baber/WOPTO huggingface dataset:
Patent GB-655880-A (GB)
Title: Improvements in and relating to high speed rotors
IPC: F01D5/02
Filed: 1948-02-26
Abstract: 655,880. Securing elements to shafts. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 26, 1948, No. 5842. Convention date, Dec. 14, 1945. [Class 80(ii)] A high speed rotor, such as the impeller of a centrifugal compressor 1, is secured to its shaft 3 by a friction fit of its bore on to a corresponding cylindrical part of its shaft and the engagement of an extension 18 with an annular shoulder 17 of a flange 15 of the shaft. The action of centrifugal force is greater on the righthand side of the impeller, owing to its greater mass and diameter, and produces a tightening of the extension 18 against the shoulder 17 and the left-hand end of the bore of the impeller on to the shaft. The impeller may be fitted on to a sleeve secured by keying to the shaft 3 and the shoulder 17 provided en this sleeve. Alternatively the shoulder 17 may be provided by a separate ring pressed on to an extension of the impeller and free from the shaft or sleeve. In this case the restraint thus imposed increases the grip of the opposite end of the bore on to the shaft only. Specifications 340,450 and 640,669 are referred to.
Patent GB-559452-A (GB)
Title: Resinous copolymers
IPC: C08F12/12
Filed: 1942-05-04
Abstract: 559,452. Resinous polymerization products. AMERICAN CYANAMID CO. May 4, 1942, No. 5979. Convention date, May 3, 1941. [Class 2 (iii)] p-Isopropenyl toluene and acrylonitrile are co-polymerized by heating, preferably in aqueous emulsion or dispersion. Part of the p-isopropenyl toluene may be replaced by isopropenyl benzene, an isopropenyl xylene, isopropenyl cyanide or isopropenyl amide. Polymerization may also be conducted in mass or in a solvent such as acetone, cyclohexanone, ethylene and propylene dichlorides, carbon tetrachloride or dichlorethyl ether. Emulsifying agents specified are diamyl, dihexyl or dioctyl sulphosuccinic esters and their salts, quaternary ammonium compounds, salts of alkylated naphthalene sulphonic acids, sulphonated or sulphated alcohols, e.g. lauryl sulphate or their salts, sulphonated castor oil, glycol oleate and linoleate, mineral oil sulphonates, aromatic sulphonates, wax acid soaps, triethanolamine oleate, monoglycerol linoleate, amino-sulphonates and sulphates, alkaline casein, soaps, lecithin, chloresterol and saponin. Suitable dispersing agents are polyvinyl alcohol, methyl cellulose, gum arabic, gelatine, cellulose hydroxy-ethyl ether, polymerized acrylic and hydroxy-acrylic acids and their amides. Catalysts such as benzoyl, benzoyl-acetyl and phthalyl peroxides, succinic acid, stearic acid, oleic acid and coconut oil acid peroxides, tert-butyl peroxide and ascaridole may be used. Plasticizers, e.g. dibenzyl ether, dibutyl phthalate, benzyl-phenyl-amino-acetonitrile, the α-naphthyl-methyl ester of naphthyl-α-hydroxyisobutyric acid, chlorinated rubber, ethyl lactate and tricresyl phosphate may be added. The co-polymers may be acylated by including acetic, propionic, butyric, lauric, crotonic, phthalic or succinic anhydrides in the reaction mixture. Other compounds, e.g. acrylic acid, methyl and butyl acrylates, styrene, methacrylic acid, methyl and butyl methacrylates, diethyl and diallyl and the glycol maleates, acrolein, methacrolein, methacrylonitrile, methyl isopropenyl ketone, maleic acid, itaconic acid and aconitic acid may be co-polymerized. Products from acrolein, and methacrolein may be alkylated. Dyes and fillers, e.g. wood flour, wood fibres, paper, clay, zein, glass wool, mica, granite dust, silk and cotton flock, steel wool, carborundum, cloth and sand may be added to the monomers or co-polymer. The products may be used for coating or impregnating fibrous materials, cast into tubes, rods or sheets and used for injection or compression moulding.
