baber/WOPTO huggingface dataset:
Patent GB-823750-A (GB)
Title: Deep well reciprocating pump
IPC: F04B47/00
Filed: 1957-05-16
Abstract: 823,750. Deep well pumps. U. S. INDUSTRIES Inc. May 16, 1957, No. 15592/57. Class 102(1). A deep well pump mounted in tubing T comprises a stationary member S, open to the well liquid through a passage 18 controlled by a valve 17, Fig. 1, in the form of a cylinder 10, an upwardly extending neck 12 which carries a piston 14 at its upper end. A reciprocating member B is in the form of a lower piston 36, working in cylinder 10, a tube portion 26 which slides in neck 12 and a cylinder member 28 which reciprocates relatively to the piston 14, a valve 34 being provided at the top of the tube portion 26. On the upward stroke of member B well liquid is drawn past valve 17 fills the cylinders 10 and 28, the latter cylinder communicating with the tube 26 by ports 30. On the downward stroke of member B liquid from both cylinders is pumped into the well tubing T past valve 34. Ports 15 are provided in the stationary member S for equalising the pressure on the piston 36. The pump is anchored in a seating nipple 44, Fig. 2, secured to the tubing T by a mandrel 38 secured to the pump portion S which carries a seating ring 42 and packer cups 40. The ring 42 has a maximum diameter normally larger than that of the nipple 44 so that it is compressed when the pump is installed and creates a radial force on the nipple. The ring is preferably made of brass and the nipple of steel.
Patent GB-217048-A (GB)
Title: Improvements in or relating to tobacco pipe cleaners
IPC: A24F9/10
Filed: 1923-06-15
Abstract: 217,048. M÷bius, W. June 15, 1923. Cleaners for tobacco pipes.-A handle member 3, Fig. 2, comprising a single folded strip of resilient material, has extending from it two blades 1, screw means 4 acting against the spring of the handle member being provided to adjust the distance between the blades. As shown in Fig. 4, the blades 1 are formed as extensions of the ends of the handle member 5, and adjustment is effected by a conical wedge 7 actuated by a screw 2. The screw may be provided with a milled head 6 or this head may be formed in one with the wedge 7. A cleaner of this construction but having three blades is also described. In further modified forms, a handle member such as 5, Fig. 4, of circular or partcircular vertical section may be combined with either of the screw-adjusting means described. When it is combined with the screw means shown in Fig. 2, the blades themselves may comprise cylindrical segments having their curved surfaces either adjacent to one another or facing outwards, the surfaces when facing outwards being fluted.
Patent GB-373786-A (GB)
Title: Improvements in fishing reels
IPC: A01K89/01
Filed: 1931-05-28
Abstract: 373,786. Fishing - reels. HARDY BROS. (ALNWICK), Ltd. and HARDY, L. R., North British Works, Alnwick, Northumberland. May 28, 1931, No. 15691. [Class 48.] The flyer of a fishing reel is driven from the winding handle by a worm wheel and worms. Rotation of the winding handle 17 rotates the worm e and flyer 28. A building motion is given to the drum 38 by a bell-crank lever k which is connected to an eccentric 35 and a non-rotatable sliding member 33. The forward end of the member 33 carries a disc 36 furnished with a sleeve 37 to form a bearing for the line drum 38. Rotation of the line drum is partially checked by a ratchet 40. To prevent the br aking of lines, the drum is furnished with a slipping clutch comprising a felt washer 46 which is compressed between the drum and a metal washer 50 secured to the sleeve 37. The degree of slit is adjusted by a nut 49.
Patent GB-136863-A (GB)
Title: Leather Stitching Machine.
