baber/WOPTO huggingface dataset:
Patent GB-313394-A (GB)
Title: Improved machine or apparatus for bending metal strips
IPC: B21D7/022
Filed: 1928-10-29
Abstract: 313,394. Blair, P. C., and Templeton, D. K. Oct. 29, 1928. Angular bending; formers.-A machine for bending metal strips, particularly for forming brackets for eaves, gutters, or rain water pipes, of the type consisting of a fixed former to which one end of the strip is clamped and a pressure member or roller adjustably carried by a lever pivoted on the axis of the former, has a member fixed to the former for limiting the stroke of the pressure member and thereby offsetting the free end of the strip from the curved portion thereof. The strip 6 is clamped to the former 5 by a serrated jaw 7 pivoted at 8 and operated by a weight 10 or spring. The bending roller 11 is connected by slotted slides 15 so as to be adjustable in slots 14 in a forked lever 12 pivoted at 13. During insertion of the work the lever rests on a stop 18 and is then traversed over the former to bend the strip, finally co-operating with an adjustable L-shaped stop 19 to form the straight portion 6a on the end of the strip. Packing strips 21 may be placed on the former to suit the radius of curvature.'
Patent GB-732035-A (GB)
Title: Improvements in chain-shifting devices for cycles having a plurality of sprocket wheels
IPC: B62M9/1242
Filed: 1953-11-11
Abstract: 732,035. Change-speed gearing. CAMPAGNOLO, T. Nov. 11, 1953 [Nov. 12, 1952], No. 31316/53. Addition to 726,801. Class 80 (2). The chain-shift change-speed gear for bicycles of the parent Specification is modified by detachably connecting at 18 the movable side 11 of the parallelogram linkage 7, 9, 10, 11, on which the chain guiding and shifting pulley 12 is mounted, to the link 10, so that it can rotate about its pivot 17 with the link 9 to disengage the pulley from the chain, and by constructing the hinge 4, 5, Fig. 4, between the parallelogram linkage and the stirrup support 1 so that, when the guiding pulley 12 is disengaged from the chain and the control cable 21 is disconnected from the link 9, the pulley can be rotated about the hinge. The hinge comprises a drum 5, rotatable about a pin 4 fast in the stirrup, containing a helical coil spring 35 having one end fast in the stirrup 1 and the other end fitted into one of four holes 36 in the drum 5, whereby the tension of the spring and hence the tension in the chain can be adjusted. The control cable 21 is slidable in a sheath 22 and is kept taut by a screw-threaded nipple 23 engaging an arm 25 on the drum 5.
Patent GB-299718-A (GB)
Title: Method of accelerating flowing characteristics of coal
IPC: B65G69/20
Filed: 1927-09-12
Abstract: 299,718. Trent Process Corporation, (Assignees of Trent, W. E.). Oct. 25, 1926, [Convention date]. Divided on 277,660, [Class 55 (i), Coking &c.], under which a Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 15, 1927. Pneumatic conveyers.-In a pneumatic conveyer for feeding pulverized coal from storage to a furnace, &c., means are provided for heating the coal to a temperature, e.g. 200‹ C., at which gas is evolved continuously in order to accelerate its flow. The conduit is surrounded by a jacket through which a heating medium, e.g. steam, is passed and the storage receptacle is heated. The jacket may be replaced by heat insulating material.
