baber/WOPTO huggingface dataset:
Patent GB-863888-A (GB)
Title: Improvements relating to air filters
Inventor: SEBESTYEN EMERIC JOHN
IPC: B01D46/04
Filed: 1959-01-19
Abstract: 863,888. Filtering gases. SIMON HANDLING ENGINEERS Ltd. Jan. 11, 1960 [Jan. 19, 1959], No. 1835/59. Class 8(2). A suction air filter of the textile sleeve type in which the sleeves are stretched between upper and lower horizontal frames which are given antiphased lateral reciprocatory movements of amplitude : length ratio about 1 : 85 to dislodge dust from the sleeves whilst the air flow through the sleeves is reversed. The sleeves 5 are attached to cup 6, suspended from hoops 7, adjustably locked in racks 8 by slotted rings 12, the racks 8 being attached to a shaking frame 9, suspended from the roof of the cylindrical housing 1. The lower ends of the sleeves 5 are attached to a frame 11, suspended by links 10a from the housing 1, and appended to the frame 11 is a flexible skirt 5 having a metal ring 16 attached to its bottom edge and likewise the ring 16 has a rubber ring 17 making contact with the conical hopper 2. Dust laden air enters the conical hopper through the pipe 3 by way of the reverse flow check valve 37, expands the heavy particles thereby being deposited where they can be discharged, the air and dust residue passing up through the sleeves 5, wherein the dust is deposited, the filtered air discharging through the outlet 4. The air seal at 17 in the conical hopper is assisted by a pneumatically operated piston 50 attached to the ring 16, manually operated during the reverse flow sleeve shaking sequence by the cock 38, to raise the ring 16 and release the dust trapped between the skirt 15 and the housing by the operation of the pistons 13 by compressed air line 31, the outlet 4 being simultaneously closed by the valve 29, which opens the aperture 30 allowing air to be sucked into the housing 1 by the partial vacuum therein, thus aiding dislodgment of dust on the filter sleeves 5. The cams 21 control the sequence of operation, the flow during shaking being switched to a parallel filter unit, likewise operated and controlled.
Patent GB-1215411-A (GB)
Title: Yarn treating apparatus
IPC: D06B3/04
Filed: 1969-01-13
Abstract: 1,215,411. Lubricating yarns. LBESONA CORP. 13 Jan., 1969 [16 Feb., 1968], No. 1859/69. Heading D1L. In the treattnent of yam with lubricant by passage of the yarn over a roll 40 which is partially immersed in a liquid supply trough 84, the roll is rotated by interaction of a sprocket 74 on the roll and a driving chain 66 on a fixed frame 12 and the roll and trough are mounted, for withdrawal from the chain (for the purpose of servicing) on a carriage 30 carried by channels 28 running on rollers 26 attached to the frame. The roll and trough may be withdrawn past the position shown after depressing a spring-loaded lever stop 134 and disconnecting pipes 120, and 116. In the operative position (Fig. 2, not shown), carriage 30 is attached to the frame by means of withdrawable bolts 36. The height of liquid in the trough may be varied by tipping the trough about a pivot pin 112.
Patent GB-415700-A (GB)
Title: Improvements in and relating to the vulcanization of rubber
IPC: C08K5/00
Filed: 1933-01-20
Abstract: The vulcanization of rubber and the like is accelerated by the addition to the mix of a dithiazyl mono-sulphide and an organic base. The preferred type of sulphide is a dibenzenoid thiazyl monosulphide, such as 6-mono-nitrodibenzothiazole mono-sulphide, 6-61 dinitro-5-chlordibenzothiazole monosulphide, or 6-nitro-51-chlor dibenzothiazole monosulphide.  The organic base may be a substituted guanidine, an alkyl or an aryl amine, a Schiff's base, or an aldehyde derivative of a Schiff's base.  Reference has been directed by the Comptroller to Specification 353,580, [Group IV].
