baber/WOPTO huggingface dataset:
Patent GB-742739-A (GB)
Title: Improvements in or relating to travelling wave amplifiers
IPC: H01P7/04
Filed: 1953-05-12
Abstract: 742,739. Travelling-wave tubes. WESTERN ELECTRIC CO., Inc. May 12, 1953 [May 17, 1952], No. 13243/53. Class 39 (1). In a travelling-wave amplifier the downstream end of the slow wave structure is supplied with input waves from a separate source and output is taken from the upstream end of the structure, interaction taking place between a wave component of negative phase velocity and the beam. The mode used is a spatial harmonic mode in which the wave traverses an integral number of wavelengths less the distance between the mid-points of adjacent slots while the beam traverses the latter distance only. Preferably the integral number is unity. The apparatus may be generally similar to that disclosed in Specification 714,832, Figs. 1-1D (not shown), using a slotted filter-type delay line. Alternatively a ribbon helix, Fig. 2, or an interdigitated delay line, Fig. 3A, may be used. Tuning.is effected by varying the beam voltage. In Fig. 2 the magnetically focused beam interacts with a wave of negative phase velocity travelling between input 66 and output 67. Ribbon 64 is preferably, but need not be, a helix. The helix may be formed by grooving a hollow cylinder, the pitch of the groove being tapered at each end for impedance matching. In Fig. 3A an annular magnetically focused beam is projected between two parallel arrays of interdigitated fingers 92 (only one array shown) extending from the broader faces of rectangular wave-guide 84. The lengths of the fingers taper gradually at the ends, as shown, for impedance matching, and the fingers interleave over the main portion of the line. 45 degree deflection plates 96 deflect the input and output waves into and out of the delay line. To compensate for the phase reversal of the field at each successive gap, the wave is made to traverse an integral number of half wavelengths less the distance between mid-points of adjacent gaps while the beam traverses the latter distance only. Specification 737,289 also is referred to.
Patent GB-437946-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M50/571
Filed: 1934-05-02
Abstract: 437,946. Batteries; couplings. LASS, E. W., D'este, Aldershot Road, Guildford, Surrey. May 2, 1934, No. 13261. [Classes 38 (i) and 53] A battery terminal is surrounded by a non-metallic cap 1, the lower edge 5 of which rests on the battery case 6. The cap is filled with anticorrosive material such as petroleum jelly which may be kept in position by a flange 4.
Patent GB-1180544-A (GB)
Title: A Transmission Control Especially for an Automobile Vehicle
IPC: F16D47/06
Filed: 1968-03-19
Abstract: 1,180,544. Change-speed control. FRANCAISE DU FERODO S.A. 19 March, 1968 [24 March, 1967; 15 June, 1967], No. 13282/68. Heading F2D. In a vehicle change-speed gear with fluid pressure servos controlling ratio-establishing friction clutches or brakes provision is made through a by-passing valve to supply a reduced servo pressure when a gear change is made from neutral to start the vehicle. In the arrangement shown a pump 80 supplies pressure liquid to the servos 83 through a line 82 provided with a regulating valve 84 and also supplies a torque converter or coupling 87 through a second line 85 and regulating valve 86. A cushioning valve 93 is mounted between the pump outlet 94 and by-pass lines 94a, 97, communication between the lines being controlled by a second valve 98 which in the neutral setting shown allows free communication, but when moved to the right when a gear change is initiated cuts off communication. In neutral the valve 93 is held open by a spring 96, and when gear is engaged to start the vehicle, although valve 98 is closed the reduced output of pump 80 at idling speed is insufficient to cause a pressure drop to close valve 93 so that the reduced pressure is supplied to servo line 82 and starting is effected without shock. When a normal gear change is made the pressure drop closes valve 93 and high pressure is supplied through line 82. A modification, Fig. 9 (not shown), includes in association with valves 85, 93 a solenoid valve (34) operated by movement of the gear lever (13).
Patent GB-132872-A (GB)
IPC: C22C32/00
Abstract: 132,872. Williams, A. L. W. Sept 25, 1918. Alarms operated by variation of electric resistance.-An alloy or composition for use in fire alarms and having a high electrical resistance when cold, but a progressively decreasing resistance when heated, is made by melting together copper and mica by means of a carbon arc or an oxyacetylene flame. When an arc is used, some carbon from the electrodes may be present in the product.
