baber/WOPTO huggingface dataset:
Patent GB-1225035-A (GB)
Title: Optical viewing systems
Inventor: RITCHIE DAVID SCARTH
IPC: G02B23/00
Filed: 1968-03-15
Abstract: 1,225,035. Optical viewing systems. BARR & STROUD Ltd. March 14, 1969 [March 15, 1968], No. 12579/68. Heading G2A and G2J. An optical viewing system for use with a telescope or periscope comprises a body having a pair of eye-pieces 7, 8 mounted thereon and a camera position 25 provided therein, a pair of rhomboid prisms 1, 2 mounted in the body to receive light from a viewed object and means for adjusting the position of the prisms to selectively direct light to one eye-piece 1<SP>1</SP>, 2<SP>11</SP>, to both eye-pieces 1<SP>1</SP> 2<SP>1</SP> or to one eye-piece and the camera position 1<SP>11</SP>, 2<SP>1</SP>. The prisms 1, 2 are disposed in parallel vertical planes lying at right angles to the main optical axis 00 about which the prisms are rotatable with the reflecting surface 5 of prism 1 and the beamsplitting surface 3 of prism 2 centred thereon. When used for photography as shown in Fig. 1, and position 1<SP>11</SP>, 2<SP>1</SP> in Fig. 2 light entering the system is split at surface 3 so that part is transmitted to prism 1 to be reflected upwardly by surface 5 to surface 6 which directs the light through aperture 25 into a camera 24 and part is reflected downwardly to surface 4 of prism 2 which directs the light into the left eye-piece 8. For binocular use 1<SP>1</SP>, 2<SP>1</SP>, Fig.2, prism 1 is pivoted, about axis 00 to a second stable position 1<SP>1</SP>, in which both prisms are disposed downwardly from axis 00 and are equally inclined to but on opposite sides of the vertical plane through axis 00. This is achieved by rotating a lever 14 connected by a sprung roller (28), Fig. 4 (not shown) and gearing 11, (12, 13), Fig. 3 (not shown) to a shaft 10 which carries prism 1 so that light transmitted by prism 2 is reflected into the right eye-piece 7. Iriterocular distance may be adjusted by pivoting prism 1 and eye-piece 7 together about the main axis 00 along curve C. This is acheived by rotating a lever 26 associated with a bracket 16 which supports the eye-piece 7, is engageable with the holder of prism 1 and is rotatable about shaft 10. For monocular use 1<SP>1</SP>, 2<SP>11</SP>, Fig.2 prism 2 is pivoted to a position 2<SP>11</SP> out of alignment with the main optical axis 00 by rotating its associated lever 22 and supplementary lenses 23 are introduced into the right eye-piece 7 to maintain the focusing thereof.
Patent GB-237202-A (GB)
Title: Improvements in or relating to chairs for railway rails
IPC: E01B9/54
Filed: 1925-05-14
Abstract: 237,202. Griffiths, J. P., and Wilson, W. Street-. May 14, 1925. Chairs with separate jaws.-Chairs consist of a base-plate a and jaw k secured together, and a movable jaw e engaging a lug c separate from but secured to the base a, all the parts being rolled. The jaw e which is tapered has a shoulder e<1> engaged by a projection c<1> on the lug c, and is secured to the sleeper by a coach screw passing through a hole g in the jaw e and slot h in the base a. In the case of bull-head rails, Fig. 1, both jaws engage the rail web, while in the case of flange rails, Fig. 3, both jaws engage the rail foot although the jaw k may also engage the rail web.
