baber/WOPTO huggingface dataset:
Patent GB-450044-A (GB)
Title: A process for the preparation of coal by flotation
IPC: B03D1/06
Filed: 1935-05-22
Abstract: Coal is separated into its reactive and inert constituents by disintegrating the coal to a degree sufficient to release the two types of constituents, forming the disintegrated coal into a slime with water and a soluble oxidizing agent such as nitric acid, sulphuric acid, hydrogen peroxide, or potassium permanganate, and then floating off the inert constituents by the addition of a p frothing agent such as phenol, aniline, or alcohol.  The reactive constituents are subsequently floated with the aid of a known coal collector such as coal tar oil.  The action of the oxidizing agent in temporarily inhibiting the flotation of the reactive constituents may be reinforced by the addition of an aliphatic or aromatic hydrocarbon compounds having several terminal groups, such as COOH, NH2CO, or OH, possessing an affinity for water, e.g. hydroquinone, or by the addition of humic acid, lignin sulpho acid, or their derivatives, e.g. cellulose sulphite lye. To release the reactive and inert constituents, the former comprising the humins and bitumens, it is usually necessary to grind the coal to a greater extent than that necessary to free the petrographic constituents, viz. anthracite, dull coal, and fibrous coal.  The separation of a pure dull coal into reactive and inert constituents is described.
Patent GB-1220326-A (GB)
Title: Bucket barrel for reclaiming stock piles
IPC: B65G65/08
Filed: 1969-03-21
Abstract: 1,220,326. Barrel reclaimers. EISENWERK WESERHUTTE A.G. 21 March, 1969 [21 March, 1968], No. 15018/69. Heading E1F. [Also in Division B8] A barrel reclaimer has a plurality of buckets 5 disposed around the peripheral wall of barrel 3a, an inner tube 3b concentric with barrel 3a, and a plurality of inclined passages 6 extending between barrel 3a and tube 3b for the passage of reclaimed material. The buckets may be arranged in annular rows around the barrel, with the inner rows having a greater number of buckets than the outer rows. Plough-shares may be provided on one or both sides of one or more buckets to assist in reclaiming material positioned between the rows of buckets. The barrel may be rotatable in both directions with the buckets having openings in both directions and optionally being pivotally mounted or having a flexible wall-e.g. a chain mat or a rubber mat-to divide the bucket into two chambers.
Patent GB-544445-A (GB)
Title: Improvements in gripping tools
IPC: B25B7/12
Filed: 1940-10-09
Abstract: 544,445. Riveting pliers. GENERAL AIRCRAFT, Ltd., and WOOLNOUGH, F. E. Oct. 9, 1940, No. 15080. [Class 61 (ii)] Riveting pliers with additional means for adjusting the gap between the jaw points comprises a pair of spaced frame members 12 carried by one of the grips 7 and a pair of jaw members 8, 9 pivoted at 15, 16 between the spaced members 12 and having their rear ends connected by links 21, 29 to transverse pins 22, 28 having threaded apertures engaged by a right and left screw 24, 26 held in a pivot 25 and rotatable by a wrench 37 to move the pins closer together or farther apart and vary the space between the jaws. Rollers on the transverse pins are guided in slots 33 in spaced discs 34 connected together to rotate as one by means of bolts 35 also passing through discs 11 rigid with the other grip 6.
Patent GB-441441-A (GB)
Title: Improvements in and relating to the production of foam such as is used for fire extinguishing purposes
IPC: B01F5/04
Filed: 1935-05-23
Abstract: 441,441. Making foam. PYRENE CO., Ltd., Great West Road, Brentford, Middlesex. May 23, 1935, No. 15092. Convention date, June 23, 1934. [Class 47 (ii)] In apparatus for making foam of the type in which a jet of foam - forming liquid under pressure draws inthe necessary air for foam formation, means is provided for imparting a rotary motion to the jet as it is discharged into a conduit in which it mixes with the induced air. As shown, a water pipe a terminates in a nozzle b within which twisted blades c are arranged. The rotary jet of water, to which foaming agent has been added previously, expands in the conduit i and the necessary air is drawn in at openings k arranged adjacent the nozzle at the point where the pressure is lowest. In a modification, water alone is forced through the nozzle b, and draws in the necessary foaming agent in addition to the air. Truncated conical baffles are arranged in the conduit i to assist in mixing the liquid and air. In another modification, Fig. 3, the conduit i is carried by struts p from a sleeve n which is screwed on to the pipe a and comprises a subsidiary nozzle d<1>. The latter co-operates with the main nozzle b<1> to form a suction chamber e, into which foaming agent is drawn from the pipe f. Adjustment of the sleeve on the pipe a controls the supply of foaming agent. Spaces k are provided in the struts p for the entrance of air, and the struts have projecting flanges to prevent accidental closing of the spaces k. Mixing baffles l<1> provided in the conduit i are inwardly inclined and serrated. The pipe f is arranged to be quickly detachable from the source of foaming agent. The twisted blades c may be replaced by spiral grooves or ridges or screw-like members. Specification 272,993, [Class 47 (ii)], is referred to.
