baber/WOPTO huggingface dataset:
Patent GB-343523-A (GB)
Title: Improvements relating to the surface treatment of roads
IPC: E01C7/35
Filed: 1929-11-20
Abstract: 343,523. Macadamized roads. RANDS, F. C. and ALEXANDER, T. F. N., 57, Kingsway, London. Nov. 20, 1929, No. 35536. [Class 107.] Roads surfaced with asphalt, bitumen, tar or like macadam or aggregate, which is dressed or grouted with bitumen, tar or bitumen-tar compounds, are treated with a common solvent for the bitumen or equivalent binder in the road surface to render such binder plastic and the softened binder is then used for re-surfacing the road. The solvent may consist of creosote, anthracine, kerosene, or other coal-tar or petroleum distillates, wood or vegetable oils or a mixture of any two or more of the same, and may be applied in the form of an emulsion. After application of the solvent in one or two dressings, the road surface is treated with granite or limestone chippings, &c. and may then be rolled. In an alternative method, an aggregate treated with one or more of the solvents referred to above is applied to the road surface and rolled, if desired.
Patent GB-866044-A (GB)
Title: Improvements relating to containers for beds of fluidised particles
Inventor: REEVE LEWIS
IPC: B01J8/28
Filed: 1958-11-05
Abstract: <PICT:0866044/III/1> <PICT:0866044/III/2> The container shown at 1 is a cylindrical vessel with a top hopper 2 for solid particles into which solid particles pass from a hopper 2 through a pipe 17.  The vessel is divided into compartments by four horizontal supports, 4, 5, 6, and 7. Downflow pipes 8 enter openings in the supports and extend up from them to levels desired for the tops of the fluidised beds formed on the supports in operation.  The lower end of the pipe 17 and of each pipe 8 lies at a little distance above a support.  The material flows downwards through the pipe 8 from each bed to the next and finally out of the container 9.  The gas enters the container through a bottom inlet 3 and leaves it by a top outlet 10.  Each of the supports 4, 5 and 6 consists of a metal plate 11 carried by transverse angle irons 12.  In each of these plates circular holes 13; and below these holes there are baffles 14 formed by strips of metal each with its centre line lying immediately beneath the line joining the centres of a row of the holes 13, each strip leaving a gap between itself and the plate 11.  The strips are held by bolts 15 passing through the plate into and through the strips, and washers or nuts 16 are used to ensure that the desired gap is left.  The support 7 is constructed as shown in Specification 811,366.  Naturally the openings that allow the material to pass may be slots rather than drilled holes.  In general, the total cross-sectional area of the openings should be adjusted so as to be about 3% of the area of the support.  The width of the slots or the diameter of the circular holes should preferably be not less than 5 times the size of the largest particle in the fluidized solids.  There may be a separate baffle beneath each opening instead of a strip extending beneath a number of openings; and the gap between the plates of the support and the baffles below it may vary provided that the dimensions are all so correlated as to ensure that when the flow of gas ceases a pyramidal or like heap builds up on the baffle below the opening to seal the opening.  Moreover, the supports and baffles may be brickwork or other refractory material, which may be supported on watercooled tubes.
Patent GB-1049579-A (GB)
Title: Separating ammonia from trimethylamine
Inventor: HAARER ERICH
IPC: C01C1/00
Filed: 1963-09-10
Abstract: The individual components of a mixture consisting essentially of ammonia and trimethylamine, containing traces of mono- and di-, are separated by (a) cooling the mixture to - 55 DEG  to - 85 DEG  C., preferably - 65 DEG  to - 85 DEG  C., and (b) adding 0.5 to 6%, preferably 0.5 to 1.5%, by weight of water, in either sequence, and separating the resulting two layers from each other.  The lower layer, according to the examples, is the aqueous layer containing most of the ammonia.ALSO:The individual components of a mixture consisting essentially of ammonia and trimethylamine, containing traces of mono- and diare separated by (a) cooling the mixture to -55 DEG  to -85 DEG  C., preferably -65 DEG  to -85 DEG  C., and (b) adding 0.5 to 6%, preferably 0.5 to 1.5%, by weight of water, in either sequence, and separating the resulting two layers from each other.  The lower layer, according to the examples is the aqueous layer containing most of the ammonia.
