baber/WOPTO huggingface dataset:
Patent GB-510705-A (GB)
Title: Process for preparing nitrocellulose
IPC: C08B5/02
Filed: 1938-02-04
Abstract: 510,705. Nitro-cellulose. KODAK, Ltd. Feb. 4, 1938, No. 3480. Convention date, Feb. 4, 1937. [Class 2(ii)] Cellulose, having a cuprammonium viscosity of not more than 12 seconds, and not more than 7 per cent. of which is soluble in 7.14 per cent. caustic soda or 10 per cent. caustic potash, is nitrated with a nitrating bath containing 14-35 per cent. nitric acid, 66-47 per cent. sulphuric acid and a total combined content of nitric and sulphuric acids of 79-83 per cent., the sum of the equivalent percentages of these acids (which are determined by dividing the percentage of each acid by its equivalent weight) being 1.57 to 1.52. The method of determining the cuprammonium viscosity of the cellulose is indicated. The nitrocellulose obtained by the process is completely soluble in methyl alcohol, and sheeting made therefrom, for instance by coating out a solution thereof in methyl alcohol containing a little acetone, may be employed as a base for photographic film. Examples are given of the nitration of refined cotton linters, but refined wood pulp, particularly refined sulphite pulp, may also be used.
Patent GB-600456-A (GB)
Title: Separation of pyrites arsenopyrite and pyrrhotite by flotation
IPC: B03D1/06
Filed: 1944-02-25
Abstract: Pyrites is separated from arsenopyrite by subjecting a mixture of them to conditioning with sufficient alkali metal permanganate to depress the arsenopyrite and then subjecting the conditioned material to froth flotation in the presence of a promoter for pyrites so that a concentrate is obtained which is rich in pyrites and a tailing rich in arsenopyrite.  If the mixture also contains pyrrhotite, it is first conditioned by the addition of a small amount of permanganate sufficient to depress the pyrrhotite but not the arsenopyrite.  The conditioner material is then subjected to froth flotation in the presence of a sulphide promoter to obtain a concentrate rich in pyrites and arsenopyrite and a tailing containing most of the pyrrhotite.  The concentrate is then treated with an additional amount of permanganate sufficient to depress the arsenopyrite and is then subjected to froth flotation in the presence of a sulphide collector so that a concentrate rich in pyrites is obtained and a tailing containing the arsenopyrite.  In both processes the flotation takes place in the presence of a collector containing the dithiophosphoric acid radical, xanthates and mercaptobenzothiazole.
Patent GB-1427913-A (GB)
Title: Amine derivatives of 4-hydroxy-2,1,3-benzthiadiazole
IPC: C07D285/10
Filed: 1975-01-28
Abstract: 1427913 Benzthiadiazoles BOEHRINGER MANNHEIM GmbH 28 Jan 1975 [1 Feb 1974] 3595/75 Heading C2C 4 - (3 - Alkylamino - 2 - hydroxypropoxy). 2,1,3 - benzthiadiazoles and their salts are prepared by standard methods, e.g. by reacting 4 - oxiranylmethoxy - 2,1,3 - benzthiadiazole with the appropriate amine. The starting material is prepared from the parent phenol and epichlorohydrin. The above compounds inhibit adrenogenic #- receptors, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-114018-A (GB)
Title: Improvements in Bearings for Machines dealing with Liquid containing Abrasive Matter.
Inventor: JAMES REGINALD WILLIAM
IPC: F16J15/40
Filed: 1917-03-13
Abstract: 114,018. James, R. W., (Wardrop, J. G., and Stephen, C. C.). March 13, 1917. Grit, excluding. -To prevent abrasive material from entering the stuffing-boxes and shaft bearings of machines for cleaning scrap rubber and similar machines, clean water is supplied by a pipe k to a grooved perforated ring h placed between the neck ring b and the packing d of a stuffing-box. The water is at a higher pressure than that of the liquid in the machine and flows around the shaft through the ring b, into the casing of the machine, and thereby prevents the escape of liquid in the opposite direction.
