baber/WOPTO huggingface dataset:
Patent GB-252865-A (GB)
Title: Improvements in blotting pads
IPC: B43L17/04
Filed: 1925-05-07
Abstract: 252,865. Gaunt, C. F. May 7, 1925. Blotting - appliances.-In blotting- pads of the kind piovided with a sping - pressed or resilient plate around which the blotting- paper is adapted to be secured, the resilient plate 4 is mounted beneath a carrier plate 1 which is provided with a central screw stud 3 extending through a central hole in a cover plate 6, so that the plates 1, 6 can be drawn together by means of a screw-threaded handle 10 to clamp the ends of sheets 2 of blotting-paper extending around the underside of the resilient plate 4 and over the ends of the plate 1. The plate 4 is of bowed form and is attached at one end only to the plate 1 by means of rivets 5. The edges 7 of the cover plate 6 are flanged downwaidly to enclose the edges of the plate 1, and the central portion of the plate 6 is provided with an annular boss 8 forming a recess 9 to receive the lower portion of the handle.
Patent GB-896684-A (GB)
Title: Capacitatively tuned tuning unit
IPC: H03D9/06
Filed: 1959-04-08
Abstract: 896,684. Resonant lines. NURNBERGER SCHWACHSTROM-BAUELEMENTE FABRIK G.m.b.H. April 8, 1959 [April 12, 1958; May 2, 1958], No. 11862/59. Class 40(8). A television tuning circuit comprises two r.f. band-pass filters and the tank circuit of the local oscillator formed by three #/2 coaxial lines 2, 3, 4 shaped in the manner shown so that they can be accommodated in a rectangular box 22 together with compartments 1, 5 which house components of the input and i.f. circuits. The valves 6, 7 of these circuits are mounted on the box. The lines are tuned by capacitors 14, 15, 16, the rotary plates of whch are mounted on a common shaft 20. In a modification of the Fig. 3 construction, the oblique sections 2c, 3c, 4c of the lines are merged into the end sections by curved bends. in a further modification, the intermediate sections of the lines lie at right angles to the end sections.
Patent GB-1529671-A (GB)
Title: Process for the preparation of etherified acetal polymers
IPC: C08K5/43
Filed: 1975-12-17
Abstract: 1529671 Etherification of aldehyde polymers SOC ITALIANA RESINE SIR SpA 17 Dec 1975 [20 Dec 1974] 11923/78 Divided out of 1529475 Heading C3P The unstable terminal hydroxy groups of acetal polymers (derived from aldehydes), especially polyoxymethylenes, are etherified with an orthoester, an epoxide or an acetal in a liquid reaction medium in the presence of one or more of the following nitrogen compounds:- (A) wherein R 22 , R 23  and R 24  are H, C 1-20  alkyl, substituted or unsubstituted phenyl or substituted or unsubstituted naphthyl, and (B) wherein R 25 , R 26 , R 27  and R 28  are C 1-10  alkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted naphthyl, and Z is a substituted or unsubstituted phenylene, alkylene or cycloalkylene group. Suitable etherifying agents are methyl and ethyl orthoformates, orthoacetates and orthocarbonates; ethylene and propylene oxides; and methylal, 1,1-dimethoxyethane and 1,1-dimethoxydimethyl ether. The additives serve to promote a more efficient etherification.
Patent GB-773989-A (GB)
Title: Band grinding machines
IPC: B24B21/00
Filed: 1954-04-26
Abstract: 773,989. Grinding. URQUHART, A. May 2, 1955 [April 26, 1954], No. 11930/54. Class 60 [Also in Group XXVIII] An endless abrading band 5 is supportedon a pair. of relatively adjustable rollers 3, 4 carried by a table 2 and driven through change-speed gearing in a casing 6 by a motor 7. The table 2 is carried by a suction casing 8 one side of which provides a work rest 9 and the base of which comprises a quadrant 11 projecting into a base pedestal 1 and. pivoted thereto at 12. A set screw 14 enables the grinding head to be held at the desired inclination.
