baber/WOPTO huggingface dataset:
Patent GB-299431-A (GB)
IPC: H01J1/14
Filed: 1928-10-25
Abstract: 299,431. Germershausen, W. Oct. 26, 1927, [Convention date]. Vacuum tubes.-In an incandescent cathode provided with a core of refractory metal wound around with an active, or activated wire and formed into a helix, the core is protected by a coating of the same metaf as that of which the wire is made or of another suitable metal, the coating being applied electrolytically. The winding may be actuated before or after application. In an example, a tungsten wire core is wound around with nickel wire, plated with nickel and then activated by the formation, in known manner, of a barium nickel alloy. The Specification as open to inspection under Sect. 91 (3) (a) states also that iridium wire may be used as the core. This subject-matter does not appear in the Specification as accepted.
Patent GB-351860-A (GB)
Title: Improvements relating to vacuum brake apparatus for railway and like vehicles
IPC: B60T13/46
Filed: 1930-10-16
Abstract: 351,860. Fluid-pressure brakes. GRESHAM, S. T., Heatley-Gresham Engineering Co., Ltd., Letchworth, Hertfordshire. Oct. 16, 1930, No. 30980. [Class 103 (i).] The cylinder proper a of a vacuum brake cylinder is a steel pressing to the upper inturned end of which, and to the vacuum chamber f, struts d are welded. The vacuum chamber is in two parts welded together at n and the lower part is welded to the cylinder a. Metal blocks k for the studs m by which the cover-plate j is secured to the cylinder a are welded to the cylinder and to the vacuum chamber f. This method of attaching the cover-plate renders the provision of a foundation or strengthening ring at the base of the cylinder unnecessary. The positioning ring g for the rolling packing ring h is welded to the cover-plate j. The vacuum connection to the lower side of the piston b is formed by an elbow g welded to the cylinder a and to the vacuum chamber. The piston is a pressing with the usual non-return valve s welded thereto. The trunnion straps p are welded to the vacuum chamber to which also a stiffening plate o is welded.
Patent GB-936848-A (GB)
Title: Improvements relating to the production of ice cream or the like
Inventor: CLARKE FRANK JOSEPH
IPC: A23G9/20
Filed: 1961-08-28
Abstract: 936,848. Mixing in proportions. CLARKEBUILT Ltd. Oct. 23, 1961 [Aug. 28, 1961], No. 31002/61. Class 86. [Also in Groups XIII and XXVIII] In a process for producing ice cream or like products, inert gas and a mix of water and solid ingredients at a pressure of 14-17 atmospheres are violently agitated in a first heat exchanger which cools the mixed material to 22-24‹ F. and are thereafter gently worked in a second heat exchanger which further cools the material to 16-20‹ F., the material being discharged at substantially atmospheric pressure. The first heat exchanger 3, Fig. 1, may comprise a cylindrical tube 50, Fig. 2, surrounded by a jacket 51 for the circulation of refrigerant and containing a cylindrical high-speed rotary shaft 52 carrying scraper blades 54, and the second heat exchanger 5 may be similar except that the rotary shaft is square and is rotated at a substantially lower rate. The blades are arranged on the shafts in spaced rows, the blades of one row being opposite spaces in the adjacent rows. As shown, the material is discharged from the second heat exchanger 5 via a manually adjustable flow restrictor 7, and the material is supplied to the first heat exchanger 3 from a proportioning pump 1. This pump comprises an inlet 20, Fig. 7, for air and an inlet 21 for the ice cream mix which may be gravity fed from a tank (not shown). When piston 12 moves to the right, first the air and then the mix pass through duct 22 and non-return valve 25 to the interior of cylinder 10, and on the return stroke of the piston the ice cream is discharged through non-return valve 13 into outlet conduit 15. Three pumps may be provided discharging to a common outlet and operating with a phase difference of 120 degrees. An adjustable valve (Fig. 8, not shown) may be provided for varying the proportion of air added to the mixture.
