baber/WOPTO huggingface dataset:
Patent GB-1107807-A (GB)
Title: Trenching apparatus
IPC: E02F5/02
Filed: 1966-06-29
Abstract: 1,107,807. Ladder type trench excavators. R. B. PECK. 29 June, 1966 [16 July, 1965], No. 29190/66. Heading E1F. In a trenching machine having a boom structure about which one or more scraper chains are caused to circulate there is provided within the loop or loops of the chain or chains a backboard to prevent back fall into the excavated trench of material scraped from the leading face of the trench by chain supported cutter teeth formed solely by side and front cutting surfaces.
Patent GB-251878-A (GB)
Title: Direction indicator for motor vehicles
IPC: B60Q1/34
Filed: 1925-11-19
Abstract: 251,878. Goldschmidt, J. Nov. 19, 1925. Road-traffic signals on vehicles.-An arm 1 is raised by a Bowden wire 4, and strain is taken from the wire when the arm is in its upper position by means of a sleeve 7 which forms an abutment for the cable sheath 3 and is pressed by the sheath so that its inner end 8 engages a notch in a disc 6 connected to the arm. A spring 11 pressing on a collar 9 withdraws the sleeve when pressure is relaxed to allow the arm to fall.
Patent GB-629832-A (GB)
Title: Improvements in or relating to gas turbine power plants
IPC: F02C6/02
Filed: 1947-11-03
Abstract: 629,832. Heating gases. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Nov. 3, 1947, No. 29252. Convention date, Nov. 2, 1946. [Class 64(iii)] [Also in Group XXVI] Compressed air for the combustion chambers of a gas turbine plant is heated by the turbine exhaust gases in a heat exchanger, Fig. 6, comprising inlet headers 108a, 110a and exit headers 112a, 114a connected by banks of U-shaped tubes 142 of flattened cross-section with internal and external fins. The exhaust gases flow from the outer space 90 to the inner space 102 and then axially to the discharge.
Patent GB-259790-A (GB)
Title: Improvements in or relating to endless conveyor-chains, and guiding means therefor
IPC: B65G19/22
Filed: 1925-11-20
Abstract: 259,790. Rose, W., and Rose Bros. (Gainsborough), Ltd. Nov. 20, 1925. Guiding endless chains.-Side elements 9, or rollers, on the chain 5 rest on bars 11 which extend to the vertical plane passing through the axis 3 of the sprocket 1. Upper bars 12 may be provided to keep the chains from rising.
Patent GB-527074-A (GB)
Title: Improvements relating to hydraulic remote control apparatus
IPC: F15B7/06
Filed: 1938-10-10
Abstract: 527,074. Hydraulic control gear. GREEN, D. S., and PARKIN, W. H. Oct. 10, 1938, No. 29302. [Class 69 (ii)] A hydraulic remote control apparatus with transmitting and receiving stations and a single liquid connec tion of the kind des cribed in Specification 419,310 is controlled so as to be self-locking in any set position, anc the receiving end o: the system comprises a hollow piston 4 working in a cylinder 3 connected by a pipe C to the cylinder 2 of the transmitter A The cylinder C is acted upon by a spring 5, the compression of which can be varied by adjustment of a screw cap 9 on the end of the cylinder, and the piston rod 12 is arranged to actuate a bellcrank lever 14 which operates a rod 16 connected by a spring 18 to the governor of a variable pitch airscrew propeller. The spring 18 acts in opposition to the spring 5, and normally the spring-load on the piston 4 is balanced by the fluid pressure transmitted by the piston 1. As the cylinder 4 moves inwards its spring load increases, and as this is effected bv a counter-clockwise movement of the operating, handle 20 a downward increased pressure on the piston 1 is provided for by fitting a cam 25 on the lever 23 which depresses the piston 1. This cam is acted upon by a spring-pressed roller 26 on a lever 29, and its contour assures increased pressure on the piston 1 as the handle 20 is moved to cause the piston 4 to move inwards. The pressure exerted by spring 18 is small in comparison with that of spring 5, and so when the engine is switched off and the force exerted by the spring ceases, the function of the system prevents movement of the control.
