baber/WOPTO huggingface dataset:
Patent GB-146577-A (GB)
Title: Improvements in or relating to sand-filters
Inventor: BARRON NEIL MCKECHNIE
IPC: B01D29/00
Filed: 1919-04-03
Abstract: 146,577. Barron, N. M. April 3, 1919. Filters with loose filtering-materials. - In a filter unit A, sand filtering-medium occupies a chamber LC below a false bottom A<3>, the spaces between concentric tubes C, D, and a part of the upper chamber TC. Liquid to be filtered enters through the pipe F and passes through the sand bed in the chamber TC or through an overflow E and the sand between the tubes C, D, or in the chamber LC the filtered liquid collecting in the tubes D and being discharged thereby to a chamber below the bottom A<2>. The central chamber CC communicates with the chamber LC by means of perforated nozzles A<6>. The tubes C, D may be formed of wire strips C<1> of the crosssection shown in Fig. 4 spaced apart by means of perforated annular plates or pairs of cooperating toothed rings C<2>, C<3>. Or each tube may be formed of two co-axial slotted tubes, T, U, Fig. 7, having between them vertical rows of small, preferably spherical, bodies V which may be of stone, porcelain, metal or glass. The tubes C are secured in position in the partitions' A<1>, A<3> by wedging-rings. The sand is charged into the filter through the inlet SI and discharged through the conduit G, discharge being facilitated by an ejector G<1>. The sand may be washed in the filter by water admitted under pressure through the conduit SC to the chamber below the bottom A<2> and discharged through an outlet SO. Cleansing water can also be sprayed by conduits L' against the outer surfaces of the tubes C. The unit A is shown in Fig. 1 in combination with a secondary sand filter B, the filtered liquid being collected by sand-excluding devices B<3>. The unit B has upper and lower conduits SI<1>, I for the supply and discharge of the sand. The Provisional Specification states that each of the concentric tubes may be built up of an inner perforated tubular frame with longitudinal ribs having V- shaped projecting edges and an outer sleeve formed by a winding of bevel-edged strip metal.
Patent GB-250742-A (GB)
Title: Improvements in plastic compositions made of casein
Filed: 1925-03-30
Abstract: 250,742. Abrey, R. H. March 30, 1925. No Patent granted (Sealing fee not paid). Plastic compositions containing casein. - Casein is softened by soaking in water; the surplus water is then removed and the casein is kneaded with 5-10 per cent of its weight of zinc carbonate, with or without the addition of colouring matter, and pressed into blocks, sheets, or rods. These can be hardened by immersion in a bath of formaldehyde, glycerine, and zinc chloride.
Patent GB-492087-A (GB)
Title: Improvements in apparatus for the reproduction of sound films
IPC: G11B7/00
Filed: 1937-03-09
Abstract: 492,087. Optical sound-reproducing apparatus; selenium cells ; thermionic valve input couplings. BRITISH OZAPHANE, Ltd. March 9, 1937, No. 8425/38. Convention date, March 9, 1936. Divided out of 492,165. [Class 40 (ii)] [Also in Groups XX and XL] For the reproduction of sound from films, a source of yellow or orange radiations is used in combination with at least one blocking photo-sensitive cell of small dimension highly sensitive to these radiations, and with a film having contrasting areas of blue or violet opaque to these radiations and areas transparent to said radiations. The light source may be a metallic wire for example of platinum brought to incandescence in the open air by an electric current. In the form shown in Fig. 9, the light source is a helical filament S or equivalent rectangular strip of tungsten, and a diaphragm G is placed between this source and the point of intersection F of the common tangents between the source and the objective M. The cell may comprise a metal back plate 5c, Fig. 5, a selenium layer 5b, and a covering layer of gold 5a. The connections are made by direct contact with the back plate and covering layer or by contact with a bead on the covering layer. In Fig. 5, the cell is mounted within an insulator 72 between embedded terminal plates 73, 74; the plate 73 has a central hole to allow the passage of the light, and makes direct contact with the gold layer of the cell ; and a spring 75 is interposed between the terminal plate 74 and the back plate 5c of the cell. The cell should not be more than about 2 sq. mm. in area. In Fig. 5, it is intended to be about 1 sq. mm. When several parallel tracks are to be scanned, for example as described in Specification 492,165, the cell may be a narrow strip extending across all the tracks, and may have notches between the tracks. Small cells suitable for this invention may be cut from larger cells ordinarily available commercially. The cell is preferably used with a bias as shown in Fig. 7, where a cell 76 is shown connected in series with a resistance 78 and a dry battery 77, one point of which is connected to earth while the cell is connected to the grid 79 of a, valve. The film may be made by a diazotype process, for example by means of a mixture of a diazo salt of p-aminodiphenylamine with the R salt, which gives on regenerated cellulose film without any mordant by developing in an ammoniacal atmosphere violet images of an azo-dye of which the colourless parts are of a perfect transparency.
