baber/WOPTO huggingface dataset:
Patent GB-853178-A (GB)
Title: Improvements relating to fluid cooling of high power electron discharge tubes
IPC: F16K49/00
Filed: 1957-12-06
Abstract: 853,178. Thermal switches. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Dec. 6, 1957 [Dec. 7, 1956], No. 38061/57. Addition to 838,105. Class 38 (5). [Also in Groups XXIX and XL (a)] An automatic temperature-control arrangement for a high-power electron discharge device as described in the parent Specification includes means for actuating an alarm or trip circuit in the event of an excessive rise in temperature of the cooling fluid. A metal cylinder 8 containing a liquid having a high coefficient of expansion relative to the cylinder is urged by a spring 14 into contact with the wall 4 of a discharge device provided with a cooling jacket 5, but is insulated from the cooling fluid in the jacket. Liquid from the cylinder 8 circulates through a capillary tube 15 to operate an hydraulic regulator 16 for the cooling fluid. The liquid enters the regulator through an inlet 21 screwed into an annular port 19 attached to the casing 22 and passes into a bellows 20 which on expansion moves an arm 23 and also opens a valve 37 against the pressure of a spring 31 to increase the flow of cooling fluid from an inlet 38 to an outlet 39. A finger 24, adjustable in position on the arm 23, has a rounded end 25 which contacts a lever 26 pivoted on an electric switch 27 or on any other device for breaking or making one or more electric circuits. If the electric discharge device gets too hot in spite of the valve 37 being fully open, further expansion of the bellows 20 moves the lever 26 and causes an insulated pushbutton 29 integral therewith to bear on an armature 28 of the switch 27 which can be arranged to operate an alarm or a tripping circuit e.g. for cutting off the operating current from the discharge device. An additional safeguard against failure of the regulator is provided by a bimetallic strip 33 secured by a screw 34 to the casing 22 in the vicinity of a leak 30 in the valve 37 and having a curved end 35 which contacts the lever 26. If the discharge device becomes overheated and for any reason valve 37 has not opened and the safety or alarm switch is not operated by arm 23 then fluid passing through the leak 30 will transfer enough heat through the casing 22 to bend the bi-metallic strip 33 and operate the armature 28.
Patent GB-1042398-A (GB)
Title: Process for cleaning textile materials
Inventor: MORRIS ALFRED FREDERICK
IPC: C11D7/50
Filed: 1964-09-18
Abstract: Textile materials, e.g. materials made from polymers and copolymers of acrylonitrile, cellulose triacetate or polypropylene, are cleaned and degreased by immersing them in trichlorotrifluoroethane, removing surplus solvent and then passing them into an aqueous bath maintained at such a temperature as produces rapid evaporation of the solvent. The materials may be treated with the trichlorotrifluoroethane at 40 DEG -50 DEG C. for 10-60 seconds and the aqueous bath may be maintained at a temperature of 45 DEG -55 DEG C.
Patent GB-1111199-A (GB)
Title: Methods and apparatus for needling textile fibres
IPC: D04H18/02
Filed: 1966-08-26
Abstract: In needling fibrous webs to effect compaction of the fibres the relative disposition between the needle and the web is adjusted such that the needle enters and emerges on the same side of the web during the penetration stroke of the needle reciprocation.  Apparatus for effecting the compaction may comprise a curved needle of trihedral cross section and having barbs on at least one of the pieces. Alternatively, the web may be curved round rollers and straight needles are used to penetrate the web on the curve.  In a further embodiment, the web is penetrated by both curved and straight needles to effect compaction in three dimensions.  The stroke of the reciprocation may be built up of overlapping reciprocatory increments to produce chain-like bundles of fibres.
Patent GB-1244243-A (GB)
Title: Improvements in or relating to mounting panels, such as glass panes, in a frame
Inventor: SCHENNING THEODOR KARL PETER
IPC: E06B5/12
Filed: 1969-07-31
Abstract: 1,244,243. Glazing. T. K. P. SCHENNING. 31 July, 1969 [3 Aug., 1968], No. 38421/69. Heading E1R. Panels such as panes 4 are mounted in a frame 2 having one fixed stop 6 by means of a sealing strip 16 of inverted-U or box-section and comprising a continuous V-shaped spring 20 resting with its free ends against the inner surface of the strip in the zone of the base angles of the strip at the inner periphery of the frame. The fixed stop 6 may have a bead 22 and the sealing strip 16 has a recess of corresponding shape to fit over the bead and the end portion 28 of the leg 26 of the spring is shaped to correspond to the portion of the strip 16 containing the recess so that the contact pressure by the spring acts both on the region of the inner corner of the strip 16 and on the zone of the strip located thereunder. The other stop 12 may be removable and is sealed to the pane 4 by a resilient strip 14.
