baber/WOPTO huggingface dataset:
Patent GB-789021-A (GB)
Title: Improvements in or relating to photographic roll-film cameras
IPC: G03B19/04
Filed: 1955-06-08
Abstract: 789,021. Photographic cameras. ADOXKAMERAWERK GES. June 8. 1955 [June- 21, 1954], No. 16516/55. Class 98(1) A roll-film camera with an interchangeable magazine which is resiliently pressed' forward by a hinged back wall has an interlock between the back wall latch and the closure of the image aperture of the magazine, whereby the back wall latch is locked when the image aperture is opened, and unlocked when the image aperture is completely closed. As shown in Fig. 3, the interchangeable magazine 11 has a back hinged at 12; and film from a cassette 15 passes between a gate and a spring-urged presser plate 40, over a film-metering roller or sprocket 16 to a take-up spool 17. The rewind spindle, take-up spool 17 and roller or sprocket 16 have projections 33, 59, 20 (Fig. 2) which engage projections 105, 58, 21 inside the damera body. Projections 105, 21 are fast with the rewind and filmwinding knobs 37, 36 respectively, and the projection 58 is connected to film-metering mechanism in the camera. Such mechanism 'may. however, be mounted in the magazine, in which case projections 58, 59 are omitted. A film indicator disc 6 and a counter disc 7 (connected to the film spool 17) are mounted on the outside of the magazine and are viewed through lighttrapped windows in the camera back. The part 33 may be so constructed that the magazine can be removed in one position only of the feed mechanism, and that removal is prevented when the shutter is set. The camera has a hinged back 2 which. when the magazine has been inserted, is closed and latched by a sliding latch 25. A spring' 45 on the camera back urges the magazine forward so that projections 29 at the edge of the film gate are pressed against the camera body. The film gate is closed by a shutter consisting of sliding plates 26, 27 (see Fig. 5), or alternatively, a flexible plate. The shutter is operated by a finger 56 which engages a knob 32 slidable in the base of the camera to open the shutter. At the same time a sliding plate operated by knob 32 locks the latch 25, so that the camera cannot be opened until the shutter 26, 27 has been closed again, and also frees the film winding mechanism. The magazine may, as shown, have one cassette 15 into which exposed film is rewound; in an alternative two cassettes are used and a film-cutting knife is provided to cut the film which has been exposed and wound into the second cassette, which is then removed.
Patent GB-995279-A (GB)
Title: A method and an apparatus for analysing a solid substance
IPC: H01J49/42
Filed: 1962-04-30
Abstract: 995,279. Mass spectrometers; ion sources. SIEMENS-SCHUCKERTWERKE A.G. April 30, 1962 [April 29, 1961], No. 16524/62. Heading H1D. A method of analysing a solid substance with a mass filter based upon the Paul principle, e.g. as described in Specification 773,689 comprises bringing the substance into a gaseous and/or vaporous phase by cathode sputtering and then simultaneously or subsequently ionising it. The ionisation preferably takes place directly in the ion source, and a rare gas, e.g. helium or argon, may be present to increase the rate of sputtering. In one form of the apparatus for carrying out the method, the cathode 22 is rod-like and carries the substance P to be examined, a further cathode plate 29 with an extension 27 being provided. A cylindrical anode 15 surrounds the cathode and an axial magnetic field is provided by a magnet 11 between polepieces 16, 28. The cathode is preferably hollow and in the form of a capillary tube. The ions thus formed are projected in a beam through a hole 14 in the polepiece 28 and are analysed by the mass filter. In further embodiments, the cold ion source may have readily exchangeable parts, or the capillary cathode may extend outside the vacuum envelope thus allowing the material P to be readily introduced.
Patent GB-197221-A (GB)
Title: Improved safety device for use with ladders
IPC: E06C7/48
Filed: 1922-06-15
Abstract: 197,221. Evans, J. J., and Ramsden, J. T. June 15, 1922. Ladders.-A flexible and elastic attachment for ladders resting against poles comprises a band k for encircling the pole on the same side as the ladder, and spring attachment,s h for connecting the band to the ladder extensions e. In a modification, the band is of rubber or other spring material so as to act as a spring itself.
