baber/WOPTO huggingface dataset:
Patent GB-400740-A (GB)
Title: Improvements relating to fluid pressure gauges
IPC: G01L7/04
Filed: 1932-08-02
Abstract: 400,740. Bourdon pressure gauges. HARCOURT, E. G. and MANN, A. J., c/o Harcourt, Ltd., Theodore Street, Birming- ham. Aug. 2, 1932, No. 21613. [Class 106 (ii).] The pointer g of a Bourdon pressure gauge has its spindle f mounted on a bridge d near the periphery of the casing a, the spindle h of the quadrant i being mounted near the centre of the casing on a radial arm e. A plate b carries the members d, e and also a hollow post k to which one end of the Bourdon tube l is attached, the other end being connected by a pivoted link m to a bent lever n secured to the quadrant spindle. The link m has a shoulder o adapted to be engaged by an arm p, which is adjustably secured to the base and serves as a stop to limit the movement of the mechanism.
Patent GB-460772-A (GB)
Title: Improvements in the manufacture and production of tanning agents
IPC: C14C3/20
Filed: 1935-07-30
Abstract: Products useful as tanning-agents are obtained by the joint condensation of formaldehyde, an ammoniacal base, and a water-soluble salt of an aralkyl compound containing at least one hydroxy group linked to an aryl nucleus and a sulphonic group linked to an aliphatic radicle.  Such aralkyl compounds are obtainable by the action of formaldehyde and a sulphite on phenols, naphthols, hydroxyanthracenes, dihydroxydiphenyl sulphones, and dihydroxydiphenylmethanes.  Specified aralkyl compounds are p-hydroxybenzyl-o -sulphonic acid, naphtholmethyl-o -sulphonic acids, b -(hydroxyphenyl)ethanesulphonic acids, and 4 : 4<1>-dihydroxydiphenylsulphonemethyl-o -sulphonic acids.  The ammoniacal base may be ammonia, methylamine, dimethylamine, ethylamine, propylamine, butylamine, cyclohexylamine, dodecylamine or cetylamine.  Formaldehyde and ammonia may be replaced by hexamethylenetetramine, or instead of formaldehyde its equivalents, such as formaldehyde bisulphite or methylene chloride, may be used. The reaction is preferably effected at 80-180 DEG  C. in a aqueous medium in the presence of caustic potash, caustic soda, calcium hydroxide, sodium or potassium carbonate, or sodium acetate.  In the examples, a reaction product of 4 : 4<1>-dihydroxydiphenyl sulphone, formaldehyde and sodium sulphite, consisting mainly of an o -methylsulphonate of the sulphone, is treated (1) with formaldehyde and ammonia and (2) with formaldehyde and n-butylamine.
Patent GB-595594-A (GB)
Title: Improvements in or relating to containers for comestibles
IPC: A45C11/20
Filed: 1943-12-24
Abstract: 595,594. Insulated food containers. POLLAK, J. E. (Dev-Insular Co.). Dec. 24, 1943, No. 21625. [Class 64 (ii)] [Also in Group XVII] A thermally insulated food container comprises upper and lower casings 10a, 10b of plastic material the lower being closed by a plate 13 of plastic material which is formed with ribs 17 suitably shaped to support a pair of superposed vessels 18 of glass. A gasket seal is provided between upper and lower casings. The vessels 18 are retained in position by a plate 23 having a central sleeve 25 to receive a piston 26 carried by the casing 10a. A spring 27 forces the piston outwardly from the sleeve, the parts being normally retained in position by a pin 28 engaging slots 29, Fig. 4. The parts are released by raising plate 23, rotating so that the pin 28 passes along slot 30, and then allowing it to move along inclined slot 31 and notch 32. If hot food is placed in the vessels 18, a vacuum may be formed in the casing, so that its closure 13 must be forcibly released by a latch 37 which carries a bail 36 engaging a notch 35 on a lug 34. Latch 37 is pivoted at 44 between two ears 43 on the casing 10b, and on opening, lug 34 is first engaged, lifting casing 10a and plate 13. Further movement brings latch 37 into engagement with flange 15 on plate 13 to separate it from casing 10a.
