baber/WOPTO huggingface dataset:
Patent GB-558666-A (GB)
Title: The oxidation of organic compounds
IPC: C07C45/29
Filed: 1942-06-10
Abstract: 558,666. Oxidation of organic compounds. DREWITT, J. G. N. June 10, 1942, No. '7938. [Class 2 (iii)] In the oxidation of organic compounds by means of a lead tetra-carboxylate such as lead tetra-acetate, the oxidizable compound is reacted with red lead and a quantity of the carboxylic acid from the theoretical quantity to 25 moles. per mole. of red lead. A diluent may be employed consisting of water or an organic liquid which althougn capable of reacting with lead tetra-acetate, does so only slowly in comparison with the body to be oxidized. The process is applicable to the oxidation of α- glycols, compounds having a non-aromatic double bond, and compounds having a reactive carbon atom, i.e., a carbon atom to which is attached at least one hydrogen atom and adjacent to which is an activating group such as a keto group, a benzene ring or a non- aromatic double bond. Thus α-glycols yield aldehydes, compounds containing a non- aromatic double bond yield at least partly glycol diacetates, and compounds containing a reactive carbon atom yield compounds in which a hydrogen atom is replaced by an acetate radicle. Ethylene glycol yields formaldehyde, cyclohexene yields both cyclohexene-1-2-diol diacetate and #<SP>2</SP> cyclohexenol acetate and acetone yields mono-oxyacetone acetate and dioxy acetone'diacetate. Alcohols are oxidized to aldehydes or ketones. The process is carried out as described in Specification 554,730. Examples describe the production of formaldehyde from ethylene glycol and of formaldehyde and acetaldehyde from propylene glycol.
Patent GB-127860-A (GB)
Title: An Improved Spanner or Wrench.
Inventor: WILLIAMS HENRY THOMAS
IPC: B25B23/142
Filed: 1917-06-05
Abstract: 127,860. Williams, H. T. June 5, 1917. Wrenches. - Relates to wrenches specially adapted for aircraft manufacture, whereby nuts, bolts, straining-wires, tie-rods, &c. may be screwed up, strained, or tensioned to a predetermined amount only, the wrench being then automatically released, and comprises a self-releasing wrench in which the effective power is determined by a coiled spring in a casing between a fixed abutment and the pivoted jaw or jaws of the wrench. As shown in Fig. 1, the handle of the wrench comprises a tube a having the part a<3> flattened to rectangular form, and in this flattened part or casing, a wrench head c having a nut-gap c<2> is pivoted on a cross-pin c<3>. The rear part c<4> of the head c engages the end d<2> of a release lever d pivoted at d<3> on a block e slidable in the casing a<3> against the pressure of one or more strong springs i in the tube a. The pressure of the spring i is determined by the screw plug j, which may be set by aid of a slot and scale on the tube a. On turning a nut &c. in the direction shown by the arrow, the part c' presses against the lever d, and the block e is pressed back until the part c<4> escapes from the end d<4>, the final release being accelerated by the rocking of the lever d on its pivot by its engagement with a cross-pin g in the casing. The head c is pulled back to normal position, by hand, a light spring f allowing the lever d to rock for the purpose. In the modification shown in Fig. 5, the wrench head comprises two parts c, c both pivoted at c<3> in the casing a<3>, and both engaged by the spring- pressed block e.
Patent GB-526313-A (GB)
Title: Improvements in or relating to seals for metal vapour electric arc converters
IPC: H01J13/20
Filed: 1939-03-13
Abstract: 526,313. Uniting metal to glass. GENERAL ELECTRIC CO.. Ltd., and MORRIS, C..H. March 13, 1939, No. 8023. [Class 36] [Also in Group XL] A seal for supporting an electrode horizontally in a mercury-arc rectifier, in which a number of metal parts 1, 2, 5, 6 are insulated from but joined to each other by vitreous material 7, has the inner surface of tapered or frustoconical shape to enable any condensed vapour to run out.
