baber/WOPTO huggingface dataset:
Patent GB-291430-A (GB)
Title: An improved repetition device for talking machine records
IPC: G11B3/095
Filed: 1928-03-08
Abstract: 291,430. Maykemper, J. H. June 4, 1927, [Convention date]. Repeating appliances. - Relates to devicee for automatically repeating the playing of a disc record, such a device comprising a member adapted to be placed upon the record, so as to turn therewith, and having a cam groove or track into which the needle enters at the end of the record and by which it is returned to the starting position. Acccording to the invention, the track 8 in the repeating-appliances is bordered by curved ridges or rails 10, rising gradually, relatively to the plane of the record, in a semicircular formation from the point 11 to the point 9, then extending in an eccentric semi circle of greater radius, and at a uniform height, from the point 9 to the point 13, and then descending to the plane of the record from 13 to 14. The track is an open slot along the portion shown blackened frorn 13 to 9, the straight portion 14, 11 being the part along which the needle moves during playing. At the end of the playing, the sound-box rides up the rails 10, and the repeating appliance, being then free to rotate, causes the sound-box to be carried along the rails 10 back to the starting point 11. During this movement, the needle is supported between the rails so that its point is kept out of contact with the bottom of the track. The device is supported on the record by three felt or like pads 5 - - 7, the pad 5 fitting over the turntable spindle.
Patent GB-726102-A (GB)
Title: Improvements relating to electric motors
IPC: H02K1/26
Filed: 1953-03-17
Abstract: 726,102. Reducing noise in electric motors. HOOVER, Ltd. March 17, 1953 [March 19, 1952], No. 7284/53. Class 35. Noise is reduced in an electric motor having an odd number of armature winding slots 8, by the use of shallow unwound slots 19 of substantially the same mouth width situated between them. The slots 19 may be drilled or milled out or filled with lead weights for balancing.
Patent GB-819938-A (GB)
Title: Improvements in or relating to on-load tap-changing arrangements for electric transformers
Inventor: BOOKER FRANK
IPC: H01H9/00
Filed: 1957-03-05
Abstract: 819,938. Regulating switches. GENERAL ELECTRIC CO. Ltd. March 3, 1958 [March 5, 1957], No. 7309/57. Class 38 (5). The diverter switches 4 of a transformer onload tap-changer are operated in the desired sequence by eccentrics 7 mounted on a common operating shaft 8. As shown, the eccentrics have a 90-degree angular displacement so that the switches operate in the correct sequence for the tap-changing arrangement described in Specification 808,515, [Group XXXV]. Thus, from the position shown, a 90-degree clockwise rotation of the shaft 8 causes switch 4A to close and switch 4B to remain closed; a further 45-degree rotation causes switch 4B to open and switch 4A to remain closed; a still further 45-degree rotaton causes switch 4C to close and switch 4B to remain open. The next tap change is effected by rotating the shaft anti-clockwise.
Patent GB-671351-A (GB)
Title: Variable speed hydraulic clutches
IPC: F16D31/04
Filed: 1949-03-17
Abstract: 671,351. Gear pumps. DEHN, S. G. (Thomas Hydraulic Speed Controls, Inc.). March 17, 1949, No. 7341/49. Class 110(ii) [Also in Group XXIX] In a gear pump which forms part of a variable speed hydraulic coupling (see Group XXIX) the parallel faces of each gear are recessed (37A planet gear, 38A sun gear) to reduce drag torque. The width of the peripheral face 38B, Fig. 2, must be substantially equal to the thickness of the 'gear tooth at the pitch line' Df the sun gear and that of the faces 37B of the planet gears must be substantially equal to half the thickness of the gear tooth at the pitch line of the planet gear.