Patent GB-607769-A (GB)
Title: Improvements in and relating to the treatment of fibrous materials especially the treatment of documents such as maps
IPC: B41M7/00
Filed: 1944-07-03
Abstract: 607,769. Proofing permeable materials. BUTLER, J. B. July 3, 1944, No. 12623. Convention date, Sept. 9, 1943. [Classes 96 and 140] Fibrous non-woven non-textile material is waterproofed and/or fireproofed by subjecting it to a polymerising solution containing a vinyl compound, e.g.. vinyl acetate, which is polymerised in situ, the amount of solution applied being limited to that absorbed by the fibres and a thin coating round individual fibres so as to leave all the natural prominences before carrying out the polymerisation in situ. The apparatus comprises a zinc-lined trough 2 containing the treating solution 6 in which a steel roller is held resiliently: an apron 7 and a plate glass drain board 8 extend from opposite sides of the trough. A drying arrangement directly above the draining board comprises rods 16 held on a chain guide and support 11, each rod having two clips 18 for holding the treated material. A depending portion 17 on the rods engages in the links of chains 15 which are driven by a crank. The map or sheet to be treated is passed under the roller 4 and is covered with the treating solution and then hung from the clips 18. A composition comprising preferably 10-16 per cent of vinyl acetate, toluol and either methylated spirits or alcohol may be used as the treating solution. Vinyl chloride or chloroprene may also be used as the polymerising substance. Catalysts such as perborates, percarbonates, benzoyl peroxide, hydrochloric acid, aldehydes, halides, e.g., of zinc or tin, may be used, and ultra violet light or water aid polymerisation as do heat, light infra-red light or oxygen. Alternative solvents are benzene, toluene, acetone, ethyl acetate, butyl acetate, carbon tetrachloride, trichlorethylene, chloroform or hydrocarbons. The material to be treated may be of cellulose, fibre, papier-mache, paper, card. pasteboard, cardboard, corrugated board, cotton, linen or other fibrous flexible material, and the solution may alternatively be sprayed or brushed on. Drawings or patterns made with colour, charcoal, soft pencil &c. may be fixed on the material by the treament. Ironing or calendering treatment may be given providing the pressure does not remove the " tooth of the surface. Writing on the treated surface can be wiped off with a rag, and painting or drawing in ink, pencil or water-colour removed by chemical or other means. Maps, deeds, drawings, cheques, labels, sheets, cards bearing printing, typing, colouring or writing, containers and moulded articles may be treated. Specifications 572,959 and 572,995 are referred to.
Patent GB-772641-A (GB)
Title: A protective device for mechanical current converters
IPC: H02M1/26
Filed: 1955-05-03
Abstract: 772,641. Converting. LICENTIA PATENTVERWALTUNGS GES. May 3, 1955 [May 8, 1954], No. 12808/55. Class 38 (2). A converting circuit comprising mechanical converters having switching chokes in series is protected with delay against damage when the contacts open prematurely, and without delay when they open too late. In the first case, with a forward arc the voltage across the contacts causes current flow through rectifier 8 and transformer 6 to charge capacitor 11 after a number of cycles set by resistor 10. The capacitor voltage applied across resistor 4 in opposition to voltage from grid bias battery 3 fires valve 2 to energize coil 1 of a protective device. In the second case the reverse voltage causes current flow through rectifier 13 and transformer 5 to apply voltage at once across resistor 4 and fire valve 2. In polyphase systems, the transformers 5 and 6 and following parts of the protective system may be common to all contacts. Automatic reconnection may be arranged. The protective circuit may also be energized by other faults.
Patent GB-657410-A (GB)
Title: Improvements in interrupter contacts for electromagnetic step-by-step switches
IPC: H01H67/06
Filed: 1949-05-13
Abstract: 657,410. Electromagnetic interrupters. GENERAL ELECTRIC CO., Ltd.. and ROSE, W. R. May 13, 1949, No. 12813. '[Class 38(v)] [Also in Group XXXIX] A self - interrupter for an electromagnetic stepby-step switch comprises a Y- shaped conducting web 1, an insulating bar 9 pivoted to the R.H. arm of the Y and having a slot engaging the L.H. arm so as to allow limited motion under the control of a U or S dead-centre toggle spring 13, and contact springs 3 arranged on one or both sides of the web. The bar is operated by a U-shaped member 15 fixed to the armature 16 and moves a contact spring 3 out of engagement with the conducting web 1.