Patent GB-1157320-A (GB)
Title: Improved Film-Forming Compositions
Inventor: PARK JOSEPH
IPC: C08K5/101
Filed: 1967-03-14
Abstract: 1,157,320. Fluorine compounds. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 March, 1968 [14 March, 1967], No. 11956/67. Heading C2C. [Also in Division C3] Esters containing fluoro groups are prepared in examples by the reaction of: (1) pentaerythritol, acetic anhydride and pentadecafluoro-octanoic acid (PFOA), giving the triacetate-mono-PFOA-ate; (2) H(CF 2 ) 10 CH 2 OH or (3) H(CF 2 ) 6 CH 2 OH and phthalic anhydride; (4) triethylene glycol and PFOA chloride, giving the monoester; (14) castor oil and PFOA; (17) the lauric acid " diester " of trimethylol amino methane and PFOA which gives 4- lauroylmethyl - 4 - PFOA - oylmethyl - 2 - lauryl-oxazoline; commercial rosin with (20) H(CF 2 ) 6 CH 2 OH, (21) H(CF 2 ) 10 CH 2 OH and (22) maleic anhydride followed by H(CF 2 ) 10 CH 2 OH; and (23) (C 2 F 5 ) 2 (CF 3 ).C.CH 2 COOH (prepared by reacting tetrafluoroethylene pentamer with NaOH or KOH and conversion of the resulting salt to the free acid) with SOCl 2  and then diethylene glycol monoethyl ether. The lauric acid " diester" of trimethylolamino propane is made by esterifying the appropriate free acid and free alcohol (Ex. 17). In Ex. 7, H(CF 2 ) 6 CH 2 OH is reacted with P 2 O 5 , giving a mixture of the mono- and diorthophosphates.
Patent GB-791366-A (GB)
Title: Production of metallic iron and titanium concentrates
IPC: C22B34/12
Filed: 1956-04-19
Abstract: A process for obtaining metallic iron and a titanium containing concentrate from titaniferous iron ores comprises mixing the ore with an alkali metal compound in amount equivalent to 2-6 per cent of alkali metal oxide, calcining the mixture under reducing conditions at 1100-1200 DEG C. to reduce the iron to metal without melting or sintering, separating excess reducing agent and ash, comminuting the remainder, and separating the iron from the titanium-containing material.  The alkali metal compound may be sodium chloride, sodium carbonate, sodium hydroxide, lithium chloride, or potassium carbonate.  Reducing conditions may be obtained by the admixture of carbonaceous material or by the use of a reducing atmosphere.  The iron may be separated magnetically. The raw materials may be ground to pass a 20-mesh sieve and then be formed into pellets.
Patent GB-1132503-A (GB)
Title: Operations in a well
IPC: E21B43/01
Filed: 1966-03-18
Abstract: 1,132,503. Wells. ESSO PRODUCTION RESEARCH CO. 18 March, 1966 [20 May, 1965], No. 12024/66. Heading E1F. In a method of conducting operations, such as sand washing, circulation, stimulation, cementing, or acidizing, in a well 12, a pipe 27 is pumped through a conduit 19 into the well. The pipe which may be coated with buoyant material or be of double walled section has a deformable or a valved piston 34 at its free end. The pipe may carry a series of buoyant enlargements or a series of centralizers. During sand washing the fluid is supplied through the pipe and is returned through the annulus in the conduit surrounding the pipe. The pipe may be used for the production of oil or gas.
