baber/WOPTO huggingface dataset:
Patent GB-505049-A (GB)
Title: Improvements in or relating to weighing apparatus with automatic addition and removal of supplementary weights
IPC: G01G1/28
Filed: 1937-12-03
Abstract: 505,049. Automatic control systems. BERKEL AUTO SCALE CO., Ltd. (Maatschappij van Berkels Patent N.V.) Dec. 3, 1937, No. 33459. [Class 38(iv)] [Also in Group XVIII] Alignment.-In a weighing-apparatus wherein supplementary weights are automatically added or removed by power means for the purpose of varying the weighing range of the apparatus, the operation of the power means is controlled by a part of the weight-indicating device or a member supported thereby. As shown, if the load on the apparatus exceeds the range of the pointer 2 (coupled to the usual pendulum weight) the pointer touches a contact 31 and thereby energizes a solenoid 28 which pulls down a lever 25. The free end 23 of the lever is removed from locking engagement with a wheel 16, and a projection on the lever closes a starting switch 19 in the circuit of a motor 18. The motor then drives (through a friction clutch 15, 21 and gearing 13) a worm shaft 10 so as to lower a lever 8 and deposit one or more of the supplementary weights 6 upon the scale pan 5 suspended from the weighbeam 3. The deposition of weights ceases when the pointer 2 leaves the contact 31 and de-energizes the electromagnet 28, thus allowing the lever 25 to return to locking position under the action of springs 26 and stopping the motor. When the load is removed, the pointer closes a contact 32 to energize an electromagnet 29, thus rocking the lever upwards and starting the motor in the reverse direction by means of a switch 20 until the supplementary weights have been removed.
Patent GB-655051-A (GB)
Title: Improvements in or relating to the production of metals or metal alloys
IPC: C21B13/00
Filed: 1947-12-18
Abstract: In a method of wholly or partially decarbonizing metals or metal alloys containing carbon, the said metals or alloys are admixed with magnesium oxide or materials containing or capable of forming such oxide, the oxide being reduced by the carbon in p  the metal or alloy to be decarbonized at a temperature of approximately 1500-2000 DEG C. The liberated magnesium may be burnt and returned to the process. The treatment may be carried out in an arc furnace lined with magnesite, the mixture of metal or alloy and magnesium oxide being added in powder form, or alternatively, in a high frequency furnace which has a lining of sintered magnesite coated with calcined magnesite or magnesium oxide. Metals or alloys which are entirely or partially relieved of carbon may be obtained directly from the corresponding ores, the reduction charge being mixed with magnesium oxide or materials containing or capable of forming it, such as dolomite, roasted dolomite or non-roasted magnesite, the slag formed during reduction being enriched in magnesium oxide which causes decarbonization of the metal or alloy.  The ore or ore mixture may be first sintered with the oxide material, thus forming a compound such as magnesium ferrite.  The treatment of iron or iron alloys, such as pig iron and high-carbon ferro-chrome, which may contain nickel, is referred to.
Patent GB-1501446-A (GB)
Title: Dental instrument
IPC: A61C17/02
Filed: 1975-08-12
Abstract: 1501446 Dental instruments NATIONAL PATENT DEVELOPMENT CORP 12 Aug 1975 33597/75 Heading ASR An instrument for applying decay-attacking liquid to teeth comprises a tubular member 12 open at both ends and having at one end an extension 15 for removing carious material from a tooth and shaped as a spoon excavator. To facilitate use in the mouth the other end 13 of member 12 may be cranked. End 13 is connected to a connector 30 for coupling to a liquid-supply source which may be a pump, syringe or hose connected to a liquid reservoir.
