baber/WOPTO huggingface dataset:
Patent GB-557632-A (GB)
Title: Means for indicating and recording the course travelled by an aircraft relatively to the air
IPC: G01C21/14
Filed: 1942-05-29
Abstract: 557,632. Course-recording apparatus. SHAMAH, I. May 29, 1942, No. 7312. [Class 97 (ii)] Means for indicating and recording the course including both the direction of travel according to compass bearing and the approximate distance travelled by an aircraft relatively to the air comprises means for automatically turning a map in conformity with changes of compass bearing and moving it in timed relationship with the speed of the aircraft relatively to the air. The map 20 is mounted on a table 1 and is movable in any direction by being carried by rotatable rollers 33, 34 slidable endwise on shafts 35, 36. A toothed roller 21 carried by a mounting 7 engages the map 20 through the table 1 and moves it in the direction of travel of the aircraft since the roller 21 is oriented by the mounting 7 according to compass bearing of the travel direction the mounting 7 being rotated by means of a gear 8 in accordance with a master or repeater compass. The mounting 7 is also provided with a solenoid 10 to which electric impulses are imparted in accordance with the speed of the aircraft. The core 17 withdraws a needle 19 which has perforated the map to indicate the aircraft's position, the withdrawal rocking a lever 22 to lift the toothed wheel 21 into engagement with the map 20 and subsequently by means of a disc 26 rotating the wheel 21 to move the map. At the end of the impulse the needle 19 re-perforates the map to indicate the new position and lowers the wheel 21 out of engagement with the map. A frame 28 with lens 27 and balls 29 to rest on the map but permits its movement is carried by an arm 31 pivoted to the apparatus at 32.
Patent GB-726235-A (GB)
Title: A method of producing filling materials to be used together with hydraulic cements
IPC: B01F13/00
Filed: 1953-03-17
Abstract: 726,235. Fibrous compositions. LEJMARK, K. R. March 17, 1953 [Oct. 22, 1952], No. 7344/53. Class 70 A mixture of wood waste and a hydraulic binder or lime is introduced into a shoot 1 in which it is carried forward by conveying means at such a speed that the mixture is simultaneously stirred and conveyed. The conveying means are scrapers 2 attached to a chain 3. 10 per cent. by weight of the binder is used normally.
Patent GB-271203-A (GB)
Title: Means for preserving stone, brick and like work
IPC: C04B41/50
Filed: 1926-03-17
Abstract: 271,203. Anderson, W. March 17, 1926. Stone, preserving.-A composition for preserving stone, brickwork, &c. consists of one or more silicates and one or more silicofluorides, with or without the addition of fluorides. The salts used are those of the alkali or alkaline earth metals, particularly sodium.
Patent GB-473423-A (GB)
Title: Improvements in straight-bar knitting machines
IPC: D04B11/00
Filed: 1936-03-12
Abstract: 473,423. Knitting-machines. BLACKBURN & SONS, Ltd., G., START, H. W., and START, E. March 12, 1936, No. 7425. [Class 74 (ii)] Means for varying the size of the loops in straight bar machines, e.g. during the production of reinforced areas, comprises three cam levers C loosely mounted on a control shaft D for co-operation with cams A on a shaft B and provided at their outer ends with adjustable screws C3 for engagement with a cam drum F on a frame E that is fixed to the shaft D. The cam drum F is driven by pawl-and-ratchet mechanism G\ G and a cam lever G3 carrying a roller G<3> that is moved into and out of operative position by a pattern controlled rod H. When the cam levers C are released by the cam lifts Fl of the drum F they are moved by springs E<3> against adjustable screws E<4> on the frame E. When in this position the middle lever C is actuated by the middle cam to produce loops of normal length. The extra movement obtained from any one of the cams is transmitted to the needle bar J<3> by an arm J on the shaft D engaging an arm J<1> on the needlebar rocking shaft J<2>. For reinforcing areas of varying width, e.g. a graduated heel splice &c., an additional cam may be provided for actuating a lever K and a frame M the pattern drum N of which is coupled to or mounted on an extension of the drum shaft F<2>. In order to relieve the pressure on the drums F and N during the advance of the ratchet G, the roller O<2> of an arm O<1> on the shaft D is brought into the path of a cam O by the control rod H. According to the Provisional Specification the driving pawl of the pattern barrel may be controlled by an electromagnet.
