baber/WOPTO huggingface dataset:
Patent GB-759408-A (GB)
Title: Improvements in or relating to magnetic recording or reproducing apparatus
Inventor: DRISCOLL JOHN WILLIAM
Filed: 1954-04-09
Abstract: 759,408. Magnetic recording or reproducing apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 7, 1955 [April 9, 1954], No. 10438/54. Class 40(2) A magnetic recording or reproducing aparatus of the type including at least one magnetic transducing head 1 comprising a magnetic core 3 provided with a narrow gap 4 across a record medium such as a tape 5 is moved, has the head or a member on which the head is mounted adjustably supported by a pair of spaced bearing surfaces 36 each of which forms a portion of a spherical surface, the head or member having means engaging the surfaces 36 whereby the head is capable of pivotal movement to vary the angular disposition of the gap 4. As shown, the head is contained in a screening can 2 and is mounted on a plate 7 in turn secured to a plate 15 having on one side of a vertical plane containing the gap 4 two apertures, one of which is elongated, to engage the corresponding surfaces 36, and on the other side of the plane an aperture engaged with clearance by a bolt 45 threaded into a self-locking nut 37 fixed to a plate 30 to which studs 31, 32 having the surfaces 36 are fixed and by rotation of which bolt 45 the pivotal adjustment is effected. Coil compression springs 39, 40 load the apertures in plate 15 and surfaces 36 into engagement and a similar spring 47 loads the plate 15 into engagement with the head of bolt 45. Riveted to the plate 15 is a strip of electrically insulating material 48 to which a pair of terminals 49, 50 is secured to receive lead wires (not shown) from the head. The plate 7 has elongated holes (not shown) for the fixing of the head and to permit backwards, forwards and also angular adjustment of the head in the plane of the plate 7. Instead of the plate 15 the surfaces 36 may be engaged by members secured to or integral with the screening can 2.
Patent GB-1354473-A (GB)
Title: Test device for alcohol
IPC: G01N33/52
Filed: 1970-03-04
Abstract: 1354473 Gas analysis JENAPHARM VEB 1 June 1971 [4 March 1970 19 Aug 1970] 10442/70 and 39891/70 Heading G1B Apparatus for the quantitative determination of the alcohol content of respiratory air comprises a calibrated transparent tube containing a filling of a non-porous material to which has been applied a fine-grained porous material and absorbed potassium bichromate - sulphuric acid reagent, the tube being provided with a calibrated scale for the determination, by colour change indications of the filling, of the amount of alcohol contained in the respiratory air. The tube may also contain a water indicating layer or be attachable to a measuring bag for indicating the amount of air passed through the tube. The non-porous material which may comprise particles of a diameter between 0À25 and 1À00 mm comprises glass, quartz or resin (P.T.F.E.), and the porous material, which may be adhered to the non-porous material by waterglass, comprises silica gel dust, aluminium oxide or zeolites preferably having a particle size less than 0À1 mm.
