baber/WOPTO huggingface dataset:
Patent GB-514007-A (GB)
Title: Improvements in or relating to method and apparatus for fabricating structural elements
IPC: B23K9/025
Filed: 1938-04-25
Abstract: 514,007. Uniting by fusion. SUN SHIPBUILDING & DRY DOCK CO. April 25, 1938, No. 12390. Convention date, April 23, 1937. [Class 83 (iv)] In making welded structural elements comprising a number of abutting plates carrying shapes or stiffening members, particularly for bulkheads, bottom and side shells and deck plating panels for ships, one or more shapes are first positioned on and then tack welded to a horizontal plate, which is thereupon moved on to a tilting table where the shapes are welded to the plate, whereupon the plate is advanced to another welding apparatus which butt welds the plate to a second plate after the latter has been similarly preformed and advanced into relation with the first plate. The plates 4 are moved along a bed provided with castors 2 over a beam 12, a stiffener 3 is inserted and a number of counterweighted heads 7 carried by pneumatically or hydraulically operated piston rods 6 are lowered on to the edge of the stiffener to hold it roughly in alignment on the plate. Each head has a central flange 8 and a pair of stop pins 11 in alignment with the flange, and the stiffener is pressed against these elements into proper alignment by a screw 10 operated by a ratchet wrench. The stiffener is then clamped by the heads 7 and tack welded to the plate at a series of points 13. After a number of stiffeners are tack welded thereto, the plate is moved to a table 14, the upper surface of which is level with the head. The plate is secured by clamps 26 to the table, which is thereupon tilted by a motor 19 through worm and segmental gear and the stiffeners are in turn fillet-welded on one side to the plate by a vertically adjustable arc welding head 15 which is carried by a trolley 21 traversed. on rails 22 on a gantry 16. The gantry runs on rails on each side of the table so that it may be positioned over each joint in turn. The trolley carries. a reel 24 of welding wire and flux tank 23. After welding one side of each stiffener the table is tilted in the other direction and the other side welded. The table is then brought to horizontal position and the plate transferred to the apparatus C so as to abut against a similarly prepared plate. The plates rest on beams 31 and are levelled by supports 32 adjusted by screw jacks 33, the joint resting on a copper bar 45 placed on sand contained in a channel bar 47 provided with a pneumatically inflated hose 46, the channel resting on a beam 48. To sets of bifurcated clamping blocks 30 are forced down by pneumatically or hydraulically operated rods 29 so as to clamp the plates, which are thereupon butt-welded by welding head 34, similar to that previously described and mounted on a trolley 36 traversed in either direction on rails on a bridge from which the cylinders are suspended. The trolley carries also a suction fan connected by a tube to a head following the welding head so as to return surplus flux to the tank. For a bulkhead transverse stiffeners may also be used and these may be welded to the plates by hand.
Patent GB-589389-A (GB)
Title: Sheet delivery mechanism for printing presses and kindred machines
IPC: B65H29/04
Filed: 1944-06-29
Abstract: 589,389. Sheet-delivery apparatus. BELLUCRE, F. R. June 29, 1944, No. 12400. [Class 100 (i)] Sheet-delivery apparatus for printing or other machines designed to receive sheets at press speed and advance them slowly through a treatment zone, e.g., a heating or drying unit, prior to them being deposited on a pile table, includes a device carrying the sheets edgewise to another device carrying the sheets in a dependent position, the sheets being tramsferred from the first device to the second device by an independent gripper member moving in a path which at one point coincides with a part of the path of the first carrier, and subsequently intersects the path of the second carrier. As shown, the sheets S are taken from the machine by grippers on endless chains 8 moving at press speed and are transferred therefrom to grippers 15 on slow-speed endless chains 12 by suction grippers 25. Adjacent to the grippers 25 and as they approach a sprocket 9 the chains 8 are guided around a relatively sharp bend 11 with the path of the sheet-engaging parts of the grippers thereon moving on a radius less than the chain pitch line so as to slow down the sheets at that point, and facilitate their transfer to the grippers 25. The latter are given a "figure of eight" movement so that the sheet edge is pushed between the jaws 20, 21 of the grippers 15, one jaw 20 being fixed and the other 21 being spring- actuated. Two sets of grippers 25 taking alternate sheets may be provided. The sheets suspended from the grippers 15 pass slowly over a treating unit before being deposited on a pile 28, the grippers being opened by a cam 31 engaging a roller 23 on the jaw 21. The trailing ends of the sheets are supported by a cross-shaft 30 adjacent to the pile 28. When the pile 28 is full, delivery is switched. to a second pile 29 by rotation-of a handle on a shaft 37 manipulation of which renders the cams 31 inoperative and simultaneously moves gripper-opening cams 32 adjacent to the pile 29 to operative position. At the same time. the shaft 30 is rotated by gearing from the shaft 37 so that by means of cables 36 a curtain 33 wound on a roller 34 is pulled across the top of the pile 28. The chains 12 are guided by tracks 16 which can be adjusted as regards spacing by a hand-shaft 18 through rack-andpinion mechanism 19. If the sheets are relatively stiff, it is necessary to avoid abrupt bending thereof and for this purpose the members 44, Fig. 5, carrying the grippers 20, 21 are pivoted to the chains 12 and spring-held in normal position so that the sheets are suspended vertically. Adjacent to the pile 28, cams 48 engage rollers 47 on the members 44 to rotate them so that the sheets can pass to the pile without bending.
