baber/WOPTO huggingface dataset:
Patent GB-547576-A (GB)
Title: Improvements in or relating to magnetos
IPC: H02K21/38
Filed: 1941-04-29
Abstract: 547,576. Magnetos. AMERICAN BOSCH CORPORATION. April 29, 1941, No. 5557. Convention date, May 15, 1940. [Class 35] A magneto comprises a unitary frame having an interior abutment, a magnetic stator including pole-pieces and connecting arms and also includes an ignition coil having a core bridging the arms, a spring fastened to the core reacting against the abutment to hold the core resiliently in magnetic contact with the arms. In the form shown the casing 1 has a cross member 2 carrying one roller bearing of the rotor shaft 20, and forming the base of a cup-shaped chamber 6 containing an impulse timer, or other drive. The other plain bearing 19 is carried by a bracket 18 screwed to a circular seat on the bottom of the casing. Bearing 19 is of porous metal surrounded by a wick in communication with a side chamber in the bracket 18 containing felt soaked in lubricant. Stator arms 29, 30 are joined by welded-on permanent magnets 33 and present four poles 28 to the laminated rotor 43 driven onto a splined portion of shaft 20. The ignition coil 36 has a laminated core 37 riveted at each end. Each rivet has an extended portion 39 at one end forming a handle and at the other end carries a spring 41 which engages an abutment 42 to press the core onto the stator arms 29. The coil and core form a unitary structure which can be removed by handles 39. The shaft 20 extends through bracket 18 to carry an interruptor cam 22 and a distributor arm 47. For short-circuiting the low-tension circuit a terminal 53 on the insulating distributor head 10 makes a spring connection with lead 54 to condenser and interruptor contact. Connection from hightension stud contact 60 runs through spring 58, embedded connector 55 and spark gaps 63 to distributor contact 52 rubbing on fixed contacts 51. Moulded pillars 61 on the casing 10 press against handles 39 to hold the coil unit in place during operation. The box member 13 forms a labyrinth ventilator. Specification 547,577 is referred to.
Patent GB-471118-A (GB)
Title: Improvements in permutation locks
IPC: E05B37/18
Filed: 1936-02-25
Abstract: 471,118. Permutation locks. HERBST, H. Feb. 25, 1936, No. 5622. [Class 44] A permutation locl of the kind comprising a series of notched discs normally engaging pro jections on a movable member, has the disc: supported directly in semicircular bearings instead of being mounted on a rod or series of pins. Figs. 1 and 2 show a padlock in which the shackle e is engaged by hooks c<2> on a sliding member c having projections c<1> engaging discs a. These discs are seated in semicircular recesses in a fixed member b and are retained therein by a plate k slotted to clear finger pins on the discs. When the padlock is locked the plate k is retained in position by projections h on the member c, but when open the plate can be pulled forward to permit of the discs being rearranged. A spring r normally keeps the member c in the locked position but when the discs have been set, pressure on the end of a rod s depresses the spring and a weaker spring p moves the member to its unlocked position. The discs are retained in their normal position by springs engaging grooves on the edges of the discs, or flats a<2>, Fig. 7, may be formed on the discs for engagement by springs f which return the discs to their initial position when released. Withdrawal of the plate k rotates on shaft f<2> to raise the springs clear of the discs. A modification is described having two rows of discs a the rod s being arranged between them and being surrounded by two helical springs, corresponding to the springs p, r, which act on a lug on the slide.