Patent GB-574535-A (GB)
Title: An improved lubricant suitable for impregnating felt or other like lubricating pads
Filed: 1944-02-03
Abstract: 574,535. Lubricants. ROTAX, Ltd., and LEVY, J. Feb. 3, 1944. No. 1994. [Class 91] A lubricant for impregnating felt or like lubricating pads consists of the following ingredients in about the proportions by weight specified:-40 parts of fat or fatty oil, 20 parts of castor oil or mineral lubricating oil, 10 parts of wax, 25 parts of ethyl cellulose and 5 parts of emulsifier. The lubricant is particularly useful for impregnating the pads used in contact with magneto contact breaker cams and other small high speed mechanisms where it is important to avoid flinging from the lubricated surface of surplus lubricant which might have undesired effects on adjacent parts. Fats specified are tallow, stearin and hydrogenated fatty oils while waxes specified are white or yellow beeswax, montan, spermaceti, Japan or carnauba wax. The emulsifier may consist of 2 parts of stearic acid and 3 parts of magnesium stearate, or other emulsifiers such as sulphonated castor oil, the hydroxy triethylamines, or metallic or alkaline soaps may be employed. Details are given of the preparation of a normally solid composition containing tallow, castor oil, white beeswax, ethyl cellulose, stearic acid and magnesium stearate, and the impregnation of pads with this composition.
Patent GB-1031691-A (GB)
Title: Process for the dimerization of olefins
IPC: C07C2/30
Filed: 1964-01-16
Abstract: Mono-olefins, e.g. C4-C6 mono-olefins, other than a -mono-olefins, are dimerized to dimers of the corresponding a -olefin in the presence of an aluminium alkyl compound as catalyst and in the presence of a natural or artificial aluminium silicate, aluminium oxide or a natural or artificial silicon dioxide as cocatalyst. Mono-, di- or tri-alkyl aluminium compounds containing C1-C8 alkyl groups may be used, possibly in admixture.  The weight ratio cocatalyst:catalyst is preferably 0.01 to 0.2 and the molar ratio aluminium alkyl compound:mono-olefin is preferably 0.01 to 0.5. Specified cocatalysts are aluminium silicates, aluminium hydrosilicates, decolouring clays, montmorillonite, bentonites, zeolites, bauxite, kieselguhr, silica gel and activated aluminium oxide. The cocatalyst may be used in suspension in the aluminium alkyl compound or in a fixed catalyst bed.  The examples describe dimerization of butene-2 at pressures of 50 to 300 atmospheres and temperatures of 150 DEG  to 250 DEG  C. to yield 2-ethylhexene-1.
Patent GB-971179-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: GALVIN JOHN LESLIE
IPC: H04Q3/00
Filed: 1963-01-17
Abstract: 971,179. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Jan. 17, 1963, No. 2112/63. Addition to 971,178. Drawings to Specification. Heading H4K. The system described in the parent Specification relates to the control of one or more routing selectors from a register-sender by the transmission to a common control circuit of code signals over a pair of wires. The present Specification is concerned with the control of a second routing selector which is located at a remote exchange reached over a 4-wire trunk with an additional pair of wires for impulsing and supervision. A common control circuit associated with the outgoing end of the trunk receives the code signals consisting of positive or negative potential on a pair of wires and repeats them in code form over a forward-loop circuit on either the go or return channel of the 4-wire trunk. Subsequent digits are repeated as ordinary impulses over the additional pair of wires mentioned above. Specification 971,177 also is referred to.
