baber/WOPTO huggingface dataset:
Patent GB-1249848-A (GB)
Title: Improvements in or relating to valve gear
Inventor: UHLIR FRANTISEK
IPC: F01L1/18
Filed: 1970-04-02
Abstract: 1,249,848. Cam followers. AUTOMOBILOVE ZAVODY NARODNI PODNIK. 2 April, 1970 [4 April, 1969], No. 15662/70. Heading F2K. A pivoted arm cam follower for an I.C. engine valve gear has a cam-engaging member 2 rockably mounted on the arm to pivot about an axis 6 offset from and transverse to the rotational axis 7 of the cam shaft. This enables the contact surface of the member 2 to engage the cam over its full width, to reduce wear. The member 2, of chilled cast iron, rocks on a pair of balls 3, or a cylindrical roller (9) (Fig. 3, not shown) and is retained on the arm by a spring clip 4.
Patent GB-1221745-A (GB)
Title: A one-way clutch in a well packer
IPC: E21B33/1295
Filed: 1968-06-13
Abstract: 1,221,745. Well packers: releasable fastenings. CAMCO Inc. 13 June, 1968 [30 June, 1967]. No. 15677/69. Divided out of 1,219,152. Headings E1F and E2A. [Also in Division F2] A well packer (see Specification 1,219,152) has a "clutch" to allow longitudinal relative movement between two members of the packer -for example two sleeves-in one direction only, the "clutch" comprising an external helical buttress thread on one member, and a plurality of segments connected to the other member and urged into engagement with the external thread, the segments having when positioned one way around the member a continuous internal helical buttress thread but being positioned the other way round the member so that the threads in one segment are not in line with the threads in the adjacent segments thus preventing the crests of the external thread engaging at the same time all the crests of the threads in the segments. Garter springs are positioned in grooves in the outside of the segments to urge them inwardly.
Patent GB-714695-A (GB)
Title: Improvements in or relating to indicators for maintenance operations on machines andvehicles
Filed: 1951-07-02
Abstract: 714,695. Counting-apparatus; odometers ; indicating-apparatus. HARPER, C. Oct. 2, 1952 [July 2, 1951], No. 15685/51. Classes 106 (1), 106 (3) and 106 (4). [Also in Group XXXI] Apparatus for connection to a moving part of a machine is arranged to repeat a number of different indications each at different intervals and comprises two relatively rotatable indicating members, one of which is so connected by gearing to a moving part of the machine as to complete a cycle of movement once during the longest interval of repetition and the other of which is stationary, one of which members has marked upon it a number of sets of indications, each set having a number of indications equal to the number required to be repeated during the longest interval, while the other indicating member is arranged to obscure the first member but is provided with a number of windows corresponding to the number of sets of indications with which the windows are arranged to co-operate. As shown, the instrument is intended to be fitted to a motor vehicle for indicating when different maintenance operations required cyclically, at different mileages, should be effected. A shaft 11 is driven so that its angular displacement is proportional to the mileage of the vehicle from a shaft or cable 12, driven from a speedometer or from the transmission drive and driving, through a universal coupling 13, a shaft 14 which drives a gear wheel 22 through a spur wheel 15, a crown wheel 16, and a train of reduction gears. The gear wheel 22 is mounted on a hub 23 free on the spindle 11 but frictionally held by a spring 24 against a collar 25 fixed on the spindle 11 which will therefore normally rotate with the gear wheel 22, the gearing being so selected that a pointer 27 on the spindle 11 will make a complete revolution relative to a dial 26 for every 250 miles of travel. A rotary disc 60 behind the dial 26 is driven from the spindle 11 through reduction gearing so as to make a complete revolution every 3,000 miles and another rotary disc 34 mounted to turn with a ten-tooth star wheel 35 is driven stepwise by three pins 38 on the back of the disc 30 and so makes a complete revolution every 10,000 miles. The two discs 60, 34 have marked thereon series of spots 31, 40, 41 and radial lines 32, 33, 42 so disposed that marks appear through windows 1 to 6 in the dial 26 and indicate respectively cycles of 250, 500, 3,000, 2,000, 5,000 and 10,000 miles, exact readings occurring when the pointer 27 is at the zero mark 54. A series of digits 0 to 9 marked around the centre of the disc 34 indicate thousands in a window 43 and tell-tale means 46 oscillated through a cam 50 on shaft 14 indicates, through a window 45, immediately the instrument ceases to work as e.g. through a broken transmission drive. The end of the spindle 11 is formed with a squared end portion for engagement with a setting knob.
