baber/WOPTO huggingface dataset:
Patent GB-925137-A (GB)
Title: Improvements in or relating to gate valves
IPC: F16K3/28
Filed: 1962-02-27
Abstract: 925,137. Valves. W. BECKER, [trading as EISENWERK RODINGHAUSEN]. Feb. 27, 1962 [Feb. 27, 1961], No. 7717/62. Class 135. A gate valve comprises a body 1 having a lateral extension 2 housing a gate member 3, and a layer of sealing material 4 surrounding the edge of the gate member and connecting with a upper resilient portion 6 arranged to be compressed against the wall of the extension 2, the body being free of guiding ribs or grooves so as to provide a straight through bore, and the gate being provided with guiding ribs 8. The gate is made in two parts 11, 12 secured together so as to provide a groove 13 in which the resilient sealing material 4 is located, the portion 6 being provided with an opening 14 for the actuating spindle 5. A compression member 18 forces the portion 6 into contact with the walls of the extension and claws 16, formed on each part 11, 12 of the gate engage with the latter member. The sealing member may be reinforced with a metal strip 9.
Patent GB-126456-A (GB)
Title: Improvements in the Construction of Propellers.
Inventor: HANCOCK THOMAS
IPC: B21D53/78
Filed: 1918-05-08
Abstract: 126,456. Hancock, T. May 8, 1918. Screw propellers.-A sheet - metal propeller intended particularly for aircraft is made of two stampings 2<1>, which are welded together at their edges, each stamping forming a half of the blades and a half of the boss 1 of the propeller. The stampings may be secured in position during welding by means of lugs formed on their edges, the lugs being afterwards removed. The propeller is strengthened by dished frame members 4<1>, which are secured to the stampings at their edges by brazing or riveting and at their edges by welding. Plates 5 fixed to the faces of the boss are bored to receive the ends of tubular distancepieces in the boss. A flanged sleeve fitted inside the boss may be used in place of the plates and distances-pieces.
Patent GB-894691-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D7/10
Filed: 1960-03-04
Abstract: 894,691. Baffles. FUCHS, G. March 4, 1960 [March 6, 1959], No. 7744/60. Class 126 [Also in Group XIII] A boiler or steam generator has a system of flues 13 formed by joining a number of elongated sections S (see Group XIII) arranged around a baffle 7 at their bottoms.
Patent GB-537767-A (GB)
Title: Improvements in or relating to work holding tools, wrenches, and the like
IPC: B25B13/50
Filed: 1940-04-30
Abstract: 537,767. Wrenches. STEELE, G. A. April 30, 1940, No. 7746. [Class 61 (iii)] A pivoted jaw wrench comprises a head 2 pivoted at 8 near the gripping jaw 3 of the lever arm 1 and an adjustable jaw 5 the shank of which is of T cross section having the flange portion 5b located and guided against tilting movement in the space between inner and outer U- section members 2a, 2b constituting the head, the jaw 5 terminating in a threaded shank 5a engaging the adjusting nut 6. Specification 464,738 is referred to.
Patent GB-325137-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D1/06
Filed: 1929-03-09
Abstract: 325,137. Holden & Brooke, Ltd., and Brooke, B. W. March 9, 1929. Multi - stage centrifugal pumps; casing.-In a two-stage centrifugal pump the delivery passage 7, 8 from the first stage crosses the planes of the impellers obliquely and the fluid being pumped enters the second stage from the further side. A diaphragm 3 separating the stages is clamped between the two parts 1, 2 of the casing and carries a centre bearing 15 which is water lubricated.
Patent GB-1171092-A (GB)
Title: Magnetic Ore Processing.
