baber/WOPTO huggingface dataset:
Patent GB-645595-A (GB)
Title: Improvements in delay-action retractive electric switches
IPC: H01H7/08
Filed: 1948-10-27
Abstract: 645,595. Retractive switches ; momentary contact switches. MIDGLEY, A. H. Oct. 27, 1948, Nos. 27939 and 31501. [Class 38(v)] A time-delay retractive switch particularly for use with traffic indicators, has supplementary contacts which are periodically opened and closed during the period of delay in which the main contacts are closed. The switch is of the type having a central "off " position and the movement of an operating handle (not shown) to one side or the other of the central position closes a circuit between a moving contact member d and either of two blade spring contact-members e or f. At the same time the movement of the handle winds up a clockwork mechanism, (not shown) which, when the handle is released, runs down and after a predetermined interval, restores the contact-member d to its central "off" position. Connected to the first wheel of the clockwork train by a sleeve is a toothed wheel k<SP>3</SP>, the teeth of which co-operate with a pin o' on a pivoted lever o. The free end of lever o carries an insulated projection o<SP>2</SP> which acts on an extension of a spring contact arm m having contacts m<SP>1</SP> which co-operate with fixed contacts m<SP>2</SP>. Thus as the clockwork train runs down, the arm m is oscillated by the lever o causing the periodic opening and closing of the contacts m<SP>1</SP>, m<SP>2</SP>. In Figs. 1-5 (not shown) a supplementary switch is shown with a single set of contacts operated from the second wheel of the clockwork train and giving only half the number of flashes. In Fig. 7 (not shown) a modified arrangement of fixed and movable contacts d-f is illustrated.
Patent GB-922116-A (GB)
Title: Improvements relating to flexible pipes, conduits and the like
Inventor: DUDLEY ARTHUR
IPC: F16L59/153
Filed: 1960-08-12
Abstract: 922,116. Flexible pipes. BAXTER WOODHOUSE & TAYLOR Ltd. Nov. 9, 1961 [Aug. 12, 1960], No. 27940/60. Class 99(2). A flexible pipe comprises layers 1, 4 of synthetic foam material laminated together, and a pre-fabricated coil spring 3, e.g. of metal or a plastic, of a sufficiently open pitch for the coils to be free to move relatively to each other by distortion of the adjacent foam material. As shown, the spring 3 is disposed between the layers 1, 4 which are made up into tubular form from flat sheet, and there is an external air-impervious layer 6 of textile fabric, such as nylon cloth, or polyvinyl chloride sheet; there may be an internal air-impervious layer. In a modification, the pipe is formed by two layers of foam sheet with an intermediate layer of fabric or plastic sheeting, apertured to preserve a balance of pressure on the two sides thereof, an external spring coil, and an adhesively-secured overall covering of fabric or other air-impervious sheet. In making the pipe, a shield or layer of fabric and a sheet of foam material are attached to a mandrel and the assembly entered into a coil spring, a second mandrel being then inserted into the shield, or the shield is inflated, so as to expand the foam into and slightly proud of the spring, a further sheet of foam material being placed around the spring and caused to adhere to the inner layer.
Patent GB-824581-A (GB)
Title: Improvements in or relating to devices for filing by means of suspended files
IPC: B42F15/00
Filed: 1957-09-04
Abstract: 824,581. Filing papers; indexing. VINCENS, R. Sept. 4, 1957 [Sept. 4, 1956], No. 27991/57. Classes 16 and 146(1) A suspension filing system comprising a frame 1 to be secured in a cabinet, suspension bars 13 and bars 24 for the concertina connection of the files and files 17 adapted to the bars 13, 24, has the frame 1 formed by two cross members 2 of a length corresponding to that of the files 17, two extensible longitudinal rails each formed by two parts 3a, 4a and 3b, 4b in the form of partially covered gutters 5a, 6a and 5b, 6b open at 7a, 7b towards the interior of the frame and sliding one inside the other, and sliding stops 8, 9 disposed at the rear end of each cross member 2 to adjust the width of the frame 1 to the size of the cabinet. Each stop 8 has a right angled end 9 to engage the rear of the cabinet and at its other end has a longitudinal slot 10 and is mounted to slide in the U-section of the cross-member 2 where the slot 10 engages a bolt 11 and the strip is secured by a nut 12. Each suspension bar 13 has each end 14 bent at right angles and a hook 15a, 15b welded thereto, the hook 15b being deeper to assist insertion over the rear gutter edge 5b. The file 17 has a double surface secured at 16 over the bar 13 and riveted at 21 near its lower edge, the outer surface being doubled over under the rivets. The inner surface is continued to form a base 18 and second short face 19 terminating in a flap 20. The connecting bar 24, lying outside the outer surface, is held by passing through slots 22 therein so that notches 23 in the bar lie under the rivets 21 and the flap 20 of one file 17 is threaded over the bar 24 on the adjacent file. Indexing. The front of each file 17 is bow-shaped and a label holder 25 similarly shaped is pivoted on a rivet 26 through the double surface to slide on the edge.
