baber/WOPTO huggingface dataset:
Patent GB-489188-A (GB)
Title: Improvements in or relating to photoelectric layers, surfaces and the like
IPC: H01L21/10
Filed: 1937-02-22
Abstract: 489,188. Cathode-ray tubes. ZEISS IKON AKT.-GES. Feb. 22, 1937, No. 5338. Convention date, Feb. 22, 1936. [Class 39 (i)] The mosaic screen in a television tube is formed by depositing selenium particles on a backing and making the particles light sensitive with the usual coatings ; the backing may be of insulating material with a silver coating, on which the selenium is deposited, the silver between the particles being removed. In a modification the selenium particles are deposited on a silver surface, the metal between the particles removed and then the selenium removed leaving isolated elements of silver, which are oxidized and coated with caesium. The selenium may be deposited by vaporization, from a suspension in a liquid or from ointment, paste, or powdery mixture.
Patent GB-844655-A (GB)
Title: Couplings
Inventor: CROWDER GEORGE EDWARD
IPC: A45F3/04
Filed: 1958-02-19
Abstract: 844,655. Strap fastenings. MORTON & CROWDER Ltd. Jan. 7, 1959 [Feb. 19, 1958], No. 5361/58. Class 44 A coupling comprises in combination, a hollow body 4 adapted for connection to one of the parts to be coupled, the body 4 having adjacent one end an internal annular surface 8 of conical or other tapering form, a hollow plug 9 slidable within the body, a spring 10 urging the plug towards the conical surface, a plurality of members 12 mounted for radial movement in the plug, a sleeve 14 slidable on the outer periphery of the body, means 13 extending through a slot in the body whereby the plug 9 can be moved in opposition to the spring by movement of the sleeve, and a peg 18 adapted to be connected to the other part to be coupled, the peg having at one end a head 20 which can be inserted into the body and plug, the arrangement be such that when thus inserted, the interaction of the members with the surface 8 under the action of the spring will cause the members to engage behind the head of the peg to retain the latter within the body. As shown, the one end of the body is provided with a D-shaped ring which is retained by a flanged end cap 7. The coupling may be used to connect a lead to a dog collar or to interconnect parts of a rucksack.
Patent GB-868679-A (GB)
Title: Improved apparatus for drying webs of paper or the like
IPC: D06C7/00
Filed: 1958-02-19
Abstract: 868,679. Gas burners. TIMSON, E. A. Feb. 11, 1959 [Feb. 19, 1958], No. 5408/58. Class 75(1). [Also in Group XIII] In a paper drying apparatus naked flame jets are directed against travelling webs of wet paper. Each jet emanates from a hollow cylindrical burner 13 in the outer surface 13a of the mainly closed end 13b of which is milled a diametral concave recess 14. In the bottom of the recess, centrally between its ends, is an outlet aperture 15 communicating with the interior 16 of the burner the aperture 15 being produced by forming in the inner surface 13c of the end 13b a diametral channel extending at right angles to the recess 14.
Patent GB-298031-A (GB)
Title: Improvements in or relating to the treatment of mouldable material
IPC: B29C33/00
Filed: 1928-02-21
Abstract: 298,031. Barnes, E. Feb. 21, 1928. Casting and moulding celluloid, tortoiseshell, pipes and tubes. - Materials, such as tortoiseshell, celluloid, aluminium or alloys of same, that can be moulded under pressure at temperatures which will not damage the metallic pressing tools, are reinforced or perforated by grooving them, inserting wires or rods into the grooves with the edges of the grooves overlapping them, and then embedding the inserted wires by completely closing the edges of the groove together and bringing the material into contact with the whole surface of the wire along the whole length of the groove by a moulding operation with applied pressure. To produce fine perforations, the wire is withdrawn after moulding, and one of smaller diameter inserted and the material repressed and so on, thus producing perforations of any desired cross section by a multi-stage, process, in which the fineness of the perforations increases stage by stage. The process is stated to be specially suitable for reinforcing light articles such as spectacle frames or parts of ophthalmic and similar instruments. Fig. 7 illustrates a bar 14 with wires fitted in two oppositely-disposed grooves, inserted in a press for initial treatment with inclined dies 23, 20 which bend the outer edges of the grooves inwards over the wire to clamp it in position. Temporary packing pieces, pins, or wedges, or guides on the pressing tools may be used to retain the wires prior to the bending process. Subsequently the packing pieces are removed and the moulding and shaping operation completed in another machine. Specification 205,769, [Class 97 (i), Optical systems &c. J, is referred to.
