baber/WOPTO huggingface dataset:
Patent GB-624899-A (GB)
Title: Improvements in or relating to stocks and dies for screw-threading of tubes
IPC: B23G1/22
Filed: 1947-03-05
Abstract: 624,899. Die-stocks. PASS & CO., Ltd., E., and COOKE, F. March 5, 1947, No. 6303. [Class 83 (iii)] In a stock and die screw-threading device for tubes, spring-closed collet jaws e are adapted to support the tube h immediately within the screwing area and have flanges h<SP>2</SP> to limit their entrance into the tube, the jaws being expanded by a cone-headed bolt f<SP>1</SP> having mounted thereon a threaded sleeve i and an operating nut n, the sleeve i having rotatable thereon a lead nut k which is secured to a reversible ratchet-operated stock a provided with die segments b, the advance movement of the lead nut being limited by a flange o on the sleeve i.
Patent GB-1372821-A (GB)
Title: Apparatus for receiving coded signals
Inventor: STOLT N
IPC: H04W88/02
Filed: 1973-02-09
Abstract: 1372821 Radio signalling TELEFONAKTIEBOLAGET L M ERICSSON 9 Feb 1973 [9 Feb 1972] 6569/73 Heading H4L [Also in Division G4] Apparatus for receiving coded signals, e.g. calling signals as shown in Fig. 1 for a radio receiver, and for producing an indication 16 only in response to the reception of a signal having a given coding, comprises a filter 3 settable to pass, one at a time, alternating signal bursts of different frequencies f 1 , f 2 ; means 4, 5 for forming a steady pulse of the same duration as the applied burst when this has a frequency to which filter 3 is at that moment set; means 7 for monitoring the duration of and spacing between the pulses; and a stepping device 10 having a reset state and a number of further states between which it can be stepped to give outputs 0,1,2,..., n connected via a coding device 11 to filter 3 to select its pass frequency in dependence upon the state of the device 10. In response to the detection by 7 of a pulse formed by 4, 5 of a duration 2T equal to a start burst, device 10 is set by a signal A to a first of its further states, whereafter it is stepped through its states in response to pulses from 5 until it reaches its end state, when a signal B activates audible indicating apparatus 14-16. If no pulse is detected by 7 during any interval 2T (i.e. the code is not correct for that apparatus) device 10 is reset to await detection of another start signal of duration 2T. On detection by 7 of a start pulse of duration 4T a signal C sets a switching device 12 to alter the outputs from 10 and hence cause filter 3 to accept a different arrangement of frequency bursts-thus the apparatus can be used to detect two coded signals (e.g. a "group" code and an "individual" code). Means 4 is a level detector which produces a pulse for each received cycle having an above-threshold frequency. Means 5, 7 contain counters 6, 8: 6 counts while D.C. pulses corresponding to one frequency burst are being received and 8 determines the width of and the interval between the pulses from 5.
Patent GB-414603-A (GB)
Title: Improvements in circuit arrangements for amplifying or producing high frequency oscillations
IPC: H03B5/10
Filed: 1934-03-01
Abstract: 414,603. Valve circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 1, 1934, No. 6609. Convention date, March 11, 1933. [Class 40 (v).] In an oscillator or highfrequency amplifier in which the earthed point is not the filament of the valve, choke coils S1, S2, are provided to prevent high-frequency current from leaking through the filament-heating generator and earth. According to the invention these coils are located in the primary circuit of a step-down transformer T, in order that small coils made of fine wire may be usable. In a modification (Fig. 2, not shown) the coils S1, S2 are coupled to the inductance L.
