baber/WOPTO huggingface dataset:
Patent GB-1473842-A (GB)
Title: Mechanical calculator
IPC: G06G1/00
Filed: 1973-05-15
Abstract: 1473842 Mechanical calculator for aircraft navigation H P K DIBLEY 13 May 1974 [15 May 1973] 23071/73 Heading G4B A hand-operated calculator relating aircraft altitude and ground distance for a given flight path comprises two relatively movable members, e.g. discs 3, 5, one of which 5 is linearly calibrated 7 in ground distance, the other of which 3 has two sectors 8, 9 of altitude markings spaced according to different mathematical relations, so that juxtaposing the scales 7, 8, 9 on the two members 3, 5 enables ground distance and altitude to be related for two different parts of a given flight path. The altitudes scales 8, 9 may be linear to correspond to represent constant rates of descent or ascent and represent ranges above and below 10,000 ft., respectively, the scale 9 markings being more widely spaced to represent a lower rate of descent or ascent. A third sector 10 on the disc 3 separates the two altitude scales 8, 9 and shows no altitude change representing a level flight period for deceleration; a second version of scale 9 continuous with scale 8 corresponds to no deceleration period. The disc 3 also carries juxtaposed descent rate and ground speed scales and may have a non-linear scale to enable constant power calculations in the event of take-off. Non-linear altitude scale portions may be used to provide supersonic flight path information.
Patent GB-948455-A (GB)
Title: Method of and apparatus for drying solvent-containing materials while recovering the vaporized solvent
IPC: F26B25/00
Filed: 1960-07-01
Abstract: 948,455. Solvent recovery. H. KUBODERA. July 1, 1960 [Oct. 1, 1959], No. 23089/60. Heading B1B. Solvent is recovered from treated material, e.g. methanol, ethanol or gasoline is recovered from cloth, paper, yarn, rope or wire which has been treated with a solution of a synthetic resin, by conveying the material 1 up a tower 3 and passing hot drying gas, such as air, down the tower, and also injecting gas on to one or both sides of the material as it enters the tower in order to prevent the drying gas from flowing out through the inlet for the material. The solvent-laden gas flowing out of passage 42 near the base of the tower passes through tube 9 into cooler 11 where the solvent is condensed. The gas leaving the cooler is passed, by blower 18, to preheater 16, and is then divided so that part of the gas flows, via finish-drying tower 5, into the top of tower 3, and the remainder of the gas is introduced into the base of tower 3 through beak-tubes 21, 22 which provide a film of gas close to the material-to-be-dried immediately it enters the tower. The gas introduced through the beak-tubes flows to the outletpassage 42 via an adjustable opening, between shield-plates 39 and 40. Towers 3 and 5 are provided with steam-heated tubes h, and the side-walls are also provided with heating-tubes 63, 63<SP>1</SP>. The solvent-laden gas is cooled by water flowing through pipes c in cooler 11. The gas supplied to the beak-tubes may be passed, by blower 26, through cooler 28 and heater 25, whereby the solvent-content and temperature of the gas are controlled.
Patent GB-438863-A (GB)
Title: Improvements in or relating to respirators
IPC: A41D13/11
Filed: 1935-08-17
Abstract: 438,863. Respirators. BARTELS & RIEGER HERMET GES., 61, Ehrenstrasse, Cologne, Germany. Aug. 17, 1935, No. 23184. Convention date, Aug. 18, 1934. [Class 81 (ii)] A respirator g comprising a mask of natural, rubber, viscose, or other sponge is characterized by the provision of a pad a, lying on each side of the nose and sealing the space therearound, and by the provision of an exhaling valve in a fitting b, the resistance of the valve to air-flow being lower than that of the mask. The sealing action of the pad a may be assisted by providing a preferably flexible metal strap on the exterior of the mask. The valve fitting b may be provided with a mask-stiffening member c, preferably of filter paper. The mask may bear against the chin at its lower edge d as shown, or may pass beneath the chin in which case an internal wedge-shaped pad bearing on the chin may be provided. The securing straps h are passed round the neck beneath the ears. A cartridge e, containing noxious gas or like absorbing materials, or desiccating, cooling or other materials, may be removably secured in a socket in the lower portion of the mask. Two layers of the same or different materials may be used for the mask. The outer layer may be used in a moistened condition and may comprise a textile fabric.