Patent GB-176810-A (GB)
Title: Improvements in hydraulic governors
IPC: F03B15/18
Filed: 1922-03-13
Abstract: 176,810. Poebing, O. March 11, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Fluid-actuated valves.--The flow of water from a reservoir to consuming apparatus is regulated by means cf an energy destroyer, arranged in a conduit connected to the supply in front of the consuming apparatus, provided with a sluice adapted to be opened by the overflowing water when a predetermined level in the reservoir is exceeded. Water is supplied to the consuming apparatus, such as a turbine, from an elevated tank a by means of a pipe W having a connection V leading to an energy-destroying device comprising a casing t having a rotatable ring x provided with holes y adapted to register with holes z in the casing, the position of the ring changing with variation in the load and speed of the turbine. Mounted within the casing t is a cylinder q, operated by a pivoted lever l, having a series of ports r opening into the annular chamber s thus formed in the casing and normally closed by a valve p. The wall of the reservoir a is provided with a weir b leading to a chamber c, and water overflowing into this chamber will flow through a pipe d to a cylinder e provided with a spring-operated plunger g connected to the lever l. The governor ring x is normally in operaticn. but if the inflow of water to the reservoir exceeds the predetermined level, the plunger g will be depressed and the valve p raised thus opening the ports r and allowing additional water to flow from the chamber s. The cylinder e also has a discharge pipe i which may be closed by a valve h,
Patent GB-815027-A (GB)
Title: A machine for compressing cosmetic powder into a cake in a godet
Inventor: BRIERLEY KENNETH
IPC: B30B15/00
Filed: 1957-03-06
Abstract: 815,027. Powder compressing machines. ALITE MACHINES Ltd. March 6, 1957, No. 7408/57. Class 87(2). A table 3 includes a bore 4 with a vertical axis along which a compression plunger 13 carrying a godet 12 filled with cosmetic powder is movable, a movable block 6 closing the upper end of the bore so as to obtain compression of the powder when the plunger is raised. A first layer of paper is arranged across the closing face of the block 6 to permit passage of air normal to its surface but not powder when this is compressed and a second layer of porous woven material is disposed between the paper and the block 6 to support the first layer and to allow lateral escape of air forced through the paper. For this purpose there is provided a feed roller 15 and a take-up roller 16, a strip 17 of nylon fabric passing from one to the other via the surface of the block 6. Similarly the paper layer is fed in the form of a strip 18 from a feed roller 19 to a take-up roller 20. As the paper strip tends to be damaged at each compression, a chain 21 which is reciprocated in synchronism with the plunger 14 passes about a sprocket wheel to a tension spring 23, the sprocket wheel being coupled by a uni-directional drive, e.g. a pawl and ratchet wheel device, to the take-up roller 20 which is thus turned sufficiently at each compression to bring a fresh portion of the paper strip 18 into position under block 6. The nylon strip 17 can stand up to a large number of compressions before it becomes damaged and hence need only be shifted from time to time by turning the take-up roller 16.
Patent GB-503652-A (GB)
Title: Improvements in turbo-machines for the compression or displacement of fluids
IPC: F04D17/02
Filed: 1938-03-10
Abstract: 503,652. Centrifugal blowers. SZYD. LOWSKI, J., and PLANIOL, A. P. E. March 10, 1938, No. 7474. Convention date, March 10, 1937. [Class 110 (i)] A centrifugal blower with adjustable inlet guide vanes has a single inlet and the rotor carries on the suction side of the impeller blades 1b, Fig. 7, a set of blades 2a .. 2c to impart considerable deviation to the inlet fluid without shock or separation. The inlet vanes 7 are mounted on a pivot axis 5 and may be controlled by hand or automatically; additional vanes 7a, 7b may be carried by a movable frame 8, vanes 7a imparting a negative component of rotation to the fluid, vanes. 7b a positive component, and vanes 7 no component. The blades 2a . 2c are spaced so that the fluid stream from any blade in one set passes between two blades of the following set and.their edges may be connected by a rim. Each set of blades may consist of blades 9, Fig. 11, 'of light metal with prismatic bases 10 clamped around the shaft 12 by steel hoops 11 preferably shrunk on. When the blower is used as a supercharger, the inlet vanes 7 may replace the butterfly valve of the carburetter. Outlet guide vanes may be used, as described in Specification 484,373.
Patent GB-1036249-A (GB)
Title: Improvements in or relating to electric switching systems
Inventor: BURROWS CHRISTOPHER EDWIN
IPC: H03K19/177
Filed: 1964-02-22
Abstract: 1,036,249. Selective signalling. HONEYWELL CONTROLS Ltd. April 20, 1965 [Feb. 22, 1964], No. 7498/64. Heading G4H. A programme-controlled switching magnet comprises a plurality of relay switching trees, each tree having a group of its branch connections connected in common with an equal number of branch connections of another tree. Thus if a connection to one branch connection is established through one tree a connection to another branch connection in the same group can be established via the other tree. In the embodiment described, the relay trees are arranged in groups, and a punched tape store provides address signals to select the relay groups and control signals to control the relay switches.
