baber/WOPTO huggingface dataset:
Patent GB-1152018-A (GB)
Title: Optical Systems
Inventor: FRANK LEE FITZPATRICK
IPC: G03B27/52
Filed: 1967-06-05
Abstract: 1,152,018. Optical systems; electrophotographic apparatus. EASTMAN KODAK CO. June 5, 1967 [June 8, 1966], No.25889/67. Headings G2H and G2J. An optical system for forming a real image of an object comprises at least one unit comprising an objective 10 and a plane reflector 11, 12 lying on the optical axis thereof and between the objective and both the object and image planes 13, 14 thereof. The object may be moved so that the unit scans the object in a direction perpendicular to the axial mirror, Fig.2 (not shown), or a stack of units may be used to produce an image of a whole document, Figs. 3, 4 (not shown). A further plane reflector parallel to the axial mirror may be provided, and the objective may be in the form of a concave reflector, Fig. 7 (not shown), or in the form of a segment of a spherical lens. In another embodiment, Fig. 6 (not shown), each unit contains two blocks (38, 42) having coplanar reflector forming surfaces (41) and mutually facing surfaces (40) which are curved to form an air lens forming the objective. In two other embodiments, Figs. 16, 22 (not shown) four or three plane reflecting surfaces form the inside surfaces of a regular prism having rectangular sides, which prism extends on to the sides of the objective formed by four quadrants or three segments of spherical lenses having their optical axes along the intersection lines of adjacent pairs of the reflecting surfaces. Several units as described in connection with (Fig. 6) are arranged side by side to copy a document 140 Fig. 20 which is moved by a roller 141 past an object gate 117 for line by line scanning. Light from a lamp 142 falls on the document and is reflected along the units, via the air lenses, to the image gate 118 where it falls on a charged paper sheet coated on one side with photoconductive zinc oxide in resin. The exposed sheet passes through a liquid toning bath 155.
Patent GB-1459968-A (GB)
Title: Method of treating waste produced during stainless steel
IPC: C21B11/10
Filed: 1975-06-18
Abstract: 1459968 Briquetting steel-making waste NISSHIN STEEL CO Ltd and JAPAN METALS & CHEMICALS CO Ltd 18 June 1975 [4 Sept 1974] 25918/75 Heading C1A A method of treating waste produced in stainless steel making step comprises kneading a sludge cake containing 2-15% by wt. of water, which is obtained by drying a sludge cake of 30 -70% by wt. water and which has been obtained by dehydrating a slurry-like pickling sludge produced in the pickling treatment in connection with cold-rolling of the stainless steel manufacturing process, with a mixture of dust from the steel making step and with scale from a hot rolling step, in a kneader, and then adding 1-5 wt. per cent of an organic binder and 0 to 5 wt. per cent of an inorganic binder, based on solid components of the kneaded mass, and adjusting the water content to 8-20 wt. per cent, shaping the kneaded mass into a briquette, and heating. The briquette is recycled as raw material for the steel making process or the briquette may be charged together with a carbonaceous reducing agent and a flux into an electric furnace to effect pyrometallurgical reduction to extract metal components (e.g. a 3% Ni-Cr alloy which is recycled raw material) the organic binder may suitably be pulp waste liquid, molasses, tar emulsion or carboxymethylcellulose, the inorganic binder may be bentonite or pozzuolar, the carbonaceous reducing agent may be charcoal or coke, and the flux may be silica or caustic lime. The briquetting pressure is preferably 1000-4000 kg. cm.<SP>-2</SP>, and the resulting briquette has a water content of less than 5 wt. per cent and a crushing strength of about 50 kg. unit<SP>-1</SP>.