Patent GB-1300252-A (GB)
Title: Improvements in or relating to process for fluxing and brazing parts made of aluminium or aluminium alloy
IPC: B23K3/06
Filed: 1970-03-04
Abstract: 1300252 Brazing SOC ANON DES USINES CHAUSSON 4 March 1970 [5 March 1969 12 Sept 1969] 10499/70 Heading B3R [Also in Divisions B2 and C7] A process for brazing aluminium or aluminium alloy parts, comprises applying to the parts a thin coating of flux consisting of anhydrous chlorides and metallic fluorides, the coating being applied by hot-spraying the flux substantially at its melting temperature on to the portions to be brazed which are maintained at ambient temperature and immediately thereafter heating the components to brazing temperature, brazing alloy being present at the surfaces. Particular aluminium and brazing alloys referred to are an aluminium-silicon alloy containing 2-13% silicon. A particular flux composition given includes: 30 parts by weight lithium chloride, 35 parts sodium chloride, 40 parts potassium chloride, 6 parts zinc chloride, 12 parts cryolite, 9 parts aluminium fluoride. Strontium chloride is also referred to as possibly being used in a flux. To prepare flux the constituents are mixed, melted, allowed to cool and solidify, ground and sifted to give a particle size in the range 25-150Á. This anhydrous powdered flux may be applied by a spray-type burner or hot gas nozzle, by plasma spray gun or by centrifugal means, the nozzle and part to be coated being preferably held at different electrostatic potentials to ensure efficient coating. Brazing alloy may be applied to the surfaces to be brazed prior to the flux coating step or may be applied in powder form (particle size 150 Á) together therewith. Alternatively a wire of brazing alloy may be fed to a spray gun and powder flux applied simultaneously with the molten spray of brazing alloy. Brazing may be effected by heating in an oven or by immersion in a molten salt bath. The parts to be brazed may be prepared by cleaning, pickling and rinsing operations including immersion in a degreasing bath and one or more acid or alkaline pickling baths.
Patent GB-1135517-A (GB)
Title: Fluid control device
IPC: G05D7/01
Filed: 1967-03-06
Abstract: 1,135,517. Pure fluid amplifiers. BENDIX CORP. March 6, 1967 [April 4, 1966], No. 10508/67. Heading G3H. A pneumatic amplifier having a vortex chamber 30 producing a jet 36 which is applied to a receiver 40 connected to a load 64, is characterised in that a counter flow is induced in receiver 40 and a vented chamber 42 surrounds said receiver. The Specification states that the invention provides high gain and "low noise level" by stabilizing jet 36. As shown in Fig. the main supply P.S. is applied radially to chamber 30 from a constant pressure source 25, the vortex is controlled by variable pressure P.C. applied tangentially from a source 50, and the counter flow is bled from chamber 30 through an orifice 50 and is controlled by a valve 56. In a modification Fig. la (not shown) a separate pressure source provides the counter flow. In a further modification Fig. (not shown) the pressure source P.C. is dispensed with, the vortex is controlled by bodily rotation of the chamber, and a bias pressure is applied tangentially to the chamber to produce sensitive operation over points H-G on curve P.O. Fig. (not shown) whereby the device may be used as a rotation rate sensor.
Patent GB-385308-A (GB)
Title: Improvements in, or relating to, plaster-excluding devices for use in electrical wall-boxes
IPC: H02G3/12
Filed: 1931-06-13
Abstract: 385,308. Switch bases ; plug couplings. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. June 13, 1931, No. 10564/32. Divided on 385,298. [Class 38 (v).] A combined plaster excluder and supporting member for a unitcarrying plate in a wall box comprises a rectangular frame a of strip or sheet metal having attached to it lugs b for carrying the unit plate. The lugs b are struck up in pairs at opposite ends of strips b<2> which are then welded to the frame a one of the strips b<2> serving as a bond for the joint a<1> of the frame. The lugs b are provided with clearance holes bl to allow of adjusting the attachment devices in situ as described in Specification 385,298. Specification 385,309 also is referred to.
Patent GB-1000074-A (GB)
Title: Cold separation of tertiary gas mixtures
IPC: F25J3/04
Filed: 1964-03-12
Abstract: 1,000,074. Cold separation of air. LA FLEUR CORPORATION. March 12, 1964 [April 18, 1963], No. 10575/64. Heading F4P. Precooled compressed air is separated into nitrogen, oxygen and argon by expanding it at a valve 29 to just above atmospheric pressure into a rectification column 18, withdrawing product liquid oxygen from the base thereof, withdrawing an overhead gaseous mixture of nitrogen and argon through a duct 38 and passing it to a column 19 from the base of which product liquid argon is withdrawn through a duct 41 and from the head of which product gaseous nitrogen is drawn through a duct 46: the head of each column 18, 19 being cooled by passage of an external refrigerant, e,g. hydrogen or helium traversing condenser coils 34, 42, in series. The base of each column is heated by feed air traversing coils 26, 27. Preliminary cooling is effected in exchangers 16, 17 cooled by separated nitrogen.
