baber/WOPTO huggingface dataset:
Patent GB-204979-A (GB)
Title: Improvements in or relating to slow combustion stoves
IPC: F24B1/02
Filed: 1922-12-22
Abstract: 204,979. Chaboche, M. E. P. Dec. 22, 1922. Closed solid - fuel stoves; grates and fuel-holders. - In a closed solid - fuel stove, air for combustion passes partly vertically upwards through the bottom grate, partly through and in front of gratings at the front of the fire, and partly from an inclined grate at the rear to the front of the fire, where the outlet for the combustion products is situated. The stove shown comprises a bottom fuelsupporting plate A which is perforated with small holes to allow the use of small fuel, and is detachably mounted on a grid H, the latter being reciprocable for cleaning purposes. In front of the fire are inclined grates D, D<1> removably mounted in slotted side supports C, and at the rear is an inclined grate E, removably supported on a plate B arranged above the bottom plate A and having openings b, c, the latter of which is located beneath the grate E. Air for combustion passes from the ash-pit to and through the fire in the directions indicated by the arrows. In a modification, the various grates are not removable, the rear grate E is replaced by a block provided with air channels, and the bottom fuel support consists of a single reciprocable grate.
Patent GB-1123005-A (GB)
Title: Combined chemical and electrolytic process for the deposition of metallic coatings from aqueous solutions
IPC: C25D3/02
Filed: 1965-08-16
Abstract: Metal coatings are produced on metals which oxidize less easily according to the electro-chemical series by passing a current to the metal object to be coated as cathode from an anode of a more easily oxidizable metal or an insoluble metal through an aqueous solution produced by introducing into water at least one compound of the more easily oxidizable metal, a base and an acid, the base and acid reacting to form a buffering salt; a reducing agent being added as such or formed in the solution, the pH of the solution being between 5 and 8 and the voltage applied being at least the potential difference between the coating metal and the metal being coated but being below 2 volts. Preferably the applied voltage does not exceed 1.23 volts so that no hydrogen or oxygen is evolved, while the bath temperature is in the range of 50 to 90 DEG  C.  In one example for plating iron with zinc, the bath contains zinc oxide, ethylene diamine hydrate, acetic acid, hydrazine hydrate and an organic surfactant with optionally brightening agents, the bath being operated at 60 to 70 DEG  C. with an applied voltage of 0.5 to 1.0 volt, while in a further example the bath of pH7 comprises zinc oxide, ammonium hydroxide (which oxidizes to hydrazine during the electrolysis), formic acid and gelatine and is operated at 80 to 90 DEG  C. with an applied voltage of at least 0.323 volt. High molecular weight compounds such as starch, casein or bone meal, as well as gelatine, may be added to the baths as grain refiners. Reference is made to the potential differences of zinc, nickel, cadmium and tin relative to copper and to zinc and nickel relative to lead and to formaldehyde and sodium hypophosphite as reducing compounds.
Patent GB-522022-A (GB)
Title: Apparatus for the assembly, display and optical projection of objects and apparatus
Filed: 1938-12-02
Abstract: 522,022. Optical-projection apparatus. HANSEL, C. W. Dec. 2, 1938, Nos. 35094/38 and 24259/39. [Class 97 (i)] Apparatus for building-up optical projection apparatus comprises a base member and a number of units of such form and character that they may be assembled in various horizontal and vertical positions relative to one another and the base to form different kinds of projection apparatus, the assemblage being stable without the use of securing or connecting devices. Fig. 1 shows a base member in the form of a rectangular framework having ledges 1c, 2c and rails or beadings 3c, 4c at the top and near the bottom for supporting the units on or in it. The units are generally in the form of cubical boxes which may be assembled side-by-side or above one another and variously oriented according to the form of apparatus desired. Fig. 17 shows an assemblage of four units on the frame, comprising an illumination unit a with lamp b and condenser c, an adjustable table or stage a<SP>5</SP> for carrying the object an image of which is to be projected, a reflecting and projecting unit a<SP>2</SP> with objective c<SP>2</SP> and mirror d<SP>2</SP>, and a reflecting unit a<SP>1</SP> with mirror d' mounted above the unit a<SP>2</SP>, in addition, a unit comprising a translucent projection screen a<SP>4</SP> with front and rear light-shielding casings b<SP>4</SP>, c' is used. The apparatus may be used for diascopic or episcopic projection and may be arranged for the demonstration on the screen of scientific experiments and industrial processes and apparatus. Units for kinematographic projection may also be used. Illumination units for episcopic projection are illustrated, that shown in Fig. 16, comprising a supporting member a<SP>7</SP> to which is hinged a slotted support b' adjustable by a screw c<SP>7</SP> and carrying a lamp and a reflector e'.