Patent GB-1206215-A (GB)
Title: Improvements in highway crash barriers
Inventor: TOSLER ARTHUR ROBERT DAVID
IPC: E01F15/04
Filed: 1968-05-08
Abstract: 1,206,215. Crash barriers. A.. R. D. TOSLER. 5 March, 1969 [8 May, 1968], No. 21664/ 68. Heading E1G. A crash barrier rail 11 is carried by a series of single or multi-leaf spring steel elements 13 clamped to the tops of anchorage piles 18, each element 13 being shaped to provide vertical, intermediate and horizontal portions 15, 17, 16. As shown each element 13 is of U shape to support a pair of rails 10, 11 and is clamped .between pairs of bolts 22 by plates 19, 20 and side packing pieces (not shown). In order to a progressively increasing resistance to deflection the element 13 is either multi-leaved or (as shown) has its intermediate portion 17 of tapered thickness.
Patent GB-858636-A (GB)
Title: Improvements in or relating to centrifugal dryers
IPC: B04B7/18
Filed: 1958-07-07
Abstract: 858,636. Centrifugal strainer separators. CONSTRUCTIONS GUINARD. July 7, 1958 [July 9, 1957], No. 21674/58. Class 46. Solids in a suspension to be centrifuged introduced through a duct C (see arrows A) build up against steps 3, 4, 5 within the screen 1 to form beds 6, 7, 8 through which later material is centrifuged and which protect the screen from undue wear when the solids are hard and abrasive. Alternatively the beds 6-8 may be formed from particles of a different nature introduced into the screen before admission of the suspension to be treated. The steps as shown take the form of round-section bars secured through the screen to the basket 2 by staples 2<SP>1</SP>.
Patent GB-1030487-A (GB)
Title: Polyester resins
IPC: C08G63/58
Filed: 1964-05-26
Abstract: An unsaturated polyester resin is prepared by heating (a) an alkylene oxide, (b) a mixture of maleic anhydride and another dicarboxylic anhydride, the mixture containing at least 10 mol per cent of maleic anhydride, and (c) 10-50 mol per cent, based on (b) of water or a dihydric or polyhydric alcohol, at a temperature below 180 DEG  C. until the acid number is less than 240, then at 180-250 DEG  C. until the acid number of the product is less than 60. Suitable alkylene oxides are ethylene, propylene and butylene oxides.  The preferred anhydride mixture contains equimolar amounts of maleic and phthalic anhydrides.  Other anhydrides suitable for mixing with maleic anhydride in the present invention are those of succinic, glutaric, octenylsuccinic, diglycollic, thiodioglycollic, tetrahydrophthalic, tetrachlorophthalic and other substituted phthalic acids and Diels-Alder adducts of maleic acid with e.g. cyclopentadiene. Suitable polyhydric alcohols are ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, triethylene glycol, 1,3-butane diol, 1,5-pentane diol, 2-butene-1,4-diol 1,2,6-hexane triol, pentaerythritol, sorbitol and mannitol.  The polyhydric alcohol may comprise up to 25 mol per cent of a monohydric alcohol.  The molar ratio of alkylene oxide to anhydride mixture may be from 0.9-4.0 to 1, ratios greater than 1 to 1 permitting the formation of diglycol or polyglycol units in the polyester chain.  In a suitable process the mixture of anhydrides and the water or alcohol is heated to 100-150 DEG  C., and the alkylene oxide is added over 1 1/2 -3 hours, the temperature being held at 100-150 DEG  C. until the acid number falls below 240, then at 180-250 DEG  C. until the acid number falls below 60 and the viscosity is F to I on the Gardner scale. The mixture is then cooled to 160 DEG  C. and a stabilizer, e.g. hydroquinone is added.  30-40 wt. per cent (based on the cut resin) of a copolymerizable monomer, e.g. styrene, may be added. In examples an equimolar mixture of maleic and phthalic anhydrides is mixed with water (13, 25.5, 37.5 and 50 mol per cent) or propylene glycol (25 and 37.5 mol per cent) and treated with propylene oxide (105-143 mol per cent), the product being mixed with 30 mol per cent of styrene.
