baber/WOPTO huggingface dataset:
Patent GB-524407-A (GB)
Title: Improvements in or relating to multiple electric switch mechanism
IPC: H01H50/00
Filed: 1939-01-30
Abstract: 524,407. Electrically-released switches. MANLOVE, ALLIOTT & CO., Ltd., HURSTHOUSE, W., and HODGES, J. M. Jan. 30, 1939, No. 3122. [Class 38 (v)] Rotation of a hand knob 4 from a starting position into selected positions moves cams 11, 12 ... 15 which operate mercury switches 28, 31, 32, 33, 35; the shaft 2 carrying the cams is held in each switching position by a multipolar armature 9 which moves over two energized electromagnets 7. In each switching position, two poles of the armature bridge the magnet poles, 'and the attraction is strong enough to hold the armature and shaft against a return spring. Should the electromagnets 7 be deenergized the parts return to the starting position. The invention is shown applied to a system for controlling the heating of a boiler. Rotation of the knob 4 first energizes the magnets 7 and then puts heaters successively into circuit. Should the boiler boil dry a thermal switch is adapted to break the circuits so that the parts return to the starting position and all heaters are cut off. Specification 390,221, is referred to.
Patent GB-726555-A (GB)
Title: A method for the production of work pieces for rolling mill treatment, especially tube blooms, by continuous casting
IPC: B22D11/126
Filed: 1953-02-04
Abstract: 726,555. Continuous casting; dividing by fusion. RHEINISCHE ROHRENWERKE AKT.-GES. Feb. 4, 1953 [Feb. 5, 1952], No. 3176/53. Drawings to Specification. Class 83 (1) and 83 (4). A method of producing blooms, particularly tube blooms for subsequent rolling into seamless tubing, comprises cutting-off the blooms from a continuous casting by means of high frequency induction coils clipped on or to the casting. The cutting-off coils may be returned to initial position after operation or, a number of rings may be used spaced at the required distance apart according to the length of bloom required. Solid billets may be divided into individual pieces in the same manner.
Patent GB-103377-A (GB)
Title: Improvements in or relating to Rollers or Pulleys and Frames for Supporting the same.
Inventor: KING JOHN
IPC: E21F13/00
Filed: 1916-03-04
Abstract: 103,377. King, J. March 4, 1916. Frame rollers; guide pulleys and rollers. -In rollers or pulleys and their supporting- frames for colliery and other purposes, the haulage roller a, b, Fig. 6, is formed in separate pieces, having a ring on the inner face of each end piece b for supporting the barrel a, whereby the end pieces, after being shrunk on to the barrel, are held without the use of bolts &c., and with a short axle or trunnion e on each flanged end piece, and the skeleton frame f has a lubricating- compartment g, h at each end. Each lubricating-compartment has a number of vertical slots or recesses formed in or on its walls for the reception of the axles or trunnions of the haulage roller, for the antifriction rollers s, which carry the axles of the haulage roller, and for the covering-lid n of the compartment.
Patent GB-881103-A (GB)
Title: Improvements in or relating to apparatus for the spatial reproduction of sound with artificial reverberation
IPC: G10K15/10
Filed: 1958-01-31
Abstract: 881,103. Reverberation systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 31, 1958 [Feb. 5, 1957], No. 3283/58. Class 40 (4). A signal is reverberated by delaying it on a magnetic tape and passing the delayed signal through an echo box before its reproduction in a space where it combines with the original signal. As shown, the original signal is applied to a recording head 13 on an endless tape, with an erase head 15, and is subsequently picked off by a head 1, reverberated in an echo box 4 and reproduced by loud-speakers 6 and 8 in a space which also experiences the original signal from loud-speakers 7. Loud-speakers 10 may be fed from a pick-off 2 to give a primary echo and, depending on a switch 9, a further delayed signal from pick-off 3 may also be reverberated or a second primary echo be applied by way of loud-speakers 8. The echo box may also feed the loud-speakers 10. Frequencies below 1 kc. may be denied access to the echo box 4 but be fed back to recording head 13.
