baber/WOPTO huggingface dataset:
Patent GB-400868-A (GB)
Title: Improvements in ocular tube attachments for monocular microscopes
IPC: G02B21/24
Filed: 1933-05-08
Abstract: 400,868. Microscopes. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Mav 8, 1933, No. 13307. Convention date, May 12, 1932. [Class 97 (i).] In an ocular tube attachment for monocular microscopes, providing an inclined viewing direction with a vertical microscope tube by deviating the rays by means of a reflecting system used in conjunction with a glass body extending into the microscope tube and traversed by the imagining rays without deviating them, the reflecting system and the glass body are made of a single piece of glass of which at least one surface which is not traversed bv the imagining rays is parallel to the entering rays and acts as a reflecting surface. The glass body d is a prism of square cross section with rounded corners to fit within a tube a, the lower end e of the body being at right-angles to its axis and resting on a cap b screwed to the tube a. The upper surface f is inclined at 30‹ to the axis and the vertical surface m is formed as a reflector n. The tube a terminates at its upper end in a hemispherical cap g receiving the ocular tube h, the axis of which is at right-angles to the surface f. The outer surface k of the tube a fits into the microscope tube l. The glass body d extending into the microscope tube accommodates the greater tube length entailed by the inclined eyepiece construction to an objective adapted to the usual length of tube employed in a straight-vision microscope, and thus obviates the use of a negative lens to increase the focal length of the objective.
Patent GB-271479-A (GB)
Title: Improvements in collapsible tubes or containers
IPC: B65D35/38
Filed: 1927-05-18
Abstract: 271,479. Copen, S. I. May 22, 1926, [Convention date]. Tubes or containers, collapsable.-The nozzle 2, Fig. 1, of a collapsable tube 1 for containing tooth-paste is provided with an elongated discharge orifice 3, Fig. 2, which is widened at its ends, in order to ensure that the paste will remain on the tooth brush, when placed thereon, and also that the greater part of the paste will be applied where it is most required, r.amely, at the necks and surfaces of the teeth.
Patent GB-312635-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of friction bodies for brake and clutch purposes
IPC: B28B1/52
Filed: 1929-04-30
Abstract: 312,635. Kirchbach'sche Werke Kirchbach & Co. May 29, 1928, [Convention date]. Moulding-plant combined with furnaces; mouldopening devices.-Apparatus for the manufacture of brake and clutch linings, from fibrous material mixed with a binder and hardened by pressure and heat, comprises an annular furnace provided with an annular rotatable mould support and formed with apertures communicating with an external circular track along which the moulds are passed beneath opening, closing and pressing machines and past emptying, cleaning and filling positions. As' shown, the furnace b, heated by gas burners, is formed with an inner wall b<2> and an outer wall b<1> having adjacent apertures b<10>, b<11> for the introduction and withdrawal of the moulds. Within the furnace is mounted an annular mould support a carried by arms a<4>, a<5> from a shaft a<3> and rotated slowly by a pinion c engaging projecting pins. Outside the furnace is an annular track f upon which sector-shaped mould carriages w carry the mould to opening. closing and pressing machines i, k, m. Roller tracks g, h extend through the openings b<10>, b". The opening machine i, Fig. 5, comprises a holding-device i<11> adapted to engage longitudinal, undercut guides w<11> beneath the carriage and a gripper i<12> adapted to engage longitudinal ribs on the upper mould section and operable by hydraulic means to withdraw the section. After opening, the upper mould section is supported by pivots u<19>, Fig. 4<a>, upon' posts w<19> on the carriage. Brackets, w<21> support the section in position for cleaning. The closing machine k, Fig. 6, comprises a member k<12> adapted to engage the mould section u<2> and associated with a lowering brake k<24> whereby the section u<2> is deposited upon the lower mould section u<1>. A detent k<23> retains the section u<2> while the carriage w is moved back to align the section u<1>. Undercut guides w<10> on the carriage engage corresponding parts on the mould section u<1>. The moulds are moved to and from the furnace by a suitable tool and stops are provided to position the carriage in alignment with the furnace openings and with the various machines.
Patent GB-693695-A (GB)
Title: Improvements relating to magnetic sound recording or reproducing apparatus
Inventor: DUTTON GILBERT FARADAY
IPC: G11B15/66
Filed: 1950-05-30
Abstract: 693,695. Magnetic recording and reproducing apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 30, 1951 [May 30, 1950], No. 13420/50. Class 40 (ii). In a magnetic tape recording and reproducing apparatus of the kind described in Specification 693,685, a cover means for the transducer head or heads 1, 1a has an elongated gap 42 for the insertion of the tape 45, one surface 46 of the gap standing above the other surface 43 to an extent of at least the width of the tape in order to form a surface against which' the tape may be held, as shown in Fig. 2, from which position the tape can be guided downwardly into the gap 42.
