baber/WOPTO huggingface dataset:
Patent GB-635219-A (GB)
Title: Improvements in or relating to synthesis of hydrocarbons
IPC: C07C1/06
Filed: 1946-08-28
Abstract: Hydrocarbons are synthesized from carbon monoxide and hydrogen in the presence of a catalyst comprising a Group 8 metal at a pressure of 15-2000 p.s.i.g., a hydrocarbon fraction boiling between 25 DEG  and 200 DEG  C., and comprising straight and/or branched chain saturated or unsaturated hydrocarbons being introduced into the reaction zone, said fraction being wholly in the vapour phase under the reaction conditions.  The added hydrocarbons have from 5-12 carbon atoms and are preferably unsaturated, e.g. hexenes, heptenes or octenes, or cracked olefinic fractions.  They may be injected separately, if desired, at a number of points or with the reactant gases. Preferably a recycled portion of the reaction product boiling at 25-200 DEG  C., equivalent to 5-7 parts by weight per 10 parts of total hydrocarbon product, is used. Alternatively, a product boiling above 200 DEG  C. may be cracked and the fraction of the desired boiling point recycled.  Preferred temperature and pressure ranges are given for the following catalysts: cobalt-thoria, iron-alkali and/or copper, sintered iron, ruthenium, nickel-thoria, nickel-manganese-alumina, and cobalt.  Molar ratios of H2 : CO are from 3 : 1 to 1 : 1, space velocities from 80-400 vols./vol./hr.  The synthesis gas may be obtained from methane, steam, and carbon dioxide in the presence of nickel at 700-800 DEG  C.  The synthesis products are fractionally condensed, and fractionated as desired.  A final hydrogenation may be effected.  Examples show the increased yield of liquid hydrocarbons when a product fraction boiling between 25 DEG and 200 DEG  C. is recycled in a synthesis with cobalt-thoria catalyst at 200 DEG  C. and 100 p.s.i.g.
Patent GB-1476357-A (GB)
Title: Valve gear for internal combustion engines
IPC: F01M9/10
Filed: 1974-06-11
Abstract: 1476357 Valve gears for IC engine EATON CORP 11 June 1974 [18 June 1973] 25784/74 Heading F1B [Also in Division F2] In an hydraulic automatic back-lash adjuster pillar 40, the usual engine oil pressure feed thereto is replaced by a simple gravity feed. The back-lash adjuster pillar 40 provides zero-lash for an overhead cam-shaft I.C. engine valve operating mechanism of the type in which a rocker arm 20 has one end 23 pivotally mounted on a plunger 42 extending from the adjuster pillar 40, the other end 25 engaging a valve stem 10, and a portion 21 of its upper surface between its ends engaging a cam 31. Engine oil is pressure-fed from a central cam-shaft duct 33 and radial port 34 to outwardly spray onto a collecting shield 3 from the end of which it gravity drips via a rocker arm aperture 24 into a central reservoir 44, 45a, 46 of the adjuster pillar 40, the usual one-way spring-loaded ball-valve 48 separating the reservoir from the usual oil-filled plunger support cavity 41c which maintains the position of the plunger 42 for correct lash adjustment. Additionally, the end of the rocker arm 20 may be formed with a deflecting shield 26 to also collect oil spray from the cam-shaft and direct it via the aperture 24 to the central reservoir in the pillar 40. The arrangement is said to reduce the load applied to the cam-shaft via the gravity-fed pillar 40, as compared with the usual pressure-fed pillar, whereby lighter engine valve springs may be used to lower the valve gear dynamic forces at high engine speeds.