Patent GB-725835-A (GB)
Title: Plant for converting liquid soap into solid bars
IPC: C11D13/12
Filed: 1953-02-28
Abstract: 725,835. Solidifying soap by cooling. PISONI, R. Feb. 28, 1953, No. 5674/53. Class 29. [Also in Group V] Hot liquid soap is forced through a pipe S into a cooled shaping channel 8 formed in the periphery of a rotating disc 2 and emerges at A as a continuous solid block which is cut into cakes by a cutter 18, the cakes being taken away by a conveyer 19. The open side of channel is closed over most of the circumference of the disc by a steel belt 10 passing around an adjustable pulley 17. Belt 10 has a rubber jacket 13 secured thereto. Cooling brine is forced through pipe 6, passage 20 in shaft 5 on which disc 2 is fixed, flexible hose 21, jacket 9 around channel 8, hose 22, jacket 13, hose 23, pipe 24 and passage 25 in the shaft. The shaft may carry two or more discs 2.
Patent GB-855336-A (GB)
Title: Pressure and vacuum relief valve assemblies
IPC: F16K17/194
Filed: 1957-02-20
Abstract: 855,336. Valves. LUND, P. Feb. 20, 1957 [Feb. 24, 1956], No. 5772/57. Class 135. A combined pressure and vacuum relief valve comprises a housing 1 in which a pressure relief valve 12 and a vacuum relief valve 16 are arranged one above the other and is characterized in that the housing is constructed with an outer cylindrical shell, integral therewith, which over part of its circumference forms a protective shield for the valve outlet 26. The pressure relief valve 12 seats on a ring 11, which is adapted to provide a seat for a cylindrical insert member 15 screwed into an opening in the partition 2, the insert member providing a seat for the vacuum relief valve 16. The cylindrical insert member 15 is constructed with large passage openings 23 covered by a fitter 24. Access to the valves and filter is gained through a removable cover 18 in the top of the housing. In another embodiment the internal partitioning of the valve is modified so that the uppermost valve is the pressure relief valve. A further embodiment provides a separate outlet at the top of the housing for the pressure relief valve.
Patent GB-177500-A (GB)
Title: Improvements in or relating to push-button electric switches
IPC: H01H13/58
Filed: 1922-02-27
Abstract: 177,500. Bilde, T. E. D. March 21, 1921, [Convention date]. Switches, quick-action.-A push-button switch comprises an axially moving screw-shaped member 4 which transmits motion to a driving member 21 so that the latter, by means of two circular co-operating rows of teeth 19, 20, moves the rotary contact carrier 11 to cover contact springs 10 which may be directly stamped from the disc or carrier 11 to engage with contacts 14 on a circular row of teeth 13 fixed to the socket 1. The member 4 is prevented from rotating by lugs 7 on a member 8 engaging slots 6 in a sleeve 5. On releasing the button 3, the teeth 20 slide over the teeth 19 and the switch remains closed. Opening is effected by further operation of the button. By adding to the number of contacts 14, many group connections may be effected. For this purpose, a standard socket is employed having a comparatively large number of teeth, and one or each of the other discs 11 and 21 has the same comparatively large number of teeth. Figs. 9, 10, and 12 show a modification in which the ends of the contact springs 10 are of hook form to engage with upwardly projecting teeth.
Patent GB-715221-A (GB)
Title: Improvements in or relating to piperylene synthetic rubber
IPC: C08F36/04
Filed: 1952-03-06
Abstract: Olefin-piperylene copolymers are prepared by cooling to below -75 DEG C. a mixture containing an olefin containing from 4 to 8 carbon atoms and 35 or more percent. of piperylene, and adding thereto a dissolved Friedel-Crafts polymerization catalyst. Modifiers such as butene-1, butene-2, trimethylethylene and diisobutylene may also be present in amounts from 5 to 40 per cent. by weight of the mixture.  Isobutylene is the preferred olefin.  Specified catalysts are aluminium chloride or bromide, boron trifluoride, titanium tetrafluoride and zirconium chloride in methyl or ethyl chloride, methylene or ethylene dichloride, chloroform, propyl chloride, and ethylidene fluoride.  A diluent such as liquid ethane, propane, butane, hexane, heptane, difluorodichloromethane, fluoro-trichloromethane, tetrafluorodichloroethane, carbon disulphide and carbon dioxide may be used.  The process may be by batch or continuous.  An inhibitor, e.g. phenyl-b -naphthylamine or 2, 6-ditertiarybutyl-4-methyl phenol, may be added before purification while the copolymer may be compounded and vulcanized in the usual manner.
