baber/WOPTO huggingface dataset:
Patent GB-815892-A (GB)
Title: Improvements in or relating to fastening devices
IPC: F16B21/08
Filed: 1954-08-20
Abstract: 815,892. Stud and socket fastenings. REYNOLDS, J. Aug. 22, 1955 [Aug. 20, 1954], No. 24357/54. Class 44 A fastening device for connecting apertured members 4, 5 comprises spaced oppositely directed resilient head portions 1 and means 2 connecting said head portions, a part of which immediately behind each head portion is of lesser diametrical dimension than the largest diametrical dimension of said head portions and the central part of which is constitued by an enlargement or flange 3 which is of greater diametrical dimension than the longest diametrical dimension of the head portions and which is adapted to lie between the members and to serve as a spacer or cushion, each said head portion being such that it can be passed through the aperture in a member 4, 5 by relative displacement of said member and said device, and being of such shape and size relatively to the size of the aperture that in passing through said aperture it first contracts and then resumes its original size and shape so that the edge of the aperture is located behind said head portion. The lower edges of the head portions can be chamfered if desired for ease of assembly. The head portions can be expanded or distorted after assembly with the members 4, 5 either by providing the device with an axial bore to receive a nut and bolt or by providing either or both head portions with a tapering depression to receive a tapering plug. The head portions can also be secured by a horse-shoe shaped member inserted under the head portions. The head portions can be of frusto-conical shape as shown or of domed or spherical shape and each can be hollow and provided with a vent to enable it to be more easily compressed to pass through the aperture in the member 4 or 5. As alternative to making the head portions hollow they can be provided with ribs. The device is made of rubber or polyvinyl chloride and can be made in strip or sheet form with the enlargement or flange forming an integral part of the strip or sheet.
Patent GB-1430677-A (GB)
Title: Process for the bulk polymerization of acrylonitrile
IPC: C08F20/42
Filed: 1973-05-22
Abstract: 1430677 Bulk polymerization of acrylonitrile MONTEDISON FIBRE SpA 22 May 1973 [23 May 1972] 24385/73 Addition to 1337162 Heading C3P Acrylonitrile, alone or in admixture with up to 50 molar per cent of at least one ethylenically unsaturated comonomer, is polymerized in bulk by a process using (a) a continuous or semi-continuous polymerization procedure, (b) 2,2<SP>1</SP>- azo - bis - (2,4 - dimethyl - 4 - methoxyvaleronitrile) as a free radical catalyst, (c) a reaction or dwell time Q of sufficient duration to allow the catalyst to decompose to at least half its initial concentration, and (d) a concentration of catalyst which is at least equal to 2À10<SP>-3</SP>.Q moles/litre where Q is the dwell time in hours. Polymerization may be effected in the presence of small amounts of chain transfer agents (e.g. mercaptans) and organic diluents. Optional comonomers include (meth)acrylate esters, unsaturated ketones, vinyl esters, e.g. vinyl acetate, vinyl ethers, styrene and alkyl styrenes, vinyl or vinylidene chloride, vinyl fluoride, methacrylonitrile and butadiene. The acrylonitrile polymers obtained are stated to be even whiter and more heat-resistant than those described in the parent Specification 1,337,162.
Patent GB-478055-A (GB)
Title: Improvements in change speed gear
IPC: B62M11/14
Filed: 1937-09-07
Abstract: 478,055. Change speed gearing. DERNIER, R. Sept. 7, 1937, No. 24407. [Class 80 (ii)] A two-speed gear suitable for cycles comprises stepped planet gears 7, 8, Fig. 1, in a sliding carrier 9 provided with clutch teeth which relieve the planet pinions from all transmission strains on direct drive. Inside the bottom bracket 4 is journalled the crank axle 1 with a long boss 2 loose upon it carrying the usual sprocket 3. The planets 7, 8 mesh with sun gears 5, 6 fast respectively upon the axle 1 and the boss 2. Fig. 1 shows the position for geared drive in which the carrier 9 is held against rotation by dogs 16 on its end face engaging dogs 17 on a fixed end cup 13. The carrier 9 has two internal sets of clutch dogs 15, 18, Fig. 4, in different planes, and during geared drive these are both disengaged and idle. When the carrier 9 is slid to the right of Fig. 1 as by turning a crank linkage 11, the dogs 18 and 15 slide simultaneously into engagement with the gear teeth of the sun gears 5, 6 so that all driving strains necessarily pass through the carrier 9 and not through the planets. As shown in Fig. 3, there are three individual dogs 15 and two segments of dogs 18. While a gearing-down form is shown, the invention can equally well be in a gearing-up arrangement.
