baber/WOPTO huggingface dataset:
Patent GB-465958-A (GB)
Title: Improvements in or relating to twist grip controls for bowden transmission mechanism
IPC: F16C1/18
Filed: 1935-11-18
Abstract: 465,958. Handle-bar control mechanism. AMAL, Ltd., BINKS, C. L., and TISDELL, T. A. Nov. 18, 1935, No. 31915. [Class 136 (i)] Relates to twist-grip controls of the kind in which, during actuation, the inner member of a Bowden mechanism, or other flexible member, is wound around at least part of the periphery of a sleeve or drum. A casing 2 fixed to the handle-bar 1 by screws 3 is counterbored at 4 to receive the end 5 of a sleeve 6 with rubber grip 17. A part 9 of the end of the sleeve is bent back to form a connection for a nipple 10 on the inner member 11, the abutment 7 for the outer member 8 being housed in a projection of the casing. A screwed pin 13 in a boss 12 of casing 2 enters a hole 16 in the handle-bar and passes through a slot 15 in sleeve 6. Frictional resistance to movement of sleeve 6 is provided by a spring 18 which can be adjusted by the screw 13.
Patent GB-445524-A (GB)
Title: New or improved packing for stuffing-boxes and the like
IPC: F16J15/22
Filed: 1935-11-19
Abstract: 445,524. Stuffing - box packing. STRID, A. A., Box 80, Valdemarsvik, Sweden. Nov. 19, 1935, No. 31997. [Class 122 (v)] Packing for stuffing-boxes, &c. is made from shavings or chips from the flesh-side of chrome-tanned leather. The shavings or chips are of 1 m.m. maximum thickness, and are preferably impregnated with clove-oil and graphite. The packing may be placed directly in the box, or first enclosed in an outer wrapping made of tubular cotton, from which the packing material is pressed into the box.
Patent GB-991278-A (GB)
Title: Improvements in cylindrical machine components, such as a bolt, stud or shaft and the manufacture thereof
IPC: B21K25/00
Filed: 1963-08-14
Abstract: 991,278. Studs. ROBERT BOSCH G.m.b.H. Aug. 14, 1963 [Aug. 17, 1962], No. 32053/63. Heading F2H. [Also in Division B3] A flanged stud comprises a stud having two different diameters separated by a groove and a collar which is passed over the smaller diameter end of the stud up to a shoulder defined by the groove and the larger diameter of the stud, the collar then being pressed into the groove by radially directed forces.
Patent GB-286396-A (GB)
Title: Improvements in or relating to the process for the production of waterproof impregnating, finishing and colour coatings
IPC: C14C11/00
Filed: 1926-12-20
Abstract: 286,396. Jeremias, A. Dec. 20, 1926. Rubber and like gums, treating with.-A process for the production of waterproof coatings for impregnating, finishing, and colouring leather, consists in converting rubber, collodion or other material insoluble in water into an emulsion, applying a coating thereof, and then converting the material into insoluble form by means of a fixing agent containing a metallic salt such as alum, aluminium acetate, or chrome alum. Colouring matter may be mixed with the coating material before application, or may be previously applied to the leather &c. For example 100 parts of lac varnish are mixed with 25 parts of Turkeyred oil until a clear homogeneous material is obtained which is soluble in water. 120 parts of colouring matter are added, and the solution diluted with three times its volume of water. Leather is treated several times with this solution by brushing or spraying. The coating is then fixed by means of a solution of alum. In another example 80 parts of collodion and 20 parts of gum or rubber solution are mixed with 20 parts of oleic acid and saponified with 8 parts of a 50 per cent solution of caustic potash, the solution being used as in the first example. In a third example 100 parts of rubber solution are mixed with 25 parts of oleic acid and saponified with the 10 parts of a 50 per cent solution of caustic soda. 100 parts of mineral colouring marter are added and the whole finely pulverized in a colour grinding mill. This solution diluted with ten times its weight of water is used to coat leather, which is then treated with aluminium acetate. Leather may be treated with any suitable colour finish in known manner, after which an emulsion of rubber or varnish prepared as above described is applied and fixed as before. A concentrated rubber emulsion is used to impregnate leather, and fixed by means of weak alum solution. In a further example, 70 parts of acetylcellulose solution and 30 parts of rubber solution emulsified as before described are mixed and diluted with two to five times the quantity of water. Starch, flour or other gelatinous material may be added, and the material to be treated is coated as before.