Patent GB-661026-A (GB)
Title: Improved rotary hoe
IPC: A01B33/08
Filed: 1948-11-11
Abstract: 661,026. Agricultural implement. HOWARD AUTO-CULTIVATORS, Ltd. Nov. 11, 1948 [Nov. 25, 1947], No. 29321/48. Class 6(i) A tractor towed rotary hoe comprises two tubular main frames 11, 12 mounted centrally on a box assembly 10 and housing a power shaft connected by gearing to a shaft 44 which is connected to the tractor power take-off shaft 48 by means of universal couplings 46, 47 and a telescopic shaft 45. A draw-bar structure 13 connects the frame to the tractor through a universal joint 49 and rotary draw-bar 50. Side frames 16, 17 are fixed to the frames 11, 12 and are provided with mountings for a hoe rotor shaft which is connected to the power shaft by means of a chain mounted in a casing 18. Arms 20 are pivoted on the side frames and are provided with land wheels 23 which are vertically adjustable by rods 24, 24a held adjustably by locking pins which pass through brackets 25. The machine is lifted from the ground for transport by arms 54 operated by a hydraulic cylinder 52. The arms are connected to the frames 11, 12 by cables 57, 57a and crossed chains 59, 59a which allow the machine to be lifted when it has been swivelled to the right or the left, the chains 59, 59a pulling the machine to a central position before the cables 57, 57a tauten, the cables then supporting the machine when it is lifted.
Patent GB-689017-A (GB)
Title: Improvements in or relating to internal shoe drum brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F16D65/00
Filed: 1951-12-14
Abstract: 689,017. Internal shoe - drum brakes. AUTOMATIC PRODUCTS CO., Ltd. Dec. 14, 1951, No. 29371/51. Class 103 (i). The back-plate for an internal shoe-drum brake is made from the combination of a part 10 of relatively thick sheet-metal, e.g. 18 s.w.g., and a part 15 of lighter sheet-metal, e.g. 16 s.w.g., the two parts being secured together at a large number of points distributed over the whole area of contact. The part 10 is of roughly oblong shape so as to cover only the centre part of the open side of the brake drum and so as to include holes 24, 25 for mounting the actuators and shoe anchor members. The part 15 covers the whole of the open side of the drum so as to form a dust guard but is effective also to increase the strength of the back-plate as a whole. Any suitable method such as spot-welding, projection welding, or riveting may be used to join the plates 10 and 15.
Patent GB-267581-A (GB)
Title: Improved means for stripping cotton from cages and analogous rotating members in preparatory textile machines
IPC: D01G9/00
Filed: 1925-11-21
Abstract: 267,581. Hetherington & Sons, Ltd., J., and Haigh, E. V. Nov. 21, 1925. Openers etc.; feeding openers &c.-Cotton is stripped from the surface of the rotating perforated cage, upon which it has been deposited in a textile machine, and thrown downwards in a scattered condition by an endless band, which forms a nip with the cage; the speed of the band being greater than the peripheral speed of the cage. The cage 7 in a delivery box in a pneumatic cotton mixing machine is provided with a screen 8. A band 18 passing over two rollers 14, 17 forms a nip x with the cage. Airtight closing-members 9, 19 are provided, and the cotton falls through the door 5 in the box 4. The cage and the band are driven by a single endless cord passing over pulleys on the spindles 15, 13 and over suitable guide pulleys. There is a stepped down ratio between the roller shaft and the cage shaft to give the increased linear speed to the band.
Patent GB-838019-A (GB)
Title: Treated glass fibres and compositions for use in the same
IPC: C03C25/26
Filed: 1956-09-26
Abstract: Mineral fibres are coated with an aqueous composition comprising a resinous polymer having free hydroxy groups, a quaternary ammonium compound and a Werner complex compound having a carboxylic acyl group containing more than 8 carbon atoms attached to a trivalent chromium atom, and are heated to harden the composition.  The materials treated may be filaments, strands, yarns or fabrics of continuous or staple fibres made from glass, rock wool or mineral slag.  Fabrics may be weave-set by heating to 1050 DEG  to 1350 DEG  F. before the treatment.  The hydroxy resinous compound may be polyvinyl alcohol, a polyethylene or polypropylene glycol or a polyester resin having free hydroxy groups.  The quaternary ammonium compound may be obtained by reacting an alkyl halide with triethanolamine or by reacting one of the amino groups of ethylene diamine with a fatty acid while the other is reacted with an alkyl halide, or may be derived from an amino-substituted coconut oil fatty acid or may be lauryl trimethyl ammonium chloride.  Werner compounds specified are stearat chromic chloride, palmitic chromic chloride and oleyl chromic chloride.  The composition may also include diethanolamine, triethanolamine or ethylene, propylene or butylene glycol, pigments or dyestuffs, and hydrochloric or acetic acid. The coated materials may be treated with a tinctorial agent, dried and heated at 250-400 DEG  F.  In the example, a glass fabric which has been weave-set at 1200 DEG  F. is treated with an aqueous composition containing polyvinyl alcohol, a quaternary ammonium compound derived from diaminesubstituted coconut oil fatty acids and stearato chromic chloride, dried, heated at 360 DEG  F., and after-treated with a quaternary ammonium compound and a wetting-agent.  Specification 813,602 is referred to.
