baber/WOPTO huggingface dataset:
Patent GB-569650-A (GB)
Title: Improvements in machines for centrifuging liquids
IPC: B04B9/08
Filed: 1943-11-29
Abstract: 569,650. Clutches. TECALEMIT, Ltd., and LE CLAIR, C. C. S. Nov. 29, 1943, No. 19946. [Class 80 (ii)] [Also in Group II] A centrifugal bowl, such as is driven at varying high speeds by an aircraft engine, for cleansing lubricating oil, has a clutch which allows the driving means to overrun the bowl when the speed is accelerating, the bowl gradually picking up speed ; a further clutch is provided to allow the bowl to overrun its driving means when the latter is de-celerating. Various types of slipping clutches may be used. A centrifugal bowl 4 is driven from the engine cam-shaft through a hollow driving-shaft 5 having a gear-wheel 6, and is supported on a hollow spindle 9. Oil is supplied to the bowl from an engine pump by way of an inlet 11 and ports 12. The driving clutch for the bowl comprises a flange 14 and friction discs 15, 16 of fibre, fabric or the like. A " loose clutch " plate 17 may slide axially and runs on a flange 13 of the bearing 7. An upper " fixed clutch " plate 18 is arranged on the spindle 9 and carries a number of pins 19 which project through holes 20 in the plate 17. The pressure on the discs 15, 16, due to springs 21, may be varied by adjusting nuts 23. When the resistance to rotation exceeds a predetermined torque, the clutch will slip. The second clutch comprises a boss 24 having tapered notches 30 containing spring-pressed rollers 31 which drive a gearwheel 27 and thus the bowl 4. When the driving speed falls off suddenly, the rollers 31 no longer drive the bowl 4. The gear 27 meshes with a number of pinions 33 which are integral with, or attached to, gear-wheels 35. The latter drive a gear 36 on a sleeve 37 attached to the bowl 4. Cleaned oil spills over the edge of the rim 42 into the casing 1, and passes out through a port 3. Sludge is removed by a scoop 43 which is pivotable about a sludge outlet 44. When being used it occupies the dottedline position. The gear ratio of bowl to driving spindle 9 is preferably 4 : 1. The freewheel clutch 30, 31 may be incorporated within another member of the gear train, instead of in 27.
Patent GB-950182-A (GB)
Title: Improvements in and relating to electrical circuits employing transistor networks
Inventor: ANTOSZEWSKI EUGENIUSZ
IPC: H04M9/00
Filed: 1959-06-11
Abstract: 950,182. Protective arrangements. ENGLISH ELECTRIC CO. Ltd. June 9, 1960 [June 11, 1959], No. 20034/59. Heading H2K. [Also in Division H3] In a time-overcurrent relay circuit, a signal representative of the overcurrent is applied through a time delay network R1C to a transistor having a Zener diode D in its emitter circuit so that if the signal exceeds the breakdown voltage of the diode for more than a predetermined time the transistor conducts. The resulting voltage at the junction of collector load resistors R2 and R3 causes a transistor T2 of a trigger circuit T2, T3 to become conductive and so operate a relay A. Transistor T1 is of silicon type to make the circuit less sensitive to temperature variations.
Patent GB-237441-A (GB)
Title: Improvements in or relating to toothed gearing
IPC: F16H27/08
Filed: 1924-08-25
Abstract: 237,441. Hoyle, E. Aug. 25, 1924. Aeronautical apparatus.- Intermittent toothed gearing suitable for driving the film in the camera described in Specification 222,548 comprises a spring-restrained toothed segment 6 having limited angular movement with respect to a mutilated wheel 1, and adapted to mesh with a complete wheel 2, the teeth of the segment overlapping the teeth of the mutilated wheel so as to guide the complete wheel into mesh without shock. A pin 7 projects from the wheel 1 into a slot 8 in the segment 6, and the pin and slot determines the amount of the dwell in the gearing. When the pin is at either end of the slot, the teeth of the segment coincide with those of the mutilated wheel. If the complete wheel is driving, when is reaches the tooth gap, it moves the segment alone until the pin 7 reaches the other end of the slot. The segment then carries the teeth of the wheel 1 into mesh with the wheel 2. To aid the action, a friction drag may be inserted between the segment 6 and the wheel 1.
