baber/WOPTO huggingface dataset:
Patent GB-145235-A (GB)
Title: A telescopic elevator
IPC: E21D15/26
Filed: 1919-05-29
Abstract: 145,235. Thomas, W. May 29, 1919. Jacks; rack-and-pinion load-handling machines. -A lifting-device for use in collieries for raising timber and supporting it while props are inserted beneath comprises a pair of guides 1 in which slide columns 3 connected by a cross-head 4 and actuated by rack-and-pinion mechanism. The holder 13 for the timber is carried by a tube 14 which slides in a tube 13 loosely mounted in a bearing 15 on the cross-head 4. A collar 17 on the tube 14 rests on a flange 16 on the tube 13 which bears on the cross-head 4 when the lifting device is in the closed position. When a load is to be raised the columns 3 are extended to the position shown in Fig. 2. A strut 19 which can pass into the tube 13 is then placed under the tube 14 and the columns 3 with the tube 13 are lowered to their original position. A pin 23 is now passed through the tube 14 and the columns 3 are again extended. The parts now occupy the position shown in Fig. 3. A bar 24 is now passed through the strut 19 and supports the tube 13 when the columns 3 are again lowered. A pin 25 is then passed through the tube 13 above the cross-head 4 and on the next extension of the columns 3, the parts take up the position shown in Fig. 4. The actuating-pinion may be driven through worm gearing. In a modification described in the Provisional Specification, the tube 14 is raised by a rack and pinion.
Patent GB-237058-A (GB)
Title: An improved coaling staith or tip
IPC: B65G63/06
Filed: 1924-06-04
Abstract: 237,058. Colville & Sons, Ltd., D., and MacBride, R. W. June 4, 1924. Guided-skip hoists.-A hoist carried by a coal. ing staith 1 comprises a vertical trunk 16 in which a skip 21 moves automatically to convey the coal from a shoot 4 to the hold without breakage. The trunk 16 is suspended by ropes from a carriage 9 movable on cantilever beams 8 at the top of the staith, and the trunk may be raised or lowered by a winch 17. Vertical guideways for the trunk are secured to vertical girders 14 which extend from the carriage 9 to carriages 12 movable on lower cantilever beams 9 overhanging the quayside. The carriages 9, 12 may be moved in or out together by gearing. The trunk is pro vided with lateral doors to communicate with the adjustable shoot 4. The skip has hinged side doors 22<a>, 22<b> connected by links 23 and opened automatically when the skip reaches the open bottom end of the trunk and the links 23 strike on abutment 34, Fig. 2. The trunk may be cylindrical. The skip is counterbalanced by weights 29, Fig. 2, suspended on the ropes 24, and by jockey weights 33, Fig. 1, which rest on brackets at, different heights and are picked up in succession by the weights 29 as the loaded skip descends. The ropes pass over sheaves on a shaft 30 provided with a ratchet wheel and pawl by which the movement of the skip may be controlled.
Patent GB-643218-A (GB)
Title: Improvements relating to spring-operated electric circuit-breakers
IPC: H01H39/00
Filed: 1948-05-20
Abstract: 643,218. Automatic circuit - breakers. REYROLLE & CO., Ltd., A., and ALLAN, A. May 20, 1948, No. 13631. -[Class 38(v)] In a spring-operated circuit-breaker particularly of the auto-reclosing type, an explosive charge is utilized to stress the operating spring which provides energy for both the closing and opening movements. The circuit-breaker has an operating linkage such as described in Specification 582,643, and is shown in Fig. 3 in its normal closed position in which the operating spring 10 is partly stressed. When a tripping catch 20 is released, the tension of the spring 10 pulls down the end 18 of a lever 17, which is pivoted at its mid-point 21 to a contact operating lever 22 pivoted at a fixed point 23. The other end 16 of the lever 17 which is pivoted to a main link 15, is prevented from moving upwards by a piston 27 on the link 15 being at the limit of its travel in a cylinder 28, so that the downward movement of the end 18 brings the mechanism into the position shown in Fig. 1 with the contacts 25 open. This opening movement causes the firing of a cartridge in the firing mechanism 30 by means of a time lag device 29, so that a brief interval after the opening of the contacts, the firing of a cartridge causes gases to enter the cylinder 28 through a port 31 to force down the piston 27. The resulting downward movement of the link 15, causes a lower lever 12 to pivot about a fixed axis 13 to stretch the spring 10; the movement of the link 15 also causes the lever 17 to pivot about its pivot 21 also to stretch the spring and to reset the catch 20. The mechanism has now reached a position in which the spring 10 is fully stressed and the piston 27 is at the bottom of its stroke where it uncovers a port 32. The pressure in the cylinder is released and the spring 10 moves the link 15 and piston 27 back, reclosing contacts 25 at the same time, the mechanism moving back into the position of Fig. 3. The provision of a cartridge magazine with suitable automatic ejecting and reloading mechanism, enables further reclosing of the circuit-breaker if tripped again due to the persistence of a fault, in which case the number of automatic reclosing operations is determined by the number of cartridges in the magazine.
