baber/WOPTO huggingface dataset:
Patent GB-758496-A (GB)
Title: Process for purification of antibiotic 106í¬7, and the resin complexes obtained thereby
Filed: 1954-09-08
Abstract: Antibiotic 106-7 is purified by contacting a solution thereof having a pH of 5 to 12 with a strongly basic quaternary ammonium anion-exchange resin deriving its capacity from quaternary amine groups on the hydroxyl cycle to adsorb said antibiotic and eluting the adsorbed antibiotic with a solution containing anions, the antibiotic being recovered from the eluate.  Examples of suitable resins are "Amberlites" (Registered Trade Mark) IRA400, IRA140, XE98 and XE58, "Permutit" (Registered Trade Mark)-S "Ionac" (Registered Trade Mark), A-293 and Dowex 2.  They are converted to the hydroxyl cycle by washing with an alkaline solution such as aqueous sodium hydroxide followed by a water wash.  Elution is by means of (a) solutions of organic or inorganic acids, e.g. aqueous solutions of acetic, propionic, carbonic, hydrochloric and sulphuric acids; (b) basic solutions, e.g. aqueous quaternary ammonium hydroxides, aqueous sodium hydroxide, potassium hydroxide and ammonium hydroxide; and (c) aqueous solutions of salts such as sodium chloride, sodium sulphate, potassium chloride and calcium chloride.  The antibiotic is recovered from eluate fractions of pH 7 to 4.5 in the case of acid solutions, and pH 7-14 in the case of basic solutions.  The resin containing the adsorbed antibiotic 106-7 may be washed and dried directly to yield an antibiotic-resin-complex useful as a therapeutic agent or animal feed supplement.  Specifications 757,089, 757,090 and 758,500 are referred to.ALSO:As an animal feed supplement is used a complex of antibiotic 106-7 and a strongly basic quaternary ammonium type of anion exchange resin deriving its capacity from quaternary amine groups present in the polymer and prepared by mixing the resin with a solution of the antibiotic, or by passing a solution of the antibiotic down a column of the resin, separating the resin-complex, washing and drying (see Group IV (b)).  Examples of the resins are "Amberlites" (Registered Trade Mark) IRA-400, IRA-410, XE-98, XE-75, XE-58, "Permutit" (Registered Trade Mark) S, "Ionac" (Registered Trade Mark) A-293 and Dowex 2. Specifications 757,089, 757,090 and 758,500, [all in Group IV (b)], are referred to.
Patent GB-792664-A (GB)
Title: Improvements in and relating to electric signalling systems
Inventor: FELIX MICHAEL OTTO
IPC: H04W84/02
Filed: 1953-09-21
Abstract: 792,664. Automatic exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. July 20, 1954 [Sept. 21, 1953], No. 26036/53. Class 40 (4). [Also in Group XL (c)] Automatic exchanges are interconnected by a frequency-modulated radio link. A frequency shift from the normal speed carrier frequency f1 to frequency f2 constitutes the calling signal. A dialled impulse is transmitted as a frequency shift from the signalling frequency f2 to the speech carrier frequency f1 and back to f2. Reply is signalled by a called exchange to the called terminal as a battery reversal and is transmitted over the link as quickly following frequency shifts from f3 to f4 to f5 to f3 when f4>f3>f5 and f3 is the central frequency normally transmitted by the called terminal. This signal is repeated to the calling exchange as battery reversal and the transmitter's frequency is automatically restored to f1. Calling exchange and link terminal, Fig. 1. In a call from exchange 10, line relay A is followed by B which starts the transmitter 14. With battery 18 connected to the transmitter, the frequency is shifted from the normal f1 to f2(f2>f1). Relay A responds to impulses and shifts the frequency back to f1 for each impulse. Called exchange and link terminal, Fig. 2. The receiver 24 is tuned to a band on a central frequency f and just including f2. After a delay, a trigger 32 operates and relay VS pulls up. Marginal relay AA follows if the received frequency is f2, in which case, the Foster- Seeley frequency discriminator 27 gives a maximum positive output within the pass-band of the receiver and the loop to the exchange 19 is closed. The negative output of 27 is cutoff by rectifier 33. Relay BB follows AA and starts transmitter 23 at frequency f3. Relay AA repeats impulses to exchange 19 and dialling relay CD shorts the hybrid during each digit. Relay D pulls up when battery is reversed on reply and by connecting terminal 49 to the transmitter raises the frequency from f3 to f4 until relay DB pulls up after a delay. Terminal 51 is then connected to the transmitter to drop the frequency to f5. The frequency rises again to f3 when relay SD4 pulls up, after a delay, and holds. Calling exchange, reply. Relay RS, like VS in Fig. 2, responds to the transmission after a delay. Relay FP responds to frequency f4 which produces a positive output from the discriminator 39. When frequency f5 follows and produces a negative output, relay FN pulls up and, as FP is slow to release, DD pulls up, reverses battery 16 on the line to exchange 10 and restores the transmitting frequency at 14 from f2 to f1. Battery reversal may operate a meter at exchange 10.
