baber/WOPTO huggingface dataset:
Patent GB-201044-A (GB)
Title: Improvements in electrical plug switches
IPC: H01H19/14
Filed: 1922-07-31
Abstract: 201,044. Winter, G., and Winter, R., (trading as Northern Electrical Engineering Co.). July 31, 1922. Addition to 179,319. Plug couplings combined with electric switches. -Means for securing a quick break is incorporated in the plug of the plug switch described in the parent Specification, and comprises a cover mounted with limited angular movement on the plug. As shown, the cover 1, having a flared end 3, carries a metal plate 4, slotted at 5, 6 and having a hole 7. The plug 9 carries pins 19, 20 engaging the slots 5, 6 and is loosely secured to the cover 1 by a screw 22. A helical spring 21, held in tension by engaging at one end the hole 7 and at the other a hole 11 in the plug 9, effects the quick break. When the cover 1 is turned, the edges of slots 5, 6 engage the pins 19, 20, turn the plug and socket and put the spring 21 under increased tension. This releases the contact blade in the socket from frictional engagement with their co-operating contacts and the spring 21 completes the action.
Patent GB-740497-A (GB)
Title: Improvements in primary electric batteries
IPC: H01M6/30
Filed: 1953-07-28
Abstract: 740,497. Batteries. LUCAS, O. D. July 28, 1954 [July 28, 1953; Oct. 7, 1953], Nos. 20900/53 and 27509/53. Class 53. An inert primary cell comprises electrodes of magnesium and copper and an electrolyte of cupric chloride which may be in the solid state, fresh or sea water being added when the cell is to be activated for use, or alternatively a solution of cupric chloride may be contained in a vessel communicating with the cell. When present in the solid state the cupric chloride may be mixed with hydrochloric acid to form a paste which is applied to copper gauze plates forming positive electrodes which are interleaved with the magnesium negative plates. The plates may be retained in grooves in the container or they may be separated by layers of absorbent paper or by a winding of string. Several cells may be enclosed in a container and spaced apart by partitions having spaces round them for the entrance of water. The container may be enclosed in an evacuated receptacle having an inlet for water.
Patent GB-908739-A (GB)
Title: Apparatus for continuously weighing and bagging articles
IPC: G01G13/00
Filed: 1960-06-15
Abstract: 908,739. Automatic feed weighers. LAKE, C. A. June 15, 1960, No. 20988/60. Class 143. Apparatus for continuously bagging and weighing articles comprises a chamber adapted to receive a supply of the articles, a pair of outlets in the chamber which are alternately closed by a closure member, a spring loaded hinged flap, to interrupt the discharge of articles through one outlet while permitting discharge of the articles through the other outlet, a pair of weighing machines each adapted to support a bag to be filled with its mouth adjacent one of the outlets and means, a latch, actuated by each of the machines when the latter operates under a predetermined load for effecting movement of the closure member by releasing a catch thereon to cause it to move and close the outlet through which the articles have just been discharged to the loaded bag and uncover the other outlet to enable the articles to be discharged to a bag supported by the other machine and to engage the catch with the latch controlled by the other weighing machine. A pair of weighing machines 1 comprises a platform 2 for weights 3 and a load platform 4 which has an upright frame 6 carrying a lateral frame 7 for a bag 8 in alignment with one outlet 9 in the chamber 10 receiving a supply of articles. A shaft 13 in the chamber pivotally mounts a flap 12 on one end of which is a catch 14 which engages one of two latches 15 pivotally mounted on the wall of the chamber. The other end of the shaft carries a link 17 and a link 18 freely rotating thereon, a spring 16 connects the free ends of the links. The link 18 swings downwardly and upwardly between two stops 19 and the link 17 pivots with the shaft 13 between stops 17a. The links initially abut stops 17a and 19 over deadcentre position with the spring 16 stretched. At the correct weight the platform 2 guides and pulls a cable 20 connected to the latch 15 so releasing the catch 14. The shaft pivots under the action of the spring and rotates the flap to close one outlet and open the other. The links 17 and 18 are reset manually to abut the other pair of stops and with the spring 16 stretched the catch 14 engages the other latch 15 and the bag below the other outlet 9 fills. Specification 908,738 is referred to.
