baber/WOPTO huggingface dataset:
Patent GB-230632-A (GB)
Title: Improvements appertaining to mechanism for screening or sifting coke, coal or like granulated substances
IPC: B07B1/22
Filed: 1924-03-22
Abstract: 230,632. Drakes, Ltd., Walker, A. B., and Walker, A. March 22, 1924. Fixed sieves; rotary sieves.-In screens of the kind described in Specification 8439/14, the spaces a between the fingers 2 are made adjustable in width by the provision of a second plate provided with corresponding fingers 3 and spaces b and movable laterally over the first plate. The plates may be moved laterally by hand and be locked by studs 4 and lock-nuts. Alternatively, the actuating means may consist of a nut and screw. The device may be applied to flat or cylindrical sieves.
Patent GB-526040-A (GB)
Title: Improvements in and relating to collapsible boats
IPC: B63B7/08
Filed: 1939-03-06
Abstract: 526,040. Collapsable boats. PROSKAUER, O. March 6, 1939, No. 7330. [Classes 113 (i) and 113 (ii)] A flat-bottomed inflatable boat 15, 17 is provided with a fin-like keel 10 of rubber or rubberized fabric supported at one or both ends by a vertical rod 12. The latter passes through a tubular rubber sleeve 11 and is held upright by a pair of vertical parallel or divergent rubber wings 13 secured to the tube 15 and serving as a protection against waves. The keel 10 may be triangular, as shown, or rectangular, whilst the lower end of the rod 12 may be formed as a helical spring or otherwise made resilient so as to yield over stones or the like.
Patent GB-924034-A (GB)
Title: Thiophosphoric acid esters
IPC: A01N57/14
Filed: 1961-02-28
Abstract: The invention comprises compounds of the formula: Ar-O-P(S)(OR)(SR1) in which Ar is an aryl radical which may be substituted and R and R1 are alkyl radicals containing up to four carbon atoms.  They may be obtained by successively reacting O-aryl thionophosphoric acid dihalides with approximately stoichiometric amounts of an appropriate alcoholate, preferably an alkali metal alcoholate, and an appropriate mercaptan the reaction with the mercaptan being carried out in the presence of an acid-binding agent.  The process is preferably carried out in an inert organic solvent such as benzene, an alcohol, or a liquid ketone.  The aryl radical (Ar) in the products is preferably a phenyl radical substituted by one or more members selected from: alkyl radicals containing up to 4 carbon atoms, halogen atoms, nitro groups, cyano groups, alkylthio groups, alkylsulphoxy groups and alkylsulphonyl groups.  Examples are given and several products of the above given formula are specified.  The products have insecticidal properties (see Group VI).ALSO:An insecticidal composition comprises, in conjunction with a solid or liquid diluent or carrier, a dithiophosphoric acid ester of the formula Ar.O-P(S)(OR)(SR1) in which Ar is an aryl radical which may be substituted and R and R1 are alkyl radicals containing up to 4 carbon atoms (see Group IV (b)).  The radical Ar is preferably a phenyl radical substituted by one or more members selected from:  alkyl radicals containing up to 4 carbon atoms, halogen atoms, nitro groups, cyano groups, alkylthio groups, alkyl sulphoxy groups and alkylsulphonyl groups. Specified carriers or diluents are talc, chalk, bentonite, clay, water (if desired with an emulsifier e.g. benzyl hydroxy polyglycol ethers), methanol or ethanol, acetone, methyl ethyl ketone and liquid hydrocarbons, known insecticides and/or fertilizers may be present. p
Patent GB-1439564-A (GB)
Title: Preheating of metal scrap
IPC: C21C5/56
Filed: 1974-02-19
Abstract: 1439564 Preheating scrap metal H J VENETTA 19 Feb 1974 [26 Feb 1973] 7536/74 Heading F4B Apparatus for preheating scrap metal comprises a weighing hopper 11 discharging on to a shaker feed trough 12 in a continuous furnace 9 heated by roof burners 16 discharging into charging buckets 26 carried by a car 30. The burners may be angled slightly towards a stack 23 and may be automatically controlled to cut down to a minimum after a given time. The buckets may be replaced by a shaker feed car (Figs. 4 and 5).
