baber/WOPTO huggingface dataset:
Patent GB-896598-A (GB)
Title: Elastomers obtained from alpha-olefin polymers and copolymers and process for their preparation
IPC: C08F255/02
Filed: 1958-06-09
Abstract: A substantially saturated cross-linked elastomer comprising a substantially amorphous linear high molecular weight polymer or copolymer of an alpha-olefin of the formula CH2=CHR where R is a 1-4 C alkyl group, and units of one or more polymerizable aromatic hydrocarbons which contain at least one ethylenic double bond in the molecule or of an aliphatic diene, is made by curing the polymer or copolymer in the presence of the aromatic hydrocarbon or diene, and an activator acting with a free-radical mechanism.  The curing is preferably effected at a temperature between 100 DEG  and 250 DEG C. The aromatic hydrocarbon may be styrene, divinyl benzene, or a mixture containing 60,5% divinylbenzene, 15,4% ethylvinylbenzene, and 24,1% saturated aryalkyl hydrocarbons.  Specified dienes are butadiene, isoprene, and dimethylbutadiene.  The high molecular weight polymer may be polypropylene, polybutene, or a copolymer of ethylene and propylene, or butene.  The activator may be dibenzoyl peroxide, dicumyl peroxide, tert. butyl peroxide, chlorobenzoyl peroxide, or tert. butyl perbenzoate.  The mix to be cured may contain a filler such as a metal oxide, silicate, silica, or carbon black. Specification 885,969 is referred to.
Patent GB-639011-A (GB)
Title: Improvements in preparation of materials having vitamin e activity
IPC: C07D311/72
Filed: 1947-07-11
Abstract: b - and d -Tocophenols or an ester of b -, g - or d -tocophenol are converted into the corresponding a -tocophenol compound having a higher vitamin E activity by methods known to be capable of introducing an alkyl, aryl or aralkyl group into a benzene nucleus containing an hydroxyl group, for example by treating with the corresponding aldehyde or a compound forming such an aldehyde under reaction conditions, in the presence of hydrogen halide and subsequently reducing the product of such reaction to the desired alkyl, aryl or aralkyl derivative.  The reduction may be effected by means of zinc dust and hydrochloric acid or catalytically.  An alternative method of introducing alkyl groups into the benzene nucleus is by means of the Mannich reaction, i.e. by condensation with ammonia or a primary or secondary amine and formaldehyde, followed by catalytic hydrogenation.  Detailed examples are given. Specification 634,128 is referred to.
Patent GB-292933-A (GB)
IPC: C07C7/00
Filed: 1928-06-25
Abstract: 292,933. Hofmann, F., and Stegemann, W. June 25, 1927, [Convention date]. Mineral oils, purifying.-Oils originating from coal are refined by treatment with gaseous orliquid hydrofluoric acid, with or without the addition of metal halides or other refining agents, and optionally at higher temperatures or pressures, or both. In an example, a crude benzene is treated with 3 per cent hydrofluoric acid. The acid is removed by heating and the benzene is. distilled.
Patent GB-501915-A (GB)
Title: Telephone exchange systems
IPC: H04M1/78
Filed: 1937-07-02
Abstract: 501,915. Exchange systems; two-way transmission. BERRY, R. J. (Lorenz Akt.- Ges., C.) July 2, 1937, No. 18436. [Class 40 (iv)] Telephone substations are modified so that incoming traffic may be in the form of modulated carrier currents, no switching operations being necessary on the part of the subscriber to make the change from normal working. In one arrangement, Fig. 2, the microphone M and receiver T are separately bridged across the incoming line through high-frequency chokes, and the receiver is further connected to the line through a rectifier G and condensers C. In a further arrangement, Fig. 3 (not shown), the telephone receiver has two windings, one being associated with the line and microphone in an anti-side-tone circuit, and the other being fed with rectified high-frequency currents over a by-path. In a development of this circuit, Fig. 4, the use of two windings is avoided by arranging a relay A, which responds to a high-voltage impulse and locks up to the exchange battery, to switch the ordinary receiver over from its normal connection to the carrier by-path. Relay A also opens a part of the anti-side-tone circuit. The modulated carrier signals may be received over a junction or may be derived from low-frequency signals received over a junction. The latter arrangement eliminates a portion of the balancing arrangements which would otherwise be necessary. Fig. 6 shows an arrangement whereby low-frequency signals arriving over a two-wire junction D are converted by a modulator M<SP>1</SP> to high-frequency form. High- and low-pass filters M, N, H and amplifiers V, V are provided also.
