baber/WOPTO huggingface dataset:
Patent GB-1110686-A (GB)
Title: Projectile fuse
IPC: F42C9/04
Filed: 1966-03-16
Abstract: 1,110,686. Projectile fuzes. INDUSTRIAL HOLDING ESTABLISHMENT. 16 March, 1966 [18 March, 1965], No 11609/66. Heading F3A. The disclosure is similar to that of Specification 1,110,685, but the claims differ in scope. In an additional modification of the means to prevent rotational setting of the cap 2 into the instantaneous or delayed firing positions in the event that the rack 12 has inadvertently reached the armed position, a stud (67), Fig. 16 (not shown), on the rack sets back a pin 70 in the base (1) into a locking recess (73) in the cap (2). The axial dimensions of the cap are reduced.
Patent GB-978895-A (GB)
Title: A conveyor device for transporting objects one by one
Inventor: GIESSEN CORNELIS JAN VAN DER
IPC: B65G47/14
Filed: 1961-03-30
Abstract: 978,895. Endless conveyers. BRUYNZEEL SCHAVERIJ N.V. March 30, 1961, No. 11710/61. Headings B8A and B8S. Planks in a heap are conveyed one-by-one to a machine &c. (not shown) by an endless conveyer 1 which is constrained by chainwheels 4-8 to form with sides 10 a hopper. Slats 2 extending transversely of and secured to the series of laterally spaced chains forming the conveyer 1, engage a respective plank and push it past a station 13. At the latter, a pusher 17 is periodically reciprocated pneumatically or by means of a cam-shaft so as to displace any plank which is engaged by a plank already in engagement with a respective slat 2. The downwardly sloping run of the conveyer (to the left of Fig. 1) may alternatively be disposed horizontally (Fig. 3, not shown).
Patent GB-557344-A (GB)
Title: Improved device for levelling or stabilizing tables, stands, benches, scientific instruments and the like
IPC: F16M11/18
Filed: 1942-08-21
Abstract: 557,344. Furniture, stabilizing devices for. ROLPH W. E. Aug. 21, 1942, No. 11790. [Class 52 (iii)] A levelling and stabilizing device for the legs of tables and other stands comprises a cup member 1 slidable within a member 3 which is provided with a cover against which bears one end of a lever 12. A stem 10 is attached to the member 1 and passes through an aperture in the cover and into a tube 11 by which the device is secured to the table &c. leg. A spring 16 bears against the member 1 and the lever 12 which has an aperture surrounding the stem 10 the arrangement being that on depression of the lever the weight of the table or the extension of the spring 16 adjusts the two telescopic members 1, 3 and they are locked by releasing the lever which thereupon binds on the stem 10. In a modification the stem 10 is a short tube and the tube 16 is replaced by a short tube secured to the lower side of the cover 7 and entering the tube. This enables the device to have a flat top for securement to the table &c. leg. and by crossed flexible ties 11, preferably folding. The members 8, 9 may be locked in the erected position by means such as slidable bolts 12, Fig. 3. The legs are preferably telescopic and are fitted with ball jointed ground pads 7. The pairs of legs maybe of unequal lengths and spread outwards and tied by folding crossed flexible members 13, 14, Fig. 1. The extension tubes 2, 3 are supported by hinged stays 16 having three positions of adjustment in racks 15 on the legs. The flexible ties may be of thin steel strip. The extensions 2, 3 may be connected at their outer ends by tubes 19 hinged to one member and detachably connected to the other.