Patent GB-1299755-A (GB)
Title: Fastening device
Inventor: BRUMLIK GEORGE CHARLES
IPC: A44B18/00
Filed: 1970-02-07
Abstract: 1299755 Spiked plates G C BRUMLIK 7 Feb 1970 5980/70 Heading F2H [Also in Division E2] A fastening member (10), Fig. 1 (not shown), comprises a plurality of flexible fastening elements 62 secured at one end in an exposed surface 44, perpendicular to that surface, each element having an elongated body 46 with a central enlargement 52 and barbs 48, 50 at least at each end. Adhesion between the fastening member and a penetrable member is effected by element 62 penetrating the penetrable member. In other embodiments the central stop 52 may be omitted, the element has barbs only at its ends or the elongated body may comprise only one conical section (Fig. 7, not shown). The elements, which may have pre-stressed hooks 126<SP>1</SP>, Fig. 12, which uncurl to form barbs upon suitable chemical or heat treatment, may be formed by slicing a plastics extrusion. The elements may be mounted on a supporting surface directly or an adhesive layer thereon or projected through the supporting layer, using a jet of air.
Patent GB-373287-A (GB)
Title: Improvements in or relating to voice frequency alternating current signalling arrangements, particularly for use in telephone systems
IPC: H04Q1/446
Filed: 1931-02-26
Abstract: 373,287. Electric signalling systems. STANDARD TELEPHONES & CABLES, Ltd., SKILLMAN, T. S., THOMAS, P. R., and HODGSON, K. G., Columbia House, Aldwych, London. Feb. 26, 1931, No. 6028. [Class 40 (i).] In a system in which signals consist of impulses of combinations of currents of one or more different frequencies false operation of the voice-frequency relays is prevented in spite of the differences in the lengths of line employed either by arranging, as shown in Fig. 1, that only the frequency to which it is intended to respond reaches any particular relay or by providing automatic volume regulation of the input to the relays. The volume regulator may comprise a valve V3 shunted across the input to the signal amplifier V1 and having its impedance varied in accordance with the signal strength by variations in its grid potential brought about by amplifying and rectifying a portion of the output of the signal amplifier and using the resulting currents to give a positive bias to the valve V3. The valve V2 works on its bottom bend so that its output is approximately proportional to the square of its input. High-pass and low-pass filters HP, LP prevent instability and LP is designed so that the impedance of V3 is reduced quickly in response to signals and increases on their cessation slowly. In a modification, Fig. 3 (not shown), a portion of the incoming signals is rectified and controls the bias of the signal amplifying valve.
Patent GB-646518-A (GB)
Title: An improved thermal time-delay electric relay
IPC: H01H61/06
Filed: 1948-02-27
Abstract: 646,518. Thermal switches. GUARDIAN ELECTRIC MANUFACTURING CO. Feb. 27, 1948, No. 6041. Convention date, Nov. 22, 1939. [Class 38(v)] A time-delay relay comprises a pair of contact springs 21, 22 insulated by plates 23 and mounted on a lug 20, the finger 21 having an insulating button 26 engaged by the arm 33 of a bell-crank lever 32 pivoted at 30, whereby the spring 21 is urged against its resilience to engage the spring 22. Looped around the short arm 34 of the lever 32 is a resistance wire 37 anchored by its ends to terminal studs 38, 39 (the latter being adjustable) such that on expansion of the wire upon energization thereof, the lever 32 is freed and permits the spring 21 to move away from spring 22. The controlled circuit is shown as independent of that through the wire 37, but by utilizing a retractive snap-action switch the two may be in series, thereby providing a pulsating current.
Patent GB-397847-A (GB)
Title: Improvements in the purification and decolourisation of phenols and neutral oils
IPC: C07C37/86
Filed: 1932-02-29
Abstract: Phenols from low-temperature or vertical retort carbonization processes are purified so as to eliminate or prevent the formation of red colour, by heating with a small proportion of formaldehyde or substance yielding formaldehyde, and an acid or alkaline catalyst, and distilling.  Formalin, paraformaldehyde, trioxymethylene, methylal, and hexamethylenetetramine are specified substances yielding formaldehyde; caustic soda and concentrated hydrochloric acid are specified catalysts.  For example, 1 kg. of low-temperature tar acids is heated to 100 DEG  C. for 30 min. with 10 gm. of paraformaldehyde and 5 cc. of 2N-caustic soda, steam distilled, separated, and distilled.ALSO:Phenols and neutral tar oils from low temperature or vertical retort carbonization processes are purified so as to eliminate or to prevent the formation of red colour, by heating with a small proportion of formaldehyde, or substance yielding formaldehyde, and an acid or alkaline catalyst, and distilling.  Formalin, paraformaldehyde, trioxymethylene, methylal, and hexamethylene-tetramine are specified substances yielding formaldehyde.  In examples (1) 1 kg. of low temperature-tar neutral oil is heated to 100 DEG  C. for 10 min. with 10 gm. of paraformaldehyde and 10 cc. of conc. hydrochloric acid, then distilled in steam, separated and dried; (2) 1 kg. of low-temperature-tar acids is heated to 100 DEG  C. for 30 min. with 10 gm. of paraformaldehyde and 5 cc. 2N-caustic soda, steam distilled, separated and distilled.
