baber/WOPTO huggingface dataset:
Patent GB-446539-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B62D21/14
Filed: 1935-01-17
Abstract: 446,539. Transmitting-mechanism for brakes. GRIST, G., c /o Auto - Mower Engineering Co., Ltd., Bath Road, Norton St. Philip, near Bath. Jan. 17, 1935, No. 1658. [Class 103 (i)] In timber-wagons and other road vehicles in which the distance between the front and rear axles can be varied, the flexible member by which the brakes are operated is so arranged that its effective length is automatically varied to compensate for variation of the wheel base. The timber-wagon shown comprises a beam 10 supported by a front bogie carriage 12 and a rear carriage 14 slidable along the beam by a socket 18. The brake-operating cable 36 is attached at 42 to the beam 10, passes around pulleys 44, 46 on the frame of the carriage 14 and on the sliding brake bar 34 thence around a floating pulley 40 and is attached at its other end to the sliding brake-bar 30. The pulley 40 is connected by a chain 38 to the operating lever and the bars 30, 34 are connected by links to the operating arms 24, 26 of the front and rear brakes. When the carriage 14 is shifted along the beam, the effective length of the cable, that is, from the chain 38 to the bar 34 is also changed without varying the actual length of the cable. In a modification, the cable 36 is duplicated, each cable being directly attached to one front brake arm 24 and passing around a pulley on a rear brake arm 26.
Patent GB-1147846-A (GB)
Title: Improvements in or relating to packaging and packaging materials
IPC: B29C48/19
Filed: 1968-01-12
Abstract: 1,147,846. Packaging films; making wrappers and bags with tear strips. TOWER PACKAGING CO. 12 Jan., 1968 [17 Jan., 1967], No. 1766/68. Headings B5B and B5D. [Also in Division B8] Flexible thermoplastic sheet material including a relatively narrow band of coalesced compatible thermoplastic material of different character extending substantially through the thickness of the sheet which demarks a zone of severance facilitation and extends in the direction of sheet formation can be made by extruding a first molten thermoplastic material through a sheet-forming die, and simultaneously extruding a second molten compatible thermoplastic material of different character in a relatively narrow band into the path of the first molten material before it issues from the die. The secondary plastics tends to displace under pressure the primary stream of melt and tends to maintain its position and composition within the melt mass, and as the displacement occurs the peripheral area of the two materials bond to form a continuous film that can be heat-sealed. The sheet may be formed by blow extrusion as in Fig. 1. Molten plastics 11 is fed into die orifice 12 wherefrom it issues through the annular lip 13 and is expanded into tube 14 by blowing air into it from source 15. As the tube 14 is formed, thermoplastic material 16 is fed from second extruder 17 into die 18 and die cavity 12 at a point inwardly of annular die lip 13 and it moves under pressure and displaces the first plastics 11 for a relatively narrow band. A film casting technique as shown in Fig. 2 can also be used. Die 21 is fed with molten plastics 11 into die cavity 22 whereupon it issues from lips 23 in the form of sheet 20. Simultaneously thermoplastic material 16 is fed from control unit 24 to die 21 at any point in the die prior to issuance of the sheet material from lips 23 so that it merges and displaces the main plastics body in a narrow band 19. The plastics material of the main sheet can differ from that of the narrow strip by being either weaker or stronger, more linear or less linear, higher density or lower density and is composed of such materials as polyethylene, polypropylene, and other polyolefins, nylon or modified plastics such as rubber modified polyethylene. The narrow band may be pigmented so that it is of a different colour to the main sheet which is usually transparent. The material may be used for making packaging receptacles or envelopes with an incorporated tear-strip (see Division B8).
Patent GB-426938-A (GB)
Title: Improvements in or relating to coupling devices for inflating valves and the like
IPC: B60S5/04
Filed: 1935-01-19
Abstract: 426,938. Tyre - valve couplings. WALTERS, B., 57, Bailey Street, Sheffield. Jan. 19, 1935, No. 1831. [Class 99 (i)] A push-on air-pipe coupling is secured to a tyre-valve nipple 9 by a spring 7 which is located by a nut 16 on a plunger 2, movable within the coupling casing 1 and formed with an air connection 3, the spring 7 being of circular formation with parallel bent-out ends 6 projecting into a slot 5 which is formed in the wall of the casing 1 and is provided with two opposed inclined surfaces 13 merging into two parallel surfaces 14. The plunger 2 is bored to receive the nipple 9, and within the bore it houses a spring-pressed piston 10 which is provided with an axial hole for the passage of air and also a rubber facing washer 11. In the operation of applying the coupling to the nipple and with the arms 6 of the spring 7 initially between the inclined surfaces 13, the nipple first contacts with the piston 10, causing it to move against the pressure of the spring 12, and then effects axial movement of the plunger 2 within the casing 1. This latter movement first forces the spring arms 6 towards the narrow part of the slot 5, which results in a reduction in the diameter of the circular part of the spring and causes this part of the spring to grip the threads on the nipple, and then between the parallel surfaces 14 to maintain the spring in this contracted condition, thus locking the coupling and nipple together.