Inventor: RUDOLPH RAYMOND HENRY
IPC: D05B15/04
Filed: 1918-09-26
Abstract: 136,863. Rudolph, R. H., and Friedman, C. Sept. 26, 1918. Boot-sole sewing-machines; outsole-sewing; feed by awl; lock-stitching; presser-feet; presser-bars. -Relates to leather-sewing machines of the kind in which a curved barbed needle penetrates the work and draws up a loop of thread which is carried by a rotary shuttle, placed above the work, over a thread-carrying bobbin to form a lockstitch, and consists in providing a reciprocating thread-guide 107, Fig. 10, which displaces the bobbin thread in such a manner that the needlethread is looped round the bobbin thread before it is passed over the bobbin, so as to form a double lock-stitch. The guide 107 works in a slot in the presser-foot 108 and is reciprocated by a spring-controlled lever 110 which is oscillated by the lateral movement of the needle and awl-carrying shaft 60 during the feed of the work, the awlholder 96 being rigidly secured to the shaft, and the needle-holder 86 freely mounted thereon. The shaft 60 is reciprocated by a spring-controlled camactuated lever 145 the movements of which are adjusted by a stop 153 to vary the length of stitch, and is rocked by a cam-actuated lever connected by a link 64 to a crank-arm 63 on a bushing 62 slidably keyed to the shaft. The needleholder 86 is independently rocked on the shaft by similar connexions. The needle-threading mechanism consists of an arm 76, Fig. 5, carried by a shaft 75 which is rocked by a slotted crank-arm thereon engaged by a pin on a spring-controlled cam-actuated slide-bar. The needle-thread takeup consists of an adjustable arm 135 on a shaft 133 which is rocked by a crank 132 and link 131 connected to a spring-controlled cam-actuated lever pivoted on the frame. The shuttle shaft 33 is driven through bevel-gearing 31, 32 from a cross-shaft 27 which is driven by chain gearing from the main cam shaft 122. A finger 57<a> carried by a shaft 58 mounted in the shuttle-race is actuated through link connexions by a projection on the shuttle shaft to take the loop of thread on the needle and spread it for engagement by the hook of the shuttle. A finger 38 is actuated at each revolution of the shaft 27 by an arm 29 thereon, to strip the thread from the needle. An arm 49 with a spring 50 bearing on the bobbin is rocked by a cam 30 on the shaft 27 to keep the bobbin free. The presser-bar 101 is carried by arms 102, 103 journaled about the shaft 60 and pressed on the work by a crank-arm 105 on a shaft which has a rearwardly-extending arm carrying an adjustable roller engaging an edge-cam on the main shaft 122.
Patent GB-391993-A (GB)
Title: Improved bit for horses
IPC: B68B1/06
Filed: 1932-06-04
Abstract: 391,993. Bits for horses. ROBERTSON, A. J., 1506, Ashton Old Road, Manchester. June 4, 1932, No. 15720. [Class 62.] A bit comprises an elastic mouth bar B with or without a leather cover b and one or two straps D of leather or rubber or of whipcord or wire cord covered with leather or rubber. A strong pull on the reins extends the mouth-bar causing the straps D to force the animal's jaws apart. Where there is only one strap D it acts on the lower jaw. The straps D may be connected by an elastic member d.
Patent GB-785337-A (GB)
Title: Method of and apparatus for the continuous production of steel
IPC: C21C5/56
Filed: 1955-06-01
Abstract: 785,337. Steel manufacture. ROCHLINGSCHE EISEN-UND STAHL-WERKE GES. June 1, 1955 [Feb. 11, 1955], No. 15730/55. Class 72 A method of producing steel from pig iron by passing the molten pig iron through a plurality of reaction zones each of which effects a desired step in refining comprises charging the metal from an initial reaction chamber to the first reaction zone of the plurality of interconnected zones, the transference of metal from each zone to the next in series being by flow of metal from beneath the surface in each zone so that slag and gases from one zone do not pass into the next. As shown, the metal in an initial chamber I may be treated with lime or soda to remove sulphur and then poured into a first reaction chamber II, which may be circular in section and have an acid lining, where silicon and part of the carbon are removed by oxidation with gases blown through tuyeres 4 situated just above the surface of the metal. Cooling agents, e.g. scrap or iron ore, may be added through shoots 5. The metal then passes through a channel 6 at the bottom of chamber II into a second reaction chamber III, of circular section and having a basic lining, where the remainder of the carbon and phosphorus are removed by oxidation with gases blown through tuyeres 4 and iron ore, scrap or lime added through a shoot 7 to reduce the temperature to slightly above the melting point of the metal. The metal passes through a channel 11 into a third reaction chamber IV where it may be deoxidized, and finally through a channel 16, situated above the metal surface, to a storage chamber V, where alloying may take place. The slag may be removed in each chamber and carbon monoxide produced in chambers II and III burned. Chamber IV is heated to bring the temperature of the metal, which was reduced in chamber III. to the required value, and in chamber V the temperature is maintained by burners 17.