Patent GB-201285-A (GB)
Title: Improvements relating to sparking plugs
IPC: H01T21/02
Filed: 1922-05-11
Abstract: 201,285. Sphinx Manufacturing Co., Ltd., and Corbin, D. H. May 11, 1922. Sparking-plugs.-The inner end 9 is electrically welded to the remainder of the plug casing after the internal portions have been placed in position. The central electrode 4, mica wrapping 5 and casing bore are preferably tapered, the inner end of the mica wrapping being protected by a sleeve 6 of vitreous insulation such as glass or porcelain.
Patent GB-420275-A (GB)
Title: Process of manufacturing soluble starch
IPC: C08B30/12
Filed: 1934-05-03
Abstract: Starch and starch-containing materials are converted into soluble starch by the action of hypohalites on starch suspended in water together with or followed by the addition of nitrogen-hydrogen compounds or their derivatives, such as ammonia, ammonium bases, hydrazine, hydroxylamine, pyridine, amines and amides, aminoethyl alcohol, glycocoll, and ethylene diamide.  Suitable hypohalites are hypochlorites and hypobromites or mixtures thereof and they may be formed in situ e.g. from chlorine or bromine and alkalis or by the addition of bromides to hypochlorites.  The nitrogen-hydrogen compounds may also be formed in the starch suspension.  The products are thinly fluid and are stated to give a blue colour with iodine and do not reduce copper salt solutions, and may be used for dressing purposes.
Patent GB-135456-A (GB)
IPC: D03D49/06
Abstract: 135,456. Dumail, I. Nov. 19, 1918, [Convention date]. Letting-off warps.-Relates to automatic warptensioning apparatus of the kind in which a feelerarm is provided which moves in accordance with the decrease in diameter of the warp on the beam gradually to reduce the braking-action of the beam, and consists in the provision of an intermediate lever, mounted on a separate shaft, between the feeler-arm and the tension spring. The feeler-arm consists of a two-armed lever 4, 6 mounted on a shaft 5, a roller 3 on the arm 4 bearing on the warp over the full length of the beam 11, while a roller 7 on the arm 6 bears on a separately pivoted lever 8 connected at its free end to a spring 2 connected to the warp-tension lever 1 which controls the braking action on the beam pulley through the usual chain. Adjusting-screws 9, 10 are provided.
Patent GB-1551865-A (GB)
Title: Method of recovering immunoglobulin
IPC: C07K16/06
Filed: 1977-03-31
Abstract: The process for obtaining immunoglobulin from blood plasma or serum by precipitation with a polycondensed diol or polyol is carried out in the presence of a C4-C12-mono- or -polyalkanoic acid; caprylic acid is preferably used, and the process is preferably carried out at a pH of from 4.5 to 5.5. This increases the purity of the product and the yield.
Patent GB-161142-A (GB)
Title: Improvements in or relating to sets of ball-bearings
IPC: F16C19/54
Filed: 1920-05-18
Abstract: 161,142. Aktiebolaget Kullagerverken. April 1, 1920, [Convention date]. Ball bearings.-A self-adjusting ball bearing for railway &c. vehicles forms a selfcontained unit and comprises at least two sets of ballbearing units 1, 2 mounted in a common casing 7, which is mounted spherically and movable in a supporting casing 21. The inner bearing ring 10 of one set is movable axially on the shaft by means of a pin 11 and recess 12, while the inner ring 13 is secured to the shaft by a nut 15 and shoulder 14. A cover 16 is screwed into the casing 7. Resilient rings 19 are interposed between the outer bearing rings and between the rings and the casing so as to permit the rings to yield axially. The outer rings may be divided, the parts being separated by rings 8, 9.
Patent GB-1495072-A (GB)
Title: Railway vehicle suspensions
IPC: B61F5/02
Filed: 1975-04-03
Abstract: 1495072 Railway vehicle suspensions SOUTH AFRICAN INVENTIONS DEVELOPMENT CORP 3 April 1975 [5 April 1974 22 April 1974 11 Sept 1974] 13714/75 Heading B7L A bogie includes sub-frames 37 comprising extensions 40 secured to the bearing adaptors of wheel sets 16, the two extensions secured to one wheel set being joined by a cross-beam 42, and diagonal cross members 46 pivotally attached to the sub-frames. The extensions may extend from their associated wheel set towards or away from the opposed wheel set, Figs. 3 and 4 (not shown). The extensions may be pivotally connected to their associated bearing adaptors and/or beams 42, and the beams may have a series of apertures whereby the pivotal connection of the cross members 46 is adjustable in position. Friction damping means are provided between the cross members comprising circular plates 72, 74 attached to respective cross members and urged together by a back-up plate 76 attached to the plate 72 by spring-loaded bolts passing through aligned apertures 78.