Patent GB-739215-A (GB)
Title: Wide-angle objective
IPC: G02B13/04
Filed: 1953-09-04
Abstract: 739,215. Lenses. BERTELE, L. Sept. 4, 1953 [Sept. 8, 1952], No. 24470/53. Class 97 (1). A wide angle objective consists of two positive components separated by a diaphragm space and bounded by at least three negative meniscus components on the object side and one negative meniscus component on the image side, all the air spaces between the negative components on the object side being in the form of menisci concave to the diaphragm and preferably having a total axial thickness greater than 0.24 times the focal length. Data are given for one example.
Patent GB-949593-A (GB)
Title: Apparatus for producing an electrical signal magnetically
IPC: G01D5/14
Filed: 1961-07-06
Abstract: 949,593. Locating magnetic bodies. SCHUCKERTWERKE A.G. July 6,1961 [July 7, 1960],No.24495/61. Heading G1N. The presence of a magnetisable object 13, Fig 1, disturbs the symmetry of a magnetic circuit containing two equal opposed magnets 6 and 7, giving rise to a magnetic field between the polepieces 4 and 5, and hence to the generation of a Hall voltage between the terminals 9 and 10 of current carrying material 1. The Hall voltage, which, for movement of body 13 in the direction of arrow 14 passes successively through a maximum of one polarity, zero, and a maximum of the opposite polarity, may be fed to a transistor flip flop circuit.
Patent GB-1465755-A (GB)
Title: Fluoroelastomer-based composite material
IPC: C09D127/12
Filed: 1974-06-03
Abstract: 1465755 Friction clutches CATERPILLAR TRACTOR CO 3 June 1974 [4 June 1973] 24529/74 Heading F2C [Also in Division C3] A friction element for clutch plates comprises a layer of friction material bonded to a backing plate, said material comprising calcium oxide and particles of a vitreous or ceramic material dispersed throughout a fluoroelastomer matrix. Examples are given in which clutch discs are produced by applying to steel plates a mixture of calcium oxide, hexafluoropropylene/vinylidene fluoride copolymer, fibreglass particles and carbon black and curing the mixture.
Patent GB-534041-A (GB)
Title: Improvements relating to friction brakes
IPC: F16D65/22
Filed: 1939-08-28
Abstract: 534,041. Vehicle brakes. ROVER CO., Ltd., and IVERSEN, P. A. SCOTT-. Aug. 28, 1939, No. 24653. [Class 103 (i)] Hydraulically-oper. ated friction brakes have in combination with the shoes a friction stop adapted to hold the shoes in contact with complementary members such as brake drums of vehicle brakes. In the construction of Fig. 2 the operating piston d operating the shoe b has a frictional force exerted upon it through a spring ring k, mounted in a groove of the piston and pressing against the walls of the cylinder c; in a modification of this form a helical compression spring is inserted in a groove together with the ring k so that the force is exerted upon the piston through the compression spring. In similar constructions the spring k is mounted in the cylinder walls and grips the piston. In other constructions the friction elements may be connected by links to the shoes or one element may be mounted on one shoe and connected to another.
Patent GB-960528-A (GB)
Title: Process for the preparation of phosphorylated steroids
IPC: C07J75/00
Filed: 1962-06-28
Abstract: Steroid compounds of the formula <FORM:0960528/C1/1> or salts thereof, wherein -C1-C2- is the divalent radical <FORM:0960528/C1/2> X is a hydrogen or fluorine atom, R1 is an <FORM:0960528/C1/3> , or O=group and R2 and R3 are lower alkyl groups containing 1 to 6 carbon atoms, are obtained in a process characterized by (a) reacting a 21-hydroxy steroid of the formula: <FORM:0960528/C1/4> wherein R1 and X are as defined above, and R5 is a hydrogen atom or a lower alkyl group containing 1 to 6 carbon atoms, and R6 is a lower alkyl group, and -C1-C2-C3-C4-C5-C6- is the radical of <FORM:0960528/C1/5> with a lower-alkyl sulphonyl halide or a mono-nuclear aryl sulphonyl halide to produce compounds of the formula: <FORM:0960528/C1/6> wherein R1, R2, R5, R6, X and -C1-C2-C3-C4-C5-C6- are as defined above, and then (b) hydrolysing to the corresponding 16a , 17a -dihydroxy compound, and then (c) converting the OSO2R2 compound to an iodide by reaction with an iodide salt, and then (d) converting the iodide to an <FORM:0960528/C1/7> group or a salt thereof by reaction with phosphoric acid or a salt of phosphoric acid, and then (e) reacting the product with a ketone of the formula <FORM:0960528/C1/8> or an acetal or ketal thereof to form the product of the first formula above.  The 16a , 17a -methoxymethylenedioxy starting compounds are obtained by reacting the corresponding 16a , 17a -dihydroxy compounds with an ortho ester of the formula R3C(OR4)3 wherein R3 is hydrogen o lower alkyl and R4 is low alkyl.  As sulphonyl halide there may be employed methane sulphonyl chloride, benzene sulphonyl chloride or p-toluene sulphonyl chloride.