Patent GB-886256-A (GB)
Title: Improvements relating to propeller pitch change mechanism
IPC: B64C11/38
Filed: 1959-09-15
Abstract: 886,256. Screw propellers. UNITED AIRCRAFT CORPORATION. Sept. 15, 1959 [Oct. 15, 1958], No. 31383/59. Class 114. A pitch change mechanism for a propeller having a plurality of blades the pitch of which is varied by a hydraulically actuated piston rotating a toothed member engaging teeth on the base of the blades, comprises a pitch lock including one element 52 movable with the blades (being splined to said toothed member) and another element 54 fixed against rotation relative to the hub (being fixed to the hub barrel), springs 60 urging the lock elements into engagement to prevent movement of the blades in a pitch decrease direction, fluid pressure in a chamber 58 acting on a piston sleeve 56 for urging said elements into a disengaged position, a servo device 82 for controlling pressure in the chamber 58, a valve 78 for controlling the position of the servo device, and a speed responsive device 72 for varying the opening of the valve 78. A selector valve 84 senses both the pressure in the low pitch line 34 and the pressure in the high pitch line 36 and selects the higher of the two to conduct this pressure first of all to the supply line 86 leading to the servo device 82, from which it flows via passage 92 into chamber 58 to move piston 56 to disengage the lock elements 52, 54. At the same time the selector valve 84 also passes this selected high pressure via line 120 to pressurizing and regulating valve 100 which passes fluid at a predetermined pressure via line 124 to chamber 106 and through passage 126 to chamber 104. When an overspeed exists, flyweights 72 move outwardly to raise the flapper of valve 78 against the force of spring 74, permitting regulated pressure fluid from chamber 104 to flow through orifice 80 into chamber 108 to balance with the pressure in chamber 106, i.e. to balance pressures on either side of the servo valve 82, so that spring 110 moves said valve to the left thereby connecting pitch lock chamber 58 and passage 92 to passage 96 leading to the low valve barrel pressure. Draining of pressure from chamber 58 allows springs 60 to move pitch lock element 52 into engagement with element 54. 101 is an additional pressurizing valve for increased flow area to assure more rapid response, and 130 is a low pitch relief or surge valve. Specifications 683,906, 724,284, 754,095 and 846,811 are referred to.
Patent GB-800826-A (GB)
Title: A machine for manufacturing cement roofing tiles, pavement slabs and similar articles
IPC: B28B5/08
Filed: 1955-11-03
Abstract: 800,826. Moulding concrete tiles, slabs &c. MJOLBY NYA MEKANISKA AKTIEBOLAGET. Nov. 3, 1955 [Nov. 5, 1954], No. 31447/55. Class 87(2). The vibrating plate 8 which rests on the surface of the concrete in the mould 4 is, after moulding is completed, removed from the surface of the concrete by a combined lifting and lateral movement. (If the plate is lifted vertically off the concrete it tends to stick thereto). The drawing shows a horizontal table 1 which is intermittently rotated in 90 degrees steps about a vertical support 2 to position each of four moulds in turn below the vibrating plate 8. The plate is carried by a vibrator 7 which is horizontally slidable on a guide 9, and is urged outwardly by a spring 16 and pulled inwardly by a chain, cable &c. 13 secured to a wheel 12. The guide 9 and wheel 12 are secured to a support member b mounted on the top of a piston rod 10 which may be raised by pressure acting on piston 11. A chain 15 fastened at one end to the support 2 runs around a chain wheel 14 fast with wheel 12, its other end hanging freely. In operation the rod 10 is raised, thus raising the vibrator plate off the concrete in the mould, and simultaneously the chain 15 pulls the wheels 14, 12 counterclockwise so that the vibrator is pulled inwardly. The relative movement between the table and a stationary curved sector 6 causes lifting pins 5 to be raised which engage a steel plate underneath the cast article and lift it out of the mould.
Patent GB-208875-A (GB)
Title: An improvement in and relating to shaft couplings
IPC: F16D1/12
Filed: 1922-11-17
Abstract: 208,875. Gale, C. H. Nov. 17, 1922. Shaft - couplings; securing chain-wheels on shafts. - For securing together shafts or the like in magneto drives &c. in such a manner that they can be readily adjusted relatively, a complete ring of wormwheel teeth is formed on a sleeve d, Figs. 2 and 3, secured to one shaft f and is engaged by a worm g operable at both ends and carried in a ring c connected to the other shaft e. A disc a secured to the shaft e mav be connected to the ring c by an Oldham coupling disc b of rubber, fibre, &c. to absorb shocks. The ring c is split and after adjustment is secured in position by a screw h also operable at both ends. The parts may be graduated to facilitate adjustment. In the modification shown in Fig. 5, a sprocketwheel o is adjustable on a sleeve g secured to the shaft by worm-and-wheel means m, the parts being locked in adjusted position by washers engaging the end of the sleeve j and arranged under the heads of screws n screwing into the wheel o.
Patent GB-738553-A (GB)
Title: Improvements in or relating to automatic gain control circuits
IPC: G01S3/42
Filed: 1953-11-13
Abstract: 738,553. Radio receiving circuits; radio direction finding. BENDIX AVIATION CORPORATION. Nov. 13, 1953 [Nov. 21, 1952], No. 31578/53. Classes 40 (5) and 40 (7). In an automatic gain control (A.G.C.) circuit comprising a branched A.G.C. amplifier 17 feeding a rectifier 19 from which a control voltage is fed back to the main receiver channel 12, 13, via resistance-capacitance network 21, 22, 23, 28, the suppressor grid of the valve 17 is connected to point 24 in the network. In this way low-frequency variations in the signal, which the network is ineffective in filtering are fed back degeneratively to the valve 17 and so removed from the gain control voltage. The arrangement is primarily for use in a directionfinding system having a rotating directional characteristic aerial, in which maximum and minimum intensities occur during each revolution.
