baber/WOPTO huggingface dataset:
Patent GB-629821-A (GB)
Title: Improvements in or relating to push-button electric switches
IPC: H01H13/02
Filed: 1947-12-12
Abstract: 629,821. Press-button retractive switches. ELECTRO - HYDRALTLICS, Ltd., and HUNTER, A. Dec. 12, 1947, No. 32882. [Class 38(v)] The movable contact structure of a retractive push-button switch comprises a metallic portion 8 normally bridging spring contacts 5, and a non - pitting portion 9, e.g.. of carbon or silver graphite, which is first moved between and then beyond contacts 5 to break the circuit when the push-butt o n i s depressed against the action of a spring 17. The portions 8, 9 are cylindrical with flat contact faces proper, and the shaft 12 carrying them is of square section and moves non-rotatably in a square hole in a disc 13 having a tag 14 engaging a hole 15 in the metal casing 1. The push-button moves through a rubber packing 21, and a gasket 23 is arranged between the casing and a cover 22, so as to render the switch dirt and water-proof. The casing may be earthed at 25. The portion 9 is on the other side of portion 8 for a push-to-make switch.
Patent GB-522426-A (GB)
Title: Improvements in or relating to hair clipping or shaving devices
IPC: B26B19/04
Filed: 1938-11-11
Abstract: 522,426. Dry shavers. ROLLS RAZOR, Ltd., and LAW, E. H. Nov. 11, 1938, No. 32892. [Class 131] A cutter head for a dry shaver comprises an outer cutter 11 constituted by an arch-shaped piece 10 having transverse slits 14 forming blades 15, and also side walls 13 secured to a base 18 having upstanding walls 21 forming recesses for the reception of cut hair. The inner cutter is formed from a rectangular bar 22 of the section shown having a depending rib 23 projecting between the walls 19 and a groove 25 receiving a longitudinal rib on the under side of the outer cutter. On each side of the groove 25 are a number of slits 26 forming blades 27 which bear against the flat underside of the cutter 11. The cutter 22 is reciprocated by a lever 28 oscillated by electrical or mechanical driving mechanism and is forced against the fixed cutter by spring- pressed rods 31.
Patent GB-466426-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: C03B23/217
Filed: 1935-11-27
Abstract: 466,426. Glass manufacture. BAIRD TELEVISION, Ltd., and JOHNSON, A. H. Nov. 27, 1935, No. 32899. [Class 56] [Also in Group XL] In the manufacture of cathode-ray tubes or other discharge tubes, having an electrode assembly for the production of an electron beam and a relatively large bulb containing a screen or target, the bulb b is provided separately from the neck d and has a short stem of larger diameter than the main diameter of the neck which is belled out at the end sealed to the bulb. Preferably the parts are supplied separately, and the electrode assembly fitted to the neck before the parts are sealed together.
Patent GB-634269-A (GB)
Title: Improvements in or relating to hand-operated cigarette making device
IPC: A24C5/44
Filed: 1947-12-15
Abstract: 634,269. Cigarette - making appliances. AHOKAS, J. Dec. 15, 1947, No. 32973. Convention date, Sept. 19, 1938. [Class 130] [Also in Group XVII] A hand-operated cigarette-making device in which an endless band 17 embraces the tobacco has a roll 5 of cigarette paper mounted therein. The shaft 6 of the roll is mounted in side extensions of slots 3 in the side walls of the device and a pivoted trough-shaped member 7 is pressed against the roll by a spring 10 and has a serrated edge 9 on which a length of paper may be torn after it has been moistened thereon. After the paper has been inserted on the band 17, preferably of rubberized cloth, the pivots of the roller 14 are moved in slots 15 so that the tobacco and paper are surrounded during rolling. The cigarette paper may have adhesive strips. The Specification as open to inspection under Sect. 91 comprises also a roll which is loosely accommodated in a compartment of the device. This subject-matter does not appear in the Specification as accepted.