Patent GB-434224-A (GB)
Title: Improvements in means for securing glass panes in glasshouses, forcing frames and the like
IPC: E04D3/14
Filed: 1934-05-07
Abstract: 434,224. Glazing. THORN, J. W., Oakfields, Brampton Road, Bexleyheath, Kent. May 7, 1934, No. 13755. [Class 20 (iii)] Relates to capping strips employed in the glazing, of forcing frames and the like and of the kind consisting of a sheet metal channel strip g adapted to embrace the upstanding tongue c of the glazing bar a with its flanges h bearing on the panes f. According to the invention, the strips are provided with upturned and downturned ledges r, q. The ledges q are formed at one end of the strip while the ledges r are formed adjacent the opposite end. In assembly, the ledges q of one strip engage over the ledges r of the strip below. The ledges r form supports for the panes f and their spacing from the end of the bar determines the degree of overlapping of the adjacent panes. The strips k at the end of the structure are longitudinal halves of the strips g.
Patent GB-662892-A (GB)
Title: Improvements in draught excluders
IPC: E06B7/20
Filed: 1949-05-24
Abstract: 662,892. Draught excluders. SODEN, W. C. Nov. 19, 1949 [May 24, 1949], No. 13776/49. Class 20(iii) A draught excluder for doors &c. comprises a bar or flap which has a sealing strip thereon and is pivotally mounted on the door &c. and spring pressed into a raised position with a striker 12 adapted to move against the door frame when the door is closed to pivot the bar downwardly, the bar being formed in two parts 1, 2 which slidably engage in each end of a coupling sleeve or member 3 to connect said parts in alignment at adjustable distances apart, each part 1, 2 and the coupling sleeve 3 being each provided with a flexible strip 11, 7 for bearing on the floor. As shown the metal member 3 is of U- section with one limb 4 straight and the other limb 5 stepped inwardly to form a shoulder 6 which supports the bars 1, 2. The rubber sealing strip 7 is attached to the sleeve 3 by means of projections 8 engaging in perforations 9 in the sleeve. The rubber strips 11 fit in grooves in the bars 1, 2 and at the inner ends overlap the strip 7 and bear against a portion 5a of the limb 5. A striker 12 comprising a U-section metal strip with one limb having an extension 13a on each side and one or other of the limbs inturned at the lower end is slidably engaged on either end of the bar. A striker plate is let into the door frame. A spring is incorporated in each hinge 14.
Patent GB-1210462-A (GB)
Title: Apparatus for cooling the combustion gases from an incinerator
IPC: F23J15/06
Filed: 1968-03-21
Abstract: 1,210,462. Cooling combustion gases. OFAG ZURICH OFENBAU - UND FEUERUNGSTECHNIK A.G. 21 March, 1968 [23 March, 1967], No. 13814/68. Heading F4S. An air-cooled cooler for the combustion gases of an incinerator (not shown) comprises at least two tower-like chambers 1, 2 interconnected at their upper ends by connections la, 2a and a flanged expansion joint 3 to allow the gases to flow from a duct 4a connected to the incinerator flue through the chambers to a duct 6 having an extraction fan 7. The walls are of single thickness and have external outwardly-projecting ribs to increase the radiant surface area and dissipate heat to ambient atmosphere and below each cell a funnel 5, 5a is provided for collecting and discharging soot and ashes falling out of the gases. The chambers may be spaced apart except for the joint connection and radiation reflectors mounted therebetween to deflect radiant heat away from the adjacent chamber. Water may be sprayed into the gases in one or more chambers and a heat-exchanger coil may be inserted into the first chamber to be heated by the combustion gases therein, which pipe is connected to a hot-water or steam-producing plant.
Patent GB-1034823-A (GB)
Title: Improvements in manifolding books
IPC: B41L1/24
Filed: 1963-04-08
Abstract: 1,034,823. Manifolding sets; loose-leaf binders. DRESCHER PHILIPP, [trading as DRESCHER-METZLER KOMM. GES.]. April 8, 1963 [April 11, 1962], No. 13860/63. Headings B6A and B6E. A manifolding book comprises a loose-leaf binder containing a plurality of manifolding sets, each manifolding set consisting of several writing sheets and interleaved carbon sheets attached together at one end, at least one writing sheet of each set being extended beyond the other sheets in the set and the extended portion provided with apertures by means of which the manifolding set is retained in the loose-leaf binder on filing pins, the arrangement being such that on removal of a manifolding set from the book by pulling, the extended writing sheet remains in the binder. Writing sheets 1, 3 and 5 and interleaved carbon sheets 2 and 4 of each set are glued together at one end. The opposite or one side edge of the sheet 3 is extended beyond the set to form an extension. This extension is apertured whereby the set is filed on pins 6 in the binder. Clamping bars 14, 15 of felt or framed polyurethane are provided.
