baber/WOPTO huggingface dataset:
Patent GB-611287-A (GB)
Title: Improvements in chain hoist
IPC: B66D3/02
Filed: 1946-04-26
Abstract: 611,287. Load-handling apparatus. WILKINSON, E. M. April 26, 1946, No. 12667. [Class 78 (iii)] A lifting apparatus which moves with its load in either direction along a suspended chain, has a pair of chain . engaging claw levers pivoted to a hand lever which is reciprocated to move the claws link by link along the chain and is provided with means which may be moved in or out of engage. ment with the claw levers to control the direction of movement of the apparatus along the chain. In the embodiment shown, the hand lever 11, Fig. 1, carries pivoted claw levers 5, 6 and a load-engaging member 12, the claw ends 7, 8 of levers 5, 6 being urged together by a spring 17. Reciprocation of the lever 11 causes the levers 5, 6 to advance alternately one link at a time over opposite sides of the supporting chain, so lifting the load. The apparatus is set for its lowering operation by rotating through 90 degrees a bolt 22 to position projections 25, 26 to limit the outward movement of the claw levers. A spring-loaded detent pin 31 locates the bolt 22 in adjusted positions. Member 12 may be anchored to enable the chain to be drawn in or paid out.
Patent GB-480636-A (GB)
Title: Improvements in or relating to coin-freed vending machines
IPC: G07F11/18
Filed: 1937-05-04
Abstract: 480,636. Coin - freed article delivery apparatus. SEITZ-WERKE GES. May 4, 1937, No. 12681. Convention date, May 4, 1936. [Class 27] In a coin-freed machine in which the bottom article of a pile 19, Fig. 1, is delivered by a drawer, the bottom 17 of the drawer is adjustable in height to adjust the drawer to deliver packets of different thicknesses. The bottom 17 has at each end a pair of lugs, which engage in a pair of a series of slots 14, 14 or 15, 15, Fig. 2, in the end walls 12, 13 of the drawer casing, the side walls 11 being formed from a U-shaped member, which is secured to a plate 10 by screws 28 passing through keyhole slots. The end wall 13 is of angled shape, is hinged at 21 to a yoke 22, and is secured to the plate 10 by a screw 33 which also passes through the web 11<1> connecting the side walls 11. When the bottom 17 is to be adjusted, the drawer is pulled out and the inside metal casing 11, 12, 13, 17 is removed from the plate 10. The end wall 13 is then rocked about its hinge 21 to release the bottom 17 which can be replaced in a different set of holes 14, 15. The holes 14 are slightly staggered with respect to the holes 15 and the lugs on the bottom 17 can be made to engage either a pair 15 or a pair 14 by turning the bottom 17 over. A member 23 which limits the size of the drawer endwise is adjustably attached to the yoke 22 by a screw 25 passing through a suitable hole 24 in the member 23. A modification is described in which the end wall 13 of resilient material fits into a slot in the base-plate 10. In another modification, Fig. 7, the bottom 17 has tubular guides 34 fitting over pins 35 on the base 10 and is pulled towards the base 10 by springs 36. The height of the bottom is adjusted by one or more cams 37 which are operated and locked in position from the outside.
Patent GB-1502113-A (GB)
Title: Valve for respirators
IPC: A61M16/20
Filed: 1975-03-26
Abstract: 1502113 Respirator valves KOMBINAT MEDIZIN - UND LABORTECHNIK LEIPZIG VEB 26 March 1975 [4 April 1974] 12691/75 Addition to 1481246 Heading A5T A respirator valve, which includes a trigger connection 15 from the patients air space which may be connected directly to a respirator or via the respirator breathing tube, comprises a housing 1, an inlet 2 for compressed gas, an outlet 3 for exhaled air, and an inlet-outlet for connection to the patient 9, in which the inlet for compressed gas and the outlet for exhaled air comprise stub pipes with openings 5, 4 in their side walls within the housing which are closable by an elastic diaphragm 6 on their outside and inside respectively and in which the inlet-outlet for connection to the patient can communicate with the interiors of the stub pipes via said openings. As described, the diaphragm has the shape of a finger stall, and there may be provided an extra valve 7 in the outlet to provide a double non-return function. To facilitate connection of the trigger via the respirator breathing tube a connection piece (18, Fig. 2 not shown) may be provided between the breathing tube (19) and the inlet for compressed gas 2 with a branch for connecting a narrow line (17) to the trigger connection 15.
