baber/WOPTO huggingface dataset:
Patent GB-871015-A (GB)
Title: Improvements relating to tandem driving drum assemblies for belt conveyors
Inventor: LOW ALEXANDER CHARLES
IPC: B65G23/34
Filed: 1956-10-29
Abstract: 871,015. Driving apparatus for belt conveyers. MAVOR & COULSON Ltd. Oct. 29, 1957 [Oct. 29, 1956], No. 32853/56. Class 78 (1). In driving-apparatus for belt conveyers of the type comprising two driving drums 18, 19 around which the conveyer belt is passed in zigzag fashion, the drums are mounted such that their heights can be varied, so that either drum 18 can be selected as the highest to receive the incoming stretch of belt 30A, as shown, or the drum 19 can be selected as the highest to receive the incoming stretch of belt when this comes from the opposite side to that shown. By this means it is said that the drive gearing is always arranged on the side of the assembly opposite the working face 31 when used in a mine roadway. The drums 18 are mounted on shafts 16, 17 driven by gearing 11-15 from a motor 10. A brake 25 is mounted within a housing 24 for engagement with a brake drum 26 on the motor shaft. The means for adjusting the heights of the drums comprises circular carriers 40 in which the shafts 16, 17 are mounted eccentrically, the carriers 40 being rotatable in ring-like frames 43 formed in side-frames 20, 21. Each carrier is secured in one of two rotational positions spaced 180 degrees apart by two keys 41 fitting in aligned slots in the carrier and the frame 43. Removable cover-plates 45, 46 embrace the carrier assembly to retain the keys in place. When the heights of the drums are to beinterchanged the cover-plate 45 and keys 41 are removed from each of the carrier assemblies to enable the carriers to be rotated through 180 degrees, after which they are then replaced.
Patent GB-321555-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B15/26
Filed: 1928-11-10
Abstract: 321,555. Dawe, J. Nov. 10, 1928. Tyres, non-elastic; temporary tyres for adapting agricultural machines for use on roads; extension-rims for use on soft ground. - A tractor wheel comprises a central corrugated disc and one or more spaced tread rings B of corresponding sinuous form connected by spaced plates C which are preferably arranged non- radially. In the construction shown in Fig. 8, the central disc is in two parts A<1>, A<2> detachably connected by bolts E to permit replacement of the outer disc by a rubber-tyred wheel F' for use on hard roads. In the form shown in Fig. 5, the rings B are fitted with additional tread slots G shown as struck-up from continuous rings. In modifications (not shown), the rings B and the edge of the central disc may be fitted with rubber treads.
Patent GB-896637-A (GB)
Title: Improvements relating to ratio-indicating instruments
IPC: G01L15/00
Filed: 1958-10-15
Abstract: 896,637. Pressure gauges; indicating-apparatus. GARRETT CORPORATION. Oct. 15, 1958 [Oct. 15, 1957], No. 32952/58. Classes 106 (2) and 106 (4). In apparatus for indicating the ratio of two forces, one of the forces and the difference of the forces are applied to predetermined spaced points 36, 70 of a main lever 16 which is balanced by automatically moving its fulcrum 20 along a portion of the lever which does not lie between the points 36, 70. Three bellows assemblies 11, 12, 13 are mounted coaxially, the first, 11, being bolted at 30, 32 to a frame 10 and bearing at knife edge 34 on an auxiliary lever 14, the second, 12, being bolted at 51 to the lever 14 and at 56 to another auxiliary lever 15, and the third 13 being welded to the lever 15 and bolted at 64, 66 to the frame 10. The bellows 13 are evacuated and the smaller and greater of the pressures are introduced into the spaces between the bellows 25, 54 and their housings 22, 50 which form the assemblies 11, 12, the levers 14, 15 are pivoted at 27, 72 and through flexure strips 36, 70 thus apply the pressure difference and the larger pressure to the lever 16, whose fulcrum 20 is moved by an electric follow-up system to restore the balance of the lever 16, the position of the fulcrum 20 then indicating the required ratio. The frame 10 is supported at three points in a collar 21 which serves to mount the apparatus without distorting the frame. Counterweights 35, 60 are provided on the auxiliary levers 14, 15 to reduce the effect of acceleration and the main lever 16 may be balanced as described in Specification 768,503. In another embodiment, Figs. 7 and 8 (not shown), the three bellows assemblies are arranged in tandem with the line of their axes parallel to the main lever to which the forces are applied through bell-crank levers. The apparatus may be used as a Mach meter and would be particularly useful for high Mach numbers, it may also be used for determining the power developed in a gas-turbine power plant. Specification 896,638 also is referred to.
