baber/WOPTO huggingface dataset:
Patent GB-1175689-A (GB)
Title: Method of Making Fluid Separation Units
IPC: B01D63/02
Filed: 1966-12-13
Abstract: 1,175,689. Making fluid separation units. E.I. DU PONT DE NEMOURS & CO. 13 Dec., 1966 [22 Dec., 1965], No. 23140/69. Divided out of 1,175,687. Heading B5A. The fluid separation unit described in Specification 1,175,687 is made by a method which includes the gathering of hollow filaments of a polymeric material into an elongated bundle, Fig. 7, and the surrounding of the bundle with a flexible porous sleeve member 112, Fig. 8, which is extended along the bundle to laterally compress the bundle. A plurality of bundles 112 are grouped and located in a second sleeve 113, Fig. 11, the assembly then being located in an elongated casing on the ends of which are mounted moulds to which resin is supplied for the centrifugal casting of end wall members. The method of centrifugally casting the end walls is described in Specification 1,175,690.
Patent GB-774208-A (GB)
Title: Combined electrical switch and socket outlet
Inventor: COOPER BRUCE LUSK
IPC: H01R13/70
Filed: 1954-08-10
Abstract: 774,208. Two-part couplings. D. S. PLUGS, Ltd. Aug. 4,1955 [Aug. 10, 1954], No. 23152/54. Class 38 (1). [Also in Group XXXVII] A combined switch and switched socketoutlet suitable for controlling a cooker and toaster, respectively, has the switch and socket mounted at opposite ends of a base 11 and interconnected by strips 15 one on each side of a centre rib 13 and each extending into a depression 14 so as to underlie a U-shaped socket 18. The base is grooved to receive a rod 23 carrying a cam 26 for each strip, the rod being operable by a dolly 25 so as to depress each strip against the action of a reinforcing strip 21 so as to separate contacts on the strip and socket. The switch dolly 35 carries a bifurcated cam 36 operating on two movable strip contacts 28 against the action of springs 33. The contacts 28 are each held by a rivet 29 and spring 30 against a terminal strip 28 secured to, and forming an extension of, strip 15. The device may be adapted to flush or surface fitting, and the several switch contacts may be silvered.
Patent GB-641813-A (GB)
Title: Improvements in or relating to method of coagulating synthetic rubber latices
IPC: C08C1/14
Filed: 1947-08-21
Abstract: Synthetic rubber latices prepared by emulsion polymerization in the presence of a water-soluble fatty acid soap are coagulated by salting out a layer of the soap upon the particles in the latex and then acidifying the soap-containing particles to liberate fatty acid to cause the particles to grow to crumbs of the desired size.  The synthetic rubber may be a polymer of butadiene-1,3, isoprene, piperylene-2,3, dimethyl butadiene-1,3, or chloroprene; or a copolymer of one of these monomers with acrylonitrile, methacrylonitrile, methyl methacrylate, styrene, methyl isopropenyl ketone or vinylidene chloride.  The preferred salts are sodium chloride and sodium sulphate, although other inorganic alkali metal salts which have a pH of about 7 in aqueous solution may be used. The coagulating acid may be hydrochloric acid, sulphuric acid, acetic acid or trichloracetic acid.  In addition a buffer such as sodium carbonate may be added.  In examples: (1) a latex of butadiene-styrene prepared in the presence of sodium myristate, was run with stirring into a bath of sodium chloride solution and a stream of dilute sulphuric acid run into the opposite side of the vessel; (ii) a butadiene-acrylonitrile latex prepared in the presence of sodium myristate was run into a sodium chloride solution containing sodium carbonate to act as buffer, and then dilute sulphuric acid added slowly, keeping the pH at 6.5 to 7.5 until coagulation was complete.ALSO:Synthetic rubber latices prepared by emulsion polymerization in the presence of a water-soluble fatty acid soap are coagulated by salting out a layer of the soap upon the particles of the rubber in the latex and then acidifying the soap-containing particles to liberate fatty acid to cause the particles to grow to crumbs of the desired size.  The synthetic rubber may be a polymer of butadiene-1,3, isoprene, piperylene-2,3, dimethyl butadiene-1,3, or chloroprene; or a copolymer of one of these monomers with acrylonitrile, methacrylonitrile, methyl methacrylate, styrene, methyl isopropenyl ketone or vinylidene chloride.  The preferred salts are sodium chloride and sodium sulphate, although other inorganic alkali metal salts which have a pH of about 7 in aqueous solution may be used.  The coagulating acid may be hydrochloric acid, sulphuric acid, acetic acid or trichloracetic acid.  In addition a buffer such as sodium carbonate may be added. In examples: (1) a latex of butadiene-styrene prepared in the presence of sodium myristate was run without stirring into a bath of sodium chloride solution and a stream of dilute sulphuric acid run into the opposite side of the vessel; (ii) a butadiene acrylonitrile latex prepared in the presence of sodium myristate was run into a sodium chloride solution containing sodium carbonate to act as buffer, and then dilute sulphuric acid added slowly keeping the pH at 6.5 to 7.5 until coagulation was complete.