Patent GB-1071945-A (GB)
Title: Improvements in or relating to bracelets or the like and a method of making same
Inventor: WALKER KENNETH CECIL
IPC: A44C5/10
Filed: 1965-03-24
Abstract: 1,071,945. Bracelets. DAVID SHACKMAN & SONS Ltd. March 4, 1966 [March 24, 1965], No. 12418/65. Heading A3H. [Also in Division B3] The invention comprises a bracelet and a method of making a bracelet. The bracelet consists of a series of main links 1 connected by U-shaped links 2. The main links 1 comprise a pair of rectangular, hollow members integrally connected by end transverse pieces 4. Adjacent links are connected by bending the legs of the U-shaped connecting link 2 round adjacent bridging pieces 4. The method of making the bracelet comprises producing a continuous strip of blanks separating the blanks from the strip and bending to form a pair of rectangular, hollow members 3 connected together at the ends by transverse pieces 4 adjacent transverse pieces of two links being connected by bending the U-shaped connecting links 2 round them.
Patent GB-353870-A (GB)
Title: Improvements relating to the manufacture of plates, section pieces or the like from phenol-formaldehyde artificial resins
IPC: C08J5/00
Filed: 1930-04-22
Abstract: To enable plates of artificial resin to be cut by machines analogous to those used in cutting celluloid, the liquid resin is poured on to a support which is arranged in a mould and has a surface into which the resin penetrates, thus becoming intimately combined therewith on solidification.  After a heat treatment to transform the resin into the intermediate stage at which it can be cut, the support is removed from the mould and the block is cut at a raised temperature by machines of the type referred to.  Various types of support are described, including wood connected to a metal base, or wood or metal covered with wire-netting or other material for producing surface irregularities.  A block of artificial resin itself may serve as the support, the liquid resin softening and penetrating the surface in this case.  A wooden block coated with resin from a previous operation may also be used.  Preferably the cutting is performed immediately after the moulding, the residual heat being then sufficient to maintain the article at the cutting temperature.
Patent GB-1088523-A (GB)
Title: Superconducting materials and methods of heat treatment for the same
IPC: H01L39/24
Filed: 1965-03-24
Abstract: A superconducting alloy composed of 25 to 50 atomic % Nb, 10 to 70 atomic % Ti and 5 to 40 atomic % Zr is heat-treated to increase its critical current by heating it to 800 DEG C. for 3 hours, rapidly cooling the heated alloy (e.g. water quenching) to form at least partly a martensitic structure and cold-working (e.g. -drawing) the cooled alloy.  The cold-worked alloy may be further heat treated at 500 DEG C. for 1 hour, then water quenched.  The above heat treatment follows a homogenizing treatment at 1200 DEG C. of bars drawn from cast ingots, and cold-drawing after slow cooling.
