baber/WOPTO huggingface dataset:
Patent GB-322721-A (GB)
Title: Improvements relating to multi-stage steam-jet ejectors
IPC: F01B25/00
Filed: 1929-05-16
Abstract: 322,721. Weir, Ltd., G. & J., and Sim, J. May 16, 1929. Air inducers.-In multi-stage steam-jet ejectors for discharging air from condensers, a surfacecondenser s and a direct-contact condenser e are arranged in series with a surface-condenser f adjacent the first stage steam-jet. The cooling- water of the first surface condenser s is delivered into the feed system by the pipe u. In the arrangement shown, the air, &c. from the condenser passes into the first ejector having a steam-jet a and combining nozzle b and from thence through a surface condenser f into the chamber of a direct-contact condenser e. The air and uncondensed vapour then passes through a second ejector c, d and a second surface condenser s into a chamber v. The air is discharged to the atmosphere and the liquid to the feed tank. The condensate from the main condenser is used as cooling fluid in the condensers f, s, a branch x passing to the nozzles of the condenser e the condensate of which passes to the main condenser. Similar arrangements may be adopted in a three-stage ejector system.
Patent GB-701937-A (GB)
Title: Improvements in or relating to tripod stands for cameras, theodolites and other instruments
Inventor: DIXON SYDNEY ARTHUR
IPC: F16M11/34
Filed: 1951-06-27
Abstract: 701,937. Tripods. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 20, 1952 [June 27, 1951], No. 15303/51. Class 52(3) A tripod stand has three adjustable ties which extend inwardly from the three tripod legs 11 and are pivotally connected to an annular member 28, and a universally mounted platform 20 from which extends a rigid stem 26 with which the inner members of the ties co-operate for setting and holding the platform angularly in relation to the vertical. The tripod legs are pivotally attached to a head 13 mounted on gimble rings 15, 17 the ring 17 carrying a housing 18 for a thrust bearing 19 carrying the platform 20. Also secured to the inner ring 17 is a tubular extension 21 to which is attached the lower disc 22 of two annular friction discs between which is a third disc 23 rotated by the platform 20. The upper disc 42 is constrained for rotational movement with the extension 21 but can slide axially to enable the braking effect to be altered by a hand screw 45. The telescopic ties comprise a solid rod 29 connected to the leg 11 by a pivot 30 and a tubular member 31 connected to the annular member 28 by a pivot 32. Diametrically opposite each tie is a roller 33 held in position by a screw 34 mounted in a threaded member 35 pivoted to the annular member 28 so the stem may be locked in its adjusted position. A thumb screw 36 holds the telescopic stay in its desired position.
Patent GB-991834-A (GB)
Title: Improvements in and relating to mixed fertilisers
Inventor: SHERRINGTON PETER JOHN
IPC: B01J2/10
Filed: 1963-04-18
Abstract: A granulated fertilizer comprises ammonium nitrate, potassium chloride or urea is provided with a coating of ammonium phosphate to reduce its caking tendency.  A desired product having a particle size of 1.5-4 mm. is produced in a cyclic process by passing a melt, solution or slurry of a raw fertilizer material containing 0.5-25% of water and undersize and ground oversize product optionally together with solid raw fertilizer material into a granulator, passing the resulting granules into a rotary dryer with lifting flights in co-current with hot drying gas, coating the granules in the dryer by injecting a slurry of mono/di ammonium phosphate containing 8-25% of water into the dryer near its inlet, sieving to obtain the desired product, and recycling undersize and ground oversize product.  The moisture content at the outlet of the granulator and dryer may be up to 4% and about 0.3% respectively. The ratio of recycled material to product may be 2-5 to 1.  The granulator may be a rotary drum or paddle mixer.  The slurry may be atomized into the dryer in a surrounding stream of air.  The product may be coated with 2% of china clay.
