baber/WOPTO huggingface dataset:
Patent GB-777224-A (GB)
Title: Travelling wave electron discharge devices
IPC: C08G81/02
Filed: 1953-09-18
Abstract: 777,224. Travelling wave tubes. STANDARD TELEPHONES & CABLES, Ltd. Sept. 18, 1953 [Sept. 29, 1952], No. 25817/53. Addition to 776,923. Class 39(1). [Also in Group XL(b)] The line-above-a-plane transition section coupling the high-impedance helix 8, Fig. 1, with the low-impedance coaxial line 12 according to the parent Specification, is provided with a conical or tapered section 20 where it is connected to the helix. As shown, the line is a quarter-wave post 16 cylindrical except for the conical tip 20. Where it is desired to apply a separate potential to the helix the line may comprise a central conductor 21 insulated at 22 from the outer line portion 23, the whole being finished off conically. Screening members may be placed around the line to reduce radiation. When the line is a flat strip 34, Fig. 6, it is finished off with a triangular portion 36 and is separated from the plane plate 3d by a dielectric strip 35. A more compact structure may be obtained by bending the line into a right angle as shown in Figs. 8, 9. Here the inner conductor 43 of the input line 42, 43 is connected to the bent strip transition member at the bend, the tapered strip 48 being connected to the helix 56 while the straight limb 49 is earthed capacitatively by flange 50, dielectric 51 and body member 47. The ouput line 41 is similarly coupled and both lines leave the device at the same end. In a further modification with the transition section composite for separate helix potential, the part 57 connected to the coaxial line 60 is capacity-coupled through insulation 59 to part 58, which is connected at one end to the helix and at the other to capacity earth 58a, 65, 64. Dimensions of various parts of the high-frequency circuit are specified. Specification 706,958 is referred to.
Patent GB-333065-A (GB)
Title: Improvements in lenses
IPC: G02B13/00
Filed: 1929-08-24
Abstract: 333,065. Warmisham, A., and Kapella, Ltd. Aug. 24, 1929. Lenses.- Objectives for photographic or projection purposes of the type comprising four separated members. the two outer members being simple and convergent, and the two inner members being compound and dispersive and presenting their outer surfaces of weaker curvatures toward the median air space, are constructed with each divergent member having a convergent cemented surface of deeper curvature than either of its outer surfaces. The front divergent member is externally of substantially concavo-plane form, and the rear divergent member of meniscus form. Numerical data of one construction having an aperture of F 1.5 are given in the Specification and Specification 258,092 is referred to.
Patent GB-1210560-A (GB)
Title: Organosilicon compounds
Inventor: PEARCE CHRISTOPHER ARTHUR
IPC: C07F7/08
Filed: 1968-05-29
Abstract: 1,210,560. Organosilicon compounds. MIDLAND SILICONES Ltd. 22 May, 1969 [29 May, 1968], No. 25833/68. Heading C3S. Novel organosilicon compounds of the formula wherein X represents chlorine or bromine and each R<SP>1</SP> represents a monovalent hydrocarbon radical, e.g. methyl, ethyl, propyl, butyl, nonyl, octadecyl, vinyl, allyl, cyclohexenyl, phenyl, diphenyl and naphthyl, are prepared by reacting a halogenated phenol of the formula with a compound R1 2 HSiY and/or (R<SP>1</SP> 2 SiH) 2 - NR<SP>111</SP>, wherein Y represents chlorine or a radical -NR<SP>11</SP> 2 , each R<SP>11</SP> represents hydrogen, alkyl or aryl and R<SP>111</SP> represents hydrogen or alkyl. An example describes the preparation of para - chloro - O - dimethylsilyl phenol from para-chlorophenol and tetramethyl disilazane.