Patent GB-577218-A (GB)
Title: Improvements in or relating to a gear testing machine
IPC: G01B5/20
Filed: 1944-02-07
Abstract: 577,218. Gauging toothed gearing. KODAK, Ltd. Feb. 7, 1944, No. 2252. Convention date, March 4, 1943. [Class 106 (ii)] Apparatus for checking toothed gears comprises a base carrying a slideway in which a worm section rack is mounted and a work holder for rotatably supporting a gear-wheel to be tested with its teeth meshing with the rack, the work holder being mounted on an angularly movable post carried by a slide movably mounted on the base. The gear-wheel W to be tested is mounted on a spindle 33 carried by a plunger 40 mounted in a head 25 and counterweighted by a spring 63. The head is mounted on a post 19 on which it may be moved vertically by rack-and-pinion gearing 26, 27. The post 19 is rotatably mounted in a slide 18 on the base 10. A master bar T with worm section teeth as described in Specification 577,217 is mounted for longitudinal movement in a groove 2 in the base while mating with the gear-wheel. An indicator 52 with a plunger 51 contacting an anvil 49 carried by the plunger indicates imperfections in the teeth of the wheel when it is rotated by movement of the master bar. The axis of the spindle 33 is set for height by placing gauge blocks between it and a test pad on the master bar. Alternatively, setting is achieved by means of a micrometer spindle carried by the head 25. The head is set angularly according to the lead on the wheel teeth by using a micrometer to measure the distance in plan between the central lines of pins 71, 72. This distance is the chord subtending the setting angle in a circle of the known radius D. Flat faces are provided on the pins to enable gauge blocks to be used instead of a micrometer. A coverplate 80 threaded over the teeth of the master bar protects from dirt the groove in which the bar slides.
Patent GB-267267-A (GB)
Title: Improved apparatus for indicating liquid levels
IPC: G01F23/16
Filed: 1926-01-26
Abstract: 267,267. Willmann, P. Jan. 26, 1926. Indicators actuated by pressure of head of liquid. -In liquid-level gauges of the kind comprising a pump 1 to deliver air to the bottom of a tank 7 and to a manometer 5, a valve in the pump is opened by mechanical means towards the end of the compression stroke and prior to the start of the suction stroke. The pump cylinder 1 is provided at one end with an air valve 9 normally closed by a spring 12, and opened during descent of the piston 40 by a projection 10 of the rod 41. The valve is then locked in the open position by a spring pawl 14, which engages a disc 11 carried by the valve, and is released by the pull of a chain 15 when the piston is raised. A spring 16 is provided to force the plunger downwards after it has been raised by a handle 17. An intermediate receptacle may be arranged above the tank to prevent liquid from reaching the pump cylinder in case the valve fails to open. In a modification, the valve is closed during the descent of the piston by a yielding connection therewith, and is opened by a spring before the start of the suction stroke. In another modification, the valve is carried by a pivoted lever which has a sliding connection with the piston rod.
Patent GB-1447141-A (GB)
Title: Coupling for a pipe or tube
IPC: F16L37/092
Filed: 1974-01-17
Abstract: 1447141 Pipe couplings LEGRIS FRANCE SA 17 Jan 1974 [31 Jan 1973] 02272/74 Heading F2G Telescoping sleeve 15 has a seal 19 so that, when fluid within it is under pipeline pressure, it is urged in the direction A, to tighten the grip of spring fingers 10 on the pipe 25. On moving the sleeve 15 manually in the direction C, the fingers 10, which are integral with the socket 5 and have pipe gripping barbs 14, disengage the pipe under their own resilience, so that it may be withdrawn from the socket.