IPC: B03C1/10
Filed: 1968-02-16
Abstract: 1,171,092. Magnetic ore processing. AEROFALL MILLS Ltd. 16 Feb., 1968 [1 March, 1967], No. 7821/68. Heading B2J. A magnetic ore processing plant comprises a faster rotary magnetic separator 26 and a slower rotary magnetic separator 32 in series relationship so as to yield an ore concentrate tailings and a middlings product, a sensor 44 for sensing the quantity of ore concentrate separated out by the separator 26 and speed control means 48 responsive to the sensor for adjusting the speed of rotation of the motor 28 of the separator 26 so as to regulate the the quantity of ore separated. A sensor 52 is provided for sensing the proportion of magnetic material separated out by the slower separator 32 and speed control means 50 is provided for adjusting the speed of rotation of the motor 33 of the slower separator 32 so as to regulate the proportion of magnetic material separated out by the slower separator. Each separator comprises a cylindrical drum which is rotated about a stationary grouping of magnets the magnetically susceptible particles adhering to the drum until they pass out of the field of the magnets when they fall into the trough 34 or 40, the remainder of the material being flung off the drum into trough 30 or 38.
Patent GB-177511-A (GB)
Title: Improvements in justifying spacers or spacebands for use in typographical composing machines
IPC: B41B11/00
Filed: 1922-03-17
Abstract: 177,511. Mergenthaler Linotype Co., (Assignees of Beck, J. H.). March 28, 1921, [Convention date]. Spacers. - To facilitate the manufacture of double-wedge spacers and to diminish their liability to damage, the movable member B, Fig. 2, of the spacer is provided with two or more longitudinal slots B<1> so as to form two marginal bars B<2> and one or more intermediate bars B<3>. In the form described, a single intermediate bar B<3> is provided with bevelled edges which co-operate with a pair of bevelled guides A<2>. Fig. 5, on the stationary member A of the spacer the guides A<2> being out of contact with the marginal bars B<2>. A relatively long narrow bearing is thus afforded for the sliding parts. and the movable member Bis stronger than heretofore.
Patent GB-1437159-A (GB)
IPC: B65D17/40
Filed: 1974-02-21
Abstract: 1437159 Easy-open container ends AMERICAN CAN CO 21 Feb 1974 [19 Sept 1973] 7898/74 Addition to 1437158 Heading B8D In a modification of the easy-open container end of the parent Specification 1,437,158, the protective compound 46 for shielding the sharp edges on rupturing the scoreline 14 comprises a mixture of vinyl chloride polymer and elastomeric polymer. The vinyl chloride polymer is derived from vinyl chloride or mixtures thereof with at least one of vinyl acetate, vinylidene chloride and vinyl alcohol, specific examples of mixtures and proportions being given.
Patent GB-729556-A (GB)
Title: Electrostatic transducers
IPC: H04R19/04
Filed: 1952-03-27
Abstract: 729,556. Sound receiving or transmitting devices; stethoscopes; loud-speakers. INTERNATIONAL PATENTS TRUST, Ltd. March 27, 1952 [March 27, 1951; May 30, 1951; Jan. 7, 1952], No. 7923/52. Class 40 (4). [Also in Groups VI and XXXVIII] In a mechanico-electric transducer, the transducing element which is a condenser comprises interleaved conducting and insulating elements loosely wound to form a convolute unit which in response to variations of external pressure produces proportionate changes of capacitance. Conducting strips 11, 12, Fig. 1, interleaved with dielectric strips 13, 14, which may be of paper or polystyrene, are wound to form a flat but resilient convolute condenser. Air may be trapped between the layers to give added resilience and a coating of finely divided powder such as talcum applied to prevent sticking between adjacent layers. A condenser in which the strips are corrugated to give added resilience is described with reference to Fig. 19 (not shown). Application of the invention to the measurement of physiological pressure waves in the human body is described with reference to Figs. 3-7, 22 and 23 (not shown) and further applications, using a plurality of elements or a pair of elements in push-pull relationship, include gramophone pick-ups, receivers, loud-speakers, and subaqueous signalling devices. The examples include arrangements wherein the element is operated by tension and compression and also mountings wherein the element is subject to torsional oscillation. Means for calibrating the physiological instruments by known pressures produced mechanically or by a second transducer are described with reference to Figs. 5, 6 and 23 (not shown) and amplifier arrangements designed to enhance specific frequencies in connection with physiological measurements are also described.