Patent GB-1071931-A (GB)
Title: Pneumatic springing element, especially for vehicles
IPC: F16F9/04
Filed: 1965-02-25
Abstract: 1,071,931. Pneumatic springs. ROBERT BOSCH G.m.b.H. and CONTINENTAL GUMMI-WERKE A.G. Feb. 25, 1965 [March 21, 1964], No. 8093/65. Heading F2S. The innar and outer reinforced beaded edge portions 3, 3 of the roller bellows 1 of a pneumatic spring, e.g. for vehicles, arc clamped against inclined and mutually converging support surfaces 38, 28, provided respectively on an internal piston-like part 14, and an external pot-shaped housing part 6, 6<SP>1</SP>, by means of supporting rings 36, 8 each of which is fixed to the respective part 14 at 6, 6<SP>1</SP>. The flange 8a of the ring 8 is firmly secured between the adjacent ends of the housing parts 6, 6<SP>1</SP> which are clamped together by a clip 32 with a sealing ring 33, the flange 36a of the ring 36 being supported against a pressure ring 35a which is received in a groove in the inner housing part 14. In a modification. Fig. 2 (not shown), the ring (8) is clamped against a pressure ring (35). In a further modification, Fig. 3 (not shown), the inner ring is secured to the housing part (14b) by means of bolts (not shown), the outer edge portion of the bellows being retained between the outer surface of an outwardlyinclined lower edge portion (40) of an elongated ring (8b) and a cylindrical outer housing portion (41) into which the upper end of the ring (8b) merges.
Patent GB-1135436-A (GB)
Title: Improved sealing means particularly for the fuel elements of nuclear reactors
Inventor: VELECHOVSKY VACLAV
IPC: G21C3/12
Filed: 1966-02-24
Abstract: 1,135,436. Fuel elements. SKODA, OBOROVY PODNIK. 24 Feb., 1966, No. 8145/66. Heading G6C. In a fuel element, the head of which is provided with a plurality of sealing rings, the latter are retained in position and have their outer diameters exactly defined for different prestressings by means of limiting rings which thus prevent broken sealing rings from being forced out of, or from dropping out of, position. The limiting rings define a plurality of annular grooves each of which receives a sealing ring. The grooves and sealing rings may be of T- or L - shaped cross - section. Alternatively, the limiting rings defining a given groove have annular peripheral lips which reduce the width of the groove mouth and serve to retain a sealing ring having a chamfered or arcuate periphery. The limiting rings are retained in position axially by tightenable means such as a nut, or by the turning over of the upper part of the head.
Patent GB-305855-A (GB)
Title: An improvement in or relating to fireworks
IPC: F42B4/06
Filed: 1928-03-19
Abstract: 305,855. Greenhalgh, E. March 19, 1928. Pyrotechnic devices- The tubular body a of a tourbillion is made with two holes b, b<1> spaced apart along the tube and directed downwards and obliquely in opposite directions to produce lift and spin simultaneously, instead of, as previously, with two holes directed vertically downwards for lift and two lateral holes oppositely directed for spin. Ignition is communicated to both holes b, b<1> simultaneously by means of a fuze ; and these holes may be covered by a paper wrapping. The transverse cardboard or like stripd is made with bent edges d<1> to act like a windmill.
Patent GB-436651-A (GB)
Title: Improvements in and relating to the control of gas-or vapour-filled electric discharge tubes
IPC: H01J17/04
Filed: 1934-03-16
Abstract: 436,651. Converting. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. March 16, 1934, Nos. 8335, 8336, and 8337. Convention dates, March 16, 1933, July 31, 1933, and Aug. 2, 1933. [Class 38 (ii)] [See also Groups XL and XXXVI] The current through a gas- or vapour-filled converter, the discharge of which is discontinuous relative to the controlling potential is controlled by varying the ignition characteristic, i.e. the curve of the grid potential which just allows the discharge to start plotted against the time in the cycle. This control may be effected by varying the bias on an additional grid, by changing the cathode temperature or by a variable magnetic field. In one form, a tube 3, in series with a source 2 supplying a load 1, has a control grid 6 and an additional grid 5. The grid 6 is fed from the source 2 through a phase-control device 10, either with or without a fixed bias, and the grid 5 has a variable bias maintained on it by a battery 11 and potentiometer 8, 9. In a modification, the grid 5 is fed with a variable amplitude potential, the phase of which is displaced 180‹ from that of the source 2, e.g. by a transformer. The method of control according to the invention may be combined with the usual method of varying the grid potential amplitude.
Patent GB-345087-A (GB)
Title: Improvements in and relating to label holders for horticultural purposes
IPC: G09F3/14
Filed: 1930-03-15
Abstract: 345,087. Garden labels. WALDRON, T. N. and DAVIDSON, P. G., Avon Works, Stratford-on-Avon. March 15, 1930, No. 8376. [Class 73.] A garden label support comprises a wire bent so as to form two spaced loops C and a pair of legs A. The loops are in a plane at rightangles to that containing the legs and the ends of the label D are inserted while the connecting piece B is slightly bent, as shown, the label being gripped on allowing the legs to become parallel.
