baber/WOPTO huggingface dataset:
Patent GB-486236-A (GB)
Title: Improvements relating to paper making and like machinery
IPC: D21F7/02
Filed: 1937-03-19
Abstract: 486,236. Drive of paper - making machines. HEYS, R. C. March 19, 1937, No. 8066. [Class 96] [Also in Group XXIV] In order to obtain fine adjustments in papermaking machinery to keep the tension or " draw" of the paper correct, the V-rope drive between a power shaft 1 and a shaft 9 connected to reducing gear in a box 10, comprises expanding pulleys 7, invariable pulleys 6, and jockey pulleys 12. The pulleys 12 are operated by a hand lever 18, Fig. 2, also connected to belt-spreading mechanism 20, 22, 24. The latter comprises shoes 22 carrying rollers 24 and adapted to be moved along the grooves of the pulleys 7 when the pulleys 12 are moved to engage the ropes 2, Fig. 2, by depressing the lever 18. The shoes are connected by toggle links 19 to the lever and carry rollers 24. When the pulleys 12 are retracted the shoes and rollers are moved round the pulleys 7 to engage the ropes and separate them from the pulleys 7 to stop the drive. Each of the jockey pulleys may be fitted with a compression spring which comes into action when the pulley is pressed against a belt. The flanges of the pulleys 12 may be spring-pressed so as to be resilient in relation to one another.
Patent GB-225113-A (GB)
Title: Improvements in fruit graders
IPC: B07C5/22
Filed: 1924-03-31
Abstract: 225,113. Cutler, F. W. March 31, 1924. Sorting by weighing. - A device for grading fruit according to weight comprises an endless chain travelling upon a track, the end of the track at which the chain enters being formed as a yieldable member to prevent bruising of the fruit. A series of pockets 11 are traversed along the track 14 by means of an endless chain 12. The pockets are pivoted at their forward ends and are normally maintained in a horizontal position by projections 13 which bear on the track. Fruit is transferred from a shoot 9 into the pockets by means of a rotatable member 10, shock being prevented by providing in the track 14 at the feeding point a pivoted, spring-suspended tongue 18 upon which the projections 13 bear. Weigh-beams 21, pivoted on adjustable fulcrum bars 23, are arranged across the track 14 in such a manner that the projections 13, in passing, bear upon cross-pieces 31 on the beams. Baskets 28 are suspended from the other end of the beams, and are each adapted to contain a specimen of fruit of the size to be graded out. Should the weight of the fruit in the pocket 11 exceed that of the specimen, the beam will tilt and allow the projection 13 to run off the track, thus emptying the pocket.
Patent GB-1043345-A (GB)
Title: Phenolic polyamines
IPC: C08G59/54
Filed: 1963-02-28
Abstract: The invention comprises compounds of formula <FORM:1043345/C2/1> wherein R1 is a divalent open-chain hydrocarbon radical, R2 is a straight-chain hydrocarbon radical, n is 0 or 1, p is 0 or 1, but when n is 1, p is 0.  Such compounds are prepared by mixing the parent phenolic carboxylic acid and the amine NH2(CH2CH2NH)2- 4H in a solvent, when an intermediate appears to be formed, followed by the azeotropic removal of water.  In examples, the solvent was toluene and the reactants were: (1) cashew nut shell liquid (I)/tall oil fatty acid pitch product + diethylenetriamine; (2) I/C18 unsaturated fatty acid product + triethylenetetramine (II); (3) I/unspecified unsaturated fatty acid product + II; (4) phenol-cresols/tall oil fatty acid product + II.ALSO:Curing agents for epoxy resins have the formula <FORM:1043345/C3/1> wherein R1 is a divalent open-chain hydrocarbon radical, R2 is a straight-chain hydrocarbon radical, n is 0 or 1, p is 0 or 1, but when n is 1, p is 0.  It is stated that the phenolic nucleus of the curing agent becomes an integral part of the cured epoxy resin.  Resins mentioned are those prepared (a) from epichlorohydrin and Bisphenol A, resorcinol, polyhydric novolak, glycerol, pentaerythritol or reactive amines, (b) by direct epoxidation of unsaturated compounds.  Conventional curing agents such as amines, anhydrides and mercaptans; accelerators such as 2,4,6-tri-(dimethylaminomethyl) phenol and fillers such as talc, silica, alumina, steel chips or filings, Al flake, CaCO3, thixotropic agents, including fibrous asbestos and chopped glass, may also be used.