Patent GB-488817-A (GB)
Title: Improvements in or relating to electron discharge device oscillators
IPC: H01J25/04
Filed: 1937-10-28
Abstract: 488,817. Valve generating circuits; thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 28, 1937, No. 29531. Convention date, Dec. 24, 1936. [Classes 39 (i) and 40 (v)] To produce oscillations energy is extracted from a stream of electrons passing through a number of hollow electrodes, the alternate electrodes being connected to opposite sides of a resonant circuit. To allow for the slowing of the electrons, the successive electrodes are made of shorter lengths. The discharge tube 1 comprises a cathode 5, a grid 7, an accelerating electrode 9, hollow electrodes 11, 13, 15, 17, 19 and a target 21. The stream of electrons from the cathode may be focused by a magnet or the like 23. The electrodes 11, 15 and 19 are connected to one side of the resonant circuit 25, and the other electrodes are connected to the opposite side of the resonant circuit. The apparatus is arranged so that electrode 11 is negative as the electron stream reaches it so that the stream is slowed and gives energy to the circuit 25. When the slowed stream reaches electrode 13 the current in the circuit 25 reverses so that 13 is now negative and subtracts more energy from the stream. Similarly electrodes 15, 17 and 19 are negative as the stream reaches them and each further slows the electrons and gives energy to the oscillating circuit. A tuned circuit 41 coupled to circuit 25 may be connected to grid 7 to advance and retard the electrons so that their entry into the field of electrode 11 is properly phased. Specification 478,095 is referred to.
Patent GB-741073-A (GB)
Title: Improvements relating to weather excluders for doors and windows
Inventor: FERNBERG ERIC BIRGER
IPC: B60J10/08
Filed: 1953-10-26
Abstract: 741,073. Draught excluders. F. T. PRODUCTS, Ltd. Oct. 21, 1954 [Oct. 26, 1953] No. 29568/53. Class 20(3). A draught excluder assembly, such as for the door openings in auto. mobiles comprises a U-section finishing strip 12 having several clip, 16 pushed therein, each clip 16 being of U-shape with inwardly directed prongs 17, 18, and a rubber sealing strip 11 having a portion 14 in. serted into the clips 16 and strip 12, so that it is held by the prongs 17. 18, the whole then being pushed over the flange 10, so that the assembly is retained either by the frictional grip on the flange 10 or by the prongs 17, 18 penetrating the rubber strip 11 and engaging the flange. As shown the strip 11 consists of a tubular portion 13 and a flat flexible portion 14, the latter being folded to lie within the clips 16. In a modification the portion 14 is preformed to U-shape. The finishing strip 12 may consist of stiff but flexible fabric or of fabric having a flexible metal reinforcement incorporated therein. A limb of the strip 12 is inturned at 15 to overlie the end of a limb of each clip 16.
Patent GB-469751-A (GB)
Title: Improvements in operating method of combustion engines
IPC: F02G3/00
Filed: 1935-10-25
Abstract: 469,751. Two-stroke-cycle engines. FRANKL, M. Oct. 25, 1935, Nos. 29569 and 29570. Void. Convention dates, Oct. 25, 1934 and Oct. 9, 1935. [Class 7 (ii)] Air compressed in cylinders IV, V, VI is forced into a reservoir i through valves d and part of the air is returned for combustion in the cylinders IV, V, VI, and the remainder delivered through valves g for combustion in cylinders I, II, III to drive a crank-shaft separate from the crank-shaft of the cylinders IV, V, VI. The quantity of air admitted to the cylinders IV, V, VI through valves c, by a receiver w charged by a fan f, is regulated by the pressure in the reservoir i, which controls the cam-shaft operating the valves c and a throttle valve in the inlet to the fan f. Part of the charge in the cylinders IV, V, VI may be forced into combustion chambers separated from the cylinders by narrow passages, and the valves d may be kept open to enable combustion to take place at constant pressure. In an engine using gas, the gas used in all the cylinders I .... VI is admitted through bores provided in the seats of the valves d. In modified constructions in which the cylinders I, II, III are dispensed with, (1) the surplus of air in the cylinders IV, V, VI is forced into a reservoir used for starting purposes, and (2) the surplus of air is discharged directly from the cylinders IV, V, VI and used for operating compressed air tools.
