baber/WOPTO huggingface dataset:
Patent GB-729979-A (GB)
Title: Improvements relating to tension indicators or measuring devices for use with tensioned suspended wires and cables
Inventor: ASTON HORACE
IPC: G01L5/06
Filed: 1953-05-29
Abstract: 729,979. Dynamometers. SALTER & CO., Ltd., G. March 17, 1954 [May 29, 1953], No. 14951/53. Class 106 (2). For measuring the tension in wires (e.g. overhead telephone cables) the device, Fig. 1, is placed over the wire with the wire touching a central roller 14 on the side nearest the dial, and a lever 12, Fig. 2, is operated to bring, by links 9 and levers 7, two outer rollers 6 into contact with the wire so that the wire is displaced from its original straight position, the resulting force on the central roller 14 moving a triangular plate 16 against the action of two coil springs 18 to operate an indicating needle on a pinion 29 by link 24, lever 25 and rack 27, the rack and pinion arrangement being kept in engagement by a spring 28. The end 34 of a lever 32 bears against the rack arm 27 to jam the latter so that the indicating needle retains its position when the device is removed from the wire. The device can be re-set by moving the other end 35 of the lever 32, and the lever can be made inoperative by engaging the end 35 in a recess (not shown) in the casing.
Patent GB-243259-A (GB)
Title: An improved disengaging mechanism for locks
IPC: E05B27/00
Filed: 1925-06-09
Abstract: 243,259. Matticoli, A. June 9, 1925. No Patent granted (Sealing fee not paid). Lock - mechanism, operated by non-rotating key; revolving-barrel; padlocks. - In a lock of the type having spring - actuated sliding plates, each provided with a groove, the grooves being brought into alignment by a stepped key to release the lock, the sliding plates 1, 2, 3 are apertured and mounted on rods 6, supported at each end and carrying springs 7. Fig. 8 shows the application of the invention to a padlock where alignment of the grooves 8 permits a pawl 15 on a bolt 14 to rise and so free the shackle 17. A tail 19 on the shackle releases the pawl from the grooves when locking. In the application to a cylinder lock a segment 16, Fig. 6, drops into the aligned grooves and allows the barrel of the lock to turn.
Patent GB-185217-A (GB)
Title: Method of, and means for, raising and maintaining the temperature in furnaces, stoves, or the like
IPC: F23C99/00
Filed: 1921-05-31
Abstract: 185,217. Robinson, I. E. May 31, 1921. Closed solid - fuel stoves ; feeding; smoke preventing; outlets to chimneys. - Improvements in the furnace and stove described in Specification 5261/11, in which the fuel in a chamber a is distilled by heat from the combustion chamber c and the products of combustion are returned to the latter by a steam-jet or the like, consist in contracting and expanding the combustion gases any numberof times in their passage from and to the combustion chamber, and also 'in causing contraction and expansion of the gases in the waste gas flue. In the furnace or stove shown, a steam jet k draws the gases through an opening g in a partition d and returns them through a passage i to the combustion chamber c ; contraction taking place at the openings g, i and expansion in the chamber e. At each circulation a portion of the gases escapes to the flue f, which has a constriction r and expansion chamber s. The steam is generated in a coil l and passes to a steam-chest n, whence it is supplied by a pipek, in which superheating occurs, to the jet.
Patent GB-610816-A (GB)
Title: An improved method of rolling composite billets in the manufacture of metal clad electric cables
IPC: B21B17/00
Filed: 1945-06-13
Abstract: 610,816. Making metal-clad cables. ROBERTS, E. G. L. June 13, 1945, No. 15017. [Classes 83 (ii) and 83 (iv)] Rolling.-Metal-clad cables are rolled from composite billets such as those described in Specification 561,312 by passing the billet without angular rotation through successive pairs of rolls, the crosssectional area of the pass of any pair being less than that of the preceding pair by not more than one-tenth. The rolling is effected in a mill comprising a number of pairs of rolls, the angle between the axes of successive pairs being 90, 45, 30 or 22¢ degrees. Fig. 3 shows the form of two of the rolls 1, 2, each having a groove of radius R and the pass distance being h. The circle 3 has its centre mid-way between the centres of the grooves and the spaces indicated at 4 and 5 act as relieving areas for the spreading of the material during rolling. Formulµ are given for determining the pass h and the radius of the grooves in any succeeding pairs of rolls and for the number of passes required to reduce the billet to a given diameter.
