baber/WOPTO huggingface dataset:
Patent GB-912541-A (GB)
Title: Cephalosporin c compounds
Inventor: ABRAHAM EDWARD PENLEY
IPC: C07D501/40
Filed: 1958-03-17
Abstract: The invention relates to Cephalosporin CA compounds, being modifications of Cephalosporin C and having the general formula:- <FORM:0912541/IV (b)/1> wherein R is a heterocyclic weak tertiary base (i.e. a heterocyclic compound having a weakly basic tertiary nitrogen atom as a member of a heterocyclic ring system and being a weaker base than ammonia).  The tertiary base may have acidic e.g. carboxylic additional basic e.g. amino or sulphonamido substituents. Typical tertiary bases are pyridine, collidine, quinoline, nicotinic acid, nicotinamide, pyrimidine, thiazole or a sulphonamide derivative of any of the aforesaid bases.  The Cephalosporin CA compounds are prepared by treating Cephalosporin C in aqueous solution with a heterocyclic weak tertiary base, as hereinbefore defined, for an extended period of time.  Preferably the pH should not exceed pH 7.0. Heating for 2 to 6 days at 37 DEG C., or for 18 hours at 50 DEG C., is suitable.  The aqueous solution of the heterocyclic weak base may have a molarity of at least 1.0.  The Cephalosporin Ca compounds have anti-bacterial activity and low toxicity, being particularly effective against Staphylococcus aureus especially the sulphonamide derivatives.
Patent GB-256157-A (GB)
Title: Improvement in resonator device for violins and like stringed instruments
IPC: G10D3/02
Filed: 1926-03-30
Abstract: 256,157. Hessel, I. March 30, 1926. Violins &c. with internal resonating strings and coils ; sound-posts; tuning- pins an straining- elements; tail-pieces. -A violin &c. having an internal resonator device 15 responsive tc the vibrations produced by the strings, has also a pair of sound-posts 28 movable into or out of contact with the back 12 to vary the resonance. The resonator device may comprise the several lengths 17 of a single coil-spring mounted in a frame, or separate coil-springs of different diameters, or strings. The sound-posts 28 are pivoted to the resonator frame and are connected by a spring which frictionally retains them but permits their separate movement. A rotary damper may operate selectively on the different resonating-lengtbs 17, and comprises a shaped head 22 with peripheral strand 23 of wool, turned by a nut 21. The tonal qualities of the instrument may be further varied by varying the tension of the strings by a screw 32 mounted in the tail-piece and capable of engagement with the belly 11.
Patent GB-768077-A (GB)
Title: Recovery of chloronitrobenzenes
IPC: C07C201/16
Filed: 1955-03-24
Abstract: Chloronitrobenzenes, particularly 3-chloronitrobenzene and 2,5-dichloronitrobenzene, are obtained from mixtures comprising essentially isomeric mono- and di-chlorinated nitrobenzenes by treating the mixture with oleum to preferentially sulphonate the 2- and 4-chloronitrobenzenes, which are then eliminated as their water-soluble sulphonates by treatment with water.  The sulphonation is effected using oleum of from 1-30 per cent or more strength (free SO3) in the temperature range of 40-120 DEG  C., preferably between 70 DEG  and 95 DEG  C., and the weight ratio of oleum to the mixture of chlorinated nitrobenzenes is between 0.5 : 1 and 10 : 1.  Mixtures of chlorinated nitrobenzenes are subjected to fractional distillation to remove nitrobenzene and then crude 3-chloronitrobenzene, leaving a still residue which after sulphonation to eliminate 2- and 4-chloronitrobenzenes consists essentially of dichloronitrobenzenes and a little 3-chloronitrobenzene, which are separated by fractional distillation and 2,5-dichloronitrobenzene obtained from the still residues by fractional freezing.  The original crude 3-chloronitrobenzene fraction is subjected to fractional freezing at temperatures up to 40 DEG  C. to yield pure 3-chloronitrobenzene together with drip oils, which are then sulphonated as before to eliminate 2- and 4-chloronitrobenzene and leaving the 3-isomer. Detailed examples are given.  U.S.A. Specification 1,759,554 is referred to.
