baber/WOPTO huggingface dataset:
Patent GB-559059-A (GB)
Title: Improvements relating to commutators for dynamo electric machines
IPC: H01R39/04
Filed: 1942-07-30
Abstract: 559,059. Commutators for dynamo-electric machines. LUCAS, Ltd., J., and BAILEY, A. J. July 30, 1942, No. 10673. [Class 35] The copper or other metal segments a of a commutator are linec with a bush d of thermo-plastic thermo-setting or other insulating material which is moulded or other wise arranged within the segments and an inner metal bush e is cast into position subsequently to the formation of the insulating bush. The parts may be locked together by dovetail formations b or equivalent means.
Patent GB-167122-A (GB)
Title: Improved blasting detonator and method of manufacturing the same
IPC: F42B33/00
Filed: 1921-04-12
Abstract: 167,122. Schulze, A. April 12, 1921. Cartridge-loading-apparatus; blasting detonators.-A blasting detonator a is compressed at its base by a conical plunger k after compression from above by a plunger g. These plungers are worked by handles o, i, which may be gripped by one and the same hand. The base of the detonator may be subjected to lateral compression before the longitudinal compression. The bottom of the detonator may be perforated by the plunger k, an inner ring being left. Reference has been directed by the Comptroller to Specification 172,914.
Patent GB-1089674-A (GB)
Title: Device for determining the weight of a given volume of aerated liquid
Inventor: MONK CYRIL JAMES HENRY
IPC: G01N9/02
Filed: 1964-03-13
Abstract: 1,089,674. Density measurements. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 11, 1965 [March 13, 1964], No. 10729/64. Heading G1S. Apparatus for determining the weight of a given volume of an aerated liquid comprises a cylinder 1 closed at one end by a pressure release cap 5 which is retained under the required pressure by a screw mechanism 7, housed in an assembly 3 engageable over the lugs 2 of the cylinder 1 and pressing against springs 8. The other end of the cylinder 2 is sealed by a piston controlled by a screw mechanism 14. In operation, the piston 12 is inserted into the cylinder 1 and lugs 10 of a cross-bar 11 engaged in slots 9. Liquid to be measured is then poured into the cylinder and the pressure release cap 5 placed in position. The liquid is compressed by movement of the piston 12 until pressure inside the chamber is sufficient to release the pressure cap 5, when it is forced out until the pressures are equalized and the cap recloses, thus removing air present in the liquid. The apparatus is subsequently weighed.
Patent GB-270285-A (GB)
Title: Improvements in spring driving mechanism for talking machines
IPC: G11B17/02
Filed: 1927-04-22
Abstract: 270,285. Muchajer, P. April 27, 1926, [Convention date]. Driving.-A spring which slips and allows the necessary rotation of the winding-spindle of a gramophone motor to occur when the mainspring is being wound up, and forms a driving-coupling in the transmission train during the unwinding of the mainspring, is mounted on an intermediate spindle of the transmission gear. The mechanism shown comprises a mainspring 8 located in a casing 9 fixed below the frame-plate 2, which, together with a plate 1 provides bearings for the transmission gearing, the turntable spindle 14, and a centrifugal governor 17 - - 20. The winding-spindle 4 carries a pinion 5 which engages with a wheel 6 on the mainspring spindle 7, the wheel 6 also gearing with a toothed sleeve 10, loose on a spindle 11. On this spindle is fixed a wheel 12 gearing with a pinion 13 on the turntable spindle. A cylinder 21 is also fixed to the spindle 11, and around it is coiled a spring 22, one end of which is connected to the sleeve 10, the other end of the spring being loose. The direction in which the spring 22 is coiled is such that when the mainspring is being wound up, (rotation of the parts 4, 10 occurring in the direction shown by the arrows, Fig. 1), the spring 22 slides over the cylinder 21, which, together with the spindle 11 and the parts geared thereto, remains at rest. During the running down of the mainspring, its drive is transmitted to the turntable through the spindle 11 by the spring 22 binding upon the part 21. Speed-regulating and indicating; starting and stopping.-A wheel 16 on the turntable spindle 14 drives a centrifugal governor, which comprises a friction disc 19, axially movable under the action of weights 17. A brake-pad 20, coacting with the disc 19, is mounted on a spring plate 27, having a bent-up corner 26 with which the inclined end 25 of a lever 24 is adapted to engage. The position of the lever 24, which determines that of the parts 27, 20, is adjusted by moving its end 31 into contact with a rotatable eccentric plate 28, which carries a pointer adjacent to a speed-indicating scale 29. When the lever 24 is moved against a fixed stop 30, it releases the spring plate 27, allowing the brakepad 20 to press hard against the disc 19.
