baber/WOPTO huggingface dataset:
Patent GB-188460-A (GB)
Title: Method of rolling ribbons of brittle metals
IPC: B21B3/00
Filed: 1921-09-19
Abstract: 188,460. Boehm, W. Sept. 19, 1921. Rolling.-In rolling ribbons or thin laminations of brittle metals such as magnesium, perfectly cylindrical rollers are used.
Patent GB-462314-A (GB)
Title: Improvements relating to automatic electric cut-out devices
IPC: H02J7/14
Filed: 1935-09-06
Abstract: 462,314. Electromagnetic switches. C. A. V.-BOSCH, Ltd., and GLASER, W. H. Sept. 6, 1935, Nos. 24853 /35 and 865 /36. [Class 38 (v)] [Also in Group XXXV] An electromagnetically-operated cut-out for connecting a dynamo to a storage battery has arranged in parallel with its contacts a rectifier which itself is adapted to be arranged in series with the dynamo and battery, the rectifier being so connected that it allows current to flow freely from the dynamo to the battery. As shown in Fig. 1 the cut-out has the usual shunt and series windings d, e, the latter being brought into operation by closure of the cut-out contacts c. The rectifier f, which is preferably of the dry-plate type, is connected between the dynamo a and battery b in parallel with the cut-out the rectifier, being so connected as to permit current to flow freely from the dynamo to the battery. Thus current flows from the dynamo to the battery immediately the potential of the former exceeds that of the latter; and this current flow continues with increasing voltage of the dynamo until its voltage exceeds that of the battery sufficiently to operate the cut-out and close contacts c. Similarly with decreasing dynamo voltage current continues to flow from dynamo to battery after the cut-out has opened until the dynamo voltage falls below that of the battery. Thus a larger use of the dynamo is obtained and if the battery is being discharged, for example, through lamp circuits before the cut-out closes the presence of the rectifier is stated to minimise the potential difference that may exist between the dynamo and battery and so minimise the fluctuation in the brightness of lamps which may be in use at the instant the cut-out closes. To prevent slow leakage of the battery through the dynamo when the latter is at rest a switch g may be included in the rectifier circuit and may be operated simultaneously with the ignition switch. In a modified arrangement shown in Fig. 2 the shunt winding of the cut-out is dispensed with, a winding h being in series with the rectifier producing closure of the cut-out contacts when a predetermined current flow passes through the rectifier. The reduced current in this winding after the closure of the contacts assists the series coil in maintaining the cut-out in the closed position. Other arrangements are also described including a combination of the arrangements previously described and also an arrangement involving two successively actuated cut-outs. Instead of the switch g an electromagnetically-operated switch may be employed which automatically cuts the rectifier into circuit immediately the dynamo voltage rises above a predetermined low value.
Patent GB-1078590-A (GB)
Title: Projectile-trapping chamber
IPC: F41J13/00
Filed: 1966-06-03
Abstract: 1,078,590. Firing ranges. KLOCKNERWERKE A.G. June 3, 1966 [June 5, 1965], No. 24913/66. Heading F3X. A projectile-trapping chamber 2 for a firing range comprises a water tank situated below the line of the floor of a firing tunnel 1 of the firing range and above the water tank a ricochet layer of composite steel plates 5. The plates 5 are inclined at such an angle that a projectile entering the chamber 2 is deflected by the plates into the water tank. A collecting box 7 having a wire basket therein is provided in the floor of the water tank such that projectiles 15 lying in the tank may be pushed into the basket for clearing the tank. The chamber 2 is further provided with a pump chamber 6 having a sump 9, a water tank outlet pipe 8, and a water tank overflow 10.
Patent GB-239387-A (GB)
Title: Impregnating medium for electrodes
IPC: H05B31/10
Filed: 1924-10-20
Abstract: 239,387. Kahl, L., and R³tgerswerke Akt.-Ges. Oct. 20, 1924. Carbon.-Electrodes made with the help of a carbonaceous binder are, after firing, impregnated with molten pitch enriched by the addition of colloidal carbon. Air may first be removed from the electrodes, and pressure may be applied during impregnation.
Patent GB-933278-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J5/00
Filed: 1960-07-18
Abstract: The invention comprises the 18,20-lactone of 3,11-diketo-20b -hydroxy-5b -pregnan-18-oic acid, 3,11,18,20-tetraketo-5b -pregnane, and a process for the production of the 18,20-lactone of 3,11-diketo-20b -hydroxy-5b -pregnan-oic acid by oxidising 3a ,18,20b -trihydroxy-5b -pregnan-11-one.  The 18,20-lactone may subsequently be reduced with an alkali metal borohydride to obtain the 11,18 lactone of 3a ,11b ,20b -trihydroxy-5b -pregnan-18-oic acid. Specifications 892,078 and 933,276 are referred to.