Patent GB-1023049-A (GB)
Title: Construction of electrical circuits
IPC: H01R12/51
Filed: 1964-02-28
Abstract: 1,023,049. Two-part couplings; direct connections between conductors. SPERRY RAND CORPORATION. Feb. 28, 1964 [March 7, 1963], No. 8429/64. Heading H2E. [Also in Division H1] Connections between flat electrical conductors (represented by the thin lined hatching) of printed circuits 81, 85, 53, 87 and 91 sandwiched together with electrical insulating material 83, 101, 56, 102, and 89 are made through bores 71, 62, 103 which have been formed by chemical etching techniques. The electrical connections are made by lining the bores with metal 62a by chemical deposition and electroplating, by filling them with solder or by welding plugs in each bore. Suitable plugs or micro-miniature circuit blocks can be inserted into the bores. Reference has been directed by the Comptroller to Specification 911,718.
Patent GB-297850-A (GB)
Title: Process for the direct production of rubber goods
IPC: C09D5/44
Filed: 1927-03-28
Abstract: 297,850. Anode Rubber Co., Ltd., (Geer, W. C., Dales, B., and Goodrich Co.). March 28, 1927. Grant of Patent opposed. Latex, treating; vulcanizing-compositions.-In the direct production of rubber goods on deposition strata or moulds by dipping or electrophoresis, ultra-accelerators are employed which effect the complete vulcanization of the products during drying or by the time they are dried. The ultra-accelerators are such that vulcanization is effected below 112‹ C., or even below the boiling point of water. Suitable substances are diethylamine diethyl dithiocarbamate, dithiofuroic (dithiopyramucic) acid and dithiofuroates, and mercapto-benzothiazole. The vulcanization may be effected by heated air, heated moist air, or by dipping in hot water. The aqueous dispersion employed may include natural latices, artificial dispersion of rubber &c., artificial dispersion of waste, reclaim, rubber substitutes such as faktis &c., or mixture of these, and additional substances such as cellulose esters may be incorporated into the mix. If the mould on which the product is formed is porous, it is preferably fitted with a tight-fitting cover and a tube projecting out of the water to which suction may be applied to allow the gases to escape. In an example, a mixture of 100 parts latex, 1.25 parts sulphur, 3 parts zinc stearate, 1 part zinc oxide, 0,5 parts aldol-alpha-naphthylamine, 0.2 parts colour, and 0.5 parts diethylamine diethyl dithiocarbamate is electrophoretically deposited on porous clay moulds, the product being dried for half an hour at a temperature of 80‹ C.
Patent GB-357257-A (GB)
Title: Improvements in or relating to reflectors for lighting and heating
IPC: F21V7/22
Filed: 1931-05-11
Abstract: In the manufacture of a reflector for light or heat prepared by firing on to a fusible enamel or like surface on a base a metal or alloy applied in powdered or other form, the fusible surface has a p hue similar to or the same as that of the metal or alloy or is of such a colour, e.g. white, which if necessary masks the colour of the base but does not adversely affect the colour of the reflected light. The metal or alloy used is selected according to the desired colour of the reflected light, and, when necessary the enamel is coloured by the addition of a pigment.  The base is coated with enamel, and the metal, in finely powdered form and suspended in a vehicle such as oil of lavender is applied, the article being then dried and fired so that the metal powder is absorbed into the enamel; alternatively, the metal and vehicle may be melted and sprayed on to the surface, or applied as foil.  The surface of the reflector may be coated in varying degrees so as to produce different reflective properties. The surface of the reflector may be formed as in Specification 252,880, [Class 75 (ii), Lamp chimneys &c.].
