baber/WOPTO huggingface dataset:
Patent GB-338185-A (GB)
Abstract: 338,185. Handoll, P. G. Aug. 10, 1929. Cleaning, fluid-pressure processes for. - In a boiler cleaner of the kind comprising a blower tube 10 which is rotated by a chain-driven wheel 22 and from which steam &c. is projected in jets against the boiler tubes, the steam supply to the blower tube is adapted to be controlled by a valve 31 which is opened or closed respectively before the blower tube is set in motion. The blower tube is disposed within a casting 2 mounted upon the boiler wall 1 and is rigidly connected to a hollow member 6 communicating with the interior of the housing 8 of the valve 31, the housing 8 being carried by an arm 3 projecting from ihe said casting and locating a hollow member 35 formed with a seating 36 for the valve and also steam ports 39. The member 6 has a toothed wheel 5 integral therewith which is geared to a pinion 21 carried by the chain wheel 22 through pinions 14, 16 mounted on a shaft 15 disposed within the hollow arm 3, while the wheel 22 and spindle 20 of the pinion 21 are secured to a rocker member 18 which is pivotally mounted upon an extension 17 of the said arm 3. The rocker member is formed with a camtrack 19 which accommodates a roller 27 carried by a guide block 29 on the spindle 30 of the valve 31. The valve 31 is free to slide upon the inner reduced end of the spindle 30 between a coned shoulder 33, forming an auxiliary valve adapted to be received by and seat in the mouth of an aperture 31a in the valve, and a transverse pin 34, and is provided with an aperture 40 leading from the peripheral front side thereof to the rear. In operation, and with the valve 31 closed, rotation of the wheel 22 will cause the rocker member 18 to move and actuate the roller 27 to withdraw the shoulder 33 of the valve spindle from its seating in the valve and allow the steam which has accumulated at the rear of the valve through the aperture 40 to escape to the interior of the member 6, whereupon the pressure of steam on the peripheral front portion 31<b> of the valve becomes effective in rapidly lifting the latter from its seat. Further rotation of the wheel 22 will move the roller 27 along the entire length of the cam track 19 and cause the spindle 30 to. open the valve fully, after which continued rotation of the wheel will cause the pinion 21 to rotate the blower tube, the rocker member in the meantime being held relatively fixed by the cam roller. Rotation of the chain wheel in the opposite direction will first cause the cam and roller 19, 27 to function to close the valve 31, and then return the blower tube to its original position.
Patent GB-1360280-A (GB)
Title: Frame structures
IPC: E04B1/21
Filed: 1971-07-20
Abstract: 1360280 Building frameworks ISHIKAWAJIMA-HARIMA JUKOGYO KK 20 July 1971 [10 Aug 1970] 33947/71 Heading E1W [Also in Division F4] . . A reinforced concrete and/or steel building framework includes ladder-like columns 1 formed from a number of components arranged one on top of the other, some of the columns 1 being arranged in opposition to form units 'a' using cross-braces, e.g. 5, Fig. 4, and others being interconnected and connected to the units by single beams, e.g. 6, Fig. 6, all the connections involving the use of overlapping plates, e.g. 13, 15 bolted to the Components. The beams 6 are connected to the column components 3' by angle plates 17, and the column components, which may have more than one cross-member, are interconnected by plates 13, Fig. 3, apertured spigoted and socketed blocks, 10 and 9 respectively, being set into the components to receive the bolts.
Patent GB-770637-A (GB)
Title: Method of and apparatus for undulating rods for electrode structures
Inventor: ZAPHIROPOULOS RENN
IPC: H01J19/00
Filed: 1954-11-24
Abstract: 770,637. Colour television tubes. CHROMATIC TELEVISION LABORATORIES, Inc. Nov. 24, 1954, No. 34024/54. Class 39(1). [Also in Group XI] Undulated or crimped rods strips or ribbons interwoven in fine grids structures e.g. colour focusing and deflecting grids in cathode-ray tubes, act as vibration dampers. A spreader bar is first interleaved between the tautened wires of the grid, alternate strands being displaced oppositely and a vitreous rod or glass ribbon inserted along the edge of the spreader bar. The latter is removed leaving the vitreous rod or ribbon under tension and local application of heat softens the vitreous material and the rod or ribbon assumes a zig-zag shape which is retained on cooling. The strands of the grid are stretched between hooks 25, 33 or anchoring bars 23, 31 respectively the latter being separated by an insulating layer. Glass bars 17 space the wires from the screen base plate 15. After the vitreous rod 37 has been interleaved and the spreader bar withdrawn, the rod is softened by close heating from a heating filament 43 in a ceramic holder 41. The heating block may be caused to travel along the wire at a controlled rate by means of pulleys and an electric motor. Three damping rods may be interleaved in an average size grid. The grid and rod spacings may be non-uniform. Specification 770,636 is referred to.