Patent GB-1108035-A (GB)
Title: Rosin size and paper sized therewith
IPC: C08L93/04
Filed: 1965-04-13
Abstract: Paste rosin size has dissolved therein as a fortifying agent a cationic "non-thermosetting" polymer containing a plurality of alkylene linkages and at least 10 amine nitrogen atoms per molecule. In this context "non-thermosetting" includes fully thermoset polymers. Specified classes of polymers are (a) polyalkylene-polyamines e.g polyethyleneimine or the equimolar reaction product of ethylene dichloride and triethylene tetramine or 3,31-iminobispropylamine; (b) linear polyamidopolyamines, e.g. from adipic acid and tetraethylenepentamine; (c) reaction products of (b) with an epihalohydrin; (d) linear polycondensates of methylenebisacrylamide and ethylene diamine.ALSO:A cationic "non-thermosetting" (including previously fully thermoset) polymer containing a plurality of alkylene linkages and at least 10 amine nitrogen atoms per molecule is dissolved in paste rosin size as a fortifying agent (see Division C3).  Sized paper may be obtained by impregnating cellulose fibres with the fortified size, sheeting the fibres and drying the sheets Alum may be added to the fibres after addition of the size.  Specified classes of polymers are (a) polyalkylene-polymines, e.g. polyethyleneimine or the equimolar reaction product of ethylene dichloride and triethylene tetramine or 3, 3\sv-iminobispropylamine; (b) linear polyamidopolyamines, e.g. from adipic acid and tetraethylene-pentamine; (c) reaction products of (b) with an epihalohydrin; (d) linear polycondensates of methylenebisacrylamide and ethylene diamine.
Patent GB-691477-A (GB)
Title: Improvements in or relating to telescopic shock absorbers
Inventor: STEPHENS RONALD BERTRAM
IPC: F16F9/49
Filed: 1950-06-26
Abstract: 691,477. Hydraulic shoch-absorbers. ARMSTRONG'S PATENT CO., Ltd. June 26,1951 [June 26, 1950], No. 15855/50. Class 108 (iii). A telescopic shockabsorber comprises a piston - rod 11 passing through a boss 12 which projects into one end of a cylinder, and a damping member 15 complementary to the boss 12, mounted so as to be axially - displaceable on the piston-rod 11, and provided with a least one port 15c which is closed when the member 15 makes contact with the piston. The member 15 has axial lost-motion on a reduced piston-rod portion 11a. In operation of the shock-absorber described, on inward movement of the piston, liquid flows freely through four ports 15c. On outward movement the end face 15a of the sleeve 15 seats on the piston end-face 16a so as to close the ports 15c. At the end of the-stroke, the annular portion 12 of the cylinder closure penetrates the sleeve 15 with a damping action. The portion 12 may be tapered (Fig. 3, not shown), or may have a leak groove of uniform or tapered cross-section. The ports 15c are circumferentially-spaced recesses in the bore of the end face 15a. They may, however, be replaced by two diametricallyopposed orifices, Figs. 3 and 4 (not shown), in the end-face 15a.
Patent GB-637969-A (GB)
Title: Improvements connected with safety fittings for electric lamps for mines
IPC: F21V23/04
Filed: 1948-06-12
Abstract: 637,969. Elongated-lamp fittings. REVO ELECTRIC CO., Ltd., and FELTON, A. E. June 12, 1948, No. 15868. [Class 75 (iv)] [Also in Group XXXVI] In a mine safety lamp fitting a, a connection box b is plugged thereon and is interlocked by a cam pin b, which engages a recess a<SP>3</SP> in a dowel pin a<SP>2</SP> on the lamp fitting, the cam pin bl also actuating the switch contacts c in the box so that the fitting and the box can only be separated when the switch contacts are open. To prevent the switch contacts being closed when the fitting and the box are separated, a latch b<SP>2</SP> is pushed over the cam pin by a spring b<SP>4</SP> thereby preventing the rotation of the cam pin b<SP>1</SP>.
