baber/WOPTO huggingface dataset:
Patent GB-699717-A (GB)
Title: Improvements in or relating to oxo alcohol quality
IPC: C07C29/16
Filed: 1951-10-17
Abstract: At least part of the alcohol, produced by hydrogenation of the aldehydic reaction product of olefins, carbon monoxide, and hydrogen in the presence of a cobalt catalyst, is recycled to the hydrogenation zone which contains a sulphactive catalyst such as molybdenum sulphide on active carbon whereby sulphur is removed. The product obtained with freshly sulphided catalyst has a p comparatively high sulphur content and is stored until a product with a sulphur content below 10 p.p.m. is obtained.  The stored alcohol is then blended with aldehyde product and passed to the hydrogenator. This may operate at 400-550 DEG  C. and 2500-4500 p.s.i., and up to 8 or 10 per cent of water may be present.  The catalyst may be prepared by impregnating the carrier with molybdenum oxide or ammonium molybdate, heating to 200-400 DEG  F., and sulphiding.  Excess sulphiding agent is purged and, preferably, inert hydrocarbon passed for several hours prior to feeding aldehyde.  The alcohol product may be alkali scrubbed, and topped or distilled prior to recycling.  The alcohol obtained, in particular octyl alcohol from C7 olefins, is suitable for producing plasticizers by esterification with, for example, phthalic anhydride.ALSO:A hydrogenation catalyst consists of about 10 per cent molybdenum sulphide on charcoal and is prepared by impregnating an activated charcoal such as coconut charcoal with molybdenum oxide or ammonium molybdate, drying, heating to about 200-400 DEG F, and sulphiding with hydrogen sulphide, carbon disulphide or the like.
Patent GB-302627-A (GB)
Title: Method of producing leather shoes
IPC: A43D95/06
Filed: 1927-09-15
Abstract: 302,627. Berger, C. Sept. 15, 1927. Coated fabrics.-Patent leather boots and shoes are manufactured by coating leather uppers subsequent to their cutting out with a mixture of dissolved resin and nitro-cellulose wool and applying to the smooth surface thus formed a varnish comprising a solution of softening medium and a dye and nitro-cellulose wool. The shoe may be thus treated after the upper has been drawn on the last or pegged down. In welted shoes, the treatment is carried out after the sewn seam has been made, or before the sole is secured to the sewn shoe, or the shoe may be completely finished before being treated.
Patent GB-532286-A (GB)
Title: Improvements relating to circuit arrangements for the control of motors serving as individual drive of selectors in telephone or like selective systems
IPC: H01H63/22
Filed: 1939-08-24
Abstract: 532,286. Automatic exchange systems. SIEMENS BROS. & CO., Ltd. (Fides Ges. fur Die Verwaltung und Verwertung Von Gewerblichen Schutzrechten). Aug. 24, 1939, No. 24382. [Class 40 (iv)] An electric motor driving a selector and having its armature rotated by alternate operation of two windings under the control of armature-operated cam-contacts is operated step-by-step in response to impulses by arranging that the windings may be simultaneously energized over a bridging connection which is opened to de-energize one or other of the windings by a relay which operates and releases on alternate impulses. The switch described responds to two digits, stepping over groups in response to the first and stepping as above in response to the second. The impulse-repeating series and change-over relays A, V, U are represented only by their contacts. On the first operation of A, the windings MI, MII are bridged over wiper d, and V grounds the connection over the cam contacts 1, 2, and on its first relapse the bridge is opened but MII remains energized and steps the switch. If the digit is 1, V falls back and the switch waits for the next digit. If the digit is other than 1, A pulls up again and MI, MII operate under the control of the cam contacts independently of A until contacts 11 are reached. If A and H, which follows A, are still operated, a bridge exists over d and the switch stops, but if they have released there are independent circuits for MI, MII and the switch nevertheless stops. Further group stepping occurs insimilarmanner, the switch being stopped with cam contact 1 closed. Stepping over independent contacts is accomplished with the aid of winding (i) of H in a bridge circuit completed by change-over relay U. This winding is energized in aiding and opposing relationship to winding (ii) on successive operations of A depending on the position of the cam contacts and its contact 13h determines which of the motor windings is to be released.
