baber/WOPTO huggingface dataset:
Patent GB-678113-A (GB)
Title: Method of brittlizing pencil sheaths
Inventor: AKE JOHN E
IPC: B43K19/16
Filed: 1950-06-12
Abstract: 678,113. Pencils. DIXON CRUCIBLE CO., J. June 12, 1950, No. 14623/50. Class 146 (iii). [Also in Group XXV] The sheaths of pencils having a convolute sheath of paper, adjacent convolutions being secured by adhesive, are brittlized, charred or aged so as to enable them to be sharpened with a knife &c., by pre-drying the pencils at a temperature not exceeding 250‹ F., and thereafter subjecting the pencils to a brittlizing temperature ranging between approximate temperatures of 390‹-400‹ F. About half of the water is in the paper and the remainder in the adhesive. The pre-drying step is continued until about 70 per cent by weight of the water is eliminated. The pre-drying may be effected by relatively dry air for 24 hours or longer, or by heating at not more than 250‹ F. for about 90 minutes, or by subjecting the pencils to a teniperature gradually raised from room temperature to not over 250‹ F. for about 2 hours, with or without in each case the use of a warm air blast. The pencils are then subjected to the brittlizing temperature of 390‹-400‹ F., preferably for 30 to 45 minutes. The treated pencils remain stable as to their moisture content. The paper is preferably newsprint paper composed of cellulose and lignin, but sulphite pulp up to 40 per cent by weight may be added thereto. The adhesive between successive convolutions may be sodium silicate. The core is of such composition that it is not damaged by the brittlizing heat, such as a core of the usual clay-graphite composition.
Patent GB-750752-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41L45/00
Filed: 1954-05-20
Abstract: 750,752. Addressing and like machines. ADDRESSOGRAPH - MULTIGRAPH CORPORATION. May 20, 1954 [May 29, 1953], No. 14818/54. Class 100 (2). Printing devices are fed in succession to sensing and printing stations, and identifying means positioned in identifying positions on the devices are sensed and control the number of times printing takes place from the devices. The identifying means are tabs. Printing devices having no tab are printed from once, while devices having a tab are printed from two to four times according to the tab position, the three positions being sensed by sensing pins of three different lengths on a sensing head, which moves through a downward sensing stroke and comes to rest at one of four levels, thereby through a mechanical linkage setting in a selected horizontal position the lowermost of six plungers 672, Fig. 7, in grooves in a storage drum 670, which is indexed through 60 degrees on each cycle of operation of the printing device advancing means. When a printing device which has been sensed arrives at printing position, the plunger set thereby moves from its uppermost position to the next position in a clockwise direction, and a nose of the plunger rocks one of the levers L2, L3, L4, Figs. 7 and 17, according to the tab position, or none of the levers if there is no tab. The lever L2, when actuated, closes a switch SW-2 and energizes a solenoid SOL-2, Figs. 1 and 17, whereupon a pawl 913-2, actuated by the platen rock-shaft 296, is moved into operative relation with a ratchet 908-2 on a shaft 907 carrying a cam 909-2, which is thus indexed through 60 degrees, whereupon a cam roller 910 closes a switch CS-2 comprising contacts CS-2H, CS-2C. The closing of contacts CS-2H provides a holding circuit for the solenoid SOL-2, while the closing. of contacts CS-2C energizes a solenoid MS, which acts through a link 902 to rock the multi-print rocker 795 (which in normal duplicate printing is controlled by a cam 433) and move the printing device feed clutch stop lever 251S-2 into position to disengage the clutch and stop the feed. On the next cycle, therefore, printing takes place from the same device, whereupon the roller 910 enters the next recess in the cam 909-2 to de-energize the solenoids SOL-2 and MS. Similarly, the levers L-3, L-4 when actuated energize solenoids SOL-3, SOL-4, together with solenoid MS, but the equivalent cams 909-3, 909-4 comprise recesses so spaced that the clutch 251 remains disengaged while three or four printing cycles respectively take place. The plungers 672 normally actuate a print-strip control lever, which is, however, manually set to an ineffective position for so-called " bell " actuation, whereby printing takes place from every printing device, the bell, however, being latched to be inoperative. Specifications 558,793 and 560,570 are referred to.
