baber/WOPTO huggingface dataset:
Patent GB-455714-A (GB)
Title: Improvements in or relating to transmission mechanisms
IPC: F16D67/00
Filed: 1935-03-23
Abstract: 455,714. Friction clutches; variable-speed gearing; hydraulic clutches. BORGWARNER CORPORATION, 310, South Michigan Avenue, Chicago, U.S.A.-(Assignees of Swennes, B. A.) March 23, 1935, No. 9157. Convention date, March 24, 1934. [Class 80 (ii)] [See also Group XXIX] A vehicle transmission system comprises a friction clutch and a hydraulic coupling arranged in series between the engine and the gear-box, the annular impeller casing 16 of the hydraulic coupling having friction facings so as to constitute also the driven element of the friction clutch and being adapted to be moved against a fly-wheel 12, secured to the engine shaft 10, by a presser plate 14 rotating with the fly-wheel. The friction clutch, comprising the parts 12, 14, 16, engages automatically at a predetermined engine speed, but may be disengaged manually at any time, the controlling mechanism being similar to that described in Specification 422,443. As shown in Fig. 3, the turbine runner 18 of the hydraulic coupling is connected to the gear-box input shaft 411 through a one-way roller clutch 464. A sleeve 451, secured to the casing 16 and surrounding the shaft 411, is adapted to be connected to a gear 4111 secured to shaft 411 by a claw clutch member 486 so as to afford a drive direct from the friction clutch to the shaft 411. As shown in Fig. 1, a sleeve 13 secured to the casing 16 carries a gear 100 in mesh with a countershaft gear 105, which drives a second countershaft gear 110 through a one-way roller clutch 108 and to which is secured a third countershaft gear 116. The turbine runner 18 is secured to a shaft 15 passing through the sleeve 13 and carrying a gear 101. A gear cluster 111 splined on the propeller shaft 11 is controlled by an arm 122. With the latter in position R, gear 125 meshes with an idler gear 127 in mesh with gear 116, and a positive reverse drive is transmitted from sleeve 13 to shaft 11. With arm 122 in position N, no drive is transmitted to shaft 11. With arm 122 in position F, gear 125 meshes with gear 110 and teeth 124 engage with the gear 101. In this position, the hydraulic coupling and the reduction gear train 100, 105, 110, 125 are thus arranged in parallel, and at low speeds the shaft 11 is driven through the gear train while at higher speeds the hydraulic coupling becomes effective to drive the shaft 11 direct, the one-way clutch 108 then over-running. With arm 122 in position F\ the teeth 124 are disengaged from gear 101 and gear 126 engages gear 116. A positive reduced drive is thus transmitted from sleeve 13 to shaft 11.
Patent GB-1217401-A (GB)
Title: Mounting apparatus for use in casting installations
IPC: B22D41/14
Filed: 1968-02-26
Abstract: 1,217,401. Ladle nozzles. METACON A.G. 26 Feb., 1968 [3 March, 1967; 25 Sept., 1967], No. 9198/68. Heading F4B. Apparatus for accurately locating a nozzle block 10 for a bottom pour ladle incorporating slide closure mechanism disclosed in Specification 1,198,777 comprises a slide housing 14 secured by screws 12 to the ladle base 2, and a spindle mechanism 20 detachably secured to the housing by screws 16 and incorporating a spindle 28 carrying a piston 30, a pressure plate 38 and a spacer ring member 44 on which is the nozzle block 10. A centering mandrel 46 engaging the nozzle block has a spindle 48 extending downwardly to engage a nut member 50 and formed with a square shaft 58 engaged by a handcrank 60. Spindle 28 is rotated by handcrank 52. The piston 30 is prevented from rotating by a pin 32 engaging a longitudinal groove 34 in the inner wall of a guide sleeve 24. In a modification (Fig. 2), the pressure plate and centering mandrel are actuated hydraulically and in another modification (Fig. 3) the centering mandrel and the piston move on axes offset from one another.
Patent GB-1509372-A (GB)
Title: Process for the preparation of benzene compounds
IPC: C07C/
Filed: 1977-03-04
Abstract: 1509372 Hydrazolbenzenes BAYER AG 4 March 1977 [8 March 1976] 09204/77 Heading C2C A hydrazobenzene is prepared from an azoxybenzene, an azobenzene, or a mixture thereof by reduction with hydrogen or hydrazine hydrate in a solvent comprising a C 1 -C 6  alcohol and from 0-50% by weight, relative to the total solvent, of water, in the presence of Raney nickel and at least one alkali metal compound or alkaline earth metal compound which has an alkaline action, ammonia or an organic base. The hydrazobenzene may be converted without isolation into a 4,4<SP>1</SP>-diaminodiphenyl derivative by treatment with a mineral acid.