Patent GB-938448-A (GB)
Title: Improvements in or relating to cutters for strips and similar articles
IPC: B26B27/00
Filed: 1962-03-05
Abstract: 938,448. Dividing by a single blade. P. L. F. GREHAL, R. M. J. RICHOMME, and H. E. ZIMMERLIN. March 5, 1962 [April 4, 1961], No. 8425/62. Class 83 (4).  A wire or strip cutter comprises first and second arms pivoted to each other, the first arm having, at its end adjacent the second arm, cams co-operating with a part articulated on the second arm and carrying a knife and means adapted to clamp the strip to be cut, a hole being drilled in the second arm just below the knife. The second arm 23 has cam surfaces 26, 27 formed on its side flanges, and is pivoted to the first arm 1 by a spindle 5. A spindle 6 is supported by the flanges of the first arm and carries a U-section part 7 on which is mounted a knife 15 and two rubber buffers 21, 22. In Fig. 1 the device is shown in the position reached at the end of a cut. As the arm 23 is rotated clockwise, the cam-surfaces 26, 27 move away from the free end of the part 7, which is rotated clockwise by a spring 16 to raise the knife 15 clear of the shear plate 19 so that a fresh workpiece can be inserted. As the strip or wire is cut the ends are clamped by the buffers 21, 22 to prevent injury to the operator.
Patent GB-254377-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/06
Filed: 1925-03-30
Abstract: 254,377. Bramson, M. L. March 30, 1925. Screw propellers.-In variable pitch propellers the centrifugal load on the blades is taken in two ways depending upon whether the rotational speed is above or below a predetermined value. Below this value it is taken by a ball thrust which renders it easy to alter the pitch, and above this by plain thrust which tends to hold the blade rigid against relative motion with the boss. The blade 3 is provided with a ball thrust race 4 acting through a spring 5 which presses on a collar 6 screwed to the boss spigot 2. At a predetermined speed, the load on the spring is compressed, and a radial movement of the thrust bearing 4, of about one-half to one-thousandth of an inch takes place, when the bearing contacts with the ring 7 and the load is conveyed by this plain bearing to the collar 6.
Patent GB-435551-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P1/20
Filed: 1934-03-19
Abstract: 435,551. Master control of D.C. motors. WEST & CO., Ltd., A., and PADDOCK, W. J., Lewes Road, Brighton, Sussex. March 19, 1934, No. 8548. [Class 38 (iii)] In an electric motor control system in which acceleration is effected by weakening the field in response to the falling of the motor current to a given value, which value increases from step to step so as to compensate for the effect of the field weakening on the tractive effort, the successive steps of acceleration are effected by a single relay which responds when the current falls to the given value, and the increase from step-to-step of the given value is by virtue of the alteration of a resistance in series with a shunt winding on the relay. As shown, the series motor 1 is accelerated by cutting out resistances 2, 3 in series therewith and inserting resistances 4, 5, 6 in shunt with the series winding 7. At starting the resistances 2, 3 are cut out successively by operation of contactors 2a, 3a controlled by a relay 8 which responds when the main current through its series coil 9 drops to a given value, which value remains unchanged during this part of the control. During the field weakening stage of acceleration, the relay is arranged to respond to successively higher current values and for this purpose resistances 4c, 5c are inserted in series with a shunt coil 10 which assists the series coil 9 of the relay. The resistance sections are inserted by the opening of interlocks 4b, 5b on the contactors 4a, 5a which control the field weakening resistances.
Patent GB-1416976-A (GB)
Title: Rings
IPC: F16B21/20
Filed: 1974-02-26
Abstract: 1416976 Circlip WALDES KOHINOOR Inc 26 Feb 1974 [28 June 1973] 8596/74 Heading F2H A circlip for mounting on a cylindrical member to provide a shoulder for locating a machine part comprises an open-ended spring metal ring 10 having radiused prongs P 1 , P 2 , P 3  projecting inwardly from its inner edge with their tips lying on a circle C 1  concentric with the outer edge circle C 2  of the ring, the inner edge of the ring being eccentric with respect to the outer edge so as to provide a progressive decrease in ring section radial width from the mid-section of the ring to its open ends.
Patent GB-1213576-A (GB)
Title: Control circuit for a high-voltage generator tube
IPC: H04N3/18
Filed: 1968-02-22
Abstract: 1,213,576. EHT generator. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 Feb., 1968 [25 Feb., 1967], No. 8641/68. Heading H2F. A television receiver includes an e.h.t. generator having a valve 11 driven by pulses from the line deflection circuit 1 via a circuit comprising components 8, 32, 31, 30 connected as shown. As described, valve 11 is normally passing a current determined by a negative bias from a voltage regulator R but is cut off by the leading edge of each line flyback pulse on line 7. Capacitor 30 becomes charged from the pulse on line 7 so as to lengthen the pulse and hold valve 11 cut off for a period after the pulse terminates. The charging and discharge time constants of capacitor 30 should respectively be 30 and 60 Ás.