Patent GB-216655-A (GB)
Title: Improvements relating to weighing scales, balances or the like
IPC: G01G1/00
Filed: 1923-04-21
Abstract: 216,655. Brecknell, Ltd., C. W., and Beech, J. April 21, 1923. Balances and the like; vibration, neutralizing. -In weighing scales, balances and the like in which the weight is indicated wholly or partly by an index movable over a scale a horizontal main beam is used in combination with a small subsidiary beam situated beneath the main beam, a weighted pendulous arm on the subsidiary beam, a pair of weighted vertical rods connecting the two beams on opposite sides of their bearings, and an index attached to the subsidiary beam, the connection between the beam and the adjacent end of each rod being such that it is adapted to transmit motion only in one direction, the .connections consisting of an adjustable cup and point bearing at one end, and a knife-edge bearing at the other end. The short subsidiary beam h mounted on a knife-edge bearing g is connected to the main beam a by a pair of vertical rods i and carries a pendulous weight j and an indicating pointer k registering with a scale f. A vane m on the subsidiary beam works in a dash pot l. The connection between the upper end of each rod i and the main beam is by a knifeedge bearing n. The lower end o, Fig. 2, bears upon the subsidiary beam through a pair of adjustable steel points r and a weighted shackle q resting on a knife-edge bearing s on the subsidiary beam. By this arrangement the rod i is adapted to transmit motion in one direction only.
Patent GB-786578-A (GB)
Title: Improvements in or relating to variable magnetic coupling devices
Inventor: TYLER VICTOR JOSEPH
IPC: H01F21/08
Filed: 1955-04-15
Abstract: 786,578. Transformers and inductors. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 16, 1955 [April 15, 1955], No. 10898/55. Class 38 (2). [Also in Group XXXIX] A variable magnetic coupling device comprises a core structure in two parts 2, 3; a winding 1 being wound around the two core parts to wholly contain the core parts within the coil, a second winding 9 being wound around the core parts 2, 3 in a figure-of-eight fashion so that when the slider 7 is at the centre of a potentiometer 8 to give equal and opposite polarizations to the core parts 2, 3 by means of polarizing windings 4, 5 there will be no coupling between the windings 1 and 9. Movement of the slider 7 will cause the windings 4, 5 to alter the polarizations and thereby the reluctances of the core parts equally in opposite directions, thus there will be unequal voltages induced in the turns of the winding 9 with the result that a voltage will appear across the winding 9. Thus the coupling between the windings 1 and 9 is controllable by means of the polarizing windings 4, 5 in turn controlled from the potentiometer 8. In further embodiments an additional winding may be wound round the two core parts to which additional winding is applied a voltage having an A.C. component and a D.C. conponent. With such a construction the device acts as a magnetic modulator, the output obtained from the winding 9 in response to a carrier frequency input to the winding 1 being amplitude modulated. If the additional windings contain turns which completely enclose both core portions as does the winding 1 the carrier frequency will be injected into the output circuit. In yet a further embodiment the two core portions may be joined by bridge members, the two core portions being at right-angles to the bridge members.
Patent GB-974579-A (GB)
Title: Improved crepe yarns and textile articles made therefrom
IPC: D02G1/00
Filed: 1963-03-19
Abstract: At least one crepe-twisted regenerated cellulose yarn is lapped with a synthetic e.g. polyacrylonitrile, polyamide, polyester or polyolefin, yarn or monofilament of finer count, the lapping twist being one tenth-one quarter of the crepe twist and in the same direction.  The yarn may be "twist-set" e.g. sized or thermally treated as by steaming, to neutralise temporarily the mechanical reaction generated by the high twist, knitted or woven into fabric and "released" to develop crepe effects therein.  A woven fabric comprises alternate S-twist and Z-twist lapped yarns in the warp and yarns of blended wool and polycaprolactum fibres in the weft. Another fabric has warp and weft of the lapped yarns used alternately two of S-twist and two of Z-twist.