Patent GB-148187-A (GB)
Title: Improved method for producing upon the surface of textiles and other materials marbled effects
IPC: B05D1/20
Filed: 1920-07-09
Abstract: A film of a mixture of aniline dyestuffs is floated on the surface of a liquid in which the dyestuffs are not soluble, preferably by sprinkling with a brush, and is arranged in any desired patterns by means of a splinter of wood, a comb, &c.  A substance with which the dyes can become incorporated, such as fabrics, paper, leather and wood, is then applied to the surface of the liquid, so as to exclude air bubbles, and the dye adheres to it.  The most suitable dyes are those which are soluble in fats, e.g. the "cerotin colours" or mixtures of these with colour bases.  Solvent oil is the most suitable solvent for the dyes.  Specifications 19522/90 and 12564/08, [Class 93, Ornamenting], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) states that the process may be applied to sheet metal, the dyes being then dissolved in sapon varnish.  This subject-matter does not appear in the Specification as accepted.
Patent GB-221491-A (GB)
Title: Improvements in stuffing boxes for shafts, rods, and similar machine parts, particularly for the shafts of steam turbines
IPC: F01D11/00
Filed: 1924-08-26
Abstract: 221,491. Jabs, A. Sept. 3, 1923, [Convention date]. Packing, non-metallic; packing, metallic. - In packing for turbine &c. shafts of the type in which segments move in radial guides, the pressure on each segment is nearly balanced by means of recesses in the surfaces of the segment. A carbon segment 6, Fig. 5, has a recess 14 in its wearing surface, which terminates short of the lateral edges. The recess is connected by a passage or passages 11 with the space at the back of the segment. Axial pressure. is balanced by recesses 10, 17 in the front and back faces of the segment, terminating short of the lateral edges. The recess 17 may terminate short of the top edge of the segment and be connected by a passage 19 with the high-ppeseure side. Each segment may be formed with a flange 24, Fig. 8, sliding between flanges 22, 23 in the guide ring 1. The low-pressure surface of the flange is recessed at 34, and the back of the flange is connected by a passage 28 with a channel 30 in the working surface, formed by a bridge connecting the front and back portions 25, 26 of the segment. The full pressure is admitted to the back of the portion 25. The segments may also be acted on by light springs. Segments may be made of brass or bronze, or of iron or steel faced with brass or bronze. In this case the wearing surface is formed with circumferential ribs.
Patent GB-845218-A (GB)
Title: Improvements relating to helmets
Inventor: CAMPBELL MALCOLM ALEXANDER
IPC: A42B3/14
Filed: 1957-06-26
Abstract: 845,218. Helmets. CAMPBELL (PLASTICS) Ltd., W. June 17, 1958 [June 26, 1957], No. 20206/57. Class 63 A helmet comprises a hard outer shell in which a head cradle is secured by lacing or press fasteners and a retaining strap 5 shaped so as to extend to the back of the helmet. As shown the strap 5 is of non-irritating synthetic resin material and is made in two parts each of which is stitched to the head band 1. Fasteners 7 and holes 6 provide for adjustment of the strap 5. At least a part of the strap 5 may be of elastic material. Instead of being secured to the head band I, the strap 5 may be secured to the head straps 2.
Patent GB-1098977-A (GB)
Title: Production of ª‡-methylindoles
IPC: C07D209/08
Filed: 1965-05-13
Abstract: A process for the production of a -methyl indoles comprises reacting acetone with an aromatic hydrazine of general formula <FORM:1098977/C2/1> or a salt thereof, in which R denotes a hydrogen atom or an alkyl radical at elevated temperature in the presence of a strong mineral acid used as an acid condensing agent and in the presence of boric acid.  Suitable strong mineral acids are H2SO4, H3PO4 and HCl.  Boric acid is used in amounts of 1 to 20% by weight based on the amount of strong mineral acid used.
