baber/WOPTO huggingface dataset:
Patent GB-175443-A (GB)
Title: Improvements in apparatus for tightening and securing metal bands on packing cases and the like
IPC: B65B13/34
Filed: 1920-11-25
Abstract: 175,443. Gainsford, D. H. Nov. 25, 1920. Punch.ing; ; riveting. -Relates to devices for straining metal bands round boxes &c. and consists in punching and riveting devices for use in securing the ends of the bands. The ends of the band are gripped by cams against bases a, b, the former of which is adapted to be drawn to the right on rotation of a screw f by a handle g. When the free ends of the band overlap, a punch holder is drawn forwards in its guides r, s and a lever k is moved rearwards, a cam t depressing the punch e to perforate the band. A rivet is then inserted in the hole, the holder is moved bach so that the riveting punch m registers. The punch m is then depressed by a cam M on forward movement of the lever k, the prongs of the rivet being opened by the recesses it, o in the base of the holder.
Patent GB-1032443-A (GB)
Title: Improvements in or relating to irrigation booms
Inventor: WRIGHT CHARLES STEPHEN
IPC: A01G25/09
Filed: 1963-08-22
Abstract: 1,032,443. Spray-producing irrigation booms. WRIGHT RAIN Ltd. Nov. 23,1964 [Aug.22, 1963], No. 33260/63. Heading B2F. An irrigation boom rotatable about an upright liquid supply pipe 9 comprises sections 1, 2, 3, 4, 5, Fig. 1, each of which is supported at its end remote from the pipe 9 by a structure comprising a pair of swivelling wheels in the case of the section 1, 2, 3 and 5 and a hydraulically driven wheeled undercarriage 7 in the case of the section 4. Each section is of braced tubing 15, Fig. 3 and carries at each end-except for the sections 1 and 5-either pivoted support means 19 or 20 which,when interconnected on assembly of the boom, accommodate a vertical hinge pin 21 such that when the boom is to be moved bodily to another site it is towed as an articulated train. Sections 1 and 5 carry at their relevant ends pivital support means 20 and 19, respectively. In order to ensure rigidity of the boom when the aligned sections are rotated about the supply pipe 9, readily removable struts 22 are provided for connection in pairs between adjacent section ends as is shown in Fig. 3. The assembled boom carries a flexible spray pipe (not shown) connected to the supply pipe 9. Control of the hydraulic motor on the undercarriage 7 and the liquid supply to the nozzles on the spray pipe is effected by the cam and valve means described in Specification 1, 032, 444. The motor may be of the kind described in Specification 1, 032, 445.
Patent GB-521370-A (GB)
Title: Improvements in or relating to grinding and abrading machines
IPC: B24B47/18
Filed: 1938-11-17
Abstract: 521,370. Grinding-machines. ROWLAND & CO., Ltd., F. E., and ROWLAND, F. E. Nov. 17, 1938, No. 33394. [Class 60] Electrically-driven machines of the type in which the work is applied to the wheel by hand have the rest interconnected with change speed gearing and with a finger adapted' to make contact with the wheel and with switch mechanism so that on the one hand the wheel cannot be driven at an unsafe speed and on the other cannot continue to be driven at an uneconomical speed after the wheel diameter has become reduced. The rest 28, is movable towards and from the wheel centre on a bracket 27 adjustable vertically on the frame, and as the rest is reset from time to time following the wheel as it becomes reduced in diameter, a cam projection 33, Fig. 7, eventually engages the plunger 32 of a switch 31 and stops the driving motor. When the belts have been shifted on the line pulleys to give the next higher speed, the motor having a pivoted mounting 21 for this purpose, the movement of the belt forks 36, through links 44, 45 and bell crank 43 moves a slide 29 carrying the switch away from the projector 33 to permit a further range of inward adjustment of the rest. The bell crank is connected through bevel gearing 41 to an arm 46 linked to the finger 48, so that the finger is moved towards the wheel and prevents the belts from being moved more than one step on the cone pulleys. To prevent the motor from being restarted after backward movement of the rest to an unsafe distance from the wheel a bar 49 carried by links 50 rests on the switch plunger 32 and if such movement be attempted the frictional engagement between the bar and plunger will cause the bar to ram the plunger down. A catch and resetting finger may be provided for the bar accessible only from within the frame. The machine as shown has two motors driving separate but aligned shafts 13 each carrying a wheel 17 mounted in antifriction bearings 18 on a fixed sleeve 15 through which the driving- shaft passes with clearance, drive being communicated to the wheel at 19. One motor may drive the two spindles, independent belt tensioning being provided for by means such as jockey pulleys.
