baber/WOPTO huggingface dataset:
Patent GB-1073490-A (GB)
Title: Centrifugal compressor impellers
IPC: F04D29/28
Filed: 1966-02-03
Abstract: 1,073,490. Centrifugal compressors; gas turbine engines. GENERAL MOTORS CORPORATION. Feb. 3, 1966 [Feb. 18, 1965], No. 4760/66. Headings F1C and F1G. [Also in Division F2] Each impeller blade 28 of a centrifugal compressor for a gas turbine engine has a pair of webs 32, each of which abuts a corresponding web on an adjacent blade to form a rear wall constituting one side of the flow passage between the two blades. The blades 28 are fixed to a hub 24 by dovetail roots and are welded at their trailing edges to an annular back plate 34 which is welded to the hub. To allow radial growth of the blades 28 without load transfer through the webs 32, no connection is made between the abutting edges of the webs. Inducer vanes 40 which, as shown, may be staggered in relation to the blades 28, are formed integrally with a hub 38. The hub 38 and a collar 42 are connected to the hub 24 by a pair of pins 44. The impeller is connected to a turbine shaft 46 by a hollow tie bolt 48. Two spring-pressed lock pins 54 on the hub 38 engage the serrated edge 52 of an annular flange 50 on the tie bolt 48. External threads on the lower end of the tie bolt 48 engage internal threads on the upper end of the shaft 46. The upper circumferential edge of the shaft 46 has serrations mating with serrations 47 on the lower circumferential edge of the collar 42. Accessories (61), Fig. 1 (not shown), are supported by a housing (58) suspended within the inlet (12) by struts (60) and are driven by a shaft (62) which is splined to an internal tubular portion 64 of the tie bolt 48.
Patent GB-800280-A (GB)
Title: A process for preparing halogenated aryl silanes
IPC: C07F7/12
Filed: 1956-02-15
Abstract: Halogenated aryl silanes are prepared by reacting (a) a polyhalo compound of the general formula <FORM:0800280/IV (a)/1> wherein Y is chlorine, bromine or iodine, each X is chlorine, fluorine or a perfluoroalkyl radical, and m is an integer of from 1 to 5, with (2) a silane of the general formula RaHbSiCl4-a-b, wherein R is phenyl, methyl, ethyl or propyl, a is 0, 1 or 2, b is 1 or 2 and a+b does not exceed 3, at a temperature of from 400 DEG  to 650 DEG  C. and a pressure of from atmospheric to 50 lbs./sq. inch, none of the reactants being in the condensed phase.  Suitable polyhalo compounds are o-, m- and p-chloro (tri-fluoromethyl) benzenes, 1,2,4-trichlorobenzene, 2,4- and 3,4-dichloro (trifluoromethyl) benzenes, p-bromo (trifluoromethyl) benzene, pentachlorodiphenyl iodide, hexachlorobenzene, 1-chloro-3,5-bis (trifluoromethyl) benzene, dichlorobenzenes, hexachlorodiphenyl, chlorodifluorobenzenes, chlorofluoro-(trifluoromethyl) benzene, perfluorodecylchlorobromofluorobenzene, isdodifluoro (trifluoromethyl)-diphenyl and 1,3 - di - pentafluoroethyl 2,4-difluorobenzene.  Preferred contact times for the reaction are 1 to 30 seconds, and the reaction may be effected by passing the compounds through a heated tube.  The examples describe the preparation of: (1) (m-CF3,C6H) Si(CH3)Cl2; (2) (m-CF3C6H4)SiCl3; (3) (p-CF3C6H4)Si(CH3)Cl2; (4) a mixture of mono-and di-chlorophenyl trichlorosilane; (5) CF3(Cl)C6H3Si(CH3)Cl2; (6) CF3(Cl)C6H3Si(CH3)Cl2 (a different isomer from (5)); (7) o-trifluoromethylphenylmethyldichlorisilane; (8) (m-CF3C6H4)Si(CH3)2Cl; (9) di - (p - trifluoromethylphenyl)dichlorosilane; (10) (pentachlorodiphenyl)phenyldichlorosilane; (11) pentachlorophenylmethyldichlorosilane; (12) 3,5-bis-(trifluoromethyl)phenylmethyldichlorosilane. Specifications 635,645, [Group IV (b)], and 782,333 are referred to.