Patent GB-476316-A (GB)
Title: Improvements relating to conduits for cables or pipes
IPC: H02G9/06
Filed: 1936-06-05
Abstract: 476,316. Conduits. SMITH, W. H. June 5, 1936, No. 15767. [Class 36] [Also in Group XXVIII] A concrete or like conduit for cables or pipes comprises identical upper and lower sections A, A<1>, formed with one or more recesses B which when the sections are placed together, form passages for the cables or pipes. The sections are each provided with at least one depression and one projection so positioned that the depression of the upper member engages the projection of the lower member and vice versa. Thus, the upper member may have a rib D for engagement in a channel C<1> in the lower member and a channel C which is engaged by a rib D<1> of the lower member. Each section may be formed on one end face with a rib E and on the opposite face with a corresponding groove so that successive sections interlock. The joints between G the upper sections are preferably staggered with respect to the joints G<1> between the lower sections. The joints between all sections may be grouted. Specification 353,050 is referred to.
Patent GB-437828-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/18
Filed: 1934-05-28
Abstract: 437,828. Discharge apparatus. TRENZEN, C., Venlo, Holland. May 28, 1934, No. 15845. Convention date, Dec. 4, 1933. [Class 39 (i)] The filling of a tube consists, at least in part, of metals or metallic vapours combined with groups of. molecules or radicles having the formula (CO)x. One or more of the carbonyls Fe(CO)4, Fe(CO)5, Mo(CO)n and Ni(CO)4 may be employed, e.g. nickel carbonyl at a partial pressure of 1À5 mm. The tube yields a white light, which is stated to be unaffected by the addition to the filling of a rare gas, such as helium, neon or argon or of mercury.
Patent GB-254326-A (GB)
Title: Improvements in or relating to acoustic instruments such as loud speakers
IPC: H04R7/20
Filed: 1926-06-24
Abstract: 254,326. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Minton, J. P.). June 25, 1925, [Convention date]. Loud-speakers; magnetic instruments; diaphragms.-The diaphragm of an acoustic instrument, such as a loud-speaker, is supported by resilient means having just sufficient restoring force to restore the diaphragm to its rest position when no operating forces are acting upon it, the diaphragm being so supported and constructed that it vibrates substantially as a piston for low frequencies and substantially as a true diaphragm for high frequencies. Fig. 1 shows a diaphragm 6 supported in an aperture 15 in the side wall 4 of a cabinet 1 by means of springs 9 attached to lugs 7, 8 on the diaphragm and wall 4 (respectively. An armature 10 is fastened to the diaphragm 6 by adjusting means including a thumb screw 11 by which the armature may be adjusted with respect to the electromagnetic device 12. The device 12 is carried by a bracket 13 and has its coils connected to the wires 14 of a radio receiver, electric phonograph &c. indicated at A and B. The wall 4 serves as a baffle to prevent interference between the sound waves from opposite sides of the diaphragm. The aperture 15 is covered by a grill 5. In the modification, Fig. 2, the diaphragm 22 is of the double cone type and is supported within a baffle ring 21 by one or more strips 23 of rubber, leather, or metal or by an annulus of soft leather or rubber completely closing the space between the diaphragm and ring. The ring 21 is mounted on a base 20 which also supports a bracket 26 for the electromagnetic device 25 which is connected to the diaphragm 22 by a rod 28. The construction shown in Fig. 2 may be arranged in a cabinet similar to that shown in Fig. 1, whilst, if desired, the vibratory system of Fig. 1 may be employed without a cabinet.
Patent GB-168442-A (GB)
Title: Improvement connected with hydraulic transmission gear
IPC: F16K17/08
Filed: 1920-06-12
Abstract: 168,442. Carey, R. F. June 12, 1920. Safety valves. - Relates to hydraulic transmission gear in which both sides of the system are connected by a passage provided with a single relief valve so arranged that excess pressure on either side can operate the valve and pass to the other side. A spring or weight-controlled valve having a coned or mitred head fitting a, seating in the passage way is employed. In the form shown, the cross-sectional area of the stem D of the coned valve is double that of the seating B.
