baber/WOPTO huggingface dataset:
Patent GB-296009-A (GB)
Title: Improvements in or relating to self-centering chucks
IPC: B23B31/163
Filed: 1928-08-22
Abstract: 296,009. Forkardt, P. Aug. 22, 1927, [Convention date]. Chucks. - In a selfcentring chuck wherein the jaws are actuated by bell-crank levers, the pivots of the levers are mounted in housings which can be pushed radially out of the chuck without dismantling the latter. Such adjustment may be for the purpose of changing the jaws or for varying the range of the chuck. The chuck body a has radially sliding jaws b provided with recesses e engaged by two teeth on bell-crank levers c. Gripping is effected by axial displacement of a plunger f, preferably by means of a pneumatic piston. The pivots d of the levers are mounted in housings g which are radially adjustable in the, body a by rotation of a ring h, the ring being provided with a continuous spiral cam k engaging teeth on the housings or by separate cam slots or projections engaging teeth or recesses respectively in the housings.
Patent GB-379100-A (GB)
Title: Improvements relating to apparatus for the electrical reproduction of sound
IPC: H04R11/08
Filed: 1931-08-28
Abstract: 379,100. Supporting gramophone pick-ups. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, AULT, L. B., 172, Allesley Old Road, and ROBINSON, T. F., 6, Dane Road, Stoke, both in Coventry. Aug. 28, 1931, No. 24278. Addition to 310,284, [Class 40 (iv), Telephones &c.], and 373,158, [Group XXXIX]. Drawings to Specification. [Class 40 (ii).] The housing of a gramophone pick-up is made integral with its supporting arm.
Patent GB-1091281-A (GB)
Title: Improvements in vehicle supporting and propelling members
Inventor: DRAKEFORD GEORGE EDWARD
IPC: B60C5/18
Filed: 1963-06-19
Abstract: 1,091,281. Vehicle wheels; endless-tracks. DUNLOP RUBBER CO. Ltd. June 8, 1964 [June 19, 1963], No. 24306/63. Headings B7C and B7H. A vehicle wheel or endless-track comprises separately-inflatable annular ground-contacting elements spaced around the outer peripheral surface of an endless inextensible supporting element with their axes normal to that surface. In one embodiment tubed or tubeless pneumatic tyres 4 detachably secured by elements 12 around a wheel rim 2 each have one sidewall 7 adjacent the rim, the other sidewall being extended to form a tread surface 10. The elements 12 may be annular and aligned with holes 14 in the rim to allow self-clearing of earth accumulated therein, or closed at their radially outer faces by discs (15) (Fig. 3, not shown) to serve as a temporary tread in the event of a puncture. In a second embodiment (Figs. 6, 7, not shown) an endless-track comprises pneumatic tyres similarly attached to rigid slats (21) hinged together by links (21a): In other embodiments illustrated but not claimed, the inflatable elements each have a triangular, square, rectangular or polygonal ground-contacting surface.
Patent GB-1014337-A (GB)
Title: Improvements in or relating to textile machines
Inventor: GALLINA KURT
IPC: D01H7/32
Filed: 1964-06-11
Abstract: 1,014,337. Textile flyer. C. EUGEN MAIER METALLVERARBEITUNG G. m. b. H. June 11, 1964, No.24337/64. Heading D1D. A textile flyer having a hollow leg 2 on which rotatably mounted a presser 1 has a part-annular guide member 6 of wear resisting material associated with the lower end of the hollow arm. The guide member is preferably mounted on the presser 1 and may as shown form one of the bearings by which the presser 1 is located. Only the guide member or the guide member and presser needs to be replaced when the guide member becomes worn. A slit is formed in the guide member to permit threading up.
