baber/WOPTO huggingface dataset:
Patent GB-646230-A (GB)
Title: Improvements relating to vehicle brakes
IPC: B61H13/32
Filed: 1948-03-08
Abstract: 646,230. Load variable vehicle brake. SVENSKA AKTIEBOLAGET BROMSREGULATOR. March 8, 1948, No. 7164. Convention date, March 22, 1947. [Class 103 (i)] A load variable brake for vehicles of the type described in Specifications 578,174, 600,115, 639,485 and 639,486, wherein a movable fulcrum for the brake lever system is adjusted in accordance with the deflections of a spring mounted longitudinally on the vehicle underframe with its ends coupled by levers to parts that move in correspondence with the deflections of the two axle springs, is characterized in that it provides for a similar form of operation when the individual axles are replaced by bogie trucks at each end of the vehicle. As shown in Figs. 1a, 2 and 3, each bogie has a central bearing comprising upper and lower members 21 and 22, of which the upper member 21 supports by rollers 29 a lever 20, having at one end a fulcrum 23, 24 on which rests the weight of one end of the vehicle body and being connected at the other end by a linkage 17, 18, 19 to the rod 14 that is secured to one end of the load fulcrum adjusting spring 15. Vertical displacements of the bogie as a whole relative to the vehicle body thus produce a tilting of the levers 20, which apply an axial force to each end of the spring 15, the resultant deflection of which acts to vary the brake leverage. In a modified arrangement, shown in Figs. 8 and 9, the deflections of the bogie bolster 3, are used to vary the brake leverage. In this case, two transversely spaced levers 20a and 20b are used and the deflections coupled to the spring- operating rod 14 by a transverse bar 38.
Patent GB-235648-A (GB)
Title: Improved means for winding and unwinding webs of paper and the like
IPC: B65H18/14
Filed: 1924-03-21
Abstract: 235,648. Winpenny, A. R. March 21, 1924. Winding-machines.-Apparatus for unwinding a paper or other web from a reel and winding it upon another reel comprises a driven main cylinder in contact with the take-up reel and a secondary cylinder in contact with the let-off reel and driven frictionally from the main cylinder, the reels being mounted on carriages operated by fluid pressure to hold the reels in contact with their cylinders. The apparatus is particularly applicable for winding remnants of paper from the supply rolls of printing machines to form full sized rolls but may be used for rewinding badly wound rolls. The let-off reel B and take-up reel B<1> are mounted in wheeled carriages F, F<1> running on rails H and are yierdingly pressed by fluid pressure cylinders J, J<1> into contact with a secondary cylinder D and a main cylinder E which is driven from any suitable source of power. The cylinder D is driven frictionally from the cylinder E by a belt K, the slip of which can be adjusted by a jockey pulley K' to tension the web. The speed of the cylinder D is slightly less than that of the cylinder E when the belt is tight. The web passes from the reel B over a spring mounted roller C and round the cylinders D, E as shown. A web damping apparatus M may be provided. The Provisional Specification states also that the apparatus may be used for winding fabrics.
Patent GB-1376191-A (GB)
Title: Production of mirrors
IPC: B29D11/00
Filed: 1972-03-30
Abstract: 1376191 Mirrors W OPPERMAN & SONS Ltd 30 March 1972 [19 March 1971] 7303/71 Heading G2J [Also in Division C7] A mirror comprises a synthetic polymeric substrate e.g. polymethyl methacrylate coated with a lacquer of e.g. cellulose nitrate which is itself coated with silver deposited from an aqueous solution. The silver layer may be protected by a copper layer coated with paint.
Patent GB-856650-A (GB)
Title: Improvements in controlling means for hydraulic presses, particularly forging presses
IPC: B30B15/26
Filed: 1958-03-07
Abstract: 856,650. Fluid-pressure servomotor-control systems. SCHLOEMANN A. G. March 7, 1958 [March 25, 1957], No. 7369/58. Class 135. An electro-hydraulic servomotor control system for controlling a forging press, comprises a rotary hydraulic motor 11 under the control of a slide valve 23 receiving pressure liquid from a pump 29 and actuating through a shaft 10 and a worm and worm-wheel 8, 9 a cam-shaft 5 which through cams 6 actuates the pressactuating valves 7. The slide valve 23 is in turn controlled by an hydraulic amplifier 21 having a control valve receiving pressure liquid from a pump 28 and connected by a rod 20 to the plunger coil 19 of a plunger-coil regulator 17. The plunger-coil regulator 17 receives signals through an electric amplifier 15 and a rectifier 16 from an induction rotary setter 4 having a rotor keyed to the cam-shaft 5 so that the motor 11 rotates the rotor to remove the voltage differential between the setter 4 and a desired value of voltage determining the position of the valves 7. The desired value of voltage may be set by hand-lever of a continuously variable mechanical controlling appliance 1 keyed to a shaft 2 which in turn is keyed to the rotor of an inductive rotary setter 3. When switches 41 are closed the rotor 5 of the setters 3, 4 rotate to operate the motor 11 until the differential voltage between the setters is removed. Alternatively, the desired value of voltage may be set by switching into circuit with the setter 4 one or other of resistance connections 51, 52, 53, 54 by means of push-button switches 47, 48, 49, 50.