Patent GB-693195-A (GB)
Title: Viewing apparatus for transparent pictures or the like
Inventor: CRIDLAND CHARLES ELLIOTT TAPSC
IPC: G02B27/02
Filed: 1951-03-12
Abstract: 693,195. Apparatus for viewing transparencies. HARD COATING, Ltd. Feb. 11, 1952 [March 12, 1951], No. 5880/51. Class 97 (i). The apparatus comprises a box a having a lid, an electric lamp housing c having an apertured and inclined side which may carry a diffusing sheet f to which is adapted to support a transparent photograph or the like to be viewed, and a pivotally mounted outwardly spring-urged lens holder h carrying a viewing lens i, the lamp housing and lens holder being contained in the box and the lens holder being adapted to be moved into a part of the box adjacent the lamp housing by the lid when this closes the box. As shown, the lid b is hinged to the box a and is held in the raised position by a strut m pivoted in the box. On disengaging the strut from the lid, the lens holder is turned down into the box by the lid engaging a roller k on the holder. The space e in the box may accommodate either a coil of cable connecting the lamp to an external source or a battery for the lamp, while a number of slides may be stored in the compartment n.
Patent GB-938366-A (GB)
Title: A process for the preparation of photoconductive layers for electrophotographic material
IPC: G03G5/05
Filed: 1960-02-19
Abstract: A xerographic plate is prepared by coating a conducting backing plate with an aqueous dispersion containing photo-conductive substances, water insoluble resins containing acid groups and having high electrical resistance and volatile bases, and then removing the bases from the coated support.  The water insoluble resins and the volatile bases form water soluble salts.  These salts are decomposed when heated and revert to water insoluble resins.  Drying temperatures of from 100 DEG  to 130 DEG C. may be necessary to drive off the volatile bases and if paper is used as the backing plate it may have to be reconditioned to a moisture content of from 4 to 7% to make it sufficiently conductive. Examples of water insoluble resins are maleic acid resins, phthalate resins, colophony conversion products also sandarac and drying oils modified by the introduction of acid groups.  The preferred volatile base is ammonia but other examples are morpholine, triethylamine piperidine, methylamine, dimethylamine propylamine, iso-butylamine, n-butylamine, ethyldiamine, allylamine and hydrazine.  Zinc oxide is referred to as the photo-conductive substance although other substances are referred to in prior art references.  Sensitizers may be used, the sodium salt of perylene-3,4,9,10-tetracarboxylic acid being mentioned. The backing material may be a metal plate instead of paper.
Patent GB-212908-A (GB)
IPC: F16H39/06
Filed: 1924-03-08
Abstract: 212,908. Lentz Patents, Ltd., (Assignees of Letatz, H.). March 13, 1023, [Convention date]. Hydraulic transmission of power. -Apparatus for the hydraulic transmission of power in locomotives comprises primary pumps c. c<1> driven by a prime mover a, and one or more auxiliary prime movers a<1>, the pump d driven by an auxiliary prime mover being of the same or approximately the .same capacity as the pump p c'. Specification 8384/15 is referred to.
Patent GB-507952-A (GB)
Title: Improvements in carriers for cycle and like handle-bars
IPC: B62J9/00
Filed: 1938-02-26
Abstract: 507,952. Luggage attachments. ROSS, J. E. Feb. 26, 1938, No. 6082. [Class 136 (i)] A device for suspending baskets, bags, &c. from cycle &c. handle-bars comprises a single piece of resilient metal rod A bent to form a central loop A<1> resiliently to embrace the handle-bar lug B, and side pieces which coil around the handle-bar C and extend downwards in front of the handle-bar and stem, the ends being bent to form hooks A<2> from which a basket &c. can be suspended. The hooks A<2> are held at the required distance apart by a spacing rod formed with end loops to engage recesses D in the sides of the hooks.