Patent GB-1241826-A (GB)
Title: Improvements in or relating to storage apparatus for magnetic tape
IPC: G11B23/06
Filed: 1968-07-16
Abstract: 1,241,826. Feeding record tapes. MANDREL INDUSTRIES Inc. 16 July, 1968 [3 Aug., 1967], No. 33822/68. Heading G5R. An endless loop of magnetic tape 12, 18 passes through a random storage bin 11 having an outlet orifice 13 and an inlet orifice 17, the outlet orifice 13 tapering from a relatively large interior mouth to a relatively small throat and the tape being sufficiently thick and stiff to prevent a loop of it being dragged through the orifice. The orifice 13 is formed between a pair of facing, rounded, enlarged parts of a side wall 30 of the bin 11, which has a transparent top wall 27. The tape passes through a drag device 23 which includes a strip of cleaning paper 41 wound on reels 43.
Patent GB-454717-A (GB)
Title: Improvements in and relating to combustion product engines
IPC: F02G3/02
Filed: 1935-12-06
Abstract: 454,717. Generating combustion products under pressure. HARDENSETT, H., 42, D÷belestrasse, Constance, Germany. Dec. 6, 1935, No. 33903. Convention date, Dec. 6, 1934. [Class 51 (i)] [See also Group XXVII] A combustion-product engine has at least two independent combustion chambers 1, 2 supplied alternately with compressed oxygen-containing gases and fuel, the volume of each chamber being a multiple of the total working volume of the power cylinders 10 ... 12. Combustion or explosion is produced in each of the chambers 1, 2 in succession and the products of combustion are admitted to the power cylinders through pipes 6 ... 9 and inlet valves 13. The chambers 1, 2 are charged with compressed air or gas by a common compressor 5 through inlet valves 18 and the fuel may be supplied in gaseous, liquid or powdered form, or solid fuel may be burned on a grating. When the pressure in the chamber has fallen to a suitable final working pressure, any residues of combustion can be removed with the remaining combustion gases through a pipe 16 or 17. Gaseous or liquid fuel may be ignited in the chambers 1, 2 by sparking plugs 19 or by the heat of compression. Powdered fuel may be ignited by the heat of compression, with the aid of catalytic material arranged on rods or bars in the chamber; the fuel may be blown in by the passage of the compressed air through a nozzle having a perforated wall forming one side of a container for the fuel. A combustion chamber for fuel which is granular or in lumps is shown in Fig. 4. Compressed air is admitted through a nozzle 25 and deflected by a fuel container 26 over and through a grating 27 on which combustion takes place. The supply of fuel from the container to the grating is controlled by a rotary notched member 28 in accordance with the rate at which the fuel is consumed on the grating. Fuel residues are caught by baffles 30 in the passage leading to the power cylinders, or are removed by a refractory sieve by centrifugal action due to rotary movement of the gases of combustion, or by electrostatic precipitation. The waste gases from the power cylinders and the combustion chambers may be used to heat the compressed air or gas admitted to the combustion chambers, and the fuel may also be pre-heated.
Patent GB-196324-A (GB)
Title: Improvements in or relating to processes for photo-mechanically producing printing surfaces
IPC: G03F1/00
Filed: 1921-12-16
Abstract: 196,324. Seyfferth, E. Dec. 16, 1921. Addition to 196,008, Photo-mechanical printing-surfaces; negatives, producing by means other than photography; films.-The process described in the parent Specification for employing negatives or diapositives consisting of letterpress and illustrations on a cellon support in the production of photomechanical printing-surfaces is modified by the substitution, for the step of treating the surface of the cellon with chemicals to prepare it for the reception of letterpress printing, of the step of slightly roughening the surface mechanically, as by compressing the sheets between slightly roughened and heated metal plates. An application to the reproduction of a sheet of music is described.
