baber/WOPTO huggingface dataset:
Patent GB-1048746-A (GB)
Title: Reciprocating fluid pumps
Inventor: WORDBY DONALD
IPC: F02M59/48
Filed: 1964-11-08
Abstract: 1,048,746. Reciprocating pumps. BRYCE BERGER Ltd. Oct. 28, 1965 [Nov. 8, 1964], No. 19193/64. Heading F1A. The barrel of a fuel injection pump is held in the pump body by a spring washer engaging a shoulder on the barrel and held in position on the body by rolling in the pump body or by a cap screwed on to the body or by a circlip engaging a recess in the body.
Patent GB-1148829-A (GB)
Title: Method of refining a carbonaceous metal bath
Inventor: JOHANSSON FOLKE KARL EVALD
IPC: C21C5/32
Filed: 1967-04-26
Abstract: 1,148,829. Refining metals. STORA KOPPARBERGS BERGSLAGS A.B. April 26, 1967, No.19302/67. Heading C7D. To refine a carbon-containing metal bath it is surface blown with an oxygen-rich gas while contained in a furnace provided with means producing relative movement between the furnace lining and the bath so that heat generated within the furnace may be transferred to the lining and from there to the bath, the lining being rich in silica which the bath is at some stage in the refining allowed to reduce, until the resultant silicon has dissolved in the bath to the extent of 0À05% to 0À5%. The furnace is preferably rotary, its axis being inclined at not more than 45 degrees to the horizontal, while heat may be generated by combustion of the carbon monoxide evolved by the refining. As applied to the production of steel the process may be carried out in the three stages, in the first of which slag-forming elements and carbon are oxidized at temperatures below that at which reduction of silicon occurs, e.g. below 1600‹ C. A carbon-containing fuel such as graphite or methane may be introduced into the bath during this stage to control the FeO content of the slag. At the end of this stage the carbon content may be 0À5-1% above that finally desired. Manganesecontaining slag-formers may then be added, and allaying additions, either in the elemental form or as oxides reducible by carbon at the prevailing temperatures. Refining is then carried on concurrently with the reduction of silica. A third stage may follow, in which the desired carbon and silicon contents are attained, the furnace being stationary and no oxygen being blown, except possibly for a small amount to burn the carbon monoxide resulting from silica reduction. Alternatively the furnace may be rotated and an inert gas such as argon blown in.
Patent GB-237112-A (GB)
Title: Improvements relating to cutting, drawing and like presses for operating on metal or other sheets or strips
IPC: B21D28/08
Filed: 1924-08-14
Abstract: 237,112. Griffiths, H. A., and Griffiths, R. H. Aug. 14, 1924. Metal-sheet feeds; spacing racks and like bars.-In mechanism for traversing a sheet step-by-step across the tools of a press, a pawl is reciprocated from the crank-shaft of the press and connected by a ratchet to the sheet carrier which is reversed at the end of a traverse by disconnecting the pawl from its driving means for one half revolution of the crank-shaft. A sheet a is clamped to a gravity or other slide e traversing a guide f mounted on a slide g travelling on a guide h. The slide g carries a notched bar i engaged by a pawl n on a shaft k. This latter is rotated to engage the notched bar and is reciprocated to traverse the bar. The shaft k is connected by a collar o, links p, q to a shaft r oscillated by levers s, t, u from a cam on a shaft 14 driven by chain w, clutch and chain x from the crank-shaft y. The clutch is disengaged against spring pressure by a fork 19 which carries a stop 20, normally inoperative. At the end of the travel of the slide a striker 33 on the slide contacts with stops 32 on a bar 30 carrying a tappet 30<a>, which through links 27, 26, 25, 24, 23 sets the stop 20 in the path of a projection 21 on the member 15 of the pin clutch. The clutch is disengaged for half a revolution of the crank-shaft and is re-engaged by a spring, the stop 20 being restored to inoperative position by a projection 22. The shaft k with pawl n is rotated for engaging the bar i from a cam 2 on shaft y acting through links 3 - - 10 and a lever 11 keyed on the shaft k. The pawl is normally held inoperative by a spring. The carrier e is fed by gravity or otherwise when abutments 35 on a rocking shaft 34 are released from a stop 36.
