baber/WOPTO huggingface dataset:
Patent GB-1168266-A (GB)
Title: Fastening Assembly and a Clip therefor
Inventor: MEYER ENGELBERT ANTHONY
IPC: F16B5/12
Filed: 1966-10-25
Abstract: 1,168,266. Spring clips. WARREN FASTENER CORP. 25 Oct., 1966, No. 47910/66. Heading E2B. A one piece sheet metal clip has a longitudinal top 20 from opposite sides of which depend two longitudinally disposed resilient catch members 42 for engagement with a stud 22 projecting from a surface of a support, and from which also depend four legs 62, one at each corner, the two legs at one side, and'the two at other, of a longitudinal central plane of the clip being bridged by longitudinal outwardly curved runners 64 for engagement with inturned flanges 12 of a channel-shaped trim strip 10, whereby the clip can be accommodated within the trim strip with its top abutting a central portion of the strip and its runners engaging the inturned flanges and the strip attached to the surface of the support by frictional engagement of the catch members of the clip with the projecting stud 22. In the construction shown the catch members are provided with inwardly and upwardly opposed catches 46 formed by bending but in a modification the catches are formed by making an inverted U shaped cut out in each catch member and bending the catches so defined inwardly and upwardly. The top is provided with a rectangular opening from the end edges of which locating stops 44 extend downwardly and towards each other, the stops correcting for small inadvertent errors in the positioning of the clip in the trim strip, by engaging the stud. The stud described is formed from a sheet metal stamping by bending so that it has a base which can be welded to the support and a head which has a bottom frusto conical part and a top frusto conical part. A stud provided with a screw threaded tapering portion depending from its base and with a screw driver slot in its top surface is also described, this stud being intended to be attached to the support by threaded engagement with a hole; this stud is intended for repair work instead of initial manufacture.
Patent GB-963422-A (GB)
Title: New aromatic amino compounds
IPC: C07C209/60
Filed: 1962-12-20
Abstract: The invention comprises compounds of formula: <FORM:0963422/C1/1> wherein the substituents shown are in m- or pposition and R1 and R2 are residues (attached by their nuclear carbon atoms) of a carboxylic arylamine or arylene diamine optionally alkylated or halogenated in the nucleus and/or alkylated or arylated on the nitrogen atom. In examples R1=R2=4-aminophenyl or 4-N-methylaminophenyl. The compounds are produced by reacting at least 2 mols of the appropriate arylamine or arylenediamine with 1 mol of either (a) the diisopropenylbenzene or (b) a compound of the above formula wherein R1 and R2 are both halogen, hydroxyl, alkoxy, aryloxy or acryloxy.  The required starting material (h) may be obtained by reacting a halogen (e.g. Cl2 or Br2) with the diisopropylbenzene and then if desired reacting the dihalide with the appropriate alcohol, phenol or carboxylic acid, under alkaline conditions, or with an aqueous solution at pH2 (when R1 and R2=OH).ALSO:p- and m-diisopropenylbenzenes are produced by dehydrogenation, dehydration or dehydrohalogenation of the corresponding diisopropyl-benzenes, dicarbinols or dihalides, respectively.
Patent GB-1333080-A (GB)
Title: Push-pull amplifier
IPC: H03F3/26
Filed: 1970-10-09
Abstract: 1333080 Transistor amplifiers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 Oct 1970 [13 Oct 1969] 48156/70 Heading H3T A transistor amplifier comprises four transistors T 1 -T 4  and three diodes T 5 -T 7  arranged substantially as shown and a capacitor connected between the collectors of T 3  and T 4 . The feedback to the input of the amplifier T 1 , T 2  via transistors T 3  and T 4  from the diode-connected transistor T 5  sets the quiescent current of the amplifier at a desired level and prevents the transmission of common mode inputs. At high frequencies the capacitor C effectively connects the collectors of T 3  and T 4  so that T 1 , T 6  and T 2 , T 3  act as two "current mirror" circuits having a relatively lower gain. Roll-off is thus effected with one time constant. Resistors may be connected in series with the emitters of T 3 , T 4  and T 5 .
