baber/WOPTO huggingface dataset:
Patent GB-1256315-A (GB)
Title: Improvements in or relating to apparatus for screeding concrete
Inventor: KALNS ARVID
IPC: E01C19/42
Filed: 1970-06-26
Abstract: 1,256,315. Concrete screeding apparatus. A. KALNS. 26 June, 1970, No. 31096/70. Heading E1G. In concrete screeding apparatus the concrete surface is engaged by the peripheries of a series of wobble rings 17 spaced concentrically along a power-driven shaft 14 carried by a frame which may be mounted for manual or power-driven movement along side form rails 41, each wobble ring being fixed at an inclination to the shaft axis by a diametral spoke 18. As shown the frame comprises a beam 10 having at each end a trapezium plate 11 and base plate 12 provided with adjustable guide members 42, and each end of the shaft 14 is chain driven from the oppositely-directed output shafts 27 of a hydraulic motor 25 powered by an engine 30 and remotely controlled by a handle 35. The upper and rear portions of the wobble rings are covered by an angularly-adjustable arcuate guard plate 44. (For Figures see next column)
Patent GB-228672-A (GB)
Title: Improvements in or relating to fountain or reservoir pens
IPC: B43K5/04
Filed: 1923-12-11
Abstract: 228,672. Livsey, W. Dec. 11, 1923. Reservoir pens.-An actuating-unit for compressing the sac of a self-filling fountain pen, and adapted to he held by friction in the barrel, comprises a strip b of spring material bent to fit the barrel, a presser-bar c pivoted to the strip, a second strip f connected to the first strip, and an operating-lever g for the presser-bar pivoted to the strip f so as to avoid pivotal connection to the barrel. The lever g is pivoted to the strip f by a pin h which projects on each side of the lever to prevent it from moving out of the slot a' in the barrel a. The pivotal connection e between the presser bar c and strip b serves as a stop for the end of the lever g. In a modification, the end of the strip f is bent so that the fulcrum for the lever g is raised to increase accessibility, the ends of the pin h in this case not projecting beyond the end of the lever g.
Patent GB-780377-A (GB)
Title: Improvements in and relating to sine and cosine motion devices
IPC: G06G3/00
Filed: 1955-10-31
Abstract: 780,377. Converting rotary into oscillating motion. LINK AVIATION, Inc. Oct. 31, 1955 [Oct. 29, 1954], No. 31126/55. Class 80 (1). Mechanism for obtaining an angular output movement corresponding to the sine or cosine of a rotary input comprises the combination of an epicyclic train for deriving a simple harmonic motion and an involute cam device for converting the simple harmonic motion into a sinusoidal rotary motion. The epicyclic train comprises a pair of planet gears 26 mounted upon pins 25 set at 90 degrees apart upon a carrier gear 17 rotatably supported by a housing 19, 19. The gears 26 mesh with internal gear rings 23, 23 fixed to the housing 19. The gears 26 are half the diameter of the rings 23 so that pins 27 on the pitch circles of the planet move across diameters of the gears 23 with simple harmonic motion on the carrier gear 17 being rotated. This motion of the pins 27 is converted into a sine and cosine motion respectively of cam plates 28 about pivots 29 by the engagement of the pins 27 in involute slots 30 in the plates 28<SP>1</SP>. The output motion may be transmitted through gearing to a plurality of shafts to operate potentiometers in banks of electrical equipment. Two of the above devices may be arranged in series so as to obtain sine squared or cosine squared functions.
Patent GB-825655-A (GB)
Title: Improvements in or relating to false-twist spindles
Inventor: WARD ALEC WINSTON
IPC: D02G1/06
Filed: 1956-10-12
Abstract: 825,655. Turbines. BRITISH CELANESE Ltd. Oct.10, 1957 [Oct. 12, 1956], No. 31147/56. Class 110 (3). [Also in Groups IX and XXXIV] A false-twisting spindle (see Group IX), comprises a rotor in the form of a hollow spindle having external vanes against which compressed air is directed by a stator to rotate the rotor therewithin; the stator is mounted on trunnions so that it can readily be inverted in order to reverse thereby the the direction of rotation of the spindle. As shown, a rotor 6 comprises blades or vanes 7 and a tube 8 pressed therein and engaging bearings 4 to support the rotor within a casing 3; trunnions 11, 12 are carried by bearings in a bracket 14 secured, as one of a series of spindles, to a machine frame. Compressed air is supplied through a tube 16 extending through trunnion 11 and communicating with a passage 17. Trunnion 11 carries a gland 18 enabling casing 3 to be rotated, between two positions located by a spring-loaded ball 19 engaging dimples 21, independently of tube 16. Air escapes mainly through apertures 22 and partly through bearings 4 and apertures 23. Oil may be supplied to the air before it reaches trunnion 11 so that it passes through bearings 4 in the form of a mist to lubricate them and/or the escaping air may form a cushion which acts as a bearing medium. Specification 790,128, [Group IX], is referred to.