Patent GB-1451062-A (GB)
Title: Baby soothers
IPC: A61J17/00
Filed: 1973-01-13
Abstract: 1451062 Moulding a baby soother LEWIS WOOLF GRIPTIGHT Ltd 27 Dee 1973 [13 Jan 1973] 1892/73 Heading B5A [Also in Divisions A5-A6] A baby soother comprises a one-piece tubular combined teat 10 and handle portion 11 moulded by a latex dip process, and a flange 12 forming a shield secured to the tubular component between its ends, there being a chemical and mechanical bond between the flange and the members 10 and 11. In order to form and secure said flange, the combined teat and handle portion is inserted into the centre hole in a mould having a shallow tray with a circular periphery, a bead 13 on the teat and handle component locating in the base of said tray. The tray is then filled with latex material which flows around and bonds to said bead as well as forming the flange. The complete device is removed from the mould after cooling. An insert may be embedded in the shield by positioning said insert in the mould and then pouring said material into the mould and around said insert.
Patent GB-1388911-A (GB)
Title: Production of porous ceramic materials
IPC: C04B38/10
Filed: 1972-01-14
Abstract: 1388911 Porous ceramics FOSECO INTERNATIONAL Ltd 3 Jan 1973 [14 Jan 1972] 1927/72 Heading C1J An organic foam, e.g. of polyurethane, is treated to break down the foam with a glycol, a fatty acid having at least 11 C atoms or an alkoxy derivative of an amine, prior to or during impregnation with a ceramic slurry, dried and fired. The treatment gives rise to a coherent foam structured mix of ceramic and foam breakdown products rather than a foam coated with ceramic particles. Examples of the treating agent are mono- and di-ethylene glycols, stearic and oleic acids and mono-, di-, and triethanolamines. In examples the slip contains dextrin, kaolin, sejenite, alumina, polyacrylamide, and anti-foamants.
Patent GB-874131-A (GB)
Title: A process for hardening furfuryl alcohol resins
IPC: C08J3/24
Filed: 1959-01-19
Abstract: A process for hardening furfuryl alcohol resin coatings with acid hardening agents, comprises initially coating the article to be coated with a liquid acid hardening agent and then with the furfuryl alcohol resin and finally hardening or curing the coating, if necessary by the use of heat.  The furfuryl alcohol resins may be made by the method of Specification 850,413 and may be hardened by means of furfural.  The acid hardening agent may be sprayed on to a sheet metal plate provided with a phenol resin baking primer based on a nonplasticized phenol resin.  In examples a layer of furfuryl alcohol resin which may be applied in solution in a volatile solvent on a sheet metal plate or a glass fibre mat is hardened by a solution of 3% of sulphuric acid in ethyl acetate.  Furfural may replace part or all of the volatile solvents.
Patent GB-738845-A (GB)
Title: Artificial limb
IPC: A61F2/50
Filed: 1953-01-23
Abstract: 738,845. Artificial feet. BLATCHFORD & SONS, Ltd., C. A., and BLATCHFORD, W. A. D. Jan. 13, 1954 [Jan. 23, 1953], No. 1992/53. Class 81 (2). In order that shoes having heels of different height may be worn, the angular relationship between the foot and skin members of an artificial leg is made adjustable, such adjustment being effected by rotatably mounting in the foot in front of the ankle joint, a threaded member surmounted by a resilient buffer which is kept in engagement with the bottom of the shin by a spring which tends always to reduce the angular relationship. In the foot and shin assembly shown a recess 4 in the foot houses a spring 6, angle joint 1, 2, 3 and a resilient buffer 5 the latter being mounted on an externally threaded member 9 which is threadedly engaged within an internallythreaded socket member 7 secured to, and extending through, the foot. The member 9 has hexagonal bore 9B for receiving a corresponding hexagonal rod 11 which forms a removable manually-operable key for the member. Rotation of the member 9 effects angular adjustment between shin and foot, the spring 6 preventing increase other than that occurring in use of the angle beyond that to which the foot has been adjusted.