Patent GB-628226-A (GB)
Title: Improvements in or relating to power plants including an internal combustion engine of the liquid-fuel-injection compression ignition type
IPC: F02B33/00
Filed: 1947-09-24
Abstract: 628,226. Cooling charge. RICARDO, H. R., and ALCOCK, J. F. Sept. 24, 1947, No. 25934. [Classes 7 (ii) and 7 (vi)] A heat-exchanger E, Fig. 1, of the heat storage type in the air inlet pipe D of a compression ignition engine A is fed with air either directly from the atmosphere through a pipe F2, or from a supercharger G through a pipe F<SP>5</SP>. A disc valve F<SP>6</SP>, connected by a link H<SP>3</SP> to the control rod A<SP>2</SP> of a fuel injection pump A<SP>1</SP>, is moved to the position shown at normal running, connecting the heat exchanger E and the supercharger outlet F<SP>5</SP> to atmosphere through pipes F2, F<SP>4</SP> respectively. When the control rod A2 is moved to full-load, the valve F<SP>6</SP> snaps over to close the passages F<SP>2</SP> F4 and connect the pipe F<SP>5</SP> to the exchanger E. The valve-actuating lever H<SP>1</SP> is connected to the link H3 through a spring-loaded pin-and-slot connection, and a spring J<SP>1</SP> holds the valve F<SP>6</SP> in both of its positions. The 'control lever A<SP>2</SP> is actuated by a centrifugal governor B set by means of a control member C, and the exchanger E comprises a number of narrow U- shaped tubes passing through liquid in the reservoir E. In a modification, Fig. 3, the air flow through the heat exchanger K<SP>1</SP> is reversed on changing from normal to supercharged operation. A valve comprising pistons O<SP>1</SP>, O<SP>2</SP> slidable in a ported, open-ended casing L, is positioned as shown in Fig. 3 for normal operation, whereby air enters at L2, passes through the exchanger K<SP>1</SP>, and flows through ports L4, L<SP>5</SP> to the inlet pipe D, the supercharged air from the pipe F<SP>5</SP> passing to atmosphere through L<SP>1</SP>. For super: charged operation compressed air, controlled by a valve operated from the fuel pump control rod, forces a piston P to the right, whereby a plate 03 closes the opening L<SP>1</SP> and the pistons O<SP>1</SP>, O<SP>2 </SP>are positioned so that compressed air from the pipe F<SP>5</SP> flows through ports L<SP>6</SP>, L4, the pipe N<SP>1</SP>, exchanger K<SP>1</SP>, and ports L<SP>3</SP>, L<SP>5</SP> to the inlet pipe D. The heat exchanger K<SP>1</SP> consists of a matrix of cellular metal.
Patent GB-1335333-A (GB)
Title: Receiver for suppressed carrier modulated signals
IPC: H04L27/06
Filed: 1972-06-05
Abstract: 1335333 Radio receiving circuits; distortion correction INTERNATIONAL BUSINESS MACHINES CORP 5 June 1972 [29 June 1971] 26113/72 Headings H3Q H4L and H4P In a demodulating arrangement for a suppressed carrier modulated signal which includes a pilot signal at a frequency spaced apart from the spectrum of the modulated signals, comprising means for producing a carrier frequency signal from the received signals, and means for generating a reference signal at the frequency of the pilot signal, a phase detector is provided and connected to compare the reference signal with the received pilot signal to provide an output signal having a value related to the relative phases of the inputs to the phase detector and a phase modulator is connected to phase modulate the carrier frequency signal by the output signal to provide a reference carrier frequency signal, a demodulator being responsive to the received signals and the reference carrier frequency signal to demodulate the received signals. The arrangement is particularly useful for the transmission of digital data, its purpose being to eliminate phase "jitter". The described embodiment comprises a vestigial sideband system in which the modulated signals lie within the band (f c -f a ) to (f c +f o +f b ), Fig. 2, where f c  is the suppressed carrier frequency, and two pilot frequencies f 1 , f 2  are transmitted. The receiver comprises a high-frequency amplifier 11, Fig. 1, with automatic gain control, an equalizer 13 to equalize the envelope delays of the transmission channel, a filter 19 which rejects the pilot frequencies, and a synchronous demodulator 27. The output from the equalizer 13 is also supplied to a phaselocked oscillator 15, comprising a phasedetector, a narrow band low-pass filter, and a variable frequency oscillator having a nominal frequency (n - 1) f 1  which is locked to the pilot frequency f 1 . A further output from the equalizer 13 is supplied to a phase detector 111, the output from which is supplied via a low-pass filter 113 to control the frequency of a locked oscillator 115, operating at the nominal frequency nf 2 . The output from oscillator 115 drives a frequency divider 117 dividing Xn, the ouput of which is fed via a 90 degrees phase-shifter 119 to the second input of phase detector 111. The outputs from frequency-locked oscillators 15, 115 are fed to a balanced modulator, the output from which comprises the difference frequency nf 2 -(n-1)f 1 . This is fed to a phase modulator 25 in which it is phase-modulated by a "jitter" signal derived from phase detector 111 via lowpass filter 23 which passes only "jitter" frequencies. The output from phase modulator 25, which has a manual input 26 for providing fixed phase adjustment to compensate for phase delays introduced by the system, comprises the reference carrier signal used in demodulator 27. The arrangement can also be used with a similar system in which one of the pilot frequencies is above the band of signal frequencies (Fig. 3, not shown).