Patent GB-1261352-A (GB)
Title: Improvements in and relating to friction clutches
Inventor: BAKER PETER FREDERICK
IPC: F16D23/14
Filed: 1968-05-03
Abstract: 1,261,352. Friction clutches. QUINTON HAZELL (HOLDINGS) Ltd. 23 April, 1969 [3 May, 1968], No. 20999/68. Heading F2C In a friction clutch for a motor vehicle wherein a driven disc 26 is clamped between a flywheel 20 and a presser plate 24 by a radially slotted diaphragm spring 28, chatter between the inner ends of the spring tongues 34 and a disengaging thrust ring 30 is prevented by bending some of the tongues 34 out of the plane of the diaphragm spring so that the spring tongues resiliently engage both the thrust ring 30 and a retaining ring 50. As shown every third tongue 34B is bent out of the plane of the spring to resiliently engage the retaining ring 50 and thus hold the other tongues 34A in engagement with the thrust ring 30. Projections 80 on the thrust ring 30 engage in spaces between the spring tongues 34 to prevent relative rotation between the diaphragm spring 28 and thrust ring 30. The thrust ring 30 may be made of metal or plastics material. A sleeve 58 of the retaining ring 50 passes through the diaphragm spring 28 and is secured to the thrust ring 30. In Figs. 6-8 (not shown) the spring tongues 34 are twisted so that opposite sides of each tongue engages the thrust ring 30 and retaining ring 50. In Fig. 9 (not shown) the spring tongues 34 have arcuate inner ends so that the outer edges of each tongue engages the retaining ring 50 whilst a central portion of each tongue engages the thrust ring 30. In Fig. 10 (not shown) the thrust ring 30 and retaining ring 50 have axial projections engaging the spring tongues 34.
Patent GB-1005629-A (GB)
Title: Electric heating elements for carburizing atmospheres
Inventor: BEGGS DONALD
IPC: F27D11/02
Filed: 1964-05-21
Abstract: 1,005,629. Electric furnaces. BRITISH FURNACES Ltd. May 21, 1964 [Oct. 21, 1963], No. 21012/64. Heading H5H. An electric carburizing furnace for case hardening articles on a conveyer 25 has resistive elements 32 of tubular form, the insides of which are subjected to decarburizing conditions. This may be by circulating a fluid through the tubes, e.g. steam, or air with or without the products of combustion of natural gas, preferably at furnace temperature, or the tubes may be packed with a solid such as iron oxide. The alternative use of plate type elements is mentioned.
Patent GB-315273-A (GB)
Title: Improvements in or relating to lead-sheathed electric cables
IPC: H01B7/20
Filed: 1929-07-09
Abstract: 315,273. Siemens Schuckertwerke Akt.-Ges. July 10, 1928, [Convention date]. Armouring cables. - In order to prevent the formation of hollow spaces in the insulation of heavy current cables of the type having a seamless lead sheath surrounded by a metal covering, hollow spaces are formed by folds in the lead sheath, the folds being adapted to give way on heating up the cable so that the sheath is not pressed beyond the elastic limit. In the construction shown in Fig. 1, a conductor 1 is surrounded by insulation 2, a lead sheath 3 and a metal covering 4. The sheath 3 is formed with a fold 5. In the modification shown in Fig. 2, a wire 10 is inserted between the lead sheath 8 and the covering 9, thus forming a fold.
Patent GB-1470483-A (GB)
Title: Soluble trisazo dyestuffs and their prod and use
IPC: C09B35/46
Filed: 1975-05-19
Abstract: 1470483 Soluble trisazo dyestuffs CASSELLA FARBWERKE MAINKUR AG 19 May 1975 [20 May 1974] 21190/75 Heading C4P Novel dyestuffs of the formula wherein Z has one of the formulµ X is -N(R)-, -O- or -S-; R is H, C 1-4  alkyl, phenyl or benzyl; A is a diazo component radical; B is a coupling component radical; n is 1 or 2; and the nuclei I and II may carry further substituents, are prepared by tetrazotizing H 2 N-Z-NH 2 , acid-coupling with a 1- amino-8-hydroxy-naphthalene sulphonic acid to form a monoazo diazo compound, coupling this with a diazotized amine A-NH 2  and coupling the resulting disazo diazo compound with B-H. Alternatively B-H may be coupled before diazotized A-NH 2 . The dyestuffs are a mixture containing both values of Z, attachment to the fused-on benzene ring being in the 5- or 6- position as indicated. They are used for dyeing or printing natural or synthetic fibre materials containing OH or N, particularly cotton, regenerated cellulose, wool, wool-cotton union, silk, polyamide, leather and paper, in blue, green and black.
