baber/WOPTO huggingface dataset:
Patent GB-1276452-A (GB)
Title: Pneumatic control system and pneumatically-operated reversing relay construction therefor
Inventor: SMITH LARRY SECOR
IPC: F15C3/04
Filed: 1970-02-02
Abstract: 1276452 Valves ROBERTSHAW CONTROLS CO 2 Feb 1970 [3 Feb 1969] 4924/70 Heading F2V [Also in Division G3] A pneumatic control device for controlling the output of a heat exchanger has a one-piece diaphragm member 17 formed with axially-spaced diaphragm portions 18, 19, 20 which cooperate with the housing to form an exhaust chamber 24, a control chamber 25 which is connected by spigot 50 to a fluid pressure comparator fed with signals from a heat-exchanger temperature sensor and a pressure regulator, a vented intermediate chamber 26 and a chamber 27 connected via spigot 46 to the heat exchanger. Fluid pressure from the regulator is fed to chamber 31 via spigot 45 and a valve member 36 therein projects through a seat 30 to cooperate with a resilient seat 40 about an opening 39 through the diaphragm member. The pressure fed to the heat exchanger is controlled in inverse proportion to control pressure by connecting chamber 27 to exhaust via opening 39 or pressure via seat 30. Spring 59 which loads the diaphragm member permits adjustment of heat exchanger temperature.
Patent GB-322695-A (GB)
Title: Improvements in pulverising installations for pulverized coal and the like
IPC: B02C23/00
Filed: 1929-02-14
Abstract: 322,695. Fairweather, H. G. C., (Peters, C.). Feb. 14, 1929. Ball and - ring mills; mills of unspecified type combined with sorting apparatus. - In a pulverizing installation for coal &c. in which an air screen disposed above the mill separates the coarse material from the fine, the air return pipe 6 is passed through the screen 8 into the mill so that the separated coarse material in the screen 8 is fed into the mill by the injector effect produced by the air discharged from pipe 6 on the annular space formed by the screen 8 surrounding this pipe. The screen 8 may have tangential flaps at its upper edge and is adjustable by screws 9, and the pipe 6 may have a telescopic extension 7. The material ground by the balls 1 is sucked over the top of the screen 8 by the fan 4 and the fine material is discharged to the separator 5, the air returning to the mill by the pipe 6. The coarse particles descend in the screen 8 and return to the mill, their descent being hastened by the suction effect of the returned air. The fan 4 may be placed in the pipe 6.
Patent GB-196751-A (GB)
Title: Improvements in gas heated soldering irons
IPC: B23K3/02
Filed: 1922-02-22
Abstract: 196,751. Bennett, G. H. Feb. 22, 1922. Soldering-irons.-In a gas-heated soldering-iron of the type in which the heating is effected by a bunsen burner forming part thereof and supplied with gas at ordinary pressure, the burner tube has a narrow-bore opening at its outlet into an enlarged portion and provided with a thin metal web so as to give a small intense and rigid flame and prevent lighting-back. The gas tube passes through a wooden handle A, and is screwed at the rear end into a connection D for the flexible gassupply pipe, and at the front end into a rise-valve regulator nozzle F such as a '' Bray's " nozzle, which is .separated by a sleeve E from the end of the handle. The nozzle F screws into a short Bunsen burner-tube G, which has a thin-web or webs H to prevent back-firing and a narrow bore with an enlarged outlet I to prevent the flame from being blown out. The burner tube may be screwed into a head J having side arms L and a socket into which the bit K is secured by a set screw, or may be screwed into a holder O, Fig. 9 into which a hatchet shaped bit P is secured.