Patent GB-416502-A (GB)
Title: Improvements in or relating to the manufacture of naphthoyl benzoic acid derivatives
IPC: C07C205/61
Filed: 1933-03-16
Abstract: Halogenated a -naphthoyl-o-benzoic acids containing the halogen in the 5<1>- or both the 5<1>- and 8<1>-positions of the naphthalene ring are produced by direct halogenation of a -naphthoyl-o-benzoic acid preferably dissolved in acetic acid. Other solvents and halogenating agents such as thionyl chloride may be used, but sulphuric acid, if used, tends to give the dihalogen derivative directly.  The 5<1>-halogeno-1<1>-naphthoyl-2-benzoic acid produced may be nitrated to give the 5<1>-halogeno-8<1>-nitro- or the 5<1>-8<1>-dinitro-1<1>-naphthoyl-2-benzoic acid.  In examples, (1) a -naphthoyl-o-benzoic acid is brominated in the presence of glacial acetic acid to give the 5<1>-bromo derivative.  By fusion with caustic alkali, the product yields 5-hydroxy-1-naphthoic acid or when cyclised with concentrated sulphuric acid in the presence or absence of boric acid it yields a a b z - monobromobenzanthraquinone.  (2) a - Naphthoyl-o-benzoic acid is dibrominated in the presence of ferric chloride and iron powder to give the 5<1>-8<1>-dibromo derivative which when cyclised with concentrated sulphuric acid in the presence or absence of boric acid yield a dibromobenzanthraquinone.  (3) a -Naphthoyl-o-benzoic acid is brominated in the presence of ferric chloride to give a product identical with that of example 2.  (4) a -Naphthoyl-o-benzoic acid is chlorinated in the presence of glacial acetic acid to yield 5<1>-chloro-1<1>-naphthoyl-2-benzoic acid.  A b z-chloro-benzanthraquinone compound is obtained by cyclisation with sulphuric acid in the presence or absence of boric acid.  (5) a -Naphthoyl-o-benzoic acid is chlorinated in the presence of sulphuric acid to obtain 5<1>-8<1>-dichloro-1<1>-naphthoyl-2-benzoic which may then be cyclised by means of sulphuric acid and benzoic acid to a mixture of two dichlorobenzanthrones which may be separated by fractional crystallisation.  (6) 5<1> - bromo - 1<1> - naphthoyl - 2 - benzoic acid is dissolved in sulphuric acid and nitrated with a mixture of nitric and sulphuric acids to give the 8<1>-nitro compound.  The nitro-compound may be reduced with iron and acid to give a pyrrole.  (7) 5<1>-Chloro-1<1>-naphthoyl-2-benzoic is similarly nitrated to the 8<1>-nitro compound.  (8) A solution of 5<1>-bromo-1<1>-naphthoyl-2-benzoic acid in acetic anhydride is treated with nitric acid to obtain the 5<1>-8<1>-dinitro compound. The acids may, in all cases, be neutralised with caustic soda to give the sodium salt.
