baber/WOPTO huggingface dataset:
Patent GB-631971-A (GB)
Title: Improvements in or relating to alternating current propulsion systems for ships
IPC: H02P9/04
Filed: 1947-01-28
Abstract: 631,971. Transmitting mechanical power. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Jan. 28, 1947, No. 2623. Convention date, July 30, 1943. [Class 38 (iv)] To prevent stalling of the primemovers when starting or reversing the propeller motor of a ship with alternating current electric power transmission, means are also provided for automatically controlling the generator excitation, in accordance with prime-mover speed, for maximum torque during acceleration. Preferably, interlocks are provided whereby the generator excitation circuits cannot be completed until the generator-motor circuit is closed. In the system shown, alternators AL1-3, driven by diesel engines DE1-3 conjointly controlled by a speed control lever SCL, supply busbars PB to which the propulsion motor MOT may be connected over reversing switches S1-S6. Excitation for the alternators and motor is provided by generators AG, MG, separately excited from a constant voltage source CVS in association with a voltage regulator VRG controlled by a tachometer generator PG driven by a motor PM at a speed proportional to the frequency of the alternators. A control lever CL1, CL2, or CL3, Fig. 4, having three positions, is provided for each alternator, whilst a multi-position lever MCL controls the motor connections, the " CL " levers controlling the excitation and armature circuit switches in the sequence shown in Fig. 2, whilst lever MCL controls switches S1-S21 in accordance with Fig. 3, from which it will be seen that switches S13-S15 prevent excitation of the alternators until the motor control lever is moved from the " stop position. In the first two positions (either " ahead " or " astern ") of lever MCL the motor is connected to the busbars PB and the alternators excited by the machines MG, AG in series and which are subject to voltage control by machine PG. In position " 2 " excitation from machine MG is also applied to the motor. In position " 3 " voltage control is cut out by closure of S18, whilst opening of S19-S21 to interrupt the drive to PG, and the opening of 813 and closing of S15 to give normal generator excitation by machine AG alone, follow on movement of MCL to positions " 4 " and " 5." Mechanical or electrical interlocks may prevent movement of MCL from the " stop " position unless one of the " CL '' levers is in the " run " position.
Patent GB-1171973-A (GB)
Title: Brazing Parts of Titanium or Titanium Alloy
IPC: B23K35/00
Filed: 1967-01-19
Abstract: 1,171,973. Brazing. GENERAL MOTORS CORP. 19 Jan., 1967 [18 May, 1966], No. 2816/67. Heading B3R. [Also in Division C7] A brazed joint between two sections of titanium or titanium based alloy comprises a ductile fatigue-resistant alloy containing chromium, silver and titanium. The titanium surfaces to be brazed are cleaned by wet vapour blasting with silica flour, dried and then coated with chromium by vacuum deposition, a film of 0À00005 to 0À001 inch thickness being preferred. The coated sections are placed in a fixture with silver based brazing alloy located between them and the brazing alloy is melted in argon. The silver brazing alloy alloys with the titanium and chromium to form a ductile diffused bond adjacent each titanium section. The titanium sections may comprise 6% aluminium, 4% vanadium, balance titanium and the brazing alloy may comprise 50-95% silver, 0-5% aluminium, 0-40% copper, 0-5% zinc, 0-1 % nickel and 0-0À2% lithium, e.g. 95% silver, 5% aluminium. The chromium may be plated or sprayed on to the titanium surfaces, incorporated into the silver brazing alloy, incorporated in a laminated brazing material of chromium on each side of silver alloy or diffused into the titanium surfaces.