Patent GB-703272-A (GB)
Title: Manufacture of new derivatives of benzimidazole
IPC: C07D235/14
Filed: 1951-03-02
Abstract: The invention comprises benzimidazole compounds, and their salts, containing in the 1-position a benzyl residue which may be para-substituted by a halogen atom or an alkyl or alkoxy residue containing 1-4 carbon atoms, and in the 2-position an N-pyrrolidylmethyl group, and the preparation thereof by the following methods: (i) reacting an ester (e.g., a halide or p-toluenesulphonic ester) of an o-nitrophenol with a benzylamine, reducing the nitro group to an amino group, ring-closing the monobenzylated o-diamine by reaction with a halogenacetic acid and replacing the halogen by reaction with pyrrolidine; (ii) monobenzylating an o-diamine and treating the product as in (i); (iii) acylating a monobenzylated o-diamine by the action of an acetic acid halide containing in the a -position a substituent replaceable by a pyrrolidyl residue, and then either (a) closing the imidazole ring and then replacing by the pyrrolidyl residue the substituent so replaceable, or (b) effecting these operations in the reverse order; (iv) acylating an unsubstituted o-diamine with a haloacetyl halide, replacing the halogen by a pyrrolidyl residue, benzylating the amino group still free by condensation with an aromatic aldehyde followed by catalytic hydrogenation, and, finally, closing the imidazole ring. In examples: (1) 1-benzyl-2-N-pyrrolidylmethylbenzimidazole is prepared by method (i) using chloracetic acid for the ring-closure; the hydrochloride is also described; (2) 1-p-chlorobenzyl-2-N-pyrrolidylmethylbenzimidazole or its hydrochloride is prepared by method (iii) (b) using chloracetyl chloride for the acylation and effecting ring-closure by heating in nitrobenzene, or by method (iv); 1-p-bromobenzyl-2-N-pyrrolidylmethylbenzimidazole hydrochloride is also described; (3) 1-p-methoxybenzyl-2-N-pyrrolidylmethylbenzimidazole hydrochloride is prepared by method (iii) (b) using chloracetyl chloride for the acylation and effecting ring-closure by refluxing with anhydrous sodium acetate in glacial acetic acid; the dipicrate is also described; (4) a mixture of o- and p-methyl-benzyl chlorides obtained by chloromethylation of toluene is converted via the addition product with hexamethylenetetramine to the mixed methylbenzylamines, these are reacted with o-chloronitrobenzene, the mixture of isomers obtained is recrystallized from petrol ether, and the large crystals of N-p1-methylbenzyl-o-nitraniline are separated from the small ones and converted according to method (i) to 1-p-methylbenzyl-2-N-pyrrolidylmethylbenzimidazole hydrochloride. Specification 703,273 is referred to.
Patent GB-173986-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01J5/56
Filed: 1921-02-15
Abstract: 173,986. Mead, A. G., and Mead & Jeffery, Ltd. Feb. 15, 1921. Caps 1 of lamp bulbs are provided with perforations 9 to permit circulation of air through the space between the end of the bulb and the disc 7 that carries the contacts 8, whereby the head of the bulb is cooled. The caps may be of either the bayonet or the screw type.
Patent GB-197746-A (GB)
Title: Improvements in or relating to smoke combustion apparatus for furnaces
IPC: F23L7/00
Filed: 1922-02-22
Abstract: 197,746. Atkins, A. Feb. 22, 1922. Air, supplying; smoke, consuming; baffles. - In smoke-consuming apparatus for furnaces of the kind comprising a secondary air conduit extending through the front of the furnace to a secondary combustion chamber at the rear and through which the air is induced by a steam jet, the inlet-end of the air-supply pipe is enlarged at G', Figs. 1 and 3, and provided with internal baffles comprising a cup-shape hood J and a tube H supported by brackets and arranged to cause the air to take a tortuous course and thus reduce the noise created by the action of the steam jet which is arranged at the junction of the vertical tube G and horizontal tube A. The steam nozzle is forked so as to deliver on each side of a vertical partition arranged in longitudinal channels provided in the pipe A, the discharge end of which is open at the under side and delivers downardly into a chamber C with a perforated floor.
