baber/WOPTO huggingface dataset:
Patent GB-227236-A (GB)
Title: Improvements in and relating to ventilating shutters for the roofs of carriages and the like
IPC: F24F13/078
Filed: 1923-11-01
Abstract: 227,236. Ford, E. L. Nov. 1, 1923. Ventilators; valves.-A combined carriage roof lamp and rotary hit-and-miss ventilator comprises an apertured foundation plate 1 surrounding a central lamp chamber 2 and an apertured shutter 4 rotatable from the under side by a knob 8. The shutter 4 is pressed against the plate 1 by a spring ring 9 coacting with an annular recess in the wall of the chamber 2. The electric lamp is preferably mounted between terminals 11 in the wall of the chamber so that the leads can be attached on the exterior of the device.
Patent GB-1017564-A (GB)
Title: Improvements in or relating to piston-type compressors
IPC: B60C9/00
Filed: 1962-07-17
Abstract: 1,017,564. Compressors; silencing. M. CLAUSEN, (Trading as FIRMA DANFOSS, VED ING M. CLAUSEN]. July 17, 1962 [Aug. 4, 1961], No. 27485/62. Headings F1B and F1N. Arange of piston type compressors, e.g. as used in refrigerators, with different diameter cylinder bores is produced from identical cylinder block castings provided with at least two integral silencing chambers 4, 5, by connecting the silencing chambers up in different ways. The compressors are provided with a valve plate 8 with inlet and exhaust valves 9, 10, and an angularly adjustable head 11 with a partition 14 forming suction and exhaust valve chambers 12, 13, the mounting means of the head 11 permitting it to be mounted in alternative positions at 90 degrees to one another. In Fig. 1 silencing chambers 3, 4, are connected to chamber 12 and chambers 5, 6, are connected to chamber 13. In Fig. 2 (not shown) the head 11 is turned through 90 degrees and chambers 3, 4, are corrected to the suction chamber 12 in parallel with the chambers 5, 6. In Fig. 3 (not shown) all the chambers are connected in series to the suction chamber.
Patent GB-742212-A (GB)
Title: Improvements in or relating to transistor amplifiers
IPC: H03F3/18
Filed: 1953-10-08
Abstract: 742,212. Transistor amplifying circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 8, 1953 [Nov. 5, 1952; Jan. 13, 1953; Feb. 2, 1953; June 9, 1953], No. 27675/53. Class 40 (6). In a cascaded amplifier, the base and emitter of the first transistor and the collector of the final transistor are connected through D.C. paths to one terminal of the power supply, the collector of the first transistor being connected through a D.C. path to the base or emitter of the final transistor, the other electrode being connected through a D.C. path to the other terminal of the supply. With this arrangement, substantially the full D.C. voltage is available for each transistor. A source 7, Fig. 1, feeds the base-emitter circuit of a N-P-N transistor I, both electrodes having a potential near the negative end of the supply 8. A junction transistor is preferred for the first stage I and the stray capacity C which limits the highfrequency operation is rendered ineffective due to the low emitter-base impedance of stage II, the base being held at a constant potential near the positive terminal of the supply. The join of the two transistors is connected over inductor 12 to the positive terminal, the collector of the P-N-P transistor II being connected over the load impedance 10 to the negative terminal. In a modification, Fig. 2 (not shown), the collector of transistor I is connected directly to the base of transistor II, the emitter being taken to the full positive potential of the battery so that the connection over inductor 12 may be omitted. In a further modification, Fig. 3, the load 10 is placed in the emitter circuit of transistor II and a resistor 16 included in the collector circuit, across which is developed a voltage which is fed back to the emitter of transistor I. The distortion in the output current is reduced and the working points of the transistors stabilized by the use of the negative feed-back and the impedance 16 may be made frequency dependent. In a further modification, Fig. 4 (not shown), four transistors are cascaded.
Patent GB-463876-A (GB)
Title: A hand press for extracting fruit juices
IPC: A47J19/02
Filed: 1935-10-08
Abstract: 463,876. Extracting juice from fruit. CALDWELL & SON, Ltd., J. J., and CALDWELL, W. J. Oct. 8, 1935, No. 27709. ,[Class 28 (ii)] A fruit press comprises a pair of handle members A, G pivoted together by a pin F which, in the position of use of the press is vertical so that the handles A, G move in a horizontal plane, the handle A being formed with a sector-shaped fruit receiver B and the handle G with a pressing plate H. A perforated straining plate J is mounted in the receiver B so that the juice is discharged over the spout L. The plate J is provided with pins j which fit freely in holes c in the container so that the plate is readily detachable.
