baber/WOPTO huggingface dataset:
Patent GB-613912-A (GB)
Title: Improvements in photographic document copying apparatus
IPC: G03B27/50
Filed: 1945-02-02
Abstract: 613,912. Photographic document-copying apparatus. FASSEL, E. G. Feb. 2, 1945, No. 2713. [Class 98 (i)] To obtain paired, spaced apart, photographs of the opposite sides of a document, corresponding movements of the document and sensitized film are effected and rays of light reflected from the opposite sides of the document are projected intermittently on to different portions of said film with a frequency to give continuous images of the respective sides of the document, the projections from one side of the document being in alternation with those from the other, illumination of one side of the document being prevented while the other is being photographed, and projection of light rays transmitted through the document also being prevented. In the apparatus shown the document is fed by rollers 27 between plates 10 and 11 in which are formed, in register, exposure slots 12, 13. The feed rollers are driven by shafting 29, 30, 31, 32, which also drives the sensitive material 60 in the camera. Lamps 17, 18 are controlled by a rotating contact device, driven from the shafting, which turns on the lamps intermittently and alternately. A rotating shutter 35 is also provided to close the light path to the camera from the side of the document not illuminated. In a modification, a pair of oscillating strip members is provided adjacent the plates 10, 11, to close the slots 12, 13 alternately. The shutter 35 and the intermittent lamp illumination may then be dispensed with.
Patent GB-524864-A (GB)
Title: Improvements relating to folding wing aircraft
IPC: B64C3/56
Filed: 1939-01-26
Abstract: 524,864. Controlling aircraft. GENERAL AIRCRAFT, Ltd., ARCHDALE, G. E., and BROWSE, C. W. E. Jan. 26, 1939, No. 2734. [Class 4] In a folding wing aircraft structure having mechanism for transmitting control movements across the folding joint when the wings are fully spread but which does not interfere with the swinging of the parts when the wings are being folded, the rod or cable 11 operated from the cockpit is connected to a swinging element 13 pivoted on a bracket 15 on the fixed part 3 of the aircraft and having a pin-and-slot connection 21, 22 with a swinging element 16 pivoted on a bracket 18 on the span 4 of the folding wing and connected to the rod 20 for controlling an aileron, wing flaps, or for operating a control of an engine mounted on the folding wing. In the position shown, the wing is folded, the pin 21 of the centralized control being approximately co-axial with the hinge pivots 5, 6, and the parts 16, 20 being locked. When the wing is extended, the lever 16 is above and parallel to the lever 13, the pivots 12, 19 being co-axial.
Patent GB-174644-A (GB)
Title: Apparatus for forming articles of glass
IPC: C03B9/193
Filed: 1920-09-24
Abstract: 174,644. Miller, W. J. Oct. 16, 1919, [Convention date]. Pressing.-Relates to pressing- mechanism, particularly that forming part of a press-and-blow machine, and consists in providing an air-cushioning device for cushioning the movement of the plunger. In the machine shown in Fig. 1, a number of parison moulds H are mounted on an intermittently rotated table E. The gather, after it has been dropped into a mould is pressed by a water-cooled plunger K, Fig. 3, the rod 96 of which is fitted with a pneumatic cushioning-cylinder 100 provided with an adjustable release valve 122 by which the pressure of the plunger K may be varied. The rod 96 is threaded, and a nut 127, which makes contact with the cover 101 of the cylinder 100, allows the degree of cushioning to be adjusted.