Patent GB-1578975-A (GB)
Title: Cooling chambers
IPC: E04H5/10
Filed: 1977-04-01
Abstract: The heat-insulated unitised unit which can be used preferably as a cooling unit is system-built from side wall elements (14) which are connected at the corner joints with the aid of clamping bolts (6) which run inside these side wall elements. The clamping-bolt connection of the side wall elements (14) arranged at an angle with respect to one another is effected by means of connecting elements (12) which have two internal screw threads (13, 20) into which in each case the clamping bolts (6) of the side wall elements (14) at an angle with respect to one another are screwed. It is advantageous that side wall elements (14) of this type can either be delivered such that they are ready to mount or, with a small amount of machining outlay at the location where they are to be mounted, coupled to one another by means of a simple clamping-bolt connection such that no cold bridges arise. <IMAGE>
Patent GB-717878-A (GB)
Title: Improvements in carrier rod drive mechanism for knitting machines
IPC: D04B11/00
Filed: 1952-06-03
Abstract: 717,878. Knitting-machines. TEXTILE MACHINE WORKS. June 3, 1952 [June 7, 1951], No. 14025/52. Class 74(2). The friction box 44 for driving the thread carriers of a straight-bar machine is positively driven at the commencement of each traverse in addition to receiving a frictional drive from the friction bar, and is gradually retarded at the end of its traverse to reduce shock on the end stops. In addition to driving the friction bar 55, the coulier mechanism also drives a bar 84 to which is coupled, by means of a clutch, a head 86. The clutch comprises spring loaded rollers 94, one of which is operative in each direction of movement of the bar 84 to securely couple the head to the bar. A projection 102 from the head 86 engages between collars 100 so as to transmit the reciprocatory motion of the bar 84 to a rod 98, and thereby positively drives the friction box 44 by a projection 118 on the box engaging between blocks 116 secured to the rod 98. At the commencement of its traverse therefore, the friction box is directly coupled to the bar 84 and is thereby accelerated without substantial frictional slippage on its rod 55. Stops 122, 123 limit the movement of the friction box, but before it strikes its stop the drive from the bar 84 is disengaged by a plunger 96 of the clutch engaging a block 128. The block 128 is slidably mounted and is coupled through levers with a cam follower 165 which is adapted to ride on a cam 152 of a bar 134, which is reciprocated at half the speed of the friction bar by the coulier mechanism. As the friction bar 55 and bar 134 approach the end of their traverse, the cam follower 165 rides down the cam 152 so that the block 128 moves in the same direction as the friction bar and head 84 and so that the impact between the plunger 96 and the block 128 is reduced. After it has released the clutch, the block gradually stops the movement of the head 86 and the friction bar is brought up to its stop 48 by a second friction box 172. Reverse movement of the friction bar and bar 84 reconnects bar 84 to head 86 to again positively drive the friction box in this direction, where it is again stopped at the end of its traverse by a similar stopping arrangement.