Patent GB-624112-A (GB)
Title: Improvements in moulds
IPC: B22C9/06
Filed: 1947-11-12
Abstract: 624,112. Making compound dies, electrotypes, and moulds. ROBINSON, L. C., and CROSS, C. Nov. 12, 1947, No. 34017/46. [Classes 83 (ii) and 83 (iv)] Building up articles by spraying.-A method of making a mould in which a thin metal shell is electrodeposited on a pattern and subsequently strengthened by the application of a backing,' comprising making the mould in at least two parts by investing one half of the pattern, electro-depositing a thin shell on the exposed surface, removing the investment and then electro-depositing on the second half of the pattern thus exposed. The invention is described as applied to the manufacture of a twopart mould having the configuration of a pattern 11. An outline 13 of the pattern is cut out from a circular lead sheet 12, and the pattern is tightly fitted into the hole so that the sheet is slightly to one side of the axial plane of the pattern. An electrical lead 14 is secured to the sheet 12 and the rear of the sheet and also that part of the pattern projecting-through the sheet is coated with wax 15. The other side of the sheet and pattern is coated with graphite 16 to render the pattern conducting if not of metal and to prevent adherence of the electrodeposited layer if the pattern is of metal and the assembly is put in an electroplating bath to form a deposited layer 17 of from 0.003-0.005 inch in thickness. The wax 15 is removed by boiling water and the sheet 12 carefully detached. The exposed faces of the pattern 11 and layer 17 are coated with graphite and a layer 19 of the same thickness electrodeposited on the other side. The whole pattern is again immersed in the plating bath until a layer of a total thickness of from 0.015-0.020 inch has been formed and a deposit 20 has sealed the outer rim of the previous coatings. Metal is now sprayed on to build up the backing 21 on each side of the pattern and the assembly is cut along a line 22 to remove the outer sealed edge and allow the separation of the deposited mould halves. Other soft-metal, wax or plaster of Paris may be used instead of the lead 12, but if non-conducting the sheet must be chemically coated with a metal or with a film of graphite. Before spraying, the surface of the deposited coating is preferably shot-blasted with steel grit, this operation being carried out slowly so that any heat produced is dissipated. The backing may include pieces of metal introduced as a filler during spraying. The spraying pistol comprises a nozzle through which a wire of 1 mm. to 3 mm. diameter is fed into an oxyacetylene flame while around the nozzle are compressed air ports giving an air stream which breaks up and carries away the molten metal. By using more than one dividing sheet 12, moulds comprising four or more parts may be similarly built up. The invention is also applicable to the manufacture of electrotypes for printing, electrodeposited matrices for the production of gramophone records and dies for metal-working.
Patent GB-1414859-A (GB)
Title: Press and method for capping boards
IPC: B29C43/00
Filed: 1973-07-17
Abstract: 1414859 Finishing edges of sheet material R P STRUCTURES Ltd 12 July 1974 [17 July 1973] 34071/73 Heading B5K A cap press comprises a mould for capping an edge of a board 6 with synthetic resin material 4 and having flap portions 2, 2<SP>1</SP> movable relative to a central portion 1 to positions such that the mould is of channel section in planes perpendicular to the length of the edge, means for holding a board 6 so as to be offered to the mould, means for urging the portion 1 against the edge of the board with the interposition of capping material, and means for urging the portions into their channel-defining positions. Preferably, the board 6 is of solid or ply wood, insulation material, chipboard, hardboard or plastics foam, and the capping material comprises a styrenated unsaturated polyester resin and is reinforced by glass fibres in any form, e.g. woven fabric, chopped strand mat, rovings, surfacingtissues or woven rovings. Other specified reinforcements are carbon fibres and steel wires. In one embodiment, Fig. 3a, accompanying the provisional Specification, the portions 2, 2<SP>1</SP> are hinged to the portion 1 by piano-type hinges 8. In operation, a layer of reinforcing material is laid on the portions 1, 2, 2<SP>1</SP> in the open position thereof and a hardenable unsaturated polyester resin is brushed or sprayed evenly on this layer. If necessary, a release film or a release agent is located between the mould and the reinforcing material. The board 6 is placed with its edge to be capped along the portion 1, Fig. 5 (not shown), the press and board are pressed together and clamped, and the portions 2, 2<SP>1</SP> are turned upwardly through 90 degrees and clamped to hold the edge margins of the reinforced resin layer against the board faces, Fig. 6 (not shown). The assembly is left clamped until the resin hardens. The corners (16) of the finished cap may be very slightly rounded, Fig. 7 (not shown). All of the edges of a board may be capped, in turn or simultaneously. In modifications, the cap may extend over the marginal portion of only one side of the board, Fig. 10 (not shown), or may lie flush with the faces of the board, Fig. 9 (not shown). In another embodiment, Figs. 1a and 2 (both accompanying the complete Specification), the edge of the board 6 and the central portion 1 of the mould are curved. However, portions 2, 2<SP>1</SP> are not hinged to the portion 1 and are movable upwardly to wrap a reinforced resin layer 10 around the edge of the board.