Patent GB-651674-A (GB)
Title: Improved apparatus for moulding pre-cast or in situ concrete and like blocks
IPC: E04G11/34
Filed: 1948-07-29
Abstract: 651,674. Moulds for concrete blocks &c. HAGGARD, J. G. R., HAGGARD, R. G. R., and DAWES, F. A. July 29,1948, No. 20231. [Class 87 (ii)] [Also in Group X] In moulding concrete and like blocks, a centre post member 10 has laterally-adjustable hinge brackets 13 attached thereto and cooperates with end-plates 15 laterally adjustable in grooves 14 in the sides of the post member. The hinge brackets support side-plates 21 which are cross-connected by a link 23 so that they open and shut together. In moulding hollow blocks a core 40 is bolted to the centre post. Blocks of different thicknesses may be made, which are symmetric about the centre post or not, according to whether the hinge brackets are equally or unequally spaced from the centre post. When moulding the end block of a wall, a closure plate 24 is engaged on the ends of the side walls, and in moulding corner blocks, supplementary corner plates, 28, 29, 35, Fig. 6, are used. Specification 628,480 is referred to.
Patent GB-202628-A (GB)
IPC: B63H25/38
Filed: 1923-08-08
Abstract: 202,628. Naamlooze Vennootschap Flettner's Scheepsroer Maatschappij, (Assignees of Deutsche Werft Akt.-Ges.). Aug. 21, 1922, [Convention date]. Steering-gear; rudders. -In rudders wherein the main rudder is actuated by the current resulting from actuation of one or more auxiliary rudders and in which a coupling direction-governor gear is fitted, the coupling comprises two links on the actuating shaft with rollers on the free ends moving over cam surfaces on the main rudder head. The freely mounted rudder post 1 of the main rudder carries a gear box 4 on which is in turn freely mounted the fixed box 6 carrying the worm 8 and worm-wheel 9 of the actuating gear for the auxiliary rudder 21. On the shaft 10 of the worm wheel 9 is a disc 11 with cam surfaces 12, 13, against which bear rollers 15, 16 on levers on a shaft 17. Arms on the auxiliary rudder shaft 2 are coupled to arms on the shaft 17 by links 18. Ordinary steering is effected from the worm 8. Should the main rudder swing from the desired position since the worm gear is irreversible the auxiliary rudder will be swung automatically by the governor gear into a position for correcting the main rudder.
Patent GB-280637-A (GB)
Title: The manufacture of new dyestuffs of the anthracene series
IPC: C09B1/30
Filed: 1926-08-17
Abstract: 280,637. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Aug. 17, 1926. Anthraquinone dyes.-Dyestuffs are produced by the interaction of alkyl or aralkyl amines upon 1 - amino - 4 - halogen-2-anthraquinone sulphonic acids in the presence of a catalyst such as copper or copper compound. According to examples, 1 amino-4-brom-2-anthraquinonesulphonic acid is condensed with N-butylamine and also with benzylamine using copper sulphate as the catalyst. The dyestuffs dye wool clear greenishblue and reddish-blue shades.
Patent GB-733847-A (GB)
Title: Improvements in and relating to couplings
IPC: B62D27/02
Filed: 1951-08-25
Abstract: 733,847. Rods and tube joints. SPARSHATT, G. W. Sept. 17, 1952 [Aug. 25, 1951], No. 20359/54. Divided out of 723,876, [Group XXXII]. Class 99 (1). [Also in Group XXXII] A coupling for rods or tubes comprises a bearer member 1x apertured to receive crosstubes 2x which are split at 5x so they may be clamped and welded to the rods or tubes which pass partly or completely through the crosstubes. The bearer member may be secured to a base-plate 6x provided with bolt holes 7x. Specifications 607,281 and 682,507, [Group XXXII], are referred to.