Patent GB-674258-A (GB)
Title: Process for the froth flotation of sulphide and non-sulphide ores and non-metallic minerals
IPC: B03D1/008
Filed: 1949-11-18
Abstract: Terpene carbinols for use in froth flotation are formed by reacting carbon monoxide and hydrogen with a terpene, in the presence of a hydrogenation cobalt catalyst at 40-200 DEG  C. under a pressure of 20-300 atmospheres, the aldehydes first formed being hydrogenated to form the carbinols.  Carbinols of pinene, canphene, limonene, dipentene, fenchene and menthene are referred to, as is the production of mixed carbinols by the conversion of sulphated turpentine oil.  U.S.A. Specification 2,327,066 is referred to.ALSO:Terpine carbides are used as frothing agents in the treatment by froth flotation of sulphide and non-sulphide ores and nonmetallic minerals.  Lead-zinc ores may be floated using sodium cyanide, zinc sulphate, potassium ethyl xanthate and camphanyl or menthanyl carbinol; and fluorspar using oleic acid, water glass, and camphanyl or menthanyl carbinol.  Carbinols of pinene, limonene, fenchene and dipentene are also referred to and the carbinols may be used in admixture.  U.S.A. Specification 2,327,066 is referred to.
Patent GB-1306826-A (GB)
Title: Vehicle transmission system
IPC: F16H3/02
Filed: 1970-06-18
Abstract: 1306826 Change-speed gear GENERAL MOTORS CORP 18 June 1970 [2 July 1969] 29606/70 Heading F2D In a motor-vehicle hydrokinetic torqueconverter-driven two-speed and reverse Ravigneaux type intermeshed planet gear 11 having a sun 31, fast with the turbine shaft 30, meshing long planets 32 intermeshed with short planets 34 which latter planets 34 jointly mesh a sun 43, freely journalled on the turbine shaft 30, and a ring 60, the planet carrier 39 being fast with an output shaft 41, the sun 43 being braked by a band brake 49 for forward low and clutched to the turbine shaft 30 by a multi-disc clutch 50 for direct lock-up forward drive, the ring 60 being braked by a multi-disc brake 61 for reverse, the brakes and clutch are automatically (or manually) controlled and engaged hydraulically by liquid pressure supplied by a single hydraulic pump 14 driven from both the driving and driven elements of the torque-converter, i.e. the impeller and turbine shafts 94, 30 through separate one-way clutches 90, 100 via gears 97, 102 meshing a gear cluster 99 (i.e. integral gears 98, 105) keyed fast on the pump gear shaft 88, so that when the vehicle is in motion but the driving impeller shaft 94 from the engine is not driving the pump 14, i.e. when the vehicle engine is not powering the transmission and the one-way clutch 90 overruns, and with the planetary gear engaged, the output shaft 41 drives the pump 14 via the planetary gear 11 turbine shaft 30 and the other one-way clutch 100. Thus the hydraulic output from the pump is always available, either when the engine drives the pump or on overrun when the vehicle drives the pump, for additional hydraulically operated auxiliary equipment such as power steering, a brake booster, an antilock brake system, windshield wiper motors, power window motors, power seat adjusters and a suspension levelling system. The one-way clutches 90, 100 may be either of the roller (as shown) or sprag type, the pump 14 being normally driven through the one-way clutch 90 since the vehicle's engine is normally powering the transmission and the converter output shaft 30 in this condition will always be rotating at a speed less than the transmission input, i.e. providing sufficient lost motion, such that since the transmission input is overrunning the converter output shaft 30, the other one-way clutch 100 overruns.
