baber/WOPTO huggingface dataset:
Patent GB-1381393-A (GB)
Title: Gerotor-type rotary fluid pressure devices
IPC: F04C2/10
Filed: 1972-02-17
Abstract: 1381393 Rotary positive-displacement machines DANFOSS AS 17 Feb 1972 [17 Feb 1971] 7397/72 Heading F1F A gerotor-type pump, or motor, has a main shaft 16 coupled to an externally-toothed wheel 1, which co-operates with a fixed internally-toothed ring 2, by a splined shaft 20 and carrying a tubular valve-element 23 with grooves 34, 35 to control the flow of fluid between inlet and outlet passages 12, 13 and the working chambers associated with the wheel 1 and ring 2. To compensate for torsional play the element 23 slides between stops 27, 28 on the shaft 16 and has a slot 30 engaging with a pin 29 fixed to a shaft portion containing a sealing ring 24. The angular position of the element 23 relative to the shaft 16 is thus adjusted automatically in accordance with the pressure differential between the passages 12, 13, which communicate continually with annular spaces 40, 41 defined axially by the stops 27, 28 and end-faces 38, 39 of the element. A second embodiment differs mainly in that the element 23 is replaced with a valve-element 44, Fig. 4, which slides circumferentially on the shaft 16 and has tapered plungers 48 urged by fluid-pressure into corresponding recesses 50 in the shaft. The circular pitch of the plungers differs slightly from that of the recesses. Due to the cam action of the plungers the angular position of the element relative to the shaft is adjusted automatically in accordance with the inlet and outlet pressures in passages 45, 46.
Patent GB-1135171-A (GB)
Title: Improvements in or relating to piezo-electric crystal assemblies
Inventor: LAURENSON LAURENCE
IPC: H03H9/05
Filed: 1966-02-21
Abstract: 1,135,171. Piezo - electric resonators. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. 15 Feb., 1967 [21 Feb., 1966], No. 7431/66. Heading H1E. A piezo-electric crystal assembly comprises electrically-conductive metal mounting plates 2, 3 attached by adhesive to the opposite faces of the crystal 1. The crystal, e.g. an AT cut quartz plate, may be circular or square and is provided with central gold electrodes 4 which make contact with the mounting plates. The mounting plates may be of copper and are apertured to expose the central region of the crystal. They may be provided with mounting tags 3. The adhesive may be an epoxy resin loaded with silver.
Patent GB-507689-A (GB)
Title: Improvements in or relating to casement windows
IPC: E06B3/10
Filed: 1938-03-10
Abstract: 507,689. Casement windows. SHELBOURN, R. H. March 10, 1938, No. 7446. [Class 20 (iii)] A casement window comprises a fixed frame formed with double rabbets d, e, for the reception of one or more rabbeted sashes f, symmetrical grooves g<1> of semicircular or U shaped cross section, and parallel to the plane of the window, being formed in the angles of some or all of the sash rabbets y, and similar grooves d<1>, perpendicular to the plane of the window, in the angles of the corresponding outermost rabbets d of the fixed frame. Grooves a<1>, blare also formed in the undersurfaces of the head and transom rails a, b, respectively, and the edges of the sashes may have grooves f<2> formed therein. Specification 458,948 is referred to.
Patent GB-1161157-A (GB)
Title: Thread Cases for Lock-Stitch Sewing Machines.
IPC: D05B57/26
Filed: 1967-02-16
Abstract: 1,161,157. Sewing machines. J. & P. COATS Ltd. 16 Feb., 1967 [16 Feb., 1966], No. 7516/67. Heading D1G. The bobbin case in a lock stitch sewing machine has a thread storage pocket defined by a circular wall and an end wall, and means are provided retaining the bobbin case within a recess in a bobbin case carrier by removably engaging a portion of the thread case carrier. A radially-slidable latch plate on the end wall of the bobbin case is spring- biased to an end position, whereby a nose 25 on said plate may enter an aperture 27 in the side wall of a stationary bobbin case carrier, and be retained therein by a rim 28 of the bobbin case carrier. A lever 26, associated with the latch plate, may be raised for withdrawing nose 25 from aperture 27 to release the bobbin case. The pocket in the thread case may either have a central pin for journalling a bobbin, or be without the pin for accommodating a thread cop.
