baber/WOPTO huggingface dataset:
Patent GB-568561-A (GB)
Title: Improvements in and relating to the manufacture and application of synthetic rubber-like materials
IPC: C08F236/04
Filed: 1939-04-25
Abstract: Synthetic rubber-like materials are made by polymerizing mixtures of 1-carbalkoxy butadiene-1-3 with butadiene-1-3 or 2-chlor-butadiene-1-3 or a methyl or dimethyl derivative of either. The carbalkoxy butadiene is defined as CH2 : CH.CH : CH-COOR where R is alkyl, hydroxy-alkyl, alkoxy-alkyl, chloralkyl or arylalkyl; the preparation of some of these bodies is described in Specification 523,080 and the others may be made similarly.  The polymerization may be effected in aqueous emulsion, and catalysts and modifying agents known to have a favourable effect in the polymerization of chlorbutadiene may be added, including sulphur dioxide and hydrogen sulphide (Specification 497,420) and mercaptans and mercaptocarboxylic acids (Specifications 497,638 and 497,706), and other catalysts such as benzoyl peroxide, peracetic acid and ammonium persulphate may also be added.  Chlorine-containing aliphatic compounds such as carbon tetrachloride may be present.  The products may be vulcanized and are then more resistant to hydrocarbons than vulcanized chloroprene.  There are 29 examples, a number of them for the vulcanization of the products of the other examples, and particulars of the properties of the products are given.
Patent GB-305881-A (GB)
Title: Improved automatic drive for stereoplate casting machines
IPC: B41D3/00
Filed: 1928-04-30
Abstract: 305,881. Winkler, C. April 30, 1928. Stereotype.-Relates to an automatic drive for the shafts for closing and opening the mould, and for actuating the valve controlling the flow of metal from the melting-pot in stereotype casting machines, the arrangement being such that parts of the mechanism are actuated quickly during the time when the mould is being opened and closed, and slowly while the cast plate is cooling. The mechanism is driven from a continuouslyrotating worm-wheel h secured to a sleeve f rotatable on a second sleeve e which in turn is rotatable on the shaft a controlling the movements of the valve. The movement of the sleeve f is' communicated by toothed segments i, d to the sbaft b to close the mould and when the mould is completely closed the segments i, d are disengaged. The movement of the sleeve f is also communicated to a sleeve on the shaft b, by means of a gear-wheel k and segment l, and a segment m on the sleeve g and a gear-wheel c serve to rotate the shaft a to open the valve. The sleeve g has then arrived at such a position that teeth on a segment n are in position to be engaged by the tooth on a wheel w to rotate the sleeve a certain distance at each revolution of the sleeve f, movement of the sleeve g being prevented except under the influence of the wheel w by a pawl engaging correctly-spaced notches in a disc n<1>. During the period of slow rotation of the sleeve g the shafts a, b are stationary, this period corresponding with the time that the cast plate is cooling. The gear-wheel k is then re-engaged by the teeth of the segment l, and the gear-wheel c is engaged by the segment m to close the valve. The rotation of the sleeve g, whether slowly or quickly, results in the rotation of the sleeve s through the engagement of the wheels o, p, and the segment q is in consequence rotated. The segment q is thus brought into engagement with the segment r formed integral with the segment d so that the shaft b is actuated to open the mould. The wheel k is of smaller diameter than the segment l, and the wheels o, p are of the same diameter, so that the opening of the mould is performed relatively slowly. Geneva-stop mechanism s, t is provided for locking the shaft b in the open position of the mould, and stop mechanism u, v and y, x serves to lock the shaft a in the open and closed positions of the valve.