Patent GB-451197-A (GB)
Title: Filter paper for filtering apparatus in cup form
IPC: A47J31/08
Filed: 1935-12-18
Abstract: 451,197. Filters. MELITTA-WERKE AKT.-GES., 43, Heidestrasse, and BENTZ, H. W., 10, Blumenstrasse, both in Minden, Westphalia, Germany. Dec. 18, 1935, No. 35101. [Class 46] Filter paper for use in a grooved or ribbed cup or like vessel, for example for making infusions of tea or coffee, is preformed according to the shape of the vessel from one or more blanks by folding and then uniting the edges by crimping, stitching or adhesive. Fig. 2 shows a paper element formed from a single blank with edges d crimped together. A separate blank may be used to form the bottom, its periphery being turned upward and united to the blank forming the side wall by crimping. The element shown in Fig. 5, has its lower portion strengthened by additional thicknesses g. It is cone-shaped with the apex turned up and attached to the side wall by crimping, so that it is kept in this position.
Patent GB-218492-A (GB)
Title: Improvements in and relating to steam boilers
IPC: F22B31/00
Filed: 1922-12-28
Abstract: 218,492. Hawley, C. G. Dec. 28, 1922. Water chambers in fire-boxes and flues; water-tube boilers; composite boilers.-The combustion space or furnace of a boiler, other than a boiler of the locomotive type, is divided vertically into a number of passages by one or more auxiliary heating and water circulating elements, each of which has a large surface relatively to its cross-sectional area and a water intake part leading upwards to a part of larger cross-section area. The auxiliary element may be of triangular form and of the kind described in Specification 137,093. The auxiliary element b, Fig. 1, fitted in the furnace flue of a marine boiler has its inlet or neck portion d connected to the furnace back sheet e and its longitudinally elongated outlet f connected to the top of the furnace flue. The element may be placed wholly in front of the fire-bridge or in the upper part of the combustion chamber. In boilers of the vertical water-tube type, auxiliary elements are arranged in front of or beneath the boiler drums, and may open into auxiliary drums' placed at right-angles in line with or parallel to the boiler drums. The elements e<4>, Fig. 19, open at their upper ends into the bottom boiler drums c<5>, and at the lower ends into a transverse auxiliary drum h<4>. In boilers of the horizontal. water-tube type, the bottom ends of the auxiliary elements are connected to the mud collectors, and the top ends to auxiliary drums or to the water-tubes. The elements w<2>, Fig. 14, are connected to some of the lower tubes v<2> of a Babcock and Wilcox boiler. In a vertical multitubular boiler an auxiliary element is arranged above the furnace at the front of the boiler. The auxiliary elements may consist of banks of tubes. A horizontal multitubular boiler A, Figs. 3 and 4, has depending banks of water tubes 8 dividing its furnace chamber. The lower ends of the tubes open into a header 6 connected to the boiler by external tubes 7. Specifications 10646//84, 5268/91, and 13423/12 are referred to.
Patent GB-1236979-A (GB)
Title: Improvements relating to battery charging apparatus
Inventor: FOSTER GEORGE WILLIAM
IPC: H02J7/00
Filed: 1968-07-24
Abstract: 1,236,979. Charging batteries. ELECTRIC POWER STORAGE Ltd. 23 July, 1969 [24 July, 1968], No. 35324/68. Heading H2H. A battery is charged from a pulsating supply and a control circuit includes an arrangement for modifying the charge in response to the voltage assumed by the battery during intervals between the charging pulses. In the circuit of Fig. 1, a battery 10 is charged from an A.C. supply 11 by way of a main transistor 12 and a half-wave rectifying diode 13. The base-emitter circuit of a further transistor 20 is connected across the battery 10 and supply 11 so that during charging it is biased off, but when the battery voltage exceeds the supply voltage it is turned on and a capacitor 25 is charged to a voltage depending directly on the battery voltage. When the battery approaches its fully charged state, the capacitor voltage becomes sufficient to break down a Zener diode 27 so that a transistor 26 conducts and tends to turn off the transistor 12 and thus reduce the charging current. The circuit may be provided with a more elaborate sensing and trigger circuit including transistors connected in cascade, Fig. 2 (not shown), and may also include a current control device which compares the voltage drop across a resistor in the charging circuit with a Zener diode and adjusts the conductivity of the main transistor accordingly.