Patent GB-1244796-A (GB)
Title: An improvement in or relating to float valves
Inventor: BACON MERLYN CECIL PHILIP STEP
IPC: F16K3/26
Filed: 1969-02-14
Abstract: 1,244,796. Valves. PEGLER-HATTERSLEY Ltd. 30 Jan., 1970 [14 Feb., 1969], No. 8134/69. Heading F2V. A float valve includes a water discharge tube 34 having a plurality of axially spaced holes 38 all arranged to direct water downwardly either side of the float arm 22, or to direct water to the sides of the tank. The discharge tube may be made of a plastics material (Fig. 7, not shown) in which case it is arranged to snap over an enlargement (46) on an elbow connection (40).
Patent GB-1241532-A (GB)
Title: Improvements in agricultural machines comprising rotor-type cutting mechanisms
IPC: A01D34/66
Filed: 1970-02-19
Abstract: 1,241,532. Mower. KUHN FRERES & CIE S.E.C.S. 19 Feb., 1970 [25 Feb., 1969], No. 8137/70. Heading A1F. A vertical axis rotating disc mower has an elongated static spindle or spindles coaxial with, extending through, and projecting above each of one or more of the rotors. Rotor 11 may be made fast with a toothed ring 13 on bearings 14 housed on the fixed static spindle 10. Toothed ring 13 is driven from a drive shaft 17 via bevel pinions 15. A casing 21, comprising a lid 25 and shaft covers 22, 23 contains the power transmission means. A frusto conical crop directing cap 26 is mounted on each rotor around the spindle 10 whose upper end can be externally or internally threaded, or shouldered, or provided with a hole for the insertion of a pin, for attachment of accessories. The suggested accessories are a driver protection cover, a bracket for lifting the mower or supporting it to reduce the ground weight, and a windowing screen or deflector. Spindles 10 can also be used to attach a crop treating or spreading machine or to attach, via hydraulic rams for vertical and inclination adjustment, the mower to a self propelled vehicle such as a truck.
Patent GB-869467-A (GB)
Title: Process for the manufacture of modified cyclohexanone resins
Inventor: JENKINS VICTOR FREDERICK
IPC: C08G2/00
Filed: 1957-03-12
Abstract: A cyclohexanone-methanol or alkylcyclohexanone-methanol resin is esterified with a carboxylic acid or ester-forming derivative thereof.  The number of hydroxyl groups in the initial resin may be increased by a preliminary treatment with a reducing agent as described in Specification 864,541.  Suitable acids or derivatives thereof are acetic acid, benzoic acid, acids of tall oil, oleic or stearic acid, acids of linseed, tung or dehydrated castor oil, maleic, phthalic or adipic acid, or anhydrides, esters (including glycerides) or chlorides of these acids.  Reaction with a mixture of long chain fatty acid and a dicarboxylic acid anhydride, or partial esterification with a long chain fatty acid followed by reaction with a dicarboxylic acid anhydride gives products useful in making alkyd resins, or the cyclohexanone resin may first be treated with sufficient dicarboxylic acid to give a product containing free COOH groups, which on reaction with a polyhydrine alcohol such as pentaerythritol yields an alkyd type resin.  In Example 1 a mixture of o, m, and p-methyl-cyclohexanone, methanol and sodium hydroxide were refluxed, the resultant resin extracted with ligroin, and esterified with phthalic anhydride in toluene. Examples 2-5 are similar using (2) maleic anhydride; (3) acetic anhydride in pyridine; (4) stearic acid chloride in pyridine; (5) oleic acid.  In Example (6) the initial resin is partially esterified with linoleic acid, and the product then esterified in Example (7) with phthalic anhydride. The products are useful as plasticizers, surface coating materials in lacquers, varnishes or paints, as potting resins or as modifiers in cellulose nitrate lacquers.
Patent GB-567320-A (GB)
Title: Improvements in or relating to fluid pressure indicators for pneumatic tyres and other inflated bodies
IPC: G01L17/00
Filed: 1943-05-22
Abstract: 567,320. Pressure gauges. TURNER, W. May 22, 1943, No. 8170. [Class 106 (ii)] The indicating member 2, Fig. 1, of a fluid-pressure gauge for use upon pneumatic tyres or other inflated bodies has graduations 3 arranged in staggered groups, the graduations in each group being disposed vertically above one another, and the top and bottom graduation 5 of each group being extended to meet the adjacent groups. In an alternative arrangement, Fig. 3, the groups of graduations are arranged in chequered formation 4a and the top and bottom graduation 5a of each group is extended completely around the indicating member. The top edge of the gauge casing is coloured or made of a material contracting with that of the indicating member to facilitate reading.
