baber/WOPTO huggingface dataset:
Patent GB-1429588-A (GB)
Title: Method and device for indicating maximum pressure in a fluid
IPC: G01L7/16
Filed: 1974-06-06
Abstract: 1429588 Pressure gauges H MAIHAK AG 6 June 1974 [6 June 1973] 25241/74 Heading G1L In a method of, or a device for indicating the maximum pressure occuring in combustion engines, compressors, pumps or hydraulic systems, a piston 4 on being subjected to a fluid-pressure operates against a rod-spring 2 to move a sensor bar 8 of a meter 6 to a maximum pressure position in which the bar 8 is held by a friction brake 13. The brake 13 consists of a carriage 14 connected to the sensor bar 8 by a driving pin 18 and movable in a guide 17. The carriage 14 is of aluminium lined with P.T.F.E. against which two brake blocks 21 are pressed by leaf-springs 15 to hold the bar 14 to the maximum position against a spring, (16) Fig. 2 (not shown).
Patent GB-1312766-A (GB)
Title: Information input apparatus for data utilization systems
IPC: G06F17/40
Filed: 1971-04-19
Abstract: 1312766 Input data handling BROOKHIRST IGRANIC Ltd 19 April 1971 [8 April 1970] 25285/71 Headings G4A and G4H Input data, e.g. the state of switches 1-3, is read into a shift register in parallel by means of a pair of sequential pulses P and T when the current data becomes different from that previously stored in the shift register. As described the current data and that in the store 7 are compared by means of exclusive-OR devices 12-14. Inequality causes the computer 11 to be interrupted and branch into a subroutine which generates a pair of pulses which gate the changed data into the store from which it is passed to the computer.
Patent GB-979261-A (GB)
Title: Improvements in or relating to the treatment of polyurethane
IPC: C08J9/38
Filed: 1962-07-02
Abstract: In a process for the controlled modification of a web of polyurethane foam by treatment with caustic-alkali solution and subsequent removal of the caustic-alkali solution to obtain a substantially uniformly modified foam, the web impregnated with the caustic alkali solution and wound on a perforated drum rotatable about its longitudinal axis is subjected to the action of the caustic alkali solution to effect modification of the foam whilst rotating the drum slowly (preferably at 15 to 20 r.p.m.) about its longitudinal axis for a period of between about 30 minutes and about 2 hours and the caustic alkali solution is then washed out of the web by passing water into the drum whilst rotating the drum rapidly (preferably at 100 to 200 r.p.m.) so that the water is forced centrifugally through the perforations into the web and emerges on the outside of the wound-up web.  A thin, non-elastic porous fabric may be wound on to the drum with the web so that successive layers of polyurethane foam web are held by successive layers of the fabric.  The caustic alkali preferably has a strength of 8 to 30 DEG Be.  The shorter times of treatment may be used when the treatment is effected at higher temperature, e.g. 60 DEG  to 80 DEG C., as by blowing warm air into the housing of the revolving drum. Specification 789,481 is referred to.
Patent GB-1259853-A (GB)
Title: Oriented plastics products and method of manufacture
IPC: B29C48/00
Filed: 1969-05-19
Abstract: 1,259,853. Partially oriented polymer compositions. PHILLIPS PETROLEUM CO. 19 May, 1969 [20 May, 1968], No. 25340/69. Headings C3P and C3R. An unfibrillated and non-fibrillar polymeric composition comprises in admixture (a) 55- 99% by weight based on the total weight of the composition of at least one crystallizable polymer, and (b) 45-1% by weight of at least one other crystallizable polymer, the polymers being homopolymers or copolymers of 1-olefins having from 2-8 carbon atoms per molecule, polyamides or polyesters, component (a) being molecularly oriented and component (b) being molecularly unoriented and having a melting point or range lower than that of component (a). Either (a) or (b) may be one or more of a polymer of ethylene, propylene, butene-1, pentane-1, 3-methyl butene-1 or 4-methylbutene-1, an ethylene/butene-1 copolymer, nylon 6, 6/6 or 6/10, polyethylene terephthalate or poly - 1,4 - cyclohexylenedimethylene terephthalate. Products of the above composition may be made by mixing together components (a) and (b), shaping the mixture to provide molecular orientation of (a) and (b), heating the shaped, oriented mixture to a temperature above the melting point or range of (b) but below the melting point or range of (a) thereby to unorientate (b). The mixture may be fibrillated prior to heating, and the fibrillated product used as a filtering medium or for the production of fabrics or carpeting. The unfibrillated product may be used as film or ribbons or for the production of bowls or pipes.
