baber/WOPTO huggingface dataset:
Patent GB-923197-A (GB)
Title: Rotary positive displacement engine or pump
IPC: F02B75/02
Filed: 1961-02-02
Abstract: 923,197. Rotary engines and pumps. RESEARCH CORPORATION. Feb. 2, 1961 [Feb. 27, 1960; May 20, 1960], No. 3957/61. Class 110 (2). A rotary engine or pump comprises a block member 1, Fig. 8, a rotor 6, and end wall members 3, Fig. 4, wherein the inner surface 2 of the block member is divided into an even number of sectors, eight in Fig. 2, with each alternate sector AB, CD, EF, GH concaved at one specifically defined radius, O 0 B, and each alternate sector, BC, DE, FG, HA concaved at another specifically defined radius, O 1 B. The rotor 6, keyed to a shaft 5 and carried by bearings 4 supported by the end walls 3, is formed around its periphery with gear teeth 7 engageable with teeth 8 formed on the underside of piston members 9 urged outwardly into engagement with the surface 2 and having an outer curved surface corresponding to the larger of the two sector radii. The pistons, six in number, are each sealed by spring-loaded members 18 against the surface 2 and by spring-loaded members 14 against the end walls 3<SP>1</SP>. When operating as an I.C. engine, air is sucked in through inlets 21 and exhaust gases discharged through outlets 22, fuel admitted through ports 23 may be supplied through a carburetter and together with the compressed air ignited by a sparking plug or under fuel injection. On one complete revolution of the rotor clockwise, each piston completes two operational cycles, so that with the six pistons twelve operational cycles take place per revolution. With diametricallyopposed pistons firing simultaneously and the inlets 21 and outlets 22 symmetrically disposed, the rotor 6 is dynamically balanced.
Patent GB-117601-A (GB)
Title: An Improved Apparatus for Heating Liquids by the Heat Generated by Chemical Reactions.
Inventor: TURRETTINI HORACE
IPC: C09K5/16
Filed: 1918-03-07
Abstract: 117,601. Turrettini, H. July 17, 1917, [Convention date]. Generating by chemical action. - A liquid is boiled by introducing a determined quantity of acid into a determined quantity of a base con. tained in a vessel immersed in the liquid. A gastight vessel a immersed in the water in a saucepan contains a cage e holding quicklime, above which is a rod and piston f supporting a chamber g containing sulphuric acid and having a lead diaphragm i in its bottom. When the chamber is pressed downwards by a screw l, the piston ruptures the diaphragm and the acid falls upon the quicklime. The top of the chamber is closed by a screw-down cover b and a lead-cap c. The diaphragm is secured by a plug k engaging by a bayonet joint with a socket projecting from the chamber. According to the Specification as open to inspection under Sect. 91 (3) (a), the acid may be released by the opening of a cock, or by the rupture of a glass container. This subject-matter does not appear in the Specification as accepted.
Patent GB-549948-A (GB)
Title: Carrier frequency telephone system
IPC: H04B3/54
Filed: 1942-03-27
Abstract: 549,948. Carrier telephony particularly over power lines. STANDARD TELEPHONES & CABLES, Ltd. March 27, 1942, No. 4071. Convention date, Oct. 22, 1940. [Class 40 (iv)] A system of carrier telephony particularly over a power line PL employs a single carrier source 40 which may be located at one of the stations, for example the central station CO, or connected to the line at any suitable point. and to avoid differences of phase at stations remote from the source, the transmission is either restricted to a single side-band or if both side-bands are used those stations are provided with phase-correcting networks. If communication between the out-stations is desired, the networks should be adjustable in accordance with the various lengths of line that may be involved. Each station is provided with a rectifier-bridge 20 for modulation and demodulation and is connected to the line PL through a filter 32, phase-correcting network if required, transformer 34 and condenser 36, one wire of the line being grounded. Calling current is generated by an interrupter 30 under the control of a key 28 and is amplified to operate the bells 24 and a lamp 52 at the central station CO. The latter is provided with a jack 44 for interconnection with an extraneous system.
Patent GB-262628-A (GB)
Title: Improvements in and relating to stoppers for tanks and other containers
IPC: B60K15/04
Filed: 1926-02-13
Abstract: 262,628. Evans, L. Feb. 13, 1926. Detachable stoppers secured by clamping devices. -A stopper for petrol tanks, radiators, and other containers comprises a flat or dome shaped top D having on its underside a packing ring A and a depending tubular part which tapers inwardly for about three fourths of its depth and then outwardly to adapt it to be levered over an outstanding rubber ring C disposed in a groove or swage B in a tubular neck formed with a flanged base F and inturned top O, the ring C exerting a downward pressure on the cap when it is in the closing position.
