baber/WOPTO huggingface dataset:
Patent GB-414670-A (GB)
Title: Improvements in or relating to electric blasting fuses
IPC: F42B3/103
Filed: 1933-02-04
Abstract: 414,670. Blasting -fuses. GLOSSL, K. SCHAFFLER-, 138, Lerchenfelderstrasse, Vienna. Feb. 4, 1933, No. 11572/34. Divided on 414,147. [Class 9 (i).] The fuse case 1 of an electric blasting-fuse is closed by a lead plug 2 which is secured hermetically to the case and to the electric conductors 4 passing through the plug by pressing continuous circumferential grooves 5 into the case and plug after assembly.
Patent GB-967010-A (GB)
Title: A method of cleansing the surfaces of tanks, chambers, pipe lines, heat exchangers and like confined spaces, and equipment for carrying out such method
Inventor: BROCKMULLER KLAUS
IPC: C23G3/00
Filed: 1962-03-27
Abstract: 967,010. Cleaning tanks. INTERNATIONAL GROOM CO. G.m.b.H. March 26, 1963 [March 27, 1962], No. 11689/62. Heading A4F. [Also in Division F2] In a method of cleaning oily deposits from the interior surfaces of a ship's or other storage tank, the surface of the tank 3 is washed with a cleansing liquid, e.g. by means of a sprayer nozzle system 25, and the mixture of cleansing liquid and removed oily deposits is passed by a pump 4 to a compensating tank 1 from which it is passed by a pump 13 to a seperator, e.g. comprising a heating unit 8 and a separating unit 9, the mixture of cleansing liquid and removed oily deposits being separated and/or permitted to stratify in the compensating tank 1 and/or in the separator 8, 9 into oil cleansing liquid and bottom sediments, the arrangement being such that despite any variations in the rate of flow into the compensating tank 1 the rate of flow into the separator may be kept substantially constant. In the apparatus illustrated separated oil is returned from the separator 8, 9 through a pipe 20 to the compensating tank 1, and sediments are withdrawn therefrom through valve controller lines 23, 24. The cleaning liquid is passed by a pump 26 from the separator 8, 9 to the sprayer 25. Gases may be released from the system through vent pipes 21, 22, 23. An alternative system is described in which are provided a filter (at the inlet to the compensating tank), a reservoir for the recovered oil, and a supply tank for introducing cleaning compounds into the nozzle supply line. Specifications 696,631, 742,844, 808,901, and 917,481 are referred to.
Patent GB-1465244-A (GB)
Title: Deep depletion insulated gate field effect transistors
IPC: H01L21/86
Filed: 1975-03-20
Abstract: 1465244 IGFETs RCA CORPORATION 20 March 1975 [19 April 1974] 11701/75 Heading H1K The channel region 102 of a deep-depletionmode IGFET 78 formed in a thin semi-conductor layer 98 on an insulating substrate 72 comprises an upper layer 103, relatively highly doped (e.g. #10<SP>16</SP> atoms/cm<SP>3</SP>) but less so than the source and drain regions 42, 44 which are of the same conductivity type as the layer 103, and a lower layer 104, also of the same conductivity type as the upper layer 103 but more lightly doped (e.g. # 10<SP>13</SP> atoms/cm<SP>3</SP>-almost intrinsic). In the embodiment the deep-depletion-mode IGFET 78 forms a pair with an enhancement mode IGFET 76 formed identically except that the source and drain regions 82, 84 are of the opposite conductivity type. The substrate 72 is preferably of single crystal (1102) sapphire, Crdoped GaAs or spinel, permitting epitaxial deposition of the Si layer from which the devices 76, 78 are formed. The higher doped upper layers 87, 103 of the channel regions are formed by ion implantation. For n-type devices as shown the gate electrodes 96, 108 are preferably of p<SP>+</SP> polycrystalline Si. For p-type devices Al or n<SP>+</SP> polycrystalline Si is used.
