baber/WOPTO huggingface dataset:
Patent GB-978578-A (GB)
Title: Low temperature refrigeration in ethylene plants
IPC: F25J3/02
Filed: 1962-04-09
Abstract: <FORM:0978578/C4-C5/1> Refrigeration is obtained from a high-pressure liquid ethane stream having a temperature of between 0 DEG  and - 150 DEG  F. by flashing the stream from a pressure of between 75 and 400 p.s.i.g. to a pressure of 50 and 150 p.s.i.g. in the presence of a cool lighter gaseous stream supplied at a temperature below - 80 DEG F.  As shown, the refrigeration is utilized in a process for recovering propylene, ethylene and ethane from a C3-stream from a steamcracking process.  The C3-stream is passed into an absorption tower 2 operating at 300 to 600 p.s.i.a. where the C3 components are absorbed by a propylene stream supplied through a line 3, the overhead gases (containing methane, hydrogen and propylene) being passed through a line 19 and condenser 20 to a separator 22.  From the separator the overhead gases are expanded through a valve 26 to a pressure of between 50 and 150 p.s.i.g. and are propylene is recovered through a line 29.  A liquid ethane stream in a line 49 is then expanded through a valve 50 into the cold overhead gases (methane and H2) leaving the drum 28, the cold mixed gases then passing through line 32 to a heat exchanger 24 to precool the overhead gases before they reach the expansion valve and/or to provide refrigeration where required.  The liquid ethane stream is obtained from the de-methanized C3-stream leaving the absorption tower 2 through a line 4 which supplies the stream to a de-ethanizer 9.  Part of the propylene leaving the latter through line 10 is returned through line 15 to the overhead stream from the absorber 2 while the C2-stream from the de-ethanizer is passed through a condenser 35 and line 37 to a distillation tower 38 for separation of the ethylene and ethane.  Part of the liquid ethane leaving the tower 38 is supplied through line 47 and a cooler 48 to the expansion valve 50 as described above.  The cooler 48 may be cooled by the cold mixed gases from line 32.
Patent GB-456660-A (GB)
Title: Improvements in the method of coating ferrous bodies with other metals
IPC: C23C2/02
Filed: 1935-05-08
Abstract: Ferrous articles to be metallized by hot dipping are first freed from carbon, oxides, &c. by heating in an atmosphere of an oxyhalide or other volatile oxygen-yielding salt of zinc, cadmium, or magnesium, the temperature being such that carbon present on the surface of the article is converted into carbon monoxide or carbon dioxide and that oxides &c. are converted into volatile compounds, e.g. halides.  The zone in which the decarbonizing &c. is carried out is separated from the molten metal bath by packing material to prevent contact between the molten metal and the gases in the cleaning zone and between the air and the cleaned article. The volatile oxygen-yielding salts may be produced in situ, for example the article may first be dipped into a solution of zinc chloride or cadmium chloride or mixtures thereof and then passed into the cleaning zone and heated to about 500-700 DEG  C. to form an atmosphere comprising hydrochloric acid and zinc oxychloride, cadmium oxychlorhydrate, or mixtures thereof.  Volatile oxygen-yielding salts other than oxyhalides referred to are hydrated zinc and cadmium nitrates.  Specification 432,212 is referred to.
Patent GB-1110301-A (GB)
Title: Improvements in or relating to loading and unloading storage tanks in vessels floating in water
IPC: B63B27/24
Filed: 1966-03-28
Abstract: 1,110,301. Handling liquid cargo. W. F. FELL. 28 March. 1966 [29 March, 1965], No. 13614/66. Headings B7A and B7M. [Also in Division E1] A tank for storing liquids lighter than water in a vessel floating in water comprises means for maintaining the tank in communication with the water in which the vessel is floating, means for directing storage liquid into and out of the tank, the water being forced out and flowing back into the tank as the liquid is respectively directed into and out of the tank, and means for maintaining a gas pressure on liquid in the tank to keep the vessel at a desired draft. Fig. 1 shows a vessel having a tank arrangement 10 comprising a single tank 20, and a tank arrangement 11 comprising a series of tanks 95, 96, 97. The tank 20 has a compartment 30 in communication via a trough 35 and pipe 36 with an oil distributer tank 37, and a compartment 44 in communication via a trough 50, pipe 52 and valve 53 with the sea. The tank contains water up to level 85 corresponding to the normal load draft, this being maintained by gas under pressure being admitted from gas tanks 68 via pipes 69, 70, 73 to the top of the tank. To load the tank oil from distributer 37 is admitted via pipe 36 and trough 35 to top of the water in compartment, where it displaces the water and follows same via trough 32 and troughs 22 into tank 20 and via troughs 26 and 46 into compartment 44, admission of oil being terminated when trough 50 is reached. Before water is discharged into the sea through valve 53 it may be passed through oil separator 56. The gas pressure can be adjusted to control the ballast and to counteract the effect of leakage caused by damage to the hull. If the oil is being transported valve 53 can be closed during the voyage but in submarine tankers the valve remains open at all times to maintain the balance of pressure inside and outside the vessel. A submarine tanker can load and discharge while submerged by altering the gas pressure.
