baber/WOPTO huggingface dataset:
Patent GB-1203702-A (GB)
Title: Processes for the preparation and isomerisation of nitriles
IPC: B01J31/24
Filed: 1968-11-06
Abstract: 1,203,702. Process for the production and isomerization of nitriles. E. I. DU PONT DE NEMOURS & CO. 6 Nov., 1968 [6 Nov., 1967; 28 Oct., 1968], No. 52561/68. Heading C2C. Organic nitriles may be prepared by hydrocyanating an unsaturated organic compound having olefinic carbon-carbon unsaturation and containing from 2 to 20 carbon atoms, by reacting the organic compound with hydrogen cyanide in the presence of, as catalyst, a compound of cobalt or rhodium in which the cobalt or rhodium has an effective valence of from 0À25. to 1.75. The invention also comprises processes for isomerizing 3-pentenenitrile to 4-pehtenenitrile and 2-methyl-3-butenenitrile to 3-pentenenitrile by contacting them with catalysts of the above type; the isomerization processes may be employed to form preferred starting materials for the hydrocyanation reaction. Both the isomerization and hydrocyanation reactions may be effected at a temperature of from - 25 C. to + 200 C. in an inert solvent and a catalyst promoter is preferably present; in the hydrocyanation reaction a phosphite is also advantageously present. The catalyst employed may be that obtained by treating a rhodium or cobalt compound, in which the effective valence of the rhodium or cobalt falls outside the above range, with sufficient of a reducing or oxidizing agent to bring said effective valence within the range 0.25 to 1À75, a preferred group of catalysts having the formula (Z 3 M<SP>1</SP>) 3 MX, wherein Z is R or OR, R is an alkyl or aryl group having up to 18 carbon atoms, M<SP>1</SP> is P, As or Sb, M is Co or Rh and X is halide or CN. The unsaturated starting materials employed in the hydrocyanation reaction may be mono-olefins, such as ethylene, propylene, butene-1, butene-2, pentene-2 and hexene-2, which may be substituted with, for example, cyano, aldehyde, ester and ketone groups, diolefins such as butadiene, and styrene. In Example 54 tetrakis (triphenyl phosphite) cobalt hydride is prepared by reacting cobalt nitrate with triphenyl phosphite followed by treatment of the product with sodium borohydride.
Patent GB-1519040-A (GB)
Title: Shuttles and shuttleboxes for looms for weaving
IPC: D03J5/00
Filed: 1976-12-22
Abstract: 1519040 Looms SCHMEING INTERNATIONAL Ltd 22 Dec 1976 [23 Dec 1975] 52736/75 Heading D1E  In a loom having a slay C, extending between shuttle boxes B one at each side of the loom, and across which, in use, a shuttle A is reciprocated, each shuttle box B is formed with a recess with a luminous or contrastingly coloured disc 3 therein and the shuttle A is formed with a recess which houses a further luminous or contrastinly coloured disc 2, the discs 2, 3 being so positioned that the alignment of the disc 2 with the discs 3 indicates that the shuttle is travelling correctly.
Patent GB-1120116-A (GB)
Title: Electro-mechanical device for producing an operation signal on a machine
Inventor: HENDERSON BERNARD ARTHUR
IPC: D06F89/00
Filed: 1964-12-31
Abstract: 1,120,116. Sheet folding apparatus. BROOKHIRST IGRANIC Ltd. 3 March, 1966 [31 Dec., 1964], No. 53019/64. Heading B6H. [Also in Divisions DT and G1] In a sheet folding machine, in which sheets of varying lengths are folded, a device which senses the leading and trailing edges of the sheet subsequently causes the sheet folding mechanism to fold the sheet at its centre point. The device consists of a drum 1, Fig. 1, having a magnetic tape 2 on its periphery, which is rotated by a shaft 3 at a speed synchronized with that of a conveyer (18), Figs. 3a-3d (not shown), carrying linen sheets (20). Adjacent the drum, but not in contact with it, is a driving member 4 of an electromagnetic clutch, secured to a shaft 5 concentric with the shaft 3. When operated, the member 4 engages a driven member 6, also mounted on the shaft, 5, which carries a recording head 9. When the leading end of a sheet is detected by a switch 15, contacts 16 are closed thereby energizing the clutch and starting member 6 rotating at a lower rate than that of the drum 1, preferably half the rate of the drum. When the switch detects the trailing end of the sheet, contacts 17 are momentarily closed, causing an energizing pulse to be sent to the recording head 9 which records a signal 23 on the track 2. Subsequently contacts 16 are opened, thereby disengaging the clutch so that the member 6: returns under the action of a biasing spring (12), Fig. 2 (not shown), to its original position against a stop 11. Meanwhile the drum continues to rotate and, after a fixed angle of rotation, the recorded signal 23 is detected by a head 12 which energizes the folding mechanism 21. A succeeding head 14 then erases the signal from the tape so that the device is ready for the next sheet. The position of the head 12 is arranged so that as the signal 23 is detected by this head, the sheet is in the correct position for folding. The device can be extended to cause the operation of two sheet folding mechanisms, e.g. for first folding the sheet in half and subsequently into quarters, by having a second recording track on the drum 1 and providing a second clutch with recording head mounted on a. third concentric shaft rotating at a slower rate than the recording head 9, e.g. quarter of the rate of the drum shaft.
