baber/WOPTO huggingface dataset:
Patent GB-429915-A (GB)
Title: Improvements in and relating to esters of dicarboxylic acids and compositions containing these esters
IPC: C07C69/34
Filed: 1933-09-11
Abstract: Non-resinous dicarboxylic acid esters of polyhydroxy compounds having only one of the carboxylic groups esterified, are prepared by reacting upon the polyhydroxy compound with an anhydride of a dicarboxylic acid in the presence of a tertiary base in the proportion of one molecule of base per molecule of anhydride. Suitable tertiary bases include pyridine, quinoline, a -picoline, dialkylaniline, hexahydrodialkylaniline, dimethyl - n - hexylamine and iso - amyldiethylamine and suitable dicarboxylic acid anhydrides include the anhydrides of phthalic, succinic, diglycollic and glutaric acids and other dicarboxylic acid whether aliphatic or aromatic, saturated or unsaturated, substituted or unsubstituted.  In examples ethylene glycol is esterified with phthalic anhydride in the presence of pyridine, or quinoline or with succinic anhydride in the presence of pyridine or hydroquinone or glycerol is esterified with phthalic anhydride in the presence of pyridine.  The products may be esterified with monohydric alcohols such as methyl or ethyl alcohol preferably in the presence of an esterifying catalyst such as dry hydrogen chloride to yield mixed esters such as glycerol trimethyl triphthalate, ethylene glycol dimethyl diphthalate, hydroquinone diethyl diphthalate, glycerol trimethyl succinate, ethylene glycol diethyl diphthalate, or hydroquinone dimethyl disuccinate.  The mixed esters are suitable plasticizers for cellulose esters and in examples (1) a film is prepared from a solution of cellulose acetate in acetone containing hydroquinone diethyl diphthalate; a moulding composition from cellulose acetate and ethylene glycol dimethyl diphthalate; a paste suitable for extrusion and the manufacture of rods from cellulose acetate, ethyl alcohol, acetone and ethylene glycol diethyl disuccinate; and artificial leather from cloth coated with a solution of cellulose acetate propionate in a mixture of ethylene chloride and methyl alcohol containing pigmented glycerol trimethyl triphthalate.  Specification 316,324, [Class 2 (iii)], is referred to.  The Specification as open to inspection under Sect. 91 refers also to the esterification of the acid esters with cellulose or cellulose esters such as cellulose acetate or aceto-propionate to yield mixed esters suitable for use in moulding compositions. The mixed esters of dicarboxylic acids, polyhydroxy compounds and monohydric alcohol may also be prepared by reacting upon an acid monobasic alcohol ester of a dicarboxylic acid with a polyhydroxy compound such as interacting ethylene glycol with ethyl acid phthalate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1091003-A (GB)
Title: Cleaning and scouring pad
IPC: A47L17/08
Filed: 1965-06-15
Abstract: 1,091,003. Cleaning pads. UNION CARBIDE CORPORATION. June 15, 1965 [July 13, 1964], No. 25154/65. Addition to 1,010,935. Headings A4F and A4R. A cleaning and scouring pad comprises a non-woven fibrous batt of non-absorbent fibres in random arrangement, the side surfaces of the batt being lightly impregnated with adhesive in an amount sufficient to bond fibres at the surfaces but insufficient to fill the voids between the fibres, the adhesive on at least one side surface being a heat sealable resin, and also on at least one side side surface containing abrasive, and the pad having a thin tapered peripheral edge comprising fibres compressed and heat sealed by the heat sealable resin. The batt may comprise synthetic thermoplastic, metallic, animal, or vegetable fibres, and may incorporate in its interstices a solid washing composition. Additionally the surfaces of the pad may be coated with a quick sudsing soap or detergent solution and the coating dried thereon.
Patent GB-843444-A (GB)
Title: Apparatus for measuring and/or regulating the glass level in melting tanks or the like
IPC: G01F23/24
Filed: 1956-08-17
Abstract: 843,444. Electric tests. GLASSWERKE RUHR A. G. Aug. 17, 1956 [Aug. 18, 1955], No. 25250/56. Class 37. The level of molten glass is determined by means of frusto conical platinum electrodes 3 whose cross-section where they intercept the surface of the glass varies with liquid level. Thus the resistance of the glass bridging the distance between the electrode changes. In order to eliminate errors due to temperature changes of the glass the electrodes may be connected in one arm of a wheatstone bridge 6 and a pair of floating electrodes 5 in another arm. The unbalance signal across the diagonal indicates or controls glass level. In a further arrangement (Fig. 2 not shown), two pairs of electrodes may be used, one connected in a bridge circuit to control the supply of frit, and the other operating a warning device if glass level rises too high.