Patent GB-741032-A (GB)
Title: Improvements in self starters for internal combustion engines
IPC: F02N15/06
Filed: 1953-11-11
Abstract: 741,032. Turning-gear. CAMPBELL, R. May 18, 1954 [Nov. 11, 1953], No. 31202/53. Class 7(5) In an engine starter comprising a pinion 3 slidably mounted on splined startermotor shaft 1 for axial movement into mesh with the engine flywheel 5 by means of a rod 4 passing through the shaft 1, means, such as a lever 12, for operating the rod 4 being on one side of the motor and the pinion 3 being on the other side, the lever 12 also acting to start the motor,-- the pinion has an axial extension 9 on the, side remote from the motor which forms, an abutment for a first spring 11 coupling the pinion to the rod. Upon pulling the rod against a second spring 6, located around the rod 4 and enclosed between a disc 7 and a recessed part of the rod bore, the pinion 3 is meshed with the flywheel 5. The disc 7, which is slidable within the extension 9, is normally held against a circlip 10 in the outer end of the extension by the spring 11 that assists in meshing the pinion with the flywheel teeth and in overcoming tooth abutment therebetween. Upon actuating a cable 15, the rod 4 is moved in the pinion-engaging direction by the lever 12 and, at the same time the motor switch 17 is closed. If the pinion is mounted upon helical splines the pitch thereof is such as to urge the pinion toward the flywheel when the motor rotates, an abutment 22 on the shaft forming a stop for the pinion; the rod is released when the engine starts so that the spring 6 and helical splines return the pinion to the inoperative position. In a modification, the rod is moved by a solenoid energized upon closing the starter switch, the soft iron core of which is mounted on the rod that also incorporates a spring-loaded motor-switch contactbridge; the solenoid and operating gear may be housed in an enlarged end of the shaft. According to the Provisional Specification the rod is connected by a ball-joint to a cap engaged over the inner end of the shaft and fixed to the pinion.
Patent GB-1442613-A (GB)
Title: Immobilized enzymes process and intermediates therefor
IPC: C12N11/08
Filed: 1973-06-29
Abstract: 1442613 Insolubilized enzymes PFIZER Inc 29 June 1973 [12 July 1972 6 Dec 1972] 31218/73 Headings C3H and C3P An immobilized enzyme is prepared by contacting the enzyme with a polymerizable, ethylenically unsaturated monomer containing a reactive group and then polymerizing or copolymerizing the enzyme-monomer product in the presence of a cross-linking agent and an initiator, and the monomer employed has the formula wherein R 1  is hydrogen, methyl or chloro, and W is -COR 2 , -SO 2 CL or p-(chlorosulphonyl) phenyl; R 2  being either (A) hydroxy, halide, azido, 2,3-epoxypropoxy, 2,3-epithiopropoxy, N-(2,3-epoxypropyl) amino, aeryloyloxy, lower alkoxy carbonyloxy, benzene-sulphonyloxy or N - [(p - diazonium chloride) phenyl] amino, or (B) -X-(Y-X<SP>1</SP>) n -Z wherein each of X and X<SP>1</SP> is -O- or -NR 3 , R 3  being hydrogen or C 1 -C 6  alkyl, Y is C 2  or C 3  alkylene, n is 1 or 2, and Z is hydrogen, or Z<SP>1</SP> where Z<SP>1</SP> is haloacetyl, 2 - (4,6 - dichloro) - s - triazinyl, p - tolueriesulphonyl (X<SP>1</SP> being -O-) or p-(halomethyl) benzoyl. When R 2  is hydroxy and when Z is H the ethylenically unsaturated monomer is first activated by reaction with a carboxylic group activating reagent and with a compound of formula halogen-Z<SP>1</SP>, respectively. Enzymes: penicillin acylase, glucose oxidase, urease, amyloglucosidase, fumarase, subtilopeptidase A from Bacillus suhtilis ATCC 21839 and L- aspartase from Enterobacter aerogenes ATCC 9760. According to the examples the enzyme is to be attached to the following monomers: trichlorotriazine-activated hydroxyethyl methacrylate, bromoacetyl bromide-activated hydroxyethyl methacrylate, diimide-activated hydroxyethyl methacrylate, acrylic acid and monomers conforming to the alternatives (B) in the general formula, methacryloyl chloride, methacryloyl azide, mixed anhydride of methacrylic acid and ethyl chloroformate, benzene sulphonate ester-methacrylic acid mixed anhydride, diazonium chloride of N-(p-aminophenyl) methacrylamide, p-chlorosulphonyl styrene, vinyl sulphonyl chloride, glycidyl methacrylate and 2,3-epithiopropyl methacrylate or N-(2,3-epoxypropyl) methacrylamide. The following co-monomers are given; N,N<SP>1</SP>-methylene bis-acrylamide, methyl methacrylate, acrylamide, ethylene glycol dimethacrylate, N,N<SP>1</SP>- diethylaminoethyl methacrylate, N,N<SP>1</SP>-dimethyl acrylamide, neopentyl glycol dimethacrylate, methoxyethyl methacrylate, divinyl benzene and styrene.
