baber/WOPTO huggingface dataset:
Patent GB-900305-A (GB)
Title: Improvements in or relating to resuscitation devices
IPC: A61M16/00
Filed: 1959-08-07
Abstract: 900,305. Respiratory appliances. SAFAR, P., and McMAHON, M. C. Aug. 7, 1959 [Aug. 8, 1958], No. 27156/59. Class 81 (2). A mouth to mouth resuscitator comprises a tubular member 11 having ends 12 and 13 curved in opposite directions, at least one of the ends being adapted to be inserted in a patient's  mouth, and a flange 15 between the ends, the distance between the tip 18 of the end 12 to be inserted in the patient's mouth and the flange 15 being approximately the linear distance from the patient's lips to the base of his tongue, i.e. about four inches. As shown, Fig. 1, a reinforced straight section 14 carries the flange 15 which receives or is integral with a mouth mask 17, formed of flexible material such as polyethylene or rubber. The shorter end 13 may be inserted in the mouth of a child patient, the mask being removed and reversed or, preferably, inverted in situ. Examples of materials from which the tubular member 11 may be formed are stainless steel, hard rubber, and polyethylene.
Patent GB-1270387-A (GB)
Title: Improvements in and relating to ultrasonic apparatus for the inspection of welds
Inventor: GIBSON REAY
IPC: G01N29/265
Filed: 1968-06-07
Abstract: 1,270,387. Ultrasonic inspection devices. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. 30 May, 1969 [7 June, 1968], No. 27194/68. Heading H4D. [Also in Division F1] Ultrasonic apparatus for the inspection of the weld between a heat-exchanger tube 2 and tubeplate 3 comprises an expandable plug la, 1b, forming a fluid-tight seal with the inner wall of tube 2, a housing 5 sealed at 9 to the tube plate 3 to define with space 4 a chamber for containing an acoustic coupling liquid, a transmitting/receiving transducer 10 and an adjustable mirror 12 for directing ultrasonic waves from the transducer to the weld, the transducer and mirror being mounted on a common driving shaft 41 capable of rotational and longitudinal movement. In use, plug la, 1b is expanded to fit the tube bore by actuating pneumatic ram 18 to retract rod 16 through coaxial sleeve 15 and so compress the plug axially between discs 15a, 16a; housing 5 is then pressed against plate 3 by turning nut 6. The transducer and mirror orientations are set up at 11, 13 so that the ultrasonic beam is normal to the tube wall at the weld zone. Shaft 14 is rotated back and forth by a pinion 23 meshing with a linear rack which is reciprocated by a pneumatic control system (see Division F1). A cam on the rack drives a cam-follower and pawl for engaging a circular ratchet to index shaft 14 longitudinally between each rotation. Echo pulses from the weld region are fed to conventional ultrasonic flow detectors for display against a time scale: good welds produce little ultrasonic reflection at the tube/tube-plate interface.
Patent GB-271329-A (GB)
Title: New jelutong product and method of making the same
IPC: B29D23/24
Filed: 1926-10-30
Abstract: 271,329. Yates, S. S. June 19, 1926, [Convention date]. Latex, coagulating.- Jelutong latex is coagulated in the known manner and then dried until the product contains less than 5 per cent moisture. The coagulated product may be sheeted or crÛped before drying. Specification 245,405 is referred. to.
Patent GB-635827-A (GB)
Title: Dehydrogenation of alkyl aromatic compounds
IPC: C07C5/32
Filed: 1946-09-12
Abstract: Alkyl aromatic compounds are dehydrogenated by vaporization, mixing the vapours with steam and passing the mixture through a catalyst of a major portion of bauxite and a minor portion of an alkali metal oxide or carbonate.  The reaction temperature lies between 500 DEG and 700 DEG  C. and pressure is atmospheric, and contact time between vapour mixture and catalyst is 0.5 second. The process is particularly applicable to the dehydrogenation of ethylbenzene to styrene and ethyl naphthalene to vinyl naphthalene.ALSO:Ethylbenzene is dehydrogenated to styrene and ethyl naphthalene to vinyl naphthalene by passing their vapours mixed with steam over a catalyst of a major part of bauxite and a minor part of an alkali metal oxide or carbonate at 500-700 DEG  C.  Ratio of steam to organic compound is 10 to 1.