Patent GB-1202175-A (GB)
Title: Improvements in or relating to gas blast circuit breakers
IPC: H01H33/00
Filed: 1969-03-27
Abstract: 1,202,175. High-voltage switches. BROWN, BOVERI & CO. Ltd. 27 March, 1969 [29 March, 1968], No. 16018/69. Heading H1N. A gas-blast circuit-breaker of the kind having a pressure vessel 1 enclosing circuit-interrupting equipment has an isolating switch of the pantograph type mounted on the vessel and connected to the equipment by a conductor extending through a bushing insulator. As shown, both bushing insulators 2, 3 support isolating switches 4, 5 which are operated by rotary insulating members 8, 9. Earthing switches 10, 11 and current transformers 12, 13 are provided and reference is made to the provision of voltage transformers and interlocking devices. Figs. 2 and 3 (not shown) illustrate arrangements for maintaining the bushings 2, 3 under compression.
Patent GB-1035887-A (GB)
Title: Improvements relating to films
IPC: C08L23/04
Filed: 1965-04-14
Abstract: A composition consists of 20-80% weight, polyethylene, and 80-20% linear copolymer of ethylene and 1-butene.  The polyethylene has density 0.910-0.925 g./c.c. at 25 DEG  C., and preferably is branched; the copolymer is of 90-97% ethylene and 10-3% 1-butene, with density 0.920-0.935 g./c.c. at 25 DEG  C.  The composition may also comprise 500 p.p.m. 2,6-di-t-butyl-4-methyl phenol and 600 p.m.m. erucamide.ALSO:A sheet comprising 20-80% wt polyethylene and 80 - 20% linear copolymer of ethylene and butylene is coated before or after stretching with vinylidene chloride copolymers, nitrocellulose, branched polyethylene chlorinated branded polyethylene, ethylene/vinyl acetate copolymer with or without wax, polyamides, polyesters, polyethers, cellulose ethers and halo-olefin polymers.  The sheets may be treated with an electric discharge and subsequent application of a wetting agent, e.g. alkyl sulphate.
Patent GB-858993-A (GB)
Title: Improvements in or relating to aerials for ultra-high frequencies
IPC: H01Q13/08
Filed: 1959-05-11
Abstract: 858,993. Waveguides. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 11, 1959 [May 14, 1958], No. 16065/59. Class 40(8). [Also in Group XL(c)] An aerial system is formed from a plurality of trough waveguides symetrically disposed round a central axis and caused to radiate either at spaced points or continuously throughout their length. The form of trough waveguide used consists of two conductive walls, such as CD, at right angles to each other and joined along the central axis of the system. Bisecting the angle between the walls is a central fin (G). Four such guides may be arranged round the central axis. They are fed at one end from a circular guide W and energy propagates in the guide in non-radiating TE mode and is converted into a radiating TEM made by asymmetric elements S1 to S6 mounted on the fins. In another embodiment the fin is shaped to radiate along the whole of its length.
Patent GB-673568-A (GB)
Title: Pressing machine and method
IPC: D06F69/02
Filed: 1950-06-28
Abstract: 673,568. Ironing - machines. KRAMER, W. O. June 28, 1950 [July 25, 1949], No. 16182/50. Class 138 (ii). A pressing-machine comprises a continuously - moving carrier belt having a long upper horizontal course extending through receiving, pressing and delivery regions, means for moving the belt to carry folded garments from the receiving region into the pressing region and thence into the delivery region and a resilientlymounted presser shoe disposed over the belt in the pressing region for continuously applying downward pressure on the belt or on folded garments carried thereby in the pressing region. In the arrangement shown, in which folded garments are fed flatwise from tables 12 on to a continuously-moving carrier belt B on a table MT, the garments are carried under and past a presser shoe S to packaging operators stationed on each side of the belt at that end thereof. The shoe S comprises side-members 30, 31, a bottom smoothing plate 33 and a removable top cover-plate 34 and houses any suitable preferably electrical heating elements 25, regulated from a control-box 26 of any known type. The lower edges of the side members and the plate 33 are preferably curved at their forward ends. The shoe is supported at each side thereof, on plates 40, 41 which are carried on springs 42, 43 seated in recesses in the table MT and surrounding bolts 45, 46 which pass through the plates 40, 41. Nuts 47, 48 on the bolts 45, 46 permit adjustment of the height of each end of the shoe above the belt B. The shoe is also indirectly supported on the plates 40, 41 by plates 50, 51, having lugs 52 and 53 respectively which support rods 54, 55 extending across each end of the shoe, the rod 55 extending beneath lugs 56 at the rear end of the side-members 30, 31. A releasable hook connection 58 pivoted on a rod 63 and engageable with the rod 55 permits the shoe to be lifted clear of the belt. B for inspection &c. The plates 50, 51 are anchored to the plates 40, 41 and the pressure of the shoe on the folded garments is adjustable by means of bolts 67, 68 passing through the plates 40, 50 and 41, 51 and having springs 73, 74 thereon adjustable by nuts 70, 71. In operation of the machine, the nuts 47, 48 at the rear end of the shoe are adjusted to incline the shoe towards the rear and the rear springs 73, 74 are adjusted to control the final pressing and compacting pressure on the garments.
