baber/WOPTO huggingface dataset:
Patent GB-1603042-A (GB)
Title: Bimetallic thermal trip
IPC: H01H71/16
Filed: 1978-04-27
Abstract: The trip device has a bimetallic trip element (4) and a shunt element (5) which is connected in parallel therewith, both elements being integrally formed from the same bimetallic material (1) and being separated from one another by connection points (2, 3) for the connection of electrical conductors. As a result of the integral construction, the contact resistance at the connecting points between the trip element and the shunt element is defined, as a result of which subsequent calibration after assembly is no longer necessary. <IMAGE>
Patent GB-314659-A (GB)
Title: Improvements in intermittently operating carbonising chambers
IPC: C10B27/06
Filed: 1928-06-09
Abstract: 314,659. Woodall-Duckham (1920), Ltd., and Duckham, Sir A. M. June 9,1928. Retorts a are provided with an upper gas offtake b connected to an upper foul main g and a lower off-take c connected to a lower foul main e, the bottom off-take being normally closed, and opened at a predetermined gas pressure within the chamber. Up-takes f connect the two foul mains, the lower off-take entering a liquid seal d. Liquor can be sprayed into the up-takes f either at l or m for the purpose of maintaining the liquor level in the lower main e. Bye-pass pipes are provided for passing the liquor should any of the up-take valves h be closed.
Patent GB-1093645-A (GB)
Title: Apparatus for determining the rotation of a plane of optical polarisation
Inventor: LINDE FRITZ
IPC: G01J4/04
Filed: 1965-04-21
Abstract: 1,093,645. Polarizing apparatus. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. April 21, 1965, No. 16806/65. Heading G2J. [Also in Division G1] Apparatus for determining the rotation of a plane of polarization comprises a light source 6, a polarizer 8, an analyzer 2 mounted in a rotary hollow apertured cylinder 1 the axis of which is perpendicular to the polarizing direction of the polarizer 8, the polarizing plane of the analyzer 2 being set at an acute angle α to the axis of the cylinder so that, upon rotation of the analyzer, light pulses pass from the analyzer through the apertured cylinder, these pulses having planes of polarization alternately at +α and -α to the axis of rotation of the cylinder, together with means for comparing the intensities of the alternate pulses. Photo-electric means 10 receives light from the analyzer 2, the pulses being of equal intensity when no sample is placed in the light path between the polarizer and analyzer. For testing fluids a stationary cuvette 13 is located in the light path and the polarizer 8 is mounted for rotation to cancel out the rotation of the polarization plane caused by the fluid in the cuvette. When testing a solid sample the polarizer is fixed and the sample is rotated relative to the optical apparatus.
Patent GB-221897-A (GB)
Title: A lard, butter or margarine cutter
IPC: A01J23/00
Filed: 1923-06-28
Abstract: 221,897. Baker, M. June 28, 1923. Butter cutters. - In cutters for subdividing bulk lard, butter or margarine into blocks of the type involving an adjustable U-shaped frame carrying spaced wires, the frame is adjustable either side of the vertical and is locked by slotted stays and thumb-screws. As shown, the frame 6 carrying spaced wires 7 is pivoted at 11 to the base 1 and is adjustably secured by pivoted stays 12 slotted at 13 to engage screws 14 fitted with nuts 15. The wires 7 are attached at one end to hooks 8 at one side of the frame 6, and at the other to a bar 9 adjacent the other side of the frame and adjustable thereto by nuts 10. The block 21 of lard &c. is supported by a board composed of two hinged sections 3, 4 sliding within angle plates 2 on the base 1. In use, the block is placed on the member 3, the frame 6 is adjusted to the appropriate cut and the block is pushed through the wires to sever it into slabs; after which the member 4 is turned up to contact with the block and the latter turned through a right angle as shown in Fig. 5. The frame 6 is then re-adjusted and the members 3, 4 returned with the block to sever the slabs into blocks or rolls. The block may be divided centrally by a wire 22 detachably connected to a hook 23 on the frame 6 and to a pivoted hook 19 normally housed in the bed 1. The member 3 is slotted longitudinally at 16 for the passage of the wire 22 and the hook 19 is sharpened to sever the paper beneath the block. A pusher 26, Fig. 16, may be secured to the member 3 by a bolt 27 passing through the slot 16, rotation of the pusher being prevented by a pin engaging the slot or by a flattened shank 28 on the bolt 27. The block 21 is centred by lines or marks on the board. The board may be fixed and the bed 1 and frame 6 movable.
