baber/WOPTO huggingface dataset:
Patent GB-639516-A (GB)
Title: Rotary take-ups for sewing machines
IPC: D05B49/04
Filed: 1948-08-11
Abstract: 639,516. Sewing-machines. SINGER MANUFACTURING CO. Aug. 11, 1948, No. 21161. Convention date, May 12. [Class 112] Lock-stitching by eyed needles.-A rotary take-up, for a machine having a rotary hook rotating more than once for each reciprocation of the needle, comprises a single thread-engaging element revolving at a varying radius about a driving shaft. The element is preferably carried by a planetary wheel revolving around a fixed sun wheel and means are provided to counteract rotation of the element about its own axis and to adjust the timing of the device in relation to the rotation of the hook. The take-up element is arranged to be at its minimum radius and minimum angular velocity when the needle is at its lowest point and at its maximum radius when the thread loop is passing between the bobbin-case and its rotation-restraining finger. In the form shown, a disc 57, fixed to a shaft 46 running at the same speed as the needle-bar shaft but placed above the latter, has a bearing 58 for the hub of a planetary gear 60 which runs round a fixed sun gear 54 of the same size. A plate 63 has a stem 62 non- rotatably secured in an axial bore 61 in the gear 60, and has an eccentric pin 66 forming a bearing for a sleeve 67 integral with a pinion 68, the plate 63 having a balance weight as shown ; the sleeve 67 projects through a cover 70 fixed to the plate 63, and the eyed thread-engaging element 45 has a pin 73 which fits frictionally in the bore of the sleeve. An internallytoothed ring 69, with a pitch diameter double that of the pinion 68 and meshing with the latter, is fixed in a seating 82 in the disc 57. The element 45, being in effect eccentrically-mounted on the gear 60, undergoes a cyclic variation of radius about the shaft 46 as the disc 57 carries it about that shaft, one cycle corresponding to one revolution of the disc ; the plate 63, during one such revolution, rotates on its axis through two revolutions relative to a fixed direction, but the pinion 68 is, during the same period, rotated by engagement with the ring 69, through two revolutions in the opposite direction relative to the plate 63 so that the element 45, carried by the pinion, does not rotate at all. The sun gear 54 is mounted rotatably on an extension 56 of a bearing 49 for the shaft 46, and is moved thereon, to adjust the timing of the device, by a finger-lever 50. The device is surrounded by a member C forming part of the machine frame, and a cover-plate 74, fitting in the member C and round the cover 70, is fixed to the disc 57. Rotation of the bobbin-case of the rotary hook is prevented by a bent-up lug projecting laterally from a finger fixed to one side of the machine bed (Fig. 11, not shown), Specification 639,530 is referred to.
Patent GB-179107-A (GB)
Title: Improvements in and relating to driving axles for automobiles
IPC: F16H48/08
Filed: 1921-08-10
Abstract: 179,107. Imray, O. Y., (Timken-Detroit Axle Co.). Aug. 10, 1921. Axles and axle structures.-The shaft 5 driving the differential gear through bevel-gearing is carried by a support 6 which is so secured to the rear-axle housing 7 that the mesh of the bevelgearing can be adjusted. The support 6 fits within an opening in the housing and is secured to the housing by bolts 17. A ring-nut 16 screws on the support and bears against the face of the housing, so that by slackening the bolts 17 and rotating the nut, the shaft 5 and its bevel pinion 4 can be adjusted relatively to the bevel wheel 3 and the housing. The inner end of the support 6 fits within a seat formed by a web 9 of the housing. The outer roller bearing 11 of the shaft 5 is adjusted by means of a sleeve 13, which screws into the support 6 and is locked by a catch 14.
Patent GB-643729-A (GB)
Title: Method of fairing the steps and chines of a hull, particularly applicable in connection with the hulls of seaplanes
IPC: B64C35/00
Filed: 1947-08-05
Abstract: 643,729. Hydroplanes. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-EST. Aug. 5, 1947, No. 21291. Convention date, Aug. 5, 1946. [Class 113 (ii)] A device for fairing a hull comprises a flexible element 1 arranged in the recessed portion BMC of the part to be faired. A suction and inflating device is connected to a conduit 2, whereby a vacuum may be created between the element 1 and the plating BMC to apply the element to the plating and the element may be inflated to the shape BNC to fair the recess.
