baber/WOPTO huggingface dataset:
Patent GB-579721-A (GB)
Title: Method of and apparatus for the softening of treated textile slivers
IPC: D01G29/00
Filed: 1939-07-10
Abstract: 579,721. Softening and opening slivers. LINEN INDUSTRY RESEARCH ASSOCIATION, and MATTHEW, J. A. July 10, 1939, No. 20011. [Class 120 (i)] Slivers of textile fibre which have been treated with liquids and dried, are softened and the individual fibres freed from intimate contact and adhesion with one another by repeatedly rolling the sliver under pressure between a number of plain bars or rollers of relatively small diameter carried by an oscillating drum and a resilient backing, such as rubber, the repeated rolling being effected by the oscillation of the drum and the pressure by the resilient .backing which partly encircles the drum and rollers and is moved continuously in one direction. As shown, the resilient backing is formed by an endless belt 17 of leather faced with rubber and the smooth bars or rollers are arranged equidistantly around a drum 1 and are freely rotatable between end rings 8 thereon. The drum is oscillated from a driven shaft 5 by cranks 3, 4 and the belt, carrying the sliver or a number of slivers y, passes over rollers 9, 10 arranged at the sides of the drum and a roller 11 adjustably mounted in guides 13, adjustment of screws 14 varies the pressure between the belt and the rotatable bars 7 ; rollers 15 carried in slotted guide 16 rest on the belt on the rollers 9, 10 or are pressed down thereon and the belt may be additionally pressed against the bars 7 by bars 18 freely mounted coaxially with the drum in a frame 19 and pressed against the belt by springs 23.
Patent GB-478364-A (GB)
Title: Improvements in yarn winding machines
IPC: B65H54/10
Filed: 1936-07-20
Abstract: 478,364. Winding yarns. MONCRIEFF, R. W., and HILL, F. B. Julv 20, 1936, No. 20038. [Class 120 (ii)] A yarn-winding apparatus comprises a package support 1 with means for rotating the package on the support, a rotatable yarn guide 9 presenting an endless slot or groove 10 through which the yarn is led to the package, means for rotating the guide 9 so that the yarn is traversed to and fro along a part of the length of the package, a non-rotating guide 12 adapted to conduct the yarn to the guide 9, and means for traversing the guides 9, 12 slowly together to and fro from end to end of the package. As shown, the package support or bobbin 1 is driven by a friction wheel 3 and the guide 9 is mounted on a shaft 11 splined to a gear 16 driven from the shaft 18 and connected by a block 22 at its end to one arm 19 of a bell-crank lever 19. 20 pivoted at 21 with a bowl 27 at the end of the other arm 20 engaging a cam 25 on a shaft 26. The block 22 is pivoted to the lever arm 19 and the rod 13 carrying the guide 12 is secured to the block so that as the shafts 18. 26 rotate, the yarn is laid on a part of the bobbin 1 by the guide 9 which, with the guide 12, is slowly traversed from one end of the bobbin to the other by the cam 25. The guide 9 is preferably disposed outside the flanges of the bobbin 1 and traversed slightly beyond the flange so as to direct the yarn closely thereto. A number of bobbins may be arranged in several. rows with common mechanism for actuating the traversing means for the bobbins in each row.
Patent GB-933606-A (GB)
Title: Process for oxidizing a normally gaseous hydrocarbon
IPC: C07C47/06
Filed: 1960-06-08
Abstract: A normally gaseous saturated hydrocarbon is oxidised with oxygen to give a product comprising formaldehyde, acetaldehyde and unreacted hydrocarbon, the unreacted hydrocarbon is separated from the oxygenated product, preheated to a temperature of 315-425 DEG C. at a pressure of 0-14 kgs/sq. cm. gauge, and mixed with fresh gaseous hydrocarbon and oxygen and the resulting mixture is subjected to oxidation at a temperature of 345-455 DEG C. and a pressure of 0-14 kgs/sq. cm. gauge for 0,1-2 secs.  Suitable saturated hydrocarbons for use as starting materials are, for example, methane, ethane, propane, butane or mixtures thereof. Preferably 2-12% by volume of fresh hydrocarbon and 1-6% by volume of fresh oxygen is added to the preheated hydrocarbon.  In an example a mixture of methane and ethane is oxidised according to the process.
