baber/WOPTO huggingface dataset:
Patent GB-647925-A (GB)
Title: Improvements relating to the extraction and purification of an antibiotic
Inventor: POPE CLIFFORD GEORGE
Filed: 1948-05-19
Abstract: Polymyxin is recovered from a metabolism fluid containing it by treating such fluid, after removal of bacterial cells and any gummy impurities therefrom, at a pH of 4-8 (preferably about 4.5) with one or more sulphated fatty alcohols or esters or a salt or mixture of salts thereof (e.g. a mixture of the sodium salts of sulphated olefines containing 10-18 carbon atoms, the sodium and triethanolamine salts of sulphated lauryl alcohol, sodium dioctyl sulphosuccinate, lauryl sulphate, or a mixture of cetyl and oleyl sulphates).  The resulting precipitate is separated by filtration, centrifuging or gravity and freed from water, after which the active fraction thereof may be extracted with a solvent therefor (e.g. methyl, ethyl, n- or iso-propyl, n- or iso-butyl or lauryl alcohol). The polymyxin may be recovered from an ethyl alcohol extract by one of the following methods: (a) the alcohol is evaporated and the residue dissolved in water with the aid of a strong organic base (e.g. benzylamine or cyclohexylamine) with simultaneous addition of sulphuric acid to keep the pH below 9.5, then more sulphuric acid is added to bring the pH to about 2-3, the resulting complex of alkyl sulphate and organic base is extracted with a water-immiscible alcohol (e.g. butyl alcohol), and polymyxin sulphate is recovered from the aqueous phase by freeze-drying; (b) an isopropyl alcohol solution of the polymyxin-alkyl sulphate complex is treated with an isopropyl alcohol solution of a sulphate of a strong organic base to precipitate polymyxin sulphate, or with dry hydrogen chloride to precipitate polymyxin hydrochloride; (c) the ethyl alcohol extract is decomposed with hydrochloric acid, and the solution is poured into excess of acetone to precipitate the polymyxin.  The product may be further purified by treatment with activated charcoal or fractional precipitation.  According to the Provisional Specification, the process is also applicable to the recovery of other antibiotics of basic nature, such as streptomycin.  A further method of recovering polymyxin sulphate from the complex is also described therein. Specification 619,572 is referred to.ALSO:A therapeutic material is prepared by mixing a solution of a salt or complex of polymyxin and a sulphated fatty alcohol or ester with a vehicle such as arachis oil and removing the solvent to leave a suspension of the polymyxin complex in the vehicle. Specified sulphated fatty compounds are sodium and triethanolamine salts of sulphated lauryl alcohol, sodium dioctyl sulphosuccinate, lauryl sulphate, a mixture of cetyl and aleyl sulphates and the sodium salts of sulphated olefins containing 10 to 18 carbon atoms.  Suitable solvents are methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl and lauryl alcohols.  Specification 619,572 is referred to.
Patent GB-625082-A (GB)
Title: Improvements in or relating to appliances for playing roulette and other games
IPC: A63F5/04
Filed: 1947-05-20
Abstract: 625,082. Chance apparatus. RAMSAY, W. R. K. May 20, 1947, No. 13587. [Class 132 (ii)] In a chance apparatus of the type wherein a disc A mounted on a pivot B spins within a stationary casing C, the disc A can be adjusted vertically by a threaded part of the pivot B cooperating with a threaded bore in a plate E secured to the casing C, a lock-nut D being provided. In a modification the pivot B is freely mounted in the plate E and the lock-nut supports the disc A at varying heights.
Patent GB-1509064-A (GB)
Title: Hand tools
IPC: A01K97/26
Filed: 1975-04-03
Abstract: 1509064 Fishing flies C P B MACKENZIE-PHILPS 3 April 1975 13630/75 Heading A1A [Also in Division B4] A fishing fly is made from simulated insects wings cut from feathers (Division B4), the feather being tied to a fish hook.
