baber/WOPTO huggingface dataset:
Patent GB-317961-A (GB)
Title: Improvements in the production of magnesia from dolomite
IPC: C05D11/00
Filed: 1928-07-19
Abstract: 317,961. Twynam, T. July 19, 1928. Magnesium monoxide and hydroxide; calcium nitrate.-Dolomite is dissolved in nitric acid and the magnesia is precipitated from the resulting solution by means of lime in the form of burnt dolcmite. An insufficient amount of nitric acid may be used whereby iron oxide and siliceous matter usually present remain undissolved. The precipitated hydroxide may be separated from the heavier magnesia from the burnt dolomite by physical means. The calcium nitrate solution is evaporated and the product used as a fertilizer.
Patent GB-654194-A (GB)
Title: Improvements in or relating to brick moulding machines
IPC: B28B7/38
Filed: 1948-08-09
Abstract: 654,194. Sanding moulds. BERRY, D. G. Aug. 9, 1948, No. 21014. [Class 87 (ii)] An apparatus for sanding brick moulds comprises a sand container 18, a rotor 21 mounted to rotate about a horizontal axis 22 within the container, a platform 14 above and to one side of the container, a feeding rotor 16 above the platform provided with an arm 15 arranged to sweep the moulds one at a time into the container with the opening of the mould against locating means 20 on the rotor 21, a pushing element 23 extending radially outwards from the locating means to engage a wall of the mould and to push it through the sand in the container and along a guide 24 on the opposite side of the container, the guide being arranged first to turn the mould bottom uppermost while over the container and then to turn them openside upwards and deliver it to means for feeding the mould to a moulding-machine. The locating means 20 is in the form of a grill. After leaving the guide 24 the moulds, now disposed open-side downwards, pass over curved guide strips 25 urged by a roller 34 rotating about shaft 47. They are then deposited open side up on a shoot 27. At the bottom of the shoot is a check device consisting of two levers 28 pivoting at 29 and having a roller 31 mounted between them which is maintained in the path of the moulds by a weight 32. The additional weight of a fourth mould deposited at the top of the shoot forces the lowermost mould to pass the check device and fall on to a platform 35. They are swept off the platform 35 by a reciprocating pusher 36 onto another platform (not shown), from where they are fed into the moulding-machine by another pusher. The pusher 36 is reciprocated from a crank-pin 48 via mechanism 40, 49, 52, 54, 55, 57, 60. The second pusher (not shown) is operated by a simple crank mechanism.
Patent GB-457213-A (GB)
Title: Improvements in and relating to sound reproducing devices of the pneumatic relay type
IPC: H04R1/42
Filed: 1935-07-24
Abstract: 457,213. Fluid - pressure relays for phonographs &c. KOLB, O. K., 39, Beverley Court, Wellesley Road, Chiswick, London, and RICKETS, W. J., 293, Whitchurch Lane, Edgware, Middlesex. July 24, 1935, No. 21053. [Classes 13 and 40 (ii)] [See also Group XXXIX] A sound - reproducing device of the pneumatic relay type has one or more valves controlling the flow of fluid in accordance with the wave form of the sound and according to the average intensity or amplitude envelope of a sound sequence to be reproduced. The valve may be mechanically set at the half-open position and its average value control may be inversely as the average intensity so that it is moved towards the closed position when a sound sequence of low intensity is being reproduced. As shown in Fig. 1, a grid or comb valve V is vibrated over apertures S in the fluid channel by a moving coil M in which the sound currents are superimposed on currents proportional to the average amplitude of a sequence of sounds which uncovers the apertures S to a corresponding extent. The coils for the sound and " average-value " currents may be separate. In a modification, Fig. 2 (not shown), the grid valve V is operated by a reed armature. In a further arrangement, Fig. 3, the sound currents are fed to the moving coil 14 controlling the valve V, whilst the currents corresponding to the average value of a sequence of sounds actuate a moving coil M2 controlling a member V1 to provide a varying restriction in the fluid channel leading to the valve S, V. In another embodiment, Fig. 4, the averagevalue control is provided by a pneumatic arrangement. Fluid from a pump or other source passes through an opening in the valve V to a chamber W having a restricted outlet 02 and a non-return valve N leading to a chamber C in which is movable a piston P connected to a valve element V1 which controls the amount of air passing to the valve arrangement S, V controlled by the electromagnetic instrument 13. In a modification of Fig. 4, the chamber C and piston P are replaced by a container having a flexible end. In a further embodiment, Fig. 6 (not shown), the valve element V is oscillated in accordance with the sound currents whilst the perforated member S forms part of a chamber of light-weight movable according to the value of the average amplitude of the sound currents, the chamber being connected to the source of fluid supply by a flexible pipe. The valves and valveseatings may be formed of a thermo-plastic material, e.g. of the phenol-formaldehyde group, or the valves may be of aluminium or magnesium alloy.