Patent GB-616143-A (GB)
Title: Feeding mechanism for cylindrical objects
IPC: B65G47/14
Filed: 1946-08-29
Abstract: 616,143. Feeding cylindrical objects. DUTAILLY, M. L. S. Aug. 29, 1946, No. 25907. Convention date, Jan. 27, 1940. [Class 78 (i)] In a device for delivering cylindrical objects from a hopper to a conveyer or machine, the objects are delivered one at a time by a member of substantially cylindrical form which is constituted by notched elements displaceable angularly with respect to one another to form receiving portions, the size of which is suited to the dimensions of the objects. The distributer comprises two series of star-wheels 18, 19 carried by an axle 12. This axle has rotatably mounted on it two sockets, an inner socket 13 with a groove 14 and an outer socket 17 which has a wider groove cut along its length. The star-wheels 18, 19 are secured to the sockets by projections 18<1>, 19<1> which fit into the grooves and are separated by rings 20 and are adjustable so that only one article can penetrate into the aperture formed. A nut 16 on the axle locks the stars in the required position. A ratchet 15 on the shaft 12 is operated through a pawl 23 by a rod 24 connected to a loose collar 22, the alternate movements of which cause an angular movement of the axle, equal to the distance between adjacent branches of the stars 19 and allows for discharge of the objects. The magazine comprises four uprights 1, 2, 3 and 4, an inclined base which is formed by plates 7 between uprights 2 and 4 and an anterior wall formed from plates 9 between uprights 1 and 3. Plates 10 and 10<1> constitute the sides and are easily removable to vary the spacing b according to the length of the articles. Adjustable plates 25 between uprights 1 and 3 provide an exit shoot of suitable diameter for the articles which pass either to a horizontal chain conveyer or to an angular cradle 27, Figs. 5 and 6, which is supported adjustably by screw-and-nut mechanism 28, 28<1> above a pivoted member 29. The screw 28<1> bears on a roller 36 mounted on a sliding shutter 34 which is urged upwards by a spring. The member 29 is rocked by a rod 32 in synchronism with the rod 24 and as it turns upwards, the shutter moves with it and closes the shoot. Each article slides from the cradle into a pocket 33 on a conveyer, the end of the article being positioned by a finger 40 actuated by rack-and-pinion mechanism.
Patent GB-1315755-A (GB)
Title: Preparation of photographic silver halide materials
IPC: G03C1/09
Filed: 1971-04-19
Abstract: 1315755 Photographic silver halide emulsion EASTMAN KODAK CO 19 April 1971 [6 April 1970] 25917/71 Heading G2C An azaindene and a monovalent gold compound are incorporated into a sensitive silver halide photographic emulsion which is free of sulphur sensitization prior to their incorporation and the emulsion is then subjected to a digestion step The gold compound may contain both monovalent gold atoms and sulphur atoms. Specified gold compounds are sodium aurous thiosulphate, potassium aurous thiosulphate, ammonium aurous thiosulphate, 2-aurosulpho-benzothiazole methochloride and aurous sulphide. The azaindene preferably has an acidic hydrogen atom capable of forming a silver salt of the azaindene in aqueous solution. The azaindene may be added to the emulsion prior to or simultaneously with the gold compound. The emulsion is preferably digested for at least 20 minutes at 70‹C. Generally, digestion is not effected between the azaindene addition and the gold compound addition, but the emulsion may be digested at this point. By means of this process silver hailde emulsions can be sulphur and gold sensitized in one chemical sensitizing step. Specification 1085638 is referred to:
Patent GB-1182858-A (GB)
Title: Clamping Mechanism for Machine Tools.
IPC: B23Q1/70
Filed: 1968-05-30
Abstract: 1,182,858. Boring bars. DE VLIEG MACHINE CO. 30 May, 1968 [19 June, 1967], No. 25951/68. Heading B3C. A boring bar 12 is rotatable in a housing 13, which is slidable on bars 14, 15, and the housing is clamped on the bars in the required position by a pair of hydraulic clamps 16. Each of the bars 14, 15 is located in bearings 19, 25, which provide shoulders 26, 27. Sleeves 28, 34 of each bar form an annulus 42 to which fluid pressure is supplied, so as to move the sleeves against the shoulders, and also the portion 31 of sleeve 28 into locking engagement with the bar. The fluid is supplied to, and exhausted from, the cavities by a solenoid controlled valve (55) and piston (49), Fig. 34 (not shown).
