baber/WOPTO huggingface dataset:
Patent GB-389710-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H71/58
Filed: 1932-07-16
Abstract: 389,710. Automatic circuit-breakers. TRINKL, H., 46, Perzheimstrasse, and HAUSER, M., F.9-12, Frauentorstrasse, both in Augsburg, Germany. July 16, 1932, No. 20223. [Class 38 (v).] A circuit - breaker with electromagnetic, thermal, and manual release has two pairs of. toggle levers, of which one pair, which is. collapsed on opening the switch, is relieved from load when the switch is closed. In the form shown, depression of the knob 7 causes the member 8 to be lowered so that the toggle links 10, 11 occupy the position shown, whereby the free ends of slides 12, 13; which at their other ends are hinged to the free ends of links 10, 11 respectively, are moved inwards to bow the spring 14 and bring the movable contacts 1 to the closed pos'tion. They are retained in this position by the engagement of lugs on arms 15 of member 8 with a lug on the slide members 12, 13. The pivot 28 of the links 10, 11 is connected by links 25, 26, normally held extended by springs 27, to a pivot 24 on member 8. To open the switch, the member 22 is lowered to release the slide 21 which is drawn to the right by spring 19 and this causes the toggle 25, 26 to be flexed by the projection on the F-shaped member 23 thus raising the pivot 28 sufficiently to release the lug on arm 15. The member 22, which is urged upwards by spring 34, can be lowered by knob 29 or the lever 32 which, in turn, can be operated either by the raising of the insulator 33 on a bimetallic strip 30 or by the armature 4 which is attracted to the core 3 on the passage of an excess current through the contacts and fixed connections. The knob 7 may be replaced by a lever.
Patent GB-937715-A (GB)
Title: Improvements in barbed wire
IPC: B21F25/00
Filed: 1961-06-05
Abstract: 937,715. Barbed wire. CHAIN LINK FENCING Ltd., J. W. ALLISON, and F. T. ALLISON. June 5, 1962 [June 5, 1961], No. 20235/61. Class 45. Barbed wire comprises lengths of plastic covered wire 2 provided with spaced barbs 1 of aluminium wire.
Patent GB-757151-A (GB)
Title: Continuous envelope
IPC: B65D27/10
Filed: 1954-07-12
Abstract: 757,151. Envelopes. WHITMAN, H. M. July 12. 1954 [July 22, 1953], No. 20287/54. Class 146(2) An envelope assembly comprises a series of spaced envelopes each having a panel and a sealing flap, a single continuous backing sheet, and means to secure the envelopes to the sheet individually and detachably and closely adjacent to each other with the sealing flaps of one envelope positioned below the panel of the adjacent envelopes. Each envelope comprises front and rear panels 12, 14, a sealing flap 18, inturned flaps 16, and supplemental flaps 20 extending from the opposite ends of the front or the rear panel and serving to secure the envelope to the backing sheet 22. Flaps 20 are perforated at 21 so that the envelope may be readily removed from the backing. The backing 22 has feed holes 24 and is flat or zig-zag folded. in the latter case the fold-lines 26 are aligned with the fold-lines 19 of the envelopes, and a plurality of envelopes may be attached to each fold.
Patent GB-670743-A (GB)
Title: Improvements in or relating to the preparation of chlorine dioxide
IPC: C01B11/02
Filed: 1949-08-04
Abstract: <PICT:0670743/III/1> Chlorine dioxide is prepared by passing a current of finely divided inert gas or air through a solution of mineral acid other than hydrochloric, equivalent to a sulphuric acid solution of at least 1,200 grams per litre, saturated with metallic chlorate free from chloride ions.  The mineral acid must be non-reducing and non-oxidizing under the reaction conditions.  The chlorate saturated acid may be sprayed into the top of a packed or empty tower, the inert gas entering at the bottom but contact between liquid and gas is preferably effected by circulating the liquid and gas in counter or concurrent.  As shown in the Figure, sulphuric acid of 1,250 grams/litre containing 6.5 grams/litre of sodium chlorate is circulated from the bottom of tower 1, to a reheater 12 and a chlorate saturator 13.  A current of air is passed up the tower through a porous plate 3.  A fraction of the liquid is withdrawn at 5 and passed to a closed crystallizer 6 and thence via a filter 7 to a vat 8 where the sulphuric acid is made up to strength before rejoining the liquid passing to the reheater 12.  Chlorine dioxide is withdrawn at 4.  Specification 377,376 is referred to.