Patent GB-703489-A (GB)
Title: Improvements in or relating to axial-flow compressor or turbine rotors
IPC: F01D5/06
Filed: 1951-02-21
Abstract: 703,489. Turbine and compressor rotors. UNITED AIRCRAFT CORPORATION. Feb. 21, 1951 [March 23, 1950], No. 4213/51. Class 110 (3) An axial-flow compressor or turbine rotor comprises a plurality of bladed discs 2, a series of bolts 14 extending therethrough and arranged in a ring surrounding and spaced from the axis of rotation of said discs, a sleeve 22 extending between adjacent discs and surrounding the ring of bolts and a plurality of tubes 28 carried by the sleeve and positioned for spacing adjacent discs. The tubes 28 are preferably a loose fit in one of the flanges 25 of the sleeve 22 and a press fit in the other flange thereof. The sleeve is slightly shorter than the tube. When the disc is liable to be subjected to a greater thermal expansion than that of the sleeve, the disc is provided with flanges which support the inner edges of the flanges 25 of the sleeve. Specification 571,205 is referred to.
Patent GB-973191-A (GB)
Title: Improvements in or relating to orbiting piston machines
IPC: F01C1/336
Filed: 1962-02-03
Abstract: 973,191. Orbital piston machines. A. A. JONES. Jan. 31, 1963 [Feb. 3, 1962], No. 4248/62. Heading F1F. An orbiting piston machine comprising a piston eccentrically mounted within a cylinder to orbit therein without rotation and vanes connected at fixed circumferential positions to both the piston and cylinder to form a plurality of variable volume chambers, wherein the inner and outer edges of the vanes have cylindrical pivots fitting lengthwise extending recesses in the piston and cylinder disposed substantially radially with respect to the piston, with one of the recesses being of cylindrical section and the other recess either cylindrical or parallelsided. As applied to a two-stroke I.C. engine, a cylindrical housing 21, Figs. 5, 6 formed with cooling fins 45 and closed by end plates 22, 23, houses a piston 29 whose parts 29A, 29B are urged apart by springs 30 into sealing contact with the end plates and mounted on the crankpin 27 of a crankshaft 26. Fixed pins 31 and circular piston recesses 32 control orbital rotation of the piston. Vanes 4 each made in two parts 4A, 4B slidable with respect to each other and connected to cylindrical pivots 7 fitted in lengthwise extending recesses 6 in the housing 21 and piston parts 29A, 29B divide the space between the housing and piston into alternate long and short variable volume chambers 1L, 1S. Each chamber 1L is fitted with a spark-plug screwed into a socket 44 and connected by a port 36 to a manifold 35 supplied with a fuel-air mixture through a throttle controlled inlet passage 33 and each chamber 1S is connected by a port 36 to an exhaust passage 37. An annular cavity 38 in the plate 23 connected by ports (not shown) in the plate permits the transfer of combustion mixture from the chambers 1L to the chambers 1S. On orbital rotation of the piston fuel-air mixture is sucked in turn into each of the chambers 1L compressed therein and ignited and then subsequently expanded, transferred to the associated 1S chamber and exhausted. Each vane part 4A, 4B is itself made in two parts which are urged apart by springs 10, Fig. 4, in a similar manner to the piston parts 29A, 29B into sealing contact with the end plates 22, 23. Half-round plates 18 inserted in half-round slots 19 seal gaps 17 between vane parts 4BX and 4BY or vane parts 4AX and 4BX (not shown). The blade parts are formed with weight reducing cavities 13. Instead of being air-cooled by means of the fins 45, the housing 21 may be water-cooled as also may be the piston 29 by suitable connections through the shaft 26. The shaft 26 carries a flywheel 25 and co-operates with ignition contact breakers 43. Another embodiment described with reference to Figs. 10 and 11 (not shown) relates to a four-stroke I.C. engine. In this case a rotary valve plate fixed to the shaft 26 controls inlet and exhaust ports opening into the chambers, which are four in number with two alternate chambers firing during one piston orbit and the other two alternate chambers during the next piston orbit.