Patent GB-361569-A (GB)
Title: Control for preliminary and final pressing tools on machines for manufacturing nails and the like
IPC: B21K1/44
Filed: 1930-11-03
Abstract: 361,569. Forging nails &c. KEYSSNER, K., 10, Bahnhofsweg, Hersbruck, near N³remberg, Germany. Nov. 3, 1930, No. 32985. [Class 83 (iv).] A machine for heading nails &c. in two operations has dies carried in a slidable member which is connected to leaf springs forming one arm of a camactuated lever so that the dies are brought successively into the operative position. Heading dies n, o are carried in a slide m vertically movable on a horizontally slidable member s. The slide m is connected by a guide member p and a pivot l to springs h forming with an arm d a lever oscillatable about a shaft c. Rollers el, e<2> bear on cams f<1>, f<2> rotated from the main drive of the machine, and bring each die n, o into position for the successive strokes, stops q, r, limiting the motion of the slide m.
Patent GB-1007185-A (GB)
Title: Improvements in or relating to board cartons
IPC: B65D85/32
Filed: 1962-08-28
Abstract: 1,007,185. Cartons for eggs and the like. DIAMOND NATIONAL CORPORATION Aug. 28, 1962 [Sept. 13, 1961], No. 32986/62. Heading B8P. A carton primarily intended for eggs is made from a single blank which comprises a panel 16 forming transverse partitions, side panels 18 and 28, bottom panels 20 and 26, panels 22, 24 forming an inverted V-shaped longitudinal partition and a cover panel 30. (Fig. 1 shows a blank 10 separable along a line 38 to form two similar cartons.) The blank is folded about interrupted score lines 56, 56<SP>1</SP> and a tab 14 is secured to an adhesive layer 44 to produce a carton in flat form, from which the carton is erected as shown in Fig. 5. Intermediate transverse partition 84 is provided with slots 174 and 176 (not shown) and partitions 86 with slots 174<SP>1</SP> and 176<SP>1</SP> into which pass tongues 288 and s288 (not shown) and 2881 and s288<SP>1</SP> (not shown) respectively formed on the longitudinal partition. This engagement and a suitable cutting and scoring of the longitudinal partition causes a splaying apart of the panels 22, 24 in the neighbourhood of the intermediate transverse partitions 84, 86. End transverse partition 82 is caused to bow outwardly of the carton by providing oblique fold lines 88<SP>1</SP>, 90<SP>1</SP> about which it is folded from panel 16; the partition is held by tongues 238<SP>1</SP>, s238<SP>1</SP> at the adjacent end of the longitudinal partition. End transverse partition 80 is caused to bow similarly. The carton is strengthened against vertical compression by feet 214, 214<SP>1</SP> (not shown) and 216, 216<SP>1</SP>, Fig. 6, which are downward extensions of end portions of the longitudinal partition and feet 230 and 230<SP>1</SP> (not shown) and 232, 232<SP>1</SP>, which are downward extensions of the intermediate splayed portions of the longitudinal partition. In a second embodiment the tongue and slot connections between the intermediate transverse partitions and longitudinal partition are modified so that the tongues are directed towards the centre cells and the end transverse partitions are scored to fold outwardly rather than to bow outwardly (Fig. 10, not shown). Alternative shapes for the transverse partitions are also described.
Patent GB-301648-A (GB)
Title: Improvements relating to beating engines for paper making
IPC: D21D1/14
Filed: 1927-12-07
Abstract: 301,648. White, J., Thomson, D. H., and Milne, H. Dec. 7,1927. Pulping engines. - In beating engines having a beater roll 1 cooperating with two or more bed plates 7, 8, separate feeding channels 9, 10, and separate discharge channels 11, 12 are provided for each plate, the trough being divided into two parts 2, 3 by an elongated back fall 4, the channel 9 being let into the backfall and the material under treatment travelling to each of the feed channels through passages situated within or without the walls of the trough. The roll may be adjusted to the bed plates, or the latter may be adjusted by mechanical or fluid pressure.