Patent GB-269677-A (GB)
Title: Improvements in the manufacture and production of pure iron
IPC: C22B5/20
Filed: 1926-01-23
Abstract: 269,677. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Jan. 23, 1926. Carbonyl processes.-Pure iron is produced by introducing iron carbonyl, liquid or vapour, into a heated vessel at a considerable distance from the hot walls of the vessel, so that the decomposition takes place in the vessel, but not in contact with the hot walls. Fig. 1 shows diagrammatically an apparatus comprising a jacketed evaporator 2 for the carbonyl from a container 1. The vaporized carbonyl, mixed if desired with gases or vapours from a pipe 4, pass into the decomposition vessel 6, which has 3 heating-jacket 7. Catalysts may be introduced by a nozzle 8. The iron is separated in dust chambers 10 and removed by worm conveyers. Observation windows are fitted. The carbon monoxide formed is withdrawn by a pipe 14 and used, for example, in making iron carbonyl. Temperatures between 400‹ and 900‹ C. should be avoided, and the metal should be prevented from coming into contact with carbon monoxide when cooling it between the temperatures. The process may be carried out in the presence of gaseous, vaporized, or pulverulent catalytic substances, e.g. ammonia, or finely-divided iron. The iron carbonyl may be mixed with inert gases, and the decompositon may be carried out at reduced pressure. The iron is obtained as a powder, which may be separated by passing the gases through an inert melt, e.g. of paraffin wax, or otherwise mechanically, electricallly, or magnetically, and is free from impurities except traces of nickel and cobalt, and carbon and oxygen, which may be removed by heating or melting.
Patent GB-464362-A (GB)
Title: Improved bottle closure means
IPC: B65D41/26
Filed: 1936-01-22
Abstract: 464,362. Bottles. DOMANDZIC, A., and PETRICEVIC, M. Jan. 22, 1936, No. 2035. Convention date, Nov. 13, 1935. [Class 125 (i)] A bottle closure comprises a tumbler 8 having an inwardly extending threaded spigot 2, which engages an internal thread on the bottle neck.. A second thread 4 may be formed on the bottle neck which engages a thread 9 on the tumbler. A gasket 7 seals the closure. Ribs or beads 13 facilitate the gripping of the tumbler for opening purposes.
Patent GB-290265-A (GB)
Title: Improvements relating to treatment of saccharate scums
IPC: C13B20/16
Filed: 1928-01-21
Abstract: 290,265. Raffinerie Tirlemontoise Soc. Anon. May 12, 1927, [Convention date]. Refining sugar.-The saturation scum, and lime, baryta, strontia, and other saccharate scums occurring in sugar treatment, are centrifuged to separate them from the sugar juice &c., the centrifugal force being increased so far that the scum remaining in the centrifuge contains only about 15-20 per cent of water, juice, or liquor. The centrifugal force required is 1500- 6000 times or more the weight of the substance treated. The Specification as open to inspection under Sect. 91 (3) (a) includes the treatment of scums of all kinds. This subject-matter does not appear in the Specification as accepted.
Patent GB-1249221-A (GB)
Title: Electronic amplifier circuit arrangements
Inventor: DAWNAY JOHN CHRISTIAN GEORGE
IPC: H03F1/22
Filed: 1969-01-14
Abstract: 1,249,221. Transistor amplifying circuits. J. C. G. DAWNAY, and E. A. FAULKNER. 3 March, 1970 [14 Jan., 1969], No. 2071/69. Addition to 1,136,431. Heading H3T. An amplifier comprises one stage including a pair of transistors T 3 , T 4  of similar type connected in cascode, and another preceding stage which includes a transistor T 1  of complementary type having a resistive emitter load R 1  separate from the load of the cascoded pair of transistors, and a feedback path from the collector electrode of the common base transistor T 4  of the cascoded pair to the emitter load R 1  of the complementary transistor T 1 . The cascoded pair stage may be succeeded by an emitterfollower stage T 5 , the feedback path comprising a resistor RG. An emitter-follower stage T 2  may also be interposed between the complementary stage T 1  and the cascode connected stage T 3 , T 4 . A resistor R7 may be provided for augmenting the current in the transistor T 3 . The gain may be varied by means of a resistor RV 1  controlling the degree of feedback.