Patent GB-899177-A (GB)
Title: A high-voltage glass-blast circuit-breaker
IPC: H01H33/76
Filed: 1959-03-09
Abstract: 899,177. Gas-blast switches. LICENTIA PATENT-VERWALTUNGS G.m.b.H. March 9, 1959 [March 10, 1958], No. 8056/59. Class 38 (5).  A gas-blast circuit-breaker comprises an arcquenching chamber 1 of slot-like cross-section in which fixed and rectilinearly-movable contacts 2, 3 are arranged so that the arc 5 heats the air in space 4 to produce an upward arcextinguishing blast past the arcing contacts 6 and insulating members 7. In a modification, Fig. 2 (not shown), an additional air compartment is formed beneath the lower end of the quenching chamber and is connected thereto by a narrow passage containing barriers which further restrict its size. Figs. 3 and 4 show a breaker having a pivoted contact 3, an additional compartment 4, a cooler 11, partitions 12 and a filter 14 consisting of a fine fabric of wire or textiles. This filter may be replaced by a restricted passage 15, Fig. 5, in which the chamber walls are covered by a gas-evolving material 16, and the action of a soot arrester 17 is improved by a liquid 18 such as water. The surface leakage path between the contacts of the breaker shown in Fig. 1 is increased by a number of deep grooves formed in the walls of the quenching chamber, Figs. 6 and 7 (not shown). In another modification Fig. 8 (not shown), the width of the pivoted contact is made equal to that of the quenching chamber, whose walls have recesses to increase the air flow past the movable contact when it is opened. To avoid the need for recesses, the moving contact may comprise a two-armed lever pivoted in the centre of the chamber, each arm cooperating with a fixed contact, Fig. 9 (not shown).
Patent GB-1150125-A (GB)
Title: Oral Muscular Controlled Electronic Actuating Means
Inventor: MITCHELL JOSEPH CHARLES VICTOR
IPC: A61F4/00
Filed: 1967-02-21
Abstract: 1,150,125. Electric correspondence control systems. J.C.V. MITCHELL. Feb.21, 1968 [Feb.21, 1967], No.8098/67. Heading G1N. [Also in Division H4] A remote control system comprises a pressuresensitive device which is detachably mounted on a tooth so that pressure may be applied by the upper and lower jaws of the operator to provide an electrical signal to control the transmission from a radio transmitter, the transmitter, transducer and a power source being mounted within the device. A prod may be attached to an opposing tooth to co-operate with the pressure-sensitive device. The transducer may be a bridge circuit Fig. 3 (not shown) whose output is supplied via a differential amplifier to control the mark-space ratio of a multi-vibrator modulating a radio transmitter in accordance with the degree of unbalance. The circuitry, with the exception of the inductors in the transmitter is in integrated form.
Patent GB-259469-A (GB)
Title: Improvements in or relating to thermostatic control for water heating systems
IPC: G05D23/12
Filed: 1926-03-25
Abstract: 259,469. Spencer Thermostat Co., and Spencer, J. A. March 25, 1926. Thermally-actuated valves. -A safety valve for water heating systems is operated thermostatically by a bimetallic cupped disc 6 loosely held between the two parts 1, 2 of the casing, and carrying a valve member 9 co-operating with an adjustable seating 12. The cupped disc is adapted to cause the valve to close abruptly at a predetermined temperature, e.g. 200‹ F. and to open abruptly at a lower temperature, e.g., 160‹ F. The water pressure assists in closing the valve.
Patent GB-231517-A (GB)
Title: Improvements in electric motor starters
IPC: H02P1/26
Filed: 1925-03-27
Abstract: 231,517. Alos Apparatebau Ges., (Assignees of Ley, C.). March 27, 1924, [Convention date]. Controllers handles and sliders for. - In a motor starter an insulating disc 8 is interposed between the handle 5 and the movable contact carrying arms 12 and the fixed contacts 1 on the base 2, there being no screw or like connections between the various parts so that, on the pin 17 for instance, being removed, the starter can be disassembled. The boss 6 of the handle has a squared end engaging a corresponding recess in a cap 11 pressed against it normally by a spring 16 and having gaps 10 engaged by coupling pins 9 on the dise 8, which itself is perforated at 15 to receive pius connected to the three-legged spider 12 carrying the movable contacts 14. The fixed contacts @ may be in three series, with other fixed contacts such as 21, in the gaps between them, which, in the example shown, can contact with extra movable contacts 19 mounted on the disc 8 and connected together by a copper bar 20 to allow the switching in of an auxiliary phase.