Patent GB-713104-A (GB)
Title: Improvements in or relating to electrical cable fittings for holding cables in engagement with junction boxes and other casings for electrical devices
Inventor: BOTTONI ROBERT JOSEPH
IPC: H02G3/06
Filed: 1951-11-27
Abstract: 713,104. Mechanical couplings for cable sheathing or covering. UNIMATIC CORPORATION. Nov. 27, 1951, No. 27732/51. Class  3 8( I). A fitting for anchoring a cable to a junction box or other casing for an electrical device, comprises a pair of arcuate sections 2 I, 22, the inner ends of which are grooved at 30, 45, to receive the wall of an opening in the junction box. Said inner ends are expanded into engagement with the wall of the junction box by pivoting the sections about flat or pointed surfaces 39 on section 21. The bringing together of the outer ends of the sections clamps a cable passing through the fitting, projections 40 engaging the cable sheath, and the ends are maintained in the clamping position by screws 24 passing through lugs on the sections. In a modification, Fig. 13, the inner ends of the sections 121, 122 have partial screwthreads 152, 154 for engaging a screw-threaded opening in a junction box 123, the fitting being applied to the junction box as in the previous embodiment. The fitting may be constructed to extend straight or at various angles from the junction box and the screws 24 may be replaced by a screw cap engaging a tapered screw thread on the outer ends of the sections.
Patent GB-492130-A (GB)
Title: Improvements in and relating to hand-controlled switch boxes for railways, tramways and the like
IPC: B61L5/02
Filed: 1937-10-12
Abstract: 492,130. Operating railway &c. switches. SUMMERSON & SONS, Ltd., T., and WRIGHTSON, S. S. Oct. 12, 1937, No. 27753. [Class 104 (i)] In a switch-operating mechanism of the kind comprising a spring toggle system 19, 34 connected at 36 to the switch and operated by a hand lever 11 normally occupying a common rest position for either extreme position of the switch, the lever operates the toggle system through a slide 16 engaging one or other of two abutments 28, 29 carried by links 24, 25 pivoted to arms 22, 23 carried by the toggle link 19, which pivots on the axis 18. The ends of the abutments are bevelled at 30, 31 so that as they move in opposite directions, 28 can travel over 29 and drop into engagement with the end of the slide 16 at the end of the switch movement. During the first part of its movement the lever 11 pivots on a pin 10, and during the latter part on an abutment 14. The lever may be connected to slide 16 by a pivot 15 or by a toothed sector on the lever engaging a rack on 16. The abutments 28, 29, instead of moving over each other, may spread apart in order to pass. The handle 11 is at rest while the points are trailed through.
Patent GB-403496-A (GB)
Title: Improvements in bill and letter files
IPC: B42F13/12
Filed: 1932-10-06
Abstract: 403,496. Filing papers. DADLEY, B. L., c/o Port of London Authority, Trinity Square, Tower Hill, London. Oct. 6, 1932, No. 27793. [Class 146 (i).] A bill or letter file comprises a base e and a vertical wire d with a sleeve a therefor, either the wire d or the sleeve a being fixed to the base e and the other part being removably locked to the base. As shown in Fig. 5, the sleeve a is secured to the metal base e by a flanged disc k which, together with the top of the base, forms grooves f in which slides a metal strip c having a keyhole or tapered slot adapted to be engaged with a groove or collar b on the removable hooked wire d so as to secure it to the base e. If the wire d is fixed to the base, the hooked end is omitted therefrom and is formed on the detachable sleeve a. A wooden base may be used instead of the metal base.
Patent GB-426732-A (GB)
Title: Improvements in or relating to dispersions of combustible solid in oils
IPC: C10L1/32
Filed: 1933-10-09
Abstract: Stable fuel dispersions for furnaces or Diesel engines are obtained by grinding or otherwise comminuting combustible solid to substantially coarse colloidal size in presence of a high-boiling oil and 0,5--1,0 per cent of vulcanized or unvulcanized rubber.  A peptizer may be added, the dispersion may be effected hot or cold, the product may be centrifuged to remove oversized particles, and more oil may be added.  The oils boil at 100--400 DEG  C., and include crude petroleum derivatives, coal oils, shale oils, tar, and tar oils.  Solids specified are coal, lignite, peat, oil-shale or torbanite, charcoal, wood, petroleum cokes, and residues from the carbonization of coal.  Peptizers suitable are naphthalene oil, anthracene oil, creosote oil, low-temperature tar, and products obtained by heating coal and oil mixtures; they may form 5--50 per cent of the final mixture.  In one example, 50 lb. of finely ground coal, 50 lb. of Persian oil residuum of S.G. 0,930, and 0,25 lb. of cr<\>zepe rubber are ground in a balanced rod mill until 99,8 per cent passes a 200 I.M.M. sieve. The oil, the mill, or both may be heated.  Specifications p  17729/13, 155,212, 165,425, 195,408, [all in Class 91], 323,773, [Class 32], and 406,067 are referred to.
