baber/WOPTO huggingface dataset:
Patent GB-779940-A (GB)
Title: Improvements in or relating to power-hand cutting tools
IPC: B26F1/38
Filed: 1955-12-09
Abstract: 779.940. Cutting tools. SCINTILLA, Ltd. Dec. 9, 1955 [April 6, 1955 ; Sept. 21, 1955], No. 35388/55. Class 31 (2). A power-operated hand-guided cutting tool comprises a pair of blade carriers 10, 11 which are reciprocated in opposite directions by means of rollers 8, 9, Fig. 1, rotatable on pins eccentrically mounted on gears 3, 4 which are driven by means of a pinion 2 on the shaft of a motor disposed within support means 1 forming a hand grip. The rollers 8, 9 are movable in grooves in a pair of transmission members 12, 13 which are connected to the blade carriers and are guided in their reciprocating movement by means of members 18. The blade carriers have pins 19, 20 respectively which are adapted to be engaged by transverse notches 23<SP>1</SP>, Fig. 6, in cutting blades 23 which have outer oppositely inclined cutting edges. The means 1 support a stand 22 having a longitudinal groove to guide the cutting blades, and the stand has a cross pin 28, Fig. 1, which is adapted to be engaged by notches 23<SP>11</SP> in the lower ends of the cutting blades. The stand 22 is fixed to a base 24 which has an opening to receive the cutting blades. The support means 1 has an opening 29, Fig. 3, communicating with the groove in the stand 22, and the front of the opening 29 is closed by a plate 26, Fig. 1, which is secured to the support means 1 by screw members 27 and serves to maintain the cutting blades in operative engagement with their carriers. The blade carrier 10, which is longer than the blade carrier 11, is provided with openings 21 to reduce the weight thereof. In a modification, Figs. 2 and 5 (not shown), the pinion on the motor shaft meshes with only one of the gears which mesh with each other. In a further modification, Figs. 8 and 9, the lower reduced end of a stand 31 is removably secured in an opening 36 in a base 33 by means of a screw 35 which draws together the parts of the base on opposite sides of a slot 34 therein.
Patent GB-935574-A (GB)
Title: Improvements in or relating to closures for fluid containers
IPC: B65D51/16
Filed: 1961-09-30
Abstract: 935,574. Container closures. J.P. HINDLEY (M. Kessler). Sept. 30, 1961, No. 35445/61. Class 125(3). A one-piece closure cap to provide a selfventing, fluid-tight closure for a container has on its interior surface a flexible, annular lip 3 to sealingly engage with the rim 7 of the container, nodules 8 being provided on the upper surface of the lip 3 to create a non-uniform sealing pressure between the lip 3 and rim 7. The cap may be internally screw-threaded or of the snap-on type, and is preferably made of a plastic material. In a modification, Fig. 6, nodules 8<SP>11</SP> are provided on the inner top surface  4 11 of the cap.
Patent GB-963817-A (GB)
Title: Diene rubbers incorporating colour-stabilized phenols
IPC: C08K5/37
Filed: 1960-10-17
Abstract: Di- and trisubstituted phenols are stabilized by the incorporation of a mercaptan, thioether or dimercaptan.  In examples, phenols stabilized are a butylated octylphenol, a butylated narylphenol and a proprietary styrenated phenol, the stabilizers being 2-mercaptobenzothiazole, dibenzyl sulphide, n- or tert-dodecyl mercaptan, n-lauryl mercaptan or p-xylenedithiol.  Other suitable phenols and stabilizers are specified. U.S.A. Specifications 2,801,981 and 2,830,025 are referred to.ALSO:Unvulcanised diene rubbers are stabilised against oxidation by adding a di- or tri-substituted phenol incorporating a mercaptan, thioether or dimercaptan as colour stabilizer for the phenol. Specified rubbers are natural rubber, polychloroprene, butyl rubber, styrene-butadiene, butadiene-acrylonitrile, polybutadiene and polyisoprene. In examples, various SBR rubbers contain a butylated octylphenol, a butylated nonylphenol or a proprietary styrenated phenol and a colour stabilizer selected from 2-mercaptobenzothiazole, dibenzyl sulphide, n or tet-dodecyl mercapton, n-lauryl mercapton and p-xylene dithiol. Other phenols and sulphur compounds are listed in the Specification. U.S.A. Specifications 2,801,981 and 2,830,025 are referred to.