Patent GB-1260645-A (GB)
Title: Improvements in or relating to anodes
IPC: C25B11/10
Filed: 1970-03-31
Abstract: 1,260,645. Coated electrodes. PPG INDUSTRIES Inc. 31 March, 1970 [28 March, 1969], No. 15113/70. Heading B2E. [Also in Divisions C1 and C7] An anode, for electrolysis of an aqueous alkali metal chloride solution to produce chlorine, hypochlorite and/or chlorate in a diaphragm or mercury cathode cell, or of a fused salt, e.g. LiCl to produce Li metal and CP 2  gas, comprises a conductive base, e.g. of Ti having an anodically resistant coating comprising an electroconductive oxy-compound including a Pt group metal (Ru, Rh, Pd, Os, Ir, Pt), and an alkaline earth metal (Ca, Sr, Ba, Mg) or a rare earth metal (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu), e.g. calcium or strontium ruthenate, ruthenite, rhodate, rhodite, palladate, osmate, iridate, platinate or platinite. The coating is produced by applying, e.g. brushing, spraying or dipping, a mixture containing thermally decomposable organic and/or inorganic compounds, such as resinates, formates, acetates, oxalates, carbonyls, tricarbonyl or nitroso chlorides, nitrohydroxides, chlorides, nitrates, to the base and heating, e.g. to 300-800‹C in an atmosphere containing O 2 , to form the oxy-compound. Examples are specified of solutions of Ru resinate and Ca, Sr or Mg resinate, in an organic solvent such as oil of turpentine, xylene or toluene; or of RuCl 3  and Ca or Sr formate in water.
Patent GB-1528516-A (GB)
Title: Low-noise-level internal combustion engines
IPC: F16M1/00
Filed: 1976-04-14
Abstract: 1528516 IC engines H LIST 14 April 1976 [18 April 1975] 15166/76 Heading F1B In an I.C. engine having a skeletal support for the crank-shaft main bearings, the cylinder block 1, cylinder head 12 and auxiliaries 13 rigidly secured to the cylinder head are connected together, and a composite crank-case 3 and flywheel casing 3' is connected to these parts by at least one vibrationabsorbing mounting. The mounting comprises a resilient and flexible element 2 bonded to flanges 19, 20 which are bolted to the cylinder block 1 and crank-case 3 respectively. The element 2 may be continuous so as to serve also as an oil seal or may comprise spaced blocks, in which case a separate resilient oil seal is used. The flexural movement of the cylinder block 1 and consequently of the crank-shaft 9 is accommodated by a flexible coupling 8 between the flywheel 6 and the gear-box input shaft 7 and by a resilient sealing member 11 fitted between the cylinder block and an opening in the crank-case 3. Excessive movement may be prevented by stops or abutments. A sound-proofing cover 5 having a lid 5' is secured to the crank-case 3.
Patent GB-452941-A (GB)
Title: Improvements in or relating to valves
IPC: F01L3/20
Filed: 1935-05-24
Abstract: 452,941. Valves. BUGATTI, J., Molsheim, Bas-Rhin, France. May 24, 1935, No. 15206. Convention date, Feb. 28, 1935. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 28, 1935.] [Class 135] A double-headed valve in which at least one of the heads is elastic has in one form the stem joining the heads so reduced in cross section as to impart sufficient elasticity to enable the heads to seat accurately even if the seats are out of alignment. In another form shown in the Figure one head 11 is formed with a stem provided with a socket 13 to the bottom of which a stem 15 formed on the other head 16 is secured by screwing, pinning or keying. Sufficient clearance is left about the spindle 15, which is preferably of reduced cross section, to permit relative movement of the heads.
