baber/WOPTO huggingface dataset:
Patent GB-1099814-A (GB)
Title: 7-amino-mitosenes
IPC: C12P17/18
Filed: 1965-11-04
Abstract: The invention relates to 7-amino mitosenes of formulae <FORM:1099814/C2/1> wherein R1 is H or C1- 4 alkyl, R2 is C1- 4 alkyl and R4 is H, C1- 4 alkyl or C1- 4 alkylcarbonyl, <FORM:1099814/C2/2> wherein each of R1 and R2 is H or C1- 4 alkyl, R4 is H, C1- 4 alkyl or C1- 4 alkyl carbonyl, and each of R5 and R6 is H or C1- 4 alkylcarbonyl; but excluding 1-acetoxy-2-acetamino-7-amino-mitosene; and <FORM:1099814/C2/3> wherein each of R1 and R2 is H or C1- 4 alkyl, R4 is H, C1- 4 alkyl or C1- 4 alkylcarbonyl, and each of R5 and R7 is H or C1- 4 alkylcarbonyl.  The compounds are prepared by the action of ammonia or the appropriate primary or secondary amine on the corresponding 7-alkoxy mitosene, wherein the 7-alkoxy group is C1- 4 alkoxy or allyloxy.  Typical compounds are lamethyl - 7 - methylamino - aziridino - mitosene and 1 - hydroxy - 2 - acetamino - 7 - amino - decarbamoyl-mitosene The 7-alkoxy mitosenes are prepared from compounds of formula <FORM:1099814/C2/4> by (a) catalytic hydrogenation followed by oxidation with air to give the 7-alkoxy mitosene corresponding to compounds (A), (b) hydrolysis with 0.1 N.HCl to give type (B) compounds and (c) hydrolysis with 2N.HCl, followed by methylation with diazoalkane to give type (C) compounds. The compounds have antibacterial and antitumour properties. Pharmaceutical compositions for oral or topical use comprise a 7-amino mitosene of formulae (A), (B) and (C) above and a carrier.
Patent GB-1081702-A (GB)
Title: Improvements in or relating to connector members for pipes, tubes or the like
Inventor: CLAYTON HERBERT ROY
IPC: F16L37/088
Filed: 1963-11-29
Abstract: 1,081,702. Pipe coupling. BRITISH ALUMINIUM CO. Ltd. Nov. 30, 1964 [Nov. 29, 1963], No. 47254/63. Heading F2G. A connector member 1 for a pipe coupling has at least one passage opening to the exterior thereof to receive the free end of a pipe and has a plurality of tooth-like projections of a resiliently deformable material angularly disposed about and extending into the path of insertion of the pipe end and at an inclination away from the open end of the connector and includes sealing means between the connector and the pipe. As described, the connector is preferably of aluminium and contains a spring steel part-cylindrical element 5 having the tooth-like projections 6 and fitting in a recess 4 in the connector, sealing of the coupling being provided by a sealing ring 8 seated in a groove 7 which may be internally or externally situated relative to the spring steel element 5. A rib 3 is provided to limit the depth of penetration of the pipe, which, in one embodiment may be replaced by a solid wall to blank-off the pipe end. The connector may have one opening when acting as a stopper, two, as shown in Fig. 1, or more.
Patent GB-1485772-A (GB)
Title: Servo valve arrangement
IPC: F15C3/12
Filed: 1974-10-23
Abstract: 1485772 Fluid-pressure servomotor systems LUCAS INDUSTRIES Ltd 23 Oct 1974 [10 Oct 1973] 47285/73 Heading G3P In a servovalve arrangement a main valve member 14 is moved by the pressure in control passages 16, 17 to control flow through metering orifices 13 between an inlet 11 and an outlet 12. The pressure in passages 16, 17 is controlled by a tubular pilot valve element 24 pivoted by a torque motor 25 and having an inlet (26) at one end, which communicates with a servo pressure inlet (28), and an outlet slot (27) at the other end, which communicates with a respective one of the passages 16, 17. The walls about the outlet slot are shaped so that when the outlet slot is opposite one of the passages 16, 17 the flow out of the other of the passages 16, 17 into an exhaust passage 22 creates a low-pressure zone which acts to urge the valve element 24 towards its mid position. The main valve-member 14 carries a moving element 18 for a position transducer 19.