Patent GB-1498221-A (GB)
Title: Character recognition unit
IPC: G06V10/98
Filed: 1975-04-03
Abstract: 1498221 Character recognition RECOGNITION EQUIPMENT Inc 3 April 1975 [13 Sept 1974] 13687/75 Heading G4R A character recognition system has an array of photosensors arranged in rows and columns which scan a relatively moving document at a rate which is high relative to the relative movement between the document and the array. Signals from the array 50 are fed to a preprocessor 51 which produces a multi-bit word corresponding to the number of cells (e.g. 12) in each row of the array and indicating the black/white nature of the character. The word is fed to a Read Only Memory 105 which forms a four bit feature code indicating one of sixteen predetermined features in the multi-bit word. The feature codes are fed to a character recognition processor 53 containing a decision ROM containing a large number of logical nodes arranged in a tree and responsive to successive feature codes to determine the path taken (Table III, not shown). The tree starts with a value 0000 indicating a reading of all white and then follows a branch depending on the first feature code obtained. A character is detected by looking for an all white row followed by a row containing at least one blank bit using detector 102. When Controller 111 receives the white and black row signals the Processor 53 is enabled and data from ROM 108 is clocked into Buffer 113 at the row scan rate. A space between characters is detected by ROM 104, buffer 114 and feedback 136 which looks for the presence of a black mark anywhere in the centre three columns of the array 50 and in the absence of such a mark indicates a space. When the black marks are detected the number of black rows is counted to indicate whether a full stop or period, quotation marks or characters or symbols are present. Only the largest value is considered if several are detected. At the end of a character, i.e. one or more white rows a character presence signal is produced.  The character is then examined for the feature codes. The sixteen values of the code are then used in succession to determine a path through the tree to determine the nature of the character.
Patent GB-259503-A (GB)
Title: Improvements relating to making cement from town refuse
IPC: C04B7/28
Filed: 1926-05-31
Abstract: 259,503. Heyl, G. E. May 31, 1925. No Patent granted (Sealing fee not paid). Cements, Portland, materials for making.- Town refuse is calcined in a preferably rotary kiln at a temperature not exceeding the melting- point of the resultant ash. The combustion mav be supported by the use of additional fuel or of hot combustion gases. The ash is mixed with the necessary ingredients, such as lime, to produce a cement-forming mixture, and this mixture is again calcined, preferably in a rotary kiln. Specification 260,182, [Class 111, Sewage &c.], is referred to.
Patent GB-705138-A (GB)
Title: Improvements in shrimp deveiner
IPC: A22C29/02
Filed: 1952-05-30
Abstract: 705,138. Shrimps, cleaning. HOBART MANUFACTURING CO. May 30, 1952 [May 31, 1951], No. 13789/52. Class 28(2) The sand vein along the back of a shrimp 12 is removed by a rotating saw 25 over which the shrimp is traversed by a shaped gripping groove 22 in a spring presser 15 moved in an arc by a handle 20. The back of the shrimp slides along the fixed groove 5 having a slot 26 into which the saw 25 projects. To enter a shrimp between the grooves 22 and 5 the groove 22 is moved away from 5 by a cam surface 23 on the upward swing of the handle 20. Similar separation of the groove 22 from 5 after passing the saw allows discharge of the shrimp. The material removed by the saw, or scraped out by the fixed scraper 28 Fig. 3 is received in a drawer 27. Pins 9 allow the machine to be removed from its base for washing.
Patent GB-592832-A (GB)
Title: Improvements in adjustable control levers
IPC: F16C3/28
Filed: 1945-06-01
Abstract: 592,832. Adjustable levers; securing elements to shafts. BROUSE, W. H. D. June 1, 1945, No. 13819. [Classes 80(ii) and 80(iii)] [Also in Group XXV] An adjustable lever 8, such as used on aircraft for propeller pitch governor control, is screw threaded and carries a collar 10, pivotally connected through a pivot bolt 14 and swivel ball bearing 17 to an operating control rod 18. The lever 8 has a longitudinal flat surface 9 inclined to the axis of the head 1 thereon, and the bolt 14 is formed with a corresponding surface 16 to engage in wedging contact with it when a nut 19 is tightened. The lever length is adjusted by removing the bolt 14 and turning the collar on the threaded lever to the desired position. The head 1 is split and provided with a splined split bushing 5 for adjustment and with an angle-faced orifice 7 extending therethrough for engagement with a control shaft. A circumferential groove 6 on the bushing 5 receives a bolt 4 which holds the bushing 5 from axial displacement in the head 1 and locks the bushing to the control shaft.
Patent GB-611771-A (GB)
Title: Improved brick or block for use with reinforced concrete in the construction of beams
IPC: E04C3/22
Filed: 1946-05-07
Abstract: 611,771. Floors; reinforced beams. VISETTI. A. DE M., and CUEVAS, A. R. May 7, 1946, No. 13830. [Class 20(iv)] An improved block for the construction of reinforced beams for concrete floors and like structures, has central and side recesses across 'its base to receive reinforced concrete which provides support for the structure and prevents twisting or breaking of the beams during transport. In the form shown, the block has a central recess 1 and side recesses 3, the recess 1 being covered by a temporary protective wall 2 to prevent the breakage of the block during transport. The form shown in Fig. 2 is provided with additional sound insulating cells 9 which may also be used for electric wiring. The beams are constructed by aligning the blocks on level ground in an inverted position and filling in the recesses with the concrete mixture and reinforcing bars 5, 6, 7. They are then mounted in their final position side by side and the interspaces 4 filled in with concrete and, if desired reinforcing bars 8.