Patent GB-545855-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/20
Filed: 1941-04-23
Abstract: 545,855. Making piston rings. STEVENS, A. H. (Power Research Corporation). April 23, 1941, No. 5263. [Class 83 (ii)] [Also in Group XXVI] A piston ring comprises a strip of resilient sheet material formed with segments or having cuts to prevent crown-forming portions when the strip is folded upon itself transversely to form a circumferentially extensible annular body of which the segments provide oil scraping edges. In one form a metal strip is punched to form segments 2, Fig. 2, and spaces 2a and is provided with cuts 3. The strip is folded transversely as shown in Fig. 5 whereby the segments 2 form upper and lower annular rings. The webs 4 may be vertical as shown, or may diverge. Fig. 6 shows a blank with segments 7, 7a at both sides to form the ring shown in Fig. 7. Fig. 10 shows a blank cut to form extended segments 15, 15a, 15b, 15c and folded to make the ring shown in Fig. 11 having overlapping edges of double thickness. In another form a blank is provided with segments 20, Fig. 14, and folded as shown in Fig. 15 the segments being then bent as in Fig. 16. Perforations 25 from oil passages and the segments may be bent in an opposite direction to cover the webs 24. The strip may have a variable cross section.
Patent GB-633313-A (GB)
Title: Improvements in or relating to suitcases, travelling and like cases
IPC: A45C3/00
Filed: 1948-02-23
Abstract: 633,313. Hinges. GARSTIN & CO., Ltd., A., and WERFF, H. H. J., VAN DER. Feb. 23, 1948, No. 5340. [Class 65 (ii)] [Also in Group XVII] The hinge between the body 11 and the lid of a suitcase, travelling or like case is formed by a flap 16 of resilient material which is integral with the cover 8 of the lid, the flap being folded along the edge of the rim of the lid and being secured, as by stitching 17, to the part of the body of the case which is covered by the rim when the case is closed. The resilience of the flap 16 therefore tends to assist opening of the lid. The rim may be reinforced by a strip 9, and it may have a lining of the same material as the covering 8, which lining may be formed with a flap, similar to the flap 16, also secured to the body of the case by the stitching 17 so as to increase the opening torque due to the hinge. Opening of the lid may be limited by a strap 18.
Patent GB-101593-A (GB)
Title: Improvements in or relating to Portable Baking or Cooking Ovens.
Inventor: FULD MICHEL
IPC: F24B1/00
Filed: 1916-04-12
Abstract: 101,593. Fuld, M., and Heisen, B. J. April 12, 1916. Cooking-stoves.-A small collapsible traveller's stove or oven designed to bake one or more loaves, or for cooking food generally comprises a lamp 17 which, in operation, supports a base 8, a combustion chamber 7, and an oven casing 3 with a baking or cooking chamber 1 provided with a hinged floor 5 and a drawer 2. To collapse the stove, the oven and base 8 are lifted from the supports 20 on the lamp, which is then placed in the combustion chamber 7. The stays or supports 13 14, which are connected to the oven casing by hinges 11, 12 and engage with abutments 15, 16 on the base, are then folded up to the base of the oven casing, and the lamp and combustion chamber are then pushed into the inverted tray 2 in the oven chamber 1, the bottom 5 of which has previously been turned up. The parts are then secured by hinged pieces 26 'which engage with buttons 28. Air-regulators 9 are fitted on the chamber 7, and a ventil@ 4 is fitted to the oven
