baber/WOPTO huggingface dataset:
Patent GB-478108-A (GB)
Title: Improvements in or relating to x-ray contrast media
IPC: A61K49/04
Filed: 1937-05-14
Abstract: An X-ray contrast medium comprises barium sulphate and a dextrine, advantageously an erythro-dextrine.  The medium may have a dextrine content of 5-10 per cent.  Taste and/or odour correctives may be present, powdered sugar, cacao, candied lemon peel and vanillin being specified as examples of the former, and vanillin and lemon oil as examples of the latter.  In an example, barium sulphate, dextrine and a small quantity of vanillin are mixed in a ball mill.  Reference is made to known contrast media consisting of barium sulphate with additions of sugar, dextroses, laevuloses, polyhydric alcohols such as mannite or erythrite, agar-agrar, tragacanth, gelatine, carragheen and other mucilages, and paraffin.
Patent GB-178350-A (GB)
Title: Improvements relating to heaters and guards for looms for weaving
IPC: D03D49/68
Filed: 1921-05-17
Abstract: 178,350. Inman, P. May 17, 1921. Guards. - A loom heater and its guard are combined in one unit and are adapted to be secured to any existing heater-bracket. In the form shown in Fig. 4, the heater B is cast integrally with diverging and outwardly curved guard lips A which may be provided with inspection openings a and with a lug a<1> for attachment of the device to the heaterbracket. In other forms, the device has only one guard lip at the bottom, a guard lip at the top and bottom, or four guard lips. When a double. heater-bracket is employed, the device has a lug a at each side. Instead of a. lug, a projection may be formed with the device. When one side of the heater becomes worn, the device may be reversed.
Patent GB-1063403-A (GB)
Title: Improvements in and relating to the production of acrylonitrile
Inventor: HADLEY DAVID JAMES
Filed: 1965-04-01
Abstract: Acrylonitrile is recovered from gaseous mixtures containing it together with free ammonia, such mixtures being produced by the vapour phase catalytic oxidation of propylene in the presence of ammonia and molecular oxygen, by volatilizing into the gaseous mixture, while still at a temperature above its dew point, formic acid in amount at least sufficient for the neutralization of the free ammonia, washing the gaseous mixture with water to absorb acrylonitrile and other soluble products and distilling the resulting solution to recover the acrylonitrile. The formic acid may be volatilized in the gaseous mixture as it leaves the reactor by injecting a spray of aqueous acid into the hot gas stream.  The washing with water is generally effected at 0-26 DEG  C. and it may be effected in two stages, i.e. in a preliminary stage in which ammonium formate is dissolved out and a second stage for removing acrylonitrile and other components.
Patent GB-344284-A (GB)
Title: Improvements in pipe and like joints
IPC: F16L13/06
Filed: 1930-05-05
Abstract: 344,284. Pipe joints. BABCOCK & WILCOX, Ltd. and SMITH, F. H., Babcock House, Farringdon Street, London. May 5, 1930, No. 13812. [Class 99 (i).] In pipe joints of the kind in which flanges 5 are screwed on to the ends of the pipes and are additionally secured by welding, the pipe ends and flanges are so shaped at 21, 51 as to provide space for the weld, a smooth bore and a flange joint face untouched by welding being obtained. The fins 6, 7 may be welded or caulked together after the bolts 9 are tightened.
