baber/WOPTO huggingface dataset:
Patent GB-732730-A (GB)
Title: Improvements in or relating to apparatus for the optical projection of stereo-diapositives
IPC: G03B35/20
Filed: 1952-10-15
Abstract: 732,730. Optical projection apparatus. KIRCHHOFF, K. Oct. 15,1952 [Oct. 20,1951], No. 25900/52. Class 97 (1). In a projector for stereoscopic diapositives movable optical members are used to vary the separation of the optical axes in the vicinity of the diapositives and inclined aspherical, preferably toroidal, reflectors are used to reflect light from a source through the diapositives. In the form shown, diapositives are located in apertures 4 in a carrier 3, illuminated by a single lamp 2 and projected by lenses 15, 16. Polarising or anaglyphic filters 30, 31 are mounted in a disc carrier 32 rotatable to a position where, to provide for non-stereoscopic projection, an open aperture is in front of one lens the other being obscured by the disc. Glass blocks 18, 19 can be pivoted about axes 22, 23 by a sliding rod 24 to adjust the separation of the optical axes. Each illuminating system comprises condenser lenses 9, 10 and an aspherical reflector 5 which may be a lens silvered on its curved, aspherical surface. Alternatively the condenser lenses and reflector may be replaced by an inclined meniscus lens silvered on its rear face.
Patent GB-1179676-A (GB)
Title: An Apparatus for Cutting Out Wrappers or Binders each Composed of at least Two Leaf Portions
IPC: A24C1/04
Filed: 1968-05-30
Abstract: 1,179,676. Cutting cigar wrappers. ARENCO A.B. 30 May, 1968 [9 June, 1967], No. 25913/68. Heading A2C. An apparatus for cutting a cigar wrapper composed of two or more leaf portions positioned in a predetermined, mutual orientation, which apparatus is provided with a number of cutting dies movable in a closed path past leaf applying, cutting and delivery stations, is characterized in that the cutting dies comprise at least one group of two or more cutting dies 6, 7, each die in a group designed to cut its respective leaf portion and arranged one after the other in the direction of movement of the dies, and that a leaf portion collecting means is arranged to receive in succession at the delivery station the two or more leaf portions intended to form a wrapper, receiving them in a position relative to the cutting dies which is determined by the predetermined, mutual orientation of the said leaf portions. A horizontal rotor 5 carries two groups of two cutting dies 6, 7 on each of which, in turn, a tobacco leaf is placed and held by suction and, after rotation of the rotor through 90 degrees, is cut by rolls (16) mounted on a reciprocable carriage 15. On a further 90 degrees rotation of the rotor 5, the cut leaf (i.e. half wrapper) is deposted on one of four suction heads 13 mounted by arms 12 and vertical rods 11 on a vertical rotor 8. The rotor 8 is rotated through 90 degrees on every two such rotations of the rotor 5, thus two complementary half wrappers are deposited on each head 13 in turn. An applicator 24 applies adhesive to the edge to be joined of the first half wrapper before the second half wrapper is deposited thereon. After rotating through 180 degrees, each head 13 carrying a joined wrapper is raised and the wrapper is picked up by a suction carrier 27 for transfer to an adjacent cigar wrapping machine. In another embodiment, the dies 6, 7 are mounted on a vertical rotor 5 and the suction heads 13 are mounted on a horizontal rotor 8, transfer of the cut leaf portions being effected by raising plungers 19 within the dies 6, 7.
Patent GB-1146834-A (GB)
Title: Record tape spooling apparatus
Inventor: BROOKES ROGER LEONARD WINFIELD
IPC: G11B15/43
Filed: 1965-06-18
Abstract: 1,146,834. Tape spooling arrangements. INTERNATIONAL COMPUTERS Ltd. 17 June, 1966 [18 June, 1965], No. 25929/65. Heading G5R. An arrangement for spooling intermittently at a high rate a punched paper or magnetic tape 11 supplied at a lower average rate is arranged so that the tape is first fed into a reservoir 12 and thereafter passes through a pair of braking rollers 17, 18, which exert a constant retarding force on the tape, to the wind-up spool 19. The spool is driven from a constant speed motor 26 via a clutch 27, which is controlled by a signal from photo-electric arrangements 32, 31 in accordance with the amount of tape in the reservoir. If the reservoir is full no signal is obtained from 31 and the motor drives the spool with sufficient power to overcome the brake. If, however, the reservoir is not full the clutch is controlled so that the spool is driven only sufficiently to prevent reverse movement caused by the retarding effect of the brake. The roller 18 which is part of the braking: system is coupled to an electromagnetic hysteresis brake which has a speed/braking torque characteristic such that the retarding force exerted by the roller 18 on the tape is constant. A tachogenerator 21 also coupled to the roller provides a signal to the clutch control such that as the linear tape speed tends to increase, for example as the tape diameter on the roll 19 increases, the driving speed is reduced. The tape is thus driven at constant speed as well as constant tension. Further photo-electric arrangements 33, 34 may be positioned towards the mouth of the reservoir, to provide a clutch control signal such that the tape is in fact driven, but only slowly, when some tape is in the reservoir. When the beam to the other cell 31 is intercepted, the drive is speeded up.