Patent GB-521355-A (GB)
Title: Improved means for the automatic control of the magnitude and/or direction of the flow of power in an electric circuit
IPC: G05D3/00
Filed: 1938-11-15
Abstract: 521,355. Momentary-contact switches. SAYER, C. E., and NALDER BROS. & THOMPSON, Ltd. Nov. 15, 1938, No. 33213. [Class 38 (v)] [Also in Group XXXV] A torque is exerted on a spindle 1. A spindle 6 carrying a disc 5 is driven from the spindle 1, for example by a spiral spring 7, so that its movement lags; the lag may be due to inertia, with or without a retarding force such as that of a vane in liquid. Contacts 3, 4 on one of the elements 1, 5 cooperate with a contact 2 on the others. Contact established at 3 or 4 is temporary and its duration may be varied by adjustment of the spring 7, of the inertia of the disc, or of the retarding means. The spindle 1 may be subject to an adjustable constant bias torque arranged so that it does not tend to restore the spindle to any given position.
Patent GB-1151013-A (GB)
Title: Process for the Preparation of Unsaturated Nitriles.
Filed: 1967-07-20
Abstract: 1,151,013. Preparation of unsaturated nitriles. E. I. DU PONT DE NEMOURS & CO. 20 July, 1967 [28 July, 1966], No. 33326/67. Heading C2C. Unsaturated nitriles are obtained by reacting a terminal alkyne of the formula RC#CH, where R is hydrogen, C 1-6  alkyl or phenyl, with hydrogen cyanide in the presence of a nickel compound of the formula where M is P, A 5  or Sb, n is an integer of 1 to 4 and X is R<SP>1</SP> or OR<SP>1</SP>, where R<SP>1</SP> is an alkyl or aryl group of from 1 to 18 carbon atoms, at a temperature of from 30 to 200 C. The reaction may be effected under a pressure of 0À5 to 100 atmospheres in the presence of an inert diluent, e.g. liquid hydrocarbons, esters or nitriles, and the catalyst, to which a modifier, e.g. Lewis acids such as zinc, magnesium, stannic or aluminium chlorides, or triphenylboron, may be added, may be prepared in situ. The hydrogen cyanide may be swept over or bubbled through the reaction mixture, optionally in a stream of nitrogen. In examples, the unsaturated starting materials employed are acetylene and methyl- and phenyl-acetylenes.
Patent GB-800030-A (GB)
Title: Improvements in or relating to the production of bakers' yeast
Inventor: PYKE MAGNUS ALFRED
IPC: C12N1/18
Filed: 1954-11-17
Abstract: In the aerobic propagation of bakers' yeast on nutrient media, during which molasses is added continuously or intermittently, an excess of fermentable sugar is maintained over that necessary for achieving the maximum yield of yeast, thereby restricting the yield to at least 10 per cent less than the maximum attainable and producing a yeast containing an enhanced concentration of maltase. Preferably the molasses is added incrementally, e.g. exponentially, and the yield is restricted by 10-30 per cent either by increasing the concentration of molasses up to as much as 66 per cent greater than that necessary for maximum yield of yeast, or by reducing the proportion of seed yeast and the level of aeration.  The excess of sugar can be maintained during the whole or part of the propagation period; advantageously a sequence of at least two consecutive propagation periods is employed, e.g. two consecutive periods of 12 hours in which an excess of sugar is maintained for the first 3 hours of each period (the last 9 hours being used to obtain maximum yield) followed by a third period in which an excess of sugar is maintained throughout.  Preferably the sugar used in the third period contains a large proportion, e.g. about 80 per cent, beet molasses, while 100 per cent cane molasses is used in the first two periods; alternatively the first and second periods may employ beet and cane molasses, respectively. The invention excludes processes in which beet molasses is added to yeast grown on beet molasses in the preceding period.
