baber/WOPTO huggingface dataset:
Patent GB-537036-A (GB)
Title: Sterol compounds and process for their preparation
IPC: C07J9/00
Filed: 1939-08-31
Abstract: 537,036. Sterol derivatives. DU PONT DE NEMOURS & CO., E. I. Aug. 31, 1939, No. 24998. Convention date, Sept. 2, 1938. [Class 2 (iii)] 7-Dehydro-compounds of sterols are prepared by reacting a sterol compound having an esterified hydroxyl group in the 7-position with a nitrogen containing organic base, preferably an amine. The preferred starting material for the invention are 7-hydroxycholesterol- ; -sitosterol- ; and -stigmasteroldibenzoates, and the preferred bases are dimethylaniline, diethylaniline, and diethylaminocyclohexylamine. In examples (1) 7- Hydroxy-cholesterol dibenzoate is refluxed with dimethylaniline for two hours, treated with acid and saponified to give 7-dehydrocholesterol; (2) Beta-7-hydroxy-cholesteryl dibenzoate is treated'as described in example (1) to give 7-dehydro-cholesterol ; (3) 7-Hydroxystigmasteryl-dibenzoate is refluxed with diethylamino-cyclohexylamine and worked up as before to give 7-dehydro-stigmasterol; (4) 7-Hydroxy-sitosterol-dibenzoate is treated with dimethyl-stearylamine to give 7-dehydrositosterol; (5) 7-Hydroxy-cholesterol dibenzoate is treated with pyridine to give 7- dehydrocholesterol benzoate which may be saponified ; (6) 7-Hydroxy-sitosterol-dibenzoate is treated with monoethylaniline to give 7-dehydrositosterol benzoate ; (7) 7-Hydroxycholesterol-dibenzoate is treated with methylundecylamine to give 7-dehydrocholesterol; (8) 7- Hydroxy-cholesterol dibenzoate is treated with aniline to give after saponification 7-dehydrocholesterol ; (9) 7-Hydroxy-cholesterol diacetateis treated with dimethylaniline to give 7- dehydrocholesterol acetate which may be saponified to the corresponding sterol. Additional acids mentioned, the sterol esters of which may be used include nitrobenzoic, meta-dinitrobenzoic, chlorobenzoic, toluic, phenyl acetic, cinnamic, formic, propionic, butyric, and valeric acids. There are also included as esterifying agents the corresponding acid halides and acid anhydrides; Amines mentioned include aniline, pyridine, piperoizine, piperidine, dimethylaniline, diethylaniline, diethyl-α-naphthylamine, diethylamino-cyclohexylamine, dimethyl-stearylamine, methylundecylamine, monoethyl-aniline, quinoline and triethylamine.
Patent GB-488270-A (GB)
Title: Process for the production of salve bases or salves
IPC: A61Q19/00
Filed: 1936-09-14
Abstract: Salves and salve bases for cosmetic and medicinal purposes are prepared from hydrogenated fats or oils of animal or vegetable origin, which absorb not more than 2 per cent of water, and to which medicinal substances, preservatives, emulsifying agents, or fatty acids may be added.  The added substances may be added before hydrogenation.  Examples mention, as additions to hydrogenated oils, zinc oxide, coal tar, ol. hyoscyami, salicylic acid, cholesterin, palmitic acid, neutralized turkey red oil.
Patent GB-673625-A (GB)
Title: Improvements in system of radio aids for aerial navigation
IPC: G01S1/02
Filed: 1950-10-13
Abstract: 673,625. Radio navigation. LLOYD, R. G. Oct. 13, 1950, No. 25088/50. Class 40 (vii). In an arrangement of radio navigational aids in the vicinity of an airfield four inbound courses, each extending in a different direction at substantially right angles to the adjacent inbound courses, and four outbound courses, each laterally spaced from and parallel to an adjacent inbound course, are provided by two double directional beam radio range stations located on opposite sides of the airfield, which stations have some of the beams of one station at substantially right angles to some of the beams of the other station. In a complete airfield installation two beacons 4 and 41, which may be of the A-N type, each define two approach and two outbound paths 3 so that spaced parallel outbound and approach paths are provided from four directions adjacent ones of which are separated angularly by 90 degrees. H.F. " Cone " markers 7 are provided at each of stations 4 and 4<SP>1</SP> and at the other points of beam intersection 5 and 5<SP>1</SP>. Middle and outer fan markers 6 and 61 are also provided on each of the incoming courses and all of the markers 6, 6<SP>1</SP> and 7 are preferably of a type which under control of the airfield control tower radiate one or both of two signals causing co-operating aircraft equipment to give either a warning, caution, or go-ahead indication. When an inbound aircraft receives a go-ahead indication at a final marker 7 the aircraft should be tuned anticlockwise through 45 degrees and landed in accordance with the leftright indications given by the appropriate one of four localizer stations 8. As a further assistance to navigation non-directional beacons of differing frequencies may be placed at 5 and 5<SP>1</SP> and the bearing of these can be determined by automatic directional indicators so that the position of the craft can be approximately determined by triangulation. In a second embodiment four radio stations of slightly different pattern are positioned at the points marked 4, 4<SP>1</SP>, 5 and 5<SP>1</SP> on Fig. 1, and each station radiates signals operating left right visual indicators on the craft to define an incoming and an outgoing course which are collinear and at right angles to the similar courses defined by adjacent stations. Each station also defines a course presented by aural indications on the craft at right angles to its visually-presented course line, Fig. 2 (not shown).