Patent GB-1345014-A (GB)
Title: Thiazolo-3,4-a-benzimidazole derivatives
IPC: C07D513/14
Filed: 1971-04-21
Abstract: 1345014 Fused-ring derivatives of 2-imino- and 2-oxo-thiazolidine E R SQUIBB & SONS Inc 21 April 1971 [4 May 1970] 10575/71 Heading C2C The invention comprises compounds of formula wherein R is H, C 1-7  alkyl or alkoxy, aryl-(C 1-7  alkyl), aryl, (C 1-7  alkyl) aryl, OH, halo, NO 2 , NH 2  (possibly substituted), CN, SCN or SH; R<SP>1</SP> is H, C 1-7  alkyl, aryl, aryl-(C 1-7  alkyl) or (C 1-7  alkyl) aryl; X is NH or O and n is 1 or 2. The imines are prepared by heating the correspondingly substituted 2-(thiocyanatomethyl) benzimidazole (II); the ketones are prepared by mixing the imines with an aqueous inorganic acid. II may be formed in situ from a 2-(halomethyl) benzimidazole and MSCN, where M is NH 4  or an alkali or alkaline earth metal. Veterinary compositions comprise compounds of the above formula which have anti-inflammatory and parasiticidal activity. In the former case they may be administered as a suspension, ointment or cream, and in the latter case as a feedstuff ingredient. The compounds also have rodenticidal activity.
Patent GB-953256-A (GB)
Title: Vapourization of combustible liquids of low volatility
IPC: F23C99/00
Filed: 1962-03-20
Abstract: 953,256. Vapour burners. M. E. J. CATHALA. March 20, 1962 [Dec. 14, 1961], No. 10622/62. Heading F4T. A vaporizing apparatus for liquids of low volatility comprises a refractory casing 1 which holds a vessel 2 having a perforated bottom 2<SP>1</SP>, a liquid filling inlet 4, inlet means 6 for air and/or oxygen, and means for directing the air to the bottom of the vessel. The latter is separated from the casing wall by one or more baffle walls 5, forming passages 5<SP>1</SP> through which hot air from the inlet 6 passes to the vessel bottom 2<SP>1</SP> and bubbles up through the liquid which is filled to a level " h." A metal dome in the casing 1 has axial convergent and divergent passages 10, 11 connected by a cylindrical passage. An inlet 8 in the casing supplies air to apertures 9 for combustion with liquid saturated vapour above the liquid. A further inlet 13 supplies air to the cylindrical passage in the cover 7 for final combustion with the vapour.
Patent GB-824027-A (GB)
Title: Improvements in or relating to spring suspensions for railway cars
Inventor: HIRST ARCHIE JOHN
IPC: B61F5/10
Filed: 1957-04-01
Abstract: 824,027. Vehicle suspensions. METALASTIC Ltd. March 17, 1958 [April 1, 1957], No. 10623/57. Class 103(6) A railway car suspension comprises partly evacuated, expansion chambers 10 formed of conical parts 11, the centres of which are secured to links 12, 13 of which link 12 is pivotally attached to a transom 9 and link 13 to a bolster 7 of the bogie frame by part-spherical rubber joints 14. A rubber ring 15 is secured at 16 to the marginal edge of plates 11 and at 17 to an encircling spacer ring 18. The chambers are connected to a vacuum pump or to the vacuum brake system (not shown), if the car is provided therewith, so that atmospheric pressure acts upon the partly evacuated chambers to support the body 5. The assembly comprising links 12, 13 and plates 11 constitutes a swing link to accommodate transverse movement of the body 5 and also longitudinal movement of the body when rounding curves. Rubber blocks 19 with metal interleaves 20 are provided between a frame 8 carried from the body 5 and the transom 9 to limit longitudinal tractive and braking forces, and transverse movements are limited by stop plates 21 engaging rubber blocks 22 carried by the transom 9. To support the body 5 when the vacuum system is disconnected side bearers 23 come into contact with rollers 24 carried by the transom 9. The vacuum system may be adapted to operate when a predetermined pressure has been reached in the brake system or when the body 5 descends below a predetermined height.
