baber/WOPTO huggingface dataset:
Patent GB-1409637-A (GB)
Title: Pentaneheptanoic acid derivatives
IPC: C07C405/00
Filed: 1973-04-11
Abstract: 1409637 Prostaglandin derivatives; organoboron compounds; organoaluminium compounds G D SEARLE & CO 11 April 1973 [14 April 1972 8 Aug 1972] 17305/73 Headings C2B C2C and C2J Novel prostaglandin derivatives of Formula (I) in which X = -CH 2 , -CH(OH)-, -CH(OTHP)-, -(CH(OTHP)-, -CH(OSiAlk 3 )-, -CH(oAlkoAlk)-, -CH(oAlkanoyl)-, Alk and Alkanoyl containing 1 to 7 C atoms and THP being a tetrahydropryan-2-yl radical, R = H or C 1-7  alkyl, R<SP>1</SP> = H or C 1-4  alkyl, R<SP>11</SP> = OH, OTHP or OAlkoAlk, m = 6 or 7, n = 2 to 8 and the wavy lines represent the alternative α and # configuration or the epimeric mixture, are prepared by reacting a compound of Formula (II) in which R 1  = H, C 1-7  alkyl or THP, with an alkynyl compound of the formula: BY 3 , (alkyl) 2 BY, AlY 3 , (alkyl) 2 AlY, GaY 3  or (alkyl)2 GaY where each alkyl group contains 1 to 6 carbon atoms and Y has the formula with the proviso that when X is other than -CH(OH)-, the alkynyl compound has the formula BY 3  or (alkyl) 2 BY, optionally followed by hydrolysis when X is other than -CH 2 - or -CH(OH)-. 3(RS) - (Tetrahydropyran - 2 - yl) - oxy 1- octyne, 3(RS) - tetrahydropyran - 2 - yl) - oxy- 1 - hexyne, 3(5) - (tetrahydropyran - 2 - yl) - oxy- 1-octyne. 3(RS)3 - (Tetrahydropyran - 2 - yl)oxy - 3- methyl - 1 - octyne are prepared by recting the correspond alkynol with dihydropyran. The trialkynyl and dialkylalkynyl aluminium, gallium and boron starting materials are prepared by reacting a 1-alkyne with butyl lithium and reacting the product with an aluminium, boron or gallium trihalide or dialkylhalide. Compounds (I) are useful as anti-ulcerogenic and anti-fertility agents.
Patent GB-244353-A (GB)
Title: Improvements in and relating to lifting devices for disc wheels
IPC: B60B29/00
Filed: 1925-07-06
Abstract: 244,353. Nelson, E. A. July 6, 1925. Tools for facilitating the mounting of detachable wheels.-A tool for lifting a detachable wheel into position and for automatically aligning the attachment openings for the insertion of fastening studs or the like, comprises spaced parallel arms 24, 25 adapted for insertion through the stud holes 19, 15 of a wheel disc 17 and a hub 10 respectively, a yoke 26 rigidly connecting the arms. Each arm 24, 25 has a tapered rounded point 31, a shoulder 33 being adapted to fit the openings 15 of the hub 10, and convex shoulders 37 fitting the openings 19 in the disc. In operation, the arms of the tool are passed through two stud holes 19 of the disc, the tapered portions 31 being inserted through the openings 15 of the hub. The tool is then used as a crowbar to lift the wheel into position on the hub, studs being secured in the unoccupied holes 19, 15 while the disc remains supported by the arms of the tool, as shown in Fig. 2.
Patent GB-151400-A (GB)
Title: Improvements in metal alloys
IPC: C22C23/02
Filed: 1919-07-10
Abstract: 151,400. Backer, C. B. July 10, 1919. Alloys.-A light alloy suitable for internalcombustion engine pistons and connecting-rods. bearings, gears, and other purposes contains 85- 98 per cent of magnesium, 15-14 per cent of aluminium and 0.75-6 per cent of zinc, to which may in some cases be added small amounts of one or more of the metals calcium, copper, and cadmium. The metals are melted either in a crucible, from which air is excluded, or while the magnesium is covered with a flux.
