baber/WOPTO huggingface dataset:
Patent GB-493870-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone or like exchange systems
IPC: H04M15/04
Filed: 1937-04-16
Abstract: 493,870. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. (Kozma, L.) April 16, 1937, No. 10915. Addition to 440,348. [Class 40 (iv)] In a system of the kind described in the parent Specification in which the calling party's number is transmitted to ticketing equipment at a main exchange byA.C. impulses over a simplex circuit, the junction is tested before each impulse for the presence of stray current of the signalling frequency. The circuit CC which repeats the impulses over the junction is associated therewith by a switch CS. Impulses over wire d from identifying apparatus are received by a valve V and relay I and are repeated over the simplex circuit by relay R through a filter circuit F. While relay R is back, the filter F is connected through a rectifier RC to relay T, so that this relay operates if current of the signalling frequency is present on the junction and connects up cut-off relay CO which locks, gives an alarm and holds the calling line for identification by connecting retardation coils RC1, RC2 to the a and b wires. Relay R1 provides a discharge circuit for the condenser of the filter F after each impulse is sent.
Patent GB-235359-A (GB)
Title: Improvements in internal combustion engines
IPC: F02M1/00
Filed: 1924-05-03
Abstract: 235,359. Sunbeam Motor Car Co., Ltd., Coatalen, L., and Huggins, A. May 3, 1924. Spray carburettors.-In engines, particularly for use on aircraft, supplied with mixture by a blower or pump, the pump 3 is provided with a jacket 5 through which the fuel on its way to the carburettor 1, 2, is passed. The fuel is heated, thus enabling comparatively heavy fuels to be used, the additional weight of a special cooling medium for the pump is obviated, and atomization of the fuel is facilitated by the vanes of the pump. The jacket 5 may be replaced by a coiled pipe.
Patent GB-149053-A (GB)
Title: Improvements in and appertaining to change speed driving gear
IPC: F16H3/14
Filed: 1919-05-03
Abstract: 149,053. Brown, M. May 3, 1919. Variable-speed toothed gearing of the kind comprising a clutch member b secured to a driving- shaft a movable into engagement with a number of loose gears C, C', C<2> to produce the various speeds, is modified by the provision of a toothed gear d<2> fast on the shaft a, which slides into mesh to produce the reversed drive, the clutch b being then disengaged. Bevel gearing may be used and the invention is applicable upon motorvehicles.
Patent GB-166703-A (GB)
Title: Improvements in or relating to railway signalling apparatus
IPC: B61L5/16
Filed: 1920-04-21
Abstract: 166,703. Automatic Telephone Manufacturing Co., Ltd., and Hudd, A. E. April 21, 1920. Wire and rod compensators; slots, reversers, and the like.-A device which allows for expansion and contraction of the operating-wire and acts as a slot or reverser comprises a rotatable drum 17 over which the weighted wire, rope, or chain from the lever passes, and a crank-arm 9 fast on the same shaft as a bracket 26 carrying a frame 23, 25, and a roller 21, or a ball, which is actuated to cause the parts to clutch. The roller or ball 21 normally lies clear of the inner periphery of the drum 17, which is free to rotate independently of the remainder of the apparatus. In the construction shown, an electromagnet 31, carried on the bracket 26, serves when energized to move the rod 36 to press the roller against the drum so that when the drum is rotated, the roller wedges against the surface 24 and thrusts the frame 23, 25 against the drum and so the drum positively drives this frame, the bracket 26 and its associated parts, and the signal crank 9. The armature 34, while energized, holds the lever 28 against rotation on its pivot 29 on the bracket 26. If the magnet is de-energized, the weight of the signal, acting through the lug 40, causes the lever 28 to rock and the nose 42 drives the roller 21 clear of the frame 23, 25 and thus the clutch is disengaged.
Patent GB-195873-A (GB)
Title: Heating furnace
IPC: C21D9/00
Filed: 1922-04-19
Abstract: 195,873. Faþoneisen - Walzwerk L. Mannstaedt et Cie, Akt. Ges., Bansen, H., and Luhn, C. April 19, 1922. Furnace fire-places. - A furnace for heating small iron-ware, such as bolt-blanks, metal goods and the like comprises a chamber d and shaft n, in which fuel is preliminarily heated, separated by a partition c from a heating-chamber f into which incandescent coke is pushed by a rake inserted through the opening l. Some of the furnace gases are drawn through the fuel in the shaft h and returned with gases evolved from the heated fuel through openings such as m and flues n to the openings o at the upper part of the chamber f, air-jet blowers being provided in the flues n to assist the passage of the gases. The articles to be heated are inserted through openings s in the roof t, or through the door u, so as to rest on the hearth i or incandescent fuel in the chamber f. The gases are led through the flue q to the chimney or to a hearth forming an extension of the heating-chamber.
