baber/WOPTO huggingface dataset:
Patent GB-507620-A (GB)
Title: Improvements in band pass selectors for modulated-carrier signal-translating apparatus
IPC: H03H7/01
Filed: 1938-09-28
Abstract: 507,620. Valve circuits for wireless reception ; impedance networks. HAZELTINE CORPORATION. Sept. 28, 1938, No. 28206. Convention date, Oct. 16, 1937. [Classes 40 (iii) and 40 (v)] In a band-pass circuit, the voltage output, variable in phase with the frequency of the input, from a network C1, LI; C2, 2L2; C3, L3 is. combined with a voltage, the phase of which varies less rapidly with frequency, the constants of the circuit being such that the two voltages are in phase at the centre frequency and opposite in phase at the limiting frequencies of the band. The second voltage may be derived from a resistance 15 in the input circuit, Fig. 1, or from a coupling 28 to a further tuned circuit 25, 26 in the output of valve 14, Fig. 5. The arrangement gives a characteristic curve as shown at 20, Fig. 3, having a zero response at 10 kc. on each side of the centre, and this may be converted to the characteristic 22, Fig. 4, by increasing the coupling of the tuned circuits or by symmetrically detuning two of the circuits. In the arrangement shown in Fig. 5, inherent input capacity 30 in the valve 16 may be neutralized by a connection over a condenser 31 to part of winding 28.
Patent GB-354597-A (GB)
Title: Improved means for feeding cigarettes or other rod shaped articles to packing or other machines
IPC: B65B19/04
Filed: 1930-09-23
Abstract: 354,597. Step-by-step conveyers. UNITED CIGARETTE MACHINE CO. AKT.-GES., 5, Junghansstrasse, Dresden, Germany. Sept. 23, 1930, No. 28451. Convention date, Oct. 22, 1929. [Class 78 (i).] A device for feeding cigarettes &c. to machines comprises reciprocating pushers c, which push the cigarettes endwise along the table b, formed to project downwardly from bars d, the ends of which are formed as nut-like parts e, both on their upper and lower surfaces, so that by being moved in a vertical plane the nuts may come into contact respectively with the worms f, g to reciprocate the pushers as desired. Guides t maintain the nuts in contact with the respective worms and at the end of the forward or backward strokes vertically movable slides k, m, formed with slots r, r<1>, and actuated by cams q, q<1>, receive the pusher bars and either raise or lower them so that the nuts contact with the appropriate worms f or g. The pitch of the worms may be the same throughout, varying along the length or of opposite hand, to give varying speeds of movement and to accommodate modification of the worm-driving means. In the case of worms of varying pitch the nut-like parts e are formed as a projecting pin or roller.
Patent GB-694153-A (GB)
Title: Electric oven for the burning of ceramic articles
IPC: A61C13/20
Filed: 1951-12-05
Abstract: 694,153. Dental furnaces. NEOLIZA ZAHNFABRIK AKT.-GES. Dec. 5, 1951 [Dec. 8, 1950], No. 28502/51. Class 51(ii) [Also in Group XI] An electric oven for baking ceramic articles e.g. artificial teeth comprises a heating chamber 10 divided into several compartments by horizontal plates 13 carrying heating resistances, the chamber being enclosed by an airtight double casing 4 having an internal lining of loosely stacked blocks 9 of refractory material enclosing the heating chamber, a partial vacuum being maintained in the heating chamber 10 and in the casing 4 during use. The casing 4 comprises a welded annular cylinder welded to a rear plate and having at the front a circular iron door 1 with a packing 3 to bear on the front of the casing. The shaped ceramic or clay bricks 9 may be numbered to aid ready assembly. Heating resistance wires (see Group XI) are mounted in slotted circular recesses in steatite plates 13, which are slid at their edges into grooves 12 in vertical steatite side plates 11. The blocks 9 and side plates 11 are recessed or apertured for the passage of connecting wires to the supply wires 21 or for the insertion of pyrometers 22 or thermostats. The top plate 14 of the heating chamber carries no heating resistances. The casing 4 and heating chamber are connected through valved pipes 31, 32, 33 to a vacuum pump 29, and filters 36 such as wire gauze or glass wool are placed at the inner ends of the pipes, to prevent entry of solid particles when air is admitted to the oven. The front of the oven is heat insulated by removable bricks 19, which are apertured at 27 to allow passage of a bolt holding them together:
Patent GB-1471229-A (GB)
Title: Self-teaching machine for binary logic
IPC: G09B23/18
Filed: 1974-06-27
Abstract: 1471229 Educational appliances; logic J M HOMBS 27 June 1974 [5 July 1973] 28558/74 Headings G5G and G4H A machine 10 for teaching logic embodies a plurality of universal gates each of which can be programmed to provide logic functions such as AND, OR, NAND, NOR, and EXCLUSIVE- OR, such a universal gate being described with reference to Fig. 7. The universal gates are interconnected by an electrical network including sensors, operable selectively to connect the output terminal of at least one gate to at least one input terminal of any second gate. Respective indicators 24 are associated with the gates, and selector switches 20 are operable to provide logic signals to the gates. In use, a student positions on the machine a sheet 12 bearing a logic drawing of the system to be studied. The drawing bears markings or openings which are detected by the said sensors which operate automatically to programme particular universal gates 20 so that each provides the necessary function required by the drawing. The student then enters various logic situations via the switches 20 and the machine displays, by way of the indicators 24, the stepby-step logic flow through the network for each logic situation introduced. As shown in Fig. 7, each universal gate coinprises an OR gate 112 associated with inverters 124, 126, 142 controlled by respective sensors 128, 130, 146 responsive to, and thus programmable by, the markings on or openings in the sheet 12, the sensors being constituted by switching means such as pairs of terminals arranged in a matrix pattern and associated with photo-transistors, field effect devices which can detect standard slightly conductive carbonblack ink, a resilient conductive layer, or a conductive pressure pad (Figs. 8 to 13, not shown).
Patent GB-1384869-A (GB)
Title: High frequency tube apparatus
IPC: H01J23/36
Filed: 1958-12-19
Abstract: 1384869 Reflex klystrons VARIAN ASSOCIATES 19 Dec 1958 2858Q/60 Divided out of 1384866 Heading H1D The description is as in Specification 1,384,866 but the claims are directed to the vacuum seal.
Patent GB-448546-A (GB)
Title: Method of manufacturing metal sheets
IPC: B21B1/38
Filed: 1935-10-18
Abstract: 448,546. Rolling sheets. RASSELSTEINER EISENWERKS GES. AKT.-GES., and LOEHR, W., Neuwied Rasselstein, Germany. Oct. 18, 1935, No. 28855. Convention. date, Jan. 23. [Class 83 (iv)] In the rolling of sheets, rough rolled bars are rolled individually in a three-high mill and are then re-rolled in packs of two or more to a thickness suitable for doubling and to a length permitting cutting up into two or more equal packs each of which is finished either doubled or single in a two-high mill.
Patent GB-598511-A (GB)
Title: New or improved instrument for drawing ellipses
IPC: B43L11/04
Filed: 1945-10-31
Abstract: 598,511. Ellipsographs. HILLS, W. H. Oct. 31, 1945, No. 28918. [Class 97 (iii)] An instrument for drawing substantially elliptical curves comprises a beam 3 having at one end an adjustable throw crank 8 arranged to be rotated about a vertical axis by a knurled knob 9 and at the other end a horizontal guide 13, a rod 15 hinged at one end to the crank 8 and adapted to reciprocate at its other end in guide 13 and an adjustable stylus 16 on the rod 15. Locating points 5 are provided in the same plane as that containing the axes of the guide 13 and crank 8. The setting of the throw of the crank 8 can be determined in relation to scale 7 on the beam 3 and the bar 15 may carry a scale to position stylus 16.