Patent GB-512838-A (GB)
Title: Improvements in or relating to vibration dampers
IPC: F16F15/14
Filed: 1938-03-17
Abstract: 512,838. Balancing engines. BRANDENBURGISCHE MOTORENWERKE GES. March 17, 1938, No. 8299. Convention date, March 20, 1937. [Class 122 (iii)] [Also in Group XXXII] An arrangement for damping the vibration of a rotating body due to the rotation and to bending along the ,axis of rotation thereof comprises at least one mass rotating with the body and pendulously supported thereon by means of at.lea'st one ball bearing element so as to be capable of simultaneous oscillation in the plane of rotation of the body and in a plane parallel to the longitudinal plane of the axis of rotation. As shown, applied to a crankshaft, the weights 2, 3 are bolted together and are suspended in the web 1 by plates 5 recessed to receive three balls-4, the radii of the recesses being larger than that of the balls so that the weights may move laterally as well as in the -direction of rotation. The lower and upper plates 5 are 'secured to the web and weights respectively. The Specification as open to inspection under Sect. 91 includes a modification in which the damping mass may be a ball 8, Fig. 5 (Cancelled), placed in a cage formed with a ball dish 7 and inserted in the balance weight. This subject-matter does not appear in the Specification as accepted.
Patent GB-1253872-A (GB)
Title: Polymerization of ethylene using supported activated chromyl chloride catalysts
IPC: C08F4/78
Filed: 1969-02-14
Abstract: 1,253,872. Polymerization of ethylene. UNION CARBIDE CORP. 14 Feb., 1969 [14 Feb., 1968], No. 8309/69. Heading C3P. Ethylene is polymerized to form either polyethylene or interpolymers of ethylene and other a-olefins or diolefins, e.g. propylene, by contacting the monomer(s) at a temperature and pressure sufficient to initiate the polymerization reaction (preferably 30-200 C. and 20-800 p.s.i.g.) with a catalytic amount of the reaction product of (a) chromyl chloride adsorbed on an insoluble, inorganic support having a high surface area, e.g. silica, alumina, or a silicaalumina mixture having a surface area of 50- 1000 square meters per gram and (b) an organoaluminium reducing compound having at least one hydrocarbon group and at least one oxyhydrocarbyl group attached to the Al atom, in an amount sufficient to reduce at least a portion of the Cr to a + 2 valence state. The preferred organoaluminium compounds have the formula R x Al(OR)y, wherein x and y are 1 or 2 and together equal 3 and R is a C 1-14  hydrocarbon group. A promoter of the formula R y MeX z , wherein R is C 1-14  hydrocarbon, Me is an amphoteric metal, e.g. Al or Zn, X is halogen or hydrogen, y is 2 or 3 and z is 0 or 1, the sum of y and z being equal to the valence of the metal Me may be added to the catalyst.
Patent GB-1113766-A (GB)
Title: Energy source apparatus
IPC: G21K5/02
Filed: 1966-01-25
Abstract: 1,113,766. Container and support for a radiation source. ATOMIC ENERGY OF CANADA Ltd. COMMERCIAL PRODUCTS. 25 Jan., 1966 [1 Feb., 1965], No. 8313/67. Divided out of 1,113,765. Heading H5R. A radioactive source assembly includes a frame, a series of radio-active pencils mounted in the frame, means for moving the frame and pencils between an irradiating position and a storage position and track means for guiding the frame between these two positions, the track means being shaped so as to cause the frame to assume an annular form at the irradiating position to provide an annular source, and so as to cause the frame to assume a planar form during movement from the irradiating to the storage position. Preferably the planar form of the source is maintained during storage, and the source is positioned during storage so that its plane is vertical. As shown in Fig. 8 the preferred frame comprises a ladder-like array of members 95 which ladder flexes by pivoting about all but the terminal rungs. Between each pair of the rungs ;and pivoting on one rung of each pair is an open frame comprising three channel members 100, 101, 102, members 101, 102 being single channel, and member 100 two channels, one co-operating with each of 101 and 102. On pivoting the sub-frame from between the rungs, radio-active needles 74 may be placed in the channels, the sub-frame put back into place between the rungs and locked into position by means of fastening members 96. When replaced the sub-frame spans the distance between the rungs, and the next rung prevents the radio-needles falling out of the channels. Wheels 98 on the side members 75 run on the guide rails when the source is being moved from storage position, e.g. a water tank, to irradiation position. At the irradiating position, as shown in Fig. 7, the side rails are curved so that the side members 75 define the circular ends of a cylinder and the pencils 74 lie in the surface of this cylinder.