Patent GB-472758-A (GB)
Title: Apparatus for the magnetic separation of materials
IPC: B03C1/22
Filed: 1936-03-24
Abstract: 472,758. Magnetic separators. KRUPP GRUSONWERK AKT.-GES., F. March 24, 1936, No. 8795. Convention date, April 17, 1935. [Class 72] In a magnetic separator, the material to be treated is fed on to the upwardly moving part of an endless band passing round a number of separating rollers or drums containing electromagnets, the band being vibrated in a vertical direction so as to loosen the material and facilitate the separation of the magnetic and non-magnetic material into superimposed layers, the non-magnetic material being uppermost and discharged first from the band at the delivery end of the separator. The band 6 passes over rollers 4, 5, having stationary disc-shaped poles 7, 8 within and mounted on shafts 14, and the material is fed on to the upward run of the band by an inclined shoot 3, which may be corrugated, on to which it is fed from a hopper 1 by a vibrating plate 2. The band is vibrated by rods 12, 13 provided with rollers and mounted on the ends of a lever 11 mounted on a pivot 10 which is rocked by a lever 22 having an aperture 21 for the pivot 20 of a roller 18, the latter being turned by contact with a non-circular plate 15 mounted on the shaft 14. The plate 2 is operated by a lever 17 carried by the roller 18, the contact between roller 18 and the disc 15 being maintained by a spring 19. The band 5 may be of channel shape, and the non-magnetic material passes down a shoot 23 and into a hopper 24, and the magnetic material into a hopper 25. In a modification which is intended for wet separation, the material is moistened before being fed on to the band, and further moistening means provided over the other end of the band. The material on leaving the band is then passed into the wet separating apparatus described in Specification 416,534. Instead of the arrangement shown, the band may be vibrated by other devices such as alternating current magnets.
Patent GB-1466345-A (GB)
Title: Method for the remote transmission and indication of electrical measured values in electrolysis cells
IPC: H04Q9/00
Filed: 1974-02-27
Abstract: 1466345 Remote interrogation of electrolysis cells BAYER AG 27 Feb 1974 [27 Feb 1973] 8855/74 Heading G4H The invention relates to the remote interrogation of electrolysis cells, and the remote control of functions associated therewith by means of a data transmission system employing a maximum of four signal lines. In the embodiment shown, a central station computer 69 is linked by signal routing units 39 to electrolysis cells each containing a number of checkpoints and control devices 67. There are three modes of operation: (1) Cyclic interrogation: a pulse train is sent from the digital output 71 of the computer through units 39 to signal routing circuits 38; a pulse routing circuit 73 recognizes the pulse train and passes it via path 74 to increment a counter 75 whose outputs operate an address decoder 65 which in turn controls a checkpoint selector 4. Analog measured values (D.C. voltages representing, e.g. current consumption of the individual anodes of a cell) from the checkpoints are fed sequentially by 4 to a voltage-current converter 13, then through 38 and 39 to the analog input 70 of the computer; (2) Selective interrogation: checkpoint and cell addresses are fed from 76, 77 to a series distributer 78 which routes the checkpoint address through the appropriate unit 39. This passes via 38 to circuit 73 which sends it via series/parallel converter 63 to the preset inputs of counter 75; (3) Remote control: this is effected as in (2), but now the address decoder selects a device 67. The system is such that at most four (and preferably two) wires are required to connect a cell to the central station. The analog measured values may be converted to digital form if required. Means are provided for ensuring synchronism between the central station and the counters in the remote stations. The system may incorporate a self-monitoring facility using calibrated voltage sources, and other means for testing for faulty operation. The measured values may be displayed by an array of light emitting diodes (Fig. 5, not shown).