Patent GB-854657-A (GB)
Title: Inspection process and inspection device for detecting differences in two objects
Inventor: ROCKAFELLOW STUART CRAGO
IPC: G01B11/24
Filed: 1959-04-23
Abstract: 854,657. Photo-electric comparison apparatus. ROBOTRON CORPORATION. April 23, 1959, No. 13869/59. Class 40(3). An object A, Fig. 1, is examined and compared with a standard object S (or a photographic reproduction thereof) by means of photo-electric cells 17 and 18 which are exposed through a mechanism 10-12 arranged to effect simultaneous and identical scanning of the two objects. The outputs of the two photo-electric cells are applied to a comparator circuit 19 (illustrated in detail in Fig. 7, not shown), any difference between the object and standard causing operation of a load circuit 20 which may comprise a signalling device or a mechanism to cause removal of an improper object from, say, a conveyer belt. The two objects are illuminated by sources 62 and 63, and optical systems 14 and 15 form images on ground glass plates 8-9 immediately adjacent the scanning mechanism. In the arrangement shown in Fig. 1, the scanning mechanism comprises an assembly of overlapping, radially apertured discs arranged as illustrated more fully in Fig. 2. The discs are rotated in the same direction, disc 11 being rotated 10-50 times more rapidly than discs 10 and 12, and over the areas 39 and 40, where the images of the two objects are located, expose through passages 41 and 43 (where the radial apertures intersect) which effect scanning over the image areas in a series of overlapping lines. In a simplified arrangement one of the outer discs is omitted and the scanning is effected by through passages 41, 42 or 43, 44. Fig. 6 shows a modification employing two rotating discs 152, 153 and a slowly reciprocating plate 150 driven via rod 160 by wheel 161. Fig. 10 shows a further modification employing a single rotating disc 179 with two plates 170, 171 which are reciprocated in opposite directions by linkage mechanism 172-177 driven by wheel 178. The scanning mechanism together with the standard or a reproduction may be mounted on a support so that it may move along in step with a moving conveyer belt in order to inspect objects carried by the belt. In one arrangement, Fig. 8 (not shown), for use where the objects are spaced at equal distances on the belt, the support engages one of series of notches in the belt (spaced apart at the same distance as the objects) and travels with belt until it meets a stop when it returns under spring action until it engages the next preceding notch and repeats the operation. In another arrangement, Figs. 9 and 11 (not shown), for use where the objects are spaced apart on the belt at unequal distances, the support carries a photo-electric cell (additional to those used for examination) which is exposed to a light beam from a source on the opposite side of the conveyer belt and causes the support to be clutched to the belt so as to travel with it whenever an object interrupts the beam. A further photoelectric cell is employed to disengage the clutch and allow the return of the support under spring action to await the next object.
Patent GB-774978-A (GB)
Title: Improvements in or relating to structures for mounting electrical components
IPC: H05K7/08
Filed: 1954-05-12
Abstract: 774,978. Supports for circuit components. GENERAL ELECTRIC CO., Ltd., CORNELL, W., and SHEPHERD, S. A. May 4, 1955 [May 12, 1954], No. 13899/54. Class 38 (1). [Also in Group XL (a)] A metal or insulating frame comprising side pieces 2 and cross-members 3, 4 carries insulating members 1 extending from side to side and provided with rows of holes 10 for the mounting on or between the members of wire-ended components 9. Terminals formed by looped wires, which may be the wire-ends of the components, are inserted in the holes 10 as described in Specification 774,979.
Patent GB-316700-A (GB)
Title: Improvements in the manufacture of vulcanised fibre
IPC: D21J1/08
Filed: 1928-05-11
Abstract: 316,700. Johnson, J. Y.. (I. G. Farbenindustrie Akt.-Ges.). May 11, 1928. Waterproofing ; proofing processes and compositions. - Vulcanized fibre is impregnated with aqueous solutions of substances which are capable of forming resinous water repellant products, or with solutions of the components of such substances, and the substances are then converted into the solid water repellant state within the fibre. The fibre is impregnated, for example, with solutions or mixtures, or soluble primary condensation products, of phenols and aldehydes, or nf urea and aldehydes, ketones and aldehydes, phenols and sulphur or sulphur compounds, phthalic anhydride and polyhydric alcohols, or other substances, and insoluble condensation products formed within the fibre. Catalytic agents may be added. The fibre may be first impregnated with a solution of one component and then with a solution of the other component. In one example, 94 parts of phenol are dissolved in 100 parts of an aqueous 30 per cent solution of formaldehyde with the addition of 1 part of butylamine. Articles of vulcanized fibre, immersed in the solution swell and absorb up to 100 per cent of their own weight of solution. They are taken out and kept for one or more days at 95‹ C., when the condensation product is formed. The heating may be effected under pressure, and the mass may be moulded at the same time. The phenol may be replaced by its homologues or by naphthol, and other aldehydes such as furfural may be substituted for formaldehyde. In a second example 30 parts of urea are dissolved in 100 parts of water, and the fibre placed in this solution until it ceases to absorb liquid. The fibre is then immersed' in a 30 per cent solution of formaldehyde for one or two days. Catalysts may be added. The fibre is then dried and heated to 90‹-95‹ C. for a few hours, or up to several days. Urea may be replaced by its homologues or by thiourea. In a third example, 50 parts of glycerol and 100 parts of phthalic anhydride are melted and then dissolved in 100 parts of warm water. The fibre is impregnated with the solution, dried, and heated at 100‹ C. for several hours, for a shorter time at about 140‹ C., and finally at 160‹ C. for about half an hour. The glycerol may be replaced by other polyhydric alcohols such as glycol or sorbitol, and the phthalic acid by other dibasic acids such as succinic acid.
