baber/WOPTO huggingface dataset:
Patent GB-208819-A (GB)
Title: A new or improved automatic mouse and rat trap
IPC: A01M23/18
Filed: 1922-10-04
Abstract: 208,819. Hoorn, A. van, and Goodchild, S. Oct. 4, 1922. Animal traps. - A continuous-action trap for rats &c. comprises a platform A pivoted at A<1> and counterbalanced at A<2> so that normally the upper end C of this platform rests against the lower end of a baitbox B attached to the roof of the trap, thus dividing the inner chamber F from the entrance. When a rat treads on the upper part of the platform and depresses it a link E pulls the door D downwardly about its pivot D<1> to close the entrance to the trap, and when the rat &c. passes into the chamber F the weight A<2> restores the door D and platform A to the normal positions shown in Fig. 1.
Patent GB-959483-A (GB)
Title: Improvements in or relating to electric oscillator circuits
Inventor: BOULTON PETER GORDON
IPC: H02M7/515
Filed: 1961-07-25
Abstract: 959,483. Pulse modulation circuits. GENERAL ELECTRIC CO. Ltd. July 25, 1962 [July 25, 1961], No. 26893/61. Heading H4L. [Also in Division H2] In a transistor blocking oscillator circuit in which the frequency of operation is determined by a resistance-capacity timing circuit, the resistance of the timing circuit is connected in parallel with the emitter-collector path of a transistor the effective resistance of which may be varied by the application if a control voltage to its base electrode whereby the frequency of oscillation may be varied. In the circuit shown the blocking oscillator 1 drives an inverter circuit comprising semi-conductor controlled rectifiers 4, 5 through the intermediary of a bi-stable trigger circuit 6 comprising two reciprocally - coupled transistors, the inverter output being supplied to energize an alternating-current motor 3. During starting, the heavy surge of current through transformer 11 produces an increased rectified negative voltage across capacitor 31 and so increases the negative bias on the transistor 36 which is connected in parallel with the resistor 23 of the timing circuit 23, 24, thus increasing the frequency of oscillation of the oscillator 1 whereby the inverter is better able to supply the initial heavy load current to the motor 3.
Patent GB-480028-A (GB)
Title: Improvements in the seating of water craft
IPC: B63B3/00
Filed: 1936-10-05
Abstract: 480,028. Boat seats. MACKENZIE, M. Oct. 5, 1936, No. 26942. [Class 113 (ii)] A boat is provided with a central longitudinal seat D supported on a transverse support C which is cut away at its top edge on each side of the seat. The seat may be incorporated in buoyancy tanks or the centre board trunk or may carry control gear.
Patent GB-1097730-A (GB)
Title: Improvements in gas bearings
Inventor: DEE WILLIAM COLIN
IPC: F16C27/00
Filed: 1965-06-25
Abstract: 1,097,730. Bearings. AEROSTATIC Ltd. June 15, 1966 [June 25, 1965], No. 26988/65. Heading F2A. [Also in Division F1] A rotor - shaft 2, Fig. 1, carries a turbine 3 at one end and a compressor 4 at the other end, and is supported in a chamber 5 of a stator - housing 1 by two axially - spaced bearing assemblies 6. Each of the latter is resiliently mounted in a radial direction on a pair of metal rings 7, the cross-section of the metal rings being S-shaped. The shaft 2 has a pair of sleeves 8 mounted thereon and a fluid radial bearing clearance 9 is formed between each sleeve 8 and a bearing assembly 6. Pressurized gas is fed to the clearances 9 through a port 10 on the housing 1; through channels 11 to the chamber 5; and through radial passages 12, longitudinal bores 13 and radial slots 14 in each bearing assembly 6. A thrustdisc 15, having a number of radial passages 16 therein is mounted centrally on the shaft 2 and clearances 17 and 18 are provided between the disc 15 and the assemblies 6. The clearances 17 and 18 are fed with compressed gas from annular slots 19, supply-channels 20 and the bores 13 in the assemblies 6. The disc 15 is provided with apertures 21 which are in alignment with the bearing clearances 9 and connect to the radial passages 16, this allowing the escape of exhausted gas from the clearances 9. The radial passages 16 also connect to passages 22, Fig. 2, in the shaft to allow the cooling thereof by atmosphere air which is drawn therethrough by the rotating disc 15. The sleeves 8 and the disc 15 may be made of stainless steel and the radial and thrust bearing components may be made of ceramic silicon nitride. The disc 15 may be provided with selfpressurizing arcuate grooves.