Patent GB-1076841-A (GB)
Title: Improvements in or relating to photo-multipliers
IPC: H03C1/34
Filed: 1963-04-04
Abstract: 1,076,841. Modulators. D. J. KYTE. March 26, 1964 [April 4, 1963], No. 13523/63. Heading H3R. [Also in Division H1] The number of electrons liberated by incident light which leave the photo-cathode PC of a photo-multiplier is varied by an electrostatic field produced by a light transparent conductive screen S positioned adjacent the cathode and connected to a carrier frequency source whereby the photo-multiplier output includes a signal at carrier frequency modulated by the intensity of the light source. The other side of the source may be connected to the photo-cathode or to earth and the source may supply periodic positive pulses or alternating current. The screen S may be of fine wire mesh or conductive glass and may be included within the envelope of the photo-multiplier.
Patent GB-705194-A (GB)
Title: Improvements in or relating to an emulsifiable lubricating composition suitable as ametal working lubricant
IPC: C10M173/00
Filed: 1951-06-07
Abstract: A composition which is emulsifiable with water to form a complex water-in-oil and oil-in-water emulsion, suitable for use as a metal fabricating lubricant comprises 25-90 parts by weight of a mineral base oil, 2-50 parts of one or more of certain oiliness agents, 2-25 parts of an oil-in-water emulsifying agent and 0.5-3 parts of a certain water-in-oil emulsifying agent.  The oiliness agents are chosen from fatty acids, rosin acids, fatty oils, or the corresponding alcohols and mixtures thereof, preferably lard oil, oleic acid, sperm oil, tall oil and soyabean oil.  For the oil-in-water emulsifying agent, it is preferred to use combinations of at least two different surface active materials of the nonionic ether or ester-ether type, such as sorbitan esters of fatty acids, polyglycol ethers and polyoxyethylene sorbitan fatty acid esters. Thus, a combination of the fatty acid esters, particularly the partial fatty acid esters, of sorbitan and polyoxyethylene sorbitans may be employed, particularly the materials sold under the Registered Trade Marks "Span" and "Tween."  If desired, these oil-in-water emulsifying agents may be used in conjunction with an oil-soluble monovalent metal sulphonate, particularly an alkali metal petroleum sulphonate.  The water-in-oil emulsifying agent is chosen from polyvalent metal soaps, polyvalent metal sulphonates and partial oleic acid esters of polyhydric alcohols.  These polyvalent metal salts may be salts of alkaline earth metals or aluminium, particularly oil-soluble calcium petroleum sulphonates and calcium oleate, while the partial oleic acid ester may be pentaerythritol monooleate.  A preferred composition consists of mineral oil containing 15 per cent. by weight, based on the total composition, of lard oil, 4 per cent. of polyoxyethylene sorbitan monooleate, 1 per cent. of sorbitan monooleate, 2 per cent. of the oil-soluble sodium salt of petroleum sulphonic acids of molecular weight between 400 and 500 and 1 per cent. of calcium oleate.
Patent GB-557750-A (GB)
Title: Improvements in sensitive photographic materials for colour photography
IPC: G03C7/392
Filed: 1941-10-21
Abstract: 557,750. Hydroquinone and catechol derivatives. KODAK, Ltd. (Eastman Kodak Co., Vittum, P. W., and Wilder, L. S.). Oct. 21, 1941, No. 13540. [Class 2 (iii)] [Also in Group XX] n-Amylhydroquinone is prepared by demethylating 2 : 5 - dimethoxy - n - amylbenzene. Iso-amyl hydroquinone is similarly prepared from 2 : 5-dimethoxy-iso-amylbenzene. n-Heptylhydroquinone is prepared by heating together hydroquinone, n-heptanoic acid, and zinc chloride and reducing the product by boiling with amalgamated zinc and hydrochloric acid. Di-n-heptylhydroquinone, together with nheptylhydroquinone, is prepared by heating hydroquinone, n-1-heptene and anhydrous zinc chloride together in a sealed tube, and fractionating. Di-iso-octylhydroquinone is prepared by reacting together hydroquinone, acetic acid, concentrated sulphuric acid, and di-iso-butylene. Dodecylcatechol is prepared by heating together catechol, dodecene-1 and zinc chloride and distilling under reduced pressure.