Patent GB-505748-A (GB)
Title: Improvements in propelling pencils
IPC: B43K21/08
Filed: 1937-11-16
Abstract: 505,748. Pencil holders. BERRY, F. W. Nov. 16, 1937, No. 31253/36. [Class 146 (iii)] In a pencil holder having lead-projecting mechanism, a guide 1 for receiving the lead is mounted at the front end of the barrel 3 and is slit to form a multi-tongued grip for the lead, each tongue having a sharp edge contacting with the lead near the front end, and each slit increasing in width away from the point to afford greater resiliency to the tongues. The rear end of a propeller 9, slidable in the guide and barrel, is gripped by the jaws 11 of a chuck 10 under the influence of a ring 15 held in place by a sleeve 13 screwing on to the end of the chuck and serving also to retain a pocket-clip 14. The chuck screws into the rear end of the barrel to feed forward the propeller and lead. In modifications, (a) the propeller screws directly into the barrel and is provided with an operating-head projecting from the barrel ; (b) the guide forms the holder, and the propeller is provided with an operating- head, on which may be carried a golfer's tee, or is engaged by a cap screwing on to the rear end of the guide.
Patent GB-463536-A (GB)
Title: Improvements in or relating to means for propelling ships and other vessels
IPC: B63H21/30
Filed: 1936-11-16
Abstract: 463,536. Propulsion plant for ships. FRANCOIS CEMENTATION CO., Ltd. Nov. 16, 1936, No. 31288. Convention date, Sept. 12. [Class 122 (iii)] [Also in Group XXXIII] The complete propulsion plant for ships including the engines, transmission and mounting of the propellers is combined and mounted on a structure rigid in itself which in turn is resiliently mounted in the hull. A frame 4 is supported in the hull of a ship 5 through springs 6 and it carries the engine 3, the transmission shaft 2 and the hub portion of a propeller 1, the blades of which rotate about a vertical axis. In another form, the shaft of the engine drives two transverse shafts 2, each coupled to a propeller. The plant accessories such as pumps, compressors, and dynamos are carried by the same frame 4.
Patent GB-1472566-A (GB)
Title: Electrostatic separation of pyrites from raw coal
IPC: B03B1/04
Filed: 1974-07-15
Abstract: 1472566 Separating pyrites KALI UND SALZ AG 15 July 1974 31335/74 Heading C5G Pyrites is electrostatically separated from raw coal at a temperature from ambient temperature up to 100‹ C. by mixing crushed raw coal with a conditioning agent comprising glycerides of a saturated or unsaturated aliphatic monocarboxylic acid containing 14-24 carbon atoms for from 10 seconds to 30 minutes, and then subjecting to electrostatic separation at a relative humidity of 2À5 to 20% into a coal concentrate, a residue containing the major proportion of the pyrites and a medium grade material which is recycled back to the mixing step. The conditioning agent may be a mono-, di-, or tri-glycerine ester of stearic acid, palmitic acid, oleic acid, linoleic acid or linolenic acid. In examples, the use of edible oil, bone oil, groundnut oil, olive oil, glyceride of oleic acid, poppyseed oil, sunflower oil, castor oil, monoolein, monostearin, tripalonitrin, and tristearin is referred to.