Patent GB-429310-A (GB)
Title: Improvements in railway or tramway crossings or the like
IPC: E01B7/12
Filed: 1934-03-21
Abstract: 429,310. Railway and tramway crossings &c. SUMMERSON & SONS, Ltd., T., and WRIGHTSON, S. S., York Street, Darling- ton. March 21, 1934, No. 8856. [Class 104 (i)] In railway and tramway crossings, frogs, &c. in which the rails 1, 2 are held in spaced relation by transverse metal rods 3 passing through the webs of the rails, the rods are welded to intermediate collars &c. 4 abutting against the rail webs and fixed thereto by welding &c. The crossing may be supported laterally by brackets 7 projecting from the sole plate 6, and preferably welded to plates 8, which may be welded to the rail webs. In the form shown in Fig. 3, the collars &c. are replaced by tubes 9 cut away at the top to facilitate welding.
Patent GB-1273872-A (GB)
Title: Method of making glycine
Inventor: COLBURN CHARLES STOREY
Filed: 1970-02-24
Abstract: 1,273,872. Preparation of glycine. CHATTEM DRUG & CHEMICAL CO. 24 Feb., 1970, No. 8862/70. Heading C2C. Glycine is prepared by ammonolysis of a monochloroacetic acid (MCA) moiety in an aqueous medium using ammonia in the presence of hexamethylene tetramine (HMT) by (i) forming a reaction mass containing an aqueous solution of HMT, glycine and NH 4 Cl, (ii) cooling the reaction mass to effect co-crystallization of glycine and NH 4 Cl, (iii) separating an aqueous phase containing HMT from the solid phase resulting from co-crystallization, (iv) recycling the aqueous phase containing HMT for use in the preparation of additional quantities of glycine, and (v) recovering glycine from the solid phase by selectively solubilizing the NH 4 Cl, such that the amount of aqueous phase recycled is adjusted to maintain the proportion of water in the ammonolysis reaction substantially constant.
Patent GB-594155-A (GB)
Title: Improvements in or relating to air conditioning or circulating apparatus
IPC: F24F6/06
Filed: 1945-04-11
Abstract: 594,155. Portable ventilating units. LIPTON, B. April 11, 1945, No. 8966. [Class 137] In a portable ventilating unit a fan 5 is mounted in a tunnel like structure formec in the upper part of a cabinet 1, the lower wall 9 of the struc ture separating t h e fan from a bottom compartment contain ing a trough 2 filled with water or other liquid, into which dips through the opening 15 in the wall 9 an endless belt 12 carried on a pulley 8 attached to the motor-shaft of the fan. The inlet opening is provided with a detachable filter screen 14 and the outlet opening with heating elements 20 disposed behind a screen or grid 7.
Patent GB-659845-A (GB)
Title: Improvements in dredging apparatus
IPC: E02F7/02
Filed: 1949-04-01
Abstract: 659,845. Dredgers. VERSCHURE & CO'S. SCHEEPSWERF EN MACHINEFABRIEK N. V. April 1, 1949, No. 8981. Convention date April 16, 1948. [Class 113 (ii)] The dredger hull 5 is pivotally attached at its stern to a main pontoon 6 which is anchored in the channel. Conveyers 12, 13 transfer the dredged soil from the dredger to the main pontoon, and conveyers 14, 15 supported by an auxiliary pontoon 9, transfer the soil to the bank 17.
Patent GB-482406-A (GB)
Title: Improvements relating to ladder webbing or venetian blind tape
IPC: D03D1/08
Filed: 1937-03-30
Abstract: 482,406. Woven fabrics. CARR & SONS, Ltd., J., and REDMAN, J. March 30, 1937, No. 9004. [Class 142 (iv)] Relates to ladder webbing or Venetian blind tape with webs a, b of different colour including warp threads 1 to 9 connected by binder straps c, comprising warp threads 10 to 17. Each binder warp thread such as 10 where it is bound into a web by passing under a web weft thread, such as 23, has a plurality of adjacent web warp threads 1, 2 floated over the same and an additional weft thread. These adjacent warp threads tend to conceal the binder strap warp thread and prevent its colour being visible on the face of the web. One web may be of the same colour as the binder strap. One or both webs are so woven that the twill weave thereof does not change in direction for the number of warp ends covered by the binder strap warps.
