baber/WOPTO huggingface dataset:
Patent GB-1186371-A (GB)
Title: Adjustable Current Sensitive Relay
Inventor: WHITE AUBREY HUDSON
IPC: H02H7/085
Filed: 1966-06-06
Abstract: 1,186,371. Transistor switching circuits. JAMES ARCHDALE & CO. Ltd. 6 June, 1967 [6 June, 1966], No. 25081/66. Heading H3T. [Also in Division H2] An adjustable current sensitive relay arrangement for an A.C. machine comprises a current transformer 1 with a movable core for adjusting the coupling between its primary and secondary windings, a rectifying circuit 19 ... 21 for producing a D.C. signal voltage dependent on the A.C. flowing in the primary winding 2, a trigger circuit 24, 23, to an input terminal of which the D.C. signal voltage is applied, an adjustable biasing circuit 26-28 for applying to the input terminal a variable D.C. bias voltage in opposition to the D.C. signal voltage, and an electromagnetic relay 39 operable by the trigger circuit. The arrangement is inoperative when the machine is being started, but is rendered operative when the contacts 18 of a relay 13 open after a time delay. Then the base of a transistor 7 is no longer connected to earth, so that the transistor 7 can provide an A.C. signal to the rectifying circuit 19 ... 21. When the signal voltage overcomes the bias voltage, a transistor 24 conducts and provides a signal to operate a Schmitt trigger 23 with a slight delay imposed by capacitors 32, 34 and a resistor 33. The output of the trigger 23 renders a transistor 42 conductive to energize the relay 39 which closes contacts 38 to light a warning lamp 45 and to complete a circuit through switches 37 and 36, a resistor 40 and a diode 41 to apply a signal to the input of the trigger 23 to keep it operated and the relay 39 energized until the reset switch 36 is opened. If automatic resetting is required a link 49 is opened. The relay 39 also operates its contacts 47, 48 to stop or otherwise control the machine. A meter M enables the initial adjustment, to suit a particular load requirement, to be made, ganged switches 37, 50 being opened.
Patent GB-586707-A (GB)
Title: Improvements in and relating to electric time switches
IPC: G04F3/06
Filed: 1945-09-27
Abstract: 586,707. Actuation of switches. CRYPTON EQUIPMENT, Ltd., SQUIRE, R., and WHELLER, A. G. Sept. 27, 1945, No. 25123. [Class 38 (v)] A microswitch is actuated to open or close a circuit after a predetermined interval of time by a rotary member with which the plunger of the switch is in contact. The rotary member can be pre-set and is provided with a projection or recess which engages the switch plunger when the required time has elapsed. The rotary member may be driven by an electric motor the circuit of which is opened by the operation of the switch. Fig. 2 shows a microswitch h with its plunger g riding on the periphery of a rotary member comprising two discs c, d bolted together and mounted loosely on a spindle b rotated through reduction gearing by an electric motor a. A friction drive is provided between the spindle b and discs c, d by a spring e and two collars f fast on the spindle as shown in Fig. 4. A recess or spigot is provided at a point on the disc c to engage the plunger g and actuate the switch, the disc d being provided with a time scale and with a knurled flange d' by which the discs can be manually rotated for pre-setting and which projects through a window in the frame j. Specification 582,454 is referred to.
Patent GB-878486-A (GB)
Title: Heel insert
IPC: A43B23/28
Filed: 1960-07-19
Abstract: 878,486. Heel inserts for shoes. SCHREIBER, F. July 19, 1960 [Aug. 3, 1959], No. 25143/60. Class 17(2) A heel insert of soft elastic material comprises a heel pad 2 and a heel grip 1 extending therefrom, with transverse ribs 6 on the pad which extend upwardly, as at 6<SP>1</SP>, over part only of the depth of the grip. As shown ribs 6, 6<SP>1</SP>, are of saw-tooth suction and arranged on both surfaces of the heel pad. The heel grip has ribs 3 substantially parallel to the hub pad.
Patent GB-841222-A (GB)
Title: Improvements relating to electric fires
Inventor: BASIL REGINALD VINCENT ZIANI D
IPC: F24C7/06
Filed: 1957-08-09
Abstract: 841,222. Electric fires ; guards ; reflectors. COLE Ltd., E. K. Nov. 4, 1958 [Aug. 9, 1957], No. 25149/57. Classes 39(3) and 126. An electric fire comprises a frame supporting a guard structure which carries a rod element and terminal connections therefor, a troughlike reflector being slidably engaged with the guard structure so as to be removable in an endwise direction therefrom. As shown, end brackets 1 of a supporting frame 2 pivotally carry an arcuate-section guard 4 within each end portion of which is mounted an insulating block 5 to which are attached a terminal pillar 7 and a bracket 6 to hold the screwthreaded rod 8 of an element 9 consisting of a silica tube housing a resistance wire stretched between end caps 13. A reflector 14 has tongues 14a welded near each of its four corners to provide, together with adjacent parts of the reflector, arcuate slots which engage the straight edges of the guard when the reflector is slid into position in an endwise direction. The angular position of the reflector with respect to the element 9 is adjustable, and detachable end shields 15 cover the terminal connections and ends of the guard structure.