Patent GB-179735-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/00
Filed: 1921-03-09
Abstract: 179,735. Babcock & Wilcox, Ltd., (Soc. Franþaise des Constructions Babcock et Wilcox). March 9, 1921. Atmospheric gas burners; gas supply. - In a gas burner, adapted for use with gas of variable quality, gas is supplied through a valve E to an annular space D provided with straight or helicoidal vanes D<1> located between a cone G and the cylindrical wall D<2> of the burner. The internal air, controlled by a valve disc A, is admitted to a central tubular member B and mixes with the gas in its passage between the vanes. The main air supply enters a chamber C, is heated by contact with the furnace walls, and passes through orifices L into a box K through which it flows to its junction with the gaseous mixture issuing from the multi-vaned passage, the corners of the box being shaped to direct the air towards the issuing mixture. The cone G may be moved endwise for regulating the size of the flame by means of a screw-threaded spindle G<1>, provided with a locking-nut G<2>. A dust trap F and an inspection window H are provided.
Patent GB-730427-A (GB)
Title: Improvements in or relating to a system for the automatic enumeration of objects andof surfaces by number and by dimensions
IPC: H03K21/00
Filed: 1953-03-18
Abstract: 730,427. Escapement mechanisms. CHARBONNAGES DE FRANCE. March 18, 1953 [May 12, 1952; Jan. 9, 1953], No. 7543/53. Class 80 (4). [Also in Groups XL (b) and XL (c)] An escapement device incorporates electromagnetically operated detents. As shown a scanning device for moving a film-holder 4b past a light source 1 (see Group XL (b)) comprises a platform 4 movable laterally along slides 22a by a motor 16 whose direction of motion is reversed by the operation of switch contacts (not shown) at the end of each traverse. The platform 4 also carries two toothed racks 20a, 20b in staggered relationship. When the platform reaches the end of its forward traverse a switch is operated to withdraw electromagnetically the detent 19a from the rack 20a thereby allowing the platform 4a, carrying the film holder, to advance a distance of half a tooth, through the action of the spring 23; whereupon the detent 19b engages a tooth of the rack 20b to hold the platform 4a during the backward traverse. At the extreme position the detent 19b is similarly withdrawn from the rack 20b to permit the platform 4a to advance again and so on.
Patent GB-933455-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: BAUER STEFAN GEORGE
IPC: G21C1/20
Filed: 1961-03-01
Abstract: 933,455. Fuel elements. ROLLS-ROYCE Ltd. Feb. 7, 1962 [March 1, 1961], No. 7555/61. Drawings to Specification. Class 39 (4). In a steam-cooled reactor the fuel rods are mounted within an open-ended aluminium or magnesium tube. The tube thickness is half that necessary to support the internal pressure due to the coolant steam and a tightly-wound helix of zirconium wire is applied to the outer surface to provide the additional strength. A thin stainless steel inner wall isolates the steam from the aluminium tube and is supported against the steam pressure by helium or carbon dioxide, under pressure, between the steel and aluminium. In addition, a heat shield may be mounted within the gas space.
Patent GB-471918-A (GB)
Title: Improvements in or relating to devices suitable for removing folds, wrinkles or the like from shoe uppers
IPC: A43D95/02
Filed: 1936-03-13
Abstract: 471,918. Boots and shoes. BRITISH UNITED SHOE MACHINERY CO., Ltd., RICKS, F., and CHOICE, F. C. March 13, 1936, No. 7579. [Class 17 (i)] Ironing.-A tool for smoothing shoe uppers comprises means for producing a hot blast which may be directed on the work, of the kind described in Specifications 341,668, 373,674, and 436,889, [all in Group XI], and a heated smoothing iron. The iron is movable to and from operative position, and in the former position is heated by the blast while in the latter position it is heated by conduction. The nozzle 5 of a hot air blast apparatus manipulated by a handle 7 and of the kind described in the prior Specifications, carries a clamp 15 having on each side a boss 14 recessed to house the end of a link 11 pivoted on a pin 12 and connected to a smoothing iron 1. The iron has an extension 17 pivoted to a hand lever 19 carrying a pin 27 retained in a notch at the end of a bracket 21, secured to the handle, by a spring 3. The lever is shaped to be engaged by the index finger. The iron is brought into use as required by counterclockwise movement of the lever 19, being heated while in operative position by the blast, and while in inoperative position, by conduction.