Patent GB-1021146-A (GB)
Title: Improvements in or relating to devices for feeding a load through an ignitron
IPC: B23K11/24
Filed: 1963-03-29
Abstract: 1,021,146. Control systems for electric welding apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 29, 1963 [April 2, 1962], No. 12549/63. Heading H2H. In a circuit comprising a pair of reverse parallel connected ignitrons for feeding an inductive or light load from an alternating current supply, re-extinction of the ignitrons due to insufficient load current is avoided by an auxiliary circuit comprising a capacitor shunted by a resistor with an asymmetrically conductive device connected in series with the resistance/ capacitance combination. Fig. 2 shows a welding transformer 1 supplied from an alternating current source 3 via ignitrons 5, 6 in parallel opposition, triggered by pulses of adjustable phase supplied via thyratrons 6, 8. On the halfcycles during which ignitron 4 is fired, the rate of build up of load current is increased by capacitor 10, charged resonantly via rectifier 16 and inductor 18. Capacitor 11, charged via rectifier 17 provides a similar action during the other half-cycles when ignitron 5 is in use. The natural frequency of inductor 18 and capacitors 10, 11 should be several times the supply frequency and the circuit should be over critically damped. In Fig. 1 (not shown), the function of rectifier 17 is undertaken by thyratron 8 and inductor 18 is omitted. In Fig. 3 (not shown), the thyratrons 6, 8 are coupled to ignitrons 4, 5 via inductor/rectifier arrangements as described in Specification 927,324.
Patent GB-739378-A (GB)
Title: Improvements in or relating to rotary offset printing
Inventor: RANDALL JOHN WILLIAM
IPC: B41F9/01
Filed: 1952-05-19
Abstract: 739,378. Rotary printing machines; feeding sheets. DICKINSON & CO., Ltd., J. June 29, 1953 [May 19, 1952], No. 12591/52. Classes 100 (1) and 100 (2). A printing machine adapted to print a pattern or design over the entire surface, e.g. of an envelope, comprises an intaglio or gravure forme cylinder 1 co-operating with an offset printing cylinder 2 so as to transfer an inked impression exceeding in overall size the size of the surface of the envelope, an impression cylinder 3 co-operating with the offset cylinder and mounted to rotate m a bath 7 containing printing ink solvent and co-operating with a doctor blade 9 so that the working surface of the impression cylinder is cleared of the ink deposited thereon by the offset cylinder and marking of the other side of the following envelope is thereby prevented. The envelope back is printed as it passes between the cylinders 2, 3, the marginal portion of the inked impression being transferred to the surface of the cylinder 3 and washed off as described above. The printed envelopes are passed by rollers 30 to a suction cylinder 28, of known form, carrying them round to a conveyer for stacking. The solvent 8 consists of or includes the liquids known as " Xylol " or " Toluol " or other distilled coal tar or petroleum fraction or trichlorethylene. To withstand these solvents the normal rubber or rubber-like surfaces of the impression and offset cylinders are protected by a thin coating of polyvinyl alcohol, polyvinyl chloride, polyethylene or other suitable synthetic plastic material. Alternatively, the impression cylinder may be chromium plated and the co-operating offset cylinder is provided with a gelatine coated transfer blanket. Feeding sheets.-The envelopes E are fed from a tray 12 by a suction cylinder 13 and forwarded over an inclined grid 18 to rollers 24, 25 by pusher fingers 23 mounted on a conveyer chain 19 passing over pulleys 20, 21, 22. Part of the circumference of the roller 24 is cut away and this roller is driven to rotate in timed relation to the rotation of the offset cylinder so that the envelope is received from fingers 23 of conveyer 19 and forwarded through further forwarding rollers 26, 27, to the printing couple in substantially correct register with the inked impression on the offset cylinder. The pusher fingers 23 can be advanced or retarded to suit the length of the envelopes being fed so that the leading edge of the envelope always occupies the same position in relation to the roller 24 which may engage the envelope only slightly behind the leading edge.
Patent GB-811819-A (GB)
Title: X-ray unit
IPC: H05G1/06
Filed: 1957-04-17
Abstract: 811,819. X-ray apparatus. SCHULMEISTER. G.m.b.H. April 17, 1957 [April 26, 1956], No. 12591/57. Class 98(1) In a unit, which consists of an X-ray tube and a high-voltage transformer, the transformer has moulded around it a plastic body which carries and preferably encloses the X-ray tube, and which defines at least the major part of the outer boundary of the unit. As shown, the secondary winding 9a of the transformer is embedded in a mass 2 of plastic material such as an ethoxyline or other synthetic resin, which may be cast in a mould in a vacuum container. A radiation-absorbing substance, e.g. bismuth trichloride, may be mixed with the resin, and the mass may have a conducting coating and may be laminated. A cavity 4 formed in the plastic mass houses the X-ray tube 3 and has an exit window 5 for the radiation. The cavity 4 is filled with oil, and is closed by caps 7 with rubber gaskets 8, which may be removed for replacement of the X-ray tube. A laminated iron core 10, surrounded by the primary winding 9, passes through the plastic mass and the secondary winding 9a. The plastic mass, containing the secondary winding and housing the X-ray tube, is rotatable on the core 10, which may be rotatably mounted on a trunnion 12.
