baber/WOPTO huggingface dataset:
Patent GB-521611-A (GB)
Title: Improvements in chain coal cutting machines for use in mines
IPC: E21C25/30
Filed: 1938-11-23
Abstract: 521,611. Coal-cutting machines. MUSCHAMP, N. J. Nov. 23, 1938, Nos. 34024/38 and 23064/39. [Class 68 (i)] Relates to chain jibs for coal-cutting machines having fixed and movable parts, an interposed spring unit allowing limited reciprocatory movement of the movable part, and means associated with the spring unit for adjusting tension of the chain. In Fig. 1, the jib body is slidable on a post E to which is bolted a sleeve A containing a spring C pressing on an inner sleeve B with a flange F or abutments limiting its movement into the sleeve A; the flange F bears against the integral or attached head H of a screw G engaging a phosphor-bronze nut in the jib body. The movement allowed is insufficient to allow the chain to leave the chain race or driving sprocket. The arrangement of the parts may be reversed, or the sleeve A may be omitted, the spring C and sleeve B then being received in a recess in the post E. In Fig. 3, the spring unit is carried by the jib body, the screw G is held against rotation by a block on its outer end, and adjustment is effected by a nut H. The screw may be protected by a sleeve attached to the nut H and passing through the special unit. In another form, the jib body is fixed to the post E and has a slidable outer end between which and the body, the spring unit and adjusting means are arranged. The spring units may be packed with grease, or two spring units may be provided one on each side of the adjusting screw or each provided with an adjusting screw.
Patent GB-507152-A (GB)
Title: Light-sensitive multilayer photographic material
IPC: G03C7/28
Filed: 1937-12-09
Abstract: 507,152. Colour photography. CASPAR. B. Dec. 9, 1937, No. 34082. [Class 98 (ii)] At least one layer of a multi-layer sensitive material is to a colour density higher than that required for accurate colour reproduction by a dye which is fast to ordinary photographic treating solutions but capable of being locally bleached in the presence of metallic silver, said layer comprising also either metallic or colloidal sliver or a silver salt which is uniformly exposed or is sensitized e.g. to infra-red, so that it can ultimately be exposed, for the purpose of removing the excess dye. In the example, the film comprises on one side of the support a blue sensitive emulsion coloured blue-green with Pontamine Sky Blue 5BX, and on the other side a red sensitized emulsion coloured yellow with Xylenewalkgelb G, and a blue sensitized emulsion containing the magenta dye Tuchechtbrillantrot 2B. The yellow dyestuff is in excess of that required for correct image formation. The two other layers may also contain excess. Cryptocyanine may be used to sensitize the layers to infra-red. The images and the exposed silver salt are both transformed by dye destruction with either hydrobromic acid or thiocarbamide solutions.
Patent GB-737072-A (GB)
Title: Improvements in automatic balancing device for the rotating cylinders of centrifugal liquid extractors
IPC: D06F37/22
Filed: 1953-12-08
Abstract: 737,072. Centrifugal hydro - extractors. UNITED STATES HOFFMAN MACHINERY CORPORATION. Dec. 8, 1953 [Dec. 13, 1952], No. 34100/53. Class 23. In a hydro-extractor in which the cylinder rotates about a horizontal axis when balanced but also oscillates about a second higher axis if unbalanced, eccentric means in the cylinder bearing system are linked to means diverting a jet of balancing fluid into one or more of a plurality of tanks evenly distributed about the cylinder periphery to compensate unbalance during cylinder rotation. The end wall 25 of the cylinder 10 is fixed to a supporting and drive shaft 12 which is supported in a bearing carried by the extractor housing end wall 15. As shown in Fig. 3, the bearing comprises self-aligning bearings 36, 54 permitting rotation of the cylinder about the axis A, and a roller bearing 40 supporting the bearing 54 by means of an eccentric spacer 50 and permitting oscillation of the cylinder about the axis C. A diverter assembly 75 comprising arms 76, 77, 87 is fixed to the spacer, the arms 76, 77 carry vanes 80, 81 for diverting the balancing fluid from nozzles 67 mounted on the housing, and the end of the arm 87 being attached to the housing by horizontally opposed springs 83 which tend to restore the cylinder to rotation about the axis A only. With the cylinder rotating and balanced the vanes are in the position shown by full lines in Fig. 2 and the nozzles discharge the fluid directly to return conduits 71 (Fig. 5) mounted on the housing. With the cylinder rotating and unbalanced the oscillation of the cylinder moves the spacer and causes greatly multiplied movement of the vanes which move to positions such as those shown by dotted lines in Fig. 2. As shown in Fig. 5 the vane 80 is displaced as a result of cylinder oscillation to divert fluid from a nozzle 67 into one or more of a series of troughs 55 attached to the end wall of the cylinder and discharging into balancing tanks 62 formed in the tumbling ribs of the cylinder. Relief valves 90 are provided for each tank to prevent over compensation of balance and for drainage of fluid. In the event of excessive cylinder oscillation causing great movement of the arms, a cam at the outer end of the arm 87 operates a switch 108 to stop the cylinder drive motor 112 so that the cylinder load may be redistributed. In a modification the vanes are arranged to deflect the jet from the tanks when the cylinder is balanced and move away from the jet when the cylinder is unbalanced. In a further modification (Fig. 8, not shown) a cylinder supported at both ends is provided with balancing fluid control means at either end, the tanks being partitioned at the mid length of the cylinder and each compartment so formed being provided with a relief valve. Specification 715,459 is referred to.
