baber/WOPTO huggingface dataset:
Patent GB-651800-A (GB)
Title: Improvements in hardness testing, in particular in micro-hardness testing
IPC: G01N3/42
Filed: 1948-01-27
Abstract: 651,800. Testing physical qualities of materials. GRODZINSKI, P. Jan. 27, 1948, No. 2400. [Class 106 (ii)] An indenter for testing hardness comprises a diamond or other hard material having a sharp, curved, indenting edge at which the " included angle " (defined in the Specification) is at least 120 degrees. As shown in Fig. 3, the circular indenting edge 5 of a diamond 2 is formed by the intersection of two conical surfaces 3, 4. The diamond is fixed in a sector-shaped member 8 mounted in a circular dovetail groove 7,  Figs. 4a and 5, in a holder 6 which may be attached to testing apparatus (not shown). The member 8 can be adjusted, to bring a different point on the edge 5 into action, by a worm 11 engaging teeth 10, and is normally clamped by a fork-shaped block 18 and screw 19. A formula is given for calculating the hardness from the measured length of the impression made in the tested material. U.S.A. Specification 2,091,995 is referred to.
Patent GB-1425136-A (GB)
Title: Screw-securing device and a method of screwing a screw in a bore
IPC: F16B39/22
Filed: 1974-01-18
Abstract: 1425136 Securing screws MASCHINENFABRIK AUGSBURG-NURNBERG AG 18 Jan 1974 [20 Jan 1973] 02479/74 Heading F2H  A headless screw 18 is secured in a tapped bore by screw receiving material 13, the material 13 being; initially contained in a spherical container (Fig. 1, not shown) placed in the bore prior to entry of the screw. The container may be either elastic or non-elastic, suitable non- elastic materials being plastics or glass. The container may be pierced or shattered by the screw, or may have an opening through which the material exudes when the container is pressed by the screw.
Patent GB-1285435-A (GB)
Title: Electrical switch
Inventor: HOWE JOHN ARTHUR
IPC: H01H23/12
Filed: 1970-01-19
Abstract: 1285435 Snap action switches CARR FASTENER CO Ltd 30 Oct 1970 [19 Jan 1970] 2481/70 Heading HIN  A snap acting rocker switch comprises an actuator 3 with a depending finger 16; a contact lever 10 pivotally supported by a terminal 8; a pair of fixed contacts 17, 19 co-operating respectively with contact 11, 12 on the lever IO; and a spring 13 which rests upon the lever 10, the spring having a concave portion co-operating with the finger 16 and two looped portions 14 bearing respectively on the two ends of the lever 10. The casing of the switch is of resilient plastics and has fingers 21, 22 for holding it in a panel. The rocker 3 forms a cover for the casing and is held in place by moulded lugs 4 co-operating with holes in the side walls of the casing.
Patent GB-183160-A (GB)
Title: Improvements in apparatus for use in cooling, cleansing or scrubbing gases in connection with all types of gas producers
IPC: B04C5/20
Filed: 1921-01-19
Abstract: 183,160. Davies, O. B. Jan. 19, 1921. No Patent granted (Sealing fee not paid). Density separators; cooling parts.- The apparatus comprises in combination, a central cylinder c, a second cylinder b concentric therewith. the inner cylinder and second cylinder having located between them a helical plate n designed to cause the gas admitted at p to flow at a high velocity through the helical passage constituted by the plate and cylinders so as to remove the solid and liquid matters in suspension by centrifugal action prior to the gas passing up the central cylinder to the gas service pipe q, the separated matters accumulating in a chamber w, at the base of the apparatus, and a water or other cooling jacket e. A filtering-device of fibrous metallic or mineral character may be removably placed in the cylinder c. Fins for aircooling may be used in place of the jacket e. A baffle z assists in the separation of solid and other matter and such matter can be removed by de. taching the base r.