Patent GB-667731-A (GB)
Title: Improvements in or relating to machines for cutting sheet material
IPC: C14B5/00
Filed: 1950-03-27
Abstract: 667,731. Retractive switches. BRITISH UNITED SHOE MACHINERY CO., Ltd. 'March 27, 1950. [March 29, 1949] No. 7551/50. Class 38 (v). [Also in Group VIII] In order to initiate the power operation of a cutting machine (see Group VIII), two electric switches which are arranged in spaced relation on the swinging press-arm 16 of the machine must be closed simultaneously by the use of both hands of the operator. One switch 314 is of push-button type and controlled by a hand grip 322 on a lever 316 pivoted in a recess 320 in the handle 22 by means of which the arm 16 is swung into and out of operative position. The other switch comprises a horizontal plunger 326 which has a hand knob 330 at each end and a central collar 336 slidable with the plunger in a fixed sleeve 338. Two frustoconical members 340 are loosely mounted on the plunger on opposite sides of the sleeve 338 and are forced against the latter by springs 342. The members 340 normally lie adjacent to leaf springs 344 co-operating with switch push buttons 346, and pressure on either of the hand knobs 330 causes outward movement of the member 340 at the opposite end of the plunger and closure of the corresponding switch.
Patent GB-228386-A (GB)
Title: Improvements relating to the glazing of roofs
IPC: E04D3/08
Filed: 1924-03-25
Abstract: 228,386. Jones, M. B., and Glover & Co., Ltd., W. T. March 25, 1924. Glazing roofs.-F'lat rectangular plates a are placed between the glazing-bar c and the purlin or girder, and are formed with grooves a<2> across their undersurfaces to facilitate escape of moisture, and with lugs a<1> to support wind-guards d. The. plates are secured to the glazing bars and the girders or purlins respectively by bolts or screws. Specification 137,678 is referred to.
Patent GB-411994-A (GB)
Title: Improvements in or relating to apparatus for unwinding thread from bobbins
IPC: B65H59/04
Filed: 1933-03-13
Abstract: 411,994. Controlling delivery of thread from bobbins. GRIBOJEDOFF, N., 14, Rue de Tilsitt, Paris. March 13, 1933, Nos. 7604 and 7605. Convention dates, March 11, 1932 and March 29, 1932. [Class 120 (ii).] In apparatus for unwinding thread from bobbins, wherein a flyer rotates freely about the axis of a bobbin and the thread passes from the bobbin through the flyer eye and a guide arranged in line with the axis of the bobbin to a drawing-off device, the bobbin holder 3 and the flyer 8, Fig. 1, are arranged so that they rotate freely and independently of each other in opposite directions under the pull of the thread. To facilitate starting a resilient auxiliary guide 14 is provided, the thread being initially passed, as shown in dotted lines, from the eye 10 of the flyer and over the guide 14, which yields to prevent any abnormal tension when starting. When, during its rotation, the eye 10 passes the guide 14, the thread slips off the guide and automatically assumes the normal path shown in full lines. Preferably a brake for the unwinding bobbin is provided, as shown in Fig. 2, two flyer arms 22 being provided and connected to a brake disc 23 under control of a spring 24 so that during normal winding the brake is held inoperative but is applied in the event of thread breakage. The spring 24 is so connected to a collar 25 fixed to the spindle, and to the brake disc 23 that during braking the bobbin tends to unwind it and thus to increase the braking effort.
