baber/WOPTO huggingface dataset:
Patent GB-347338-A (GB)
Title: Improvements in or relating to electric switching apparatus
IPC: H01H71/24
Filed: 1930-02-07
Abstract: 347,338. Switching systems for consuming devices. GRASEBY, R. C., 45, Horseferry Road, London. Feb. 7, 1930, No. 4181. [Class 38 (iv).] Apparatus to disconnect a steady load such as a water heater when a second apparatus used intermittently and having a plurality of consuming circuits is switched on comprises a mercury switch 1, shown in the Figure, having contacts connected to the terminals 2, 3 of a steady load, and mounted in a pivoted frame carrying a lever 6 held by a spring 23 so that the circuit 23 is closed. The lever 6 is connected bv links to an armature 9 of an electromagnet with core 11 having a shaded pole 12 as described in Specification 343,239. Magnetizing coils 14 .. 17 each connected in the circuit of one of a number of consuming devices in the second apparatus, attract the armature 9 when one of the consuming circuits is closed to tilt the switch 1 and break the steady load circuit. The Provisional Specification refers to a change-over switch in place of the single throw mercury switch which makes the circuit of the second apparatus when one of the consuming circuits is switched on.
Patent GB-247737-A (GB)
Title: Improvements in and relating to chicken feeding troughs
IPC: A01K39/014
Filed: 1925-02-16
Abstract: 247,737. Washington, P. Feb. 16, 1925. Feeding-appliances for animals. - A chicken feeding trough 1 has its upper edges 3 inturned and a bar 4 is arranged lengthwise of the trough slightly above the level of the inturned edges. The ends of the trough are closed by transverse plates 2 to which are secured sockets 5 for rightangled extensions 4a on the bar 4. The height of the bar is adjusted in accordance, with the age of the chickens using the trough. In a modification the ends of the bar 4 extend through vertical slots in the end plate 2 and the bar is clamped by wing nuts on these plates after being adjusted to the desired height.
Patent GB-1104143-A (GB)
Title: Calculating machine
IPC: G06C7/10
Filed: 1967-01-30
Abstract: 1,104,143. Calculating machines. H. G. CARLSEN, and E. A. CARLSEN. 30 Jan., 1967 [7 Feb., 1966], No. 4375/67. Heading G4B. A calculating machine comprising a pin carriage 1, a transfer bar 3, and pinion 4, is characterized in that the transfer bar carries an abutment 7 and the pin carriage is movable in a substantially vertical direction whereby a member may be entered in the pin carriage from the pinion 4. In operation, the pinion is lifted to engage the transfer bar and returned to zero by movement of the transfer bar to the right. The pinion is arrested in its zero position by co-operating stops 10, 11. The pin carriage is raised whereby the abutment 7 displaces a pin.
Patent GB-1361098-A (GB)
Title: Control circuits for thyristors
IPC: H01L27/07
Filed: 1972-01-31
Abstract: 1361098 Control systems for consuming devices GENERAL ELECTRIC CO 31 Jan 1972 [12 Feb 1971] 4397/72 Heading H2H [Also in Divisions H1 and H3] In a circuit wherein the current flowing in a load 6 is controlled by means of a triac 8, the trigger pulse for the gate 12 of the triac being produced by a capacitor 14, charged by way of a variable resistor 16 and a breakdown device 10 has the device 10 formed as a monolithic structure which comprises two pairs of complementary transistors Q 1 , Q 2  and Q 3 , Q 4 , a plurality of Zener diodes, say D 1 , D 2 , D 3  and a pair of resistors R 1 , R 2 . In operation, as the capacitor 14 charges the device 10 is initially non-conductive and thus presents a high impedance between terminals 15 and 12. When the capacitor acquires a voltage at terminal 15 equal to the breakdown voltage of Zener diode D 1  and the forward bias voltage of the base-emitter junction of transistor Q 2 , the pair of transistors Q 1 , Q 2  become regenerative in the PNPN mode thus going into a high conduction state whereupon the device 10 presents a low impedance between terminals 15, 12. Capacitor 14 then discharges through the device 10 into the gate of the thyristor to cause turn-on thereof. In opposite half cycles of the applied A.C. when the capacitor 14 chargeswith the opposite polarity the transistors Q 3 , Q 4  function as the regenerative switching pair. With a trigger control device 10 of the kind shown in Fig. 6 the Zener diode D 3  ensures that the capacitor 14 only discharges in alternate half cycles to the breakdown voltage of the diode, thus ensuring that the triac 8 fires at the identical point in every half cycle of the A.C. supply.
