baber/WOPTO huggingface dataset:
Patent GB-443347-A (GB)
Title: Apparatus for handling heavy weights, particularly applicable to life boats and means permitting automatic disengagement thereof
IPC: B63B23/58
Filed: 1935-08-22
Abstract: 443,347. Automatic - release hooks; boat - releasing gear. DUDOUIT, H., 10, Rue du Perrey, Le Havre, France. Aug. 22, 1935, No. 23558. Convention date, May 24. [Class 115] [See also Group XXV] A hook for handling heavy weights and particularly designed for releasing ships' boats when waterborne comprises a bridge 1 attached to the falls and terminating in noses 2 which are engaged by hooks 8 pivoted to a piece 10 mounted on the boat. When the boat is waterborne, the hooks 8 are released under the action of weights 7. A safety-link 13, locks the device to prevent accidental operation of the device. To ensure that the fore and aft hooks are operated substantially simultaneously each of the bridges 1 is provided with a cord 27 linked up to a hook 22 mounted on a fore-and-aft guided rod 17 the free end of which is linked to one of the hook members 8. Release of the hook at one end of the boat causes fore-and-aft movement of the rod 17 with consequent forced release of the hook at the opposite end of the boat. After a limited movement of the rod 17, the hook 22 slips out of the thimble 24 to release the cord 27. A modification is described in which the release gear is arranged vertically In this case the hook 35, Fig. 4 for the releaseline 27 is mounted on a carriage 29 the hook being released when the roller 39 reaches the top of the guide 34. The release hook at the opposite end of the boat is connected to the carriage by the line 19.
Patent GB-1078048-A (GB)
Title: A process for applying a coating on a polymeric material
IPC: C08J7/12
Filed: 1966-05-26
Abstract: In a process for coating a polymeric material, e.g polyethylene p.t.f.e., polyamide, polyimide, polycarbonate, cellulose acetate, and polyethylene terephthalate, it is first activated with a composition comprising a dialkyl sulphoxide solvent and an alkali metal, e.g. cesium, benyllium, strontium, and sodium, and hydrides and amides of such metals.  The coatings may be electroless Cu, Ni, Co, Co-Ni, Ag followed by electroplated Cu, vacuum deposited Co, or carbonyl decomposed Ni.  The material may be sensitized with stannous and palladium chlorides before electroless plating.
Patent GB-988543-A (GB)
Title: Improvements relating to draughting or curve determining devices
IPC: B43L13/22
Filed: 1962-06-20
Abstract: 988,543. Drawing curves. B. J. SOLTYK. April 5, 1963 [June 20, 1962], No. 23647/62. Heading B6P. An instrument for recording and reproducing curves comprises a flexible strip A of channel shape cross-section and a base C, C<SP>1</SP> of two flat metal or synthetic plastic plates. The base C, C<SP>1</SP> has setting holes CP, some without and some with indicating numerals to indicate particular curves, through which pivot pins P engage holes in links B which are pivoted to the flexible strip A with pivot pins PP.
Patent GB-818768-A (GB)
Title: Improvements in or relating to transistor circuits
IPC: G11C11/06
Filed: 1957-07-26
Abstract: 818,768. Transistor switching circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 26, 1957 [July 31, 1956], No. 23753/57. Class 40 (6). In a circuit for producing current pulses of constant amplitude through a variable load impedance 5, Fig. 3, in response to pulses applied to the base of transistor 1, an inductor 91 is connected in series with the load 5 in such a manner that the impedance has a low value below a predetermined collector current and a high value above this current. The circuit is described as applied to a series of ferromagnetic memory cores, the impedance of which is higher if the core has previously been magnetized than is the case when it has not. In the absence of an input pulse, current flows through battery 10<SP>1</SP>, resistor 12, diode 11 and inductor 91, the current being that required to determine the maximum amplitude of the pulse. Upon the occurrence of an input pulse diode 11 cuts off so that the current through inductor 91 is switched into load 5, any increase in collector current beyond this value being opposed by inductor 9<SP>1</SP>. The time constant of the circuit 91, 11, 12 is made short compared with the interval between input pulses, and the time constant of the circuit including the inductor 91 and the transistor when conducting is made greater than the duration of the input pulses. In a modification, Fig. 4, the inductor 13 is wound on a core 14 having a second winding 15 through which current from the supply 4 passes to magnetize it into saturation. The input pulse causes collector current to flow and the winding 13 presents a low impedance until the current flow is such that the core 14 passes out of the saturation region, whereupon the impedance rises to limit the current. The turns ratio of the winding 13, 15 is so chosen that the ampereturns of winding 15 are less than 13 when the transistor is conducting. At the end of the pulse the voltage induced in the winding 15 is suppressed by the diode 17 which passes current back to the supply 4.
