baber/WOPTO huggingface dataset:
Patent GB-1060252-A (GB)
Title: Improvements in or relating to drilling machines
Inventor: BERRY JEAN LOUIS
IPC: B23B41/00
Filed: 1964-09-10
Abstract: 1,060,252. Machine frames; drilling machines. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 10, 1964 [Sept. 10, 1963], No. 37164/64. Headings B3B and B3C. [Also in Divisions F2 and G6] A drilling chamber 2 for irradiated tubes and served by two drill heads 27-28 is surrounded by a three-part lead biological radiation shield l 1 , l 3  and (1 2 ), Fig. 1 (not shown), and connected to atmosphere by a loading chamber 3 fed from an entrance 7 sealed by a rotatable lead drum 5 with a diametral bore 5, transverse to the entrance 7 when the chamber 3 is sealed and rotatable by an external telescopic arm 13 to align the bore 5 1  with the entrance 7 for loading the chamber 3. The irradiated tubes 18 are pulled through the sealing drum 5 on to a cradle 17 by an externally operated rod (24), Fig. 4 (not shown), and the trolley 14 mounting the cradle 17 is moved into alignment with the drilling chamber 2 by an externally operated rod (19). The tube 18 and its cradle 17 are then pushed off the trolley 14 by an externally operatedrod (35) into the drilling chamber 2 which is then sealed off from the loading chamber 3 by an externally operated gate (22). (Fig. 4, not shown). The tube is pushed on to a mandrel 29 which is axially and rotatably movable by means of an external head screwwheel (33) and bevel gears (35), (35 1 ). Before drilling, the chamber 2 is evacuated, which draws the sealing gate (22) on to the end of the chamber. The vertical motor-driven drill arbors (36) of the drill heads 27, 28 bear through a spring thrust bearing. (46), Fig. 6 (not shown), on a non-rotatable drill guide and clamping block (44) so that as the arbor descends under hand power to drill the tube the latter is firmly clamped. The arbors (36) are connected to belt-driven pulleys by screw-threads, allowing axial movement of the pulleys on the arbors. The block (44) is sprung away from the tube 18. Different sized tubes may be accommodated by different sized cradles to maintain the tube centre distance relative to the drill arbors. The gaseous fusion products from the drilled irradiated tubes 18 are led off for analysis. The drill chamber 2 has observation windows (56) and (57), Fig. 1 (not shown), and the front radiation shield (1 2 ) has a corresponding slit (55) and a similar one (54) for the loading chamber 3 with glass viewing blocks.
Patent GB-1434589-A (GB)
Title: Rotary sliding vane vacuum pump
IPC: F04C23/00
Filed: 1973-08-06
Abstract: 1434589 Rotary positive-displacement fluidmachines COMPONETROL Inc 6 Aug 1973 37277/73 Heading F1F To reduce noise a sliding-vane type vacuumpump has an outlet opening 116 formed in a block 54 so as to be only partially closed when a reed  120 is undeflected, the reed being clamped against an upper surface of the block slightly above a lower surface, or "step", 118 intersected by a part of the opening. While the reed is undeflected oil in a reservoir 30 can enter the pumping chamber 58. As shown, the pump may have two rotors 64 in respective chambers, which are connected in series, the rotors being driven by an electric motor 10. The vanes 68 may be spring- loaded. To minimize emission of oil through exhaust apertures 88 a baffle 80 and filter material may be disposed as shown. A plate 26 may be furnished with a handle 130 and back-pressure regulating valve 134.
