baber/WOPTO huggingface dataset:
Patent GB-826005-A (GB)
Title: Improvements in or relating to the preparation of light-sensitive photo-copying material
Inventor: BENJAMIN BERNARD
IPC: G03C1/60
Filed: 1955-02-04
Abstract: 826,005. Photographic light-sensitive materials. OZALID CO. Ltd. Feb. 3, 1956 [Feb. 4, 1955], No, 3452/55. Class 98(2) The support of a light-sensitive photocopying material such as diazo-type material is treated with an aqueous suspension of finely divided aluminium silicate of average particle size from 0.01 to 1 microns. Finely divided silica and/or unburst starch grain may be mixed with the aluminium silicate. Alternatively the silicate may be mixed with casein. A binder such as polyvinyl acetate, solubilized starch or starch ether may be added to the suspension and the sensitizing solution also may be included in the suspension. Reference has been directed by the Comptroller to Specification 762,117.
Patent GB-970012-A (GB)
Title: Improved electric torch
IPC: F21V19/02
Filed: 1963-01-28
Abstract: 970,012. Electric battery lamps. L. C. TAI. Jan. 28, 1963, No. 3458/63. Heading F4R. A hand torch having a casing 1 of insulating material has a head portion 2 also of insulating material pivoted thereto by two diametrically opposite conducting pivot members 10, 11, the member 10 being connected by a conducting member 13 to the reflector 3 which is housed in the head 2 and by a conducting member 14 which extends into the casing to make contact with one terminal of a battery 12 contained therein and the member 11 being connected to a conducting member 15 which makes contact with a terminal of the electric bulb 6 mounted in the reflector and to a conducting member 16 extending into the casing to make contact with one terminal of a switch 18, the other terminal of which is connected by a conducting member 17 to the other terminal of the battery 12. The bulb 6 is held in a tubular member 7 having a metal rim in contact with the reflector, the member 7 being carried in a bushing 5.
Patent GB-575950-A (GB)
Title: Improvements in or relating to devices for use in anchoring or securing together adjacent layers or placings of concrete or for forming temporary or permanent recesses or holes in concrete layers or placings
IPC: E04B1/41
Filed: 1944-02-24
Abstract: 575,950. Anchoring or recess-forming elements. EDMONDS, P. J. Feb. 24, 1944, No. 3486. [Class 20 (ii)] An anchoring or recess-forming element for embedding wholly or partly in concrete comprises a hollow body 1 open at both ends and formed of a number of longitudinally divided sections 3, 4. When the element is to be left embedded in the concrete to form a key, it is provided with grooves 11 or ribs 2 extending longitudinally, annularly, spirally or circumferentially within or without. A recessed shoulder 10 at the base of one element rests on the top rim of a similar element, when more than one element is used. The elements may be formed of earthenware, pre-cast concrete, metal or other suitable material.
Patent GB-1173402-A (GB)
Title: Improvements in Rear View Mirrors for Vehicles
Inventor: CUNNINGHAM DOUGLAS JAMES
IPC: B60R1/08
Filed: 1968-01-23
Abstract: 1,173,402. Rear view mirrors. WINGARD Ltd. 14 Nov., 1968 [23 Jan., 1968], No. 3501/68. Heading B7J. A vehicle rear view mirror of the kind having a mirror element 10, mounted in a case or housing 14, and incorporating surfaces 11, 12 of different reflecting powers arranged at a small angle to each other, wherein either surface can be brought into an operative position, is characterized in that the casing 14 is a onepiece plastics moulding of which a first part 15, in which the element 10 is mounted, and a second part 16, which carries means 17, 18 for mounting it on a ball on a supporting arm, are connected or articulated to each other along lines 19, 21-25 of reduced thickness of the plastics, so that the first part can be moved angularly into each of two positions relative to the second part via an over-centre action using the resilience of the plastics. Screw or other stops may be provided to locate the two positions accurately, and springs may assist the over-centre movement. In a modification, lines 19, 21, 22 are of equal length and are joined at their ends by slits extending through the thickness of the plastics. In a second embodiment, Figs. 5-7 (not shown), the first part of the case has a recess to receive an integral rectangular second part and is joined thereto only at the edge of the second part uppermost in use, by a line of reduced plastics thickness. The lower edge of the second part engages in a groove in the first part of such a width as to define an angular movement between the two parts equal to the angular spacing between the two reflecting surfaces of the mirror element.