Patent GB-241135-A (GB)
Title: Improvements in the catalytic oxidation of ammonia
IPC: C01B21/26
Filed: 1925-06-19
Abstract: In the catalytic oxidation of ammonia a gas mixture substantially free from gases alien to the reaction and containing only a small amount of ammonia is used, and the mixture is repeatedly subjected to the catalytic treatment, with the addition of small quantities of ammonia between each treatment. In one example a mixture of nine volumes of oxygen with one of ammonia is passed over a heated platinum catalyst.  After removing part of the heat of the reaction, a further quantity of ammonia equal to between six and eight per cent of the total volume of gas is added, and the catalytic treatment is repeated.  The addition of ammonia and catalysis may be repeated a third and fourth time in order to obtain a high concentration of oxide of nitrogen.  In another example, the reaction gases after catalysis are passed repeatedly over the same contact mass or over a series of contact masses while continuously introducing a small amount of ammonia and a corresponding amount of oxygen or gas rich in oxygen, and at the same time withdrawing a corresponding amount of reaction gas rich in nitrogen oxides after each catalytic treatment.
Patent GB-573384-A (GB)
Title: Preparation of hydracrylic acid
IPC: C07C51/02
Filed: 1943-09-28
Abstract: Hydracrylic acid is prepared by treating sodium, potassium or calcium hydracrylate with an acid stronger than hydracrylic acid in an aqueous solution maintained at a temperature between about 30 DEG  C. and about 50 DEG  C., the acid and salt being in substantially stoichiometrically equivalent amounts.  For this purpose, solutions of sodium, potassium or calcium hydracrylates may be prepared by adding ethylene cyanohydrin to a hot aqueous solution of a strong base of these metals  In an example, ethylene cyanohydrin is hydrolysed by sodium hydroxide to sodium hydracrylate, ammonia removed by volatilization, the solution cooled and sulphuric acid in an amount stoichiometrically equivalent to the sodium hydracrylate added.  Most of the water is then removed by evaporation under reduced pressure and the resulting slurry either extracted with a solvent such as ethanol or acetone, which is then removed by distillation or, alternatively, subjected to centrifuging.  Any strong mineral acid may be used for the reaction, e.g. sulphuric, hydrochloric, nitric (diluted) and phosphoric acids and organic acids such as the chloracetic acids, maleic acid and oxalic acid. Hydracrylic acid may be used to prepare acrylic acid and its esters. The esters of hydracrylic acid may be used as solvents in coating compositions and as plasticizers.  Specification 573,702 is referred to.
Patent GB-622227-A (GB)
Title: Improvements in and relating to weighing balances
IPC: G01G23/32
Filed: 1946-05-27
Abstract: 622,227. Weighing apparatus. GREEN, S. R. May 27, 1946, No. 15973. [Class 143] A precision balance employing an optical system for projecting the finer increments of weight onto a screen, has the screen located at the base of the balance case and an index line is traversible across the screen by a vernier indicator beneath the base. The screen 8 forms a sloping front to a housing 6 mounted on the base 1 of the balance, and an image of a graticule 4 is projected onto it by a lens 10 and mirrors 11, 14 in conjunction with an upper mirror 13 supported by the beam column 2. An index line 15 is mounted in a frame 16 traversible along a rod 17 by means of a rack 19 and pinion 20 fast with a manually rotatable dial 23. This dial is graduated in tenths of the graduations of the graticule so that, by bringing the index 15 back to the nearest projected graduation, tenths can be read off the dial against an indicating arm 24.