Patent GB-1195261-A (GB)
Title: Process for the Manufacture of Nitric Acid
IPC: C01B21/26
Filed: 1967-06-16
Abstract: 1,195,261. Nitric acid. FARBWERKE HOECHST A.G. 16 June, 1967 [18 June, 1966], No. 27831/67. Heading C1A. Nitric acid is made by passing nitrous gases, from the catalytic oxidation of ammonia with air in countercurrent flow with water and aqueous nitric acid in an absorption device, whereby nitrous gases are absorbed. with production of nitric acid, wherein the nitrous gases are introduced into the first half of the absorption device and in a zone in the second half of the absorption device nitrous gases are absorbed and oxidized by oxidizing nitric acid, which is conducted in a cycle separate from the said countercurrent flow, and the oxidized nitrous gases are blown out of solution by air in another part of this separate cycle and introduced into the first half of the absorption device. The nitrous gases entering the zone may have a concentration up to 3% by volume of NO and NO 2 , and preferably 0À5% by volume, and the nitric acid in the cycle has an HNO 3  content of at least 40% by weight and preferably more than 55% by weight. The process may be carried out at superatmospheric pressures, preferably 3 to 8 atmospheres, in the absorbtion device. The oxidizing nitric acid is preferably at a temperature between + 20‹ C. and - 30‹ C., the preferred range being + 10‹ to - 20‹ C. The absorbtion device is preferably a tray column or a packed column.
Patent GB-1403565-A (GB)
Title: Antioxidant composition
IPC: C10M169/00
Filed: 1972-06-15
Abstract: 1403565 Lubricants BRITISH PETROLEUM CO Ltd 22 May 1973 [15 June 1972] 28060/72 Heading C5F An antioxidant composition comprises (a) a diamine of formula where A is a benzene nucleus substituted in the para position with respect to the N atom with a C 4 -C 9  tert-alkyl group and B is a benzene nucleus substituted, in the para position with respect to one of the N atoms, with a C 4 -C 9  tert alkyl group or is an α- or #-nathyl group; and (b) a sodium or potassium oxide, hydroxide, carbonate, bicarbonate, halide, carboxylate, sulphonate, alkoxide or phenoxide the invention also comprises lubricating base oils containing up to 10% by wt. of the antioxidant composition. The base oil may be mineral or synthetic, e.g. an ester containing at least 2 ester linkages. The preferred amine is N,N,N<SP>1</SP>- tris-(4-t-octylphenyl)-4-t-octyl-1,2-phenylene diamine. Specified ester bases are neopentyl glycol dipelargonate, di - (2<SP>1</SP>,2<SP>1</SP>,4 - trimethylpentyl)sebacate, 2,2,4 - trimethylpentyl- 2,2,7,7 - tetramethyl suberate, caprylic acid/ trimethylol propane/sebacic acid complex ester, and esters of pentaerythritol with a mixture of C 5 -C 11  monocarboxylic acids. In one example, metal catalysts, and bis-benztriazole are also incorporated.
Patent GB-603562-A (GB)
Title: Improvements in or relating to the manufacture of laminated products
IPC: H01B3/00
Filed: 1945-10-25
Abstract: A bonding agent comprises a mixture of a normally liquid polymerizable vinyl monomer and a compatible polyester comprising the reaction product of an olefine-a -b -dicarboxylic acid, an adduct of an olefine-a -b -dicarboxylic acid and a diolefine, and a glycol, or a partial copolymerization product of such a mixture of vinyl compound and polyester.  The vinyl monomer may be styrene, vinyl acetate, acrylic acid, methacrylic acid or methyl methacrylate, but preferably styrene and the preferred glycols have their alcoholic hydroxyl groups separated by two to five atoms; the olefine-a -b -dicarboxylic acid may be maleic, fumaric, itaconic or citraconic or an anhydride and the diolefine butadiene, isoprene, piperylene, a terpene or cyclopentadiene. The adduct preferably comprises from 25-75 moles. per 100 moles. of the acid mixture and the proportion of vinyl compound is about 50 to 75 parts by weight per 100 parts of the glycol polyester. The reaction preferably should be carried out in the absence of oxygen and within a temperature range of 150 DEG  to 220 DEG  C., preferably 180 DEG  to 200 DEG  C. to yield a product of acid number between 10 and 30.  In the example, propylene glycol, maleic anhydride, and the cyclopentadiene adduct of maleic anhydride were heated to form a grindable resin which was mixed with monomeric styrene and hydroquinone as an inhibitor, and at the time of use an accelerator such as benzoyl or lauroyl peroxide was added.  A fabric was impregnated with the solution and formed into a laminated product.  In the Specification as open to inspection under Sect. 91, the bonding agent comprises the copolymerization product of a vinyl compound with a glycol polyester of an olefine a -b -dicarboxylic acid and an adduct of an olefine-a -b -dicarboxylic acid and a diolefine.  This subject-matter does not appear in the Specification as accepted.