Patent GB-689369-A (GB)
Title: Method and apparatus for the regeneration of contact material
IPC: B01J8/12
Filed: 1951-08-03
Abstract: <PICT:0689369/III/1> In a process for the regeneration of solid particle foam contact material contaminated with a carbonaceous deposit, the contact material is passed downwardly through a burning region as a compact gravitating column, and combustion supporting gas is introduced at an intermediate point in the column, the gas being split into two streams one passing upwardly to burn off part of the contaminant and being withdrawn at the top of the column, the other passing downwardly to burn off further contaminant and being withdrawn at the bottom of the column.  This portion of the gas, as well as the contact material, is cooled in a heat-exchange zone at the lower part of the column.  In Fig. 2 spent contact material is fed to the annular kiln 22 through pipes 21 and is distributed by domes 42 and pipes 44 to the burning zone below. Combustion supporting gas is introduced at 100 and passes down pipes 46 to the centre of the burning zone.  Combustion gases are withdrawn in part upwardly for evacuation through pipe 48.  The remainder flow downwardly with the particles and are removed in the free space formed by radial roof-like structures 51, through pipes 58 to a plenum chamber 53 and exhausted through pipe 66. Cooling gas is passed by blower 59 to the inside of the roof-like members 51 to cool the gas collecting therein, the whole being withdrawn through pipes 58.  The regenerated catalyst is withdrawn through pipes 54 and 56 to a vessel 16 from which it is lifted by a gas lift pipe 68 passing through the centre of the annular kiln to a point above the reactor which surmounts the kiln.  A cooling system 50 is also provided.  In place of a single annular kiln, a number of smaller kilns of the same pattern may surround the central gas lift pipe.  The cooling system 50 (see Group XIII) preferably comprise a number of adjoining segments made up of hairpin-bend cooling coils connected to inlet and outlet headers and a multiplicity of superposed levels of coils are provided, the operation of some or all of which controls the cooling. The reversing elbows of the hairpin coils have lugs which bear on radial shelf supports to permit expansion and to allow individual segments to be replaced if necessary.  The regeneration process is particularly suited for hydrocarbon cracking plants and other processes where carbonaceous deposits occur.  The contact material may be catalytic or inert refractory such as mullite or iron balls.
Patent GB-1270691-A (GB)
Title: Microwave tube apparatus
Inventor: MIRAM GEORGE VALENTINE
IPC: H01J23/065
Filed: 1969-04-10
Abstract: 1,270,691. Velocity-modulated tubes. VARIAN ASSOCIATES. 10 April, 1969 [12 April, 1968], No. 18519/69. Heading H1D. In a microwave tube-e.g. in which an electron beam is projected through a sequence of re-entrant cavity resonators - having a magnetic focusing structure formed by a solenoid 9 surrounded by a magnetic yoke 13 and a pair of apertured pole plates 11 and 12, the electron gun includes, within the bore 14 of the cathode pole plate 11, the cathode emissive surface 16 and a surrounding magnetically permeable shunt member 22 overlapping the bore axially by a length l such that I is greater than 2r where r is the radial spacing between the shunt member and the bore, whereby to minimize leakage of the beam focusing field through the bore, and eliminate the need for additional field-shaping coils. As shown, Fig. 3, the bore 14 in the pole plate 11-via which plate the anode potential may be applied to the main anode 24-is lengthened by a cylindrical iron sleeve 21, the soft iron cylindrical shunt 22 being supported therein by a conical shaped support and lead 36 sealed through the insulating envelope portion 35, and itself supporting at its forward end a non-magnetic modulating anode 27. The cathode 16 is supported by tubular member 26 from a non-magnetic focusing electrode 23, the arrangement being such that the magnetic field lines conform to the converging shape of the electrostatic field lines. In a further embodiment (Fig. 4, not shown), the uniform cylindrical portion of the focusing electrode 23 is also of magnetic material, to decrease still further the leakage of flux through bore 14.
Patent GB-388280-A (GB)
Title: Improvements in and relating to resilient shock absorbing devices for road vehicles
IPC: B60G11/12
Filed: 1932-06-30
Abstract: 388,280. Spring shackles ; absorbing lateral shocks. KINKEAD, F. M., 430, West 124th Street, New York, U.S.A. June 30, 1932, No. 18530. [Classes 108 (ii) and 108 (iii).] The side links 14 of a shackle connecting an eye of a laminated spring 15 with a vehicle frame are recessed to accommodate means for absorbing lateral shocks and centreing the spring eye relatively to the links. A sleeve 24 may surround the bolt 13 on which the spring 15 pivots and the lateral shockabsorbing means may comprise helical springs 18 or rubber sleeves. Bushes 17 may be interposed between the spring eye and the springs 18.