Patent GB-1268261-A (GB)
Title: Liquid resistor apparatus and method of controlling electric current
IPC: H01C10/02
Filed: 1969-03-21
Abstract: 1,268,261. Liquid variable resistors. N. R. BEYRARD. 21 March, 1969 [27 March, 1968], No. 15110/69. Heading HIS. In a liquid resistor apparatus having two chambers 3, 4-each with electrodes 11, 12 and 15, 16-interconnected by a first passage 6 between their lower regions and a second passage 7 between their upper regions which presents a fixed restriction (e.g. a pointed screw 8) to vapour flow, the relation between the restriction in passage 7 and the bore of passage 6 is such that vaporization of liquid in the control chamber 3 causes displacement of liquid therefrom into the controlled chamber 4. Thus a control current passing between terminals 13 and 14 increases the vapour pressure in chamber 3 which forces liquid through passage 6 and reduces the resistance between terminals 18 and 19, so that a controlled current may pass through chamber 4. The electrodes 15, 16 may be shaped as shown to produce a rapidly increasing electrode area as the liquid level N rises. If the screw 8 is set such that the effective bore of passage 7 is very much smaller than that of passage 6, then a suitable control current will cause rapid displacement of liquid into chamber 4 so that the apparatus will function as a switch. With different relative bore sizes a delayed response may be achieved. The apparatus may function as a current amplifier; or it may be used to control an electric motor (Fig. 4, not shown). To produce rapid initial vapour production with reduced subsequent vapour production as the level falls in chamber 3, the top-most portions only of electrodes 11, 12 may be close together (23, 24, Fig. 5, not shown); or baffles (31-39, Figs. 5 and 6, not shown) may be provided in lower regions of the chamber. Safety valves &c., and cooling fins may be provided. A non-electrolytic liquid (e.g. Hg) may be used, in which case the apparatus may be used with D.C. current. For use with 3-phase current, electrodes in at least the control chamber may be connected in star or delta configuration; and a single control chamber may control the level of liquid in three controlled chambers.
Patent GB-260902-A (GB)
Title: Kinematographic projecting apparatus with a continuously moving film
IPC: G03B41/06
Filed: 1926-06-16
Abstract: 260,902. Brewer, G., (Ernemann-Werk-c Akt.-Ges.). June 16, 1926. Kinematograph apparatus.-In a continuousfeed projector having a rotating helical mirror for optical compensation, the length of the light paths from any point on the film to the lens is maintained constant by causing the film, or a real image of it, to move obliquely through the axis of projection and the light beam. As shown diagrammatically in Fig. 2, the film 1<1> passes obliquely through the beam 6 from a light source 4, and the beam is reflected by a helical mirror 2 to a prism 7 causing the virtual image of the film to lie at right angles to the axis of the lens 3. The real image of a film passing normally or obliquely through the axis of projection may be rendered oblique by means of a combined lens and prism system. Fig. 4 shows a construction in which the film in a gate 13 is illuminated by a beam from a light 4 reflected from one part of the helical mirror 2, the light beam being also reflected by a fixed mirror 17 on to another part of the mirror 2 by which compensation is effected. Lenses 8 produce a real image of the film in proximity to the mirror 2, and the prism 7 virtually turns this image so as to lie normal to the axis of the projection lens 3.
Patent GB-352167-A (GB)
Title: Improvements in the manufacture and production of vulcanisation products
IPC: C08K11/00
Filed: 1930-05-19
Abstract: The products obtained by the destructive oxidation of difficultly volatile paraffin hydrocarbons, and which consist mainly of carboxylic acids but are free from resins and/or asphaltic matter, are used to replace such agents as stearic acid, with or without zinc oxide, in rubber mixes prior to vulcanization.  They may be employed in the form of zinc salts, and are prepared, for example, by blowing the said materials with air or other gaseous oxidizing agent while warming.  Examples of rubber mixes prepared according to the invention are given. Specification 134,878, [Class 70, India-rubber &c.], is referred to.
