baber/WOPTO huggingface dataset:
Patent GB-202323-A (GB)
Title: Improvements in and relating to lathes specially wood lathes
IPC: B27C7/00
Filed: 1923-08-11
Abstract: 202,323. Hamblen, W. J. Aug. 12, 1922, [Convention date]. Lathes.-In a lathe adapted to produce spirally-grooved or fluted work such as is required in the production of Jacobean furniture, banisters, &c., the saddle, traversed by a lead-screw 39, is provided with two oppositely-disposed rotary tool spindles 12, 13 supported in rests 15 carried on slides provided with removable nuts 32 and actuated by a right and left hand screw 33. The tool spindles are driven by belts from overhead pulleys 59 belt-driven from a main shaft, and the rests 15 have limited angular adjustment on the slides 16, which are kept up to the nuts 32 by springs 37. Each rotary tool comprises blades 53, 54 interchangeably fitted in chordal slots in a plate 48 and profiled according to the work required. For cutting left-handed spirals, the blades are oppositely chamfered, and the tools rotate in the opposite direction. The rests 15 are provided with V-shaped centring guides 22 carried on shanks 23 and adjusted so that the guides may abut the work or each other to determine the depth of the cut. The leadscrew and headstock spindle are driven at the required speed ratio from a handle 42 and gearing 40. For cutting straight flutes, an angular scale is fixed to the he,a,dstock spindle, and a brake is provided to hold the work in the required angular position. The gearing from the leading screw is disengaged, and the desired angular movement is given to the work between successive traverses of the tools. For cutting spirals &c. on a tapered blank, the nuts 32 are unscrewed from the blocks 16, the guides 22 set to allow the required depth of cut, and the rests 15 set to the angle of the taper. The cutters are then kept up to the work by the springs 37. Lathe drivers.-The work is supported between centres, and is driven by means of two pairs of arms 44 pivoted to a face-plate 43 and carrying bars 46 through which pass clamping bolts 47.
Patent GB-803207-A (GB)
Title: Improvements in or relating to tractor-trailer combinations and tractors for use in such combinations
IPC: E02F3/65
Filed: 1956-07-03
Abstract: 803,207. Vehicle couplings. SIMMONS, L. R. July 3, 1956 [July 8. 1955]. No. 20587/56. Class 103(5) A four wheel drive tractor 10 is connected to an earth scraper by a towing connection 14 and by a load-transfer jack 13 the line of action of the jack intersecting the line of action of the draft link 14 at a point between the front and rear wheels of the tractor. The bracket 69 to which the jack is attached is provided with two holes 71, 71<SP>1</SP> so that the distribution of the transferred weight between the tractor wheels may be varied. Alternatively the jack may be attached to an arm pivoted to the tractor so that its inclination may be varied. Specification 583,976 is referred to.
Patent GB-358887-A (GB)
Title: Improvements in or relating to push-pull thermionic amplifiers
IPC: H03F3/28
Filed: 1930-07-08
Abstract: 358,887. Valve amplifying circuits. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Wheeler, H. A. ; 78, 22nd Street, Jackson Heights, New York, U.S.A.) July 8, 1930, No. 20663. Convention date, Aug. 17, 1929. [Class 40 (v).] In a push-pull thermionic amplifier operating without a grid bias battery an impedance is interposed between the valve cathodes and the input circuit so that the valves are alternately active. The Figure shows an arrangement in which resistance R1 restricts the grid current in the valve to which a positive signal is applied and renders this valve ineffective, while the reduced impedance of the valve connects the end of the transformer to the cathode of the other valve which thus receives the whole available voltage. A resistance R2 or a choke may be provided in the plate supply source to prevent the inactive valve from shunting the output by causing the output from the active valve to flow in series through the output transformer T2 and the inactive valve. The resistance R1 may be replaced by a choke and the arrangement may be used as an intervalve coupling. In a modification, Fig. 5 (not shown), the output is applied to a loud-speaker of the kind in which the armature moves in a plane parallel with the faces of two pairs of polepieces, each pair being provided with a winding in the output of one of the valves.