Patent GB-842599-A (GB)
Title: Improvements in or relating to woven venetian blind ladder webbing
Inventor: STEPHENSON MATTHIAS
IPC: D03D1/08
Filed: 1955-09-27
Abstract: 842,599. Venetian blind ladder webbing. FRENCH & SONS Ltd., T. Sept. 27, 1956 [Sept. 27, 1955], No. 27450/55. Class 142(4). In weaving the binding-in portion of a ladder webbing, the warp threads of the cross straps are arranged in pairs with at least one body warp thread lying between the threads of each pair, the pairs of threads being so shed that the intervening body warp threads divide them during the weaving of the body weft. The cross strap warp threads are also shed in their pairs for weaving by the cross strap weft at least once intermediately between each two of a plurality of binding-in places. The webbing may be of synthetic filaments or fibres, the body of the webbing being a 2 x 2 twill and the cross straps being a double end plain weave. With only 22 picks per inch a light-weight, flexible webbing is obtained in which the cross straps are securely bound in. The shedding of the cross strap warps (Fig. 1) shows the lower binding-in from b<SP>1</SP> to a<SP>1</SP>, the cross over from a<SP>1</SP> to a, and the upper binding-in from a to b. From b to x is shown the cross strap woven with its weft C. The warp threads of one row of cross straps are indicated at 1, 2 and those of the other row are marked 3, 4. A film of plastic may be applied to the outer faces of main bands. Specifications 512,835 and 527,551 are referred to.
Patent GB-651209-A (GB)
Title: Improvements in reciprocating compressors
IPC: F04B7/04
Filed: 1947-10-14
Abstract: 651,209. Reciprocating compressors. CHABAY, M. R. A. Oct. 14, 1947, No. 27494. Convention date, March 12. [Class 8(i)] In a compressor having at least one cylinder 1, a piston 18 reciprocating therein, an open crankcase, inlet and outlet valve means 9, 10 and apertures 27 in the cylinder wall near the lower dead centre position of the piston and uncovered by the piston when it is at the bottom of its stroke, a gas inlet means is provided which is common to both the inlet valve means 9 and the apertures 27, the height of the latter being sufficiently relatively small to avoid back flow of the gas during the compressive stroke of the piston. The inlet and outlet valves 9, 10, housed in a member 8 fitted in the cylinder cover 4, are spring-loaded automatic type and each is additionally controlled by a tappet at the end of a rocking lever device 14 actuated by a cam (not shown) synchronized with the compressor crankshaft. The outlet valve stem 17 is bored to receive a spring 19 and a piston 20 a shoulder, 26 of which can contact a facing, in the member 8 and thereby resiliently brake the valve at the end of its opening stroke. In a modification the inlet valve is an automatic type annular plate valve controlling parts 'in a circular plate held coaxially between the cylinder and cylinder cover and the spring- loaded automatic outlet valve which may or may not be additionally controlled by a cam operated rocking device is arranged coaxially in the cylinder head. Specification 600,125 is referred to.
Patent GB-501616-A (GB)
Title: Improvements in or relating to the electrical precipitation of suspended particles from gases
IPC: B03C3/78
Filed: 1937-10-09
Abstract: 501,616. Hydraulic turbines. ENGLISH ELECTRIC CO., Ltd., and SEEWER, P. W. Oct. 4, 1937, No. 26836. [Class 110 (iiil] The swivelling regulating vanes of a hydraulic turbine are actuated by one or more servomotors mounted on the turbine casing adjacent to the vane spindles and linked to the levers of these spindles without the interposition of a separate operating ring. In the form shown, the servomotor comprises an oscillatable cylinder 2, 2a, 2b, the ends of the segments of which are closed by discs 5, and fixed pistons 1. Servomotor actuating fluid is admitted to the working spaces through one or other of the columns 3a, 3b in the pistons 1. Opposite pairs of working spaces may be used for emergency &c. use. The links 8 may be designed as breaking members to fracture on excessive load.
Patent GB-381328-A (GB)
Title: Improvements in drawer guides
IPC: A47B88/12
Filed: 1931-10-03
Abstract: 381,328. Furniture drawers. EUSTIS R. I., 457, North Fremont Place, NELSON, M., 461, North Fremont Place, and WEISS, (nee FLEISCHAKER), I., 839, Boston Street, both in Los Angeles, U.S.A. Oct. 3, 1931, No. 27527. [Class 52 (i).] The lower edges of a drawer slide with limited movement upon the horizontal flanges 25 of L-shaped supports 29 which themselves can slide within limits in guides 16, 18 on brackets 13 secured to the furniture framing. On opening the drawer it moves outward on the supports 29 until stops 35 on the drawer contact with lugs 37 on the supports which then move outward with the drawer until stops 38<1> contact with the brackets 13. The drawer and the supports can be removed in turn by tilting them upwardly.