Patent GB-1183998-A (GB)
Title: Means for Dispensing Controlled Volumes of Adhesive
Inventor: RUUD GUNNAR
IPC: B05C11/10
Filed: 1968-02-26
Abstract: 1,183,998. Coating apparatus. G. RUUD. 26 Feb., 1968 [27 Feb., 1967; 22 March, 1967], No 9121/68. Heading B2L. [Also in Division B8] Apparatus for dispensing measured quantities of an adhesive in a semi-liquid state onto a cardboard blank e.g. in the manufacture of boxes comprises a slide member 3 with at least one dispensing chamber 4 and a channel 6 connected to a compressed air supply (not shown). When the slide is in its dispensing position compressed air is introduced to the channel 6 to "shoot" the adhesive onto the cardboard blank. A heating element 10 and a thermostat element 11 together with a control device (not shown) retain the adhesive in its semi-liquid state. In an alternative embodiment (Fig. 3) the dispensing member 15 includes a plurality of chambers 17 which co-operate, when the member 15 is rotated, with apertures 20. A thermostatically controlled heating element is provided. Means is provided for the synchronisation of the rotation of the member 15, supply of compressed air, and feed of cardboard blanks.
Patent GB-747669-A (GB)
Title: Improvements relating to the manufacture of footwear
IPC: B29D35/10
Filed: 1953-04-02
Abstract: 747,669. Making rubber-soled footwear. SUTTON & SON, Ltd., E., JOHNSON, J. W., and WHITTAKER, E. March 31, 1954 [April 2, 1953], No. 9218/53. Class 17 (2). All or part of the lower edge of an upper 5 for a rubber-soled shoe is perforated and such perforations 6 may be nicked as at 6a, Fig. 1. The upper on a last, with or without an insole or filler 8 of cork or felt and a sock lining 9, and with a strip 7 of unvulcanized rubber around its inner edge is then placed in the well formed between the upstanding marginal flange 11 of a rubber sole, or by a rubber strip secured to the edge of such sole, and the parts vulcanized together, in the course of which rubber flows through the perforations 6 to key the parts together. Where an insole is provided, this too may be perforated and bonded to the sole during vulcanization.
Patent GB-681153-A (GB)
Title: Improvements in and relating to electric lighting systems for vehicles
IPC: B60Q1/18
Filed: 1949-04-05
Abstract: 681,153. Supply systems for vehicle lighting. BRITISH THOMSON-HOUSTON CO., Ltd., GRIFFITHS, L., and FARDON, G. E. March 8, 1950 [April 5, 1949], No. 9254/49. Class 38 (iv). To allow the use of a further lamp S, such as a spotlight, without causing any material dimming of the headlamp 4, in a vehicle lighting system of the kind described in Specification 602,773 in which the headlamp is supplied directly from an engine-driven alternator 1, which in conjunction with a rectifier 3 and battery 2 also supplies the side- and tail-lamps 7-8, a switching system T is provided whereby the lamp S may be connected in series with the headlamp. The alternator has a constant current characteristic over a wide speed range and the resistances of the lamps 4, S are substantially equal. A resistance R may be in series with the rectifier 3 to prevent it being overloaded when lamp S is in use. In a modified arrangement lamp S is wired permanently in series with the headlamp and a two-pole switch allows simultaneous shortcircuiting of lamp S and resistance R.
Patent GB-368543-A (GB)
Title: Improvements in or relating to hair curling tongs
IPC: A45D1/02
Filed: 1931-03-27
Abstract: 368,543. Hair-curling appliances. CRAMP, H., 30, Southdene Gardens, Ilford, Essex. March 27, 1931, No. 9386. [Class 131.] A pair of curling tongs comprises a grooved limb 4, and a hollow cylindrical limb 1 adapted to be filled with hot water through an inlet 7 by a piston 10 operated by a handle 11. The limbs are hinged together at 3 and are provided with handles 5, 2.
