baber/WOPTO huggingface dataset:
Patent GB-267582-A (GB)
Title: Improvements in cycle and similar lamp brackets
IPC: B62J6/02
Filed: 1925-11-23
Abstract: 267,582. Brecknell. W. H. Nov. 23, 1925. Vehicle and like lamps, attaching to brackets.-In means for locking cycle and like lamps on their supporting brackets for preventing theft, the portion 1 of the bracket which enters the lamp socket is formed with a tongue extension 2, having a series of wards 3 along one or both of its edges and adapted to receive a permutation lock 4 of larger external diameter than the aperture of the lamp socket. The extension 2 may be vertical.
Patent GB-952938-A (GB)
Title: Improvements in or relating to incandescent electric lamps
Inventor: BOWTELL JAMES NORMAN
IPC: H01K1/50
Filed: 1961-08-16
Abstract: 952,938. Incandescent electric lamps. GENERAL ELECTRIC CO. Ltd. Aug. 13, 1962 [Aug. 16, 1961], No. 29576/61. Heading H1F. Lamps in which the pressure within the envelope at operating temperature is at least as high as one atmosphere, comprise a filament of tungsten free from impurities other than the usual additives for modifying the crystal structure, in an envelope of light-transmitting, heat-resisting material and having a filling of iodine of at least 0.01 micromole per c.c. of envelope volume and mercury in an atomic ratio to the iodine greater than 1: 2 and sufficient to produce at operating temperature, in conjunction with the iodine vapour, an internal pressure of at least one atmosphere, the shape and dimensions of the envelope in relation to that of the filament being such that the temperature of the interior surface of the envelope lies everywhere within the range 250-1200‹ C. at the operating temperature of the filament. Iodine in excess of 0.01 micromole per c.c., e.g. sufficient to produce a vapour pressure of one atmosphere at the boiling-point of iodine may be used. The mercury present may be sufficient to produce the saturated vapour pressure of mercury at the operating temperature. A filling of inert gas up to e.g. a pressure of one atmosphere may also be present. The envelope may be of quartz, silica glass or of a transparent or translucent refractory material. In the form shown, the filament 4 of tungsten is extended by tungsten wires 5 into the pinches 3 at the ends of a tubular quartz envelope 1, the wires 5 being welded to molybdenum foil strips 6 connected to platinized molybdenum leads 7. The ends of the envelope surrounding the pinches 3 are coated externally with a thin layer of platinum 8. The filling consists of argon, iodine and mercury, the last two being supplied by introducing mercuric iodide and mercury through a side tube 9 which is then sealed off. An envelope of spherical form may be used. The Provisional Specification describes a tubular lamp with the ends of the envelope surrounding the pinches coated internally with a thin layer of platinum, and refers to the addition of a small quantity of chlorine or bromine to the filling. Specification 952,938 is referred to.
Patent GB-1359005-A (GB)
Title: Relaxation therapy apparatus
IPC: A61M21/00
Filed: 1971-06-24
Abstract: 1359005 Electro-therapeutic apparatus H LEUNER 24 June 1971 [27 Aug 1970] 29643/ 71 Heading A5R A device for use in relaxation therapy comprises sensing means such as 1 for detecting impulses from the human body connected via a control 2 and a transducer 3 to a stimulus generator such as 4 by which impulses are transmitted to the eye, ear or skin, said impulses being derived from respiratory excursion motion, heart or pulse beat, muscle action, or blood pressure. The sensing means may comprise an electrically resistive expansion band for detecting the respiratory excursion of a patient, a microphone or plethysmograph for detecting heart beat, a myograph for detecting patterns in muscle action, or a meter for detecting blood pressure. The control device transmits the signals received by the sensing device in the same frequency and/or amplitude in which they are received, and the signals are returned to the body from the stimulus generator which may produce ocoustic signals, electrical pulses, or signals from a Pulminary element 4. The intensity, and quality (i.e. wave length of light or sound waves) of the signals from the stimulus generator may be varied by the control member.