Patent GB-854396-A (GB)
Title: Improvements in electrical tape switches
IPC: H01B7/10
Filed: 1959-02-25
Abstract: 854,396. Retractive strip switches. TAPESWITCH CORPORATION OF AMERICA. Feb. 25, 1959 [March 3, 1958], No. 6616/59. Class 38 (5). A pressure-responsive tape strip having two longitudinal spaced contact members which are pressed together to make contact, has one of the strips arranged so as to provide a conductive path longer than the switch so that the switch can be bent or coiled without the switch making. A contact strip 1 partly covered with an insulant 3 has a further strip 2 of zig-zag formation and a further insulating strip 5. The whole is clad in a suitable resilient covering. The strip 2 may be of bent wire.
Patent GB-1576563-A (GB)
IPC: B26D7/06
Filed: 1978-02-20
Abstract: Corrugated tubing is advanced along its axial path by rotatably driven lead screw members the screw threading of which is in meshing engagement with the corrugations of the tubing, the lead screw members being in pairs with the screw threading of the members of each pair being of opposite hand and the lead screw members of each pair being rotated in opposite directions. The lead screw members of each pair present outwardly directed cutters which are synchronized substantially simultaneously to intersect the tubing thereby, in perforating the tubing, to restrain the tubing against rotation thereof about the axial path. There is also disclosed a method of producing the lead screw members with the outwardly projecting cutters mounted thereon.
Patent GB-665381-A (GB)
Title: Improvements in connection with electric socket contact elements
Inventor: LESLIE EDWIN WILLIAM CHARLES N
IPC: H01R13/15
Filed: 1949-03-11
Abstract: 665,381. Two-part-couplings. NEW DAY ELECTRICAL ACCESSORIES, Ltd. Feb. 24, 1950 [March 11, 1949], No. 6704/49. Class 38 (i). A socket contact a comprises at least one resilient contactpiece e secured at one end to the contact body by a rivet f and entering into a slot b near one side thereof, there being a bowed spring blade g between the contact-piece e and the slot side. The slot is extended at d to limit the movement of the free end of the contact-piece. Specification 620,541 is referred to in the Provisional Specification.
Patent GB-123998-A (GB)
Title: Improvements in Photographic Cameras.
IPC: G03B17/26
Filed: 1916-05-13
Abstract: 123,998. Williamson Kinematograph Co., and Williamson, C. M. May 13, 1916. Aeronautical photography.-Relates to the feeding mechanism of cameras employed on aircraft. The disk 1 is mounted on a shaft which is rotated by gearing from a propeller driven by wind pressure. An arm 2 is pivoted on a crank-pin carried by the disk 1, and is guided by a pin 3 working in a slot 4 formed in a plate 5. The slot 4 is shaped so that the claw 8 attached to the arm 2 moves upwards, downwards, and forward in succession so that it engages in holes in the sensitive film 7 and moves it forward intermittingly. The edge of the disk 1 is formed as a cam which acts on the roller 10 carried by the lever 11 so as to actuate the punch 6 just before the claw 8 engages with the film. At the same time, the spring 17 moves the sleeve 16 into contact with the film to facilitate the withdrawal of the punch. A needle point 18 is attached to the claw 8 to feed the film forward before sufficient holes have been punched.
Patent GB-106494-A (GB)
Title: Improvements in Lock-nuts.
Inventor: CARY JAMES HUSSEY
IPC: F16B39/04
Filed: 1917-05-14
Abstract: 106,494. Cary, J. H. May 13, 1916, [Convention date]. Locking nuts.-The face of a nut has a groove 5 of uniform cross - section which receives a tapered pin 4 held in position by a spring 6. The pin 4 has a V-shaped edge, Fig. 3, adapted to engage the thread on the bolt. The pin can be inserted from either end to lock the nut in either direction, the spring being arranged accordingly. The groove may be arranged perpendicular to a side. In a modified form of spring, a turned end of the spring is locked in a small saw-cut in the nut. In a further modification, the pin is provided with a spring end.
Patent GB-101452-A (GB)
Title: Improvements in Hand-sewing Tools.