Patent GB-484967-A (GB)
Title: Improvements in power-driven coal and rock cutting implements
IPC: E21C25/64
Filed: 1937-10-14
Abstract: 484,967. Cutting coal and rock. NEUENBURG, H. Oct. 14, 1937, Nos. 28002 and 28003. Convention dates, Oct. 14, 1936 and Oct. 5, 1937. [Class 68 (i)] A manually-supported coal and rock cutting implement has two symmetrical cutters or sets of cutters reciprocating in opposite directions in arcuate paths which meet or overlap. In Fig. 1, the sets of cutters 12, 12<1>, are mounted in arcuate holders 13, 13<1>, with rib. guided in arcuate slots in the casing 10, each holder having teeth 44 engaging a pinion 21 and one of the holders being connected through rod 14 and guided cross-head 40 to a reciprocating piston 15. The cutters are held in the holders by pivoted catches 42 pressed by springs. In another form, the holders are reciprocated by a rotary motoi acting through bevel gears and a crank In Fig. 6, the sets of cutters 12, 12<1>, art carried by a common holder 50 on a shaft 51 ; the cutters are held in the holder by wedges 52 with resilient extensions through which fixing bolts 54 are passed.
Patent GB-703238-A (GB)
Title: Improvements in free piston machines, in particular in free piston auto-generators
IPC: F02B71/06
Filed: 1949-11-01
Abstract: 703,238. Free piston gas generators and compressors. SOC. D'ETUDES ET DE PARTICIPATIONS, EAU, GAZ, ELECTRICITE ENERGIE SOC. ANON. Nov. 1, 1949 [Nov. 5, 1948], No. 28008/49. Classes 7(1) and 7(2) In a gas generator or compressor in which the outward stroke of a piston 2 rigid with a compressor piston 3 is produced by internal combustion and the inward stroke by the pressure in an accumulator chamber on the outer side of the piston 3, the inner side forming a compressor chamber, the quantity of air in the accumulator is regulated by a stabilizer controlled in accordance with at least two working pressures e.g. the delivery pressure of the machine and the mean pressure in the accumulator, and the stablizer is such that the maximum pressure of combustion and the overall compression ratio of the machine increase when the delivery pressure increases and decrease when the delivery pressure decreases. As shown, the pressure in the accumulator chamber is varied by means of a valve 12 controlled by a piston 13 acted on by the pressure in a compressed air receiver 10 and the pressure in the accumulator chamber, the former acting through a calibrated conduit 16 and the latter through a calibrated orifice 15. When the valve is raised from its neutral position in which it is shown, air can enter the accumulator chamber through ports 23, chamber 19, non-return valves 21, chamber 20 and ports 22. When the valve is lowered air can flow out of the chamber in a similar manner. A pressure other than that in the chamber 10 can be used to control the valve, for example the delivery pressure of the generator. In order to obtain an increase in the final compression pressure during the startperiod, a modification shown in Fig. 4 can be used. In this modification a valve 25 is employed to restrict passage of air from the accumulator chamber to the space above the valve operating piston 13. The pressure in the space 10 is transmitted to a space above a piston 27 by a conduit 32 and when this pressure rises it opens the valve 25, and the operation is as described with reference to Fig. 1. In another modification in addition to the orifice 15 connesting the accumulator chamber to the space above the piston 13 there is a passage leading from the accumulator chamber to a port in the wall of the cylinder 14 in which the piston 13 operates. During starting the port is closed by the piston 13 but it is uncovered when the pressure rises and moves the piston 13 downwardly. A similar operation could be obtained by producing, during starting, an increase in the pressure acting below the piston 13. A device such as a cam can be inserted between a part which is under the action of at least one of the controlling pressures and the valve 12. The generator is designed with a view to making the final compression pressure vary between its maximum permissible pressure for maximum load and its minimum permissible pressure for minimum load.
