baber/WOPTO huggingface dataset:
Patent GB-1077873-A (GB)
Title: Colour photography employing colour couplers
IPC: G03C8/08
Filed: 1963-12-23
Abstract: Compounds of the formula <FORM:1077873/C2/1> and <FORM:1077873/C2/2> wherein R2 represents a substituted or unsubstituted alkyl or aryl group, a terpenyl group or a heterocyclyl group; R5, R6, R7, R8, R9 and R10 each represents a hydrogen atom, a chlorine atom, a substituted or unsubstituted alkyl or aryl group, a heterocyclyl group, an amino or substituted amino group, a carbonamido group, a sulphonamido group, a carbamyl group, a sulphamyl group or a carboxyl group; and W represents the non-metallic elements necessary to complete a 5- or 6-membered ring, are prepared by monoacylating the 4-hydroxy of a hydroquinone of the general formula <FORM:1077873/C2/3> OR <FORM:1077873/C2/4> if necessary protecting the 1-hydroxy group by means of a group which can be split off by, for example, catalytic hydrogenation after the acylation reaction. Specified compounds prepared in this manner are 1-hydroxy-4-stearoyloxy-2-naphthoic acid, 1-hydroxy-4-acetoxy-N-[d  - (2,4 - di - tert. - amylphenoxy) - n - butyl]-2 - naphthamide, 1 - hydroxy - 4 - acetoxy - N - n - octadecyl - 31,51 - dicarboxy - 2 - naphthanilide, and 6-acetamido-2-chloro-4-[2,4-tert.-amylphenoxy)acetoxy] -3-methylphenol.  5 - Acetamido - 4 - benzyloxy - 3 - chloro - 2 - methylphenol is prepared by refluxing 5- acetamido - 3 - chloro - 2 - methylhydroquinone with a -bromotoluene.  2 - Benzyloxy - 3 - chloro - 5 - [(2,4 - di - tert.- amylphenoxy)acetoxy] - 4 - methylacetanilide is prepared by reacting 5-acetamido-4-benzyloxy - 3 - chloro - 2 - methylphenol with (2,4-di -tert.-amylphenoxy)acetic anhydride.
Patent GB-1283552-A (GB)
Title: Vehicle having a tipping loading body provided with an automatically opening and closing tailboard
Inventor: PERLINI ROBERTO
IPC: B60P1/26
Filed: 1969-10-15
Abstract: 1283552 Tipping vehicles R PERLINI 15 Oct 1969 [2 May 1969] 50648/69 Heading B7B The tailboard 6 of a tipping vehicle is pivoted at 5 to the body 4. and has an extension 7 carrying a slotted link 12 engaged over a pin 11 on the vehicle chassis so that when. the body is tipped thetailboard 6 opens underits own weight. The invention may also be applied to pivoting sideboards.
Patent GB-1190158-A (GB)
Title: Preparation of Films of Polypivalolactone
Inventor: ACKER EDUARD MARIA ANTHONIUS A
IPC: B29C48/03
Filed: 1968-10-25
Abstract: 1,190,158. Making polypivalolactone films. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 25 Oct., 1968, No. 50769/68. Heading B5B. Polypivalolactone films are made by meltextruding the polymer into air through a die having a longitudinal slot extrusion orifice, drawing out the extruded melt at a drawdown ratio between 5 :1 and 500 :1 (preferably between 10 :1 and 200 :1) to form a film which is rapidly cooled to a temperature below 150 C., preferably below 100 C., in a sufficiently short time to produce a transparent film. The solidified transparent film is then stretched in one or more directions at a temperature between 20 and 200 C. (preferably between 125 and 200 C.) at such a stretch ratio that the elongation at break of the film after stretching, measured in the direction(s) of stretching and at room temperature is 10 to 200%, preferably 40 to 80%. The film is then annealed at a temperature between 110 and 220 C., preferably between 150 and 200 C., without applying stretch. The film may be allowed to shrink freely or to a certain extent, but is advantageously kept at a constant length during the heat-setting or annealing step. Thereafter the film is further stretched in one or more directions at a temperature between 100 and 220 C. and at a stretch ratio such that the elongation at break of the film after stretching, measured in the direction(s) of stretching and at room temperature is between 5 and 70%. In the example, a polypivalolactone having an intrinsic viscosity (determined in benzyl alcohol at 150 C.) of 1À10 decilitres per gram is melt-extruded at 285 