baber/WOPTO huggingface dataset:
Patent GB-550257-A (GB)
Title: Improvements in variable pitch propellers, fan blades and the like
IPC: B64C11/34
Filed: 1941-07-09
Abstract: 550,257. Variable-pitch airscrews and fans. PARFITT, A. W. (Everel Propeller Corporation). July 9, 1941, No. 8646. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 4, 1941.] [Class 114] The blades 1 of a screw or fan are each mounted in a flanged sleeve 3 supported by ball bearings 19a within a radial recess in the hub 2, the axis of the blade being inclined to that of the recess. The sleeve has a flexible slit cuff or extension 3D, clamped about the blade. A thrust bearing comprises a ball 14 between a conical recess in the shank portion of the blade and a retainer 15, the ball contacting with a screwed post 17 to prevent looseness. The hub may be bored for lightness and the bores may contain balance weights or plugs 7. The bearings 19a are held in place by a nut 21 grooved to hold an oil retaining chevron packing 22. The pitch is varied by the centrifugal forces on the blade; supplementary varying devices may be employed.
Patent GB-219366-A (GB)
Title: Improvements relating to the docking of vessels on slip-ways
IPC: B63B9/00
Filed: 1923-03-27
Abstract: 219,366. Glover, W. G. March 27, 1923. Slips; bilge and keel blocks. -The bilge and keel blocks on a slip-way are operated collectivelv by fluid pressure actuated by the power used to haul the vessel up the slipway. Accumulators or compressors for compressing the fluid operating the blocks may be carried on the cradle and provided with means whereby the haulage cable can be connected to the compressors so as to operate the blocks. In the example shown in Figs. 1 and 2, the cradle 1, mounted on wheels 2, is provided with hydraulically operated bilge and keel blocks 3. Secured to the cradle are the cylinders 4, 4 of the compressors, the rams 5, 5 of which are connected by rods 14, 14 and links 15, 15 to a cross-head 7 in which is mounted the pulley 12 around which the haulage cable. 13 passes. A yoke 16 is secured to the forward end of the cradle, and the cross-head 7 is detachably coupled to the yoke by arms 21, 21, pivoted to the crosshead 7 by spindles 22, 22, and having claws 23, 23 which engage with the flanged forward end of the yoke 6. To the spindles 22 are keyed levers 24, 24, the free ends of which engage in cam grooves 25, 25 formed in a slide block 26 carried on the cross-head. The slide block can be moved by means of a link 29, a bell-crank lever 31, and a trip-line 34 so as to disengage the claws 23 from the yoke 6. Each cylinder 4 is provided with a delivery pipe 4<a> leading to a main supply pipe 4<c>, from which branches lead to the bilge or keel blocks. The rams 5 being in the withdrawn position as shown in Fig. 2, and the claws 23 engaged with the yoke 6, the cradle is hauled up the slip-way until it becomes necessary to support the vessel on the blocks 3. The trip line 34 is then operated, releasing the yoke 6, End the pull on the cable 13 is then transmit :ed through the link 15 and rods 14 to the rams 5, so raising the blocks into contact with the vessel. The rams 5 continue to move inward until stops 20, 20 on the rods 14 abut against the flange of the yoke 6, when the pull is again applied directly to the cradle. An escape valve 4d is set to function at such a pressure that it comes into action shortly before the stop 20 come into contact with the yoke 6, so obviating shock. The bilge or keel blocks may be interconnected in such a manner that they operate simultaneously or in groups.
Patent GB-963593-A (GB)
Title: Improvements in strain gauges
IPC: G01L1/22
Filed: 1961-03-09
Abstract: 963,593. Measuring force electrically. VICKERS-ARMSTRONGS (AIRCRAFT) Ltd., and H. JEFFREE. March 8, 1962 [March 9, 1961], No. 8713/61. Headings G1N and G1W. A strain gauge comprises levers A, B, rotatable about a common pivot C to which the load to be measured is to be applied along line XY, and a spring or springs M tending to rotate the levers and so applying an initial tension to links D, F, J, H, or S and T, which constitute the arms of a Wheatstone bridge, which are parallel to the direction of the load to be measured and which connect the opposite arms of each lever to fixed anchorages E, G. In Fig. 1, the links F, J are connected to the anchorage G through a compensating bar K. In Fig. 3, the levers are connected to the links S, T through yokes N, Q, which respectively span ends A3 and B4, and A4 and B3 of levers A and B, and compensating bars NB, QB, Fig. 4 (not shown). Fig. 5 shows the electric circuits associated with the arrangement of Fig. 3 and embodying trimmer resistors TR1, TR2.