Patent GB-506534-A (GB)
Title: Improvements in or connected with winches for use with tractors
IPC: B66D1/02
Filed: 1937-11-30
Abstract: 506,534. Winches. FISHLEIGH, J. A. Nov. 30, 1937, No. 33049. [Class 78 (v)] A winch is mounted on a wheeled vehicle readily connectable to a tractor and provided with ground anchoring means. The winch drum 10 is geared by way of a pinion 12 to a shaft 4 on which is mounted a gear box 5 rotatably adjustable to bring its shaft 6 into fine with the power take-off shaft of the tractor, which is pin-coupled to n drawbar 3. The pinion 12 is slidable in and out of engagement with the drum gear-wheel by a rockable lever 17, and a slip clutch may be interposed between, the gearing and the shaft 4. A frame strut 19, pivoted to the vehicle at 1a, has an edge 19a, or projections, spikes, &c. to engage the ground and oppose the pull of the cable 20, a lip 19e preventing the strut from digging too deeply. The cable 20 rides over a pulley 21 stidable on a shaft 22, and is constrained laterally by two vertical bars 16. A cross-bar 19g on brackets 19f attached to the strut 19 abuts against the vehicle frame 1 to limit the angular dip of the strut.
Patent GB-720258-A (GB)
Title: Improvements in or relating to the manufacture of lavatory basins or sinks from sheet metal
IPC: B21D51/18
Filed: 1952-12-31
Abstract: 720,258. Making hollow-ware. RODMAN, C. J. Dec. 31, 1952 [Jan. 2, 1952], No. 33078/52. Classes 83 (2) and 83 (4). Cupping.-A method of drawing two depressions in sheet metal comprises first forming one of the depressions and thereafter forming the other depression while drawing the first depression toward the second depression and supporting the first depression interiorly to limit the amount its depth can be reduced. In an embodiment for making a lavatory basin or sink a metal sheet of high-grade iron is drawn in a press to produce a well 2 slightly smaller in dimension than finally required. The back edge of the sheet is then provided with locating notches 4 and trimmed to form a straight edge 3. The sheet is inverted and placed over a sliding pilot 30 supported in the lower platen of a press and the shelf back of the lavatory basin or sink is then drawn into the rear of the sheet by means of a punch 23 located in the upper platen 21 of the press and fastened to an inner ram, said punch working against a pressure plate 25 supported pneumatically by a cylinder 26. The notches 4 are so located that they coincide with the corners 7 of the shelf to ensure smooth corners. Drawing the shelf back distorts the well by forming wrinkles 8 and these are removed by enlarging the well to its final depth and shape. The sides 9 and front 10 are next wiped down with a double-action draw die (not shown). Finally the edges are trimmed to produce a narrow flange which is turned inwardly; the drain hole 12 is punched in the well bottom; the holes 13 are provided for fixtures, and the lavatory is pickled prior to enameling. When punching the shelf back the bottom 22 of the upper platen acts as a pressure pad and as the punch 23 draws the shelf the pilot 30 which supports the well slides on keyways in the lower platen towards the punch, its movement being limited by a stop 33. As the punch sinks into the opening 24 a narrow portion of the sheet between the back of the opening 24 and the locating pins 26 is drawn down and turned upwardly and the thin strips outside the notches are turned in to form flanges at the back of the shelf. The wall of the opening 40 in the upper platen limits the extent of backward movement of the pilot and well and prevents the sheet from being drawn away from the rear wall of the pilot. The pressure plate 26 also acts as an ejector.
Patent GB-210231-A (GB)
Title: Automatic humidity regulator
IPC: F24F11/00
Filed: 1922-12-05
Abstract: 210,231. Wingfield, B. R. Dec. 5, 1922. Air, moistening. - An automatic humidity regulator for use at constant temperature comprises a humidostat consisting of a large number of small diameter tubes 1 and one tube 3 of a larger diameter containing a regulating piston 4, all containing liquid and connected to a chamber 2 communicating by capillary tubing 6 with a moisture valve controller 7. The tubes 1, 3 are enveloped in hygroscopic material which dips into water contained in a tank 8. When the percentage of humidity falls, the cooling effect due to the increased rate of evaporation from the envelopes on the tubes 1, 3 causes the liquid in said tubes to contract and allow the spring-pressed moisture valve 7 to open, and vice versa. Adjustment of the apparatus is effected by a regulating head 5 on the piston 4. When the apparatus is to be used at varying temperatures, a thermostat constructed similarly to the tube 3, is provided in combination with the humidostat so as to counteract the effect of increased or decreased temperature on the liquid in the tubes 2, 3.
