baber/WOPTO huggingface dataset:
Patent GB-755119-A (GB)
Title: Hydrogenated carbomycin derivatives and therapeutic products containing same
IPC: C07H17/08
Filed: 1954-02-17
Abstract: Hydrogenated carbomycin in the form of the tetrahydro- or hexahydro-compound, having increased stability over carbomycin per se, is produced by contacting carbomycin, or a salt thereof, in solution with hydrogen in the presence of a hydrogenation catalyst. Solutions containing 1 to 30 per cent of carbomycin and 5 to 100 per cent catalyst (based on antibiotic) are used at temperatures of 15 to 30 DEG  C. and pressures of up to 5 atmospheres. The hydrogenated antibiotic is recovered by removing the catalyst by, e.g., filtration and evaporating the solvent, preferably in vacuo.  The residue if oily is treated with water to precipitate a white solid which is recrystallized from isopropanol-petroleum ether mixtures.  Specified reaction solvents are water (for salts), methanol, ethanol, isopropanol, diethyl ether, dioxane, and ethyl acetate.  Preferred catalysts are the noble metal catalysts especially palladium, e.g. palladium-on-carbon.  Salts may be produced by suspending the hydrogenated carbomycin in water and adding the acid to the suspension so produced.  Specified are the hydrochloride, sulphate, phosphate, acetate, citrate and tartrate.  Certain physical characteristics of tetrahydrocarbomycin are disclosed. The antibiotic is incorporated in pharmaceutical preparations (see Group VI). Specification 732,150 is referred to.ALSO:Tetrahydrocarbomycin and hexahydrocarbomycin prepared by the hydrogenation of carbomycin (see Group IV(b)), have increased stability over carbomycin per se and each, as such or in the form of their salts, are formulated into pharmaceutical preparations such as ointments, capsules and tablets by admixture with the appropriate diluents.  Specified salts are the hydrochloride, sulphate, phosphate, acetate, citrate and tartrate. Specification 732,150, [Group IV(b)], is referred to.
Patent GB-958874-A (GB)
Title: Handle and closure device for thermoplastic bags
IPC: B65D33/16
Filed: 1963-02-05
Abstract: 958,874. Bags. L. LAGUERRE. Feb. 5, 1963 [April 4, 1962], No. 4684/63. Heading A4G. A thermoplastic bag 7, Fig. 4, has two thermoplastic strips 1a, 1b, Figs. 1, 2 heat welded along the two mouth edges 7a, 7b, each strip having a central gripping handle 2 and complementary, integrally-moulded snap-closure studs 4 and sockets 6.
Patent GB-469968-A (GB)
Title: Improvements in or relating to packing cases
IPC: B65D85/50
Filed: 1936-02-17
Abstract: 469,968. Boxes. BERTOUX, E. V. Feb. 17, 1936, No. 4777. [Class 18] A cross-bar 2 for holding flowers &c. in a box is provided at both ends with axial pins 7 which engage under teeth 6 on a plate 4 so that the bar can be held at various heights. When filling or emptying the box, the pins are moved into slots 8. The plates 4 are secured to channel or other shaped bars 3 which, in their turn, are secured to opposite sides of the box, or the plates may have downbent lugs &c. by which they are fixed to and spaced away from the sides of the box. The teeth may also be formed on one end of the plate which is secured to the box side by a narrower batten. Headed pins 7 are employed.