Patent GB-149472-A (GB)
Title: Devices for attachment of electric conductors to insulators
IPC: H01B17/22
Filed: 1919-05-29
Abstract: 149,472. Krebs, F. H. May 29, 1919. Wire &c. strainers.-Electric conductors are secured to insulators by a two-part band encircling the insulator, one end of each part engaging the conductor, which is forced against a portion of the circumference of the insulator bv drawing the other ends of the band together, or forcing them apart if they overlap by means of an intermediate link rotating in a bearing on one part and connected to the other part. The ends 23, 24, Fig. 2, may be drawn together by attaching one end 23 to a socket 28 carrying a lever 25 into which the other end 24 is hooded, or the lever may have slots into one of which the end 24 is inserted. In a modification, Fig. 4, the end 74 is formed as a wire loop or pair of books engaging a branched slot 81 or separate slots in the lever 75, which may be channelled and be operated by a wrench. The two parts may be bent over to form hooks, or may be secured to jaws 76 to engage the conductor 72. Linings may be inserted in the jaws, which may have extended bearings 86 to prevent the conductor if broken, from straightening and slipping through. The socket 78 may have a hook of notch to retain the end 74 when tightened, so as to permit the removal of the lever 75, which is modified for that purpose.
Patent GB-1038400-A (GB)
Title: Improvements in or relating to baffles
IPC: B01F7/16
Filed: 1965-03-31
Abstract: A baffle for suspension within a mixing vessel comprises a plurality of tubular spaced members which are parallel between their ends, at which they are joined; as depicted there are two such members forming a D shape.  The orientation of the baffle may be adjustable and it may be covered with glass, ceramic material or vitrified enamel.
Patent GB-474583-A (GB)
Title: Improvements in adhesives
IPC: C09J103/02
Filed: 1936-05-08
Abstract: An adhesive composition comprises ungelatinized starch suspended in a viscous aqueous medium, the ungelatinized starch being present in the proportion of at least 15 per cent to not more than 85 per cent of dry suspension medium, and the water ranging from 2,5 to 5 parts to 1 part of total solids (starch + dry medium).  On heating this adhesive, the starch is gelatinized and the viscosity of the composition is rapidly increased.  The suspension medium preferably comprises gelatinized starch, and alkalies, formaldehyde, chlorides, urea, sodium fluoride, borax, sodium aluminate, peroxides and sulphonated oils may be added.
Patent GB-348365-A (GB)
Title: Improvements relating to hydraulic rams for raising water
IPC: F04F7/02
Filed: 1930-05-06
Abstract: 348,365. Hydraulic vanes. KNOWLES, J. A., 40, Portland Street, Accrington. May 6, 1930, No. 13853. [Class 102 (ii).] In an hydraulic ram the stroke of the waste valve B is automatically varied in accordance with the supply of water. For this purpose a cistern G, having a leakage orifice e, is supplied by an over-flow pipe d from the feed well which supplies the ram. A float b
 is carried by a lever b<4>, having an adjustable counterweight b<6>, and acting on the stem of the valve B against the action of a spring b<1>. In a modification, a float in the feed well is directly connected to the valve stem by means of a chain &c. In other modifications the cistern G is mounted on the valve stem, or on a lever acting on the valve stem, to act as a variable load. Alternatively a piston or diaphragm in the cistern may act on the valve stem.
Patent GB-511089-A (GB)
Title: New or improved apparatus for playing table games
IPC: A63F7/06
Filed: 1938-06-23
Abstract: 511,089. Table games. MORGAN, E. G. June 23, 1938, No. 13883. [Class 132 (ii)] A table game to simulate ice hockey and the like comprises a board provided with a boundary frame or cushion d having curved portions d<1>, goal devices b at either end of the board, a "ball" f, and playing pieces e representing players of opposing teams. In playing the game the pieces e are projected over the board surface by a striker such as g and rebound into the playing area on striking the rounded corners d<1>. The pieces e are provided with rounded bottoms e' to facilitate sliding and turning. The goals may have pivoted posts or may be formed by a turned-up portion of the board surface.