Patent GB-1187785-A (GB)
Title: Chromate-Coated Chromium Plated Steels and Two-Step processes for the preparation thereof by Electrolytic Treatment
Inventor: UCHIDA HIROMU
IPC: C25D11/38
Filed: 1967-03-28
Abstract: 1,187,785. Chromate-coated chromium plated steel. FUJI IRON & STEEL CO. Ltd. March 28, 1967 [March 26, 1966; Nov.11, 1966], No.14086/67. Heading C7B. Chromate-coated chromium plated steel strip is produced by first electro-plating it with chromium to a thickness of from 0À0016 to 0À1Á and thereafter subjecting the chromium-plated strip to electrolysis as a cathode in an aqueous bath containing chromic acid but free of metallic chromium electro-plating catalysts (this exclusion not covering silicofluoride ions) to form on it a chromate coating of thickness up to 0À1 mg Cr/dm<SP>2</SP> as measured by a test defined in the Specification. The steel strip treated may have a matt surface e.g. of roughness 0À8 to 3Á r.m.s. as in Specification 1,125,495, and the doubly treated strip may have a final coating of an organic film-former e.g. a resin or lacquer applied to it. The chromating bath may contain 10 to 150 g/1 CrO 3  but if silicofluoride is present, preferably Na 2  SiF6, the bath contains 10 to 100 g/1 CrO 3  and 1 to 2À5 g/1 SiF 6 . The bath may be used at 10 to 70‹ C. with a current density of 1 to 20 amps/ dm<SP>2</SP> and a treating time of 0À2 to 3 seconds. In an example cold rolled steel sheet is electrolytically degreased in dilute caustic soda solution at 90‹ C.; washed with water; acid pickled in dilute sulphuric acid; washed; electro-plated with chromium from a sulphuric acid catalyzed chromic acid bath at 50‹ C. with a current density of 40 amps/dm<SP>2</SP> for 1 second; cathodically chromated from a bath containing 50 g/ CrO 3  and 2 g/1 Na 2  SiF s  at 40‹ C. with a current density of 5 amps/dm<SP>2</SP> for 2 seconds; and finally coated with an organic lacquer of the type described in Specification 939,136. The chromium plating bath may also be as described in that Specification viz 130 to 170 g/l Cr0 3 , 0À2 to 0-4 g/l H 2 SO 4 , and 3 to 7 g/l Na 2  SiF 6  and may be used at about 50‹ C. with a current density of 20 to 80 amps/dm<SP>2</SP> for a treatment time of 5 to 1À25 seconds.
Patent GB-1167114-A (GB)
Title: Continously Variable-Focal Length Lens.
IPC: G02B15/14
Filed: 1968-03-25
Abstract: 1,167,114. Zoom lenses. CARL ZEISS-STIFTUNG. March 25, 1968 [April 3, 1967], No. 14158/68. Addition to 967, 924. Heading G2J. In a variable focal length objective as in Specification 967, 924 having two fixed positive groups A, D, enclosing two movable negative groups B, C, the elements are arranged as shown. Optical data are provided for two examples.
Patent GB-1490275-A (GB)
Title: Tool holding device
IPC: B23B27/04
Filed: 1975-04-07
Abstract: 1490275 Parting-off tools W MIHIC 7 April 1975 [8 April 1974] 14163/75 Heading B3B A tool holding device for a detachable cutter insert 13 comprises a substantially "L"-shaped clamping member 19 mounted on a holder body 10, the insert being locatable in a seat 12 in a recess at one end of the body 10, the recess housing the clamping member 19, one end 18 of which is engageable with the insert and the other end 20 of the clamping member resting on a ledge 21 in the body recess. The clamping action of the member 19 on the insert and body is provided by a screw 26 against the action of a spring 29 which urges the clamping member 19 out of engagement with the insert as the screw is released. The "L"-shaped clamping member corresponds with the reduced width nose portion of the body 10 and is symmetrical about a plane through the leg portions of the "L" so as to be reversible and suitable for use as a L.H. or R.H. parting-off tool.
Patent GB-1288173-A (GB)
IPC: F25J3/04
Filed: 1971-05-11
Abstract: 1288173 Air rectification process MESSER GRIESHEIM GmbH 11 May 1971 [12 May 1970] 14217/71 Heading F4P In a two-stage air rectification process for the production of crude oxygen e.g. 70% wherein the feed air stream 5 is cooled at heat exchangers 6, 7 by separated products and wherein a process stream is expanded at a turbine 13 to the pressure of the low pressure column 2, the cooled air stream is divided into a first portion 9 which is fed to the lower portion of the high pressure column 1 and into a second portion 15 which is condensed at 17 by heat exchange with crude liquid oxygen withdrawn at 32 from column 2, and the so-condensed air portion 15 after being sub-cooled at 4, and valveexpanded at 21b, is used to cool the head of column 1 by evaporation in a condenser 3 traversed by top gas from column 1 and the evaporated air portion is fed through a line 20 to the low pressure column 2; the head of column 1 also being cooled by crude liquid oxygen withdrawn at 27 from the base of the column and valve-expanded at 28 after which the crude oxygen provides boil-up for column 2. As shown the turbine expansion stream comprises a portion of the cooled feed air after filtration at 8; the expanded air portion being fed through a line 14 to column 2. In a modification the turbine expansion is effected on nitrogen withdrawn from the column 1 and in a further modification oxygen withdrawn from the mid-point of column 1 is turbine expanded and fed to column 2.