baber/WOPTO huggingface dataset:
Patent GB-466050-A (GB)
Title: Improvements in or relating to synchronising means in the transmission of television and the like
IPC: H04N5/06
Filed: 1936-02-19
Abstract: 466,050. Television. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Feb. 19, 1936, No. 5066. [Class 40 (iii)] Relates to television &c. transmission appar. atus, in which synchronizing signals are generated by a scanning disc, both the higher frequency and lower frequency signals being produced in the circuit of a single photoelectric device. According to the invention, the circuit of the said device P is branched, one branch leading to a filter F<1> which transmits only the lower frequency (or frame) synchronizing signals, and the other leading to a filter F<2> which transmits only the higher frequency (or line) synchronizing signals and rejects neighbouring frequencies arising from inequalities in the spacing on the disc of the higher frequency signal generating apertures. The filtered signals may be combined at M, together with the picture signals if desired.
Patent GB-1023120-A (GB)
Title: Strapping machine
IPC: B65B13/06
Filed: 1965-02-05
Abstract: 1,023,120. Bundling-machines. FMC CORPORATION. Feb. 5, 1965 [Dec. 29, 1964], No. 5137/65. Heading B8C. [Also in Division B5] A machine for tensioning and securing a plastics strap about an article includes means to hold the strap in tension about the article while retaining the free end and that portion extending to the supply untensioned and for heating the surfaces of and squeezing together the overlapping portions to form a welded joint. The machine may include a fixed guide truck or yoke for passing the strap about the article, or this may be done manually. Strap from a roll passes over a roller 22, round an idler 44, a drive roller 46 and a further idler 48 to the yoke channel. The idlers 44, 48 are mounted on bell-crank means 62 so that one or the other may press on the roller 46 according to whether the strap is being fed forward or withdrawn to tension it. The strap traverses a slot 68 in a gripping member 70 pivoted at 72, passes between a cantilevered fixed gripper jaw 74 and a lower jaw 76, pivoted at 80, beneath a plate 84 which may slide transversely to release it and round the yoke 16, the latter having spring loaded angle strip retainers 36, Fig. 5 (not shown), to hold it until pulled clear by tensioning. Finally the strap end passes above part 86 of the member 70 and operates a switch 88 to stop the feed. The member 70 is pivoted upwards to grip the strap free end against a fixed plate 85 and feed is reversed to free the strap loop and draw it about the article. The last portion of the strap to leave the yoke operates a switch 148 to stop the reverse feed. Jaws 74, 76 then grip the strap, and a horizontally extending heated blade 178, Fig. 7 (not shown), on a lever 164 is inserted transversely between the overlapped portions to cause superficial melting. A presser 200 squeezes together these portions initially against the blade and then against each other after the blade has withdrawn and at the same time severs the strap against the part 86. Finally the gripping portions 74, 76, 85, 86 open, the strapped article is drawn clear transversely, the strap slipping off the jaw 74 and portion 85. Articles may be passed through the handler on a conveyer and contact switch means to initiate strapping (not shown).
Patent GB-111788-A (GB)
Title: Improvements in or relating to Rotary Valves for Internal Combustion Engines.
Inventor: FRANCIS DANIEL HIGHBERGER
IPC: F01L7/08
Filed: 1917-04-12
Abstract: 111,788. Francis, D. M. April 12, 1917. Valves; valve-gear. - At the larger end of each of the rotary conical valves 16 of a four-cylinder engine is an auxiliary explosion chamber 18 communicating with the cylinder and with the inlet and exhaust passages by means of passages 7, 19, 20 independent of the main passages 17, 8 of the valve and cylinder. The explosion occurring in the chamber 18 prevents the valve from being lifted off its seat by the explosion in the cylinder. The valves are in alinement, with their larger ends facing in the same direction, and are connected for simultaneous rotation by means of stems 21, each rigidly secured to the smaller end of one valve and slidable in a seating 26 in the larger end of the adjacent valve. The caps 15, through which the valve stems pass, are provided with packing 25. Each valve is held on its seat by a spring 23 between a washer 22 and an element 24 secured to the stem 21. The stem 21 of the end valve is provided with a sprocket wheel driven from the main shaft at a quarter of the speed of that shaft. In the form shown in Fig. 5, a lubricant chamber 33 is provided 'between the smaller end of the valve and the housing and is supplied with lubricant by a pipe 35 provided with a check valve. A lubricant groove 38 in the housing is spaced from the chamber 33. The valve stem in this form passes through an aperture in the smaller end of the housing, packing 22<1> being provided.