Patent GB-496850-A (GB)
Title: Improvements in or relating to card indexes
IPC: B42F17/18
Filed: 1938-02-05
Abstract: 496,850. Card indexes. THIEME, A. M. Feb. 5, 1938, Nos. 3680, 3681, and 3682. Convention dates, Feb. 5, 1937, Feb. 20, 1937, and May 26, 1937. [Class 146 (i)] In a visible card index of the kind in which the cards 1 have projections 2 on one edge engaging slots 5 in a support or supports 4 arranged on a backing-member 8, the support or supports are flexible in a direction at rightangles to their plane so as to be capable of movement by an amount corresponding to the width of the projections and thus allow the cards to be tilted. In one form, Fig. 1, a support 4 in the form of a flexible strip is provided for each card, and guides 23 of transparent material fixed to the member 8 receive the ends of the supports. Ridges 7 on the supports 4 prevent one support from sliding over adjacent supports. Each projection 2 has side extensions 3a, 3b spaced from the card proper a distance equal to the thickness of a support, and the extension 3a is engaged with and slid over a tapered end 5b of the slot to allow the extension 3b to be inserted beneath the other end 5a of the slot. A strip 6 pivoted at one end 6a prevents inadvertent removal of the cards. In another form, Fig. 4, a single flexible support 10 pivoted about one edge 10a to a backing- member 11 is provided to hold a number of cards 1, a corresponding number of slots 9 being provided in the support. In a further modification, the cards 1 when lying flat engage a side guide 28a, Fig. 14, of celluloid, which prevents sidewise movement of the cards, but a cut-away corner 27 allows of this movement when the card is raised to a perpendicular position, so that the card can be released. The card indexes may be mounted in folding covers which may have hook-shaped catches adjacent to the fold for suspending the covers. Each card may have two projections and the support formed with two slots to receive them. Where each card has a separate support, the backing-member may be provided with a recess to receive the supports. Slits may be provided on each card 1 to receive tongues on an additional card.
Patent GB-495744-A (GB)
Title: Improvements in wrapping machines
IPC: B65B41/14
Filed: 1938-02-07
Abstract: 495,744. Wrapping-machines. SAPAL SOC. ANON. DES PLIEUSES AUTOMATIQUES. Feb. 7, 1938, No. 3752. Convention date, Feb. 18, 1937. [Class 94 (i)] In the wrapping of rectangular articles in wrappers, the longitudinal axes of which are angularly displaced, the web of wrapping material is fed towards the article in a direction corresponding to the desired oblique position of the sheet and the wrapper cut off and transported to the wrapping point without change of angle. The web 3, Fig. 1, of foil &c. is drawn from a reel 2 by grippers 4 over a table 5. When the required amount has been drawn off, a clamping rail 13 is lowered and shears 8, 9 sever a wrapper 31 from the web. The grippers then move to the position shown in broken lines, the axis b of the wrapper subtending an angle a relatively to the axis c of the article. The articles 14 are fed by a conveyer 15 over a table 16 and are pushed laterally into position on to a plunger beneath the wrapper. The plunger rises, folders 23, 26 turning down the edges of the wrapper. The folders 26 advance and support the article when the plunger is withdrawn, at the same time turning up two flaps on to the bottom of the article. A folder 27 advances and turns up a third flap as the folders 26 recede, and the fourth flap is turned up by the edge of the table 25 over which the article is next thrust, to position 14<11> by a plunger. In a modification, Fig. 6, a label is applied to the article with the foil wrapper. The grippers 4 draw off and convey the wrapper 3<1> beneath a magazine 30 containing the labels, and disposed in parallelism with the articles. The wrapper and sheet are drawn together by a gripper 32 to a position above the article and applied together.
