baber/WOPTO huggingface dataset:
Patent GB-583048-A (GB)
Title: Improvements in means for preventing rats, mice and other vermin from entering dwelling houses, shops, warehouses and other buildings
IPC: A01M29/30
Filed: 1945-03-17
Abstract: 583,048. Rat and like excluders. IRELAND, J. March 17, 1945, No. 5002/44. [Class 5 (i)] [Also in Group X] Strips of metal having vertical slits are fitted to skirting boards and the like to prevent passage of rats and other vermin. The strips may be of inverted V-shape, slit along one or both edges and bent or curled to increase resilience.
Patent GB-744145-A (GB)
Title: Electrical contacts and process for making same
IPC: H01H1/021
Filed: 1953-02-23
Abstract: An electrical contact having a granular structure is formed from tungsten or molybdenum, with or without copper or nickel or silver, or a tungsten-molybdenum alloy, containing 0,1-1,5 per cent by weight of an oxide of one or more of caesium, barium, zirconium or thorium. During the production of the contact material up to 0,6 per cent of silicates of one or more of the alkali metals may be added to the tungstic and/or molybdic acid used as starting material.  In a process for the production of a contact of tungsten containing thorium oxide, thorium nitrate and potassium silicate and/or sodium silicate in the appropriate proportions are added to a solution of pure tungstic acid, the resulting powder being dried and reduced, e.g. in hydrogen, at up to 1000 DEG C.  The resultant powder is sieved and pressed into bars, the bars being pre-sintered in hydrogen and then sintered in a reducing atmosphere by passage of an electric current.  The sintered bars are forged and heated to 2200 DEG -2500 DEG C. in a reducing atmosphere for 3- 4 minutes followed by rapid cooling to promote grain growth to 1500-2000 grains/mm2.  The contact is then formed from the bar.  Specification 634,346 is referred to.
Patent GB-329301-A (GB)
Title: Improvements in or relating to the mounting of electric contacts
IPC: H01H11/06
Filed: 1929-02-14
Abstract: 329,301. Automatic Telephone Manufacturing Co., Ltd., and Smith, S. R. Feb. 14, 1929. Automatic exchange selectors. - Sets of contacts, such as the banks of automatic switches or the contacts controlled by relays, which are separated: by layers of insulation and clamped together are secured to the insulating layers by means, of an adhesive, such as photographia mounting tissue.
Patent GB-464526-A (GB)
Title: A process for the recovery of volatile solvents in extraction plants for oils and fats
IPC: C11B1/10
Filed: 1936-02-20
Abstract: In a process for the recovery of volatile solvents such as carbon bisulphide or carbon tetrachloride which escape from the condensers of solvent recovery apparatus used in plant for extracting oil and fat from bones, the bones are first utilized as an absorbing body for the volatile solvent and are afterwards, in the same apparatus, submitted to extraction treatment.  An apparatus for carrying out the process may comprise two or more vessels into which bones are periodically charged and discharged, the connecting pipes being arranged so that each vessel operates first as a solvent recovery vessel and then as an extractor, the mixture of air and solvent vapour which issues from the condenser of a vessel operating as an extractor being led into another of the vessels which operates as a solvent recovery vessel. Specification 186,040, [Class 32], is referred to.
Patent GB-583232-A (GB)
Title: Improvements in power transmitting devices
IPC: B64C25/24
Filed: 1944-03-20
Abstract: 583,232. Control of D.C. motors; thermal switches. GENERAL MOTORS CORPORATION. March 20, 1944, No. 5198. Convention date, March 31, 1943. [Classes 38 (iii) and 38 (v)] A reversible electric motor is adapted to drive a screw shaft bearing a load-carrying nut, but motor having a field winding under the control of switches such that when operating against the load the motor is connected as a series machine and when operating with the load the motor is connected as a shunt machine. The invention is described as applied to the retractable landing-gear for aeroplanes of Specification 575,263, [Group XXX]. To raise the landing gear a circuit breaker 50 is closed and a switch 51 moved to engage a contact 52, whereby an electromagnetic switch 55 is energised through a switch 54 which is closed only when the aircraft is off the ground. A contact 59 closes to operate the motor in one direction as a series machine. A contact 58 also closes to energise a coil 31 of an electromagnetic clutch through a relay 91. A driving disc 32 of the clutch attracts a disc 33, which is slidably coupled through gearing (not shown) to a screw-shaft 28 to free it from a braking ring 30 and couple the shaft 28 to the motor. A nut 29 moves upwardly causing retraction of the landing-gear until it opens a switch 105 to de-energize the relay 55 and stop the motor. A thermo-electric element 76 of a delayed-action relay 70, which was activated, when the switch 51 was operated, having meanwhile closed contacts 82 and 87, maintains the relay 91 and the clutch energized until the element 76 cools and gravity operates the shaft 28 in reverse and the landing-gear drops into a nesting-position. The delayedaction relay, Fig. 4, comprises a switch lever 73 connected to a current-carrying wire 76 and a spring 78. The lever carries a resilient contact 80 having a finger 84. When the wire 76 expands the lever 73 will move under the action of the spring until contacts 82 and 87 are closed with snap action by the finger 84. Similar reverse movement obtains when the wire 76 contracts. To lower the landing gear the switch 51 is moved to engage a contact 53. An electromagnetic switch 255 then connects the motor and field in parallel and the landing gear is lowered until a switch 205 is opened to de-energize the relay 255. A switch 115 may energize the winding 31 to release the screw gear from the brake-ring and permit gravitational-operation of the landing-gear if the electrical operating means is damaged. A pilot light 110 and thermal protective device 120 are provided.