Patent GB-1177552-A (GB)
Title: Hydrodynamic Braking Mechanism.
Inventor: UNDERWOOD HERBERT N
IPC: F16D59/00
Filed: 1967-05-18
Abstract: 1,177,552. Hydrodynamic brake. BORGWARNER CORP 18 May, 1967 [29 June. 1966], No. 23212/67. Heading F2E. A fluid motor 17, driven by a pump 15 supplying, fluid through a line 27, is braked by connecting in its fluid exhaust line 28 a variable restriction, comprising ball and spring 54, 55 and a seat 52, which provides a constant retarding force. Pressure in line 27 is applied also to an inlet port 64 of a valve 19 containing the variable restriction assembly so that the piston 44 is moved to the right until the reduced diameter section 45 connects the inlet port 63 receiving the motor exhaust fluid to an exhaust port 29. The motor 17 is then free to be driven by the inlet fluid at 20 from line 27, and to drive, for example, the cage 10 of a washing machine. Stopping of the pump 15 causes the piston to move to the left, and the motor 17 to be braked as stated, the exhaust fluid then leaving the valve 19 through port 29. Reversal of the pump 15 supplies pressure on line 26 to operate a locking device 18 to prevent any rotation of the motor 17, and also drives a further member 16 which may be the agitator of the washing machine.
Patent GB-307313-A (GB)
Title: Improvements in or relating to grinding mills
IPC: B02C4/36
Filed: 1927-09-05
Abstract: 307,313. MacCallum, A. E. G. Sept. 5, 1927. Roller and roller-and-breast mills.- In a fourmill grinding mill the lower rollers 3, 4 rotate about fixed axes and co-operate with a pair of rollers 1, 2, adjustable vertically as a pair relatively to the lower rollers and adjustable the one to the other. The paint &c. is fed between the rollers 1, 2 and is carried round to the rollers 3, 4 to be ground between the bars 5 and collected by a scraper 37. The upper rolls 1, 2 are mounted in a frame 9 slidable in guides in the main frame 8 and adjustable vertically by a screwed rod 10 operated by a worm and wormwheel through a hand-wheel 14. The bearings 18 for the upper rolls 1, 2 are mounted in guides 17 concentric with the axis of the lower rolls and are separated by plungers 19 and spring 20. The distance between the rolls 1, 2 is adjusted by plungers 35 movable by rods 33 connected to pivoted links 31. The upper ends of the links 31 are connected by screwed nuts to a rod 25 provided with threads 27, 38 of opposite pitch so that the links 31 and the bearings 18 may be moved towards or away from one another through the medium of a handwheel 26. In a modification the frame 9 and main frame 8 may be adjusted relatively to one another by means of a pair of wedges and the relative positions of the two upper rollers may be effected by a second wedge arrangement disposed at right angles to the first.
Patent GB-207276-A (GB)
Title: Improved process and apparatus for producing hydrocarbon compounds of lower boiling point from those of higher boiling point
Filed: 1922-08-28
Abstract: 207,276. Alexander, A. E., (U.S. Gasoline Manufacturing Corporation). Aug. 28, 1922. Float valves.- A levelcontrolling device for use in an apparatus for cracking oil comprises a piston valve 23 own the oil feed pipe 16, controlled by a float 112, operated by levers 107 having pivots 108 on the outer casing, and connected at one end by a pin-and-slot connection 111 to the float and at the other by rods 106 to a cross-bar 105 on the valve stem.