Patent GB-1502273-A (GB)
Title: Phase demodulation systems
IPC: G07B15/06
Filed: 1975-02-06
Abstract: 1502273 Data transmission phase demodulation NATIONAL RESEARCH DEVELOPMENT CORP 6 Feb 1975 [6 Feb 1974] 05494/74 Heading H4P A phase demodulation apparatus suitable for use in vehicle identification systems in road pricing arrangements comprises a plurality of phase demodulators 15-17 each capable of responding to the same modulated input signal and a reference signal with a predetermined relative phase for providing a correctly demodulated signal, a reference source 12, 18-21 for applying reference signals with differing phases to 15-17 and a selection circuit 23 for supplying an apparatus output signal same as one or more of the demodulator output signals selected on the basis of information content. The modulation may be in the form of a digital code signal including a start of message code and a fourteen digit decimal number using the two out of five code. The selection circuit 23 may be based on the reception of a correct "start of message" signal and on the following digits conforming to the two out of five requirement, a majority decision circuit (Fig. 2, not shown) or an arrangement which checks for errors and rejects those signals where parity does not occur.
Patent GB-480052-A (GB)
Title: Improvements in or relating to magnetron electron discharge device arrangements for use on very short waves
IPC: H01J25/52
Filed: 1937-02-24
Abstract: 480,052. Magnetrons; valve generating and modulating circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Feb. 24, 1937, No. 5595. Conven- ‹ tion date, Feb. 24, 1936. [Classes 39 (i) and 40 (v)] In a high-frequency magnetron discharge tube arrangement, the discharge tube is provided with electrodes located in pairs arranged symmetrically with respect to the cathode, two of the electrodes constituting a control system for the discharge and four of the electrodes being arranged outwardly of the control system and constituting a power system for taking up oscillations, the inner and outer systems being respectively connected to oscillating circuits of different natural frequencies, that of the outer system being preferably twice that of the inner system. The inner system J<1>, J<2> is connected to a tuned circuit fed with alternating potential from an external source or self-excited, while the outer system comprises four symmetrically arranged electrodes A<1> ... A<4>, connected as shown by short leads B within the valve envelope to a tuned output circuit. The electrons emitted from the cathode K may be collected by a pair of outer electrodes such as A<1>, A<3>, or a trap electrode N may be provided for this purpose. The electrode N is at the highest positive potential of the system and may be cooled by circulating liquid or gas. The electrodes J<1>, J<2> may be in the form of semi-cylindrical grids surrounding the cathode and the outer electrodes may be similarly perforated. The device may be used for modulating or demodulating purposes. Thus, the electrode N may be in the form of an even number of individual electrodes, adjacent one another and connected in two groups to which modulation voltages are applied in opposite phase. Alternatively, modulating potentials may be applied to the inner or outer electrode systems or to auxiliary electrodes provided between or outside the oscillating systems.
Patent GB-657833-A (GB)
Title: Mould drawing device for moulding machines
IPC: B22C17/02
Filed: 1949-03-01
Abstract: 657,833. Moulding-machines. FISCHER AKT.-GES., G. March - 1, 1949, No. 5606. Convention date, Dec. 9, 1948. [Class 83 (i)] In a drawing-device for a moulding-machine comprising a piston rigidly secured -to the machine frame and a cylinder vertically slidable on the piston, a regulating pin rigidly secured to the end of the piston projects into the bore of a vertically displaceable regulating sleeve carried by the cylinder. A mould 3 is adapted to be lifted from the pattern 4 by lifting pins 10 connected through members 9 and a frame 8 with a drawing cylinder 7 which is vertically slidable on a piston 11 secured to the main frame 1 of the machine. Screwed into the top of the piston is a regulating pin 12 which normally projects into a bore 33 in a sleeve 14 adjustably secured in the cylinder. Above the piston, the cylinder is filled with oil and is raised to draw the mould by means of compressed air supplied to the top of the cylinder through a valve 18 and pipe 19. This air forces oil through the annular space between the bore 33 and pin 12 so that the mould is first lifted slowly and then at an increased rate as the sleeve 14 is lifted clear of the pin 12. The initial position of the sleeve relatively to the pin is adjustable by means of a crankpin 21 projecting into a groove 22 in the sleeve and operated by a hand-wheel 16 which can be held in one of a number of positions by means of a pin 24 which engages within a selected one of a number of holes 23 formed in an intermediate member 20 within which the sleeve 14 is slidably mounted. After the drawing operation the valve 18 is connected to exhaust so that the cylinder returns to its original position, the oil passing through additional bores 30 in the sleeve 14, said bores having non-return ball valves 31 at their upper ends.