Patent GB-700017-A (GB)
Title: Combustion chambers for prime movers
Inventor: COLLINSON ERIC SAMUEL
IPC: F23R3/06
Filed: 1951-03-05
Abstract: 700,017. Generating combustion products under pressure. LUCAS (INDUSTRIES), Ltd., J. Feb. 8, 1952 [March 5, 1951], No. 5232/51. Class 51 (1) In an air jacketed type of combustion chamber for a prime mover such as a gas turbine or jet propulsion engine, the flame tube comprises a pair of co-axial cylindrical parts a, b of substantially equal diameter which are spaced apart to form a gap c corresponding to a region on which soot is liable to be deposited. The gap is enclosed by a sleeve d of greater diameter than the cylindrical parts and the sleeve is secured at its ends to the cylindrical parts which it overlaps to form annular air passages e therebetween. Apertures f are formed near the ends of the sleeve for admission of air to the annular passages from the surrounding air jacket. Other apertures h may also be formed in the sleeve.
Patent GB-185767-A (GB)
Title: Improved device for preventing splashing from the wheels of vehicles
IPC: A47K11/12
Filed: 1921-11-03
Abstract: 185,767. Cooke, W. H. Nov. 3, 1921. Lateral-splash guards. - Skate-like members 15 of metal-strengthened rubber are supported on strips 9, 10, which are adjustably mounted by bolts 13, 14 on fork-pieces 7, 8 which are attached to the back-axle housing, to the front fork, or to other fixed part by a clamp and member 3 which is prevented from rotating by flats 6.
Patent GB-1465407-A (GB)
Title: Actuators
IPC: F16K31/56
Filed: 1974-02-05
Abstract: 1465407 Valves; friction clutches; spring mechanisms; band brakes J H FITZWATER 5 Feb 1974 [9 Feb 1973] 05300/74 Headings F2V F2C F2E and F2S [Also in Division H2] An actuator for a valve 12 comprises an electric motor 36 coupled to the valve actuating shaft 24 by an electrically-operated clutch 124, and a spring 158 which is wound up when the valve is moved to an open position and which can return the valve to closed position on electrical failure disengaging the clutch. Motor output shaft 46 which is driven via gearing 40 has a flat spring 156 secured to and surrounding the end thereof and surrounding an end 148 of an actuator output shaft 82. On energization of a coil 126 simultaneously with energization of the motor an armature 138 is moved against springs 146 to cause the inclined surface 142 to force the spring 156 against the shaft end 148 and thus couple shafts 46, 82. One end of spring 158 is anchored in a slot 166 in the housing while the other is anchored in a slot 160 in a plate 84 fastened to the shaft 82. Output shaft 82 carries a shaft 71 having cams 64, 66 secured on its end and actuating electric switches 74, 72 which de-energize the motor at the end of a valve opening movement and operate a valve position indicating means respectively. The valve is held in actuated position on deenergization of the motor by a brake band 208 engaging a drum 214 on an extension 216 of the motor shaft. The band is released simultaneously with energization of the motor by a solenoid 174 which on energization pivots a lever 200 to in turn pivot against a spring bias 206, a plate 202, to which the ends of the band are secured.
