baber/WOPTO huggingface dataset:
Patent GB-280548-A (GB)
IPC: B41L13/04
Filed: 1927-11-08
Abstract: 280,548. Renart, L. Nov. 9, 1926, [Convention date]. Pile tables and supports for sheet feeds; sheetseparators.-The Specification as open to inspection under Sect. 91 (3) (a) comprises sheet-feeding apparatus for a rotary duplicator as follows :-A pile of sheets is supported on a table 80, Fig. 1 (Cancelled), and between side guides, the leading corners of the sheets engaging beneath abutments 82. A feed roller 69 is rotated by gearing from the crank 13 to buckle the top sheet out of the abutments and feed it over a plate 78 to the duplicator drum 1. The roller 69 is supported by arms 70 pivoted at 72, and is periodically raised and lowered by a cam 14, Fig. 5 (Cancelled), adjustably fixed to a side plate of the drum 1 by bolts 15 passing through arcuate slots 16 in the cam. The pile-table 80 is automatically raised by an intermittently-rotating screw 49 engaging a screw-threaded sleeve 52 integral with a bracket 54 supporting the table 80. The screw 49 is rotated by a bevel wheel 48 fixed on a shaft 45, Fig. 6 (Cancelled), which is rotated through ratchet mechanism by a reciprocating link 39 connected to an eccentric rod 28 mounted on an eccentric pin 26 fixed to a gear 25 rotated by the crank 13. The rod 28 carries a pin 20 riding in a slot 30 in an arm 31, which is pivoted at 32, and is connected by a link 33 to an eccentric pin 34. By turning a dial 35 fixed to the pin 34, the inclination of the arm 31 is varied, and therefore the stroke of the link 39 and the amount of intermittent movement of the feedtable are also varied. The link 39 is connected to a bell crank 41 carrying a pawl 42 engaging notches 43 in a boss 44, which drives the bevel 48 through a set of six pawls 84 engaging a ratchet disc 85 fixed on the shaft 45. The pawls are peripherally staggered so that one tooth is always in engagement, whereby the full movement of the link 39 is always transmitted. The feed-table may be lowered by releasing the pawl 42 and turning the shaft 45 by hand. This subject-matter does not appear in the Specification as accepted.
Patent GB-724055-A (GB)
Title: Improvements in or relating to aircraft receiving antennae
Inventor: KIER MICHAEL
IPC: H01Q1/28
Filed: 1952-11-26
Abstract: 724,055. Aerials. DECCA RECORD CO., Ltd. Nov. 24, 1953 [Nov. 26, 1952], No. 29979/52. Addition to 682,274. Class 40 (7). A non-directional radio receiving antenna system for use on an aircraft comprises an antenna member and a streamlined conducting shielding member disposed on the craft in front of the antenna member. The antenna system is designed to shield the antenna member from precipitation static. In one embodiment the antenna element may consist of a metal rod 20 encased in a polythene sheath 21 to prevent corona discharge and also to provide a streamlined outer contour. A bush 23 is provided for mounting the member on the aircraft skin. In front of the antenna member is the shielding member comprising a streamlined metal element 30 with a metal cap 31 which is centrally mounted on an outwardly tapering curb 32. Strengthening plates 33 and 34 are provided to give rigidity to the shield structure and a tube 36 attached to these is used for mounting it on the craft. The antenna may be less than a hundredth of the working wavelength long, in some cases much less. Thus for frequencies of the order of 100 kc/s. the aerial length may be seven or eight inches. Under such circumstances it is aperiodic and will receive signals over a wide frequency band. The aerial system may be mounted on the upper or under side of the craft with the shielding member 10 at or behind the tangent point 12 where a horizontal plane 14 containing the direction of level flight touches the craft. The shielding member 10 and antenna member 11 are preferably perpendicular to the plane 14. Specification 620,479 is referred to.
Patent GB-280559-A (GB)
Title: Improvements relating to the refining of petroleum oils
IPC: C10G73/06
Filed: 1927-11-09
Abstract: 280,559. Sharples Specialty Co., (Assignees of Jones, L. D.). Nov. 9, 1926. [Convention date]. Paraffin wax, extracting.-Petroleum oils or residues containing crystalline wax which cannot be removed by diluting, chilling, and centrifuging, are thus freed therefrom by first dosing with amorphous wax in such proportions as to make the wax precipitated on cooling sufficiently heavy and amorphous. The wax may be added as substantially oil-free petrolatum or as oil containing amorphous wax. An amorphous wax of high melting point may be used so that the wax mixture separated is hard and can be at once used commercially. Substances, other than hard asphalt, commonly removed from the oil by acid or clay treatment are preferably retained therein or are added with the amorphous wax, as they assist centrifugal separation. The Specification also describes the separation of oil from petrolatum obtained from cylinder stocks by cold settling, such petrolatum being mixed with light distillates containing wax, chilled, and centrifuged, whereby a substantially wax-free heavy oil of medium viscosity passes out. Specifications 119,288, [Class 23, Centrifugal machines &c.]; 166,031, 197,389, and 201,986 are referred to.
