baber/WOPTO huggingface dataset:
Patent GB-665968-A (GB)
Title: A method of manufacturing tools
IPC: C21D1/06
Filed: 1949-11-23
Abstract: 665,968. Making hand tools, plough-shares, matchets, &c. STIVIN, J., and TRACHTA, J. Nov. 23, 1949 [Dec. 3, 1948], No. 30020/49. Classes 83 (ii) and 83 (iv). [Also in Groups XI] Curving and straightening.-In a method of manufacturing tools, such as hoes, shovels, spades, plough-shares, matchets and the like consisting of two layers of steel one of which is softer than the other, the tools are made from a continuous strip which is superficially hardened on one side only by surface heating followed by quenching, after which it is divided and made into individual pieces. The continuous strip 1 is heated and quenched for a portion only of its thickness and width by an induction heating head 11 having nozzles 12 through which cooling liquid may be sprayed. Burners may be used instead of electrical heating. Curving of the strip due to the unequal heating is prevented by rolls 4, 5, 6, Fig. 3, which cause compression of the heated layer. The deformation which would be caused upon the cooling down of the strip is compensated for by the increase in specific volume of the martensite into which the material of the hardened layer is changed. The relative positions of the rolls may be adjusted to over-compensate for the deformation produced by the formation of martensite so that after cooling the strip is curved with the hardened layer on the concave side, as may be required in certain finished tools such as spades. The roll 6 is of insulating material to prevent the induction therein of electric currents by the heating head. The strip is then divided into individual tools for example spade blades, Fig. 1, by punching out tips 14 in the unhardened portion of the strip and grooves 15 in the soft layer of the hardened portion, the strip being finally divided by breaking along the grooves 15. Eyelets or sleeves are attached to the tools by welding, the hardened layer being cooled during such operation. The Specification as open to inspection under Sect. 91 comprises also apparatus, Fig. 4 (Cancelled), comprising geared rolls 6, 7 and 15, and chain driven rolls 34, 35, 36 and heating head 22 (see Group XI), the relative positions of the rolls being adjustable by screws 20, 38 and 41. In a modification the strip is of double width and hardened along a central portion, the strip being then divided longitudinally and laterally. This subject-matter does not appear in the Specification as accepted.
Patent GB-300670-A (GB)
Abstract: 300,670. Kellett, H. July 18, 1927. No Patent granted (Sealing fee not paid). Exhibitions, pcenic and spectacular. -A large annular building of many storeys high and enclosing an open space g of an acre or more, is provided on the inside with a spiral track or roadway e supported on the overhanging edge by columns d<1> and giving access to every part of the building. The track forms a, lateral extension of the floors, which are carried by the three main walls a, b, c and columns a', b<1>, c<1>; the columns may house pipes and ducts for heating, lighting, and ventilation, and may form dust shoots. The annular roof space is flat and may be used for receiving and despatching goods by air. The building is divided into tenements, shops, garages, showrooms, stores, hospitals, sanatoria, exhibitions, &c. and is provided with lifts and staircases shown hatched. The open space g may include ornamental gardens, parks, and sports, grounds for which the building may serve as a grand stand. A rotunda R is provided in the centre and may contain rooms for recreation and refreshments, gymnasia, swimming baths, etc.; tunnelled or covered ways h connect the rotunda with the building.
Patent GB-896107-A (GB)
Title: Removable means for crown caps
IPC: B65D41/42
Filed: 1959-09-04
Abstract: 896,107. Crown corks. AMATO, P., WARDER, F. A., and WARDER, S. P. Sept. 4, 1959 [Sept. 19, 1958], No. 30308/59. Class 125(3). A crown cork has spaced tear-off strips 26 which protrude outwards from its flange so that they may be removed by the insertion of a finger nail after which the part 30 can be raised to remove the cork from the bottle. A cork washer is provided inside the crown and slots 28 in the crown facilitate the lifting of the part 30.
Patent GB-1044608-A (GB)
Title: Substituted 3-(ª‰-hydroxyalkyl)-4-alkyl-coumarins and process for their production
IPC: C07D311/16
Filed: 1965-07-16
Abstract: The invention comprises 3-(b -hydroxyalkyl)-4-alkyl coumarins of the formula <FORM:1044608/C2/1> wherein R is an alkyl group, R1 is a hydrogen atom or an alkyl, halogenoalkyl or aryl group, R2 is an alkyl, hydroxy or alkoxy group and R3 is a hydrogen atom or a hydroxy group, and a process for their preparation comprising reacting a compound of the formula <FORM:1044608/C2/2> with a compound of the formula <FORM:1044608/C2/3> in the presence of an acid condensation agent. If a hydrogen halide is used as the condensation agent the hydroxy group of the 3-b -hydroxyalkyl radical in the coumarin molecule may, at elevated temperatures, be replaced by halogen.