Patent GB-759956-A (GB)
Title: Improvements in or relating to gelatinous explosive compositions
IPC: C06B31/56
Filed: 1954-04-26
Abstract: 759,956. Gelatinous blasting explosives. HERCULES POWDER CO. April 26,1954 [Oct. 26, 1953], No. 12057/54. Drawings to Specification. Class 9(2) Gelatinous blasting explosives comprise an explosive oil containing a liquid explosive nitric ester, an amount of hydrogenated terphenyl not substantially in excess of the amount miscible with the explosive oil, and an amount of nitrocellulose sufficient to form a gel with the explosive oil and hydrogenated terphenyl. The hydrogenated terphenyl may be added as desensitizing plasticizer to gelatin dynamites or semigelatin dynamites comprising 50-80 per cent oxidizing salts, e.g. ammonium, sodium, or potassium nitrates, or sodium chlorate or perchlorate, 1-12 per cent carbonaceous substances, e.g. meals, pulps or starch, and 0.3-1 per cent antacid, e.g. chalk, as so-called dope ingredients. The dope ingredients in semigelatins may total 5-85 per cent. Sulphur may be included as additional fuel. The nitric ester in amount 10-40 per cent may be any nitrated polyhydric alcohol, e.g. nitroglycerin. tetranitrodiglycerin, ethylene glycol dinitrate, or mixtures 5-30 per cent aromatic nitrocompound may be added as desensitizer to the nitric ester, e.g. mono-, di-. or tri-nitrotoluene, or nitro-phenol, - naphthalene, -benzene, or -xylene. The amounts of hydrogenated terphenyl and nitrocellulose may be 0.1-5 per cent and 0.2-2 per cent respectively. In examples semigelatin dynamites are disclosed containing: nitroglycerin/ethylene glycol dinitrate 20/80. 70/30, and 30/70, dinitrotoluene/orthonitrotoluene 66/34, ammonium and sodium nitrates, in admixture with hydrogenated terphenyl, nitrocellulose, starch, wood pulp, and chalk. The compositions are preparedby forming' an initial gel of the nitric ester, aromatic nitrocompound, and hydrogenated terphenyl with nitrocellulose and mixing the gel with the remaining dope ingredients. The ammonium nitrate is coated with 80/ 20 rosin/paraffin, of size Œ10 per cent held on 40 mesh screen, and at least 25 per cent pass 100 mesh, and of density 1.06 g./cc.
Patent GB-1169941-A (GB)
Title: Improvements in or relating to Looms
IPC: D03C1/12
Filed: 1966-03-21
Abstract: 1,169,941. Dobbies. RICHARDSON, TUER & CO. Ltd. and K. J. FAY. 27 Feb., 1967 [21 March, 1966], No. 12273/66. Heading DIE. A positive double lift open shed dobby consists of operating members 12, each coupled by a connecting rod 13 to a heald frame. Each end of an operating member carries a pin 24, which can be engaged in a hole 25 in an actuator 22, whereby the operating member can be turned through 180‹ about a shaft 10. The actuating members 22 move bodily in a semi-circle while remaining horizontal; both move to the top of their travel to form the shed for one pick and to the bottom for the next pick. The two pins 24 on the operating members and the holes 25 in the actuators are at different distances from the shaft 10 so that each pin can engage only one hole. Each pin 24 is carried by a flap 23 which rocks about an axis 23A under the control of a pattern 34. Pusher needles 28 rock a cam 26 about its pivot 26A, causing a cam groove in its periphery 27 to rock the flap by acting on a follower 26B.