Patent GB-389171-A (GB)
Title: Improvements in the manufacture and production of liquid hydrocarbons of the benzeneseries
IPC: C07C5/10
Filed: 1931-10-30
Abstract: Naphthalene is converted into benzene homologues containing about the carbon atoms by heating with hydrogen under a pressure of 50-350 atmospheres in presence of a catalyst containing molybdic or tungstic oxides first at a temperature of 350-440 DEG  C. and then, with or without isolation of the products, at a temperature of 460-500 DEG C.  Crude or pure naphthalene or mixtures containing naphthalene, e.g. a solution of naphthalene in tetrahydronaphthalene, may be employed as starting material; in the first stage a partial hydrogenation of the naphthalene takes place whilst in the, second the naphthalene nucleus is substantially split up yielding such hydrocarbons as diethylbenzene, methylpropylbenzene and the corresponding wholly or partly hydrogenated compounds, which are useful as solvents or as anti-knocking additions to motor fuels.  The catalyst for the first stage may contain difficultly-reducible metal oxides, e.g. zinc oxide and magnesium oxide but not oxides of the alkali and alkaline-earth metals, or readily-reducible oxides such as nickel and cobalt oxides but not the oxides of mercury, thallium, tin and lead.  The second stage catalysts may include a readily-reducible oxide of a metal melting above 400 DEG  C., e.g. copper oxide and titanium oxide, but it is also possible to employ the same catalyst as in the first stage.  When crude naphthalene is treated, catalysts immune to sulphur poisoning are used in the first stage and the product is isolated and washed with sodium hydroxide prior to the second-stage treatment.  Examples are given.ALSO:Compounds suitable for addition to motor fuels to prevent knocking comprise benzene homologues containing about ten carbon atoms which are obtained by heating naphthalene with hydrogen under a pressure of 50-350 atmospheres in presence of a catalyst containing molybdic or tungstic oxides, first at a temperature of 350-440 DEG  C. and then, with or without isolation of the products, at a temperature of 460-500 DEG  C.
Patent GB-855419-A (GB)
Title: A method for producing paper
IPC: D21H17/45
Filed: 1958-09-22
Abstract: A cationic, water-soluble polymer is made by subjecting a water-soluble polyacrylamide, of average mol. wt. of more than 10,000, e.g. 50,000 to 500,000, to the Hofmann reaction until 0,1 to 15% of the amide groups have been reduced to amino groups.  Instead of polyacrylamide, may be used polyethyl- or -methylacrylamide, or copolymers with maleamide or crotonamide and minor amounts of styrene or acrylonitrile.  Alum may be added, or hardening may be effected with methanol, ethanol, propanol, acetone, or dioxane &c.  Filler and rosin size may also be added to the paper pulp.  In an example, to 355 parts of a 20% polyacrylamide solution are added slowly 40 parts of 5,25% sodium hypochlorite with 2,3 of sodium hydroxide, the temperature increasing from 30 DEG  to 37 DEG C., and after 30 mins. more, 11 parts of 18% hydrochloric acid are added to neutralize to pH = 6,9.  The resin contains 0,2% amino nitrogen, corresponding to 1% vinyl amine units.
Patent GB-287606-A (GB)
Title: An improved method of and means for automatically sorting or separating plates and other articles or material by weight
IPC: B07C5/18
Filed: 1927-09-29
Abstract: 287,606. Davies, J . and Thomas & Co.. Ltd., R. Sept 29, 1927. Separating or sorting by weighing.-A machine for separating or sorting plates and the like by weight comprises a balance beam having a plurality of travelling belts, a stack of receptacles arranged at the free end of the beam, a fixed platform above the stack of receptacles, a second balance beam in advance of the stack of receptacles, a second stack of receptacles in advance of the second beam, and power-driven means for feeding the plates through the machine. The plates 2 are fed through rotating rollers 3 onto a number of travelling belts 4 mounted on drums carried upon a weigh beam 7. The weigh beam is fulcrumed on a knife-edge 8 and carries balance weights 9 which may be adjustable. An adjustable weight 40 may also be provided upon the beam. As a plate is carried along by the belts 4 the weigh beam sinks in proportion to the weight and passes the plate through rotating receiving-rollers 11 onto one of the shelves 10. Plates lighter than those deposited on the upper shelf 10<a> pass onto a fixed platform 27 and are conveyed by transfer rollers 27x to a second weigh beam 23 operating in a similar manner to the weigh beam 7 so as to deliver the plates to shelves 26. A motor 12 is provided for driving the travelling belts, and the various feed, receiving and transfer rollers.