Patent GB-404354-A (GB)
Title: A new or improved method of and means for making cigarettes
IPC: A24C5/47
Filed: 1932-07-15
Abstract: 404,354. Cigarette-making machines ; cigarettes. MOLINS, W. E., 2, Evelyn Street, Deptford, London. July 15, 1932, No. 20051. [Class 130.] A method of manufacturing plugged-end cigarettes consists in feeding double length plugs in succession to a point between two parallel rows of cigarettes having hollow ends (or loosely filled cigarettes) and assembling the axially aligned plug and two cigarettes, for instance by axial pressure, and then cutting the plug to secure two plugged cigarettes. The cigarettes may be cut from a continuous rod having periodical gaps, as described in Specifications 372,088 and 373,745. The length of plug material employed may consist of crepe or crinkled paper, shredded wood, cottonwool or similar absorbent material and may be made in a machine similar to a continuous-rod cigarette machine. In the machine shown, pieces of plug material 1 of a length suitable for six plugs are fed from a hopper 2, having a vibrating bottom plate 3 and a knurled co-operating roller 5, to a fluted drum 4. The hopper is described in Specification 209,487, [Class 94 (i), Packing &c.]. Rotary knives 8, sharpened by grinding discs 9 and co-operating with circumferential slits in the drum 4, cut each length of plug material into three doublelength plugs, which are delivered to the flutes of a drum 11 running at a higher peripheral speed than the drum 4. A shield 10 for the drum 4 is stopped at the lower end, as shown in Fig. 7, so that the three double-length plugs fall into three consecutive flutes on the drum 11. By means of a shroud 12 on the drum 11, connected by a pipe 13 to a pump, compressed air blows all the plugs along the flutes and against one side of the shroud, bringing them all into line with a subsequent fluted rotary disc 20, Figs. 1 and 3. While the plugs are in the flutes of the disc 20, the ends of the plugs are coned or pressed to star or other shape by dies 26 carried by pressers 24 sliding on rods 23 and actuated by cam tracks 25a on fixed drums 27. At the point 27a, Fig. 1, the plugs are transferred by a forked plate 29 and a guide 18 to a fluted rotary disc 28 between a pair of fluted drums (not shown) to which cigarettes are deflected from the endless tape 45 of a cigarette machine over a bridge 50 by a rotating vaned deflector 48. Gum is applied to the plugs by a roller 30 working in a slot of a gum foot 31 connected to a gum pot 32, and a pair of cigarettes is pressed endwise upon a plug by a pair of cam-actuated pressers similar to the pressers 24, Fig. 3. A rotating knife 42, furnished with grinding discs 43, cuts through the middle of the plug, and the two finished cigarettes are delivered upon a belt 49. Instead of gumming the plugs, they may be compressed and allowed to expand, for instance by slitting them as shown in Fig. 14 or Fig. 16. When the plugs are made in a continuous-rod machine, they may have their wrappers slit immediately before insertion in the cigarettes.
Patent GB-257594-A (GB)
Title: Improvements in or relating to electromagnetic circuit interrupters or switches
IPC: H01H43/30
Filed: 1926-08-16
Abstract: 257,594. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Hodgkins, C. H.). Aug. 25, 1925, [Convention date]. Electricallytripped switches.- An electromagnetic switch suitable for controlling electric motors has auxiliary contacts which are allowed to operate by the bending of a bimetallic member 15 a predetermined time after the winding 23 has been energized. Energization of the winding 23 by an alternating current first causes the attraction of an armature 2 pivoted at 3 to a. switch arm 4 pivoted at 5, causing the main contacts 6, 7 to close. The other end 11 of the arm 4 also moves but the contact-pin 9 resiliently carried by it is prevented from moving into bridging engagement with two pins 14 till the bimetallic member 15 has bent to the right under the heating effect of current produced inductively in a winding 22 on the core 1 of the electromagnet. The element 15 is of the shape shown in Fig. 2, having a large radiating surface to ensure quick cooling, and narrow portions 20, 21 which become hot quickly and so ensure quick bending. In a modification, the movement of the contactpin 9 may also break the circuit of the winding 22, so that the element 15 cools at once and latches the contact-pin 9 again as soon as the winding 23 is de-energized and the arm 4 moves back.
