baber/WOPTO huggingface dataset:
Patent GB-849848-A (GB)
Title: Flexible metallic wrist-watch band
IPC: A44C5/00
Filed: 1958-03-10
Abstract: 849,848. Strap fastenings. MORF, E. March 10, 1958 [Dec. 3, 1957], No. 7642/58. Class 44. A flexible metallic wrist watch band comprises a pair of metal strips 3, 4, each provided with identical rectilinear transverse and equidistant slots 3a, 3b, 4a, 4b, and link means connecting the metal strips with one another, the slots being provided alternately from each side of the strips and extending from one edge of the strips to a distance from the opposite edge thereof which is approximately equal to the distance between two consecutive slots, one end of each metal strip being adapted for connection to a lug of a watch case and the opposite end portions of the strips being superimposed so that at least one slot of one of said strips coincides with one of the slots of the other strip, the link means comprising at least one member having a piston engaged simultaneously in a pair of coinciding slots. As shown two such link members 5, 6 are used each of which is approximately I-shaped in cross-section so that it has a web 8 for engaging in the slots and end flanges 9. Each member 5, 6 is normally engaged in the end slot of one strip to engage an intermediate slot of the other and to hold them in place the last transverse element of each strip is arched to frictionally engage the members. As shown the members 5, 6 extend only across the centre portion of each strip but in a modification they can extend across a whole width of the strips the members having a cut-out at one end to locally remove the web so that this can be done.
Patent GB-680369-A (GB)
Title: A process for producing dihydrostreptomycin
Filed: 1950-03-28
Abstract: Dihydrostreptomycin in the form of a salt is prepared by subjecting to superatmospheric hydrogen pressures a solution of a streptomycin salt throughout which is suspended a nickel catalyst, the temperature of said solution being 50 DEG  to 105 DEG  C., and terminating the reaction when one molecule of hydrogen has been reacted per molecule of streptomycin.  Suitable water-soluble salts are the hydrochloride, hydrobromide, sulphate, phosphate and calcium chloride double salt. Hydrogenation is preferably carried out in aqueous solution, but water-miscible solvents, e.g. methyl alcohol and ethyl alcohol in which the streptomycin salts are soluble, may be used.  The quantity of the streptomycin salt used is 10 to 25 per cent of the solvent, and the catalyst 1 to 4 per cent of the solvent.  The nickel catalyst, preferably Raney nickel (Al-Ni alloy), may be used per se, or supported on kieselguhr or the like.  The hydrogen pressure is 500 to 2000 lbs. per sq. inch and preferably 700 to 1000 lbs.  In an example, 100 grs. streptomycin sulphate dissolved in 350 ml. water is agitated with 15 grs. Raney nickel at 70 DEG  to 80 DEG  C. with a hydrogen pressure of 700 to 1000 lbs. for 6 1/2 hours, when the absorption of one molecule of hydrogen per molecule of streptomycin is shown by a negative maltol test.  Specification 642,249 is referred to.
Patent GB-241793-A (GB)
Title: Holding and carrying device for making a travelling bag out of a travelling rug or the like
IPC: A45F5/00
Filed: 1925-03-23
Abstract: 241,793. Hellwig, M. March 23, 1925. Bugs; parcel carriers. - A portable hold-all is formed from a travelling rug, plaid or the like and a walking- stick, umbrella or the like in conjunction with a supporting framework comprising a bar 1 having three yokes 2 secured thereto and a strap 6 forming a handle. Clamping and supporting 'bars 7, 7 extend along the lower inner edges of the yokes, and the dis. tance between them can be adjusted by a screw 9. To form the hold-all a folded end of the rug &c. is passed between the clamping bars, and a stick &c. S inserted in the fold, so that it forms a frictional support for the rug &c. Articles to be packed therein are then assembled in the space 12, Fig. 3, and the lateral portions of the rug turned inwardly thereon. The part 10 of the rug which now consists of three folds is turned on itself towards the carrier and secured by straps 15, 16.
