baber/WOPTO huggingface dataset:
Patent GB-566389-A (GB)
Title: Medium for testing for and detecting the presence of hydrofluoric acid vapour in air
IPC: C01B7/19
Filed: 1943-05-13
Abstract: 566,389. Chemical testing. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and FAGAN, C. P. May 13, 1943, No. 7672. [Class 1 (i)] A means for detecting hydrofluoric acid vapour in the atmosphere consists of an absorbent body such as filter paper or sintered glass plates impregnated with a mixture of two solutions, namely, zirconium nitrate in water and sodium alizarin sulphonate in ethyl alcohol.
Patent GB-788802-A (GB)
Title: Improvements relating to conveyors
Inventor: BAINBRIDGE FEATHERSTONE
IPC: B65G17/02
Filed: 1955-03-16
Abstract: 788,802. Endless troughed plate conveyers. HUWOOD MINING MACHINERY, Ltd. March 8, 1956 [March 16, 1955], No. 7672/55. Class 78 (1). In an endless troughed plate conveyer the plates 22 are secured to parallel belts 23 and the upturned ends of the plates are provided with bent-over portions 24 which frictionally engage endless driving chains 19. To prevent leakage of material between adjacent plates, each plate comprises upper and lower pressings 29, 30 which are offset relative to one another in the longitudinal direction of the conveyer band, to provide overlapping portions (Fig. 7). Each pair of plate pressings 29, 30 is secured to the belts 23, in co-operation with a bottom pressing 26, by bolts 27, spacers 28 of slightly less thickness than that of the belts being used so that the belts are gripped between the bottom pressing 26 and the pair of plate pressings. The bent-over portions 24 are provided with friction linings 25. The chains, of round-link construction, are supported at intervals along the conveying run by idler rollers comprising pairs of discs 33, the edges of which are chamfered at 34 on their inner faces to guide the vertical chain links between them whilst supporting the horizontal links. On the return run the inverted plates are engaged by idler rollers 38, which incorporate sleeves 40 of rubber or other sound-deadening material, and the chains 19 rest in the bent-over portions 24. The framework includes side plates 36 to prevent spilling of material, and further guards (Figs. 1-3, not shown), may be provided around the discs 33. The belts 23 may be in short lengths, which are assembled with a series of plates 22, leaving a space of half a plate width at each end, and then joined by hook-fasteners 31 engaged with a transverse rod 32, after which a further plate 22 is secured over the junction. The framework is also in sections, including end sections for the terminal pulleys of belts 23 and the driving and tensioning rollers of chains 19. Instead of using a single pair of chains, a long conveyer may be driven by a series of pairs of independently driven chains.
Patent GB-1501804-A (GB)
Title: Circular convolution function generator
IPC: H03H17/02
Filed: 1976-02-27
Abstract: 1501804 Convolution function generators INTERNATIONAL BUSINESS MACHINES CORP 27 Feb 1976 [18 April 1975] 07738/76 Heading G4A [Also in Division H3] A circular convolution function of two series of values a n  and b n  is generated by (1) term-byterm multiplying primitive root transforms A K  and B K  of the respective series of values a n  and b n  to obtain products C K  = A K .B K  where  and B K  are similar, (( )) signifying operation modulo p and ((g<SP>nk</SP>)) is the set of numbers between 1 and (p-1), p being prime and (2) performing the inverse transforms  where < > signifies operation modulo (p-1). Multiples of at least one of the series of values, e.g. an, are accumulated and the transforms A K  are derived by successive accumulations of these multiples, e.g. for p = 7 with similar expressions for A 3 -A 6 . Apparatus T1 for deriving transforms A K  in this manner comprise a recirculating register R, an adder AD1 and register R1 for forming the multiples of a n , and a further adder AD2 and memory M(A K ) for accumulating and storing the transforms A K . While the transforms A K  are being computed and stored for a given input series a n , products qC K =qA K .B K  are formed by a multiplier MULT from terms A K  supplied by memory M(A K ) and relating to a previous series an, and terms gB K  representing the normalized transforms of another series b n  which may be held in a further memory RM. The inverse transform T<SP>-1</SP> is performed by apparatus similar to that for the transform T. It is shown that the number of additions required to perform the transforms may be reduced by taking advantage of the symmetry of the coefficients g<SP>nk</SP>. It is also shown that the aperiodic convolution required for operation as a digital filter can be reduced to a sum of circular convolutions. A series b n  is formed using the N coefficients of the required filter and appended with N zeroes. Input signal samples x i  are split into blocks of N successive samples interspersed with blocks of N zeroes to form series an. Circular convolutions betweena n  and b n  are performed with p = 2N + 1, and the results of two consecutive circular convolutions are added to obtain the filtered samples y i . Two separate convolution generators may be used alternately or the same generator may be used successively.