Patent GB-726865-A (GB)
Title: Improvements in or relating to a hollow rivet and method and apparatus for making the same
IPC: F16B19/10
Filed: 1953-05-15
Abstract: 726,865. Rivets ; screw-sockets. GOODRICH CO., B. F. May 15, 1953 [May 17, 1952], No. 13650/53. Class 89(1). [Also in Group XXII] Tubular rivets 10, Fig. 4, of metal or thermoplastic material for attachment to apertured work 40, Fig. 5, by axially upsetting and expanding a tubular portion 12 and having internal screw threads 18 for screws 20 by which structures 41 are secured thereto are provided with locking threads 18a of reduced diameter for gripping the ends of the screw 20. The rivets may be of uniform wall-thickness or in modifications may have a shank 35, Fig. 8 of uniform external diameter and a threaded portion 38 of stepped or tapered internal diameter. A projection 17 under the head 13 of the rivet engaging a recess in the work prevents rotation of the rivet. Specification 459,973 is referred to.
Patent GB-957287-A (GB)
Title: Improvements in light fittings
Inventor: KEMBER RAYMOND CHARLES
IPC: F21V19/00
Filed: 1963-04-05
Abstract: 957,287. Latches. THORN ELECTRICAL INDUSTRIES Ltd. April 5, 1963, No. 13763/63. Heading E2A. [Also in Division F4] A light fitting for a fluorescent tubular lamp comprising a channel-section member 10, a cover 11 for the open side of the member 10, and a lampholder 12 at each end, the cover 11 having two spaced apertures 14, each of which allows the passage of the head 15 of a spring- biased catch mounted within the member 10, the head 15 being formed to extend over the edge of the aperture under the influence of the spring bias and thereby lock the cover 11 in position. The catch is formed by a plate 16 with two projecting flaps 20 at its edges, and with a tab 17 which engages under a strap 18 pressed out of the member 10. The head 15 is formed by two bent-up lugs on the plate 16. The catch is thus rockable to allow the head to pass through the corresponding aperture 14 and then clicks back to hold the cover 11 in place under the action of a spring 21, which also holds the lampholder 12 in position.
Patent GB-1450572-A (GB)
Title: Electric control systems
IPC: H03K17/72
Filed: 1973-03-22
Abstract: 1450572 Control of D.C. motors DEFENCE SECRETARY OF STATE FOR 21 May 1974 [22 March 1973] 13773/73 Heading H2J [Also in Division H3] A compound wound D.C. motor 1 controlling the steering of a ship is driven in one or other direction by turning on appropriate ones of main SCRs 2, 3, 4, 5 and auxiliary SCRs 10, 11, 12, 13 which form commutating circuits with respective capacitors 6, 7, 8, 9, the SCRs being fired by trains of gating pulses which also effect repeated correction of fault conditions produced by spurious turn-on of any SCR. The gating pulses are produced by a pulse generator (consisting of a multivibrator and a monostable member) and are routed to the SCR gates by a logic circuit (not shown) controlled by the steering joystick, movement of which from a central position wherein all four auxiliary SCRs are supplied with gating pulses, causes gating pulses to be applied to a pair of main SCRs and to the auxiliary SCRs of the other pair. The gating pulses from the logic circuit are fed through respective amplifiers, each coupled to a respective SCR gate by a pulse transformer. Protection of various circuit components is provided by a current limiting resistance 14 in series with the motor field winding 15, a fuse 16, SCR snubbing circuits (not shown) and diodes across the motor shunt and series field windings.
Patent GB-202391-A (GB)
Title: Improvements in or relating to hoisting and lowering apparatus
IPC: B65G63/06
Filed: 1922-05-16
Abstract: 202,391. Mitchell, F. G. May 16, 1922. Loading-hoppers.-A skip-hoist is loaded by means of a feed-hopper discharging on to a rotating table or platform from which the material is transferred to the skip by a plough or scraper. The outlet 3 of the hopper 1 allows the material to fall on to a table 4 rotated by a motor 7. The table is, surrounded by a ring 9. Fig. 3, provided with an inwardly directed scraper 13 which directs the material through a gap 9<a> in the ring into the skip 12. Specifications 142,198, [Class 78 (iv), Loading &c.], and 202,701 are referred to.
