baber/WOPTO huggingface dataset:
Patent GB-516972-A (GB)
Title: Gas installations
IPC: F23Q21/00
Filed: 1938-07-09
Abstract: 516,972. Gas supply to burners. SUGG & CO., Ltd., W., and McGIBBON, A. R. July 9, 1938, No. 20402. [Class 75 (i)] In a gas burning system such as a railway or street lighting installation comprising a series of burners 5, 5<1>, 5<11> fitted with electric catalytic or other automatic ignition means 6, the portion of the system between the main cock 2 and the burners is kept primed with gas when the main cock is closed through a bye-pass 7 and a building-up of pressure in the system is prevented by a leakage device such as a pilot jet 13 or the apparatus described in Specification 162,050, [Class 135]. The pilot jet may be used as a tell-tale to indicate whether the installation .is in working order. The supply of gas to the main burners may lie controlled by valves 9 normally held open by the gas pressure acting on diaphragms 10. Acccording to the Provisonal Specification the lighting installation may comprise a single burner.
Patent GB-861169-A (GB)
Title: Device for the peripheral clamping of arcuate or curved stereotype or similar plateson the forme or printing cylinder of a rotary printing press
IPC: B41F27/10
Filed: 1959-06-16
Abstract: 861,169. Printing surfaces. SCHNELLPRESSENFABRIK FRANKENTHAL ALBERT & CIE A.G. June 16, 1959 [July 7, 1958], No. 20536/59. Class 100(2) A device for clamping curved stereotype plates on a printing cylinder comprises clamps for the straight edges of the plates which are axially fixed but radially movable on actuation of pushrods, in turn actuated by the means for clamping the curved edges of the plate. The curved edges of the plates 6 are secured by bevelled ring halves 2 at the ends of the cylinder 1, intermediate bevel pieces being provided along the length of the cylinder. Split outer rings 4 clamp the ring halves 2 against the plates 6 when an eccentric lock 3 is turned allowing compression springs 5 to operate. The cylinder has axial recesses into which clamping rails 9 are fitted by screws 10. The rails 9 are provided with slots into which push rods 11, 12 are fitted. The rods 11, 12 are connected by adjusting screws 14 and are fixed to the ring halves 2 by screws 13. Bevel teeth 15 are milled into the rods 11, 12 which mesh with helical gearing 18 provided on the clamping jaw carriers 17 for the straight edges of the plates. The carriers 17 are mounted in recesses 16 in the rails 9. The carrier 17 has a bore into which fits a screw 20, screwed into a clamping jaw 21, mounted in the carrier. Springs 22 are arranged between the head of the screw 20 and the jaw carrier 17. A stop plate 23, having an oblong hole 24 into which the eccentric head of a screw 25 engages, is guided in a recess in the carrier 17 and serves for adjusting the plate 6 in a circumferential direction. In operation, inward movement of the rods 11, 12, caused by inward movement of the rings 4 and clamps 2, causes the jaws 21, by reason of gearing 15, 18, to move radially inwards and grip the straight edges of the plate 6. Similarly release is effected by outward movement of the rings 4.
Patent GB-1039221-A (GB)
Title: Improvements in or relating to bellows
IPC: F16J3/04
Filed: 1961-06-07
Abstract: 1,039,221. Fluid actuation of switches; thermal switches. J. ARCHER, and J. L. OWNER. Aug. 31, 1962 [June 7, 1961], No. 20646/61. Heading H2B. A bellows 1 has a displaceable port to which is fixed a rigid member 13 carrying an armature 12 displaceable with respect to a permanent magnet 9, and the magnetic force between the armature and magnet is opposed to the bellows stiffness force over a range of displacement (see Figs. 2, 4, 5, 7, not shown) of the said port, and means are provided for preventing the armature from touching the magnet, i.e. a non-magnetic shim 17. Armature 12 and magnet 9 may be exchanged. For heater control purposes the bellows 1 is made temperature responsive and moves to actuate switch contacts 29, 31 (Fig. 3, not shown), to make or break a circuit to a heater. The switch sensitivity is increased by the magnetic biasing. The magnet 9 may be adjustably positioned by clamps 10, 11, and there may be a second adjustable magnet 40 (Fig. 6, not shown), to provide a magnetic force for each direction of movement of the bellows. Alternatively, shaped polepieces 47, 48 (Fig. 8, not shown), provide the "over-centre" action and the two stable states. A resilient strip 16, to which portion 14 of member 13 is joined, also affects the bellows movement.
