baber/WOPTO huggingface dataset:
Patent GB-189527-A (GB)
Title: Improvements in and connected with frames of combined school desks and seats and the like
IPC: A47B39/04
Filed: 1921-08-31
Abstract: 189,527. Bennet, W. C. Aug. 31, 1921. School desks; desk frames.-The frames 1, 2, 3 of school desks are made of H, U or T section rolled or pressed metal, and the ends are split or cut and bent over at right-angles tc form brackets 1<a>, 1<b>, 1<c>, 2<a> and 2b for supporting the desk and back rest, or the parts 1<a>, 1<c> may support other brackets to which the writing board or desk is connected. In a modified form, the terminal brackets are detachable and are cast or stamped.
Patent GB-334675-A (GB)
Title: Enclosures for movable members
IPC: F16N31/00
Filed: 1929-07-27
Abstract: 334,675. Little, C. R. July 27, 1929. Boxes.-A flexible sleeve 4 of rubber or the like for closing the end of a bearing 3, Fig. 1, for an angularly and axially movable shaft 2 is formed at one end with an internal annular groove 6 adapted to engage a lip 7 on the bearing, while the other end is provided with one or more internal grooves carrying rings 10 of metal, fibre, felt, or the like, which engage the shaft. The ring 10 may be in the form of a helix. The sleeve 4 may be applied to the end of the stationary member 28, Fig. 4, of an adjusting device for a Bowden-wire cable, the ring 10 engaging the cable 27. The interior of the sleeve forms a chamber for lubricant. The sleeve may also be applied to the end of the guide 32, Fig. 5, for a valve stem 33. For enclosing the spring 17, Fig. 3, encircling the end of a flexible brake cable 16, the groove 6 in the sleeve 4 engages a disc 26 carried by the cable, while the rings 10 telescope over a flexible sleeve 20 having a groove engaging a lip 22 on the abutment 23 for the spring. The composite enclosure thus produced contains lubricant.
Patent GB-1007226-A (GB)
Title: Shut-off valve for metered flows
IPC: F16K31/383
Filed: 1963-06-11
Abstract: 1,007,226. Valves. ROCKWELL MANUFACTURING CO. June 11, 1963, No. 23189/ 63. Heading F2V. A valve controlling flow from an inlet 11, Fig. 1, to an outlet 12 has a fully open, a closed, and an intermediate position. A main valve element 16 is loaded by a spring 17 towards a seat 14. The chamber 13, at the back of the valve element, is connected by a passageway 25, throttle 24 and an axial bore in a spindle 18, carried by the valve element, to the upstream side and by passageway 28, 29 to the downstream side. Flow through these passageways is controlled by a manually actuated pilot valve 27 which comprises a lever actuated spindle 32 connected to a bush 34 fixed to a sleeve 35. Flow through the passageway 25 is controlled by a valve sleeve 30, loaded by a spring 37 against a shoulder 36. Flow through the passageway 28, 29 is controlled by a valve member 31 having a stepped spindle 39 and springs 41, 43 located between the valve element and a washer 40 and between a washer 42 and a flange 38 of the sleeve 35. A spring 44 acts on the bush 34 and the springs urge the control valve to the position shown. When the spindle 32 is moved upwards, the valve sleeve 30 first closes the passageway 25 after which compression of the spring 43 opens the valve 31 with a snap action allowing the release of fluid from  the chamber 13 and the inlet pressure moves the main valve element to the fully open position. When the spindle 32 is released, the control valve moves to the position shown and the main valve closes at a speed determined by the setting of the throttle 24. However, as shown in Fig. 7, the spindle 18 is formed with two recesses 49, 50. The recess 49 is engaged by a screw 51 to prevent rotation of the spindle whereas if the spindle 32 is depressed after the main valve is opened so that the spindle 32 engages the top of the spindle 39, the valve sleeve 30 engages the recess 50 and thus holds the main valve in a partially open or intermediate position. Should the spindle 32 be depressed when the main valve is closed, the spring 37 allows the sleeve 35 to move downwards relatively to the valve sleeve 30. The intermediate position may be adjusted by adjusting the spindle 18 relative to the main valve element 16.
Patent GB-207271-A (GB)
Title: Improvements in signal devices for road vehicles
IPC: B60Q1/34
Filed: 1922-08-26
Abstract: 207,271. Armstrong, J. E. Aug. 26, 1922. Signalling any of a number of possible indications. - Signalling apparatus for road vehicles comprises a box 1 containing lamps 2 of different colours and having an observation mirror 4 attached to its side. The lamps are controlled bv a switch 8 located near the driver's position and when illuminated shine both to the front and rear of the vehicle through glass windows in the box. The Provisional Specification states that a coloured lamp may be located on or near the edge of a mirror of known type.