Patent GB-539775-A (GB)
Title: Improvements in and relating to gun mountings
IPC: F41A27/08
Filed: 1939-11-16
Abstract: 539,775. Gun mountings. KENDALL, W. D., and BRITISH MANUFACTURE & RESEARCH CO., Ltd. Nov. 16, 1939, No. 30222. [Class 92 (i)]  Relates to turntable mountings for automatic magazine-fed guns of the kind in which the trunnion axis 28 is situated to the rear of the turntable axis 26, the rear walls 25<SP>1</SP> of the carriage cheeks 25 being vertical or sloped at a small angle to the vertical to prevent fouling of the magazine 31 at high angles of elevation. According to the invention the cheeks 25 are strengthened by webs 27 extending to the edge of the turntable and arranged in the plane of the trunnion axis.
Patent GB-1535245-A (GB)
Title: Method for producing a green-coloured anodic oxide film on an aluminum or aluminum base alloy article
IPC: C25D11/24
Filed: 1976-07-21
Abstract: 1535245 Colouring anodized aluminium SUMITOMO ALUMINIUM SMELTING CO Ltd 21 July 1976 [24 July 1975 25 Feb 1976] 30284/76 Heading C7B A green anodic oxide film is produced on an A1 or Al alloy article by subjecting it to A.C. anodizing in a bath containing sulphuric acid, optionally to D.C. anodizing preferably in the same bath, then to immersion in an aqueous bath containing Cu ions, e.g. as sulphate, nitrate, acetate or chloride, and an acid, e.g. sulphuric, nitric, hydrochloric, phosphoric, sulphosalicylic or naphthalene disulphonic acid, prior to an after-treatment such as sealing by boiling water, steam or heat-treatment in an aqueous amine solution e.g. containing ethanolamine. The A.C. anodizing bath may further contain an organic acid e.g. oxalic or an aromatic sulphonic acid, and Cu ions; A.C. includes normal and distorted sine wave and A.C. superimposed on D.C. if current is reversed periodically. Both electrodes may be of Al (alloy). Prior to anodizing the Al may be pretreated first in aqueous NaOH then HNO 3  solution.
Patent GB-149879-A (GB)
Title: Improvements in or relating to means for supporting or holding in position plants and the like
IPC: A01G9/12
Filed: 1919-12-04
Abstract: 149,879. Mitchell, F. Dec. 4, 1919. Plants, supporting and training.-A device for fastening plants to supports, and for like purposes, comprises a pliable or flexible metallic band or like member having a round part adapted to be bent by hand for receiving or encircling a plant stem &c. and a flattened part to be bent round and grip a support. The device shown in Fig. H consists of a round lead wire a flattened out at one end a<1>. The unflattened part is coiled round the plant c and the flattened part is wound round a rod or other support d so as to grip it. The un. flattened part may be tapered and the flattened part may be semicircular in section or formed with one or more longitudinal grooves or corrugations. In the form shown in Fig. 4, both ends are flattened and bent round supports. The part a' is bent round the rod d, folded over itself at a<2>, and then bent backwards and again passed round the round, so that the part a<3> locks the loop encircling the rod.
Patent GB-367740-A (GB)
Title: Improvements in catches for brooches
IPC: A44B9/18
Filed: 1931-11-02
Abstract: 367,740. Safetypins &c. ALTSHULER, I., 116, Holborn, and ROGERS, A. R., 270, Long Lane, East Finchley, both in London. Nov. 2, 1931, No. 30301. [Class 131.] A brooch catch comprises a part 3 extending at rightangles from the C-shaped or hooklike member 1 for accommodating the pin 4, and a catch plate 5 pivoted to and moving in a longitudinal slot 6 in the side of the part 3 so that when closed the plate 5 extends across the member 1 beneath the pin 4, means being provided for retaining it in this position. The edge of the catch plate may be formed with a convexity 5c for snapping across the edge 6a of the slot 6 and the plate itself may be manipulated by a knob 5b which also limits its closing positions. The end 5a of the catch plate may engage with a slot 8 in the other side of the part 3 in the closed position and also engage the inner end of the slot 6 to limit the opening movement. A spring may alternatively be provided for holding the catch plate closed. The part 3 may be of lunette, elongated U, triangular or other shape and serves' as a point protector. It may be closed over at the top and be fixed direct to the brooch and carrv the C- shaped member.
