baber/WOPTO huggingface dataset:
Patent GB-894551-A (GB)
Title: Improvements in or relating to frequency modulated radar systems
Inventor: WRIGHT PETER MAURICE
IPC: G01S13/34
Filed: 1955-05-09
Abstract: 894,551. Radar. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Feb. 8, 1956 [May 9, 1955], No. 13297/55. Drawings to Specification. Class 40(7). In a continuous wave frequency modulated radar system, both the frequency and rate of change of frequency are cyclically varied, the rate of change increasing over a succession of cycles of frequency variation. In one embodiment the cycle repetition period is fixed, while in a second it is made equal to the target echo time. In the first embodiment, the received beat frequency is applied to a frequency changer together with the output of a swept oscillator and the frequency of the latter is changed simultaneously in correspondence with cyclical changes of the transmitted frequency. In addition, the frequency changer output supplies a feed-back signal to the swept oscillator, through a band pass filter and a discriminator to maintain a fixed frequency difference between the beat frequency and the swept oscillator output. In the second embodiment, for use with high speed moving targets, the swept oscillator is replaced by one which is locked to the Doppler shift frequency. The output from this maintains the period of the cyclic changes of the transmitted frequency equal to the echo time.
Patent GB-925009-A (GB)
Title: Improvements in or relating to rotary vacuum pumps
IPC: F04C25/02
Filed: 1960-04-14
Abstract: 925,009. Rotary pumps. M. M. DUNKEL, [trading as E. LEYBOLD'S NACHFOLGER]. April 14, 1960 [April 18, 1959], No. 13409/60. Class 110 (2). An oil-sealed, rotary vacuum pump of the outwardly-sliding radial vane type, Fig. 6, is provided with a silencer consisting of adjustable inlet means for regulating the oil/air mixture being pumped. The inlet means comprises a stem 10 which has an air inlet port 12 and is screw-threaded into a socket 8 having a variable oil inlet port 11. In a modification, Fig. 5 (not shown), the silencer communicates with the bearing journal of the rotor which has two opposed scooping bores for drawing in a mixture of oil and air and discharging same to the working space of the pump. In a further modification, the air inlet 18, Fig. 4, communicates with a socket 8 having an oil inlet port 15 controlled by a threaded nut 14, 16 acting as a needle valve. Specification 836,863 is referred to.
Patent GB-134680-A (GB)
IPC: H01B17/22
Abstract: 134,680. Wade, H., (Fabbrica Isolatori Livorno). Dec. 19, 1918. Suspending and supporting. -High-tension transmission cables are carried by two supports, such as A and L, on the insulator so as not to come into contact therewith. The supports are of magnetic material and form a shunt circuit, the self-induction of which is greater than that of the wire between the supports. It is stated that the arrangement prevents the formation of arcs between the line and insulator when waves of over excitation pass along the conductor. A packing of asbestos and minium is placed between the collar E or hood and the insulator.
Patent GB-126400-A (GB)
Title: Improvements in or relating to Means for Projecting Light.
Inventor: ROBIN JOSEPH THEODORE
IPC: B64F1/20
Filed: 1917-09-19
Abstract: 126,400. Robin, J. T. Sept. 19, 1917. Search-lights, directing.-In apparatus for projecting or distributing light, more particularly for locating hostile aircraft, in which beams of light are caused to move in a predetermined path or plane, preferably by rotating or oscillating a reflecting-device relatively to several search-lights, the apparatus can be moved as a whole to shift the position of the illuminated area or zone. The search-lights A may be mounted on vertical supports or on cross-supports or both, the supports together with a frame carrying a rotary reflecting- drum being mounted on a turntable H<2>, the axis of which passes through the middle of the drum. In a second form, searchlights are arranged round a vertically disposed rotary reflecting-drum B mounted on a platform supported by cords carrying counterbalanced weights so that the drum may be vertically adjustable, the angular position of the search-light being correspondingly altered when the platform is raised or lowered. One of the Provisional Specifications also states that the rotary reflecting-drum and the search-lights may be adapted to be shifted along or around a track.
Patent GB-542623-A (GB)
Title: Improvements relating to cartons or boxes
IPC: B65D47/28
Filed: 1940-08-27
Abstract: 542,623. Cardboard &c. boxes &c. for powder &c. WOOD, W. J. Aug. 27, 1940, No. 13502. [Class 18] A cardboard, strawboard &c. box, carton &c. for antiseptic, medicinal or similar materials in the form of powder or granules has an inner wall e provided with a plurality of perforations g which are covered or uncovered by the rectilinear sliding movement of a member f having a notch or ridge i and to which access is had through an aperture h in an outer wall d in register with the perforations.. The container is filled through a hole b covered by a plug or cover. Specification 378,660 is referred to.