Patent GB-1492784-A (GB)
Title: Vehicle brakes
IPC: F16D55/224
Filed: 1974-02-19
Abstract: 1492784 Spot-type disc brakes; slack-adjusting GIRLING Ltd 7 Feb 1975 [19 Feb 1974] 7609/74 Heading F2E An automatic adjuster for a vehicle brake comprises an extensible strut having two coaxial parts 12, 13, in screw-threaded engagement, the inner part 13 being non-rotatable and the outer part being effectively axially fixed, a driving sleeve 14 slidable on the outer part 12 of the strut and connected thereto through a one-way drive 15, and at least one slot 19 on the driving sleeve 14 adapted to co-operate with a pin 20, the adjuster being provided with a reset member 23 which is movable axially to push the driving sleeve 14 clear of the pin 20, thus enabling the outer part 12 of the strut to be rotated in the strut-shortening direction. The expander shown in the Figure is adapted for inclusion in the floating caliper of a railway brake, and includes parts 4, 7 of a sleeve having complementary helical formations separated by a split roller bearing 8. In operation, sleeve part 7 is rotated by a headed boss 9, so the second sleeve part 4 is advanced towards a brake disc (not shown), taking with it the strut 12, 13, whose inner part 13 engages a friction pad (not shown). The driving sleeve 14 is not rotated so long as pin 20 does not move more than one slot length, but when lining wear involves excessive rotation of sleeve part 7, pin 20 rotates driving sleeve 14 slightly, but driving sleeve 14 does not rotate strut part 12. On brake release, however, sleeve 14 does rotate strut part 12 through the oneway drive 15, so strut part 13 is moved outwards by the mutual threading to take up the slack. For re-setting, the cup-shaped member 23 is pushed in to disengage driving sleeve 14 from pin 20 against spring pressure 17, whereupon strut part 12 can be rotated in the reverse direction by a pin 26 forming part of the re-set member.
Patent GB-1154104-A (GB)
Title: Process for Isolating Elastomers.
Inventor: SCHNOERING HILDEGARD
IPC: C08C2/06
Filed: 1967-02-17
Abstract: 1,154,104. Isolating elastomers. FARBENFABRIKEN BAYER A.G. 17 Feb., 1967 [31 March, 19661, No. 7691/67. Heading C3P. Elastomers are isolated from their solution in organic solvents by introducing said solution at the bottom end of a column through which is passed an aqueous medium effecting a fine distribution of said solution and separating at the head of the column aqueous medium, elastomer particles, steam, and azeotropically distilling organic solvent, in which procedure the temperature at the bottom end of the column is above the boiling point of said solvent or its azeotropic mixture and the temperature at the head of the column is below the temperature at the bottom of the column and is approximately equal to the boiling temperature of the azeotropic mixture. The solutions are those obtained at the end of polymerization and after inactivation of the catalyst. The solution is suitably introduced together with steam. Elastomers mentioned are homo- and copolymers of isoprene, butadiene, chlorobutadiene, and piperylene, rubbery ethylene copolymers, rubbery polyurethane prepolymers and silicone rubbers. The process may be carried out continuously and a flow sheet for such a process is,illustrated. In the example a solution of cis- 1 ,4-polyisoprene in benzene is obtained by polymerizing isoprene using a TiCl 4 /Al(C 2 H 5 ) 3  catalyst, inactivating the catalyst with methanol, and adding a phenolic stabilizer and stearic acid, and the elastomer isolated in accordance with the process described above.
Patent GB-1281842-A (GB)
Title: Gas turbine engines
Inventor: BUTLER LAWRENCE
IPC: F01D25/18
Filed: 1970-02-18
Abstract: 1281842 Gas turbine engines LEYLAND GAS TURBINES Ltd 19 April 1971 [18 Feb 1970] 7701/70 Heading F1G The invention relates to a regenerative type gas turbine engine which comprises an oil reservoir which becomes filled with oil during operation of the engine, the oil being utilized after engine shut-down to cool the shaft bearings. The engine shown comprises a turbine rotor 1 mounted on a shaft 2 which is supported in bearings 3, 4 within a bearing housing 5. Oil is supplied to the bearings through ducts 6, 7, 8, 9, the oil returning through ducts 10, 11, 12 to the auxiliary gearbox 13 and thence through outlet 14 to the sump. A stepped cylindrical housing 15 is disposed around the bearing housing 5 and defines an annular passage 19 therebetween to which oil passes from duct 7 through duct 8A. The larger part of the housing 15 is formed with a chordal wall 20 which defines an oil reservoir 21 having an overflow orifice 23. Oil passes through the annular passage 19, through the duct 22 to the reservoir 21 which thus becomes filled during engine operation. When the engine is shut down oil drains back from the reservoir 21 to the bearings 3, 4 which are thus cooled and overheating is thereby prevented. In a second embodiment Fig.2, a non-return valve 24 is disposed in the duct 8A whereby in operation oil may pass to the annular passage 19 and thus to the reservoir 21 but which upon engine shut-down prevents oil passing back from the reservoir to the bearings, but the residual heat passes to the oil in the reservoir and is dissipated by convection whereby the shaft bearings are prevented from overheating.