Patent GB-1223352-A (GB)
Title: Document feeding mechanism
Inventor: SAHLEY LLOYD W
IPC: B65H5/06
Filed: 1968-02-16
Abstract: 1,223,352. Feeding and delivering sheets. EASTMAN KODAK CO. 16 Feb., 1968 [21 Feb., 1967], No. 7618/68. Heading B8R. Documents M, Fig. 2, are inserted in a pile on a tray 22 when a plate 25 is raised by a solenoid C, and the plate pressed on to the pile by springs 27. The documents are then fed in succession from the bottom of the pile by friction rollers 28 and fan over a gate 38 and under feed rollers 44 and guides 66 to a copying position over a window 14 of a photo-copying machine, thereafter being delivered over a gate 38a and by rollers 51 on to a similar tray 22a. If further copies are required, the gate 38a is lowered and the gate 38 raised, and the documents are fed back to the tray 22, this process continuing until the desired member of copies have been made. In another form, the gates are omitted, and the trays are raised to be level with the window for feeding thereto and lowered for delivery, also by solenoids.
Patent GB-746316-A (GB)
Title: Improvements in or relating to surface wave transmission lines
Inventor: CHIRON BERNARD
IPC: H01P1/02
Filed: 1954-03-16
Abstract: 746,316. Surface-wave lines. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. March 16, 1954 [May 21, 1953], No. 7686/54. Class 40 (8). Losses at a bend in a surface transmission line 3 of the type comprising a dielectric-coated conductor are minimized by means of a mass 6 of dielectric situated on the inside of the bend. The mass may be in the form of a grooved circular or elliptical pulley or a segment of a pulley. The width of the groove is preferably equal to the diameter of the line and the thickness of the pulley equal to twice this diameter. The losses at the bend are due to the path difference in waves travelling around the inside and outside of the bend. By adjusting the permittivity of the mass 6 the resultant phase displacement can be cancelled out. The smaller the radius R of the bend, the greater will be the permittivity of the mass 6. As a first approximation for radii of curvature close to 100 mm. the permittivity of the mass may be made equal to that of the dielectric coating on the line. The Specification gives the dimensions of a system using a conductor coated with polyethylene bent around a polystyrol pulley.
Patent GB-106158-A (GB)
Title: Improved Method of and Means for Cutting and Marking Scales.
Inventor: FOUNTAIN FRANK HERBERT
IPC: B44B3/02
Filed: 1916-05-31
Abstract: 106,158. Fountain, F. H., and Fountain, F. W. May 31, 1916. Dividing-engines.-In an apparatus for dividing logarithmic and other scales, the blanks to be cut are mounted on a carrier adapted to be moved relatively to the cutting or marking tool, which is mounted on an adjustable slide. Fig. 2 shows a form in which the carrier comprises a plate 1 sliding in guides, counterbalanced by means of a weight 5 and reciprocated by means of a pinion on a shaft 9 driven by belt gearing from the handle 14. On the plate 1 is a board 1<a> on which the scales to be cut are clamped by means of clamps 15 and screws 16, Fig. 8. The tool is mounted on a compound slide rest provided with a microscope 23 by which the tool may be exactly adjusted to a pattern 24 which may either by carried on the carrier 1<a> or mounted on the bed of the apparatus as shown at 24, Fig. 5. Fig. 5 shows a rotary carrier for the scales in which they are clamped to a wood-faced drum 25 rotated by worm-gear 27. The tool is preferably provided with a depth gauge.
Patent GB-1027983-A (GB)
Title: Rotary piston machines
IPC: F02B55/04
Filed: 1964-02-25
Abstract: 1,027,983. Rotary piston I.C. engines. NSU MOTORENWERKE A.G. and WANKEL G.m.b.H. Feb. 25, 1964 [March 7, 1963], No. 7736/64. Addition to 984,773. Heading F1F. The rotary-piston I.C. engine claimed in the parent specification is improved or modified in that inlet and outlet openings 20, 21 (Fig. 1, not shown) for the coolant in each cavity 12 within the piston 7 are situated remote from the axially-extending boundary walls 13 of the cavity so that a proportion of the coolant supplied to the cavity remains therein when the cavity is periodically discharged (Fig. 4, not shown) and reduces the overall rate of flow of coolant through the interior of the piston. The engine may be further modified in that each inlet opening 20 is situated at the same radial distance from the axis of rotation M 2  of the piston as the associated outlet opening 21 so that when each cavity is discharged a proportion of the coolant therein flows back down the corresponding inlet passage 22 into an annular inlet chamber 14 for the coolant which is located between the end face 7a of the piston and the adjacent end wall 1 of the engine housing. The engine may be even further modified in that some of the cavities do not include an outlet opening 21, the coolant being periodically returned to the chamber 14 through the inlet opening 20. The discharge of each cavity is effected by acceleration forces acting on the coolant due to the planetary motion of the piston.