C. through a die having an extrusion slot 15À7 mm. long and 0À2 mm. wide to form a film which is cooled and solidified by being passed through water at 15 C., the level of the water being 5 cm. below the die. The film is taken up at a speed of 6 m/min. and the draw-down ratio applied to the film during its passage from the die to the take-up roll is 26À5 : 1 (draw-down ratio 26À5:1). The clear 30 micron thick film obtained is stretched longitudinally at a temperature of 175 C. and a stretch ratio of 4 : 1 which imparts to the film elasticity and an elongation at break of about 70% when further stretched longitudinally at 175 C. The film is heat set at 180 C. for 8 minutes while held at constant length and is then stretched again at 185 C. and a stretch ratio of 1À5 : 1 whereby there is imparted to the film an elongation at break of 15% and a shrinkability of 35% at 180 C. By subsequent heat relaxation of the film at 180 C. free of tension the elongation at break of the film is increased to about 70%.
Patent GB-1462160-A (GB)
Title: Optical fibre cable
IPC: G02B6/44
Filed: 1975-12-18
Abstract: 1462160 Optical fibre bundle INTERNATIONAL STANDARD ELECTRIC CORP 18 Dec 1975 [27 Dec 1974] 51824/75 Heading G2J The optical fibres 10 are arranged loosely within a flexible tube 12 of thermoplastics material with a strengthening layer 18 of fibres or the like and an outer thermoplastics jacket 20. The tube 12 is preferably corrugated.
Patent GB-1393047-A (GB)
Title: Production of chlorinated carboxylic acids and esters
IPC: B01J27/00
Filed: 1973-11-09
Abstract: 1393047 Chlorinated carboxylic acids and esters SOLVAY & CIE 9 Nov 1973 [10 Nov 1972] 52050/73 Heading C2C Chlorinated carboxylic acids and esters of general formula wherein R 1 , R 2  and R 3  are H, Cl, F, alkyl or aryl but at least one is H and R 4  is H or optionally substituted alkyl or aryl, are prepared by chlorination in the liquid phase of under electromagnetic radiation and in the presence of a metal compound. The reactant is preferably acrylic or methacrylic acid or an ester. The catalyst is preferably a compound of a group Va metal, e.g. SbCl 5 . U.V. and/or visible radiation of 2000-5000 A is preferably used. In the examples 2,3-dichloropropionic acid and methyl 2,3-dichloropropionate are prepared.
Patent GB-1401482-A (GB)
Title: Electrical circuitry for providing a measure of frequency  of a cyclically-varying input signal
IPC: H03M1/86
Filed: 1972-11-10
Abstract: 1401482 Frequency to voltage converters KNORR-BREMSE GmbH 10 Nov 1972 [10 Nov 1971] 52142/72 Heading H3A A frequency to voltage converter comprises a first circuit 1, 2 responsive to an input signal U f  to provide first and second pulse trains U 1 , U 2  at the input frequency, an RC integrator 3, 4 responsive to the second pulse train U 2  for providing an intermediate signal U c  having a mean value proportional to the input frequency, a second circuit 5, 6 having a switch 20 responsive to the first pulse train U 1  for controlling the charging of a storage device 23 so that its output is proportional to the value of the intermediate signal U c  at a given point during each successive cycle of the input signal unless the value of the intermediate signal falls in between consecutive U 1  pulses i.e. due to a decrease in the input frequency. The first circuit includes first and second monostable devices 1, 2 responsive to the trailing edge of a respective applied signal. An output voltage U a  derived from the storage capacitor 23 is compared with the intermediate signal voltage U c  at an operational amplifier 18. If U a  is less than U c , the capacitor 23 charges up via the switch 20 during the pulses U 1  till equality is reached. If U c  becomes low or zero due to a decrease in input frequency or absence of input pulses U f , a transistor 19 is rendered conductive as to partially discharge capacitor 23 and U a  follows the variation in U c  even before the end of the operative cycle. In the steady state both transistors 19, 20 conduct temporarily to maintain the value of U a .