Patent GB-803110-A (GB)
Title: Improvements in or relating to electric heating devices for textile yarn processing apparatus
IPC: D02G1/02
Filed: 1955-01-04
Abstract: 803,110. Electricheating for yarn. SEEM, W. A., STODDARD, N. J., TECCE, F., and BERGER, H. P., [trading as PERMATWIST CO.]. Jan. 4, 1955 [Jan. 4, 1954], No. 5363/57. Divided out of 803,106 [Group IX]. Class 39(3) [Also in Group IX] An electric heating device for processing thermoplastic yarn has a small bore tube surrounded by a coil of resistance wire with a pitch that increases from both ends towards the middle of the tube, means being provided for maintaining the temperature of the tube substantially constant when heated by the wire. The tube 32 is preferably of non-ferrous material and is exteriorly insulated with glass or other insulating material and surrounded by a coil 34 of resistance wire. A thick-walled jacket 35 of electric and thermal insulation material, such as fibrous glass or vermiculate, surrounds the tube 32 and is encased in a metal shell 36 which has end covers, 37 and asbestos or like discs 38. To prevent cutting of the tube 32 by yarn passing through it, porcelain or other wear resistant bushings are provided. Power for the coil 34 is taken from the bus bars 12, 13 in circuit with an induction voltage regulator automatically controlled by a thermally responsive sensing means 28. Specifications 803,105 and 803,107 [both in Group IX] are referred to.
Patent GB-955948-A (GB)
Title: Improvements in or relating to a bearing assembly for a gas turbine plant
IPC: F02C3/08
Filed: 1960-06-24
Abstract: 955,948. Bearings. C. C. HILL. June 24, 1960 [June 26, 1959], No. 5409/63. Divided out of 955,947. Heading F2A. [Also in Division F1] A bearing assembly for a gas-turbine engine comprises a sleeve and bearings for rotatably mounting a shaft in a bearing housing, the housing and bearing assembly being constructed and arranged to have a clearance therebetween, resilient means being provided for supporting the bearing assembly within the housing, also friction means for damping the oscillations of the bearing assembly relative to the bearing housing, the resilient means being non-linear so as to provide a progressively greater resistance to oscillations with increased speed. The engine shown comprises an air compressor impeller 24 and a turbine rotor 25 mounted on a common shaft 26 which is rotatably mounted within a bearing housing 44 by means of a roller bearing 107 and a ball-bearing 108. The bearing assembly comprises a sleeve 101 which is supported resiliently within the bearing housing 44 by means of a pair of 0-rings 103, 111, one at either end of the sleeve. The sleeve 101 is formed at one end with a flange 102, and a spring washer 104 is disposed between the flange 102 and the adjacent end of the bearing housing. A lock-nut 112 is secured at the other end of the sleeve, a washer 113 and locking washer 114 being disposed between the lock-nut 112 and the adjacent end of the bearing housing. The washers 104 and 113 act as frictional dampers to damp out any radial vibrations which may occur. Within the sleeve 101, the outer race of roller bearing 107, a lubricating oil distributing member 109 and the outer race of ball-bearing 108 are secured by means of the look-nut 112. A segmental carbon-type sealing ring 105 is also secured within the sleeve 101 by means of a circlip 106. Oil is supplied through ducts in the bearing housing to the annular groove 135 in the distribution member 109 and passes from there through ducts 137, 139 to the bearings 107, 108, the oil then discharging through ducts in the housing back to the pump. The compressor impeller 24 is mounted on a sleeve 116 which is in splined connection with the shaft 26. The sleeve 116 is formed with a flange which provides a labyrinth seal with the bearing housing. A member 119 secured to the bearing housing provides a labyrinth seal with a flange formed on the turbine rotor disc 25.
Patent GB-904037-A (GB)
Title: Forming cement or concrete articles having decorative surface designs
IPC: B44C3/04
Filed: 1960-02-16
Abstract: 904,037. Moulding ornamented concrete; colouring concrete. HOLLOWAY, A. L. Feb. 15, 1961 [Feb. 16, 1960], No. 5477/60. Classes 22 and 87(2). Decorative designs are formed in the surface of concrete by casting a mass thereof over strips of extruded cement 4 placed on grease layer 3 in mould 2 and contrasting in colour or otherwise in surface appearance from the mass. Specification 904,038 is referred to.
