baber/WOPTO huggingface dataset:
Patent GB-814550-A (GB)
Title: Production of organic acid esters of cellulose
IPC: C08B3/06
Filed: 1956-07-13
Abstract: Organic acid esters of cellulose are produced by activating a water-containing wood pulp cellulose by successive treatments first with a lower aliphatic acid free from lower aliphatic acid anhydride and then with a mixture comprising a lower aliphatic acid, at least enough of a lower aliphatic acid anhydride to react with all the water in the cellulose and a catalyst for the reaction of the acid anhydride with water, and then esterifying the activated cellulose with an organic acid anhydride in the presence of at least enough of a water-immiscible solvent to dissolve completely the cellulose ester produced.  A "lower aliphatic acid" is defined as an aliphatic acid containing up to four carbon atoms.  The wood pulp may be subjected to the pretreatment in the form of sheets or wide bands or of a mass of individual fibres obtained by the shredding of sheets or rolls. Suitable catalysts for the reaction of the anhydride and water are strong mineral acids, e.g. sulphuric acid or perchloric acid, toluene sulphonic acid and ferric chloride, these compounds also being suitable esterification catalysts.  Suitable water-immiscible solvents are methylene chloride, chloroform, ethylene chloride and tetrachloroethane.  Organic acid esters of cellulose specified are lower aliphatic acid esters, e.g. cellulose acetate, cellulose propionate, cellulose butyrate, cellulose acetate-formate, cellulose acetate-propionate and cellulose acetate-butyrate, and also cellulose benzoate.
Patent GB-704331-A (GB)
Title: Improvements in or relating to variable speed hydraulic drives
IPC: F16H61/46
Filed: 1950-09-04
Abstract: 704,331. Centrifugal-separators. KLATTE, T. Sept. 4, 1950 [Sept. 7, 1949], No. 21776/50. Class 23 [Also in Groups XXVI and XXIX] A centrifugal pump 29 is used to supply oil to the main pump 1 of a hydraulic coupling (see Group XXIX) and also to separate any air from the oil. The air passes upwards through an aperture 36 whilst the oil is delivered through a conduit 38.
Patent GB-805340-A (GB)
Title: Improvements in and relating to electric lamp sockets
Inventor: HEATH CLARENCE WILLANS
IPC: H01R33/46
Filed: 1956-07-13
Abstract: 805,340. Lamp-holders. CARR FASTENER CO. Ltd. July 13, 1956, No. 21786/56. Addition to 768,159. Class 38 (1). The outer ends of the tubular shanks 8 of the sheet metal spring plunger contacts 7 of a lamp-holder according to Claim 1 of the parent Specification are formed with plate-like portions 11 having a width greater than the shank and adapted to receive socket connectors. The inner ends of the shanks carry U-shaped contacts 9, one leg of each of which forms the contact proper and the other leg is anchored to the shank by out-turned lugs on the latter.
Patent GB-1270698-A (GB)
Title: Method and device for preparing synthetic resins
Inventor: PAPENMEIER GUENTHER
IPC: B29C48/29
Filed: 1969-04-29
Abstract: 1,270,698. Mixing particulate materials. G. PAPENMEIER. 29 April, 1969 [29 April, 1968], No. 21883/69. Heading B1C. Apparatus for plasticizing particulate synthetic resins by frictional heat comprises a container 4 having a rotatable mixing device 2 in its lower part carrying a funnel-shaped guide member 6 and members 5. Materials are supplied axially of the container at 1 and circulate in the Zone I. The speed of the mixing device is adjustable. As the particles swell their bulk density decreases and they are displaced by the colder incoming particles. They circulate successively in Zones II, III and are ultimately discharged through the outlet 8. There may be an additional guide member 7. Several of such mixers may be connected in series, each being independently controlled and may discharge into a single or twin screw extender; densification, degassing and hot air drying may be performed in the several stages avoiding complication of the extender.
Patent GB-592708-A (GB)
Title: Improvements relating to sheet metal drums or like containers
IPC: B65D25/28
Filed: 1944-11-08
Abstract: 592,708. Drums. GREGAINS, P. K. W., BROWN, H., and READS, Ltd. Nov. 8, 1944, No. 21902. [Class 21] A sheet-metal drum &c. in which the seaming of the ends 1 to the tubular body 2 may be effected entirely from the exterior and in which the drums may be stacked without liability to damage the pouring neck, is constructed with an upward flange 3 in the top which is doubleseamed at 4 with the drum wall 2a. The bottom may be simultaneously secured similarly, external seaming chucks 5, 5a only being necessary. Segmental embossings 9, 10 on the top with a valley 11 between them engage corresponding recesses in the bottom of a drum positioned above. A pouring neck and a handle 13 which may be pivoted are arranged in the valley 11.
