baber/WOPTO huggingface dataset:
Patent GB-144761-A (GB)
Title: Improvements in or relating to apparatus especially useful as relay, oscillograph, telegraph, telephone, automatic current or tension-regulator and other arrangements sensitive to variations of electrical tensions
IPC: H01H59/00
Filed: 1919-03-06
Abstract: 144,761. Rahbek, K., and Johnsen, F. A. March 6, 1919. Electrostatic instruments; telephonic relays.- Relates to apparatus in which the attraction or the friction between two bodies in relative movement or between which there is a tendency to relative movement, is varied electrostatically. The movement produced by the variation in attraction or friction in response to changes in potential may be used to operate a diaphragm, so that apparatus based on this principle may be used as a telephone receiver, telephone relay, &c. In the no-voltage relay shown in Fig. 1 two metal plates 2, 3 are separated by a plate 1 of a poor conductor, the potential E connected to the plates 2, 3 normally producing such an attraction between the plates that a force P, such as a spring, is unable to overcome the friction and move the pate 2 relatively to plate 3. If, however, the voltage falls, the fraction is reduced and the spring P moves the plate 3 to effect the necessary circuit change. The plate 1 may be made of animal membranes, skin, gelatine, pyroxyline, paper, or other organic substances, slate or marble. In a modified construction, a band of gelatine paper covered with tin foil or gold leaf hangs over a stationary metal cylinder. In a further modification, the gelatine paper 1, Fig. 3, covered with tin foil 3, is laid around a rotating metal cylinder 2, and its ends are secured to springs 5, 7. An increase of the potential E supplied to the cylinder 2 and foil 3 increases the friction and causes the band 1 to move so as to tension the spring 5. The movement of the band 1 may operate a telephone diaphragm &c. If the apparatus is used as an oscillograph for examining the shape of the curve on an alternating voltage, the latter must be placed in series with a direct current voltage, so that the resulting voltage remains either positive or negative. Similarly, when the apparatus is used as a telephone receiver, the end 4 of the band 1 is connected to a diaphragm and the voice currents, raised in voltage by a transformer, are superposed upon a direct current source. The diaphragm may operate a microphone so as to form a telephone relay. Means are described for damping the movement of the gelatine band and for removing dust &c. from the band and cylinder. Means are also described for automatically regulating the normal friction between the two members, either by regulating the source of directcurrent voltage or the effective frictional area. In a further modification, the rotating cylinder may be replaced by a disk. A telephone receiver of this type, being a voltage operated instrument, is well suited for use with an audion, and may be connected across an inductance or ohmic resistance in the plate circuit of the audion,
Patent GB-936506-A (GB)
Title: Improvements in or relating to polymer compositions
Inventor: WILLIAMSON GEORGE RALPH
IPC: C08K5/132
Filed: 1961-02-15
Abstract: A polymer composition which comprises a major proportion of a polymer obtained by polymerizing an olefinically unsaturated compound, and a minor proportion of additives comprising (a) an organic phosphite of the formula, <FORM:0936506/IV(a)/1> in which Z represents a hydrogen atom or an -OR11 radical and R1 and R11 represent the same or different hydrocarbon radicals which may be substituted, and (b) an ultra-violet stabilizer of the general formula, <FORM:0936506/IV(a)/2> in which X represents a hydrogen, or a halogen atom or a radical selected from substituted and unsubstituted alkyl, cycloalkyl, aryl, alkoxy, aryloxyacyl, or aroyl radicals, and R represents a substituted or unsubstituted aryl radical or radical -OR1 in which R1 represents a substituted or unsubstituted alkyl or aryl radical.  The polymer may be a homo- or copolymer of ethylene, propylene, or butylene.  The additives may include an organic acid salt of a metal from Group I to IV of the Mendel<\>eeff Periodic Table and/or a sulphide of a metal from Group II.  Specified phosphites are trihexyl, tri-(2-ethyl-hexyl), tri-lauryl, tri-octyl, tri-(p-isopropylphenyl), tri-(p-tert.-butyl-phenyl), di-(p-tert.-butyl-phenyl) mono-phenyl, tri-(n-octyl), tri-(nnonyl), tri-(nonyl-phenyl, tri-stearyl, or tri-cyclohexyl phosphite. Preferred ultra-violet stabilizers are dodecyl phenyl salicylate, tert.-butyl phenyl salicylate, or a hydroxy-alkoxy benzophenone, or a dihydroxy-alkoxy benzophenone.  The preferred metal salt additives are stearates, laurates, oleates, phthalates, alkyl salicylates, naphthenates and ricinoleates of lithium, cadmium, strontium, barium, magnesium, zinc, aluminium, tin, lead, and bismuth.  Specifications 786,167, 799,392, 799,823, 801,031, 803,557, 810,023, 844,437 and 867,566 are referred to.