Patent GB-1269629-A (GB)
Title: Improvements in or relating to signal recording and/or playback apparatus
Inventor: AHY JAHANGIR MADJIDI
IPC: E01C23/09
Filed: 1968-04-30
Abstract: 1,269,629. Recording/playback apparatus. J. M. AHY. 29 April, 1969 [30 April, 1968 (2)], Nos. 20507/68 and 20509/68. Heading G5R. In a record/playback apparatus employing a wide band record and a plurality of heads rendered operative in turn and driven when inoperative to change tracks, means are provided to ensure that the heads stop over a track. As described, a belt record is loaded to the machine double-wound on a spool and is fed into a random-storage bin by counter-rollers 21, 22 belt-driven from a motor energized by operation of a " load " button. Increased tension in the tape is sensed by roller 24 to disengage drive via sprocket 24a, release the load button and de-energize the motor. A separate "start" button serves to drive the rollers 21, 22 in the same sense to feed the tape past the heads, each one of which is arranged as shown and co-operates with a separate area of the record. Foil contacts 159 at the end of each track are sensed 160 to energize an appropriate solenoid 141, 142 and thereby engage a constantly rotating roller 137 with either disc 135 or 136 to rotate feedscrew 131 co-operating with head carriage 29. A cam 156 and follower 155 operate a switch 154 to ensure that the head stops over a track position. Separate pushbuttons are provided to energize a selected solenoid 141, 142 for back- and forward-spacing. The heads may be driven via magnetic clutches or they may be engaged with a track-changing feedscrew only when disengaged from the record. Auxiliary features.-The roller 24a carries a sprocket 166 to drive a counter indicating the position of the head along a track and automatically reset when the foil 159 is sensed. A track indicator 169 is cord-driven by the head carriage 29 and is mounted on the same shaft as a wheel 175 for manual track changing. The speed with which the heads are shifted may be adjusted by altering in unit 138a the length of the shaft 138 driving roller 137. A separating tape may be driven with the record to prevent the coated sides from meeting. The record may be end-to-end and automatically reversed at each end (not detailed).
Patent GB-1504001-A (GB)
Title: Apparatus for determining the properties of movement of anobject
IPC: G02B27/44
Filed: 1975-05-15
Abstract: 1504001 Measuring displacement photoelectrically ERNST LEITZ WETZLAR GmbH 15 May 1975 [6 June 1974] 20540/75 Heading G1A In displacement measuring apparatus, rays l -1 , l +1  diffracted by a first optical element 1 are recombined by a penultimate one 2 of a plurality of elements so as to form an interference pattern at a final element 3, whereby photo-electric means (not shown) may provide phase-separated signals representing relative displacement of at least one optical element relative to the others. The spacing e between two elements, the diffraction constant d of at least one of them and the wavelenght # and bandwidth ## of the light, are so related that disturbances due to an adjacent diffraction order, e.g. l 0  are substantially avoided without the need of a diaphragm to obstruct the adjacent order. The relationship is calculated from is a symmetry factor, equal to 2 in the embodiment, where three equally-spaced elements are used. The overlap factor K is the ratio of the actual difference in path length between the orders l 0  and l -1  (or l +1 ) to the coherence length l c  of the light, given by Under ideal conditions K would be not less than 1; but for practical purposes, where the apparatus is required to be compact, the disturbance due to the lo order may be tolerable even for values of K of less than 1. In an alternative embodiment, Fig. 2, the penultimate optical element comprises a pair of mirrors.
