baber/WOPTO huggingface dataset:
Patent GB-947009-A (GB)
Title: Improvements in and relating to flameproof electric lamp and like housings
Inventor: COURT RONALD ARTHUR BRADLEY
IPC: F21V25/04
Filed: 1962-03-20
Abstract: 947,009. Lampholders; switch cases. WALSALL CONDUITS Ltd. March 20, 1962, No. 10540/62. Headings H2B and H2E. [Also in Division F4] A flameproof housing for a disconnectable circuit element, for example, a lamp, comprises an auxiliary flameproof enclosure containing switch contacts which are opened when the housing is opened, thereby ensuring the absence of sparking when the circuit element is removed, the movable member of the switch being spring-biased to its open position but urged by stronger springs to its closed condition by the act of closing the flameproof housing. The main body 7 of a lamp fitting has a block 16 screwed therein and carrying terminals 18 having spring-urged pins 20. A lamp socket 28 is carried on a member 25 which is a close sliding fit inside the lower end of block 16 to provide an auxiliary flameproof enclosure for contacts 27 which co-operate with pins 20. The member 25 is retained and guided by three pins 30 (only one shown) and is urged by springs 33 towards a position wherein contacts 27 are out of engagement with pins 20 (Fig. 3, not shown), but is normally held in the position shown by three stronger springs 38 compressed by engagement of pins 35 with the flange 39 of ring member 5. Member 5 carries a well glass 1 sealed therein by cement 6 and is secured to body 7 by four bolts (Fig. 2, not shown).
Patent GB-434141-A (GB)
Title: Improvements in carrying out catalytic reactions with improved sulphide catalysts
IPC: C10G1/08
Filed: 1934-04-07
Abstract: Metal sulphide catalysts for destructive hydrogenation and other reactions are prepared by the action of sulpho salts on compounds of metals (other than alkali and alkaline earth metals) while dispersed in a liquid medium.  The sulpho salts of copper, tin, vanadium, antimony, arsenic, molybdenum, tungsten, chromium, rhenium, and germanium containing an alkali or alkaline earth metal or ammonium as cation are mentioned.  The reacting metal compound may be an oxide, hydroxide, or salt of a heavy metal of Groups I to VIII, numerous examples being specified.  According to a typical example of procedure, a solution of titanium tetrachloride in benzene is added to a solution of ammonium sulphotungstate in cyclohexylamine, the precipitate is filtered, washed, and treated with hydrogen at 300--400 DEG  C.
Patent GB-105899-A (GB)
IPC: G01F3/30
Abstract: 105,899. Hinman, C. W., and Hinman, W. H. April 27, 1916, [Convention date]. Gas meters.-A gas meter of the type in which a partitioned drum revolves in liquid has partitions of the form shown in Fig. 5. The sections 8, 9, 10 thereof are angularly disposed relatively to one another, and are co-planar with and secured to radial and diagonal arms 38, 42 extending from a middle hub 36 on the drum shaft 5, Fig. 2. Adjacent sections 11, 12, 13, 14, all oblique to the axis of the drum and angularly arranged with relation to each other, connect the sections 8, 9, 10, the inner edges of which are parallel to the drum axis and to an inner section 15 extending substantially the length of the drum. The sections are so arranged with respect to one another as to prevent the pocketing of gas between adjacent sections. The radial arms 38 and others 32 at the extremities of the drum are stayed by tangential braces 39, 35 extending from hubs 36, 30 to the arms at points between the inner and outer edges of the partitions, and are attached at the circumference of the drum to angle-iron rings 33 on the inner surface of the drum, rivets, &c., passing through the rings 33 and shell 7 of the drum to flat outer rings 34. The drum shaft 5 is placed slightly lower than the axis of the outer casing to increase the space above the water level.
Patent GB-270479-A (GB)
Title: Improvements in trawl nets
IPC: A01K73/02
Filed: 1926-04-22
Abstract: 270,479. Harms, F. April 22, 1926. Nets.-The wings of a trawl net are shaped so that the number of meshes in the rows diminishes by two per row from root to tip and the wings are jointed to a narrow transverse piece t, w, n, o extending across the net.