Patent GB-468356-A (GB)
Title: Improvements in and relating to feeding dough and like material from hoppers
IPC: A21C3/04
Filed: 1935-11-02
Abstract: 468,356. Shoots and hoppers. BAKER PERKINS, Ltd., and PATERSON, J. C. Nov. 2, 1935, No. 30343. [Class 78 (i)] [Also in Group V] A dough sheeting or like machine comprising a hopper 5 at the base of which a large feed roll 3 and a pressure roll 2 are mounted, is provided with tamping or treading means reciprocating in proximity to the roll 2 to press dough supported by the roll 3 into the nip between the rolls. The tamping means may comprise a plate, slat or bar 1 which is reciprocated tangentially of the roll 2 in a vertical or inclined direction or it may be oscillatecl in an arcuate path. The plate 1 may be secured to a rack 6 engaging floating pinions 7 engaging a fixed rack 8 and the pinions 7 may be reciprocated by links and levers 9, 10, 12, 13 from a crank disc 14. The lower end of the plate 1 may be curved. It may have a stroke of 6 to 10 inches at a rate of 15 to 20 per minute. The plate may be reciprocated directly from oscillating levers and guided rectilinearly by pivoted radius arms.
Patent GB-909419-A (GB)
Title: Improvements in or relating to magnetic switching apparatus
Inventor: HARTLEY HENRY FREDERICK
IPC: H03K19/16
Filed: 1959-09-04
Abstract: 909,419. Circuits employing bi-stable magnetic elements. ROE & CO. Ltd., A. V. Aug. 26, 1960 [Sept. 4, 1959], No. 30346/59. Class 40 (9). The output winding 4, Fig. 3, of a magnetic element 1 shunts the branch including the output resistor 11 in the circuit of a drive pulse generator 6. The drive pulse tends to drive the element 1 to the normal reset state 0 and if the element is already in state 0, the winding 4 offers a low impedance, accepts the pulse, and in effect short-circuits resistor 11 across which no output voltage appears. In series with the load resistor 11 is connected a further resistor(not shown, Fig. 3), sufficient to ensure that, whatever the load impedance, a pulse is diverted to the winding 4 in the low impedance state. If the core is initially set to 1 by winding 2, winding 4 offers a high impedance and the drive pulse is accepted by the output resistor 11 across which an output voltage appears. The magnetic element may have a separate reset winding 5, Fig. 2, which may be connected to the drive pulse generator 6, as shown, or may be included in the leads 9 in series with the parallel circuit. Logical devices.-A NOT output may be taken from resistor 8 in Fig. 2. Two magnetic elements 14, 15 set by a setting device 3 perform an AND operation. The output resistor 11 is shunted by the two output windings 18, 19 in parallel and there is no output from 11 if either element is set to 0. In an OR circuit, Fig. 5, the output resistor 11 is shunted by output windings 29, 32 in series. Each core of a logical circuit may have a number of setting windings. Spurious outputs.-In Fig. 6, the output winding 38 of an auxiliary element 35 shunts a series connection of the output winding 4 of element 1 and a resistor 34 to avoid spurious signals when performing a NOT operation. Element 35 is set to 1 for each operation and does not normally accept any drive current. If element 1 is set to 1 and the drive pulse persists when both elements have switched, the winding 4 and resistor 8 are robbed of spurious signal current by winding 38, both windings 4, 38 having a low impedance at this stage. Shift registers.-A number of the elements shown in Figs. 2 or 3 may form a shift register, the output of one setting the next in a series.