Patent GB-1286798-A (GB)
Title: Additive composition for hydraulic cement-based mixtures
IPC: C04B28/02
Filed: 1970-02-20
Abstract: 1286798 Cementitious compositions KAO SOAP CO Ltd 20 Feb 1970 [21 Aug 1969] 8232/70 Heading C1H A dispersing agent for cementitious compositions comprises a gluconate and a salt (defined) of a high condensate of naphthalene sulphonic acid with formaldehyde. The composition can also contain accelerators, retarders, sand and gravel. Cement includes, Portland, natural, pozzuolanic and lime.
Patent GB-877267-A (GB)
Title: Improvements relating to electrical computing apparatus
Inventor: WILSON BRIAN
IPC: H01J29/41
Filed: 1959-03-11
Abstract: 877,267. Cathode-ray tubes. ERICSSON TELEPHONES Ltd May 18, 1960 [March 11, 1959], No. 83334/59. Class 39(1). An electronic computer comprises means 16, Fig. 3 for producing an electron beam K which is directed on to a secondary electron emitting target 1 having an electrical potential distribution representing on a two co-ordinate system the products of multiplicands and multiplicators, see Fig. 4, means (not shown) which may be electrostatic or electromagnetic, for deflecting the beam in response to signals representing a multiplicand and a multiplicator respectively and an electrode 18 for collecting electrons i emitted by the target to obtain a third signal representing the product of the multiplicand and the multiplicator. The target 1 may comprise a rectangular plate of a resistive material e.g. a mixture of carbon and fire clay, having one plane face 3 and being thickest at one corner and gradually decreasing in thickness towards all other points on its periphery. It may be produced by moulding. The plane face is made electron emitting by a coating of barium chloride. The target is provided with an electrode 9 at its thickest corner and, at the diagonally opposite corner, an electrode 8 at the junction of two copper bars running along the X- and Y-axes respectively. The Figure shows the potential distribution when 36 volts is applied across the electrodes 8, 9. The beam is deflected by the two applied signals to a point on the target representing the required product and it is shown that the voltage derived from the collecting electrode 18 is equal to the voltage at that point on the distributed target potential. The tube may be provided with four such targets, cruciformly arranged in order to provide for the multiplication of numbers of different algebraic signs.
Patent GB-692932-A (GB)
Title: Improvements in or relating to control means for fluid pressure operated apparatus
Inventor: CONWAY HUGH GRAHAM
IPC: F15B11/22
Filed: 1950-04-03
Abstract: 692,932. Aircraft controls. BRITISH MESSIER, Ltd. Jan. 24, 1951. [April 3, 1950] No. 8341/50. Class 4. [Also in Group XXIX] In fluid-pressure-operated apparatus comprising two controlled elements, such as the camber control flaps 12, Fig. 1, on an aircraft. actuated by separate fluid-pressure motors 11 working on a common pressure supply and of the type including a flow throttling device 16 actuated bv the differential movement of the two controlled elements to vary differentially the flows to the motors in such manner that the latter are caused to move in unison, the throttling device 16 consists of a valve one part of which divides the common fluid supply and differentially throttles the flows to the motors when the movement of the controlled elements is in one sense, and the other part of the valve differentially throttling the flows from the motors when the movement is reversed, and means, such as non-return valves, is provided to determine, in accordance with the sense of movement of the controlled elements, which part of the valve is effective. The invention may also be applied to the actuation of twin rudders on opposite ends of an aerofoil. In the illustrated embodiment, liquid is drawn from a reservoir 21, pressurised by a pump 20, and supplied to the motors under the control of a pilot-actuated selector valve 18. The flaps 12 are connected bv cables 14 to levers 33 freely rotatable on a common axis. Each lever rotates a further lever, such as 27, Fig. 2, and these latter levers carry rollers 28 engaging in slots in a floating lever 30, the -latter being pivoted at 35 on the stem of a piston-type valve 34. The pressure-fluid enters the valve casing at 17, flows through a liner 37 into the interior of the valve 34, and then is divided into two streams which flow out through grooves 38, 41 to the motors. The latter are single-acting, being returned either by springs or by pressure from accumulators 13, Fig. 1. Fluid returning from the motors when the latter move in the opposite sense enters valve 34 through grooves 39, 40, the two streams unite in the interior of the valve, and the single stream flows back to the selector valve through port 17. As valve 34 is moved in response to the differential movement imparted by the motors to floating lever 30, so the streams flowing to or from the motors are differentially throttled to cause the slowing down or speeding up of the appropriate motor so that the latter move in unison. Non-return valves, not shown, in the connections to the grooves 38 ... 41 ensure that only the pair of throttling edges associated with the grooves 38, 41 or 39, 40 appropriate to the direction of flow to or from the motors is operative at the one time. The differential mechanism may comprise interengaging worms and a worm wheel or interengaging screw-threaded devices.
