baber/WOPTO huggingface dataset:
Patent GB-173804-A (GB)
Title: Improvements in and relating to gas turbines having an oscillating fluid as operating means
IPC: F02C1/00
Filed: 1920-08-05
Abstract: 173,804. Stauber, G. Aug. 5, 1920. Working-fluid supply.-Relates to hydraulic turbines wherein the explosion of gases is used to oscillate liquid from one rotor to another through a stationary guide. Both rotors I, II, Figs. 2 and 3, rotate in the same direction and are divided into a number of cells, the liquid flowing through the fixed intermediate guidechannels first in the direction 1-2 and then in the direction 4-5, and so on. The gases are admitted and exhausted through ports 8, which may be placed further from the shaft so that the liquid periodically covers them. In a modification, one of the rotors acts as a compressor for producing compressed air, part of which is conveyed to combustion chambers where it is burnt with fuel under constant pressure, and part is re-expanded in the rotor. To keep the speed constant with diminishing load, the extent of the oscillation is reduced by changing the working pressures and the cushioning volume, with or without alteration of the blade angles. In a further modification, Figs. 10 and 13, the opposite cells of the two rotors a, b communicate at their inner ends, the fixed guides 24 delivering the liquid always from a to b, as for example from the cell 19 to the cell 21. A stationary valve-box 11 contains parts 12, 13 for the admission of scavenging air and combustible mixture, and also exhaust ducts 15 and ignition ports 16, the ports 17, 18 serving for the admission and exhaust of the gases in the cells of the rotors. Several forms of the fixed guide between the two rotors are described, and Fig. 19 shows a construction of fixed guide c which enables the same set of rotor blades a to be used for receiving and delivering the liquid. A balanced arrangement of rotors is shown in Fig. 21. To regulate the level of the water in the rotors, a pressure-responsive device is used, adapted to vary the forces acting on the liquid pistons. The valve-box 47, Fig. 26, controlling the admission and exhaust of the rotor gases may be pressed by a spring-pressed bell-crank 61 against the shaft thrust bearing 54, and may easily be removed by releasing the pin 53. A combustion chamber 55, Fig. 27, connects several of the rotor cells 49, and communicates by a valve-controlled duct 57 with an isolated' ignition chamber 58 adapted when the apertures 59 are closed to throw the flame back into the combustion chamber, whereupon the needle valve 56 is closed and the ignition device is protected from the subsequent combustion.
Patent GB-1107644-A (GB)
Title: Improvements relating to electric switches
Inventor: ASHMAN JOHN ROBERT
IPC: H01H3/58
Filed: 1964-06-04
Abstract: 1,107,644. Switches held set and freed mechanically. PLESSEY-UK Ltd. 3 June, 1965 [4 June, 1964], No. 23166/64. Heading H1N. Rotation of a control knob 10 causes rotation of a threaded shaft 13 bearing acarriage 14 which is contained against rotation on shaft 13 and which displaces a pinion 8 along a shaft 9 into a selected position for driving engagement with a rotor wheel 5 then rotation of a control knob 22 rotates shaft 9 and thus rotates the selected wheel 5 via pinion 8 and moves the contact wiper 4 of wheel 5 (Fig. 3, not shown) until it engages a selected. contact on an associated printed circuit board 3. Simultaneously knob 22 rotates on indicator disc 27 such that characters visible at a window 30 (Fig. 4, not shown) signify the particular outlet of the switch unit engaged by the wiper 4. Pressure on a reset button 31 unlatches detents such as 32 from the selected wheel 5 which is then restored to a datum position by axial return springs 33 (Fig. 5, not shown) which are stressed when wheel 5 is rotated to a selected position. Alternatively the wheel 5 may be returned manually to a stop position before rotation to another selected position. Pinion 8 is indexed in position for engaging a wheel 5 by a spring pressure ball engaging indentations 18 in a member 19 of casing 1. Carriage 14 carries a pointer 20 which shows in an illuminated window 21 the switch unit or rotor wheel 5 selected by knob 10.
Patent GB-1280127-A (GB)
Title: Method of manufacturing magnetic heads
IPC: C04B37/00
Filed: 1971-04-19
Abstract: 1280127 Making magnetic heads PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [10 March 1970] 23232/71 Heading G5R Two ferrite parts 1, 2 are clamped together, separated by spacers 9, 9<SP>1</SP>, 9<SP>11</SP>, 9<SP>111</SP> having a thickness equal to the desired gap length, and are heated at their gap-defining surfaces to substantially the flow temperature of a non- magnetizable gap-filler material, e.g. glass or enamel, of which a quantity is heated to its flow temperature and then applied to the gap, into which it is sucked by capillary action, and the assembly is then coded. Initially the gapfiller material is heated until it is free of bubbles.