Patent GB-236486-A (GB)
Title: An improved case for portable typewriters
IPC: B41J29/06
Filed: 1925-02-16
Abstract: 236,486. Reischl, L., and Bing-Werke vorm. Geb. Bing Akt.-Ges. Feb. 16, 1925. Portable machines; covers.-A case for a portable typewriter is formed by the shallow, approximately square framework F of the typewriter, and a cover m which is slipped over the framework and secured bv a strap or web r. If a table is not available, the typewriter is supported on the knees and secured by passing the strap round the legs. The framework shown in Fig. 3 consists of a base c extending to the front of the keyboard, sides a, b, a back g, and a front f surrounding the keyboard and secured to the base and flanges d, e on the sides. The base is provided on the bottom with rubber discs, and loops s through which the strap passes. The cover is provided with a handle o, and lugs for engaging slots h, i in the back g.
Patent GB-1171337-A (GB)
Title: A Latching Means for Cupboard Doors, Locker Doors, Drawers and like Openable Members
Inventor: NARDIN ERIK BORJE
IPC: E05C19/00
Filed: 1967-01-28
Abstract: 1,171,337. Latches. TRANSITORIA TRADING CO. A.B. 28 Jan., 1967, No. 4323/67. Heading E2A. Latching means for a door or the like comprises a casing secured to the door I and having a leaf spring tongue 6 secured to the casing at the inner end and projecing therefrom at the other end, the tongue being free to move in the casing and is resiliently flexed as the door is closed, the end frictionally engaging the edge of a frame 2. A stop in the form of an edge of a plate 9 is secured to the edge of the door. The tongue may be integrally moulded with the casing and stop. The stop plate 9 may be omitted, the edge of the door then acting as the stop. The edge of the frame 2 may have a sticking plate with projections or recesses engaging the end of the tongue. The end of the tongue may be bevelled or rounded or provided with a roller. A handle 20 connected to the door has a connecting member 23 passing through the door and provided with a groove 24 into which one end of the tongue engages. The door is pushed to close and to open, the door handle is pressed to displace the member 23 inwardly and flip over the tongue the lower part of the handle is then pulled outwardly while continuing to press in the upper part thereof.
Patent GB-577440-A (GB)
Title: Improvements in or relating to electrically operated water heating means
IPC: F24H1/10
Filed: 1944-03-11
Abstract: 577,440. Electrically heating liquids. JONES, F. G. March 11, 1944, No. 4581. [Class 39 (iii)] An electrically operated water heated comprises a main water cylinder 1, an air-tight secondary cylinder 3 within the main cylinder, a water supply pipe 7, one or more electrically heated water tubes 9 communicating at both ends with the main cylinder, and a water outlet pipe 11 having its inlet towards the top of the main cylinder, the pipe 11 and tubes 9 passing through the secondary cylinder. The supply of current to the electric elements, mounted on quartz glass sleeves 13 surrounding the tubes 9, is controlled through a thermostatic device 14. Specification 286,374, [Class 39 (iii)], is referred to.
Patent GB-248905-A (GB)
Title: Improvements in water tube steam boilers
IPC: F22B21/12
Filed: 1925-02-19
Abstract: 248,905. Clarke, Chapman, & Co., Ltd., and Woodeson, W. A. Feb. 19, 1925. Water-tube boilers of the kind embodying one or more sections each comprising an upper steam and water drum 2 and a lower water drum 1 connected to each other by transverse double rows of tubes spaced comparatively widely apart, are provided with both bent and straight tubes, the straight tubes being located towards the middle of each row and some of them occupying what would otherwise be spaces between the tubes. One of the drums has opposed manholes 11 through which the straight tubes can be fitted or removed. The part between the brackets x of a tube plate shown in Fig. 2 contains the straight tubes, those cross-hatched being additional tubes occupying spaces between the usual rows.
