baber/WOPTO huggingface dataset:
Patent GB-1252640-A (GB)
IPC: G05B19/35
Filed: 1969-04-08
Abstract: 1,252,640. Programmed control of machine tools. HYPER-LOOP Inc. April 8, 1969 [July 22, 1968], No. 17745/69. Heading G3N. Servo control apparatus responsive to the error between a programmed position and an actual position of a movable member comprises means for detecting error between pulses representing the incremented programmed position and the actual position of the member and means for combining the error signal and a signal dependent on the rate of change of programmed position with respect to time to derive a signal for controlling the servo-drive for the member. As shown, a clock generator 10, controlling the timed sequence of operations of the numerical control equipment, feeds pulses to resetting counters 12, 16. The counter 16 also receives trains of pulses, dependent on sense of desired movement, on lines 18, 19 from a pulse generator 20 responsive to a command apparatus 21. The overflow pulses from counters 16 are fed to a position detector 23 wherein they are compared in phase with actual position pulses from a resolver 24, connected to a machine drive 30, fed with overflow pulses from the counter 12. The detector 23 produces a D. C. signal, representing in sign the required direction of movement, which is fed to a servo control 26 together with a signal from a detector 36 sensing the rate of change of the programmed position information from the pulse generator 20. The servo control 26 controls the machine drive 30 and a speed feedback to the control 26 is derived from a tachogenerator 32.
Patent GB-1265423-A (GB)
IPC: G03C8/08
Filed: 1970-04-28
Abstract: 1,265,423. Feeding sheets. SINGER CO. 28 April, 1970 [2 May, 1969], No. 20267/70. Heading B8R. Apparatus for separating, in seriatim, the top ply 95 from a pile 10 of flexible fabric plies, comprises a plurality of rotatable members having friction surfaces, e.g. two adjustably positioned torque separator units having pneumatically operated rotatable fabric twisters 60, the members each being rotatable about an axis intersecting its friction surface and said top ply and being movable relative to said pile 10 into and out of engagement with the pipe, at least two of said rotatable members being rotatable in opposite senses by a predetermined amount when engaging the pile to displace an edge of the top ply 95 from the remainder of the pile, means being provided for selectively clamping the pile in the locality of the displaced edge. The torque separator units and a spring-biased plate 52 may be mounted on a pneumatically operated, vertically movable frame 32 whilst the clamping means, comprising two pneumatically operated piston cylinders 73, 74, having clamping plates 76, are mounted on a fixed frame 23. The pile table 11 may be raised as the pile diminishes by an hydraulic or pneumatic actuator controlled by a pile height sensing finger 89. In operation, the movable frame 32 descends until a sensing finger (80), Fig. 1 (not shown), touches the top of the pile, the spring- biased plate 52, which is vertically adjustable, engaging the topmost ply 95 before the two fabric twisters 60. The twisters then rotate, e.g. about vertical axes, through angles of up to 90 degrees, depending on the nature of the fabric, thereby causing an edge of the top ply 95 to lift, the remainder of the ply being held down by the plate 52. Finally the clamps 76 descend to clamp the remaining plies, and the twisters 60 and plate 52 are raised to allow a vacuum head (94), Fig. 10 (not shown), to remove the top ply 95. The twisters 60 may have rubber friction coatings. The operation of the torque separator units 5, movable frame 32 and clamping means 76 is controlled by solenoid valves and time delay relays in an electro-pneumatic circuit, Fig. 12 (not shown). The pressure of air applied in the circuit may be varied.
Patent GB-1265507-A (GB)
IPC: H01H51/28
Filed: 1969-11-05
Abstract: 1,265,507. Magnetic contact devices. SIGMA INSTRUMENTS Inc. 5 Nov., 1969 [9 Dec., 1968], No. 54320/69. Heading H1N. A sealed magnetic reed contact device has change-over contact set comprising a magnetic reed 13 co-operating with fixed magnetic contact members 17, 28 of different lengths sealed in the glass envelope 10 at the opposite end to the reed 13. On energization of a surrounding coil the reed 13 disengages the longer member 28 and engages member 19. The movable reed contact end may be cranked (Fig. 2, not shown).