Patent GB-1145450-A (GB)
Title: Method of making conductive coatings on the surface of an encapsulated electrical device
IPC: H01F41/00
Filed: 1967-03-07
Abstract: 1,145,450. Encapsulating electrical devices. GENERAL ELECTRIC CO. 7 March, 1967 [8 April, 1966], No. 10632/67. Heading B5A. [Also in Divisions B2 and H1] Thermally stable electrically conductive surfaces are provided on an electrical structure, e.g. an encapsulated coil unit comprising high and low voltage coils 20, 22, by coating, e.g. by spraying or brushing, the appropriate mould surfaces, coated with release agent, e.g. silicone oil, with a conductive coating 70 of conductive particles in a liquid carrier, prior to inserting the coils 20, 22 into the mould on plastics spacers 60; the closed mould is then evacuated through opening 68 as encapsulating resin, e.g. epoxy resin, is admitted through opening 66 to fill the mould and which resin is then cured in the sealed mould, e.g. in an oven at 125 C. for 16 hours, whereby the coating 70, the liquid carrier whereof preferably incorporates a similar resin to the encapsulating resin, is integrally moulded on to the surface of the encapsulated unit. The liquid carrier may include water or solvents which may be removed by heating the mould prior to moulding. The conducting particles may be pigment or colloidal graphite, carbon black, silver, copper or aluminium. Graphite and acetylene black formulations with alkyd and phenolic varnish, and graphite formulations with water or epoxy resin are specified.
Patent GB-675563-A (GB)
Title: Improvements in or relating to acrobatic toys
IPC: A63H13/12
Filed: 1949-04-21
Abstract: 675,563. Mechanical toys. MEDLER, F. G., and MEDLER, L. J. April 21, 1950 [April 21, 1949], No. 10656/49. Class 132 (iii). An acrobatic toy, Fig. 1, comprises a pair of straight rods or wires 1, 2 of which 1 passes through a loop 3 formed in rod 2 to provide relative pivotal and sliding movement of the rods. The figure has a body 9 with arm and leg members 7a, 8a rigidly interconnected and articulated at 7b, 8b. In a further embodiment, Fig. 3 (not shown), one rod is rigidly attached to the casing of a motor and the other rod is pivoted to a crank pin on a disc preferably driven through reduction gear by the motor.
Patent GB-236000-A (GB)
Title: Improvements in or relating to the constructions of ceilings, walls, and the like
IPC: E04F13/04
Filed: 1924-04-30
Abstract: 236,000. Ritchie, A. M. April 30, 1924. Wall and ceiling coverings.-A surfacing material for ceilings, walls, and like surfaces consists of a backing of strawboard, cardboard, paper, or the like which is flexible in one direction and rigid in the transverse direction, and a facing of flat reed-matting, canvas, or like material which is affixed by marine glue or similar adhesive. In the form shown in Fig. 2, the backing consists of a flat layer a and a corrugated layer b, and the facing c is reed-matting. The whole may be primed with paint or coated with a waterproofing composition. The edges of the backing are preferably bevelled.
Patent GB-341794-A (GB)
Title: Improvements in or relating to electric reversing switches
IPC: H01H9/22
Filed: 1930-04-04
Abstract: 341,794. Switch covers. CONSOLIDATED PNEUMATIC TOOL CO., Ltd., 170, Piccadilly, and SCOTT, G., 20, Eswyn Road, Tooting, both in London. April 4, 1930, No. 10743. [Class 38 (v).] Switch mechanism interlocking with lids.-In a reversing switch of the type described in Specification 341,763 in which the shaft c carrying the contacts is axially movable as well as rotatable, the squared end of the shaft c enters a squared socket member e carrying a double-hooked member h adapted, when the switch is in its " on " or "reversing " position, to engage studs j on the lid a and baseplate b of the casing, thus preventing the lid from being opened. The socket member e has a flange f that rotates in grooves g in the parts a, b.
Patent GB-1465556-A (GB)
Title: Method of testing a multi-colour electrophotographic printing machine
IPC: G03G15/01
Filed: 1974-03-11
Abstract: 1465556 Electro-photography; controlling colour density XEROX CORP 11 March 1974 [12 March 1973] 10756/74 Headings G2H and G2X] The colour balance and the densities of the individual colour separation images in a multi-colour, multiple developer unit electro-photographic copier are monitored by comparing test prints of a preprepared standard card with the original. Adjustment of the toner concentrations in the developer units, the electrical biases applied in developing and the exposure is made in accordance with the results of the comparison. In particular, the developer units may be set to produce print densities which are not sensitive to the addition of replenishing toner to their developers. Preferably the standard card includes areas of differing colour, density and spectral qualities, so related to the properties of the copier that some do not print when the copier is correctly adjusted, others print correctly and a third group give an indication of colour mixing by displaying the reproduction of complementary colours.