Patent GB-1306737-A (GB)
Title: Holography
IPC: G03H1/22
Filed: 1970-10-06
Abstract: 1306737 Holography INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1970 [21 Oct 1969] 47341/70 Heading G2J Orthoscopic real images are reconstructed from a hologram 9 by illuminating the hologram with the same reference beam 6 used in the construction of the hologram, and when the beam has passed through the hologram 9 causing it to be reflected precisely back upon itself as a conjugate beam, the hologram being oriented such that an orthoscopic real image 22 is formed by the reflected beam as it passes through the hologram a second time. The reference beam may be divergent, convergent or collimated. The reflecting means are mirrors. To prevent glare the hologram 9 may be immersed in a liquid 32 having the refractive index as a front wall 31 of its container. Both the outer wall 30 and mirror 32 if concave or convex have their focal points either coincident with the original point light source or the original focal point of the reference light beam. The application is used in the production of semi-conductor micro-circuits.
Patent GB-1246464-A (GB)
Title: Improvements in or relating to holder for a cutting tool bit
Inventor: WELCH JOHN
IPC: B23B27/16
Filed: 1968-10-08
Abstract: 1,246,464. Cutting tools. DIAGRIT GRINDING CO. Ltd. 3 Oct., 1969 [8 Oct., 1968], No. 47566/68. Headings B3C, B3K, B3L and B3T. A cutting tool comprises a body member 10 with a recess 11 in which is located a removable cutting insert 12, and a clamp member 13 which is attached to the body member by a screw 20, which is inclined to the base of the recess and which in operation applies a clamping force at an acute angle to the base of the recess, one end of the clamp having a projection 17 which engages in a bore 18 in the insert and the other end of the clamp having an inclined face 19 which engages a complementary inclined face 22 on the holder body. Tightening of the clamp screw 20 urges the insert on to the base of the recess and also parallel to the base shoulders 23, 24 forming rear walls of the recess. A spring 25 may be incorporated between the clamp and the body member to urge the clamp 13 away from the body when the screw is released. The cutting tool may be used in turning, boring, milling, and shaping operations.
Patent GB-982608-A (GB)
Title: Coupler assembly
IPC: B62D53/08
Filed: 1962-12-19
Abstract: 982,608. Fifth wheel couplers. DAYTON STEEL FOUNDRY CO. Dec. 19, 1962 [Dec. 21, 1961], No. 47898/62. Heading B7T. A fifth wheel king-pin coupler comprises a locking jaw 23 pivoted at 25 and biased to an open position by a spring 26, a locking bar 35, 36 pivoted at 38 and biased by a spring 40 to a locking position, a curved surface 34 on the portion 35 with a centre of curvature about the pin 38, and a jaw 45 pivoted for limited movement about the pin 38 and seating against a resilient block 48. A latching mechanism operative on the locking bar 35, 36, comprises latch bars 52, 53 above and below the bar 36 and pivoted on a pin 54, a helical spring around the pin 54 causing the bars 52, 53 to rotate in opposite directions, and notches 58, 59 on the latch bars adapted to engage escapement fashion with a pin 56 on the locking bar 36 so that the locking mechanism may be automatically re-set for re-coupling. From the coupling engaged and locked position, Fig. 3, in which the end 60 of latch bar 53 engages the king-pin 29 and prevents the bar 53 from engaging with the pin 56, the bar 36 may be pivoted to disengage the surfaces 33, 34 and the pin 56 is moved to snap engage with the notch 58. In this position, Fig. 4, the bar 36 is restrained against the bias of spring 40 and the king-pin 29 is free to move out of the slot 24. As the king- pin moves rearwardly out of the slot, Fig. 5, the bar 53 is rotated by its helical spring so that both bars 52, 53 engage the pin 56, but as the pin 29 clears the jaw 23 a finger 31 on the jaw disengages bar 52 from pin 56 and the bar 36 rotates slightly towards the slot 24 under the force of the spring 40 so that the pin 56 engages with the end of the notch 59 which is longer than the notch 58. This latter movement of the pin 56 prevents its re-engagement with the bar 52 during re-coupling. In coupling up, the king-pin 29 is moved into the slot 24 where it abuts and rotates the jaw 23 and engages the jaw 45 which yields to absorb the shock. The pin 29 then engages the end 60 of the bar 53 and rotates it sufficiently to remove the notch 59 from the pin 56, after which the bar 36 pivots and locks on to the jaw 23.