Patent GB-184861-A (GB)
Title: Interlock mechanism for lifts, elevators and the like
IPC: B66B13/24
Filed: 1921-05-18
Abstract: 184,861. Marks, E. C. R., (Standard Elevator Interlock Co.). May 18, 1921. Lift cages and doors, locking and unlocking and operating.-In lift systems in which a landing door is unlocked only when the lift is stopped at that floor and the control mechanism of the lift is locked in neutral position while the door is unlocked, the door is locked by a member which is reciprocated by the opening and closing of the door and retained in the locking position by a latch member released by means on the lift. The locking-mechanism can be used with horizontally or vertically sliding doors, and with various forms of lift control mechanism, and is described as applied to an horizontally sliding door and lift controlled by a switch. The end of a bar 31, Fig. 10, attached to a horizontally sliding door engages a fork 28, Fig. 5, on one end of a lever 25 pivoted to a base plate 1 mounted in the well near the landing. The other end 23 of the lever is forked and receives a pin 22 mounted in ears 21 on a channel member 17 attached to plates 13 which are slidably mounted on the plate 1. A latch bar 4 is mounted on a pin 5 so as to have a limited vertical movement as well as a rotary movement. As the bar descends, the pin is moved away from the baseplate by contact with a lug 6 having a bevelled face and obstructs the movement of the member 17. The bar 4 may rest either in the angle between the side 16, Fig. 8, and block 20 or in the angle between the block and the side 18, these positions corresponding to a partially closed and entirety closed position of the door, respeotively. An arm 38 pivoted to the underside of the lift C has a fork 40 projecting from one side and a roller 41 mounted on the other. The arm 38 is connected by link-work to the switch arm. When the door is open, the fork 40 embraces the side 18 of the member 17 and thus actuation of the switch is prevented. When the switch is actuated to stop the lift, the roller 41 forces the latch bar 4 towards the base plate and releases the member 17.
Patent GB-756728-A (GB)
Title: Improvements in or relating to devices and plants comprising means intended to diffuse a liquid fluid thoroughly throughout a mass of moving gaseous fluid, and applications thereof
IPC: B01F5/04
Filed: 1952-06-03
Abstract: 756,728. Contacting liquids with gases. LA FOURNIERE, M. M. P. R. DE. June 3, 1952 [June 5, 1951 ; Dec. 7, 1951 ; March 18, 1952], No. 13959/52. Class 55(2). [Also in Group XXIX] Liquids are contacted with gases flowing through a tube 51 having the shape of a Venturi by being sprayed into the gas stream through a slot 56 in a tube 55 arranged in a socket 54 which is welded to the walls of the Venturi tube so that the slot 56 registers with a slot in the walls of the Venturi tube. The tube 55 is threaded at one end into a liquid distributer 57, Fig. 2, and is threaded and enlarged at the other end to carry a lock-nut 60 which tightens against the socket 54. In the tube 55 there is a threaded rod 62 with longitudinal grooves 65 and 70, the groove 65 being in communication with the distributer 57 and the groove 70 registering with the slot 56. The rod 62 is for most of its length of slightly smaller diameter than the tube 55 and liquid from the distributer 57 passes along the threads of the rod to form a series of jets so that a curtain of liquid is sprayed into the gas through the slot 56. A tube 67 having a slot 69 registering with the slot 70 may supply a gas for atomizing the liquid being sprayed through the slot 56. In a modification the liquid is fed between the spirals of a spiral spring which is mounted adjacent a longitudinal slot and so that the opening between the spirals and hence the size of the jets can be regulated. The gas may pass through a series of the spraying devices and the cross-section of the tube 51 may be circular or rectangular. Chemical reagents may be mixed with the liquids sprayed into the gases and more than one liquid may be sprayed.
Patent GB-131730-A (GB)
Title: Improvements in Compressed Air Motors.