Inventor: MYERS CLARENCE ALBURTO
IPC: D05B55/02
Filed: 1916-05-16
Abstract: 101,452. Myers, C. A. May 16, 1916. Hand sewing-tools.-In hand sewing-tools, provision is made for rotatably mounting a reel between the forward end of the handle and the needle support and co-axially therewith in such a manner that the reel may be removed or rewound without the necessity of disturbing the needle support. In one form, the needle is secured in arm of a yoke member 3 secured to the handle, and the reel 7 is mounted on a pin 6 screwed into the inner member of the yoke, or passed through the chuck 4, 5, Fig. 2, carried in the overhanging the hollow handle and screwed into the overhanging member. In a modification, Fig. 4, the reel is carried on a pin 13 on the end of an arm 12 secured to a pivot pin 11, which works in extensions 10, 9 of the yoke member. The reel is held in working position by a slotted spring plate 14. Fig. 6 shows another construction in which the pin carrying the reel is formed on a bracket 15 secured by a screw 16. In the construction shown in Fig. 7, the reel 16 is held by a slotted spring washer 21 engaging a groove in the end of the handle and is made of a size to enable it to pass over the needle-securing chuck.
Patent GB-1066188-A (GB)
Title: Antistatic agents and their uses
Inventor: CLACHAN MARGARET LOUDON
IPC: C08J7/044
Filed: 1965-02-18
Abstract: An antistatic agent which is a polymer containing the structure <FORM:1066188/C3/1> where A is H or alkali metal atoms, X is an aromatic nucleus and n is 1, 2 or 3 is claimed. The polymer may be prepared by reacting a copolymer of maleic or itaconic anhydrides and either ethylene, styrene, methyl vinyl ether or methyl methacrylate, with a phenol-, cresol-, xylenol- or naphtholmono- or poly-sulphonic acid having 1-3 sulphonic acid groups attached to the aromatic nucleus, e.g. phenol sulphonic acid, sodium salt, 2-naphthol 7-sulphonic acid sodium salt (F-acid) or 2-naphthol 6,8-disulphonic acid potassium salt (G-acid).  This reaction may be carried out in the presence of sodium or potassium hydroxide in water or in dimethyl formamide.  The polymer may be applied to a film of plastic together with a cross-linking agent, e.g. hexamethoxymethyl melamine or a bis-epoxide, and p-toluene sulphonic acid aqueous methanol.ALSO:A film of plastic is coated with an antistatic agent which is a polymer containing the structure <FORM:1066188/B1-B2/1> where A is H or alkaline metal atoms, X is an aromatic nucleus and n is 1, 2 or 3. The film of plastic may be pre-coated with a lacquer containing finely divided solids, or super-coated with another coating layer, and may be coated on both sides.  The plastic film may be a plasticised secondary cellulose acetate film or a silica-filled plasticised nitrocellulose coated polyethylene terephthalate substrate.
Patent GB-391294-A (GB)
Title: Improvements relating to crushing and mixing mills of the edge-runner type
IPC: B02C15/14
Filed: 1932-03-09
Abstract: 391,294. Edge-runner mills. WINGET, Ltd., The Cape, Warwick, and MARTINEZ, H., 4, Stephendale Terrace, St. Peters, Newcastle-on-Tyne. March 9, 1932, No. 7088. [Class 59.] In an edge-runner mill which is discharged. by a hinged plough travelling around the pan, the means for changing over the discharge plough from its operative to its inoperative position and vice versa, comprises an operating hand-lever supported on a central column carried by and revolving with the head of the mill, the column being free to revolve in the supporting member. The discharge plough u which rotates with the head b is adapted to be lowered by a non-rotary hand-lever h to discharge the contents of the pan z through a discharge opening q<1>. The hand-lever h is provided with a split ring engaging in a groove of a rotatable sleeve k slidably mounted on a rod a. The extremity of the lever h is pivoted by a link f to non-rotatable ring e retained between rotatable collars d fixed to the shaft a. The sleeve k is connected by a link n to a crank p connected to a bent rod r which is connected by a link t to the plough arm v pivoted on a bar w. The end of the lever h is depressed along a guard y to lower the plough to its discharge position. The mixing ploughs w<1> are mounted on the rod wand a parallel rod w<2>. The runners c are offset from the axis and may be adjusted vertically.