Patent GB-1005616-A (GB)
Title: Device for converting rectilinear motion into rotary motion
IPC: H03J1/14
Filed: 1963-05-31
Abstract: 1,005,616. Cam mechanism. H. L. NAIMER. May 31, 1963 [June 26, 1962], No. 21994/63. Heading F2K. In a cam mechanism for converting the axial movement of a member 20 into an angular movement of a member 22, e.g. to operate a switch, the member 20 acts through a bearing 38 and pressure ring 40 on an intermediate member 21 carrying two or more (preferably four) pairs of rollers 46, 48 respectively engaging first inclined cam surfaces 50 on a fixed member 51 and second inclined cam surfaces 52 on the output member 22. A spring 32 biases the members 21, 20 upwardly and the same spring, or a further spring, biases the member 22 angularly. On depression of the member 20 (e.g. by a solenoid) the descending member 21 is turned helically by the cam engagement 46-50 and, by virtue of the cam engagement 48-52, imparts an increased turning movement to the member 22. The cam surfaces 50, 52 are formed as facial teeth on the members 51, 22 and may or may not be planar. The inclination of the cam surfaces may be relatively steep to reduce contact pressures and allow the use of synthetic materials (super polyamide or thermoplastic) rather than metal in construction. The angular movement of member 22 is limited by interfitting projections 23a, 24a and also by interfitting projections 22a, 51a. The ring 40 may be coupled to the intermediate member 21 by friction or by positive means such as the projections and recesses 21a, 40a shown. In a modification the member 21 has double inclined-plane cam surfaces engaging rollers respectively on the parts 51 and 22. The Specification also describes a construction in which a solenoidactuated intermediate member carries individual rollers which simultaneously engage inclined cam surfaces on a fixed member and on a rotary output member, the construction being illustrated schematically in Fig. 3 (not shown).
Patent GB-615761-A (GB)
Title: Improvements in coin testing devices
Filed: 1946-07-24
Abstract: 615,761. Coin-freed apparatus. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN & IRELAND), Ltd., and HASTED, H. C. July 24, 1946, No. 21999. [Class 27] Testing coins; clearing-apparatus. - In testing mechanism comprising a counterweighted carrier which grips a correct coin until tipped by it past a " reject " position to an " accept " position, and having means operable by an intending purchaser for turning the carrier to the " reject " position and there to release a defective coin lodged in it, said means includes a lever adapted to engage an abutment on the carrier for thus turning it, the carrier has a second abutment which then abuts the lever to prevent the carrier turning unduly and the lever has a ramp to open coin gripping means on the carrier so as to release the coin. The carrier 1, mounted on pivots 3, 4 and counterweighted at 5, has claws 12, 14 for gripping a coin just within the rim; the claw 12 is fixed to the carrier whilst the claw 14 is secured to a rod 15 pivotally mounted in the carrier and formed with a cranked tail 17. The carrier, in its supporting frame 8, is inclined laterally so that the weight of the tail 17 biasses the claw 14 to close on to the fixed claw 12. In .the normal coin-receiving position shown of the carrier, the tail 17 engages behind the abutment 18 on a lever 19, and this holds the claw 14 back sufficiently to admit a coin, received from an insertion chute, into the carrier. As the carrier commences to tilt under the weight of the coin, the tail 17 travels down a ramp 23, at the edge of the abutment 18 so that the claw 14 closes-in to grip the coin and retain it in the carrier until the lower " accept position is reached when the tip of the tail 17 strikes the enlarged end 11 of a strip 9 fixed to the frame 8, which opens the claw to release the coin, the carrier then returning. If the coin is too thick just within the rim, the tail 17 is held by the claw 14 in a position in which it strikes a lug 10 on the strip 9; this opens the claw to release the coin at an intermediate " reject " position. The lug 10 may be adjustable, and the tail 17 passes just in front of it with a correct coin. If the coin remains in the carrier through being too light or otherwise, attempted opening of an associated article-delivering drawer rocks the lever 19 clockwise and the lever strikes an abutment pin 24 on the carrier to turn it to the " reject" position, a second abutment pin 25 on the carrier then contacting the end of the lever to locate the carrier accurately and the carrier coming to rest suddenly so as to shake the coin out. At the same time the abutment 18 engages or remains in engagement with the tail 17 to hold the claw 14 open.
