baber/WOPTO huggingface dataset:
Patent GB-188875-A (GB)
Abstract: 188,875. Leuckert, W. Oct. 4, 1921. Look-out reflectors.-A look-out reflector on a motor vehicle is combined with a bracket for an electric lamp in such a way that the lamp may be switched on and off by adjustment of the mirror. The reflector 18 is mounted with provision for slight adjustment on a hollow spherical head 3 having a sleeve extension 4 capable of limited rotation on a tube 10 clamped to the edge 2 of the windscreen, such rotation being limited by a screw 15 fixed in the sleeve 4 engaging a slot which extends partly round the circumference of the tube 10. The electric lamp 19 is secured in the usual bayonet socket 37 which is rotated relatively to the base 40, so that the two contacts 36 en the lamp are moved into or out of contact with the usual spring plungers 41 on the base as the reflector is turned. This is effected by securing, the tubular socket 37 to the sleeve 4 by means of the enlargement 42, while the base 40 is secured to the tube 10 by a screw 44 which passes through a part circumferential slot in the socket 37. A modification is described suitable for attachment to a mud-guard.
Patent GB-1059653-A (GB)
Title: Preparation of vinyl fluoride
IPC: C07C17/25
Filed: 1964-05-06
Abstract: Vinyl fluoride is prepared by heating CHClF.CH3 at 400-1000 DEG  C. for 0.01-10 seconds in the presence of a catalyst consisting of copper, a copper salt or a mixture thereof. The CHClF.CH3 may be prepared by treating vinyl chloride with HF in mole ratio 1 : 1 to 1 : 2 at 80-100 DEG  C. and 20-25 kg./cm.2 for 5-8 hours, or at normal pressure with SnCl4 as catalyst.
Patent GB-430548-A (GB)
Title: Improvements in wireless or radio aerials
IPC: H01Q1/36
Filed: 1934-06-28
Abstract: 430,548. Aerials. BAXENDALE & CO., Ltd., 41, Miller Street, Manchester, and COOK, R., 1, Warren Avenue, Cheadle, Cheshire. June 28, 1934, No. 19069. [Class 40 (v)] An aerial comprises a coil a of strip metal or wire supported by a central rod a<1> resting upon and passing through an insulator b at its lower end, the outer end a<3> of the coil being anchored in a hole in the insulator which is provided with a flange b<1> to allow moisture to drip therefrom. In other embodiments the general configuration of the coil is cylindrical or of mushroom shape.
Patent GB-950836-A (GB)
Title: Improvements in or relating to implements for laterally displacing crop lying on theground
IPC: A01D78/00
Filed: 1960-05-30
Abstract: 950,836. Haymaking machines. C. VAN DER LELY N.V. May 30, 1960 [June 20, 1959], No. 19099/60. Heading A1F. In a rake-wheel type of haymaking machine which is attached to a tractor so that it can be propelled in two alternative opposite directions, for side-delivery or another haymaking operation respectively, the rakewheels are provided with two sets of tines, each set engaging the crop in one of the two directions of travel, and the rake-wheels themselves are mounted so that they can be moved between the two working positions without altering the attachment be tween the implement and the tractor. As shown, the main frame 1, 2, is L-shaped and is secured to the front of a walk-type tractor 33 by lugs 37A, 38A the left-hand lug 38A having alternative attachment holes so that the frame may be adjusted slightly about a vertical axis defined by the right-hand lug. The rake-wheels 14-16 are carried on cranks 11-13 mounted on stub-axles 3, 4, 5 projecting from the frame at an upward inclination of approximately 10 degrees. The cranks can be locked by detents 27-29 in three alternative positions about the axes of the stubshafts; these correspond to the full- and dotted-line positions shown in Fig. 1 and a third, raised, position, for transport. In the full-line position, the device travels in the direction F, for side-delivery and in the dotted-line position it operates as a tedder, travelling in the direction R. The frame includes a single caster 1A. Each rake-wheel includes a hub 41 integral with a plate 42 around which are secured a ring of flat-headed bolts 43A. Hairpin-shaped tines 44, 45 are secured beneath the head 43 of the bolt and under the nut 46 and these are bent, after passing through a rim 47 to form the two series of tines 48, 50. All the tines are bent backwardly in relation to the direction rotation of the wheel, and the tines 50 are additionally bent to lie on a frustoconical surface, which is perpendicular to the ground at the lowest point of the wheel when the latter is in the tedding position. Specification 950,837 is referred to.