Patent GB-348222-A (GB)
Title: Improved syringe for drenching sheep and other animals
IPC: A61D7/00
Filed: 1930-02-17
Abstract: 348,222. Syringes for drenching animals. DEMPSTER, H. R., Brookvale, Marlow, Braidwood, New South Wales, Australia. Feb. 17, 1930, No. 5225. [Class 81 (ii).] A syringe for drenching sheep is provided with a conical spiral spring 9 confined between the cylinder cap 5 and a collar 10 on the piston-rod so as to project the piston outwardly. On the forward stroke of the piston the spring is compressed into the form of a coniod disc which is received in a recess 11 in the cap 5. The cap is formed with finger rings 12, 13 and the end of the piston-rod is either bent at an angle, as shown, or is formed with a ring. Liquid is supplied from an elevated reservoir, which may be in the form of a haversack, through a flexible tube 8 and the hollow piston-rod 7. The piston and the nozzle of the syringe are fitted with non-return valves 17, 20, and the piston is fitted with a two-way leather washer 14. The barrel comprises a metal casing 1 within which a glass lining 2 is secured between the caps 5, 6, rubber packing washers 3, 4 being provided.
Patent GB-372836-A (GB)
Title: Improvements in or relating to the production of concentrated india rubber latex
IPC: C08C1/10
Filed: 1931-02-19
Abstract: Ammonia-free concentrated latex is prepared from latex treated with ammonia by subjecting the latex to centrifugal action and then adding caustic alkali, soap, or other alkali derivative of a colloidal substance, or one or more salts of the alkaline metals which at 25 DEG  C. in deci-normal solution are hydrolysed to the extent of 0,1 per cent, and heating the mixture under such conditions that concentration is not effected.  The alkaline salts imay be added alone or in addition to the other ingredients mentioned above. Examples are sodium carbonate, sodium phosphate, potassium carbonate and potassium phosphate.  Concentration of the latex during heating is avoided by adding water to compensate for any loss on evaporation. The concentrated ammonia preserved latex may be further concentrated, e.g. by evaporation with heat with or without reduced pressure prior to alkali treatment.  The concentrate may be compounded with any of the known fillers &c., which may be added in the dry state or as dispersions. Specifications 219,635 and 319,410, [both in Class 70, Indiarubber &c.], are referred to.