Patent GB-152187-A (GB)
Title: Improvements in air engines
IPC: F01B17/00
Filed: 1919-09-22
Abstract: 152,187. Orr, R. Sept. 22, 1919. Compressed air and gas engines.- Power cylinders 2, 3, mounted upon a bed-plate 1, contain pistons 8, 9 which are reciprocated by high-pressure air from a tank 7 and are connected to a crank-shaft 29 having two fly-wheels 4, 5 through a piston-rod 20, cross-bar 25, cross-head 24, and connecting-rod 27. The valves 11, 12 of the cylinders 2, 3 are operated by eccentrics 14, 18 on a shaft 15, which is oscillated by piston tail-rods 19 through a bar 21, rod 22, and crank 23. The tank 7 is supplied by compressors 43 actuated by angularly-disposed cranks on a shaft 32 gearing with the main shaft. The cylinders 2, 3 are also connected by pipes 45 to a low-pressure tank 44 charged through a pipe 52 from a suitable source of supply. During opexation, air is first supplied from the tank 7 to the cylinders 2, 3. After a time the cylinder 3 is cut off by a valve 46, and opened to a low-pressure supply from the tank 44. The cylinder 2 exhausts by ports A, B, Fig. 4, to reservoirs 44, 49. At the commencement of each stroke, air exhausts through ports A and pipe 47 to the tank 49, and during the latter part of the stroke, through port B to the tank 44. Additional air needed in cylinder 3 is supplied from the tank 49. The pressure in the tanks 44, 49 is regulated by check-valves 60, 62 respectively. Suction valves 63 are provided in the cylinders to permit the inflow of atmospheric air to mix with the compressed air. The compressor pistons and cylinders are rectangular in cross-section with wedge-shaped ends.
Patent GB-636766-A (GB)
Title: Improvements in and relating to typewriters
IPC: B41J29/12
Filed: 1947-08-22
Abstract: 636,766. Typewriters. PAILLARD SOC. ANON. Aug. 22, 1947, No. 23298. Convention date, Sept. 19, 1946. [Class 100 (iv)] A cover for a typewriter has a horizontal part 8 protecting the typebars and provided with a central opening .for their passage, which part is connected to an inclined wall 10 extending beneath the platen and leading to a trough 11 for collecting dust &c. A central boss 13 in the wall 10 accommodates the type-bars during their movements, and the floor of the trough is inclined downwardly from the boss towards the sides of the machine to facilitate removal of the dust. The space between the two carriagerails 3 is closed by a partition member 14 having an opening in its horizontal part for the passage of the usual draw ribbon of the carriage, and separating the carriage from other mechanisms of the machine.