Patent GB-267934-A (GB)
Title: Improved means for regulating the wattless current of cascaded dynamo-electric machines
IPC: H02K17/38
Filed: 1927-03-15
Abstract: 267,934. Siemens - Schuckertwerke Ges. March 19, 1926, [Convention date]. Regulation, automatic; systems depending on two or more machines.-In order to regulate for constant rotor current of an induction motor 11 cascaded with a secondary commutator machine 12, a variable ratio transformer 13 feeding the rotor of the commutator machine is automatically adjusted by a reversible motor 15 controlled by a relay 16 responsive to the vector sum of the stator current of the induction motor and the wattless current output of the cascade set. Vector diagrams of the method are given in the Specification.
Patent GB-1316557-A (GB)
Title: Saw log slabwood structural member
IPC: E04C2/12
Filed: 1972-02-16
Abstract: 1316557 Forms of wood S W LINDAL 16 Feb 1972 [26 Feb 1971] 7259/72 Heading B5L [Also in Division E1] Segmental section logs 10 the residue of a planking operation are used to form walls, roofs, or floors of a building or log cabin. The segmental logs are formed with grooves 14 extending longitudinally of the log and having a depth parallel to the plane face. The grooves are formed one on each opposite side of the log such that their shape and width is complementary to the longitudinally extending tongues 15 formed between one face of the groove and the planar surface. The logs may be joined to form a panel and planed on their curved surface to provide constant thickness. Planks or cladding panels may be fixed to each or either side of the log panels and the spaces may be filled with insulating material or used as service conduits.
Patent GB-697866-A (GB)
Title: Improvements relating to spring clips
IPC: D06F55/00
Filed: 1951-03-29
Abstract: 697,866. Spring clips. UNIVERSAL INJECTION PLASTICS, Ltd., and JOHNSTON, J. Jan. 30, 1952 [March 29, 1951], No. 7313/51. Class 44 In a spring clip of the kind comprising two parts 10 hinged together at a point intermediate their ends and held together by a U-shaped spring 17, the bend of the spring passes through an aperture in the operating limb of each part adjacent to the hinge, the free ends of the spring urging the gripping jaws together, and the hinge comprises a protuberance 12 on one part engaging in a recess 11 on the other. Preferably, as shown, the two parts are identical, each having a protuberance 12 on one side of the centre line and a recess 11 on the other.
Patent GB-836121-A (GB)
Title: Improvements relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/06
Filed: 1956-03-08
Abstract: 836,121. Stud and socket fasteners. F. T. PRODUCTS Ltd. March 6, 1957 [March 8, 1956], No. 7333/56. Classes 44 and 89(1) A fastener for securing a rod-like member in an apertured panel, comprises a single strip of spring metal bent to U- shape having a web. a pair of limbs 20, 21 with their free ends bent outwardly to form a pair of feet 24, 25 an outwardly directed prong in each limb and an inwardly directed knee or lug in at least one of its limbs, the or each knee or lug extending over a major portion of the transverse width of the limb and the edge of each prong adjacent a foot sloping outwardly of the U and away from the foot. The embodiment shown in Fig. 2 has inwardly directed lugs 31, 31a in each limb for engaging the stud; these may have sharp straight edges as shown for engaging a stud of rectangular cross-section. In a modification sharply pointed prongs are used. When the stud is of circular cross-section the nose of each lug can be made part circular. Two outwardly directed prongs 26, 27, 26a, 27a are formed in each limb and when the fastener is passed through the aperture in the panel the feet engage one side of the panel and the prongs the other side. When the fastener is provided with knees in each limb as shown in Fig 9 the limbs are bent inwardly to provide the knees 43. This embodiment is provided with feet and prongs for engaging the panel as in the previous embodiment.