Patent GB-1522100-A (GB)
Title: Bidirectional filter circuit
IPC: H03H7/46
Filed: 1976-11-23
Abstract: 1522100 Filter networks CHLORIDE GROUP Ltd 23 Nov 1976 [24 Nov 1975] 48803/76 Heading H3U A bidirectional filter circuit having substantially constant input and output impedance characteristics over the desired frequency range comprises: (i) a low-pass network comprising two identical filter sections 10,11 with a symmetrical all-pass network 14 between them; (ii) two identical compensating networks 12, 13, having reciprocal characteristic functions with respect to sections 10,11; (iii) a highpass network comprising two identical filter sections 15, 16 interconnected by a symmetrical allpass network 19; and (iv) two identical compensating networks 17, 18, having reciprocal characteristic functions with respect to sections 15, 16. Networks 10-13, 15-18 comprise passive circuit elements (Figs. 2a, 2b not shown) and networks 14, 19, which serve to isolate their corresponding filter sections, are constructed by resistive pads. Compensating networks 12, 13, 17, 18 each have a terminating resistance equal to the input and output impedance of the filter circuit.
Patent GB-1491254-A (GB)
Title: Halogenated bipyridyls
IPC: C07D213/61
Filed: 1974-11-12
Abstract: 1491254 Halogenated bipyridyls IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Oct 1975 [12 Nov 1974] 48879/74 Heading C2C Halogenated optionally substituted bipyridyls are prepared by the liquid phase reaction of an optionally substituted bipyridyl with a chloro- or bromo-alkane as the source of Cl or Br atoms. Suitable bipyridyls are the 2,2<SP>1</SP>-, 4,41- and 2,4<SP>1</SP>-types. The haloalkane preferably has 1-3 C atoms, e.g. CCl 4 . A reaction temperature of 200-400‹ C. is usually maintained and a pressure of 500-1500 lbs./sq. inch, especially autogenous pressure. A molar excess of haloalkane, e.g. 20-60, over the bipyridyl is preferably employed. Amongst the examples 2-chloro-, 2,2<SP>1</SP>-dichloro- and 2,2<SP>1</SP>,6-trichloro- 4,4<SP>1</SP>-bipyridyl are produced.
Patent GB-1106670-A (GB)
Title: Slidable boom foot lug for a crane
IPC: B66C23/72
Filed: 1966-11-01
Abstract: 1,106,670. Jib cranes. RUSTON-BUCYRUS Ltd. 1 Nov., 1966 [10 Dec., 1965], No. 48885/66. Heading B8B. A mobile crane comprises a conventional crawler 1, a tower 2 mounted thereon and a boom 5 the foot of which is slidably mounted on a pair of rails 10 attached to the front of the tower. The flanges 12 of the T cross-section rails 10 have a plurality of spaced holes 13 and slidably mount the lugs 17 of a cross-bar 14, which bar 14 has holes 18 for alignment with the holes 13 whereby by the use of bolts 19 the bar may be looked in one of a plurality of vertical positions. The cross-bar has two pairs of ears 21 to receive the boom foot and pins 24 extend therethrough to secure the boom to the bar. A cable 8 attached to the boom foot extends over a pulley 9 to a winch mechanism (not shown) for raising and lowering of said boom foot. To dismount the crane the boom tip is lowered to the ground by a suspension cable 6, the boom foot is then lowered against a stop 26, the pins 24 withdrawn and the crawler 1 reversed whereby the boom foot can be lowered to the ground. The suspension cable 6 is now attached to the top of the tower and on releasing the struts 4 the tower may be lowered for transportation purposes.