Patent GB-643085-A (GB)
Title: Improvements in or relating to rotary toolholders, particularly dentist's handpieces
IPC: A61C1/14
Filed: 1947-09-24
Abstract: 643,085. Dental handpieces. LAGES, C. A., and MATHER, R. Sept. 24, 1947, No. 25956. [Class 81(ii)] A rotary toolholder comprises a body, a rotary spindle mounted therein, a control member which is slidable axially relative to the spindle, locking means operable by the control member to hold the spindle against rotation, and a clutch device which is interposed between the spindle and its driving means and which is operated by the control member to disconnect the drive to the spindle when the locking means is effective. As shown in Fig. 2, a dental handpiece comprises a body sleeve 10 secured by screws 42 to a body 18 over which is a slidable tubular control member 11. Within the body is journalled a spindle 25 to which is secured at the front end a ball race 23 and at the rear end a clutch member 28 which is adapted to be engaged by a corresponding member 31 of a driving mechanism. When the control member is in the position shown in the upper half of the figure the clutch is engaged. When the control member is retracted to the position shown in the lower half of the figure the head 40 of the tool chuck is exposed, a toothed collar 41 on the control member engages teeth 23b on the ball race 23 and prevents rotation of the spindle and the drive member 31 is disengaged from the clutch member 28. The control member has slots in which the screws 42 ride, the slots being L-shaped to form a bayonet catch and each having one limb 43a extending substantially longitudinally of the tool and a second limb 43b extending circumferentially thereof. A spring 27 is provided to locate the spindle and to minimise end play. Specifications 643,139 and 643,140 are referred to.
Patent GB-988556-A (GB)
Title: Improvements in vertical take-off and landing aircraft
IPC: B64C29/00
Filed: 1963-07-01
Abstract: 988,556. VTOL aircraft. DORNIERWERKE G.m.b.H. July 1, 1963 [July 3, 1962], No. 25970/63. Headings B7G and B7W. An aircraft supported by jet lifting engines arranged symmetrically with respect to the longitudinal axis is provided with a pluraliity of containers (e.g. for fuel) which may be selectively jettisoned to correct a rolling moment caused by an engine malfunction or failure. As shown in Fig. 1 the aircraft has two main engines 3 with movable nozzles to provide lift and propulsion, and two lifting engines 5 in tip nacelles 4. The jettisonable containers may form streamlined nose and tail portions of the nacelles (Figs. 4 and 4, not shown), or may be contained within them (Figs. 2 and 3, not shown). They may be jettisoned either by their own weight or by compressed gas or explosive cartridge. The weight of one of the containers is preferably equal to or smaller than the thrust of one of the lifting engines 5.
Patent GB-248423-A (GB)
Title: Improvements in and relating to a nozzle for spraying fluids for internal combustionengines and for other purposes
IPC: F02M67/00
Filed: 1924-10-31
Abstract: 248,423. Barnard, J. H. Oct. 31, 1924. Cam and lever-actuated pumps; stroke, varying.-The fuel pump 95 of an internal combustion engine has its piston rod 93 bent at 300 to engage a slot 301 in a lever 65 pivoted at 306 and rocked by means of a cam 63 bearing against a roller 309. The cam may be shifted along the shaft 53 by means described in Specification 231,326 so as to bring various profiles into contact with the roller 309 to vary the timing and stroke of the pump.
Patent GB-931908-A (GB)
Title: Improvements in dredging equipment
IPC: E02F3/94
Filed: 1961-07-18
Abstract: 931,908. Suction dredgers. SOC. GRENOBLOISE D'ETUDES & D'APPLICATIONS HYDRAULIQUES SOGREAH. July 18, 1961 [July 20, 1960], No. 26028/61. Class 68 (1). In a suction dredging system the suspension drawn up through a suction pipe 2 is discharged into an inclined tube washer 4 feed with water by a separate pump 10 and in this washer stones and gravel pass down against the current of this water through the washer into a storage space 8 whilst light and fine materials are carried up the washer to a grid 12 that allows of the removal of floating materials before the light and fine materials are separated in a battery of cyclone separators 15.