Patent GB-480161-A (GB)
Title: Improvements in and relating to rolling mills
IPC: B21B27/10
Filed: 1937-09-06
Abstract: 480,161. Rolling - mills. HERAEUS VACUUMSCHMELZE AKT.-GES. Sept. 6, 1937, Nos. 24340 and 24341. Convention dates, Oct. 5, 1936 and Nov. 6, 1936. [Class 83 (iv)] In a mill with small rolls A backed by groups of support rollers C, D where coolant from the usual perforated pipes and felts L cannot reach enclosed spaces such as c and f, these spaces are cooled by fluid pumped in by a short pipe E at each end of the spaces, so that it flows partly through and back to the respective end from which it came through a longer pipe F or vice versa. The pipe F is provided with slots H to distribute the coolant as it flows back, the slots being partially masked to the extent desired, e.g. by a concentric rotatable per, forated sleeve, or another arrangement of slots may be masked by a sleeve which can be adjusted axially. The adjustment of the coolant flow may be made to give the desired degree of convexity to the rolls. The supply pressure may be different for different spaces, those near the rolls having a higher pressure.
Patent GB-653887-A (GB)
Title: Optical apparatus for determining the distribution of the refractive index in a medium
IPC: G01B9/02
Filed: 1948-09-16
Abstract: 653,887. Optical apparatus. STAUB, H., and LABHART, H. Sept. 16, 1948, No. 24364. Convention date, May 31. [A Specification is laid open to inspection under Sect. 91 of the Acts, March 17, 1949.] [Class 97 (i)] In apparatus for determining by interference the distribution of refractive index in a non-homogeneous medium and comprising a plane - parallel transparent plate arranged obliquely to a collimated monochromatic light beam, to divide the latter into two separated beams, one of which passes through a cell adapted to contain the medium, a second plane parallel plate is arranged behind the cell perpendicular to the beams, the front face of which plate reflects one of the beams and the rear face the other, so that one beam returns through the cell, and the two beams are superposed at the first plate to form a combined beam producing interference effects. As shown in Fig. 2, the collimated beam A is divided by the plate P into beams A<SP>1</SP>, A<SP>2</SP>, directed towards the second plate F which, in this case, is formed with a cell Z for the medium. Mirrors F<SP>1</SP>, F<SP>2</SP> return the beams to the plate P to form a combined beam W. A portion F<SP>3</SP> of the plate P may be rendered reflecting. Alternatively the cell Z may be located between the plates P and F. The Specification as open to inspection under Sect. 91 of the Acts describes also modifications in which the mirrors F<SP>1</SP>, F<SP>2</SP> are mounted on a single block or are coplanar, a transparent medium being inserted in one beam to equalize the optical paths. Alternatively one beam may be reflected by the plate P and the other transmitted, mirrors being provided to return the beams to the plate P. The modification shown in Fig. 1 (Cancelled), comprises a collimator L<SP>1</SP> and a vertical slit B<SP>1</SP> producing a narrow monochromatic beam divided by a plate P<SP>1</SP> into beams S<SP>1</SP>, S<SP>2</SP>, one passing through a control cell Z<SP>2</SP> and the other through a cell Z<SP>1</SP> containing the medium under test. A diaphragm B<SP>2</SP> allows the beams S1<SP>1</SP>, S1<SP>2</SP> recombined by a plate P<SP>2</SP> to be focused by lenses L<SP>2</SP>, L<SP>3</SP> on to a photographic plate P. This subject-matter does not appear in the Specification as accepted.
Patent GB-1075920-A (GB)
Title: Process and means for carrying out column chromatography on liquids on a large scale
IPC: G01N30/60
Filed: 1966-06-01
Abstract: 1,075,920. Chromatography columns. C. F. BOEHRINGER & SOEHNE G.m.b.H. June 1, 1966 [June 3, 1965], No. 24449/66. Heading B1X. In carrying out large scale chromatography on liquids, the liquid flowing axially through the column is radially mixed at at least one point in the column. As shown in Fig. 1, each device affecting radial mixing may comprise two sieve plates 1, the lower one being separated by spacer 5 from a mixing plate 3 having a single orifice. The two sieve plates may be held together in such spaced relationship by means of a central screw or a series of peripheral screws or by the use of clips or by cementing or welding together. The plate 3 may alternatively be plane (Fig. 1a, not shown) or dished on both sides (Fig. 1b, not shown). A gasket 4 is provided to locate the arrangement in the column. If the column filling swells, the gasket should be such as to permit movement of the arrangement in accordance therewith but without allowing the eluting fluid and filling particles, to pass. In this case, the gasket may be squeezed or compressed by the screw or screws holding the assembly together, to form a seal with the wall of the column. Meshes 2 are provided on the sides of sieve plates 1 adjacent to the bed. The mixing plate 3 may be replaced by a mixing device which is a stirrer driven mechanically or magnetically, a vibrator or an ultrasonic device. The holes in the sieve plate may be at an angle to the axes thereof.