Patent GB-702867-A (GB)
Title: Improvements in and relating to titanium pigments
Inventor: WILLCOX OSWIN BURR
IPC: C09C1/36
Filed: 1952-02-13
Abstract: A process for improving a titanium pigment comprises dry grinding the pigment in the presence of 0.05 to 5 per cent., based on the weight of the pigment, of an aerogel.  The preferred aerogel is silica or alumina, but may be an oxide of titanium, zirconium, magnesium, zinc, cadmium, tin, lead, antimony or bismuth.  The aerogel, preferably in an amount between 0.1 per cent. and 2 per cent. may be mixed with the pigment and ground in a fluid energy mill or micronizer, as described in U.S.A. Specification 2,032,827.  The pigment is preferably one comprising titanium dioxide, anatase or rutile, which may contain calcium carbonate or sulphate, barium sulphate or siliceous material, but may be other forms of titanium pigment, including titanates. Specification 432,191, [Group II], and U.S.A. p  Specifications 2,046,054; 2,187,050; 2,488,439 and 2,488,440 also are referred to.
Patent GB-433182-A (GB)
Title: Improvements in printers' composing sticks
IPC: B41B1/26
Filed: 1935-02-06
Abstract: 433,182. Printers' composing-appliances. ASPINALL, D. A., 17, Church Street, Twickenham, Middlesex. Feb. 6, 1935, No. 3852. [Class 100 (iii)] Composing-sticks.-In a composing-stick, which may be made from metal pressings, the adjustable slide 5 is held in position by a clamp 9, which is provided with a clamping-screw 13, and bears against and supports the type wall 7 of the slide. The clamp is of springy metal and embraces the base 3 and back 1 of the stick, and has a front limb 11 bearing on the body of the slide. The screw 13 passes through the limb 11, and takes a bearing in the angle between the body 5 and the bottom flange 6 of the slider.
Patent GB-507095-A (GB)
Title: Improvements in stair carpet retainers
IPC: A47G27/06
Filed: 1938-02-08
Abstract: 507,095. Staircarpet fasteners. WHEELDON, G., and HUNTER & HYLAND, Ltd. Feb. 8, 1938, No. 3868. [Class 52 (v)] A stair-carpet retaining arm 9 is hinged to an operating link 10 pivoted to an attachment bracket 1 so that pressing the link downwards causes a latch projection 13 on the arm to pass under the web 1 of the bracket through a slot 5. Specification 373,368 is referred to.
Patent GB-657215-A (GB)
Title: Device for controlling bulls and the like
IPC: A01K15/00
Filed: 1949-02-11
Abstract: 657,215. Controlling animals. THEUNISSEN, J. Feb. 11, 1949, No. 3876. Convention date, Nov. 5, 1948. [Class 62] A head harness for a bull comprises a neck strap 3, a brow strap 4 and a nose strap 5 each provided with pointed studs 6 which induce pain when the animal thrusts with its head. The studs are normally retracted behind perforated and spring loaded plates 7, 9, which are freely supported by guide pins 11. On the nose strap, the pointed studs are only provided on the upper portion, the lower end of the strap being secured to a nose ring by a loop 13. The neck and brow straps are secured to two horn stirrups 1, 2 and the harness is supported in use by riders 16 which rest loosely on the horn roots of the bull. Side extensions 15 projecting in front of the horns are positioned at the level of the brow band.
Patent GB-926320-A (GB)
Title: A controlling device for a stranding machine for controlling the speed at which a cable is drawn through a cabling die
IPC: H01B13/02
Filed: 1961-02-01
Abstract: 926,320. Unwinding spools; braking spools. GEOFFROY-DELORE S. A. Feb. 1, 1961 [Feb. 1, 1960], No. 3891/61. Drawings to Specification. Class 120 (2). [Also in Groups XXV and XXXV] The subject-matter of this Specification is identical with that described in Specification 926,319 but the claims are concerned with the means for controlling the speed of the machine such that the pitch is maintained at a predetermined multiple of the diameter of the finished cable.
Patent GB-1189805-A (GB)
Title: Braking Apparatus for a Load Lifting Device.