Patent GB-1180978-A (GB)
Title: Fluid Velocity Measuring System.
IPC: G06J1/00
Filed: 1967-07-20
Abstract: 1,180,978. Acoustic fluid flow-meter. WESTINGHOUSE ELECTRIC CORP. 20 July, 1967 [3 Aug., 1966], No. 33416/67. Heading H4D. In a fluid flow-meter of the type in which the difference #T between the downstream and upstream transit times of acoustic signals propagated between two transducers is indicated by a counter supplied for a time T with clock signals of frequency f proportional to the velocity of sound in the fluid, the time T is determined by means of a further counter and a fixed frequency clock signal generator so that the #T indication is independent of the velocity of sound C in the liquid. In the Fig. 2 embodiment, the two received pulses, obtained in response to each transducer transmitting a pulse towards the other, trigger logic unit 38 to apply the variable frequency clock signals from generator 32 to counter 35 for the period #T. Oscillator control logic 33 uses the resulting count n to keep the clock frequency proportional to C; but the count n is then proportional to V/C where V is the flow velocity. On completion of count n its binary complement is transferred to register 43 and an " initiate count " signal opens gate 52 to pass signals of fixed frequency F to the register. After n such signals have been passed to the register a " register full " signal from AND gate 56 blocks the clock signals to the register. The open time of gate 52 is thus T=n/F. Gate 52 controls gate 60 to pass the variable frequency clock signals to counter 48 for this period T, giving a count n<SP>1</SP>=fT which is independent of C, proportional to V and inversely proportional to F. F may be selected to give a read-out at 66 of V in desired units (e.g. ft./sec.).
Patent GB-927936-A (GB)
Title: An instrument for making anastomoses
IPC: A61B17/072
Filed: 1959-10-02
Abstract: 927,936. Stapling. B. S. BOBROV, and J. I. GRITZMAN. Oct. 2, 1959, No. 33445/59. Class 89 (3). [Also in Group VI] A stapling device comprises a pair of serrated jaws 5, 6 between which the material to be stapled may be gripped, the first jaw 5 carrying two rows of staples and the second jaw 6 having means for bending the staples, a staple driver 22<SP>1</SP> for operating punches 19 to push the staples out of the first jaw, and a knife 25 for cutting the stapled material between the two rows of staples. Each jaw is attached to a frame 11, 21, the frames being detachably pivoted to one another about a pin 3 at the end remote from the jaws. A lever 26 on one frame engages a pin 28 on the other frame to prevent inadvertent separation of the jaws. The staple driver 22<SP>1</SP> and the knife 25 are carried by a bar 22 which is slidable within the staple carrying jaw 5 and on the frame 1<SP>1</SP> associated with that jaw. The jaws are applied separately to the material to be stapled. After the jaws and frames have been connected together at the pin 3 and by the lever 26 so that the material is gripped, the staple driver and the knife are projected to eject the staples and cut the material.
Patent GB-938539-A (GB)
Title: Improvements in and relating to hydro-mechanical compound transmissions
IPC: F16H47/07
Filed: 1962-08-31
Abstract: 938,539. Hydro-mechanical change speed gearing. MAYBACH - MOTORENBAU G.m.b.H. Aug. 31, 1962 [Sept. 2, 1961], No. 33599/62. Class 80 (2). A hydro-mechanical change speed gearing comprises an hydraulic torque converter 15, 16, 17 and coupling 29, 20 on the opposite side of the gearing to the input 11, the gearing elements being disposed in the sequence input, by-pass synchronizing unit, dog clutch changespeed gear, coupling and torque converter, and in which an inner shaft 14 connects the input 11, 12, 13 to the torque converter impeller 15, an outer concentric shaft 21 forms the input to the change-speed gear 31, 33, 35 and is connected through the coupling housing blade wheel 18 to the converter turbine 16, an intermediate concentric shaft 22 connects the other coupling blade wheel 20 to the first gear 23 of the by-pass unit and another shaft 30 carries the other gears 32, 34, 36 of the change-speed gear and the second gear 24 of the by-pass unit. The output shaft 52 is driven forwards from the shaft 30 through a dog clutch 53, gear 49 and gear 51, and driven rearwards through gears 36, 47, clutch 56 gears 50 and 51. In one mode of operation the first gear 23 of the by-pass unit is connected to the coupling shaft 22 by clutch 25, which like the clutches 37 and 42 of the change-speed gear has rejector clutching surfaces at an angle in the peripheral direction, and gears 59, 60, 62, 63 drive a synchronizer which can clutch the shaft 22 to the converter drive shaft 14 by engagement of a friction clutch 66, 67 to increase the speed of the by-pass unit or to a brake 66, 69 to decrease the speed. Shift is established by filling the coupling and transmitting torque through the converter through clutch 25, by-pass gears 23, 24 and shaft 30, this relieving either clutch 37 or 42 for shift in the change-speed gear, which clutch is synchronized by further filling of the coupling and by the by-pass unit. Shift being regulated by a regulator unit 70 in parallel across the gears 31 on the change-speed gear shaft 21 and 12 on the input shaft 11. In another operational mode the converter may be emptied and the shaft 22 driven through clutch 25 from gear 13, the coupling blade wheels reversing their roles to drive the change-speed gear shaft 21. Engine braking may be obtained by filling the coupling with one ratio engaged in the first mode, or filling the converter in the second mode of operation. Further braking may be produced by vanes 76 on the coupling housing and vanes 77 in the casing, the casing being filled for eddy braking. The reversing gear may alternately be driven from the gear 24 or a separate gear on the shaft 30 to provide the same or different ratios in reverse and to enable the output shaft 52 to be suitably positioned.