Patent GB-1456162-A (GB)
Title: Thienodiazepine derivatives
IPC: A61K31/5517
Filed: 1974-02-07
Abstract: 1456162 Thienodiazepines F HOFFMANNLA ROCHE & CO AG 7 Feb 1974 [8 Feb 1973] 05396/76 Divided out of 1456161 Heading C2C Compounds of the general formula (R 1  = halogen, NO 2 , NH 2 , alkanoyl; R 2  = pyridyl or thienyl optionally substituted adjacent to linking position, phenyl, o-trifluoromethylphenyl, o - halophenyl, o,o<SP>1</SP> - dihalophenyl, o - nitrophenyl; R 3  = H, OH, alkoxycarbonyl, alkanoyloxy; R 4  = H, alkyl, alkanoyl, hydroxyalkyl, mercaptoalkyl, alkoxycarbonyl, aminocarbonyl, haloalkyl, alkoxyalkyl, alkylthioalkyl, aralkoxyalkyl, cyanoalkyl, alkoxycarbonylalkyl, alkoxycarbonylaminoalkyl, alkylcarbonyloxyalkyl, aminocarbonyloxyalkyl, dialkylaminocarbonyloxyalkyl, CN, alkyl NR 5 R 6 , COO alkyl NR 5 R 6 , CONH alkyl NR 5 R 6 ; R 5,6  = H, alkyl, hydroxyalkyl or NR 5 R 6  = monocyclic saturated 5-6 membered ring optionally containing an oxygen or further nitrogen atom ; n = 0, 1) are prepared by standard methods, e.g. condensing the corresponding 5- aryl - 1,3 - dihydro - 2H - thieno[2,3-e] - 1,4- diazepine-2-thione with R 4 CONHNH 2 .
Patent GB-394433-A (GB)
Title: Improvements in or relating to holders or receptacles for bottles
IPC: A47F1/08
Filed: 1932-02-24
Abstract: 394,433. Containers for bottles. SPENCER, A. B. and SPENCER, A. H., 226, Stanley Road, Bootle, Lancashire. Feb. 24, 1932, No. 5478. [Class 18.] A container &c. holding and facilitating the removal of bottles of beverage comprises inclined or vertical platforms d and retaining strips j defining apertures k through which the bottle necks protrude, the strips j stopping short of the ends of the container to allow insertion and removal of the bottles. Base lugs m for securing the container to a counter and a front b may be provided, which may carry advertisements. The base may slope upwards from the edge h<1> to the edge h. In a modified form, the strips extend to the ends and circular apertures are formed for insertion and removal of bottles. A slotted plate may be used instead of the battens, and the container may consist of a light metallic frame. A combination of vertical and inclined compartments may be used, or each compartment may slope downwards from the middle, the insertion aperture being at the middle, or the superposed compartments may slope in opposite ways and be apertured at the ends to form a continuous zig-zag column of bottles.
Patent GB-1492342-A (GB)
Title: Method of and apparatus for thermal moulding of thermoplastic web material
IPC: B29C51/38
Filed: 1976-02-12
Abstract: 1492342 Moulding sheets ADOLF ILLIG MASCHINENBAU GmbH & CO 12 Feb 1976 [20 Feb 1975] 05499/76 Heading B5A An automatic thermal moulding machine for shaping thermoplastic web material drawn off roll  6 has a rigid upper mould part 10 and a lower mould port 17 which is vertically displaceable with the movement of the cam 18. The container produced by the mould is blown from the mould station by air jets 9. A photo-electric sensing element 29 (Fig. 2, not shown) detects the rotational position of a coding disc 21 mounted to be rotatable in synchronism with the cam 18 and individual processing operations are controlled in accordance with the particular rotational position of the coding disc and predetermined settings on switch means 33 (Fig. 2, not shown) connected to the photoelectric-sensing element.