Patent GB-357664-A (GB)
Title: Improvements in or relating to luffing jib cranes
IPC: B66C23/10
Filed: 1930-07-07
Abstract: 357,664. Jib cranes; winding- apparatus. SANTAMARINA, P., 126, Calle Libertad, Valencia, Spain. July 7, 1930, No. 20581. [Classes 78 (iv) and 78 (v).] A level luffing jib crane has the hoisting rope passing over a system of four pulleys, one mounted in guides and controlled by a pivoted rod, to secure a horizontal movement of the load. The hoisting rope J passes from the jib-head pulley T over a pulley A mounted on the rear end of the jib then over a pulley B mounted on the rotary crane structure L, over a pulley C having rollers running in a guide D<1> and over a pulley on the axis of the pulley B to the winch W. The movements of the pulley C are controlled by a rod D mounted on a pivot Q on a strut N on the crane structure. To ensure a uniform winding of the hoisting rope on the winding drum, the drum B Fig. 4, is splined on an inner drum A<1> and has nuts H engaging a screwed spindle E mounted on the inner drum and carrying a pinion G engaging a non-rotating spur wheel I. As the drum B rotates it is traversed along the inner drum by the screwed spindle E.
Patent GB-674850-A (GB)
Title: Method and device for representing the structure of objects, particularly histological specimens
IPC: G02B21/36
Filed: 1948-08-04
Abstract: 674,850. Microscopy. STEFFEN, C. Aug. 4, 1948 [June 10, 1947; Oct. 9, 1947], Nos. 20609/48 and 20610/48. Classes 97 (i) and 98 (i). To illustrate the structure of a microscopic specimen successive sections are taken from the specimen and photomicrographs taken on successive frames of a film, intended to be projected kinematographically, in such a way that prints in the sections lying in the original object on lines perpendicular to the section planes are similarly located in the film frames. The specimen is preferably first embedded in a transparent mass and, before sectioning, pinholes are made through the mass in directions perpendicular to the proposed section planes. The pinholes in the separate sections are similarly registered when photographing. In the apparatus shown the specimens are mounted on a carrier 15 on a stage 14 adjustable perpendicularly to the optical axis and illuminated by the lamp 18 through condenser 16 and diaphragm 17. The microscope eyepiece is in a tube 2 attached to a casing 3 having a side portion 4 with viewing screen 5 on which an image may be formed through a lens 8 by light reflected from the movable mirror 6. Movable indices 7 assist positioning the sections in conjunction with the images of the reference pin-holes. The casing 9 contains spools and feed mechanism for the kinematograph film 10 on which an image is formed by the lens 11 with shutter 10a. The tube 12, with microscope objective 13, the stage 14, condenser 16, diaphragm 17 and the lamp 18 are separately axially adjustable and are also axially adjustable as a unit, relatively to the remainder of the apparatus, by the screw 19.
Patent GB-845861-A (GB)
Title: Improvements in or relating to the manufacture of alkyd resins
Inventor: ARMITAGE FRANK
IPC: C09D167/08
Filed: 1955-07-15
Abstract: Water-dispersible oil-modified alkyd resins are prepared by reacting (i) a poly-oxyalkylene glycol having an average M.W. of 200-6,000, (ii) a different polyhydric alcohol, (iii) a polycarboxylic acid, and (iv) a drying oil, a drying oil fatty acid, and/or a partial polyhydric alcohol ester thereof. Component (iv) may be copolymerized with an ethytlenically unsaturated monomer (v) before, during, or after the esterification.  Components specified are: (i) polyethylene and polypropylene glycols, including a mixture of the former; (ii) pentaerythritol, mannitol, sorbitol, and glycerine; (iii) succinic, glutaric, phthalic and terephthalic; (iv) linseed, dehydrated castor, tung, soya bean, oiticica, cottonseed, perilla, sesame, peanut, sunflower seed, poppy seed and hemp seed; (v) vinyl acetate, styrene, vinyl toluenes, vinyl naphthalene, acenaphthalene, a -methyl styrene chloromethyl styrene, p-chloro-or fluoro-styrene, acrylonitrile, methyl methacrylate and the alkylesters or nitriles of acrylic, methacrylic or chloroacrylic acids.  Optional additives include: TiO2, talc, lithopone, china clay, litharge, the mono-butyl ether of a polyethylene glycol of M.W. 1400; morpholine, xylene, n-propyl alcohol, hexylene-glycol mono-ethyl and mono-butyl ethers and the acetates thereof, dicthyleneglycol mono- and di-ethyl and butyl ethers, ethylene glycol phenyl and benzyl ethers, diacetone alcohol and di-methoxy tetraglycol, sodium alkyl sulphate where the alkyl group is essentially C12; Co, Pb or Mn linoleates, NH3 or NaOH. There are several examples, including comparative experiments with the teachings of U.S.A. Specification 2,634,245 in which component (iv) is reacted with the reaction product of components (i), (ii) and (iii).  Use Water-based paints.