Patent GB-1079552-A (GB)
Title: Telemetry and control system
Inventor: DUVIVIER CHARLES LOUIS
IPC: G08G1/081
Filed: 1965-02-03
Abstract: 1,079,552. Transmitting systems. LABORATORY FOR ELECTRONICS Inc. Feb. 3, 1965, No. 4793/65. Heading G4H. In a transmitting system having several transmitters and at least one receiver, counters at each of the stations, receiving clock pulses from a common pulse generator, control gates so that the input data is sequentially fed to a common transmission channel, the clock pulses from the pulse generator also being fed to the various stations via this channel. In the form shown the pulse generator is situated at a master transmitter (Fig. 1) the clock pulses from it being fed via an OR gate 8 and a tone gate 10 where they modulate an audio tone to all other transmitters and receivers via a common transmission channel 20. The pulses are also fed to a 32 position counter 22 controlling NOR gates 33, 34, 35, and also, when full, transmitting a synchronizing pulse via the OR gate 8. The inputs to the NOR gates are sequentially fed to a modulator 42 where each input is converted into a pulse, the width of which corresponds to the magnitude of the input signal. The output from the modulator 42 is applied to a tone gate 46 where it modulates an audio tone which is then transmitted over the transmission channel. At all other transmitters (Fig. 4) a clock tone receiver 70 passes the clock pulses to further 32 position counters 76 which control NOR gates so that the input to these gates are sequentially fed to further modulators and tone gates for transmission. At a master receiver, Fig. 5, a clock tone receiver 110 passes the clock pulses to a counter 114 the output from which is fed to all other receivers together with the clock pulses. At each receiver NOR gates are sequentially enabled by the counter so that each transmitted signal after demodulation is fed via the gates to storage units which are in turn connected to indicators. The outputs from the storage units may be used to actuate automatic traffic control mechanisms. In one embodiment the inputs to the NOR gates may have one of four discrete values depending on which is any of three relays (450, 452, 454, Fig. 10, not shown) are energized. The outputs from the storage units at the receivers may then be applied to voltage dividing circuits each comprising tapped resistors (466, 468, 470) connected to Schmitt triggers (472, 474, 478) to selectively render transistors (473, 475, 479) controlling relays (482, 484, 486) conducting. To prevent error the data pulses may be applied to render a transistor (502, Fig. 11, not shown) conducting so that when a clock pulse arrives simultaneously it passes to ground and in the event of the data pulses and clock pulses not being received synchronously the transistor is rendered non-conducting and the clock pulses actuate a trigger circuit to operate an alarm.
Patent GB-567068-A (GB)
Title: Improvements in single-acting reciprocating pumps
IPC: F04B53/16
Filed: 1943-03-25
Abstract: 567, 068. Reciprocating pumps. STEWARTS & LLOYDS OF SOUTH AFRICA, Ltd., and DAVIES, R. F. MAYOR-. March 25, 1943, No. 4841. [Class 102 (i)] In a single-acting reciprocating pump the cylinder is provided with a packing gland at distances from its inlet and delivery ends, which are greater than the stroke of the plunger. The cylinder may be made in one or more lengths 1, 2 with a non-return inlet valve 12. The plunger 13 is longer than its stroke, and has a non-return transfer valve 17 and one or more outlets 18. The plunger rod 15 may be operated by hand, a windmill, or other power unit. The packing may comprise a number of cup leathers 4, 5, some or all of which are directed towards the delivery end of the cylinder. The parts of the pump may be made of wood, glass, non-ferrous metals, stainless steel, or ferrous metals, which are enamelled or coated with rubber or synthetic resin on their inner and/or outer surfaces so as to prevent corrosion.
Patent GB-1372581-A (GB)
Title: Electric switches
IPC: H01H23/16
Filed: 1971-02-17
Abstract: 1372581 Mechanical switches JOSEPH LUCAS (INDUSTRIES) Ltd 24 Jan 1972 [17 Feb 1971] 4882/71 Heading H1N In an electric switch comprising a slidable carrier 22, Fig. 2, for a movable contact 24 engaging fixed contacts (34), Fig. 3 (not shown), on a board (30) held in position as by lugs 33, the carrier 22, Fig. 4, has a projection 29 on its slidable surface which is engageable with alternative sets of detents (27), (28), Fig. 7 (not shown), in a casing partition wall 16 of the switch to provide a switch with two or three detent positions as required. In the particular example the carrier 22 is actuated by a rocker 14 having pivots 15 and arms 19 engageable in alternative edge slots 26 of the carrier 22 which may be mounted with the projection 29 on either side of the centre line 22b whereby it engages the required set of detents. Alternative movable contacts 24 are described.
Patent GB-1124061-A (GB)
Title: Improvements relating to communication equipment
Inventor: UTTING PAUL
IPC: H04B10/112
Filed: 1965-02-04
Abstract: 1,124,061. Photo-electric communication apparatus. PLESSEY-U.K. Ltd. Jan. 31, 1966 [Feb. 4, 1965], No.4891/65. Heading G1A. [Also in Division G2] A communications apparatus includes sighting means (e.g. binoculars) having an optical system with associated selective radiation diverting means which extracts from or injects into the visible light beam received or transmitted by the optical system, non-visible intelligence, by providing a secondary focus at which intelligence receiving means or transmitting means may be located. A communications link may thus be provided between two operators viewing each other over a large distance through binoculars provided with transmitter and receiver means. In a prismatic binocular system, Fig. 1, the selective radiation diverting means is a dichroic coating 5 on the surface of the first prism which reflects any infrared radiation entering the system to a focus at 6, where an infrared detect- or may be located. Visible light passes through the system and can be viewed. An optical system including a receiver such as this, could form one side of the pair of binoculars, while the other side could be an optical system with a gallium arsenide lamp at position 6 to act as a transmitter of infrared light. In an alternative arrangement to enable the secondary focus to be provided outside the visible light path an inclined dichroic mirror (8), Fig. 2 (not shown) and, perhaps, further mirrors, are used. The invention is applicable to Galilean binoculars also, Fig. 3 (not shown). The gallium arsenide lamp may be modulated with a speech signal from a microphone and detected signals applied to headphones.