Patent GB-1071056-A (GB)
Title: Improvements in cupola furnaces
Inventor: WADE GEORGE ROLAND
IPC: F27B1/08
Filed: 1963-12-30
Abstract: 1,071,056. Cupola furnaces. ESSO RESEARCH & ENGINEERING CO. Aug. 28, 1964 [Sept. 30, 1963], No. 38455/63. Heading F4B. A cupola furnace 1 has two burners 4 disposed horizontally and parallel to one another above the tuyeres 3 the centre lines of injection being equidistant from the cupola axis. The unobstructed flames produced each reach to the opposite wall and do not overlap each other. In a modification, Figs. 3 and 4 (not shown), the burners 4 are inclined downwardly.
Patent GB-1047850-A (GB)
Title: Improvements in mineral mining machines
Inventor: DAWSON GORDON BERTRAM
IPC: E21C35/12
Filed: 1962-10-12
Abstract: 1,047,850. Mineral-mining machines. COAL INDUSTRY (PATENTS) Ltd. Oct. 8, 1963 [Oct. 12, 1962], No. 38735/62. Heading E1F Lateral tilting of a mining machine with respect to a conveyer on which the machine is slidably guided is regulated by one or more pairs of wedge members of which one member of each pair is secured to the body of the machine whilst the other member is secured to slide means by which the machine is supported on and guided by the side walls of the conveyer. Preferably two, interconnected, hydraulic jackactuated pairs of wedge members 20, 24 and 15, 16 are provided on the goaf side of the machine.
Patent GB-369939-A (GB)
Title: Improvements in or relating to the twisting of yarns, threads, or filaments
IPC: D02G3/28
Filed: 1930-12-24
Abstract: 369,939. Twisting yarns, threads, or filaments. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and POOL, W., of British Celanese, Spondon, near Derby. Dec. 24, 1930, No. 38863. [Class 120 (ii).] Two threads from a single thread of continuous filaments are led from a single supply package in opposite e directions to follow independent looped paths around the package and the loops caused to rotate, whereby each thread is twisted in opposite senses and to the same degree and more than one twist is imparted for each revolution. In this manner a single thread of continuous filaments, for example of cellulose acetate, viscose, or other artificial or natural silk is divided into two equal or unequal groups. Preferably the single thread is untwisted. The twisting may be effected by a device having tubular flyers as described in Specification 369,940, the threads 7, 8 passing as shown through arms 34, 35 and hollow end trunnions from a package 6 which is mounted on a platform 10. The flyers are rotated by a wharl 16 and the platform 10 is geared, by means of wheels 19, 20 on a shaft 18 carried by the wharl, with a fixed wheel 22 so that it is maintained stationary. Friction gearing such as described in Specification 369,293 may be provided for this purpose, or the platform may be rotated relatively to the flyers to increase the rate of twisting. The twisted yarns may be wound on packages, or twisted and doubled with other threads, for example by a ring spindle apparatus, or the thread may be wound at an intermittent rate by means such as described in Specification 358,585 to cause the degree of twist to vary along its length. In the provisional Specification it is stated that the device may be employed to impart twist to two threads drawn from a single package, that the threads may be already twisted so that a further twist is imparted, and that when the thread consists of twisted filaments untwisting means controlled by a detector may be provided to enable the filaments to be separated ready for the retwisting.
Patent GB-1041249-A (GB)
Title: Optical instruments
IPC: A61B3/15
Filed: 1963-10-02
Abstract: 1,041,249. Ophthalmic photography. NIPPON KOGUKU K. K. Oct. 2, 1963 [Oct. 2, 1962], No. 38886/63. Heading G2J. In a modification of the ophthalmoscope described in Specification 991,847 a non-reflecting opaque portion P 4  is arranged in line with the light source s and in conjugate relationship to the stop Y so that any light transmitted by the mirror and reflected at P 4  is focussed on the stop Z and therefore prevented from reading the camera film. The semi-transparent mirror AMD may be formed at the interface of two prisms. Fig. 2 (not shown) and the surface EF may be formed on a face of the one of the prisms perpendicular to the beam from the source or this face may be arranged at 45 degrees to the beam and the surface EF formed on another face of the prism, Fig. 4. (not shown).