Patent GB-400754-A (GB)
Title: A rubbing-down attachment for portable electric grinding machines
IPC: B24D9/04
Filed: 1932-11-08
Abstract: 400,754. Grinding and polishing. HAIGH, J., 6, Hird Street, Shipley, Yorkshire. Nov. 8, 1932, No. 24461. [Class 60.] Wheels.-A rubbing-down attachment for portable electric grinding-machines consists of an aluminium shaft G screwed at H to receive a nut, and having thereon an undercut head K and a loose cup D, which engage the reduced ends of a rubbing-down tool ; the shaft is internally threaded at J for attachment to the shaft of the portable grinding-machine. The tool comprises an axially divided core covered with felt &c. over which is placed a strip of abrasive paper, the ends of the paper being turned in between the parts of the core and engaged by prongs on one of the parts.
Patent GB-1034307-A (GB)
Title: Production of diamine salts of dicarboxylic acids
Inventor: BRIERLEY CHARLES
IPC: C08G69/28
Filed: 1964-06-12
Abstract: Salts of a diamine with a dicarboxylic acid are prepared by mixing solutions of the two components in an alcoholic medium, and filtering or centrifuging the resulting salt, the alcoholic medium consisting at least partly of the water liquors recovered from a previous operation, if required after treatment with carbon. Specified solvents are methyl, ethyl and isopropyl alcohol. Hexamethylenediamine adipate is specified as amine salt.  The products may be polymerized (see Division C3).ALSO:Fibre-forming polyamides, e.g. polyhexamethylene adipamide, are obtained by heating the diamine dicarboxylate salt prepared by mixing solutions of a diamine and a dicarboxylic acid in an alcoholic medium which is at least in part, e.g. 50-95%, recycled mother liquor after removal of a previous batch of amine salt (see Division C2).  The salt may be formed at 20-60 DEG  C., filtered off and the mother liquor treated with carbon before reuse.  Alcohols specified are MeOH, EtOH and iso-PrOH and may contain up to 15% water.
Patent GB-184083-A (GB)
Title: A governor for controlling an electric motor or other prime mover for operating a pump to supply and maintain pressure in a hydraulic system
IPC: B63B19/00
Filed: 1921-09-15
Abstract: 184,083. Stone & Co., Ltd., J., and Watkins, W. P. Sept. 15, 1921. Fluid goveruors. - An apparatus for controlling the motor driving a pump, in order to maintain constant pressure in a hydraulic system of the two main type in which the mains are alternately open to pressure and exhaust, comprises a plunger u connected to the motor control z and sliding in a cylinder m in connection with the mains through pipes b, c and a valve chamber d in which is a valve i engaging one of the seats k, g and thereby serving to open the high-pressure main and close the low-pressure main to the plunger. The plunger, controlled by a spring v, passes through a stuffing-box o, n in the cylinder, and is attached to the motor controller by the lever y.
