baber/WOPTO huggingface dataset:
Patent GB-1506161-A (GB)
Title: Method and apparatus for separating gases
IPC: C01B23/00
Filed: 1974-03-12
Abstract: 1506161 Separation of gases PETROCARBON DEVELOPMENTS Ltd 6 March 1975 [12 March 1974] 11000/74 Addition to 1444231 Heading B1L In modifications 'of the pressure swing adsorption process of Parent Specification, the step of regenerating the adsorbent in the removed zone is effected by evacuation of said removed zone and/or the gas initially exiting from said removed zone during depressurisation is recycled to the inlet of the separation section, said recycle being continued until not later than the occurrence of a rapid increase in concentration of adsorbable material in said exit gas. This point may be determined by direct measurement of the concentration or by measurement of the pressure of the exit gas, or a predetermined time interval may be used.
Patent GB-552293-A (GB)
Title: Improvements in or relating to fluid pressure responsive devices
IPC: G01L7/00
Filed: 1941-08-29
Abstract: 552,293. Diaphragm gauges. FERRANTI, Ltd., CLUDERAY, E. S., and DEAN, J. Aug. 29, 1941, No. 11027. [Class 106 (ii)] A fluid pressure respon sive device including twc or more flexible diaphragms at least one of which diaphragms has a stop associated therewith to reduce or annul the effect of that diaphragm over a part of the range of the whole device and at least two of which diaphragms differ in wave-formation from one another, provided that any stop associated with the last diaphragm is of the flexible type. The invention is applied to an altimeter of conventioiial design except for the capsule. In Fig. 6 (a) the diaphragms differ in amplitude, in (b) in wavelength, in (c) in wavelength and amplitude. Expansion of the lowest capsule in Fig. 2 is limited by an external stop 23, in Fig. 3 (a) by an internal stop 27. In Fig. 4 (b) the sensitivity of the upper capsule is reduced for the latter part of its expansion by a spring member 30, while in Fig. 5 (not shown), the spring 30 is combined with an internal stop. Reference is made to Specification 552,294.
Patent GB-789275-A (GB)
Title: Improvements in or relating to water separator
IPC: B01D45/06
Filed: 1956-04-11
Abstract: In a centrifugal separator (see Group II) moisture-laden gas is passed inwardly through a porous fibre glass cloth carried by a conical framework, and during the passage the moisture is condensed into droplets.
Patent GB-1178554-A (GB)
Title: Improvements in or relating to methods of Electrolytically Etching Metal Layers
Inventor: MANSBRIDGE DENNIS STANLEY
IPC: C25F3/02
Filed: 1967-03-09
Abstract: 1,178,554. Electrolytic etching and polishing. INTERNATIONAL BUSINESS MACHINES CORP. March 9, 1967, No.11047/67. Hdading C7B. A metal layer on an article is electrolytically etched or polished in an electrolyte which floats on a second liquid and the article is then passed into the second liquid where no etching or polishing occurs. The Figure illustrates uniform electrolytic removal of a Cr layer 5 from an article 7 using an aqueous electrolyte 3, comprising NaOH and Na 2 CO 3 , which floats on an inert liquid 2 such as trichlorethylene trichlorotrifluoroethane or glycerol. In operation, the article is connected as anode and a stainless steel electrode 4 is connected as cathode. The article 7 is then lowered into the electrolyte 3 at a uniform speed. When the whole of the article 7 has been lowered through the electrolyte 3 into the liquid 2 the power supply is switched off. The article is then removed, washed and dried. Removal of Cr from a SiO substrate in making a printed circuit is referred to.
Patent GB-854703-A (GB)
Title: Process for removing caffeine from coffee extracts
IPC: A23F5/22
Filed: 1957-04-04
Abstract: Caffeine is extracted from an aqueous coffee solution by adding a solvent to the solution at an elevated temperature in a high speed centrifuge, the duration of the period of contact being such that substantially only caffeine passes into solution, and the temperature being such that substantially no persistent emulsion of one phase in the other is formed.  The solvent may be dichloromethane, dichloroethylene or trichlorethylene.  The extraction is preferably carried out near, e.g. within 30 centigrade degrees of, the boiling point of the solvent.  An example is given using trichlorethylene.ALSO:Caffeine is extracted from an aqueous coffee solution by adding a solvent to the solution at an elevated temperature in a high speed centrifuge so that substantially only caffeine passes into solution and the temperature is such that substantially no persistent emulsion of one phase in the other is formed.  The solvent may be dichloromethane, dichloroethylene or trichloroethylene.  The extraction is preferably carried out near, e.g. within 30 DEG  C. of, the boiling point of the solvent.  An example is given using trichloroethylene.
