baber/WOPTO huggingface dataset:
Patent GB-334538-A (GB)
Title: Exhaust silencer for internal combustion engines
IPC: F01N1/08
Filed: 1929-03-01
Abstract: 334,538. Swensen, T., Wetlesen, H., Gellmuyden, K., and Undall, A. R., (trading as Aero-Motor-Silencer). Jan. 21, 1929, [Convention date]. Exhaust silencers.-In silencers having a central perforated distribution pipe 1, a distribution chamber 3 open at the forward end 5 to another chamber formed by an outer casing 8 open at its rear end to atmosphere, the opening 5 is adapted to be restricted to a variable degree by an annular protuberance 6 mounted on an adjustable sleeve or ring 10 adapted to slide on the pipe 1. The ring may be secured in position by bolts 11 passing through holes 12. The protuberance may also be of semi-circular form and formed in the wall of the pipe as shown in the upper half of the drawing ta act as a baffle and to take up expansion. The gases flow from space 7 in a thin film to the outlet 9 and are cooled by the outer air. A collecting chamber 13 may be arranged in front of the outlet to baffle the gases.
Patent GB-307034-A (GB)
Title: A pressing tool for the spinning of metal and alloys
IPC: B21D22/16
Filed: 1929-03-01
Abstract: 307,034. Christiansen, P. C. March 1, 1928, [Convention date]. Spinning.-A tool for spinning sheet metal, &c. has a ball or balls inserted in its operative end. The ball 2 may be inserted in a semispherical cup in its holder or in a cup with a constricted opening 16 Fig. 2, facing the work 3 so that it cannot, fall out. The ball is introduced by screwing off part 17 of the holder 1, or by removing a back plate 11, which may be adjustable, or by arranging a cut away portion 5, Fig. 3, so that the ball can be inserted obliquely. In another modification the ball is backed by a roller cage. The holders are pivoted in a, carrier rotated relative to a former to which the work is clamped, springs pressing the tools against the work.
Patent GB-1529015-A (GB)
Title: Shaft and hub assembly
IPC: F16B21/18
Filed: 1976-02-20
Abstract: 1529015 Mounting parts on shafts; circlips ZAHNRADFABRIK FRIEDRICHSHAFEN AG 20 Feb 1976 [28 Feb 1975] 06767/76 Headings F2U and F2H In order to prevent a circlip from being lifted out from a shaft groove at high shaft speeds or under shock loadings, a shaft and hub assembly includes a first circlip 1 located in a shaft groove 3 and a second circlip 2 radially aligned with the first cirolip and circumferentially surrounding it, being located in an internal groove 4 in the bore of the hub. In one embodiment, circlip 1 rests against the bottom of  groove 3, and there remains a radial gap between the two circlips, the gap being substantially equal to the radial depth of groove 4, Fig. 2. In another embodiment, Fig. 3, an alternative circlip 7, slightly larger than circlip 1, rests in contact with circlip 2, and during assembly it is necessary to hold circlip 7 compressed against the bottom of groove 3, while circlip 2 is inserted, Fig. 5.
Patent GB-1056085-A (GB)
Title: Improvements in or relating to continuous tunnel kilns for firing ceramic materials
IPC: F27B9/24
Filed: 1965-02-17
Abstract: 1,056,085. Tunnel kilns. S.I.T.I. Feb. 17, 1965 [July 29, 1964], No. 6788/65. Addition to 820,220. Heading F4B. A continuous tunnel kiln for firing ceramics as disclosed in the parent Specification is modified in that the rollers are constructed such that the roller wall thickness is between <SP>1</SP>/ 10 th and 1/ 15 th of the roller outside diameter so that special roller cooling means are not necessary. The rollers 5 are rotatably mounted in grooves 4 in the sole 3 of the kiln with a slight lateral play and project above the level of portions 3<SP>1</SP> enough to drive the charge carrying plates. The rollers are spaced apart a distance 7 between roller centres, shorter than the length of the carrying plates. Electric heating elements may be placed in recesses 2, 2<SP>1</SP>.