Patent GB-350826-A (GB)
Title: Device for expelling ballast water contained in a torpedo head at the end of the travel thereof
IPC: F42B19/40
Filed: 1930-09-01
Abstract: 350,826. Torpedoes. SILURIFICIO WHITEHEAD DI FIUME SOC. ANON., Fiume, Italy. Sept. 1, 1930, No. 26068. Convention date, Aug. 30, 1929. [Class 9 (ii).] Relates to apparatus for discharging ballast from the head of a torpedo when its speed falls below a predetermined value, in order to bring the torpedo to the surface at the end of its run, the ballast being ejected by compressed air when a valve is opened. According to the invention, the valve is under the control of a member subjected solely to hydrodynamic action after release by a catch at a predetermined depth. In the form shown, when the torpedo reaches a given depth after it is launched, a hydrostat 27 is depressed and rocks a catch 15 releasing a member 14 pivoted at 13. This member is subject to hydrodynamic pressure which keeps it depressed while the torpedo runs; but when the speed falls below a predetermined value, a spring 17 turns the member 14 outwards and a cam thereon opens the valve 9 which admits compressed air from a reservoir 5 to the ballast head 1 of the torpedo. The ballast water in this head is expelled through ducts 30, 34 fitted with non-return valves 31, 35, the valve 35 being flush with the surface of the torpedo. The member 14 may be provided with a projection 38 to intensify the hydrodynamic pressure on the member.
Patent GB-1155402-A (GB)
Title: A calibrator for an Unbalance Analyser
IPC: G01M1/00
Filed: 1966-06-10
Abstract: 1,155,402. Measuring rotor unbalance electrically. ABEX CORP. June 10, 1966 [June 11, 1965], No.26076/66. Heading G1N. In order to facilitate the calibration of the engine unbalance analyzer disclosed in Specification 1,145, 502 further signals are generated (in a separate calibrator unit) from the spark plug reference signal. These signals are injected into the front and rear vibration pick-up circuits, their amplitude and phase being manually adjusted so as to cancel the pick-up signals thus simulating a perfectly balanced engine. Known out-of-balance masses are then added to the engine and the gain and phase shift in each channel of the analyzer adjusted to give the correct output readings. The injected signals are obtained by applying the signal from the spark plug channel to two resolvers (210, 210', Fig. 5 not shown) one for the front and one for the rear measurement channels so as to provide manually adjustable phase-shifting differentiating the output to ensure that the amplitude of the signal varies with frequency to simulate the signal from the velocity pick-ups in Specification 1,145,502 and then providing outputs from manually adjustable potentiometers (214, 214').
Patent GB-760187-A (GB)
Title: Furnace electrode joint
IPC: H05B7/14
Filed: 1954-09-09
Abstract: 760,187. Furnace electrodes. UNION CARBIDE & CARBON CORPORATION. Sept. 9, 1954 [Sept. 11, 1953], No. 26088/54. Class 39(3) Carbonaceous electrodes 10, 11 are joined together by an externally threaded nipple 12 provided with reservoirs 14 of fusible carbonaceous material, e.g. pitch, and channels 16 extending therefrom to the threads. The amount of pitch &c. employed, when melted and carbon. ized, is such as to spread over and bond 10 to 25 per cent of the total threaded surface of the nipple. Caps 15 prevent the pitch flowing from the ends of the reservoirs. In further embodiments the nipple has a capped reservoir extending along most of its length, and channels extend therefrom either to the threads adjacent the centre of the nipple or to threads adjacent the ends. Reference has been directed by the Comptroller to Specification 670,162.
Patent GB-828378-A (GB)
Title: Method for dehydrogenation of organic compounds and catalyst therefor
IPC: C07C5/32
Filed: 1957-08-20
Abstract: Organic compounds are dehydrogenated in the presence of a catalyst comprising 30 to 45 weight per cent magnesium oxide, 10 to 35 weight per cent ferric oxide, 3 to 6 weight per cent chromium sesquioxide or cupric oxide, and at least 30 weight per cent potassium carbonate. The ingredients of the catalyst are mixed, pelleted, dried and heated at 1050 DEG  to 1300 DEG  F.  The organic compound, which may be a mono-olefin having 4 to 10 carbon atoms, or an alkylbenzene or alkylpyridine with 1 to 4 alkyl groups, each group having 6 or less carbon atoms with at least one alkyl group of 2 or more carbon atoms, is contacted with the catalyst at 1050 DEG  to 1300 DEG  F. with a steam to olefin ratio between 5 to 1 and 30 to 1 by volume.  The catalyst may be a fixed bed or fluidized.  In examples catalysts are prepared and used to dehydrogenate butene-2.