Patent GB-541216-A (GB)
Title: Improvements in or relating to the pressing of shoe bottoms
IPC: A43D25/06
Filed: 1940-05-16
Abstract: 541,216. Sole-laying machines BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). May 16, 1940, No. 8728. [Class 17 (i)] Machines of the kind described in Specification 408,953 and particularly intended for laying a short outsole the rear portion of which is inserted in a transverse groove in a slot adjacent the upper edge of the breast of a heel, as described in Specification 501,057, are provided with improved gauging mechanism. The rear end of the sole is positioned by a plate-like member having thereon a device for engaging a recess or opening in the sole and an arrangement for preventing contact between the rear end portion of the outsole and the shoe bottom. Near its forward end the gauge may be provided with a downwardly extending prick punch point 32, a concentric opening 34 facilitating the use of the gauge by exposing the projection. In a modification, a notch cut in the end of the sole is engaged by a pin 52 entering a hole in a laterally curved upper plate 56. A pair of upstanding prongs 54 spaced apart enter the sole as soon as pressure is exerted on the work. In another modification a pair of spaced rectangular notches is formed in the sole, and the gauge is correspondingly formed.
Patent GB-767478-A (GB)
Title: Improvements in or relating to off set printing machines
IPC: B41F13/28
Filed: 1955-03-25
Abstract: 767,478. Printing machines. FABER & SCHLEICHER AKT.-GES. March 25, 1955 [April 3, 1954], No. 8770/55. Class 100(2) The offset cylinder 3 of an offset printing machine is mounted in eccentric bearing bushes 4 which are controlled so that the cylinder may be moved in two stages, first into contact with the plate cylinder 2 and then after a suitable number of revolutions, into contact with the impression cylinder 1 for printing. This makes is possible to build up a well inked image on the offset cylinder before printing begins so that defective first prints are avoided. An arm on the bush 4 is connected by a link 13 to a lever 12 pivoted at 11 and carrying a twoarmed pawl 15. Also pivoted at 11 is a cam follower lever 10, a roller 9 on which engages in a cam track 8 in a disc 7 geared to rotate in unison with the cylinders 1, 2, 3. Abutments 16, 17 and 18 on lever 10 are adapted to be engaged selectively by the pawl 15 and to displace the bush 4 to the various alternative positions. In Fig. 1, the pawl 15 has engaged the lower abutment 16 so that in its clockwise movement, the lever 12 has also been moved clockwise thereby rotating the bush 4 so that the offset cylinder is out of contact with both plate and impression cylinders 1, 2. While the pawl is in this position the offset cylinder will remain tripped. If the pawl is rotated so that its upper edge is engaged by the abutment 18, as shown in Fig. 3 the next anticlockwise rotation of lever 10 displaces lever 12 and bush 4 so that offset cylinder 3 engages plate cylinder 1. The offset cylinder may remain in this position until a well-inked image is built up on the blanket thereof. When the pawl is turned further so as to engage the abutment 17, the lever 12 is displaced further in the next anticlockwise movement of the lever 10 and the bush 4 rotated to move the offset cylinder into printing engagement with the impression cylinder. Pawl moving mechanism is provided, comprising hand lever 103 an rod 105.
Patent GB-1260643-A (GB)
Title: Process for the preparation of quaternary ammonium compounds
IPC: C07C209/12
Filed: 1970-02-24
Abstract: 1,260,643. Quaternary ammonium chloride. FARBWERKE HOECHST A.G. 24 Feb., 1970 [25 Feb., 1969], No. 8795/70. Heading C2C. A process for the preparation of a quaternary ammonium chloride having the general formula: wherein R<SP>1</SP> is a C 8 -C 22  aliphatic group, R<SP>2</SP> is a C 1 -C 22  aliphatic group, and a is 0 or 1, comprises continuously reacting an amine of the formula with methyl chloride and (2-a) moles of an alkali metal hydroxide per mol of amine at a temperature of from 50 to 90 C. in a reaction medium comprising the final product and a low boiling alcohol whilst maintaining a methyl chloride partial pressure of from 3 to 10 atmospheres gauge. The amines used in the examples are distearylamine, di(tallow fatty acid) amine, di- (coconut oil) amine, primary soybean oil amine and a #-branched pentadecylamine.