Patent GB-977653-A (GB)
Title: Improvements in or relating to the manufacture of pneumatic tyres
IPC: B29D30/58
Filed: 1961-05-10
Abstract: 977,653. Moulding tyres. DUNLOP RUBBER CO. Ltd. May 10, 1961 [May 19, 1960], No. 16943/61. Heading B5A. In the manufacture of pneumatic tyres, a tyre carcass 12 in cylindrical form and a tread band 13 are mounted separately in a diaphragm, vulcanizing press 1 having a pair of separable mould halves 2, 3 and an inflatable, flexible diaphragm 4, the press is closed and the diaphragm 4 simultaneously inflated to shape the carcass 12 and to press its outer surface 14 against the tread band, inner surface 15 and to mould the completed tyre which is then vulcanized by heating the mould. The tread band 13 may be supported in the lower mould 3 as shown or, alternatively, on prongs between the mould halves 2, 3 which are withdrawn just before the mould is completely closed.
Patent GB-1003515-A (GB)
Title: Improvements in the production of steel in open hearth furnaces or top blown converters
Inventor: KESTERTON ARTHUR JOHN
IPC: C21C5/46
Filed: 1961-05-10
Abstract: <PICT:1003515/C6-C7/1> Steel is produced in an open hearth furnace or a top blown converter by initially directing on to a charge of solid or molten ferrous scrap a flame fed by streams of gaseous carbonaceous fuel and preheated oxygen, the proportions of oxygen to fuel being adjusted for complete combustion in initial stages and refining in later stages as required.  The oxygen is preferably preheated by using the lance described in Specification 1,003,514, wherein part of the fuel supplied through annulus 12 surrounding a water-cooled nose portion 11 is entrained on escaping through orifices 14, in an outwardly flared annular stream of oxygen passing through Venturi 16 and internally burnt.
Patent GB-618451-A (GB)
Title: Improvements in and relating to methyl silicone elastomers containing si-bonded vinyl radicals
IPC: C08K5/14
Filed: 1946-06-05
Abstract: A silicone elastomer comprises a filler and a methyl vinyl silicone, the sum of the methyl and vinyl groups per silicon atom being between 1.98 and 2.0 and 0.18 to 5.0 per cent of the silicon atoms being connected to at least one vinyl group.  The elastomers are prepared from gums obtained by hydrolysis of a mixture of a dimethyl substituted silane and a monomethyl silane with .18-1.0 mol. per cent of a methyl vinyl substituted silane or a divinyl substituted silane. They may also be prepared by polymerizing a mixture of dimethyl polysiloxane with a methyl vinyl polysiloxane or a divinyl polysiloxane.  The methods of Specifications 592,018, 594,481 and 618,452 may be employed for preparing the gums.  Another suitable method is that of Specification 618,453, using appropriate amounts of methyl vinyl silane or of divinyl silane in place of some of the dimethyl silane or using a monovinyl silane, e.g. vinyltrichlorosilane in place of some of the monomethylsilane used in that Specification. Elastomers can also be prepared from high viscosity liquid silicones.  Conversion to elastomers is effected by compounding the gums or viscous liquids with fillers and curing catalysts and curing as described in the above-mentioned Specifications.  Lead oxide may be incorporated into the mixtures to neutralise excess acids as described in Specification 594,506.  The physical properties of elastomers prepared by hydrolysis of dimethyldichlorsilane containing .15 mol. per cent methyltrichlorsilane, followed by treatment with ferric chloride, milling with lead oxide, titanium oxide and benzoyl peroxide, and pressing and vulcanising are compared with those of elastomers prepared in the same way from mixtures which also contain stated amounts of methylvinyldichlorosilane or divinyldichlorosilane. Test results are also quoted to show that the percentage of benzoyl peroxide used to cure these elastomers containing vinyl radicals may be lower than for similar products not containing vinyl radicals.  In another example a high viscosity liquid methyl vinyl polysiloxane is prepared by polymerizing with 20.05N sulphuric acid the product of cohydrolysis of dimethyldichlorosilane, 5 mol. per cent methyl vinyl dichlorosilane and 0.12 mol. per cent monomethyltrichlorosilane. The product was washed, mixed with titanium dioxide and benzoyl peroxide and moulded.  It may be applied by rollers or doctor blades to fibrous sheet material and cured in situ (see Group VIII).  The products are also suitable for gaskets, shock absorbers or cable insulation.