Patent GB-136632-A (GB)
Title: Improvements in or relating to Apparatus for Operating the Points of Railways and Tramways and the like.
Inventor: THOMSON HUGH ALEXANDER
IPC: B61L5/02
Filed: 1918-12-17
Abstract: 136,632. Thomson, H. A. Dec. 17, 1918. Hand-levers.-Railway or tramway points are operated by apparatus constructed so that the points are movable from either extreme position to the reverse position by either a forward or backward movement of the hand lever. As shown, the apparatus comprises a frame a, through which passes a spindle b on which is loosely mounted a hand lever c and two cams d, e, normally held as shown by a spring f acting on the cams through the sleeves f<1> and f<2>. Lateral movement of the hand-lever is prevented by the sides of the slot in which it works. The cams are connected through the bell-crank lever h to the point rod. A pair of toggles i, normally inclined to the vertical, are pivotally mounted in recesses in the cam faces. The hand-lever is formed with convex surfaces c<1>, c<4> to engage the oppositely inclined peripheral surfaces of the projections m, k on the cams. When the lever is moved in either direction, it engages one of the cam projections and forces the toggles into their mid-position against the action of the spring b. Further movement of the lever causes the toggles to move rapidly to the reverse position, carrying the points with them. The hand-lever is not affected by vehicles trailing through the points.
Patent GB-479050-A (GB)
Title: Improvements in the manufacture of artificial filaments, foils and like materials
IPC: D01F2/28
Filed: 1936-07-30
Abstract: Artificial filaments, foils, and similar materials of organic derivatives of cellulose are passed from the outer air into an end chamber, which communicates with a pressure treatment chamber and contains water at a temperature below that at which it exerts any softening action on the materials, and into non-slipping contact with a positively driven feed device in the end chamber, thence through the communication between the end and treatment chambers into hot water under pressure at a temperature above 100 DEG  C. contained in the treatment chamber, and finally into the outer air, the materials being stretched while in the hot water. Preferably the pressure of the water in the treatment chamber is the same as or a little more than that in the end chamber.  The water in the end chamber may be above or below or at atmospheric temperature.  Stretching may be effected in hot water at temperatures of 110--140 DEG  C. or more. The materials may be stretched to a low or high degree up to ten or more times their original length.  If desired, an end chamber may be disposed at each end of the stretching chamber and in this case the outlet chamber may contain the stretching device.  The water in the stretching chamber may contain solvents or plasticizers including alcohols, tartrates, lactates, and sulphonamides.  After the stretching operation, the materials may be subjected to shrinking or saponification treatments carried out continuously with stretching. The process is applicable to materials of cellulose acetate, propionate, or butyrate, or of ethyl or butyl cellulose. Specifications 389,823, 437,595, and 443,773, are referred to.