Patent GB-498637-A (GB)
Title: A device for controlling the temperature of foundry moulds
IPC: B22D13/10
Filed: 1938-03-14
Abstract: 498,637. Cooling systems for foundry moulds. ARDELT, R., ARDELT, P., ARDELT, R., and ARDELT, M., (trading as ARDELTWERKE). March 14, 1938, No. 7856. Convention date, April 22, 1937. [Class 29] [Also in Group XXII] The temperature of a centrifugal or other mould F is regulated by a jacket through which oil, glycerine, &c. is circulated by a pump, the liquid being selectively heated or cooled. This may be done by means of a heat exchanger supplied, at will, with steam or cold water or by a heater H and cooler K connected in parallel or, as shown, in series. If connected in parallel a two way valve is used to direct the liquid through either heat exchanger at will but if, as shown, in series the exchanger not required for the time being is not supplied with heating or cooling medium or is byepassed. The pump P in the normal positions of the valves 1 ... 6 circulates the fluid through the mould F, tank V, heater H, and cooler K, via pipes A, B, C, D, E, R, S, and T. Before commencing casting the fluid in the tank may be heated by adjusting the valves 3 and 5 so that the fluid flows by convection from the heater via pipes R, W, C, D, and E. By readjusting the valves 3 and 5 the heater may be byepassed, via pipe U, or the heater and tank, via pipe W. A valve 6 allows the system to be emptied. Thermometers Z may be provided. For casting iron the liquid entering the mould jacket should be at 150-250‹ C.
Patent GB-499448-A (GB)
Title: Elastic cord and fashion trimming
IPC: D04D1/00
Filed: 1938-03-14
Abstract: 499,448. Indiarubber springs. CONDELEX SOC. ANON. March 14, 1938, No. 7867. Convention date, March 19, 1937. [Class 108 (iii)] [Also in Groups VIII and XXV] An elastics cord comprising a core a, and two or more rubber threads b inserted in one side of a braided sheath c is used as material for hat bands 1, collars 2, trimmings 3, gimps 4, glove fastener rings 5, hand bag handles and ornamentations 6, 7, bracelets 8, umbrella loops and closing rings 9, 10, suspenders 11, garters 12 and shoe loops 13. It can also be used for head bands 14, borders 15, 16 of wearing- apparel, and belts 17, curtain bands, the tops of slippers, sleeve bands, sock suspenders. braces and brace tabs, chin straps, eye shades, or for securing a captive ball in tennis practice. Several cords may be associated to form a rope for a boxing ring, chest expander, &c. The cord when unstressed takes the shape of a helical spring, the size of the convolutions depending on the flexibility of the cord as a whole, the eccentricity of the rubber threads and on the residual force with which the threads are still stretched when the cord is contracted. The convolutions may be given a flattened shape by applying heat pressure &c. or a former of rectangular cross-section.
Patent GB-198820-A (GB)
Title: Improvements in or relating to screw-down water-taps and the like
IPC: F16K43/00
Filed: 1922-03-18
Abstract: 198,820. Macbean, L. C. March 18, 1922. Closure members.-The division wall b of a water tap is provided with a seating g on the under side to co-operate with an auxiliary valve l, comprising a flexible disc mounted on a central split-pin m, and adapted to cut off the flow when the main valve is removed. The usual jumper n is provided with a central hole to receive the split pin, and the auxiliary valve is maintained in its proper relative position by a sleeve p. Alternatively, the jumper n may be provided with a stem m, Fig. 3, projecting downwards and frictionally engaging the valve l. The upper side of the flexille disc l may be cup-shaped, so that it is expanded against the seating by the pressure of water on the back.
Patent GB-1089967-A (GB)
Title: Improvements in or relating to arrangements for the manufacture of electronic components comprising thin films
Inventor: ARDENNE MANFRED VON
IPC: H01J37/305
Filed: 1965-02-24
Abstract: <PICT:1089967/C6-C7/1> In apparatus for coating a substrate 12 with material, e.g. an alloy, sputtered from a thin strip 11 under bombardment by an ion beam, the substrate chamber 5, which is maintained at a pressure of 10-3 mm. Hg., communicates with the ion beam accelerating chamber 3, which is maintained at a pressure of 10-4 to 10-5 mm. Hg., through a circular, square or rectangular tube 10 for the passage of the beam and which also offers a resistance to gas flow.  Gas, e.g. oxygen may be introduced into chamber 5 for reaction with the atomized material.  The ion beam may be deflected on to the substrate 12 for cleaning purposes.  The strip 11 and the substrate 12 may each be moved continuously or discontinuously. The strip has a heating or cooling device 16 and the substrate a heater 20.