Patent GB-759683-A (GB)
Title: Improvements in and relating to multi-channel communication systems
Inventor: LEVY MAURICE MOISE
IPC: H04Q11/04
Filed: 1949-10-26
Abstract: 759,683. Automatic exchange systems. GENERAL ELECTRIC CO., Ltd. Sept. 22, 1950 [Oct. 26, 1949], No. 23342/50. Divided out of 759,681. Class 40 (4). An arrangement for identifying a free channel and establishing a connection therewith comprises a " lock " circuit which is fed in succession with signals indicative of free channels and which responds to the first only of these signals to set a device which controls the connection to the channel identified by said first signal. The subject-matter of part of the Specification is identical with that of Specification 759,681. The Specification also describes the application of the invention to an automatic exchange system such as described in Specification 759,682. On the initiation of a call the subscriber's line equipment 413 causes a preselector 414 to hunt for a free calling unit 415, which is supplied by the pulse generator 416 with a pulse series whose time position in a cycle of such positions is individual to the calling unit. The " coder " 419 hunts for the calling unit over switch wiper 420 and the ganged wiper 421 thereupon connects up the pulse series to the coder. The called party's number is received by the coder and causes the " router " 422 to mark the line equipment 425 of the wanted subscriber, the mark consisting of pulses in the time position associated with the calling unit 415. The line equipment on receiving a mark causes its associated preselector 426 to find an idle called unit 427 which seizes a " decoder " or channel pulse identifier 429 of the type described in Specification 759,681, which upon receiving a pulse from the called unit in the time position associated with the calling unit proceeds to supply the called unit with pulses at this time position. Connection is thereby established over one of the pulse channels of the " go " and " return " multiplex systems 432, 433. A further multiplex system 434 is provided over which a signal may be sent to the calling unit 415 to release the coder when the called unit receives its first pulse from the coder. Alternatively the calling unit may be arranged to release the coder when it receives its first pulse over the " return " multiplex. If the called line is busy the subscriber's line equipment 425 may be arranged to re-route the marking over the common lead 435 to the coder which it causes to revert busy tone. The " coder " and " router " are described in Specifications 759,684 and 759,685 respectively.
Patent GB-155643-A (GB)
Title: A novel or improved locking device for use in connection with machinery, particularly applicable for use upon automobiles and the like for preventing theft or unauthorised use
IPC: B60R25/00
Filed: 1919-09-23
Abstract: 155,643. Read, H. Sept. 23, 1919. Levers and rods, locking.-In locking-devices of the kind comprising a hand-operated spring bolt which engages a recess in a rotatable member to prevent its rotation, the bolt 1 is operated through a cable 11 from a sliding plunger 12 the operating knob 13 of which rides in an L-shaped slot. The plunger is fitted with a flat stem 12 normally engaging a recess in a member 18 rotatable by means of a key. By rotating the member 18 through a right angle to the position shown, the plunger 12 may be held in its lower position and the withdrawal of the spring bolt prevented. The device may be used to prevent operation of the gear lever of a motor-vehicle or to other machinery.
Patent GB-518921-A (GB)
Title: Improvements in tuyeres
IPC: C21B7/16
Filed: 1938-08-09
Abstract: 518,921. Tuyeres. FREYN ENGINEERING CO. Aug. 9, 1938, No. 23475. Convention date, Aug. 28, 1937. [Class 51 (i)] [Also in Group XXII] A tuyere for use particularly in blast furnaces comprises a water cooled body portion formed of a metal such as copper or al uminium of relatively high heat conductivity to which is attached a protective nose formed of a metal such as iron or steel of higher melting point and lower heat conductivity than the body. As shown in Fig. 1, the body 10 is provided with a tapering massive nose 13 enveloped by a protective member 12 which is secured by forcing the annular shoulder 16 of the body outwardly against a flaring wall 16a on the protective member 12. In the modification shown in Fig. 2 the protective member 12a is secured merely by making it a tight fit on the body. Fig. 3 shows a further modification in which the body is cast upon the protective member 23 which may be heated electrically while in the mould. The protective member may be applied to the body by spraying metal thereon.
Patent GB-332419-A (GB)
Title: Improvements in or relating to draught excluders for doors and the like
IPC: E06B7/20
Filed: 1929-07-31
Abstract: 332,419. Lee, A. E., and Ellis, D. A. July 31, 1929. Draught-excluders. -A sliding-bar draughtexcluder strip for doors or casement windows is carried on two blade springs 4, 5 secured to the top edge thereof one 5 being screwed to the door at the opening edge and the second 4 being passed through a staple or like guide 8 on the door at the hinged side and adapted to engage the hinge post &c. so as to depress the strip on to the floor &c. when the door &c. is closed. The end 4<a> of the spring 4 is rounded and may be furnished with a rubber &c. buffer. The strip 3 is preferably tipped with a strip 3a of rubber or like resilient material.