Patent GB-588823-A (GB)
Title: Improvements in or relating to the production of artificial fogs
IPC: F41H9/06
Filed: 1944-04-24
Abstract: 588,823. Artificial fog production. ARNOLD, C. (Standard Oil Development Co.) April 24, 1944, No. 7620. [Class 81 (i)] Artificial fog or smoke is produced by separately feeding streams of steam and of a hydrocarbon oil to a heated conduit, the temperature and dimensions of the conduit being sufficient to vaporize the oil in the presence of the steam as it passes through the conduit, and the mixture of oil vapours and steam so formed being discharged into the atmosphere at high velocity, through one or more small orifices. The hydrocarbon oil may be a distillate oil having a flash point above 300‹F and a mid-boiling point of 700-850‹F. A fungicide, insecticide or fumigant may be added either to the hydrocarbon oil or to the vapours adjacent the orifice. As shown, water forced from a tank 2 through a pipe 9 and a heated coil 21, the resulting steam passing an injector 23 to a heated coil 22 where it is joined by the hydrocarbon oil forced from a tank 1 via pipe 8. The oil is completely vaporized in the coil 22, the mixture of oil and steam vapours being discharged through small holes 28. The coils 21 and 22 are heated by hot gases from an oil burner 20. The outlet temperature of the oil vapours and steam is preferably maintained between 700-925‹F, say 875-925‹F, with the assistance of a thermometer 26.
Patent GB-792464-A (GB)
Title: Improvements in alkaline type electric accumulators
Inventor: LUNN HAROLD BRITNOR
IPC: H01M4/26
Filed: 1955-03-16
Abstract: 792,464. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd. March 7, 1956 [March 16, 1955], No. 7636/55. Class 53. A negative electrode for an alkaline accumulator is made by applying a firm paste of cadmium, cadmium oxide or cadmium hydroxide powder, water and an adhesive substance to a metallic grid, at least in part drying the paste and consolidating it by pressure. The adhesive substance may be starch, dextrine, glucose, molasses, a modified cellulose derivative, polyvinyl alcohol, sodium silicate or an emulsion of polymethyl methacrylate or a mixture of these. When the powder used is cadmium oxide or hydroxide, the dried and pressed paste is cathodically reduced to cadmium against sheet steel electrodes in a potassium or sodium hydroxide solution. The plate is then washed and dried and the paste again consolidated under pressure. Additional materials, e.g. iron, cobalt, nickel, copper or mercury or their oxides may be added to the paste. Specification 792,465 is referred to.
Patent GB-760146-A (GB)
Title: Electric circuit breaker
IPC: H01H33/06
Filed: 1954-03-16
Abstract: 760,146. Are-rupturing in switches; heavycurrent switches. GRATZMULLER. J. L. March 16. 1954 [March 30, 1953], No. 7639/54. Class 38(5) In a circuit-breaker having contacts 3, 10, an arc-proof solid dielectric body is provided which comprises a fixed portion 4 having an aperture 1a through which contact 3 extends, and a movable member 1 which is seated against the periphery of the aperture when the contacts are separated to ensure arc-proof and gas-tight sealing of the aperture, and is withdrawable to permit re-connection of the contacts. Member 1 is moved to its closed position by a slidable member 5 which is connected through linkage 6, 7 with movable contact 10, and is opened by springs 11 which bear against the bottom of recess 2 in member 1 through elements 26-31. The contacts may be opened by a hydraulic jack arrangement 52 (Fig. 3), comprising piston 53 carrying a rod 13 and which exerts pressure on stirrup member 54 on which spring 55 bears to ensure the return stroke. The jack is fed from an air-oil accumulator 60 under control of an electrically operated valve 61. The oil being fed back on release to tank 59 under control of valve 63. Rod 13 acts on member 5 through a lost-motion arrangement so that contact 10 is withdrawn and member 1 closed to extinguish the arc formed between the contacts when rod 13 has reached it maximum speed. When pressure is released on jack 52, the return spring 11 moves members 1, 5 downwardly, causing linkage 6, 7 to operate to close the contact 10.
Patent GB-933527-A (GB)
Title: Improvements in or relating to induction meters
IPC: G01R11/40
Filed: 1962-02-27
Abstract: 933,527. Induction meters. LANDIS & GYR A.G. Feb. 27, 1962 [March 10, 1961], No. 7658/62. Class 37. Relates to an induction meter having three or more drive systems I, II, III (in plan Fig. 1), disposed about the rotor shaft 1 at equal angles and having a rotary field error compensating assembly 15 provided adjacent to the rotary disc 4 of the meter and connecting together each of the cores 10 of the pressure coils of the drive system at their ends 11 which are adjacent to the disc. The compensating assembly comprises angled securing yokes 17 and a Y-shaped member 18 composed of ferromagnetic material. Between the Y-shaped member and the yokes 17 may be interposed magnetically non-conducting spacing plates 20 to control the magnetic coupling, or these plates may be interposed between the yokes 17 and the pressure poles 11.