Patent GB-901054-A (GB)
Title: Indenting tool
IPC: H01R43/042
Filed: 1961-03-15
Abstract: 901,054. Indenting pliers. BURNDY CORPORATION. March 15, 1961 [March 21, 1960], No. 9393/61. Class 61. Pliers for indenting electrical connectors on conductors comprise a ram 3 movable in a frame 1, a movable die block 20 having a connector receiving opening 21 and disposed between the ram and the frame which provide cam surfaces 31, 32, a number of indentors 23 carried by the block 20 and movable in radial cut-outs therein into the opening 21 under the influence of said cam surfaces and means coupling said frame block and ram together so that the block is moved in the same direction as the ram but through a reduced distance, whereby the indentors are all moved equal amounts by the cam surfaces. A fixed handle 2 is secured to the frame 1. A movable handle 4 which is spring-biased into open position is pivoted at 5 to the ram 3 and at 7 to a pair of toggle links 6. A pawl 8 mounted on the pin 7 co-operated with ratchet teeth 9 on the handle 4 to ensure complete closure of the handle before it may be re-opened. A pair of racks 10 mounted on the frame 1 are connected to a pair of racks 12 mounted on the ram 3 by a pair of pinions 15 which are coupled to the die assembly 16. Each cut-out in the die assembly accommodates a wire indentor 23 and a shroud indentor (not shown). A pair of springs 25 mounted on the die block 20, engage in grooves in the indentors, thereby biasing the indentors away from the connector bore 21. A cup 19 mounted on the die carrier 16 is adapted to receive an inserted connector and to act as a depth stop therefor.
Patent GB-493077-A (GB)
Title: Improvements in and relating to the manufacture of ropes and the like
IPC: D07B3/06
Filed: 1937-04-02
Abstract: 493,077. Wire ropes. WHITECROSS CO., Ltd., and LLOYD, H. D. April 2, 1937, No. 9432. [Class 109] The core-drum-frame rotating gear of the machine described in Specification 354,329, is interconnected with a covering machine by substantially positive change speed gear, preferably of the infinitely variable type. This enables the degree of overtwist imparted to different parts of a length of wire rope to be readily adjusted or equalized and permits the relative speed of rotation of covering machine and core-frame bobbin to be varied to accommodate different diameters of rope. In one arrangement a clutch a on the countershaft b of the covering machine c is coupled by a chain e and chain wheels d, f to a shaft g connected to a change speed gear h. Another shaft i is connected by gearing j, k, m, n to a shaft 6. The shafts g, i are connected by a belt h<3> passing over a pair of pulleys h<1>, h<2>, each having a pair of conical opposing faces. The flanges of one pulley are moved apart as the flanges of the other approach so that the tension of the belt is unaltered while a variation in speed ratio is obtained. The shaft 6 carries a sliding dog y, capable of engaging, alternatively, dogs on loose bevel wheels o, p in gear with a bevel on a shaft 5 which is connected by gears r, t and worm and wormwheel v to the core-bobbin-frame s. The core 20 may be wound on its bobbin prior to gearing from a shaft w.
Patent GB-173532-A (GB)
Title: Improved means for mixing hydrocarbon spray and air in internal combustion engines
IPC: F02M29/02
Filed: 1920-10-18
Abstract: 173,532. Wilson, A. E. Oct. 18, 1920. Cylinders, pipes for.-A charge-mixing device comprises a carrier plate c of the same shape as and bolted between the flanges of the carburettor and induction pipe, the plate being perforated and having mounted thereon a stud b which carries a fan a. The fan preferably faces the carburettor, and a sheet of gauze may be inserted between the plate c and one of the flanges. The plate may be provided with short tubular projections which enter the induction pipe.
