baber/WOPTO huggingface dataset:
Patent GB-641886-A (GB)
Title: Improvements in or relating to cam devices
IPC: F16H25/00
Filed: 1946-11-04
Abstract: 641,886. Cam mechanism. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 4,. 1946, No. 32755. Convention date, March 3, 1943. [Class 80(iii)] [Also in Group XXXVII] A cam mechanism for giving a member,. such as the contact of an electric switch, a rapid movement in both directions comprises a cam 1, Fig. 2, movable in the direction A and having a profiled edge 2 cooperating with a follower member 4 loaded by a spring 5. On movement of the cam 1 the spring 5 is gradually loaded until the follower 4 drops rapidly into the re-entrant portion 6 of the cam which may move a switch contact into an " on " position. Movement of an auxiliary cam member 9 in a direction B gradually loads the spring 12 of an auxiliary follower 7 until this follower drops into a re-entrant portion 10 of the cam 9. During this movement the end 13 of this member 7 engages a hooklike portion 14 on the follower 4 to move the latter quickly to its original " off " position. The auxiliary member 9 may be coupled to the member 1 or may be operated independently. In the arrangement of Fig. 4 rotary main and auxiliary cam discs 20, 21 are provided for actuating a lever arm 23. On rotation of the discs in the direction of arrow C the end 29 of lever 23 is adapted to fall rapidly into a reentrant 27 of the disc 20 under the tension of a spring 30 connected between lever 23 and an auxiliary lever 24. The spring 32 of this auxiliary lever is gradually loaded by the cam 21 until the re-entrant portion 33 passes the end 31 of this lever when it moves rapidly and engages an abutment 26 of lever 23 to move the latter back to its original position. In a modification of this last arrangement the cam discs are driven by a pin engagement with an arm on the driving shaft and the re-entrant portion 27 is provided with a bevelled edge co-operating with a bevel on the follower. The action in this case when the follower drops into the re-entrant is to advance the discs in front of the driving means and speed-up the operation of the return movement. Applications of the mechanism mentioned are for the intermittent operation of a stylus on to a registering strip in an automatic registering device and for an electric device for checking the rotation of a shaft in which the cam operated member effects a make and break of an electric circuit to maintain a condenser charged and a relay energized.
Patent GB-668842-A (GB)
Title: Process of manufacturing porous resilient articles of fibrous materials
IPC: B68G5/00
Filed: 1948-12-20
Abstract: 668,842. Agglutinated fibrous articles. VELA. TEX, N. V. Dec. 20, 1948 [Dec. 30, 1947], No. 32842/48. Class 140. Resilient articles consisting of fibrous mass bonded by rubber, are made by filling a mould or vessel with the fibrous mass and rubber latex or other rubber dispersion which is then coagulated, a relative motion being produced between the mass and the dispersion during coagulation, as by subjecting the mould or vessel to a shaking, vibrating, oscillating or rotating motion. The rubber dispersion, which may be natural latex or an artificial dispersion of natural, reclaimed or synthetic rubber, is preferably used in dilute form, and reinforcing or other fillers, plasticizers, vulcanizing agents and accelerators may be mixed with it before it is added to the fibrous mass. Coagulating agents, such as acetic acid and electrolytes having multivalent positive ions may be added during or after the mixing. After coagulation, the article may be removed from the bath or mould, drained, dried and vulcanized, or the vulcanization may be carried out in the coagulating bath or mould. To prevent the soft impregnated mass from collapsing during removal from the bath, the liquid contents may be frozen, the entire contents of the bath removed, and allowed slowly to thaw and drain.