Patent GB-474161-A (GB)
Title: Improvements in and relating to weaver's knotters
IPC: B65H69/04
Filed: 1936-04-30
Abstract: 474,161. Knot-tying devices. HIGGINS, F. W., and GOLDSMITH, W. H. April 30, 1936, No. 12339. Convention date, May 10, 1935. [Class 112] In a hand-carried knotter tying weavers' knots, both thrum ends are cut between the knot and the bill after the knot has been tightened. The knot may be tightened against a post which determines the position of the knot and permits cutting the thrum ends closer to the knot. As applied to the knotter described in Specification 394,220, a post 65, Figs. 8 and 9, which is fixed to the knotter frame 13, is positioned between the bill and the thread clips on the swinging arm 36. It is provided with a shoulder b to detain the thread wand a curved forward edge to guide the thread x. Scissors 70, 71 are mounted on a plate, not shown, which is moved forward by a cam on the operating quadrant. The moving blade has a pin-and-slot connection with the frame 13 which causes the scissors to close and cut the threads as it is moved forward. The knotting bill is positively stopped, in the position shown in Fig. 9, by the engagement of a stop on the quadrant with a shoulder 80, Fig. 6, on the bill shaft. Subsequent forward movement of the quadrant carries the bill shaft forward in unison with the cutters. In this movement, a spring is compressed by a collar 85 and subsequently returns the bill shaft to its normal position where it is held by a latch. In order to facilitate the disengagement of the thread loop from the bill during the tightening of the knot the movable member is bevelled as shown at c, Fig. 8, and a fixed cam surface 86 is placed with its forward edge slightly forward of the corner d. Alternatively, the movable member is provided with a curved cam heel 87, Fig. 11. The finger piece of the knotter referred to may be adjustably hinged to the quadrant and an additional wing piece 64 is provided for guiding the thread into the forward slots. The knot-positioning post and the thread cutters 70, 71 are also described as applied to the knotters of the same general kind as those described in Specifications 279,195, [Class 112], and 423,422.
Patent GB-641125-A (GB)
Title: Improvements in or relating to swivel joints for pipes and tubes
IPC: F16L27/08
Filed: 1948-05-05
Abstract: 641,125. Rotary pipe joints. CHIKSAN CO. May 5, 1948, No. 12380. Convention date, Feb. 9. [Class 99(i)] The socket 11 of a tubular member A is formed with a shoulder 21 and has curved and straight intermediate portions 22, 23 respectively rotatably engaged by a bearing projection 27 and by an end portion 25 of a tubular member E which is coupled tc member A by a sleeve 13 provided with an internal curved seat 36 rotatably engaging the projection. The sleeve may threadedly engage the socket and have a flange 32 to form the seat. A rubber ring 50, having an inner concave side 51 and a metal ring 53 embedded therein, may seal with shoulder 21 and face 44 of member B. The free ends of the numbers may each be formed with a head to which the flangelike part of a pipe is connected by a threaded sleeve.
Patent GB-125604-A (GB)
Title: Improvements in and relating to Ordnance.
Inventor: CONSTANTINESCO GOGU
IPC: F41A25/02
Filed: 1916-06-19
Abstract: 125,604. Constantinesco, G., and Haddon, W. June 19, 1916. Ordnance breech mechanism; smoke and gases, defiecting or disposing of.-Consists in utilizing the elasticity of liquids for storing the recoil energy of guns and for returning them to the firing position; also in using part of the stored energy to operate the breech mechanism or an air-blast device for expelling the products of combustion from the gun. Vegetable oils which do not vary appreciably in viscosity with rise of temperature are preferably employed. The apparatus is stated to be applicable to guns in which compressed gases or liquids are used as propellants. Fig. 1 shows one construction in which a piston 13 connected with the gun moves in a cylinder 24 which communicates by way of a spring-controlled valve 16 with an annular chamber 25. The whole device is filled with liquid through a passage 21, the air escaping through a passage 22. On recoil, the piston enters the cylinder 24, and the valve 16 is opened to allow liquid to pass into the chamber 25, where it is compressed by the force of recoil. The subsequent expansion of the liquid which returns the gun to battery occurs through a passage 19 and an adjustable needle valve 20. For cooling purposes. the liquid may, instead of passing directly through the passage 19, be led through a radiator.