Patent GB-398130-A (GB)
Title: Improvements in and relating to water softening apparatus
IPC: C02F1/42
Filed: 1933-05-01
Abstract: 398,130. Softening water. UNITED WATER SOFTENERS, Ltd., Aldwych House, Aldwych, London.-(Permutit Co.; 440, 4th Avenue, New York, U.S.A.) May 1, 1933, No. 12652. [Class 46.] The salt solution tank 2 of a base-exchange water-softening apparatus is fitted with a funnel 3 through which salt is supplied to the tank, the arrangement being such that the tank cannot be charged with salt to a level above that of the lower end of the funnel. The salt in the tank will, consequently, not interfere with the operation of a float 15 in the tank which controls the supply of the make-up water. In the case of apparatus with manuallyoperated valves the funnel on removal of the cover 6 will allow the operator to observe the amount of brine withdrawn from the tank during regeneration. A mark may be made on the inside of the funnel to facilitate this observation. The tank 2 may be provided with an overflow 26 for the discharge of liquid, when salt is being charged into the tank, and with an air vent.
Patent GB-275352-A (GB)
Title: Improvements in or relating to the haulage or driving mechanism of coal cutting machines
IPC: E21C29/10
Filed: 1926-05-17
Abstract: 275,352. Diamond Coal-Cutter Co., Ltd., and Lithgoe, J. May 17, 1926. Coal-cutting machines.-Power is transmitted to the haulage drum of a coal-cutting machine through a differential or sun and planet gear controlled by a brake, alternative transmissions being provided between such gear and the drum comprising a direct high-speed gear and an eccentric and ratchet gear for low speed, a clutch connecting either of such transmissions to the drum. The motor shaft B, through gearing b, c, drives a shaft C which, through sun and planet gearing E controlled by a band brake f, drives a gear wheel D and an eccentric g; the gear D meshes with a loose gear K and the eccentric g acts through alternately operating pawls h to actuate a loose ratchet wheel H. A clutch j connects either the gear K or the ratchet wheel H to a shaft J to drive the latter at high or low speed, the shaft J driving the haulage drum through worm gearing m, n.
Patent GB-497467-A (GB)
Title: Improvements in or relating to means for feeding an endless band of material throughliquid in a vat
IPC: D06B3/26
Filed: 1938-04-28
Abstract: A reel of conical form is positioned between a rotatable pleating-feed reel and guide rolls for feeding a web of material formed into an endless band through a dye or other liquid treatment vat, and, by bodily displacing the material axially on the conical reel or by axial movement of the reel or both these movements <PICT:0497467/IV/1> <PICT:0497467/IV/2> together, in accordance with the weight of material accumulating on a balance pan, the rate of feed and tension is regulated.  As shown, Figs. 2, 3, the material 11 passes over a conical reel 15 between the feed roll 13 and guide rolls 16, 17, and thence to a balance pan 35 supported by a lever 36 pivoted at 41 and carrying an adjustable counterweight 38.  Rotary movement of a wheel 42 produced by angular movement of the lever 36 in either direction, moves, by a chain 44, a pinion wheel 29 which moves rack bars 27, 33 by equal amounts in opposite directions.  The rack bar 27 carries the conical reel 15, while the rack bar 33 carries guides 34 between which the material moves and by which it is moved axially of the reel 15.
Patent GB-999204-A (GB)
Title: Weft knitting machines
IPC: D04B7/08
Filed: 1961-07-16
Abstract: The subject-matter is the same as Specification 999,203 but the claims differ.
Patent GB-197698-A (GB)
Title: Improvements in or relating to instruments for use in tapping rubber-latex and like producing plants
IPC: A01G23/12
Filed: 1923-05-14
Abstract: 197,698. Bosch, J. May 15, 1922, [Convention date]. Cutting-appliances. - An instrument for tapping rubber and like trees of the kind provided with a cutting- edge running across the back of the bent-over upper portion of the stem, is formed with a local thickening of the material at 10, the edge of which runs substantially parallel to the back 4 of the bent-over portion. The thickening 10 also covers the lip 3, and the point 11 of the cutting-edge 9.