Patent GB-415827-A (GB)
Title: Improvements in the packing of matches
IPC: A24F27/20
Filed: 1933-03-16
Abstract: 415,827. Match - books. LIBBY, G., and SAUNDERS, E. E., 81, Chancery Lane, London. March 16, 1933, No. 7994. [Class 94 (i).] In a match-book having two folding panels A, B, the matches are gripped at an intermediate point by a corrugated strip 4 and the backing 3 to which it is secured, a friction surface being provided on one or both of the gripping elements to ignite the matches as they are withdrawn. The strips 4 may be covered by strips 2 which may bear advertisements, or if the strips 2 are omitted, the strips 4 may be arranged so that their corrugations interengage.
Patent GB-890979-A (GB)
Title: An advertising device
IPC: G09F13/12
Filed: 1960-03-07
Abstract: 890,979. Signs. THIEMANN, P. A. W. (U. Kramer). March 7, 1960, No. 8054/60. Class 3(2). An advertising device comprises a mirror 2, transparent to transmitted light and against which removable transparencies such as 8 are held, the mirror being fixed in a compartmented casing, Fig. 1 (not shown), accessible through doors in the back of the casing. The transparencies 8 are each coated with a lightdiffusing translucent layer 9.
Patent GB-1533045-A (GB)
Title: Absorbent paper
IPC: D21F11/00
Filed: 1976-03-03
Abstract: 1533045 Papermaking PROCTER & GAMBLE CO 1 March 1976 [3 March 1975] 08114/76 Headings D2A and D2B A soft, bulky, absorbent paper web comprises from 5-70% by wt. of thermomechanical pulp based on total fibre content and has a bulk density of from 0.04-0.15 gm/cc and a total dry tensile strength greater than 200gm per inch. Conventional chemical pulp may be used in the manufacture of the paper web together with conventional papermaking additives e.g. a polyacrylamide, a polyamideepichlorohydrin complex, a polyethylene glycol monolaurate, or a polyethylene imine. The web may be imprinted with a fabric knuckle pattern and may be creped. Papermaking Apparatus. As shown, a papermaking furnish may be delivered from a headbox 11 to a gap between a top forming wire 53 and a bottom forming wire 13. The web formed is dewatered by means of suction box 33 and transferred to a conveying and imprinting fabric 55 by means of vacuum transfer box 57. Further dewatering is effected by means of suction box 61, and the web is dried by hot air issuing from sieve drying rolls 69, 73. The pattern of the fabric is then imprinted on the web by means of pressure roll 81 acting against Yankee drier 97, and the imprinted web is finally dried on the drier, creped by doctor blade 99, and woundup on reel 109.
Patent GB-857508-A (GB)
Title: Boiling point temperature measuring system
IPC: G01K1/14
Filed: 1959-03-09
Abstract: 857,508. Measuring temperature. FOXBORO CO. March 9, 1959 [March 20, 1958], No. 8130/59. Class 40 (1). [Also in Groups XX and XXXV] Apparatus for continuously measuring the temperature at which a flowing liquid boils, includes a percolator system, a thermometer located in condensate flowing from the system and means for causing the liquid to flow through the system so as to be boiled and condensed therein. As shown, the boiling pointof a sample liquid such as a solution of sugar or sodium chloride in water, is compared with that of a reference liquid. The sample liquid passes through pipe 11 and one section of a double coil 92 to the inlet 80 of a body of liquid 56 whose level is maintained by the stand pipe 90 of a vapour trap tank 88 leading to a drain 30. Steam entering at 28 has one branch leading to the second section of the double coil 92, the outlet of which is at 29, and another branch 93, passing through needle valve 94 and condensing coil 95 to the inlet 81 of the body of reference liquid 57. The sample and reference liquids entering at 80, 81 are raised to the boiling point by heaters 33, 34 so that some passes up the percolator pipes 70, 71 to the chambers 64, 65, and flows over the thermometric elements 18<SP>1</SP>, 19<SP>1</SP> which as shown are resistance thermometers, back to the bodies of liquid 56, 57. The thermometric elements 18<SP>1</SP>, 19<SP>1</SP> are connected to a recorder and controller instrument 12 which through line 13 controls the process block 14 for example adjusting the concentration of sugar or salt in the sample liquid. The upper portion of the instrument is formed as a condensing system by providing water inlets 21, 22, 23 and outlets 25, 26, 27. The baseplates 50, 42 are separated by spacers 48, 43 from the support rings 47, 44 so that air may flow in at 46 up through the lower part of the apparatus and out at 49.