Patent GB-409062-A (GB)
Title: Improvements in or relating to sliding panels for sunshine roofs of motor cars
IPC: B60J7/053
Filed: 1932-12-01
Abstract: 409,062. Vehicle opening-roofs. PYTCHLEY AUTOCAR CO., Ltd., and MOBBS, R. O., Trading Estate, Slough, Buckinghamshire. Dec. 1, 1932, No. 34056. [Class 108 (i).] In vehicle roofs having a closure comprising a sliding panel the latter is constructed so as to have different degrees of flexibility along its length from front to rear, the rear end having the greater flexibility. As shown the panel frame constructed with front and rear cross members 4, 6, intermediate cross members 10 and side flexible members 7, 8 in which depending tongues 12 are arranged to engage the usual guides 14, is provided with a stiffening rib or member 16 of thin flexible metal with tapering wing portions 18 to vary its flexibility. In cases where the front member is built up with parts 4<a>, 4b, 4<c> to house the locking spindle 5, the member 16 has its wings 18 set back from the end which is connected to the part 4<c>. In place of or in addition to the tapering wings perforations of graduated size may be provided in the member 16; and moreover stiffening flanges or the perforations may be provided on the side members 7, 8.
Patent GB-782749-A (GB)
Title: Improvements in or relating to gating circuits for electrical signals
Inventor: WALLS WALTER RICHARD
IPC: H03K17/54
Filed: 1954-11-24
Abstract: 782,749. Electric discharge-tube gating circuits. CINEMA-TELEVISION, Ltd. Nov. 23, 1955 [Nov. 24, 1954], No. 34064/54. Class 40 (6). An electric gating circuit for passing signals from an input to an output terminal only when a second input terminal receives an appropriate potential comprises three cathodecoupled electric discharge tubes to the grid of the first of which the signals to be gated are applied and with its anode coupled to the grid of the second so that the first and second tubes operate as a trigger pair, when the grid voltage of the first tube is varied over a predetermined range. The trigger action is prevented when the third tube is operative. The Figure shows a gating circuit in which tubes 5 and 10 are coupled to form a trigger circuit of the type described in Specification 552,301, [Group XL], the grid potential of tube 5 being adjusted by potentiometer 7 so that the trigger action is performed by either positive or negative signals applied to the input terminal 1, an output signal being derived at terminal 2. When however tube 11 is rendered conductive by a control signal applied at its grid terminal 3 the trigger action is prevented and no output signal appears at terminal 2. The time constant of the network 14, 15 is preferably made equal' to the time constant of the network comprising resistor 16 and the stray and interelectrode capacitances associated with the grid of tube 10.
Patent GB-1003824-A (GB)
Title: Thermally responsive control device
IPC: H01H37/48
Filed: 1961-09-25
Abstract: 1,003,824. Temperature-responsive actuating elements. GARRETT CORPORATION. Sept.25, 1961 [Sept. 26,1960], No. 34301/61. Heading G1D. [Also in Divisions F1 and H2] A thermally responsive device for use in the exhaust gas stream of a gas turbine engine for indicating or preventing flame-out conditions comprises a pair of tubes 32, 33 served together at one end 34 and having their other ends respectively connected to a rigid support 38 and to the control mechanism, which as shown is an electric switch 30, the coefficients of thermal expansion of the tubes 32, 33 being sufficiently close so that when at uniform temperature in the operating temperature range of 400‹-1200‹F.the relative movement between them is not sufficient to actuate the control mechanism but a rate of change of temperature of 200‹F. per second, such as occurs during flame-out, causes tube 32, which has a higher thermal expansion and conductivity, to contract more quickly than tube 33 to cause such actuation. Tubes 32. 33, may be made from cobalt and nickel based alloys respectively. The contact 56 is spring pressed to engage fixed contact 55, the latter being adjustable by screw 65, and a spring actuating member 52 normally biases contact 56 in a switch opening position. If the temperature drops rapidly, or if the tubes 32, 33 are at a uniform temperature below 400‹F. a ball ended extension 70 on tube 33 raises member 52 allowing contacts 56, 55 to engage and a circuit may be completed for operating the engine ignition devices.