Patent GB-1188388-A (GB)
Title: Improved Clevis
Inventor: ROBERTSHAW MICHAEL FIRTH
IPC: F16G11/00
Filed: 1967-06-07
Abstract: 1,188,388. End attachments for cables. M. F. ROBERTSHAW. 20 Aug., 1968 [7 June, 1967], No. 26270/67. Heading D1T. Each of the load-carrying arms 1 of a clevis comprises a stack of superimposed relatively thin spring steel leaves held together by means of a core member 2 and an external retaining cap 3. Contoured protuberances formed in the leaves are surrounded by a circlip 4 and engage complementary depressions in the core member 2. Coaxial circular holes 11, 12 in the arms 1 are adapted to receive a headed pin, and a pin retaining leaf spring 14 and anti-rattle leaf spring 15 are provided. The core member 2 has a screw-threaded bore 2a for connection to a rod or cable.
Patent GB-380936-A (GB)
Title: Improved flushing tank for railway carriages, public latrines or domestic use
IPC: E03D1/16
Filed: 1931-09-21
Abstract: 380,936. Siphon discharge waterwaste-preventers. CASTON, E. A. and CASTON, A. J., 3, Prospect House,Mazagaon, Bombay, India. Sept. 21, 1931. No. 26338. [Class 26.] In siphon-discharge waterwaste-preventers of the type which comprises an upper tank A siphonically discharging into a larger lower tank B, which is thereby intermittently discharged through a siphon D, the tank A is wholly enclosed within the tank B and the siphons C, D are each formed of a pipe which is flattened to assume a substantially rectangular cross section. The tank A is fed from a valved pipe G. and the top plate thereof serves as a cover-plate for the tank B. Both tanks are vented to the atmosphere.
Patent GB-800143-A (GB)
Title: Foundry moulds and cores
Inventor: ASTON JACK
IPC: B22C1/16
Filed: 1955-09-14
Abstract: 800,143. Moulding-processes. ROLLSROYCE, Ltd. Sept. 14, 1956 [Sept. 14, 1955], No. 26359/55. Class 83(1). Moulds or cores are made by forming from a refractory, e.g. zircon, which is moistened with an aqueous solution of sodium or potassium silicate, hardening by the action of CO 2 , applying to the hardened-mould or core acidhydrolysed ethyl silicate dissolved in an inflammable solvent whereby the solution is absorbed in the structure, and burning-off the solvent. The solvent may be ethyl alcohol, acetone, or iso-propyl alcohol, and there may be repeated applications of the hydrolysed ethyl silicate solution with subsequent burning- off of the solvent, followed by firing of the mould and thereafter further application of the solution and burning-off of the solvent. The silicate solution for damping the refractory may contain ammonia, up to 3 per cent by weight, to accelerate hardening, and alternatively, or in addition thereto may also include glycerol, up to 5 per cent, and sugars such as glucose and molasses, up to 10 per cent, or resins (soluble or miscible in the silicate solution), 1+3 per cent. The invention may be applied to the lost-wax-process, the pattern being given an initial coating of fine refractory, and dusted with a coarse refractory before investment. The burning-off of the solvent then serves to remove the wax &c. pattern, final traces being removed by firing at 700-1000‹ C. Specification 770,527 is referred to.
Patent GB-188161-A (GB)
Title: Improvements in and relating to portable electric battery lamps
IPC: F21L4/00
Filed: 1921-10-06
Abstract: 188,161. Rombach, T. Oct. 6, 1921. Battery lamps. - In a portable electric battery lamp, the lamp bulb 7 and reflector 8 are carried at the end of a movable arm 4 which is adapted by its movement to operate a switch to open or close the lamp circuit. The front of the battery casing 1 is left free and may be used for holding a watch, mirror, writing pad or other useful article or for advertising purposes. The arm 4 passes through a slot in the top of the casing 1 and is pivoted on a pin secured to the casing. In its forward position the end of the arm 4 bears against a contact strip so completing the lamp circuit. When the lamp bulb is pushed back the end of the arm 4 leaves the contact strip and so breaks the lamp circuit. The lamp is provided with means by which it may be supported on a table or suspended on a wall.