Patent GB-1157027-A (GB)
Title: Improvements in or relating to Roller Blinds of the Awning Type
Inventor: COOPER EDWARD JAMES
IPC: E04F10/06
Filed: 1967-02-01
Abstract: 1,157,027. Awning type roller blinds. G. HALL & 'CO. Ltd. 18 April, 1968 [1 Feb., 1967], No. 4816/67. Heading E1J. . In a roller blind of the awning type wherein the rolled up blind together with articulated laterally pivoting supporting arms is housed in a blind box when the blind is rolled up and is closed at its front side by a lath attached to the free edge of the blind, there are included support anchor plates 11 for each trunnion block 12 each mounting a supporting arm 5, the plates 11 being pivoted on a horizontal pin 7, and an arm 13 extending from each plate 11 to support the adjacent end of the roller 2. Stop means such as screw 16 limits (in adjustable positions by means of holes 18 and pin in plate 17) the pivotable movement of the plate 11 when the blind is extended, the movement being caused by the weight of the extended arms and blind and when the blind is rolled up, the weight is so distributed about the pivot 7 as to cause the plate 11 to tilt in the opposite direction to dispose the lath vertically to close the blind box. The position of the roller 2 may be adjusted in one of three positions by a series of coinciding holes 14 in the roller bracket 15 and arm 13.
Patent GB-1109831-A (GB)
Title: Improvements in and relating to force measuring devices
IPC: G01M99/00
Filed: 1964-02-05
Abstract: 1,109,831. Dynamometers; measuring force electrically. R. S. HALL. May 4, 1965 Feb. 5, 1964], No. 4817/64. Headings G1N and G1W. A dynamometer comprises a member 2 inserted between a brush and the commutator or slip ring of an electric generator or motor to sense the pressure there between. The member 2 has a portion 2a pivoted by a spindle 8 between outer portions 2b Fig. 2 secured to a body 4 provided with a handle 6. In operation a member 10 pivoted to the body 4 at 12 is pulled towards the handle 6 and presses a spring 14 against a disc 16 on a post 18 attached to an inner extension of the portion 2a disposed above a spring 20. Immediately the pressure applied overcomes the brush pressure, the disc 16 contacts a ring 42 to light a bulb 36 indicating that a pointer 28 operated by a cord 22 attached to an arm 10a of the member 10 is registering the required pressure on a dial 28. In another embodiment, Fig. 6 and Figs. 7, 8 (not shown), as a member 113 is pulled towards a handle 100 it stresses a spring 121 attached to an arm 118 with a detent 120 restraining a dial 108 from rotation. As soon as the pressure applied overcomes the brush pressure, transmitted from the securing member through a rod 117 to the arm 118, the detent is released and as the member 113 is returned by the spring 121 it drives, through gears 109, (110) and a friction clutch (116), the dial 108 to indicate the required pressure. In yet another embodiment Fig. 4 and Figs. 3 and 5 (not shown) when the movable port 50a of the sensing member 50 pivots a spindle 54 a cranked part 56 acts on a carbon pile 58 to unbalance a wheatstone bridge circuit causing a pointer (84) to indicate the pressure against a scale (82). A leaf spring 70 holds the crank arm 56 against the pile 58 which is carried by a pivoted arm 60 pulled by a tension spring to keep a shaft 68 thereon against a push button 76. To operate the device the button 76 is pushed to retract the pile 58 and allow the leaf spring 70 to turn the port 50a into the plane of a fixed port 50b of the sensing member 50 which is then inserted between the brush and slip ring. The button 76 is released and as soon as the brush pressure is overcome the crank 56 acts on the carbon pile and the pointer deflection indicates the required pressure. To avoid damage due to overload, the spring 64 is chosen to allow the arm 60 to pivot if the brush loading is excessive.