Patent GB-1364753-A (GB)
Title: Valve for clutch control system
IPC: F16D48/04
Filed: 1972-02-01
Abstract: 1364753 Clutch control ROBERT BOSCH GmbH 1 Feb 1972 [3 Feb 1971] 4649/72 Heading F2L A clutch 1 in a motor vehicle is disengageable by a clutch pedal 19 via a master cylinder 18, a valve 15 and a slave cylinder 11, or automatically by a source of pressure medium 24 via the valve 15 and the slave cylinder 11 under the control of an electronic circuit 28 which operates valves 22 and 25. The valve 15 comprises two pistons, 37 and 50 which define three pressure chambers 49, 60 and 61, the pistons having nuts (Fig. 2, not shown) which abut in the clutch engaged condition shown. On depression of pedal 19 the electronic circuit is disengaged via switch 29, fluid flows from the master cylinder via line 17 to enter the valve 15 at port 16 and so move piston 37, and via the nuts the piston 50, to cause fluid from chamber 61 to pass to the slave cylinder via line 13 to disengage the clutch. For disengagement under electronic control, when a higher gear is preselected in the vehicle transmission, the vehicle accelerator pedal is raised causing the control 28 to move valve 22 to cause pressure fluid to be supplied to chamber 60 from the source 24, which moves piston 50 down to disengage the clutch. On the disengagement of the clutch an extension of the piston 50 closes an electrical contact 69 to switch the valve 22 back (to position I) to cause rapid engagement until a contact 70 is actuated by the piston 50 to cause valve 25 to move to its position II which throttles the flow from chamber 60 to the reservoir 75 (by a variable throttle 27) and causes a gradual final engagement. When a lower gear is to be engaged the clutch is quickly re-engaged (throttle 27 not being used) after neutral is selected, the accelerator is depressed again, and the fresh ratio is selected when synchronization is obtained in the gearbox. For this example the gear-box is not a synchromesh type containing synchronization devices. In the piston 37 is a oneway valve to allow fluid to fill the master cylinder and line 17, and in the part 32 of the valve a further oneway valve provides alteration of the fluid in the slave cylinder and line 13 to compensate for clutch wear.
Patent GB-555164-A (GB)
Title: Improvements in and relating to ventilators
IPC: B63B19/00
Filed: 1942-04-10
Abstract: 555,164. Ventilators. DAVIES, L. G. April 10, 1942, Nos. 4775 and 12415. [Class 137] A ventilator adapted to admit air to and extract air from an enclosure comprises external windcatching scoops, one collecting the incoming air, and the other exhausting the used air through separate passages in one aperture, baffles, gauzes or metallic wool being used to prevent passage of light or water to the enclosure. In Fig. 2, scoop 30 directs the air through baffles 37 to passage 32 leading to the interior from which the air is extracted through an oppositely directed passage 33, baffles 37, and extractor scoop 31. This form of ventilator is provided with sheet-metal stampings 34, 35 which fit into a port-hole in which the assembly is secured by a pair of clamps 38 and wing-nuts 40. The louvres may be of the kind described in Specifications 537,542, 539,158 and 544,635. A pivoted plate 59, Fig. 7, held in a medium position by springs 79 is forced back by entering water which passes straight through. Hinged plates 61, 62 direct the air, and, when a deadlight is closed, are pressed back against the louvres. A modification, Fig. 11, especially suitable for the roofs of vehicles comprises louvres 83 in the exterior inlet and outlet passages which are also fitted with gauze screens 82, plates 90, 93 dividing the ventilator into halves. Metal guards 87 are provided, and a control valve 94. In Fig. 19, baffles 112 projecting alternately from opposite sides of the air passage are provided. Where double gauze screens are fitted, the space between them may be filled with medicated cotton wool. Gauze screens or packs of wire wool may be used to replace the louvres.
Patent GB-538996-A (GB)
Title: Improvements in counter current froth flow flotation system
IPC: B03D1/22
Filed: 1940-03-14
Abstract: 538,996. Concentrating ores. THOMPSON, J. W., BOOTH, L. E., and GALIGHER CO. March 14, 1940, No. 4776. [Class 82 (ii)] A froth flotation process comprises aerating an elongated body of pulp flowing slowly longitudinally and causing the froth to flow by gravity along the pulp surface in the reverse direction to the pulp flow. The apparatus shown comprises four cells 41-44 separated by comparatively low baffles 67 and each provided with an impeller 56 and air supply 58, pulp being admitted laterally to the end cell 41 and tailings being discharged over a weir 71 at the opposite end. The degree of aeration and consequently of froth generation increases successively from the cell 41 to the cell 44, the resulting body of froth being deeper at the end 44 and therefore flowing towards the end 41 where it is discharged over a weir 51. Some of the froth may if desired be discharged laterally. Various arrangements of plant are described comprising sets of such cells for rougher concentrating, retreating, and cleaning. Specification 489,497 is referred to.