Patent GB-526637-A (GB)
Title: Improvements relating to the actuation of the supply valves of steam heating apparatus
IPC: F16K41/10
Filed: 1939-03-23
Abstract: 526,637. Valves. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and BARTY, T. March 23,1939, No. 9211. [Class 135] A valve device particularly adapted for use' in connection with the steam heating apparatus in railway and other vehicles comprises a reciprocating or rotary slide valve member actuated by a longitudinally movable rod or member fitted with a bellows packing device to prevent leakage to the outside of the casing. In the form shown in Fig. 1, the valve operating member 6 has at one end a tail 7 slidable in a socket and at the other end slidably engages a ferrule 4 clamped to the end of the casing by a nut 5. The packing bellows 3 is attached to the ferrule 4 and the member 6. The valve member, which slides on a plane seat about the outlet passage has a tubular boss 13 slidable in the member 6, and is held to its seat by a spring housed in this boss and a similar boss 18 on an abutment slidably engaging a removable cover. The member 6 has a lost-motion connection with an external operating rod 9 said lost-motion comprising a collar 11 as the rod 9 working between the bottom of a recess in the member 6 and a collar 12 secured thereto. In the form shown in Fig. 3 the valve member 25 is slidably mounted in a pin carried by a lever formed with a boss 26 mounted on a pivot 27 and having arms pinned to a reciprocating rod 32 fitted with a packing bellows 3. The rod 32 is pinned to a bracket 34 slidably mounted between spaced abutments on an external operating rod guided in an extension of the casing. In a modification of this form the bracket is secured to a tube slidable in lugs on the casing between spaced abutments on the operating rod. In another form the operating rod has a slidable engagement with an eccentric pin on a crank disc the valve member being slidably mounted on a second pin.
Patent GB-395462-A (GB)
Title: Improvements in or relating to vermin traps
IPC: A01M23/26
Filed: 1932-03-31
Abstract: 395,462. Animal traps. PATTEN, S., (trading as ROBERTS, J., )and PATTEN, S., 24, North Street, Wednesfield, Staffordshire. March 31, 1932, No. 9239. [Class 5 (i). Pivot pins c, around which the ends f of the slotted bridge E are curled, are formed integral with the one-piece tongue C and till B of a spring-jaw trap, one of the jaws D of which, in the set position, engages the shoulder b on the till. Reference has been directed by the Comptroller to Specification 14468/87, [Class 5, Agricultural appliances, Farmyard &c.].
Patent GB-1080266-A (GB)
Title: Separation of lactams from a strong sulphuric acid medium
IPC: C07D201/16
Filed: 1965-03-04
Abstract: Lactams, particularly e  - caprolactams, obtained in a concentrated sulphuric acid medium (which may contain free SO3) by e.g. a nitrosation or Beckman re-arrangement reaction, are separated from the sulphuric acid to which they are bound, by addition of an aqueous solution of ammonium sulphate, in such an amount that the molar ratio between ammonium sulphate and sulphuric acid in the medium is at least 0.75:1 and preferably not greater than 2:1.  The lactam thus converted to the free base is then separated from the acid solution, for example by extraction with an organic solvent.  Specified solvents are benzene, toluene, 1,2-dichloroethane, chloroform, ethyl ether, dibutyl carbitol.
Patent GB-526836-A (GB)
Title: Improvements in or relating to focal plane shutters for photographic cameras
IPC: G03B9/34
Filed: 1939-03-24
Abstract: 526,836. Photographic roller-blind shutters. LEITZ GES., E. March 24, 1939, No. 9358. Addition to 488,073. Convention date, June 2, 1938. [Class 98 (i)] In a modification of the focal plane shutter forming the subject of the parent Application, in which the blinds run down independently, the mass inertia of the locking member for the second blind is used to brake the speed of the first to equalize the speeds of the two blinds. The shutter setting mechanism comprises a disc 1 on the spindle 16 about which the blind rollers rotate. The disc 1 is provided with large holes 2 and smaller holes 10, in which a tapered pin on an arm 23 projecting from a setting head 22 can be selectively engaged to vary the width of the slit. A locking pawl 26 is pivoted on a shaft 7 and is held against a stop pin 6 by the spring 8. The spring 8 also causes the shaft 7 to bear at its lower end on a spring 43 which is contacted also by the release shaft 44. When the tensioned first blind is released by pressure on the knob 29, the second blind is retained by contact of an arm 21 with the shoulder 3 of the pawl 26. As the first blind runs down, the arm 23 contacts with one or other of the two adjustable eccentric pins 4, 5 on the pawl and moves the pawl from the arm 21 to release the second blind. The mass of the pawl and the strength of the spring 8 are so calculated that the speed of the first blind is reduced to the desired extent without necessitating a separate braking device. The pin 5 is higher than the pin 4, the contact arm 23 contacting with one or the other according to whether the taper pin on it is engaged with a small hole 10 or a large hole 2 in the disc 1, thus retaining the arm in a higher or lower position respectively. Specification 488,073 is referred to.
