baber/WOPTO huggingface dataset:
Patent GB-379638-A (GB)
Title: Improvements in and relating to steam and gas reaction turbines
IPC: F01D3/04
Filed: 1932-03-10
Abstract: 379,638. Turbines. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. March 10, 1932, No. 7222. Convention date, March 14, 1931. [Class 110 (iii).] In a steam or gas reaction turbine in which the H.P. stage a and the L.P. stage bare normally balanced by the working fluid in the stages flowing in opposite directions, provision is made to secure axial balance when extra steam is admitted at c, steam is drawn off at d or e, or other load-variation disturbances occur. The turbine is designed such that any unbalanced load occurring moves the shaft in one direction only. In Fig. 1 the shaft when unbalanced moves to the left. Steam passes through a pipe g to a space h and leaking through packing clearances i, which have increased due to shaft movement, acts on a shaft disc f to counteract the unbalanced turbine pressure. The shaft movement decreases the packing clearances k. The packing at i or k may be radial only as shown on the left-hand side of Fig. 2. The disc f may be situated in the H.P. end of the turbine.
Patent GB-1048964-A (GB)
Title: Stirring mixer for the preparation of fertilisers or liquid manure
IPC: B01F7/00
Filed: 1964-02-21
Abstract: 1,048,964. Mixing-apparatus. R. BAUER. Feb. 21, 1964 [Feb. 21, 1963; Dec. 24, 1963], No. 7277/64. Heading B1C. A mixer 10 comprising a tubular drum 17 housing a drive shaft carrying mixing blades (not shown) for preparing fertilisers or liquid manure can be attached to the lifting mechanism of a tracton and is provided with gearing whereby it can be driven by the power take-off of the tractor. In one embodiment (Fig. 1) drive from the tractor power take-off 26 to the mixer drive shaft 29 takes place by means of universal joints 36, 37 and a telescopic shaft 28. In a further embodiment (Fig. 3 not shown) the mixer is driven from the tractor driving motor by a belt and pulley arrangement coupled with mitre wheel gearing at the drive end of the mixer shaft. The highest mixing position is shown at 17<SP>1</SP>, and the mixer is transported with the drum in the position 1711.
Patent GB-811367-A (GB)
Title: Improvements relating to electromagnetic relays
IPC: H01H51/01
Filed: 1956-03-08
Abstract: 811,367. Electrically-tripped (or released) switches; electromagnetic relays. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd., and NORTON, D. J. March 8, 1957 [March 8, 1956], No. 7282/56. Class 38 (5). A relay which is retained. set, after electromagnetic actuation, by permanent magnetism has a release coil and the permanent magnet as parts of a magnetic circuit separate from that of the operating coil but both circuits include the movable armature. The main magnetic circuit comprises a core 13 surrounded by the operating coil 12, a heelpiece 11 and the armature 16 pivoted at 14 and arranged to operate the contacts (not shown). When the limb 16a of the armature is attracted to the core 13 the other limb 16b moves nearer to and is retained by the second magnetic circuit which includes polepieces 19a, 19b to which is bonded the permanent magnet 22, and which are mounted on a non-magnetic bracket 18. A core 23 spans the polepieces 19a, 19b and carries the release coil 25 which assists the permanent flux and so diverts the flux from the armature to effect its release. A screw 17 sets the armature travel. In an alternative arrangement (Figs. 5 and 6) the armature 30 is held by a permanent magnet 43 acting through polepieces 39, 40 carrying release coils 37, 38 arranged in series or parallel. The coils oppose the holding flux to effect release, some of the holding flux being diverted through a shunt 44. In this form additional rings 46, 47 of magnetizable material may be provided on the polepieces 39, 40 so that their upper surfaces co-operate with a plate 51 on a pillar 50, both of magnetizable material and fixed to the armature 30 so that it may also be retained set in the release position. The relay of Figs. 1 and 2 may be adapted for latching in the release position also, by replacing the bracket 18 by a pair of spaced magnetic brackets the feet of which form additional pole faces for the permanent flux.
Patent GB-926154-A (GB)
Title: Improvements relating to clamps for laboratory bench scaffolding
Inventor: WORRALL RONALD HENRY
IPC: F16B7/04
Filed: 1960-03-02
Abstract: 926,154. Clamps. HELIX (UNIVERSAL) CO. Ltd. Feb. 20, 1961 [March 2, 1960], No. 7330/60. Class 44. A clamp consists of a metal plate 1 having an open slot 2 extending from one edge to form two spaced jaws 6, 6 having turned-up and curled-over outer ends forming curved seatings for engaging one member 4 and being provided at the side opposite the turned-up jaw ends, with an upstanding lug 7 having a tapped hole receiving a clamping screw 8 for engaging another member 5 when in position in the slot 2 behind the first member 4, the axis of the screw lying midway between the spaced jaws.