Patent GB-530817-A (GB)
Title: Improvements in and relating to recoil-impulse driving means
IPC: F02K5/02
Filed: 1939-07-04
Abstract: 530,817. Propelling aircraft. JUNKERS FLUGZEUG-UND-MOTOREN-WERKEAKT.- GES. July 4, 1939, No. 19435. Convention date, July 30, 1938. [Classes 4 and 114] Relates to recoil-impulse driving means for aircraft and in which a portion of the air compressed by a blower driven by an internal combustion engine is supplied to the engine, whilst the remainder is bye-passed and used to cool the engine, the bye-passed air heated by the cylinder walls and the exhaust gases being mixed together and expanded into the atmosphere through a recoil-impulse nozzle. According to the invention, the blower is driven by a multi-bank radial engine, having passages 3 between banks of cylinders 4, 5, and 7, 6 communicating with the blower, and passages 8 between the alternate banks of cylinders and forming mixing chambers for the exhaust gases and the by-passed air which are fed to one or more recoil-impulse reaction nozzles. Combustion chambers fed with fuel may be arranged between the mixing chambers and the nozzles.
Patent GB-812626-A (GB)
Title: Electric circuit breaker
IPC: H01H71/16
Filed: 1955-11-23
Abstract: 812,626. Automatic circuit-breakers; contact members for switches. C.T. ELECTRICAL CONTROLS Ltd. Nov. 23, 1955 [Jan. 27, 1955], No. 19474/57. Divided out of 812,622. Class 38 (5). A circuit-breaker has a fixed contact 43, a moving contact 34 carried on a slidably mounted member 33 which has a limited freedom of tilting movement, opening means e.g. a spring 36 acting on a part of the member 33 displaced from the contact 34, and a closing member 92 acting on the member 33 at a point 100 intermediate the contact 34 and the said part. When the contacts are moved from the open position, Fig. 8, to the closed position, Fig. 10, the member 33 is tilted about the point 100 and is slid along until the contacts initially engage as indicated in Fig. 9. As the closing movement continues the member 33 is tilted back in the reverse direction so that the contacts 34, 43 are fully engaged with a wiping action, Fig. 10. The invention is described in its application to the circuit-breaker of Specification 812,622, the member 33 carrying two moving contacts and being slidable on a rod which extends through the spring 36.
Patent GB-947262-A (GB)
Title: Cyanoethylated hydroxyethyl cellulose
IPC: C08B11/193
Filed: 1962-05-21
Abstract: The Specification comprises cyanoethylated hydroxyethyl cellulose. The molar substitution of the substance (moles ethylene oxide per anhydroglucose unit) may be between 0.25 and 4.2 and the degree of cyanoethylation above 2.0. Preferably the molar substitution is from 1-2 with a degree of cyanoethylation of above 2.3. Cyanoethylated hydroxyethyl cellulose may be made by reacting hydroxyethyl cellulose with excess acrylonitrile in the presence of an alkali metal hydroxide in known manner until a product having a degree of cyanoethylation of at least 2.0 is obtained, separating the cyanoethylated material, washing the resultant precipitated material with water, and collecting the washed product.  The product is soluble in acetone. U.S.A. Specifications 2,332,049, 2,774,004, 2,792,447, 2,838,715, 2,901,652 and 2,918,594 are referred to.
Patent GB-147576-A (GB)
Title: Pastry baking machine
IPC: A21B5/02
Filed: 1920-07-08
Abstract: 147,576. Consolidated Wafer Co., (Assignees of Groset, J. P.). March 25, 1914, [Convention date]. Waffle and like making and baking apparatus.- In a machine for moulding and baking ice-cream cones, the moulds, each consisting of a two-part outer portion 36 and a conical core 42, are mounted radially in rows of six in a rotating framework. The centre of the framework is a gas-distributing drum having flexible pipe connexions with two sets of baking-burners. Those of one set, directed into the interiors of the cores 42, are continuously alight, while those of the other set, adapted to heat the mould parts 36, are lit from the first set after the moulds arc filled, and are extinguished shortly before the finished cones are delivered. The moulds are closed, locked in their closed positions, released, shaken, and finally opened to deliver the cones by means of rook-shaft arms engaging in turn, as the framework rotates, with fixed cam tracks. The batter for making the cones is maintained at constant level in a reservoir 100 by a float valve, the supply pipe 102 being carried on past the valve to form a return for excess delivered by the batter pump. The mould-filling device connected with the reservoir 100 comprises essentially a tube of square section projecting into the rotating framework at the filling point and containing three members of angle-iron form, Figs. 15, 16, 17, engaging one within the other in such a way that the two members 111 and 112 with partitions serve by reason of relative movement as a multiple pump, first sucking in batter and then ejecting it through holes in the bottom of the pipe into the moulds beneath, while the member 110 acts as a multiple valve. The finished cones are delivered down a slide 138 into holes in the slats 140 of an endless conveyer, which carries them in turn into alinement with storage tubes mounted on a conveyer 173, the transfer from the slats 140 to the tubes being effected by a row of punches 145. The conveyer 173 is so timed that it makes one step forward for every four movements of the punch, with the result that each storage tube receives 24 cones.