Patent GB-765812-A (GB)
Title: Improvements in rotary distributor valves for piston engines and piston-type compressors and pumps
IPC: F04B39/08
Filed: 1954-09-08
Abstract: 765,812. Valves and valve-gear. TACCONI, G. Sept. 8, 1954, No. 26002/54. Class 7 (6). [Also in Group XXVIII] A conical rotary valve 74 is driven through a resilient connection 87 from a hollow shaft 82 to which the valve is connected by a screwthread coupling 84 which causes a limited movement of the valve away from its seat on increase of friction, the shaft 82 being driven from the drive shaft 77 by balls 92 engaging in V-shaped recesses in flanges 80, 81 which are urged together by a spring 89 and which produce a large movement of the valve away from its seat upon an abnormal increase in friction on the valve. The shaft 82 comprises two parts with inter-engaging toothed ends and the shaft 77 is driven by a gear wheel 79 through a one-way clutch 78, The resilient connection 87 comprises a spiral spring connected at one end to the shaft 82 and at the other end to a pin 86 fixed to the valve 74 and co-operating with a sector-shaped notch 85 in a flange on the shaft 82 which permits limited relative rotation between the valve 74 and shaft 82.
Patent GB-1464416-A (GB)
Title: Metering apparatus for molten metal
IPC: B22D39/06
Filed: 1974-06-12
Abstract: 1464416 Discharging molten metal G O FORCESI 12 June 1974 [12 June 1973] 26151/74 Heading F1R An apparatus for dispensing molten metal comprises a furnace 24 with an outlet 23, a bubbling gas supply conduit 24 with a level detector 17 in its supply line and a top pressure gas supply regulated by the level detector. The level detector 17 is responsive to the pressure in the supply line which is equal to the molten metal level above the conduit 24 outlet. The detector 17 controls a valve 5 to a reservoir 20 which is topped up to the required pressure dependent on the molten metal level. In operation a timer is used to close electrovalves 7, 8, 13, 13A and open an electrovalve 10 for a pre-set time to discharge the reservoir into the furnace to dispense the metal. When the valve 10 is closed the valve 8 is opened to connect the furnace to atmosphere, and the valve 7 is opened to replenish the reservoir.
Patent GB-264898-A (GB)
Title: Improvements in or connected with lamps of the suspended type
IPC: F21V21/38
Filed: 1925-10-20
Abstract: 264,898. Evered & Co., Ltd., and Barnes, F. V. Oct. 20, 1925. Winch-actuated lever load-handling appliances. -An arm 27 carrying a lamp 11, is secured to a member 25 suspended by means of a cable 16 from an arm 17<a> on a post 17, the member 25 being adapted to be automatically engaged with or disengaged from a rigid support 26 on the arm 17<a> when moved to or from the normal position. The member 25 carries a pulley 15, round which passes the cable 16, and is provided with outwardly projecting pins 25<a> adapted to co-operate with inwardly projecting cam-like members 26<a>, 26<b>, 26<c> formed on the inner side of two plates forming the support 26, the pins resting normally in the bottom of the members 26<a> so as to support the lamp independently of the cable 16. To lower the lamp, a winch is operated to raise the pins 25<a> along the inner face of the longer arm of the members 26<a> until they contact with the members 26<b> when the lamp swings inwardly and the motion of the winch is reversed, the pins sliding along the outer face of the members 26<a>. On raising the lamp, the pins 25<a> are directed along the outer face of the shorter arms of the members 26<a> into contact with the members 26<c> when the winch is reversed to lower the pins into the normal position. The arm 27 carries a pulley 15b, around which is passed the cable 16. Steps are provided on the plates 17<b> to prevent the pulley 15<b> rising above the position in which it is shown so that it acts as a pivot during the initial operation for raising or lowering the lamp.