Patent GB-310176-A (GB)
Title: Improvements relating to grass edge cutting machines
IPC: A01G3/06
Filed: 1928-04-14
Abstract: 310,176. Cochrane, K. April 14, 1928. Lawn-mowers.-A machine for trimming grass edges comprises two shear blades pivoted together and both actuated by a spring and by cam mechanism driven from a roller. The handle 1 is pivotally mounted on a yoke 2a connected to the spindle 9 of the serrated roller 12. It is adjustably held in position by a spring-controlled catch 6 engaging in notches 8. A plate 14 carrying projecting pins 15 is driven from the roller 12 by a ratchet. The blades 18, 19 are pivoted on an L-shaped plate 17 mounted on the spindle 9 and secured by a screw 17<a> having a winged, head. The lower part of the plate 17 is inclined outwardly so that the plane of the blades 18, 19 is inclined to the vertical. The lower blade terminates in a tail-piece 24 carrying a lug 26 with which the pins 15 engage successively. The upper blade also carries a lug 28 to engage the pins at the same time as the lug 26. The blades 18, 19 are closed by the pins and pushed apart by a spring 29 which is adjustable by screwing a thimble 31 into a socket 33. The downward movements of the blades are limited by stops. Horizontal and vertical guides 36, 37 are provided to raise the grass. These guides are adjustably connected together, the pointed and bevelled horizontal one 36 being fastened to the blade 18 and the vertical one 37 to a bar 40 fixed to the yoke 2<a> by a bolt 41 and screw 42. The pins 15 may carry rollers or may be replaced by cams. A grass receptacle may be attached to the guidebar 36. One of the Provisional Specifications describes a machine having one of its blades fixed, the other blade being opened by cam mechanism and closed by an adjustable spring.
Patent GB-569161-A (GB)
Title: Improvements in or relating to interlocking building elements and to structures erected therewith
IPC: F16B39/284
Filed: 1943-07-09
Abstract: 569,161. Building slabs. DANHOF, K. R. July 9, 1943, No. 11128. [Class 87 (i)] Interlocking building slabs 1 with notches 3 across the upper and lower faces at the interengaging points are formed with shoulders 5 located near the notches so as to support shuttering 6 for pouring grouting into the angles between the slabs. The modification, Fig. 6, has slots 7 at each side of the reduced portion 4 midway between the notches 3 and the upper and lower faces recessed at 8 above and below the slots, through which slots and recesses reinforcing wires may be threaded.
Patent GB-219392-A (GB)
Title: Improvements in or relating to photographic copying, enlarging and reducing apparatus
IPC: G03F7/22
Filed: 1923-04-24
Abstract: 219,392. Harris, R., and Pictorial Machinery, Ltd. April 24, 1923. i Enlarging, copying, and reducing.-An automatic focusing step and repeat machine comprises a fixed base frame A, Fig. 1, carrying an image-screen C and a rigid frame B which can be fixed at different heights on three adjustable feet B<1>. A table D, movable on the frame B towards and away from the screen, carries the unit-holder F and lens holder E<1>, one of these holders being fixed on the table and the other movable, and these holders are automatically adjusted by cam means carried by the table D and operatively connected to the movable holder and to the fixed frame B. In the construction shown, the unit-holder F is moved, and comprises a frame F<1>, Fig. 2, adjustably secured to a base F<2> having rollers F<3> running along the top of the table in a direction to and from the lens-holder E'. The base F<2> is adjusted, with respect to lens-holder to effect automatic focusing, against tension of a cord J having a weight J<2> attached to its other end, by a cam H engaging a roller F<4> attached to the base. F<2> and automatically rotated when the table D is moved with respect to the image-screen C by a rack D<1> and handoperated pinion K<1>, The cam H is carried by a spindle H<1>, Fig. 3, rotatably mounted on the table D, and having secured at its other end a gear-wheel H<2> engaging a rack H<3> attached to the frame B. The rack H<3> is longitudinally adjustable on the frame and is secured in position by lock-screws H<4>. The teeth of gear wheel H<2> and rack H<3> are arranged at such an angle that the normal pitch is a standard pitch. The lensholder E<1> is adjustably secured to the table D by a tongue-and-groove connection and a locknut E<3>, The lantern G is carried on a trolley G<1> pivotally attached to the unit-holder F. The image-screen C is supported on two vertical standards A<1> on the frame A so as to be vertically and horizontally adjustable.