Patent GB-973289-A (GB)
Title: End papers
IPC: A45D2/12
Filed: 1962-07-23
Abstract: An end-wrapper for wrapping a hair tress during a permanent waving process comprises a thin sheet of water-pervious paper in which there is bonded directly to one surface of the paper a coating which is adherent to itself and non-adherent to hair. Suitable coatings comprise natural rubber latex and synthetic polymers, e.g. styrene/butadiene, vinyltoluene/butadiene and acrylic copolymers, butyl rubber, neoprene, polyisobutylene and aqueous dispersions of acrylic and methacrylic polymers. Tackifiers, e.g. rosin, rosin derivatives and hydrogenated coumarone-indene resins, may also be present.
Patent GB-761346-A (GB)
Title: Improvements in or relating to filtering or screening devices
IPC: B03B5/18
Filed: 1952-11-10
Abstract: 761,346. Filters; presses for separating liquids from solids. CLAYTON GOODFELLOW & CO., Ltd., and HARRISON, J. Feb. 10. 1954 [Nov. 10, 1952], No. 28224/52. Class 46. A piston 3 in which a wire gauze filter 11 forms part of the upper surface is first brought to its uppermost position by rotation of a crank disc 25, in which position an inlet (not shown) in the lower part of a cylinder wall 1 is uncovered while an outlet (not shown) in the upper part of the wall is covered. Paint or other liquid is fed e.g. by gravity into the cylinder and when the level reaches the gauze 11 the piston is moved downwards, the outlet (to which a spout may be attached) being thereby uncovered and the inlet covered, and filtration taking place through the gauze 11. If a considerable amount of sludge has been deposited on the underside of the gauze a vacuum is created beneath the piston on its next upward stroke ; this clears the gauze. The sludge collected in the bottom of the cylinder may be removed by moving the piston to its bottom position and opening a sludge tap 47. The crank mechanism illustrated may be dispensed with and the piston may be raised by a solenoid or the like actuated by a switch closed by the piston in its bottom position, the downward movement of the piston being effected by gravity. The piston may be moved by manual, hydraulic or pneumatic means.
Patent GB-352819-A (GB)
Title: Flexible discs for shaft couplings
IPC: F16D3/78
Filed: 1930-09-22
Abstract: 352,819. Universal joints. HARDY, SPICER & CO., Ltd. and HARDY, E. J., Birch Road, Witton, Birmingham. Sept. 22, 1930, No. 28242. [Class 80 (ii).] In a flexible disc for a shaft coupling particularly of the kind described in Specifications 108,659, 113,387 and 325,774, [all in Class 80 (ii), Gearing, Variable-speed &c.], comprising vulcanized layers of woven fabric, the bolt holes are machined in rigid non-circular steel stems 4 which have first been wedged into slightly smaller circular holes 2 in the fabric disc 3. The stems 4 are preferably hexagonal rather than square or triangular and fit flush in riveted endplates 6 having complementary apertures 7. The fabric is not compressed on tightening the bolts, but the stems may be slightly shorter so that this is the case.