Patent GB-486507-A (GB)
Title: Improvements relating to cigar or cigarette cases
IPC: A24F15/14
Filed: 1936-12-03
Abstract: 486,507. Cases for cigarettes &c. LOWENTHAL, B. Dec. 3, 1936, No. 33230. [Class 18] A case for cigarettes &c. has a hinged corner portion 3 which can be turned aside to expose the end cigarette 2a and is provided with means to cause partial ejection of that cigarette, the turning aside of the corner and the operation of the ejecting means being effected as the result of a single manual operation. As shown, the corner is connected by a link 6 to a foot 5 positioned below the cigarette 2a so that, as the corner is turned aside, the cigarette is automatically projected. The corner is square or triangular in shape and carries a projection 3<11> by which it can be pushed aside. In an alternative construction the corner is spring urged to the open position and is released by sliding a button or pulling a chain, the ejecting means being connected to the corner releasing catch ; or the ejecting device may be operated manually and the corner catch be released by the ejecting device. The row of cigarettes is pushed towards the delivery end of the case by a follower 4 connected by lazytongs 7 to a plate 4<11> similar to the plate 4 and screwed to the end of the case. A spring 8 provides the motive force for the follower. The foot 5 may be replaced by a member engaging the cylindrical surface of the cigarette. To load the case, a sliding lid 9 is pulled out so that a screw 10 thereon can engage the lower end of the follower 4 and pull the latter back to the end of the case. The follower runs in and is guided by a slot 12 in the lid 9, and the screw 10 runs in a slot in the case.
Patent GB-777317-A (GB)
Title: Vent system for fuel tanks
Inventor: JR JOHN HANCOCK BABBITT
IPC: B60K15/035
Filed: 1955-11-22
Abstract: 777,317. Venting tanks. CATERPILLAR TRACTOR CO. Nov. 22, 1955, No. 33379/55. Class 21. [Also in Group XXIX] A fuel tank 10 for vehicles is provided with a venting system preventing the escape of fuel when the tank is tilted, comprising a chamber 15 at the top and rear one end of the tank, a vent line 14 with filter 17 extending from the chamber across the top of the tank, and a vent line 16 extending downwardly from the chamber through the tank with its lower end open to the atmosphere. The chamber 15 has a removable cleaning cover 18.
Patent GB-1110804-A (GB)
Title: Nuclear magnetism well logging method and apparatus
Inventor: BROWN ROBERT J S
IPC: G01V3/32
Filed: 1965-08-04
Abstract: 1,110,804. Gyromagnetic well-logging. CHEVRON RESEARCH CO. Aug. 4, 1965 [Aug. 5, 1964], No.33453/65. Heading G1N. In an apparatus for detecting the presence of oil and water in a borehole by first applying a polarizing magnetic field to the strata and then detecting nuclear magnetic precessional signals from the precessing hydrogen nuclei, substantially as disclosed in Specification 925, 630 the coil that provides the polarizing field is arranged so that one end projects well beyond the end of the detector coil in the direction of movement of the test sonde so that successive portions of the borehole are subjected to the polarizing field for a sufficient length of time before the detector coil reaches them. This enables measurements to be made with a continuously moving sonde. In one embodiment, Fig. 5, the polarizing coil is at 14, and the detector coil at 15, measurements being made as the sonde ascends the borehole. In modifications Figs. 7, 9 and 11 (not shown) the detector coil is placed within the polarizing coil, at right angles to the polarizing coil, or two series connected coils are provided, both being energized during the polarizing interval and the lower one only being used during the detector interval. In all cases the switching from one mode to the other is effected by relays controlled by a motor driven cam, Figs. 3 and 4 (not shown).