Patent GB-741485-A (GB)
Title: Improvements in or relating to a distillation process for working-up reaction mixtures obtained by the oxidation of acetaldehyde
Inventor: POULSOM ALEC ELCE EDMUND
IPC: C07C51/44
Filed: 1953-01-31
Abstract: <PICT:0741485/III/1> In a process for the oxidation of acetaldehyde to acetic acid and/or acetic anhydride, the product from the reactor is distilled to remove overhead the components boiling lower than acetic acid, i.e., unchanged acetaldehyde, methyl acetate, acetone and formaldehyde; and this volatile mixture is subjected to extractive distillation with water in order to strip formaldehyde therefrom.  The vapours from the extractive distillation still, thus freed from formaldehyde, are condensed and/or subjected to rectification.  The removal of formaldehyde in this manner obviates the deposition of paraformaldehyde in the cooler parts of the apparatus.  The amount of water introduced is preferably such that the formaldehyde concentration in the aqueous effluent from the extractive distillation still is notmore than about one per cent. Water may be introduced at various points of the still, and/or the aqueous solution in the base of the still may be circulated, provided some fresh water is added above the feed point of the organic mixture.  It is desirable to scrub with water the effluent gases from the oxidation reactor; and the scrubbing water is thereafter used, supplemented if necessary with fresh water, for the extractive distillation still.  The liquid products from reactor 11 are fed to fractionating column 14 from which vapours containing 59 per cent acetaldehyde, 31 per cent methyl acetate, 7 per cent acetone and 2.75 per cent formaldehyde are removed overhead.  These vapours are passed through line 15 to the 12th plate of extractive distillation column 13, which is equivalent to thirty-one theoretical plates. The effluent gases from reactor 11 are passed to scrubber 12 where they are contacted with a countercurrent flow of water to remove acetaldehyde, methyl acetate and acetone therefrom.  The water discharged from scrubber 12 is fed on to the 19th plate of column 13. Live steam is introduced through line 21 into the base of column 13, and the pressure in the column is maintained at 2.2 atm.  The vapours from the head of column 13 pass via line 22 into condenser 17.  The condensate which contains 74 per cent acetaldehyde, 21 per cent methyl acetate, and 5 per cent acetone, but no formaldehyde, flows into divider 18 where it is divided into three parts.  One part is supplied through line 16 as reflux to column 14, another part is returned through line 19 as reflux to column 13, and the remaining part flows to storage tank 20. The water discharged from the base of column 13 contains 0.07 per cent formaldehyde and 0.4 per cent acetic acid.
Patent GB-1417822-A (GB)
Title: 4,8-dimethoxy-furo 3,2-f- benzoxazol-2-yl acethydroxamic acid its process of preparation and its therapeutic preparation
IPC: C07D307/86
Filed: 1974-01-22
Abstract: 1417822 Furo(3,2-f)benzoxazole derivatives DELALANDE SA 22 Jan 1974 [19 Feb 1973] 02858/74 Heading C2C The novel compound of Formula I is prepared by reacting 2-ethoxycarbonylmethyl- 4,8 - dimethoxy furo - (3,2-f) - benzoxazole with hydroxylamine. The above ester is prepared by reacting ethyl iminomalonate with 4-amino-3-hydroxy-2,5-dimethoxybenzofuran. Pharmaceutical compositions in conventional forms for oral, rectal or parenteral administration and having vasodilatory, antibronchoconstrictic, anticholinergic, antihistaminic, antiserotonic, antibradykinine, hypotensive, peripheral vasodilatory and cardiac analeptic activity comprises an above novel compound and a carrier or diluent.