Patent GB-1276078-A (GB)
Title: Convertible pieces of furniture with double decker beds
IPC: A47C17/50
Filed: 1971-04-19
Abstract: 1276078 Wardrobe beds; bracket furniture JUVENILIA 19 April 1971 [7 April 1970] 25379/71 Headings A4B A4H and A4J A cabinet, of which the frame is shown at 101 ... 109, has two beds 120, 122 mounted to be swung independently to a vertical position within it, and a ladder 123 pivoted to the upper bed and attachable to the lower bed when the beds are in the open position as shown. Return of the beds into the cabinet is assisted by pneumatic resilient means 110, 111 connected to the frame and to the lower bed. In the form shown, the lower bed has feet 121 and the ladder is connected to it by forked ends engaging studs and clamping nuts on the bed. The upper bed is guided at its head end by members 135 sliding in channels on the vertical frame members 104, and is locked in its horizontal position by sliding spring-pressed bolts, withdrawable by cable 143 from the foot end, engaging over a horizontal stop-bar fixed to the members 104.
Patent GB-788286-A (GB)
Title: Improvements relating to medical instruments
IPC: A61B1/227
Filed: 1956-08-20
Abstract: 788,286. Specula. WELCH ALLYN, Inc. Aug. 20, 1956 [Aug. 24, 1955], No. 25396/56. Class 81 (2). A disposable speculum cover comprises a frustoconical or trumpet-shaped body 17 of thin flexible or resilient material open at both ends. The orifice 21 at the apex end has an inwardly extending annular flange 24 which projects into the distal opening of the speculum of an otoscope. An annular portion of reduced diameter grips the speculum to secure the cover 17 in position. A tab 28 and tear strip 31 enable the cover to be easily removed. In an alternative construction a rearwardly extending annular flange 32 secures the cover 17 to a knurled band of the speculum, the rear edge 37 of the flange 32 forming a finger grip. The tab 28 may be omitted. The cover is made of drawn or moulded plastic material and is 0.005 inches thick.
Patent GB-1418577-A (GB)
Title: Method and apparatus for dewatering sludge
IPC: C02F11/15
Filed: 1973-05-29
Abstract: 1418577 Electro-endosmosis dewatering of sludge MACHINEFABRIEK W HUBERT & CO BV 28 May 1974 [29 May 1973] 25458/73 Heading C1C Sludge having a dry content of less than 30% is dewatered by passing it on at least one endless belt member permeable to liquid between electrodes under pressure for the purposes of electro-endosmosis, using a direct current, for no more than 3¢ minutes of treatment; the process is characterized in that sludge conditioned with the use of a polymeric flocculant and first dewatered to shovel consistency with or without the use of sub- and/or super-atmospheric pressure is used.