Patent GB-192718-A (GB)
Title: Multiple-gun firing apparatus particularly applicable to bombs
IPC: F41A19/18
Filed: 1921-08-03
Abstract: 192,718. Ekman, G. A. G. Aug. 3, 1921. Machine guns. - A number of gun barrels 13 arranged in circular tiers on the casing cf an aerial bomb, as shown in Fig. 2, or supported so as to form a multi-barrel anti-aircraft gun, are simultaneously fired by a sliding rod 8 carrying rings 10 to which are detachably connected spring-controlled firing- arms 22, Fig. 4, which slide in brackets 19 pivoted near the barrels and are slotted to engage the gun triggers 18. In assembling the parts of the bomb, side plates 2 carrying guns of the single-loading or automatic type are fastened to end plates 3, 4, the ends 24 of the firing-arms being snapped over the corresponding rings 10. The side plates are also connected with rods 5 joining the end plates by spring-links 14<a> which absorb recoil.
Patent GB-790328-A (GB)
Title: Improvements in or relating to the breaking of solid material by blasting with compressed gas
Inventor: DOWIE DAVID LINCOLN
IPC: E21C37/14
Filed: 1955-07-18
Abstract: 790,328. Compressor plant. AUSTLAND, Ltd. July 10, 1956 [July 18, 1955 ; Oct. 3, 1955], Nos. 20729/55 and 28140/55. Class 8(1). Means for the winning of coal or other minerals in underground mines by the use, at the working face, of a blasting device 4 from which compressed gas at a blasting pressure is controllably releasible comprises a first compressor 1 remotely situated from the working face and adapted to produce compressed gas at a pressure substantially below blasting pressure, a supply line 3 connecting the output of the first compressor to the input of a second compressor 2 which is located adjacent the working face and which is adapted to further compress the gas to blasting pressure and a supply connection 5 between the output of the second compressor and the blasting device 4. A potential danger point 10, e.g., a blow-off valve or water trap which if opened to atmosphere would discharge with an undesirably violent effect is enclosed in the low pressure air line 3 by means of loop 11 provided with a valve 12 permitting escape to atmosphere through line 13 or to low pressure line 14. The low pressure air surrounding the danger point provides means for cooling said point. In Fig. 4 the danger zone 21 in the high pressure system is enclosed in a casing 22 having an inlet 25 and outlet 26 for low pressure air. If water supply lines are available, water may be passed through the chamber 24 and also be used for cooling the discharge tubes 4.
Patent GB-477815-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: H03F3/52
Filed: 1936-07-07
Abstract: 477,815. Valve amplifying circuits. WILLANS, P. W., BROWN, A. J., and BAIRD TELEVISION, Ltd. July 7, 1936, No. 20742 /35. [Class 40 (v)] In a valve amplifier a coupling to minimize the capacitative load of one stage on the following stage comprises a buffer valve with a screen grid connected to the cathode at signal frequency and an output transformer in the cathode lead. The Figure shows a buffer valve 1 having an output transformer the primary 4 or secondary 10 or both windings of which may be tuned by a condenser if amplification over a restricted range is required.