Patent GB-1568195-A (GB)
Title: Synthetc peptides
IPC: C07K7/08
Filed: 1978-01-24
Abstract: Peptides which contain at least four amino acids and are characterised by the presence of an amidino-substituted  alpha -amino acid, such as arginine, at the carboxyl terminus, are effective for regulating the contraction of the smooth musculature, the release of histamine and the permeability of the vessels. They contain an amidino-substituted  alpha -amino acid as the first amino acid at the carboxyl terminus, which acid is bonded by a peptide bond to the carboxyl group of glycine or alanine. This second amino acid is bonded via its amino group with the carboxyl group of a third, hydrophobic amino acid. This latter acid is in turn bonded via its amino group with the carboxyl group of a fourth amino acid.
Patent GB-607187-A (GB)
Title: Instrument capable of ascertaining the angle of an inclined surface and the length of such surface and for delineating angles
IPC: G01C9/24
Filed: 1946-01-29
Abstract: 607,187. Calculating-apparatus. HUNT, K W., and WOODWARD, H. P. J. Jan. 29, 1946, No. 2831. Convention date, Jan. 23, 1945. [Class 106 (i)] An instrument for use by builders and capable of ascertaining the angle of an inclined surface and the length of such surface and for delineating angles, consists of a base 10 incorporating a slidable scale 13, juxtaposed graduations 32, 33 on the base parallel to the slidable scale, a rotatable cursor 15 mounted on the base, at least two pointers on the cursor, one of said pointers A being juxtaposed graduations on the slidable scale and the other pointer B, C or D being juxtaposed graduations 24-31 formed angularly about said cursor and a level bulb 22 in the cursor. The base also has a level bulb 34. Examples are given of the use of the .apparatus.
Patent GB-251352-A (GB)
Title: Improvements in and relating to advertising and like devices
IPC: G09F23/00
Filed: 1925-01-31
Abstract: 251,352. Scrase, G. B., and Jarrett, C. H., (trading as Non-Stop Talking Sign Co.). Jan. 31, 1925. Cylinders and like elements, rotating; actuating. - In advertising &c. devices in which a stencil revolves about a source of light, a sharply defined image is projected upon the screen by restricting the effective source of light rays, e.g. by enclosing the source in a casing b<1> having a small aperture b<2>. The screen c may be hemispherical in form, and be secured in place by a ring c<1> hinged at c<2>. The light source may be an elongated electric lamp b, held in the casing b<1> by a spring b<5>, insulating caps d<1> providing connecting means to the leads d. The lower part. of the casing b<1> is open at the back and forms a reflector to illuminate objects at the rear; the upper part is blackened internally, and is hinged to allow access to the lamp. The pivot for the stencil f consists of a point preferably carried in a hole in a screwed rod e<2> and engaging an inverted cup f<6> of glass &c. attached to the vane disc f<3>. A rod e<2> screws through a slidable member e<1>, thus giving horizontal and vertical adjustment to the pivot. The stencil f has an inwardly-turned flange f<2> which rests on the vane disc f<3>, permitting easy change of stencil. A hood a<4> prevents light reaching the screen c through the vanes f<4>.
Patent GB-685349-A (GB)
Title: Mechanism for feeding cylindrical articles to machine tools
IPC: B65G47/08
Filed: 1951-02-06
Abstract: 685,349. Feeding cylindrical objects to grinding-machines; jigging conveyers. TIMKEN ROLLER BEARING CO. Feb. 6, 1951. No. 2854/51. Class 78 (i). Cups 13 pass from receiving shoot 14 into feeding shoot 15 where they are partly supported by support 16 adjustably mounted. by arm 17 and fall therefrom into cylindrical holder 19 where they rest on bars 11 and are conveyed therealong face-to-face to the grinder by vibrating movement of said bars 11 which are supported on two springs vibrated electomagnetically. Stop 21 stops the cups in shoot 14 and stop 23 permits withdrawal of a cup. Wheel 5 supports the vibratory system at a point such as to avoid dormant conveying area.