Patent GB-549969-A (GB)
Title: Treatment of polyamides
IPC: B29B17/00
Filed: 1941-06-11
Abstract: 549,969. Treating polyamide material. DU PONT DE NEMOURS & CO., E. I. June 11, 1941, No. 7385. Convention date, June 11, 1940. [Class 2 (iii)] Linear polyamide material, in bulky form, is compacted and largely deaerated by humidifying it until it contains at least sufficient water to be in equilibrium with the atmosphere at 25‹C. and 50 per cent. saturation, and then ccmpressing it between rigid inert surfaces, heated to at least 100‹C., until said polyamide material is converted into a dense form. The process is particularly applicable to polyamide material in the form of filamentary scrap, to prepare it for remelting. The rigid inert surfaces are preferably constituted by metal rolls, heated to 100‹-200‹C., and the material may be passed several times between the rolls. The compacted sheet thus obtained may be passed through a cutter to reduce the material to chips. Specifications 461,236, 461,237, and U.S.A. Specifications 2,071,250 and 2,130,948 are referred to.
Patent GB-575885-A (GB)
Title: Improvements in or relating to drying closets
IPC: D06F58/10
Filed: 1944-04-21
Abstract: 575,885. Drying closets. STEEL & CO., Ltd., and PRINGLE, J. W. April 21, 1944, No. 7417. [Class 34 (i)] In a drying closet comprising an upright cabinet 1 having double doors 2 and provided at its lower end with a gas burner &c. 4 and air inlet louvres 3 and with a hot air outlet 9 in its top, a uniform distribution of air throughout the upper portion of the closet is secured by a baffle or false roof 8 which is disposed just below the outlet 9 and is provided with a central group and two side groups of air passages 8a, 8b respectively. The total area of the central group of air passages 8a is less than the area of the outlet 9 and also less than that of the two side groups 8b. A false bottom 7 with two transverse rows 7a of air inlet holes may be fitted within the closet, also a curved baffle 5 between the burner 4 and a wire mesh grid 10. The articles to be aired or dried are supported on racks &c. 11.
Patent GB-648614-A (GB)
Title: Amusement device
IPC: A63H13/20
Filed: 1948-03-11
Abstract: 648,614. Toys. HERZOG. C. M. March 11, 1948. No. 7493. Convention date, July, 8, 1947. [Class 132 (iii)] An amusement device comprises a pliable figurine 24, with flexible arms, which is secured to a shaft 14, means for rotating said shaft including a cord fixed to said shaft intermediate its ends, means including a hollow member 26 with limited axial movement for guiding said cord and a base 10 having a horizontal partition inside which engages the end of the shaft. The Specification as open to inspection under Sect. 91 describes also a similar arrangement having a horizontal bar with a pliable figure at either end instead of a single figure. This subject-matter does not appear in the Specification as accepted.
Patent GB-1119303-A (GB)
Title: Reverse osmosis and membrane manufacture
IPC: C08L1/10
Filed: 1967-02-16
Abstract: A solution suitable for casting semi-permeable membranes, comprises a cellulose ester, an organic polar solvent therefor, a mineral acid and a solvating agent.  Cellulose formate, acetate, butyrate and propionate are specified in such solvents as acetone, tetrahydrofuran, dimethylformamide, dioxane, dimethyl sulphoxide or butyrolactone.  The mineral acid is suitably perchloric, hydriodic, hydrochloric, nitric or phosphoric; the solvating agent is normally water; alcohol is also mentioned. The solution is suitably cast on to glass plates, and removed therefrom by water; the finished film is not allowed to dry completely.ALSO:Water is separated from aqueous solutions by reverse osmosis through a membrane cast from a solution comprising a cellulose ester in an organic polar solvent, a mineral acid and a solvating agent.  In Examples, sea water (3.5% NaCl) is desalinated in a reverse osmosis apparatus operated at 1500 psig using cellulose acetate films cast from an acetone/water solution, also containing perchloric, nitric, hydriodic, hydrochloric or phosphoric acid.