Patent GB-1360601-A (GB)
Title: Ventilators for buildings
IPC: F24F7/04
Filed: 1971-06-15
Abstract: 1360601 Ventilators BRITISH GAS CORP 15 June 1971 [20 March 1970 19 March 1971] 13671/70 and 7407/71 Heading F4V A ventilator for a building, as shown, comprises a sleeve 1 of rectangular cross-section extending from the external wall of a building to a room inside, and has an inlet grille 2 and an outlet grille 3, which project beyond a flange 10 engaging the surface of the walls. A first baffle 6 is formed in the bore of the sleeve 1 by a downward curvature of the upper surface of the bore, and a second baffle 7 is formed by the upward curvature of the lower surface of the bore, downstream of the first baffle 6. The grilles are formed by generally horizontal louvres 12 with vertical stiffening bars 13.
Patent GB-924960-A (GB)
Title: Improvements in acoustic panels
IPC: E04B1/84
Filed: 1960-03-02
Abstract: 924,960. Laminates. H. A. GARROODJune 2, 1961 [March 2, 1960], No. 7424/60 Class 140. An acoustic panel comprises a backing board 2, e.g. of hardboard or insulation board, having secured to it parallel strips 4 of insulation board so spaced and shaped as to leave dovetail slots 6 wider at their base than at their open ends, the angles of their side faces preferably being about 30 degrees. The strips 4 are preferably faced with wood veneer or P.V.C. sheeting, and are preferably made by cutting large sheets of prefacedmaterial. The slots render the product to some extent flexible.
Patent GB-241100-A (GB)
Title: Improvements in or relating to friction shock absorbers
IPC: F16F7/02
Filed: 1925-03-19
Abstract: 241,100. Champly, H. G. C. March 19, 1925. Vibration - dampers. - In friction shock-absorbers for motor vehicles of the type having levers 7, 11 attached to the frame 4 of the vehicle and to the axle respectively, the usual friction washers 2 are of plano-convex form and are clamped between the flat surface of the lever 11 and the concave surface of the levers 7, the curvature of the washers 2 being less than that of the inner surfaces of the levers 7, so that frictional contact takes place near the periphery. The area of contact can be increased by tightening the nut 4<a> and so flattening the dished ends of the levers 7. The nut 4<a> may be held in the desired position by a spanner 15 which is left permanently in place and is secured upon a stud 16. The metal of the lever 11 is curved upwards at 3<a> round the bolt hole. Lubricating passages may be formed in the bolt 1 and washers 2.
Patent GB-275161-A (GB)
Title: Improvements in and relating to loud speakers
IPC: H04R11/00
Filed: 1927-03-18
Abstract: 275,161. British Thomson-Houston Co., Ltd., (Assignees of Kellogg, E. W.). Aug. 2, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Loud-speakers; magnetic instruments. - The air gap between an armature 2 and the actuating-magnet of a loud-speaker remains constant in length. The annular armature is mounted on a diaphragm 1 and suspended in an air gap between an annular pole-piece 3 and a magnetic core 4. Flat springs 23 accommodated in radial grooves 22 in the outer polepiece connect the armature to flanges 24 on an annular member 18 fastened to the outer pole-piece. An actuating winding 26 is provided in a slot between pole-pieces 5, 6, and the armature overlaps the pole-pieces forming a pair of long narrow working edges.