Patent GB-358640-A (GB)
Title: Improvements in or relating to laminated springs for vehicles
IPC: B60G11/107
Filed: 1930-08-01
Abstract: 358,640. Laminated springs. GORDON, B. L., 1517, Belfield Avenue, Philadelphia, U.S.A. Aug. 1, 1930, No. 23271. [Class 108 (iii).] In vehicle suspensions in which the ends of semielliptic laminated springs support the vehicle frame through two toothed racks and an interposed pinion, one of the racks is curved to give a centralizing effect. In the construction shown in Figs. 1 and 2, the two ends of the two superimposed springs 1, 2 enter the housing and each carries a curved rack 18, 20 which supports the vehicle through toothed rollers 17, 21 bearing against straight racks secured respectively to the upper sides 6 of the housing, and to an intermediate partition 11. The two springs are centralized laterally in the housing by bent spring plates 24. Light spring arms 28, 32 with rubber buffers attached limit and cushion end play of the springs and also check vertical play. In a modification shown in Fig. 4, a single spring is used but some of the lower leaves 37 are adapted to bear downwardly in opposition to the other leaves through a similar rack and pinion arrangement.
Patent GB-1499025-A (GB)
Title: Electronic musical instrument
IPC: G10H1/18
Filed: 1975-05-28
Abstract: 1499025 Digital electronic musical instruments NIPPON GAKKI SEIZO KK 28 May 1975 [31 May 1974 (2)] 23276/75 Heading G5J A digital electronic musical instrument comprises a keyboard or keyboards 1, logical circuitry for generating an address code (8-bits long wherein 2 bits denotes the keyboard; 2-bits a block of keys on the keyboard; and 4-bits a key within the block) which is used to access first frequency information from the memory 7, a calculator 8 which either adds or subtracts second frequency information representing a constant frequency difference from said first frequency information to generate modified frequency information which is collated by the counters 5a, 5b, 5c and stored in the waveshape memory 6. By this method a beat or chorus effect is generated. Another embodiment is described wherein there is a further set of the frequency information generator, pitch controller, counters and memory, the frequency information in the two pitch controllers relating to slightly different frequency differences to produce a sway or deep single key beat effect.
Patent GB-899887-A (GB)
Title: Improvements in electrically-heated devices
IPC: F24C15/34
Filed: 1959-07-07
Abstract: 899,887. Electric heat storage ovens. DULRAE Ltd., STEELE, W. H., and LEA, N. J. July 6, 1960 [July 7, 1959], No. 23341/59. Addition to 881,469. Class 39(3) [Also in Group XIII] In an electrically heat storage device claimed in the parent Specification (Group XI) the space 11 between a heat insulating partition 9 and a casing roof 13 is adapted to receive articles to be heat treated. The partition and roof are provided with apertures controlled by dampers 22, 17 respectively and the space may house an oven comprising a sheet steel reflective casing 18 provided with channels 19 for shelves, and a heat equalising base-plate 20. Heated air from the lower heating unit circulating as shown. In a modification the oven may be totally enclosed from the heating gas stream, or the space may house a heatexchanger device connected by conduits to an external closed circuit system.
Patent GB-837438-A (GB)
Title: Process for the manufacture of polyalkylene glycol terephthalates
IPC: C08G63/83
Filed: 1956-07-27
Abstract: A polyalkylene terephthalate is obtained from a precondensate thereof having a K value of below 35 which has been obtained by reacting dimethyl terephthalate with a glycol in the presence of zinc acetate as a catalyst, by condensing the precondensate in the presence of cadmium acetate and antimony oxide as catalysts, the cadmium acetate being added only after the precondensate has been formed.  Examples describe the manufacture of polyethylene terephthalate from dimethyl terephthalate and ethylene glycol. Specifications 578,079, 740,381, 753,880 and U.S.A. Specifications 2,518,283 and 2,641,592 are referred to.
Patent GB-1429552-A (GB)
Title: Flame retardant composition and its production
IPC: C08K13/02
Filed: 1973-05-16
Abstract: 1429552 Coated products GAF CORP 16 May 1973 [16 June 1972] 23435/73 Heading B2E [Also in Division C3] Jute fabric is pre-proofed by roller-coating it with a mixture of (I) carboxylated styrenebutadiene rubber latex, (2) calcium carbonate and (3) a fire-retardant mixture of zinc borate and dibromobutenediol. The fire-retardant is made by cooling a dispersion of zinc borate in a solution of the diol to precipitate the latter onto the diborate.