Patent GB-685513-A (GB)
Title: Automatic metal arc welding system
IPC: B23K9/073
Filed: 1951-05-31
Abstract: 685,513. Control of D.C. motors. UNION CARBIDE & CARBON CORPORATION. May 31, 1951 [June 27, 1950], No. 12907/51. Class 38 (iii) [Also in Group XXXV] In a D.C. arc welding system, the rate at which a non reversing separately excited, D.C. motor feeds the electrode to the work is controlled according to both the arc voltage and the difference between a preset and the actual speed of the feed motor. The difference between the arc voltage and a reference voltage (from source 125) tapped off a potentiometer 76 is applied to the grid of a cathode follower valve 82. The amplified resultant appearing across load resistor 98 is added to a motor speed reference voltage tapped off a potentiometer 40, and opposed by a voltage proportional to the actual motor speed tapped off a potentiometer 32 connected across the armature of the feed motor 20. The resulting control voltage is added to a voltage which is 90 degrees out of phase with the anode voltage of a gas filled valve 26 and is obtained from a phase shift network 54. The resultant is applied to the grid of the valve 26, thus controlling the speed of the motor 20. Constant speed control alone may be obtained by changing over switch 114 to by-pass the arc voltage signal.
Patent GB-495052-A (GB)
Title: The improved treatment of fibres, threads, and materials made therefrom
IPC: D06B1/02
Filed: 1937-05-06
Abstract: The treatment, according to the parent Specification, of freshly spun artificial threads, fibres or the like formed from cellulose solutions is now extended to threads, fibres, ribbons and like materials other than freshly spun materials prepared from cellulose solutions.  Treatments referred to are washing, dyeing, soaping, bleaching, carbonizing, greasing, stuffing and oiling. Cut fibres may be treated by floating them by means of an oscillating tube in a zigzag layer and removing them by a suitable lifting device.
Patent GB-1107071-A (GB)
Title: Cosmetic depigmenting compositions
IPC: A61K8/368
Filed: 1965-03-26
Abstract: Topical compositions for reducing the pigmentation of the skin comprise a cosmetically acceptable topical carrier together with 0.1-30% by weight of a C2-C6 aliphatic hydrocarbon substituted on one carbon by an -SH or -SCOR group, wherein R is alkyl having up to 6 carbons, and on a different carbon by an -NR\svR\yF group, wherein either (i) R\sv + R\yF together with the nitrogen form part of heterocycle; or (ii) R\sv is alkyl having up to 6 carbons and R\yF is H or an alkyl group having up to 6 carbons; or (iii) providing that the active agent is present only as the acid addition salt, or the composition has a pH below 6.0 and/or contains an anti-oxidant, R\sv and R\yF may each be H or an alkyl group having up to 6 carbons.  The preferred depigmenting agents are 2-mercapto-ethylamine, and N,N-dimethyl-2-mercapto-ethylamine.  The aliphatic residue may be saturated or unsaturated or cyclised (e.g. from ethane, n-butane or iso-butane, or the corresponding alkenes or cyclo-alkanes). The sulphydryl group is preferably on a primary carbon atom.  When R\sv and R\yF form part of a heterocycle group, such groups may be morpholino, pyrrolidino or piperidino.  The compositions may take the form of hydrophilic or hydrophobic ointments, creams, or aqueous, non-aqueous or emulsified lotions, and may include active ingredients such as exfoliating agents, and other depigmenting agents (e.g. catechol).  The preferred pH is 3.9 to 4.1; preferred anti-oxidants are the methyl or propyl esters of p-hydroxy-benzoic acid.  The acid addition salt of the active agent may be the hydrochloride.
Patent GB-1163667-A (GB)
Title: A Strainer Device Particularly for Paints.