Patent GB-253691-A (GB)
Title: Improvements in electric cables
IPC: H01B7/285
Filed: 1925-05-16
Abstract: 253,691. St. Helens Cable & Rubber Co., Ltd., and Harrison, H. C. May 16, 1925. Insulating coverings for cables and conductors. -In order to prevent the penetration of water along the interstices between the cores of multicore cables, the insulating coverings 2 of the cores, the sheathing 1, and the interposed filling are vulcanized solid at points 4 or throughout the length of the cable with the exception of those parts. such as the ends, where it is necessary to provide electrical connections. In the manufacture of the cable, the insulated cores and sheathing are coated with French chalk or other material at those parts where it is required not to vulcanize them together.
Patent GB-388602-A (GB)
Title: Improvements in or relating to kitchen ranges
IPC: F24B5/08
Filed: 1932-05-04
Abstract: 388,602. Kitchen ranges. RASANEN, I., 8, Folkskolegatan, Helsingfors. May 4, 1932, No. 12863. [Class 126.] A masonry - built kitchen range is provided with a warm storage chamber 5 below the grate and ashpit, the top, bottom, and one vertical wall of the chamber being surrounded by masonry, and the inner wall being in direct contact with a passage through which pre-heated air passes to the grate; the chamber is thus heated by conduction through the masonry and by the warm air passing up one side. In the construction shown, the air enters through an opening 9, and is heated by the waste gases passing over the inner wall of the air passage on their way to the outlet 6. A baking oven is shown at 2, and a warm water cistern at 3. A waterheater formed by a bent tube 12 attached to a protecting plate 11 may be built into the masonry at one or both sides of the fire-space.
Patent GB-834744-A (GB)
Title: Improvements in or relating to the production of thin metallized sheets of dielectric material
IPC: C23C14/20
Filed: 1958-04-23
Abstract: A thin, metallized web or sheet of thermoplastic dielectric material is made by cooling a rolled-up web of the material and then unwinding and feeding the web while it is still cool through hot metal vapour in vacuo.  Thus a web of polythene terephthalate polyester for use in manufacturing wound condensers may be cooled to -25 DEG F. to -100 DEG F. and then coated first with a minute quantity of silver and finally with zinc.
Patent GB-683198-A (GB)
Title: Shock absorber
Inventor: PATRIQUIN WILLIAM GEORGE
IPC: F16F9/49
Filed: 1951-06-01
Abstract: 683,198. Hydraulic shock absorbers. GABRIEL CO. June 1, 1951, No. 13040/51. Class 108 (iii). The invention relates to a hydraulic shockabsorber which comprises a piston 22 having an opening 37-48-55<1> along the side which cooperates with the cylinder wall 13 to provide a fluid passage, and an annular valve member 66 supported in the cylinder in sealing engagement with the cylinder walls and engageable by the piston 22 after a pre-determined degree of relative movement between the piston and cylinder during one of the strokes, for closing the passage. According to the invention the valve member 66 is of resilient material and has an annular surface 68 facing the piston and normal to the axis of the cylinder, and the inner and outer walls 67, 67a of the valve member converge away from the piston to form a sealing lip. The invention is described as applied to a shock absorber of the kind in which flow on the compression stroke takes place through circumferentially-spaced axial grooves 37 in a main piston-portion 35 and lifts a valve 50 so as to pass along grooves 48 in a reduced piston-portion 36, and escape around the periphery of a plate 55. On rebound, the valve 50 closes and flow takes place through a spring-loaded valve 42 which has a metering restriction 41. Flow to and from a reservoir 15 is controlled by valves 62 and 61 respectively. Beyond a predetermined degree of compression movement, the piston engages the valve 66 and this cuts off all flow except that provided by a metering orifice 49 in the wall of the piston portion 35. The valve 66 is mounted on the end-coil of a helical spring 71. An edge of an annular plate 72 engages a recess in the rubber ring, and lugs 73 engage the spring. A similar annular plate 77 secured to the other end-coil of the spring 71, has its edge clamped between a shoulder in the cylinder wall 13 and the lower cylinder head 63. A further valve 65 is similarly spring-mounted on the upper cylinder head 17 and cuts off flow around the periphery of the disc 55. A metering flow is provided by an orifice 57.
