baber/WOPTO huggingface dataset:
Patent GB-627887-A (GB)
Title: Improvements in or relating to piston packing
IPC: F16J15/32
Filed: 1947-02-14
Abstract: 627,887. Piston packing. DICK, B. Feb. 14, 1947, No. 4389. [Class 122 (i)] In a packing for a piston and cylinder combination a cup 16 of yieldable material has a base 17, which engages a pistonhead 10, and an annular lip portion 18, which in its normal moulded position flares outwardly from the base 17 and has a greater diameter than the cylinder bore for which it is intended, the lip portion having a narrow peripheral surface 22 between its ends for engagement with a cylinder wall 11. The lip portion 18 is pressed against the piston head by a spring 32 and a retainer 24 which fits in the cup and has a guide portion 25 in the cylinder. In an alternative arrangement the retainer 24 and spring 32 are omitted and the base of the cup 16 is flat and abuts the piston head 10.
Patent GB-828290-A (GB)
Title: Improvements in and relating to wristwatch straps or bands
IPC: F16B35/02
Filed: 1958-02-11
Abstract: 828,290. Watch bracelets. SIMON, J. J. F. Feb. 11, 1958 [Feb. 15, 1957], No. 4426/58. Class, 43 [Also in Group XXV] A wrist watch strap 1 has internally screw threaded end portion 2 into ends of which screw two half threads 7 on the ends of a loop 5 which passes through the watch case lug. The loop and strap may be made of plastic material and the entry 4 to the screw thread on the strap may be oval. The screw thread may have a buttress form.
Patent GB-903443-A (GB)
Title: Improvements in or relating to steam generators
Inventor: BENNETT MICHAEL GORDON
IPC: F22B1/08
Filed: 1958-02-11
Abstract: 903,443. Forced-flow steam boilers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 2, 1959 [Feb. 11, 1958], No. 4442/58. Class 123 (2). A steam generator heated by the coolant gas from a nuclear reactor comprises an upright cylindrical pressure-shell 1 within which is coaxially located an open-topped vessel 4, the vessel being suspended by interengaging flanges 7, 8 to leave an annular cavity 11 between the vessel and the pressure shell constituting a cooling . water jacket for the latter. Four headers 12 ... 15 extend into the vessel 4 from the removable end cap 2 of the pressure shell, the headers 13, 14, 15 being placed diametrically opposite the header 12. The latter is divided into upper and lower zones 16, 17 by spaced plates 18, the upper zone being connected with both the headers 13, 15 by sinuous tubes 21 forming the evaporator section 22 of the boiler. The lower zone 17 of the header 12 is connected by sinuous tubes 23 forming the boiler superheater section 24 to upper and lower zones 30, 31 of the header 14. In operation, hot gas enters the vessel 4 through a bottom inlet pipe 36 and flows upwardly through the tube banks to discharge through outlet pipes 40, 41. Feedwater is pumped into the jacket 11 and serves to cool the shell, the water discharging through a pipe 39 to a separator drum (not shown). Water flows from the drum through the headers 13, 15 and tubes 21. The steam-water mixture generated in these tubes enters the zone 16 of the header 12 and returns to the drum whence separated steam flows into the zone 30 of the header 14, through the superheater tubes 23 and the zone 31 of the header to discharge to the point of use through an outlet pipe 27.
Patent GB-600751-A (GB)
Title: Improvements in or relating to processes for vat dyeing
IPC: D06P1/22
Filed: 1945-02-22
Abstract: <PICT:0600751/IV (c)/1> Textile materials are continuously wetted with a dyebath containing a vat dye, a reducing agent and caustic alkali, subjected to the action of an electric current at a voltage between 6 and 120 while passing between iron positive and nickel negative electrodes spaced apart a distance greater than the thickness of the material, and then subjected to oxidation to re-oxidize the reduced dyestuff.  The amount of caustic alkali in the bath may be more than, and the amount of reducing agent less than, the amount used in a conventional dyebath.  Using the apparatus described, the fabric C is passed into the dyebath 101, over the iron positive roller 22, halfway round roller 25, which is preferably made of rubber, and on to and halfway round the negative nickel roller 30. The fabric is then passed to oxidizing and finishing baths in the usual manner.  Apparatus is described in Fig. 6 (not shown) for the treatment of textile material in skein form.