Patent GB-762875-A (GB)
Title: Improved means for automatically regulating gas turbines
Inventor: LAMY JACQUES
IPC: F02C9/28
Filed: 1953-10-07
Abstract: 762,875. Automatic speed control systems. FRANCAIS, ETAT. Oct. 7, 1953 [Oct. 7, 1952], No. 27603/53. Class 38 (4). In a system for automatically regulating a gas turbine, the D.C. output of an amplidyne controls the delivery of fuel to the turbine and the energization of the amplidyne control windings is derived from a tachometer generator and controlled by other factors required to influence the regulation. In Fig. 2 the speed of a jet turbine is automatically controlled by a D.C. tachometer generator 10 which controls the excitation of a field winding B1 of an amplidyne generator 14 energizing a solenoid-operated valve 15 controlling the supply of fuel to the turbine. The desired speed is set by a manually-operated potentiometer 18 which controls the excitation of a field winding B2 of the amplidyne and is supplied with a constant voltage derived from the tachometer generator by a neon 16. Automatic variation of speed as a function of temperature is produced by a resistor 8 responsive to compressor intake temperature. A transient effect is produced by a condenser 19 which controls the excitation of field winding B3 of the amplidyne in accordance with turbine acceleration. This effect is automatically varied as a function of the difference between compressor intake and outlet pressures by causing the latter difference to vary a resistor 20.
Patent GB-1274597-A (GB)
Title: Improved vehicle transmission
Inventor: CROOKS JAMES WEBSTER
IPC: F16H3/66
Filed: 1970-06-08
Abstract: 1,274,597. Variable speed gears. ALLISCHALMERS MFG. CO. 8 June, 1970 [11 June, 1969], No. 27612/70. Heading F2D. A variable ratio transmission comprises two planar planetary gear trains 65, 75, two rotatable casings 12, 37 each with a gear 17, 36 connected to a countershaft gear-set 26, 27, 35, and with clutches 20, 30, 40 or 50, 60, 70 selectively operable to connect the casing with an element of the train 65 or 75, the input shaft 4 mounting the sun gear 110 of one train 65 of which the planet carrier 84 is fixed to the other sun gear 117 on the output shaft, the casing 12 associated with the train 65 having a brake 10, selective operation of two of the clutches or one of the clutches and the brake 10 providing different transmission ratios (e.g. as in Fig. 3). The clutches and brake may be supplied with liquid via a manual control 133. Engagement of the clutch 70 and the brake 10, brakes the output shaft 47 (e.g. a quill shaft) and leaves the input shaft free to rotate (e.g. to drive a power-take off at the output end of an extension of the shaft 4 through the quill shaft 47).
Patent GB-519431-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/22
Filed: 1938-09-22
Abstract: 519,431. Fluid - pressure shock - absorbers. OLAER PATENT CO. Sept. 22, 1938. No. 27627. Convention date, Oct. 11, 1937. [Class 108 (iii)] In a shock-absorber or like device fluid from a cylinder 2 is forced by a piston 1 past a valve 3 into a chamber 7. The valve 3 is housed in a chamber 6 which is not connected to the chambers 2, 7 so that the load on the valve is substantially constant. The valve may also be loaded by a spring 5. The chambers 2, 7 may communicate with one another by an adjustable, or valve controlled or other bye-pass 8 through which the liquid returns to the chamber 2.