Patent GB-641460-A (GB)
Title: Improvements in machines for delivering meal or other like materials in measured quantities
Inventor: BRIAN JOHN CHARLES
IPC: G01F11/24
Filed: 1948-09-08
Abstract: 641,460. Hoppers. SIMON (HOLDINGS), Ltd., H. (formerly SIMON, Ltd.). H. Sept. 8, 1948, No. 23602. [Class 78 (i)] A machine, for delivering meal and other non-free flowing materials in measured quantities by volume, of the type comprising a drum b revolving on a horizontal axis with compartments or pockets open at the periphery of the drum into which the material is fed from above and from which it is delivered below, has a disc c with a smooth peripheral surface secured upon the drum shaft a and an arm d freely mounted on such shaft and having a pawl-carrying arm f pivoted thereto at g, the pivotal axis being substantially in line with the point where the pawl h engages the periphery of the disc c in order to turn it, the pawl h consisting of a plate slidable in said arm f and adjusted in the latter to its operative position by a screw i, a bell-crank lever m, n which turns freely about the drum shaft a being rocked about the shaft so that a part thereof in one direction of its movement tends to turn the pawl-carrying arm f about its pivot and cause the pawl h to grip the disc c, which it then turns to the extent to which the bellcrank lever m, n is turned, thus giving the drum b an intermittent rotation. The bell-crank lever m, n is oscillated by an eccentric s operating through levers p, o, the amplitude of said oscillation being varied by an adjusting screw v acting on the lever p.
Patent GB-154751-A (GB)
Title: Improvements in door-locks
IPC: E05B59/00
Filed: 1919-09-25
Abstract: 154,751. Kosok, F. Sept. 25, 1919. No Patent granted (Scaling fee not paid). Night latches and like spring locks.-The shank b of the latch-bolt a has a bevelled surface 1 overwhich the arm m of the follower l slides before engaging the abutment c by mean, of which it withdraws the bolt when the handle f is pressed. This keeps the shank b in the position shown in Fig. 2, out of engagement with the lever 2, and the lockbolt d remains withdrawn. When the door is slammed, a spring 4 presses the shank-abutment C into engagement with the lever 2 as shown in Fig. 3, lifting the tumbler e which releases the lock-bolt d.
Patent GB-888380-A (GB)
Title: Improvements in or relating to the processing of television signals
Inventor: LORD ARTHUR VALENTINE
IPC: H04N5/213
Filed: 1959-07-09
Abstract: 888,380. Television. BRITISH BROADCASTING CORPORATION. July 6, 1960 [July 9, 1959], No. 23669/59. Class 40(3). Phase variations of the line synchronising pulses in television signals derived from a magnetic recording (e.g. due to slight mechanical imperfections) are removed by supplying the derived signals to a delay line A and the various tappings A1 - - - An on which feed gating circuits B1 - - - Bn which are "opened" to pass the input signals to an output conductor C when coincidence occurs between the line synchronising pulses in the input -signals and the pulses of a reference synchronising source also supplied (if necessary in a delay device D) to the gating circuits. The reference synchronising pulses may be derived from the source controlling the operation of the recording/playback mechanism or by employing a "flywheel" arrangement, from the line synchronising pulses in the television signal input to the delay line. The gating circuits B 1  - - - B n , details of which are given with reference to Fig. 2 (not shown), operate to pass the input video signals to the output conductor C for the duration of one line following the coincidence of the two input line synchronising signals to any one of the gating circuits. The input video signals are thus subjected to different, discrete delays and the total delay of line A is made sufficient to embrace the maximum errors. The change in delay between adjacent taps on line A must be sufficiently small to reduce the phase variations of the line synchronising signals to a small value. Specification 806, 646 is referred to.
Patent GB-1273631-A (GB)
Title: Electrode and holder for carrying out electric-arc processes
Inventor: MIKHAIL EDUARD MIGRANOVICH ESI
IPC: H05B7/08
Filed: 1969-05-09
Abstract: 1,273,631. Arc electrode mounting. INSTITUT ELEKTROSVARKI IMENI EO PATONA AN UKSSR. 9 May, 1969, No. 23705/69. Heading H5H. A non-consumable arc electrode 1 is mounted in a thin walled casing 4 which extends into a hollow body 2 to which it is secured, so that coolant supplied to body 2 will surround the casing 4 and thus cool it and the electrode 1. This arrangement ensures that the exposed end of the electrode is adequately cooled. Coolant liquid or gas is fed into the hollow body 2 by a pipe 3, which may be of plastics, and removed through a lateral pipe. The lower end of the pipe 3 extends nearly to the bottom of body 2 to ensure circulation over the entire surface of casing 4. Casing 4 is made of copper, body 2, through which current is supplied to the electrode, is made of brass, bronze or aluminium and electrode 1 is made of tungsten, zirconium or molybdenum. The above device may be used in arc burners or plasma torches for welding, cutting or powder coating.