Patent GB-710251-A (GB)
Title: Improvements in and relating to machines for emptying crates and like containers of bodies such as crown corks
IPC: B65B69/00
Filed: 1950-05-18
Abstract: 710,251. Unpacking. YOUNG, S. J. May 18, 1951 [May 18, 1950], No. 12509/50. Class 94'(1) [Also in Group XXX] Apparatus for emptying crates and like containers of articles such as crown corks and the like trapped in them, said containers having openings in their sides and tops, comprises a series of three or more steps and a conveyer or conveyers for urging the crates over the steps so that each crate tips over successive steps, performs a quarter turn or approximately so at each tipping and receives a jolt at about the termination of each quarter turn. As shown in Figs. 1, 2 the crates are first conveyed on a pair of endless chains 2, 2 passing round sprockets 3, 4 to a stop 36 where they remain until one of a number of pusher bars 21 connected to a pair of endless chains 15 passing round sprockets 16, 17, 18, 19 are in a position to receive the back face of a crate after it has tipped over a roller 37. Such tipping is effected by rollers 34 at the ends of the preceding bar 21 engaging cams 33 on plates 32 depending from rails 12 which serve as guides for the crates on the chains 2, 2. These rails 12 are supported by channels 11 which serve as guides for the chains and form part of the framework 7 on which are supported the shafts 5 of the sprocket wheels 3, 4. When the rollers 34 engage the cams, the frame 7 is tipped in an anti-clockwise direction about a shaft 8 so as to lift the bottom front edge of the orate clear of the stop 36. The orate is thereupon fed forward by the chains 2 assisted by a roller 37 driven clockwise from the shaft of the sprocket wheel 16 by chain-and-sprocket gearing 38. The crate tips over the roller and is caught end-on by track rails 13. Any corks falling from the crate are caught by a tray 43. The tray is now carried forward by a pusher bar 21 and tips over a step 14 ism the rails 13 to be jolted and further emptied and is later tipped over a roller 40 to rest on rails 13a, any loose bodies therein falling into a tray 44. A pusher bar 21a on a pair of endless chains 15a then feeds the crate over a step 14a and finally raises it to a delivery point The conveyers are driven in series through chain-and-sprocket gearing by a motor 25. In a modification, Fig. 3, the crate is delivered over the roller 40 to a washer 45 trough which the crate is conveyed by an endless conveyer 46 and then tipped over a roller 47 to a track 13a. The steps may be formed by the top flight of a single endless conveyer being suitably guided over rollers.
Patent GB-1096836-A (GB)
Title: Absorbent article
IPC: A61F13/20
Filed: 1966-03-22
Abstract: An absorbent article, for example a baby's napkin or pilch, having a high liquid retentivity comprises a cellulose ether capable of swelling in water to form a colloid and thus to absorb a considerable amount of liquid.  The cellulose ether is distributed in granular or powdered, non-fibrous form between layers of a cellulose product, for example between layers of paper or of carded cellulose fibres.  The cellulose ether may be methyl ethyl cellulose, hydroxypropyl methyl cellulose or a carboxy alkyl cellulose (or a salt thereof) in which the carboxy alkyl groups contain up to 4 carbon atoms, for example carboxymethyl cellulose (or its sodium or potassium salt).  Mixtures of cellulose ethers may be used.ALSO:An absorbent article having a high liquid retentivity comprises a cellulose ether capable of swelling in water to form a colloid and thus to absorb a considerable amount of liquid.  The cellulose ether is distributed in granular or powdered, non-fibrous form between layers of a cellulose product, for example between layers of paper or of carded cellulose fibres.  The cellulose ether may be methyl ethyl cellulose having a degree of substitution between 19% and 30% or hydroxypropyl methyl cellulose having a degree of substitution between 4% and 12%, or a carboxy alkyl cellulose (or a salt thereof) in which the carboxy alkyl groups contain up to 4 carbon atoms, for example carboxy methyl cellulose (or its sodium or potassium salt) having a degree of substitution at least of 13%.  Mixtures of cellulose ethers may be used.  The absorbent article may be a tampon or sanitary towel.  Alternatively, the absorbent article may be used when in a wetted state; as exemplified, a cellulose ether was applied to cotton wool which then was soaked with aqueous boric acid solution to form a compress which was covered with gauze.