Patent GB-440955-A (GB)
Title: Improvements in exhaust systems for internal combustion engines
IPC: F02B27/04
Filed: 1935-06-07
Abstract: 440,955. Ejecting exhaust. JOHNSON, J., 11, Bullers Green, Morpeth, Northumberland. June 7, 1935, No. 13913/34. [Class 7 (ii)] In a multicylinder engine the exhaust pipes from individual cylinders are connected, in the order of firing, alternately to two pipes D, E, nested within one another, the inner pipe E stopping at a point nearer an expansion chamber F than the cylinders, at which point mutual ejector action takes place. The crosssectional areas of the pipe E and the annulus between the pipes E, D, are substantially the same and at least equal to that of a cylinder exhaust port. A spreading cone L and helical vanes L<1>, E<3> may be provided to whirl the gas and improve the ejector action. In the four-cylinder engine shown, the exhaust pipes from cylinders 1, 2 are enlarged to receive the end of the pipes from cylinders 3, 4, but the joints may be scarf joints. Specification 319,426, [Class 7 (ii)], is referred to.
Patent GB-1495895-A (GB)
Title: Method composition and emulsion for the treatment of image-bearing lithographic printing plates and coated plate
IPC: B41N3/08
Filed: 1976-04-07
Abstract: 1495895 Printing plate treatments; developers for photo-sensitive materials DOW CHEMICAL CO 7 April 1976 [7 April 1975 (4) 12 June 1975 (2)] 14092/76 Headings G2C and G2M Aqueous solutions for treating printing plates include an active polymer component selected from:- (a) a polyacrylamide-based polymer wherein 3-70% of the carbaryl sites are - COOM (M being H, alkali metal or NH 4 <SP>+</SP>), and the balance amide; (b) a physical blend of 97-30 wt. per cent of polyacrylamide (containing at least 98% of the carbaryl sites as amide) and 3-70 wt. per cent polyacrylic acid or an alkali metal or ammonium salt thereof; (c) a physical blend of polyacrylamide or polyacrylic acid or an alkali metal or ammonium salt thereof and at least one polyacrylamide-based polymer as in (a); the polymer being in such proportion that 3-70% of the carbaryl sites are -COOM (M = H, alkali metal or NH 4 <SP>+</SP>) and the balance amide; (d) a mixture of any two or more of (a)-(c); the average molecular weight of each of the polyacrylamide-based polymer, polyacrylamide and polyacrylic acid or salt being 5,000- 1,000,000; or (e) a mixture of one or more of (a)-(d) with up to 30 wt. per cent of a hydroxypropyl methyl cellulose which gives a 2% aqueous solution having a viscosity of 1-100cl as measured by ASTM method D2363-72. This solution may form the aqueous phase of a photographic developer, may be used as a gum solution of pH 3-9 preferably incorporating alkali metal or ammonium phosphate; may be a gum etch solution of pH1-3 and incorporate phosphoric acid or of pH 9-12À5 and incorporates an alkali metal or ammonium phosphate; may be used as fountain solutions incorporating phosphoric acid, alkali metal or ammonium phosphate, a metal nitrate, a source of chromium acids and/or alcohol; may be used as part of an asphaltum gum emulsion, wherein the solution, optionally containing phosphoric acid, is used as the aqueous phase. Concentrated solutions may be provided which provide the above solutions when diluted. When used as the aqueous phase of a developer, the non-aqueous phase includes a solvent for the exposed or unexposed portions of a photo-sensitive coating. The photo-sensitive coating comprises a diazo compound or polyvinyl cinnamate.
Patent GB-739772-A (GB)
Title: Improvements relating to electric storage batteries
IPC: G01F23/00
Filed: 1954-05-14
Abstract: 739,772. Batteries. ELECTRIC STORAGE BATTERY CO. May 14, 1954 [June 25, 1953], No. 14156/54. Class 53. The filling tube of an accumulator which limits by means of an air-lock the amount of electrolyte that can be poured into the accumulator is constructed so that the quantity of added electrolyte can be varied between upper and lower limits. The device comprises a tube 13 screwed into the the cover 10 and enclosing a second tube 14 having a slot 17 at its lower end. The tube 14 is rotatable in the tube 13 the lower end of which is cut obliquely so that by rotating the tube 14 the length of the exposed part of the slot 17 can be varied from the point A to the point B. In the position shown in Fig. 1 when electrolyte has been introduced into the accumulator till it reaches the point A no further rise in the level of the electrolyte can take place, additional electrolyte can take place, additional electrolyte remaining in the tube 14 and indicating that the battery is full. The device is for use particularly with batteries that require a greater volume of electrolyte in summer than in winter. To enable a larger quantity of electrolyte to be introduced into the accumulator the tube 14 is rotated till the whole length of the slot 17 is uncovered. The tube 14 is closed by a hinged lid 19 having a vent 20 and the space above the electrolyte is normally in communication with the atmosphere through a passage 23 which is closed by the hinged end of the lid when opened.
