baber/WOPTO huggingface dataset:
Patent GB-764275-A (GB)
Title: A screen with two oppositely oscillating masses
IPC: B07B1/28
Filed: 1955-02-02
Abstract: 764,275. Sifting apparatus. KLOCKNERHUMBOLDT-DEUTZ AKT.-GES. Feb. 2, 1955 [Feb. 10, 1954], 3087/55. Class 117. Two oppositely oscillating masses constituted by a screen casing 1 and a counterframe 5 are supported on a base frame 2 and guided by leaf springs or links 3 and 4 respectively, and the centres of gravity S<SP>1</SP>, S<SP>2</SP> of the masses move along a common straight line G. The springs or links 3 and 4 are at right angles to the line G. Springs 25 and 37, Fig. 2 are arranged between each mass and the base frame and lie in a plane passing through S<SP>1</SP> and S<SP>2</SP>, and their elasticity is so chosen that the sum of the forces exerted by them is the same at each instant. A pair of springs 25 and 37, is mounted at each side of the base frame on a common cross-bar 44 and each spring consists of two rubber blocks between which are clamped guide links 28 and 45 secured to the counterframe and screen casing respectively. Spindles 20 are adjustably mounted on the counterframe and their reduced ends pass through spring plates 24 which act upon the springs 25. In similar fashion spindles 32 on the screen casing act upon the springs 37. A driving shaft 7, Fig. 4 in bearings 6 is supported on the counter frame, and includes eccentrics 12 from which rods 14 extend to engage, at their other ends, brackets 16 of the screen casing through relatively rigid rubber springs 15. The shaft is driven by a motor 10 through belting 9 and a pulley 8, and a disc 41 of the same weight as the pulley is mounted at the opposite end of the shaft. The latter is cranked at 42 to balance the centrifugal effect of the eccentric drive. Oscillations are thereby imparted to the screen casing and counter frame which are displaced 180 degrees in phase, and the amplitudes of the oscillations of the two masses are inversely proportional to the weight of the masses. The ratio between the strengths of the springs 25 and 37 is arranged to be equal to the ratio between the total weights of the counterframe and screen casing respectively. Fig. 10 shows a resonating screen comprising a screen casing 50 guided on a base frame 52 by leaf springs 51, and a counterframe 53 is connected to the base frame by rigid links 54 provided at their ends with rubber bearings. Openings 55 in the counterframe accommodate oscillating springs 56 acting between the counterframe and a bracket 57 of the screen casing, and a connecting rod 61 engages two brackets on the screen casing through a loose coupling 62. The rod is driven by a crank shaft 63 supported on the counterframe and driven by an electric motor 64 on the base frame. The parts 50, 53, move along a line G3 and rubber springs 66, 67 are arranged each side of the base frame and act on those parts in a similar manner to that described. If the oscillating masses are suspended from a structure e.g. a ceiling structure, such springs as 25, 37 or 66, 67 are in tension and may comprise spiral springs.
Patent GB-1472383-A (GB)
Title: Bromination of diphenyl oxide
IPC: C07C41/22
Filed: 1976-01-23
Abstract: 1472383 Bromination of diphenyl oxide ISC CHEMICALS Ltd 23 Jan 1976 [24 Jan 1975] 3123/75 Heading C2C The invention comprises a process for the bromination of diphenyl oxide to give a product containing at least 6 bromine atoms per mole wherein the diphenyloxide is reacted with bromine in the presence of aluminium bromide and wherein at least the final stages of the bromination reaction are carried out in the presence of at least 5 moles of dibromomethane per mole of diphenyl oxide.