Patent GB-352705-A (GB)
Title: Improvements in baby carriages and like vehicles
IPC: B62B9/02
Filed: 1930-06-24
Abstract: 352,705. Perambulator and like vehicle suspensions. PASCOO, A., 793, Hewitt Place, New York, U.S.A. June 24, 1930, No. 19227. [Class 108 (ii).] In a baby carriage or like vehicle having front and rear sets of swingingly mounted wheels for maintaining the carriage body in an horizontal plane while being rolled from one level to another, manually operated means are provided for locking each set of wheels in its highest position and automatic means for locking each set in its lower position to which it swings under its own weight or under the action of springs after release by the manually operated means from the higher position. The carriage body 13, Fig. 1, is supported by springs 12 on the chassis 11 which includes a main channelbar 23, Figs. 6 and 9, bolted to two transverse bars 16, 17, having U-shaped ends 18,19 serving as brackets for embracing the side rails of the chassis frame. The front and rear axles are carried respectively by pairs of hangers 26, 27, pivotally supported by bolts 24, 25 projecting from the brackets 18,19. Stop-plates 20,21 on the brackets 18, 19 limit the movement of the wheels when swinging to their lower position, and locking-levers 33, 34 pivoted to the bar 23 are notched at 37, 38 to engage the axles 28, 29 and prevent backward movement. The levers 33, 34 are slotted at 39, 40 to receive pins 41, 42 on the ends of bell-crank levers 43, 44, pivotally supported on the axles 28, 29, the other ends of the levers 43, 44 being connected to curved links 45, 46 in turn pivoted to bumper arms 47, 48 depending from the bar 23 and extending in front of the wheels. For locking the wheels in the raised position levers 49, 50 are provided having hook-ends 51 for engaging the axles 28, 29, the upper ends of the levers being connected to an actuating rod 53 having a handle 54. In operation, assuming that the carriage is being pushed on a level surface with the wheels raised, upon reaching, say, a street crossing, the rod 53 is pulled to release the hookends 51, 52 of the levers 49, 50 from the axles and the carriage is pushed forward without tilting until the front wheels 31 clear the kerb and drop under gravity or under spring-action to the street level as shown in Fig. 1, where they are automatically locked in position by the notched portions 37, 38 of the levers 33, 34. The rear wheels operate similarly. On reaching the opposite kerb a roller 55 in the front bumper arm 47 strikes the kerb and the arm is pushed rearwardly causing the link 45 to swing the bell-crank lever 43 and thus lift the locking- lever 33 from the axle, continued force against the roller causing the wheels to reach their raised position. The second bumper-arm 48 then comes into contact with the kerb and the back wheels are raised. When both sets of wheels are on the higher level, the handle 54 is pushed inwards and causes the levers 49, 50 to lock the axles.
Patent GB-688454-A (GB)
Title: Magnetometers
IPC: G01R33/038
Filed: 1951-08-15
Abstract: 688,454. Magnetometers. KOULOMZINE, T. Aug. 15, 1951, No. 19281/51. Class 37. A magnetometer comprises a magnet attached to a float and mounted to oscillate about a horizontal axis, immersed in a liquid, the centre of gravity of the magnet and float being displaced both horizontally and vertically from the axis of the magnet. A float 5, Figs. 1, 2, carries two bar magnets 4, and is pivoted at 6 ; adjustable weights 7, 9 allow the centre of gravity g to be displaced both horizontally and vertically from the centre of symmetry; a liquid 3 (e.g. a mixture of ethyl alcohol and carbon tetrachloride) fills the container and is of approximately the same density as that of the oscillatory system. A mirror 11 allows deflection due to the vertical component of the earth's magnetic field to be measured. Vanes 17 provide damping. In a modification for measuring the horizontal component of the earth's magnetic field, the magnets are disposed vertically, Figs. 3 and 4 (not shown).
Patent GB-1491063-A (GB)
Title: Milling apparatus in combination with an automatic multi-spindle lathe
IPC: B23B11/00
Filed: 1975-05-08
Abstract: 1491063 Milling, milling attachments, work holding EUGENE MAITRE SA 8 May 1975 [14 May 1974] 19337/75 Headings B3T B3B and B3K In an automatic lathe means is provided to perform a milling operation on a workpiece which has or is to receive normal turning or screwing operations in its course of manufacture, the lathe is of the type having a central drive shaft 22 on which is axially displaceable a reciprocatable tool block 20 to which is secured in one of the mounting positions a workpiece clamping device 1 which includes a fixed jaw 9 and a movable jaw 17 supported in a frame unit 2. The movable jaw is provided with a fork like rear portion 18 in which is located an eccentric shaft 10, 13, which is pivotally movable by way of a lever 5 by a fluid actuated piston and cylinder assembly 26, 25. A milling attachment 33-36 is mounted on the machine frame so as to be transversely displaceable to the workpiece axis to permit the feed and return of a milling cutter 37 mounted on the attachment. In operation a workpiece 31 is located in a predetermined station and at the completion of a turning and screwing operation the slide block 20 is displaced with the clamping device which is actuated to clamp the workpiece at the instant it stops rotating, the milling slide 33 is then displaced so that the milling cutter moves transversely across a region of the workpiece to mill a flat surface thereon. Both the milling attachment and the tool block being returned to their initial positions. The length of the flat milled on the workpiece is controlled by the extent of travel of the milling cutter caused by controlled displacement of the tool block with respect to the milling cutter which moves the workpiece past the cutter.