Patent GB-995533-A (GB)
Title: Book cover
IPC: B42D3/00
Filed: 1964-05-15
Abstract: 995,533. Book covers. E. BART GERALD. May 15, 1964, No. 20355/64. Heading B6A. A protective cover for fitting round a paper back book comprises a front part 18, Fig. 3, for covering the front of the book 10, a back part 20 for covering the back of the book, and a part 22 for covering the spine of the book and overlapping the front and back parts, the spine part being coated with pressure-sensitive adhesive 36 by which it is removably attached to the spine 40 of the book and front and back parts 18, 20, and the front and back parts each having a flap 24, 26, respectively, coated with pressuresensitive adhesive by which it is secured to the cover of the book 10. The protective cover is of thin flexible plastic material, and the front 18 and back 20 are reinforced by cardboard panels. Prior to the application of the cover, the adhesive flaps 24, 26 are protected by a thin plastic film. A slot 14 in the spine part 22 reveals the title of the book, and the spine 40 of the book 10 or the slot 14 may be covered by a sheet 46 of transparent plastic film. The protective cover shown in Fig. 4 is for application to a book 10 having no front cover, and with some loose pages. In this case, the front part 18 has two extension flaps 48, 50, the flap 48 being folded back over the front 18, and the flap 50 being gummed to the first page of the book. The open pocket 52 between the parts 18, 48 can receive any loose pages of the book. An opening 54 in the flap 48 allows matter written &c. on the panel 30 of the front 18 to be seen. The top edge of the book 10 can be protected from dust by means of a waterproof plastic sheet secured on the flap 48. A carrying handle for the protected book may be secured to the protective cover, by securing thereon a cord or cords by adhesive tapes, such that carrying loops are formed beyond the front edge of the book.
Patent GB-863722-A (GB)
Title: Flourine-containing organosilicon compounds
IPC: C08G77/00
Filed: 1959-06-15
Abstract: 863,722. Fluoro-organosilanes and siloxanes. MIDLAND SILICONES Ltd. June 15, 1959 [July 16, 1958], No. 20434/59. Class 2(7). The invention comprises silanes of the formula:- where R is a monovalent hydrocarbon radical free from aliphatic unsaturation, Y is chlorine or bromine or an OR<SP>1</SP> radical where R<SP>1</SP> is alkyl or aryl, x is I or 2, y is 0, 1, 2 or 3, and x+y is not greater than 4, and also homo- or co-polymeric siloxanes containing units of the formula:- where z is 0, 1 or 2 and x+ z is not greater than 3, any other units being:- where R<SP>11</SP> is a monovalent hydrocarbon radical or a chlorinated or brominated derivative thereof and n is 1, 2 or 3. The silanes wherein Y is Cl or Br are prepared by reacting the olefin with a silane RyHx Si X 4 -x-y where X is Cl or Br. A catalyst such as chloroplatinic acid or platinum on charcoal may be used. The compounds wherein Y is OR<SP>1</SP> may be prepared reacting the halosilane with a sodium alcoholate or phenolate. The radicals R include alkyl, aryl, aralkyl, alkaryl and cycloaliphatic. The siloxanes are prepared by conventional methods. They include cyclic trimers and tetramers and higher polymers from which rubbers may be obtained. The silanes which contain Y radicals are useful for rendering ceramics, masonry and textiles water-repellant. Those containing no Y radicals can be used as lubricants, hydraulic fluids or as additives to organosiloxane fluids. Examples are given.
Patent GB-1333842-A (GB)
Title: Antenna radiators
IPC: H01Q9/42
Filed: 1971-04-19
Abstract: 1333842 Aerials LICENTIA PATENTVERWALTUNGS-GmbH 19 April 1971 [12 Feb 1970] 20477/71 Heading H4A In a wideband aerial arrangement a folded monopole is fed through an open-circuited twoconductor transmission line with which it is in series. The electrical length (vl) and the impedance (n<SP>2</SP>Zs) of the said line 10, Fig. 3, are made the same as those of an open-circuited two-conductor transmission line which is a component of the equivalent circuit of the folded monopole. As described, a folded monopole which is mounted on a ground plane 1, Fig. 5, comprises two conductor parts 4, 5 connected together at the top by a conductor part 6. In series with the monopole is an open-circuited line which is constituted by an auxiliary conductor 10 in conjunction with the conductor parts 4, 6. The auxiliary conductor 10 is spaced by insulating supports 11, 12, 13 at a distance which is less than the width of the part 4. In order to reduce the physical length of the monopole without affecting its electrical length, the width of the conductor part 5 is increased upwardly from the ground plane 1, and extra capacitance is provided by reducing the distance between the conductor parts 4, 5 near said ground plane. The same effect may also be obtained by placing suitable dielectric material between the two conductor parts. A folded dipole may be formed from two of the folded monopoles as described, and an omni-directional turnstile aerial may comprise a plurality of the aerial arrangements.