Patent GB-1176816-A (GB)
Title: A Semiconductor Voltage Generator Analog to Digital and Digital to Analog Conversion Device.
IPC: H03M1/00
Filed: 1967-11-16
Abstract: 1,176,816. Analogue-to-digital converters. BENDIX CORP. 16 Nov., 1967 [21 Nov., 1966], No. 52267/67. Heading G4H. In apparatus for converting an analogue signal to digital signals, or vice versa, the signals are balanced by being compared in a magnetic core, the flux due to the analogue signal being opposed by the flux due to the digital signals, there being means to indicate when a balance has been reached. In an analogue to digital converter the unknown input signal Ei is applied to a winding 1 and signals corresponding to the digital output are applied to windings 19, 19A, 19B, 19C. In a gap in the core is a Hall-effect plate 43 which is fed with current from source 47 and gives an output Eo proportional to this current and the flux in the core. The output is amplified in logic circuit 31 and used to set one of two Schmitt triggers according to its polarity. The outputs of the triggers are combined in an Or gate and used to gate clock pulses to a counter. The direction of counting is determined by which of the two triggers is set. The counter stages give digital signals representing the input signal and each controls a switch, adapted when closed to apply a unit current to the corresponding winding 19, 19A, 19B, 19C. These windings have a number of turns weighted 1, 2, 4, 8 so that the value in the counter represents in binary scale the total flux generated in the core by the four windings. The counter counts up or down until a balance is reached and then stops, the flux in the core then being zero and the Hall plate giving no output. Instead of weighted windings, weighted currents may be used, or a combination of both. Digital-to-analogue converters.-A similar core is used to provide a digital-to-analogue converter, the digital signals being applied to weighted windings, or as weighted currents, to generate a corresponding flux as above. The output of the Hall effect plate is applied to an operational amplifier the output of which is applied to the analogue signal winding to cancel the flux. The analogue output increases until a balance is reached and then remains steady.
Patent GB-1445729-A (GB)
Title: Method of modifying polymeric fibres
IPC: D06M101/16
Filed: 1973-11-12
Abstract: 1445729 Treating fibres M & T CHEMICALS Inc 12 Nov 1973 [27 Nov 1972] 52330/73 Heading B5B Polyester, polyamide, polyester-amide, polypropylene or polyethylene fibres are treated to improve one or more of the following properties, flame retardancy, dyeability, resistance to mildew, degradation by heat and/or light, and accumulation of static charges, by applying to the fibres during a drawing operation of a ratio of at least 2 : 1 a liquid organic modifier or a solid organic modifier dissolved or dispersed in a liquid which is a non-solvent for the polymer, in an amount of 1 to 20% by wt. of the fibres. The fibres are preferably polyethylene terephthalate and the modifier (1) (a flame retardant) an aromatic phosphine oxide or a halogenated aromatic phosphate, (2) a quaternary ammonium compound, (3) (an anti bacteria agent) organotin, organomercury or organoantimony compounds.
Patent GB-1410147-A (GB)
Title: Device for adjusting the position of an inductor supplied with very-high-frequency current
Inventor: DEFOSSE GEORGES
IPC: H05B6/30
Filed: 1973-11-13
Abstract: 1410147 Inductor ELPHIAC SA 13 Nov 1973 [13 Nov 1972] 52574/73 Heading HIT [Also in Divisions H2 and H5] A VHF coil 5 used for zone melting of a seed 12 can be moved in a plane under vacuum. Vacuum enclosure 1 is attached by flange 2 to stainless steel or bronze flexible and fluid tight bellows 3. Coil 5 is attached to a movable bush 4 by elongate arms, said bush being secured to dovetailed slides (6, 7) which move in perpendicular directions thereby effecting the movement of the coil. Connections to coil 5 from a VHF generator (not shown) are made through pairs of bar terminals 8, flexible copper sheeting 10 and pairs of bar terminals 9, both 8 and 9 being perpendicular to the plane of movement. Coil 5 is cooled by water carried through thin flexible pipes 11.