Patent GB-304773-A (GB)
Title: Improvements in or relating to automatic switches for use in telephone or like systems
IPC: H01H67/06
Filed: 1929-01-21
Abstract: 304,773. Associated Telephone & Telegraph Co., (Assignees of Sengebusch, H.). Jan. 27, 1928, [Convention date]. Automatic exchange selectors.-A rotary switch with bare wire multiples has wipers, Fig. 4, of which the part 28 engages plates 3 while the part 29 (prong 30) engages the wires. The prong 31 engages a, ledge 2 to prevent the prong 30 from engaging two wires at once, but the ledge may be absent from the part 9 of the circumference occupied by test multiples. The plates 3 are moulded in an insulating base 1 mounted by screws on an angle-iron 10. Eight wipers are mounted 45 degrees apart on an insulating spider 16, driven by a ratchet wheel 26 under the base 1.
Patent GB-1383641-A (GB)
Title: Vehicle anti-theft devices
IPC: B60R25/00
Filed: 1971-01-16
Abstract: 1383641 Anti-theft devices G V BUTLIN and A RAYMOND 15 Feb 1972 [16 Jan 1971 15 Feb 1971] 2236/71 and 4696/71 Heading B7J A device, for locking an operating pedal (e.g, clutch or accelerator pedal) of a motor vehicle. comprises a tubular casing formed of two channel-sectioned parts 1, 2 to envelop the stem 12 of the pedal, formed with a footplate 10, with one end of the casing engaging the underside of the footplate to prevent depression of the pedal, and a hasp member 5 extending from the inside of the part 2 and arranged to pass through an aperture (slot) 6 in the part 1 so that the parts may be locked together, by a padlock engaging a hole 7 in the hasp, in envelopment with the stem. The parts 1, 2 are hinged together at 3, 4; inclined to the webs at one end and provided with plates 8 and 9 welded thereto to engage the underside of the footplate 10. A modified form of the device, for use with a swing type pedal stem, is described with reference to Fig. 4 (not shown).
Patent GB-524117-A (GB)
Title: Improvements in or relating to engine control means
IPC: B64C11/30
Filed: 1939-01-23
Abstract: 524,117. Fluid-pressure servomotors controlling aeroplane engines. UNITED AIRCRAFT CORPORATION. Jan. 23, 1939, No. 2275. Convention date, March 1, 1938. [Class 114] [Also in Group XXIX] The speed and torque of an aeroplane engine are maintained constant by a rapidly acting speed control followed in its action by a torque control. The centrifugal governor 74 driven by the engine acts on the valve of a fluid servomotor 76 to control the engine throttle 80. The torque is controlled by varying the propeller pitch by a hydraulic motor controlled by a valve 44 which is actuated by a piston 40 against the pressure of a spring 42 the movable abutment of which can be varied to obtain the required torque setting by a manual cable 72. The piston 40 is operated by fluid admitted under pressure from fixed cylinders 28 which also supply a pressure gauge 35, the pistons of the cylinders 28 being under the control of a sun and planet torque indicator 16, so that the gauge pressure is proportional to the torque. In a modification the valve 44 is actuated by the intake manifold pressure of the engine, assumed to be proportional to the torque, introduced into a sealed bellows acting on the valve against a spring bellows with a manually adjustable abutment.
Patent GB-534369-A (GB)
Title: Improvements in or relating to sound recording apparatus
Filed: 1940-02-08
Abstract: 534,369. Modulating light. RADIO CORPORATION OF AMERICA. Feb. 8, 1940, No. 2436. Convention date, March 31, 1939. [Class 40 (iii)] [Also in Group XXXVIII] In recording sound optically in variable density tracks by means of a penumbra mask 11. Fig. 12, the mask is adjustable longitudinally along the optical axis with or without transverse adjustment for volume compression and ground noise reduction. The penumbra mask may have a sawtooth edge or a graded transparency. A double vane lateral shutter 30, 30 may be added to operate in conjunction with the adjustable penumbra mask to produce a track yielding volume proportional to original volume but with ground noise decreasing with decreasing volume. In a modification, Fig. 8, the mask is in the form of a curved plate 22 adapted to be raised and lowered about a pivot 21 by an electromotor 15. Specification 456,998, [Group XXXVIII], is referred to.
Patent GB-413033-A (GB)
Title: Improvements relating to boxes for small articles
IPC: B65D5/54
Filed: 1933-01-26
Abstract: 413,033. Boxes. LENG, A. C., and LENG, A. S., (trading as LENG & SONS, C. H.), Hazelwell Brush Works, Fordhouse Lane, Stirchley, Birmingham. Jan. 26, 1933, No. 2504. [Classes 18 and 66.] A rectangular cardboard, &c. box with a hinged or removable lid b has one side or end formed with slits or perforations defining an integral flap c which provides access to the contents independently of the lid. The flap is formed by cutting through the slits or perforations. According to the Provisional Specification, the piece c may be completely removed, and the flap or removable piece may be cut out and then temporarily secured by a label.