Patent GB-1063492-A (GB)
Title: Potentiometers
IPC: H01C10/32
Filed: 1963-09-10
Abstract: 1,063,492. Potentiometers. SPECTROL ELECTRONICS CORPORATION. Sept. 10, 1963 [Sept. 12, 1962], No. 35703/63. Heading H1S. A sealed potentiometer comprises a non- conductive base member 80 having a central portion 82 forming a bearing post for a rotor 124 carrying a conductive cup member 140 which presses on a springy slip-ring contact 84 and carries a movable contact 142 in contact with a resistance coil or cord 106. The rotor is provided with an annular channel 132 for a sealing ring 134 and has a projecting nose 130 for co-operation with a stop 120. The slip-ring member 84 has a narrow U-shaped portion which is crimped on to a lead 92 and lies in a channel 94 in the base to prevent rotation of 84. A metallic sealing cap 112 compresses the sealing ring 134 and presses cup member 140 on to contact 84. The stop ring 118 may be integral with the base.
Patent GB-1493283-A (GB)
Title: Vacuum cleaner hose assemblies
IPC: F16L11/127
Filed: 1975-08-29
Abstract: 1493283 Electrical connectors DAYCO CORP 29 Aug 1975 [31 Oct 1974] 35778/75 Heading H2E A vacuum cleaner hose assembly comprises an elongate hose, a plurality of electrical conductors 43, 44 extending helically along the hose, each end of each conductor being adjacent a respective end of the hose, there being provided for each conductor end an electrical connector that is disposed lengthwise of the hose and has a knife portion that includes a slot in which is wedged an associated end portion of the corresponding conductor so as to provide a firm mechanical and electrical connection. A hose connection 51, 52 is fixed at each hose end being integral therewith and having the electrical connectors at the corresponding end of the hose embedded therein. As described, connections 51, 52 have a plurality of male and female connectors 47, 48 respectively located therein. Each connector 47, 48 is preferably in one piece having a knife portion 72 of single or double thickness, edges of a slot 74 therein cutting through a sleeve that insulates the conductors. The female connections 48 have a tubular end 66 for receiving a pin whilst the male connections have a substantially closed end (Figs. 10, 11, not shown). As shown, there are two helical conductors 43, 44 and hence, when the hose ends are cut as shown in Fig. 6, each pair of conductors 47, 48 has a conductor that is shorter than the other due to distance 65 between the wires 43, 44. The hose connections 51, 52 are preferably formed at the hose ends by injection moulding (Fig. 15, not shown) and the cutting of the hose ends and the coupling of the conductors and corresponding connections may be accomplished manually or semi-automatically (Figs. 13, 14, not shown).
Patent GB-952570-A (GB)
Title: Data transmission apparatus
IPC: H04M11/06
Filed: 1962-09-20
Abstract: 952,570. Telegraphy. WESTERN ELECTRIC CO. Inc. Sept. 20, 1962 [Sept. 29, 1961], No. 35794/62. Heading H4P. A telegraph receiver comprises means for responding to a received first condition signal, control means responsive to said means for responding for connecting the receiver means via signal inversion means to the means for responding whereby the latter becomes responsive to disable the receiver when signals are no longer being received. As shown, a plurality of sets of transmitter receiver equipment are connected to the public telephone system. Each set (Fig. 6) includes a telephone receiver and dial 604. An attendant at the originating station dials the number of a called station. If the called station is attended the two operators communicate in the usual manner using the teleprinters 603. The originating station sends its messages using mark and space frequencies F 1m , F 18 , respectively, and the called station sends replies using higher frequencies F 2m , F 2s . If the called station is unattended a control and logic circuit 605 waits one second under the control of a timer 610 then directs an answer back generator 620 to send a mark frequency F 2m  corresponding to the letter " V " to indicate that it is ready to receive a message. In response to this signal the originating station should then send a message using the frequencies F 1m , F 1s . These frequencies when received at the called station are amplified at 607, passed through an appropriate band of a filter 614 and after being limited at 616 and inverted at 619 are fed to the timer 610 and to the teleprinter keyer circuit 622. The timer 610 is arranged to time each of the space frequencies F 1s  to see if any of them are of more than one second duration. If this occurs it is assumed that the message is complete and the teleprinter switches off. This will also happen if no signal is received or if the signal is too weak. For test purposes the operator of a set may call up a test station and if required may first depress a disconnect key followed by an answering key to cause the test station to automatically take over as the originating station, i.e. the frequencies F 1m , P 1s  are used instead of F 2m , F 2s  and vice versa. Specifications 676,779 and 677,191 are referred to.