Patent GB-1284669-A (GB)
Title: Sulfamoyl-1,3,4-thiadiazoles and their use as agricultural pesticides
IPC: A01N47/36
Filed: 1970-10-16
Abstract: 1284669 Sulphamoyl-1,3,4-thiadiazoles AIR PRODUCTS & CHEMICALS Inc 16 Oct 1970 [17 Oct 1969 2 Oct 1970] 49315/70 Heading C2C Novel 1,3,4,-thiadiazoles of the formula in which R 1  is hydrogen or a C 1-7  acyclic hydrocarbon radical optionally substituted by halogen, hydroxy, cyano or C 1-7  alkoxy groups, R 2  is as R 1  or a C 1-7  alkoxy group, R 3  is hydrogen or a C 1-7  acyclic hydrocarbon radical, R 4  is hydrogen, a C 1-7  acyclic hydrocarbon radical or a cycloalkyl group containing up to 7 carbon atoms, and R 5  is hydrogen, a cycloalkyl group containing up to 7 carbon atoms or a C 1-7  acyclic hydrocarbon radical optionally substituted by halogen, hydroxy, cyano or C 1-7  alkoxy groups, provided that R 1  and R 2  are not both hydrogen and R 4  and R 5  are not both hydrogen or cycloalkyl, and, when R 3  is hydrogen, the metal, ammonium and amine salts and the tautomers of the formula are prepared (i) by condensing sulphonyl chlorides of the formula with amines HNR 1 R 2 , (ii) reacting amines of the formula with (a) an isocyanate R 5 NCO, (b) a carbamoyl chloride ClCONR 4 R 5  or (c) phosgene and subsequently an amine R 4 R 5 NH, (iii) reacting an isocyanate of the formula with an amine R 4 R 5 NH and (iv) alkylating compounds in which R 3  is H, or the alkali metal salts thereof, with an alkyl halide R 3 X. Examples describe the preparation of a variety of 1,3,4-thiadiazoles. 2 - Amino - 1,3,4 - thiadiazole - 5 - N,N dimethylsulphonamide is obtained by acylating 2 - amino - 5 - mercapto - 1,3,4 - thiadiazole with acetic acid, treating the resulting 2-acetamido-5- mercapto - 1,3,4 - thiadiazole with Cl 2  in acetic acid to obtain 2-acetamido-5-chlorosulphonyl- 1,3,4-thiadiazole which is condensed with dimethylamine and the resulting 2-acetamido-5- N,N-dimethylsulphonamido-1,3,4-thiadiazole hydrolysed to the required amino compound. 1 - Methyl - 3 - (5 - chlorosulphonyl - 1,3,4 - thiadiazol-2-yl) urea is obtained by reacting 2- amino - 5 - mercapto - 1,3,4 - thiadiazole with methyl isocyanate and chlorinating the resulting 1 - methyl - 3 - (5 - mercapto - 1,3,4 - thiadiazol - 2- yl) urea. 1,3 - Dimethyl - 3 - (5 - chlorosulphonyl - 1,3,4 - thiadiazol - 2 - yl) urea is prepared by treating 5-methylamino-2-mercapto- 1,3,4-thiadiazole with NaOH/I 2  to obtain di-5- (2 - methylamino - 1,3,4 - thiadiazolyl) disulphide which is reacted with methylisocyanate and the resulting di - 5 - [1,3 - dimethyl - 3 - (1,3,4 - thiadiazol - 2 - yl)urea]disulphide treated with Cl 2  in acetic acid. The novel 1,3,4-thiadiazoles possess herbicidal properties and are used in conventional methods for pre- and post-emergence of weeds.
Patent GB-1220222-A (GB)
Title: A rotary knob adapted to be mounted on a wall
IPC: G05G1/12
Filed: 1967-10-31
Abstract: 1,220,222. Stud and socket fastenings. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 31 Oct., 1967 [3 Nov., 1966], No. 49461/67. Heading E2B. A rotary knob 1 adapted to be rotatably mounted in an aperture 6 in a wall 2, comprises a body portion having a cavity 7 and a projecting cylindrical sleeve 5 to engage the aperture, and a spring wire clip 8 comprising a part 22 which lies in the cavity and engages behind projections 15, 16 on the wall thereof, and two limbs 9, 10 which extend through openings 20, 21 in the wall of the sleeve to engage behind the edge of the aperture in the wall when the knob is mounted thereon. As shown, in which the knob 1 may be used to operate a shaft 32 of a temperature control device on a smoothing iron, the free ends of the spring project outwardly of the collar to snap engage shoulders 13, 14 of the aperture 6.
