baber/WOPTO huggingface dataset:
Patent GB-130454-A (GB)
Title: Improvements in Automatic Small-arms.
Inventor: CHEVALLIER ARNOLD LOUIS
IPC: F41A3/82
Filed: 1918-07-30
Abstract: 130,454. Chevallier, A. L. July 30, 1918. Breech actions, sliding breech-block. - Relates to fixed-barrel automatic small-arms in which the bolt return-spring remains inoperative when the gun is manually operated, and consists mainly in housing the return spring in the sleeve slidable in the receiver and adapted to be so connected to the breech-bolt when the gun is manually operated that the sleeve, bolt, and return-spring may be retracted as a single unit without compression of the spring. The invention also comprises a hollow firing-pin axially mounted in the breech-bolt, adapted to serve during automatic action as the ejector, and enclosing a sleeve adapted to serve as the forward abutment of the return spring. The invention is shown in Fig. 3 with the breech-bolt retracted during automatic action. The recoil spring c is enclosed between a nut c forming the rear closure of the receiver a and a sleeve n closed at its forward end and capable of sliding in the hollow firing-pin t. The breech-bolt b surrounds the firing-pin and is rigidly connected to sleeve n by a transverse cotter-pin s. The perfurations u in the firing-pin through which this pin passes are elongated to permit the firing-strode. The firing- pin is adapted to be pushed rearwardly by the spring v so that normally it protrudes slightly from the rear of the bolt. When the parts reach their rearward position during recoil, the rear end of the firing-pin strikes the abutment nut e, and the firing-pin is driven forward to eject the spent cartridges. The nut e is screwed into a sleeve d slidable on guides i in the receiver a, and carries lugs h, Fig. 6, adapted normally to lock the sleeve to the receiver. Rotation of the nut by operating the hand-lever g, Fig. 4, unlocks the nut e from the receiver, and simultaneously causes a claw on the forward end of a lever 3 carried by the nut c to engage a projection j on the breech-bolt. The sleeve d, return spring, bolt. and enclosed parts may then be retracted as a single unit without compressing the spring, to permit normal loading, but the firing-pin does not in this case eject the spent cartridge.
Patent GB-1316509-A (GB)
Title: Photographic apparatus
IPC: G03B17/52
Filed: 1970-11-23
Abstract: 1316509 Cameras POLAROID CORP 23 Nov 1970 [ 2 Jan 1970 1 May 1970 (2) 11 May 1970] 12494/71 Divided out of 1316506 Heading G2A  The drawings are identical with Figs.1-11 (not shown) of the parent Specification 1316506, and the description relating to these Figs. is also identical. The claims are concerned with the construction for preventing the lever 128 from being pivoted to break the magnetic coupling between the lower part 138 and the upper part 176 (to achieve the "open" position of Fig.1, (not shown), so that a new film assemblage can be inserted), i.e. by means of the detent 146, until part 176 has been moved away from part 138 sufficiently for lever 128 to be clear of detent 146 (i.e. from the Fig. 5 position to the Fig.6 position). By this means the mirror 162 ( which reflects light coming through the objective on to the photosensitive film) is moved to such a position that it is less likely to be struck accidentally by the film assemblage being inserted into the camera. (For Figures see next page)
Patent GB-685650-A (GB)
Title: Air-cooled internal combustion engine
IPC: F01P5/02
Filed: 1950-05-18
Abstract: 685,650. Cooling cylinders; reservoirs; fuel injection pumps, KLOCKNER - HUMBOLDT - DEUTZ, AKT.-GES. May 18, 1950 [Dec. 30, 1948], No. 12529/50. Classes 7 (ii) and 7 (iii). An axial flow ducted blower 13, Fig. 1, mounted at one end of an engine, in line with the base or bases of the cylinder or cylinders 1 thereof and vertically above the crankshaft 8, from which it is driven as by spur gearing 17... 19, delivers air to a chamber 20, Fig. 2, provided adjacent the cylinder base of bases and communicating with cylinder cooling ducts 21. Stationary guide vanes 15 are provided in the blower ducting. The engine may use the two- or four-stroke cycle and run on carburetted or gaseous fuel but, as shown, is diesel-operated with a fuel injection pump (not shown) situated at the same end of the engine as the blower 13 and driven by cams on a crankshaft extension 10 also provided with a governor 11. A fuel tank 22 is positioned as shown. The cylinder heads 3 and barrels 1 are provided with longitudinal fins 4, 5. The invention may be applied to engines with transversely finned cylinders, when the chamber 20 is preferably situated to one side of the cylinder bases. Engines according to the invention may be used in tractors or other motor vehicles, or in stationary installations.