Patent GB-1461894-A (GB)
Title: Inflatable aerostat structure
IPC: B64B1/42
Filed: 1975-05-29
Abstract: 1461894 Balloons SHELDAHL Inc 29 May 1975 [30 May 1974] 23439/75 Heading B7W An inflatable tethered balloon comprises a body 11 with an inner ballonet 20 and a plurality of tail fins 12-15 each comprising an aerofoil having an inflated skin 16 formed on its upper and lower inner surface with chordally-spaced spanwise extending scalloped T-section webs 27 to which, at the apices of the scallops, are attached criss-crossed profile retaining catenary lines 28 and transverse lines 29. The connections between the lines and the webs 27 and the connection of the skin 16 to the skin of the body 11 are described with reference to Figs. 4, 5 and 6, not shown.
Patent GB-1089641-A (GB)
Title: Improvements in and relating to speed governing systems for steam turbines
Inventor: WATSON WILLIAM GEORGE
IPC: F01D21/00
Filed: 1964-06-05
Abstract: 1,089,641. Fluid-pressure servomotor systems. C.A. PARSONS & CO. Ltd. May 24, 1965 [June 5, 1964], No.23494/64. Heading G3P. The stop valve of a steam turbine is actuated by hydraulic pressure controlled by a speed governor valve 4 while valves 6, 7 responding to changes in condenser and stop valve pressure, respectively, automatically adjust the governor setting to correspond to reductions in turbine load. The pressure controlled by the valve 4 acts on the stop valve and on one side of a differential pressure gauge 26 in parallel with a non-return valve 29, the other side of the gauge and valve being subjected to the pressure controlled by the valves 6 and 7. The gauge controls a switch 27 for resetting the governor motor which due to the valve 29 maintaining a pressure differential, remains at the reduced load setting after the valves 6 and 7 have returned to their original positions, the governor being reset manually to restore the load on the turbine. Actuating pressure for the valve 7 is obtained from a point between a pair of orifice plates in the steam line while the valve 6 incorporates a valve which closes the connection to drain when the hydraulic pressure falls to a predetermined minimum value. In a modified system the governor valve controls a fire-resistant fluid which in turn controls the fluid for actuating the stop valve through a relay (34 Fig. 2, not shown), the relay containing two pairs of opposed bellows for actuating the relay valve (39) and a valve (45) providing accelerated response to rapid falls in governor controlled pressure
Patent GB-1401041-A (GB)
Title: Solvent recovery
IPC: D06B9/06
Filed: 1972-05-18
Abstract: 1401041 Combined evaporator/condenser KORES HOLDING ZUG AG 18 May 1972 [26 May 1971] 23525/72 Heading B1B [Also in Division F4] Volatile solvent is recovered from a coating on one side of a web 1 by passing the web over heaters 5 with the coated side facing away from the heaters, and condensing the resulting vapours with condensors 9 and 10. Roller 8 may have a cover of silicone rubber or P.T.F.E. to prevent sticking of the coating. In the embodiment of Fig. 5, the heater is in the form of a rotatable drum 45, and entry is made by the web to the drum past sealing strip 53, and resilient sealing strips 54a, 54b, and 54c. The web may be paper, textile or plastic or metal foil and the solvent may be organic or inorganic e.g. water.
Patent GB-1103663-A (GB)
Title: Preparations for cleaning copper
Inventor: THORNTON JAMES COWARD
IPC: C23F11/14
Filed: 1965-06-03
Abstract: A preparation for cleaning and imparting protection against tarnishing to an article of copper or alloys thereof comprises a 1,2,3-benzotriazole and an abrasive powder which has or achieved during manual polishing the particle of size less than 80 microns and which has a hardness of from 3 to 8 on the Moh's scale. Nitro- or alkyl- (e.g. containing from 1 up to 20 carbon atoms) substituted 1,2,3-benzotriazoles may be applied.  The abrasive powder may be aluminium silicate or alumina.  The preparations may be aqueous alcoholic suspensions (e.g. butanol, glycol monoethyl ether), aqueous detergent based compositions, aqueous hydrocarbon oil suspensions or hydrocarbon oil-based paste suspensions.  Dispersing agents and gelling agents such as bentonite clays, magnesium montmorillonite and cellulose derivatives may be used.