Patent GB-671075-A (GB)
Title: Improvements in or relating to the manufacture of keys for rotary cylinder locks
IPC: B21D53/42
Filed: 1949-10-11
Abstract: 671,075. Punching. UHER, E. Oct. 11, 1949 [Oct. 21, 1948], No. 26049/49. Class 83 (iv). Flat keys for rotary cylinder locks are made by punching from metal blanks, or a continuous metal strip, the active portions of different heights in successive operations, means being provided for locating the blank &c. step-bystep in accordance with the spacing of the active portions. The invention is shown applied to keys having serrations on both edges to actuate the tumblers of the lock in both directions without the use of springs. As shown in Figs. 2 to 5, pairs of punches 7, 7a ... 10, 10a with trapezoidal cutting edges 23, are carried by a plate 26 and are adapted for slide movement in recesses 24 of a base-plate 11. The punches are guided between notched dies 12 secured to the plate 11. The step-bystep insertion of the key is determined by lugs 18a, Fig. 3, acting as stops for the end of the key, projecting from a plate 18 which is adjustably spaced from the edge of the plate 11. The adjusting-means comprises slides 15 traversing the plate 11 and carried by extensions 16 of the plate 18. The slides 15 are provided with staggered rack-teeth 19, 19a, Fig. 4, to co-operate with plates 20 engaging slots in the base-plate 11 and actuated, against the reaction of springs 69, by the descent of the bar 26 in the operative stroke of the punches. The bar 18 is urged away from the plate 11 by springs 17 to actuate the slides 15. Fig. 6 shows a modification for producing the key-webs from a continuous metal tape. As shown, the tape 30 is fed through a frame 32 from which the units are severed by a punch 35 co-operating with a fixed die 34. The frame 32 is recessed at 38 to house a slide 37 in which is housed a second slide 39 carrying a pin 40 for successive engagement with holes 41 along the tape 30. The stroke of the slide 37, which may be effected by pneumatic or electric means (not shown), is controlled by abutment of a stop 41 on the slide with stops 43 ... 46 connected by levers 47 ... 50 to selectively-operated keys 51 ... 54. The slide 39 is formed with ratchet-teeth 56, 57 which co-operate with spring-controlled dogs 63, 64 mounted respectively on a sliding bar 58 and the slide 37. It is stated that the apparatus may be automatically controlled by means of a cam-controlled device and, that means may be provided for automatically numbering the punched webs and for recording on a paper web the identifying number of the key.
Patent GB-319913-A (GB)
Title: Improvements in and relating to sound records
IPC: G11B3/70
Filed: 1928-09-11
Abstract: 319,913. Chmielowski, A., and Vavrina, H. Sept. 11, 1928. Records, materials for ; combined phonographic and kinematographic records.-Sound records are made by the direct action of a stylus on a disc, cylinder, or band of gelatine, which is subsequently hardened by treatment with an alcoholic solution of formaldehyde. Before and after engraving the sound-grooves the surface is preferably lubricated with a fatty substance. Records thus produced are suitable for use on an ordinary reproducing-machine, duplication by moulding being dispensed with. A sound record may, in accordance with the invention, be made on the gelatine of a kinematograph film.
Patent GB-349393-A (GB)
Title: Improvements relating to foot arch supports
IPC: A43B7/22
Filed: 1930-09-01
Abstract: 349,393. Foot-arch supports. SCHOLL MANUFACTURING CO., Ltd. and SCHOLL, F. J., 188, St. John Street, London. Sept. 1, 1930, No. 26054. [Class 81 (ii).] In foot-arch supports of the kind comprising a curved metal plate a, the forward end of which is protected by a detachable pad or plate b, the pad b is secured by studs e on the plate a projecting intc holes c, in the pad, of two diameters Nuts f, having notched edges for engagement by a turn-key, or spring washers, are secured to the studs and occupy the larger portions of the holes c. The pad b may be of leather, fabric, or other material and may be reinforced by metal plates d, having holes for the studs e and inserted between split layers of the material which are then again united by adhesive. Alternatively the studs e may carry washers in addition to the nuts f. Specification 268,414, [Class 81 (ii), Medical &c. appliances], is referred to.
