baber/WOPTO huggingface dataset:
Patent GB-482256-A (GB)
Title: Process for the printing of symbols on drawings
IPC: B41M3/00
Filed: 1937-09-20
Abstract: 482,256. Printing processes. HOJRING, A., (trading as ATELIER ELEKTRA VED. A. HOJRING, [Firm of]). Sept. 20, 1937, No. 25506. Convention date, Oct. 3, 1936. [Class 100 (ii)] A method of printing shading lines or other matter on drawings consists in holding the sheet bearing the drawing in a stretched condition slightly above the surface of an inked printing block bearing the shading lines &c., and pressing, with a blunt instrument, those parts of the sheet on which it is desired to print down on to the block so that the lines &c. are printed on the underside of the sheet.
Patent GB-1220389-A (GB)
Title: Catalyst for hydrocarbon reforming
IPC: B01J23/70
Filed: 1968-05-29
Abstract: 1,220,389. Steam reforming catalysts. CATALYSTS & CHEMICALS Inc. 29 May, 1968 [2 June, 1967], No. 25614/68. Heading B1E. [Also in Division C5] Steam reforming of saturated and unsaturated aliphatic hydrocarbons with boiling points below 350‹C is effected in the presence of a catalyst comprising 8-45% NiO on Al 2 O 3 , SiO 2 , ZrO 2 , B 2 O 3 , ThO 2 , TiO 2 , SrO or HfO 2  or mixtures thereof, with minor proportions of oxides of Ba, K, Ca or Mg and with calcium aluminates, clays or cements, the catalyst being so composited that it has a surface area of less than 1 m<SP>2</SP>/gm and a porosity less than 0.25. Examples describe the preparation and use of catalysts containing (1) calcium aluminate cement, NiO and Al 2 O 3  and (2) calcium aluminate cement, NiO, Al 2 O 3  and TiO 2 .
Patent GB-887764-A (GB)
Title: Synchronizing mechanism for internal combustion free piston engines
IPC: F02B71/00
Filed: 1960-07-22
Abstract: 887,764. Free piston engines. BRAUN, A. July 22, 1960, No. 25649/60. Class 7(1). In an opposed-piston free-piston engine which may be for use as a gas generator the synchronizing mechanism comprises a synchronizer rod 12 having spaced apart end portions, and a centre portion and helical tracks 15 on the end portions of the rod, each of the compressor pistons 6, 7 having an aperture to receive an end portion of the rod and track follower means 17 operatively associated with each aperture. The rod may have mounted thereon engine accessory driving means comprising a cam 20. There may be resilient mounting means between the rod and the compressor pistons comprising a mounting bushing in each compressor piston and having a helical track therein mating with one of the helical tracks on the rod and a resilient connection connecting each bushing to its compressor piston. The rod may be provided with an axial bore 19 which may be utilized for the circulation of a cooling medium or as a passage for equalising pressures in the various chambers through which the rod passes. Each helical track 15 may have an angle different from that of the other or the rod may be given a slight axial movement.
Patent GB-997988-A (GB)
Title: An improved condenser
IPC: F28F13/06
Filed: 1964-06-22
Abstract: 997,988. Vapour condensers; heat exchange elements. TRANE CO. June 22, 1964 [July 5, 1963], No. 25701/64. Heading F4S. A condenser comprises inlet and outlet headers 12 and 14, condenser tubes 22 communicating with the outlet header, vapour distributing tubes 26 spaced coaxially inside the condenser tubes, one end communicating with the inlet header and the other being substantially closed, a plurality of orifices 38 in said distributing tubes, some directing vapour towards the outlet header and the others directing vapour in the opposite direction. The two sets of orifices may be arranged in two diametrically opposed longitudinal rows as shown in Fig. 1. The vapour is directed by hoods 44 and scoop portions 50 (Fig. 4, not shown), and is distributed uniformly along the condenser tubes. The distributing tubes are positioned in the condenser tubes by spring clips 28, and fluid seals maintained at the inlet end by bushings 30. Small apertures 34 may be provided in the closed ends of the distributing tubes to release trapped condensate and these tubes may extend into the outlet header 14.
Patent GB-842469-A (GB)
Title: Apparatus for producing internal selvedges on woven fabrics
IPC: D03D5/00
Filed: 1957-08-15
Abstract: 842,469. Selvedge shedding mechanisms. CROOK, J. M. July 28, 1958 [Aug. 15, 1957], No. 25770/57. Drawings to Specification. Class 142(2). Internal selvedges are formed by doup healds carried by two heald shafts actuated by the same tappets as the healds for the plain-weave ground. The doup threads are supplied by spools separated from the warp beam and pass round an easer bar operated by a crank on a half-speed shaft.