Patent GB-580963-A (GB)
Title: Improvement in the manufacture of diamond tools for lapping and grinding
IPC: B24D3/34
Filed: 1943-08-19
Abstract: Relates to grinding, lapping and cutting tools having powdered diamonds embedded in bonding material and consists in using manganous oxide up to 30 per cent. as a bond, either by itself or in addition to other bonding materials, sintering taking place between 1,000 and 1,300 DEG C preferably at 1,050 DEG C.  The diamond may be mixed with a hard carbide of a metal such as chromium together with iron.  Among other examples given is the following in parts by weight, iron 100, tungsten carbide 13, diamond 15, manganous oxide 8.  Cobalt, nickel, and chromium either singly or mixed may be added to the iron or may replace some of the iron.  The tungsten carbide can be replaced either wholly or in part by carbides of chromium, tantalum, titanium, molybdenum, boron and vanadium &c.  The mixtures are first subjected to a pressure of about two tons per square centimetre, then sintered at 1,050 DEG C. in a reducing or inert atmosphere such as hydrogen, nitrogen, argon or in a vacuum.  Manganous oxide can also be used as a bond for carborundum.ALSO:Relates to grinding, lapping and cutting tools having powdered diamonds embedded in bonding material and consists in using manganous oxide up to 30 per cent. as a bond either by itself or in addition to other bonding materials, sintering taking place between 1000 and 1300 DEG C., preferably at 1050 DEG C.  The diamond may be mixed with a hard carbide of a metal such as chromium together with iron.  Among other examples given is the following in parts by weight, iron 100, tungsten carbide 13, diamond 15, manganous oxide 8.  Cobalt, nickel, and chromium either singly or mixed may be added to the iron or may replace some of the iron.  The tungsten carbide can be replaced either wholly or in part by carbides of chromium, tantalum, titanium, molybdenum, boron and vanadium &c.  The mixtures are first subjected to a pressure of about two tons per square centimetre, then sintered at 1050 DEG C. in a reducing or inert atmosphere, such as hydrogen, nitrogen argon or in a vacuum. Manganous oxide can also be used as a bond for carborundum.
Patent GB-1223742-A (GB)
Title: Improvements in or relating to phosphonic acid esters
Inventor: RANDALL DAVID IRWIN
IPC: C07F9/6571
Filed: 1968-03-20
Abstract: 1,223,742. Plant growth regulants. GAF CORP. 20 March, 1968 [22 March, 1967], No. 13567/68. Heading C1B. [Also in Divisions C2, C5 and C7] Phosphonic acid esters and half esters of the formula wherein R 1 , R 2 , R 3  and R 4  are hydrogen, alkyl, alkoxy, or halo or two of them taken together form a condensed ring, and R 5  is hydrogen, cycloalkyl, alkyl, alkenyl or alkynyl, or a halo derivative thereof, or an alkoxyalkyl group, or aryl or a halo, alkyl, or alkoxy substituted aryl, the carbon atom of the R 5  group linked to the oxygen being a primary or a secondary carbon atom, exhibit plant growth regulating properties, including the ability to control apical dominance. The phosphonic esters may be used in the form of aqueous solutions or emulsions.
Patent GB-495409-A (GB)
Title: Improvements in or relating to continuous furnaces for the annealing of metal plates
IPC: C21D9/46
Filed: 1937-05-13
Abstract: 495,409. Metal - heating furnaces. EICKWORTH, E. May 13, 1937, Nos. 13574 and 13575. Convention dates, May 14, 1936 and May 28, 1936. [Class 51 (ii)] In a furnace for heating suspended metal plates 16 comprising a preheating zone 3, heating zone 4, and cooling zones 5, 6, 7 separated by roller seals 9, the plates are suspended from slotted tubes 1, Fig. 6, movable longitudinally, by means of a push rod, in a guide 2 in the furnace roof, the tubes 1 being equal in length to each of the zones 3 ... 7 and carrying at each end sealing members 3x consisting of bar iron of the same width as the sealing rollers 9. The cooling zone 7 is extended laterally of the furnace and is fitted with a transverse conveyer having guides 10 to receive successive plate-carrying tubes 1. A pusher 11 is provided for transferring the tubes 1 with their depending plates from the cooling chamber 7 to a return chamber 8, Fig. 2. In a modification, the plates 16 are suspended from holders which, together with their sealing members 3x are moved along the guide 2 by the engagement with teeth formed thereon of overhead pinions arranged at each end of the furnace zones 3, 5, and 6.