Patent GB-667729-A (GB)
Title: Improvements relating to regulating arrangements for internal combustion engines
IPC: F02P5/07
Filed: 1950-03-25
Abstract: 667,729. Speed governors. DAIMLERBENZ AKT.-GES. March 25, 1950. [March 25, 1949] No. 7533/50. Class 57 [Also in Group XXVII] A centrifugal governor 15 regulates the fuel or combustible mixture supply of aninternal-combustion engine and an ignition timing distributer 3, the fuel or mixture supply being increased until a certain speed is reached, after which it is reduced. The throttle valve 9 of a main carburetter 7 is manually actuated by a link 11 connected through a link 12 and lost motion slot 13 to the throttle valve 10 of an auxiliary carburetter. Actuation of the link 11 opens the valve 9, and the valve 10 is opened by the governor 15 when a predetermined speed is reached. If a desired maximum speed is exceeded, the linkage- 22, 23 passes a dead-centre position 22<SP>1</SP> and the valve 10 starts to close.
Patent GB-1418623-A (GB)
Title: Process for prepariang compositions for use in agriculture as soil improvers and fertilizers
IPC: C05C3/00
Filed: 1974-02-19
Abstract: 1418623 Soil improver and fertilizer SOC ITALIANA RESINE SIR SpA 19 Feb 1974 [8 March 1973] 7630/74 Headings C1B and C1A A process for preparing a composition suitable for use in agriculture as a soil improver and fertilizer is characterized in that by-products obtained in the production of titanium dioxide from ilmenite or ilmenite slag in the sulphate process and substantially consisting of ferrous sulphate heptahydrate are reacted with ammonia and that the reaction product obtained, consisting substantially of ammonium sulphate and ferrous oxide hydrate, is subsequently oxidized until a composition is obtained which substantially consists of ammonium sulphate and ferric oxide hydrate. Further treatment with sulphuric acid may be carried out until the ferric oxide hydrate has been converted to ferric sulphate in an amount of at least 5 mole per cent,
Patent GB-680999-A (GB)
Title: Improvements in or relating to receivers in telecommunication systems
Inventor: HOLLAND JOHN DOUGLAS
IPC: H04L25/04
Filed: 1949-03-21
Abstract: 680,999. Noise level measurements. STANDARD TELEPHONES & CABLES, Ltd. March 21, 1950 [March 21, 1949], No. 7632/49. Class 37. [Also in Groups XXXV and XL (c)] In a radio receiver having a wideband input stage means are provided for determining the signal-tonoise ratio at the output of the said input stage, and for deriving a control voltage dependent on said ratio, whereby the output circuits of the receiver are automatically disabled when the signal-to-noise ratio is unfavourable. As shown in Fig. 1, a receiver comprises a wide-band amplifier 3, frequency changer and I.F. amplifier 5, detector and A.F. amplifier 7, wave shaper unit 11, and teleprinter 9. Part of the output from unit 3 is fed to a cathode-coupled limiter circuit 14 providing an output dependent on the relative amplitude levels of the incoming transmission and noise, and the output of the limiter is fed to a selective amplifier 19 tuned to the signal frequencies, and also to a wideband amplifier 20 which is provided with a filter to suppress the signal voltages. The outputs of amplifiers 19 and 20 are respectively connected through potentiometers 21 and 22 to the input circuits of a differential detector 25 and part of the output from the detector is fed to the point B to provide a biasing voltage to mute the receiver during noise impulses. A centre zero type meter 26 is connected to the output of the detector 25 and may be calibrated in arbitrary units of signal-noise ratio, by adjusting the nput equalizing circuits constituted by the otentiometers 21, 22. A visual indication of the noise level may be provided by oscilloscope 34 connected to the output of the limiter. To indicate any error in the frequency of the incoming signal the output from the limiter is supplied to a frequency discriminator 36 having a centre zero type meter 38 connected to its output, and arranged to give a zero deflection when no error exists. The output from the discriminator is also fed via a gating amplifier 42 which is cut-off by the negative voltage in the output of the detector 25 when the signal-noise ratio is unfavourable, and via point A to control the frequency of the local oscillator in unit 5. Details of the circuit arrangement are given in Fig. 2 (not shown).