Patent GB-779643-A (GB)
Title: Improvements in tractors
IPC: A01D19/14
Filed: 1954-04-23
Abstract: 779,643. Tractors. MASCHINENFABRIK SCHMOTZER GES., and WEDEL, O. April 23, 1954 [April 25, 1953], No. 11872 /54 Classes 79(1), 79(2), 79(4) and 79(5). In a tractor having the front axle carrying an engine and gear box unit 2 the rear axle can be driven through a propeller shaft 21 coupled to front and rear stub shafts 19, 19a, a power take off shaft 23 being provided with front and rear stub shafts 20, 24 and the distance between the shafts 19a, 24 being invariable. As shown the shafts 19a 24 are supported by a differential gear housing 34 of a rear axle assembly 5 detachably connected at 6 to longitudinal frame members 3, 4. In a modification, Fig. 4, the stub shaft 19a is connected by pulleys and belts 31 to the shaft 24 and an extension 24a of the shaft 24 drives a pump 36 supported by a bracket 35 from the housing 34. Clamped to the members 3, 4 is a lever 30 which is driven hydraulically or electrically and raises or lowers an implement arranged between the tractor wheels 1, 22. In Fig. 5 (not shown) the implement is a potato digger which is driven directly from the shaft 23. The rear axle assembly 5 can be replaced by an assembly of different construction. The detachable connections 6 for the assembly comprises clamping members 8d . . 8g, the members 8d, 8e being secured to the fixed portion 8b of a turntable. The rotatable portion 8a of the turntable is secured to the assembly 5 thus admitting the turning or the assembly to the position shown in broken lines in Fig. 2. Rotation of the assembly is controlled by a wormwheel segment 9 secured to the differential gear 7 and meshing with a worm 10 mounted on the member 8e, the worm 10 being rotated by wheels 12, 13. The wheel 12 is under the control of the driver and the wheel 13 by an operator standing on a footboard 15 of a seed sowing machine 16. A stub frame 27 extending rearwardly from a gearbox 18 carries a steering column 27 and control pedals, a driver's seat 14 being mounted on the column 27. Specification 779,644 is referred to.
Patent GB-1164088-A (GB)
Title: Improved apparatus for use in the Construction of Concrete Lined Tunnels
Inventor: BERGSTROM ERIK HERMAN
IPC: E21D11/10
Filed: 1968-03-12
Abstract: 1,164,088. Tunnels; tunnel shuttering. I. H. BERGSTROM. 12 March, 1968, No. 11949/68. Headings E1F and E1S. In apparatus for the construction of a concrete lined tunnel comprising a shield 14 connected to shuttering 17, 19, 16, holes are formed in the part 19 for the introduction of longitudinal reinforcing 27 and the part 17 is relatively movable to the rest of the .shuttering for the introduction of circumferential reinforcing 28. After the last lining section 26 has set jacks 21 fixed to a shuttering flange 20 are extended to advance the shield, jacks 21a fixed to the flange, extending through the part 19 and having plates 29 engaging the section and extended to advance .the shuttering, and jacks 21a are retracted and jacks 24 connecting the part 17 to the rest of the shuttering are extended to push the part 17 rearwardly so that the reinforcing may be placed in the cavity between the section and the part 19. The jacks 24 are retracted to close the cavity and grout is introduced into the cavity, vibrators 25 being operated. The gap between the roof the tunnel and the shield may be grouted. In a modification the rear of the shield has an internal flange, the plates 29 are dispensed with and the shuttering abuts a reaction member fixed to the lining.
Patent GB-186953-A (GB)
Title: Improvements in and relating to electric power transmission and braking systems
IPC: B60L7/12
Filed: 1921-04-26
Abstract: 186,953. British Thomson - Houston Co., Ltd., (General Electric Co.). April 26, 1921. Addition to 180,426. Regenerative systems. - A group of motors is arranged for regenerative braking by connecting the armatures A to E in series with a resistance 11 across the line, and the armature of another machine F as an exciter in a closed loop con. taining a resistance 12 and the field windings a to f of all the machines. An equalizing resistance 14 is connected as shown between the two circuits. In a modification two exciter machines are connected as shown in the parent Specification.
Patent GB-200267-A (GB)
Title: Improvements in or relating to railway signalling systems
IPC: B61L23/16
Filed: 1922-04-28
Abstract: 200,267. Automatic Telephone Manufacturing Co., Ltd., and Hudd, A. E. April 28, 1922. Electrical systems, automatic.-Alternating or pulsating unidirectional currents generated from a battery or batteries 10, 14 and a vibratory contact-device 5 at a frequency of about three per second are supplied to the track rails 1, 2, and a relay system at the distant end of the section is sluggish in release so as to maintain closed the local circuit during the interval between successive pulses. The armature 5 of the electromagnet 4 is loaded so as to be vibrated at the desired frequency and a relay 13 in series with an electrolytic valve 12 as described in Specification 160,589 vibrates its armature in unison with the impulses. The device 12 protects the relay against direct currents of long duration. For unidirectional pulsations a biassed polarized relay may be used. The armature of relay 13 closes alternately the circuits to the relays 17, 20 each of which is shunted by a resistance 18, 21 which causes it to release its armature after a time interval which is longer than the interval between successive pulses of current over the track. Hence contacts 15, 19 are simultaneously closed and the relay 20 is energized continuously to control the local circuits. Specification 163,418 is. referred to.
