baber/WOPTO huggingface dataset:
Patent GB-1479141-A (GB)
Title: Extraction of n-blocked amino acid from aqueous solutions
IPC: C07C227/42
Filed: 1973-08-01
Abstract: N-blocked amino acids and N-blocked peptides are obtained in the form of their esters from their aqueous solutions or slurries with the aid of a novel extraction process, wherein the N-blocked amino acid or the N-blocked peptide is converted to a water-insoluble ester by treating the solution with a diazo compound containing the ester group to be introduced, in the presence of a water-immiscible solvent, resulting in a solution of the ester in the organic solvent.   Diazo compounds particularly suitable for this process correspond to the formula (I) <IMAGE>  wherein     R<1> denotes a hydrogen atom or an organic group and   R<2> denotes an organic group, or R<1> and R<2> together with the carbon atom to which they are bonded form a cyclic organic group.   The process is applied with particular advantage to the isolation of penicillins and cephalosporins from fermentation broths.
Patent GB-845626-A (GB)
Title: Method of sealing vinylidene chloride polymer surfaces to one another
Inventor: CHENEY GRANT WHEELOCK
IPC: B29D23/20
Filed: 1958-11-13
Abstract: 845,626. Seaming. DOW CHEMICAL CO. Nov. 13, 1958, No. 36543/58. Drawings to Specification. Class 42 (1). [Also in Group XVII] Opposed surfaces of a normally crystalline vinylidene chloride polymer are sealed by bringing the surfaces into contact with each other while in a supercooled non-crystalline condition, at a temperature in the range from 20-45‹ C. and under sufficient pressure to fuse the surfaces together. Preferably the temperature range is 30-35‹ C. The method is used to form a transverse seam at one end of a tube, a longitudinal seam in a sausage casing, or a seam in a packaging operation.
Patent GB-758330-A (GB)
Title: Automobile door hinge
Inventor: JOHNSON AGNAR
IPC: E05F1/12
Filed: 1954-12-17
Abstract: 758,330. Hinges. ATWOOD VACUUM MACHINE CO. Dec. 17, 1954, No. 36592/54. Class 65 (2). A hinge comprises a member 5 pivoted to a member 8 about a hinge axis 14, an arm 20 pivoted to member 5 about an axis 21 parallel to the hinge axis, arm 20 having a straight edge 29, an abutment 28 on member 8, and a spring 24 adapted to bias the straight edge against the abutment, the arrangement being such that the abutment passes through a dead-centre position with respect to the straight edge and the hinge axis, the hinge being thereby biased respectively to the open and closed position on opposite sides of the dead-centre position. As shown, member 5 is the outer, box-shaped part of a concealed hinge for a motor vehicle door, and arm 20 is provided near its pivoted end with a notch 31 which co-operates with the abutment to hold the hinge in the door-open position.
Patent GB-1445196-A (GB)
Title: Vehicle having a tip-up cab
IPC: B62D33/07
Filed: 1973-08-01
Abstract: 1445196 Tip-up cab mountings AUTOMOBILES M BERLIET 1 Aug 1973 [26 Sept 1972] 36630/73 Headings B7B and B7D A vehicle tip-up cab 1 is pivotally connected at 3 to chassis members 2 by an arm 4 and is tipped by a ram 11 pivoted between the members 2 and a lever 15 pivoted at 16 to the arm, the arrangement being such that the ram initially compresses a suspension spring 7 between the cab and the arm before tipping the cab. The arm 4 is slidably connected at 5 to the cab and the connection 14 between the lever 15 and the ram provides for some free movement; these connections allow normal movement of the cab on the suspension spring 7. Spring 7 is mounted, along with a shock absorber 10, between adapters provided on the arm and the cab and arm 15 is pivoted to the cab adapter.
