baber/WOPTO huggingface dataset:
Patent GB-1385183-A (GB)
Title: Process for the production of half-tone and line-work multi- colour photographic images
IPC: G03F3/10
Filed: 1971-02-26
Abstract: 1385183 Multicolour photographic processes; filters AGFA-GEVAERT 3 Feb 1972 [26 Feb 1971] 5563/71 Heading G2C Multi-coloured positive images for colour proofs are produced by (i) exposing to a multi-coloured original a photo-polymerizable material comprising a support coated with a layer containing a polymerizable monomer, photoinitiater, polymeric binder and a dye which sensitizes the material to one of the three primary colour regions of the spectrum and, if there is any overlap of regions,  using a filter to cut out any unwanted absorption, (ii) heating and pressing into contact with a receptor to transfer the unpolymerized areas which correspond to a positive colour separation, (iii) uniformly exposing the transferred areas and (iv) repeating the above process steps with two other materials each containing a dye which sensitizes it to one of the other two primary colours and using a filter for exposure if necessary. Specified photoinitiators are N-phenyl glycise or those disclosed in Specifications 1277029 and 1317900 whereas preferred binder is polyvinyl butyral. The preferred dyes are benzoflavine (blue sensitizer), rose bengale (green sensitizer) and methylene blue (red sensitizer) and they may be mixed with pigments. These dyes tend to fade on exposure but their colour is not totally destroyed. A magenta filter to cut out unwanted light above 5000 Š in exposing the benzoflavine layer comprises a 20 micron layer of erythrosine in polyvinyl butryral coated on a polyester support. A yellow filter layer to cut out light below 4500 A for the rise bengale layer comprises a 20 micron layer of flaveosine in polyvinyl butyral on a polyester support.
Patent GB-1094732-A (GB)
Title: Load handling mechanism
IPC: B60P1/54
Filed: 1965-02-09
Abstract: 1,094,732. Mobile cranes with telescopic jibs; self-loading vehicles. GREATER IOWA CORPORATION. Feb. 9, 1965 [Feb. 13, 1964], No. 5619/65. Headings B8B and B8E. The telescopic jib of a jib crane mounted on a lorry comprises a section 14, pivoted at 15 to a rotatable mast 12 and slidably supporting at least one pair of telescopic sections 22, 23. The jib is extended and retracted by an hydraulic ram, extending between the section 14 and the outer end of the intermediate section 22, and a cable 83, which is secured at its ends to the section 14, which is secured intermediate its ends to the section 23 and which passes around pulleys on the intermediate section 22 as shown in Fig. 18, whereby relative movement between the sections 14, 22 produces relative movement between the sections 22, 23. The hoist cable 84, Fig. 20, is anchored at its ends on the sections 14, 23 and passes around pulleys on the jib sections and on the piston rod of an hydraulic ram 29 mounted on the section 14 as shown, the arrangement being that, when the jib is horizontal, a load is maintained at a constant height during extension and retraction of the jib. The bottom plates of the sections 14, 22 terminate short of the forward ends of the sections whereby when the jib is retracted the load may be positioned between the outer end of section 14 and the mast, Fig. 1. The jib sections are guided by rollers, Figs. 4, 5, 7, 8 (not shown). In modifications, Figs. 22, 23 (not shown), the jib is composed of five or seven sections.
Patent GB-578322-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04L25/49
Filed: 1944-03-28
Abstract: 578,322. Electric selective signalling. WRIGHT, G. M., and WRIGHT, C. S. March 28, 1944, No. 5739. [Class 40 (i)] An electrical signalling system comprises a signal generator controlled through a commutator arm which sweeps continuously over a series of contacts each connected to a separate key of a typewriter keyboard or like device so as to effect transmission of a repetitive signal when a key is actuated, and one or more receiving stations each provided with a cathode ray tube indicator having a circular scan synchronised with the movement of the commutator arm and marked to correspond with the series of contacts and associated keys whereby the position of the scanning spot on the cathode ray tube registers an indication of each transmitted signal. At the transmitter, Fig. 1, an arm 1 is driven at about 10 revs. per sec. by a constant speed motor over a circle of contacts corresponding to letters or other signals to be transmitted. Each contact is connected to the corresponding key of a typewriter so that on depression of a key, a potential is applied through connecting bar 2 and arm 1 to the grid of a keying valve 3 to transmit a signal each time arm 1 passes over the corresponding contact. The signals are received at 4, Fig. 2, and after detection are passed to a pair of deflecting coils 7, 8 which are rotated in synchronism with the transmitting arm 1 about the axis of a cathode ray tube 5. The screen of tube 5 is marked corresponding to the transmitter contacts and the luminous spot rests on the corresponding signal marking as long as the key of the transmitter keyboard is depressed. Instead of using rotating deflection coils 7, 8, the receiver cathode ray tube may have a circular scan provided by a synchronised time base, and the received signals are then fed to a modulating grid of the tube. Secrecy may be provided by transposition of signal elements at the transmitter, a special mask being used at the receiver for decoding.