Patent GB-1024680-A (GB)
Title: A self-propelled wheel chair
Inventor: LOTZ BENNO
IPC: A61G5/04
Filed: 1965-02-09
Abstract: 1,024,680. Self - propelled wheel chairs. EVEREST & JENNINGS Inc. Feb. 9, 1965, No. 5669/65. Addition to 925,699. Heading B7H. In a self-propelled wheel chair comprising as in the parent Specification two side frames each having mounted thereon a drive wheel driven from a separate electric motor through a belt entrained around a drive rim on the wheel and a pulley on the motor, each motor 4 is displaceable to tension the belt 7 on parallelogram links 9, 10 actuated by a hand lever 17 through a toggle link 18. The links 9, 10 are adjustably mounted on the side frame 1 by means of a sliding member 8 positioned along a frame member 12 by an adjustable abutment 14.
Patent GB-611077-A (GB)
Title: Process for plasticising natural or synthetic rubber
IPC: C08K5/372
Filed: 1946-02-23
Abstract: Natural and synthetic rubbers are plasticised by means of a compound of the general formula: R1O-(C2H4O) m-CH2-CH2-Sx-CH2-CH2 -(OC2H4)n-OR2 in which x is an integer greater than 2, m and n are integers greater than or equal to zero, and the radicals R1 and R2 each represent a member of the group consisting of hydrogen atoms and monovalent organic radicals.  The plasticisers may be made by reacting a monohalogenated derivative of organic compounds, such as ethylene chlorohydrin or b -hydroxyethyl-b -chlorethyl ether with polysulphides of alkali metals or alkali earth metals.  The reaction is preferably effected at 50-130 DEG  C. in aqueous solution or in an alcohol-water solution.  Specified compounds are bis-(hydroxy-ethoxyethyl)-tetrasulphide and the corresponding tri-sulphide, and tetra-thioglycol.  In an example the plasticiser is produced in situ during the formation of a thioplast by reacting sodium polysulphide with ethylene dichloride and ethylene chlorhydrin.ALSO:Natural and synthetic rubbers are plasticized by means of a compound of the general formula:-R1O - (C2H4O)m - CH2 - CH2 - Sx - CH2 - CH2 - (OC2H4)n -OR2 in which x is an integer greater than 2, m and n are integers greater than or equal to zero and the radicals R1 and R2 each represent a member of the group consisting of hydrogen atoms and monovalent organic radicals.  Specified plasticizers which may be made according to the method set out in Group IV(a) are bis-(hydroxy-ethoxy ethyl)-tetrasulphide, and the corresponding trisulphide, and tetrathio-glycol.  In examples, from 0.05-3.0 per cent of the plasticizer is used.  The plasticizer may be added as such or formed in situ in the case of a thioplast.