Patent GB-1378605-A (GB)
Title: Derivatives of dihydrodigoxin
IPC: C07J19/00
Filed: 1973-07-02
Abstract: 1378605 Dihydrodigbxin derivatives BOEHRINGER MANNHEIM GmbH 2 July 1973 [6 July 1972] 31432/73 Heading C2U The invention comprises 20,22-dihydrodigoxin derivatives of formula  (wherein one of R 1  and R 2  is Me or Et and the other is H, Me, Et or acetyl, and R 3  is H or acetyl); and their preparation (a) by catalytic hydrogenation of the corresponding 20(22)- cardenolides; or (b) by alkylation of the corresponding compounds in which at least one of R 1  and R 2  is hydrogen, or (c) by acetylation of the corresponding compounds in which R<SP>3</SP> and one of R<SP>1</SP> and R<SP>2</SP> are hydrogen. Digoxin 3<SP>111</SP>-methyl ether, 4<SP>111</SP>-methyl ether, 4<SP>111</SP>-ethyl ether, 3<SP>111</SP>,4<SP>111</SP>-dimethyl ether, and 4<SP>111</SP>- methyl ether 12-acetate are prepared from digoxin by alkylation followed where necessary by acetylation. Cardioactive compositions for oral and parenteral administration comprise a compound I and a carrier.
Patent GB-324909-A (GB)
Title: Improvements in respirators and the like
IPC: A62B18/00
Filed: 1928-10-30
Abstract: 324,909. Sadd, J. A., Oct. 30, 1928. Respirators. - Gas masks, in which the inhaled air passes through filtering material b, are provided with a mouthpiece d, a funnel shaped member surrounding the nose and mouth, or other device such that the air can be drawn directly into the lungs, and with means whereby the exhaled air passes into the space between the mask and the face, forming a non-toxic gas-cushion which prevents the ingress of poisonous gases. The means shown comprises a non-return valve f in the filter-box a, a similar valve e being provided in the inlet passage of the box. The mask may be of metal or flexible material and may be provided with ordinary eyepieces, wiped by rotary wipers or by a fold in the mask, or with slits k or gauze or like screens. The filter-box a is provided with a baffle g forming a saliva trap, and may be supported on the head and connected with the mouthpiece by a tube or passage. The exhaled gases may escape from the mask around the edges thereof or through a valve provided therein. The mask may be made wholly or partly to envelope the head, the skirt being tucked into the collar of the jacket.
Patent GB-336980-A (GB)
Title: Improvements in or relating to the manufacture of transparent celluloid
IPC: C08L1/18
Filed: 1928-10-30
Abstract: 336,980. Schering-Kahlbaum Akt.- Ges. Oct. 5, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cellulose and like compositions.-Transparent celluloid which is stable to light is formed by incorporating with the usual ingredients a substance capable of combining with oxygen compounds of nitrogen to form colourless non- injurious compounds. Ammonia derivatives such as urea, urethane, or ethylurethane are suitable. In an example a celluloid is made byincorporating 22.5 parts of natural camphor, 70 parts of nitrocellulose, 2.5 parts of castor oil and 1 part of urea.
Patent GB-1521407-A (GB)
Title: Method for finishing articles of leather
IPC: B68F1/00
Filed: 1976-07-29
Abstract: 1521407 Treating leather and simulated leather articles R TOSI 29 July 1976 [29 July 1975] 31627/76 Heading B2E A method for finishing the edges of articles of leather and simulated leather in which the edge to be finished is coated with a layer of a thermoplastic adhesive of a preselected thickness and the adhesive is allowed to set. A dyestuff or pigment is added to the adhesive.
Patent GB-507559-A (GB)
Title: Improvements relating to electric chokes or voltage transformers
IPC: H01F30/10
Filed: 1937-11-17
Abstract: 507,559. Transformers and inductances. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 17, 1937, No. 31665. Convention date, Nov. 27, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 18, 1938.] [Class 38 (ii)] In a high voltage transformer or choke the windings and core are divided into a number of sections 1, 4, Fig. 1, separated by insulation 2, and the end yoke parts 3 each comprise two layers having vertical laminations arranged in planes mutually at right-angles. Each winding section 1 is connected at 7 to its adjacent core section. The Specification as open to inspection under Sect. 91 comprised also the arrangement shown in Fig. 6 (Cancelled) in which the winding sections 1 are mounted on an insulating cylinder 2 this subject-matter does not appear in the Specification as accepted.