Patent GB-925017-A (GB)
Title: Quaternary ammonium compounds and their preparation
Inventor: COPP FREDERICK CHARLES
Filed: 1959-07-21
Abstract: The invention comprises quaternary amine compounds of the formula: <FORM:0925017/IV(a)/1> wherein A is a cyclopentyl, cyclohexyl or cycloheptyl ring optionally bearing C1-C4 alkyl groups as substituents and R1 is an ethyl, hydroxyethyl, n-propyl, isopropyl or allyl group when NR2R3 is a dimethylamino or pyrrolidino group, or is a methyl group when R2 and R3 are ethyl or hydroxyethyl, and comprises also the preparation of these compounds by quaternizing the appropriate tertiary amine. The products suitably take the form of salts with halide, methylsulphate, sulphate or p-toluenesulphonate anions, obtainable by usual methods of salt formation and double decomposition.  Tertiary amines used as starting materials such as N-cyclohexylmethyl-N-ethyl-N-methylamine, N-cyclohexylmethyl-dimethylamine, N-cyclohexylmethylpyrrolidine, N-cyclopentylmethyl-dimethylamine, N-cycloheptylmethyl-dimethylamine and N-cycloheptylmethyl-N-hydroxyethyl-methylamine are made by treating the appropriate secondary amine with a cycloalkylmethyl bromide.  N-2-methylcyclohexylmethyl-dimethylamine is made by chlorinating 2-methylcyclohexylcarboxylic acid with thionyl chloride, reacting the resulting chloride with dimethylamine and reducing the dimethylamide obtained, with lithium aluminium hydride. Pharmaceutical preparations having sympatholytic activity comprise the above quaternary compounds together with an acceptable carrier, suitably in the form of powders, granules, capsules, cachets, tablets, suspensions, solutions or emulsions for oral administration, aqueous solutions or suspensions for injection or as suppositories or pessaries.
Patent GB-1326493-A (GB)
Title: Transducer
IPC: G01L9/00
Filed: 1971-04-19
Abstract: 1326493 Fluid-pressure signal sensor AUTOMATIC SWITCH CO 19 April 1971 [27 March 1970] 25043/71 Heading H4D A fluid pressure signal is sensed by directing it through a whistle to generate ultrasonic waves which are detected by a piezoelectric crystal. In the embodiment shown the whistle is a fluidic device 12 with resonator chambers 15, 16 and a lateral Venturi section 14, 45 through which the pressure signal is directed. Crystal 31, on a brass backing disc 30 in divergent chamber 22, is resonant at the generated ultrasonic frequency (e.g. >18 kHz, preferably about 50 kHz) and its output at terminals 34, 35 is amplified and rectified by circuit 11.
Patent GB-774548-A (GB)
Title: Improvements in or relating to electro-magnetic switches
Inventor: HEWLETT MICHAEL GILBERT TANNER
IPC: H01H50/30
Filed: 1954-08-28
Abstract: 774,548. Electromagnetic relays; electromagnetic interrupters. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 18, 1955 [Aug. 28, 1954], No. 25046/54; Class 38(5)  A miniature relay comprises an armature 27 supported at one end of a substantially rigid torsion wire 26 passing through a bore 22 in a tube 21, the other end of the wire being fixed in the tube by crimping at 28. The wire is held in an aperture 32 in the armature by compressing the latter at 33. The tube 21 is fixed e.g. by soldering, in a desired angular position in a bush 16 secured to an insulating base 10, the bush also, receiving an armature spigot 34 to guide the armature in its pivotal movement towards poles 37. 38 of a U-shaped magnet having a yoke 39 surrounded by a coil 40. The armature carries a pair of contacts 35, 64 co-operating, respectively, with a contact 52. mounted in the pole 37 and a contact 63 carried by a spring 62. When the coil is not energized the wire 26 holds the contacts 63, 64 closed, energization of the coil causing closure of contacts 35, 52 and opening of contacts 63, 64. Thus the relay may function as a change-over switch the common wire-connecting terminal being formed by a socket 23 in the tube 21. By energizing the coil 40 with A.C. the relay may function,as a vibrator. The relay may be sealed within a can 74.
Patent GB-302414-A (GB)
Title: Means for preventing the free dissemination of dust during drilling and like operations
IPC: E21B21/015
Filed: 1927-09-22
Abstract: 302,414. Daniel, D. J. Sept. 22, 1927. Addition to 266,630. Percussive drills.- In a modified form of the device comprised in the parent Specification, the jet 11 producing the suction is arranged near upper end of a conduit 9 leading downwardly from the dustcollecting cup 6 to the receptacle 18. A collar 8 is provided to support the tool in the cap and a leather or rubber lip may be fixed to the conical end.