Patent GB-686597-A (GB)
Title: Improvements in devices for automatically returning doors or like pivoted members to closed or open positions
IPC: E05F1/12
Filed: 1950-02-03
Abstract: 686,597. Door-operating appliances. LAMBERT, H. J. M., and MONGIN, G.P. Feb. 3, 1950 [Feb. 23, 1949], No. 2898/50. Class 65 (i) A door 15 hinged at X-X to a support 3 is closed by a device comprising a member 4 connected to the door, and a member 6 pivotally connected to the support about an axis 7 and urged by spring means 10 to stable positions 8a, 8c one on either side of an unstable medial position 8b, the members 3 and 4 being interengaged solely when the door is between a partly open position corresponding to one of the stable positions and the closed position corresponding to the other stable position, thereby to urge the door into either the partly open or the closed position, the device being characterised in that said members are connected to the door and support, respectively, in the immediate vicinity of the door hinge. As shown, the members are formed with intermeshing teeth, and the spring, of the compression type, is mounted on a rod 9 which is pivoted at one end to member 6 and at the other end loosely passes through on aperture in a fixed casing 12. In a modification a tension spring is connected to member 6 between the axis 7 and the teeth. In further modifications inter-engagement occurs between a fork provided on either member 4 or member 6, and a roller provided on the other member.
Patent GB-726210-A (GB)
Title: An electrode assembly for thermionic valves
IPC: H01J19/42
Filed: 1953-02-02
Abstract: 726,210. Electric resistance heaters. PHILCO CORPORATION. Feb. 2, 1953 [Feb, 11, 1952], No. 2929/53. Class 39 (3). [Also in Group XL(a)] A heater for the cathode of a thermionic valve comprises a central rod 16 of molybdenum or the like coated over most of its length with ceramic 17 and provided with a helical heater coil 18 of tungsten or the like wound round the ceramic coating. The ceramic coating is interrupted near the top end in Fig. 1 and the coil 18 is joined to the rod 16 at this point so that the lower end of the rod 16 may be used as a lead-in connection to the upper end of the coil 18.
Patent GB-488915-A (GB)
Title: Improvements in or relating to the manufacture of rubber or like gas expanded structures
IPC: C08J9/12
Filed: 1938-01-31
Abstract: In the manufacture of gas expanded sponge rubber, a mixture of gases soluble in the rubber such as ammonia, or carbon dioxide, with insoluble gases such as nitrogen or helium, is employed.  A mixture of the gases in e.g. substantially equal proportions, may be forced into the rubber under pressure, and subsequently released. Vulcanization takes place after release, but a preliminary partial cure may be given.  Alternatively, one or both gases may be generated in situ by decomposition of suitable compounds, such as ammonium carbonate for the carbon dioxide, and diazoamino benzene or a mixture of ammonium chloride and sodium nitrite for the nitrogen.
Patent GB-910430-A (GB)
Title: Electrical circuit protective arrangements
IPC: H03G11/02
Filed: 1961-01-26
Abstract: 910,430. Transistor circuits. NATIONAL CASH REGISTER CO. Jan. 26, 1961 [Feb. 25, 1960], No. 3037/61. Class 40 (6). [Also in Groups XXXV and XXXVII] In a system having a D.C. supply source 10 supplying a load 11 which may include transistors, overvoltage protection is effected by means of a transistor 20 or other controllableimpedance device connected in shunt with the load 11 and normally biased to non-conduction by a voltage derived from a resistor 19 and a Zener diode 18 or other constant potential device connected between supply conductor 24 and a source of biasing potential 17. When the voltage of the supply source 10 rises above a predetermined value, the resulting bias voltage applied to the base of the transistor 20 causes the transistor to conduct and provide a shunt path permitting increased current to flow causing the blowing of a fuse 12 or the opening of a circuit-breaker.
