baber/WOPTO huggingface dataset:
Patent GB-123363-A (GB)
Title: Improvements in, and relating to, the Haulage of Limbered Vehicles, for Civil and Military Purposes.
Inventor: BRIGG THOMAS HARGREAVES
IPC: B62C5/00
Filed: 1918-01-21
Abstract: 123,363. Brigg, T. H. Jan. 21, 1918. Ammunition wagons and limbers; field carriages.-The draught animals or mechanical tractors of a limbered vehicle such as a gun carriage or service wagon of the type shown are connected to a hook F depending from the perch or equivalent lever carried by the rear portion of the vehicle so that a downward pressure component transmitted through the pole to the animal or tractor automatically increases as the tractive effort increases. Normally the loads on the two portions of the vehicle are so arranged that there is an upward pressure on the animal or tractor when at rest and during easy draught. The usual draught-bar D has a triangular rear extension for engaging the hook F, and, when the front portion is used alone as a two-wheeled cart, this extension is secured to a hook E. When used with a mechanical tractor, an arm equivalent to the pole is provided to transmit the vertical forces to the tractor. According to the Provisional Specification the spade of a gun may be formed to serve as the hook F in the case of a limbered gun.
Patent GB-321882-A (GB)
Title: Improvements in the manufacture and production of treads for tyres
IPC: B60C1/00
Filed: 1928-08-30
Abstract: 321,882. I. G. Farbenindustrie Akt.- Ges. Aug. 30, 1928. Divided on and addition to 299,037. Synthetic rubber, vulcanizing.-The plastic products obtained by polymerizing butadiene, described in the parent Specification for making tyres, is used for making the treads only. Specification 23648/12 is referred to.
Patent GB-475459-A (GB)
Title: Improvements in and relating to devices for protecting rectifiers containing an ionised gas
IPC: H02H7/127
Filed: 1937-01-15
Abstract: 475,459. Converting. SOC. ANON. HEWITTIC, and DEMONTVIGNIER, M. Jan. 15, 1937, No. 1222. Convention date, Jan. 25, 1936. [Class 38 (ii)] In a mercury-vapour rectifier installation, grids associated with the main anodes 5 are normally maintained positive by a D.C. source 10 opposed to the voltage drop across a resistance 12 which is normally maintained smaller than the voltage of the source 10 by reason of a series resistance 11 associated with the negative biassing source 9. Under fault conditions producing excess current on the A.C. side 1, an auxiliary anode 16 in the rectifier is rendered conductive, thus short-circuiting the resistance 11 and thereby increasing the drop across the resistance 12 to a value which exceeds the voltage of the source 10 and thus renders the main grids negative to effect suppression of the discharge. Control of the auxiliary anode 16 is effected by a grid energized by the difference between a D.C. voltage proportional to the load current derived from current transformers 2 through rectifiers 13 and the voltage drop across a part of the resistance 12. In a modification, Fig. 2 (not shown), the rectifier to be protected has its grids continuously subjected to a negative bias potential upon which positive ignition impulses of adjustable phase are normally superposed. These impulses are generated under the control of an auxiliary rectifier to the grids of which blocking potentials are applied under fault conditions producing excess current in the main rectifier by means of an auxiliary anode and resistance arrangement similar to that described with reference to Fig. 1.
Patent GB-879844-A (GB)
Title: Method of and apparatus for heat-treating products in containers
IPC: A23L3/06
Filed: 1960-01-13
Abstract: 879,844. Heat-treating foodstuffs in containers. FOOD MACHINERY & CHEMICAL CORPORATION. Jan. 13, 1960 [April 20, 1959], No. 1240/60. Class 49. Foodstuffs sealedin containers, e.g. cans of milk, are gradually heated up to sterilization temperatures before actual sterilization by passing the containers through a confined liquid medium upon which is maintained a predetermined pressure of non-condensable gas, e.g. air, a temperature gradient being maintained in the liquid medium which increases in the direction in which the containers pass through it, and which preferably extends from a temperature which is initially below, to a temperature which is above the boiling point of the liquid at atmospheric pressure, e.g. in the case of water, from 140‹ F. to 240‹ F. In the apparatus described, the containers are passed through a pressure-retaining feed valve 9 into a cylindrical pressure vessel wherein they are moved along a helical course, formed by a T-iron track 19 on the wall of the vessel, by bars 16 attached to wheels 13 on a shaft 14. The containers leave the vessel through a pressure-retaining valve 11. The vessel is divided into zones 26 . . . 30 by baffles 21 . . . 24 attached to the bars 16 and a trough 7 in the vessel is similarly divided into zones. The vessel is filled to a level 33 with water which is heated by steam supplied from a boiler 37 to jets 34, 38 in the trough and main vessel respectively. The steam supplied to the jets 34 is regulated by temperature-control devices 36 which maintain the temperature in the zones at the desired levels. Compressed air is fed into the vessel through a conduit 42 and is maintained at a constant pressure to allow a water temperature of 240‹ F. in compartment 30.