Patent GB-488685-A (GB)
Title: Improvements in and relating to the production of a brewers' pitch
IPC: C09F1/02
Filed: 1937-09-23
Abstract: In a process for the production of a brewers' pitch, resin such as fir-root resin or scraped pine resin is distilled under high vacuum, say below 8 mm. or even up to 30 mm. of mercury, and the distillate (which is free from deleterious oxy-acids) is mixed with softening agents.  In a modified process, old brewers' pitch is distilled in high vacuum and the distillate is melted with a distillate from the high-vacuum distillation of a fresh natural resin, e.g. fir-root resin or scraped pine resin.
Patent GB-809779-A (GB)
Title: Automatic assembly apparatus
IPC: H05K13/04
Filed: 1955-09-09
Abstract: 809,779. Assembling electronic apparatus. SYLVANIA ELECTRIC PRODUCTS Inc. Sept. 9, 1955 [Sept. 9, 1954], No. 25902/55. Class 83 (2). Apparatus for sequentially transferring to a plurality of stations 57, Fig. 1, each of which includes a mechanism for performing a particular operation, an article 10, Fig. 7, such as a printed-circuit baseboard for electronic apparatus, Fig. 8 (not shown), having accurately located positioning means 12 thereon or attached thereto, comprises a guide track 55, Fig. 5, along which the articles are moved stepwise by a conveyer 48 and locking means 71, Fig. 7, adjacent each of the stations for engaging in the positioning means 12 on the article and also for controlling the operating mechanism at the station to permit its operation only when the article is locked in its proper position. In the assembly of electronic apparatus, printed circuit baseboards are supplied from a hopper 34, Fig. 1, which is preferably of the kind described in Specification 809,780, [Group XVI]. The boards have additional notches 11, Fig. 7, and a reciprocating spring- loaded pivoted finger 48, Fig. 1, engages within the notch of the lowest board in the hopper and moves it along the track 55 which is defined by rebated guide rails 63, 65, Fig. 5, of which the rail 65 is laterally adjustable. A plurality of these spring-biased fingers 48 are pivotally mounted on a longitudinal bar 66 for engaging in the notch 11 of each successive board along the track; alternatively the number of fingers 48 may be less than the number of boards on the track whereby some boards will be pushed along by engagement with adjacent boards. The finger bar 66 is releasably connected at 67, Fig. 1, to the operating bar 44 of the first finger 48 and bar 44 is connected at 45 to the piston rod 24 of a double-acting air motor 22. Adjacent each station 57 is a spring-loaded locking pin 71, Fig. 7, having its end 74 adapted to engage within the recess 12 in the board 10. The pins are retracted by cam bars 76 with cam surfaces 78 engaging roller followers 80 on the pins; the separate cam bars are connected together by rods 91 for reciprocation by a double-acting air motor 23. Each finger 71 also controls a switch 88 in the control circuit of the operating mechanism at its station 57, through a bell crank lever 85 mounted on an adjustable fulcrum 86 and co-operating with a cam surface 90 in the finger. When the finger is engaged within the recess 12 the switch is closed to permit the operation to proceed. The movements of the two air motors 22, 23 control limit switches for determining the various movements of the conveyer and locking pins, and also the working operation. A control circuit, Fig. 9 (not shown), is described. The positioning means 12 may alternatively be provided on a frame on which the article 10 may be supported for movement along the track.
Patent GB-692368-A (GB)
Title: Manufacture of derivatives of alkylene imines
IPC: C07D203/08
Filed: 1950-09-19
Abstract: Nitrogenous compounds made by reacting an a ,b -alkylene imine in the presence of an alkali metal with a hydrocarbon containing conjugated double bonds may be converted, with the aid of catalysts, into polymerization products.  Examples of such compounds are N-(b -phenylethyl)-ethylene imine, N-butenylethylene imine and N - (b  - phenylethyl) - 1,2 - propylene imine.  1,1 - Dimethylethylene imine also is specified as a suitable imine and isoprene, divinylbenzene, vinylnaphthalene and cyclooctatetraene are alternative hydrocarbons having conjugated double bonds.ALSO:Nitrogenous compounds are made by reacting an a ,b -alkylene imine in the presence of an alkali metal with a hydrocarbon containing conjugated double bonds.  In examples: (1) N-(a -phenylethyl)-ethylene imine is obtained by adding sodium and styrene to anhydrous ethylene imine; (2) N-butenyl-ethylene imine is made by adding butadiene and sodium to anhydrous ethylene imine; and (3) N-(b -phenylethyl)-1,2-propylene imine is made by adding styrene and sodium to 1,2-propylene imine. 1,1-Dimethylethylene imine also is specified as a suitable imine and isoprene, divinylbenzene, vinylnaphthalene and cyclo-octatetraene are alternative hydrocarbons having conjugated double bonds.