Patent GB-478038-A (GB)
Title: Improvements in or relating to packing cases
IPC: B65D25/16
Filed: 1937-02-18
Abstract: 478,038. Packing-cases. HARTMANN, C. W. Feb. 18, 1937, No. 4892. Convention date, Feb. 18, 1936. [Class 18] A packing-case especially suitable for eggs, fruits or vegetables comprises a skeleton constructed of wooden slats, the side openings of the skeleton being closed by sheets of cardboard or the like loosely inserted in the skeleton in such a manner that the edges of the sheets are protected by the wooden slats of the skeleton, which also has a bottom and a cover. The bottom and cover of the skeleton may be of wooden slats which may be spaced apart or a solid bottom and/or top may be provided. The sheets may be united to form a one-piece lining without bottom and cover. Preferably, the wooden skeleton is such that at least a part of the edges of the sheets are completely surrounded, pairs of slats meeting at rightangles. The skeleton may also have slats to protect the walls of the sheets. The lining 1 without bottom or cover is made by folding a piece of corrugated cardboard and uniting the free edge with adhesive paper strip. It fits into a skeleton of wooden slats 2, 3, 4, 5 and is subdivided into compartments by members 9. All edges 6, 7, 8 of the lining are protected by slats. The sheets of the lining 1 are provided with ventilation apertures 10.
Patent GB-864664-A (GB)
Title: Fluid coupling device
IPC: F16D35/00
Filed: 1959-02-12
Abstract: 864,664. Hydraulic couplings. SCHWITZER CORPORATION. Feb. 12, 1959 [Feb. 17, 1958], No. 4903/59. Class 69 (2). An hydraulic coupling for transmitting torque from an engine crankshaft to an accessory comprises a housing having oppositely facing walls 16, 18 which are relatively movable to vary the spacing therebetween, and a rotor 37 having its side surfaces extending in face-to-face relationship with the walls, the centrifugal force exerted by the fluid during transmission of torque between the rotor and housing effected by the shearing action of the fluid providing a pressure which increases the spacing between the walls to decrease the transmission between the rotor and housing as the speed of rotation increases. The housing is in the form of a cupshaped member 16 and a movable wall 18, the member 16 having a cover 21 which provides a reaction surface for springs 26, 27 to urge the wall into the member and also clamps a diaphragm 19 to the member; the diaphragm is also clamped to the wall 16. The rotor 37 consists of two plates 38, 39 which are welded together and have their radially outer portions axially spaced apart. The outer portion, which may have facings 42 of cork, asbestos, or other friction material, are provided with holes 43 44, Fig. 2, which, together with the space 41 between the outer portions and tangential slots 46, Fig. 3, in the member 16 and wall 18 or the rotor, toroidally circulate the fluid to effect cooling thereof; fins 15 also assist in the cooling of the fluid The rotor is supported on splines 35 formed on a sleeve 32 which is rotatably mounted on a bearing 10 and driven by a V-belt from the engine. During operation, as the speed of the rotor increases, the centrifugal force of the fluid moves the wall 18 away from the member 18 against the action of the springs to increase the spacing from the rotor and reduce the torque transmitted by the coupling. Removal of a plug 36 permits filling of the coupling with fluid, such as silicon oil, to a level 30. Specification 863,532 is referred to.
Patent GB-285650-A (GB)
Title: Improvements in or relating to hoof-pads for horse shoes
IPC: A01L7/02
Filed: 1927-02-22
Abstract: 285,650. Lobb, M. F. V. Feb. 22, 1927. Renewable treads; hoof-pads.-A hoofpad 10 with suctionholes 11 is supported by a bar 13 passing through it and the limbs of the shoe, one end 15 being wedge-shaped to engage a corresponding aperture and the other end 16 being screw-threaded and provied with a nut 18. If the bar is shaped as in Fig. 1, the aperture takes the form of a T-shaped slot in the face of the shoe.