Patent GB-612054-A (GB)
Title: Improvements in and relating to flow metering mechanisms
IPC: G01F1/26
Filed: 1946-05-16
Abstract: 612,054. Fluid-pressure servo motor-control systems. NEGRETTI & ZAMBRA, Ltd., and IBBOTT, H. W: May 16, 1946, No. 14850. [Class 135] [Also in Group XXXVIII] A fluid-flow meter comprises a valve 1, Fig. 2, movable to vary the area of an orifice through which the fluid flows, the valve being actuated by a piston 9 in a cylinder through the spaces in which, on both sides of the piston, fluid can flow, a valve 5 controlling the fluid flow through the cylinder spaces, and a pressure responsive device 3 subjected to the differential pressure across the orifice adjusts valve 5 in response to said differential pressure so that the piston will be actuated to vary the area of the orifice to restore the differential pressure across it. The pressures on the two sides of the orifice are applied to the diaphragm 3 through passages A, B and the fluid acting on the outer side of the diaphragm also flows through a chamber 7, leaks round the edges of piston 9, and flows out past valve 5 to the inner side of the diaphragm and thence to the outlet side of valve 1. The fluid pressure acting on the front face of valve 1 is normally balanced by a spring 16 loading the piston. A stop 25 limits the movement of valve 1. The latter has a spring connection 12 with piston 9 to allow of relative movement between them should the valve jam or the pressure on the forward end thereof become excessive. A screw 17 allows of adjustment of the spring loading on the diaphragm, and a bimetallic strip 4 inserted between the screw and a spring 18 compensates for changes in the viscosity or density of the fluid due to changes in temperature. To give an indication of the position of valve 1, an extension 11 of the piston spindle carries either a pointer moving over an index or an iron core 27, Fig. 3, moving inside a coil 29 of which the two ends are connected to a further coil 31. Alternating current is supplied to the mid points of the coils, and when the position of core 27 changes, there will be a corresponding change in the position of an iron core slidable in coil 31. Core 32 carries a pointer moving over a scale. According to the Provisional Specification, separate pressure fluids are supplied to both sides of piston 9 and valve 5 is constituted by a a double-beat lift valve differentially controlling the leak of fluid from both sides of the piston.
Patent GB-612059-A (GB)
Title: Improvements relating to the manufacture of electric cable joints and terminations
IPC: H02G15/196
Filed: 1946-05-16
Abstract: 612,059. Cable sleeves; couplings. DAVEY, E. L., CREDLAND, F. R., and GLOVER & CO., Ltd., W. T. May 16, 1946, No. 14869. [Classes 36 and 38 (i)] In a 'method of providing a cable core 6, termination or joint with a profiled body of laminated dielectric, the wrapping 8 is of paper and has one or both ends flat and is perforated along a line extending helicoidally from a point near the internal surface of the wrapping at a flat end to a point on the external surface of the wrapping nearer to the other end. The paper between the flat end and the line of perforation is removed by unwrapping it and tearing it off as indicated at 2, 3. This leaves a wrapping having a tapered surface, the profile being determined by the shape of the line of perforation. The wrapping may be left with one end flat, or one end may be pre-shaped, or both ends may be perforated as indicated in the Figure, and it may be applied to the cable core by being threaded on or by passing the core between the convolutions prior to the tearing process.
Patent GB-1100446-A (GB)
Title: Diamond-containing abrasive body and process for the preparation thereof
IPC: C09K3/14
Filed: 1965-04-08
Abstract: An abrasive body containing diamond as the abrasive is characterized in that the surfaces of the diamond particles are coated with molybdenum and the coated particles are connected by a copper matrix. The diamond may constitute at least 50% of the volume of the body. The body may be made by coating the diamond particles with molybdenum by the glow discharge method, coating the molybdenum-coated particles with copper, and compacting the doubly coated particles under heat and pressure.  The compact may then be incorporated into an abrasive tool.ALSO:An abrasive body is prepared by coating diamond particles with molybdenum, for example by the glow-discharge method, then coating the molybdenum-coated particles with copper, and compacting the doubly-coated particles under heat and pressure.  The glow-discharge method of 1,100,447 may be used.  The resultant compact may contain at least 50% by volume diamond particles.