Patent GB-1419770-A (GB)
Title: Press tools
IPC: B30B11/04
Filed: 1972-06-29
Abstract: 1419770 Compacting powder METAL COMPACTING TOOLS Ltd 22 June 1973 [29 June 1972] 30371/72 Heading B5A A powder compacting press for producing a helical gear includes a helically profiled cavity of a die 6, upper and lower punches 8, 10 with end portions having profiles corresponding to that of the die cavity, each punch being associated with a helical bearing system with rolling bearing means whereby during its axial movement relative the die it is caused to follow the helical profile of the cavity. The bearing system, Fig. 2, may comprise a sleeve 18 with helical tracks 20 secured to the lower punch surrounded by a stationary bush 22 in a fixed block 23 in the die block 2. The bush has corresponding tracks 24 associated with tracks 20, and balls are interposed therebetween and circulate via end tracks 28 and outer tracks 26. A bore is formed in the gear by a rod 32 with its lower end received by a bearing 36 allowing its rotation. Alternatively the bearing system may comprise a sleeve 44, Fig. 1, with helical tracks 46 surrounded by a stationary bush 48 with associated tracks 50. The bush is carried by a block 4 within a chamber 54 in a block 38 and urged downwardly by pressure fluid supplied through a port 52 or by springs. An angularly biased sleeve 58 receives the core rod 32 when the upper punch is lowered, after the end of the die cavity has been closed by the lower punch and the die cavity supplied with metal powder. Before the upper punch enters the cavity a member 56 engages the die block and relative displacement between the blocks 42 and 38 effects appropriate rotation of the upper punch. After withdrawal of the upper punch the lower punch is raised and rotated to eject the compacted article.
Patent GB-1348751-A (GB)
Title: Foam control compositions
IPC: C08L83/04
Filed: 1972-06-29
Abstract: 1348751 Polyether/polyethersiloxane antifoam compositions DOW CORNING CORP 29 June 1972 [15 May 1972] 30422/72 Headings C3T and C3R An antifoam composition comprises (1) 70- 98À9 wt. per cent of a polyoxypropylene polymer, polyoxypropylene - polyoxyethylene copolymer or a mixture thereof, of MW's 500-6000, (2) 1-20 wt. per cent of a mixture of (i) 88-95% of a liquid polydimethylsiloxane of viscosity at least 25 cS./25 C., (ii) 5-10% silica, and (iii) 0-2% of a resin having units SiO 2  and Me 3 SiO 0À5  in a ratio 1 : 0À4-1À2, and (3) 0À1-10 wt. per cent of a copolymer of units SiO 2 , Me 3 SiO 0À5  and QMe 2 SiO 0À5  wherein Q is a polyoxypropylene or polyoxypropylene-polyoxyethylene radical of MW 500-6000 and the ratio of SiO 2  units to the others is 1 : 0À4-1À2, or a copolymer obtained by heating a resin of units SiO 2  and Me 3 SiO 0À5  in the ratio 1: 0À4-1À2 with a hydroxylated polyoxypropylene or polyoxypropylene-polyoxyethylene of MW 500-6000, and optionally up to 10 wt. per cent of a solvent. A number of such compositions are prepared in the Examples.
Patent GB-1522747-A (GB)
Title: Railway locomotive bogie
IPC: B61F3/06
Filed: 1976-07-21
Abstract: 1522747 Railway locomotive bogie GENERAL STEEL INDUSTRIES Inc 21 July 1976 [6 May 1976] 30439/76 Heading B7L In a three-axle locomotive bogie, a bolster 25, 27, 29 is supported by a swivel bearing 31, 21 and two sliding bearings 33, 23 on a rigid bogie frame 7. 9, 11, 13, 15 and itself carries springs 53 supporting a locomotive body U, the bogie frame and bolster being shaped to accommodate traction motors M2, M3, M4 drivingly connected to respective axles 2, 3, 4 and having reaction connections to respective bogie frame transom members 13, 15, 11. Links 75 are connected between a bolster side member 25 and the body U such that extensions of their longitudinal axes intersect at rail level and thereby transmit traction forces between the bogie and body at this level. Transfer of lo#d from axle to axle is therefore minimized. Each link 75 is pivoted at 90 to an arm 89, 91 of a bell crank 93, 97 fulcrumed on transverse axes of pins 85, 87 carried by webs 81 secured to the bolster side members; the other arms of the bell cranks being interconnected by a link 99. This arrangement ensures longitudinal force transmission between the bolster and body U irrespective of vertical compression of the springs 53 or shear deflection of elastomeric pads sandwiched between metal plates and seated beneath springs 53.
Patent GB-465276-A (GB)
Title: Improvements in or relating to valve amplifying circuits for television and like purposes
IPC: H03D11/02
Filed: 1935-11-04
Abstract: 465,276. Valve circuits for wireless reception. BAIRD TELEVISION, Ltd., and JOHNSTONE, D. M. Nov. 4, 1935, No. 30479. [Class 40 (v)] In a super-regenerative receiver for television the super-regenerative amplifying valves are quenched not only at the normal quench frequency but also during the " fly-back " period for the line or frame scanning or both. The quenching impulses may be applied to the grid of a pentode valve 1 as described in Specification 455,298 arranged as a shunt to the tuned circuit 3 of the super-regenerative valve 2. A circuit 6 may be provided to prevent the quench oscillation being fed to the amplifier 2.