Patent GB-625900-A (GB)
Title: Scientific measuring instruments of the mirror type
IPC: G01G21/00
Filed: 1946-04-26
Abstract: 625,900. Weighing-apparatus. VIAZEMSKY, S. V. CONSTANTINOVITCH, PRINCE. April 26, 1946, No. 12725. [Class 143] [Also in Groups XIX, XX, XXXIV and XXXV] In a measuring instrument of the mirror type the movable part embodies one or more permanent magnets placed in a permanent magnetic field which applies to the movable part forces which counterbalance the force of gravity or any other external force. A rotatable cylinder 12 embodies permanent magnets or consists of a permanent magnet having North and South poles 13, 14. Immediately beneath the cylinder 12 is fixed a permanent magnet 15 with poles opposite similar poles of the cylinder 12. A permanent magnet 16 secured to a support 118 and a similar magnet similarly supported on the opposite side of the cylinder prevent lateral motion of the cylinder. To prevent endlong movement, permanent magnets 20, 21 are mounted on fixed supports fixed to the base 19. The surrounding permanent magnets may be united to form a trough to hold a lubricating liquid. For delicate weighing the cylinder 12 carries a disc 24 on which is fixed a mirror 25 co-operating with a light projector 26 and a scale 27. The material to be weighed is placed in a pan 28 carried by the disc 24, the deflection due to the rotation of the cylinder 12 about its axis being measured by the deflection of the light beam. The mirror may be partly balanced by a counterweight 29. The apparatus may be enclosed in an airtight chamber, which may be evacuated. The light projector and scale may be outside the casing. The trough may be formed partly by the magnets and partly by non- magnetic material. The permanent magnets may be replaced by electromagnets. A fixed permanent magnet may be supported above the cylinder 12 with its poles of opposite polarity to the corresponding poles of the cylinder.
Patent GB-861986-A (GB)
Title: Improvements in and relating to the production of polymers
Inventor: GRADY DENNIS
IPC: C08F2/26
Filed: 1956-07-04
Abstract: Polymer emulsions are made by the free-radical polymerization of one or more ethylenically unsaturated compounds dispersed in an aqueous medium with the aid, as a protective colloid, of a water-soluble salt of methacrylic acid and a minor proportion of vinyl acetate. Monomers specified are vinyl acetate and propionate, esters of acrylic and alkacrylic acids, vinyl and vinylidene chlorides, acrylonitrile, methacrylonitrile, styrene and butadiene and, as monomers copolymerizable with vinyl acetate, dibutyl maleate and fumarate.  Catalysts specified are persulphates and hydrogen peroxide, which may be used in conjunction with water-soluble reducing sulphur compounds.  Also present during the reaction may be a sequestering agent, e.g. a water-soluble salt of ethylene diamine tetra-acetic acid, an agent to prevent the development of acidity, e.g. sodium bicarbonate, and, in the preparation of polyvinyl acetate, a plasticizer such as dibutyl phthalate or triethylene glycol di-2-ethyl butyrate. Both catalyst and monomer may be added gradually during the course of the reaction.  The Specification describes also the preparation of the above protective colloids by the following procedures: (A) by heating a mixture of an aqueous solution of sodium methacrylate of pH 6, vinyl acetate and ammonium persulphate; (B) by heating a benzene solution of methacrylic acid, vinyl acetate and benzoyl peroxide and neutralizing the product with caustic soda, and by other processes which are variants of the above procedure (A).
Patent GB-959165-A (GB)
Title: Improvements in and relating to high vacuum pumps
IPC: F04B37/08
Filed: 1963-04-01
Abstract: 959,165. High vacuum pumps. BALZERPATENT-UND LIZENZ-ANSTALT. April 1, 1963 [April 2, 1962], No. 12754/63. Heading F1N. [Also in Division F4] A high vacuum pump comprises a suction tube 1 connected by a flange 2 to the vessel to be evacuated and surrounded by a shell 6 spaced therefrom so as to provide an annular space occupied by a coil 5 having spaced turns through which is fed a compressed coolant gas, e.g., hydrogen helium or neon admitted through an inlet 7 and expanded at a valve 11 to provided a pool of liquid coolant 4, surrounding the closed end 3 of the tube 1 and from which coolant vapour is exhausted through a coil formed between the turns of coil 5 and which is in good thermal contact with the flanged end of tube 1 thereby serving to cool the same. A turbine or piston expansion engine 9 in parallel with the coil 5 serves to cool the hydrogen prior to expansion at valve 11. The apparatus also includes an evacuated casing 14 connected to a diffusion pump 15 which communicates with tube 1 through apertures 16.