Patent GB-1120708-A (GB)
Title: Method of, and composition for, treating household textile articles
IPC: D06M13/398
Filed: 1966-05-10
Abstract: Textiles are treated with a substantive fluorocarbon compound as an aqueous solution during household laundering.  Example 11 specifies the use of a composition comprising sodium tripolyphosphate, sodium silicate, nonyl phenolethylene oxide, sodium carboxymethyl-cellulose, perfluorosulphonamide acrylic latex, and distearyl dimethyl ammonium chloride. Other anionic, cationic and non-ionic surfactants may be incorporated.ALSO:Textile articles are treated with 0.1-10% of a substantive fluorocarbon compound as an aqueous solution during or after household laundering, preferably during rinsing.  The articles may be of cotton, wool, nylon, cellulose acetate, or polyester.  The fluorocarbon compound contains at least three carbon atoms and at least 70% of the hydrogen atoms are replaced by fluorine, the following being exemplified: perfluorooctanoic acid, perfluorooctanoic acid-chrome complex, perfluorooctylacrylate polymer, perfluorosulphonamide acrylic latex, perfluorooctanamidomethyl pyridinium acetate, and perfluorooctanamidomethyl propyl diethyl ammonium bromide.  Other exemplified constituents of the solution are: urea-formaldehyde, methylated urea-formaldehyde urea-formaldehyde-guanidine, dimethylol ethylene urea dimethoxymethyl urea, triazine-formaldehyde dicyandiamide-formaldehyde, polyvinyl acetate, octyl phenoxy polyethylene oxide; paraffin wax; aluminium hydrate, chlorhydroxide; acetate; zirconyl acetate; tris aziridinyl phosphine oxide; distearyl dimethyl, octylphenoxy-ethoxymethyl benzyl dimethyl, dihydroxyisopropyl methyl hydrogenated tallow ammonium chloride.
Patent GB-201038-A (GB)
Title: Improvements in and relating to systems of electrical distribution
IPC: H02J5/00
Filed: 1922-07-28
Abstract: 201,038. British Thomson - Houston Co., Ltd., (General Electric Co.). July 28, 1922. Protective arrangements.-The output of a generator is limited under abnormal load conditions by placing a resistance in operative relation to the circuit when a short-circuit or abnormal load occurs and by connecting the shunt field-winding of the generator in parallel with the armature and the resistance. Under normal conditions the resistance is shunted by a series field-winding. The generator is connected to the circuit through a circuit-breaker, the contacts of which are bridged by a low impedance. The armature 1 and a resistance 7 are shunted by a field-winding 5 provided with a regulating resistance 15. A series field-winding 6 is adapted under normal conditions to be connected in parallel with the resistance 7 by means of a voltage relay 8, the operating winding 10 of which is controlled by a current relay 12. To connect the generator to line a switch 20 is closed to complete the circuit of the operating coil 18 of a circuitbreaker 17 and to connect the generator to line through a resistance 19 which is short-circuited when the circuit-breaker 17 is closed. At a predetermined voltage the relay 8 operates to close the circuit of the field-winding 6 in shunt with the resistance 7. Upon the occurrence of a shortcircuit or an abnormal load the current relay 12 operates to open the circuit of the operating coil 10 of the relay 8 and the resistance 7 is placed in the load circuit.
Patent GB-1103669-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C1/00
Filed: 1966-05-11
Abstract: 1,103,669. Nuclear reactors. GENERAL DYNAMICS CORPORATION. 11 May, 1966 [17 May, 1965], No. 20797/66. Heading G6C. A method of fuel management for a nuclear reactor utilizing a thorium-uranium 233 breeding cycle comprises charging the reactor core with fuel units containing uranium and thorium, operating the reactor for the desired reactivity life of at least a portion of the fuel units, removing said portion of the fuel units and reprocessing them to eliminate fission products and recover bred uranium, and refuelling the reactor core with bred uranium, thorium, and make-up plutonium for a subsequent reactor cycle. The method may be applied to a hightemperature graphite-moderated helium-cooled reactor, the core of which is charged initially with thorium and U235-enriched uranium ceramic fuel in the form of carbide or oxide particles uncoated or coated with pyrolytic graphite. The fuel may be contained in parallel channels in a cylindrical graphite moderator body as described in Specification 1,076,549. A central channel may contain additional moderator in the form of beryllium oxide or carbide. Composite particles of uranium and thorium carbides may be used as the fuel or, alternatively, the fuel may be segregated into uranium carbide and thorium carbide particles of different particle sizes to facilitate later separation. At half yearly intervals, for example, some of the fuel elements are removed and reprocessed, being replaced in the reactor by elements containing plutonium carbide or oxide mixed with bred uranium 233 and reprocessed or fresh thorium.
