baber/WOPTO huggingface dataset:
Patent GB-893854-A (GB)
Title: Process of stabilising cellulose triacetate
Inventor: FROMMELT HORST
IPC: D06M13/51
Filed: 1958-07-08
Abstract: Organic tin compounds of the general formula <FORM:0893854/IV (a)/1> in which R1 and R2 are the same or different aryl radicals, R3 and R4 are either the same as R1 and/or R2 or are the same or different radicals of monobasic organic acids or together signify the radical of a dibasic organic acid, or R3=R1 and/or R2 and R4=Sn(R1R2R3), are used to improve the stability of cellulose triacetate to heat and/or light.  Specified organic tin compounds are diphenyl tin diacetate, diphenyl tin thiodipropianate, tin tetraphenyl and hexaphenyl distannane.  The stabilizers may be added to the cellulose triacetate in an amount from 0,5 to 2% by weight for working up into films or injection-moulding compositions.  Plasticizers may also be incorporated into the compositions.
Patent GB-949050-A (GB)
Title: Improvements in and relating to silver salt solutions
IPC: C10K1/10
Filed: 1960-06-22
Abstract: A silver salt solution is stabilized towards reducing agents by the addition of hydrogen peroxide or a compound which forms hydrogen peroxide in solution so that metallic silver is not precipitated by the action of a reducing agent. The solution may be used to absorb an olefine from a gaseous mixture which includes a reducing gas, the olefine being recovered from the silver salt solution by reduction of pressure. In examples aqueous solutions of silver fluoborate and silver nitrate are stabilized by addition of hydrogen peroxide and ethylene and propylene are separated from gas mixtures containing hydrogen and carbon monoxide. Compounds mentioned that form hydrogen peroxide in solution are isopropyl hydroperoxide, performic acid and peracetic acid. The silver salt may be dissolved in a glycol, acetonitrile or benzonitrile as well as in water.ALSO:A silver salt solution used to absorb olefins is stabilized towards reducing agents by the addition of hydrogen peroxide or a compound which forms hydrogen peroxide in solution so that metallic silver is not precipitated by the action of a reducing agent.  The solution may be used to absorb an olefine from a gaseous mixture which includes a reducing gas, the olefine being recovered from the silver salt solution by reduction of pressure. In examples, aqueous solutions of silver fluoborate and silver nitrate are stabilized by addition of hydrogen peroxide and ethylene and propylene are separated from gas mixtures containing hydrogen and carbon monoxide.  Compounds mentioned that form hydrogen peroxide in solution are isopropyl hydroperoxide, performic acid and peracetic acid.  The silver salt may be dissolved in a glycol, acetonitrile or benzonitrile as well as in water.ALSO:A silver salt solution stabilized towards reducing agents by the addition of hydrogen peroxide or a compound which forms hydrogen peroxide in solution, so that metallic silver is not precipitated by the action of a reducing agent, is used to absorb an olefine from a gaseous mixture which includes a reducing agent. The olfine is recovered from the solution by reduction of pressure.  In examples hydrogen peroxide is added to aqueous solutions of silver fluoborate and silver nitrate, and ethylene and propylene are separated from gas mixtures containing hydrogen and carbon monoxide. Compounds mentioned that form hydrogen peroxide are isopropyl hydroperoxide, performic acid and peracetic acid.  The silver salt may be in a glycol, acetonitrile or benzonitrile as well as in water.
Patent GB-534651-A (GB)
Title: Vibrator
IPC: G07F17/00
Filed: 1939-07-28
Abstract: 534,651. Therapeutic vibrator. EXHIBIT SUPPLY CO. July 28, 1939, No. 22018. Convention date, July 3. [Class 81 (ii)] A vibrator comprises a motor 20, the shaft of which carries an eccentrically mounted weight 23, and a platform 11 on which the motor is mounted, supported at one end by springs 30 and at the end remote from the motor by an attachment 16, 19 permitting vibrational movement.