Patent GB-493872-A (GB)
Title: Improvements in portable picture transmission apparatus
IPC: H04N1/06
Filed: 1937-04-16
Abstract: 493,872. Copying-telegraphy. ASSOCIATED PRESS. April 16, 1937, No. 10944. Convention date, June 4, 1936. [Class 40 (iii)] A picture drum 59 is rotated by its support 6 and an axial feed is imparted of a pitch different from that of a threaded nut 61 which is secured to the drum. The rotary shaft, which extends through the drum, has a non- circular section 6, which fits an aperture in an end plate 66 of the drum, and a round section 5. A threaded sleeve 58 is disposed concentrically on the round section and turns in the threaded nut on the drum. The shaft is driven by gears 39, 42 and the threaded sleeve by gears 50, 51, 54, 55 from a common motor 21. A clutch 87 is arranged between the gears 51, 54. When the handle is depressed, the clutch, Fig. 3 (not shown), is disconnected and the drum rotates without axial movement. The gears 54, 55 are so designed that, when the clutch is engaged, the sleeve is rotated differently from the drum to produce an axial movement of the drum for scanning. To return the drum quickly to the starting point, the clutch is disengaged and the rotation of the threaded sleeve is restrained by a brake 96, 100, Fig. 7 (not shown), which acts on the hub of the gear 55.
Patent GB-757644-A (GB)
Title: Improvements relating to rubbery compositions
Inventor: NEALE ALBERT EDWARD TONEY
IPC: C08L7/00
Filed: 1954-04-15
Abstract: A composition particularly for golf-ball covering material contains gutta-percha or balata, and a product formed by co-polymerizing an aromatic vinyl compound and a conjugated-diene hydrocarbon in a natural rubber latex. Preferably styrene and butadiene are used in molar proportions of 60:40 to 76:24, or in proportions of 70:30 to 90:10 by weight, in natural rubber latex, the combined weight of styrene and butadiene being in the proportion of 5:6 to 5:1 in relation to the weight of natural rubber in the latex.  The composite latex is coagulated, and the coagulum mixed with gutta percha or balata, and vulcanizing and other ingredients which may include natural rubber.  Alternatively natural rubber latex may be added to the composite latex and the mixed latices coagulated.  In one of the examples butadiene and styrene are copolymerized in natural rubber latex as described in Specification 652,401, to provide a composite copolymer comprising 50 parts natural rubber and 50 parts of a copolymer of butadiene and styrene (in the proportions of 20 : 80 by weight).  The composite latex is then mixed with natural rubber latex, 17 parts by weight of natural rubber being added to 72 parts of the composite copolymer.  The dispersion is coagulated with dilute acetic acid, and the coagulum mixed with 76.7 parts of gutta percha, and vulcanizing ingredients and fillers.ALSO:A rubber composition particularly for use as golf-ball covering material contains gutta-percha, or balata, and a substance formed by co-polymerizing an aromatic vinyl compound and a conjugated-diene hydrocarbon in a natural rubber latex. Preferably the latter substance is formed by co-polymerizing styrene and butadiene in molar proportions of 60:40 to 76:24, or in proportions of 70:30 to 90:10 by weight, in natural rubber latex, the combined weight of styrene and butadiene being in the proportion of 5:6 to 5:1 in relation to the weight of natural rubber in the latex.  The composite latex so obtained is coagulated, and the coagulum mixed with gutta-percha or balata, and vulcanizing and other ingredients which may include natural rubber. Alternatively natural rubber latex may be added to the composite latex and the mixed latices coagulated.  In one of the examples butadiene and styrene are co-polymerized in natural rubber latex as described in Specification 652,401, to provide a composite copolymer comprising 50 parts natural rubber and 50 parts of a copolymer of butadiene and styrene (in the proportions of 20:80 by weight).  The composite latex is then mixed with natural rubber latex, 17 parts by weight of natural rubber being added to 72 parts of the composite copolymer.  The dispersion is coagulated with dilute acetic acid, and the coagulum mixed with 76.7 parts of guttapercha, and vulcanizing ingredients and fillers.  Specification 652,401 is referred to.
Patent GB-454950-A (GB)
Title: Transformer for electric arc welding
IPC: H01F29/10
Filed: 1935-04-10
Abstract: 454,950. Transformers. FRIES, E., 77, Oerlikonerstrasse, Oerlikon, Switzerland. April 10, 1935, No. 11098. [Class 38 (ii)] A welding transformer comprises a core having limbs 1, 2 carrying primary and secondary windings 4, 5 and pro. vided with a third limb 3 pivotally connected thereto to permit of the variation of the air gap 8. A choke winding 7 situated around the air gap is connected in series with the secondary winding 5 in such a way that at no-load the voltage induced in winding 7 by flux flowing through the limb 3, is added to the secondary voltage. The limb 3 is provided with a projection 9 which bridges the air gap at any position of the limb 3 and an air gap may be provided in the limb 2. The projection 9 may have a high magnetic permeabilitv and pronounced limit of saturation. The limb 2 is dimensioned to pass during working the main flux and also the flux produced in the limb 3 by the load current passing through the coil 7 which is in the opposite direction to the flux passing through this limb during noload. The projection 9 may be replaced by a small separate core and the limb 3 may be secured to the main core by a comb-like connection. The Specification also describes the arrangement applied to a Scott-connected transformer.