Patent GB-1132325-A (GB)
Title: Coating compositions
IPC: C09D133/12
Filed: 1966-07-26
Abstract: 1,132,325. Coating. MONSANTO CO. 26 July, 1966 [26 July, 1965], No. 33529/66. Heading B2K [Also in Division C3] Articles are coated by applying to their surfaces a coating composition comprising a polymer of methyl methacrylate, an organic solvent for the polymer, and a compatible amount of a plasticizer of formula in which R 1  is furfuryl, tetrahydrofurfuryl or a group of the formula X (OR 3 ) m -, where X is alkyl, aryl or aralkyl, R 3  is an alkylene group of two or three carbon atoms, m is an integar and R 2  is a benzyl or nuclearly substituted benzyl group. In the Examples metal panels are coated.
Patent GB-820044-A (GB)
Title: Improvements in or relating to circuit arrangements for adding two numbers
IPC: G06F7/38
Filed: 1957-10-28
Abstract: 820,044. Circuits employing bi-stable magnetic elements. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 28, 1957 [Oct. 31, 1956], No. 33544/57. Class 40 (9). [Also in Group XIX] In a serial adder for binary numbers, registers for two digits to be added and a carry digit are inductively coupled with binary magnetic memory elements S and Z and with a memory device D in a manner such that, under control of a first reading pulse, the elements S and Z are set to " 1 " if at least one and at least two respectively of the three digits to be added is/are "1," and the device D is set if all three digits are " 1," and the element Z and device D are inductively coupled with the element S in a manner such that, under control of a second reading pulse, a zero-setting pulse is transferred from element Z to element S if Z is set to " 1," and the action of this pulse is eliminated by a pulse from device D if the latter is also set. The arrangement shown employs magnetic cores having a substantially rectangular hysteresis loop, the cores being coupled by transfer circuits comprising a rectifier, capacitor and resistance such as G1, C1 and R1. The numbers to be added are stored in shift registers A, M; and the cores A1, M1 storing the lowest digits, and a carry-storing core C are coupled through a single transfer circuit G2, C2, R2 to cores S, Z and D. The number of turns of windings W6, W7 and W8 is such that when cores A1, M1 and C are reset to " 0 " by a reading or shift pulse applied to all windings T1, core S, Z and D will be set to " 1 " only if at least one, at least two or all three of A1, M1, C registered " 1 " respectively. Cores Z and D are coupled to S through a further transfer circuit G4, C4, R4, and Z is coupled to C through circuit G3, C3, R3, whereby, when a second reading pulse is applied to windings T2, the new carry is transferred to C and, if Z is set to " 1 " and "D" is not, a zerosetting pulse is applied from winding W9 to winding W11 on S; if, however, D is also set to " 1 " this pulse is eliminated by a pulse in winding W10. The sum of the numbers is sent to register A via transfer circuit R5, C5, G5. The discrimination of core D may be improved by supplying a pre-polarizing D.C. current to one of the windings. In a modification (Fig. 4, not shown) the device D comprises two cores which are coupled to cores A1, M1 and core C respectively.
Patent GB-1161647-A (GB)
Title: Thin Film Field-Effect Solid State Devices
IPC: H01L21/316
Filed: 1968-07-15
Abstract: 1,161,647. Semi-conductor devices. RADIO CORPORATION OF AMERICA. 15 July, 1968 [4 Aug., 1967], No. 33569/68. Heading H1K. In a thin film FET the gate insulation comprises a layer of plasma-anodized aluminium oxide. A shown, Fig. 2, an aluminium gate electrode 14 is vapour-deposited on an insulating substrate 12 which may be of ceramic, glass or quartz, and a layer 16 of aluminium oxide is formed by plasma-anodizing the aluminium. A semi-conductor layer 18 of cadmium selenide is vapour-deposited over the insulation and source and drain electrodes 20, 22 of indium are then vapour-deposited. The gate electrode has a lateral extension (24, Fig. 1) which is masked during the formation of the insulating layer to provide a gate contact. The masking can be performed by contacting the extension with a probe by means of which the aluminium film is positively biased relative to an anode which together with a cathode produces a glow discharge in an atmosphere of dry oxygen to plasma-anodize the aluminium.