Patent GB-974509-A (GB)
Title: Improvements in and relating to electromechanical devices
IPC: H02K7/14
Filed: 1961-02-24
Abstract: 974,509. Washing machines. COMPAGNIE ELECTRO-MECANIQUE. Feb. 24, 1961 [Feb. 25, 1960], No. 6839/61. Heading D1A. [Also in Division H2] A washing machine agitator 12, having wide and narrow blades 18,19, is driven via a shaft 11 by the rotor of an electric motor whose stator is formed by a portion 8 of the machine tank wall 20. Reference has been directed by the Comptroller to Specification 874,394.
Patent GB-622081-A (GB)
Title: An improved spray gun for paint and the like
IPC: B05B7/24
Filed: 1947-03-12
Abstract: 622,081. Spray-producers. PRATT, S. E. March 12, 1947, No. 6845. [Class 69 (iii)] The handle of a spray gun comprises a tube 2 supplied with pressure air at one end and provided with a nozzle 4 at the other. A syphon tube 5 leading into a container 16 has a jet 9 facing and in proximity to the nozzle 4. A pressure tube 11 with an inlet 13 has a spray control outlet 12 adapted to be covered by the thumb of the operator,
Patent GB-433800-A (GB)
Title: Improvements in or relating to turbines for expanding gases for the purpose of producing low temperatures
IPC: F25B9/00
Filed: 1934-03-03
Abstract: 433,800. Turbines. ZERKOWITZ, G., 8, Giselastrasse, Munich, Germany. March 3, 1934, No. 6846. Convention date, March 24, 1933. [Class 110 (iii)] Gases are expanded through a turbine, doing work, and also for the purpose of cooling the gases which are used in a cooling plant. In the arrangement shown, gases may be admitted through a pipe 2, pass through a nozzle 3, and blade ring 4 to an exhaust 6, or the direction of flow may be reversed. Insulation material 1, 15, surrounds the turbine casing. The turbine shaft 10 supports gearing or a driven machine in a casing 11. Bearings 13, 14, are provided, the rotor 5 being at a considerable distance from the bearing 13. The rotor may be cone-shaped, the blade ring extending beyond the end of the shaft. Several stages of blade rings may be arranged on the rotor. The shaft is constructed of chromium nickel steel, and the rotor and blading of aluminium or an aluminium alloy.
Patent GB-1466361-A (GB)
Title: Lockbolt placing apparatus
IPC: F15B7/00
Filed: 1973-02-12
Abstract: 1466361 Riveting AVDEL Ltd 9 May 1974 [12 Feb 1973] 6857/73 Heading B3U A lockbolt placing apparatus comprises an hydraulic master piston 11 reciprocable in a master cylinder 12, an hydraulic slave piston 14 which is connectable to means for gripping the stem of a lockbolt and which is reciprocable in a slave cylinder 15 connectable to an anvil for swaging a collar into one or more grooves in the lockbolt stem, first and second hydraulic connections 25, 27 between the two cylinders 12, 15, an hydraulic reservoir 28 having a pressurized inlet valve 29 and connected to the connection 27 and pressurized relief means 35, 36 connecting the first and second hydraulic connections 25, 27 for relieving an abnormally high pressure. The master piston 11 is raised within its cylinder 12 to place a lockbolt by a double acting piston 19. A deficiency of fluid is produced in the connection 27 due to the different effective areas of the pistons 11, 14, which deficiency is made up from the reservoir 28 through an outlet valve 31. When the piston 11 is moved downwards to pull the anvil off the swaged collar, the pressure in the circuit is increased until it is sufficient to open an inlet valve 29 of the reservoir 28. Any excess fluid in the reservoir 28 is discharged through a pressure relief valve 41. The master piston 11 is provided with relief valves 35, 36, one of which is opened if an abnormally high pressure differential occurs on either side of the piston 11.