Patent GB-1124561-A (GB)
Title: Device for the winding up of material webs
Inventor: RICHTER HEINO
IPC: B65H18/10
Filed: 1966-02-24
Abstract: 1,124,561. Winding webs. DRUCKMA. SCHINENWERK PLANETA VEB. 24 Feb., 1966, No. 8154/66. Heading B6B. A web-winding apparatus comprises a driven spindle 13 on which the web roll 8 is wound, the spindle 13 being carried by an arm 3 pivoted about a shaft 4 and means being provided whereby the arm can be locked to the shaft 4 with the surface of the roll spaced by a distance "a" from the surface of an adjacent driven cylinder 9 over which the web passes, or the arm can be unlocked so that the roll 8 rests freely on the cylinder 9. The locking means consists of a lever 6 on the arm 3 which has an eccentric tapered edge engageable with a tapered groove in a wheel 7 adjustable about the shaft 4 by a worm and wormwheel device 2, 4 actuated by a spindle 1. In the locked position the spindle 1 can be operated manually or automatically by sensing the roll diameter to maintain a constant spacing "a" between the roll 8 and the cylinder 9. If the operator omits to actuate the shaft 1 and the roll 8 rests on the cylinder 9, the arm 3 will be moved so that the lever 6 moves automatically out of the locking wheel 7 thus avoiding damage to the parts 1, 14, 2.
Patent GB-800417-A (GB)
Title: Process for producing fertilizers
IPC: C05B13/06
Filed: 1956-03-16
Abstract: Phosphate fertilizers are produced by heating under pressure metaphosphate of calcium, potassium or sodium with water in the presence of a basic compound reacting with the acid products of the hydrolysis, e.g. phosphate rock, dolomite, limestone or ammonia.  It is stated that the meta phosphate is converted to primary o-phosphate, which is then converted to dicalcium phosphate and phosphoric acid which reacts with phosphate rock. The product is then substantially di-calcium phosphate.  In examples, calcium metaphosphate is mixed with an equimolecular amount of ammonium hydrate or phosphate rock ground to 200 mesh, and water added in proportions, water: metaphosphate not exceeding 0.8 by weight.  The mixture is heated to 260 DEG  F. in an autoclave under 20 lb. pressure, for 10/30 minutes.  The product is dry and contains about 48/50 per cent of available P2O5.  Pressures up to 136 lb. and temperatures up to 350 DEG  F. may be employed.  A rotary autoclave may be used with steam containing ammonia injected under pressure. The product is then in granular form.
Patent GB-578059-A (GB)
Title: Improvements in and relating to overload protective devices for electric apparatus
IPC: H01H71/16
Filed: 1944-05-02
Abstract: 578,059. Temperature-responsive actuating- elements. BRITISH THOMSON-HOUSTON CO., Ltd. May 2, 1944, No. 8287. Convention date, May 3, 1943. [Class 64 (ii)] [Also in Group XXXVII] The secondary winding of a current transformer is arranged to include a portion of a thermostat within its circuit. The winding comprises a copper strap 13 brazed at its ends 15, 16 by means of small joints to a bimetallic strip 14 so that heat is generated in the strip 14 itself by the current induced in the winding. By suitable positioning of the joints 15, 16 the relative resistances of the strap 13 and the strip 14 can be varied so that the current-time heating curve of the apparatus to be protected may be closely followed.
Patent GB-472461-A (GB)
Title: Improvements in or relating to change-speed and axle-drive gears for motor vehicles
IPC: B60K17/34
Filed: 1937-03-22
Abstract: 472,461. Motor vehicles. ZAVODY TATRA AKCIOVA SPOLECNOST PRO STAVBU AUTOMOBILU A ZELEZNICNICH VOZU. March 22, 1937, No. 8383. Convention date, July 8, 1936. [Classes 79 (ii), 79 (iii), and 79 (iv)] In order to provide for converting a sixwheeled motor vehicle into a four-wheeled one and vice versa, the gear-box 1 accommodating the drive for the front axle 2 is provided with a cover 3 or 3<1>, the cover 3<1> for a four-wheeled vehicle having supporting means for a tube 6<1> or other chassis member on a level with the main gear-wheel 5 of the front axle drive, while the cover 3 for a six-wheeled vehicle has supporting means for a chassis tube 6 on a level with the auxilary gear wheel 4 of the front axle drive thus, in the case of the four-wheeled vehicle the transmission shaft for the rear axle 10<1> is coaxial with and driven from the main gear 5, and in the six-wheeled vehicle the rear axles 10 are driven from the auxiliary gear 4 through a shaft at a sufficiently high level to pass above the foremost of the two rear axles. This latter shaft drives the rear axles through gearing 8, 9 and a shaft 11.