Patent GB-345043-A (GB)
Title: Improvements in photo-electric cells
IPC: H01J40/14
Filed: 1930-02-11
Abstract: 345,043. Photo-electric cells. WESTINGHOUSE LAMP CO., Bloomfield, New Jersey, U.S.A.-(Assignees of Rentschler, H. C. ; 15, Monroe Avenue, East Orange, and Henry, D. E. ; 25, Grace Street, Bloomfield, both in New Jersey, U.S.A.) Feb. 11, 1930, No. 4593. Convention date, Feb. 28, 1929. [Class 39 (i).] Alkali metal such as caesium is introduced into the envelope of a photo-electric cell, an oxidized cathode is heated to effect a reaction between the alkali metal and the cathode, and the excess free alkali metal is fixed as an inert compound by a separate combination with a getter which forms solid stable compounds with the metal. The getter, which may be lead glass, lead oxide, or copper oxide, should be inert, or less active with respect to caesium &c. than is the oxidized surface of the cathode at the reaction temperature of the oxide surface and caesium &c., but should react with caesium &c. at a slightly higher temperature. In the cell shown in Fig. 1, the upper part 7 of the envelope is formed of lime glass and the lower or neck part 8 of lead glass. The cathode 9 consists of a V- or semi-cylindrical plate of silver or of copper plated with silver. The anode 14 consist of a nickel wire. After evacuation, oxygen is admitted at a pressure of 1À6 mms. and a direct current discharge is passed until the cathode is oxidized to a green colour. Oxygen is removed and a pellet 18 containing caesium dichromate and silicon, with or without a small amount of misch metal or aluminium, is heated by high frequency induced current to evolve caesium. Argon may be admitted. The envelope is heated to 125‹ C. for 5 minutes to effect reaction between caesium and oxidized silver, probably with the formation of caesium suboxide. The lead glass portion is heated to 350-400‹ C. for 5-20 minutes to clean up excess caesium, the remainder of the envelope being maintained at 125‹ C. to prevent condensation thereon. If, on testing, the electron emission is low, the envelope is heated again for 3 minutes at 200-250‹ C. In a modification, the envelope is entirely of lime glass and lead oxide is applied to the neck portion. In another cell, a ring of oxidized copper mounted on the stem, is heated bv induced current. In a further arrangement, a capsule containing copper oxide or spongy lead oxide is heated by induced current. As shown in Fig. 5, a coil 25 of oxidized copper, in which a getter may be supported, is connected by conductors 27 with the cathode supports, and is heated by passage of current, one of the cathode supports being provided with an insulating bead 30 to prevent short circuiting of the coil by the cathode. Specification 319,734, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-274749-A (GB)
Title: Improvements relating to systems for protecting electric transformers
IPC: H02H7/045
Filed: 1927-02-18
Abstract: 274,749. British Thomson-Houston Co.. Ltd., Holbrook, H. S., and Mavo, C. G. Feb. 18, 1927. Addition to 176,134. Cut-out arrangements.-In the parent Specification in the protection of transformers against internal faults by the known circulating- current system, compensation for the discrepancy between the input and output of the transformer and for the rush of magnetizing current when the transformer is connected to the mains is provided for by connecting a potential transformer across the primary of the main transformer and connecting the secondary of the potential transformer through a reactance to the secondary of the protective current transformer in the primary of the main transformer. According to the present invention, the potential transformer is dispensed with and a reactor 17 is connected across the primary or secondary of the transformer in series with a winding 15<1> inductively related to the secondary of the current transformer in the same side. In the arrangement shown in Fig. 1, the reactance 17 and winding 15<1> are connected across the secondary of the transformer and the winding 15' is inductively related to the secondary winding 15 of the current transformer in the secondary side of the main transformer. The invention is applicable also to a balanced voltage system.
Patent GB-231119-A (GB)
Title: An improved folding box
IPC: B65D5/20
Filed: 1925-02-19
Abstract: 231,119. Filmer, R. H. Feb. 19, 1925. Folding specially-shaped boxes. - A hexagonal folding box is constituted by a base a folding along a line a<1> and having sides b hinged to it, these sides carrying the four remaining sides b<1>, b<1>, b<2>, b<2>. The bottom also carries four flaps c which when the box is erected are connected to the sides by strings f<1> passed through holes e, f by engagement beneath tabs g, and in some cases by engagement beneath a folded-over rim h, and in other cases by securing a tab c<1> on one flap to the adjacent flap. The sides are further secured by sewing strips i to the sdies, or strips may be inserted within the box and sewn across the meeting edges.
