baber/WOPTO huggingface dataset:
Patent GB-1534585-A (GB)
Title: Belt-type sander attachment for portable power drills
IPC: B24B23/06
Filed: 1976-06-21
Abstract: 1534585 Grinding R MARTIN 21 June 1976 [21 Nov 1975] 25624/76 Heading B3D A sander attachment 20 drivable by a portable power drill 46 having a chuck 44 comprises an open-bottom body member 22, first and second rollers 24, 26 mounted in the member around which an endless sandpaper belt 34 is looped, the first roller having a driving axle 40 extending outwardly from the body member for engagement by the chuck 44, and a bearing plate 28 attached to the body member and having a bearing surface for the belt directed outwardly from the body member and positioned intermediate the rollers. The first roller 24 is secured to the axle 40 which is supported in bearings 42 in side walls of the elongate body member 22, the axle being at such a height from the plane of bearing surface of the plate 28 that, when the sanding belt moving over the bearing surface engages the plane 48 of a workpiece and the chuck 44 of the drill 46 is gripping the axle, the housing 50 of the drill is spaced from the plane 48. The second roller 26 is mounted on bearings 62 on an axle 64 having, at one end, an offset rectangular plate 110 received in a square opening 118 in a housing 116 on one side of the body member whereby the plate can be orientated in one of two positions to vary the spacing between the rollers for adjusting the tension in the sandpaper belt. The other end of the axle extends through a slot in the side 66 of the body member into an L-shaped member 120 adjustable along guides 126 by a screw 122 having a knob 124 for fine adjustment of the tension and tracking of the belt. The bearing plate 28 extends across the bottom of the body member and a layer of heat insulating material 109, such as cork, may be positioned between the plate and body member. The side 66 of the body member is retained thereon by screws 68 and may be removed for removing and replacing of the sandpaper belt and to permit the first roller to be reversed endfor-end so that the axle 40 extends from the other side of the body member and so that the attachment can be used by right or left handed operators. A handle 80 can be fitted into one or other of a number of openings 84 to suit the hand of the operator. A pair of skirts 100, 102 are adjustably mounted on the body member to prevent gouging of the belt into the workpiece. Lugs 130, 132 on the body member permit the attachment to be secured in an inverted or vertical position on a worktable, a guide member 136 for a workpiece being adjustable about a hinge 139 by an arcuate support 140.
Patent GB-867625-A (GB)
Title: Improvements in counter e.m.f. cells
IPC: H01M10/26
Filed: 1959-07-27
Abstract: 867,625. Batteries. ELECTRIC STORAGE BATTERY CO. July 27, 1959 [Oct, 13, 1958], No. 25643/59. Class 53. The electrolyte of a counter E.M.F. cell consists of one to ten molar per cent of an iodide in an alkaline solution. The iodide may be the iodide of sodium, potassium, magnesium or lithium, and the solution a solution of sodium or potassium hydroxide, The electrodes may consist of sheet or sintered nickel or stainless steel. In an example the electrolyte consists of 100 grams of potassium hydroxide and 100 grams of potassium iodide dissolved in 400 grams of water, which corresponds to a molar percentage composition of 2.5 potassium iodide, 7.3 of potassium hydroxide and 90.2 of water. Specification 825,667 is referred to.
Patent GB-1194076-A (GB)
Title: Open-Throated Connecting Devices
Inventor: GOWER ROGER LEROY
IPC: F16B45/04
Filed: 1968-05-29
Abstract: 1,194,076. Hooks. R. L. GOWER. 29 May, 1968 [15 June, 1967], No. 25652/68. Heading E2A. In an open-throated connecting device 10, closure of the throat is effected by an elongate pin 13 accommodated in a bore 11 through the device at one side of the throat, so as to extend across the throat, the pin being longitudinally ridged or formed as a rolled member subject to radial compression within the bore 11 whereby the pin engages frictionally with the wall of the bore to resist loosening or retraction.