Patent GB-372607-A (GB)
Title: Improvements in packings for the moving parts of pumps for liquids
IPC: F16J15/18
Filed: 1931-06-26
Abstract: 372,607. Valve components. SCHOENE, K., 74, Adolph Strasse, Hamburg, Germany. June 26, 1931, No. 18548. [Class 135.] Closure members, piston.-A packing for slide valves of pumps comprises a packing ring 7 arranged in the valve or its housing and expanded or compressed by a member 8 expanded by the pressure liquid. An edge 5 of the ring 7 coacts with a complementary part 6 of the pump to close the port controlled by the valve. A removable ring may be included behind the ring 7 to limit expansion of the ring 8. The valve 2 may be formed with extensions 11 to retain the packing in the cylinder wall when the valve is open. Specification 25682/11, [Class 122 (i), Engine and like cylinders &c.], is referred to.
Patent GB-1048142-A (GB)
Title: Phase shifter for micro-wave and impedance plotter
IPC: G01R27/02
Filed: 1964-05-05
Abstract: 1,048,142. Phase modulation. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. May 5, 1964 [Aug. 20, 1963; Oct. 21, 1963], No. 18598/64. Heading H3R. [Also in Division G1] A micro-wave phase modulator comprises a rotating disc 2, Fig. 1 (not shown), inserted into a slit formed at the centres of upper and lower surfaces of a rectangular waveguide 1, the disc being divided into m sectors wherein the radius is proportional to the angle and wherein the difference between maximum and minimum radii is #γg/2 where n is an integer and #g is   the wavelength in the guide. If the disc rotates at frequency p, energy reflected in the waveguide is phase modulated at a frequency m.n.p.
Patent GB-638806-A (GB)
Title: Eyelash curler and mascara applier
IPC: A45D2/48
Filed: 1948-07-12
Abstract: 638,806. Eyelash curlers. MARCELLUS, A. July 12, 1948, No. 18644. [Class 131] An eyelash curler and mascara a applicator, which can be used to apply adhesive to the eyelids to which false eyelashes may be stuck, comprises a stationary, curved jaw 10, supported by a handle 12 for engagement against the eyelid at a point above the eyelashes, and a curved jaw 16 on which is mounted a resilient strip 19 and an applicator brush 32 and which is moved by handle means 23 to clamp the eyelashes against the stationary jaw. The brush is removably mounted on resilient fingers 35 projecting from loop guides 27 for the movable jaw. In a modification the distance of the brush from the resilient strip, and hence the amount of mascara applied to the eyelashes, can be adjusted by screws which flex the fingers 35.
Patent GB-959471-A (GB)
Title: Improvements in time-temperature integrator
IPC: G01K3/04
Filed: 1961-05-24
Abstract: 959,471. Measuring electrically. GENERAL ELECTRIC CO. May 24, 1961 [June 30, 1960], No. 18742/61. Heading G1N. [Also in Division G4] A device for integrating temperature with respect to time (e.g. for indicating the operating history of components in a jet engine) comprises two materials in intimate contact and means for measuring the change of resistance of one of the materials due to diffusion of the materials into each other. The materials may be arranged concentrically (Fig. 2) and the outer material may be a solid, liquid, or gas. Alternatively the materials may be formed into wires 17, 18 (Fig. 4) and woven together, intimate contact being obtained by subsequent swaging and/or drawing, and further wires 19 may be added to alter the diffusion characteristics. In another embodiment (Fig. 5 not shown), a mixture of two or more powders is arranged in a sleeve, the particle size, shape, distribution and degree of compacting determining the diffusion characteristic. If semiconductor materials are used high-purity pellets may be sintered, and the diffusing material subsequently applied to the surfaces, which may then be glazed, or the pellet may be encapsulated. Suitable materials include nickel with 10% titenium hydride; or with 10% alnico 7; or with 10% manganese; or with 2% silicon; or with 10% chromium. The use of germanium and silicon with impurities is also referred to. The materials and manufacturing conditions are chosen so that the change of resistance is proportional to the change of physical strength of the part being tested. In use two detectors are connected in the arms of a D.C. bridge, the other two arms comprising variable resistors, or preferably fixed reference resistors in series with variable resistors. The reference resistors may consist of the same materials as the detectors after complete diffusion has taken place.