Patent GB-1459623-A (GB)
Title: Preparation of brominated pentaerythritols and esters
IPC: C07C31/34
Filed: 1974-05-13
Abstract: 1459623 Fire-retardant polymers DOW CHEMICAL CO 13 May 1974 [23 May 1973] 21121/74 Headings C3R and C3P [Also in Division C2] Polymers (P) are made fire-retardant by incorporation of (B) a brominated pentaerythritol and/or a brominated neopentyl ester either by forming a composition comprising (P) and (B) or by including (B) in the ingredients used for preparing (P). In Examples 4 and 5, (B) is blended into a polyurethane foam; in Examples 6-9 (B) is used as one of the starting materials for a polyurethane foam; in Example 10 (B) is used as one of the starting materials for an unsaturated polyester resin also incorporating maleic acid, phthalic anhydride, hydroquinone and styrene. This resin is then mixed with styrenated propylene glycol resin, styrene, and benzoyl peroxide, cast, and heat-cured.
Patent GB-1185327-A (GB)
Title: A Material for Use in Electrophotographic Reproduction.
IPC: G03G5/06
Filed: 1967-05-05
Abstract: 1,185,327. Aryl aminothiazoles. FERRANIA S.p.A. 5 May, 1967 [6 May, 1966], No. 21124/67. Heading C2C. [Also in Division H1] Compounds of formula wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are H, aryl or aryl substituted by OCH 3 , OC 2 H 5 , NHCH 3 , NHC 2 H 5 , N(CH 3 ) 2 , N(C 2 H 5 ) 2 , COCH 3 , COC 2 H 5 , Cl, Br, I, NO 2 , NO or CO 2 H, are made the condensation of an acyl halide with a thiourea derivative. In the specific embodiments, 2-α-naphthylamino- 4,5-diphenylthiazole is made by the condensation of desyl chloride and α-naphthyl thiourea whilst the 2-#-naphthylamino-, 2-N-phenyl-, N-#-naphthylamino-, 2-(p-anilino)-phenylamino, and 2-(4<SP>1</SP>-diethylamino)-phenylaminoderivatives are made by replacing α-naphthyl thiourea with the appropriate thiourea derivative. The reaction of N,N-diphenylthiourea and phenacyl bromide yields 2-N,N-diphenylamino- 4 - phenylthiazole: 2 - α - naphthylamino - 4 - p-diphenylthiazole is likewise afforded by the reaction of 4-phenyl-α-bromo acetophenone with α-naphthythiourea.
Patent GB-771860-A (GB)
Title: Improvements relating to sinks
IPC: E03C1/182
Filed: 1955-07-21
Abstract: 771,860. Flushing sinks. GENERAL ELECTRIC CO. July 21, 1955 [July 30, 1954], No. 21175/55. Class 26.  In a sink with a substantially flat bottom wall 2 and a water inlet spout 10 mounted for swinging movement in an arc overlying a rear corner portion of the bottom wall, flow-directing means are located in the rear corner portion for directing water from the spout along the edges of the bottom wall in a swirling pattern around a substantially central drain aperture 3. As shown, the flow-directing means comprises a trough-shaped surface 11 integral with the bottom and rear walls 2, 7 and projecting forwardly and downwardly from the rear wall.