Patent GB-1254174-A (GB)
Title: Device for controlling the level of a vehicle
Inventor: CLARENBACH WILLI
IPC: B60G17/056
Filed: 1969-01-20
Abstract: 1,254,174. Vehicle level-control systems. V. LANGEN, [trading as LANGEN & CO.]. 20 Jan., 1969, No. 3131/69. Heading B7D. [Also in Division F2]  In a vehicle level-control system comprising a valve 6 operated by a linkage 7 in response to variation of the distance between the sprung and unsprung masses of the vehicle in order to connect a pressure chamber 3 in a strut 4 to either a source 8 of pressure fluid or to a reservoir 9, or to block said connections when the vehicle is at the desired level, the valve 6 comprises a screw threaded spool 13 disposed in a bore 11 having a pin 22 engaging the screw thread 21 on the spool so that rotation of the valve spool 13 by the linkage 7 causes axial movement thereof to effect said connections. The valve spool 13 has a reduced diameter portion 16 adjacent an inlet P from the pressure source 8, a second reduced diameter portion 17 adjacent an exhaust T to the reservoir 9, and a land 15 adjacent an annular groove 18 in the bore 11 connected to the strut 4 via an outlet 19. When the vehicle is at the desired level the land 15 blocks the groove 18 from the bore 11. The flow of pressure fluid through the valve 6 is restricted by two further lands 19, 20 on the spool 13. 'In a second embodiment (Fig. 3) the spool has an axially fixed part (26) connected to the linkage and rotatably connected to an axially movable part (25) constructed as described above. In a third embodiment (Fig. 4) the bore has a screw threaded enlarged portion (34) adjacent the linkage 7 and a screw threaded guide member (36) is received in this portion (34) and is selectively rotatable by a second linkage (39), the guide member (36) carrying a pin (22<SP>1</SP>) which engages the screw thread on the spool 13, and the pitch of the two screw threads being different. Thus the vehicle level can be selectively predetermined. In a fourth embodiment (Fig. 5) a guide member (42) is axially fixed in an enlarged portion (40) of the bore 11 and carries a pin (22) co-operating with the screw threaded spool.
Patent GB-707237-A (GB)
Title: Improvements relating to ball bearing castors
Inventor: PARRY WILLIAM JAMES
IPC: B60B33/00
Filed: 1951-02-09
Abstract: 707,237. Castors. PHILLIPS, Ltd., A. Feb. 8, 1952 [Feb, 9, 1951], No. 3151/51 Class 52(1) A castor for tubular metal furniture has a socket 7b ir which a plug 5 in the end of the leg of the article is engaged, the end of the plug being flat and resting on bal bearings 10 in a race cut in the bottom of the socket. The parts are secured by a grub screw 11 accommodated in a groove in the plug and a grease nipple 12 can. be provided.
Patent GB-764637-A (GB)
Title: Tube assembling device
IPC: F16B7/04
Filed: 1955-02-03
Abstract: 764,637. Jointing by stamping; bolted joints. LEGRAND, P. Feb. 3, 1955 [Feb. 9, 1954; Jan. 25, 1955], No. 3235/53. Class 83 (4). [Also in Group XXVIII] A method of providing a tube with a fixedly secured transverse partition for enabling said tube to be attached to any desired article (see Group XXVIII), comprises inserting an axially threaded dish-shaped washer in the tube by means of a threaded member, axially displacing the threaded member and washer by stress-multiplying means said axial displacement being resisted by abutment means to prevent axial displacement of the edge of the washer relative to the tube whereby said washer extends radially and forms a peripheral groove in said tube and remains permanently embedded therein. The washer 1 is embedded by a device comprising an apertured supporting plate 20 fixed to a table 22 and a bolt 23 on which is screwed a nut 25. In operation the bolt is passed through the plate 20 and a smooth-bored conical washer 5 is placed on the bolt before the threaded washer 1 is screwed on the bolt (Fig. 2). The washers are arranged edge to edge. The tube 7 is placed over the washers until it engages the plate 20 and is supported by a seating 28. By holding the bolt head and rotating the nut 25 the washers are radially expanded to form the joint shown in Fig. 4. The washers may be secured in a composite tube to effect a tube joint as shown in Fig. 12 (see Group XXVIII). In another embodiment the washers are deformed by means of a hand lever 29 pivoted on the table 22 the lever arm 31 engaging under the head 32 of the partly threaded member 24 (Fig. 13). Alternatively the lever is pivoted on the threaded member and bears on a cam fixed to the support 20. In a further embodiment the smooth bored washer is dispensed with and the washer 1 engages an annular abutment 34 on the support 20 (Fig. 14). The washers 1 and 5 may be secured in a tube whilst the tube is engaged on a hole in a wooden standard 39 to effect a joint therebetween as shown in Fig. 17.