Patent GB-1031516-A (GB)
Title: Improvements in and relating to training flexible material about packages and the like
Inventor: SANSUM ROBERT DAVID
IPC: B65B13/22
Filed: 1962-09-18
Abstract: 1,031,516. Binding-machines. SEAL-LESS STRAPPING Ltd. Aug. 21, 1963 [Sept. 18, 1962], No. 35454/62. Heading B8C. A mechanism for training wire or strip about packages, in which a shuttle is circulated orbitally and unidirectionally around a package, comprises a device to prevent slack developing in the wire when a small package is being bound. The device 18 comprises a guide 18a and a member 18b which is resiliently loaded upwards in the guide by means of a compression spring 18c thrusting upwards from an abutment 18f. As a roller 15a circulates the wire, the bight engages a finger 18d on the member 18b at, or just after, the angular position where slack begins to develop, and forces the member downwards. The bight is released, after the compression spring has become fully compressed, by the rocking of the finger against the action of a spring 18e.
Patent GB-160156-A (GB)
Title: Improvements in combustion chambers for powdered fuel
IPC: F23C99/00
Filed: 1920-12-20
Abstract: 160,156. Soc. d'Utilisation des Combustibles PulvÚrisÚs. March 12, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Pulverulent-fuel furnaces.-A furnace for burning pulverulent non-bituminous fuel such as anthracite, coke, &c. comprises a combustion chamber 5, Fig. 1, into which fuel and air are injected from a burner 1. The flame strikes against the rear wall of the furnace and is reversed, the combustion products escaping through an outlet 4 adjacent and above the level of the burner. According to a modification, the fuel and air are injected through two burners and the combustion products returned to the front of the furnace where they escape through an outlet arranged between the burners.
Patent GB-470912-A (GB)
Title: Improvements in and relating to friction clutches
IPC: F16D43/18
Filed: 1935-12-24
Abstract: 470,912. Friction clutches. WERSALL, K. J. Dec. 24, 1935, No. 35712. Convention date, Dec. 31, 1934. [Class 80 (ii)] In a centrifugal friction clutch comprising shoes 9 driven by and turnable laterally on driving studs 7 which extend into slots 17 in the shoes, the line of contact 18 of a stud with the leading end of a slot is so inclined that a line 21 perpendicular to and passing through the centre 22 of said contact line passes approximately through the point of action 20 of the 'frictional forces acting on the shoe, whereby the tendency for the lending end of the shoe to rock outwardly is reduced. The slot extends almost-from end to end of the shoe, so that the stud acts near the leading end of the shoe in both directions of rotation. The studs are secured in a rib 6 on a hub 4 secured to a driving sleeve 1 on which the driven drum 11 is journalled. As shown, the studs are arranged radially, their ends 8 being conical. If the heads 8 are cylindrical, the studs are arranged non-radially.
Patent GB-374382-A (GB)
Title: Improvements in appliances for centrifugally purifying gases, vapours and steam
IPC: B04C3/00
Filed: 1931-12-31
Abstract: 374,382. Centrifugal gas cleaners. ALEXANDER, W., 1, Broomhill Avenue, Partick West, Glasgow. Dec. 31, 1931, No. 36056. [Class 23.] A vortical or centrifugal separator 1 is provided with dust channels 4 extending along the side of the separating chamber ; the inner sides of the channels are provided with perforations 7 or longitudinal slots to allow separated dust to pass into the channels. The separator has a tangential inlet 2, Fig. 1, above a partition 8, and the whirling gas passes through the annular space 9 between the partition and the casing ; the annular space may be varied if desired. The clean gas leaves by the discharge pipe 10 which may have a flange 12, and is provided with small apertures 13 to allow any small quantity of dust, which may descend to the bottom of the casing, to pass into the pipe 10. An opening at the top of each channel 4 is normally closed by a cover 5; the lower end of each channel has a flange for the attachment of a dust box or pipe. In the modification shown in Fig. 4, the entering gas flows upwards from the axial inlet 2 through the varied annular space 9 and the clean gas leaves by the discharge pipe 10 at the upper end of the separator. Specification 300,841, [Class 23, Centrifugal machines &c.], is referred to.