Patent GB-256284-A (GB)
Title: Improvements in or relating to variable speed gearings
IPC: F16H59/04
Filed: 1925-02-05
Abstract: 256,284. Brown, W. S. F., and Maina, J. Feb. 5, 1925. Blocks and shoes acting on drums; fluid-pressure.-Variable -speed gearing comprises -epicyclic trains entrained by applying brakes by hydraulic means. Each brake drum is grooved externally and is adapted to be gripped by a pair of pivoted brake shoes 16, Fig. 3, when oil under pressure is admitted to a cylinder 18.
Patent GB-371072-A (GB)
Title: Improvements in and relating to the manufacture of electric condensers
IPC: H01G4/22
Filed: 1931-02-02
Abstract: 371,072. Condensers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Clark, F. M. ; 12, Concord Parkway, Pittsfield, Massachusetts, U.S.A.) Feb. 2, 1931, No. 3314. Convention date, Feb. 1, 1930. [Class 38 (ii).] Tricresyl phosphate, after a preliminary purifying treatment by filtration, is used either alone or in conjunction with paper or other absorbent material as a dielectric material in condensers. Impregnation may take place under vacuum at room temperature and the paper may be first soaked in a water solution of an inorganic salt, such as calcium or sodium phosphate. Specifications 363,191 and 371,492 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use as dielectric of any organic ester particularly the phosphates having a dielectric constant of about 6 and a resistivity of at least 10<9> ohms per c.c. This subject-matter does not appear in the Specification as accepted.
Patent GB-797342-A (GB)
Title: Improvements in heating means for liquid storage tanks
Inventor: PARRIS CYRIL WRIGHT
IPC: B63J2/14
Filed: 1954-02-04
Abstract: 797,342. Heating liquids in bulk. GREEN & SON, Ltd., E. July 30, 1954 [Feb. 4, 1954], No. 3321/54. Class 64(3) In a tanker or other vessel having therein a liquid storage tank with steam heated pipes disposed near the bottom of the tank and connected at deck level to steam inlet and condensate discharge pipes, the heating pipes comprise a plurality of tubes 1 each connected at one end to a common steam inlet header 5 and at the other end either (as shown) to individual drain pots 7, or to a common outlet header, each drain pot 7 or the common outlet header embodying a dip pipe 8 therein having an open lower end disposed at a level below the heating tubes and arranged to deliver condensate to a riser 9 communicating With the condensate discharge at deck level. In the form shown, cast iron sleeves 2 are shrunk or otherwise affixed to the steel tubes 1.
Patent GB-193647-A (GB)
Title: Improvements in and relating to electrical indicating instruments
IPC: G01R11/02
Filed: 1922-02-04
Abstract: 193,647. British Thomson - Houston Co., Ltd., and Clinker, R. C. Feb. 4, 1922. Indicating; index hands and pointers.-In electrical indicating instruments having unbiassed pointers, the pointer is returned to zero by a pivoted lever 4 having an armature 3 secured thereon and operated by the energizing coil 2 of the instrument, the weighted end of the lever engaging with a crank 5 on the pointer spindle 1 when the coil is de-energized. Specification 163,097. [Class 37, Electricity, Measuring &c.], is referred to.