Patent GB-851454-A (GB)
Title: Improvements in or relating to the production of iron ore
Inventor: WILLS JOHN RICHARD
IPC: B03B5/38
Filed: 1957-08-14
Abstract: 851,454. Washing granular materials. FERRERSAND AGGREGATES Ltd. July 28, 1958 [Aug. 14, 1957], No. 25714/57. Class 82(2) A sink and float separation process using a separating medium of intermediate specific gravity which is recycled, is applied to an iron ore-gravel mixture, the bulk of which has a size between # and 4 inches, and which contains a major proportion of flint and iron ore and a minor proportion of quartz and/or quartzite, sandstone and/ or gritstone and limestone, at least 10% of the mixture being iron ore and at least 25% of the iron as an oxide. An aqueous suspension of ferro silicon with a specific gravity between 2.70 and 3.40 is used for separating the washed mixture in cone 2, the iron ore sinks being removed by an airlift 4 and the floats overflowing weir 3. The sinks and floats are separately drained and washed on vibrating screens 5 and 6 and the separating medium is pumped back to cone 2. The separating medium and fines from screen 6 are passed through a magnetic separator and the separating medium is then reconstituted in a cyclone for recycling to cone 2.
Patent GB-924256-A (GB)
Title: Cyclopentane derivatives and a process for the manufacture thereof
Filed: 1960-10-19
Abstract: The invention comprises 1-carboxy-4-keto-1.2.2-trimethyl-cyclopentane and its ketals. These compounds may be obtained by heating 4-carboxy-4.5.5- trimethylcyclohexanedione-(1.2) under reflux with dilute potassium hydroxide until the light absorption at 312 mm  has disappeared, treating the resulting 1.4-dicarboxy-4-hydroxy- 1.2.2-trimethyl-cyclopentane successively with phosphoric acid and sodium bismuthate and, if required, ketalizing the resulting 1-carboxy-4-keto-1.2.2-trimethyl-cyclopentane.  The 4-carboxy-4.5.5-trimethyl-cyclohexanedione-(1.2) used as starting material may be obtained by reacting in benzene solution 4-ethoxycarbonyl-4.5.5-trimethylcyclohexanedione-(1.3) with ethanol in the presence of toluene-p-toluene sulphonic acid, reducing the resulting 4-ethoxycarbonyl- 1-ethoxy- 4.5.5- trimethyl-cyclohexen-(1)-one-(3) with lithium aluminium hydride to give after hydrolysis 4-hydroxymethyl-4.5.5-trimethyl -cyclohexene- (2)-one, catalytically hydrogenating the latter, oxidising the resulting cyclohexanone compound with Cr2O3 in the presence of acid and finally oxidising the resulting 4-carboxy-4.5.5.-trimethyl-cyclohexanone with oxygen in the presence of potassium tert. butoxide.  Specification 924,257 also is referred to.