Patent GB-479431-A (GB)
Title: Improvements in and relating to electrical remote control apparatus
IPC: H03G1/02
Filed: 1936-07-31
Abstract: 479,431. Electromagnetic relays. WHITELEY, A. H. July 31, 1936, No. 21200. [Class 38 (v)] [Also in Group XL] The output volume of an amplifier or radio receiver and the current supply to the amplifier or receiver are controlled electrically from a distance, the latter control being operable only when the volume control is at or near its minimum setting. Fig. 1 shows a relay of the kind which latches and releases on consecutive energizations and comprises an armature I carrying at its free extremity a hooked wire 16 which engages in a cam track between two members 17, 18. Alternatively, a starwheel latching-release system may be employed. On energization of relay coil 13, armature 11 is attracted to close contacts 19 which then remain closed until the relay is again energized. The relay unit also includes a battery 20, terminals 24, 25 and the receiver mains supply plug 27. Fig. 3 shows the controlled circuits, the terminals 24 being connected to the loudspeaker terminals of a radio receiver or amplifier to which a distant loud-speaker LS is connected. Depression of push-button 22 on the local relay unit 23 at the remote point closes the mains supply 26 to the receiver supply plug 27. In a modification, an auxiliary relay is employed to close the contacts of relay 13, Fig. 4 (not shown). The low-frequency volume may be controlled in known manner by a potentiometer shunted across the loud-speaker leads, such as a resistance winding 31,Fig. 6, tappings from which are brought out to contacts engaged by a rotary switch and knob 34. The rotor spindle is drilled to receive a rod 38 terminating in a spring-loaded press-button 39 which when depressed closes a pair of fixed contacts 35 to switch the set on or off as at 23 of Fig. 3. The bridging contact 36 is mounted on an insulating plate 37 mounted on rod 38 and passing through an aperture in an L-shaped member 40 which rotates with the knob 34. The arrangement is such that the member 37 pivots about member 40 to move contact 36 inwards (to the left) only in the minimum position of the volume-control; depression of knob 39 in all other positions has no effect.
Patent GB-316301-A (GB)
Title: Improvements in and relating to the governing of internal combustion engines
IPC: F02D1/00
Filed: 1929-07-10
Abstract: 316,301. Junkers, H. July 27, 1928, [Convention date.]. Regulating delivery of two or more combined pumps.-In a system of governing an internalcombustion engine by controlling the fuel pumps, pumps are employed of the type which cease to operate when the controlling member seizes, and yielding means are interposed between the governor and the controlling member of each pump. Two levers 6, 7, Fig. 1, may be interposed between the rod 3, operated by the governor, and the lever 5 on the control spindle 4 of each pump, the lever 6 being connected to the rod 3, while the lever 7 is linked to the lever 5. The levers 6, 7 engage by projections 10, 11 and are connected by a spring 9, which yields if the spindle 4 seizes. Alternatively, the spring 9 may be dispensed with, the parts 10, 11 being connected by a pin, which shears in case of seizure. In a modification the lever 7 is mounted on the control spindle, the lever 5 being dispensed with. In an arrangement permitting operation in both directions in case of seizure, a rod 14<1>, Fig. 4 pivoted to the lever 12, is formed with stops 15<1> 16<1>, engaging pistons 18<1>, 19<1> loose in a cylinder 13<1>, which is pivoted to the lever 5. The space between the pistons 18', 19<1> is supplied witt liquid or gaseous pressure from a main 21 by a pump 22. The fluid-pressure may be replaced by a spring. In another arrangement a lever 35 Fig. 6, operated bv the governor rod 3, is con nected to a disc 36 on the control spindle by a spring detent 38.