Patent GB-512676-A (GB)
Title: Improvements in or relating to front-pieces for lamps
IPC: F21V9/08
Filed: 1938-03-04
Abstract: 512,676. Vehicle lamps. JACOBS, H. P. March 4, 1938, No. 6872. [Class 75 (iv)] An adjustable filter for vehicle lamps for use in fog and which permits the passage of a greater proportion of light from the red end of the spectrum than from the blue end comprises a fixed filter portion covering the whole of the lamp opening and having the upper part of greater density than the lower part and an adjustable portion or portions movable from behind the upper dense part of the fixed portion to cover any desired area of the lower less dense part. As shown in Fig. 1, the rim 10 which is clipped on to the lamp is provided with a retaining ring 16 for three semicircular sheets 13 of material sold under the Registered Trade Mark "Rhodoid" No. 206, and a circular sheet 14 of "Rhodoid" No. V4. Rotatably mounted on cross bars 23, 24 are further filter sheets 18, 19 of " Rhodoid " No. 208. The sheet 19 is semicircular and the,sheet 18 in the form of a strip with a projection at one end.
Patent GB-637154-A (GB)
Title: An improved process for the manufacture of bearings and bearings made thereby
IPC: C25D7/10
Filed: 1945-03-19
Abstract: 637,154. Electrodeposition of metals. VANDERVELL PRODUCTS, Ltd., GREEN, D. F., SALMON, J. E., and MALLET, N. P. March 19, 1945, No. 6895. [Class 41] [Also in Group XXXIV] A bearing consists of a steel backing with an electrodeposited layer of soft bearing metal 0.0005 to 0.01 inch thick applied direct to the backing or with only a very thin bonding layer. The soft bearing metal may be an alloy of indium with tin, zinc, lead or copper or with lead and tin, or an alloy of lead, tin and antimony; the constituents may be codeposited or deposited in succession and afterwards interdiffused. A steel shell is prepared for electrodeposition by degreasing followed by immersion in an aqueous solution of mineral acids, e.g. a mixture of nitric and hydrochloric acids. For depositing a zinc-indium alloy the bath may contain indium cyanide, zinc cyanide and a saccharide such as dextrose and is stabilized with an alkali metal hydroxide. For depositing a tin-indium alloy, a similar bath in which zinc cyanide is replaced by potassium stannate is employed. Proportions are given for depositing a zinc-indium alloy containing 20 per cent indium, an indium-zinc alloy containing 25 per cent zinc, a tin-indium alloy containing 7 per cent indium and an indiumtin alloy containing 20 per cent tin. Specifications 566,538, 573,848, 577,335, 628,459, 637,153 and 637,159 are referred to. Reference has been directed by the Comptroller to Specification 572,105.
Patent GB-711183-A (GB)
Title: Improvements in metal planing machines
IPC: B23D7/00
Filed: 1952-03-19
Abstract: 711,183. Reverse gearing. LIBGOTTE, L. F. March 19, 1952, No. 7040/52. Class 80 (2) [Also in Group XXII] A planing machine comprises a buffer 15, 23 which assists in reversing the table B, which is traversed by belts or chains attached to drums 7 ... 9 which are alternatively clutched to flywheels 3, 4 revolving in opposite directions. The flywheels are rotated by motors 1, 2 through belt gearing. The clutches are actuated through levers 17, 18, 37 enagaged by projections on the stops 15, 16 of the buffer.