Patent GB-635387-A (GB)
Title: Improvements in and relating to sliders for sliding clasp fasteners
IPC: A44B19/30
Filed: 1947-12-19
Abstract: 635,387. Sliding-clasp fasteners. CARR FASTENER CO., Ltd., and PARKIN, L. Dec. 19, 1947, No. 33636. [Class 44] The slider of a sliding- clasp fastener is provided with a key-actuated locking bolt adapted to be brought into locking position to engage means on one of the stringers to lock the slider. The slider comprises a back plate 1 carrying a V-shaped member 4 which forms the inner walls of the diverging channels 5. The locking bolt mounted in the member 4 comprises a plate with a nose 6, a V-notch 7-8, and a stop 9 coacting with a fixed stop 14 to retain it in the locked position shown in which the nose 6 projects into one channel 5 and engages in a recess 17 of the end stop 18. Rotation of a key depresses the bolt against the pressure of a spring 12 and retracts it.
Patent GB-382790-A (GB)
Title: Improvements in air compressors and exhausters
Filed: 1931-12-04
Abstract: 382,790. Air compressors and exhausters. NEIDL, G., 20, Badstrasse, Berlin. Dec. 4, 1931, No. 33657. Convention date, Dec. 5, 1930. [Class 8 (i).] The piston 2 of the compressor or vacuum pump is driven by an eccentric &c. and has a projection 21 moving in an extension of the working chamber, the end of this extension communicating through a narrow annular space between the piston projection and the inner surface of the extension with the working space to cushion the compression strokes. Inlet is effected through a port 11 and outlet through a port 10, co-operating with a piston port 9. A starting valve is provided in the opening 15. Specification 17816/99, [Class 8, Air and gases, Compressing &c.], is referred to.
Patent GB-605034-A (GB)
Title: Improvements in or relating to power steering devices for tractor-trailor combinations
IPC: B62D53/02
Filed: 1945-12-12
Abstract: 605,034. Power steering. LETOURNEAU, Inc., R. G. Dec. 12, 1945, No. 33676. Convention date, Dec. 30, 1944. [Class 79 (v)] [Also in Group XXX] A power steering device for a tractor-trailer combination comprises a pair of members mounted together for relative rotation about a vertical axis one of which is rigidly connected to the trailer, the other of which is connected to the tractor in lateral tiltable relation thereto and driving means actuated by the tractor engine whereby the members may rotate relatively regardless of lateral tilt between the tractor and trailer. As shown the power steering device 7 is rigidly attached to the arm 8 of the trailer 9 and comprises two members, one of which is a king pin 16 bolted to a cylinder 11 which in turn is journalled at its ends in bearings 13 mounted in brackets 14 which are mounted rigidly on the platform 4, thus permitting lateral tilt. The second member consists of a body 17 mounted in bearings 18, 19 on the king-pin for movement thereabout, the body being connected to the draught arm 8 by bolts 23. The drive from the engine consists of a horizontal shaft 26 passing through the cylinder 11, geared to a vertical shaft 32 passing through the king pin 16. At the upper end of the shaft 32 is mounted a gear wheel 37, Fig. 3, which meshes with one of two intermeshing gear wheels 38, 39. Each of the latter gears have rotatably mounted on their shafts 40, 41 a smaller gear wheel 42, 43 which can be driven separately by the operation of hydraulic clutches 48, 49. Each of the smaller gears 43, 43 meshes continually with a gear wheel 44 which is mounted on a shaft 45 carrying at its lower end a pinion 52. This pinion meshes with a gear wheel 24 rigidly secured to the king pin 16. In operation one or the other of the gear wheels 42, 43 are clutched to drive the shaft 45 in the desired direction of rotation in which case the pinion 52 drives the gear wheel and hence turns the tractor about the axis of the pinion 52. A brake is fitted to one of the shafts 40, 41 to prevent relative rotation between the tractor and trailer when the combination is pursuing a straight course Cable winches 55, 56 are mounted for rotation over the housing 17 (see Group XXX).