Patent GB-1055904-A (GB)
Title: An adjustable double-ended spanner
IPC: B25B13/10
Filed: 1964-06-12
Abstract: 1,055,904. Wrenches. K. MAICHEN. June 12, 1964 [June 14, 1963; Dec. 5, 1963; April 9, 1964], No. 24617/64. Heading B4W. A double-ended spanner has a handle composed of two relatively slidable longitudinal members 1<SP>1</SP>, 1<SP>11</SP>, means being provided whereby the members may be secured in adjusted position, one of the members having an opening as at 4 providing nut engaging flats as at 6<SP>1</SP> and the end of the other member nearest the flats 6<SP>1</SP> having opposing counter flats 6<SP>11</SP>. The member 1<SP>11</SP> is slidably arranged between the flanges 2 of the U-section member 1<SP>1</SP>. A plate 20 is pivotally and eccentrically mounted in the middle of the member 1<SP>1</SP> on a bolt 22, the hub of the bolt passing through a longitudinal guide slot 24 in the sliding member 1<SP>11</SP>. The plate 20 has an even number of notches 21 arranged at different distances from the axis of rotation of the plate and in diametrically opposed pairs engaged in two projecting lugs 23 spaced longitudinally on the member 1<SP>11</SP>. The bolt 22 is provided at its free end with a leaf spring 26 which bears on the base of a recess 27 in the handle 1. The spanner is adjusted by lifting the plate 20 against the force of the spring 26 and rotating the disc. In a modification, Figs. 4 and 5 (not shown), a pair of laterally projecting jaws are provided at one end of the handle. The plate 20 has stop faces 21 arranged diametrically in pairs, the distance between each two opposite faces of a pair being less than the distance between the stop faces 23 to allow the disc 20 to be rotated without impedance by the stops.
Patent GB-673912-A (GB)
Title: Improvements in jaw crushers
IPC: B02C1/02
Filed: 1949-09-26
Abstract: 673,912. Utilizing inertia in machinery. LINKE, G. Sept. 26, 1949 [Oct. 1, 1948], No. 24663/49. Class 80 (iv). [Also in Groups II and XXV] A jaw crusher has two pivoted crusher jaws 2 maintained in oscillation by rotating wheels 6 mounted on the free ends of the jaws, which wheels are provided with unbalance weights displaced 180 degrees in phase relative to each other. The jaws 2 are mounted on pivots 3 within a casing 4 and supported by springs 5. The casing 4 may be suspended by springs 23 and be provided with suitably chosen weights 24 to counteract torsional oscillations of the casing 4. The wheels 6 may be driven through gears and couplings by one electric motor or by individual synchronised electric motors which may be mounted on the jaws. Torsion rod springs 17 are mounted within hollow pivots 3 of each jaw, each rod spring 17 being fixed at one end within the pivot 3 by a jamming roller 19 and at the other end to the jaw housing 4 by a jamming roller 18. A spring lever 20 fixed to the pivot 3 by a jamming roller 21 oscillates between two rubber buffers 22 fixed to the jaw housing 4. In a modification two oppositely rotating wheels are mounted on each jaw. In the Specification as open to inspection under Sect. 91, unbalanced wheels may be mounted on the crusher jaw pivots or on extensions of each crusher jaw beyond its pivot, the unbalance weights being 180 degrees out of phase with those at the free ends of the crusher jaws. This subject-matter does not appear in the Specification as accepted.