Patent GB-627040-A (GB)
Title: A machine for making constructional elements for heat exchangers and the like, from metal strip
IPC: B21D53/02
Filed: 1946-12-12
Abstract: 627,040. Making heat-exchangers. ARTHUR, T. J. Dec. 12, 1946, No. 36759. [Classes 83 (ii) and 83 (iv)] Soldering; angular bending; corrugating; shearing.-Heat-exchanger elements are made from copper &c. strip transversely pleated and longitudinally corrugated by cutting to length, folding in halves, and making a beaded joint, several elements being clamped and soldered to form a radiator &c. core. Strip 40, drawn from a reel and partly transversely pleated between die-teeth 44a, 45a of gear-driven rolls is guided under an adjustable-pressure leaf-spring holddown on to an endless bed 52 having slats 59 to close the pleats 3 during travel under a profiled longitudinal corrugating roller 72 co-operating with the profiled slats 59 and a backing-roll 79. The pleated, corrugated ribbon 1 is stripped from the bed by a plough and hand-wound on a further reel. The upper, part-pleating roll 44 and the roller 72 are screw-adjustably sprung in their housings and the die-teeth of the roll 44 may be changeable. The bed slats 59, Fig. 4, not shown, are supported by links of fine pitch chains with alternate pins forming axles for coarse pitch chains staggered a half-pitch, and driven by sprockets 53, 54. The pleated strip is cut to length from the roll and has its ends trimmed, Fig. 12, not shown, by a single horizontally-pivoted cutter 17 working against a fixed blade 18 received in and supporting the end channel 4, Fig. 10. In a modification, a shear blade, Fig. 1, not, shown, vertically reciprocated in synchronism with the bed 59, shears the completed ribbon into elements lengths, and a further gravity roll is provided to bear on the bed 59. The trimmed length is held in a slotted jig and has one end handfolded, 36, Fig. 14 to 16, and is then folded in halves with, pleats facing to form a group of tubes, the outer edge being beaded over the folded end to form a seal while held in a camclamped jig 22, Fig. 19, comprising projecting arms 23 received in the tubes, and lateral clamping wings 24, 25 engaging the external corrugations. The beading tool further depresses the bead in two stages to lie flat at the element end in co-operation with the smaller upper projecting arm 23<SP>1</SP> which similarly acts as a mandrel when the element is reversed and the fold is flattened. Several completed elements are toggle-clamped in a compacting frame 35, Fig. 31, and are end-dipped in a solder bath.
Patent GB-1417576-A (GB)
Title: Saturable core reactor
IPC: H01F29/14
Filed: 1972-11-07
Abstract: 1417576 Controlled non-linear inductors INDUCTOTHERM CORP 7 Nov 1972 36763/72 Heading H3X [Also in Division H1] A saturable core reactor control arrangement wherein common windings are utilized for both the alternating current and for the controlling direct current, comprises a bridge arrangement wherein the A.C. is applied to one pair of diagonal junctions and the D.C. to the other, and has a unidirectional path across the D.C. input terminals to the bridge. As shown in Fig. 3 the bridge 10<SP>11</SP> comprises winding on saturable cores 64, 70, and capacitors 72, 74, and the unidirectional path is constituted by the same diode bridge 88 which provides the D.C. source. In Fig. 1 the bridge is formed wholly from saturable core windings and a separate diode 44 shunts the D.C. source. In modifications, resistors replace the capacitors (Fig. 5, not shown), a threephase arrangement is disclosed (Fig. 4, not shown) and a variable resistor shunts the diode 44 (Fig. 6, not shown).
Patent GB-886537-A (GB)
Title: Improvements in electrical calculating machines
Inventor: NELLIST BRIAN DAVID
IPC: G06G7/22
Filed: 1959-10-29
Abstract: 886,537. Electric analogue calculating systems. ROBINSON & PARTNERS Ltd., F. C. Oct. 31, 1960 [Oct. 29, 1959], No. 36778/59. Class 37. In an electrical calculating machine 11 of the type in which real voltages and currents and the resolved in-phase and quadrature components of complex voltages and currents occurring in a network represented by the machine are presented as output voltages Vp, Vq, or currents Ip, Iq, a dynamometer having at least two fixed windings and two movable windings is so arranged as to provide a torque or deflection representative of i 1  i 3  cos # + i 2  i 4  cos #, where i 1 , i 2  are the currents in the fixed windings, i 3 , i 4  are the currents in the movable windings, and # and # are the phase angle differences between the currents i 1 , i 3  and i 2 , i 4 , respectively, and amplifiers supply to the windings in predetermined combinations, currents derived from the output voltages or currents of the machine. The machine, 11, is of the type described in Specifications 476,164 and 476,165, and generates in-phase output voltages at the terminal T1-T4 representing respectively the in-phase and quadrature components of the voltages V and currents I at a preselected point in the network. The voltages are amplified and the corresponding output currents energize the windings W1-W4, of which W3, W4 are mounted on a common rotatable shaft biased by a spring and carrying a pointer, the deflection of which is proportional to VpIp+VqIq. The voltages Vp, Vq and currents Ip, Iq may be applied to the windings in different combinations to give, for example, the reactive power Q, the voltage V and current I.