Patent GB-1090922-A (GB)
Title: Improvements in diving apparatus
IPC: B63C11/36
Filed: 1965-02-12
Abstract: 1,090,922. Diving - chambers. OCEAN SYSTEMS Inc. Feb. 12, 1965 [Feb. 13, 1964], No. 6096/65. Heading E1H. A diving structure comprising at least two spherical accommodation units 12, 14 each having separate pressure adjusting and maintaining means, a hatchway 16 interconnecting the units and communicating the interiors thereof via means for selectively sealing the hatchway, and hatchways 20, 22 communicating each unit independently with the exterior. The structure is provided with ballast tanks 36, a releasable weight in the form of a ring 48, and adjustable legs 56 having spherical feet 64 with means for ejecting fluid for assisting the freeing of the feet from the supporting surface. An arm 74 supports the incoming lines. A propeller 68 and rudder 70 are provided.
Patent GB-1245720-A (GB)
Title: Method and apparatus for forming hinge valves and applying same to bags
IPC: B31B160/10
Filed: 1970-02-09
Abstract: 1,245,720. Making valve bags. WINDMOLLER & HOLSCHER. 9 Feb., 1970 [14 Feb., 1969], No. 6100/70. Heading B5D. [Also in Division B8] A hinge valve comprising a valve tube 1 and a hinge leaf 2 is preformed and then applied to a partly-folded end closure of a bag 5. As shown in Fig. 4, the hinge valve is constructed from a web 10 for forming a plurality of leaf-hinges and a superimposed tubular web 11 for forming a plurality of valve tubes and formed from a sheet 12 by means of an adhesive applicator 14 and folding apparatus 13. The webs are conveyed by two pairs of feed rollers 8, 8<SP>1</SP> and 9, 9<SP>1</SP> between which they are perforated or scored at equal spacings by an apparatus 15 to form valve tubes and leaf-hinges of equal lengths, the web 11 is guided in a delay loop round rollers 17, 18 to offset it by half the tube length with respect to the web 10, and adhesive is applied to the leading half of each tube length before the webs are reunited by means of an applicator pipe 20 having ball valves (21) and pressed against the web and withdrawn by means of a lever 24 pivoted to a cam follower 25 co-operating with a. cam 27 driven in synchronism with the feed roller drive. The webs are then fed to a folding cylinder 29 having a peripheral speed equal to that of the end closure laying machine for the bags and greater than that of the feed' rollers, where the hinge valves are separated along the perforation or score lines and folding tongs. 30 co-operate with a cylinder 31 and a guide plate 33 to fold the leading half of the leaf-hinge against the trailing half. The folded over half of the hinge is then coated with adhesive by means 34 and applied to the end closure of a bag 5, as shown in Fig. 2. The ends 6, 6<SP>1</SP> of the bag are then folded over on lines 7, 7<SP>1</SP> to complete the closure.
Patent GB-248768-A (GB)
Title: Improvements in differential pressure gauges for measuring the flow of fluids in conduits
IPC: G01F1/37
Filed: 1926-03-05
Abstract: 248,768. B÷hme, M. March 9, 1925, [Convention date]. Liquid - level pressure-gauges. - A float on the liquid in one leg of a manometer connected to a Venturi apparatus is connected by a pivoted link to a spindle 5 on which are mounted a quadrant 6 and cam-lever 9 adjustably connected together by a screw 11. The quadrant engages a pinion 7 on the axis of which is an indicating pointer 8. The cam-lever 9 has a cam-groove 12 in which works a cam follower 13 on a recording arm 15 moving about a pivot 14. The movement of the float is thus converted into a movement of the recording arm having a straight-line law relation with the quantity of flow.