Patent GB-605714-A (GB)
Title: Process for the manufacture of a coffee substitute from cereal bran
IPC: A23F5/44
Filed: 1945-05-17
Abstract: A coffee substitute is made by roasting a cereal bran or a mixture of cereal bran and coffee, in a closed roaster from which air is excluded, the mass being continuously agitated and displaced from the inlet to the outlet of the roaster during treatment.  The steam escaping from the bran is retained in the roaster, which may be a vertical one.  The product may be cooled after roasting.  The bran may be separated from the coffee after treatment and sold separately or both may be ground together.  The Specification as open to inspection under Sect. 91 refers to a roaster in the form of a ball rotated at 15 to 20 r.p.m. and provided with internal baffle plates acting as agitators.  A product comprising 70 per cent wheat bran, 10 per cent chicory, and 20 per cent coffee is referred to.  This subject-matter does not appear in the Specification as accepted.ALSO:A coffee substitute is made by roasting a cereal bran or a mixture of cereal bran and coffee, in a closed roaster from which air is excluded, the mass being continuously agitated and displaced from the inlet to the outlet of the roaster during treatment.  The steam escaping from the bran is retained in the roaster, which may be a vertical one.  The product may be cooled after roasting.  The bran may be separated from the coffee after treatment and sold separately or both may be ground together.  The Specification as open to inspection under Sect. 91 refers to a roaster in the form of a ball rotated at 15 to 20 r.p.m. and provided with internal baffle plates acting as agitators.  A product comprising 70 per cent wheat bran, 10 per cent chicory, and 20 per cent coffee is referred to.  This subject-matter does not appear in the Specification as accepted.
Patent GB-813693-A (GB)
Title: Improvements in or relating to printed electric circuits
IPC: H05K3/18
Filed: 1956-01-13
Abstract: Selected parts of the metallic pattern of a printed base are plated by immersing the printed base in an electro-less plating bath which does not, in the absence of a catalyst, result in any plating, and then touching the selected parts with a metal catalyst to cause plating to commence (and continue) only on the selected parts.  The printed base may consist of a phenolic resin board carrying a plurality of copper conductors, the plating bath may be composed of nickel chloride, sodium hypophosphite and sodium citrate, or sodium acetate, and the catalyst may be an aluminium, nickel or iron wire. Alternatively, the baths disclosed in U.S.A.  Specification 2,532,283 may be used for plating nickel on to platinum or silver.  The nickel-plated conductors may be coated with another metal by electro-plating or electro-less plating.
Patent GB-848437-A (GB)
Title: Improvements in sound apparatus for the extraction of dust and dirt from gases or liquids
IPC: B01D49/00
Filed: 1958-01-15
Abstract: 848,437. Silencing gaseous currents. JOHN, R. Jan. 15, 1958 [April 1, 1957], No. 1414/58. Class 7(2). [Also in Group XXVIII] Sound-reflecting walls 1, 2, confining the sound of a sonic emitter B precipitating dust from a passing gas or liquid, comprise a grid of circular or square section tubes whose perimeter is less than, e.g. 0.248 of, the sound wavelength and whose length is equal to a quarter-wavelength or multiple thereof. The tubes may be partly closed at one or both ends.
Patent GB-122687-A (GB)
Title: Improvements in or connected with Ships' Boats Launching Tackle or Gear.
Inventor: BULMAN WILLIAM
IPC: B63B23/18
Filed: 1918-01-28
Abstract: 122,687. Bulman, W., Smith, F. W., and Jones, W. Jan. 28, 1918. Pulley-tackle.-To prevent the falls of a boatlowering gear from twisting, the pulley-blocks at each end of the boat are fitted with plates or bridles adapted to engage a longitudinal member arranged between the two blocks. In the form shown in Fig. 1, the plates 10 are secured to the outside of the block by bolts 4 and have upstanding parts 10<x> connected to the longitudinal member 12 by a bolt or bolts 13 engaging slots 14 to permit relative vertical movement of the two blocks. The members 10<x> may have vertical slots to engage the pins 13 or may be slotted to receive a tubular longitudinal member fitted with suitable stops. The plates may be connected by a bridgepiece provided with a rod or rods, a triangular plate, or a trough-shaped member to engage the longitudinal member. The triangular plate may itself form the bridge and the bridge mav be slotted to engage a shackle carried by the longitudinal member. In the form shown in Fig. 10, the plates and bridge are replaced' by bridles 10 bolted to the block. The bolts 13 may be held in place by turn buttons 26 so as to be readily removable.