Patent GB-271395-A (GB)
Title: Improvements relating to means for securing the lids of chests, boxes and the like
IPC: B65D45/16
Filed: 1926-10-18
Abstract: 271,395. Junge, W. Oct. 18 1926. Seal fastenings. - A lid 1 is secured to a chest 2 by a flexible pawl 7 fastened to a locking-plate 6 by a lead seal 33, and also by hooks 3 engaging recesses 4: covered by plates 5. The pawl 7, Fig. 7, has lugs 25 adapted to embrace a bracket 18, Fig. 9, on the plate 6. Each plate 5 is shaped as shown in Fig. 11, and has a slot 9 to receive the hook 3, Fig. 10, which has an inclined lower edge 12 so as to press the lid on to the chest as the lid is slid into position. In a modification, the pawl 7 lies almost flush with the bottom surface of the lid 1, and engages a lug on the upper rim of the plate 6, which is slotted to receive lugs formed on the pawl casing.
Patent GB-1153840-A (GB)
Title: Dressing Combs
Inventor: CAMPBELL GEOFFREY DUNCAN LETHA
IPC: A45D24/04
Filed: 1968-05-31
Abstract: 1,153,840. Dressing comb. G. D. L. CAMPBELL (A. Abraham). 31 May, 1968, No. 26131/68. Addition to 1,118,279. Heading A4V. In a dressing comb as claimed in Claim 1 of Specification 1,118,279, the backs of the two sets of teeth are of similar construction and/or the two sets are connected together for relative movement by a concealed connection or connections. Two sets of teeth 31 (and 30) have their backs superimposed, there being mutually engaging headed pins 36 and slots 35 provided on the backs of both sets of teeth. The slots may be replaced by flanged channels (see Fig. 4) which, since do not open through the outer surface of the backs, provide concealed connections when the two sets of teeth are united.
Patent GB-888341-A (GB)
Title: Improvements in or relating to systems for heating or cooling rooms by radiation
Inventor: NATEROP JOHAN ALBERT
IPC: F24D3/16
Filed: 1959-07-30
Abstract: 888,341. Radiators for heating and cooling buildings. STRAMAX A.G. July 30, 1959, No. 26169/59. Class 64(2) Heating or cooling pipes 3 on a wall 1, Figs. 3, 4, or in a wall 1, Fig. 5, are associated with vertical. metal sheets 4 placed. side-by-side to form a strip extending along the walls less than halfway down them and touching the ceiling: In Fig. 3, the horizontal pipe 3 is enclosed in an inward bulge of the sheet 4 closed by a strip 12, which presses the pipe in the bulge. In Fig. 2, which shows three aligned sheets 4 with fillets 7 covering their joints, the pipe is in an outward bulge 4<SP>1</SP> while in Fig. 4 the pipe 3 is integral with the sheet 4, the lengths of pipe being inter-connected by welding, soldering or screwing. In Fig. 5, there are sheets 4 forming part of a wall 1 between, two rooms, the pipe 3 in this case being of U-shape. Heat insulation 10 is arranged along the wall and ceiling where the radiation is mounted. A layer 11 of sound-absorbing material may be applied to inner surfaces of the sheet 4 and the sheet areas so covered are perforated. An edge of the sheet 4 may be bent to form a flange where it is secured to the wall or ceiling and where it is bent thus or to form the bulge there may be folds for expansion. Edges of the sheets 4 may be held in polyvinyl chloride extending along or arranged at intervals in a channel 13, Fig. 3.
