baber/WOPTO huggingface dataset:
Patent GB-817232-A (GB)
Title: Improvements relating to mixing valves
IPC: G05D23/13
Filed: 1957-02-22
Abstract: 817,232. Disc brakes. RANCO Inc. Feb. 22, 1957 [March 2, 1956], No. 6008/57. Class 103 (1). [Also in Group XXIX] A mixing valve comprising a thermal element T in the mixing chamber 14 for operating valves 40, 41 has the mixture temperature selected by manual adjustment of the thermal element through a movable member 84 biased to one adjusting position, e.g. by a coil spring 85, and a friction brake or clutch operative by pressure fluid flowing through the valve to hold the member in manually selected position against the bias and responsive to a decrease in the pressure to release the member for movement under the bias. Contraction of the thermal element allows hot water pressure at 12 to open the valve 40 and reduce the opening of the valve 41 by the cold water pressure through the lever 47 contacting the thermal element at 49 and interconnected with the valve 40 by a spring 52. The mixture in chamber 14 flows to the outlet via a diaphragm valve controlled by a solenoid-operated pilot valve, the outlet containing a restriction whereby the outlet pressure is applied in a chamber 88 behind a diaphragm 87. The element T is urged upwardly by a spring or pressure in the chamber 14 acting on the sealing diaphragm 64 to abut a screw 71 carried by a lever 68 biased in an anticlockwise direction by a spring 81 until a screw 72 abuts an adjustable cam stop 73 which determines the lowest mixture temperature. Higher mixture temperatures are selected by rotating the lever 68 clockwise by means of link 75 connected to an eccentric 77 rotated by the handle 84. The handle is maintained in position against the spring 85 by friction between a casing held clutch plate 100 positioned between clutch plate 98 and a flange 101 of the eccentric when outlet pressure moves diaphragm 87 to the right to shift piston 89 and ring 91 acting on plate 98 via spring 93. The clutch yields to manual operation of the handle. The hot mixture is led to a washing machine tub, which, when full, closes the solenoid controlled outlet valve so that the reduced pressure releases the clutch and allows spring 85 to return the handle 84 to a low temperature rinse water setting.
Patent GB-444928-A (GB)
Title: Improvements in or relating to satchel bottom bags
IPC: B65D30/18
Filed: 1935-02-25
Abstract: 444,928. Paper &c. bags. SMITHE MACHINE CO. Inc., F. L., 633, West 44th Street, New York, U.S.A.-(Assignees of Novick, A. ; Flushing, New York, U.S.A.) Feb. 25, 1935, No. 6014. Convention date, March 15, 1934. [Class 94 (ii)] A sift proof bag of paper, transparent cellulose, &c., of the satchel bottom type, comprises a tube 1, a bottom forming square with two equal triangular portions whose free edges substantially meet at 4, but do not overlap, the square being creased at 11, 12 to form tab areas 9, 10 which are folded over on to the base and adhered by gum areas 13, 14, and a patch 7 covering the margins 4 centrally up to a portion of the tab areas 9, 10 but terminating within the boundaries of the square and adhesively united to the bag material at 8. The bag may be of square cross-section so that the tips of the tab areas 9, 10 do not overlap. Specification 437,449 is referred to.
Patent GB-987371-A (GB)
Title: Charged particle generator
IPC: H01J27/02
Filed: 1963-02-14
Abstract: 987,371. Ion sources. KABUSHIKI KAISHA HITACHI SEISAKUSHO. Feb. 14, 1963 [Feb. 15, 1962], No. 6095/63. Heading H1D. A generator for either ions or electrons comprises a vacuum cleaner 1 having an axial magnetic field e.g. from electromagnets 3, 20, an arc discharge box 10 adjoining a plasma chamber 12, and means for making the plasma box positive, or negative, with respect to a collector or control electrode so as to extract ions, or electrons, from the plasma box. To support the discharge a gas, e.g. hydrogen or argon, may be admitted at 9, the chamber 1 being continuously evacuated. The plasma chamber may be electrically isolated from the arc box, or may be replaced by a long narrow hole in the head of the arc box. The generator may be used in an electron microscope or in a charged particle accelerator.