Patent GB-567875-A (GB)
Title: Process for the isomerization of hydrocarbons
IPC: C07C5/27
Filed: 1941-12-23
Abstract: Saturated hydrocarbons containing 4 to 9 carbon atoms are isomerised in presence of a catalyst comprising a complex double compound of an aluminium halide with a hydrogen halide in admixture with a molecular excess of a metal salt which does not react with the aluminium halide, at a temperature above the melting point of the catalyst, but below that causing substantial degradation of the hydrocarbon. Halides of As, Zr, Nb, Mo, Pd, Sn, Sb, Hf, Ta, W, Tl, Pb, Bi and U may be used, e.g. SbCl3 may be used with AlCl3.  Salts or mixtures boiling below 300 DEG  C. are preferred.  Butane or gasoline fractions may be so treated.
Patent GB-186129-A (GB)
Title: Improved means for producing alternating electric currents
IPC: H03B11/06
Filed: 1921-06-16
Abstract: 186,129. Round, H. J. June 16, 1921. Commutators switching-arrangements.-In commutator .switching-arrangements for generating alternating or oscillatory current, of the kind in which a tuned circuit O is alternately connected to a battery, and disconnected 'therefrom, by means of a rotary commutator, the connections include a number of resistances R arranged in parallel and each connected to a brush T bearing on the commutator bars K which are in permanent connection through a slip ring S and brush B with one side of the battery. The make-andbreak frequency may be equal to, or a sub-multiple of, the frequency of the circuit O. Each resistance may be shunted by a condenser, and may include a vacuum valve or similar device for preventing back surges of current. The brushes are preferably formed of single wires of tungsten, molybdenum, or other hard material difficult to oxidize. The commutator bars K may be of the same materials as the brushes, and the insulation may be air, glass, porcelain, &c.
Patent GB-396913-A (GB)
Title: Improved lawn mower sharpener
IPC: B24B3/42
Filed: 1932-06-13
Abstract: 396,913. Sharpening lawn - mower blades. MUIR, R. J., Casa de Lucia, Morella Road, Mosman, near Sydney, Australia. June 13, 1932, No. 16664. [Class 60.] A sharpener for use on a lawn-mower consists of a bar 12 of abrasive secured in a channelshaped carrier 8 having ends 9, which may be adjustable longitudinally, carrying bolts 17 surrounded by springs 18 and passing through holes in the ends 15 of channel-shaped supports 14. The supports 14 have thereon bolts 16 whereby the supports are secured adjustably in brackets 20, which are arranged to be held bv the bolt 21 of the fixed blade ; slotted struts 22 are pivotally secured to the brackets and are engaged by the roller bracket bolt 23. In operation, the driving pinions of the mower are reversed and the mower is traversed in overturned position ; oil is supplied to the blades 25 and these, after passing the sharpening bar 12 serve, by carrying particles of the abrasive thereon, to grind the fixed blade. 396,927. Mops. JANNEY, P. L., Ridgway, Jordan Road, Four Oaks, Warwickshire. July 9, 1932, No. 19462. [Class 19.] In a mop and wringer of the type shown, a link c, Fig. 1, is introduced between a handle d and ears a<1> on a plate a carrying the mop h. The link c engages a spring member b which holds it firmly in the position shown. The handle is s drawn away from the spring b when the mop is wrung by turning a lever f<2>. When the mop becomes stretched, a wire member g can be adjusted by upturned parts g<2>, Fig. 2, engaging a series of notches a<3> in the turned-up edges of the plate a.
Patent GB-125676-A (GB)
Title: Improvements in or relating to Gas Burners.
Inventor: HALL ISAIAH
Filed: 1918-05-13
Abstract: 125,676. Hall, I. May 13, 1918 Blowpipe burners; atmospheric gas burners.- The internal an supply is admitted to the mixing-chamber a through a main outlet and subsidiary outlets through which the air is discharged in parallel streams. In one form, the burner is provided with a central air conduit i extending the full length of the mixing-chamber a and provided at various points of its length with bent tubes j, the gas being supplied through an inclined branch b to the mixing-chamber.