Patent GB-109503-A (GB)
Title: Improved Propelling Means for Aircraft.
Inventor: MACLAREN NORMAN HENRY WILLIAM
IPC: B64D35/04
Filed: 1916-09-30
Abstract: 109,503. Maclaren, N. H. W. Sept. 30, 1916. Propelling.-In an arrangement for driving two aircraft propellers in opposite directions, one propeller a is mounted on an engine shaft c, which carries a bevelwheel f gearing by means of other wheels g with a wheel h secured to a sleeve d carrying the other propeller b. Reference has been directed by the Comptroller to Specifications 12514/00 a n d 12099/11.
Patent GB-671617-A (GB)
Title: Improvements in or relating to esters of 2, 4-dichlorophenoxy acetic acid
Inventor: BRITTON EDGAR C
Filed: 1950-06-05
Abstract: Esters of 2 : 4-dichlorphenoxyacetic acid in which the ester group is a chlorphenyl-monoether of propylene glycol are obtained by reacting 1 mol. of the acid and at least 1 mol. of the glycol ether in presence of a dehydration catalyst, such as sulphuric acid, if desired in a water-immiscible solvent heated to boiling. The glycol ethers employed may be obtained by the reaction of propylene oxide and a chlorophenol in presence of sodium hydroxide, when a 1-chlorophenoxy-2-propanol is mainly obtained. In examples, 2 : 4 - dichlorphenoxyacetic acid is condensed with 1-(2-chlorophenoxy) - 2 - propanol, 1 - (2 : 4 - dichlorophenoxy) - 2 - propanol, 1 - (2 : 4 : 6 - trichlorophenoxy) - 2 - propanol, and 1 - (2 : 4 : 5 - trichlorophenoxy) - 2 - propanol to give the corresponding esters.
Patent GB-199231-A (GB)
Title: Improvements in and connected with means for supplying internal combustion engines with liquid fuel to facilitate engine starting
IPC: F02N99/00
Filed: 1922-05-19
Abstract: 199,231. Hounsfield, L. H. May 19, 1922. Plug cocks.-In a priming and reserve fuel supply device lor use with internal combustion engines, a plug cock P is provided, by means of which (a; both passages A, X may be connected to the chamber V, as in Fig. 4; (b) the chamber V may be connected to the passage E; (c) the passage A may be connected to the passage Z; (d) both the passages A and X may be connected to the passage Z. The passage X is in a different plane to the other passages and is put into communication with the main port Q in the plug P when the latter is in position (a) or (d) above by means of longitudinal grooves Y formed in the plug cock.