Patent GB-401596-A (GB)
Title: Improvements in or relating to journal bearings
IPC: F16C33/10
Filed: 1933-05-02
Abstract: 401,596. Cylindrical journal bearings ; lubricating. SIEMENS - SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. May 2, 1933, No. 12824. Convention date, Sept. 30, 1932. Addition to 376,692. [Classes 12 (i) and 12 (iii).] The plain bearing according to the parent Specification is modified by providing the bearing bush 12 within the U-shaped ring 14 cohtaining the lubricating wick 15, with flanges 13 at both its ends. These flanges which lie in recesses in the ring 14 and project laterally from it take up any axial thrust. One face of the ring 14 is closed by a cap 16 and the ring is prevented from rotating with respect to the supporting bracket 18 by means of a screw 19 projecting into a radial bore 17 in the ring. The screw-hole serves as an oil filling opening. The wick 15 contacts the shaft through the radial bore 17 which is continued through the bush 12. The bush 12 is preferably of drawn bearing bronze. The bearing is closed laterally by covers 20.
Patent GB-706243-A (GB)
Title: Improvements relating to the manufacture of beach and like balls
IPC: B29D22/04
Filed: 1952-05-21
Abstract: 706,243. Moulding beach balls &c. MANDLEBERG & CO., Ltd., and TONGE, A. May 21, 1952, No. 12828/52. Class 87 (2) Means for use in making beach and like iridia rubber balls comprise a divided outer mould and a core 1 of the desired external shape, between which the balls are moulded, the core being supported by a shank or rod 2 projecting through the mould at the point where the opening of the ball is produced and having means for'admitting compressed air into the ball at a point opposite its opening, and a container 5 into which a moulded ball is stripped from the core. After the ball has been moulded round the core 1 the mould, which is in two sections, is removed and the container 5 is placed round the core and moulded ball, the bottom of the container having a concave central part 6 surrounded by a deep and narrow channel 7. Compressed air is then admitted to a cylinder 21 and supply pipe 11, and the piston in the cylinder moves a stem 9 downwards, against a spring 16, and opens a valve 3, whereby compresed air flows through a duct 10 and passage 8, surrounding the stem 9, into the core and out through the valve 3 to the inside of the moulded ball. The air blows the ball away from the core 1 until its lowest part bears against the concave part 6 and then drives the surrounding part of the ball into the channel 7, the opening in the ball stretching so that the ball passes over the core as it is stripped.
Patent GB-755883-A (GB)
Title: Device for receiving and evaluating telegraph signals
IPC: H04L17/18
Filed: 1954-05-04
Abstract: 755,883. Printing - telegraph receivers. CREED & CO., Ltd. May 4, 1954 [May 5, 1953], No. 12931/54. Class 40 (3). In a printing-telegraph receiver, testing levers under the control of the armature of the receiving magnet and of sequentially arranged cams on the receiver shaft engage the first arms of four-armed setting devices each having a second arm engaged to return the devices to a normal position. The third and fourth arms are selectively engaged by projections on sensing members simultaneously operated at the end of a signal to position selecting rings controlling the printing or perforating of a character. The spring-biased armature 2 is moved towards the core of the magnet 1 at about the middle of the received signal elements and when released in response to a spacing or no-current impulse, latches the end of a testing lever 13 ... 17 so that a cam 23 ... 27 moves the end 28 ... 32 to engage an arm of the setting device 33 ... 37 which is rocked and retained by its pawl 38 ... 42. If tne armature 2 is attracted, the testing lever 13 ... 17 pivots about its upper end in contact with the arm of the setting device 33 ... 37. At the end of a signal, the sensing levers 48 ... 52 are moved to the left and selectively engage the arms 56 ... 60 or 61 ... 65 of the setting devices to effect the appropriate rotation of the rings 66 ... 70 to control the printing operation. The rings also position interponents 71 ... 75 to effect selective operation of punch pins 77 ... 81 under control of an operating arm 76. When the rings 66 ... 70 have been set, an arm 82 actuated by a cam on the shaft 85 returns the actuated setting devices 33 ... 37 to their normal positions. The stop member 88 holds the levers 13 ... 17 and the arm 82 so that they are engaged solely by the humped portions of their associated operating cams on the shaft 85.