Patent GB-140579-A (GB)
Title: Improvements in the settings of steam boilers
IPC: F23M5/02
Filed: 1919-09-05
Abstract: 140,579. Jackson, J. Sept. 5, 1919. Settings; flues, external.-The bottom flue of a Lancashire or like boiler is widened at its rear end, the top part of the walls of the widened flue being so shaped as to follow the curvature of the boiler shell. The top course of the walls a. Figs. 1 and 3. of the widened portion of the bottom flue A is formed of blocks a<2> having rounded edges. A gastight joint at the top of the downtake is formed by an inclined channel-iron F<1>, Fig. 9, sliding in a second channel-iron F bolted to the cross-beam E. The iron F' is pressed against the boiler endplate by springs f. The plates C forming gastight joints at the sides of the downtake slide in large blocks in the side walls.
Patent GB-1218511-A (GB)
Title: Improvements in or relating to digital circuits
IPC: H03K3/037
Filed: 1969-02-03
Abstract: 1,218,511. Transistor bi-stable circuits. NIPPON ELECTRIC CO. Ltd. 3 Feb., 1969 [17 Feb., 1968], No. 5775/69. Heading H3T. [Also in Division G4] A bi-stable pair of transistors 322, 323, forming a Schmitt trigger, has its two inputs (the bases) connected to the two outputs (the collectors) of an emitter-coupled pair 320, 321 whose emitters receive clock pulses 324. The base 313 of transistor 321 is at reference potential, and the input signal applied to base 310 swings either side of this reference, so that either 320 or 321 conducts upon occurrence of a negative clock pulse at 324, according to the polarity of the input at 310. One embodiment (Fig. 5, not shown) uses some PNP transistors and positive clock pulses. Both PNP and NPN forms may be used as NAND/NOR or AND/OR logic circuits (Figs. 7, 8, not shown) depending upon the polarity of the logic required, by connecting further transistors (725, 725<SP>1</SP> or 825) in parallel with the transistors (720, 721 or 820, 821) which correspond to 320, 321, and connecting the input signals to these. A counter (Fig. 9, not shown) uses two of the Fig. 3 circuits (900, 901) connected through an emitter follower (924) with the modification that each circuit derives its reference voltage (at 921 base) from a delay circuit connected to an output (namely the collector of 922). Thus, depending on the existing state of the bistable (922, 923) the next clock pulse (at 915) passes (through 920 or 921) to reverse this state; the delay prevents the transistor (921) corresponding to T321) from being made conductive until after the clock pulse ends, to avoid immediate resetting of the bi-stable. A counter (Fig. 10, not shown) using NPN transistors, requires a D.C. level shifter (1050) and also uses a differentiator (1015, 1038) for the input trigger pulses. A ring counter (Fig. 11, not shown) uses three of the basic circuits of Fig. 3 (1100, 1200, 1300) the outputs of the first and second being coupled through a delay (1401, 1402) to the second and third; and the outputs of the first and second also being coupled back to the input (1115, 1113) of the first. The latter connection ensures that the first stage does not produce a further negative pulse (" 1 ") after its first pulse, if an output pulse (" 1 ") exists on either the first or second outputs; i.e. the first stage circuit is primed to produce its second pulse (" 1 ") only when the third circuit 1300 produces an output pulse (" 1 ").
Patent GB-328189-A (GB)
Title: Improvements in illuminating devices
IPC: F21V7/00
Filed: 1929-01-25
Abstract: 328,189. Dooren, J. T. C. van. Jan. 25,1929. Divided on 332,603. Ceiling and like overhead lamps. -An illuminating device giving a combination of direct and indirect light comprises a light source 7 having its axis of maximum intensity directed vertically upwards, a bowl or diffusing screen 9 providing a diffused direct illumination, and a rear parabolic reflector 8 disposed coaxially beneath the light source, which is displaced upwardly from the focus of the reflector. The source of light is arranged between the upper and lower edges of the glass plates forming the bowl, and outside the bounding edge 14 of the reflector. A casing 11 encloses the lower part of the reflector.
