baber/WOPTO huggingface dataset:
Patent GB-1383663-A (GB)
Title: Tool holder assembly
IPC: B23B31/113
Filed: 1972-05-05
Abstract: 1383663 Chucks HOUDAILLE INDUSTRIES Inc 5 May 1972 [9 Sept 1971] 21045/72 Heading B3B A tool holder assembly comprises a hollow supporting member having a tool receiving recess 14 and a threaded end portion 15; a tool having a shank receivable in said recess and a flange; a threaded locking ring 12 movable between a locked and an unlocked position on said threaded portion; means on said supporting member, said tool, and on said locking ring to lock said tool on to said supporting member for driven co-rotation: a lock spring 37 acting between said supporting member and said lock ring to urge the lock ring to the locked position; a release pin 45 directly slidably carried by said supporting member for movement along its length in a direction parallel to the rotational axis of the supporting member and disposed to be engaged by said tool flange as said tool is received by said supporting member; a latch pin 44 rigidly connected to the release pin 45 and receivable in an axially directed slot 47 in the looking ring in the locked position; and a spring 46 urging said release pin 45 towards the tool flange. The tool locking means comprises ears 18 on the locking ring 12 that pass through slots in a leading shoulder in the tool flange and engage in a peripheral groove in the flange. Driving lugs 16 also engage to drive the tool. The spring 37 acts in a groove 36 between a stop on the locking ring 12 and a retaining member 39 fixed relative to the supporting member. The ears 18 ensure clamping into the recess 14 and ejection of the tool by rotation of the locking ring.
Patent GB-946060-A (GB)
Title: Improvements in or relating to double helical gearing
Inventor: WILHELM GUSTAV STOECKICHT
IPC: F16H1/08
Filed: 1962-05-31
Abstract: 946,060. Toothed gearing. W. G. STOECKICHT. May 31, 1962 [July 27, 1961], No. 21070/62. Drawings to Specification. Heading F2Q. In double helical gearing, the angles of the helices of the gears differ and also the pressure angles differ, the helix having the smaller angle of inclination having the larger normal pressure angle. Preferably, the target values of the pressure angles correspond substantially to the cosine values of the helix angles.
Patent GB-341430-A (GB)
Title: Improvements relating to paper cutting machines
IPC: B26D7/00
Filed: 1929-07-09
Abstract: 341,430. Guillotine machines. HALLER, 0., 10, Waldheimstraase, Berne, Switzerland. July 9, 1929, No. 21095. Convention date, May 11. Addition to 334,850, [Class 31 (i), Cutting and severing machines &c.]. Void [Published under Sect. 91 of the Acts]. [Class 31 (i).] In a guillotin machine for trim ming photographs and other sheets, a blade 22 is oscillated on posts 8 and co-oper ates with a stationary blade. The paper i positioned on a table 2 by guides 3, 4 Hand pressure applied to a member 6 closes a switch which completes circuit through a solenoid 33, actuating the blade 22 through bell-cranks 48. Specification 334,850, [Class 31 (i), Cutting and severing machines &c.], is referred to.
Patent GB-1532583-A (GB)
Title: Traps for animals
IPC: A01M23/24
Filed: 1977-05-19
Abstract: 1532583 Animal traps T OHTSUKA 19 May 1977 21124/77 Heading AIM An animal trap has a spring plate 5 pivoted at 6 to a base plate 1, the free end of the spring being inserted in an aperture 2 in the base plate and held bowed by a projection 7 engaging a cylindrical abutment 8 placed on the base plate. The abutment 8 is either constituted by a bait or connected to bait, so that when the bait is taken the spring plate straightens out, its free end projecting through the aperture 2, trapping the animal between the spring and base plates. When the spring plate straightens the abutment 8 is received in an aperture 9 in the base plate.
Patent GB-336283-A (GB)
Title: Process of making formaldehyde
IPC: C07C45/38
Filed: 1929-07-10
Abstract: 336,283. Wade, H., (Bakelite Corporation). July 10, 1929. Formaldehyde. -In making formaldehyde by the catalytic oxidation of methanol, the hot gaseous product leaving the catalyzers is rapidly cooled by being brought into contact with an aqueous liquid, the temperature and concentration of formaldehyde in which are maintained below the limits necessary to inhibit the formation of by-products such as paraformaldehyde. Preferably the volumes of aqueous liquid and gaseous reaction product are so proportioned that the temperature of the liquid does not exceed 50‹ C., the concentration of formaldehyde being kept substantially below 30 per cent. In an example, a dilute solution of formaldehyde cooled to 20-30‹ C. is used to treat the hot gases leaving the catalyzers in countercurrent in a suitable apparatus such as a packed scrubber or one or more jet condensers. The dilute formaldehyde solution is obtained by contacting the residual gases leaving this apparatus with water in a suitable scrubber. Supplementary cooling means may be provided in the countercurrent device, if desired.