Patent GB-1071721-A (GB)
Title: Improvements in and relating to reading devices for optical projection systems of weighing balances
IPC: G01G23/32
Filed: 1964-08-04
Abstract: 1,071,721. Weighing apparatus. H. CLESS, [trading as AUGUST SAUTER KOMM GES]. Aug. 4, 1964 [July 24, 1963], No. 31007/64. Heading G1W. [Also in Division G2] In a beam balance arrangement, a scale 1 which is attached to the beam is projected in such a way by a lamp 2 and lenses 3 and 4 of a projection system that the image of a graduation 10 of the scale together with its corresponding index number 11, 13 appears after being reflected by a tiltable mirror 8 on a ground-glass plate 9 alongside a projected index numeral of a further scale 18 which is connected to and arranged to be rotatably adjustable in accordance with the tilt of the mirror 8, the image of the graduation being subsequently positioned between two fixed marks 29 on the plate 9 by suitably adjusting the tilt of the mirror 8 so that an accurate reading of the weight on the beam is then obtainable from the combination of projected readings from scale 1 and scale 18. The scale 1 comprises two sets of graduations 1a, 1b which read from 0-50 gms and from 50-100 gms respectively in steps of 0À2 gms. The scale 18 which covers the range of 1-0À2 gms in steps of 0À01 gms is arranged to shutter off parts of the index numerals projected on to the plate from scale 1 so that a direct reading of the correct weight on the beam is obtainable. In addition a further scale 32 which is rotated to indicate the number of 100 gm weights on the balance is at least partly projected on to the plate 9 and is arranged to actuate the tilting of a mirror 6 which directs readings to the plate 9 either from graduation set 1a or 1b according as to the required scale range. In order to shutter of parts of the scales suitably so that an unambiguously readable weight value is projected on to the ground glass plate 9, the scales are provided with portions of different opacity Figs. 3-6 (not shown).
Patent GB-1097808-A (GB)
Title: Method for producing vinyl chloride copolymers
IPC: C08F214/06
Filed: 1966-07-11
Abstract: Vinyl chloride is copolymerized with an alkyl crotonate having twelve or more carbon atoms in the alkyl group.  The ester is used in amounts of 1-40 parts per 100 parts by weight of vinyl chloride. Suspension or emulsion techniques can be used.
Patent GB-745705-A (GB)
Title: Process for the continuous precipitation of cellulose esters and apparatus therefor
IPC: C08B3/28
Filed: 1953-11-10
Abstract: <PICT:0745705/IV(a)/1> A process for continuously precipitating a cellulose ester from solution comprise continuously introducing the solution simultaneously with a precipitant into a first vessel 1 equipped with a stirrer 2, continuously withdrawing the mixture of solvent, precipitant and precipitate from this vessel and introducing it into a lower level of a second vessel 11 provided with a convening device 4, withdrawing the mixture from a higher level of the second vessel and passing it into a lower level of a third vessel 5, e.g. through a conduit 10, the third vessel being equipped with a stirrer 6, and withdrawing the mixture from a higher level of the third vessel, e.g. through a pipe 9.  The solution and precipitant may be admitted to the first vessel through pipes 7 and 8 respectively.  The precipitant may contain acid recovered from the outflow pipe 9.  The solution may be of cellulose acetate, butyrate, propionate, aceto-butyrate or aceto-propionate, the solvent may be acetic acid or methylene chloride and the precipitant may be water, benzene or kerosene.ALSO:<PICT:0745705/III/1> A process for continuously precipitating a cellulose ester from solution comprises continuously introducing the solution simultaneously with a precipitant into a first vessel 1 equipped with a stirrer 2, continuously withdrawing the mixture of solvent, precipitant and precipitate from this vessel and introducing it into a lower level of a second vessel 11 provided with a conveying device 4, withdrawing the mixture from a higher level of the second vessel and passing it into a lower level of a third vessel 5, e.g. through a conduit 10, the third vessel being equipped with a stirrer 6, and withdrawing the mixture from a higher level of the third vessel, e.g. through a pipe 9.  The solution and precipitant may be admitted to the first vessel through pipes 7 and 8 respectively.  The precipitant may contain acid recovered from the outflow pipe 9.  The solution may be of cellulose acetate, butyrate, propionate, aceto-butyrate or aceto-propionate, the solvent may be acetic acid or methylene chloride and the precipitant may be water, benzene or kerosene.