Patent GB-414270-A (GB)
Title: Improved ventilator fitting
IPC: E04F19/08
Filed: 1933-12-05
Abstract: 414,270. Ventilators. SIMS, A., 88, Lammas Avenue, Mitcham, Surrey. Dec. 5, 1933, No. 34117. [Class 137.] A plate of glass, metal, or wood is secured to a wall in front of a ventilation opening leading to the outside, by a pair of brackets are fixed on each side of the opening, each bracket having a lip d and arm carrying a member with a slot c, the plate fitting into the slots, and being supported by the lip at an angle to the brackets. A groove a is formed on the inside of each bracket so that the plate may be placed so as to close the opening.
Patent GB-1352793-A (GB)
Title: Detergent composition
IPC: C11D3/34
Filed: 1972-07-21
Abstract: 1352793 Detergent composition TEXACO TRINIDAD Inc 21 July 1972 [5 Aug 1971] 34127/72 Heading C5D A detergent composition consists of (a) as hydrotrope, 3-9 weight per cent of a terminal or non-terminal sulphonate of n-heptane or noctane, (b) 15-30 weight per cent of a terminal or non-terminal sulphonate of a linear C 11-19  alkane, (c) 0-5 weight per cent of a fatty acid alkanolamide and (d) water. The sulphonates are normally sodium salts.
Patent GB-384796-A (GB)
Title: Improvements relating to electrical switches, particularly for use in wireless receiving apparatus
IPC: H03J1/04
Filed: 1931-12-09
Abstract: 384,796. Press-button retractive switches. WHEELDON, D. P., Rosedale, The Green, Sutton, Surrey. Dec. 9, 1931, No. 34140. [Class 38 (v).] The control knob of a variable condenser, inductance, resistance, &c., of a wireless receiver incorporates a switch which closes the circuit of a lamp illuminating a scale. As shown, the spindle 5 of a condenser &c., and control knob 3 are clamped to coaxial sleeves 6, 9, respectively, by grub screws 7, 10, the former engaging an elongated slot in the sleeve 9, whereby limited relative axial movement of the sleeves is permitted, whilst relative rotational movement is prevented. Depression of the knob 3 during operation, forces an arcuate spring contact 12 into contact with a pair of contact studs 16 (one not shown), mounted on an insulating base 13, and included in the lamp circuit, whilst the spring 12 forces back the knob when released. Alternatively, members 12, 16 may be replaced by a pair of contact blades mounted on the base 13 and bridged by the sleeve 9 when depressed, independent spring means being provided for forcing the sleeve 9 outwardly. For selective permanent closure of the circuit, frictional engagement between the sleeves 6, 9 is provided either (as shown) by a tongue 11 cut in the sleeve 9 and forced against the sleeve 6 by the screw 10, or by mounting a split ring in a circumferential groove on the sleeve 6.