Patent GB-1334010-A (GB)
Title: Treatment of sulphur effluent
IPC: C10B53/00
Filed: 1971-04-19
Abstract: 1334010 Removal of H 2 S from gas streams AMOCO PRODUCTION CO 19 April 1971 [30 April 1970] 21289/71 Heading C1A A process for the recovery of sulphur from a gaseous mixture containing H 2 S comprises (i) forming a mixture of H 2 S and SO 2  in a molar ratio 2 :1, (ii) introducing said mixture at a temperature of 450-600‹ F. into a first catalytic zone 10 having sulphur deposited on the catalyst, whereby sulphur is vaporized therefrom simultaneously with the reaction of H 2 S and SO 2 , (iii) passing the gases from said first zone through a condenser 18 to remove vaporized sulphur therefrom, (iv) passing the cooled gas from 18 to a second zone 44 where it is used to cool hot, freshly regenerated catalyst whilst at the same time reaction occurs between H 2 S and SO 2  in said gas to deposit elemental S on said catalyst, (v) when the gas leaving zone 44 contains more than a predetermined amount of H 2 S and SO 2  reversing the flow of said gaseous mixture through said reaction zones and repeating the above cycle. In a preferred embodiment a third catalytic reactor 68 may be incorporated such that a three-stage system as indicated in the drawing can be operated.
Patent GB-1504413-A (GB)
Title: Covering of racket handles
IPC: A63B49/08
Filed: 1976-05-19
Abstract: 1504413 Racket handle grips R A GILL 19 May 1976 [20 May 1975] 21393/75 Heading A6D A strip of foamed rubber or foamed plastics material is helically wound on a racket handle and the layer so formed is then overlaid with a helically wound strip of leather or towelling. Each of the strips has an adhesive coating covered with a protective layer, which is removed before winding. A pack containing the two strips, each having its adhesive coating and protective layer, is disclosed.
Patent GB-1476252-A (GB)
Title: Agricultural machines
IPC: E21B43/08
Filed: 1974-05-14
Abstract: 1476252 Mowing machines C VAN DER LELY NV 14 May 1974 [15 May 1973] 21401/74 Heading A1F The machine comprises rotors 22, 23 supported from below by ground-engaging dishes 86 which are freely rotatable about an axis offset from the axis of the rotor. Each rotor is carried by a shaft 50, which is rotated via gearing by shaft 46, and comprises two conical parts 65, 73 secured to the shaft 50 and carrying cutting elements 75. The groundengaging dishes are supported on spokes 84 which, together with spokes 82, support a felly 83 to be freely rotatable on the shaft 50. Each dish is freely rotatable about a shaft 85 secured to a spoke 84 and has a corrugated lower surface as shown in Figure 4. The two rotors are carried by a beam 19 pivotally connected at 17 to a frame beam 2 which is pivotally connected to beam 1 about both horizontal and vertical axes 16 and 12. A further beam 26 secured -to beam 1 and a strut 30 hold the machine in the operative position or transport position shown in phantom in Figure 1. By virtue of the pivoted frame the machine can follow ground irregularities. Each rotor is also able to pivot in a fore and aft direction about the axis of beam 19 since the rotor gearbox is connected to the beam by a pin 60 riding in a slot 61 in the beam. An air flow between the conical parts 65, 73 towards the cutters can be induced by fan blades drawing air through 70, 72 close to the shaft 50.
Patent GB-971414-A (GB)
Title: Radiographic apparatus
Inventor: SWANSON KENNETH MACGREGOR
IPC: G01N23/04
Filed: 1962-06-04
Abstract: 971,414. Radiographic apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 15, 1963 [June 4, 1962], No. 21436/62. Addition to 966,877. Heading H5R. Radiographic apparatus of the type described in the parent Specification, has a further rotary radiation-arresting member. As shown, the two members 17, 18 are arranged to rotate about axes 21, 22 which are coplanar but not colinear, the point 23 of intersection of the axes lying on the axis of the apparatus containing an extended radiation source 16, an object 12 within a holder 11, an aluminium window 15 mounted on a screening member 13 and a radiographic plate 14. In operation, only radiation passing through point 23 reaches the plate due to the rotating discs, and thus serves as a virtual source of radiation.