Patent GB-333477-A (GB)
Title: Improvements in and relating to the production of materials containing phosphorus and nitrogen suitable for use as fertilisers
IPC: C05B7/00
Filed: 1929-11-19
Abstract: 333,477. Hydro Nitro Soc. Anon- Dec. 1, 1928, [Convention date]. Manures.-A product consisting of urea and ammonium pyrophosphate and metaphosphate and suitable for use as fertilizers is obtained by heating ammonium carbamate and phosphorus pentoxide together in an autoclave. Ammonia, and carbonic acid in a pure state or diluted with inert gases may be used instead of ammonium carbamate. The Specification as open to inspection under Sect. 91 (3) (a) states that urea phosphate is eventually obtained. This subject-matter does not appear in the Specification as accepted.
Patent GB-765856-A (GB)
Title: Frequency-difference detector system
IPC: H04J9/00
Filed: 1953-12-21
Abstract: 765,856. Frequency discriminators. HAZELTINE CORPORATION. Dec. 21, 1953 [Dec. 31, 1952], No. 35444/53. Class 40(5) Inputs in quadrature phase are applied at 26, 27 from an oscillator to mixers or phase detectors 30a, 30b to which inputs in phase are also applied from a reference frequency source through a limiter or gate 61. The resulting difference frequencies in phase quadradure pass through filters 31a, 31b of pass-band e.g. 100-7500 c/s having a lower frequency cut-off and after one is shifted in phase by 90 degrees, by a differentiating network 34, they are in phase or anti-phase depending on the sence of the frequency difference, and on being applied, e.g. to different grids of a signal multiplier tube 34, an output is derived across an integrating circuit 60 in sign and magnitude representing the frequency difference provided a certain frequency difference, determined by the lower cut-off frequency of the filters, is exceeded. Since the signals are multiplied noise effect errors are averaged out and the system is insensitive to noise. The system may be applied to decreasing pullin time in automatic phase control of a colour television phase reference oscillator. Specification 765,855 [Group XXXV] is referred to.
Patent GB-939755-A (GB)
Title: A clutch for the transmission of high torques
IPC: F16D13/69
Filed: 1962-09-18
Abstract: 939,755. Friction clutches. E. F. PULS, [trading as PULSGETRIEBE ERICH FRIEDRICH PULS]. Sept. 18, 1962 [Sept. 27, 1961], No. 35448/62. Class 80 (2). In a friction clutch having inner discs 11, connected with an input shaft 1, pressed into engagement with annular peripheral discs 6 connected to the output shaft 2, at least one set of discs consists of completely separate segments shiftable within limits in an axial direction. The inner discs 11 may be slotted and the outer discs 6 comprise a number of slotted segments carried on tapered pins 5 secured to a casing 3 rigid with the shaft 2. As the clutch is released by rightward movement of a thrust collar 9 to rotate the engaging levers 8, centrifugal force on the segments 6 in conjunction with the taper of the pins 5 causes the segment to move radially and axially to prevent drag. The segments have sloping ends 65, 66 and sloping slots 63 to prevent interference from slots in the inner discs 11. The pins 5 may be cylindrical with a sloping flat inner face or may be mounted at an angle to the centreline of the clutch. Instead of pins 5, the outer segments may be retained on tapered splines in the outer member 3. Cooling fluid may be pumped between the discs which may be of different hardness materials or have sintered facings.