Patent GB-938817-A (GB)
Title: Improvements in and relating to electrostatic printing apparatus
IPC: G03G15/34
Filed: 1960-02-29
Abstract: 938,817. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 29, 1960 [Feb. 27, 1959], No. 7043/60. Class 100 (4). [Also in Group XXXVIII] A printing apparatus, e.g. receiving signals from a computer, electrostatically transfers particles from a transfer medium to a printreceiving medium by means of selectively energized electrodes between which the two mediums are fed. A transfer medium band 8 having a high dielectric constant is sprayed by a nozzle 11 with particles suspended in a liquid which are given a predetermined charge by an electrode 12. A record medium 1 is fed over rollers 3 adjacent the band 8 where groups of electrodes 14a, 14b and 15 are positioned. A row of seven electrodes are provided in each group transverse to the band 8'and the electrodes of groups 14a, 14b are sequentially pulsed, as the mediums are fed, to transfer the particles to the medium 1. Characters are formed by the electrodes 15 suppressing selectively the discharge of the groups 14a, 14b to prevent transfer of the particles. The particles are pressed by rollers 4, 5 to fix the characters or a heating unit may be used for thermoplastic particles or the particles can be sprayed by a quick-drying lacquer.
Patent GB-652223-A (GB)
Title: Improvements in or relating to magnesium base alloys
Inventor: BALL CHARLES JAMES PRIOR
IPC: C22C23/00
Filed: 1945-03-22
Abstract: A magnesium-base alloy consists of at least 85 per cent magnesium, at least 0.3 per cent soluble zirconium and barium and/or strontium together not exceeding 1 per cent but at least 0.005, the remainder, if any, being permissible alloying elements. These permissible alloying elements are defined in the Specification as elements which do not form high melting-point compounds with zirconium.  They may be zinc, cadmium, rare earth metals, silver, thallium, thorium, copper, bismuth, beryllium, lead, lithium and/or calcium.  The alloy should preferably be free from flux contamination and chloride inclusions. Specifications 151,137, 652,222 and 652,224 are referred to.
Patent GB-472394-A (GB)
Title: Improvements in and relating to electric control systems for regenerative braking of direct current motors
IPC: H02P7/34
Filed: 1936-03-10
Abstract: 472,394. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., LIDDIARD, H. W. C., and PETCH, jun., T. H. March 10, 1936, No. 7254. [Class 38 (iii)] Varying E.M.F.-The generator in a Ward- Leonard system has a single field winding only, and the exciter, or the exciter exciting the generator exciter, is driven by independent means having, for example a fly-wheel controlling its drop in speed, means being provided for cutting off the supply to the driving means while the motor excitation is maintained or allowed to decay at a controlled rate. To bring the driving motor to rest quickly in case of emergency a switch 11 is opened to deenergize a relay coil 12 which opens contacts 13 and disconnects a motor 7 driving an exciter 4 which supplies through a controller 5, the field 3 of the generator supplying the driving motor. The shaft of the motor 7 carries a fly-wheel 8 which, acting alone or in conjunction with a friction brake, an oil damper or rotating air vanes, determines the rate at which the speed of the exciter falls. The field 1 of the driving motor may be maintained supplied from an exciter 2 until the field 9 of the exciter is disconnected by a switch 14 acting after a predetermined time interval or in accordance with the falling voltages resulting from the slowing down of the exciter 4. Thus the motor is braked at a rate and to an extent determined by the fly-wheel 8. Instead of maintaining the field 1 of the motor fully excited, the field 9 of the exciter 2 may be disconnected, a condenser or auxiliary flywheel machine being associated with this field as described in Specification 470,771. A brake coil 16 connected across the exciter 4 may trip main brakes at a predetermined voltage across the exciter. In a modification, Fig. 2 (not shown), the exciter driven by the motor 7 supplies, through the controller 5, the field of an additional exciter supplying the generator field. Specifications 267,289, [Class 38 (iii)], and 434,668 are referred to. Reference has been directed by the Comptroller to Specification 267,289.
