baber/WOPTO huggingface dataset:
Patent GB-244155-A (GB)
Title: Improvements in and relating to electric welding systems
IPC: B23K11/04
Filed: 1924-09-08
Abstract: 244,155. British Thomson-Houston Co., Ltd., (General Electric Co.). Sept. 8, 1924. Welding.-In electric flash welding by first holding the parts under light pressure so as to permit arcing or sparking and then applying heavy pressure so as to complete the weld, a rapid periodic engagement and disengagement of the parts is effected during the first operation so as to facilitate arcing or sparking and so to prevent the parts sticking together. The parts 1, 2 to be welded are respectively secured by clamps to platens 5, 7 connected to the secondary terminals of a transformer. The platen 5 is adjustably fixed to the base of the machine and the platen 7 is movably mounted, being provided with rods and stop nuts 14 and separated by springs 13 from a cross-head 12 operated by toggle-links 11 through a hand lever 10. A winding 16, which may be in series with the primary of the transformer, is mounted on the centre leg of a magnetic core 15 secured to the platen 7. The main switch is put in and the parts pushed into contact through the springs 13 by the hand lever. The winding 16 is thus energized and the platen thus drawn towards the cross-head which serves as an armature. Separation of the parts is thus caused and the winding 16 weakened or de-energized so that the platen is returned by the springs. When the parts are sufficiently heated, heavy pressure is applied by the hand lever so as to stop the vibratory action and to complete the weld. A circuit-breaker is provided in the primary circuit of the transformer which is tripped open at the termination of the welding operation by a coil energized from any suitable source, when an adjustable contact 23 on the platen 7 engages a contact 22. In a modification, a laminated bridge 24, Fig. 4, of springy metal is secured to the outer legs of the core of the winding and centrally to the cross-head 12 so as to be vibrated when the alternating current is passed through the winding. The platen 7 may be operated automatically instead of by a hand lever. The electromagnetic means for effecting the vibratory movement of the platen may be replaced by air pressure, cams, &c.
Patent GB-813446-A (GB)
Title: Process for the electrolytic deposition of aluminium
IPC: C25D3/44
Filed: 1955-07-22
Abstract: 813,446. Electrodeposition of aluminium. ZIEGLER, K. July 22, 1955 [July 28, 1954; June 13, 1955], No. 21284/55. Class 41. Aluminium is electrolytically deposited from a homogeneous liquid phase electrolyte protected against the access of air and comprising (1) a compound of the formula AIR(R<SP>1</SP>) 2  in which R is alkyl and R<SP>1</SP> is alkyl, hydrogen, or halogen together with (2) a complex compound formed by said compound and either (a) a compound MeR<SP>1</SP> where Me is an alkali metal and R<SP>1</SP> is alkyl, hydrogen, or halogen, or (b) a quaternary ammonium halide. The liquid phase may be a homogeneous solution in a solvent such as toluene, methyl naphthalene, tetrahydronaphthalene, diphenyl ether, tetrahydrofurane, dioxane, dimethyl aniline, or pyridine which does not decompose the organic aluminium compound. Access of air to the electrolyte is prevented by the use of either a covering layer of paraffin oil or an inert gas, e.g. nitrogen, atmosphere. Electrolysis is effected at bath temperatures of 60‹ to 200‹ C. and adherent deposits may be produced on aluminium or copper, e.g. as wire, cathodes. Decomposition of the aluminium alkyl with anodic evolution of hydrocarbon gases and the need to replace the lost alkyl which occur with anodes of copper, iron, and platinum may be avoided by the use of aluminium anodes. In this way too foundry aluminium may be purified, impurities being retained at the anodes by bagging them.
Patent GB-814827-A (GB)
Title: Improvements in or relating to flexible doors
Inventor: STOTT PHILIP
IPC: E06B3/80
Filed: 1956-07-10
Abstract: 814,827. Doors. MANCUNA ENGINEERING Ltd. Aug. 13, 1957 [July 10, 1956], No. 21288/56. Class 20(3) In a swing door assembly, or door having a panel B of flexible material, such as canvas-reinforced rubber, is characterized in that the area of the panel B subject to contact with angular parts of vehicles passing through the door, or of their contents is covered with closely spaced metal buttons E . The buttons E may have bevelled peripheries or be of part-spherical form and may be arranged inpairs on either side of the door secured to a stud. Each button may have key holes to allow its application to the stud as a nut.
