baber/WOPTO huggingface dataset:
Patent GB-536250-A (GB)
Title: Improvements in or relating to the production of articles from an aqueous rubber dispersion
IPC: C08J5/02
Filed: 1939-08-30
Abstract: 536,250. Rubber articles. DEWEY & ALMY, Ltd. (Dewey & Almy Chemical Co.). Aug. 30, 1939, No. 24938. [Classes 70 and 87 (ii)] In making formed shapes from aqueous rubber dispersions, the former used is given a preliminary coating of, or containing, a hydrophilic colloid substance such as bentonite which is capable of forming a grossly swollen gel with water or other polar liquid. The colloid substance which is in plastic condition is caused to assume the swollen gel state after the coating of rubber dispersion has been applied to and coagulated on the former, by dipping into water or other polar liquid such as alcohol. The colloid may be applied in the form of an aqueous mixture incorporating a substance capable of coagulating the dispersion. A rubber dispersion and coagulant as described in Specification 534,278 may be used. A hygroscopic substance such as glycerine.may be incorporated in the colloid mixture which is partially dried on the former and acetone or alcohol may also be added so that the mixture becomes sufficiently dehydrated to prevent deposits of bentonite. Specification 476,481 also is referred to.
Patent GB-1181817-A (GB)
Title: Improvements in or relating to Electromagnetic Horns
Inventor: KUCERA STANISLAV
IPC: G10K9/20
Filed: 1967-05-31
Abstract: 1,181,817. Electromagnetic horns. AUTOBRZDY JABLONEC NARODNI PODNIK. 31 May, 1967 [1 June. 1966], No. 25106/67. Heading G5J. In an electromagnetic horn the dimensions of the diaphragm and acoustic baffle are greater along one axis of symmetry than along another axis of symmetry normal to the first, e.g. as shown in Fig. 1, or the diaphragm and baffle may be elliptical.
Patent GB-280339-A (GB)
Title: Improved machine for washing plates and other crockery or tableware
IPC: A47L15/06
Filed: 1926-10-09
Abstract: 280,339. Ewart, R. D., and Euk Manufacturing Co., Ltd. Oct. 9, 1926. Plates, dishes, and the like, washing.-A tank 5 is divided into compartments 6, 7, 8 by partitions 18 formed integral with the tank, the compartments 6, 7 being provided on both sides with rotary impellers adapted to agitate the liquid in these compartments. The impellers 13, which are mounted in bearings, above the water level of the tank, and are driven by worm gearing from an electric motor, comprise parallel blades 13a, preferably of angle section, secured to end discs. Covers 17 with baffles 26 are secured to the top of the tank to prevent splashing. The compartments are supplied independently with water through a pipe 9, and with steam through a pipe 11, and are provided with sumps 19 and with overflow pipes leading to a drain pipe 20. An electric heating element may be fitted within the tank, being connected with the source of current through holes in the steam pipes. When the machine is being used, dishes in baskets are placed in turn in the compartments, the compartment 8 containing boiling water to effect a final rinsing of the dishes.
Patent GB-206302-A (GB)
Title: Improvements in latches for vehicle & other doors
IPC: E05B65/22
Filed: 1922-09-19
Abstract: 206,302. Thompson, W. P., (Andersen, A. C.). Sept. 19, 1922. Latches, sliding.--In a fastening for vehicle, &c., doors of the type in which the latch may be withdrawn by a rotary vertical spindle, this spindle f is provided with a crank-throw portion g operating in an opening i in the back plate c to actuate the latch r. The latch, which is of the type described in Specification 203,532, is provided with ears u between which is secured a chair x, Fig. 7, lugs 20 on which slip into notches at the bases of the ears u whilst the legs 10 drop into slots v and are turned under the latch, the whole forming a roll-back abutment s, Fig. 5, with which the portion g cooperates. The back and front plates of the casing are formed with vertical corrugations d, e to act as bearings for the spindle f, and lugs j on the back plate are passed through slots k in the front plate and either turned down or secured by tapered pins 2 to secure the front and back plates together.
Patent GB-322446-A (GB)
Title: Manufacture of alloys of iron and aluminium
IPC: C22C38/06
Filed: 1928-09-03
Abstract: 322,446. Sandberg, C. P., Sandberg, O. F. A., and Sandberg, N. P. P., (trading as Sandberg, [Firm of]), and Bampfylde, J. W. Sept. 3, 1928. Alloys.-An alloy particularly for structural purposes consists of 11-16 per cent of aluminium and 84-89 per cent of iron. The alloy may be prepared by melting together commercially pure iron and aluminium and pouring at about 1600‹ C. Up to about 0.5 per cent of silicon may be added.