Patent GB-947115-A (GB)
Title: Process for the production of filamentary materials of regenerated cellulose
IPC: D01F2/10
Filed: 1961-07-12
Abstract: 947,115. Viscose spinning. J. STOCKHAUSEN. July 12, 1961 [July 15, 1960], No. 25290/61. Heading B5B. In viscose spinning, there is added to the viscose or to the coagulating bath one or more amine oxides of the general formula where R 1 , R 2  and R 3 , which may be the same or different, are alkyl, alkoxy or aryl groups. Specified compounds include dimethyl laurylamine oxide, diethyloctylamine oxide, tributylamine oxide, dimethyl butylamine oxide, triosopropylamine oxide, triisooctylamine oxide, methoxyethyl methyl laurylamine oxide, dimethyl stearylamine oxide, dietheyl oleylamine oxide, dimethyl cyclohexylamine oxide, dioyclohexyl methylamine oxide and dimethylphenylamine oxide. In examples, from 0.2- 2 g/1. of an amine oxide is added to viscose which is spun in known manner. Regeneration may be effected in two stages, using a hot dilute acid bath following the coagulating bath. Spinneret incrustation and coagulating bath sedimentation are greatly reduced, and the stretchability of the filaments formed is enhanced. Where matting agents or spinning dyestuffs are added to the viscose, improved dispersion of such substances in the viscose results.
Patent GB-722957-A (GB)
Title: Improvements in contractable split clamping rings
Inventor: MACKENZIE ALEXANDER ROLF
IPC: B65D45/34
Filed: 1952-10-10
Abstract: 722,957. Container closures. PAYTER & CO., Ltd., E. C. Oct. 12, 1953 [Oct. 10, 1952], No. 25386/52. Class 125(3). [Also in Group XXV] A contractable split clamping ring 8 of the kind which is adapted to be engaged around the circular rim or mouth of a container and an associated lid and which when contracted serves by means of a wedging action to clamp the lid firmly to the container mouth, has one of a pair 9, 10 of pivotally interconnected arms secured to each free end of the split ring, one of the arms 10 having pivotally mounted on it an operating lever 13 furnished with a cam slot 14 which is engaged by a pin 15 on the other arm 9. The cam slot is shaped so that initially the free ends of the ring are brought together quickly whilst during the first movement the mechanical advantage of the lever is increased. In the closed position of the ring the end of the lever lies adjacent a bracket 18 fixed to the ring so that a sealing wire can be passed through apertures 16, 17 in the ring and bracket. The ring is of channel section with the walls splayed outwardly to provide the wedging action on the lid. The levers 9, 10 and bracket 18 are cranked so as to lie in a well in the lid.
Patent GB-1300121-A (GB)
Title: Apparatus for echo sound location, particulary for sea fishing
IPC: G01S15/10
Filed: 1970-05-27
Abstract: 1300121 Sonar apparatus FRIED KRUPP GmbH 27 May 1970 [28 May 1969] 25515/70 Heading H4D  An echo sounder with a directional transmitter radiating an angularly modulated acoustic pulse, having a broad frequency spectrum, has a receiver including means for producing a signal proportional to the instantaneous frequency of the received echo which signal is used to modulate an indicator. In a fish detector a generator 5 is frequency modulated and keyed by pulse generator 8. The pulses pass via switch 10 to a rotatable transducer 11; reflections are passed via switch 10 to coil 23 which brightens the trace on CRT 22. The echoes are also passed to threshold circuit 28 and the resulting pulses due to zero crossings in the echo are counted by integrator 26 over a time #T corresponding to the average transmitted frequency. The resultant voltage U k  is passed to differentiator 33 whose output drives the horizontal deflection plates of the CRT. If the echo is due to a single reflector 16 the voltage U k  from integrator 26 will be linear and causes a linear deflection 31 of the face. However reflections from a shoal of fish 17 will cause severe fluctuations of the echo frequency due to multiple reflections, resulting in an expanded trace 32 on the CRT. In a modification (Fig. 6, not shown), the modulating voltage (U k ) is applied to an electromagnet (38) which actuates a plunger (39) vibrating the stylus (35) of an echograph in a similar manner to the CRT trace above. The voltage U k  may also be applied to a local oscillator (44, Fig. 7, not shown), which converts the echo signals to audio frequency and to an audio amplifier producing a variation in the pitch and amplitude of the audible alarm. In a further embodiment (Fig. 8, not shown) there are two transducers (12a, 12b) which are fed with out-of-phase signals to vary the direction of the transmitter major axis (15). The phase difference of the echoes received by the two transducers is converted to a deflecting voltage which is combined with a modulating voltage U k  described as before, and applied to the CRT, thus indicating the direction of the shoal. In a further embodiment (Fig. 9, not shown) the echoes from the two transducers (12a, 12b) are combined by delaying one by 90 degrees, measuring the phase difference between them in a PSD and integrating the output. The resulting voltage is applied to the CRT. The transmitted signals may be modulated between two different frequencies or phase-inverted according to a 13-bit Barber code (Figs. 4-5, not shown).