Patent GB-417629-A (GB)
Title: Flexible transmission couplings
IPC: F16D13/68
Filed: 1933-10-11
Abstract: 417,629. Flexible couplings. STANLEY, G. E., 92, Godiva Street, Coventry. Oct. 11, 1933, No. 28041. [Class 80 (ii).] A flexible coupling, more particularly for coupling a clutch disc 12 to its hub 13, comprises coaxial driving and driven members, one of which is formed of two similar cup-like plates 15 secured together to form an internal recess and pierced by a circle of holes to support elongated resilient members 19 having their main axes parallel to the axes of the plates 15. The members 19 are engaged at their centres between adjacent pairs of radial arms 14 on the other coaxial member. The resilient members 19 may consist of a cylinder of rubber enclosed in a split metal tube 22. Alternatively a laminated tubular member 22 may be used.
Patent GB-284045-A (GB)
Title: Improvements in or connected with tipping apparatus for wagons and the like
IPC: B65G67/00
Filed: 1926-11-09
Abstract: 284,045. Biles, A. W. Nov. 9, 1926. Tipping -apparatus.-Apparatus for tipping a wagon with upward movement, e.g. for discharging over a wall, comprises a main frame A pivoted on an axis 2, a rail platform B pivoted on the frame so as to bring the wagon against a side support C, a top support E for the wagon mounted on a carrier D pivoted on or near the axis 2, and link connections such as F, G between the frame and the carrier. The link F is weighted so that when the main frame A is tilted about the axis 2, as shown in Fig. 6, the weight of the link F holds the wagon against the rails. In another arrangement the carrier D extends below the pivot 2, and the link G is below the pivots 4, 2 in Fig. 4.
Patent GB-209827-A (GB)
Title: Improvements in and relating to power transmission belts
IPC: F16G5/18
Filed: 1922-10-17
Abstract: 209,827. Firminger, H. S. W. Oct. 17, 1922. Belts. - A driving-belt consists of a bicycle chain 1. the links of which are connected together by hollow or axially grooved pivot pins 5, and friction pads 2, of leather or the like, secured by independent fastening members 4 passing into the grooves or recesses of the pivot pins 5 without playing any part in the assembly of the chain links. As shown, the fastening members 4 consist of pieces of bent wire passing through hollow pins 5 and to relieve them of driving stresses each friction member 2 has a detent. Fig. 3, to register with the links 3 of the chain. Rollers may be mounted upon the bushes 8 of the inner chain links to render the belt suitable for both belt and chain driving.
Patent GB-827082-A (GB)
Title: Improvements in or relating to window frames
Inventor: HYLAND THOMAS BERTRAM
IPC: E06B3/34
Filed: 1956-09-15
Abstract: 827,082. Windows. HILLS & SONS Ltd., F. Dec. 16, 1957 [Sept. 15, 1956], No. 28271/56. Class 20(3) A window frame comprises top and bottom frame members 10, 11 of the same cross-section providing a longitudinal channel 14 which is engaged by the tongue 16 of a weather strip 15, a window board or sill 17 being secured directly to the bottom member 11. A foot stop 18 is also secured to member 11. In a modification, Figs. 6, 7, the window is double glazed with panes 28, 29 the sash parts 20a, 20b being connected together by hinges 30 and clamped by removable locking screws 31. A sliding stay 32 holds the panes steady when they have been separated.
Patent GB-1124291-A (GB)
Title: Improvements in or relating to apparatus adapted for use in the manufacture of ceramic ware
Inventor: PODMORE DENNIS
IPC: B28B5/08
Filed: 1964-07-09
Abstract: <PICT:1124291/C1/1> A hollow pottery ware roller shaping machine comprises a heated roller 124 driven by a motor 128 in a housing 126 all of which are mounted at one end of a counterweighted arm 130 pivoted on a shaft 132 having a depending arm 136.  The arm 136 has a lower cam follower 138 engaging a cam 140 on a shaft 74 driven by gearing from a main motor 88 to control movement of the roller 124 into and out of the operative position in contact with clay carried by moulds 40 carried on radial arms 38 of a turn-table (not shown). The moulds are located from below by a jigger head 142 comprising a rotary chuck 144 on a hollow vertical spindle 146 connected to a suction pump (not shown) and mounted in a sleeve 150 supported for vertical movement and having a roll 158 along its length constituting a cam follower.  The roll 158 engages a cam 160 on the shaft 74 so as to raise and lower the chuck in timed relation with the roller 124. The chuck is rotated when in the raised position by a motor (not shown) operating by a spring 174 and co-operating clutch-plates 162, 172 on the lower end of the spindle 146.