Patent GB-1118427-A (GB)
Title: Epoxy resin sealing compositions
IPC: C08G59/50
Filed: 1966-06-14
Abstract: A cured epoxy resin which may be used in sealing is obtained by mixing together: (a) 100 parts by wt. of an epoxy novolac resin; (b) at least a stoichiometric equivalent of an aliphatic polyamine which is a curing agent for (a); (c) at least 15 parts by wt. of a para-monoalkyl monohydric phenol in which the alkyl group contains at least 4 carbon atoms, and (d) an inert extender which is present in an amount sufficient to reduce the acid absorption of the cured resin to not more than 4% by wt.  The epoxy novolac resin, which may be prepared by reaction of a phenolformaldehyde condensate with epichlorohydrin may have an epoxide equivalent of 172-179, a M.W. of 378-385 and a viscosity of 1400-2000 centipoises at 50 DEG  C.  The phenol which may be p-nonyl phenol may be used at 15-70 parts by wt. Examples of inert extenders are SiO2, which may be used at between 40 and 240 parts by wt., and a liquid petroleum derived resin, composed of polynuclear aromatic hydrocarbons, which may be used at between 40 and 90 parts by wt.  Mixtures of the above may also be used. Diethylene triamine is a suitable polyamine curing agent.  In addition to components (a) to (d) above, from 20 to 45 parts by wt. of polystyrene resin may be present in the composition.
Patent GB-1437791-A (GB)
IPC: G01N25/70
Filed: 1973-06-04
Abstract: 1437791 Testing gases; measuring gas parameters electrically WESTINGHOUSE ELECTRIC CORP 4 June 1973 [16 June 1972] 26447/73 Headings G1B G1N and G1S] [Also in Division H1] A device for measuring the density, extent of contamination by air, or the dew point of a gas comprises a Hilsch type vortex tube having a chamber 42 to which the gas is admitted under pressure via inlet 36 and conduits 38, 40, the gas being separated into a hot portion and a cold portion in the vortex, an exit tube 46 for the hot portion, an exit tube 26 for the cold portion, and a thermocouple 24 for measuring the temperature of the cold portion. The cold portion enters the tube 26 via an aperture 44 in a diaphragm 20, and the exit of the tube 46 is partially closed by a diaphragm valve 18 or by a fixed obstruction Fig. 3, (not shown). The surface of thermocouple 24 away from the device is flat and polished. In use, the temperature of the cold portion of the gas is related to the density of the gas in inlet 36. The dew point of the gas is determined by increasing the pressure of the inlet gas until the cold gas portion cools the thermocouple sufficiently for dew to form on its flat polished surface. The device may be used to determine the density and dew point of sulphur hexafluoride gas used in a circuit breaker. The density is related to the amount of air contaminant in the sulphur hexafluoride and the amount of air may be measured directly by comparing the temperature produced by the air contaminated sulphur hexafluoride at the thermocouple 24 with the temperatures produced by pure air and pure sulphur hexafluoride. A photo-electric system may be provided to detect the formation of dew and may actuate a temperature recorder. The device may be arranged in a portable case adapted to be connected to the sulphur hexafluoride circuits in circuit breakers Figs. 8, 9, (not shown) or may be permanently fixed in a circuit breaker Figs. 10, 11, (not shown).
Patent GB-671354-A (GB)
Title: A process in the manufacture of starch from mill starch
IPC: C08B30/04
Filed: 1947-10-01
Abstract: 671.354. Starch. AKTIEBOLAGET SEPARATOR. Oct. 1, 1947 [Oct. 16, 1946; Dec. 21, 1946], Nos. 26488/47 and 26490/47. Drawings to Specification. Class 121 In a method of treating maize starch milk containing fibres and gluten, in which the starch milk is first subjected to a separating operation to separate it into two components, one of which, the underflow, contains most of the starch and the second of which, the overflow, contains fibres and gluten and some starch, and in which the starch underflow is diluted and subjected to a second separating operation to separate out an overflow containing some starch and most of the fibres and gluten, the overflow from the first separation is subjected to centrifugal treatment, which may be effected in two stages in continuous operating centrifugal separators, to obtain a concentrate rich in starch at least some of which is entrained in gluten, which step may then be followed by chemical or mechanical treatment for freeing impurities adhering to the starch before the concentrate is fed to a centrifugal purifier and there subjected to an additional centrifugal separation which is relativelyprolonged as compared with said centri-- fugal concentrating operation, and which provides a greater selective separating ability than said concentrating operation,. to recover the starch from the mixture.