Patent GB-276438-A (GB)
Title: Improvements in or relating to the manufacture of cement
IPC: C04B7/44
Filed: 1926-05-28
Abstract: 276,438. British Portland Cement Manufacturers, Ltd., Baxter, J. G., Bamber. M. K., and Dickinson W. J. May 28, 1926. Rotary furnaces for the manufacture of fused cement. are provided with holes 2 for the discharge of the product situated at the hottest point. The kiln may have a tapered end 3 to facilitate the discharge.
Patent GB-223518-A (GB)
Title: Improvements relating to polychrome ribbons for typewriters
IPC: B41J31/06
Filed: 1924-06-04
Abstract: 223,518. Gammell, S. J. June 4, 1924. Ink ribbons.-The longitudinal colour-stripes of a multicolour ribbon are separated bv a colourless stripe, the arrangement preventing characters from being printed in a wrong colour when one stripe is overshot. Specification 1278/05 is referred to.
Patent GB-391319-A (GB)
Title: Windows
IPC: E06B3/44
Filed: 1932-05-12
Abstract: 391,319. Window fastenings and holders. IRCO, Ltd., RUSHBY, C., and IVES, S. G., Swan Lane, Stoke, Coventry. May 12, 1932, No. 13679. [Class 44.] In a window having a hinged upper sash 3 and an unbalanced sliding lower sash 5 which can be raised to lie in front of the hinged sash, the lower sash is supported by spring catches 8 engaging ratchet racks facing the sides of the sash. Alternatively the catches may project from the face of the sash and engage racks in front of it.
Patent GB-669918-A (GB)
Title: Improvements in or relating to lamp shades
IPC: F21V1/00
Filed: 1949-05-23
Abstract: 669,918. Lampshades. PAGE, A. May 23, 1950 [May 23, 1949]. No. 13694/49. Class 75(ii). A lampshade comprises one or more flexible panels 1 having holes 6 at their tops engaging with hooks 7 provided on a wire or similar shade-supporting frame 11, the hooks assisting in retaining the panels in the desired shape. As shown, the panels 1 are each formed with a central crease 8 and adjacent side edges are overlapped and secured together by fasteners 3. The holes 6 in each panel are provided in wings 9 disposed on each side of the central crease 8 and each engages a separate hook 7, the hooks 7 being formed by the bent ends of a suitable number of wires which are twisted together to provide a central lampholder - receiving aperture. Where a single panel is bent to form the shade the hooks 7 engage holes disposed symmetrically on each side of the overlapped edges. In alternative arrangements the fasteners 3 may be augmented or replaced by tongue and slot connections 4, 5, as shown in Fig. 6, and the frame 11 may comprise a disc having hooks provided round its periphery.
Patent GB-1526606-A (GB)
Title: Production of low density polyethylene
IPC: C08F297/00
Filed: 1977-04-01
Abstract: 1526606 Three-stage ethylene/α olefin copolymerization; organometallic catalysts MITSUI TOATSU CHEMICALS Inc 1 April 1977 [6 April 1976] 13777/77 Heading C3P An ethylene polymer of non-uniform composition is prepared using a catalyst comprising (A) TiCl 4  sapported on a Mg compound, either above or after mixture or reaction with an aluminium compound and (B) an organoaluminium compound, in a three-stage process; in the first stage, ethylene is homopolymerized, in the second stage an α-olefin and ethylene are copolymerized under slurry conditions in a hydrocarbon with boiling point #40‹ C./l atm., which process is continued in the third stage using different proportions of α olefin and ethylene.