Patent GB-568764-A (GB)
Title: Rectifying arrangement
IPC: G05F1/325
Filed: 1943-08-31
Abstract: 568,764. Converting. STOCKER, C. P.. and HEAVENS, E. M. Aug. 31, 1943, No. 14201. [Class 38 (ii)] Single phase A.C. 10 is converted into D.C. at terminals 20, 21 by means of a leakage reactance transformer 12 and a. polyphase rectifier 22. Under light loads the rectifiers are supplied predominantly with single-phase voltage ; the addition of load changes the single-phase rectification to polyphase rectification and so tends to increase the rectified voltage compensating for the voltage drop through the rectifiers and other circuit resistances. Changes in the supply voltage are likewise compensated by a combination of saturation and phase-shifting effects.
Patent GB-1036101-A (GB)
Title: A flameproof transformer incorporating switchgear
Inventor: GRIERSON RICHARD ALAN
IPC: H01F27/40
Filed: 1961-04-20
Abstract: 1,036,101. Transformers. BRUSH ELECTRICAL ENGINEERING CO. Ltd. July 13, 1962 [April 20, 1961], No. 14245/61. Heading H1T. [Also in Division H2] A dry type flameproof transformer 1 has secured to its tank 2 a manually-operated circuitbreaker including vacuum switches 4 in enclosure 3 and operated by handle 7 through mechanism 5, 6. Alternatively, Fig. 2 (not shown), the circuit-breaker may be within the transformer tank.
Patent GB-419533-A (GB)
Title: Improvements in road contact devices for road traffic signalling apparatus
IPC: H01H3/14
Filed: 1933-05-17
Abstract: 419,533. Road signals for controlling traffic. SCOTT, W. H., Gothic Works, Norwich. May 17, 1933, No. 14282. [Class 118 (ii).] A road pad for road-traffic signalling comprises a yieldable tube enclosing electric contacts and clamped between rigid sidebars having profiled or inclined faces to engage the tube. The pad is narrow, and the contacts are bedded on resilient material so that, when contact has been made, the contacts move down en bloc and the side-bars take substantially the whole load. As described, the upper contact strip 1 is situated in a channel section resilient strip 2 of insulating material which rests on the lower contact strip 1 and has its base formed with a series of holes or one or more longitudinal openings for the passage of contact studs 4 which may be carried by either or both strips 1. The lower strip rests on a cushion comprising a thick rubber strip 8 which may be perforated or ribbed and may rest on reinforced fabric strips 9. A resilient cord 7 having a textile core 6 is seated in channel member 2 above the upper strip 1 and all the parts so far described are enclosed in a rubber tube 10 and outer tyre-like cover 12. Pressure of a vehicle wheel is transmitted to the strips 1 by cord 7 and, if the pressure is great the cord 7, strips 1 and channel member 2 move down as a whole owing to the yielding strip 8, so that the wheel rests on the side - bars 14 and damage to the pad is avoided. The pad or two similar pads arranged in parallel are secured to a metal bed 15 by the side-bars 14 which have profiled sides. The leads 11 from the contact strips are in strip form and are taken to terminals in a box 16 formed in the bed 15. The box 16 is closed by a rubber disc 18 and plate 17, the end of the inner tube 10 being flattened against the end of bed 15 by a road block 19. The pad may comprise two units, each as shown in Fig. 4, arranged side-by-side with a profiled bar between them.