Patent GB-511569-A (GB)
Title: Improvements in automatic sprinkler heads
IPC: A62C37/10
Filed: 1938-02-17
Abstract: 511,569. Fire-extinguishing. LAPP, A., and LAPP, G. Feb. 17, 1938, No. 4961. Convention date, May 22, 1937. [Class 47 (ii)] In a sprinkler head operated by the combustion of a thread, the valve 21 is held closed by two bars 13, 13<1>, the adjacent ends of which loosely engage grooves in a lever 17. Pressure is applied to the valve by a cup 18 engaged by a screw 20. A spring 10 is held up by a combustible thread 8 which is in contact with a long combustible thread 28 terminating in a knot 29 which readily takes fire. When the thread 8 is burnt, the spring 10 strikes the lever 17 to collapse the strut 13, 13<1>. The thread 28 also releases a signal arm 30. The head casing is formed of four sections a, a<1>, b and c which are united by screws, so that the head can easily be dismantled when required. The section c is perforated to distribute the water.
Patent GB-860087-A (GB)
Title: Improvements in a device for wiping and washing windscreens
Inventor: KOFINK SIEGFRIED
IPC: B60S1/48
Filed: 1957-02-13
Abstract: 860,087. Windscreen wipers. SWF. SPEZIALFABRIK FUR AUTOZUBEHOR G. RAU G.m.b.H. Feb. 13, 1957, No. 5010/57. Class 138(l). A device for washing and wiping vehicle windscreens comprises a drive means for the wiper blade connected to a drive means for a water pump, the compression stroke for the pump being effected by a mechanical connection between the actuating rod of the pump and cam means mounted on the wiper drive, the suction stroke of the pump being effected by a spring. As shown a windscreen wiper mechanism 1 drives two wiper blades 5 and is mechanically connected to a water pump 2 which has a suction connection to a water container 3 and a discharge connection to spray nozzles 4. When an electric switch 7 has both pairs of contacts closed the drive motor and an electro magnet are energised and when only the upper pair, as shown, are connected the drive motor alone is energised. The electromagnet 31, Fig. 2, attracts a solenoid 37 connected to a link 26 pivoted on a bracket at 27. A second link pivoted intermediate its length to the link 26, has one end pivoted to a pump actuating rod and the other carries a cam follower ; actuation of the electromagnet brings the cam follower into contact with a cam 10 mounted on the drive motor and causes the discharge stroke of the pump the return stroke being performed by a spring 34. The cam may be in the form of a segment mounted on the wiper shaft, Fig. 4 (not shown), or on a rod operating the wiper shaft, Fig. 5 (not shown), and may act on the water pump through an electromagnet. A Bowden cable may be used in place of an electromagnet to bring the pump into operation.
Patent GB-1536363-A (GB)
Title: Gas compressors
IPC: F04D27/02
Filed: 1976-02-10
Abstract: So as to be able to recognise and avoid in time the imminent surging of a vane-type compressor (K), there is provided a surge sensor element (S) which has two input channels (aa, bb) and two output channels (cc, dd). The input channels are connected to two pressure pick-up points which record the static pressure (pso) and the overall pressure (pco) in the compressor, one of the output channels (cc) is connected to a pressure pick-up point on the vane and one (dd) to the control circuit (R) of the compressor. The flows (A,B) in the two inlet ducts meet, and the resulting flow is deflected by an edge, whose angle ( beta ) was defined accordingly, against the control circuit. Fluctuations in the pressure (pi) on the vane just before surging starts influence this deflection and thus the control circuit which then controls the compressor in such a way that surging is avoided. <IMAGE>
Patent GB-715502-A (GB)
Title: Improvements relating to apparatus for protecting polyphase alternating current electrical apparatus and particularly polyphase electric motors
Inventor: WALTON JAMES RIGNELL
IPC: H01H83/22
Filed: 1952-02-27
Abstract: 715,502. Automatic circuit breakers. ELECTRICAL APPARATUS CO., Ltd. Jan. 1, 1953 [Feb. 27, 1952], No. 5084/52. Class 38(5) In a polyphase overload and unbalance protective device having bimetallic strips heated by heaters energized by the respective phase currents, the heaters are arranged for replacement without interference to the strips or mechanical operating parts. Each bimetallic element 4 is housed in a chamber 5 in an insulating base 1 and is looped so as to closely surround the associated heater 11. Each heater is formed for connection to terminals 2, 3 and with a plate 15 to close the opening in a cover 10 through which the heater may be inserted. Each heater 11 may be formed from sheet metal, Fig. 4, of wire wound into a spiral. Fig. 6, or of wire wound on an insulating former, Fig. 7 (not shown). The bimetallic strips have no electrical or mechanical connection with the heaters and actuate mechanism similar to that described in Specification 553,154. The base 1 may be provided with transparent side plates, as 16.