Patent GB-239511-A (GB)
Title: Improvements in and relating to electron discharge apparatus
IPC: H05G1/34
Filed: 1925-09-01
Abstract: 239,511. British Thomson-Houston Co., Ltd., (Assignees of Kearsley, W. K.). Sept. 2, 1924, [Convention date]. Addition to 170,546. R÷ntgen-ray apparatus. - In the apparatus of the parent Specification comprising a supply circuit 18 for the tube and a heating circuit 10 for the cathode containing a vibratory regulator 19 shunting a resistance 14. the regulator is provided with a single actuating coil 17 connected directly by lines 38, 39 to the main supply circuit 3, 4. Increases or decreases in the voltage of the circuit 3, 4 respectively decrease or increase the periods during which the resistance 14 is shortcircuited so that the temperature of the cathode is maintained constant regardless of voltage changes in the circuit 3, 4, constancy of electron emission from the cathode and of quantity X-ray output being produced in carefully exhausted tubes with constant internal conditions. Selfrectifying Coolidge tubes as shown, or tubes! having a rectifier in the circuit between the cathode and anode may be used. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the arrangements described in the parent Specification and refers to electron discharge apparatus generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-239244-A (GB)
IPC: H01H85/20
Filed: 1925-09-01
Abstract: 239,244. Elfa Elektrotechnische Fabrik Ges. Sept. 1, 1924, [Convention date]. No Patent granted (Sealing fee not paid). Fusible cut.-outs combined with electric switches. The insulating body 1 has blade contacts 2, 3 and a lamp-holder thread 4 for receiving a fuse plug 5 or automatic switch in the form of a plug. By screwing in the plug the circuit between the contacts 2, 3 is closed. The construction allows a compact arrangement of multi-pole fuses, as shown in Fig. 2. In Fig. 3 is shown a casing 1, the raised part of which contains an automatic switch with an actuating member 7 disposed either below, as shown, so that the casing must be removed to reclose the switch, or on the upper side, in which case a look is provided and a device for releasing the lock is placed underneath. Contact pins may be used instead of blades and the body 1 may be strengthened by metal armouring and provided with a suitable handle.
Patent GB-641481-A (GB)
Title: Improvements in or relating to the manufacture of electric discharge tubes
IPC: H01Q13/18
Filed: 1947-08-08
Abstract: 641,481. Making electric discharge tubes &c. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 8, 1947, Nos. 21912 and 21913. Convention dates, Jan. 16, 1946, and June 19, 1946. [Class 83 (ii)] In a method of making electric discharge tubes, a plurality of conductors formed in one piece from a metal sheet are sealed in insulating material and subsequently insulated from each other by removing the interconnecting metal portions. In an example the metal tags 21, Fig. 2, are sealed between a glass cylinder 26, Fig. 4A, and bulb wall 29 after the electrode system 30 has been connected by wires 31. The uniting strip 24 is then removed to leave the tags 21 insulated from one another. Two or more tags 32 may be bent and welded to an exhaust tube disc 27. In another example the tags 45, Fig. 6, are cut radially from one piece, bent to the required shape and sealed between the glass cylinder 52, Fig. 7, and bulb 57, the raised portions 49 being subsequently ground off to leave the tags 45 and bottom plate 68 insulated from one another, the bent parts 46 serving as contact members. The strips 45 may be bimetallic consisting for example of outer plates of ferro-chromium or other metal which readily adheres to glass and of a central plate of copper or other metal having a high electric conductivity. In a further example the removable strip may carry integral electrodes attached thereto by tags, the electrodes being bent into cylindrical cupped or other shapes, and in another example, tags on the end of a cylinder are sealed in an insulator and then severed from the cylinder which may form the wall of a discharge tube.