Patent GB-422218-A (GB)
Title: Improvements in and relating to dynamos
IPC: H02K23/66
Filed: 1933-07-28
Abstract: 422,218. Dynamos. STEINER, G., 6, Schererstrasse, Solothurn, Switzerland. July 28, 1933, No. 21317. Convention date, July 28, 1932. [Class 35] Accessories, arrangement on machines.-The gearing for driving a cam which interrupts the ignition current is located in a recess in the commutator end bracket of a dynamo, whilst the interrupter with its adjusting device, condenser and a voltage regulator are arranged outside this recess but in a closed casing rotatably secured on said bracket. As shown, the interrupter, which is in circuit with a coil fed by the dynamo or a battery, is mounted on the member e fixed to a plate u angularly adjustable with respect to the plate v which is also angularly adjustable, for instance by means of a Bowden wire connected thereto. The dynamo casing b may be rotated about the shaft o<1> to tension the driving chain and to compensate for the relative shifting of the cam e caused thereby, the plate u is turned relatively to the plate v. The field coil connections terminate in banana plugs which are received in plugs in the bracket a and one of them is thereby connected to resistances controlled by the vibratory voltage regulator.
Patent GB-315870-A (GB)
Title: Improvements in or relating to the manufacture of resinous condensation products
IPC: C08L61/10
Filed: 1929-07-11
Abstract: 315,870. Varnol Chemical Corporation, (Assignees of Rosenblum, I.). July 21, 1928, [Convention date]. Synthetic resins.-Phenol aldehyde or phenolketone condensates are reacted with compounds, such as glyceryl mono- and di-abietates, formed by partially esterifying polyhydric alcohols, such as glycerol or mannitol, with acids of a resinous nature. The products are fusible resins which are substantially neutral, soluble in drying oils, and suitable for use in the manufacture of varnishes. The phenol-aldehyde or phenol-ketone condensate is prepared in known manner, preferably in the presence of a solvent, for example, turpentine, drying or non-drying oils, natural or synthetic resins, resin esters, or mixtures of these solvents, and may be dehydrated at temperatures up to 120‹ C. Phenols specified are phenol and cresol, and a mixture of phenol and cresol may be employed. Aldehydes and ketones specified are formaldehyde, acetaldehyde, and acetone; mixtures of an aldehyde and a ketone may be employed. The partially esterified compound may be prepared by treating a polyhydric alcohol in known manner with colophony, congo, manila, pontiac, shellac, kauri, copal, or other fossil resins; and it may be dissolved in a suitable solvent, for example, a natural resin or a resin ester such as glyceryl triabietate, before it is reacted with the phenol-aldehyde c;r phenolketone condensate. The latter reaction is carried out at ordinary, reduced, or increased pressure, if desired in presence of excess of the polyhydric alcohol, and at temperatures of from 250‹ to 300‹ C. Examples are given.
Patent GB-445324-A (GB)
Title: The manufacture of ergometrinine, a new alkaloid of ergot
IPC: C07D457/06
Filed: 1935-07-29
Abstract: Ergometrinine, a new alkaloid of ergot, is isolated by rendering alkaline an aqueous acid solution of the total alkaloids of ergot, extracting the resulting precipitate with water or aqueous mineral acid, adding alkali and filtering, and finally extracting the filtrate fractionally with chloroform and evaporating to dryness. The crude product is purified by extracting it with benzene or benzene homologue and/or by trituration with acetone; alternatively, it is selectively extracted with dilute acid in stages, the first extracts made alkaline, and the filtrate then extracted with chloroform and evaporated to dryness.  The product is finally purified by crystallization from acetone, methyl alcohol, ethyl alcohol, or mixtures thereof with water, or from benzene or chloroform. Specifications 140,056, 286,400, [both in Class 2 (iii)], 388,529, and 445,325 are referred to.
Patent GB-292803-A (GB)
Title: Improved device for removing the valves from internal combustion engines
IPC: B25B27/26
Filed: 1927-08-16
Abstract: 292,803. Neal, D. Aug. 16, 1927. Prizing-tools.-A device for compressing valve springs of detachable cylinder heads of internal combustion engines comprises a base 2 bolted to a sloping block 5 the face of which is set to abut against the valve head, the base being provided with a slot b into which is fixed a detachable arm 7 on which is adjustably pivoted a lever 9 with forked end 9<a> to take under the washer of the spring. The base 2 may be secured in a vice by an integral projection 2d or by the bolt head 4. A slot x allows adjustment of the bolt 5 for larger or smaller cylinder heads. For valves fixed with their spindles vertical as in motor car engines, the block 5 is flat faced and the lever 7 is reversed to fit vertically into the slot b.