Patent GB-182059-A (GB)
Title: Improvements in stockings
IPC: A41B11/12
Filed: 1921-12-19
Abstract: 182,059. Kayser & Co., J., (Assignees of Baruth, R. H.). Oct. 22, 1921, [Convention date]. Stockings; garters; straps and bands.-A device for supporting stockings or socks comprises a band of fabric 2 drawn into pleats by two elastic bands 4 which are stitched thereto or enclosed in hems 5. The garter so formed is stitched to the top of the stocking 1 at 7.
Patent GB-1404828-A (GB)
Title: Photosensitive material
IPC: G03C1/705
Filed: 1972-07-21
Abstract: 1404828 Coated inorganic materials CANON K K 21 July 1972 [23 July 1971] 34290/72 Heading C7F [Also in Division G2] Particles of inorganic compounds are coated with Ag, Cu or an alloy of Ag and/or Cu by stirring a solution of the metal salt and the particles optionally in the presence of a reducing agent. Specified inorganic compounds are vitreous materials containing S, Se or Te, Cul, Pbl, PbCl 2  CdCl 2  Cu Cl, Sbl 3 , PbS, CdS, ZnS, Pb, Se, Cd Te, Ga As, In As, ZnO and In Sb. Specified reducing agents are ferrous salts, sulphites, hydroquinone, pyrrgallol, ascorbic acid, 1-methylamino-phenol, hydrazines and hydroxylamines. The coated particles may contain 0.01-50 parts by wt. of metal for 100 parts by wt of inorganic compound and are used in photo-sensitive materials, optionally being admixed with a binder or being sintered before such use. Alternatively, a sintered layer of inorganic particles may be treated with an aqueous solution of Ag salt plus reducer (of Example 3) or in organic particles may be precipitated from an aqueous solution of a polymer and then treated with an aqueous solution of Ag salt plus reducer (of example 6) to obtain the desired particles. Specified salts are Ag NO 3  and Fehling's solution.
Patent GB-1083538-A (GB)
Title: Improvements in or relating to electric torches
Inventor: KIEN YUNG MING
IPC: F21L4/00
Filed: 1966-08-01
Abstract: 1,083,538. Ornamenting. MEE TUNG PLASTIC & METAL CO. Aug. 1, 1966, No. 34415/66. Heading B6G. [Also in Division F4] A removable transparent outer casing is provided on an electric battery lamp and decorative material is inserted between the body and the outer casing. The lamp may consist of a front portion having an aperture for the bulb and a rear flange with resilient raised parts which engage in corresponding depressions in the rear portion containing the battery. This portion has a raised flange at the open end and a transparent casing fits over this portion engaging the flange, coloured material, e.g. paper, being inserted between the body and the casing.
Patent GB-1363344-A (GB)
Title: Work carrier for machine tools
IPC: B23Q1/48
Filed: 1972-07-24
Abstract: 1363344 Work carriers SOC GENEVOISE D' INSTRUMENTS DE PHYSIQUE 24 July 1972 [4 Aug 1971] 34434/72 Heading B3B Apparatus for mounting on a machine tool and carrying a workpiece 6 comprises a frame consisting of two portions, a portion 9 securable to a machine tool and a portion 10 movable relative to the fixed portion to become inclined relative thereto, the movable portion having a rotatable plate 7 mounted thereon. Portion 9 has grooves 12 into which pins 13 on portion 10 fit. Fig. 3 shows portion 10 inclined at 45 degrees.
Patent GB-495674-A (GB)
Title: Improvements in and relating to photo-electric cells
IPC: H01J43/16
Filed: 1937-12-13
Abstract: 495,674. Electron multipliers. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 13, 1937, No. 34451. Convention date, Dec. 14, 1936. [Class 39 (i)] In a photo-electric cell wherein the output is amplified by secondary emission, the photo-cathode 1 is translucent ; the secondary emitting electrode 3 may also be constructed as a photo-cathode and may also be translucent. Each electrode may then be used optionally for either purpose. The photo-cathode consists of thin metal layer, an oxide intermediate layer and an alkali metal such as caesium. The anode 2 is central. Reference has been directed by the Comptroller to Specifications, 456,728, 457,493, and 475,995.