Patent GB-452486-A (GB)
Title: Improvements in or relating to electric lighting with reflectors
IPC: F21V7/04
Filed: 1935-02-23
Abstract: 452,486. Lamps for illuminating pictures etc.; floodlights. ALLOM, D. S., 16, Grosvenor Place, Westminster. Feb. 23, 1935, No. 5856. [Class 75 (iv)] A lamp for illuminating ceilings, pictures, tapestries, or the like, or for floodlighting buildings or other structures, comprises one or more tubular electric light bulbs A, a troughshaped reflector B of parabolic section, and a trough-shaped reflector C of circular section which intercepts those rays from the bulb or bulbs which are outside the field of the parabolic reflector and which would fall on the object to be illuminated and redirects them back through the bulb or bulbs on to the parabolic reflector without intercepting any of the rays projected by the parabolic reflector. Both reflectors are approximately co-extensive with the length of the bulb or bulbs, and the lamp may include a casing D. For illuminating a ceiling Y the lamp may be screened by a cornice X, and for illuminating a picture or the like the lamp may be arranged to project the light upwards or downwards.
Patent GB-111630-A (GB)
Title: Stencilling Devices.
Inventor: MOULDEN HAROLD
IPC: B05C17/06
Filed: 1917-04-26
Abstract: 111,630. Moulden, H. April 26, 1917. Stencilling. - A stencilling-device for packing-cases &c. comprises a disk or plate a, having circular rows of characters or numerals cut or formed in it, fixed on a knob or handle b, and an arm d pivotally mounted between the knob and the plate a. This arm has openings e for exposing the characters in position for stencilling, a straight edge f for indicating the line of the characters to be successively stencilled, and points g for assisting in spacing the characters. One of the points g may be on an adjustable slide g<1> locked by a set-screw i. When the proper character has been positioned, the points g are pressed into the case to be stencilled in the required positions corresponding to the successive characters.
Patent GB-1374694-A (GB)
Title: Retaining clips for conduits
IPC: H02G3/04
Filed: 1972-02-09
Abstract: 1374694 Clips M DAHL 9 Feb 1972 [10 Feb 1971] 5931/72 Heading E2B A retaining clip for securing conduits in a duct comprises a base 1 and side limbs 2, 3 for engaging the side walls of the duct, and overlapping retaining fingers 4, 6 inwardly extending from the limbs, one finger 4 being longer than the other, 6, and the end face of each finger having saw tooth serrations which engage to prevent a drawing apart of the fingers. The clip may be of a plastics material. (For Figures see next page)
Patent GB-825941-A (GB)
Title: System for speeding up the take-off of aircraft on runways
IPC: B66D1/26
Filed: 1956-02-27
Abstract: 825,941. Launching aircraft. PALLAVICINO, C. Feb. 27, 1956 [Feb. 26, 1955], No. 5974/56. Class 4. In apparatus for launching aircraft ir order to shorten the land runway by releasably connecting aircraft by a hook to a cable winding on and off motorised drums to impart traction to the cable for launching, the cable extends along the entire runway and the drums on which the ends of the cable wind on and off are driven through couplings and speed changing transmissions from a motor, the latter, the drums, couplings and transmissions being housed underground of the runway. A traction cable 20 is wound on drums 21, 22 keyed to a common shaft 25 driven from a motor 23 through a hydraulic or friction coupling or/and a speed changing transmission 24. The drums are coned to ensure acceleration of aircraft C or D coupled to the cable 20, which is passed round a pulley 28 at the end of the runway opposite to the drums. A brake 26 is provided to retard the drums after launching and to facilitate take-off a flywheel 32 driven from a motor 29 may be clutched at 27 to the drums. The driving apparatus is housed in a casing mounted in a pit by buffer elements. In an alternative embodiment the drums are separately driven and mounted at each end of the runway with the cable extending between them.