Patent GB-238513-A (GB)
Title: Electric regulating systems
IPC: H02P9/24
Filed: 1925-05-25
Abstract: 238,513. British Thomson-Houston Co., Ltd., (Assignees of Carothers, R. M.). Aug. 18, 1924, [Convention date]. Regulation, automatic.-When a Tirrill regulated generator is overloaded the voltage supplied to that winding of the regulator which responds to the exciter voltage is varied by means controlled by the generator voltage or other characteristic of the generator output, in such a way that the generator voltage is rendered incapable of building up. A resistance 21 normally in series with the coil 11 fed by the exciter 5 is short-circuited by a dash-pot relay 20 when the voltage of the generator 1 is sufficiently effected by an overload or short-circuit, thus causing the regulator to maintain the exciter voltage constant at a low value dependent upon the calibration of the coil 11.
Patent GB-158810-A (GB)
Title: Improvements in connection with incandescent gas burners
IPC: F23D14/30
Filed: 1920-05-18
Abstract: 158,810. Colbran, J. B. May 18, 1920. Incandescent gas burners; gas supply.-In incandescent gas burners provided with means for adjusting the supply of gas and air to the mixing- tube separately, the burner body is formed with a screwed boss a, Fig. 1, for attachment to the gas supply, the gas traversing a passage b to a chamber c whence it passes through slots g<1>, provided in a hollow plug g, and a small orifice in the nipple k to the mixing-chamber d. The air passes to the burner through an opening f made in the burner body, the amount being regulated by rotating the head h of the hollow plug g. The nipple k of this plug acts as a valve finding a seating in the open end of the Bunsen tube d. The gas supply is regulated by a needle valve i attached tq a screwed spindle j<1> which works in the plug g. The mantle carrier is screwed on to the abutting walls of the chamber e.
Patent GB-1014015-A (GB)
Title: Improvements in or relating to bearing lubricating means
Inventor: DAVIES DAVID OMRI
IPC: F16C33/66
Filed: 1964-04-02
Abstract: 1,014,015. Lubricating systems. ROLLSROYCE Ltd. April 2, 1964, No. 13723/64. Heading F2A. A lubricating system for a ball bearing 15 (Fig. 1) in a vertical-lift gas-turbine engine 10 comprises a sump chamber 26 (Fig. 2) from which lubricant is raised through a duct 32 by passage of air through a nozzle 34 and a Venturi tube 31 in a pump 30, the lubricant being deposited in a chamber 22 to flow downwardly through the bearing by way of a plurality of metering orifices 25 and return to chamber 26. Air may be supplied to nozzle 34 through a pipe 35 at atmospheric pressure whilst a lower pressure is maintained in chamber 26 by an injector pump 28 which is fed with compressed air by the compressor 12 of the engine through a conduit 28a, pump 28 also serving to with. draw a proportion of the lubricant from chamber 26. Alternatively, pipe 35 may be fed with compressed air from compressor 12 or by a ram effect. The system is charged with lubricant, e.g. oil, by a single pre-determined quantity, or " shot," thereof being delivered to chamber 22 by an injector pump 23. Chamber 22 may be omitted and a single pre-determined quantity of lubricant is then delivered directly to the bearing by a metering pump (not shown) through a supply pipe (not shown) mounted above the bearing, the lubricant collected in sump 26 being returned to the bearing by pump 30 through said supply pipe or a separate pipe (not shown) situated above the bearing.
Patent GB-702609-A (GB)
Title: Improvements in or relating to control mechanism for fire fighting equipment
Inventor: WATSON RICHARD
IPC: A62C5/00
Filed: 1951-06-11
Abstract: 702,609. Proportioning water foam solution for fire fighting SUN ENGINEERING (RICHMOND), Ltd. May 8, 1952 [June 11, 1951], No. 13780/51. Class 86 In fire fighting equipment wherein water and foam solution are delivered under pressure by a pump driven by an engine having an accelerator pedal on a shaft n, the delivery valves, not shown, for the water and foam solution are operated by links a and 5. respectively, in unison with the accelerator so as to maintain a substantially constant ratio between delivered quantities of water and foam solution irrespective of variation in pump speed. A hand control lever 10 is operatively coupled to the links a and 5 and to the accelerator shaft n by a system of links associated with bell crank levers c and i. The link 5 which operates the foam solution valve carries a knuckle 4 within which a pin 3 carrying a roller, not shown, engages a slot 2 in a link q. The link q is connected to the bell crank i by a link p, and is pivoted at r to a longitudinally movable shaft s, the arrangement being that the shaft s. is longitudinally deplacable by rotation of a knob u to alter the aspect to the horizontal of the cam slot 2 and thereby correspondingly vary the relationship between the extent of opening of the foam solution valve in relation, to the water valve so that a desired foam solution to water ratio may be selected. The shaft s is also connected by a link 12, bell crank lever 13, and link 14 with an air valve (not shown) so that longitudinal movement of the shaft s also effects opening and closing of the air valve.