Patent GB-541823-A (GB)
Title: Improvements in filing or abrading machines
IPC: B23D67/00
Filed: 1940-06-22
Abstract: 541,823. Broaching. SHAW, H. June 22, 1940, No. 10760. [Class 83 (iii)] [Also in Group XXIII] In a machine of the kind comprising an endless band provided with files or abrasive elements, a support for the front run of the band abuts on a support which is of not greater width than the band and is provided with an adjustable guide for preventing lateral movement of the band. A band 18, Figs. 2 and 7, passing around upper and lower pulleys and carrying files or abrasive elements 27, abuts at the front on a support 33 consisting of bars 35, 36 which are of the same width as the band and are formed with a groove for receiving the file-securing rivets 29. The oars are secured by screws to vertically adjustable blocks 38, 43 which have side flanges for guiding the band and files. The bars are connected by a flanged guide-block 46, and the bar 35 carries another flanged, vertically adjustable guide-block 47. Either of the bars 35, 36 can be removed. Each file 27 is secured at one end by means of one or more rivets 29 or screws, and has the other end free so that it can separate from the band when the latter is moving around the pulleys. Alternatively, the files may be secured at the middle so as to leave both ends free. On the straight parts of the band, pins 30 engage holes 31 in the files to prevent lateral movement thereof. The end files have inclined abutting ends. For connecting the ends of the bands, one end is provided with an extension 19 having a key-hole slot 22 for engaging a headed pin 25 on the other end.
Patent GB-559121-A (GB)
Title: Improvements relating to electric signalling systems
IPC: H04Q1/30
Filed: 1942-07-31
Abstract: 559,121. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and FOOT, G. H. July 31, 1942, No. 10773. [Class 40 (iv)] [Also in Group XL] An arrangement for receiving and repeating current impulses comprises two relays which are controlled by condenser timing circuits so that one operates after the current has been rising for a certain period and the other operates after the current has been decaying for the same period. The impulses may be of direct or alternating current or of modulated carrier current. As shown, A.C. impulses are applied over a transformer TR1 by way of a circuit SC1 to the grid of a valve VI controlling relay A and by way of circuits SC2, 3 to the grid of a valve V2 controlling relay B, the impulses being repeated by the successive operation of relays A, B. These circuits comprise condensers and resistances of suitable values and are polarised by rectifiers D1 .. 3. On the arrival of an impulse, condensers C1, 2 charge and relay A operates when the grid potential of V1 becomes sufficiently positive, while equal and opposite potentials build up on condensers C3, 4 and C5, 6. When the impulse starts to decay, C5, 6 discharge more rapidly than C3, 4, making the grid potential of V2 more positive and in due course operating relay B. Condensers C1, 2 discharge less rapidly than C5, 6 but more rapidly than C3, 4, so that relay A eventually falls back before relay B.
Patent GB-583267-A (GB)
Title: Improvements in or relating to stands for globes
IPC: G09B27/08
Filed: 1944-06-05
Abstract: 583,267. Globes. PHILIP & SON, Ltd., G., and GOODALL, G. June 5, 1944, No. 10811. [Class 146 (ii)] A stand for a terrestial or celestial globe 21 comprises a hollow base 10 open at both ends, one end being capable of supporting the globe directly or of receiving a cover part 11 having means for locating or supporting a meridian or half-meridian band 16 to which the globe can be rotatably secured. Ribs 13 on the cover 11 fit into slots 12 in the base which also receives a cylindrical projection 14 on the cover. A screw 17 secures the band 16 in slots 15 in the base. Graduations are provided on the inner surface 19 of the base so that by inspection of the open end of the base when the latter is placed over a part of the surface of the globe measurements of distance may be made. A transparent disc 20 fixed or detachably secured to the base is graduated in squares for the estimation of areas.
Patent GB-908348-A (GB)
Title: Improvements in or relating to methods of treating molten metal
IPC: C21C7/10
Filed: 1959-03-31
Abstract: 908,348. Treating molten metals. FISCHER A.G., GEORG. March 31, 1959 [March 28, 1958], No. 10854/59. Classes 72 and 82 (1). Molten metal is treated by pouring it from an upper ladle 1 into an air-tight chamber 3 where a jet 8 of gas or vapour is directed into the metal stream at approximately its point of entry to the chamber to penetrate and divide the stream. Excess gas is vented to atmosphere through radial slots 14, filter material 15 and orifice 14. The treatment degasses the metal if an inert gas is used or adds nitrogen, oxygen or carbon to the metal if a gas such as nitrogen, oxygen, air, steam, carbon monoxide or methane is used. Vapour, e.g. water or metal vapour, may be used for the jet instead of gas. Powdered substances which vaporize on penetration into the melt, e.g. Ca, Mg or alloys thereof may be added to the jet.