Patent GB-855717-A (GB)
Title: Method of recovering sulfenamides from solution in organic solvents
Filed: 1958-10-22
Abstract: A sulphenamide is isolated in dry form from a reaction mixture comprising a solution of a sulphenamide in an organic solvent by subjecting said solution to evaporation at such temperature and pressure that the bulk of the solvent is separated and the sulphenamide obtained from the evaporator contains not less than 1% and not more than 5% by weight of solvent, and then introducing the sulphenamide into an enclosed evacuated space whereby the remainder of the solvent is substantially completely separated without the application of external heat.  An Example describes the recovery of N-oxydiethylenebenzothiazole-2-sulphenamide from monochlorobenzene/morpholine.  Specifications 713,496, 737,252 and 805,021 are referred to.
Patent GB-1361461-A (GB)
Title: Method and apparatus for filterin flowable material
IPC: B29C48/694
Filed: 1971-07-19
Abstract: 1361461 Filter for molten polymer POLYCONVERTERS Ltd 19 July 1971 [17 July 1970] 33799/71 Heading B1D [Also in Division B5] A filter adapted for location between a screw pump delivering recovered waste polymer and a tube-forming extrusion die (Fig. 1, not shown) comprises an inlet 23 communicating with annular channel 35 on the upstream side of flat, circular filter element 31, whence the polymer flows radially inwards, most filtering through element 31 to outlet 24 but some sweeping across the element to outlet 38, 39 and carrying the impurities with it. As shown face 36a is slightly conical to maintain a flow velocity radially inwards across the upstream face of the element which is at least 2.5 times the velocity through the element. A throttle valve (45) an outlet 39 enables control of relative velocities. Element 31 comprises layers of wire mesh which are progressively coarser in the downstream direction. Inlet 23 and outlet 24 are flanged to enable their connection to other parts by ring clamps (27, 28) Pins 20 align housing parts 18, 19 and bolts 21 connect them.
Patent GB-366937-A (GB)
Title: Improvements in or relating to electron discharge amplification systems
IPC: H03G3/20
Filed: 1930-11-10
Abstract: 366,937. Valve amplifying circuits. HAMMOND, J. H., Hesperus Avenue, Gloucester, Massachusetts, U.S.A. Nov. 10, 1930, No. 33823. Convention date, Nov. 12, 1929. [Classes 40 (iii) and 40 (v).] In an amplifier for gramophone reproduction or the like means are provided to vary the gain in accordance with the intensity. In addition means are provided to prevent overloading and control the amplification in accordance with frequency. The Figure shows a valve 5 the grid bias of which is controlled by the input from pick-up 1 or photo-electric cell 80, a network 17 serving to discriminate against the high frequencies so that extraneous noises of high pitch, e.g. scratch, are largely suppressed at low intensities. The grid bias of the valve 5 is controlled also by the output through a biased rectifier 26 so that decreased amplification is obtained with outputs in excess of a predetermined amount. A filter network 25 is provided so that low frequencies are more readily passed so that for these frequencies the limiting action occurs sooner than for high frequencies. The frequency characteristic of the amplifier is controlled by filter 13, the variable condensers 11, 12 of which are controlled by solenoid 14 in accordance with the output through biased rectifier 31. Adjustment is effected by potentiometer 38 and meter 39. In a modification, Fig. 5 (not shown), overloading is prevented by a series resistance in the grid circuit of valve 5 and by an auxiliary valve in parallel with the anode load of amplifying valve 5, the impedance of the auxiliary valve is controlled by the output by varying the grid bias. In this modification instead of an electromechanical control of the frequency modifying filter in the input a valve control is used in which valves are placed in series with the filter condensers and have their impedance controlled by the output.