Patent GB-714634-A (GB)
Title: Improvements in nutrient media for the cultivation of antibiotic-producing micro-organisms
Filed: 1952-03-11
Abstract: A nutrient medium for cultivating antibiotic-producing micro-organisms comprises corn steep liquor to which has been added one or more of the following fractions obtained from the wet milling of corn, namely: (a) the water effluent discharge from the gluten concentrator, (h) the settlings from such effluent, and (c) the foam fraction from such effluent (see flow sheet).  The quantity of (a) and (b) is 1.6 to 27 per cent, and of (c) 0.8 to 27 per cent, by weight dry basis of total solids content corn steep liquor and added fraction.  The medium is suitable for the production of penicillin, streptomycin, aureomycin, chloramphenicol and terramycin.
Patent GB-608565-A (GB)
Title: Improvements in and relating to the treatment of tetrahydrofurfuryl alcohol
IPC: C07D307/12
Filed: 1946-02-27
Abstract: In a process for purifying tetrahydrofurfuryl alcohol containing furfural and (or) furfuryl alcohol, the impure alcohol is treated with an acidic substance or a reagent giving rise thereto, and the mixture is then treated to separate tetrahydrofurfuryl alcohol. Suitable acid substances are sulphuric, hydrochloric, sulphamic and p-toluenesulphonic acids and alkali bisulphates, and suitable acid-forming substances are aluminium chloride and boron trifluoride monohydrate.  The treatment may be effected at atmospheric, reduced or raised pressure by heating the mixture to about 20 DEG  C. below its boiling point under the pressure employed or by boiling the mixture under reflux, and the subsequent separation of tetrahydrofurfuryl alcohol may be effected by distillation or by treatment with an adsorbent, e.g. Fuller's earth or activated clay, followed by distillation.  An excess of a neutralising agent, e.g. an alkali or alkaline earth hydroxide and (or) carbonate, is preferably added before distillation.  The process may be applied to tetrahydrofurfuryl alcohol containing (a) up to 10 per cent by weight of furfural and substantially no furfuryl alcohol, or (b) up to 15 per cent by weight of furfuryl alcohol and substantially no furfural, or (c) furfural and furfural alcohol each in a proportion of not more than 5 per cent by weight.  Examples are given.  Specification 547,334 is referred to.
Patent GB-717778-A (GB)
Title: Improvements in or relating to formless paper box machines
IPC: B31B3/46
Filed: 1952-03-10
Abstract: 717,778. Making boxes. INTERNATIONAL PAPER BOX MACHINE CO. March 10, 1952, [March 23, 1951.] No. 6152/52. Class 18. Prescored carton blanks are drawn through a forming channel by suction devices which pull them individually from the base of a stack. The blanks, which may include a lid portion 29, are positioned by rods 61-64 above the forming channel comprising an upper set of folding elements 70, 71 and a lower set 90, 91 at right angles to the first. Suction tubes 110-113, carried by a reciprocating slider 121, grip the lowest blank and pull it past the elements 70, 71, when ridges 75, 775 fold up the end panels 21, 22, and surfaces 76, 776 fold up notched tabs 25-28 to a lesser extent. The elements 90 first and 91 later fold up side panels 23, 24 as the blank continues downwards, and devices 80, 780 assist the interlocking of tabs 26, 28 and 25, 27. The completed box is released by the suction tubes above a shoot 150, into which it is propelled by a leaf spring 153 (Fig. I) biased outwardly by the downward descent of the box. The box falls from the] shoot on to a conveyer 156 where it is aligned by reciprocating fingers 164 and the interlock of the tabs 25-28 assured by weighted rollers 170 running along the upper edges of the tabs as the box is removed by the conveyer. All elements of the machine are adjustable for forming various sizes of box.