Patent GB-375034-A (GB)
Title: Apparatus for producing electric potential impulses, more particularly for calibrating purposes
IPC: G01R35/00
Filed: 1931-05-13
Abstract: 375,034. Dynamos. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. May 13, 1931, No. 14177. Convention date, Aug. 6, 1930. [Class 35.] Inductor machines ; oscillating machines.- An apparatus for producing electric potential impulses for calibration purposes comprises a magnetic circuit including a permanent magnet 1 and a generating coil 2, parts of the circuit, e.g. an armature 5, being mounted to oscillate and coupled to a spring 7 or other restoring means which is loaded during one throw of the movable part and returns it at a definite speed from a definite position to the initial position, a switch being coupled with the movable part to short-circuit or interrupt the circuit of the generating coil during the loading movement of the movable part. The armature 5 which is pivoted at 6 and is held in the position shown against a stop 8, is deflected by a push-rod 9 carrying a pivoted latch 11 a on an abutment 11. When the armature has been deflected by a definite amount, it is released by the latch 11 a and springs back to the position shown, generating an impulse in the coil 2. The return movement of the rod 9 is effected by a spring 10, the latch 11 a sliding past the bevelled end of the armature. During the downward movement of the rod, the coil 2 is short-circuited through the armature 5, latch 11a and frame 13, 14 so that no impulse is transmitted to the circuit 15. The coil 2 may be disposed on the armature 5, or the armature may be stationary, a magnetic body being moved at a definite speed in the air gap between the armature and the magnet. To adjust the value of the potential impulse, the magnet 1 may be displaceable or the tension of the spring 7 or the stroke of the armature may be adjustable, graduated scales being provided in conjunction with the means of adjustment. The Specification as open to inspection under Sect. 91 (3) (a) describes also a construction employing a permanent magnet 20, Fig. 2 (Cancelled), which is dropped from a definite height inside a tube 21 surrounded by a coil 22. The magnet is held at the bottom of the tube by a spring slip 21a. In another modification, a " magnet star " or " armature star " rotates in front of the poles of the magnet system 1 and is driven by clockwork. This subjectmatter does not appear in the Specification as accepted.
Patent GB-742328-A (GB)
Title: Improvements relating to the feeding and batching of biscuits
Inventor: TUNLEY ALLAN ASHMEAD
IPC: A21C5/00
Filed: 1953-05-20
Abstract: 742,328. Feeding biscuits to endless conveyers. BAKER PERKINS, Ltd. May 20, 1954 [May 20, 1953], No. 14215/53. Class 78 (1). Biscuits stacked in a hopper in a plurality of side-by-side piles are withdrawn one from each pile by each actuation of a reciprocating slide 13 so as to deliver them in transverse rows to a conveyer band 2, and means are provided for intermittently nullifying the action of the slide to provide spaces between adjacent batches of biscuits on the band. As shown, the hopper consists of a plurality of vertical compartments 3, each compartment being formed by front and rear separation members 4 which, to enable the sizes of the compartments to be varied to suit different sizes of biscuits, are adjustable, the front members 4 being slidable along a transverse bar 5 and locked in place by set-screws 9, while the rear members have rods 8 slidable in the front members and locked in place by set-screws 10. The slide 13 is reciprocated through levers 14, 16 pivoted at 15, link 17 and bell-crank 18, by cam 20 engaging follower roller 21 on crank 18, the pushing part of the cycle being effected under control of the cam by spring 22. The action of the cam is periodically nullified by an interrupter 39 rotated in timed relation with cam 20 and band 2, and having an arcuate projection 40 adapted after a predetermined number of cycles to engage an arm 41 secured on the shaft 19 on which crank 18 is secured, to hold roller 21 away from cam 20 during the following cycle. To batch biscuits of different lengths and/or to feed them with different longitudinal spacings cam 20 is driven from shaft 27 through a change-gear box 31. Also, the length of projection 40 is made adjustable by constructing interrupter 39 of two discs having overlapping projections 47, 48 constituting projection 40, adjustable angularly with respect to each other and to a back-plate (not shown) mounted on its shaft 44. Adjustment of the discs relative to each other is effected by rotation of a knob 62 on the projecting end of a stub shaft 60 journalled in the front disc and carrying on its inner end a pinion 59 engaging a rack 58 formed in a slot 57 in the rear disc, while adjustment relative to the backplate is effected by rotation of a knob 56 on a shaft 54 journalled in the back-plate and carrying a pinion F3 engaging a rack 52 formed in a slot 51 in the front disc. The apparatus is adjusted by selecting the gear ratio of box 31 to suit the required spacing of the biscuits, turning drive-shaft 27 by a hand wheel 77 until a pointer 78 on the shaft of cam 20 is opposite a fixed arrow A, turning knob 56 to bring arrow B on projection 47 opposite a pointer 79 on arm 41, turning knob 62 until a scale 80 on projection 48 reads correctly according to timing required as predetermined for the desired batch interval, and tightening clamping nuts 65 threaded on shafts 63 attached to the back-plate and passing through slots 64 in the discs for locking the latter in adjusted position.