Patent GB-585599-A (GB)
Title: Reinforced concrete building constructions
IPC: E04B5/26
Filed: 1944-06-09
Abstract: 585,599. Reinforced concrete beams. SOMERVILLE, J. C., and JOHNSON, S. June 9, 1944, No. 11107. [Classes 20 (ii) and 20 (iv)] In a prefabricated reinforced concrete floor beam unit comprising a metal framework of upper and lower main members joined by diagonal members, one of the main members being encased in a concrete slab from which the remaining framework projects exposed, the framework is of triangular section with its base embedded in the slab. In the floor construction shown one main member comprises the rods 1, 2 embedded in concrete forming the slab 3 and the rods 1, 2 are joined by the diagonal 5 and 6 to the upper main member 4. Hollow tiles 7 are laid on the slabs and the space 10 between them is filled with concrete 11. Reinforcing rods 9 are preferably disposed above the tiles and held in place by the concrete. A screed of fine concrete 12 finishes off the surface. The units may be used in a vertical or inclined position to form walls or roofs.
Patent GB-833957-A (GB)
Title: New ª‡-keto-ª‰-cycloalkanoyl-ª†-halogenomethyl-ª†-lactone compounds and their preparation
IPC: C07D307/60
Filed: 1958-04-08
Abstract: The invention comprises a -keto-b -cycloalkanol-g -halogenomethyl-g -lactones of the general formula <FORM:0833957/IV (b)/1> \sX <FORM:0833957/IV (b)/2> (wherein R is alicyclic radical with 3 to 8 nuclear carbon atoms which may be substituted by one or more lower alkyl groups and may have one unsaturated double bond in the nucleus, X is a bromine or chlorine atom, Y is a hydrogen, bromine or chlorine atom, and X and Y are the same when representing bromine or chlorine atoms), and the preparation thereof by reacting a cycloalkanoyl-pyruvic ester of the general formula R-CO-CH2-CO-COOR1 (wherein R1 is a lower alkyl radical) with a halogeno acetaldehyde of the general formula YX2C.CHO at temperatures not exceeding room temperature, and preferably between 0 DEG  C. and 10 DEG  C.  The term lower means that the alkyl groups have 1 to 5 carbon atoms. Ethyl b -methylcyclopropanoyl pyruvate is made by condensing acetyl-methylcyclopropane with diethyl oxalate in the p  presence of sodium methoxide.  Similarly made are ethyl b -(2.2-dimethyl - cyclopropanoyl) - pyruvate and the sodium enolate of ethyl b -cyclo-hexanoyl pyruvate.
Patent GB-848136-A (GB)
Title: Improvements relating to electric lampholders
Inventor: GOODIER GEOFFREY THOMAS
IPC: F21V21/002
Filed: 1958-04-09
Abstract: 848,136. Lamp-holders. NETTLE ACCESSORIES Ltd. March 2, 1959 [April 9, 1958], No. 11184/58. Class 38(1) A lamp-holder body 1 of moulded resilient material has a slot 2 in its base into which project the pointed ends 4 of contacts 3 carried by the body, said pointed ends being adapted to penetrate the insulation of a cable placed in the slot and retained therein by a cover 9 adapted to be screwed to the body and having a channelshaped projection 12 which enters the slot. The body may be constructed to receive a bayonet or screw-cap lamp and has a skirt 10 which grips the neck of the lamp to exclude moisture. The bayonet slots or screw thread may be formed in an insert, for example of nylon.
Patent GB-309506-A (GB)
Title: Improvements in and relating to the manufacture of electrically insulating materials
IPC: H01B3/00
Filed: 1929-04-11
Abstract: 309,506. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). April 11, 1928, [Convention date]. Insulating - materials. - Ashestos fabric or asbestos paper is used as a support for insulation of the kind formed of layers of varnish or lacquer made from linseed oil or wood oil, each layer being of less that 0.01 mm. in thickness. The support is dipped in the lacquer to coat it, and is then dried at a temperature between 200' C. and 270‹ C.