Patent GB-1266393-A (GB)
IPC: F16J9/14
Filed: 1969-10-20
Abstract: 1,266,393. Piston rings. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. 20 Oct., 1969 [24 Oct., 1968], No. 51430/69. Heading F2T. An oil scraper ring 1 for the piston of an I.C. engine is provided with at least one bimetallic element 2, Fig. 1, for expanding the ring with decreasing piston temperature during operation of the engine. The arrangement prevents excessive oil consumption under no-load conditions. In Fig. 3, the bi-metallic element 5 is fitted across the ends of the ring 1. In another embodiment the bi-metallic element joins the ends of a helical expansion spring and in a further embodiment, the bi-metallic element is in the form of a single or a series of leaf springs.
Patent GB-1266686-A (GB)
IPC: H03M7/08
Filed: 1968-07-18
Abstract: 1,266,686. Code converters. MARCONI CO. Ltd. 26 June, 1969 [18 July, 1968], No. 34221/68. Heading G4H. An optical code translator consists of 2 selectively interconnected sets of light paths. The two sets may comprise individual or paired optical fibre light guides or a single set of optical fibres from which the sheathing has been removed at selected points. An electrical input may energize selected light sources coupled to the input ends of light guides and photodetectors may be associated with the output ends of a second set of light guides or with the selected points on the first set of light guides. Binary to decimal and vice versa conversion may be performed.
Patent GB-1289282-A (GB)
IPC: B65B43/18
Filed: 1970-02-25
Abstract: 1289282 Feeding articles to be packaged L TASSI A BALLESTRAZZI and G TOSARELLI [trading as SITMA SOC ITALIANA MACCHINE AUTOMATICHE Snc di TASSI BALLESTRAZZI E TOSARELLI] 25 Feb 1970 [26 Feb 1969] 9091/70 Headings B8C and B8S Books, magazines, or gramophone records are stacked at 7 by a conveyer 4, and the lowest article in the stack is transferred periodically by means of a suction gripper to a conveyer 31 which leads to a packaging machine. The gripper is in the form of a drawer 15 on which the stack rests and whose perforated upper surface is connected via a valve 28 to a vacuum pump 30. A cam 18, acting through a lever 21 and rod 22, reciprocates the drawer so that on each advance stroke, the lowest article is brought within reach of an idler roller 33 which is lowered by a cam 42 so that the conveyer 31 can draw the article from the stack. During each advance stroke the valve 28 connects the pump 30 and drawer 15. Photo-cells monitor the stack 7 and appropriately stop and start the conveyers 4 and 31 according to the number of articles in the stack. The side walls confining the stack are adjustable to accommodate different widths of article, and a screw 13 varies the width of a discharge gap 14 to accommodate different thicknesses of article.
Patent GB-1290875-A (GB)
IPC: B27L11/00
Filed: 1969-09-26
Abstract: 1290875 Hogging and flaking wood D L JOHNSON 26 Sept 1969 1890/72 Divided out of 1290873 Heading B5L Undesirable limbs, flares and protuberances are hogged from the side of a mass of wood simultaneously with the cutting of flakes from, and the surfacing of the mass of wood, and the hogged material is then discharged separately from the flakes. A cutterhead for cutting flakes from wood comprises a rotatable disc type flaking and surfacing head 24 removably supported on a hogging head 22 which is detachably mountable on a driven shaft 36. A method and cutterhead are described which are identical with those disclosed in the Specification 1290873.