Patent GB-889610-A (GB)
Title: Improvements in or relating to actuating mechanism for the cage doors of lifts
IPC: B66B13/08
Filed: 1960-04-04
Abstract: 889,610. Lift door operating appliances. INVENTIO A.G. April 4, 1960 [April 6, 1959], No. 11753/60. Class 65(1). The levers (not shown) which move the lift cage door are operated by the connecting rods 40 11 of a crank wheel 8 driven by a motor .2;: and an elasticallyyielding -stop which is pretensioned .in the closed position of the doors, corresponding to a dead-centre position of the crank, tends to move the connecting rods in a door-opening direction againsi the action of the motor which remains switched on during travel of the lift. The stop comprises a spring 18 surrounding a slidable rod 14 pivotally connected to a lever 12 freely rotatable on the crank-shaft 9 and a member 19 rotatable with the crank wheel which strikes the lever 12 just before the dead-centre position is reached so as to load the spring. In the event of a power failure the crank is displaced from the dead-centre position by the spring to enable the doors to be opened manually. Specification 889,609 is referred to.
Patent GB-1181376-A (GB)
Title: Electrodeposition of Nickel
Inventor: DIBARI GEORGE ANGELO
IPC: C25D5/00
Filed: 1967-03-14
Abstract: 1,181,376. Electro-depositing nickel. INTERNATIONAL NICKEL Ltd. March 14, 1967 [March 24, 1966], No.11965/67. Heading C7B. Bright nickel is electro-deposited from an aqueous bath containing 50-140 g/1 Ni as nickel sulphamate, 0À3-1À5 g/1 Co, 0-10 g/1 S04 ion, 0-5 g/1 Cl ion and 30-40 g/1 H 3 BO 3  as a buffer,  and having a pH of 3À5-4À5 and a temperature of 49-60‹C. The cathode current density is 5-100 A.S.F. and the bath is subjected to anodic oxidation with a subsidiary polarized insoluble anode, e.g. of C, Pt, platinized Ti or Ta, through which at least 2À 5% and preferably not more than 6% of the total plating current passes, to liberate oxygen from the electrolyte. The Co concentration can be maintained by periodically adding cobalt sulphamate to the bath, passing a proportion of the total plating current e.g. 1-10% through a separate anode of pure Co placed in the bath, or using an active Ni plating anode containing 1-10% Co and 0À01-0À03% S. The content of Co in the deposit may range from 6À53 to 19À6%
Patent GB-1427458-A (GB)
Title: Apparatus for conveying eggs and the like
IPC: A01K43/00
Filed: 1974-03-18
Abstract: 1427458 Conveying eggs H NOGUCHI 18 March 1974 11987/74 Heading B8A Eggs are fed from a supply 4 to a discharge gate 5 by means of radially extending rollers 3 carried by a rotary shaft 1, the rollers 3 also rotating about their own axes during movement. To cause rotation of the rollers 3 a guide ring 12, contacting the rollers, is provided. Eggs are deflected to the gate 5 by a guide 14 and are directed into either of two paths L, L<SP>1</SP> by a pivotal guide 13. The eggs are conveyed along the paths by rollers 15 carried by endless chains and having recesses 15<SP>1</SP> for seating the eggs.
Patent GB-1119168-A (GB)
Title: Marine seismic detonator
Inventor: PATTERSON EDWARD MERVYN
IPC: F42B3/192
Filed: 1966-03-18
Abstract: 1,119,168. Marine slismic detonator. IMPERIAL CHEMICAL INDUSTRIES Ltd. 20 Feb., 1967 [18 March, 1966], No. 11988/66. Heading F3A. An electric detonator for underwater use is rendered harmless if not fired within a given time by water entering the casing 11 through at least one aperture 12 closed by a particulate water-gellable colloid 14, e.g., gelatine, polyvinyl alcohol, maleic anhydride/vinyl copolymer, or water soluble cellulose ether. The aluminium/manganese alloy casing 11 contains a base charge 15 of PETN, a priming charge 16 of lead azide which is ignited when a current is passed through a bridge wire 18 embedded in a match-head composition 19.