Patent GB-957760-A (GB)
Title: Improvements in or relating to the manufacture of spades, forks and similar tools
Inventor: WILSON GEORGE REMINGTON ALLEN
IPC: B21D53/66
Filed: 1962-03-05
Abstract: 957,760. Making spades and forks. SPEAR & JACKSON Ltd. March 4, 1963 [March 5, 1962], No. 8379/62. Heading B3A. A method of making blade and handle carrying members for spades, forks and similar tools comprises forming a pair of such members from a single length of metal stock of rectangular cross-section one of said members being forged at one end of said length and the other member being forged at the other end thereof so that said members are joined together by a solid portion which is subsequently divided medially of its length to provide two separate blade and handle carrying members each having a solid end for securement to a blade of the tool. Oppositely disposed depressions 16, Fig. 2, are forged in a single length of metal stock of rectangular crosssection. One end of the stock is then rolled to fishtail shape and trimmed, Fig. 4, by punch and die apparatus. The fishtail is then formed into a socket, Fig. 5, by forging around a tapered former and a short length of a seam thus formed is welded. A socket is then similarly formed at the other end of the workpiece. The solid middle portion of the workpiece joining the sockets is then forged in round cross-section, then bent, Fig. 9, and divided transversely by sawing. The solid ends of the finished members are then welded to blades 10, Fig. 1, and handles 12 are secured in their socketed ends. The blades 10 may be forged or cast and formed with a short butt to which the member is welded. The dividing sawcut may be inclined rather than perpendicular to the axis of the solid middle portion.
Patent GB-1241784-A (GB)
Title: Apparatus for preparing beverages
IPC: A47J31/40
Filed: 1970-02-20
Abstract: 1,241,784. Beverage dispensers. ROWENTA-WERK G.m.b.H. 20 Feb., 1970 [27 Feb., 1969], No. 8396/70. Heading A4T. In a beverage dispenser water passes valve 7, Fig. 1 and flow heater 8 to enter mixing chamber 10 with powder entering at 5a from auger 5 driven manually from lever 17 via lever 19, cord 20 and clutch-ratchet device 21, the levers 17, 19 being variably held in their lower positions to actuate switch 16 opening valve 7 to vary the quantity of water mixing with the powder. Vapour from the mixing chamber is conducted upwards to vents 13 via chimney 11 heated by lamp 12. On turning lever. The powder in chamber 3 is agitated by wheel 6 driven from auger 5. On pushing down handle 17, shaft 18 turns lever 19 pulling cord 20 over pulley 26 and unwinding cord off pulled 38b, Fig. 4 loose on shaft 31 but connected thereto via pawl 36 and ratchet wheel 35 to rotate auger 5 via key 33 in shaft 31, the rotation also winding up spring 41 which, on releasing handle 17, rotates the pulley 38b to rewind the cord without rotating the auger due to slipping of the pawl over the ratchet. The valve 7 may also be manually actuated from lever 17. The quantity of powder is variable by the number of times of depressing handle 17.
Patent GB-982982-A (GB)
Title: Improvements in or relating to stop mechanism for the length and depth of cut in lathes and like machine tools
IPC: B23Q16/00
Filed: 1961-03-08
Abstract: 982,982. Lathe and like details. H. WAYMOUTH. March 1, 1962 [March 8, 1961], No. 8407/61. Heading B3T. Stop mechanism for depth of cut and length of traverse in lathe and like machine tools is interconnected so that a number of lengths and diameters are associated for repetition of stepped workpieces &c. A rotatable stop-bar 35, Figs. 1 and 2, carrying adjustable stop-rods R 1 -R 6  is supported by a lathe &c., carriage and is rotated to its indexed positions by hand. The stop-rods co-operate with a fixed abutment 52 on the lathe bed. A cam 30 on the end of the shaft 35 operates through linkage 29, 28, 27, 24, Fig. 2, to rotate a stop member 19 about a spindle 18. The member 19 carries a catch 40 which, due to cam 30, is moved in an arc across a stop drum 7 secured to the usual cross-feed screw 8 of a lathe &c. The stop drum carries a number of adjustable collars 1-6, each of which may be individually adjusted and locked relative to the drum and thus the screw 8. The rack collar carries an outwardly projecting stopdog 10 which corresponds with one of the rods R 1  &c. and co-operates with the catch 40 to limit the depth of cut.