Patent GB-830854-A (GB)
Title: Electric disconnecting switch construction
IPC: H01H31/00
Filed: 1958-01-23
Abstract: 830,854. Air-break switches. S. & C. ELECTRIC CO. Jan. 23, 1958 [Feb. 7, 1957], No. 2281/58. Class 38 (5). A disconnecting-switch for operation with an auxiliary circuit interrupter 32 such as that of Specification 830,542, which carries the current while the disconnecting-switch is being opened, has terminal members 21 or insulators 18 and a switch-blade member 28 hinged on the lower member 21 and engageable with a fixed contact 29 on the upper member 21 which also carries an anchor member 41 for one terminal 40 of the interrupter 32. The other terminal of the interrupter is connected to a prong 36, on the end of the operating stick 33, which engages in a pullring 37 pivoted at 75 between two blades 48 forming the member 28. The contact 29 has a heel 66 which is engaged by the hook 69 of a latch 67 pivoted between the blades 48 and biased by a torsion-spring 71. When the ring 37 is pulled a detent 74 engages the latch 67 to release it from the heel 66 and a projection 70 on the latch 67 pushes on the other side of the heel to assist the opening movement. When there is sufficient clearance 42 (Fig. 2) between the member 28 and the parts connected to the contact 29 the interrupter operates to open the circuit. The contact 29 and the front of the anchor member 41 are so shaped (Fig. 11) so as to guide the flared edges 58 of the blades 48 to ensure contact alignment, and the rear of the member 41 is shaped at 83 to receive the terminal 40 on either side of the contact 29. The ends of the blades 48 are urged by springs 62, between washers 61 on a pin 60, against a spacer 63 which is slightly narrower than the contact 29. A pin 51 mounted between the blades 48 engages a stop 50 on the lower terminal 21 to limit the blade movement to 90 degrees but the pin 51 may be removed so that the blades can be moved through 160 degrees to engage stops 54. In this position a spring- biased ball in the terminal member engages in a hole, from which the pin 51 has been removed, to retain the blades. The switch may be mounted in an underhung position.
Patent GB-104186-A (GB)
Title: Improvements in or relating to a Machine for the Flanging of Pipes.
IPC: B21D17/04
Filed: 1917-02-16
Abstract: 104,186. Mannesmannrohren - Werke. Sept 22, 1914, [Convention date]. Void [Published under Sect. 91 of the Act]. Corrugating; flanging.-Corrugations or doubled flanges are formed by rotating a a pipe while its edge is acted on by idle rolls. The pipe e is rotated by a face-plate c and supported by rollers r while the corrugation is formed by the rolls n on the hydraulically-operated mandrel m. The pressure on the pipe is taken up by a multi-part collar h clamped on the pipe and supported by ball bearings g. The rolls n may have a flange, as shown in Fig. 2, to limit the size of the corrugation or double flange formed. The metal is heated, prior to bending, by movable water-gas burners p.
Patent GB-782377-A (GB)
Title: Electromagnetic sound recording or reproducing apparatus
IPC: G11B5/48
Filed: 1955-01-26
Abstract: 782,377. Magnetic sound-recording or reproducing apparatus. DEBRIE, A. V. L. C. Jan. 26, 1955 [Feb. 9, 1954], No. 2402/55. Class 40 (2). In an electromagnetic sound-recording or reproducing apparatus for use with A film 6 having a magnetic sound track and including either a recording and reproducing or an erasing head 8 or 7, the head a spring 45 which urges the head against the film 6 as it passes round a drum 5 and electrical connections 20<SP>1</SP> or 20 from the head to electrical contact members 36, 37 or 34, 35 are mounted in a unit pivotable about a shaft 19 or 18 rigid with the apparatus, the unit being removable from the shaft and replaceable thereon in a predetermined angular relationship, and the contact members automatically contacting complementary electrical contacts 31, 32 or 28, 29 on the apparatus when the unit is replaced. This provides for easy and quick replacement of the head by the operator, and as shown, the apparatus has both heads and the units comprise arms 11, 9 whose cylindrical bodies 13, 12 pivot on hubs 15, 14 carried by the shafts 19, 18 and prevented from rotation relatively thereto by pins 25 which engage shaft grooves 24. The ends of the springs 45 are located in the bodies 13, 12 and in counterbored rings 39 which are secured by grub screws 42 to the hubs 15, 14 and which rings 39 have rotatably secured thereto by pin-like extensions 44 knurled nuts 23 by which each assembly is secured to the shaft 19 or 18. By rotation of a knob 52 a cam 51 may selectively engage either extension 48 or 49 of the respective arms or both to withdraw the corresponding head(s) from engagement with the film 6. Electro-optical scanning of photo-electric sound recording tracks on the film may be effected alternatively to magnetic reproducing by a photo-electric cell 10 which extend through an opening 4 of a projector to which the apparatus is attached.