Patent GB-1534032-A (GB)
Title: Supercharged dual fuel ic engine and control device therefor
IPC: F02D19/10
Filed: 1976-01-29
Abstract: 1534032 Controlling dual fuel engines LANDI DEN HARTOG BV 29 Jan 1976 [7 Feb 1975] 3519/76 Heading F1B A dual-fuel engine has a turbocompressor 24, 22 connected to an intake Venturi pipe 13 through which gaseous fuel is inducted from a pipe 11. Control of the quantity of gaseous fuel supplied to the engine is achieved by operating an air bleed valve 17, 18 which is integral with a liquid fuel injection pump control rod 20. The amount of gaseous fuel supplied is also varied by means of a slide valve 29 which varies the cross-section of the pipe 11 in accordance with the pressure in the engine intake 23 downstream of the compressor 22.
Patent GB-228947-A (GB)
Title: Improvements in and relating to electromagnetic devices
IPC: H01H1/22
Filed: 1925-02-09
Abstract: 228,947. British Thomson-Houston Co., Ltd., (Assignees of Carichoff, E. R.). Feb. 9, 1924, [Convention date]. Electromagnetic switches comprise an electromagnet 16 which successively attracts two gravity-controlled armatures 20, 21 so that contacts 40, 11 are first closed and then contacts 14, 12 are opened. The opening of the contacts 14, 12 may introduce a resistance into the circuit of the electromagnet. When the parts are in the position shown, most of the flux from the magnet 16 passes upwards through the armature 20 and this armature is therefore first attracted. The gap between the armatures 20 and 21 is thereby lessened and more flux flows through the armature 21 so that this armature is also attracted. The armature 20 has holes 24 at each side by means of winch it is pivoted to two supports 22. The contact 40 has a loose pivotal connection at 42 with a member 38 fixed to the armature 20 and is retained in place by a hook member 43 and spring 39, Fig. 4. A blow-out coil 44 and arcing horns 43, 45 are also provided. The arrangement of contacts, armatures and magnet is such that the parts may be separately manufactured and readily assembled.
Patent GB-739417-A (GB)
Title: Improvements in rocket motors
IPC: F02K9/32
Filed: 1954-02-08
Abstract: 739,417. Rocket motors. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. Feb. 8, 1954 [March 14, 1953], No. 3661/54. Class 9(2). Fig. 2 shows a rocket motor comprising a cylindrical chamber 1 containing tubular sticks 2 of propellant supported by the base of a frustoconical grid 4 and into which is screwed a plug 5 through which extend convergent-divergent openings forming exit nozzles 6 for the propellant gases. The narrow end 7 of the grid has force fit in the plug and surrounds an igniter 10 extending into the grid, but held at a distance from the propellant, from a metal casing 11 which is screwed into the plug. The grid has a base flange 9 extending to the inner wall of the casing and the openings 13 may be at least 15 per square cm. each having a diameter less than 2 mms. For a rocket motor operating with maximum pressures of 200 to 300 kg/sq. cm. at least 600 and preferably more than 1000 openings are provided. The semi-vertical angle of the conical grid is preferably between 3 and 10 degrees. An annular wad 15 obturating the nozzles 6 is adapted to yield at a predetermined pressure. A detonator 12 projecting from the plug 5 is adapted to initiate the igniter, which may contain an alumino-thermic mixture, by percussion. Stabilising fins 16 are fixed to the casing 1.
Patent GB-585286-A (GB)
Title: Improvements in or relating to the manufacture of alkali metal hydrides
IPC: C01B6/04
Filed: 1945-02-14
Abstract: Alkali metal hydrides are obtained by hydrogenating molten alkali metal whilst in admixture with a finely divided solid material inert thereto and an alkali hydrocarbide or a hydrocarbon capable of reacting with an alkali metal to form such a hydrocarbide, the hydrocarbon or hydrocarbide containing at least 8 carbon atoms.  The alkali metals specified are lithium, sodium, potassium, caesium, and rubidium.  Suitable hydrocarbons are isomeric cymenes, isopropyl benzene, isomeric isopropyl naphthalenes and other aromatic hydrocarbons containing the isopropyl group; fluorene, indene, anthracene and their homologues; crude or partly refined petroleum products containing such hydrocarbons as kerosene, gasoline and petroleum oils, waxes and jellies.  The reaction may be carried out at temperatures between the melting point of the metal and 600 DEG C., preferably between 200 DEG  and 450 DEG C., and under atmospheric or increased pressures.  Other gases which may be introduced with the hydrogen. Solid materials which may be mixed with the melt include sand, clays, powdered metals, wood charcoal, common salt, sodium carbonate, salts which are infusible at reaction temperatures, and the alkali hydride to be produced.  Specifications 276,313, [Class 1 (ii)], and 405,017 are referred to.