Patent GB-681696-A (GB)
Title: Improvements in angle cleats for securing purlins and rails to ribs or like elements
Inventor: BOOTH RAYMOND
IPC: E04B1/58
Filed: 1951-06-28
Abstract: 681,696. Joints for constructional metalwork. NISSEN BUILDINGS, Ltd. June 28, 1951, No. 15382/51. Class 20(ii) An angle cleat 2, e.g. for securing purlins to ribs has projections 5 on one side punched out from the opposite face which engage with the edge of the rib 3 to prevent the cleat turning on the securing bolt 4.
Patent GB-1373367-A (GB)
Title: Hydroxyalkyl substituted 4,5-dihydropyridazin 2h-3-ones
IPC: C07D237/32
Filed: 1971-11-09
Abstract: 1373367 6-(p-Chlorophenyl)-2-(2-hydroxybutyl)4,5-dihydropyridazin(2H)-3-one SANDOZ Ltd 9 Nov 1971 [12 Nov 1970 27 July 1971] 15426/74 Divided out of 1373366 Heading C2C The novel title compound is prepared either by reaction of 3-(p-chlorobenzoyl)-propionic acid with 1-hydrazino-2-butanol or 6-(p-chlorophenyl)-4-5-di-hydropyridazine(2H)-3-one with 1-bromo-2-butanol. Pharmaceutical compositions in conventional forms for oral administration and having tranquillizing and muscle relaxing activity comprise the above novel compound and a carrier or diluent.
Patent GB-781734-A (GB)
Title: Automatic continuously operable weighing-machine
Inventor: HOWARD THOMAS PARKER
IPC: G01G13/00
Filed: 1955-05-27
Abstract: 781,734. Weighing apparatus. PNEUMATIC SCALE CORPORATION, Ltd. May 27, 1955, No. 15428/55. Class 143 In an automatic feed weigher a plurality of weighers are continuously moved in a closed path, each weigher receiving a measured bulk charge during movement through one part of the path, and a dribble feed during movement through another portion of the path. Manually adjustable bulk feeding chambers 72, weighers 20, feeding shoots 21 and the terminal pulley of a conveyer 84 are rotated on a shaft 76. A non-rotatable feeding hopper 10 is divided to provide a bulk feed compartment fed by a pipe 30, and a dribble feed compartment fed from pipes 42, 44 by a pair of vibratory feeders 38. During movement of the chambers 72 under the bulk feed compartment they are filled; next, as they pass under the dribble feed compartment, shutters 104 closing their lower ends are opened to empty their contents into associated weighers which thereafter receive their dribble feed through the chambers. On completion of the charge in each weigher, the associated shutter 104 is moved to a closed position, and the weigh pan door 280 is opened to transfer the charge into a container 22 carried on conveyer 84 beneath the shoot 21. Each weighing mechanism is locked during the bulk feeding and emptying operations. Means are provided for preventing a shutter 104 from opening if there is no container located beneath the associated weigher. Should the weight of the bulk feed exceed the total required weight, an indication is given to the operator to warn him that the volume of the chamber 72 must be reduced. This adjustment is made by rotation of screws 101 through manually operated chain and sprocket gearing 103, 113. Separating apparatus.-Means are also provided for detecting and indicating the presence of a container filled with an under weight charge, and for discharging the container from the machine. Spring balances.-Each weigh pan is supported by four spring plates 136, 138 and a coil spring 152, and carries a plate 212 which co-operates with a compressed air nozzle 210. Oscillation of the pan is damped by a dash pot 164. Movement of the plate 212 towards the nozzle 210 increases the pressure in a chamber 214 (Fig. 15), so expanding bellows 216 against the pressure of a spring 232. This expansion causes a secondary valve 236 to move to the left to open a jet 240 thus reducing the pressure in a chamber 246 and permitting a spring 251 to move a piston rod 249 downwardly to trip the closing mechanism for the associated shutter 104. Specification 690,324 is referred to.