Patent GB-1254391-A (GB)
Title: A conveying device for sheet material
Inventor: SWANTESSON AKE
IPC: B29C31/00
Filed: 1970-02-17
Abstract: 1,254,391. Endless conveyers for feeding sheet material. SVECIA SILKSCREEN MASKINER AB. 17 Feb., 1970, No. 7616/70. Heading B8A. In a conveying device for sheet material 6, comprising a plurality of conveying units 1, 2 ..., &c. succeeding each other in the conveying direction, each unit consisting of a plurality of endless belts disposed parallel to each other to provide a supporting surface for the sheet material 6, the assembly of belts of two successive conveying units at the adjacent ends of the two conveying units is constrained to run over at least three conveyer rollers 3, 4 and 5, all disposed with belt-engaging portions of their surfaces all in the same plane. Some of the belts of one of the two conveying units at said adjacent ends overlap some of the belts of the other of the two conveying units when viewed in the direction of the axis of the rollers.
Patent GB-548675-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K19/26
Filed: 1941-06-18
Abstract: 548,675. Excitation of synchronous dynamoelectric machines. BRITISH THOMSON-HOUSTON CO., Ltd., and ANSCOMBE, L. D. June 18, 1941, No. 7703. Drawings to Specification. [Class 35] Windings in salient pole faces used for starting and/or damping out oscillations in synchronous machines are employed during running to assist the normal field excitation with reference to the polar (direct) or inter polar (quadrature) axes. In a fully distributed 3-phase starting winding one phase, centrally disposed in slots in the pole face, may be short circuited to effect damping and the others, disposed on each side thereof, may be connected in series with the usual field coils or in the circuit of a separate exciter. This arrangement reduces harmonics by establishing a trapezoidal flux distribution in the pole face. The no load excitation only may be provided by the normal field or the pole face winding, additional excitation corresponding to the load being furnished by the other winding. This additional excitation may be automatically controlled by the load current or the coils may be fed through a rectifier from the A.C. supply to or from the machine.
Patent GB-918914-A (GB)
Title: Apparatus for piercing holes in turf
IPC: A01B45/02
Filed: 1958-03-11
Abstract: 918,914. Treating turf. WALLIS, G. L. June 3, 1959 [March 11, 1958], No. 7803/68. Classes 6(1) and 6(2). A machine for piercing holes or making slits in turf comprises a pair of crankshafts spaced one behind the other in a wheeled platform 1 and turf working tools 19 connected to the throws of the crankshaft. As shown the platform 1 supports a power driven lawn mower 5 which drives friction wheels 6 in the frame 1. The wheels 6 drive a roller 2 through a chain 30 and the crankshafts through the intermediary of intermeshing oval gears 11, 14. Each crankshaft comprises three throws and the outer throws are adapted to be disconnected from the centre throw to enable all the tools 19 to be moved clear of the ground. Aligned throws of the crankshafts are interconnected by a cross-head which is adapted to support a tool 19 adjacent to each throw. In place of the mower 5 the machine may be fitted with an engine or electric motor.
Patent GB-540060-A (GB)
Title: Improvements in oil coolers
IPC: F28D1/00
Filed: 1940-05-03
Abstract: 540,060. Cooling radiators for aircraft. WORCESTER WINDSHIELDS & CASEMENTS Ltd., and MEDDINGS, J. May 3, 1940, Nos. 7959/40 and 5214/41. [Class 64 (iii)] In an oil cooler comprising groups of honeycomb ended tubes 6 separated by partitions 5 and placed within a shell 1 forming a surrounding oil circulation passage 3, to prevent oil escaping from the spaces between the tubes past the edges of the partitions, extended side edges 9 of the partitions are bent over and soldered together to form oiltight joints. The extended edges may be directly secured together or they may be soldered to thin plates 10 corresponding in shape to the wall 2 of the casing. The plates may be formed with holes opposite the bent-down edges of the partition to facilitate soldering. The oil flows downwards from inlet 4 through the passage 3 and entering the lower tube group through an aperture 7 in the casing flows upwards in a sinuous course between the tubes and through apertures in the partitions to outlet 8. Specification 540,060 is referred to.
Patent GB-569725-A (GB)
Title: Improvements in and relating to marine screw propellers
IPC: B63H1/12
Filed: 1943-05-19
Abstract: 569,725. Marine screw propellers. JABLONSKY, B. May 19, 1943, No. 7959. Addition to 563,900. Drawings to Specification. [Class 114] The blades of a marine screw propeller are made of fibrous material bonded together by the method claimed in the parent Specification. The fibrous material may consist of wooden laminµ, paper, pulp, or textile fabric, and it may be interleaved with metal strip, wire netting, or gauze. The adhesive is preferably a thermosetting or thermoplastic artificial resin, and films of the adhesive, with or without fibrous fillings, may be interleaved between the fibrous laminµ. The bonding is effected under heat and pressure. The hub may be made in a similar manner, or of metal, and the surfaces of the blades may be coated with a waterrepelling dope or varnish. Specifications 562,180 and 567,427, [Group VIII], are referred to.