Patent GB-297592-A (GB)
Title: Improvements in or relating to road and rail vehicles
IPC: B62D1/26
Filed: 1927-11-11
Abstract: 297,592. Tlaskal, L. Nov. 11, 1927. Steering by rails or like guides; relay or power apparatus; hydraulic and pneumatic transmission.-A motor road vehicle is steered by means of a bogie running on a predetermined line or track and acting automatically on the usual driver's steering mechanism of the vehicle. In the construction shown in Figs. 2 and 3, an endless track tractor T is coupled to a truck L the lateral movements of which are used to steer the tractor. The tractor steering-gear comprises two hand levers 88, one for each track; when one of these levers is actuated the corresponding track is retarded and the tractor turns to that side. An arm 85 on the truck L carries a pin l having a lost-motion connection 100 with a slide valve 105 on the tractor. The valve controls a pressure inlet 110, and exhaust passage 107, and passages 111, 117 leading to two cylinders 112 having pistons 114 connected to the two steering levers 88. When the track L, and therefore the pin l, moves relatively to the tractor the valve 105 is moved from the central position shown and one of the cylinders 112 is put into communication with the pressure inlet 110, its piston 114 operates the corresponding lever 88 and the tractor is steered until the deviation between the truck and the tractor is corrected. If the truck leaves the rails and the pin l is in consequence moved an abnormal distance away from the central position the valve 105, after having put one of the passages 111, 117 in communication with the pressure inlet, does the same for the other passage, so that both levers 88 are actuated and the tractor is stopped. The pressure fluid may be exhaust gases, steam, or fluid from a reservoir. Modifications are described in which (1) separate valves operated by a single cam member connected to the pin l are employed, (2) electric control means are employed, a sliding switch member being used instead of the valve 105, (3) the pin l disconnects itself from the tractor and the tractor engine is switched off in case of excessive relative movement between the tractor and the steering truck, and (4) the tractor may be arranged between a leading truck and a trailing truck, each truck being provided with a pin l for actuating the tractor steering-gear.
Patent GB-918148-A (GB)
Title: Improvements in thermostatic controls for heating appliances
Inventor: SHERLOCK JOHN EDWARD
IPC: H05B1/02
Filed: 1960-09-02
Abstract: 918,148. Temperature-responsive actuating- elements. BRITISH THERMOSTAT CO. Ltd. Aug. 29, 1961 [Sept. 21, 1960], No. 30346/60. Class 64 (2). A thermostatic control, for the hotplate of an electric stove or the top burner of a gas cooker, having a non- flexible sensing capsule 4 connected by a capillary tube 5 to a flexible control capsule (not shown) operating the electric switch or gas valve, the capsule 4 being spring- loaded by the tube 5 and a spring 6 to make good contact with a superimposed cooking vessel, is characterized by the capsule 4 being carried by a spider 7 having sprung legs 9 which engage, by means of tongues 11 thereon, in slots 12 in a housing 2 fixed to support pillar 1, the legs 9 being extended beyond slots 10 in the bottom of housing 2 so that by pressing the extensions inwardly the tongues 11 may be released from slots 12. A flame shield 13 is carried by the tongues 11.
Patent GB-756572-A (GB)
Title: Improvements in or relating to building blocks
IPC: E04C1/39
Filed: 1953-11-03
Abstract: 756,572. Building blocks. WARING, W. H. July 13, 1954 [Nov. 3, 1953], No. 30383/53. Class 87(1). A rectangular building block is provided in its lower face with four symmetrically arranged elongated cavities 11-14 and a similar central cavity 15 none of which extend completely through the block. Specifications 150,386 [Class 20(iiii)], 242,040 [Class 87(i)], 454,949, 669,750 and 685,157 are referred to.