Patent GB-613646-A (GB)
Title: Improvements in or relating to a centrifugal spraying device
IPC: B05B3/08
Filed: 1946-06-24
Abstract: 613,646. Spray-producers. NORRIS, E. O. June 24, 1946, No. 18864. Convention date, June 29, 1945. [Class 69 (iii)] A centrifugal paint spraying machine comprises a reservoir 10, a gravity fed centrifugal distributer 24 having a casing 42 surrounding it open at one sider to permit ejection of the spray and a receiver 14 beneath the casing from which intercepted paint is returned to the reservoir by a passage 60 on inverting the sprayer and an electric motor casing 72 serving as a handle. The paint flows through a valved port 22 and spout 23 to a series of frustoconical rings having upturned peripheral lips 65 mounted on a ring 70 with radial arms 68, conical screens 74 surmounting the ring. Air is drawn through the spray opening 56 and screens 74 by a two-stage impeller 76, 77 beneath the distributer and discharged through baffles 79, 80 above the motor 72 to atmosphere, this facilitating a clean spray free of mist. A shield 85 normally shields the spray opening 56, but swings under gravity about a pivot 86 to uncover the opening on a handle 32 connected to a spring-controlled lever 30 being operated, the latter allowing a shouldered cam on the pivot rod 86 to turn against the action of a projection on the lever. The lever 30 operates simultaneously a valve 25 for the spout 23, but a lost-motion slot connection 29 is provided between an arm 28 on the valve and lever 30 to allow initial dropping of the shield before opening of the valve 25 and closing of the valve before the shield is completely raised. Shutters 52 adjustably limit the spray opening 56. The distributer, impeller and motor form one units screwed into the receiver 14.
Patent GB-357568-A (GB)
Title: Improvements in call metering in automatic and semiautomatic telephone systems
IPC: H04Q3/00
Filed: 1930-06-21
Abstract: 357,568. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. June 21, 1930, No. 18990. Convention date, June 28, 1929. [Class 40 (iv).] At a first group selector, partial operation of a two-step relay holds the release relay and full operation thereof, on response of the called party or at the end of conversation, effects metering. Repeated metering impulses may be sent in accordance with the destination of the call. Release relay HR is operated by line relay IR, and when switching relay PR operates, an ineffective circuit is completed for two-step relay SR which is differentially wound, RR pulls up in place of IR and operates TR which directly short circuits the upper winding of SR but, as resistance R is in series with the lower winding, this relay partially operates and closes contacts 10 to hold release relay HR. Relay RR repeats impulses in a loop circuit over the junction. When metering relay MR is operated in any known manner, the lower winding of SR and resistance R are short circuited and SR operates fully over its upper winding to complete the circuit of meter SM. When the calling party replaces his receiver RR falls back and releases TR so that SR falls back and releases HR. The two step relay may have a single winding in series with a resistance which is short-circuited by MR, and may be provided with two armatures operated by currents of different strengths.
Patent GB-973489-A (GB)
Title: Improvements in or relating to martensitic-stainless steels
Inventor: MORLEY JOHN IVAN
IPC: C22C38/42
Filed: 1961-05-25
Abstract: A corrosion-resistant martensitic steel has the following composition: <TABS:0973489/C6-C7/1> the balance being iron plus usual impurities. Heat treatments described are (1) air cooling from 1050 DEG C., (2) air cooling from 1050  DEG C. followed by two hours at 450  DEG C. or 550  DEG C., and (3) 1050  DEG C., air cooling, two hours at 750  DEG C., air cooling, two hours at 550  DEG C. and finally air cooling.
Patent GB-274510-A (GB)
Title: Improvements in electric conductors for electric machines and apparatus
IPC: H02K3/14
Filed: 1927-07-18
Abstract: 274,510. Skoda Works, Plzen. July 16, 1926, [Convention date]. Conductors. - A conductor for electrical machinery or apparatus consists of several conductors piled in layers and arranged in groups one beside the other, and the individual conductors are so shaped that they have at intervals bent transition points at which they change their level and pass simultaneously from one group into another, by being first directed sideways, then. downwards on the out-side of the composite conductor and ending in a straight portion forming part of the other group. Fig. 1 shows a composite conductor comprising two groups of superposed layers. Each individual strand of the conductor is formed with a bend x so shaped that, for example, a strand passes from the top of group 1 to the bottom of group 2. Fig. 4 shows a conductor consisting of four groups of superposed layers 1 - - 4. In a modification, the conductor may be formed in two similar halves fitted together so that the bends in the two halves are located at opposite, sides. The. lengths of each individual strand per unit length of the composite conductor are equal. Insulation may be provided between the separate elements.