Patent GB-1259996-A (GB)
Title: Mitred joints between frame members
IPC: E06B3/98
Filed: 1969-06-19
Abstract: 1,259,996. Window, &c. frame joints. ALUMINIUM-WALZWERKE SINGEN G.m.b.H. 19 June, 1969 [20 June, 1968], No. 31133/69. Heading E1J. Two mitred frame members 2, 3 of closed box (Fig. 1), or channel cross-sections (Fig. 7), are jointed by means of an angle piece 5 having an arm 6, 7 engaging in the outer webs 3 of respective box members 2, or the inner web 24, Fig. 7, to connect the members and an abutment piece 12 has a surface bearing on an arm 6, 7 of the angle piece 5 or directly on the web 4, 24 of the member, and the pieces 5 and 12 have bores therein in alignment to accommodate screws 13 which pass through the piece 12 and screw into the angle piece 5 to urge together the pieces 5 and 12 so that the members are drawn together. A single screw may be used and the angle piece may be fixed to the webs 4, 24 of a member.
Patent GB-914965-A (GB)
Title: Machine for sawing crystals and other hard materials
IPC: B28D5/02
Filed: 1959-09-14
Abstract: 914,965. Severing by grinding. FITCHBURG ENGINEERING CORPORATION. Sept. 14, 1959 [April 24, 1959], No. 31292/59. Class 60. A machine for accurately severing thin slices from hard material, e.g. crystals, comprises a base 10, Fig. 1, means 24, 26 for holding a workpiece 22 in operative position, a swinging rotary cutter 30 mounted on the base for severing a slice at each downward swing, intermittently operated means for advancing the work-holder in steps relative to the plane of the cutter and means for backing the work-holder from the cutter after each cut and prior to each step of advance. The motor-driven cutter is mounted on a pivoted member 40 which is rocked by an hydraulic cylinder and ram 16, 46 to provide an oscillatory motion in timed relation to the movement of a saddle on which the work-holder 24, 26 is mounted. The cutter and work-holder are housed in a casing 52 having transparent slidable panels. Appropriate hydraulic controls associated with a pump 20 provide for the co-related movements of the member 40 and feed mechanism 60 for the work-holder which is indexed by a feed shaft 66, Fig. 4, rotated step-by-step for each feed movement by a rack-and-pinion 102, 104 and a gear-wheel 114 driving the shaft 66 through a one-way clutch. The rack 102 is moved intermittently by an hydraulic cylinder 100, Fig. 1, in the required timed relation to rotate the shaft 66 inside a nut 90 normally held in fixed relation to the frame of the machine by a swinging yoke 94, Fig. 5. As the shaft 66 is rotated in the nut 90, it moves the feed unit 60 and saddle to advance the workholder by the required thickness of the slice to be cut on the down stroke of the cutter. The thickness of cut may be adjusted by a handle 118, Fig. 1, which determines the travel of the rack 102. When the slice has been severed, the work-holder is retracted from the plane of the cutter by the operation of an hydraulic actuator 98, Fig. 5, which moves the nut 90 with the feed shaft 66 to the right to hold the work clear of the cutter during its upstroke; the nut is advanced to its " fixed " position prior to the next cut by the reverse action of the actuator 98. Manual operation of the feed shaft 66 may be effected by a handle after the pinion 104 has been moved out of engagement with the rack 102 by a control knob 112, Fig. 4. In a modification, the retracting actuator is directly coupled to the saddle, a nut on the shaft being held non- rotatably but slidably in a fixed housing. A tank 28, Fig. 1, holds a coolant which is directed in known manner to the work and cutter. The work itself is cemented to a plate 24 on the holder 26.
Patent GB-513617-A (GB)
Title: Improvements in hand-operated indicating devices
IPC: A61J7/04
Filed: 1938-10-29
Abstract: 513,617. Hand-operated indicators. EHRLICH, J. C. Oct. 29, 1938, Nos. 31337 and 31338. Convention dates, Oct. 30, 1937, and May 26, 1938. [Class 118 (i)] An indicating device comprises a body 21 with an annular undercut groove A therein having indicating characters spaced around and a movable indicating member located and retained in the groove such as an inelastic metallic ball 51 or a wire ring 15 carrying a pointer 16 adapted to register with one or other of the spaced characters. Where a metallic ball is used,. various forms of corrugations may be made in the groove corresponding with the spaced characters. The body portion may be of synthetic resin and may form the stopper of a bottle or like container.