Patent GB-122327-A (GB)
Title: A New or Improved Method of and Means for Localising Explosions in Mines.
Inventor: GRAHAM WILLIAM
IPC: E21F5/00
Filed: 1918-03-22
Abstract: 122,327. Graham, W. March 22, 1918. Explosions, minimizing in mines.-In order to localize the effects of explosions in mines, the mine is divided into a number of sections by means of screens, through which the inflammable gases pass, and in passing are extinguished. The screens a in the example shown are formed with double walls supporting a number of tubes B open at each end, the walls receiving the first effect of the explosion while the inflammable gases pass through the tubes and are extinguished by their own products of combustion. The walls are preferably built of sections having parallel vertical sides united by an horizontal web and having recesses therein for the reception of the pipes, which are provided with collars b. The screens are provided with similarly constructed doors d.
Patent GB-525310-A (GB)
Title: Improvements in or relating to the cooling of diesel-type engines and the supply of combustion air thereto
IPC: F02B9/00
Filed: 1939-02-17
Abstract: 525,310. Oil engines for vehicles DAIMLER-BENZ AKT.-GES. Feb. 17, 1939, No. 5319. Convention date, Feb. 26, 1938. [Class 7 (ii)] To ensure that a direct-injection oil engine for a vehicle (1) shall induce its maximum air charge and (2) shall be maintained at a higher temperature than a carburetter engine serving the same purpose, the engine is completely enclosed and the air supply is induced through a passage t located outside the hot engine enclosure. A water cooled engine is shown in the Figure and hinged ventilators n are located in front of a radiator e. In addition to regulating the temperature of the cooling water the ventilators, which are adjustable, are relied upon to maintain an appropriate temperature within the vehicle bonnet. Ventilators may be provided on the sides of the bonnet.
Patent GB-1216428-A (GB)
Title: Armored metal tools
Inventor: DAWSON CHESTER HOWARD
IPC: C22C19/07
Filed: 1969-01-31
Abstract: 1,216,428. Abrasive tools. REMINGTON ARMS CO. Inc. 31 Jan., 1969 [8 Feb., 1968], No. 5335/69. Heading B3D. An abrasive tool, such as a band saw, file, rasp, disc and the like comprises a base metal, at least a portion of which is coated with a relatively thin layer of matrix metal fusion bonded to the base metal and alloyed therewith throughout an interlayer therebetween, the matrix metal layer being overcoated with hard high melting abrasive particles partially embedded in the matrix metal and projecting therefrom and forming a myriad of sharp cutting and abrading edges. As described, the tool comprises a band saw which is formed from a strip of heat treatable alloy steel. One edge of the strip may be punched with arcuate or elongated gullets and wire brushed and grit blasted to remove burrs. The strip is then fed from a reel 50 through a guide 51 to a unit 52 which applies a mixture of paste flux and brazing metal powder to the upper edge of the strip. The paste flux may be boride-fluoride and the brazing metal a nickel-base or cobalt-base alloy or an alloy of cobalt, chromium and tungsten. The coated strip is then fed past a vibrator 57 which feeds diamond substitute particles, such as tungsten-carbide particles over an edge 56 so as to fall on the strip. The particles consist of borides, nitrides, silicides or mixtures thereof. Thereafter the strip passes an inspection station 59, a wiper assembly 62, air blast unit 70 for removing loose particles, and a unit 73 which pulls the strip from the reel 50. From the unit 73 the strip passes through an infra-red heating unit, a tensioning unit 82, an exhaust blower 83 which prevents accumulation of a conductive atmosphere, into an induction heating coil 86 which heats the strip to 1900 to 2000 F. to fuse the brazing metal with the strip and to austenitize the alloy of the strip. The strip then passes into a housing 87 containing a chill plate, which transfers the strip into a fully martensitic structure, and then to a tempering chamber 107. Finally the strip passes through strengthening rolls 108, a drive unit 109 and under a counter 110 on to a take-up reel 112. In an alternative arrangement, the paste flux and brazing metal powder are supplied from separate vibratory feeders. The magnetic effect of the induction heating is stated as having the effect of causing the abrasive particles to project from the brazing metal. The abrasive coating may be continuous along the edge of a strip formed without gullets or may be at spaced points, the coating being applied continuously and blown-off at spaced intervals by pulsating air jets. The abrasive particles project by about <SP>1</SP>/ 3  to <SP>1</SP>/ 2  of their average transverse dimension from the metal matrix which has a thickness varying from about 0À002 to 0À01 inch.