Patent GB-224048-A (GB)
Title: Improvements in and relating to soldering compounds
IPC: B23K35/36
Filed: 1923-09-20
Abstract: 224,048. Sinclair, F. B. Sept. 20, 1923. Fluxes; tinning.-A compound for soldering or for tin-coating cast iron or steel, brass, bronze, gunmetal, zinc, galvanized iron, German silver, &c., or for soldering zinc on cast iron, consists of ammonium zinc chloride, pulverized tin, and a small proportion of glycerine. The ammonium zinc chloride and powdered tin may be in about equal proportions. One composition consists of 48 parts of ammonium zinc chloride crystals containing 1 per cent of glycerine and 52 parts of powdered tin. The compound may be made by dissolving one kilogram of zinc in hydrochloric acid and adding one kilogram of ammonium chloride thereto. One per cent of glycerine is added to the crystals of the double chloride and drying is effected by a current of cold air from a fan or blower. The dried crystals are then mixed with the powdered tin and pounded or rolled, sifted, and the resulting powder then put up in lever-lid tins or otherwise packed to exclude air or moisture. The compound may be applied to the surface of the heated metal or a heated poker or soldering iron employed, or the compound mav be melted in a pot and the article dipped therein.
Patent GB-362846-A (GB)
Title: Improvements in dyeing esters and ethers of cellulose
IPC: C09B1/514
Filed: 1930-08-06
Abstract: Cellulose esters or ethers, dyeing.--Cellulose esters or ethers are dyed fast blue-green to green shades with 1 : 4-di-(hydroxyarylido)anthraquinones.  In an example acetate silk is dyed a fast blue-green by treatment for \ba3/4\be-1 hr. at temperatures rising gradually to 75 DEG  C. in an aqueous soap bath containing a dispersion of 1 : 4-di-(m-hydroxyphenylamino)anthraquinone made by precipitation from 85 per cent sulphuric acid.  Green dyeings are similarly obtainable by the use of 5-hydroxy-1 : 4-di-(p-hydroxyphenylamino)anthraquinone and 1 : 2-dihydroxy-5 : 8-di-(p-hydroxyphenylamino)anthraquinone.  1 : 4-Di-(m-hydroxyphenylamino)anthraquinone is obtained by condensing leuco-quinizarin with m-aminophenol.  5 - Hydroxy - 1 : 4 - di - (p - hydroxyphenylamino)-anthraquinone and 1 : 2 - dihydroxy - 5 : 8 - di - (p-hydroxyphenylamino)anthraquinone are obtained by condensing 1 : 4 : 5-leuco-trihydroxy- and 1 : 2 : 5 : 8-tetrahydroxyanthraquinone respectively with p-aminophenol.  Reference has been directed by the Comptroller to Specification 338,412, [Class 2 (iii), Dyes &c.].
Patent GB-364687-A (GB)
Title: Improvements in or relating to searchlights
IPC: F21V7/04
Filed: 1930-08-15
Abstract: 364,687. Reflectors. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Ceskomoravska-Kolben-Danek Co., Ltd.; Prague.) Aug. 15, 1931, No. 23571/30. [Class 75 (ii).] In a landing light for air ports &c., or a lighthouse lamp &c., constructed to give substantially parallel rays in one plane, which is for instance vertical, and maximum spread in planes at right-angles thereto, reflecting surfaces 3 are arranged symmetrically with respect to the plane CD of maximum spread and make angles therewith which decrease from the middle to the two ends so as to reflect rays substantially parallel to one another, and in sections parallel to the plane CD have a curvature such as semi-circular so as to give maximum spread. In the form shown in Fig. 3, the curvature for giving spread is such that the angle of deflection of the light rays from the plane AB is proportional to their photometric intensity. In another form the curvature for giving spread is such that the parts most distant from the middle plane have increased illumination by having reflected thereto the rays both of greatest and least intensity, while the remaining rays are reflected as in Fig. 3. The individual surfaces 3 may be continuous or in separate plane sections.