Patent GB-317208-A (GB)
Title: Improvements in rotary hammer mills and crushers
IPC: B02C13/282
Filed: 1928-07-24
Abstract: 317,208. Johnson, J. Y., (Pennsylvania Crusher Co.). July 24, 1928. Impact pulverizers.-In a mill for crushing wet clay or coal a crushing surface 5, against which the material is disintegrated by hammers or beaters 3, comprises a plurality of pivotally mounted elements which are moved intermittently from their normal position and are restored thereto by the action of springs or gravity, or each end of the members 5 may be mounted eccentrically so that upon rotation of the eccentrics the members move in parallel planes. The crushing surface 5, Fig. 1, comprises members each pivoted to a bar 6, the free ends of the members resting on the cams 13 through the medium of a wear. resisting strip 9. The cams 13 are rotated by gearing which may be connected with the mill shaft 15. The member 5 may have its end lifted by a ratchet wheel, the return movement being completed by a spring. In Fig. 9, the crushing surface 35 has each end mounted on eccentrics 36, Fig. 11, carried by shafts 37, 38, the two shafts being connected by a chain 39 and operated by gearing connected to the mill shaft 15. Alternate eccentrics on the shafts 37 are disposed at 180 degrees apart so that the members 35 have a differential movement in parallel planes.
Patent GB-1438486-A (GB)
Title: Vehicle steering wheels incorporating horn switches
IPC: B60Q5/00
Filed: 1972-05-09
Abstract: 1438486 Steering wheels CLIFFORD COVERING CO Ltd 31 May 1973 [9 May 1972] 21483/72 Heading B7J A vehicle steering wheel consists of rim, spokes and hub covered in a hard rubber or plastics material 13 and defining a platform 14 mounting a plate 16, and an impact absorbing pad of foamed plastics 15 covering the platform and being moulded around a plate 21 with a further rigid plate 18 fastened to plate 16 to secure the pad, the plate 18 locating a pair of switches 17 each consisting of a resilient housing in which a longitudinally ribbed and a transversely ribbed contact strip are mounted and spaced from one another such that a horn is actuated by pressing on pad 15 and forcing plate 21 to close either pair of strips. One strip of each pair is connected to the vehicle frame through plate 16 and the other via a pick-up 24 to the vehicle's horn circuit. In a modification the switches may be located in pad 15. In the embodiment of Fig. 7 (not shown) the switches are located between two plates moulded in the shock absorbing pad, one plate being connected to the wheel hub. In a further embodiment four switches are provided secured to a plate rigid with the wheel hub and overlaid by a thin plate provided by slots with three sections and secured on the inner surface of the shock absorbing pad such that depression of the pad can cause any one or more section of the thin plate to compress the switches.
Patent GB-843618-A (GB)
Title: Method and apparatus for hardening briquettes
Inventor: TETTWEILER ROBERT
IPC: C10L5/28
Filed: 1957-07-08
Abstract: 843,618. Agglomerating ores. DIDIERWERKE A. G. July 8, 1957, No. 21567/57. Class 82(1) [Also in Group XII] Briquettes made from fine grain or comminuted ore are subjected to a flow of hot gases at a temperature sufficiently high to form a thin coked outer surface on each briquette on first entering a vertical retort, and are then coked, by the normal action of the retort, throughout their thickness. A rectangular retort chamber 1 has an upper part 4 which is indirectly heated by the passage of hot gases through flues, not shown, and , a lower unheated part 5. Two transverse apron walls 9, 10, extend downwardly, for a short distance, from the roof 11 of the retort within the heated part 4, and vertical transverse partition walls 15, 16, extend from the lower boundary of the heated part 4, nearly to the roof 11. The briquettes enter the retort 1 from a hopper 6 and are finally discharged through hopper 7 and extractor 8. Gas enters the retort 1 through a series of ports 24, is heated in passing through the carbonized briquettes in the part 5 and thus cools them down, and then divides, part of the gas flowing up through the briquettes in part 4 and part being passed through the two gas passages 17, 18, formed by the partition walls 15, 16. The gas in passages 17, 18, may be completely or partly burnt with air and another gas may be introduced to regulate the quantity and temperature of the gas streams. The gas streams at a temperature of at least 700‹C. pass into spaces 19, 20, at the top of the retort, pass through the briquettes which have just entered the retort, and leave by the passage 13 formed by the apron walls 9, 10. In a modification the retort is heated exclusively by internal heating gases.