Patent GB-1447243-A (GB)
Title: Connector portion having releasable fastening means
IPC: H01R13/629
Filed: 1973-05-08
Abstract: 1447243 Two-part couplings K W LEEKEMP 7 May 1974 [8 May 1973 10 May 1973] 21928/73 and 53514/72 Heading H2E A male coupling part comprises coaxial outer and inner shells 125, 122 and independent resilient flat-sheet catches 120 each having a portion extending through an opening 124 in the outer shell 125, the outer shell being axially slidable to deflect the portion from the opening and the catches being formed independently of the inner shell and fitted in a recess 121 in the inner shell. A plurality of separate detents 120 each with a catch 123 are formed from resilient strip and located in the annular recess 121. The outer shell can be slid to the right as shown to deflect the catches from an annular recess (not shown) of a complementary female part in which they engage. In other embodiments the detent may be formed from an E-shape sheet with the end arms of the E seated in the recess and the centre arm forming a catch (Figs. 6 to 10); various shapes of catch are shown. A seal (not shown) may be provided between the end of the inner sleeve and a flange on the female part.
Patent GB-1155451-A (GB)
Title: Improvements in or relating to Containers for the Storage of Materials at Low Temperatures
Inventor: GIBB JAMES MACFARLANE
IPC: F17C3/02
Filed: 1966-05-18
Abstract: 1,155,451. Liquefied gas storage containers.  MOTHERWELL BRIDGE & ENG. CO. Ltd. 16 May, 1967 [18 May, 1966], No. 22033/66. Heading F4P. The space between inner and outer side walls 1, 2 of a cold liquefied gas storage container is charged with powdered heat insulating material contained in a plurality of separate bags 6 of material which remains pliable at low temperature, e.g. polythene or glass fibre cloth. The bags are stacked in groups of five separated by trays 8 and the bags of each group are tied together b glass fibre rope 7 so as to be spaced from the inner wall 1, thereby inhibiting development of inward force thereon. The uppermost bags are covered by a glass cloth membrane 9 which retains powdered material located between the inner and outer roof shells 4, 5.
Patent GB-785527-A (GB)
Title: Improvements in or relating to apparatus for handling bituminous materials
IPC: C10C3/12
Filed: 1956-07-17
Abstract: 785,527. Asphalt cauldrons. MILLER, W. J. July 17, 1956, No. 22061/56. Class 107 An ashphalt liquidfying device comprises a heating tank surmounted by an open topped vessel and an assembly whereby an ashphalt container can be raised and then lowered in an inverted position in the vessel for melting and discharge of the asphalt. The structure incorporates a crane 15 which lifts containers 22 singly from a trailer 26 and then inverts them by lifting-line 18. The container is then suspended as shown in broken lines and lowered into the vessel 28. Pipes 36 carrying hot oil penetrate the solid asphalt and, aided by the oil filled jacket of the container, melt the whole contents. The oil tank 29 is equipped with a conventional oil-fired. heating system and the pump 37 circulates the hot oil in pipes 36 and the jacket.
Patent GB-653986-A (GB)
Title: Improvements in handles for containers
IPC: B65D25/28
Filed: 1948-08-21
Abstract: 653,986. Handles for paint cans &c. READS, Ltd.. and MOREWOOD, R. H. Aug. 21, 1948, No. 22092. [Class 66] A bail handle 3 of wire &c. is permanently or detachably secured with its ends 5b outside, or inside the neck ring 1 of a paint can &c. 2, and is bridged by wire or strip metal 6a which lies across the mouth of the can for use as a paint brush rest or wiper, but may be moved bodily or pivotally, e.g. to release the handle, which may be stored in the usual cavity beneath the bottom of the can, or to allow the bail handle to be swung downwardly against the side of the can. The sides of the handle may be kinked so as to hold the wire &c. 6a, e.g. in the brush-rest position.