Patent GB-529156-A (GB)
Title: Improvements in or relating to transportable lifting devices for transferring goods to and from storage
IPC: B62B3/06
Filed: 1939-05-23
Abstract: 529,156. Load-handling machines. KING, Ltd., G. W,. and KING, D. M. May 23, 1939, No. 15341. [Class 78 (iii)] A transportable lifting device for transferring goods to and from storage comprises a wheeled base on which is mounted a main framework, a subsidiary framework slidably mounted within the main framework, a platform slidably mounted with respect to the subsidiary framework, and means to effect raising or lowering of the platform relatively to the subsidiary framework and/or raising or lowering of the latter relatively to the main framework. The main framework includes four vertical members 12 of channel section which act as guides for four similar members 13 of the subsidiary framework: Pulleys 17, 18 are mounted near the upper and lower ends of each member 13, and a pulley 19 is mounted at the upper end of each member 12. Cables 22, 23 wound on winding drums 21 are passed round sheaves 19, 18, 17 and secured to the load carrying platform 15. Ajustable steadying feet 27 are mounted un the base. Rollers 16 facilitate the placing of loads on the platform. Another set of rollers may be provided which can be raised into operative position above the first set or retracted to lie below it. These rollers are arranged at right angles to the rollers 16, and may be raised to operative position when the platform reaches its lowest position. The motor 20 driving the drums 21 may be cut out automatically when the platform approaches its top or bottom position.
Patent GB-819054-A (GB)
Title: Apparatus for tightening and closing steel strips put around boxes, bales and the like
IPC: B65B13/34
Filed: 1957-05-15
Abstract: 819,054. Tensioning bands. STRAPEX A. G. May 15, 1957 [May 15, 1956], No. 15391/57. Class 45. [Also in Group XV] Apparatus for tensioning a steel strip 3 around boxes, bales and the like, comprises an actuating lever 24 geared by wheel 25 and rack 29 to a sliding carriage 28 so that a limited oscillatory movement of the lever tightens the strip by means of a feed pawl 31, and complete movement of the actuating lever, combined with operation of push-button 20 and action of a lever 26 on a closing lever 17, forms a closure of a sleeve 4 (see Group XV). The strip 3 is introduced into the apparatus so that the closing sleeve 4 lies within a channel 6 after the actuating lever 24 has been set horizontal, in which position, the carriage 28 is moved to the right and lever 26 is in position to tilt extension arm 34 and lever 36 to lift feed pawl 31 and a holding pawl 31a clear of the strip.
Patent GB-560882-A (GB)
Title: Improvements in screw and nut gearing
IPC: F16H25/20
Filed: 1942-11-03
Abstract: 560,882. Screw and - nut gearing. NEEDHAM, G. Nov. 3, 1942, No. 15462. [Class 80 (iii)] Means for preventing backlash in screw-andnut gearing, comprise a nut divided longitudinally into two parts which are held together in their operative positions by collars also adjustable to move one part of the nut relatively to the other part. The nut, Fig. 2, is divided along an axial plane to produce two parts A, A<1> of which A is connected by an extension E to the machine part to be actuated. The halfends A<1> of the part A are threaded to receive collars D the crests of the threads on which engage plain surfaces on the half-ends B<1> of the part B which is slightly longer than the part A. In a modification, the nut is divided along planes inclined at less than 180‹. In a modification, Fig. 5, the collars D of Fig. 2, have teeth P to be engaged by worms Q rotatably mounted in a part O by ferrules S engaging collars R on the worm spindles. This facilitates adjustment in cases where the nuts are inaccessible. According to the Provisional Specification one part of the nut is dovetailed into the other part, the parts being secured in operative position by screws.
Patent GB-529657-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/32
Filed: 1939-05-24
Abstract: 529,657. Suction cleaners. HOOVER, Ltd. May 24, 1939, No. 15464. Convention date, June 20, 1938. [Class 8 (i)] In a suction cleaner on which a converter fitting can be inserted in a lateral opening in the main casing, a prop is attached to the converter fitting so as to tilt the cleaner and thus raise the main nozzle clear of the carpet when the converter is in use. The prop 12 is secured rigidly to the converter fitting 6 which may be secured in position by the latch 11. In an alternative form, the prop comprises a loopshaped cam 13 riveted to a flange 15a at the forward end of the sleeve 15 which is rotatably mounted on the converter fitting 14. The converter fitting is inserted with the prop in the raised position, so that the projecting lug 16 on the converter opening enters the bayonet groove 15b in the flange 15a. On rotation of the sleeve 15, the converter fitting is locked in position and the prop is turned into the operative position.
Patent GB-553976-A (GB)
Title: Catalytic agents
IPC: B01J27/06
Filed: 1941-12-01
Abstract: 553,976. Catalytic agents. FIFE, J. G. (Shell Development Co.). Dec. 1, 1941, No. 15467. [Class 1 (i)] A liquid catalyst of Friedel-Crafts type is made by fusing an aluminium halide with a molecular excess of a metal halide which does not react with it, and then treating with a hydrogen halide to form a complex double compound with the aluminium halide. The metal salt preferably has a boiling point below 300‹ C. A typical example comprises aluminium chloride and antimony trichloride.