Patent GB-184733-A (GB)
Title: Improvements in garments
IPC: A41B9/08
Filed: 1921-11-23
Abstract: 184,733. Hatch, N. Nov. 23, 1921. Combinations; jerseys.-The shoulder flaps of combinations, jerseys, and like garments are arranged to overlap at the front and at the back and are joined at their lower edges to the trunk portion. The joining line 45 at the back is appreciably higher than the corresponding line 36 at the front so that the overlapping area b at the back is considerably smaller than the area f at the front.
Patent GB-267233-A (GB)
Title: Improvements in and relating to explosion turbines
Filed: 1925-12-14
Abstract: 267,233. MÚly, J. Dec. 14, 1925. Working-fluid supply.- The combustion chambers 1, 2, 3 for a gas turbine wheel T are provided with admission valves A<1>, A<2>, A<3> for the mixture supplied bv a pump pm, discharge valves B<1>, B<2>, B<3> for the burnt gases, and inlet and outlet valves C<1>, D<1>, C<2>, D<2>, C<3>, D<3>, for scavenging air supplied by a pumu pa, and all the valve-actuating pistons are inter-connected bv an oil transmission system, as shown, so that the opening of the discharge valve for one combustion chamber causes (1) the opening of the admission valve of a second chamber and (2) the opening of the scavenging valve for a third chamber. The combustion chambers may be enclosed in a water boiler, the steam from which may be led to a turbine.
Patent GB-929040-A (GB)
Title: Improvements in or relating to fastener supplying assemblies
IPC: B25C1/00
Filed: 1959-09-16
Abstract: 929,040. Nailing. BRITISH UNITED SHOE MACHINERY CO. Ltd. Sept. 16, 1959 [Sept. 18, 1958], No. 31523/59. Class 89 (3). [Also in Group XXX] A fastener supplying assembly comprises a downwardly extending raceway 46 in which fasteners are supported by their heads, and means 92 for separating a fastener from the end of the raceway and supplying it to a delivery pipe 79 offset from the end of the raceway. The assembly is similar to that described in Specification 852,736 and may be attached by flexible pipes to a nail-inserting tool, as described in Specification 801,209. The assembly has a frame 4, 6 mounted on wheels 8 and includes a hopper 14 continuously oscillated by an air motor 22 to supply nails to the raceway 46. Compressed air is supplied by a pipe 30 through a filter 32 and an oiler 34. One side-plate 50 of the raceway is adjustable by a plate 52 and wing-nut 60 and carries a finger 68 which engages a spring-pressed plate 64 attached to the hopper 14 so that the feeding path is of the correct width. From the end of the raceway 46 a nail is received in a picker 92 sliding against a fixed block 70. When a slide 114 carrying the picker moves to position the nail adjacent a bore 72 in the block 70, the head of the nail slides down a ledge 102 and the nail drops down into the delivery pipe 79. A picker can be replaced by means of a screw connection 117 to allow handling of different-sized nails. The delivery pipe can be removed by releasing a screw 76 to allow removal of a connecting block 78. In operation, firing of a portable nail gun supplies pressure to a piston 124 to move the picker slide against a spring 118 up to a stop 120. The picker slide 114 also carries with it a valve 162 which allows air to pass down the pipe 79 and deliver a nail to the gun. The spring then returns the picker to deliver a nail to the pipe.
Patent GB-160518-A (GB)
Title: Electric welding
IPC: B23K9/073
Filed: 1919-12-17
Abstract: 160,518. Kenyon, O. A. Dec. 17, 1919. Heating by electricity.-In electric welding by means of a fusible electrode, a constant length of arc is maintained by automatic feeding-apparatus actuated by an electric motor connected directly across the terminals of the arc and controlled by the voltage across the arc. An increase or decrease in the length of the are increases or decreases the speed of the motor. The pencil 22 is held between current-supplying, slidable contacts and friction rollers 17 in an angularly adjustable frame, and is fed forward by a roller 15 driven through pin contacts by a shaft 14 actuated through toothed gearing 12, 13, by the motor 10. The work 24 is moved longitudinally. A collar 19 on the shaft 14 is connected bv a spring 25 to the roller 15, and determines the length of the arc. On starting, the pencil is pushed towards the work and rotates the roller 15 in the direction indicated by the arrow, Fig. 3. When contact is made the spring 25 pulls the roller back and starts the arc. The length of the arc is determined by angularly adjusting the eccentric driving-pins 20.