Patent GB-1477280-A (GB)
Title: 11,12-secoprostaglandins
IPC: C07D307/38
Filed: 1975-09-03
Abstract: 1477280 11,12-Secoprostaglandins; Grignard intermediate MERCK & CO Inc 3 Sept 1975 [13 Sept 1974] 36310/65 Headings C2C and C2J The invention comprises 11, 12-secoprostaglandins of the Formula I in which R is COOH 1 (C 1-10  alkoxy)carbonyl, CONR<SP>3</SP>R<SP>4</SP> wherein R<SP>3</SP> and R<SP>4</SP> each are H, C 1-4  alkyl a C 4-2  dialkylamino, or CONHNH 2 ; R<SP>1</SP> is H or C 1-4  alkanoyl, R<SP>2</SP> is -O-R<SP>5</SP> or -S-R<SP>5</SP>, where R<SP>5</SP> is C 1-5  alkyl, fluoro-C 1-9  alkyl, phenyl or benzyl optionally substituted once or twice by halogen, CF 3 , C 1-5  alkyl, C 1-5  alkoxy, dimethylamino, nitro, mesyl or C 1-5  alkanoyl, pyridyl, pyrimidinyl furfuryl, thienyl or methylene dioxyphenyl; A is -CH 2 - or O; and each of Y and Z is ethylene, cis- or trans-vinylene or ethynylene, and salts thereof when R is COOH and their preparation. Compounds of Formula I in which A, Y and Z are ethylene, R is COOH and R<SP>1</SP> is H are prepared reacting compound of the formula wherein R 6  is C 1-5  alkyl, with peroxy acids to products epoxides of the formula which are then reacted, in the presence of strong bases, with anions of compounds of the formula R<SP>5</SP>OH or R<SP>5</SP>SH, and the resulting esters hydrolysed. Compounds of Formula I in which R is COOH and R<SP>1</SP> is H may be obtained by alkylating compounds of the formula with compounds of the formula wherein X is halogen, and hydrolysing the resulting esters. Compounds in which R is other than COOH and/or R<SP>1</SP> is alkenoyl are obtained by standard methods from the corresponding compounds in which R is COOH and/or R<SP>1</SP> is H. Compounds of Formula I in which Y is may also be prepared by hydrogenating the corresponding compounds in which Y is ethynylene. The following intermediates are also prepared: ethyl 7 - (methanesulphonamido)heptanoate; ethyl 7 - [N - (4 - pentenyl)methanesulphonamido]heptanoate; 4-fluorophenoxyacetaldehyde and the diethyl acetal thereof; 1 - (2 - tetrahydropyranyloxy) - 4 - acetoxy - 5- (4 - fluorophenoxy) - 2 - pentyne; 1 - (2 - tetrahydropyranyloxy) - 4 - acetoxy - 5 - (4 - fluorophenoxy)pentane; 4 - acetoxy - 5 - (4 - fluorophenoxy) - 1 - pentanol, and the p - toluenesulphonate thereof; 4 - acetoxy - 5 - (4 - fluorophenoxy) - 1 - iodopentane; and N - [4 - acetoxy - 5- (4 - fluorophenoxy)pentyl]methanesulphonamide. 3 - (2 - Tetrahydropyranyloxy) - 1 - propynylmagnesium bromide is obtained by reacting 2- (2-propynyloxy)tetrahydropyran with methylmagnesium bromide. Pharmaceutical compositions, suitable for oral, parenteral, rectal or topical administration, contain the above 11, 12-secoprostaglandins or pharmaceutically acceptable salts thereof together with non-toxic carriers. The compounds may be used for estrus synchronization, treatment of infertility due to persistence of luteal function, and on postcoital contraceptive agents and antithrombotic agents.