Patent GB-701290-A (GB)
Title: Improvements relating to methods of and means for atomizing liquids
IPC: B05B7/00
Filed: 1952-03-21
Abstract: 701,290. Spray-producers ; crop sprayers. INSTITUUT VOOR TUINBOUWTECHNIEK. March 21, 1952 [March 22, 1951], No. 7373/52. Class 69 (3) A liquid nozzle 24 is coaxially arranged in the conical end 26 of an air duct 25, and ejects a conical film 29 of liquid which subtends an angle of substantially 90 degrees with the direction of air flow in the conical end of the duct. The nozzle, Fig. 2, may comprise co-operating parts 30, 31 with a liquid feed pipe 23 supplying ducts 33 and passages 34 leading to grooves in a tapering surface 35 of the part 30. The grooves are tangential to a vortex chamber 36. Alternatively, the nozzle has an axial orifice and the liquid strikes a plate arranged in front of it. Fig. 6 shows the air duct within a second air duct 6, which is supplied with low pressure air from a fan 19, Fig. 7. A fan 18 supplies the inner duct, and the liquid is supplied from a reservoir 8 by a pump 17. A line 16 with a safety valve 15 returns liquid to the reservoir.
Patent GB-882563-A (GB)
Title: Improvements in indexing attachments for machine tools for making multinle screw threads
Inventor: WAGNER JOHANNES
IPC: B23G1/04
Filed: 1959-03-03
Abstract: 882,563. Screw-cutting lathes. GROSSDREHMASCHINENBAU 8. MAI. VEB. March 3, 1959, No. 7437/59. Class 83 (3). In a machine-tool for producing multi-start screw threads the headstock spindle 1 is indexed relatively to the lead-screw 20, for each thread, by a geared clutch 4, 9, driven through gears from the lead-screw 20. In operation one of the gears 10-12 on the cluster 9 splined on the shaft 3, is engaged with the corresponding gear 6-8 on the member 4, rotatable on and axially fixed to the shaft 3, by a rod 14, the gears chosen having teeth which are a multiple of the number of starts on the work. The first thread is cut, the clutch is disengaged, and the spindle 1 is turned to the position of the next start, using an indicator 16. The same gears of the clutch are re-engaged, and the next thread is cut, the operation being repeated for subsequent threads. The above method can be adopted for form relieving hob-cutters &c. by having the relieving cam driven from the spindle 1 and connected to the spindle 18 by gears 19 providing the number of threads is a factor of the number of slots in the hob. In the case where this factor does not apply, after the first set of teeth are backed off, the clutch is disengaged, the tool on the carriage 22 is then moved along the work to the position of the next set of teeth by rotating the lead screw 20 by the wheel 24, using the indicator 23, and the clutch is re-engaged. The rotation of the leadscrew also rotates the relieving cam (not shown) by means of gears 19.
Patent GB-312422-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B17/00
Filed: 1928-12-12
Abstract: 312,422. Fitzpatrick, H. D., (Naamlooze Vennootschap Kodowa Refrigerator Co.). Dec. 12, 1928. Refrigerating, absorption machines for.-A reversing machine including a generator-absorber 1, condenser 2, and liquid refrigerant storage tank 4 is provided with an evaporator comprising upper and lower headers 7, 6 connected by coils 13, the upper tank being connected by a pipe 8 with the generator-absorber.