Patent GB-285272-A (GB)
Title: An improved duster or cloth holder or mop device
IPC: A47L13/46
Filed: 1927-03-29
Abstract: 285,272. Hobden, W. E. G. Hudson-. March 29, 1927. Handles with clamping- devices for mops; fixing by sockets of special forms. - A device for securing a mop, duster, cloth &c. to a handle comprises two clamping bars a, b, the former fixed to the handle d and the latter guided thereon and having rearward extensions b' pivoted at b<2> to ears e<1> on a clamping lever e the forward end e<2> of which is bent round a convolution of a spring f coiled round the handle and secured at g to the clamping bar a. The latter is formed of sheet metal with a recurved forward edge a<1> and is provided with a socket c for the handle d by slitting and bending the metal in opposite directions; the metal may be pressed up to form an end cap for the handle. The forward edge of the clamping bar a is formed with slots or recesses to receive projections b<3> on the bar b.
Patent GB-489997-A (GB)
Title: An improved lubricant feeding apparatus for internal combustion engines
IPC: F16N29/02
Filed: 1938-03-21
Abstract: 489,997. Lubricating. CLEMENTSON, C. M., and CLEMENTSON, S. O. H., (trading as CLEMENTSON, C. & S.). March 21, 1938, No. 8682. Convention date, Nov. 5, 1937. [Class 12 (iii)] A predetermined quantity of lubricating oil is supplied to the cylinders and pistons of internal-combustion engines, when starting the same in the cold condition, from a measuring container 4 which is connected by a duct 2 to a lubricant reservoir 1 and by a pipe 16 to the engine intake manifold 17. Valve plates 13, 14, fixed on a rod 12, control the oil inlet and outlet to and from the container 4. Normally the duct 2 is open and the pipe 16 closed. When the engine is started up from the cold state the valve rod 12 is lifted by any force or power generated or liberated when starting the engine, e.g. by oil pressure, by vacuum or pressure in the pipings, or by compressed air. As shown the rod 12 is lifted by a lever 11 connected to a movable core 10 of a solenoid 9 arranged in parallel with the ignition or self-starting circuit 8. The solenoid circuit includes a switch 26, 27 which is broken by a heat sensitive device 23, when the engine has warmed up. The valve rod 12 then descends under the action of a spring 28 so that the container is recharged. If the engine is started up whilst it is still warm the valve rod 12 will not be actuated due to the switch 26, 27 being broken.
Patent GB-875974-A (GB)
Title: An improved electrode plate, a method for the manufacture thereof and an apparatus for carrying out the method
IPC: H01M4/22
Filed: 1960-03-11
Abstract: 875,974. Electric batteries. BOLIDEN BATTERI A.B. March 11, 1960 [Jan. 14, 1960], No. 8726/60. Drawings to Specification. Class 53. A negative plate for a lead acid accumulator is impregnated with a protective agent (e.g. paraffin) to prevent deterioration when stored in the dry state. The concentration of the protective agent increases from the major axis towards the outside. Apparatus for drying the formed plate and then impregnating it is disclosed.
Patent GB-928387-A (GB)
Title: Apparatus for screening moist or sticky feeds
IPC: B07B1/60
Filed: 1962-03-07
Abstract: 928,387. Screening moist feeds. METALLGESELLSCHAFT A.G. March 7, 1962 [May 30 1961], No. 8822/62. Class 117. Screening apparatus for screening moist feeds comprises an inclined reciprocatory screen 8, a collecting shoot 7 located below the screen, sealing flaps 13 e.g. of asbestos, connecting the screen with the shoot, a distributer 6 for admitting hot gases into the shoot below the screen surface 9, an exhaust flue 11 for the gases, with its entry located below the screen surface 9 and adjacent the higher end of the screen, and a hopper 14 for introducing the feed at the higher end of the screen. Blast furnace gas is mixed with air and burnt in a combustion chamber (not shown) and the resultant hot gases, which may be partially cooled by admixture with air are fed through a pipe 5 to the distributer 6 which has slits 10 opening into the shoot 7. Alternatively the combustion chamber may be replaced by a heat exchanger. The hot gases heat the feed and prevent choking of the screen. Fines passing through the screen fall through the shoot 7 on to a conveyer 12, whilst material leaving the lower end of the screen is removed by a further conveyer. Fines collecting on the distributer 6 protect it from mechanical wear.