Patent GB-1030270-A (GB)
Title: Serrated gear shaving tool
Inventor: DANIEL DAVID WRIGHT
IPC: B23F21/28
Filed: 1964-12-22
Abstract: 1,030,270. Gear-shaving cutters. NATIONAL BROACH & MACHINE CO. Dec. 22, 1964, No. 52118/64. Addition to 978,528. Headings B3K and B3L. A shaving cutter as claimed in the parent Specification comprises side walls 138 disposed to define with the flank surfaces angles of 100 to 110 degrees. The toothed cutter for cutting the grooves has a complementary shape.
Patent GB-1152643-A (GB)
Title: Polyamide Adhesives
IPC: C07C49/697
Filed: 1967-05-31
Abstract: 1,152,643. Seaming. W. R. GRACE & CO. 31 May, 1967 [31 May, 1966; 24 Feb., 1967], No. 25171/67. Heading B3J. [Also in Divisions B5 and B8] A method of seaming steel cans comprises forming tubes with overlapping edges from rectangular steel blanks, coating the overlapping edges with an epoxy resin, placing a film of an amorphous polyamide between the coated edges and seaming under heat and pressure.
Patent GB-261519-A (GB)
Title: Improvements in control means for valves
IPC: F16K31/363
Filed: 1925-10-09
Abstract: 261,519. Blakeborough, R. A., and Klouman, F. A. Oct. 9, 1925. Valves controlled by pilot or relay valves.-A valve control means particularly applicable to reducing or sustaining valves of the axial flow plunger type has a sliding or needle auxiliary valve adapted to co-operate with a seat formed on a tubular extension carried by an actuating piston. The Figure shows the application of the invention to a reducing valve of the kind comprising an axially arranged plunger valve, carrying an auxiliary valve actuated by a rack d engaging a pinion c. The rack d is actuated by a plunger e<1> carried by a piston e working in a cylinder f, both ends of which are connected through a pipe q to the upstream side of the main conduit. A tubular extension e<2> on the piston has ports e' opening into the chamber above the piston and passes through a stuffing box in the end of the cylinder into a chamber s connected by a pipe s<2> to a zone of low pressure. The control valve r seats in the extension e<2> and is carried by a spindle r' linked to a lever l pivoted at l<3> and loaded by a weight p and spring o. The control piston m is pivoted at l<2> to the lever and is subject to outlet pressure admitted through a pipe n<2>. The control cylinder may be arranged coaxially with the actuating cylinder. When used as a sustaining valve the piston m is subject to upstream pressure and the rack arranged to engage the other side of the pinion or the pivot l<3> moved to the other side of the connection l<2>.
Patent GB-797221-A (GB)
Title: Closure caps for petrol tanks or other liquid containers
Inventor: STEVENS COLIN AUBREY
IPC: B60K15/04
Filed: 1955-09-02
Abstract: 797,221. Locks. CEANDESS, Ltd. July 25, 1956 [Sept. 2, 1955], No. 25245/55. Class 44 [Also in Group XVII] A closure cap for a petrol tank or other liquid container comprises in combination a body part 3, having a central boss 6 formed with a bore, a barrel lock 7 mounted for angular movement in the outer end of the bore, at least one catch-piece 12 mounted at the inner end of the boss for movement in a radial direction, a conical seating formed in the inner end of the bore, and a conical member 8 mounted in the inner end of the bore and urged by a spring 9 into engagement with the seating- to prevent the escape of liquid around the lock 7. the member 8 being drivably connected to the lock 7 and provided with cam means 11 to move the catch-piece 12. Two catch-pieces 12 are provided in a diammetrical recess in the inner end of the boss 6 and are urged radially inwardly of the latter by spring 15 engaging pegs 14 on the boss 6 and housed in slots 13 in the catch-pieces, the inner end of the boss 6 being provided with a cover 10. In the locked position, the catch-pieces 12 engage under a flange 16 in the inlet 5 of the liquid container. The cap has a flange 4 provided with means to interlock, on partial rotation, with means on the inlet 5, before locking of the cap is effected.