Inventor: BLACK GEORGE JAMES FORBES
IPC: F01B17/00
Filed: 1918-08-28
Abstract: 131,730. Black, G. J. F. Aug. 28, 1918. Compressed-air engines.-A compressed-air engine for use underground is of the type having a cylinder 1 with inlet ports 7, 8 at the ends, a central exhaust port 2 uncovered by the piston 4 at the end of each stroke, a central supply port 11, and a piston valve 9 working in a circular bore 10 parallel with the cylinder and controlling the ports 7, 8. The working parts are all enclosed in a casing 25 containing the lubricating oil. The casing is preferably divided at 45, 46 through the bearings of the crank-shaft 29 and the rock-shaft 44, and the part 25 is integral with the cylinder 1, cross-head guide 24, &c. The ports 7, 8 are provided with relief valves 18 for preventing excessive pressure in the cylinder at the end of each stroke.
Patent GB-1128198-A (GB)
Title: Improvements in or relating to hybrid electric circuit arrangements
IPC: H04Q11/04
Filed: 1967-03-28
Abstract: 1,128,198. Automatic exchange systems. SIEMENS A.G. 28 March, 1967 [29 March, 1966], No. 14005/67. Heading H4K. A four-wire/two-wire time division multiplex conversion is made by pulsing switch Sx1 to effect resonant transfer between the storage capacitor of the two-wire line (not shown) and the storage capacitor Cx1 of the GO channel Vx1 of the four-wire line Vx, the switch Sx2 being subsequently pulsed to effect resonant transfer between the capacitor Cx1 of the GO channel Vx1 and the capacitor Cx2 of the RETURN channel Vx2. The switch Sx2 may be controlled by the same pulse that operates Sx1 but after the delay introduced at #t. With the connections of switches, Sx1, Sx2, as shown, the switches have to be held operated for different periods of time to achieve resonant transfer as the inductances for each transfer differ. If, however, Sx1 is connected to switch a tapped portion and not the whole of inductor Lx to the two-wire line, while Sx2 switches the whole of Lx (Fig. 2, not shown), the operating time of the switches can be made the same. The storage capacitors may be associated with auxiliary series-connected capacitors charged over transistors as described in Specification 1,034,560 (Fig. 3, not shown). The GO and RETURN channels of a number of four-wire lines may be multiplexed to the same pair of switches Sx1, Sx2 (Fig. 4, not shown). The switches Sx1, Sx2 may be provided in the manner shown in Fig. 6 where the highway has legs M1, M2 biased above and below earth so as to normally cut off diodes 1D1, 1D2 in switch Sx1. A pulse to winding Pd of transformer Ud forward biases the diodes 1D1, 1D2 to gate the highway to the GO channel Vx1 for the duration of the pulse. When the pulse ends, reverse potentials appear for a period in the transformer secondary Sd and these forward bias the normally cut-off diodes 2D1, 2D2 comprising the switch Sx2. The RETURN channel Vx2 is consequently connected to the GO channel Vx1 as is required.
Patent GB-108935-A (GB)
Title: Improvements in or relating to the Attachment of Side-cars or the like to Motor Cycles.
Inventor: RIGBY GEORGE EDWIN
IPC: B62K27/12
Filed: 1916-10-03
Abstract: 108,935. Rigby, G. E. Oct. 3, 1916. Side-car attachments. -In a coupling for connecting side-cars or like wheeled attachments to motor-cycles, the lugs are keyed together by means of crossed ribs and corresponding recesses so as to provide for the taking up of vertical, as well as backward and forward, thrusts. An upright lug A with ribs a is brazed or otherwise rigidly secured to the cycle frame and is engaged by the recessed lug C on the sidecar arm B, the two lugs being secured together by a bolt passing through the holes D.
Patent GB-736051-A (GB)
Title: Improvements in or relating to lamp shades
IPC: F21V1/00
Filed: 1953-05-19
Abstract: 736,051. Lamp shades. PAGE, A. May 19, 1954 [Way 19, 1953], No. 14027/53. Class 75 (2). A cylindrical or tubular lamp shade comprises one or more flexible panels 1 deformable into the required shape and having holes 2, 3 at the top thereof, a supporting frame 5 constituted by a single member for mounting on a lamp-holder and formed with hooks 8, 10 engaging in the holes 2, 3, the panel adjacent edges below the frame 5 being interconnected by individual fasteners, e.g. wire staples 4. As shown, the shade is made from two panels of identical shape with adjacent edge portions face-to-face. The frame 5 is made up from a number of interconnecting parts forming a central opening 6 with diametrically opposite radial arms 7 formed with two oppositely sideways directed hooks 8 for engagement with holes 2 disposed in the upper corners of the panels and with two oppositely directed arms 9 having hooks 10 to engage with the holes 3 at the centre of the upper edge portion of the panels. The arms 9 also have portions 11 to prevent the panels sliding along the arms. The hooks 10 may be dispensed with. The fasteners 4 may be detachable fasteners.