Patent GB-1284435-A (GB)
Title: Device for clamping a cutting insert to a seat of a toolholder body
IPC: B23C5/22
Filed: 1969-10-30
Abstract: 1284435 Milling cutters FAGERSTA AB 30 Oct 1969 [22 Nov 1968] 53090/69 Heading B3K An indexable insert 12 in a milling cutter is locked in position by means of a screw 21, the head portion 22 of which has a frusto-conical surface 24 arranged on tightening of the screw to make contact first with the insert 12 and on further tightening, accompanied by flexure or tilting of the screw, with a reaction surface 25 formed on the body 10 of the cutter. As shown, clearance may be provided on the screw threads to facilitate tilting of the screw.
Patent GB-1430051-A (GB)
Title: Sound detection
IPC: G01S3/808
Filed: 1973-11-15
Abstract: 1430051 Acoustic direction-finders ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES ELF 15 Nov 1973 [22 Nov 1972] 53105/73 Heading H4D The direction of a sound source relative to a measuring base comprising two spaced sound detectors is determined by forming the auto- and cross-correlation functions of the detector output signals and deducing from these functions the time-displacement of the output signals. An example of the method is described in which the direct or recorded outputs of two microphones or sound-level meters are bandpass filtered, then amplified and correlated. The correlation functions are displayed on a C.R.O. and a plotting table. The directions of coherent noise sources are computed from the time differences between the auto-correlation timeorigin and the peaks of the cross-correlation function. The contribution of a particular sound source to the total sound power received is evaluated by measuring the ratio of the corresponding peak amplitude of the cross-correlation function to the geometric mean of the amplitudes at the time-origins of the autocorrelation functions. If direction is measured for various frequency band-widths, the sound detector spacing is made inversely proportional to band-width to maintain the direction resolution constant.
Patent GB-1262410-A (GB)
Title: Improvements relating to tape readers
Inventor: SOANES SIDNEY VINCENT
IPC: G06K7/10
Filed: 1970-11-11
Abstract: 1,262,410. Tape readers. FERRANTI Ltd. 11 Nov., 1970 [4 Dec., 1969], No. 53639/70. Heading G4M. A mask 10 over which a punched tape passes between a light source and photodetectors has apertures 11 shaped so as to be completely covered by the tape web between perforations in adjacent data positions, thereby improving the light/dark ratio.
Patent GB-1496334-A (GB)
Title: Handling workpieces
IPC: G01N35/04
Filed: 1974-12-13
Abstract: 1496334 Feeding and transferring plastic workpieces on endless conveyers MONSANTO CO 13 Dec 1974 [14 Dec 1973] 53928/74 Heading B8A Plastics workpieces 144 are successively loaded between jaws 20 of conveyer carriers at a station 72. At a station 74, the jaws 20 of a series of ten carriers are simultaneously downwardly deflected to release the workpieces to respective sockets 146 of a conveyer 142 which moves step-by-step through a heat-transfer chamber 136. The jaws 20 move downwardly under the action of springs 36 when a bar 64 is outwardly deflected by the action of a solenoid valve 130 (Fig. 1) acting on a parallel linkage of which the bar 64 forms a part. The bar 64 deflects a latch 62 (Fig. 3) against the action of a spring 58 to release the jaws 20. The released workpieces are guided into the sockets 146 by respective shoots 192 (Fig. 3), each of which has a back wall 163 adjustable by a set screw 168. A front wall 182 common to all the shoots is pivotable at 184, and if deflected by the action of a workpiece being badly seated in a socket 146, will operate a microswitch 194 to render solenoid 130 ineffective, and stop the conveyer 142. Unloaded workpieces are then discharged successively by the action of a disc 102 (Fig. 2) causing them to pass successively to a shoot 198. A side wall 176 of each shoot 192 is adjustable (Fig. 5, not shown) by means of a screw (178) and elongated slot (180). A member (24) (Fig. 4, not shown) on each respective pair of jaws 20, engages a cam 134 (Fig. 1) to cause the jaws to be reset prior to arriving at the feed station 72. In a modification (Fig. 6, not shown), the jaws 20 are replaced by a deflectable platform, and a fixed casing 70.