Patent GB-1442249-A (GB)
Title: Liquid crystal display device
IPC: G02F1/13357
Filed: 1974-09-06
Abstract: 1442249 Lamps DAINI SEIKOSHA KK 6 Sept 1974 [7 Sept 1973 21 Sept 1973 (2)] 39088/74 Heading F4R [Also in Divisions G5 G3 and H4] A light source 8 and focusing means 9 provide edge illumination for a liquid crystal display panel including polarizing plates 5, 6. The panel includes glass plates 1, 2 supporting electrodes arranged in figure-of-eight arrays, a glass plate 7 with a scattering surface 7a and a reflective film 7b and a reflecting casing with a base 13 and walls 11. The focusing means 9 comprises a parabolic reflector. Light is distributed along the panel by light guides 14, 15 with V-shaped or semicircular cut-outs 14a ... 14d, 15a, 15b. The device is used in wrist watches.
Patent GB-967064-A (GB)
Title: Improvements relating to stereophonic sound reproducing apparatus
Inventor: PERCIVAL WILLIAM SPENCER
IPC: H04S1/00
Filed: 1959-11-20
Abstract: 967,064. Stereophonic systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 21, 1960 [Nov. 20, 1959], No. 39358/59. Heading H4R. In a two-channel stereophonic sound reproducing apparatus, means are provided for reversing the phase of some but not all the frequency components of one channel relative to the corresponding frequency components in the other channel. For frequencies above a frequency in the range 300 to 600 c/s., the phase is reversed in order to produce a more realistic stereophonic effect by increasing " the spread of ambience." An audio signal and a narrow band control signal are demodulated at 1 and multiplied at 4 to produce left and right signals in loud-speakers 8 and 13 respectively. For low frequencies the signal to loud-speaker 13 is obtained across resistor 10 and the lower output winding of transformer 9. However, for frequencies at which the impedance of capacitor 10 is less than that of resistor 11, i.e. above 300-600 c/s., the output is taken from the upper output winding of transformer 9 and due to the presence of capacitor 10, is reversed in phase.
Patent GB-1021258-A (GB)
Title: Improvements in or relating to a method of rendering boats or aircraft capable of reflecting radar waves
IPC: G01S13/75
Filed: 1961-11-03
Abstract: 1,021,258. Plastic boats; aircraft framework. T. G. FARISH. Aug. 24, 1962 [Nov. 3, 1961], No. 39389/61. Headings B7A and B7W. [Also in Division H4] A boat or aircraft formed of resin-bonded fibre glass is made reflective to radio waves by incorporating metal flakes, particles, strands or wires in the resin, glass mat or glass rovings used in the formation of the fibre.
Patent GB-342847-A (GB)
Title: Improvements in or applicable to mechanical potato-diggers
IPC: A01D19/10
Filed: 1929-12-27
Abstract: 342,847. Potato harvesters. CROMMELINCK, J. and LIETER, P., Audenaerde, and WAUTERS, E., 85, Rue des Mimosas, Brussels, both in Belgium. Dec. 27, 1929, No. 39580. [Class 6 (iii).] In a potato harvesting machine in which a sieve is mounted behind a mechanical digger to collect and align the dug potatoes a plate or disc is disposed behind and preferably coaxially with the sieve to intercept the earth separated from the potatoes and prevent said earth from falling on already aligned rows of potatoes. A sieve 2 the axis of which is oblique to the longitudinal axis of the digger 1 is mounted on a shaft 4 connected to the digger through a cross member 5 and a curved shaft 6. The shaft 4 carries a plate or disc 3 preferably slightly concave and coaxially mounted behind the sieve 2, the other end of the shaft being carried by a wheel 7 which runs on the ground. The wheel is pivoted on a pin 17 the position of which on a rod 12 is adjustable, the rod 12 being adjustably secured to the shaft 4 by collars 121, 14 and screw 14<1>. The crown of the sieve is in contact with the ground, the sieve being rotated by friction and the position of the sieve relative to the digger and its inclination are adjustable by means of the cross member 5 and the adjustable wheel 7. A fork or grating 15 is attached to the digger to recover any potatoes not collected by the sieve, the fork being disposed obliquely to the longitudinal axis of the digger.
Patent GB-834144-A (GB)
Title: Dimethylaminopropylidenexanthenes and preparation thereof
IPC: C07D311/90
Filed: 1957-12-20
Abstract: The invention comprises dimethylaminopropylidenexanthenes of the general formula <FORM:0834144/IV (b)/1> (wherein R1 represents hydrogen, a halogen, or a hydroxy or C1-8 alkoxy or alkyl radical and R2 hydrogen, a halogen or a C1-8 alkyl radical) and their acid addition salts, and the preparation thereof by treating a 9-xanthenol of the general formula <FORM:0834144/IV (b)/2> with a dehydrating agent (e.g. a strong mineral acid, which yields an acid addition salt directly).  The products are useful as tranquilizers and analgesics. Xanthenols of the second general formula above are prepared by reacting a 3-dimethylaminopropylmagnesium halide with the appropriate xanthone.