Patent GB-385995-A (GB)
Title: Improvements in or relating to abrading of shoe parts
IPC: A43D95/08
Filed: 1931-07-07
Abstract: 385,995. Abrading shoe parts. BRITISH UNITED SHOE MACHINERY CO., Ltd. and GOULDBOURN, J., Belgrave Road, Leicester. July 7, 1931, Nos. 19509 and 25284. [Class 60.] Wheels and other tools.-A Naumkeag or like tool for scouring shoe parts comprises an abrasive cover of lenticular or pencil shape, the cover being air backed so as to provide a yielding abrasive surface when the tool is rapidly rotated and to avoid charring of the work. A column 1 carries a bracket 3 fitted with a head having a stem 5 and provided with a member 9 having bearings for a vertical shaft 11 carrying a Naumkeag scouring tool. This comprises a stem 15 terminating in a plate 17 and fitted with a clamping member 19 moved down. wardly by a screwed ring 21. A moulded abrasive cover having a number of slits in the inturned portion is held against a rubber ring 25 by the member 19 and may be centred by a pin passing through a hole 26 into a bore 28. In use, when the cover is rotated at high speed the centrifugal force serves to keep the cover in shape and to give a yielding action without the provision of solid backing to the abrasive cover. The machine is also provided with a frusto-conical tool mounted on a horizontal shaft 41, both tools being driven by belt gearing from a countershaft 37. The frusto-conical tool comprises a hub 45 carrying rubber collars 53 separated by a spacer 49. The rubber collars are expanded to grip the abrasive cover 63 by a screw 55 and the cover is further secured by a screw ring 65 which draws a split sleeve member 67 over the large end of the cover. The spacer 49 is arranged so that the yieldable working portion of the tool is air-backed. Specifications 23394/04 and 249,656, [both in Class 60, Grinding or abrading &c.], are referred to.
Patent GB-395515-A (GB)
Title: A new or improved combination tool
IPC: A43D5/00
Filed: 1932-07-11
Abstract: 395,515. Boot-repairing tools. WALTERS, W., 48, Bloomfield Road, Leicester. July 11, 1932, No. 19564. [Class 17 (i).] A combination tool especially for boot repairing comprises a pincers or cutters 2 on one limb of which is formed a hammer head 3, a tack driver 6, a screwdriver 10, an edge-setting iron 4, a heel burnishing iron 5, a narrower edge-setting iron 9 on the driver, a tack extractor 19, while a rasp 13 and a file are fixed to each side of the handle. Fudge marking wheels may also be secured to the driver. The handle may be encased in wood, or a leather sheath may be slipped over it when not used as a pincers.
Patent GB-1143975-A (GB)
Title: Vibrating machines for conveying or sieving loose granular material
IPC: F16F1/50
Filed: 1966-05-03
Abstract: 1,143,975. Vibrating conveyers. FRIEDRICH UHDE G.m.b.H. 3 May, 1966 [3 May, 1965], No. 19582/66. Heading B8A. [Also in Division B2] A support for a useful mass, e.g. a trough 1, of a vibrating machine for conveying or sieving loose granular material includes a rigid member 18 located between rubber members 16, 17 and mounted on resilient supports 19. Rigid plates 15 are secured to a counter-mass 2 and a thrust section 14 is secured to the useful mass 1. A rubber member 13 is provided between the upper plate 15 and the thrust section 14. The relative dimensions and resilience of the rubber members 16, 17 in relation to the ratio of the useful mass 1 and the counter-mass 2 are so chosen that vibration of the masses 1, 2 results in zero net shear force on the member 18. A formula is given relating heights of parts of the rubber member 13, the amplitudes of vibration of the members 1, 2 and the masses of these members. A further formula relates the stiffness of the rubber members 16, 17 to the masses of the members 1, 2.
