cuttings through openings 95 in the sides of the comb. The opening 100 in the base of the channel through which the end 55c of the driving arm extends is sealed against the ingress of dust or clippings by a resilient pad 84.
Patent GB-596297-A (GB)
Title: Improvements in or relating to electric generators
IPC: H02K7/18
Filed: 1944-10-23
Abstract: 596,297. Driving dynamos. WEINREB, H. E. Oct. 23, 1944, No. 20508. [Class 35] A portable generator giving current at two voltages is driven by a hand or foot-operated reciprocating member. In the form shown, the permanent magnet k is driven from the foot-operated rack b through gearing and induces high and low tension current in the windings m<1>, n<1>, m<2>, n<2>, connected to two static rectifiers o and h. In a modification, an armature with two commutators enables the rectifiers to be omitted.
Patent GB-121480-A (GB)
Title: Rectifying X-ray Systems.
Inventor: WINTER WILLIAM ALEXANDER
IPC: H05G1/68
Filed: 1918-12-10
Abstract: 121,480. Winter, W. A. Dec. 10, 1917, [Convention date]. - 4rc and spark-gap apparatus, arrangements of; transformers.-In a system for the generation of R÷ntgen rays, the cathode of the tube A is earth-connected and is also connected through the transformer core ti to the secondary terminal 15. The secondary winding consists of sections 8, 9, 10, 11, wound in the same direction and a section 12 wound oppositely to the others. The primary 5 is connected to alternating- current mains 26, 29 through a regulating- switch D. The casing 17 is filled with oil. The earth connexion and the reversed coil 12 act to prevent the production of the inverse current. used without the reverse coil. In a modification the earth connexion is
Patent GB-1013373-A (GB)
Title: Building element
IPC: A47B96/14
Filed: 1962-05-29
Abstract: 1,013,373. Structural elements. G. LANG. May 29, 1962, No. 20607/62. Drawings to Specification. Heading E1K. Angles and channels have in one or more flanges three or more rows of connecting holes the spacing between the rows and between the edges of the flanges and the rows adjacent thereto being the same and the holes being of different sizes in different rows but of the same size in each row. Connecting bolts engage holes. in adapter discs which fit over the large holes.
Patent GB-590906-A (GB)
Title: Improvements in or relating to reamers, broaches, milling cutters and other tools
IPC: B23D77/08
Filed: 1944-10-24
Abstract: 590,906. Milling-cutters; reamers ; broaches. FEAR, R. G. Oct. 24, 1944, No. 20612. Convention date, Oct. 25, 1943. [Class 83 (iii)] In a milling-cutter, reamer, broaching-tool, &c. a helical cutting-member 15, Fig. 1, is formed from sectional tool-steel coiled upon a tapered part 12 of the body 11. End rings 20, 21 provided with spanner flats are screwed on the body at 13, 14 to secure the cutter and adjust its diameter. The shank 12a is formed with flats 12b for connection to driving-mechanism. In a modification, the helix is spaced by the inclusion, between the turns, of a strip of smaller section. The rear ring 21 may carry a finger coacting with graduations on the shank 12a. In another form, a shank 26, Fig. 3, is screwed to carry one end ring 36 and its ends are reduced in diameter and screwed into a driving adaptor 40 and a conical member 27 carrying a split sleeve 32 and the other end ring 31. The cutter 37 is coiled on the sleeve 32 with an interposed strip 38. As applied to a milling-cutter, four strips 54, Fig. 6, of the section shown are coiled on a split sleeve 51 mounted on a taper sleeve 42, keyed to the arbor 41 and secured by end nuts 47, 48. Screwed rings 55, 56 on the sleeve 42 effect the diameter adjustment. The connection for the actuating end of a pull or push broach is illustrated. The final turns of the cutter strip may be left unground to provide a burnishing effect.
Patent GB-946808-A (GB)
Title: Improvements in or relating to automatic sorting devices
IPC: G01N27/72
Filed: 1961-06-07
Abstract: 946,808. Determining physical qualities of materials. C. K. D. PRAHA NARODNI PODNIK. June 7,1961 [Nov.11, 1960],No. 20620/61. Heading G1N. In an apparatus for sorting ferrous objects (piston rings) as a result of the effect of their introduction into a coil J4, Fig. 1, into which they are serially and individually fed from a magazine 1 by a reciprocating feeder 2 for comparison with a standard ring in a second similar coil, a removable stop 5 operated by the ring feeding mechanism is provided to release the ring subsequent to the test, the ring then being deflected by rollers 23 or 24, Fig. 3, on the respective ends of a lever 22 controlled by a solenoid 53 to drop on to the appropriate acceptance or rejection collecting rod 11 or 12 Fig. 2. The apparatus is driven by motor M3 and the sequence is controlled by a number of switches operated by moving elements the testing tray being pivotally mounted on a trolly 14 carrying electrical apparatus, so that its angle of inclination can be adjusted by telescopic arms 26.