Patent GB-1394953-A (GB)
Title: Drawing instruments
IPC: B43L9/00
Filed: 1973-10-24
Abstract: 1394953 Templet C G MARTINEZ 24 Oct 1973 [20 Dec 1972] 49474/73 Heading B6P A drawing instrument includes a circular templet having recesses in its periphery to permit engagement with a ring having complementary flanges for aligning with the recesses. The ring is rotatably mounted on a support member having a circular opening concentric with the ring, when mounted thereon. The support member has bearings which hold the ring and support member concentric and may be shaped to prevent axial separation of the ring and support member. The templet has at least one hole alignable with at least one hole in the support member to permit a pin prevent their relative rotation.
Patent GB-1094096-A (GB)
Title: Film synchroniser
Inventor: MARSDEN HARRY
IPC: G03B31/04
Filed: 1964-12-04
Abstract: 1,094,096. Two-part couplings. ROBERT RIGBY Ltd. Dec. 3, 1965 [Dec. 4, 1964], No. 49563/64. Heading H2E. [Also in Division G5] An interchangeable magnetic head 17<SP>1</SP> is mounted in a sound-film synchronizer (see Division G5) by entering a plug 16<SP>1</SP>, offset from the line of the head 17<SP>1</SP> into one or other of two sockets 14<SP>1</SP>, 15<SP>1</SP>, four positions for the head 17<SP>1</SP> being achieved by reversing the plug 16<SP>1</SP> in the socket. The plug 16<SP>1</SP> carries a printed-circuit member 26<SP>1</SP> by which electrical connections are made to the head 17<SP>1</SP>.
Patent GB-1064562-A (GB)
Title: Means for the production and emission of polarised light
Inventor: AGDUR NILS BERTIL
IPC: G02B5/30
Filed: 1963-12-19
Abstract: 1,064,562. Electric incandescent lamp filaments. KOOPERATIVA FORBUNDET EKONOMISK FORENING. Dec. 19, 1963 [Dec. 21, 1962], No. 50194/63. Heading H1F. An element adapted to emit polarized light when heated to incandescence, e.g. by the passage of an electric current, has a series of parallel portions the dimensions of which, in a direction across the portions and transverse to the direction of parallelism, are of the same order of magnitude as the wavelength of the light required. The portions may be in the form of ridges rising from a plate or cylindrical wire made of tungsten, molybdenum or platinum, or a series of thin wires placed parallel to each other on a plate. Alternatively the portions may be formed by a relatively thin wire spirally wound on a thicker wire. Preferably the distance between adjacent portions is also of the same order of magnitude as the wavelength of the emitted light. In a further embodiment (Fig. 3, not shown) the element comprises a series of circular plates (31, 32 . . .) in face-to-face abutment, adjacent plates having different refractive indices and/or diameters and the thickness of the plates, and their transverse dimensional differences, if any, being of the same order of magnitude as the wavelength of the emitted light. The plates may be made of different metals, or a metal may alternate with a semi-conductor.
Patent GB-1241547-A (GB)
Title: Liquid fuel injection pumping apparatus
Inventor: MOWBRAY DORIAN FARRAR
IPC: F02M41/14
Filed: 1967-11-06
Abstract: 1,241,547. Fuel injection pumps. C.A.V. Ltd. Oct.25, 1968 [Nov. 6, 1967], No. 50291/67. Heading F1A. In a fuel injection pump substantially of the type described in Specification 1,223,118, but for a six cylinder engine with unequal firing angles, the cam has two sets of three equiangularly disposed lobes, corresponding lobes of the respective sets being spaced at 45 degrees from each other, the inlet ports 30, 31 are spaced at 45 degrees and the three inlet passages 26 are equiangularly disposed so that injection occurs at unequal intervals of distributer angles of 45 degrees and 75 degrees alternately.