Patent GB-787963-A (GB)
Title: An injection syringe for use with cylindrical ampoules
IPC: A61M5/24
Filed: 1955-09-01
Abstract: 787,963. Hypodermic syringes. FARBWERKE HOECHST AKT. - GES. VORM. MEISTER, LUCIUS & BRUNING. Sept. 1, 1955 [Sept. 1, 1954], No. 25192/55. Class 81 (2). In an ampoule syringe the plunger rod 2, having curved claws 4, is surrounded by a non- rotatable sleeve 5 carrying a spiked member 6 so that, by pressure on the stopper 8, the spikes hold the stopper against rotation while the claws are engaged with it by rotation of the rod 2. After the stopper has been so gripped the syringe may be used for aspiration.
Patent GB-1106334-A (GB)
Title: Saw chain
IPC: B27B33/14
Filed: 1965-06-16
Abstract: 1,106,334. Sawing. OUTBOARD MARINE CORPORATION. 16 June, 1965 [13 July, 1964], No. 25367/65. Heading B5L. A non-cutting link 28 for a saw chain comprises a main portion 29 having an upper margin 33 and a trailing edge 63, and an upper tang 45 extending upwardly beyond the upper margin and projecting rearwardly beyond the trailing edge. In a saw chain, the links alternate with others not having upper tangs and are connected by pivots 37 to pairs 2 ... 7 of spaced links. Every other of the pairs of spaced links alternately has either a left- or right-hand cutting link 25 having a cutting portion 26 and, if desired, a depth gauge 24. The links 28 may have driving tangs 35 which are received in a peripheral groove 15 in the bar 11 of the chain saw. The upper tangs 45 extend to positions adjacent the depth gauge 24 and, during operation of the saw, engage the kerf as the chain travels round the nose of the bar to eliminate, or reduce, cutting to depths which may cause the saw to kick-back. The tangs also prevent material of small size from entering the space between succeeding cutting teeth and thereby prevent snagging.
Patent GB-170465-A (GB)
Title: A method of utilising ventilation air from coal mines
IPC: F23C99/00
Filed: 1920-09-02
Abstract: 170,465. Hindermann, A. Sept. 2, 1920. Natural gases, utilizing.-The ventilation air from a coal mine which contains methane is used for supporting combustion above ground, fur instance in boiler furnaces, coke ovens, or internalcombustion engines.
Patent GB-976196-A (GB)
Title: Improvements in roofs
IPC: E04D3/366
Filed: 1961-07-13
Abstract: 976,196. Roofs. SEPI. July 13, 1961 [July 20, 1960; March 30, 1961], No. 25454/61. Headings E1K and E1V. A roof has upwardly concave covering elements a, Fig. 1, each having at least two lateral margins c turned up vertically along straight edges, all parts of the elements between the margins c lying below the margins, the margins being clamped to elements with upstanding edges fixed to the roof framework, the covering elements not being held down except along their edges. In an exemplified roof construction aluminium alloy panels 14, Fig. 9, each have three upwardly and inwardly bent sides 14a, 14b, and 14c, which are reinforced by extruded aluminium sections 15a, 15b and 15c respectively on the insides of the bent up flanges and extruded aluminium sections 16a, 16b, 16c on the outsides of these flanges, the face of each panel being folded about two lines 14d, 14e converging downwardly from the corners at one end of the panel towards the opposite end of the panel on which drip flaps 14f, 14g are formed. Screw clamps 17 connect the upwardly bent sides 14a, 14b of adjacent panels to opposite sides of an inwardly flanged horizontally extending channel 6a which forms part of the upper flange of a latticework truss 1 of the roof framework. At the ridge of the roof the upwardly bent end 14c of each panel is clamped to a channel similar to the channel 6a which may or may not be secured to a ridge girder. A covering bead 18 clips over the clamps 17. The drip flaps 14f and 14g depend within extruded aluminium gutters comprising lower portions 20 and upper portions 22, Fig. 12, supported from the trusses by lugs 19 and bolts 23. The trusses 1 overhang the wall of the building at their ends, the overhanging portion of the roof being enclosed on its underside by plates 25 supported in housings 29(c) and 24 (not shown) carried by the gutter and front face of the building respectively. The over hanging portions of the trusses are of reduced depth. The lower flanges 7, Fig. 7 of the trusses are shaped to support ceiling panels 9. The webs of the trusses are formed by bent round steel bar welded to the upper and lower flanges.