Patent GB-821423-A (GB)
Title: Improvements relating to steam generators
Inventor: PLUMMER GILBERT ASHTON
IPC: F22G5/02
Filed: 1954-09-09
Abstract: 821,423. Regulating superheat in watertube steam boilers. THOMPSON WATER TUBE BOILERS Ltd., J. Sept. 7, 1955 [Sept. 9, 1954; March 18, 1955], Nos 26172/54 and 7990/55. Class 123(3) In a water-tube boiler of the forced circulation type having a combustion chamber 2 lined with steam generating tubes and fired by oil burners 3, the combustion gases passing upwardly through a bank 6 of tubes serially connected to tubes 4 and then through a superheater tube bank 9, the size of the chamber 2 and the rate of firing of the burners 3 is such that the heat output is sufficient only to generate steam with a moderate degree of superheat which, when the unit is part cf a marine installation, is suitable for manoeuvring or astern operations. During normal operation, when steam with a constant high degree of superheat is required, auxiliary burners 11 fire into a space 10 between the tube bank 6 and the superheater, the firing rate being regulated to maintain the superheat constant irrespective of load variations. The burners 11 are of the type having self-contained combustion chambers which are located outside the boiler casing, each burner injecting a stream of non-luminous, high temperature gases into the space 10. These gases mixed with the tempering gases from chamber 2 pass through the superheater at a temperature high enough to give the required steam temperature but insufficient to cause overheating of the superheater tubes or deposition thereon of slag.
Patent GB-386364-A (GB)
Title: Improvements relating to grinding apparatus for slicing machines
IPC: B24B3/46
Filed: 1931-09-18
Abstract: 386,364. Sharpening slicing-machine knives. SMITH, G. A., (trading as SMITH CO., G. A.), and WILLIAMS, F. W., Roseleigh Villa, Union Street, both in Desborough, Northamptonshire. Sept. 18, 1931, No. 26186. [Class 60.] Apparatus for grinding the rotary knife e of a slicing-machine consists of a casing b slidable but not rotatable-on a spindle c, which is secured adjustably to the machine, the casing carrying a grinding-stone a for the bevelled face of the knife, and a stone g for removing. burrs. The stone a is brought into and out of contact with the knife by rotation of a nut f, rotatable but not axially movable in the casing b and engaging a quick pitch thread c<1> on the spindle c, and the stone g is moved up to the knife by a head g<2> on the spindle of the stone, which is normally held out of contact with the knife by spring. The stones are rotated by their contact with the knife ; a compression spring is provided between the spindle and a cover-plate b<3> on the casing. The spindle c is screwed at its lower end into a screwed bore in the machine, and is locked in adjusted position by a nut c<3>.
Patent GB-338619-A (GB)
Title: Improvements in steam boilers
IPC: F22B7/12
Filed: 1929-08-28
Abstract: 338,619. Seley, C. A. Aug. 28, 1929. Partitions and baffles in water space. - In marine boilers having laterally spaced combustion chambers opening into a furnace a pair of plate members 19, 20, are disposed in the space between each two chambers closing the rear and front sides of the space, to form an open-ended, upright duct 22 to provide a siphon action therethrough, the plate members having side flanges 21 riveted to the side sheets 8 of the chambers and to the internal flanges of the front and rear sheets 6, 7 of the chambers. The plate members are widened at their lower ends.
Patent GB-318011-A (GB)
Title: Improvements in or relating to sliding windows
IPC: B61D25/00
Filed: 1928-09-12
Abstract: 318,011. Peters & Co., Ltd., G. D., and Chattaway, H. A. Sept. 12, 1928. Holders for sliding windows, particularly for vehicles subject to vibration, are arranged so that the weight of the window actuates the holder to prevent creeping movements of the window. The invention is shown in Figs. 1, 2 as applied to a window 1 balanced by a spring drum 4 on which winds the cord 5 passing under pulleys 6 carried by the window, the spindle of the drum having the usual ratchet and pawl 12 to allow adjustment of the spring tension. The drum spindle is mounted in the upturned ends 30 of a frame 31 rackably supported on feet 32 (or alternatively pivotally supported in suitablyplaced bearings) so that the weight of the window acting through the cord 5 normally rocks the drum towards the window and maintains resilent brake pads in contact therewith. The brake pads may be carried by the upturned ends 30 or other part of the frame 31, but, as shown, are in the form of rubber &c. rings 34 on the roller 4. Any suitable number of pads may be provided at intervals along the roller according to the width of the window. The frame 31 may be rocked away from the window to release it by a, handle 35, or in the case of a wide window, the handle may be provided on a rockable shaft parallel with the drum 4 and having depending slotted arms. engaging pins on the frame, the whole forming a lever device for rocking the frame. The rings 34 may be fixed on the drum 4 or may be mounted thereon with free-wheel or like mechanism to allow rotation of the rings in one direction. According to the Provisional Specification the rockable frame may be dispensed with and the drum spindle mounted in inclined bearings slots so that normally the drum rolls down the slots towards the window, but may be moved away therefrom to release it when required.