Patent GB-883044-A (GB)
Title: Hydrostatic release mechanism
IPC: B63C9/22
Filed: 1958-12-09
Abstract: 883,044. Boat release gear. JEFFERY ENGINEERING CO. Ltd., and WINTER R. W. Feb. 3, 1960 [Dec. 9, 1958; May 25, 1959], Nos. 39740/58 and 17784/59. Class 115. [Also in Group XXV]. A hydrostatic release mechanism comprises a bolt 4 and a casing 8 the head 42 of the bolt is releasably engaged in the casing by two levers 34 which are pivoted at 36 and connected to a collar 26 by links 32. When submerged, water enters the casing 8 via the hole 46 and acts on the diaphragm 10 to move it against the spring 18 together with the rod 16 bush 28 and collar 26 to release the bolt 4. The bolt 4 may be released manually by rotation of the external knob 56 and cam 54 which depresses the rod 16. The diaphragm 10 may be replaced by a piston sliding in the cylindrical casing 6. The links 32 may be replaced by rollers which act on a bush secured on the rod 16. The rod 16 may be moved against the spring 18 by a solenoid.
Patent GB-1108089-A (GB)
Title: Voltage regulation system
Inventor: CALVIOU JOHN HENRY
IPC: H01F29/04
Filed: 1965-09-17
Abstract: 1,108,089. Tap changing transformers. J. H. CALVIOU, R. G. CLITHEROE and D. D. SILVESTER. 3 Nov., 1966 [17 Sept., 1965], No. 39790/65. Heading H2H. A transformer having on-load tap changing on its primary winding for coarse voltage control has a resistor R8 variably shunted by a pair of reverse parallel thyristors for fine voltage adjustment. Inter tap circulating current is limited by a resistor Z. Controls for the fine and coarse voltage variations may be ganged to provide a smooth transistor. The thyristors are fired by pulses having a high frequency relative to that of the supply e.g. 3 kc./s. with a mark space ratio of 1 : 15.
Patent GB-968400-A (GB)
Title: Method for producing crystalline high molecular weight polymers of olefines
IPC: C08F10/00
Filed: 1961-11-07
Abstract: 968,400. Polymers of alpha-olefines. SUMITOMO CHEMICAL CO. Ltd. Nov. 7, 1961 [Nov. 11, 1960; March 29, 1961], No. 39897/61. Heading C3P. Crystalline high molecular weight polymers of α-olefines are produced using a catalyst consisting of (a) a transition heavy metal halide, (b) an alkylaluminium dihalide and (c) a hydrogen halide salt of an organic amine. The transition heavy metal halides are halides of metals belonging to Group IVA, VA, VIA and VIII of the MendelÚeff Periodic Table. The hydrogen halide salts of organic amines may be salts of primary, secondary or tertiary amines. Lists of catalysts components are given. In the examples propylene or ethylene is polymerized using as catalyst ethylaluminium dichloride plus titanium trichloride and one of the following (i) triethylamine hydrochloride, (ii) diethylamine hydrochloride, (iii) dimethylamine hydrochloride, (iv) N,N-dimethylbenzylamine hydrochloride, (v) N,N-dimethyl-α-naphthylamine hydrochloride, (vi) p-dimethylaminobenzaldehyde hydrochloride (vii) ethylamine hydrochloride, (viii) n-propylamine hydrochloride and (ix) α-naphthylamine hydrochloride.
Patent GB-879858-A (GB)
Title: Electric time switch mechanism
Inventor: STOLLE ANTHONY DANIEL
IPC: H01H43/06
Filed: 1957-12-23
Abstract: 879,858. Time switches. INTERNATIONAL REGISTER CO. Dec. 23, 1957, No. 39935/57. Class 38 (5). The switch has two cams secured together, one of the cams having a follower arranged so that rotation of the cam in one direction causes pivotal movement of the follower, and rotation in the other direction causes sliding movement of the follower. The cam 54 is secured to a shaft 56 and is connected to a synchronous motor 76 by a friction clutch and gearing. The cam has three recesses 92, 94, 96 which divide the cam into three dwells 90a, 90b and 90c, dwell 90b being of smaller radius than the others. The second cam 100 is riveted to the cam 54 and co-operates with the follower 48 which is guided by fixed pins 44, 46. Normally, the cams rotate clockwise and when cam 100 engages its follower the latter slides to move contact 36 from a contact 28 to stop the motor 76. Reverse rotation during setting tilts the follower clockwise about pin 44 to open the same contacts. The cam 54 acts through a follower 84 as in Specification 879,466 on contacts 28, 35 on springs 22, 24, and on a contact 30 on a spring 26 and co-operating with a fixed contact 32. When the follower is on dwells 90a, 90c, contacts 28, 35 and 30, 32 are closed, when on dwell 90b, contacts 28, 35 are closed, and when in any of the recesses, both sets are open. The motor 76 is connected through 36, 28 and 35 so that it is only energized when all three are closed.