Patent GB-229973-A (GB)
Title: Process for the production of hydrocyanic acid
IPC: C01C3/02
Filed: 1923-12-01
Abstract: Catalysts employed for the production of hydrocyanic acid from gaseous carbon and nitrogen compounds consist of metal oxides, aluminium, thorium, zirconium, and cerium oxides being mentioned. They may be employed with carbides and silicides which may act as carriers; for instance, thorium oxide may be precipitated upon silicon carbide.  Specification 229,774 is referred to.ALSO:In the catalytic production of hydrocyanic acid from gaseous or volatile carbon and nitrogen compounds such as carbon monoxide and ammonia, a considerable quantity of a protective gas such as hydrogen or nitrogen or a mixture of these gases is added to the reaction mixture, for instance 2 to 10 times the volume of the ammonia employed.  Preferably, the carbon compound is employed in excess of the nitrogen compound, for instance carbon monoxide may be used in 2 to 10 times the volume of the ammonia.  Gases containing carbon monoxide may be employed, such as water gas, coke oven gas, and gases from molasses waste, for instance 5 to 10 volumes of water gas may be used with 1 volume of ammonia.  The catalysts employed are preferably metal oxides, aluminium, thorium, zirconium and cerium oxides being mentioned, and they may be employed with carbides and silicides which may act as carriers, for instance, thorium oxide may be precipitated upon silicon carbide.  Specification 229,774 is referred to.
Patent GB-1388772-A (GB)
Title: Semiconductor devices and a method of producing the same
IPC: H01L21/285
Filed: 1972-05-30
Abstract: 1388772 Semi-conductor devices FUJITSU Ltd 30 May 1972 [28 May 1971 12 Aug 1971] 25339/72 Heading H1K A field effect transistor of the MOS type includes a polycrystalline silicon electrode in contact with a source or drain region of the device and of the same conductivity type as the region. The silicon electrode may be used to form the regions by diffusion from an inpurity doped silicon layer forming the electrode. Alternatively the impurity may come from a doped glass layer above the electrode layer, the dopants passing through the electrode layer into the substrate again to form source and drain regions. In one method the doped polycrystalline layer 103 is deposited on an apertured silicon dioxide layer 102 on a silicon substrate 101. A protective SiO2 layer 104 may be deposited on layer 103 and an aperture corresponding to the channel region formed through the layers. The structure is heated to drive in the dopant, forming regions 105, 106 and also to form the gate oxide layer 107. A passication layer 108 of of Si3N4 or Al2O3 may be deposited prior to formation of gate 110 and source and drain 111 electrodes of aluminium, silicon or molybdenum. In using a doped glass layer complementary F.E.T.'s may be formed by using differently doped layers over a single silicon electrode layer. Dopants may be of boron or phosphorus.
Patent GB-284961-A (GB)
Title: Improvements relating to electric water heaters
IPC: F24H1/10
Filed: 1927-09-26
Abstract: 284,961. Huwyler, A. Sept. 26, 1927. Heating by electricity.-In an electric water heater comprising cylindrical heating elements 7 and cylindrical sheet metal partitions 8 forming ascending and descending annular water channels 9, the mercury tube switch 22 for the heating elements is separately and manually closed by the push 34 and is interlocked in the closed position with the water tap 10, 11 only when the latter has been opened to cause a flow of water from the inlet 3. The tap comprises a lift member 10 and a piston member 12 and is operated by the rotation of a sleeve 17 on a screwed member 16. A collar 19 is disposed on the sleeve 17 so that when the valve members are raised to open the tap a rod 18, terminating in a plate spring 36, slides upwards and pushes over a catchpawl 35 so as to lie in the path of a pin 30 on the switch mechanism whereby the switch, when manually closed, is held in the closed position. When the tap is closed the plate spring slides downwards and operates on the heel 37 of the catchpawl 35 which is thereby moved back to release the switch mechanism, the switch is then automatically closed by the action of the spring 33.