Patent GB-855335-A (GB)
Title: Hydraulic power-assisted steering system
IPC: B62D5/08
Filed: 1957-03-08
Abstract: 855,335. Vehicle power steering. TEVES, H., TEVES, E. A., and TAUSEND, M., [trading as TEVES MASCHINEN-UND ARMATURENFABRIK KOMM.-GES., A.]. March 8, 1957 [April 19, 1956], No. 7804/57. Class 79(5). A hydraulic system for power assisted steering comprises a reservoir 12, a pump 13, a fluid pressure accumulator 14, a servomotor 15 and a control valve 22 which is interposed between pump and servomotor and pump and accumulator and is axially displaceable in one direction or the other to admit fluid to one side or the other respectively of the servomotor and is further displaceable in the same direction to admit fluid from the accumulator to the same side of the servomotor. A steering shaft 1 connects with the control valve spool 58' at 58a and also, mechanically, with a drop-arm 6. A shaft 8 connects the droparm 6 with a piston 9 and passes right through the servo cylinder to pivot it on the chassis 10. The control valve assembly (Fig. 3) includes a non-return valve 26, a charging valve 24 and a regulating valve 33. Fluid from pump 13 enters at 20, and passes through the chamber 42, along a conduit 45 or 46 to the servomotor 15 whenever the spool 58 is displaced from its neutral position. If the accumulator pressure is low the fluid, on its return, displaces a slide-valve 31 off a seating 30 on the body of the charging valve 24 and flows out at 63 to the accumulator 14. If the accumulator is fully charged its pressure holds the valve 31 closed and the returning fluid lifts the valve 24 off its seating 29, against a strong spring 61, raises an annular non- return valve 32 and flows out at 25 to the reservoir 12. A channel 38 passes through the head of the valve 33 so that its upper and lower faces are both at accumulator pressure and a channel from outlet 25 exposes the underside of its flange 70 to the same pressure as the chamber 42. The valve 33 is thereby subjected to the pressure difference between the pump and accumulator systems and tends to move against a spring 34 of adjustable load to regulate the flow of pressure fluid into a conduit 37 connecting the accumulator to the valve 22. When the spool 58 is moved by turning the shaft 1, the central chamber 42 connects at first only with conduits 45 and 46. Further movement of the spool exposes chambers 39 and 40 to the conduit 37 so that fluid flows from the accumulator through a channel 41 inside the spool 58 to reinforce the pump pressure in the chamber 42. Owing to the valve 33 this auxiliary force is available even when the accumulator is not at pressure. A slidable bush 48 has chambers 49 and 50 which connect with conduits 45 and 46 and co-operates with a collar 53 fixed on the spool to balance unequal pressures due to the endfaces of the spool. Springs 56, 57 serve to centralise the bush. Outlets 65 permit fluid pressure to be taken off to operate ancillary equipment.
Patent GB-181787-A (GB)
Title: Method for the utilisation of waste heat
IPC: F22B1/04
Filed: 1921-03-12
Abstract: 181,787. Metallbank und Metallurgische Ges., Akt.-Ges., and Gensecke, W. March 12, 1921. Generating by hot slag, by indirect contact of steam, and by reduction of pressure of heated water.-Waste heat from technical processes is transferred by direct contact to water which is then passed to a vessel in which clean steam is generated by reduction of pressure. In the example shown molten slag is poured at q into water in a tank r. Vapours rising are condensed by a spray introduced at u. The heated water is pumped to the vessel c<11> where steam is generated under reduced pressure for driving an engine f<1>, the water being returned to the spray u. Make-up water enters at u<1> and granulated slag is removed by the conveyer t.