Patent GB-698497-A (GB)
Title: Improvements in fluid control valves
IPC: F16K31/122
Filed: 1950-11-06
Abstract: 698,497. Valves. BRITISH THOMSON-HOUSTON CO., Ltd., WILD & CO., Ltd., M. B., BATTY, A. W. H., and LIDDIARD, A. H. C., and McVEIGH, E. M. C., [Representatives of LIDDIARD, H. W. C.]. Sept. 27, 1951 [Nov. 6, 1950], No. 27062/50. Class 135 A throttle valve applicable to braking control systems for unbalanced winders as described in Specification 691,982, [Group XXXIV], has a ported sleeve 2 concentric with the housing 1, a slidable, cylindrical valve member 3 urged away from the ports 8 in the sleeve by a spring 10 and in a direction to close the ports by pressure fluid admitted to an annular piston 4 through a connection 6, a second connection 7 being vented to atmosphere, and a rotary disc valve member 9 controlling ports 14 in an end wall of the sleeve 2. The disc 9 is adjusted by a screw 15 with a lock nut 17. According to the position of the member 3 fluid entering the valve through an inlet 11 passes either through the ports 8 and 14 in parallel or through the ports 14 only. The inlet 11 serves as a capacity which is filled before the throttling action commences.
Patent GB-680507-A (GB)
Title: Improvements relating to cranes
IPC: B66C23/84
Filed: 1950-11-06
Abstract: 680,507. Cranes. LIEBHERR, H. Nov. 6, 1950. [Nov. 10, 1949] No. 27075/50. Class 78 (iv). A revolving tower crane provided with a step bearing and runners engaging with an annular flange to guide the rotary movements of the tower has the non-rotating undercarriage projecting into the rotary column. A bogie 4, Fig. 1, has wheels 2, 3 running on a track 1. An annular flange 5 secured to the bogie 4 has gear teeth 6 on its outer surface. A carrier 8 is secured to the bogie 4 centrally of the flange 5. The bogie 4 and carrier 8 comprise the undercarriage of the crane. A rotary column 9 is disposed with its axis centrally of the flange 5, the column carries four runners 10 which engage the inner surface 7 of the flange 5 during rotation. A platform 11 is mounted on the column 9 above the flange 5 and carries lifting and rotating driving mechanism. A step bearing 12 supports column 9 on the undercarriage and comprises two seating members 13, 14, Fig. 2, between which a bearing member 15 is disposed. The member 13 is fitted in the top of the carrier 8 and the member 14 is held between two channel section beams 16, 17 enclosed between frame members 18 of column 9. The bearing member 15 is disposed in a recess in the seating 13 whereas the seating member 14 has a flange 19 surrounding the upper part of the member 15 so that an annular space 20 is left to allow lateral play. A bolt and nut secure the step members together. In a modified form, the bearing member comprises a sphere and the bolt and nut are dispensed with. The seating members are spaced apart by a small amount.
Patent GB-667230-A (GB)
Title: Improvements in or relating to the manufacture of insulated electric cables
Inventor: SCOTT THOMAS ROBERTSON
IPC: H01B9/06
Filed: 1949-10-21
Abstract: 667,230. Electric cables. STANDARD TELEPHONES & CABLES, Ltd. Oct. 20, 1950[Oct. 21, 1949], No. 27090/49. Class 36. An electric cable comprising one or more conductors 1 insulated with expandible dielectric and located within an outer sheath 2 is manufactured by applying the dielectric to the conductor in the unexpanded state, the outer surface of the insulation being provided with a plurality of spacing members, then applying the sheath and expanding the insulation to fill the spaces within the sheath. The spacing members 4 may be integral with the insulation 3, Fig. 1A, or separate spacing members 5, Fig. 2A, of metal or a hard non-metallic material may be used. After the insulation has been expanded to cellular form the core may be subjected to gas pressure so that the gas will diffuse through the membranes separating the cells, whereby a desired gas pressure may be obtained in all the cells. Longitudinal ducts may be provided within the cable for this purpose, either in the form of tubes embedded in the dielectric, or the spaces left by the withdrawal of spacers 5 may be utilized. If tubes are used they have perforated walls, or are made of a material through which the gas can diffuse. When the gas pressure has reached the desired value throughout the dielectric the ends of the ducts may be sealed, or the ducts filled with a fluid which subsequently solidifies, as by polymerization. The cable sheath may be of metal, such as lead or aluminium, or of an impervious non-metallic material.