Patent GB-1375981-A (GB)
Title: Duplicating apparatus
IPC: B41C1/14
Filed: 1971-11-22
Abstract: 1375981 Rotary mimeographic duplicating machines AB DICK CO 22 Nov 1971 [15 Dec 1970] 54171/71 Heading B6C In a rotary mimeographic duplicating machine an original to be copied is passed in contact with stencil film material through a thermal imaging station. From this station the "used" original is rejected into a tray 38 by a rotary transfer cylinder which passes the now imaged film to an ink filled rotary stencil cylinder 36 carrying a pneumatic clamping means 39 by which the film is held on the stencil cylinder until the required number of copies have been printed. In the operation of the machine, a master cam 475 (not shown), rotates through one revolution and effects sequential operation of machine functions to feed the original and stencil film, which is fed in web form, thermally image the stencil film, transfer an end of the imaged stencil to the mimeograph cylinder and cut off the proper length of stencil material, strip the original from the transfer cylinder and place the machine in readiness for the print cycle. The sheet, i.e. the "original", transfer apparatus and the sheet, eject apparatus of the machine are the respective subjects of Specifications 1,375,983 and 1,375,982.
Patent GB-1249950-A (GB)
Title: Improvements in the fixing of pipes in grooves
Inventor: ROEMER WILLY EMIL
IPC: F16L3/04
Filed: 1969-11-05
Abstract: 1,249,950. Clips. W. E. ROEMER and T. ROEMER [trading as ELRO-PRODUKTE, W. E. ROEMER & CO.]. 5 Nov., 1969 [19 Nov., 1968], No. 54227/69. Heading E2B. Pipes are held in slots in masonry by U- shaped spring clips of steel strip whose limbs are bent back to form barbs Kk which grip the walls of the groove. The extremities of the barbs may be serrated for better grip.
Patent GB-1458299-A (GB)
Title: Non-circular watch case
IPC: G04B37/05
Filed: 1974-12-16
Abstract: 1458299 Watch cases SUWA SEIKOSHA KK 16 Dec 1974 [18 Dec 1973] 54266/74 Heading G3T In a non-circular watch case having a glass 21 retained or carried by a case body 24, and a rear cover 22 which is retained by a spring 25 fixed to the cover to engage an inner surface 24a of the body, removal of the cover is facilitated by a means such as a projection 22b, formed on the cover. The projection is adjacent a strap lug 24b on the body and serves as a fulcrum for a tool. As shown the glass is fixed to the body by adhesive but an overlapping flange may be provided on the body, pressing the glass against a gasket (47), Fig. 5 (not shown) provided between the glass and a frame (48) adjacent the dial 32. A battery 35 and magnetic shields 33, 34 are within the case. The surface 24a is inclined, thus causing compression of sealing gasket 26, and the groove 22a which houses the spring 25 can pass right through the wall of the cover.