Patent GB-758338-A (GB)
Title: Improvements in or relating to sustaining rotors for helicopters
IPC: B64C27/54
Filed: 1951-09-19
Abstract: 758,338. Controlling rotary wing aircraft. PERCIVAL AIRCRAFT, Ltd., FRISE, L. G., TUSTANOWSKI, J., WOTTON, J., and LESNIAK, M. J. Dec. 18, 1952 [Sept. 19, 1951], No. 22020/51. Drawings to Specification. Class 4. In a helicopter rotor having an aileron as each blade, the aileron is divided into sections along its length, each of which is moved by differing amounts so that the lift coefficient may be reduced at the tip in relation to the remainder of the blade.
Patent GB-1472337-A (GB)
Title: Copying apparatus
IPC: G03G15/22
Filed: 1975-05-22
Abstract: 1472337 Photo-copying G RITZERFELD 22 May 1975 [14 July 1974 13 Feb 1975]  22035/75 Heading G2A Electro-photostatic copying apparatus comprises (a) a transparent platen which supports slitshaped masking means and (b) means for stepwise displacing an original over the masking means. Discrete single- or multi-line portions of the original are copied in successive copying operations on to separate copy sheets. The masking means may bear an image to be repeatedly copied. It may comprise a single member or two members, one of which is stepwise displaceable to vary the width of the slit. The masking means and original, which may be contained in respective transparent plastic sleeves, may be held in respective clamping means at the edge of the platen. The respective clamping means may be parallel or perpendicular. The displacing means for the original may comprise a stepping motor or an electromagnetic stepping drive. The number of steps per copying operation may be determined by the use of a key board. The displacing means may be actuated by a time switching device or by a cyclically moving component. A photo-conductive drum may be employed together with (a) a curved platen and a rotary mirror or (b) a flat platen and reciprocatory mirrors.
Patent GB-941788-A (GB)
Title: Improvements in brushing attachments for lawn mowing machines
IPC: A01D43/02
Filed: 1961-06-19
Abstract: 941,788. Lawn-mowers. W. RENTON. May 31, 1962 [June 19, 1961], No. 22051/61. Heading A1F. A brushing attachment for a lawn mower comprises a cylindrical brush b mounted on a spindle c supported in bearings d attached to a framework e by fulcrum pins f. A tension spring p is fastened to each bearing and is hooked on to the mower to bring drive wheels g carried by the spindle c into driving engagement with the mower. The height of the brush is adjusted by means of a track wheel l attached to the framework.
Patent GB-1525182-A (GB)
Title: Electrical contact for liquid phase epitaxy
IPC: H01L33/00
Filed: 1976-05-27
Abstract: 1525182 Liquid phase epitaxy NORTH AMERICAN PHILIPS CORP 27 May 1976 [30 May 1975] 22058/76 Heading B1S In liquid-phase epitaxial deposition from a solution 18 on to a substrate wafer 19 which is a Ga-centaining Group III-V compound, electric current is passed across the liquid-solid interface via an intermediate layer 21 which is below the substrate and which is liquid Ga containing at least 0.5% Al. Current passes between steel electrodes 10, 11 embedded in graphite blocks 12. 13 and through graphite plug 24 and graphite pedestal 22. In operation slids 14 of insulating material e.g. BN is moved to align hole 20 with substrate 19 to allow contact with solution 18 and to allow current to pass. The substrate may be GaAs, GaP, GaAsP, Ga 1-x  Al x , As or Ga 1-x  Al x P, and may be doped with Si.