Patent GB-411960-A (GB)
Title: Improvements relating to the mechanical separation of heterogeneous matter in fluid streams
IPC: B01D45/12
Filed: 1933-01-26
Abstract: 411,960. Centrifugal gas - cleaners. FRASER, R. P., 20, Margravine Gardens, Barons Court, London. Jan. 26, 1933, No. 2569. [Class 23.] Solid particles are separated from fluids, particularly from gases, by the mixture being conducted along a curved passage of increasing cross-sectional area with a branch passage from the side of smaller radius to form the path of the separated light component. A block 1, Fig. 2, has an air suction chamber 2 and a dust collecting chamber 3, and a venturilike passage comprises the inlet 4 and curved delivery portion 5. A slit 8 is formed in the wall between the passage 5 and chamber 2. End plates are clamped to the block and suction applied to the chamber 2. Clean gas is drawn through the opening 8 while the dust particles pass on to the chamber 3. Several such separator units may be combined to form a group as shown in Fig. 3 with an inlet manifold 12 conveying the mixture to each venturi entry, and a pipe 10 in communication with each suction chamber. The combined dust chambers may be cleaned after the removal of the plugs 11. Alternate inlets may be arranged on opposite sides of the group, and each inlet may be provided with a damper to cut out its separator unit if desired. The venturi passages may be rectangular in cross section and may be formed of channels in the faces of adjoining units. The unit may be cylindrical in form with three chambers as shown in Fig. 9; the suction and dust chambers 2, 3 are similar to those shown in Fig. 2, and the mixture is admitted through the chamber 17. The unit may be built up of stampings 19, 18, 20, Fig. 10, the middle unit 18 being cut to form the passages 4, 5. In a modification a pipe connects the dust chamber to a vessel containing liquid, so that when the suction is operative, liquid is drawn up into the dust chamber.
Patent GB-779711-A (GB)
Title: Improvements in footwear
IPC: A43B9/20
Filed: 1955-01-28
Abstract: 779,711. Boots &c. UNITED STATES RUBBER CO. Jan. 28, 1955 [April 13, 1954], No. 2619/55. Classes 17 (1) and 17 (2). A method of making light footwear with fabric uppers employs uppers 20, 21, Fig. 6, which are joined along the edges 24, 25 and incorporate elastic threads to give elasticity as indicated by the arrows to ensure a snug fit at the leg opening 35. The bottom edge of the upper is sandwiched between a forcing strip 23, Fig. 3, and an inner strip 23<SP>1</SP> which are fuzed together by heat and pressure forming rivets 26<SP>1</SP> either through punched holes 26 or the natural interstices of the fabric. The edge of the strip 23<SP>1</SP> need not extend beyond the edge of the upper but the excess material of the forcing strip 23 is turned outwards and fuzed to a thermoplastic resinous sole 30 by placing the edge of the strip 23 over the edge 28 of a hollow electrode 27, placing the sole over the strip edge and applying heat and pressure by another electrode 31. A longer inner thermoplastic strip 36, Fig. 8, may be used to give a partial waterproof lining particularly for overshoes. The uppers may also be made water-repellent.
Patent GB-365334-A (GB)
Title: Improvements in and connected with machines for moulding dough and for like purposes
IPC: A21C7/02
Filed: 1931-01-27
Abstract: 365,334. Moulding dough by rolling- machines. DILLEY, C. D., 15, Lower Red Cross Street, Leicester. Jan. 27, 1931, No. 2648. [Class 87 (ii).] A dough-moulding machine of the type described in Specification 240,364, [Class 87 (ii), Moulding plastic &c. substances], is provided with means for supporting the annular former 3 at points within its circumference and also with means for moving the axis of the former laterally relative to the axis of the table. The table 11 is loosely mounted on a central shaft 10, is driven by a variablespeed friction drive and may have its surface serrated or corrugated. The former 3 is carried by a disc 7, the centre of which is connected by a crank 9 to the rotating shaft 10. The former 3 is given a reciprocating motion by fixed guiding rollers 15 which engage circular holes 16 in the disc 7. An endless belt 20 is provided for removing the moulded dough.
Patent GB-1014789-A (GB)
Title: Improvements in pivot assemblies for windows or the like
IPC: E05D7/085
Filed: 1964-01-21
Abstract: 1,014,789. Pivot assemblies. ATVIDABERGS INREDNINGAR A.B. Jan. 21, 1964 [Jan. 22, 1963], No. 2667/64. Heading E2F. A pivot assembly for pivot windows &c. comprises two circular discs 6, 7 disposed in circular blind bores 4, 5, in a light-alloy housing 3, the discs having arc-shaped recesses 15, 16, so that during the first 90 degrees of window rotation the recess 16 engages the disc 6 to prevent rotation of the disc 7 in the housing 3, then a stud 17 in the housing abuts the end of a slot 18 in the disc 6 to prevent further rotation of the disc 6 in the housing, and then during window rotation from 90 degrees up to 180 degrees the recess 15 engages the disc 7 to prevent rotation of the disc 6. The first disc 6 is adjustably clamped to a bracket 1 screwable to a window-frame, and the second disc 7 is separably attached to a bracket 2 screwable to a window sash. The discs 6, 7 each have a radial slit, the edges of which are engaged by a conical screw and nut 13, 14 received in conical bores 20 and adjustable via holes 19 in the bottom of each bore 4, 5 so as to adjust the friction between the discs and the bores.