Patent GB-663798-A (GB)
Title: Improvements relating to fluid filters
IPC: B01D35/00
Filed: 1949-05-16
Abstract: 663,798. Fluid filters. FRAM CORPORATION. May 16, 1949, No. 12987/49. Class 46 A fluid filter, e.g. for gasoline, comprises a filtering element 30 in the passage between the duits 11, 12 of the filter, the element being resiliently urged against a seating 22 to provide a seal but being raised off the seating should it become clogged, so as to be byepassed and indicator means adapted to be secured to the seating 22 and to move in response to the movement of the filtering element from its seating. A U-shaped member 41 having its arms under tension is held at its ends by the filtering element 30 when in seated position but released, as shown, when the element 30 is raised from its seating. Flange 39 on washer 38 is scalloped or otherwise formed to permit flow of fluid to conduit 14 when the element 30 is raised from its seating. The bowl 17 containing the element 30 is transparent.
Patent GB-281170-A (GB)
Title: Improvements in folding brackets or hinges for shelves, flaps and the like
IPC: A47B57/04
Filed: 1927-05-14
Abstract: 281,170. Bailey, W. S. J. May 14, 1927. Folding brackets. - A folding bracket or hinge for supporting a shelf &c. is constructed so that the shelf has to be initially tilted before it can be drawn forward and rotated. In the construction shown a projection D and a stud C on a base plate A, secured to a wall &c., respectively engage a recess E and keyhole slot F formed in a bracket arm B secured to the shelf &c. The initial tilting of the arm. B disengages the recess E from the projection D when the arm can be driven forward until the stud lies in the large end of the slot F, when the arm can be rotated downwardly as shown in Fig. 5 or upwardly. The stud C is provided with two parallel faces to prevent rotation of the arm B except when the stud C lies in the large end of the keyhole slot F.
Patent GB-143281-A (GB)
Title: Improvements relating to message-carrying shells
IPC: F42B12/42
Filed: 1918-08-12
Abstract: 143,281. Bourguignon, L. Aug. 12, 1918. Projectiles; fuses. - Relates to message-carrying projectiles, and consists in combinations of parts intended mainly to prevent the projectile from burying itself in the ground. The message-carrier 3 and a plug 4 are fitted into the base of the shall 1 either friction-tight or by shallow screw-threads easily stripped. The carrier 3 is attached by a chain and an elastic washer or by a flexible connexion 20 to a Bengal light or fume-producing body 19 protected by a wad 18 from an explosive charge 17 adapted to be fired by an adjustable time-fuse 11 ignited by a primer 18 struck by an inertia pellet 6 at the moment of discharge from a gun. The explosion expels the message-carrier and the Bengal light rearwards from the shell and counteracts their forward velocity. The Bengal light is set alight by a fuse 21 ignited by the explosion. In a modification, the message-carrier is attached directly to the Bengal light, and the explosive charge is fired by a percussion fuse on impact with the target. In another modification, the message-carrier is constituted by a tubular tail provided with vanes, the explosive charge is fired by a longitudinal time-fuse, and the explosion gases escape through forward holes in the shell to check its speed. In still another modification, the explosive charge is arranged between the message-carrier and the Bengal lights, and these are not ejected by the explosion, but only distended to open the Bengal light to the air and cause the projectile to turn over and lose its speed by the shifting of the centre of gravity.
Patent GB-1166802-A (GB)
Title: Process for the Preparation of 1-n-Butyl-2',6'-Pipecoloxylidide
Inventor: TULLAR BENJAMIN FRANKLIN
IPC: C07D211/60
Filed: 1968-03-18
Abstract: 1,166,802. n - Butyl - 2<SP>1</SP>,6<SP>1</SP>- pipecoloxylidide. STERLING DRUG Inc. 18 March, 1968 [20 March, 1967], No. 13053/68. Heading C2C. n - Butyl - 2<SP>1</SP>,6<SP>1</SP> - pipecoloxylidide is prepared by reducing with formic acid 1-(2-butenyl)-2,6<SP>1</SP>. pipecoloxylidide, resulting from the reaction of nbutyraldehyde with 2<SP>1</SP>,61 - pipecoloxylidide, obtained by the hydrogenation of 2<SP>1</SP>,61.pico. linoxylidide. Pharmaceutical preparations with local anaesthetic activity contain the title compound as the active ingredient and pharmaceutically-acceptable carriers or diluents.