Patent GB-1387298-A (GB)
Title: Process of preparing filaments from synthetic thermoplastic and  products made from such filaments
IPC: D01F6/44
Filed: 1972-06-13
Abstract: 1387298 Film fibrillation STAMICARBON NV 13 June 1972 [16 June 1971] 27655/72 Heading B5B [Also in Divisions C3 and D1] Filaments are made by extruding a melt of a thermoplastic polymer mixed with a foaming agent, and a nucleating agent, the said nucleating agent having a solidification point higher than that of the said thermoplastic polymer but below the decomposition temperature of the polymer, extruding the mixture to provide a foamed film, and stretching and fibrillating the said foamed film to provide filaments thereof. When the temperature of the polymer melt drops below the solidification point of the nucleating agent, a solid phase of the nucleating agent becomes finely divided in the melt, and the fine solid particles so formed serve as nuclei in the formation of the cells in the foam by the gas released from the foaming agent on extrusion of the melt mixture. Hence a foam is obtained having a large number of very small cells of uniform size uniformly distributed. The nucleating agent may be a microcrystalline wax, incorporated in the polymer melt in a proportion of from 0À5 to 5À0% by weight of the polymer. In the example, a stretched strip so made is fibrillated and cut to yarns 1À5 mm. wide, having a titre of 17 tex, a tensile strength of 18 g./tex and an elongation at rupture of 5%. The yarns may be twisted at 100 r.p.m. and knitted to a hose. Knitted products so made show very low specific density, high heat-insulating capacity and a soft feel, and are useful in clothing, as a wool substitute, in making curtains, and as a shrink-effect component in carpet yarns.
Patent GB-748975-A (GB)
Title: Improvements in or relating to bisnorcholane derivatives
Inventor: GREEN JOSEPH
IPC: C07J75/00
Filed: 1953-10-08
Abstract: The invention comprises bisnorcholan-22-als of the formula <FORM:0748975/IV(a)/1> where A is oxygen or -OCH2CH2O- or -O.CH2.CH2.CH2.O-, and a process for the preparation of the above aldehydes, the corresponding 22-carboxylic acids and esters thereof, which comprises ozonizing coproergosten-22-one-3, or its 3-ethylene or propylene ketal derivative, in the range -75 DEG  to +20 DEG  C., and decomposing the resulting ozonide to the aldehyde or to carboxylic acid which can then be esterified.  The acids and esters are also obtainable by subsequent oxidation of the aldehydes, e.g. with chromic acid, potassium permanganate, hydrogen peroxide in acetic acid, alkaline silver oxide, or air or oxygen in the presence of manganese salt. Ozonization at very low temperatures (below -40 DEG  C.) yields principally aldehydes, and in the range -40 DEG  to +20 DEG  C. acid production is favoured.  Specified solvents are chloroform, ethyl acetate, acetic acid, methylene chloride, chloroform-pyridine, ethyl acetate-methanol, ethyl acetate-acetic acid and ether-acetic acid.  The decomposition of the ozonides to produce (a) aldehydes is effected under reducing conditions, e.g. with zinc and acetic acid, or hydrogenolysis with a palladium catalyst or Raney nickel; and (b) acids the above methods or oxidative methods, e.g. with alkaline silver oxide, or hydrogen peroxide in acetic acid.  In examples coproergost-22-en-3-one is ozonized in chloroform at -70 DEG  C. and the ozonide decomposed with zinc and acetic acid to bisnorcholan-22-al-3-one.  (2) As in (1), ozonizing at 0 DEG  C., when 3-keto-bisnorcholanic acid is obtained by extraction with alkali, and a further quantity by subsequent oxidation of the alkali-insoluble portion with potassium permanganate in acetone. (3) 3-Ethylenedioxycoproergost - 22 - ene is ozonized at 0 DEG  C. and the 3-ethylenedioxybisnorcholanic acid obtained esterified with ethereal diazomethane to the methyl ester.
Patent GB-918296-A (GB)
Title: Packaging containers
IPC: B65D30/08
Filed: 1959-08-14
Abstract: 918,296. Packaging; paper &c. bags. KUNSTSTOFFWERK LAHR G.m.b.H. Aug. 14, 1959 [Sept. 4, 1958], No. 27890/59. Classes 94(1) and 94(2). Containers for substances such as pitch, high melting point paraffin &c., which are melted and poured into the container to solidify, are composed of or lined with polypropylene. The container can be stripped from the contents without difficulty. A bag may be lined with polypropylene film. In filling a bag, it may be placed in a rigid mould and its mouth retained open by a frame while the material is poured in, the bag being removed from the mould when the contents has cooled.