Patent GB-351019-A (GB)
Title: Improvements in or relating to apparatus for delivering coal or like material to bunkers and other receptacles associated with locomotive coaling plant
IPC: B65G67/00
Filed: 1930-03-19
Abstract: 351,019. Hoists with guided skips and carriers. MITCHELL, F. G., Albyns, near Romford, Essex. March 19, 1930, No. 8837. [Classes 78 (iii) and 78 (iv).] A locomotive coaling plant of the kind having a wagon-raising and tipping hoist for charging a skip which when lowered automatically discharges, is provided with guiding means for the skip which tip the skip sidewise towards the wagon and with skip-righting means moved by the wagon to gradually return the skip while being loaded to a vertical position. The skip doors are controlled by toggle linkage acted on by a retaining weight. The wagon 11 rests on a carrier 10 mounted in guides 13 which are bifurcated at their upper end to form tipping guides 13c, 13x. Levers 18 pivoted to the carrier are connected by hoisting ropes 19 passing over hoisting drums 5 to balance weights 9. The skip 22 is mounted in guides 20 having concentrically curved upper ends 20a, the skip-hoisting rope 25 passing over a brake drum 6 to a balance weight 26. The skip-righting means comprise levers 27 connected by ropes 28 passing over sheaves 29 to balance weights 30 and pivoted to the bunker 2 coaxially with the curved guides 13x. The levers carry check-plates 31 with wagon retaining beams 32 adapted to bear against the top of the wagon. As the wagon tips it bears against the beam and turns the levers 27 downwards, the levers depressing the projecting ends of pins 22a on the skip causing the skip to gradually assume a vertical position, Fig. 9, as the wagon empties. The skip controlled by the brake drum descends and discharges into the bunker. The skip 22, Fig. 3, has side discharge doors 34 connected by links 36 to crank arms 38 on a spindle carrying a weighted two-armed lever 41 connected by a chain 42 to a hanging weight 43. When the weight 43 rests on the bottom of the bunker, the weighted lever 41 breaks the toggle linkage 36 and the doors open. In a modification, the lower part of the skip guideway is bifurcated, a junction switch being provided, so that the skip can discharge at either side of the bunker.
Patent GB-703009-A (GB)
Title: Chain hoist
Inventor: ROBINS ERFORD ELMER
IPC: B66D3/26
Filed: 1951-04-16
Abstract: 703,009. Chain hoists. COLUMBUS McKINNON CHAIN CORPORATION. April 16, 1951. No. 8850/51. Class 78 (5) Load chain wheel 22 is formed with flats 35, to receive the flat-wise links of the load chain and cut-away portions 38 for the edgewise links, there being rounded abutments 40 formed on said' flats 35 for erigagement with the flatwise links. Hand chain 26 drives chain wheel 22 through shaft 14, and gears 17 18, the load chain co-operating with chain guide 28 secured to the hoist.
Patent GB-553937-A (GB)
Title: Improvements in jointed wood structures for use in the joinery trade and in other wood trades
IPC: E04B2/70
Filed: 1942-06-29
Abstract: 553,937. Composite wood blocks. BROWNE, A. J. June 29, 1942, No. 8948. [Class 145 (ii)] A wood structure for use in the joinery and other wood trades is constructed without screws, nails or glue from small pieces of wood jointed together to any length, width or radius, each piece having, as shown, a tongue on one side and a groove on the opposite side and a dovetail recess in the base so formed that a half-dovetail projection is left at each end of that base. The structure can be readily disassembled and reassembled. Tabular structures may be thus made. The tongues and dovetails may be interchanged.
Patent GB-293341-A (GB)
Title: Improvements in or relating to the preservation of fruits, vegetables and the like
IPC: A23B7/153
Filed: 1927-04-04
Abstract: 293,341. Zellner, H. G. April 4, 1927. Drawings to Specification. Antiseptics.-A washing solution for treating fruit and vegetables contains an alkaline hydroxide, preferably sodium hydroxide, with small amounts of copper sulphate and potassium permanganate. After rinsing with water a final solution containing an alkaline hydroxide, e.g. sodium hydroxide, and sodium pentasulphide is applied to prevent attack bv moulds &c. In the example given the final solution contains also sodium carbonate and bicarbonate, copper sulphate, and potassium permanganate.