Patent GB-702072-A (GB)
Title: Improvements in or relating to the production of hecogenin from plant material
Inventor: CALLOW ROBERT KENNETH
IPC: C07J75/00
Filed: 1951-04-02
Abstract: In the production of hecogenin, a material of the class of steroidal sapogenins and of possible use in the preparation of hormones, leaves or other material of the plant Agave Sisalana or related plants, e.g. sisal waste obtained after the extraction of the fibre, which may first be defatted by percolation with light petroleum, ether &c., is extracted with hot or cold alcohol, e.g. methyl or ethyl alcohol containing 0-50 per cent. water, a mineral acid is added to the extract to give a concentration of 1-2M, the mixture is refluxed, alcohol is removed, suitably by steam distillation, and an aqueous suspension produced, precipitated solids are separated and saponified by heating with alcoholic caustic alkali, alcohol is removed suitably by steam distillation, and hecogenin is recovered from the aqueous suspension.  Recovery is suitably effected by treating the suspension with an adsorbent such as charcoal, extracting the latter with ether, carbon tetrachloride, trichlorethylene, benzene, ethyl acetate &c. and crystallizing the hecogenin from the solution.  Residual material in the mother liquor is recovered by further fractional crystallization or by chromatography, e.g. on alumina.ALSO:In the production of hecogenin, a material of the class of steroidal sapogenins and of possible use in the preparation of hormones, leaves or other material of the plant Agave Sisalana or related plants, e.g. sisal waste obtained after the extraction of the fibre, which may first be defatted by percolation with light petroleum, ether, &c. is extracted with hot or cold alcohol, e.g. methyl or ethyl alcohol containing 0-50 per cent water, a mineral acid is added to the extract to give a concentration of 1-2M, the mixture is refluxed, alcohol is removed, suitably by steam distillation, and an aqueous suspension produced, precipitated solids are separated and saponified by heating with alcoholic caustic alkali, alcohol is removed suitably by steam distillation, and hecogenin is recovered from the aqueous suspension.  Recovery is suitable effected by treating the suspension with an adsorbent such as charcoal, extracting the latter with ether, carbon tetrachloride, trichlorethylene, benzene, ethyl acetate &c. and crystallizing the hecogenin from the solution.  Residual material in the mother liquor is recovered by further fractional crystallization or by chromatography, e.g. on alumina.
Patent GB-595338-A (GB)
Title: An improved manufacture of phenol-formaldehyde resinous compositions
IPC: C08J3/20
Filed: 1945-03-27
Abstract: Decolouration of pigmented phenolic moulding compositions on heating to cure the resin is prevented by incorporating a small amount of chlorinated diphenyl in the uncured composition, containing a heat reactive phenolic resin.  500 gs. of a one-stage resin produced as described in Specification 458,364, are mixed with 50 gs. chlorinated diphenyl and the mixture dyed with Coomassie Fast Blue 200 FF.  The mixture is used to impregnate paper &c. sheets which are laminated in known manner and then heated under pressure to set the resin.  Up to 50 per cent polyvinyl chloride may be incorporated in the composition. According to the Provisional Specification, chlorphenols or chloraromatic hydrocarbons may also be used.  Specification 351,637 also is referred to.
Patent GB-874388-A (GB)
Title: Improvements in the manufacture of fibres from thermoplastic materials, particularlyglass fibres
IPC: C03B37/04
Filed: 1960-03-04
Abstract: 874,388. Glass fibres, manufacture. COMPAGNIE DE SAINT-GOBAIN. March 4, 1960 [March 13, 1959], No. 7689/60. Addition to 788,491. Class 56. In a centrifugal apparatus for the production of glass fibres as in the parent case, the rotatable distributor member comprises a hollow body 4 disposed within the rotatable body 1 and coaxial with it and a distributer device 6, 10 or 13 for the molten material is arranged coaxially within the hollow body 4. As shown in Fig. 1, the device 6 comprises a core with increasing circular edges 7a, 7b, 7c. A series of circular plates may be used, also increasing in size downwardly or sets of radiating arms 10, which may be as shown in Fig. 5 or with each set directly over each other. A curved surface may be used, the device 13 in Fig. 7 having a convex surface, or a concave surface may be used. Reference has been directed by the Comptroller to Specification 828,648.