Patent GB-199867-A (GB)
Title: Improvements in or relating to the protection of seeds and crops from the attacks ofinsects and birds
IPC: A01M29/20
Filed: 1922-04-27
Abstract: 199,867. Ross, J. Smith-. April 27, 1922. Drawings to Specification. Detonating signals.-An apparatus for protecting seeds and crops from insects comprises a moving cage carried round a horizontal rectangular path by a wire which passes round pulleys on four posts. When the apparatus is used for scaring birds detonating caps are automatically struck at intervals either by clockwork or by a projection on the cage engaging the posts.
Patent GB-855119-A (GB)
Title: Improvements in bandages or catamenial devices
IPC: A61F13/20
Filed: 1957-04-02
Abstract: 855,119. Catamenial bandages and tampons. KIMBERLEY - CLARK CORPORATION. April 2, 1957 [April 9, 1956], No. 10747/57. Class 81(2) An absorbent bandage for catamenial use comprises two or more absorbent pads enclosed in a wrapper, the bandage being formed by laying the pads side by side on wrapper material and folding the pads and wrapper so that the pads are superposed with the wrapper extending across adjacent edges of the pads along one side of the bandage. Two elongated pads 14a, 14b consisting of cotton linters and crimped viscose rayon staple fibres or woodpulp, nylon and cotton fibres are laid on a gauze wrapper 15 with their ends spaced from one another. Marginal side portions 16, 17 of the wrapper are folded over the pads, the end marginal portions of the wrapper being adjusted so that the width of the wrapper beyond the pads is substantially uniform. The marginal end portions 19, 20 of the wrapper are then folded over the ends of the pads and the wrapper between the pads is then folded to superimpose the pads with folded marginal portions of the wrapper disposed between them. To make an alternative construction, strips A, B, of fibre batting are fed on to a gauze wrapper web C, the strips being severed at intervals to form pads 1a, 1b, and the space between pairs of pads being greater than the space between the pads of each pair. The web C is conveyed between ploughs 32, 33 which fold the web C over the ends of the pads. The web C is then severed adjacent one pad 1b of each pair to form a wrapper 2 leaving a web portion 5 on the other side of the other pad la. The wrappers 2 each carrying a pair of pads are conveyed at right angles to their original direction to meet a second plough 36 which superimposes one pad 1b and its contiguous wrapper portion on the other pad 1a. A third plough 37 folds the extending web portion 5 over the two pads so that it overlaps the wrapper causing the upper pad 1b to form a tampar. A drawstring 10 is fixed through one end of both pads and the wrapper by a noose knot. The tampon may then be compressed longitudinally and transversely by compression dies 39, 40 and plungers 41, 42 a depression being formed at one end for the insertion of an applicator stick. Adhesive may be painted on the wrapper for securing it when folded.