Patent GB-1157630-A (GB)
Title: Polymer Dispersions
Inventor: THOMPSON MORICE WILLIAM
IPC: C08F2/06
Filed: 1965-07-29
Abstract: 1,157,630. Polymer dispersions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 20 July, 1966 [29 July, 1965], No. 32492/65. Headings C3G and C3P. A fluid dispersion of polymer particles in an organic liquid is prepared by polymerization of ethylenically unsaturated monomer in the liquid, in which polymerization, subsequent to an initial seed nucleation stage, there is at least one re-nucleation stage and continuation of the polymerization so that polymer particles of at least two different sizes are grown to produce a dispersion containing more than 60% by volume of disperse polymer, smaller size particles occupying the interstices between larger size particles. The polymer particles are stabilized in the liquid by a stabilizer comprising an anchoring component which is associated with the surface of the particles and a pendent chain-like component which is solvated by the organic liquid. In Examples 1 to 3, methyl methacrylate is polymerized in a hydrocarbon medium containing a stabilizer precursor comprising a lauryl methacrylate-glycidyl methacrylate copolymer reacted with methacrylic acid. The dispersion of Example 2 is dissolved in a toluene/acetone mixture. The dispersion in Example 3 is converted to a plastisol by replacing the hydrocarbon medium with alphamethyl cyclohexanyl phthalate. In Example 4, 2-ethoxyethyl methacrylate is included in the reaction mixture. A preformed stabilizer comprising a methyl methacrylate-methacrylio acid copolymer having side chains consisting of the self-ester of 12-hydroxystearic acid is employed in Example 5 in the production of a dispersion of polyvinyl acetate.
Patent GB-373070-A (GB)
Title: An electric rotary switch for detecting a failing sparking plug
IPC: F02P17/00
Filed: 1931-11-25
Abstract: 373,070. Testing ignition. HAUSER, M., 35, Bl³mlisalpstrasse, Zurich. Switzerland. Nov. 25, 1931, No. 32609. Convention date, Nov. 26, 1930. [Class 7 (iv).] A defective sparking- plug is identified by means of a rotary switch which successively earths the plugs and carries also a gas-filled tube. The handle 5 enables a contact 4 on a disc 6 to be brought into engagement with one of the fixed contacts 2 connected to the plugs. Contact 4 is also connected by leads 9, 10 to the tube 7 and contact 11. An earth connection, short circuiting the sparking-plug, may be made by pressing the button 14, thus bringing the conductive collar 17 against the contact 11 and the stem 13 against the earthed terminal 19. Numerical indications corresponding to the plugs appear through an opening 24 in the handle 5. Stepby-step movement of the disc 6 is ensured by the engagement of a spring with a polygonal portion of the hub of the disc.
Patent GB-941329-A (GB)
Title: Crop-handling apparatus
Inventor: RIMES LESLIE
IPC: A01D43/00
Filed: 1960-09-23
Abstract: 941,329. Reaping machines. LESLIE RIMES Ltd. Dec. 22, 1961 [Sept. 23, 1960], No. 32759/60. Heading A1F. [Also in Division F4] A reaping machine comprises a cutter 10 and an endless conveyer 11 which feeds cut crop to a drier 12 consisting of three perforated plates 33, 34 and 35 through which air heated by a furnace 41 is blown and along which the crop is moved by scrapers 37a operated by chains 36. The cutter comprises two cylindrical drums 15 pivotally supported from the machine frame by a plate 19 which is adjustable by means of a screw 21 to alter the cutter height but is, however, free to move vertically upwards if an obstruction is encountered thereafter returning to the set position. The conveyer 11 consists of three sections the top one of which can be adjusted for height relative to the drier and the bottom one of which can also be adjusted for height relative to the cutter By modifying the conveyer 11, grain may be treated in the machine and then passed by the auger 40 to a cyclone and bagging apparatus. The machine may be self-propelled or trailed.