Patent GB-422781-A (GB)
Title: Device for operating hinged windows, doors and the like
IPC: E05F11/06
Filed: 1933-05-15
Abstract: 422,781. Stays; door holders. SHEPPARD, H., 83, Marsh Hill, Erdington, Birmingham, and JONES, A. E. E., Sunny Dawn, Bromwich Road, Worcester. May 15, 1933, Nos. 14073, 20418, 26300, and 28127. [Classes 44 and 65 (i)] [See also Group X] An adjustable disappearing stay for hinged or sliding windows, &c., which may form part of operating gear, comprises a pair of flexible chains formed of members adapted for interlocking or abutting engagement between the chains to form a rigid stay, the chains being anchored at one end and free to separate at the other, the separated portions being in line at right angles to the rigid portion and preferably being housed in channels in or on the window frame or window. Fig. 3 is a sectional plan view of operating mechanism for a vehicle windscreen 17, incorporating a stay comprising two chains each formed of links 23 pivoted together; the chains are pivoted at one end to a plate 19 hinged to the windscreen, and are led into channels 39 in the lower member of the windscreen frame, where they lie hidden. A disc 36 with a spiral ridge engages between parts 24 of the links 23 to feed the chains in or out when rotated by a handle 37 ; when fed out, each part 24 engages between two on the other chain to form a rigid stay, the parts being locked together by projections and recesses 30. In a modification, the links of each chain are fixed to a flexible cable instead of being pivoted to one another. The stay is held automatically in any position by the operating disc, but separate locking means, such as a clamping screw, may be provided, and the operating means may be dispensed with, being replaced by a fixed wedge separating the two chains. Stop members may be provided on the free ends of the chains to limit opening of the window. A friction clutch may be provided in the operating mechanism to avoid overstraining the mechanism or the sash in closing it tightly against its frame. In a further modification, without operating means, the chains are composed of rectangular blocks connected by pivots which allow bending only away from one another, and support one another to form the stay by abutment instead of interlocking. Specifications 4614/96 and 18090/04, [both in Class 92], are referred to.
Patent GB-725040-A (GB)
Title: Improvements in or relating to the electric heating of rotating rollers
IPC: B29B7/82
Filed: 1953-05-19
Abstract: 725,040. Heating rollers by induction. ARDICHVILI, G. May 19, 1953 [June 4, 1952], No. 14090/53. Class 39 (3). Heated rotatable rollers of magnetizable material between which strip or sheet material is passed e.g. in making sheet or laminated plastic or rubber material or for drying paper, have auxiliary heating means at one or both ends comprising open cores carrying windings 18 producing an alternating magnetic flux extending into the roller. Thus a decrease of surface temperature at the ends of a roller 11 internally heated by steam or electric resistances is compensated by placing adjacent the ends a laminated U-shaped core with ends 16 having curved surfaces 17 concentric with and adjacent the roller. Induction coils 18 are placed on the limbs of the core, which is bolted at 20 to plates 21 sliding on rods 24 to adjust the core lengthwise of the roller. The distance of the core from the roller is adjusted by a nut 38 moving a threaded rod 43 on a support 35 on the machine. The number of turns in the coils 18 may also be varied to adjust the heating.
Patent GB-150786-A (GB)
Title: Method of extracting water from any material containing it
IPC: B01D7/00
Filed: 1919-06-04
Abstract: 150,786. Merz, F. June 4, 1919. F i l m evaporators; evaporating plant and processes.-Air or other gas is caused to circulate in a closed cycle through two chambers, one containing the liquid to be concentrated and the other hygroscopic material for drying the gas. The hygroscopic material is regenerated by passing air through it. Fig. 1 shows a diagrammatic view of the apparatus. The liquid to be concentrated is fed in the form of rain to the chamber 2 and passes over plates. The drying-medium circulates between the plates and passes to a similar chamber 3 to which the hygroscopic material is supplied. The concentrated liquid is drawn off at 4. The exhausted hygroscopic material passes to a vessel 6 and is pumped up a pipe 7 and delivered to a regenerator 8 through which air currents are passed, as indicated. A reservoir 11 receives the regenerated material, which is fed as required to the vessel 3. The regenerator may be arranged at a considerable distance from the concentrating-apparatus.
Patent GB-141087-A (GB)
Abstract: 141,087. Akam, J. W. Oct. 5, 1918. Refuse-burning stoves.-A portable stove of the type adapted to burn sawdust and like fuel packed round a removable core 6, which forms an airsupply passage and combustion space, consists of two light sheet-metal cylindrical casings 1, 7 with a lid. Air is admitted by a regulator 5, and the combustion products pass away by a pipe 3. According to the Provisional Specification, the horizontal air passage and combustion space is also formed by a rod or core placed horizontally and abutting against the core 6. Reference has been directed by the Comptroller to Specification 848/92.