Patent GB-420917-A (GB)
Title: Improvements relating to impression cylinders for printing presses particularly applicable to rotary printing presses
IPC: B41F27/10
Filed: 1933-06-10
Abstract: 420,917. Printing machines. CRABTREE & SONS, Ltd., R. W., Water Lane, and PHYTHIAN, T. E., Haydngarth, St. Chads Drive, Headingley, both in Leeds. June 10, 1933, No. 16684. [Class 100 (ii)] An impression cylinder for a rotary printing-press of the kind in which the printing-cylinder is fitted with four plates abreast and the gaps between two pairs of plates are staggered is constructed with one fixed portion a of a width equal to two plates and formed with a blanket-receiving aperture g, and with one adjustable portion b in the form of a sleeve which is also formed with a blanket-receiving aperture g<1>. The sleeve b fits on a reduced portion of the cylinder a and is secured in position by an end plate c secured by screws h to the cylinder a. Each end of the sleeve b is bevelled and is received in corresponding recessed parts of the parts c, d. To enable the printing-couple to be reversed the sleeve b can be secured in either of two positions arranged at equal angular displacement from the aperture g. In these positions the aperture g' registers with an aperture k containing a spindle d for tensioning the impression blanket. To balance the cylinder apertures e, f are formed in the sleeve b opposite to the apertures g, g<1>, and cavities f<1> are formed opposite to the apertures k.
Patent GB-1333152-A (GB)
Title: Electro-optical measuring apparatus
IPC: G01R15/24
Filed: 1971-05-24
Abstract: 1333152 Measuring current BROWN BOVERI & CO Ltd 24 May 1971 [26 May 1970] 16689/71 Heading G1U In a current measuring system a plane polarized beam of light 1, Fig.1, is projected, via an electro-optical device 3, which rotates its plane of polarisation through an angle ¢# proportional to the current to be measured, to a beam splitting mirror 5, and the resulting component beams 6, 7 are passed via polarizers 8, 9, having their polarizing angles orientated at  #/8 as indicated, to photodiodes 10, 11 which produce signals - and respectively, these signals are amplified 12, 13 applied to a device E to produce output signals and on leads 22", 23", respectively, which signals are combined 15, 16 with quadrature signals from an oscillator 14 and summed 19 and limited 20 to produce a phase modulated signal cos(wt - Ï) which may be demodulated in any desired way to give Ï. The device E functions in two stages: in the first, Fig. 2, the signal on lead 23, namely i 2  is amplified 25 under the control of a differential amplifier 24, which compares the D. C. levels of the signals i 1  on lead 22 and the amplified signal i 2 , so that their D.C. levels are brought to equality, i.e. the output signals on leads 22', 23' are  and where k = k 1 , and in the second stage Figs. 3 or 4 (not shown), the common factor k is established - by sampling either one Fig. 3 (not shown), or their sum Fig. 4 (not shown), at the instants at which i 1 '= i 2 ', which occur when Ï = 0, and subtracting the value of k from both i 1 ' and i 2 ' to produce the signals i 11  and i 21 .