Patent GB-639362-A (GB)
Title: Improvements in or relating to rotary tobacco cutting machines
IPC: A24B7/14
Filed: 1948-04-22
Abstract: 639,362. Tobacco-cutting machines. MORRIS, J. E., and MOLINS MACHINE CO., Ltd. April 22, 1948, No. 11149. [Class 5 (i)] A rotary tobacco-cutting machine of the kind described in Specification 588,129 is provided with a casing 2 closely shrouding the cutting head 1, except where it sweeps across the mouthpiece 7, a further casing, forming a tobacco-receiving chamber 21, being provided, near this point, with an inlet through which substantially all the cut tobacco passes. The casing 2 has a flat front wall 3 and an arcuate side wall concentric with the axis 5 of the cutting head 1. The front wall 3 is cut away at 15, 16, to form an inlet to the further casing 21, which has a tubular upper portion and an outlet spout 18. A cover 22 for this casing carries a duct 23, through which air may be drawn to exert a winnowing action on the cut tobacco. An observation light 25 and an inspection window 24 are provided. The complete Specification also describes a magnetic device for removing filings after the grinding of the knife-head.
Patent GB-1059040-A (GB)
Title: Supercharged, air-compressing four-stroke internal combustion piston engine
IPC: F02M26/01
Filed: 1964-03-17
Abstract: 1,059,040. I.C. engine cycles; cams. KLÍCKNER-HUMBOLDT-DEUTZ A. G. March 17, 1964 [April 2, 1963], No. 11195/64. Heading F1B. The valve gear of a supercharged air compressing four stroke I. C. engine is arranged so that exhaust gas can penetrate into the air inlet passage for a short time during the exhaust stroke thereby forming a protective layer over the inlet valve seats. When compared with the exhaust flow cross-section curve a, Fig. 1 of a conventional engine, the exhaust valve cam is arranged so that from crank position S 2  the curve a follows the dash line. The earlier closing of the exhaust valve causes the pressure in the cylinder to momentarily exceed the pressure in the inlet pipe, as inlet flow cross-section curve b increases, to permit the desired flow. The later complete closing of the exhaust valve at 59 permits the full scavenging of exhaust gas to take place. In modifications the exhaust valve may be completely closed before T. D. C. on the exhaust stroke, or the inlet valve may be opened for a short time immediately after the commencement of the exhaust stroke.
Patent GB-1281564-A (GB)
Title: Improvements in or relating to waveguide filters
Inventor: POWELL IAN LAWRENCE
IPC: H01P1/209
Filed: 1969-03-03
Abstract: 1281564 Waveguide filters. MAKCONI CO Ltd 13 Nov 1969 [3 March 1969] 11228/69 Heading H1W A band-stop filter comprises a H 01  rectangular waveguide 1 and at least one stub 2 shaped and dimensioned to have its cut-off frequency above the operative frequency and containing a conductive finger 2 which, together with the stub forms a slab-line resonator. The resonator(s) may be tuned capacitatively by means of screws 4 opposite the fingers, or the. fingers may be adjustable in length, e.g. telescopic. The stub(s) may be open-circuited. They may be of rectangular, circular or triangular section. The fingers may be in the form of rods of circular, rectangular or polygonal section, or they may be conical or pyramidal. The stubs may be matched to the waveguide at off-resonance frequencies by inductive posts 5. The stubs are spaced apart by an odd number of quarter wavelengths.
Patent GB-857680-A (GB)
Title: A process for the production of aluminium trialkyls and alkyl aluminium hydrides
Inventor: WRIGHT BERNARD
IPC: C07F5/06
Filed: 1958-04-10
Abstract: Aluminium compounds of formula AlHx R3-x, when R represents a saturated aliphatic hydrocarbon or an alkaryl radical and x is 1 or 2, are made by reacting at elevated temperature and superatmospheric pressure preformed aluminium trialkyl, "aluminium flitters" (as defined) and hydrogen.  "Aluminium flitters" are platelets having a surface area (Rigden) exceeding 600 cm2/gm and of which at least 50% and preferably at least 75% do not pass a 100 mesh sieve.  It is preferred that the surface area be at least 1,000 cm-/gm. (or 2,000 or even 3,000 cm2/gm).  They may be prepared by grinding in a ball-mill or hammer-mill.  In a preferred process, the alkyl aluminium hydride formed may be reacted with an olefine to given an aluminium trialkyl.  A trace of iodine may be used as activator.  The preferred ratio of olefin to hydrogen is between 1,4 : 1 and 1,9 : 1. Specified olefins include ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, nonylene, and their branched chain forms such as isobutylene, and substituted olefins such as styrene. The olefin used preferably corresponds to the alkyl radicals in the aluminium trialkyl.