Patent GB-915809-A (GB)
Title: Process of catalyst rejuvenation
IPC: B01J23/92
Filed: 1959-07-20
Abstract: A catalyst comprising 3-40% chromium oxide supported on a gel-type alumina is rejuvenated at 1050 DEG -1500 DEG F. in presence of air or other oxygen-containing gas for 4-40 hours.  U.S.A. Specification 2,474,014 is referred to.ALSO:A cyclic adiabatic process for the dehydrogenation of C2-5 aliphatic hydrocarbons, wherein the catalyst in the form of a fixed bed of particulate material is comprised of 3-40% chromium oxide supported on a gel-type alumina, is characterized by periodic interruption of the process at intervals of not less than ten days to rejuvenate the catalyst at 1050-1500 DEG F. in presence of air or other oxygen containing gas for 4-40 hours. The catalyst may also contain alkali metal oxides.  U.S.A. Specification 2,474,014 is referred to.
Patent GB-517100-A (GB)
Title: Improvements in hinges
IPC: E05D3/10
Filed: 1938-08-25
Abstract: 517,100. Hinges. BEATON & SON, Ltd., G. and MELTZ, M. Aug. 25, 1938, No. 25005. [Class 65 (ii)] A concealed multiple-jointed hinge for car doors comprises a pair of butt hinges 13, 14 connected respectively to the door pillar 11 and door 10, and having their inner flaps 17, 18 connected by four pivoted links 19, which permit the flaps 17, 18 to separate during the open. ing of the door, and fold between them wher the door is closed. The ends of the links may have intermeshing teeth 22 to prevent sag.
Patent GB-1116166-A (GB)
Title: Improvements relating to removing diffusible liquid
IPC: G03C11/16
Filed: 1966-06-06
Abstract: 1,116,166. Drying photographic film. EASTMAN KODAK GO. 6 June, 1966 [11 June, 1965], No. 25054/66. Heading F4G. A process of removing diffusible liquid from a permeable solid material, e.g. drying a photographic emulsion layer, comprises contacting the solid material with a composition containing at least 20% by weight of an organic material having an average molecular weight of at least 900 and being at least 30% soluble by weight in the diffusible liquid, and after the composition has removed a substantial amount of the diffusible liquid from the material, removing the composition from contact with the material. The composition may be in a solid form, e.g. in the form of a rotating or non-rotating cylinder over which the material passes, or the material may be immersed in a liquid form of the composition. The liquid form may comprise 0-400% by weight, based on the organic material; of the diffusible liquid which may be water.
Patent GB-417414-A (GB)
Title: Improved rotary multi-colour offset printing machine
IPC: B41F7/08
Filed: 1933-09-11
Abstract: 417,414. Printing machines. COLVILLE, R. T., Argyle Avenue, Chelsea, Victoria, Australia. Sept. 11, 1933, No. 25149. [Class 100 (ii).] A multi - colour rotary offset printing - machine is fitted with three or more impression surfaces 11<a>, 11<b>, 11<c> on the impression cylinder 11, and the sheets are fed from a feed table 15 to the grippers of alternate surfaces only. These sheets are printed with multi-impressions by means of offset printing-cylinders 12, 12a, each of which is printed with a two-colour impression from plate cylinders 13, 13<a>: 13b, 13<c>. The printing-surfaces 12b occupy only a half of the periphery of the cylinders 12, 12<a>, since each impression surface is followed by a blank space on the impression cylinder. Instead of superposing the multi-impressions from the offset surfaces 12b the sheets may be perfected in multi-colours by fitting offset blankets on the cylinder 11 and printing from the cylinder 12<a> on these blankets before they receive sheets from the table 15. The sheets then receive offset multi-colour impressions on each side. The impression cylinder may be fitted with five, or other odd number of impression or offset blankets, and more than two plate cylinders may be provided for each offset cylinder, but in each case only half the periphery of each printing-cylinder is plated.