Patent GB-560725-A (GB)
Title: Improvements connected with fluorescent tubular discharge lamp fittings
IPC: F21V19/00
Filed: 1942-11-03
Abstract: 560,725. Tubular lamp fittings. REVO ELECTRIC CO., Ltd., and REEVES, F. H. Nov. 3, 1942, No. 15442. [Class 75 (iv)] [Also in Group XXXVI] A fluorescent tubular discharge lamp d is supported at one end in a rectangular or semicylindrical trough e by a pin-and-socket connection c<2> with a holder c rotatably mounted in a flange b<2> depending from a plate b which is slidable on a guide a and is anchored by a spring g to a bracketf on the roo for the trough e. The holder c engages the flange b<2> by an annular groove formed between a shoulder c<1> on the holder and an annular disc h secured to the holder by screws j. Projections a<1> on the guide a limit the movement of the plate b. The Provisional Specification states that. the spring mounting device may be used in association with a bayonet slot fitting.
Patent GB-1079331-A (GB)
Title: Improvements in or relating to large-capacity double-suction centrifugal fans, blowers or the like
Inventor: WHITE WILLIAM WALLACE
IPC: F04D25/16
Filed: 1964-04-15
Abstract: 1,079,331. Centrifugal fans &c. JAMES HOWDEN & CO. Ltd. April 12, 1965 [April 15, 1964], No. 15565/64. Heading F1C. Two single-inlet impellers 10, 11, Fig. 2, on a common shaft 12 are housed in separate volute casings 13, 14, with a common inlet duct 15 for the two casings filling the space between the casings. Frusto-conical inwardly-tapering guide conduits 18, 19 on opposite sides of the inlet duct 15 project into the respective casings to deliver fluid to the impeller eyes. A splitter plate to divide the flow, and spin vanes may be provided in the inlet duct 15.
Patent GB-1457326-A (GB)
Title: Blind riveting
IPC: B21J15/16
Filed: 1974-04-09
Abstract: 1457326 Riveting TUCKER FASTENERS Ltd 9 April 1974 [10 April 1973] 15573/74 Heading B3U A blind riveting tool comprises a mandrel gripping chuck mechanism 24, 25, 27 which is axially movable by motor driven threaded drive members 15, 18, means 40, 41 for preventing rotation of one of the members 18 during the rivet setting and return stroke of the chuck mechanism and a one-way slip clutch 33, 38 to enable the one member 18 to rotate when the chuck mechanism abuts a stop 6 at the end of its return stroke. An externally threaded drive shaft 18 carrying the chuck mechanism 24, 25, 27 is connected by screws 34 to a clutch sleeve member 33 having dog claws 35, Fig. 4, against which a similar clutch member 38 encircling the shaft 18 is urged by a spring 39. The clutch member 38 is provided with pins 40 projecting into longitudinal slots 41 in a housing 5 of the tool to allow axial movement of the clutch member 38 but prevent it from rotating. In operation, a spindle 8 carrying a nut 15 in threaded engagement with the shaft 18 is rotated by an electric motor to cause the shaft 18 to move rearwardly so as to set the rivet. When a pin 11 is moved by a pusher 21 on the shaft 18, a microswitch 14 is operated to reverse the electric motor and move the shaft 18 forwardly. The chuck jaws 25 are forced apart when they engage a nosepiece 6 allowing the broken mandrel to be ejected by a spring biased ejector 30. When a jaw case 24 abuts the nosepiece 6, the force of the clutch spring 39 is overcome and the clutch member 38 cammed out of contact with the clutch member 33 thereby allowing the shaft 18 to rotate with the nut 15.