Patent GB-300729-A (GB)
Title: Improvements in friction clutches
IPC: F16D13/04
Filed: 1927-09-05
Abstract: 300,729. Wright, F. H., and Lewis, E. W. Sept. 5, 1927. Clutches, friction; operating clutches; controlling variable-speed gearing.-The driving-disc 4 of a self-tightening fricton clutch is splined to the driving-shaft 5 and is actuated by the pressure on a thrust bearing 13 of balls 11, loosely carried in a spring- biassed plate 9 and coacting with inclined races 12 on a fixed part 7, which has a boss 8 rotatably supporting the plate 9. The driven disc 4<a> is secured to a shaft 29 and is pressed into initial engagement by a light spring 35, being further tightened in proportion to the load by a worm or helical drive 30, 36 to the shaft 37 of a changespeed gear. The sliding member 28 of the gear and the plate 9 are controlled by a single lever 22 working in a notched gate 26. The plate 9 is turned against its spring 38 by an arm 16 having slotted connection therewith and carried by a rod 17, slidable in a hollow shaft 18, through a slot 24 in which the arm 23 of the lever 22 projects to engage a notch 25 in the rod. The lever is pivoted in a fork 21 on the shaft 18, which carries the gear-shifting arm 27, so that depression of the lever opens the clutch, while lateral pressure thereon rotates the shaft to change gear.
Patent GB-306444-A (GB)
Title: Improved cellular concrete and method of making the same
IPC: C04B28/22
Filed: 1928-08-13
Abstract: 306,444. Billner, K. P., (Assignee of Broander, N. E.). Feb. 20, 1928, [Convention date]. Porous compositions.-Porous concrete is made by injecting or generating gases in a plastic mixture of puzzuolanic material, ground to cement fineness, lime, hydraulic cement and water, with or without an aggregate. Suitable puzzuolanic materials are blast furnace slag, lava and trass. Suitable aggregates are granulated slag, cinders, sand and crushed stone. When Portland cement is used a certain amount of lime and gypsum may be added. The mass is aerated preferably by mixing aluminium powder with the composition, but other methods employing frothing flotation agents, soap solutions, yeast, &c. may be used. An example of suitable proportions for the active ingredients is 20 parts of Portland cement, 70 parts of pulverized blast furnace slag, 5 parts of lime and 5 parts of gypsum. When slag exceptionally rich in lime or lime and magnesia is used, the active ingredients may consist entirely of lime and slag. Reference has been directed by the Comptroller to Specifications 212,419, 235,006, and 258,073.
Patent GB-1173442-A (GB)
Title: Improvements in or relating to the Positional Control of Water Borne Vessels
Inventor: SAUNDERS DESBOROUGH WILLIAM
IPC: G05D1/02
Filed: 1967-05-19
Abstract: 1,173,442. Radio navigation. DECCA Ltd 17 May, 1968 [19 May, 1967], No. 23348/67. Heading H4D. [Also in Division G3] A floating vessel is maintained in a desired position and heading, or on a predetermined course and heading, by automatic control of two vertical axes, variable pitch propellers positioned respectively at the bow and stern, the error signals of position and heading being obtained respectively from a radio position fixing system between the vessel and the shore and from the magnetic or gyroscopic compass of the vessel. A transmitter and receiver unit 4 carried by the vessel transmits continuous wave constant frequency radio signals to shore-based stations 6, 8 which re-radiate signals synchronized in phase with the transmitted signals for phase comparison in the receiver of unit 4 with the transmitted signals, thus providing positional output signals which are converted by a digital computer 20 to geographical positional co-ordinates. The latter are compared in comparator 24 with fixed or time-varying signals from a generator 26 respectively representative of the desired position or course and the two-error signals so produced are fed to a resolver 28 controlled by the compass 16 to produce output signals 32 representing the positional error in axes defined by the heading direction (X) and transversely thereto (Y). The signals 32 are fed to respective control amplifiers 34 whose frequency characteristics are suitably chosen to provide overall stability of the complete closed loop system. The outputs of amplifiers 34 are fed via a change-over switch 38 to coefficient and summing devices 60, 62, 64, 66 of which 62 and 66 also receive heading error signals for combination with the Y components of the positional error signals. Members 60-66 respectively control units 68, 70, 72, 74 forming control pairs for the bow and stern propellers 10, 12 to vary the thrust in the X and Y directions. The heading error signals are obtained from a circuit comprising the compass 16, comparator 44 fed with a desired heading signal manually adjustable by member 46, amplifier 50, change-over switch 54 and inverter 59. Switches 38, 54 permit manual control of the position and heading by members 40, 42 and 56, 58 respectively. The computer may be omitted if shore stations 6, 8 are suitably located to provide ranges for use directly as geographical cartesian co-ordinates. An additional transmitter and receiver 84 and additional shore stations 80, 82 may be provided to insure against failure of the system comprising members 4, 6, 8. If the vessel is to be moved continuously or in steps along a predetermined path, e.g. in a dredging operation, by time varying the position signals from generator 26 to define the required track, such variation may be produced by an electromechanical timing device or by suitable programming of the computer 20.