Patent GB-810225-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B15/60
Filed: 1956-07-05
Abstract: 810,225. Knitting-machines. CORAH (ST. MARGARET) Ltd., N., FREEMAN, E. W., and MANSFIELD, J. A. April 26, 1957 [July 5, 1956], No. 20832/56. Class 74 (2). Thermoplastic yarn knitted on a circular machine is severed by fusion by causing it to contact an electrically-heated plate 1 when the feeder 34 is withdrawn from operation. The feeder 34 supplies, for example, a splicing yarn and is controlled from a cam drum 21 and also by splicing mechanism through lever 51. Trapping mechanism 33 comprising a hooked plate 38 and a spring strip 41 is controlled from the dram 21 as also is the plate 1 which through linkages 10 ... 15 moves lever 17 carrying the plate 1 into its operative position. A spring 24 serves to return the lever 17 to its inoperative position and a switch is controlled by these movements such that the plate 1 is heated when it is moved into its operative position. When the feeder 34 is taken out of action the yarn is drawn by the needles between the plate 38 and spring 41 and also over the edge of the heater plate 1 whereupon it is severed, the tensioning imposed in the yarn by the spring 41 causing the severed end of the yarn to withdraw into the fabric An arm 29 pivoted on lever 17 serves to trip a catch 19 holding member 15 and to release it in the event of a faulty needle not being lowered before it passes the plate 1, release of the member 15 permitting lever 17 to return under the action of spring 24 to such a position as to operate a stop-motion on the machine.
Patent GB-883917-A (GB)
Title: Improvements in writing instruments
Inventor: NEEDS ARTHUR JAMES
IPC: B43K23/12
Filed: 1959-06-17
Abstract: 883,917. Writing instruments. ROLL TIP (ENGLAND) Ltd. May 19, 1960 [June 17, 1959], No. 20851/59. Class 146(3) A barrel or cap for a writing instrument is made of transparent material, e.g. a synthetic plastic material, and has internal and external longitudinally extending facets, the edges of the external facets 11 being situated opposite to the faces of the internal facets 12. The facets may be plane, as shown, or concave or convex. The facets serve as light reflecting surfaces and enhance the appearance of the instrument.
Patent GB-781061-A (GB)
Title: An arrangement for the cooling of electric unsymmetrically conductive systems with semi-conductive materials
IPC: H01L23/36
Filed: 1953-07-29
Abstract: 781,061. Semi-conductor devices. LICENTIA PATENT - VERWALTUNGS GES. July 29, 1953 [July 29, 1952], No. 21027/53. Class 37. A semi-conductor device comprises a body, e.g. of Ge or Si arranged between two parallel electrodes and containing a single P-N junction parallel to the electrodes, in which one of the electrodes, which is nearer the junction than the other electrode, has a higher heat dissipating property than the other. In the arrangement of Fig. 1, the P-N junction is formed in a N-type crystal 3 near the interface with an indium layer 2 on a base electrode 1 of copper which is the cooling element, by diffusion from the indium. A second electrode 5 of, for example, tin is attached to the upper face of the crystal. The arrangement of Fig. 3 (not shown), differs only in that two additional control electrodes are fixed to P-type zones on the sides of the crystal. In Fig. 2 (not shown), an aluminium base-plate 2 used with a thin sprayed-on layer of indium which alloys with the aluminium. In the Fig. 5 arrangement the base-plate forms the base of a cup and two such cups are mounted base to base with a space between them in an aluminium cylinder 22 of larger diameter, a coolant circulating in the passages thus formed. The cups are filled with a castable resin 25 of high heat conductivity, preferably containing quartz powder as filler. In a construction (Fig. 4, not shown), of the same type as Fig. 1, the base electrode is the base of a cylindrical container closed except for a hole to admit the other electrode and is partially filled with castable resin.