Patent GB-687196-A (GB)
Title: Improvements in or relating to heat-exchange bottoms for column-type apparatus effecting contact between fluids and methods of effecting the contact
IPC: B01D3/22
Filed: 1948-09-30
Abstract: 687,196. Treating liquids with gases. KITTEL, W. Sept. 30, 1948 [Dec. 16, 1941], No. 25497/48. Class 55 (ii). In columnar apparatus for treating liquids with gases or steam comprising a series of superposed plates with common passages for gas and liquid therethrough, each plate is divided into two or more zones in each of which the passages are shaped at an inclination to that of adjacent gases and so as to cause the issuing gas to impart a motion to the superincumbent liquid tangential with respect to the plate axis and radially inwardly or outwardly according to the indication of the passages. Surplus liquid may descend the column through downtakes alternately at the centre and periphery of successive plates. In a plate divided into eight zones a ... h with passages arranged in parallel rows as indicated in Fig. 5, the gas flow C in zones b ... f and h is towards the centre of the plate and a liquid flow in this direction is imparted. In the arrangement of Fig. 6 the radial component is suppressed and a rotary motion with high angular momentum is induced. Expanded or corrugated metal plates may be employed with bent portions adjacent the apertures 22 ; arrows G, L indicate the flow of gas and liquid respectively.
Patent GB-1314418-A (GB)
Title: Automatic tool loader for a machine tool
IPC: B23Q3/155
Filed: 1970-05-27
Abstract: 1314418 Tool changers CNMP BERTHIEZ 27 May 1970 [6 June 1969] 25533/70 Headings B3B and B3T An automatic tool loader for a machine tool comprises a magazine 9 containing a plurality of tool holders 1 in peripheral cut-outs 24 and a handling device 26 having a resiliently biased retaining latch for removing a required toolholder 1, from the magazine 9 and for supplying the tool-holder to a machine tool, the magazine and handling device being relatively movable to select the required tool-holder, and on the magazine 9 there is provided for each toolholder a resiliently biased retaining latch which is disengaged by movement of the tool-holder against the latch to supply the required toolholder to the machine tool, the handling device 26 holding a tool-holder with a resiliently biased connecting force which is sufficient to grip and remove a tool-holder from the machine tool but is overcome when a tool-holder is retained in the machine tool, or is returned to the magazine, to disconnect the handling device from the toolholder. The magazine retaining force is similarly overcome when the handling device 26 removes a tool-holder from the magazine. In the embodiment described the machine tool is a vertical lathe having a tool slide 2 for receiving tool-holders 1. The magazine 9 is a drum rotatable about a vertical column 5. The column 5 supports a structure 28, 29 along which the handling device 26 is moved by a ram 31, 31a. The handling device 26 is in the form of a fork having prongs 34 that engage beneath shoulders 32 on the tool holders, cam faces 35, 36 ensuring the tool-holder 1 is lifted slightly on engagement. The magazine retaining latches comprise spring detents (42), (43) (Fig. 2, not shown), that engage in a recess (44) in toolholder, and the handling device retaining latch comprises a spring detent (37), (38) that engages in a further recess (39) in the tool-holder. The operation is programme-controlled and microswitches are operated by the handling device and magazine. The magazine 9 is indexed by a motor 11 through a clutch 13, a brake 12, a reduction gear 14, pinion 15 and gear-wheel 10. A number of micro-switches, one for each toolholder position, are arranged around a plate 4 to identify and bring a required tool-holder opposite the handling device 26. The magazine is locked by a spring engaged, pneumatically released, push rod 17. The magazine is roughly positioned by the motor 11 and the brake 12 is temporarily released to allow a conical end on the rod 17 to engage a conical socket 18 in the gear 10 to accurately position the magazine. In various modifications the magazine may be rectilinear and perform reciprocating movements or it may move in a closed path comprising straight portions connected by semi-circular portions.
Patent GB-330188-A (GB)
Title: Case-hardening furnace with charging device of worm type
IPC: C23C8/06
Filed: 1929-08-22
Abstract: 330,188. Lindhorst, H. Aug. 22, 1929. Charging.-In a rotary case-hardening furnace, to the drum n of which hardening powder is continuously supplied by a screw s, the latter is welded to a surrounding tube r secured to the drum n and is rotatably mounted on a fixed pyrometer l carried by the end cover d. The powder is delivered from the supply hopper a<2> to a chamber c in free communication with the screw b by a rotary pocketed feeder e enclosed in a casing b and driven, through adjustable gearing h, i, from the drive w, x for the drum n. The feeder e is divided by radial partitions into compartments e<2> each provided at its lower end with a flap f which opens to discharge the powder into the chamber c when the pocket comes into position over an opening formed in the floor b<1> of the casing b on the side opposite to the hopper a<2>. To ensure that the flaps f are not prevented from opening by the pressure in the furnace, each pocket e' is provided with an aperture e' adapted to register when the pocket is over the opening in the floor b<1>, with a by-pass k leading from the chamber c. As the empty pocket moves away from the feeding position, the flap f is closed by the engagement of a flat spring g with the floor b<1> and the pressure existing in the pocket is released when the aperture e<3> comes into register with an outlet o to the atmosphere.