Patent GB-617877-A (GB)
Title: Electrical vaporization of liquids
IPC: F22B1/30
Filed: 1945-09-21
Abstract: 617,877. Heating liquids by electricity. WATSON, G. W. Sept. 21, 1945, No. 24557. [Class 39 (iii)] A method of electrically vaporizing a liquid comprises dipping at least two electrodes slightly into the surface of the liquid, the electrodes being so spaced that liquid films are formed by capillary action between adjacent electrodes to which unlike potentials are applied. The electrodes each comprise a set of parallel, spaced plates 2 and 6 respectively, plates 2 being connected to bus bars 3 on a porcelain frame 1 and plates 6 to bars 8. The lower edges of plates 2 have points 9 which can lie in, or above, the level of the lower edges of plates 6. The electrodes just dip in the surface of the liquid, which rises as bubbles between them, and is instantaneously vaporized. Should the vapour presure exceed a certain value the surface of the liquid is depressed below the electrodes, and hence the circuit is interrupted until the pressure falls. The height of the vaporizing unit is capable of manual adjustment in the heating vessel. In a modification, the electrodes comprise concentric cylinders, alternate cylinders being connected to a common source of supply. Various cross sectional shapes, such as elliptical or polygonal, may be employed. '
Patent GB-996541-A (GB)
Title: Railway vacuum brake equipment
Inventor: MARSH GERALD CRANTON
IPC: B60T13/46
Filed: 1963-06-20
Abstract: 996,541. Vacuum brakes. GRESHAM & CRAVEN Ltd. June 1, 1964 [June 20, 1963], No. 24562/63. Heading F2F. Railway vacuum-brake equipment comprising a brake cylinder 1 having upper and lower chambers 2 and 3, a train pipe 4, an inshot chamber 6 with a timing port 7 and a valve 5 operable by a decrease in the vacuum in the train pipe to connect with the inshot chamber 6 and lower chamber 3 has a conduit 10 connecting the train pipe 4 to the upper chamber 2 which includes a normally closed manual valve 12 to permit said through connection when it is opened. When the train has been brought to rest by operation of the brakes, there will be a vacuum in the chamber 2, but atmosphere pressure in the train pipe and chamber 3 so that the piston will be in the upper part of the chamber 2. Operation of the valve 12 by the handle 13 will admit air to the chamber 2 and allow the piston to fall to release the brakes. Specification 940,879 is referred to.
Patent GB-1071015-A (GB)
Title: Improvements in etching of tantalum and columbium foils
IPC: H01G9/04
Filed: 1965-06-10
Abstract: In a method of etching tantalum and niobium foil wherein the foil is immersed in an electrolytic etching medium and a pulsating duty-current having an off-period between each pulse is passed to the surface of the foil to effect the desired etching thereo, the average current, ia, of the duty cycle is adjusted to effect the desired amount of etching of the foil per unit time, and the duty ratio ton:tsol and frequency of the pulsating current are adjusted such that the length of the "off" portion "tsol" of the total cycle period is at least equal to the time required for the product of the etching current to be dissolved by the etching medium.
Patent GB-754507-A (GB)
Title: Improvements in or relating to fluid coking process and feed apparatus therefor
IPC: B01J8/24
Filed: 1954-08-24
Abstract: <PICT:0754507/III/1> <PICT:0754507/III/2> Heavy residual oils are coked in a fluidized bed 24 of hot solid particles, the feed being preheated to slightly below cracking temperature and injected vertically in a number of continuous unatomized jets with a velocity above about 35 ft. per second. For obtaining motor fuels and gas oils from petroleum residue, the bed is preheated to 900 DEG -1200 DEG F. and substantially higher for olefins and aromatics.  Coke is withdrawn through a stripper 17 into which steam &c. is introduced, and part at least is reheated for return through a line 13.  One form of nozzle comprises a feed line 39 turned at right-angles near the outlet to project out of a wedge-shaped or tapered-end steam jacket 37.  The length of the transverse portion should be at least five times the bore diameter.  Another comprises a cylindrical body with an elliptical end portion centrally bored to form an extension of the feed line with a transverse bore to form the outlet.  The nozzles may project the feed slant-wise or horizontally provided it is not caused to impinge on the vessel walls.