Patent GB-1510819-A (GB)
Title: Flame retardant bromine-containing carbamoyl compounds
IPC: C07C239/00
Filed: 1975-12-29
Abstract: 1510819 Bromoalkyl N-substituted-carbamates HOOKER CHEMICALS & PLASTICS CORP 29 Dec 1975 [30 Dec 1974] 53030/75 Heading C2C [Also in Division D1] Bromoalkyl N-substituted carbamates of general formula wherein each R<SP>1</SP>, same or different, is H, C 1-4  alkyl or hydroxyalkyl, C 5-7  cycloalkyl, phenyl or C 1-4  alkyl substituted by phenyl or (C 1-4  alkyl)phenyl or optionally hydroxy- or halosubstituted hydroxy-terminated C 2-4  oxyalkylene; R<SP>2</SP> is C 1-4  alkylene, optionally hydroxy- or halo-substituted C 2-4  oxyalkylene, or C 1-4  alkylene or C 2-4  oxyalkylene substituted by -O-CO-N(R<SP>1</SP>) 2 ; each X, same or different, is Cl or Br or C 1-4  alkyl substituted by Cl or Br; n is 0-20; provided that at least one X group is Br or Br-substituted C 1-4  alkyl, and at least one R<SP>1</SP> substituent contains a hydroxy group. The compounds are prepared by reacting 1 mole of an alcohol CX 3 CH 2 (R<SP>2</SP>) n OH with COCl 2  (2 moles), reacting with NH 3  and then replacing one or both H atoms of the carbamate group by R<SP>1</SP> groups. Preferably at least one X group is C 1-4  bromoalkyl and at least one R<SP>1</SP> group is C 1-4  hydroxyalkyl. In the example N,N-bis- (hydroxymethyl) - carbamoyl tribromoneopentane is prepared. Carbamoyl-tribromoneopentane is obtained by reacting tribromoneopentyl alcohol with COCl 2  and subsequently treating with NH 3 .
Patent GB-1504310-A (GB)
Title: Apparatus for measuring the condition of a tool
IPC: G01N3/58
Filed: 1975-12-31
Abstract: 1504310 Testing condition of tools electrically TOKYO SHIBAURA ELECTRIC CO Ltd 31 Dec 1975 [21 Nov 1975] 53283/75 Heading G1N [ Also in Division B3] The condition of a tool is detected by measuring the working resistance of a workpiece to the tool. After a predetermined number of drilling operations of a drill a sample made of the same material as the workpiece is drilled four times and the working resistance measured for each drilling operation by measuring the torque, thrust, cutting temperature or the number of revs to drill a hole in the sample. If two or more of the measurements indicate that the life of the drill is finished a fresh drill is fitted.  Torque and thrust transducers Figs. 2, 3. A cylindrical casing 21 houses a diaphragm 23 having a thickened central 23b and peripheral portions 23a the latter being secured to the casing 21. A Piezo-electric member P1 is sandwiched between the portion 23b and spacer 24. Mounted above central projection 23d on steel ball 31 is a sample holder 26 which is supported by criss-cross spring 27 in the casing. Holder 26 also carries two depending portions 26 which with projections 23a of diaphragm 23 sandwich a pair of Piezoelectric elements P2. With the sample 6 held in position on the holder 26 the drill is brought into contact with the sample and a hole drilled at constant speed and rate of feed. An electrical signal indicative of thrust C is obtained from member P1 as holder 26 moves downwards and forces diaphragm 23 against the member P1. An electrical signal indicative of the torque B is obtained from members P2 as the portions 26a are rotated by the torque B into contact with the members P2. Circuitry Fig. 7 (not shown). The working resistance signals are fed via an amplifier and filter to an integrator the output of which is fed to one input of a comparator. If the integrated signal is greater than a reference signal applied to the comparator a pulse is fed to a counter having a capacity of four units and which is pre-set to a count of two. After each measurement the sample is moved and a further hole drilled and the working resist-  ance monitored each measurement being counted by a second counter having a capacity of four counts. After four measurements the second counter applies a reset signal to the first counter and if there are two units stored therein then a carry signal is produced to stop the drilling operation and exchange the drill. If no carry signal is produced a command signal for continuing the drilling operation. If the first two measurements produce a pulse at the input of the first counter a carry signal is produced and a clear signal is sent to both counters.