Patent GB-852883-A (GB)
Title: A new antibiotic tennecetin and processes of producing it
IPC: C12P19/62
Filed: 1958-08-25
Abstract: An antibiotic tennecetin is produced by culturing a tennecetin producing strain of Streptomyces chaltanoogensis e.g. S. chaltanoogensis A.T.C.C. 13358 in an aqueous nutrient medium containing an assimilable source of nitrogen, glycerol or a carbohydrate such as dextrin, galactose or inositol capable of promoting the production of tennecetin, under surface or submerged conditions.  The temperature is 25 to 28 DEG C., the duration 60 to 72 hours and the pH 7,0 to 4,0 for submerged culture.  A suitable medium contains glycerol, phytone, peptone, <PICT:0852883/IV(b)/1> <PICT:0852883/IV(b)/2> beef extracts, yeast extract and water, buffered at pH 7,0 with calcium carbonate.  Tennecetin is isolated from the clarified broth by extraction with a water-immiscible solvent such as n-butanol or isobutanol the extract concentrated and a non-solvent such as ether added to precipitate the antibiotic.  The precipitate is taken up in water or methanol and acetone added to precipitate the antibiotic.  Tennecetin is a tetraene substance effective against yeast, fungi, borynebacterium diphthericae and Pseudomonas tobaci ; soluble in water, methanol, 95% ethanol, 70% isopropanol and n-butanol ; insoluble in chloroform, ethyl acetate, ether and petroleum ether ; heat stable, insensitive to light and non-toxic to animals ; methanolic solutions displaying maximum absorption of ultraviolet light at 288 mm , 300-302 mm  and 315-318 mm  (Fig. 2) and exhibiting absorption bands in the infra-red region of the spectrum at the following wave lengths expressed in microns 3,0, 3,4, 6,0, 6,3, 9,5, 9,9 and 11,9 (Fig. 3).  Tennecetin is distinguished from nystatin, antimycoin, sistomycosin, chromin and amphotericin A. Specifications 712,457, 714,189 and 719,878 are referred to.
Patent GB-603356-A (GB)
Title: Improvements in machines for bending metal strips
IPC: B21D7/08
Filed: 1945-10-18
Abstract: 603,356. Angular bending ; ; curving. FAIREY AVIATION CO., Ltd., WELHAM, G. L. F., and HILL, H. Oct. 18, 1945, No. 27387. [Class 83 (iv)] A machine for changing the profile and bending a strip comprises a series of rolls the last pairs of which are displaced out of the plane of the strip. The strip 10 is fed from a reel 11  through profiling rolls 12-19 and then through bending rolls 20-23 mounted in yokes 24, 25 pivoted by links 27, 29 to a shaft 26. The position of the yokes 24, 25 is adjusted by cam grooves 33 on a disc 34 on a driven shaft 35. A one revolution clutch on the shaft 35 rotates the rolls 12-19 intermittently. Shearing-adjuncts.-During the rest period a blade, Fig. 2 (not shown), is reciprocated to shear the strip. Coiling.-The shearing means may be omitted and a continuous coil, Fig. 3 (not shown) may be formed.
Patent GB-1046622-A (GB)
Title: Control system for a tractor
IPC: A01B63/111
Filed: 1963-04-16
Abstract: 1,046,622. Tractor power lift mechanisms. MASSEY-FERGUSON Inc. April 16, 1963 [Aug. 1, 1962], No. 27419/66. Divided out of 1,046,621. Heading A1P. The subject matter of this Application is included in Specification 1,046,621.
Patent GB-1222955-A (GB)
Title: Coated titanium dioxide pigments
Inventor: EDGAR OWEN BURCHELL
IPC: C08K9/02
Filed: 1967-06-14
Abstract: 1,222,955. Polyamide compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 15 May, 1968 [14 June, 1967], No. 27481/67. Heading C3R. [Also in Division C1] A polyamide composition comprises a synthetic linear polyamide and a TiO 2  pigment coated with an Sb compound and with an Mn compound. The TiO 2  may be coated with 0À1-5% by wt. Sb calculated as Sb 2 O 3 , and with 0À05-2% by wt. Mn calculated as MnO. It may also be coated with Al and Si compounds. The composition may contain 0À01- 5% by wt. of the coated pigment. In the example, hexamethylene diamine adipate was polymerized with a TiO 2  pigment coated with Sb 2 O 3  and Al and Mn hydroxides.
Patent GB-462889-A (GB)
Title: Improvements in or relating to high-pressure electric discharge tubes
IPC: H01J61/04
Filed: 1936-10-10
Abstract: 462,889. Glass manufacture. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 10, 1936, No. 27561. Convention date, Oct. 14, 1935. Drawings to Specification. [Class 56] [Also in Group XL] A quartz tube, forming the body of an electric discharge tube, is sealed to a cap 4 consisting of glass having composition of 88À3 per cent SiO2, 8À4 per cent B2O3, 2À9 per cent Al2O3, and 0À4 per cent CaO.