Patent GB-617903-A (GB)
Title: Improvements in a process for making shoes and the product thereof
IPC: B29D35/14
Filed: 1946-03-12
Abstract: 617,903. Making shoes. MURRAY, A. E. March 12, 1946, No. 7650. Convention date, Sept. 17, 1945. [Class 17 (ii)] In the manufacture of a shoe for fitting an individual foot a support is made substantially conforming to the shape of the bottom of the foot, an upper is built on the foot while on the support, and the support is removed and replaced by plastic material, said plastic material being conformed while mouldable to the bottom of the foot and then allowed to set. A supporting pad 1, Fig. 12, is made by cutting a pair of sheets 10 of monks cloth to the shape of the plan outline of the foot and uniting the edges by placing on a larger similarly shaped sheet 11 of the monks cloth, the margin of which is folded over and adhesively secured to one of the sheets 10. Each laver of monks cloth is coated on one side with a layer of self-vulcanizing rubber or rubber substitute and adhesion between the sheets 10 and the sheet 11 is obtained by dusting with plaster of Paris the surfaces to be contacted. Cotton flocking, sand, wood flour, sawdust, or other material is then packed between the sheets 10 through a slit in one sheet which is subsequently sealed. A sheet of monks cloth 14, Fig. 19, is placed on the pad 1, and the foot is now placed on the layer 14 and the latter is pushed up into the shape of the foot,. The margin of the layer 14 is then folded downwardly and adhesively secured to the lower margin of the pad 1. The front piece 17, Fig. 18, of the upper, and the heel piece 22, formed of monks cloth, are adhesively secured at their lower margins to the layer 14, the heel piece 22 over-lapping and being adhesively secured to the margins 19 of the portion 17. A heel and arch reinforcing strip 23 is then applied and adhesively secured. Covering pieces of terry cloth or flexible leather 25 (not shown), 26, Fig. 2, are now adhesively secured to the pieces 17, 22 and the outer surfaces of the terry cloth are dusted with plaster of Paris and coated with self-vulcanizing rubber or rubber substitute. When the surfaces have set the pad 1 is removed from the shoe and replaced by a laver of plastic material, e.g. a mixture of neoprene, cork flour, balsa wood flour and pine wood flour. A burlap piece 27 and a layer of terry cloth 29 are adhesively secured to the under-surface of the plastic material ; and finally the edge of the upper is cut to shape and eyelets inserted for the reception of laces.
Patent GB-365398-A (GB)
Title: Closure for the orifices of sieves for powder boxes and the like
IPC: A45D33/08
Filed: 1931-03-13
Abstract: 365,398. Powder-boxes &c. BRUN, A., 11, Rue d'Aix, Paris. March 13, 1931, No. 7742. Convention date, March 14, 1930. [Class 18.] A powder &c. box has a hinged lid (not shown) and a sieve 3 carried in a mouth ring 2 containing a spring 4 which keeps the sieve pressed down on the powder &c. A number of radial blades 8 are pivoted at 9 beneath the sieve so that, by rotating the blades by displacing laterally a finger-piece 10 the holes of the sieve may be covered or uncovered. Oscillation of the blades serves to feed the powder &c. through the holes of the sieve.
Patent GB-365399-A (GB)
Title: Improvements in powder boxes and the like
IPC: A45D33/02
Filed: 1931-03-13
Abstract: 365,399. Powder-boxes &c. BRUN, A., 11, Rue d'Aix, Paris. March 13, 1931, No. 7743, Convention date, March 14, 1930. [Class 18.] A powder &c. box has a sieve 8 hinged in the mouth of a ring 9 containing a spring 10 which keeps the sieve pressed down on the powder &c. The body contains a cup 3 which rests on a plate 4 pivoted at 5 and is held by claw segments 7, 7<1> rotation being imparted to the plate and cup by a member projecting through the wall of the body. A lid (not shown) is also hinged to the body.
Patent GB-732708-A (GB)
Title: Method of forming small apertures in thin metal plates by means of a mandrel, articles manufactured by this method and a device for carrying out this method
IPC: B21D31/02
Filed: 1953-03-20
Abstract: 732,708. Making nozzles; punching. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 20, 1953 [March 25, 1952], No. 7761/53. Classes 83 (2) and 83 (4). An aperture is formed in a flat plate, supported on washers resting on a rubber mass and the rim of a metal pot containing the mass, by a mandrel which either perforates the plate directly or forms an indentation therein, the bulge of which is then removed by grinding to leave a perforation. A stainless steel platelike workpiece 8 is placed on three washers 5, 6 and 7 resting on a rubber mass 3 and on the rim 4 of a thick-walled metal pot 2 containing the mass. The surfaces of the washers are preferably provided with a thin film of lubricant. A mandrel 9 with a conical point 10 secured in a hand-press and arranged over the article 8 is then lowered so that the point 10 enters the plate 8, the pressure deforming the plate, the washers and the supporting rubber mass. The mandrel point may pass through the plate to form an aperture 21, Fig. 6, or may merely indent it at 13, Fig. 3, the bulge 14 thus formed being then ground off and the resulting aperture reamed by a thin drill. For a burner nozzle the plate 34, Fig. 7, is secured in a nozzle casing 30 by a sleeve 35.