Patent GB-197297-A (GB)
Title: Improvements in binding posts
IPC: H01R4/32
Filed: 1923-02-27
Abstract: 197,297. National Acme Co., (Assignees of Smith, O. A.). May 2, 1922, [Convention date]. Binding-posts.-A binding- post has a clamping slide 12 within a conductor slot 11 operated by the rotation of a cap 14 which is internally screwed to engage threads 13 upon the slide and is bent inwardly over a rib 18 upon the post.
Patent GB-225436-A (GB)
Title: Improved manufacture of abrasive devices
IPC: B24D3/28
Filed: 1924-03-06
Abstract: 225,436. Wade, H., (Carborundum Co.). March 6, 1924. Drawings to Specification. Moulding grinding-wheels and other tools. - Grinding-discs, wheels, stones, &c., which may have a cloth or paper backing, are formed by mixing with the abrasive grains a resin solvent, for example, furfural, in sufficient quantity to coat the surfaces of the grains, which are then mixed with a powdered phenol resin, for example that known under the registered Trade Mark " Redmanol." The mixture is placed in an iron mould and moulded under a pressure of approximately 900 pounds per square inch, after which it is removed from the mould and baked for fifteen hours at a temperature of about 350‹ F.
Patent GB-124817-A (GB)
Title: Improvements in or relating to the Manufacture of Manganese Steel.
Inventor: HADFIELD ROBERT ABBOTT
Filed: 1916-04-19
Abstract: 124,817. Hadfield, Sir R. A. April 19, 1916. Hardening.-Manganese steel, high in silicon or aluminium, or both, is toughened by heating to about 900-1050‹ C. and quenching in water.
Patent GB-1498363-A (GB)
Title: Gel-impregnated sponges
IPC: C11D17/04
Filed: 1976-02-13
Abstract: 1498363 Gel-impregnated sponge H S AKRONGOLD and R AKRONGOLD 13 Feb 1976 05773/76 Heading C5D An impregnated sponge is made by a process which comprises inserting a gel-forming material in a mould, immersing part of a sponge in the gelforming material while the latter is in a liquid state at a suitable elevated temperature, allowing the gel-forming material to set after removal from the mould, inverting the sponge while not compressing it and allowing the gel-forming material to migrate inwardly, then allowing solidification to be completed. The sponge may be of polyether-polyurethane foam which is fully or partly reticulated (defined), and has at least two layers at least one of which is impregnated and one at least is not impregnated. As shown in Figs. 1 and 2, impregnated layers 14, 22 and 26 have unimpregnated layers 12 and 24 adjacent thereto. The gel-forming material may comprise a soap or a synthetic detergent such as diethanolamine ricinoleate, an imidazoline surfactant, sodium lauryl-sulphate, an alkanolamide or di- and triethanolamine lauryl sulphate. Other components may be sodium stearate, a polyimide, isostearic acid or a polyamide. Other solid foams may be of polyester polyurethane, latex, natural rubber, silicates, polyolefins, ceramics and cellulose.
Patent GB-1010762-A (GB)
Title: Closure for bottles and the like
Inventor: ASTRUCK PAUL
IPC: B65D41/34
Filed: 1961-02-16
Abstract: 1,010,762. Stoppers. PERMUTA CLOSURES Ltd. Feb. 16, 1962 [Feb. 16, 1961], No. 5780/61. Heading B8T. A screw-type bottle closure is moulded in one piece from a resilient plastic material, e.g. polythene, and includes a skirt portion 4 with an annular rib 5 which engages beneath a shoulder 6 on the bottle neck beneath the screwed portion 7 thereof when the closure is fully screwed home; thus, unscrewing of the closure is prevented so long as the skirt remains intact. The skirt has spaced grooves 8 forming lines of weakening, and a tab portion 12, whereby the skirt may be torn from the closure so that the latter may be unscrewed. The tab defined by slots 10, 11 is urged outwardly from the bottle by a projection 13. In a modification the closure comprises a screwed stopper adapted to screw into a bottle neck, and is integral with a skirt and tab as above described.