Patent GB-378740-A (GB)
Title: Improvements in or relating to tubular connections for vacuum cleaners
IPC: A47L5/36
Filed: 1931-12-09
Abstract: 378,740. Tubular joints for vacuum cleaners. ELECTROLUX, Ltd., 153, Regent Street, London.-(Assignees of Inventia Patent-Verwertungs-Ges. ; 10, Herrenacker, Schaffhausen, Switzerland.) Dec. 9, 1931, No. 34143. Convention date, Dec. 9, 1930. [Classes 8 (i) and 99 (i).] A joint between a hood 16 and the support 14 of an electric motor 12 in a vacuum cleaner comprises a rubber ring 23 which rolls during assembly in an annular space 22 such as a groove in the inner member between the hood and support. The cover 18 of the dust collector 15 is similarly connected to the top of the tube 17. The tube and the socket are flared inwardly and outwardly respectively at 29, 30.
Patent GB-1149932-A (GB)
Title: Tube-extrusion press or other extrusion press with a retractable die-carrier
IPC: B21C35/04
Filed: 1966-07-29
Abstract: 1,149,932. Extruding. SCHLOEMANN A.G. 29 July, 1966 [19 Aug., 1965], No. 34190/66. Heading B3P. A tube extrusion press has an axially movable die carrier 6 and a run-out system including a chain or slat conveyer 12 which are movable together by a common drive unit 19. The carrier 6 for the die 5 is connected by links 8 with a roller conveyer 10 which is coupled to the chain or slat conveyer 12 mounted on wheels 16 running on rails 17 whose height is adjustable by links 21 and a power unit 22. After extrusion the discard 3 and dummy block 4 are severed by a saw 2. The conveyers and the die carrier 6 are then movable axially to facilitate removal of the discard, by hydraulic cylinder 18. The conveyer belt 12 is mounted on reversing rollers 13, 14 which may be driven in synchronism with the extrusion press. Reference is made to the extrusion of light metal.
Patent GB-176481-A (GB)
Title: An improved electric heating element
IPC: H05B3/00
Filed: 1920-12-03
Abstract: 176,481. Automatic & Electric Furnaces, Ltd., and Coleman, J. P. Dec. 3, 1920. Electric radiators.- Electric beating-elements, of the kind comprising a spiral of metallic wire enclosed by a tubular support having one or more openings therein, are arranged so that a simple helix is supported by the tube and a core is dispensed with. Each fire-clay tube a is open at the front c and has cross-pieces d which serve to confine a simple helix b. The tubes are mounted on brackets f on insulating supports e, the brackets being adapted to retain the helix in position. The ends of the resistance wire are connected to the screws h used for securing the brackets to the supports e.