Patent GB-287995-A (GB)
Title: Improvements in the manufacture of triarylmethane dyes
IPC: C09B11/16
Filed: 1927-02-05
Abstract: 287,995. British Dyestuffs Corporation, Ltd., and Simmons, T. A. Feb. 5, 1927. Triarylmethane dyes.-In the manufacture of Lissamine green V (Colour Index No. 735) from 4 : 4<1>-tetraethyldiaminobenzhydrol and 2: 7- naphthalenedisulphonic acid, the hydrol is isolated in the form of its, 2 : 7-naphthalenedisulphonate. In an example, 4 : 4-tetraethyldiaminodiphenylmethane is oxidized with lead peroxide in order to form the hydrol. After removing the lead from solution, the 2 : 7-naphthalenedisulphonate is precipitated by adding sodium 2: 7-naphthalenedisulphonate and acidifying with sulphuric acid. To prepare the dyestuff, the naphthalenedisulphonate is washed and dissolved in sulpburic acid. The leuco dyestuff obtained by heating and pouring into water is then oxidized with lead peroxide in the usual manner. In preparing the 2 : 7-naphthalenedisulphonate anv soluble salt of 2: 7-naphthalenedisulphonic acid may be used.
Patent GB-876817-A (GB)
Title: Improvements in and relating to the production of dry printing ink
IPC: C09D11/02
Filed: 1959-01-30
Abstract: 876,817. Printing inks. DIETZ, V. Jan. 30, 1959 [Jan. 30, 1958], No. 3365/59. Class 146(3). An ink for flat, especially offset or direct, printing, without direct use of water, is prepared by adding to the basic ink components, 10-25% (based on the total weight of the mixture) of a colour stabilising agent composed of 8-10% of potassium sodium tartrate, bi-ammonium phosphate, or sodium or potassium phosphate, 90-92% ethylene glycol and less than 1 % of a glycol ether. Asphalt, and emulsifiers, e.g. naphthenic soap, lecithin, or calcium or sodium lignin sulphonate may also be added. An ink according to the invention consists of 45% offset varnish, 7% gloss varnish, 4% reflex blue, 2% conventional printing paste, e.g. magnesium carbonate, 6<SP>%</SP>, drying agent (e.g. cobalt linoleate), 18 % carbon black and 18% of colour stabilising agent (ethylene glycol and potassium sodium tartrate).
Patent GB-1087849-A (GB)
Title: Respirator, narcosis apparatus or the like having a delayed release safety valve
IPC: A61M16/00
Filed: 1965-01-26
Abstract: 1,087,849. Respiratory apparatus. C. G. D. ENGSTROM. Jan. 26, 1965 [Feb. 6, 1964], No. 3433/65. Heading A5T. Respiratory apparatus supplied with gas under pressure includes at least one safety valve, the or one safety valve being responsive to excess pressure and having a delayed opening mechanism. Gas entering the apparatus through flowmeters 11 is rhythmically compressed by a compressor 10 and flows to an attachment 15 for connection to the patients' lungs through a non-return valve 13, a liquid trap 18 forming a safety valve being located in the supply conduit 12. A safety valve 20 with delayed release is located in the exhalation conduit 16 or the supply conduits 12, 14 and comprises a slide 30 slidable in a sleeve 31 attached to the conduit, a branch 33 of the conduit opening into the sleeve and being normally closed by the slide. The slide is connected by a rod 28 to a piston 21 movable against a spring 35 in a cylinder 21 by pressure in a conduit 24. Conduit 24 is connected with the conduit 16 through a non-return valve 27 and a restriction 25 in parallel. In the event of an overpressure in the conduit 16, the piston moves the slide until the branch conduit 33 registers with a vent passage 32 in the slide, the delay in opening of the valve being determined by the initial distance between the branch conduit outlet and the registering portion of the vent passage. In alternative constructions (Figures 3 and 5, not shown), the piston is replaced by a diaphragm (71) responsive to an overpressure in the conduit to move a shaft (72) towards 'the stem (96) of a safety valve (92). The shaft opens the safety valve after a time delay dependent on the degree of overpressure and the initial distance between the shaft and the safety valve stem. The shaft attached to the diaphragm may form a displaceable contact (162, Figure 6) which makes the circuit of a solenoid (155) to open the safety valve (153), the distance travelled by the shaft before making the circuit determining the time delay of the valve. Alternatively, the safety valve comprises a piston (178, Figure 7) which is moved against a spring (179) in a cylinder (170) directly by the overpressure in the conduit to uncover vent openings (180) in the cylinder.