Patent GB-307503-A (GB)
Title: Improvements in boiler feed water supply apparatus, intended particularly for locomotives
IPC: F22D1/42
Filed: 1929-03-08
Abstract: 307,503. Friedmann, L., Friedmann, M., and Schopp, N., (trading as Friedmann, A., [Firm of]). March 10, 1928, [Convention date]. Feedwater, supplying; hot-water storage apparatus. - In a feed-supply plant for locomotives, comprising a tank 8 for storing water preheated by exhaust steam, water is supplied to the boiler through the feed pipe 7 either from the storage tank or from the tender. Water from the tender is admitted to the exhaust steamoperated injector 1, through a valve 19, which is maintained in its open position by the pressure of live steam acting on a piston 20. When a valve 34 is opened, the feed flows through a pipe 9 to the storage tank, which is then under boiler pressure. If then it is desired to feed the boiler, a valve 25 is opened and the valve 34 closed, thus allowing live steam to pass through a pipe 4 to a live steam nozzle 21 in the feed injector, and the feed to flow through the pipe 7 to the boiler. When the steam regulator is closed, water may be supplied to the boiler by opening the valve 25, thereby allowing live steam to open a valve 27 by the upward pressure on a piston 30, which is now not subjected to counter pressure, and to pass through a pipe 18 to the storage tank. The tank then empties into the boiler by gravity.
Patent GB-592429-A (GB)
Title: Improvements relating to metal framed glazed structures
IPC: E04D3/08
Filed: 1945-03-27
Abstract: 592,429. Glazing. WILLIAMS & WILLIAMS, Ltd., and GARTHWAITE, J. K. March 27, 1945, No. 7671. [Class 20 (iii)] The web of a metal glazing bar 10 is embraced by a sheet metal U-shaped strip 11 with resilient splayed ends 11a adapted to exert pressure on glazing panels 13 when the strip is pressed down to cause complementary holes 10e, 11e in web and strip to register for insertion of a headed pin 12 which has portions 12d on each side of a middle section 12d of different diameter. A pivoted end portion 12c in pendent position co-operates with a domed washer 14 to lock the pin against withdrawal or a forked washer may engage a neck portion remote from the head. In other modifications headless pins have intermediate or end portions of reduced diameter, or a two-headed pin has reduced necks bearing in both holes of the strip.
Patent GB-851008-A (GB)
Title: New amine salts of aromatic acids, their use in herbicidal compositions and processes for their production
IPC: A01N39/02
Filed: 1959-03-05
Abstract: The invention comprises aliphatic amine salts of chlorophenoxy and chloroalkylphenoxy acetic acids, alpha-propionic acids and gamma-butyric acids of the general formula: <FORM:0851008/IV(b)/1> where m is an integer from 1 to 3; Me is a methyl group and n is O or I; A is one of the following groupings, namely - CH2-, -CH (CH3)- and -(CH2)3-; and in which x, y and z are integers such that (x+y+z) is from 9 to 18, and when z = O neither x or y is less than 5, and when (y+z) = O the group -CxH2x+1 is a branched chain.  Efficient herbicidal compositions can be prepared from these salts (see Group VI).  The salts are themselves prepared by direct reaction between the free acid and the amine, or between the sodium salt of the acid and the hydrochloride of the amine.  The following amines are specified:-tripropylamine, tributyl amine, di-(2-ethylhexyl) amine, diamylamine, isodecylamine, and dimethyl-decylamine.  The following derivatives of acetic acid are specified:-4-chlorophenoxy; 2-methyl-4-chlorophenoxy; 2,4-dichlorophenoxy; 3,4-dichlorophenoxy; 2,4,4-trichlorophenoxy. The corresponding derivatives of alpha propionic acid and gammabutyric acid, with one exception (viz. 2,4,5-trichlorophenoxy butyric acid), are also specified.ALSO:Herbicidal compositions comprise salts of chlorophenoxy and chloroalkylphenoxy acetic acids,-alpha-propionic acids and -gamma-butyric acids of the general formula: <FORM:0851008/VI/1> where A stands for -CH2-, -CH(CH3)- or -(CH2)3-, with higher aliphatic amines, such-as tripropylamine, tributylamine, di-(2 -ethyl hexyl) amine, diamylamine, isodecylamine, and dimethyl-decylamine; the salt being dispersed in a liquid diluent such as agricultural oil or on a solid carrier such as clay or talc. When the concentrate is intended for emulsification with water, it should include one or more ionic or non-ionic surface-active agents, such as alkyl-aryl sulphonates, a polyoxyethylene ether of alkylated phenol, polyoxyethylene sorbitol tall oil condensate, polyoxyethylene sorbitol hexyloleate, and polyoxyethylene sorbitan ester of mixed fatty and resin acids.