Patent GB-1295065-A (GB)
IPC: G09F27/00
Filed: 1969-11-13
Abstract: 1295065 Audio-controlled lighting effect S B ELLIOTT 13 Nov 1969 [25 Nov 1968] 55707/69 Heading A6M [Also in Division G2] In apparatus intended to provide a varying visual display which alters in character according, for example, to the type of music signal produced from a gramophone 1 or tuner 2 and an amplifier 3, and which comprises a light source 4, polariser 6, birefringent element 7, analyser 15 and a display screen 18 all arranged along an optical path, the signal is used to control the extent of rotation of element 7 about an axis normal to the optical path, thereby providing variable retardation of the light and varying the colour of the display. The element 7 may be wholly of birefringent material or may carry design elements of such material, and other partly or wholly birefringent discs 11, 12 may be disposed in the optical path, being static as in Fig. 4 (not shown) or rotated at a speed determined by the music signal. Discs 11 and 12 may also include dyed or inked portions, and an arrangement is described, Fig. 3 (not shown), in which the discs are mounted on arms both connected to an eccentric link driven by a motor whereby the discs are reciprocated across the optical path while rotating. The polariser or analyser may be rotated at variable speeds, e.g. in Figs. 3 and 4 (not shown), and may comprise design elements of oriented polarising material. Incorporation of a further birefringent filter 24 with stress lines normal to those of element 7 provides a variable intensity grey background. As shown in Fig. 1, the signal from amplifier 3 is fed to a pulse rate counter controlling the extent of rotation of element 7, e.g. via a d'Arsonval type of meter drive, and also to an audio amplifier 21 driving motors Ml and M2 to rotate discs 11 and 12 at variable speeds.
Patent GB-1295696-A (GB)
IPC: C07C31/22
Filed: 1970-02-12
Abstract: 1295696 Polyols EASTMAN KODAK CO 12. Feb 1970 [12 Feb 1969 14 April 1969] 6842/70 Heading C2C Polyols of formula are prepared by catalytic hydrogenation . of furodioxoles of formula where R<SP>1</SP> and R<SP>2</SP> are C 1-10  alkyl. The alkanol of formula R<SP>1</SP>R<SP>2</SP>CHCH 2 OH is formed simultaneously. In examples, 3, 3-dimethyl- 1,2,4- butanetriol and isobutanol are prepared. The polyols in which R<SP>1</SP> is C 1-10  alkyl and R<SP>2</SP> is C 2-10  alkyl are claimed per se.
Patent GB-1296496-A (GB)
IPC: C07C49/798
Filed: 1970-03-19
Abstract: 1296496 Diacyl butenes BADISCHE ANILIN- & SODA-FABRIK AG 19 March 1970 [21 March 1969] 13224/70 Heading C2C Diacyl butenes of formula where R<SP>1</SP>, R<SP>3</SP>, R<SP>4</SP> and R‹ are H or C 1-40  hydrocarbyl and R<SP>2</SP> is C 1-40  hydrocarbyl, and the hydrocarbyl radicals may be joined in pairs to form 5- or 6-membered rings and may contain oxygen atoms as hetero atoms, said oxygen atoms being present in hydroxyl, carboxyl, ether, ketone or ester groups, are prepared by reacting an allyl alcohol at 50-350‹ C. and 100 mmHg to 10 atmos. pressure with a diacylacetic ester of formula where R<SP>6</SP> is C 1-4  alkyl. Examples prepare 1,1- diacetyl - 4,8 dimethylnona - 3,7 - diene, 1,1 - diacetyl - 5 - ethylnona - 3 -ene, 1,1 - diacetyl - 4 - phenylbut - 3 - ene, 1 - benzoyl - 1- acetyl - 3 -  cyclohexylidenepropane, 1 - isobutyryl - 1 - acetyl - 4 - methylhex - 3 - ene, 1,1 - diacetyl - 4,8,12 - trimethyltrideca - 3,7,11- triene, 1-formyl - 1 - acetyl - 4,8 - dimethylnona - 3 - 7 - diene, 1,1 - diacetyl - 4 - methylpent - 3 - ene and 1,1 - diacetyl - 8 - hydroxynona-3-ene.