Patent GB-1152554-A (GB)
Title: A Steel Lattice Beam and a method of manufacturing the same
Inventor: KELLER JULIUS GEORG STEFAN
IPC: B21F27/20
Filed: 1967-05-04
Abstract: 1,152,554. Making lattice girders; altering physical structure. J. G. S. KELLER. 4 May, 1967 [13 May, 1966], No. 20827/67. Headings B3A and B3V. [Also in Division E1] In order to improve the strength of a steel lattice girder for reinforcing concrete floors, the lattice web portions 17<SP>1</SP> other than at the bottom chord or chords 11<SP>1</SP> are hardened by cold working. The girder is made by first forming equidistant spaced loops 14 in a steel rod and clamping the loops in slidable vices. The portions of the rod between the clamped loops are pressed by a wedge shaped ram to form a sinuously extending lattice 13<SP>1</SP>, the vices moving towards each other a limited distance, whereupon further movement of the ram causes the portions 17<SP>1</SP> to be strained preferably by about 5%. The peak portions of the lattice 13<SP>1</SP> may also be clamped to avoid straining in these areas. The unstrained loops 14<SP>1</SP> of the lattice are finally electric resistance welded to two spaced apart bottom chord rods 11<SP>1</SP>. A channel section top chord (12) (Fig. 1, not shown), may also be welded to the peaks of the lattice 13<SP>1</SP>. The lattice 13<SP>1</SP> may alternatively be formed from individual components or from a rod having alternate strained and non strained portions.
Patent GB-932702-A (GB)
Title: Yarn guide fastening means
Inventor: FAHY MARY MCGOVERN
IPC: B65H57/00
Filed: 1961-06-09
Abstract: 932,702. Braiding machines. HEANY INDUSTRIAL CERAMIC CORPORATION. June 9, 1961, No. 20897/61. Class 74 (2). [Also in Group IX] A yarn guide e.g. for a braiding machine comprises a ceramic body 1 with a lateral guide portion including a pigtail 2 and an internally ribbed cylindrical opening 3 closed at one end to receive a slightly resilient bushing 5 in which engages a threaded metal post 6 so that it contacts the closed end of opening 3. The inner diameters of opening 3 and bushing 5 are preferably slightly smaller than the outer diameters of bushing 5 and post 6 respectively. Bushing 5 may be of nylon or fibre.
Patent GB-696293-A (GB)
Title: Improvements in drop-hammer stamping machines
IPC: B21J7/36
Filed: 1950-08-23
Abstract: 696,293. Power hammers. LOUVROILMONTBARD-AULNOYE. Aug. 23, 1950 [Dec. 17, 1949], No. 20906/50. Class 83 (iv). In a drop hammer of the type in which the ram is lifted by rolls automatically moved towards and away from each other by electropneumatic means controlled by electric contacts actuated by the ram, the ram may be selectively dropped from two different heights by the operator rendering active one or the other of two electric contacts. A pin 19 on the ram 18 closes contacts 22 near the bottom of the stroke, whereby the circuit through a solenoid 23 of the electro-pneumatic means R is closed and a pneumatic piston 34 operated to move the roll 37 to engage and raise the ram 18. A contact 24 also closed by the solenoid 23 maintains the circuit through the solenoid after the contacts 22 have been re-opened by the ram on its upward path. As the ram rises the pin 19 opens contacts 21 and breaks the circuit through the solenoid 23, permitting springs 36 to withdraw the rolls 37 and release the ram. If the contacts 21 are rendered inactive by closure of contacts 3 by a treadle 1 the ram continues to rise until the pin 19 opens the contacts 20 above the contacts 21 so that the ram is released from a greater height. The contacts 20, 21 are adjustable in height and comprise flexible blades which yield when the pin 19 descends. A further pair of contacts 39 (not shown) above the contacts 20 act as a safety device for releasing the rolls 37 if the contacts 20 or 21 should fail to operate. A push-button switch may replace the contacts 22, 39 so that the ram may be raised and lowered under manual control. In operation grippers 16 on an electro-pneumatic brake F sustaining the ram are released by closing contacts 2 under the treadle 1 to allow the ram 18 to fall and the contacts 3 are selectively closed by the operator depressing the treadle either vertically or obliquely. In a modification the contacts 3 are actuated independently of the treadle. Reference has been directed by the Comptroller to Specification 659,538.