Patent GB-439307-A (GB)
Title: Improvements in and relating to low frequency amplifying systems
IPC: H03F3/28
Filed: 1934-07-10
Abstract: 439,307. Distributing music. STANDARD RADIO RELAY SERVICES, Ltd., Bush House, Aldwych, and ADORJAN, P., 13, Gledhow Gardens, Old Brompton Road, both in London. July 10, 1934, No. 20204. Drawings to Specification. [Class 40 (iv)] [See also Group XL] The input to a push-pull audio-frequency amplifier is fed through two series resistances, one in each lead, and two series condensers. Between the resistances and the condensers, a variable resistance is shunted across the leads, the adjustment of which enables a series of amplifiers, when fed from a single source, to share the load equally or in the most suitable proportion. The series resistances impose a lower limit on the input impedance of any of the amplifiers.
Patent GB-878956-A (GB)
Title: Improvements in or relating to synchronizing arrangements for sound cinematography
IPC: G03B31/00
Filed: 1959-06-12
Abstract: 878,956. Automatic speed control systems. TRAINQUART, R. June 12, 1959, No. 20276/59. Class 38 (4). A gear-wheel 33, forming part of a differential gear, is driven in accordance with the speed of a magnetic tape for sound recording, whilst the speed of a gear-wheel 36 depends upon the linear rate of advance of a cinematographic film. When the ratio between the speeds deviates from a predetermined value, a planet cage 39 is displaced and a slider 40 is adjusted in relation to a resistor 42 in circuit with the electric motor driving the film in such a manner that synchronism is restored. The gear-wheel 33 is coupled to a pulley 27 engaging the magnetic tape, the gear-wheel 36 being secured to a disc 34 having magnetic core members 35 which cooperate with solenoids 43. A step-by-step rotation is imparted to the gear-wheel 36 by means of the solenoids which are energized in sequence at a frequency which depends upon the rate of feed of the film.
Patent GB-320142-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1928-07-12
Abstract: 320,142. Royce, F. H. July 12, 1928. Spray carburettors; vaporizers, external. - A jacket c around the induction pipe b<1> or the carburettor b<2> or both, is supplied with exhaust gases through a pipe h from an exhaust manifold a<1> connected by a pipe a<2> with a silencer a<3>, a<4>. The gases are discharged from the jacket through a pipe g either to the atmosphere through an auxiliary silencer g<2>, g<3>, or to a point of the main exhaust system where the pressure is lower than that in the pipe g. A valve for controlling the flow through the jacket is situated at some point beyond that at which the pipe h enters the jacket. As shown, the valve is located at e, is of the spring-loaded, mushroom type, and is actuated through linkage f<1>, f<3>, f<4> from the carburettor throttle valve f in such a manner that as the throttle is opened the valve passage is reduced.
Patent GB-184363-A (GB)
Title: Improvements in or relating to artificial baits for fishing
IPC: A01K85/12
Filed: 1921-07-29
Abstract: 184,363. Baker &. Sons, Ltd., F., and Baker, F. July 29, 1921. Spinning-tackle.-An artificial bait is provided with hinged spinning vanes adapted to fold in a forward direction when the bait is seized by a fish but prevented by stops from folding rearwards past their spinning position. In one form, the bait comprises a hollow open-ended flat-sided metal body 1 formed in longitudinal halves secured together, a line 2, provided with hooks 3, passing through it. The vanes 5 are formed with a sleeve 6, adapted to fit within a vertical slot in the side of the body, a wire 7 passing through the sleeve and through holes in the body, the ends of the wire being bent to fit within recesses 8 in the body. The ends of the wire may be connected together, or each end of one wire may be connected to the respective end of the other wire. A flat edge 9 on the vane acts as a stop, or a stop may be provided on the body. In a second form, the vanes may be hinged to the body by means of a pin passing through eyes on the vane and body. The metal body 1 may be formed in a single piece.
Patent GB-1136725-A (GB)
Title: Improvements in or relating to fluid containers
Inventor: ABIGAIL WALTER LEONARD
IPC: A62C13/00
Filed: 1965-05-14
Abstract: 1,136,725. Frangible diaphragm closures. GRAVINER (COLNBROOK) Ltd. 6 May, 1966 [14 May, 1965], No. 20375/65. Heading A5A. In a fire extinguisher of the dry powder and pressurised gas type the thin copper diaphragm 12 sealing discharge outlet 14 is maintained in contact with head 13a of operating plunger 13 by the internal pressure and is punctured by a sharp blow at the base of 13. Plunger 13, formed with vertical bore 13b communicating with nozzle 14 and terminating with horizontal bores 13c, carries resilient circlip 17 to resist depression of 13 under the internal pressure and, on use, to retain 13 with bores 13c inside end cap 16. Escape of gas before use is detected by upward movement of 13 when thumb pressure is applied thereto.