IPC: B66B5/04
Filed: 1969-01-23
Abstract: 1,189,805. Brakes for load-lifting devices. DEMAG-ZUG G.m.b.H. 23 Jan., 1969 [14 June, 1968], No. 3897/69. Heading B8L. A brake for a lifting device which moves up and down a column 1 has spring-loaded cams 8 which are moved into engagement with a surface 1a of the column 1 when a wedging roller 17 is pulled up a wedge-shaped surface 14 by a centrifugally operated coupling 6 and a strap 16. The coupling runs on the surface la and is pressed against the surface la by a spring 7. An abutment 15 limits the wedging action so that the braking effect can be pre-set by adjusting nuts 13 which control the force which compression springs 9 exert on the cams 8.
Patent GB-476210-A (GB)
Title: Portable solid fuel fireplace
IPC: F24B1/193
Filed: 1937-02-10
Abstract: 476,210. Portable domestic fire - container. JONES, J. L., and JONES, J. R. Feb. 10, 1937, No. 3916. [Class 126] A portable domestic fire-container, which comprises a box which during transport completely encloses the fire, has a removable cover and a back section slidably mounted in slots F and detachable to leave a rear opening S. The cover, shown in Fig. 2, fits in slots A at the top of the main part of the box, Fig. 1. The projecting ends M of the handle K of the cover pass over the hooks N on the box, by virtue of the movement allowed by the slots L through which the handle passes. When the handle K is raised, the ends M engage under the hooks N. The plate sliding in the slots F has a hooked part at the top to engage over a projection I on the cover and so hold the latter in position. A grate is supported by lugs O at the rear and by its own feet resting on L- shaped lugs P at the front. R is a strengthening stay. The slots A may be replaced by a flange with apertures for the reception of projections on the top of the cover. The grate may be dispensed with.
Patent GB-885066-A (GB)
Title: Improvements in or relating to planetary gearings
IPC: F16H1/28
Filed: 1959-02-04
Abstract: 885,066. Toothed gearing. MAAG GEAR WHEEL & MACHINE CO. Ltd. Feb. 4, 1959 [Feb. 4, 1958], No. 4008/59. Class 80 (1). In epicyclic gearing comprising a driving sun 5, reaction annulus 7 and driven carrier 9 supporting say three planet wheels 13, the sun and annulus are resiliently supported by thinwalled cylindrical portions 18, 16 respectively to allow radial movement ensuring uniform distribution of load between the planet wheels. The driving shaft 4 is supported by a single bearing 2 adjacent the centre of gravity of the combination of shaft 4, gear 5 and coupling 21. In a non-epicyclic modification the carrier 9 is fixed and the annulus 7 is resiliently coupled to the output shaft by a thin-walled cylinder.
Patent GB-115061-A (GB)
Title: Improvements in Collapsible and Adjustable Booths, Sheds or Workshops.
IPC: E04H1/12
Filed: 1917-03-22
Abstract: 115,061. Marks, E. C. R., (Devilbiss Manufacturing Co.). March 22, 1917. Workshops; sheds; portable buildings; sheet-metal structures. -A collapsible booth, shed, or workshop is composed of any required number of semi- #-shaped sections A, Fig. 1, bolted together end standing on an existing floor, the top ends of the sections being connected directly or to intermediate sections C. The rear end B is funnel-shaped with fans c and outlets b, and the front may be left open or be closed in any suitable manner. Each section A comprises a panel 1 and a window 2, and has angle-irons 3 which project at the top in staggered relation, as shown in Fig. 6. When roof-sections are used, the front bars 3 are connected by a bar 7, Fig. 11. The roof sections C comprise window sections 9 alternating with sheet-metal panels 10, the number used depending on the width desired. The ends of the panels 10 are provided with angle. bars 3a which fit between the op. posing ends of the bars 3 of the side panels and are connected to the tie-bar 7. The longitudinal edges of the panels 10 and body panels 1 are folded into #-shape with an upstanding tongue 12 and flange 11. The window sections 9 rest on the flanges 11 and are retained by flanged #-shaped strips 13. The top is fitted with lamp housings or reflectors 16.