Patent GB-253077-A (GB)
IPC: C14B5/00
Filed: 1926-04-07
Abstract: 253,077. Reece Shoe Machinery Co., (Assignees of Oliver, J. R.). June 2, 1925, [Convention date]. Retractive switches; latching and unlatching. -In a press for dieing out leather &c. an electromagnet 35 co-operates with a fixed arcuate armature 41. Duplicate control switches operated either from a hand lever or from a pedal 52 comprise a stationary bush with contacts 79, 80, 81 connected to a rheostat a<2> and to supply wires a, b, and two rotatably and axially movable conducting rings 90, 88 with brushes 82, 83 connected to the magnet. Rotation of the rings is effected by a rack or a crank from the operating means, a pin on a disc 86 engaging a stationary cam to throw the rings axially into effective position against spring pressure, and a latch holding the rings displaced until the restoring movement. On depression of the handle, circuit is made through the circuit A, a, 79, 82, magnet, 83, 80, B, and the press is actuated. Partial release of the handle turns the rings to the position shown in Fig. 10, and circuit is made through A, rheostat a<2>, 81, 83, magnet 82, 80, B, whereby a decreased and reversed current flows through and denergizes it. The catch is then released and the parts are restored.
Patent GB-566828-A (GB)
Title: Improvements in or relating to the production of dried potato
IPC: A23L19/15
Filed: 1943-06-08
Abstract: In the preparation of dry mashed potato, which can be reconstituted by the addition of hot water, diluted mashed potato is passed through a fine sieve before drying, the cooking, mashing, sieving and drying being effected by means which do not damage the cells.  The potatoes are cooked by steam or in water, or milk and water.  Dilution is effected, before or after mashing, with the cooking liquor, water or a nutrient liquid such as milk separated milk or whey, the cooked potatoes being preferably extruded into the hot diluent with constant stirring.  For spray drying, sufficient liquid is added to bring the weight up to about 1 1/2 -2 times the raw weight of the potatoes. The sludge is then forced through a sieve of 1/30"-1/16" mesh as by means of a brush, metal helix or metal or rubber paddles, or by cake mixer with revolving, preferably spring-loaded, paddles. Alternatively, a basket centrifuge may be employed.  Spray-drying may be effected by a centrifugal atomizer, e.g. as described in Specification 365,342, [Group XXIX], or by passing the sludge through a jet and disintegrating by air under pressure. Sulphites, such as sodium sulphite or potassium metabisulphite, may be added between cooking and drying in such amount that the final concentration of sulphur dioxide in the powder does not exceed 100-150 p.p.m.  Calcium salts, particularly calcium chloride, may be added up to .2 per cent, or more if milk is used, after mashing and before sieving.  Common salt may also be added up to 5 per cent by weight in the dried product before drying. The pH of the reconstituted product should not exceed that of the fresh mashed potato, i.e. about 5.7-6.  All apparatus used is made of, or coated with, a material such as stainless steel, to avoid contamination with iron.
Patent GB-1498102-A (GB)
Title: Pebble bed reactor and an absorber element therefor
IPC: G21C7/107
Filed: 1975-03-05
Abstract: 1498102 Absorbers INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 5 March 1975 [16 March 1974] 9222/75 Heading G6C In a pebble bed reactor the absorbers are rigid and of open helical form and are rotated to penetrate the bed; the tip of the absorber describes a helical path. A greater depth of penetration is afforded than hitherto.
Patent GB-1369546-A (GB)
Title: Heat treatment process for producing stabilized permanent magnet materials
IPC: C22C1/04
Filed: 1972-02-29
Abstract: 1369546 Heat-treating sintered magnet alloys GENERAL ELECTRIC CO 29 Feb 1972 [1 April 1971] 9230/72 Headings C7A, D Sintered intermetallic cobalt-rare earth metal alloys (the term rare earth metal including yttrium) either in bulk or particulate form are brought to 750‹ to 950‹ C in an inert atmosphere and then cooled to room temperature at not less than 75‹C/minute. The material may be initially at room temperature, at sintering temperature, or at an ageing temperature within 400‹ C below the sintering temperature. The alloys contain at least 70 per cent by weight of the Co 5  R phase and up to 30% of a cobalt-rare earth metal phase richer in rare earth metals. As exemplified, a base alloy of 66À7% Co/33À3% Sm, and an additive alloy of 60% Sm/40% Co were each made by arc-melting under argon, cast and comminuted to 1 to 10 microns. A mixture of the two powders to give 62À6% Co/ 37À4% Sm, was placed in a rubber tube, magnetically aligned by a 60 kilo-oersted field from an electromagnet and pressed hydrostatically at 200 K. p. s. i., after which it was sintered at 1120‹C for 1 hour and slowly cooled.