Patent GB-961123-A (GB)
Title: Improvements in and relating to transistorised circuit arrangements for producing a sawtooth voltage
IPC: H03K4/56
Filed: 1963-05-27
Abstract: 961,123. Transistor circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 27; 1963 [May 30, 1962], No. 21044/63. Heading H3T. A sawtooth generator comprises a switching transistor 4 and an integrating transistor 1 in series with the two collectors connected together through a resistor 3, the base of transistor 1 being connected via an integrating capacitor 6 to the collector of the switching transistor 4 and a further resistor 11 being connected from the collector of transistor 4 to a source of voltage such that the integrating transistor 1 is always conductive. In Fig: 3 a capacitor 6 is charged rapidly via transistor 4 and the base emitter junction of transistor 1. As the capacitor 6 nears the supply voltage the charging current drops and transistor 1 comes out of saturation and switches transistor 4 off via capacitor 8. The capacitor 6 is then discharged linearly in Miller fashion. To reduce the distortion of the first part of the stroke due to the low load 9 and capacitor 10, a resistor 11 feeds additional current through the integrating transistor. The resistor may be fed from a higher supply voltage. The circuit may be modified to produce an S-shaped waveform, Fig. 5. Resistor 7 may be omitted from the circuit and the transistor 4 driven by synchronizing pulses.
Patent GB-1002720-A (GB)
Title: Improvements in pneumatic systems for handling pulverulent material
Inventor: ANDERSON ARTHUR I
IPC: B60P1/60
Filed: 1964-05-21
Abstract: 1,002,720. Pneumatic conveyers; unloading vehicles. BUTLER MANUFACTURING CO. May 21, 1964, No. 21080/64. Headings B8A and B8E. In a system for discharging pulverent material from a container 20, Fig. 1, by blowing air into the container at diffusers in multiple outlet hoppers H, H<SP>1</SP>, H<SP>11</SP>, air is supplied from blower 28, an air pressure regulator 70 by which a pressure differential between the container 20 and the discharge line 71 can be adjusted. Air is tapped off at branches 67, 68 before the regulator 70 for supply via manifolds 64, 60 to the diffuser elements 51, Fig. 5. Material is released in turn from the hopper sections by adjustable outlet valves 72. Hollow annular ribs 31, 34 of the container wall 20 provide conduits between the upper part of the container and a check valve 77 which is coupled at 76 into the air supply line 65 between the supply check valve 66 and the pressure regulator 70. In the event of breakdown of the blower 28, the air in the container flows via check valve 77 into the line 65 and discharge line 71. In the event of a blockage in the line 71, the discharge valves 72 are closed and full pressure is allowed to build up in the container, whereby a reserve supply of air is obtained to augment the blown supply on the line 65. Sloping partitions 45, 46 at the ends of the container 20 provide reserve air spaces which are connected to the upper regions of the material containing portions of the container through the hollow annular ribs 31-34, the walls being apertured as at 74 to permit air flow into the ribs. Air diffuser elements 51, Fig. 4, are described in which air flows through channels 60 welded to the hopper walls 38, and passed to the interior through hollow bolts 58 to plenum chambers 54 for diffusion into the material through perforated partitions 53 and woven fabric 55. In modifications, examples are described of similar diffuser units 101, Fig. 9, which are detachably mounted as by springs 110 to hooked brackets 107, 108 within the container so that they may be readily removed when the container is required for carrying liquids. Detachable, plates may also be provided on the partitions 45, 46 so that the full volume of the container may be used for carrying liquids.
Patent GB-748646-A (GB)
Title: Improvements in aerials
IPC: H01Q9/08
Filed: 1952-08-22
Abstract: 748,646. Aerials. SHARDLOW ELECTRIC WIRES, Ltd., and JONES, P. Aug. 14, 1953 [Aug. 22, 1952], No. 21131/52. Class 40 (7). An aerial system for the reception of vertically polarized waves comprises four co-planar elements diverging from a common support, the aerial system being supported at the outer end of an element. As shown, the aerial system comprises a centre-fed V-dipole A, A<SP>1</SP> and two interconnected parasitic elements P, P<SP>1</SP>, the #/4 elements A, A<SP>1</SP>, P, P<SP>1</SP> being attached to a junction box 3 and the system being supported from a mast 5 by an insulator 4 attached to the lower end of the lower parasitic element Pl. The angle between elements A, A<SP>1</SP> and between elements, P, A is within the range 45-120 degrees and is preferably 90 degrees. In a modification, Fig. 2 (not shown), the upper parasitic element P is collinear with the lower support element P<SP>1</SP> and in another modification the four elements are mounted to form an X, the lower end of the support element or the insulator 4 or the upper end of the mast being bent so that the bisector of the V-dipole is horizontal. The dipole elements may be folded, the lower parasitic element may be longer than #/4 and constitute the mast, and the two parasitic elements may be connected to the lower dipole element.