Patent GB-1412057-A (GB)
Title: Aircraft runway construction
IPC: E01C9/10
Filed: 1973-08-08
Abstract: 1412057 Aircraft runways KENTING EARTH SCIENCES Ltd 8 Aug 1973 [10 Jan 1973] 37654/73 Heading B7G An airport runway intended for use by S.T.O.L. aircraft comprises a support structure 10 carried above a water-containing depression 16 by pillars 15 and formed on its upper surface with longitudinally extending laterally-spaced rails 11 which are spaced and profiled to match tread grooves 20 in aircraft landing wheels 21. To clean the landing surface and to ensure uniform resistance to traction the water level in the depression may be raised above the level of the rails and thereafter it drains back to the depression through the gaps between the bars. Braking or retardation wells 23 are provided at each end of the runway, which has hinged sections 10a capable of being lowered into the wells. A moat 24 is provided along each side of the runway and to retain the water in the flooded condition a barrier 25 is formed round the periphery of the runway and sub-dividing transverse inflatable barriers 19 are provided at each end. Bridges 26 are provided over moats 24 and buoyant balls are laid on the surface of the water to reduce evaporation. The surface of the runway may be inclined from the centre line of the runway to provide a centring effect during aircraft movements. Emergency braking nets may be provided beyond wells 23. The water may have additives to assist in cleaning the runway surface, to prevent freezing or to enable it to be used more effectively for fire fighting.
Patent GB-1130982-A (GB)
Title: Improvements in or relating to telecommunications exchange systems
IPC: H04Q3/42
Filed: 1966-08-24
Abstract: 1,130,982. Automatic exchange systems. SIEMENS A.G. 24 Aug., 1966 [25 Aug., 1965], No. 37865/66. Heading H4K. A multistage switching network, in which each stage is divided into switching frames, TKP11-TKF10 and TKF21 - TKF20, has a control device ST and path seeking circuit W associated with each frame, an allotter Z common to the network effecting connection between the control devices ST in successive stages by way of switch KST, and similarly connecting the path seeking circuits by way of switch KW, so that a common path seeking operation can be conducted across the network in accordance with the route required. The switches KST and KW may be a single switch. The route required by a line, seen to be in a calling condition by a scanner such as S11, is determined by a receiver/sender such as ES11 connected to the calling junction circuit over switch K11. Supplied with sufficient digits, stored in the control device ST11, the common allotter is called in to connect up the appropriate control device and path seeking circuit in the next stage. Path seeking may be done by the examination of stores containing a record of the switch frame idle/busy conditions in which case the network contacts are preferred to be of a latching type. The control devices ST of each stage are such that if one such device fails another can take over the function and control two switching frames. Backward signals may be sent without involving the network proper, the signals being sent via the receiver/senders ES and control devices ST linked by the switch KST.
Patent GB-344923-A (GB)
Title: Improved means for preventing the turning of a nut or bolt
IPC: F16B39/10
Filed: 1929-12-11
Abstract: 344,923. Locking nuts. LYTTLE, J., 1, Lisburn Road, Belfast. Dec. 11, 1929, No. 37955. [Class 89 (i).] A washer 1 having pins 1a fitting in holes in the work 5, has a lug 9 in which is carried a bar 7 engaging the side of the nut. A spring 10, one end of which is secured to the lug, presses the bar to keep a pin 7a in a recess in the washer. Specification 321,615, [Class 89 (i), Bolts &c.], is referred to.
Patent GB-1261197-A (GB)
Title: Contact breaker assemblies
Inventor: PRICKETT ALFRED DONALD
IPC: H01R39/60
Filed: 1968-08-09
Abstract: 1,261,197. Mechanical interrupters. JOSEPH LUCAS (INDUSTRIES) Ltd. 18 July, 1969 [9 Aug., 1968], No. 38070/68. Heading H1N. In an ignition contact breaker the movable contact assembly comprises a contact 15 mounted on the end of a leaf spring 16 which urges it towards a fixed contact (not shown), and an insulating member 11, which provides support and has a cam-follower heel portion 12, has a passage therethrough in which the spring 16 is engaged with a snap fit. The passage has basically the same cross-section as the spring 16, but is relieved at 17 and 18 to allow the riveted contact 15 to pass through during assembly. Resilient inclined tags 19 and 21 lock the member 11 in position on the spring 16. A resilient bridging piece (not shown) may be moulded integral with arms 13 to urge them towards one another when the opening 14 receives a pivot post.