Patent GB-857114-A (GB)
Title: Improvements in or relating to 16-substituted steroid compounds
Inventor: KIRK DAVID NEVILLE
IPC: C07J7/00
Filed: 1958-08-11
Abstract: The invention comprises: (a) 17a -hydroxy-16-methylenepregn-4-ene-3 : 30-dione; (b) acyl derivatives of compound (a), of the general formula:  <FORM:0857114/IV(b)/1> wherein R represents an acyl group of up to 10 carbon atoms ; (c) 16-methyl-16a  : 17a -epoxypregn-4-ene-3 : 20-dione; (d) the preparation of compound (a) by reacting 16-methylpregn-4:16 -diene-3 : 20-dione with alkaline hydrogen peroxide to give compound (c) and treating this with a hydrogen halide and then with Raney nickel in an organic solvent ; and (e) the preparation of compounds (b) by acylation of the product of (d).  Compound (a) can also be obtained by treating compound (c) with sulphuric acid in dioxan, and is useful as a starting material for preparing 16-methyl-9a -fluoroprednisolone (e.g. by a process involving hydrogenation to the 16-methyl compound, introduction of an 11a -hydroxy group with the aid of Rhizopus nigricams, introduction of a 21-iodo substituent by the action of iodine/calcium oxide, replacement of the iodine atom by an acetoxy group, and conversion of the 11a -hydroxy system to the 9a -fluoro-11b -hydroxy system by known methods).  Compounds (b) are useful as progestational agents (see Group VI).  The reaction with H2O2 is advantageously conducted in a water-miscible organic solvent at temperatures between 0 DEG  C. and 100 DEG  C., and the treatment of the epoxide may be effected with hydrogen bromide in an aliphatic acid and an inert organic solvent or with aqueous hydrogen iodide in a watermiscible organic solvent.  The treatment with Raney nickel is desirably performed in ethanol.  Acylation of compound (a) may be performed, for example, with an acid anhydride such as acetic or caproic anhydride and a catalytic quantity of toluene-p-sulphonic acid. Examples are given.ALSO:Pharmaceutical compositions comprise a steroid of the general formula:  <FORM:0857114/VI/1> (wherein R is an acyl group of up to 10 carbon atoms) in admixture with a pharmaceutical carrier. They may take the form of tablets, powders, capsules, pills, solutions, emulsions, suspensions, syrups or elixirs.  Tablets containing the acetyl derivative of 17a -hydroxy-16-methyl enepregn-4-ere-3:20-dione, are described.
Patent GB-666822-A (GB)
Title: Electromagnetic-wave-transmissive structures
IPC: H01Q1/28
Filed: 1949-10-07
Abstract: 666,822. Aerials. PHILCO CORPORATION. Oct. 7, 1949 [Oct. 8, 1948], No. 25797/49. Class 40 (vii). An electromagnetic-wave-transmission strueture for enclosing a radio antenna is constructed of a series of parallel, spaced, conductive plates with the spaces between the plates filled with a dielectric material, the spacing between the plates being selected in relation to the dielectric constant of the filling material to ensure the phase velocity of the radio wave remains substantially unchanged in traversing the structure. A beam incident upon the parallel plate structure and polarized parallel to the plates is transmitted through the structure with no change in direction and only a slight parallel displacement due to the thickness of the structure. Polystyrene, polyethylene, glass, steatite, and liquid and gaseous dielectrics are referred to as suitable filling materials. Where the wave polarization cannot be maintained parallel to the plates, a cellular construction involving two sets of plates at right angles is employed, Fig. 2 (not shown). An embodiment in the form of a window for enclosing a radar scanning antenna mounted in the wing of an aircraft is shown in Fig. 3. The front edge of the wing is constructed with a series of parallel plates 23 shaped to follow the contour of the aerofoil and slabs 24 of dielectric material are interposed between the plates. The antenna 32 is an end-fire array fixed at one end 36 and carried at the other end in a slot 35 in a rotatable disc 34. R.F. energy is conveyed through hollow shaft 33 and coupled to the antenna by flexible coaxial transmission line 37 and rotatable joint 58. Motors and cam arrangements impart a rotational motion to shaft 33 and a radially reciprocating motion to the end of antenna 32 within slot 35. A second embodiment, Fig. 4 (not shown), is a sharplypointed enclosure forming the nose of a guided missile within which is located a radar antenna.