Patent GB-1534427-A (GB)
Title: Method of colour correction
IPC: H04N1/46
Filed: 1976-07-16
Abstract: 1534427 Facsimile; colour correction DAINIPPON SCREEN SEIZO KK 16 July 1976 [17 July 1975] 29655/76 Heading H4F A colour correction circuit for use in producing colour separation printing forms using printing inks comprises a variable correction part 3 and a non-variable part 5 which converts R-G-B signals to ink density representative signals such as C-M-Y (cyan-magneta-yellow). The non-variable part allots the nearest predetermined values of C-M-Y to each incoming value of R-G-B which latter signals are generated by photoelectric cells 1 and are modified according to variable requirements, such as colour preference, compression rate resulting from the range of colour in the original, and proportionality failure when half-tone printing is used, in circuit 3. As described, a colour separation circuit (Fig. 8, not shown) within circuit 3 derives plus and minus R, G, B, C, M, Y signals for addition, under control of push buttons, to the RG-B signals at the input of circuit 3.
Patent GB-229407-A (GB)
Title: Improvements in reciprocating air compressors
IPC: F04B39/10
Filed: 1923-11-26
Abstract: 229,407. Belliss & Morcom, Ltd., and Pain, A. C. Nov. 26, 1923. Check lift valves.-The sheet metal inlet valve of a reciprocating air compressor lifting off a rigid perforated seating against a rigid guard is closed manually or automatically when desired by mounting the guard on a spindle longitudinally, displaceable by a screw thread on limited angular movement of the spindle, so that the guard is either brought into close contact with the valve, or allows it to lift. All the valve guard spindles at one end of a cylinder may be operated in unison. One end of a double acting compressor may thus be put out of action. Fig. 1 shows the inlet valve guard c secured on a spindle d having at its outer end a screw thread d<1> working in a socket e. The socket is held between a stuffing- box f and a cap g, and is rotated by a lever arm h. The levers at one end are connected by linkage w, Fig. 2, and are angularly displaced in unison by the movement of a nut x traversing a screw y operated by a hand wheel z. The valve is guided by pegs k, and pressed against the seat by a spring j. The spindle passes through the delivery valve l, seat m and guard n. A washer o between the valve and guard determines the degree of lift, while an apertured plate p between the washer and the guard, in conjunction with a clearance recess on the guard face, cushions the valve opening movement. Valve springs are located in pockets q. Guide pegs r, s are provided for the delivery valve parts and the inlet valve guard. The hand wheel and screw may be replaced by automatic means comprising a double acting cylinder with piston operated by air pressure or by oil from the forced lubrication system. The cylinder has a slide valve controlled by a relay consisting of an air or oil pressure cylinder with loaded piston connected to the discharge pipe of the compressor. Fig. 7 shows such an oil relay device in which a piston 3 is connected by its rod to a cross-head which replaces the nut x, and is actuated by the pressure of oil from the oil pressure system in connection with the forced lubrication. An oil inlet 7 and outlet 8 are provided and are controlled by a slide valve 4 loaded by a weighted lever 5 and subject to compressed air entering by a pipe 6.
Patent GB-936542-A (GB)
Title: Improvements relating to rupture-resistant alloys
Inventor: COOK REGINALD MASSEY
IPC: C22F1/00
Filed: 1961-08-18
Abstract: 936,542. Altering molecular structure; casting processes. INTERNATIONAL NICKEL CO. (MOND) Ltd. Aug. 9, 1962 [Aug. 18, 1961], No. 29924/61. Classes 83 (1) and 83 (4). A process of forming a wrought product from a rupture-resistant alloy comprises casting an ingot so that it has a directionally-oriented columnar grain structure and hot working, e.g. extruding, forging or rolling the ingot to render its grain structure substantially equiaxed. In one example, an ingot 6.0 inches high and 2.5 inches in diameter having a composition 0.18% C; 15% Cr; 15% Co; 3.5% Mo; 4% Al; 0.05%Zr; 0.20% B ; balance Ni was cast in moulds comprising sillimanite tubes standing on a water-cooled copper base. The tubes were pre-heated to 1150‹ C. and the alloy superheated to 1540‹ C. before pouring. The structure of the ingot was columnar to within 1.25 inches of the feeder head, this portion being removed before the ingot was hot-extruded into 0.75 inches diameter bars having a homogeneous and equiaxed structure. In a second example, an ingot 7.0 inches in diameter and 10.0 inches high having the composition above was cast in a mould comprising a tubular mass of exothermic material 2.0 inches thick standing on a water-cooled copper base and surrounded by an insulated jacket of particulate refractory material. After pouring repeated applications of exothermic material were made to the top of the metal until it had become solidified half-way up its depth. The ingot was hot extruded as before to 1.25 inches in diameter. Test ingots cast in refractory or chilled moulds and having equiaxed structures were hot extruded into 1.25 inches and 0.75 inches diameter bars. Test-pieces from all the bars were heat treated by heating for 1-5 hours at 1200‹ C., air cooled, heated for 16 hours at 1050‹ C. and air cooled prior to being subjected to stress-rupture tests. Tables showing the results of these tests are given. Rods, bars, tubes, air-foil turbine blade sections or rotor discs may be made from suitable ingots. Age hardenable nickel chromium alloys containing titanium and/or aluminium, cobalt and iron and one or more hardening elements such as molybdenum tungsten, niobium or tantalum with or without boron or zirconium may be used.