Patent GB-1164794-A (GB)
Title: A Improved Method and Apparatus for Controlling Photographic Exposures
Inventor: FRANKLIN ROY WALTER
IPC: G03B7/083
Filed: 1966-04-19
Abstract: 1,164,794. Photo-electric exposure control. H . P. LITTLEJOHN (ELECTRONICS) Ltd. April 17, 1967 [April 19, 1966], No.17101/66. Heading G1A. In an arrangement for controlling the exposure of a photographic emulsion to an image wherein a photo-transducer is exposed to the image, the object giving rise to the image, to the light source illuminating the object, or to the light reflected from or passing through the emulsion and the current passing through or generated by the photo-transducer effects the discharge of a capacitor to terminate the exposure when the voltage across the capacitor falls to a predetermined value; the voltage across the capacitor effects actuation through a virtual earth operational inverting amplifier having a high resistance input. The voltage may be displayed on a meter calibrated in exposure units and density and a number of range changing capacitors may be switched. The capacitor circuit may include means whereby the cell current is independent of the voltage across the capacitor or a junction generator to give a logarithmic time scale. Additional currents may be fed to the capacitor during reset to allow for factors such as film speed half-tone screen density, and lens aperture. The apparatus may include an additional portable photo-cell to read incident light at the film plane or to serve as a densitometer in order to assist in setting up.
Patent GB-389458-A (GB)
Title: Improvements in means for the preheating of fuel in diesel engine installations
IPC: F02M61/00
Filed: 1931-06-12
Abstract: 389,458. Oil engines. HUMBOLDTDEUTZMOTOREN AKT.-GES., 149, Deutz- M³lheimerstrasse, Deutz, Cologne, Germany. June 12, 1931, No. 17122. Convention date, June 13, 1930. Void [Published under Sect. 91 of the Acts]. [Class 7 (iii).] Liquid fuel of high viscosity is preheated in a chamber 13 into which the exhaust gases of a twostroke cycle Diesel engine enter directly through a port 3. A pipe 5 of comparatively large bore connects the fuel tank 4 with the heating chamber 13, a pipe 7 of smaller bore being used to convey the fuel through a coil in the heater and thence through a filter 9 to a fuel pump 2. Vertical pipes 8, 9 allow air or vapour bubbles to escape to the top of the supply tank. A light fuel supplied from a tank 11 is used at starting.
Patent GB-497375-A (GB)
Title: Improvements in or relating to eyeglass frames
IPC: G02C3/00
Filed: 1937-06-19
Abstract: 497,375. Spectacles &c. CAWDERY, W. H. June 19, 1937, No. 17134. [Class 97 (i)] An eyeglass frame is supported on the head by means of one or more curved spring strips or wires g which are connected at one end to the bridge c of the eyeglasses and pass over the crown of the head to terminate at or near the base of the skull. In the form shown; the end of the spring is provided with a tapered pin f fitting frictionally into a correspondingly tapered socket e in the bridge. Alternatively the pin and socket may be cylindrical and held in engagement by a snap fastening. The end of the spring g may be outwardly bent as at m, Fig. 2, so as to incline the plane of the lenses to the vertical.
Patent GB-1424957-A (GB)
Title: Fluid pressure actuator
IPC: F15B15/10
Filed: 1974-04-19
Abstract: 1424957 Fluid-pressure actuators R F HOMBERGER 19 April 1974 [19 April 1973 28 Feb 1974] 17253/74 Heading F1D A fluid-pressure actuator comprise a pair of lift members 1, Fig. 1 each having a base-plate 3 with two guide arms 4 extending therefrom with respective guide surfaces 8 thereon which engage guide surfaces 6 on the side of the base-plate 3 of the other member 1, at least one of the members 1 having bores 12, 14, 10 which communicate with the interior of a bladder 20, Fig. 4, which is held between the mated members 1, via an aperture 24 in one side of the bladder. The bore 10 and aperture 24 are sealingly connected by an annular washer having both surfaces thereof provided with adhesive. The bladder 20 comprises two circular plastics flexible sheets connected at their edges to form an edge zone 20 which fits into a groove 18  in one of the members 1, groove 18 having its inner edge rounded. The lift members are preferably made of plastics. The bores shown may be provided with removable plugs as required. In further embodiments, a plurality of actuators can be used, either being connected in "parallel" whereby the same lift distance is produced with force multiplication Fig. 7 (not shown), or in "series" whereby multiple lift distance is attained Fig. 8 (not shown). The bladder may be replaced by a diaphragm attached at its edge to the baseplate of one member thus forming an inflatable chamber with an only partly flexible wall Fig. 10, (not shown).