Patent GB-1414251-A (GB)
Title: Spool valve assemblies
IPC: F15B13/04
Filed: 1973-02-06
Abstract: 1414251 Dozers PARKER-HANNIFIN CORP 6 Feb 1973 [17 Feb 1972] 5787/73 Heading E1F [Also in Division F2] In a spool valve for controlling the movements of a double-acting cylinder 8 actuating a bulldozer blade 21 the spool is provided with grooves 38, 40 which selectively communicate the work ports 16 with the inlet ports 14 and the outlet ports 17. When the groove 38 communicates the lower work port with the inlet in a lower position of the spool two passages in the spool communicate the upper work port with the upper outlet port 17 and the inlet port. The two passages are formed respectively by ports 25, passage 26, relief valve 23 and ports 27, 28 and by ports 25, bore 35, check valve 32 and ports 36. The groove 40 and a groove 41 communicate the two work ports with the outlet ports in a "float" position of the spool.
Patent GB-774233-A (GB)
Title: Improvements in and relating to laminated sheet material
IPC: B32B27/00
Filed: 1955-02-28
Abstract: 774,233. Laminated sheet material. BERRY, L. Feb. 28, 1955, No. 5862/55. Class 140. Laminated sheet material comprising an upper layer of melamine formaldehyde in urea melamine formaldehyde impregnated paper, an intermediate layer of linen or linen-like fabric and a lower backing layer of rigid material such as wood, said upper, intermediate and lower backing layers being bonded or united by a resinous bonding agent under the action of heat and pressure. The backing layer may consist of plywood, block-board, compressed chipboard or metal. Artificial resin of the formaldehyde group may be used as the bonding agent. The upper paper layer may itself be covered with an overlay finishing paper which is also impregnated with a resin and may be printed.
Patent GB-753372-A (GB)
Title: Improvements in reciprocating compressors
IPC: F25B31/02
Filed: 1954-03-01
Abstract: 753,372. Engine cylinders. MAULAVE, R. L. March 1, 1954 [March 5, 1953], No. 5944/54. Drawings to Specification. Class 122(1) [Also in Group XXVIII] The cylinders of a compressor are subjected externally to delivery pressure and are formed of flexible material, e.g. nylon.
Patent GB-344202-A (GB)
Title: A wire clothes peg
IPC: D06F55/00
Filed: 1930-02-24
Abstract: 344,202. Clothes-pegs. TIRRELL, S., Regent Street, PEACH, H. F. A., Peach Chambers, both in Kogarah, and DIGGINS, W., 76, Pitt Street, Sydney, both in New South Wales, Australia. Feb. 24, 1930, No.. 6030. [Class 44.] A clothes-peg is formed of a single piece of wire having an eye 10, Fig. 1, at each end and bent to form two pairs of substantially parallel gripping members, each member being slightly bent outwards at or about its centre to form a concavity in which the clothes-line may lie, thus avoiding slipping of the peg. In a modification, Fig. 5, the ends lie on opposite sides of a central loop, and in this form either end of the peg may be used, but only a single grip is obtained with one end, the other end giving a double grip. The finished peg is galvanized.
Patent GB-1413439-A (GB)
Title: Process for preparing diphenols
IPC: C07C27/00
Filed: 1974-02-11
Abstract: 1413439 Process for preparing diphenols BRICHIMA SpA 11 Feb 1974 [16 Feb 1973] 06117/74 Heading C2C Pyrocatechol and hydroquinone are prepared by hydroxylating phenol with H 2 O 2  in a water containing medium in the presence of dicyclopentadienyl iron (Ferrocene) or a #-ironpseudoaromatic derivative thereof (such as 1,1- diacetyl ferrocane, 1,1-dibenzoyl ferrocene, din-butyl ferrocene or ferrocen-dicarboxylic acid) as a catalyst.