Patent GB-1334773-A (GB)
Title: Torch plasma cutting and or welding
IPC: H05H1/32
Filed: 1971-04-26
Abstract: 1334773 Cutting by fusion MESSER GRIESHEIM GmbH 26 April 1971 [24 April 1970] 11458/71 Heading B3V [Also in Division H5] An easily assembled plasma cutting and/or welding torch 10 has an interfitting electrode holder 11, insulator 12 and nozzle holder 13, the two holders 11, 13 having centring projections 24, 32, fitting snugly in bore 25 of the insulator 12, and the electrode 19 passing through the bores 18, 25, 34 of the three parts. Coolant flows via passages 23, 31 to passage 36, and the working gas flows via passage 22. Additional passages (not shown) may be provided for shielding gas in the three parts 11, 12, 13. A ceramic sleeve 35, in the nozzle holder 13, centres the electrode 19 and guides the gas, whilst protecting parts 12, 13, against overheating. A screw 21 secures electrode 19 in holder 11. Bolts 28 secure the insulator 12 to holder 11. Holder 13 and insulator 12 are connected by a bass ring 38 and cap nut 40. A ceramic sleeve 45 embraces nut 40 and threads on to holder 13 at 44. Holder 11 and insulator 12 are surrounded by a plastics tube 46 and metal protector 47.
Patent GB-715013-A (GB)
Title: Improvements relating to devices for feeding flexible sheet material
Inventor: TAYLOR MAURICE KENYON
IPC: G03B1/56
Filed: 1950-05-09
Abstract: 715,013. Feeding webs. FERRANTI, Ltd. May 8, 1951 [May 9, 1950], No. 11477/50. Class 100 (1) A device for changing the feeding speed of an electrically-conductive flexible sheet or ribbon to a predetermined value including the value zero, comprises a feed control member 15 having an outside surface 21 of insulating material such as polythene, and an inner part 16 of electrically conductive material and means for applying between the ribbon and sheet and the inner part of the member a voltage sufficient to effect slipfree frictional engagement between the surface 21 and the ribbon or sheet. As shown, the ribbon or sheet passes over an earthed metal object 26 in a treatment zone 11 and the part 16 is connected to the positive pole of a source of high voltage through a resistor 47 and slip ring 25, the negative pole being earthed. To change the feeding speed to zero a stationary member 41 is used. An aluminium roller may be used as a control member and provided with an anode film constituting the insulating layer. The control member may be of the endless belt type.
Patent GB-114871-A (GB)
IPC: G03D15/00
Abstract: 114,871. Wade, J. Sept. 27, 1917. Kinematograph picture films.-A Kinematograph film is composed of a series of sections connected together by transverse flexible strips. The hinges are preferably of the form shown at d, Fig. 4, and comprise a transverse part having lateral extensions lying along the edges of the film and may be embedded in the substance of the film. The film a is arranged to be stored folded in a zigzag manner in a box e, Fig. 1, having an outlet f at the top through which the film is drawn through the lantern and thence to a. similar box where it is similarly folded ready for projection without rewinding.
Patent GB-479101-A (GB)
Title: Heatable inhaling apparatus, particularly for the administration of anaethetics
IPC: A61M16/18
Filed: 1936-04-23
Abstract: 479,101. Anaesthetic and other inhaling-apparatus. SAUERSTOFF-CENTRALE FUR MEDIZINISCHE ZWECKE DR. E. SILTEN. April 23, 1936, No. 11562. Void. Convention date, April 24, 1935. [Class 81 (ii)] [Also in Group XI] In anµsthetic or other inhaling apparatus the mixture of air and inhalant is heated and moistened before passing to the facepiece and is preferably reheated after moistening. As shown ether in a container 17 having a filling opening 18 is delivered in drops, through a valve 12 and a sight glass 2, into a container 1 furnished with an inhaling valve 4. The mixture of vapour and air produced passes through a coil tube 3, surrounded by an electric heater 7, to a vessel 14 partly filled with water, whence the moistened mixture passes via holes 15<1> to a tube 15 and thence to the facepiece by a tube 16. The tube 15 also passes through the heater 7 where the moistened mixture is . reheated. The apparatus includes a thermostatic switch 9, a thermometer 6, and a lamp 5 in circuit with the heater and serving for illuminating the drip feed, indicating the operation of the heater, and as an excess current cut-out free from risk of explosion.