Patent GB-207852-A (GB)
Title: A method of and means for distinguishing between opposite directions of electrical energy flow
IPC: H04B3/20
Filed: 1922-09-01
Abstract: 207,852. Western Electric Co., Ltd., (Western Electric Co., Inc.). Sept. 1, 1922. Current-direction indicators. -Opposite directions of energy flow in a line are distinguished by alterning the characteristic between the two spaced points in the line and balancing the energy derived from one point against that derived from the other. The Figure shows relays in a telephone repeater station which are caused to distinguish between opposite directions of energy flow by the insertion of attenuating networks 21, 22 in the line. Each relay is provided with two windings 15, 16 so arranged that energy appearing in the line L, W causes winding 15 to predominate over winding 16 and close contact 11, while energy appearing in line L, E will close contact 12. Electromagnets 5 - - 8 are controlled by the contacts 11, 12 and operate switches 1 - - 4 which connect the input 32 of the repeater R to the incoming line and the output 33 to the outgoing line.
Patent GB-238170-A (GB)
Abstract: 238,170. Krupp Akt.-Ges., F. Aug. 23, 1924, [Convention date]. Disc wheels.-A railway wheel comprises a tyre B formed as a chilled casting on the rim a<1> of the wheel body A which is formed of malleable iron or like tough material.
Patent GB-976945-A (GB)
Title: Improvements in and relating to electrical terminal blocks
IPC: H01R9/24
Filed: 1962-06-20
Abstract: 976,945. Terminal boards and blocks; couplings. D. G. E. BARRIE, and R. F. STILL. Aug. 2, 1963 [June 20, 1962], No. 23839/62. Heading H2E. Units are mounted together to form the insulating structure for a terminal block, each unit having two projections, each formed from two superimposed rectangular portions 14 and 15, on one face, and complementary grooves on the opposite face, the projections and grooves being shaped as shown in Figs. 2 and 1 respectively. Each unit has on top at least two terminal screws and washers connected by a conducting strip of well known design, also an upstanding wall portion 20, which has a lateral projection 21, to come over the strip to locate it in position in co-operation with the screws. The series of units are terminated at each end by a bracket, Figs. 3, 7 and 8 (not shown), adapted to be connected to a supporting surface and shaped to interfit with adjacent units. Hole 46 can accommodate one arm of a Z- shaped metal foot, the other end of which can be screwed to a support, the screwed connection being located in slot 47.
Patent GB-1432067-A (GB)
Title: Process for producing photographic film having a magnetic  recording layer thereon
IPC: G11B5/633
Filed: 1973-05-18
Abstract: 1432067 Preparation of photographic film FUJI PHOTO FILM CO LTD 18 May 1973 [19 May 1972] 23924/73 Heading B2E [Also in Division G2] A method of making a cinematographic film having a magnetic recording layer comprises treating the antihalation layer of a film having a cellulose derivative support with a solution containing at least one compound having at least two aziridine rings and subsequently applying a magnetic dispersion to the antihalation layer or alternatively applying to the antihalation layer a magnetic dispersion containing at least one aziridine compound as defined above. The support is preferably cellulose triacetate, the antihalation layer preferably comprises a hexahydrophthalate or tetrahydrophthalate of hydroxyalkyl alkyl cellulose and the compound(s) contain two to four aziridine rings.
Patent GB-335329-A (GB)
Title: Improvements in telephonic or like loud speakers
IPC: H04R7/24
Filed: 1929-08-07
Abstract: 335,329. Craven, P. A. Aug. 7, 1929. Diaphragms. - A diaphragm of the kind comprising a conical or flared diaphragm 1 tensioned by spring means between its base and apex, is provided with a hoop 2 secured round the base of the diaphragm and spring ribs 8 constantly in stress between the hoop and a recessed body 3 fixed to the apex of the diaphragm. The diaphragm may be made of cambric coated with collodion for the purpose of stiffening. The ribs 8 may be of pianowire or bamboo and may be adjustable in length. The Provisional Specification states that the ribs 8 may be removed after the diaphragm is sufficiently stiffened and that a coating of varnish, powdered conch, murex or like shells may be applied.