Patent GB-1307152-A (GB)
Title: Flame-proofing compositions
IPC: D06M11/13
Filed: 1971-05-24
Abstract: 1307152 Flame-proofing composition; foamed amine-aldehyde compositions POLARIS CHEMICAL CORP 24 May 1971 [12 June 1970] 16709/71 Headings C3C and C3R [Also in Division D1] An aqueous flame-proofing composition comprises (a) a foaming agent (which generates a gas on heating, e.g. ammonium salts, alkali metal halides and sulphamic acid), (b) urea or thiourea or a water-soluble salt thereof, (c) a poly-chloro- or -bromo-propanol ester of phosphoric acid, phosphoramidic acid or phosphorodiamidic acid, a salt of an acid such. ester, or a mixture of such esters, (d) a water-soluble amine - aldehyde resin, and (e) an acid-generating catalyst. In Examples I-VIII solutions are prepared containing 0À2-5 wt. per cent melamine-formaldehyde resin, 0À7-10 wt. per cent of a 1 : 1 mixture of NH 4 Br and (NH 4 ) 2 HPO 4 , 0À7-10 wt. per cent of a 1 : 2 mixture of urea and bis-(2 : 3-dibromopropyl)-ammonium phosphate, and 0À1-2 wt. per cent of 2-methyl-2- amino-propanol hydrochloride; these are used for impregnating carpets. In Examples IXXIII the above constituents are varied using, respectively : urea-formaldehyde, urea-glyoxal, melamine - glyoxal, guanidine - formaldehyde, guanidine - glyoxal and urea - formaldehyde/ urea - glyoxal resins; NH 4 Br/(NH 4 ) 2 HPO 4 / NH 4 SO 2 NH 2  (1 : 2 : 1 parts by weight); thiourea, and a number of dibromopropyl or dichloropropyl esters of phosphoric acid, acid salts or acid amides; and 2-methyl-2-aminopropanol hydrobromide, 4 - aminobutanol, n - propylamine, or ethanolamine hydrochloride, or ZnCl 2  or MgBr 2 . Uses.-Flame proofing carpets.
Patent GB-595810-A (GB)
Title: Improvements relating to spindles for twisting rayon and other threads
IPC: D01H1/00
Filed: 1945-07-02
Abstract: 595,810. Twisting rayon &c. COMPTOIR DES TEXTILES ARTIFICIELS, SOC., A.R.L. July 2, 1945, No. 16823. Convention date, Dec. 13, 1943. [Class 120 (ii)] A spindle 1 twisting at delivery, driven by a wharl 2 and carrying a bobbin of rayon A mounted between a plate 3, fixed to the spindle, and a cap 4 pushed into the top of the bobbin, is provided, above the centre of gravity G of the package, with an automatic centering device for the bobbin comprising a light disc 10, with rounded edges and of slightly less diameter than the interior of the bobbin, mounted freely on the spindle between two split rings 11, 12 which take into grooves in the spindle.
Patent GB-1075383-A (GB)
Title: Improvements in pile driving plant
Inventor: KNOWLES NORMAN
IPC: E02D13/04
Filed: 1965-04-21
Abstract: 1,075,383. Pile driving. LEONARD FAIRCLOUGH Ltd. April 20, 1966 [April 21, 1965], No. 16906/65. Heading E1H. An adjustable strut (B<SP>1</SP>), Fig. 2 (not shown) for a pile driving plant is formed in two por- .tions (b<SP>1</SP>), (b<SP>2</SP>), one (b<SP>1</SP>) sliding within the other (b<SP>2</SP>) and with a plurality of holes (b<SP>3</SP>), (b<SP>4</SP>) to receive a bolt by which the two portions are connected together at the required length to obtain the desired angle of rake for the pile frame (A) Fig. 1 (not shown), the strut (B<SP>1</SP>) being expanded by a hydraulic cylinder (d) to bring the required holes into register. A pump on the crawler excavator/crane (B) supplies hydraulic fluid to each end of the cylinder (d) through a selector valve (d<SP>6</SP>) and a pressure adjuster (d<SP>7</SP>).
Patent GB-1603340-A (GB)
Title: Potentiated acellular vaccines
IPC: A61K39/116
Filed: 1978-04-28
Abstract: In the method intended for potentiating the action of vaccines containing, as vaccinal principle, RNAs or ribosomes of at least one bacterial strain having polysaccharide capsules, the capsular polysaccharides extracted from at least one of the aforementioned bacterial strains having polysaccharide capsules are added to the vaccine. The method is useful, in particular, for preparing vaccines for the prevention of respiratory diseases.