Patent GB-1244289-A (GB)
Title: A method of tightening or releasing bolts
IPC: H05B3/00
Filed: 1970-01-22
Abstract: 1,244,289. Bolt or stud heating. SIEMENS A.G. 22 Jan., 1970 [23 Jan., 1969], No. 3263/70. Heading H5H. Tightening or releasing of a rod or bolt 1 is facilitated by passing a current through the rod 1 by spaced electrodes 7, 8 to heat and elongate the rod. As shown, a threaded rod securing flanges 2, 3 together has nuts 1d at its ends 1b and the electrodes 7, 8 are secured in contact with end faces 9 and 10 of the rod 1 by screws 11, 12. The space 5 between the shank la of the rod and the bore 4 is filled with a good thermal conductor e.g. graphite. An insulating spacer 15 between nut 1d and flange 2 ensures that current passes predominantly through the rod 1. In Fig. 2 (not shown) a set stud is screwed into a blind bore in a lower flange, its other end being provided with a nut id as in Fig. 1. Current is supplied to the stud by an electrode secured to the end carrying the nut in the manner above described and by a similar electrode secured to the lower flange in alignment with the blind bore.
Patent GB-104534-A (GB)
Title: Improvements in Petrol Carburetters.
Inventor: ADAM JOHN CHRISTIE
IPC: F02M9/127
Filed: 1916-03-06
Abstract: 104,534. Adam, J. C. March 6, 1916. Spray carburettors.-The passage around the nozzle 4 is varied by a choke-tube consisting of a number of annular plates 11 the apertures in which are of gradually increasing diameter. The plates are separated by washers 13 and are secured to a piston 9 by bolts 12 and a ring 14. The spaces between the upper plates are preferably narrower than those between the lower plates. Mixture passes to the engine by way of the space 22 and outlet 8. The piston 9 may be actuated manually, or by suction acting through holes 23. A sleeve 10 may be moved simultaneously with the choketube to maintain the outlet area therefrom constant. In a modification, the sleeve extends across the space 22, is ported, and carries the fulcrum of the lever which actuates the plates 11, so that both the sleeve and the plates may be moved together to maintain the outlet opening constant. In a further modification, the smaller diameter of the choke-tube is at the bottom, air passes through the rings before reaching the nozzle, and the fuel may be cut off in the closed position of the choketube by a plate situated above the nozzle.
Patent GB-540970-A (GB)
Title: Photographic toning processes
IPC: G03C7/26
Filed: 1940-02-22
Abstract: 540,970. Photographic toning processes. TULL, A. G. Feb. 22, 1940, No. 3339. [Class 98 (ii)] The residual silver halide image remaining after a silver halide (other than silver chloride) emulsion layer has been exposed and developed is toned without removal of the developed silver image by conversion into a silver halide complex which can be converted into an intermediate product in the toning process or into a complex of the intermediate product having substantially similar properties. Complexforming substances are thiourea, guanidine or its salts, and cysteine, and may be used in a bath which also contains the reagent for producing the intermediate product, or the reagent may be applied in a following bath. Residual silver bromide may be converted by a bath containing potassium ferrocyanide and thiourea to silver ferrocyanide, which may be converted into insoluble ferrocyanides by means of metal salts (chemical toning), or may be used as a mordant for dye-toning, particularly with acid dyes. In an example an exposed and developed silver bromide emulsion is washed and treated with a bath containing thiourea and potassium ferrocyanide. The image may then be toned (a) to Prussian Blue by treatment in a bath containing ferric nitrate, nitric acid, and potassium bromide (silver salts may be fixed out and silver removed with Farmer's Reducer) ; (b) to red by the use of uranium nitrate in place of the ferric nitrate of (a) ; (c) to red by the use of nickel nitrate in place of the ferric nitrate and by further treatment with dimethyl-gloxime ; (d) to yellow by the use of lead nitrate in place of the ferric nitrate and further treatment with potassium chromate, preferably after bathing in dilute nitric acid ; (e) to yellow by the use of vanadium sulphate in place of the ferric nitrate ; and (f) to neutral grey by use of ferric nitrate, vanadium sulphate, and uranium nitrate in the bath of (a). Silver chloride and iodide emulsion layers may also be toned. Ammonium vanadate may be used in place of potassium ferrocyanide to give a complex vanadate which may be converted to yellow with a lead salt. Molybdic acid may be used to give a complex molybdate which can be converted to molybdenum ferrocyanide with potassium ferrocyanide. Potassium ferricyanide may be used to produce a complex ferricyanide. A mixed bath may be used to produce a mixed intermediate deposit, in which in some cases the different products are deposited in separate strata of the emulsion layer. The coloured image may be used for one or more component images of a multicolour record. Specification 333,361, [Class 98 (ii)], is referred to.