Patent GB-955981-A (GB)
Title: Water-insoluble disazo-dyestuffs and process for their manufacture
IPC: C09B35/28
Filed: 1960-07-27
Abstract: Water-insoluble dyes of formula: <FORM:0955981/C3/1> where X is H, Hlg, Alk or OAlk, Y is a benzene or diphenyl residue and R is a residue of 2-naphthol-3-carboxylic acid amide or arylamide, which are free from COOH or SO3- groups, are used to colour nitrocellulose lacquers and polyvinyl chloride.  Red and yellow shades are obtained. In Example (1) the dye 1:4-di-(31-amino-41-chlorobenzoyl-amino)-benzene \sQ 1-(21 : 31-hydroxynaphthoylamino) - 2 - methoxy - benzene is used to colour the above materials in red shades.ALSO:The invention comprises dyes of formula <FORM:0955981/C3/1> where X is H, Hlg, Alk or OAlk, Y is a benzene or diphenyl residue and R is a residue of 2-naphthol-3-carboxylic acid amide or arylamide, the dyes being free from COOH or SO3H groups. The dyes are made in conventional fashion, R being the coupling component residue.  Amongst indicated arylamides are the phenylamide which may be substituted by Hlg, Alk or OAlk groups, and naphthylamides. The dyes are used for colouring lacquers and thermoplastic masses and in pigment printing. In examples which illustrate the preparation of the dyes and their use in colouring P.V.C., and nitro cellulose lacquer, representative of Y are phenylene and 3,31-dimethoxy-, -dichloro- and dimethyl-diphenylene and X is shown as Cl, H, MeO and Me.  Red and yellow shades are obtained.
Patent GB-1531904-A (GB)
Title: Endoscope
IPC: A61B1/07
Filed: 1976-06-23
Abstract: 1531904 Endoscopes RICHARD WOLF GmbH 23 June 1976 [25 June 1975] 26200/76 Heading G2J To avoid damage due to differential expansion, in an endoscope comprising an inner tube 1 (containing optical components) within an outer tube 2, the proximal end of the outer tube is secured directly to a terminal tube 4 while the inner tube is sealed thereto via a contractile coupling 11. The coupling 11 may be a bellows, a telescopic tube arrangement or a flexible tubular member. As shown a fibre optic bundle 3 may be contained between tubes 1,2. An eye-piece 10 is screwed to a tube 8 being a cover glass 9 which, in turn, is screwed to the terminal flange of tube 4.
Patent GB-188483-A (GB)
Title: Radio telephone transmitter
IPC: H03C1/22
Filed: 1921-10-04
Abstract: 188,483. Walker, H. C. Oct. 4, 1921. Thermionic modulating systems.-A modulating valve F is connected in the grid circuit of a power or generating valve H in parallel with the usual grid leak resistance D, the grid circuit of the modulating valve F being subjected to the signal potential variations, such as those arising from a microphone circuit K, J. The aerial inductance B is connected in the plate circuit of the power valve H and is coupled to the grid inductance coil C. Other modulating valves in series or in parallel with the valve F may be used.
Patent GB-1263859-A (GB)
Title: Ceramic clad flame spray powder
IPC: C23C4/06
Filed: 1970-06-01
Abstract: 1,263,859. Coating. METCO Inc. 1 June, 1970 [1 July, 1969], No. 26256/70. Heading B2E. [Also in Division C7] A flame-spray powder comprises finely divided core particles of a metal or alloy bonded to and coated with particles of a ceramic that remains in the solid phase at least 100‹F above the fusing temperature of the metal or alloy, the ceramic having an average particle size less than 25% of the average particle size of the metal core, and leaving exposed from 5 to 75% of the surface area of the metal core as determined by the polarized light-microscopic grid method (described in the Specification). The core particles, of size -100 mesh to 3 microns, may include W, Ti, Ta, Nb, Zr, Ni, Co, Fe, Al, Cu, Sn; V, Mo, Cr, and alloys thereof, and may be Mo, Ti-6 A1-4V, Ni-16 Cr-8 Fe, Ni-33 Cr, Co-25.5 Cr-10.5 Ni-7.5 W-0.5C, stainless steel, Al-12 Si, Cu-9.5 Al-1Fe, or Sn-7.5 Sb-3.5 Cu-0.25 Pb. The ceramic may be WC, Cr 3 C 2 , TiC, Al 2 O 3 , ZrO 2 , TiO 2 , chromium oxide, Mg ZrO 4 , a borosilicate glass, diatomaceous earth, talcum powder, BN, ZrB 2 , CaF 2 , or a Cr silicide. A binder such as starch, sugar, cellulose, polyamide, rubber, urethane, phenol, polyester, epoxide or acetate is preferably used to attach the ceramic to the metal, the coated particles being made by mixing the binder metal and ceramic and a solvent, and then removing the solvent. In an alternative embodiment, metal is coated with both Al and a ceramic. The powder may be flame-sprayed on to steel or Ti alloy.