Patent GB-1148764-A (GB)
Title: Production of synthetic polymer coatings on metallic surfaces by electrodeposition
Inventor: WILHELM HANS
IPC: C09D133/06
Filed: 1966-05-18
Abstract: 1,148,764. Electrochemical coating compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 18 May, 1966 [19 May, 1965], No. 22062/66. Headings C3P and C3R. [Also in Division C7] The following compositions are exemplified for coating on metal surfaces by electrodeposition: (A) an aqueous composition containing xylene, butanol, a melamine-formaldehyde condensate etherified with butanol, and a copolymer of 2-ethyl-hexyl acrylate, N,N-dimethyl-N-(#-hydroxyethyl)- amine salt of acrylic acid, N-butoxymethyl-methacrylamide, 4- hydroxybutyl acrylate and styrene. (B) an aqueous composition containing xylene, a copolymer of 2-ethylhexyl acrylate, N,N-dimethyl-N-(#-hydroxyethyl)-amine salt of acrylic acid, 4-hydroxybutyl acrylate, ethyl acrylate and styrene, and a copolymer of N - butoxymethyl - methacrylamide, acrylic acid, 4-hydroxybutyl acrylate, styrene and 2-ethylhexyl acrylate. Coatings obtained from the compositions are stoved by heating at 130-150‹ C.
Patent GB-289312-A (GB)
Title: Improvements in and relating to cigar-and cigarette-cases, ladies' handbags and the like
IPC: A24F15/12
Filed: 1927-08-22
Abstract: 289,312. Laborenz, H. Aug. 22, 1927. Hand bags.-Ladies' hand bags and the like are constituted by a pair of rigid or resilient frames 1 hinged together and provided with composite flexible dished covers consisting of flexible outer layers 2 stiffened by inner layers 3 of leather, cardboard, or other relatively stiff material. The frames may be of angular or U- shaped cross section, either integrally formed, or hinged as shown in Fig. 4. The flexible outer layer may consist of paper, leather, silk, velvet, pearl embroidery, metal gauze, interwoven silk and metal threads, or other textile materials. An inner lining 4 of silk, velvet, or the like may be provided. The cover may have one or more folds similar to camera bellows for increasing the capacity of the case, and partitions may be attached to the inner lining to form compartments for manicure sets &c.
Patent GB-599917-A (GB)
Title: Improvements in and relating to gas fired ovens or furnaces
IPC: F23N1/00
Filed: 1944-11-09
Abstract: 599,917. Gas buriiers. GUNSTON, D., and BAKER PERKINS, Ltd. Nov. 9, 1944, No. 22086. [Class 75 (i)] [Also in Group XXIX] The subject-matter is similar to that of Specification 599,916, but the claims are directed towards the arrangement in the gas supply pipe 2 of a safety cut-off diaphragm valve 3 and a valve 1 which is adapted to lie controlled by the pressure or suction of the circulating fan so as to close in the event of the pressure or suction failing. The safety cut-off valve closes oil failure of the gas supply and is reopened by gas byepassed through a pipe 8 connected to the supply pipe 2 on the mains side of the valve 1. The valve 1 is preferably solenoid actuated as shown and controlled by a switch 7 actuated by the pressure or suction on a diaphragm 18 through a pipe 9.
Patent GB-335666-A (GB)
Title: Match book
IPC: A24F27/12
Filed: 1929-07-18
Abstract: 335,666. Fairweather, H. G. C., (Aktiebolaget Siefvert & Fornander). July 18, 1929. Packing matches. -Match strips 2, 3, are secured by stitching to a strip 1 which, when folded, forms the cover of a match package. The match strips may be cut to form individual matches either before or after being secured to the covering strip 1. A space is left between the various sets of matches which are to form the separate packages when the covering strip is cut at the lines 5. These spaces may be formed either as indicated at 2 or as at 3. The covering strip 1 is scribed or pre-folded along lines 4. The match strips are folded inwards, Fig. 2, and the uppermost side of their base portions may be secured to the covering by pasting. A substance to form a frictional striking surface 6 is secured to one or both of the turned-in marginal covering portions, and the cover strip may be further folded at the lines 4, 4, Fig. 2. The covering strip 1, Fig. 1, with match strips attached is sent through the match-making machine in place of the usual carriers.