Patent GB-175256-A (GB)
Title: Improvements in high frequency telephony
IPC: H03C1/16
Filed: 1922-01-18
Abstract: 175,256. Ges. f³r Drahtlose Telegraphie. Feb. 11, 1921, [Convention date]. Thermionic modulating systems and apparatus. -In apparatus for modulating the oscillatory output current of a thermionic generator in accordance with speech, the varying speech potential is applied both to the grid and to the plate of the generating-valve, the potentials being in phase opposition and in a proportion depending on the constants of the valve. As shown in Fig. 2, the speech currents in the microphone circuit M affect the grid potential of an amplifier I and vary the plate current through the primary coil 1 of a transformer. The secondary coil 2 of this transformer is in the plate supply circuit of the generator II, and the other secondary 3 is connected across a condenser in the grid circuit of the generator II. The proportions and connections of the coils 2, 3 are such that e + k E is constant, where e is grid potential, E plate potential, and k a valve para meter. Under these conditions, the oscillatory output curent is proportional to the microphone current, and the tendency for the oscillations to cease or to become unduly weak when the plate potential is low is obviated.
Patent GB-174358-A (GB)
Title: Improvements in or relating to clutch discs
IPC: F16D69/02
Filed: 1922-01-19
Abstract: 174,358. Birkigt, M. Jan. 24, 1921, [Convention date]. Clutches, friction.-Clutch discs a adapted to beengaged by co-operating discs on either side are made from thin metal, preferably sheet steel, with a concave annular recess b, adapted to accommodate projecting parts on a co-operating disc, and with slits a<1> with flared ends a<3> and preferably terminating in enlargements a<2>.
Patent GB-1462331-A (GB)
Title: Process for producing water-soluble acrylamide polymers
IPC: C08F20/56
Filed: 1975-01-15
Abstract: 1462331 Production of water-soluble acrylamide polymers SUMITOMO CHEMICAL CO Ltd 15 Jan 1975 [16 Jan 1974] 1710/75 Heading C3P Water soluble high molecular weight acrylamide homopolymers or copolymers are produced by polymerizing the requisite monomer(s) (containing a major amount of acrylamide in the case of mixtures) at between 5 and 25 C. in the presence of polyvinyl alcohol and an initiator, in a medium which is an acetone/water mixture, the concentration of monomer(s) in the reaction mixture being 15- 30 wt. per cent and the concentration of acetone in the acetone/water mixture being 15-35 wt. per cent, and during polymerization, adding a water-miscible organic solvent having a small chain transfer coefficient in order to maintain the viscosity of the system at a suitable level for the production of a high molecular weight acrylamide polymer. Suitable water-miscible organic solvents which may be added are further acetone, acetonitrile, dioxane, tetrahydrofuran or a mixture of two or more thereof. Said solvent may be introduced by means of a number of individual additions, preferably 3 to 8. The amount of solvent added usually comprises from 1-5 wt. per cent of the total reaction mixture.
Patent GB-837821-A (GB)
Title: Composition of catalyst
IPC: B01J23/882
Filed: 1957-01-17
Abstract: A catalyst comprises a support of silica and alumina, the alumina being in the range of 20 to 40% by weight of the silica and alumina, and at least one component consisting of iron, cobalt, nickel, molybdenum, tungsten, vanadium or tin, or an oxide or sulphide of such a metal.  The support may contain magnesia in an amount not exceeding 10% by weight of the silica, alumina and magnesia. Mixtures of compounds may be used, such as nickel molybdate, tungstate, thiomolybdate or thiotungstate; mixtures of nickel oxides with molybdenum or tungsten oxide; cobalt-molybdena, cobalt thiomolybdena; and tungsten sulphide and nickeltungsten sulphide. The silica-alumina support may be treated with a cationic, anionic or non-ionic surface-active agent.  The catalyst is used for the hydrocracking of residual petroleum fractions at 700 DEG  to 1000 DEG F., at a pressure of 500 to 3000 p.s.i.g., and treating 0.5 to 5 pounds of oil per pound of catalyst per hour. In an example aluminium sulphate solution is added to a solution of sodium silicate and sulphuric acid to obtain a silica-alumina gel, which is impregnated with a solution of ammonium molybdate and cobalt nitrate, dried, pelleted and calcined.  The catalyst is heated in a stream of hydrogen, and then in hydrogen sulphide to convert the cobalt and molybdenum oxides to sulphides, followed by hydrogen again, and a virgin gas oil is cracked by passing it over the heated catalyst. Specification 816,307 is referred to.