Patent GB-467222-A (GB)
Title: Improvements in water tube boiler furnaces
IPC: F23M5/02
Filed: 1936-07-24
Abstract: 467,222. Furnace arches. STRAND, T. A. R., BLOMQUIST, U. O., and ALBIHN, H. F. July 24, 1936, No. 20558. [Class 51 (i)] In a grate-fired or burner-fired water-tube boiler furnace, an arch impenetrable to the combustion gases is arranged below or in place of the usual ignition arch or, in the case of burner firing, above the point of entry of the fuel, the arch comprising a number of water tubes 10 belonging to the circulation system of the boiler and a number of metal elements 19 for preheating secondary air, the elements being for their major part protected against direct heat radiation by insulation 15 or by the tubes 10 alone if these are sufficiently close together. By this arrangement comparatively large masses of brickwork exposed to direct heat radiation can be dispensed with. The invention is shown applied to a furnace fired from a grate 7 and having an upper drum 1, tube system 2, 3, 4, superheater 5 and economizer 6. The air preheating elements 19 are divided into two air chambers which are fed by a fan 22 under the control of valves 33 and at their inner ends are provided with nozzles 25 projecting downwardly on to the grate between the tubes 10. The tubes 10 may be arranged transversely of the grate and in this case the arch may extend the whole length of the grate at the sides of the furnace.
Patent GB-515132-A (GB)
Title: Improvements in silencers for gaseous currents
IPC: F01N1/08
Filed: 1938-07-12
Abstract: 515,132. Silencers for gaseous currents. BURGESS BATTERY CO. July 12, 1938, Nos. 20634 and 20635. Convention dates, July 14, 1937, and July 1, 1938. [Class 7 (ii)] A retroverted-passage silencer comprises a casing 35, Fig. 6, with partitions 42, 43, 44 and end walls 36 and 37 formed with inlet and outlet openings 38 and 39, the partition 42 having two eccentric openings 49, 50 fitted with perforated tubes 51, 52 leading into the compartment 46, while a central perforated tube 53 is connected to the outlet 39 and passes through the other partitions 43, 44 into the chamber 46. The tubes may be welded together. The chambers have a resonating effect, and one or more of them may be packed with sound-absorbing material such as metallic or rock wool, exfoliated vermiculite, asbestos fibre,.or pumice, or other ceramic aggregates, loose or bonded with adhesive. In a modification, the gases flow in the reverse direction, entering through the central perforated tube. In another form, the chamber is divided into two by a central partition, through which pass a number of eccentric perforated tubes opening at opposite ends into the two chambers, and connected to ' central perforated tubes projecting one into each chamber from the inlet and outlet openings respectively. Fig. 11 shows another form with end chambers formed by partitions 95, 97, which have eccentric openings, fitted as shown with perforated tubes 96, 98. In Fig. 13, a central inlet tube 105 is surrounded by an open-ended perforated chamber 106 with closed end 107 which causes the gases to flow back into the outer annular passage 110 leading to the outlet 104. The openings in the perforated tubes may occupy from 0.01 to 10 per cent. of the area of their walls. The outer casing may be oval br angular.
Patent GB-662022-A (GB)
Title: Adjusting mechanism for a temperature regulator
IPC: G05D23/12
Filed: 1949-08-09
Abstract: 662,022. Thermally-actuated valves. ROBERTSHAW-FULTON CONTROLS, Ltd. Aug. 9, 1949 [Sept. 13, 1948]. No. 20677/49. C!ass 135 [Also in Group XIII] In a temperature regulator, particularly for the interior of motor vehicles, the response of the thermostat is varied by moving a resilient load applying member to act at various points along a movable track operatively connected to the thermostat. The regulator comprises a housing 10 having the passage of heating medium from an inlet 18 to an outlet 19 through a port 15 controlled by a valve 27 connected to a bellows and tube thermostat 21, 32. A valve stem passes through a sealing bellows 33 and has a universal joint with a link 37 connected through a rod 49 to two arcuate tracks 45 pivoted at 42. A push-pull Bowden wire moves a U-shaped member 58 about its pivot 55 so that a roller 48, carried in slots 60 in the member and loaded by springs 62, can be moved to any position on the track in order to vary the moment of the tension of the spring about the pivot 42 and thus the load on the thermostat. The track is substantially concentric with the pivot 55 and, in the position shown, the slot 60 is concentric with the pivot 42. By forcing the roller against the end 47 of the track the valve may be positively closed.