Patent GB-1154437-A (GB)
Title: Improvements in Soldering Tools
IPC: B23K3/03
Filed: 1967-07-21
Abstract: 1,154,437. Soldering irons. ROYSTON ELECTRIC PTY. Ltd. 21 July, 1967 [25 July, 1966], No. 33676/67. Heading B3R. [Also in Division H5] In a soldering tool of the kind comprising an elongated electrically heated tubular element 6 with a soldering tip 7 secured thereto and a tubular support handle 8 through which the leads 9 pass, a bush or spacer 11 of electrically and thermally insulating material is secured to element 6, and a tie rod 12 extending longitudinally through the handle 8 and spacer 11 has one end attached to element 6 and its other end attached to the other end of handle 8, such that during assembly the rod 12 draws spacer 11 partly into the end of handle 8 to engage the tubular wall only at circumferentially spaced locations thereon and secure element 6 to the handle. Spacer 11 has circumferentially equally spaced ribs 14 around its periphery for engaging the outwardly flared end 13 of handle 8. Heater element 6 comprises a wire 15 helically wound on a support 16, the wire ends being connected to terminals 17 through spacer 11. A cord clamp 24 has grooves for leads 9, which it clamps against an inclined wall 25, and clamp 24 is spaced from spacer 11 by a key member 27, see Figs. 3 and 4 (not shown). Tip 7 is removably secured to support 16 via a ferrule 23. Lug 21 provides an earth connection.
Patent GB-876925-A (GB)
Title: Improvements in the coating of photographic emulsions
IPC: G03C1/74
Filed: 1957-10-30
Abstract: <PICT:0876925/III/1> Liquid photographic emulsions are coated on to a support, e.g. photographic plate, film, or paper, by establishing a uniform electrical potential difference, e.g. less than 10,000 volts, between the surface of the support and the emulsion, and then applying the emulsion to the support.  The support may be rendered electrically neutral, e.g. by passage between a pair of earthed rollers and then directing a flow of ionized air on to the surface of the support, and a uniform electrostatic charge may be applied to the surface of the support prior to the coating operation, e.g. by directing a flow of ionized air of the desired polarity on to the said surface according to U.S.A. Specifications 1,678,869 and 2,497,604.  An electrostatic charge of opposite polarity to that on the surface of the support may be applied to the emulsion just before the coating process.  As shown, film support 21 passes between earth pressure rollers 23 and 25 and between devices 33 for generating and directing a flow of ionized air on to the surface of support 21.  A flow of ionized air of the desired polarity is directed on to the support by device 37 and the support coated on coating roll 39 with liquid emulsion 47 which is charged by a source of electrical potential 41 connected to the metal orifice 43 of the hopper 45.
Patent GB-343010-A (GB)
Title: Improvements in kinematograph film and in machines for the use of same
IPC: G03B41/08
Filed: 1929-11-07
Abstract: 343,010. Kinematography. JOHN, W. E., National Bank Buildings, Simmonds Street, Johannesburg, South Africa. Nov. 7, 1929, No. 33876. [Class 97 (i).] Pictures taken and projected with a continuously moving band of lenses, such as described in Specification 290,372, [Class 97 (i), Optical systems &c.], the film also moving continuously, have their greatest dimension A, Fig. IV, lengthwise of the film. The pictures may not take up the whole width of the film, leaving a space for descriptive matter, or for a sound track in the case of talking films. Lenses with diameters approximating to this greatest dimension are used. The film is taken and projected with a horizontal movement. In the projection apparatus the spools 4, 5, Fig. II, are mounted on vertical spindles, the take-up spool 5 being driven by frictional contact with a rotated disc supporting it. More than one picture may be projected at the film gate 21 and composed by a lens 16a at a gate aperture 22 behind the projecting lens 23. Specification 319,302, [Class 97 (i) Optical systems &c.], also is referred to.