Patent GB-292095-A (GB)
Title: Improvements in or relating to dust suction apparatus
IPC: H02K11/23
Filed: 1928-05-15
Abstract: 292,095. Inventia Patent-Verwertungs-Ges. June 13, 1927, [Convention date ]. Controllers, actuating.- An electric motor driving a vacuum cleaner is provided, on an extension 6 of the motor shaft 4, with a centrifugally actuated switch 17 for the purpose of short-circuiting a starting-resistance when the motor has speeded up, and for re-inserting the resistance when themotor stops.
Patent GB-763113-A (GB)
Title: Preparation of alpha-alkoxynitriles
Filed: 1954-05-17
Abstract: a -Alkoxynitriles of general formula R1CH (OR)CN, wherein R is an alkyl group and R1 is an alkyl, alkenyl, alkinyl or aromatic hydrocarbon group, are prepared by reacting a dialkyl acetal R1CH(OR)2 with anhydrous hydrogen cyanide at a temperature of from 50 DEG  to 200 DEG  C. in the presence of an acidic catalyst.  Specified catalysts are those of the Friedel-Crafts type, e.g. AlCl3, BCl3, SnCl4 and BF3, and mineral acids, e.g. HCl.  Specified radicals represented by R1 include methyl, ethyl, propyl, ethenyl, propenyl, ethinyl, phenyl, alkyl phenyl, naphthyl and alkylnaphthyl.  In examples: (1) a mixture of anhydrous hydrogen cyanide, dibutyl acetal and BF3 in ether are heated slowly in a rocker bomb, the product neutralized with soda ash, and 1-butoxy-1-cyanoethane isolated by vacuum distillation; (2) diethyl acetal treated as in (1) yields 1-ethoxy - 1 - cyanoethane and (3) dimethyl butyral similarly gives 1-methoxy-1-cyanobutane.
Patent GB-1207595-A (GB)
Title: Aerials
Inventor: CHARDIN ERIC GEOFFREY
IPC: H01Q7/08
Filed: 1968-03-25
Abstract: 1,207,595. Aerials. PYE Ltd. 14 March, 1969 [25 March, 1968], No. 14347/68. Heading H4A. A magnetic dipole aerial comprises a ferrite rod 1, around which is a conductive sleeve 2 having a gap 3 throughout its length. Capacitors C 1 , C 2  + C 3 , and C 4  are uniformly spaced along the gap 3, and are connected to the edges thereof. Means are provided for adjusting the inductance of the sleeve 2, so that the aerial may be resonant at a desired frequency and, as described, this consists of a longitudinal slot 6 at the back of the sleeve 2, which may be wholly or partially short-circuited by an axially slidable further sleeve 5. The sleeves 2, 5 may be made of beryllium copper and be silver-plated. A tab 7 on the sleeve 5 facilitates movement for adjustment. The sleeve 5 may be finally secured by means of an adhesive. The aerial is fed by connections across the capacitor C 3 , and matching is obtained by suitably proportioning the values of the capacitors C 2 , C 3 .