Patent GB-182517-A (GB)
Title: An improved gas saving apparatus for gas cooking stoves
IPC: F24C15/10
Filed: 1921-05-30
Abstract: 182,517. Mitchell, E. May 30, 1921. Heat-distributors.-A device. for heating two utensils by a single burner comprises a box or casing having two openings D, E for utensils in the top, beneath one of which is an opening in the bottom for the flame ; an interior fitting A of the form shown surrounds the openings and provides a passage from one to the other. '
Patent GB-456840-A (GB)
Title: Improvements in and relating to oscillation generators known as multivibrators
IPC: H03K5/00
Filed: 1935-03-12
Abstract: 456,840. Valve generating circuits. WHITE, E. L. C., 32, The Rise, Hillingdon, Middlesex. March 12, 1935, No. 7730. [Class 40 (v)] In a multi-vibrato] circuit for deriving im pulses of a desired fre quency and duratior from applied impulses of a different frequency or duration, one of the coupling-circuits of the pair of valves. has a time constant greater than that of the other coupling-circuit and much greater than the period of the applied impulses. As shown, a pair of triode valves V1, V2 are provided with anode resistances R3, R4, of which the latter is preliminarily adjustable, grid leak resistances R1, R2 and reciprocal coupling- condensers C1, C2. The input is applied through a condenser C4 across the anode and cathode, or grid and cathode, of the valve V2, and the output is taken through a condenser C3 from the anode and cathode of the valve V1. The time constant C1, R1 may be from 20 to 100 times the period of the derived impulses and may be fixed, and the effective time constant C2, R2 is variable by means of a variable resistance R2 or by varying a positive bias applied to the grid of the valve V2. If the time constant C2, R2 is less than the period of the applied impulses, the impulses derived from the condenser C3 are of the same periodicity, but their duration varies with the setting of the adjustable resistance R2. If the time constant C2, R2 lies between n times and n+1 times the period of the applied impulses, the output period is n+ 1 times the input period. Tetrode, pentode, or other multi-grid valves may be employed, the input impulses being applied to a grid other than that used for the reciprocal coupling, Figs. 2 and 3 (not shown).
Patent GB-799596-A (GB)
Title: Improvements in or relating to tape perforators
IPC: H04L17/12
Filed: 1957-03-08
Abstract: 799,596. Tape perforators. OLIVETTI & CIE SOC. PER AZIONI ING, C. March 8, 1957 [March 27, 1956], No. 7731/57. Class 31 '2). A tape perforator comprises a set of selectable punches 16 and a die block 5, the latter being movable in a path defining a closed geometrical figure and including a component directed longitudinally of the punches to cause perforation of a tape 18 and a component directed longitudinally of the tape to cause it to advance. The die block is pivotally mounted on an eccentric 6 secured to a rotatable shaft 7 and has secured thereto two side plates 10 each having an upper slotted end 11 embracing a roller 12 provided on a shaft 13 having its ends secured to the side plates 8 of the perforator frame. Secured between the side plates 10 are transverse plates 14, 15 forming a guide for the punches 16 the upper enlarged ends 19 of which rest on a slotted plate 20 adjustably secured to the perforator frame. Resting on each punch end 19 is a vertically-slidable spring-urged member 21 the upper end of which co-operates with a projection 25 of a horizontally-slidable spring-urged interponent 26 movable by means of an eccentric 30 provided on a shaft 31 driven in synchronism with the shaft 7. Each interponent is controlled by the pivotally-mounted spring-urged armature 32 of a magnet 33. Upon energization of selected magnets 33 and subsequent rotation of the shafts 7, 31, the projections 25 of the corresponding interponents block the associated members 21. Simultaneously therewith, the eccentric 6 imparts a bodily movement to the die block 5 and punch guide 10, 14, 15 to cause them to describe a substantially elliptical path. During the movement of the die block, the punches blocked by their associated interponents perforate and penetrate the tape, and the tape is advanced by being pinched between the die block and the punches. The length of the advancing step of the tape may be varied by adjusting the slotted plate 20. To prevent retrograde movement of the tape after each advancing step, the die block has secured thereto a flat spring 37 the left-hand end of which enters a slot in a lug 38 of a verticallyslidable bail 39 the beam 42 of which has secured thereto a friction pad 43 which is normally urged by the spring 37 to rest upon a stationary friction pad 44. To prevent the tape from being advanced when no punches are selected, the members are locked in their upward positions by means of a bail 47 secured to a pivotally-mounted spring-influenced arm 48. The members 21 are unlocked by energizing a magnet 51. The perforator may be provided with an additional, constantly conditioned punch for perforating feed holes in the tape.