Patent GB-1036434-A (GB)
Title: Improvements in or relating to the formation of a copper layer on an electrically non-conducting support
IPC: C03C17/10
Filed: 1962-02-16
Abstract: In a method of forming a Cu layer on an electrically non-conducting support, two liquids one of which comprises a solution of a copper salt and the other of which is a reducing agent are sprayed simultaneously on to a surface of the support and at the same time a catalyst, which may be included in at least one of the liquids, is sprayed on to the surface, the catalyst serving to assist in the interaction of the two liquids which do not contain free metal to produce free Cu which is deposited on the surface. The support may be a polyethylene terephthalate film. The copper solution may comprise CuSO4 . 5H2O, NaOH and sodium potassium tartrate or be an ammoniacal copper sulphate solution. The reducing agent may be formaldehyde or hydrazine hydrate. The catalyst may be palladium chloride, gold chloride or platinum chloride. Prior to depositing Cu, the support may be cleaned and roughened by vapour blasting with alumina, seeded by immersion in a SnCl2 or TiCl4 bath, and activated by immersion in an aqueous PdCl2 bath. The Cu may be built up by electroplating in an acid Cu bath.
Patent GB-286691-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: G08C13/02
Filed: 1928-02-28
Abstract: 286,691. British Thomson-Houston Co., Ltd., (Assignees of Powell, R. M.), March 9, 1927, [Convention date]. Tell-tale apparatus.-In a system for indicating at a central station the average value or the sum or difference of the indications of a number of measuring instruments located at remote stations, the instruments control transmitters which are connected to a. single receiver through the intermediary of a plurality of transformers adapted to produce, an averaging effect. As shown in Fig. 2, the measuring instruments control the positions of rotor windings 18, which are fed from single-phase supply mains 19, and co-operate, with three-phase stator windings 25. Corresponding terminals of the stator windings supply separate primary windings 21, 22 on each of three transformers 20, the arrangement being such that each stator winding supplies a mesh connection of primary windings on different transformers. The transformers are provided with secondary windings 23 connected in mesh and adapted to supply the three-phrase stator winding 24 of the receiver C. The voltages in the primary windings of the transformers depend upon the positions of the rotors 18, and the voltages induced in the secondary windings produce a field in the stator 24 in a direction which lies midway between the axes of'the fields produced by the rotors 18. The receiver field positions one or more magnetic bars which operate a pointer. The sum of the indications of the measuring instrument may be obtained at the receiver by using a scale of double the value of those used in the measuring instruments. Indications of more than two measuring instruments may be obtained by providing additional primary windings on the transformers. Resistances are included in the rotor circuits to prevent reaction of the transformer voltages on the transmitters.
Patent GB-1416272-A (GB)
Title: Catalysts for the manufacture of low-pressure polyethylene
IPC: C08F10/00
Filed: 1973-02-08
Abstract: 1416272 Olefin polymerization catalysts WACKER-CHEMIE GmbH 8 Feb 1973 [10 Feb 1972] 6249/73 Heading C3P A catalyst for polymerizing ethylene alone or with up to 10 mole per cent of an α-olefin at 20‹ to 200‹ C. at 1 to 100 atmospheres comprises (a) a hydrogenopolysiloxane, (b) a compound of an element of Group IVa of the Periodic Table, (c) a halide, halogenoalkoxide or alkoxide of aluminium and (d) an organotin compound of the general formula SnR 4 , where each R is an aliphatic or cycloaliphatic radical which may be the same or different. The polysiloxane may have the formula -[SiR<SP>1</SP>H-O]nwhere R<SP>1</SP> is C 1 -C 6  alkyl radical, an aryl radical or a cycloalkyl radical and the chain ends are terminated by (R<SP>1</SP>) 3  Si-groups, and may be a methyl, ethyl or phenyl hydrogen polysiloxane, (b) may be a halide, halogenoalkoxide or an alkoxide. The catalyst may also contain at least one compound of an element of Group Va and/or VIa of the periodic system (e.g. VOCl 3 , VCl 4 , CrO 2 Cl 2  or CrO 2 Cl(O n-propyl)) in an amount of not more than 50 m.mole per mole of compound (b), (c) may be AlCl 3 , AlBr 3 , AlCl 2 (O- n-propyl) or Al(O-n-isobutyl) 3 . Different orders of mixing a-d are given and the catalyst may be preformed or formed in situ. In Examples 1-17 ethylene is polymerized using as catalyst methylhydrogenopolysiloxane, AlCl 3 , Sn-n-Bu 4  and TiCl 4  alone or in admixture with VOCl 3  or VOCl 3  and CrO 2 Cl 2  and in Example 18 ethylene and butene-1 are copolymerized using the catalyst and VOCl 3 .