Patent GB-1348658-A (GB)
Title: Method of treating waste water
IPC: C02F3/26
Filed: 1971-07-06
Abstract: 1348658 Treating sewage UNION OARBIDE CORP 6 July 1971 [7 July 1970 17 May 1971] 31593/71 Heading C1C In an apparatus for oxygenating and ozonating waste water (e.g. municipal sewage) the waste water from line 13 is mixed in compartments 12a-12d of zone 11 with activated sludge from line 15 and oxygen-rich gas from line 14, waste gas is discharged from zone 11 through'line 17, oxygenated liquor is discharged from zone 11 into clarifier 19 to separate sludge from oxygenated water, at least part of the sludge is returned to zone 11, the oxygenated water is treated with ozone and oxygen gas in zone 29 to disinfect or sterilize the water and at least part of the spent gas from zone 29 is passed to zone 11. The ozone and oxygen gas contains 0À5-4% by vol. ozone, the spent gas from zone 29 contains at least 60% by vol. oxygen and the waste gas from zone 11 contains 20-70% by vol. oxygen, the oxygen therein amounting to no more than 40% by vol. oxygen fed to zones 11 and 29. The gas fed from source 25 to ozone generator comprises at least 75% by vol. oxygen. The water and ozone and oxygen gas are mixed for 2À5-20 mins. to dissolve at least 2 parts ozone per 10<SP>6</SP> parts water. The disinfected water contains 10-60 p.p.m. higher dissolved oxygen content than the oxygenated water from the clarifier. Gas direct from source 25 may be used to supplement the spent gas sent to zone 11. In an embodiment (not shown) the sludge from the clarifier may be treated with spent gas from the ozonation zone, prior to being returned to zone 11. The apparatus may comprise means for controlling the amount of ozone produced by the generator in relation to the water flow rate, means for controlling the proportion of ozone in the gas fed to the ozonation zone and means for sensing the dissolved oxygen content in the purified water.
Patent GB-485121-A (GB)
Title: Improvements in and relating to fire alarm systems
IPC: G08B17/06
Filed: 1936-11-19
Abstract: 485,121. Thermal switches. ELLISTON, C. E. Nov. 19, 1936, No. 31689. [Class 38 (v)] A normally open electric circuit incorporating an indicating device forms a fire alarm system, being closed upon the establishment of combustion at any point in the circuit. An inner conductor 1 carries spring members 2 which are enclosed in a tube 3 of celluloid or other insulating combustible material, round which is lapped another conductor 4, the whole being enclosed in a further inflammable sheath 5. The whole may be made of any convenient length, combustion of the sheath at any point allowing contact between spring members 2 and conductor 4 to operate an indicating device or fire-quenching apparatus, collars 6 of a non-inflammable material such as asbestos, localizing burning of the sheath.
Patent GB-1187714-A (GB)
Title: Photographic Copying Machine
IPC: G03B27/34
Filed: 1968-07-03
Abstract: 1,187,714. Photo-printing apparatus. EUROGRAPH GES FUR PHOTOMECHANIK m. b. H. July 3, 1968 [July 21, 1967], No.31724/68. Heading G2A. A photographic projection printing apparatus comprises a rectilinear housing 1 having its top surface formed by a glass plate 2 for receiving an element to be copied; an objective 6 adjustably mounted within the housing at a variable height below the exposure surface; an inclined deflector mirror 7 within the housing; and means for mounting a cassette 9 containing light sensitive material within the housing at an adjustable distance from the mirror. The housing may have a plurality of guide surfaces 4 for receiving the carrier plate 5 of the objective, the surfaces 4 being arranged at different heights below the glass plate 2 while the mounting means for the cassette 9 comprises a plurality of upstanding guide surfaces at different distances from the mirror. Indicator lamps operated by micro-switches show the positions of the lens 6 and cassette 9, and the micro-switches may be inter-locked to prevent exposure when the lens and cassette positions do not correspond. Alternatively the lens and cassette may be motor or hand set.