Patent GB-193829-A (GB)
Title: An improved composition for use in the manufacture of concrete structures and the like
IPC: C04B28/02
Filed: 1923-01-30
Abstract: 193,829. Guy, F., and Davey, M. L. Feb. 22, 1922, [Convention date]. Concretes and motars.-A fire-proofing or waterproofing composition to be added to concretes consists of soap, sand, and alum. In making the composition 1 part of a commercial soap containing 10 per cent. of sodium silicate is dissolved in 1¢ parts of hot water and 3 parts of sand are added. The mixture is allowed to set, ground, and mixed with ground alum in the proportions of 2:1 for waterproofing and 1 : 1 for fireproofing. The composition is added to concrete before moulding in the proportion of 1-1¢ lb. to the cubic foot.
Patent GB-414401-A (GB)
Title: Golf practice mat
IPC: A63B57/00
Filed: 1933-01-28
Abstract: 414,401. Golf-practising appliances. KING, W., Sunnyside, Staple ford, Cambridgeshire. Jan. 28, 1933, Nos. 2737 and 2738. [Class 132 (ii).] A golf practice-mat comprises a stance section g having a hinged member supported by springs e and adapted to yield under the weight of the player and thereby close a switch d to light a lamp visible through a recess in a tee mat under the ball, so that failure to watch the ball is proved by failure to see the lighted lamp.
Patent GB-289184-A (GB)
Title: Improvements in or relating to brake operating gear for vehicles and other machines
IPC: B60T7/10
Filed: 1927-02-01
Abstract: 289,184. Ward, L, G. Feb. 1, 1927. Hand and foot actuation. - Brake operating mechanism comprises a slidable toothed bar 3 connected by a cable 4 to the brake and adapted to be operated to apply the brake by both forward and rearward movements of a lever 10 by means of pawls 11, 11<a> pivoted above and below the pivotal point 10<a> of the lever. A sliding plate 6 is adapted to hold the bar 3 in the applied position and is released by a spring pressed pedal 8. The pawls are adapted to be disengaged by a rod 13 connected to the pawl 11 and provided with a stop 12 engaging under the pawl 11<a>. A further sliding plate released by a foot pedal to hold the bar in applied position is shown in a modification. The mechanism is mounted in a frame comprising a plate 1 bent in the form of an inverted U having distance pieces 2 between the lower edges which act as rollers for the bar 3 to to run on. A shield 14 secured to the lever 10 prevents entrance of dirt. When the mechanism is used to apply a brake on a trailer the cable 4 runs between pulleys or through a, flexible casing or the cable is wrapped on a pulley on a shaft at the rear of the tractor and another cable wrapped in the opposite direction on another pulley on the shaft leads to the trailer brakes. The brake is looked on by bringing the end of the lever against a stop 15 after the brake has been applied when release of the slidable plates will not release the brake but the lever 10 must be moved back so as to bring another tooth of the bar under the slidable plate 6 when the pawls 11, 11<a> can be raised from the teeth of the bar 3. Specification, 276,478 is referred to.
Patent GB-870141-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B7/085
Filed: 1957-09-16
Abstract: 870,141. Photo-electric exposure control. BELL & HOWELL CO. Sept. 16, 1957 [Aug. 13, 1957], No. 2876/60. Divided out of 870,139. Class 40(3) [Also in Group XX] A photographic camera comprising a photoelectric cell and an automatically adjustable diaphragm for varying the exposure of film in the camera includes mechanism driving said diaphragm in response to the level of light striking said cell to actuate said diaphragm automatically throughout its range of adjustment in accordance with said light level, and a manual control normally positioned out of interference with the automatic driving mechanism but operatively interconnectible with the diaphragm for manually actuating said diaphragm selectively in either direction of diaphragm movement independently of the operation of said diaphragm by said photo-electric cell. As shown, the exposure of film 5 positioned behind film gate 12 is determined by shutter 13 and diaphragm aperture 62 which is formed by apertured rotatable diaphragm discs 55 as described in Specification 870,140. The aperture 62 is varied by gear 59 which engages respective gear elements 58 of discs 55 and is rigidly connected for rotation with moving coil 20 of a galvanometer mechanism which is energized by current from photo-electric cell 23 through conductor 35 and the camera body, which is represented as "ground" at 31 and 36. A manual control knob 89 has rigidly attached to it an arm 100, which for normal operation of the automatic mechanism is in contact with an insulating portion 99 of plate 97. On rotation of knob 89, arm 100 comes into contact with conducting portion 98 of said plate, the photo-electric current is short circuited to "ground", and the diaphragm aperture 62 is then controlled by knob 89, arm 94 attached thereto being engaged by arm 64 rigid with said rotor coil under loading of the galvanometer bias spring. Specification 870,142 also is referred to.