Patent GB-581319-A (GB)
Title: Improvements in or relating to sealing closures for milk bottles and other vessels
IPC: B65D41/42
Filed: 1944-10-05
Abstract: 581,319. Closure caps for bottles &c. THOMAS, D. P. Oct. 5, 1944, No. 19087. [Class 125 (iii)] A closure cap for a milk bottle &c. comprises an imperforate portion 2 from which extends a substantially cylindrical wall 3 slit at 5, a tab 4, extending from the portion 2, being attached by glue, wire-stitching &c. to the wall 3, on each side of the slit 5, to hold the edges thereof together and the cap in place on the bottle neck 6. To open the bottle &c. the tab 4 is pulled to separate it from the wall 3, the slit 5 then opening to enable the cap to be removed. The imperforate portion may alternatively comprise a dishlike member to which is secured a disc portion carrying the tab 4, the outer wall of the dish-like portion being attached to the slit band 3 to which the tab 4 also is attached, as above.
Patent GB-828740-A (GB)
Title: Improvements in or relating to electric couplings
IPC: F21V21/03
Filed: 1957-06-18
Abstract: 828,740. Ceiling roses; two-part couplings. WARD & GOLDSTONE Ltd., and BRECKIN, P. H. June 13, 1958 [June 18, 1957], No: 19110/57. Class 38 (1). A ceiling rose of the type comprising two separable contact carrying parts has a detachable part comprising a conical exterior member 10 accommodating a standard lampholder interior 12 retained by a ring 17, having keyhole slots 18 which are engaged by parts 19 of screws 20. The detachable part is fixed to the stationary part by the bayonet slots 25 and screws 24. The slots 25 are in the ceiling plate 21 which is fixed to the edges of a display canopy. A standard lampholder adaptor 27 is mounted on a cranked bracket 26, fixed to 21, with its contacts spaced from the plane of plate 21 and above the clearance hole 28 so that they are engaged by the spring plunger contacts 16 of the lampholder interior 12 when the coupling is assembled. In Fig. 6 the coupling is modified for domestic use. The plate 21 is set flush with a moulded circular block 37 and secured to it by eyelets 38, wood screws passing through these to the ceiling structure. The block 37 is centrally recessed at both faces and'the intervening web 39 carries a pair of flush contacts 40 screwed to terminals 41.
Patent GB-374653-A (GB)
Title: A new or improved fringing appliance applicable to machines for wrapping or parcelling confectionery or the like
IPC: B65B51/00
Filed: 1931-07-03
Abstract: 374,653. Wrapping confectionery. MACKINTOSH & SONS, Ltd., J., Albion Mills, and MADDISON, C. W., 2, Atlanta Terrace, Pye Nest, both in Halifax, Yorkshire. July 3, 1931, No. 19176. [Class 94 (i).] Wrapping- machines for parcelling confectionery &c. in which the wrapper is partly folded around the article, the projecting ends being then twisted, are characterized in that means are provided whereby the projecting ends of the wrapper are cut, to give a fringe effect, during the wrapping operation. Each of the confections B contained in a mould wheel and surrounded by a wrapper C folded in tube form with open projecting ends, is moved intermittently until a pair of spring-biased multiple scissor-like cutters E, F, disposed on each side of the partially wrapped article, are actuated to cut the projecting tube ends to form a fringe, Fig. 6. The next step of the motion of the wheel brings the fringed partiallyfolded package to the normal twisting jaws which twist the ends, Fig. 7. Alternatively the cutters may be incorporated with the twisting jaws so that as the jaws close the fringing is effected, after which the jaws are revolved to effect the twisting to complete the package.
Patent GB-1534957-A (GB)
Title: Sweeteners
IPC: A23L27/20
Filed: 1976-05-11
Abstract: 1534957 Sweeteners DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 11 May 1976 [16 May 1975 5 April 1976 15 April 1976] 19316/76 Heading A2B [Also in Division C2] 2-Hydroxy-4-methyl valeric acid, or a salt thereof, in the D, L-form, the D-form or the L-form, is used as a sweetener in foodstuff or beverage. The salt is for example an alkali metal, alkaline earth metal, aluminium or ammonium salt.