Patent GB-860080-A (GB)
Title: Mechanism for adjusting variable-pitch blades of propellers or the like
IPC: B63H3/08
Filed: 1958-10-28
Abstract: 860,080. Variable pitch propellers. McNAB, N. S. Oct. 26, 1959 [Oct. 28, 1958], No. 34486/58. Class 114. Adjusting means for the blades of variable-pitch pro pellers or the like having hubs 2 bored for reception of a shaft 6 and secured by a nut 5 screwed on the shaft and having blades 12 with two operating pins 15, 17 for adjusting the pitch of the blades comprises a hydraulic cylinder 1 and piston 3 constituting two movable elements supported by the propeller shaft and displaceable in opposite directions by pressure fluid, each element having auxiliary members 13, 18 and linkage 14, 19 for transmitting two co-acting forces developed by pressure fluid in the cylinder to said blade adjusting pins 15, 17, two to each blade positioned diametrically opposite one another under the base member 16 of each blade. In an arrangement for a large propeller, Fig. 3, the cylinder 1a is secured to a tubular member 26 slidable in the hollow propeller shaft 6, and the piston 3a is secured to a rod 32 slidable in the member 26. The tubular member 26 carries a collar 27 having an arm 28 coupled by a link 29 to adjusting pin 30 on the propeller blade, The rod 32 carries a collar 33 having an arm 34 coupled to the other adjusting pin 31, on the blade. Specification 828,942 is referred to.
Patent GB-461586-A (GB)
Title: Improvements in or relating to shelves, plate racks and the like
IPC: F24C15/12
Filed: 1935-12-12
Abstract: 461,586. Hot - plate lids and plate racks and like shelf arrangements. SOUTH METROPOLITAN GAS CO., TEMPLEMAN, C. J., and SPAVIN, C. Dec. 12, 1935, No. 34536. [Class 126] [Also in Group XVII] The invention is an improvement on the similar device described in Specification 431,454 and, though described as applied to a gas cooker, is of general application. The lid 2, hinged to the hot-plate, table, &c., 1, is connected by links 11 to the plate rack, shelf, &c. 8, while links 6, pivoted to lugs 5 on the hot-plate, carry a rod 7 pivoted to the plate rack and having its ends guided in slots 9 in the lid frame. In the open position shown the rod ends 7 lie in retaining-notch extensions of the slots 9 and are maintained there by the pressure of springs 4 urging the lid towards its closed position. In the closed position the rack 8 and the links 11, 6 fold up flat within the lid.
Patent GB-1357195-A (GB)
Title: Automatic transmission
IPC: F16D55/00
Filed: 1971-07-23
Abstract: 1357195 Disc brakes AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 23 July 1971 [30 July 1970 30 June 1971] 34582/71 Heading F2E A brake in an automatic transmission mechanism comprises discs, an hydraulic piston and cylinder actuator and a resiliently yieldabledevice for returning the discs to a released position, comprising at least one resiliently yieldable metal washer which bears at its outer periphery against a fixed abutment, the washer being recessed at its inner periphery to allow extension portions of the piston to act on a plate to actuate the discs. The brake F 1  comprises a piston 6 having the extensions 17 contacting a spacer washer 18 abutting the plate 3. Two Belleville washers 13, 14 abutting at their inner peripheries, act as the return device. Washer 13 abuts a support surface 15 carried by the piston 6, and the washer 14 abuts a fixed ring 11. The washers 13, 14 may be replaced by a single washer abutting the piston 6 at its inner periphery, and a fixed abutment at its outer periphery. Fig. 1 shows a brake, F 2 , wherein the piston 26 acts through the return washer 28 and a spacer sleeve 30 to the pressure plate 25. The abutments for the piston 26 and the sleeve 30 lying on approximately the same washer radius.