Patent GB-208379-A (GB)
Title: Vehicle wheel
IPC: B60B9/14
Filed: 1922-12-16
Abstract: 208,379. Fulton, C. W. Dec. 16, 1922. Spring wheels.-The body and tread portions of vehicle wheels are made in a single piece 1 of rubber or rubber composition and lateral stability is secured by metal side plates 2 attached to the rubber part 1 only at the centre and supporting it at isolated points so that vertical displacement of the rubber body is permitted without frictional wear between it and the metal plates. In the construction described, the rubber body is formed with annular ridges or protuberances 5, preferably increasing in depth towards the tread, and resting on the side plates 2 which are slightly dished and may have peripheral flanges 4 bearing on shoulders on the rubber body. The rubber may be of decreasing hardness from the centre outwards as indicated by the. shading at A, B, C. The tread is reinforced by fabric 10 and may have transverse and vertical apertures 8, 9. Specification 200,562 is referred to.
Patent GB-507298-A (GB)
Title: Apparatus for use in decontaminating the oil contaminated condensate from the condensers of steam engines, and other oily waters
IPC: B01D17/02
Filed: 1938-11-25
Abstract: 507,298. Filters. ADLER, R. Nov. 25, 1938, No. 34370. [Class 46] Apparatus for removing oil from condensate or other oily water comprises a container for ieceiving activated carbon, having an inlet for oily water at one side of the carbon and an outlet at the other side, a fluid-actuated ejector being provided for ejecting the carbon as it becomes saturated with oil. In the construction shown in Fig. 1, a chamber A contains a layer of activated carbon placed between two perforated plates 1, 3. The water to be cleaned is admitted through a tube 4 and the purified liquid flows out through a tube 6. To cleanse the filter valves 5b and 6a are closed and valves 7a and 8a are opened to permit liquid under pressure to pass through an injector nozzle 7b and through a pipe 8. Carbon saturated with oil is entrained in the liquid. In a modification shown in Fig. 2, the water to be cleaned is admitted from a tube 12 and the purified liquid leaves by way of tube 14. To cleanse the filter the water is diverted up a tube 15 and through tube 15a to an injector nozzle D and causes the discharge of the oil-saturated carbon through a pipe 10. The. nozzle D is provided with a shroud 19. Water may be supplied to a perforated ring 17 to assist downward displacement of the carbon which is replenished from a hopper E.
Patent GB-308191-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B27/00
Filed: 1927-12-19
Abstract: 308,191. Ricardo, H. R. Dec. 19, 1927. Spray carburettors. - In engines wherein a rich mixture is drawn into the cylinder during the first part of the suction stroke, the further air required for combustion entering thereafter, the rich mixture is formed in a carburettor or in a separate spraying device for each cylinder. In the latter case the liquid fuel is fed to a well G<3> in each device, the well connecting to the nozzle G<5> and open to the air admission passage J. Long pipes J' with flared ends are connected to the admission passages to prevent blowing back of rich mixture into the engine room &c. when the pressure within the cylinders rises. Liquid fuel to the supply pipes H is controlled by a valve H<2> in the service pipe H<1>; this valve is interconnected with throttles F in the air pipes so that the fuel may be in part cut off before the air supply is decreased. A dashpot connection is shown for this purpose; a spring K<2> tends to move the valves to their full open position.
Patent GB-750453-A (GB)
Title: Improvements in or relating to barrel-like structures made of wooden staves
IPC: B27D1/08
Filed: 1953-12-10
Abstract: 750,453. Furniture joints. DRUMMOND, E. P. Nov. 16, 1954 [Dec. 10, 1953], No. 34426/53. Class 52(2). [Also in Groups X and XVII] Wooden staves used in the construction of seats, umbrella stands, &c., are assembled by forming a groove 10 in both longitudinal edges of each stave 12, but not extending to the ends thereof, and by then glueing jointing strips 13 into adjacent grooves during assembly so that the jointing strips are completely concealed.