Patent GB-933860-A (GB)
Title: Heat hardened rail and heat treating apparatus therefor
Inventor: OKAMOTO TATSUMI
IPC: E01B31/18
Filed: 1959-10-02
Abstract: 933,860. Heat treatment. YAWATA IRON & STEEL CO. Ltd., and DAI-ICHI KOSHUHA KOGYO KABUSHIKI KAISHA. Oct. 2, 1959, No. 33569/59. Class 72. Steel rails are heat-treated by passing the head of the rail through an induction heating device, quenched and then passed through a tempering device, both of the heating devices being arranged to operate only on the top surface, flanks and underside of the rail-head. The process may be made continuous by joining the rails end to end, utilizing jointing plates and the jointing holes in the rails. As illustrated in Fig. 1, the head of rail 1 moves successively in the direction shown through induction heater 2, quench spray 3 and tempering heater 5. Cross-sections of heaters 2 and 5 are shown in Figs. 2 and 3, these being different to ensure that in the tempering stage the metal temperature does not exceed the transformation temperature. In the continuous treatment apparatus shown in Fig. 4, rails 1 connected by jointing plates 8 pass over feed rollers 9, through spring-loaded pinch rolls 11 to hardening and tempering apparatus 13 and then over a series of rolls 10, the angle of inclination of which may be adjusted by screws 12.
Patent GB-1222732-A (GB)
Title: Improvements in or relating to distributors for lubrication systems
Inventor: BUTLER JOHN FRANCIS
IPC: F16N25/04
Filed: 1968-07-15
Abstract: 1,222,732. 732. Hydraulic reciprocating pumps. DOXFORD & SUNDERLAND Ltd., J. F. BUTLER and W. E. HOSEASON. Oct.15, 1969 [July 15, 1968], No. 33706/68. Heading F1A. [Also in Division F2] A lubricant pump is actuated by a cam follower 2 which engages a cam 9. Lubricant is forced from the barrel by piston 14 through duct 15 to an annular passage 108 and thence via duct 109 through a valve Fig. 5 (not shown) to duct 101. The quantity of lubricant dispensed at each shot is adjusted by rotation of member 12 which alters the length of stroke of the piston before the relief passage 13 engages the helical slit 11.
Patent GB-872058-A (GB)
Title: Correction of the printing light in a printing machine for films in colour
IPC: G03B27/72
Filed: 1957-10-29
Abstract: 872,058. Colour photographic printing. DEBR1E, A. V. L. C. Oct. 29, 1957 [Dec. 21, 1956], No. 33783/57. Class 98(2) A method and apparatus for correcting the change of intensity and colour temperature of a printing lamp which occurs with use thereof, as applied to a contact printer wherein light from the lamp is passed as through coloured cylindrical lenses or filters to form beams of primary colours which are reconstituted at the printing window, and for which a previously prepared correcting band is present to regulate each individual primary beam before reconstitution in accordance with the requirements of each scene on the film, as in the manner described in Specification 746,761; comprises, again for each individual primary beam but whereof the features for the blue beam only are shown, diaphragm bands Aa, Ab of Figs. 6, 5 and 8 as of metal which are superimposed in use and in which the windows 1 a , 1b are in part-coincidence so that the upper portions thereof as shown in Figs. 6, 5 freely transmit all of the green and red beams but the lower portions by reason of closure portions 4a, 4b can restrict the passage of the blue beam when one of the windows is slid against the other. Such sliding is effected by moving the pins 11a, 11b of Fig. 8 which are inserted into the holes 7a, 7b of Figs. 6, 5 respectively, the pins themselves being moved by their attachment to nuts 22a, 22b depending on reverse-threaded shaft 18 manually driven from lower end 18<SP>1</SP>. Thus rotation of shaft 18 causes nuts 22a 22b to close or separate as desired and so provide the sliding movement of windows 1 a  1b in the blue light beam of the arrows at the upper right-hand portion of Fig. 8 wherein LB represents the corresponding cylindrical lens, 20 the correcting band and 10 the printing window. An instance of the ageing effect on the lamp quoted is the lowering of the blue values relative to green and red with use, and to correct for this windows 1a 1b at first not fully open are opened more. The long slots at the left of Figs. 6, 5 permit the movement of pins 11a 11b, that of hole 7a in slot B<SP>1</SP> 2  and hole 7b in slot B\. The other slots V 1  V 2  and R, R 2  accommodate pins operating windows for the green and red beams respectively which have closure portions corresponding to 4a 4b but positioned differently.
Patent GB-1299248-A (GB)
Title: Casting machines
Inventor: CARSLEY DONALD
IPC: B22D5/04
Filed: 1970-07-13
Abstract: 1299248 Casting-machines IMPERIAL SMELTING CORP (NSC) Ltd 12 July 1971 [13 July 1970] 33911/70 Heading B3F A casting-machine having a plurality of moulds interconnected to form an endless belt passing around wheels 3 and 4, has a rail 7 located beneath the lower run of moulds so that after a mould has been inverted to discharge a casting therefrom the casting is supported by the rail and is moved therealong by contact with the upturned edges of the mould. When the castings reach the end of the rail 7 they fall on to a shoot 8, becoming inverted in the process. The moulds are filled with molten metal from a trough 5 and then pass through a hood 6 where they are cooled by air and/or water. A hammer or vibrator 6a loosens the castings from the moulds as they pass around the sprocket wheel 4.