Patent GB-1297060-A (GB)
IPC: H04N5/202
Filed: 1970-03-13
Abstract: 1297060 Television RCA CORPORATION 13 March 1970 [21 March 1969] 12151/70 Heading H4F Relates to television camera circuitry that combines the function of video signal gamma correction with shading correction (required due to camera optics or tube non-uniformities) and/or pedestal height adjustment (i.e. adjustment of the black signal level with respect to the reference blanking level) without varying the white level peaks of the video signal. Basically the circuit comprises a nonlinear network including a plurality of diodes to which the video signal is coupled together with control signals that alter the conduction of the diodes such that in addition to being gamma corrected the video signal is altered in accordance with these control signals. In Fig. 1 gamma and shading correction are effected. The video signal 11 clamped and clipped at black level is applied via input 12 to nonlinear alternating network 21-31 in which gamma correction is effected, the resistors 24- 31 being selected such that diodes 21, 22 and 23 conduct at successively higher video signal levels. Shading modulation correction is accomplished by superimposing a composite shading correction waveform on the biasing potential appearing at terminal 40, such waveform being derived via potentiometers 41-44 from sawtooth and parabolic waveform generators operating at vertical and horizontal scanning rates. The shading and nonlinear gamma corrected video waveform 63 and an attenuated linear video waveform 19 are combined in such a manner that, by proper adjustment of the wiper arm potentiometer 64, the video output waveform 66 has a shading and gamma correction of any power law between the 0.4 power I law of the nonlinear network and the unity power law of the linear video waveform 19. In colour television the circuit is used in all three video channels. In Fig. 3 gamma correction and pedestal height control are effected. A clamped video signal applied to input 71 is coupled via transistor 72 to nonlinear network 77-91 in which gamma correction is effected, the operation of which is controlled in response to D.C. black level control voltages coupled to terminals 94 and 95, transistors 33, 34 and 35 being connected as a feedback amplifier as in Fig. 1. The low impedance input circuit of differential amplifier 32 allows the various black level control voltages to be matrixed. In order to maintain the pedestal component of the video signals at a desired level, either the video signals or the image produced therefrom on a monitor, are observed and compared with a reference, the black level control voltages being controlled in response to this comparison. The resistors 82/91 are selected so that the diodes 77-81 cut off prior to peak white levels under all conditions so that the peak white level does not change. The two circuits of Figs. 1 and 3 may be connected in series, i.e. output 65 to input 71.
Patent GB-1304230-A (GB)
IPC: F16L33/22
Filed: 1970-09-28
Abstract: 1304230 Hose couplings AUTOMOTIVE PRODUCTS CO Ltd 26 Aug 1971 [28 Sept 1970] 46090/70 Heading F2G In a hose end fitting, a gland nut 22 is screwed into a tubular member 10 so that an initially cylindrical rim 23 on the nut is urged radially inwards by a frusto-conical surface 16 on the member 10 to embed into and grip a hose 18 about an insert 17. As shown, the insert 17 is received in the hose end and abuts, at a flange 19, against an abutment in the bore of the member 10 formed by a reduced bore portion 11. Hoses and flexible tubes of nylon with or without external braided or wrapped reinforcing filaments or threads may be connected to the end fitting.
Patent GB-1305722-A (GB)
IPC: F17C3/02
Filed: 1970-05-29
Abstract: 1305722 Cryogenic containers CONCH INTERNATIONAL METHANE Ltd 14 May 1971 [29 May 1970] 26035/70 Heading F4P An off-shore cryogenic container comprises an outer wall 1 which has a lower part 1a formed from bulk concrete of such a weight as to overcome the floatation forces of the sea. Inside the wall 1 is a layer of insulating material 2 which, adjacent the lower wall part 1a, is of a thickness which results in the outside of wall part 1a being of a temperature at least as low as the freezing point of the sea. The frozen water thus provides an effective seal for the container. Upper part 1b of wall 1 is of metal and the roof 4 has a suspended ceiling 5 which fits the mouth of a lining 3.