Patent GB-242492-A (GB)
Title: Improvements in or relating to the generation of steam for internal combustion engines
IPC: F02M1/00
Filed: 1925-02-16
Abstract: 242,492. Pickard, W. Feb. 16, 1925. Coiled and sinuous tube superheaters.-Steam is superheated in a spiral passage p formed about a hollow member f wherein steam is generated. The apparatus is located within the exhaust manifold of an internal-combustion engine.
Patent GB-181055-A (GB)
Title: Improvements in discharging devices for electric furnaces
IPC: F27D3/18
Filed: 1921-02-04
Abstract: 181,055. Thorssell, C. T., and Friis, E. C. Feb. 4, 1921. Furnace details, - In an electric furnace in which the firebars of the grate move or rotate to discharge the heated material, these bars are so arranged in relation to the electrodes, or the grate is so constructed that the electric conductivity between the ends of the grate nearest the electrodes is substantially eliminated in order to prevent the current from passing through the grate instead of through the material to be heated. In cne arrangement the fire-bars are arranged parallel to one another and perpendicular to a vertical plane through the electrodes. Rotary grate bars 1 mounted in bearings carried by a metal or non-conducting frame 2 are insulated from the frame, which may be of stone or cement, by insulating washers 3, 6.
Patent GB-1248591-A (GB)
Title: Improved container sealing roof structure
Inventor: HAMILTON WILLIAM
IPC: F17C3/00
Filed: 1968-01-26
Abstract: 1,248,591. Liquefied gas storage containers. W. HAMILTON. 21 Jan., 1969 [26 Jan., 1968], No. 4299/68. Heading F4P. The upper open end of a container suitable for storing cold liquefied gas e.g. methane is closed by a tray-like member 11, 12, Fig. 2, containing water ice which forms a barrier layer between the interior of the container and an outer domed cover 18. The container shown is of the inground instruction and the tray which is formed by a platform 8 of aluminum is provided with sand-filled corrugations 14 covered by sheets of bitumen impregnated material having upturned peripheral edges 11 and is supported on lateral beams 14A suspended by rods 16 from outer cover beams 17 and resting on a peripheral beam 15 which is also suspended from the outer cover beams 17. The periphery of the tray is sealed from the outer cover by an inverted U- shaped steel band 24 having one leg 28 Fig. 5 embedded in the ice and the other leg embedded in a frozen sand-filled trench 26 in the ground 2. An outer steel band 29 has its lower edge embedded in trench 26 and has an out-turned flange 30 welded to a steel ring beam 19; the space between bands 24, 29 being filled with heat insulating material 32 which also extends above the ice layer 13. The ends of beams 17 and the periphery of the cover 18 are welded to the beam 19 and the space 31 between the cover 18 and the ice barrier 13 is filled with nitrogen. Fig. 6 shows an above ground container having an outer concrete wall 38, a heat insulating layer 32 and a sheet metal lining 37 the upper end of which is turned inwardly and downwardly and is embedded in the ice barrier.
Patent GB-200113-A (GB)
Title: Improvements in catalogues or specimen books
IPC: B41F13/54
Filed: 1921-02-08
Abstract: 200,113. Moses, N. P. Feb. 8, 1921. Rotary machines.-A machine for printing simultaneously a miniature representation of a wall-paper frieze and filling comprises a drum 10 over which passes a web 11 to which the ink is conveyed by rolls 17, of which one only is shown. The ink is brought to the roll 17 from a tank 12 through the medium of rolis 13, 14 and a web 15. The rolls 13, 17 are divided into fields having differently coloured inks for producing the frieze and filling, the roll 13 having a groove which receives a partition 22 separating the tank 12 into compartments.