Patent GB-202668-A (GB)
Title: Improvements in and relating to conveyors
IPC: B65G19/28
Filed: 1922-03-25
Abstract: 202,668. Bennis, A. W. March 25, 1922. Troughs for endless-chain conveyers; feeding- devices.-In an endless-chain conveyer in which the lower run is submerged, coamings 3 are used in combination with a feeding shoot 24 having its end 25 beneath the surface of the liquid. Additional guide plates 27 may be provided above the coamings which as shown form the side walls of the trough. Where the trough is shallow the coaming is formed with a horizontal flange which rests on a flange provided on the top of the side wall of the trough. When the trough is deep the coaming is bolted to the side and may be extended so as to rest on the top of the side. The front edge of the coaming may be splayed where the chain enters it, and where the conveyer is inclined a revoluble disc may form part of the coaming to reduce friction.
Patent GB-772692-A (GB)
Title: Method of and apparatus for centrifugal casting of tubes from fused vitreous materials
IPC: C03B19/04
Filed: 1955-03-24
Abstract: 772,692. Moulding vitreous materials centrifugally. GLAS-UND SFIEGEL-MANUFACTUR AKT.-GES. March 24, 1955 [March 27, 1954], No. 8662/55. Class 87(2). [Also in Group XXIII] Vitreous pipes are produced by a centrifugal casting method in which drops of molten vitreous material are fed into a rotating mould which is moved intermittently so that the drops are deposited progressively on its inner wall. The mould 1 and the driving rollers 3 on which it rests are mounted as shown on a wheeled carriage 6 which can be moved by a winch 9. For continuous operation there are two moulds, Fig. 2, on two slightly upwardly inclined tracks, and one is moved by its winch during the casting operation while the pipe already cast in the other mould is being removed. Fused vitreous material, e.g. glass, ceramic, slag or basalt is fed into the mould at one end (both ends of the mould are open) in a succession of separate slugs A through a channel 7 which is shaped to direct the slugs in a path which carries them through the length of the mould until they strike a deflector 8. Each slug, when it strikes the inside of the rotating mould, is spun into a ring of material, and as the deflector penetrates further into the mould due to its intermittent longitudinal movement successive rings of material are formed which fuse together into a homogeneous body. It is stated that a pipe so moulded is free from enclosed air. To give each such ring of material a tendency to slide towards material already deposited the mould may be slightly inclined as shown. The wall thickness of the moulded pipe is determined by the inner diameter of end rings 10, 11, the inside faces of which may be contoured as at 10d and 11d to form a tongue on one end surface of the moulded pipe and a groove on the other, resulting in a seal at the joint between two pipes when laid end-to-end. The rings are pivoted to the ends of the mould and held by quick-acting locking means, to expedite the ejection of the moulded pipe by a tool applied to one end which pushes it out of the mould. The mould may be slightly conical to facilitate this ejection. Advantageously the mould is heated and the material may be pre-heated, and to compensate for unevenness in temperature due to the ends of the mould cooling more quickly, means, not shown, may be provided for cooling the middle of the mould. The feed channel 7 and deflector 8 may be mounted so that they are shifted laterally from one mould to the other. The timing of this lateral movement and the operation of the entire apparatus may be controlled automatically. Conversely the mould may be stationary and the feed channel and deflector movable.
Patent GB-293112-A (GB)
Title: Improvements in the de-scaling of metal bars and the like
IPC: B21B45/04
Filed: 1927-03-30
Abstract: 293,112. Horton, S., and Horton, W. T. March 30, 1927. Cleaning.-In the scaling of metal bars, rods, plates, tubes, &c. the bars are gripped by conveyer rolls 1, 2 and are conveyed first past water, steam, or sand-blast jets delivered from perforated pipes 3, 4 and 5, 6, and then successively through rotary rasp rolls 7, 8, further conveyer rolls 9, 10, rotary wire brush rolls 11, 12, and conveyer rolls 13, 14. The rolls are all driven from a main driving-sprocket 15 through a clutch 17 and chain or pinion gearing 18 - - 20, the rasp and brush rolls being arranged to rotate in a direction opposite to that of the feed. The spring pressure of the rasp and brush rolls may be adjusted by screws 21 and these rolls may also be reciprocated axially or moved in a lateral plane.