Patent GB-210642-A (GB)
Title: Improvements relating to motor-cycles and like vehicles
IPC: B62J35/00
Filed: 1923-02-27
Abstract: 210,642. Nicholson, T. A. E. Feb. 27, 1923. Frame components, applying and combining.- Two side tanks a on a motor cycle are combined with side shields n which are extended up to the steering head q and back to the rear wheel axle r so as to form the frame of the cycle. Foot rests p are formed with the side shields n.
Patent GB-488303-A (GB)
Title: Improvements in or relating to abrasive-coated discs
IPC: C08L61/10
Filed: 1937-02-25
Abstract: 488,303. Grinding - discs. TENNANT, W. J. (Carborundum Co.) Feb. 25, 1937, No. 5718. [Class 60] In an abrasive disc of the type such as is described in Specification. 329,323, [Class 60], comprising a backing disc of a tough ductile material which is relatively stiff and rigid in its own plane but which is laterally flexible, a cloth disc adhesively secured to the backing disc and a coating of abrasive grains attached to the outer surface of the cloth disc, the grains are attached by a binding material consisting of or containing a synthetic resin, such, for example, as a heat hardened phenolic condensation product resin. The backing disc may be of hydrolysed cellulose or may be a heat hardened phenolic condensation product resin reinforced by an embedded disc of cloth. The cloth disc to which the grains are attached may be filled with a brittle material. Specification 440,569 also is referred to. Reference has been directed by the Comptroller to Specification 356,188.
Patent GB-368051-A (GB)
Title: Improvements relating to the conversion of olefines into alcohols
IPC: C07C29/04
Filed: 1931-02-25
Abstract: Alcohols are obtained by causing a mixture of an olefine and steam to contact in the vapour phase with a body of material such as broken pumice serving as a carrier or surface distender for sulphuric acid of strength ranging from 60 to 85 per cent at a temperature not exceeding about 200 DEG  C. and at atmospheric or higher pressure. Gas mixtures containing olefines may be employed instead of pure olefines.  The proportion of steam in the reaction mixture should preferably be sufficient both to take part in the reaction and to maintain the concentration of the acid constant. Examples are given, in which ethyl alcohol is obtained by passing ethylene and steam over pumice containing 60 per cent by weight of sulphuric acid at temperatures of 150, 145, and 170 DEG  C. and pressures of 1, 3, and 15 atmospheres respectively, the residual ethylene being recirculated.  When treating higher homologues of ethylene such as propylene and butylene, the reaction temperature and concentration of the acid is progressively lower, the greater molecular weight of the olefine.
Patent GB-608528-A (GB)
Title: Improvements in or relating to cam operated electric switches
IPC: H01H50/66
Filed: 1946-02-26
Abstract: 608,528. Automatic exchange switches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., WOODLAND, C. R., and HOUGHTON, E. I. Feb. 26, 1946, No. 5914. [Class 40 (iv)] [Also in Group XXXVII] The movable spring contact of a twodirectional selector switch is actuated by a pivoted member 16 provided with cam surfaces 22, 23 engaged by the V-shaped end 24 of the spring 11, the slopes of the surfaces 22, 23 being such that the pressure of the springs 10, 11 causes a'rapid movement of the member 16 when the end 24 of the spring passes over the junction of the surfaces 22, 23. The member 16 is rotated about its pivot 17 by an armature extension 19 having prongs 20, 21 engaging the lower end of the member 16. Alternatively the end of the member 16 may be forked to engage the plain end of the member 19. Lost motion is introduced between the member 16 and the prongs 20, 21 as shown in Fig. 2, so that the spring 11 is actuated only as the member 19 approaches the end of its stroke. In the position shown in Fig. 2, the contact of prong 21 with the member 16 first lifts the spring end 24 to increase the pressure between the springs 11 and 10 which then cause a rapid movement of member 16 as the spring end 24 passes the junction of the cam surfaces and allows the spring 11 to make contact with spring 12. In the construction shown in Fig. 4, the prongs 26, 27 of the armature extension engage the member 16 at different levels so that the springs are operated for a smaller movement of the member 16 in one direction and the gap between the prong 26 and member 16 may be larger than in the construction shown in Fig. 2. Fig. 5 shows a modification for use with a uniselector or electromagnetic relay of the telephone type. The member 31 is pivoted at 32 and provided with cam surfaces 35<SP>1</SP>, 36 and is actuated by the armature extension 33 which oscillates in a vertical plane between arms 34, 35 projecting from the member 31. Specification 433,877 is referred to.