Patent GB-215077-A (GB)
Title: Improvements relating to the printing of photographic films
IPC: G03B27/16
Filed: 1923-01-31
Abstract: 215,077. Lawley, H. V. Jan. 31, 1923. Printing-apparatus.-Apparatus for printing a number of positive kinematograph films simultaneously from a single negative film by the variable illumination method comprises a number of contact devices D, one for each change of light, operable through circuit connection from contacts on or devices operated by the different sections of negatives, each contact device D in its operation closing in succession circuits corresponding in number to the positives to be produced to bring into use the printing light of the required intensity for all said positives. The contact devices are used in connection with switch devices preferably of the kind described in Specifications 166,340 and 180,189. In the construction described, for printing four positives simultaneously, and having a range of ten light intensities there are ten contact devices D, each having four contacts, one for each film, and each comprising a ratabable contact disc e', Figs. 1 and 2, which can be frictionally engaged with a spindle f for rotation by a spring e<1> extending between a fibre washer e<3> on the disc and an adjustable nut e<2> on the spindle f. The spindle f is rotated in definite time relation to the negative feeding means from a shaft h<4> through bevel gear h<2>, h<3>, worm drive h, h<1>, shaft h<5>, and bevel gear g, g<1>. Each shaft h<5> drives five contact devices. Each disc e<4> has a contact i<1> which engages in turn four contacts j on a back plate j' which are connected by conductors d, c. Fig. 3. to their respective switch devices B, B<1>, B<2>, B<3>, for the different lamps for the four positives. A pivoted detent k engages, under action of a spring k<1>, a catch k<3> on the disc e<4> and prevents rotation until the other end l of the detent is attracted by the energizing of a magnet coil m. which is effected for a light intensity, say 3, by the contact on the negative film closing the circuit through the appropriate gate contacts, the battery m<3>, and the magnet coil m of contact device 3. The disc e<4> of the contact device 3 then rotates, breaking the magnet circuit, and its contact i<1> engages with the four segments j in turn, and operates the switches 3 of the four switch devices B - - B<3> to illuminate the lamps of the required intensity for the four positives at the correct interrvals. The detent k may be adjusted by a screw k<4>, Fig. 1. At the end of a rotation the detent k again engages the catch k<3> and the lamps remain on until another film contact sets another disc e<4> in motion, bringing into operation a different light intensity, but allowing completion of the printing of the four positives with the previous light intensity, even when the first disc is still in motion.
Patent GB-1523442-A (GB)
Title: Cationic azo quinoline dyestuffs
IPC: C09B44/10
Filed: 1975-01-23
Abstract: 1523442 Cationic azo quinoline dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 5 Jan 1976 [23 Jan 1975] 2990/75 Heading C4P Azo dyestuffs devoid of carboxylic and sulphonic acid groups have the formula wherein A<SP>(+)</SP> is a positively-charged aromatic or heterocyclic group, X<SP>(-)</SP> is an anion; R is H, or an optionally substituted alkyl, aryl, aralkyl or cycloalkyl group, R 1  is H, cycloalkyl or an optionallysubstituted alkyl or aralkyl group and the quinoline group may be further substituted. The dyes may be prepared by quaternization of the azo dye, or by diazotizing and coupling an already quaternized amine with the quinoline. The dyes are used for the coloration of polymeric textile materials such as acid-modified polyesters and polyamides, polymers and copolymers of dicyanoethylene and in particular polymers and copolymers of acrylonitrile.
Patent GB-485217-A (GB)
Title: Improvements in or relating to devices for driving posts, stakes and the like into the ground
IPC: E04H17/26
Filed: 1937-02-02
Abstract: 485,217. Driving piles, stakes, and the like ; boring earth. BRICE, E. L., and BRICE, A. Feb. 2, 1937, Nos. 2998 and 2999. [Classes 68 (ii) and 85] Stakes and posts are driven into the ground by repeated blows from a manually-operated heavy tubular or like member 1 closed at the top 2 and guided on the stake, the member being raised and lowered by handles 3 extending lengthwise of the member and connected rigidly thereto by arms 4, 5. Downward extensions may be connected to the arms 3. Packing or filling pieces 7 may be secured inside the tube 1 to guide it on the port. The tube may be replaced by angle irons 8, Fig. 10, rigidly connected, or by bars. When the post has been driven some way in, the driving member works on an extension formed as a bar with a socket to accommodate the top of the post. The apparatus may be used in connection with a tubular earth boring tool 12, Fig. 15, with apertures 16 to facilitate the discharge of material. The tool is driven by means of the upward extension 15.