Patent GB-1119799-A (GB)
Title: Substituted mercapto-tetrazoles and their use in photographic processing methods
Inventor: ABBOTT JOHN RICHARDS
IPC: C07D257/04
Filed: 1965-08-27
Abstract: The invention comprises compounds of the general formula <FORM:1119799/C2/1> wherein M is H or an alkali metal, X is -SO2R or -COR, and R is hydrocarbyl or substituted hydrocarbyl.  The compounds are prepared by reacting the hydrochloride of a compound of the formula <FORM:1119799/C2/2> with a compound of formula RCOCl or RSO2Cl. The 1 - (aminophenyl) - 5 - mercapto - tetrazole hydrochlorides used as starting materials may be prepared by reacting an aminoacetanilide with thiophosgene to give an acetamidophenyl isothiocyanate which is then reacted with an azide to give a 1 - (acetamidophenyl) - 5 - mercapto - tetrazole which is in turn hydrolysed with ionic HCl to the desired product.  An alternative process involves reacting an acetamidophenyl-thio-semicarbazide with HNO2.
Patent GB-1351033-A (GB)
Title: Preparation of esters
IPC: C07C67/00
Filed: 1971-08-05
Abstract: 1351033 Ethylacetate; isobutylacetate and isobutyl isobutyrate EASTMAN KODAK CO 5 Aug 1971 [7 Aug 1970] 36904/71 Heading C2C A continuous process for the production of esters from acetaldehyde and isobutyraldehyde comprises (i) condensing acetaldehyde and isobutyraldehyde, in dry acid free state, in a reaction zone 8, in the presence of a metal alkoxide condensation catalyst for long enough to obtain at least 90% conversion to esters; (ii) passing the reaction mixture to a holding zone 9 maintained at elevated temperature where it is held until substantially complete conversion of reactants is achieved; (iii) passing the product to a first distillation zone 1 where an overhead distillate stream and a bottom residual stream are taken off, the over-head being passed to a second distillation zone 2 where again (iv) an over-head distillate stream and a bottom residual stream are withdrawn; the bottom residual stream being passed to a third distillation zone 3 where (v) substantially pure ethylacetate is withdrawn as an over-head stream and a bottom residual stream is also withdrawn and passed to a fourth distillation zone 4 where; (vi) an over-head distillate stream and bottom residual stream are withdrawn, the bottom residual stream being returned to the first distillation zone and the over-head stream being passed to a fifth distillation zone 5 where (vii) a side product stream of pure isobutylacetate, an over-head stream and a bottom residual stream are withdrawn, the bottom stream being returned to the first distillation zone; (viii) passing the bottom residual stream from the first distillation zone 1 to sixth distillation zone 6 where (ix) a bottom catalyst sludge stream is removed and an over-head distillate stream is withdrawn and passed to a seventh distillation zone 7 where (x) a side stream of pure isobutyl isobutyrate is withdrawn and an over-head distillate stream is also withdrawn. The overhead streams from distillation zones 2 and 5 or 2, 5 and 7 may be combined and passed to catalyst formation zone 28. It is preferred to carry out the reaction at 0-10 degrees in the presence of as preferred catalyst aluminium alkoxide and to maintain holding zone 9 at 20-40 C. The catalyst may also include as a promoter a metal chloride, e.g. AlCl 3 .