Patent GB-1311545-A (GB)
Title: Semi trailers or similar vehicles having support legs
IPC: B60S9/12
Filed: 1970-11-09
Abstract: 1311545 Semi-trailer landing gear CRANE FRUEHAUF TRAILERS Ltd 9 Nov 1970 53179/70 Heading B7J A semi-trailer has a support leg 1 comprising an hydraulic ram 2, 3, 4, 5, 6, 10, having a piston 4 reciprocable in a cylinder 2, the ram being surrounded by an inner tube 14 secured to the piston 4 via the piston-rod 5 and an outer tube 17 slidable over the tube 14 and secured to the cylinder at 3, the tubes, preferably being of non-circular section to prevent relative rotation, the ram being secured at one end to the underside of the semi-trailer and having at its other end a foot 11 adapted to contact the ground when the leg is in a vertical position and the ram is extended. The hydraulic ram is made to extend by applying hydraulic fluid above the piston 4 pressurized by the action of pressurized air in an hydraulic fluid reservoir and prevented from retracting under load by closing an orifice in the hydraulic fluid system preventing loss of fluid from the ram. The support leg is retracted by opening the orifice and turning-off the pressurized air the hydraulic fluid is then forced back as a spring 7 in the ram cylinder 2 expands, it being compressed-on lowering of the leg. A hand-operated hydraulic pump is also provided.
Patent GB-1328348-A (GB)
Title: Heat exchangers
IPC: F28F9/02
Filed: 1969-11-19
Abstract: 1328348 Tubular heat exchangers FISONS Ltd 4 Nov 1970 [19 Nov 1969] 56539/69 Heading F4S In a heat exchanger comprising a plurality of U-shaped tubes 3 extending into a duct 2 from a tube plate 1, an annular inlet header 7 is arranged to surround a cylindrical outlet header 6 or vice versa, the wall of the inlet header 6 passing through an opening in the closed end 8 of the surrounding outlet header 7. The opening is provided with a gland 9 so that the walls of the headers can move relative to one another to accommodate differential expansion whilst remaining in sealing engagement. The tubereceiving holes in the plate 1 are arranged in two portions viz a central portion 4 and an annular surrounding portion 5. The two portions 4 and 5 may be separate parts capable of movement relative to one another.
Patent GB-1330872-A (GB)
Title: Pressure gauge
IPC: B60C23/00
Filed: 1970-11-17
Abstract: 1330872 Tyre pressure gauge and inflator B L GUY and W S CAMPBELL 17 Nov 1970 54632/70 Heading G1L A pressure gauge comprises a tubular body 17 movable relative to a support 14 between a first position (shown) and a second position in which it may cause a tyre valve 12 to open, a piston 32 disposed in the tubular body and movable in response to fluid pressure when the tubular body 17 is in its second position, a sealing means 35 on either the piston or tubular body sealing the passage through the body only when the body is in the second position, there being means to indicate pressure in accordance with the position of the piston in the body. A combined pressure gauge and tyre inflator mounted on a tyre valve stem 10 has a support 14 with a tubular body 17 slidable between upper, as shown and lower Fig. 3 (not shown) positions, the movement controlled by balls 23, 24 slidable in grooves 19, 20 respectively in body 17. Also supported within support 14 is a plunger 37 for depressing the tyre valve, biassed, to the inoperative position shown, by spring 41. When in use as a pressure gauge Fig. 3 (not shown) body 17 is depressed and face 46 depresses plunger 37 to open the tyre valve, exposing piston 32 to the tyre pressure and 'O' ring 35 seals the piston to body 17. When used as an inflator, a pin (45), Fig. 2 (not shown) on an air chuck (44) depresses piston 32 which moves plunger 37 to open the tyre valve, the body 17 remaining in its upper position.