Patent GB-827727-A (GB)
Title: Improvements in electrically-heated devices
IPC: G05D23/24
Filed: 1956-02-07
Abstract: 827,727. Electric cooking vessel and immersion heater. WALTON, G. W. July 30, 1956 [Feb. 7, 1956], No. 3717/56. Class 39(3) [Also in Groups XXXV and XXXVI] An electrically heated saucepan 167 (Fig. 19) has a metal capsule 158 secured to its inner or outer surface, for example in one of the three positions shown, either resting on the saucepan bottom or secured to the side by a spring 168 or it may be riveted or welded to the pan. The capsule contains an electric resistance heating element comprising two wires of material having a high temperature coefficient of resistance e.g. of nickel or tugnsten and two wires not having this characteristic e.g. of nickel chrome forming a bridge for themostatic control purposes (see Group XXXV). The wires may be wound on mica and the copper capsule may be used as an immersion heater and stirrer. Figure 21 shows a saucepan with the resistor elements incorporated into its structure between the pan bottom and a baseplate 172, a serpentine heater wire 42 being embedded in an annular mass 173 of compacted magnesia, and the temperature-variable resistance element 158 being located at the centre. Various methods of using the heating resistance as part of the bridge network are described and illustrated, and the resistors forming the bridge may be chosen and located to effect control of the rate of heating as well as of the maximum temperature.
Patent GB-504318-A (GB)
Title: Improvements in and relating to the hardening of the interior of tubes and similar hollow bodies
IPC: C21D1/62
Filed: 1938-02-07
Abstract: 504,318. Hardening pipes &c. BARK, F., and BRESSE, H. Feb. 7, 1938, No. 3765. [Class 72] The interior of tubes 2 and similar hollow bodies are hardened by the spraying of liquid thereon as they an lowered, from the per forated upper closed end 7 of a pipe 3 detach ably connected to a pipe 4 in turn connected to a pump 5 which sucks liquid out of a container 1 by a pipe 6. A screer or funnel 8 is mounted on the tube 3 to direct the cooling liquid on to the walls of the pipe &c and guides 9, 10 are also provided on the tube and the screen. The liquid in the container 1 does not contact with the pipe &c. 3.
Patent GB-106257-A (GB)
Title: Improved Templet or Setting-out Appliance.
Inventor: SULLIVAN MATTHEW MICHAEL
IPC: B25H7/00
Filed: 1917-03-15
Abstract: 106,257. Sullivan, M. M. March 15, 1917. Tools for setting-out work.-Links 1, are pivoted together on the " lazy-tongs " principle by sets of rivets 5, 6, 7 which are tubular or have apertures through which a scriber or other marking-tool may be passed. For marking on curved lines, the distance between the central row of pivots 5 and the end pivots 6 may be larger than or different from the distance between the rows 5 and 8, and an arrangement is shown in Figs. 5 and 8, and an arrangement is shown in Figs. 5 wards or from the pivots 5. As shown, the pivots 6 are movable in slots 15, 16 in the links 1, 2 and also in slots 13 in transverse members 10 having slots 9 engaging the lower pivot pins 8 ccnnecting the links 1, 2. The ends 11 of the members 10 are enlarged, and have turned-over ends 12 tapped for screws 20 passing through the pivot pins 6. Heads 21 on the screws 20 are held by springs 22 in engagement with the under sides of the pins 6. Curved slots 19 in the ends 11 engage pins 17, 18 on the links 1, 2. The pivot pins are moved by operating the heads 20<a> of the screws.
Patent GB-724673-A (GB)
Title: Improvements in or relating to shuttlecocks
IPC: A63B67/18
Filed: 1953-02-11
Abstract: 724,673. Shuttlecocks. WIDEGRAN, K. A. S. Feb. 11, 1953, No. 3869/53. Class 132 (3). A shuttlecock comprises a single piece injection moulded body, the wall of the tail portion having slots 3 and forming oblique flight stabilizing surfaces 2 which merge into one another in step-like order by means of radial wall portions 4. The front portion 1 is protected by and has secured to it a member 5 having warts 6 entering corresponding holes in the front portion.
Patent GB-383272-A (GB)
Title: Improvements in electrical condensers
IPC: H01G4/18
Filed: 1931-02-06
Abstract: 383,272. Condensers. STEATIT-' MAGNESIA AKT.-GES., 18, Breite Strasse, Pankow, Berlin. Feb. 6, 1931, No. 3884. Convention date, Feb. 10, 1930. Void [Published under Sect. 91 of the Acts]. [Class 38 (ii).] Dielectric material for electric condensers comprises layers of pure cellulose, i:e. cellulose films or sheets that have been freed from their softening admixtures and which contain no foreign alcoholic or acid mixtures or radicals. The softening means may be removed by solvents and by evaporating in vacuum. The purification of the cellulose may be effected before or after assembly in a condenser, and, after purification, the condenser can be soaked in insulating material such as paraffin.