Patent GB-810675-A (GB)
Title: Improvements in drill supports
IPC: B25D17/30
Filed: 1956-06-06
Abstract: 810,675. Percussive drills. DUDA, W. June 6, 1956 [June 14, 1955], No. 17446/56. Class 124. A supporting device for rock drills comprises a support held in a pilot hole, two spaced index discs fixed to the support and arranged between fork legs rotatably mounted on the support and provided with locking members engaging the index discs, longitudinally adjustable arms for supporting the rock drills hingedly connected to the fork legs, at least one bearing of the arms having an inclination graduation co-operating with an indicator on the forks, and a strut, parallel to the support, flexibly connecting the arms and displaceable thereon. As shown, a support 4 is fixed in a central hole 1 and carries two discs 9 in the form of spur wheels which are situated between forks 7 rotatably mounted on the support and which are hingedly connected to arms carrying rock drills. Wedges 11 may be inserted through apertures 10 in the forks to engage in the discs and fix the angular position of the arms with respect to the support. The arms comprise two parts 16, 16<SP>1</SP> which slide within parts 13, 13<SP>1</SP>, the latter being provided with a series of spaced holes 15, 15<SP>1</SP>, a pin 18 passing therethrough and engaging in a hole 17 in the parts 16, 16i, to fix the length of the arms. The lengths of the upper and lower arms may be different to provide an angular setting for the drill. An inclination gauge 23 on the inner end of at least one of each pair of arms co-operates with a mark 22 on the fork so that any alteration necessary to the length of arm to give a desired angle of drilling when both arms are out of the horizontal, may be made.
Patent GB-456172-A (GB)
Title: Improvements in electrically heated chicken brooders
IPC: A01K31/19
Filed: 1935-06-18
Abstract: 456172 Electric brooders J BEE Sunny Bank Hambleton near Blackpool 18 June, 1935 17453 Headings AIM and M9I An electrically-heated brooder or hover comprises a frame portion 4 mounted on short adjustable legs 2 and provided with a metal roof 3, a slab or plate 6 of insulating material such as plywood board being wound on its underside with resistance wire 7 and secured by insulators to the frame 4. The space between the board and the roof is filled with insulating material 10 of a flocculent nature, while the underside of the board 6 is upholstered on its underside with material 11 such as feathers enclosed by cloth 12. Ventilating apertures 16 are formed in the board and are provided by tubes 18 having nuts and rubber washers 20 serving also to hold the upholstery in place. Slit curtains 13 suspended on wires or closely-wound coil springs are provided.
Patent GB-584916-A (GB)
Title: Improvements in or relating to television receiving apparatus
IPC: H04N5/74
Filed: 1943-10-22
Abstract: 584,916. Television. GES. ZUR FORDERUNG DER FORSCHUNG AUF DEM GEBIETE DER TECHNISCHEN PHYSIK AN DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE. Oct. 22, 1943, No. 17454. Convention date, Jan. 25. [Class 40 (iii)] Flicker is eliminated or reduced in a television receiver in which the image is produced by modifying the optical characteristics of elements in a continuously illuminated raster by means of a flicker wheel or like which causes periodic reduction of the illumination of the image additional to that produced by the waxing and waning of the modulation due to scanning. The receiver is similar to that described in Specification 543,485. Light from a source 11 is directed through a grille 15 and lens 16 and through the transparent disc 2 included within the receiving tube and carrying a transparent fluid film 1 which is deformed in accordance with charges induced by a scanning cathode-ray beam 9. The grille 15 is imaged by lens 16 on the elements of another grille 17 so that light only reaches screen 25 when and where film 1 is deformed, thus producing the received image on screen 25. The flicker wheel 28 is introduced just in front of the disc 2. The wheel is formed with sectors of varying opacity and is rotated in synchronism with the scanning. In one form the flicker wheel is formed with sectors comprising a number of radially-extending opaque fillets of varying width. In another form, the disc includes transparent sectors separated by opaque bars for producing the required interruption and in a variation of this form two similar discs are employed which may be separately rotated in synchronism either by the same or different motors, but with adjustable phase displacement to afford a controlled light interruption. The flicker wheel may be included in the cathoderay tube and may serve as a grid for collecting secondary electrons emitted from the film 1. The opacity of the flicker wheel may be adjusted to correct for variation in the illumination of the raster ; also the wheel may be inserted immediately in front of the viewing screen 25. The film 1 is slightly electrically conducting and is discharged and smoothed by a scraper 3 after being cooled by fluid circulating in cooler 4.
Patent GB-107573-A (GB)
Title: Improvements in or relating to Airships, Aeroplanes and the like.