Patent GB-187267-A (GB)
Title: Combined grinding wheel guards and rests
IPC: B24B55/06
Filed: 1921-05-17
Abstract: 187,267. Sumbling, W. H. May 17, 1921. Disc apparatus; guides and rests.-A combined guard and work-rest for a grinding-wheel comprises a plate 3 having a flange 4, which is cut away at 5 to expose the grinding-wheel D. In the plate are provided two slots 6, F, the slot 6 fitting over a boss B surrounding the arbor of the grinding-wheel and the slot F receiving a bolt 8, the head of which fits between the walls of a countersunk part 10 of the slot. The bolt also passes through a slot 7 formed in a bracket E on the frame of the machine; this allows of transverse and circumferential adjustment of the guard as the wheel wears away. The guard has a vertical bracket 14 projecting therefrom, having therein a slot 15 countersunk to receive the head 17 of a bolt 18, which passes through a slot 24 in the arm 22 of a right-angled bracket 23, a nut 20 serving to secure the bracket in any required position. The horizontal arm 25 of the bracket 23 is slotted at 28 to receive a bolt 27 carried by a rest 26, which is secured in adjusted position by a nut 29; the rest may thus be adjusted to provide an horizontal surface after adjustment of the guard. The slot 7 may be replaced by a round hole; the slot 6 may have only one closed end. Specifications 136,633 [Class 80 (iv), Mechanism &c.], and 161,354 are referred to.
Patent GB-290573-A (GB)
Title: Improvements in guiding arrangements for suspended high speed railway vehicles
IPC: B61B13/04
Filed: 1928-05-10
Abstract: 290,573. Kruckenberg, F. May 14, 1927, [Convention date]. Systems ; rope railways; elevated railways.- Suspended vehicles free to swing vertically and laterally, have these movements positively prevented at stations. The vehicle 21, Fig. 2, has a depending fin 22 engaging rollers 16, 17, the vehicle being gradually restrained by flaring sets' of rollers coupled together by a chain and acting against springs &c. The entrance rollers may be replaced by a flexible steel band 26, Fig. 5, connected to dash-pots 27 which harden towards the station. Two sets of rollers may be arranged diagonally to engage surfaces under the vehicle, or the vehicle head. Fig. 6, may be arranged to engage rollers 29. The vehicle may carry a keel lowered into a trough of liquid at the station entrance. One set of rollers 30, Fig. 8, may be used mounted in pairs on springs 31 and leading to flanged rollers 32. The rollers' may be driven, to start or engage the vehicle, or they may be connected by an endless driven band. Specifications 263,785 and 277,955, [both in Class 55 (i), Coking &c.], are referred to.
Patent GB-1127610-A (GB)
Title: Improvements in stud locating jigs for facilitating the welding of studs to steel structural members
Inventor: HARTILL JOSEPH THOMAS
IPC: B23K9/20
Filed: 1965-04-01
Abstract: 1,127,610. Welding by pressure. TEES SIDE BRIDGE & ENG. WORKS Ltd. 17 May, 1966 [1 April, 1965], No. 13847/65. Heading B3R.  A jig for facilitating the welding of studs to a structural member comprises a bar 20 having means for adjustably locating elements thereon, a locating element 22 adapted to be adjustably secured to the bar and to engage an element on or a part of the structural member to restrain movement of the bar in a direction longitudinally thereof and relative to the structural member, another locating element 26 adapted to be adjustably secured to the bar and to make abutting engagement with the structural member or with an element thereon to restrain movement of the bar relative to the structural member in a direction transversely of the bar and a series of locating elements 36 adapted to be adjustably secured to the bar and each having in an edge thereof a recess adapted to receive the shank of a stud or a stud surrounding element. The bar 20 has bolt holes 21 and the element 22 has elongated holes through which and holes 21 bolts pass to secure the element adjustably to the bar. The element 22 at one end of the bar has its edge recessed at 25 to embrace a stud 34 already welded to the structural member. The element 26 similarly bolted to the other end of the bar has a pin 29 of square section slidable in the element to engage one edge of the structural member 33 which may be a flange 33 of a steel beam. The elements 36 have elongated holes whereby they are adjustably secured to the bar and have arcuate recesses 39. The bar is clamped to the flange by clamps 35 so that the element 22 engages a stud 34, the pin 29 on the element 26 engages an edge of the flange and the elements 36 overlie the flange. Ceramic ferrules are placed in the recesses 39 and the ends of steel studs 41 are placed in the ferrules and electric are welded to the flange. The jig is removed and the ferrules are broken and removed. To locate a second row of studs after welding the first an element (46), Fig. 11 (not shown), with a recessed edge (47) is bolted to the side of the bar remote from the series of recessed elements to embrace one of the welded studs and a further element (48) without a recessed edge is bolted to the bar to engage another welded stud. To locate rows of studs transversely of the flange a short bar is provided with a bar locating element and a series of stud locating elements.