Patent GB-1172554-A (GB)
Title: Bis-Thiosemicarbazones and a process for their manufacture
IPC: C07D295/13
Filed: 1967-02-20
Abstract: 1,172,554. Bisthiosemicarbazones. FARBWERKE HOECHST A.G. 20 Feb., 1967 [19 Feb., 1966], No. 7975/67. Heading C2C. Novel bis-thiosemicarbazones of the formula wherein R is a diethylamino or piperidino group, and acid addition salts thereof are prepared by reacting (a) amono-thiosemicarbazone of the formula with the thiosemicarbazide of the formula or reacting the monothiosemicarbazone of the formula with the thio-semicarbazide of the formula H 2 NNHCSNHCH 2 CH 2 R optionally in the presence of an acid; or reacting (b) a mono-thiosemicarbazone VI of the formula with the mustard oil of the formula or reacting the mono-thiosemicarbazone of the formula with the mustard oil of the formula S = C = N-CH 2 -CH 2 -R and optionally isolating the base obtained from the salt by a method known per se or by treating the base with an acid. The mono-thiosemicarbazone-mono-oximes of the second formula above can be prepared by reaction of isonitrosoethyl-methyl ketone and a thio-semicarbazide of the fifth formula above in equimolar amounts or by reaction of a mustard oil of the ninth formula above with a diacetylmonohydrazone-mono-oxime in equimolar amounts, The mono - thiosemicarbazone - mono - hydrazones of the sixth formula above can be prepared by reaction of equimolar amounts of a mustard oil of the ninth formula above and diacetyldihydrazone. Pharmaceutical preparations, comprising as active ingredient a novel bis-thiosemicarbazone of the first formula above in admixture or conjunction with a suitable solid or liquid diluent, are active against poultry coccidiosis and may be administered in the drinking- water or foodstuff.
Patent GB-1088404-A (GB)
Title: Electric switch with plug-receiving socket
IPC: H01R13/64
Filed: 1966-02-24
Abstract: 1,088,404. Two-part couplings combined with switches; snap-action switches. STACKPOLE CARBON CO. Feb. 24, 1966 [March 4, 1965], No. 8134/66. Headings H2B and H2E. In a socket connector having three linearly arranged rigid contact pins 23, 24, 26, two pins 23 and 24, only one of which is connected to a lead wire, are bridged by a switch. The socket body 30 is of plastics material and is generally rectangular comprising at least two walls 28, (29) which extend integrally from the cover 2 of a closed cylindrical body which houses the switch and the bases 7, 8, 25 of the pins. The side wall 3 of the cylindrical housing, from which mounting fingers 4 project, may be integral with either the cover 2 or a base 5 and in the latter case may be metallic. The switch comprises a pivoted arm (11) (Fig. 4, not shown) with a bridging contact (9) which can be moved into engagement with the contacts 7, 8 by operation of a member 17 which projects through the side wall 3. Member 17 is connected to the arm 11 by a torsion spring (19). An earthing pin, from which a lead extends through a slot in the socket housing, may be aligned with the pins 23, 24, 26. A plastics plug connector (Fig. 8, not shown) with a row of contact-carrying openings (32) has recesses (34) for snap-fitting with detents 35 formed on opposite inner walls of the socket, correct coupling being ensured by the rounding of two pairs of corresponding corners of the coupling parts.