Patent GB-684008-A (GB)
Title: Machine for operating upon the soles of shoes
IPC: A43D37/00
Filed: 1951-01-31
Abstract: 684,008. Shoe soles. COMPO SHOE MACHINERY CORPORATION. Jan. 31, 1951 [July 13, 1950], No. 2406/51. Class 17 (ii). [Also in Groups VIII and XXIII] An outer shoe sole is simultaneously reduced, shanked out and roughened around the marginal edge to provide a receptive surface for sole attaching cement, by means of a band saw or knife machine (see Groups VIII and XXIII). Specification 684,002 is referred to.
Patent GB-289534-A (GB)
Title: Improvements relating to spring locks
IPC: E05B63/20
Filed: 1927-01-27
Abstract: 289,534. Tibbles, H. J., and Rely-a- Bell Burglar & Fire Alarm Co., Ltd. Jan. 27, 1927. Hasp fastenings; latches, sliding ; locks operating electric switches ; locks, preventing destruction of; spring locks; striking plates for locks and latches.-The bolt 2 of a spring lock is held in retracted position by a detent 16 pivoted to the casing and urged into engagement with a shoulder 19 on the bolt by a spring 20. the tail of the detent having a rod 22 extending through the casing so as to be engaged by a hasp or like bar, to release the bolt when the hasp-bar &c. is placed in position to be secured by a separate padlock. In place of the rod 22 the tail of the bolt may be bent outwards to be engaged by the hasp-bar. An alternative disposition of detent is shown in dotted lines at 16<1>. A modification is described in which a removable bar is provided with headed studs engaging in key-hole slots in a fixed plate, the head of one of the studs, as it slides into position, engaging and depressing a plate spring having a projection which engages the tail of the detent. In a further modification, Figs. 6, 7, an angle locking bar 30, to which a padlock may be applied as shown, is affixed, by hooks shown, to a plate 31 on the door-post when the door is open, the bar 30 having a projection 32 which enters the lock-casing when the door is closed and operates rod 22 to release the bolt of the door lock. In this case rod 22 does not project from the door, to avoid accidental release of the bolt. Bar 30 is removed when the door is to be used without locking. Any suitable form of detent may be used to retain the bolt retracted, and the striking plate may be combined with an electric switch operated by the shot bolt. According to the Provisional Specification the portion of the bolt projecting when shot may have one or more sheets of hard steel riveted in grooves therein to prevent the bolt from being readily sawn through.
Patent GB-1193591-A (GB)
Title: Improvements in Braiding Machines.
IPC: D04C3/00
Filed: 1969-01-16
Abstract: 1,193,591. Braiding - machines. NAGOYA RUBBER CO. Ltd. 16 Jan., 1969 [18 Jan., 1968], No. 2544/69. Heading D1C. The raceway 12 is provided in a partspherical surface 11 whose centre is the braiding point 14, so as to avoid lateral pull on the carriers 10.