Patent GB-1496705-A (GB)
Title: Direction finding arrangement
IPC: G01S1/76
Filed: 1975-03-26
Abstract: 1496705 Acoustic direction finding apparatus STANDARD TELEPHONES AND CABLES Ltd 18 March 1976 [26 March 1975] 12580/75 Heading G1G In direction finding, a moving sound source is simulated by successively exciting at the same frequency a rectilinear array of loud-speakers, the bearing of a receiver being found from the apparent Doppler shift. A reference frequency which may be the same as the array frequency or offset to define a required guidance angle may be transmitted beforehand, simultaneously, or in time-multiplex with the array transmissions. Adjacent loud-speakers may be a half wavelength apart or less, each loudspeaker may be energized for 1, 4 or 5 cycles. The array frequency may be 1kHz or 1.5kHz with an offset reference frequency of 1.7kHz.
Patent GB-1368891-A (GB)
Title: Electrolysis cells
IPC: C25C3/08
Filed: 1972-03-17
Abstract: 1368891 Electrolytic cell ALUMINIUM CO of AMERICA 17 March 1972 [18 March 1971] 12665/72 Heading C7B An electrolytic cell for producing molten metal, such as Al or Mg, is provided with elongated magnetic flux conductor members so arranged as to reduce or eliminate within the cell a component of a magnetic field arising from current connecting conductors which are external to the cell without substantially affecting the other magnetic field components within the cell. Thereby, circulation of molten metal within the cell is reduced or stopped. As shown in top view, a cell 12 for producing molten Al from a fused salt bath is electrically connected in series with similar adjacent cells 10 and 14. Cell 12 comprises a steel shell 16, insulating lining 20 and carbon liner 18. It is provided with anodes 25 (shown only for adjacent cell 14) and iron or steel current collector bars 30 embedded in the liner 18. Current collector bars 30 are connected externally of the cell by bus conductors 31, 32 to main cathode buses 33, 34 which connect with main anode buses 28, 29 of the next cell. In use of the cell, the current connections give rise to a magnetic field. A vertical component thereof within the cell is reduced or eliminated by means of rows of magnetic flux conductor members 36, 37, 38, 39, 41 and 42. These members are elongated, extend vertically and are magnetically spaced. They may be of scrap iron or steel. The magnetic flux conductors 37 may be attached to the cell shell 16 by insulating adhesive or by tack welds. Any oxide on the flux conductors serves as magnetic spacing. The flux conductors 38, 39, 41 and 42 are embedded in the liner 18.
Patent GB-1023514-A (GB)
Title: Improvements in or relating to friction clutch operating mechanism
Inventor: DAVIDSON JOHN BRUCE
IPC: F16D27/08
Filed: 1963-09-30
Abstract: 1,023,514. Friction clutches. COVENTRY GAUGE TOOL CO. Ltd. Dec. 30, 1964 [Sept. 30, 1963], No. 12719/63. Heading F2C. The discs 16 of a friction clutch are engaged by the rearward movement of a collar 10 provided with cam surfaces 5 which force thrust rollers 2 radially inwards between tapered surfaces 3, 4 on opposed rings 8, 18 as described in Specification 1022444, the tapered end portion 9 of the collar 10 serving as an armature for an actuating solenoid 6. Outward movement of the member 9 is limited by a stop ring 12. As shown, the solenoid 6 is of the rotating type and is supplied with current through a slip ring 14 carried by the stop ring 12, but it may be of the stationary type with the slip ring omitted. Disengagement of the clutch is assisted by the centrifugal effect of the rollers 2.