Patent GB-968021-A (GB)
Title: Weighing machine
Inventor: FARQUHAR JOHN CHURCHILL
IPC: G01G23/06
Filed: 1960-01-28
Abstract: 968,021. Weighing-apparatus. FISONS FERTILIZERS Ltd. Jan. 16, 1961 [Jan. 28, 1960], No. 3038/60. Heading G1W. A weighing machine adapted to measure continuously the load on a given length of a conveyer belt comprises a supporting structure, a lever system, means on the load arm of the lever system bearing against the underside of the belt and means on the power arm to activate a forcemeasuring instrument, the power arm having a degree of flexibility and vibrations of the lever system being damped by a dashpot. Rollers 12, bearing against the underside of a conveyer belt, not shown, are mounted on a frame 10 which is pivoted on a member 4 of the supporting structure by a cross flexure strip bearing 11 and has an arm 20 on which is a counterweight. The vertical and horizontal strips of the cross are bolted to an angle 29 and plates 32, 34 on a projection 27 from the member 4. A flexible beam 14 is hinged, by a horizontal flexure strip 15, to an extension 16 from the pivoted frame 10 and is itself pivoted on a fulcrum 8. The fulcrum 8 is adjustable along a fixed horizontal member 7. Increase in load on the conveyer belt lowers the frame 10, the movement being damped by a dashpot 19, and causes the flexible beam 14 to operate a load cell 17 which measures variations of force applied to it. The adjustability of the fulcrum 8 allows the machine to be set for maximum reading on the load cell for the expected maximum load and the action of the dashpot 19 combines with the flexing of the lever system to allow the load cell to follow accurately changes due to sudden increase in weight.
Patent GB-764636-A (GB)
Title: Improvements in or relating to banding machines
IPC: B65B13/10
Filed: 1955-02-02
Abstract: 764,636. Binding machines; wire strainers. LARSSON, J. O. Feb. 2, 1955 [Feb. 2, 1954], No. 3112/55. Class 45. [Also in Groups XVII and XXII] A metal strip 2 for binding a package 11 is fed through a guide 3, see Fig. 1 (not shown), having spring-loaded rolls 4, 5 and a ratchet and pawl mechanism 6, 7. At least one of the rolls may be rotated to pre-tension the strip prior to the joining and cutting operation in which case the mechanism 6, 7 is rendered inoperative. The end of the strip is initially bent over by a member 19, see Fig. 1a, which is carried by a driven chain 16 and wraps the strip around the package. Tensioning is effected by a knurled roller 20 which is mounted in a lever 21 and is driven by an electric motor 29. The motor is mounted on a frame 30, 31 which is pivoted about a shaft 27 and is mounted on the lever 21 by a spring 32 or a mechanism incorporating a counterweight. After the wrapping operation the electro magnets of a lifting device 24 are de-energized to allow the roller 20 to engage the strip and tension it. After a certain tension is set up the arm 31 is moved to de-energize the motor 29 and the electro magnets of a lifting member 40 whereupon a pair of spot welding electrodes 35 and a cutter 36 contact the strip, welding being controlled by a timer C50, see Fig. 4 (not shown). The members 24, 40 are finally energized to retract the members 20, 35, 36 and the package 11 is laterally displaced. In a modification, see Fig. 2, the tensioning is effected by rolls 4a, 5a, at least one of which is driven. As shown, the rolls 4a is driven whilst the idler 5a is eccentrically mounted so that it can be swung by electromagnetic means into contact with the strip. The roll 4a is driven by an electric motor 42 through the gear train shown. The cage 47 of the gearing is rotated against the action of a spring 48 when the torque required for drawing back the strip exceeds a given value and has a lug to operate a switch for opening the motor circuit. The roll 5a is released when the strip has been welded.