Patent GB-1256212-A (GB)
Title: Conveyor apparatus
IPC: B65H29/60
Filed: 1970-01-27
Abstract: 1,256,212. Delivering sheets; endless conveyers-transferring and diverting articles. BROOKHIRST IGRANIC Ltd. 27 Jan., 1970 [6 March, 1969], No. 3961/70. Headings B8A and B8R. A conveyer apparatus, e.g. for a stacking machine, for transporting articles in an overlapping stream 74 comprises spaced, longitudinally aligned first and second conveyers, e.g. endless wire belts 14, 14, and a third conveyer, e.g. endless wire belts 36, pivotally mounted within the space, means being operable to move stream interrupting means, e.g. fingers 68, into the stream path at the output end of the first conveyer, then pivot the input end of the third conveyer out of the path of said stream and then move the stream interrupting means out of the stream path, the stream thereafter being diverted through the space. The wire belts 14 of the first conveyer section 4 are extended to an end roller 26 in a stream diverter section 2 and the belts 14 of the second conveyer section 6 to an end roller 28 in section 2. Top wire cover belts 16 extend the length of the three conveyers. Roller 28 also locates the wire belts 36 of the third conveyer which are passed around pairs of rollers 34 pivoted via arm 32 to the roller 28. It is also drivingly connected, via a single revolution clutch (22) Fig. 1 (not shown) operated by a solenoid 70, to a sprocket 44 which in turn drives a sprocket 50. When the solenoid 70 is activated, e.g. by a switch or a faulty feed detector, the clutch is engaged for one revolution of sprocket 44 rotating sprocket 50 through a half revolution. Crank arm 56 on sprocket 44 thus urges fingers 68 into the stream path and crank arm 52 to pivot the belts 36 of the third conveyer out of the path thereby urging the articles against the cover belt 16 as in Fig. 3a (not shown), crank arm 56 then moving the fingers back out of the path, Fig. 3b (not shown), the stream thus being diverted through the space. A further activation of solenoid 70 restores the stream to its original path, Figs. 3c and 3d (not shown).
Patent GB-377119-A (GB)
Title: Apparatus for driving the rollers of roller feed tables
IPC: B21B39/00
Filed: 1932-02-10
Abstract: 377,119. Roller - way conveyers. EVANS, W. E., 27, Chancery Lane, London. -(Demag Akt.-Ges. ; Duisburg, Germany.) Feb. 10, 1932, No. 3994. [Class 78 (i).] The rollers of roller feed trains are separately driven by electric motors, each roller being supported on a fixed shaft which extends through the hollow rotor shaft of the motormounted at one end of the roller-to be supported by the outside flanged end of the motor casing. The fixed bearing supports for the motor and roller are at g, d, the latter carries one end of the shaft a while the former houses a bearing for the hollow rotor shaft c and carries, bolted to it, the stator and casing h of the motor, also indirectly supporting the other end of shaft a through the cover i.
Patent GB-436141-A (GB)
Title: Improvements in or relating to method and apparatus for wrapping boxes, containers, or cartons, with waxed paper, and sealing them
IPC: B65B59/00
Filed: 1934-02-07
Abstract: 436,141. Sealing. ROBINSON WAXED PAPER CO., Ltd., 1, Redcliff Street, and NOBLE, F. W., 47, Claremont Road, Bishopston, both in Bristol. Feb. 7, 1934, No. 4073. [Class 146 (ii)] [See also Group XVII] In a wrapping-machine the contacting surface of a seam heater 73 comprises a plurality of parallel resilient wires 169 of good heat-conducting metal.
Patent GB-167511-A (GB)
Title: Improvements in and in the manufacture of paving sets
IPC: E01C5/02
Filed: 1920-02-11
Abstract: 167,511. Penmaenmawr & Welsh Granite Co., Ltd., and Darbishire, H. W. Feb. 11, 1920. Paving-blocks.-Setts of cylindrical or approximately cylindrical shape, having their upper faces preferably rounded or bevelled, are trepanned from a block of stone of thickness equal to, or a multiple of, the axial depth of the setts. In the form shown, the setts B', Fig. 1<b> are trepanned from a single block of stone B by tubular rotary drills A, Fig. 4, the thickness of the block being equal to the depth of the setts, or a multiple thereof, division in this case being subsequently effected, for example, by indenting with a pipe cutting tool having a V-wheel, and tapping. The trepanning process may be started by placing clay on the stone, and forming therein by means of drills an annular channel into which steel or other shot D and water are placed. The drills are then related and fed downwards until they have passed through the block. Alternatively a dam of clay may be formed round the stone to retain the shot and water on the surface before commencing to drill; or a plate with holes corresponding to the drills may be used to retain the shot and water. The upper faces of the setts may be rounded or bevelled, or both, and the lower plane ends mav be faced in a lathe. The setts are laid on the road way in contact with one another and the interspaces are filled with chippings grouted with pitch or cement, or with the intermediate portions left in the trepanned blocks.