Patent GB-325510-A (GB)
Title: Improvements in automatic vending devices
IPC: G07F11/24
Filed: 1928-11-19
Abstract: 325,510. Kade, H. Nov. 19, 1928. Coin action, mechanical - connection.-A coin 11, inserted through a shoot 1, drops into a slot 3 in a rotatable spindle or element 2, which is normally prevented from rotation, in either direction, by hooks 6 on levers 8 engaging shoulders 7 on the member 2. The coin rests on a support 4 and its upper edge protrudes to engage fingers 12 on the levers 8. When the member 2 is rotated, in one direction or the other, by an outside knob, the coin engages the finger 12 of the lever 8, that is preventing rotation in the desired direction, and disengages the hook 6. A complete rotation in either direction is ensured by the lower edge of the coin engaging teeth on the support 4. The arrangement allows the use of two delivery mechanisms for two different kinds of articles, either of which may be operated according to the direction in which the member 2 is rotated.
Patent GB-799598-A (GB)
Title: Improvements in or relating to electrical connectors of the pin and socket type
IPC: H01R13/02
Filed: 1954-11-23
Abstract: 799,598. Two-part couplings; plug-boards. AMP., Inc. Nov. 23, 1954 [Dec. 29, 1953], No. 33918/54. Class 38 (1). A pin-connector 1 of tapered form is bent-up from sheet metal and has an integral ferrule portion 2 for crimping on to a wire and an intermediate band 2a for engagement by a tool for driving the pin into a tapered socket 5 or eyelet. Fig. 2 shows a tapered pin 10 of blade form which co-operates with a socket 12 shaped as shown. Flexible cylindrical sockets 17 for receiving tapered pins are shown in Fig. 4 mounted in an insulating block. Specification 715,074 is referred to.
Patent GB-211283-A (GB)
Title: Apparatus for use in playing games of skill
IPC: A63F5/04
Filed: 1922-12-12
Abstract: 211,283. Lane, C., Hamilton, B. T., and Murphy, T. Dec. 12, 1922. Roulette; table games.-Apparatus for playing a table game of skill comprises a rotatable member 4 having a concave upper surface, a stationary ring 8 having a series of holes 9 to receive a ball projected centrifugally from the rotatable member. and a central hollow shaft 5 into which the ball is dropped at the commencement of the game, and from which it passes through an opening 6 on to the rotatable member which is integral with the shaft. The holes 9 in the ring 8 are each assigned a number, and the player rotates the member 4 by means of the shaft 5 with the object of causing the ball to enter a hole having a high scoring value. A second ring 12 is arranged beneath the ring 8 so as normally to prevent the balls falling completely through the holes 9. The ring 12 may be rotated by a handle 15 to a position in which a series of holes in it register with the holes 9 and allow the balls to drop. The apparatus is enclosed by a glass top 16. The balls may be released by coin-freed mechanism.
Patent GB-387801-A (GB)
Title: Improvements in or relating to wearing "tips" for boots and shoes
IPC: A43B21/06
Filed: 1931-12-08
Abstract: 387,801. Boot &c. protectors. ASSHETON, H., 2, Maidenhead Court, Aldersgate Street, London. Dec. 8, 1931, No. 33998. [Class 17 (iii).] Reinforcement material from which tips for the soles and heels of boots &c. may be cut to the form desired comprises a continuous approximately straight length of rubber or similar material with a projecting flange at the base on one or both sides and with a backing of canvas to give lateral rigidity. The strip and backing may be united by vulcanization.