Patent GB-701394-A (GB)
Title: An improved device for lifting narrow slabs such as pavement kerbs and the like
IPC: E01C19/52
Filed: 1951-04-04
Abstract: 701,394. Lifting dogs. RUTHERFORD, W. April 3, 1952 [April 4, 1951], No. 7796/51. Class 78 (4) [Also in Group XXIII] A device for lifting kerbs and the like comprises two pivoted gripping arms comprising single or paired members 1 and 2, one arm 1 is extended beyond the pivot and is connected by a pivot 5 to a rectangular frame 6 lying parallel with the arms and guided by uprights 10 on the arm 2. The frame has transverse members 7 and splayed ends carrying handles 9. Raising the handles effects lifting the kerb. This can be applied to a gripping device of the kind described in Specification 645,790. For heavier loads two or more devices are combined by passing a bar through the frames and upper arms 1, replacing the pivot 5. The bar is provided with holes and pins which prevent the devices moving. For curved kerbs, wedges are combined with the gripping pads 3 and 4.
Patent GB-973505-A (GB)
Title: Improvements in or relating to tools for making surface patterns
IPC: B21H7/00
Filed: 1961-03-03
Abstract: 973,505. Rollers. CIBA Ltd. March 3, 1961 [March 4, 1960], No. 7840/61. Heading F2U. [Also in Divisions B3 and B5] A tool for making surface patterns comprises a plurality of juxtaposed circular discs each having a series of sawtooth-like projections formed in its peripheral edge the discs being mounted on a common mount so that the sawtooth-like projections form a regular surface pattern as shown in Fig. 3. In an embodiment a large number of saucer-shaped discs 62 are mounted on a bolt 60 and held together by a nut 64. Two pins 72 secure the discs against relative rotation. The sawtooth surfaces are produced with a high surface quality by milling and polishing or by a diamond cutter prior to assembly of the tool and such surface is not impaired during assembly of the tool. French Specification 1,268,800 is referred to.
Patent GB-137694-A (GB)
Title: Improvements in and relating to artificial limbs
IPC: A61F2/60
Filed: 1919-03-29
Abstract: 137,694. Petron, A. K. March 29, 1919. Limbs, artificial.-In limbs having parallel side members spring-jointed to other parallel side members, a coil-spring forms the upper portion of the framework, the whole limb is stuffed with metallic hair or finely coiled wire, and is covered with a rubber envelope, the upper layer of the stuffing being shaped to form a pocket for the stump. Fig. 1 shows the framework for a leg, the side members 18 being jointed at 20 to the members 19 and controlled by a spring 21. A closely coiled spring 26 surrounds the side members at the upper part, shown complete in Fig. 2, and is connected to them by plates 27, a distancepiece 25 uniting the side members. The metallic filling is shown at 15, and the rubber envelope at 14. The leg is formed with a belt 16 laced at 17 for securing it to the body.
Patent GB-752673-A (GB)
Title: Improvements in or relating to a process and apparatus for desulphurising pig iron
IPC: C21C1/02
Filed: 1954-03-18
Abstract: 752,673. Desulphurizing pig iron. A.R.B.E.D. ACIERIES REUNIES DE BURBACH-EICHDUDELANGE SOC. ANON. March 18, 1954 [March 18, 1953], No. 7925/54. Class 72. Pig iron is desulphurized by first freeing the liquid metal from blast furnace or mixer slag and feeding it to a partitioned container having a basic or neutral lining, a desulphurizing agent being present through which the pig iron passes. As shown, liquid pig iron is poured into a vessel A, the slag being retained in the larger compartment from which it may be led into a ladle C and the clean pig flowing into a container B where it meets a desulphurizing agent, e.g. soda ash. The final desulphurized pig iron flows into a ladle for further treatment. When the soda ash slag is exhausted it is poured into a ladle D and a fresh slag formed. The container B may be heated and tiltable.