Patent GB-214750-A (GB)
Title: Improvements in mattresses
IPC: A47C31/02
Filed: 1923-02-05
Abstract: 214,750. Brandwein, H. G. Feb. 5,1923. Mattresses; tufting. -The two external sheets 1, 2 of a stuffed mattress are connected together at spaced intervals by strips 6, 11, wholly confined between the two sheets and fastened at their ends to the sheets as by sewing. The tufting strips 6, 11 may have their ends 12, 13 bent in opposite directions, and may be formed as loops in a long strip 5 secured by stitching 9 to the sheet 2.
Patent GB-372746-A (GB)
Title: A new and improved computing instrument
IPC: G06G1/04
Filed: 1931-02-03
Abstract: 372,746. Adding and subtracting apparatus. TALBOT, B., 659, Church Street, Pretoria, South Africa. Feb. 3, 1931, No. 3471. [Class 106 (i).] An adding and subtracting device comprises two superimposed discs provided with scales, a toothed drum which counts the rotations of one of the discs, a movable arm carrying a magnifying glass for reading the scales, a fineadjustment device and a positioning device. The two discs 2, 3 can either rotate independently or be coupled together by a screw 32. The scales are read through a magnifying glass 47 mounted on a rotatable arm 15, a hair line being provided on a window 13. A single tooth on the lower disc 3 engages a toothed drum 9 which counts the rotations of the lower disc. A member 24 is pivoted at 25 and is pressed towards the discs by a spring 23 which engages a bracket 17 fixed to the base of the device. The member 24 has slots in the form of a curve concentric with the discs and in these slots slides a block which is moved by a screw 26 against the action of a spring 29. To the block is secured a pad of rubber bearing against the lower disc 3 so that, by means of the screw 26, the position of this disc can be adjusted. The member 24 can be swung about its pivot 25 to remove the rubber pad away from the lower disc by turning. an eccentric collar 27 mounted on the member and bearing against the bracket 17. The upper disc is positioned with its zero scale mark under the hair line by a rod 18 controlled by a spring 39 and a nut 21, the pointed end of the rod entering a nick in a member 6 secured to the upper disc. To add together a number of quantities, the two discs are coupled together and rotated an amount corresponding to the first quantity, the coupling is released and the upper disc is returned to zero, recoupled and rotated an amount corresponding to the second quantity, and so on. To facilitate subtraction, one of the discs may have two scales numbered in opposite directions.
Patent GB-781686-A (GB)
Title: Improvements in or relating to friction elements
IPC: F16D69/02
Filed: 1956-02-03
Abstract: 781,686. Friction clutches. DIAMOND ALKALI CO. Feb. 3, 1956 [Feb. 7, 1955], No. 3487/56. Class 80 (2). [Also in Group XXXIV] A friction element suitable for use in clutches, comprises a siloxane resin containing friction surface having a heat-resistant thermosetting resin backing integrally bonded thereto, the expression " siloxane resin " being intended to include all heat-curable silicon containing materials characterized by alternate silicon and oxygen atoms, which materials have adhesive or binder properties and set to a solid hard heatresistant substance. The siloxane resin layer has a filler of fibrous asbestos and is integrally bonded to a metallic support through the heatresistant thermosetting resin backing, a friction surface being formed of a hard cohydrolysate of a mixture of phenyl and ethyl silicon-trichloride. Heat-resistant synthetic polymers or copolymers of the butadiene-acrylonitrile type, known commercially under the Registered Trade Mark " Hycar " together with 1-5 per cent by weight of graphite together with amounts of finely divided lead sulphate and lead oxide may be included in the composition for which six different processes of production are described. Specifications 683,912, 683,914, 691,395, 695,457 and 735,906, [all in Group IV (a)], are referred to.
Patent GB-101177-A (GB)
Title: Improvements in or relating to Pneumatic Wheels.
Inventor: GREPPI JOSE
IPC: B60B9/00
Filed: 1916-03-09
Abstract: 101,177. Greppi, J., and Roma±ach, A. March 9, 1916. Spring wheels with continuous outer rigid ring and pneumatic, rubber-ring, and like hubs.- The outer hub-cylinder A has end flanges B overlapping external flanges B<1> on the axle-box. The cushion consists of two solid rubber elements D with an intermediate pneumatic member C of circular or other section.