Patent GB-494755-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B9/58
Filed: 1937-01-29
Abstract: 494,755. Photographic roll - film cameras. COLLINGS, C. E. HILLERY-. Jan. 29, 1937, Nos. 2654/37 and 3678/38. [Class 98 (i)] A series of exposures, for example four, all with different consecutive apertures, are made in rapid succession on cinema film at a single depression of the release button of the camera. The camera is set by winding a spring j<7> for one revolution until pin j<2> abuts against pin h<z>. The action of winding causes slack on film to be wound on to spool M through gears J, j<5>, j<6>, L and friction gear l<2>, m<1>. Gear wheel h<1> is prevented from rotating during winding by a pin k<1> resting in a notch of lever P. Mounted on the wheel h<1> is a ratchet wheel K with, in this instance, four steps or teeth. Upon the release of the pin k<1> by actuation of the button D, the wheel h<1> is rotated by the spring actuating through gearing and a centrifugal governor n2, a wheel N operating a claw mechanism n<3> for moving the film onwards in steps. As the wheel h<1> turns, the ratchet K moves a lever k<2> to trip the shutter four times in the course of its one revolution. The shutter R, Fig. 4, is shown as of a twobladed type operated through a lever r<3> and a two armed lever r<2>, r<4> of which one arm r<4> moves a disc S bearing four apertures so that each is in position in turn before the other arm r<2> trips the shutter mechanism. In a modification, Figs. 5 and 6 (not shown), an iris diaphragm is operated by a ratchet in steps over one of a series of ranges to alter the aperture for each exposure. Specification 265,048, [Class 98 (i)], is referred to.
Patent GB-161363-A (GB)
Title: Self-driving motor
IPC: F03G7/10
Filed: 1920-01-28
Abstract: 161,363. Shutt, F. W. Jan. 28, 1920. Self-driving machines. -A self-driving motor comprises a cog-wheel carrying a heavy chain which hangs freely at one side of the cogwheel but is caused to re-engage with the wheel at its lowest point, as shown in Fig. 2, the preponderance of weight on one side of the wheel being stated to cause rotation. The means for picking up the chain b at the . bottom of the wheel consists of a series of levers or hooks h linked to bell-cranked levers d, d<1> pivoted on the periphery of the wheel and actuated by the engagement of the arms d with a recess f formed on the upper surface of an horizontally rotating wheel or drum c.
Patent GB-113332-A (GB)
Title: Improvements in and relating to Controllers for Electric Circuits.
IPC: B60L15/12
Filed: 1917-02-23
Abstract: 113,332. British Thomson - Houston Co., (General Electric Co.). Feb. 23, 1917. Master control systems; controllers, drum.- A drum master-switch for controlling the circuits of a number of contactors is provided with condensers connected to each contactor - actuating circuit and across the corresponding interrupting gap at the master-switch. This assists to deenergize the contactors and prevents sparking and enables the controller to be built on a small scale. Each conducting-segment of the controller has associated -with it an insulating- segment 14, and the two segments form a ring, as shown in Fig. 2, so that the contact finger 16 rides directly from one segment to the other. The condensers 10, 11, 12 aro connected between the contact segments and the fixed fingers. When the controller is moved from the position d back to the position c, the condenser 10 is connected in series with the contactor coil 21 and is shunted across the break at the controller The condensers 11, 12 are connected similarly when the circuits of the coils 20, 17 are broken.
Patent GB-1068291-A (GB)
Title: Improvements in or relating to the casting of metals
Inventor: WILLAN RONALD ROBERT
IPC: B22D21/00
Filed: 1963-01-22
Abstract: 1,068,291. Moulds; pouring apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 16, 1964 [Jan. 22, 1963], No. 2700/63. Heading B3F. Apparatus for casting metal produced by a reduction process comprises a reaction vessel (1) the lower end (12) of which is connected to a tundish (4). Directly beneath the tundish is located a casting mould (3) in the form of a graphite catch pot (5) with a concentric internal cylindrical sleeve (6). Metal to be melted in the form of pellets (2) is placed in the reaction vessel and is heated to the required melting temperature. A metal disc (16) of similar metal to that being cast, positioned across the pouring orifice (15) of the tundish prevents the molten metal from discharging into the mould sleeve (6) until sufficient time has elapsed to permit the separation of the slag from the molten metal. The disc then melts and the metal discharges into the mould sleeve (6). The dimensions of the metal disc are such as to delay the discharge of metal into the mould until separation of the slag and inclusions has been effected.