Patent GB-628208-A (GB)
Title: Improvements in or relating to means for deriving an alternating electric current from a direct-current supply
IPC: H02M7/62
Filed: 1947-09-17
Abstract: 628,208. Converting; automatic regulation. ERICSSON TELEPHONES, Ltd., and DISTIN, L. S. Sept. 17, 1947, No. 25327. [Classes 38 (ii) and 38 (iv)] In a means for deriving an alternating current from a periodically-modified circuit fed from a direct - current source, automatic compensation for voltage variations at the source is effected by means of a saturable reactor having one winding carrying the derived alternating current, the degree of saturation of the reactor being controlled by the magnetic resultant of two direct currents varying with the voltage of the source, at least one of them in a non-linear proportion. A transformer T has its primary winding fed from a D.C. source by way of an interrupter 1, 2, and the windings 3, 4 of a saturable reactor R. The windings 5, 6 are fed from the D.C. source, the windings 7, 8 being excited from a rectified portion of the derived A.C. by way of a tuned ferro-resonant parallel connected circuit LC providing current resonance when the voltage of the source is at a minimum value. Magnetic balance between -windings 5, 6 and 7, 8 is arranged. to occur when the source voltage is a maximum and the impedance of windings 3, 4 is then also at a maximum value. A fall in the source voltage produces a proportional reduction in the excitation of windings 5, 6, but the reduction in the excitation of windings 7, 8 is greater due to the approach to resonance of the circuit LC. The resultant D.C. excitation of the reactor' decreases the impedance of the windings 3, 4, thus tending to keep the current therethrough substantially constant. Windings 9, 10 provide a control of the rate of change of impedance with relation to the rate of change of D.C. excitation of the reactor. The circuit LC may be a series circuit giving voltage resonance when the source voltage is a maximum, and the size of the condenser C may be reduced by connecting a voltage step-up winding in series therewith, the winding being on the same core as the inductor L. The Provisional Specification describes an embodiment in which compensation is effected by means of an auxiliary transformer having its primary winding connected across the A.C. supply from the interrupter, the secondary being connected in series with the A.C. supply in such a manner that the difference in their voltages provides an A.C. input to a rectifier, the output of which feeds a D.C. winding on a reactor, in series with the main transformer, to control its impedance. The difference in voltages is arranged to be zero when the D.C. supply voltage is a maximum. Alternatively, the primary of the auxiliary transformer may be fed from the secondary of the main transformer to obtain compensation also for a varying load. Another embodiment is described which is similar to the embodiment in the Complete Specification but i.s without the ferro-resonant circuit LC.
Patent GB-1513691-A (GB)
Title: Backstacking apparatus
IPC: B65G69/10
Filed: 1976-06-18
Abstract: 1513691 Backstacking apparatus E D SCHULTZ 18 June 1976 [19 June 1975] 25364/76 Heading B8E A backstacking apparatus 1 comprises a first boom member 48 pivotally mounted on a platform 10 of a positioning means 2 movable by rollers 16 on rails 14 and a second boom 50 fixed thereon. Each boom has respective scraper chains 54, 56 mounted thereon and the formed boom is adjustable in height by a hoist drive 38 acting through hoist members 22, 24. A hopper 18 mounted on the platform 10 has a control gate element 20 and a loading gate 11 moving between first and second positions to direct material to a storage area A or a loading zone B. The scraper chain 54 can be driven in opposed directions so that material arriving at the zone A can be spread thereby when the chains move outwards while with the chains reversed material is reclaimed and fed over an inclined plate 12 by the chains 56 to the loading zone B. The boom 48 is kept in contact with the material in zone A by heightwise adjustment.
Patent GB-337101-A (GB)
Title: Improvements in or relating to gauges for screw threads
IPC: G01B3/40
Filed: 1929-08-21
Abstract: 337,101. British Dardelet Threadlock (D.D.G.) Corporation, Ltd., and Rowell, H. S. Aug. 21, 1929. Surface and outline gauges. - Comprises a screw thread gauge having at least one pair of rollers each of which has annular gauging projections, the planes of which on one roller are at an angle to the planes of the projections on the other roller. The gauge is built up of two metallic plates 1, 2 of double tee shape spaced apart by a distance piece 3 and riveted together. Between one pair 5 of tee heads two rollers 6, 7 are supported on pivot pins 8, 9. The rollers are provided with annular grooves 10, 11, 12 and annular projections 13, 14. Between the lower tee heads 15, 16 are adjustably secured two forked members 17, 18 provided with plain extensions 19, 20 which are adjustably mounted between distance pieces 21, 22 and 3, and secured in position by set screws 25. Between the jaws of the forks are mounted rollers 27, 28 each having an annular projection 30, 31. The lower rollers may have two projections and the upper rollers one. In a modification, the stems of the forks are provided with two oppositely disposed flat sides offset at an angle of approximately twice the helix angle. One or more rollers may be mounted in an eccentric bush, not shown, and such may be secured in any suitable manner. The gauge is intended for use with threads other than V-threads and may be set to a standard screw.