Patent GB-1151594-A (GB)
Title: Detection of Missile Fuels in Gas Atmospheres
IPC: G01N31/00
Filed: 1966-05-26
Abstract: 1,151,594. Gas analysis. MINE SAFETY APPLIANCES CO. May 26, 1966 [June 1, 1965], No.23594/66. Heading G1B. Volatile nitrogen compounds of the group consisting of hydrazine, hydrazine hydrate, red fuming nitric acid, insymmetrical dimethyl hydrazine and alkyl hydrazines, when present in a gas e.g. air, are detected using a reagent comprising a soluble hexavalent chromium compound and a pentavalent phosphoric acid supported on an inert carrier. The carrier is preferably silica gel, but may be alumina, glass cloth or filter paper, and there is provided, per 100 ml. of carrier from 0À0145 g. to 2À6 g. of hexavalent chromium and from 0À022 g. to 24g. of pentavalent phosphorus, the reagent having a water content of 10 to 12% by weight. The reagent may be used in a detector tube through which gas samples are pumped, or it may be used as an exposure indicator in gas masks.
Patent GB-767270-A (GB)
Title: Improvements in or relating to dispensing valves for liquids
IPC: F16K31/44
Filed: 1954-08-13
Abstract: <PICT:0767270/III/1> <PICT:0767270/III/2> <PICT:0767270/III/3> <PICT:0767270/III/4> In apparatus for dispensing measured quantities of several liquids having finely divided solid particles in suspension, i.e. liquids carrying colourants for paint mixing, a plurality of liquid dispensing valves are disposed in a common casing, the valves consisting of piston elements 35, Fig. 6, arranged in a circle about a central post 36.  Each element is associated with inlet and outlet ports 8, 9 connected respectively to the discharge and suction sides of a pump 51, Fig. 1, one pump for each valve, and a delivery port 5 and is recessed at its upper end 37 to coact with the tip 41 of an individual spring-loaded control rod 40 which passes through a guideway 42 in a common valve plate 18.  The plate 18 is secured to a tubular member 19 slidable on the post 36, the member 19 carrying spaced anvils 21, 22 which cooperate with a weight 26 slidable on the member 19 and connected by links 90, Fig. 2, to arms 69 loaded by leaf springs 66.  The springs are connected together by a rod 71 pivotally mounted in fixed bearings 72, Fig. 10, and to a bell-crank lever 64.  On the rotation of a main timing and driving gear 58 which also drives the pumps, a crank pin 60 on the gear 58 oscillates a connecting rod 59 and a crank arm 61 to which the bell-crank lever 64 is connected, to energize the springs.  A trigger arm 80 pivoted at 82 has at one end a head 85 engageable with a stop 86 on one of the arms 69 to hold the arms 69 and hence the weight 26 in one or other of the extreme positions by means of a cam control lever 81 and at its other end a finger 76 engageable with stop pins 87, 88 on the gear 58.  As the crank arm 61 is lowered the bell-crank 64 is raised and after a time interval the pin 88 engages the finger 76 to disengage the head 85 from the top of the stop 86 whence the energy stored in the springs 66 drives the weight 26 unwards into contact with the anvil 21 to raise simultaneously all those valve elements which are engaged by the control rod tips 41 to isolate ports 9 from ports 8 and connect ports 8 to ports 5.  Similarly raising of the crank arm with consequent lowering of the bell-crank 64, the underside of the stop 86 is engaged by the head 85 and after a time interval the pin 87 causes disengagement of these parts and the weight and valve elements are moved downwards.  Graduated discs 50, one for each pump control the displacements of the pumps and on rotation of a disc through 120 degrees a pin on the disc engages a lever to move the associated control rod 40 against its spring to disengage its tip from the recess 37 and render that valve inoperative.  Thus the valves to be operated may be preselected. Specification 767,269 is referred to.
Patent GB-788332-A (GB)
Title: Air and combustion products control means for a solid fuel fire grate
Inventor: ROYALL FREDERICK ALBERT
IPC: F23L17/00
Filed: 1955-08-18
Abstract: 788,332. Open fireplaces. RADIATION, Ltd. July 10, 1956. [Aug. 18, 1955], No. 23793/55. Class 126. In a grate comprising a cast iron body 5, Fig. 1, containing a grid 6, a partition 7 forms with the rear of the body a passage 8 up which the combustion products pass, and a second partition 9 forms with partition 7 a passage for secondary air. A plate or damper 11, Fig. 2, having a veeshaped protuberance 13 corresponding with a protuberance 14 on the body 5, is pivoted at its lower edge in a recess formed on the partition 7 which in one position closes the upper end of passage 8, and in another partially closes the entrance to the passage 10. The damper 11 is operated by means of a spindle 15 having a quick-pitch screw thread co-acting with a nut' 17, attached by a link 18 to the damper. In a modification, a second damper is used to vary the size of the passage 10.