Patent GB-257937-A (GB)
Title: Improvements in and relating to electric remote control systems
IPC: H02J13/00
Filed: 1926-09-02
Abstract: 257,937. British Thomson-Houston Co., Ltd., (Assignees of Allen, H. E.). Sept. 2, 1925, [Convention date]. Wired-wireless systems; controlling switches; circuits employing low-pressure apparatus. - In a remote control system, an electric switch is opened or closed by high-frequency currents, of long or short duration respectively. The high frequency currents may be transmitted over power lines 1. As shown, a circuit 2 is under the control of a mercury switch 3 which is tilted in one or other direction by solenoids 6, 7. An electric discharge device 28 is polarized to a potential difference just below the breakdown value by the secondary 34 of a transformer 32, the primary 33 of which may be supplied from the mains 1. To open the circuit 2, highfrequency current is transmitted over the mains 1 to induce in the secondary 26 of a transformer 23 a voltage which causes discharge through the device 28. The secondary 26 is tuned to the frequency of the carrier current by a condenser 27. The relay 22 closes a circuit through a thermostatic contact 19 and solenoid 6, and also the circuit of a heater 20. After a predetermined time period, the thermostat 19 engages contact 38 to open the circuit of the solenoid 6 and energize the solenoid 7, which opens the circuit 2. The circuit is closed upon receipt of high-frequency current of shorter duration by the solenoid 6 which is energized over the normally closed contact 37. The mercury switch 3 comprises a. glass tube 12 supported on a pivoted block 4 of insulating material and having a pair of electrodes 13, 14. The electrode 13 is embedded in a glass stem 16 having a cup-shaped portion 14 which permits contact of the mercury with the electrode. The electrode 14 has a semi-circularplate 15 which at the bottom is provided with an aperture to allow the mercury to flow from oneend of the tube to the other under delay action. Sparking is reduced by hydrogen which is supplied to the tube under pressure.
Patent GB-1359061-A (GB)
Title: Carburetor with a throttle valve positioner
IPC: F02B3/06
Filed: 1972-05-10
Abstract: 1359061 Spray carburettors FORD MOTOR CO Ltd 10 May 1972 [6 July 1971] 21714/72 Heading F1B A throttle valve 22 in the induction passage 16 has at least three positions 34, 36, 37 determined by a closure limiting plunger 64. An idling passage 26 has a discharge orifice 30 which opens upstream of the valve 22 in the closed position 34. The plunger diaphragm 46 is subjected to the vacuum downstream of the valve 22 and a spring 80 urges the plunger 64 to position the valve in the position 37. A solenoid 82 has a spring-biased armature 84 which is projected to the position 86 when the engine ignition is switched-on to determine the normal idling position 36 of the valve 22, the diaphragm piston 60 abutting the armature 84. In operation, with the engine stationary and the ignition switched-off the spring 80 urges the plunger 64 to position the valve 22 in the position 37 against the action of the spring 40 for starting. During starting, the vacuum buildsup in the diaphragm chamber 50 at a rate determined by a restriction 94 and a vacuum reservoir 96 and the diaphragm 46 moves until the piston 60 abuts the projected armature 84 and the valve 22 is moved by the spring 40 to the idling position 36. When the engine ignition is switched-off the armature 84 is withdrawn and the vacuum in the chamber 50 causes the plunger to be moved and permit the spring 40 to close the valve 22 and prevent the engine running-on. After a period determined by the restriction 94 and reservoir 96 the vacuum in chamber 50 decays sufficiently for the spring 80 to cause the valve 22 to be moved to the position 37. When the valve 22 is opened beyond the position 37 the spring 68 moves the plunger 64 relative to the piston 60 and the vacuum in the chamber (50) is released through piston passage 62 and passages 78 around the piston. On deceleration the valve 22 is retained in position 37 until the vacuum in chamber 50 has been established after sealing of the piston 60 on the O-ring 74. In a modification, Fig.3 (not shown), the limiting plunger (88) is connected directly to the diaphragm 46.