Patent GB-1300869-A (GB)
Title: Polymer composition useful for protecting metal surfaces against rusting
Inventor: NISHIMURA SHOICHI
IPC: C08K5/19
Filed: 1970-03-12
Abstract: 1300869 Laminates AICELLO CHEMICAL CO Ltd 12 March 1970 12038/70 Heading B5N [Also in Division C3] Laminated films for corrosion resistant packaging comprise films of an olefin polymer composition containing a dicyclohexyl ammonium salt of an aliphatic carboxylic acid, optionally together with a further corrosion resisting additive selected from organic monoamine nitrites, polyhydric alochol esters of aliphatic carboxylic acids, rosin amine salts, alkyl amides of aliphatic carboxylic acids and mixtures of urea, alkali metal nitrites and alkanolamine benzoates, laminated to at least one of synthetic resin films, aluminium foils, paper and regenerated cellulose sheets. Suitable synthetic resin films are of optionally stretched polypropylene, polyester, nylon, polyethylene, polycarbonate, polyvinyl chloride, polyvinylidene chloride and polyvinyl alcohol. Laminates containing 2 to 4 layers are specified and in examples films of polyethylene are coated with lacquers comprising polyester and isocyanate in ethyl acetate and toluene, polyethylene films containing (30) dicyclohexylammonium caprylate being bonded to unstretched polypropylene film, containing (31) dicyclohexyl ammonium caprylate, cyclohexylamine nitrite and glycerol monolaurate bonded to regenerated cellulose film, containing (32) dicyclohexyl ammonium caprylate, rosin amine benzoate and N-hexyl lauramide bonded to polycarbonate film, containing (33) dicyclohexyl ammonium palmitate bonded to polyester/biaxially stretched polypropylene, and oontainng (34) dicyclohexyl ammonium acetate bonded to low density polyethylene/paper/polyester.
Patent GB-1106954-A (GB)
Title: High strength, low density gypsum products and a process for their production
IPC: C04B28/14
Filed: 1965-03-22
Abstract: Cast gypsum articles are produced by a twostage process in which the calcined gypsum is first mechanically disposed in water at an intensity and for a time sufficient to increase the surface area of the unhydrated calcined gypsum in the slurry, and then an accelerator is added and the slurry is cast while the gypsum is still substantially unhydrated.  The amount of accelerator must be sufficient to produce a temperature rise set in not more than 15 min.; this is usually 0.1-1.25% by weight of the calcined gypsum. Suitable accelerators are potassium, aluminium, zinc or ammonium sulphates, or gypsum dihydrate, e.g. as land plaster or freshly ground cast gypsum block.  Preferably the calcined gypsum is dispersed to a surface area of at least 12,000 cm.2/g., and has a combined moisture content prior to casting less than 9% by weight.  A keratinaceous retarder, usually in an amount 0.0025-0.015% of the gypsum, may be present in the first dispersion stage; so also may reinforcing materials such as cellulose, synthetic plastic and glass fibres, binders such as flour or starch, and dispersing agents such as ammonium lignosulphonate. A lightweight cellular gypsum is formed by the incorporation of a premixed foam after the dispersion step, preferably in a period of less intense mixing in which the accelerator is also added.  Gypsum board may thus be produced with a density of 35-50 lbs./cu. ft.