Patent GB-458523-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B62D31/00
Filed: 1935-09-20
Abstract: 458,523. Vehicle bodies and opening- tops. PRESSED STEEL CO., Ltd., Cowley, and CLAY, W. H., Woodstock Close, both in Oxford. Sept. 20,1935, No. 26082. [Class 108 (i)] In a vehicle body preferably constructed of sheet metal the rear or tonneau panel is extended forwardly to constitute the major portion of the roof. As shown applied to a sheet metal body having a roof opening closable by a sliding panel the body comprises side panels 11, roof header panel 14, cowl panel 13 and a rear panel 12 which is extended forwardly to the rear 16 of the roof opening being welded to the side panels 11 along the lines 18. The sides of the roof opening are provided with drain channels 28 which are extended and attached under the rear panel 12 sealing means 30 carried by a channel member 31 being provided. Specification 447,385 is referred to.
Patent GB-1425702-A (GB)
Title: Pattern control system
IPC: G05B19/408
Filed: 1972-06-05
Abstract: 1425702 Automatic control of textile machinery SHORELL Ltd 4 June 1973 [5 June 1972] 26207/72 Heading G3N [Also in Division D I ] Data defining a multi-colour pattern for a carpet tufting, or knitting machine is stored in disc or magnetic core store 28 which is addressed by counter 35 actuated in synchronism with the machine to transfer data defining a row of the pattern to shift register 31 whence it is available in parallel form on leads 37 to control yarn or tuft supply to the machine. Each possible colour for a stitch is represented by a three bit binary code, there being a fourth bit to give a parity check {odd}. The pattern may repeat within each row in which case each data bit is fed to a plurality of needles. The store 28 may contain data of a plurality of patterns, a manual switch causing only those addresses for one of the patterns to be used. Tuft height of the pattern is controlled. Decoders 33 are gated by counter 34 whose operation is synchronized with the machine, substore 30 being provided to ensure that the data passed from store 28 is available to shift register 31 in accordance with its input characteristics. Data preparation, Fig. 2 (not shown). The pattern information is binary coded and punched on to tape, distinct codes being punched to define the end of a row, and of the pattern. The tape is read to pass the data to the shift register (13), used as unit 31 during control, whence the data is clocked serially into the disc store (11) along with the row address from counter (12) controlled by the tape reader. Data can be transferred from the disc (11) to a tape for storage. Tufting machine details. A plurality of rollers 27, are coupled via electromagnetic clutches 27' to a drive, and control yarn feed or tension, each roll pair being associated with a plurality of yarns. The rollers are driven in accordance with the data to provide a row of loops, the pile height thus being varied, possibly steplessly, in accordance with the data. There may be a solenoid operated clamping device (not shown) controlling the yarn tension, and hence the amount fed to the rollers. In Fig. 4 (not shown) each of the plurality of pairs of rollers (38) are selectively coupled via clutches (39), (40), or (41) to give one of three different rotational speeds, thus allowing selection of one of three pile heights. Colour data controls, for each needle, tuft or yarn feed (16), Fig. 1 (not shown) containing solenoid actuators cutting a length of yarn of the required colour fed via pneumatic feed (19') to the needle (20). Synchronizing means. Disc 32a rotates with the machine and carries apertures, or transparent or reflecting regions 32b,e controlling passage of light from a source (not shown) to photo-cells 32c,d enabling counters 35, and 34 respectively. Regions 32b,e are adjustable in position, and micro-switches may be used.
Patent GB-262359-A (GB)
Abstract: 262,359. White, A. E., (Beloyt Corporation). June 4, 1925. Mounting bodies. - A flexible disc 38 is bolted at opposite points a to a bracket 40 attached to the body to be supported and at points intermediate the points a to a bracket 35 attached to the vehicle frame. A similar support is attached at the other side of the body. Preferably the flexible coupling is of the construction described in Speci. fication 197,536, [Class 108 (iii), Springs &c.].
Patent GB-674807-A (GB)
Title: Compounds of phenyl ethyl barbituric acid with bases and the manufacture thereof
Filed: 1950-10-27
Abstract: The invention comprises the combination in equimolecular proportions of 5-phenyl-5-ethylbarbituric acid and an organic base of the general formula <FORM:0674807/IV (b)/1> wherein R1, R11, R111 stand for hydrogen o methyl.  The compounds may be obtained by reacting the acid and base with or without solvent, e.g. alcohols, acetone, ethyl acetate, ether or chloroform, or by reaction in an organic solvent followed by precipitation by diluting with water or by reacting salts of acid and base.  Examples describe the preparation of salts of 5-phenyl-5-ethyl-barbituric acid with (1) 1-phenyl-2-amino-propane; (2) 1-(31,41 - dimethyl - phenyl) - 2 - amino - propane (from the corresponding sodium salt and hydrobromide respectively); (3) 1-phenyl-2-methyl-amino-propane; (4) 1-(41-methyl-phenyl)-2-amino-propane.