Patent GB-1375044-A (GB)
IPC: B41K1/36
Filed: 1972-03-22
Abstract: 1375044 Time and date printing machines E WILKINSON 22 March 1972 [25 March 1971] 7797/71 Addition to 1152574 Heading B6D The machine as described in the parent Specification 1,152,574 is modified to prevent removal of a card inserted into the shoot of the machine by providing the rollers 23a with sharp toothed wheels 23b which engage and perforate the card which is torn if attempt is made to withdraw the card.
Patent GB-866811-A (GB)
Title: Improvements in or relating to power transmission systems
IPC: B60K5/00
Filed: 1958-03-11
Abstract: 866,811. Motor vehicle driving gear. BAYERISCHE MOTOREN WERKE A.G. March 11, 1958 [March 16, 1957], No. 7853/58. Class 79(2). In a power transmission system for the independently sprung wheels 6 of a motor vehicle the universal joints 12 at the ends of half-shafts 8 are axially resilient so that the use of telescopic splines is avoided. An engine 3 and differential unit 5 which are yieldably mounted on the vehicle frame 1 by elements 2 has power output shafts 10 connected to the wheels 6 through half-shafts 8 having rubber ring joints 12 comprising three-arm fastening spiders 9 secured to metal bushes which are preferably vulcanised in the rubber ring.
Patent GB-217649-A (GB)
Title: Automatic poultry feeder
IPC: A01K39/012
Filed: 1923-03-20
Abstract: 217,649. Goffin, S. F. H. March 20, 1923. Feeding-appliances for animals.-A poultry feeder comprises a semi-cylindrical shell C of galvanized iron or other material containing an inverted cone-shaped hopper A having below its outlet B a small shelf E from which the corn &c. falls on to a semi-conical spreader 0 having side shields L. The corn &c. is pushed off the shelf E by a cranked rod V, the lower end of which projects into the litter on the floor D so that when a fowl enters through the hole F and scratches in the litter the lower and upper cranked ends of the rod V are moved rearwardly of the fowl and the food is swept off the shelf E and falls against the wall of the shell C behind the fowl, and is covered with litter, whereby on turning round and continuing to scratch, the fowl uncovers the previously dislodged corn &c. In a modification, the shell is square shaped and the corn is delivered from two V-shaped hoppers A<1>, Fig. 4, by means of sloping surfaces A<2> on to small shelves E, the upper end of the rod V being cranked to engage a loop Y in a rod W mounted to reciprocate in bearings. The ends of the rod W over the shelves E are turned oppositely up and down and scrape the food off the shelves alternately on to ledges N which scatter it.
Patent GB-461781-A (GB)
Title: Improvements in or relating to take-up motions for looms
IPC: D03D51/00
Filed: 1936-03-17
Abstract: 461,781. Loom take - up motions. REIFENBERG, H. March 17, 1936, No. 7981. [Class 142 (ii)] The speed of a take-up motion is varied periodically for patterning purposes by a spring controlled lever 14 having an adjustable link connection 12 with a lever 10 that is rocked, through an adjustable thrust member 8, by a cam 6 driven by a shaft 1 and exchangeable gears 3.