Patent GB-344386-A (GB)
Title: Improvements in or relating to pit props and the like
IPC: E21D15/10
Filed: 1929-11-27
Abstract: 344,386. Pit props. POWER, M. J., 12, Gyfeillon Road, Trehafod, and JEREMY, T., Bryngwyn, Pontypridd, both in Glamorgan. Nov. 27. 1929, Nos 36333/29 and 18099/30. [Class 20 (ii).] Mine props of the type formed of two members with abutting ends and a clamping member surrounding the joint, have the abutting ends inclined and stepped at 12, 13 and the clamping member is in the form of a two-part sliding sleeve, one part 14 provided with lugs 15 which enter apertures in the ends of the other part 16 and are secured by wedges 17. To release the prop the sleeve is unclamped and lowered to clear the joint and a lateral pull is exercised on a ring 19 by a chain 18 to pull the parts out of alignment. In order that this movement may occur easily, the other end of one of the prop members is rounded off at 20, or the ends of both members may be so rounded. A retaining chain 21 is provided between the collars 19, 22 secured one to each of the prop members.
Patent GB-927371-A (GB)
Title: Electronic flash lamp assembly
IPC: H05B41/34
Filed: 1960-10-24
Abstract: 927,371. Discharge lamps. BALDWIN PIANO CO. Oct. 24, 1960 [Jan. 5, 1960], No. 36443/60. Class 39 (1). [Also in Groups XXXVI and XXXVIII] An electronic flash lamp for a photo-electric encoder (Fig. 1, not shown) (see Group XXXVIII) has radially opposed discharge electrodes 4, 9 (Fig. 6) energized from earthed centre tap D.C. source 36 over RC network 40, 42; and six firing electrodes disposed in groups of three along each side of the axis of electrodes 4, 9 to achieve a straight line discharge between them. The firing electrodes are connected by capacitances C1 to C6 contained in the socket assembly receiving the lamp connection prongs (see Group XXXVI) to a choke 34 itself connected to the output of a step-up transformer 32 positively impulsed from trigger pulse generator 48 over half-wave diode 52 to indicate an arc discharge from electrode 9 to electrode 4 in a straight line on each pulse. Specification 875,953 is referred to.
Patent GB-412127-A (GB)
Title: Variable speed cutting mechanism
IPC: B26D5/22
Filed: 1933-12-28
Abstract: 412,127. Cutting corrugated board. SWIFT, G. W., 7, Ward Street, Bordentown, New Jersey, U.S.A. Dec. 28, 1933, No. 36460. Convention date, Jan. 3. [Class 31 (i).] Variable lengths of corrugated board strips are severed by two pairs of rotary cutters 35, 36, 77, 78, which at the moment of cutting have a peripheral speed equal to that of the web, this momentary speed being obtained by elliptical gearing 18, 19. The cutter blades of each pair project unequally, the smaller ones being arranged in the angle between the diverging webs, as shown in Fig. 3. The length severed is varied by changing the frequency of the cut relatively to the feed, and in'order to maintain the momentary peripheral speed of the cutters constant, an adjustable differential drive is provided between the elliptical gearing and the cutters. To change the frequency of the cuts and simultaneously automatically adjust the differential gear, the Reeves drive 10 is adjusted by a hand-operated worm shaft 44 which also actuates a chain 56, shaft 58, bevel gear 59, worm and worm wheel 30 internally gearing with the planet wheels of the differential gear. The relative positions of elliptical gear and cutters is thus changed to suit the altered frequency. This adjustment may be effected independently of the Reeves variable drive by removing the chain 56 and operating the shaft 58 by the hand wheel 58<a>. Preferably, the smaller cutter blade revolves twice for each revolution of the larger cutter ; with elliptical wheels each having the maximum radius twice the minimum, a variable speed ratio may be obtained by resetting the gear. Rotary adjustment of the cutters is effected by set screws 87 acting on a stud 86 projecting from a plate 83 which is keyed on the cutter shaft and is slotted to engage studs 85 on the gear wheel 34.