Patent GB-351073-A (GB)
Title: Improved materials for use in the construction of roads, roofs, blocks or the like
IPC: C08K3/34
Filed: 1930-05-09
Abstract: A binder for use with aggregate for making roads, roofs, seawalls, &c., comprises an intimate mixture of tar or tar-like material, a pitch containing coal dispersed therein as described in Specification 316,897, [Class 22, Cements &c.], and known under the registered Trade Mark "Metrofelt" and a slurry formed from clay and water with or without the addition of lime or chalk.  In an example, a binder comprises 45 parts of tar-like material, 15 parts of metrofelt pitch, 3 parts of slaked lime or chalk, 15 parts of powdered clay, and 22 parts of water.  The tar and metrofelt pitch are mixed, a slurry is formed from clay, lime or chalk, and water, and the two are mixed, to form a paste.ALSO:A binder for use with aggregate for making roads, roofs, seawalls, &c., comprises an intimate mixture of tar or tar-like material, a pitch containing coal dispersed therein as described in Specification 316,897, [Class 22, Cements &c.], and known under the registered trade mark "Metrofelt," and a slurry formed from clay and water with or without the addition of lime or chalk.  In an example, a binder comprises 45 parts of tar-like material, 15 parts of metrofelt pitch, 3 parts of slaked lime or chalk, 15 parts of powdered clay, and 22 parts of water.  The tar and metrofelt pitch are mixed, a slurry is formed from clay, lime or chalk, and water, and the two are mixed to form a paste.  To form a road-making &c. composition 7-9 per cent of the binder is mixed with 93-91 per cent of aggregate.
Patent GB-707358-A (GB)
Title: Buried reservoir of pre-stressed concrete suitable in particular for storing hydro-carbons and its method of preparation
IPC: E04H7/20
Filed: 1952-10-02
Abstract: 707,358. Underground reservoirs. FREYSSINET, E. Oct. 2, 1952 [Oct. 4, 1951], No. 24720/52. Class 68(2) A buried reservoir comprises a prestressed concrete wall A of generally arcuate shape, convex upwards, and an annular concrete foundation 2, which may also be prestressed, earthlike. material E packed on top of the wall, and pressure exerting means between the foundation and the base perimeter of the wall acting in such direction as to raise the wall and shorten its base perimeter. The pressure means may be hollow inflatable jacks, or may comprise wedges. The floor B of the reservoir may be covered with concrete layers with bitumen packing. Specifications 589,019, 591,218; 592,430 and 657,738, [all in Group X], are referred to.
Patent GB-645050-A (GB)
Title: Improvements in and relating to densitometers
IPC: G01N21/25
Filed: 1948-09-22
Abstract: 645,050. Photo - electric densitometers. EVANS ELECTRO SELENIUM, Ltd., and COLLINS, G. C. Sept. 22, 1948, No. 24793. [Class 40 (iii)] The instrument pointer of a photo-electric densitometer whose readings are a logarithmic function of the density of the sample is kept well below a predetermined position of the scale by reduction of the light to the photocell by means situated between the source and the cell. Referring to Fig. 2, the sample under test is placed on a glass plate 1 recessed into a surface 7. Light from a source 12 is projected by a lens system 13 on to a mirror 14 which reflects it vertically through further lenses 15 and 11 which focus it on to a small aperture in a bush 9 below the glass plate 1, this bush forming a holder for the lens 11. The photocell 6, which is situated immediately above the aperture in the bush 9, is carried at the end of an arm 2 pivoted at 3 and has a rubber ring 4 mounted in the face which is brought in contact with the sample. To keep the pointer below a predetermined reading of the meter, say unity, a three-section filter 19, Fig. 3, is situated between lenses 15 and 11. The filter is mounted in a holder 23 and slides between guides 24 so that the appropriate section may intersect the light beam. The carrier is moved against the action of a spring 32 by a finger-knob (not shown) outside the casing, which also indicates by its position which filter is in the light beam and the quantity to be added to the meter reading. The knob moves the filter 19 longitudinally by rotation of a shaft 26, and a plate 28 attached to the shaft and longitudinal movement of a connecting rod 30. In the central position of the filter, plate 28 contacts a stop 35 and the fingerknob must be depressed so that the plate may pass below this stop if the densest section of the filter is to be inserted. Filter 19 may be replaced by an iris shutter having three predetermined positions. A uniformly varying optical wedge 22 carried in a pivoted plate 38 which extends through an aperture to the outside of the instrument is provided so that rotation of this plate zeroises the instrument. The lamp 12 is mounted in a plate which may be adjusted towards lens 13 by nuts 55 on screwed rods 51.