Patent GB-1130564-A (GB)
Title: Atomic resonance apparatus
Inventor: DAVIDOVITS PAUL
IPC: H01S1/06
Filed: 1965-10-01
Abstract: 1,130,564. Atomic resonance. VARIAN ASSOCIATES. 1 Oct., 1965 [5 Oct., 1964 (2)], No. 8033/68. Divided out of 1,130,563. Heading G6P. [Also in Division H1] In an atomic resonance apparatus including, an assemblage of gaseous atoms in a cavity resonator the cavity resonator is so constructed, dimensioned and arranged that its resonance frequency varies with temperature in a sense opposite to that in which the resonance frequency of the atoms varies with temperature. A rubidium maser comprises a cavity resonator having a hollow cylindrical stainless steel main body 21 containing Rb<SP>87</SP> and filled with a nitrogen buffer gas. The cavity is closed at one end by closing plate assembly 22 which includes a sealing membrane 24 which is deformable to tune the cavity. The other end wall of the cavity is defined by a perforated plate 26 which is transparent to pumping radiation from a Rb<SP>87</SP> lamp (not shown) and the main body 21 is sealed off by glass window 27. A hollow cylindrical envelope 32 is arranged as shown to displace Rb<SP>87</SP> gas which would occupy the space between window 27 and plate 26 and absorb the pumping radiation. In order to make the frequency of the maser insensitive to changes in temperature of the environment the temperature coefficient of the cavity resonator is arranged to be opposite to that of the buffer gas, nitrogen so that they compensate each other providing a stable frequency of the maser, Fig. 3 (not shown).
Patent GB-576758-A (GB)
Title: Process for the manufacture of a derivative of ª‡,ª†-dihydroxy ª‰,ª‰-dimethyl-butyric acid
IPC: C07C233/16
Filed: 1944-04-28
Abstract: d(+)-a d -Dihydroxy-b b -dimethylbutyric acid-31-41-dihydroxybutylamide is prepared by condensing d(-)-a -hydroxy-b b -dimethyl-g -butyric acid lactone with 3 : 4-dihydroxybutylamine, or its dimethyl-methylene derivative, and, if necessary, subjecting the condensation product to a gentle acid hydrolysis.  In examples: (1) 3 : 4-dihydroxybutylamine, in methanol freed from water and carbon dioxide, is treated at room temperature with dry d(-)-a -hydroxy-b b -dimethylbutyric acid lactone and the solution is stoppered and set aside for 24 hours, or refluxed for 1 hour prior to isolating the product from the residue; (2) dl-dimethylmethylene-3 : 4-dihydroxybutylamine and d(-)-a -hydroxy-b b -dimethyl-g -butyric acid lactone are refluxed together in anhydrous benzene for 1 hour, excluding moisture, and the crude condensation product is set aside for 30 mins. in N/10 sulphuric acid solution at 18 DEG  C. to effect fusion of acetone, prior to neutralization with barium carbonate and subsequent isolation of the product by concentrating the filtrate in vacuo.  3 : 4 - (Dimethyl - methylene - dihydroxy) - butyl - amine is prepared by converting d-hydroxy-g -valeric acid lactone to 4 : 5-dihydroxyvaleric acid amide by treatment with a large excess of methanol saturated at 0 DEG C. with dry ammonia, and a solution of this substance in acetone is made just acid to Congo red by introducing dry hydrogen chloride, being then set aside for 1 day and treated with solid potassium carbonate, and the product is isolated by evaporating the filtrate. Specification 568,355 is referred to.