Patent GB-1411985-A (GB)
Title: Silver recovery process
IPC: C07D249/12
Filed: 1972-10-18
Abstract: 1411985 Silver derivatives ILFORD Ltd 19 Oct 1973 [18 Oct 1972] 48035/72 Heading C2C Silver ions are removed from photographic bleach-fix solutions, generally spent solutions, by precipitation by adding a compound selected from 3,5 - dimercapto - 2,4 - triazoles, 2,5 - dimercapto - 1,3 - diazoles, 1 - mercapto- 1,3,4 - thiadiazole - 2 - thiones, 2,5 - dimercapto-1,3,4-thiadiazole and alkali metal salts of these compounds.
Patent GB-1448234-A (GB)
Title: Packaging material
IPC: B32B3/28
Filed: 1973-10-16
Abstract: 1448234 Laminates KIMBERLY-CLARK CORP 16 Oct 1973 48241/73 Heading B5N A flexible, light-weight, cushioning material comprises a first sheet 1 of thermoplastic material having closely spaced cellular protrusions 2 extending from one side and a grid 3 of interconnecting land areas on the second side of the sheet material, each land area defining an open end of a protrusion, and a second sheet 4 of a substantially air impervious flexible thermoplastic material, having a thickness less than the first sheet and being such that it does not cling to the first sheet, extending over the grid closing the protrusions at their open ends and confining air in the protrusions, the second sheet being bonded to land areas of the first sheet to reforce the first sheet and being free of intimate sealing contact with some portions of land areas to provide for air flow communication between adjacent protrusions and for air flow communication betweenthe protrusions and the exterior of the cushioning material. The first sheet may be of polyethylene resin of density 0À915-0À935 gms./c.c. and the second sheet may be of polyethylene of density 0À917 gms./c.c. and having a thickness of ¥-1¢ mils. Alternatively the sheets may be of polypropylene, polystyrene, polyurethane, polyvinyl or cellulose derivatives. Sheets 1 and 4 may be bonded together by heat seal bonds 5 in a manner such that 50-75% of the land areas of sheet 1 are bonded to sheet 4.
Patent GB-1112399-A (GB)
Title: Binary signal detecting systems
IPC: G11B20/14
Filed: 1966-10-28
Abstract: 1,112,399. Transistor pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. 28 Oct., 1966 [28 Dec., 1965], No. 48334/66. Heading H3T. [Also in Division G4] In a binary signal detecting system, a pulse generator is enabled when a ramp voltage whose amplitude is related to the repetition rate of signals fed to the system exceeds a threshold determined by a signal repetition rate. Binary data recorded on a magnetic medium in phasemodulated form using a negativegoing and a positive-going transition for data bits 0 and 1 respectively and non-data transitions between bit periods where necessary in consequence, is read at 10 and produces a pulse at 16 for each negative - going transition [and a pulse at 18 for each positivegoing transition. Each pulse passed by AND gates 22, 23 resets a negative-going sawtooth generator 30. When the sawtooth voltage passes below a threshold value, a Schmitt trigger 32 partially enables the AND gates 22, 23 via OR gate 20. The threshold level is an average of the actual sawtooth range as determined by a filter 34, so if the bit frequency of the input at 10 varies, the threshold varies correspondingly since the period between resets of the sawtooth determines the peak voltage actually developed by the sawtooth. Thus the AND gates 22, 23 will remove pulses resulting from non-data transitions despite variations in the bit frequency. A sequence of Os, followed by a single 1, precede the message on the magnetic record. A " force gate " signal is present, as shown, during reading of most of the initial sequence of 0s, and the " begin record " signal is present thereafter. Flip-flop 44 is set to enable AND gate 40, by the single 1 mentioned. Data pulses (present for 1, absent for 0) and clock pulses appear where shown at the right in Fig. 1. The invention is also applicable to doublefrequency recording in which data is represented by presence or absence of data pulses between regularly occurring clock pulses. In this case, the clock pulses are segregated from the data pulses and then used to synchronize the sawtooth-Schmitt combination above.