Patent GB-1209667-A (GB)
Title: Improvements in or relating to a device for recording pedagogical data
Inventor: SATORIUS EWALD EDOUARD CARL
IPC: G09B1/00
Filed: 1968-01-23
Abstract: 1,209,667. Sheets and cards. E. E. C. SARTORIUS. 23 Jan., 1968 [24 Jan., 1967; 24 May, 1967], No. 3574/68. Heading B6E. [Also in Division B8] A device for recording pedagogical data, in connection with written exercises sent in by students, includes a plurality of schedule labels each divided into a number of information areas; a register card which is divided into a number of areas of size substantially identical to that of a label, each area having a mark identifying it with a particular label, means for temporarily attaching each label to a written exercise and means for permanently securing the label to an area of the register card. The temporary securing means may be a clip, an adhesive coating, detachable adhesive tape which may carry some identification data or the label may be a stub originally attached to an exercise sheet by a weakened line, or a part of a band which encircles the exercise sheets and the permanent securing means may be adhesive on the label or on the register card.
Patent GB-310998-A (GB)
Title: Improvements in or relating to ploughs and other agricultural implements or machines
IPC: A01B3/68
Filed: 1928-02-06
Abstract: 310,998. Bomford, D. R. Feb. 6, 1928. Implements with adjustable tool frames; adjusting and lifting parts; travelling gear; frames; seats.-An agricultural plough or other implement or machine adapted to be hauled backwards and forwards by cables comprises two rows of working tools arranged crossing one another in plan, those in one row being constructed and arranged to operate in one direction of travel of the implement and those in the other row being constructed and arranged to operate in the other direction of travel and power-actuated means being provided for vertically raising and lowering the two rows alternately. Each row of tools may consist of two sets, and the rows may be raised and lowered by the pull of the hauling cables, which are connected to the implement through a lost motion connection so as to effect the raising and lowering before moving the implement in the reverse direction. A steering axle and steering gear may be provided at each end of the implement, and the two furrow wheels may be adapted to be raised and lowered alternately by the pull of the hauling cables. The implement shown comprises a. substantially rectangular main frame 10 and two rows of ploughs crossing one another and each consisting of two sets, one set being on each side of the transverse centre line of the implement. Each set is mounted on a triangular frame 23 - - 26 movable. vertically along guide pillars 28 by chains 49 - - 60 passing over guide pulleys on the pillars and winding on the axle 30 of a cable drum 29. The hauling cables 31, 32 pass through brackets 33, 34 and are fixed to the drum 29, the arrangement being such that the idle cable is wound around the drum a few turns. When the pull on the implement is reversed the cable unwinds from the drum and thus rotates it and lifts one row of ploughs and lowers the other. Rotation of the drum ceases when a stop 35, 36 on the cable engages one of the brackets 33, 34. A land wheel 63 is mounted on a stub axle 65 above each of two end axles 61, 62 and a furrow wheel 64 on a stub axle 66 below it. The two pairs of wheels are provided with steering gear operated from hand-wheels on opposite sides of the driver's seat 69. The landwheel axles 65 are carried by screwed steering- pivots 75, which are adjustable. vertically to regulate the depth of work. Each of the axles 61, 62 is pivoted on a stud 70 near one end, the other end passing through a slotted bracket 73 and having a chain 79, 80 attached to it. The chains 79, 80 pass beneath pulleys 81, 82 and are connected to the drum axle 30 so as to pull the furrow wheels down alternately when the pull on the implement is reversed. Lifting-chains 87, 88 connect the axles 61, 62 with the lifting frames 25, 24, so as to raise the idle furrow wheel. Pegs are provided to hold up the frames 23-26 for travelling along roads and similar pegs for holding the axles 61, 62 in place.
Patent GB-220240-A (GB)
Title: Resilient wheel
IPC: B60C7/14
Filed: 1924-02-12
Abstract: 220,240. Mendenhall, C. A. Feb. 12, 1924. Metallic spring bodies and cores.-In wheels of the kind described in Specification 159,491 adjacent tread blocks 1, Figs. 4 and 5, are formed' with both vertical and transverse interlocking grooves and projections 2, 3, 2<1>, 3<1> to prevent radial and lateral displacement. The wheel may be an ordinary spoke wheel, or may be formed with a detachable rim, in which case radial projections 7<1>, Figs. 7 and 8, on the annular rim flanges 7 are slid laterally into pockets 12' in the felly-band 12 and retained therein by lugs 13.