Patent GB-391666-A (GB)
Title: Improvements in convertible walking-canes or umbrellas
IPC: A45B5/00
Filed: 1932-09-06
Abstract: 391,666. Seat sticks ; tripod stands. SCHMITZ, H., 8, Thomashofstrasse, Aachen, Germany. Sept. 6, 1932, No. 24821. [Classes 52 (ii) and 52 (v).] A cane or umbrella convertible into a stool comprises a hollow upper stick portion a, a middle portion composed of three sectorshaped stays b<1>, b<2>, b<3> supporting the collapsable slat h, and a hollow lower portion c in which is accommodated the tripod legs of a camera stand. The seat h consists of a number of sheet - metal strips h<1> pivotally connected together and to a series of toggle links h<2>. The seat is secured to the stays b<2>, b<3> by necked connecting buttons h<4> engaging slots in the closed tops of the stays, and the top of the stay bl is open, so that, during the folding of the seat, the button h<4> can leave the slot and slide into the hollow upper portion of the stick, the toggle linkage h<2> simultaneously collapsing. The stays b<1>, b<2>, b<3> are pivoted on a conical member d<2> which is formed with a threaded pin, and a correspondingly shaped nut e at the top of the lower member c can be screwed thereon, to secure the seat either in the folded or in the extended position. The lower stick portion c, Fig. 10, contains tripod legs c<3> which are secured therein by a threaded portion c<2>, and they may be withdrawn, reversed and screwed into the bottom of the stick to form a camera stand. The handle a<1> is screwed on to a threaded pin a<2> on the upper end of the stick. A telescopic three-part case may be used to cover the middle portion f the cane.
Patent GB-917895-A (GB)
Title: A process for treating floor coverings and floor coverings obtained thereby
IPC: D06N7/00
Filed: 1960-07-18
Abstract: 917,895. Floor coverings. ANC. ETABLISMENT PEETERS, VAN HAUTE & DUYVER S.A. July 18, 1960 [June 9, 1960], No. 24904/60. Class 140. Floor covering is produced by coating the reverse side, i.e. the side opposite to the wearing surface and normally in contact with the floor, of a floor covering 1 having a support 2 provided at one side with hairs which form said wearing surface, with a layer 3 of a mixture of thermohardening resinous substances, e.g. a mixture of polyvinyl chloride and plasticizing substances, heating the coated side at 6 and finally calendering between calenders 7, 8 to impart to said layer an alveolate aspect. The alveoles may have a depth which is smaller than the thickness of said layer, and which may be diamond shaped in order to provide a good adherence in all directions. Specification 827,483 is referred to.
Patent GB-746463-A (GB)
Title: Bearings for rotating systems in precision mechanisms
IPC: F16C33/18
Filed: 1954-08-27
Abstract: 746,463. Plain bearings. STEIDINGER, S., and STEIDINGER, O., [trading as STEIDINGER KOMM.-GES., GEB.]. Aug. 27, 1954 [Sept. 2, 1953], No. 24978/54. Class 12 (1). In a plain bearing assembly, one of the surfaces comprises a velvet lining having radiallydirected fibres. A rotating disc 1, mounted on a fixed pin 2, has its bore covered with a layer of radially directed fibres 3. Synthetic fibres, for example nylon fibres, are especially suitable.
Patent GB-361411-A (GB)
Title: Improvement in methods of cleansing refuse bins
IPC: B08B9/08
Filed: 1930-08-21
Abstract: 361,411. Cleaning refuse bins. DREWRY, J. S., Kingston, Willian Way, and SHELVOKE & DREWRY, Ltd., Icknield Way, both in Letchworth, Hertfordshire. Aug. 21, 1930, No. 24989. [Class 138 (i).] Refuse bins are cleaned by inverting them and subjecting them to the action of jets of water, steam, or air, or a combination of any of such media. As shown, a cleansing box a, which may be of concrete, supports a platform b on which the bins are placed, and clamped in position. Thereupon the platform is inverted and a jet f enters each bin. The jets are supplied with water from wells e connected up to a supply tank h. A steam supply valve i is connected up to a conduit d. The arrangement is such that water is first supplied by the tank to the wells e, the valve i is operated to let in steam and water is forced up the jets into the bins. When the water is exhausted, steam passes into the jets. When the valve is closed, the steam condenses and water is again supplied to the wells. The steam may be replaced by air. Specification 342,490, [Group XXX], is referred to.