Patent GB-1121337-A (GB)
Title: Seat assembly
IPC: B60N2/02
Filed: 1967-02-20
Abstract: 1,121,337. Adjustable seats. LEAR SIEGLER Inc. 20 Feb., 1967 [23 Feb., 1966], No. 7953/67. Heading A4J. [Also in Division B8] In a vehicle seat assembly, the front and rear of a seat are supported, for independent vertical adjustment, by jack assemblies, each having two groups of inverted channel section elements 44, 46, which, in the lowermost position, interpenetrate one another in closely nesting formation (Figs. 2 and 3, not shown). On operating screw 68 by means of electric motor (78), the groups are separated by the oblique displacement of the lowermost element 46 along the line of action of the screw. The interaction of interengaging oblique internal ribs 60 and external grooves 62 (which inter-connect adjacent elements) with the interengaging vertical internal ribs 52, 56 and external grooves (54, 58) (which interconnect alternate elements) produces an equal vertical spacing between each pair of elements.
Patent GB-874595-A (GB)
Title: Improvements in or relating to apparatus for dispensing liquids
IPC: G01F11/02
Filed: 1959-03-07
Abstract: 874,595. Reciprocating pumps. HILL, S. D. March 7, 1960 [March 7, 1959], No. 7960/59. Class 102(1). Liquid dispensing apparatus, comprises a drum 1, Fig. 1, over which completely fits a cover 6 having an upstanding portion 8 through which horizontally extends a pump 16, Fig. 3, having a piston 28 formed with a pair of ports 29 controlled by a spring-loaded plate valve 30. The piston-rod 23 extending through a gland 22 is manually-actuated by a lever 51 pivoted to the cover below the piston-rod through a link 47 and cranked over the cover to terminate in a handgrip 54. A suction tube fitted at its bottom with a suction valve (not shown) extends through a mouthpiece 21 of the drum and the pump discharges through a loose-ball valve 42 into a flexible hose 46, connected at its end to a nozzle 58, Fig. 4, fitted with a filter 65 and an anti-drip valve 60. When not in use the hose 46 may be coiled around the drum and the nozzle 58 retained by its spout 59 in a socket 70 secured to the cover 7 by an adapter 71. To enable the pump to be primed a short length of tube 77 surrounding the suction tube 20 is connected. by a short length of hose 75 to the adaptor which is formed with a bore 72. Tie -bolts 9 and wing-nuts 13 hold the cover on the drum and also secure the drum on a base 3 fitted with a pair of wheels 4 and a castering wheels 5.
Patent GB-558080-A (GB)
Title: Improvements in and relating to electrical resistances
IPC: H01C1/14
Filed: 1942-06-11
Abstract: 558,080. Resistances. BRITISH RUBBER PRODUCERS' RESEARCH ASSOCIATION, and BLOOMFIELD, G. F. June 11, 1942, No. 7986. [Class 37] Resistances such as fixed resistors, rheostats, and potentiometers are manufactured by incorporatmg into a vulcanizable ebonite mix, a predetermined substantial proportion of a conducting ingredient or ingredients such as metal, carbon black or graphite in flake or powder form, vulcanizing the mix to form a resistance material, and shaping a resistance element from this material. The actual resistance of the finished element being brought to the desired value by regulating the time of vulcanization, continued treatment at the temperature of vulcanization effecting reduction in the resistance value. The mix may be sheeted to the desired thickness and after partial or complete curing cut into strips for the individual resistance elements, the final resistance value of which is adjusted on the one hand by controlling the period of vulcanization and on the other by reducing the cross-section of the element. Terminal tags may be moulded in or attached by rivets or grommets, the spacing being such that the resistance has the desired value. Alternatively the ends of the conducting ebonite may be coated with metal by spraying or otherwise. In one example an ebonite mix comprises 100 parts of smoked sheet rubber, 50 of sulphur, 10 of zinc oxide, 2.5 of zinc diethyldithiocarbamate, 2.5 of mercaptobenthiazole, and 60 of acetylene black. The mix is sheeted and vulcanized by heating first at about 100‹ C. for thirty minutes and finally at about 140‹ C. for four hours. A more highly conducting ebonite mix comprises 100 parts of subber, 50 of sulphur, 10 of zinc oxide, 1 of stearic acid, 2 of bitumen, 1 of zinc diethyldithiocarbamate, and 150 of graphite, sheeted and vulcanized at about 100‹ C. for thirty minutes and finally at about 140‹ C. for two hours. Instead of rubber, vulcanizable synthetic rubber-like materials such as polymerized butadiene or butadiene interpolymer may be employed. The mix may be sheeted and vulcanized and subsequently cut into strips for the individual resistance elements, or it may be bent into a cylinder for co-operation with a sliding contact. Alternatively the mix may be extruded through a die of desired cross-section, lengths being subsequently severed to constitute the individual elements and finally vulcanized. Specification 236,880, [Class 37], is referred to.