Patent GB-768422-A (GB)
Title: Improvements in or relating to injector ignitor plugs for gas turbine engines
IPC: F02C7/264
Filed: 1955-04-18
Abstract: 768,422. Sparking plugs. GENERAL MOTORS CORPORATION. April 18, 1955 [April 30, 1954], No. 11080/55. Class 7 (4). [Also in Group XI] An igniter tor gas turbine engines comprises a bifurcated electrode 33 mounted co-axially in an insulator 29 sealed into a tubular shell 3 and a ring-shaped counter-electrode 38 secured to the lower part of the shell and adapted to store heat for igniting the fuel after the spark has been switched off. The insulator 29 is secured within the shell by crimping the upper edge of the shell over an upper shoulder 43 on the insulator so as to stress an annular steel C-spring 47 placed between a lower shoulder 45 on the insulator and a ledge 25 at the upper end of a frustoconical passage 21 in the shell. Compressed air is delivered through a metering and pressure reducing orifice 55 in a plate in an inlet in the shell to an annular passage formed between the shell, the insulator and the C- spring and passes through to bores in the shell opposite the air inlet to an annular chamber 66 formed by a flanged collar 59 seated on the frusto-conical passage 21 in the shell. Part of the air is discharged helically through apertures 67 in the collar 59 into the lower part of the shell to mix with atomized fuel discharged from a nozzle 79 located in a bore in the shell, and another part of the air is directed upwardly through apertures 69 in the collar 59 to pass over the inner surface of the C-spring, between the knurled top 61 of the collar 59 and the C-spring and downwardly through the annular passage 71 between the collar and the insulator tip 62.
Patent GB-438935-A (GB)
Title: Improvements in safety razors
IPC: B26B21/32
Filed: 1935-04-10
Abstract: 438,935. Safety razors. JENSEN, G. S., 410, Szechuen Road, Shanghai, China. April 10, 1935, No. 11109. Convention date, April 10, 1934. [Class 30] In razors of the type in which the end cap is pivoted to the upper end of a stem which is guided for axial and rotary movement with respect to the guard, a helical spring 35 is fitted at the bottom of the handle to project the stem and cap to the outer position, in which position the blade can be removed or replaced while the cap is turned to lie parallel with the stem. During the inward movement the stem turns through a right angle due to the engagement of a pin 18 with a cam slot 26, 27, 28, Fig. 4, in a tube 25 rotatable on the shank 19. The tube 25 has a lug 32 in engagement with a notch in an outer tube 30, so that these tubes rotate together. The reverse motion when a blade is to be removed is derived from the spring 35 when the tube 30 has been turned suitably. The cut may be regulated by a knob 31 screwed on the end of the shank 19. In a modified construction the outer tube is secured to the shank and the knob to the tube 25.
Patent GB-494099-A (GB)
Title: Improvements in or relating to telegraph systems
IPC: H04L27/233
Filed: 1937-04-19
Abstract: 494,099. Automatic control systems. STANDARD TELEPHONES & CABLES, Ltd., and TERRY, V. J. April 19, 1937, Nos. 11125 and 18437. [Class 38 (iv)] [Also in Group XL] Oscillation - frequency.-A local oscillator V5, V6 is synchronized with incoming carrier signals applied to the bridge B both when the oscillator is in phase with the received signals and also when the phase of the latter has been reversed. To this end a synchronizing current of double frequency is used. Current derived from the received signals through the transformer B is supplied to a frequency-doubling rectifier bridge RB which feeds a circuit L1, C1 tuned to double the carrier frequency and coupled to both grids of the oscillator V5, V6 in parallel.
Patent GB-1469494-A (GB)
Title: Cameras
IPC: G03B17/00
Filed: 1975-03-18
Abstract: 1469494 Cameras BALDA-WERKE PHOTOGRAPHISCHE GERATE UND KUNSTSTOFF GmbH & CO KG 18 March 1975 [26 Sept 1974] 11129/75 Heading G2A In a camera, two components are relatively adjustable, but held in an adjusted position. One component is made of metal, and the other is made of plastics material which shrinks on cooling to engage the metal component tightly. As shown in Figs. 1, 2, a part 1 of the camera is made of plastics and has a part 2 formed as a peg with a shank 2a and a head 2b. A metal collar 3 with an eccentric, bore is fitted over the peg 2 when hot, so that the parts fit tightly on cooling. This holds the parts in any position to which they are adjusted by means of a key (not shown) having a spigot engaging a hole 6 in the part 1 and teeth engaging teeth 4 formed on collar 3. The eccentric collar may engage and adjust a setting lever in a rangefinder mechanism. In Figs. 3, 4 (not shown) a metal pin (7) is moulded into the camera part 1 and has a screwdriver slot for adjustment. In Figs. 5, 6 (not shown) a metal segment (9) is mounted to pivot on a peg (2') and has an arcuate slot engaging a peg (10); the pegs engage the segment lightly. Sector teeth (4') are engageable by a key. Fig. 7 (not shown) shows a metal disc (11) with arcuate slots engaging pegs (10'). Figs. 8, 9 (not shown) show a focusing mechanism with a plastics lens mount (13) is held by a metal ring (12), which has inclined surfaces (12a) to adjust the distance between the assembly and the focal plane.