Patent GB-1112301-A (GB)
Title: Controlled rectifier with improved turn-on and turn-off characteristics
IPC: H01L29/74
Filed: 1965-06-08
Abstract: 1,112,301. Semi-conductor devices. GENERAL ELECTRIC CO. 8 June, 1965 [27 July, 1964], No. 24132/65. Heading H1K. In an S.C.R. an auxiliary region of the same type as the emitter is located between the emitter and the gate contact to increase the switching speed of the device and to prevent the formation of " hot spots " at the location of the gate contact. As shown, Fig. 3, an S.C.R. is produced by diffusing gallium into an N-type phosphorusdoped silicon wafer 43 to form P-type layers 42, 44, alloying an aluminium electrode 46 to region 44, producing an N-type region 41 by alloying antimony to layer 42, and bonding a gold-antimony disc 45 to region 41. A peripheral portion of disc 45, together with a part of the underlying portion of layer 41, is removed by etching, Fig. 4 (not shown), to define the " auxiliary " part B of region 41. An aluminium gate lead 16 is welded to region 42. In operation, the trigger current produces a large voltage drop across part B of region 41. This triggers the main part A of the device without passing a heavy current through the region adjacent to the gate contact, and therefore prevents the formation of " hot spots."  In a modification a second similar gate contact is provided at the opposite edge of electrode (45), Fig. 5 (not shown). The gates may be operated independently or may be connected together. Alternatively the second gate contact may be provided on region (42) without removing the adjacent part of electrode (45), and this gate may be fired by the voltage developed at a contact (51) applied to region (42) near to gate contact (47), Fig. 5 (not shown). In another modification the " auxiliary " region is annular and completely surrounds the main part of region (41). In a further modification, Figs. 6 and 7 (not shown), the " auxiliary " region (B) comprises a small circular region spaced from the main region (A). A contact (53) may be provided on region (B) and the trigger signal applied between this and gate contact (16). A suitable housing for the completed device is described. Fig. 1 (not shown). The wafer (15) is mounted between a copper base (12) and a metal cup (17) which is connected by a stranded cable (20) to a ferrule (22). Ferrule (22) and cap (23) are insulated from base (12) by an insulating body (18) and ferrule (22) is crimped over cables (20) and (24). Gate lead (16) is connected to the centre contact of a coaxial socket (28), the outer contact being connected to cap (23) and hence to the cathode of the device. A coaxial cable (30) and plug (29) connect the gate contact to the external circuit.
Patent GB-1439098-A (GB)
Title: Pulverulent binders
IPC: C09D5/03
Filed: 1974-05-31
Abstract: 1439098 Powder coating compositions BAYER AG 31 May 1974 [1 June 1973] 24162/74 Headings C3B and C3P Powder coating compositions which are pourable at 40-50 C. comprise (A) 96-80 parts by weight of an acrylic resin containing polymerized units (totalling 100%) of (i) 30-85 wt. per cent of styrene, α-methylstyrene, ochlorostyrene, p-chlorostyrene, p-tert-butyl styrene, methyl methacrylate or a mixture thereof, (ii) 5-60 wt. per cent of an acrylic ester of a C 1-12  alcohol, a methacrylic ester of a C 2-12  alcohol or a mixture thereof, and (iii) 15-30 wt. per cent of a hydroxyalkyl ester of acrylic or methacrylic acid, said resin having (before further reaction) a hydroxyl number of 50-126 mg. of KOH/g., but having had 50- 100 mol per cent of the free hydroxyl groups thereof reacted with at least one aliphatic or cycloaliphatic dicarboxylic acid anhydride, resulting in an acid number of 22-110 mg. of KOH/g.; and (B) 4-20 parts of triglycidyl isocyanurate or a bis- or tris-oxazoline; the total of (A) and (B) being 100 parts. Pigments, e.g. TiO 2 , and/or levelling agents may be added. In examples, the (A) component is the reaction product of succinic anhydride with styrene/ methyl methacrylate/butyl acrylate/hydroxyethyl methacrylate, styrene/butyl acrylate/ hydroxypropyl methacrylate or methyl methacrylate/butyl acrylate/butanediol monoacrylate copolymers, and the (B) component is triglycidyl isocyanurate or 1,4-bis - (# - 2- oxazolinyl - 2)benzene. The compositions may be electrostatically sprayed on to a surface and cured by heating.
Patent GB-259224-A (GB)
Title: Improvements in or relating to valve transmitters for wireless signalling
IPC: H04L27/04
Filed: 1926-09-30
Abstract: 259,224. Telefunken Ges. f³r Drahtlose Telegraphie. Oct. 1, 1925, [Convention date]. Thermionic geneators, amplifiers, and modulating systems. - The modulating valve c of a wireless transmitter is provided with a back coupling e so as to generate a tone frequency. The valve is connected across the grid condenser f of a power amplifier B energized by a control oscillator A. Plate current for the tone-frequency oscillator c is supplied by the rectified grid current of the amplifier B. Specification 131,018 is referred to.