Patent GB-129149-A (GB)
Title: Improvements in or relating to Steering and Braking Mechanism for Aircraft.
Inventor: NAVARRO JOSEPH GEORGE
IPC: B64D27/02
Filed: 1918-08-02
Abstract: 129,149. Navarro, J. G. Aug. 2, 1918. Stopping way. - In braking- mechanism for aircraft comprising two-leaved elevators or rudders adapted to be moved together for steering or to be opened out for stopping way, the rudder-bar for controlling the surfaces is made in two parts g, h pivoted together at j and normally locked by a catch k so as to be operated as a single rudder-bar for steering. By releasing the catch through Bowden mechanism, the parts g, h may be pushed backwards about the pivot i so as to open the rudder surfaces a, b for stopping way. The surfaces a, b are formed with arms d acted on by a closing-spring e.
Patent GB-378379-A (GB)
Title: Improvements relating to connecting or jointing means for frames and boxes such as horticultural frames
IPC: A01G9/20
Filed: 1931-04-29
Abstract: 378,379. Boxes and bins. HUTCHINSON, L. G., Ridgecroft, Marley Lane, Battle, Sussex. April 29, 1931, No. 12632. [Class 18.] Boxes, metal bins, or the like have the side and end members formed as single units and detachably connected together by hidden fastenings. The frame members are formed of L-section bars bf and tongue members f<1>, f3 are pressed out of contacting surfaces of the frame members to lie parallel with those faces, the frame members being then held together by the tongue of one member engaging behind the corresponding tongue of the adjacent member. The bottom frame members of the frame are stiffened by stays s. The frame members are filled in with sheet metal or other suitable material b.
Patent GB-1338863-A (GB)
Title: Navigation receiver for use in a low frequency navigation system
IPC: H03L7/00
Filed: 1972-03-17
Abstract: 1338863 Radio navigation BENDIX CORP 17 March 1972 [31 March 1971] 12636/72 Heading H4D  A phase-comparison radio navigation receiver for sequential signals on the same carrier frequency f<SP>1</SP> comprises a first mixer 16 converting them to a frequency f<SP>11</SP>>f<SP>1</SP> followed by a second mixer 24 converting the signals at f<SP>11</SP> to square waveform at a frequency f<SP>111</SP> <f<SP>1</SP> and thereafter a phase comparator. The embodiment is a receiver for the "Omega" system. All internally-generated frequencies are derived from a single master oscillator (40, Fig. 3, not shown); frequency drift tends to be selfcompensating. As the phase measurement is on an intermittent and generally noisy signal, longterm phase averaging is by a phase tracker utilizing a phase-locked loop (see Division G4), an individual digital memory being provided for each station to be received, Figs. 6, 7 (neither shown). The phase tracker is time-shared by the memories.  Lane determination.-A lane counter (244, Fig. 9, not shown) maintains a running count; when the position of the receiver is known the corresponding lane is entered, manually, into the lane counter.