IPC: B64D35/04
Filed: 1916-12-05
Abstract: 107,573. Soc. des Moteurs Salmson (SystÞme Canton-Unne). June 29, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Propelling. - An aeroplane or airship has two motors arranged in the longitudinal axis of the aircraft, one motor driving directly a screw propeller in that axis, and the other driving two side screw propellers arranged symmetrically. Fig. 5 shows an aeroplane having two motors m<1>, m<2>, the motor m<1> driving a propeller h<1> direct, and the motor m<2> driving two propellers h<2> through gearing t, p. The motor m<2> may have a transverse shaft and occupy the position of the gearing t. All three propellers may be arranged in front of or behind the main plane, or the propellers h<1>, h<2>. may be on opposite sides of the plane.
Patent GB-878817-A (GB)
Title: A method of forming a cladding assembly
Inventor: STILES LLOYD CALDWELL
IPC: B23K1/00
Filed: 1959-05-22
Abstract: 878,817. Making clad plates; brazing. CHICAGO BRIDGE & IRON CO. May 22, 1959, No. 17470/59. Classes 83 (2) and 83 (4). In making a cladding assembly to be heated and evacuated during cladding, a cladding plate and a base-plate are assembled with brazing material therebetween and another plate over the cladding plate, and the cladding and other plate are sealed together about the edges of the cladding plate except for a small opening or openings whereby gases between the plates may escape and the edges of the assembly are hermetically sealed to produce a chamber adjacent the base-plate and cladding plate with an opening for evacuating the chamber. In producing two clad base-plates, a lower baseplate 10, Fig. 2, brazing material 11, e.g. copper foil, cladding plate 12, second cladding plate 13, brazing material 14 and upper baseplate 15 are assembled and the cladding plates which are made up of welded together rectangular sections are welded at 21 around their edges except for a small hole or slit 22, Fig. 3. The base-plates are spaced by shims 16 and welded at 17, an outlet 17 connected to a vacuum pump being provided for evacuating the interior during brazing. In a modification the small opening may be a drilled hole. The base-plates may be of steel and the cladding plates of nickel steel, stainless steel, nickel alloy, e.g. " Monel " and " Inconel " (Registered Trade Marks) or nickel and a separator, e.g. aluminium oxide may be provided between the cladding plates. In an embodiment for producing a single clad plate a base-plate 30, Fig. 5, brazing material 31, cladding plate 32 and cover-plate 33 are placed together, the edges of cladding'plate and cover plate are welded at 34 with an opening 35 and the edges of the sandwich are sealedby shims 36 welded at 37 an evacuating opening 38 being provided. In another embodiment, cladding plates 50, 51, Fig. 7, sealed together at 52 except for opening 53 are assembled with brazing material 54 and baseplates 55, 56, cover-plates 57, 58 being provided, in which the base-plates may be welded with small openings provided. The sandwich may be turned inside out with the cover-plates adjacent the cladding plates. Two or more sandwiches such as shown in Fig. 2 may be arranged back-to-back.
Patent GB-931890-A (GB)
Title: Cathode assembly
IPC: H01J1/20
Filed: 1962-05-07
Abstract: 931,890. Thermionic cathodes. SYLVANIA ELECTRIC PRODUCTS Inc. May 7, 1962 [May 5, 1961], No. 17508/62. Class 39 (1). A cathode assembly includes a heater 21 spaced from a cylindrical, emissive sleeve 22 by a resilient coil 12 of insulated wire which has spaced exterior portions 13 bearing against the sleeve 22 and spaced internal portions 15 engaging the heater. As shown, coil 12 is formed by winding tungsten or molybdenum wire, coated before or afterwards with aluminium oxide, round a mandrel of square or other polygonal crosssection, and then allowing it to unwind slightly to a diameter slightly greater than that of sleeve 22. After inserting the heater within coil 12, these two elements may be coated with alundum before inserting them in cathode sleeve 22 which may have an internal coating 24 of aluminium oxide. Alternatively, an elliptically wound spacer coil may be used or a coil of repetitive hour-glass contour.
Patent GB-712954-A (GB)
Title: Selenium rectifiers
IPC: C08L69/00
Filed: 1952-07-11
Abstract: A selenium rectifier has an artificial barrier layer between the selenium and the counter electrode, consisting of a lacquer comprising a solution of a methyl substituted para or meta diamino benzene in a nitro alkane.  Between 1 per cent. and 4 per cent. of the diamino benzene may be added to nitro methane to form the solution together with up to 1 per cent. of a film forming material such as a nitro-cellulose resin.  The resin solution may consist of 10 per cent. nitro-cellulose, 50 per cent. toluol, 15 per cent. butyl alcohol, 15 per cent. butyl acetate and 10 per cent. ethyl acetate.