Patent GB-248862-A (GB)
Title: Improvements in means for supplying electric current to wireless apparatus from direct-current supply mains
IPC: H04B1/16
Filed: 1924-12-18
Abstract: 248,862. Baker & Sons, Ltd., F., and Clarkson, F. C. Dec. 18, 1924. Converting pulsating currents into steady con. tinuous currents. - Direct-current supply mains 3, 4 are connected to the low-tension terminals of wireless apparatus through leads 11, 12, the lead 12 being arranged in series with an adjustable resistance 13 and an adjustable shunt resistance 16 being provided across the leads on the output side of the resistance 13. The resistance 13, which is variable independently of the resistance 16, may take the form of a tapped coil, the tappings being connected to contact studs 14, or lamps connected in parallel may replace the coil or be provided in addition thereto. The slider 17 on the adjustable shunt resistance 16 may be connected directly to one of the lowtension terminals, the shunt in this case extending directly across the leads. The arrangement is combined with the means for supplying hightension voltage to wireless apparatus as described in Specification 248,861, choke coils 7, 8 being provided in leads 1, 2, condensers 5, 6, across the leads on opposite sides of the choke coils, an incandescent lamp or Neon tube 9 in one or each lead between the first condenser and the choke coils and a third or intermediate condenser 10 across the leads to a point between the lamp and the choke coils. The leads for the low-tension supply a.re taken from the leads 1, 2 immediately after the first condenser.
Patent GB-1398240-A (GB)
Title: Inflatable dams
IPC: E02B7/00
Filed: 1971-06-29
Abstract: 1398240 Inflatable dams NATIONAL RESEARCH DEVELOPMENT CORP 22 June 1972 [29 June 1971] 30495/71 Heading E1H An inflatable dam 6, Fig. 2, has a tension member 17 with anchors 18 which restrain the dam against horizontal forces, the member 17 being held down against the river bed by suction developed under a seam 16 by open pipes 20 laid in the river bed. The pipes apply the reduced pressure from the lower pool 9 to the area 22. The same effect may be produced by laying on the river bed a layer of graded particulate material, if such does not occur naturally. Fig. 4 shows a double construction in which holding suction can be produced at either side of the dam 6.
Patent GB-1471005-A (GB)
Title: Apparatus for locating cables or the like ducting members of  circular cross section
IPC: F16L3/16
Filed: 1974-07-10
Abstract: 1471005 Clamps BEWA BETRIEBSBEDARF FUER BAHNEN BERGBAU UND INDUSTRIE 10 July 1974 [11 July 1973] 30531/74 Headings E2A and E2B Apparatus for locating a plurality of cables or other ducting members on a support comprises clamps 17 passing through a slot 14 in the support; each clamp comprises a hook portion for engaging over a cable 21 and having an apertured abutment 173 projecting into the slot 14 and retaining the head of a screw bolt 174 and a channel member 178 engaging below webs 141, 142 defining the slot 14 is mounted on the bolt and a nut 177 and the bolt 174 for tightening against the webs. As shown supporting plates 161, 162 and dependent webs 141, 142 extend from a carrier 13 suspended from a trolley running gear running on a rail 11. Each portion has two arms 171, 172 engaging a cable. By slacking the nut 177 the member 178 may be rotated through 90‹ so that it can pass through slot 14 thus enabling 6m cable to be removed without having to remove others.
Patent GB-228301-A (GB)
Title: Improved process of concentrating aqueous solutions of volatile substances
IPC: C07C51/42
Filed: 1923-12-04
Abstract: Aqueous solutions of volatile substances, such as methyl and ethyl alcohols, formic and acetic acids, acetone and methyl acetate, are concentrated by mixing therewith anhydrous hydrate-forming salts, such as calcium chloride, iron sulphate, copper sulphate, sodium sulphate, aluminium sulphate, alum, borax, &c., allowing the hydrated salt to crystallize and separating the volatile substance by passing a solvent thereof, such as water, through the mass in quantity less than the amount of water removed.  In the case of water being used, it is preferably in the form of a saturated solution of the salt employed.  In an example vinegar is concentrated using anhydrous ammonium alum and the extraction of the crystallized mass is carried out systematically in a series of cells.  The crude concentrated acetic acid is distilled to remove solids and colouring matter. The salt recovered is again dehydrated and returned to the process.ALSO:Aqueous solutions of ethyl alcohol are concentrated by mixing therewith anhydrous hydrate-forming salts, such as calcium chloride, iron, copper, sodium, or aluminium sulphate, alum, borax &c., allowing the hydrated salt to crystallize and separating the ethyl alcohol by passing a solvent thereof, such as water, through the mass in quantity less than the amount of water removed.  In the case of water being used, it is preferably in the form of a saturated solution of the salt employed.  The extraction is preferably carried out systematically in a series of cells, and the ethyl alcohol afterwards distilled to remove solids and colouring-matter.  The salt recovered is again dehydrated and returned to the process.