Patent GB-726498-A (GB)
Title: Improvements relating to electric arc furnace control systems
Inventor: GUNTON FRANK DE LA ROCHE
IPC: H05B7/152
Filed: 1953-07-27
Abstract: 726,498. Automatic control systems for arcs, BRITISH THOMSON-HOUSTON CO., Ltd. July 27, 1953, No. 20776/53. Drawings to Specification. Class 38 (4). The invention is applied to electric arc furnace control systems in which direct voltages, produced through copper-oxide rectifiers in dependence on A.C. are voltage or current, are arranged in opposition to control a D.C. servomotor, e.g. through a magnetic amplifier as in Specification 694,745, moving a furnace electrode to maintain a constant arc current, a tap changer associated with a transformer supplying the electrode being ganged to a rheostat in the voltage responsive circuit so that the voltage dependent on arc voltage is independent of the tap chosen. The following arrangements to produce an arc current dependent on the setting of the tap changer are described: (a) a further rheostat ganged to the tap changer may be substituted for that in the voltage responsive circuit at will by the operation of a change-over switch; (b) an additional rheostat ganged to the tap changer may -be introduced in shunt to the arc current responsive circuit at will by the operation of a change-over switch; (c) an additional rheostat ganged to the tap changer may be introduced in shunt to the arc voltage responsive circuit at will by the operation of a change-over switch; (d) the rheostat in the voltage responsive circuit may be arranged to produce a voltage dependent on the setting of the tap changer. Specification 640,633 also is referred to.
Patent GB-1180285-A (GB)
Title: A Method and a Device for Controlling Supply of Heat
Inventor: CHRISTIANSEN JORGEN WITTEN
IPC: F24D10/00
Filed: 1967-05-05
Abstract: 1,180,285. Automatic temperature control systems. J.W. CHRISTIANSEN and M. CHRISTIANSEN. May 5, 1967 [May 7, 1966], No.20907/67. Heading G3R. The flow valve 21 of a space heating installation is periodically closed, the ratio between open and closed periods being determined by interval and/or external and heating fluid sensors. The sensors may be of the bulb type having an expandable fluid with output members coupled mechanically, or the sensors may be of electrical type connected in a bridge circuit. The ratio may be developed by a synchronously driven cylindrical cam or by an electrical CR tuning circuit.
Patent GB-730560-A (GB)
Title: Improvements in or relating to combined prime mover and hydraulic pump units
Inventor: ORLOFF GEORGE
IPC: F01B3/00
Filed: 1951-09-05
Abstract: 730,560. Fluid-pressure engines; valve gear. BRITISH MESSIER, Ltd. Aug. 27, 1952 [Sept. 5, 1951], No. 21024/51. Classes 122 (2) and 122 (3). [Also in Group XXVIII] In a reciprocating pump unit, a number of motor and pump cylinders are arranged in parallel around an axis and each motor piston 15 is connected to a pump piston 16 and the motor pistons bear on the swash plate 17 mounted on a shaft 20 carrying a disc distributing valve 21 controlling the supply and exhaust of steam or gas to the motor. Each motor cylinder has a port 13 leading to a face 14 and the valve is backed by a spring-loaded ring 25 and provided with a supply port 27 and a balancing port 28 and the exhaust takes place directly from the cylinders to the exhaust passage 26. The pump delivery valves are loaded by radial arms extending from a spring plate secured to the housing. In a modification the valve is in the form of a cylindrical ported valve.