Patent GB-1434161-A (GB)
Title: Earth moving vehicles
IPC: E02F3/65
Filed: 1974-03-01
Abstract: 1434161 Screw conveyers H D FENSKE 1 March 1974 [2 March 1973] 9423/74 Heading B8A [Also in Divisions E1-E2] An auger assembly mounted on an earth. moving bowl type scraper to remove scraped up material into the bowl of the scraper away from the scraper bladed entrance of the bowl is such that the lower end or ends of the vertically disposed auger or augers of the assembly can move laterally within the bowl on being engaged by oversize material entering the bowl to prevent rotational jamming of the auger(s). The assembly has a framework having a pair of spaced apart arms 80 that can be pivotally attached at 81 to the sides of the bowl so that the auger(s) can also be moved vertically. The lateral movement can be obtained by provision in the framework for the upper end of the or of each auger shaft of a bearing support means that will permit of the required lateral movement. Preferably the bearing support means comprise two vertically spaced support means of which the upper one involves a bearing housing 104 for a spherical formation 73 on the auger shaft 72 whilst the lower one involves a resilient restraining means 90 so surrounding the shaft as to limit lateral swinging of the shaft whilst applying a return bias thereto. The auger assembly can be swung out of the bowl by the apron when it is raised to allow of discharge of collected up material from the bowl.
Patent GB-269886-A (GB)
Title: Improvements in or relating to cutting and severing machines or delivery machines for paper and like webs
IPC: B65H29/62
Filed: 1927-04-06
Abstract: 269,886. Spiess, G. April 24, 1926, [Convention date]. Delivery apparatus; cutting- apparatus.-A web 18 is fed over an inspection position 19 by rollers Rand faulty cut sheets are delivered to a table 7 by a switch 5 actuated irom a lever 29. An interval of time elapses between the actuation of the lever 29 and the movement of the switch 5. The switch 5 is normally in the raised position and good sheets are delivered to a pile 6. A guillotine knife 1 is actuated from a cam 4. On observing a fault in the web the operator moves the lever 29 which displaces axially a stationary cam 25 into the path of bolts 24 freely mounted in a rotating carrier 23. The bolts are projected and trip a lever 14 cocking a bellcrank 10. A spring 16 moves a bowl 11 into the path of a cam 12, on a one revolution shaft 3, which actuates the switch. The bolts are restored to original position by a member 30. In a modification, the switch is actuated electrically and two bolts are used to allow of consecutive faulty sheets being diverted.
Patent GB-644174-A (GB)
Title: Improvements in low-frequency amplifying circuit-arrangements
IPC: H03G9/08
Filed: 1948-04-05
Abstract: 644,174. Valve amplifying circuits. PHILIPS ELECTRICAL, Ltd. April 5, 1948, No. 9506. Convention date, April 8, 1947. [Class 40 (vi)] In a low frequency amplifier circuit including a discharge tube 7 the input circuit of which includes a potentiometer 4 to which the signals are fed and which controls the amplification, two feedbacks one positive and one negative are connected to the two ends 11 and 17 and to a third fixed point 12 on the potentiometer through filter circuits 13, 14 and 20, and 15 and 16 so that if the movable contact 6 is near the end 17 the medium frequencies are amplified more than the average whereas if contact 6 is near end 11 they are amplified less than the average. A high-pass filter 18 and 19 is also provided to avoid undue suppression of high frequencies and a negative feed-back circuit 21, 22 and 23, prevents excess of low frequencies. By connecting these circuits with a further potentiometer 23 and 25 it is possible to effect tone control.