Patent GB-250813-A (GB)
Title: Improvements in or relating to cooling tanks for milk churns or cans
IPC: A01J9/04
Filed: 1925-08-24
Abstract: 250,813. Major, A. Aug. 24, 1925. Cooling - tanks fitted with holders for milk cans.-A water tank 10 into which milk churns or cans 18 are lowered for cooling after filling is provided with means for maintaining the cans in an upright position during the filling operation. Along the base of the tank are arranged parallel bars 12 placed on edge and spaced by cross-bars 14 having flat lugs 15 engaging the faces of the bars 12. At one end the outer bars 12 are connected by a bend 16 and spaced upright bar members 19, 20, 21, with flared upper ends 26, are rigidly secured to the bend. These upright bars are stayed by cross-members 23, while other upright members 24 are resiliently mounted on the rigid bars by spring arms 25 which provide an opening for lateral insertion or removal of the can. The empty cans are preferably inserted singly into the holder at the top, and after each can is filled it is pulled laterally out of the holder and along the track bars 12 to the other end of the tank. The bars 12, 14 are not attached to the tank bottom but have their ends abutting against the tank walls.
Patent GB-797473-A (GB)
Title: Improvements in or relating to therapeutically active amino-ethers
Filed: 1956-07-09
Abstract: The invention comprises compounds of the general formula: <FORM:0797473/IV (b)/1> and also salts and quaternary salts thereof, wherein R1 and R2 are alkyl groups of 1-6 carbon atoms and R3 is a tertiary butyl or tertiary amyl group.  The compounds are prepared by treating a substance of the formula: <FORM:0797473/IV (b)/2> with a substance of the formula: <FORM:0797473/IV (b)/3> in which one of the symbols A and B is halogen and the other is O-metal, or in which the symbol A represents halogen and B an OH group.  In the latter case an acid-binding agent may be added. The compounds may also be prepared from a component which contains a halogen atom in place of the substituted amino group, by replacing the halogen atom by the desired amino group by known methods.  The compounds are used as therapeutic agents suitably in the form of salts such as the hydrochloride, hydrobromide, oxalate or tartrate.  The laevorotatory forms of the compounds may be separated from the racemates by conventional methods such as recrystallization of the d-tartrate.  Examples describe the preparation of o - tert. - butyl - benzhydryldimethylaminoethyl ether and o - tert. - amyl - benzhydryl - dimethylaminoethyl ether and the dextro- and laevo-tartrates of the former.  Starting materials.  b -Chloroethyl-o-tert.-butylbenzhydryl ether is made by the action of b -chloroethanol on o - tert. - butyl - benzhydrol.  Specification 743,495 is referred to.
Patent GB-1030744-A (GB)
Title: Improvements relating to liquid-containing vessels
Inventor: SILVERWOOD ALAN
IPC: A47J45/06
Filed: 1962-06-02
Abstract: 1,030,744. Teapot &c. handles. ALAN SILVERWOOD Ltd. Sept. 2, 1963 [June 2, 1962], No. 21362/62. Heading A4A. Axially split metal sleeves 6 are inserted in recesses 14 in arms 13 of a moulded thermosetting resin handle 12 and receive, as a force fit, projections 4 from a jug, tea-pot &c. The projections are formed as rivets having flat heads spot-welded to the jug &c. and the tapering sleeves, which have a short slit 11 opposite the axial split 10 are opened by the rivets to fit tightly in the bores 14. The handle is pushed home until the ends of the arms abut the wall of the jug, the head of the rivet being received in a counterbore 15 in the recess 14. The counterbore may be filled with synthetic resin adhesive.