Patent GB-1380147-A (GB)
Title: Control systems for electrical motors
IPC: B60L9/12
Filed: 1972-05-09
Abstract: 1380147 Control of several DC motors MOSKOVSKY ORDENA LENINA I ORDENA TRUDOVOGO KRASNOGO ZNAMENI INSTITUT INZHENEROV ZHELEZNODOROZHNOGO TRANSPORTA and TALLINSKY ELEKTROTEKHNICHESKY ZAVOD IMENI MI TALLIN-1 KALININA USSR 9 May 1972 21558/72 Heading H2J  A control system for the D.C. driving motors of an electric train comprises a step-down transformer 1 whose primary winding 2 is energized via a current collector 4 and whose secondary winding consists of sections 7 ... 10 respectively controlled by contactors 12, 13, 14 and thyristors 15, 16 to supply a rectifier 11 which feeds two groups 18, 19 of series traction motors, the groups being interconnected by resistors 30, 31 and a contactor 32 and each group being controlled by a respective contactor 24, 29. When operating in the driving mode, contactors 24, 29 are closed and contactor 32 is open so that the armatures 20, 21, 25, 26 and field windings 22, 23, 27, 28 receive the output voltage of the rectifier 11, which voltage is varied from zero to a maximum value by successive closure of the contactors 12, 13, 14 and variation of the firing angle of the thyristors 15, 16. After the maximum voltage has been reached, further speed increase may be obtained by decreasing the value of resistors 30, 31 to vary the current through the field windings 22, 23, 27, 28. When braking is required, the contactors 12, 13, 14, 24 and 29 are opened, the thyristors 15, 16 are made non-conductive, the contactor 32 is closed and the firing angle of the thyristors 15, 16 is then gradually increased. The motors then operate as separately-excited generators, whose armatures are loaded by the resistors 30, 31 and whose field windings are controlled by the thyristors 15, 16, control of which provides regulation of the braking force. Such a control system may be conventional and provide stabilization of the braking characteristics. Alternatively, this stabilization can be achieved by inserting, in each motor group and between the members 21, 22 and 25, 28, a stabilizing rheostat (33, 34) shunted by a contactor (35, 36), Fig. 2 (not shown), the contactors (35, 36) being opened during the braking condition so that the rheostats (33, 34) carry both the field and armature current, variation of the latter producing an automatic compensating variation of the field current. Normally, the contactors (35, 36) are closed during driving, but may be left open for a certain time during starting to allow the rheostats (33, 34) to be adjusted to decrease the initial current surge and the resultant jerk of the train. Members 1, 11 may be replaced by an equivalent circuit using solid state controlled rectifier devices.
Patent GB-203489-A (GB)
Title: A safety device for use with electrical precipitation apparatus
IPC: B03C3/72
Filed: 1922-08-08
Abstract: 203,489. Lodge, L., and Lodge-Cottrell, Ltd. Aug. 8, 1922. High - potential switches; handles; cases. - A safety device for use with an electric precipitator comprises a switch adapted to receive a key used for unlocking the inspection doors of the precipitator, the switch being arranged so that when the key is removed from it the precipitator is put out of action. In one arrangement the key h, when not in use for unlocking the doors is inserted in a device g and operated so as to raise a rod f and an arm a which otherwise connects the highpressure electrode e to earth. A lamp may be automatically lit or other indication given when the key is removed from the device g. The locks on the inspection doors are preferably such that the key can be withdrawn only when the doors have been closed and locked. In a modification, the rod f is insulated from the arm a, which in this case is raised so as to open the high-pressure supply circuit when the key is turned into position for removal from the device g; in addition, the rod may connect the high-pressure electrode to earth.
Patent GB-1189049-A (GB)
Title: Process for the Production of Aminonitriles
IPC: C07C255/24
Filed: 1968-05-07
Abstract: 1,189,049. Preparation of aminonitriles. W. R. GRACE & CO. 7 May, 1968 [8 May, 1967], No. 21644/68. Heading C2C. Aminonitriles are prepared by reacting ammonia, a primary or secondary amine, formaldehyde and HCN, or by reacting an ammoniaformaldehyde or amine-formaldehyde condensation product, HCN, and if stoichiometrically required, formaldehyde, in which the reaction is carried out in an aqueous reaction medium containing an acid, at a temperature of 0-130 C., under autogenous pressure, and under conditions such that over the whole of the reaction time, there is substantially no net transfer of heat to or from the reaction mixture. These aminonitriles can be readily hydrolysed to form the corresponding amino acids, e.g. by treatment with sodium hydroxide at temperatures of from 10 to 100 C. The preparation of ethylenediamine tetracetic acid is referred to.