Patent GB-189593-A (GB)
Title: Improvements in drawing compasses
IPC: B43L9/02
Filed: 1921-10-03
Abstract: 189,593. Schoenner, G. Oct. 3, 1921. Compasses and dividers.-To facilitate opening compasses of the type in which the shanks are of angular section, each of the shanks 5 is cut away on its inner edge 8 so as to leave a space between the shanks when the compasses are closed. Each shank is shaped in one operation by the use of a single milling cutter.
Patent GB-686622-A (GB)
Title: Spindle for use in textile machines
Inventor: WOOD EARL STEWART
IPC: D01H7/08
Filed: 1950-10-26
Abstract: 686,622. Spindle apparatus. WHITIN MACHINE WORKS. Oct. 26, 1950, No. 26169/50. Class 120(ii) A spindle for supporting and rotating a yarn carrier comprises a one piece steel blade 20 having an enlarged upper end portion 25; a barrel portion 21 which has a recess 24 in its lower end portion in which the enlarged upper end 25 of said blade is received and firmly engaged, said barrel engaging and centering a yarn carrier at its upper end only; and a driving whirl 22 which has an upwardly extending sleeve 28 which encircles and firmly engages the lower end portion of the barrel 21, the sleeve 28 being of greater outside diameter than said barrel, whereby said sleeve encloses and reinforces the lower end of said barrel and loosely centres the lower end portion of the yarn carrier and whereby said sleeve holds said lower end portion of the yarn carrier spaced away from the said barrel. The barrel may be made of aluminium, magnesium or like metal in which case its upper end is provided with a protecting cap of wearresistant material. In another embodiment the barrel 21 is replaced by a thin walled steel tube having a bush fitted inside its lower end, said bush engaging the enlarged portion 25 of the blade 20. The upper end of the tube in this case is closed with a suitable cap member.
Patent GB-907889-A (GB)
Title: Improvements in or relating to pneumatic tyres for automative vehicles
IPC: B60B25/20
Filed: 1959-07-30
Abstract: 907,889. Pneumatic tyres. PIRELLI S.p.A. July 30, 1959 [Sept. 6, 1958], No. 26171/59. Class 144 (2). A pneumatic tyre has unbladed edge portions 4, 5, each bonded to one or more annular metal members 6, 7 with the carcase plies 3a, 3b extending into the bonded edges, the members 6, 7 together forming a tyre-supporting rim member which can be bolted, by means of radially inwardly extending end flanges 8, 9 to a wheel body web 10. As shown, the tyre edges, including at least one of the carcase plies, extend along and are bonded to the full length of the flanges 8, 9 and serve to seal the tyre when bolted to the wheel body. Alternatively, the tyre edges may be bonded to the outside of the members 6, 7 and a sealing gasket disposed between the flanges 8, 9. For large tyres, two or more members 6, 7 may be bonded to each tyre edge with the carcase plies distributed between the members. For greater adhesion, the members 6, 7 may have serrated surfaces, and to avoid localized flexion stresses in use the members 6, 7 are of curved form and may be extended by wings 23, 24, Fig. 4, of polyamide material. Specification 699,376 is referred to.
Patent GB-666404-A (GB)
Title: Improvements in photographic cameras
IPC: G03B13/20
Filed: 1948-10-07
Abstract: 666,404. Range-finders. BOLSEY, J. Oct. 7, 1948 [Oct. 11, 1947; Oct. 5, 1948], Nos. 26215/48 and 26216/48. Classes 97 (i) and 98 (i). In a photographic camera which comprises a range-finder of the kind including a fixed mirror and a mirror which is rotatable with axial displacement of the lens for focusing, a helical slot in a member rotatable about the lens axis engages a pin which is secured to the lens mount and projects radially therefrom through a slot parallel to the lens axis and engages lever means on which the adjustable mirror is mounted, the arrangement being such that adjustment of the rotatable member effects simultaneously axial movement of the lens and rotation of the adjustable mirror. The range-finder in the camera shown comprises a plate 72 which is adjustably mounted in the body of the camera by pin and slot. connections 73, 74. Pivoted at 83 on the plate 72 is a lever 82, a lug 84 on which engages a pin 85. This pin is carried by the lens mount of the camera and projects through an axially extending slot in a fixed member and a helical slot in a member rotatable about the lens axis. Rotation of the latter member thus causes focusing movement of the camera lens and also rotates the lever 82. The end 86 of this lever contacts a lever 76, pivoted at 75 to the plate 72, spring urged at 81 and carrying a range-finder mirror 77, so that rotation of lever 82 causes adjustment of the range-finder mirror 77. The range-finder also includes a fixed mirror 89 carried by the plate 72 and the two mirrors lie opposite light entrance apertures in the camera front. The fixed mirror 89 may be partially transparent or may be fully " silvered " and of a size less than the aperture associated therewith so that the object can be seen directly through said aperture at the same time as it is viewed by reflection at the mirrors 77, 89. In order to compensate for camera lenses of different focal lengths, the levers 76, 82 may be slotted at 102, 108 respectively and each slot may have a conical tapping 103 or 109 engaged by a conical screw 104 or 110, whereby the levers may be bent. The rangefinder may be housed in a camera body as described in Specification 666,405 and this body may include film feed mechanism of the kind described in Specification 666,406.