Patent GB-672252-A (GB)
Title: Improvements in bourdon tubes and like resilient, pressure responsive, tubular elements
IPC: G01L7/04
Filed: 1949-05-05
Abstract: 672,252. Pressure gauges. HARDWICK, H. B., and BOOTH, C. H. May 2, 1950 [May 5, 1949], No. 12007/49. Class 106 (ii). A resilient pressureresponsive element of the Bourdon type arranged to flex transversely to its length under changing internal pressures comprises a strip - like formation having its opposed walls secured together intermediate of its width, at frequent intervals or substantially continuously along its length, to limit the separation of the walls of the element when under internal pressure. In Fig. 2, the element comprises two thin strips of weldable stainless steel or of beryllium-copper, secured face to face and joined at their edges 4 by brazing or resistance welding, the strips being also joined together between their margins at frequent intervals by spot welding 5 along three longitudinal rows, the welds in one row being longitudinally staggered in relation to those in adjacent rows. The free end of the element is closed by a block 9, Fig. 1, having air-escape holes closed by screws 11. Aluminium foil is inserted into the ends of the element before soldering it to the block 9 at one end and to a holder 8 at the other, the aluminium preventing the ends of the element from becoming sealed by the solder. The element 1 may have an electric strain indicator 14 on its surface. Fig. 5 is a cross-section of an element made of three strips 20, 21 and 22, secured together along their edges and intermediate of their edges by spot welding as described above. Two pressures, to be compared, are admitted between the strips 20 and 21, and the strips 21 and 22 respectively. Instead of being curved, the elements may be initially straight. Specification 700,972 is referred to.
Patent GB-124140-A (GB)
Title: A New or Improved Apparatus for Conveying Cash from Shop Counters to a Cash Desk or Office.
Inventor: EDWARDS WILLIAM ALFRED
IPC: B65G9/00
Filed: 1918-07-24
Abstract: 124,140. Edwards, W. A. July 24, 1918. Mechanical dispatch apparatus.-The lower and upper wires a, b, upon which the cash carrier d runs are attached by means of spiral springs e, f, respectively to a fixed bracket k, and to a collar m which slides upon an inclined pillar n. The collar m is slid upwards, to separate the wires a, b and so propel the carrier, by a cord p, and is drawn back to its initial position by elastic cord t or forced back by spiral springs. Recesses 4 behind curved extensions w on the carrier engage spring-controlled pivoted jaws 2<a> to retain the carrier at either end of its travel. The track slopes up to the cash desk, and on the carrier being released from the jaws 2<a>, it runs back by gravity to the counter. The inclination of the pillar n is such that, as the collar m is raised, the tension in the wire b is lessened.
Patent GB-585795-A (GB)
Title: Improvements in or relating to organic plastics having a hardened surface and process for forming same
IPC: G02B1/04
Filed: 1942-08-26
Abstract: Surfaces of cellulosic plastic material, e.g. cellulose acetate or acetate-butyrate, are hardened by swelling the surface with a polymerizable swelling agent, introducing into the swollen surface a monomer which will polymerize to form a material harder than the cellulosic material and polymerizing both the swelling agent and the polymerizable material.  The swelling agent and the polymerizable material may be applied simultaneously, the mixture being preferably pre-heated, e.g. at 150 DEG  F., before application. Suitable swelling agents are methacrylic acid, methyl vinyl ketone or methyl isopropenyl ketone.  The polymerizable material may be allyl methacrylate, methyl methacrylate and cyclohexyl methacrylate or mixtures thereof.  Benzoyl peroxide may be used to accelerate the polymerization, which may be effected by heat or ultra-violet radiation.  Pressure may be applied during polymerization by moulds or press-polish plates, e.g. of glass. The invention may be applied to the production of windows, lenses and light polarizers comprising a sheet of transparent plastic material comprising oriented particles bonded between a pair of sheets of cellulosic material.  The Specification as open to inspection under Sect. 91 comprises also the use as swelling agents of non-polymerizable substances such as acetone and acetic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-716872-A (GB)
Title: Process for the production of varnish raw materials
IPC: C08L25/14
Filed: 1951-05-23
Abstract: Varnish raw materials are obtained by mixing a polymeric aromatic vinyl compound, e.g. polymers of styrene, a -methyl styrene, nuclear halogenated styrene, vinyl naphthalene or copolymers of styrene with chlorinated styrene, acrylic and methacrylic and maleic acid esters with an aromatic vinyl-drying oil-or drying oilmodified alkyd copolymer.  Linseed, wood, dehydrated castor or oiticica oil may be used and modified by phthalic, adipic, or maleic acid to form alkyds which may be modified with semi-drying oil fatty acids such as sunflower kernel, coconut, and whale oils.  Solvents, e.g. benzene, toluene, xylene, methylene chloride, butyl acetate, glycol monoethyl ether monoacetate, acetone, methyl ethyl ketone, and cyclohexanone may be present and the polystyrene added after or during the preparation of the styrenated oil or alkyd.  Examples show the preparation of linseed oil- or dehydrated castor oil fatty acid glyceridestyrene copolymers and linseed-or dehydrated castorphthalic anhydride-glycerine alkydstyrene copolymers which are then mixed with polystyrene.  The latter alkyd copolymers may also include additional whale oil, and in a modification the mixture may be refluxed with monomeric styrene and polystyrene.  Pigments, e.g. titanium white may be added to give coloured varnishes.