Patent GB-837984-A (GB)
Title: Improvements relating to conveyor belting and like continuous material
Inventor: CLEGG ROBERT VERNON
IPC: B29D29/00
Filed: 1958-06-18
Abstract: 837,984. Coated fabrics. MOSELEY & SONS Ltd., D. June 18, 1958 [July 9, 1957], No. 21649/57. Drawings to Specification. Class 140. The build-up of static electricity in a belt or sheet made of material of relatively low conductivity by the provision as a printed pattern of a controlled leakage path of higher relative conductivity and having continuity in at least one direction. The leakage path may be printed on one of the abutting interior faces of a built-up material comprising a laminated carcase and a cover. The ink or paste to be printed may contain conductive carbon, graphite or metallic powder, together with a binder and plasticizer. If desired, the carcase may be coated with polyvinyl chloride, the openwork pattern may be printed thereon and the normal outer polyvinyl chloride layer applied thereto. Specification 837,983 is referred to.
Patent GB-769025-A (GB)
Title: Improvements in or relating to diaphragm assemblies
Inventor: COOK HENRY
IPC: F16J3/02
Filed: 1954-07-24
Abstract: 769,025. Diaphragm pistons. ROLLSROYCE, Ltd. July 25, 1955 [July 24, 1954], No. 21677/54. Class 122 (1). A diaphragm assembly comprises a diaphragm 13 secured at its periphery between rings 11 and 12 clamped by a member 14 that divides the body 10 of the assembly into two chambers 17 and 18, a diaphragm rod 27 separate from the diaphragm and mounted for axial movement in widely-spaced bearings 26, and 28, and resilient means 34 for maintaining the rod in contact with the diaphragm. As shown applied to a flow metering unit, the diaphragm rod is formed with a needle valve 37 co-operating with an orifice 20 between the chambers 17 and 18 and the rod passes with clearance through an aperture in the diaphragm; where the diaphragm is of soft rubber or similar material, the aperture is bounded by a rigid ring comprising a part 31a in threaded engagement with a part 31b. A flange 33 on the rod bears on the ring 31a under the force of the spring 34 and a flanged sealing ring 35 prevents leakage through the clearance between the rod and ring 31a. An inlet pipe 21 communicates with the chamber 17 and an outlet pipe 23 with the chamber 18 and the chamber 18 may be interconnected by a conduit 38 with a chamber 36 above the diaphragm so that the pressure difference across the diaphragm is equal to the pressure difference across the orifice 20. The position of the valve 37 will depend on the pressure difference across the diaphragm and the rate of the spring 34 and the rate of flow from inlet 21 to outlet 23 will depend on the position and profile of the valve. If the pressure in chamber 36 is arranged to be higher than the pressure in chamber 17, an additional spring is fitted between the ring 31b and a spider member 25 and the sealing ring 35 will have its radial flange directed outwards. The member 25 may be imperforate, thus dividing the chamber 17 into two separate chambers which may be at different pressures.
Patent GB-270145-A (GB)
Title: Improvements in and relating to hydraulic speed controlling couplings
IPC: F16D31/02
Filed: 1926-09-03
Abstract: 270,145. Mattia, P. Sept. 3, 1926. Clutches and speed-varying mechanism.-In a radial-cylinder hydraulic coupling, each cylinder is connected to an extensible reservoir 11 formed of rubber or two telescopic cylinders, and con. trolling-valves in conduits 10 are operated by cables 28 from a slidable member 30.
Patent GB-1274663-A (GB)
Title: Improved apparatus for games
Inventor: BAYLEY RALPH MYTTON
IPC: A63F7/00
Filed: 1968-05-08
Abstract: 1,274,663. Ball game and practice appliances. R. M. BAYLEY. 8 May, 1969 [8 May, 1968], No. 21854/68. Heading A6D. Apparatus for use in playing a ball game comprises two opposed members spaced to define a lane along which a ball may pass and a ramp member to impede ball movement, extending across the lane from one member to the other, the members and ramp being formed by a single elongated U-shaped member; e.g. a wire, and either a stop member extending across the lane between the members from which a ball of too great momentum will rebound over the ramp or a second ramp member over which the ball will pass if the ball has too great momentum. As shown in Fig. 3, the lanes are formed by opposed members 33, 34, 35, and 36 extending outwardly from a cylindrical stop member 30, and the ramps by the portion of the wire connecting opposed members. In a modification of this embodiment the stop member is a quadrant of a cylinder with a strip of beading along its top edge. In another embodiment, see Fig. 1, the apparatus comprises a platform 10, mounted on block 19, and including eight lanes 15, each defined by opposed members 17 and 18 which are integrally united by ramps 23 extending across the lanes and which impedes the movement of a ball along the lanes. An extended side surface of platform 10, functions as a second ramp. The apparatus may be used as a golf practice device, a game, of which several are described, or teaching aid, and the ball may be propelled by hand, or a striking article such as a golf club or croquet mallet.