Patent GB-307560-A (GB)
Title: Improvements in and relating to percussion caps and the like
IPC: C06C7/02
Filed: 1928-09-19
Abstract: 307,560. Dickson, W., and Imperial Chemical Industries, Ltd. Sept. 19, 1928. Varnishes.-A solution of non-explosive esters or ethers or mixed esters and ethers of cellulose, for example a solution of 2.7 grms. of cellulose acetate in 80 ccs. of acetone and 20 ccs. of ethyl lactate with 0.3 grms. of dibutyl phosphate is used to coat percussion caps for ammunition. Benzyl cellulose is mentioned as a. suitable cellulose ether.
Patent GB-797145-A (GB)
Title: Improved milk cooler
Inventor: BENHAM WILLIAM JAMES
IPC: A01J9/04
Filed: 1955-12-01
Abstract: 797,145. Coaling liquids. BLOW, Ltd., J. J. Dec. 3, 1956 [Dec. 1, 1955], No. 34478/55. Classes 29 and 64(3) A milk cooler for use with a milk can 1 comprises a chamber 10 for cooling liquid e.g. water, extending beyond the periphery of the can and provided with outlets 36 whereby jets of water are directed on to the outside of the can, and a chamber 22 for the passage of milk therethrough and into the can, of dimensions such that its periphery lies within the neck of the can, and in direct heat exchange with the water chamber and disposed below it, the milk chamber having a central inlet and peripheral outlets 38 .and being so designed that milk passes through it in a thin layer. Milk enters the cooling head at 3 and passes through an annular chamber 16 before reaching the milk chamber from where it is discharged against the inside wall of the can. A vacuum is maintained in the milk can through pipe 18 and there is a centrally arranged airbleed tube 25. Float operated means arranged on the bleed tube may cut off the supply of milk when the can is full.
Patent GB-891999-A (GB)
Title: Improvements in or relating to stringed musical instruments
IPC: G10H1/34
Filed: 1959-10-12
Abstract: 891,999. Electrophonic musical instruments; stringed musical instruments. JEFFERY, A. W., and ANDREWS, E. H. Sept. 28, 1960 [Oct. 12, 1959], No. 34495/59. Drawings to Specification. Class 88 (2). The finger-board of a stringed instrument comprises a plurality of electrical switch means, each arranged to be operable by the action of stopping a string. In a guitar or like instrument, with or without electrical amplification, each switch means may consist of a contact mounted in a fret so as to be engageable by the associated metal string, or it may be a pressureoperated switch mounted between adjacent frets. Operation of a switch means causes an electrophonic instrument to sound a corresponding note. There may be either a single electrophonic instrument associated with the stringed instrument or a separate one for each string, each with its own stop switches and other controls. The finger-board may carry additional switch means corresponding to the notes sounded by the open strings.
Patent GB-1528111-A (GB)
Title: High-current current-limiting circuit interrupter having electrodynamically operated arcing contacts
IPC: H01H9/38
Filed: 1976-08-18
Abstract: 1528111 Automatic circuit breakers MERLIN GERIN 18 Aug 1976 [26 Aug 1975] 34501/76 Heading H1N A current limiting circuit breaker comprises main contacts 12, 14, 22 across which are connected arcing contacts 30, 32, the resistance of the current path through the arcing contacts being greater than that through the main contacts, and one of the main contacts 22 being movable and one of the arcing contacts 30 being movable, these two movable contacts being mechanically interconnected by a link 28, and biased towards their contacts closed positions by a spring 38, the arrangement being such that when excess current flows through the circuit breaker a plunger 56 is released to strike the main movable contact 22 sharply and move it rapidly to open the main contacts, the movable arcing contact 30 moving with the main movable contact but the current path through the arcing contacts being retained because the co-operating arcing contact 32 is displaced by a spring 50 and a first electrodynamic force arising in a loop 44, 46, 48, due to the current through the arcing contacts and moves with the movable arcing contact 30, but after the main contacts 12, 14, 22, have opened the excess current is diverted and passes through the arcing contacts when a second electrodynamic force arises between the conductors 24, 35 leading to the arcing contacts forcing them apart to break the current path. Thus the main and arcing contacts operate sequentially. The loop 44, 46, 48 producing the first electrodynamic force may be fixed, or may be on the movable arcing contact carrier 24, Fig. 2, not shown. The main contacts may be in the form of a rod 22 bridging two fixed contacts 12, 14, or may be a pivoted arm, Fig. 3, not shown.