Patent GB-483260-A (GB)
Title: Improvements relating to air discharge valves for calandrias for single and multipleeffect evaporators
IPC: D06C15/00
Filed: 1937-06-24
Abstract: 483,260. Fluid - actuated valves. MIRRLEES WATSON CO., Ltd., and SEMPLE, D. M. June 24, 1937, No. 17573. [Class 135] An air-discharge valve for calandrias for single and multiple effect evaporators is closed against the action of a spring 6 or the like due to the partial vacuum created above a piston 11 connected to the valve member 4, when the proportion of condensable vapour to incondensable medium in the gaseous flow increases. The casing 1 has an inlet branch 2 connected to the calandria and an outlet branch 3 connected to a main steam condenser or other evacuating apparatus. The valve member 4 is preferably of the double beat type as shown and has a stem 5 provided with a passage 12 which connects the outlet 3 to the space above the piston 11. A proportion of the fluid flowing through the valve passes through the clearance between the piston 11 and its cylinder 7. The latter is surrounded by a water jacket 9 through which water is circulated by pipes 10 to promote condensation of the condensable vapour above the piston. The spring 6 is adjusted by a screw 14.
Patent GB-696050-A (GB)
Title: Improved manufacture of odourless soaps from low grade oils
IPC: C11D13/04
Filed: 1950-04-18
Abstract: Odourless soap of high consistency is made continuously from low-grade animal or vegetable oils containing or consisting of unsaturated oils or fats by treating the fatty acids thereof with molten alkali at about 300 DEG C in the absence of water and at substantially atmospheric pressure.  The unsaturated components of these oils and fats, which give rise to bad odours and form soft soaps, are converted by the reaction, known as the Varrentrapp reaction, into saturated compounds of two or more carbon atoms less with liberation of hydrogen.  The soaps formed are not only harder but are also deodorized.  The fats and oils are used in the form of their fatty acids obtained by splitting, the glycerine obtained as a by-product being separated from the fatty acids before the soap-making reaction.  In an example, the fatty acids at a temperature slightly above melting point and the molten alkali are passed together duly dosified to a saponifier where they react at about 300 DEG C.  The soap leaves the saponifier continuously and the hydrogen passes through a condenser and water seal, which latter maintains a slight uniform pressure in the system to prevent entrance of air.  An even temperature is maintained with the help of a small fuel oil burner.
Patent GB-436978-A (GB)
Title: Improvements in devices for supporting umbrellas, sunshades, walking sticks and the like, for display purposes
IPC: A47F7/00
Filed: 1934-06-14
Abstract: 436,978. Umbrella stands. SAGE & CO., Ltd., F., and BOSKER, B., 58, Gray's Inn Road, London. June 14, 1934, No. 17686. [Class 52 (v)] A device for supporting and displaying a plurality of umbrellas, sunshades, walking sticks or like articles comprises one or more pairs of plates 1, 4, separated by a strip of rubber or other resilient material 3, the rubber 3 being held by the plate 4 which slides in channels formed by the bent over side edges 2 of the plate 1. Large coaxial holes which are provided in the plates 1 and 4 surround smaller holes in the rubber 3 and are aligned with holes or sockets 9 in a base 8 associated with the plates 1, 4 and the rubber 3. The ends of the strip 4 may be extended and may be bent over to support strips 1 and 4 and rubber 3 from base 8. The holes 9 may be conical and are adapted to support the ends of the umbrellas &c. 10 which are first pushed through the holes in the rubber 3. The holes in the rubber 3 may be replaced by slits or slots.