Patent GB-332288-A (GB)
Title: Improvements in or relating to centrifugal machines
IPC: B04B9/12
Filed: 1929-04-18
Abstract: 332,288. Rushton, J. L. April 18, 1929. Driving, suspending, balancing.-In a drive for a centrifugal spinning pot, the spindle, or the hollow shaft within which the spindle is mounted, is supported against end thrust by a liquid abutment which forms part of the continuous lubrication system. The spindle 10 which supports the pot is reduced in diameter at its central part 15 to render it flexible, and is enclosed bv the hollow shaft 11, a tight fit being obtained at the lower end 12 of the shaft. The two parts are secured together by a pin 14, and sufficient clearance exists between the central parts of the spindle and the shaft to permit lateral movement of the spindle and circulation of the lubricant. The shaft 11 carries the rotor 17 of the driving motor and is supported in ball and roller bearings 19, 21, the former 19 of which is supported in a cylindrical footstep 20. The lower end of the spindle 10 is provided with a helical groove 27 and fits with a small clearance inside a bore 24 in the footstep 20. The lubricant, which is first supplied through the passage 46 passes into a trough 32 in the casing 18, from which it overflows and passes through the bearing 19 into the cavity 23 in the footstep 20. Its passage into the chamber 26 in the bore 24 is assisted by the rotation of the groove 27, and in the chamber it forms an abutment for the shaft and spindle. From the chamber 26 the lubricant passes inside the spindle 10, through the passages 29 to the inside of the shaft 11. When it overflows from the shaft, it passes through the roller bearing 21 and is caught by a sloping shield 36 and led to the passages 44 from which it passes to the trough 32 again. The cap 31 of the casing has a baffle 30 which stops any lubricant thrown out from the top of the shaft 11 by centrifugal force. After the screws 50, 64 and the nut 62 have been released, the cap 31 can be removed and the parts 10, 11, 17, 20, 22 with the bearings 19, 21 can be removed as a unit. Three bosses 53 on the casing rest on rubber bushes 54 held by studs 55 screwed into the bosses and acting as dowel pins resting in holes 59 in bosses 60 on the base plate. The complete apparatus can be raised until the dowel pins are clear of the base plate, turned through a small angle and then lowered through the aperture in the base plate. Recesses 61 are provided in the base plate to permit the passage of the bosses 53 and the bushes 54. Specification 297,011, [Class 12 (i), Bearings &c.], is referred to.
Patent GB-294716-A (GB)
Title: Improvements in and connected with wardrobes
IPC: A47B61/00
Filed: 1927-05-06
Abstract: 294,716. Everitt, J. May 6, 1927. Wardrobes. - In a wardrobe the whole of a side and part or the whole of the front are formed as hinged doors, the free edges of which abut when closed, the wardrobe being constructed without a corner post at the meeting edges of the doors d<2>, d<3> in order that free access to the interior is obtained. In modifications one or both sides are hinged to open, and single or double front doors are fitted. Specification 7460/11 is referred to.
Patent GB-1133477-A (GB)
Title: Electrical switch assemblies
IPC: H01H13/58
Filed: 1966-03-18
Abstract: 1,133,477. Switches held set and freed mechanically. LITTON INDUSTRIES Inc. 18 March, 1966 [1 April, 1965], No. 12173/66. Heading H1N. Depression of a push-button 100 and drive cylinder 22 causes downward movement of a cam actuator 28, with fingers 29 riding on ramps 66 of a rotatable cam member 50, and consequential rotation and downward movement of the cam member 50, and release of button 100 allows a spring 31 to restore cam actuator 28 while cam action occurs between ramp 66 of cam member 50 and inwardly projecting guide surfaces 21 on the upper portion 18 of insulating cylinder 17 such that cam member 50 continues its rotation until surfaces 21 abut cam protrusions 66a and the member 50 is retained in its lower position against the pressure of a spring 42. This downward movement of cam member 50 causes movement of a moving contact assembly 32 such that spring contact fingers 35 thereon move relatively to fixed contacts such as 51, 52, 53, in grooves 47, 48, 49, Fig. 3 (not shown), of an insulating member 45. A second depression of button 100 causes actuator fingers 29 to engage protrusions 66a and rotate cam member 50 until fingers 29 fall into slots 65 between ramps 66, when cam member 50 is released and, upon release of button 100, the cam member 50 and cam actuator 28 assume their original positions, Fig. 1, and contact assembly 32 assumes its original position, under the force of springs 31, 42, wherein guide surfaces 21 are in the slots 65. The contacts 51, 52, 53, have different lengths and positions on the member 45 to provide for normally open, continuously engaged, or normally closed contacts. The contact fingers 35 are arranged in sets of three, or as required, see Fig. 3 (not shown). A circuit is completed to a lamp 74 when button 100 is actuated, a centre lamp terminal 76 making contact through a pin 71, spring 72, pin 73 and spring 43 with a terminal pin 85 in member 45, while shell terminal 75 of lamp 74 is in contact via drive plunger cup 23, spring 31, cam actuator 28, eyelet 37 and spring 42 with a terminal pin 84. Insulating base member 45 is supported on a header assembly 55 having pins 56, Fig. 4 (not shown) connected via wires 59 with contacts 51, 52, 53, and the pins 56 are received in a socket receptacle 57 which is insertable in plug-in printed circuit board assemblies (not shown). Different aspects of the switch are claimed in the present Specification and in Specification 1,133,478.