Patent GB-119435-A (GB)
Title: Magnetic Tray Control for use in connection with Biscuit Making Machinery.
Inventor: MASON ALBERT
IPC: A21B5/02
Filed: 1918-07-15
Abstract: 119,435. Mason, A., and Bowers, A. E. July 15, 1918. Sheet-cutting machines.-Biscuits are fed as usual from a moving canvas sheet overlying a sloping panning knife C to trays B, which are carried by conveyer chains E to the oven. To hold the trays in contact with the chains during charging and until stop pieces F come into contact with their rear edges, adjustable electro-magnets A (four being shown) are carried beneath the trays by brackets depending from the framework. These magnets hold the trays down to the conveyer and prevent any movement until the stop pieces engage the pans and overcome the magnetic attraction.
Patent GB-546402-A (GB)
Title: Improvements relating to the exhaust manifolds of aircraft and other engines
IPC: F01N13/18
Filed: 1941-09-10
Abstract: 546,402. Exhaust pipes, BARCLAY, L. J. Sept. 10, 1941, No. 11592. [Class 7 (ii)] An expansion joint in the exhaust manifold of an engine for aircraft in particular is formed by a pair of sleeves D, E which are spaced apart to receive the end B of the manifold. The sleeves are preferably welded to the end A of the manifold.
Patent GB-119057-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: TERTIUS CHRISTOPHER GEORGE BON
IPC: F01L5/06
Filed: 1917-08-13
Abstract: 119,057. Bonehill, C. G. Aug. 13, 1917. Valves.-In a two-stroke-cycle engine having a cylinder and piston of two diameters, a reciprocating sleeve valve B is located between the pistons and the cylinder, and charges compressed in the pump space x are transferred to the combustion space through passages in the piston which deliver into recesses or conduits in the sleeve valve. As shown in Fig. 1, the sleeve valve is formed with an extension in which slides the annular pump piston. The valve is actuated by eccentrics E. An exhaust valve G is located in the head of the cylinder and an inlet valve F in the annular pump. Charges are drawn into the pump space below the annular portion of the sleeve valve through a port H, and during the admission period in the working cylinders they are transferred to the combustion space through a passage or passages I in the piston and a channel or channels B<1> in the valve. According to the Provisional Specification, the valve may be water-cooled and may be controlled by springs and by the pressure of the working fluid.
Patent GB-116192-A (GB)
Title: Improvements in or relating to the Steering Mechanism of Motor Propelled Vehicles.
IPC: B62D7/00
Filed: 1917-08-17
Abstract: 116,192. Alldays & Onions Pneumatic Engineering Co., Simms, C. E., and Hilton, N. L. Aug. 17, 1917. Steering-gear.-The stub axles a<2> which are connected by a link d, are operated by chains e connected to steering arms e and wound on and off a drum f. The drum is operated from the steering post g, and is shaped to wind and pay out the chain correctly. The chain is provided with spring links e'.
Patent GB-1508789-A (GB)
Title: Articulated electric joints
IPC: H01R13/15
Filed: 1976-06-09
Abstract: 1508789 Electrical connectors PITCRAFT Ltd 9 June 1976 [21 March 1975] 11827/75 Heading H2E An electrical joint may be effected between two electrical conductors, for example bus-bars 3, by a jointing member 2 having a slot for receiving at least part of the ends of the conductors, and one or more resilient electrical conductive members 5 which, in use, are interposed between adjacent surfaces of member 2 and ends of the conductors and take up play and urge the conductor ends into engagement with the jointing member and accommodate displacement of the ends with respect to the jointing member. The conductive members 5 may be copper beryllium strips with lamellµ 11 pressed at an angle of 40 degrees from the plane thereof, thus allowing a degree of articulation whilst maintaining electrical contact between the ends of the conductors. The conductor ends may fit entirely into the jointing member 2, as shown in Fig. 1, or inturned lips 16 thereof (Fig. 6) may fit behind flanges 7 of an I sectioned member 2.