Patent GB-580564-A (GB)
Title: Improvements relating to optical instruments
IPC: G02B7/18
Filed: 1944-03-09
Abstract: 580,564. Prism mountings. AVIMO, Ltd., and STEVENS, H. C. M. March 9, 1944, No. 4447. [Class 97 (i)] A prism mounting comprises a bracket adapted to be rotatably mounted in a housing and to carry the prisms in contact with one of its side faces, and clamping pieces attached to the bracket for holding the prisms in position, the whole forming an independent unit. As shown, the bracket has a base a above a spigot d which enters a socket in the housing e and also has a vertical portion b having a flat face on one side and a hollow boss c on the other to accommodate a field lens. The prism g is held in position by four clamping pieces k, k<1>, k<2>, k<3>, which are secured to the portion b and to each other by screws m and n. The upper end of the bracket is secured in the housing by a screw w which passes through a spider t fixed to the housing by screws u and final angular adjustments may be made by screws engaging a pin s mounted eccentrically to the spigot d. Soft metal pads are inserted between the prism and the metallic faces to avoid fracture. The main adjustments may be made before the mounting is fitted into the housing.
Patent GB-1503324-A (GB)
Title: Digital data processors and methods of operating such processors
IPC: G06F12/02
Filed: 1975-01-27
Abstract: 1503324 Data processing BURROUGHS CORP 27 Jan 1975 [28 Feb 1974 13 Sept 1974] 4505/75 Divided out of 1503321 Heading G4A The subject-matter of this Specification is substantially the same as that described in parent Specification but the claims are concerned with error checking apparatus which counts the relative numbers of left and right brackets in each received data file, unequal numbers of left and right brackets in a received data file indicating an error.
Patent GB-1249286-A (GB)
Title: Anglers bite indicator
Inventor: STREET JAMES LESLIE
IPC: A01K97/12
Filed: 1970-01-30
Abstract: 1,249,286. Bite indicator. J. L. STREET. 15 Sept., 1970 [30 Jan., 1970], No. 4509/70. Heading A1A. A bite indicator comprises a container in which is located a battery, a light bulb and a make-and-break contact, the container being removably attached to a fishing rod by a clip which is taped to the rod.
Patent GB-1201213-A (GB)
Title: Improvements in vacuum pumps
IPC: F04F9/00
Filed: 1968-01-30
Abstract: 1,201,213. Diffusion pumps. BENDIX CORP. Jan.30, 1968 [Nov.30, 1967], No.4601/68. Heading F1E. In an oil diffusion pump comprising a boiler 14 and a multi-stage nozzle assembly 27-30 in a cooled casing 12, oleophobic material having a contact angle with the pump oil of 35 degrees or greater, e.g. P.T.F.E., polychloralethylene, or a copolymer of tetrafluoroethylene and hexafluoropropylene, is applied as a coating to the cowl 34 of the first stage nozzle assembly and to the casing wall 42 above the contact area of the oil vapour jet 32, the oleophobic material preventing backstreaming by preventing oil from weeping over the coated surfaces. Alternatively, a baffle cap 56, Fig. 5, coated with or made of oleophobic material, may be mounted on top of cowl 34. The coating may extend over the exterior of the baffle cap or the cowl, and also partly over the interior, as shown, or may extend only along the edge of the skirt. The baffle cap may be formed with a thickened lower edge and a lip, Figs. 6 and 7 (not shown) to prevent oil drops from being optically exposed to the pump inlet 18.
Patent GB-229687-A (GB)
IPC: D04C3/00
Filed: 1925-02-19
Abstract: 229,687. Tober, C. Feb. 20, 1924, [Convention date]. Braiding-machines. - The inner bobbins are continuously driven by a system of rollers 30 round a gapped track 41 on which the sliding bobbin carriers 37 are mounted. Rollers 23 pivoted directly to the carriers 37 or mounted on spring links pivoted thereto run on a track 33 forming, with the track 41 and a brake drum 21, part of a rotary casing 7 supporting the outer bobbins 18. The arrangement is such that the axles of the rollers 30 are above the track 33. Buffer rollers 150 come into action when the machine is suddenly pulled up or reversed. Each pair of rollers 30, 150 may be replaced by a single larger roller. The outer threads are given the necessary displacement by being threaded through eyes in levers carrying rollers 3 which run on a fixed cam.