Patent GB-854945-A (GB)
Title: Improvements in and relating to testing tools
IPC: H01R43/26
Filed: 1959-03-13
Abstract: 854,945. Assembling force-fits. AMP Inc. March 13, 1959 [March 27, 1958], No. 8826/59. Class 83 (4). A tool for inserting an object, e.g. a taper pin, into a receptacle and then applying a test withdrawal force to the object, comprises a body and a member slidable with respect to the body for engaging the object and a spring detent for maintaining the member in a given position with respect to the body until the force between the body and the member is the test force. The taper pin 2 is crimped to an electrical conductor 10. The tool includes a spring-loaded rod 14 having a longitudinal recess 16 for receiving the crimped portion of the taper pin. The conductor 10 lies in an enlarged recess 18 in the rod. The tool body 26 accommodates the rod and also houses an impact hammer 66. A coil spring 36 surrounding the rod engages a collar 30 which forms a ball-race with a bushing 42. A bevelled surface 38 on the ball-race urges the ball bearings into an annular recess 48 in the rod. A latch 52 locks the taper pin in the recess 16, and an ear 56 on the latch extends into a radial slot in the collar 30. The hammer 66 and the body 26 have a slot 69 through which passes a pin 70 mounted in an outer handle 72. The hammer is operated by a spring 84. A second spring 78 urges the body 26 out of the handle 72. A spring-loaded detent 90 in the hammer engages in a cam groove 96 in the handle 72 so that the detent releases the hammer when the handle is moved towards the pin to insert it in the receptacle. After the hammer has delivered its blow the pin is still engaged by the rod. Removal of the pin from the recess 16 is effected by pulling on the handle 72 whereupon a withdrawal test force is applied before the pin disengages from the tool. On reaching the test force the ballbearings 46 are forced out of the groove 48 in the rod to allow the latch and the body to slide relatively to the rod, thus releasing the pin from the recess 16. The test force is predetermined by adjustment of a nut 32 which tensions the spring 36.
Patent GB-1489247-A (GB)
Title: Organophosphonic acid esters and their partial and complete hydrolysates
IPC: C09D5/08
Filed: 1974-08-30
Abstract: 1489247 Phosphonate esters and their hydrolysates DYNAMIT NOBEL AG 30 Aug 1974 [1 Sept 1973] 08890/77 Divided out of 1489241 Heading C2P The invention comprises phosphonate esters of the formulµ wherein R<SP>1</SP> is a C 1 -C 12  alkyl group optionally interrupted by one or more hetero atoms or radicals and optionally containing one or more halogen substituents, and the partial or complete hydrolysates of said esters. The esters may be obtained by appropriate methods described in parent Specification 1,489,241. The products are useful for increasing the resistance to corrosion of metal surfaces and for improving the adhesion of organic materials to metal surfaces.
Patent GB-116889-A (GB)
Title: Improvements in or relating to Supporting Means for Electrical Conductors.
Inventor: JOUBERT LUCIEN
IPC: H02G7/20
Filed: 1918-06-01
Abstract: 116,889. Joubert, L. June 4, 1917, [Convention date]. Conduits; supporting.-Branches from electric lines are led into buildings through tubes or brackets a supporting the insulator arms. The tubes are covered internally and externally with insulating material and bent at the outer or upper ends to prevent the entrance of rain &c. Fig. 5 shows a modified arrangement for a vertical tube taking three or more conductors. A cap g is mounted on the end of the tube and formed with holes which are screened from the weather.