Patent GB-676013-A (GB)
Title: Improvements in or relating to oil fuel gear pumps
IPC: F23K5/00
Filed: 1949-05-09
Abstract: 676,013. Gear pumps; stuffing boxes. PERRY, A. E. May 25, 1950 [May 9, 1949], No. 12353/49. Classes 110(ii) and 122(v) An internally-meshing gear pump has inner and outer rotors A, B<SP>1</SP> and a cut-off piston valve G which is lifted at a predetermined pump delivery pressure. At a higher delivery pressure a second piston valve H is forced open and oil flows through a byepass O. Oil enters a casing C through an inlet D and passes to the rotor through a filter. Delivery takes place through a passage E leading to a bore F. Valve springs L are adjusted by screws Q. Provided on the driving shaft B is an oil seal comprising a rotating bearing T of nickel alloy or the like which bears against a non-rotating bearing U of phosphor bronze or the like connected to the end of the casing by a bellows V which encloses a spring. A bleed and gauge port W is placed as shown. The bellows V may be surrounded by a filter.
Patent GB-437375-A (GB)
Title: Improvements in and relating to the separation of solid materials of different specific gravities
IPC: B03B5/62
Filed: 1934-04-25
Abstract: 437,375. Washing granular materials. VISSAG, G. A., Blairmore, Alberta, Canada. April 25, 1934, No. 12425. Convention date, April 27, 1933. [Class 82 (ii)] Materials of different specific gravities, e.g. coal and rock, are separated by subjecting them to the action of two superimposed currents of water, one of which consists of a succession of intermittent surges each of which comprises a rapid acceleration to a maximum value followed by a deceleration and the other of which is a continuous current which rises to its maximum strength between the surges. The material is flushed through a door 21 of a hopper 20 by a stream of water from a pipe 22 and flows down a trough into a separating chamber 8 which preferably contains a sloping screen 13. Adjacent the chamber 8 is a closed compartment 3, preferably provided with air release valves 4, to which water is supplied from a main water supply 2 preferably connected through a valve 1 to a centrifugal pump. The compartment 3 is connected to the chamber 8 by two openings, one of which contains an adjustable valve 6 which allows a continuous current to pass and the other of which is alternately opened and closed by a rotating valve 5 having a variable speed drive so that an intermittent current passes through this opening. The openings and valves preferably extend across the whole width of the washer. The lighter particles are carried over an adjustable gate 16 to a discharge opening 19 and the heavier particles sink on to the screen 13 and slide through an opening 14 provided with an adjustable gate 17 to the boot of a scraper conveyer 18. The outflow of water from the chamber 8 is controlled by a valve 23, the position of which is automatically adjusted by means of a float 24 resting on the heavy particles on the screen 13. The current of water through the screen is guided by the inclined side 9 of the chamber 8 and a pivoted deflector 7. When the valve 5 is closed the air in the compartment 3 is compressed and the continuous current through the valve 6 rises to its maximum value ; the opening of the valve 5 causes a surging current which accelerates rapidly to its maximum value and then decelerates. The strengths of the currents are preferably adjusted so that the minimum strength of the current passing through the screen is just sufficient to hold the lighter particles in suspension and the maximum current is just sufficient to hold the heavier particles in suspension. Two or more washers may be arranged side by side the materials passing through them in a direction parallel to the partition between the compartments 3 and the chambers 8. Each washer may have two compartments 3 connected to a single chamber 8.