Patent GB-1128129-A (GB)
Title: Power transmission with a regulable turbo-coupling
IPC: F16H47/00
Filed: 1967-03-08
Abstract: 1,128,129. Variable speed gear. C. KNAPP, and H. W. SCHWEPPENHAUSER. 8 March, 1967 [8 March, 1966], No. 10906/67. Heading F2D. A variable speed gear for a boiler feed pump comprises a controlled hydrodynamic coupling in series with a variable ratio planet gear the reaction element of which is controlled by an auxiliary power source or is driven from the input shaft through an auxiliary variable speed gear to effect ratio changes. In Fig. 1 planets 5 on an input carrier 4 mesh a reaction ring gear 6 and a sun gear 7 which drives an output shaft 25 through a fluid coupling 9 the filling of which is controlled by a scoop tube 10 during starting. The ratio of the gear is controlled by a gear 22 meshing external teeth on the ring gear 6 and driven from the input shaft through a variable speed hydrostatic gear 16, 18. The fluid coupling 9 may be provided with a lock-up clutch 20. In Fig. 2 (not shown) the gear (38) meshing external teeth on the ring gear is driven by a variable speed electric motor (40). The gear (38) may be held by a brake (39) and the output shaft may be held by a brake (42). In Fig. 3 planets 59 on a reaction carrier 58 mesh a sun gear 57 driven from an input shaft 52 through a variably filled fluid coupling 53 on an output ring gear 60 which may be held by a brake 67. The planet carrier 58 may be held by a brake 73 or driven by an electric motor. 68 at two speeds in either direction to provide five mechanical gear ratios. The ratio is continuously varied between the mechanical gear ratios by varying the filling of the fluid coupling. Fig. 4 (not shown) is similar to Fig. 3 but the sun gear is fast with the output shaft and the ring gear is connected to the input shaft. An additional fluid coupling is also provided between the electric motor (68) and planet carrier (63). In Fig. 7 (not shown) a single main motor (90) and an auxiliary motor (91) drive two output shafts (100, 101) through two gears which are similar to the gear in Fig. 4. Figs. 5 and 6 (not shown) are graphs of efficiency and slip against the ratio of output speed to maximum output speed.
Patent GB-109478-A (GB)
IPC: G01G19/10
Abstract: 109,478. Troll, F. J. Sept. 12, 1916. Apparatus fitted to vehicles.-Relates to a motortruck or the like fitted with means for ascertaining the load on the vehicle, for preventing the operation of the driving motor if the vehicle is overloaded, and for counting the total load handled and the number of times overloading occurs. The bottom 13, Fig. 3, of the truck body is tached to grooved longitudinal members 16, Figs. 1 and 3, which rest upon rubber tyres 26 supported on the chassis A, side plates 19 forming guides during the compression of the tubes. The tubes contain fluid and are connected by pipes 29, Fig. 1, to a cylinder 32 and thence to a Bourdon pressure gauge 34 which indicates the load on the vehicle in pounds. By adjusting a piston within the cylinder 32, the pointer of the gauge may be adjusted to the noload position when the vehicle is empty. The indicating spindle of the pressure gauge carries a wheel which actuates one counter to add up the successive loads placed m the vehicle, and actuates a second counter each time the load applied exceeds a predetermined amount. A branch pipe 51 may be led to a cylinder 52 containing a spring-pressed piston the movement of which cuts off the gas supply to the motor when the vehicle is overloaded. In addition to the rubber tube 26, Fig. 3, springs may be fitted between the part 16 and the chassis, the walls of the tube then being thinner. The tube 16 may be enclosed in a steel split sleeve or may be of rectangular form.