Patent GB-901598-A (GB)
Title: Improved card index
IPC: B42F17/00
Filed: 1960-03-15
Abstract: 901,598. Card indexes. NEILSEN, H. L. March 15, 1960 [March 20, 1959], No. 9121/60. Class 146 (1). A card index comprises a base member 10 having arcuate rails 20 and end coverplates 36 pivoted to the side walls 14 of the base by means of lugs 40 extending through slots in the top porton 12 of the base. The pivotal mountings of the end plates are sufficiently tight or provided with friction washers whereby the end plates remain in the closed position, in which they extend parallel to each other, to hold the cards in a tight pack. Two pairs of lugs 54, 56 cut and bent down from the top portion 12 are each adapted to receive a U-shaped member 44 of resilient wire, whereby the card index may be tilted about the edge 16 or side 14, with the cards movable towards or away from the user, or from side to side, respectively. The record cards 24 and index cards 26 are provided with T-shaped filing slots to engage the rails, the latter comprising flat strips of metal of rectangular cross-section. The end cover-plates are slotted along their lower edges to avoid interference between the latter and the rails.
Patent GB-174541-A (GB)
Title: Improvements in pumps
IPC: B60C23/14
Filed: 1921-03-24
Abstract: 174,541. Govean, A. March 24, 1921. Connecting-rods. - In a multicylinder compressor for inflating pneumatic tyres the connecting rods are made with crutch ends, Fig. 3, held on the crank pin by two-part collars 14 with interlocking ends. One such part is shown in Fig. 4.
Patent GB-328743-A (GB)
Title: Improvements in the manufacture and production of calcium cyanamide or products containing the same
IPC: C01C3/18
Filed: 1929-03-21
Abstract: 328,743. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 21, 1929. Calcium cyanamide is prepared by heating to 650-900‹ C. calcium carbamate under conditions which enable the gases and vapours formed to be removed rapidly. The carbamate may be heated under reduced pressure, or in presence of gases which are inert or exercise a favorable influence such as ammonia, carbon monoxide, nitrogen, &c. The gases may be passed in a cycle and' water vapour and carbon! dioxide which are formed by the reaction be removed outside the reaction vessel. The gases may contain small amounts of sulphuretted hydrogen or other gases which render innocuous impurities such as iron contained in the carbamate. The carbamate may be prepared by the processes described in Specifications 328,005; and 332,584, [Class 1 (iii), Oxides &c., Metallic].
Patent GB-308724-A (GB)
Title: Improvements in and relating to breech actions for gas-operated automatic fire arms
IPC: F41A3/32
Filed: 1929-03-21
Abstract: 308,724. Ceskoslovenska Zbrojovka Akciova Spolecnost v. Brne. March 27, 1928, [Convention date]. Machine guns.-Relates to gas-operated guns in which the breech-block is tilted by the gas piston to unlock it before retracting it to open the breech, and consists mainly in the interposition of a spring buffer to smooth the tilting operation. As shown, the member 20, which operates the breechblock 6, is slidably mounted in the head 5 of the gas-piston rod and is normally held back against a stop 5<1> by a spring 21. When a shot is fired, the piston head 5 and the member 20 are moved rearwards, and the inclined surface 25 on the member 20 engages an inclined surface 26 on the breech-block, but the shock of this engagement is cushioned by the spring 21. The rear end of the breech-block is thus deflected downwards to remove a lug 16 of the breech-block from its locking engagement in a recess 18 in the breech casing 2, after which the parts recoil against a spring 7 and the spent cartridge is extracted from the barrel by an extractor 14. When the parts are returned forwards by the spring 7, an inclined surface 36<11> on the piston-rod head 5 comes against an inclined surface 35 at the end of the breechblock, which is thereby again tilted up to the locking position where it is held by the curved surface 36<1> on the piston-rod head 5. After this, the member 20 strikes the firing pin 10 in the breech-block, and the next shot is fired.
Patent GB-564892-A (GB)
Title: Improvements in or relating to swivelling pipe couplings
IPC: F16L27/12
Filed: 1942-07-03
Abstract: 564,892. Pipe couplings. PACKLESS METAL PRODUCTS CORPORATION. July 3, 1942, No. 9226. Convention date, Aug. 27, 1941. [Class 99 (i)] A swivel coupling comprises a coupling member 10 having a plurality of thinwalled cylindrical extensions 16, 17 which overlap rigid surfaces 18, 19 on the coupling member 11 and are forced into contact therewith by wedge rings 38 under the action of springs 40. The thinwalled sleeves are initially of slightly larger diameter than the sockets into which they fit. An intermediate member having self-lubricating properties may be inserted between the rigid and resilient surfaces. Specification 292,387, [Class 99 (i)], is referred to.