Patent GB-504229-A (GB)
Title: Improvements in automatic signal interference control for radio receivers
IPC: H03G5/26
Filed: 1938-05-30
Abstract: 504,229. Wireless receiving systems ; valve circuits. HAZELTINE CORPORATION. May 30, 1938, No. 16133. Convention date, June 18, 1937. [Class 40 (v)] In a modulated carrier wave receiver, modulation of the carrier, of a different type from the signal modulation, and produced by undesired disturbances is utilized to reduce the effects of the latter. In the embodiment described in detail, frequency modulation of a received carrier produced by disturbances is utilized to reduce the effect of the same disturbances in the amplitude signal modulated channel. As shown, the receiver comprises an adjustable band-pass I.F. amplifier 23, limiter 24, detector 25, 26, A.F. amplifier 27, adjustable band-pass A.F. amplifier 29 and an output stage 30 which may be muted, disturbance control being exerted upon the stages 23, 29 and 30. The backward coupling valve 60 in stage 23 is controlled by the output from a rectifier 94 fed from an auxiliary wide band amplifier 89 fed from the limiter 24. The amplifier 89 also feeds a limiter 102, amplifier 104 and frequency modulation detector 106 ... 115, followed by a rectifier 116 ... 126 controlling the grid bias of the A.F. amplifier 27 over lead 40a. The frequency modulation detector also feeds a highpass filter arrangement 129 ... 132 supplying an A.F. amplifier 133, the output of which is rectified by a biassed- ,back rectifier system 138 ... 143 so that transient noises of greater than a predetermined amplitude provide muting bias for the output stage 30 over lead 44. This bias is also applied to the forward coupling valve 59 of stage 23 over lead 45 and used to control the stage 29 over leads 46, 47, as described in Specification 504,230. A beat-note responsive amplifier 151 is also connected to the output of the frequency-modulation detector and its rectified output, from the system 154 ... 158, used for control purposes. over leads 51, 52, 53 connected to the leads 45, 46, 47 respectively, diodes 51a, 52a, 53a acting as unilateral conductors preventing short-circuiting of said leads. Specification 430,787 also is referred to.
Patent GB-722844-A (GB)
Title: Photographic diazotype material and photomechanical printing plates
IPC: G03F7/022
Filed: 1952-06-26
Abstract: 2-, and also 3-phenanthrol are coupled with diazotized sulphanilic acid and 4-benzoyl-1-naphthol is coupled with diazotized aniline in dilute alkaline solution to form azo dyes used as intermediates (see Group IV (b)) for making phenanthroquinone diazides.ALSO:Phenanthraquinone - 1 : 2 - (diazide) - 1 and phenanthraquinone-3 : 4-(diazide)-4 (example 1) are made by coupling 2- and 3-phenanthrol respectively with diazotized sulphanilic acid, reducing to 1-amino-2- and 4-amino-3-phenanthrol and diazotizing these.  Naphthoquinone - (1 : 2) - diazide - (2) - phenyl-sulphone-(4) (example 2) is made by reacting thiophenol with 1-nitro-4-chloro-naphthalene to form 1-nitro-naphthyl-phenyl-sulphide, oxidizing this to form the sulphone, reducing to the equivalent amino compound, diazotizing, converting to 2-nitroso-1-hydroxy-naphthalene - phenyl - sulphone - (4) by boiling without separating the diazo compound, reducing and diazotizing.  The corresponding naphthoquinone - (1 : 2) - diazide - (2) - naph - thyl-sulphone-(4) is made similarly.  Naphthoquinone - (1 : 2) - diazide - (2) - 41 methyl - phenyl - sulphone - (4) (example 3) is made by a method analogous to that of example 2. Benzoquinone - (1 : 2) - diazide - (2) - naphthyl - sulphone - (4) (example 4) is made by reacting 1-thionaphthol with 1 : 4-chloro-nitro-benzene to produce 1-nitro-phenyl-naphthyl-sulphide-(4) which is oxidized to form the corresponding sulphone, reduced to the aminosulphone, diazotized and added to boiling sulphuric acid to form 1-hydroxy-phenyl-naphthyl-sulphone-(4), nitrated to 1 hydroxy-2-nitro-phenyl-naphthyl-sulphone-(4), reduced to the amino equivalent and diazotized.  1 : 2 - Diazo - phenanthrol - (3) - x - sulphon - anilide (example 5) is made by treating 1 : 2-diazo-phenanthrol-(2) with chlorsulphonic acid and the product with aniline.  3 : 4-Diazo-phenanthrol-(3)-x-sulphonanilide and 1 : 2-diazophenanthrol - (2) - x - sulphon - naphthylamide are made similarly.  1 : 2 - and 3 : 4 - diazo - phenanthrol - (3) - x - sulphon - N - ethyl - anilide (example 6) are made by treating the corresponding sulphochlorides with ethylaniline.  Dinaphthyl - sulphone - (1 : 11) - diquinone - (3 : 4 : 31 : 41) - bisdiazide - (3 : 31) is made as described in example 7.