Patent GB-197200-A (GB)
Title: Improvements in winder gear for lawn tennis posts and other posts carrying nets for use in games
IPC: A63B61/02
Filed: 1922-05-17
Abstract: 197,200. Mousley, F. May 17, 1922. Cord strainers. - A worm wheel B actuated bv a worm D and handle E is mounted centrally between two drums C, C<1> on which cords F, F<1> supporting tennis or like nets are strained. The cords may be the free ends of a loop secured to the other post or may be two separate cords. Pulleys G, G<1> may be provided at the top of the post.
Patent GB-555086-A (GB)
Title: A portable mechanical saw
IPC: B23D49/16
Filed: 1941-10-28
Abstract: 555,086. Portable mechanical saws. PHILLIPS & POWIS AIRCRAFT, Ltd., and ROBERTSON, F. H. Oct. 28,1941, No. 13875. [Class 145 (ii)] A portable driving head comprising an electric motor 6 shown in dotted lines manipulated by a hand-grip 5 and driving a countershaft 7, is adapted to drive a reciprocating pad saw 15 by securing to it by a clamping band 19 two supporting arms 17, 18 for a guide 16 in which the saw-carrying chuck 14 is reciprocated by a driving connection 11 with a disc 10 mounted on countershaft 7. According to the Provisional Specification the driving head may itself be driven by a flexible cable &c. instead of by an electric motor.
Patent GB-543773-A (GB)
Title: Spraying metals
IPC: C23C4/06
Filed: 1940-09-06
Abstract: 543,773. Coating metallic surfaces. LUMB, C. F. Sept. 6, 1940, No. 13953. [Class 82 (ii)] Metallic surfaces are coated with metals by spraying a mixture of aluminium oxide and a metal in finely divided or powdered form through a neutral or reducing flame to combine the oxide with the metal or to reduce the oxide and form an alloy with the metal. The metals employed are aluminium, zinc, tin, copper, cadmium, brass or nickel. In an example a mixture of 20 per cent. aluminium oxide with zinc or tin was used.
Patent GB-880358-A (GB)
Title: Improvements in machines suitable for rolling fibrous rod-like material
Inventor: HAWTIN SELWYN GEORGE
IPC: A24D3/02
Filed: 1958-05-02
Abstract: 880,358. Making cigarette filters. BRITISH CELANESE Ltd. May 1, 1959 [May 2, 1958], No. 14013/58. Class 130. [Also in Group IX] To improve the form and surface of a cigarette filter rod 47, Figs. 1 and 2, made of the fibrous material described in Specification 795,445, the rod is fed lengthwise by opposed rotary discs 26, 27 which are oscillated 180 degrees out of phase by cranks 35 to roll the rod to and fro between them as it advances under the control of guide bars 43, 44. The discs 26, 27 are mounted on frames 21, 27 pivoting about an intermediate shaft 13 of the disc drive 37 ... 40. The discs 21, 27 dip into a bath 42 of heated water or have a radiant electric heating element 42<SP>1</SP> between them, and may be arranged parallel or slightly convergent in the direction of rod feed. By providing additional bars 43, 44 two or more rods may be fed simultaneously, or a second rod may be fed oppositely between the lower disc halves. In a modification, rods 47a, Fig. 4, are fed between discs 26a, 33a under the control of guide bars 43a, 44a. Reference is made to a cellulose acetate rod having about 4,500 filaments which is reduced from 12 mm. to 8 mm. diameter during rolling and which is rolled wet or after drying according as to whether a water bath or some other heating means is used. Specification 830,805 also is referred to.