Patent GB-1489106-A (GB)
Title: Hardening of steel workpieces
IPC: C21D1/74
Filed: 1975-03-17
Abstract: 1489106 Carburizing steel workpieces HAWERA PROBST KG HARTMETALL-WERKZEUGFABRIK RAVENSBURG 17 March 1975 [18 March 1974 5 Dec 1974] 10959/75 Heading C7U Steel workpieces are hardened by carburizing with a mixture of purified air and propane, at austenitizing temperature and then cooled. The workpiece is carried on conveyer 1 into the furnace chamber 4, heated by elements (not shown), having a gas outlet 5a in the form of a curved pipe supplying the air/propane mixture, and then into cooling zone 12 which also has an air/propane atmosphere. The air and propane are supplied from containers 20, 21 through pipes 8, 7 to pipe 6. Alternatively, the outlet 5a may be a straight pipe, lying parallel to and above the belt 1 (Figs 1, 2, not shown), or may take the form of two pipes parallel to and alongside the belt (Figs. 4-6, not shown). By this method, the core and surface may be uniformly hardened, but the surface hardness may be increased further by increasing the pressure of the air/propane supply. In an Example, a 34CrNiMo 6 steel is hardened by heating to 1120-1140C in chamber 4, cooling to 800-900C on entry to chamber 12 and further cooling as it progresses through chamber 12.
Patent GB-161590-A (GB)
Title: Improvements in or relating to rifles
IPC: F41A21/48
Filed: 1921-04-14
Abstract: 161,590. Fuchs, J. A. April 14, 1921. Barrels; stocks; protecting from heat of barrel.-A rifle barrel 1 is protected against radial strains, caused by resting the gun on or against a support by a sleeve 10 of larger internal diameter than the outside of the barrel. The sleeve extends between the backsight and foresight, which are on the barrel itself, and is secured to the barrel at the rear end only. In a modification, the hand guard or the wooden forestock is formed as a tube surrounding the barrel with radial play, and is rigidly connected to the barrel at the rear. The hand-guard tube may be slotted.
Patent GB-952139-A (GB)
Title: Arch-type roof support for mine galleries
IPC: E21D11/22
Filed: 1962-03-22
Abstract: 952,139. Yielding mine arch supports. M. VON LINSINGEN. March 22, 1962 [May 2, 1961], No. 10973/62. Heading E1E. A yielding mine arch support 4, 5 is releasably clamped together by a device consisting of a casing 6, 7 and a relatively movable hydraulically actuated clamping member 3, the member 3 being pressurized by a bladder 10 through a circuit including a non-return valve 15 and a release valve (not shown). The bladder is made of rubber or synthetic plastic material.
Patent GB-1042787-A (GB)
Title: Improvements in or relating to calculating machines
Inventor: KITZ NORBERT
IPC: G06F7/498
Filed: 1964-03-21
Abstract: 1,042,787. Electric calculating apparatus. BELL PUNCH CO. Ltd. March 16, 1965 [March 21, 1964], No. 10977/65. Divided out of 1,042,785. Heading G4A. In an electric calculating machine wherein a dividend with a decimal point is set in a register and a divisor with a decimal point is set on a keyboard, the decimal point of the quotient calculated in the register is automatically positioned. According to a first method of entering the dividend into the register, the digits are entered on the keyboard and the required decimal point position keys DK (Fig. 3, not shown), depressed. Strings of pulses are produced to enter the digits in the register counters and the decimal point is stepped one position in a counter DC during the entry of each digit until the actuated decimal point key DK is encountered which renders an NPN transistor TR conductive, thus closing a gate DG6 feeding pulses P6 to the ring counter DC, to prevent further stepping of the decimal point. The decimal point position is indicated by a glowing neon lamp L. According to a second method of entry into the register the digits are successively registered on a single bank of keys. During entry of the first digit a gate DG8 is energized to set a bi-stable device BD and consequently open a gate DG2 to step the ring counter DC from 0 to 10 and then from 10 to 9. During entry of the next digit the counter is stepped from 9 to 8 and in each successive cycle 11 pulses are applied leaving the lamp L8 illuminated. Successive digits are similarly entered until a decimal point key is depressed placing a negative potential on a terminal DP, thus leaving a gate DG3 closed and preventing further stepping of the decimal point. Division is performed by repeated subtraction of the divisor from the dividend until the remainder is negative and one add back as described in Specification 1,042,786. During the first add back since an output C+ is energized all inputs to a gate DG10 are energized, unsetting the bi-stable device BD, opening a gate DG5 and applying P6 pulses to the ring counter DC until the bi-stable device BD is set again due to closure of a gate DG7 when the transistor TR is rendered conductive by the actuated switch DK. The gate DG5 remains closed during all subsequent subtractions because T1 and t1 are not coincident and the decimal point is thus positioned.