Patent GB-864149-A (GB)
Title: Improvements relating to nozzles of heat-treatment apparatus for webs
IPC: F26B21/00
Filed: 1959-07-24
Abstract: 864,149. Drying apparatus for webs. MOHRING, G. July 24, 1969 [July 26, 1958], No. 25524/59. Class 34(1) A web drying apparatus comprises nozzles, each having a plurality of intermediate members 3, Fig. 1, between side walls 2, the effective cross-section of which members are made adjustable so as to vary the slit width a, b of the nozzle mouth at a number of points. Each member comprises a profiled hollow body having free longitudinal edges 8 which are releasably clamped between superposed longitudinal bars 6, 7 held by screws 5 so as to be slidable toward or away from each other to vary the slit width. Ledges 4 project from. each member to form a distance element for the web B. In a modification (Fig. 2, not shown), each intermediate member comprises a hollow bar of adjustable cross-section which projects beyond the mouth of the nozzle to form a distance element for the web and in a further modification the side walls 2, Fig. 3, are adjustably secured together by bolts 9 to vary the width of the nozzle mouth at a number of points and have one wall projecting beyond the other to serve as a distance element 11.
Patent GB-283654-A (GB)
Title: Improvement in motor vehicles
IPC: B60K17/04
Filed: 1926-10-15
Abstract: 283,654. Evans, E. S. Oct. 15, 1926. Axle structures.- The load carrying rear axle of a motor vehicle is mounted eccentrically to the stub axles of the rear road wheels and can rotate through a small arc relatively thereto so that the load acting through the springs can assist the torque imparted to the road wheels by the driving gear to enable. the wheels readily to surmount road obstructions. Each driving wheel hub 11 carries a spider 22 to which an internal gear 23 is riveted, the gear being driven by a pinion 28 on the differential half shaft 30. The stub axle 19 is mounted in a hub casing 33 which has an extension forming a tubular housing 41 surrounding the half shaft 30 and connected to a corresponding housing for the other half shaft by a bridge piece 42. Fig. 2. Surrounding the housings 41 is the axle casing 39 the ends ,of which are rotatably mounted on the ends of the housings 41 by means of flange joints 38. The springs 56 are mounted on the axle casing 39 and shackled at both ends to the frame. In operation. when a road wheel meets an obstruction, the wheels are momentarly retarded relatively to the chassis: The pinions 28 climb up the sides of the internal gears and the load, acting downwards through the springs and axle casing, pushes the pinions down again and the wheel surmounts the obstacle,.
Patent GB-1274461-A (GB)
Title: A friction clutch for an automotive vehicle
IPC: F16D13/64
Filed: 1969-05-21
Abstract: 1,274,461. Friction clutches. NISSAN MOTOR CO. 21 May, 1969 [5 June, 1968], No. 25820/69. Heading F2C. In a friction clutch having a driven disc 12 between a flywheel 10 and presser plate 15, the driven disc 12 is bent at 20 and its internal resilience separates the disc from the flywheel 10 during disengagement. The bend may be provided in an outer disc 16 carrying friction faces 18 or in an inner disc 17 connecting the outer disc 16 to a hub 13. The bend may be provided within the extent of the friction faces 18. The bend may be provided by connecting the inner and outer discs 16, 17 at an angle.
Patent GB-902181-A (GB)
Title: Improvements in or relating to apparatus for transferring designs to printing cylinders
IPC: B41C1/06
Filed: 1957-08-15
Abstract: 902,181. Printing and embossing surfaces. ABELL, Sir G. E. B., HARPER, C. W., and CHADDER, H. L. Nov. 14, 1958 [Aug. 15, 1957], No. 25825/57. Class 100 (2). An apparatus for transferring a design to a printing or embossing surface comprises a body 11 of cylindrical form bearing on its outer cylindrical surface a raised design 15 to be transferred to the printing or embossing surface by rolling the design along the surface under pressure, the body 11 having a central longitudinal bore and being supported on a cylindrical mandrel 12, the mandrel being a loose fit within the bore so that there is a space 13 between the bore and mandrel to permit the insertion of packing 14 behind any selected part of the design.