Patent GB-908307-A (GB)
Title: Improvements in aircraft propulsion power plants
Inventor: HOOKER STANLEY GEORGE
IPC: B64C29/00
Filed: 1960-07-25
Abstract: 908,307. Jet propulsion plant. BRISTOL SIDDELEY ENGINES Ltd. July 25, 1961 [July 25, 1960], No. 25817/60. Class 110 (3). [Also in Group XXXIII] An aircraft propulsion power plant comprises a gas turbine engine 1, a jet pipe 20 connected to receive the turbine effluent and having a straight end part including a reheat combustor 47 and a jet nozzle 51, a duct branching from the jet pipe upstream of the reheat combustor, and a valve system upstream of the reheat combustor for distributing the turbine effluent between nozzle 51 and the branch duct. In the Figure, the branch duct leads to a nozzle 30, but may instead feed a free turbine driving a lifting fan. The nozzle 51 is of variable area, and comprises a ring of overlapping flaps 52 pivoted at 53 to a convergent end part of the jet pipe and carrying cam follower rollers 54 held in engagement with a frusto-conical cam surface 55 on sleeve 56 by the pressure of the gas stream. The sleeve is slidable by jacks 57 to vary the outlet area defined by the flaps. A fixed divergent section 58 is operative when the flaps are expanded to the diameter of its entry, as in Specification 820,059. Specifications 825,547 and 826,963 also are referred to.
Patent GB-637554-A (GB)
Title: Laminated electric rotors and a method for finishing the outer cylindrical surfaces thereof
IPC: H02K15/02
Filed: 1947-09-23
Abstract: 637,554. Milling machines; making electric rotors. NATIONAL BROACH & MACHINE CO. Sept. 23, 1947, No. 25831. Convention date, Oct. 14, 1946. [Classes 83 (ii) and 83 (iii)] An electric rotor 20 comprises a laminated core of which the outer cylindrical surface is finished by shaving with a rotating milling cutter 22 while the rotor is being rotated. The cutter and rotor are in crossed-axes relationship and are relatively traversed so as to distribute the area of contact therebetween from one-end of the rotor to the other ; the crossed axes angle A lies between 5 and 30 degrees. The direction of traverse is preferably inclined to both the axis 21 of the rotor and the axis 23 of the cutter, so that the whole cutting surface of the cutter comes into play ; as shown in Fig. 2, the point of engagement of the cutter and rotor will move from 25 to 26 during traverse of the rotor 20 from the full-line position to the dotted-line position 20<SP>1</SP>, in the direction of the arrow 24. The cutter and work-piece are rotated to give a peripheral speed of about 400-600 feet per minute and 20-60 feet per minute respectively, resulting in a total relative surface speed of about 500 feet per minute. Also, the rotor speed is related to the cutter speed so that the peripheral movement of the rotor is 0.02-0.03 inches during the movement of the cutter teeth through one pitch. The cutter has helical teeth and is set so that the engaged teeth make a greater angle with the axis of the rotor than does the axis of the cutter. A machine for carrying out the method comprises a cutter 37, which is rotated about a horizontal axis by a motor 33 and is adjustable about a vertical axis, a headstock 43 driven by a motor 44, and a tail stock 42. The stocks are carried on a support which is adjustable about a vertical axis on arcuate ways on a slide 32 arranged to be traversed horizontally on a vertically-adjustable table 31. The rotor is finished in a single pass and may be replaced either after extended traverse beyond the end of the cutting traverse in either direction or between automatic lowering and raising of the table 31 at the beginning and end of each traverse. Specifications 415,875 and 513,677 are referred to.
Patent GB-1173360-A (GB)
Title: Improvements in temperature sensor probe
IPC: G01K1/14
Filed: 1967-06-05
Abstract: 1,173,360. Thermometers. GENERAL ELECTRIC CO. June 5, 1967 [Sept.6, 1966], No.25832/67. Heading G1D. [Also in Division H1] A probe for insertion in a hot gas stream comprises a hollow, elongated, relatively stiff structural core 22 having a free end extending into said gas stream and the core having a greater wall thickness on its upstream portion than at its downstream portion and a loose fitting thin-walled sheath 32 having a stream-lined cross-section extending 34 to or beyond the free end of the core to form a clearance 34 therebetween in which stagnant gas is trapped to form a thermal barrier between said sheath and said structural core for minimizing the heat transferred to said core and substantially reducing the temperature gradient therein, whereby the deflection of the probe due to thermal expansion is greatly minimized. The structural core 22 is mounted on a base 14 secured to the confining wall 12 of the gas stream. The core has a longitudinal chamber formed by overlapping holes plugged at one end by flatted pins 26, 27. The leading edge of the core has a series of longitudinal grooves for receiving the thermocouple elements 41, 44. The sheath 32 is provided with an inlet opening 35 and outlet holes 36. In operation the hot gas flows around the sheath 32 and through the chamber 34. The gases entering the inlet 35 impinge upon the thermocouple junctions 43, 46.