Patent GB-333224-A (GB)
Title: Improvements in the manufacture and production of motor fuels
IPC: C10L1/06
Filed: 1929-04-24
Abstract: 333,224. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). April 24, 1929. Motor spirit.-Non-knocking motor fuels are made from motor fuels having a tendency to knock (other than those obtained by destructive hydrogenation of carbonaceous materials) by blending with liquid products of the destructive hydrogenation of mineral oil or of the crude distillates of mineral coal in an amount sufficient to suppress knocking. An addition of 5-50 per cent by volume, and usually of 10-20 per cent, of the destrucive hydrogenation product is suitable; the fractions boiling between 100‹ C. and 200‹ C., and especially between 130‹ C. and 180‹ C., may be used. Other anti-knock agents such as benzol, iron carbonyl, lead tetraethyl, methanol, ethyl alcohol, aniline, methylamine, and the like may be added. In examples, (1) an American mid-continent straight run gasoline of specific gravity 0.740 and boiling up to 180‹ C. is mixed with 20 per cent by volume of a fraction boiling up to 200‹ C. obtained by destructive hydrogenation of a low temperature tar fraction from mineral coal; the mixture does not knock at a compression ratio of 5: 1; (2) a Pennsylvanian straight run gasoline is mixed with 20 per cent of benzene and 20 per cent of a product boiling up to 200‹ C. obtained by destructive hydrogenation in stages of gas works coal tar; (3) a distillation gasoline from Texas " Ranger " crude oil is mixed with 30 per cent of a gasoline of B.P. 100-200‹ C. obtained by two stage destructive hydrogenation of mineral coal, and with 25 per cent of casing head gasoline; (4) 75 parts of a Texas distillation gasoline of B.P. 45-155‹ C. are mixed with 25 parts of a gasoline of B.P. 145-198‹ C. obtained by destructive. hydrogenation of mineral coal; (5) a gasoline of B.P. 85-200‹ C. obtained by a two-stage destructive hydrogenation of mineral coal pitch is mixed with 30 parts of a casing head gasoline. Specifications 259,944, 278,341, and 325,858 are referred to. Reference has been directed by the Comptroller to Specifications 259,944, 278,341, and 325,858.
Patent GB-740128-A (GB)
Title: Improvements in and relating to sifters
IPC: B07B4/02
Filed: 1954-05-04
Abstract: For separating dust into two fractions of different particle sizes, a transverse air current pneumatic sifter comprises a gas conduit with a dust inlet opening in the top wall, and a dust outlet in the bottom wall below the inlet and a vertical grate composed of horizontal bars mounted downstream but close to the dust inlet.  A horizontal grate may be placed across the dust outlet.
Patent GB-1062691-A (GB)
Title: Closure device for a camera
IPC: G03B17/52
Filed: 1964-03-26
Abstract: 1,062,691. Cameras. INTERNATIONAL POLAROID CORPORATION. March 26, 1964 [March 29, 1963], No. 12871/64. Heading G2A. In a self-developing camera for use with a film assembly having a detachable draw tab 50 for pulling forward the film leader 52 into engagement with a pair of pressure rollers 54, 56, a flap 24 is provided for normally covering the aperture 40 through which the film sheets are eventually pulled from the camera. The flap pivots on pins 32, and is biased into its closed position by springs 36, as a protection against light or dust entering the camera. The draw tab 50 is taken through an upper slot 48, and as it is pulled in the direction 51, the leader 52 of the film assembly is brought forward until it passes between rollers 54, 56, and emerges through aperture 40. The top edge of flap 24 has a channelled bearing surface 46, and as draw tab 50 is tautened to pull it out, it bears against this surface and so pivots flap 24 away from aperture 40 to uncover it, and allow egress of the film assembly. When the film leader has come through aperture 40 sufficiently for it to be grasped, the draw tab 50 is torn away, and the film pulled out of the camera by means of its leader, the processing taking place as it passes between rollers 54, 56. The lower edge of aperture 40 is faced with a bar (which, like flap 24, may be of a plastics material) having an angularly contoured profile 38a. The respective edges 24<b>, 38b of members 24 and 38a form guides for leader 52 and prevent it from being pulled too much to one side or the other so as to bear predominantly against one or the other roller, which causes uneven development. The rollers 54, 56 are carried on the ends of arms mounted scissor fashion, and are spring-urged towards each other, so that different thicknesses of materials may be accommodated between them.
Patent GB-329794-A (GB)
Title: Improvements in or relating to sound reproducing apparatus adapted to be employed with gramophonic records
IPC: G11B3/46
Filed: 1929-04-25
Abstract: 329,794. Ashburner, R. April 25, 1929. Tool-arms and mountings. -The stylus is arranged and mounted so that in following the sound track it is bodily displaced without substantial variation of its inclination to the track. As shown, the stylus s is mounted in a. bar 6 arranged to rock on an axis parallel to the stylus and provided by pivots carried by lugs 8 on the clamping ring for the diaphragm to which the arm 4 of the bar is centrally connected. The stylus-bar may be constructed so that the stylus is at the other side of the pivot axis.