Patent GB-801596-A (GB)
Title: Circuit for energizing at least one gaseous electric discharge lamp
IPC: H05B41/232
Filed: 1955-11-25
Abstract: 801,596. Supply systems for space-discharge lamps; protective arrangements. CLAUDE PAZ ET VISSEAUX. Nov. 25, 1955 [Nov. 26, 1954], No. 33867/55. Class 38 (4). In a discharge lamp circuit comprising a large magnetic leakage transformer having a primary winding 8 connected through a condenser 3 across an A.C. source and at least one secondary winding 5 energizing one or several series connected discharge lamps 7, at least the greater part of the secondary winding and possibly also at least a portion of the primary winding is shunted by a resistor 6 having a very high negative temperature coefficient of resistance and whose ohmic value is high when the lamp discharges normally but decreases largely and gradually when, while the circuit is still energized, the lamp discharge current is either nil or very small during at least every other half-cycle of the source. Thereby, should the lamp rectify in operation, or fail to strike the consequent voltage rise in the primary circuit, which may then be near resonant and produce dangerously high voltage and currents, is prevented by the transformer open circuit voltage causing the resistor 6 to heat up, pass a higher current, and constitute a lead of the same order as that of the lamp when discharging normally. As shown, the transformer is double wound, the large magnetic leakage is provided by a shunt 4, and the circuit is operated in parallel with a known lagging current lamp circuit to prevent flicker or stereoscopic effect and to improve the power factor. But in other embodiments, not shown, the latter circuit is not provided in which case an inductor may be connected across the input terminals 9, 10 to improve the P.F., and the transformer may be auto-connected, one end of the secondary winding being connected to an end or to a tapping on the primary winding and the resistor 6 being connected across both windings. The lamp may have, not shown, an outer starting band connected to one electrode through a resistance and when there are several lamps they start either simultaneously or successively. The transformer may be of the shell type.
Patent GB-1405342-A (GB)
Title: Starch-extended gelatin compositions
IPC: A61K47/36
Filed: 1973-07-17
Abstract: 1405342 Gelatine-starch derivative compositions NATIONAL STARCH & CHEMICAL CORP 17 July 1973 [17 July 1972] 33922/73 Headings C3U and C3H [Also in Division B8] A gelatine composition useful for making pharmaceutical capsule shells comprises 40- 97% by weight of modified starch selected from (a) fluidity starches chemically modified with monoreactive moieties to a DS of at least 0À008 and (b) thermally modified starches chemically modified with monoreactive moieties to a DS of at least 0À008, said modified starches (a) and (b) being selected from the succinate, alkenyl succinate, diethylaminoethyl ether, phthalate, sulphonate, carboxy-methylated and chlorinated derivatives, and said modified starch being chosen so that an aqueous solution containing 30% by weight total solids comprising the chosen proportions of said modified starch and gelatine, held at 137 F. (58 C.) for 16 hours exhibits no phase separation.
Patent GB-828752-A (GB)
Title: Improvements in the preparation of pre-gummed papers
Inventor: KEARLEY WALTER
IPC: C09J7/32
Filed: 1957-10-31
Abstract: 828,752. Gummed paper. WALL PAPER MANUFACTURERS Ltd. Sept. 23, 1958 [Oct. 31, 1957], No. 33970/57. Class 140. A gummed paper, particularly wallpaper, poster paper or billboard paper, has on the surface opposed to the face side, a coating of dried solvent sensitive adhesive comprising a mixture of sodium carboxymethyl cellulose and a starch ether. The mixture, which may contain between equal parts by weight of the components to one part sodium carboxymethyl cellulose to two parts starch ether, may be applied to the paper in the form of an aqueous dispersion. The coating while still moist may be dusted with a dry powdered mixture of sodium carboxymethyl cellulose and starch ether. The amount of mixture applied may be such that a dry coating of between 0.1 and 0.4 oz. per square yard is formed.
Patent GB-467099-A (GB)
Title: An improved lounge chair
IPC: A47C1/033
Filed: 1935-12-07
Abstract: 467,099. Spring upholstered seats. RISBORO' FURNITURE, Ltd., and GOODEARL, P. R. Dec. 7, 1935, No. 33991. [Classes 52 (ii) and 52 (iv)] In a chair having an angularly adjustable back the upholstery springs are carried by flexible laths s running from the top rail k of the back to the front edge p of the seat and made in two parts hinged together at a point t in the neighbourhood of the pivotal axis of the back frame. The top rail k may be resiliently suspended from the back frame. Specifications 363,451 and 407,370 are referred to.