Patent GB-988509-A (GB)
Title: Improvements in or relating to elastic sleeve valves
IPC: F16K7/02
Filed: 1964-03-25
Abstract: 988,509. Valves. G. BERGSTRAND. March 25, 1964, No. 12562/64. Heading F2V. A valve housing 10 with inlet 11 and outlets 12, 13 contains a rubber sleeve 14 with annular beads 16, 17, an actuating slider 23 with a reduced section 26, and an intermediate sleeve 20 of flexible but inelastic plastic material having a low coefficient of friction, such as nylon. For high pressures the sleeve 20 may be of spring steel. At regions corresponding to the beads 16, 17 the sleeve 20 has axially extending slits 21, 22 which pass through the thickness of the sleeve in a non-radial direction to facilitate radial contraction by the sleeve 14 of either region of the sleeve 20, depending upon the position of the reduced section 26 of the slider, as shown in Fig. 5. In a modification, the sleeve 20 is omitted, beads 16, 17 project internally as well as externally from the sleeve 14, and the latter has perforations to admit pressure to its interior. In another modification, the sleeve 20 is omitted, the sleeve 14 has a smooth internal bore and the actuating slider has a single enlarged portion. Further modifications are referred to in which the beads 16, 17 are omitted, the slider being shaped to expand the sleeve into bead-like bulges or the smooth sleeve 14 coacting with ribs in the housing.
Patent GB-888358-A (GB)
Title: Improvements in or relating to practice projectiles for artillery
IPC: F42B14/02
Filed: 1960-04-08
Abstract: 888,358. Practice projectiles. DYNAMIT NOBEL A.G. April 8, 1960 [April 13, 1959], No. 12563/60. Class 9(1). A practice projectile 1 comprising a casing 3 containing a smoke-generating charge 2 and fitted with a percussion fuze (not shown) has a cylindrical tail member 5 of enlarged diameter which is made from a synthetic plastic material such as polyvinyl chloride, polyethylene or a polyamide.
Patent GB-1082187-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: WADMARK LARS OLOF TOR
IPC: G21C1/20
Filed: 1966-03-22
Abstract: 1,082,187. Reactors. ATOMENERGI A.B. March 22, 1966 [April 1, 1965], No. 12599/66. Heading G6C. A reactor comprises a moderator tank 3 within a pressure vessel 1, water being admitted to the tank through a tube 7 and leaving through openings 6. A plurality of tubes 9 (only one shown) extending through the tank and closed at their upper ends by plugs 13 each contain a fuel element 10 through which the water flows upwardly whilst boiling, the mixture of steam and water leaving the tube through openings 11 above the water level 12. The steam enters openings 16 in a plurality of tubes 15 (only one shown) and flows downwardly through fuel elements 18 disposed in the tubes whilst being superheated, the superheated steam leaving through a conduit 19. To prevent condensation on the inner surface of the tube 15 the latter is surrounded by tube 21, water 27 at nearly boiling point being drawn down the annular space 20 by the self-circulation derived from the boiler tubes 9.
Patent GB-754759-A (GB)
Title: Improvements in or relating to transistor amplifiers with gain control
IPC: H03G3/10
Filed: 1954-04-30
Abstract: 754,759. Transistor amplifier gain control. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 30, 1954 [May 5, 1953], No. 12605/54. Class 40 (6). In a cascaded amplifier, a resistive gain control and blocking capacitor is arranged between the collector of the first transistor and the base of the second in such a manner that a variation of the control towards lower amplification causes an increase in the impedance between the base and emitter circuit of the second transistor. The collector c<SP>1</SP>, Fig. 2, is connected over capaci-' tor 5 and variable resistor 3 to the base b<SP>2</SP> of the second transistor, a decrease in gain being achieved by an increase in the value of resistor 3 in circuit. In a modification, Fig. 3 (not shown), the end of the resistor 3 is connected to the emitter e<SP>2</SP> to allow the amplification to be reduced to zero. The resistor 7 may be replaced by a transformer, Fig. 4 (not shown).