Patent GB-730605-A (GB)
Title: Apparatus for determining the weight of a quantity of liquid that has passed througha pipe
IPC: G01N9/10
Filed: 1952-10-20
Abstract: 730,605. Measuring liquid flow. ESSO AKT.-GES., HAMMANN, G., and CONTZEN, H. H. L., [trading as HYDRO APPARATEBAUANSTALT]. Oct. 20, 1952 [Oct. 20, 1951], No. 26316/52. Class 69 (1). [Also in Group XIX] Apparatus for determining the weight of a quantity of liquid that has passed through a pipe under pressure comprises a volumeter arranged to determine the volume rate of flow of the liquid and to transmit the rate to integrating indicating means through a frictionwheel transmission mechanism the transmission ratio of which is determined by the position of its friction wheel or wheels, a densimeter determining the density of the light being arranged continuously to vary said position in accordance with the density. As shown, the liquid to be measured flows past a diaphragm 4 in a pipe 1. The pressure difference caused by the diaphragm causes liquid to flow along a forked pipe 5 into a cylindrical chamber 12 of a densimeter 3 and thence by a pipe 6 back to pipe 1. Alternatively, liquid could enter by the single pipe and leave by the forked pipe. The whole of the liquid in pipe 1 subsequently flows through a volumeter 2. The densimeter 3 includes a cylindrical body 13 suspended by a spring 14 in chamber 12, so that its position depends on the density of the liquid. Since liquid enters at both ends, its flow does not affect the position of body 13. The transmission mechanism comprises discs 17, 18 on shafts 8, 10 which are parallel but slightly offset and mounted on brackets on a plate 16, one of which is urged towards the other by a spring 19, and friction rollers 20 geared together by discs 21, or alternatively in contact, to rotate in opposite directions, and in contact with discs 17, 18. A lever 15, passing through a liquid-tight joint in the wall of chamber 12, is connected to body 13 and to a link 9 connected to the frame carrying the friction rollers, by a thill so as to tilt the frame about the points of contact of the rollers 20 with discs 17, 18. In this way the transmission ratio of the system is varied with the density of the liquid. The volumeter 2 is connected to shaft 8 of disc 17, which drives, through the transmission system, a pointer of an indicator 11. The pointer after any given time thus gives an indication of the products of the volume and density (i.e. the weight) of the liquid which has passed through the pipe during the time in question.
Patent GB-1206087-A (GB)
Title: Improvements relating to thermal switches in glow plug ignition systems
IPC: F02P19/00
Filed: 1969-05-23
Abstract: 1,206,087. Thermal switches. ROBERT BOSCH G.m.b.H. 23 May, 1969 [28 May, 1968], No. 26374/69. Heading H1N. [Also in Division F1] A thermal delay relay having bimetals 12, 18, Fig. 1, heated by a coil 11 carrying the current in a glow-plug ignition system (see Division Fl), operates to close contacts 16, 17 and light an indicator lamp (21), Fig. 3 (not shown), after a time lag approximating to the required preheating period of the glow plugs. One bimetal 12 extends through the heating coil 11 and carries a contact 16 co-operating with contact 17 on a shorter bimetal 18 remote from the coil 11. The arrangement of the bimetals is such that the contacts 16, 17 undergo a rubbing action which removes the pitting and oxidation layers.