Patent GB-576769-A (GB)
Title: Improvements relating to welding of aluminium or aluminium alloys
IPC: B23K11/16
Filed: 1944-06-10
Abstract: 576,769. Welding aluminium window frames &c. WROUGHT LIGHT ALLOYS DEVELOPMENT ASSOCIATION, and WEST, E. G. June 10, 1944, No. 11136. [Classes 83 (ii) and 83 (iv)] In welding aluminium or its alloys, the parts are placed in guides, the oxidized surfaces to be welded are cut and oxide thus removed by a cutting tool and immediately resistance buttwelded without removal from the guides and before the surfaces again oxidize. In resistance .welding mitred joints in casement window frames &c., the sections 1 are secured in clamps 3 with electrode heads 2 with their rear ends against adjustable stops 5 carried by guide members 4 parallel to the sections. A milling cutter 7 or broach mounted on a slide is then traversed to cut away the metal from each mitred surface, whereupon after disengaging the tool, the electrodes are advanced to weld the surfaces together. If desired, the sections may be slidable within the clamps to effect the weld, the electrodes being disposed in a stationary position near to the surfaces to be welded. The apparatus may include mechanism for adjusting the angle of the parts and may also be used to effect ordinary butt joints.
Patent GB-143016-A (GB)
Title: A portable heat reflector for gas and other fires
IPC: F24C15/22
Filed: 1919-05-05
Abstract: 143,016. Snell, C. Scott-. May 5, 1919. Reflectors.-A portable heat-reflector for gas and other stoves consists of a polished metal plate A supported by a U-shaped metal strip C which is pivoted at D to the ends of a support E. Two strips G, bent to circular arcs with D as centre, are riveted to the plate A and the strip C. To adjust the angularity of the plate A with the horizontal, the foot is placed on the horizontal bar connecting the ends of the support E, and the plate adjusted by hand, the frictional contact of the strips G with the ground retaining it in position.
Patent GB-410311-A (GB)
Title: Improvements in or relating to shoe uppers of canvas partly covered with rubber
IPC: A43B1/02
Filed: 1933-04-13
Abstract: 410,311. Boots &c. MAGYAR RUGGYANTAARUGYAR RESZVENYTARSASAG, 17, Kerepesi-ut, DOROGI, I., and DOROGI, L., 50, Budapest-Albertfalva, both in Budapest. April 13, 1933, No. 11198. Convention date, Jan. 31. [Class 17 (ii).] In the manufacture of shoe uppers of canvas partly covered with rubber, a piece of canvas from which the shoe upper is to be formed and an unvulcanized rubber sheet, preferably not cut out to the shape required, are placed flat one upon the other and inserted between an abutment surface and a pressing mould having blunt raised edge members which follow the contours of the free convas areas of the finished upper. The surfaces are pressed into contact under the application of heat so that the blunt edges close the pressing mould and the rubber, rendered plastic by the heat, is forced into the meshes of the fabric. As shown, applied to the manufacture of an upper of a sports shoe, having rubber-free parts h, i, j, Fig. 1, a sheet of un-vulcanized rubber 2 is placed on a mould plate 9 shaped as in Fig. 2, and a sheet of canvas is placed over the rubber. A plane pressing plate is pressed on the rubber with a pressure of 35-40 kilogrammes per square centimetre of the tool surface, under a temperature of 30-40 C. The pressing mould comprises a plate 9 of the shape of the rubber covering with raised edge members 10, 11, 12, 13 surrounding the rim. Parts of the rim may serve as knives and may be grooved, as shown in Fig. 2, to produce fluted rims on the upper. Parts of the rim may be sunk where it is desired not to press on the upper, e.g. at the parts 14 to form strengthening ribs. Specification 397,283 is referred to.