Patent GB-1028158-A (GB)
Title: Flame-retardant agents for thermoplastic products
IPC: C08K5/5397
Filed: 1964-09-09
Abstract: A flame-retardant composition comprises a thermoplastic polymer and a flame-retarding amount of a compound <FORM:1028158/C3/1> where R, R1 and R2 are hydrogen; saturated alkyl (C1 to C6) radicals; saturated alicyclic (C5 or C6) radicals; cyano, hydroxy, carbamoyl, amino or carboxy substituted alkyl (C1 to C6) radicals or alicyclic (C5 or C6) radicals; aryl (C6 to C10) radicals; aralkyl (C7 to C11) radicals; hydroxy, alkoxy (C1 to C4), halo or polyhalo substituted aralkyl (C7 to C11) or aryl (C6 to C10) radicals or indanyl radicals and X is oxygen or sulphur, not more than one of R, R1 and R2 being hydrogen. The polymers may be vinyl or vinylidene halide polymers; vinyl acetate polymers; polyvinyl butyral; butadiene copolymers; acrylonitrile-butadiene-styrene polymers; acrylonitrile, acrylate and methacrylate polymers; polymers of esters; polymers of vinyl cyclic compounds and polymers of unsaturated ethers, amides, ketones and alcohols. In the examples, the polymers employed are polyethylene; polypropylene; polymethylmethacrylate; methylmethacrylate, styrene, acrylonitrile copolymer; a mixture of a butadieneacrylonitrile copolymer and an acrylonitrilestyrene copolymer.  Numerous phosphine oxides and sulphides are used.
Patent GB-1119879-A (GB)
Title: Improvements relating to modulators
Inventor: SILBER WARWICK
IPC: H03C7/02
Filed: 1966-08-18
Abstract: 1,119,879. Phase modulation. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 3 July, 1967 [18 Aug., 1966], No. 36997/66. Heading H3R. A stepped phase shift microwave modulator includes as many passive switching elements D1 . . . D4 as the number of phase steps required, each arranged to connect to a common output point a transmission path of different electrical length l, l+#/8, l + #/4, l+3#/8, and means controlling the states of the switching elements such that at each phase step a different path is effective, and the number of switching elements in a given state is always the same. The transmission paths may be waveguides as shown in Fig. 1, or striplines, Fig. 2 (not shown), and the common input/ output connection may be replaced by an isolated input and output using a circulator, Fig. 3 (not shown), or couplers and isolators. The switching elements may be PIN diodes, varacter diodes, plasma switches, or ferrite switches. Either single elements or series and/or parallel arrangements may be used.
Patent GB-1361502-A (GB)
Title: Machine-readable clock cards
IPC: G07C1/14
Filed: 1971-08-06
Abstract: 1361502 Workman's clocking in/out cards ANDERS & CO INHABER ARTHUR ANDERS GEBR 6 Aug 1971 [6 Aug 1970] 37102/71 Heading G4T A workman's clocking in/out card bears a column II of pre-recorded machine readable marks 57 and a series of columns 1-15, each corresponding to a particular day and in each of which machine readable marks 58-60 and 61-63 may be recorded to indicate by their position in the column clocking-in times and clocking-out times respectively for the corresponding day. Column I bears numerals indicating times of day. When reading the card, column II is scanned by a first device, which produces a pulse each time a mark 57 is sensed, and a particular day column is scanned by a second device which ensures that only those pulses corresponding to working periods 58-61, 59-62, 60-63 are fed to a counter. The marks may be mechanically sensible, e.g. punched holes, or magnetically, optically or electrically sensible. A column of the pre-recorded marks may be arranged alongside each individual day column, Fig. 4 (not shown). Numerals representing the associated time may be printed beneath each mark in the particular day columns. The legible print and the machine readable marks may be arranged on opposite sides of the card. The prerecorded column of marks may include gaps corresponding to predetermined lunch break &c. times and durations, Fig. 5 (not shown), so that only marks 58, 63, Fig. 3, need be recorded in each day column. Alternatively, the prerecorded column of marks may be continuous (i.e. include no gaps) and yet have been recorded to automatically take account of the breaks, Fig. 6 (not shown). Space 56 of the card may bear legible print and machine readable markings identifying the card holder's name, work number and department, Fig. 7 (not shown).
Patent GB-1179692-A (GB)
Title: Improvements relating to Hearing Aids
Inventor: REXIDE GEORGE EDWARD
IPC: H04R25/00
Filed: 1966-08-19
Abstract: 1,179,692. Deaf-aid sets. ELECTRIC & MUSICAL INDUSTRIES Ltd. 9 Aug., 1967 [19 Aug., 1966], No. 37148/66. Heading H4J. A hearing aid adapted to sit in the ear of a user has a resilient projecting ring or bead adapted to press on the inner surface of the outer ear so as to prevent acoustic feedback from the earphone to the microphone. As shown the aid is enclosed in a casing 2 of acrylic resin moulded to fit the ear of a particular user. A projecting bead 6 of silicone rubber is cast in situ in an undercut groove extending around the casing adjacent the microphone aperture. In another form (Fig. 4, not shown) a standard size aid having snap on, flexible earpiece extension as described in Specification 1,173,657, the casing has a projecting bead which extends most of the way round the casing and is interrupted to allow for a door through which the battery may be replaced.