Patent GB-1192384-A (GB)
Title: Photographic Emulsions
Inventor: LARE EARL JOHN VAN
IPC: C09B23/04
Filed: 1967-05-05
Abstract: 1,192,384. Pyrazole derivatives. EASTMAN KODAK CO. 5 May, 1967 [23 Dec., 1966], No. 20915/67. Heading C2C. [Also in Divisions C4 and G2] 1,3,5-Trimethylpyrazole is prepared by reacting methyl hydrazine with 2,4-pentanedione: 1,3,5 - trimethyl - 4 - pyrazole carboxaldehyde is prepared by reacting 1,3,5-trimethyl pyrazole with phosphoryl chloride and dimethyl formamide.
Patent GB-1180482-A (GB)
Title: A Vessel Partly Supported by Water and Partly by Static Air
Inventor: STEPHENS ROBERT MELLING
IPC: B60V1/00
Filed: 1967-05-05
Abstract: 1,180,482. Air cushion supported waterborne vessels. R. M. STEPHENS. 5 May, 1967 [11 May, 1966], No. 20936/67. Headings B7K, B7M and B7S. A water borne vessel includes a plurality of chambers each open at its bottom and each normally containing static air, the lower edges of each chamber being below the surface of the water, and including means to permit a one-way flow of water through each chamber when the vessel is in motion without escape of the air contained in the chamber. The purpose of the air in the chambers is partly to provide some buoyancy and also to reduce surface friction. A hull or body 1 is formed at each side with pontoons the lateral walls of which extend below the water surface whereby an open bottom is formed for entry of water, a cushion of air 4 being trapped within each compartment. There are valve means, not shown, for replenishing air and for releasing it to maintain an optimum pressure. Each pontoon is subdivided longitudinally by partitions 3 formed at their lower extremities by flaps 5 and the bow is provided with a plurality of inter-engaging pivoted flaps 9 which allow water to pass rearwardly through the lower part of each chamber by deflection of flaps 5 when the vessel is in forward motion but prevent the loss of cushion air. At the stern a single flap 13 allows the egress of-water, but not air. Apparatus for discharging overlapping curtains of air may be substituted for flaps 9. Primary and secondary water ballast ducts 20, 21 may be provided. In a further embodiment (Fig. 4, not shown) the air chambers are provided at the sides of a displacement hull instead of being formed as spaced pontoons, and in another embodiment (Figs. 14-16, not shown) the whole undersurface of a vessel is constructed in the manner described above except that rigid transverse walls control the flow of water at the forward and aft ends and a hinged flap for each compartment operates a valve to control the admission of air to make good losses within the respective compartment.
Patent GB-240620-A (GB)
Title: An improved diaphragm for gramophone sound boxes
IPC: H04R7/00
Filed: 1924-09-05
Abstract: 240,620. Eastty, S. W. Sept. 5, 1924. Diaphragms.-A diaphragm for a gramophone sound-box is pressed from sheet aluminium of 0.006 inches thickness and is somewhat ground down from its centre to the periphery and formed with concentric corrugations 2, 3, 4 between a flat central part 1 and a sunk part 6 adjacent a flat periphery 5.
Patent GB-671685-A (GB)
Title: Venetian blind supporting and actuating structures
IPC: E06B9/305
Filed: 1949-08-11
Abstract: 671,685. Venetian blinds. LORENTZEN, Inc., L. Aug. 11, 1949, No. 20956/49. Class 20 (iii) The headbar of a Venetian blind .comprises a channel-shaped sheet metal member 20 having inwardly-beaded longitudinal edges 21, the bottom of the channel being flat for at least most of its width and the sides of the channel being corrugated at 22. The headbar.is supported-by end brackets 104 and carries the tilter rod 50, tilters 51 and operating mechanism 45 therefor and the lift cord guides 47. The tilter rod and filters are to the rear of the centre line of the head. End and intermediate braces 24, 29 are resiliently secured by the beads 21 and an additional brace 129 may be provided having a stirrup 137 with which is engaged a fixed bracket 126 which forms an additional support for the long headbar of a wide blind. Specifications .634,809 and 671,682 are referred to.