Patent GB-954607-A (GB)
Title: Direction signal canceling mechanism
IPC: B60Q1/42
Filed: 1962-04-11
Abstract: 954,607. Road traffic signalling. BOYNE PRODUCTS Inc. April 11, 1962 [April 20, 1961],. No. 14031/62. Heading G4R. A cancelling mechanism for a direction indicator switch comprises means for moving the cams 31b, 31a on the steering wheel relative to fingers 8a, 8 connected to the actuating member 7, 12 of the switch so that the indication will be cancelled even if the steering wheel shaft 19 has only been turned through a small angle. The assembly 26, Fig. 4 is carried by the shaft 19 and comprises ratchet wheels 36,38 provided with cams 31b, 31a and oppositely slanted ratchet teeth 37, 39. Wheels 36,38 are mounted so that the former can be rotated only counterclockwise and the latter clockwise with respect to the shaft 19 by oppositely wound springs 33, 35 respectively, one end of each of which engages a groove in its respective wheel. Rings 40,41 maintain, the assembly of wheels 36, 38 and sleeve 28 keyed to shaft 19. A plate 27 is provided with pawls 51, 53 at each end to co-operate with the ratchets 37, 39 and is secured to the switch actuator 7,12 so as to move with it. Operation. Assume a left turn is to be made. Switch arm 12 is rotated counterclockwise and switch actuator 7 together with member 27 is moved (Figs. 2,4) the latter so that pawl 54 could engage ratchet teeth 39 but is prevented from this by disc 41. When shaft 19 is returned to "straight ahead travel" after the turn, pawl 54 will be opposite a notch 44 in disc 41 to allow engagement of pawl 54 and teeth 39. When shaft 19 is rotated clockwise the inclination of teeth 39 will permit wheel 38 to rotate with the shaft 19 relative to pawl 54 but when the shaft 19 is rotated counterclockwise, wheel 38 will be held by pawl 54 so that there is relative rotation of shaft 19 and wheel 38. As the steering shaft is oscillated wheel 38 and therefore cam 31b will be incrementally moved clockwise with respect to shaft 19 until one of the cams 31b is advanced sufficiently to engage finger 8a and restore the switch member 7 to neutral. The ratchet and pawl mechanism will only be operative over a small turning arc depending on the length of notch 44. The operation for a right turn is similar but pawls 51 will engage ratchet teeth 37. Specification 951,122 is referred to.
Patent GB-112404-A (GB)
Title: Improvements in Rotary Disc Cutting Machines.
Inventor: EDWARDS FRANCIS WILLIAM ERNEST
IPC: B26D7/26
Filed: 1917-09-28
Abstract: 112,404. Edwards, F. W. E., and Moir, H. J., (trading as Victoria Engineering Co.). Sept. 28, 1917. Cutting tubes &c. of cylindrical form transversely to their length. --- In rotarydisk cutting-machines of the kind in which paper and like material such as are adapted for employment in the manufacture of hollow vessels, the mandrel is constructed with a number of removable collars of soft metal corresponding in posi- :ion with the rotary cutters so as to avoid damage to the cutters and to allow ready renewal of the collars when worn. The mandrel a has mounted thereon collars c of soft metal and sleeves b of hard metal all secured by an end cap w. The rotary cutters e project through a table r and are mounted in a frame j pressed upwards by springs m and capable of being drawn down by a foot pedal attached to a stirrup q. The cutters e are adjustably mounts in the frame by supporting them in brackets f having stems g to receive nuts h and with flat-sided enlargements g<1> which slidably fit slots k in the frame and are engaged by nuts u.
Patent GB-237403-A (GB)
Title: Improvements relating to albums or files
IPC: B42F5/00
Filed: 1924-06-10
Abstract: 237,403. East, T. G. June 10, 1924. Contents, facilitating access to.-An album for gramophone records &c. comprises a book-shaped box or receptacle within which a series of record envelopes is secured in such a manner as to be readily accessible. One b<2> of the side walls of the box or receptacle, and also the back c, to which is hinged the cover d, are hinged to the base a, so that they can be lowered, in order to give access to the envelopes e. A flange c<1> on the back serves to retain the side wall b<2> upright when the box is closed. The envelopes may be connected together by means of a zig-zag strip f of fabric &c., and the series of envelopes may be secured at the side adjacent to the back of the box to a sheet of cardboard &c., which is secured to the base a at its opposite edge. A suitable fastening-device, such as a press-button h, may be provided.