Patent GB-1003255-A (GB)
Title: Improvements in or relating to independent front wheel suspension systems for vehicles
IPC: B60G3/24
Filed: 1962-06-01
Abstract: 1,003,255. Road vehicle suspensions. REGIE NATIONALE DES USINES RENAULT. June 1, 1962 [June 15, 1961], No. 21302/62. Heading B7D. An independent front suspension for a front wheel drive motor vehicle comprises a pair of support arms 5, 7 pivoted at 10 and 11 respectively to a plate member 9 secured by bolts 13 and 15 to the vehicle chassis frame member 12, 14, and at 6 and 8 to the vehicle stub axle support 4. The stub axle 2 is driven by a shaft 16 incorporating universal joints 17 and 18 enclosed in rubber guards. A bracket 21 is provided on the lower link 7 to form the lower support for a vibration damper 19 equipped with a stroke-limiting rubber stop 20. An anti-roll bar 25 is mounted in bearings on the vehicle frame and is secured to the bracket 21. The upper pivot 10 comprises a pivot pin having splines 27 preventing its rotation in the supporting plate 9 and rubber bushes 28 vulcanized to sleeves rigid with the arm 5 and pin, respectively. The lower pivot comprises a pin 30 non-rotatably supported in the plate 9 by splines 31, a rubber bush 32 being vulcanized to sleeves rigid with the pin 30 and arm 7, respectively, the outer sleeve 33 being connected to a torsion bar 35 the other end of which is secured to an adjustable support 38. The supporting plate 9 may comprise an elongate section 9<SP>1</SP> to which are welded brackets 22, 9<SP>3</SP> and 9<SP>5</SP> for supporting the upper end of the vibration damper 19 and providing the supports for the upper and lower pivots, respectively, for the support arms 5 and 7, the brackets 9<SP>3</SP> and 9<SP>5</SP> also having apertured flanges by means of which the support may be attached to the frame member 12, 14 by two upper and two lower bolts 13, 15, respectively. In an alternative arrangement, the mounting plate may comprise a single forged steel element.
Patent GB-1431945-A (GB)
Title: Disinfectant composition incorporating mono-oxycarboxylate salts of bis-biguanidines
IPC: C07C279/26
Filed: 1973-05-04
Abstract: 1431945 Bis-biguanidine mono-oxycarboxylic acid salts W HURKA 4 May 1973 [1 Aug 1972] 21319/73 Heading C2C [Also in Division A5] Bis-guanidine mono-oxycarboxylic acid salts are produced by the reaction of a mono-oxycarboxylic acid having 2 to 4 carbon atoms or a salt of said acid, with a bis-biguanidine having the general formula in which A and A<SP>1</SP> signify a phenyl radical which may be substituted with alkyl, alkoxy or nitro groups or with halogen atoms, R and R<SP>1</SP> signify hydrogen or an alkyl radical or an aralkyl radical and X and X<SP>1</SP> signify a direct bond or a alkylene radical consisting of not more than 3 carbon atoms, the substituents A and A<SP>1</SP>, R and R<SP>1</SP>, as well as X and X<SP>1</SP> in each case being the same or different, and in which m signifies an integer between 2 and 12 inclusive, the polymethylene chain (CH 2 ) m  optionally being interrupted by oxygen atoms and/or aromatic rings, or with a salt of said bis-biguanidine.
Patent GB-1302997-A (GB)
IPC: C07C31/18
Filed: 1971-04-19
Abstract: 1302997 Preparation of xylitol SUDCHEMIE AG 19 April 1971 [9 Feb 1970] 21338/71 Heading C2C Xylitol is made from natural products containing xylose by (a) hydrolysing the products with aqueous acid; (b) evaporating to a viscous syrup, to substantially remove any acetic acid present; (c) diluting with water and adjusting the pH to 6À5-7À5; (d) without isolating, hydrogenating the xylose present under elevated pressure and in the presence of a hydrogenation-catalyst, and (e) recovering the formed xylitol.