Patent GB-750282-A (GB)
Title: Fluid-pressure actuated apparatus
IPC: F15B11/22
Filed: 1954-02-23
Abstract: 750,282. Forging-presses. CHAMBERS-BURG ENGINEERING CO. Feb. 23, 1954 [May 26, 1953], No. 5243/54. Class 83 (4). [Also in Group XXVI] A fluid-pressure operated apparatus particularly an impact forging press, has a pair of coaxial rams 13, 14, movable towards and away from each other by pressure fluid supplied to their respective cylinders 11, 12, and means 56, 57 are provided for detecting lack of synchronism in the movements of the rams and for controlling interconnected correcting valves 35, 38 which vary differentially the flow of pressure fluid to and/or from the cylinders so as to restore synchronism. The press rams carry doubleacting pistons 15, 16 operated by compressed air distributed to either end of the cylinders through passages 23, 24 by distributing valves 27, 28 remotely controlled by a lever 41 through transmitters 39, 40 and receivers 42, 43, which may be hydraulic or electric. A one-way valve 30 communicating with the passage 23 through duct 29 allows the air to enter the outer end of each cylinder to initiate the working stroke and permits air to be trapped in the end of the cylinder to cushion the return stroke. Throttle valves 34, 37 in the supply lines are remotely controlled by a lever 46 through transmitters 44, 45 and receivers 47, 48; these valves regulate the speed of the rams. Forging dies 19, 20 are mounted respectively in heads 17, 18 having cam surfaces 60, 61, co-operating with the detecting levers 56, 57 pivoted on fixed pivots 58, 59. These levers are connected by spring-loaded links 62, 63 to the opposite ends of a rocker arm 54 pivoted at 55 on a swinging arm 50 mounted on a stationary pivot 51 and connected at 52 to a link 49 interconnecting the correcting valves 35, 38. When the rams are in phase the rocker arm 54 moves about its pivot 55 without disturbing the arm 50 but if the rams are out of phase the forces on the rocker arm are unbalanced and cause the arm 50 to swing about its pivot 51 thereby to regulate the correcting valves 35, 38, and restore synchronism. These correcting valves may be in the inlet or exhaust passages 23 or 24 or separate interconnected valves may be provided in both the inlet and exhaust passages, Fig. 8 (not shown).
Patent GB-387138-A (GB)
Title: Improvements in or relating to electrically operated valves for fluids such as gas
IPC: F23Q3/00
Filed: 1932-02-22
Abstract: 387,138. Electrically-actuated valves. JUCHHEIM, E. and JUCHHEIM, W., (trading as JUCHHEIM, H.), 46, Wiesenweg, Ilmenau, Germany. Feb. 22, 1932, No. 5249. Convention date, Nov. 19, 1931. [Class 135.] An electrically-actuated gas valve comprises a movable plunger 2 of non-magnetic material, such as glass, having a shell or mantle 3 of magnetic material freely movable within a glass casing 1 which is formed with a seating 5 for a closure surface 4 on the valve plunger 2. The casing is surrounded by a solenoid coil 7, as shown. In the open position the valve plunger 2 rests on a grid 6.
Patent GB-1465544-A (GB)
Title: Catheter package
IPC: A61M25/00
Filed: 1974-02-05
Abstract: 1465544 Packaging laminates INTERNATIONAL PAPER CO 5 Feb 1974 [2 March 1973] 5271/74 Heading B5N [Also in Divisions A5 and B8] A pouch 17 comprises laminated upper and lower sections 31, 30 respectively each having an interior thermoplastic layer, 37 of polypropylene, 35 of polyethylene respectively and an exterior gas impermeable, e.g. aluminium foil, layer 38, 36 respectively. In an alternative embodiment, Fig. 6, the pouch sections 61, 62 each have four layers, 63-66, 67-70 respectively the interior two layers of each section, 63, 64, 67, 68 being the same as those of pouch 17, and each gas-impermeable layer 64, 68 having a heat-insulating layer 66, 70 of "Mylar" (Registered Trade Mark), respectively bonded thereto by a polyethylene layer 65, 69 respectively.
Patent GB-565510-A (GB)
Title: Improvements relating to gas meters
IPC: G01F3/22
Filed: 1943-04-03
Abstract: 565,510. Gas meters. ROBINSON & CO. (LIVERPOOL), Ltd., J. H., ORMEROD, G. A., and SMITH, A. April 3, 1943, No. 5370. [Class 54] The slide valves 16 of gas meters are of normal external width a but the internal width b of the transfer passage 18 is increased relatively to the valve grids so that in the mid-position the admission ports 13, 14 are, in addition to being sealed from the gas supply, in communication with the delivery port 15. The valves and ports are arranged as described in Specification 548,691.