Patent GB-1234834-A (GB)
Title: Improvements in position determining devices
Inventor: JOHNSTON JAMES STEWART
IPC: G01D5/26
Filed: 1968-07-10
Abstract: 1,234,834. Photo-electric position measurement. ROSEMOUNT ENG. CO. Ltd. Aug.26, 1969 [July 10, 1968], No.32882/68. Heading G1A. In position determining apparatus electrical signals from photo-cells, connected to optical fibres of fluorescent material receiving light from a source via a mask or grating, the source or mask being movable, represent the required position. In the embodiment of Fig.2 parallel light fibres 20 each connected to a photo-cell 21 are positioned behind a pair of an inclined diffraction gratings 26, 27 the outputs of the photo-cells being sequentially connected by a scanner 24 to a common load resistor across which a step waveform Vo Fig.3 (not shown) is obtained. By examining the phase of the waveform relative to the phase of the scanning signal the position of the light beam relative to one pitch of the gratings may be determined. The apparatus may be used to effect the fine measurement in a system in which the coarse measurement is determined by a coded scale and inclined light beams in a V scan technique. In the embodiment of Fig. 5 a rotatable radial grating 56 is moved in front of a fixed grating 53 and a grating 52 attached to the tool carrier. Light fibres 50, 51 sensing light beams 54, 55 via pairs of the grating are connected to photo-cells the phase of the signal from the fibre 51 with respect to the signal from the fibre sensing the grating 52 fixed with respect to the carrier acting as a measure of the displacement of the carrier. In the embodiment of Fig. 6 (not shown) parallel fibres (60) are positioned behind a mask (62) having alternating opaque and transparent bands. The light beams, one for each fibre, are displaced by one quarter of the pitch of the mask so that the outputs from photo-cell (61) connected to the fibres when cyclically connected to a common load give a stepped signal the phase of which relative to a datum gives the required position. In a modification of this embodiment Fig. 8 (not shown) the bands of the mask are staggered. In either embodiment the light beam(s) or the mask may be moved with the members the position of which it is required to measure.
Patent GB-906997-A (GB)
Title: Improvements relating to lawn edge cutters
IPC: A01G3/06
Filed: 1957-10-22
Abstract: 906,997. Hand shears. SINGLETON, T. Oct. 7, 1958 [Oct. 22, 1957], No. 32900/57. Class 30. Means for collecting grass cuttings when using lawn edge trimmers having scissor-like blades and long handles, comprises a tray 3 for attachment to the lower blade of the edge cutter on the side which is turned away from the lawn edge when the edge cutter is in use, and a clamping member adapted to be bolted to one of the side walls of the tray so as to clamp the cutter blade between the clamping member and the outside of the tray.
Patent GB-173224-A (GB)
Title: Improvements in fuel injecting devices for internal combustion engines
IPC: F02M59/02
Filed: 1921-12-09
Abstract: 173,224. Tartrais, E. H. Dec. 22, 1920, [Convention date]. Check lift valves.-A non-return valve for use in connection with a pump supplying fuel to an internal combustion engine is provided with a small groove 5 in order to relieve pressure in the fuel feed pipe when injection is not taking place. A needle controlled by-pass may take the place of the groove. A light-loaded return valve may be provided in a non-return valve to relieve pressure in the space above the valve. Or a non- return valve provided with a lightly loaded return valve, may take the place of the pump delivery valve.
Patent GB-198713-A (GB)
Title: Improvements in apparatus for regulating the admission of air to furnaces
IPC: F23N3/06
Filed: 1921-12-09
Abstract: 198,713. Liese, H. M. Dec. 9, 1921. Air supply, regulating.-In order to regulate the air supply to a furnace in accordance with the grate resistance, the air pressure on the ashpit side of a damper 3 controlling the admission of air to the ash-pit is communicated through a pipe 7 to a water-supply vessel 8 to control the supply of water to a water-wheel 15, which may be rotated in either direction 'to operate through pulleys 26, 27 and cords 28, 29 a damper 30 or the like in the smoke flue or may remain at rest. The vessel 8 comprises an inner vessel 9 and a vertically adjustable vessel 10 and is provided with an annular hood 11 having depending flanges dipping into water seals formed between the vessels 8, 9, 10. Water is supplied continuously through a pipe 32 to the inner vessel 9 and overflows into the outer and inner vessels 8, 10 and thence through pipes 13, 16 to the waterwheel. When, owing to consumption of fuel, the draught in the ash-pit increases, the drop of pressure in the ash-pit is communicated through the pipe 7 to the space beneath the hood and more water flows into the vessel 8 and through the pipe 13 thus causing the water-wheel to rotate so as to close the damper until normal conditions are again established. When the grate becomes clinkered, more water flows into the vessel 10 and thence through the pipe 16 causing the water-wheel to rotate in the opposite direction and open the damper 30. The damper is closed during stoking by opening the fire-door which actuates through rods 5, 6 a slide valve 14 so as to close the pipe 16 and allow the water from the vessel 10 to flow into the pipe 13 and cause the water-wheel to rotate to close the damper. An extra air door 2 on the fire-door is opened by the operation of opening the fire-door and gradually closes after the fire-door is closed. The rod 6 is connected to a valve 22 which is opened by the opening of the fire-door to allow the escape of water from a water receptacle 17 below the water-wheel and thus cause the fall of a float receptacle 18 connected by a lever 19, 20 and chain 21 to the extra air door 2.