Patent GB-691493-A (GB)
Title: Mixed acrylonitrile polymers
IPC: C08F220/42
Filed: 1951-04-24
Abstract: Compositions of acrylonitrile polymers are prepared by blending 50 to 98 per cent by weight of a base acrylonitrile polymer containing, in the molecule, at least 90 per cent by weight of acrylonitrile and at most 10 per cent by weight of at least one other substance which contains only one >C=C< group and is copolymerizable with acrylonitrile, with 50 to 2 per cent by weight of a modifying copolymer containing, in the molecule, from 10 to 70 per cent by weight of acrylonitrile or methacrylonitrile and from 90 to 30 per cent by weight of at least one other substance which contains only one >C=C< group and is copolymerizable with the nitrile.  The base polymer may be polyacrylonitrile, and the copolymerizable substance may be acrylic, alpha-chloracrylic or methacrylic acid, methyl, ethyl, butyl or alpha-chlorethyl methacrylate, acrylate or alpha-chloracrylate, vinyl chloride, bromide or fluoride, vinylidene chloride or bromide, 1 - chloro - 1 - bromethylene, 1 - fluoro-1 - chlorethylene, 1,1 - difluoroethylene, methacrylonitrile, fumaronitrile, alpha-chloracrylonitrile, acrylamide, methacrylamide, alpha-chloracrylamide, methyl vinyl or methyl isopropenyl ketone, vinyl acetate, chloracetate, propionate or stearate, a vinyl pyridine or vinyl alkyl pyridine, a vinyl pyrazine, alkyl-vinyl pyrazine, vinyl quinoline, oxazole, imidazole or benzoxazole, N-vinyl-phthalimide, -tetrahydrophthalimide or -succinimide, a methylene malonate, itaconic acid or an itaconate, triflurorchlorethylene, N - vinylcarbazole, vinyl furane, butyl or ethyl vinyl sulphone, ethylene, propylene, isobutylene, butene-1 or butene-2, an alkyl vinyl ether, vinyl sulphonic acid, diethyl fumarate, maleate, citraconate or mesaconate, styrene or vinylnaphthalene.  The polymers are preferably blended by mixing them with a common solvent such as N,N-dimethylformamide, N,N-dimethylacetamide, butyrolactone, ethylene carbonate and N,N-dimethylmethoxyacetamide, and the resulting solutions may be used as spinning solutions for the production of filaments which may be oriented and dyed with acetate dyestuffs.  Specification 692,376 is referred to.
Patent GB-1309558-A (GB)
Title: Method of detecting electromagnetic radiation and homogeneous compositions for use in performing the method
IPC: G02F1/13
Filed: 1970-02-27
Abstract: 1309558 Liquid crystal WESTINGHOUSE ELECTRIC CORP 27 Feb 1970 [30 April 1969] 9535/70 Heading C2U [Also in Divisions C4 Gl H4 and H5] Cholesteryl p-(phenylazo)phenyl carbonate is prepared by reacting cholesteryl chloroformate with p-(phenylazo)phenol in benzene and pyri. dine. It is said to be a liquid crystal.
Patent GB-576985-A (GB)
Title: Means for securing parts by bolting
IPC: H02K5/00
Filed: 1944-05-18
Abstract: 576,985. Bolting. JACK & HEINTZ, Inc. May 18, 1944, No. 9588. Convention date, Dec. 17, 1942. [Class 89 (i)] In bolting a housing to a ring of studs, for example a generator housing on aircraft, holes in the housing receive cylindrical parts of nuts that are prevented from entirely leaving the holes by a stop member carried by the housing. The housing 1 has openings 3 for spanner access to the hexagonal part of nuts 22 having sleeve portions 24 guided in holes 6 in the housing. The threaded parts of the nuts are aligned and guided by plain clearance studs 20 secured to the flange 14 of a member 10 secured by another flange 13 to the housing at 15. The flanges 13, 14 are interrupted but connected by radial ribs 11. The member 10 prevents the nuts from entirely leaving the holes 6 and holds them in correct position for starting on the threads of the studs 4.
Patent GB-1373844-A (GB)
Title: Semiconductor arrangement
IPC: H01J29/45
Filed: 1972-03-01
Abstract: 1373844 Semi-conductor devices; image pick-up tubes LICENTIAPATENT-VERWALTUNGS-GmbH 1 March 1972 [2 March 1971] 9600/72 Headings H1K and H1D A semi-conductor arrangement, e.g. the target of an image pick-up tube, comprises an N (or P) type semi-conductor body 1 having in a major surface thereof at least one P(N) type region 3, an insulating layer 9 on the major surface with openings over the regions 3, and, at least within the openings and preferably also extending on to the insulating layer 9, a resistive layer 11 comprising a compound of Si with a metal from Groups VA or VIA of the Periodic Table. Suitable resistive compounds include the silicides of tantalum, tungsten or molybdenum, singly or in combination, and if a more highly resistive material is required the compound may be mixed with a ceramic or glass material such as SiO 2 . For a Si image pick-up tube target as shown the layer 11 prevents the accumulation of charge from the electron beam 10 on the SiO 2  layer 9. The layer 11 may be continuous. as illustrated or may comprise a separate zone for each region 3.