Patent GB-624589-A (GB)
Title: Cutting nippers for objects difficult of access
IPC: B23D29/02
Filed: 1947-03-24
Abstract: 624,589. Cutting-nippers. SKOOG, J. A. March 24, 1947, No. 7966. [Class 61(ii)] Cutting nippers for objects difficult of access comprise a jaw 2 detachably secured to the upper end of a tube 4 and a jaw 3 pivoted to the jaw 2 and provided with a lateral arm 6 and cross pin 7, the arm 6 being connected through a link 9 to the forward end of a rod 13 which is slidable within the tube and linked to handles 1 pivoted to the lower end of the tube 4. The pin 7 is maintained in an open bearing at the upper end of the link 9 by the forked end 15 of a slide 14. The lower end of the link 9 is pivoted to a slide shoe 11 connected to the forward end of the rod 13 oy a screw 12 which enters a slot in the tube 4.
Patent GB-437571-A (GB)
Title: Improvements in closure for article of apparel
IPC: A41D1/06
Filed: 1935-03-15
Abstract: 437,571. Sliding - clasp fastenings. SALWEN, N., 250, Crown Street, Brooklyn, New York, U.S.A. March 15, 1935, No. 8180. Convention date, Nov. 28, 1934. [Class 44] [See also Group VII] A sliding - clasp fastening for the fly opening of a pair of trousers is characterized by a second slider 18 independently movable and normally spaced from the first slider 17 which is disposed adjacent the waistband when the fly slit is closed, the second slider 18 being disposed at the apex 19 of the fly slit when the slit is closed, and having a function opposite from that of the slider 17, so that it effects an opening of the fly closure when moved towards the slider 17.
Patent GB-882397-A (GB)
Title: Improvements relating to the manufacture of pneumatic tyres
IPC: B29D30/52
Filed: 1958-03-14
Abstract: 882,397. Storing and supplying tread stock. DUNLOP RUBBER CO. Ltd. March 14, 1958 [March 21, 1957], No. 8196/58. Class 144(1). For maturing, prior to being cut to length for application to a tyre carcase, extruded tread stock 1 is wound directly from the extruder on to a drum simultaneously with a flexible liner 4 of stainless steel strip, of a width and length at least equal to the tread stock. As shown, the liner 4 has its ends secured one to the drum 3 and the other to an auxiliary drum 5 mounted parallel to and above the drum 3 in a common portable frame 6, the drums 3, 5 having separate chain-and-sprocket drives 7, 8, 9 and 13, 14, 15 respectively which are connectable to driving or braking means as desired. The liner 4 is maintained close-coiled on the take-up drum 5 by a spring-loaded pressure roller 19 which bears against the outer convolution of the liner on the drum 5. The convolutions on the drum 3 are likewise maintained close-coiled during winding or unwinding by a strap 22 partially encircling the coils at the underside of the drum and maintained pressed thereagainst by a lever 26 under the action of a adjustable spring 28. To prevent plastic flow of the upper portions of the tread coils during storage, under the weight of the coils, the coils are supported by a rigid cylindrical cradle 32 carried at each end on eccentric levers 34 below the drum 3 whereby the cradle can be raised to a predetermined position. The tread stock is delivered from the drum 3 on to a table 39 comprising rollers 41 and lateral guides 43, the table having a roller 42 at its end to bear on the outermost coil of liner 4 and a small roller 44 slightly in advance of the roller 42 to separate the tread stock 1 from the liner 4. The position of roller 44 is adjustable by a lever system 45, 46, 47 and may be driven. From the table 39 the tread stock passes on to a table 57 below a cutter 58 and thence to a table 63 which is pivotable about a pedestal 64 to present the cut tread length to a tyre building drum. To ensure correct location of the drums 3, 5, the frame 6 has formations on its feet to locate in complementary formations adjacent the extruder and the other associated apparatus.
Patent GB-1367673-A (GB)
Title: Electrical isolation of battery cells having a circulating electro lyte system
IPC: H01M50/77
Filed: 1972-03-02
Abstract: 1367673 Battery with flowing electrolyte JOSEPH LUCAS (INDUSTRIES) Ltd 2 March 1972 [26 March 1971] 8219/71 Heading H1B A battery comprises a number of cells 10 each having a magnesium anode 11 surrounded by an air cathode 12, electrolyte from a common source being circulated through the cells and returning to the source. The electrolyte flow path includes an inlet manifold 14 and an outlet manifold 15 to which the cells 10 are connected by tubes 16. Air for the cathodes 12 is supplied by a line 13 and leaves through line 25. To prevent the formation of an electrically conducting path between the cells by the electrolyte, air bubbles are introduced into the manifolds 14, 15 through bleed lines 17, 18. The air bubbles are prevented from entering the cells by providing the tubes 16 with U-shaped portions 19, 20 and by hump-shaped portions 24 in the inlet manifold 14.