Patent GB-356604-A (GB)
Title: Improvements in circular saws
IPC: A61F15/02
Filed: 1930-12-17
Abstract: 356,604. Circular-saw machines. ZINKE, F., 13, Fischerdorfchen, Torgau, Germany. Dec. 17, 1930, No. 38093. Convention date, Dec. 18, 1929. [Class 145 (ii).] In portable electrically-driven circular saws of the kind having a guard e, Figs. 1 and 3, secured to the housing c and extending beneath the saw a to prevent injury to articles or bodies under the material to be severed, the guard has a leading pivoted toe g to facilitate its insertion beneath the material and enable it to follow irregular contours. The guard is particularly applicable for preventing injury to a patient when the saw is used for cutting a plaster-of-Paris surgical bandage h, Fig. 6. The saw may be directly driven from an electromotor b, the housing c having a detachable wall d, or may be driven through a flexible shaft.
Patent GB-958231-A (GB)
Title: Improvements in or relating to speed control of alternating current motors
Inventor: CLARK GRAHAM MAKERPEACE
IPC: H02P25/28
Filed: 1960-11-07
Abstract: 958,231. Control of A.C. motors. BRENTFORD TRANSFORMERS Ltd. April 13, 1961 [Nov. 7, 1960], No. 38212/60. Heading H2J. [Also in Division G3] An auto-self-excited transductor SR is arranged in the rotor circuit of an induction motor M and has a control winding DC energized by the slip voltage rectified and backed by a constant voltage derived from the A.C. mains. The slip voltage appears across a variable resistor VR by which the motor speed is regulated; the constant voltage appears across a resistor A. Alternatively, the output of a tachogenerator may be used instead of the slip voltage.
Patent GB-864540-A (GB)
Title: Turbine-propeller power units for aircraft
Inventor: BLYTH JACK VALLIS
IPC: F02C7/20
Filed: 1957-12-12
Abstract: 864,540. Aircraft power plants. NAPIER & SON Ltd., D. Dec. 4, 1958 [Dec. 12, 1957], No. 38687/57. Class 4. [Also in Group XXVI] In a turbine-propeller power unit for aircraft a reduction gearing casing carrying various engine driven auxiliaries is constructed as a unit 17 separate from the engine 10 and is provided with means for mounting it in an aircraft independently of the engine. The power unit comprises an engine 10 having an air intake 11, an axial flow compressor 12, combustion chambers 13, a turbine casing 14, and a built-in reduction gearing unit 57. The separate reduction gearing unit 17, Fig. 3, is mounted in front of, and connected by shaft 15 to, the power unit and has an input shaft 18 which drives the output shaft 25 through spur gears 23, 24. Auxiliary equipment requiring a high speed drive such as a cabin air blower 27 and an electric generator 28 are driven from the spur gear 24 which also has internal teeth meshing with gear wheels such as 32 on the shafts of the above equipment. Auxiliary equipment requiring a lower speed drive such as the propeller pitch control governor 29 and the hydraulic pump 30 are driven from the input shaft 18 through gears meshing with a gear wheel 36 on this shaft. The power unit is suspended beneath a wing 38 of the aircraft with the air intake 11 in approximate vertical alignment with an air intake 55 in the leading edge of the wing. The engine 10 is mounted in a ring frame 39 from which the engine 10 is supported by a triangulated frame of struts 43, 44, 45, and from which the separate reduction gear unit 17 is separated supported by similar struts 49, 50, 51.
Patent GB-1179227-A (GB)
Title: Improvements in Knotter Mechanisms for Hay Balers.