Patent GB-865924-A (GB)
Title: Improvements in or relating to automatic machines for mounting electrical componentson base members
Inventor: RUNCIMAN ROBERT DAVIDSON
IPC: H05K13/04
Filed: 1958-06-19
Abstract: 865,924. Feeding electrical components to circuit boards. GENERAL ELECTRIC CO. Ltd. June 18, 1959 [June 19, 1958], No. 19633/58. Class 78 (1). [Also in Group XXII] In a machine for assembling electrical components on to circuit boards, the component magazine 78 comprises two elongated rectangular tubular members 109 secured in spaced relation by a tubular base 111 so that slots formed in one of the narrow sides face each other and receive the component leads. The base is normally closed by a spring-urged plate 119 but is opened by the engagement of a bent end 120 of the plate with a sleeve 125 when the magazine is secured to the machine by means of slotted flanges 113 being engaged over screws 115. From the magazine the components are fed to the insertion head by a feed device 79 comprising two vertical plates 80 secured to the block 29 and two guide-plates 82 mounted therebetween on rods 83 extending between the plates 80. All the plates have corresponding slots comprising vertical and inclined portions 86, 87 which guide the component leads. In the portion 87 the components are fed by two pushers 105 resiliently mounted in a block 103 secured to a block 93 and reciprocated at each downward movement of the blades 56 whose lower ends engage cam surfaces 98 on lugs 97 secured to the strips 93. Specification 801,232 is referred to.
Patent GB-792467-A (GB)
Title: Reversible plough
IPC: A01B3/421
Filed: 1954-07-05
Abstract: 792,467. Reversible ploughs. MARING'S PLOEGENFABRIEK N.V. July 5, 1954 [June 23, 1954], No. 19677/54. Class 6(1). A reversible plough, of the type having duplicate sets of ploughshares supported on a frame 6 rotatable about a longitudinal shaft 7 and in which a rotation of less than 180 degrees brings the alternative set into the working position, is characterized in that, with each set the shares are equidistant from a vertical plane through the shaft 7 whereby the lateral drag on the plough is minimized. The frame 6 is sector-shaped, the plough beams 9, 10 being carried by chordal members 12, 13. The main frame I is supported on tractor lift-links 2 and the frame 6 includes locking devices (not shown).
Patent GB-482045-A (GB)
Title: Improvements in or relating to pipes or conduits for the discharge of exhaust gases from internal combustion engines
IPC: F01N5/00
Filed: 1936-07-17
Abstract: 482,045. Exhaust systems. SOC. ANON. D'ETUDES DES BREVETS ET PROCEDES COANDA-SOC. COANDA, and COANDA, H. July 17, 1936, Nos. 19865/36; and 6910/38, divided out of 478,576. Convention-dates, Jan. 21, 1936 and June 16, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 18, 1937.] Drawings to Specification. [Class 7 (ii)] An exhaust conduit is formed so that its first part has' a cross-sectional shape which varies substantially with the high-speed cone of the discharging gases, which part continues along a helical or spiral path having a tangential exit to a silencer or other device. The first part is formed as described in Specification 478,576, and the continuation may be formed, (a) on a flattened pipe twisted about an axis, in line with, or at right-angles to, the axis of the exhaust port, the exit being a straight tangential part, or (b) by two bands helically wound between two concentric cylinders; the bands may extend through part only of the cylinders, the exit being a narrow slot leading to a tangential flat pipe. Specifications 430,134, 446,131, and 478,575 also are referred to.
Patent GB-1270023-A (GB)
Title: Closure for a container
IPC: B65D41/04
Filed: 1969-04-18
Abstract: 1,270,023. Caps for containers. STERLING SEAL CO. 18 April, 1969 [18 April, 1968], No. 19866/69. Heading B8T. A closure cap for a receptacle comprises an inner threaded skirt 11 having an upper portion which is integral with an inner end wall 10 and a lower end which is integral with the lower portion of an outer skirt 13, the top of the skirt 13 being turned inwardly at 15 to meet an outward top wall plate 20 at 14, thus securing the plate 20 in position. The end wall 10 may be made of a more flexible material than the outer wall plate 20. In further embodiments, Figs. 5-7 (not shown), the outer top wall plate (417), (517), (717) is supported in position by the engagement of the outer skirt (413), (513), (713) with the edge of the said top wall plate.