Patent GB-1005521-A (GB)
Title: A method of agglomerating magnesium silicate nickel ores
IPC: C22B1/24
Filed: 1964-05-27
Abstract: In a method of agglomerating a magnesium silicate-nickel ore, the ore in fine-grained form is pelletized and the pellets are raised to a temperature which is below the melting point of the ore at such a rate that the iron contained in the ore is preserved in the trivalent form and recrystallizes, at least partly together with bivalent oxides, in the form of inclusions in a magnesium silicate matrix.  An upper temperature limit of about 1350 DEG  C. is specified in the case of gamierite with a minimum heating period of about 2 hours.  By microscopic examination of polished sections of the pellets for the formation of spinels, it may be determined that the rate of heating of the pellets is sufficiently slow.
Patent GB-1127323-A (GB)
Title: An improved plant support for horticultural or agricultural purposes
IPC: A01G17/04
Filed: 1965-05-25
Abstract: 1,127,323. Plant supports. J. D. WIGHTMAN. 11 May, 1966 [25 May, 1965], No. 22043/65. Heading A1E. A plant support comprises an upright member 11 having an open socket end in which are received limbs of hook members 20 which serve to support twine 30 which also passes under hooked stakes 25 arranged in a circle about the member 11, the twine being arranged to form triangles 31. The member 11 comprises upper and lower portions joined by a sleeve, the lower portion having a lug 15 which abuts against plate 16 when the support is erected.
Patent GB-423603-A (GB)
Title: Process for the treatment of herring and other fish of the clupeidae family for manufacture of oils and foodstuffs poor in fat and having good keeping properties
IPC: C11B1/02
Filed: 1933-08-05
Abstract: Oils are extracted from herring and other fish of the clupeidae family by dehydrating the fish under vacuum at below 70 DEG  C. to a water content of less than 20 per cent calculated on the press cake and then expressing the oil in hydraulic presses, of the type used for expressing oil from vegetable materials, at 50--250 kg. per sq. cm.  The fish may be ground to pulp before treatment. Herring to which fish liver grax or other fat-containing fish refuse may be added is reduced to a homogeneous pulp in disintegrating and grinding mills and dried at not over 55 DEG  C. preferably to a water-content of 10--15 per cent, the material on leaving the drying apparatus at 45--55 DEG  C. being subjected to the pressure treatment.  U.S.A. Specification 1,821,639 is referred to.ALSO:Oils and a human or animal food which will keep are produced by dehydrating herring or other fish of the clupeidae family under vacuum at below 70 DEG  C. to a water content of less than 20 per cent calculated on the pressed food, and then expressing the oil in hydraulic presses, of the type used for expressing oil from vegetable materials, at 50-250 kg. per sq. cm., the product obtained containing less than 6 per cent of fat. The fish may be ground to pulp or cut into boneless pieces before treatment. Herring, to which fish liver grax or other fat-containing fish refuse may be added, is reduced to a homogeneous pulp in disintegrating and grinding mills and dried at not over 55 DEG  C. preferably to a water content of 10-15 per cent, the material on leaving the drying apparatus at 45-55 DEG  C. being subjected to the pressure treatment, giving food cakes of suitable thickness. U.S.A. Specification 1,821,639 is referred to.ALSO:An animal food which will keep is produced by dehydrating herring or other fish of the clupeidae family under vacuum at below 70 DEG  C. to a water content of less than 20 per cent calculated on the pressed food, and then expressing the oil in hydraulic presses, of the type used for expressing oil from vegetable materials, at 50-250 kg. per sq. cm., the product obtained containing less than 6 per cent of fat.  The fish may be ground to pulp or cut into boneless pieces before treatment. Herring, to which fish liver grax or other fat-containing fish refuse may be added is reduced to a homogeneous pulp in disintegrating and grinding mills and dried at not over 55 DEG  C., preferably to a water content of 10-15 per cent, the material on leaving the drying apparatus at 45-55 DEG  C. being subjected to the pressure treatment, giving food cakes of suitable thickness. U.S.A. Specification 1,821,639 is referred to.
Patent GB-240000-A (GB)
Title: Folding dinner wagon
IPC: B62B3/02
Filed: 1924-09-19
Abstract: 240,000. Le Maistre, F. F. Sept. 19, 1924. Rack stands.-A folding dinner wagon or dumb waiter comprises two end frames each formed of a pair of legs C, C<1> hinged together at their upper ends, and two trays A, A<1> pivoted at B, B' respectively to the legs C, the trays being connected together by pivoted links E. The lower tray is connected to the legs C<1> by pivoted links G which prevent undue spreading of the legs C, C' and cause the legs to collapse together when the upper tray is turned up.