Patent GB-1092511-A (GB)
Title: Improvements in and relating to heat exchange systems
IPC: F22B1/18
Filed: 1963-02-27
Abstract: 1,092,511. Waste heat boilers. B. P. TANKER CO. LTD. and E. H. W. PLATT, A. NORRIS and D. J. GIBBONS. May 14, 1964 [Feb. 27, 1963], Heading F4A. Hot exhaust gases from both a marine diesel engine 24 and a direct fired gas generator 16 are used to generate steam in boiler unit 1. Gases from engine 24 pass via heat exchanger 7, to mixing chamber 15 then past tube banks 5, 6, 4 in unit 1 to generate steam. To supplement these gases, high temperature gases from air jacketed oil fed combustion chamber 2, together with recirculated cooled gases from off-takes 3, may alternatively or in addition flow to mixing chamber 15. Feed water from pump 12, preheated in heat-exchangers 9, 10 by water drawn from steam drum 8 by circulating pump 11, passes through the drum, to banks 4, 5 and then back to the drum as a steam/water mixture before passing to superheaters 6, 7. The steam pressure in drum 8 controls the oil fuel supply to chamber 2 through controller 19 and valve 20. The system may be applied to combinations of engines, combustors and steam generators to allow their alternative or conjoint use (Fig. 2). Back flow of gases from the combustion chamber to the diesel engine may be prevented by positively pumping the engine exhaust gases to the mixing chamber (Fig. 4) or by discharging them into a chamber surrounding the mixing chamber, into which the high velocity gases from the combustion chamber are discharged through a nozzle, so that the engine exhaust gases are drawn into the mixing chamber by a " Venturi " effect. The same effect may be used to draw in the recirculated cool gases from the offtakes (Fig. 5). Gases from either source may be separately or conjointly admitted to the boiler 1 intermediate of the normal entry and exit through temperature-controlled valves (Fig. 6), whilst the oxygen content of the mixed gases may be controlled by burning fuel in the combustion chamber using the engine exhaust gases as secondary air, the combustion being controlled by a gas composition controller (Fig. 7). The boiler may be of the forced circulation, natural circulation or forced flow once through type. The gases from the two sources may pass through the boiler as separate streams separated by baffle plates 28, 29, Fig. 3, the gases being diverted to flow through the middle section by damper 26 controlled by controller 31 which also controls the oil supply feed valve 32 to the steam/water jacketed combustion chamber 2 which is used as a steam and water drum and so prevents the need for gas recirculation.
Patent GB-1330602-A (GB)
Title: Process for manufacturing 1-2 epoxides
IPC: C07D303/04
Filed: 1972-02-21
Abstract: 1330602 1,2-Epoxides INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 21 Feb 1972 [22 Feb 1971] 7956/72 Heading C2C In a process for the manufacture of 1,2- epoxides, wherein molecular oxygen is reacted with an olefin in the liquid phase, and the medium of the reactants is stirred up, the stirring being performed with a power from 0À986B Î 10<SP>-1</SP> to 0À9863 Î 10<SP>-3</SP> HP/m.<SP>3</SP>. The reaction may take place in the presence of a catalyst containing at least one metal or one compound of a metal from Groups V to VIII of the periodic classification of elements. A solvent may be used with the olefin. The stirring is preferably performed by means of a turbine but may also be achieved by such means as shaking apparatus, gas-siphoning, continuous bubbling and recirculation pumping.
Patent GB-1024139-A (GB)
Title: A washing container for a dish washing machine
IPC: A47L15/42
Filed: 1965-02-24
Abstract: 1,024,139. Dishwashing machines. VEREINIGTE DEUTSCHE METALLWERKE A.G. Feb. 24, 1965 [Feb. 25, 1964], No. 8008/65. Heading A4F. A washing container for a dish washing machine is formed as an integral injection moulded component of plastics material. Formed in the moulded component may be stiffened flanges 1 (Fig. 1, not shown) surrounding the door opening for the reception of rubber seals, an exterior drip tray 5 beneath the door opening, a sump 6 formed with two drain outlets 7, openings 8, 13 for mounting upper and lower sprayer arms, flanges 9 for attaching the container to a base, guide channels 11 for dish baskets, retaining projections 16 for the baskets, a water supply conduit 12, aerating and venting channels 15, and an overflow outlet 17 (Fig. 4, not shown).
Patent GB-307218-A (GB)
Title: Improvements in or relating to lifting jacks and like apparatus
IPC: B66F5/04
Filed: 1928-03-16
Abstract: 307,218. Lloyd, H. J. March 16,1928. Jacks.-Hydraulic lifting-jacks of the kind operated by rocking a lever about its pivot and having the lever fitted with a detent to enable it to operate the lowering mechanism, have the rocking lever linked to the pump and the detent in its operative position co-acting with a tripping member. The handle 10 of the hydraulic jack operates the pump plunger 9 through a link 12. The handle is hollow and has a tubular extension 20 carrying a collar 23 in which slides a rod 22 having a head 25 pressed upwards by a spring 26 and a bolt 21 at its lower end engageable with a lever 16 mounted on a pivot 17 on the casing and adapted to operate the release valve 14 for lowering the load, the lever working in slots 18 in the handle. The head 25 has a stud 27, Fig. 2, engaging a bent slot 28 in the tube 20. When the stud is engaged in the short arm 29 of the slot, the bolt 21 engages the lever 16 so that when the handle 10 is rocked the release valve is opened and the load lowered.