Patent GB-1041510-A (GB)
Title: Apparatus for producing all-glass multiple sheet glazing units
Inventor: DEAN HARRY NELLES
IPC: C03B23/24
Filed: 1965-08-11
Abstract: An apparatus for producing all-glass multiple sheet glazing units comprises, means 27 (Fig. 3, not shown), for supporting two sheets of glass in spaced face-to-face relation and for moving them along a definite path through a heating chamber 26, a heating assembly 55 disposed in the chamber adjacent said path and having directing means at opposite sides of the path to direct heating flames towards the path and against the marginal edge portions of the spaced glass sheets, and forming means 56 disposed along said path for urging the heated marginal edge portions into fusion contact with one another, and is characterized by the fact that the said directing means are disposed adjacent areas of the sheets located inwardly of their marginal edge portions and orientated to direct the heating flames in an angular direction away from the inner portions of the sheets and on to the marginal edge portions. A pair of glass sheets are held by vacuum cups 37 in a vertical spaced position for passage through the furnace 26 passed units such as A, B where one pair of edges is heated by the assembly 55, pressed together into semicircular form by rollers 63 and fire-polished by a burner assembly 57, the glass sheet assembly being rotated through 90 degrees between each unit.  Each heating assembly 55 comprises opposed burner heads 59 (Figs. 5 and 7, not shown), each having a horizontal row of burner nozzles 61 disposed upwardly of the lowermost marginal edge portions of the pair of glass sheets and being so positioned in the face 71 of the burner heads 59 that the flames are angled downwardly to impinge only on the lowermost marginal edge portions of the sheets. The burner heads are fed by gas through inlet 75 and passages 74, 73 and are cooled by water passing through inlet 77, passages 76, 78 and outlet 79.  The fire-polishing burner assembly 57 comprises three rows of burner nozzles 69, 70 suitably angled to smooth the fused edge of the glazing unit.  The furnace 26 may be heated by radiant electric resistance heaters 52.
Patent GB-339752-A (GB)
Title: Improvements in or relating to control apparatus for combined electric lighting and heating or like installations
IPC: H02J3/14
Filed: 1929-11-11
Abstract: 339,752. Johnson, A. C. Nov. 11, 1929. Controlling consuming devices. - A lighting and heating installation with an off-peak load has the latter or,part thereof switched on or off by a switch controlled by an electromagnetic device adapted to be connected in shunt with the supply conductors and disconnected by a second switch according to requirements. This second switch may be a hand-switch, bell-switch, a relay controlled by another circuit such as a street lamp supply, or a switch actuated by an electromagnet in series with a peak-load circuit, two or more off-peak load switches may thus be automatically controlled in sequence as described in Specification 320,908. The switches may be mercury switches. The shunt electromagnet may have a resistance in its circuit short-circuited by the switch in its closed position. Fig. 1 shows a typical circuit in which a switch a is opened by a magnet A when a coil B in series with a peakload circuit d is sufficiently energized to close a switch b; the switch a controls an off-plate load c. Fig. 3 shows mercury switches arranged and connected as a vendible unit applicable to the case shown in Fig. 1. Modifications are described. In one the switches shown in Fig. 3 are interchanged in circuit position; in another a tilting circuit-opening switch of the general type shown at k, Fig. 3, is used in place of that shown at g; in another a switch as shown in Fig. 6 is used. In the arrangement according to Fig. 7 a solenoid A through a lever x tilts a switch with three contacts one m<1> in the off-peak circuit c. Of these contacts m, m<2> short-circuit a resistance 4 which is thrown into the circuit of solenoid A when the switch is tilted to open the circuit c.
Patent GB-1122738-A (GB)
Title: Improvements in or relating to electrical inductors for induction heating
Inventor: KOCOUREK VLADISLAV
IPC: H05B6/02
Filed: 1966-08-01
Abstract: 1,122,738. Inductors. ZAVODY ELEKTROTEPLENYCH ZARIZENI(ZEZ) NARODNI PODNIK. 1 Aug., 1966, No. 34426/66. Heading H5H. An inductor for induction heating comprises a winding 14 and a lining of longitudinal fillets 11 of non-circular cross-section with an insulating layer 13 between the fillets 11 and the winding 14, at least one fillet being replaced by a metal guide fillet 12 of circular cross-section made from non-magnetic material. The fillets (31) may have bosses and recesses for cooperative interengagement, (Fig. 3, not shown). The inductor itself is of circular or non-circular cross-section. The fillets 11 may be solid or hollow, as may the guide fillets 12. The crosssection of the fillets 11, (31), is trapezoidal or rectangular (Fig. 3, not shown).
Patent GB-197625-A (GB)
Title: Improvements in or relating to harness for horses and other animals
IPC: A01K13/00
Filed: 1922-12-18
Abstract: 197,625. Puckle, P. C. Dec. 18, 1922. Clothing for animals. -Animals are prevented from rolling completely over by means of pads 1 spaced apart on either side of the back by one or more rigid arched members 2 riveted to metal plates 3 on the pads. Leather straps or pairs of straps 4, 5 on the pads fasten the device in position, or straps attached to one pad may be fastened to buckles on the other pad. Wide canvas or textile bands may replace the straps, narrow leather straps being attached thereto for fastening purposes. A breast strap 8 is attached to loops 7 on the front pair of straps, which are spaced from the others by bands 14.