Patent GB-401856-A (GB)
Title: Improvements in elevator guides
IPC: B66B7/04
Filed: 1932-09-21
Abstract: 401,856. Lift cages. WAYGOODOTIS, Ltd., 54, Fetter Lane, London. Sept. 21, 1932, No. 26225. Convention date, Dec. 5, 1931. [Class 78 (iii).] In an elevator installation the Brinell hardness of the rail-engaging surface of the elevator guide is at least twice that of the metallic rail it engages. As shown, the elevator cage is provided with four guides each comprising a casing 25 which is supported by a member 27 mounted on the cage and houses members 29, 30, 31 which are maintained in engagement with the guide rail 23 by springs 47. Each rail-engaging member comprises a rail-engaging insert 48, Fig. 6, to which is secured a sounddeadening backing 50 of phenol canvas or a substance known under the Registered Trade Mark of " Bakelite ", having ribs 52 provided with channels 53 for the springs 47. The inserts 48 are made of " diamite " or " nitralloy," these being alloys which have Brinell hardness numbers of 650-750 and 950-1100 respectively as compared with 125-150 for the steel rail 23, are resistant to abrasion and retain their hardness irrespective of local heating due to friction. The bases of the channels 53 are curved to permit oscillation of the members 29, 30, 31, on the centre rib about a horizontal axis. The rail-engaging surfaces of the members 29, 30, 31 may be knurled. In a modification, the inserts 48 comprise a number of thin plates maintained edgewise against the surfaces of the rail 23.
Patent GB-406767-A (GB)
Title: A process and apparatus for effecting the electro-deposition of metals
IPC: C25D5/18
Filed: 1932-09-21
Abstract: 406,767. Electrodeposition of metals. ADEY, G. E., The Wreken, Oaklands Road, Totteridge, London. Sept. 21, 1932, No. 26238. Drawings to Specification. [Class 41.] In an electroplating process of the type in which an anode of the metal to be deposited provided with a sheath or pad of absorbent material saturated with electrolyte is passed over the surface to be plated, the anode is connected to a source of interrupted direct current. The current supply is obtained by interruption of a continuous current supply by a rotary switch or an electromagnetic interruptor or by half-wave rectification of an alternating current supply by the use of thermionic valves or otherwise. The supply to be rectified may be drawn from the tapped secondary of a transformer, the primary of which is supplied from a rotary converter adapted to be driven from direct or alternating current mains. A variable resistance is included in the output circuit of the rectifier. The anode may be provided with a bulb or piston reservoir for supplying electrolyte under pressure and a cathode clip for attachment to the work. Several anodes may be connected in parallel for simultaneous use ; the anodes may be of the same or of different metals. The apparatus for the supply of interrupted current may be housed within one cabinet and the plating apparatus such as anodes, brushes, scrapers and vessels for electrolyte and cleaning, polishing and priming solutions in another cabinet, or the whole may be housed within a single cabinet. The unit assembly may be mounted on a trolley. The apparatus may include a rotary mop driven by flexible shafting from the motor driving the generator or by a separate motor. Specification 397,609 is referred to.