Patent GB-736420-A (GB)
Title: Etherified urea-formaldehyde condensation products
IPC: C08G12/40
Filed: 1952-10-13
Abstract: The viscosity and compatibility with hydrocarbons of a partially etherified urea-formaldehyde syrup is increased by heating the syrup with pentaerythritol and maleic acid or anhydride in a total amount not exceeding 1.5 per cent by weight of the syrup.  In examples, pentaerythritol was added to a butylated urea-formaldehyde syrup of pH 5.0 and the mixture refluxed for 15 minutes.  Maleic acid was then added and the mixture further refluxed for 15 minutes.  Then either (1) the syrup was allowed to cool and diluted with butyl alcohol, or (2) the pH of the syrup was adjusted to 4.6 with a saturated solution of hexamethylene tetramine in butyl alcohol.
Patent GB-338869-A (GB)
Title: Improvements in the utilisation of gases which are produced through distillation or similar treatment of bituminous materials, especially of the by-products of gas- and coke manufacturing plants
IPC: C05C3/00
Filed: 1929-08-22
Abstract: 338,869. Tern, R. Aug. 22, 1929 Manures.-A solid manuring product consisting of ammonium sulphate, sulphite, imido-sulphonate, and other compounds of ammonium and sulphur, is obtained by mixing the gases obtained by roasting crude sulphur or spent oxide from gas and coke manufacturing plants with the ammonia-containing gases obtained by heating the gas-water from the scrubbers and subjecting the mixture to a. high tension current at 70,000 to 80,000 volts. The product may be electrically precipitated and re-crystallized.
Patent GB-346251-A (GB)
Title: Improvements in and relating to the construction of flexible aeroplane wings having a variable profile
IPC: B64C3/48
Filed: 1930-08-27
Abstract: 346,251. Aircraft planes; controlling. ANTONI, U., 67, Via Ugo Foscolo, Viareggio, Italy. Aug. 27, 1930, No. 25607. [Class 4.] In flexible aeroplane wings having a variable profile in which the wing deformation in the part controlled by the pilot is obtained by means of levers pivoted to front and rear wing spars and connected together and to operating rods and links the pivots of one or both of the levers is displaced relatively to the lower profile strip which is rigidly fixed at its ends to recesses in the levers. As shown the pivot 13 of the lever 1 is displaced in relation to the plane or surface of the lower flexible strips 8 and the levers 1, 2 are connected by a link 15 to an arm 16 mounted on the operating shaft 17, the arm 16 being also connected at 22 to the upper flexible strips 7. The upper flexible strips 7 are fixedly connected to the levers 1 at 9 and slidably at 10 to the lever 2 while the lower strips are fixedly connected to both levers at 11, 12. In order to permit the use of cross wires bracing the spars 5, 6 together in certain of the wing elements the levers 1, 2 are shortened and are not connected to the operating shaft 17, In this case these shortened levers are connected rigidly to adjacent levers by rigid members 24, 25, 26. That portion of the wing shown between the lines AA-BB, Fig. 4, which flexes outside the control of the pilot comprises rigid portions forward of the rear spar 6 and flexible strips 30, 31, Fig. 3, connected to a bracket 35 and interconnected at 32, 33 in such a manner that they cannot approach one another but may recede from one another under the control of a spring 34. The automatic balancing effect is obtained by varying the strips 30, 31 as regards relative length, cross section, flexibility, &c. Specification 269,848, [Class 4, Aeronautics], is referred to.