Patent GB-1045354-A (GB)
Title: Machine for forming and applying box clip
Inventor: KAMPER ANDREW MATHIS
IPC: B27F7/15
Filed: 1964-02-26
Abstract: 1,045,354. Punching. NO NAIL BOXES Ltd. May 26, 1965 [Feb. 26, 1964], No. 8073/64. Heading B3W. [Also in Divisions B4, B8 and F2] A machine for forming clips from a metal strip and for attaching them to the adjoining marginal portions of boards assembled edgeto-edge to form a foldable box blank (see Division B8), comprises a feeding means for advancing the strip intermittently and a press adapted during each pause of the strip to form teeth in an end portion of the strip and then sever and trim such portion into a boxclip, the latter then being pressed so as to force the teeth through the marginal portion of the boards and clench them over on the opposite side of the boards. The machine comprises main transverse supports 24, 25 on which are slidably mounted a pair of frames 81 each carrying a punch assembly 51 and a stripfeed assembly 52; the spacing between each combined assembly may be adjusted by means of rack-andpinion devices 43, 45, Fig. 7 (not shown). The punch assembly includes a number of punches 77, Fig. 6, for piercing the strip in order to form prongs 215 on the box-clip and a punch 76 for severing and trimming the clip and for driving it into the respective board. The punches are mounted in a holder 73 which is carried by a slide 65, the latter being raised and lowered by an eccentric 61 keyed to a shaft 35. The strip feed assembly includes a pivoted gripper 119 and an anvil 127, both parts being mounted on a slide 120 which is reciprocable on guide rails 123. The gripper is urged into contact with the strip by means of an adjustable screw 149 carried by a slide 129 which is reciprocated by means of a lever mechanism 138, 142, 144 and 146 the lever 144 being rocked by means of an eccentric 135 rotated by a shaft 27. The prongs 215 are clinched over, after being driven through the board, by means of blocks 55, 56 secured to a joist 26 movable up-and-down in slides 112 by means of connections 95, 96 actuated by eccentrics which are keyed to the shaft 35. In operation with a strip 116 of metal already in position as shown in Fig. 6, a pair of boards is placed with their edges to be joined centrally over the punch 76 and by operating a switch the shaft 35 is clutched to a fly-wheel 34 rotated by an electric motor. The slide 65 is then driven upward so as to cause the punch 76 to sever the end clip from the strip and drive it through the boards, the punches 77 simultaneously piercing the strip to form the prongs of the next clip. The clinching blocks are brought into contact with the boards just prior to the prongs passing through the latter so that the prongs are clinched over. After the shaft 35 has nearly completed one revolution, an abutment thereon engages with a pawl which through a linkage (see Division F2) engage a clutch on the shaft 27 so that the feed assembly moves the strip forward in readiness for the next punching operation.
Patent GB-1079683-A (GB)
Title: Carrier bags
Inventor: JENKINS DAVID BERNARD
IPC: B65D33/06
Filed: 1963-02-28
Abstract: 1,079,683. Carrier bags. E. S. & A. ROBINSON Ltd. Feb. 24, 1964 [Feb. 28, 1963], No. 8078/63. Heading A4G. A carrier bag 1, which may have stiffeners 3, has two detatchable handles 6 with end hooks 7 passing through holes 11 in the upper front and back margins of the bag. The hooks are formed as flat feet on the circular end sections 6 of the flat plastic handles 5 and have spurs 9 pressing on the bag side or a triangular portion 10 pushed out of hole 11.
Patent GB-448652-A (GB)
Title: Improvements in or relating to the starting of internal combustion engines
IPC: F01L13/00
Filed: 1935-03-15
Abstract: 448,652. Internal-combustion-engine locomotives. MURRAY, F. F., 123, University Place, Pittsburg, U.S.A. March 15, 1935, No. 8166. Drawings to Specification. [Class 79 (i)] [See also Groups XXVII and XII] For starting a Diesel or other engine, and particularly a locomotive engine permanently connected to its load, combustible mixture is burned in an auxiliary pumping chamber to exert its expansive force in the main combustion chamber, the pumping mechanism being actuated by a prime mover in opposition to the expansive force of the combustion of the mixture. A locomotive is described having six pairs of driving wheels driven by two Diesel engines each provided with a starting compressor actuated by a prime mover. Each Diesel engine drives one set of six wheels through bevel and spur gearing, each set being coupled together by side rods, or all the wheels of both sets being thus coupled.