Patent GB-233406-A (GB)
Title: Improvements in disc talking machines
IPC: G11B19/265
Filed: 1924-02-05
Abstract: 233,406. Gramophone Co., Ltd., and Buckle, H. L. T. Feb. 5, 1924. Speed, regulating.- Relates to gramophones of the kind in which the angular velocity of the turntable may be gradually varied during the sound - reproduction, and consists in improved means whereby such a " variable speed " machine may be readily converted at will into a " constant speed " machine (i.e. one of ordinary type) or vice versa. The friction pad 25 of the governor, which may be constructed as - described in Specification 216,571, is carried by a movable arm 26, the position of which is - determined either by variable-speed mechanism comprising a bell-crank lever 48, 45, itself controlled by a cam 36 moving with the tone-arm, or by constant-speed mechanism comprising an arm 80 which bears an adjustable stop 82. The arm 80 is pivoted at 77, and is integral with a member 52 on which the bellcrank lever 48, 45 is pivoted. A link 85 connects the lever 52 to a cranked lever 89 having an operating handle 90. When the handle is in - the position shown in Fig. 1, the mechanism is set for " variable, speed " operation, the arm 26 being held, against the action of a spring 66, by the member 48, the straight edge 49 of which engages a roller 57 on the arm 26. A roller 46 on the member 45 bears against the cam 36 which turns with the tone-arm and is so shaped that the part 48, and consequently the pad-carrying - arm 26, gradually move and allow the speed of the machine to increase as the tone-arm travels towards the centre of the turntable. The rate of increase of speed, determined by.the cam 36, may be either constant or variable. By swinging the handle 90 through about 180‹, the parts are moved to the position shown in Fig. 3, for " constant speed " operation. With this setting, the free end of the arm 80 is moved forward, so that the stop 82 forms an abutment for the lever 48, the pivot 50 of which is shifted so that the roller 46 is out of engagement with the cam 36. An arm 93, adjustably mounted on the base-plate 27, prevents excessive movement of the arm 26 away from the governor disc whilst the controlling- members 80, 48 are being moved. The arm 26 is pivoted at 59 upon a lever 67, 68, of which the arm 68 carries a pointer and a handle 69. Operation of the handle 69 allows an adjustment of the arm 26 to be made by drawing the roller 57 along the edge of the member 48. By this means, for variable-speed working, the range of speeds of the governor can be adjusted, or for constantspeed operation the required speed can be determined.
Patent GB-304041-A (GB)
Title: Improvements in slitting and cutting machines
IPC: B26D1/38
Filed: 1928-01-31
Abstract: 304,041. Marks, E. C. R., (Cameron Machine Co.). Jan. 31, 1928. Stationary-cutter machines; rotary-blade machines.-In a machine for cutting a web into sheets, slitting discs 2 co-operate wth a driven backing roll 1 and the strips pass over. a frictionroll 6, engaging the backing roll, to a transverse cutter 4 co-operating with a blade 5. The sheets are taken away by a conveyer 38. The backing roll 1 and the cutter 4 are geared through an adjustable cone drive.
Patent GB-875721-A (GB)
Title: Louvre register for exterior walls
Inventor: HAEGER CARL-OSCAR
IPC: E06B7/082
Filed: 1960-01-28
Abstract: 875,721. Ventilators. SVENSKA FLAKTFABRIKEN A.B. Jan. 28, 1960, No. 3100/60. Class 137. A louvre register comprises a frame 1 and one or more units disposed in the frame each unit consisting of two side members 4 between which extend metal sheet louvres 3 having tabs 5 which fit into grooves 4a in the side members (Fig. 3) to be held thereby when the grooves are constricted. The tabs may be enlarged as at 51 (Fig. 1) so that they constitute distance pieces between the louvres.
Patent GB-542898-A (GB)
Title: Electromagnetic coils
IPC: H01F17/08
Filed: 1941-03-07
Abstract: 542,898. Inductances. STANDARD TELEPHONES & CABLES, Ltd. March 7, 1941, No. 3107. Convention date, March 13, 1940. [Class 38 (ii)] ]  A core for a toroidal coil structure is made by spirally winding magnetic strip material such as " Permalloy " 10, annealing to restore magnetic properties damaged by cold working, cutting through the convolutions to form an air gap 19, and relatively displacing the convolutions as indicated in Fig. 4 to adjust the effective width of the air gap. The core is secured by being pressed into annular recesses in a pair of insulating rings 21, 22 which carry spacing elements 23, 24 between which winding elements 30, 50 are arranged. Terminals 25, 26 are mounted on the elements 23, 24 which together with the rings 21, 22 may be moulded from material such as artificial resin, caesin plastic, cellulose plastic, glass, ceramics, wood or paper pulp.