Inventor: BROWN EVAN
IPC: B44D3/10
Filed: 1967-03-20
Abstract: 1,163,667. Paint strainer. E. BROWN. 6 March, 1968 [20 March, 1967], No. 13008/67. Heading B1D. [Also in Division F2] A strainer for use in painting comprises an open-ended, plastics tube 3 with external resilient ribs 4 whereby the tube is frictionally suspended from the open mouth 5 of the paint can 2, a perforate sheet closing the lower end of the tube so that paint is strained by upward flow through the sheet. The paint brush is then dipped into the paint in the tube, which is periodically pushed further down into the paint can. The sheet may be a piece of double thickness nylon mesh, attached to the tube by a rubber band above lower circumferential rib 7, ribs 4 stopping short of rib 7 and this end of the tube possibly tapering. The mesh is removed and discarded after use. Or the sheet is a perforate plate integral with the tube or connected thereto in a snap-on manner. In use, the brush may be rested in the tube without becoming over-charged with paint.
Patent GB-460989-A (GB)
Title: Gear change mechanism for motor vehicles and motor cycles
IPC: B62M25/04
Filed: 1935-05-02
Abstract: 460,989. Controlling change speed gearing. EHRLICH, J., GROGER, O., KOLB, A., and KOLB, J. May 2, 1935, No. 13075. Void. Convention date, May 2, 1934. [Class 80 (ii)] Relates to controlling-means for changespeed gearing suitable for motor-cycles of the kind in which repeated strokes of a hand or pedal lever 1, Fig. 1, causes step-wise displacements of a gear change lever 11. The lever 11. is looked in the position shown by a spring ball 14 engaging a recess 13 in a disc 12 rigid with the lever. To change one step up, the pedal 2 is momentarily depressed against a pair of centring springs 15. A spring dog 4, Figs. 4 and 5, is thrust through a window 7 in a plate 8 and after engaging a ratchet tooth 9 on the disc 12 carries that tooth 9 down to the bottom edge of the window 7. A companion oppositely-set dog 5 rides idly up on the plate 8. The gear lever 11 is carried one step right of Fig. 1 and locked by the ball 14 as the pedal 2 rises on the idle return stroke. A sleeve 16 is thus moved right compressing a spring 18 so that a gear-changing rod 17 follows to effect the gear change when it can or on synchronism of the parts, not shown, to be engaged. A second depression of the pedal 2 causes a second rightward stepped displacement of the lever 11. A momentary depression of an opposite pedal 3 causes a stepped displacement of the gear lever 11 left for a change-down by the engagement of the dog 5 with oppositely-set ratchet teeth 10 on the disc 12.
Patent GB-187644-A (GB)
Title: Improvements in or relating to dynamo-electric machinery applicable for electric welding
IPC: H02K23/36
Filed: 1921-05-07
Abstract: 187,644. Brush Electrical Engineering Co., Ltd., Boyce, B. A. M., and Huggins, P. May 7, 1921. Exciting; motor-generators.-A compounded continuous-current generator for welding has the armature circuit permanently connected between one welding lead and the other so as to exclude the series coil or coils and provide a path across the leads which is practically non-inductive, the inductance of the armature being ignored. Fig. 1 shows a machine having two independent armature windings, the brushes b, b, d, d of which are connected in parallel to the welder leads f, the series coils g of the machine being included in the circuit from one of the commutators e only. A compensating non-inductive resistance m may be included in the leads from the other commutator c and the shunt coils h are preferably connected to the commutator e which feeds the series coils. In the four-pole machine shown in Fig. 2, the two pairs of brushes b, b, d, d, are connected in parallel to the welder leads f and the series coils g are only included in one of the leads from the brushes d. The shunt-coils are shown at h, and a non-inductive compensating resistance may be included on the other side. In an alternative form, a single commutator twobrush machine with compound short shunt excitation is used, a non-inductive resistance being permanently connected across the series coils. The machines may be shaft-driven as generators, or may run as motor-generators. Alternatively, they may run up on the supply through the leads j as motors between welding periods.