Patent GB-506607-A (GB)
Title: Improvements in and relating to electrie cable sheathings
IPC: H01B7/282
Filed: 1938-04-26
Abstract: 506,607. Cables. FELTEN & CUILLEAUME CARLSWERK AKT.-GES. April 26, 1938, No. 12445. Convention date, May 15, 1937. [Class 36] An insulated conductor 1 having a thin lead sheath 2 is armoured by a multi-layer wrapping of overlapping bands 3, 4 consisting of extensible non-vulcanizable synthetic organic material, such as polymerization products of vinyl compounds, e.g. polyvinyl chloride, or polyacrylic acid esters, with or without plastieizers, the hands being glued or fused together at the points of overlap.
Patent GB-1102542-A (GB)
Title: Multiple unsaturated compounds and process for the preparation thereof
IPC: C07C43/303
Filed: 1965-03-24
Abstract: The invention comprises ethers of formula <FORM:1102542/C2/1> where R1 is a C1- 6 alkyl group and the alkynyl acetals from which they are prepared of formula <FORM:1102542/C2/2> wherein R1 is as above and R2 is hydrogen, or an alkyl, aryl, or heterocyclic group or a group of formula <FORM:1102542/C2/3> where R3, R5 and R6 are hydrogen or C1- 6 alkyl groups and R4 is a C1- 6 alkyl group. Compounds (1) are prepared by reacting compounds (II) with a strong base, suitably an alkali metal amide in liquid ammonia. The alkynyl acetals of Formula (II) are prepared by coupling propyne with 1,1-dialkoxy-3 ketobutane using a Grignard or Nef reaction and converting the resulting metal compound of 1,1-dialkoxy-3hydroxy - 3 - methyl - hex - 4 - yne, into an ether.  The alkynyl acetals containing the group (III) are prepared by reacting 1,1-dialkoxy-3hydroxy - 3 - methyl - hex - 4 - yne with a vinyl ether of formula <FORM:1102542/C2/4> where R3, R4, R5, R6 have the same meaning as above.  This reaction may take place in the presence of an acid, for example, or in the presence of an indifferent solvent. Among the compounds prepared are 1,1-dimethoxy-3-tetrahydropyranyloxy - 3 - methyl - hex - 4 - yne, 1,1 - diethoxy - 3 - tetrahydropyranyloxy - 3  methyl - hex - 4 - yne, 1 - methoxy - 3 - methylhexa - 1,3 - diene - 5 - yne, 1 - ethoxy - 3-methylhexa - 1,3 - diene - 5 - yne, 1 - n - butoxy - 3  methyl - hexa - 1,3 - diene - 5 - yne.
Patent GB-980691-A (GB)
Title: Casing for controlling plugging by means of cartridge-operated tools or like apparatus
IPC: B25C1/18
Filed: 1961-04-07
Abstract: 980,691. Missiles for cartridge-operated tools. SOC. CIVILE D'ETUDE DE PROCEDES DE SCELLEMENT. April 7, 1961 [April 9, 1960], No. 12596/61. Heading F3A. A casing 1 of hard material such as steel and its alloys which is intended for use with a missile p in cartridge-operated tools, has a recess 1<SP>3</SP> the length of which determines the length of the missile p which is to remain projecting from a surface m. At the rear of the recess may be placed a magnet 3 to retain a ferro-magnetic missile in place or alternatively there may be a number of resilient annular washers (Fig. 5, not shown) which grip the rear end of the missile. A gas-check 4 may be attached to the rear of the casing and the latter may also have a transverse peripheral groove containing a resilient ring which retains the casing, before firing, within barrel t of the tool. Alternative forms of gas-check are as described in Specifications 876,745 and 938,270.