Patent GB-104889-A (GB)
Title: Improvements in and relating to Carburettors for Internal Combustion Engines.
Inventor: MONGIARDINO JOSEPH FREDERICK
IPC: F02M7/24
Filed: 1916-02-21
Abstract: 104,889. Mongiardino, J. F. Feb. 21, 1916. Spray carburettors.-In a carburettor having a throttle valve located in the air-supply passage on the side of the fuel nozzle remote from the engine, the fuel at the spraying point is controlled by a suction-actuated sleeve or valve, so that the supply decreases as the throttle valve closes, and vice versa. In the construction shown in Fig. 2, a throttle valve d is located in the air-inlet passage b, and the fuel supply is controlled by a suctionactuated sleeve p, which surrounds a spraying- nozzle e. The sleeve works against the pressure of a spring w and controls the supply of fuel by regulating the area of an annular passage around the nozzle, into which passage air is induced through orifices r. According to a modified construction, the sleeve around the nozzle is dispensed with, a needle valve being acted upon directly by the varying pressures in the carburettor.
Patent GB-719195-A (GB)
Title: Improvements in oxide cathodes for electric discharge tubes
IPC: H01J9/04
Filed: 1953-01-29
Abstract: 719,195. Cathode materials and processing. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. Jan. 29, 1953 [April 22, 1952], No. 2628/53. Addition to 673,438. Class 39(1) The coating composition containing specified proportions of the oxides of barium strontium and calcium according to the parent Specification contains also zirconium dioxide which may be added thereto or precipitated with the other oxides. The cathode may be used in fluorescent lamps or vacuum tubes.
Patent GB-544125-A (GB)
Title: Improvements in or relating to the purification of atmosphere or gas, particularly in apparatus for respiration
IPC: A62B9/00
Filed: 1940-02-12
Abstract: 544,125. Respiratory appliances. HARTMAN, F. W. Feb. 12, 1940, No. 2685. [Class 81 (ii)] Noxious gases are condensed or solidified out of the-atmosphere flowing in a closed circuit between a chamber containing liquid oxygen and liquid air receptacles 90 and a tent 21 over the bed of a patient, the heat transfer means between the warm and cold gases preferably being in the form of metal rods 95, Fig. 2, extending into the receptacles 90 and into a mixing chamber 56. The receptacles are mounted on bases 80 with vertical guide tubes 86 slidable on fixed rods 81, the tubes being connected by links 88 with, levers, 89 having rollers engaging tracks 78 on casing doors 34 hinged at the bottom; so that as the doors are opened the receptacles descend under the action of gravity, and are raised where the doors are closed to engage the mouths of the receptacles with gaskets 55. One edge of the bed tent is secured by a cord &c. 71 in a groove 70 in a flange of one wall of the casing so as to yield readily and avoid disturbance of the receptacles by movement of the patient. The flow of cold air &c. is controlled by dampers 63 in openings 60 in the end of the casing, and the warm air returns through other openings 59. The casing is mounted on an adjustable vertical pillar 26 and overhangs the head of the bed. In one modification the receptacles are mounted below tubular ducts leading up to a common chamber connected to the tent through separated flow and return ducts, the receptacle support being raised and lowered by a cam. In another arrangement a forced circulation is produced by a fan 260, Fig. 7 mounted in the upper part of a casing provided with coeccentric passages 267, 265, the inner passage being divided by a partition 264 within a duct 266 communicating with the tent. The circuit of the fan motor 261 may be controlled by a thermal element 280 inside the tent.
Patent GB-1213455-A (GB)
Title: Extrusion apparatus
Inventor: SLACK IAN DAVID
IPC: B29C48/05
Filed: 1967-01-19
Abstract: 1,213,455. Feed block for extruders. PLASTICISERS Ltd. 18 April, 1968 [19 Jan., 1967], No. 2865/67. Heading B5A and B5B. A feed block for an extruder comprises inlet and outlet for connecting to an extruder and die head respectively, a passage joining the inlet and outlet and a filter and a breaker plate housed in the passage and retained in place by a removable portion of the block. As shown, the feed block 28 is attached to an extruder 10 and a die block 12 connected by a bore 20, 24. A section 32 of the die block is removable and when in position clamps a filter 14 and breaker plate 16 against rim 64 of the widened portion 60 of the bore 20. The central part of the bore (52, 56, 54) including the elbow 22 is situated in the removable section 32. A screw thread 70 in the section 32 assists withdrawal of the section for changing or cleansing the filter and breaker plate, and the section is sealed in place by a sealing ring 72. The feed block may be used with dies for the extrusion of plastics filaments and film.