Patent GB-981888-A (GB)
Title: Improvements in or relating to dosimeters
IPC: G01T1/11
Filed: 1961-05-01
Abstract: <PICT:0981888/C4-C5/1> <PICT:0981888/C4-C5/2> A radiation dosimeter comprises a thermoluminescen material mounted in an inert environment in a hermetically sealed envelope, the envelope being at least in part transparent or translucent to permit the transmission of light emitted by said material when heated above its glow temperature.  In the embodiment shown in Fig. 4, the thermoluminescent material is coated on a cylinder 1 and may be heated to its glow temperature by an electrical filament 2.  Alternatively, the material may be coated on the filament itself or on the inner surface of the bulb 3 or on a graphite plate connected to the filament wires, the plate replacing the filament. Alternatively, the graphite plate 8 with its thermoluminescent coating 1 may, as shown in Fig. 8, be placed in an aluminium box 12 with a glass window 13, and one of the leads 18 made hollow so that the box may be evacuated.  The graphite plate may also be formed as a cylinder. The dosimeter may be heated inductively by being passed through a high-frequency heating coil.  The thermoluminescent material may be manganese activated calcium fluoride containing a small amount of an oxide mixed with a binder, for example, potassium silicate.  The thickness of the thermoluminescent coating is about 2-100 mg. of the material per square cm.  An alternative thermoluminescent material is CaSO4(Mn). The envelope may be evacuated to 10-3 mm. Hg. and then filled with argon.
Patent GB-156279-A (GB)
Abstract: 156,279. Marks, E. C. R., (Wilkinson Bros. & Co.). June 16, 1919. Adding-apparatus, keyboard mechanism; transfer mechanism.-Relates to improvements in means for controlling, from the special keys, the actuating mechanism for the restoring bar of the transfer mechanism in calculating-machines of the type described in Specification 113,841. The special keys 47, 48, and 87 for total, sub-total and non-add operations respectively disable the normal restoring-bar actuating-means as in the prior Specification, but by means of the detent plate 2 and not by the lever therein described. The detent plate carries a spring-controlled pawl 110 with a stud 111 which on operation of one of these three keys strikes a bent lever 77 which rocks through a pin and slot connection a lever 49 pivoted at 56 and carrying, on an arm, a spring- controlled pawl 57 with a nose 76. On such operation the nose 76 dips under and lifts a stud 58 on the latch 30 resulting in the inaction of the toggle 19, 21 and the restoring bar 14 as in the prior Specification. The non-print key 103 on depression displaces the pawl 110 by engaging its tail and operation of the toggle and restoring bar takes place normally.
Patent GB-253946-A (GB)
Title: The manufacture of solutions containing organic phosphorus and complex gold compounds
IPC: A61K47/02
Filed: 1926-06-21
Abstract: 253,946. Cassella & Co., Ges., L., June 22, 1925, [Convention date]. Hypodermic injections.-A preparation for. hypodermic injection which can be sterilized without decomposition is made by mixing goldsodium thiosulphate, free sodium thiosulphate, and a salt of a p-dialkylaminoaryl phosphinous acid and water. The preparation of the phosphinous salts is described in Specification 214,836, [Class 1 (iii), Oxides &c., Metallic]. In an example 100 grs. gold-sodium thiosulphate and 50 grs. sodium thiosulphate are dissolved in 5 litres of water and the solution is mixed with 50 grs. of the sodium salt of p-dimethylamino tolyl phosphinous acid, the mixture being sterilized by, a current of steam. It is stated that the proportions may be varied within wide limits. The Specification as open to inspection under Sect. 91 (3) (a) contains an example in which 100 grs. gold-sodium thiosulphate are mixed with 50 grs. of the sodium salt of p-dimethylamino-tolyl phosphinous acid and 30 grs. sodium thiosulphate and the mixture is dissolved in 20 litres of water, filtered, introduced into ampoules, and sterilized at 100‹ C. for 30 minutes in a current of steam. This subject-matter does not appear in the Specification as accepted.