Patent GB-121879-A (GB)
Title: Improvements in Fastenings for use with Hose and other Wearing Apparel.
Inventor: MARTIN WALTER BISNEY
IPC: A41F3/02
Filed: 1918-03-20
Abstract: 121,879. Martin, W. B. March 20, 1918 Stocking - suspender grips.-The stud of a frictiongrip suspender for hose &c. comprises a button head A of leather or yielding material and a separate sleeve C of the same material surrounding the shank B The shank may be formed as shown in Fig. 3 with a shoulder f, against which the head abuts.
Patent GB-475574-A (GB)
Title: An improved process for obtaining compounds of keratin splitting products which are rich in heavy metal
IPC: A61K38/01
Filed: 1936-02-18
Abstract: Keratin degradation products containing a large amount of heavy metal are prepared by hydrolyzing keratin materials with acid to the gelatinous state or to the point where solution just occurs, and after reducing the product, treating it in solution with a heavy metal salt in quantity substantially exceeding that which the sulphydryl groups can bind as shown by the sodium nitroprusside test; the solution is then neutralized and poured into an organic solvent to precipitate the heavy metal compound. In an alternative process, the sulphydryl groups in the reduced product are partly or almost wholly removed by oxidation before the addition of the heavy metal salt.  The products possess enhanced therapeutic properties. According to the examples: (1) the sulphydryl keratinic acid prepared according to Specification 412,366 is treated in aqueous solution with successive small quantities of auric chloride until the precipitate no longer redissolves, neutralized with caustic soda, filtered and stirred into alcohol; (2) a sulphydryl keratinic acid prepared by hydrolyzing hair with dilute hydrochloric acid, reducing with zinc and removing the zinc with hydrogen sulphide, is oxidized by evaporation of the solution in the air and the residue then dissolved in water, which may be saturated with sulphur dioxide, and treated as in (1) with auric chloride; (3) the sulphydryl albumose solution obtained by hydrochloric acid hydrolysis of wool or hair to the point of solution, followed by reduction with tin and removal of the metal with hydrogen sulphide, is evaporated to dryness in vacuo and an aqueous solution of the residue then treated with auric chloride as in (1); the residue may be precipitated from solution in alcohol before treatment with the auric chloride; (4) the sulphydryl keratinic acid prepared by the process described in Specification 412,366 is treated in aqueous solution with small quantities of an aqueous solution of silver nitrate until the precipitate remains undissolved on stirring, whereupon the solution is neutralized and poured into alcohol; instead of silver nitrate may be used mercuric acetate, stannous chloride or ferrous sulphate; (5) a sulphydryl keratinic acid obtained by reducing the acid hydrolysate of hair is oxidized by repeated evaporation of its aqueous solution in the air; to an aqueous solution of the residue an aqueous solution of copper acetate, stannic chloride or zinc acetate is added in portions and the product worked up as before.  Reference has been directed by the Comptroller to Specification 412,366.
Patent GB-1092383-A (GB)
Title: A method of and apparatus for moulding articles having superposed sections arranged in tiers
IPC: E05B47/02
Filed: 1965-02-04
Abstract: 1,092,383. Artificial flowers. A. J. FRISTOT. Feb. 4, 1965 [April 8, 1964], No. 4981/65. Heading A4X. [Also in Division B5] An injection moulding plastic flower comprises ten tiers of petals I-X and a central pistil XI all of which are formed integrally with a central ribbed conical region 36 and 37.
Patent GB-1409201-A (GB)
Title: Ultrasonic applicator
IPC: A61B8/08
Filed: 1973-01-31
Abstract: 1409201 Ultrasonic transducers SIEMENS AG 31 Jan 1973 [31 Jan 1972] 4985/73 Heading H4J [Also in Division A5] An ultrasonic transducer assembly for use in a doppler system for detecting movements of an object within a body, particularly detecting foetal heart beats, comprises a number of transmitting and receiving ultrasonic transducers distributed over a support arranged along a closed path, having no convex path segments as viewed from inside the closed path. As described the piezo-electric transmitting transducers 1, 2, 3, and piezo-electric receiving transducers 4, 5, 6, are located at equally spaced positions around a polystyrene ring 10, in cavities (7<SP>1</SP>) Fig. 1 (not shown) formed in the ring. The centre of the ring may contain an inflated balloon 16 connected to a pressure transducer via tube 17 to form a tocodynamometer for registering pressure changes in the abdomen of a woman in labour.