Patent GB-635275-A (GB)
Title: Improvements in a method of production of sealing discs for bottle and like closures from composition cork
IPC: B27K7/00
Filed: 1947-02-25
Abstract: 635,275. Proofing permeable materials. AKTIEBOLAGET WICANDERS KORKFABRIKER. Feb. 25, 1947, No. 5482. Convention date, Feb. 28, 1946. [Class 140] [Also in Group XVII] Sealing discs for bottle or like closures are made by dipping rod-like blanks of composition cork in a bath of impregnation agent, e.g. melted paraffin wax, or rubber solution, evacuating air from cavities of the rods, before or after dipping, by means of vacuum, and then subjecting the rods, while in the bath, to atmospheric or higher pressure so that the cavities become filled, and thereafter cutting the rods crosswise into discs to which are applied " spots " of paper, tinfoil or the like. By controlling the pressure, the rods are impregnated to a certain depth so that the discs have a filled circumferential layer and an unfilled core which is covered by said " spot ".
Patent GB-341753-A (GB)
Title: A new or improved lamp-post
IPC: F21S13/10
Filed: 1930-02-19
Abstract: 341,753. Street lampposts. SPENCER, Ltd., J. and SPENCER, SIR T. H., Globe Tube & Engineering Works, Wednesbury, Staffordshire. Feb. 19, 1930, No. 5511. [Class 20 (i).] A street lamppost comprises a tapering steel tube a embedded in the ground and carrying the lamp fitting. A reinforcing tube c encloses the lower part of the tube a to which it is connected by flange collars d, e. The collars d, e, may be spot-welded to the tubes a, c. The lower end of the tube c extends less distance into the ground than the tube a, and, at ground level, may be protected by an ornamental cast or pressed wheel guard f of hollow rim formation. The space between the tubes a, c may be filled with concrete or cement, or may be drained through apertures g in the collar e. A supply pipe b for gas may extend up through the body.
Patent GB-779981-A (GB)
Title: Preparation of phthalaldehydic acid from pentachloroxylene
Inventor: HEAD JAMES D
IPC: C07C51/093
Filed: 1956-02-22
Abstract: Phthalaldehydic acid is made by hydrolysing pentachlor-o-xylene of the formula <FORM:0779981/IV(b)/1> by heating same in admixture with an aqueous solution containing a catalyst material consisting of (1) one or more metal halides of the group consisting of zinc, ferric and cadmium chlorides and bromides, or (2) a sulphonated aromatic hydrocarbon of the benzene or naphthalene series or a mono- or di-nuclearly halogenated derivative thereof, the said hydrolysis being carried out at 90-250 DEG  C. with a 4-35 per cent by weight metal halide solution, or at 90-120 DEG  C. with an 8-45 per cent sulphonic acid solution. The aqueous solution may contain a hydrohalic acid in addition to the catalyst.  In examples, pentachloro-o-xylene is reacted with (1) aqueous hydrochloric acid and zinc, ferric, or cadmium chloride, (2) water and zinc chloride, (3) aqueous hydrobromic acid and zinc bromide, (4) water or hydrochloric acid and benzene or toluene sulphonic acid.
Patent GB-621442-A (GB)
Title: Improvements connected with spoked wheels
IPC: B60B1/08
Filed: 1947-02-26
Abstract: 621,442. Wheels for vehicles. FORD, R. C. Feb. 26, 1947, No. 5518. [Class 144 (i)] A spoked wheel comprises a hub having a plurality of undercut slots formed in its periphery and a plurality of spoke members so arranged that adjacent inner ends of the spoke members are both secured in position in one slot by locking means. A bossed hub member 1 and a co-operating ring hub member 2 are provided with transverse peripheral slots 5 arranged to form closed slots when the two members 1, 2 abut together. The closed slots register with transverse through holes 4 in the two hub members, each slotted hole forming a housing for the ends of adjacent spoke members. The spoke members, which are formed from sheet metal, are U-shaped with a narrow rim abutting portion 6 and curved ends 9 to conform with the holes 4, the radial portions 8 being swaged as at 11 for strength. Pins or rivets 10 may be used to secure adjacent spoke ends 9 in each slotted hole 4 and the portions 6 may be welded to a rim 7, said portions 6 being curved to conform with the curvature of the rim. The rim 7 may be channelled in section to position the spoke members laterally. The assembled hub 1, 2 may be cut away as at 12 for lightening purposes, or alternatively each of the members 1, 2 may be formed with blind transverse holes between the through holes 4, which form closed lightening pockets when the hub members are assembled.