Patent GB-328371-A (GB)
Title: Improvements relating to displaying or advertising devices
IPC: A47F7/18
Filed: 1929-02-26
Abstract: 328,371. Crowther, C. Feb. 26, 1929. Cards for displaying.-In a tailor's cloth-displaying device of the type wherein a transparent representation of a human figure is placed over the specimen of cloth, an opaque sheet 3 (indicated by the horizontal shading) with the outline of the figure 2 cut out is mounted in a frame 4 behind a flexible transparent sheet 1 on which the outlines of a suit are printed. Details of the face, tie, shoes, &c. are printed either on the sheet 1 or on the backing 3, which may be suitably coloured. Reference has been directed by the Comptroller to Specification 18147/09.
Patent GB-867494-A (GB)
Title: Improvements relating to electrical temperature recording apparatus for molten metals or the like
Inventor: WILLIAMS HIRAM HENRY
IPC: G08B21/00
Filed: 1959-02-25
Abstract: 867,494. Temperature measuring apparatus. WILLIAMS Ltd., HIRAM H. Feb. 25, 1960 [Feb. 25, 1959], No. 6445/59. Class 40 (1). In a system for recording the temperature of variable quantities of molten metal or the like contained e.g. in a crucible, a receptacle 8, which is a sheath of refractory material, e.g. plumbago containing a thermocouple 10 is mounted on a vertical depending arm 7 which is pivotally mounted on a lever 6 which has a counterweight 11 adjusted so that the receptacle floats on the liquid surface 9. Lever 6 is mounted on a vertical support 3 which is attached to the casing 4 which contains the crucible 5. For greater stability the lever 12 may be pivotally attached to the support 3 and by a pivoted connection 13 in a slot 14 to the depending arm which thereby can remain vertical.
Patent GB-1377545-A (GB)
Title: Locking slider for a sliding clasp fastener
IPC: A44B19/30
Filed: 1972-02-11
Abstract: 1377545 Automatically locking slider YOSHIDA KOGYO KK 11 Feb 1972 [15 Feb 1971] 6571/72 Heading E2S An automatically locking slider in which lateral motion of the locking means is prevented comprises a support member 21 on the slider body 11 with a head 27 and shoulders 28, adjacent to it a recess 24 for holding one end 33 of a U-shaped locking member 25, an opposed similar support member 22, and adjacent to it an aperture 26 in the slider body 11 through which can project a locking finger 36 on the other end of the locking member 25. The locking member 25 has a neck portion 35 which projects through a rectangular aperture in a leaf spring 23, and it bears via shoulders 34 on side portions 29 of the leaf spring 23. The latter has opposite forked prongs which are bent upwards to engage the iner wall of a yoke 17, and which straddle the heads 27 of the opposed support members 21 and 22. The yoke 17, in the form of a hollow cap, is anchored to recesses 32 at the opposite ends of the slider body 11. The locking finger 36 is held in engagement under the action of the leaf spring 23 until pivoting of the pull tab 20 acts on the locking member 25 to withdraw the locking finger 36 and bend the leaf spring 23. During this motion the locking member 25 is contained not to move laterally. In alternative embodiments (Figures 6, 7, and 8, not shown) the locking member 25 has the rectangular recess and the leaf spring the associated neck portion, or the leaf spring 23 carries at each end a single prong which engages in a recess in the associated support member 21 or 22, or the support members are smooth and the leaf spring 23 is restrained from lateral movement by engagement with the side walls of the yoke 17.