Patent GB-1407395-A (GB)
Title: Nitriding and carburizing face-centred cubic iron alloys
IPC: C23C8/26
Filed: 1971-06-29
Abstract: 1407395 Nitriding iron alloys NATIONAL RESEARCH DEVELOPMENT CORP 26 Sept 1972 [29 June 1971] 30481/71 Heading C7U There is included in an iron base alloy of facecentred cubic structure an alloying element soluble in iron which reduces the activity coefficient of nitrogen in iron, and the alloy is gas-nitrided under such conditions of atmosphere and temperature that formation of G.P. zones occurs while nitride production is inhibited. The alloys particularly treated are Fe-Mn, Fe-Ni and austenitic stainless steels, while the addition element is selected from Ti, V, Cr, Mn, Zr, Nb, Mo, Ta and W preferably in an amount of 0.1-10 wt per cent. Nitriding may be carried out at 450-850‹C in hydrogenammonia mixture.
Patent GB-404112-A (GB)
Title: Improvements in and relating to electric vacuum switches
IPC: H01H33/66
Filed: 1932-10-31
Abstract: 404,112. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Prince, D. C. ; 649, N, Chester Road, Swarthmore, Pennsylvania, U.S.A.) Oct. 31, 1932, No. 30557. Convention date, Oct. 29, 1931. [Class 38 (v).] Switches having contacts disposed in a chamber which is highly evacuated have the movable contact arranged to be operated by electromagnetic means functioning by repulsion. As shown in Fig. 1 the movable contact is in the form of a ball 71 mounted on a rod 9 which carries at its ends short-circuited coils or metal rings 14, 15, induced currents in the coils or rings being produced by closing and opening electromagnets 13, 12 when the windings 21, 20 are energized by alternating current, so that the rings function by repulsion to produce corresponding movements of the contact bar. When the closing electromagnet 21 is energized the ball 7 is moved between relatively fixed contact balls 5, 6 which are mounted on springs 7, 8 in such a manner that a wiping action occurs between the contacts during their engagement and disengagement. When the spring electromagnet 20 is energized, a spring 18 absorbs the impact of the contact rod during the opening movement. The contact mechanism is mounted within a highly evacuated container 3 of glass or other suitable material, the centre limbs of the operating electromagnets projecting into recesses formed within the ends of the container so that the rings 14, 15 are always surrounded by a portion of the core limbs. The opening winding 20 may be energized through an overload relay 25 or both windings may be controlled by push buttons 22, 23. In a modified form (Fig. 2, not shown) the operating rod engages the movable contact with lost motion, this contact being spring mounted. By this latter arrangement a sharp percussive opening movement of the contact is produced so overcoming sticking or welding between the contacts. If desired one of the operating electromagnets may be omitted the switch being automatically latched in the closed position and releasable manually or automatically. The switch may be held in the closed or open position by frictional engagement between the ring and the envelope or by a spring detent engaging a projection on the operating rod. Specification 314,352, [Class 38 (v), Electric switches &c.], is referred to. The Specification as open to inspection under Sect. 91 comprises also a vacuum switch in which the movable contact member is operated to close the switch by electromagnetic attraction, the operating armature actuating the spring-mounted movable contact member with lost motion so that a sharp percussive opening movement of the contacts is produced. This subject-matter does not appear in the Specification as accepted.
Patent GB-854529-A (GB)
Title: Improvements in or relating to stock distributors for paper making machines
IPC: D21F1/02
Filed: 1957-09-30
Abstract: 854,529. Flow-boxes of paper-making machines. BELOIT IRON WORKS. Sept. 30, 1957 [Dec. 27, 1956], No. 30567/57. Class 96. Paper pulp flows at high speed through a pipe 11, and at lower speed through a transverse pipe 40, through a series of vertical pipes 41a, through conduits 31, 30, through flow-evener rolls 24e, 24c and 24d and 24a and 24b in a flow-box 20, and out through a slice S to a wire-cloth W of a Fourdrinier paper-making machine. The incoming pulp thus flows through a succession of turns of a right or greater angle, the conduit 31 and pipe 11 sloping upwardly in the direction of flow. The conduit 31 has a constricted region A, and its depth is adjustable as by the use of shims 50 and 52. In a modification, the pipes 41a, which are close together, are formed by two metal sheets bolted together, one being shaped to provide curved conduit walls abutting against the other plate which is flat.