Patent GB-1492163-A (GB)
Title: Triazolobenzocycloalkylthiadiazine derivatives
IPC: C07C45/63
Filed: 1976-02-05
Abstract: 1492163 Triazolobenzocycloalkylthiadiazines RICHARDSON-MERRELL Inc 5 Feb 1976 [28 April 1975] 04487/76 Heading C2C Novel compounds I in which each of R 1 , R 2  and R 3  is H, C 1-4  alkyl or C 1-4  alkoxy, R 4  is H or C 1-4  alkyl, R 5  is C 1-4  alkyl and A is a sigma bond or a methylene group, and pharmaceutically acceptable acid addition salts thereof, are prepared by reacting compounds II with compounds III in which X is Cl, Br or I. Compounds II are prepared by halogenating the corresponding 1-indanones and 1-tetralones. The iodo compounds are prepared by reacting the corresponding chloro and bromo compounds with NaI or KI. Compounds III are prepared by reacting thiocarbohydrazide with a carboxylic acid of formula R 5 COOH. Pharmaceutical compositions having CNS antidepressant activity for oral or parenteral administration, comprise a compound I together with a pharmaceutical carrier.
Patent GB-342540-A (GB)
Title: Improvements in the construction of glass annealing furnaces
IPC: C03B25/06
Filed: 1930-02-10
Abstract: 342,540. Glass manufacture. BRANCART, Y., Verrieres de Fauquez, RonquiÞres, Belgium. Feb. 10, 1930, No. 4501. Convention date, Feb. 14, 1929. Drawings to Specification. [Class 56.] Annealing.-In a sheet or plate glass annealing furnace or leer, the sole plate, on which the sheet from the casting-table is placed to set before it is passed to the leer conveyer, is given a slight transverse concavity over part of its length to compensate for the tendency of the sheet to curve during cooling. The sole plate is made up of blocks resiliently pressed into contact, so that it can expand and contract without leaving widened joints.
Patent GB-412683-A (GB)
Title: Improvements in or relating to envelopes
IPC: B65D27/22
Filed: 1933-02-14
Abstract: 412,683. Envelopes. BULL, F. W., 19, Water Lane, Ludgate Hill, London. Feb. 14, 1933, No. 4558. [Class 146 (ii).] A device for retaining the sealing flap of an envelope in the closing position, but permitting of the withdrawal of the flap, comprises a slit member secured or adapted to be secured by adhesive to the back of the envelope, whereby the slit can be engaged by the sealing flap. In the case of an envelope provided with a square closing flap b, the flap-retaining member a is provided with an upwardly curved slit d forming a tongue behind which the flap b is inserted. The member a is attached to the back of the envelope by gummed edges e. In the case of an envelope provided with a triangular closing flap, a straight horizontal slit is formed in the flap-retaining member for the reception of the closing flap, and, in addition to the sides, the retaining member may be gummed over its lower surface, but leaving an ungummed portion under which the flap may be inserted. To facilitate application, the retaining member may be placed in position on the closing flap, damped, and then folded over with the flap on to the back of the envelope.
Patent GB-256712-A (GB)
Title: A new and improved appliance for the treatment of rupture
IPC: A61F5/24
Filed: 1925-10-02
Abstract: 256,712. Dilley, I. Oct. 2, 1925. Trusses.-Truss pads for single rupture, double rupture and for use by females are of the forms shown in Figs. 1, 2 and 3 respectively, in each case comprising a flat side A and a loop or loops B of leather on the other side to receive a webbing belt. The pads are of rubber covered with leather.