Patent GB-1196104-A (GB)
Title: Timing Mechanisms particularly for Controlling Electric Switches
Inventor: SMITH DAVID GIBBONS
IPC: H01H7/08
Filed: 1968-02-07
Abstract: 1,196,104. Electric switches &c. MOFFATS Ltd. 6 Feb., 1969 [7 Feb., 1968], No. 6027/68. Heading H1N. A tuning mechanism, particularly for controlling electric switches, comprises a carriage 35, slidably mounted on a shaft 25, and movable along the latter against the bias of a spring 30 by a threaded shaft 23, engaged in a notch 37 in a flange 33 on the carriage 35 and coupled at one end to an electric driving motor 16, and its other end passing through a slot 24 in a wall 12 of a base 10 supporting the mechanism, the shafts 23, 25 being parallel when the carriage 35 is driven, and the shaft 23 being disengageable by movement of said other end thereof in the slot 24 against the action of a spring 40. The illustrated apparatus is for the control of the electric heating of an oven to clean it by pyrolysis. The closing of a switch (not shown) to initiate the electric heating starts the motor 16 to drive the carriage 35, and when a tab 45 on the latter engages the actuating element 44 to open a switch 43 the electric heating is terminated and the motor 16 is stopped. The threaded rod 23 may then be lifted out of the notch 37 by rotating a bell-crank 51 to allow the carriage 35 to be reset to its starting position by the spring 30. During the electric heating operation the motor 16 also drives via gearing a shaft 20 carrying a cam 58 controlling a changeover switch 56 whereby two heating elements of differing outputs are energized alternately.
Patent GB-739953-A (GB)
Title: Improvements in and relating to doors for passenger autocars
IPC: E05D3/18
Filed: 1954-03-02
Abstract: 739,953. Door-operating appliances. WEIERTZ, A. H. March 2, 1954 [March 18, 1953], No. 6095/54. Class 65(1). [Also in Group XXXII] An autocar has on either side a single door opening outwardly, and divided vertically into two portions 7, 8, the portion 7 being suspended by hinges 4 in the body frame while the portion 8, which is the larger portion, is suspended by hinges 6 in the first portion 7. When the door is opened the two portions are maintained substantially at right angles to each other by means of a link rod divided into two portions 12, 13 axially displaceable in relation to each other and engaged by a spring 11, the link rod being connected by arms 9, 10 to the hinges 6, 4, respectively.
Patent GB-180074-A (GB)
Title: Improvements in metal framework for aircraft
IPC: B64C1/06
Filed: 1921-02-23
Abstract: 180,074. Mooney, D. J., Brown, E. E., and Emby, D. H. Feb. 23, 1921. Framework. - A hollow sheet - metal spar is formed of more than four parts and has booms consisting of corrugated channels a, connected at the bottom of their troughs to plain channels d, and webs which are connected together near the neutral axis, and are connected to the booms by fixing their edges between the edges of the channels as shown at e. The webs may be made in two or more pieces joined together at the neutral axis by flanges h, Fig. 1, or lap joints, or by flanges k, Fig. 9, or by both. The flanges k may serve as supports for side posts placed at intervals along the spar. The booms may be bent outwards, as shown in Fig. 9. The webs may be connected together at two points, so as to include a hollow part between, as described in Specification 151,352, or they may be connected by narrow curved strips which cross alternately, or by longitudinally curved strips which are arranged inside and outside the webs and together form a hollow cylindrical part.
Patent GB-457603-A (GB)
Title: Improvements in treating oil-bearing edible materials
IPC: A23K1/16
Filed: 1935-02-26
Abstract: An animal food is prepared by subjecting oil bearing nuts or seeds such as ground nuts to a slicing or scraping operation and then mixing with ground dried extracted beet pulp.  The product may then be subjected to further disintegration.  The slicing or scraping may be performed by introducing the nuts between a cylindrical surface provided with openings having punched-up walls and a co-operating plane surface or cylindrical casing: the perforated cylinder is rotated about an axis at a slight angle to the horizontal. Specification 452,515 is referred to.ALSO:Oil bearing nuts such as ground nuts are sliced or scraped by introducing them between a cylindrical surface provided with openings having punched-up walls and a co-operating plain surface or cylindrical casing; the perforated cylinder is rotated about an axis at a slight angle to the horizontal.
Patent GB-1014593-A (GB)
Title: Improvements in relating to bearings
Inventor: OGURA KANJI
IPC: F16C33/78
Filed: 1963-02-15
Abstract: 1,014,593. Bearings. KOYO SEIKO CO. Ltd. Feb. 15, 1963, No. 6198/63. Heading F2A. A seal S, for a ball or roller bearing, has a rigid core 3 and a body R of rubber of plastics material, projections 4 and 5 of which are received in grooves 7 and 8 of an outer race A and an inner race B respectively, and a projection 6 which extends axially and inwardly of the bearing and is adjacent to the outer periphery of the inner race B. The core 3 has a radiallyinwardly directed extension 1, adjacent the projection 4, and a slightly inclined inwardlydirected extension 2, adjacent the projections 5 and 6. The projection 4 fits snugly into the groove 7, the projection 5 acts as a labyrinth seal, and the projection 6 diverts lubricant inwardly of the bearing. In a modification as shown in Fig. 2, the labyrinth effect is increased by a further projection 9 of the seal body R, which also serves to prevent ingress of dirt &c. to the bearing.