Patent GB-223806-A (GB)
Title: Improvements in speed indicators of the eddy-current type
IPC: G01P3/495
Filed: 1924-03-10
Abstract: 223,806. Kieffer, N. J., and Osa Apparate-Ges. March 10, 1924. Magnetic speed indicators.-In an eddy-current speed indicator in which the rotating magnet system comprising a magnet f and an iron cover plate g encloses the armature i, the bearings o, q for the shaft k of the armature i and pointer l are arranged on the rotating system. The shaft b is arranged to rotate in bearings in the lower part of the casing. In this way the use of supporting bridge pieces is avoided. A stop pin n is provided to position the pointer l at zero.
Patent GB-849571-A (GB)
Title: Improvements in or relating to suspensions for vehicles
IPC: B60G11/58
Filed: 1958-02-26
Abstract: 849,571. Pneumatic springs. CONTINENTAL GUMMI-WERKE A.G. Feb. 26, 1958 [March 9, 1957], No. 6148/58. Class 108(2). A variable-rate pneumatic spring 9 acts in conjunction with a leaf spring 1. Pressure in the spring 9 is automatically adjusted so as to maintain constant the distance a between the vehicle axle 2 and its chassis frame 3.
Patent GB-850256-A (GB)
Title: A method of and apparatus for tightening a loop of wire surrounding an article
IPC: F16L33/02
Filed: 1959-02-23
Abstract: 850,256. Tensioning wires. WALTHER, C. K., [trading as WALTHER-TECHNIK C. K. W. [firm of]]. Feb. 23, 1959 [April 25, 1958], No. 6173/59. Class 45. [Also in Group XXII] A loop of wire 3 surrounding an article 1 is tightened by inserting each end 3<SP>1</SP> 3<SP>11</SP> of the loop into one of a pair of openings 6, 5 in a cap 4 so that the ends protrude from an aperture 7, by holding the protruding ends in a member 8, and by twisting the member so as to wind the ends about one another. The member has an edge 10 which notches the ends of the wires so that continued twisting of the member severs the extreme ends of the wires. In a modification, the cap is made of sheet metal.
Patent GB-1143921-A (GB)
Title: Method of washing and washing composition
IPC: D06F35/00
Filed: 1966-02-11
Abstract: 1,143,921. Cleansing agent. I/S ROSENKRANTZ & JORGENSEN. 11 Feb., 1966 [15 Feb., 1965], No. 6181/66. Heading C5D. A gas generating agent is added to the hot washing liquid used in washing clothes in a closed container to increase the pressure therein. The gas produced is preferably fairly insoluble in the washing solution. The gas may be produced by the evaporation of liquid boiling in the 20-40 C. range which may be insoluble in water so as to produce an additional dry cleaning effect. A detergent additive may be included which is soluble in the volatile liquid which may be chlorotrifluoromethane, b.p. 21 C. Detergent additives may be alkyl benzene sulfonate, adducts of ethylene oxide and phenol, fatty alcohols, fatty amines and fatty acids. The gas generating agent may be a mixture of equimolar amounts of sodium hydrogen carbonate and tartaric acid. Preferably, the washing composition is placed in a bag, e.g. of gelatine, which is destroyed during washing.
Patent GB-143196-A (GB)
Title: Improvements in the extraction of fatty matter from garbage and other fat-containing materials
IPC: C11B13/00
Filed: 1920-03-01
Abstract: Fats and fatty oils, extracting by solvents.  Prior to the extraction of fatty matter from garbage, slaughter-house refuse, &c. by means of volatile solvents, the material is subjected to sudden variations of pressure to break the cells after admission of the solvent at or above atmospheric pressure.  The pressure is raised and maintained until extraction has taken place and is again suddenly released.  The temperature is never allowed to rise above 50 DEG  C.  In an example, an extractor containing green garbage is exhausted by a pump to a pressure of 2 lb. per sq. in. absolute, which is raised suddenly to atmospheric by opening a relief valve.  The pump is again operated to raise the pressure to 60-100 lb. per sq. in. above atmospheric, and the pressure released suddenly.  A pressure of 20-30 lb. per sq. in. is again produced, the solvent led in, and after some time the pressure is raised to 60-100 lb. per sq. in. above atmospheric, maintained for a time depending upon the material treated, and suddenly released.  The solvent is drained off, and residual solvent removed to a condenser by steam or by heating if the extractor is jacketed.  In the Specification as open to inspection under Sect. 91 (3) (a), the invention is also described with reference to a diagram of the apparatus.  This subject-matter does not appear in the Specification as accepted.