Patent GB-1172106-A (GB)
Title: Improvements in or relating to Pressure Control in Vacuum Apparatus
Inventor: PRIESTLAND COLIN RICHARD DOUGL
IPC: G05D16/18
Filed: 1967-06-29
Abstract: 1,172,106. Coating by sputtering. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. May 31, 1968 [June 29, 1967], No. 30011/67. Heading C7F. In sputtering apparatus, in which gas is continuously fed and evacuated from a chamber, the inlet and outlet are so arranged in a region that the presence of the incoming gas does not affect the pressure in the chamber other than in this region. In a sputtering apparatus, Fig. 1, gas is introduced at 3 and evacuated through a duct 6, the region being defined by baffles 5. Substrates 7, 8 are mounted on a rotatable holder. Sputtering deposition taking place on substrate, whilst the pressure in the rest of the chamber is low enough to allow vapour deposition on substrate 8. In a modification Figs. 3 and 4 (not shown) a secondary pumping outlet is provided. In other modifications R. F. frequency and a magnetic field may be used and a grid bias may be placed in the evacuating duct to prevent ionized gas from reaching the pump.
Patent GB-1190301-A (GB)
Title: A method and a tool for cutting the ends of gear teeth
IPC: B23F19/10
Filed: 1968-06-24
Abstract: 1,190,301. Chamfering gear teeth; milling cutters. CARL HURTH MASCHINENUND ZAHNRADFABRIK. 24 June, 1968 [22 June, 1967], No. 30036/68. Heading B3K. A milling tool for rounding or chamfering the ends of gear teeth has a pair of concentric radially spaced cutting elements 34, 44, the radial spacing of which is equal to the pitch of the gear teeth to be machined so that the flank ends of four teeth may be machined simultaneously. The outer cutting element 44 is axially adjustable on the cylindrical body 33 of the tool and is driven through key 37 and toothed coupling member 36. In the method of operation the tool is rotated and reciprocated according to arrows 63, 62, Fig. 6, and the workpiece indexed periodically (arrows 64) through two pitches of the teeth or multiples thereof. More than two concentric cutting elements may be provided.
Patent GB-291290-A (GB)
Title: Improvements in electric switches
IPC: H01H13/68
Filed: 1927-11-09
Abstract: 291,290. Hill, A., and Anderson, E. Nov. 9, 1927. Retractive switches; contacts; boxes. -A reversing switch for controlling the motors in small electric auto-cars for use in amusement parks, fairs &c. consists of a rocking contact-member operated by the depression of one of a pair of spring-retracted foot-pedals extending through the floor-boards, the switch-box being readily detachable without disturbing the operating pedals. As shown in Figs. 1 and the pedals v, w extend through the floorboards d and their forked lower ends engage a rocker bar r secured on the externally-projecting end of the switch shaft h which extends through the casing a. The. shaft h is surrounded by an insulating sleeve o on which is secured two pairs of bridging contacts p, p<1> adapted to co-operate with fixed contacts g which are so arranged and interconnected that when the shaft is rocked in one or other directions the current is reversed in the motor field circuit. Each pedal is returned after operation by a spring y, the springs being of equal strength so that the arm is normally held in the mid-position. This action may be assisted by a spring-pressed plunger engaging a recess in the switch shaft when in its central position. The switch box a is secured by lugs b to a block c beneath the floorooards d and can be readily detached without disturbing the pedal operating gear, the bar r being drawn out of the forked ends of the pedals w, v during the removal of the switch-box.