Patent GB-1524210-A (GB)
Title: Radio antennae
IPC: H01Q1/08
Filed: 1975-12-31
Abstract: 1524210 Whip antenna MARCONI CO Ltd 30 Dec 1976 [31 Dec 1975] 53309/75 Heading H4A At least one section of a whip antenna comprises a flexible insulating core 4 which carries on its surface conducting material 14 to provide an RF path along the section, and a series loading capacitor formed by strip electrodes 16, 17 which embrace the core. Core 4 may be a fibreglass rod, material 14 braided copper wire, and electrodes 16, 17 copper tape or conductive paint. Threaded ferrule 5 is for connection to another section. The section has a fibreglass tape sheath 20. The antenna may be vehicle-mounted, or supported on a telescopic mast and provided with a counterpoise of radially-extending rods.
Patent GB-1442847-A (GB)
Title: Electronic equipment assembly comprising plug-in modules and test bars
IPC: H01R12/50
Filed: 1973-11-16
Abstract: 1442847 Compound assemblies MERLIN GERIN 16 Nov 1973 [20 Nov 1972] 53420/73 Heading H1R Printed circuit card 10 has contacts 14 along its rear edge mating with contacts of a connector panel when card 10 is plugged into a cabinet, and test contacts 30 along its front edge mating with socket contacts 28 of testing means carried by member 22 when card 10 and member 22 engage in plug-in fashion. Each socket contact 28 may be associated with a three-position switch 32 (Fig. 3) including bridging contact spring 38 and contacts 40, 46 connected to a common supply line and 42, 44 connected to lips 48, 50 constituting socket contact 28. In position O contacts 42, 44 are bridged and the testing device is inoperative when plugged in. In position 1, a circuit 11 is isolated from a terminal 14 since converting of a signal by gate 56 disables in the case of an input circuit, the corresponding input of AND-gate 54 (Fig. 4, not shown). In position 2 the signal applied to contact 44 enables the corresponding input of OR-gate 58 and is transmitted, so that position 2 corresponds to simulation of an input signal applied to circuit 11.
Patent GB-1073808-A (GB)
Title: Blower chests for tempering glass
IPC: C03B27/052
Filed: 1965-12-17
Abstract: Apparatus for the differential tempering of sheet glass, especially curved sheet glass for windscreens, comprises two main blower chests 1, 1a positioned one on each side of the sheet 34 from which jets of air are directed into the glass, one or both of the main chests 1, 1a being provided with at least one secondary blower chest 2 and/or 2a from which jets of air can be directed on to the glass at a pressure different from that of the jets of the main chests, the chests 2 and/or 2a being supported by the main chests 1, 1a by means which allow relative motion between the main and secondary chests. Preferably the secondary chests 2, 2a are mounted in housings 3, 3a for horizontal reciprocating movement on slide rails 19, 19a giving movement at right angles to the normal vertical reciprocating movement of the main chests, which are guided on rails 18, 18a by rollers 17, 17a.  Both movements are produced by a motor 16 from driving shaft 13 through <PICT:1073808/C1/1> appropriate linkage. The air under pressure is supplied to the main chests 1, 1a through ducts 4, 4a by bellows 5, 5a connected to a fan, not shown, and the secondary chests 2, 2a are connected by separate pipes 32 to the air ducts 4, 4a so that the pressure can be regulated independently.  The nozzles of the main chests 1, 1a and the nozzles 38 of the secondary chests 2, 2a are regulated so as to lie equidistant from the glass sheet and the nozzles 38 are preferably spaced further apart than the nozzles of the main chests.  The frequency of the movements of the two sets of chests may be the same or they may be varied by adjustment of eccentrics to give variable or complicated paths to the jets.  The chests may be independently driven.