Patent GB-433085-A (GB)
Title: An improved bracket or pillar clip for supporting pipes and the like
IPC: A47K10/10
Filed: 1934-06-11
Abstract: 433,085. Clip brackets. TIERNEY, J, P., 376, High Street, St. Kilda, Victoria, Australia. June 11, 1934, No. 17258. [Class 52 (v)] [See also Group XXV] A bracket or clip for supporting a pipe or the like comprises a stem 2 which may be hollow and is enlarged at one end to form a base 3 and is provided at the other end with two quarter circular jaws 6 which carry the pipe &c. 7. The stem is slotted at 4, the slot allowing the jaws 6 to spring slightly apart when the pipe &c. 7 is pushed in. A clamping screw 8 may be provided to clamp the jaws together to hold the pipe 7 firmly. The bracket may have a hole 11<b> in its base to permit passage of a screw 12 by means of which it is secured to a plug let into the wall &c., or to a mounting member 13. The hole 11<b> may be tapped so that the bracket can be screwed onto a stud projecting from a wall &c. The jaws 6 have their surfaces 6<e> curved both longitudinally and laterally so that they merge gradually into the surface of the supported pipe and permit easy cleaning of bracket and pipe. Specifications 1456/88, [Class 16], and 6289/91, [Class 52], are referred to.
Patent GB-169030-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/18
Filed: 1920-06-25
Abstract: 169,030. Kovßcs, T. June 25, 1920. Reservoir pens.-Relates to reservoir writing or drawing pens of the type in which an overflow chamber, in communication with the atmosphere and the ink reservoir, is formed be tween a hollow feed-member and the reservoir. The ink reservoir a is fitted with a hollow feed member b having a shoulder y which serves to close the reservoir. An annular capillary chamber f, tapering upwardly and bounded' by a shoulder k on the feed member b, is formed between the outer surface of the feed member and the wall of the reservoir. The chamber f is in communication with the air through a radial hole s in the wall of the reservoir; with the reservoir through a slot i in the collar k; and with the bore h of the feed member through capillary slots g extending the length of the chamber. The capillarity of the chamber f is reduced opposite the hole s by a. flattened part of the wall of the member b. As the quantity of excess ink increases in the chamber f, its flow is retarded owing to the increased capillary action of the tapering chamber, and it is finally fed back into the bore h through the slots g. The collar k forms the bottom of a capillary channel j around the upper end of the member b, and which always retains some ink, so that air passing into the reservoir through the slot i can only do so in small bubbles, thus preventing large variations in pressure in the reservoir. The lower part of the member b is formed as a spigot m to which is removably attached a point-section c, which may be provided with a chisel-shaped point q for drawing lines of constant width, and broad flat sides p to guide the pen in contact with a ruler. The spigot m is provided with a capillary tube n establishing communication between the reservoir and' the bore t of the point-section.
Patent GB-184000-A (GB)
Title: Improvements in means for filling bottles with liquids
IPC: B67C3/26
Filed: 1921-06-24
Abstract: 184,000. Phillips, F. G. June 24, 1921. Bottling.-In a liquidcontainer in which the discharge outlet, through which bottles are filled, is fitted with a gravity valve which is lifted from its seat by the placing in position of the bottle, the valve C<3> is carried by a frame C connected, as by a rod C<6>, to the top thereof, and movable over the outside of the discharge tube B<1>, the frame being raised by the top of the bottle D contacting with an external flange C<2> thereon.
Patent GB-1145249-A (GB)
Title: Improvements relating to thermal insulation
Inventor: BUCKNELL RONALD ERNEST
IPC: F16L59/04
Filed: 1967-04-14
Abstract: 1,145,249. Reactor shields. WHESSOE Ltd. 9 April, 1968 [14 April, 1967], No. 17335/67. Heading G6C. The reactor concrete pressure vessel 1 has a metal lining 2 which is covered by a layer of non- metallic fibrous insulating material, 4, secured by the studs 3 and metal sheets 6. The material 4 is compressed by the metal coverplates, 7, engaged by the nuts 8 and washers 9. The latter make line contact with 7 to reduce heat losses, and thermal convection within the fibrous layers is prevented by the metal strip seals 12. Gaps between adjacent coverplates 7 serve as vents to permit rapid gas pressure changes without damage. Metal gauze filters are fitted at the gaps. An alternative form of seal 12 is formed by corrugations in the sheets 6, of sufficient depth to engage the adjacent sheets. The seals may extend through one or more layers of the insulating material. Distance pieces 5 may be provided between successive layers of insulating material or shoulders may be mounted on the studs 3.