Patent GB-263096-A (GB)
Title: Improvements in sheet feed mechanism
IPC: B65H9/16
Filed: 1926-10-14
Abstract: 263,096. Spiess, G. Dec. 18, 1925, [Convention date]. Dropping-roller feeds; sheet carriers and forwarders; sheet feed-tables; sheet-registering devices.-In mechanism for feeding paper, cardboard, or other sheets to printing, folding, or other machines, the sheets after being fed forward substantially without slip are registered laterally against a side gauge 39, Fig. 2, as they are being conveyed towards rising and falling front stops 24. The sheets, which may be separated from a pile 4, Fig. 1, manually, by suction, or by means of an adjustable dropping roller 34, are fed forward by means of endless bands 6 passing over a table 5, the speed of the bands increasing and then decreasing before the sheet reaches the registering devices. A driving shaft 11 has eccentrically mounted thereon a pinion 12 which is coupled to a pinion 16, having chain connection 17 with a pinion 9 over which passes one end of the bands 6, by means of a pinion 15 carried by links 13, 14 pivoted to the shafts of the pinion 16, 12 respectively. Rollers 19 mounted in arms 18 pivoted on guides 18a adjustable on guide rods 20 fixed to transverse supports 21, co-operate with the band 9 to feed the sheets. From the bands 6 the sheets pass on to feed rollers 8 inclined to the line of feed so as to adjust the lateral edges of the sheets against the side gauge 39, and rollers 29 similarly mounted to the rollers 19 cooperate with the rollers 8 for this purpose. A second arm 32 is pivoted to the guide 31 of each roller 29 and is connected to the arm 28 of the roller by means of a spring 30, so that by means of a set-screw 33 thereon the pressure of the rollers 29 can be adjusted. The sheets pass from the rollers 8 to a plate 23 the edge of which is notched to allow the front stops 24 and the machine grippers to ccme into operation. Specification 262,729 is referred to.
Patent GB-425526-A (GB)
Title: A new or improved bin for the reception of milk or other bottles delivered to dwelling houses or other establishments
IPC: A47G29/20
Filed: 1934-09-06
Abstract: 425,526. Receiving-devices for doors &c. INSTONE, S. H., 9, Nutford Place, Seymour Place, London. Sept. 6, 1934, No. 25634. [Class 18] A bin for receiving milk &c. bottles comprises an open sided casing 5, preferably with upwardly tapering sides, adapted to be mounted on the inside of the outer door 1 of a dwelling house &c., with the open side to the door, the lower part of the casing being divided by a wedge-shaped partition 9 to form bottle compartments 7, 8, which are disposed in inverted-V relation, and a door 10, which may be formed with sight openings 1,4, in the casing 5 to enable the placing in and removal from the compartments, of bottles. The aperture 2 in the house door 1 is fitted with a hinged flap 3 and mats 13 of sponge rubber may be provided in the compartments 7, 8.
Patent GB-639593-A (GB)
Title: Improvements in or relating to inflatable articles and valves therefor
IPC: A63H27/10
Filed: 1947-09-20
Abstract: 639,593. Inflatable toys. CASCELLOID, Ltd., SENIOR, H., and COPE, G. S. Sept. 20, 1947, No. 25646. [Class 132 (iii)] [Also in Group XXIX] An inflatable toy fish comprises two shaped sheets 9, 10 of flexible polymerized vinyl chloride sealed together at their edges. Scales, eyes, &c. are painted on the sheets. An inflation valve 1 (see Group XXIX) is secured to one of the sheets before the sealing operation.
Patent GB-1503828-A (GB)
Title: Method of enumerating bacteria
IPC: C12Q1/06
Filed: 1976-06-22
Abstract: 1503828 Enumerating bacteria STRATHCLYDE UNIVERSITY OF 22 June 1976 25802/76 Heading C6F A method of staining micro-organisms to facilitate counting comprises the steps of providing a suspension of micro-organisms in a liquid medium, reacting the micro-organisms in the suspended state with phosphate ions whereby phosphate ions react at active sites on the micro-organisms to produce phosphate derivatives of the micro-organisms having at said sites polydentate phosphate groups, and treating the phosphate derivatives with a phosphate-reactive fluorochrome dye (specified) which thereby combines chemically with the microorganisms via the intermediate phosphate groups. Preferably the phosphate derivatives are treated with the fluorochrome dye in the suspended state in liquid medium to produce a liquid specimen for microscopic examination in the liquid state. Alternatively, the phosphate derivatives are applied to a carrier substrate and fixed thereto using a liquid fixative, and the fixed sample is brought into contact with the fluorochrome dye to be stained, the stained sample being dried to provide on the substrate a dry specimen for microscopic examination in the dry state. The micro-organisms may be subjected to further chemical modifications e.g. methylation, esterification, hydrolysis, oxidation or reaction with sulphur dioxide, whereby to increase the number of active sites available. They may also be treated with an optical brightening agent. Many detailed Examples are provided.
Patent GB-686992-A (GB)
Title: Pipe connection
IPC: F16L19/04
Filed: 1949-10-07
Abstract: 686,992. Pipe couplings. SCOTT. W. Jan. 8, 1951 [Oct. 7, 1949], No. 25804/49. Class 99 (i). The flared end 2 of a pipe 1 is clamped by a nut 3 between a male coned seating 8 screwed into a socket 6, and the female coned end 5 of a ring 4.