Patent GB-1317138-A (GB)
Title: Spectrally sensitized silver halide photographic emulsions
IPC: G03C1/12
Filed: 1970-05-15
Abstract: 1317138 Photographic silver halide emulsions FUJI PHOTO FILM CO Ltd 15 May 1970 [17 May 1969] 3500/73 Divided out of 1316493 Heading G2C Photographic silver halide emulsions having increased sensitivity in the specific adsorption wavelength of the silver halide and which also have an enlarged spectral adsorption wavelength region, have a mean silver halide grain size smaller than 0À18 micron or have at least 95% of the silver halide grains smaller than 0À2 micron in diameter and contain at least one sensitizing dye of the formula:- wherein Z<SP>1</SP> and Z<SP>2</SP> are each O, S, Se, N-R<SP>3</SP> or N-R<SP>4</SP>, C(R<SP>5</SP>)R<SP>6</SP> or Ch=Ch (in which R<SP>3</SP> and R<SP>4</SP> are each alkyl or substituted alkyl and R<SP>5</SP> and R<SP>6</SP> may together with the carbon atom to which they are attached form a ring, or are each alkyl substituted alkyl, aryl or allyl); V<SP>1</SP>, V<SP>2</SP>, W<SP>1</SP> and W<SP>2</SP> are each hydrogen or at least one is alkyl, alkoxy, OH, phenyl or halogen, or V<SP>1</SP> and V<SP>2</SP> or W<SP>1</SP> and W<SP>2</SP> together form a fused-on benzene ring; R<SP>1</SP> and R<SP>2</SP> are each alkyl or substituted alkyl; each L is CH or C(R<SP>7</SP>) (where R<SP>7</SP> is alkyl, alkoxy, OH or halogen), the L groups may be joined to each other through a polymethylene chain or an alkyl-, alkoxy-, aryl- or hydroxyl-substituted polymethylene chain; R' and R<SP>2</SP> may each be joined to L at the α-position through a polymethylene chain to form a ring; and m is 2 or 3.
Patent GB-422990-A (GB)
Title: A process and apparatus for the manufacture of threads, strings, bands, films and the like from elasin- and collagen-containing materials
IPC: A63B51/02
Filed: 1934-02-02
Abstract: 422,990. Catgut substitutes. NAAMLOOZE VENNOOTSCHAP KONINKLIJKE PHARMACEUTISCHE FABRIEKEN VOORHEEN BROCADES-STHEEMAN & PHARMACIA, 33, Stationsweg, Meppel, Drente, Holland. Feb. 2, 1934, Nos. 3523 and 3524. Convention dates, Feb. 11, 1933 and Sept. 13, 1933. [Class 109] [See also Groups IX and VIII] A process for the manufacture of threads, strings, bands, films, &c., such as surgical suture material, strings for violins or rackets consists of pressing through nozzles elastin containing and/or collagenous animal fibres in a pretreated condition, i.e. after teasing or swelling and then working - up the extruded material, the fibrous structure of the material being maintained throughout. Animal sinews are fed from a container 1, Fig. 1, through crushing rollers 2, 3, and a teasing machine 4 to a press cylinder 5, the material being extruded through a nozzle 7 which may contain a conveying screw 6. The extruded material is passed successively between rollers 8 which may be heated by steam or electricity, through a loop 9 where it acquires a preliminary twist and through a groove or channel 10 to a device 11 where the twist is completed. The thread or string then passes over a stationary guide 12 to a flyer 13 at which a number of threads may be doubled and finally to aseptic baths 14, 15. In a modification the material may be treated with a swelling agent, e.g. lactic acid in a container 16, Fig. 2, and then passed through crushing rollers 17, a teasing machine 18 and nozzles 19 to a shrinking bath 20 through which it is conveyed by an endless belt 21. The belt 21 may be formed as a sieve. The threads then pass through rollers 22, a drying device 23, a twisting device 24, and a second drier 25, to a flyer 26, and, if desired, a treating bath 27.