Patent GB-760566-A (GB)
Title: Telegraph transmitter
IPC: H04L17/06
Filed: 1954-12-10
Abstract: 760,566. Telegraph transmitters. TELETYPE CORPORATION. Dec. 10, 1954 [Dec. 10, 1953], No. 35809/54. Drawings to Specification. Class 40 (3). The description is the same as that of Specification 760,565, but the claims relate to the stabilization of the operation of the rocker member, which is tiltable in one direction or the other to operate the transmitter contacts, by two retainer elements spring-biased into engagement with the rocker member and cooperating with each other to serve alternately as a holding member and as a steadying member respectively for the rocker member in each of its tilted positions. Specification 677,191 also is referred to.
Patent GB-436047-A (GB)
Title: Improvements in flash-light lamps
IPC: F21K5/08
Filed: 1934-12-13
Abstract: 436,047. Flash-light lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Dec. 13, 1934, No. 35813. Convention date, Dec. 15, 1933. [Class 75 (i)] Relates to flash-light lamps of the kind in which the material producing the actinic light is enclosed in a bulb which also contains a substance adapted to indicate the leakage of air into the bulb. Cobalt chloride has been proposed for this purpose, its colour being changed by the water vapour in the incoming air. According to this invention, better results are obtained by the employment of complex cobalt compounds which are also changed in colour by the water vapour, for example, cobaltocobalticyanide, hydrazoniumcobaltohalogenide, and nickelcobalticyanide. The substance is inserted in the bulb on a paper strip, preferably against a background facilitating the observation of the changed colour.
Patent GB-754925-A (GB)
Title: Improvements in or relating to the hot plating of sheet metal
IPC: C23C2/14
Filed: 1954-12-10
Abstract: 754,925. Tinning metal. ETABLISSEMENTS J. J. CARNAUD & FORGES DE BASSE-INDRE. Dec. 10, 1954 [Dec. 29, 1953], No. 35878/54. Class 82(2). Sheet metal is tinned by being introduced immediately following its cleaning, into a bath of oil heated to the plating temperature, passed immediately from this bath at the plating temperature into a bath of molten tin and then passed immediately into a finishing bath of oil having the same temperature wherein surplus tin is deposited and scraped off, preferably passing through rolls within the oil. An apparatus for tinning continuous strip comprises a chamber 11 filled with oil which is maintained at the temperature of the tin bath by heating elements 25. These elements comprise a tube having a burner at one end and a common flue at the other end and extend transversely of the bath. The strip 40 passes through this bath over a sill 15 into the coating bath 14 which contains the tin and a superimposed layer of the oil. Heaters 25 similar to the ones in bath 11 but supplied with hot gases, maintain the bath temperature. Asbestos members 50 guide the strip, which is fed obliquely into the tin by a guide 45. The coated strip leaves the tin bath under a wiper 51, over the surface of a curved plate 41, and through a wiper 65 and smoothing rolls 79, the two latter being immersed in oil in the tower 10. The strip then passes to a blowing device to remove oil, and over a drum 43 to a spooler. The wiper 51 is pivotally and transversely movable by manual mechanism fully disclosed. The wiper 65 consists essentially of asbestos strips 70 backed by bars 71 which act as pistons under adjustable oil pressure from a series of manifolds 76. The staggered spacing strips 69 are provided with holes supplied by pressure oil from manifolds 77 and this oil washes off, and removes, surplus tin. The pressure on the strips 70 can be varied to vary the force of scraping action. The rollers 79 are journalled in bearings, the left hand ones being fixed bearings and the right hand ones being slidable to the left under controllable oil pressure to vary the degree of smoothing. The blowing device comprises two heavy cylinders 87 carried on levers 97 and spaced apart in free fashion by a spring-loaded rod 99 so that by gravity the cylinders hang at equal distances from each side of the strip 40. Vapour is supplied to the boxes 89 and thus to openings 91 variable in width by plates 92.