Patent GB-822596-A (GB)
Title: Preparation of 2, 6-diethylpiperazine
IPC: C07D295/023
Filed: 1957-09-16
Abstract: 2 : 6-Diethylpiperazine is prepared by heating ammonia and di-(2-hydroxybutyl) amine under pressure at least sufficient to maintain the di-(2-hydroxybutyl) amine in the liquid phase, in the presence of a nickel or cobalt hydrogenation/dehydrogenation catalyst.  The reaction is preferably carried out at 125-250 DEG  C. in a hydrogen atmosphere suitably in aqueous solution.
Patent GB-1279929-A (GB)
Title: Improvements in or relating to error marking
Inventor: MCKEAN JOHN MATTHEW
IPC: G06K5/00
Filed: 1970-06-16
Abstract: 1279929 Statistical apparatus INTERNATIONAL COMPUTERS Ltd 28 April 1971 [16 June 1970] 29064/70 Heading G4M Errors in a punched tape having rows of indicia punched in a predetermined area are indicated by punching a smaller hole outside the area and in line with a row of indicia containing an error.
Patent GB-275458-A (GB)
Title: Improvements in or relating to locomotives
IPC: B61C1/02
Filed: 1926-11-19
Abstract: 275,458. North British Locomotive Co., Ltd., and Black, J. Nov. 19, 1926. Axle - trucks a n d bogies.-A sliding support for the main frame of a locomotive on a bogie truck comprises a casing 20 on the main frame 2 enclosing a spring 25 and a slidable bolt 17 with a part-spherical bead 16 resting in a cup 14 which can slide on a channelled plate 9 fixed to the bogie frame 12. Any vertical movement is checked by springs 27, 28, the latter being held between plates 29, 31 sliding on bolts 32 fixed to the casing 20. A pin 34 fixed to the plate 29 locates the spring 28 during sliding movement of the cup 14 on the plate 9.
Patent GB-1194194-A (GB)
Title: Method and Apparatus for Producing the Simulated Effect of a Flame.
Inventor: TOUGE RENE
IPC: F24C7/00
Filed: 1967-06-26
Abstract: 1,194,194. Simulating flames; lamps. R. TOUGE. 26 June, 1967 [29 June, 1966], No. 29344/67. Headings F4R and F4W. A simulated flame effect is produced by apparatus wherein light from a lamp source 1 and flicker producing device 7 is reflected from a multiple reflecting surface comprising a series of corrugated metal strips 10 mounted between supports 13, 14. Knobs 16 provide means for varying the angle of inclination of the strips 10 to the horizontal. In a modification, Fig. 4, not shown, the supports 13, 14 are curved and an additional similar reflecting surface together with associated light source are interposed between the source 1 and the strips 10. The reflecting strips 10 may be made of metal, glass or a transparent plastics material. In further embodiments (Figs. 12a to 12e) the light source is mounted either centrally or eccentrically on a platform which is rotated by a motor, the electric supply to the light source during rotation being cyclically interrupted. The strips 10 may be arranged to form a continuous concave reflecting surface facing the source 1 (Fig. 6a). In the alternative construction shown in Fig. 8, the light source 13 comprising a lighting tube is surrounded by a rotatable cylindrical screen 32 having irregular shaped opaque zones (see Fig. 9, not shown) forming the flicker producing means. Alternatively a similar pattern of zones may be silicon painted on to the tube 31 which is rotated by a motor (53, Fig. 13). Moulded wooden logs 39 together with plastics material 38 constitute a decorative screen 37.