Patent GB-954846-A (GB)
Title: Improvements in or relating to hydraulic control devices for vehicle pneumatic braking systems
IPC: B60T11/20
Filed: 1961-06-20
Abstract: 954,846. Fluid-pressure brakes. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. June 20, 1961 [June 24, 1960], No. 22181/61. Heading F2F. [Also in Division F1] An hydraulic control system for vehicle pneumatic braking systems comprises at least two transmitting elements 21, 22, Fig. 1, connected by independent conduits A, B, to a similar number of receiving elements 30, 31, the transmitting elements being movable by a single control member to effect movement of the receiving elements which act on a single member 38, breakdown of one of the conduits permitting the control member to move with a greater displacement to effect operation of the elements connected to the intact conduit and displacement of the member 5. The transmitting elements 21, 22 have pistons connected by a balancing linkage 16 to a control lever or pedal P, the linkage carrying a rigid transverse member 14. The pistons of the receiving elements abut a rigid transverse member 36 on the member 38 which may be connected to a control member of the braking system. During normal operation, movement of the pedal P to a position P1 is conveyed by the balancing linkage to the pistons of the transmitting elements which displace fluid in the conduits to move the pistons of the receiving elements and the member 38. The linkage 16 is normally spaced a distance from the transverse member 14 but, in the event of breakage of one or other of the conduits A, B, the pedal is movable to to the position P1, the piston associated with the broken conduit enabling the linkage to move until it is engaged by an abutment 18 on the rigid transverse member 14 whereupon further movement of the pedal to the position P2 displaces the piston of the transmitting element associated with the intact conduit to move the piston of the respective receiving element and the member 38. In another embodiment, the elements are arranged in tandem and during normal operation, movement of the piston of the transmitting element 20a, Fig. 2, by the pedal P causes a corresponding movement of the piston of the receiving element 31a to move the member 38a, the pistons of elements 21a, 30a remaining stationary. In the event of conduit B breaking, the pedal is movable to position P1, wherein an abutment on the piston of element 20a engages the piston of an element 21a so that further movement of the pedal to position P2 causes movement of the piston of element 21a to transmit movement to the piston of the receiving element 3Ca, the latter piston having an abutment engaging the piston of element 31a to move the member 38a. If conduit A breaks, the movement of the pedal to position P1 moves the piston of element 21a to the end of its stroke, further movement of the lever then displacing the pistons of elements 20a, 31a. In further embodiments, the transmitting elements may be arranged in parallel with the receiving elements in tandem, or vice versa.
Patent GB-864406-A (GB)
Title: Improvements relating to disc brakes
Inventor: REDMAYNE LEONARD
IPC: F16D55/228
Filed: 1958-07-11
Abstract: 864,406. Disc brakes. GIRLING Ltd. Oct. 12, 1959 [July 11, 1958], No. 22265/58. Class 103 (1). A disc brake has a disc comprising a ring 11 mounted on and extending inwardly from an annular member 10 rotating with a wheel or other part of a vehicle transmission and friction pads 21, 29 for engagement with one face of the disc are mounted upon opposite ends of a floating beam 19 movable towards and away from the disc. While friction pads 21, 29, adapted to engage the opposite face of the discs are mounted on coupled levers 23, 24, which fulcrum on draw-bars 33, which connect the levers to the beam 19 of which the axes are substantially parallel to the axis of the disc, the torque is taken by a stationary spider or like member 14, providing abutments for the beam 19 and for the levers 23, 24 and for the drawbars 33. The actuating lever 23 and the second lever 24 are formed with laterally-projecting bosses 37 which are received between the horns 15 on the fixed spider 14 which takes the torque on these members, when the brake is applied, and the beam 19 has similar bosses engaging between horns on the other side of the spider. Specification 864,407 is referred to.
Patent GB-199979-A (GB)
Title: Snap hooks
IPC: F16B45/06
Filed: 1922-08-17
Abstract: 199,979. Frechette, A. A. Aug. 17, 1922. Hooks, spring, and closed.-A snap-hook of the type comprising two members each having a hook at one end and an eye at the other, has the eye rotatably connected to each shank member. The hook members 10, 11 are pivoted at 30 and have each an arcuate slot in which the enlarged head 33 of a swivel-pin or eye 31 is accommodated. A spring 21 normally presses the member 10, 11 together. A ring, link &c. is connected to the hook by pressing it between divergent lips 23, 24 against the action of the spring.