Patent GB-318749-A (GB)
Title: Improvements in and relating to removable water-tight partitions in tanks
IPC: F16J15/46
Filed: 1928-09-12
Abstract: 318,749. Monel-Weir, Ltd., and Ireland, J. Sept. 12, 1928. Tanks.-A removable water-tight partition for tanks which, when in place, involves no nuts or bolts submerged in the liquids and, when removed, leaves the interior of the tank free from projections, is formed with a groove along its two sides and bottom coacting with a groove in the sides and bottom of the tank, the resulting space being filled with an elastic packing member which forms a water-tight joint, screw members being provided to force the partition against the bottom of the tank and at the same time to pull the sides of the tank against the vertical edges of the partition. A tank e lined with sheet metal d has a groove n in its sides and bottom into which the lining d is pressed, coacting with a groove m in the partition a which may be made of two sheets of metal with joining pieces b, the space between the sheets being filled if desired with a non- conductor of heat, e.g. wool. The packing member c may be a tube into which water, air, or other fluid may be forced under pressure, the tube being of such cross-sectional shape that it readily fills the grooves. A swing bolt f pivoted to a bracket k on the side of the tank passes through a flange h on the top of the partition, a wing-bolt s and nut g being provided so that on tightening the bolt the partition is forced down on to the bottom of the tank and at the same time the sides of the tank are pulled inwards, pressure thus being exerted on the packing member throughout its length. Solid packing material may be employed if desired and the sides of the tank are preferably made to diverge upwards. Reference has been directed by the Comptroller to Specification 312,646.
Patent GB-694838-A (GB)
Title: Improvements relating to tuning devices more especially for use at very high frequencies
IPC: H01G5/38
Filed: 1951-11-08
Abstract: 694,838. Inductances. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Nov. 8, 1951 [Nov. 18, 1950], No. 26180/51. Class 38 (ii). [Also in Group XXXVI] A tuning device, such as a variable condenser or a variable inductance, comprises two engag. ing elements, one displaced in steps by the rotation of a first shaft, the other being smoothly displaced in accordance with the rotation of a second shaft. As shown in a variable condenser, a plate 10 has depending circular flanges into which enter two sets of semi-circular upstanding flanges 11, 12 to form two condensers to be connected in series ; the plate 10 is secured to shaft 13 which carries a cam follower 16 rolling on adjustable pins 21, so that as shaft 13 is rotated, the plate 10 moves axially in steps; this facilitates ganging with other condensers, since while the cam follower 16 rolls over a pin, no change in the position of plate 10 occurs. The plates 11, 12 are mounted on a spring 31 fixed at one end by screw 32 but moved at its other end by the rotation of eccentric cams 29, 30 on shaft 14. Thus rotation of shaft 13 produces a sequence of condenser values by step-by-step movement of the electrodes depending from plate 10, while rotation of shaft 14 produces a smooth continuous variation of condenser values by moving electrodes 11 and 12. As applied to inductances, the iron-dust core is moved by one shaft and the coil by the other.
Patent GB-362494-A (GB)
Title: Improvements in or relating to electrical sound-reproducing and recording apparatus
IPC: H04R11/08
Filed: 1930-09-02
Abstract: 362,494. Phonographic recorders and reproducers. HOLMAN, H. E., 64A, The Chase, Clapham Common, and WILLANS, P. W., 7, Ormonde Mansions, Southampton Row, both in London. Sept. 2, 1930, No. 26217. [Class 40 (iv).] An electromagnetic sound reproducer or recorder comprises an armature a, Fig. 2, and a stylus or stylus holder c mounted separately from one another upon, and each symmetrically about, a common spindle b, e.g. of electron metal. Preferably a spindle bearing d separates the armature and stylus holder, and the moment of inertia of the armature is made small by tapering its arms away from the spindle, the thickness being inversely proportional to the distance from the axis. The armature vibrates between polepieces g, Fig. 1, of a magnet f, or the armature may itself be a magnet and oscillate between coils. One spindle bearing b is preferably circular or elliptical and the other of square cross section, while both are enclosed in rubber to supply damping and restoring forces. The needle gripping screen e preferably lies in the rotational axis of the armature. In a practical embodiment, the polepieces e, Fig. 6, are at an angle with the magnet f and the whole is enclosed in a casing i. Specification 357,248 is referred to.