Patent GB-551231-A (GB)
Title: Improvements in or relating to wireless aerial coupling circuits
IPC: H03H2/00
Filed: 1941-11-26
Abstract: 551,231. Wireless transmitting and receiving apparatus. FLETCHER, H. Nov. 26, 1941, No. 15222. [Classes 40 (iii) and 40 (v)] An electrical tuning system comprises two pretuned circuits designed so that for a frequency other than their common resonance frequency one of the circuits becomes inductively reactive and the other circuit becomes capacitatively reactive, and means are provided whereby the intercoupling of the two circuits can be varied to balance these reactances of different sign to enable the combined circuits to be brought into resonance at any one of a number of frequencies. Fig. 4 shows the invention applied to coupling an aerial 15 to the output 14 of a transmitter 13. An inductance 17 is tuned by a condenser 18 to parallel resonance at the mid-frequency of the desired tuning range. The aerial 15 is tuned by a coil 16 to series resonance at the same frequency. At any other frequency one of the circuits becomes inductive and the other becomes capacitative according as whether the frequency is above or below the mid-frequency. The adjustable tap 19 enables these opposite reactances to be neutralized to tune the combined circuits to any 'desired frequency in the range. The tap 20 is chosen to match the output to the transmitter. The invention is also applicable to the input coupling of a receiver.
Patent GB-827096-A (GB)
Title: Linear dimension gaging apparatus
IPC: G01B7/14
Filed: 1957-05-14
Abstract: 827,096. Measuring radial play in bearings. SHEFFIELD CORPORATION. May 14, 1957 [May 16, 1956], No. 15258/57. Class 106 (2). Apparatus for gauging radial play in an assembly of relatively rotatable components comprises a gauging device to measure the relative radial movement between the components resulting from successive application of opposed forces while the components are relatively rotated by a power drive. As shown, for measuring radial play in bearings, the bearings are placed on a belt 11, and guided one at a time into a pocket 18 in a transfer plate 20. This then moves forward and carries the bearing along a shoot 24 to the gauging station 25, where the inner race is held between a plate 40 and a clamp 44. The plate 20 then returns to the position shown in Fig. 1 and the outer race is rotated, first by wheel 57 and then by wheel 58, Figs. 9 and 10, the spacing between which is adjustable. The force applied by these wheels 57, 58 to the bearing can be adjusted and is produced by air-operated bellows. A lever 41 is in continual contact with the outer periphery of the bearing and actuates a fluid leakage valve, altering the pressure in a pneumatic system in accordance with the radial play. This change in pressure is amplified and passed to a device which operates electrical contacts to control a sorting mechanism, according to whether the play is above, below, or between predetermined tolerance limits. If above or below these limits, when plate 20 moves forward with the next bearing, the previously gauged bearing is moved on to an open trapdoor 120 and discharged down one of two " reject " shoots. If the play is within the limits, the trap-door 120 does not open and at the next movement the bearing is carried further along the shoot 24 to an " accept " position. Reference has been directed by the Comptroller to Specification 685,864.
Patent GB-1503614-A (GB)
Title: Method of synthesizing 1-(tetrahydro-2-furanyl)-5-fluorouracil
IPC: C07D405/04
Filed: 1975-04-14
Abstract: 1503614 Process for preparing 1-(tetrahydro- 2-furanyl)-5-fluorouracil UNIVERSITY OF UTAH 14 April 1975 [6 May 1974] 15282/75 Heading C2C [Also in Division C3] A novel process for preparing 1-(tetrahydro-2- furanyl)-5-fluorouracil comprises reacting bistrimethylsilyl-5-fluorouracil with 2-halotetrahydrofuran, and, if necessary, removing the trimethyl silyl protecting group. 1 - (Tetrahydro - 2 - furanyl) - 5 - fluorouracil is an antimetabolite active against cancer of the breast and of the gastro-intestinal tract.