Patent GB-1353654-A (GB)
Title: Urea synthesis
IPC: C07C273/04
Filed: 1971-06-24
Abstract: 1353654 Urea synthesis I MAVROVIC 24 June 1971 [29 June 1970] 31654/73 Divided out of 1353653 Heading C2C A urea synthesis process wherein NH 3 , CO 2  and ammonium carbamate are contacted in a total amount of from 3-6 molar proportions of total equivalent NH 3  to total equivalent CO 2 , to form urea in a reactor at elevated temperature and pressure, comprises reacting a fraction of the total CO 2  fresh feed stream, said total CO 2  feed stream being substantially equivalent to the stoichiometric net amount of urea formed in said reactor and said fraction being from 10- 100% of said total CO 2  feed stream, with NH 3  in the presence of urea and water at a pressure of 10-670 p.s.i.a. to form an aqueous ammonium carbamate solution containing urea, the amount of said urea in said solution being from 0À1 to 10 parts by weight of urea per part by weight of total CO 2  as ammonium carbamate and free CO 2 , charging said solution to said reactor operating at a pressure above 670 p.s.i.a. to form urea and charging to said reactor the balance of the fresh CO 2  feed stream.
Patent GB-896654-A (GB)
Title: Improvements in electrodes for storage batteries
IPC: H01M4/76
Filed: 1960-09-14
Abstract: 896,654. Accumulators. TUDOR A.B. Sept. 14, 1960 [Aug. 19, 1960], No. 31696/60. Class 53. An electrode for a storage battery (particularly tubular electrodes) having a non-conducting envelope 5 retaining the active material has the top bar 2 wound with an insulating material 6 which is glued or welded to the envelopes. Preferably the insulating material 6 also covers the battery post 3 and has holes 7 formed therein for support purposes.
Patent GB-1531296-A (GB)
Title: Signalling equipment for a telephone station
IPC: H04M3/00
Filed: 1976-07-29
Abstract: 1531296 Tone code receivers TELEFONAKTIEBOLAGET LM ERICSSON 29 July 1976 [1 Aug 1975 (2)] 31740/76 Heading H4K A tone code receiver which returns an acknowledgement signal after each tone code received includes three delay means activated by each acknowledgement signal and arranged respectively to inhibit a further acknowledgement during a first time period (equal to the transit time delay over the return signalling path), to prepare for setting a storage element if a break in reception of the tone code is detected after a second time period, and to reset the storage element after a third time period, the storage element being arranged when set also to inhibit a further acknowledgement.As shown tone codes are detected at 1 and each detection enables via gates 18 and 23 a pulse generator 16 feeding a tone code acknowledgement unit 17. Due to the length of the transmission path the received tone code may continue for over 500 ms this being the transit time delay over the return path plus the switching delay. A monostable 12 triggered by the end of the pulse from generator 16 inhibits via gate 23 the pulse generator and a receiving register 6. If a termination in the received tone code is received within the permitted limits related to the expected transit time and switching delays and defined by monostables 13 and 14 a bistable 15 is set when the termination is detected and reset when monostable 14 times out or is itself reset via gates 12 and 22 when a further end of the received code is detected. The end of each tone code detected sets a bistable 19 which steps a counter 21 which addresses successively the locations in receiver store 6 to be used for successive digits. Monostables 12 and 14 are of the retriggering type and include a bipolar transistor the base of which is connected to the trigger input and the emitter collector path arranged to short circuit a capacitor the charge time of which determines the delay.
Patent GB-1534084-A (GB)
Title: Method and apparatus for triple roll seaming end closures to bodies of containers such as metal casks or drums
IPC: B21D51/32
Filed: 1976-07-30
Abstract: 1534084 Seaming GALLAY SA 30 July 1976 [31 July 1975] 31940/76 Heading B3J [Also in Division B5] The flange 3, Fig. 3, of an end closure 4 is seamed to the flange 1 of a container body 2 by forming a frusto-conical margin 5 on the flange 3 ending in an edge curl 6 of small radius, and rolling the flanges together by means of a single seaming roll 15, Figs. 4 and 9, to form a seam having seven contiguous layers. The frustoconical margin 5 may be formed by stamping and the curl 6 by rolling or, Fig. 1d, both may be formed by a single roll 7. Seaming is now completed using the roll 15, Figs. 4 and 9. The body 2 may be of plastics or steel and the closure 4 of steel. A polymerizable sealant may be applied to the curl 6. Specification 1,153,872 is referred to.