Patent GB-1129256-A (GB)
Title: Improved chromatographic column
IPC: G01N30/30
Filed: 1966-06-07
Abstract: 1,129,256. Gas and liquid chromatographic columns. ETUDES ET RECHERCHES SCIENTIFIQUES ET INDUSTRIELLES. 7 June, 1966 [16 July, 1965], No. 25246/66. Headings B1L and B1X. A packed column for gas or liquid chromatography which is at least 2 cm. wide comprises elongated elements separated from one another and passing through the column parallel to the axis thereof. The number and cross-section of the elements is preferably such that no point in the packing is more than 4 mm. from the adjacent elements: 6-20% of the free cross sectional area of the column is preferably taken up by the elements. The elements may be in the form of rods, wires or tubes and in the latter case may be used to facilitate heating of the packing, e.g. by passing a heating fluid there-through or including an electric heating element therein (Fig. 3, not shown). Fig. 1 shows a column 2 having inlet and outlet members 1 attached by necks 3 and suitable sealing arrangements. The elongated elements 11 extend through the column packing 9, sintered metal (plug 8, and inlet and outlet members 1, but the axial element 11a extends only to the surface of the plug 8. There is reference to a column packed with refractory brick with rods of glass, alumina or copper.
Patent GB-443643-A (GB)
Title: Improvements in and relating to wheel braking mechanism
IPC: F16D55/31
Filed: 1934-09-03
Abstract: 443,643. Brakes. PETTERS, Ltd., BRUCE, R. A., and VOSS, E., Westland Works, Yeovil, Somerset. Sept. 3, 1934, No. 25326. [Class 103 (i)] A brake comprising a fixed braking surface, disc a, and a braking surface, discs v, rotating with the vehicle wheel is operated by a mechanical servo device operated by a friction ring u on one of the discs v, which is driven by the vehicle wheel, the discs v being capable of rotating in a plane inclined to the plane of the wheel in view of the axial freedom of the drive of the discs v, which drive is formed by dogs y and notches z. The foot pedal operates three symmetrically arranged interconnected levers g which by means of pins m and trunnions n turn levers o and spindles p which by short cranks q and rollers r press a servo member t into engagement with the friction ring u on a disc v rotating with the wheel w. The consequent rotational movement given to the member t turns it and a toothed wheel 3 connected thereto and gearing with quadrants 4 adapted to turn spindles 5 and face cams 6 to draw together discs d, d<1> and to grip discs v rotating with the wheel against a fixed disc a. Discs a, d<1>, d<1> are connected together by links 10, 11 which allow relative axial movement. Face cams 6 are connected by splines to spindles 5 and are axially adjustable by using bolts 7.
Patent GB-283634-A (GB)
Title: Improvements relating to apparatus for discharging railway trucks into vessels
IPC: B65G65/28
Filed: 1926-10-12
Abstract: 283,634. Evans, W. E., (Demag Akt.- Ges.). Oct. 12; 1926. Axle-trucks.-A truck 20' movable on two sets of rails at right angles is provided with fixed and adjustable wheels 46, 40, the latter being carried on discs 41 which are turned by a motor 44 in order to raise and lower the wheels.
Patent GB-1405379-A (GB)
Title: Method of making pencil leads for writing and drawing  purposes
IPC: C09D13/00
Filed: 1973-05-29
Abstract: 1405379 Carbon fibres O SCHWANHAUSSER G SCHWANHAUSSER and H SCHWANHAUSSER [trading as SCHWAN-BLEISTIFT-FABRIK SCHWANHAUSSER & CO] 29 May 1973 [7 June 1972] 25403/73 Heading C1A [Also in Division B6] Pencil leads are made by producing a monofilamentary member from a material comprising graphite in combination with one of polyacrylonitrile and its copolymers, polyamides or cellulose xanthogenate, subjecting the filament to oxidative thermal cross-linking at 200‹- 300‹ C. in an O 2 -containing atmosphere, carbonizing the filament at 300 to 1200‹ C. and then cutting the filament into pencil leads of required lengths. The starting material may also include carbon black, and the filament, after carbonization may further be graphitized in an inert atmosphere. The filaments may also be stretched prior to the thermal cross-linking and held under tension during the carbonizing steps.