Patent GB-403825-A (GB)
Title: Improvements in excavators
IPC: E02F3/32
Filed: 1933-02-06
Abstract: 403,825. Excavators. DEMAG AKT.- GES., 64, Werthausertstrasse, Duisburg, Germany. Feb. 6, 1933, No. 3575. Convention date, Feb. 5, 1932. [Class 68 (i).] In back digging scoop-arm excavator with the scoop pivoted to the arm, the hoisting cable is connected with a braking or like device by which it may be held relatively to the jib and is also connected directly or indirectly to the scoop so that the latter may be moved by the arm while maintaining approximately the same angular position in space. In Fig. 1, the scoop arm 3 has an extension carrying a pulley 6 over which the hoisting cable 5 passes to the scoop 7 ; the cable 5 may be held by a clamp 8 and the scoop may then be moved by the arm 5 without dumping. A stop 19 limits relative movement of the scoop. In Fig. 2, the hoisting cable 5 is fixed to a bell crank 10 connected to a drum 14 with a fluid operated band brake 15; the bell crank is connected to the scoop by a cable or rod 11. The bell crank may be replaced by a sector or drum and other forms of linkage may be provided.
Patent GB-218697-A (GB)
Title: Continuous web multicolor or multi-impression printing press
IPC: B41F13/02
Filed: 1923-02-07
Abstract: ,218,697. Wolf, O. R. Feb. 7, 1923. Rotary machines ; drying-apparatus.-A multicolour or multi-impression web printing press comprises several distinct units, each unit including a printing couple and a registration roller for the web, the registration roller in at least one of the units being driven from the drive for the printing cylinders through differential gearing, the driving effect of which can be varied. A web A from a roll B passes through colour-printing units B, C, D, each comprising an etched cylinder 11 and co-operating impression cylinder 12 and a heated drying drum 14, and then travels back over these units to a type cylinder 11<c> where it is printed on the other side, finally passing round a drying drum 14<c>. The drying drums 14 are driven through the intermediary of variablespeed'friction drives.
Patent GB-684775-A (GB)
Title: Improvements relating to electrical recording apparatus
Inventor: PERRY CHARLES EDWIN
IPC: G01R13/08
Filed: 1950-02-13
Abstract: 684,775. Eddy-current brakes. EVERSHED & VIGNOLES, Ltd: May 1, 1951 [Feb. 13, 1950], No. 3650/50. Class 35. An electrical recording instrument has its moving parts damped by a flat metal vane 12 which moves in an airgap between the end of a permanent magnet bar 15 and an adjustable plug 16 of magnetic material mounted in a closed yoke 19 lying symmetrically around the magnet 15. The air gap 13 can be adjusted by turning a collar 18 which turns the plug 16.