Patent GB-952363-A (GB)
Title: Heat treatment of steels with a mixed gas of nitrogen and hydrocarbon
IPC: C23C8/22
Filed: 1960-09-27
Abstract: <PICT:0952363/C3/1> A process of heat treating steel comprises carburizing the steel in the presence of a gas consisting of 99.5-98% of nitrogen and 0.5-2.0% of a hydrocarbon, the residual gas from the carburizing process being used for one or more of hardening, tempering, normalizing, and annealing.  The hydrocarbon may be benzene. As shown, a series of furnaces A-D may each be provided with valved pipes 2a-2d for the addition of the hydrocarbon, and nitrogen may be supplied through a pipe 1. The furnaces may be interconnected by piping and valves and a pump 17 so that one or more furnaces may be provided with caruburizing gas and the remainder with the residual gas from the carburizing furnace.
Patent GB-1180157-A (GB)
Title: Process for the Joint Manufacture of 2,2,3- and 1,2,3-Trichlorobutanes
IPC: C07C17/02
Filed: 1968-07-11
Abstract: 1,180,157. Trichlorobutanes. KNAPSACK A.G. 11 July, 1968 [12 July. 1967], No. 33118/68. Heading C2C. 2,2,3- and 1,2,3-trichlorobutanes are produced simultaneously by reacting butene-(2) with chlorine in a molar ratio of 1: 2 to 2.2, the reaction being effected in the presence of a solvent, e.g. 1,2,3-dichlorobutane, at between 60‹ and 200‹ C. and at between 0.15 and 7 atmospheres absolute and the resulting reaction mixture being separated into its constituents by distillation. Tetrachlorobutones may be produced as by-products. The butene-(2) used may be diluted with n-butane and the butene- (2)/butane mixture used may be the C 4 -mixtures obtained as by-products in ethylene production. The individual trichlorobutanes produced may be converted to 2-chlorobutadiene-(1,3), e.g. 2,2,3-trichlorobutane may be converted to 2- chlorobutadiene-(1,3) by direct thermal dehydrochlorination and 1,2,3-trichlorobutane may be dehydrochlorinated with an amine or phosphine to dichlorobutenes which may then be thermally dehydrochlorinated, optionally. together with 2,2,3-trichlorobutane, to give 2- chlorobutadiene-(1,3) also.
Patent GB-195435-A (GB)
Title: Turbine engine to reverse with one valve
IPC: F01D1/30
Filed: 1922-02-21
Abstract: 195,435. Smith, R. S. Feb. 21, 1922. Circular-flow type, reversing.-A reversible steam &c. turbine comprises two chambers E, M containing bladed rotors F, L and an intermediate chamber J with a bladed rotor G to which steam passes axially through ports H from the chamber E and exhausts through ports K to the chamber M.
Patent GB-419336-A (GB)
Title: Improvements in or relating to handle-bars for cycles, motor-cycles, and the like
IPC: B62K21/14
Filed: 1933-11-28
Abstract: 419,336. Handle - bars. NORTON MOTORS, Ltd., and CARROLL, A., Bracebridge Street, Aston, Birmingham. Nov. 28, 1933, No. 33240. [Class 136 (iii).] In a resilient mounting for the handle-bars of motor or other cycles, the handlebars are mounted in one or more rubber or other resilient bushes or sleeves in a fitting carried by the steering-stem, and are also connected to a part of the steering-stem by means which permit movement of the bars in a substantially vertical direction but are rigid against movement in the plane in which the bars move for steering. As shown, the handle-bar a is mounted in a split lug b of which the lower half is integral with the crown c of the steering-stem and the upper half is detachably secured to the lower half by bolts d. At each end of the lug b is a cylindrical chamber in which is located a rubber bush f fitting tightly around the bar a. The direct connection between the bar a and the steering- stem consists of a thin resilient steel &c. plate secured to the front of the bar, or (as shown) folded at h around and welded &c. to the bar a, the doubled ends of the plate projecting forwardly through a slot j in the lug b in the form of two fork limbs k, which pass on either side of the upper end of the steering-stem and are detachably secured by studs l to bosses m on the bearing housing n for the link spindle of the spring fork.