Patent GB-860484-A (GB)
Title: Improvements in gramophone records
Filed: 1958-03-07
Abstract: 860,484. Gramophone records. TELDEC TELEFUNKEN-DECCA SCHALLPLATTEN G.m.b.H. March 7, 1958 [March 7, 1957], No. 7411/58. Class 40 (2). A gramophone record (or a detachable centrepiece for it) has driving-dogs 1 and at least one driving-member 2 movable perpendicular to the disc to an extent limited by the recesses 4 to ensure engagement with dogs on other records stacked on a gramophone turntable, should a record be warped or the dogs be of sub-standard manufacture. In a second embodiment, Fig. 5, a ring 7 passes through a hole 3 with sufficient freedom to fall, when required, to the dotted line position.
Patent GB-249538-A (GB)
Title: Improved manufacture of textile fibres, yarns, fabric or the like, for obtaining effects of colour or lustre or both
IPC: D06M11/52
Filed: 1926-03-17
Abstract: 249,538. Naamlooze Vennootschap Nederlandsche Kunstzijdefabriek. March 17, 1925, [Convention date]. Addition to 245,407. Yarns &c., treating with liquids.-The process of the parent case for producing colour and lustre effects on yarns &c., is modified by arranging that the sulphur contents of the fibres thereof varies at different parts of the material; thereby it is possible to obtain contrasting lustre effects, and on subsequent dyeing, differences in colour in the material. Viscose silk materials are more particularly operated on. The sulphured fibres may be associated with non-sulphured fibres. To prepare the material, the latter may be treated at different parts with unequal quantities of sulphur, or the sulphured fibres, or a part of them, may be desulphurized to different degrees. According to a second modification, particularly applicable to viscose silk, by the use of a mild desulphurizing-agent only the sulphur is removed from some of the fibres, that in the core remaining untouched. As a further modification, only the outer surface of the fibres may be dyed with an agent that combines with or fixes sulphur, the sulphur remaining in the core of the fibres being locally removed either wholly or in part, the desulphured fibres showing a higher lustre than the unsulphured fibres. Thus, viscose silk is superficially desulphurized by treatment for a short time at 9‹ C. with one per cent sodium sulphide solution; the product is then dyed with a solution' containing copper sulphate and sodium sulphite. The Specification as open to inspection under Sect. 91 (3) (a) refers to the application of the process to goods with uniformly sulphured fibres, the sulphur being subsequently removed in selected places either by treating with a paste or liquid that dissolves sulphur, or by printing with a sulphur-fixing agent such as wax and removing the sulphur from the unprinted portions. This subject-matter does not appear in the Specification as accepted.
Patent GB-1481896-A (GB)
Title: Vehicle door assembly
IPC: E05B65/19
Filed: 1975-02-21
Abstract: 1481896 Vehicle latching/locking mechanism FORD MOTOR CO Ltd 21 Feb 1975 [7 Feb 1974] 7458/75 Heading E2A In a vehicle boot lid, in which latching and locking mechanisms are located between inner and outer panels, the lock mechanism projects through a central, shielding panel and is retained against longitudinal and twisting movement by a first clip engaging the end of the lock mechanism housing projecting through the shielding panel and a second clip engaging the lock mechanism between the shield and outer panels. As shown in Fig. 4, parts 12, 14 of outer and inner panels 11, 13 respectively are bridged by a panel 15 forming a pocket 17 and supporting a shielding panel 37. The latching mechanism 18 having a latch bolt 21 and lock mechanism 19a are mounted in pocket 17 and connected by shaft 29. Lock mechanism 19a is retained in position by a first spring clip 44 engaging shielding panel 37 and a second spring clip 36 holding tightly together the flange 24 of the lock mechanism housing and outer panel 12.
Patent GB-623462-A (GB)
Title: Improvements in or relating to electrical current networks
IPC: H03K5/01
Filed: 1947-03-19
Abstract: 623,462. Pulse generating circuits. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 19, 1947, No. 7537. Convention date, July 10, 1945. [Classes 40 (v) and 40 (vi)] In a system for producing pulse modulated R.F. oscillations, pulses from a blocking oscillator 11 are applied as anode supply to R.F. oscillator valves 18, 19 through a non- linear resistor 3 in order to shorten the " tail " of the modulation envelope. Coaxial line resonators 21, 22, 24, 25 determine the frequency of the R.F. oscillations. Specification 590,480 is referred to.