Patent GB-557160-A (GB)
Title: Improvements in transmission joints
IPC: F16C5/00
Filed: 1941-10-02
Abstract: 557,160. Hinges. PHILLIPS & POWIS AIRCRAFT, Ltd., and WILD, R. O. Oct. 2, 1941, No. 12747. [Class 65 (ii)] [Also in Group XXIV] One of the shafts 3 to be connected terminates in a forked end the prongs 4, 5 of which end in lugs 6, 7 through diametrically opposite holes in which are screw-threaded plugs 8, 9 the inner ends of which are spherically concave to engage spherically convex surfaces on a bush 10 fitted in an apertured end lug 11 of the other shaft 13. If the joint is to take substantial end thrust, a bolt 14 may be inserted through the plugs 8, 9 and bush 10, the bore in the latter being flared from its centre towards its ends to provide for the requisite angular movement. In a modification the ends of the plugs are conical to fit correspondingly coned recesses in the inner bush. Specifications 6408/10, [Class 65 (ii)], 16513/10, [Class 80 (ii)], and 461,005 are referred to. According to the Provisional Specification, the invention affords a satisfactory form of bearing between two shafts.
Patent GB-199215-A (GB)
Title: Apparatus for use in playing a game
IPC: A63B63/00
Filed: 1922-06-17
Abstract: 199,215. McMurtrie, N. S. June 17, 1922. Outdoor games.-Apparatus for use in playing a game comprises a net 1 presenting over its entire area pockets or cells and anchored at its corners only to poles 2 and pegs 3. The pockets have different scoring values, and in playing a game, golf balls are played into the pockets and score according to rule. Specifications 13201/87, 5664/88, 6943/94, 21909/06, 27520/11, and 133,451 are referred to.
Patent GB-972899-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D13/12
Filed: 1963-04-01
Abstract: 972,899. Mechanical seals. ROY E. ROTH CO. April 1, 1963 [April 5, 1962], No. 12858/63. Heading F2B. [Also in Division F1] The impeller shaft 6 of a centrifugal pump is sealed by means comprising a sealing ring 76 rotatable with and axially slidable on the shaft and urged by fluid pressure into facial sealing contact with a stationary bush 75<SP>1</SP> The ring 76 is a sliding fit on a nut 77 secured to the shaft and having a driving pin 80 which engages a groove 81 in the ring. The pump comprises first and second stage impellers 3 and 2 rotatable between liners 9 and 10 and 7 and 8, respectively, and leakage between the stages along the shaft, is prevented by a ring 73 which is slidably mounted on the hub 14 of impeller 2, driven therefrom by a pin 74 engaging a groove 75 in the ring and urged by fluid pressure into contact with a stationary carbon bush 70 fixed in the liner 9. The bush 75<SP>1</SP> is mounted in an end cover 20 and any fluid leaking into the apace 82 is drained to a low-pressure point through a groove 84 in the shaft. A spring- loaded mechanical seal 66<SP>1</SP> is located between the impeller 3 and a flange 65 held in a fluidtight manner between members 34 and 36. The shaft is journalled in bearings 43, 44 and carries a water slinger 58 and an oil slinger 64. In a modification, Fig. 4, comprising first and second stage impellers 171 and 172, respectively, sealing rings 224 which are slidably mounted on the shaft 170 are driven by pins 225 engaging grooves 226 in the ring and urged by fluid pressure into fluid sealing contact with stationary bushes 221 in tubular portions 220 of bearing brackets 178. Outwardly of the bushes 221 are further mechanical seals comprising seal rings 229 pressed into contact with seal seats 231 by springs 230. Leakage is drained to a low pressure point through passages 240.