Patent GB-739404-A (GB)
Title: Curtain heading tape
IPC: A47H5/032
Filed: 1954-02-03
Abstract: 739,404. Curtain pleating tape. FRENCH, G. F., and FRENCH, R. Feb. 3, 1954 [Feb. 3, 1953], No. 3159/54. Class 52 (5). A curtain heading tape comprises a narrow front tape attached at intervals to a wide back tape to form alternate long and short unconnected portions, the short unconnected portions partially forming hook tubes, and a draw cord passing in and out of the long unconnected portions and at least partially in front of the short unconnected portions. The tape may be secured to a curtain 10 which is relatively stiff in the vertical direction being made of bamboo slats 11 secured in the loops of a multistrand thread 12. The lower edge of the back tape 13 is stitched at 24, 25 to the curtain and the front tape 14 is bound into the upper part of the back tape at 15, 16, 17 to form long unconnected portions 18 and short unconnected portions 19, each of the portions 19 forming part of a hook tube 20 receiving a suspension hook 30 similar to that disclosed in Specification 582,667. A draw cord 23 passes several times through each long unconnected portion and passes in front of each unconnected portion to which it is tacked by picks from the weft during weaving to prevent displacement when the hooks are inserted. The limbs 33, 34 of the hooks clamp the draw cord relatively to the hook tubes to preserve the pleating of the curtain from disarrangement.
Patent GB-981264-A (GB)
Title: Hydrodealkylation process
IPC: B01J29/06
Filed: 1963-01-25
Abstract: Hydrodealkylation catalysts consist of zeolite X (Specification 777,233), zeolite Y (Specification 909,266), zeolite L (Specification 909,266) or faujasite containing 0.01-0.20 wt. per cent of a finely dispersed elemental metal selected from the group copper, cadmium, tin, lead, antimony, bismuth, mercury, gold and Group VIII metals. The metal may be dispersed within the zeolite by either cationic exchange with a simple salt solution e.g. CuSO4 or NiCl2, followed by reduction at 300-600 DEG  C. in an atmosphere of hydrogen or by cationic exchange with a complex cationic salt solution, e.g. tetrammine Pt II, trisethylenediammine Pt IV or tetrammine Pd II salts, followed by heating at 300-550 DEG  C. in an oxygen-containing atmosphere. Specifications 919,936 and 981,094 also are referred to.ALSO:The hydrodealkylation of alkyl substituted aromatic hydrocarbons is carried out by contacting said hydrocarbon with hydrogen at 400-650 DEG  C. in the presence of a zeolite having (1) an apparent pore size of at least 6.6<\>rA; (2) more than 92% of the aluminium atoms associated with cations; (3) a metal cation which is at least 91% monovalent when the silica :alumina ratio is greater than 3; and (4) an elemental metal selected from copper, cadmium, tin, lead, antimony, bismuth, mercury, gold and Group VIII metals, being finely dispersed within the zeolite.  The elemental metal may constitute 0.01-2.0 weight % of the zeolite. Reaction pressures of 50-600 p.s.i.g., weight-hourly-space velocity of hydrocarbon feed of 0.5-2.0 grams feed per gram zeolite and hydrogen to hydrocarbon feed molar ratio of 1-20 are the specified conditions.  All examples describe the hydrodealkylation of toluene to benzene.  Specifications 777,233, 909,264, 909,266, 912,936 and 981,094 are referred to.
Patent GB-270785-A (GB)
Title: Improvements in apparatus for pickling metal plates and sheets
IPC: B08B3/04
Filed: 1926-02-04
Abstract: 270,785. Wolverhampton Corrugated Iron Co., Ltd., and Jones, E. P. Feb. 4, 1926. Pickling.-In an apparatus for pickling metal sheets, etc.; the sheets, &c., are supported in cradles B carried by stirrups g depending from the longitudinal members G of a frame into the vat or vats A, containing the pickling liquor. The frame is oscillated by the engagement with pulleys or rollers H mounted on studs h in the cross-members G<1> of the frame of bars d mounted on opposite ends of a longitudinal rocking shaft D mounted between the vats A and operated by a crank F and a, connecting rod f secured to a crank pin f<1> on a rotating disc or crank f<2> driven from any source of power. The rocking frames are guided vertically by posts g<1> which pass through holes in the beams G<1>. The cradles B are made of open lattice work provided with trunnions b for the engagement therewith of the hooks K depending from the gantry M of an overhead travelling crane which move the cradles to and from the vats. An additional winch N may be provided on the crane and is fitted with hooks n to engage eyes or shackles b<1> at the bottom of the cradles B for the purpose of tippling the latter to remove the pickled plates therefrom.