Patent GB-866142-A (GB)
Title: Improvements in safety locks
IPC: E05B65/50
Filed: 1957-08-13
Abstract: 866,142. Locks. CHI, L. C., and GLUCK, S. Aug. 13, 1957 [April 17, 1957], No. 25491/57. Class 44. A lock comprises a plurality of tumblers pivoted in parallel planes and extending into a keyway for a flat key the major surface of which lies in a plane at right angles to the planes of the tumblers when inserted into the keyway and which is provided on the major surface with longitudinally extending parallel grooves, one for each tumbler. As shown, as applied to a hasp lock for a trunk, a locking bar 13 is withdrawn from the hasp 11 by a non-rotatable key 7 which, upon insertion into a lock body 8, first aligns slots 2 in a number of pivoted plate tumblers 1 with a bar 22 to permit bodily endwise movement of the lock body, the tumblers and the bar 13 as the key is given further inward movement to engage a lever 18 against a stop 17. The key 7 is provided with grooves which co-operate with the adjacent edges of the tumblers. An operating bar 4 having one end fixed to the lock casing 5 is provided with a catch portion, which co-operates with an edge recess of the body 8 to lock the body 8 and bar 13 until released by depressing the other end of the bar 4 which projects through the casing 5.
Patent GB-965264-A (GB)
Title: Improvements in or relating to bags
Inventor: PRESTON ARTHUR
IPC: B65D30/08
Filed: 1961-07-14
Abstract: 965,264. Block-bottom multi-ply bags. BIBBY & BARON Ltd. June 20, 1962 [July 14, 1961], No. 25546/61. Heading B8K. The waterproof lining of a two-ply block bottom bag is cut away at 7, or folded over the portion 6, so that the flap 8 may be secured on the flap 9 by ordinary paper adhesive. To facilitate the folding, slits 5 may be made in the lining.
Patent GB-865100-A (GB)
Title: Improvements in or relating to conveying apparatus
Inventor: WRAY JOHN WILLIAM
IPC: F23H11/10
Filed: 1958-08-08
Abstract: 865,100. Endless conveyers. INTERNATIONAL COMBUSTION (HOLDINGS) Ltd. July 28, 1959 [Aug. 8, 1958], No. 25613/58. Class 78 (1). In a conveyer for removing ash from a furnace, any ash that falls through the interstices of the upper run 12 on to the lower run 16 is blown therefrom by jets of steam or air issuing from nozzles 18 and is guided by a deflector 15 on to the top run.
Patent GB-1330289-A (GB)
Title: Marine platform mooring anchor
IPC: B63B/
Filed: 1971-04-19
Abstract: 1330289 Offshore structures TEXACO DEVELOPMENT CORP 19 April 1971 [6 April 1970] 25904/71 Heading E1H [Also in Division B7] A subsea mooring anchor 14 for an offshore buoyant marine platform, is formed from detachable ballastable, hollow base and cap members 18, 19 respectively which together define a cavity 23 in which a spherical or hemispherical ballastable dimpled coupling member 16 is adjustably located. An upstanding connecting post 22 on the coupling member 16 is adapted to engage a depending leg of the marine platform (10 Fig. 1 not shown) so as to allow limited oscillation and vertical movement of the platform above the marine anchor. For installation, the assembled anchor is towed to the offshore site, the base member 18 is controllably ballasted to lower it to the seabed, on guide lines 45. Coupling member 16 is then controllably lowered into recess 38 on the base member, and finally cap member 19 is controllably lowered onto base member 18 to enclose coupling member 16, the co-operating projections and recesses 34, 33 respectively correctly locating the base and cap members. Tension on line 37 secured to connecting post 22 causes coupling member 16 to rotate in cavity 23 until post 22 is located uprightly whatever the gradient of the seabed, whereafter cement is passed through ducts 43, 39 to unitise the component parts of the anchor to fix the coupling member 16 in position.