Patent GB-1443581-A (GB)
Title: Polyolefin fibre composition and process for its preparation
IPC: D21H/
Filed: 1974-06-11
Abstract: 1443581 Paper-making composition HOECHST AG 11 June 1974 [12 June 1973] 25849/74 Heading C3P [Also in Division D2] Polyolefin fibres are interacted with polyvinyl alcohol and an aldehyde carboxylic acid of formula where n is 0, 1, 2, 3 or 4 or a hydrate thereof. The mixture can be made by pro-reacting the polyvinyl alcohol and the aldehyde carboxylic acid or by adding the polyvinyl alcohol to the fibres and reacting in situ.
Patent GB-710256-A (GB)
Title: Improvements relating to the separation of gas from crude oil
IPC: C10G7/00
Filed: 1950-10-24
Abstract: <PICT:0710256/III/1> Gas is separated from crude oil emanating from high-pressure wells by passing the oil through two or more separators operating at different pressures and passing gas from a low-pressure separator to a distillation column, the reflux cooling of which is effected by a cooled gas obtained by passing gas from a high-pressure separator through an expansion engine, and the reboiler heating of which is effected by hot gas or liquid obtained by compressing the gas from the low-pressure stage by means of power obtained from the expansion - engine.  Crude oil is fed successively to three separators 2, 3 and 4 operating respectively at 850 p.s.i.g., 85 p.s.i.g. and atmospheric pressure.  Gas from separator 2 is cooled in a heat-exchanger 5 and flows to a separator 6, gas from which is expanded to 85 p.s.i.g. in an expansion-engine 7 which drives a compressor 8 which in turn compresses gas from the separator 4 to 120 p.s.i.g.  The compressed gas provides heat for a reboiler 10 of a fractionating column 9, is further cooled in a heat-exchanger 11 and flows into the fractionating column 9, the bottoms from which join the oil from vessel 4.  The overheads from the column 9 are cooled in a heat-exchanger 12 fed with gas at -180 DEG F. from the expansion-engine 7, are further cooled in a heat-exchanger 13 in which liquid from the separator 6 is allowed to boil at 200 p.s.i.g., and flow to separator 14, the liquid from which is returned as reflux to the column 9.  Liquid from the vessel 13 is supplied as additional feed to the column 9 and unwanted gas from the vessels 13 and 14 may be mixed with cool gas from the expansion-engine 7 and used as cooling medium in the heat-exchanger 5.
Patent GB-263254-A (GB)
Title: Improvements in electric cooking stoves and the like
IPC: H05B3/68
Filed: 1925-10-16
Abstract: 263,254. Jackson Electric Stove Co., Ltd., and Smith, F. Oct. 16, 1925. Electric hot-plates. - Relates to heating elements for cooking stoves wherein the resistance element d<2> is carried by a plurality of notched supports c is removably mounted in a flanged tray or reflector b and threaded on securing rods e. The notches or slots c<1> are inclined and provided with front and rear projections, the resistance being held in position by refractory rods f passing along the slots. The flanges of the tray may be notched at b<2> to take the bars c, the rods e passing through turned over portions b<1> of the flanges. End bars c<2> with terminals c' and upstanding projections c<3> may be provided to prevent displacement of the resistance wire due to expansion. A flanged nickel plate a may be supported on the bars c or on the reflector. An additional fireclay backing or metal reflector may be provided or the tray b may be made of fireclay. A common reflector may be provided for a plurality of elements.