Patent GB-566880-A (GB)
Title: Improvements in and relating to photographic colour development
IPC: G03C7/36
Filed: 1943-07-12
Abstract: A process of colour development includes the development of a reducible silver salt image with an aromatic amino developing agent in presence of a colour coupler of the formula <FORM:0566880/IV/1> wherein R is an alkyl group, X is H or an alkyl, aryl, or aralkyl group, and Y is acylacetylaminophenyl.  The coupler may be in the developer, which may include one of the usual aromatic amino developing agents, or in the emulsion, which may contain gelatin or other emulsion binder and may be coated on a plate, film, or paper support.  The material may have differently coloured sensitized emulsions of the mixed grain type or differently colour sensitized emulsion layers superimposed on one or both sides of the support. Examples specified are N-p-sec.-amylbenzoyl : N1-acetacet-p-phenylenediamine, N-p-sec.-amylbenzoyl : N1-benzoylacet - p - phenylenediamine, N - p - sec. - amyl - benzoyl : N1-anisoylacet-p-phenylenediamine, and N - p - methylbenzoyl : N1 - acetoacet - p - phenylenediamine.  A developing solution including 2-amino-5-diethylaminotoluene hydrochloride and N - p - methylbenzoyl : N1-acetoacet-p-phenylenediamine and a developing solution for use with an emulsion containing a coupler according to the invention are described.  P-sec.-amylacetophenone is prepared by reacting p-sec.-amylbenzene and acetic anhydride or acetyl chloride in a Friedel-Crafts reaction.  P-sec.-amylbenzoic acid is prepared by oxidizing p-sec.-amylacetophenone with sodium hypochlorite. P-sec.-amylbenzoyl chloride is prepared by reacting p-sec.-amylbenzoic acid with phosphorus chloride or thionyl chloride. P-(p1 - sec. - amylbenzamido) - aniline hydrochloride is prepared by reacting p-sec.-amylbenzoyl chloride with p-nitraniline in dry quinoline, and reduced in the Adam's shaker. N-p-sec.-amylbenzoyl : N1-benzoylacet-p-phenylenediamine is prepared by suspending p-(p1-sec.-amylbenzamido)-aniline hydrochloride in alkali and extracting with benzene, adding xylene to the dried and washed solution, and then heating the xylene extract with a xylene solution of ethyl benzoylacetate.  N-p-sec.-amylbenzoyl : N1-acetoacet-p-phenylenediamine, N-p-sec.-amylbenzoyl : N1-p-phenylenediamine, and N - p - methylbenzoyl : N1-acetoacet-p-phenylene-diamine are prepared similarly. Specifications 427,516, 427,520, 440,032, 440,089, 447,092, 507,841, 524,154, 524,554, 524,555, 536,939, 538,914 and 541,589 are referred to.
Patent GB-406743-A (GB)
Title: Improvements in and relating to the manufacture of coloured, transparent films for the photographic and cinematographic arts
IPC: G03C5/50
Filed: 1933-04-08
Abstract: 406,743. Photographic processes; colour photography. MURRAY, H. D., and SPENCER, D. A., 118, Fulham Road, Chelsea, London. April 8, 1933, No. 11393/32. [Class 98 (ii).] Relates to the production of coloured transparent films by the local insolubilization of an emulsoid colloid, e.g. gelatine, in contact with photographic silver images in the presence of bleaching-agents, particularly according to Specification 377,706, and is characterized by coating the carrier of a pre-formed silver image with a hot emulsoid sol coloured with the desired colour in the form of a substantially water insoluble organic dyestuff in a colloidal state of subdivision. The dyestuffs should be free from lake-forming salts, but basic dyes may also be employed in the form of hydroxides, carbonates or sulphates, and acid dyes may also be used in the form of their metallic salts, e.g. alkaline-earth salts. The colloidal dispersion may be obtained by synthesizing the dye in situ in the emulsoid or by colloidal grinding &c. Examples are given of (1) oxidation of a leuco dye in a gelatine solution by means of hydrogen peroxide ; (2) formation of an azo-dye in a gelatine solution ; (3) reducing the dye-stuff to a colloidal paste and mixing this with the gelatine, and (4) dispersing the dyestuff directly in the emulsoid. Suitable emulsoids are gelatine, agar-agar, algin from sea-weed, and the colloid from Iceland moss. Specifications 383,799 and 390,093 also are referred to.