Patent GB-1187805-A (GB)
Title: A Sliding Current Lead for Seam Resistance-Welding Machines
IPC: B23K11/36
Filed: 1967-06-07
Abstract: 1,187,805. Welding by pressure. M. P. DASHKEVICH. 7 June, 1967, No. 26289/67. Heading B3R. [Also in Division H2] A sliding current lead for electric seamwelding machines comprises a non-rotating sliding contact 13, a current-loading bus-bar 1, and a working electrode 9 secured on a rotating supporting shaft 6, the non-rotating sliding contact being disposed between the working electrode and the bus-bar and being pressed against the working electrode by an elastic current conducting member 12 connecting the contact 13 to the bus-bar 1. The currentconducting member 12 is an elastic conducting diaphragm whose internal edge is welded to the bus-bar and whose external edge presses against the sliding contact 13 which is made in the form of a disc. Cooling fluid is passed through channels 17-23 to cool the external surfaces of the working electrode.
Patent GB-1433255-A (GB)
Title: Bandsaw machine
IPC: B23D55/08
Filed: 1973-06-01
Abstract: 1433255 Bandsaws AMADA CO Ltd 1 June 1973 [7 June 1972] 26323/73 Heading B5L In a bandsaw machine the saw blade 3 is carried by a head 1 which is lowerable towards a support 9 to cut a workpiece M thereon, and means is carried by the head which contacts the workpiece when the saw blade is adjacent thereto so controlling the lowering speed of the head that it is greater during idle action of the saw blade than during cutting action thereof. As described the workpiece contacting means is a rod 41 movable vertically relative to the head to actuate valve means and switch means to control the lowering speed of the head by hydraulic means and also to limit the extent by which the saw blade is lifted from the workpiece after each cutting operation. ' The rod 41 is guided by rollers 33, 35, 37, 39 on a saw blade guide arm 15. Its lower end carries an angled plate 43 adjacent the blade 3 and its upper end carries a plate 45 for engagement with a microswitch 49 and the tappet 47t of a check valve 47. The valve 47 is in parallel with a flow control valve 51 in a passage 53 leading from an hydraulic cylinder 13, for raising and lowering the cutting head 1, via a valve 63 to a pump 55.  In operation the head is raised and a workpiece M clamped in vice jaws 29. The head is then lowered rapidly by allowing fluid to escape from the cylinder 13 via the check valve 47 and valve 63 to a reservoir, until the plate 43 contacts the workpiece. This causes the valve 47 to be closed and fluid to escape at a controlled rate from the cylinder 13 via the valve 51, as the saw blade cuts through the workpiece. When the blade reaches its lowest position motor 57 for the pump 55 is energized and a solenoid 65 for the valve 63 activated to cause fluid to be pumped to the cylinder 13 to raise the head 1. When the plate 43 is lifted from the workpiece the plate 45 operates the microswitch 49 which cuts off the motor 57 and deactivates solenoid 65 to stop raising of the head. A time limit relay 61 is included in the circuit to the motor 57 and solenoid 65 to ensure that the blade 3 is raised sufficiently above the workpiece M to allow the latter to be fed forward for further cutting without fouling the blade or the plate 43.
Patent GB-303559-A (GB)
Title: Means for use in hanging or supporting garments
IPC: A47B61/00
Filed: 1927-10-06
Abstract: 303,559. Harvey, G. H. Oct. 6, 1927. Brackets, securing, - A fitting for supporting garments in a wardrobe &c. consists of a plate member having upper and lower serrated edges, one or both of them being bent over, to receive at desired positions a number of garment supporting arms. In the construction shown, each arm or bracket 8, on which garments may be supported directly or indirectly by the usual hangers, is pivotally attached to a wire member 10 which is hook shaped at its upper end to engage behind a plate 5 secured to a wardrobe &c., the upper edge 6 of the plate being rearwardly bent and serrated for this purpose. The lower end of the wire member 10 is bent at 12 to engage serrations formed in the fonvardly bent lower edge 7 of the plate 5. The plate 5 may be mounted for swing- ing movement or combined sliding and swinging movement.