Patent GB-667080-A (GB)
Title: Improvements in or relating to cam mechanisms
IPC: F16H53/06
Filed: 1950-01-24
Abstract: 667,080. Cam mechanism. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Jan. 24, 1950 [Jan. 29, 1949], No. 1880/50. Class 80 (iii). A roller follower, actuated by a rotary cam 1, comprises a roller 10 and a rod 4 passing through a guide member 6. The rod 4 has a forked end 5 to which are pivoted crank arms 7 rigidly attached to a shaft 9 carrying the roller 10. The spacing of the roller centre from the axis of rotation 8-8 of the crank arms is equal to the radius of the roller, so that as the cam 1 rotates the point of contact of the roller therewith is always on the axis 8-8. The roller follower is thus given the same motion as would be given to a chisel-edge follower, and no modification of cam profile is necessary.
Patent GB-122061-A (GB)
Title: Apparatus for Indicating the Amount of Inclination of an Aeroplane.
Inventor: ANDERSON GEORGE
IPC: G01C9/14
Filed: 1918-02-04
Abstract: 122,061. Anderson, G. Feb. 4, 1918. Clinometers. - An instrument for use on aircraft comprises a shallow cylindrical box a<1>, a<2> containing pivoted therein a pendulum c bearing an arm e which moves over a luminous scale b on the edge thereof. The box carries a spindle h mounted in ball-bearings m<1>, m<2>, and carries a pointer which moves over a luminous scale n and indicates inclination in a plane at right-angles to that indicated by the scale b.
Patent GB-400576-A (GB)
Title: Improvements in or relating to rotary hammers
IPC: B25D11/06
Filed: 1932-01-22
Abstract: 400,576. Percussive drills. WAGNER, G., 2, Rue Nicephore Niepce, St-Etienne, Loire, France. Jan. 22, 1932, No. 2017. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 20, 1933]. [Class 124.] In a rotary hammer comprising striking masses 3 which are mounted for free radial movement on a revolving member 1, and travel inside a guiding ring to trace out a trajectory of varying radius, the masses 3 are provided with steps. These steps cooperate with elements of different heights which constitute the guiding means in such a manner as to reduce the slipping of the striking masses on the path to a minimum. The masses 3 bear in the sectors EOF and IOJ through their larger diameter on parts 8, 9 of a guiding ring, and in the sector GOH through their smaller diameter on parts 10, the angles of overlap of the sectors being as small as possible. The blow is delivered on the head 11 of the tool through the central portion of small diameter of the masses 3.
Patent GB-916670-A (GB)
Title: Tetracycline type ester and preparation thereof
IPC: A61K31/65
Filed: 1961-01-18
Abstract: Sulphuric acid esters of tetracycline and chlortetracycline are prepared by reacting tetracycline or chlortetracycline with a sulphur trioxide sulphonating agent by the method described in the parent Specification for the production of the oxytetracycline esters. Derivatives similar to those referred to in the above Specification can also be prepared.  The esters may be incorporated with suitable pharmaceutical carriers and used pharmaceutically in the form of capsules, tablets, injectable preparations, dusting powders, ointments or salves.
Patent GB-708036-A (GB)
Title: Improvements in automatic multiple spindle lathes
IPC: B23B9/04
Filed: 1952-01-25
Abstract: 708,036. Lathes. SCHUETTE, A. H., COMMER, G., WELCKER, L., THEN, E., and PECHMANN, E. F. VON, [trading as SCHUETTE, A. H., [Firm of]]. Jan. 25, 1952 [Feb. 9, 1951], No. 2137/52. Class 83 (3) A multi-spindle lathe comprises a number of work spindles in a rotative arrangement with work-feeding and clamping means, two or more separate cam drums being provided each having a feeding and a clamping cam which co-operate with slides to actuate the feeding and clamping means in different spindle positions. Two independent cam drums 19 are on shafts 18, at the front and back of the machine respectively. Cam grooves 20, 21, Fig. 1, in these drums engage slide members 16, 17, for operating feeding and clamping devices for the work at two opposite stations of the turret 14.