Patent GB-348572-A (GB)
Title: Improvements in infusing or cooking apparatus
IPC: A47G19/14
Filed: 1930-02-11
Abstract: 348,572. Infusers. GREEN, A. N., 131, Wigmore Street, London. Feb. 11, 1930, No. 4586. [Class 129.] An infuser A is supported in the raised or lowered position by a chain C, D from a spring support B the ends of which hook over a ledge H formed on the container. The infuser is supported in the lower position by the ring K, and in the raised position, the links C, D lie flat on the support B with which the hook L engages.
Patent GB-875936-A (GB)
Title: Improvements in or relating to braking equipment for railway vehicles
IPC: B61H13/32
Filed: 1959-02-10
Abstract: 875,936. Variable leverage brake mechanisms. SVENSKA AKTIEBOLAGET BROMSREGULATOR. Feb. 10, 1959 [Feb. 24, 1958], No. 4635/59. Class 103 (1). Railway vehicle braking equipment comprises, in the brake rigging, a reversing lever 9 disposed in a housing 23 and coacting with a fulcrum 13 displaceable along a track 14 in the housing under the control of mechanism operating automatically in dependance on the load carried by the vehicle, the live lever 5a of a pair of equalizing levers 5, 5a being connected by a push-rod 10 to the reversing lever 9 for transmitting the brake power from source 8, the dead lever 5 being anchored to the housing 23 by a pair of links 24, Fig. 3, to which the push-rod 10 is slidably connected. Two levers 17, 18 are connected by rods 15, 16 to the vehicle springs such that the spring of the wheel axle carrying the smallest load transmits a force through a tie-rod 19, pivoted to lever 17 at 39, to load a spring 20 mounted on rod 19 between collar 36 and housing 23, to move the fulcrum 13 through linkage 42, 43, 44. The lever 18 is pivoted at 37 to a housing bracket 38 forming a guide for rod 19. The reversing lever 9 is moved by brake cylinder 8 to pivot about fulcrum 13 and move push-rod 10 pivoted at 26 to lever 5a to apply the brakes through lever 5, 5a and rods 30, 31. A slot 12 in rod 10 slides on a pin 11 by which the lever 5 is attached to links 24, Fig. 3, which are pivotally mounted by pins 28 to housing brackets 27. A return spring 32 for the rigging surrounds rod 10 between shoulders 34 on links 24 and a support 33 on rod 10 which may be in two relatively displaceable parts 10a and 10c, the part 10c being inserted through a transversely movable seal 230 into the housing to slide over part 10a and engage its cross-head 10b on braking. The brake may be applied manually through connection 400, Fig. 2.
Patent GB-191306-A (GB)
Title: Improvements relating to the checking of loom shuttles
IPC: D03D49/36
Filed: 1922-02-17
Abstract: 191,306. Shaw, J. Feb. 17, 1922. Checking shuttles and pickers.-To prevent the rebounding of the shuttle from a shuttle-box in which the swells are arranged at the front, a sliding stud A mounted in the box-end and forced outwardly by a spring L, engages a bowl K on a lever B pivoted to the lay and connected to the usual check band C.