Patent GB-611831-A (GB)
Title: A combined portable mixer and barrow
IPC: B28C5/18
Filed: 1946-05-10
Abstract: 611,831. Portable mixers and barrows. LIGHTBURN, H. A. May 10, 1946, No. 14121. Convention date, June 19, 1945. [Class 108 (i)] [Also in Group II] A concrete mixer which can be used as a wheelbarrow' comprises a tubular frame 1 carrying a wheel 3 and U-shaped member 5 forming legs. A tubular member 9 carried by brackets 8 supports a shaft 10 projecting coaxially from the base 14 of a barrel 12. The barrel carries a conical reinforcing member 15, the surface of which is radially slotted and the metal pressed into the form of teeth to act as a crown-wheel in engagement with a bevel pinion 27 which is rotatable by a cranked handle 20. Direct rotation of the barrel may alternatively be effected by a handle 19. The bracket 23 carrying the handle 20 is adjustable around the member 9 to adjust the position of the handle. Rotation of the barrel when the frame is tipped to discharge it may be prevented by a hinged catch 32 which swings into locking engagement on tipping. The pinion 27 may be disengaged from the wheel 15 by sliding axially, or adjusted on eccentric bushes.. Mixing blades 40 are provided within the barrel.
Patent GB-725041-A (GB)
Title: An improved dropper closure device for dispensing liquids in drops
IPC: B65D47/18
Filed: 1953-05-20
Abstract: 725,041. Drop delivering stoppers. MARTINELLI, I. May 20, 1953 [May 23, 1952], No. 14153/53. Class 125 (3). A dropping stopper of plastic or similar elastic material has a hollow cylindrical part 1 with a flange 2, and a lug 4 of truncated conical shape having a slot 5 and extending from the bottom 3 of the cylinder which has an air hole 6. The bottle may be closed by a screw cap the flange 2 forming a gasket. In a modification the stopper is secured to the bottle by screw threads.
Patent GB-136470-A (GB)
Title: Improvements in Wheels for use on Motor and other Vehicles.
Inventor: SIDDELEY JOHN DAVENPORT
IPC: B60B3/02
Filed: 1919-06-04
Abstract: 136,470. Siddeley, J. D. June 4, 1919. Disk wheels. - Wheels for motor and other vehicles consist uf a single smooth disk A which is integral with the base A<4> and one flange A of the rim, and tc which the other flange B of the rim is attached to permit easy removal of the tyre. The disk is stepped to one side as at A<3> to take the flange B, which is secured by bolts C. A brake drum consisting of a ring D flanged at D is secured on a shoulder A<6> by bolts E, which are formed with conical shoulders seated in conical recesses in the flange D<2>, and the nuts D<4> may also be coned to engage similar recesses in the disk A.
Patent GB-662686-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R19/22
Filed: 1949-05-27
Abstract: 662,686. Voltage measurement; hand contact-appliances. SANGAMO WESTON, Ltd., and McBRIDE, M. G. Feb. 1, 1950 [May 27, 1949], No. 14272/49. Classes 37 and 38 (i). Crystal diodes are used in a voltage doubler rectifying circuit directly connected to a moving coil instrument for A.C. voltage measurements. In Fig. 1, germanium diodes 19 form with condensers 20 a voltage doubler circuit contained within a metallic tube 16 so that the whole constitutes a test probe 1 which is connected via screened twocore cable 2 with a moving coil voltmeter 35 which together with range changing switches and condensers is housed within a metallic container 3. If the voltage to be measured is at a frequency of the order of 100 Mc/s., the capacitance in the rectifying circuit is provided only by the probe condensers 20; if the voltage is at lower radio frequency, for example below 15 Mc/s., the capacitance of condensers 29, 30 supplements that of condensers 20; for voltages at power or audio frequencies the rectifying circuit comprises condensers 20 and condensers 31, 32. The required setting is obtained by operating ganged range selection switches 27, 28. Three position ganged switches 33, 34 are also provided so that in addition to full-wave measurements the positive and negative halfcycle peak voltages may be separately measured utilizing one and the other of germanium diodes 19. Voltage ranges are selected by operating ganged switches 38, 39 to adjust respectively the shunt and series resistances 36, 37 associated with the moving coil instrument 35. Fig. 3 shows a preferred construction of the test probe 1 with ceramic condensers 20 and welded contact germanium diodes 19 appropriately interconnected and with the metal tube 16 and test prod 17 to produce the required voltage doubler arrangement. The prod 17 set within a polythene insulator boss 40 closing one end of the tube 16 forms the " live " input terminal and the crocodile clip 18 the " earthy " input terminal connected to the metal tube 16. The latter is covered with a protective coating 47 of suitable insulating material, for example polyvinyl-chloride.