Patent GB-695292-A (GB)
Title: Improvements in or relating to the testing of thermionic valves
IPC: G01R31/24
Filed: 1950-08-25
Abstract: 695,292. Testing thermionic valves; caps and holders for thermionic valves. ZIEGLER, W. Aug. 25, 1950 [Aug. 25, 1949; June 27, 1950], No. 21067/50. Classes 37 and 38 (i). Apparatus for testing a wireless valve whilst working on its circuit comprises a device fitting between the valve and the connections to the remainder of the circuit having contained entirely within the device interconnections between the valve and the connections to the remainder of the circuit, at least one of these interconnections having means to provide for the inclusion of an external measuring device within the interconnection without interrupting the working of the valve in its circuit. As shown in Fig. 1 an adaptor plug comprises a central section 3 having at its upper end a socket section 4, into which the valve 5 fits and at its lower end a valve base 2 which fits into the socket in the set. In the Section 3 is a series of apertures 26 into which plugs 29, 30 connected to measuring instruments can be inserted. Opposite each aperture is a pair of spring contacts 27, 28, Fig. 4, which normally make contact with each other but are separated by the insertion of a plug. Each contact in the valve base 2 is connected through one of the pairs of contacts 27, 28 to the corresponding contact in the socket section 4, the apertures 26 being numbered so as to identify the contacts to which they are connected. A plug 29 connected to a voltmeter has a solid pin which maintains contact between the springs 27, 28, and is connected to a single wire 6. A plug 30 connected to an ammeter has a pin consisting of two conductng portions separated by an insulating portion and connected to the ammeter through a pair of leads 7, 8 so that the ammeter is connected between the springs 27, 28 and therefore in series between corresponding contacts in the sections 2, 4. The apertures 26 are shaped to prevent reversal of the plugs. A member 57 also containing a pair of springs 27, 28 and having an aperture 26, is connected to a screened lead 55 and cap 56 to replace the normal valve lead. The section 2 is made rotatable through half a turn to facilitate insertion of the plugs, the connecting leads between the sections 2, 4 being flexible for this purpose. With certain valves some of the contacts in the sections 2, 4 are not in use and adaptors may be provided having the normal contacts for such valves. Fig. 10 shows a modified valve base having a casing 113 of synthetic plastic and a base-part 114 carrying an orthodox arrangement of pins 115 carrying resilient contacts 116. Apertures 120 are arranged around the casing 113, the plugs 121 being inserted between the spring contacts 116 and the valve contacts 118.
Patent GB-392023-A (GB)
Title: Process for the manufacture of moistureproof opaque or transparent paper
IPC: D21H17/25
Filed: 1932-07-27
Abstract: A plastic mass for incorporating in paper is made from cellulose esters and/or ethers together with plasticizers and water-repellant substances, e.g. rubber, oils, fats and waxes of mineral, vegetable or animal origin, derivatives thereof, e.g. hydrogenated, oxidized and vulcanized oils, free fatty acids &c., the mass being made by gelatinization and mechanical kneading, e.g. in a jacketted apparatus, with small quantities of organic solvents; dyestuffs, resins, pigments, fillers, &c. may also be incorporated.  The temperature is kept below the boiling point of the solvent until the mass becomes homogeneous, when it is increased to drive off the solvent which is replaced by water &c. which is then driven off at higher temperature, the remaining mass being fritted together to form a soft paste which is kneaded and cooled, the mass falling as powder, which is sifted and dried. Paper pulp may be added during kneading. In an example, the percentages are ethyl cellulose 65, dibutylphthalate 25, castor oil 10.
Patent GB-1002768-A (GB)
Title: An improved cigarette holder
IPC: A24F13/04
Filed: 1962-06-01
Abstract: 1,002,768. Cigarette holders. E. G. BRIDGMAN. May 30, 1963 [June 1, 1962], No. 21231/62. Heading A2M. A cigarette holder comprises a first tubular portion 1 having a section 3 of reduced diameter and over which a second tubular portion 4 of approximately the same external diameter as a cigarette and of non-irritant material, e.g. rice paper, is fitted. If desired, the portion 1 may be provided with a hole which can register with a further hole in a sleeve rotatable over the portion 1. The length of the second portion 4 is not greater than 1“ inches and preferably between ¢ and ¥ inch.
Patent GB-726500-A (GB)
Title: Improvements in rubber hydrochloride film
IPC: C08K5/06
Filed: 1953-07-31
Abstract: The passage of water vapour through rubber hydrochloride film is hindered by adding a non-volatile dialkyl ether, preferably one which is solid at air temperature.  The ethers preferably have at least 12 carbon atoms in each alkyl group, and specified compounds are ditetradecyl ether, dicetyl ether, and dioctadecyl ether. From 1 to 1.5 per cent. of ether may be used based on the weight of rubber hydrochloride.  Plasticizers such as p  2-ethylhexyl-diphenyl phosphate, tricresyl phosphate, triethyl phosphate, tributyl phosphate, triphenyl phosphate, tributoxyethyl phosphate, trimethoxymethylphosphate, trimethoxyethylphosphate, tributoxypropyl phosphate, dibutyl phthalate, dihydromethyl abietate, diisobutyl adipate, diisooctyl adipate, octyldecyl adipate, dioctadecyl adipate, di (2-ethylhexyl) adipate, dibutyl sebacate and dipropyl sebacate may be added.  In addition the solubility of the ethers may be increased by adding compatibilizers such as hydrogenated terphenyls, chlorinated paraffins, or coumarone indene resin.