Patent GB-1457278-A (GB)
Title: Beta-amino carbonyl catalysts for polyurethane preparation
IPC: C08G18/00
Filed: 1973-11-26
Abstract: 1457278 Polyurethanes UNION CARBIDE CORP 26 Nov 1973 [27 Nov 1972] 54763/73 Heading C3R Cellular polyurethanes are prepared by reacting an organic polyisocyanate with a polyether polyol having a hydroxyl number of 20 to 1000 in the presence of a blowing agent and an amine catalyst comprising a beta-amino carbonyl compound having the formula wherein Y is an oxygen or nitrogen atom and, when Y is nitrogen, the remaining valence thereof is satisfied by a bond to a second group; p and q each has a value of zero or one, provided that p + q is one; m is an integer of from 1 to 4, provided m is two when q is one: R 3  and R, are hydrogen or C 1-4  alkyl and Q is an alkoxy group having 1 to 8 carbon atoms, a 2-[N,N-di(C 1-4 alkyl)- amino]ethoxy group or an N,N-di(C 1-4 alkyl)- amino group provided that each alkyl is methyl when q is zero. Numerous examples are given of suitable catalysts but those preferred are ethyl - 3 - (N,N - dimethylamino)propionate; ethyl - 3 - (N,N - diethylamino)propionate; 2 - (N,N - dimethylamino)ethyl- 3 - (N<SP>1</SP>,N<SP>1</SP>- dimethylamino)propionate; 3-dimethylamino- N,N - dimethylpropionamide; 3 - dimethylamino - 2 - methyl - N,N - dimethylpropionamide; 3 - diethylamino - N,N - dimethylpropionamide; 3 - dimethylamino - N,N - dimethylbutyramide; 3 - (N - morpholino)- N<SP>1</SP>,N<SP>1</SP> - dimethylpropionamide and N,N<SP>1</SP>- piperazino - bis[3 - (N<SP>11</SP>,N<SP>11</SP> - dimethylpropionamide]. The beta amino carbonyl catalysts may be used in conjunction with known amine and/or organo-tin catalysts. Conventional reactants and additives may be used in the foamforming reaction mixture.
Patent GB-1422228-A (GB)
Title: Device for adjusting the thickness of a zinc coating on a  metal sheet
IPC: C23C2/20
Filed: 1973-11-27
Abstract: 1422228 Air-knife apparatus for hot-dip galvanizing ITALSIDER SpA 27 Nov 1973 [27 Nov 1972] 54964/73 Addition to 1341766 Heading C7F In an air-knife apparatus of the kind described in Specification 1341766 wherein the air nozzle comprises a rigid upper lip 23 and a flexible lower lip 24 allowing for adjustment of the nozzle height, there are provided two side shutters 90, 91, sliding in said nozzle against the lips thereof so as to allow continuous variation in width of the fluid jet during the coating operation. Manual or automatic means may be provided to keep the nozzle of equal width to the strip, and also centred therewith.
Patent GB-1459110-A (GB)
Title: Trawlers
IPC: B63B35/16
Filed: 1974-12-19
Abstract: 1459110 Stern trawlers ATELIERS ET CHANTIERS DE LA MANCHE 19 Dec 1974 [28 Dec 1973] 55049/74 Heading B7A A stern trawler has an inclined passageway 9 leading from a stern ramp 7 obliquely forwards to a trawl winder 8 to accommodate a trawl when casting or hauling it in and an upper deck above the passageway 9 on which is located a winch 1 having side drums 1a, 1b for trawl tow cables 2a, 2b which pass through pulleys 6a, 6b or 6c, 6d in accordance with the width of the trawl being used. The pulleys depend from arms 5a, 5b of a gantry 4 which carries a block 26 for handling the trawl. Fish are dumped from the trawl into areas 14a, 14b and then moved on a conveyer 15 to a sorting table 16 and finally into a hold 17. The conveyer 15, table 16 and trawl winder are undercover beneath the upper deck. The otter boards of the trawl 4a, 4b or 24a, 24b are hung off the stern or stowed against the side bulwarks respectively as shown.
Patent GB-1315618-A (GB)
Title: Elements for connecting tubular parts
IPC: F16L27/10
Filed: 1971-11-29
Abstract: 1315618 Pipe couplings DAIMLER-BENZ AG 29 Nov 1971 [1 Dec 1970] 55204/71 Heading F2G A butt joint for a vibration resistant junction piece has separate recessed flanges 1, 2, cooperating with flanges 8, 9, on an elastomeric sleeve 7, to slightly compress them against the abutting surfaces. The flanges 1 and 2 are bolted to the parts 5 and 6 and the sleeve 7 may have two rigid liners 16 on a single flexible liner (16, Fig. 3, not shown).