Patent GB-1224746-A (GB)
Title: Powder feed hopper for capsule-forming machine
Inventor: MEHTA MAHARAJ KRISHEN
IPC: A61J3/07
Filed: 1968-03-07
Abstract: 1,224,746. Feeding powder. M. K. MEHTA. 25 Feb., 1969 [7 March, 1968], No. 11234/68. Heading B8S. Powder for incapsulation falls from hopper 6 down flexible tubes 7 into hopper 1 and is discharged therefrom in the chambers 9 (not shown) of rotatory roll 5, the tubes 7 being engaged and agitated (as shown) by the frame 2 which carries scraper blades 4 and is reciprocated left to right by cam 3. The discharge of powder from hopper 6 down tubes 7 may be controlled by a rotary valve (not shown).
Patent GB-823515-A (GB)
Title: Improvements in or relating to the production of terephthalic acid esters
IPC: C08J11/00
Filed: 1958-04-09
Abstract: The invention comprises a process for the recovery of dimethyl terephthalate ester from a polyester derived from terephthalic acid and a glycol, in which the polyester, preferably in a finely divided form, and terephthalic acid, particularly in the form of a crude oxidation product of methyl p-toluate and/or p-xylene, are heated under pressure with methanol.  The proportion by weight of the polyester to the terephthalic acid may be between 0.1 and 95% An example is given.  Specifications 727,989 and 809,730 are referred to.
Patent GB-196924-A (GB)
IPC: C08K5/09
Filed: 1923-04-25
Abstract: 196,924. Russell, W. F. April 26, 1922, [Convention date]. Vulcanizing-compositions.-The vulcanization of rubber mixture containing sulphur and a metallic oxide, such as zinc, lead, aluminium, or manganese oxide, is improved by the addition of certain substances which promote the dissolution of the oxide in the rubber. These substances are carboxylic or resin acids whose salts with the metallic oxide used are soluble in hot aromatic hydrocarbons, such as benzene or xylene, or in terpene hydrocarbons, such as pinene or dipentene, either alone or in the presence of organic bases, such as pyridene or piperidine. Examples of such acids are the monobasic saturated and unsaturated fatty acids, particularly the higher members such as lauric, palmitic, stearic, oleic, and linoleic acids; aryl derivatives of fatty acids, such as phenylacetic, phenylpropionic, and cinnamic acids; aromatic monobasic acids, such as benzoic and toluic acids; certain derivatives of aromatic monobasic acids, such as the alkoxybenzoic acids, e.g. anisic acid; and acid resinous substances, such as colophony, Burgundy pitch, and Venice turpentine. Derivatives of these acids such as their salts of zinc, ammonia, or organic bases or their double salts of zinc and ammonia or an organic base, may also be used, and if the zinc salts be employed the zinc oxide may be omitted from the mix. The action of the acids is usually enhanced by the presence of organic basic or base-generating substances, such as the usual accelerators, particularly urea. The substances may be added to the rubber either on the mill with the other compounding ingredients, or during the crÛpeing or sheeting operation, or they may be mixed with the latex before coagulation either in the free state or in the form of glycerides which are decomposed by enzymes in the latex. Specification 4263/14 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises the use of any substance which will promote the dissolution of the metallic oxide in the rubber. This subjectmatter does not appear in the Specification as accepted.
Patent GB-881541-A (GB)
Title: Improvements in electric decoding devices
IPC: G06F3/08
Filed: 1959-04-02
Abstract: 881,541. Electric table look-up devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 2, 1959 [April 2, 1958], No. 11256/59. Class 106 (1). In a table-look-up device for locating and reading a particular column from four record cards, Fig. 2, the cards being arranged on a drum for reading by star wheels as described in Specification 684,273, which is referred to, the four first columns of the record cards are given addresses 1 to 4, the four second columns addresses 5 to 8 and so on, and the address of the desired column is registered in a counter 20, Fig. 1. The drum holding the record cards is then caused to rotate and for each column of the record cards that it advances a pulse is emitted by an emitter 33 which causes a multivibrator 43 to apply pulses both to a ring of four triggers 46 to 49 and to the counter. When the ring has advanced through its four stages and returned to its normal condition with trigger 46 on, the multivibrator is stopped until the card drum advances a further column. Thus for each column advance of the card drum the multivibrator applies four pulses to the counter which is arranged either to step backwards or, if it has been previously complemented, to step forwards. This process continues until the counter either reaches zero or overflows whereupon the multivibrator is immediately stopped and further advance of the card drum is prevented. The particular stage of the trigger ring then on indicates in which of the four record cards the desired column lies and via a thyratron energizes one of four relays 59 to 62 which permits the desired column to be read. The particular punchings shown in Fig. 2 are for when the device is recoding numbers by an arbitrary correspondence into further numbers coded in a binary coded decimal form.