Patent GB-1361203-A (GB)
Title: Device for advancing imperforate photographic film
IPC: B26F1/00
Filed: 1971-05-27
Abstract: 1361203 Strip threading devices EASTMAN KODAK CO 27 May 1971 [27 May 1970] 05618/74 Divided out of 1361201 Heading B8R [Also in Division G2] An automatic threading mechanism for advancing an imperforate film strip at a rate corresponding to the perforation pitch includes a shuttle arm 240<SP>11</SP> (see Fig. 8) pivoted about a movable point 242<SP>11</SP> and having a strip engaging device at one end A, pressing the strip against a reaction member 431<SP>1</SP>, and an eccentric drive at its other end. As shown in Fig. 8 the pivot point 242<SP>11</SP> is moved by rotation of cam 457 linked to the eccentric drive 415<SP>1</SP>. This provides a skip feed, the ratio of gears 451, 453 determining the percentage of driving strokes performed by the arm 240<SP>11</SP>. In a modification, Fig. 7 (not shown), the arm 238<SP>11</SP> has a fixed pivot instead of moving joint 463. Skip feed is therefore not possible. In other embodiments, Figs. 9, 10 (not shown), the shuttle arm is pivoted at the end where it engages the strip instead of at its mid point as shown. Skip feed is also possible with such an arrangement (Fig. 10). In a modification the shuttle includes an arm 240 pivoted by pin 242 and deriving motion from an eccentric portion on drive shaft 69. The opposite end of the arm 240 has a polyurethane pad which presses the film against rollers (295), Fig. 4 (not shown). Side guides for the film are arranged adjacent the rollers (295). The shuttle is activated by pivoting of plate 232 about rod 228 so that the arm 240 can follow the shaft 69. This is achieved by energizing a solenoid (not shown).
Patent GB-827346-A (GB)
Title: Means for measuring the resistance of electrode circuits in electrode melting furnaces under operation
IPC: G01R27/02
Filed: 1958-02-21
Abstract: 827,346. Electric tests. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 21, 1958 [March 5, 1957], No. 5664/58. Class 37. The resistance of an electrode circuit which passes a melting current through material in a furnace is measured by means of a quotient meter having a field coil and a pair of cross-coils, thearrangement being that the field coil and one of the cross-coils carry a current proportional to the current to the electrode while the other crosscoil carries a current proportional to the voltage between the electrode and the furnace. As shown, electrodes X, Y, Z are delta-connected and supplied from the secondaries of transformers 11, 12, 13 having star-connected primaries. In each of the supply phases is a current transformer 14, 15, 16 which are deltaconnected and which feed further star-connected current transformers 17, 18, 19. Means for adjusting the transformation ratios of transformers 11, 12, 13 and 17, 18, 19 are coupled together. In the case of electrode Z a current proportional to the electrode current is fed to the fixed coil 21 of the ratio meter and through a further current transformer 27 to one of the crossed coils 22. The other crossed coil 23 is fed with the voltage developed between electrode 23 and earth. Thus the quotient meter gives the ratio of the active power and the square of the current and may be calibrated in ohms. The scale of the instrument may be equalized by making the angle 'between the crossed coils less than 90 degrees.
Patent GB-123216-A (GB)
Title: Improvements in or relating to Electrical Speed-controlling Apparatus.
Inventor: BIBIRE VICTOR
IPC: H01H35/10
Filed: 1918-04-04
Abstract: 123,216. Martin, J. A. April 4, 1918. Hand-rubbers.-A hand-rubber comprises a roller G mounted to rotate in a wood or other frame A, transverse flutes or corrugations being formed on the roller by spaced metal &c. rings J<2>. The spindle may be in one length, or be formed by pins driven into the ends.
Patent GB-424601-A (GB)
Title: Improvements relating to the production of electrical insulating materials
IPC: C04B35/16
Filed: 1934-02-21
Abstract: In making an electrical insulator of a ceramic nature from a magnesium silicate mass comprising from about 70 to 90 per cent soapstone or talc and an alkaline-earth flux, the flux is one or more of the oxides or oxide-yielding compounds of beryllium, calcium, strontium or barium, alumina as such being excluded from the mass, while clay, if employed at all, is present in an amount less than that of the flux.  The product after firing is a densely-sintered and substantially glass-free structure of well-formed large crystals with a comparatively low dielectric loss.  Preferably, the clay amounts to less than 40 per cent of the amount of the flux.  An example of a suitable mass is: 83 soapstone or talc, 9 barium carbonate, 4,5 calcium carbonate, 3,5 clay-like material.  Three other examples are given. Specifications 347,486 and 367,114 are referred to.