Patent GB-287584-A (GB)
Title: Improvements relating to retorts for the distillation of coal and similar carbonaceous substances
IPC: C10B1/04
Filed: 1926-09-25
Abstract: 287,584. Low Temperature Carbonisation, Ltd., and Parker, C. H. Sept. 25, 1926. Retorts. - In a vertical retort of the kind in which anum ber of f retort chambers a are formed in a single casting, each chamber is of oblong transverse section and so disposed in the casting that the adjacent (retorts have their adjacent lateral walls common only to the extent of half the width, as at a<1>. External angular cavities a<2> are thus formed, and each retort is heated on all sides excepting only the parts a<1> of the walls common to adjacent retorts. Flange plates are arranged at the top and bottom of the retorts each having strengthening webs such as c<1>, and slots may be formed in the plates for the reception of bolts securing a. hood to the upper plate and a cover to the lower one. Suitable dimensions for each retort are 44¢ by 11 inches at the top 5¢ by 12 inches at the bottom and 9 feet long.
Patent GB-1087534-A (GB)
Title: Laser cutting machine tool
IPC: B23K26/36
Filed: 1966-05-26
Abstract: 1,087,534. Cutting by lasers. KEARNEY & TRECKER CORPORATION. May 26, 1966 [Aug. 18, 1965], No. 23736/66. Heading B3V. [Also in Divisions G2, G3 and H1] A laser cutting machine for metal workpieces comprises a laser 39 which produces a collimated light beam 37 of circular crosssection, a beam shaping means 42 for changing the beam cross-section into rectangular form 45, and a movable work support 17. The latter is movable along guides 13, 14 by a reversible servomotor 18 which also drives a tachometer generator 19. The laser 39 is mounted on a cutting head 24 movable transversely by a reversible servomotor 32 which also drives a tachometer generator 33. The generators 19, 33 provide feed-back signals to the servo control system 55 which is itself controlled by a tape in cabinet 52 to provide both speed and position control signals. The laser 39, Fig. 4 (not shown), comprises a ruby rod (176) with a semi-transparent reflector (181) at one end and beam expanding lenses (182), (183) at the other end co-operating with a totally reflecting mirror (191). The laser is energized by a flash lamp (194) supplied from power source (59) controlled by the tape. Alternatively the laser may comprise a simple ruby rod with a total reflector at one end. The beam is changed into rectangular crosssection by the shaping means 42 comprising diffusing lenses (90), (91), Fig. 2 (not shown), a copper mask (115) with cooling fins (62) and converging lenses (111), (112). The beam shaping means 42 is mounted for rotation in bearings (70), (71) for maintaining the long edge of the rectangular beam in alignment with the cutting direction. Rotation is effected automatically by a servomotor 47 controlled by a resolver 50 which receives signals through valve amplifiers, Fig. 5 (not shown), from the tachometer generators 19, 33.
Patent GB-1405368-A (GB)
Title: Centrifugal speed governors for internal combustion engines
IPC: F02D1/10
Filed: 1973-05-18
Abstract: 1405368 Speed governors ROBERT BOSCH GmbH 18 May 1973 [20 May 1972] 23754/73 Heading G3B A speed governor for an I.C. engine comprises weights 12 acting on a sleeve 15 which after travelling a distance a against an idling spring 28 abuts an adjustable member 23 of a forcetransmission lever 21, 22 pivoted at 38 and moves a further distance under the influence of the main governor spring 42. The initial stress of the spring 42 determines the maximum speed of the engine and is adjustable by a bolt 47. The proportional range of the governor is determined by the orientation of the spring 42 which is adjustable by a rotatable pin 49. Movements of the governor sleeve are transmitted to the fuel control rod 56 via a ball and socket joint 57, levers 53, 54 and lost motion device 55. Also provided are a stop 41 for lever 22, an adjustable screw 75 for a second idling spring 73, a bi-metallic spring 77 for cold starts, and an adjustable screw 34 for altering the initial stress on the idling spring 28. Reference has been made to Specification 23755/73 and 23756/73.