Patent GB-858390-A (GB)
Title: Improvements in or relating to pulse generating devices
Inventor: HARTLEY HENRY FREDERICK
IPC: G06K7/016
Filed: 1958-09-16
Abstract: 858,390. Sensing record cards. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Aug. 26, 1959 [Sept. 16, 1958], No. 29665/58. Class 106 (1). Timing pulses for interpreting the differentially timed pulses derived from the sensing of a record card are produced from a series of switches, one for each column position, which are opened in succession by the leading edge of the card, each switch being connected in a resistance network which produces a pulse when the switch opens, a connection to the adjacent network causing the pulse to end when the succeeding switch opens. As shown in Figs. 1 and 2 the card is passed by rollers through a photo-electric sensing station 6, 7 and between plates 10, 11 in which are mounted the switches, arranged in two groups in staggered positions. Each switch consists of a rotatable contact member 15, Fig. 4, urged by a spring 16 against a fixed contact 13. The contacts 15 and 13 are separated by the leading edge of the moving card. The construction and arrangement of the switches forms the invention of Specification 858,391. As shown in Fig. 6, each pair of contacts 15, 13 is connected between resistors 22, 24 and a resistor 23 connects the contact 15 to the contact 13 of the adjacent switch. A diode 21 is connected between point 27 and earth and the outputs 01-012 are taken from these points 27. Line 19 is positive and line 20 negative, the arrangement being such that with the switch closed the point 27 would be negative if it were not tied to earth potential by the diode 21. When the switch opens the connection to the negative line is made only through the resistors 23 and 24 of the adjacent network. The point 27 accordingly goes positive until the adjacent switch 15, 13 is opened by the advance of the card. When this happens the point 25 goes more negative owing to its disconnection from the positive side and the point 27 is again returned to zero volts. The successive pulses which are shown in Fig. 7, are used to gate the signals derived from the photo-cells 6, there being a gate for each index position in each column of the card. The outputs from the gates are on groups of lines, one for each column, representing the digits sensed. The card could alternatively be sensed column by column instead of row-by-row, the number of switches being increased to one more than the number of columns. The extra switch (S13 in Fig. 6) serves to terminate the last effective pulse (012, Fig. 7). In another form the resistance networks are alternately connected to the positive and negative lines and the diodes are alternately reversed. The timing pulses produced from this arrangement alternate in polarity but are otherwise similar.
Patent GB-488189-A (GB)
Title: Apparatus for receiving balls, rolls or discs of sliver ejected from a sliver-balling or winding machine
IPC: D01G15/62
Filed: 1936-11-02
Abstract: 488,189. Sliver -balling apparatus. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., and BEE, J. R. Nov. 2, 1936, No. 29699. [Class 120 (i)] The completed balls or rolls are discharged from a sliver-balling machine into a receiver 2, Fig. 1, comprising longitudinal supporting bars x, xl, Fig. 2, each wound ball being displaced axially from the roll-receiving station by a plate 13 operated by cam-actuated lever devices, the plate 13 then being returned in readiness for the next completed ball. When completed the wound ball or roll 5 moves down a guiding plate 7 to the receiver 2 and is then moved forward by the plate 13 carried by a sliding plate 11 and actuated by a horizontal lever 8 pivoted at 9 on a bracket 10. The lever 8 is oscillated by a cam 16 suitably driven from the machine through a bell-crank lever 15 and a rod 14 connected to an arm 8b projecting laterally from the lever 8. In a modification the rolls are received on a platform which is moved forward together with the deposited rolls. Specification, 444,062 is referred to.
Patent GB-878212-A (GB)
Title: Improvements in or relating to mechanical resonators or energy exchangers
Filed: 1956-09-28
Abstract: 878,212. Torsion rods. FREEBORN, J. E., CHAPMAN, R. H., and MARR, W. F. Sept. 27, 1957 [Sept. 28, 1956], No. 29707/56. Class 108(3). In an energy exchanger or resonator a torsion bar 24, Fig. 1, is attached by its ends to sleeves 20, 23. The sleeve 23 has an eccentric portion 22 which makes line contact with the inside of the sleeve 20. Alternatively the sleeve 20 may be eccentrically bored or both sleeves may have eccentric portions. Flanges 25, 26 serve for attachment to other machine parts. In operation torsional movement of the torsion bar through an angle e, Fig. 3b, causes rolling contact to take place between sleeves 20, 22 and the point of contact moves through an angle f in the opposite direction. Fig. 4 shows an embodiment in which a torsion bar 27 has an eccentric portion 28 which makes rolling contact with a sleeve 29. Alternatively the bar 27 may be disposed eccentrically with respect to the sleeve 29 to make rolling contact throughout its entire length. These resonators are preferably employed in pairs such that the deflection forces produced in each will be in opposition, thus holding the rolling surfaces in permanent contact. Fig. 6 shows an arrangement in which contact is made at B. In an alternative construction the points of contact are each displaced through 180 degrees. Fig. 8 shows an arrangement using resonators of the type illustrated in Fig. 4. Fig. 10 illustrates a further possible assembly of resonators. Resonators 40, 42 are of the type shown in Fig. 1, and resonators 41 are as shown in Fig. 4.