Patent GB-1083424-A (GB)
Title: Improvements in or relating to primary and secondary batteries
IPC: H01M50/10
Filed: 1965-02-24
Abstract: 1,083,424. Battery cases. SOCIETE DES ACCUMULATEURS FIXES ET DE TRACTION. Feb. 23, 1965 [Feb. 24, 1964], No. 7723/65. Heading H1B. A battery container of moulded synthetic plastic has an outer side wall 1 that is wholly curvilinear and internal walls 2 that are preferably also curvilinear. The container may be shaped to fit any convenient shaped space and examples are disclosed.
Patent GB-758551-A (GB)
Title: Improvements in and relating to protective systems for electric induction furnace installations
Inventor: WILLIAMS JOHN DAVID
IPC: H05B6/28
Filed: 1954-03-17
Abstract: 758,551. Protective cut-out systems. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. March 10, 1955 [March 17, 1954], No. 7792/54. Class 38(5) In a protective system for an electric conduction furnace comprising means 7 for earthing the furnace charge 6 and a protective relay 11 which is connected either directly or through a transformer 20 between earth and the furnace circuit in series, or as shown in parallel through an impedance 19, with an auxiliary sources of current different from that of the furnace, so that an earth fault on the furnace circuit provides a circuit determining the operation of the relay, the relay circuit is connected with the auxiliary source by a circuit including current dependent resistances L, M so that the voltage applied to the relay circuit will be subject to a proportionally lesser variation than that to which the auxiliary source may be subject. The auxiliary source may be a direct current source or an alternating current source of a frequency different from that of the furnace circuit. The resistance L may be a metal filament lamp with a positive temperature coefficient, working at a voltage less than its rated voltage and causes the current flowing through it to vary less than the auxiliary voltage derived at a transformer 21. The resistance element M may be of a material having a negative resistance current characteristic to cause the voltage across the relay 11 to vary less than the current through the lamp L. The invention is described in its application to the various arrangements of Specification 506,665 in which the relay 11 may be energized by the auxiliary source through the fault path or in which the current through the relay is reduced on the occurrence of an earth fault as in the -arrangement shown.
Patent GB-1430348-A (GB)
Title: Nuclear reactor control device
IPC: G21C7/117
Filed: 1974-02-20
Abstract: 1430348 Controlling nuclear reactors INTERATOM, INTERNATIONALE ATOMREAKTORBAU GmbH 20 Feb 1974 [23 Feb 1973] 7804/74 Heading G6C A nuclear reactor control device comprises a number of spiders from the underside of each of which a group of parallel control rods extends, and an equal number of drives, one associated with each spider. In one example, spiders 1-5 are arranged with their semi-circular arms interleaving so that the rods of any given spider are fairly widely distributed over the core crosssection. The separate drives enable independent movement of each spider.
Patent GB-1044842-A (GB)
Title: Fluid coupling
IPC: F01P7/04
Filed: 1965-02-23
Abstract: 1,044,842. Fluid couplings. EATON YALE & TOWNE Inc. Feb. 23, 1965 [Feb. 25, 1964], No. 7819/65. Heading F2C. In a shear-type fluid coupling for driving an engine-cooling fan 18 wherein adjacent surfaces of a driving drum 11 and a driven casing 12 are provided with interdigitating annular projections to form a fluid shear space 56 in a working chamber 52, a reservoir 60 formed within the driving drum 11 is connected to the working chamber 52 by orifices 70 and valve controlled passages 78, 85 (Fig. 7, not shown), which control the flow of fluid between the reservoir 60 and working chamber 52 in accordance with the pressures therein to provide slow acceleration and rapid deceleration of the driven casing 12. During constant speed operation the pressures in the reservoir 60 and working chamber 52 are in equilibrium. Acceleration of driving drum 11 increases its speed relative to the casing 12 and thus increases the pressure in the reservoir 60 whereupon fluid is metered through the orifices 70 into the working chamber 52 until the pressures in the reservoir 60 and chamber 52 are again equalized and the speed of the casing 12 attains its new value. Since the speed difference between the driving drum 11 and casing 12 tends to increase with increased input speed the quantity of fluid in the chamber 52 increases with speed to increase the torque transmitting capacity of the coupling and thus reduce slip. Above a predetermined input speed centrifugal masses 90 in the reservoir move outwardly against the bias of leaf springs 100 to increase the pressure in the reservoir and force fluid into the chamber 52 to further increase the torque capacity of the coupling. During deceleration of the driving drum 11 the pressure in the chamber 52 exceeds that of the reservoir 60 and opens a spring-biased valve 75 which permits rapid flow of fluid from the working chamber 52 to the reservoir and thus facilitates deceleration of the casing 12. Inclined vanes 106a (Fig. 3, not shown), force fluid from the space 51 between drum 11 and casing 12 into the working chamber 52. In Figs. 8-10 (not shown), the orifices and valve controlled passages are combined.