Patent GB-1179762-A (GB)
Title: Improvements in or relating to Gear Pumps an Motors
IPC: F04C15/00
Filed: 1967-02-01
Abstract: 1,179,762. Rotary positive-displacement pumps and motors. NARADI, NARODNI PODNIK. Feb.1 1967 [Feb.8, 1966], No.4895/67. Heading F1F. A rotary positive-displacement hydraulic pump, or motor, of the externally-meshing gear-type has shafts 7, 7' for gear-wheels 10, 10' lodged in bearing bushes that are axially and radially pressure-loaded to minimize leakage of working fluid e.g.. oil, between the high-pressure low-pressure sides, each bush including two separate segments 8, 9, or 8', 9', with gaps 25, 27, 25a, 27a, or 25', 27', 25'a, 27'a, therebetween. Pistons 23, 23a, or 23', 23'a in the segments 8, 8' are pressed against a housing 1, so that these segments are urged towards the shafts, while the segments 9, 9' are pressed against the ends of the gear-wheels by the pressure of the working fluid on the high-pressure side communicated to recesses 16, 16' through ducts 17, 17' from which said pressure is also transmitted to the pistons by way of passages 15c, 15c' and ducts 20, 20'. The segments 8, 8' are thinned at their centres whereby (as a consequence of these segments being urged towards the shafts) the gear-wheels are pressed against the housing in regions on the high-pressure side between grooves 13, 13'. Pistons 15, 15' in the segments 9, 9' are subject to pressure through the passages 15c, 15c' so that these segments are biased towards the aforementioned regions. The grooves 13, 13' facilitate escape of leakage fluid from the gaps aforesaid gaps 26, 26', and grooves 24, 24' in the segments 9, 9', which grooves are traps for fluid leaking from the high-pressure side. The leakage fluid in the various gaps beforementioned lubricates the shafts. Recesses 9a, 9a' and 18, 18' minimize cavitation in the gear-tooth spaces and compression of fluid between the intermeshing gear-teeth, respectively.
Patent GB-1418264-A (GB)
Title: Apparatus for conveying material
IPC: B65G63/00
Filed: 1974-02-04
Abstract: 1418264 Conveying concrete mix ROTEC INDUSTRIES Inc 4 Feb 1974 [4 June 1973] 04953/74 Heading B8A Concrete mix is conveyed from a vehicle 11 via conveyers 10 and 40 to an elevated location on a building. The mix may be discharged from a shoot 64 at the end of the conveyr 40 or it may be ploughed off into a shoot 92 by a device 80 having an inclined blade 81 (Fig. 9). The device 80 has a motor 84 to drive it along relative to the conveyer framework. Rollers 91 and 87  train the belt from trough to planar shape in the ploughing zone of the blade 81. The latter is arcuate in cross-section (Fig. 11, not shown) and is loaded vertically downwardly by springs 83 The conveyer 40 is braced by a girder 51 having its lattice framework disposed in a horizontal plane. Cables 56 (connected to the outer edge of the lattice) and 57 (connected to an L-shaped frame member rigid with a platform supporting the conveyer) are connected to'a single cable 61 passing down from a gib-like girder 4. The frame of the conveyer 40 includes longitudinally spaced laterally extending V-shaped members 47 on a central portion 48 of which is mounted a rotatable member 49. The latter carries troughing rollers 44, and members 46 which have upwardly turned end portions. When the belt moves laterally under the action of the discharge blade 81, the edge engages one or other upwardly turned end portion of the respective member 46, and causes the troughing rollers 44 to tilt in a direction to counteract the belt's lateral movement. The upper end of the conveyer 10 is pivotally mounted about a horizontal axis on a frame 70, which itself is pivotally mounted about a vertical axis bearing 32 on a platform 25 (Figs. 4 and 6). There are alternative bearing points 30 and 31 (Fig. 4) which may be selected in place of the bearing 32 according to the positional adjustment required. The platform 25 is clamped to the side of a vertical tower 3 on which the gib 4 is mounted. The height of the platform 25 on this tower 3 may be adjusted. A shoot 20 connects the conveyers 10 and 40. By adjusting cables 7, the height of the jib (and thus the conveyer 40) may be adjusted.