Patent GB-709097-A (GB)
Title: Improvements in or relating to stirrups
IPC: B68C3/00
Filed: 1952-10-10
Abstract: 709,097. Stirrups. POPOFF, D. Oct. 10, 1952, No. 25459/52. Class 62 A stirrup has a detachable resilient tread comprising upper and lower parts 12, 14 and a spacer 13 which fits an opening in a stirrup iron 10. The tread may comprise an integral rubber moulding and one or more parts may be softer than the remainder. Alternatively the parts may be assembled by bolts or staples. In an alternative arrangements, Figs. 4 and 5, the tread is fitted to a stirrup iron which has an undercut recess 17.
Patent GB-669671-A (GB)
Title: Production of gaseous hydrogen chloride from an aqueous solution thereof
IPC: C01B7/00
Filed: 1949-10-04
Abstract: Gaseous hydrogen chloride is produced from an aqueous solution thereof containing a higher percentage of hydrogen chloride than an azeotropic mixture of the same by feeding the solution into the upper portion of a fractionating column wherein it is contacted with ascending steam which is <PICT:0669671/III/1> introduced or generated at the lower portion of the column and with an aqueous solution of a hygroscopic salt which is introduced at an intermediate portion of the column.  The column 3 is constructed, e.g. of impervious carbon or graphite, reinforced resins, stoneware, or glass enamelled material and comprises a top packed section 5, a top open section 4, an intermediate packed section 6, an intermediate open section 7, a bottom packed section 8 and a reservoir 9 for effluent salt solution. Hydrogen chloride solution is fed into section 4 and falls via a distributer plate 10 into section 6 where hydrogen chloride gas is stripped out by ascending steam fed via a pipe 32 into a vapour space 11 above reservoir 9.  The resultant substantially constant boiling point mixture drips through a perforated plate 12 onto a distributer plate 13 where it is mixed with a concentrated solution of a hygroscopic salt (e.g. calcium lithium, zinc, magnesium or ferric chloride) fed through a pipe 14 and as a result hydrogen chloride gas is salted out.  The resultant salt and hydrogen chloride solution falls down section 8 where hydrogen chloride gas is stripped out by ascending steam and the diluted salt solution from reservoir 9 is withdrawn and recycled to the column via a neutralizing tank 16 and an evaporator 20.  Hydrogen chloride gas and moisture are withdrawn from the top of the column via a pipe 23 and pass through a water-cooled condenser 24, a refrigerated after-cooler 25 and a mist separator 26 the condensed acid from which is fed back to the column via reflux lines 27 and 28.  The column may be operated at sub- or super-atmospheric pressures, the preferred range being 10-60 p.s.i. absolute.  If desired the steam introduced via pipe 52 may be steam from the evaporator 20.  Alternatively steam may be generated within the column by placing heating surfaces, e.g. of tantalum, in the bottom of the column.  U.S.A.  Specification 2,357,095 is referred to.
Patent GB-443732-A (GB)
Title: New or improved process and apparatus for clarifying and sterilizing beer and other liquids liable to fermentation or the like
IPC: C12H1/00
Filed: 1934-09-04
Abstract: 443,732. Centrifugal clarifying- machines. WORSSAM & SON, Ltd., G. J., and FOX, D. P. S., Wenlock Road, City Road, and ALFA-LAVAL CO., Ltd., 34, Millbank, both in London. Sept. 4, 1934 No. 25469. [Class 23] [See also Group VI] A rotary high speed clarifier for beer or the like is of the usual conical plate type adapted for working with liquid under pressure, and comprises a revoluble bowl 1 supported by a vertical spindle 2 running in bearings 3 and 4. The spindle is hollow, and conveys liquid from a supply connection 5 to the inlet duct 6 of the bowl. The central pillar 7 in the bowl is hollowed out at 8 to allow clarified liquid to pass from the bowl through a delivery nozzle 9 to a delivery connection 10. Between the supply connection 5 and the lower end of the spindle, and between the delivery connection 10 and the nozzle 9, hydraulic packings 11, 12 respectively are provided to maintain tight joints between the revoluble and stationary parts.