Patent GB-971195-A (GB)
Title: Improvements in steam turbine power plants
Inventor: FRANKEL ADOLF
IPC: F01K7/40
Filed: 1962-07-23
Abstract: 971,195. Heating feedwater. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 8, 1963 [July 23, 1962], No. 28277/62. Heading F4A. In a steam turbine power plant comprising a boiler 1 supplying steam to a high pressure turbine 3H and thence to a double low pressure turbine 3L from which steam exhausts to a condenser 5, condensate is withdrawn by a pump 21 and returned to the boiler through condensing heaters 23, 25 and condensing heaters 27, 29 supplied respectively with bled steam from the turbines 3L, 3H, the steam being bled from the H.P. turbine at a single point and from the L.P. turbine sections at equivalent points, whereafter the bleed lines 35, 37 bifurcate into respective conduits 35S, 35F and 37S, 37F, the steam to heater 27 first flowing through a heater 31 in which desuperheating occurs. The dimensions of the conduits 37F, 37S and of the associated heaters 23, 25 are such that the mass flow rate of steam through the conduit 37F is 75 to 85% of the total bled steam whilst the steam velocity therethrough is some three times that in the conduit 37S. The dimensions of the conduits 35F, 35S and the heater 31 in which desuperheating occurs and the heaters 27, 29 are chosen to give similar conditions. The pressure drops produced in the conduit 37F and the conduit 35F and desuperheater 31 are respectively much larger than those in the conduits 37S and 35S in which the pressure drops are kept to a mimimum practical value with the result that the saturation pressure and temperature in the second condensing parts 25, 29 of the feedwater heaters are greater than in the first condensing parts, enabling the feedwater to be heated to the highest possible temperature. As shown in Fig. 2, the heater sections 27, 29 and 31 may be combined in a single vessel comprising a shell 65 housing a bank of nested, inverted U- tubes 51 conveying the feedwater. Baffles 71, 72, 75 divide the shell interior into three compartments corresponding to the sections 27, 29, 31. Superheated bled steam enters compartment 31 at 77 and passes thence at a lowered pressure through apertures in the baffle 75 into compartment 27 wherein it condenses. Higher pressure steam enters compartment 29 wherein it condenses, the condensate flowing into the compartment 27 which is provided with a condensate drain (not shown).
Patent GB-1511191-A (GB)
Title: Hydraulic dashpot
IPC: F16F9/44
Filed: 1976-07-07
Abstract: 1511191 Hydraulic dashpots EFDYN CORP 7 July 1976 [6 Aug 1975] 28293/76 Heading F2S An hydraulic dashpot comprises a metering orifice 44 through which hydraulic fluid flows to a chamber 40 when a piston rod 78 receives a rearwardly directed force, a tube 28 of the dashpot being rotatable to adjust the angular position of the metering orifice 44 relative to a metering sleeve 60 having a spiral valve edge 76 so as to adjust the effective area of the metering orifice 44. The chamber 40 contains compressible cellular material 104. The piston rod 78 carries a piston assembly 82 comprising a piston ring 88 axially movable, relative to the piston rod, between portions 84, 86 of the piston assembly.
Patent GB-323277-A (GB)
Title: Improvements in or relating to differential gearing
IPC: F16H3/50
Filed: 1928-10-03
Abstract: 323,277. Graseby, R. C. Oct. 3, 1926. Drawings to Specification. Automatic trausmitters.-Relates to a transmitter for repeatedly transmitting a code signal - constituted by current impulses of different lengths. The signals are transmitted by a pivoted lever carrying two cams of different lengths which co-operate with pins, preferably adjustable, mounted on a rotatable disc which is driven by an electric motor through a differential gearing. The apparatus is identical with that described in Specification 322,568 but the claims relate more particularly to the driving and differential gears.
Patent GB-1371119-A (GB)
Title: Process for making hydrazodicarbonamide
IPC: C07C239/00
Filed: 1972-06-16
Abstract: 1371119 Hydrazodicarbonamide PECHINEY UGINE KUHLMANN 16 June 1972 [25 June 1971] 28358/72 Heading C2C Hydrazodicarbonamide of Formula I (I) is prepared by reacting urea and sulphuric acid with an azine of Formula II in which R 1  and R 2  are identical or different, both of them being linear or branched alkyl radicals or cycloalkyl radicals containing up to 6 carbon atoms, or one of them being a hydrogen atom, or both together being bonded to the same carbon atom and being a linear or branched alkylene radical containing from 3 to 5 carbon atoms.
Patent GB-1223956-A (GB)
Title: Cast brake disc
IPC: F16D65/12
Filed: 1969-06-05
Abstract: 1,223,956. Casting processes. GENERAL MOTORS CORP. 5 June, 1969 [11 June, 1968], No. 28541/69. Heading B3F. A brake disc is east so that it has at least two peripherally spaced surface regions of lesser hardness than the remaining surface portions of the disc, by forming the disc in a mould which has the same number of ingates as the desired number of regions of lesser hardness. The regions of lesser hardness are preferably equally spaced and are located at positions corresponding to those of the ingates cast initially with the disc.