Patent GB-803091-A (GB)
Title: Improvements relating to ironing tables
Inventor: HOOD ROBERT TURNER
IPC: D06F79/02
Filed: 1956-08-02
Abstract: 803,091. Ironing-boards; stands for hand irons. BRADLEY & CO., Ltd. July 29, 1957 [Aug. 2, 1956], No. 23832/56. Class 138 (2). In an ironing-table b an iron support adjacent the broad or non-tapering extremity comprises a wire frame a having two side rails co-operating with channels c<SP>2</SP> in brackets c beneath the table to slide outwards for supporting an electric iron, or inwardly beneath the table. The frame has bent struts a<SP>2</SP> forming a supporting cavity. Each bracket c is bolted at c<SP>1</SP> to flanges b<SP>1</SP> on the underside of the table. The frame has stops a<SP>3</SP> to prevent removal, and slots a<SP>4</SP> engaged by indentations c<SP>3</SP> in the channels for location in the out-of-use position.
Patent GB-730281-A (GB)
Title: Improvements in side delivery rakes and/or swath turners
Inventor: BAMFORD RUPERT CYRIL
IPC: A01D78/00
Filed: 1951-10-13
Abstract: 730,281. Side-delivery rakes. BAMFORDS, Ltd. Oct. 6; 1952 [Oct. 13, 1951], No. 23880/51. Class 6 (3). A side-delivery rake, of the kind having rakebars 17 extending obliquely between spiders 15, 16 on a frame 10, is capable of being towed at right angles to its normal direction of travel and has a steerable wheel-assembly 22, 25 to which a drawbar 28 may be attached, for transport. The frame comprises a tubular beam 10 carrying arched tubular members 12, 14 which support a bearing for the rear spider 16 and are mounted at the rear on a castor-wheel assembly 23. The front spider 15 is driven from the tractor through gearing 9 described in Specification 707,436, and the beam 10 is normally supported from the tractor three-point suspension by lugs 38. An additional wheel 29 supports the rear end of the beam 10 during transport and is mounted on a pivoted leg 30 so that it can be swung upwardly into an inoperative position in normal use. The castor wheel 22 is vertically adjustable. Specifications 707,404 and 730,304 also are referred to.
Patent GB-1323624-A (GB)
Title: Resilient supports for railway rails
IPC: E01B9/68
Filed: 1971-04-19
Abstract: 1323624 Resilient supports for railway rails CONTINENTAL GUMMI-WERKE AG 19 April 1971 [11 Feb 1970] 23922/71 Heading EIG In a resilient rail support, particularly for rails laid without sleepers, wherein a rubber or like pad 3, shown on a base plate 2 anchored to a concrete foundation 1, supports a chair plate 5 carrying and extending outside a rail 7, the pad 3 is provided on its upper and/or lower faces with protuberances 10 in the form of ribs or studs whose construction or spacing varies across the pad so that the central region of the pad, i.e. under the rail 7, has a greater resistance to deformation than the outer regions and so prevents the chair plate from bending under load. As shown the studs 10 are rectangular and closely spaced in the central region, and circular in the outer regions. The pad 3 has drainage holes 12 and upstanding end flanges locating the chair plate 5. The plate 5 and rail 7 are clamped by respective clips 6, 8.
Patent GB-1081255-A (GB)
Title: Industrial lift truck
Inventor: QUAYLE GEORGE F
IPC: B66F9/20
Filed: 1966-05-27
Abstract: 1,081,255. Masted lift trucks; take-up reels for flexible power lines. EATON YALE & TOWNE Inc. May 27, 1966, No. 23931/66. Headings B8B and B8H. A flexible power line 15 extending between a power source on a lift truck body and the lifting carriage passes around a pulley 11a, mounted at the top of the movable mast section 11, and a take-up reel 16, rotatably mounted on a plate 17 which is slidably mounted on the fixed mast section 10. The reel 16 is provided with a helical plate 19, forming a helical groove 18 for the line 15, and with a pair of posts 30, 31 mounted on the end face of the reel, the line 15 being so guided, as shown, that rotation of the reel causes the line to be taken in or paid out on both sides. A cable 29 extends between anchorages in an annular groove 28 on the reel and at the top 29a of the fixed mast section whereby, as the plate 17 supporting the reel descends under gravity, the cable 29 rotates the reel in an anticlockwise direction to pay out the line 15. In operation, on raising the lifting carriage from its fully lowered position, Fig. 1 (not shown), the reel descends and is rotated to take up the slack in the line 15. On raising the movable mast section, the tension in the line 15 causes the reel to rotate in the opposite direction, thereby raising the reel to the top of the fixed mast section. The cable 29 may be replaced by a coiled spring mounted between the plate 17 and the hub of the reel.