Patent GB-473836-A (GB)
Title: Improvements in or relating to oscillators for scanning or like purposes
IPC: H03K4/34
Filed: 1936-03-31
Abstract: 473,836. Transformers. FERRANTI, Ltd., and ANDERSON, E. G. O. March 31, 1936, No. 9480. [Class 38 (ii)] [Also in Group XL] In scanning-oscillators of the kind in which the back-coupling transformer of the valve oscillator also forms the scanning-magnet, the iron core includes a shunt path in parallel with the gap in which the cathode-ray tube is situated. The grid coil 4 and the anode coil 5 are both wound on the core of the scanning- magnet 7. The core, which may be laminated has its ends turned inwards towards the neck of the cathode-ray tube 8, and comprises a shunt path 14 with or without an adjustable gap. The mean position of the scanning-ray may be shifted by providing a separate permanent magnet or electromagnet ; or direct current may be fed to one or both of the coils 4, 5 or to an additional winding.
Patent GB-714881-A (GB)
Title: Process and apparatus for the deposit of narrow coated zones such as magnetic sound tracks on cinematographic films or other strips
IPC: G11B5/633
Filed: 1952-04-16
Abstract: 714,881. Kinematograph films bearing sound tracks. PYRAL SOC. AR.L. April 16, 1952 [July 19, 1951], No. 9548/52. Class 98(2) [Also in Group VIII] One or two magnetic sound tracks may be deposited as a liquid coating on kinematograph film by a web-coating apparatus [see Group VIII]. As shown, a single track p, Fig. 9, may be deposited on the picture area of a film f with one row of perforations, or one or two tracks p, Fig. 11, may be deposited outside the perforations on a 16 or 35 mm. film.
Patent GB-1094495-A (GB)
Title: Comminution apparatus
IPC: A47J43/04
Filed: 1966-03-04
Abstract: 1,094,495. Comminuting machine. K. SCHNELL, [trading as KARL SCHNELL MASCHINENFABRIK]. March 4, 1966 [March 11, 1965], No. 9560/66. Heading A4C. Meat, bread or other material to be comminuted is fed through inlet 11 into hopper 5 in which it is mixed by agitator 10 and subjected to a pre-comminution cutting by one or more tools 13 comprising cuting blades preferably rotating in an open-ended cylindrical casing 14 terminating at a distnce 15 from the hopper wall 16. The coarse-cut product is then fed via flap-valve 18 to a fine-comminuting machine 1 comprising knives 3 rotating against perforated plate 2. The agitator 10 and its associated driving mechanism is mounted on a hinged lid 6 and the whole apparatus may be hermetically sealed and evacuated to allow of air-free operation.
Patent GB-1529563-A (GB)
Title: Frequency search circuits
IPC: G01S13/58
Filed: 1958-03-19
Abstract: 1529563 Electromagnetic and inductive field communication pulse modulation BRITISH AIRCRAFT CORP (OPERATING) Ltd 19 March 1958 [22 March 1957] 9579/57 Heading H4L In a Doppler radar system a range of frequencies is scanned and the search circuit distinguishes between noise and the regular signal to which it must "lock on". The input signal at the receiver is amplified to a predetermined stabilized level, by an automatically operated gain control. The stabilized level amplitude is greater than the amplitude of the regular signal but is less than the noise peak amplitude. Thus, noise is detected when occasional noise peaks overswing the stabilization level and as these instants pulses, of fixed duration, are produced. The pulses are applied to a spectrum analyser which is stepped from one frequency band to the next by each pulse and the frequency search continues until pulses cease to be produced, that is, when the required regular signal is reached. Where the required signal has a variable frequency, changes in frequency are "tracked" by an automatic frequency control loop which produces a D.C. control voltage after the required signal has been found. Alternatively, the first differential of the input signal may be employed to produce the control pulses, the noise signal differential having a larger amplitude than that of the required signal. In a further arrangement, a predetermined level is chosen near the zero of the amplified signal. With this, the regular required signal, the envelope does not approach zero while the noise signal has frequent near-zero values which cause control pulses to be generated.