Patent GB-237320-A (GB)
Title: Improvements in or relating to materials for covering walls and for like purposes
IPC: C04B41/48
Filed: 1924-02-06
Abstract: 237,320. Lefebure, V. Feb. 6, 1924. Coating processes.-A process of making material for covering walls and like surfaces consists in applying a plastic mass composed of a synthetic resin or other plastic substance which is rendered hard and infusible by heat treatment, filling materials, and optionally colouring-materials to a backing layer of asbestos-cement or like material, and applying heat with or without pressure to harden the composition. The surface may be grained or otherwise ornamented by known methods. A liquid wash of synthetic resin, with or without fillers, may be applied to the backing before the plastic mass is superimposed thereon. A suitable synthetic resin composition consists of 6 lb. of synthetic resin, 4 lb. of woodmeal, 2 ¢ lb. of calcium sulphate, and 1¢ lb. of chrome green pigment.
Patent GB-668940-A (GB)
Title: Collapsible container for semi-liquids or the like
IPC: B65D47/12
Filed: 1950-02-07
Abstract: 668,940. Collapsable tubes. SQUEEZEASY DISPENSER & CONTAINER CO. Feb. 7, 1950. [Aug. 25, 1949] No. 3146/50. Class 66. A collapsable tube for semi-liquids &c. is of tapered form with a flat bottom 11, and a threaded neck 12, counter-bored to receive a tip 15 with a convergent outlet 16. A screw cap may contain a cork insert to contact the tip 15. The tube is e.g. of polyethylene, and may be refilled by compressing, inserting the tip into a semiliquid and releasing the pressure.
Patent GB-396394-A (GB)
Title: Improvements in and relating to tipping bodies for motor vehicles
IPC: B60P1/16
Filed: 1933-02-02
Abstract: 396,394. Tipping-vehicles. KUTSUKIAN, F., 171, Rue d'Aguesseau, Boulogne-sur- Seine, France. Feb. 2, 1933, No. 3186. Convention date, Feb. 2, 1932. [Class 108 (i).] In end and side tipping vehicles operated by fluid-pressure cylinders a stationary horizontal cylinder is mounted on the ehassis and a connecting-rod connects the ram thereof to a lever pivoted on a transverse shaft, a second lever being connected to the body and to the first lever by universal joints and removable swivel pins being provided at the sides and rear of the vehicle. The link 12 connecting the levers 5, 7, 8 of the tipping mechanism with the body 16 is provided with universal joints indicated by pins 13, 14 and 9, 11 arranged at right-angles so that the link 12 adapts itself normally to the movement of the body during tipping either to the rear or to one side. The tipping mechanism shown comprises an hydraulic ram 2, 3 and a bell-crank lever 5, 7, 8 pivoted to the frame at 6.
Patent GB-103718-A (GB)
Title: Improvements in and relating to Portable Cooking Apparatus.