Patent GB-141284-A (GB)
Title: Improvements in starting apparatus for internal combustion engines
IPC: F02N1/00
Filed: 1919-10-22
Abstract: 141,284. Marriner, J. M. S. Oct. 22, 1919. Turning-gear.-A starting-handle D rotates a fly-wheel B connected by a coiled spring A to the engine shaft or to a shaft geared therewith, and is axially displaced by the contraction of the spring in the event of a premature ignition, either to bring the fly-wheel into direct or frictional engagement with a fixed abutment, or to disconnect it from the starting-handle. In the form shown in Fig. 1, the fly-wheel B has a sleeve B' turning on the shaft of a sprocket wheel C which drives the engine through a chain. The spring A is connected to the fly-wheel and to the wheel C. If premature ignition occurs, the spring A shortens to such an extent that the fly-wheel is axially displaced into contact with a fixed abutment E, and thereby the shock on the handle D is reduced. Frictional material 0 may be interposed between the fly-wheel and the abutment. In a modification, the sha.ft of the handle D has a squared end entering a squared hole in the fly-wheel so that. when this is displaced abnormally, the shaft is disconnected from the fly-wheel. In another modification, in which the handle has to be pushed inwards in order that a clutch on the end of its shaft may engage a clutch on the fly-wheel shaft, abnormal displacement of the fly-wheel disengages the clutch.
Patent GB-1512901-A (GB)
Title: Mills
IPC: B02C21/00
Filed: 1976-06-22
Abstract: 1512901 Impact mills SAEBY JERNSTOBERI & MASKINFABRIK AS 22 June 1976 [24 June 1975] 25945/76 Heading B2A An impact mill system includes a chopper rotor or impact rotor one side of the mill housing 1 including a feed-opening 2 for material to be ground the periphery of the housing including a discharge conduit 8 for milled material the conduit leading to a silo 9 provided with a vent 10 in the form of piping which leaves from the top of the silo to a filter bag 11, the end of the filter bag opposite the top of the silo being connected to piping 13 leading to the rear i.e. the other side of the housing of the mill. The suction generated by the mill thus carries very fine material from the bag back to the mill and effects mixing thereof with ground material and pumps the bag.
Patent GB-1030063-A (GB)
Title: Luneberg-type microwave lens
IPC: H01H51/28
Filed: 1964-06-23
Abstract: 1,030,063. Aerials. NORTH AMERICAN AVIATION Inc. June 23, 1964 [Feb. 26, 1964], No. 25962/64. Heading H4A. [Also in Division B5] A Luneberg type microwave lens in which the relative permittivity at radius r approximates to (2 - r<SP>2</SP>/R<SP>2</SP>), where R is the outside radius, comprises a plurality of shells of foamed polyurethane, each of uniform density and selfbonded to adjacent shells. The relative permittivity of each shell depends upon the proportions of basic materials used in forming it, and the relative permittivities of successive shells may be made to vary in a generally arithmetic or geometric progression, the radii of the shells being made such that the required relationship is approximated. As described, a hemispherical lens 10, Fig. 1 (not shown), is made by means of a mould assembly 14, Figs. 2, 3, 5 (not shown), consisting of a lower member 15 having a hemispherical cavity 16 into which protrudes one of a set of interchangeable hemispherical domes 18 carried by an upper member 17. Using the largest dome 18 first, a mixture of di-isocyanate and polyester resins in proportions according to the value of relative permittivity required for the outermost shell, together with a foaming agent such as water, is placed in the mould and cured by heating for an appropriate time. For the next shell, a smaller dome 18 is used, and the inside surface of the previous shell is first roughened in order to remove any skin of material having an undesirable value of relative permittivity, and to promote bonding between the shells. The innermost hemispherical part of the lens may be made of polytetrafluoroethylene and a reflector plate 12 may be fixed thereto by a screw 13. A spherical lens may be made by building up hemispherical layers of foamed polyurethane on the flat side of a previously prepared hemispherical lens, commencing from the centre, and the said lens may comprise a spherical central member C, Fig. 10 (not shown).
Patent GB-482205-A (GB)
Title: Improvements in or relating to windows for automobile vehicles
IPC: B60J1/14
Filed: 1936-09-24
Abstract: 482,205. Stays. A.C. (ACEDES) CARS, Ltd., and HURLOCK, W. A. E. Sept. 24, 1936, No. 25979. [Class 65 (i)] A pivoted window or ventilator may be locked in any of a number of positions by means of a spring- pressed arm 6, pivoted in a slot in a disc 1 fixed to the window adjacent to one of the pivots 2, engaging a toothed quadrant 8 mounted on the window frame to partially surround the disc. A projection 10 at one end of the quadrant 8 engages the arm 6 to limit the swinging of the window.