Patent GB-1284974-A (GB)
Title: Novel diacyl penicillins and process for their production
Inventor: ABE J
IPC: C07D499/12
Filed: 1970-04-09
Abstract: 1284974 Diacyl penicillins TOYO JOZO KK 9 April 1970 [11 April 1969] 16961/70 Heading C2A Novel diacyl penicillins of formula wherein R is a carboxyl-protecting group and R 1  and R 2  are the same or different and are hydrogen or halogen, are prepared by reacting a benzylpenicillin ester in which the esterifying group is the group R as above, with a chlorinating agent in the presence of a tertiary organic base to give an imide chloride group-containing compound of formula wherein R is as above, and then reacting this compound with an isoxazole carboxylate of formula in which M is a metal atom and R 1  and R 2  are as above. Suitable carboxyl-protecting groups R are methyl, ethyl, t-butyl, p-methoxybenzyl, benzyl, p-nitrobenzyl, benzhydryl, phenacyl, p-bromophenacyl or trimethylsilyl. The preparation of the p-bromophenacyl and p-nitrobenzyl esters of benzylpenicillin by reacting the penicillin with the appropriate acyl bromide is described. The preferred chlorinating agent is PCl 5 , others suitable being PCl 3 , POCl 3 , COCl 2  or SOCl 2 ; the reaction is performed in an anhydrous organic solvent which is preferably water-immiscible, at about - 20‹ to 25‹ C. The tertiary organic base is preferably a weak base such as pyridine, quinoline or dimethylaniline. After the imide chloride preparation step, the reaction solution may be used for the next stage without further purification, or, if desired, may be filtered to remove any precipitated tertiary base hydrochloride, washed with dilute aqueous alkali to remove chlorinating agent derived compounds (e.g. POCl 3  and HCl) and then concentrated and redissolved in another reaction solvent. The isoxazole carboxylate salt may be that of K, Na, Li or Ag. The reaction may be effected by simply adding the salt to the imide chloride solution from the first stage, if necessary with heating to 40‹ to 50‹ C. The reaction mixture is then washed with water, aqueous acid and alkali, concentrated and chromatographed on a silica gel column using, e.g., benzene-ethyl acetate. The required diacyl penicillin may be isolated by freeze-drying the eluate. The diacyl penicillins may be de-esterified, to the corresponding penicillanic acid; dephenylacetylation of the latter provides a means for preparing useful isoxazolyl penicillins.
Patent GB-184945-A (GB)
Title: Improvements in and relating to baker's ovens
IPC: A21B1/00
Filed: 1921-06-21
Abstract: 184,945. Christie, B. A., (trading as Christie, J. C.), Henwood, J. H., and Reid, W. June 21, 1921. Lighting and observation devices for ovens.- In a gas-fired bakers' oven having multiple-jet burners e, arranged on one or both sides of the oven floor, a gas pipe g<2> may be inserted through an aperture h in the wall of the oven for inspection purposes or for lighting the burners.
Patent GB-749956-A (GB)
Title: Improvements in or relating to rotary earth-boring tools
IPC: E21B10/26
Filed: 1954-06-09
Abstract: 749,956. Earth-boring apparatus. MARTIN; J. A., and MARTIN, J. M. June 9, 1954, No. 16981/54. Class 85 A rotary earth-boring tool, for enlarging an existing borehole accessible at both ends, comprises a tubular hub 30, an annular rim 31, tubular pipes 32 interconnecting the hub and the rim, and a series of radially-disposed cutter teeth 35 adjustably mounted on a plate 34 secured to each of said pipes 32. The outermost tooth of each series projects radially outwards and, like the remainder of the teeth of the series, forward of the rim. The pipes 32 communicate with the bore of the hub 30 so that liquid introduced into the hub will be discharged forwardly through outlets 33 therein. The leading end of the bore through the hub is sealed off, and the ends of the bore are suitably threaded for connection in a string of drill rods extending through the existing bore.