Patent GB-276166-A (GB)
Title: Improvements in or relating to propelling pencils
IPC: B43K21/08
Filed: 1926-09-25
Abstract: 276,166. Jones, A. W., and Hall, D. G. (trading as Universal Pencil Co.). Sept. 25, 1926. Pencil holders - Relates to a pencil holder of the type consisting of a part a from which project a fixed lead carrier d and an internally screw-threaded tube f form ing an extension of the part a, and a point-section g fitting over the lead carrier and screwing into the tube f to expose or cover the lead. The tube f is separate from the part a and is removably attached thereto as by screwing, and the point section g engages by means of a raised screw-thread with the tube f, the screw in which terminates a short distance from the front end so as to prevent the separation of the parts. The part o is hollow and serves as a recep tacle for refills, a closing cap b being provided.
Patent GB-1463104-A (GB)
Title: Process for the recovery of zinc
IPC: C01G9/00
Filed: 1974-05-29
Abstract: 1463104 Recovery of zinc G THORSEN 29 May 1974 23793/74 Heading C1A Zinc ash waste containing ZnO and halogens is leached with an organic liquid containing a carboxylic acid or an alkyl phosphoric acid whereby a zinc organic complex is formed in the organic phase, the halogens present in the latter, e.g. as halides or halogen acids, are removed by washing with water, which may contain alkali, and the organic phase is then contacted with a mineral acid, e.g. 2MH 2 SO 4 , thereby extracting the zinc as a precipitate or solution of a zinc salt, e.g. ZnSO 4 , the organic extractant may be di-(2-ethylhexyl)-phosphoric acid or a C 9-11  carboxylic acid. The leaching temperature is suitably 50‹ C., with the ratio of H 2 O : organic phase in the washing step 1 : 1.
Patent GB-273938-A (GB)
Title: A tool for use in removing brake drums from the axles of motor vehicles
IPC: F16D65/10
Filed: 1926-09-27
Abstract: 273,938. Kimber, C.., and Bullock, A. Sept. 27, 1926. Removing wheels and other articles from shafts; rigidjaw wrenches; retaining in engagemnt. - A device for removing brake drums from the axles of motor vehicles comprises a disc a having a boss b with an hexagonal recess to engage the nut c which retains the drum e on the axle housing d and provided with slots h for securing it to the drum by means of bolts i. A boss f on the outside, of the disc a is adapted to receive the centre g of the road wheel which is secured in position by the nuts i to enable the wheel to be employed for rotating the device. For the withdrawal of the drum, the wheel, hub and axle shaft are first removed, the boss b is then applied to the nut c and the disc a and wheel are bolted to the drum e; rotation of the wheel unscrews the nut c and withdraws the drum and bearing k at the same time.
Patent GB-150268-A (GB)
Title: Improvements in the manufacture of rubber teats
IPC: A61J11/02
Filed: 1920-08-16
Abstract: 150,268. Grimmelmann, H. Aug 27, 1919, [Convention date]. Feeding-bottles, teats for.- Relates to the form of teat shown which is provided with an inwardly projecting part a in which a valve slit b is cut. According to the present invention, the teat is formed in one piece by dipping in the usual way with the part a extended outwards. It is then partially vulcanized and removed from the mould. The teat is turned inside out or the projecting part is pushed inwards and the vulcanization is completed. The process is stated to prevent the valve slit opening owing to the release of the tension due to cutting.
Patent GB-941239-A (GB)
Title: Improvements in valves
IPC: F16K15/20
Filed: 1960-07-08
Abstract: 941,239. Balls. AGGEBRINK A.G. July 8, 1960, No. 23884/60. Heading A6D. [Also in Division B8] A closure comprises a body 3 having a partially severed base 5 which acts as a valve, and a plug 8 attached to a flange 2 on the body by a distance piece 7 which extends beyond the plug in a tongue 9. The closure is made integrally and may be of plastics material or rubber. The tongue 9 may be used, Fig. 3 (not shown), for opening the base 5 to limit air from the inflatable article 1 to which the closure is welded or glued.