Patent GB-457009-A (GB)
Title: Improvements in the recovery of magnesium from magnesium oxides
IPC: C22B26/22
Filed: 1936-05-08
Abstract: In the extraction of magnesium from magnesium oxide or materials containing it by means of a reducing agent having a difficultly volatilizable oxide such as aluminium, silicon, or calcium, the operation is carried out under reduced pressure in a melt which may consist of lime, alumina, fluorides, bauxite, clay, &c., the constituents of the melt being so selected, with the addition of fluxes is necessary, that the melting point is kept af low as possible, which enables carbon or graphite to be used for the construction of the reaction vessel or electrodes or both. The operation may be continuous.  The reaction vessel is preferably enclosed in a gas-tight metal container.  The reduction of a charge consisting of magnesium oxide, lime, calcium fluoride, an iron-aluminium-silicon alloy containing 41 per cent of aluminium and 37 per cent of silicon, and an iron-calcium-silicon alloy containing 30 per cent of calcium and 54 per cent of silicon, the magnesium distilling into a cooled receiver, is described.
Patent GB-387356-A (GB)
Title: Lighting system for self-propelling vehicles
IPC: B60Q11/00
Filed: 1931-05-04
Abstract: 387,356. Supplying consuming devices. LITE WATCHMAN CORPORATION, 52, Vanderbilt Avenue, New York, U.S.A. May 4, 1931, No. 13172. Convention date, May 3, 1930. [Class 38 (iv).] A lighting system for vehicles has two lighting circuits, both capable of separate energization with manually operated switching means for effecting selective energization, and automatic switching means dependent on partial failure of current in the energized circuit for connecting the lighting circuits in parallel. Lamps 1, 2 have main filaments M and supplementary filaments S either of which can be supplied from a battery 3 or generator 4 through a selective switch 6. In series with the leads to the main filaments M are windings 11, 12 of a relay which are oppositely wound so that the resultant flux in the core 13 is normally zero. If one filament breaks or a short-circuit occurs and one of the fuses 14, 16 blows, the current in one of the coils 11, 12 fails and a flux is produced which causes attraction of the armature to connect the circuit of the auxiliary filament S to the supply through a resistance 24. In a modification the relay has four windings, a pair in opposition in the main filament leads and a pair in opposition in the auxiliary filament leads so that with either the main or the auxiliary filaments connected to the supply, on failure of one filament the relay operates to connect the unenergized circuit to the supply. The armature 18 may be provided with auxiliary contacts 27, 28 which complete the circuit of a lamp 29 to indicate that the relay has operated. Specification 374,099 is referred to. The Specification as open to inspection under Sect. 91 comprises also the modification shown in Fig: 3 (Cancelled), in which the relay has a single winding 31 connected in the supply lead 10 and the armature is normally attracted against the pull of a spring 32, but when partial failure in current occurs it is released and closes contacts 19, 20 to connect the auxiliary lamp circuit to the supply through a resistance 24. This subject-matter does not appear in the Specification as accepted.