Patent GB-591222-A (GB)
Title: Improvements in heat-resisting alloys
IPC: C22C38/48
Filed: 1944-03-31
Abstract: Ferrous alloys, particularly suitable for use at high temperatures, have the following composition:- .C.0.20- 0.60 per cent .Cr.12.00-22.00 per cent .Nl.10.00-30.00 per cent .Mo.2.00- 6.00 per cent .W.2.00- 6.00 per cent .Nb.2.00- 6.00 per cent Fe, together with the usual impurities, the remainder  The specified proportion of niobium may include a small proportion of tantalum.  Within the above ranges of proportions, preferred proportions for the elements are as follows: carbon 0.30-0.60 per cent., molybdenum, tungsten and niobium in substantially equal amounts, each from 3.00-5.00 per cent., chromium up to 20.00 per cent., nickel up to 25 per cent.  An alloy is referred to of the following composition:- .C.0.45 per cent. approximately .Cr.14.00 per cent. approximately .Nl.20.00 per cent. approximately W, Mo, Nb each 4.00 per cent. approximately  Fe, and the usual impurities in the usual amounts, the remainder.
Patent GB-858602-A (GB)
Title: Improvements in or relating to portable electric welding repair kits and apparatus
Inventor: BROAD CHARLES SAMUEL
IPC: B23K9/28
Filed: 1958-02-25
Abstract: 858,602. Welding by pressure. GALLAY Ltd. Feb. 16, 1959 [Feb. 25, 1958], No. 6111/58. Class 83 (4). [Also in Group XXXV] A portable electric welding kit consists of a current supply assembly, housed in a container and carrying terminals, and an electrode or switch and a work clamp or clip connectable by cables to the terminals. The assembly, which receives input current from the mains, comprises a transformer 26 and timer 25, a terminal 29 connectable to the clamp, terminals 30, 31, 32 connectable to a pointed non-consumable rod electrode and providing outputs of 2, 3 and 4 volts respectively and a socket 52 connectable to a foot-operated switch which actuates the timer to provide a resistance spot weld. The duration of the weld is pre-set by a knob 70 and knobs 73, 66 provide a fine adjustment of the welding voltage and match the transformer to the mains voltage respectively. In a modification, the electrode 85 which is of copper is attached to a pistol type holder 92 incorporating a switch 95 connectable by a cable 96 to the socket 52. The electrode instead of being a solid rod may be a hollow copper member 99 having an aperture 100 at its tip 102 and a removable plug 103 by means of which it may be filled with water. A space 15 in the container is provided for the cables and tools and repair patches are carried in the lid 18 of the container 11.
Patent GB-431449-A (GB)
Title: Method of and apparatus for melting glass electrically
IPC: H05B3/03
Filed: 1935-02-26
Abstract: 431,449. Electrode furnaces. PATENT-TREUHAND-GES. FUR ELEKTRISCHE GLUHLAMPEN, 11, Ehrenbergstrasse, Berlin. Feb. 26, 1935, Nos. 6180 and 6181. Convention dates, March 2, 1934 and Jan. 25, 1935. [Class 39 (iii)] The electrodes of a glass-melting furnace are cooled more at their lower parts than at their upper parts in order to increase the resistance through the melt between the lower parts of two electrodes and thus direct the current mainly between the upper parts. Cooling medium is circulated through tubes 2, 3, 4, Figs.1, 2, in the lower part of an electrode 1, the lower tube being arranged preferably nearer the face 6 of the electrode than the upper tubes. The upper thin-walled portion 7 of the electrode is formed with cooling ribs 8. The face of an electrode may be inclined, and an electrode may be formed of superposed sections to prevent fractures when heated. The box-shape electrode 14, Fig. 9, is cooled by a block 19 carrying cooling tubes 2, the block being pressed tightly against an intermediate member 18 in the electrode by a plate 20 held at the bottom by a wedge-shaped crossbar 22 and secured at the top by bolts 21.