Patent GB-1112433-A (GB)
Title: Manufacture of ergosterol
IPC: C07J75/00
Filed: 1965-11-26
Abstract: Ergosterol is obtained in a process wherein 24(28)-dehydroergosterol or an ester or an ether thereof, is reacted in the presence of an inert organic solvent with an alkyl aluminium compound of the formula <FORM:1112433/C2/1> in which R1, R2 and R3 indicate the same o different, saturated or unsaturated, linear or branched alkyl radicals or R1 may be hydrogen, the primary product produced is hydrolysed and the resulting ergosterol or ether thereof is isolated.
Patent GB-1081489-A (GB)
Title: Improvements in or relating to alarm bells
Inventor: STANWORTH GEORGE
IPC: G10K1/074
Filed: 1963-12-20
Abstract: 1,081,489. Bells. THOMAS ASHWORTH & CO. Ltd. June 3, 1964 [Dec. 20, 1963], No. 50516/63. Heading G5J. A fire-alarm bell comprises a cast dome 12 in which are fixed an outside knob 21 and an inside spindle 14, the latter engaging in a bearing hole in a three-armed cast spider base 10. Cast protuberances are provided inside the rim of the dome 12 which strike against a loosely mounted roller 24 when the knob 21 is rotated by hand, and cause sound to be emitted. The roller 24 is carried on a pin 23 and its motion is limited by a stop 27. The arm of the base which carries the roller is distinctively shaped or marked and is arranged symmetrically below the other arms when mounting the bell on a vertical surface (Fig. 1, not shown). The weight of the knob (21) returns the dome (12) after use to a position where the internal protuberances (26) are evenly disposed away from the roller (24) and a cast word " FIRE " is upright. An arrangement is also described in which a striker is mounted on an arm rotatable about an axis parallel to that of the dome.
Patent GB-1134884-A (GB)
Title: Method and apparatus for planing continuously cast steel slabs
IPC: B23D79/00
Filed: 1965-11-29
Abstract: 1,134,884. Planing. YAWATA IRON & STEEL CO. Ltd., and DAIWA HEAVY INDUSTRY CO. Ltd. 29 Nov., 1965 [2 Dec., 1964], No. 50584/65. Heading B3L. A planing machine comprises a reciprocating work-table 4, movable on a bed 3, gate-shaped columns 5, a cross rail 7 slidable and rockable on the columns by hydraulic pistons 6, a facing cutter assembly 8 slidable on the cross rails, and a fixed side cutter 9. A template 14 is provided on each side of the table and is shaped to conform to the shape of the upper face of the workpiece 10 to be machined, so that during planing all of the upper surface will be machined. An hydraulic controller for operating pistons 6 is controlled by a follower 16 which co-operates with the template. Cutter assembly 8 comprises tool heads 21-24 which carry tools 25, 26, and the heads are moved laterally by a lead screw 18. At the end of each stroke of the work-table, each of the heads 21, 24, along with its tools, can be moved vertically, by a template and follower 27, 28, so as to remove material from the edge of the upper face of workpiece 10.