Patent GB-609549-A (GB)
Title: Improvements relating to spark ignition apparatus for internal combustion engines
IPC: F02P5/00
Filed: 1946-03-15
Abstract: 609,549. Timing ignition. LUCAS, Ltd., J., and SMITH, F. W. March 15, 1946, No. 8142. [Class 7 (iv)] Ignition timing adjustment is carried out by a unit comprising in combination a frame detachably connected to a housing of an interrupter and embracing a gapped portion of the housing, a non-rotatable but axially movable spindle carried by the frame, a member responsive to variations of pressure in the engine induction system and connected to one end of the spindle, a finger-piece situated at the other end of the spindle and having a screw-thread connection therewith and a spring-loaded collar slidably mounted on the spindle and connectible to an interrupter, the arrangement being such that the collar is movable relatively to the spindle under the action of the finger-piece and is movable with the spindle under the action of the member responsive to pressure variations in the engine induction system. In the Figures, an interrupter comprises an arm d, carrying a contact e, pivoted to an angularly adjustable plate h. The contact e co-operates with a fixed contact carried adjustably by the plate h. The interrupter is operated by an ignition cam c. Adjustment of the ignition timing is made by angular movement of the plate h. This movement is effected by a unit comprising a metal frame m which is detachable from a housing a of the interrupter. The frame m is detachably secured to the housing which it embraces by nuts n and a clip o. The means for adjusting the plate h is shown mainly in Fig. 3. An extension h<1> of the plate h carries a member 3 which engages a collar 2 carried by a spindle p mounted in the frame m. The spindle p is connected at one end to a collar q fixed to a diaphragm r, the diaphragm being located in a housing s, one side of which is connected to atmosphere and the other side of which is connected to the induction system of the engine through a connection t. The other end of the spindle p carries a thread v and collar z. The thread engages internal threads on a finger-piece w by which hand adjustment of the timing is carried out. Rotation of the finger-piece causes it to move axially along the spindle p and either move the collar 2 or allow it to move under the action of a spring 4. A spring x operates between the collar z and a shoulder y inside the finger-piece.
Patent GB-416511-A (GB)
Title: Improvements in or relating to printing presses
IPC: B41F1/32
Filed: 1933-03-17
Abstract: 416,511. Printing-machines; feeding sheets. PRATT, F., 23, Junction Road, Warley, Essex. March 17, 1933, No. 8164. [Classes 100 (i) and 100 (ii).] A printing-press which is especially applicable for printing on collapsed cardboard cartons comprises a platen 1 which is reciprocated horizontally between a magazine 2, from which the bottom carton is separated by the aid of raised portions of the platen 1 which act as pusher separators, and the separated carton is held by suction apertures 18 in the platen 1. Coacting with the platen is a vertically reciprocating type-carrying cross piece 27 on which the type member 7 is adjustably mounted. The type descends on to the sheet when the platen 1 is at its extreme right-hand position, and after the impression the suction is cut off, and as the platen moves to the left strippers 56 arranged in front of the magazine 2 cause the blank to be delivered down a shoot 8 fitted with a delivery roller 66 or with a pair of delivery rollers one of which is coated with blotting material. The platen 1 is reciprocated in guides by a link and an oscillating lever 10 on a shaft 11 which is rocked from a cam on the main shaft 9. Cushioning springs 63 are provided on a rod 61 to control the movement of the platen. The air pressure in the platen is controlled by a slide valve which is reciprocated in a chest 20 by a cam on the shaft 9. The cross piece 27 is carried by rods 28 which are raised in guides 29 by means of an oscillating lever which acts on a cross-bar 30. The type descends under the action of gravity or of springs 37 when a cam on the shaft 9 permits descent of the oscillating lever. A trip lever 38 may hold the type in the raised position when desired. The type is normally inked when in the raised position by a travelling roller 39 which is carried by links 44 operated by oscillating levers 43 operated from the oscillating shaft 11. The roller 39 receives ink from a disc 42 which is rotated intermittently by the operation of a gravity pawl 59 carried by a lever 48 which is moved clockwise by the shaft of the roller 39 as this moves to the right and returns by the action of a spring 49. The pawl 59 engages holes 50 on the underside of the disc 42 and rotates the disc intermittently. A counting-device 64 is operated by a trigger 65 on the type head.
Patent GB-709470-A (GB)
Title: Press for printing individual articles such as envelopes
Inventor: SKOW ROSS ERIC
IPC: B41F33/12
Filed: 1950-07-07
Abstract: 709,470. Printing machines; feeding and delivering sheets. WALBERT MACHINE CO. July 7, 1950, No. 8261/53. Divided out of 709,415. Drawings to Specification. Classes 100 (1) and 100 (2) A high speed printing press for small articles such as envelopes comprising a magazine for the articles, a rotary cylinder with suction means for withdrawal of the articles one by one from the magazine and an endless conveyer for moving the articles torwards the printing means, includes means in close proximity to the path of movement of the articles and associated with members adapted to operate respectively a first switch when actuated by a number of articles piled up in the said path and a second switch when actuated by the absence of an article in the said path, the operation of the first switch causing the press to stop and the operation of the second switch rendering the printing means inoperative without stopping the conveyer. The machine shown and described is identical with that described in Specification 709,415 to which reference is made, but the claims differ.