Patent GB-407097-A (GB)
Title: Improvements relating to the method of bending coffin sides
IPC: A61G17/00
Filed: 1932-09-20
Abstract: 407,097. Bending wood. CARTMELL, H., Winstead, Black Bull Lane, Cadley, near Preston. Sept. 30, 1932, No. 26091. [Class 145 (ii).] In making bent coffin sides, the usual transverse saw cuts are dispensed with and the side is recessed across its inner surface to make it thin for approximately the length which is to be bent ; the side is then bent and secured to the coffin base and the recess filled by a curved filling piece. As shown the edges of the recess B are shaped to form a dovetailed joint with the filling piece E ; the recess and filling piece may taper towards the base of the coffin and the face E<1> of the filling piece may be flat or curved.
Patent GB-206316-A (GB)
Title: Improvements in or relating to metallic springs
IPC: F16F1/04
Filed: 1922-09-27
Abstract: 206,316. Swan, A. Sept. 27, 1922. Drawings to Specification. Helical springs.-The coils of a helical or conical spring formed of metal of uniform cross-section are made of varying pitch to reduce or eliminate wave motion in the spring. The springs are specially applicable as valve springs for internal-cambustion engines. According to the Provisional Specification, the spring may be made of constant pitch, the cross-section of the wire being varied.
Patent GB-766385-A (GB)
Title: Improvements in or relating to hair waving
Filed: 1954-09-09
Abstract: A method of waving human hair comprises applying to the hair an aqueous solution of a borohydride of an alkali metal whose atomic weight exceeds 20, at a molarity of 0.5 to 1.6, and maintaining the hair in the desired configuration while in contact with the solution. The borohydride salt has the empiric formula MBH4, where M is an alkali metal.  The aqueous solution may also contain boric acid, glycine, aspartic acid, arginine, asparagine, sorbitol or mannitol, or mixtures of these compounds, or a mixture of boric acid and calcium chloride, to adjust the pH within the range 8.5 to 11.0, urea, methyl urea or ethyl urea as a swelling agent for the hair, or thioglycollic acid or the sodium, potassium, monoethanolamine or ethylene diamine salt thereof, or cysteine hydrochloride, as a hair reducing agent.  The aqueous solution may be applied to the hair, which may be either dry or damp, either before or after winding upon curling rods, and after a period of time the hair may be rinsed with water and the development of the wave may be completed by aerial oxidation or by application of an aqueous solution of sodium hypochlorite, hydrogen peroxide or sodium perborate.  The rinsing step may be omitted.  The ingredients for the aqueous solution may be made up into a dry composition.  In examples, the aqueous solution comprises (1) potassium borohydride and boric acid, to which calcium chloride may be added, (2) potassium borohydride and glycine, (3) potassium borohydride and mannitol, (4) potassium borohydride, mannitol and glycine, (6) sodium borohydride and urea, (14) the monoethanolamine salt of thioglycollic acid and potassium borohydride, (15) the ethylene diamine salt of thioglycollic acid and potassium borohydride, (16) cysteine hydrochloride, ethylene diamine and potassium borohydride, (17) thioglycollic acid, sodium hydroxide and sodium borohydride, (20) potassium borohydride, ethylene diamine thioglycollate, boric acid, mannitol, urea and ethylene diamine.