Patent GB-915609-A (GB)
Title: Photographic enlarger
IPC: H04B3/44
Filed: 1961-04-11
Abstract: 915,609. Photographic enlargers. AGFA A.G. April 11, 1961 [April 14, 1960], No. 13060/61. Class 98 (1). [Also in Group XL (b)] A photographic enlarger has a photo-electric exposure regulation device comprising a measuring unit detachably mounted behind the printing paper. In a stand-type enlarger, an image of a negative is projected on to a transparent easel. Below the easel is mounted a carrier 25, Fig. 2, which is adjusted along guide-bars 21, 23 by a handle 42a, and which has attached thereto by a bayonet fitting, a measuring unit M. Unit M comprises a transparent tubular member 27, Fig. 3, having roughened faces 27a, in which is mounted a photo-cell 28, connected to the exposure regulating device S, which controls the intensity and duration of exposure. A switch 38 is provided, in one position of which a regulated exposure takes place and in a second position, an inspection lamp is lit together with lamps 29 which produce a circle of light on the printing easel, corresponding to surface 27b, which indicates the limits of the measuring area. In a table-type enlarger, the handle 42a may project through an aperture in the side of the table. Specification 898,678 is referred to.
Patent GB-437614-A (GB)
Title: Improvements in or relating to the manufacture of alkali metal cyanides
IPC: C01C3/10
Filed: 1934-05-01
Abstract: Alkali metal cyanides are obtained by heating together crude calcium cyanamide, an alkali metal (e.g. sodium) carbonate and carbon at a temperature which at any stage of the reaction lies between 600 DEG C., and the fusion point of the mixture at that stage.  Temperatures between 600--1100 DEG  C. may be employed.  The resulting product is porous friable slightly sintered mass from which the alkali cyanide can be extracted with water.  Carbon in the form of wood charcoal or coke is preferably used in excess. The reaction may be carried out continuously in a rotary kiln heated either externally or internally by means of flue or producer gases.  The reaction product may contain cyanate produced either in the reaction or while cooling the removed charge in contact with air.  If desired, this may be removed by heating the product with carbon.
Patent GB-807705-A (GB)
Title: Sewing machine needle
IPC: D05B85/00
Filed: 1957-04-25
Abstract: 807,705. Sewing machines. SINGER MANUFACTURING CO. April 25, 1957 [May 24, 1956], No. 13186/57. Class 112 A sewing machine needle comprises a scarfed or cutaway portion 17 having a surface 20 curved about an axis parallel with the axis of the needle, and a thread eye 15 opeing into said surface, the axis of said eye lying in a plane t which is parallel with the axis of the needle and intersects a tangent plane p to said surface along the line o of contact of said tangential plane and surface. The shank of the needle is formed with a flat side 12 which co-operates with the needle clamp so as to incline the eye 15 in the direction of approach of the looptaker beak 18 and maintain the tangential plane p parallel with the path of movement of the leading edge 21 of the beak, to provide a clearance between the latter and the surface 20. The angle of inclination, a of the eye is preferably from 3 degrees to 8 degrees.
Patent GB-541281-A (GB)
Title: Improvements in or relating to electric switches having knuckling contacts
IPC: H01H1/54
Filed: 1940-08-19
Abstract: 541,281. Switches, partly electromagnetic. GENERAL ELECTRIC CO., Ltd., GARRARD, C. J. O., and RANDALL, H. Aug. 19, 1940. Nos. 13189/40 and 3621/41. [Class 38 (v)] A contact-arrangement for a contactor or circuit-breaker comprises a movable arm 2 pivoted at 3, a fixed contact 1, and a knuckling contact 4 pivoted to 2 at 5 and initially engaging 1 at the point 6, such that the angle between the continuous lines a, b, is acute (not obtuse) and approaches a right-angle in the fully-closed position with contacts 1, 4 engaging over their entire surfaces. The current loop effect of 2, 4 thus supports the spring (not shown) biassing 4 away from 2, and overpowers the smaller throw-off effect indicated by the obtuse angle between the lines c, a. In Fig, 5, the contact 4 is pivoted to the fixed member 1 at 5 and initially engages the movable arm 2 at 6, the effect of the loop a, b, tending to increase the contactpressure.