Patent GB-865378-A (GB)
Title: Improvements in and relating to chlorinated polymers
Inventor: PINNER SOLOMON HARRIS
IPC: C08J7/18
Filed: 1956-08-30
Abstract: Rigid or semi-rigid compositions based on vinyl chloride polymerization products are made by blending a mixture of a vinyl chloride polymerization product and an essentially nonvolatile polymerizable unsaturated monomer having a plasticizing action on the polymer, and then subjecting the resulting mixture to the action of ionizing radiation such as high energy electrons, gamma rays and X-rays, whereby the unsaturated monomer is converted to a polymeric form which has a reduced plasticizing action on the vinyl chloride polymerization product.  The polymerization product may be polyvinyl chloride or a copolymer of vinyl chloride with vinyl acetate, vinylidene chloride, vinyl caprate or vinyl laurate.  The plasticizing monomer may be lauryl, nonyl or ethoxy ethyl methacrylate, allyloxyethyl or lauryl acrylate, octyl or nonyl maleate or fumarate, diallyl phthalate, adipate, sabacate, terephthalate, isophthalate or maleate, triallyl cyanurate or trimellitate, tetra-allyl pyromellitate, orthoallyl phenyl allyl ether, bisallyl diethyleneglycol carbonate, a methylallyl or crotonallyl ester or ether, ethylene dimethacrylate, glyceryl triacrylate, diethylene glycol dimethacrylate, polyethylene oxide dimethacrylate, divinyl benzene, trivinyl benzene, divinyl napththalene or methylene-bis-acrylamide.  The mixture may also contain before irradiation plasticizers, fillers and heat and light stabilizers such as a low molecular weight butadiene-acylonitrile copolymer, dioctyl phthalate, carbon black, dibutyl tin dilaurate, dibasic lead carbonate, calcium stearate, or glass fibres.  A blowing agent may be incorporated in the blend which is cast, trowelled or lightly gelled into sheet form, irradiated on both sides to harden the surfaces, and then heated to liberate gas from the blowing agent, when a flexible foam sandwiched between rigid sheets results.ALSO:In the production of rigid or semi-rigid compositions based on vinyl chloride polymerization products by blending a mixture of a vinyl chloride polymerization product and an essentially non-volatile polymerizable unsaturated monomer having a plasticizing action on the polymer, and then subjecting the resulting mixture to the action of ionising radiation such as high energy electrons, gamma rays and X-rays, whereby the unsaturated monomer is converted to a polymeric form which has a reduced plasticizing action on the vinyl chloride polymerization product (see Group IV(a)), a blowing agent may be incorporated in the blend which is cast, trowelled or lightly gelled into sheet form, irradiated on both sides to harden the surfaces, and then heated to liberate gas from the blowing agent, when a flexible foam sandwiched between rigid sheets results.  Alternatively, one surface only may be irradiated.
Patent GB-836606-A (GB)
Title: Improvements in and relating to electrical two-part connectors
IPC: H01R13/595
Filed: 1956-08-30
Abstract: 836,606. Two-part couplings. FOX, B. Aug. 30, 1956 [Aug. 30, 1955], No. 26557/56. Class 38 (1). A plug or socket connector of the type described in Specification 722,644 in which the plug PC and socket SC are assembled from identical parts, i.e. core blocks 20, end caps 21 and bifurcated contacts 23 retained in cavities 22, a U-shaped handle 30 secured thereto by a bolt 24 passing through aligned apertures in the parts of the connector body. The ends of the handle 30 are pressed against end caps 21 by a clamp 33 having tabs 34 which abut opposite sides of the caps 21 to prevent rotation of the handle about the bolt. In a connector having twenty or more contacts the units are mounted in two or more stacks (Fig. 9, not shown). In the embodiment of Fig. 12 a U- shaped combined cover and handle 38 encloses the wires 39, end clamps 40 being mounted on the cover by inturned edges 41, a tongue 42 formed on flange 43 of cap 40 interfitting with a hole 44 in cover 38. A wire retaining clamp 45 consists of two parts 46 and has tongues 48 movable in slots 49 in cover 38. An earthing clip 50 may be provided (Fig. 14), and has a flange 51 to fit cap 40 to prevent rotation of the former on bolt 24A and fingers 53 which engage the surface of the cover of a mating connector. In a further embodiment (Figs. 16-18, 19-21, not shown) units are mounted in two or more stacks and have a cover and end clamps as before. In a modification (Fig. 18A) the metal end clamps 56A and U-shaped metal cover 55A have flared ends to surround contacts 23. Specification 793,881 also is referred to.