Patent GB-220701-A (GB)
Title: Improvements in arresting means for colliery vehicles
IPC: B61K7/02
Filed: 1923-05-17
Abstract: 220,701. Griffiths, R. G. May 17, 1923. Skid; actuated or applied by speed regulators; actuated or applied by relaxation of pull.-Coinprises improved means for arresting vehicles, such as colliery trucks, on inclines, of the kind in which a skid released, by hand, bv the breaking of the cable, or by a centrifugal device, is interposed between the wheel and the track. Skids 7<a> mounted eccentrically of the wheel axles 9 are normally held clear of the track by pins 10 on the skids engaging spring-pressed pivoted levers 12. The latter are operated by cranked rods 17 carrying roller arms 18 resting upon cam bars 19, 23. The bar 23 is connected to the haulage cable 22 so that, should the latter break, the rollers on the arms 18 will be raised by the longitudinal movement of the cam bar to release the levers 12. The bar 19 may be shifted manually by a lever 21 inside the truck or automatically by a centrifugal governor device 29 should the vehicle attain an excessive speed.
Patent GB-132373-A (GB)
IPC: A01G23/12
Abstract: 132,373. Johno, S. Sept. 25, 1918. Planes and like tools.-A knife 1 for tapping rubber trees is clamped in position in claws 3 by a screw 2, and is provided with a spring wastedeflector 4. The knife-carrying head is provided with an extension 8 serving as a work gauge, and is mounted for pivotal adjustment in a handle 6.
Patent GB-337754-A (GB)
Title: Improvements in covers for pneumatic tyres
IPC: B60C9/20
Filed: 1929-04-29
Abstract: 337,754. PÚrez y PÚrez, J. Jan. 9, 1929, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Jackets and covers.-A tyre cover, or a separate protective liner for a cover, comprises two or more bands of leather, with or without an enclosed band of steel or the like.
Patent GB-830395-A (GB)
Title: Improvements in or relating to switches for use in automatic telephone or like systems
Inventor: HUBBARD ERIC WILLIAM CHARLES
IPC: H01H63/04
Filed: 1956-04-30
Abstract: 830,395. Automatic exchange switches. POSTMASTER GENERAL. April 29, 1957 [April 30, 1956], No. 13278/56. Class 40 (4). A wiper arm comprises two independently flexible wires, each bent to provide a contact adjacent that provided by the other and so disposed as to make contact with the same surface as the other. As shown in Figs. 1 and 2, a wiper carriage comprises a shaft clamp with jaws 25 and 29 and has insulating blocks 1 bolted and spigotted to it for the anchorage of upper and lower wipers 6 and 5, each bent from a continuous length of wire. The wires, which may be nickel silver-plated with rhodium, are bent to form overlapping hairpins with inturned crowns. The legs of each hairpin are anchored at each side of an insulating block and at one side of each block project as a loop 19 connected to terminal 22. A collar 21 is retained by kinks in the outermost legs of the overlapping hairpins of each wiper. In Figs. 3a and 3b a simple construction is shown in which wires 36, 37 are secured in a block 38 and have cranked trailing contact tips 39. In Figs. 4 and 5 an opposed set of wipers is shown, each wiper being formed from two lengths of wire 42, 43, splayed apart from the contact tips 48, 49, so as to be stacked together. Specification 830,396 is referred to.
Patent GB-1302322-A (GB)
IPC: C12N9/64
Filed: 1971-05-05
Abstract: 1302322 Anti-coagulant isolation ABBOTT LABORATORIES 5 May 1971 [1 June 1970] 13296/71 Heading ASB Biologically pure solutions of the thrombinlike material obtained from pit viper venom having anticoagulant activity are prepared by placing an aqueous solution containing 5-20% weight/volume of native venom buffered to a pH of 7.0 Œ 1.0 and containing from 0.15 to 0.5 molarity of total inorganic salt content on a column packed with a molecular sieve such as a partially cross-linked dextran gel or a polyacrylamide gel, eluting said column with an aqueous solution containing the same type and amount of inorganic salt content as the venom solution in small fractions and pooling the fractions which contain thrombin-like activity. The inorganic salt content preferably comprises equal molar proportions of sodium chloride and sodium phosphate. Injectable solutions are prepared from the above obtained solutions of the thrombin-like material.