Patent GB-1053169-A (GB)
IPC: G21K5/08
Filed: 1964-07-15
Abstract: 1,053,169. Electron microscopes. SIEMENS & HALSKE A.G. July 15, 1964 [Sept. 9, 1963], No. 29408/64. Heading H1D. The object cartridge 4 in an electron microscope is in two independent parts, namely a first part 5 which carries the object carrier 14 and the diaphragm 15 and which is inserted in the object table 7 and held at ambient temperature and a second surrounding part 6 which, as shown, carries the diaphragm 16, is attached to the lens system 3 by plastic heat insulating layers 9 and is held at a low temperature through a cooling rod 8 or, alternatively, through the cooled parts of the lens system, arranged to be superconductive; object carrier support wires or struts 12a, 12b allow pump communication to the space between the object carrier 14 and the diaphragm 15 or the object carrier may be attached to the first cartridge part by a wire mesh. In modifications the diaphragm 16 may be attached to the lens system 3 or its function taken over by the aperture diaphragm 21. In the latter case cartridge part 6 is extended to the vicinity of the diaphragm 21 or even beyond it to the position of the first intermediate image. The second cartridge part may be provided with a thermocouple and the object table 7 and the diaphragm slider 22 may be provided with heating devices.
Patent GB-1244132-A (GB)
Title: Improvements in or relating to cultivating implements
IPC: A01C7/08
Filed: 1969-02-10
Abstract: 1,244,132. Cultivating implement. C. VAN DER LELY N.V. 10 Feb., 1969 [16 Feb., 1968], No. 29486/70. Divided out of 1,244,131. Heading A1B. The subject matter is identical with that of the Specification 1,244,131 but the claims relate to the sewing mechanism drive.
Patent GB-298902-A (GB)
IPC: B61F3/12
Filed: 1928-10-15
Abstract: 298,902. Budurus, C., (Assignee of Christoph & Unmack Akt.-Ges.). Oct. 14, 1927, [Convention date]. Axle-trucks and bogies.-An articulated road or railway vehicle carriage in which the parts are adapted to turn in the horizontal plane comprises a. central carriage part a, Fig. 1, and two end carriage parts e which support the central carriage through pivots b. The bogies d are spring supported and carry bodies e of a similar profile to the central carriage part a, and doors f are provided in the end part e for the entrance of passengers to the central carriage part a.. The spaces between the end carriage parts e and the central carriage part a are bridged by bellows g. Two or more articulated carriages are connected by rigid coupling rods i, the adjacent ends of the carriages being connected by a bellows h. In a modification the adjacent ends e<1>, e<1>, Fig. 2, of two articulated carriages are slidably mounted on the bogies and abut so as to leave a gangway of the full width of the vehicle, a coupling rod i<1> connecting the two vehicles together. The coupling rods may be locked against pivotal movement by depending members on the bogie. The end carriage parts c serve as the driver's cab in which the driving engine may be placed. The central part a may, in addition, be supported by bogies.
Patent GB-173480-A (GB)
Title: Improved process and apparatus for starting three-phase induction electric motors
IPC: H02P1/32
Filed: 1921-11-07
Abstract: 173,480. Siemens - Schuckertwerke Ges. Dec. 30, 1920, [Convention date]. Alternating - Current induction machines; dynamos, regulating; motors, controlling. - To start induction motors, the stator windings are changed from star to delta connection by inserting resistances and breaking up the neutral point, without interrupting the circuit. The sequence of changes according to one modification is shown in Figs. 1 to 4, in which X, Y, and Z are the three phases of the stator, and A, B, and C, the three resistances inserted in parallel with them. According to another modification, the resistances are inserted in series with the respective phases, and parallel connections are made as shown in Fig. 8 before breaking up the neutral point. In both cases the resistance is finally cut out. The invention may be applied to changing the connections of a dynamo from delta to star.