Patent GB-134649-A (GB)
Title: Improvements in and connected with Machine Vices.
Inventor: NE EDWIN JOHN L
IPC: B25B1/24
Filed: 1918-11-26
Abstract: 134,649. Lane, E. J. Nov. 26, 1918. Addition to 113,321. Work-holders.-The groove 2 in a machine vice of the kind described in the parent Specification is of rectangular or other easily machined crosssection, and is provided at one side with a detachable coverplate 3, the sliding dogs 6 being correspondingly shaped. In some cases, the groove may be in two obliquely-arranged parts. The centre 18 is longitudinally adjustable in the dog 16 formed integrally with the headstock 14, which is laterally slidable on the adjustable bolts 8. These have spring pins 9 engaging with holes 13 in the bottom of the T-slots 20. When the headstock has been set, the nuts 15 clamp the headstock 14 in position.
Patent GB-293424-A (GB)
Title: Improvements in apparatus for spinning artificial threads
IPC: D01D5/04
Filed: 1928-07-04
Abstract: 293,424. Ruth-Aldo Co., Inc., (Assignees of Klein, M.). July 6, 1927, [Convention date]. Apparatus for making filaments.-The outlet orifices of the cells used in the dry spinning of artificial silk are fitted so that their cross sections can be reduced or increased at will. Suitable devices are those used for the objectives of optical apparatus or iris diaphragms as used in photographic apparatus. The devices may be applied to all the orifices, through which the thread passes, such as those in the diaphragms within the cell referred to in Specification 292,561.
Patent GB-909870-A (GB)
Title: Semiconductive pnpn devices
IPC: H01L29/41
Filed: 1961-05-30
Abstract: 909,870. Semi-conductor devices, WESTERN ELECTRIC CO. Inc. May 30, 1961 [June 10, 1960], No. 19470/61. Class 37. The turn-off gain of a PNPN(NPNP) device is made large by arranging that the total α is slightly greater than unity, the α of one of the included transistors being less than but close to unity and the other greater than but close to zero. In the arrangement shown in Fig. 2, the NPN transistor is made by conventional methods to have a gain of about 0.99 but the PNP transistor is made to have a gain of about 0.05 by making the injection efficiency γ low. This is achieved in practice by making the sheet resistance of P zone 24 much higher than that of base zone 23. Actual figures are 1000 ohms/ square for the P zone and 50 ohms/square for the N zone. The device may be produced by starting with a N-type silicon base 23, the P and N zones 22, 21 being produced by successive diffusion of boron and phosphorous respectively and P region 24 is produced by phosphorous diffusion. In a further embodiment (Fig. 3) injection efficiency is reduced by causing electrode 36 to shunt most of the current from the contact 36 around the emitter junction. The resistance in the N 2  base region 33 is made large compared to the forward resistance of the emitter junction. P+ region 38 is provided to ensure that the current flowing across the junction consists primarily of holes injected into the N region 33. In the arrangement of Fig. 4, α is made low by making #, the transport factor low. This is achieved by centrally locating and reducing the area of P zone 42. Further, a pair of low resistance electrodes 46, 48 are provided so that minority carrier emission tends to accumulate in their region. Specifications 813,862, 817,905, 817,906 and 909,869 are referred to.