Patent GB-349847-A (GB)
Title: Card index cabinet
IPC: B42F17/02
Filed: 1930-08-08
Abstract: 349,847. Card-index cabinets. MARCHAND, J., 4, Rue Cheik el Rehan, Institut d'Egypte, Cairo. Aug. 8, 1930, No. 23771. [Class 146 (i).] A filing-cabinet 1 for cardindexes is fitted adjacent to one or both longitudinal walls near the upper edge with a longitudinal rod 3 secured at its ends to the end walls of the cabinet, and the index cards 2 are provided with a vertical slot or slots 5 penetrated by the rod or rods 3, so that each card has a limited vertical movement into a position where it can be read or corrected. A longitudinal slot 6 may be formed in the bottom wall of the cabinet through which the fingers can be inserted to lift the required card 2.
Patent GB-877244-A (GB)
Title: Peroxides and a process for their manufacture
IPC: C07C409/20
Filed: 1958-07-23
Abstract: The invention comprises peroxides of the formula <FORM:0877244/IV (b)/1> in which Y is hydrogen or C1-C6 alkyl, X is chlorine or bromine, R1 is hydrogen or a C1-C10 monovalent radical, R2 is a C1-C10 monovalent radical or a divalent radical forming with the adjacent oxygen atom a 5- or 6-membered ring system, or R1 and R2 together with the oxygen atom adjacent to R2 form a 5- or 6-membered ring system, and R is hydrogen or a monovalent radical, or a radical of the formula <FORM:0877244/IV (b)/2> The monovalent radical R may be an aliphatic radical, preferably a tertiary alkyl radical containing 4 to 8 carbon atoms, or a substituted e.g. halogenated, aliphatic radical, or a heterocyclic radical.  Thus R may be t-butyl, t-amyl, or a monovalent radical having an indan, cumene, tetrahydro-naphthalene, p-menthane, or tetrahydrofuran nucleus. R1 and R2 as monovalent radicals may be the same or different aliphatic, cycloaliphatic, or aromatic radicals, or unsaturated aliphatic, substituted aliphatic, aryl, or heterocyclic radicals, e.g. they may be methyl, propyl, butyl, amyl, hexyl, cyclohexyl, b -chloro-ethyl, phenyl-ethyl, diphenyl methyl, phenyl, naphthyl, tetrahydrofurfuryl, or tetrahydropyranyl radicals.  The halogenated peroxides may be obtained by reacting at a temperature of minus 60 DEG C. to plus 70 DEG C. a vinyl ether of the formula <FORM:0877244/IV (b)/3> with a hydroperoxide of the formula R.OOH and with an organic hypohalite of the formula B.OX in which B is a straight-chain or branched alkyl radical or substituted alkyl radical having 2 to 10 carbon atoms e.g. t-butyl or t-amyl hypochlorite. Bis-(a -halogenacetal)-peroxides may be obtained by reacting 1 mol of hydrogen peroxide with 2 mols of a vinyl ether and 2 mols of organic hypohalite.  The hydrogen peroxide may be used as such or as a solution in an inert solvent, or it may be used in the form of an addition product with urea or silica. Sodium bicarbonate or other acid-binding agent may be present as a catalyst.  The halogenated peroxides may be used as polymerization and hardening catalysts in the production of unsaturated polyester resins and polyvinyl compounds.  Examples describe the production of 1(1-ethoxy-2-chloro-)ethyl t-butyl peroxide, 1(1-isobutoxy-2-chloro-)ethyl-t-butyl peroxide, a (b -chloro-tetrahydropyranyl) - t - butyl peroxide, 1(1-ethoxy-2-chloro-)ethyl hydroperoxide, bis-(1 - ethoxy - 2 - chloro - ethyl)peroxide, 1(1-isobutoxy-2-chloro-)ethyl hydroperoxide, and bis [a (b -chloro-tetrahydropyranyl)]peroxide.