Patent GB-1273505-A (GB)
Title: Improvements in or relating to lathes
IPC: B23B3/06
Filed: 1970-02-10
Abstract: 1,273,505. Lathes; chucks. A. MONFORTS. 10 Feb., 1970 [14 Feb., 1969], No. 6274/70. Headings B3B and B3T. In a lathe means is provided to move a workpiece in a primary chuck 7 from a first position for loading or unloading, to an operating position in which the workpiece is machined, the means comprising a support member 1 which carries at least one intermediate chuck 6 permanently attached thereto and freely rotatable therein and into which can be located a primary chuck 7 with a workpiece 8 supported therein. In the embodiment described the support 1 is in the form of a rotary indexable table with two intermediate chucks 6 which are sequentially indexed between the first position and the operative position. When in the operative position the intermediate cnuck is aligned with and connectible with a driving spindle 5 of the lathe whereby the workpiece is rotated to effect the machining thereof by way of tool 9. Alternative forms of support members may be used, for example a rotatable turret with its axis of rotation oblique to the axis of the drive spindle or a displaceable or swingable slide. There may also be more than one operative position.
Patent GB-727986-A (GB)
Title: Improvements in or relating to electronic musical instruments
IPC: G10H5/02
Filed: 1952-03-12
Abstract: 727,986. Electrophonic musical instruments. SEYBOLD, R. March 12, 1952, No. 6422/52. Class 88 (2). [Also in Group XL (c)] Attack and decay are controlled by means of a delay circuit comprising capacitors and resistors. A generator A comprises a double triode T1, T2 arranged as a multivibrator. The frequency is controlled by an adjustable resistor R between the grid of T1 and ground, the resistor being adjusted by means of keys K. When a key is pressed, the oscillations are fed through a condenser CAB to the first control grid of a hexode H in a pre-amplifier B. The hexode H is combined with a triode T3, the anode of H being linked to the control grid of T3 by an adjustable capacitor C2. Immediately after ground is connected to the generator, ground is connected over a second contact of key K and over conductor L to make the bias on the control grid of T3 and the second control grid of H more positive than - G and to enable both valves to conduct. The application of the enabling bias to the two grids is delayed by the time taken to charge adjustable condensers C1, C2 through R1, R3, R4. The output from T3 is fed through a transformer M and lead S to an amplifier and a loud-speaker (not shown). The circuit can be adapted to suit a replacement valve T1, T2 by adjustment of resistors RO2, RO3, capacitor CO2 and potentiometer P. Resistor RO2 can be adjusted alone to alter the pitch of the instrument as a whole. The hightension supplies Al, A2 are stabilized by means of neon tubes NA, NB. The condenser C2 and the resistances may be mechanically coupled to the keys so that high notes have a fast attack and low notes a soft attack.