Patent GB-634826-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/011
Filed: 1947-11-14
Abstract: 634,826. Electrostatic precipitation. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 14, 1947, No. 30288. Convention date, Nov. 26, 1946. [Class 39 (i)] [Also in Group XXVIII] An electrostatic precipitator comprises upstream of the electrodes, rows of spaced verrically extending dust pockets opening at their lower ends into a dust-receiving chamber, the pockets of each succeeding row being staggered with respect to the pockets of each preceeding row so that the gas is deflected in a plurality of sinuous paths and is distributed uniformly into the precipitator. U-shaped members 30 having converging inlets 31, Fig. 2, are located in advance of the ionizing electrodes 11, 15 and precipitation plates 17, 18 of the precipitator, to trap the larger foreign particles in the gas entering the casing 16 from the inlet 35.
Patent GB-203286-A (GB)
Title: Improvements in differentials
IPC: G05G1/08
Filed: 1922-11-06
Abstract: 203,286. Andrade, C. Sept. 2, 1922, [Convention date]. Differential gearing of the type comprising two friction ratchet clutches is modified so that locking rollers D, D' co-operating with two driven elements C, C' engage with a common member B located between them and in the annular space between the driving-member A, A<1> and the driven elements C, C<1>. As shown in Fig. 14, the rollers D, D<1> are adapted to have limited relative displacements. The rollers are in wedge-shaped recesses A<3>, Fig. 2, in the driving-member and are adapted to grip in both directions of rotation. The common member B, Fig. 6, is formed at B<2> with flanges to engage necks D<2> on the rollers, and at B<3> with recesses to hold springs which press with friction against the elements C, C<1>. The locking rollers may be provided with rings of teeth D<10>, Fig. 25, co-operating with teeth on the driving member.
Patent GB-1009379-A (GB)
Title: Electrophotographic materials and methods for producing electrostatic images
IPC: G03G5/087
Filed: 1962-08-08
Abstract: 1,009,379. Electrophotographic materials. ISHIHARA SANGYO KAISHA Ltd. Aug. 8, 1962 [Aug. 11, 1961; June 28, 1962], No. 30454/62. Heading H1K. Electrophotographic materials have photosensitive layers containing rutile (TiO 2 ) dispersed in an organic insulating binder. The dispersion, with or without a solvent, is coated on to a support of paper, baryta-coated paper, resin-coated paper, plastics, glass, a metal foil/ paper laminate, or a metal foil such as aluminium. The dried material may be used in this form or the photo-sensitive coating may be stripped from the support and used independently. Suitable binders are waxes, and natural and synthetic resins, for example resins of the following classes: phenolic, alkyd, polyester, polyamide, phenol modified alkyd, styrenated alkyd, vinyl, melamine, urea, silicone, aldehyde, ketone, balsam, cellulose, and colophony-based types; and carnauba wax, beeswax, shellac, paraffins, and casein. Rutile for use in materials of the invention may be made by calcination of hydrated titania obtained by hydrolysis of titanium tetrachloride or titanyl sulphate, or by thermal decomposition of titanium tetrachloride in the presence of oxygen-containing gases. Some impurities greatly inhibit the photosensitivity of rutile but neutral impurities, such as the anatase form of TiO 2 , may be used as diluents for the rutile. The electrophotographic materials of the invention fall into two categories: in the first type the sensitive layer acts as a normal photo-conductive insulator; in the second type the potential across the sensitive layer continues to rise slowly after completion of the charging stage, the potential rising more rapidly in the presence of illumination. Materials of the first type use binders such as modified alkyd resins and unsaturated polyester resins, and contain rutile whose sensitivity may be altered by doping with silver and/or copper. (The deposits are added as nitrates to precipitated TiO 2  which is then calcined.) The layer may contain sensitizers such as Rose Bengal or Rhodamine B, and can be supported on paper or metal foil paper laminates. Materials of the second type use binders such as alkyd resins, alcohol-soluble phenolic resins, and polyamide resins, and an insulating layer of one of these resins is preferably provided between the photo-sensitive layer and the support which consists of plastics material or baryta paper. Specific examples are given for both types of material. If similar developers are used for the two types, one of the materials will give a positive image and the other a negative image. The electrostatic latent image in materials of the first type consists of unexposed regions of high potential and exposed regions of lower or zero potential whereas the latent image of materials of the second type has its unexposed regions substantially at the potential obtained at the completion of the charging process and its exposed regions at some higher potential.