Patent GB-961188-A (GB)
Title: Improvements in or relating to tubular bodies and to a method of making the same
IPC: F16L9/00
Filed: 1960-09-28
Abstract: 961,188. Non-metallic tubes. K. WILLNER. Sept. 28, 1960 [Sept. 30, 1959], No. 33261/60. Heading F2P. A tube is formed from an elongated band bent about the longitudinal axis thereof such that the free edges of the band are near each other and there are means for joining the free edges together while leaving an opening 3 or openings between the edges. The tube has a number of sections 4, 5 and 6 of relatively high resistance to bending, there being between those sections a region or regions 7 and 8 of lesser resistance to bending, the tube at said region or regions still having sufficient strength to withstand force transmitted from section to section. As shown, the tube comprises an elongated band, e.g. of transversely corrugated plastic or rubber-like material, and may be also formed to triangular or circular shape. The free edges of the band may be formed with teeth 39, Fig. 17, which interlock with each other, Fig. 11, or interlocking of the edges may be achieved, by the use of a rod 27, Fig. 13, by bending over the teeth or by outwardly bending the teeth and encompassing the teeth by a channel-shaped clamping member 37, Fig. 16. Also, locking of the edges of the band may be accomplished by the use of members V-shaped or W-shaped in cross-section. In making the tube the band having a number of sections of relatively high bend resistance with adjacent sections joined at a region of relatively low bend resistance, is drawn through a die having the inlet and outlet sides thereof corresponding to the cross-section of the band and the crosssection of the tube to be produced, and the die being so shaped that bending takes place only on the regions of low bend resistance.
Patent GB-1248729-A (GB)
Title: Improvements in latches
IPC: E05B15/00
Filed: 1970-07-09
Abstract: 1,248,729. Latches. ATWOOD VACUUM MACHINE CO. 9 July, 1970 [11 July, 1969], No. 33283/70. Heading E2A. A latch, e.g. a motor-car bonnet latch, for securing together two relatively movable parts comprises a housing 14 for mounting on one part and formed with an opening 20 to receive a striker 10 adapted to be carried by the other part, latching means pivotally mounted on the housing and operable to secure the striker in the opening, and a release lever 40 which is pivotally mounted on the housing and is operable to release the latching means and at the same time to move at least partially across the opening 20 in the housing, there being a cam surface 54 on the lever which lies in the path of the striker when the lever is at least partially across the opening. As shown, the latch assembly comprises a catch 24 having a ratchet 26 and an opening 28 which provides a positive lock for holding the striker in the housing; a pawl 32 cooperates with the ratchet and is urged into locking relationship therewith by a spring 36, and the release lever has cam surfaces 52, 54. In operation, by pulling on the wire 46 the lever 40 and pawl 32 are pivoted in a counterclockwise direction to move the projection 34 from the ratchet 26 and allow the catch to pivot in a counter-clockwise direction whereby the striker is released, the spring 44 returning the lever 40 to the initial position thereof. Where breakage of the wire 46 or rust or dirt inhibit movement of the lever back to the full-line position as shown in the figure, upon release of the catch, upward movement of the striker against the cam surface 54 causes the lever to pivot to the full-line position; similarly, on downward movement of the striker the latter engages the cam surface 52 to move the lever to the full-line position. Figs. 5, 6 and 7 (not shown) illustrate modifications of the ratchet and pawl mechanism.
Patent GB-1004619-A (GB)
Title: Apparatus for turning cigarette packages inside a packing machine
IPC: B65B19/06
Filed: 1962-08-30
Abstract: 1,004,619. Orientating device for cigarette packages. O. NIEPMANN and GUNTER MONNINGHOFF, [trading as MASCHINENFABRIK NIEPMANN & CO.]. Aug. 30, 1962 [Nov. 22, 1961], No. 33291/62. Headings B8C and B8S. An apparatus 1, for turning cigarette packages through 90 degrees inside a packing machine has two helical guiding wires 4, 5 and four further guide edges such as those shown as 8a, 9a formed by sheet-metal plates. The wires and plates are adjustable in the horizontal direction for different sizes of package. The apparatus includes a reciprocating lever 13 to assist movement of the packages 3, into the apparatus.
Patent GB-1112556-A (GB)
Title: An electronic logic network
IPC: H03K3/027
Filed: 1965-08-04
Abstract: 1,112,556. Radio transmitting systems. SOCIETA ITALIANA TELECOMUNICAZIONI SIEMENS S.p.A. 4 Aug., 1965 [4 Aug., 1964], No. 33308/65. Heading H4L. In a radio communication system a logic circuit is provided which switches the transmitting aerial over to a standby transmitter in the event of a failure in the modulating circuit or a drop in the output power of the transmitter in use, and in the event of a fault in both transmitters operates an alarm. In the system described, Fig. 1, a selected one of a pair of transmitters TR1, TR2 may be connected to the aerial A1 via a switch KT. Signals W1 or W2 indicate an excessive fall in the output power of the transmitters TR1, TR2 respectively and signals C1, C2 indicate a modulating fault in the corresponding transmitter. A logic circuit ET carries out the following operations. The occurrence of signal W1 and/or C1 causes a change over from transmitter TR1 to TR2, the occurrence of signal W2 and/or C2 causes a change over from transmitter TR2 to TR1, and the occurrence of signal W1 and/or C1 together with signal W2 and/or C2 operates an alarm. Furthermore, should the error detecting circuits become faulty a faulty signal will be detected at the remote receiver R which then sends back an error signal T via the remote transmitter TRA which is supplied via the receiver R1C to the logic circuit ET to change over the aerial switch Kt. The logic circuit ET, Fig. 3 (not shown), uses a plurality of NOR circuits and an AND circuit to control a bi-stable providing a signal S to operate the aerial switch Kt and also provides the alarm signal At.