Patent GB-197753-A (GB)
Title: Improvements relating to electrically operated mining plant
IPC: B66B1/12
Filed: 1922-02-24
Abstract: 197,753. Ferry, J. F., Stubbs, A., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 24, 1922. Dynamos and motors combined for transmitting power.-Colliery or like winding plant comprises, in combination, a prime mover, an electric generator mechanically connected therewith and supplying electricity to an electric motor driving the winding gear, and a power-absorbing device (such as an eddy-current brake or a direct-current generator) mechanically coupled to the generator shaft for absorbing any regenerative energy from the electric motor. In the diagrammatic form shown in Fig. 3, turbine 4 drives a direct-current generator 6 through gearing 5, a flywheel 12 being mounted on the generator shaft 11. The generator is electrically connected to a motor (not shown) driving the winding gear, and is directly coupled to a direct-current generator 10 which is normally idle. When the load is acting regeneratively, the turbine 4 is shut off, and the generator 6 acts as a motor driving the generator 10, which now supplies electricity either to (1) mains connected to an auxiliary load such as fans or lamps, or (2) a motor generator 28, 29 connected to other auxiliary mains 23 fed by a turbo-alternator 14, 15. In either case the generator 10 now acts as a brake on the generator 10. The main turbine 4 may be controlled by a centrifugal governor, so that when the speed rises as the load tends to over-run its driving gear, the turbine is shut off. The same governor or a separate one 31 may bring the power-absorbing device into action. Two generators such as 6 and two motors driving the winding-gear may be employed. A second similar power unit may be provided, and in this case the second generator 6 may be employed either as a stand-by for the main unit, or in conjunction with the motor-generator 28, 29 as a stand-by for the auxiliary set 14, 15.
Patent GB-700771-A (GB)
Title: Improvements in or relating to sailing craft
IPC: B63B39/06
Filed: 1951-03-07
Abstract: 700,771. Sailing craft FAWCETT, H. W. Feb. 22, 1952 [March 7, 1951; May 18, 1951; May 18, 1951; Nov. 5, 1951], Nos. 5572/51, 11701/51, 11702/51 and 25874/51. Classes 113(2), 114 and 115 In a sailing craft comprising at least two hulls H<SP>1</SP>, H<SP>2</SP>, and at least one collapsible bridge structure interconnecting the hulls, a flexible connection between each end of the bridge structure and the hull permits limited pitching movement of one hull independently of the movement of others. The bridge structure comprises girder members 1, 2, 3, 4, 6, 7; is of the lazy tongs type; is held expanded by wires 20, 21, 22, 23, and is collapsed by removing hinge members 8 and 9. Each hinge 5 of the structure is rigdly mounted on a plate 15 having stirrups 16 in which a bar 17 secured to the hull can move to a limited extent. A stub axle 18 on the hull extends through an aperture 19 in the plate 15 of such a size as to permit limited movement of the axle in the aperture. The structure supports a cabin 14 which carries a buoyant streamlined keel 35. Masts M<SP>1</SP>, M<SP>2</SP> and booms B<SP>1</SP>, B<SP>2</SP> carry triangular sails inclined so that the lines of action of the fore and aft wind forces intersect at X and the athwartship forces at B, the forces then having no effect on the trim or list of the craft. The masts may be mounted so as to have a limited movement which is restrained by spring members 29. Each hull is provided with a member 28 for resisting athwartship forces. The booms may carry hydroplanes 63. Each hull has a plurality of planing surfaces 30 with a free flooding double bottom 40 having a vent 41 and a hole 42 so that at low speeds the double bottom is filled with water and adds to the stability of the craft whereas at high speeds the double bottoms are lifted above the water level and water contained therein drains away through the holes. A buoyant stem portion 31 is hinged at 32 and controls the flow of water from the stern. Wedge-shaped floats 45 may be hinged at 46 to the steps of the planing surfaces to produce a similar effect to that of the stern portion 31, a vent 47 being provided to avoid the formation of a vacuum.