Patent GB-829452-A (GB)
Title: Attachments for bookcases and the like
Inventor: HERITAGE ROBERT
IPC: A47B81/00
Filed: 1957-07-15
Abstract: 829,452. Shelves; furniture combinations. BEAVER & TAPLEY Ltd. July 10, 1958 [July 15, 1957], No. 22372/57. Classes 52(1) and 52(3) A device for closing the gap between the tops of the ends of two cabinets, book cases or the like a when they are angularly disposed relatively comprises a body part 1 with vertical sides 2, mouldings 3 providing lateral projections which rest on said tops and a rod 4 to prevent the device tilting rearwardly by engaging the adjacent ends of the bookcases.
Patent GB-1126794-A (GB)
Title: Precision thermal radiation detector
IPC: G01K7/36
Filed: 1966-05-19
Abstract: 1,126,794. Thermal radiation detector, measuring temperature electrically. V. M. LUBE, V.S. POSTNIKOV, J.S. BALASHOV, V.V. VOROBZHANSKY, P.E. TISHANINOV and J.D. KHARIZMAN. May 19, 1966, No.22409/66. Headings G1A and G1N. In a temperature measurement, thermal radiation is received upon a magneto-strictive ferrite rod which has a high temperature coefficient of resonant frequency and which determines the oscillation frequency of a valve or transistor oscillator, which frequency on being compared with that of a standard quartz oscillator provides a measure of temperature. The rod is supported at its middle point by knife edges inside an inductance coil.
Patent GB-930622-A (GB)
Title: A loading device for hauling loads by means of cargo booms
IPC: B66C23/60
Filed: 1961-06-21
Abstract: 930,622. Hauling loads between booms. LICENTIA PATENT - VERWALTUNGS. G.m.b.H. June 21, 1961 [Aug. 3, 1960], No. 22442/61. Class 78 (4). Three cargo booms 17, 18, 22 are provided with cargo falls 20, 21, 25, 24 arranged so that loads can be hauled between the inner boom 18 and either of the outer booms 17, 22. In the arrangement illustrated the falls 21, 25 on the nner boom terminate in pulleys over which pass the falls 20, 24 on the outer booms. A doubleirum winch 19 operates the tackle on one pair of booms and a double-drum winch 23 the tackle on the other pair.
Patent GB-1005854-A (GB)
Title: A mass spectrometer tube
IPC: H01J49/34
Filed: 1962-06-12
Abstract: 1,005,854. Mass spectrometers. LEYBOLDHOLDING A.G. June 12, 1962 [June 15, 1961], No. 22468/62. Heading H1D. In a radio-frequency mass spectrometer comprising a series of ion accelerating mass separating grids 9 to 19 to which the radiofrequency is applied, tubular screening elements-the anode 410 of an electron stream ion source and the element 812-prevent non- axial ions from leaving the ion source 310-410 or ions diverted outside the separating system from reaching the ion collector 810, Screen grids are provided at 5 and 6, a retarding grid at 7 and the ion source anode has gridded apertures 414, 415. The cathode 310 is surrounded by a cylinder 311 which has a gridded base 312. In another embodiment the cathode is a hairpin type with its point projecting through an opening in a screen electrode and the screening cylinder 813 forming part of the ion collector screening element 812 extends only into the region of the final separating grid 19.
Patent GB-465815-A (GB)
Title: Improvements in and relating to methods of regulating transformer devices working with grid-controlled vapour or gas discharge gaps
IPC: H02M1/04
Filed: 1935-08-09
Abstract: 465,815. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 9, 1935, No. 22531. Void. Convention date, Aug. 9, 1934. [Class 38 (ii)] Comprises a converting arrangement having tap-changing mechanism associated with the transformer for voltage regulation in which grid control is employed for blocking during transition from one tap to the next. In the form shown in Fig. 1, an additional tap-changing mechanism 7, 9, 11 is provided for each phase and connected to an auxiliary anode 26, 28, 30 which carry the load current when the main anodes are blocked for tap changing. In a modification of this, two grid controlled main anodes are provided for each phase and anode chokes are employed to ensure parallel operation. In the form shown in Fig. 2, the grid control is arranged so that the valves 30-35 are in two groups of three 30, 32, 34 and 31, 33, 35, one group of which is blocked while the tap-changing mechanism of the other group is adjusted. The two tap-changing mechanisms and the switches 121, 12<11> for blocking the valve groups may be interlocked to operate in sequence. In a modification of this, one valve is blocked at a time for tap changing. The Specification refers to automatic regulation but gives no detailed description.