Patent GB-742654-A (GB)
Title: Improvements in and relating to paint brushes
IPC: A46B15/00
Filed: 1952-12-16
Abstract: 742,654. Painters' brushes. BRITON BRUSH CO., Ltd., and WRIGHT, F. R. Dec. 16, 1953 [Dec. 16, 1952], No. 31855/52. Class 19 A paint brush comprises a tuft including nylon or like synthetic filaments having its butt end fused together and impregnated with rubber or like binding agent to provide a, region which may be nailed or riveted to a ferrule. The filaments may first be inserted in the ferrule with the butt end protruding. This end is then dipped in a rubber solution and the ends of the bristles are thereafter fused together (as at 14). The tuft is then moved into its final position in the ferrule and further rubber solution 15 is applied. The rubber is then vulcanized to form a hard mass 13 through which staples 17 may be driven.
Patent GB-282215-A (GB)
Title: Improvements in and relating to gas ovens or stoves
IPC: F24C3/08
Filed: 1926-12-17
Abstract: 282,215. Lynch, H. L. Dec. 17, 1926. Gas cooking-stones.- The bottom of a gas oven is enclosed, either permanently or by means of a removable drip tray 2, and the burners are located outside the oven with their nozzles 7 in front, and outside of, air inlet apertures 6 formed in the walls near to the bottom. Secondary air, heated by contact with the flames before entering the apertures 6, is entrained by the gas jets passing through the apertures. Fig. 5 shows a modification for existing ovens with internal burners, a tray 8 being provided having flanged sides 8a, 8b enclosing the burners and apertures 9 registering with the burner jets, formed in the sides.
Patent GB-624453-A (GB)
Title: Process for dyeing fibrous materials which possess no affinity for dyestuffs
IPC: C03C25/475
Filed: 1946-10-29
Abstract: Glass fibres are dyed with metallized or non-metallized acid wool or direct dyestuffs by pretreating them with a water-soluble reaction product of formaldehyde and an acyclic compound of the urea group which contains at least once the atomic grouping <FORM:0624453/IV (c)/1> and consists of elements having an atomic weight of at most 16 and in which the atomic ratio of oxygen, when present, to carbon is smaller than 1 : 1, and wherein the fibres are additionally treated simultaneously with or after dyeing with a hardenable aminoplastic precondensate.  In an example, glass fabric is treated with a solution of the water-soluble reaction product of formaldehyde with dicyandiamidine, dried and treated on the foulard with a solution containing dimethylolurea, ammonia, ammonium chloride and a dyestuff, many of which are specified. Specification 592,307 is referred to.
Patent GB-755317-A (GB)
Title: Improvements in looms with mechanism for varying weft density
IPC: D03D37/00
Filed: 1954-11-05
Abstract: 755,317. Take-up motion for looms. SOC. D'APPLICATIONS GENERALES D'ELECTRICITE ET. DE MECANIQUE. Nov. 5, 1954 [Nov. 6, 1953], No. 32107/54. Drawings to Specification. Class 142 (2). Bands of different pick density are produced in a circular or other loom by driving the take-up roller through either of two gear trains selected by a clutch operated by an electromagnet. A pinwheel rotated by engagement with the fabric drives a cam having interchangeable lobes to actuate a switch in the magnet circuit.
Patent GB-1408103-A (GB)
Title: Magnetic recording and or reproduction apparatus
IPC: G11B15/29
Filed: 1973-07-05
Abstract: 1408103 Rotary-head tape recorders; autothreading devices SONY CORP 5 July 1973 [8 July 1972] 32115/73 Heading G5R An autothreading, rotary-head tape recorder includes a pinch-roller 28 which, when tape has been wrapped round drum 1, assumes a position spaced from the capstan 14 and must be pressed thereagainst for transducing operation by actuating a device 68 which otherwise holds the roller 28 away from the capstan to permit fast forward or rewind without unwrapping the tape from the drum. The pinch roller 28, which is mounted with a tape pull-out pin 29 on an arm 26 pivoted at 27 to a rotatable ring 21, is actuated by an abutment 75 of an arm 69 on energisation of a solenoid 80. Otherwise, the arm 26 is biased against a stop 67 by a spring 66; the increase in tape tension during fast transport is, however, sufficient to overcome the spring 66 and the pinch roller must be held away from the capstan by a latch member 81 on the arm 69, which engages an end 82 of the pin 29, the arm 68 being itself held by a strenger spring 72. To prevent the tape riding up off the drum 1 during fast transport, the upper, rotatable drum half (1e), Fig.6 (not shown), which is spaced from a lower, fixed half (1f), has a flange (1d). The recorder also includes reel brakes 84, 85 which are applied, by de-energising a solenoid 93, just before the end of a tape loading operation to prevent tape spillage.