Patent GB-864428-A (GB)
Title: Improvements relating to sewing machines and bobbin cases therefor
IPC: D05B57/14
Filed: 1958-08-07
Abstract: 864,428. Sewing machines. ANKERPHOENIX NAHMASCHINEN A. G. Aug. 7, 1958 [Aug. 8, 1957], No. 25314/58. Class 112 The bobbin case 13 for a rotary hook 1 comprises a thread-guiding aperture 15 which is located in a portion 14 of the case extending radially outwardly and rearwardly of a front wall of the case, and the aperture and centre of gravity of the case are arranged in a plane parallel with the end walls of the case. In use, the aperture 15, the centre of gravity of the case and a needle aperture 18 in the stitch plate 17 of the sewing machine all lie substantially in the same vertical plane, whereby a pull on the bobbin thread 16 lifts the case without tilting it laterally. The rotary hook is carried by a shaft 7 driven by 2:1 gearing 5, 4 from a shaft 2.
Patent GB-920457-A (GB)
Title: Improvements relating to haymaking machines
IPC: A01D78/06
Filed: 1960-07-20
Abstract: 920,457. Haymaking machines. MASCHINENFABRIK FAHR A.G. July 20, 1960 [Aug. 3, 1959], No. 25343/60. Class 6(3). A haymaking machine, having endless belts or chains 4 with tined rake-bars 5 mounted transversely thereon, the rakebars carrying levers 7 which are interconnected by links 10 so that the tines are maintained at an appropriate attitude for any particular haymaking operation, is characterized in that the links can be connected to the levers in alternative positions thus enabling different operations to be effected without altering the direction of travel of the belts. The levers 7 upstand centrally from the rakebars 5 and have upper and lower connectionpoints 8, 9 for the links 10. The two alternative positions for the links are shown at 14, 15 in Fig. 2 the link-position 15 resulting in an upward kick of the tines in passing around the pully 2, this being suitable for tedding. The belts can be run in the reverse direction, for tedding, so that the tines kick upwardly around the pulley 3; for side-delivery in this direction the links 10 require reversal on their pivots 8, 9.
Patent GB-615965-A (GB)
Title: Resilient suspension of engines
IPC: F16F1/54
Filed: 1946-08-24
Abstract: 615,965. Engine mountings. METALASTIK Ltd., and HIRST, A. J. Aug. 24, 1946, No. 25351. Addition to 593,121. [Class 79 (iii)] [Also in Group XXXII] In a resilient engine mounting of the type comprising a pair of rubber sandwich mountings loaded mainly in shear disposed one on either side of the rear part of the engine, the laminations F are arranged so that their main planes of shear are inclined rearwardly from the vertical and also inwardly, preferably so that their axes of maximum stiffness S intersect on the axis of inertia B just in front of the centre of gravity A. The front of the engine is supported by a rubber mounting disposed either on the axis of inertia at G or just below the crankshaft axis C at G<SP>1</SP>. The rubber mountings may be of the sandwich type as shown in Figs. 1-3, or of a conical pattern, as in Figs. 8 and 10. The mounting shown in Fig. 3 comprises an inner member 3x bolted to the side of the engine and to which are bolted the inner plates 2 of a pair of rubber sandwich mountings 1, the two outer plates 2 of which are bolted to a pair of angle brackets 5 secured to the chassis frame. The degree of pre-compression of the rubber members 1 is governed by the width of distance members 6<SP>x</SP> separating the two brackets 5. Rotational movement of the engine about its axis of inertia, i.e. relative vertical movement between the inner member 3<SP>x</SP> and outer brackets 5 is limited by top and bottom rubber buffers 11 secured to the end plates 13 fast with brackets 5, abutment surfaces 12 being provided at the top and bottom of the inner member 3<SP>x</SP>. The mounting shown in Figs. 8 and 10 comprises a pair of concentric metal cones 14, 15 bonded to a rubber element 16, which has diametrically opposed slots 17 so that the plane of shear passes diametrically through the middle of each slot. The outer cone 14 is secured to a ring 18 bolted to the bracket 19 fast with the chassis frame. The inner cone is gripped between spigoted bushes 24, 23, carried by the central bolt 21 which is fast with the bracket 22 secured to the engine. Relative vertical movements between the two cones are limited by rubber buffers 26 bonded to the plate 27, which abut against the spigoted bush 24 and the adjustable stop 28. The position of the plate 27 may also be adjustable or it may be pre-set with the aid of distance pieces. A depending cover plate 25 may be provided to protect the cone unit.
Patent GB-1049169-A (GB)
Title: A constant load extension device
IPC: F16F9/48
Filed: 1964-06-19
Abstract: The wind up bobbin of a textile machine e.g. a carding engine is loaded by a device (see Division F2) providing a constant load irrespective of its extension.