Patent GB-1359099-A (GB)
Title: Bags
IPC: B65D33/24
Filed: 1972-03-21
Abstract: 1359099 Bags and pouches DECOFLEX Ltd 16 March 1973 [21 March 1972] 13152/72 Heading A4G [Also in Divisions B5 and B8] A transparent polythene bag includes a downwardly opening pouch 8 and an enclosed part 7 formed on its front wall. The front and back walls of the bag may be of equal depth Fig.6 (not shown) or the rear wall may be deeper than the front wall, as shown, or vice versa Fig.7 (not shown). The bag is closed by turning the pouch 8 inside out to enclose the part 7 and the free end portion of the rear wall Fig. 5 (not shown).
Patent GB-131833-A (GB)
IPC: B25B13/50
Abstract: 131,833. Griffiths, A. Feb 24, 1919. Extensible and adjustable handles; fixing by screwed tangs.-The handle or shank of a wrench has the head 6 secured at opposite ends in planes at right-angles, and the shank may be adjustable in length. As shown, the head b has a square hole which may be engaged in different positions on a square pin 2 projecting laterally from one end ot the shank, or on a square pin 4 projecting in line with the other end of the shank. A nut 11 on the screwed ends 3 of the square pins 2, 4 secures the head in position. The shank may be in one piece, or, as shown, in two parts 1<a>, 1<b>, slidable one on the other and fixed in adjusted position by a bolt 15 and holes 16, 17, or the holes 17 may be replaced by a slot. Holes may be provided in the upper end 1<a> of the shank for the insertion of a tommy-bar to turn the wrench when the head on the lower pin 4 is in use.
Patent GB-528295-A (GB)
Title: Improvements in electromagnetic switches
IPC: H01H50/88
Filed: 1939-05-03
Abstract: 528,295. Electromagnetic switches, BRITISH THOMSON-HOUSTON CO. Ltd. May 3, 1939, No 13 2 2 0. Convention date, May 3, 1938. Addition to 524,816. [Class 38 (v)] In an electromagnetically - controlled self starter of the kind described in the parent Specification the checking mechanism is arranged so as to allow a quick switching operatior when each of the step contacts 27, 28, 29, 3C is engaged. This may be achieved by providing certain toothless portions on the toothed rack 19.
Patent GB-989045-A (GB)
Title: Process for the preparation of compounds of the ionone series
Filed: 1963-04-03
Abstract: g -Compounds of the ionone series are made by cyclizing pseudoionone and its homologues in the presence of BF3 complex compounds, the addends of which are formed by compounds which are not subject to the cyclization reaction, e.g. water, alcohols, esters, carboxylic anhydrides, carboxylic acid esters, ketones, dialkyl sulphides and sulphoxides, and particularly ethers.  The polar addends may be used in an excess over the amount necessary for the formation of the BF3 complex. Proton acceptors such as organic bases, particularly organic nitrogen-containing bases, including dimethyl formamide and pyridine, may also be added.  A preferred embodiment involves the use of free acids, e.g. carboxylic acids, as polar addends together with organic bases or inorganic buffer systems.  Thus a compound of BF3 and acetic acid with a sodium acetate buffer may be used as the catalyst. Prefererd temperatures are within the range - 10 DEG  C. and + 40 DEG C., particulary between 25 DEG  and 30 DEG  C. Examples describe the conversion of trans-pseudoionone to g -ionone; trans-pseudoirone to g -irone; trans-pseudo-n-methylionone to g -n-methylionone; trans-pseudo-isomethylionone to g -isomethylionone.
Patent GB-132449-A (GB)
IPC: F24B1/188
Abstract: 132,449. Hennessy, J. A. March 17, 1919. Air - heating fireplaces. - Air spaces S are provided at the sides and back of an open fire-place. Air is admitted through openings in the sides near the floor and passes out into the room through a hit- and-miss valve at O. Reference has been directed by the Comptroller to Specification 1192/73.