Patent GB-616800-A (GB)
Title: Improvements in or relating to apparatus for forming hollow glassware
IPC: C03B17/04
Filed: 1945-10-02
Abstract: 616,800. Drawing glass tubes. DANNER, E. Oct. 2, 1945, No. 25521. [Class 56] In a glass tube-forming apparatus molten glass is delivered to a stationary shaping element by which it is formed into a downwardly moving tube, this tube then passing over and in contact with a stationary sizing member supported at a distance beyond the shaping element in such a manner that the glass moves for at least part of the distance between the shaping element and the sizing member out of contact with the support of the latter. In apparatus having molten glass supply arrangements, a shaping element 27, Fig. 6, and viscosity control arrangements, all as described in Specification 605,887, a sizing and shaping member 74, comprising a metal shell surrounded by graphite, is supported on the outer of two coaxial coolant tubes 33, 34 extending through the forebay and surrounded therein by a refractory shell 36, itself cooled by tubes 37 connected to annular supply and discharge boxes 39, 38, Fig. 3. The lower end of the shell 36, guided by pins 44, is vertically adjustable by screws 42 to regulate the inward flow of glass to the innermost shell of the shaping element 27, and at this point the glass may be fed with a reinforcement, such as cylindrical wire net 45, Fig. 3, or separate wires 73, Figs. 6 and 7; the wire net is guided by a torus ridge on the tube 34, Fig. 2 (not shown), and is lowered on to the latter by disconnecting the coolant pipes at 50 and engaging the collars 46 alternately by pivoted supporting arms; the wires 73 are led from spools on top of the forebay through tubes 72 supported on arms 71 extending from the tube 34. The glass may be pressed against the sides of the sizing member 74, to acquire the form of Fig. 7, by cooled smooth or knurl-faced rollers, such as 78, Fig. 6, carried on a motor-driven hollow shaft 81 connected to coolant supply and discharge pipes by universal joints 86. The finished glass tubing may be drawn downwards by two pairs of motor-driven rollers 80.
Patent GB-192439-A (GB)
Title: Improvements in or relating to electric phase regulating devices
IPC: H02K33/08
Filed: 1921-09-27
Abstract: 192,439. Baron, H., (Signal Ges.). Sept. 27, 1921. Regulation, automatic apparatus for.-A vibratory phase-regulator is connected directly or through a frequency charger to the alternating current system to be regulated. The vibratory portion of the regulator may be mounted on a spring support and it may be a coil the natural period of vibration of which is somewhat higher or lower than the frequency of the system. The regulator may be provided with a polarizing winding or windings and means are provided for eliminating the bias given to the armature due to said winding or windings. Means are also provided for preventing induced currents being set up in the direct current polarizing windings. The armature 5, Fig. 1, of a regulator adapted to vibrate in the magnet field of the poles 9, 10, is mounted on a spiral spring 8 one end of which is fixed to a member 7. When the armature is nct mounted on a spring the coil of the regulator is connected to the system through a frequency changer. The coil 13, Fig. 3, is mounted on an iron core 14 provided with a polarizing winding 17; and the armature 15 is mounted on a diaphragm 16. In a modification a magnetic system as shown in Fig. 3 is placed on each side of the armature 15 to eliminate the biasing action of the magnet sys. tem. In a further modification two magnetic systems are employed and the diaphragms are connected to an arm pivoted at its mid-point. In the arrangement shown in Fig. 7, a switch S is provided to control the circuits of the operating winding 13 and the polarizing winding 17 of the regulator. The switch S is arranged to close the circuit of the coil 13 'before the circuit of the coil 17. In the arrangement shown in Fig. 8, the operation of a four-armed switch places the winding 13 across the supply mains 1, 2, connects a battery to one end of the polarizing winding 17 and closes the circuit of a motor 30. The motor armature rotates to place a segment 42, on a barrel 35 driven by the motor, in contact with a brush 36, whereby the winding 17 is energized in series with a relay 33 the contact 40 of which is operated to open the motor circuit. A magnet 34 is also energized in series with the winaing 17 to operate a detent 44 to lock the barrel 35 in its operated position. In the arrangement shown in Fig. 10 two magnet systems are employed and the polarizing windings 17, 17<1> are connected in opposition in order to obviate the use of a choking-coil or to necessitate the use of only a small choking coil in the circuit of these windings. In a modification a magnet system comprising two magnets, one on each side of a diaphragm, is provided with one regulating coil and the polarizing coils arranged so that the induced alternating currents neutralize each other. In the arrangement shown in Fig. 12 the armature 15 vibrates in a direction approximately parallel to the pole faces of the magnet 14. The armature and pole-faces of the magnet may be ribbed.