Patent GB-116021-A (GB)
Title: Method of and Means for Moulding the Centre Blocks of Magazine Guns.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: B29C33/00
Filed: 1917-10-22
Abstract: 116,021. Jackson, W. J. Mellersh-, (Hall Switch & Signal Co.). Oct. 22, 1917. Cartridge magazines. -Consists in moulding centre blocks for the magazines of machine guns from plastic material, e.g. that known under the Registered Trade Mark "Bakelite," by pressing the material between peripheral blocks 15, 18, 22, 25, 27, inserted between plates 30, 31 arranged within a casing 46. The blocks are formed with projections to form the grooves 9, 12, Fig. 8, in the article, and the plate 30 is furnished with a projection 34, Fig. 3, adapted to co-operate with the block 15 to form the opening 13 and slope 14. The article may be furnished with a metal liner 5, Fig. 7, having a key-way 3, such liner being supported upon a part 36, Fig. 3, of a mandrel 35 between sleeves 44, 45. In operation, the plates 30, 31 with the liner 5 between them are inserted within the casing 46 and, after removing the sleeve 44, the mandrel 35 is passed through the casing, plates 30, 31 and liner 5. The sleeve 44 is replaced and the whole clamped together by washers 42, 43. The blocks 15, 18, 22 are then inserted at the bottom of the casing, and after introducing the requisite quantity of material, the blocks 25, 27 are inserted and forced home in a suitable press, after which the article is allowed to set. After setting, the washer 42 is removed, the mandrel is knocked out, and further pressure is applied to the blocks 25, 27, to force the blocks 15-22 and the moulded article completely from the casing.
Patent GB-553184-A (GB)
Title: Improvements in and relating to composite electrodes for gaseous electric discharge devices
IPC: H01J9/04
Filed: 1941-11-28
Abstract: 553,184. Discharge lamps. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 28, 1941, No. 15339. Convention date, Nov. 30, 1940. [Class 39 (i)] Auxiliary starting electrodes 16 are formed by extensions of the leading-in wires 13, 14 to which the coiled filamentary cathode 15 is clamped by opposed hooks 22. They lie parallel to and in the same plane as the cathode and two such assemblies are mounted one at each end of a lamp envelope which is coated internally with fluorescent material. Specification 533,451 is referred to.
Patent GB-338488-A (GB)
Title: Process for the electrolytic production or separation of tin
IPC: C25C1/14
Filed: 1929-05-16
Abstract: 338,488. Jackson, L. Mellersh-, (Siemens & Halske Akt.-Ges.). May 16, 1929. Tin, depositing.-In the electrolytic deposition of tin from alkali metal stannate or stannite lyes, using soluble anodes, the content of the electrolyte in free alkali, inclusive of that set free by hydrolysis but not including alkali metal carbonate, is kept below 1.5 per cent. By this method thick, coherent, firmly adhering deposits may be obtained. The current density may be 50-1600 amps. per sq. metre. The concentration of tin in the electrolyte may be from 0.05 per cent upwards. For a'tin concentration above 7 per cent the alkali content must be somewhat higher but should not be greater than one-fifth of the tin content.
Patent GB-836499-A (GB)
Title: Improvements in or relating to lightweight concrete and aggregates adapted for use therein
IPC: C04B16/08
Filed: 1958-05-13
Abstract: A cementitious mix contains non-brittle cellular, springy particles of porous material.  Specified components are cement or calcium sulphate, sand, gravel and polystyrene particles.
Patent GB-1171858-A (GB)
Title: Improvements in and relating to Permanent Magnet Rotors.
Inventor: GRATZMULLER JEAN LOUIS
IPC: H02K1/27
Filed: 1967-04-04
Abstract: 1,171,858. Cores for dynamo electric machines. J. L. GRATZMULLER. 4 April, 1967 [4 April, 1966], No. 15367/67. Heading H2A. A permanently magnetized rotor for a dynamo electric machine comprises two coaxial pole plates 2, 4 having peripheral poles 18, 18<SP>1</SP>; 20, 20<SP>1</SP>, which are assembled together with an intermediate non-magnetic spacer ring 10 to form a chamber which is filled by a plurality of permanent magnet bars 22 disposed side-byside with their axial ends touching the pole plates. The magnets are of sintered Alnico or ferrite material and can be of circular or polygonal cross-section. The magnets can be stuck to the pole plates with an epoxy resin adhesive and the whole assembly encapsulated. A plurality of pole plates may be used with magnets housed between each pair, Figs. 3-6 (not shown) and preferably the number of pole plates is odd so that the polarity at the ends of the machine is the same. A shaft can be attached to the outer end of one pole plate or a through shaft may be provided.