Patent GB-1113623-A (GB)
Title: A bearing member for revolving journals
Inventor: SCHEUFLER ROLAND
IPC: F16C17/22
Filed: 1965-06-08
Abstract: 1,113,623. Bearings. KARL SCHMIDT G.m.b.H. 8 June, 1965, No. 24214/65. Heading F2A. [Also in Division F1] A bearing member 1, 2 is of a coefficient of thermal expansion greater than that of a steel ring 3, 4 which is embedded therein and spaced from a bore of the bearing member, the ring maintaining a desired clearance between the bore and a shaft, on heating. In Fig. 1, a cast, split aluminium box contains a split steel ring with recessed edges. A split bearing bush journals a shaft. In Figs. 13-18 (not shown) the bush is omitted and the shaft directly journalled by the box. The bore of the box may deform from a circular to oval cross-section or vice versa, or may become hyperbolic. In Figs. 19-21 (not shown) a rotary piston contains a steel ring (38, 40, 42).
Patent GB-1535626-A (GB)
Title: Process for producing powdery synthetic rubber
IPC: C08F291/02
Filed: 1977-06-09
Abstract: 1535626 Coated powdery rubber particles TOYO SODA MFG CO Ltd 9 June 1977 [10 June 1976] 24229/77 Heading C3P Powdery synthetic rubber whose particles do not coagulate are produced by adding one or more vinyl monomers whose polymers have a Tg higher than 30‹ C. to a latex of the rubber in an amount of 5-50 parts by wt. per 100 parts by wt. of the rubber and radically polymerizing the monomer(s) to form a coating on the rubber particles. Suitable monomers are, C 1-4  alkyl methacrylates, benzyl methacrylate t-butyl acrylate, styrene, a styrene derivative, acrylonitrile, methacrylonitrile or vinyl chloride. The treatment of latexes of styrene-butadiene rubber, butadiene-acrylonitrile rubber, polybutadiene, polychloroprene and polyisoprene, is disclosed. After the treatment the product formed is separated from the water and preferably washed, preliminarily dried, pulverized and dried again.
Patent GB-506705-A (GB)
Title: Improvements relating to closures for collapsible tubes
IPC: B65D47/20
Filed: 1938-08-17
Abstract: 506,705. Closures for collapsable tubes. STEATIT-VERKAUFSGES. AKT.- GES. Aug. 17, 1938, No. 24282. Convention date Aug. 21, 1937. [Class 125 (iii)] In a closure for collapsable tubes of the type in which pressure within the tube causes the cap b to lift and to open the discharge opening m, the cap is returned to the closed position by a resilient ring d, preferably cone-shaped of rubber &c. ; the ring abuts against a flange a<2> on the body a of the closure and a shoulder c<2> carried by the sliding cap. Sealing of the tube takes place between the inside of the cap and a ring seating e carried by an upstanding part a<1>. The ring d is preferably provided with a wrapping g of tinfoil, and it serves also to prevent access of the contents of the tube to the sliding surfaces of the cap.
Patent GB-865414-A (GB)
Title: Improvements in or relating to log-saws
IPC: B27B29/08
Filed: 1959-07-15
Abstract: 865,414. Sawing. ETABLISSEMENTS GUILLIET, COMMERGUAT-GUILLIET ET CIE. July 15, 1959 [Jan. 15, 1959], No. 24341/59. Class 145. The log carriage 1 of a saw is provided with supports 21, 22 which, after they have passed the saw blade 12, are raised to support the slab being cut off both laterally and from beneath so that the slab does not break off from the log near the end of the cut and is more easily placed on an unloading conveyer. The supports are operated by fluid-pressure or electric jacks and may be controlled manually or automatically. The support 21 comprises an arm 23 rotatable by a jack 34 and mounted on an axis BB with a helical pin-and-slot connection so that, as the jack contracts, the arm is moved along its axis to the far side of the blade and then rotated upwards until a finger 24 on the arm contacts the slab and pivots against spring action so that a switch 45 is closed and the jack is locked in position. Two supports 22 each comprise an arm pivoted on a shaft 48 which is carried by a shoe 51 sliding in guides 53 and is engaged by a sliding rack 55. The end of the rack is secured to a jack 59. When the jack extends, the shoe slides until the shaft 48 is on the far side of the saw and a stop dog 60 meets one of the guides 53. The jack then continues to advance the rack and the shaft 48 is rotated until the arm 22 contacts the slab and pivots to operate a switch 66 which locks the jack in position. For automatic control of the supports, ramps 84 suitably placed on the carriage rails 4 operate control switches 79.