Patent GB-237569-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B23/08
Filed: 1925-06-15
Abstract: 237,569. Soc. Italiana Motori a Nafta, (Assignees of Varale, T.). July 25, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Vaporizers, external.-Spark ignition takes place in a substantially hemispherical chamber 6 the outer surface of which is ribbed and serves to heat the mixture during its passage from the port 11 to the inlet valve 4. Within the chamber 6 the mixture is further heated almost to the point of self-ignition. In multi-cylinder engines, a single suction chamber is preferably employed for each pair of cylinders, a baffle being placed within the port 11 to deflect the mixture towards the sides of the chamber.
Patent GB-579334-A (GB)
Title: Improvements in fuel injection systems for internal combustion engines
IPC: F02D9/00
Filed: 1943-09-23
Abstract: 579,334. Injection systems; controlling. DODSON, E. Sept. 23, 1943, No. 15646. [Classes 7 (iii) and 7 (vi)] A fuel injection system comprises a fuel supply conduit, an injection nozzle, a pump for feeding fuel along the conduit to the nozzle and an acceleration pump operative on sudden opening of the throttle to augment temporarily the flow of fuel through the conduit. One arm 25 of a three-armed lever 14, rigid with the pilot's control lever 13, is connected to an upper piston 26 in an acceleration pump 27 of which the lower piston 31 is urged to a given predetermined position by a spring 32. A bypass 34, Fig. 2 connects the ends of the pump cylinder. Quick movement of the throttle control arm 13, by raising the piston 26 exerts suction on the lower piston 31, raising it until the suction is negatived by leakage through a restricted passage 36 in the piston. The lift of the piston rocks a lever 37 anti-clockwise about its pivot with the end of a Bourdon tube 38 adapted to apply a temperature correction to the device, and the lever 37 acting through a link 41 and lever 42 raises bodily a unit comprising exhausted capsules 47 and a capsule 50, responsive to exhaust back pressure, disposed in a chamber 49 exposed to boost pressure. These capsules normally actuate the valve 53 of a servo motor having its working piston 43 connected by a link 61 to a cam 44 which through a lever 57 and rod 59 controls a fuel inlet valve 30 to determine the richness of the mixture in accordance with boost pressure, temperature and the exhaust back pressure. The displacement of the capsule unit overrides their normal action and causes the cam 44 to rotate and supply additional fuel to the induction system. The other two arms of the lever 14 are connected, the one, 16, to a boost control as described in Specification 419,113 and the other arm, 21 to a toggle linkage 20 controlling an air throttle 12 and connected to the boost control 18, and to a link 22 actuated by a cam 23 adapted to enrich the mixture when the pilot's control is moved from "cruising" to a "power" position as described in Specification 579,335. In a modification, the lever 37 and link 41 are omitted, the Bourdon tube 38 is connected to one end of the lever 42 and the piston 26 is connected to the link 61, operating the cam 44, through a lever connected intermediately to the servo motor piston 43. In either case, the control may vary the effective stroke of a fuel injection pump instead of the valve 30.
Patent GB-129176-A (GB)
Title: Improvements in Stoves for use in Office, Domestic, and the like Open Fireplaces.
Inventor: HAILWOOD JOHN
IPC: F24B1/02
Filed: 1918-09-26
Abstract: 129,176. Hailwood, J. Sept. 26, 1918. Closed solid-fuel stoves -A closed stove consists of an iron casing lined with tiles Land containing a fire-grate F and a baffle K. At the front are main firing-doors D and an auxiliary door E. The outlet to the chimney may be at the top or the back. The back of the stove is preferably narrower than the front.
Patent GB-328473-A (GB)
Title: Improvements in vent plugs for electric cells
IPC: H01M2/12
Filed: 1929-05-21
Abstract: 328,473. Batteries, Ltd., and Dybeck, M. May 21, l<\>1'2<g>. Gas exits.-A gas exit comprising concentric tubes is provided with a cup-like member F covering the opening in the outermost tube and serving to prevent the passage of spray and to retain liquid to form a trap or seal. The inner tubes are formed with slotted openings A<3> and may be provided with baffles which may be similar to the trap F. Holes A<5> may be formed in the upper ends of alternate tubes. The tubes may be made of steel and are connected together by welded rings C, the inner one having a threaded stem which screws into a lug D. Celluloid may also be used for the tubes, in which case they are cemented together.