Patent GB-621321-A (GB)
Title: Improvements in or relating to a pouring spout
IPC: B65D81/36
Filed: 1947-02-18
Abstract: 621,321. Stoppers &c. JACKSON, G. M., and JACKSON, E. V:, (trading as McSTAY JACKSON CO.). Feb. 18, 1947, No. 4645. Convention date, Feb. 18, 1946. [Class 125(iii)] An illuminated pouring spout comprises a bottle stopper 10 provided with a pouring passage 16 and illuminating means which become operative when the spout is tilted. A plug member 13 is provided and a flange 15 to encircle the top of the bottle neck. A decorative figure 12 has a tubular compartment 19 in which a U-shaped metal cradle is housed, an electric bulb 24 being screwed in the forward leg 23 of the cradle and a battery 25 positioned in the bight and engaging the rear leg 26. On tilting the spout, the battery 25 slides forwardly in a groove on the cradle and completes the' electric circuit. The cradle may be removed by inserting a key into a C-shaped slot in the rear leg 26.
Patent GB-1062723-A (GB)
Title: Improvements in or relating to door handle assemblies
Inventor: JAMES MICHAEL JOSEPH
IPC: E05B3/06
Filed: 1965-02-04
Abstract: 1,062,723. Door handles. MICRO & PRECISION MOULDINGS (CHELTENHAM) Ltd. Jan. 27, 1966 [Feb. 4, 1965], No. 4844/65. Heading E2A. A door handle assembly has the handle 1 rotatably mounted in a body which is formed for fixing to the door and comprises a hollow main body part 6 which forms a housing for a handle return compression spring 15 of helical form and is closed by an inner closure part 8 of the body, the closure part being apertured to allow the spring to be fitted through the aperture 20 after the latter part has been fitted. In the construction shown the spring 15 lies in an arcuate groove 16 in the handle shank 2 the groove subtending an angle of approximately 310 degrees about the rotational axis of a handle 1. The space between the end walls of the groove is spanned by a narrower arcuate groove 17 with which an arcuate tongue 18 on the closure part 8 engages in the resting position of the handles the tongue exactly spanning the groove. On turning the handle 1 the tongue 18 enters one end of the larger arcuate groove 16 and compresses the spring 15 against the opposite end of the larger groove. The closure part 8 is a press fit into the main body part 6 and has an upstanding castellated shallow side wall, the castellations forming tongues which fit in moulded recesses in the part 6. The handle shank has a projecting radial flange 11 which is cut away over two diametrically opposed portions 13 of its periphery and into these cut away portions 13, two moulded stops 14 of the body part 6 project for engagement with the ends of the cut away portions, to limit handle movement. Both the body and the handle are made of a synthetic plastics material such as nylon. The aperture 20 overlies the groove 16 and is of slightly elongated shape in the direction in which the spring has to be inserted and it is near one end of the spring. The edges 22 of the aperture are chamfered to facilitate insertion of the spring. The position of the aperture is such that when the handle 1 is turned the adjacent end wall of the groove 16 traverses the aperture so that the end of the spring can always be made accessible by turning the handle 1. The handle shank is provided with a central bore 12 of square crosssection for a latch operating shaft.
Patent GB-910661-A (GB)
Title: Improvements in the refining of petroleum products
IPC: C10G19/08
Filed: 1960-02-12
Abstract: Petroleum distillates are refined by a proces comprising (1) extracting the greater part of the mercaptans by means of an alkali metal hydroxide solution containing a catalyst which may be reversibly oxidized and reduced and which is in the reduced state, in the absence of oxygen, (2) separating the hydrocarbon fraction from which the bulk of the mercaptans have been extracted from the alkaline phase enriched with mercaptides, (3) oxidizing the mercaptides to disulphides and the catalyst to the oxidized form with oxygen or an oxygen-containing gas, (4) separating off the disulphides, suitably by solvent extraction, (5) sweetening the hydrocarbon fraction from (2) with the regenerated alkaline solution, the catalyst being reduced from the oxidized form by the residual mercaptans and the mercaptans being correspondingly oxidized to disulphides, and (6) recycling the alkaline solution containing the reduced catalyst to stage (1).  The alkaline solution preferably consists of a caustic soda or potash of 5-40% concentration, and the solution usually also contains cresols or alcohols to assist the dissolution of the mercaptans.  Suitable catalysts are haemoglobin, chlorophyll, indigo iron, salicylal-alkylene-diamine oleates such as salicylal-ethylene-diimino cobalt, but preferably a sulphur dye of Class 1002 of the Colour Index (1924 Edition) i.e. technical sulfanol B Dark Green.  The process is generally performed at 15 DEG -50 DEG C.  As shown in its simplest embodiment in Fig. 1, hydrocarbon to be refined is fed continuously at 2 into countercurrent extraction device 1 where it melts the alkaline extraction solution containing reduced catalyst fed in through 3. Lye enriched with mercaptides leaves through 4 and the partially extracted hydrocarbon through 9 to extractor 10.  In regenerator 5 the lye meets oxygen-containing gas which enters through 5a, and the mercaptides are converted to disulphides and the catalyst to the oxidized form.  The solution passes by line 6 to separator 7 where disulphides are removed either by decanting or by solvent extraction; the regenerated solution then passes by line 8 to extractor 10 where it meets partially extracted hydrocarbon containing residual amounts of mercaptans.  The mercaptans are converted to disulphides by the oxidized catalyst which is thereby converted to the reduced form.  Alkaline solution containing catalyst in the reduced form is then recycled to extraction device 1, while "doctor sweet" hydrocarbon leaves by 12. Two other more complex embodiments, similar in principle, are also described.  Specifications 701,443, 782,052 and 788,559 are referred to.