Patent GB-787011-A (GB)
Title: A jet deflecting flap for jet-propelled aircraft
Inventor: HIGGINS DEREK GUY HARCOURT
IPC: B64C23/00
Filed: 1955-03-04
Abstract: 787,011. Jet propelled aircraft. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Feb. 20, 1956 [March 4, 1955], No. 6432/55. Class 4. An aircraft wing comprises a trailing edge flap mounted to turn about a virtual axis below the wing and flap, and jet propulsion means discharging a propulsive jet rearwardly over the flap to leave the rear of the wing as a long thin set sheet extending along the span of the flap, which is disposed to guide the set sheet along a path following its upper surface, the forward part of which is in the form of an arc centred on the said axis. Fig. 3 shows a cross section of the trailing edge of the wing, which comprises upper and lower skins 7, 8, and an auxiliary spar 12 through which passes a gas turbine nozzle 11a inclined upwardly at 10 to 15 degrees to the horizontal. The under surface of the nozzle is shaped to conform to the upper forward surface of the flap centred on the axis 0, and there may be a gap for cooling air or a sliding seal between the flap and nozzle. Brackets 13 extend rearwardly from spar 12 and each supports an arcuate guide track 14 (see also Fig. 5) centred on the axis O. The flap 4 comprises ribs 15 to which are secured guide blocks 16 co-operating with the track 14. The jet sheet is constrained to follow the upper surface of the flap, the limits of movement of which are shown in chain lines in Fig. 3. In an alternative construction, the flap is mounted about a forward axis in bearings which are movable fore-and-aft and the rotary and linear movements of the flap are regulated so that it turns about the axis O. There may be a spanwise series of contiguous nozzles 11a, and they may discharge upstream of the flap. A small quantity of air may be discharged between the jet sheet and the flap to prevent separation. The flap may extend from wing root to wing tip, and may be internally aircooled. Specifications 758,269 and 787,012 are referred to.
Patent GB-1346157-A (GB)
Title: Cooling apparatus for a thyristor
IPC: A23N12/02
Filed: 1972-02-11
Abstract: 1346157 Heat pipes BROWN BOVERI & CO Ltd 11 Feb 1972 [13 Feb 1971] 6438/72 Heading F4U [Also in Division H1] The heat from a power thyristor disc 1 is dissipated by apparatus comprising thermally conductive press blocks 12, 13 pressed into contact with the disc by clamping plates 6, 7 and at least one heat pipe 4, 5 in thermal contact with the blocks. The clamping plates 6, 7 engage thrust balls 18, 19 and threaded tie bolts 8, 9 pass through the plates to exert the clamping pressure. The blocks may have enlarged head portions, Fig. 2, and the or each heat pipe is in contact with both the head and shank portions of the blocks and has cooling fins 10, 11. As shown the heat pipes each comprise an L-shaped evaporator vessel 2a, 3a with a capillary lining and having a bore with a profile matching the stem portion of the press block which passes through the bore. Condensation tubes 22 having cooling fins 10 are connected to the vessels through apertures in the vessel wall 20 to form the complete heat pipes, which tubes may also be lined with capillary material.
Patent GB-608916-A (GB)
Title: Improvements in or relating to chairs
IPC: A47D1/00
Filed: 1946-03-02
Abstract: 608,916. Nursery chairs. FREEMAN, A. March 2, 1946, No. 6566. [Class 52(ii)] A nursery chair has tubular steel vertical side frames fitted with wheels and connected by a front horizontal cross bar 2, a detachable table C being carried by the cross bar and the arm-rest portions 5 of the side frames. The seat and back B have an integral tubular frame adjustably positioned by screws 13 in the arm rests and slidably supported by pegs 16 at the front of the side frames. Pegs 26 on the seat frame are adapted to fit in sockets 25 on a tubular metal stand D to form a high chair.
Patent GB-1064903-A (GB)
Title: Improvements in or relating to apparatus for heating objects by induction
IPC: H05B6/14
Filed: 1965-02-17
Abstract: 1,064,903. Induction heating. SOCIETA ITALIANA APPARECCHI TERMO-ELETTRO-MECCANICI S.p.A., and C. DI PIERI. Feb. 17, 1965, No. 6766/65. Heading H5H. A flux control ring 24 (short-circuited turn) is associated with a " pancake " inductor 16 to limit edge heating with varying sizes of workpieces, e.g. when brazing copper claddings on stainless steel saucepans. A variable pitch spiral on the inductor, Fig. 2 (not shown), may be used to assist in limiting edge heating. The effect of the flux control ring 24 is illustrated in Figs. 4A . . . 4D (not shown).