Patent GB-1413867-A (GB)
Title: Room temperature vulcanizable organopolysiloxane compositions
IPC: C08L83/00
Filed: 1973-07-12
Abstract: 1413867 Organopolysiloxane compositions SHINETSU CHEMICAL CO 12 July 1973 [14 July 1972] 33351/73 Headings C3T and C3S A RTV composition comprises (1) 100 p.b.w. of an OH-terminated diorganopolysiloxane of the average formula R a SiO (4-a)/2  where a= 1À9-2À05, and R is an optionally substituted hydrocarbyl, (2) from 2-25 p.b.w. of an alkenyloxysilane of the formula R<SP>1</SP> (4-m) Si(OC(R<SP>3</SP>) = CHR<SP>2</SP>) m , or its partial hydrolyzate, where R<SP>1</SP> and R<SP>3</SP> are optionally substituted monovalent hydrocarbon groups, R<SP>2</SP> is a hydrogen atom or an optionally substituted hydrocarbon group and m is 3 or 4, and (3) a vulcanizing catalyst preferably in an amount of from 0À01-10 p.b.w., and optionally (4) up to 100 p.b.w. of a filler, and (5) 50-200 p.b.w. of an organic solvent. Preferred catalysts are metal salts of carboxylic acids, aluminium alkoxides, amino-alkyl-substituted alkoxysilanes, amines, ammonium salts, quaternary ammonium salts and tetraalkenyloxy titanium. Suitable fillers include pulverized SiO 2 , SiO 2  aerogels, precipitated SiO 2 , fume SiO 2 , mica, diatomaceous earth, quartz flour, ferric oxide, ZnO, TiO 2 ; metal carbonates, e.g. of Ca, Mg and Zn; asbestos, glass wool, carbon black, polystyrene, polyvinyl chloride and polypropylene. Flame retardants, e.g. antimony oxide and chlorinated paraffin, and thermal conductivity agents, e.g. BN may also be present. In the examples RTV compositions are prepared from OH-terminated dimethylpolysiloxanes a methylvinyl polysiloxane or a methylphenyl polysiloxane having viscosities ranging from 1500-100,000 cs at 25 C., a filler when present selected from fume SiO 2  or carbon black; a catalyst selected from dibutyltin dilaurate, 8-aminopropyl triethoxysilane, cobalt naphthenate, n-hexylamine, tetrabutoxy-titanate, tetra(isopropenyloxy)titanium; and a silane selected from methyl-, vinyl-, propyl- or phenyltri(isopropenyloxy)- silane, tetra(isopropenyloxy)silane or methyltri(methyl - 1 - propenyloxy)silane. The compositions cure on exposure to atmospheric moisture and their adhesive to various substrates were determined. They can be used for sealing, caulking and as adhesive and coating materials. The alkenyloxysilanes can be prepared by reacting the chlorosilane of the formula with acetone in the presence of triethylamine as acid acceptor, zinc chloride as catalyst, and benzene as solvent.
Patent GB-989321-A (GB)
Title: Process and arrangement for the continuous manufacture of sheet glass
IPC: C03B18/04
Filed: 1963-08-22
Abstract: In the manufacture of sheet glass by spreading the molten glass on a bath of molten metal, the glass is caused to cover substantially the whole surface of the metal and so protect it from oxidation.  The edges of the glass ribbon are coded to prevent them from adhering to the side walls of the tank.  Metal containers through which a cold fluid is traversed are mounted on or embedded in the walls of the tank at the level of the glass ribbon.  To ensure the progressive cooling of the glass ribbon, heating and cooling elements capable of acting on the molten metal and other elements in the space above the ribbon may be provided. In order to separate the solidification zone from the preceding zone, there may be provided a baffle in the space above the ribbon and a barrier in the floor of the tank of a height slightly less than the depth of the molten metal.