Patent GB-661890-A (GB)
Title: Apparatus for measuring or using for control purposes, the peak voltage of short duration voltage peaks or pulses
IPC: H04N5/16
Filed: 1948-12-17
Abstract: 661,890. Peak voltage measuring. PYE, Ltd., and LAX, L. Dec. 15, 1949 [Dec. 17, 1948], No. 32767/48. Class 37. [Also in Group XL (b)] An arrangement for measuring of using, for control purposes, the peak voltage of short duration pulses comprises a D.C. restoring circuit consisting of a rectifier the cathode of which is maintained at a predetermined potential and connected, through a leakage resistor, to the anode, to which the waveform to be D.C. restored is fed through a condenser, and one or more additional rectifiers are provided having their cathodes connected to the cathode of the first rectifier and their anodes interconnected by resistors to the anode of the first rectifier and also connected through condensers to the source of the waveform to be D.C. restored. This arrangement provides a circuit which may be employed for D.C. restoration (or for the measurement of very short voltage peaks by incorporating it in the peak-voltmeter described in Specification 656,002) and which has an initially flat decay curve so that the condition established by a short peak (e.g. a short " black " peak in a television waveform) is maintained during the interval between successive peaks. In the embodiment described with reference to the (Prov.) drawing the wave-form, the peaks of which are to be measured or with reference to which the D.C. level is to be restored, is fed, in the negative sense, from a cathode follower stage VI to a D.C. restoring circuit comprising C1, R4 and the first section of valve V2 with which is associated three further rectifying paths comprising the second section of V2 and the two sections of V3, the cathodes of all of which are connected to the cathode of the first sections of V2 and the anodes of which are interconnected by resistors R1, R2, R3 and connected to the output of V1 via C2, C3, C4. With this arrangement the discharge through the leakage resistor R4 is prolonged, since the discharge of condensers C2, C3, C4 is progressively delayed, so that the potential to which the waveform is restored (i.e. that of the common cathodes which is determined by R5, R6) is maintained for a considerable period (e.g. in the case of a television system for at least one complete frame even though that frame may have only a very small black portion). To prevent spurious operation during television line re-trace periods valves V2, V3 are cut-off by means of negative blanking pulses derived from the screen-grid of V4 to the control grid of which positive blanking pulses from the television transmitter waveform generator are applied. The D.C. restored waveform is then amplified in V5 and fed to the output terminal C via a diode V6, the cathode potential of which is maintained at a value slightly below the black level potential. The potential of the cathode may be varied by varying the bias on the control grid of V7 by means of potentiometer P.
Patent GB-1503051-A (GB)
Title: Secure television transmission system
IPC: H04N7/169
Filed: 1976-08-06
Abstract: 1503051 Secret television WESTINGHOUSE ELECTRIC CORP 6 Aug 1976 [8 Aug 1975] 32820/76 Heading H4F Secret television transmission is effected by cyclically shifting with respect to time at least two segments of the video portion of each line of the video signal with the size of the segments selected randomly. Specifically each scan line is digitized and the resulting digital numbers sequentially stored in a random access digital memory from which they are read out beginning with an address which is randomly selected while the next line is stored in a second memory. The point within each stored data line at which read out begins is controlled by a random number generator, and to set the starting point of a matching random number generator in the receiver to thereby accurately restore the television line signals a binary sync code is transmitted during each even field vertical retrace period. To eliminate transient errors at the receiver twelve digital numbers are repeated at both the beginning and end of the shifted line during transmission. A cue pulse may be added just prior to the beginning of the active line of each shifted line which is used in the receiver instead of the pore sync pulse to phase lock the clock generator. For a colour television signal the clock generator is phase locked to the colour subcarrier.