Patent GB-373648-A (GB)
Title: Improvements in and relating to the production of multi-coloured photographic images
IPC: G03C1/005
Filed: 1931-02-17
Abstract: 373,648. Colour photography. SYNCOMEX STUDIEN- & FINANZIERUNGSGES., 18, Kappelergasse, Zurich, Switzerland. Feb. 17, 1931, No. 5024. Convention date, Feb. 17, 1930. [Class 98 (ii).] In a tripack, the sensitive film for the blue component image is positioned remote from the objective and the two front films are constituted by extremely thin coatings of relative low silver content ; the silver content of the middle film may be intermediate between the silver contents of the outer films. To minimize scattering, the rear film emulsion is made as thin as possible and antihalation provision is made between the film and its support or behind the latter. The carriers for the two front components, e.g. for the red and yellow component images, are made as thin as possible to improve definition. An orange or red filter is placed in front of the blue component emulsion. To improve the rendering of the yellow component negative, it is rendered red sensitive, e.g. by dicyanin. The exposure should be just sufficient for correct exposure of the blue component: and different developers, reducers or intensifiers are used in developing the individual negatives to ensure similar gradation. Where the negatives are too thin to be copied by transmitted light, diapositives are prepared by photographing them against a reflecting background, e.g. white paper. Glass carriers may be used for the front and back films. Reference has been directed by the Comptroller to Specifications 14243/09, 183,189, 205,807, 280,053, and 324,394, [all in Class 98 (ii), Photographic processes &c.].
Patent GB-1145952-A (GB)
Title: Isocyanate-containing oxadiazinones and the preparation thereof
Inventor: LIEBSCH DIETRICH
IPC: C07D273/04
Filed: 1967-02-02
Abstract: 1,145,952. Isocyanate-containing oxadiazinones. FARBENFABRIKEN BAYER A.G. 2 Feb., 1967 [2 Feb., 1966], No. 5092/67. Heading C2C. [Also in Division C3] Isocyanate - substituted 1 - oxa - 3,5 - diazine trione-2,4,6 compounds may be obtained by reacting one or more aliphatic or araliphatic polyisocyanates in which the isocyanate groups are of substantially similar reactivity with carbon dioxide in the presence of a trisubstituted arsine oxide, a trialkyl phosphine or an aromatic-aliphatic tertiary phosphine as catalyst. The polyisocyanate starting materials contain aliphatically bound isocyanate groups of substantially similar reactivity and they may be reacted in admixture with aliphatic monoisocyanates. The amount of catalyst employed is suitably 0À01 to 10% by weight and the reaction may be effected at - 50‹ to 150‹ C., optionally in the presence of a solvent. The reaction may be continued until high molecular weight resins are formed or the catalyst may be inactivated by the addition of an acylating or alkylating compound before the isocyanate content has dropped to less than 60% of the initial value. The carbon dioxide employed in the reaction may be obtained by the addition of solid carbon dioxide, by carrying out the reaction in an autoclave under a carbon dioxide pressure of 5 atmospheres gauge or the carbon dioxide may be obtained by reacting part of the isocyanate groups with an active hydrogen-containing compound. In examples, specified isocyanates employed are hexamethylene diisocyanate, which may be admixed with butyl or 6-chlorohexyl isocyanate and tetramethylene diisocyanate; in Example 12, the product of reacting hexamethylene diisocyanate with carbon dioxide is treated with phenol to yield a urethane.