Patent GB-261029-A (GB)
Title: Improvements in the manufacture and production of condensation products of urea and formaldehyde
IPC: C08G12/12
Filed: 1926-11-06
Abstract: 261,029. I. G. Farbenindustrie Akt.- Ges. Nov. 7, 1925, [Convention date]. Urea-formaldehyde condensation products.-In the production of urea-formaldehyde condensation products, the urea and formaldehyde comprising the starting materials are replaced by dimethylolurea, and the condensation is effected in an organic solvent in the absence of water using an acid condensing agent. Dimethylol-urea is obtained by the action of formaldehyde on urea in alkaline or neutral aqueous solution at ordinary temperature. Organic solvents can then be employed which are less suitable when working with urea and formaldehyde, e.g. methyl or ethyl alcohol, and acetone. A phenol or a mixture of phenols may also be employed as solvent; the formaldehyde liberated during the reaction is fixed by the phenol, thereby permitting of the condensation being carried out directly in casting- moulds. It is advantageous to add resins, plasticizers, talcum, diatomaceous earth, plaster of Paris, or the like. According to the examples, (1) dimethylol-urea is dissolved in hot ethyl alonhol and condensation started by the addition of hydrochloric acid; when the reaction is complete, sodium acetate is added, the alcohol evaporated in vacuo, and the product heated for some time; a hard glass results; (2) dimethylolurea is dissolved in ethylene glycol monoethyl ether and condensed by adding hydrochloric acid; after neutralization with sodium bicarbonate a clear, colourless lacquer is obtained, which may be mixed with diluents or other lacquers. The Specification as open to inspection under Sect. 91 (3) (a) states also that, in place of dimethylol-urea, products of higher molecular weight resulting from the condensation of urea and formaldehyde with splitting off of water may be employed, as well as analogous compounds obtainable from other aldehydes and urea or its derivatives. This subject-matter does not appear in the Specification as accepted.
Patent GB-786365-A (GB)
Title: Improvements relating to suction cleaner filter bags
IPC: A47L9/14
Filed: 1955-09-30
Abstract: 786,365. Suction cleaner filter bags. HOOVER, Ltd. Sept. 30, 1955 [Oct. 13, 1954], No. 27954/55. Classes 8(1) and 8(2). The air inlet opening 36, Fig. 4, in a generally flat wall 31 of a suction cleaner filter bag 10 is surrounded by an area of adhesive 38 of the pressure sensitive type whereby a cover strip 44 may be detachably secured over said opening 36. On opening a pivoted end cap 17, Fig. 1, of a cylindrical casing 11 and introducing a fresh bag 10 which may be of paper through an aperture 16, the margin 33 of the wall 31 of relatively stiff material abuts an annular casing flange 15 with the peeled off portion of the strip 44 assuming the position 48. On closing the end cap 17 housing inner and outer walls 19, 20 connected by a socket 24, a socket extension 22 projects through the bag inlet 36 and a sealing ring 47 carried by the inner cap wall 19 abuts the tacky surface provided by the adhesive covered area 38.
Patent GB-408602-A (GB)
Title: Improvements in and connected with economisers, or feed water heaters and like apparatus
IPC: F22D1/14
Filed: 1932-10-07
Abstract: 408,602. Heating feedwater. ELEKTRIZITATS AKT. - GES. VORM. W. LAHMEYER & CO., 48, Guiollettstrasse, Frankfort-on-Main, Germany. Oct. 7, 1932, No. 28031. Convention date, Oct. 7, 1931. [Class 64 (i).] A steam separator vessel arranged between an economizer or like apparatus and a steam generator has a member which opens or closes two or more passages to regulate the interchange of steam between boiler and economizer and the water supply to the economizer in dependence on the water level in the vessel. The water supply may be from the feed line, the boiler, or another container at higher pressure. A regulating member comprises a piston q with openings rand w adapted to register with ports y and z in the piston bush x to regulate respectively the flow of water and steam by means of liquid displacement bodies g, g<1>, lever t and rod s. The respective specific weights, dimensions and arrangement of the bodies are preferably such that both are submerged together at a certain level and emerge simultaneously when the level falls. Should steam collect in the vessel owing, for example, to interruption of boiler feed, the water level falls and piston q rises to open successively the steam and water passages, allowing steam to pass to the boiler through connection 3<1> and enter to the economizer through connections 2<1>, 2. The steam passage is preferably first opened and last closed. A branch from the steam pipe between the vessel and the boiler may be provided with a non- return valve permitting steam to flow into the vessel on a fall in pressure due to leakage. The boss 20 of lever t is freely mounted on a spindle 21 which extends through the casing and may act as a releasing member actuated from outside through the agency of dogs &c. 22. Separate valve regulating members for the different passages may replace the common member shown. The Specification as open to inspection under Sect. 91 describes one of the displacement bodies as hollow and filled with water and the other body as solid. This subject-matter does not appear in the Specification as accepted.