Patent GB-1486994-A (GB)
Title: Contraceptive means including an intra-uterine device
IPC: A61F6/14
Filed: 1975-02-14
Abstract: 1486994 Intra-uterine contraceptive device and inserter MULTILAN SA 14 Feb 1975 [14 Feb 1974] 6324/75 Heading A5R An I.U.D. comprises two cantilevered resilient arms 2 extending oppositely from one end of a stem 1, the device when inserted having the stem located in a tube 3 so that at the cervix the arms collapse against the outer surface of the tube and regain their relaxed position within the uterus. The arms are curved towards the stem to form part of an ellipse, the longer axis of which coincides with the stem. The stem may carry a spiral of copper wire 5 or a hormone preparation to aid in preventing pregnancy. Protruberances 4 on the arms retain the device in position within the uterus and a wire 6 aids withdrawal.
Patent GB-988137-A (GB)
Title: Improvements in or relating to article dispensing devices
Inventor: O'NEAL WILBERT OSBORNE
IPC: G07F11/24
Filed: 1964-02-14
Abstract: 988,137. Coin-freed vending apparatus. L. W. MENZIMER. Feb. 14, 1964, No. 6336/64. Heading G4V. A device for dispensing one at a time bottles 21 stored in two staggered stacks, such as described in Specification 921,856, comprises a camoperated shelf 31 which is disposed below alternately-actuated cam-operated abutment rods 25, 26, the arrangement being such that rotation of the cams effects first the movement of the shelf to discharge a bottle thereon, then the return of the shelf to a bottle-holding position and finally the release of a bottle from one of the stacks on to the shelf. Such an arrangement prevents the removal of more than one bottle upon the insertion of a single coin. As shown in Fig. 3, the rods 25, 26 are movable about pivots 23 by a cam 29 and the shelf is movable about one of the pivots 23 by a cam 35,the cam-shaft being driven through gearing 40, 41 by a motor 38 which is controlled by the insertion of a coin and a switch 47 operated by abutments 46 on a timing wheel 45. Three magazines are arranged side-by-side for dispensing bottles in turn, the cam-shafts 44, which are driven from the same motor, being disposed 60 degrees out of phase. Coins inserted rotate the cam-shafts through 60 degrees each time and dispense a bottle from one particular magazine on every third operation. Fig. 5 shows the follower 28 on the abutment 26 riding in the recess 30 of the cam 29 thereby pivoting the abutment about its pivot 33 to allow a bottle to fall on to the shelf 31. Fig. 7 shows the abutment 26 back into its obstructing position, the abutment 25 waiting to be moved and the shelf 31 in its bottle-discharging position, the follower 34 riding in the recess 36 of the cam 35. The side walls of the magazines are adjustable to accommodate various sizes of bottles and if desired, the cams 29 and 35 may be combined. In a single magazine device, the cam-shaft is arranged to rotate one half of a revolution on each insertion of a coin. More than one motor may be employed, each being associated with a group of magazines. Specification 988,138 also is referred to.
Patent GB-258830-A (GB)
IPC: H04N1/036
Filed: 1926-03-08
Abstract: 258,830. Standard Telephones & Cables, Ltd., (Assignees of Bancroft, E. P.). Sept. 24, 1925, [Convention date]. Copying -telegraphs.-The photographic film in the receiver of a copying telegraph is illuminated by the image of a small aperture in a screen, which in turn is illuminated by the out-of-focus image of the slit of a light valve of the string galvanometer type. In the transmitter, the light from a source 5 passes to a light sensitive cell 4 through an aperture in a fixed screen 6 and an element of the picture which is wrapped as a transparency round the transparent moving drum 1. The output of the cell 4 is used to modulate a carrier wave and at the receiving station the demodulated signals are applied to the string 13 of a string galvanometer, which consequently moves in a plane perpendicular to the plane of the drawing. The string is of such width that when at rest it cuts off from the aperture 15 the light derived from the source 16. The illumination passing through the apertures, and varied in strength by the movement of the string, is focused by a lens system 17 at a point F short of or beyond the aperture 19 in the screen 18. This aperture is focused bv a lens 21 on the receiving film carried by a drum 23, and in this way a uniformly illuminated spot is projected on to the film. The sizes of the picture elements are determined by the apertures in the screens 6, 18, at the sending and receiving stations respectively.