Patent GB-103582-A (GB)
Title: Improvements in Concrete Building Slabs and Moulds therefor, and in Walls Comprising such Slabs.
Inventor: BELLINGHAM JOHN
IPC: E04B2/30
Filed: 1916-05-01
Abstract: 103,582. Bellingham, J. May 1, 1916. Moulds. - Concrete and l i k e building slabs or blocks of ihe type made with ribs 4, 5, Figs. 1 and 3, which meet in pairs to form the studding for hollow walls and are connected by metal keys and cement, are cast in a mould which consists of a base 16, Fig. 10, and a frame made in two parts 17, 18, Fig. 9, separable at the corner joints 30, 31, the other corners 27, 28 being rigid. Recesses 19, 20 form the halfstuds; cores 36, 37 held in grooves in the base form the recesses 9; and a fillet 21 and step 22 form the rabbets on the edges. Half-slabs are cast by the use of a thin metal division-plate, and bevelled ends are formed on the slabs by the insertion in the mould of correspondingly-shaped removable blocks. The upper face of the concrete may be finished off with pure cement, finer concrete, or a sheet of glass. The mould may be made of metal or of wood stiffened by bars 23, 24.
Patent GB-474197-A (GB)
Title: Improvements in or relating to devices for rectifying by means of interrupters actuated synchronously with the alternating current supply mains
IPC: A62C99/00
Filed: 1937-03-02
Abstract: 474,197. Converting. SIEMENS-SCHUCKERTWERKE AKT.-GES. March 2, 1937, No. 6231. Convention date, March 2, 1936. Drawings to Specification. [Class 38 (ii)] In moving contact rectifiers wherein saturable choking coils are connected in series for limiting the current, the number of these is equal to the number of phases simultaneously carrying current during the contacting periods, and these are connected to the required phases in sequence. The contact apparatus may comprise two groups of contacts, one for the cyclic switching and the other performing circuit making and interruption.
Patent GB-1082706-A (GB)
Title: A fuel container for nuclear reactors
IPC: G21C3/04
Filed: 1966-02-11
Abstract: 1,082,706. Fuel elements. ARBEITSGEMEINSCHAFT VERSUCHS - REAKTOR (A.V.R.) G.m.b.H. Feb. 11, 1966 [Feb. 12, 1965], No. 6255/66. Heading G6C. A container for nuclear fuel comprises a spherical body of moderator material having an inner hollow of rounded shape concentric with the outer spherical surface, and a rotationally symmetrical rod of moderator material disposed in the hollow to form a ring-shaped rotationally symmetrical interspace with the body. The hollow may be of spherical or ellipsoidal shape. The rod which may be cylindrical and have a spherical bulge at the centre of the hollow body, or which may be in the form of a hollow cylinder, extends through an opening in the hollow body and forms a plug which closes the opening, the rod preferably having a threaded portion which engages a screw thread in the opening. Alternatively, a plug is disposed in the opening and contacts the rod. The contacting surfaces may be plane or conical. Outwardly inclined bores may extend from the top of the rod to the interspace to facilitate filling the latter with fuel material. A recess is preferably located in the surface of the hollow body diametrically opposite the opening to seat the rod. The moderator material of the hollow body, the rod and the plug is preferably graphite, but may also be beryllium oxide or carbide.
Patent GB-205015-A (GB)
Title: Improvements in means for driving dynamo armatures
IPC: H02K7/108
Filed: 1923-03-05
Abstract: 205,015. Cullin, J. F. March 5, 1923. Dynamos, driving.-The armature of a dynamo for charging a storage battery is connected to the driving-shaft through a clutch which is located within the dynamo housing and permits the armature to rotate freely relatively to the shaft when the electromotive force of the dynamo is below that of the battery. The driving-shaft 5, Fig. 1, is journaled in the ends 2 of the housing 1, and the armature 8 is mounted on a sleeve 9 surrounding the shaft 5. The sleeve 9 has a flange 10 within which is a spring-pressed pawl 13 engaging with a ratchet wheel 11 on the shaft 5. In a modification, the driving-shaft is tubular and surrounds a reduced end of the armature shaft.