Patent GB-771275-A (GB)
Title: Improvements in cold plates used in refrigeration
Inventor: KLEIST HERMAN W
IPC: F25D3/00
Filed: 1955-07-19
Abstract: 771,275. Cold accumulators. DOLE REFRIGERATING CO. July 19, 1955, No. 20937/55. Class 29. A refrigerator cold plate comprises a coil 5 enclosed within the body of a hollow gas tight plate, and having refrigerant inlet and outlet fittings 6 and 7 respectively with an alternative fitting 6a connected by a tubular passage 6c to one of. said fittings, preferably the inlet fitting 6, together with means for closing either of the two inlet fittings 6 or 6a. The fittings 6 are used when the plates are used in series and on end, while fittings 6a are used when the plates are laid sideways.
Patent GB-209499-A (GB)
Abstract: 209,499. Smith, B. V. Oct. 12, 1922. Spring devices; saddles.-In a motor-cycle, a pneumatic buffer comprising a tubular india-rubber body 1, Fig. 1, formed with beaded edges 3 adapted to be secured in recesses in outer end plates 5 by inner plates 4, is applied between a plate or lug 24, Fig. 3, at the top of the spring fork 23 and an extension 25 of the lower of the two levers 21, 22 which connect the fork to the steering-tube 20. In a cycle saddle, two such buffers are used between the frame and the rear of the seat.
Patent GB-824668-A (GB)
Title: Method of lamination of plastic film and foam and the product therefrom
IPC: B32B27/00
Filed: 1956-07-06
Abstract: Compositions containing, in stated proportions, polyvinyl chloride and:  (a) Dioctyl phthalate, barium ricinoleate, titanium dioxide and cadmium ricinoleate; or  (b) Tricresyl phosphate, cadmium ricinoleate and benzene-sulphonic acid hydrazide; or  (c) Butyl benzyl phthalate, dioctyl phthalate, dibasic lead phosphite, phthalocyanine green pigment and xylene; or  (d) Tricresyl phosphate, basic lead sulphate, methyl abietate, substituted aromatic hydrocarbons and benzene-sulphonic acid hydrazide are sheeted and laminated with a preformed layer of polyester-diisocyanate foam (see Group VIII). Specification 810,095, [Group VIII] is referred to.
Patent GB-1002515-A (GB)
Title: Multiple-way valve
IPC: F16K27/02
Filed: 1962-05-31
Abstract: 1,002,515. Valves. ULUSUNDA VERK STADER A.B. May 31, 1962 [June 1, 1961], No. 20975/62. Heading F2V. A valve controlling the flow between a fluid pressure channel 12, a motor channel 14 and an exhaust channel 16 comprises a valve body 24 reciprocable in a bore and provided with closure surfaces 36, 38 which co-operate with valve seats 32, 34. Portions 40, 42 extend axially from the closure faces and have small radial clearance, of the order of a few hundredths of a millimeter, with the bore 18. The axial length of the portions is such that with the valve body in an intermediate position at least one of these portions provides a substantial degree of interruption between the high pressure and discharge channels 12, 16 to prevent pressure loss.