Patent GB-272289-A (GB)
Title: Improvements in and relating to control equipment for alternating current power systems
IPC: G01R19/22
Filed: 1926-03-09
Abstract: 272,289. British Thomson-Houston Co., Ltd., and Clough, F. H. March 9, 1926. Current meters; power meters.- The current or power at any point in an alternating current power system is indicated at a central control station by means of a current transformer having an air-gap 3 in its iron core 4, a rectifier for the current induced in the secondary winding 2, and pilot leads 5 for transmitting the rectified current to a moving-coil direct-current indicating instrument 6 at the control station. The rectifier may be of the kind known under the Registered Trade Mark " Tungar " or may consist of vacuum valves 7, Fig. 1, arranged in parallel, in which case the instrument 6 indicates the current at the selected point. In a modification, Fig. 2, the rectifier consists of a commutator 8 driven by a synchronous motor 9 which derives its power from a potential transformer. In this case, since the position of the commutator is definitely related to the phase of the voltage of the system, the resulting rectified current has a value depending on the phase of the current, enabling the instrument 6 to indicate power.
Patent GB-534770-A (GB)
Title: Improved rear lamp
IPC: G02B5/12
Filed: 1939-02-28
Abstract: 534,770. Cycle rear lamps. RORBYE, C. E., and RORBYE, O. Feb. 28, 1939, No. 6581. Convention date, Feb. 28, 1938. [Classes 39 (ii), 75 (ii) and 75 (iv)] [Also in Group XVIII] A rear lamp supported in a casing 2 on the rear mudguard of a bicycle comprises a battery 4 mounted in a resilient holder 3 and fitted with a bulb 11 arranged behind a reflecting glass 7 secured in a tubular holder 5, the grooved face of the glass 7 being protected from dust and moisture by a glass or other transparent plate 8 sealed by rubber packing 9. Specification 467,343 is referred to.
Patent GB-302090-A (GB)
Title: Improvements in or relating to machines for developing or generating intersections of cylinders
IPC: B23K7/00
Filed: 1928-03-02
Abstract: 302,090. Fantz, F. C. March 2, 1928. Reproducing mechanism.-A machine for developing or generating the intersections of cylinders such as pipes or nozzles comprises a cutting device controlled by means so as to describe a predetermined movement without first developing a fixed means such as cams or templets or laying out the curve on a drafting board and transferring it by a centre-punched line to the article. A cutting torch &c. 11 is carried by a rod 10 passing through radially adjustable bearings 8, 9 in a rotating drum 1, which may be longitudinally adjustable along a track 2. The rod is connected to a universal joint 14 slidably mounted on the cross member 15 of a U-shaped member 16 radially adjustable in and secured by studs to bearings 18 pivoted at 31 to a pair of standards 20. The rod 10 is set to the radius of the pipe 13 to be cut and the member 16 is set to the radius of the header to which the pipe is to be connected, whereupon on rotation of the drum the torch will be moved longitudinally by the member 16 to cut the pipe to the curve P. Adjustment to suit the diameter of the pipes is effected by adjustment of the bearings 8, 9, adjustment of the radius of the member 16. and adjustment of the supports 20 by screws 30. In cutting a pipe of diameter equal to that of the header, the radius of the member 16 is made slightly larger than that of the pipe so as to avoid dead centres. In order to cut a pipe so that it may be attached tangentially to the header the support 20 is raised until the pivots 31 are offset a distance corresponding to the distance the cross pipe is out of centre. In order that a pipe may be cut so that it may be joined to the header at an acute angle the supports 20 may be mounted on an angularly adjustable base provided with graduations. In order to out a corresponding hole in the header the member 16 is arranged in the dotted position before collecting to the universal joint, the axis of the header is arranged horizontally at right angles to that of the drum and the torch is arranged parallel with the axis of the drum. In cutting bevelled ends on pipes so that they may be joined end to end the member 16 is replaced by a rod 36 secured to the end 35 of an axle 34 rotatably mounted in a bearing in the support 33 in the same plane as the centre of the drum. The universal joint 14 is secured to the rod 36 at a radius corresponding to that of the pipe and the support 33 is mounted on an angular adjustable base 22 having an axis in line with the part 35. The gas supply pipes 37 are wound round the drum and suspended by a counterweight from a sheave 38.