Patent GB-932398-A (GB)
Title: Improvements in or relating to vapour turbine plant
IPC: F22D1/36
Filed: 1960-03-25
Abstract: 932,398. Turbine power-plant. BABCOCK & WILCOX Ltd. (Soc. Francaise des Constructions Babcock & Wilcox.). March 25, 1960, No. 10757/60. Class 122 (3). In a condensing steam-turbine plant in which the combustion air for the steam generator (not shown) is heated in a flue-gas air heater 20 and the condensate returned from the turbine condenser 4 to the generator is heated by steam bled from the turbine, the air is preheated before entering the air heater 20 in an air preheater 22 by heated condensate supplied at a variable rate. The turbine comprises high and low pressure stages 1 and 2 respectively with an intermediate reheater 3 and the condensate is pumped by a pump 5 through feed water heaters 7, 8 and 9 where it is heated by steam bled from the turbine through lines 10, 11 and 12 respectively. Combustion air for the steam generator is preheated in the preheater 22 by condensate circulated through a conduit 26 from a point 23 between the heaters 7 and 8 to a point 24 between the pump 5 and the condenser 4. The air is then further heated by combustion gases in the air heater 20. Some of the condensate flowing in the conduit 26 is pumped by a pump 29 through an economizer 30 and returned to the generator through a further economizer 21, the economizer 21 being heated by combustion gases before they enter the air heater 20 and the economizer 30 by gases by-passing the heater. In operation, the amount of condensate withdrawn at 23 is such as to ensure that the temperature of air entering the air heater 20 is sufficient not to cool the combustion gases therein below their dew point. In a modification, Fig. 2 (not shown), the condensate flowing between the heaters 8 and 9 and also that flowing through the economizer 30 passes through a de-aerator.
Patent GB-138512-A (GB)
Title: Improvements in and relating to extensible ladders
IPC: E06C1/32
Filed: 1919-05-01
Abstract: 138,512. Zerlini, A. May 1, 1919. Ladders.-In a ladder of the kind having two sections adapted to form an extensible or self-supporting ladder, one section 5 slides within the sides 3 of the other, projections 8 engaging grooves 7. A rotatable shaft 12 with arms 13 is carried by supports 11 on the side members 3, the arms 13 being adapted to rest on the top rung 4 and to support a rung 6 when the ladders are extended. To make a self-supporting ladder, the section 5 is connected to the bar 12 by hinge slots 19 and a sliding locking-rod 21. The shaft 12 can be rotated by a sliding rod 14, a slot 17 in which engages an arm 18 extending from the shaft. The rod 14 is mounted on the side 3 by headed nails and slots 16.
Patent GB-573947-A (GB)
Title: Improvements in or relating to apparatus for damping the sound from pulsating streams of gas
IPC: F02M35/12
Filed: 1944-06-07
Abstract: 573,947. Silencers. SULZER FRERES SOC. ANON. June 7, 1944, No. 10918. Convention date, June 12, 1943. [Class 7 (ii)] Apparatus for damping the sound from pulsating streams of gas consists of single throttling elements 4, 5 and 6, in the form of nozzles combined to make up sound-damping bodies having honeycomb form as shown and of the required size. The elements may be made of light metal and have elongated mouths and may be arranged with the mouths.extending horizontally, vertically or obliquely. In addition, the lip or edge 25. of the inlet of each of the elements may be shaped so as to form a flange which serves for the purpose of attaching the element to the part in which it is mounted. The invention is shown applied to the intake of an internal-combustion engine 1 with a compressor 7.
Patent GB-1400127-A (GB)
Title: Image projection apparatus
IPC: G03B21/11
Filed: 1973-03-07
Abstract: 1400127 Image projection apparatus EASTMAN KODAK CO 7 March 1973 [7 March 1972] 10967/73 Heading G2J In an image projection apparatus in which the carriage supporting the image-bearing medium is prevented from being withdrawn from the apparatus by engagement with part of the lens assembly, the lens assembly can be tilted out of engagement with the carriage so as to allow such withdrawal. The apparatus shown is a microfilm reader for projecting images on a micro-fiche 16 on to a screen. The fiche is supported on a carriage 20 which can be moved in the direction of arrows 22 and 26, the fiche being covered by a transparent plate 30. The projection lens is mounted in a lens barrel 48 which has a pair of pins, as at 54, and the arms of a U-shaped spring 66 bear against the pins so as to bias the lens barrel downwards into contact with the plate 30. The inner end of the carriage 20 has a stop means comprising a wall 42 having a bevelled rear surface 44 and a vertical front surface 46 When the lens barrel is in contact with sheet 30 the carriage 20 cannot be withdrawn, since a vertical surface 92 of the lens barrel engages with vertical surface 46 of the stop means and prevents such withdrawal. A focusing lever 80 has at one end a knob 82 projecting through a slot 84 in the apparatus, and its other end is linked to the lens barrel by a cam and groove arrangement, so that as knob 82 is moved through the range 86 the lens barrel is moved axially to adjust the focus. When knob 82 is moved to an extreme downward position it engages against a member 90 which causes the lens barrel to tilt. This brings surface 92 clear of surface 46, so allowing the carriage to be withdrawn. To re-insert the carriage, a bevelled surface 94 on the lens barrel rides over the bevelled surface 44 of the stop means until the barrel once more rests on plate 30.