Patent GB-844900-A (GB)
Title: Improvements in fluid actuated power units
Inventor: ENGLISH ROBERT ERNEST
IPC: F15B11/072
Filed: 1958-03-13
Abstract: 844,900. Ironing presses. BRAITHWAITE & SON ENGINEERS Ltd., I. March 12, 1959 [March 13, 1958], No. 8022/58. Class 138 (2). [Also in Groups XXVI and XXIX] The initial opening movement of a garment press is at a controlled and slow rate, the press being of the fluid-pressure type having two pairs of operating cylinders, one cylinder (A, G) of each pair being connected to a source of pressure air, and the other cylinder (B, H) of each pair containing oil or other fluid. Air is admitted to cylinder A to give a long low-pressure closing movement of the press and to cylinder G to produce a short high-pressure movement. The opening movement is controlled by air-operated valve Y and a needle valve Z in a line connecting a passage k<SP>1</SP> between the cylinders H, B to a reservoir J. After the initial slow opening movement a valve AA is opened to exhaust and the press opens rapidly. Slow opening can be eliminated by a valve BB. The valve Y is normally closed by a spring-pressed ball y<SP>2</SP> and opened by an air-operated diaphragm y<SP>4</SP>. The invention is described as applied to the press in Specification 825,204.
Patent GB-975250-A (GB)
Title: Improvements in cyclone furnaces
IPC: F23C3/00
Filed: 1961-03-06
Abstract: 975,250. Cyclone furnaces. BABCOCK & WILCOX Ltd. March 6, 1961 [March 4, 1960], No. 8059/61. Heading F4B. A horizontal or slightly inclined cyclone furnace has a gas outlet at one end, the opening of which is spaced from the peripheral wall of the furnace chamber and which is closer to the bottom part than the top part of the furnace chamber wall. Pulverulent fuel and combustion air are injected into the furnace, chamber 1 through two rows of inlet openings 3 and 4 in the upper part of the furnace peripheral wall 2, the latter being of spiral form converging from the inlet 3 to an imaginary circle 5 centred on the chamber axis, 6. Gas leaves the chamber through a circular outlet opening 12 in a frustoconical collar 11 and an aperture 10 in the chamber end wall 9. The axis 13 of openings 10 and 12 and collar 11 is parallel to and below the chamber axis 6. The axis 13 is also to one side of the vertical plane through the axis. 6, this side being that associated with upward movement of the furnace contents. A slag outlet opening (not shown) is provided at the bottom of the end wall 9, and a frusto-conical recess is provided in the opposite wall 7 through which additional combustion air may be supplied and/or into which burners may be inserted for starting up the furnace. Specification 709,094 is referred to.
Patent GB-882550-A (GB)
Title: Molybdenum catalyst for use in converting hydrocarbons
IPC: C07C5/367
Filed: 1960-03-09
Abstract: Catalysts for use in hydrocarbon conversions are prepared by oxidizing, e.g. at 515 DEG  C., with oxygen or a mixture thereof with inert gases, the surface of particles of metallic molybdenum or molybdenum-aluminium alloy containing 1-33% Al while maintaining an unoxidized metallic core, and subsequently exposing to hydrogen (or a gas containing principally free hydrogen) at 350 DEG -700 DEG C., preferably 500 DEG -550 DEG C.  Specified alloys contain 2, 6,9, 10,17, 21,9 and 33% Al, the balance being Mo.  The catalysts can be regenerated with air or oxygen.ALSO:Catalysts for use in hydrocarbon conversions are prepared by oxidising, e.g. at 515 DEG C., with oxygen or a mixture thereof with inert gases, the surface of particles of metallic molybdenum or molybdemum-aluminium alloy containing 1%-33% Al while maintaining an unoxidized metallic core, and subsequently exposing to hydrogen (or a gas containing principally free hydrogen) at 350-700, preferably 500 DEG C-550 DEG C.  Specified alloys contain 2, 6.9, 10.17, 21.9 and 33% Al, the balance being Mo.  In examples methylcyclohexane and n-heptane are converted to mixtures of toluene and benzene.  The catalysts can be regenerated with air or oxygen.  Other conversions referred to are cracking, dehydrogenation, hydrogenation, isomerisation and reforming.ALSO:Catalysts for use in hydrocarbon conversons are prepared by oxidizing, e.g. at 515 DEG C., with oxygen or a mixture thereof with inert gases, the surface of particles of metallic molybdenum or molybdenum-aluminium alloy containing 1-33% Al while maintaining an unoxidized metallic core, and subsequently exposing to hydrogen (or a gas containing principally free hydrogen) at 350-700 DEG C., preferably 500-550 DEG C.  Specified alloys contain 2, 6,9, 10,17, 21,9 and 33% Al, the balance being Mo.  In examples methylcyclohexane and n-heptane are converted to mixtures of toluene and benzene.  The catalysts can be regenerated with air or oxygen.