Patent GB-1102368-A (GB)
Title: Melt-spinning of polymers
Inventor: PERELMAN ARTHUR
IPC: D01D1/10
Filed: 1966-02-04
Abstract: 1,102,368. Filtering molten polymer. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Jan., 1967, [4 Feb., 1966], No. 5016/66. Heading B5B. In a process for melt spinning filaments or melt extruding films molten polymer is filtered through a filter medium comprising at least three filters 4 operating in parallel, the combined flow from the filters being used to feed at least one spinneret or slit, the flow of polymer to any one of the filters being terminable so as to facilitate replacement of the said filter. A first valve 3, is disposed before each filter said valve having three positions, fully open, closed, and partially open to allow a restricted amount of polymer through. A second valve, 5 disposed after each filter and before the flow from each filter is combined can be fully open or can be adapted so that the flow from said filter is diverted to waste. In the latter position the valve simultaneously allows a small flow to waste from the manifold 6, in which the flows from the various filters are combined. The combined polymer flow may be passed through a heat exchanger before passing to the spinneret(s) or slit(s).
Patent GB-395442-A (GB)
Title: Employment of a hinge for obtaining flexibility of formwork for concrete construction in straight alignment or in curvature
IPC: E01C19/50
Filed: 1932-02-20
Abstract: 395,442. Edge moulds for concrete road constructions. GRANT, A., Arnwood, Kingscroft Road, Leatherhead, Surrey. Feb. 20, 1932, No. 5079. [Class 20 (ii).] Panel moulds f<1>, f<2>, in short lengths, are provided with interfitting hinge portions on their ends through which an anchoring pin p passes to position and secure the moulds. The hinge portions are so shaped that a continuous moulding surface is presented, whatever the angle the moulds are disposed at to each other in forming curved edges.
Patent GB-1468302-A (GB)
Title: Method of joining members of dissimilar metals
IPC: B23K15/00
Filed: 1975-02-06
Abstract: 1468302 Stator blade fixing HITACHI Ltd 6 Feb 1975 [8 Feb 1974] 5108/75 Heading FIT [Also in Division B3]  In fabricating a turbine diaphragm comprising blades 3 and inner and outer rims 1, 2, wherein the blades and rims are of dissimilar metals, intermediate U-cross-sectioned rings 7 of metal similar to or the same as that of the rims 1, 2 are interposed between the blades and respective rims, the blade ends are inserted into openings 11 in the rings 7, the openings 11 are filled up at 8 by submerged arc welding deposition of a first metal, as described, the same as that of the rims 1, 2, layers 9 of a second metal similar to that of said rims are MIG or TIG deposited over the metal at 8, the exposed surfaces of the layers 9 are machined at 10a, and the rims 1, 2 are electron beam welded to said layers 9. The MIG or TIG deposition of the layers 9, using, e.g. argon of 99.9% purity, results in the oxygen content of said layer being similar to that of the rims, e.g. less than 100 PPM, so as to avoid seam deflection and blow holes or cracks during electron beam welding. The blades may be of 13% Cr steel and the rims 1, 2 of carbon or low alloy steel, e.g. 1% Cr, 0À5% Mo; 2% Cr, 1% Mo. The openings 11 may be formed by spark or electrolytic machining. Annealing may interpose the submerged arc and MIG or TIG steps.
Patent GB-418269-A (GB)
Title: Improvements in or relating to the production of titanium compounds
IPC: C01G23/08
Filed: 1934-02-16
Abstract: Titanium oxygen compounds, for instance the hydrated oxide, alone or in the presence of extenders such as barium sulphate, gypsum, or china clay, are scattered in the form of fine particles, and subjected to calcination say at 80--1100 DEG  C. whilst in a scattered state.  The particles may be suspended in a gas stream, and several methods of suspension are described.  Prior to calcination, sulphuric acid may be removed from hydrated titanium oxide in known ways, and calcination may take place in the presence of a small quantity of a salt fusible at the calcining temperature or of phosphoric acid, or of a phosphate such as calcium or barium phosphate.  An aqueous pulp of the titanium compound may be used directly, or after drying.  The Specification as open to inspection under Sect. 91, refers also to the calcination of titanates of the alkaline-earth metals, lead, zinc, or magnesium, alone or associated with extenders. This subject-matter does not appear in the Specification as accepted.