Patent GB-802874-A (GB)
Title: Improvements in or relating to circuit arrangements for amplifying high frequency oscillations
Inventor: GOFF PAUL FREDERICK
IPC: H03F1/16
Filed: 1955-09-29
Abstract: 802,874. Valve amplifying circuits. PLESSEY CO., Ltd. Sept. 6, 1956 [Sept. 29, 1955], No. 27703/55. Class 40 (6). In an intermediate-frequency amplifier using a triode-pentode double valve the inherent capacity C1 between anode and grid of the pentode is used to neutralize feedback over the capacity C2 existing between the grids of the two valves, the intervalve coupling circuit 3, 4 being so phased and proportioned that neutralization is obtained. The triode 5 is used as a cathode-follower. In a modification (Fig. 2, not shown), the intervalve coupling comprises a #-section filter formed by a series inductance from the anode of the pentode to the grid of the triode, with shunt condensers to earth. The ratio of the two condensers is chosen to give such an overall gain that neutralization is obtained.
Patent GB-503678-A (GB)
Title: Manufacture of a substitute for wool from viscose
IPC: D01F2/06
Filed: 1937-10-12
Abstract: 503,678. Spinning processes. I. G. FARBENINDUSTRIE AKT.-GES., and GROVES, W. W. Oct. 12, 1937, No. 27710. Addition to 450,257, [Group IV]. [Class 120 (iii)] [Also in Group IV] The process described in the parent Specification for making fibres suitable as a substitute for wool is modified by passing the cut staple fibres of cellulose xanthate suspended in a stream of decomposing liquid, e.g. a hot t concentrated solution of sodium sulphate, through a pipe into which a jet of steam streams under pressure from a nozzle so as to strike the fibres and thus to separate them from each other. The jet of steam issuing from the nozzle expands suddenly and produces a violent movement in the treating liquid. The steam may be blown in the direction of the current of liquid. A uniform suspension of fibres is obtained. This is led on to a sieve running over a roller to remove the fibres in the form of a fleece.
Patent GB-475604-A (GB)
Title: Improvements in transferring mechanism for freight containers on vehicles
IPC: B60P1/64
Filed: 1936-10-13
Abstract: 475,604. Handling transferrable loadcontainers ; rope &c. railways. FITCH. B. F. Oct. 13, 1936, No. 27790. Convention date, Oct. 18, 1935. [Classes 78 (iv) and 104 (ii)] In a transport system for transferrable freight containers wherein a road vehicle is provided with bridge members for connection to another vehicle or platform whilst propelling chains on the vehicle transfer a container, the container is connected to each propelling chain by a temporarily attached pull-and-push bar 10 carrying a pair of pivoted jaws 20 with teeth to engage the chain. For attachment, the bar 10 is formed with an end 11 of spherical contour with flattened sides adapted to be inserted through a rectangular slot into a spherical cavity c<2> in the container C wherein it is retained by rotation through 90‹. In this position, the jaws 20, connected by a pair of pivoted links 35 to the other end of the bar, are vertically disposed for engagement with a propelling chain 40 of the link and roller type. The teeth are shaped to hug the. chain rollers 42, the jaws being connected to the link pivot pin 36 by elongated slots 24. The tractive force through the links 35 tends to draw the jaws together, lugs 29a facilitating manual disengagement from the chain when tension is relaxed. The chain 40 passes round an end sprocket wheel 52 on the bridge member D, the sprocket being driven through suitable gearing by an electric motor. The container C is provided with rails or skids c adapted to engage guideways in the bridge members and on the vehicle A or platform B.
Patent GB-747641-A (GB)
Title: Improvements in or relating to percussive tools operated by an internal combustion engine and manipulated by hand
IPC: E02D3/068
Filed: 1953-10-13
Abstract: 747,641. Percussive tools. WACKER, H., and WACKER, P. Oct. 13, 1953 [Nov. 6, 1952], No. 28133/53. Class 124 A percussive tool in which the tool bit is reciprocated longitudinally is provided with an internal combustion engine detachably secured to the upper part of the tool housing and power is transmitted to the tool by a gear chain. As shown, applied to a tamping tool, the tool 1 is fixed to an internal combustion engine 4 by a flanged joint and the motor spindle 15 has a pinion 16 meshing with a gear wheel 17 on which is fixed a crank-pin 4. A connecting rod 18 connects the crank-pin 14 with a sleeve 19 slidably located within the housing 1. A piston 20 within the sleeve 19 is attached to the shank 2 of the bit and is actuated by two springs 21, 22, one on either side of the piston, as the sleeve 19 is reciprocated. The housing may have a handle 3 and a further handle 11 carrying the motor controls and may be attached to the housing. Another handle may be provided on the engine in addition to, or in lieu of, the handle 11. The engine exhaust may be used for clearing the bit or for heating the tool. The engine may be started by pressing the tool downwards on to the work.