Patent GB-565153-A (GB)
Title: Carburettors
IPC: F02M17/28
Filed: 1943-05-12
Abstract: 565,153. Surface carburetters. McLINDON, W. F. I. May 12, 1943, No. 7587. [Class 7 (iii)] A conical wick 11 dips into fuel kept at constant level in an annular chamber 4 arranged between two conical chambers 14, 3<1> and is supported interiorly by a perforated cone 9, its exterior surface being masked by an imperforate cone 17 movable vertically to determine the area of the wick exposed to the air stream flowing from an air cleaner 16 through the conical chamber 14 and the exposed portion of the wick to the second conical chamber 3<1> which leads to a throttle chamber 2. The cone 17 cooperates with the wall of the chamber 14 to constitute a choke valve and the space within the wick and masked by the cone 17 is stated to retain a reserve of rich combustible mixture for facilitating acceleration. At low speeds, extra air is drawn in through a triangular port 24 opposite the throttle valve 3 and controlled by a slide actuated by an extension 29 of the operating arm 30 of the throttle valve 3. For 'large engines, two or more of the devices may be arranged to operate in parallel.
Patent GB-1280437-A (GB)
Title: Weighing machine
Inventor: KAMITANI HIROSHI
IPC: G01G19/50
Filed: 1971-03-23
Abstract: 1280437 Weighing-apparatus; indicating- apparatus H KAMITANI 23 March 1971 7603/71 Headings G1N and G1W A weighing-machine is provided with an adjustable indicator 22, 23 for setting to indicate the height of a person and switch means 27, 29, 30, 31 arranged to provide outputs (to lamps 12, 13, 14) signifying variation of the weight of a person from a standard weight corresponding to the height set on the indicator. A weight scale plate 24 is secured to a shaft 20 to move against an index when weight is applied to a platform. The shaft 20 carries a resilient contact arm 27 to co-operate with contacts 29, 30, 31 on a recess in a plate 16. The periphery 22 of the plate 16 is supported on arms 21 and carries a height scale 32 to move against the index when a knob 15 is adjusted to set the height of the person to be weighed. Blue, white and red lamps 13, 14, 12 are connected to the contacts 30, 31, 29 which are spaced on the plate 23 relative in the scale 24 according to the standard weight appropriate to the set height so that the red and blue lights indicate a deviation of more than say 5 kg.
Patent GB-233103-A (GB)
Title: Improvements in or relating to mechanical toys
IPC: A63H19/15
Filed: 1924-03-26
Abstract: 233,103. Brimfield, T. H., and Brimtoy, Ltd. March 26, 1924. Mechanical toys.-In locomotive toys in which a moving part or member is actuated from a driven part of the toy, the member, which may consist of a figure o, is mounted on the cranked end of a rod l mounted lengthwise of the toy and actuated by a cam k on the spring drum shaft d. The rod may be extended to operate pivoted front steering-wheels.
Patent GB-211728-A (GB)
Title: Improvements in or relating to spindles used in winding yarn on to cones, tubes and the like
IPC: B65H75/08
Filed: 1923-03-19
Abstract: 211,728. McGee & Son, Ltd., W., and White, J. B. March 19, 1923. Winding-machines.-Relates to spindles for holding cardboard cones, tubes, or the like in yarn-winding machines, of the kind wherein loose clutch devices comprising rods or rollers are mounted in longitudinal grooves in the spindle so that they automatically move to engage or release the tube upon relative movement of the spindle and tube. The spindle is provided with circumferential grooves to accommodate wire or other binding-elements 4 which engage grooves in the clutch rollers 2.