Patent GB-1162926-A (GB)
Title: Load cells
IPC: G01L1/22
Filed: 1968-05-31
Abstract: 1,162,926. Load cells. GEORGE KELK Ltd. May 31, 1968 [June 5, 1967], No.26303/68. Heading G1N. In a load cell of the type comprising a ring of I cross-section and having vertical strain gauges (C) disposed on the inner and outer surfaces of the columnar portion, the cross-section of the ring is shaped, as exemplified in Figs. 4, 5 and 6, to compensate for bending moments in the sensing region, thereby providing equal vertical strains at the inner and outer surfaces of the sensing region in response to compressive loading on the flanges. Annular bands 52, 53, which may be corrugated, are welded at their edges to the flanges to provide hermetically sealed annular chambers 61, 62 which are filled with an inert gas. Compensating elements (N) are mounted on an unstrained plate 95 within chamber 61. The load cell may be used to measure the load forces applied to a roll (12) in a rolling mill.
Patent GB-1422185-A (GB)
Title: Polyvinyl alcohol microgels and dry blends for preparing them
IPC: D21H17/14
Filed: 1973-06-01
Abstract: 1422185 Gel-forming polyvinyl alcohol compositions E I DU PONT DE NEMOURS & CO 1 June 1973 [5 June 1972] 26314/73 Heading C3P A dry blend, which when mixed with water, forms a cross-linked gel, comprises (A) a hydroxyl polymer which is (i) a vinyl alcohol polymer containing at least 50 mole per cent of vinyl alcohol units and having a Hoeppler viscosity of 4-150 c.p. or (ii) a mixture of at least 0À5 wt. per cent of a polymer as defined in (i) with one or both of up to 99À5 wt. per cent of a starch and up to 33 wt. per cent of sodium carboxymethyl cellulose; (B) a water-soluble solid titanium salt of a C 2-10  hydroxycarboxylic acid, present inan amount which provides 0À05- 10 parts by wt. of tetravalent titanium ions per 100 parts by wt. of (A); and (C) a water-soluble solid C 2-10  hydroxy carboxylic acid present in an amount of from 0À05-20 parts by wt. per 100 parts by wt. of (A). In aqueous solution the Ti ions cross-link the vinyl alcohol polymer, the efficiency of said cross-linking being enhanced by the presence of component (C). In the examples various polyvinyl alcohols, including a vinyl alcohol methylmethacrylate copolymer are compounded with titanium citrate and citric acid, or tetraisopropyl titanate and lactic acid. The latter mixture results in the in situ formation of a mixture of lactic acid and titanium lactate. Other hydroxy acids for use in forming the salt (B) or for use as component (C) are tartaric acidand salicylic acid. The resulting gels are used for size-coating paper.
Patent GB-1214138-A (GB)
Title: Improvements in buildings incorporating ventilating ducts
Inventor: BLANKS BRIAN GEORGE HENRY
IPC: F24F7/04
Filed: 1967-06-07
Abstract: 1,214,138. Partitioned ducts for ventilating buildings. SUPERVENTS Ltd. 25 July, 1968 [7 June, 1967], No. 26316/67. Heading F2P. [Also in Division F4] A building incorporates a composite ventilating duct 1 which comprises a main duct 3 and a shunt duct 4 within a common enclosure 1 of substantially rectangular, or square, cross-section and a division plate 2 which separates the main and shunt ducts 3, 4, and is set at an angle other than a right angle to the wall, or walls, of the common enclosure 1, the shunt ducts having one, or more, room ducts 5 connected thereto. The enclosure may be partitioned to provide a plurality of main and shunt ducts, the ducts being made of sheet metal, synthetic plastics, asbestos cement, concrete, or other suitable material. When made of synthetic plastics the ducts can be extruded, and moulded when made of asbestos cement, concrete, &c. Connections 5 of room ducts to the shunt ducts is made to either of two walls which combine with the partition 2 to form the shunt duct. When used to extend vertically in a multistorey building an airway opening is formed in the partition 2 at a height above the connection 5 approximating to the height of one storey of the building and the shunt ducts 4, 4a are closed by horizontal dividing plates immediately above such openings.