Patent GB-751134-A (GB)
Title: Apparatus for the manufacture of a uniform mat of fibres
IPC: D04H1/736
Filed: 1954-03-22
Abstract: 751,134. Forming fibre laps. HOGANASBILLESHOLMS AKTIEBOLAG. March 22, 1954 [March 31, 1953], No. 8322/54. Class 120 (1). In apparatus for forming a mat of fibres, the fibres are discharged in an air stream from a machine 2 into a chamber 6 and are traversed across a rotary suction drum 14 by an oscillating vane 8. The fibres are deposited by drum 14 in lap form on to a conveyer belt 20 forming the bottom of chamber 6 or on to a second lap previously formed on such belt.
Patent GB-409880-A (GB)
Title: Toy machine gun
IPC: A63H5/04
Filed: 1933-03-20
Abstract: 409,880. Spark-producing toy machine gun. ARNOLD, C., 47, Deutschherrnstrasse, Nuremberg, Germany. March 20, 1933, No. 8393. [Class 132 (iii).] A toy machine gun has devices for producing sparks and for producing noises imitating the machine gun rattle. The toy machine gun a has an axle b bent to form a crank which rotates a toothed wheel d rotating through transmission gear wheels f a friction wheel g with which engages a cerium stone carried by a lever h pivotally mounted in the barrel of the machine gun to produce a stream of sparks issuing from the barrel. Noises imitating the machine gun rattle are produced by lateral projections c on the rotated wheel d intermittently engaging a blade spring i fixed on the frame of the machine gun.
Patent GB-1240098-A (GB)
Title: A marking device for use on a pressurized dispenser
IPC: B05B15/04
Filed: 1970-02-20
Abstract: 1240098 Marking device PRECISION VALVE CORP 20 Feb 1970 [24 Feb 1969] 8397/70 Headings F1R R3AD2 and R3A3D9 [Also in Division B6] A marking device comprises a marking member having a surface for contacting a target, one or more grooves in the said surface, said grooves communicating with a marking material inlet passage provided in said marking member. As shown in Fig. 2 a reversible marking device 18 is in the form of a cylinder having a central bore 31 and radial grooves 38, 42 on its end-faces. Central bore 31 is used to attach the device 18 to the valve stem of an aerosol container. Fig. 3 shows the device in use.
Patent GB-1021403-A (GB)
Title: Novel antibiotics and processes for their manufacture
IPC: A61K36/06
Filed: 1962-10-16
Abstract: Antibiotic SP-30 is produced by incubating a micro-organism of the species Micromonospora halophytica n.sp., particularly M. halophytica NRLL 2998, or an SP-30-producing mutant or variant thereof until a compound having substantial antibiotic activity is produced, and isolating an antibiotic compound thus produced. The antibiotic may be extracted from the culture broth by extraction with a water-immiscible solvent such as ethyl acetate, and then isolated by adsorption, partition, fractional precipitation or a combination of these methods. SP-30 may be resolved into four components, designated SP-30 A, SP-30 B, SP-30 C and SP-30 D by column chromatographic separation utilizing a purified diatomaceous earth.  All these components are soluble in most organic solvents with minimal solubility in water, and possess a broad range of activity against gram-positive organisms. The Specification includes drawings of the infra-red spectra of SP-30 and of its single components and gives details of the infra-red absorption peaks and band characteristics as well as of the inflection points and maxima on the ultra-violet absorption curves.ALSO:Pharmaceutical compositions suitable for injection, as an ointment or for use as ophthalmic drops contain an antibiotic SP-30 (see Division C2).  The ophthalmic drops also contain phenylethyl alcohol.