Patent GB-438059-A (GB)
Title: Improvements relating to magnetic separators
IPC: B03C1/14
Filed: 1934-05-12
Abstract: 438,059. Magnetic separators. ELECTROMAGNETS, Ltd., and BOX, W. E., 2, Church Street, Colmore Row, Birmingham. May 12, 1934, No. 14383. [Class 72] In a magnetic separator for removing ferrous material from different classes of mixtures or different grades of the same mixture, the mixtures are fed from hoppers A B on to shaker feed trays 5, 6 from which the mixtures are fed by adjustable shoots 5<a>, 6<b> on to the opposite sides of a drum 7 rotating round an electromagnet, The hoppers A, B are closed by adjustable feed gates 4<a>, 4<a> and the shoot 6<c> is lower than the shoot 5a. The electromagnet comprises magnets 8, 9, 10 which create fields of the greatest intensity adjacent the parts of the drum on to which the mixtures are fed, and the magnets 8, 9 are provided with polepieces 11, 12 which create a weaker field at the top of the drum to cause the adherence thereto of ferrous articles during the rotation of the drum through the upper portion of its path. The magnets 8, 10 are also provided with poles 13, 14 of like polarity to cause an expulsion of the ferrous materials from the surface of the drum into a receptacle 18. The non- ferrous part of the mixtures are directed by shoots 15, 16 into receptacles 17, 19. The shaft 20 is in two portions the magnet 8 and polepieces 11, 13 being secured to one portion of the shaft and the magnets 9, 10 and polepieces 12, 14 to the other part, so that the parts of the shaft may be turned relatively to each other to give a varying disposition of the magnetic fields. Specification 423,684 is referred to.
Patent GB-594617-A (GB)
Title: Improvements in the manufacture of synthetic products suitable as substitutes for leather
IPC: C08L89/06
Filed: 1945-06-07
Abstract: Leather scrap or skin waste is pounded to a pulp in water, tanned, detanned or neutralized and an aqueous emulsion of a polyvinyl resin and anthracene oil intimately mixed therewith. The composition is drained, pressed into sheets and dried.  Resins specified are polyvinyl chloride, polyvinyl acetate, polyacrylic resins and polystyrene.  The oil may be added as such to the resin emulsion or added as an aqueous emulsion.  Emulsifiers such as gelatine, casein, sulphonated fish oil, sodium sulphoricinate, plasticizers such as dibutyl and diethyl phthalates, tri-cresyl and tri-phenyl phosphates may be present.  Tannin may be added to the composition of emulsion and pulped fibre to hasten coagulation.
Patent GB-1379176-A (GB)
Title: Bacterial cellwall lytic enzyme and process for producing the  same
IPC: C12N9/14
Filed: 1972-03-28
Abstract: 1379176 Bacteriolytic enzyme ex Pseudomonas KIKKOMAN SHOYU CO Ltd 28 March 1972 14440/72 Heading C3H A bacterial cell wall lytic enzyme is obtained by cultivating a microorganism of the genus Pseudomonas (which is capable of producing a cell wall lytic enzyme from a non-carbohydrate carbon source) in a medium containing at least one such source which is a hydrocarbon, an alcohol or. an organic acid, under aerobic conditions, permitting the enzyme to form and accumulate in the medium and then recovering the enzyme from the medium. The enzyme produced from the strain exemplified, Pseudomonas aeruginosa L-1028, FERM-P788, ATCC 21776 has (a) an optimum pH of 7À0-8À0, an optimum temperature of 37-40‹ C. and heat stability being lost at 60‹ C. for 30 minutes for gram positive bacteria and (b) an optimum pH of 7À0-8À0, an optimum temperature of 40-45‹ C. and a heat stability being kept at 80% at 60‹ C. for 30 minutes for gram negative bacteria; and a residual activity of 45À8% in a 10% NaCl solution. The non- carbohydrate source may be petroleum, kerosene, gas oil, liquid paraffin, preferably C 12 -C 18  n-paraffins, ethyl or methyl alcohol, or acetic or succinic acid. Other ingredients are conventional.