IPC: A01F15/14
Filed: 1968-08-15
Abstract: 1,179,227. Knotting mechanism for hay and like bales. SPERRY RAND CORP. 15 Aug., 1968 [16 Aug., 1967], No. 38972/68. Heading D1C. A knotting mechanism, for a hay or like baler, includes a twine finger 72 having a notch forming an eye 88 movable into and out of the path of the needle 20 to the bill hook to receive the twine loop and means for trapping the loop to retain it during tying, the return movement of the finger stripping the tied knot from the bill hook. Twine needles 20 are swung round on a bar 24 mounted on arms 26 pivoted on bale case 10 to pass through openings 12 in the top of the bale case. Another mechanism 30 adjacent slots 12 each comprise a frame 36, supported on a bracket 34 secured to bale case 10, with bearings for a shaft 38 which is rotated rapidly through one revolution by metering wheel 17 acting through trip rod R and one revolution clutch C. A crank arm 42 on one end of shaft 38 is connected by rod 44 to one of the arms 26. The knotter unit 48 and clamping unit 50 of each mechanism 30 co-operate to tie a knot between the end of a strand of twine held by clamping unit 50 and the loop which is carried up past the knotter 48 by the eye 18' of the corresponding needle 20, the loop being engaged by twine hook 52. Bill hook mechanism 54 has a fixed jaw 56 grooved to receive the pivoted tongue 58 having, at one end, a hook like extension and at the other a roller 64 which engages a cam surface 66 in a shell 68 secured to rotatable shaft 70. Each twine finger 72 is pivoted on a bracket 74 on case 10 and has, at its free end, a hook 84 and a pivoted spring- biassed latch 92 pivoted to finger 72 to form eye 88. When needle 20 is raised to its fullest extent, a cam 100 on shaft 38 pivots a lever 104 which through a connecting rod 108 pivots finger 72 to project eye 88 beneath the bill hook. Latch 92 is opened by the loop of twine encircling the bale to receive the strands after which the eye closes. Cam 100<SP>1</SP> and follower 102<SP>1</SP> return fingers 72 to inoperative position, a back lash spring 122 compensating for wear.
Patent GB-333491-A (GB)
Title: Improvements in change-speed gearing
IPC: F16H3/04
Filed: 1929-12-20
Abstract: 333,491. Soc. Anon. des Anciens Etablissements Hotchkiss et Cie. Jan. 14, 1929, [Convention date]. Variable-speed gearing suitable for vehicles comprises aligned driving and driven shafts 3, 6, Fig. 1, a parallel countershaft 20, and a sliding gear element 15 supported upon an eccentric drum 12 secured to the gear casing 1. The eccentric slider 15 has internal teeth 16 always in mesh with a long pinion 4 fast on shaft 1, drum 12 being gapped at 12<a>, Fig. 2, to allow this. A direct-driving clutch 10 splined on shaft 6 is connected by a flange 32 to a groove in slider 15 so as to slide with the latter. Countershaft 20 is constantly driven through pair 4, 21. To obtain direct drive or fourth speed from neutral position of Fig. 1, slider 15 is moved to the right to engage clutch members 10, 11. To bring in third speed from neutral, slider 15 is' moved to the left to bring gear 17 upon it into mesh with internal teeth 18 on gear 27 fast on shaft 6. To bring in second speed from neutral, a slider 22 loose on shaft 20 is moved to the left so as to bring a gear 23 into mesh with a gear 24 on slider 15, and a pinion 25 into mesh with gear 27. For lowest speed, slider 22 is moved to the right into clutch engagement at 28 with gear 21, while a pinion 25<1> meshes with the gear 27. Reverse driving may be effected by connecting gears 21, 27 by idlers 37, 38, Fig. 2; sliding on a second countershaft 35. The three sliding gear sets may be operated through a fork 29, and levers 33, 39 from selector bars engaged singly by control lever 30.
Patent GB-1111593-A (GB)
Title: Improvements in or relating to the securing of sleeves in cylinder bores
Inventor: FIRTH DONALD
IPC: B23P11/00
Filed: 1964-09-25
Abstract: 1,111,593. Cylinder liners. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 6 Sept., 1965 [25 Sept., 1964], No. 39065/64. Heading F2T. [Also in Divisions B3 and F1]  A method of securing a sleeve 6 in the cylinder bore of an I.C. engine &c. having an annular recess 3 comprises deforming a portion 8 of the sleeve radially inwardly, shrink-fitting the sleeve in the bore and then expanding the portion 8 into the recess 3, Fig. 2 (not shown), by inserting a cylindrical punch 9. An inward deformation, Fig. 3 (not shown), may be formed by swaging or passing through a die a sleeve having an external enlargement. Alternatively, a sleeve of uniform thickness, Fig. 5 (not shown), may be formed with a conical reduction at its end. The sleeve may be machined after withdrawal of the punch.