Patent GB-463402-A (GB)
Title: Machine for hackling, spreading and drawing manilla, sisal and like hard fibres
IPC: D01B1/10
Filed: 1935-07-26
Abstract: 463,402. Stop-motions for machines for hackling, spreading, and drawing hard fibres. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., and ANDERSON, J. K. July 26, 1935, No. 21238. [Class 120 (ii)] In a machine for hackling, spreading, and drawing manilla, sisal, and like hard fibres of the type having stop-motions operating on undue separation of the drawing-rollers 8, 8a, Figs. 1 and 2, or when a predetermined length of material has been treated, and also having manual belt-shifting apparatus which can be operated independently thereof, the stopmotions include a sliding shaft 15 and coupling devices operated by a weight 23, or spring action, and a forked lever 14 which spans the shaft 15 to hold it fixed or may be raised therefrom to allow the operation of the stop-motion. The machine comprises a belt-shifter 2 which may be operated by a number of hand levers 3, 3<a> spaced along shafts 4, 4<a> which are connected by a rod 5 through a coupling member and stud 6. For automatic operation of the stop-motion levers 9, 9<a> mounted upon pivots 9<b> and connected by rods 11, 11<a> to levers 12, 12<a> fixed upon a cross-shaft 13, are provided with a pin 10 on each lever which rests upon the shaft 8<b> of the upper feed or drawing roller 8. The forked lever 14 is carried by the shaft 13 while the shaft 15 is mounted to slide through brackets 16, 16<a> fixed at 18, 18<a> to the machine frame, and through which a shaft 17 carrying the belt fork 2 is also adapted to slide. The shafts 15, 17 are coupled by arms 19, 19<a> and the arm 19<a> is connected to a chain 20 passing over pulleys 21, 22 and weighted at 23. When the roller 8 is lifted the forked lever 14 is raised through the action of the levers 9, 9<a>; 11, 11<a>; 12, 12<a> and the weight 23 moves the shaft 15 to the left, Fig. 4, thus operating the shaft 17 to shift the belt, and simultaneously through the extension 7 of one of the levers 3<a> oscillating the shafts 4, 4<a> to throw over the hand levers 3, 3<a>. A measuring stop-motion may also be provided comprising gearing 30, Fig. 5, from the roller 8<a> so that when a predetermined quantity of material has been passed over the roller 8<a> a pin 31 on the wheel 30<a> engages a lever 33 loose on the stud 34 and depresses the rod 35 thus causing a lever 36 to operate the fork lever 14. On restarting the machine by re-setting the handle 3 the weight 23 is raised and all parts resume their original positions.
Patent GB-975309-A (GB)
Title: Variable focal length lens system
IPC: G02B15/14
Filed: 1963-05-28
Abstract: 975,309. Variable focal length lens systems. P. ANGERIEUX. May 28 1963 [May 28,1962], No. 21245/63. Heading G2J. A variable focal length optical system comprises four components: the first a fixed converging component; the second a movable diverging component consisting of at least three elements of which two are connected together: the third another diverging component: the fourth a converging component consisting of at least two elements; either the third or fourth component being movable with the second component so that the image remains in a fixed plane. A fifth component is used in combination with the system to obtain a real image. Optical data is given in the Specification.
Patent GB-157474-A (GB)
Title: Improvements in or relating to tunnel furnaces, kilns, ovens and the like
IPC: F27B9/30
Filed: 1918-12-19
Abstract: 157,474. Francart, H. Dec. 19, 1918. Tunnel furnaces; muffle furnaces.-In a tunnel furnace in which the goods are heated out of contact with the combustion products, the heating- flues are formed in hollow flanges 3 projecting from the walls. The air for combustion with gaseous fuel is drawn into the flange from the tunnel through openings 6. The spaces between the flanges may be connected by tubes 7 passing therethrough, and these tubes may be inclined upwards towards the entrance end of the oven to assist the longitudinal displacement of the gases within the tunnel. The flues may be con. nected together in a variety of ways, for example, in series, in parallel, or helically.
Patent GB-1102143-A (GB)
Title: Throttling valve and seats therefor
IPC: F16K5/06
Filed: 1965-05-20
Abstract: 1,102,143. Valves. TEXSTEAM CORPORATION. 20 May, 1965 [26 Aug., 1964], No. 21359/65. Heading F2V. In a rotary cylindrical valve for throttling fluid flow, the closure 22 comprises a cylindrical plug provided with a flow passage defined by a cut out portion in the cylindrical surface thereof and extending between axially displaced parallel walls and a transversely curved face 23 with an axially extending flattened turbulence reducing edge 25. The closure 22 effects an uninterrupted passage to valve chamber 13 through inlet bore and seat 14 whilst effecting a throttling action around the outlet bore against a seat 26 formed of rigid material, e.g. metal or phenolic resin which is sealed within bore 32 by an elastomeric seal ring 31 and is provided with an elastomeric facing 28 which extends to line the bore of the seat and which facing 28 is formed with a compressible sealing lip 39 engaging the plug. The elastomer facing (Figs. 4 and 5, not shown) may incorporate wire cloth (43) over the saddle portion with a hard facing, e.g. of stainless steel, at the lower facing or at both the lower and upper facing of the elastomer or, alternatively, the facing may comprise an elastomer of thermoplastic polymer binder filled with wear resistance ceramic or metallic or tungsten carbide particles. The body 10 of the valve is made of ductile iron and the plug 22 is made of an erosion and corrosion resistant metal.