Patent GB-478849-A (GB)
Title: Improvements in or relating to radio and other high frequency transmitters
IPC: H03F3/54
Filed: 1936-11-30
Abstract: 478,849. Valve circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Nov. 30, 1936, No. 32833. Convention date, Nov. 30, 1935. [Class 40 (v)] In an ultra-high-frequency power amplifier in which the capacities of the electrodes are balanced with respect to earth by a neutralizing circuit, which may be a second valve, the capacities in question are reduced by connecting the anode of the valve directly or through a large condenser to the corresponding point in the neutralizing circuit, the cathode lead is formed as a tubular conductor coaxial with the grid lead, and the aerial feeder is matched in a special manner. This arrangement enables valves having external anodes to be used. In a known circuit, Fig. 1a, C1, C2, C3 represent the inter-electrode capacities of the valve R, which is driven from a source of oscillations connected at 1, 2, while C4 represents the capacity of the anode with respect to earth. The dimensions of the tuning inductances LI, L2 for a given frequency are limited by these capacities, and according to the invention the latter are reduced by connecting the anode of the vaive R either directly or through a large condenser C, Fig. 3, to the anode of the capacitycompensating valve N or to the corresponding point in the equivalent condenser network. At the same time the grid and cathode leads gl, cl are coaxially arranged, with the grid lead inside, in order that the earth-capacity effects of these leads may be neutralized. The circuit is tuned by adjusting the length of the part containing the grid lead, which may be coiled or may have a trombone slide. In the case of the amplifier shown in Fig. 3, the cathode-heating and grid potentials are applied at a symmetrically situated point P. Insertion of the condenser C lowers the series capacity of the oscillatory circuits ; C may have a large capacity if the power factor of the load circuit is kept down. For this latter purpose the surge impedance of the aerial feeder is so arranged that the impedance facing left from a point a distant #/4 or (2n+1)#/4 from the transmitter is matched to the surge impedance facing right at that point. The actual impedance W1 facing left is greater than that W2 facing right, and the impedance W2 can be adjusted, for instance, by varying the distance between a pair of conductors.
Patent GB-1211317-A (GB)
Title: Centrifugal governor for a multiple-speed hub
IPC: B62M11/00
Filed: 1969-06-30
Abstract: 1,211,317. Change-speed gear control; ratchet clutches. FICHTEL & SACHS AG. 30 June, 1969 [4 July, 1968], No. 32919/69. Heading F2C and F2D. In a conventional arrangement (not shown) of a two-speed (step-up and direct drive) bicycle hub comprising planets on an input carrier meshing a fixed sun and a ring gear, and 1st and 2nd pawl and ratchet one-way clutches (only the 2nd pawl/ratchet clutch 2, 12 being shown) between the planet carrier and ring gear respectively and the hub shell (all not shown), an automatic centrifugally controlled cam disc 5 retracts the ring pawls 2 for direct drive through the carrier pawls (not shown), the ring idling, or releases the ring pawls 2 for radially outward movement by a pawl spring 16 into engagement with the ratchet 12 for step-up gear through the ring, the carrier pawls ratcheting. As shown, the ring gear is connected via a sleeve 7 to a pawl carrier 1 the pawls 2 of which axially extend into cam apertures 6 in the control disc 5, spring retracted centrifugal flyweights 4, pivoted on pawl carrier pins 3, being connected via a pin and slot connection 10, 11 to the control disc 5 whereby outward movement of the flyweights 4, at increased carrier speed, rotates the control disc 5 relative to the carrier to outwardly release the pawls 2 via each cam aperture surface 17 for engagement with the ratchet 12 for stepup ratio, a slot 9 in the disc 5 permitting move. ment of the disc relative to the pivot pins 3 of the flyweights 4 which as shown have meshing gear rims 14, or in Fig. 6 (not shown) have connecting links (18a, 18b, 18c) from the carrier 1, to ensure controlled equal radial pivotal movement of the flyweights and prevent undesirable movement of one or other flyweight due to road shocks on uneven ground. Fig. 4 and Figs. 7 to 10 (all not shown) illustrate alternative camming embodiments on modified forms of the control disc 5.
Patent GB-1440074-A (GB)
Title: Baby bath
IPC: A47K3/024
Filed: 1972-07-14
Abstract: 1440074 Baby's baths RECKITT & COLMAN PRODUCTS Ltd 16 July 1973 [14 July 1972] 32944/72 Heading A4N A plastics one-piece moulded baby's bath comprises a substantially rectangular body 1 having a marginal stiffening flange 3 and a receptacle 3' formed by a base of gradually increasing depth from adjacent one end of the body 1 to a maximum depth from where it curves upwardly and rises to a height above the body 1, sides which merge into the upwardly curved portion 4 which, with the sides, then turns over sharply and merges into the body 1 which extends beyond the curved portion 4, a portion 6 formed outside the base of the receptacle 3' and having a flat base. The bath is preferably made from a resin bonded fibre glass.