Patent GB-686028-A (GB)
Title: Improvements in or relating to tubulous forced-flow heat exchangers
Inventor: DAVY CHRISTOPHER HUMPHREY
IPC: F22D1/32
Filed: 1950-05-15
Abstract: 686,028. Heat-exchangers. BABCOCK & WILCOX, Ltd. May 15, 1951 [May 15, 1950], No. 12118/50. Class 64 (iii), [Also in Group XVIII] In a header 3 for a tubular forced-flow, heat-exchanger, such as an economiser, a hand-hole closure 7 of known type, which is pressed against its jointed seat 13 by fluid pressure within the header, is provided with screening means such as a plate 16 within the header to impede heat transfer to the closure. Leakage from the closure joint 13, due to sudden changes of temperature in the closure when steam from a pocket in the opposing pipe 1 discharges on to the closure, is thereby avoided. As shown, the plate 16 attached to the closure has projecting edges 17 to enclose a space between plate and closure.
Patent GB-500327-A (GB)
Title: Improvements in or relating to moulds for ingots
IPC: B22D7/06
Filed: 1938-04-22
Abstract: 500,327. Ingot moulds. SANNODO, T. April 22, 1938, No. 12181. [Class 83 (i)] An ingot mould has two cavities 2 of square horizontal section arranged diagonally. The external walls 6 in this section may be parallel to the inner walls with the corners rounded or may be circular as shown. Specification 6641/92, [Class 82], is referred to.
Patent GB-1425790-A (GB)
Title: Methods of regulating and monitoring a heating installation including a gas burner for room heating and for providing hot water for consumption purposes
IPC: F23N1/08
Filed: 1974-03-19
Abstract: 1425790 Automatic control of temperature LANDIS & GYR AG 19 March 1974 [22 March 1973] 12193/74 Heading G3R [Also in Division F4]  A gas fired central heating system which also provides a hot water supply includes a control device which proportions the quantity of heat supplied between the hot water supply tank and room radiators so that the full burner output can be used until no longer required by the combined load. In the arrangement shown controllers, which may be thermostats, having the temperature characteristics shown are provided in the rooms R, the hot water tank B and the boiler itself K and these control the transistors T1-T4 to control the three way valve 14 and gas burner control valve unit 4. A flame failure device FW is provided having contacts f 1 , f 2 , shown in the state they assume when flame is detected, to control the burner ignition circuit Z and the energization circuit of relay AR. In operation the transistors Tl, T3 are arranged to be conductive when there is a demand from the room or hot water tank and if the boiler temperature is below the required level, transistor T4 is made conductive which operates the control element 11 to close contact 9 and operate relay AR to start circulating pump 12, open gas valve 5 and energize the ignition circuit Z. The three way valve 14 diverts the whole flow of water from the boiler to the hot water tank when windings 30, 31 are equally energized but as the boiler temperature rises transistor T2 conducts to reduce the current in winding 31 and thus the valve allows some water to the room heating radiators. By the action of controller B on transistor T1 when the hot water is heated, the current in windings 30, 31 is reduced progressively until transistor T1 is non-conductive when all water flows to the radiators and controller R operates through transistor T3 to control valve unit 4. The arrangement is provided with an on/off mode of operation when small quantities of heat are demanded. The connection 46 to transistor T4 ensures at all times that a maximum boiler temperature causes shut-down of the control valve unit.