Patent GB-861607-A (GB)
Title: Improvements in or relating to change-speed gears for cycles
Inventor: BARTON DESMOND
IPC: B62M9/126
Filed: 1957-11-19
Abstract: 861,607. Change-speed chain gear. RESILION CO. Ltd. Oct. 24, 1958 [Nov. 19, 1957], No. 35950/57. Class 80 (2). [Also in Group XXXIV ] In a bicycle change-speed gear of the chainshift type, wherein jockey wheels j, k are rotatably mounted on a combined chain shifting and tensioning arm comprising sidebars a, b secured to the slidable member d of a shift mechanism such as that described in Specification 664,186, the inner races of the jockey wheel ball-bearings each comprises two interthreaded cones n one of which has on its outer face a gapped wall o forming a recess receiving one of two cranked arms f, g of the side bar a, thereby preventing rotation of the cone relative to the arm, and the other of which cones adjacent to the side-bar b has spanner flats p for adjustment, a screw l being provided for locking. The side-bar a has a cranked lug c for securing the composite arm a, b to the member d.
Patent GB-473017-A (GB)
Title: Improvements relating to means for regulating the performance of engines, particularly fuel injection engines
IPC: F02D1/00
Filed: 1935-12-30
Abstract: 473,017. Fuel-injection pumps. SOC. PROVENCALE DE CONSTRUCTIONS AERONAUTIQUES, and VAUDET, P. L. Dec. 30, 1935, No. 36015. Void. Convention date, Dec. 28, 1934. Drawings to Specification. [Class 102 (i)] [Also in Group XXIX] The fuel feed of engines, e.g. injection engines of aeroplanes, is regulated by a member displaceable by a fluid pressure depending on two factors such as the speed and the load or the power required. In Fig. 2 (not shown), a pump mounted on the fuel pump shaft and therefore driven at engine speed, feeds oil in a closed circuit containing a spring-controlled valve, the pressure in the circuit controlling a spring-pressed piston regulating the timing of the ignition of the injection. Specification 442,475 is referred to.
Patent GB-1513138-A (GB)
Title: Equipment for detecting variations in direct current flowing in an electrical conductor
IPC: G01R19/12
Filed: 1974-08-16
Abstract: 1513138 Measuring voltage IMPERIAL CHEMICAL INDUSTRIES Ltd 25 July 1975 [16 Aug 1974] 36166/74 Heading G1U [Also in Division H2]  Each of a plurality of direct currents Ic1, Ic2... to be monitored controls the resonant frequency of a respective tuned circuit, the tuned circuits being connected together to a common supervising arrangement which is responsive to change in the resonant frequency of any circuit. The tuned circuits comprise saturable inductors whose degree of saturation is controlled by the direct current. They are connected together to form a parallel, series or ladder network which is energized from an oscillator whose frequency is repetitively swept under the control of a ramp voltage VR. As each tuned circuit resonates a peak occurs in the oscillator output, and an alarm is given if any of the resonant frequencies is too high (signifying an unacceptably high current level) by detecting whether any peak occurs whilst the ramp voltage is above a reference level. The currents may be the anode currents of an electrolytic cell, occurrence of the alarm initiating action to withdraw the anodes.
Patent GB-1536307-A (GB)
Title: Internal combustion engine having a combustion air supply apparatus
IPC: F02B1/04
Filed: 1976-09-01
Abstract: 1536307 By-pass air control valves DR ING hcF PORSCHE AG 1 Sept 1976 [2 Sept 1975]  36167/76 Heading F1B An extra air-flow control valve 16 allows increased air-flow by by-passing throttle valve 12 when the manifold depression is low i.e. at cranking speed so as to increase the flow of fuel/air mix to the engine controlled by the air quantity measuring element 5b. The valve 12 monitors the differential pressure across the throttle and an independent temperature operated by-pass slide valve 10 may be included. In an alternative embodiment, Fig. 3, the bypass channel 26 downstream of the throttle provides the control pressure relative to atmospheric (via duct 34). Throttle 31 damps the action of membrane 28. The arrangement may be used with or without the valve 10 of Fig. 1.