Patent GB-1411302-A (GB)
Title: Polyolefins stabilized with organic hydrazine compounds and phenolic antioxidants
IPC: C08L23/00
Filed: 1973-03-07
Abstract: 1411302 Stabilizing polyolefins CIBAGEIGY AG 7 March 1973 [8 March 1972] 11033/73 Heading C3P Olefin polymers are stabilized with (1) 0.01 to 5 weight per cent of an organic hydrazine compound of formula wherein R 1  is C 1-5  alkyl, R 2  is H or C 1-5  alkyl, n is 0 to 5, R 3  is H, C 2-18  alkanoyl, or an aroyl group of formula wherein R 4  and R 5  are H, C 1-18  alkyl, C 1-18  alkoxy or halogen; and (2) 0.01 to 5 weight per cent of a phenolic antioxidant containing no hydrazine grouping. The polyolefin may be a polyethylene or polypropylene, or a copolymer of ethylene with butene, hexene, octene or dodecene. The compositions may contain conventional additives, e.g. dilauryl and distearylthiodipropionates, phosphites and carbon black. Many suitable hydrazine compounds and antioxidants are specified and examples describe compositions comprising pentaerythritol tetrakis - [3 - (3<SP>1</SP>,5<SP>1</SP> - di - t - butyl - 4<SP>1</SP> - hydroxyphenyl) propionate] together with propylene/ethylene copolymer and (3) N,N<SP>1</SP>-bis-#-(3,5-di-t-butyl-4- hydroxyphenyl)propionyl hydrazine and (4) N - benzoyl - N<SP>1</SP> - [# - (3,5 - di - t - butyl - 4- hydroxyphenyl)propionyl]hydrazine; with bis- 3,5 - di - t - butyl - 4 - hydroxyphenylpropionyl hydrazine and (7 and 8) polyethylene and (10) polypropylene; and compositions comprising ethylene/hexene-1copolymer, N-[#-(3-ethyl- 5 - t - butyl - 4 - hydroxyphenyl)propionyl] - N<SP>1</SP>- [# - (3,5 - di - t - butyl - 4 - hydroxyphenyl)- propionyl]hydrazine and either thiodiethylene glycol bis - (3,5 - di - t - butyl - 4 - hydroxyphenyl)propionate or trimethylolpropane tris 3,5 - di - t - butyl - 4 - hydroxy - phenylpropionate.
Patent GB-385504-A (GB)
Title: Means for ejecting cartridges or cartridge cases from magazine fire-arms, having rectilinear breech block movement
IPC: F41A15/16
Filed: 1932-04-18
Abstract: 385,504. Cartridge ejectors for firearms. GEBAUER, F. and DANUVIA IPARI ES KERESKEDELMI RESZVENYTARSASAG, 11, K÷ver Lajos Utca, Budapest. April 18, 1932, No. 11109. [Classes 92 (ii) and 119.] The extracted cartridge case or cartridge x is moved transversely by a twoarmed ejector lever 3 into a laterally closed tubular channel y and ejected forwardly by the projection 5 on the breechbolt 2 during its closing movement. The range of movement of the arm 6 of the ejector and its shape are such that it serves to retain the cartridge case in the channel y and leave clear a space above the magazine 9 for loading it from above.