Patent GB-143043-A (GB)
Title: A machine for slicing bacon, ham, tongue, and the like
IPC: B26D1/143
Filed: 1919-05-22
Abstract: 143,043. Holmes, J. C. May 22, 1919. Cutting slices in succession.-In a meat-slicing machine of the type in which a meat carriage reciprocates to and from a rotating disk knife, the meat carriage B is reciprocated by a pin E thereon engaging a coarse-pitch screw-thread on a rotating shaft D. The meat is clamped by a crossbar T engaging uprights S, S<1>, a lever spring catch 5 retaining it in position. The meat table C is mounted for lateral slice-feed movement on circular rods 2 on the carriage B, which itself slides to and from the knife L along circular rods 0. At the end of the backward movement of the carriage B, a pin P on the rotating shaft D engages a lever J carrying pawls K, K' of different lengths driving a ratchet-wheel on the shaft of a pinion F gearing with a rack G moving the meat table C transversely for the slice feed. An adjustable plate partly encircles the ratchet-wheel for varying the thickness of the slices. The cutter disk may be sharpened by an abrading-disk M mounted en a sliding bracket and brought into contact with the cutter when desired bv a lever V. The cutting-disk is driven by a belt Z passing round a pulley on the shaft D. A stop on the table C engages the lever J to stop the slice feed when the safe limit of lateral displacement is reached.
Patent GB-1334203-A (GB)
Title: Process for manufacturing minute capsules
IPC: C08G18/62
Filed: 1972-03-20
Abstract: 1334203 Microcapsules NATIONAL CASH REGISTER CO 20 March 1972 [29 March 1971] 12880/72 Heading B8C Microcapsules having a solid or liquid core surrounded by a polymer mantle are prepared by establishing an agitated 3-phase system having a continuous phase of a hydrophobic liquid vehicle, a discontinuous phase consisting of particles or droplets of the material to be encapsulated and a second discontinuous phase consisting of dispersed droplets of a solution of a hydrophobic copolymer of ethylene and vinyl acetate in which from 38 to 55% of the acetate groups have been hydrolysed to alcohol groups, either the solvent of the said solution being immiscible with the said vehicle or the said vehicle having dissolved therein a phaseseparating material. The polymer deposits around the dispersed core material to form liquid walled capsules the walls of which may be solidified, e.g. by reaction with a di- or polyisocyanate, a diacid chloride or an alkali oxide. Suitable phase-separating materials include polybutadiene, polybutene, polydimethyl siloxane, cotton seed, linseed and soya oils, mineral oils and halogenated mineral oils. The process is especially suitable for encapsulating polar materials such as aqueous solutions, hydroxy and polyhydroxy compounds and aqueous solutions thereof, solids such as methylene blue, starch, methyl cellulose and gelatine, glycols, formamide, amines and carbonates.
Patent GB-263081-A (GB)
Title: Improvements in and relating to double-fluid cells
IPC: H01M6/24
Filed: 1926-05-20
Abstract: 263,081. Darimont, L. May 20, 1926. Addition to 241,729. Arrangements; electrolytes; diaphragms.-In a cell such as that described in the parent Specifications having a porous cell with semi - permeable membranes on the inner and outer faces a salt of an alkali metal, such as sodium chloride, is added to the depolarizing solution, in order that it may diffuse into the space between the membranes and increase the conductivity there. Tartaric acid may also be added. The invention is described in connection with a cell containing ferric chloride as a depolarizer. The carbons 20 and the porous pot 19 are mounted in openings in a disc 18 carried on a ring 17<b> fitting over the neck of the jar 16, the carbons, pot, disc and ring being secured together by cement, bitumen, &c. 21. Specification 250,803 also is referred to.