Patent GB-718709-A (GB)
Title: Commutators for dynamo-electric machines
Inventor: LUCAS SYDNEY
IPC: H01R39/04
Filed: 1951-07-23
Abstract: 718,709. Commutators for dynamoelectric machines. ROTAX, Ltd. July 15, 1952 [July 23, 1951], No. 17373/51. Class 35 To prevent centrifugal bending, commutator segments are formed with a narrow dovetail b near the centre of the segments, a further securing notch c being provided at one or each end of the commutator. As shown, the dovetail is secured between a fixed V-ring f and a movable V-ring g forced against the commutator by a nut h. The notch is engaged by an additional ring i secured by screws j.
Patent GB-595912-A (GB)
Title: Improvements in the generation of chlorine dioxide
IPC: C01B11/02
Filed: 1945-07-07
Abstract: Chlorine dioxide is generated in admixture with an inert diluent gas, e.g., air by contacting a solid alkali or alkaline earth metal chlorite or chlorate with a mixture of a gaseous acid, e.g., hydrochloric, nitric or acetic acid and the diluent gas, the mixture having been formed by passing the diluent gas into contact with a solution of the acid maintained under constant conditions, the acid concentration of the mixture being controlled by regulating the rate at which the diluent gas is passed into contact with the acid solution.
Patent GB-1037322-A (GB)
Title: Filaments and staple fibres
Inventor: KINNEAR ARTHUR MURRAY GARDINER
IPC: D01F6/04
Filed: 1962-05-07
Abstract: Filamentary tows of stereo-regular polypropylene or of polyesters based on terephthalic acid have variable shrinkage characteristics along their length, a shrinkage between 10 and 60% when immersed in boiling water for 10 minutes, with a minimum spread of shrinkage of at least 25%, and an optical birefringence of 30 x 10-3 to 200 x 10-3 (polyesters) or 15 x 10-3 to 27 x 10-3 (polypropylene).  The period of variation of the shrinkage corresponds to a tow length greater than 5 times the shortest fibre length into which the tow is to be converted, but less than 100 m.  The tows are made by subjecting undrawn filaments having an optical birefringence of 0 to 12 x 10-3 to a drawing process in which either the draw ratio or the temperature is continuously varied between defined limits with a substantially uniform period of variation.  Examples describe the preparation of tows of polypropylene and polyethylene terephthalate having shrinkage characteristics which vary sinusoidally along the length of the filaments at frequencies of 4.0 x 10-5 cm-1 to 7.7 x 10-4 cm-1.  The tows are converted into staple fibres and spun yarns.
Patent GB-199260-A (GB)
Title: A device for indicating stolen property
IPC: B60R25/00
Filed: 1922-06-24
Abstract: 199,260. Black, J. June 24, 1922. Guarding against unauthorized use.-A theftindicating attachment consists of a plate bearing appropriate wording and attached to the vehicle or other object by a lock and steady pins. In the form shown, a box e is attached to the vehicle, having a slot d under the edges of which engage the latches c of a lock b on the plate a, and sockets f<1> to receive steady pins f. The lock or pins may be attached to the vehicle, instead of to the plate.
Patent GB-1422449-A (GB)
Title: Method and apparatus for forming glassy material from cement  flour
IPC: C03B19/10
Filed: 1973-04-12
Abstract: 1422449 Forming glass powder ITALCEMENTI FABBRICHE RIUNITE CEMENTO SpA 12 April 1973 [13 April 1972] 17648/73 Heading C1M [Also in Division G1] Cement flour is continuously mixed with a flux therefor in metered amounts, the mixture is continuously fed into a crucible situated in an oven 21 and melted therein, the molten material formed is allowed continuously to pass through an opening in the bottom of the crucible in drop form, the drops are cooled to allow them to solidify in spheroidal form, and the spheroidal drops are ground (e.g. in mill 29) to a glassy powder. The glassy powder may subsequently be pelletized and subjected to X-ray Fluorescence analysis, thereby facilitating indirect analysis of the cement flour, which is itself difficult to analyse by the above X-ray method. Cement flour from hopper 12 and flux from hopper 14 are passed by vibro-conveyers 13, 15 to conveyer belt 11, the amounts of cement flour and flux delivered being controlled in response to signals actuated by scale 10, and conveyed on belt 11 to mixing and blending means 18. From 18 the mixture is passed via conveyer 20 to crucible 22 (not designated on Fig. 1), which is disposed in muffle furnace 21. Drops pass from the crucible through an opening in its bottom, and fall on to a cooled shoot 27 to cause solidification. The solidified drops are then passed by conveyer 28 to mill grinder 29, where the powder is formed. The powder is subsequently passed to a conventional X-ray Fluorescence analyser 31.