Patent GB-751695-A (GB)
Title: Electric pulse communication system
IPC: H04J3/04
Filed: 1954-08-25
Abstract: 751,695. Multiplex pulse signalling. STANDARD TELEPHONES & CABLES, Ltd. (Federal Telecommunication Laboratories, Inc.). Aug. 25, 1954, No. 24692/54. Class 40 (5). A common " co-mod " unit modulates a train of channel pulses and demodulates a train of modulated pulses, representing an associated channel, in the intervals between the pulses which it modulates. A two-way timedivision multiplex system is described in which the received marker pulses time the out-going channel pulses and the received channel pulses are all delayed before application to said common unit for demodulation. Thus the marker pulses M, Fig. 1, of the pulse train 2 at the output of the receiver 1 are separated by circuit 7 to control a pulse generator 8 which, through a tapped delay device 10, provides the unmodulated channel pulse trains and a marker pulse for transmission, through generator 9. Each unmodulated channel train is fed to a co-mod unit such as 4, fed also from a modulating source 5. Each pulse train thus modulated and the new marker pulse from generator 9 are mixed in circuit 11 to form the train 12 and fed to the transmitter 13. The received pulses are all delayed in circuit 3 and fed to all the co-mod units such as 4 which select and demodulate the appropriate channel pulses, the demodulated signal being fed to utilization circuit 6. The co-mod circuit comprises a multivibrator having valves 15, 19, Fig. 2, with a common cathode resistance 23, the anode of valve 15 being coupled to the grid of valve 19 through a time-constant circuit 14. Valve 15 is normally non-conducting and valve 19 conducting. When a positive unmodulated triangular channel pulse 30 is applied to the grid of valve 15, together with the audio modulating voltage from transformer 40, the multivibrator is triggered at a time depending on the audio voltage. The resulting voltage drop at the anode of valve 19 causes a ringing circuit 36, 37, shunted by a rectifier 39 to produce the time-modulated channel pulse 38 for transmission. The pulse 33 at the anode of valve 15 is terminated when the corresponding received time-modulated pulse, after differentiation in circuit 44, is applied to the grid of valve 19 to render it conducting again. Hence 'the output of the transformer 42 in the anode circuit of valve 15 contains the demodulated audio signal. A desirable amount of side-tone is inherently present in the circuit and crosstalk between the outgoing and incoming channels is present, but as the channels are associated, this will not occur unless both users speak simultaneously.
Patent GB-1436716-A (GB)
Title: Brushless dc motors
IPC: H02K29/08
Filed: 1973-05-23
Abstract: 1436716 Electric motors PAPST-MOTOREN KG 23 May 1973 [25 May 1972 7 Sept 1972 27 Oct 1972] 24706/73 Heading H2A In a brushless D.C. motor comprising a permanently magnetised rotor 26 and a substantially flat air gap in which is disposed at least one flat stator coil which interacts with the rotor to produce an intermittent electromagnetic torque, the stator is provided with at least one ferromagnetic member which co-acts with the rotor to produce an auxiliary torque which supplements the gaps in the electromagnetic torque. The motors disclosed are axial air gap motors with axially magnetised rotor magnets 18, 19 disposed on opposite sides of two stator coils 11, 12, the current through which is commutated in dependence on the output of Hall plate 42. The ferromagnetic member in the stator shown comprises an array of ferromagnetic pins 45, 45<SP>1</SP>, 45<SP>11</SP> mounted on insulating stator base plate 10 and so formed that the reluctance torque produced by the interaction of the pins and rotor magnets is mirror symmetrical with the electromagnetic torque, so that the resultant motor torque is substantially uniform. A variety of forms of the ferromagnetic stator member, in addition to the form shown, are disclosed.
Patent GB-649680-A (GB)
Title: Manufacture of oxidation products from olefinic compounds
IPC: C07C47/00
Filed: 1948-09-22