Patent GB-1498904-A (GB)
Title: Transfer device for printing machine
IPC: B41F21/04
Filed: 1975-03-27
Abstract: 1498904 Transferring sheets in printing machines HEIDELBERGER DRUCKMASCHINEN AG 27 March 1975 [28 March 1974] 12942/75 Heading B8R A transfer cylinder between the couples of a printing press which can be used to transfer sheets the same way up or to invert the sheets for perfecting has a gripper assembly rotatable about axis 48, individual drives being provided for each gripper element 60, 61 to rotate each about the axis the drives each incorporating a gear wheel coaxial with the axis. The drive may be obtained from a gear segment actuated by a cam, the drive for the respective elements being arranged at opposite ends of the cylinder. The cam follower may be adjustable in position to co-operate with two different cams to fulfil the two functions (Figs. 6, and 7, not shown). The gripper elements are preferably urged together by spring 67, and may have gripping surfaces which are curved and/or treated to increase grip, e.g. by grooving, or by coating with corundum or diamond. The gripper elements may be detachably connected, as shown, one to a rod 51 and the other to a coaxial tube 53.
Patent GB-1282683-A (GB)
Title: Polymer compositions and method for the production thereof
Inventor: HOLLAND WILLIAM DEAN
IPC: C08F265/00
Filed: 1970-03-18
Abstract: 1282683 Graft polymers AMERICAN CYANAMID CO 18 March 1970 [17 April 1969] 13093/70 Heading C3G A rubbery polymer based on a monomer contennt of (1) 50 to 99À5% by weight of ethylene, (2) 0À5 to 50% of vinyl acetate, a C 1  to C 18 -alkyl acrylate or methacrylate, acrylic acid or methacrylic acid and (3) up to 20% of another comonomer and containing sites reactive with a polyalkyl ether of a polymethylolmelamine is crosslinked with the said polyalkyl ether prior to, during or subsequent to grafting with a monomer comprising (a) at least 50% by weight of methyl methacrylate, (b) up to 50% of vinyl acetate or a C 1  to C 18 -alkyl acrylate and (c) up to 20% of another comonomer. A polymer of the graft monomer(s) may be blended with the graft polymer before or after it has been crosslinked. The graft polymer may be prepared by a two-stage process in which additional monomer and, optionally, additional free radical catalyst and a chain transfer agent are added in the second stage. In examples, monomer (2) is selected from acrylic acid, vinyl acetate, lauryl methacrylate, stearyl acrylate, ethyl acrylate, methacrylic acid, stearyl or methyl methacrylate, monomer (3) is beta-hydroxyethyl methacrylate, methacrylamide, alphahydroxypropyl methacrylate, methyl crotonate, acrylamide, maleic anhydride, acrylonitrile, vinyl chloride or vinylidene chloride, or a partially hydrolysed ethylene-vinyl acetate copolymer is used; graft monomer (b) is selected from vinyl acetate, ethyl acrylate, methyl acrylate, t-butyl acrylate and graft monomer (c) from methyl methacrylate, stearyl methacrylate, acrylonitrile, and styrene. The graft polymers produced are cross-linked with hexakismethoxymethyl melamine, a mixed methylated - methylolated melamine, tetramethyl ether of hexamethylol melamine, dibutyl ether of trimethylol melamine, pentaethyl ether of hexamethylol melamine, butylated hexamethylol melamine, mixed methyl and ethyl ether of hexamethylol melamine, or triethyl ether of pentamethylol melamine, in the presenc of p-toluene sulphonic acid. In Example 15, a copolymer of methyl methacrylate and ethyl acrylate is blended with a graft polymer of said methacrylate and acrylate on an ethylene/vinyl acetate/acrylic acid terpolymer before crosslinking with hexakismethoxymethyl melamine and said acid. Reference has been directed by the Comptroller to Specification 1,208,345.
Patent GB-559434-A (GB)
Title: Improvements in the welt turning mechanism of straight-bar knitting machines
IPC: D04B11/32
Filed: 1942-09-17
Abstract: 559,434. Knitting-machines. BLACKBURN & SONS, Ltd., G., START, H. W., and START, E. Sep. 17. 1942, No. 13100. [Class 74 (ii)] A set of transfer points F are provided in a straight-bar machine to engage the loops B' held by the welt hooks A when the welt has been knitted, to hold the loops while the welt hooks are withdrawn and restore the loops to the needles D. Each welt hook A has a throat E disposed at a higher level than the hook-shaped end, and the point G of the hook is bent downwards towards the stem of the hook. A raised part H is provided between the end G and the throat.