Patent GB-828563-A (GB)
Title: Improvements in or relating to the polymerization of bicyclo (2, 2, 1)-2-heptene
IPC: C08G61/08
Filed: 1957-04-30
Abstract: A catalyst used in the polymerization of bicyclo(2,2,1)-2-heptene, is obtained by reducing a halide of a metal of Group IVA, VA or VIA with an organometallic compound MRn (wherein R is hydrocarbon and M is one or more of alkali metals, alkaline earth metals and aluminium) which organometallic compound is used in excess of the stoichiometric quantity necessary to reduce all the IVA, VA or VIA metal to a valency not above 2.  Specified catalyst components are lithium aluminium tetraheptyl, aluminium triisobutyl, magnesium diaryls, lithium alkyls and titanium and/or vanadium tetrachlorides; some preferred molar ratios are given.  A solvent such as decahydronaphthalene is preferably present.  Specification 777,414 is referred to.ALSO:A polymer of bicyclo (2,2,1)-2-heptene which contains recurring units of formula <FORM:0828563/IV (a)/1> is obtained by contacting the monomer with a complex catalyst obtained by reducing a halide of a metal of Group IVa, Va or VIa with an organometallic compound MRn (wherein R is hydrocarbon, and M is one or more of alkali metals, alkaline earth metals and aluminium) which organometallic compound is used in excess of the stoichiometric quantity necessary to reduce all the IVa, Va or VIa metal to a valency not above 2.  Specified catalyst components are lithium aluminium tetraheptyl, aluminium triisobutyl, magnesium diaryls, lithium alkyls and titanium and/or vanadium tetrachlorides; some preferred molar ratios are given. The polymerization is preferably in a solvent such as decahydronaphthalene, and products which may be formed into films and cold drawn are obtained.  Removal of catalyst is effected with butyl alcohol and acetone and the simultaneous stabilization of the polymers with N,N1-diphenyl paraphenylene diamine is described.  The viscosity of the polymers is determined in solution in chloronaphthalene.  After-treatments with bromine, ozone and peracids are referred to.  Specification 777,414 is referred to.
Patent GB-775328-A (GB)
Title: Process to demineralize or to concentrate saline solutions by congealing said solutions
IPC: C02F1/22
Filed: 1955-05-13
Abstract: 775,328. Purifying liquids. TREPAUD, G. May 13, 1955, No. 13852/55. Class 46. [Also in Group XIII] In fractionating aqueous saline solutions, e.g. in extracting potable water from sea-water, the solution is frozen in part, the unfrozen solution is drained off, and the frozen part is broken up and then warmed by a current of air to a temperature less than 0‹C., the resulting melt being drained away. The residual frozen part having the desired purity is then melted for use. As shown, sea-water is fed to a tube-ice machine 5, Fig. 3, refrigerated by brine from a coooler 4. The tubes of ice are then broken up and placed in container 6 where they rest on a grid 11, Fig. 4. Warm air flows through a control valve 18 and is blown by a fan 13 over a cooler 15 and through the ice, the melt collecting in the bottom 20 of the container. The air may be recirculated through a control valve 19. The remaining ice is then melted in an exchanger 9, Fig. 3, the potable water being then discharged for use through pipe 10. The temperature of the warming air can be controlled by thermostats. Sea-water from the tube-ice machine 5 flows through exchanger 8 and the melt from container 6 flows through exchanger 7. The cold of exchangers 7, 8 and 9 is recovered, e.g. by pre-cooling the sea-water. In a modified form, the ice-pieces are spread in a thin layer on a perforated conveyer which passes them under a duct for the warming air, the warming being varied by altering the air temperature or the speed of the conveyer in accordance with the salinity of the potable water.