Patent GB-615934-A (GB)
Title: Improvements relating to electron-discharge devices
IPC: H01J40/06
Filed: 1946-06-29
Abstract: 615,934. Electrode materials and processing. SOMMER, A. June 29, 1946, No. 19479. Class 39 (i)] In the manufacture of an electron discharge device having a photo-electric or secondary emitting electrode, the electrode comprising a metal deposit which has been exposed to air, is subjected to a discharge in hydrogen in order to reduce or substantially eliminate the deleterious effect which would result from such exposure, and then without further exposure to air is sensitized in vacuo. As applied to the manufacture of a photo-electric cell, antimony is deposited on a support which is subsequently sealed into the envelope to form a photoelectric cathode. The envelope is baked in vacuum at a temperature of between 250‹ and 300‹ C., and after cooling hydrogen is admitted to a pressure, for example of the order of 1/10 mm. of Hg. A discharge in the hydrogen is then effected by applying a potential, for example 500 volts, between the cathode and another electrode, the latter being at the higher potential, and maintained, for example one minute or less. The hydrogen is then removed from the envelope and while maintaining the vacuum sensitization is effected by admitting caesium to react with the antimony, there being no further baking before sensitization. In a modification, the discharge may be effected by a high-frequency oscillatory field. The invention may also be applied to electron multipliers having secondary emitting electrodes and to television transmission tubes having photocathodes or photo-sensitive mosaic screens.
Patent GB-950987-A (GB)
Title: Improvements relating to tape storing means for tape recording and scanning apparatus
IPC: G11B23/12
Filed: 1961-05-30
Abstract: 950,987. Feeding webs. SIEMENS & HALSKE A.G. May 30, 1961 [May 30, 1960], No. 19482/61. Heading B6B. [Also in Division G5] A random storage tape bin for receiving a tape loop forming between the recording and scanning stations, 1 and 2 respectively, of a recording and scanning apparatus in operation has a single opening in the top of the bin which serves as an inlet and outlet for the tape. In one embodiment, Fig. 1a and Fig. 1c, the loop of the tape 4 is fed through an aperture 7 and is guided by a freely rotating roller 14, a leaf spring 12 and an extension 11 of the periphery wall 9 of the bin on to a drive friction member comprising a driven roller 13 having its peripheral surface formed of a material having a high coefficient of friction compared to that of the tape material. The leaf spring 12 which applies a force radially to the roller 13, also applies a tensioning force on the outgoing tape 4 travelling to the scanning station 2. In a modified form (not illustrated) the friction roller 13 is bobbin shaped, having at the two ends of the roller conical guide flanges separated by a cylindrical portion of the roller, between which flanges the incoming tape edges are gripped. In another embodiment Fig. 2, the driven friction member is a friction band 16 mounted over two rollers 17 and 18 one of which is driven. The storage bin is modified so that the bottom has a somewhat parabolic shape. In three other embodiments, Figs. 3a, 4a and 5a (not shown) the storage bin has a circular cross-section, the side walls of which may be mounted to rotate freely, or they may be rotated by the same means driving the friction means. This enables the outgoing tape to be withdrawn easily. In another embodiment of the feeding means, Fig. 4b, the driven roller 23 has a flange 35 and a sleeve 34 of a material with a higher coefficient of friction than the tape. The freely rotating guide roller 24 has a flange 36. With this arrangement, the tape 4 takes up the position shown. In two other embodiments of feeding means, Figs. 3b and 5b (not shown), each has one driven roller and a freely rotating guide roller.
Patent GB-1001746-A (GB)
Title: A process for the production of isocyanuric acid derivatives
IPC: C08G18/02
Filed: 1964-05-12
Abstract: Isocyanuric acid derivatives are prepared by polymerizing one or more isocyanates in the presence of at least one compound which contains, once or several times in the molecule, an ethyline imine ring of the formula <FORM:1001746/C2/1> in which the radicals R represent hydrogen or aliphatic or aromatic hydrocarbon atoms which may contain substituent groups or hetero atoms. A tertiary amine is preferably employed as a co-catalyst.  However, the compound containing the ethylene imine ring preferably also contains a tertiary aliphatic amino group. The polymerization is preferably stopped by adding an organic or inorganic acid, acid chloride or acid anhydride in a stoichiometric quantity, calculated on the catalyst and the co-catalyst, or in excess of this quantity.  The activity of the catalysts used may be enhanced by the presence of N-substituted carbamic acid esters, which may be produced in situ by the addition of an alcohol to the reaction mixture.  Specified starting materials include alkyl, allyl, carboalkoxyalkyl, chloroalkyl, alkoxyalkyl, tetrahydrobenzyl, aryl, chloroaryl, nitroaryl, hydroxyalkylaryl and cycloalkyl isocyantes; alkylene, arylene, cycloalkylene and diphenylene ether diisocyanates; aryl and triarylalkyl triisocyanates; phosphoric acid tris-(4-isocyanatophenyl ester); 1-methyl-3,5,6-chlorbenzene-2,4-diisocyanate and 3,31 - diisocyanato - 4,41 - dimethyl diphenyl uretdione. Specification 809,809 is referred to.