Patent GB-808326-A (GB)
Title: Improvements in semi-rotary motors
IPC: F15B15/22
Filed: 1956-08-27
Abstract: 808,326. Semi-rotary motors. SHAFER, H. J. Aug. 27, 1956, No. 26139/56. Class 110 (2). A rotary motor of the oscillating-vane type for operating valves in high-pressure pipe lines is provided with inlet or exhaust conduits 47, 48 controlled by valves 60 carried by the vanes 34 and is also provided with adjustable stops 57 for the vanes carried by abutments 38, 38<SP>1</SP>. Each vane and each abutment contains a resilient seal 36 or 41 of rounded cross-section which is provided with sharp squared-off projecting corners to tightly fit in the corners of the housing walls (see Fig. 7, not shown). The seals are made of synthetic plastic material or synthetic rubber whilst the valve 60 is made of a resilient oil-resistant material such as Neoprene. The motor may be manually rotated by a worm and worm wheel drive releasably keyed to the rotor shaft (see Fig. 4, not shown) which is also provided with passages 42, 43 for interconnecting the working chambers of the motor.
Patent GB-321274-A (GB)
Title: Improvements in or relating to protective and oil retaining glands for shafts
IPC: F16C33/74
Filed: 1928-09-12
Abstract: 321,274. Yarwood &. Sons, Ltd., W. J., and Yarwood, W. D. Sept. 12, 1928. Stuffing-boxes, substitutes for. - Packing for propeller shaft or like bearings comprises a rubber sleeve a, the elasticity of which causes it to grip the shaft b so as to rotate therewith, and a washer d engaging and rotating with the sleeve, the washer being pressed by the resiliency of the sleeve into contact with the end face of the bearing bush f. The outer end of the sleeve a abuts against the propeller hub c, the washer d being cup-shaped to extend over and protect, the sleeve. The washer may be solid or split, the two parts being secured together by bolts. As shown in Fig. 4, a washer is arranged at each end of the sleeve, the outer washer rubbing against a cover j adjustably secured to the bearing. The ends of the sleeve, which may be split, are tapered to fit into the washers.
Patent GB-1409523-A (GB)
Title: Process for citric acid production and intermediate therefor
IPC: C07C67/00
Filed: 1974-06-12
Abstract: 1409523 1-Hydroxycyclopent-3-ene-1-carboxylic acid; its esters and amides; and their use in the preparation of citric acid PFIZER Inc 12 June 1974 [15 June 1973] 26157/74 Heading C2C The invention comprises compounds of Formula II in which R is a C 1-10  alkoxy group or a hydroxy or animo group which are prepared by reacting a nitrile of Formula I with water or an alkanol in the presence of an acid catalyst and a process for the preparation of citric acid which comprises treating a compound of Formula II with an oxidizing agent to cleave the double bond and form two carboxylic acid groups and, when R is alkoxy or amino, hydrolysing the resulting product. 1 - Hydroxy - 3 - cyclopentene - 1 - carbonitrile is prepared by reaction of 3-cyclopenten-1-one with liquid hydrogen cyanide.
Patent GB-975879-A (GB)
Title: Improvements in or relating to logic device
IPC: H01L27/07
Filed: 1963-07-02
Abstract: 975,879. Semi-conductor logic circuits. WESTINGHOUSE ELECTRIC CORPORATION. July 2, 1963 [July 13, 1962], No. 26212/63. Heading H3T. [Also in Division H1] In a logic circuit comprising as a plurality of field - effect transistors and a junction transistor 12, the field-effect transistors, which are normally conductive between their source and drain electrodes, may be switched off by the application of a positive-going input signal at their gate electrodes, whereby the application of a suitable combination of inputs sends the base of normally non-conducting transistor 12 positive and renders it conducting between collector and emitter so that a negative-going output signal is developed at output terminal 22. A logical circuit providing an output (A+B+C) from inputs A, B, C may be realized by employing three field-effect transistors 22, 24, 26 connected in series, Fig. 1, while a circuit providing an output ABC may be realized by employing instead the parallel combination of three field-effect transistors, Fig. 2 (not shown). A unitary structure formed on a silicon plate and equivalent to the circuit of Fig. 2 is described, Figs. 3 and 4 (not shown, see Division H1).