Patent GB-703275-A (GB)
Title: Improvements in electrical sound recording apparatus
IPC: H04R15/00
Filed: 1951-03-06
Abstract: 703,275. Phonographic recorders. SYKES, A. F. April 8, 1952 [March 6, 1951], No. 5412/51. Addition to 650,769. Class 40 (4) The parent Specification relates to sound recording apparatus comprising a pair of magneto-strictive rods adapted to contract and expand in anti-phase, the one pair of ends being anchored to a structure while the other ends are in close proximity and drive a stylus carrier. The present invention is characterised in that the magnetostrictive cores are slotted and the free ends operate a lever driving the stylus. The magneto-strictive rods 10, 10a are anchored at 1 to an inertia block 12 free to swing about axis 24 with respect to a feed carriage or tone arm. The free ends of the rods carry cappings 4 which transmit the anti-phase vibrations through rods 15 to a stylus lever 18 mounted in a spring- pressed swinging gate 5. The free ends of the rods ride on rollers 136 against which they are pressed by springs 2. The free ends of the rods are provided at 19 with very fine air-gaps and to prevent saturation of the cores near the base; they may be made wedge-shaped. For hill-and-dale recording, the cappings may be offset as in Fig. VI to give a vertical oscillation to the stylus. The depth of cut may be varied by adjustment of the height of ball 30. The stylus may be mounted on a hole, vee and plane method, Fig. IV, or may be operated through a compound lever system, Fig. VII. Specifications 650,808, 650,809 and 686,777, [Group XXXIV], are referred to.
Patent GB-291159-A (GB)
Title: Improvements in or relating to electrically driven vehicles
IPC: B61C9/38
Filed: 1927-02-28
Abstract: 291,159. Fletcher, G. H., Tustin, A., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 28, 1927. Gearing for permitting flexure and distortion.- A quill shaft 5 is driven by a worm 17 and wheel 11 from the motor shaft 13 which is supported in bearings 14, 15, 16 in the motor casing 1. The bearings of the shaft 5 are also carried by the casing. The shaft 5 is coupled to the wheel axle 2 or to the wheels by a flexible or universal coupling, which may be of the form described in Specification 239,342, [Class 80 (iii), Linkwork &c.], and may be contained in the worm gear casing. The latter may have a detachable portion 21. In a modified arrangement the shaft 13 passes below the worm wheel and axle.
Patent GB-739453-A (GB)
Title: Improvements in percussion tools having a reciprocable hammer piston actuated by combustion gases
IPC: E21B6/08
Filed: 1954-02-26
Abstract: 739,453. Percussive tools. AKTIEBOLAGET ATLAS DIESEL. Feb. 26, 1954 [March 2, 1953], No. 5750/54. Class 124. An internal-combustion engine operated percussive tool having a hammer piston, the return stroke of which is produced by pressure air or gas; and automatic means for rotating the bit, has a device for simultaneously preventing the rotation of the bit and preventing the production of the return stroke of the hammer piston. As shown, a hammer piston 30 of the differential type has its large diameter operating in a cylinder 35 to which compressed exhaust gas is supplied from a chamber 28 through a port 34 to produce upward movement of the piston. The chamber 28 may be supplied with compressed gas from a compression chamber 25 wherein operates a motor piston 17, 18. A ratchet and pawl mechanism operated by a rod 50 connected to a crankshaft 3 provides rotation of the bit 41. A valve member 55, Fig. 5, rotatably mounted in the lower casing 8 has three positions, in one of which the chamber 28 is vented to atmosphere and the upward movement of the piston 30 prevented and at the same time the pawl is held out of its operative position and rotation of the bit is also prevented, in a second position the pawl is maintained out of operative position but the chamber 28 is not vented to atmosphere and the hammer piston may operate, and in the third position both rotation of the bit and operation of the piston are permitted. Some gas from the chamber 28 may pass by way of a valve 44 to a chamber 38 and thence through a bore 45 to the hollow bit for clearing the borehole.