Patent GB-1496380-A (GB)
Title: S-z twisting method and apparatus
IPC: H01B13/02
Filed: 1975-11-25
Abstract: 1496380 S-Z stranding SIEMENS AG 25 Nov 1975 [6 Dec 1974] 48467/75 Heading D1T An apparatus for S-Z twisting together of a plurality of elements 1, Fig. 1 comprises spaced stationary guide heads 11, 16 defining between them a twisting region, a pair of stranding heads 12, 13 associated with guide head 11 and a pair of stranding heads 14, 15 associated with guide head 16; the arrangement being such that heads 12 and 14 rotate in the same direction and can simultaneously be caused to engage the cable elements and twist them together in one direction; and thereafter, the heads 13 and 15 that jointly rotate in the opposite direction to the heads 12 and 14 can simultaneously be caused to engage the cable and twist it in the opposite direction in the period that the heads 12 and 14 are not in engagement with the elements 1. In Fig. 1 the arrows show how the stranding heads 12, 14 are in engagement with the elements 1 whilst the heads 13, 15 are free therefrom; and in Fig. 2 the arrows show how the heads 13, 15 are in engagement with the elements whilst the heads 12, 14 are free therefrom. The cable thus becomes twisted in opposite directions as it passes through the apparatus.  Fig. 3 (not shown) shows a modified embodiment in which there are more than two of the associated pairs of stranding heads between the stationary guide heads 11, 16. In Fig. 4 the stranded material is guided within the twisting section by stationary guideheads 32 to 35. Each of the guideheads 32 to 35 comprises two oppositely positioned rolls having axes which include an acute angle with the stranding axis such that rotational movement imparted to the strand by the stranding heads is not hindered by the guideheads 32 to 35. A guide rail 36 can be used to swing the guideheads 32 to 35 to a different angle of inclination. Fig. 5 shows how the elements 1 can be prestranded by pulleys 40, 41, 42 before the stranded cable passes through the guide head 11. The pulleys 40-42 are rotated in every instance oppositely with respect to the direction of rotation of the particular stranding head 22 or 23 engaging the material e.g. in Fig. 5 opposite to that of the stranding head 22.
Patent GB-1525937-A (GB)
Title: Toner compositions
IPC: G03G9/087
Filed: 1975-11-26
Abstract: 1525937 Polyester/polyamide electrostatic toners XEROX CORP 26 Nov 1975 [19 Dec 1974 (2)] 48597/75 Heading C3R [Also in Division G2] An electrostatic toner comprises a polyamide (P) and a polyester (Q), where (P) is the reaction product of an alkylene or arylene diamine with a dimer or trimer of an unsaturated fatty acid, and (Q) is the reaction product of either (i) a diol and a dicarboxylic acid or (ii) a diol, a polycarboxylic acid, and an alkylene or arylene oxide and/or a glycol. The wt. ratio (P)/(Q) may be from 1/9 to 9. The respective MWs of (P) and (Q) may be 1000-10,000 and 100- 18,000 and their softening points 80-200‹ C. and 40-150‹ C. The blocking temperature of the composition may be 130-150‹ F. Particle size of the toner is 1-30 Ám. Conventional carrier particles, e.g. magnetic or triboeleetric, of size 60-120 mesh (USS) may be present, there being, e.g. 0À5-10 parts by wt. toner per 100 parts carrier. Alternatively, ferromagnetic material may be included in the toner. Also present in the toner may be conventional pigments dyes, and other additives. In use, a latest electrostatic image is developed by application of the toner, and this may then be bonded in place or transferred to a copy sheet by application of heat and/or pressure.