Patent GB-1362617-A (GB)
Title: Apparatus for cutting rolled products
IPC: B23D23/00
Filed: 1972-03-24
Abstract: 1362617 Shearing VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT OKHRANY TRUDA VTSSPS 24 March 1972 13917/72 Heading B3W Apparatus for cutting rolled products comprises two workpiece clamps, one fixed to a housing and the other axially slidable in the housing, a frame mounted in the housing for sliding movement at right-angles to the axis of the clamps and carrying two blades disposed parallel to, and spaced apart in, the direction of frame movement, the leading blade having a face substantially coplanar with an end face of the fixed clamp, drive means for moving the frame, a cam between the blades co-operable with the slidable clamp so as to move it into position in which an end face of the clamp is coplanar with a face of the trailing blade and locking means for holding the slidable clamp in said position. As shown, a bar 18 is fed through a fixed split clamp 2, a blade frame 4 and movable split clamp 3 and clamped by pneumatic cylinders 12. The frame 4 is moved downwards in guides (7), Fig. 2 (not shown) first causing the lower blade 5 to co-operate with clamp 2 to shear the bar. Deflectors 17 preceding the upper blade 6 move the clamp 3 away from the clamp 2 to a position in which it co-operates with the blade 6 to shear the distorted portion (21) from the bar. Electromagnetic stops hold the clamp 3 in this position. The lower blade 5 has a curved cutting edge and the upper blade 6 is steeply raked. The clamps 2 and 3 have replaceable inserts (13), (14) (Figs. 3 and 4, not shown) to accommodate bars of different dimensions and cross-sections.
Patent GB-636859-A (GB)
Title: Improvements in or relating to rotary heat engines
IPC: F02G1/04
Filed: 1948-05-24
Abstract: 636,859. Cooling. HOWDEN & CO., Ltd., J., and BAILEY, W. May 24, 1948, Nos. 13938 and 24222. [Class 29] [Also in Group XXVI] A heat-engine installation comprises a hot-gas machine 2 and a cold-gas machine 1, both of the meshing-screw type and mechanically connected together to operate in phase, the installation including a number of heat-exchangers 3. Heat energy is applied to the circuit or power applied to the machines. Fig. 1 shows one arrangement in which the engine 2 and the compressor 1 are coupled by gears 6, 7, 8, the latter being integral with a shaft giving external power. The plant includes a heater 4, a cooler 5, a heat-exchanger 10, and a combustion chamber 9. The exchanger 3 absorbs heat from the gas as it passes from the engine 2 and returns this absorbed heat to the gas as it leaves the compressor 1. Fig. 10 shows one valving arrangement with stator valve slots 14 ... 17 co-acting with passages 21, 22, 20, 19 in a valve 11 leading to interlobe spaces of the male rotor. In a modification the ports in the stator and in the rotor are arranged axially. The total weight of gas in the system may be varied by addition or abstraction to vary the power output.
Patent GB-745551-A (GB)
Title: Improvements in or relating to the manufacture of sodium and potassium phosphates
Inventor: WARD ALFRED PETER
IPC: C01B25/30
Filed: 1953-05-18
Abstract: Aqueous solutions of sodium or potassium phosphate are prepared by feeding phosphoric acid and a slurry of sodium or potassium carbonate or bicarbonate to a closed reaction vessel to react there under pressure and thereafter discharging the reaction mixture as a stream, preferably atomized to a receiver, preferably a closed vessel, maintained at a lower gaseous pressure than the reaction vessel thereby disengaging the carbon dioxide and steam formed in the reaction, from the solution.  The proportions of the slurry and phosphoric acid fed are preferably such that a phosphate of mean empirical formula MaH3-aPO4 is formed in which <FORM:0745551/III/1> is from 0.5 to 2, M being Na or K.  The phosphoric acid solution suitably contains 50 to 60 per cent by weight of available P2O5 and the slurry may contain about 50 per cent by weight of soda ash.  As shown in the Figure, phosphoric acid and soda ash solution are fed by pumps 4 and 3 to a reaction vessel 5 in the form of a pipe 10 to 20 feet long.  An outlet valve 6 is adjusted to maintain a reaction vessel pressure of 10 to 30 p.s.i. above that of the vessel 9 into which the reaction mixture is discharged through nozzle 7.  A flow rate of 3 to 7 feet per second may be maintained in vessel 5.  The reaction mixture, discharging from nozzle 7 may be atomized by inpingement <PICT:0745551/III/1> on the walls or on a plate 8 and evolved gas is withdrawn at 13. The vessel 9 is provided with an agitator to assist disengagement of gases and the phosphate liquor leaves through pipe 14, if desired after being passed by pipe 17 to a vessel 12 similar to and operating at a lower pressure than, vessel 9.  Further evolved gas is removed at 15 and the phosphate liquor leaves by pipes 16 and 14.  The carbon dioxide is air free.  The process may be adjusted to produce orthophosphates of empirical formula M2HPO4,M3 PO4 and MH2PO4 in which the ratio of metal atoms to hydrogen atmos is 2 : 1, 5 : 3, 1 : 1 and 1 : 2 and intermediate values.