Patent GB-891083-A (GB)
Title: An electronic voltage regulator
Inventor: BERCELI TIBOR
IPC: G05F1/52
Filed: 1960-04-13
Abstract: 891,083. Automatic voltage control systems. TAVKOZLESI KUTATO INTEZET. April 13, 1960, No. 13256/60. Class 38 (4). In a voltage regulator of the series valve type, the regulating valve 5 is connected via a phasereversing amplifying valve 6 to a control valve 7, and a stabilizer valve 15 maintains constant the voltage between the cathode of the control valve and a base point 20 of a voltage divider 8-12 connected across the output terminals 3, 4. The valves 5-7 may be multigrid valves and the valves 6, 7 may comprise a double triode. One or more stabilizer valves may replace the resistor 8, and the anode resistor 16 of the control valve 7 may then be connected to the positive output terminal. The range of the regulator may be adjusted by variation of the resistor 12. The regulator is for stabilizing D.C. voltages above 500 volts.
Patent GB-1205333-A (GB)
Title: Improvements in dispersed compositions
IPC: C09K23/00
Filed: 1968-03-19
Abstract: 1,205,333. Non-aqueous dispersions. ACHESON INDUSTRIES Inc. 19 March, 1968 [9 May, 1967; 9 June, 1967], No. 13306/68. Heading C1A. [Also in Divisions C3 and C5] A pigment composition comprises a dispersion in a non-aqueous liquid carrier of (a) 0À001- 75%, by weight of the composition, of at least one of titanium dioxide, lead sulphide, carbon black, talc or mica in solid particulate form, and (b) 5-100%, by weight of (a), of at least one polymethylene polymer which is either a copolymer of ethylene and propylene or a terpolymer of ethylene, propylene and an unconjugated diene monomer, having a viscosity of at least 10 poises at 20 C., and having an average ratio of methyl substituents plus diene functions, if present, to carbon atoms of the main polymer chain of about one to four. The carrier may be a single petroleum oil or a blend thereof, an aliphatic or aromatic naphtha, a polypropylene glycol oil, or a vegetable oil, such as rapeseed. The concentrate may be diluted with further carrier or with other petroleum oils, greases or other liquid hydrocarbons to a particle content of 0À001-15% for use. The pigment particles are generally smaller than 149 Á, preferably below 10 Á. The polymer serves as a stabilizing agent for the solids dispersion. In Example XV dispersions of the following pigments or fillers are prepared: titanium dioxide, channel black, thermal carbon black, talc, lead sulphide and mica.
Patent GB-564730-A (GB)
Title: Improvements relating to the production of hydrocarbons
IPC: C07C1/06
Filed: 1940-08-22
Abstract: In the catalytic production of hydrocarbons by reacting carbon monoxide with hydrogen in a liquid medium, the latter is prepared by dissolving a salt of the catalytically active metal in an organic inert liquid such as a hydrocarbon of high boiling point or a fraction of the reaction products themselves.  Salts specified are those of fatty acids of high molecular weight such as stearic, palmitic and lauric acids, salts of resin acids and salts of acids of lower molecular weight such as the acetoacetates.  Metals mentioned are nickel and cobalt, particularly when used in conjunction with copper or manganese, and with such actuators as thoria, alumina, magnesia and zinc oxide, which may be suspended in the solution of metal salt; iron also is referred to.  According to the example, metallic cobalt and copper are dissolved in nitric acid, and after mixing with thorium nitrate solution, sodium carbonate is added to precipitate the carbonates, which are then dissolved in lauric acid; the product is added to a fraction of the oil from a previous synthesis, when first a current of hydrogen is passed through the solution at 195-200 DEG  C. for some hours and then a mixture of carbon monoxide with twice its volume of hydrogen whilst maintaining the same temperature; the products are removed by distillation as they are formed.  Specification 505,121 is referred to.