Patent GB-1331706-A (GB)
Title: Cyclopropane derivatives and biologicall active compositions thereof
IPC: C07H15/04
Filed: 1971-04-23
Abstract: 1331706 Cyclopropane derivatives SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 20 April 1972 [23 April 1971] 11029/71 Heading C2C [Also in Division A5] Cyclopropane drivatives of formula wherein Hal represents a halogen atom; R 1  and R 2  each represents an alkyl group; R 3  represents a H atom or an alkyl group; and R 4  represents a cyano group, a carboxyl group or a salt, ester or optionally mono-N-substituted amide thereof, or an esterified thiocarboxyl group, with the proviso that when Hal represents a chlorine atom, R 1  and R 2  each represents a methyl group, and R 3  represents a hydrogen atom, then R 4  is other than a carboxyl group or a methyl, ethyl or benzyl-furfuryl ester thereof are claimed perse. The cyclo propane derivatives wherein R 4  represents an alkyl ester of a carboxyl group may be prepared by a process which comprises reacting an ester of an α# unsaturated carboxylic acid of formula wherein R represents an alkyl group, with a compound capable of yielding a dihalocarbene. The compounds wherein R 4  represents a carboxyl group are prepared by hydrolysing the corresponding alkyl ester under aqueous acidic or basic conditions. The salts of these compounds wherein R 4  represents a carboxyl group are obtained by neutralizing the acid with the appropriate base. Esters of those compounds wherein R 4  represents a carboxyl or thiocarboxyl group are obtained by preparing an acid halide of formula wherein X represents a halogen atom and reacting this halide with the appropriate compound containing a hydroxy or mercapto group in the presence of a hydrogen halide acceptor. Optionally mono-N-substituted amides of those compounds wherein R 4  represents a carboxyl group are obtained by reacting an acid chloride with ammonia or the appropriate compound containing a primary amino group. The compounds wherein R 4  represents a cyano group are obtained by dehydrating the corresponding amide using phosphorus pentoxide.
Patent GB-1336721-A (GB)
Title: Food container
IPC: B65D21/02
Filed: 1970-01-12
Abstract: 1336721 Lever tabs for containers MONO CONTAINERS Ltd 8 Jan 1971 [12 Jan 1970] 1407/70 Heading B8D A lidded container for mousse is opened by levering a tab 17 provided on either the container 11 or lid 16 so that a snap-fit rib 14 may be freed from a recess in the lid 16 or container. Rims 14, 15 form nesting shoulders for nested stacks of containers and lids prior to assembly. Horizontal movement of stacked lidded containers is prevented by a lid ridge 19 locating within a container ridge 13 of an upper lidded container. The lid top 18 and container bottom 12 may be flat. The lid and/or container may be formed from sheet plastics material, e.g. polystyrene or injection moulded. The lid or lid and container may be transparent. The lid may be formed from transparent sheet polystyrene and the container may be formed from white sheet polystyrene.
Patent GB-1341069-A (GB)
Title: Smoking materials
IPC: A24B15/12
Filed: 1971-09-24
Abstract: 1341069 Reconstituted-tobacco compositions BRITISH-AMERICAN TOBACCO CO Ltd 21 Aug 1972 [24 Sept 1971] 44721/71 Heading A2C The compositions contain a proportion of substantially water-insoluble wet-cross-linked cellulosic fibres which retain the fibrous form of the original cellulose raw material, prepared, as described in Specification 1236313 (Division C3), by wet-cross-linking fibres of a water-soluble carboxymethyl cellulose salt, said salt having from 0.4 to 1.6 carboxymethyl groups per anhydroglucose unit, the wet-crosslinking being performed before, during or after the carboxmethylation. The said cellulosic fibres may comprise 2-50% and preferably 5-25% by weight of the final smoking material. The tobacco is extracted with water, the fibrous residue formed into a pulp or slurry, mixed with the said cellulosic fibres, formed into a sheet by casting or by a paper-making process, and the tobacco extract, after concentrating, applied to the formed reconstituted tobacco sheet.
Patent ID-24454-A (ID)
Inventor: MOFFETT ROBERT H
IPC: D21H17/65
Filed: 1998-10-23
Abstract: Modified starches prepared by cooking an amphoteric or cationic starch and certain polyacrylamides have improved performance in paper making if a soluble aluminum compound also is present.