Patent GB-1128959-A (GB)
Title: Improvements in or relating to photographic emulsions
IPC: G03C1/04
Filed: 1966-01-31
Abstract: 1,128,959. Making photographic silver halide emulsions. MINNESOTA MINING & MFG. CO. Jan.31, 1966 [Feb.26, 1965], No.4210/66. Heading G2C. A silver halide emulsion which may contain a synthetic binder in place of part or all of the gelatine is made by mixing a water-soluble silver salt, e.g. silver nitrate, with a water-dispersible polymeric polyamine halide or quaternary halide in an aqueous medium to precipitate silver halide. The binder may be present or may be added at a later stage, e. g. after ripening, and part or all of the polymeric polyamine may be subsequently removed. The polymeric polyamine halide may be the halide formed by reacting the polyamine with a hydrohalic acid or the quaternary halide formed by quaternising the polyamine with an alkyl or aryl halide. Polyamine halides mentioned are the hydrobromides of polyethylenimine, poly(N-hydroxyethyl ethylenimine) and polypropylenimine and poly-4-vinylpyridine quaternised with ethyl α-bromoacetate. Other polyamines specified are polyaminoalkyl acrylates, copolymers of polyethylenimine and polypropylenimine and of polyethylenimine and polyethylene oxide, and mixtures of polymers. Synthetic binders mentioned are polyvinyl alcohol which may be cross-linked by form-aldehyde, mucochloric acid or tris-(1-aziridinyl) phosphine oxide, hydroxyethyl cellulose, hydroxypropyl cellulose and polyvinyl-pyrrolidone. A comparative Example is given in which a poly-ethylenimine and polyvinyl alcohol solution, acidified with nitric acid and to which potassium bromide has been added, is mixed with silver nitrate solution and coated on a support.
Patent GB-1041938-A (GB)
Title: Organic phosphine oxide derivatives
IPC: B01J27/06
Filed: 1965-02-01
Abstract: Dialkyl phosphinyl halides, dialkyl phosphine oxides, and dialkyl phosphinic acids (wherein alkyl includes cycloalkyl) are obtained by contacting a solution of white phosphorus in an inert solvent with an alkyl halide in the presence of a catalytically effective amount of a catalyst selected from AlCl3, AlBr3, BF3, FeCl3, and TiCl4 at a temperature in the range of - 80 DEG  to 100 DEG  C., whereby the white phosphorus undergoes reaction, hyrolysing the resulting reaction product, and separating out the required products from the hydrolysis product.  The invention also comprises di-t-butyl-phosphinyl halides which are obtainable by the above method.  The products obtained are dialkyl phosphinyl halides and dialkyl phosphine oxides when a tertiary alkyl halide is used, and dialkyl phosphinic acids and dialkyl phosphine oxides when a primary or secondary alkyl halide is used.  The preferred solvent is carbon disulphide, but benzene and pentane are also specified. The alkyl halide may be prepared in situ, e.g. ethyl chloride from ethylene and hydrogen chloride, or t-butyl chloride from isobutylene and hydrogen chloride.  The preferred molar ratio of alkyl halide to phosphorus is 1.5 to 1, and that of catalyst to phosphorus is 1 : 1.  The reaction is preferably carried out under a hydrogen halide pressure of 10-650 p.s.i.g., the halide in the hydrogen halide being the same as the halide in the catalyst.  The preferred method of carrying out the hydrolysis step involves contacting the two-phase liquid system, resulting from the initial reaction step, with water which may contain H2O2 HNO3 or H2SO4.  Two phases form again, and the solvent, e.g. carbon disulphide phase which contains the product may be separated and any organophosphorus compounds remaining in the aqueous phase may be extracted with carbon disulphide or chloroform.  The solvents may be evaporated, and the products separated, e.g. by elution chromatography.ALSO:An insecticidal composition comprises a suspension of a di-t-butyl phosphinyl halide (see Division C2) in water. Di-t-butyl phosphinyl chloride and bromide are specified.