Patent GB-186111-A (GB)
Title: Improvements relating to pressure operated devices for indicating the position of engine pistons
IPC: G01L23/30
Filed: 1921-06-13
Abstract: 186,111. Sauer, J. F. June 13, 1921. Valves and valve-gear, indicating-apparatus for.- Relates to an indicator for determining the position of the piston of an internal-combustion engine and more particularly for facilitating the operation of ignition timing, and consists in a casing 2 adapted to be applied to the spark-plug opening and which is provided with a balanced resistance or spring - controlled plunger 6 and indicator rod 9. The pressure created by short movements of the engine piston causes the plunger to reciprocate and to come to rest balanced between the springs 12 until the piston reaches the deadcentre, at which point when the piston is moved and stopped the plunger remains stationary. The movement of the plunger is limited by stops 13, 15. and exhaust ports 7, 16 are provided to give freedom of movement and to serve as a means for communicating with air-operated warning-devices such as a whistle, nozzle and blade, &c.
Patent GB-237088-A (GB)
Title: Composition for treating metal baths and method of making the same
IPC: C22B9/05
Filed: 1924-07-09
Abstract: 237,088. Becket, F. M. July 9, 1924. Dry processes of refining metals; alloys.-Materials or compositions to be added to molten metal baths for the purpose of deoxidizing, or for removing impurities therefrom, or for adding ingredients thereto, or for improving the properties of the metal, are applied in the form of aggregates, preferably briquetted, of reagent, which may be in divided form, bonded with a heavy material which may be a soft, malleable metal, and may be volatile, for example lead. For example, an iron-chromium alloy may be treated with an alloy of 92 per cent of lead and 8 per cent of magnesium; other materials described include a briquetted mixture of magnesium shavings, lead shot and powdered manganese-silicon; manganese-silicon in an alloy of 56 parts of lead and 17 parts of magnesium; ferro-manganese in an alloy of 83 parts of lead and 16 parts of magnesium ; and magnesium shavings and manganesesilicon, the magnesium in this case acting as the binder. Specification 228,757 is referred to.
Patent GB-636904-A (GB)
Title: Improvements in or relating to machines adapted for seaming together two portions ofa workpiece in sheet form by use of the heating effect of a high frequency electric field
IPC: A43D43/06
Filed: 1947-06-21
Abstract: 636,904. Folding edges of sheet material. BRITISH UNITED SHOE MACHINERY CO., Ltd. June 21, 1947, No. 16463. Convention date, June 22, 1946. [Class 42 (i)] [Also in Group XI] In an edge-folding machine in which the work is fed past means for deflecting successive edge portions of the work with respect to the remainder of the work, and the deflected portions are successively pressed against the remainder of the work, high-frequency electric heating is applied to each successive edge portion during the pressing operation to seam the folded edge to the remainder of the work, for example by thermoplastic or thermosetting adhesive. The invention also includes the seaming together of two portions of sheet material by high-frequency electric heating, wherein the work is fed step-by-step and is pressed at successive locations as it passes through a stray high-frequency field set up by two electrodes both situated on the same side of the work. As shown, Fig. 2, in an edgefolding machine as described in U.S.A. Specification 1,850,979, french binding 10, coated with thermoplastic or thermosetting adhesive and stitched to a shoe upper part 12, is folded over by a reciprocating finger 20 and the work is then pressed between anvil 24 and hammer 22 which rock about a horizontal axis (not shown) to feed the work a step forward.. One electrode 56 is mounted in, and is insulated from, the anvil 24, which is earthed and constitutes the other electrode; hammer 22 may be made of low-loss dielectric material. During pressing, the stray electric field from the electrodes heats the adhesive to secure the binding 10 to the shoe part 12. The length of time which any point of the work remains in the field is controlled by adjustment of the length of the feed step. The machine is controlled as in Fig. 1, which shows the invention applied to a similar machine, as described in Specification 544,010, for folding the skived margin of a shoe upper part. Supply of high-frequency power to electrode 56 from an oscillator 50 via lead 62, coil 66 and lead 68 is controlled through a switch 90 by a treadle 42 which also operates a clutch 36 to actuate the main drive shaft 32.