Patent GB-819178-A (GB)
Title: Open smith's hearth
Inventor: OOSTEN L
IPC: B21J19/02
Filed: 1956-07-10
Abstract: 819,178. Smiths' forges. WIERICKE N.V., DE. July 10, 1956, No. 21369/56. Class 51 (2). An open smith's forge comprises a hearth 1, Fig. 1, and a fire-pot 2, having cooling ribs 3 on the outside communicating via a grate 4 with an exhaust pipe 5 for the combustion gases, which pipe is connected to the central part of a passage 9, which in turn communicates with a pivotally-mounted cowl 10 for shutting off the fire-pot. The exhaust pipe 5 acts as a heat exchanger and includes pipe sections 6, Fig. 2, for combustion gases which terminate in an ash chamber 7. A space 8 around the exhaust pipe serves to supply combustion air, which is heated by contact with the exhaust pipe 5, to the fire-pot 2 via outlets 11 in the hearth. In a modification, the outside of the exhaust pipe 5, Fig. 4, is swept by cool air which is supplied from a chamber 12, Fig. 5, around the space 8, and which is swept away, together with the waste gases from the exhaust pipe, into the ash chamber 7 and exhausted via an upwardly bent pipe section 14. A flap valve or switch to cut off the exhaust fan (not shown) may be provided and which may be coupled with the position of the cowl to interrupt the exhaust of waste gases from the exhaust pipe 5.
Patent GB-460128-A (GB)
Title: Improvements in means for conveying and slicing fuel on furnace grates
IPC: F23H11/22
Filed: 1936-08-01
Abstract: 460,128. Conveying and slicing fuel on furnace grates. STEINMULLER, L., and STEINMULLER, C. H., (trading as STEINMULLER, L. & C.). Aug. 1, 1936, No. 21379. Addition to 451,351. [Class 51 (i)] The rammer 3 for conveying and slicing fuel as described in the parent Specification, is forced against the grate 2 by means such as a weight 30, Fig. 1, supported on a lever 29 pivoted to an extension 27 on one of the chain links 6a of the chain 6 carrying the rammer 3. The lever also carries a roller 31 which bears against the guide rail 32 for the chain 6. A modification is shown in Fig. 2 wherein the extension 27 carries a spring 33, the ends of which bear against the guide rail 32 and may be provided with antifriction rollers 32a.
Patent GB-378189-A (GB)
Title: Improvements in or relating to temple thread cutter for filling replenishing looms
IPC: D03D45/56
Filed: 1931-07-27
Abstract: 378,189. Cutting weft ends in automatic looms. DRAPER CORPORATION, Hopedale, Massachusetts, U.S.A.-(Assignees of Lindsjo, V. ; 165, Dutcher Street, Hopedale, Massachusetts, U.S.A.) July 27, 1931, No. 21411. Convention date, April 16. [Class 142 (iii).] The sliding blade 23 of a temple thread cutter is normally held by a spring 26 in a forward position in which its tail 25 is out of the reach of the lay 2, but is advanced into operative position at weft replenishment by a stronger spring 44 carried by a shaft 43 which is rocked by a slotted cam 40 on the shuttletransfer shaft 36. Specification 377,812 is referred to.