Patent GB-1095270-A (GB)
Title: Bis-(6-acylaminopenicillanyl)disulfides and salts thereof
Inventor: FRASER ROBERT ROWNTREE
IPC: C07D499/34
Filed: 1964-12-15
Abstract: The invention relates to bis-(6-aminopenicillanyl) disulphides of formula <FORM:1095270/C2/1> bis-(6-acylaminopenicillanyl) disulphides of formula <FORM:1095270/C2/2> wherein R is a specified acyl radical, and salts thereof with inorganic and organic acids. Bis-(6-aminopenicillanyl) disulphide is produced by reacting 6-aminothiopenicillanic acid (Specification 1,079,741) having its amino group protected, with iodine to form the corresponding disulphide and then removing the protecting group by catalytic hydrogenation. Bis-(6-acylaminopenicillanyl) disulphides are prepared by (A) preparing an active acylating derivative of the 3-carboxylic acid group of a penicillin acid of formula <FORM:1095270/C2/3> wherein R is acyl, and reacting the said acylating derivative with a source of sulphide ions, e.g. sodium or potassium disulphide; (B) treating a thiopenicillin of formula <FORM:1095270/C2/4> (Specifications 1,078,077, 1,079,741 and 1,078,078) wherein R is acyl, with iodine in an anhydrous solvent; (C) acylating bis-(6-aminopenicillanyl) disulphide according to procedures known per se for the acylation of 6-aminopenicillanic acid. General formulae and specific examples of a very large number of bis-(6-acylaminopenicillanyl) disulphides are disclosed. Salts disclosed include the sulphamates, maleates, acetates, citrates, oxalates, succinates, benzoates, tartrates, fumarates, malates, mandelates and ascorbates.  The penicillin disulphides of Formula II are used in pharmaceutical compositions for human and animal administration, e.g. treatment of mastitis in cattle.  They may be added to animal feeds.  They are resistant to acids and may be used orally and parenterally.ALSO:A bis-(6-acylaminopenicillanyl)-disulphide of formula:- <FORM:1095270/A1-A3/1> wherein R is a specified acyl, or a salt thereof with an inorganic or organic acid, is a nutritional supplement and may be incorporated in an animal feed.  A very wide range of acyl radicals are specified.
Patent GB-1425599-A (GB)
Title: Detector system responsive to a variable capacitance
IPC: G01R27/26
Filed: 1973-11-02
Abstract: 1425599 Bi-stable comparator circuits; oscillator circuits ROBERTSHAW CONTROLS CO 2 Nov 1973 [3 Nov 1972] 51073/73 Heading H3T [Also in Division G1] In a capacitive responsive proximity or liquid level detector the charging rates of a detecting element and a standard capacitor are compared. When the system is initially energized the capacitors 10, 14 begin to charge through resistors 18, 22 until either or both of them are charged to a level to cause either or both transistor 40, 42 to conduct resulting in transistor 44 conducting to complete a discharge path for both the capacitors. Once the capacitors are discharged the transistors 40, 42, 44 cease to conduct and the capacitors commence to recharge, the period between discharge cycles being determined by the smaller of either of the capacitors. The charging rates of the two capacitors are compared by differential amplifier 12 so that when the level of the coolant is higher than a predetermined level the differential amplifier 12 provides a positive output signal, the charging rate of capacitor 10 being less than capacitor 14. Transistors 50, 62 remain non-conducting and there is no output signal at 66. When the liquid level falls below the predetermined value amplifier 12 provides a negative output signal, the charging rate of capacitor 10 being greater than capacitor 14, which output signal causes transistors 50, 62 to conduct and an output to be provided at 66. Capacitor 56 holds transistor 50 on throughout the discharge cycle. A positive feedback resistor 60 causes bi-stable switching action of amplifier 12. The system may be checked by shorting test terminal 30 to ground. In a liquid level detector Fig. 2 (not shown) the resistor 34 is replaced by a potentiometer the wiper of which is connected to the probe capacitor and through which it charges. An analogue output may be obtained by omitting transistor 62, Fig. 5 (not shown), and taking the output from across resistor 58. The voltage regulator diode 38 may be replaced by a potentiometer network, Fig. 6 (not shown). The modified system of Fig. 3 (not shown) provides a time delay relay control of the liquid level indication and is A.C. powered. In this arrangement the standard and probe are connected to the inverting and non-inverting inputs respectively of amplifier so that a negative signal is produced at the output of amplifier 12 due to a build up of a liquid. Series capacitors (90, 92) are provided to change the total capacitance seen by the probe charging circuit so that a lower resistance charging circuit can be used. The output from transistor 50 is also fed back to input 2 to increase the charging rate for the associated capacitor so that a greater increase for the charging rate of the probe capacitor is needed. By including a second standard capacitor, charging circuit and amplifier a duplex system may be formed, Fig. 7 (not shown), in which both increase and decrease of liquid level above or below the fixed value may be monitored.