Patent GB-313351-A (GB)
Title: A stirring or whipping implement for stirring, kneading and mixing machines
IPC: A47J43/044
Filed: 1928-07-21
Abstract: 313,351. Aeschbach Akt.-Ges., F. June 27, 1928, [Convention date]. Stationary mixers with stirrers having complex motions.- In a stirring, kneading, or mixing machine of the kind in which the stirrer is given a planetary motion, the stirrer is of a shape other than a figure of revolution and preferably consists of two stirrers of ordinary globular form adjustably mounted in a single holder on the shaft. As shown, the beaters 16, Fig. 2, have their stems 17 clamped between side members 19, 20, Fig. 7, and a central member 18 mounted on the main stem, which may be mounted on either of the planetary shafts 3, 4, or on the central shaft 2. Fig. 4 shows in plan a modified form of stirrer, the envelope of which is a flattened figure of revolution.
Patent GB-1503417-A (GB)
Title: Columns for foundation making machines
IPC: E21B19/084
Filed: 1976-05-21
Abstract: 1503417 Excavators B CASAGRANDE 21 May 1976 [4 June 1975] 21252/76 Heading B8H A telescopic column for a foundation making machine comprises a movable outer column 13, a movable inner column 11 guidable by the outer column, an axially immovable guide canoe 16 for guiding the outer column, a drive mechanism 19 having two drive pulleys 24, 25 rotated in unison, having a diameter ratio to one another of one to two and respectively driving a chain 26 secured to the two ends of the outer movable column 13 and a chain 27 secured to the lower part of the inner movable column 11 and to the upper part of the axially immovable guide canoe 16 after passing over a sheave 14 solidly fixed to the upper part of the outer movable column 13, wherein a cable 28 connects the upper part of the inner movable column 11 to the lower part of the axially immovable guide canoe 16, passing over a sheave 15 solidly fixed to the lower part of the outer movable column 13. The arrangement is such that the inner movable column 11 moves at twice the speed of the outer movable column 13.
Patent GB-1393335-A (GB)
Title: Processing colour photographic silver halide materials
IPC: G03C7/305
Filed: 1973-05-04
Abstract: 1393335 Bleaching colour photographic silver halide materials FUJI PHOTO FILM CO Ltd 4 May 1973 [4 May 1972] 21287/73 Heading G2C An exposed photographic material having at least one silver halide emulsion layer containing a diffusion resistant two-equivalent open-chain ketomethylene type yellow dye-forming coupler is colour developed, bleached in a bleach solution containing one or more of an iron (III) aminopolycarboxylic acid complex salt, a cobalt (III) complex salt, an iron (III) oxydicarboxylic acid complex salt and an iron (III) polycarboxylic acid complex salt, and fixed in separate baths. The two-equivalent yellow coupler may have the Formula:- where R is optionally substituted alkyl, optionally substituted aryl or optionally substituted heterocyclyl; Y is CN or optionally substituted carbamyl; and X is a splitting-off group and the acid from which X is derived may have a pKa of 2 to 11 (in water at 25‹C). A yellow dye-forming fourequivalent coupler and cyan and magenta couplers may be present in the material. The bleach solution may contain an iron (III) complex salt or nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, ethyleneglycol bis (aminoethylether) tetraacetic acid, diaminopropanol tetraacetic acid, N-hydroxyethylethylenediaminetriacetic acid, ethyliminodipropionic acid or cyclohexanediamine tetraacetic acid or an iron (III) complex salt of malonic acid, ethylmalonic acid, tartaric acid, malic acid .or diglycolic acid, or tetraaminecarbonate cobalt (III) nitrate, sodium cobalt nitrite or tetraamine cobalt (III) bromide. Good density dye images are produced and regeneration of the used bleach solution and removal of silver from the separate fix solution is easier than a bleach-fix solution is used. The bleach solution causes little water-pollution unlike ferricyanide and bichromate bleach solutions.
Patent GB-187073-A (GB)
Title: Improvements in sighting devices for shoulder and other fire-arms
IPC: F41G11/00
Filed: 1921-08-11
Abstract: 187,073. Gilbert, R., (Representative of Russell, T. G.). Aug. 11, 1921. Sighting - accessories. - A screen for obstructing the vision of the non-sighting eye is at. tached to a fire-arm forward of the backsight. The screen may consist of a. steel flap D hinged to a band A encircling the barre and stock. Specifications 53/84 and 1394/95 are. referred to.
Patent GB-237127-A (GB)
Title: Improvements in trolleys for refreshment service
IPC: B62B5/04
Filed: 1924-09-10
Abstract: 237,127. Grreenway, H. H. Sept. 10, 1924. Springs, arrangement of; wheels and axles, arrangement of.-The frame of a trolly for carrying refreshments consists of lengths of tubing 1, 2, 3, 4 brazed together. The wheels 6 are mounted on spring plungers 13, Fig. 2, the tubular casings 8 of which may be attached to the frame 1 or may form part of it.