Patent GB-461018-A (GB)
Title: Improvements in or relating to oven-doors
IPC: F24C15/04
Filed: 1935-09-23
Abstract: 461,018. Inspection windows for stoves. MAIN, Ltd., R. & A., and WORTLEY, G. W. Sept. 23, 1935, No. 26350. [Class 28 (i)] The door of a gas or like cooking- oven comprises as a unit a door frame 17, 18, two sheets 10 of toughened glass or other heatresistant, transparent material, means such as members 12 for spacing the sheets apart, means such as a frame 11 for clamping the sheets together to form a sub-unit, and means for securing the sub-unit in the door frame. The parts 17, 18 of the door are bolted together so that flanges 19 engage the frame 11. The recess between the parts 17, 18 may be provided with locating abutments. The frame 11 is of channel section and may be in one piece of resilient metal sprung over the sheets or comprise two L-shaped parts secured together by lugs on each part screwed to the other part. The spacing members 12 may consist of resilient sheet metal parts of U -shape section and may constitute an encircling frame or a number of such members may be fixed at intervals to the frame 11. The members 12 carry flanges 13 engaging the edges of the sheets and lying against the bottom 14 of the frame 11. Sealing- material may be provided between the various joints.
Patent GB-628699-A (GB)
Title: Improvements in helicopters
IPC: B64C1/00
Filed: 1947-10-01
Abstract: 628,699. Helicopters. CIERVA AUTOGIRO CO., Ltd., and PULLIN, C. G. Oct. 1, 1947, No. 26512. [Class 4] The torque-reaction compensating tail rotor of a helicopter is adjustable about a longitudinal axis for trimming the aircraft, the arrangement being such that displacement in either sense from its neutral position is accompanied by an increased thrust such that the horizontal component remains substantially constant. In the construction shown, the blades 5 of the tail rotor are adjusted in pitch by an axiallydisplaceable rod 23 which may be moved by pilotcontrolled cables 31 passing around a pulley 30 on a shaft 29 formed with a screw-threaded portion 27 engaging a fixed sleeve 28. The propeller is driven by shafts 6, 11 through bevel gearing 9, 10, and is carried by a casing 8, 8a, the latter of which may be rotated about the axis O-O of the shaft 11, to vary the direction of thrust, by wormgearing 19, 20 operated by chain-and-sprocket 15, 16. The rod 23 is connected to the shaft 29 by a joint 25 displaced from the axis O-O, whereby rotation of the casing 8, 8a results in axial displacement of the rod 23 to effect the desired variation of pitch of the blades 5. Alternatively, the thrust may be varied by adjusting the speed of the tail propeller without altering the blade pitch.
Patent GB-816963-A (GB)
Title: Improvements in or relating to capacitor assemblies
Inventor: LEE EDWIN CHARLES
IPC: H01G4/38
Filed: 1956-08-30
Abstract: 816,963. Multiple capacitor systems. STANDARD TELEPHONES & CABLES Ltd. Aug. 23, 1957 [Aug. 30, 1956], No. 26521/56. Class 37. A capacitor unit 1 comprises a sealed metal box, containing a number of impregnated rolled paper capacitors immersed in oil, with terminals at the top contained in a tray 3 the walls of which fit inside another tray 6 formed on the base of a similar unit 2. Fig. 1 shows how the units 1 and 2 may be connected together, the tray 3 fitting within the tray 6 and being retained by bolts passing through registering holes. A number of units may be connected together to form a stack. Leads from the terminals inside the tray 3 may be brought out through registering holes 12, 13 and led to busbars 18 mounted on insulating strips 19. A cover 14 protects the leads and a similar cover may be fitted on the other side of the stack for symmetry. On the top unit a bus-bar housing 16 is fitted having an extension 20 to provide a mounting for the termination of sealed cables to the bus-bars. In Fig. 3 (not shown), a number of stacks are placed side-by-side to form a multiple unit; the bus-bars and their housing being extended to cover all the stacks; and each bus-bar being mounted upon a plurality of insulators.