Patent GB-675210-A (GB)
Title: Improvements in or relating to adjustable electric attenuators
Inventor: FELDHUSEN IGOR VLADIMIR
IPC: H03H7/24
Filed: 1949-08-05
Abstract: 675,210. Impedance networks. STANDARD TELEPHONES & CABLES, Ltd. July 28, 1950 [Aug. 5, 1949], No. 20407/49. Addition to 644,066. Class 40 (viii). In an attenuator as described in the parent Specification, namely a structure comprising an attenuating network enclosed in a conducting screen 1, a bus-bar conductor 15 connecting a terminal 3 to the screen, and a switch which can disconnect a portion of the bus-bar and connect the network between terminal 3 and a further terminal 2 over the disconnected part of the bus-bar, the switch also connects the free end of the remaining portion of the bus-bar to the screen 1. An attenuator as described in the parent Specification may also utilize T- networks which are each bridged by resistances much larger than their series arms in order to obtain networks of the required values at minimum expense. In the arrangement shown a number of T-networks formed from carbon resistances 24 are arranged in recesses in the bottom of the screening box 1 and are connected in series when their associated switches are in their initial positon. Pressing down a particular switch breaks the bus-bar connection 1 at this point and connects all preceding networks through the remaining part of the busbar to terminal 3. The last two switches 7 and 18 also at the same time connected the end of the preceding part of the bus-bar to the screen.
Patent GB-949719-A (GB)
Title: Steroid-3-enolacylates and the preparation thereof
IPC: C07J5/00
Filed: 1961-06-06
Abstract: The invention comprises steroids of the general formula: <FORM:0949719/C2/1> wherein R1 represents H, CH3, F or Cl, Z represents H(H) or =CH2, and R3 represents an aliphatic acyl radical containing not more than 6 carbon atoms, and the preparation thereof by reacting a 3-keto -4, 6-diene steroid of the general formula: <FORM:0949719/C2/2> wherein R1, R2 and Z have the above significance, with the required enol acylating agent such as a mixture of the required carboxylic acid anhydride and acid chloride with or without the presence of an organic base, or a mixture of the required carboxylic acid anhydride and an organic base, or isopropenyl acetate. A free 17a -hydroxyl group in the reactant is concurrently esterified with the enol ocylation.  Therapeutic compositions having a progestational action on oral application contain as the active ingredient steroids of the first general formula above. They may take the form of pills, tablets, dragees, solutions or emulsions.
Patent GB-716005-A (GB)
Title: Improvements in supporting frames for mine galleries, tunnels and the like
IPC: E21D11/22
Filed: 1952-08-15
Abstract: 716,005. Tunnel and mine arch supports ; struts. LANGERBEIN, W. Aug. 15, 1952 [Aug. 16, 1951], No. 20534/52. Class 20 (2). [Also in Group XXV] A mine or tunnel arch support comprises arcuate tube sections a, Fig. 1, spaced apart and yieldingly connected together by pairs of arcuate part-tubular bridging members b clamped at their ends around the ends of adjacent tube sections. The ciamping members c may each comprise jaws c', Fig. 2, connected on one side by a hinge joint or a bolt g and at the other by a ring d engaging over ears on the jaws c<SP>1</SP>. In an alternative form instead of the bolt g, a wedge l, Fig. 4a, engages over shoulders k on the jaws c', and the wedge l may be in the form of a ring wedge. The arch supports are spaced apart and strutted by flat iron strips O<SP>111</SP>, Fig. 6, and have regularly spaced elongated slots s, the strips O<SP>111</SP> being inserted through the gaps between the half-tubes b and stressed by means of wedges r inverted in the slots s on one or both sides.