Patent GB-1170777-A (GB)
Title: Aminoalkyl Esters, their Acid Addition Salts Isocyanato and Isothiocyanato Derivatives
IPC: C07C265/04
Filed: 1967-01-05
Abstract: 1,170,777. Aminoesters, their salts and isocyanates and isothiocyanates derived therefrom. ROHM & HAAS CO. 5 Jan., 1967 [6 Jan., 1966], No. 54013/66. Heading C2C. Hydrochlorides of aminoesters of organic acids are prepared by reacting: (a) monoalkanolamines in which the amino group is primary and the hydroxyl group is primary or secondary and which contains from 2-8 carbon atoms in the alkanol portion, the chain of which may contain an ether or thioether linkage or may contain phenyl, halo or nitro substituents; with (b) monocarboxylic acids having two or more carbon atoms per molecule, oxalic acid, succinic acid, or dicarboxylic acids having chains of at least three carbon atoms, one of which may be replaced by oxygen, sulphur or selenium, separating the carboxyl groups; the reaction being carried out in a liquid medium containing an excess of hydrogen chloride relative to the amino groups present in the reactant materials and in the presence of a stream of hydrogen chloride bubbling through the reaction medium, the reaction medium being maintained at a temperature of at least 40‹ C. and the water produced during the course of the reaction being removed from the reaction medium as the reaction proceeds. The hydrochlorides may subsequently be converted to the corresponding free aminoesters or other salts thereof or to isocyanates or isothiocyanates. The alkanolamine may be introduced into the reaction medium in the form of its hydrochloride. Bis - [# - (N<SP>1</SP> - phenylureido) - ethyl] - 2,2<SP>1</SP>- thiodiacetate may be obtained by reacting aniline with di-#-isocyanatoethyl-2-,2<SP>1</SP>-thiodiacetate obtained by the above process.
Patent GB-1404850-A (GB)
Title: Coating compositions
IPC: C08G18/40
Filed: 1972-11-24
Abstract: 1404850 Air-drying or stoving coating compositions VIANOVA KUNSTHARZ AG 24 Nov 1972 [26 Nov 1971] 54406/72 Headings C3P and C3R An air-drying or stoving coating composition is produced by reacting (a) from 30-90% by weight of an alkyd resin having an intrinsic viscosity of 4À5 to 9 ml./g. and a hydroxyl number of from 40 to 250 mg. KOH/g., (b) 5-68% by weight of a resin obtained by polymerizing one or more olefinically unsaturated monomers and having an intrinsic viscosity of 10 to 25 ml./g. and a hydroxyl number of 30 to 150 mg. KOH/g. and (c) 2-10% by weight of an organic diisocyanate at 50-150‹ C. in a solvent which does not react with isocyanates. Stoving compositions may include from 5-30% by weight of an aminoplast resin. Illustrated alkyd resins are derived from (i) dehydrated castor oil transesterified with glycerol, phthalic anhydride and glycerol; (ii) soya fatty acid, dehydrated castor oil fatty acid, benzoic acid, pentaerythritol and phthalic anhydride, (iii) dehydrated castor oil, soya oil, glycerol, pentaerythritol and phthalic anhydrice; (iv) soya oil, pentaerythritol, glycerol and phthalic anhydride and (v) neopentyl glycol, trimethylolpropane, adipic acid and isophthalic acid. Illustrated resins (b) are obtained by the copolymerization of styrene and #-hydroxyethyl acrylate together with n-butyl acrylate and/or methyl methacrylate. Exemplified diisocyanates are tolylene diisocyanate and isophorone diisocyanate. The aminoplast, where used, is suitably a melamine resin. The air-drying compositions may include a curing catalyst such as lead naphthenate, zinc octoate or dibutyl stannous dilaurate. Pigments such as titanium dioxide and molybdate red may be included in the compositions. The compositions are useful in automobile repair paints, automobile top coats and tube enamels.
Patent GB-1149446-A (GB)
Title: Rotary connection for tubes which are under internal pressure
IPC: F16L27/08
Filed: 1967-12-01
Abstract: 1,149,446. Rotary joints. MANNESMAN A.G. 1 Dec., 1967 [9 Dec., 1966], No. 54838/67. Heading F2G. A rotary connection for tubes under internal pressure includes a bearing consisting of an inner part 4 connected to a tube 2 and an outer part 5 connected to a tube 2<SP>1</SP> by an outer fastening ring 7, an inner fastening ring 6 being attached to the part 4; an adjustable sealing ring 10 is arranged between the rings 6, 7. The rear of the sealing ring is supported by an axially displaceable thrust ring 11 supported by inclined surfaces against wedge-formed parts 12 distributed evenly about the circumference of the ring 6 and supported on an abutment 7<SP>1</SP> of the ring 7, the parts 12 being displaceable at ring angles to the direction of movement of the thrust ring 11, each under the action of an adjusting screw 9. The sealing ring may be of V-shaped cross-section, the arms of the ring being forced apart by a wedge-shaped expander ring 13.