Patent GB-1308548-A (GB)
Title: Position indicating system
IPC: G01B7/004
Filed: 1970-03-18
Abstract: 1308548 Co-ordinate determining arrangement THOMSON - CFS VISUALISATION ET TRAITEMENT DES INFORMATIONS 18 March 1970 [19 March 1969; 31 March 1969] 13129/70 Heading G1N [Also in Divisions G4 and H4] The co-ordinates of the position M on a rigid plate at which a force is applied (for example by a finger) is determined from the signals derived from transducers supporting the plate. As shown for piezo-electric transducers C 1  - C 4  are disposed in a square and the sides C 2  C 1  and C 2  C 3  represent the X and Y axes respectively. If X and Y represent the co-ordinates of the point M on the plate 8 at which the force is applied and F 1 , F 2 , F 3 , F 4  represent the reaction forces sensed by the transducers then, F 1  +F 2  +F 3 +F 4  = F, and by taking moments X = K(F 1 +F 4 )/F and Y = K(F 3 +F 4 )/F Signals G 1 , G 2 , G 3 , G 4  Fig. 2 (not shown) proportional to the respective forces are derived from the transducers and integrated, G 1  and G 4  being added at 51, 63 and G 4  being added at 53, and all four being added at 52, division circuits 61, 62  then being provided so that output signals H 1 , H 2  representative of X and Y are derived. To overcome the effect of extraneous signals due to vibration an OR gate 2 and a threshold circuit 3 are provided to control gates 41 ..... 44 upstream of the adders. If A-D converters are provided after the integrators 11 ..... 14, the circuit may be designed thereafter in a digital form. In a modification Fig. 3 (not shown), the sensors are piezo-electric devices are of a type that resonate and have a Q factor dependent on the applied pressure. These devices are fed with a signal at their resonate frequency, the amplitude of the output obtained (which is dependent on the Q factor and hence the forces) being utilized in a circuit similar to that of Fig. 2 (not shown). If the plate 8 is of glass and disposed above a cathode ray tube screen the signals H 1  H 2  obtained by pressing on the plate may be utilized to trace curves on the screen. The plate 8 may be suspended by extensionresponsive transducers.
Patent GB-297451-A (GB)
Title: Improvements in or relating to absorption refrigerating machines
IPC: F25B35/02
Filed: 1928-05-04
Abstract: 297,451. Sulzer FrÞres Soc. Anon. Sept. 22, 1927, [Convention date]. Protecting-plates for boilers.-The parts of the generator of an absorption refrigerating apparatus liable to corrosion due to heat and condensed moisture are protected by a liner, preferably removable, which may be in part of beat-conducting material such as aluminium and in part of ceramic material. The invention may be applied to continuous-cycle apparatus, but is particularly applicable to reversing apparatus, in which the generator-absorber 1, Fig. 1, may be formed of wrought-iron tubes 2, 3 welded to end covers 4, 5. The liner may be a continuous cylinder 10 of aluminium, cast iron, or ceramic material inserted in the central flue and made gas-tight at the points 11, 12. The source of heat may be an air-pressure oil-burner 7, and the outer walls of the generator may be protected by insulation 6. In the modification shown in Fig. 2, in which a gas burner 15 is employed, the liner may consist of a lower section 16 having gills 14, an intermediate section 17 having ribs providing a helical flue 20, and an upper section 18, the upper joint 30 being below the lowest liquid level. The section 18 is separated by an insulating space from the wall of the generator. The lower sections may be of aluminium and the section 18 of ceramic material or cast iron coated with asbestos or other heat insulation. The burner is arranged within a cover 24 and is supplied with air through passages 21.