Patent GB-923212-A (GB)
Title: Method of treating zirconium alloys
IPC: C22F1/18
Filed: 1961-11-02
Abstract: Zirconium alloys are rendered corrosion-resistant by heating the alloy to the b -range, quenching to a temperature below the a -b range, and heating to above the recrystallization temperature but not exceeding the a -temperature range while simultaneously working the alloy to reduce its cross-section by at least 30%.  The alloy may be heated to 1800 DEG  F., + 50 DEG  F., and quenched to a temperature below 1500 DEG  F., then heated to 1100-1500 DEG  F. and simultaneously subjected to rolling.  The heating in the b -range may be accompanied by mechanical working, e.g. forging, which may be followed by roll cogging.
Patent GB-393661-A (GB)
Abstract: 393,661. Calculating-machines &c. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.-(Assignees of Christian, R. A. ; 246, Telford Avenue, Dayton, Ohio, and Ens, E. J. ; 240, Sunsett Avenue, Newark, New Jersey, both in U.S.A.) Dec. 12, 1931, No. 34527. Convention date, Dec. 12, 1930. [Class 106 (i).] Operation and item counters.-The operation of the single-step counter is subject to the position of the carriage to count only entries of a predetermined kind or kinds through a driving connection disabled by a carriage-controlled lever. In the form shown in Fig. 1, as applied to the Ellis machine described in Specification 28253/08, [Class 106, Registering &c.], the counter 20 is operated by a spring on its shaft 22 when the arm 26 is permitted to follow the lever 17 rocked by the main shaft 15. Such action is however normally prevented by a latch 34 obstructing a lug 33 on a link 30 pivoted to the arm 26, except when a stop 44 on the carriage tabulator bar 42 rocks a lever 38 so as to disable the latch. In another arrangement, Fig. 3, the link 19 connecting the spring-coupled driving arm 61 with the lever 17 is normally free but may be blocked by an arm 64 linked with the lever 38.
Patent GB-825840-A (GB)
Title: Improvements in or relating to mine-shaft transport systems
IPC: B66B1/50
Filed: 1957-12-18
Abstract: 825,840. Detecting the position of cages in mine shafts. STAMICARBON N.V. Dec. 18, 1957 [Dec. 19, 1956], No. 39392/57. Classes 78 (3) and 78 (4). Strips 15 of non-magnetic material attached to the iron cage or skip 2 of a mine hoist installation are used to vary the voltage in fixed electromagnetic coils 11 and to operate an indicator 14 when the cage is opposite a loading or unloading position. The indicator may be arranged e.g. to release a locking device 10 and/or operate rams 9. The cage may be non-magnetic and the strips 15 of iron. Specification 728,571, [Group XXXVI], is referred to.
Patent GB-1135035-A (GB)
Title: Improvements in and relating to vibrators
Inventor: HUNTER PERCY GEORGE
IPC: E04G21/08
Filed: 1965-09-15
Abstract: 1,135,035. Vibratory mechanisms. FYNE MACHINERY & ENG. Ltd. 2 Aug., 1966 [15 Sept., 1965; 29 Sept., 1965], Nos. 39445/65 and 41380/65. Heading F2X. A vibrator comprises a mass 1 rotatable out of balance in a casing 2 and a plurality of ribs or lobes on a part 7 intermeshing with a different number of channels or recesses in a ring 8, the surfaces of the ribs or lobes being of continuous, curved corrugated form. A drive member 4 mounted in roller bearings 5 is connected by a universal coupling 6 to the part 7 and the vibration frequency is determined by the formula RNp F = , where R is the rotary speed and Nr-Np Np and Nr are the numbers of lobes and channels respectively. The centre 9 of the part 7 traces a truly circular path 10 of diameter K with co-operating surfaces between the parts 7 and 8 moving in rolling relationship without slip or impact, lubricant being held in the cavities between the lobes. In a modified construction, a recess in the mass 1 has channels in its interior surface to mesh with lobes on a member secured to a nose 3 of the casing, the frequency of vibration being determined by the formula RNp F = -The Specification describes a Np-Nr method of determining the geometrical crosssection of the intermeshing parts.