Patent GB-374255-A (GB)
Title: Improvements in machines for stemming tobacco leaves
IPC: A24B5/12
Filed: 1931-05-28
Abstract: 374,255. Tobacco-stemming machines. TOBACCO STEMMING MACHINE CO., 2600, Otey Street, Lynchburg, Virginia, U.S.A.-(Assignees of Gooch, C. W. ; 1020, Federal Street, Lynchburg, Virginia, U.S.A.) May 28, 1931, No. 15677. Convention date, Aug. 6, 1930. [Class 130.] In order to retain the tips of the stems with the leaf portions of the tobacco, a knife is oper. ated to. make a cut or crease across the stems before they enter the stemming devices. The knife 4, Fig. 1, is carried by a rotating arm 5 carried by a shaft 6 driven by sprockets 7, 8 and chain 52 from the shaft 9, so that the knife makes two revolutions for the passage thereunder of each set of leaves 53 carried by grippers 1, 2 on chains 54, 55. The knife 4 barely touches the bedplate 12, thereby effecting a out or crease in the stems during one revolution, the second revolution being idle. The sprocket 7 is adjustably coupled to the shaft 6 for varying the position of the cut or crease. Means such as the following may be provided for ensuring that the cut or crease is made at a definite distance from the tips of the leaves, whether they be long or short. A feeler roller 13 engaging the leaves is carried by an arm 15 on a shaft 16, Figs. 1 and 8, another arm 18 on which engages a cam 21 driven at half the speed of the sprockets by gearing 23, 24. This cam serves to raise the feeler so that the grippers 1, 2 may pass under it, after which the feeler falls on to the leaf stems. As the leaves pass from under the feeler, the feeler falls to its lowest position and a pin 27 on a disc 26 carried by the shaft 16 pushes against the end of a latch 28 as shown in Fig. 1. This brings a pawl 43 on an arm 39 into engagement with a ratchet 34 on the shaft 9. The pawl 43 and arm 39 are thus raised, thereby tripping a catch 36 from a pawl 29 which then engages with a square-toothed ratchet 33 on the shaft 9. As the pawl 29 is carried by the sprocket 8, this is therefore rotated so as to operate the knife 4. After one revolution of the sprocket 8, the pawl 29 is again released from the ratchet 33 and the parts assume the position for a repeated actuation.
Patent GB-642851-A (GB)
Title: Process for the cleansing and recovery of filter pulps
IPC: B01D41/02
Filed: 1948-06-11
Abstract: A process for cleaning soiled filter pulp, particularly cotton or cotton and asbestos pulp, comprises mixing the pulp with water in a pulp washer, transferring the mixture to a rotating imperforate centrifuge to stratify the pulp and dirty water, skimming off the dirty water without delay, stopping the centrifuge and removing the cleaned pulp, and repeating the cycle of operations until the pulp is sufficiently clean.  A detergent may be mixed with the washing water. The Specification refers to centrifuges of 4 feet diameter rotating at upwards of 700 r.p.m., and states that the centrifuge described in Specification 450,130 and having skimmers according to Specification 450,131 may be used.
Patent GB-770942-A (GB)
Title: Packaging machines
Inventor: MERRIMAN HORACE BARTLETT
IPC: B65B13/22
Filed: 1955-06-02
Abstract: 770,942. Tensioning bands. GERRARD INDUSTRIES, Ltd. June 2, 1955, No. 15897/55. Class 45.  In a power driven machine for tensioning a metal strand about a package and sealing the strand ends at a predetermined tension comprising a tensioning drum 1, a carrier plate 2 rotated by the drum during tensioning, a sector plate 3 adjustably mounted on the carrier plate and an arm 11 contacted by the sector plate to initiate the operation of the sealing mechanism, the degree of tension is determined by the setting of a control which in one position locks the sector plate to the carrier plate and in the other position is rotated to permit relative adjustment of the two plates. The sector plate is slidably mounted on the carrier plate by means of retaining pins 4. The control comprises a pinion 5 integral with a shaft 6 and urged by a spring 9 to engage teeth on the periphery of the plates to lock them together. The pinion may be moved axially to engage only the teeth on the sector plate so that rotation of the pinion adjusts the sector plate on the carrier plate. The knob 7 of the shaft may be provided with a pointer 8. The invention is applied to the machine described in Specification 749,562.