Patent GB-481180-A (GB)
Title: An improved device for feeding material in strip form to a conveyor, in which the material is stretched
IPC: B65H23/028
Filed: 1936-06-03
Abstract: 481,180. Finishing fabrics. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. June 3, 1936, No. 15524. Void. Convention date, June 3, 1935. [Class 42 (i)] [Also in Group XVI] Tentering.-A conveyer device for conveying and stretching transversely a web 3 of material comprises a pair of endless chains 1, 2 provided with clamps 8, 9 respectively, the chains passing around guides 13, 14 arranged on right and left-hand screw-threaded shafts 11, 12. The shafts 11, 12 are arranged to be rotated by electric motors 6, 7 controlled by feelers 4, 5 engaging the sides of the web 3. If the web deviates to one side, the contacts actuate the motors to move the guides and conveyer chains correspondingly. A contact 10 normally resting on the web is adapted to break the circuits of the motors when the end of the web has passed this contact, or in the event of a break in the web.
Patent GB-1305929-A (GB)
IPC: B41B17/10
Filed: 1970-04-01
Abstract: 1305929 Light Guides INTERNATIONAL PHOTON CORP 1 April 1970 [21 May 1969] 15547/70 Heading G2J [Also in Division B6]  A plurality of flash lamps 515, Fig. 21 and 22, for transmitting light to the character matrix drum 20 of a photographic type-composing machine (see Division B6) are mounted in two banks on brackets 532, 534 on the machine frame 26. Each lamp is connected by a slotted extension 530 to a light channel comprising a flexible light pipe portion 514 coupled by a sleeve 516, Fig 24, to a rigid portion 512. The portions 512 are secured to a holder 502, projections of the portions 512 engaging grooves in the holder. The holder is movable by means of a stepping into three closely spaced apart positions circumferentially of the drum, and is moved into a successive position on each rotation of the drum. Each lamp comprises a flash portion 526 and trigger circuitary 528. In another form, Figs. 34 and 35 (not shown), the lamps are arranged in four rows, each lamp is associated with an optical condenser, and the light channels are stationary. In another form, the channels are movable between two positions. In another form, Fig. 43, the lamps are replaced by two lasers 700, 702, from which the light passes through a polarizer 704 to a deflector 706 including a plurality of electro-optic crystals 708, and thence to an eight-level channel input fall 710 and to a plurality of stationary light pipes 712. In the forms wherein the channels are stationary, two adjacent channels can be activated simultaneously, as by activation of both lasers. The flash selection and timing is controlled by a computer.
Patent GB-696875-A (GB)
Title: Improvements in or relating to container cap remover
Inventor: WILLIAMS RAYMOND H
IPC: B67B7/16
Filed: 1952-06-20
Abstract: 696,875. Bottle &c. openers. WHITE CAP CO. June 20, 1952, No. 15580/52. Classes 125(ii) and 125(iii) A container cap opener, for use with vacuum closures 10 having a cylindrical wall 11, and a flared skirt 12 surrounding a gasket 14, comprises a ring 16 surrounding the wall 11 and resting on the skirt 12 and an integral lifting hook 18 embracing from 40 degrees to 50 degrees of arc, a handle part 21 being formed on the ring at the same part as the hook 18.
Patent GB-595740-A (GB)
Title: Improvements in the depth control of tractor-carried agricultural implements
IPC: A01B63/114
Filed: 1945-06-19
Abstract: 595,740. Tractor-carried agricultural implements. ABBEY, A. (Aktiebolaget Overums Bruk.). June 19, 1945, No. 15646. [Class 6 (i)] [Also in Group XXIX] A plough frame is pivotally mounted on a tractor by means of parallel links 4 and 7. The link 4 is connected by means of links 10 and 11 to a fluid-actuated piston 8 controlled by a valve 12 operated by a lever 15 the position of which is varied by a cam 18. The lever 15 is pivotally connected to a rod 17 connected to a rocker 20. A skid 21, mounted on a lever 22 trails on the ground under the pressure of spring 32 which operates on rod 17 and the rocker 20, the levers 22, 23 being connected to the rocker by means of a sleeve 25 and rods 28, 29. When the cam is turned in an anti-clockwise direction the valve 12 is moved to the right and the cylinder 8 is put in communication with a pressure conduit 13 so that the plough frame is raised. During this operation the lever 22, 23 automatically adapts itself to the decreasing working depth and the pivot point 16 and the valve 12 is moved to the left until the cylinder is shut off, with the result that movement ceases. By turning the cam 18 in the opposite direction the valve 12 is moved to the left whereby the cylinder is put in communication with a return conduit 14 causing the plough frame to be lowered. A handle 38 varies the relative positions of the levers 22, 23 and varies the depth of the tool for a given setting of the cam 18 by moving the pivot point 16 and so altering the position of balance of valve 12 without moving the cam 18.