Abstract: Olefinic compounds are oxidized to aldehydes, ketones, esters and cyclopropanes by heating with nitrous oxide at 200-400 DEG  C. and above 20, generally 100-500 atmos., cooling, and releasing the pressure.  Olefins give aldehydes and ketones having the same number of carbon atoms, olefins having a terminal double bond yielding aldehydes, except in the case of isoolefins which yield cyclopropanes and ketones.  Olefinic ethers wherein oxygen is attached to doubly bound carbon may yield esters, e.g. 2,3-dihydropyran gives d -valerolactone, and vinyl ethers give a formic ester and a cyclopropyl ether.  Ketene acetals yield carbonic esters and cyclopropanes.  The presence of oxidation catalysts is optional. Solvents and diluents, e.g. saturated hydrocarbons or tertiary bases such as dimethylaniline and pyridine, may be used.  Initial compounds specified include olefins, chlor-olefins, cyclo-olefins, di- and polyolefins, olefinic ethers and esters, dihydrofurans, N-vinylphthalimide and vinyl sulphides.  Batch or continuous operation may be used, in the latter case proportions preferably being 1 volume nitrous oxide to 1 volume olefinic compound or olefinic compound and diluent.  In examples: (1) cyclohexene is heated to 300 DEG  C. with nitrous oxide which is pumped in to a pressure of 500 atm., cyclohexanone being distilled from the product after release of pressure; (2) propylene similarly gives propionaldehyde, temperature being 250 DEG  C.; (3) isobutene is similarly heated with nitrous oxide, the products cooled and blown off through traps in liquid air, nitrous oxide allowed to evaporate, and the residue distilled to give 1,1-dimethylcyclopropane; (4) methylenecyclohexane is similarly oxidized to cyclohexanone and 2,5-spiro-octane; (5) 2,3-dihydropyran gives d -valerolactone; (6) 1-chlor-1-propene yields monochloracetone; (7) 2,4,4-trimethyl-pentene-1 gives 4,4-dimethyl-pentan-2-one and 1-methyl-1-neopentylcyclopropane; (8) 2,4,4-trimethylpentene-2 gives 2,4,4-trimethylpentan-3-one and 2,5-dimethyl-2,4-hexadiene gives isopropyl isobutenyl ketone; (9) vinyl n-butyl ether yields n-butyl formate and an azeotrope of n-butyl acetate and cyclopropyl n-butyl ether; (10) 1,1 - bis - p - methoxyphenylethylene treated in light petroleum gives p,p1-dimethoxy-benzophenone and 1,1-bis-p-methoxyphenylcyclopropane; (11) acenaphthylene in cyclohexane yields acenaphthenone; (12) cyclohexene and dimethylaniline yield cyclohexanone.
Patent GB-223042-A (GB)
Title: Improvements in rotary drying apparatus
IPC: E01C19/05
Filed: 1923-10-05
Abstract: 223,042. Gettings, S. S., and Bodman, W. L. Oct. 5, 1923. Continuous-discharge apparatus, rotary; driving mechanism, applications of.- Apparatus for drying road materials comprises an enclosed rotary perforated cylinder a which is supported by two or more chains c engaging with sprockets secured to the cylinder and with an overhead shaft f. The material is fed into the cylinder through a hopper m and passes through it in counter-current to hot gases from a furnace k ; the dried material being discharged through the shoot p, while the gases pass away through the stack i. The parts of the surface of the cylinder adjacent to the chains are imparforate. In a modification, the furnace is arranged at the material discharge end of the apparatus.
Patent GB-664479-A (GB)
Title: Improvements in methods of broaching and broaching tools
Inventor: POYNTER CYRIL EDWARD
IPC: B23D43/00
Filed: 1949-09-30
Abstract: 664,479. Broaching; tools. WEATHERLEY OILGEAR, Ltd. July 27, 1950 [Sept. 30, 1949], No. 25093/49. Class 83 (iii). In a method of broaching a work-piece in which the cutting-edges of the broach are substantially at right angles to the direction of the working stroke of the machine, a gap or gaps in the cutting-edges leave a rib or ribs of metal which are removed by means of one or more shearing-tools. In the form shown, the ribs left by the gaps 12 between the broaching-teeth 10 extend the full length of the work-piece and are removed by the shearing-tool 15. The shearing-tool may be separate from the broaching-tool. In another form, the gaps in the broach teeth, which may be staggered relatively to each other, are inclined to the cutting-edges of the teeth so that the edges of the gaps act as shearing-tools, the ribs in this case being sheared off as they are formed. Other broaches of conventional type serve for roughing and finishing operations.
Patent GB-466395-A (GB)
Title: An improved horse-drawn vehicle
IPC: B60P1/06
Filed: 1936-09-16
Abstract: 466,395. Road vehicles. HEYWOOD, J. H. Sept. 16, 1936, No. 25179. [Class 108 (i)] A horse-drawn vehicle comprises a two-wheeled tip cart provided with interchangeable rubber-tyred wheels wholly disposed below the floor of the vehicle and also having portable removable sides and rear end. The cart comprises bearers a<1> supporting a floor a and having brackets d for the rubber tyred wheels f. The cart is provided with shafts c, a front board h removable sides k, corner posts and rear flap l.