Patent GB-608161-A (GB)
Title: Cross-slide mechanism for multiple spindle lathes
IPC: B23Q5/34
Filed: 1946-02-15
Abstract: 608,161. Lathes. FAIRWEATHER, H. C. C. (National Acme Co.). Feb. 15, 1946, No. 4869. [Class 83 (iii)] In a multiple-spindle lathe for machining a pair of articles from a double-length blank, a cutting-off tool is operative only on the work carried by each alternate spindle. The lathe is similar to that described in Specification 529,547 and comprises tool-carrying slides 5, 5<SP>1</SP>, 6, 6<SP>1</SP>, 7, 71, a carrier 8 for end-working tools and an indexible spindle carrier having six rotary spindles 3 with alternately arranged chucks A for gripping the blank externally and chucks B for gripping the blank internally. A cutting-off tool 35 is mounted on the slide 6 and, in order to provide a loading station X, Fig. 5, the slide 7 carries no tools. The blank is first mounted in an external chuck A at the loading station and during indexing of the spindle carrier is operated on by the tools on the slides and the carrier 8. When the loading position is again reached, the blank is removed, reversed and transferred to the next succeeding chuck, which is an internal chuck B. As the carrier is again indexed, the other half of the blank is machined by the same tools as the first half and, when the slide 6 is reached, the cutting-off tool is moved into position to separate the blank into two completed halves. As the slide 6 is moved only when an internal chuck is opposite, the cam drum 31, Figs. 4, 5, by which it is operated is rotated at half the speed of a cam-shaft 30 by means of epicyclic gearing comprising a gear 44, Fig. 8, on the shaft, internal teeth 40 on the drum and idler gears 41 carried by a bracket 42 which is prevented from rotating by a stud 43. When the alternate operation is not required, the stud 43 may be removed and the drum fixed to the shaft in any suitable manner.
Patent GB-368495-A (GB)
Title: Improvements in or relating to sheet metal radiators for heating buildings
IPC: F28D1/03
Filed: 1931-02-16
Abstract: 368,495. Radiators for heating buildings. CASTIAUX, R., 106, Cours Victor Hugo, Bordeaux, France. Feb. 16, 1931, No. 4873. Convention date, Feb. 17, 1930. [Class 64 (ii).] A radiator comprises a heating element consisting of thick metal sheets 1 having vertical corrugations 2 and welded together to form vertical channels 3 between upper and lower horizontal headers with inlet and outlet connections 4 for the heating fluid. An outer casing consists of thin sheets 5, the bottom of the corrugations of which are welded to the crests of the corrugations of sheets 1 thus forming vertical channels open at the top and bottom for the circulation of air.
Patent GB-142587-A (GB)
Title: Improvements in walls or other structures
IPC: E04B2/42
Filed: 1919-02-27
Abstract: 142,587. Ransford, R. B., (Soc. d'Etude Technique et d'Entreprise Mixedstone). Feb. 27, 1919. Double walls.-A hollow or double wall &c. is built of plain and T-shaped blocks of artificial stone or concrete, a course on one side being of plain and T blocks or of T- blocks only, while the opposite course is composed of plain blocks or of plain and T blocks. The courses on one side are alternately of plain blocks 6 and of plain and T blocks 7. The T-blocks may be displaced horizontally from one course to another. The outer faces of the T-blocks may have grooves, and spaces may be left between the plain blocks to receive reinforeing-rods 10 which are grouted in and connected by straps &c. 12. The distance between the walls may be varied and plain blocks used between the legs of the T-blocks and the opposite wall, Fig. 12. The blocks may be formed with internal spaces and have tongues and grooves formed on their meeting edges.
Patent GB-846983-A (GB)
Title: Sliding bolts for doors
IPC: E05C1/04
Filed: 1958-02-15
Abstract: 846,983. Sliding bolts. CLIFFORD BROS. Ltd., and CLIFFORD, R. Feb. 11, 1959 [Feb. 15, 1958], No. 5008/58. Class 44. In a foot-operated sliding bolt mechanism suitable for use on garage doors, the square or rectangular section bolt is made in two parts 11, 12 having the same crosssection joined by an intermediate stem 14 surrounded by a compression spring 15 which operates between the lower end of the top portion of the bolt 12 and an abutment 16 through which the stem 14 can slide and which is secured in a casing 10 by a' grub screw 17. The portion 12 of the bolt is recessed at 19 to accommodate a detent 20 which is supported on its lower end edge in an undercut in the recess. Fixed to the detent 20 is a raised portion 22 which is adapted to pass through the aperture 18 in the casing and register with the top edge of this aperture, the detent being biased by a spring 23 located in a seating 24 in the recess of the bolt such that the detent will catch in the aperture 18 when the bolt is in the operated position. Heads 13, 25 are attached to the bolt and detent respectively for shooting or releasing the bolt mechanism by means of the foot, the bolt withdrawing under the action of the spring 15 when the detent 20 is released.