Patent GB-1406597-A (GB)
Title: Method of producing a high density body of a polycrystalline compound
IPC: C09K11/70
Filed: 1974-04-09
Abstract: 1406597 Production of poly crystalline compounds SIEMENS AG 9 April 1974 [9 April 1973] 15748/74 Heading B1S A polycrystalline compound, e.g. III-V semiconductor compound, is prepared by placing the two components of the compound to be produced in a vessel which is sealed and heated such that the first component melts and there is produced in the melt a zone, which is moved horizontally through the melt and is hotter than anywhere else in the vessel, and is everywhere substantially below the melting point of the compound to be produced; and the second component, which has a substantially higher vapeur pressure above the melt than the first component migrates in vapour form to the first component and reacts in the zone to produce the compound required at a temperature below its melting point. The pressure of the second component is preferably below the decomposition vapour pressure of the compound to be produced and considerably above the decomposition vapour pressure of the first compcnent. As shown in Fig 2 an ampoule 1 contains at one end red phosphorous 12 and at the other end a crucible 10 containing gallium 14 which is melted by an RF induction coil 4. The ampoule 1 is initially heated under vacuum and sealed and then moved to the left through the heating apparatus having the temperature gradient as shown. Some of the phosphorous migrates in vapour form to the left end of the crucible 10, where it reacts with the gallium in the hottest zone to produce GaP without the mp of GaP being attained. The phosphous is progressively used in the reaction as the ampoule advances to the left. The right end of the ampoule is the coldest part and consequently a pressure of 9-10 atmospheres absolute exists during the reaction. The preparation of Inp is also exemplified.
Patent GB-122431-A (GB)
Title: Improvements in or relating to Electrical Transformers.
Inventor: BERRY FREDERICK EDMUND
IPC: H01F30/14
Filed: 1917-10-30
Abstract: 122,431. Berry, F. E. Oct. 30, 1917. Phase, changing; polyphase transformers.-A transformer for changing three-phase to four-phase current has a transformer A, B, C for each of the three phases, the primaries a, b being of the same size and the primary c smaller. Two secondary windings are used with each of the primaries a, band one secondary with the primary c. One of the ends of each of the four secondaries on the transformers A, B is connected to the remaining secondary as shown, the four-phase current being taken from the remaining ends of the four secondaries, the mid point 6 of the secondary on the transformer C being the neutral point. As applied to an electric furnace, the point 6 is connected to a hearth electrode, but with balanced loads between the phases no current will flow in the hearth electrode. In an arrangement for converting three-phase to two-phase, the secondary of the transformer C is also divided into two, the four ends being connected to four of the ends of the secondaries on the transformers A, B. The remaining ends of the latter secondaries furnish the two-phase supply. The transformers may be used for converting two or four-phase current into three-phase. Instead of three single-phase transformers, a three-phase transformer may be used.
Patent GB-1269382-A (GB)
Title: Fibre-forming polyamides having an increased content of amino groups and process for their manufacture
IPC: C08G69/02
Filed: 1969-03-26
Abstract: 1,269,382. Polyamides; polyamines. FARBWERKE HOECHST A.G. 26 March, 1969 [26 March, 1968], No. 15861/69. Heading C3R. Polyamides are made by conventionally polycondensing conventional starting materials in the presence of #10% wt. of a polyamine (I) where X=0-30 ; R<SP>1</SP>=H, -CH 3  or -C 2 H 5  ; and R<SP>11</SP> = H, -CH 3 , or -C 2 H 5  ; and, in (II), the majority of the rings are bonded in the meta- or para-positions; furthermore, the rings in (II) may be substituted with C 1-5  alkyl group(s). Alternatively, (I) or (II) may be incorporated into an already-formed polyamide, e.g. by coating chips of the polyamide with a solution of (I) or (II), removing the solvent, and melt-blending. The polyamides thus modified may be polyamide 6 or 66; other starting materials for polyamides are listed. Up to 0À3% wt. of phosphorus compounds, e.g. phosphoric, phosphonic, or phosphinic acids or their esters, or phosphorous acid, may be added to carry out a secondary condensation, for attaining high viscosities. The modified polyamides may be used to form filaments. Polyamine (I) may be prepared by heating 4,4<SP>1</SP> - diaminodicyclohexane or appropriate homologue in N 2  at 250 C. in the presence of 1% wt. Raney Ni. Polyamine (II) is made employing optionally substituted xylylene diamine(s), in the presence of Ni catalyst at 220 C. in H 2  at 100-200 atmos. The product may then be distilled.