Patent GB-880109-A (GB)
Title: Improvements relating to sheet feeder apparatus for printing machines
Inventor: JAMESON KEITH
IPC: B41F33/12
Filed: 1958-03-12
Abstract: 880,109. Feeding sheets. LINOTYPE AND MACHINERY Ltd. Feb. 25, 1959 [March 12, 1958]. No. 7904/58. Class 100(1) In sheet feeding apparatus for a printing press wherein the feed-board 10 is fitted with front lays 13 and #no-sheet' trip elements 14 for controlling stoppage of the press in the absence of a sheet at the front lays, the elements 14 are adapted to check the travel of a rod 62 and an oscellatory member 31 coupled thereto which is driven by an oscillatory member 22 connected to the driving mechanism of the press. whereupon a trip carried by the member 22 operates the stop device of the press. A cam 15, driven from the press, rocks a pivoted lever 17 and a link 18 which is pivoted to the rocker 22, the latter being freely mounted on a cross-shaft 23 and provided with an abutment -24 and a pivoted pawl 26 fitted with a pin 27. Behind the rocker 22, and fixed to the shaft 23, is a second rocker 28, and behind that is a third rocker 31 which is freely mounted on the shaft. The rocker 31, which is oscillated by the first rocker 22, has a stud 38 thereon adapted to co-operate with the abutment 24 on the rocker 22, and has a ramp 40 adapted to co-operate with the pin 27 on the pawl 26 of the rocker 22. The third rocker 31 is coupled to a bellcrank 34 by a pair of parallel links 42, 43 which carry a roller guided along a track between a fixed bracket 46 and a bracket 47 secured beneath the feed-board 10. A crossshaft 52 is rocked from the lever 34 by a link 50, and arms on this shaft reciprocate a slotted link 56, and the push-pull rod 62, respectively. When the link 56 is pulled back, it rocks a bracket 61 about its pivot 60, and the front lay 13 and trip element 14 carried by the bracket are withdrawn below the level of the feed-board to allow swinging grippers to engage a sheet on the feed-board and feed it to the press. A rack 63 on the rod 62 engages a pin'on 64 coupled to a stepped cam 66 cooperating with one end of an L-shaped nosheet trip element 14 pivoted at 67. If a sheet is present on the feed-board 10, it engages the trip 14 and holds it clear of the cam 66; but in the absence of a sheet, the cam is prevented from rotating in a counter clockwise direction by the trip 14, and the rod 62, lever 34, and third rocker 31 are thus locked against movement. In this case, continued counterclockwise movement of the first rocker 22 causes the pin 27 on the pawl 26 to ride off the ramp 40 on the third rocker 31, the pawl engages an abutment on the second rocker 28 to rock the shaft 23, and this actuates a tripping action to stop the press. The rod 62 is extensible, and under the action of springs. The feed-board 10 is hinged at 11, has a hinged apron 12 hinged thereon at 19, and the nature of the linkages associated with the front lays and no-sheet trip element 14 is such that the board 10 can be swung into a vertical position, and a small angular movement can be imparted to the apron 12.
Patent GB-1123544-A (GB)
Title: Improvements in or relating to top dyeing
Inventor: PEEL DENIS MARK
IPC: D06B5/16
Filed: 1966-02-23
Abstract: 1,123,544. Textile treating apparatus; sliver cans. J. FARRAR ENG. CO. Ltd., 20 April, 1967 [23 Feb., 1966], No. 7927/66. Headings D1F and D1L. A method of dyeing sliver comprises placing the sliver in a perforated can 2 having a central perforated vertical tube 10, fitting a cylindrical imperforate baffle 16 around the tube in the top of the sliver, placing a top plate 14 over the sliver and forcing liquid through the central tube to the sliver. The baffle 16 is preferably welded to the top plate.