Patent GB-792627-A (GB)
Title: Improvements in and relating to means for detecting mechanical slip
Inventor: PROWSE DONALD WINDSOR
IPC: H02P7/20
Filed: 1955-07-08
Abstract: 792,627. Belt gearing. BRITISH THOMSON-HOUSTON CO., Ltd. July 6, 1956 [July 8, 1955], No. 19871/55. Class 80 (1). [Also in Group XXXVIII] Means for detecting slip between two frictioncoupled members of a system, e.g. in a rope drive consists of two tacho-generators 1 and 2, one driven by each member connected respectively through capacitors 3 and 4 to coils of a differential relay 7. The capacitors prevent any D.C. flow and hence energization of 7 only occurs during periods of relative acceleration between the members. Magnetic or other amplifiers may be provided between the generators and the relay.
Patent GB-1409712-A (GB)
Title: Optical systems
IPC: G02F1/03
Filed: 1972-09-01
Abstract: 1409712 Modulating light REDIFON Ltd 1 Sept 1972 20001/75 Divided out of 1409711 Heading H4F In an optical system a dispersive birefringent plate, of a thickness such that it acts as a whole-waveplate for one or more first wavelength components of an incident plane polarized beam and as a half wave plate for one or more second components, is followed by a polarization sensitive modulator whereby the first components are modulated independently of the second components without spatial separation. The system may be reversed to provide a single polychromatic beam with a single plane of polarization. The dispersive plate has no effect on the polarization of the first components, but serves to reflect the direction of polarization of the second components through its main optical (fast or slow) axis. In Fig. 1 the axis of dispersive plate 54 is at 22¢ degrees to the polarization direction of light from an argon laser 53 so that the polarization direction of the blue component is altered to 45 degrees with respect to the green component (0 degrees). Pockel cells 50 and 51 are set with their induced axes at 0 and 45 degrees respectively, whereby the blue light is polarization modulated only at cell 50, and green light only at cell 51. Phase modulation occurs at the other cells but is unimportant. The composite beam 52<111> is incident on a second dispersive plate 55 to provide blue and green light both with phase quadrature plane polarized components at 0 and 90 degrees (i.e. elliptically polarized with ellipse axes at 0 and 90 degrees) and passed to an analyser for transmitting the 90-degree components and absorbing or reflecting the 0-degree components. In Fig. 2 an argon krypton mixed gas laser provides R, band B light, and an arrangement of a Pockel cell 60 between two dispersive plates 65, 66 is followed by two similar arrangements, one for each colour component. The dispersive plates act as half wave plates only for their associated colour component and the Pockel cells are oriented with their induced axes parallel to the original plane of polarization for polarization modulating the associated colour component only. Again in the final beam incident an analyser 161 each colour component has plane polarization phase quadrature components at 0 and at 90 degrees. Plates 66 and 67, and 68 and 69, may be single plates of appropriate thickness. The polarization modulating cells may also be Ker cells. As described, the dispersive phase plate is of crystalline quartz with its optical axis in the plane of the plate. The optical systems are said to be particularly useful in laser television systems.
Patent GB-1464054-A (GB)
Title: Apparatus for supporting a helical wrap of tape
IPC: G05D13/62
Filed: 1975-05-13
Abstract: 1464054 Automatic position control INTERNATIONAL BUSINESS MACHINES CORP 13 May 1975 [12 June 1974] 20009/75 Heading G3R [Also in Division G5] A helical wrap of tape is supported on a cylindrical mandrel. Two separate chambers in the mandrel are supplied with air under pressure which passes through the mandrel surface to form an air film supporting the tape. The chambers lie adjacent different edges of the tape, and their respective pressures are controlled in accordance with measured tape skew in order to adjust the tape position so as to correct the skew.  As shown in Fig. 1, a magnetic tape 14 carrying transverse or oblique tracks is transported between reels 10, 12 by way of a mandrel 16 split into two sections 16a, 16b between which is located a magnetic head rotor 18. The mandrel surface is perforated or porous, so that air supplied on lines P1-4 escapes through the surface to form an air cushion for the tape 14. In use, tape misalignment is sensed by photodiodes 28, 30, and a control arrangement 32 responds by adjusting the air supply on lines P1, P2 which are connected to chambers 34, 36 located near opposed edges of the tape and at different ends of the wrap, Fig. 4. The pressure differential tends to counteract any skew in the tape position. Lateral displacement of the tape relative to the head rotor 18 is sensed by detecting a servo track 42. Error signals cause the pressure supplied to chambers 38, 40 in the mandrel over lines P3, P4 to be varied so as to align the data tracks on the tape precisely with the magnetic head. Errors in skew may also be detected by sensing servo tracks instead of by the optical system shown.