Patent GB-1089606-A (GB)
Title: Synchronizing devices for couplings
Inventor: SCHULDT KLAUS
IPC: F16D23/06
Filed: 1966-07-02
Abstract: 1,089,606. Positive clutches. AUTOMOBILWERK EISENACH, VEB. July 2, 1966, No. 29789/66. Heading F2C. In a friction synchronized positive clutch wherein initial movement of a slidable shift sleeve 6 splined at 7 to a hub 4 fast with a shaft 1 acts through spring-pressed balls 17 and pins 15 carried by synchronizing rings 12, 13 to move the latter into engagement with coned friction surfaces 10, 11 on gears 2, 3, relative rotation between the rings 12, 13 and hub 4 moves collars 16 of the pins 15 into recesses (Fig. 3, not shown) in the splines 7 to baulk further movement of the sleeve 6 and engages the inner ends of the pins 15 with cam surfaces 18, 19 on the hub 4 to provide an additional axial force on the rings 12, 13. At synchronism the force on the sleeve 6 moves the pins 15 out of the recesses in the splines and slides the sleeve 6 axially to engage teeth 8, 9 on the gears 2, 3. The pins 15 are carried by axially extending lugs 14 on the rings 12, 13.
Patent GB-280544-A (GB)
Title: Improvements in or relating to the cylinders of internal combustion engines
IPC: F02F1/36
Filed: 1927-11-08
Abstract: 280,544. Ricardo & Co., Engineers (1927), Ltd., and Soc. Industrielle et Commerciale de Gennevilliers. Nov. 9, 1926, [Convention date]. Cylinders, combustion chambers of. - To produce turbulance a cylinder head, having one or more inlet valves D, is approached, with minimum mechanical clearance, by the piston C, and the charge is forced through a constricted passage F into a lateral combustion chamber E, provided with a sparking plug H and one or more exhaust valves G<1>. The cylinder head may be curved or conical, the piston face being correspondingly shaped; the valves need not be poppet valves as shown. Specification 148,046 is referred to.
Patent GB-428190-A (GB)
Title: Improvements relating to agitators for washing machines
IPC: D06F13/00
Filed: 1934-10-19
Abstract: 428,190. Washing-machines. HOLT, T., 91, Rectory Road, Burnley. Oct. 19, 1934, No. 29915. [Class 138 (ii)] An agitator comprising a frame A rocked on horizontal journal pins H is provided near the bottom with a grid B presenting a series of zig-zag slots C extending from one side of the agitator to the other or extending vertically or in an inclined direction.
Patent GB-831910-A (GB)
Title: Improved method for production of 1-olefines
IPC: C07C5/25
Filed: 1957-09-24
Abstract: 1-olefines are produced by the isomerization of non-terminal double bond olefines over a chromia-alumina catalyst at at least 950 DEG  F. in the presence of at least one mol. of steam per mol. of olefine. Suitable conditions are 950-1300 DEG  F., an L.H.S.V. of 50-5000 vol./vol./hr. with a 1 to 30 : 1 steam to olefine molar ratio.  The catalyst may contain 5 to 60% chromium oxide and the balance alumina. Olefines containing 4 to 8 or more carbon atoms in the longest straight chain are suitable such as butene - 2, 2 - methylbutene - 2, pentene - 2, 3-methylpentene-2, hexene-2, hexene-3, 3-ethylhexene-2, 2-octene, 3-octene, 4-octene and 4-ethyloctene-3.  The catalyst may be steamed at intervals and regenerated by oxidation.  Unconverted non-terminal double bond olefine may be separated and recycled. Specifications 790,195 and 804,641 are referred to.
Patent GB-271748-A (GB)
Title: Improvements in or relating to travelling trunks, boxes and the like
IPC: A45C13/03
Filed: 1926-11-26
Abstract: 271,748. Buxton, P. M., and Bosanquet, N. E. T. Nov. 26, 1926. Garment racks.-In a trunk, box, &c. having a folding rack device for garments, the rack is attached to the body and lid of the trunk so that when the latter is opened and stood on end it is held firmly in that condition by the rack. As shown, the rack comprises inner and outer arcuate rods q, c, the outer rod e being jointed at one end to a tubular post b secured in a corner of the bottom of the trunk and the rod q being hinged to a, corner of the lid by a universal joint r. When the trunk is stood on end and opened about 90‹, the free end of the rod e is secured by a spring catch i fixed in the opposite corner of the lid and the free end of the rod q engages a. hollow post c secured in a corner of the bottom of the box. Metal or other hangers t have hooked ends engaging the posts b, c when the trunk is closed and can be slid along the arcuate rods when the trunk is opened and the rods fixed as described. Curved arms x for supporting coats &c. may be hooked into tabs u projecting from the hangars.