Patent GB-970915-A (GB)
Title: Improvements relating to mechanical couplings
Inventor: FRANKLIN SIDNEY HENRY
IPC: F16D3/74
Filed: 1962-09-24
Abstract: 970,915. Universal joints; springs. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 19, 1963 [Sept. 24, 1962], No. 36223/62. Headings F2U and F2S. A universal coupling between shafts of a motor and a tacho-generator (Fig. 4, not shown), comprises a helical metallic spring 7 around which is moulded a synthetic elastomer 1 having one or more axially disposed key portions 4, 5 and 6 which engage with keyways of the coupled shafts, the ends 8, 9 of the springs 7 extending into and reinforcing the key portions 4, 5. A chamfer 2 at one end of the coupling 1 facilitates assembly.
Patent GB-368286-A (GB)
Title: Improvements in or relating to radio high frequency receivers
IPC: H04B1/26
Filed: 1930-12-02
Abstract: 368,286. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, KEMP, C. G. and KEMP, L. G., 92, Upper Cedar Road, Southampton. Dec. 2, 1930, No. 36323. [Class 40 (v).] In order to adjust the local oscillator of a superheterodyne receiver to produce an intermediate frequency exactly equal to the middle frequency of the band for which the intermediate frequency amplifier is designed, without interruption of signal traffic, energy from the intermediate amplifier is fed to a branch circuit and combined with local oscillations of a frequency in fixed relation to the desired intermediate frequency, the combined oscillations being detected and the resultant beat (if any) indicated or observed. The Figure shows the push-pull second detector V1, V2 of a superheterodyne receiver fed from the intermediate frequency amplifier through the secondary T1 of a coupling transformer. A branch circuit is led through blocking condensers K1, K2 to a push-pull frequency doubling detector V3, V4 such as described in Specification 347,272. The output circuit comprises either an acceptor circuit C1, L1 tuned to double the input frequency, or part of the inductance of a parallel resonant circuit, or an acceptor circuit whose inductance is part of the inductance of a parallel resonant circuit, all circuits being tuned to twice the input frequency of V3, V4. The output is transferred from Ll to the input L2, C2 of an anode detector V5 and is there combined with local oscillations from V6, transferred through aperiodic couplings L3, L4. The oscillator V6 is adjusted to a frequency twice the middle frequency of the intermediatefrequency band and any beats, detected by V5 and passed to the telephones, indicate incorrect adjustment of the heterodyne oscillator which is readjusted until beats disappear without interrupting signal traffic.
Patent GB-1389122-A (GB)
Title: Method for expanding microspheres and expandable composition
IPC: C08J9/22
Filed: 1972-08-04
Abstract: 1389122 Expandable microcapsules DOW CHEMICAL CO 4 Aug 1972 [5 Aug 1971] 36603/72 Heading B8C Microcapsules which are expandable on heating to a temperature below 100 C. and are composed of a thermoplastic polymer mantle enclosing a volatile liquid raising agent are, before being heated, contacted with an aqueous solution containing 0À15 to 2 hydrogen gram equivalents per 100 grams of water of a watersoluble metal salt. To form the expanded microcapsules, unexpanded microcapsules which have been so treated are heated in contact with water to a temperature sufficient to drive off the volatile core material and expand the mantles. Suitable salts include: CaCl 2 , MgCl 2 , BaCl 2 , ZnCl 2 , NaCl and FeCl 3 . Preferred polymers are vinylidene chloride copolymers, e.g. with acrylonitrile.
Patent GB-366380-A (GB)
IPC: G03C1/795
Abstract: 366,380. Photographic films. KODAK, Ltd., Kodak House, Kingsway, London.- (Assignees of Wells, J. B. ; Kodak Park, Rochester, New York, U.S.A.) May 7, 1931, No. 13523. Convention date, May 17, 1930. Drawings to Specification. [Class 98 (ii).] An antihalation film support of cellulose acetate is provided, between the antihalation colour backing and the support, with a layer of cellulose acetate of lower precipitation value than that of the support, in order that the dye in the colour backing may bleach out more readily in the developing &c. baths. The support is formed of cellulose acetate of precipitation value greater than 75 per cent, and preferably greater than 90 per cent ; while that of the intermediate layer is between 25 per cent and 75 per cent, and preferably about 70 per cent . A method of determining the precipitation value is described in the Specification. Colour backing dyes of the kind described in Specification 280,162, [Class 98 (ii), Photographic processes &c.], may be used.