Patent GB-828497-A (GB)
Title: Improvements in or relating to forward travelling wave amplifiers
IPC: H01J23/24
Filed: 1957-11-15
Abstract: 828,497. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Nov. 15, 1957 [Dec. 4, 1956], No. 35629/57. Class- 39(1). In a forward-wave tube, the delay line consists of a number of rings 10, Fig. 2, connected to an outer wave-guide member 1 by radial spokes 11, 12 lying in planes passing through the beam axis, and a corresponding number of filler members 13, 14 are fixed to the inner wall of the guides between the spokes. The effect of the filler members is to decrease the electro coupling between the rings as compared with the magneto coupling, thus increasing the pass-band and reducing dispersion and ensuring that the fundamental forward wave has positive dispersion. Forms with one and three sets of spokes are shown. Further improvement is obtained by providing the filler members 13, 14, Fig. 5, with inwardly-projecting ridges 32 in between the rings. As shown an electron gun 4, 6, 7 produces an annular beam passing close to the rings. The rings and spokes may be hollow for cooling. Specification 780,107 is referred to.
Patent GB-1512148-A (GB)
Title: Iodophor solution
IPC: A61P31/00
Filed: 1976-06-21
Abstract: 1512148 Iodophors DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 21 June 1976 [21 June 1975] 25706/76 Heading A5E [Also in Division C3] An iodophor solution, useful in disinfectants, comprises a mixture comprising by weight: (I) 0.5-4% of iodine; (II) 1.6-15% of a polymerisation product of glycidol; and (III) 0-30% of phosphoric acid. The balance to 100% comprises water. The wt. ratio II : I is at least 10:3. II may be a homopolymer of glycidol, e.g. having a M.W. 400-2000 and OH No. 650-800 (mg. KOH/g) or a copolymer of glycidol with up to 10% (molar) of another epoxide, e.g. having M.W. 600-1800 and OH No. 550-770. The iodophor solution may additionally comprise 0.1-4% by wt. of a C 1-3  alcohol, glycol, ether alcohol or C 1-3  carboxylic acid; 0.1-5% of H1, an alkali metal-, alkaline earth metal- or ammonium iodide; and 0.5-5% of sodium lauryl sulphate, sodium cumene sulphonate and/or an alkyl benzene sulphonate.
Patent GB-808119-A (GB)
Title: Improved process for manufacturing furfural
IPC: C07D307/50
Filed: 1957-08-15
Abstract: In a process for producing furfural by steamdigestion of a pentosan-containing raw material in the presence of a non-volatile acid catalyst, the raw material is subjected, prior to digestion, to the continuous flow of steam therethrough under a steam pressure less than that necessary to produce digestion, and then simultaneously digested and steam-distilled under a pressure greater than 20 p.s.i.g.  Suitable conditions for the preliminary treatment include steam pressures up to 20 p.s.i.g. for times of 15-75 minutes. Suitable catalysts include sulphuric acid, phosphoric acid and alkane sulphonic acids.  The pre-steaming may be effected with or without the catalyst and added moisture. Examples are given in which the pre-steaming is carried out in the same vessel or a different vessel from that used for the digestion and distillation.  Specification 203,691, [Class 2 (3)], is referred to.