Patent GB-167508-A (GB)
Title: Improved combination machine tool for drilling, milling, shaping and analogous operations
IPC: B23Q37/00
Filed: 1920-02-06
Abstract: 167,508. Wildey, E. M. Feb. 6, 1920. Drilling and milling machines; planing, shaping, and slotting.-A combination machine tool comprises a rotatable tool-carrying element mounted in a reciprocating element, either of which may be operated at will to perform drilling, milling, or shaping operations upon work carried by an adjustable table having feeding-mechanisms. The main frame 1 is hinged at 6 to a quadrant-shaped swinging frame 3, of which the upper surface 4 has guideways 8 on which is movably mounted a hollow ram 9 supporting a shaft 13 adapted to carry a cutter-mandrel 14a. Mechanism 15, 16, 17 is provided to give independent longitudinal feed for drilling purposes, while the face 10 of the ram may carry a holder for shaping-tool. The driving-shaft 48 journaled in the main frame drives through spur gearing a pinion 18, the boss of which forms a sleeve 19 surrounding a distancetube on the hinge bolt 6. To rotate the shaft 13 for drilling or milling operations, a splined clutch member 24 on the sleeve 19 is engaged with a loose bevel 20 to drive through spur and bevel gearing a pinion 33 slidably keyed on the shaft 13. For shaping, the clutch member is engaged with a loose pinion 22 to drive an adjustable oscillating link mechanism 39, 40, 41 to reciprocate the ram 9. The gearing is such that the ram may be adjusted by means of worm gearing 51, 52 to any position in a vertical plane without disturbing the driving-mechanism. A balancing- device 87 may be attached to the ram. The main frame has guideways 55 for vertical adjustment of a cross-slide 56 having horizontal guideways supporting the apron of a table 58 which is of box construction and carries a second table 2. The table is actuated from a shaft 59 and may be mounted on its apron by means of a pivot 88. A vertical shaft 66 driven from the countershaft 44 carries a sliding spiral gear 65 driving a gear 64, the bosses 67 of which form bearings on one side for a universally-jointed shaft 68 and on the other for hollow shaft 69. For milling, a clutch member on a rod 73 is actuated to drive the shaft 68 which through worm gearing and the constant mesh gears 61, 62, selectively controlled by a key 80, drives the shaft 59 and gives a continuous feed to the table. For shaping, the clutch member is actuated to drive the hollow shaft 69, which carries a slotted crank-disc operating the shaft 59 through lever and pawl mechanism to give an intermittent work-table feed.
Patent GB-247232-A (GB)
Title: Improvements in and relating to alternating current motors
IPC: H02K15/00
Filed: 1926-02-09
Abstract: 247,232. British Thomson-Houston Co., Ltd., (Assignees of Rutherford, P. H.). Feb. 9, 1925, [Convention date]. Alternating-current motors; conductors; cores. -The laminated rotor core 1 of an alternating- current motor is provided with a set of slots 2 near the periphery and a second set of slots 3 nearer the centre, and metal members are cast in the two sets of slots, those in the outer slots being integral with end-rings to form a squirrelcage winding, and those in the inner slots being separated from each other and from the endrings. The apertures 3 in the laminae are preferably larger than the apertures 2 and are punched so that the slot sides are slightly irregular, and into these irregularities the cast metal enters. The bars in the slots 3 therefore serve to clamp the laminae together, and further they are located at such a depth that very little flux is linked with them. The core is secured between the end-members 5, 6 of a revoluble mould, and molten aluminium or other metal which is poured in through the opening 10 at the top fills the slots 2, 3 and the end-ring grooves 9. After cooling, the metal of the end-rings adjacent the slots 3 is removed by machining so that the ends of the bars in these slots are flush with the ends of the core.
Patent GB-765006-A (GB)
Title: Fastenings for double doors
Inventor: JOHNSON HAROLD
IPC: F24C15/02
Filed: 1955-02-08
Abstract: 765,006. Catch fastenings. RADIATION, Ltd. Feb. 8, 1955, No. 3741/55. Class 44. [Also in Groups VI and XI] A double door fastening comprises the combination of a pivoted and spring-loaded catch h adapted to be mounted on an inner door part c and to engage a keeper m on the door frame a, another catch r adapted to be pivotally mounted on an outer door part d and to engage a keeper s on the first catch, and a pair of spring-loaded push buttons t, u arranged to actuate the second catch r, so that depression of one of the push buttons u serves to release the second catch, and depression of the other push button t serves through the medium of the second catch to release the first catch. The keeper m is a roller which is mounted on an attachment n which is secured to the frame by a screw o and which can be adjusted by a screw p to vary the position of the roller m in relation to the catch h. The push buttons t, u and the catch rare carried by a handle g which is attached to the door part d and the catch h is carried by an attachment j which is secured to the door part c.