Patent GB-497843-A (GB)
Title: Improvements in or relating to valves for hydraulic systems
IPC: F16K11/07
Filed: 1937-06-25
Abstract: 497,843. Hydraulic valves. INDIA RUBBER, GUTTA PERCHA, & TELEGRAPH. WORKS CO., Ltd., TARRIS, F. J., and WEBB, D. June 25, 1937, No. 17711. [Class 135] A control device for producing two differentially adjustable hydraulic pressures comprisies a pair of valves each comprising one or more movable elements controlling the communication between inlet and outlet ports 134, 152 and subject to the pressure regulated by the valve and to an independent fluid loading pressure acting in opposition to the said regulated pressure, means being provided to effect differential adjustment of the independent loading pressures. In Figs. 1, 2, two similar regulating valves are arranged in parallel relationship in a single casting 120. Each valve comprises a liner 131 with inlet ports 134, outlet ports 152 and exhaust ports 153, the inlet and exhaust ports being controlled respectively by piston portions 130, 137 on the movable element. The ports 152 are opposite a reduced portion 136 of the movable element and are connected by a passage 127 with a conduit 36 or 37 leading to the brake mechanism on opposite sides of the fore-and-aft line of an aircraft. The movable element has a central bore 160 and lateral ports 138 so that its upper face is always subject to the pressure obtaining in the outlet ports 152. The sets of ports 134 communicate by annular channels 151 with a passage 150 connected to a conduit 38 leading to a pump or other source of fluid pressure. The ports 153 communicate by passages 139 with a conduit 42 leading back to the pump or to a reservoir. The movable element is loaded by a light spring 133, but this may be omitted. The spring abuts a removable screw cap 132 which holds the liner 131 in place. The piston 137 is loaded on its lower side by fluid pressure admitted by a conduit 118 or 119 from a bore 114 containing a piston valve 122 with chamfered ends. The ends of the bore are connected by passages 116, 117 with a pressure supply conduit 32 having a control valve (not shown). The valve 122 is connected by a link 39 with the rudder bar of the aircraft so that the two regulating valves and the respective brakes are differentially controlled. A restricted port 141 is provided to connect the conduits 32 and 42 whereby the fluid is constantly circulated. The dimensions of the valve may be such that the exhaust ports are not opened until the originally applied loading pressure is removed. Specifications 488,489 and 493,440 are referred to.
Patent GB-1446989-A (GB)
Title: Dry shaver
IPC: B26B19/04
Filed: 1974-04-24
Abstract: 1446989 Dry shavers JURA ELEKTROAPPARATE - FABRIKEN L HENZIROHS AG 24 April 1974 [8 May 1973] 17865/74 Heading B4B  A dry shaver comprises a main body 1, a cutter assembly 5 mounted within a cutter head 2 and pressed against a shearing foil 10 by resilient means which consist of a number of parts 3, 4, 6 and 7 adapted to exert, in succession, different degrees of pressure on the shearing foil. As shown in Fig. 1, the cutter assembly 5 is supported by a spring-bridge member 4 pivotally connected at one end to the head 2 by means of a plate spring 3 so as to obtain access to the cutter assembly. The spring bridge is formed with four spring tongues 6 and two support heads 7, the spring tongues projecting slightly above the level of the top surfaces of the heads. The cutter is urged by the spring tongues into contact with the foil when the cutter is unloaded or only slight shaving pressure is being applied. When a higher shaving pressure is applied, the spring tongues are deflected thereby allowing the base 8 of the cutter to engage the heads 7 and the spring resistance of the bridge takes effect. Finally when extra pressure is applied to the foil during shaving, the the bridge abuts against the body 1. In the embodiment shown in Fig. 3, the cutter assembly abuts against a retaining plate 13 which acts on a spring 14 located on the body 1. A further spring 16 is also located at one end on the body and at its other end, against a plate 17; the plate 17 is spaced slightly from the retaining plate 13. In operation, the two springs take up the shaving pressure successively as explained above.
Patent GB-515956-A (GB)
Title: Improvements in or relating to apparatus for the localisation of lesions of the interior of the eye
IPC: A61B1/06
Filed: 1938-06-16
Abstract: 515,956. Surgical optical instruments. TREISSMAN, F. V. June 16, 1938, No. 17889. [Class 81 (ii)] Apparatus for localising lesions of the interior of the eye comprises a small lamp mounted on a carrier and a small cautery mounted on the carrier in fixed relationship to the lamp, so that when the lamp and cautery are together inserted behind the eye the lamp lies immediately behind the cautery. As shown, the lamp A is carried by a holder B and is normally covered by a cap B<1> provided with an aperture B in alignment with the lamp. A ring cautery C lies in a flat recess C<1> formed partly in the cap B<1> and partly in the holder B, and is concentric with the aperture B<2>. A sheet of insulating material B<3> is disposed between the cauterv and the base of the recess C<1>. The cautery and lamp are connected through cables D<1> D<2> to plugs D3, D4 adapted to co-operate with a socket at the upper end of a handle furnished with three leads connected to a source of current such as a battery. The current is supplied from two of the leads to the plugs D<3>, D4 and flows back from the cautery and the lamp through a common return consisting of the metal casing of the cables D<1>, D and a co-operating conducting socket on the handle connected to the third lead. The handle is provided with a switch controlling the circuit to the cautery C, which switch may be so constructed that when depressed it only momentarily closes the circuit. In use, the lamp and cautery are inserted behind the eye until the spot of light from the lamp appears, when viewed in an ophthalmoscope, to coincide with the lesion, whereupon the switch is operated so that the cautery makes a small burn on the sclerotic thus indicating exactly the area for surgical treatment.