Patent GB-684869-A (GB)
Title: Improvements in or relating to tractors and implements therefor
IPC: A01B59/06
Filed: 1950-07-07
Abstract: 684,869. Agricultural implements. ALLIS-CHALMERS MANUFACTURING CO. July 7, 1950 [Aug. 24, 1949]. No. 17019/50. Class 6 (i). A tractor is provided with a control element 9 pivotally supported for fore and aft movement in response to variations in an implement draft induced force. A hydraulic lift mechanism is connected with and is responsive to movement of the control element and comprises a ram unit 63 connected to lifting arms 72. A longitudinally extending draw-bar 19 is pivoted by a pin 32 to a spring assembly 21 including two bar members 29 embracing a pin 12 which allows vertical movement of the bar 19 about pin 12 and movement of the draw-bar with respect to the element 9 when the implement meets an obstruction. The draw-bar embraces a member 37 mounted on links 34 pivoted to the tractor framework, the member 37 limiting transverse movement of the draw-bar. The implement comprises two transversely spaced members 43 joined by a plate 45 which rests under the draw-bar and by a plate 44 which receives the end of the draw-bar. Pins 46 and 48 attach the implement to the draw-bar and are readily releasable. The implement is pivoted on a lift bar 50 rigidly secured to members 43 and is vertically adjustable about bar 50 by means of a handle 61 and screw 57. Freely mounted links 84 attach the lift bar 50 to the lifting arms 72. An adjusting screw 81 is mounted between one of the links 84 and bar 50 to enable the implement to be tilted about a longitudinal axis. Movement of element 9 is transmitted by levers 87, 88 to suitable control mechanism enclosed in a pump housing 62. A manually actuated lever 89 is connected to the control mechanism for determining the working depth of the implement and to'lift and lower the implements as desired.
Patent GB-231370-A (GB)
Title: Improvements relating to the mounting of smoke tubes in boilers
IPC: F22B37/10
Filed: 1924-07-16
Abstract: 231,370. Weitz, Les Fils de J., and Altmann, C. P. July 16, 1924. Plates, jointing pipes to.-Smoke tubes inserted through the tube plate b at the smoke-box end of a boiler are adapted to be screwed to the tube plate a at the furnace end and each have at the smoke-box end an end piece k secured by screwing, brazing, &c., onto the end of the tube. The end piece k has a flange l lying within the thickness of the tube plate b on which bears packing m, compressed by a ring n and nut o. In the case of internally smooth tubes, notches are provided in the end of the end piece k for a tool for screwing the tube into the screwed socket d screwed into the furnace tube plate a. The furnace end of the tube is provided with an end piece j which screws into the socket d against a metalloplastic joint p.
Patent GB-120457-A (GB)
Title: Improvements in Clinometers or Elevation Indicators for Grenade-throwing and like Appliances.
Inventor: RIDOUT WILLIAM
IPC: F41G1/48
Filed: 1917-11-20
Abstract: 120,457. Ridout, W. Nov. 20, 1917. Sights.-Consists of a clinometer sight for use with trench mortars and other appliances for throwing grenades and the like at relatively short ranges, the clinometer comprising a casing containing a movable damped index co-operating with a scale. In the construction shown in Figs. 1, 2 and 3, the index is a helical line 14 on a weighted drum 21 pivoted in the casing 16. The index is seen through a graduated helical slot 13, Fig. 2, in the casing. The drum is half filled with liquid and is provided with a vane 24 having perforations 25 through which the liquid can flow. In a modi. fication, Fig. 5, air is used as the damping-fluid. The casing 16 is hermetically sealed and the in. dex 14<1> is on an arm 26 projecting from a pivoted spindle 27 which also carries a vane 29 closely fitting the casing and forming a pendulum. In the casing are two fixed vanes 30 which nearly touch the central spindle 27. The air inside the casing acts as a damping-fluid, being forced through the narrow space between the vanes 30 and the spindle 27 when the vane 29 swings. In a further modification, the index is mounted on a spindle provided with a magnet or magnets mov. ing in close proximity with the ends of the case, which is made of conducting material. The relative movement between the magnets and the case sets up eddy currents which bring the index to rest. The graduations and numerals on the scales are marked with self-luminous paint. The clinometer is secured to a rifle just behind the backsight by clips 10, 11, Fig. 1, entering the side apertures in the nose cap.