Patent GB-755443-A (GB)
Title: Process and machine for cutting fillets from fish
IPC: A22C25/16
Filed: 1954-02-23
Abstract: 755,443. Fish, filleting. AKTIESELSKABET ATLAS. Feb. 23, 1954 [March 7, 1953], No. 5254/54. Class 28(2). Cleaned and headed cod &c. are pushed tail first and belly down by endless chain pushers 7, a spike 10 on each entering the backbone to push the fish through top and bottom pairs of spaced filleting disc cutters 19 and 23. When the belly arrives between the cutters the top cutters tilt up clear of the fish, and subsequent cutting of the back and the belly flaps from the bone being done by sloping cutters 31, Fig. 5, spring pressed to cut through the back of the fish and also by moving apart, against spring bearings 53, to cut the flesh from the rib bones. The pushers 7 are thin enough to pass through the space between the disc cutters. Each pusher 7, Fig., 3, includes a table 8 on which the fish is carried through the various cutters, the table 8 having depending inclines 9 like a saddle to support the belly flaps. A fish placed on a fixed support 11 is engaged by the spike 10 and by the table 8, 9. After filleting cuts are made up to the beginning of the belly where the backbone cross section changes a cam lug 25, Fig.4,on the endless chain, tilts a lever, 28 about its fulcrum 27 to rock the top cutters 23 upwards. to clear the fish. The prismatic backbone at the belly end passes within a saddle-shaped guide 54, Fig. 5. The cutters 31 can swing freely outwards about pivot pins 55. The cut off fillets pass down a slide chute 51. The bare backbone is guided between two laterally expandable rods. The fish is held firmly ou the table 8; 9 during cutting by passing within resilient side plates 14 which when thus pressed apart operate levers 41 to cause top pressure plates 42 to bear down on the fish body. The cutting discs Fig. 6, have indentations 20 the base and side of which have continuous cutting edges 24 which are shaped and spaced to avoid cutting the backbone. The pairs of cutters 19 and 23 are mounted on spring pressed shafts so that they cut close to the backbone.
Patent GB-1411053-A (GB)
Title: Fuel injection valves
IPC: F02M51/06
Filed: 1973-02-02
Abstract: 1411053 Fuel injection valves ROBERT BOSCH GmbH 2 Feb 1973 [3 Feb 1972]  5259/73 Heading F1B An electromagnetic fuel injection valve for an I.C. engine comprises a fuel inlet 19, a needle 12 co-operative with a seat 15 to control nozzle opening 16, a spring 32 biasing the needle to close the opening and the end of the needle remote from the seat 15 being coupled to an armature 29 of an electromagnet energizable to open the valve. The needle 12 has a guide member 13 which separates a first control chamber 20 from a second control chamber 24 connected to it by a channel 25 and a restrictor 27, which increases the force tending to close the valve compared to a valve without the restrictor. In Fig.3 (not shown) the restrictor (27') is an interchangeable threaded part.
Patent GB-196142-A (GB)
Title: Improvements in plansifter, dresser, and other rotary machine driving mechanisms
IPC: F16C3/28
Filed: 1922-02-23
Abstract: 196,142. Robinson & Son, Ltd., T., Tweedale, J., and Robinson, C. J. Feb. 23, 1922. Machinery, utilizing inertia to obtain movements in.-Relates to the driving-mechanism of plan-sifters, dnesaem and other rotary and oscillatory machines which are worked by rotary cranks and balance-weights, and driven by a vertical freely-suspended shaft, and in which the crank-pin is adjustable radially ,in relation to the driving shaft. Fittings 5, 6, fixed to the driving shaft 1 and the crank-pin 4 respectively are arranged to engage and slide rectilinearly in relation to one another so as to vary the throw of the crank. A bolt 12 passes through holes in the fitting 6 and slots 13 in the sides of the fitting 5, while through the ends pass set-screws 14 which engage opposite sides of the bolt 12. By manipulating the screws 14, the position of the bolt and therefore the throw of the crank 4 can be adjusted, the parts then being locked 'by lock-nuts 15 on the set-screws.