Patent GB-182061-A (GB)
Title: Improvements relating to small arms
IPC: F41A17/50
Filed: 1921-12-23
Abstract: 182,061. Frommer, R. von. Dec. 23, 1921. Breech actions, drop-down barrel.-A safety device of the kind operated to the safe position by the breaking down of the gun, comprises a slide 8 mounted in the trigger-guard and a connecting slide 11 adapted to be operated by the 'barrel lump 30 when the gun is opened. In the construction shown, the safety-slide 8 has a notch 10, Fig. 4, which in the firing-position registers with a projection 9 on the trigger 5. The connecting slide 11 has a nose 14 entering a recess in the lump 30, the nose being bevelled so that when the gun is opened the slide is forced back. The slide 11 also operates an indicatdng-rod 18 which projects above the breech-body when the safety is on. The con. necting slide 11 can be removed, to render the safety device non-automatic.
Patent GB-1077313-A (GB)
Title: Feed arrangements for record media
IPC: G11B15/29
Filed: 1965-08-13
Abstract: 1,077,313. Tape drives. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Aug. 13, 1965 [Aug. 14, 1964], No. 34722/65. Heading G5R. A tape or card record driving arrangement, particularly for step drive, comprises a pair of continuously driven rollers R1, R2 formed of soft ferromagnetic material and a solenoid S surrounding a portion of the lower roller which when energized cause the rollers to attract, grip and drive the tape Lst. The bearing of the upper roller adjacent the tape is vertically elongated to allow this gripping movement. In a second arrangement, Fig. 4 (not shown) the rollers are provided with end portions of non-magnetic plastics material for gripping and driving a magnetic tape.
Patent GB-438397-A (GB)
Title: Improvements in or relating to the packing of rubber or like elastic bands or strips
IPC: B65D85/67
Filed: 1934-12-03
Abstract: 438,397. Packages. HUPPERTSBERG, A., (trading as HUPPERTSBERG, A. [Firm of]), 30, Hagenauerstrasse, Elberfeld, Wuppertal, Germany. Dec. 3, 1934, No. 34739. Convention date, March 20. [Class 94 (i)] Rubber or like elastic bands or strips are packed by forming them into a flat coreless coil f consisting of several annular coils pressed flat and arranged side-by-side, and secured by a paper strip. The inner end f is led outwardly at the front end of the bundle between two adjacent annular coils. A number of such bundles is placed in a box a partitioned at band provided with apertures g through which the ends f may be drawn. A transparent cover c, which may be secured at one edge by adhesive and provided at the opposite edge with a tab d, covers the contents. A stiffening strip c<1> braces the forward edge of the lid, and is bent into an angle shape so that the vertical part may be pushed down into the box. Two rows of bundles or several layers may be arranged in the same box. The lid may be detachable.
Patent GB-1149439-A (GB)
Title: 6-styryl-4-oxo-tetrahydro-ªÍ-pyrone and a process for the preparation thereof
Inventor: BRINKHOFF HANS
IPC: C07D309/32
Filed: 1967-07-28
Abstract: 1,149,439. 6-Styryl-4-oxo-tetrahydro-α-pyrone. SPEZIALCHEMIE G.m.b.H. & CO. 28 July, 1967 [29 July, 1966], No. 34784/67. Heading C2C. The invention comprises 6-styryl-4-oxo-tetrahydro-α-pyrone and a process for the preparation thereof comprising brominating ethyl acetoacetate with N-bromosuccinimide to form ethyl γ-bromoacetoacetate which is subsequently condensed with cinnamaldehyde in the presence of zinc. 4 - Methoxy - 6 - styryl - 5,6 - dihydro - α- pyrone (kawain) can be prepared by the methylation, e.g., using dimethyl sulphate, of 6-styryl- 4-oxo-tetrahydro-α-pyrone.
Patent GB-507442-A (GB)
Title: Improvements in or relating to sound film apparatus
IPC: G11B15/67
Filed: 1937-12-18
Abstract: 507,442. Spools for kinematograph and like films. BRITISH OZAPHANE, Ltd., OGDEN, W. G., and HAMER, C. O. Dec. 18, 1937, No. 35118. [Class 97 (i)] A flexible member 6 is secured at or near the core 3 of a spool for sound reproducing apparatus, and has a slot 7 to receive the end 8a of a fabric or similar leading strip on the film 8, the length of the slot 7 extending in the direction of length .of the flexible member 6 and being at least as great as the width of the leading strip, and the width of the slot being substantially less than the width of the strip. The member 6 may be a strip of celluloid, and may be secured to the core 3 by a screw 5 or may be secured to a pivot pin in a semicircular recess in the core.