Patent GB-864028-A (GB)
Title: Improved device for augmenting the momentum of a flow of fluid
IPC: F02K1/28
Filed: 1957-06-24
Abstract: 864,028. Propelling aircraft. BERTIN ET CIE. June 24, 1957 [June 25, 1956], No. 19797/57. Addition to 825,957. Class 4. [Also in Groups XXVI and XXVIII] A thrust augmenter for a vertical lift propulsion device comprises a convergent duct 1 which terminates in a neck 2 surrounded by an annular slot 3 formed by an annular duct 4. Duct 1 is attached as by arms 6 to a convergent-divergent duct 5 and in operation a fluid is passed into duct 4 and ejected as a thin annular divergent jet which induces and channels a flow through duct 1. The arrangement of duct 5 is such that it forms a solid continuation of the fluid jet from the point F at which the jet loses its momentum and effectiveness. In a further embodiment the fluid jet is liquid and duct 5 is so shaped that it acts as a collector for the liquid which is then pumped back to duct 4.
Patent GB-1220534-A (GB)
Title: Ink transfer medium and process for manufacturing such a medium
IPC: B41M5/10
Filed: 1969-04-18
Abstract: 1,220,534. Ink transfer medium. INTERNATIONAL BUSINESS MACHINES CORP. 18 April, 1969 [10 May, 1968], No. 19811/69. Heading D2B. [Also in Division C4] An ink transfer medium comprises a polymer binder layer having a transfer layer of ink-impregnated filler material embedded in the surface of the binder layer. This may be made by coating onto a polymer film a dispersion of an ink-receptive filler material in a solvent which is a solvent for the film, evaporating the solvent, and impregnating the filler material with a non-volatile ink. The binder layer may be of polyurethane, polyamide, polyester, polycarbonate, or polyethylene, and may contain up to 80% (by wt.) of a stiffening or complexing filler, e.g. carbon black. The binder layer may be supported on a temporary substrate, e.g. of polyethylene glycol terephthalate, polypropylene, polyethylene or paper, and this substrate removed after applying the transfer layer. The filler may be woodflour, asbestos fines, glass, diatomaceous earth, or a synthetic polymer such as powdered high-density polyethylene. The solvent may be ethanol, ethyl acetate, N-methyl-2-pyrrolidone, methylene chloride or toluene. Conventional ink compositions may be used e.g. containing dye-treated carbon black, nigrosine oleate or organic dyestuffs such as methyl violet base. The ink vehicle may be a mineral oil or a fatty acid or fatty acid ester. The transfer layer may contain 1-4 parts of filler to 1-2 parts (by wt) of ink.
Patent GB-866782-A (GB)
Title: Improvements in or relating to cooling systems for nuclear reactors
Inventor: FAWCETT SYDNEY
IPC: G21C15/08
Filed: 1957-06-24
Abstract: 866,782. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. June 24, 1958 [June 24, 1957], No. 19909/57. Drawings to Specification. Class 39(4). In a graphite moderator structure the fuel channels are lined by sleeves which leave a gap not more than 0.02 inch wide between the sleeve and the moderator filled by a static heat transfer fluid. The graphite slabs sit loosely to accommodate deflections of the sleeve, which may be double-walled for leak detection, the space being filledwith heat transfer fluid or a wire coil. The outer heat transfer fluid may be helium.
Patent GB-147866-A (GB)
Title: Heating or cooling plate for moulding presses
IPC: B29C43/36
Filed: 1920-07-09
Abstract: 147,866. Columbia Graphophone Manufacturing Co., (Assignees of Burroughs, C. F.). Feb. 7, 1918, [Convention date]. Heating systems and apparatus.-A heating or cooling plate for presses, work benches, &c. comprises a lower member a ribbed as at b on its lower surface to reduce the area of contact with the bed &c., and an upper member h furnished with ribs e<1> adapted to bear upon the member a to provide a series of concentric or parallel channels e, which are divided into two sets by radial partitions k, l engaging radial notches i in the member h and depending respectively into inlet and outlet pockets c, d in the member a. Fluid enters the pocket c through an inlet f, and is directed through the channels e in two directions by the partition k, which is formed with a tapered end k<1> and a wedge-shaped lower portion k<2>. The partition l is formed with a wedge-shaped lower portion n to ensure an equal flow through the passages e, the fluid passing from the pocket d through an outlet f<1>. The member h is secured by a ring g and screws g<2>, packing j ensuring a tight joint. Additional support may be provided by a central pillar m secured by a nut m<1>. As shown, the plate is of circular form and is adapted for heating a phonograph-record mould p, which is secured to the member h by gibs q and screws r; but the plate may be of other forms.