Patent GB-214278-A (GB)
IPC: B22D35/04
Filed: 1924-04-14
Abstract: 214,278. Plachetka, C. April 13, 1923, [Convention date]. Addition to 212,578. Void [Published under Sect. 91 of the Act]. Moulds.-The centring projection g in the base of the bottom pour moulds described in the parent Specification is made to serve as the runner. The bore is constricted at k to secure quiet filling.
Patent GB-121911-A (GB)
Title: Improvements in Drilling Means.
Inventor: BROOKE GEORGE FREDERICK
IPC: B23B51/00
Filed: 1918-06-08
Abstract: 121,911. Brooke, G. F. June 8, 1918. Drills; chucks.-A drill is made from a flat bar of steel V-shaped at one end and ground to provide angular cutting edges 9. The edges at the other end are inclined to form a tapered shank 10 which is secured in a split cone 11 on the end of a screwed rod 12. The cone is tightened by a sleeve 14 under the action of a nut 15. The sleeve may be screwed at one end in lieu of the nut, and be milled or provided with flats.
Patent GB-552417-A (GB)
Title: Fluid pressure motors
IPC: E05F11/38
Filed: 1941-07-28
Abstract: 552,417. Fluid pressure motors for windowoperating &c. TRICO PRODUCTS CORPORATION. July 28, 1941, Nos. 9568 and 9569. Convention dates, July 27, 1940 and Sept, 17, 1940. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 28. 1942.] [Class 8 (ii)] [Also in Groups X, XXIV and XXVI] A fluid pressure motor particularly for actuating mechanism for the opening and closing of the windows of motor vehicles comprises a two-part piston, one piston being fixed to a piston rod and the other section movable relative thereto. The sections are fitted with reversely directed packing members and enclose locking means which is inoperative during fluid actuation, but locks the piston against extraneous attempts to move the piston rod as in an attempt to prise open a connected window. The piston rod works within a cylinder 8. The floating piston section 17 is forced away from the part 16 fixed to the piston-rod by a light spring, and expansible brake shoes 18, 19 are keyed to the section 17 for axial movement therewith by ribs 25. Rollers 20 work between cam surfaces on the section 16 and the brake shoes. Engine induction-pipe suction normally maintains equal sub-atmospheric pressure on both piston-faces. On placing either end of the cylinder open to the atmosphere the nearer piston packing is ineffective; the pressure between the piston sections increases and acts on the farther section drawing away the cam surfaces and the rollers from locking position. If however an attempt is made otherwise to move the piston rod the pressure is operative on the upper piston section 16; its cam surfaces force out the rollers and brake shoes, bringing the latter into locking engagement with the cylinder-wall. To prevent pressure retention between the piston parts, the floating section is formed with a narrow passage. Specifications 263,920, [Class 80 (iii)], and 552,440, are referred to.
Patent GB-1135375-A (GB)
Title: Releasable bearing for crucible or converter
IPC: C21C5/46
Filed: 1966-03-04
Abstract: 1,135,375. Metallurgical converters. VEREINIGTE ÍSTERREICHISCHE EISENUND STAHLWERKE A.G. 4 March, 1966 [4 March, 1965], No. 9611/66. Heading F4B. A releasable bearing, for a converter 1 capable of being tilted, comprises support members 5 pivotally mounted on an annular carrier body 2 to swing between operative and inoperative positions shown respectively in full and dotted lines, the members 5 being adjustable along the shaft 10 or the shaft 10 being adjustable in side pieces 4 to allow the supporting member to be centred between side cheeks 11 of a bracket 6 and bring the abutment surfaces 7 and 8 into contact. The members are secured in the adjusted position by wedges and a bolt 13. Three supporting members are provided, two diametrically opposite each other in the plane of the trunnions and one perpendicular thereto in the plane of tilting. Claws 15 rigidly secured to the converter wall are provided to support the converter when it is tilted. The claws are held against the carrier ring by wedges 17, 17<SP>1</SP>, 18 and (18<SP>1</SP>).