Patent GB-228218-A (GB)
Title: Improvements in or relating to air-heaters
IPC: F28D9/00
Filed: 1923-09-03
Abstract: 228,218. Owen, W. H. Sept. 3, 1923. Regenerators.-An apparatus for heating air, more particularly pre-heating air for combustion by utilizing the heat of waste gases, consists of metal sheets or cells arranged in groups to form elements for easy assembling in or removal from the casing of the heater. In the arrangement shown in Figs. 1 and 1<a> the plates are separated by packing strips 2 and held by rivets. The hot gases pass between the cells in the direction of the arrows 7 while the air enters the cells through the space 5 and leaves by the opening 6. Guides and stiffeners may be secured in the air cells, or the sides may be indented to form rims. The ends of the plates 9, Fig. 1f, may be welded or turned over as shown at 10. In another modification, the cells are formed of a continuous strip 1, Fig. 1<g>, and are held rigidly together by a binding strip 4. The bundles of cells are inserted in the casing through an opening closed by the door 4<x>, Fig. 2<a>. Bye-pass passages 5<x> are provided with dampers 10<x> so that the gases may pass straight through the casing when desired. Ducts may be provided so that air may be taken off at various temperatures. The heating cells may be arranged in tiers 1<a>, 2<a>, as shown in Fig. 3, and the air passes through the two in series. In another modification the air and gases pass through the heating elements in directions at right-angles to each other. When used with steam boilers of the cylindrical marine type the heater b, Fig. 5, is placed above the smoke-box e so that the waste gases pass through it direct to the chimney. The inlet and outlet air ducts c, d are arranged between the heater and the boiler e so that the air flows in the opposite direction to the waste gases. Steam or air pipes for blowing out soot are placed where desirable. Different metals may be used for the plates in different groups in order to resist corrosion.
Patent GB-237755-A (GB)
Title: Sausage-linking machine
IPC: A22C11/10
Filed: 1924-09-20
Abstract: 237,755. Hirsch, O. C. L. Sept. 20, 1924. Clutches, claw. - In a sausage filling and linking machine, the twisting mechanism is operated by a clutch, Fig. 5, in which a gear wheel 94 having projecting pins 95 is intermittently rotated by a continuously rotating disc 84 carrying a pivoted lever 85 urged towards the disc by a spring on the pin 88. The lever 85 engages with one of the pins 95 until the lever is raised by a cam plate 92.
Patent GB-402196-A (GB)
Title: Change-speed gearing for motor vehicles
IPC: F16D23/06
Filed: 1932-08-09
Abstract: 402,196. Change speed gearing. ALLTREE, A., Rydal Dene, Pilling Lane, Preesall, near Fleetwood, Lancashire. Aug. 9, 1932, No. 22278. [Classes 80 (i) and 80 (ii).] Change-speed gearing of the type described in Specification 335,761, [Class 80 (ii), Gearing, Variable-speed &c.], is modified to obtain synchronism in the engagement of the second speed, or of the second and first speeds. A gear 7, Fig. 6, with long splines or walls 7d, Fig. 2, engaging grooves in a driven shaft 4 carries clutch teeth 7a which engage teeth 6a on a loose constant-mesh gear 6 to effect second speed. The clutch teeth are synchronized by prior engagement of a friction cone 14 rigid with sleeve segments 14a, Fig. 9, which pass through windows 7c, Fig. 2, in the gear 7. The gear 7 can slide relatively to the sleeve segments 14a. The segments have wider and narrower parts separated by inclined shoulders 14c. In the neutral position of Fig. 6, the cone 14 is carried by adhesion forward with the gear 6 so that the wall 7d bears on a narrow sleeve part as shown in Fig. 9. As the gear 7 is thrust leftwardly