Patent GB-899777-A (GB)
Title: Improvements in or relating to pharmacological benzylamine compounds and the manufacture thereof
IPC: A01N33/10
Filed: 1960-07-18
Abstract: The invention comprises compounds of the general formula <FORM:0899777/IV (b)/1> (wherein R1 and R3 are hydrogen or alkyl containing from 1 to 3 carbon atoms inclusive, R2 represents alkyl containing from 1 to 3 carbon atoms, the total number of carbon atoms in R1, R2 and R3 being not greater than 6), togethe with their pharmaceutically acceptable salts and their preparation by selectively reducing the corresponding p-allyloxy-benzamide with lithium aluminium hydride.  The p-allyloxybenzamides are themselves prepared (a) by etherification of the corresponding p-hydroxybenzamides, which are in turn prepared by amidation of the R3-substituted p-hydroxybenzoic acids by formation of the acid halides and reaction with an amine HNR1R2; (b) by amidation of the corresponding p-allyloxybenzoic acids by formation of the acid halides and reaction with HNR1R2.  The p-allyloxybenzoic acids are formed by allylation of the R3-substituted p-hydroxybenzoic acids or their esters, followed by saponification of the ester group. 4-Hydroxy-3-propylbenzoic acid is prepared by catalytic hydrogenation of ethyl 4-hydroxy-3-allyl benzoate followed by saponification of the ester.  Specification 258,887 and U.S.A. Specifications 1,915,334, 2,075,359, 2,425,320 and 2,606,155 are referred to.
Patent GB-687469-A (GB)
Title: Circuit arrangement generating sawtooth current waves
IPC: H01J29/76
Filed: 1951-10-26
Abstract: 687,469. Saw-tooth generating circuits. STANDARD TELEPHONES & CABLES, Ltd. Oct. 26, 1951 [Nov. 11, 1950], No. 25096/51. Class 40 (vi). A circuit producing a saw-tooth voltage which is negative with respect to earth is D.C. coupled to the grid of an amplifier valve having its cathode earthed and producing a saw-tooth current in its anode circuit, the D.C. coupling including a potentiometer arranged to alter the average output potential fed to the grid of the amplifier without substantially altering the saw-tooth amplitude. The usual cathode biasing components for the amplifier may thus be dispensed with. In the circuit shown the sawtooth voltage derived from the grid capacitor of a blocking oscillator 4 is fed to the grid of the amplifier 3 through a capacitor 8 and the D.C. bias for the amplifier is derived from a potentiometer 12 across the capacitor. The components 8, 12 and 15 may, however, be omitted and the grid connected either to a tap on resistor 7 or to a tap on a potentiometer connected across this resistor, Figs. 2 and 3 (not shown). In the latter case adjustment of the frequency control 7 does not alter the bias voltage.
Patent GB-907375-A (GB)
Title: Diamond lined tool for trueing grinding wheels
IPC: B24B53/14
Filed: 1961-07-11
Abstract: 907,375. Trueing grinding wheels. FENNOCHIO, F., and MAZZA, G. July 11, 1961, No. 25135/61. Class 60. A tool for trueing grinding wheels comprises a drum 3 having set in its cylindrical surface diamonds 4 substantially uniformly distributed thereover. A screw 5 extends through a bore in the drum into a tapped hole in a support 1 provided with a cylindrical shank 2. The screw has a milled head 5a with a hexagonal recess 5b for insertion of a spanner. A washer 6 is interposed between the head 5a and the adjacent face of the drum. The drum is normally clamped by the screw 5 against the flat face 1 on the support 1; when the diamonds in use are worn, the screw is loosened, the drum rotated slightly and the screw again tightened.
Patent GB-518583-A (GB)
Title: Improvements in or relating to arrangements for controlling the flow of fluids or liquids
IPC: F16K31/53
Filed: 1938-08-26
Abstract: 518,583. Valves. BRITISH JEFFREY-DIAMOND, Ltd., and SAVILLE, A. Y. Aug. 26, 1938. No. 25139. [Class 135] [Also in Group XXIV] A pressure gauge 29 located in the handwheel 20 of a valve for controlling a compressed air supply communicates with the outlet side of the valve by way of the passages 30, 28. The valve body 10 is operated through bevel gearing 15. Oil may be supplied to the gearing through an aperture fitted with a plug 27.
Patent GB-321490-A (GB)
Title: Improvements in or relating to circuits comprising thermionic valves
IPC: G05F1/52
Filed: 1928-09-01
Abstract: 321,490. General Electric Co., Ltd., and Westell, E. P. L. Sept. 1, 1928. Thermionic amplifiers.-Variations in the anode voltage applied to a valve are compensated by varying the grid bias which is supplied by a resistance 19 the potential across which is dependant on the relation of the anode voltage 10 to that of a constant battery 27. The Figure shows an anode-bend rectifier 8 operating a relay 1 operated at the dialling speed of a machine switch. The voltage difference between batteries 10, 27 is applied to the grid of an auxiliary valve 23 in the anode circuit of which is the resistance 19.