Patent GB-1128194-A (GB)
Title: Improvements in or relating to dynamo-electric machines
Inventor: DICKINSON CLIFFORD JAMES
IPC: H02K3/22
Filed: 1966-05-11
Abstract: 1,128,194. Cooling damping windings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 24 April, 1967 [11 May, 1966], No. 20965/66. Heading H2A. A damper winding 1 on salient poles of a dynamo-electric machine is provided with ducts through which a fluid can flow to cool the winding. Applied to a stator (not shown) or to a rotor 3, the winding comprises hollow bars 5 brazed or welded into header boxes 7A, 7B respectively interconnected electrically by conductors 9A, 9B to form end rings and connected via radial pipes 17, 19, manifolds 11, 21 and shaft bores 13, 23 to a supply and discharge of the fluid, the discharge either being waste or recirculated through a heat exchanger 25; the supply and discharge manifolds and pipes alternatively, Fig. 2, are both at the same end of the poles. To accommodate thermal expansion the pipes may either incorporate a bellows coupling or have specific dimensions.
Patent GB-727897-A (GB)
Title: Wedging assemblies for use in bore-holes
IPC: E21B23/01
Filed: 1951-09-05
Abstract: 727,897. Rock-boring apparatus. THOMPSON, V. Sept. 5, 1951 [Dec. 26, 1950], No. 20968/51. Class 85. A retrievable wedge assembly, for use in re-orientating a borehole, comprises setting means and a wedge 79 supported, during the lowering of the assembly within a borehole, from an adaptor 97 on a drill string by a rod 96 secured to the wedge by a wire 99. At the desired level of operation the drill string is raised to cause a traveller 108, encircling the rod 96, tc move downwards in respect of the rod. This movement of the traveller relative to the rod is due to the frictional engagement between the traveller and the borehole wall, and it results in the wedge 79 being forced into engagement with said wall. Further upward movement of the drill string and of the  rod 96 causes parting of wires 99 and 106 connecting the rod 96 to the wedge 97 and a wedge setter 88. The wedge then becomes positively locked in the borehole as the spring-urged setter 88 slides upwards and outwards from a recess 95, whilst the drill string, rod 96 and traveller 108 can be removed from the borehole. Means may be provided so that the wedge can be set in any desired position in an inclined borehole. A shoulder 84 is provided on the wedge so that it may be removed by a fishing tool.
Patent GB-723882-A (GB)
Title: Improvements in the construction of rotors for steam- and gas-turbines
Inventor: BAILEY RICHARD WILLIAM
IPC: F01D5/06
Filed: 1951-09-05
Abstract: 723,882. Elastic-fluid turbines. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 5, 1952 [Sept. 5, 1951], No. 21000/51. Class 110 (3). In a multi-stage steam or gas turbine rotor arranged to be supported at or near its ends and comprising two or more coaxial rotor sections provided each at an end adjacent another section with a radially-extending flange, the flanges cooperate mutually in pairs for securing together the sections at their abutting faces and form in respect of each such pair a blade-carrying disc and the sections are further secured together by an axial bolt or like screwed rod for holding the abutting faces of adjacent sections in contact with each other. The rotor consists of a double flow section 1, two intermediate sections 2, 3 and two exhaust sections 4, 5 which are interconnected by a flange connection as shown; each pair of cooperating flanges 6 constitute a single bladecarrying disc for impulse blading. The flanges 6 are interconnected by one or more rings of countersunk rivets or are welded together along a groove disposed about the periphery of the abutting flanges or at the bottom of a bladereceiving groove. The exhaust section 5 has an extension 7 forming a journal 8 and a coupling 9 for connection to an electric generator whilst the exhaust section 4 is adapted to be secured to another turbine arranged in series therewith. The sections 1 ... 