Patent GB-1477483-A (GB)
Title: Dry electrostatic developer mix
IPC: G03G9/08
Filed: 1974-05-16
Abstract: 1477483 Electrographic developers ADDRESSOGRAPH MULTIGRAPH CORP 16 May 1974 [23 May 1973] 21912/74 Heading G2H The fatigue resistant properties of a dry developer comprising a mixture of carrier particles and pigmented thermoplastic resin toner particles are enhanced by including in the mixture 0.005 to 1.0 wt. per cent, based on the weight of the carrier particles of MoS 2 , TiS 2 , WS 2  or graphite. The carrier particles may be formed of ferro-magnetic materials such as Fe, Ni, Co or their alloys, or ferrite compounds, or of non-magnetic materials such as glass beads.
Patent GB-732950-A (GB)
Title: Fluid pressure operated self-energising brake mechanism particularly for vehicles
IPC: F16D65/14
Filed: 1953-08-08
Abstract: 732,950. Disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Aug. 8, 1953, No. 21953/53. Class 103 (1). In a disc brake comprising primary actuator cylinders 47c wherein pads are engaged with the opposite sides of the disc 38, so that the frictional action therewith causes movement of the housing 42 whereby a piston 50 in a cylinder 49 integral with the housing is caused to pressurize secondary cylinders 47a and 47b by reaction from a fixed lug 48, a valve 111 automatically releases pressure from the secondary cylinders 47a and 47b into the primary cylinder 47c when the pressure in the latter is released. The valve includes an axial passage which is cut off from a passage leading to the secondary cylinder when the valve is moved against a spring by pressurisation of the primary cylinder. Fig. 3 shows an embodiment of the invention wherein movement of the torque member 58 by pressurisation of primary cylinder 113a causes operation of the secondary cylinders 113b, 112a and 112b for either direction of rotation of the member 58 through a double ended servocylinder 114. Specifications 580,878 and 688,382 are referred to.
Patent GB-447460-A (GB)
Title: Method and product for producing gas tight seals in the pistons of internal conbustion engines
IPC: F16J9/00
Filed: 1935-08-02
Abstract: 447,460. Piston - packing. BRINKER, H. S., 1001, Sherman Street, and THOMAS, W. B., 1351, Grant Street, both in Denver, Colorado, U.S.A. Aug. 2, 1935, No. 22001. [Class 122 (i)] In order to seal worn piston-rings and grooves in an internal-combustion engine, a paste is employed made of vermiculite which exfoliates and expands when heated. Roasted, i.e. exfoliated vermiculite is mixed with the unexfoliated vermiculite and the mixture is made into a paste with mineral oil containng 5 per cent of penetrating oil. The paste when introduced into an engine cylinder fills the gaps in the packing-ring grooves and expands when the engine becomes hot.
Patent GB-1144149-A (GB)
Title: A shoe, especially a child's shoe, with an outer sole made of plastics material or rubber
IPC: A43B13/32
Filed: 1966-05-18
Abstract: 1,144,149. Boots &c. E. SAILER. 18 May, 1966 [18 May, 1965; 13 April, 1966], No. 22070/66. Heading A3B. A ventilated shoe with an outer sole 1 of rubber or plastics material has a part made of material which allows the passage of air in the sole and which connects the interior of the shoe with the outer air. In a first embodiment (Fig. 1) a shoe consisting of an upper 5, an outer sole 1 and an air permeable insole 6 e.g. of textile material has, in the ball region of the sole, a layer of leather 2 covered by an air permeable part 3 e.g. of felt or cork. The parts 2, 3 are incorporated in the sole 1 when the sole is moulded directly on to the shoe bottom e.g. by injection or vulcanization. In a second embodiment (Fig. 6, not shown) the outer sole consists of a solid layer of rubber or plastics material which is covered by a grid formed by intersecting walls and which is formed when the sole is moulded. At the ball of the foot the solid layer is formed by a piece of leather to allow the passage of air, the leather being covered by the grid.