Patent GB-777024-A (GB)
Title: Alternating current switch mechanism
IPC: H01H3/60
Filed: 1955-11-29
Abstract: 777,024. Tumbler switches. ARROW ELECTRIC SWITCHES, Ltd. Nov. 29, 1955, No. 34122/55. Class 38(5) A switch comprises a pivoted operating lever, a movable contact carrier biased towards the lever and operable thereby,. and spring means engaging the lever and the housing for biasing the lever into its two end positions, the value of the bias of the spring means being different in the two positions so as to compensate for thebias of the contact carrier. As shown, the latter is a spring blade 14s mounted on a terminal 14 and carrying contacts 14c, 14k co-operating with fixed contacts 12c, 55 of which the latter may be omitted. The lever 20 has trunnions 22 trapped between the base and cover, and has a cam 25 engageable with the spring 14s, it being out of engagement therewith in the Fig. 2 position. A spring 30 is arranged between a part 34 of the handle and a part 41 of a support 40, the part 41 being offset with respect to the pivotal axis of the handle so that the spring 30 applies a lesser force to the handle when the handle moves past the vertical position to the Fig. 2 position than' when moving to the Fig. 1 position. The cam and the spring 14s may have interengaging depressions and projections to give a slow break followed by a rapid separation and, if contact 55 is present, a final slow movement of the contact (Figs. 9-11, not shown). The end movements of the lever are cushioned by bumpers 46.
Patent GB-909095-A (GB)
Title: Improvements in and relating to electric position error measuring systems
Inventor: LAW HILTON
IPC: G05B19/29
Filed: 1957-11-01
Abstract: 909,095. Electric selective signalling systems. ENGLISH ELECTRIC CO. Ltd. Oct. 29, 1958 [Nov. 1, 1957], No. 34179/57. Class 40 (1). In a system for positioning a shaft 11, Fig. 1, in a desired position as specified by signals from a control unit 12, signals representing the actual position of the shaft, produced by a coded scale sensed by brushes 16 and sliprings 15, are compared with the desired position signals by polarized relays 21, 22 and a magnetic amplifier 13 which so controls a motor 10 as to drive the shaft to the desired position. The comparison between the desired and the actual position signals is effected in two stages: the highest two bits are compared independently by relays 21 and 22 and the result of this comparison is applied, together with the lower order bits, via appropriately weighted resistors 18, 24 to the magnetic amplifier. Lead and lag brushes A, B are used in conjunction with the coded scale to remove transitional errors, the brushes being selected by an extra brush C.
Patent GB-301219-A (GB)
Title: Improvements in entertainment devices
IPC: A63H37/00
Filed: 1927-12-19
Abstract: 301,219. Greenhalgh, E. Dec. 19, 1927. Detonating toys.-A toy bomb comprises a shell of paper or other material moulded and coloured to represent a fruit. The interior of the bomb is filled with toys, pith balls or other articles, and contains a burning charge to give a stream of fire and a small bursting charge to disrupt the shell and scatter the contents. A fuse extends to the exterior of the shell and is made to represent a stem.
Patent GB-367030-A (GB)
Title: Improvements relating to the studs or buttons of stocking and like suspenders
IPC: A41F11/04
Filed: 1930-11-15
Abstract: 367,030. Sock &c. suspenders. WALKER, Ltd., T., WALKER, G. T., and WOOD, H. H., Birmingham Buckle Works, St. Paul's Square, Birmingham. Nov. 15, 1930, No. 34399. [Class 44.] The button 1 of a button-and-loop stocking &c. suspender is secured to a back-plate 5 (shown separate, Fig. 5) by tongues 3 integral with the plate, the tongues being passed through the button and their ends 7 bent over to engage a shoulder 10 in a recess 9 in the face of the button. The plate shown is placed in the loop of the tape 12, with the tongues projecting through a hole in the front layer and the button then secured in place. The edges of the tape may be folded over to hide the plate completely. The invention is also described as applied to a back-plate having slots through which the tape is threaded in usual manner. The button may be of oval or circular form, the tongues may pass together through a single aperture in the button, or individually through separate apertures, and more than two tongues may be provided, a form with four tongues being described.