5 are also connected by a bolt 11 which has a portion 16 of larger diameter than that of the bore of the sections and has three slits 17 which are spaced 120 degrees apart and extend to the bore 18 of the bolt. The bore 18 is used for cooling purposes and serves for the insertion of a heater for heating the bolt during its assembly, thereby increasing its length to effect subsequent tightening of the nut which is secured by locking plates 19, 20. The flanges 6 have contact areas 22, 24 and a circular spigot and socket connection 25; the spigot being formed on the upstream member. Recesses 23 are formed in one of the flanges 6 on either side of the contact area 22, the outer diameter of which is about the same as that of the rotor body diameter at the root of the blade discs whilst its inner diameter is about three-quarters that of the outer diameter. In a modification, the section 1 is formed in two parts having abutting flanges which are interconnected by studs and nuts. Each section of the rotor is provided with a recess which houses a ring, as described in Specification 723,462. The ring resiliently engages the abutting rotor sections and the bolt passing therethrough. A flexible steel sleeve, the length of which is preferably not less than its diameter, is positioned between the head of the bolt and the corresponding rotor section; the end of the sleeve in contact with the rotor being forced to expand therewith by means of friction, mating grooves, keys or pins. The sections 1 ... 5 are constructed from different quality steels to suit the operating conditions of the parts.
Patent GB-912167-A (GB)
Title: Improvements in or relating to polyamides
IPC: C08G69/44
Filed: 1961-06-09
Abstract: A modified polyamide is made by reacting a polyamide of the general formula <FORM:0912167/IV(a)/1> (where R is an alkylene group containing from 5 to 10 carbon atoms and n is an integer of from 10 to 1,000) with an aminoalcohol of the general formula <FORM:0912167/IV(a)/2> (where R2 is hydrogen or an alkyl or hydroxyalkyl group) in a molar ratio of the polyamide to the aminoalcohol of from about 200 to 1 to about 10:1 and at a temperature above 170 DEG C. but below a temperature causing any substantial decomposition of the reaction product or the reactants. Specified polyamides are polycaprolactam, polycapryllactam and polyundecyllacatam. Specified aminoalcohols are tris-(hydroxymethyl)aminomethane, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-ethyl-1,3-propanediol and 2-amino-1,3-propanediol.  In the examples:-(I) polycapryllactam is reacted with tris(hydroxymethyl)aminomethane; (II) polyundecyllactam is reacted with tris(hydroxymethyl)aminomethane; (III) polycaprolactam is reacted with tris(hydroxymethyl)aminomethane.
Patent GB-219825-A (GB)
Title: Improvements in spotlight or the like lamp brackets
IPC: F21V21/00
Filed: 1923-08-20
Abstract: 219,825. Edgecumbe, G. W., and Bain, I. L. Aug. 20, 1923. No Patent granted (Sealing fee not paid). Brackets, securing. - In means for directing vehicle spotlights or like lamps from the driver's seat, the lamp support may be secured to the windscreen &c. by a clamp 40 embracing the support 34 and having loosely secured thereto by a bolt 44 a clamping-jaw 43 operated by a screw 45 bearing on the body of the clamp.
Patent GB-1534368-A (GB)
Title: Oscillation-damping means in vehicle-transmission train
IPC: F16F15/126
Filed: 1976-07-29
Abstract: 1534368 Torsional vibration dampers DAIMLER-BENZ AG 29 July 1976 [2 Aug 1975] 21097/78 Heading F2S An oscillation damper in a vehicle transmission train comprises two annular manes 24, 24a effective at different frequency values and mounted on a common flange 22 by respective parts of a rubber element 26 separated by a narrow gap or slit 32. The flange 22 is triangular so that the rubber element 26 consists mainly of three segments, there being a round opening 30 through the centre of each segment and an elongate opening 27 near each corner of the flange.