Patent GB-1463576-A (GB)
Title: Blend of thermoplastic polyurethane elastomer chlorinated polyethylene and additional polyethylene
IPC: C08L75/04
Filed: 1974-03-26
Abstract: 1463576 Fabric/film laminates UNIROYAL Inc 26 March 1974 [29 March 1973] 13333/74 Heading B5N [Also in Division C3] Laminates may be foamed between fabrics and films prepared from a polymer composition comprising (a) a thermoplastic polyurethane, (b) chlorinated polyethylene and (c) polyethylene (see Division C3). In an example (3), such films are laminated to a napped cotton fabric.
Patent GB-133416-A (GB)
IPC: F16C29/04
Abstract: 133,416. Wickman, A. C., and Lambourne, A. Oct. 4, 1918. Rectilinear-motion bearings.-Bearing-surfaces for the sliding carriage of a measuring-machine, or other machine requiring precision, consist of cylindrical rods arranged with their axes parallel. One or more balls c, Fig. 2, roll on cylinders y secured in V-grooves in the carriage a and base b. At one side of the carriage, the ball rests on a single cylinder. Instead of being in separate grooves, the two cylinders may bear against a third cylinder n, Fig. 6, placed in the bottom of a single groove. The balls may be dispensed with, an upper cylinder l sliding on two lower cylinders m. At the other side of the carriage, one cylinder o slides on another. The cylinders are held against end movement by adjustable screws.
Patent GB-133689-A (GB)
IPC: F01D1/02
Abstract: 133,689. Dias, L. J. Nov. 10, 1916, [Convention date]. Jet-wheels; reversing.-3 jet-wheel comprises a narrow central web carrying wider rectangular or polygonal blades p, the whole being enclosed in a correspondingly-shaped casing. Two inlet ports 1 for forward running, two inlet ports 2 for reverse running, and two exhaust ports 3 are diametrically disposed as shown in Fig. 3. The ports 1, 2 are connected by pipes to a single reversing-valve of the rotary-disk type.
Patent GB-1495420-A (GB)
Title: Titanium pigment suspension of high solids content
IPC: C09C1/36
Filed: 1975-03-02
Abstract: 1495420 Titanium pigments BAYER AG 2 April 1975 [5 April 1974] 13396/75 Heading C1N An aqueous titanium pigment suspension, e.g. TiO 2  containing at least one aliphatic amine and/or alkanolamine as dispersant further includes at least one organic sulphonate salt, organic sulphate salt or organic sulphonic acid amide or mixtures thereof to prolong shelf life. The suspension preferably contains 0À005-2% weight of the amine, which may be ethanolamine, diethanolamine, triethanolamine, monoisopropanolamine and/ or di-isopropanolamine and 0À005-0À5% of the S-containing compound based on the pigment. The S-containing compound preferably is of formula in which R represents a linear or branched, alkyl or alkoxy radical with 10-20 C atoms, a cycloalkyl radical of 5-7 C atoms or an aliphatic-aromatic radical of 12-24 C atoms and X represents O-M or NR 1 R 2 , wherein M=NH 4 <SP>+</SP>, Na<SP>+</SP>, K+, Ca<SP>2+</SP>, Mg<SP>2+</SP>, and R 1  and R 2  independently of one another represent H, C 1- C 4  alkyl or the radical where n=0-10 and R 3 =H or CH 3 , with the proviso that only one of the radicals R 1  and R 2  represents a C 1 -C 4  alkyl and where X represents NR 1 R 2 , R does not represent an alkoxy radical. The components of the suspension may be incorporated therein in any order. The suspensions may also include other additives such as fillers, e.g. BaSO 4 , CaCO 3 , dolomite, silicates or mica and/or organic modifying agents, e.g. para-chlorometacresol or Na-pentachlorophenolate.