Patent GB-541680-A (GB)
Title: Improvements in or relating to echo sounding apparatus
IPC: G01S1/72
Filed: 1939-07-26
Abstract: 541,680. Automatic control systems. HECHT, H., NICKELSEN, A., and SCHMIDT, G. July 26, 1939, Nos. 21769, 21770, 21771, 21772 and 21773. Convention dates, July 26, 1938, Oct. 8, 1938, Oct. 13, 1938, Nov. 5, 1938, and May 10, 1939. [Class 38 (iv)] [Also in Group XXXVIII] The time interval and therefore the depth is indicated at a distance by an electric remote control system. As shown in Fig. 1, an axially movable armature disc 6 is attracted into engagement with a constantly rotated electromagnet 2 at the commencement of the sound transmission, and is released and then held by a stationary electromagnet 1 upon arrival of the echo. Mounted on the shaft of the disc is a contact 7 which, upon sliding movement of the shaft occurring at the end of the interval, engages a resistance 9 to energize a coil 12 and thus position a pointer 13 in accordance with the depth. Between actuations, the pointer is held by an annular magnet 14 controlled simultaneously with magnet 2 by a relay 15. Instead of the electric system shown in Fig. 1, Wheatstone bridge arrangements may be used for positioning the pointer correspondingly with the contact 7. In another arrangement, the contact moves directly from one position to the next, that is, without returning to zero after each measurement, and for this purpose the contact is mounted on a second armature disc normally held stationary by an electromagnet but released at the end of the period in order to take up the new position from a heart cam secured on the shaft of the first armature disc. To obviate confusion due to the zero of the depth scale not coinciding with that of the reading pointer, for example when the sounding apparaus is mounted on the wing of an aeroplane some feet above the landing wheels, a sector 48, Fig. 5, is provided to obscure the pointer during the first portion of its travel from zero. When an amplifier is used, the voltage for it is taken from a rotary converter which also drives the magnet 2. As shown in Fig. 6, the converter 55 driven from the mains is provided with a speed governor 56 and rotates the magnet through gearing 54. The amplifier 58 is fed with a constant voltage through the leads 57, and under the control of the echo receiver 61 effects the operation of the interval meter. Constant speed of the driving motor may be obtained electrically instead of mechanically, and for this purpose the arrangement shown in Fig. 7 may be used. The motor is provided with a generator armature 67 in series with a field winding 68 and connected through a voltmeter 69 to a variable resistance 70 the lapping of which is connected to the grid of a valve 72. The anode circuit of the latter includes the field magnet 65 of the motor the speed of which is therefore maintained constant by the inverse effect of a rise in voltage due to increased speed upon the field.
Patent GB-190446-A (GB)
Title: Improvements in airships
IPC: B64B1/00
Filed: 1922-08-11
Abstract: 190,446. Luftschiffbau Zeppelin Ges. Dec. 24, 1921, [Convention date]. Aerostats.-Airships having internally braced directive surfaces have their keel fins 2 formed as part of a framework 3 extending along the interior and lower part of the airship to the front anchor ring 4. The lower portion of this framework extends outwardly relatively to the adjacent sides of the polygonal rings, as shown in Fig. 4, the fabric of the bent out portion being supported by transverse members of the framework, or only by a dependent keel-piece from a horizontal member of the framework. The upper corners 9 of the framework 3, which may be combined into one in a modification, are connected by struts 12 to laterally disposed corners of the frame rings and by ties 11 to the remaining corners. Skids.-The keel fin has a spur or runnershaped buffer 5.
Patent GB-670543-A (GB)
Title: Improvements relating to mixing devices
Inventor: METCALFE CLIFFORD
IPC: A47J44/02
Filed: 1949-08-24
Abstract: 670,543. Food cutters &c. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 29, 1950 [Aug. 24, 1949], No. 21959/49. Class 5(i) [Also in Groups II and XXXV] A shredder is coupled to a highspeed drive in the power head of a mixing machine, (see Group II). The shredder comprises a cup 45 through which projects a shaft 46 the lower end of which carries a coupling element 47 adapted to fit over the squared end of shaft 5. On the upper end of shaft 46 are mounted blades 48. In order to prevent rotation of the cup 45 when the shaft 46 is rotated by the shaft 5, the cup is provided with projections 49 which project into recesses in the power head 43.
Patent GB-1048263-A (GB)
Title: Rotary pump for pulverulent, granular or pasty substances
IPC: F04C2/12
Filed: 1963-05-31
Abstract: 1,048,263. Rotary pumps. J. F. I. DE MEULENAERE. May 31, 1963 [June 1, 1962], No. 21978/63. Heading F1F. A rotary pump for pulverulent, granular or pasty substances comprising a pump casing 1, Fig. 1, housing a pair of identical intermeshing rotors 2 includes round the hub 2 3  of each rotor, a resilient covering 6 of rubber or other flexible material so that on rotation of the rotors the hub of one rotor sealingly engages the extremities of the rotor blades 2 1  of the other rotor. A gap j between the blade extremities and arcuate surfaces 1 3  of the casing is sealed by the throwing out by centrifugal force of the substances being pumped. An intake pipe 4 and a delivery pipe 5 connected to the casing include lateral openings covered by phosphor bronze plates 7 through which air is drawn in to assist flow of the pumped substance. The arcuate casing surfaces 1 3  may also have a resilient covering of rubber or other flexible material. Alternative constructions of rotor are shown in which the extremities of the blades carry a covering of resilient material mounted on a facing member capable of radial movement which permits the taking up of any wear of the co-operating surfaces.