Patent GB-1112863-A (GB)
Title: Process for preparing stable,aqueous dispersions of copolymers of vinyl esters and ethylene
IPC: C08F2/22
Filed: 1965-07-19
Abstract: A stable aqueous dispersion of a copolymer of ethylene and at least one vinyl ester is obtained by a process wherein an aqueous emulsion of the vinyl ester, emulsifier or protective colloid and catalyst, is copolymerized with ethylene in a reaction vessel at a pressure up to 300 atmospheres, and wherein the weight ratio of vinyl ester and catalyst is maintained substantially constant. Other monomers may be present and specified are acrylamide, acrylic, crotonic and methacrylic acids and esters, esters of maleic and fumaric acids, and vinyl sulphonic acid and its alkali metal salts. The catalyst may be a vinyl-ester-soluble peroxide, a water-soluble peroxy compound, a redox system or an azo compound. In examples, the emulsion ingredients comprise the hydroxyethylation product of an alkyl phenol, the sodium salt of the sulphonic acid of a C14 hydrocarbon, hydroxyethyl cellulose, Na4P2O7, and acetic acid to adjust pH.  The products are substantially free of grafted material.
Patent GB-171999-A (GB)
Title: Multiple fuse
IPC: H01H85/26
Filed: 1921-11-16
Abstract: 171,999. Szykier, J. Nov. 24, 1920, [Convention date]. Fusible cut-outs.-A magazine fuse plug of the type described. in Specification 164,361, has an insulating disc b in which is embedded a contact x making connecnection with one terminal of each fuse g in turn. The disc may have notches y to accommodate the terminals of the fuses for the time being out of circuit. In the Specification as open to inspection under Sect. 91 (3) (a), the invention was stated to be applicable generally to magazine fuse plugs. This statement does not appear in the Specification as accepted.
Patent GB-840503-A (GB)
Title: Improvements relating to electrical socket contact assemblies
Inventor: DEAKIN STANLEY THOMAS
IPC: H01R24/00
Filed: 1956-10-08
Abstract: 840,503. Two-part couplings; holders for thermionic valves. SIEMENS EDISON SWAN Ltd. Sept. 30, 1957 [Oct. 8, 1956], No. 30630/56. Class 38 (1). A socket contact assembly for detachably engaging one or more male contact members comprises an insulating body 10 having one or more socket contacts 1 secured thereto, the socket contacts 1 being similar to those disclosed in Specification 768,242. The male contact members may be of usual construction or they may be in the form of a conductor printed on the surface of an insulating member.
Patent GB-1272331-A (GB)
Title: Breaker block
Inventor: SANSOME DENNIS HUGH
IPC: B21B33/00
Filed: 1969-06-17
Abstract: 1,272,331. Rolling mills. NATIONAL RESEARCH DEVELOPMENT CORP. 15 June, 1970 [17 June, 1969], No. 30662/69. Heading B3M. [Also in Division F2] A breaker block, which may be associated with the screwdown of a rolling mill to protect the mill against excessive rolling loads, is formed by a housing 1 defining a central chamber, the chamber being divided by a diaphragm 7 into two sections. One section houses a shaped piston 13, while the other contains a liquid 17. The liquid is compressed either by a plunger assembly 30 or a pump connected to a one-way valve. When an excessive load is applied across an extension 16 of the piston and an extension 3 of the housing, the pressure of the liquid causes a relief valve 36 to open. The piston is then able to rupture the diaphragm 7 and move inwardly of the chamber. The valve 36 includes a ball 22 which is urged by an adjustable spring pressure against a seating, the ball being lifted from the seating when the pressure of the liquid rises above the spring pressure. The plunger assembly 30 incorporates a plunger 32 which is pressed by a screw 31 against a slug 34 of deformable material, such as lead. The lead is extruded into a passage 33 to compress the liquid in the chamber. The lower part 4 of the housing may be formed in two sections, one shaped to accommodate the piston, and the other threaded to the upper part 2.
Patent GB-1102206-A (GB)
Title: Iron-base alloys
Inventor: CAPE ARTHUR TREGONING
IPC: C22C38/52
Filed: 1966-07-08
Abstract: An alloy consists of: .C.1.25 - 175% .Cr.21 - 23% .Mo.1 - 2.5% .Ni.3 - 5% .Co.7 - 9% .Fe.this balance, this portion is Co increasing as the proportion of Ni is increased.