Patent GB-130421-A (GB)
Title: Improvements in Hand-grenades.
Inventor: DOVER HORACE WALTER
IPC: F42C14/02
Filed: 1918-02-20
Abstract: 130,421. Dover, H. W. Feb. 20, 1918. Projectile fuses. - Relates to handgrenade fuses wherein a spring- actuated striker is controlled by an external lever, and consists in the provision of a locking- member permanently attached to the lever and normally interposed between the lever and an abutment on the grenade body, the locking-member being adapted to be moved, by sliding or otherwise, so as to release the lever when required. In the construction shown, the locking-device consists of a sheet-metal strip 21, 22 folded around. a part 16 of the slotted external lever 11 of the grenade, and having a hook 21<b> which, as shown in Fig. 8 (which is an underneath view), prevents complete withdrawal of the strip. The strip normally engages under a hooked abutment 20 which passes through the slot in the lever, and is cut away as shown, so that by sliding it laterally, it can be moved clear of the abutment. Suitable corrugations such as 26 are formed on the strip to prevent accidental movement. Specification 117,734 is referred to.
Patent GB-726553-A (GB)
Title: A cylinder and piston device
IPC: F16D65/28
Filed: 1953-02-04
Abstract: 726,553. Pistons; cylinders. WESTING- HOUSE BREMSEN - GES. Feb. 4, 1953 [March 21, 1952], No. 3162/53. Class 122 (1). [Also in Group XXXIV] A piston 3 is actuated by compressed fluid in a cylinder 1 in which an elastic medium, e.g. a spring 9 or compressed air, is provided to press the piston rod 7 into contact with the piston. As applied to operating a brake, the spring 9, which is pre-loaded to an extent at least equal to the maximum force in a spring 6 for returning the piston, acts between a flange 11 on the piston rod and a ring 10 in a guide tube 4 fixed to the piston. A flange 5a on the cover 5 of the cylinder restricts the stroke of the piston, although the piston rod 7 may be withdrawn further from the cylinder by operating a hand brake which further compresses the spring 9 and increases the force on the brake shoe. The piston-rod is guided in the tube 4 by a ring 8.
Patent GB-1088885-A (GB)
Title: Improvements relating to electrical transformers,reactances and the like
Inventor: KROBER HORST
IPC: H01F27/26
Filed: 1965-01-25
Abstract: 1,088,885. Transformers and inductors. LICENTIA PATENT - VERWALTUNGSG.m.b.H. Jan. 25, 1965, No. 3175/65. Heading H1T. Clamping of the laminations of a split transformer or reactor core is effected using clamping strips 10 (Fig. 8) round the core cross-section which may provide the sole clamping forces, the members 2, 2<SP>1</SP> being formed as T pieces or angle irons. Members such as 7 (Fig. 2), in the gap between the core halves may be used additionally to pull together the pressure plates 2, 2<SP>1</SP> (Fig. 2) which may be insulated from the core or made of plastics/glass fibre material. Instead of studs 5<SP>1</SP> and tightening nuts 5, the members 2, 2<SP>1</SP> and 7 may be welded together and tightening effected by wedges (11) (Fig. 6A, not shown). Cooling oil may be circulated through the gaps between the core halves where these gaps are not occupied by the clamping equipment. The pressure plates of the upper yoke may be provided with screws to operate on the winding compression plate.
Patent GB-472739-A (GB)
Title: Improvements in or relating to radio receivers and the like
IPC: H03J7/04
Filed: 1937-02-03
Abstract: 472,739. Wireless receiving circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 3, 1937, No. 3240. Convention date, March 26, 1936. [Class 40 (v)] In a radio receiver having automatic control of tuning, the control voltage is derived by comparison of phase of currents or potentials between points in a resonant network. In Fig. 1, the resonant circuit L, C is connected in the anode circuit of an intermediate frequency amplifier of a superheterodyne receiver, and is tuned exactly to the I.F. At resonance the current Js is 90‹ out of phase with the current Jg; the voltages Ul, U2 are similarly 90‹ phase-displaced and are applied to a wattmeter type of mixing circuit WM from which is derived a D.C. potential Ur which varies in sign and magnitude with departure from tune of the I.F. amplifier. Alternatively, the voltage Ul may be derived from across inductance L instead of resistance R1; the voltages U1, U2 are then in phase at resonance and must be passed through phase rotating networks to produce 90‹ phase displacement at resonance, Fig. 2 (not shown). The wattmeter circuit may comprise a known rectifier bridge circuit, Fig. 3 (not shown) ; or the mixing may be effected by applying the two voltages to two grids of a hexode, Fig. 4 (not shown). Fig. 5 shows a method of deriving the control voltage from a band-filter L1 C1, L2 C2. In this case the phase-displacement at resonance of the input and output potentials of the filter is 180‹ at resonance ; the phases are therefore rotated through 45‹ each by the phase rotating networks C R2, L R1. In Fig. 6 a simple resonant intermediate frequency circuit L, C includes a rectifier bridge a, b, c, d which is only conducting through point b for one half cycle and in the reverse sense only through point d for the next succeeding half cycle. The resulting rectified potential Ur is zero at resonance and varies in sign and value with departure from tune.