Patent GB-713146-A (GB)
Title: Anti-cough agents comprising (ú½)-3-hydroxy-n-methyl-morphinane ethers and process for the manufacture thereof
Inventor: GRUESSNER ANDRE
IPC: A61K31/00
Filed: 1952-10-16
Abstract: The invention comprises ethers of (+)-3-hydroxy-N-methylmorphinane, the ether groups of which are alkyl or alkenyl containing more than one carbon atom, and acid addition salts thereof.  The ethers are prepared by treating (+)-3-hydroxy-N-methylmorphinane with an etherifying agent, particularly a compound of general formula <FORM:0713146/IV (b)/1> wherein R1, R2 and R3 represent lower alky or alkenyl radicals of which at least one contains more than one carbon atom, or an alkoxide thereof.  An unsaturated morphinane ether may be hydrogenated to the corresponding saturated derivative.  In examples: (1) phenyl triethyl ammonium methoxide and (+)-3-hydroxy-N-methylmorphinane are refluxed in toluene, and the product distilled in vacuo to yield (+)-3-ethoxy-N-methylmorphinane, which may be then converted to its acid phosphate; (2) (+)-3-hydroxy-N-methylmorphinane is treated with phenyl allyl dimethyl ammonium hydroxide to yield (+)-3-allyloxy-N-methylmorphinane, and subsequently its hydrobromide; (3) hydrogenation of the 3-allyloxy compound using palladium charcoal produces the corresponding (+)-3-propyloxy ether, which is converted to its tartrate.
Patent GB-493975-A (GB)
Title: Improvements relating to supply installations for electric discharge lamps
IPC: H05B41/34
Filed: 1937-09-25
Abstract: 493,975. Control systems for discharge lamps; flashlight photography. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 25, 1937, No. 26056. Convention date, Sept. 25, 1936. [Class 38 (iv)] [Also in Group XX] Switching control.-A gas discharge lamp 10, which may be of the metal vapour or low pressure gas discharge type, is arranged to provide momentarily increased brilliancy by short circuiting a stabilizing impedance 18 in series with it, through a timing relay 21 the time period of which is determined by a thermally variable resistance. When used for photographic purposes, the lamp 10 operates on closure of a switch 16 with sufficient intensity to permit focusing &c. of the camera. Closure of a double pole switch 25 causes short circuiting of the impedance 18 over contacts 23, 32 of the relay 21 and, at the same time, causes tripping of the camera shutter 40 over a relay 35. The coil of the relay 21 is connected to mains supply in shunt with a resistance having a positive temperature coefficient, such as a tungsten filament lamp 29, and in series with a resistance 27. On first switching in, the relay does not operate because of the low resistance of the lamp 29, the resistance of which rises rapidly and operates the relay to open the short circuit over contacts 23, 32 within a very short period, e.g. 1/20th second. The series impedance may be formed by a high reactance one-to-one ratio transformer which is shunted by the contacts 23, 32. The lamp may be flashed periodically for signalling purposes. Specification 462,500, [Group XL], is referred to.
Patent GB-660018-A (GB)
Title: Improvements in and relating to apparatus for wiping and polishing smooth surfaces
IPC: A47L13/29
Filed: 1948-10-06
Abstract: 660,018. Floor polishing pad. LINDEROTH, E. T. Oct. 6, 1948 [Oct. 20, 1947], No. 26063/48. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 7, 1949.] Class 19 A floor polishing apparatus comprises a dish-like member of elastic material, the thickness of the material decreasing towards the outer edges of the member, said member being open on the side thereof intended to be adjacent the floor during polishing and said member serving for pressing towards the floor a polishing cloth covering said side which is open, there being a handle which is pivotally secured to said member at the side thereof opposite the open side and said member having an automatically operating valve which opens when the member is pushed down against the floor, such opening being effected by the pressure inside said member becoming greater than the pressure outside the member and said valve closing when the pressure inside the member becomes less than the pressure outside said member. In the Figure a handle 4 is pivoted to the centre of a dish-like casing 1 of soft rubber or other elastic material forming a suction foot by means of a holder consisting of a top part 5 and a bottom part 6 (not shown) connected by a screw 7. Four holes 2 on the upper side of the suction foot are covered by thin rubber leaves 3, which operate as a non-return valve opening for an above-atmospheric pressure produced when the implement is pushed away from the operator and closing for sub-atmospheric pressure in the suction foot when the implement is drawn towards the operator when the pressure on the floor is increased due to the vacuum in the suction foot. The Specification as open to inspection under Sect. 91 comprises the apparatus for wiping and polishing smooth surfaces generally with optional use of the polishing cloth. This subjectmatter does not appear in the Specification as accepted.