Patent GB-790885-A (GB)
Title: Improvements in process for production of alkali metal ferro-cyanides and ammonium sulfate
Inventor: WIRT ALFRED EARLE VAN
IPC: C01C1/244
Filed: 1956-02-20
Abstract: Alkali metal ferrocyanide and ammonium sulphate are produced by reacting the gas containing hydrogen cyanide and ammonia, obtained in the reaction of ammonia, methane, and air, with an aqueous slurry of ferrous hydroxide, produced in the process, in alkali metal hydroxide to form, with the hydrogen cyanide, an alkali metal ferrocyanide solution, and passing residual gas containing ammonia into contact with an aqueous solution of ferrous sulphate to form ammonium sulphate and ferrous hydroxide for use in the previous reaction.  The process may be batchwise or continuous.  The gas is contacted in a scrubber with the slurry of 10-20 per cent solids Fe(OH)2 in NaOH or KOH held between 80 DEG  and 95 DEG  C.  The slurry should contain a slight excess Fe(OH)2, and the pH after contact should be between 9 and 11.  The slurry may include Ca(OH)2 to remove CO2 in the gas as CaCO3.  The excess Fe(OH)2 and CaCO3 are filtered from the solution of ferrocyanide.  The residual gas is contacted in a further scrubber with a solution of FeSO4.7H2O at 25-95 DEG  C., and if the NH3 is insufficient to react with all the sulphate, anhydrous or aqueous ammonia may be added.  The Fe(OH)2 is filtered off and returned to the first scrubbing, leaving ammonium sulphate solution, which may be used in the manufacture of Iron Blue pigment.
Patent GB-577231-A (GB)
Title: Improvements in and relating to precision linear-dimension measuring instruments
IPC: G01B5/06
Filed: 1944-03-21
Abstract: 577,231. Linear - dimension gauges. KILISZEK, S. R. March 21, 1944, No. 5252. [Class 106 (ii)] In a comparator wherein slip gauges: are used to set the instrument to a measurement in near relation to the one required, after which precise adjustment is made, the supplementary adjustment is provided by the engagement of a uniformly tapered portion 24 of a rotatable, threaded spindle 22, movable axially by means of a micrometer 20 or equivalent device, the tapered portion 24 coacting with the head of a plunger 32 forming or supporting the contacting or indicating member 39 of the instrument. A drawer 44 is provided for the storage of slip gauges.
Patent GB-367563-A (GB)
Title: Method of and apparatus for continuous extraction of oils and fats
IPC: C11B1/10
Filed: 1931-02-19
Abstract: <PICT:0367563/III/1> Fats and fatty oils are extracted from vegetable and other fatty materials by treatment in countercurrent with a volatile solvent in an apparatus consisting of two upright extracting-vessels connected at their bases by a worm conveyer.  Raw material, fed into a sieve 12 at the top of a vessel 10, passes downwards to a conveyer 7 which presses the material under regulated pressure into the base of a second vessel 1, through which, with the aid of guides 14, it is raised by a screw conveyer 2 which may be perforated and meets descending streams of volatile solvent injected through ports 15.  The extract rises through the vessel 10.  The extracted fat is recovered by distilling the filtered extract. Volatile solvent is removed from the extracted residues by a steam jacket 16, solvent vapours passing out through a pipe 18, and the residue through a pipe 17.  The screw conveyer 7 is driven by a pulley 9 through a spring-controlled claw coupling which is released at a predetermined pressure.