Patent GB-680188-A (GB)
Title: Improvements in or relating to wrapping machines
IPC: B65B59/00
Filed: 1949-06-03
Abstract: 680,188. Wrapping-machines. FORSTER, L. G. June 3, 1949, No. 3261/51. Divided out of 680,115. Drawings to Specification. Class 94(i) The machine described is the same as that described in the parent Specification. The claims relate to the mounting of the tuckers 22, 23 in a readily detachable manner in their operating members whereby they may be removed and replaced by elements of different dimensions to suit different sizes of packet. Specifications 645,418, [Group XXX], 668,080, 668,081, 668,082, [all in Group VIII]. and 680,187 are referred to.
Patent GB-541588-A (GB)
Title: Improvements in control limiting devices on aircraft
IPC: B64C13/00
Filed: 1940-02-21
Abstract: 541,588. Controlling aircraft. ROUANET, R. L. M. F., and REY, F. V. A. J. Feb. 21, 1940, No. 3300. Convention date, Feb. 22, 1939. [Class 4] The overloads on an aeroplane exceeding a given value brought about by gusts of wind &c. are automatically corrected or limited for aircraft of the type comprising pivoted wings 1 held in equilibrium by elastic connections 4, by correcting or limiting the movement of the control surfaces or their operaring mechanism, such as the control stick 20, by means of a mechanical connection between these parts and the wings operated by the rotation of the latter. In the form shown under such conditions for an upward overload, the movement of the control stick is corrected or limited for the elevator control by a stop 18 on an arm 17 rigidly secured to a rotatable sleeve 12, the sleeve being rotated in the direction of the arrow f<SP>1</SP> by the pressure of the wing extension 3 on one end of a bell-crank lever 7, 8 which is interconnected to the sleeve by a link 10 and a crank-arm 11 keyed thereto. In the inoperative position, the stop is held away by a spring 19, the end 7 of the bellcrank lever being applied against a stop 8a. The action of the stop may be greater or less than that which can be effected by the pilot; in the latter case the stop merely forms a warning and may in addition be combined with a warning signal. The stop 18 is sufficiently wide to enable it to contact with the control-stick whatever the position of the latter may be due to its rotation about a longitudinal axis 23 for effecting lateral control. In a modification, excessive overloads in the downward direction may also be allowed for by replacing the bell-crank lever by a pair of linked pivoted levers, one above and one below the wing extension 3, and forming the stop 18 as a square ring encircling the control stick; the movement of the latter can then be corrected or limited in either its fore or aft position according as the overload is downward or upward.
Patent GB-1190671-A (GB)
Title: Temperature Detecting Apparatus.
Inventor: NIJO KIYOICHI
IPC: G01K7/16
Filed: 1968-01-22
Abstract: 1,190,671. Measuring temperature, electrically. K. NIJO. Jan. 22, 1968, No.3321/68. Heading G1N. [Also in Divisions F4 and G3] A temperature detector comprises two electrodes bridged by water and a switching circuit connected to the electrodes to be operated by a change in electrical resistance between the electrodes due to a physical state transformation of the water between the liquid and solid states. One or both of the electrodes may form part of a hermetically sealed chamber containing the water to which may be added an inorganic salt or organic compound (examples given) to lower its freezing point to a temperature it is desired to detect. Alternatively, the detector may comprise two plate electrodes between which is sandwiched a water absorbent layer open to the air. An arrangement for controlling defrosting of a refrigerator includes two such detectors, one mounted on a cooling fin of the evaporator in a highly cooled position and the other mounted on a plate spaced from a cooling fin in a lens cooled position by a distance corresponding to the thickness of frost at which defrosting is to begin, connected to a control circuit which stops the cooling when both detectors are below their freezing point and restarts the cooling when both detectors are above their freezing point.