Patent GB-418298-A (GB)
Title: Improvements in the manufacture of alloys
IPC: C22C1/03
Filed: 1933-03-14
Abstract: <PICT:0418298/III/1> <PICT:0418298/III/2> <PICT:0418298/III/3> The composition of alloys is determined during manufacture by producing on the same photographic plate 20 (Fig. 3) a photograph of the spectrum 21 of the alloy and an intensity scale 36<1> produced by bands of light of known relative intensities.  These bands are obtained by passing light from a single source through a stepped diaphragm, Fig. 6, the lengths of the steps 36 varying in logarithmic ratio.  The opacities of the bands in the intensity scale and of two selected spectral lines produced by different elements are measured by means of a recording microphotometer and from the record, shown in Fig. 8, the intensities of the light producing the lines are determined.  The ratio of these intensities is a function of the proportions of the elements present, and by applying the method to a series of samples of known composition a curve can be constructed from which the composition of other samples can be determined.  The spectrum should be produced by an arc between electrodes of the material under test, the current value being selected so that the intensity of the spectral lines does not vary with slight fluctuations of current.  The selected lines should be in the same part of the spectrum and light of similar wave-length should be used for producing the intensity scale.
Patent GB-1421528-A (GB)
Title: Cheese vat
IPC: A01J25/13
Filed: 1974-02-21
Abstract: 1421528 Cheese moulds B T GEESSINK 21 Feb 1974 [23 Feb 1973] 7879/74 Heading A2B A cheese mould has walls of which at least one is made from synthetic plastics and formed with bores 9 which pass from the outside partially through the walls, and communicate with the inside of the mould via one or more relatively fine holes 10, so that they can pass through, the inside surface of the wall being formed with grooves 12. The bores 9 have a diameter of 10 to 20 mm and the holes 10 a diameter of 0.4 to 1.0 mm. The length of the hole 10 is 1.5 to 5 mm. The side walls, top and bottom of the mould may be detachable.
Patent GB-1112517-A (GB)
Title: Motor drive assemblies
IPC: F16H7/14
Filed: 1967-02-20
Abstract: 1,112,517. Motor driving and mounting arrangements. GENERAL MOTORS CORPORATION. 20 Feb., 1967 [23 Feb., 1966], No. 7927/67. Heading H2A. [Also in Divisions D1 and F2] In a motor drive assembly for a washing machine, comprising a pulley 84 resiliently coupled to the shaft 40 of an electric motor 28 and connected by a belt 30 to a driven pulley (32) (Fig. 1, not shown), the motor is supported by torsionally resilient means 42 for limited pivotal movement about the axis of a mounting tube 44, and a spring (110) (Fig. 1, not shown) urges the motor to pivot away from driven pulley (32) to tension the belt. Flattened parts 80, 82 of tube 44 engage in resilient blocks 70, 72 held between plates 50, 62 clamped to the motor casing. Equispaced pins 104 extending through pores 106 of pulley 84 engage in alternate axial bores 96 of resilient rings 94, 98, pins 100, 102 engaging the remaining bores 96 and corresponding bores in rings 88, 90 secured to shaft 40 by screws 92, 93. Radial slots (108) (Fig. 3, not shown) in the rings 94, 98 between bores 96 increase their resilience. Pulley (32) forms the input member of transmission gearing (24) driving an agitator and rotating a tub.
Patent GB-182518-A (GB)
Title: Improvements in latches or locks
IPC: E05C1/16
Filed: 1921-12-13
Abstract: 182,518. Lycett, H. W. Dec. 13, 1921. Reversible locks and latches; latches, sliding. -In a latch in which the operating-lever 3 can be reversed without removal of the other parts of the lock, a transverse slot 11 is provided in the casing 8<a>, terminating in recesses 12 adapted alternatively to receive the fulcrum-pin 5 of the lever 3 in its working position. To reverse the lever, the single or double headed bolt 1 is pushed in against its spring; the fulcrum-pin 5 of the lever can then be disengaged from the recess 12 and moved along the slot 11 to the other side of the bolt, allowing the lever to be withdrawn from the lock. After reversal the lever is reinserted in a similar man. ner so that its fulcrum-pin engages the other recess 12. Rollers 13 revolving on stumps on the bolt form a bearing for the lever 3.