Patent GB-510576-A (GB)
Title: Improvements in and relating to cantilever supports
IPC: B62D21/02
Filed: 1938-09-03
Abstract: 510,576. Underframes for vehicles. KLIPIN, A. B. Sept. 3, 1938, No. 25849. [Class 108 (ii)] [Also in Groups XXXI and X] A bearer adapted to be' secured to and to project beyond the sides of the longitudinal side members of a chassis for a vehicle, comprises a hollow structural member of rectangular cross section; the sides of which are parallel between the side members, but converge towards the free ends of the projecting portions. The bearers are formed of channelsection bars b, c, united at their upper and lower portions by flat plates d, which may be provided with upstanding end portions n to which the body portion of the vehicle is secured. Alternatively, the channel bars may be disposed as the upper and lower members, and the plates as the side members, and in this construction, the plate may be corrugated. The projecting portions may also taper in the direction of depth towards their free ends, and the side members may also curve towards their free ends. Stiffeners s are disposed within the bearers at the places where they are bolted to the chassis members f, g, and upper stiffening plates o, p, are also used at these positions.
Patent GB-1349794-A (GB)
Title: Device for switching off textile machines
IPC: B65H63/028
Filed: 1971-04-19
Abstract: 1349794 Yarn failure; stop motion BARMAG BARMER MASCHINENFABRIK AG 19 April 1971 [16 May 1970] 25863/71 Headings DID and D1F A device for switching off a textile machine or a part thereof in the event of yarn breakage or in the event of exhaustion of the supply bobbin comprises a yarn monitor which is fixed to a holder 16 which is itself adapted to be fixedly attached to a machine frame, the yarn monitor acting as a ballooning eye 2 and being urged to tilt about a first axis, e.g. provided by pivot pin 3, against the effect of yarn tension, and further being adapted to rotate about a second axis e.g. provided by pin 12, perpendicular to the first axis, the device also comprising a built-in electrical switch 4 which is closed when the monitor is tilted through a predetermined angle, and is closed when the monitor is rotated through a predetermined angle. The monitor comprises a probe 1 having a pigtail eye 2 at one end, the other end being pivoted about pin 3 fixed in a housing 18 of the monitor. The housing 18 is rotatable about a non-rotatable pin 12 fixed in the holder 16. The switch 4 carries a pin 8 engaging a curved cam surface 9 carried by a flange 11 of the stationary pin 12. The switch 4 also carries a cam 5 cooperating with a switching lever 6 of a microswitch 7. A spring 17 mounted between the housing 18 and the flange 11 of pin 12 causes frictional forces to prevent accidental rotation of housing 18. In the event of yarn failure, the probe 1 tilts about pin 3 either by gravity, spring means, or magnetic means, and causes cam 5 to push lever 6 to close the contact of the microswitch 7 to switch off the machine or part thereof. The probe can be locked in the position by a rotatable can 20. The probe 1 can also be tilted out of the operative position by rotation of the housing 18 about pin 12. In this event, pin 8 engages the curved surface 9 and causes the probe to tilt about pin 3 and thus close the contact of the microswitch 7 to stop the machine or part thereof. The housing can be locked in this position to prevent accidental starting of the machine e.g. when doffing on a twisting machine.
Patent GB-430411-A (GB)
Title: Improvements in and connected with stair treads
IPC: E04F11/16
Filed: 1933-09-19
Abstract: 430,411. Stairs ; treads. ELGOOD, E. G., 85, Chudleigh Road, Brockley, London. Sept. 19, 1933, No. 25880. [Class 20 (iv)] The front edge of each tread of a staircase is rabbeted for a short distance inwardly to provide a shoulder a<2> whereby a covering of cork tiles or slabs B, which is provided over the whole surface of the treads and risers, is of greater thickness at the front portion of each tread than at the remaining portion of the tread. The staircase may be formed of wood or concrete, and when of the latter material, the risers and treads are provided with a finishing surface a<1> of cement and sand to receive the tiles or slabs B. The tiles or slabs B may be secured to the surface a<1> by a mastic cement a<3>. The tiles bl constituting the nosings of the treads may be formed of cork of a heavier density than that of the other tiles, and such tiles may be spiked in position. The tiles B may be formed of compressed cork granules or other cork composition.