Patent GB-161714-A (GB)
Abstract: 161,714. Saunder, R. E. Jan. 21, 1920. Two-stroke-cycle engines.-In a double-acting engine, a piston 4 reciprocates inside a stationary cylinder 3 and over a fixed member 11. Pump charges are compressed in the crank chamber 1 and in the end of the cylinder remote from the crank-shaft, the charges from the crank chamber being transferred to the combustion space 4* through a passage 15a; the charges from the upper pump space are delivered to the combustion chamber x through a passage terminating in ports 21, 23. The admission ports to the pumps are shown at 15, 16 respectively. Cooling-water is circulated through the member 11.
Patent GB-1354523-A (GB)
Title: Polyurethane elastomers and a process for their preparation
IPC: C08G18/65
Filed: 1971-05-21
Abstract: 1354523 Alkyl diaminobenzoates BAYER AG 21 May 1971 [27 May 1970] 16191/71 Heading C2C [Also in Division C3] Diamines of the general formula (in which R is alkyl) are prepared by esterification of 3,5- or 2,4-dinitrobenzoic acid followed by reduction of the intermediate alkyl dinitrobenzoate with Raney nickel or with iron. In Specific examples the preparation of methyl- 3,5 - diaminobenzoate, isobutyl - 3,5 - diaminobenzoate, 2 - ethylhexyl - 3,5 - diaminobenzoate, stearyl - 3,5 - diaminobenzoate and methyl-2,4-diaminobenzoate is described.
Patent GB-309776-A (GB)
Title: Improvements in or relating to spinning mules
IPC: D01H3/00
Filed: 1928-06-05
Abstract: 309,776. Lees & Co., Ltd., A., and Guy, W. June 5, 1928. Mules.-In a mule for spinning fine yarns at a high spindle speed the countershaft 9 carries two fast pulleys 11, 12 driving by belts pairs of fast and loose pulleys 13, 14, 15, 16 on the rim shaft 1. The smaller pulley 12 drives the roller throughout the whole of the outward run and the spindles for a portion of the run, whilst the larger pulley 11 drives the spindles at an increased speed for the remainder of the run. The countershaft is driven from the line shaft at a constant speed by fast and loose pulleys 9<a>. The pulley 13 is fast on the rim shaft 1 and the pulley 14 is loose. The pulley 15 is mounted on a sleeve 17 loose on the rim shaft 1 and the pulley 16 is loose on this sleeve. The sleeve 17 carries a pinion 19 which drives through gearing 20, 22, a pinion 23 loose on the rim shaft, which pinion drives the rollers through the usual arrangement. The pulley 15 is connected to the rim shaft by a free wheel roller or other clutch 18. At the commencement of the draw the pulley 12 drives the pulley 15 and through the clutch 18 the rim shaft 1. The other belt is on the loose pulley 14. At the required stage in the draw the carriage operates a lever 25 and moves the belt on to the fast pulley 13. The rim shaft is thereby driven at a higher speed and overruns the clutch 18. The belt on the pulleys 12, 15 continues to drive the rollers through the pinion 23 at a constant speed. Reference has been directed by the Comptroller to Specifications 10159/97, 8989/01, 14114/01, 5775/05 and 10221/12.