Patent GB-960977-A (GB)
Title: Improvements in or relating to devices for the thermal treatment of synthetic fibresand filaments
IPC: D02J13/00
Filed: 1962-07-03
Abstract: 960,977. Heating and hot-stretching filaments. FARBWERKE HOECHST A.G. July 3, 1962 [July 12, 1961], No. 25476/62. Heading B5B. A device for heating or hot-stretching filaments comprises a multi-surface metal body 2 whose surfaces 3 serve alternately as working surfaces for heating the filaments, means for heating the metal body, and a cap 4 of thermal insulating material provided with a slit shaped longitudinal aperture 5, the cap being shaped to fit the metal body in such a way that only one working surface is exposed in the aperture while the other surfaces are protected against loss of heat, the body being rotatable relatively to the cap so that successive working surfaces are exposed through the aperture. The term " mufti-surface " includes bodies of polygonal (Fig. 2) and circular (Fig. 5) transverse section. Preferably, the metal body surfaces are convex in the longitudinal direction. The metal body may be made of steel, and may be mounted rotatably about its longitudinal axis on a conical core of a material of good thermal conductivity e.g. a light metal. Heating means within the metal body may be an electric cartridge heater or as in Fig. 4 the core may be hollow and provided with means 11, 12 for the circulation of a heating fluid. By means of a pin 7 and locking bolt 8, the body can be swung aside for inspection, heat loss from the body being minimized by insulating disc 9 interposed between the metal core 1 and pin 7. In operation, the working surfaces 3 can be exchanged when worn by turning the body 2 to align a new working surface with the slit 5. In Fig. 6, the core and body are replaced by a single element 14 rotatable about its longitudinal axis. In Fig. 7, the core 1 is rotatably mounted about bearings at its lower end, so that by turning the core 1 a new working surface of the body 2 is exposed in the aperture. In both Figs. 6 and 7, a spring-loaded stop 15 keeps the body in a desired position.
Patent GB-361830-A (GB)
Title: Improvements relating to rolling mills
IPC: B21B31/30
Filed: 1931-09-11
Abstract: 361,830. Rolling. DEMAG AKT.-GES., Duisburg, Germany. Sept. 11, 1931, No. 25562. Convention date, Sept. 11, 1930. [Class 83 (iv).] In a 3-high or other rolling mill if the middle roll b tilts horizontally so that its axis is out of the vertical plane of the other two roll axes it will tend to move axially say to the left so that the sloping surfaces e of the bearing blocks d and the roll frame f will slide over each other and move the roll end back horizontally to a parallel position with the other roll axes. The bearing blocks g may be similarly formed in the other side frame h.
Patent GB-501076-A (GB)
Title: Improvements in and relating to boxes for cigarettes and the like
IPC: A24F15/20
Filed: 1937-09-22
Abstract: 501,076. Boxes for cigarettes &c. ABIGERAIGE, M. J. Sept. 22, 1937, No. 25748. [Class 18] In an open-sided carrier a plurality of tubes, one for each cigarette &c. are pivotally mounted about an axis transverse to the tubes, each tube being movable from a position in which it is releasably held with its open end covered by a closure part of the carrier to a position in which the open end is clear of said closure part and the contents may be removed. In Figs. 1 and 2 the carrier comprises a base 12, two ends 13, 15, and a flanged top 14 forming a closure. Partitions 16-19 form five compartments each housing two tubes secured to each other lengthwise. A pin 24 passes through elongated slots 23 in each pair of tubes. The tubes rest on an elastic strip 25 passing through the partitions. To remove a cigarette a tube is pulled down axially thereof until its end is free of the top 14 and then pivoted outwardly. In Fig. 3 each pair of tubes has a pivoted springy strip 28 having a lip 32 which is pulled upwardly, the other end 30 simultaneously pivoting the tubes outwardly. The levers 28 can be held in the position shown by press fasteners or by an elastic strip. The tubes may be mounted singly. Each compartment of the carrier may house only one tube.