Patent GB-394986-A (GB)
IPC: C06F1/02
Abstract: 394,986. Cutting match splints. RAHE, S. E., 137, Southgate Avenue, Springfield Garden, Long Island, New York, U.S.A. Jan. 5, 1932, No. 325. [Class 145 (i).] Match splints are cut from veneer or other stock by several sets 21, 22 of spaced rotatable blades arranged in alignment to effect successively deeper cuts. The blades may be arranged below the feed table 20 in which case the stock is fed by rollers 16 between scoring knives 17 and is positioned on the stepped end 191 of the said table by a reciprocating suction plunger 29. The severed splints 34 are separated and gripped as shown in Fig. 1c between the end 191 and a similarly stepped plate 37 having a vertical and lateral motion. In a machine for cutting match cards, Fig. 3, the stock is fed between scoring knives 53, 'recessed at 54 to form the selvage, and positioned beneath a suction feed plunger 56 by a sliding portion 52b of the table 52. The cards are then placed on the inclined face of the comb-like end 59 of the feed table 60 and pass beneath progressively deeper cutting blades 21, 22, the selvage 15 remaining uncut. A pressing plate 64 is provided with wedge-shaped teeth 65 to engagesimilar recesses in the end 59 and separate the matches prior to inserting the cards in a dipping carrier 68. Specifications 320,248 and 320,531, [both in Class 145 (i), Wood, Cutting], are referred to.
Patent GB-1446945-A (GB)
Title: Tape transport system
IPC: G11B5/52
Filed: 1973-08-21
Abstract: 1446945 Guiding record tapes; supporting magnetic heads INTERNATIONAL VIDEO CORP 21 Aug 1973 [1 Sept 1972 25 April 1973] 39621/73 Heading G5R [Also in Divisions B8 and G3] The head drum in a helical scan magnetic tape transport system has a revolving part 60 having helical grooves 76 of V-shaped cross-section so as to form an air bearing for the tape. The grooves have a short, substantially radial, leading face and a long trailing face preferably at 88 degrees to a radius. The drum carries two recording heads and an erase head (Fig. 7, not shown) and is readily removable from its driveshaft, electrical connections being by spring contacts 78. The complete drum includes a stationary part 62 having control and other track heads 66, electrical coupling between the two parts being by transformer (80, Fig. 6, not shown). The complete transport includes as bearing support guides, a capstan having grooves to avoid accidental air bearing (for friction drive), an idler wheel to eliminate flutter, and vacuum buffer columns.
Patent GB-1515407-A (GB)
Title: Method of and apparatus for removing finely divided solids from gas
IPC: B01D46/34
Filed: 1975-09-29
Abstract: 1515407 Gas filter COMBUSTION POWER CO INC 29 Sept 1975 [30 Sept 1974] 39800/75 Heading BIT An apparatus for removing solids from gas (e.g. smoke-stacks, cement plants and lime kilns) comprises a housing 1 having a gas inlet 2 and outlet 3; a particulate contact material inlet 5 and outlet 4, two substantially concentric perforated walls 6 and 9 within the housing, the outer of the concentric walls having openings such as to permit passage of a substantial proportion of the contact material therethrough, and means for moving the particulate material filling 14 through the annular space between the concentric walls. In Fig. 4 (not shown) the incoming gas is subjected to cyclonic movement by a deflector 18 Fig. 2 (not shown) in the lower part of the housing. The perforations may be louvres. Particulate material may be cleaned during recycling.