Patent GB-1523132-A (GB)
Title: Recovery of flexible and rigid materials from scrap polyvinylchloride its copolymers and congeners
IPC: B29B11/00
Filed: 1975-08-20
Abstract: 1523132 Recovering PVC HORIZONS RESEARCH Inc 20 Aug 1975 [23 Aug 1974] 34673/75 Heading C3L PVC is recovered from scrap by comminuting, dissolving in a polar aprotic, solvent, filtering, precipitating by addition of water, a saturated hydrocarbon boiling below the solvent or a mixture of such a hydrocarbon and a C1-C4 alcohol, and recovering the precipitated material. Where the precipitant used is an organic liquid any plasticizer is recovered from the liquid product which is separated into its constituents for recycle or reuse.
Patent GB-305917-A (GB)
Title: Improvements in moulds for aluminothermic or the like welding
IPC: B23K23/00
Filed: 1928-11-26
Abstract: 305,917. Brewitt, W., and Akt.-Ges. fur Aluminothermische und Elektrische Schweissungen. Nov. 26, 1928. Moulds; clamping moulds. - Articles for example rails, to be welded by the thermoaluminic process have the ends s<1>, s" to be joined separated by a space that is covered with strip iron a, gates a', Fig. 2, being provided for the inflow of metal. The strip is surrounded and kept in place by refractory material such as asbestos or fireclay e contained in a sectional U- shaped casing b, c, d held together by a screw clamp (not shown) and by wedges v<1>. The pouring block contains a central ridge f<1> to distribute the metal to the channels f<11> from which it flows directly over the rail ends. In a modification the strip metal a is replaced by sectional U-shaped members a<2>, a<3>, a<4>, Fig. 3 so that a reinforcing bead is cast round the joint. The sections are connected by a cap at q, by a ring at t, and by a wire w, and are surrounded by plastic material contained in a sectional casing held together by rings h<1>, h<2>, h<3>. Preheating of the mould as by supplying hot gases by a blower may take place through the ring t the opening being afterwards closed by a plug p. The mould first described may also be preheated. A lateral recess m on the pouring block delivers metal on either side of the ridge f<1>.
Patent GB-517054-A (GB)
Title: An improved latch or lock
IPC: E05B63/20
Filed: 1938-11-29
Abstract: 517,054. Latches. SPIRAL LOCKS, Ltd. Nov. 29, 1938, No. 34764. Convention date, Dec. 23, 1937. [Class 44] In a latch or lock of the kind in which the main bolt 13 is normally retracted, but is projected by contact of a striking bolt 1 with a striking surface on the jamb or frame, the main bolt 13 is connected to an actuating member 18 which can be operated by a handle, and the arrangement is such that when the striking bolt makes contact with its striking plate, the main bolt is partially projected and the actuating member 18 is moved into an operative position and effects complete projection of the main bolt, while when the latter is to be retracted, member 18 is operated by the handle and partially retracts the main bolt, complete retraction of which, together with the resetting of the striking bolt, being effected by contact of the head of the main bolt with its striking plate. The main and striking bolts are inter-connected by a lever 6, pivoted to the casing at 7, and having pin and slot connection with each bolt, the pin 12 on the main bolt working in a wide slot. The member 18 is pivoted to the pin 12, and has a slot 19 in which work's a fixed pin 20, the slot being shaped as shown and having a notch 22 into which pin 20 can enter to prevent retraction of bolt 13. The follower 26 has a tooth 25 which engages the weighted end of member 18 to lift the latter and retract bolt 13, and a weight 30 which brings it to the position of Figs. 1 and 5 on release of the handle. The latch plate 31 has a projecting striking member 33 and a slot to receive the nose of bolt 13, which is bevelled on the side remote from the door frame.