Patent GB-475789-A (GB)
Title: Improvements in or relating to the froth flotation concentration of ores
IPC: C01D3/08
Filed: 1936-02-25
Abstract: The halite and sylvite constituents are recovered from ores containing them by froth flotation, the pulp being formed by introducing the ore into a solution saturated with respect to both sodium and potassium chloride, e.g. a saturated solution of the ore itself.  By the selection of suitable reagents one of the constituents is floated and removed, the tailings being then subjected to froth flotation with a reagent which will raise the remaining constituent into the froth.  To float halite a lead or bismuth compound which is soluble in the brine is used in conjunction with a fatty acid or a fatty acid derivative, e.g. oleic acid, soaps such as coconut oil soap, palm kernel soap, and resin soaps, or an alkali resinate, or mixtures of these substances.  The lead or bismuth compound may be dissolved in the brine, the ore added next, and finally, e.g. during the agitation or aeration, the fatty acid, soap, &c.  Lead acetate, chloride, sulphate, nitrate, carbonate, and oxide, and bismuth nitrate, chloride, sulphate. and oxide are referred to as suitable lead and bismuth compounds.  To float potassium chloride the reagent used is an alkali salt of a sulphonated alcohol, e.g. sodium octyl sulphate or sodium lauryl sulphate.
Patent GB-1531084-A (GB)
Title: Loft ladders
IPC: E04F11/06
Filed: 1976-02-13
Abstract: 1531084 Loft ladder G MONNERIE 13 Feb 1976 [14 Feb 1975] 05665/76 Heading E1S A folding loft ladder comprises four elements 4, 7, 9, 12 hinged to form a folding parallelogram. The element 4, which may comprise half-treads 14 (Fig. 2) is connected to a trap door 1 by a hinge lever 2 and to the frame opening by a bracket 3. Handles 16, 17 are provided for extending and retracting the ladder from the lower level, and levers 18 and 19 are used to extend and retract the ladder (as indicated by arrows in Figs. 2 and 3 respectively) from the upper level. Springs 24 are used to control the folding and unfolding.
Patent GB-360310-A (GB)
Title: Improvements in rotary parachutes
IPC: B64D17/78
Filed: 1931-02-23
Abstract: 360,310. Rotary parachutes. WILLIAMS, H. W., 21, Beacon Street, Boston, U.S.A. Feb. 23, 1931, No. 5669. Convention date, Feb. 24, 1930. [Class 4.] A rotary parachute device comprises a wing 10, Fig. 1, having at one end a spherical head 15 extending substantially at right-angles to the plane of the wing, a socket 16, 17 in which the head 15 is freely rotatable on an axis at an angle to the plane.of the wing, and means suspended from the socket whereby it may be attached to the person of the user. ' The wing is shaped to resemble the seed pod of the maple tree and is stiffened at the leading edge. The head socket comprises an upper and a lower shell clamped together, Fig. 3, and containing ball bearings 19 for the head 15 which is free to alter its axis of rotation. A union 27 clamps a head 29 of a shank 24 forming part of the supporting frame for the parachutist. The head 29 rests on ball bearings and is thus free to rotate. According to a modification the spherical head of the wing is formed with a horizontal annular shoulder which is clamped between the shells by ball bearings so that the axis of rotation of the wing is always parallel to that of the hanger.
Patent GB-1173094-A (GB)
Title: Improvements in Electromagnetic Relays
IPC: H02P9/24
Filed: 1967-02-07
Abstract: 1,173,094. Attracted armature relays. ROBERT BOSCH G.m.b.H. 7 Feb., 1967 [8 Feb., 1966], No. 5764/67. Heading H1N. An electromagnetic relay for use as a vehicle dynamo voltage regulator has a trough-shaped magnetic frame 11 forming part of the relay housing with the coil supporting core 18 mounted on one edge 15 of the trough 13 and the armature 20 supported at the opposite end 16 of the trough. The armature 20 may be flat as shown or L-shaped (Fig. 4, not shown), and the part of the core 18 on which the coil 17 is mounted may be square or round in section. A shunt screw 28 in a threaded hole 27 in the frame 11 bears upon the core end to allow adjustment of the normal air gap 26. Compensation for the effects of temperature change is provided by making the shunt 28 of temperature responsive magnetic material and the hinge spring 19 of the armature as a temperature responsive bimetal. A movable contact 22 on an arm 21 of the armature 20 moves between fixed contacts of a contact stack 29.