Patent GB-1119692-A (GB)
Title: Improvements relating to load-carrying vehicles
Inventor: HOLT JOHN BRIGGS
IPC: B60P1/44
Filed: 1964-06-23
Abstract: 1,119,692. Arrangement of vehicle seats. NATIONAL RESEARCH DEVELOPMENT CORP. 22 Sept., 1965 [23 June, 1964], No. 25981/64. Heading B7J. [Also in Division B8] A drivers console 80 is pivotally mounted at 81 on an arm 82 fixed to a post 83 and can be swung from the driving position 84 through an intermediate position 86 to a loading control position adjacent loading forks 15. To keep the console facing the centre line of the vehicle a chain 89 extends between anchorages 88 round a sprocket 87 so that as the arm 82 turns the console is turned about its pivot 81.
Patent GB-208783-A (GB)
Title: Improvements in and relating to the manufacture of chains
IPC: B21L5/00
Filed: 1922-09-26
Abstract: 208,783. Cowles, W. B. Sept. 26, 1922. Grant of Patent refused. Chains; shackles.-A length of chain cable is made from a single billet, by rolling the billet to a cruciform cross section A, Fig. 1, passing this bar while hot between die-rolls B-B<3> to form links having internal webs a', Fig. 2, external fins a<3> and integral studs a<2>, annealing the bar, then trimming and separating the links by dies and punches. The exterior fin and the majority of the internal webbing of each link are trimmed simultaneously by dies CC<1> DD<1>, Fig. 2<a>, and the links are then separated with the exception of small fillets a<o>, by punches E, E<1>. The fillets a<o> are removed in a subsequent operation and the internal surface of the link is then machined. The link is strengthened by thickening the ends in a direction perpendicular to the plane of the link. The various lengths of cable may be coupled by standard shackles and for this purpose the stud of an end link is removed either mechanically or by an oxy-acetylene torch, the stud being welded back into place after the shackle has been inserted. Specification 208,784, [Class 83 (iv), Metals, Working], is referred to.
Patent GB-635977-A (GB)
Title: Improvements relating to the control of electro-pneumatic triple valves
IPC: B60T13/66
Filed: 1946-08-30
Abstract: 635,977. Electric switches. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. Aug. 30, 1946, No. 26189. Convention date, Jan. 10, 1944. [Class 38 (v)] [Also in Group XXXIV] An electro-pneumatic brake system (see Group XXXIV) comprises in one form, Fig. 2, a switch 7 which is arranged to be opened by a projection 13 on the common rod 12 of a pair of pistons 10, 11. When the driver's brake valve is operated the cylinder 8 of the piston 10 is connected to a source of fluid-pressure, and the cylinder 9 of the piston 11 is vented to atmosphere through a restricted passage 23 so that the pistons and rod move downwardly to effect opening of the switch after a predetermined time interval. In a second form, Fig. 4, a contact ring 30 is mounted on an insulating bush on the shaft 33 of the driver's brake valve, and is rotatable by a member 32 formed with a recess 55 in which is located a driving dog 34 on the shaft. The ring 30 is formed with a recess 45, and is engaged by contacts 44, 441 which replace the switch 7 previously referred to. The member 32 carries a spring-loaded ball 37 adapted to engage in one or other of notches 39, 40 and 41. When the driver's valve handle is moved from position D to position S (see Fig. 5, not shown), the ring 30 is not moved until the dog 34 engages the surface 36, the handle then being in position N. The further movement of the handle to position S forces the ball out of notch 39 and moves it to a position midway between the notches 39 and 40, the contact 441 then being engaged with the edge of recess 45, and the spring then forces the ball into the notch 40 carrying with it the ring 30 so that the contact 44<SP>1</SP> is moved into the recess 45 and the circuit broken after a predetermined time interval.