Patent GB-529595-A (GB)
Title: Improvements in electric circuits employing feedback
IPC: H03F1/36
Filed: 1939-05-19
Abstract: 529,595. Valve amplifying circuits; circuits for moving-coil instruments. ELECTRICAL RESEARCH PRODUCTS, Inc., and BROWNING, S. H. W. May 19, 1939, No. 15014. [Class 40 (v)] [Also in Group XXXIX] The load fed by a signal source is arranged as an element of a bridge circuit and energy is fed back to the source from other elements of the bridge in such manner that 'the net feed-back has a desired variation with frequency. As shown in Fig. 1, a theimionic valve, represented by a voltage source e with internal resistance 6, feeds a load impedance l variable with frequency. A bridge is formed by the load l and three high resistances 1, 3, 4. Positive feed-back is taken from a low resistance 2 forming a diagonal of the bridge, and negative feed-back from a low resistance 5 in series with the valve anode-cathode circuit. At the frequency at which the bridge is balanced, the positive fed-back is nil, but at other frequencies both feed-backs are operative, and result in a variation in the gain of the valve to compensate for the change in output voltage which would otherwise be produced by the variable load impedance. At the same time the impedance measured by applying energy to the ends of the load impedance l remains substantially constant. In a modification, Figs. 2 and 3 (not shown), the resistance 5 is placed in series with the resistance 4 in one arm of the bridge, enabling both feedback voltages to be obtained at a single pair of terminals. The valve may be replaced by a moving-coil sound-translating instrument, the joint feed-back being taken to an additional coil mechanically solid with but electrically separate from the main coil.
Patent GB-729532-A (GB)
Title: Foundry moulding method
Filed: 1953-05-29
Abstract: In a method of making shell moulds or cores from a fine grained mass containing a constituent which hardens or sets under heat, the material is introduced into an electrically non-conductive mould which is at or about room temperature and is hardened or solidified therein by capacitative high frequency action to p  produce a mould or core of the required final thickness.  The material is introduced into the mould by blowing and the hardened shells are finally cured in an oven.  The non-conductive mould comprises a pattern plate and a part arranged at such a distance therefrom as to leave a mould cavity of the dimensions of the shell mould or core to be produced.  The parts may be of wood, gypsum, rubber or ceramic, or of the same material as the shell moulds or cores to be produced, being cured before introduction into the high frequency furnace.
Patent GB-310678-A (GB)
Title: Improvements in or relating to thermally-actuated fans or spinners, such as those used for producing flicker effects in imitation fires
IPC: F24C7/00
Filed: 1928-05-22
Abstract: 310,678. Berry, H. H. May 22. 1928. Imitation fires. - A thermally-actuated fan or spinner 2, such as is used for producing a flicker effect in imitation fires, is adapted to rotate on a bearing formed by a single ball 6; which may, as shown, be provided at the upper end of the support 1, or on the fan itself. The support 1 is shown mounted on a bracket 3 which is vertically adjustable on a spindle 4 with a foot 5 attached to the lamp holder. The support 1 may be detachably mounted on an upright 9 secured to the bracket 3.
Patent GB-1103527-A (GB)
Title: Vinyl chloride polymer compositions
Inventor: PEARSON RUPERT BERESFORD
IPC: C08F10/00
Filed: 1966-04-05
Abstract: The polyvinylchloride composition of Specification 911,105 is prepared by polymerizing vinyl chloride, or a mixture of monomers containing at least 80% of vinyl chloride, in aqueous suspension in the presence of an amount of a solid copolymer of ethylene with acrylic or methacrylic acid or nitrile, maleic or fumaric acid or nitrile, alkyl methacrylate, or maleic anhydride to give a final composition containing 2-40% by weight of the copolymer.  The copolymer may contain a third monomer chosen from the above list, propylene, isobutene or butene-1 and is preferably dissolved in the monomer. missing page 94
Patent GB-125877-A (GB)
Title: Improved Window for Concrete Ships.
Inventor: HICKEY JOHN JOSEPH
IPC: B63B19/00
Filed: 1918-09-19
Abstract: 125,877. Hickey, J. J. Sept. 19, 1918. Cabin and deck lights. - The frame of a side light, deck light, or the like for a concrete ship is formed with an exterior flange and an interior flange which become embedded in the concrete during the casting of the ship. Fig. 1 shows a side light and Fig. 3 a deck light, the exterior flanges being a<1>, l<1>, and the interior flanges a<2>, l<2>. A cover-plate H may be inserted to protect the glass F and obscure the light.