Patent GB-208804-A (GB)
Title: Improvements in and relating to squirrel cage electric motors
IPC: H02K17/30
Filed: 1922-09-29
Abstract: 208,804. Arut³noff, A. Sept. 29, 1922. Alternating-current induction machines.-In a squirrel-cage motor, the rotor bars are connected to subdivided rings which are short-circuited by wedge-shaped contact pieces under centrifugal action, and means may be provided between the subdivided rings and the bars to control the rotor resistance. As shown in Figs. 3 and 4, the wedge contacts 4, which are normally retracted by springs 5, are weighted at 4<a> and at a limiting speed enter between the subdivided end-rings 3. The weights are guided by an end flange 8 and the whole is enclosed in a casing 7. The springs 5 may be replaced by a spiral spring which clasps all the weights and draws them towards the centre, and in place of having plane faces the contacts 4 may have angular ribs on their faces to enter corresponding grooves in the portions 3. They may alternatively consist of a series of conically-arranged washers 15, Fig. 10, or curved or angularly bent plates on a central stem 14 such as to bed flexibly on to the ring segments 11, 12 and give a good contact by sliding slightly on their surfaces under centrifugal action. In the form shown in Figs. 7 and 8, the contact blocks 4 are slotted for the retaining-screws 6 and springs 5 by which they are retracted. The segments 3 are secured to the rotor body by screws 10 and the depth to which these screws are bedded in the body or the pressure which they exert between the segments and the body determines the resistance of the rotor.
Patent GB-330909-A (GB)
Title: The manufacture and production of lacquers filling or priming compositions, and the like
IPC: C09D101/18
Filed: 1929-03-14
Abstract: 330,909. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 14, 1929. Divided on and addition to 322,466. Adhesives.-Coating, adhesive, and like compositions comprise nitro cellulose and soluble resinous condensation products of aliphatic dibasic acids with polyhydric alcohols incompletely esterified by high molecular aliphatic acids of non-drying character, with or without the further addition of solvents, diluents, softeners, plasticizers, resins, fillers or colouring matters. The resinous condensation products may be prepared from succinic, maleic, adipic, salicoylacetic, di-glycollic or oxalic acids or mixtures thereof condensed with glycerol, glycols, sorbitol, pentaerythritol, and the like, or mixtures thereof incompletely esterified with acids such as ricinoleic, abietic, or lauric acids. The term polyhydric alcohol includes hydroxy-alkyl ethers of polyhydric alcohols. Solvents include lower glycol monoalkyl ethers and their lower fatty acid esters such as acetates or formates, ketones such as acetone, diethyl ketone, cyclohexanone, dioxane or its homologues diacetone alcohol, methyl acetate, and lower alcohols or mixtures of the above which may be diluted with ethyl, butyl, amyl or cyclohexyl acetate, liquid hydrocarbons particularly those of the benzene series, or mixtures of these. The ester diluents may also be used as solvents. Other resins such as the condensation products of cyclic ketones, urea and formaldehyde, or aromatic dibasic acids such as phthalic acid and polyhydric alcohols, natural resins such as colophony may also be added. The fillers referred to are lithopone, ground slate, graphite and kieselguhr. In examples, (1) nitrocellulose is mixed with a resinous condensation product of succinic and abietic acids with glycerol and either Lithol Fast Scarlet RN, Indanthrene Blue GSL, lamp black or iron oxide, the solvent being a mixture of diamyl phthalate butyl acetate, butanol, ethyl acetate, toluene and commercial ethyl alcohol; (2) nitrocellulose and the resin as in (1) are mixed with tricresyl and triphenyl phosphates, with or without adipic cyclo-hexyl ester, the solvent being a mixture of ethylene glycol monoethyl ether, cyclobexyl acetate, butanol acetone, toluene and commercial ethyl alcohol, and to which may be added Lithol Fast Scarlet RN. Specifications 316,914 and 320,041, [both in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-1426040-A (GB)
Title: Photocathode mask
IPC: H01J1/34
Filed: 1974-06-14
Abstract: 1426040 Semi-conductor devices RADIANT ENERGY SYSTEMS Inc 14 June 1974 26400/74 Heading H1K A photo-cathode mask for use in manufacturing semi-conductor devices comprises a U.V.-transparent substrate 20, a patterned layer of silicon 22 on a surface of the substrate 20, and a layer of photo-cathode material 24 on the silicon layer 22. The silicon layer 22 may be 250-4000 Š thick and may be partially diffused into the substrate 20 to improve adhesion, the substrate 20 may be quartz, and the photocathode layer 24 may be palladium which is vapour deposited. The silicon layer 22 is pyrolytically deposited from silane and patterned by photo-etching.