Inventor: CROOKS JAMES KIRKE
IPC: F24B1/20
Filed: 1916-03-03
Abstract: 103,718. Crooks, J. K., (Foot, J. J.). March 3, 1916. Cooking-stoves. -A wheeled field kitchen is made with cooking-vessels which are detachable and after a preliminary heating are placed in heat-insulated vessels or chambers. Fig. 1 shows an apparatus consisting of two vehicles connected by a draw-bar 3 and drawn by means of a reversible draw-bar 1. The rear vehicle comprises a fire-place 9, a chamber 8 containing food vessels 10 heated by gases passing into it through a dampered aperture 12, an oven containing food drawers 18 heated by gases passing through apertures 17, and a water vessel 14. The food vessels 10 after a preliminary heating are transferred to the front vehicle 5 and are placed in insulated or vacuum-walled fireless cookers 20 with hermetic covers 22 secured by leaf springs 23 pivoted on the covers and engaging lugs 21. The vessels 10 are similarly sealed. The vehicle 5 is provided with fuel and food stores 28, 30, a tool-box 31, a folding table 32, 33 and a frying-pan 38. In a modification, Fig. 2, the two vehicles are combined into one, which is constructed with a grill 41 over the fire-place; steps 42 and seats 39 are provided, and the vehicle is fitted with draw-hooks 43, and with clips for carrying a lifting-bar 34 for the vessels 10, and for rifles 37.
Patent GB-672825-A (GB)
Title: Organo-silicon compounds and process for their manufacture
IPC: C07F7/18
Filed: 1950-02-08
Abstract: Organo silicon resins are obtained by the hydrolysis and condensation of compounds of the general formula R2YSICH2SiY2R, wherein each R is an alkyl or monocyclic aryl radical and each Y is a halogen atom or alkoxy radical.  The hydrolysis and condensation may be effected in the presence of other organo silicon halides, e.g. mono-, di- or tri-organo silicon halides.  From 5 to 50 mol. per cent of one or more of the compounds (CH3)2YSiCH2SiY2CH3, (CH3)2YSiCH2SiY3 and C6H5SiY3, at least 50 mol. per cent thereof being (CH3)2YSiCH2Si Y2CH3, and from 95 to 50 mol. per cent of CH3HSiY2, wherein each Y has the above significance, may be hydrolysed and condensed, or from 40 to 95 mol. per cent of (CH3)2YSiCH2Si Y2CH3 may be cohydrolysed and condensed with from 60 to 5 mol. per cent of C6H5SiY3, wherein Y has the above significance.  In the examples a mixture of the compounds CH3Cl2Si CH2SiClC6H5CH3, C6\H5CH3ClSiCH2SiCl2C6H5 and CH3Cl2SiCH2SiCl(C6H5)2 is hydrolysed with water to give a resin; (CH3)2ClSiCH2SiCl2CH3 and C6H5SiCl3 are hydrolysed with water in the presence of toluene, the organic layer shaken with sodium bicarbonate and concentrated to give a resin; a mixture of (CH3)2ClSiCH2Si Cl2CH3, (CH3)2ClSiCH2SiCl3 and C6H5SiCl3 are hydrolysed with water in the presence of toluene, n-butanol is then added, the organic layer shaken with sodium bicarbonate, and concentrated to a resin, the resulting resin is then heated and diluted with aromatic naphtha and toluene; a mixture of the compounds (CH3)2ClSiCH2SiCl2CH3, (CH3)2ClSiCH2SiCl3 find CH3HSiCl2 is hydrolysed with water and sodium bicarbonate in the presence of toluene to give a solution of a resin in toluene; (CH3)2ClSiCH2CiCl2CH3, (CH3)2ClSiCH2SiCl3, CH3HSiCl2 and C6H5SiCl3 are hydrolysed with water in the presence of toluene, methyl ethyl ketone is added, the reaction mixture neutralized with sodium bicarbonate and the resulting organic solution of a resin separated.ALSO:The invention comprises organo silicon compounds of the formula R2YSiCH2SiY2R, wherein each R is an alkyl or monocyclic aryl radical and each Y is an alkoxy or halogen atom, and a method of preparing these compounds by reacting a compound of the general formula RY2SiCH2SiY2R in the liquid phase with an alkyl or monocyclic aryl Grignard reagent, where R and Y have the above significance, the Grignard reagent being employed in a proportion of between 0.5 and 1.5 mols. per mol. of the silicon starting material.  The group R may be from methyl to octadecyl, phenyl or tolyl.  In the examples the following compounds are prepared:  <FORM:0672825/IV (b)/1> The organo silicon compounds may be reacted with organo lithium compounds. Specification 672,824 is referred to.