Patent GB-398645-A (GB)
Title: Improvements in or relating to clutch mechanisms
IPC: F16D43/10
Filed: 1932-09-22
Abstract: 398,645. Friction clutches. NAKASHIAN, L. L., 34, Marble Street, Worcester, Massachusetts, U.S.A. Sept. 22, 1932, No. 26378. Convention date, July 11. [Class 80 (ii).] In centrifugal friction clutches, particularly for obtaining unloaded starting of electromotors, wedgeshaped weights 15 slide radially in slots in a driving flange 13 against adjustable springs 16 and engage correspondingly tapered registering slots 22 in presserplates 20, which act to thrust friction discs 21 against a flange 5 of the driven shaft and the end wall 11 of a drum 10 secured to the flange 5. The flange 13 extends from a sleeve 7 on the driving-shaft 1, supported in bearings 6, 12 of the driven member.
Patent GB-191158-A (GB)
Title: Improvements in safety clips for fountain pens
IPC: B43K25/02
Filed: 1921-10-06
Abstract: 191,158. Ker, R. A. Oct. 3, 1931. Reservoir pens; pencil and like point-protectors. -The body or cap c of a pen is furnished with a pocket clip b the ring portion a of which passes round a part of the body or cap of reduced diameter, the outside of the ring being preferably flush with the outside surface of the pen. In the construction shown, the seating for the ring is formed by providing a screwed and detachable end e on the body or cap.
Patent GB-717700-A (GB)
Title: Improvements in or relating to firebacks
IPC: F24B1/195
Filed: 1951-11-12
Abstract: 717,700. Fireplaces. PADDOCK, S., and HILL, A. Nov. 11, 1952, [Nov. 12, 1951.] No. 26436/51. Class 126. A fireback for an open fireplace with a draught passage behind a front wall of the fireback having an entrance near the base of the fire and extending up to the top of the fireback, comprises one or more components with inter-engaging means to maintain the components in their respective positions. In one embodiment, Figs. 3 and 4, the fireback is formed in two sections 10, 11, the front section 11 having integral side cheeks 17 and grooves into which fit tongues 12 on the rear section 10. The flue 16 is formed by a channel in the rear section 10 closed by the back surface of the front section 11, which has an aperture 20 near its base. The upper part 21 of the front section is inclined forwardly. In another form, Fig. 6, the fireback comprises three sections 22, 23, 24 with integral side cheeks. The lower section 22 is solid and has a shoulder 27 against which fits the second section 23. Sections 23, 24 are of hollow rectangular section, and the part 23 has a shoulder 32 engaging a rebate in the top section 26 and an aperture 30 at its base. In a modification, Fig. 11, the front section 11 is cut away to accommodate a boiler 35. The upper part of the front section may be a separate part 36 dovetailing into recesses formed in the part' 11. A damper sliding in grooves in a metal frame fitted to the top of the fireback controls the draught through the flue.
Patent GB-826712-A (GB)
Title: Improvements in or relating to precipitation hardenable austenitic alloys
IPC: C22C38/54
Filed: 1957-08-22
Abstract: A precipitation hardenable austentic alloy having high rupture strength at elevated temperatures has the following composition in percentages by weight. .Ni.20 to 35 .Cr.7 to 23 .Mn.0.3 to 2.5 .Si.0.1 to 1.5 .Mo and/or W.1.25 to 3.5 in total .Ti.1.6 to 3.5 .B.0.005 to 0.5 .V.0 to 0.5 .Al.0 to 0.4 .C.less than 0.1 .Co.0 to 20 .Fe.the balance The alloy may be prepared by melting Fe, Ni, and Mo, in an induction furnace, protected by an inert slag and deoxidized by the addition of a Ca-Si alloy.  Fe-Cr and Fe-Ti or pure Cr and Ti, Mn, V and Al are added and the melt is stirred electromagnetically. Fe-B is added just before casting.  After forging, parts made from the alloy may be solution heat treated at 980 DEG C. to 1200 DEG C. and aged for at least 10 hours at 620 DEG C. to 780 DEG C.