Patent GB-608702-A (GB)
Title: Improvements in or relating to conveyor-belt supporting means
IPC: B65G39/10
Filed: 1946-02-27
Abstract: 608,702. Endless-belt conveyers. MITCHELL, F. G. Feb. 27, 1946, No. 6167. [Class 78 (i)] In conveyers to which a trough section is imparted by sets of idler rollers, each set is composed of an even number of rollers greater than two, each roller being carried by a rigid spindle and each spindle being inclined to the horizontal to ensure that the belt follows its natural curve. The belt 20 rests on the rollers 16, 17, 18, 19 which are supported on pedestals 22, 23, 24 fixed to a base-plate 14 and girders 12. The rollers 16 and 17 are mounted to rotate on spindles 34 and 36 fitted with ball bearings 31 and 32. The outer end of the spindle 34 is closed by a screw cap 38 and the inner end extends to a hole in the bearing block 28 and is secured by a screw 42. An annular space 50 is filled with lubricant which is prevented from escaping by flanged discs. In modifications, two pedestals 22, 24 only are used and each spindle is constituted by a stub shaft with no ball bearings, in which case the spindles are interconnected and lubricant is poured in. When six or more rollers are provided, the rollers are graduated in length.
Patent GB-446130-A (GB)
Title: Improvements in systems for converting direct current to alternating current
IPC: H02M1/22
Filed: 1935-02-26
Abstract: 446,130. Converting. TURTLE, A. C., 736, St. James Street, Montreal, Canada. Fob. 26, 1935, No. 6186. [Class 38 (ii)] [See also Group XXXVII] Commutator switching arrangements. Several load circuits differing in phase are supplied with A.C. from a D.C. source through interrupter mechanism having brushes which are adjusted automatically in accordance with potential variations of the D.C. source so as to maintain constant the average potential applied to each of the load circuits. In the system shown in Fig. 6, three interconnected load circuits A, B, C, are supplied with A.C. from a D.C. supply such as a generator 70 and battery 69 through brushes 23alpha, 23b, 24a, 24b, commutator segments 18, 19, 20, corresponding slip rings 15, 16, 17 and brushes 55, 56, 57. The brushes 23a, 24a are fixed and are connected respectively to the brushes 23b, 24b which are adjustable circumferentially. During each cycle, covered by one revolution of the commutator, the load circuits A, B, C, are connected in turn in various series-parallel relationships so that the voltage and amperage of the current varies, the duration of the relationships being changed by adjustment of the movable brushes 23b, 24b. In a modification an auto-transformer is associated with each load circuit to effect a general change of voltage. The brushes may be adjusted by the speed governor mechanism, shown in Fig. 1, to compensate for variations of the supply voltage. A motor 9 supplied with D.C. drives the commutator and its associated slip rings 15, 16, 17 all mounted on the shaft 6. The fixed brushes are carried by the bracket 22 and the movable brushes such as 23b are adjusted circumferentially by an inner ring mounted in a fixed outer ring 31. The inner ring is adjusted by a bell crank connection 39 to a centrifugal governor 35 also driven by the motor 9.
Patent GB-1015422-A (GB)
Title: Improvements relating to liquid distribution valves
Inventor: SIMPSON KENNETH
IPC: F16K11/16
Filed: 1962-02-19
Abstract: 1,015,422. Valves. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 28, 1963 [Feb. 19, 1962], No. 6355/62. Heading F2V. A liquid distribution valve comprises a body member 1 providing a valve chamber 2, a valve member 10 mounted for rotation within the chamber and provided with at least one channel 11 which is capable, when the valve member is rotated, of connecting successively each of a plurality of ports, such as 5c, 5d and 5e, with at least one other of the ports whereby liquid may be transferred between two or more of the ports, and a portion 20 of the valve member coacting with displaceable sealing members 17 displaced on rotation of the valve member to control further ports 6a, 6b and 6c. The sealing members 17 have enlarged end portions located in pockets in a rubber diaphragm 15, are coupled together by a lever 18 and are slidably mounted in a plastic moulding 14 which also carries springs 13 urging the valve member 10 into engagement with a cover 3 provided with a seal 4 and spring retainer clips 4<SP>1</SP>. The valve may be used in a twin tub washing machine, the member 10 having two channels and being movable to three positions at, angular intervals of 120 degrees to control five ports connected to the wash and spin tubs a supply and drain and the spin tub pump while the three ports controlled by the members 17 are connected to the wash tub, the drain and a discharge nozzle associated with a filter tray. A vent (not shown) prevents build-up of pressure in the control chamber due to liquid finding its way into the space between the parts 10 and 14.