Patent GB-1163425-A (GB)
Title: 0,3-Disilyl-1-3-Diaza-2-Silacycloalkanes and Method of Preparation
IPC: C08G77/62
Filed: 1966-08-19
Abstract: 1,163,425. 1,3 - Disilyl - 1,3 - diaza - 2 - silacycloalkanes. MONSANTO CO. 19 Aug., 1966 [20 Aug., 1965], No. 37293/66. Addition to 1,156,881. Heading C3S. 1,3 - Disilyl - 1,3 - diaza - 2 - silacycloalkanes of the general Formula I: wherein n represents an integer from 1 to 10; R<SP>1</SP> and R<SP>2</SP> taken separately represent substituted or unsubstituted, saturated or unsaturated hydrocarbon groups, heterocyclic groups or silyl groups, all of which may be linked through an oxygen atom, silyl groups linked through a nitrogen atom, or represent hydrogen atoms or fluorine atoms, or when taken together with the attached Si atom form a substituted or unsubstituted heterocyclic ring; R<SP>3</SP> represents a substituted or unsubstituted, saturated or unsaturated hydrocarbon group or a heterocyclic group, or a silyl group, all of which may be linked through an oxygen atom, or a silyl group linked through a nitrogen atom or an amine group which may be primary, secondary or tertiary (the other substituents on the amine being hydrocarbons); and R<SP>4</SP> represents a substituted or unsubstituted saturated or unsaturated aliphatic divalent hydrocarbon group linked through carbon atoms to the ring nitrogen atoms in 1, 2- or 1,3-positions, or represents a divalent aromatic or heterocyclic group linked in ortho position or a polynuclear ring linked in peri position, any of which divalent groups may contain a substituent -0-, -S-, -S-S-, -NH-, -NR<SP>1</SP>-, -SiR<SP>11</SP> 2 -, -NSiR<SP>11</SP> 3 -, -SO- or -SO 2 -, wherein R<SP>1</SP> and R<SP>11</SP> are organic groups, are prepared by reacting corresponding compounds in which a halogen or amino substituent replaces the substituent R<SP>3</SP> with compounds of the general formula MR<SP>3</SP>, M being an alkali metal atom, or a hydrogen atom. The compounds in which n is 2 to 10 are stated to be novel. In the examples, oligomers of 1,3-bis-(dimethylchlorosilyl)-2,2-dimethyl- 1,3 - diaza - 2 - silacyclopentane have the chlorine atoms substituted by butyl groups (using BuLi), phenyl groups (using PhNa), diethylamino groups (using Et 2 NH), phenoxy groups (m-cresol) and various siloxy groups.
Patent GB-990421-A (GB)
Title: Improvements in or relating to shuttering for use in forming concrete walls and other structures
IPC: E04G17/075
Filed: 1961-10-18
Abstract: 990,421. Shuttering for casting walls; positioning reinforcing rods. E. H. FORRESTER. Oct. 18, 1961, No. 37310/61. Headings E1S and E1V. Shuttering for both sides of a wall is spaced by ties 3 having the ends 6 connecting them to the shuttering bendable or breakable to allow removal of the shuttering, the ends of the ties having notches 4 at each side which are securing notches and also weaken the end and allow it to be bent or broken off. The ties are inserted into slots 7 in the shuttering supporting uprights 1 with the plane of the tie parallel with the slot and then turned through 90 degrees so that the notches 4 engage the edges of the slot or the slot may have a widened portion at the top to receive the tie horizontally. The ties have lugs 8 to engage the inside of the shuttering boards 2 and may have lugs to locate reinforcing rods for the concrete Fig. 6 (not shown). The part of the tie which engages between the boards 2 may have notches or holes for nails for securing timber fillets when the shuttering has been removed. The tie may be broken off within the concrete by placing the notches at a suitable position. The tie may have one end 20, Fig. 10, at right angles to the other end 21. The tie may be of arcuate cross-section or of rod with flattened and notched ends. With metal shutters the ties are connected directly to the shuttering panels.