Patent GB-809281-A (GB)
Title: Improvements in and relating to seals
Inventor: BRADFORD BERNARD WILLIAM
IPC: F16J15/20
Filed: 1945-10-10
Abstract: Graphite is contacted with uranium hexafluoride vapour to form a product which is admixed with polytetrafluorethylene to produce a moulding composition from which seals resistant to UF6 vapour under conditions of rubbing friction may be made.  Granular graphite is degassed by heating in an evacuated vessel at 100 DEG  C. and cooled. UF6 vapour is introduced and left in contact for 24 hours, and the product is ground.  Massive or lumpy graphite requires several days' exposure to UF6 vapour.ALSO:A mouldable composition comprises an admixture of polytetrafluorethylene and the product of treating graphitic carbon with uranium hexafluoride vapour (see Group III). The ground graphite product and an equal weight of ground polytetrafluorethylene are intimately mixed, first by hand, and then by mill.  The mixture is moulded at 2 1/2 tons per square inch, and the strength of the mouldings is improved by heating at 380-420 DEG C., preferably 400 DEG  C. for 3-4 hours; this heating may be effected in the mould after pressing.  Seals resistant to UF6 vapour under conditions of rubbing friction may be made from the composition.
Patent GB-224543-A (GB)
Title: Improvements in high frequency electric signalling systems
IPC: H04B3/56
Filed: 1924-11-06
Abstract: 224,543. British Thomson-Houston Co., Ltd., (Assignees of Baker, W. R. G.). Nov. 6, 1923, [Convention date]. Wired wireless systems. - The protective earthed wire 9 usually provided above overhead power-transmission lines 1 - - 6 is utilized for transmitting or receiving high-frequency signalling-currents to or from the power lines, by insulating a section of the protective wire and earthing that section through a transformer 14 which has its secondary coiL connected to a signal transmittar or receiver 13. The location of the coupling- wire 9 above the power lines reduces its capacity to earth, and limits free radiation.
Patent GB-1056852-A (GB)
Title: Improvements in or relating to aircraft
Inventor: BALMER ROBIN JOHN
IPC: F02K1/00
Filed: 1962-07-10
Abstract: 1,056,852. Aircraft controls. HAWKER AIRCRAFT Ltd. July 8, 1963 [July 10, 1962]. No. 26581/62. Heading B7G. In an aircraft control system, the control movement transmission associated with one pilot's control member includes an adjustable coupling device with a condition in which movement of the control member by the pilot has little or no effect on the part controlled, the coupling device being progressively adjustable from that condition to increase progressively the amount of movement of the part controlled that is produced by a given movement of the pilot's control member, and operative connections are provided whereby performance by the pilot of another control function automatically brings about such progressive adjustment of the coupling device. As shown, an aircraft has a jet propulsion engine 13 with nozzles 10 which are rotatable to give lift or propulsive thrust, and two jet lift engines 11, 12. The pilot's throttle control lever 15 for the lift engines is connected to the throttles 31 through a coupling member 18 pivoted at 19 and having slot 21 in which runs the end of a lever 17 connected to a lift engine throttle 31. As the nozzles 10 of the main engine 13 are rotated, the lever 17 is moved by a rack and pinion 25 and rods 23, 24 so that its end 20 moves along the slot 21. In operation, the throttle lever 15 is pre-set to some desired position and the thrust of the lift engines 11, 12, 13 varied automatically as the nozzles 10 rotate. The lift engines are spaced apart fore and aft and their thrust may be differentially varied by actuator 27 operated by the control stick 28 to give pitch control. This differential thrust is measured by a thrust comparator 26.