towards clutch engagement, the wall 7d engages the shoulder 14c so as to thrust the cone 14 into firm engagement. On synchronism, the wall 7d slides clear of the shoulder 14c and the clutch teeth 7a, 6a engage without shock. Third and fourth speeds are preferably engaged by the sliding of a double claw clutch 3 synchronized by two cones 15, 16 on separate segmental sleeves 15a, 16a with shoulders 15c, 16c. The means for synchronizing the gear teeth of the gear 7 and of a countershaft pinion 11 comprise an auxiliary pair 18, 12 similar in size. The gears 11, 12 are fast on the countershaft 13 but the gear 18 is loose and adapted to drive a cone 17 fast on the other ends of the sleeve segments 14a, as shown in Fig. 9. When the gear 7 is slid to the right to engage first speed, the walls 7d strike shoulders 14d carrying the cone 17 into firm engagement so that the gear 7 is speeded up or down sufficiently for shockless engagement. The cones 14, 17 may be on separate segmental sleeves like the cones 15, 16.
Patent GB-249279-A (GB)
Title: Improvements in, and relating to, the drying of road-making aggregates and other broken or granular materials
IPC: F26B17/12
Filed: 1924-09-23
Abstract: 249,279. Wake, J. F. Sept. 23, 1924. Gravity, materials descending by; discharging- devices.-Apparatus for drying granular material, such as road aggregates, comprises pipes or columns each composed of funnel-like members 36 arranged within a casing 10, the materials being fed into the upper part of the casing and passing through the pipes, in countercurrent to hot gases supplied through a duct 20 to a discharge chamber 29. The material is discharged from the chamber 29 through the openings 42 in a rotary disc 41 which forms the base of the chamber. Ducts 47, 49 are provided for supplying and exhausting gas to or from the compartments 15 into which the casing is divided by the plates 14 supporting the funnel-like members. In modifications, the funnel-like members are composed of truncated cones between which distributing cones are interposed.
Patent GB-913588-A (GB)
Title: Thermoelectric materials and their production by powdered metallurgy techniques
IPC: C22C1/04
Filed: 1961-06-21
Abstract: 913,588. Thermoelectric devices. WESTINGHOUSE ELECTRIC CORPORATION. June 21, 1961 [Aug. 12, 1960], No. 22516/61. Class 37. [Also in Group II] A thermoelectric element comprising an aniisotropic intermetallic compound of the general formula:- A 2(1-x) B 2x Te 3(1-y) Se 3y  + not more than 0.5% doping agent, where A is Bi, Tl or In; B is Sb, As or Bi; x and y vary from 0 to 1; the doping agent is at least one of Pb, Ge, Ag, Cs, I, Br, Cl, S, Sn and Hg, is formed by pressing the powdered compound and attaching electrical contacts to at least one of two opposite faces of the element which are parallel to the pressing direction. The pressed compact 30 (compacting direction A-A<SP>1</SP>) with the required electric current flow in direction B-B<SP>1</SP> is sintered, hot-pressed or coined and contacts 32, 34 of nickel, silver, steel, aluminium or " Kovar " (Registered Trade Mark), are attached to surfaces 36, 38 by hot pressing, soldering, brazing, electro- or electroless-plating or flame spraying. As shown in Fig. 6, a P- type element 112 and an N-type element 115 are joined by a copper or silver strip 116, end faces 118, 121 being parallel to the direction of compaction of the elements. Metal plates 122 and 124 which may be finned, are attached to the other end faces and a conductor 126 in circuit with a D.C. power source 128 and switch 130 is connected to the end plates so that when a current flows between 112 and 115 cooling is effected on 118, 121 and 116 and heat is removed at 124 and 122. Specification 903,731 is referred to.