Patent GB-979783-A (GB)
Title: Improvements relating to high-voltage electric circuit-breakers of the gas-blast type
Inventor: YOUNG AUSTIN FREDERICK BRABANT
IPC: H01H33/825
Filed: 1960-04-29
Abstract: 979,783. Gas-blast switches. A. REYROLLE & CO. Ltd. April 27, 1961 [April 29, 1960] No. 15245/60. Heading H2B. A recirculating gas-blast circuit-breaker comprises a high-pressure gas container 11, Fig. 1, communicating through a blast valve 30 with a low-pressure gas container 12 which is at super-atmospheric pressure and into which a blast of gas is delivered from the high-pressure container across an arc gap between a pair of contacts 18, 21 separated on opening of the blast valve, the low-pressure container 12 being of conductive material at the potential of the downstream contact 21 and the two contacts being insulated from one another by solid insulation 15 forming part of a wall of the high-pressure container 11. A pump 40 restores the pressure differential between the containers after operation of the circuit-breaker. The blast sleeve-valve 30 is coupled by means not shown to the contact-operating mechanism 25, and when opened permits the blast to flow through a nozzle 19, a conical passage 38 and ports 36 into a cooler formed by baffle walls 31, 34 within the container 12. Fig. 2 (not shown) illustrates a two-break arrangement comprising two of the above units sharing a common low-pressure container and mounted on a single insulating post. Fig. 5 shows a four-break arrangement housed in a dead tank 80 filled with compressed air to the same pressure as that within the low-pressure containers 82, 83, two high-pressure containers 81 each containing two breaks. In this case the fixed contacts 106 are nozzles formed in the domed end walls 85 of the associated lowpressure chambers and the blast valves 110 are located within the nozzles. These valves are operated under the control of pilot valves 112 operated by cams 118 on a contact operating shaft 96. The low-pressure containers 82, 83 communicate with the interior of the tank 80 through filters 124 and the pump 90 pumps air from the tank 80 into the high-pressure containers. Figs. 3 and 4 (not shown) illustrate other four-break arrangements.
Patent GB-1507958-A (GB)
Title: Apparatus for extracting petroleum from beneath a body of water
IPC: E21B17/01
Filed: 1976-04-14
Abstract: 1507958 Wells &c. ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES 14 April 1976 [14 April 1975] 15274/76 Heading E1F A marine riser which extends between a releasable connector 14 on a base 4 on the sea bed 6 and a platform 2 on a tower 1 pivotably mounted on the base 4 by a universal joint 5 includes a riser pipe 7 which is formed in sections joined end to end and is free to slide axially in a hollow guide shaft 11 fixed to the tower 1, the upper end of the guide shaft 11 being closed by an annular plug. e.g. stuffing box 18, through which the pipe 7 passes in liquid tight manner, the lowest section 13 of the pips 7 being joined to the section next above by a connector 15 which is longitudinally slidable in the guide shaft 11. As described the connector 15 (Fig. 3) includes threads 35, 36 for connection to the sections of pipe 7 and includes PTFE rings 39 resting on flange 38 and held in place by ring 40 and nut 41. The rings 39 are a sliding fit in a sleeve 16 which is releasably secured to the lower end of guide shaft 11 by a spring collet (not shown). Grooves 45, 46 and holes 47 permit the passage of fluid past the connector 15. In use the connector 15 acts as a piston, this arrangement ensuring that the bending moments of the pipe are uniformly distributed throughout the lower section 13 of the pipe 7. The upper end 17 of the pipe is connected to a constant tension device 23 and centralizers 12 are mounted on the pipe 7 within the guide shaft 11. The arrangement includes a safety valve 8' in the base pipe 8 which is closed when the pressure in control pipe 26 drops, the pipe 26 including a rupturable section surrounding the lower section 13 of the pipe 7. The invention can be applied to a riser pipe 7 consisting of production tubing or to a large diameter riser pipe 33 of elastomenic material, e.g. for conducting gases to a burn - off flare.