Patent GB-1477363-A (GB)
Title: Latent catalyst systems for cationically polymerizable materials
IPC: C08F2/00
Filed: 1974-07-05
Abstract: 1477363 Latent polymerisation catalysts MINNESOTA MINING & MFG CO 5 July 1974 [6 July 1973] 29996/74 Heading B1E [Also in Divisions B5 and C3] Heat activatable catalysts comprise a Li, Na, Ag, Ca, Sr, Ba or Pb salt of a fluorinated sulphonic acid (I) or sulphone (II) of formula or wherein n is 1 or 2; M is the metal; R is any substituent which does not prevent acidity of the acid precursor of the metal salt; and R f  is a fluorinated, saturated, monovalent, non- aromatic, organic radical with a backbone of carbon-carbon linkages containing at least one terminal perfluoromethyl group and optionally having hydrogen and/or chlorine substituents but not more than one of either for every two carbon atoms, and, per equivalent of fluorinated compound, 0.2-2 equivalents of a thermally-labile t-alkyl ester of an acid that forms a chelation complex with the cation of the metal salt. A soluble buffering agent such as an alkali metal hydroxide, alkoxide or carboxylate, an alkaline earth or other metal carboxylate, or a quaternary ammonium. hydroxide may also be present. The esters may be t-alkyl esters of phosphorus acids, chromic acid, vanadic acid, polycarboxylic acids or substituted monocarboxylic acids. Reference has been directed by the comptroller to Specifications 1298401 and 1314561.
Patent GB-405417-A (GB)
Title: Improvements in railway carriage suspensions
IPC: B61F5/02
Filed: 1932-10-27
Abstract: 405,417. Railway vehicles. COCHRANE, W., 62A, Dennington Park Road, West Hampstead, London. Oct. 27, 1932, No. 30073. [Class 103 (vi).] The suspension for railway vehicles comprises long uncambered springs extending transversely across the bogie &c. the springs being linked to the bogie frame and being placed in longitudinal tension. As shown the swing bolster c, Fig. 2, comprises one or more flat leaf springs suspended on links f or having the ends slidable in guides. The ends of the spring c are connected by bolts g to springs g<3> which stress the spring in the direction of its length. The bolster c supports a king-pin e about which swivels a spring j supporting the vehicle body, the ends of the spring being supported on rollers j<2> running on a surface on the bogie frame. The axles need not be sprung but if desirable they may be supported on a spring L, Fig. 4, slidable at the ends in guides o and placed under longitudinal tension by springs n. Specification 405,397 is referred to.
Patent GB-511166-A (GB)
Title: Improvements in or relating to surgical dressings and the manufacture thereof
IPC: A61L15/30
Filed: 1937-11-03
Abstract: 511,166. Fabrics. GELINSKY, E. Nov. 3, 1937, No. 30102. Void. Convention date, Jan. 28. [Class 142 (iv)] A surgical dressing is woven from fabrics, threads, films or bands of cellulose, or cellulose compounds, or synthetic resins, or compounds. thereof. The polymerisation products of vinyl, acryl and polystyrol compounds, or film strips of cellulose hydrate, acetate or nitrocellulose may be used. These may be treated with a vapour or liquid so that they will not shrink, or the finished fabric may be so treated. Threads or bands of fibrous material may be treated with rubber, cellulose, synthetic resins &c. and made into fabrics. Cotton, linen, paper, or cellulose which may 'be reinforced by inserted threads are stated to be suitable materials. Fabrics may be coated' by spraying with non-irritant materials or'metals. The fabrics may be provided with adhesive and may be used for roller bandages, sanitary towels, diapers, babies' napkins &c.