Patent GB-281032-A (GB)
Title: Improvements relating to elastic fluid turbines
IPC: F01D5/22
Filed: 1926-09-09
Abstract: 281,032. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. Sept. 9, 1926. Blade.s are shrouded by passing their tips through apertures in a double T-shaped shroud and securing them by binding means passing between the blade tips and the upstanding parts of the shroud. The blades have tips 6, Fig. 5, passing through holes 5 in the shroud 4, and secured by binding wires 8 fitting between recesses 7 and the unstanding parts 3. pressing the edges of the shroud on to the tops of the blades. The binding members and recesses may take the forms shown in Figs. 7 and 8. The binding wires mav be continuous, or may be short pieces for each blade, and secured by welding, cross pins 9. Fig. 10, bent over parts 11 of the flange 3, Fig. 13, or by screws; or they may take the form of complementary U-shaped pieces soldered together at their ends, Fig. 18. The blade tops may be strengthened by being made round, Fig. 18.'or square. The flange 3 may be bent over to form a complementary recess for the binding wire.
Patent GB-224330-A (GB)
Title: Improvements in or relating to machines for folding over the edges of sheet material
IPC: B24D9/08
Filed: 1923-09-05
Abstract: 224,330. Thacker, W. E. Sept. 5, 1923. Wheels and other tools.-Relates to tools of the Naumkeag type, and comprises a machine for making emery cloth or like abrasive or scouring &c. caps or covers, the emery cloth being in the form of a disc a with radial cuts b to form a series of flaps c which are folded over by the machine. The disc is placed in a recess 4 in a circular table 3 rotatably mounted on a base 1, and pressed into the recess, whereby the flaps are raised, by a presserplate 9, three of which plates are mounted on a rotatable carrier 6, springs 8 serving to lower the plates and cam-levers 10 serving to raise the plates. On a post 17 is mounted a guide member 15 shaped so as temporarily to flatten the flaps as they pass, by rotation of the table, beneath the guide to the first of two fingers 43. The table is rotated intermittently by teeth thereon and one or other, according to the direction of rotation, of two pawls 29 carried by an arm 28 which is oscillated through a rod 26 and a link 27 by an adjustable crank-pin 25. The folding member comprises a foot 33 carried by a rod 35 moved, through links 39, 40, by a crank-pin 37, and guided by a felt-packed bearing 42. The fingers 43, which are for holding down the flaps before and after folding, are pivoted to the bearing 36, are pressed down by a spring 44, and are lifted, to allow the table to rotate, by a slotted link 45 connected with the rod 35 and adapted to engage a pin 46 connecting the fingers. In a modification, Fig. 7, the presser-plates 9 are rotatably mounted in a carrier 6, which is moved downwards by a spring 48, and is raised by a cam lever 50. A feed-table 56 is provided comprising a plate having therein three openings at the side of which are guideways 59 which replace the guide 15. The feed-table carries the emery cloth discs which are pressed therefrom on to the table 3 when the carrier 6 is lowered ; thus, while one disc is being folded another may be placed on the feed-table, which is then rotated to bring the disc above the table 3. The presser-plates may be contractible in order to allow of their removal from the folded cover, the contraction being effected as the plate is raised and the expansion as the plate is lowered, by wheels having inclined teeth which are engage by fixed pins.