Patent GB-832731-A (GB)
Title: Head lining assembly
Inventor: STAHL LLOYD ELGIN
IPC: B60R13/02
Filed: 1957-10-15
Abstract: 832,731. Motor vehicle roof lining. WOODALL INDUSTRIES Inc. Oct. 15, 1957, No. 32150/57. Class 20(4) A head lining for a motor vehicle body comprises a plurality of flexible panels 136, 138 held along their margins by flexible supporting strips 140, the assembly of panels and strips being bowed and stressed upwardly to the mid portion of the roof body 120, the outer side panels 138 being transversely bowed upwardly and supported on their longitudinal margins on supporting means 166 and the centre panel 136 bowed upwardly transversely and longitudinally. The centre panel 136 which may be either of uniform width or triangular is of resilient thin hardboard, perforated to permit passage of sound waves to an insulating pad 142 of fibrous wadding, such as fibre glass. The supporting strips 140 as described in Specification 832,730 comprise base portions 144 and cap portions 146 having spring lips 148 and side walls 150 which engage the panels.--The strips are bowed upwards and secured at their ends by screws 152 engaging a box-like frame portion 128 on the roof 120 and secure centre panels 136. The side panels 138 may be of fibre-board and are bowed to a compound curvature which is achieved by bending along transverse beads 156. The head liner panels and strips may extend transversely or lengthwise of the vehicle body.
Patent GB-628269-A (GB)
Title: Improvements in and relating to mounts for printing plates
IPC: B41F27/04
Filed: 1946-10-31
Abstract: 628,269. Printing surfaces. MURRAY, J. Oct. 31, 1946, No. 32372. [Class 100 (ii)] In a modification of the mount for the assembly of flat printing plates described in Specification 559,470, both the fore-edge end central-plate gripping dogs move over curved paths while remaining parallel with each other, means being provided for holding the plates against longitudinal movement so as to maintain a predetermined head and tail margin on the printed sheets. Fig. 1 shows half of a complete mount which comprises four subsections such as A, each having two side by side plates, so that the mount carries four plates on each side of the longitudinal centre line. The sub-sections are joined together by tie-bars 11 mounted in T-shaped slots in the underside of the sections and lap joined at 12 by bolts 13 and connected to the front bar 3 by screws 14. The plates are held, on the fore or outside edges, by grippers 31 and on the central edges by grippers 25, grippers 31, 25 being actuated by eccentric pins 32 or 24 respectively mounted on the upper ends of a pair of circular discs 16, 17, Fig. 7, rotatably mounted flush within holes in the mount. The discs are screwed together by a bolt 19 and rotated by pinion wheels 18 or 34 engaged by longitudinal racks, and a frictional clutch in the form of a spring 27 between the pinion and disc 16 accommodate small errors in the shape of the printing plates. The grippers 25 are operated by racks 20 slidable in T-shaped slots 7, 8 by screws 22, 23, threaded into the racks ; the rack in slot 7 operates the middle gripper in alternate sub-sections and operates the outer pair of central grippers in the other sub-sections to clamp the right-hand plates, and rack 20 in slot 8 clamps all the left-hand plates in a similar manner. Grippers 31, actuated by the rotation of screws 35 operate racks 36 sliding in slots 5 and 10, and have an extension 37 travelling over a scale 38 on the front bar 3 to indicate the width of the foreedge margins. Longitudinal movement of the plates is prevented by a projection 50 on a slide member 51 engaging a recess in the adjacent edge of the plate, the slide 51 working in a slot 52 and receiving lateral movement from the gripper 31 by a key and slot connection 53, 54. The correct location of the plates may alternatively be effected by spring-loaded projections 28 mounted in the ties 11, 12,. and passing through the mounting and engaging recesses in the back of the printing plates. The sheets are marked for collating purposes &c. on the back portion where the final fold is made by a projection on a bar which can be plugged into holes 40 in the bolts 19. The mountings are anchored to the machine bed by saddles 42 over extended heads of screws 4 attaching the front bar 3 to the sub-sections.