Patent GB-657165-A (GB)
Title: Improvements in the production of organic compounds
IPC: C07D301/10
Filed: 1949-01-26
Abstract: Partial oxidation of organic compounds by reaction with oxygen, particularly the production of ethylene oxide from ethylene is carried out in the presence of a fluidized catalyst comprising silver and an oxide of copper and/or zinc and optionally barium peroxide, deposited on a finely-divided inactive support such as alumina for each 100 parts of which 10-70 parts by weight of silver, 0.1-2.0 parts of copper or zinc oxide and 3-10 parts of barium peroxide are preferred.  8-20 parts by volume of air per part of ethylene are employed at a reaction temperature between 200-350 DEG  C., particularly 230-320 DEG  C., the reaction time being about 0.5-2.5 seconds.  In an example an air/ethylene mixture of volume ratio of 10 is passed upwardly at 238 DEG  C. through a catalyst containing 26 parts of metallic silver, 0.3 parts cupric oxide and 4.5 parts barium peroxide per 100 parts of alumina. Ethylene oxide is separated from the exit gases and unreacted ethylene recycled.ALSO:A catalyst for the partial oxidation of organic compounds with air employing the fluidized technique, particularly the production of ethylene oxide from ethylene and air, comprises metallic silver, copper or zinc oxides and optionally barium peroxide deposited on an inactive support, and is prepared by adding an aqueous solution of an alkali metal hydroxide to an aqueous solution of the nitrates or acetates of silver and copper and/or zinc to precipitate the oxide and hydroxides which are combined with the support, such as inactive alumina, barium peroxide being optionally added.  The composite is screened and heated to 260 DEG  C. in air to decompose the silver oxide to metallic silver. Alternatively silver oxide may be precipitated alone and added to the copper, zinc and barium oxides mixed with the support.  For each 100 parts of alumina, 10-70 parts by weight of silver, 0.1-2.0 parts of copper or zinc oxides and 3-10 parts of barium peroxide are preferably present in the final catalyst.
Patent GB-620804-A (GB)
Title: Improvements in and relating to electric valve or the like sockets
IPC: H01R33/76
Filed: 1947-01-24
Abstract: 620,804. Glass-to-metal seals. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 24, 1947, No. 2287. Convention date, Jan. 25, 1946. [Class 36] An electronic valve socket suitable for hermetically sealing an opening in a metal enclosure 14 comprises a glass mounting member 1 having a plurality of conductors 3 sealed through it, and a circular metal member 2 sealed to the periphery of the glass member. The ring 2 is crimped to receive a metal cylindrical member 6 to which it is soldered, the member 6 being provided with a plastic insert 7 to accommodate the spring-sockets 4 for the valve pins, and to which the conductors 3 are welded or crimped. The upper portion of the member 6 is formed into a flange 10 over which is placed a retaining ring 11, the inner edge of which extends over the ridged portion 12 of the plastic member 7. The opening in the enclosure 14 is hermetically sealed by applying solder completely around the outer edges of the ring 11 and the flange 10.
Patent GB-310395-A (GB)
Title: Improvements in, and relating to rope rollers or pulleys for haulage work
IPC: B66D3/04
Filed: 1928-01-24
Abstract: 310,395. Burrows, W. Jan. 24, 1928. Frame pulleys.-A rope pulley for haulage work having a check or guard h at each side has the connecting web b formed with a convex surface p to avoid chafing of the rope.
Patent GB-1164431-A (GB)
Title: Improvements relating to the Protection of Instruments Intended for Use at High Temperatures
IPC: G01K1/12
Filed: 1966-01-18
Abstract: 1,164,431. Thermocouples. PILKINGTON BROS. Ltd., and W. C. HYND. 3 Jan., 1967 [18 Jan., 1966], No. 2324/66. Heading H1K. A closed - ended re - fractory tube 11 constituting the housing of a temperature sensitive device such as a thermocouple (not shown) is fitted in a protective casing 12 consisting of a refractory part 12A and an oxidation resistant metal part 12B. As particularly described for immersion in molten glass, the part 12A is of molybdenum and the part 12B of steel. The casing 12 may be attached to the tube 11 or spaced from it as shown. Any space between the tube and casing may be filled with an inert gas : the inlet 18 of Fig. 1 is designed to admit such a gas, preferably nitrogen. When the encased tube is fitted in the refractory base 15 of a vessel containing flowing molten glass, some glass from the melt will enter, and on solidifying seal, any clearance space 16 between the casing 12 and the base 15. In Fig. 2 (not shown), the casing 12 is generally as in Fig. 1 except that the inlet 18 and plug 17 are omitted, and instead there are small apertures (12D) in the casing part 12A near its closed end. These allow molten glass to enter the space between the casing 12 and tube 11, but as such glass is virtually static it has minimal deleterious effect on the tube 11, which remains protected from the more rapidly flowing glass outside the casing 12. At the open lower end of the casing, such "static" glass will solidify to form a seal equivalent to the omitted plug 17. A single casing 12 may contain more than one thermometer tube 11.