Patent GB-500495-A (GB)
Title: Improvements in or relating to seam pressing or in or relating to the application of tape to a seam
IPC: A43D55/00
Filed: 1937-08-14
Abstract: 500,495. Affixing adhesive tape. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation) Aug. 14, 1937, No. 22369. [Class 73] [Also in-Group VII] Relates to machines for pressing seams in shoe upper parts, particularly the back seam, and consists in applying pressure to the whole of the seam simultaneously along its length while the seam has its normal curvature, meanwhile maintaining the material at the sides of the ridge against displacement. A length of tape may be applied over the seam. The work is placed on a form comprising a main member 220, Fig. 17, having a complementary member 226 which is swung towards the seam, after the work has been positioned; by toggle linkage. The presser comprises a block 236, Fig. 10, pivoted to a lever 232 actuated by a link 354 and a cam on the shaft 258. The block is maintained parallel to the form by a pivoted member 364 and links 362, 366. The sides of the work piece are engaged by grippers 240, Fig. 17, secured to shafts 312, 314 moved inwards by meshing bell-crank levers 316, 318 and a cam-actuated link 336. The inner jaw of each gripper is loose on its shaft, 312 or 314, and lies in a recess 332 in the form. When the grippers have been closed on the work, they are depressed, to tension it over the form, by springs 348 secured to slidesengaging the shafts and lowered by a lever 342. A heated seam pressing tool '238 is pivoted at 390, Fig. 10, and actuated by an eccentric on a shaft 270 through a link 394 after the member- 226 has been moved to operative position. The pivot 390 is carried by a slide raised and lowered by toggle links 378, 380 and a cam-operated lever. After the seam has been pressed, the presser 236 and the grippers 240 are raised to permit the introduction of a length of adhesive tape from a roll 246, a rod 418, having at its end a spur, being raised by a lever 438'to cause the spur to engage the tape. The tape is then passed under the seam by a lever 414 urged forwardly by a spring 410 provided with a limit stop screw 428, and a cam-actuated operating lever 412. On withdrawal of the rod 418 the work is again pressed to cause the tape to adhere. All parts of the machine then return to starting position.
Patent GB-442141-A (GB)
Title: Improvements relating to the mixing of fluids and powders, or granular substances
IPC: B01F15/02
Filed: 1934-08-01
Abstract: 442,141. Mixing-machines. BRITISH REMA MANUFACTURING CO., Ltd., and HOWDEN, P., Hubert Works, Highroad Well, Halifax, Yorkshire. Aug. 1, 1934, No. 22382. [Classes 23 and 86] A machine for mixing solid or liquid materials comprises means for feeding the materials by separate .channels which terminate in proximity to rotary mixing elements in a casing from which the mixture is continuously discharged. The materials which may be in powder, viscous liquid or paste form are fed in channels formed between coaxial conical members L, N, R, and terminating close to the mixing-blades a formed on a disc A rotating in a casing E. The conical assembly is vertically movable on guides d. One of the annular channels V, supplied by a tangential pipe v is furnished with a deflecting ring o which effects a preliminary mixing of the material fed thereto before it is fed to the mixing-blades a. The blades may be replaced by intercalating pins on the disc A and cover plate D.
Patent GB-706134-A (GB)
Title: Improvements relating to gear wheels provided with friction clutches
IPC: F16D7/02
Filed: 1951-09-25
Abstract: 706,134. Securing gearing elements to hubs &c. by yielding coupling means. YATES, H. Sept. 9, 1952 [Sept 25, 1951], No. 22383/51. Class 80 (2) A gear wheel, such as a worm wheel, includes a friction coupling which slips, on overload and comprises a toothed ring f journalled on the hub c of the gear wheel and abutting a flange c<SP>1</SP> on the hub, a disc g frictionally engaging an exposed face of the toothed ring and being held against rotation on the hub c, e.g. by screws h, and screw means, such as a nut and a thrust bearing l, acting against the radially inner portion of the disc g to force the radially outer portion thereof against the exposed face of the toothed ring before the inner part of the disc engages the flange c<SP>1</SP> of the hub. Either the disc g is annularly recessed at g<SP>1</SP>, as shown, and its radially inner portion is slightly cut away, or alternatively the inner lateral face of the hub engaged by the disc g is slightly cut away. The screws h, which prevent rotation of the disc g relatively to the hub, pass through bushes i of slightly greater length than the maximum thickness of the disc g. The device is applicable to bench frames, such as described in Specification 687,290, [Group XXII], referred, to in the Provisional Specification.