Patent GB-220013-A (GB)
Title: Vane formation for rotary elements
IPC: F03B3/12
Filed: 1923-03-06
Abstract: 220,013. Moody, L. F. March 6, 1923. Impeller blades.-The runners and impellers of hydraulic turbines and pumps are formed with vanes aranged in groups, each group having the same axial disposition and comprising a number of vanes, the leading edges of which are out of alignment. The object of the arrangement is to cause a smooth flow between the vanes and may be obtained by the employment of groups of vanes diminishing in size as shown in Fig. 3, by groups of like vanes, as shown in Fig. 4, and by groups the corresponding vanes of which are differently inclined in adjacent groups. In the arrangement shown in Fig. 9, the vanes V<1>, V<2> constituting the groups are made relatively displaceable by mounting them on separate hub-sections 31, 32.
Patent GB-1434868-A (GB)
Title: Set of shelves
IPC: A47B87/02
Filed: 1974-02-13
Abstract: 1434868 Shelving JALMARI VAARA OY 13 Feb 1974 06497/74 Heading A4B A shelving construction comprises vertically spaced and horizontally aligned shelves 2 supported by vertical walls 1 provided at their upper and lower edges with recesses 7 which receive flat plate portions 5 of connectors having spaced vertical pegs 3 which engage in holes 4 in the adjacent ends of a pair of horizontally aligned shelves 2. The flat plate portion 5 may, as shown, be coplanar with  the axes of the pegs 3. Alternatively Fig. 2, (not shown), the vertical pegs extend from a horizontal flat portion engaged in a corresponding shallow recess in a wall end.
Patent GB-1401916-A (GB)
Title: Precision boring and smooth rolling apparatus
IPC: B23Q11/00
Filed: 1973-02-09
Abstract: 1401916 Boring machine; rolling WILHELM HEGENSCHEIDT GmbH 9 Feb 1973 [26 Feb 1972] 6534/73 Headings B3C and B3M Precision boring and smooth rolling apparatus for use in finishing a bore in a workpiece 27, comprises a cutter head 2 having retractable radially adjustable cutters 3, a roller head 1 whose rollers 9 are arranged to converge radially towards the axis of the apparatus when the latter is withdrawn from the bore of the work and grooves 8 for directing the flow of flushing liquid passing between the apparatus and bore. Cutters 3 are radially adjusted by either a spindle 6, Fig. 1, which has a gear 17 rotatably fixed thereto and meshing with a pinion 19 rotated by a knurled knob 25 meshing with the pinion, or by a conical screw 36, Fig. 2. Rollers 9 are mounted in a cage 10 and are radially adjustable by a nut 11 which when screwed along the threaded part 12 of head 1 moves the rollers along the tapered end of the head, which latter is connected directly to a drive shaft 15. The apparatus is used in conjunction with a fixture 28, 30, Fig. 3, wherein the workpiece 27 is secured and coolant is supplied into the space between the apparatus and the work from a sump 31, by a pump and filter 32, 33. The radial positions of cutters 35, Fig. 2, are adjusted by a blade 42, Fig. 3, carried by the work fixture, this blade projecting into a slot 39 in screw 36 so that when shaft 15 is rotated by hand screw 36 is rotated, and the tapered portion of the screw adjusts the cutters in the radial direction.