Patent GB-315366-A (GB)
Title: Improved method of operating internal combustion turbines
IPC: F02C3/26
Filed: 1929-07-11
Abstract: 315,366. Holzwarth, H. July 11, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 13, 1929]. Working-fluid supply. - In operating a gas turbine with fuels that ignite with difficulty, the readily ignitable constituents of the fuel charge, such as oil gases, are caused to separate out in the combustion chamber, and so facilitate ignition. Coal dust, lignite, tars and other distillation residues are mentioned as possible-fuels. The separation of the readily ignitable constituents is effected by keeping the combustion chambers at a sufficiently high temperature by advancing the ignition or by delaying the opening of the discharge valve. Fig. 1 shows a lay-out suitable for use with coal dust. The combustion chambers 1 have admission valves 5, shown in section in Fig. 10, and discharge valves 13 both actuated by oil under pressure from a receptacle 27. The supply of actuating oil is controlled by a distributor 26 on a shaft 25 which' is rotated through gearing by an electric motor. The distributor may be adjusted to alter the time at which the discharge valve 13 opens. The magnetos 52 which supply the sparking plugs 12 are also driven off the shaft 25, and the intermediate gearing may be adjusted by a hand wheel 58 in order to advance the ignition when required. The electric motor driving the shaft 25 may also drive pumps which supply liquid fuel through pipes 11. The valve head 9, Fig. 10, in the admission valve is opened automatically by oil under pressure, and controls the flow of combustion air from the pipe 6 and of coal dust from a connection 61. Damage due to back-firing is prevented by forming the valve body with nozzle-shaped air passages 64, and by providing a non-return valve 65 in the coal dust pipe. This valve is kept clean by air blown in at 82.
Patent GB-800863-A (GB)
Title: Improvements relating to combustion-operated percussion apparatus
IPC: B25D9/10
Filed: 1955-07-22
Abstract: 800,863. Percussive tools. DORNFELD R. and DORNFELD, E. [trading as DELMAGMASCHINENFABRIK R. DORNFELD. July 22, 1955 [Aug. 11, 1954], No. 21360/55. Class 124. A combustion operated percussive tool is provided with means for preventing the return stroke of the piston when pressure on the tool is released, the means exerting a radial pressure on the piston when the latter is below the lower working dead centre. As shown, a free piston 24 strikes an anvil 25 and is returned by gas pressure, the gas entering the space below the piston through valves 29. The anvil 25 is of such length that when the tool is raised from the work the piston may descent below its lower working dead centre and close the valves 29, the tappets of which are urged into contact with the piston with sufficient force to maintain the piston in its low position. The gas used to return the piston may be the working gas and its supply to the combustion chamber may be controlled by the valves 31. In a modification, Fig. 5 (not shown) the valves 29 may be replaced by a ring of resilient material having a hollow annular ring and inwardly turned flanges on the side facing the piston. In a further modification the piston may be returned by a spring in which case it is held below the lower dead centre by a series of balls or rollers pressed into contact with an extension of the piston by a cone-shaped sleeve, Fig. 1 (not shown.) Lubrication of the machine may be achieved by an oil pump the piston of which is operated by the working piston only when the latter passes below the lower working dead centre, Figs, 3 and 4 (not shown).