Patent GB-175922-A (GB)
Title: Improvements in or relating to screw propellers and the like
IPC: B63H1/16
Filed: 1921-04-19
Abstract: 175,922. Gill, J. H. W. April 19, 1921. Screw propellers.-The blades of a screw propeller are attached to a nozzle-shaped casing and a second coaxial propeller is provided within the casing which may rotate in the same or opposite direction or be stationary. The blades may be perpendicular or inclined to the shaft, the blades of one propeller being parallel to but displaced radially with respect to the other. The pitch preferably increases from the leading to the trailing edge. When rotating in the same direction, the two sets of blades B, C, Fig. 1, are attached to a common shaft A, the blades B being attached to a nozzle-shaped casing D and disposed alternately round the shaft with respect to the blades C. When oppositely rotating sets are used, two bosses A<1>, Fig. 2, are attached to coaxial solid and hollow shafts E, E<1> and carry blades B, C of opposite pitch.
Patent GB-217008-A (GB)
Title: Improvements in or relating to bedstead corner and like joints or connexions
IPC: F16B12/58
Filed: 1923-04-27
Abstract: 217,008. New Garter Foundry Co., Ltd., and Cartwright, T. A. April 27, 1923. Connections for bedstead frames. An oblong member of T section attached to the bed post coacts with a slotted plate, carried by the side rail, having a pivoted locking link to engage the oblong member. In the form shown the part a<1>, a<2> projects from an attachment plate a which may have a lateral flange a<1> to support the end rail c<1>. The coacting member b consists of a horizontal portion bearing the side rail c and a slotted vertical portion b<2> engaging the T-member and held in place by the pivoted latch d. The upper portion of the web of the T-member is removed as at a<4> and the horizontal edge as rounded to form a seating for a correspondingly shaped portion at the upper end of the slot on the coacting member. As an alternative arrangement a flange for the transverse or end rail may be embodied with the slotted portion of the connection.
Patent GB-237999-A (GB)
Title: Improvements relating to pressure reducing valves
IPC: G05D16/06
Filed: 1924-05-08
Abstract: 237,999. Lissa, O. L. de, and Freezone, Ltd. May 8, 1924. Pressure-regulating vadves; materials, special. -A diaphragm-actuated pressure-reducing valve has the diaphragm constructed of mica. The diaphragm 1 is clamped between two parts of the casing, a rubber ring 4 being inserted to make a tight joint and is adjustably loaded by a spring 12 bearing against a large bearing plate 11. The valve member is acted on by a spring 7 to press a tail-piece 6 against a plate 9 so that the central part of the diaphragm is held between the plates 9, 11. The plate 9 is held in position and the stroke of the diaphragm limited by lugs 10,
Patent GB-114879-A (GB)
IPC: C11D13/26
Abstract: 114,879. Young, De N. W. B. April 13, 1917. Soap bars &c.-Soap bars or the like are aged by subjecting them to the action of a stationary body of air heated to say 150-220‹ F. to form a jelly-like skin on the bars, and then fixing the skin by means of cold air. The treatment is effected by conveying the bars through a chamber 13 fitted with heating-coils 14, and afterwards through a cooling-chamber b. A preliminary modification of the surface of the bars is effected in a chamber a containing air to absorb the surface moisture. The conveyer consists of a chain of free swinging soap-holders 11, and is led with the soap bars by a conveyer 10. After treatment, the bars are discharged to a conveyer 15 by tipping the soap-holders 11, as by providing sprocket wheels 17 and guides 18 which cause the conveyer and its soap-holders to travel at an acute angle with the conveyer 15. Fingers 19 engage the soap bars and overturn them on to the conveyer 15.
Patent GB-480412-A (GB)
Title: Improvements in and relating to laminated driving belts
IPC: F16G5/16
Filed: 1937-04-22
Abstract: 480,412. Driving - belts. WHITTLE, O. L. April 22, 1937, No. 11491. [Class 80 (i)] In a laminated belt comprising links 6 of leather, fabric, or other material arranged step-wise, each link is slit along the middle at 7, and the slit is widened at intervals at 8, the links being held together by flat-sided pivot-pins 10 passing through the slots 8, so that the links, while held against tension, can slide over one another to take up a compressive movement. In the form shown, the links are tapered and form a V-belt. The pivot pins 10 have cross-bars 9 resting on the outer and inner links.