Patent GB-1476844-A (GB)
Title: Demodulation of time division multiplex signals
IPC: H04L7/027
Filed: 1975-05-20
Abstract: 1476844 Extracting timing signals GRUNDIG EMV ELEKTRO MECHANISCHE VERSUCHSANSTALT MAX GRUNDIG 20 May 1975 [16 Aug 1974] 21539/75 Heading H4M To obtain a timing waveform, Fig. 1f, for the demodulation of t.d.m. signal, Fig. la, the latter comprises a recognition signal 40, Fig. 1a, in which the relative amplitudes at times corresponding to channels B and C are chosen to ensure that the frequency component f 1 , predominates, a band pass filter (10), Fig. 2 (not shown), gated on by signal 50, Fig. 1d, extracting the component f 1 , which passes via combining stage (12) and emitter follower impedance converter (13) to oscillator circuit (14) of the transistor, Hartley type, operating at the frequency f 1 , synchronizing the latter so that its output waveform, Fig. 1f, is synchronized in rigid phase relationship with the component f 1 , while the former is present, the oscillator waveform continuing smoothly during the periods when an information component 42, Fig. 1a; with channels A, B, C, on minima, odd maxima, even maxima respectively; is present. When the information component is present, band pass filter (11), centred on the frequency f 2  extracts the waveform f 2 . Fig. 1c, which also passes via the combining stage (12) and converter (13) to the oscillator. The gating signal, Fig. 1d, may be transmitted, or developed from recognition component 40 by a flywheel circuit in a phase locked loop. Circuits for the units (13, 14) are disclosed in relation to Fig. 3 (not shown).
Patent GB-1159526-A (GB)
Title: Circuit Protection for the Horizontal Driver Tube in a Television Receiver
IPC: H04N5/63
Filed: 1967-05-09
Abstract: 1,159,526. Protective arrangements. RADIO CORPORATION OF AMERICA. 9 May, 1967 No. 21579/67. Heading H2K. A protection circuit for a particular component of a television receiver includes a thermal switch 28 responsive to excess current in the circuit to the receiver and having a bimetallic element 40 heated by the current flow therethrough such that it flexes to a second stable position to open contacts 42, 44 in said circuit, and the sensitivity of the switch 28 to current through the protected component, e.g. the horizontal output stage valve 50, is increased by having a heating element 52 carrying the valve current thermally associated with the bimetallic element 40. Heating element 52 carries the cathode current, as shown, or may be connected in the anode circuit of valve 50. The switch 28 is reset by a button 48 mechanically coupled to element 40.
Patent GB-1342908-A (GB)
Title: Roller presses
IPC: B30B11/20
Filed: 1971-04-19
Abstract: 1342908 Releasable fastenings SIMON HEESEN NV 19 April 1971 [25 Feb 1970] 21597/71 Headings E2A and E2B [Also in Divisions B4 and B5] In an extrusion press wherein extrusion is effected through the radially directed orifices (not shown) of a rotating die 1, by co-operation with an internal roller or rollers eccentrically mounted on a stationary shaft (not shown) which also carries bearings mounting a rotating column 2, the die 1 is secured for rotation on the column 2 by means of a plurality of spring loaded clamping elements, and means are provided for releasing the elements against the action of the springs to permit replacement of the die 1. The releasing means may comprise a pawl system, mechanical or hydraulic jacks, or a lever system. In the Fig. 1 embodiment, the die 1 is centered on column 2 by a plurality of circumferentially spaced segments 3 which are fixed to the head of column 2 by bolts 12, the heads whereof locate, within recesses in die 1 to transmit the drive from column 2 thereto. The clamping elements comprise segments 4, circumferentially spaced and intermediate segments 3, which act to clamp the die at part cylindrical faces 14 upon being slightly inwardly urged upon engagement, at frusto conical surfaces 15, with the column 2 and which urging is effected by circumferentially spaced rubber sleeve springs 7 which act between the underside of the head of column 2 and an annular plate 6 to which the segments 4 are fixed by bolts 5. The springs 7 are each arranged around a centring pin 16 which, by abutment with the underside of the head of column 2, act to limit the movement of elements 4 when these are upwardly displaced to release the die 1, by six circumferentically spaced plungers 17 which are hydraulically actuated, against return springs 20, and the cylinders 8 whereof are mounted to a plate 9 which is resiliently connected, at springs 28, to the machine frame 10 so that the thrust of cylinders 8 is distributed by the plate 9 between the frame 10 and a column driving pulley 11, and not onto the bearings of column 2. In the Fig. 6 embodiment (not shown), the die is clamped by cleats (26) engaging in a circumferential die groove and which are released when vertical camming pins (29), supported on a ring (32) and passing through the cleats (26) are displaced by jacks (8) mounted on the machine frame at (34) so that the pin cam surfaces (30) radially outwardly displace shafts (31) of the cleats (26) against return springs (7).