Patent GB-881883-A (GB)
Title: Improvements in or relating to production of uranium oxide bodies
Inventor: LLOYD HENRY
IPC: G21C3/62
Filed: 1959-06-22
Abstract: A non-stoichiometric uranium dioxide body having an oxygen/uranium atomic ratio of at least 2,3 is prepared by cold compacting a uranium dioxide powder of oxygen/uranium ratio less than 2,3 (which may be stoichiometric or non-stoichiometric) and an organic binding agent and then heating the mixture at 200 DEG -250 DEG C. in an oxidizing atmosphere until the oxygen/uranium ratio has been raised to 2,3. The body so formed may be sintered in an inert atmosphere such as argon at 1300 DEG -1500 DEG C. to yield dense non-stoichiometric uranium dioxide bodies which may subsequently be heated at above 1000 DEG  C., in hydrogen for example, to yield dense stoichiometric uranium dioxide.  Alternatively the initial non-stoichiometric bodies may be sintered in hydrogen at at least 1500 DEG  C. to form stoichiometric dense oxide bodies. Suitable binding agents are water soluble polymers such as polyethylene glycol, polyacrylic acid or polyvinyl alcohol, polymers soluble in organic liquids such as polyvinyl esters and polymethacrylate esters and insoluble materials such as paraffin wax.  A plasticizer such as glycerol or dibutylphthalate may be included.  The binders may be employed as a dispersion or as a solution in an organic solvent such as toluene, acetone, methyl ethyl ketone, trichloroethylene and carbon tetrachloride, or mixtures thereof.  Binders are employed in amounts of at least 1 % and generally from 1 1/2 -6% by weight of the oxide. According to Examples (I) a uranium dioxide powder of oxygen/uranium ratio of 2,04 was ball-milled to increase the ratio to 2,055 and a solution of polybutyl methacrylate with a dibutylphthalate plasticizer in toluene was added together with methyl ethyl ketone to form a crumbly mixture which was sieved, dried and compacted under a pressure of 30 tons per square inch. The compacts of bulk density of about 6,4 were heated in air at 245 DEG  C., whereby the oxygen-uranium ratio was increased to 2,33; they were then sintered in argon at a maximum temperature of 1450 DEG  C.  The final bulk density was about 10,8 and the oxygen/uranium ratio was from 2,15-2,20.  (II) The sintered compacts of Example I were cooled in argon to 1200 DEG  C. and then heated at that temperature in a hydrogen/nitrogen mixture whereby their bulk densities were reduced to about 10,5 and the oxygen/uranium ratio to 2,00.  (III) Compacts as initially formed in (I) above were heated in air at a maximum temperature of 250 DEG  C. until the oxygen uranium ratio was 2,33. The compacts were then sintered in a hydrogen/nitrogen atmosphere at a temperature rising to 1600 DEG  C. whereby the bulk density was about 10,5 and the oxygen/uranium ratio was from 2,00 to 2,01. Specification 801,381 is referred to.
Patent GB-500203-A (GB)
Title: Improvements in the manufacture of lined metal pipes
IPC: F16L58/06
Filed: 1937-08-03
Abstract: 500,203. Composite pipes. TURNER & NEWALL, Ltd., and TURNER, L. A. Aug. 3, 1937, No. 21414. [Class 99 (ii)] [Also in Groups V and XXII] A pipe line is composed of metal pipes or tubes each tightly lined by a seamless asbestos-cement tube. Asbestoscement is defined as a plaster-mix of asbestos and cement or other hydraulic binding agent. In lining a thin steel tube with asbestos-cement an asbestos-cement tube 1 together with the mandrel 2 on which it is formed may be inserted, before it is set, into a metal tube 3 fined with a flexible keying material 11 such as bitumen and preferably provided with bevelled ends and the whole rotated by a pair of rollers 4, 5 rotating in the same direction so that the lining tube expands into contact with the metal tube. The mandrel rolls on the lining and consolidates it. The mandrel is then withdrawn and replaced by a collapsable mandrel so as to maintain the tubes in contact during setting of the lining. The outside of the tube may also be coated with bitumen and a covering of asbestos-cement 8, Figs. 6 and 7, applied and the whole may be dipped in a bituminous solution, such as a solution of natural bitumen, mineral oil and naphtha. In a modification the asbestos - cement tube 1 is removed from its forming mandrels and placed on a collapsable mandrel and is then inserted in the metal tube 3 which is drawn down through a die 7 over the lining tube. In order to prevent liquid penetrating between the metal and cement tubes when the composite tube is assembled in a pipe line the ends may be sealed by layers of bitumen or by a V-shaped rubber ring 9, Fig. 6, or U-shaped rubber ring, 10, Fig. 7. According to the Provisional Specification the collapsable mandrel used in the first mentioned process may be replaced by a rubber tube expanded by hydraulic pressure or the ends of the composite tube are sealed and compressed air supplied. The lining may also he consolidated by internal rotary pressure rollers carried ori extensible arms and rotated round the tube axis. The asbestos-cement tube may also be lap jointed.
Patent GB-1261314-A (GB)
Title: A method of powder metallurgically producing metal workpieces
Inventor: HOLVE KAREN
IPC: C22C32/00
Filed: 1970-05-04
Abstract: 1,261,314. Sintered Al or Al based alloys. KARL SCHMIDT G. m. b. H. May 4, 1970 [May 14, 1969], No.21428/70. Heading C7D. Al or Al based alloy powder is mixed with < 1À5% volume of polyamide 11 and for calcium stearate prior to pressing and sintering. The polyamide and stearate is preferably < 50 micron size and powder mixtures containing in volume % 96À25 Al, 3 Cu, 0À5 Al 2 O 3 , 0À25 polyamide 11, or 95À5 Al, 3 Cu, 0À5 Al 2 O 3 , 1 calcium stearate are pressed and sintered at 600‹C.