Patent GB-736032-A (GB)
Title: Axial flow compressors
Inventor: PENN ALFRED JOHN
IPC: F04D19/02
Filed: 1952-12-15
Abstract: 736,032. Axial-flow compressors; gas turbine plant. NAPIER & SON, Ltd., D. Dec. 4, 1953 [Dec. 15, 1952], No. 31746/52. Classes 110 (1) and 110 (3). [Also in Group XXIV] In a multi-stage axial-flow compressor, a part of the rotor which carries blades of the earlier stages is mounted so that it is capable of rotating independently of another part of the rotor which carries blades of the later stages and to which the drive is imparted, and a disengageable coupling is provided for connecting the rotor parts together. Fig. 1 shows an axialflow compressor forming part of a gas turbine plant and comprising high-pressure rotor blading 15 fixed to a shaft 14 and low-pressure rotor blading 17 fixed to a sleeve 16 which is freely rotatable on the shaft 14. During starting or part-load operation the blading 17 is inoperative, and is either allowed to idle or is held stationary by means of a brake comprising shoes 30, Fig. 2, which engage a drum 28 keyed to the sleeve 16. When the shaft 14 has reached a sufficient speed, the brake is released and the flow of air through the blading 17 rotates the sleeve 16. When the sleeve 16 is rotating fast enough, it is connected to the shaft 14 by means of a clutch comprising friction cones 20, 21 splined to the shaft 14 and movable against the action of springs 22, 23 to engage a complementary member 26 carried by the sleeve 16. The movement is effected by a fluid under pressure admitted from the hollow centre of the shaft 14 through a passage 27 to the space between the cones 20, 21. For automatic operation, the fluid may be at a pressure which is a function of the speed of rotation and may, for instance, be air at the compressor delivery pressure or oil supplied by a centrifugal pump. Guide vanes 12, 13 may be angularly adjusted during the transition between the two modes of operation. Fig. 3 shows a modification in which the clutch is of the centrifugal type, comprising weights 34 which slide in radial slots in a disc 32 keyed to the shaft 14 to engage an annular member 31 carried by the sleeve 16. The brake comprises an annular face-cam 39 having ramp surfaces 40 co-operating with fixed projections 41 so that rotation of the face-cam 39 produces an axial movement by which an annulus 36 is pressed against the action of a spring 38 into frictional engagement with the member 31. The annulus 36 is restrained against rotation by splines 36a. According to the Provisional Specification, the clutch or the brake, or each of them, has a positive locking device which comes into operation when the clutch or brake is moved into the engaged condition.
Patent GB-391383-A (GB)
Title: Improvements in or relating to disintegrators
IPC: B02C19/20
Filed: 1932-11-12
Abstract: 391,383. Rasping or disintegrating foodstuffs &c. AESCHBACH AKT.-GES., F., 20, Industriesstrasse, Aarau, Switzerland. Nov. 12, 1932, No. 32043. Convention date, Nov. 28, 1931. [Class 59.] A disintegrating or rasping plate 2 is supported between the teeth by spiral ribs 15. As shown in Fig. 4, the rasping plate 2 is provided with a series of stabbed holes in spiral formation and the supporting member for the plate comprises a spiral rib 15 connected to a central boss 12 and an outer ring 13 by radial ribs 14 which do not touch the underside of the plate. The rib 15 is arranged between adjacent stabbings. In a modification the stabbed plate is secured to a disc having perforations in register with those on the plate. The holes in the disc may be conical or the rear edge only of the hole 19, Fig. 8, may be enlarged.
Patent GB-303253-A (GB)
Title: Improvements in or relating to thermoelectrically-operated devices for the protection of rotary machines
IPC: H02K11/00
Filed: 1927-11-29
Abstract: 303,253. Electrical Improvements, Ltd., and Poynder, H. B. Nov. 29, 1927. Indicators and alarms, applications of; protective and safety devices, auxiliary.-In a thermoelectrically-operated device for the protection of rotary machines, the hot and cold junctions of thermo-couples, their connections and a relay all rotate with the machine. As shown applied to a dynamo electric machine, for example, an alternator, the leads B from the hot junctions embedded in the rotor windings are brought out through the hollow shaft A and are connected to the cold junctions C bound around a relay electromagnet D mounted on a flange E secured to the shaft. The magnet is in series with the thermocouples and controls a disc armature G mounted on a stem F<1> carried by light corrugated discs F. A spider H carries a central insulating ring H<1> and a pair of contacts J, J<1> connected to slip rings K, K', and when the armature is attracted, spring arms M<1> are flexed by the insulating ring H<1> to connect with contacts J, J<1> whereby the slip rings are short-circuited and an external tripping and alarm circuit is energized. The movement of the armature is controlled by a spring G<1>, and in order to compensate for varying temperature of the cold junctions and for the temperature coefficient of the magnet winding the spring G<1> may be anchored to a bi-metallic strip N carried by a plate N<2>. The plate N<2> is also provided with a central screwed ring 0 bearing against a flange F<2> on the stem F<1> and acting as an adjustable stop. For ensuring that the device operates only at or above a predetermined speed a centrifugally operated stop may be provided which at a predetermined speed moves out of the path of the armature. The normal overspeed device may be mounted within the relay casing and may be adapted to actuate the stop and may be arranged to short-circuit the same slip rings as the relay, or a third slip-ring may be added to provide for two separate tripping circuits.