Patent GB-518144-A (GB)
Title: Improvements in or relating to water closets and other receptacles having flushing means
IPC: E03D11/06
Filed: 1938-09-12
Abstract: 518,144. Flushing sanitary fixtures. GROENIGER, W. C. Sept. 12, 1938, No. 26622. Convention date, Sept. 11, 1937. [Class 26] Comprises a construction of water closet bowl, urinal, sink, sanitary bowl, or other receptacle to which flushing water is supplied from a chamber 44 having an outlet 58 above the maximum overflow level 40 of the contents of the bowl, in order that in no circumstances may the contents of the bowl find their way into the water-supply pipe. The chamber 44 is supplied by inlet means 28 at the top or other high part thereof, and delivers by side passages 34 to flushing passages 36, 38 in the bowl. It is integral with the bowl, the front wall 46 being an extension of the wall 18 of the bowl. The front 56 of the top 52 curves downwardly and rearwardly over the top of the wall 46 to form the spout 58, which extends the full width of the chamber and is of an area of at least equal to that of the supply pipe 28, water being delivered from it backwardly against the wall 46. The side walls of the chamber 44 extend forwardly of the front 46 to form side cheeks 48. Should suction occur in the water supply pipe, air is drawn through the spout 58 so that the contents of the bowl will not flow into the pipe.
Patent GB-1034869-A (GB)
Title: Golf bag trolley
Inventor: ROBERTS SIDNEY WILKINSON
IPC: B62B5/00
Filed: 1963-07-05
Abstract: 1,034,869. Self-propelled golf bag carriers. JOHN C. CARLSON Ltd. July 6, 1964 [July 5, 1963; Nov. 8, 1963], Nos. 26653/63 and 44135/63. Heading B7H. A golf trolley comprises a bag supporting framework 10 adjustably connected by wing- nut 14 and interlocking cam-plates 13 to handle 12 with manual switch 19 and by wing-nut 22 and interlocking cam-plates 21 to frame 20 on which are mounted a pair of batteries 37 and a motor 29 on opposite sides of driven axle 27. A reversible free-wheel is provided between the axle and each wheel 28 and an additional wheel 37 (Fig. 4, not shown), may be provided on an axle carried by supports 38 extending from the parallel tubes 11 of framework 10.
Patent GB-674413-A (GB)
Title: Improvements in or relating to grooved thread-traversing drums for thread winding machines
IPC: B65H54/50
Filed: 1950-11-01
Abstract: 674.413. Winding thread. REINERS. W. Nov. 1. 1950 [Dec. 21, 1949], No. 26674/50. Classes 120(ii) and 120(iii) The threadtraversing drum 1 of a winding machine is provided with an aperture or cavity 4 leading from the surface of the drum into a part of the thread guiding groove 2, which may be undercut, as shown, so that a tool, e.g. a knife 5, may be inserted to free, as by severing, any threads 3 which have become jammed in the groove. The drum 1 is preferably closed at each end by an end-wall 7.
Patent GB-271722-A (GB)
Title: Process for toughening and hardening an artificial or natural stone of any shape
IPC: C04B41/52
Filed: 1926-10-26
Abstract: 271,722. Cohen, L. Oct. 26, 1926. Stone, hardening.-Natural or artificial stone is heated to about 250‹ C. and brought into contact with a bituminous substance heated to a lower temperature. Sulphur is either added to the bituminous substance or applied to the impregnated stone, which is then heated to vulcanize the bitumen.
Patent GB-1515791-A (GB)
Title: General purpose atomic spectrometer
IPC: G01N21/31
Filed: 1976-06-28
Abstract: 1515791 Spectrometry COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION 28 June 1976 [7 July 1975] 26825/76 Heading G2J In spectrometers using a resonance detector re-radiating the wavelength(s) sought, the resonance detector is a flame in which the reference substance(s) are vaporized or ionized.
Patent GB-836510-A (GB)
Title: Valve stem seal
Inventor: ESTEY MELVIN E
IPC: F16J15/32
Filed: 1958-08-21
Abstract: 836,510. Stuffing-box substitutes. PERFECT CIRCLE CORPORATION. Aug. 21, 1958, No. 26886/58. Class 122 (5). The stem 14 of an internal combustion engine valve is sealed by a split L-section metal collar 25 engaging the stem and embedded in the transverse wall 32 of a rubber &c. cup-shaped member 31 which resiliently fits over the end of the valve guide 15. The wall 32 extends beyond the collar 25 to contact the stem as at 33 and may be bonded to the collar by vulcanizing or by an adhesive. The collar 25, preferably of cast iron, has a notch 30, Fig. 6, in its radial flange 27 and an irregular split 26 in its cylindrical portion 25 formed by fracturing and is internally tapered towards its upper end. The bore of the member 31, in its free state, tapers towards its open end and its grip on the guide 15 is augmented by a metal spring ring 36.