Patent GB-1267962-A (GB)
Title: Lift truck cooling systems
IPC: F01P7/16
Filed: 1969-04-22
Abstract: 1,267,962. Lift trucks; cooling radiators. HYSTER CO. 22 April, 1969 [8 May, 1968], No. 20585/69. Heading B7H. [Also in Divisions B8, F1 and F2] In a lift truck having forks 13 vertically movable on a mast 12 at the front of the truck, a counterweight 26 at the rear of the truck has formed therein an air duct 28 in which is positioned an hydraulically-driven cooling fan 20 for the cooling system of an engine 16. The fan 20 draws air through a radiator 18 located in a recess 34 at the front end of the duct 28 and expels the air rearwardly through a grille 24. A fan shroud 30 in the duct 28 has a seal 32 and closely surrounds the fan 20. The fan blades 21 are made of a plastics material and the fan is driven by a fixed-displacement hydrostatic fan motor 22 mounted on the grille 24. The fan motor 22 is supplied from an engine-driven pump 40 through an hydraulic circuit, Fig. 4, including a thermo-modulated pressure-relief valve 56 which controls the hydraulic pressure drop across the motor in such a way that the fan speed varies with engine temperature but independently of the engine speed and of the demand of further hydraulic apparatus supplied in series with the motor 22 and represented by variable flow resistance 46. Downstream of the resistance 46 the hydraulic fluid flows through a transmission valve 49, torque converter 50, an engine oil cooler 51, a thermal element 60 which is associated with the valve 56 and senses the engine temperature indirectly by sensing the temperature of the oil, and a transmission cooling and lubricating element 52. A high-pressure relief valve 68 connected in parallel with the valve 56 prevents excessive pressures. The thermomodulated pressure relief valve, Fig. 8, has a fluid inlet 76 and outlet 78 communication between which is controlled by a spring-loaded spool 88 positioned by the pressure differential across an orifice 94. A pilot flow through the orifice 94 is controlled by a pilot valve 100 variably loaded through a spring 102 and rod 106 by a thermal element 108 having an expansible wax portion 112 and constituting the thermal element 60 shown diagrammatically in Fig. 4. The spool 88 acts to maintain the pressure drop between the inlet 76 and outlet 78 and hence across the fan motor 22 at a constant value determined by the thermal element 108. A spring 110 interposed between the thermal element and the rod 106 allows the pilot valve 100 to open under excessive pressure to serve as the high-pressure relief valve 56 of Fig. 4. In another embodiment, Fig. 7 (not shown), the fan motor and a thermo-modulated pressure reducing valve are connected in series to a variabledisplacement pump which is regulated to deliver at a relatively constant output pressure regardless of engine speed. In a further embodiment, Fig. 6 (not shown), the fan motor is supplied in parallel with the lift, tilt and steering motors of the truck from a variable-displacement pump arranged to deliver at low pressure when there is flow only through the fan motor but at high pressure when there is flow through the other motors also.
Patent GB-1014954-A (GB)
Title: Improvements in or relating to traction arrangements on traction vehicles
Inventor: WEHSELY KARL
IPC: B60D1/46
Filed: 1963-05-23
Abstract: 1,014,954. Tractor/trailer hitches. INSTITUT FUR LANDMASCHINEN-UND FRAKTORENBAU. May 23, 1963, No. 20594/63. Heading B7T. A tractor/trailer hitch comprises a frame 2 which may be pivoted up and down beneath the tractor by power lift links 4, a draw-bar 6 which may be extended in Figs. 1, 2, a bracket 17 mounting pincer jaws 18, which jaws are operated by an over-centre spring to latch around a bridge 11, Fig. 1, and a coupling hook 16. In operating, the embodiment of Figs. 1, 2, the frame 2 is lowered by the lift links 4 and the tractor is reversed until the hook 16 is near to the trailer eye. The bar 6 is then extended by hydraulic units 7 until the hook is exactly beneath the eye, and the frame 2 raised to make the coupling. The tractor is then further reversed to push the bar 6 inwardly so that the forward end of the bar is supported in a socket 10. On raising the frame the latch 18 engages the bridge 11, and a projection 12 on a pivoted securing arm 14 enters a hole 15 in the arm 6 to lock the arm in its retracted position, a part 13 of the arm securing the trailer coupling eye in position. In the embodiment of Fig. 3 (not shown), the arm 14 is omitted and the bar 6 which must be retracted is accurately positioned beneath the trailer eye. When the frame 2 is raised, the coupling is made, the latch 18 is operated, and the bar 6 is retracted into the supporting socket 10 by pivoted links 20 attached to a bearing 19 sliding beneath the bracket 17.