Patent GB-402630-A (GB)
Title: Improvements in or relating to wheel-flange or rail lubricating devices for rail vehicles
IPC: B61K3/02
Filed: 1933-03-01
Abstract: 402,630. Lubricators. HEUSER, A., 21, Ehmannstrasse, Stuttgart, Germany. March 1, 1933, No. 6253. [Class 12 (iii).] A device for lubricating the wheel flanges of railway vehicles or the rails on which they travel is arranged to provide a supply of lubricant which is continuously effective during travelling but sufficient only for running on straight portions of the track and a supplementary supply of lubricant which becomes effective only on curves and upon the occurrence of severe rocking movements. Fig. 1 shows an installation diagram for a tender locomotive. A pump 2 containing a number of separately regulatable elements forces lubricant from a supply tank 1 through pipes 3 .... 6 continuously to the lubricating points 7, ... 10 associated with the wheel flanges or the rails. Two additional pump elements supply lubricant through pipes 11, 12 to a control device 13, controlled for instance by the displacement of the axles relative to the frame. Two methods of obtaining this adjustment are shown. According to the nature of the curve, the control device is automatically adjusted to supply lubricant through pipes 14, 17 or 15, 16 to the wheel flanges which are grinding. On straight stretches, lubricant is returned to the tank 1 through a return flow valve 18 and a pipe 18a. In Fig. 5, three similar pump elements 19, 20, 21 of which two 19, 20 are connected, are arranged by means of a control device to supply lubricant to the points 23, 24. The control device comprises a plug member 22 with vanes 36 operating in a casing 35 provided in its lateral wall with closed passages 42, 44 connecting respectively ports 41, 41a, and 43, 43a. In the position shown, the double quantity of lubricant from the elements 19, 20 and the single quantity from the element 21 are equally divided between the two outlets 38, 40. According to the nature of the curve entered, the plug 22 is automatically rotated to supply the double quantity to the point 23 and the single quantity to the point 24 or vice-versa. In a modification of the arrangement in Fig. 1, the pump 2 supplies through conduits, two lubrication points and a third conduit leads to a control device for the supplementary lubrication. Fig. 8 shows an arrangement in which a restricted supply of lubricant passes to two lubrication points on straight stretches of track, through a single conduit 29, and an increased supply to one of these points is automatically brought about by rotation of the control member 30 on entering a curve. In all the arrangements, the pump may be driven directly by the wheels or other moving part of the engine so as to supply equal amounts of lubricant over equal running distances independent of the speed of the vehicle, and the control member may be operated when desired by an auxiliary hand control.
Patent GB-737918-A (GB)
Title: Improvements in or relating to combine harvesting machines
IPC: A01F12/52
Filed: 1952-03-11
Abstract: 737,918. Combine harvesters. BRYANT, A. F. Feb. 23, 1953 [March 11, 1952], No. 6290/52. Class 58. A combine harvester comprises a gleaningsretaining pan 6 which supports across its otherwise open top a screen 1 across which straw and chaff are discharged and which is in continuity with the rear end of the upper sieve 4, or with a thistle screen 3, the pan being secured to the combine harvester, as by brackets 12 and hooks 9, to return gleanings for recirculation therethrough. The screen 1 may comprise a plurality of spaced bars, e.g. connected to a rail 2 pivoted between the sides of the pan. The pan may have a slidingly adjustable part 14 carrying a support 15 for the bars whose extremities 5 are preferably curved.
Patent GB-256144-A (GB)
Title: Improvements in bumpers or collision guards for vehicles
IPC: B60R19/20
Filed: 1926-03-06
Abstract: 256,144. Douglass, J. L. March 6, 1926. Collision - guards. - A bumper bar for a vehicle comprises a resilient hollow member 10, preferably of rubber, provided with air vents 12, Fig. 3, and secured by straps 23 to jaws 20 carried by transverse bars 13, 14 which are supported from the chassis side members by brackets 24.
Patent GB-752817-A (GB)
Title: Single axle hand truck
IPC: A61G5/06
Filed: 1954-03-04
Abstract: 752,817. Facilitating passage over steps or stairs. DASTER, O. March 4, 1954 [March 4, 1953], No. 6342/54. Class 108 (2). In a motorless hand-truck comprising a single axle, a supporting frame a fixed to the latter and provided with a steering and supporting bail or handle c, a rotatable three-armed spider e is provided on each end of the axle, of which each arm carries a wheel e<SP>1</SP> on its end, the wheels being mounted independent one from the other and capable of rotating about the main shaft of the spider and about their own axes when the vehicle is moved up and down stairs. The arms of the spiders may be apertured or slotted to permit adjustment of the wheel positions.