Patent GB-981182-A (GB)
Title: A method of producing aluminous metal particles
Inventor: CLAIBORNE VERNON DALHART
IPC: B22F9/10
Filed: 1961-02-13
Abstract: <PICT:0981182/C6-C7/1> Acicular particles of plus 200 mesh of aluminium or aluminium based alloys are produced by centrifugally casting the molten metal from a perforated pot which is rotated at such a speed, e.g. 1700-8000 r.p.m., that the particles are centrifugally thrown horizontally at least six feet in a fall of 1 1/2 feet.  The particles produced range in size from 5-100 mesh and by varying the size of the perforations of the casting pot and the speed of rotation the size range may be regulated.  The apparatus comprises a centrifugal casting pot 12, with radially extending apertures 38 ranging from 1/8 -0.040 inch diameter, driven by motor 22 mounted in a separate chamber 26 in a tank 30.  Molten aluminium is tapped from furnace 40 via conduit 44 into the pot 12 and the granulated particles are centrifugally thrown into the water bath 28. Alternatively the particles may be collected in an air blower system. The preferred casting temperature is 1300-1350  DEG F. and the pot 12 is preheated to this temperature range. Aluminium based alloys containing Cu, Mg, Cr or Zn may be granulated.  Specification 947,724 is referred to.
Patent GB-657800-A (GB)
Title: Method of construction of sound absorbing passages
IPC: E04B1/82
Filed: 1949-02-26
Abstract: 657,800. Silencers. TRAVAUX SOUTERRAINS. Feb. 26, 1949, No. 5298. Addition to 602,918, [Group X]. [Class 7(ii)] [Also in Group X] A method of constructing parallel soundabsorbing passages wherein the partitions separating the different passages are provided with interruptions, as in the parent Specification, is characterized in that different lengths are given to the various passages forming the interruptions. Each partition 14 is broken at bc, de...b<SP>1</SP>c<SP>1</SP>, d<SP>1</SP>e<SP>1</SP>... into sections of different lengths so that the passages 15 are not all resonant simultaneously. The interruptions form expansion chambers 15a the walls of which may be covered with sound-absorbent materials, or with devices forming accoustic resonators comprising panels of e.g. glass wool or panels in front of cavities in the walls. The lengths of the partition sections should preferably not be multiples of any number, and the Specification indicates how they may be chosen so that the system is in resonance opposition with respect to the most troublesome frequencies of the sound wave-band and: the most important harmonies thereof. The efficiency of the system may be increased by intermediate partitions 16, 17 at the ends of the passages 15. The partitions 14 may have openings of various shapes and sizes which may or may not be opposite openings in adjacent partitions. Regarding the direction of sound propagation as from left to right in the Figure, the upstream edges a, c, e...a<SP>1</SP>, c<SP>1</SP>, e<SP>1</SP> of the partition sections are preferably rounded by tips of sound-absorbent material, e.g. glass wool, protected by perforated metal plates or gratings. The passages need not be straight, but may have sections connected by oblique sections, straight or curved.
Patent GB-828037-A (GB)
Title: Improvements relating to the manufacture of sealing rings
IPC: F16J15/20
Filed: 1958-02-19
Abstract: A copper-silver-zinc alloy for use as a lining or metal facing on the inside of a stainless steel sealing ring in a gas turbine has the following constituents:-  .Ag.25% .Cu.52 1/2 % .Zn.22 1/2 %
Patent GB-107949-A (GB)
Title: Improvements in Gramophones or Sound Reproducing Machines of the Disc kind of the Internal Horn or Hornless Type.
Inventor: BUTLER JOSEPH
IPC: G10K13/00
Filed: 1917-04-17
Abstract: 107,949. Butler, J. April 17, 1917. Cases with internal horns.-The horn g of an enclosed-horn gramophone, instead of curving beneath the turntable a, is curved in the opposite direction, and has its mouth projecting beyond the front of the casing in order to allow a freer path for the sound and to enable the operator to adjust the sound-box d without impeding the sound. The space f may be utilized for storing records and accessories.
Patent GB-101514-A (GB)
Title: Improvements in Coloured Lime and Process of Producing same.
Inventor: KECK GEORGE SHAFFER
IPC: C09C1/02
Filed: 1916-04-13
Abstract: 101,514. Keck, G. S. April 13, 1916. Pigments.-Coloured dry hydrated lime is produced by mixing a colouring-matter or pigment with the lime during the process of hydration. The colouring-matter, water, and lime may be mixed in the hydrating-apparatus, or the colouring-matter may be added to the water before this is added to the lime. In an example, 50 lb. raw sienna are mixed with 50 gallons of water and added to 1500 lb. lime, the product having a pale yellow tint.