Patent GB-855788-A (GB)
Title: Improvements in or relating to bottles and other like containers
IPC: B65D23/06
Filed: 1957-03-14
Abstract: 855,788. Bottles. FISHER, C. B., and HOGAN, A. J. Oct. 2, 1957 [March 14, 1957], No. 8394/57. Class 66. A bottle or similar container 1 comprises an upstanding rim 4, which forms a trough 5 around the lower edge of a screw cap 3 for the bottle, and has an inner bottom surface 6 in the form of an inverted cone, the outer side of the base being formed to enable the bottle to stand upright on a flat surface. The upstanding rim 4 may extend laterally of the container wall, Fig. 2 (not shown). When used in a centrifuge, the trough 5 retains any liquid in the bottle which may escape past the lower edge of the cap 3. Dimensions of the bottle are described.
Patent GB-766161-A (GB)
Title: Improvements in or relating to ripple control systems for electricity distribution networks
IPC: H02J13/00
Filed: 1954-03-23
Abstract: 766,161. Signalling over power circuits. KERRIGAN, W. P. March 23,1955 [March 23, 1954], No. 8433/54. Class 40 (4). A ripple control system in a three-phase distribution network comprises an audio-frequency generator A which is connected in series with two equal condensers C1, C2 and a switch S to two of the secondary phases R, Y or R, B of a step-down transformer in the network, the condensers, the transformer phases connected thereto and the generator being tuned to series resonance at the generator frequency. It is stated that the tuning is substantially unaffected by fluctuations of load in the distribution network. Preferably, however, the transformer is either the lightest loaded transformer in the network or has the highest rating. It is suggested that the generator A may alternatively be connected between phase and neutral. According to the Provisional Specification, an amplifier, Fig. 4 (not shown), comprising two tetrode stages controlling an A.C. relay which switches in a local signal generator, may be provided at a receiving point where the ripple signal strength is low.
Patent GB-157051-A (GB)
Title: Improvements in electric furnaces
IPC: C22B4/08
Filed: 1920-03-22
Abstract: 157,051. Soc. Metallurgique du Frayol. Jan. 7, 1920, [Convention date]. Electrode furnaces.-A tilting furnace for melting and refining metals, &c., has a roof formed by one or more adjustable blocks of, graphite. As shown, the roof block is composed of sections q, and is suspended from a cable t passing over pulleys to a winch on the side of the furnace. A safety chain u connects the block to a cross-bar v, which is raised by an electric travelling crane when repairs are needed. The block fits loosely within a stationary water-cooled frame s of castiron or moulded steel; after adjustment of the block to suit the nature of the charge and its treatment, the space between the block and frame is sealed with clay, &c. The furnace may be worked with the block removed. If there are several blocks, they are adjustable independently. Holders c allowing rotation of the electrodes a are mounted on carriages e on inclined tracks supported by framework, g, insulated by micanite, asbestos board, &c. Motors d and screws adjust the carriages. The electrodes a are also supported by rollers f, and pass into the furnace through insulated water-cooled sleeves b. The bottom contact plate is supplied with current by flexible conductors j, and is connected by rigid conductors to the lateral contacts. These are used at starting, or when local heating is required, the furnace being tilted for this purpose. Rockers on the furnace rest on rollers o, and are attached to curved racks n gearing with pinions operated by an electric motor. Single or 3-phase alternating currents may be employed.
Patent GB-1446537-A (GB)
Title: Process for the manufacture of oxo compounds
IPC: C07C45/67
Filed: 1975-02-28
Abstract: 1446537 Oxo compounds F HOFFMANNLA ROCHE & CO AG 28 Feb 1975 [1 March 1974] 8446/75 Heading C2C #,γ-Unsaturated oxo compounds are prepared by isomerization of α,#-unsaturated oxo compounds using as catalyst an acid which is stable under the reaction conditions, which has a pK value of between 2 and 5 and a boiling point above that of the isomerization product, and the isomerization product is separated by means of distillation.