Patent GB-618896-A (GB)
Title: Improvements in washing machines
IPC: D06F37/04
Filed: 1946-08-16
Abstract: 618,896. Washing-machines. HEATING CONSTRUCTION, Ltd., and DARBY, H. G. Aug. 16, 1946, No. 24401. [Class 138(ii)] Relates to a washing-machine comprising a perforated hollow vessel 10 which receives the articles to be washed and is so mounted in a tank 9 as to be rotatable or oscillatable about one or more axes. According to the invention, a perforated tubular member 11 projects inwardly from a position at the periphery of the vessel 10 so as to be disposed at right-angles to an axis of rotation of the vessel and has its outer end open to the tank. The vessel 10, which may be spherical, has trunnions 28 engaging freely in a channel-shaped ring 19 which is itself mounted rotatably in the tank 9 by means of a trunnion 17 and driving-shaft 18. The member 11 extends inwardly along one diameter of the vessel 10 and may be either of cylindrical form or somewhat tapering as shown. The inner end of the member 11 is provided with a plug 13. Specification 599,258 is referred to.
Patent GB-763298-A (GB)
Title: Improvements in or relating to two stroke internal combustion engines
Inventor: RAUCH SIEGFRIED
IPC: F02B33/30
Filed: 1954-08-23
Abstract: 763,298. Valves; two-stroke engines. I.F.A. FORSCHUNGS-UND ENTWICKLUNGSWERK VEB. Aug. 23, 1954, No. 24529/54. Classes 7 (2) and 7 (6). In a two stroke crankcase compression engine having a pair of crank discs 34, 35, Fig. 5, and a mixture inlet port 8 to the crankcase controlled by a rotary disc valve 12, the inlet opening 8 is arranged in a flat end wall of the crankcase compression chamber at a greater distance from the crank-shaft axis than the edge of the crank disc 35 immediately adjacent the port 8. In Fig. 5 the axis of the passage 8 is inclined towards the cylinder 9 and the edge 36 of the crank disc 35 is curved to guide the entering fuel-air mixture. The crankcase 33 is arranged to follow closely the contours of the crank discs 34, 35 and the valve 12, which is driven by a pin thereon engaging in the hollow crankpin, controls the port 8 by means of a sector cut out therefrom, the control edges of the sector being curved to conform with the circular shape of the port 8. In a modification the axis of the passage 8 is at right angles to the cylinder axis and the curved guide surface 36 is formed partly by the edge of the crank disc and partly by a recess in the crankcase. In a further modification the crank discs 18, 19, Fig. 3, are of different radii and the crankcase 20 which is of slightly larger radius than the crank disc 19, is provided with a filler piece 22 which has a passage 21 therein forming a continuation of the passage 8. Alternatively the crank discs may be of the same size, the crankcase being enlarged adjacent the port 8 to provide the passage 21. The crankcase 20, Fig. 3, may be formed in two halves or it may be formed in one piece, the valve 12 being carried in a recess in a cover forming the left-hand and face. In a multicylinder engine the crankcase is divided by partitions to form a separate compression chamber for each piston, and each compression chamber is provided with a rotary valve controlling an inlet port 8 in the end wall of the chamber.
Patent GB-429828-A (GB)
Title: Improvements in and relating to the manufacture of hard alloys
IPC: C22C1/05
Filed: 1933-09-05
Abstract: Hard alloys for tools, draw plates, &c., comprising carbides, borides, silicides, or nitrides of tungsten, molybdenum, titanium, zirconium, tantalum, niobium, thorium, or vanadium, together with two or more metals such as of the iron group, are made by sintering a mixture of one or more of the hard compounds and two or more of the binding metals, tempering the sintered product at over 1000 DEG  C. without intermediate cooling, and finally retempering at 550-700 DEG C.  For example a mixture of 80-96 per cent of tungsten monocarbide powder and 4-20 per cent of a tungsten-cobalt alloy containing 20-35 per cent of tungsten may be pressed and sintered at 1450-1475 DEG C., in hydrogen or an inert atmosphere, tempered at 1250-1300 DEG C., and retempered at 550-700 DEG  C., for 1/2 -2 hours.  In some cases the sintering may be effected in two stages; the hard compounds may be sintered alone followed by impregnation by immersion in molten binding metals; and the final retempering may be delayed until the tool is used, the necessary heat being produced by the working.  When the proportion of hard compounds is below 80 per cent, the retempering may be effected within the range 500-900 DEG  C.