Patent GB-967640-A (GB)
Title: Plate heat exchanger
IPC: F28F3/10
Filed: 1961-11-09
Abstract: 967,640. Plate heat exchangers. SEPARATOR A.B. Nov. 9, 1961 [Nov. 11, 1960], No. 40160/61. Heading F4S. A plate heat exchanger in which adjacent plates have edge recesses for accommodating gaskets is characterized in that the lateral boundary lines of the longitudinal sides of the recesses are displaced in a regular manner such that the displaced parts of the recesses in one plate at least partly rest on a non-recessed plane surface of an adjacent plate. As shown, the boundary lines of the recess 2 in plate 1 have a sinusoidal form which is 180 degrees out of phase with the sinusoidal form in the adjacent plate (shown in dotted lines). Fig. 3 (not shown), illustrates a recess with regular protrusions in its sides which are displaced from the corresponding protrusions in an adjacent plate. In this embodiment the recess is braced by bulges in its bottom surface. Supporting projections 11, 12 are shown in adjacent plates.
Patent GB-1526738-A (GB)
Title: Duplex fusing apparatus and method
IPC: B41J2/32
Filed: 1975-10-02
Abstract: 1526738 Heat fixing XEROX CORP 2 Oct 1975 [18 Oct 1974] 40332/75 Heading B6C Toner images 10, 11 on either side of a duplex imaged flexible support material, while being advanced along an S-shaped path 20 substantially encircling in turn each of two elongated flash lamps 16, 18 along their longitudinal axes, are fixed by flash exposure to the lamps 18, 16 in turn.
Patent GB-910212-A (GB)
Title: Uranium oxide sols
IPC: B01J13/00
Filed: 1960-11-24
Abstract: A hydrothermally stable urania sol. in which the uranium is in the plus IV oxidation state, is produced by gradually removing by hydrolysis anions from an aqueous solution containing uranium tetrachloride until the solution is substantially free from electrolytes.  The anions may be removed by dialysis using an anion permeable membrane.  The starting material is an aqueous solution of uranium tetrachloride or of another salt which can be converted to uranium tetrachloride under the conditions of the process, e.g. uranyl nitrate.  In a preferred procedure the solution is maintained at an elevated temperature, preferably 60 DEG  to 100 DEG C., in a reservoir and gradually fed first to the anion removing station, where the solution temperature is preferably 15 DEG  to 35 DEG C., and then back to the reservoir, the operation being continued until the solution is substantially free from electrolytes.  The concentrated sol. may be diluted to any desired lower solids content by the addition of deionized water or water of low ionic content. The sols. may be clad with silica to a thickness of 30 to 120 Angstroms to improve their hydrothermal stability, the cladding being effected by adding a silica sol. to the urania sol. preferably followed by stabilization of the product by heating under non-evaporative conditions in the presence of an alkali metal hydroxide, e.g. sodium hydroxide which is stable under reactor conditions and which contains elements of low thermal neutron cross-section.  The diameters of the particles in these sols. are from 60 to 1900 Angstroms.  According to the Examples:- (1) Uranium tetrachloride solution was heated to 80 DEG C. in a vessel, withdrawn at the rate of 150 ml./min., cooled so that the cell temperature was maintained at 18 DEG  to 27 DEG C. and pumped into the cathode compartment of an electrodialysis cell separated from the anode compartment by an ion-exchange resin membrane. The solution leaving the cell was heated to 80 DEG C. and returned to the original vessel, the circulation being continued for 9 hours with a break after 3 hours to remove some of the excess HCl from the solution and to dilute it with deionized water.  The sol. had a specific conductivity of 1,36 X 10-4 mho/cm. and the diameters of the particles ranged from 60 to 700  .s. (5) A urania sol. prepared as in example 1 was coated with silica by adding rapidly, with mixing, a silica sol. to the urania sol. heated at 40 DEG C.  The silica sol. containing 2% of SiO2 was made by passing a sodium silicate solution through a column containing a cation-exchange resin in the hydrogen form.  The weight ratio of UO2 to SiO2 in the cladding operation was 2,2:1. After refluxing and cooling the urania clad sol. was deionized by passing it through an ion-exchange resin.