Patent GB-638140-A (GB)
Title: Method and apparatus for shaping solid objects of glass and like materials
IPC: B23Q27/00
Filed: 1946-08-28
Abstract: 638,140. Grinding and cutting lenses &c. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Aug. 28, 1946, No. 25884. Convention date, March 27, 1945. [Classes 60 and 124] [Also in Group XXII] A machine for working on a hard object, such as a lens or mirror, by means of a cutting or abrading tool to form a concave or convex surface thereon having the shape of a solid of revolution of a conic section, comprises means for rotating the object about the axis of the required shape and for displacing the cutting or abrading end of the tool in a plane containing said axis, the end of the tool being constrained to remain constantly aligned with a " pilot point " which is itself constrained to move simultaneously in a plane parallel to said plane and on a conical surface or revolution. In one form, Fig. 1, the workpiece 1 is rotated by a shaft 3, and a pointed tool 7 is movable axially by means of a feedscrew in a holder 6 pivoted on an axis V-Z to a bracket 11 which in turn is pivoted on an axis G-H to a bracket 9 rotatable about an axis E-F in the machine frame 5. The shaft 12, defining the axis V-Z, has a cranked extension 14 coupled by a universal joint 15 to a rod 18 slidable in a bracket 19 rotatable about an axis OK in a frame 22 adjustable parallel to the rod on a carriage 24 which in turn is adjustable in arcuate guides 25, 26. The centre P of the joint constitutes the " pilot point," and the axis OP the generator of the conical surface. In operation, the inclination of the axis OP is adjusted to give the required conic section, the length OP is adjusted to give the required dimensions to the work-piece and the tool is fed axially until its point lies on the axis V-Z containing the point P. The bracket 9 is then rotated by a worm and wheel 31, 32 to move the tool across the work-piece, the orientation of the tool in the horizontal plane being controlled by a handle 6a on the holder 6. In a second form, Fig. 4, the tool 7 is a grinding-wheel having an end face engaging the work-piece. In order to maintain the axis of the wheel perpendicular to the curve described by its end, the rod- 18 is keyed in the bracket 19 and carries an arm 33 located in the plane KOP and engaging a slot 34 in an extension 35 of the holder 6. In a modification, Fig. 7 (not shown), the rod 18 is coupled by a Hooke's joint to an extension of the holder 6. In a third form, Fig. 9 (not shown), a pointed tool is mounted on a pantograph linkage so that its axis is always parallel to a given line.
Patent GB-1071577-A (GB)
Title: Improvements relating to extensometers
Inventor: KYLE JAMES CLAYTON
IPC: G01B7/16
Filed: 1964-06-23
Abstract: 1,071,577. Measuring length electrically. PHYSICAL SCIENCES CORPORATION. June 23, 1964, No.25963/64. Heading G1N. Variations in the length of a rod due to creep when subjected to a tensile stress are measured by a differential inductance having a core which is made to follow the free end of the test rod, and is connected into an automatically balanced bridge circuit whose servomotor is connected to a counter also indicating the length of the test rod. As shown (Fig. 1), a rod 18 is fixed between the wall of a fluid-tight capsule 10 and the casing of a bellows 16. The interior of the bellows is supplied with atmospheric pressure via conduit 17 and the interior of the capsule 10 is supplied with high pressure gas, e.g. helium, via conduit 56, thus placing the rod under tension. The fixing 24 between the rod and the bellows is mounted on a carriage 25 carrying a centre-tapped winding 26 whose associated core 30 is assembled on a rod 34 with a probe member 35 at one end, co-operating with a stop member 32. Winding 26 is connected in a bridge circuit with a similar winding 40, any unbalance being amplified at 44 to cause servomotor 45 to rebalance the bridge by displacing core 42 by a measured amount. The rod 34 carrying core 30 is displaceable by motor 52 controlled by an automatic reversing switch 70, so that probe 35 is reciprocated over a short distance to and from stop member 32. If the duration of the forward movement is excessive a timing mechanism 96 cuts off the power supply to motor 52 and energizes alarms 98, 100. The initial position of coil 26 is measured by motor 52 and counter 64, and the increase in length of rod 18 under the applied tension is measured by motor 45 and counter 46. Motor 52 may be manually controlled by switch 68 to move the core 30 by unit steps, indicated on counter 64. Mechanical details are shown, including thermocouples 120 Fig. 2 (not shown) for sending the temperature of the test rod 18, associated with means for automatically controlling the temperature at a desired value.