Patent GB-996503-A (GB)
Title: Process for the preparation of aqueous brines
IPC: B01F1/00
Filed: 1962-12-28
Abstract: An aqueous brine, especially sodium chloride brine, is prepared by maintaining a body of crystals of the solute of the brine in contact with a saturated solution of the solute, removing a portion of the crystals and saturated solution, and dissolving the removed material in an aqueous body, for example a dilute aqueous brine, to form the brine.  Ths thus-formed brine may be clarified separating insoluble impurities, for example by flowing the brine under gravity through a settling zone.
Patent GB-1528987-A (GB)
Title: Brake disc for use in a disc brake assembly
IPC: F16D65/847
Filed: 1975-11-27
Abstract: 1528987 Centrifugal fans KNORR-BREMSE GmbH 27 Nov 1975 [18 Dec 1974] 48900/75 Heading F1C [Also in Division F2] A radial flow fan having blades 17 is arranged radially inwardly of air ducts 6 extending through a friction ring of a brake disc. The blades 17 may be pivotable about a pivot 31 near the intake side 12. Stops 38 limiting the angle of incidence to a few degrees see Fig. 4. In Fig. 5 each blade is tiltable about axis 36 displaced from intake side 12.
Patent GB-1415352-A (GB)
Title: Yarn package and method and apparatus for its winding
IPC: B65H65/00
Filed: 1972-10-27
Abstract: 1415352 Winding transfer tails RHONEPOULENC-TEXTILE 27 Oct 1972 [29 Oct 1971] 49698/72 Heading D1J A method of winding a yarn package comprises rotating a support 4, guiding a yarn 1 past a portion of its periphery, reciprocating a yarn guide forward and backward parallel to the support axis so that the guide engages the yarn shortly before the end of its forward path and moves it against a yarn engaging member 6 on the yarn support so that a length of yarn with a helix of one hand is wound on the support, this length being clamped under the next winding in a helix of the other hand as the guide moves back hence forming a tail and subsequently guiding the yarn to form a main winding on the support. A cutting edge 8 is placed in the path of yarn movement downstream of the yarn engaging member 6 to cut the yarn and hence form an end.
Patent GB-1398347-A (GB)
Title: Prostaglandin intermediates
IPC: A61K31/557
Filed: 1973-03-30
Abstract: 1398347 Cyclopenta[b]pyran derivatives UPJOHN CO 30 March 1973 [27 April 1972] 49950/74 Divided out of 1398346 Headings C2C and C2P Optically active novel cyclopenta[b]pyran derivatives of the formula or racemates thereof, wherein R x  is C 2-10  alkyl optionally substituted by 1 or 2 fluorine atoms, with the proviso that R x  is not n-pentyl are prepared by hydrolysing optically active compounds of the Formula XXXVII or racemates thereof, wherein R 6  is C 1-18  alkyl, aralkyl, cycloalkyl or aryl and THP is 2-tetrahydropyranyl under acidic conditions. The cyclopentane derivatives of Formula XXXVII are obtained by condensing the corresponding alkoxy-methylenetriphenylphosphoranes with cyclopenta[b]furans of the formula prepared reducing the corresponding lactones, which are made by etherifying the corresponding dihydroxy compounds, resulting from the hydrolysis of the appropriate 3α-benzoyloxy-5α- hydroxy - 2# - (3 - hydroxy - trans - 1 - alkenyl)- 1α - cyclopentaneacetic acid γ - lactones, obtained by reducing the corresponding 3α- benzoyloxy - 5α - hydroxy - 2# - (3 - oxo - trans - 1- alkenyl - 1α - cyclopentaneacetic acid γ-lactones, which are prepared by the Wittig alkylation of 3α - benzoyloxy - 2# - formyl - 5α - hydroxy - 1α- cyclopentaneacetic acid γ-lactone with the appropriate dialkyl-2-oxoalkylphosphonates. Phosphonates of the formula are obtained by reacting dimethyl methylphosphonate with esters of the formula wherein R 1  is methyl or ethyl.