Patent GB-1037723-A (GB)
Title: Process for the production of polyurethanes
IPC: C08G18/50
Filed: 1964-09-07
Abstract: Elastic polyurethanes are prepared by forming a prepolymer by reacting a molar excess an organic diisocyanate with a dihydroxyl compound of formula <FORM:1037723/C3/1> wherein R1 is a divalent aliphatic, cycloaliphatic or araliphatic radical, R2 is a divalent aliphatic radical, R3 is a monovalent saturated or unsaturated aliphatic, cycloaliphatic or araliphatic radical and x is a number larger than 3, and the resulting prepolymer is reacted in solution in a polar organic solvent with a chain extender. The chain extender may be a glycol, diamine, aminoalcohol or hydrazide and the solvent may be dimethyl formamide, dimethyl acetamide, N-methyl pyrrolidone, dimethyl sulphoxide, methyl ethyl ketone, dioxan, tetrahydrofuran or chlorobenzene.  The dihydroxy compound can be produced by reacting 1 mol. of the bischloroformic acid ester of a polyether of formula H-(OR1)x-OH with 2 mols. of an amino alcohol HO-R2-NHR3 in aqueous organic medium.  In Example (1) the bischloroformic acid ester of polytetrahydrofuran was reacted with N-methyl ethanolamine and the product reacted with tolylene diisocyanate followed by diphenylmethane diisocyanate in chlorobenzene, and the prepolymer obtained thereby reacted with carbodihydrazide in dimethylformamide. The solution was pigmented with TiO2 and hexane 1,6-diisocyanate added.
Patent GB-628758-A (GB)
Title: Improvements in or relating to apparatus for drying or crystallisation by spraying
IPC: A23C1/04
Filed: 1946-12-11
Abstract: <PICT:0628758/III/1> Apparatus for drying or crystallizing comprises a chamber having at its lower part a gas inlet in its upper part a gas outlet, and therebetween a centrifugal sprayer for the material to be treated, characterized in that the vertical position of the sprayer can be adjusted throughout the whole distance between the gas inlet and outlet.  The dried or crystalline product collects at the bottom of the chamber.  The cylindrical chamber 1, which has a height equal to its diameter, is provided with one or more tangential air inlets 9 and an outlet 10 surrounded by a flange 12.  Mounted coaxially within the chamber is rotary sprayer 2 which is adjusted in height by screw-jack 8 so that the time of fall of the larger particles to the level of inlet 9 equals the time of rise of the smaller particles to the level of the air outlet.  The height of the inlet orifices may be regulated by means of obturators, and that of the outlet orifice by vertically displacing flange 12 relative to chamber 1.  The drying of milk, blood, and egg-white is referred to.
Patent GB-1517712-A (GB)
Title: Manufacture of netting
IPC: D04H3/04
Filed: 1974-08-20
Abstract: 1517712 Non-woven nets A BRAMLEY 14 Aug 1975 [20 Aug 1974] 36598/74 Heading D1R [Also in Division B5] A rectilinear net is formed by feeding a plurality of longitudinal threads 14 intermittently through two spaced extending rows of dies 20 for moulding material 18 about their intersections with two transverse threads 82 which are drawn across the longitudinal threads upstream and downstream respectively of the dies and moved in opposite directions into the dies 20. The longitudinal threads are fed by upstream and downstream grippers 16a adapted to move together between a stand gripping position (1) and a retracted position and a similar set of grippers 16b which are reciprocable from a position upstream of the grippers 16a to a downstream position. At the front end of the machine longitudinal threads 14 of thermoplastics which may contain metal filaments are fed through tensioners 12 and guides 132 by lower grippers 16a and upper grippers 16b working alternately (see Fig. 8). Two similar sets of grippers at the take-off end are operated in synchronism by shaft 162. The lower grippers 16a are operated by cylinders 158 and are mounted on a shaft 134 which is rotatable from the retracted position shown to the gripping position. Similarly the upper grippers 16b are operated by cylinders 148 and rotated on a beam 138. The upper grippers are moved along on a carriage 140 from upstream of the lower grippers to downstream (as shown) to advance the threads when the dies are open.  The transverse threads 82 are drawn across by grippers 84, Fig. 3, having jaws 102 and travelling on rails 90 and 92. The other end is held by a piston rod 130. The strand is gripped at both ends by further grippers 46 and cut by blade 122. The grippers 46 rotate on arms 44, Fig. 2, to bring the strands into the die halves 22-26. Material is injected into the closed dies from a cylinder 40 while the grippers 84 retract to beneath members 116 through which the threads pass. Slight movement of members 116 exposes the next end of the thread to the gripper jaws 102.