Patent GB-761136-A (GB)
Title: Improvements in or relating to contact spring pile-ups for electro-magnetic relays
Inventor: MYATT EDWARD RONALD
IPC: H01H50/58
Filed: 1953-08-05
Abstract: 761,136. Electromagnetic relays. STANDARD TELEPHONES & CABLES, Ltd. Aug. 5, 1953, No. 21600/53. Class 38(5) The moving springs 5 of a contact pile-up are operated by an armature 14 through a toothed card 1 positioned in sector-like slots 7 in the springs. The slots 7 have tongues 8 and the card is inserted through the longer portions of the slots and then rotated so that the card teeth 3 can engage the tongues 8. The fixed springs 9 have similar sector-like slots but without the tongues 8 so that the card moves freely therethrough when the armature is operated. The card is retained in position by a thin spring 15 having a rectangular slot receiving the :card projection 4, the spring 15 being bent out of the way when the card is inserted :in the pile-up.
Patent GB-966933-A (GB)
Title: Improvements in or relating to moulding apparatus
Inventor: GOODWIN HENRY SAMUEL
IPC: B28B23/02
Filed: 1962-06-05
Abstract: 966,933. Moulding apparatus. SIEGWART FLOOR CO. Ltd. June 5, 1963 [June 5, 1962], No. 21641/62. Heading B5A. - An open-topped mould 1 is spanned by a bridge 6 hingedly connected to one side-wall 2 of the mould and rigidly latched to the opposite side-wall 3, the bridge having clips depending into the mould adapted to clamp a bar 25 of a reinforcing structure 26, to hold the structure firmly in position in the mould. The bridge comprises members 7 bolted together by lugs 8 and having a hooked lug 9 at one end and a slotted lug 10 with a latch 12 having an eccentric slot 13 pivoted thereto at the other end. In operation the hooked lug 9 engages a bar 4 on one side of the mould so the slot 13 of lug 10 falls vertically above a bar 5 on the other side of the mould. Rotation of the latch clamps the bridge in position. Each clip comprises coaxially apertured members 17 and 19 connected by a tube 16 and having a bolt 20 extending therethrough. A spring 23 connects member 19 to a collar 22 of the bolt thereby biasing the bolt upward. In operation the bolt is pushed downward so that a jaw 21 engages a bar 25 of the reinforcing structure 26 which is thereby firmly held in the mould. The apparatus may be used for moulding concrete beams, in particular by vibration moulding. Specifications 936,744 and 936,745 are referred to.
Patent GB-170641-A (GB)
Title: Improvements in gas grillers and toasters
IPC: A47J37/06
Filed: 1920-07-20
Abstract: 170,641. Stimex Gas Stove Co., Ltd., and Sayner, G. S. July 20, 1920. Atmospheric gas burners; perforated-tube burners.-A gas griller comprises a flat hollow body c of fire-clay or similar refractory material, to the interior of which gas is supplied and issues at the burner face by a plurality of fine holes d, the gas passing from the inlet pipe e through wire gauze to a longitudinal chamber h communicating with the body c by a slit k<1> in a diaphagm plate j. The body c is held in a metal frame a, and the burner face is surrounded by a rectangular fireclay flange g moulded thereon to confine the flame. Two such bodies c may be arranged on edge face to face. In a modification the hollow body c is constructed of a number of fire-clay tubes i embedded in fire-clay consolidating the whole into a single flat hollow burner as shown on the righthand of Figs. 1 and 2, and in such case the distributing-chamber h communicates with each tube i by a separate hole k<2> in the plate j. This griller burner may be surmounted by a similar burner having upwardly-directed jets for boiling purposes.
Patent GB-1465794-A (GB)
Title: Thiourea derivatives
IPC: A61K31/17
Filed: 1974-05-17
Abstract: 1465794 Thioureas JOHN WYETH & BROS Ltd 14 May 1975 [17 May 1974] 21980/74 Heading C2C Novel compounds (I) wherein R represents hydrogen, halogen, C 1-6  alkyl, C 1-6  alkoxy, aryl(C 1-6 )alkyl, aryl(C 1-6 )- alkoxy, hydroxy or trifluoromethyl, R<SP>1</SP> represents hydrogen or C 1-6  alkyl and R<SP>2</SP> represents hydrogen or aroyl, are made by reacting corresponding 2-aminoindanes with R<SP>3</SP>NCS (R<SP>3</SP> is aroyl) and thereafter, if desired, hydrolysing products (I) obtained where R<SP>2</SP> is aroyl to give (I) where R<SP>2</SP> is H. Pharmaceutical preparations having anorectic and/or anti-ulcer actions contain compounds (I) where R<SP>2</SP> is H as active ingredient. Administration is orally or parenterally.