Patent GB-330923-A (GB)
Title: Improvements in or relating to roller and other grinding mills
IPC: B02C7/08
Filed: 1929-03-18
Abstract: 330,923. Brinjes & Goodwin, Ltd., Seaman, C. F. N., and Atherton, F. March 18, 1929. Roller and roller-and-breast mills; disc and like mills; conical mills.-In a roller and/or other grinding mill, one grinding member can be maintained and locked in operative relationship with its associated grinding member by a cam or cams adapted to act on the grinding member through a slidable rod or rods either directly or through a lever or levers pivotally connected with the rod or rods, the cam or cams being angularly displaceable to allow of a quick release of the associated grinding members and rectilinearly displaced to allow of separation of the grinding members as a result of the passage of foreign bodies therebetween. The slidable roller 1, Fig. 1, is pressed against a fixed roller 2 by a spring 28 which abuts at one end against the framing 7 and at the other against a flange 37 screwed on a tubular stem 50. A lug 88 on the flange is guided in a slot 39 on the framework and the compression of the spring is adjusted by turning the stem 50. The stem 50 passes through a bore in the mill frame and its outer end is screwed to receive a slotted bracket 48 and lock-nut 49. One or more cams 42 is or are mounted in the bracket 48 and are turned by a lever 16 which is locked in position by a ratchet 47. The cams bear on a rod 41 passing through the tubular stem 50 and position the rod relatively to the bearing 4 so that the clearance between the rolls may be adjusted to any position by movement of the cams. When unbreakable material passes between the rolls, the roll 4 moves apart and by means of the rod 41, cam 42, and tubular stem 50 compresses the spring 28. The roller 3 is pressed against the roller 2 by a rod 33 through a lever 30 and spring-actuated rod 14. The rod 14, Fig. 2, passes through a tubular member 26 slidably mounted in an extension 10 of the main frame. The extension is bored out to receive a spring 28, and a flange 29 screwed on the member 26 and prevented from turning by a lug 29<a>, is moved along the tubular member to adjust the compression of the spring. A pair of cams 12, fixed to a 'hand-lever 16, are pivoted by a pin 13 to the rod 14 and bear against a loose flange 23 provided with a thrust bearing 25, the position of the flange relatively to the rod 14 being adjusted by a screwed sleeve 24. The cams 12 are locked in position by a pawl 20 engaging a ratchet wheel 27 so that by releasing the cams the pressure on the roller 3 is also released. The rod 41, Fig. 1, may act on the footstep bearing of a conical grinding mill or the lever 30 and rod 14 may support the footstep bearing of the spindle of a disc mill or vice versa.
Patent GB-827890-A (GB)
Title: Improvements relating to centrifugal clutches
Inventor: KING WILLIAM FRANCIS
IPC: F16D23/12
Filed: 1957-03-16
Abstract: 827,890. Gearing for stopping and starting machinery; friction clutches. MORRIS MOTORS Ltd. March 11, 1958 [March 16, 1957], No. 8747/57. Class 80 (2). In a motor-car, a centrifugally engaged friction clutch (not shown), of the kind comprising a driven plate, a pressure plate, and a reaction plate carrying centrifugal weights, thrust springs and retractor springs, can be disengaged by the usual radial throw-out levers linked to the reaction plate and operable by a thrust bearing which is controlled by a clutch-operating linkage, the clutch linkage also being operable, when the car is stationary and the clutch is therefore automatically disengaged, by movement of a handle 21 acting through a cam-andfollower device, Fig. 1 (not shown), or a multithread quick-pitch screw 15, 17 and a clutch withdrawal lever 5A to engage the clutch, for push starts of the car engine or so that the engine may be used as a parking brake. The handle 21 acts through a cable 9 upon a lever 6 rotatable upon but fixed axially with respect to a clutch-operating rod 2, a hub fast with the lever carrying the quick-pitch thread 15 which co-operates with the internal quick-pitch thread 17 formed in a sleeve 18 connected by a pivoted fork to the clutch withdrawal lever 5A. In the position shown, the ends of the quick-pitch thread 15 abut the ends of the corresponding quick-pitch thread 17, and the centrifugallyengaged clutch is disengaged when the car engine is stopped. By operation of the handle 21, the lever 6 is turned and the quick-pitch threads 15, 17 screw one into the other, until the hub on the lever 6 engages the bottom of the sleeve 18. The thrust bearing of the centrifugal clutch is thereby moved back by the associated springs to such a position that the clutch is engaged. A spring 22 reduces the manual effort required to restore the linkwork to the normal position. An hydraulic servomotor 13A carried on the clutch housing 14 effects normal actuation of the clutch operating rod 2.