Patent GB-894286-A (GB)
Title: Improvements relating to closure devices for scrubbing chambers and the like
IPC: F16J13/02
Filed: 1959-10-20
Abstract: 894,286. Access covers. RAY-HEET (PROCESS PLANT) Ltd., and BROCKEN, R. G. Nov. 17, 1960 [Oct. 20, 1959], No. 35492/59. Class 107 A scrubbing chamber or the like comprising an access door and a wall having an aperture to receive the door, the upper part of the door having a flange projecting towards its front at right angles and terminating in a downwardly turned lip, a similar lower locking flange being of less width than the aperture, an outwardly directed gutter channel on the inner surface of the chamber wall adjacent the edge of the aperture receiving the upper flange and the lower flange engaging over the lower edge of the aperture. As shown, a door or manhole cover 14 for a spray chamber, has a flange 15, 16 along the upper edge and upper parts of the side edges which is engageable in a channel 13 around the top and sides of an aperture 12, and a flange 18, 20 spaced from its lower edge and not extending the full width of the door which is engageable with the lower edge 12a of the aperture 12. The flange member 15 extends along all edges of the door, the member 16 being bent downwards along the top edge and inwards above slits 17 in the flange along the side edges. The door is passed through the aperture into the spray chamber and the flanges are hooked on to the channel 13 and edge 12a.
Patent GB-321850-A (GB)
Title: Improvements in the prevention of mould in rubber
IPC: C08C3/00
Filed: 1928-12-03
Abstract: 321,850. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 3, 1928. Indiarubber, preserving.-Mould on rubber is prevented by treating the raw rubber with water soluble inorganic acids containing one or more organic radicles (alkyl, aralkyl, aryl, or cycloalkyl) or water soluble salts of these acids. for example butylated naphthalene sulphonic acid. mono-methyl sulphuric acid, sodium dicresylphosphate. The preservative is applied in 10 per cent solution, e.g. by dipping or spraying.
Patent GB-155587-A (GB)
Title: Improvements in or relating to the squirting or extrusion of metals
IPC: B21C25/02
Filed: 1920-12-18
Abstract: 155,587. BÚgot, L. H. E. Dec. 19, 1919, (Convention date]. Squirting.-In the production of bars or tubes from hot ingots by squirting, in order that squirting of articles of very small diameter may be effected in one operation from ingots of large diameter without raising the temperature or pressure to such an extent as to change the mechanical properties of the metal, a series of dies a, b, c of successively smaller diameter are arranged one behind the other, the cylindrical surfaces of which in contact with the metal are of considerably greater length than the diameter of the final extrusion orifice and preferably also than the diameter of the orifice of the adjacent forward die, in order to slow down the speed of advancement of the metal through the dies and provide periods of rest betwen the zones of activity, The dies are fitted into each other so as to resist lateral pressure. The first die a is mounted in a. tube d so as to enable it to be replaced. The successive dies are fitted into the conical portions of the bores of preceding dies, the remainder of the bores being cylindrical.
Patent GB-907696-A (GB)
Title: Improvements relating to contactless switches
Inventor: GERBIG KURT
IPC: H04Q3/52
Filed: 1959-10-21
Abstract: 907,696. Automatic exchange systems. FERNMELDEWERK ARNSTADT VEB. Oct. 21, 1959, No. 35684/59. Class 40 (4). A cross-point for a switching matrix comprises between the two legs of a horizontal circuit a condenser C 1 , a semi-conductor switching device D3, a centre-tapped coil T.Dr, a further semi-conductor switching device D2 and a codenser C, the vertical legs being connected to the sides of the condensers nearest the coil by further semi-conductor switching devices D, D1. The semi-conductor devices are normally backbiased to the non-conducting state but to establish a connection the back bias is increased to bring the device to the breakdown condition. The semi-conductor devices may be Zener diodes the connection being established by increasing the potential difference applied between the centre tap of coil TDr and the centre tap of a coil V.Dr connected across the vertical legs. The semi-conductor switch may, however, be double-based diodes or Shockley diodes in which case switching is effected by utilizing one of the flanks of a pulse applied across the centre taps of the coils. As shown connection between two subscribers, say Tln 1 and Tln 100 can be effected by operating the top and bottom cross points of the left-hand column. Talking battery is applied over the centre taps of coils connected across the subscribers' lines, this battery being blocked from the cross point switches by the condensers associated therewith. A cross point network using such cross points is also described for connecting inlets connected to the verticals to outlets connected to the horizontals, the inlets to the verticals also containing an enabling switch of the same type, Fig. 2 (not shown).