Patent GB-565315-A (GB)
Title: Improvements in and relating to torque indicator wrenches
IPC: B25B23/142
Filed: 1943-09-18
Abstract: 565,315. Torque-measuring wrenches. OSCAR, I. Sept. 18, 1943, No. 15337. [Class 61 (iii)] [Also in Group XIX] An adjustable torque overload release wrench has the head 3 normally locked to rotate with the handle 1 by a slidable pawl 8 held in engagement with one of a number of notches in the head by a roller 7a mounted on a slide 7 under the influence of a spring 10 in the handle, the pressure of which spring is adjustable by an abutment 11 on a screw-threaded rod 13 engaging a fixed nut 12. The load on the compression spring is registered by a pointer 11a moving along a graduated slot in the tubular handle. When the predetermined torque is exceeded, the roller 7a rides off the concaved end 8c of the pawl 8 on to one or other arm 9b, 9c of a rocker 9, thereby tilting the latter so that a central projection 9a thereon engages one or other of the inclined faces 8a or 8b on the rear end of the pawl, thus disengaging the forward end from the wrench head.
Patent GB-969518-A (GB)
Title: Tetrahydrodibenzocyclo-octene derivatives
Inventor: HARMS AUGUST FRANCISCUS
IPC: C07C63/331
Filed: 1961-04-27
Abstract: The invention comprises tetrahydrodibenzo [a, d] cyclooctene derivatives of the general formula <FORM:0969518/C1/1> (wherein A represents an alkylene group containing 2 to 6 carbon atoms, B represents an alkylamino or dialkylamino group, on a saturated mononuclear 5- or 6-membered heterocyclic group attached to A through a nitrogen atom, which heterocyclic group may carry alkyl substituents and-when alkyl substituted-contains at most 12 carbon atoms, or A and B taken together represent a 3-tropanyl or 3-pseudo-tropanyl radical, the word "alkyl" being defined as an alkyl group containing at most 6 carbon atoms) and their acid addition salts, by heating a compound of formula <FORM:0969518/C1/2> with a compound of formula Y-A-B, wherein one of X and Y represents a halogen atom and the other an -O-alkali metal group, or X represents a halogen atom or hydroxyl group and Y represents a hydroxyl group, preferably (when X=halogen and Y=OH) in the presence of an acid-binding agent or (when X=Y=OH), a dehydrating agent. The starting materials may be prepared as follows:-  The g -lactone of 2-(1-hydroxy -3- phenylpropyl) benzoic acid (prepared by condensing o-carboxy-acetophenone with benzaldehyde and hydrogenating the resulting 2-cinnamoylbenzoic acid) is reacted with red phosphorus and HI to give 2-(3-phenylpropyl)-benzoic acid which is cyclised to 5, 10, 11, 12-tetrahydrodibenzo [a, d] cycloocten -5- one by direct treatment with P2O5 or first converted to the acid chloride which is then cyclised using AlCl3.  The ketone is reduced using LiAlH4 to give 5, 10, 11, 12-tetrahydrodibenzo [a, d] cyclo-octen-5- ol which may be converted to the corresponding halide or to its alkali metal derivative.  Pharmaceutical preparations comprise the compounds of the invention in association with a pharmacologically acceptable carrier. They have antiallergic, anticholinergic, psychotropic and analgesic activity, and may take the form of tablets, pills, capsules, solutions, suspensions, emulsions, syrups or elixirs.
Patent GB-588562-A (GB)
Title: Apparatus for drying and conditioning sulphate of ammonia and other granular and crystalline products
IPC: C01C1/249
Filed: 1944-08-12
Abstract: 588,562. Drying granular material. ROYSTON, G. Aug. 12, 1944, No. 15408. [Class 34 (ii)] [Also in Group XXX] Granular &c. material, e.g., ammonium sulphate, is dried during its conveyance by a current of heated air or gas through a pipe E from a feed hopper A to the upper end of a tower J, provided with inclined baffles H, down which it falls for further drying counter to an upward flow of hot air or cool dry air. The moist material is fed to the hopper A, and it is then directed by a rotary scraper, in the form of a pair of arms B in the latter, to between the inlet of the drying pipe E and an orifice A<11> in the bottom plate A<1> of the hopper, which orifice coincides with a nozzle D at the end of an air supply pipe F leading from a blower N and heater G. The blower N may also supply the heated air to the tower J but, preferably, a separate blower K, with a damper-controlled inlet S and an associated heater L, is employed for this purpose. The dried material falls into a bunker P and is discharged into sacks at Q.