Patent GB-473050-A (GB)
Title: Improvements in curved teeth for bevel gear wheels
IPC: B23F15/06
Filed: 1937-02-20
Abstract: 473,050. Gear - cutting. ZEISS, C., [Firm of]. Feb. 20, 1937, No. 5094. Convention date, March 2, 1936. [Class 83 (iii)] [Also in Group XXIV] Relates to a curved-toothed bevel wheel in which the teeth of the basic crown-wheel are convex and concave surfaces of substantially spherical form, being formed by a cutter a, Fig. 1, having teeth b, whose cutting edges are arcs of circles, the centres of which lie preferably at or near the points C, D on the cutter axis c. The tooth space may vary in width and depth from one end to the other by inclining the cutter axis c out of parallelism with the axis of the crown-wheel blank h, Fig. 2. According to the invention, a sphere of centre F and radius m is intersected approximately in great circles by the tooth flanks, where F is the point of intersection of the axis of the crown-wheel with its pitch plane (i.e. the plane of the paper) and the radius m of the sphere lies between the interior and exterior radii o, n of the crown-wheel, Preferably the radius m at which this condition is strictly true, is the mean between the radii o, n. It will be seen that the angles C, F H and D F J must be right-angles. At H, J the profiles of the teeth when projected on to tangent planes of the sphere of centre F, and radius m will give straight lines. The crown-wheel tooth is thus the equivalent of the straight-sided tooth of a basic rack for spur gearing. The cutter may be employed to represent a tooth of the basic crown-wheel to generate a bevel wheel. To produce a measure of relief between intermeshing gears, the centre of the convex cutting edge d may be displaced from the axis c to a point A, and the centre of the concave edge e may be displaced to B.
Patent GB-1369915-A (GB)
Title: Moles
IPC: E02B3/06
Filed: 1972-02-03
Abstract: 1369915 Moles HOYER-ELLEFSEN AS 3 Feb 1972 [5 Feb 1971 9 Feb 1971] 5132/72 Heading E1H A fixed or floating mole for forming a harbour, is made up of a base 1, spaced supporting framework elements 2', and breaking elements 4 or 4' extending between adjacent elements 2'. Either the elements 4 or 4' are designed to fail in heavy seas before the other parts forming the mole, or they are mounted so as to be pivoted (Fig. 3 not shown), slid (Fig. 4 not shown), or raised or lowered above or below the waves to prevent their being damaged in rough weather. The base 1 may be used as an oil storage tank.
Patent GB-537325-A (GB)
Title: Improvements in process of making pipe plugs
IPC: B23B11/00
Filed: 1940-03-19
Abstract: 537,325. Making pipe plugs. FAIRWEATHER, H. G. C. (National Acme Co.). March 19, 1940, No. 5134. [Classes 83 (ii) and 83 (iii)] Lathes ;screwing.-Screwed pipe plugs 7, Fig. 3, are formed from bar stock by first forming a taper with the larger diameter at the end of the bar, then milling a slot or squared end, then threading by a tool moving from the larger to the smaller diameter and finally parting from the bar. The operations may be carried out at successive work stations of a multi-spindle lathe. At the first station the plug is formed by tools 8, Fig. 9. At the second station a slotting attachment is carried by the main tool slide 6, the cutter 12 being rotated about the work at the same speed as the work by gearing 11. If a square or angular formation is to be made on the plug, the square milling attachment 13, Fig. 12, replaces the slotting attachment. This attachment is secured to the beam 5 of the lathe, the cutter being rotated by gearing 15 and fed by a pusher 14. At the third position the plug is threaded by dies 16 supported from the beam 5. The chasers are contracted during the cut to form a taper thread. For this purpose the shell 18, Fig. 11, of the die-head has an internal taper and when the chaser starts to cut, the yoke 19 and fork 20 are arrested by stop nuts 22. The lead of the thread causes the balls 182 to move along the taper and operate a cam piece 191 to move the chasers inwardly to cut a taper thread. The die is reset by stop nuts 23. At the fourth position, the plug is cut off by a tool 24 on a transverse slide.