Patent GB-377300-A (GB)
Title: Improvements in or relating to the removal of ammonia and hydrogen sulphide from gases
IPC: C10K1/10
Filed: 1931-04-25
Abstract: <PICT:0377300/III/1> In the removal of ammonia and hydrogen sulphide from gases by multi-stage washing with polythionate solution and regeneration by means of sulphurous acid, the whole or a part of the ammonia is withdrawn from the gases prior to the first washing stage being returned to the gas stream immediately before the last washing stage and the regeneration is effected by diverting a portion only of the stream of solution from the initial washing stage, in which an excess of hydrogen sulphide over ammonia is present, the liquor returning from regeneration being first utilized in an intermediate washing stage, then in the last washing stage and finally returned to the first washing stage.  A portion of the ammonia is separated from the gas by coolers 1, 2.  The ammonia water is separated from tar in a separator 3 and is distilled in a still 8 the ammonia obtained being led directly to a washer III. The gas is forced by a blower 9 through a cooler 10 and polythionate washers I, II, III which are irrigated with solutions from the corresponding containers BI, BII, BIII.  A part of the solution containing principally thiosulphate passes from container BI to a container BIV, the solution in which is regenerated by treatment by sulphur dioxide in a washer R.  An equal quantity of regenerated solution flows from container BIV to container BII, from container BII to container BIII, and finally back to container BI.  Free sulphurous acid, present in the liquor coming from regeneration, is removed by the action of hydrogen sulphide in the ammonia free gas in washer II before coming in contact with ammonia containing gas in washer III.  Excess liquor containing thiosulphate and polythionate flows from container BIV into a reservoir V and is boiled to produce ammonium sulphate and sulphur. The water is replenished by that which leaves the ammonia still with the ammonia in a gaseous state.  The circulation is preferably so adjusted that the liquor flowing into the reservoir V has a thiosulphate : polythionate ratio of 2 : 1.
Patent GB-962893-A (GB)
Title: Catalytic treatment of exhaust gases
IPC: B01D53/94
Filed: 1963-03-28
Abstract: A catalyst comprising a support having a surface area greater than 100 sq. m./gm. carrying 2-20% CuO, 0,0025-0,1% Pd and 1-10% Cr2O3 is used to oxidize exhaust gases from I.C. engines.  The support may be Al2O3, SiO2-Al2O3, SiO2-MgO or an acid-treated clay.  Particularly useful is g -Al2O3 in nodular form having a Cr2O3 surface and a size of 3-10 mesh. Cuprous, cupric and palladium salts may be used in the preparation of such catalysts if desired in the presence of tartaric acid. Examples are given.
Patent GB-709601-A (GB)
Title: Insecticidal compositions containing tetra-alkyl pryophosphates
IPC: C07F9/09
Filed: 1952-05-16
Abstract: Tetra-alkyl pyrophosphates, e.g. tetra-ethyl pyrophosphate, are rendered resistant to hydrolysis by incorporating acetic anhydride. The acetic anhydride may, for example, be present in an amount of from 1 to 75 per cent by weight based on the pyrophosphate. Tetra-ethyl pyrophosphate may be prepared as a crude product (40 per cent pure) by reacting five molecular proportions of triethyl phosphate with one molecular proportion of phosphorus oxychloride, or by reacting four molecular proportions of triethyl phosphate with one molecular proportion of phosphorus pentoxide.  A reaction product containing about 15 per cent tetra-ethyl pyrophosphate may be obtained by reacting three molecular proportions of triethyl phosphate with one molecular proportion of phosphorus oxychloride or by the reaction of two molecular proportions of triethyl phosphate with one molecular proportion of phosphorus pentoxide.  Specification 668,522, [Group VI], is referred to.ALSO:An insecticidal composition comprises a tetra-alkyl pyrophosphate and acetic anhydride.  The tetra-alkyl pyrophosphate preferably has one to four carbon atoms in each alkyl group and may for example be tetra-ethyl pyrophosphate. The composition may be employed together with a solid or liquid carrier.  Inert solid carriers specified are pyrophyllite, volcanic ash, diatomaceous earth, clays and talcs.  The tetra alkyl pyrophosphate and acetic anhydride may be dissolved in a water immiscible solvent and dispersed in water.  Surface active agents specified are alkyl aryl sulphonates, for example sodium dodecyl-benzene sulphone, sulphated fatty alcohols, alkyl sulphonates, sulphated esters and acids, amide sulphates and sulphonates, sulphated and sulphonated oils, fats and waxes, fatty esters of glycerol and glycol and other polyhydric alcohols e.g. sorbitol, the condensation products of ethylene oxide with fatty acids, abietic acid, alkylphenols e.g. nonylphenol and mercaptans, e.g. tertiary-dodecyl mercaptan.  Specification 668,522 is referred to.