Patent GB-262407-A (GB)
Title: Process and apparatus permitting the use of heavy oils in internal combustion engines
IPC: F02M27/02
Filed: 1926-11-10
Abstract: 262,407. Soc. Anon. Le Carbone. Dec. 5, 1925, [Convention date]. Oil gas.-A mixture of air and atomized heavy fuel is subjected to the catalytic action of activated carbon at a temperature higher than 250 C. immediately before its admission to an internal-combustion engine. The carbon a may be mounted in a casing b, Fig. 2, surrounded by an exhaust jacket (not shown) and adapted to be connected between the carburettor and the induction pipe; the carbon may be in the form of a solid block or may be provided with passages e. In a modification, the carbon a, Fig. 5, is situated within the carburettor body k, being mounted on the fuel nozzle i, and is covered by a metal sheath p provided with an outlet orifice q. The carburettor body k is provided with a heating-jacket n, and is movable relatively to the carbon, being normally situated to leave an annular outlet passage o, into which the passages e open, between the body k and the carbon. The body k may be fixed and the carbon movable. According to the Specification as open to inspection under Sect. 91 (3) (a) the catalyst, which may be other than activated carbon, may be used in the cold or may be heated by a hot water jacket. This subject-matter does not appear in the Specification as accepted.
Patent GB-954142-A (GB)
Title: Method for producing ball points
IPC: B43K7/00
Filed: 1962-07-25
Abstract: 954,142. Making ball point pens. A. J. FAGARD & CIE. July 25, 1962 [Aug. 10, 1961], No. 28648/62. Heading B3A. [Also in Division B6] A method of making a ball holding section for a ball point pen is characterized in that a bimetallic bore B having a central core 1 of e.g. brass and an outer sleeve 2 of tempered chromium plated steel or stainless steel is machined to produce an ink channel 3, capillary channel 4 and cylindro-conical housing 5 for housing a ball in the core 1 and a conventional external form 2a.
Patent GB-152291-A (GB)
Title: Convertible bedsteads and the like articles of furniture
IPC: A47C19/04
Filed: 1920-10-08
Abstract: 152,291. Bertrand, E. J. L. Oct. 10, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Bedsteads convertible into seats &c.-A bedstead, convertible into a cradle, child's bed, divan, seat, what-not, table &c. consists of an extensible quadrangular cage, the constructional members being arranged to slide into and upon one another so as to permit adjustment as regards height, length and width. Figs. 3 and 4 show the arrangement used as a child's cot, and Figs. 8 and 9 show the arrangement used as an arm chair.
Patent GB-1310174-A (GB)
Title: 1,2,4-thiadiazolyl ureas
IPC: C07D285/08
Filed: 1970-06-12
Abstract: 1310174 Thiadiazolylureas; herbicidal compositions ESSO RESEARCH & ENG CO 12 June 1970 [22 Oct 1969] 28591/70 Heading C2C The invention comprises compounds (1) where R 1  is C 4-8  alkyl, or C 7-8  cycloalkyl; R 2  is hydrogen or methyl or ethyl; R 3  is hydrogen, methyl or methoxy and R 4  is hydrogen or methyl, which may be made by reacting a 5- amino-1,2,4-thiadiazole with an isocyanate, in the presence of a solvent; with an acid chloride in the presence of a solvent and an acid acceptor; or with phosgene and reacting the resulting carbamoyl chloride with the appropriate amine or hydroxylamine. Selective herbicidal compositions comprise the compounds of the invention with suitable carriers in such forms as solutions, emulsions, "suspensions", powders, pastes and granules.
Patent GB-721071-A (GB)
Title: Improved photographic materials for use in the preparation of gauze-type printing screens
IPC: G03C1/46
Filed: 1952-11-13
Abstract: 721,071. Photographic gelatino-silver halide materials for preparation of gauze-type printing screens. KODAK, Ltd. Nov. 13, 1952 [Nov. 14, 1951], No. 28645/63. Class 98 (2). A flexible transparent support as of cellulose ester or ether or synthetic resin such as polyvinyl acetate carries a first gelatine-silver halide layer overcoated with a second similar layer which may be half the thickness of the first layer and which contains a yellow colouring matter such as colloidal silver, lead chromate pigment or Chrysophenin. The two emulsion layers may contain a tanning developing agent such as 4-phenyl catechol and a resin such as polymethyl acrylate or an ethyl acrylateacrylonitrile copolymer. To form a printing screen exposure is effected in contact with a positive image through the support and the material is developed in alkaline sodium sulphite solution, immersed in an acetic acid stop bath, and washed in warm water to remove all untanned undeveloped emulsion; after which the gelatin side is placed in contact with a waterwetted silk screen and dried; and chloroform is applied to the silk side to soften the support or else the latter is heated for the same purpose, and then the support is stripped off. The yellow colouring matter in the upper layer of the material acts as antihalation backing and also limits the effect of exposure, permitting more exposure in small aperture areas of the positive and so increases latitude. Disadvantages of a method of preparing a silk screen by transfer of a tanned relief image made from a single emulsion layer containing 4-phenyl catechol are discussed. Specification 587,957 is referred to.