Patent GB-809939-A (GB)
Title: Moulding composition
IPC: C04B28/02
Filed: 1956-09-14
Abstract: A moulding composition for use in the manufacture of bricks, blocks, or the like comprises a mixture of fine dust and cement or lime, and fibres of glass- or slag-wool of length less than 50 m.m.  Water is added to the composition and the plastic mass is pressed in moulds. Unspecified salts and dyes may be added to the mixture.
Patent GB-861659-A (GB)
Title: An improved inflator for cuffed endotracheal and other tubes
IPC: A61M16/04
Filed: 1957-09-06
Abstract: 861,659. Surgical cuff inflators. MITCHELL, J. V. Dec. 5, 1958 [Sept. 6, 1957], No. 28149/57. Class 81 (2). [Also in Group XXVIII] An inflator specially de signed for use with a cuffed endotracheal tube comprises a hand pump having a valve 31 in its outlet and having a tapered outlet nozzle 21 for fitting into the inflation tube. Preferably the pump utilizes a bellows 24 and the endplate 23a has a central orifice 34 which can be occluded by the user's thumb during each compression stroke. The pump may thus be actuated by one hand. When the cuff is to be deflated, the cap 30 is unscrewed to allow the air to escape. The nozzle may have two tapered portions 29, 30 so that it may fit tubes of all diameters in normal use.
Patent GB-928161-A (GB)
Title: Substituted benzoquinones and hydroquinones and their preparation
IPC: C07C46/08
Filed: 1959-08-18
Abstract: The invention comprises: (a) hydroquinones of the general formula <FORM:0928161/IV(a)/1> (b) benzoquinones of the general formula <FORM:0928161/IV(a)/2> (n representing an integer from 1 to 5 in both formulae); (c) the preparation of hydroquinones of the general formula given in (a), but in which n represents an integer from 1 to 10, by condensing 2,3-dimethoxy-5-methylhydroquinone with an alcohol of the general formula <FORM:0928161/IV(a)/3> or <FORM:0928161/IV(a)/4> in the presence of an acidic condensing agent; (d) the preparation of benzoquinones of the general formula given in (b), but in which p  n represents an integer from 1 to 10, by treating the corresponding hydroquinones with a mild oxidizing agent; and (e) the combination of processes (c) and (d).  The benzoquinones possess Coenzyme Q activity.  2,3-Dimethoxy-5-methylhydroquinone is prepared by reducing 2,3-dimethoxy-5-methyl-benzoquinone, e.g. with hydrogen in the presence of a palladium, platinum or Raney nickel catalyst, sulphur dioxide, sodium hydrosulphite, zinc and acetic acid, or sodium borohydride.  Specification 925,581 is referred to.
Patent GB-209828-A (GB)
Title: Improvements relating to steam generator headers and like hollow bodies
IPC: B21K21/00
Filed: 1922-10-17
Abstract: 209,828. Trevorrow, J. H. L. Oct. 17, 1922. Steam generators. - Hollow metal bodies of rectilinear cross section such as steam boiler headers are made weldless throughout by working the open end of a blank a of rectilinear cross-section to rounded form and then bringing this end c to a domed form provided with a substantially central opening. The open end of the blank is acted on while hot by a die d the crosssection of which gradually merges from a rectangle to an ellipse, a plug e of oval section lying within the open end. A series of cupping-dies such as f, Fig. 5, is then driven on to the end of the blank to reduce the opening to circular form. The blank is then acted on bv a die of circular cross section and hemispherical end, bringing the open end to the shape shown in Fig. 1.
Patent GB-1506193-A (GB)
Title: Incandescent display lamp
IPC: H01K7/04
Filed: 1976-07-07
Abstract: 1506193 Alpha-numeric displays REFAC TECHNOLOGY DEVELOPMENT CORP 7 July 1976 [7 April 1976] 28263/76 Heading G5C [Also in Division H1] An incandescent lamp, e.g. for displaying numeric or alpha-numeric characters, comprises an all-glass evacuated envelope having a faceplate 18 and a bottom wall 20, a plurality of filament posts 26 connected to tungsten filaments 24 and a set of conductor pins 28 embedded in the bottom wall 20 and connected to the posts 26 externally of the envelope. The materials of the posts 26 and the envelope glass are thermally matched for an effective seal. The posts 26 may be welded to the pins 28.