Patent GB-780000-A (GB)
Title: Improvements in or relating to roll-film photographic cameras
IPC: G03B19/04
Filed: 1955-06-03
Abstract: 780,000. Photographic roll-film cameras. KAMERABAU-ANSTALT. June 3, 1955 [May 6, 1955], No. 5462/57. Divided out of 779,999. Class 98(1) A roll-film photographic camera has a shutter-winding mechanism and a filmfeed mechanism which may be selectively coupled by an operating member, and a locking device which prevents movement of the shutter-winding mechanism when the film-feed mechanism is uncoupled after an incomplete feed movement of the operating member. As shown, the winding knob 1 is fast with a rotatable body 1<SP>1</SP> rotatably mounted on a shaft 2. The knob 1 and the body 1<SP>1</SP> are movable axially between two positions defined by a spring pressed ball 10 which engages one of two grooves 11, 12. In the lower position shown, rotation of the knob 1 is transmitted to the shaft 2 by a pin 5 which engages a bore in disc 3 fast with the shaft 2, said pin 5 also engaging a bore in a gear 6 which actuates the film feed sprocket. The shaft 2 is connected to the shutter winding mechanism directly, and to a film takeup spool through a slipping clutch. In its other position, knob 1 is connected only to disc 3, so that rotation of knob 1 sets the shutter without winding the film.. Means similar to those described in Specification 779,999 may lock the film winding mechanism meanwhile. A U-shaped locking spring 15 fits in a slot in a cylindrical sleeve 19, and if knob 1 is in its correct position when it is moved upwardly, a pin 13 mounted in the body 1<SP>1</SP> engages a lug 16 on the spring 15 so that it is lifted out of engagement with ratchet teeth 18 on the body 1<SP>1</SP>. If, however, the knob 1 is raised in any other position, the pin 13 will not engage the lug 16, and the ratchet teeth 18 will be engaged by the leading edge of the spring 15, thereby preventing movement of the knob. When the knob 1 is moved into its lower position again, the spring 15 is pushed down by a shoulder 1<SP>11</SP> on the body 1<SP>1</SP>.
Patent GB-755869-A (GB)
Title: Mitten
IPC: A41D13/08
Filed: 1954-02-24
Abstract: 755,869. Mittens. DENT, ALLCROFT & CO., Ltd., and PINCOTT [nee GRATER], E. W. Jan. 24, 1955 [Feb. 24, 1954], No. 5487/54. Class 141. A mitten, especially for evening wear, comprises a sleeve portion 1, Fig. 1, with an extension 3 at one end, terminating in a loop 4 of elastic material. In use, the extension 3 is pulled across the back of the wearer's hand, and the loop 4 is engaged over a finger. The shape of the extension piece 3 can be varied and it can be provided with more than one fingerengaging loop 4.
Patent GB-221431-A (GB)
Title: Starting devices for electric motors
IPC: H02P1/04
Filed: 1924-03-04
Abstract: 221,431. Fairweather, W., (Singer Manufacturing Co.). March 4, 1924. Controllers of the change-over type for starting induction motors by two ring-like contact members 6, 18 which respectively make the starting and running connections are carried on a spindle 2 and are simultaneously brought to the folly-closed position by turning a handle 3 clockwise. The member 6 is fast on the spindle 2, the member 18 being attached to a loose collar and pushed by an arm 8. In the fully-closed position an electromagnet 29 attracts and retains an armature 20 integral with the loose-sleeve contact, and, on release of the handle, the spindle contact is returned by a spring 13, thus breaking the starting connection. The spindle is self-locked in the returned position. The sleeve contact remains on until voltage fails in the magnet 29 or until a forcible push-off is imparted by a plunger 39. Return of the sleeve contact under the action of a spring 22 unlocks the spindle 2.