Patent GB-469462-A (GB)
Title: Improvements in, or relating to, apparatus for preventing discharge of coal dust from chimneys into the atmosphere
IPC: B01D47/06
Filed: 1935-10-17
Abstract: 469,462. Washing smoke. LAMINNE, L. DE. Oct. 17, 1935, No. 28658. Void. Convention date, Oct. 17. 1934. [Class 55 (ii)] Smoke is washed at the top of a chimney by water sprayers 2 projecting hollow conical jets of water against the chimney or a sleeve 11 therein or a tube 8 fitted thereabove. Water under pressure is fed by pipes 3 tangentially into sprays 2 and projected as shown transversely of the gas. Water is collected by an inclined trough 9 at its base and discharged at 10. The tube 8 may be fitted with an elbow or may be of inverted-V-shape with sprayers therein and with a trough at the base of the arm outside the chimney.
Patent GB-1145763-A (GB)
Title: Electrical circuit
IPC: G11C19/28
Filed: 1966-06-27
Abstract: 1,145,763. Counters; shift registers. RADIO CORPORATION OF AMERICA. 27 June, 1966 [9 July, 1965], No. 28811/66. Headings G4A and G4C. [Also in Division H3] In a triggering circuit for a bi-stable circuit, Fig. 1, comprising gate A and gate B clock pulses 144 are steered to one or other of the two triggering inputs by means of a transistor gate circuit. With a positive potential at S c  (logical 1) transistor 110a conducts, and a positive clock signal at 105 passes through this transistor to charge capacitor 120a. During the following negative clock signal, transistor 100a conducts, and the negative clock signal is fed through it to the reset input 15b of the bi-stable circuit, thus reversing its state. With a logical "1" at R and a logical "0" at S c  the clock pulses first switch on transistor 110b to charge capacitor 120b, then switch off transistor 100b to feed a trigger signal to set input 15a, thus reversing the state of the bi-stable circuit again. The logical "0" at S e  renders transistor 130a conducting to discharge the capacitor 120a. A separate clock pulse source may be provided for the "a" and "b" circuits, Fig. 4 (not shown). When triggering a single bi-stable circuit, the necessary logical signals to apply to the inputs S c , R c  are derived from the outputs 70a, 70b, Fig. 2 (not shown). In a second embodiment, Fig. 6, a logical "1" at output 70a of the bi-stable circuit switches on transistors 240a, 224a and shorts capacitor 220a. At the same time, the logical "0" at 70b switches off transistors 240b, 224b to allow capacitor 220b to charge from a positive clock signal at 305 via transistor 210b. When the clock signal goes negative, the charge on capacitor 220b switches on transistor 200b to apply a reset pulse to the bi-stable circuit, thus changing its state. A number of bi-stable circuits as described may be connected in cascade as a counter, Fig. 3 (not shown), or as a shift register, Fig. 5 (not shown). In the bi-stable circuit itself, application of a negative input at 15a switches off transistors 18a, 32a, 42a and switches on transistor 50a to produce a positive "1" output at 70a. This is fed to point 15b, switching on transistors 18b, 32b, 42b and switching off transistor 50b to produce a "0" output at 70b, which is in turn fed to point 15a to maintain the state of gate A. A negative signal fed to point 15b reverses the state of the circuit.
Patent GB-782183-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23G5/44
Filed: 1954-10-06
Abstract: 782,183. Combustion apparatus. COHEN, S., and DURBER, E. F. Oct. 6, 1955 [Oct. 6, 1954], No. 28827/54. Class 51 (1). [Also in Group XXX] In a furnace burning sawdust the fuel is extracted from a portable hopper-fed receptacle 2 by an electric fan 5 and blown into the furnace through a pipe 6 having a flared discharge opening 7. A slidable plate 3 controls the fuel flow from hopper to receptacle. A layer of solid fuel may be burnt on the furnace grate for sawdust ignition purposes. According to the Provisional Specification, the furnace may burn coal dust or anthracite dust.