Patent GB-425564-A (GB)
Title: Improvements relating to the electrodes of electric discharge tubes
IPC: H01J17/00
Filed: 1933-12-30
Abstract: 425,564. Discharge devices. KILPATRICK & SON, Ltd., J., ORR, J., and FORREST, A. W., 16, Forbes Place, Paisley. Dec. 30, 1933, No. 36709. [Class 39 (i)] In a luminous discharge tube, a hollow insulating cylinder F, e.g. of mica, is fitted into the neck E of the electrode chamber B, and extends a short distance inside a hollow cylindrical electrode C, the cylinder and the electrode being so dimensioned that an annular space G exists therebetween, and the electrode is prevented from touching the glass wall. The diameter of the neck E may, or may not be, the same as that of the tube A. The filling consists of neon, argon or helium.
Patent GB-1223048-A (GB)
Title: A method of constructing or repairing refractory linings or lining bodies
IPC: C04B35/66
Filed: 1968-08-01
Abstract: 1,223,048. Magnesia refractory. VEITSCHER MAGNESITWERKE A.G. 1 Aug., 1968 [4 Aug., 1967], No. 36775/68. Heading C1A. [Also in Division F4] A refractory material having the following percentage composition by weight. Sintered magnesia 2À0-6À0 mm. 15%, 0-0À7 mm. 60%, 0-0À1 mm. 20%, disodium phosphate 5%, together with between 6 and 12%, preferably 10% of water is used to form a refractory lining or lining body or a repair for such a lining or lining body. A porous coating of the following composition, sintered magnesia 2À5-5À0 mm. 10%, 0-0À7 mm. 55%, 0-0À1 mm. 15%, sawdust 15%, disodium phosphate 5% is then applied to its top surface, the sawdust being burnt out to form the pores. Alternatively a foaming agent, a granular plastics material or an inorganic fibrous material may replace the sawdust. The pre-forming substances may comprise between 10 and 20% by weight of the coating mass.
Patent GB-850397-A (GB)
Title: Improvements in nozzles or like attachments for suction cleaners
IPC: A47L9/06
Filed: 1957-11-26
Abstract: 850,397. Vacuum cleaner nozzles. ELECTROLUX Ltd. Nov. 26, 1957 [Dec. 5, 1956], No. 36790/57. Class 8(1). Raising of a generally flat hard suction nozzle 15 from the operative position shown in Fig. 5, to the inoperative position shown in Fig. 4, accompanied by the relative lowering of a surrounding brush 14 from the inoperative to the operative position and vice versa is effected in response to rotation of both members 14, 15 about the axis of a horizontal portion 35 of a duct 16 connecting the nozzle to a source of suction. The nozzle 15 has an elongated mouth 28 bounded by skids 31 and has a centrally situated upwardly extending arched strap 29 in sliding engagement with the upper portions of the peripheral edges of front and rear end plates 32, 33, Fig. 7, of an eccentric 30 rotatably mounted on the horizontal cylindrical portion 35 of the duct 16 on which is also journalled at 23 the brush frame 17 surrounded by a housing 24. The front end plate 32 of the eccentric 30 is journalled on a pin 37 integral with the duct 35, and said plate 32 has a pinion 39 fixed thereto meshing with a pinion 43 freely supported on a pin 44, Fig. 3 (not shown), bridging opposite sides of a gear housing 22 fixed to the brush frame 17 and rotatably mounted on a screw bolt 41 of the pin 37. Integral with pinion 43 is a pinion 42 meshing with a pinion 40 fixed to the bolt 41 and hence to the pin 37. The gear ratios are so chosen that one complete revolution of the housing 24 and hence of the brush frame 17 and the nozzle 15 about the horizontal portion 35 of the duct 16 results in a half turn of the eccentric 30 and maximum vertical displacement of the nozzle relative to the brush.