Patent GB-102780-A (GB)
Title: Improvements in Means for Binding Books.
Inventor: KRAJEWSKI STANISLAS
IPC: B42D1/06
Filed: 1916-04-20
Abstract: 102,780. Krajewski, S. April 20, 1916. Bookbinding. - The sheets are attached by wires to a cylinder of wood or metal, Fig. 1. The axle of the cylinder is supported in brackets c, c<1>, Fig. 4, standing up from the back of the cover, which is of metal, leather, or pasteboard covered with paper, silk, &c. Parts d, d<1>, d<2> project from one edge of the cover, and a lock may be provided in the centre of the part d'.
Patent GB-1205532-A (GB)
Title: A process of preparing block copolymers
Inventor: MARE HAROLD ELISON DE LA
IPC: C08G81/02
Filed: 1969-02-04
Abstract: 1,205,532. Block copolymers by coupling reaction. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 4 Feb., 1969 [6 Feb., 1968], No. 5820/69. Heading C3P. A block copolymer is obtained by reacting a lithium terminated block polymer of formula (A-B) n -Li in which A is a polymer of a monoalkenyl aromatic hydrocarbon and B is a polymer of an aliphatic conjugated diene hydrocarbon, and n is an integer, preferably 1, with a diester of a dicarboxylic acid with a monhydric alcohol or phenol. The initial polymer is obtained by sequential polymerization in the presence of an organo-monolithium initiator, the diester is used in amounts of 0.25 to 5À0 mols per lithium radical and the reaction may be terminated by removal of lithium atoms. The products are mainly trimers or tetramers of the initial polymer. In examples, styrene and butadiene are polymerized using s-butyllithium and the initial block polymer reacted with diethyl adipate, dimethylitaconate, or diethyl oxalate.
Patent GB-469724-A (GB)
Title: Plant and process for the production of bisulphite solutions
IPC: D21C3/08
Filed: 1937-02-27
Abstract: Solutions of calcium bisulphite are produced in apparatus comprising a "weak acid" tower 2 and a "strong acid" tower 3, Fig. 1, the lumps of limestone passing from the tower 2 being deflected laterally in the tower 3 so that sprinklers 19 may be inserted above the limestone in the lower tower.  Sulphur dioxide is supplied to the towers from a pipe 14 and water to the tower 2 from sprinklers 9, whilst liquor collecting at the base of tower 3 is circulated by pump 17, pipe 18, and sprinklers 19 through the lower tower.  By regulating the circulation by pump 17 a bisulphite solution of predetermined composition may be obtained, and by further regulating the quantity of sulphur dioxide supplied, complete absorption thereof in the tower 2 may be secured.  Limestone used in the process may be replaced by dolomite.  The SO2 content of the liquor may be increased by passing it through towers 25, 26, Fig. 1a, preferably filled with inert material, sulphur dioxide being supplied by pipe 31, and liquor collecting at the base of tower 26 being circulated by pump 33, pipes 34, and sprinklers 35 through <PICT:0469724/III/1> <PICT:0469724/III/2> the lower tower.  Excess SO2 from the tower 25 may be fed to the towers 3, 2.  The apparatus shown in Fig. 1 may be worked separately from or together with that of Fig. 1a by suitable adjustment of the valves shown.
Patent GB-123869-A (GB)
Title: Improvements in or relating to Furnace Fire Grates.
Inventor: THOMPSON ALFRED
IPC: F23H9/00
Filed: 1918-04-09
Abstract: 123,869. Thompson, A. April 9, 1918. Grates.-Rocking fire-bars are connected together by links 9, Fig. 3, in sets of three, the centre bar of each set being prolonged to the front of the furnace, as shown in Fig. 2, so that it may be rocked by a lever. The bars are mounted in bearings 7 suspended beneath plates 11, 12 at the front and back, these plates serving to support fire-brick linings and being thus protected from the heat of the furnace. Locking- pins 19 are provided to hold the centre bars in their mid-positions.