Patent GB-1179839-A (GB)
Title: Digital to analog converter
IPC: G06G7/19
Filed: 1968-10-23
Abstract: 1,179,839. Digital/analog converter; pattern recognition. INTERNATIONAL BUSINESS MACHINES CORP. 23 Oct., 1968 [24 Nov., 1967], No. 50211/68. Headings G4H and G4R. A binary input word U 1 -U 120  (Fig. 1) controls switches S 1 -S 120  connected to sense lines SL 1 -SL 120  selectively coupled to drive lines DL 1 -DL 6  which receive weighted signals so that at the output terminals of the operated switches analogue signals are generated. In the embodiment described m capacitive or inductive matrices are sequentially pulsed by parallel weighted signals from their associated voltage dividers 16 1 -16 m  connected to the outputs of a ring counter 26 until the output signals applied to amplifier 14 reach a required level so that the last matrix pulsed represents the input word. Preferably four of the switches S 117 -S 120  are always closed so that at each output signal from ring counter 26 the combined output signal from these four switches represents the matrix from which the analogue voltages are being read out via switches S 1 -S 116 . When the matrix representing the input signal is read out an equal but opposite voltage is generated by the combined outputs of switches S 1 -S 116 , the zero level being detected by level detector 18 which stops via gate 22 the supply of pulses to counter 26. The arrangement may be used in character or speech recognition.
Patent GB-1264018-A (GB)
Title: Container flow divider apparatus
IPC: B65G47/71
Filed: 1969-10-14
Abstract: 1,264,018. Conveying containers. BARRY WEHMILLER CO. 14 Oct., 1969 [7 Feb., 1969], No. 50521/69. Heading B8A. Container handling apparatus comprising first conveyer means 9 for moving a stream of containers C along a predetermined path S1, second conveyer means 17 movable along a path S2 divergent relative to the first conveyer means and control means 30, 32 co-operable with the first and second conveyer means to yieldably engage every other one of the containers carried by the first conveyer means, the alternate containers in the stream being maintained in the stream by the pockets of the second conveyer means. The control means comprises upper and lower plates 30, 31, each formed with a series of circumferentially spaced pivotally mounted plates 32. The inward movement of each plate 34 is resiliently cushioned by the action of a flange 37 on the plate 32 which abuts a respective spring 40 carried on a rod 38 having an abutment 39 for the other end of the spring. The rod 38 is carried by a block 36 rigid with the plate 30. In operation, alternate containers C in carriers of the conveyer 9, are each engaged by a surface 34 of successively arriving plates 32 and is thereby pushed out into a carrier 22 of the conveyer 17. The remaining containers C on the conveyer 9 tend to be maintained in their' pockets on the conveyer 9 by the action (momentarily) of the leading sides of the carriers 22 (see container CA-2 in Fig. 1 in relation to adjacent carrier 22: of conveyer 17). As shown, the containers are supported on rails 13 in conjunction with a side guide rail G (Fig. 3). In a modification (Fig. 4, not shown) the containers may be supported on rotating corner plates at the points of transfer.
Patent GB-1323767-A (GB)
Title: Arrangement for the synthetic testing of the breaking capacity  of high-voltage power circuit-breakers
IPC: G01R31/333
Filed: 1970-10-27
Abstract: 1323767 Testing switches LICENTIA PATENT - VERWALTUNGS GmbH 27 Oct 1970 [29 Oct 1969] 50998/70 Addition to 1263733 Heading G1U In the circuit-breaker testing arrangement of Specification 1263733, the high voltage oscillatory circuit Fig. 2 providing the additional transient voltage includes a further capacitor C w  and shunting resistor R w . The decay in the voltage across C w  after the spark gap F 3  has been fired provides a gradually increasing boost to the recovery voltage appearing across the tested circuit breaker P.S., and this compensates for an unwanted droop in this voltage characteristic which would otherwise occur.