Patent GB-199741-A (GB)
Title: Improvements in and relating to the amplification of electric currents
IPC: H04L25/26
Filed: 1923-06-25
Abstract: 199,741. British Thomson-Houston Co., Ltd., (Assignees of Story, W. E.). June 26, 1922, [Convention date]. Thermionic amplifiers.-In a system for amplifying current variations in a photo-electric cell the resistance in series with the cell is varied simultaneously with but oppositely to the resistance variations in the cell. Preferably the resistance is a similar cell. As shown, light from a source 3 is reflected on to a photo-electric cell 1 by a mirror 6 which is attached to a diaphragm 8 influenced by sound or by variable currents in coils 9. Part of the beam is intercepted by a mirror 24 or a total reflecting prism and reflected on a cell 11 in series with the cell 1. The cell 11 is included in the grid circuit of an amplifying valve the output circuit of which includes telephones 16 or a recording device 17, 18. Protective resistances 21, 22 are preferably included.
Patent GB-661942-A (GB)
Title: Improvements in or relating to blade-or vane-adjusting means for fan, pump or like impellers or marine or aircraft propellers
IPC: F03D7/02
Filed: 1949-06-22
Abstract: 661,942. Screw fans and pumps; hydraulic turbines. KONINKLIJKE MACHINEFABRIEK GEB. STORK & CO., N.V. June 22, 1949. [June 23, 1948] No. 16525/49. Classes 110(i) and 110 (iii). [Also in Group XXXIII] In a device for adjusting the blades of an impeller for a fan, pump, or hydraulic turbine, the driving gear 12 of the adjusting device 6-5-7-10 of the blades is disconnected from the pinion 14 of the control mechanism during the operation of the impeller and the control mechanism is provided with a lock at 34 actuated by the control member 20 for engaging and disengaging the pinion 14 and driving gear 12 and locking the control mechanism when the latter are disengaged. The adjusting device is as described in Specification 661,941. Pinion 14 is secured on a shaft 13 movable axially by a fork 15 actuated by mechanism connected to a shaft 19 geared to a rod 30 and control handwheel 20 preferably provided with an electromagnetic lock 37 which 'releases the handwheel when supply of current to the driving motor is interrupted. The shaft 13 is driven by a toothed wheel 22 meshing with a broad pinion 23 geared to a shaft 27 which is rotated through gears 29, rod 36, and handwheel 28. Rod 30 is screwed to carry a nut-block 31 secured to one end of a lever 33, the other end of which carries a spring-loaded bolt 34 engaging in holes in a disc 35 secured to the rod 36. To adjust the blades the impeller is first brought to a standstill, handwheel 20 is rotated to cause the spring-loaded pinion 14 to engage the adjusting device driving gear 12, nut-block 31 lowers and lever 33 is moved to raise bolt 34 clear of disc 35, thereby freeing handwheel 28 which is then turned to rotate pinion 23 and hence wheel 22, pinion 14 and adjusting gear 12. The degree of adjustment of the blades is indicated by a nut-block 40 screwed on the rod 36. A switch 41 actuated by the lever 33 prevents supply of current to the driving motor so long as pinion 14 is in mesh with the gear 12. In an alternative construction the driving gear 12 is provided with radial teeth with which the pinion 14 may be brought into mesh. Mounted on the gear 12 are pivoted strips which act under centrifugal force to prevent the pinion 14 coming into mesh. In this construction the shaft 13 has a surrounding sleeve on which is mounted a lever which is depressed to bring the pinion 14 into mesh and which carries a stud for locking a handwheel which is mounted on, and rotates, the shaft 13.
Patent GB-334235-A (GB)
Title: Improvements in or relating to electrical plunger-contacts such as used in lamp-holders
IPC: H01R33/46
Filed: 1929-05-30
Abstract: 334,235. Crabtree, J. A., and Harrison, B. G. May 30, 1929. Holders. - The plunger springs are of larger diameter than the plungers and abut on coned or screwed collars on the plungers and terminals. In the arrangement shown the terminals c and plunger b are provided with coned collars c<1>, b<1> on which abut the ends of the spring a. The terminal may be formed with a split pin e which enters the plunger. The terminal is secured in the holder by a screw f which may be arranged to give a slight rotational play.