Patent GB-138626-A (GB)
Title: Improvements in anti-skid devices for vehicle wheels
IPC: B60C27/06
Filed: 1920-02-03
Abstract: 138,626. Schmidt, C. D. Feb. 3, 1919, [Convention date]. Tread bands.-An anti-skid device for vehicle wheels consists of a series of similar elements 6, such as chains, arranged so that a part lies transversely across the tread and the other part or parts are connected to an adjacent element or elements so as to form a continuous retaining ring of less diameter than the wheel on one or both sides thereof. In the arrangement shown in Fig. 4, the ends 11 of each element 6 are carried in the same direction on opposite sides of the wheel and are connected by hooks 12 to the succeeding element. In another arrangement, the ends may be carried in opposite directions and connected to both the adjacent elements. Fig. 5 shows another construction in which each element has one part 20 wrapped round the tyre and secured at 22 while the other part 21 is secured to an adjacent element by the hook 22<1>.
Patent GB-1059542-A (GB)
Title: Improvements in or relating to flowmeters
Inventor: KEENE HAROLD JOSEPH
IPC: G01F1/22
Filed: 1964-01-25
Abstract: 1,059,542. Flowmeters. GEORGE KENT (STROUD) Ltd. Jan.25, 1965 [Jan. 25, 1964], No. 3320/64. Heading G1R. A flowmeter has two opposed end fittings 1 spaced by side plates 9, each fitting comprising a fixed body section 3 and flange section 4 spaced by a sealing ring 7. The flange section 4 forms a seating for an adaptor 14 which is surrounded by a peripheral ring 15 sealed by an O-ring 16. The adaptor is formed with a groove 18 housing a further O-ring 19 which seals against the inner surface of the flowmeter tube 20. In the assembled condition locking ring 23 screws on to threads 13 of the flange section 14 to clamp the adaptor flange 17 against its seating.
Patent GB-166925-A (GB)
Title: Improvements relating to steam generators
IPC: F28G3/10
Filed: 1920-02-04
Abstract: 166,925. Baillie, R. Feb. 4, 1920. Cleaning internally, rotary appliances for.--A rotary helical scraper e fitted in a water-tube b connected to the bottom of a drum of a watertube boiler is mounted on a perforated hollow shaft d, through which feed-water may be introduced. Scale is washed away through an opening m.
Patent GB-837916-A (GB)
Title: Improvements relating to telescopic tubular pit props
Inventor: FRYE COLIN MICHAEL
IPC: E21D15/15
Filed: 1957-01-31
Abstract: 837,916. Mine roof supports. DOWTY MINING EQUIPMENT Ltd. Jan. 17, 1958 [Jan. 31, 1957], No. 3461/57. Class 20(2) [Also in Group XXX] An hydraulic pit prop comprises a ram 11 in a cylinder 10, the upper end of the cylinder having an outwardly flared flange 19 containing a bearing ring 21 having a flange 22 abutting against the end of the flange 19. As shown the ring 21 is a split ring held to the cylinder 10 by a strip welded mild steel ring 27 with a scraper edge 29 which encloses a resilient packing and wiper ring 24 and a lubricating nipple 26. Alternatively the ring 21 may be welded to the cylinder 10, completely enclosing a metal scraper ring and retaining a frustum shaped metal spacing ring and a V-section packing ring, both seated lower in the flange 19 (Fig. 3, not shown, refers). If the ring 24 is used instead of the seal 20 as the main pressure seal it presents a concave face to the interior of the prop. When the prop is contracted, a flange 17 secured to its head rests on the ring 27. Another flange 17a is used for manual extension in addition to a pump 12. A relief valve 15 is provided.