Patent GB-371181-A (GB)
Title: Improvements in or relating to apparatus indicating the maximum amplitude of electric potentials
IPC: G01R29/06
Filed: 1931-05-13
Abstract: 371,181. Pressure meters. GAUMONTFRANCO-FILM-AUBERT, 3, Rue Caulaincourt, Paris. May 13, 1931, No. 14170. Convention date, May 19, 1930. [Class 37.] The maximum value of a voltage is measured by the employment of one or more two-electrode tubes containing rarefied gas, such as hydrogen or neon, which become illuminated at a definite value of the potential. As shown, an alternator 1 supplies a potential to amplifying, modulating, or other apparatus 3, which potential it is desired to keep at a definite maximum value. A neon or hydrogen glow-discharge tube 7 is connected in parallel with the apparatus 3, the rheostat 2 being adjusted so that the tube 7 is not illuminated. The voltage is then below the starting voltage of the tube. The tube 7 may be connected through a transformer or potentiometer, or to the junction of two condensers connected across the apparatus, in order that a potential of a magnitude differing from the starting potential may be applied to the apparatus. When using a potentiometer, two adjustments may be made, one at which the tube just becomes illuminated, and one at which it just becomes extinguished, the voltage value being kept between these limits. Alternatively two or more tubes supplied through potentiometers, transformers, or auto-transformers of different ratios may be employed to indicate different values of the maximum voltage. When the energy of the feed circuit is insufficient to illuminate the tube, this may be connected through an amplifier having one or more valves. The input to the amplifier may be connected to the circuit directly or through a transformer, auto-transformer, potentiometer, &c., the tube 7 being connected to the output circuit of the amplifier by means of a transformer, autotransformer, reactance coil, &c.
Patent GB-199378-A (GB)
Title: Improvements in or relating to focussing devices for hand cameras
IPC: G03B13/20
Filed: 1923-05-29
Abstract: 199,378. Carmine, J. F. June 14, 1922, [Convention date]. Finders.-A reflect. ing view-finder A- is so constructed that when the camera is 'held at definite height above the ground, and a rod B, Fig. 1, slidable on the finger A is adjusted so that it coincides with the image of the foot of the object to be photographed, the position of the rod B indicates the distance away of the object and the camera can be focused accordingly. In a modification, Figs. 5 and 6, the rod B has a rack E which gears with a pinion H on a rod G rotatably attached to the front of the camera body F. A pinion J, on the rod G, gears with a fixed rack K. With this construction, the camera is automatically focused by moving the camera front F until the rod B coincides with the image of the foot of the object to be photographed. The rod G is telescopic, and has a spring joint g, so that the device may be used in a camera having a vertically movable front and to allow the camera to be used horizontally.
Patent GB-734455-A (GB)
Title: Improvements in and relating to water sprayers
Inventor: POLLAK FREDERICK
IPC: B05B3/04
Filed: 1953-05-20
Abstract: 734,455. Spray-producers. SIGMUND PUMPS, Ltd. May 17, 1954 [May 20, 1953], No. 14230/53. Class 69 (3). A sprayer of the type comprising a fixed support 1, a nozzle barrel 3 mounted thereon, and a rotary diffusing element 20 driven by reaction of the water jet from the nozzle, is characterized in that the nozzle barrel comprises a main part 21 supporting the bearings for the element 20, and a secondary part 22 including the nozzle outlet, and the part 22 is rotatable relative to the main part about an axis displaced from but parallel to the nozzle outlet axis. The element 20 comprises a vaned wheel mounted on a shaft 8, and its rotation drives, through gearing, the barrel 3 about a shaft 5. The part 22 is engaged within an eccentric bearing 23 so that by turning it relative to the part 21 the amount of water striking the vaned wheel is adjusted to vary the wheel and barrel speed. A second outlet 24 of smaller size is provided on the part 22 and also directs adjustable amounts of water on to the wheel 20, so providing a more critical adjustment of the said speeds. Specification 599,238 is referred to.
Patent GB-514705-A (GB)
Title: Process and apparatus for electric seam welding
IPC: B23K11/24
Filed: 1938-05-13
Abstract: 514,705. Control systems for electric welding. TRUNKWALTER, H. May 13, 1938, No. 14327. Convention date, May 13, 1937. [Class 38 (iv)] [Also in Group XXII] Inductive control; transformer arrangements. In an electric seam welding machine in which two pairs of lateral electrodes 3, 5 and 4, 6 are respectively connected to one pole of one of the phases f1, f2 of a two-phase current obtained from three-phase mains by a two-phase-threephase transformer, the other pole of the phases being respectively connected to roller electrodes 2, 1, arranged on opposite sides of the seam so that currents flow across the seam in such a manner as to form the quadrilateral a, b, c, d within which the greatest current density occurs. The welding current is regulated by a threephase induction regulator J, so that the rise or fall of the secondary welding voltage in both phases takes place at the same time and to the same extent, the regulator being connected to the primary of an auxiliary transformer Z, whose secondary is in circuit with the tapped primary of the welding transformer.