Patent GB-191051-A (GB)
Title: Improvements relating to the construction of two-stroke explosion motors
IPC: F02B25/00
Filed: 1922-12-27
Abstract: 191,051. Segala, P. Dec. 23, 1921, [Convention date]. Two-stroke-cycle engines. - The annular piston 10 sliding over a cylindrical projection from the head draws a charge from the carburettor 12 into the pump chamber 9, which communicates through a passage 8 with a second chamber 7. At the end of the explosion stroke, during which the charge has been compressed, ports 15 communicate with a channel 16 in the piston head and the fresh charge enters the combustion chamber. Terminal exhaust ports (not shown) are provided.
Patent GB-904653-A (GB)
Title: Improvements in or relating to transponder devices for use in secondary radar systems
Inventor: PERKINS LEONARD
IPC: G01S13/76
Filed: 1957-11-12
Abstract: 904,653. Transponder apparatus; pulse radar. COSSOR Ltd., A. C. Nov. 10, 1958 [Nov. 12, 1957], No. 35209/57. Classes 40 (5) and 40 (7). A transponder, for use in secondary radar systems of the type described in Specification 734,588, wherein recurrent pairs of pulses are transmitted each pair comprising a control pulse B radiated from an omnidirectional aerial and followed by an interrogating pulse A radiated from a directional aerial, comprises a receiver for the pulses having its output coupled to a normally closed gate through a delay device which effects a delay equal to the time interval between the pulses of each pair, the gate being opened only when coincident control and interrogating pulses are applied thereto and when the amplitude of the received interrogating pulses exceeds that of the received control pulses by at least a predetermined amount and when opened triggering the transponder transmitter. As shown, the output of the receiver 11 consisting of the interrogating pulse following the control pulse by a definite time lag is supplied to the central winding 13 of a delay device 12, e.g. a magnetostrictive delay line. The delay line 12 is arranged so that the time delay between the take-off connections 14 and 15 is equal to the delay between the pulses A and B of a pair, and the connections are such that two pulse outputs - B dependent upon the level of the control pulse and A - B dependent upon the difference between the levels of the interrogating and the control pulse are obtained simultaneously. The output- B is passed via an amplifier and phase reverser to one grid of a gate valve 19 and the output A - B is amplified and applied to a further grid, the arrangement being such that the gate 19 is operated to energize the transmitter 23 when the resultant pulse A - B exceeds a predetermined value and is coincident with the pulse B. The pulses occurring for side-lobe signals in the secondary radar system will have no effect since the amplitude level of the side-lobe interrogator pulse will be much less than that of the interrogation pulse proper. In a modification, Fig. 3 (not shown), two additional coils are connected symmetrically with respect to the coils A and B as indicated in Fig. 1 to provide a difference signal which is of opposite polarity to the difference signal from coils 14 and 15. The resultant difference signals are applied one to one grid of a gate valve and the other after phase-reversing to the other grid.
Patent GB-366634-A (GB)
Title: Improvements in thermionic valve circuits
IPC: H01J21/02
Filed: 1930-11-22
Abstract: 366,634. Valve circuits. LISSEN, Ltd. and CALLENDAR, M. V., Lissenium Works, Worple Road, Isleworth, Middlesex. Nov. 22, 1930, No. 35235. [Classes 39 (i) and 40 (v).] In order to prevent the anode potential of a screen - grid valve from falling below that of the screen grid with large loads, an additional grid 6 between the screen grid 4 and anode 5 is connected to the anode through a battery 8. The battery should be large enough to prevent secondary emission and should not affect the primary electron discharge when the anode voltage swings to a low value.
Patent GB-384096-A (GB)
Title: Improvements in and relating to variable electric condensers
IPC: H01G5/38
Filed: 1931-12-21
Abstract: 384,096. Condensers. HESKETH, B., of McMichael, Ltd., Wexham Road, Slough, Buckinghamshire. - Dec. 21, 1931, No. 35245. [Class 38 (ii).] One stator 6 of a number of ganged condensers is mounted on blocks 9, 10 capable of sliding in slots cut in the framework 1 for the purpose of trimming adjustment. In the example the block 9 is held to the frame by a piece of springy material 11 while the block 10 is adapted to be moved by a stud 16 connected by a link 17 to a lever 19. A bowed spring 21 takes up slack in the linkwork, another 22 in the slot and a third 25 bears against the free end, of the lever 19 to retain it in adjusted position.