Patent GB-1080996-A (GB)
Title: Information storage units
IPC: G11C17/04
Filed: 1966-03-31
Abstract: 1,080,996. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 31, 1966 [April 20, 1965], No. 14304/66. Heading G4A. A capacitive read-only store comprises a printed circuit-board 19 having rows and columns of printed conductive tabs 20, and a printed circuit document 11 having a dielectric substrate with tabs 12 on one side and the other side contacting the board 19, some document tabs 12 being removed. The document 11 has a plastic or epoxy substrate bearing a copper layer etched to form rows of tabs 12, the tabs of each row being connected in parallel to a respective gold-plated drive pad 14 at one end of the row and a respective test pad at the other, the test pads enabling testing in situ. The document is the size of a conventional tabulating card and is left unetched at the top and bottom edges to allow punching and handling by conventional equipment. Alternatively, selective tabs 12 may be removed by etching instead of punching. The board 19 comprises two copper-clad glass epoxy layers in contact, the copper layer between the epoxy layers being grounded. Each outer copper surface is etched to form columns of tabs 20, the tabs in each column being connected in series to respective upper and lower output terminals 32, 33 only one of which is used depending on the orientation of the board (see below). A stack of boards 19 is provided, inflatable air bags being used to press four documents 11 against each side of each board 19. A dielectric sheet, hooked into the air bag and an electrostatic ground shield are interposed between bag and document. Each ground shield has a layer of copper on plastic, and is connected to the internal ground plane of the respective board. Input terminals on a projecting portion of the board contact respective drive pads 14 on the documents 11 via pins and gold-plated staples in the ground shields, the latter including shield lines. Alternate boards 19 are inverted to permit closer spacing despite input sockets on the projecting portions 31. Copending Specification 1,078,244 is referred to for drive decoder details &c.
Patent GB-1167125-A (GB)
Title: Improvements in Door Latches.
IPC: E05B65/08
Filed: 1968-03-25
Abstract: 1,167,125. Latches. NATIONAL LOCK CO. 25 March, 1968 [21 Sept, 1967], No. 14321/68. Heading E2A. A latch comprises an adjustable, pivotable hook bolt 66 having two elongated slots 74, 75 through which pass respectively a pivot pin 54 and a control pin 57 urged together 'by a spring 76, the pin 54 passes also through inclined slots 64 in a pair of parallel arms 61 and through slots 53 in a pair of parallel bolt adjusting plates 51 and the control pin passes through arcuate slots 55 in plates 51. The reduced ends of a counter clockwise spring urged hub 41 are supported in apertures 52 in the plates and in the side walls of a latch housing and cover and a projection 46 on each side of an end of an arm on the hub extends into an opening in each arm 61. The hub is rotatable by a handle, whereby the arms 61 rise and are constrained to move forwardly. and the control pin 54 moves in the slot 74 in the bolt moving it longitudinally and disengaging the control pin 57 from an offset recess .56 of the slot 55, the bolt is then pivotable to unlatching position. The position of the bolt is adjustable by rotating a rod 89 through 90‹ so that screw threads on the rod are disengaged from threads in a passage in a yoke 79 having a lateral projection 81 engaging an aperture in each plate 51 .thereby freeing the bolt for movement to an adjusted position. The rod is then turned again through 90‹ to reengage the threads on the rod and in the passage. The rod has two flat opposed sides and the passage has two opposed smooth surfaces. The movement of the rod is limited to 90‹ rotation.
Patent GB-1434168-A (GB)
Title: Electro-magnetic apparatus having high holding strength and low energisation response time
IPC: H01F7/08
Filed: 1974-04-01
Abstract: 1434168 Electromagnets CENTRE NATIONAL D'ETUDES SPATIALES 1 April 1974 [3 April 1973 4 Jan 1974] 14350/74 Heading H1P An electromagnet comprises (Fig. 1) an annular coil and core affixed to a shaft and an opposite annular armature affixed to a member concentrically of or movable axially on the shaft; the core comprising a channel shaped member 2 fixedly surrounding the shaft expanded to accomodate a coil 6 and composed of plural adherent insulated laminations 2a, 2b, 2c of high saturation induction magnetisable material, e.g. Fe-Co alloy. The armature comprises an inverted channel shaped member 4 attached to sliding member 5 composed of plural adherent insulated laminations 4a, 4b, 4c of similar magnetizable material, the laminations being in apposition with corresponding laminations of the core. The edges of the laminations may be respectively shaped as asymmetrical truncated cones defining air-gaps between their flat tops (Fig. 3, not shown) to provide a centring force acting inwardly on the armature, which may be rotatable about the axis of the shaft. One or more of the inwardly placed laminations of the core and/or the armature may be slotted at a point of its circumference to reduce Foucault currents therein by interruption of a closed circuit through the lamination (Fig. 2, not shown). The electromagnet is stated to produce high attractive force and low response time on excitation. The poles may be spherical.