Patent GB-791014-A (GB)
Title: Improvements in or relating to spark machining
Inventor: BENNETT ROBERT STANLEY
IPC: B23H1/04
Filed: 1955-09-09
Abstract: 791,014. Cutting by spark discharge. BIRMINGHAM SMALL ARMS CO., Ltd. Sept. 4, 1956 [Sept. 9, 1955; March 2, 1956], Nos. 25812/55 and 6546/56. Class 83 (4). A method of forming by spark machining a deep hole, comprises using an electrode having a cross-section smaller than is ordinarily used for a hole of the cross-section required, and periodically encouraging side sparking to increase the section to that required. Side sparking may be encouraged by interrupting the lengthwise feed of the electrode and/or increasing the operating voltage by 10-20 per cent. The operating voltage is preferably rectified A.C. The invention is preferably used for forming holes of 0.02-0.03 inch diameter and each feeding stage is limited to 1 or 1¢ inches in length before the cross-section is increased by side sparking. The interruption of feed and/or the increase of voltage may be effected automatically at the required intervals. Reference is made to machining heat and corrosionresistant alloys used for gas turbine blades.
Patent GB-484063-A (GB)
Title: Rolling lever valve motion for locomotive and marine steam engine
IPC: F01L31/16
Filed: 1937-09-23
Abstract: 484,063. Engine valve-gear. LENTZ, H. J. Sept. 23, 1937, No. 25834. Convention date, April 26. [Class 122 (ii)] In a rolling-lever, cam valvegear for locomotive and marine steam engines in which the spindles of the admission and exhaust valves are coaxial and are operated by oscillating cams oppositely directed to the levers, small bearing-surfaces are provided to operate during the rapid lifts of the valves, and larger bearing- surfaces, which act subsequently, to withstand the accelerating forces. The valve-chest has two insert cages 11, 14 which contain admission and exhaust valves 2, 3 with coaxial spindles 4, 5 respectively, The control is effected by separate admission and exhaust cams 7, 8 fixed on the shaft 6. Intermediate admission and exhaust levers 9, 10 are arranged between the valve stems and the cams and not on the spindles 4, 5 respectively. The lever 10 is forked. The exhaust spindle is recessed at 5a to accommodate the lever 9. Steam is supplied from a chamber 15, and the exhaust passes to a chamber 13. The valves are pressed to their seats by steam pressure which is supplied to the internal space 18 of a hollow part 17 of the cage 14 through a pipe 19. The spindle 4 has a shoulder 4a upon which the steam acts. During running, the steam in chest 15 acts also to close the admission valve. The cam levers are constructed so that the valves are rapidly lifted from their seats, and, during the rising movement when the accelerating-forces are effective, larger bearing surfaces function. The control cam 7, Fig. 6, ends in a rib 7a with a valvestarting end 7b thereon. During acceleration, the surface 7 is effective. The exhaust cam 8 has a double finger 8a which initially slightly opens the valve. Similarly the lever has small and large faces 9a, 9. The control cam may be made symmetrical, so that it may be reversed when worn. The control faces on each side may be differently shaped for slow and rapid running engines respectively. The rolling-lever action may be used with cams centrally arranged of the cylinder with valves on either side. In a modification, the control cam is made in two parts so that the admission face is adjustable relative to the exhaust face. The two parts may be operated by different driving- levers and be separately controlled. The driving rods may be connected at different points of the valve-gear.
Patent GB-1508127-A (GB)
Title: Method and device for testing a chain-link mechanism
IPC: G01M13/04
Filed: 1974-06-11
Abstract: 1508127 Testing rollers AGFA-GEVAERT 29 May 1975 [11 June 1974] 25843/74 Heading G1W [Also in Division F2] An endless circulating chain-link mechanism (e.g. in apparatus for stretching polymeric film), has a series of rollers 30, 31, 37 and to detect the presence of a defective roller, each roller is, at a certain region of the endless path, engaged by a driven rotating member 57, 59, 58 to bring the roller (being out of contact with its guides) to a predetermined speed of rotation. The energy consumed in maintaining this speed for a given time is used as a measure of the resistance to rotation of that roller. The energy may be monitored and recorded and warming signals may be produced if the energy exceeds a given value. The position of a defective roller may be detected by an electronic device employing a memory and indicated, for example by a marker dye. If electric motors are used to drive the members 57, 58, 59 a signal proportional to the current taken from a constant voltage supply can be integrated to give a measure of the energy. Measurements of each roller may be made over a number of revolutions of operation of the chain and average values calculated.