Patent GB-207451-A (GB)
Title: Improvements in wheels
IPC: B60C7/14
Filed: 1923-03-08
Abstract: 207,451. Reeves, R. C. March 8, 1923. Spring wheels.- Fig. 1 shows a portion of a wheel having a central portion a formed as a disc, spoke, wire or other rigid wheel and having a rim b between which and an outer rigid rim h of metal or partly of metal and partly of wood, are secured Cee-springs C of rolled steel or other resilient material, each having three grooves d, e, f, one groove d being at the centre of each spring and the other e, f being near the ends. The springs all face one way and are secured by rivets i or by bolts or welding. A felloe g may be provided. An inner disc cover of rubber in a stretched or unstretched state is fixed to the felloe to exclude dust &c.. and a similar outer disc is provided formed of metal, wood, celluloid or other similar material or of canvas, tarpaulin or other textile material or of rubber.
Patent GB-231312-A (GB)
Title: Improvements in brakes for vehicles
IPC: B60T13/06
Filed: 1924-03-17
Abstract: 231,312. Royce, F. H. March 17, 1924. Reversing-gearing ; friction clutches.-In brake mechanism for road vehicles of the kind comprising a rock shaft connected to the brakes and adapted to be actuated by a running shaft of the vehicle through a friction clutch device, the rock shaft is adapted to be rotated in the same direction irrespective of the direction of motion of the vehicle. A pinion b<1> on the running shaft b gears with a pinion d and an annulus e, both freely mounted on a shaft c to which is secured a member f carrying one member f<2> of the friction clutch. The hub d<2> of the pinion d carries inclined teeth d<3> engaging teeth c<3> on a flange c<2> fixed to the shaft c, whilst the sleeve e<3> slidably but non-rotatably mounted on the hub e<1> of the annulus e carries inclined teeth e<4> engaging teeth c<5> on a member c<4> also fixed to the shaft c. With this arrangement, when the shaft b rotates in one direction, the pinion d drives the shaft c and the teeth e<4>, e<5> move out of engagement, whilst when the shaft b reverses, the teeth d<3>, c<3> disengage and the annulus drives the shaft c. As the pinion and annulus rotate in opposite directions, the shaft c will always be rotated in the same direction. The friction members h<2>, i<2> of the clutch are carried respectively by a flange h on the rock shaft g and a flange i freely mounted on the rock shaft, the flanges h, i being secured together for rotation by pins i<6>, and the flange i carrying a rod i<5> connected to the brakes. A pedal-operated lever j mounted freely on the hub i<1> of the flange i has inclined teeth j<1> engaging teeth on a sleeve j<2> slidably mounted on the hub i and bears on a washer j<3> slidably but non-rotatably mounted on the shaft g and provided with teeth to engage teeth on a lock-nut j<5> screwed on the shaft g. With this arrangement, when the lever j is rotated to apply the brakes. the sleeve j<2> moves the flange i to the left and the washer j<3> forces the shaft g and flange h to the right. The clutch is thus engaged and the torque of the shaft c applies the brakes. If the vehicle is stationary or the shaft c rotating very slowly, continued movement of the lever j applies the brakes directly, both sets of teeth d<3>, c<3>, e<4>, c<5> becoming disengaged. To regulate the clearance of the friction members h<2>, i<2> from the plate, f<2>, the lock-nut j<5> is screwed up until engagement takes place, when the teeth on the washer are just clear of those on the nut, and is then unscrewed until the teeth engage fully. Oil retaining flanges i<8>, i<9>, are provided on the shaft g to prevent access of oil to the friction members of the clutch.