Patent GB-532603-A (GB)
Title: Improvements in or relating to aircraft wings
IPC: B64C3/00
Filed: 1939-09-11
Abstract: 532,603. Aircraft wings. CONNELLY, T. M. (Budd Manufacturing Co., E. G.). Sept. 11, 1939, No. 25544. [Class 4] An aircraft wing has a centrally-disposed shear web 100, 101, 102, Figs. 1 and 2, intersected by continuous braced ribs 72 covered with corrugated material 98 faced with a skin 96 stressed in a direction parallel to the corrugations. The wing is made of thin stainless steel sheet and the parts are secured together by spot welding. The corrugated covering is made stronger towards the shear web and the root of the wing by using two, three, or four sheets of superposed corrugated sheet. The corrugated covering at the trailing part of the wing has corrugations of smaller pitch and amplitude and is separated from the ribs by corrugated distance pieces 410. In order to make a resilient joint between the covering and flanges on cap strips 112 on the ribs 72, overlapping clips 270, Fig. 40, are first spot welded to the nodes of the corrugations at 283 and are then welded together and to the flanges of the cap strips at intermediate points 281. The clips are stiffened centrally by ridges 272. Strips of corrugated covering with stressed skins welded thereto may be made before assembly. Wing flap and aileron supporting parts of the wing also may be made as sub-assemblies. The shear web comprises panels of vertically corrugated material secured by channel and other members and spaced for the reception of the ribs. An inspection opening B, a space A for an oil tank, and a bomb rack 620 are provided.
Patent GB-966666-A (GB)
Title: Improvements in ovens having counterbalanced doors
IPC: F24C15/02
Filed: 1963-06-27
Abstract: 966,666. Oven doors. GENERAL MOTORS CORPORATION. June 27, 1963 [July 23, 1962], No. 25587/63. Addition to 885,479. Heading F4W. [Also in Division E2] In an oven as claimed in the parent Specification the stop member is engageable directly, and releasable, by a push-button member to allow the door to move from the horizontal to a lower position. The door 16 is supported by a cable 28 which passes over a pulley 116 mounted in a bracket 114 connected to counterbalancing springs 118, 120 and is anchored to the oven at 142. The stop member 96 comprises a U-shaped bracket pivoted on a pin 100 supporting a cable guide roller 98 and formed with flanges 108 adapted to abut flanges 110 on the bracket 114 to hold the door in the horizontal position. The push-button 74 is part of a synthetic plastics moulding 122 having a guide pin 126 slidable in a ferrule 70 and a flange 136 engaging depending tangs 104 of the stop member. When the button is depressed against the action of a spring 128 the stop member is tilted upwardly so that its flanges 108 move clear of the flanges 110 and the door is then free to take up its lower position. A striker 90 on the door cooperates with a spring-loaded latch-roller 82 to hold the door closed or in a slightly open " broil " position, and is also adapted to engage the top of the stop member to return it to its operative position should it fail to drop into this position under gravity.
Patent GB-175581-A (GB)
Title: Improvements in or relating to calculating machines and printing mechanism therefor
IPC: G06C19/04
Filed: 1920-09-11
Abstract: 175,581. Kuhrt, E. Sept. 11, 1920. Type-wheel actions.-Relates to printing- mechanism for calculating-machines of the type described in Specification 150,970, [Class 106 (i), Calculating &c.], and wherein the type-wheels are each carried on an arm independently mounted on a common shaft and consists in the provision of means for preventing the printing of zeros to the left of the highest significant figures. The type-wheels 52, which are actuated by racks 77 on slides 27 surrounding the partial products plates and operating as described in the above-mentioned Specification, are mounted on separate arms 53 which are pivoted on a shaft 55 and connected by rods 57 movably mounted by means of springs 59 in a frame 58 attached to a two-armed lever 62 worked by a cam-groove and roller 63 from the main shaft. The printing of unnecessary zeros is prevented by means of stops 87 on plates 86 which normally lie opposite the gaps between the noses 54 on the typewheel arms 51, the plates 86 being pressed to the right so that recessed projections 88 engage the slides 27. The plates are superimposed and a pin on one works in a slot in the plate above. When, in any bank, no key is depressed, the corresponding slide 27 makes a full stroke so that the recessed end 90 of the projections 88 allows the plate 86 to slide to the right to bring the stops 87 into the path of the noses 54 and thus prevent the type-wheel arms oscillating to their full extent to strike the platen 66. In the case of a slide 27 lying to the right of a bank in which a key has been depressed although it executes a full movement, a zero is printed since the corresponding plate cannot move owing to its slot 91 bearing against the pin 92 of the plate next below. Aligning for impression.-The type-wheels during their movement to effect the printing are held by an aligning bar 79 mounted on arms 80 pivoted on the shaft 55 and provided with lateral projections engaging the arms 56.