Patent GB-1073880-A (GB)
Title: Process for the preparation of polytrimethylene glycol
IPC: C07C43/13
Filed: 1965-12-28
Abstract: Polytrimethylene glycols having an average molecular weight in the range from 1000 to 1500 and high average dihydroxy termination in excess of 92% are obtained by vacuum stripping a polytrimethylene glycol having an average molecular weight of about 900 and a dihydroxy termination of at least 92% in a current of nitrogen until an average molecular weight of 1000 to 1500 is reached.  The vacuum stripping is preferably carried out at a pressure of 1-8 mm. Hg at temperatures of 220-240 DEG  C. suitably for 1-6 hours.  Preferred products are those having average molecular weights of 1200-1400. The polytetramethylene glycol starting material may be obtained by condensation of tetramethylene glycol at 175-300 DEG  C. in the presence of a catalyst, preferably hydriodic acid.  The products may be reacted with diisocyanates to give polyurethanes.
Patent GB-1167427-A (GB)
Title: Fuel Compositions
Inventor: AARON COLIN
IPC: C10L1/198
Filed: 1967-12-04
Abstract: 1,167,427. Fuels. ESSO RESEARCH & ENG. CO. 4 Dec., 1967, No. 55075/67. Heading C5G. [Also in Division C3] A fuel composition comprises a fuel or crude oil and a minor amount of an ester of a phenol /aldehyde polymer derived from a phenol which may have a hydrocarbyl, substituted hydrocarbyl or acyl substituent, the ester group containing at least 18 C atoms. The ester may have a molecular weight of 800-100,000. The examples describe phenol/formaldehyde and p-cresol/formaldehyde copolymers esterified with a mixture of C 18 -C 24  straight chain carboxylic acids.
Patent GB-1495299-A (GB)
Title: Method and apparatus for time compression of facsimile transmissions
IPC: H04N1/17
Filed: 1974-12-23
Abstract: 1495299 Facsimile transceiver EXXON RESEARCH & ENG CO 23 Dec 1974 [8 March 1974] 55377/74 Heading H4F Bandwidth reduction in a facsimile transceiver is effected by employing a two speed scan, the faster of which is used in the absence of information on the original and the slower when information to be transmitted is present. The transceiver comprises a read and a lead head constructed of fibre optic bundles and a rotating drum on which the original is mounted for scanning. The read head is axially spaced from the lead head and scans the same path as the lead head one revolution of the drum thereafter. One revolution of the drum at the slow rate occurs in one "time frame" (e.g. t 0  to t 1 , Fig. 3) the fast scan rate being five times faster. Light from the original passes to read and lead photodetectors 18, 20 and is converted into signals which pass to respective pre-amplifiers 22, 24 sample outputs of which are shown in waveforms a, Fig. 3 and b. These signals are applied to an RC timing circuit and the pulses therein fully charge the capacitor stage the output of which is depicted by c. This capacitor takes one time frame to discharge from its fully charged state. When the capacitor output is positive a comparator is held in a constant positive signal emitting state but when the capacitor output falls to zero the comparator output falls to zero as seen in waveform d. A clock generates pulses in synchronism with the rotation of the drum. These pulses are processed (e and f) and used to control the charging of a second RC timing circuit only when the comparator output is positive. A positive output from the capacitor in the second RC circuit, waveform g, maintains a second comparator in a constant positive output mode which becomes zero when the capacitor fully discharges, waveform h. The capacitor of the second RC timing circuit also takes one time frame to fully discharge. A zero output from this second RC timing circuit initiates the fast scan whereas a positive output initiates the slow scan. This results in the fast scan only commencing upon the read head scanning a scan line void of information whilst the lead head simultaneously scans a scan line void of information. The slow scan rate will be reinitiated when the lead head detects further information. The clock pulses are also applied to the preamplifiers to blank out apparent pulses derived from the shadow of the clip retaining the original on the drum. In the receive mode a copy medium is mounted on a rotating drum for scanning at the fast or slow rate. The fast scan being initiated upon receipt of a corresponding period void of pulses in the input signal and the slow scan by receipt of the first pulse in the next pulse train which will have been generated from the lead head and subsequently read for copying transmission by the read head.