Patent GB-646003-A (GB)
Title: Metallurgical processes for producing materials or articles of platinum or allied metals, or their alloys, and materials or articles produced by or from the products of such processes
Inventor: SMITHELLS COLIN JAMES
IPC: C22C32/00
Filed: 1944-11-08
Abstract: A metallurgical process consists in agglomerating by pressing and sintering metals of the platinum class with or without alloying ingredients, in amounts yielding cold-working alloys with one or more of the oxides of vanadium, niobium and tantalum, the quantity of which oxide is not greater than 10 per cent by weight of the metal, all the ingredients being in a finely divided condition, the sintered body being subsequently swaged, rolled, drawn or otherwise treated to bring it into the form of wire or sheet suitable for use in the production of desired articles.  A minor part of the said oxide or oxides may be replaced by one or more other oxides which are stable at the sintering temperature whether or not sintering is carried out in the presence of hydrogen or other reducing gas.  The following binary alloys may be used, namely platinum alloyed with up to 30 per cent of rhodium iridium or palladium, or with up to 15 per cent of ruthenium, gold, cobalt or nickel or up to 8 per cent of molybdenum, manganese or tungsten.  In an example, 100 c.c.s. of distilled water containing 90 grammes of platinum in the form of a suspension of ammonium choroplatinate is mixed with 50 c.c.s. of an aqueous solution of ammonium hexachlororhodate containing 10 grammes of rhodium and 10 c.c.s. of an aqueous solution of ammonium vanadate containing 0.2 grammes of vanadium pentoxide. The mixture is made up to about 200 c.c.s. with distilled water, dried and heated slowly to about 350 DEG C to decompose the salts to metal and vanadium oxide, which decomposition is completed at about 600 DEG C.  The product is crushed, heated to about 850 DEG C in a stream of hydrogen, sieved, pressed in a steel mould under a pressure of about 30 tons per square inch and sintered at about 1400-1500 DEG C and treated to bring it to wire or sheet form.  A further example is given of the production, in a similar manner, of a composition containing platinum, tungsten and tantalum oxide.  The product may be used in the production of sparking plug electrodes, thermo-couples, electric-furnace heating elements or wire gauze catalysts.  Specifications 645,541, 645,681 and 645,682 are referred to.
Patent GB-280318-A (GB)
Title: Improvements in wind driven motors
IPC: F03D3/06
Filed: 1926-09-07
Abstract: 280,318. Shaw, R. D. C. Sept. 7, 1926. Current motors.-A horizontal wind wheel has arms E with downward depending lugs F supporting the horizontal pivots B' of the vanes B, which are arranged unequally about their pivots so that the wind tends to press them against stops G when going with the wind and to cause them to assume a horizontal position when going against it. Each vane carries a cranked arm H with a pin H<1> running in a cam groove J<1> in the boss J revolvably mounted on the driving shaft A, to ensure the correct feathering action, the boss carrying a frame K with a vane L which causes the cam to take up the correct position according to the direction of the wind. The lower edge of the cam groove may be moved downwards bv the levers N, O and rods X to put the feathering mechanism out of action, a flange M, attached to the lower edge of the cam groove, engaging the pins H<1> to bring all the vanes to the horizontal position.
Patent GB-636140-A (GB)
Title: Improvements in photographic emulsions
IPC: G03C1/09
Filed: 1947-08-08
Abstract: 636,140. Photographic emulsions. KODAK, Ltd. Aug. 8, 1947, No. 22119. Convention date, Nov. 17, 1939. [Class 98 (ii)] A highly-sensitive developing-out silver halide emulsion is prepared by the incorporation, at any stage in its preparation, of a gold compound which provides gold ions in aqueous media in an amount less than 0.015 per cent by mols. of the silver halide. An amount between 0.003 and 0.005 per cent may be employed. The gold compound may be introduced into the washed finished emulsion, at the end of the first digestion before the addition of further gelatine, or during the second digestion after the addition of further gelatin. The emulsion may be a gelatino silver bromide, bromiodide, chloro, or bromochloride emulsion, and may be an acid, neutral, alkaline, partially ammonia converted, or wholly ammonia converted. The gold compound may be a simple or complex halide (e.g. auric chloride or bromide or potassium aurichloride), auric sulphate, aurous chloride, an alkali metal aurous thiosulphate or sulphite, or the complex salt from auric chloride and thiourea. Potassium aurocyanide is unsuitable. The preparation of an emulsion is described, and data are given showing the effect of the addition of auric chloride to various emulsions. Sensitizing dyes may be added.