Patent GB-640182-A (GB)
Title: Improvements in agricultural mowing machines
IPC: A01D34/26
Filed: 1947-10-01
Abstract: 640,182. Agricuiltural mowers. BAMFORD, 'C. J., and BAMFORD, H. V. Oct. 1, 947, No. 26548. [Class 6(iii)] An agricultural mowing-machine of the kind having a cutter extending laterally intermediate the front and rear wheels 11, 12, of a tractor comprises a rear shaft 48 laterally offset in relation to the longitudinal centre - line of the tractor and driven by belt and pulley mechanism from the power take-off shaft of the tractor, a forward shaft 24 mounted on the mowing machine frame and having a crank 25 for driving the cutter, and a shaft 28 connecting the two shafts by universal joints. As shown the mower frame comprises a channel 18 having a roller which co-operates with a spring- loaded latch bar 37 mounted on the tractor frame 17 which allows the mower to pivot about a vertical axis when the cutter hits an obstruction. A lever 56 connected by a cable 58 to the mower regulates the angle at which the cutter meets the crop. A lever 57 is connected to a cable 61 which passes over a pulley 65 to a linkage on the mower for raising the cutter bar from the ground. When lifting the cutter the lever 57 passes through a dead-centre position and is self-sustaining without a quadrant.
Patent GB-1056366-A (GB)
Title: Integrating means
Inventor: WILLIAMS HAROLD LLEWELLYN
IPC: G01G11/02
Filed: 1965-06-23
Abstract: 1,056,366. Integrating weight. MERRICK SCALE MGF. CO. June 23, 1965, No. 26561/65. Headings G1J and G1W. Apparatus for integrating a variable load travelling at a variable speed comprises a frame 37, 41 pivotally mounted in uprights 33 to tilt from the vertical in proportion to the load on a weigh belt, a disc 43 on a shaft 45 rotatable in bearings in the sides 41 of the frame, rollers 47 on shafts 48 press fitted in slots 49 in recesses 44 round the periphery of the disc 43, and a pair of hard rubber rolls 64 press fitted to shafts 65 rotated in bushings 66 in sleeves 67 by pinions 84, 73, and bevel gears 78, 79 driven by chain and sprocket at a speed proportional to that of the weigh belt, whereby, through frictional contact with the rollers 43, the rolls 64 rotate the disc 43 at a speed proportional to the product of the load and its speed and a counter 52 driven through bevel gears 50, 51 registers the integral of the load with respect to time. The instantaneous load on the weigh belt is applied through a compound lever system to a self-balancing beam which tilts the frame through a link 59 pivoted by a universal coupling 58 to a block in a recess in an arm 53 screwed to one end piece 37 of the frame, the block being adjustable by turning a screw with a knob 63. The frame is statically balanced by a weight on a shaft 88 screwed into a ring 90 slidable on any extension 91 of the other end piece 37. After adjustment the weight is locked on the shaft 88 by a set screw and turned through a right angle to turn the shaft 88 so that its conical end enters an annular grove 92 to lock the ring 90. Graduations 85 on the disc 43 co-operate with a stationary pointer 86. Frictional contact between the rollers 47 and rolls 64 is ensured by a spring 71 interconnecting the sleeves 67, which have sleeve plates 68 with projecting pintles 69 pivotally supported in brackets 70 in the base 31.
Patent GB-535191-A (GB)
Title: Improvements relating to brake mechanisms
IPC: B61H5/00
Filed: 1939-09-30
Abstract: 535,191. Disc brakes. TOMLINSON, A. V. (Aikman, B. S.). Sept. 30, 1939, No. 26923. [Class 103 (i)] A housing 25 for the braking elements of a disc brake for railway trucks is supported on the outer side of the wheel 15 by an annular portion 26 bearing by means of a resilient bushing 27 on a hub 28 projecting from a support member 29, which encircles the part 17 of the wheel axle 13 and is secured to the journal box 12. The rotary elements 35 are carried by a cylindrical part 23 of a rotor 20 rigidly and removably secured to the taper part 18 of the wheel axle 13 and are formed with a groove 53 through which air is caused to flow by means of scoops 50 when the vehicle is in motion. The rotary elements 35 and the non-rotary elements 36, which are secured in the housing 25, are pressed into contact to effect braking by a nuid-preasure actuated piston 58 provided with return spring pistons 67.