Patent GB-309370-A (GB)
Title: Improvements in apparatus for cutting or trimming card, paper, cloth and other materials or substances
IPC: B26D1/09
Filed: 1928-10-22
Abstract: 309,370. Merrett, J. Oct. 22, 1928, Pivoted-blade machines.-In an apparatus for cutting sheets into three or more pieces, a pivoted desk-board A carries the card. Spring-urged knives Fare pivoted to a base-board B and work through slots in the board A. A hand-depressed spring-urged frame M pivoted to the board A carries cutter bars, which co-operate with the knives F. Edge gauges are fitted.
Patent GB-299371-A (GB)
Title: Method and means for displaying fabrics and the like
IPC: A47F7/18
Filed: 1928-10-22
Abstract: 299,371. Altermann, G. Oct. 22, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 25, 1928]. Articles to be displayed, rotating and oscillating supports for; optical-projection apparatus, applications of.-Displayed fabrics, garments. &c. have imparted to them a rotary, folding, rolling or waving motion by means embodying toothed segments or cams operated intermittently so as to impart relative motion at predetermined intervals of time tc supporting members. The goods may be intermittently or continuously illuminated by sources located behind, in front, or at the sides, and advertisements or patterns may be optically projected thereon. Fig. 1 shows one construction of suitable actuating apparatus, consisting of two discs 4, 7 intermittently and consecutively rotated in the same direction by mutilated gear wheels 9, 10, the cloth being draped over the device so as to be in frictional contact with each disc. In Fig. 3, is shown another form comprising pairs of arms 24, 25 which rise and fall .under the control of two dissimilar cams 19, 20, the fabric being supported by the ends of the arms and by a stationary bar 22.
Patent GB-262446-A (GB)
Title: Improved process for making printing type
IPC: B41B11/00
Filed: 1926-12-02
Abstract: 262,446. Siemens & Halske Akt.-Ges. Dec. 4, 1925, [Convention date]. Making type.-A process for making type, more especially printing-blocks, type-wheels, and type-drums for calculating and like machines, whereby resistance to wear is increased, consists in forming the type by a process in which the finest details of the matrix are filled up, such as jet-casting, electrotyping, or the spraying process described in Specification 147,901, [Class 82 (ii), Washing granular &c.], and subsequently consolidating or condensing the. metal by rolling or forcing it into the matrix. Specification 3002/07 also is referred to.
Patent GB-379909-A (GB)
Title: Optical projector for advertising and other matter
IPC: G03B21/00
Filed: 1931-11-04
Abstract: 379,909. Optical-projection apparatus. TODD, C. E., 12, Grangeville Gardens, Finaghy, BROWN, A. W., 37, Textile Buildings, both in Belfast, andNEUSTRADT, E., 228, Kurfurstendamm, Berlin. Nov. 4, 1931, No. 30578. [Class 97 (i).] In apparatus comprising two projectors g, c, having projection axes intersecting on the screen a, one projector g contains a circular diapositive rotatable about a central masking area, and intermittently changed images are projected by the other projector c on to the dark area of the screen enclosed by the rotating image. As shown, the diapositive is rotated through a pulley o, and a strip e of diapositives is intermittently fed through the projector c by a maltese cross mechanism s. The rotating diapositive may comprise two discs h<1>, h<11>, Fig. 2, and both may be rotatable, in opposite directions, by toothed rims l, m and a bevel wheel n on the spindle of the pulley o, or one may be fixed and the other rotatable.
Patent GB-1413367-A (GB)
Title: Photoelectric transmitter and receiver arrangements
IPC: H04B10/114
Filed: 1973-06-27
Abstract: 1413367 Light barrier &c SIEMENS AG 27 June 1973 [29 June 1972] 30641/73 Heading G1A In a light barrier, employing a Piezo-ceramic fixed-frequency filter 4 in an oscillator circuit 6, 7, 8 which drives an electro-luminescent diode 12 via an amplifier 10, the transmitted light is received by a photo-diode 22 connected across a choke 24 supplying several resonant amplifier stages coupled by further ceramic fixed-frequency filters 28, 32 and the amplified output provides an indication of any changes or interruptions in the intensity of the received radiation. The amplifier stages may be connected to a rectifier 36 and unidirectional voltage amplifier 38 which operates a relay 42 connected to an alarm or, alternatively the amplifier 38 may operate an electronic counter or be connected to the input of a process computer