Patent GB-472273-A (GB)
Title: Improvements in or connected with internal-expanding brakes for motor and other road vehicles
IPC: F16D65/54
Filed: 1936-03-20
Abstract: 472,273. Compensating for wear in brakes. PAGE, A. (Page, W.) March 20, 1936, Nos. 8322/36 and 8071/37. [Class 103 (i)] An adjusting device for a shoe 4 of an internalexpanding brake comprises a spring-pulled ratchet bar 11 or the like loosely pivoted to the shoe and cooperating with the toothed lower edge of a slot 16 in an angle - bracket 14 or other member fixed to the back-plate so that during application of the brake, should the wear of the shoe-lining 7 be sufficiently great, the bar 11 slips over the tooth 17 and on release of the brake the shoe is retained in a position nearer the drum 3. To provide for retraction of the shoe from an over-adjusted position into which it is moved when the drum is heated and which may cause, in the case of a vehicle brake, locking &c. of the road wheel on cooling of the drum, means are provided for automatically moving back the bar 11 to the necessary extent over the tooth 17. For this purpose, the friction head 21 of a plunger having a shank 22 occupies a recess 23 on the periphery of the shoe and projects slightly beyond the outer surface of the shoe lining, the shank extending through the shoe and having its bifurcated end passing over a projection 20 on the bar 11. Should the bar be over-adjusted to the extent of one tooth by the adjusting device when the drum is heated, it is retracted by the same amount when the drum cools by the shank 22 engaging the projection 20, the bar 11 being tipped about its pivot 13 and raised from the tooth 17, and the shoe thus pulled into correct position by the return spring. In modifications (a) the plunger is movable laterally and has a side projection normally spaced from the bar 11, and (b) a pin on the shank engages an elongated hole in a depending extension of the bar. As shown, the brake is operated by a fluid-pressure device but any other actuating means may be employed.
Patent GB-547304-A (GB)
Title: Electric circuit control
IPC: G05F3/10
Filed: 1941-07-04
Abstract: 547,304. Automatic control systems. STANDARD TELEPHONES & CABLES, Ltd. July 4, 1941, No. 8457. Convention date, July 11, 1940. [Class 38 (iv)] [Also in Group XXXIX] A constant voltage is obtained across a load 5 irrespective of variations of the voltage of a source 3 by the provision of a shunt circuit comprising in series two thermistors both of which have negative temperature coefficients of resistance and one of which does not alter its condition in response to current changes. A third thermistor 8 also having a negative temperature coefficient and being unaffected by variations in the current through it is shunted by a resistance 9 connected in series with the load to make the voltage across the load independent of temperature changes. The load may be the input to a pelot channel for regulating repeaters in a multiplex carrier system.
Patent GB-275894-A (GB)
Title: Improvements in or relating to concrete and mortar mixers
IPC: B28C7/04
Filed: 1927-03-28
Abstract: 275,894. Hahn, R. March 28, 1927. Feeding in definite proportions; driving- mechanism.-Feed mechanism for concrete &c. mixers comprises worm conveyers for the separate ingredients driven by disc and roller friction gearing, indicating means being provided for showing the positions of the rollers. In the form shown sand, gravel, and cement are fed from hoppers a, b, and c by worms into a well t whence they are taken by an elevator v to the mixing drum w The worms are operated by friction rollers m, n, o engaging the faces of discs h, i, k on the worm shafts. The positions of the rollers w, n, o is shown by pointers q, u. The rollers m, n for the sand and gravel feeds may be mounted in a yoke p so that as one increases the other decreases.