Patent GB-171670-A (GB)
Title: Improved process for the reclaiming and recovery of coal from water or other liquids
IPC: B01D21/01
Filed: 1921-09-07
Abstract: 171,670. Holland, C. E. Nov. 13, 1920, [Convention date]. Liquids, treating ; electric endosrnose; carbon compounds, depositing; cells; supporting electrodes; electrolytes, circulating.- Finely divided coal and other organic matter such as hydrocarbons suspended in water are coagulated and precipitated by electrolysis. In the apparatus shown, water enters a tank 1 by a pipe 2 containing a valve, not shown, and flows over a cut-away part of one wall into a sloping channel 13 by which it is conducted to settling tanks or filterpresses. The tank has a lining 4 of hard rubber, glass or other insulating material, and a false bottom 8 which slopes downwards from the ends to the middle, where a drain-pipe is provided whereby matter precipitated within the tank may be removed. Carbon or metal electrodes 5, connected alternately to bus-bars 14, 15, are inserted in slots in the lining 4 and are supported by strips 7 of hard rubber or other material attached to the sides. The tank is strengthened by vertical strips held together by transverse rods. A voltage of 3 to 5 volts and a current density of 1 to 1¢ amperes per square foot may be used. The product is dried and used as fuel instead of pulverized coal. The treatment is applicable to the purification of creeks draining coal-mining areas.
Patent GB-753418-A (GB)
Title: Improvements in or relating to stirrups
IPC: B68C3/02
Filed: 1954-08-17
Abstract: 753,418. Stirrups. MARJIM HOLDINGS PTY., Ltd. Aug. 17, 1954 [Aug. 24, 1953], No. 23906/54. Class 62. In a safety arrangement in which a stirrup 14 is attached to a stirrup strap 9 by a latch which opens when the stirrup is inclined to the normal position, the latch comprises a metal plate 5 having an integral tongue 12 which passes through a slot in the stirrup and engages a retaining spring 15 riveted to the plate. If the stirrup is inclined relatively to the latch, it engages the lower edge 17 of the plate and urges the spring away from the tongue 12. An alternative construction formed by casting is shown in Fig. 6.
Patent GB-1501572-A (GB)
Title: Method and a device for the neutralisation and combustion of acid tar
IPC: C02F11/00
Filed: 1976-06-09
Abstract: In the process for treating acid tar by neutralisation and heat treatment, the neutralisation of the tar takes place in a mixing device (23) in which compounds of the alkaline earths having an alkaline reaction are added to the tar. The semisolid to solid reaction product being formed is subjected in a first stage to a carbonisation treatment at 350 to 500 DEG C in a carbonisation device (25). In a second stage, the resulting gaseous carbonisation products are burned in a chamber (20). In this way, a treatment of acid tar without pollution of the environment is achieved, wherein the carbonisation residues arising in the carbonisation device (25) are discharged in a solid form. <IMAGE>
Patent GB-1352636-A (GB)
Title: Method for producing shaped plastic articles
IPC: C08L67/06
Filed: 1971-04-19
Abstract: 1352636 Unsaturated polyester compositions ASHLAND OIL Inc 19 April 1971 [11 March 1970] 23945/71 Heading C3P Shaped plastic articles are produced by polymerizing a thermosetting resinous composition comprising as the oil phase a solution of an unsaturated polyester in a vinyl or vinylidene monomer cross-linking agent in a water-in-oil emulsion without breaking the dispersed nature of the emulsion so as to provide a thermoset solid in which the water phase substantially completely exists as closed-cell droplets of water dispersed throughout the solid, the waterin-oil emulsion also containing 0À1 to 10% by weight based on the weight of the oil phase of a surface irregularity inhibiting adjuvant which is a saturated C 12 -C 24  fatty acid, a saturated C 12 -C 24  fatty amide or a water-insoluble soap of a saturated C 12 -C 24  fatty acid. In the examples the compositions comprise unsaturated polyesters prepared from maleic anhydride, isophthalic acid, diethylene glycol and propylene glycol dissolved in styrene, cobalt octoate, dimethylaniline, water, zinc stearate and stearic acid and are polymerized using methyl ethyl ketone peroxide.