Patent GB-894538-A (GB)
Title: Improvements in or relating to machines for loading needle or like bearings into cup-like members
Inventor: PALMER BERTRAM JOSEPH
IPC: F16C43/04
Filed: 1959-09-29
Abstract: 894,538. Assembling roller bearings. B.R.D. CO. Ltd. Oct. 24, 1960 [Sept. 29, 1959], No. 32960/59. Class 83 (2). A machine for assembling needle roller bearings comprises a loading mandrel 21 having angularly-spaced roller receiving grooves 23 in the periphery thereof, feed means for feeding rollers to a loading station adjacent the mandrel, means for rotating the mandrel to permit rollers being; fed into the grooves as they pass the loading station, means for preventing the rollers from falling out of the grooves during the loading operation, a sleeve 27 mounted adjacent one end of the mandrel and adapted to abut one end of the rollers in said grooves, means for supporting a cup-like member in register with said mandrel, means for advancing said mandrel and said sleeve into the cup-like member and means for withdrawing first the mandrel and then the sleeve. The mandrel 21 which receives the rollers from a shoot 14, that is kept full by a hopper 10, has the same number of grooves as the number of rollers which are to be loaded into the bearing cup, and is rotated by a rack 26 which engages a tooth portion of the mandrel shaft 22. The rack is driven by a double-acting cylinder 43 and the stroke is sufficient to cause the shaft to make one complete revolution. The rollers are prevented from falling out of the grooves by the wall of the bore 20. Surrounding the mandrel shaft 22 is the sleeve 27 which has an inside diameter such that it passes easily over the mandrel 21 but will push the rollers out of the grooves. The mandrel shaft is moved axially by a cross-head 40 actuated by hydraulic means 41, 42. The cross-head also moves a nozzle 29 which injects grease into each bearing cup immediately before it is filled with rollers. The bearing cups are pushed along a path 33 by a reciprocating piston 34. The path 33 includes a spring-loaded bar which is notched to position the bearing cups at the loading station 28 and 32. In operation, the mandrel 21 and the sleeve 27 advance together to feed rollers into a bearing cup at the loading station 32, and the mandrel is withdrawn while the sleeve is held stationary, by a latch so that the rollers are displaced from the grooves in the mandrel into the cup where they are retained by the grease.
Patent GB-973051-A (GB)
Title: Improvements relating to electron microscope specimen holders
Inventor: LUCAS JEFFREY HARVEY
IPC: H01J37/20
Filed: 1962-08-28
Abstract: 973,051. Electron microscopes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 7, 1963 [Aug. 28, 1962], No. 33010/62. Heading H1D. A specimen holder for use in an electron microscope comprises an electrically conducting support 4 for the specimen and two conductors 22, 23 insulated from each other and closely twisted together in spiral form and connected to two spaced apart points on support 4. Current is passed through the conductors and support to heat it, the conductors being twisted together to minimize the electric and magnetic fields which may deflect the electron beam. The holder for support 4 comprises a body 1 having a central aperture for the electron beam and a bore 19 for the conductors closed at the top by a terminal plate 21 carrying terminals 24, 25 (not shown), and with two jaws 2, 3 secured to its lower end by studs 16 fitting into recesses in body 1 in which they are secured by insulating adhesive, the jaws 2, 3 being spaced by an airgap and being insulated from body 1 by insulator 12. The conductors 22, 23 are connected to these jaws. Two clamps 5, 6 held together by a clamping ring 7 and insulated from each other and from the clamping ring 7 by an insulating bushing 18, fit over the lower end of the jaws 2, 3 holding the support 4 against the lower end of the jaws by lugs 8, 9.
Patent GB-331835-A (GB)
Abstract: 331,835. Ollerenshaw, R. E. April 8, 1929. Road signals. - A multiple circuit switching device particularly applicable for use in connection with traffic control signalling apparatus and arranged to energize a series of circuits in a predetermined sequence and in recurrent cycles, is provided with means for varying reciprocally the lengths of the respective contact paths so as to vary the relative proportions of the cycle allocated to the energization of the several circuits. In the form shown in the Figure the rotating contact arm is adapted to contact successively with a series of segmental contacts 5. The contacts 5 are electrically connected in groups by springs 7, 8, 9 anchored at one end and coupled at the other end to adjusting arms 12, 13, 14 rotatably mounted on a spindle 15. 'The springs are retained in an annular channel formed in the contacts by cover plates 11, and may themselves function as contact members. In a modification the segments themselves rotate in contact with fixed and movable brushes.