Patent GB-512134-A (GB)
Title: Providing cast iron articles with a cell-like surface
IPC: C23F1/00
Filed: 1939-03-17
Abstract: 512,134. Piston rings. HOWLETT, J. W. March 17, 1939, No. 8520. Addition to 488,687. [Class 122 (i)] [Also in Group II] A piston ring made of cast iron containing more than 0.15 per cent. of phosphorus is treated by the method described in the parent Specification to give it a cell-like surface and is then plated with a relatively soft metal or alloy, e.g., tin, cadmium, zinc, or their alloys. The plating is thin, e.g. between 0.0005 and 0.005 of an inch in thickness, so that it follows the contours of the cell-like surface, the pores not being completely filled with plating metal.
Patent GB-565894-A (GB)
Title: Improvements in and relating to the manufacture of concrete slabs
IPC: B28B1/00
Filed: 1943-05-28
Abstract: 565,894. Floor slabs. MATHEWS, C. B., and AMBROSE, J. G. May 28, 1943, No. 8569. [Class 87 (i)] A concrete flooring slab with corner supporting feet is formed by first casting the flat slab 1 in a mould 2 supported on a pallet 8 and then whilst the concrete is still wet supporting on the pallet a templet frame 3 formed of frame members 6 supported on legs 7 and provided with corner foot moulds 4 formed from metal strip 5 and casting the feet 9 in the moulds 4 of sawdust or wood concrete. The bearing surfaces of the feet may be finished off by a disc abrading machine.
Patent GB-1094442-A (GB)
Title: Laminated magnetic cores for inductive apparatus
Inventor: BENNETT DONALD ANTHONY
IPC: H01F27/26
Filed: 1964-03-02
Abstract: 1,094,442. Transformers. ENGLISH ELECTRIC CO. Ltd. Feb. 26, 1965 [March 2, 1964], No. 8629/64. Heading HIT. The laminations of a magnetic core 11 are held together by clamping bands 17 which are insulated from the core, one or more metal plate members 18 in capacitive association with the core being connected to the clamping bands to reduce the capacitive impedance between the bands and the core and hence the voltage induced between them when the apparatus is subjected to an impulse voltage. The metal plates 18 are in contact with bent ends of the bands 17 and which protrude from the undersides of the crimped sleeve fasteners 20 and are connected to the earthed core frame of the transformer by a single cable 22. Wooden dowels 26, 30 (Fig. 2, not shown), may be placed beneath the bent edges of the plates 18 and beneath the clamping bands 17 and packing pieces, some of which are shaped to position the insulating cylinder between the core and the inner winding, may be placed between the clamping bands and the core. Fibre glass links may be included in the clamping bands 17.
Patent GB-1082480-A (GB)
Title: Watertight hooks for footwear
IPC: A43C3/00
Filed: 1966-02-28
Abstract: 1,082,480. Lacing hooks. GOBIN DAUDE SOC. ANON. Feb. 28, 1966 [April 22, 1965], No. 8647/66. Heading A3H. [Also in Division F2] A watertight hook C for footwear comprises a base E the centre of which is pressed out to form a tube the wall of which is divided, by two or four slots into two or four fixing claws, a 1  to a 4 , or into any other number of claws.
Patent GB-810780-A (GB)
Title: Improvements in or relating to the manufacture of photographic material
IPC: G03C8/28
Filed: 1956-03-20
Abstract: 810,780. Photographic emulsions. GEVAERT PHOTO-PRODUCTEN N. V. March 20, 1956 [March 21, 1955], No. 8655/56. Class 98(2) A silver halide emulsion in a watersoluble bending agent such as gelatine or polyvinyl alcohol is dispersed in a solution of water-insoluble water-permeable polyvinyl butyracetal in a non-water-miscible solvent and the resulting dispersion is coated on a support. The procedure follows that of Specifications 718,404, 750,201 and 786,274 which use cellulose ether or other polymeric material instead of polyvinyl butyracetal. The dispersion is easily coated and dried and layers thereof are used normally, but a water-soluble solvent such as 5 to 25 per cent of alcohol may be added to the treating baths to increase permeability thereof. Examples are directed to (1) a normal emulsion which is exposed, metol-hydroquinone developed and fixed; (2) a multilayer colour film of conventional sequence; (3) a mixed red and green sensitive layer with overcoated blue sensitive layer; (4) a three-mixed layer, and (5) a material as of examples 2-4 without couplers for sequential exposure and development procedures.