Patent GB-896401-A (GB)
Title: Improvements in electromagnetic multi-contact relays
Inventor: SNELL MAURICE SAXON
IPC: H01H3/00
Filed: 1957-05-21
Abstract: 896,401. Electromagnetic relays. DOWTY ELECTRICS Ltd. Aug. 20, 1958 [May 21, 1957; Oct. 17, 1957], Nos. 16046/57 and 32403/57. Class 38 (5). A multi - contact electromagnetic relay has one or more operating rods 17 of slightly elastic material such as nylon, with pairs of projections 18, 19 which grip the moving contact strips 8, 9 between them. The armature 4 is pivoted at 5 and has secured to it by a spring clip 25, a pin 24 which engages in a slotted hole 23 in the rod 17 for each bank of contacts (only one bank shown). During assembly the rods 17 are passed through holes 21 (Fig. 6) in the moving strips 8, 9 and turned through 90 degrees so that the projections 18, 19 grip each strip. The strips are all of channel section for the major part of their length so that they tend to bend about their flat part adjacent to the supporting stack 15. This arrangement forms a pivoted moving contact with a rigid connection to the operating-rod 17, so that if one contact pair are welded together the other contact cannot operate. The fixed contact strips 11 . . . 14 are located by nylon nuts 29 on a metal rod 28 which passes through clearance holes 27, 31 in the fixed and moving contact strips.
Patent GB-161056-A (GB)
Abstract: 161,056. Odierno, G. March 10, 1920. Mud-guards carried by wheels. - Mudguards of the type comprising a strip of fabric 8 secured directly to the side of the tyre are reinforced by a strip of metal 11 doubled over the outer edge. The inner edge of the fabric strip may be secured to the tyre by vulcanization, but preferably by rivets 12, the inner heads 13 of which are covered by the tyre lining.
Patent GB-961623-A (GB)
Title: Improvements relating to rear view mirrors for motor vehicles
Inventor: NEALE DAVID WARWICK
IPC: B60R1/076
Filed: 1962-04-27
Abstract: 961,623. Rear-view mirrors. RAYDYOT Ltd. April 19, 1963 [April 27, 1962 (2)], Nos. 16122/62 and 16276/62. Heading B7J. [Also in Division E2] A vehicle "swingback" " rear-view mirror comprises a mirror arm 11, Fig. 4, having a spindle 13 journalled in a generally cylindrical pressed sheet metal sleeve 40 inserted into a base part 42 secured to the vehicle body 18, a radial peg 45 on the spindle 13 being urged by a spring 46 into engagement with the profiled edge of the end of the sleeve. As shown in Fig. 5, the end edge has a plurality of seats 44. In another embodiment the sleeve is provided with a helical slot between its ends, to receive the peg, as described with reference to Figs. 1 to 3 (not shown).
Patent GB-184317-A (GB)
Title: Improvements in or relating to aileron control-mechanism
IPC: B64C13/00
Filed: 1921-06-13
Abstract: 184,317. Hagg, A. E., and De Havilland Aircraft Co., Ltd. June 13, 1921. Steering and balancing.-Aileron controls are connected so that, for a given movement of the control-lever, the upwardly-moved aileron is displaced through a greater angle than the downwardly-moved aileron. As shown in Fig. 1, ailerons 10 are connected bv stiff members 11 to arms 12 fixed to sprocket wheels 13, which are rotated by an endless chain 14 from a lever 15 and arranged so that the angle between each pair of members 11, 12 is acute when the ailerons are in the zero position. When one pair of members 11, 12 reaches its dead-centre position, further movement of the control levers will be helped by the air pressure on the corresponding aileron. In order that a breakage of the chain 14 may still leave one of the ailerons under control, either a lever 20 is pivoted at 21, and connected at its ends to each lap of the chain and stiffly connected to the lever 15, or each lap of the chain is connected to one of the two bellcranks 36, 37 shown in Fig. 6. These bell-cranks are moved in opposite directions from the lever 32 through rods 35 and a rocking lever 34.