Patent GB-546774-A (GB)
Title: Half-wave velocity modulation electron discharge tube
IPC: H01J25/18
Filed: 1941-05-09
Abstract: 546,774. Electron velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. May 9, 1941, No. 6026. Convention date, July 16, 1940. [Classes 39 (i) and 40 (iii)] An ultra high frequency velocity modulated discharge tube is formed of concentric tubes 1, 2, Fig. 3, which form a single resonator chamber C between them; the electron flow is through holes a from the cathode to the collator 15, annular adjustable blocks 9, 9a permitting tuning. Glass closures 20, 201 are provided to the chambers. In another form which can be used as an oscillation generator or amplifier two annular resonant chambers A, C, Fig. 1, are provided between pairs of cylinders 3, 4 and 1, 2, the drift space being in the space B between the cylinders 2, 3; tuning adjustment is by annular blocks 9, 10. Tuning means may be provided within the chamber B. Electrons from a central cathode 11 pass through a grid formed by sets of rods 5, 6, 7 and 8 ; the cylinders may extend at some places across the beam path, the rods being at these points and the cathode is activated only over part of its surface. In a modification of this form only three cylinders 1, 31, 4, Fig. 2, are used to form the two resonator chambers A, C, the inner ends of the cylinders being reduced to provide a drift space; the grids are formed by sets of rings 25 ... 28. The vitreous closures 19, 20, 22 in either form may be on the inside of the cylinders closing the resonators entirely. The tuning adjustment is by the annular blocks which may be mounted on bellows; movable blocks may be at both ends of the cylinders. The full length of the cylinders corresponds to one half wave length. The cylinders may be square or elliptical. The collector electrodes 15 is at a lower positive potential than the cylinders which act as accelerators. Specifications 534,696 and 575,123 are referred to.
Patent GB-955231-A (GB)
Title: Process for the production of n-acyl homocystein thiolactones
IPC: C07D333/36
Filed: 1962-02-16
Abstract: N-acyl-homocystein thiolactones are prepared by demethylating N-acyl-methionines by reaction with an alkali metal and liquid ammonia and then cyclizing the resulting N-acyl-homocysteins. The cyclization is preferably effected by heating in an acid medium. Examples describe the preparation of N-acetyl-homocystein thiolactone.
Patent GB-1068222-A (GB)
Title: Miniature rectifiers
IPC: H01L25/03
Filed: 1966-02-11
Abstract: 1,068,222. Dry plate rectifiers. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Feb. 11, 1966 [Feb. 12, 1965], No. 6089/66. Heading H1K. Two or more stacks of dry rectifier plates together with their terminal means are supported and held together in parallel to their direction of stacking by means of a common resilient clamp (1), the entire assembly being attached to a mounting and cooling plate (5) with the aid of a U-shaped yoke (2) the ends of which engage resiliently in recesses in the plate. The clamp is also U-shaped and may be made of metal or plastic material, one of the limbs being subdivided into as many individual fingers as there are stacks of plates so that each stack is gripped independently of the others. The terminal means is in the form of plates which may bridge the stacks and are provided with terminal lugs (6) protruding from the stacks. The assembly may be encapsulated in moulded resin.
Patent GB-136408-A (GB)
Title: Improvements relating to Perambulators.
Inventor: MIDDLETON ALBERT
IPC: B62B9/12
Filed: 1919-03-12
Abstract: 136,408. Middleton, A., and Foreman, P. W. March 12, 1919. Draught and push bars.-The handle-bar b of a perambulator is pivoted at or about the middle of the frame c, so that it may be reversed, and is secured in either position by a catch frame f, the ends e of which engage sockets d on the handlebar. Each frame f is of rectangular form, pivoted at f<1> and having a transverse bar at f<11>, by the depression of which the frame is disengaged from the handle. Springs h hold the catch frames in the engaged position.