Patent GB-399302-A (GB)
Title: Improvements relating to electric fires
IPC: F24C15/08
Filed: 1932-08-11
Abstract: 399,302. Supports for stoves. FERRANTI, Ltd., Hollinwood, and BUTTERFIELD, W. V., Old Lane, Grasscroft, near Oldham, both in Lancashire. Aug'. 11, 1932, No. 22485. [Classes 39 (iii) and 126.] The front or rear supports of an electric fire are formed by pivoted legs c which are drawn towards the other supports b by springs g of such strength that they hold the legs in any position to which they are brought by downward pressure on the stove, such pressure exerting a wedging action tending to spread the legs and so allowing the stove to be set in a more or less tilted position.
Patent GB-817791-A (GB)
Title: Improvements in and relating to light transmitting and controlling fittings
Inventor: ENGLISH SOLOMON
IPC: F21V5/00
Filed: 1954-08-03
Abstract: 817,791. Light refractors. HOLOPHANE Ltd. Aug. 2, 1955 [Aug. 3, 1954], No. 22562/54. Class 75(2) A refractor for use with a concentrated light source 1 has horizontal circumferential prisms 2 extending from above the light source at least down thereto to refract the light in a downward direction over a wide angle to the vertical, and vertical prisms 7 acting to concentrate the light horizontally into two or more beams, the horizontal prisms 2 extending so far above the light source and being so formed that the principal beam refracted thereby is emitted at an angle below the horizontal and some of the vertical prisms 7 being spaced by a narrow clear area 6 and/or flute, such areas 6 and/or flutes being disposed at closer intervals towards the axes of the beams. The horizontal prisms 2 are formed upon the outside surface of a cylindrical portion of the dome shaped refractor and extend down to a depth of twenty degrees (angle 4) below the plane of the light source. The lowermost horizontal prisms 5 have curved refracting surfaces, the curvature progressively reducing upon each higher prism. The uppermost horizontal prisms 3 have straight or nearly straight refracting surfaces. The vertical prisms 7 are formed on the inner surface of the cylindrical portion. The portion 8 of the refractor above the cylindrical portion is toroidal and is formed with axial reflecting prisms 9 arranged to reflect the light downwardly into a cone having a wide angle from the vertical. The radius of curvature of the upper portion 8 may be greater than its distance from the light source. In a bowl refractor (Figs. 4, 5, 6, not shown) the horizontal prisms are formed on the outside surface of an upper tapering cylindrical part of the bowl and the inside surface thereof is formed with vertical prisms, flutes and clear areas which extend downwardly into the lower spherical portion of the bowl. The bowl provides an elliptical horizontal light distribution. The areas of' the bowl corresponding to the minor axis of the ellipse have strong prisms and few flutes, and the areas corresponding to the major axis have flutes only. The intermediate areas have flutes, prisms and clear areas, the prisms being weaker and the clear areas wider towards the major axis. A portion of the outer surface of the bowl below the light source may have no horizontal prisms and below this portion further horizontal or lenticular prisms may be provided. The vertical prisms may be on the outside surface and the horizontal prisms on the inside surface. The refractor may be formed by two members in which case the horizontal prisms are formed on the external surface of the inner member and the vertical prisms are formed on the inner surface of the outer member.
Patent GB-1537294-A (GB)
Title: Device for sealing an aperture in a partition wall through which extends a rotating drum
IPC: D06F39/08
Filed: 1976-06-16
Abstract: 1537294 Face seals H F ARENDT 16 June 1976 [30 Aug 1975] 22572/78 Divided out of 1537293 Heading F2B A rotating drum 1 is sealed where it passes through a wall 2 by a resilient sealing member 4, held on a flange 5 of the drum 1 by a clamp 6 and having a lip extending radially inwards to engage an annular plate 3. The plate 3 may be of stainless steel.