Patent GB-1281615-A (GB)
Title: Production of methyl esters
Inventor: HARRISON ANTHONY CARRUTHERS
IPC: C07C69/24
Filed: 1970-02-23
Abstract: 1281615 Methyl esters IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [23 Feb 1970] 8479/70 Heading C2C Methyl esters of carboxylic acids are prepared by reacting on olefine with carbon monoxide and methanols in the presence of a catalytic amount of a Group VIII metal carbonyl and a Lewis acid. The olefine, e.g. octene-1, and diisobutylene is reacted with the carbonyl, e.g. dicobalt octacarbonyl and the Lewis base which may be a lactam, N-alkylpyrrolidone, aliphatic amides and nitrile. An example describes the preparation of methyl nonanoate from octene-1 using N-methylpyrrolidone, acetonitrile or dimethyl formamide as the Lewis base.
Patent GB-686187-A (GB)
Title: Improvements in or relating to self-interrupted drive circuits for electromagnetically operated devices
IPC: H02M7/62
Filed: 1950-04-05
Abstract: 686,187. Electromagnetic interrupters. ERICSSON TELEPHONES, Ltd., and WILMAN, C. V. March 21, 1951 [April 5, 1950], No. 8528/50. Class 38 (v) [Also in Group XXXV] To reduce sparking at the self interrupted driving contacts of a periodically operating mechanism such as a vibratory inverter by reducing the current through them when they open, a capacitor Cl and inductor LA of suitable dimensions are connected in series with the driving contacts 4 and in parallel with the drive coil VDM. An airgap in the inductor core prevents polarization. Fig. 3 shows the current w through drive coil VDM rising steadily after closure of the contacts and then falling; current y through C1, LA rising to a peak and reversing at a rate determined by the natural period of the combination; and current x through contacts 4 which is the sum of w and y and rises to a peak and then falls to zero before the contacts 4 open. The invention may be applied to self driven pawl and ratchet uniselectors, automatic selector and sequence switches, and bells and buzzers operated from D.C.
Patent GB-1105850-A (GB)
Title: Improvements in or relating to delay compensating signal circuits
IPC: H04N5/073
Filed: 1967-02-23
Abstract: 1,105,850. Automatic phase control systems; television. MARCONI CO Ltd. 23 Feb., 1967 [24 Feb., 1966], No. 8635/67. Headings H3A and H4F. Television synchronizing signals from a control unit 9 to a remote camera unit 7 are transmitted over a cable 6 and advanced in time according to the delay in the cable. A multivibrator 4 is triggered by a sawtooth wave from generator 2 superimposed on a D.C. level determined by a clamping stage 3, and feeds the cable 6 which has a reflecting termination at the remote end 7; the reflected wave passes to the clamping stage 3 to increase the D.C. level in accordance with the transit time down the cable thereby causing the multivibrator to trigger earlier. The input end of the cable is terminated by a matching impedance 5 to prevent re-reflections.
Patent GB-1065410-A (GB)
Title: Improvements in or relating to apparatus and method for producing simultaneously photographic traces of several electrical signals
IPC: G01D15/14
Filed: 1965-03-01
Abstract: 1, 065,410. Recording-apparatus; beam-oflight and oscillographs. DRESSER SIE Inc. March 1, 1965 [March 2, 1964], No. 8737/65. Headings G1J and G1Q. In a multichannel oscillograph Fig. 1 (not shown) consisting of a plurality of moving mirrors (C), attached for example to moving coil galvanometer suspensions, producing separate traces on a common moving photographic sheet (B) by reflection of light from a common source (D), there is a single slit-like aperture of adjustable width through which all the separate light beams pass. This slit is formed in an opaque screen (E) placed between the mirrors and the photographic sheet. By varying the slit width the thickness of the recorded traces may be adjusted, and by varying the distance between the slit and a cylindrical lens (58) by which the light beams are focused on the photographic sheet the overall record width occupied by the traces can be adjusted. Fig. 9 (not shown) depicts an arrangement by which both these adjustments may be made. If between the light source and the mirrors the light passes through a narrow slit, the beam focused on the record is a spot whose amplitude of movement is recorded (variable amplitude recording): if however it passes through a larger and rectangular aperture containing either a clear or a gradated-density filter, the recording may be in terms of variable area or variable density of the recorded trace. To allow for selection between these methods of recording a stop 32 Fig. 5 (not shown) containing three suitable apertures is located between the light source and the mirrors.