Patent GB-946933-A (GB)
Title: A panelling structure for a ceiling, wall or similar surface and a method for the manufacture thereof
IPC: E04B9/26
Filed: 1960-07-21
Abstract: 946,933. Suspended ceilings; stud and socket fastenings. HUNTER DOUGLAS INTERNATIONAL CORPORATION. July 21, 1960 [Aug. 1, 1959], No. 25420/60. Headings E1V and E2B. Ceiling panels 4, Fig. 2 are supported by bearers 10 carried by joists 1, the bearers 10 being fastened to the joists by fastening means 6 which are so constructed that they may be brought into a first position relative to the joists, in which position the bearers 10 are supported at a distance from the joists and into a final position, Fig. 3, in which the edges of the panels 4 are firmly clamped between the bearers 10 and the joists 1. The fastening means in one embodiment are formed from resilient metal strip shaped to slidably engage within the bearers 10 and have lips 12 which locate the fastening means in the first position upon insertion of the lips through apertures 5 in the joists 1. Curved portions 11 in the legs of the fastening means serve to locate them in the final position shown in Fig. 3. An alternative form of fastening means formed from resilient strip is described with reference to Figs. 5 and 6 (not shown). In a further embodiment the fastening means comprises the female portion 20, Fig. 7 of a press stud fastener secured to the joist and adjusted to be engaged by a male portion 21 of a press stud fastener formed by the bearer. The female portion 20 is formed with a socket defining two positions, one of which is occupied by a head 22 of the male member to define the first position and the other of which, at 23, is occupied by the head 22 to define the final position. The panels 4 may be perforated and provided with a strip of porous paper Fig. 1 (not shown) upon which a sound absorbing filling may be arranged.
Patent GB-467484-A (GB)
Title: Improvements in and relating to the recovery of tantalum and niobium
IPC: C22B34/24
Filed: 1935-09-13
Abstract: Primary materials, ores, and metallurgical bye-products containing tantalum and niobium in oxide form and which may contain other elements such as titanium in oxide form, are reduced with an amount of calcium alone or calcium and aluminium conjointly in metallic form or as alloys with tantalum and/or niobium which amount is insufficient completely to reduce both the tantalum and niobium to obtain an alloy having a higher niobium: tantalum ratio than the primary material and a slag having a higher tantalum: niobium ratio than the primary material.  The slag obtained may be treated with calcium and/or aluminium or an alloy of tantalum with calcium and/or aluminium.  An induction furnace, arc furnace, radiating furnace, crucible furnace or flame furnace may be employed.  A metal or metals, such as iron, may be added to produce an alloy.  Specific examples refer to the production of alloys containing tantalum, niobium, iron, manganese, silicon; tantalum, niobium, iron, titanium, silicon, calcium; tantalum, niobium, iron, manganese, silicon, aluminium; tantalum, niobium, iron, silicon, aluminium.  An alloy containing 25 per cent of calcium and 75 per cent of aluminium is referred to as a reducing-agent.  Specification 467,483 is referred to.
Patent GB-489076-A (GB)
Title: Improvements in or relating to the air-cooling of the cylinders of internal combustion engines on aircraft
IPC: F01P7/02
Filed: 1937-09-21
Abstract: 489,076. Aircraft engines. MERCIER, P. E. Sept. 21, 1937, Nos. 25631, 25632, 25633, and 25634. Convention dates, March 10, April 16, July 29, and Aug. 9. [Class 4] [Also in Groups XXVII and XIII] In an aircraft engine, a hollow fairing 31 in front of each cylinder divides the cooling air into two streams and acts as an exhaust conduit for the streams when reunited after having passed over the front cylinder ribs. Normal inter-cylinder baffles 16 are placed between the cylinders, but in the case of a tworow engine, these may also be formed as exhaust conduits for the cooling air. In a radialcylinder engine, these conduits lead to an annular conduit 25 having a controlled outlet from the engine cowling at a point where a depression exists, either in front of, or behind, the engine. Annular guide blades 36, 37, at the nose, may be adjustable, preferably in conjunction with an adjustable outlet; separate conduits 32 may deliver air directly to the cylinder heads or other overheated parts. The fairings 31 may be arranged unsymmetrically to allow for distortion of the air flow caused by the airscrew, and an annular, or semi-annular, lubricant cooler 28 may be located round the reducing gear in a conduit having an entrance for the cooling air which is adjusted by inflating an annular expansible air chamber. The cooler 28 may, however, be located in a chamber forming a branch from the main cooling air conduit. In an in-line engine, a fairing 31 divides the cooling air into two streams flowing along the two sides of the line, and additional inter-cylinder fairings act as further exhaust conduits for the cooling air, which is led to a conduit extending over the line of cylinder heads and having an exit adjustable simultaneously with flaps on the two sides of the fairing 31.