Patent GB-1042304-A (GB)
Title: The stretching of polyolefinic fibres
IPC: D02J1/22
Filed: 1964-02-17
Abstract: 1,042,304. Stretching polyolefin fibres. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E. CHIMICA. Feb. 17, 1964 [Feb. 26, 1963], No. 6456/64. Heading B5B. In a process for stretching polyolefin fibres, the fibres are subjected to a temperature gradient of 30-1200‹ C. by contact with a heating plate while being stretched. The fibres, e.g. polypropylene, may be in the form of monofilaments, multi-filaments or roving for staple. The highest temperature to which the fibres may be subjected is the fibre melting- point. The stretch ratio may be 1: 2 to 1 : 10. Apparatus for the process comprises a heating plate between first and second rollers, the plate containing heating elements asymmetrically distributed therein. The heating plate may be convex, flat or grooved and formed of, e.g. stainless steel or iron. The heating elements may be electric coils or tubes containing hot fluid.
Patent GB-149715-A (GB)
Title: Improvements in stringed musical instruments
IPC: G10C3/10
Filed: 1919-03-17
Abstract: 149,715. Ostrander, A. J. March 17, 1919. Pianoforte &c. bridges, straining devices, and wrest-planks.-A common source of energy maintains at the correct relative degree of tension all the strings, the vibratory length of which is kept constant under temperature &c. changes by means of rocking bridges. The pitch of the instrument is altered by varying the amount of energy applied. Fig. 1 shows the invention embodied in a pianoforte, 1, 2, 3 being the strings of a unison secured to pins 4 and passing over bridge and clamp pieces 5, 10. These pieces may be separate for each string, and owing to the curvature and the compensatory rocking about the axes 6, 11, expansion of the strings does not affect the free vibratory length. A fixed tension is maintained through the action of a weight 14, exerting pressure on the plunger 20 by means of the rod 15 and the lever 17 pivoted to the channel plate 19. The pressure exerted in the mercury cylinder 21 by the plunger 20 to which is affixed a tubular membrane 24, 25, 26, is transmitted through the tube 28 to a channel 29 extending the length of the plate 19 and having laterals at intervals with branches opening under plungers 34 operated by membranes 36, 37 in open-ended cvlinders 33. These plungers have cross-sectional areas approximately proportional to the relative tension required, and actuate levers 39 with fulcra 40 on the rail 41, connected by rods 43 to levers 45 with fulcra 46 bearing the pins 4. The position of any rod 43 is slidably adjusted by shackles 42, 44 and fixes the precise degree of tension for the corresponding string. The pitch of the instrument is maintained by the fluid pressure, and is changed by varying the weight 14. In a modification of the pressure chamber, the support 32a, Fig. 7, forms a wall of the chamber 28a, and has bores 33a acting as pressure cylinders. When a viscous fluid such as vaseline is used instead of mercury, a yielding diaphragm 50 is employed, common to an air chamber 51 with valve 52 to introduce therein the requisite pressure, the purpose of the air chamber being to cause fluctuations in the fluid pressure to be rapidly transmitted throughout the chamber 28<a>.
Patent GB-1142941-A (GB)
Title: Improvements in and relating to gas producing
Inventor: THOMPSON JACK
IPC: C10K3/06
Filed: 1965-02-16
Abstract: 1,142,941. Making town's gas. WHESSOE Ltd. 6 May, 1966 [16 Feb., 1965], No. 6631/65. Heading C5E. A fuel gas is made by cracking ammonia to form a mixture of H 2  and N 2  and enriching the mixture with a gas of higher calorific value, e.g. methane, propane or butane, or a mixture thereof. Two embodiments are described, one using liquid ammonia as the starting material, see Fig. 1 (not shown), and the other using an aqueous solution of ammonia, see Fig. 2 (not shown). In both embodiments the ammonia is catalytically cracked in an externally heated furnace and the H 2 /N 2  gas mixture washed, e.g. with water in-an absorber, to remove residual NH 3 , before being mixed with the hydrocarbon gas and the liquor from the absorber is delivered to a distillation column to recover NH 3  which is added to the ammonia feed, water from the column being returned to the absorber. Instead of cracking in a heated furnace, the ammonia may be preheated and passed over an unheated catalyst, and two or more catalytic stages may be arranged in series, reheating of the gas between stages being reduced by mixing a portion of the final cracked gas with the ammonia feed