Patent GB-166490-A (GB)
Title: Improvements in or relating to jiggers for the concentration of minerals
IPC: B03B5/18
Filed: 1920-12-21
Abstract: 166,490. Ware, S. D. Dec. 21, 1920. Jigs.-In a jig, a suspended screen has imparted to it independent positive vertical and horizontal quick-return motions. In the form shown, the screen j, which may be inclined downwards towards the discharge end, is suspended in water in a tank a divided into compartments a<1>, a<6>. The screen is reciprocated vertically by means of cams or eccentrics h and horizontally by means of cams h', both sets of cams being operated by a power-driven shaft e. The vertical movement is controlled by adjustable springs q, and the horizontal movement by springs y and an adjustable lever v, or by variation of the stroke of the cam h<5>. The material to be treated is fed to the end m<1> of the screen into the compartments a<2>, a<6>, and the light material is discharged through an outlet m.
Patent GB-1113284-A (GB)
Title: Gas heated continuous-flow heater for central heating water and domestic water
IPC: F24H1/14
Filed: 1965-08-20
Abstract: 1,113,284. Water heaters. JOH VAILLANT KOMM-GES. 20 Aug., 1965 [19 Sept., 1964], No. 36814/65. Heading F4A. A gas heated water heater for supplying central heating water, comprises a heat exchanger 3 formed from finned tubes 4, 5, 6, 7 arranged in series or parallel on top of a casing 1 surrounded by a cooling coil 2 supplying the return water from radiator 14 and pump P to the heat exchanger 3. Domestic draw off water flows through an inner tube 11 within the coil 2 in counter flow to the return central heating water to be heated thereby. The domestic draw off tap (not shown) and the three way valve 15 in the supply line 10 from the water heater 1 to the radiator 14 are interconnected, so that on draw off of hot domestic water, the central heating water by-passes the radiator 14, through line 16 to return to the coil 2 in a hotter condition to heat up the domestic water contained in the inner tube 11 therein.
Patent GB-1436456-A (GB)
Title: Winding for transformers and chokes
IPC: H01F27/28
Filed: 1973-07-27
Abstract: 1436456 Transformers and inductors TRANSFORMATOBEN UNION AG 27 July 1973 [28 July 1972] 35863/73 Heading HIT A winding comprises pairs of disc coils 11 and 12, 13 and 14, each coil having the same number of turns of each of a number of interwound electrical conductors, e.g. 1 to 8 in Fig. 2, the winding direction of each pair of coils being opposite to that in the or each adjacent pair, and the winding inputs 1, 3, 5, 7 being equally spaced around the circumference of the coil and being led irrespective of direction along the smallest possible circular are to a plug or connection point 20. Connections 15 between the coils are similarly spaced and lie approximately midway between adjacent inputs. The coils are wound of flat conductor wires with broad faces together and the conductor ends forming the winding inputs are bent through 90 degrees over the edge of the coil so that their broad faces lie flat on the end face of the coil. Connections to the plug 20 may be by bending and/or soldering and insulation is provided by wrapping with paper strips or the like. For a middle input winding the conductor ends may run between two coil end faces, for an end output winding the conductor ends may run between one coil end face and an adjacent screen ring.
Patent GB-1092834-A (GB)
Title: Coin collection in local and long distance coin box telephone sets
IPC: H04M17/02
Filed: 1965-08-20
Abstract: 1,092,834. Automatic exchange coin-freed systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Aug. 20, 1965 [Aug. 26, 1964], No. 35912/65. Heading H4K. [Also in Division G4] In a telephone system where the fee-unit per exchange metering pulse is not a whole number multiple of the coin denomination, coin-box telephones, of the kind which successively encash coins from coins held in suspense, store the credit value acruing from encashed coins whose denominations are not whole numbers of fee-units. If upon the arrival of a metering pulse this credit value is less than a fee-unit further coins are encashed until the credit value reaches or exceeds the fee-unit, whereupon the fee-unit is deducted. A visual indicator gives the total credit of encashed coins and coins held in suspense which if it falls below one fee-unit as successive coins are encashed initiates a signal to the callers to insert more coins, failure to do so resulting in disconnection. Coins still held in suspense at the end of a call or at compulsory disconnection are returned to the caller.