Patent GB-724832-A (GB)
Title: An improved apparatus for centrifugal casting
IPC: B22D13/10
Filed: 1953-04-09
Abstract: 724,832. Centrifugal casting-machines. REGIE NATIONALE DES USINES RENAULT. April 9, 1953 [June 13, 1952], No. 9693/53. Class 83 (1). A centrifugal casting-machine comprises weights 12 on bell-crank levers which act centrifugally to resist the outward movement of split chill moulds 6, 6<SP>1</SP> housed in a cylinder 1. The cylinder 1 is rotated by rings 2, running on wheels of the driving-device. End-rings 3, 8 of sand are held in position by a ring 4 and a cover 9. The cover 9 is retained by centrifugally-acting weights 10.
Patent GB-986709-A (GB)
Title: Bearings
Inventor: CAMPBELL CHARLES
IPC: F16C33/12
Filed: 1963-03-12
Abstract: 986,709. Bearings. MORGANITE RESEARCH & DEVELOPMENT Ltd. March 12, 1964 [March 12, 1963], No. 9745/63. Heading F2A. A bearing surface is formed from material containing non-sintered particles of nickel oxide and/or cobalt oxide. The bearing surface preferably contains at least 20% by weight of nickel oxide and/or cobalt oxide. The nickel oxide and/or cobalt oxide may be applied to a metal substrate, having a softening point below a 1000‹ C., by spreading the particles evenly over the substrate and then rolling the particles therein. Alternatively, powdered nickel oxide and/or cobalt oxide can be incorporated in an enamel, e.g. a frit. In an embodiment, nickel oxide is applied as a component of an enamel coating to the substrate. The frit is made in the usual way, by smelting a mixture of oxides prepared according to the following table at 1200‹ C. in a crucible. After several hours the resultant frit is poured slowly into water, where it is shattered into small fragments. The above frit forms the base for a coating slip made up as follows: The mixture is ground in a ball-mill for several hours and the resultant suspension is applied in one of the usual ways to the clean substrate. Spraying is preferred for substrates of sufficiently open design, but dipping is also effective. After drying, the work is fired for ten minutes at 900‹ C. and cooled.
Patent GB-182553-A (GB)
Title: Improvements in or relating to switches of the quick make and break type
IPC: H01H21/42
Filed: 1921-04-02
Abstract: 182,553. Tucker, J. B. April 2, 1921. Switches, quick-action. - Relates to snap-action switches of the kind in which the operating and contact members are both pivoted and have the same direction of rotation, the movement of the contact member being produced by a compression spring. The invention comprises a detent movable in relation to both the operating and the contact members and adapted to restrain the contact member during the initial movements of the operating-member. The handle a is secured to a spindle b, to which the contact member c is pivoted. Articulated respectively to a projection d, secured to the spindle, and to the part g of the member c are two telescopic arms e, f, between which is disposed the spring j, so that as the arms are extended the spring is compressed. The detent m, pivoted at n, has a lug s coacting with an arm t fixed to the member c, and also has an arm o carrying a pin p which enters a cam-slot q in a plate r secured to the spindle b. In the closed position, Fig. 2, the iug s is behind the arm t and prevents it from moving until displaced by the pin-and-slot connection. In the open position the lug s engages in front of the arm t, as shown in Fig. 3.
Patent GB-308899-A (GB)
Title: Improvements in or relating to spectacles, eyeglasses and the like
IPC: G02C5/12
Filed: 1928-03-31
Abstract: 308,899. Kirk, P. and Kirk, S. M., (trading as Kirk Bros.). March 31, 1928. Spectacles. - The placquets g of spectacles, eyeglasses &c. are secured to the placquet - carrying arms b by means of split headed projections j on one part adapted to be sprung into holes on the other part. The projections may be solid and the holes split sided. Several modifications are described.
Patent GB-398929-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G4/248
Filed: 1932-04-06
Abstract: 398,929. Condensers. DUBILIER CONDENSER CO. (1925), Ltd., Ducon Works, Victoria Road, North Acton, London. -(Dubilier, W. ; 10, East 40th Street, New York, U.S.A.) April 6, 1932, No. 9840. [Class 38 (ii).] A condenser stack is clamped by means of a wire member 1 which constitutes also a terminal for electric connection. The clamp. ing part 2 of the, wire may be of flat crosssection and may be spring - tempered or may be tied mechanically at its open part to effect the necessary compression. The clamped condenser may be embedded in a moulded container.