Patent GB-449374-A (GB)
Title: Improvements in process of and machine for crushing and mixing
IPC: B02C19/00
Filed: 1935-08-20
Abstract: 449,374. Impact pulverizers. TATE, F. R., 103, Kingsway, London.-(University Patents, Inc.; 60, Wall Street, New York, U.S.A.) Aug. 20, 1935, No. 23385. [Class 59] An impact pulverizer comprises two horizontally opposed. flared members 11, 21 rotated independently, material fed to the small end of the member 12 sliding along the flared surface onto an impact ring 34 from which it is collected by a bucket wheel 29 and delivered into the small end of the member 11 along which it slides and is projected onto material sliding along the flared member 21. As shown, the member 11 comprises an independently driven pulley, having an internal flared surface 12, revolving on a shaft 6 and an opposed flared surface 19 is formed on the member 21 which is revolved in the same or opposite direction by the shaft 6. The bucket elevator 29, driven by a belt 31, is mounted on a sleeve 28 and has a flared impact surface 37 to receive the material discharged from the surface 12. A hopper 38 is mounted inside the bucket elevator 29 and is maintained stationary by lugs 40 on a plate 26 engaging in recesses in the hopper. A stationary recessed ring 41 receives pulverized material through a ring of holes 33 and discharges it through an outlet 45. The material to be pulverized is fed to a stationary hopper 9 and enters the surface 12 of the pulley 11 and is thrown onto the revolving surface 37, the larger pieces falling or being conveyed into the hopper 38 for transference to the flared surface 19 from which it is thrown onto the fresh material entering the surface 12. Crushing balls &c. may be introduced with the material and the material may be ground in a dry state or with water.
Patent GB-691617-A (GB)
Title: Improvements in or relating to wire screens for the washing of minerals
IPC: B07B1/46
Filed: 1950-09-25
Abstract: 691,617. Sieves. BOOTH, J. H. Sept. 25, 1951 [Sept. 25, 1950], No. 23401/50. Class 117 A-wire screen as used for the washing of coal and other minerals comprises a number of wires 10 of wedge section mounted in spaced relationship on a number of rods (only one shown) 11. The edge region of the screen is embedded in a frame 12 of rectangular cross-section which consists of rubber or a rubber-like plastic material, the frame being provided with a cutaway portion 13 to accommodate the wedge wires, and holes to accommodate the rods 11.
Patent GB-583884-A (GB)
Title: Improvements in non-spill arrangements for electric accumulators
IPC: H01M50/35
Filed: 1945-09-11
Abstract: 583,884. Galvanic batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd., and GRAY, R. Sept. 11, 1945, No. 23421. [Class 53] A storage battery is provided with a filling opening b in a threaded well c formed in one of the side walls of the container. If the battery comprises two cells in series each cell is provided with a filling opening, the two openings being situated in the same well c. A plug i fitted with a washer i completely closes the holes b when screwed into the well, the washer j being prevented from spreading to the walls of the well by a ring k thus leaving an annular space outside the ring which is in communication with the atmosphere through holes l in the plug i. Gases generated in the cells are vented into this annular space through openings h which communicate with the cells through passages g, tubes e and chambers d situated in the upper part of the cells. Instead of the holes l grooves may be provided in the threaded walls of the well c.
Patent GB-866254-A (GB)
Title: Improvements in devices for cooling the control rods of nuclear reactors
Inventor: ERTAUD ANDRE
IPC: G21C19/04
Filed: 1959-07-08
Abstract: 866,254. Nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 8, 1959 [July 22, 1958], No. 23508/59. Class 39(4). The flow of coolant over a nuclear reactor control rod is varied according to the depth of insertion by making the control rod channel increase in width toward the centre of the core of the reactor. Fig. 1 shows two boron carbide rods 2 in different zones of a reactor. Throttle devices 7, 8 allow a flow of coolant CO 2  appropriate to each zone. Each rod moves in a channel consisting of tubes of successively larger diameters and carries a plug 4. As a rod moves into the core the effective cross-section of its channel increases and so does the coolant flow. When a rod is almost fully withdrawn, plug 4 almost closes the throttle 5, allowing a small flow of coolant. Withdrawal a little further shuts off the channel for maintenance.
Patent GB-387731-A (GB)
Title: An improved rotary fluid pressure pump, engine, variable speed power transmitter, orbrake
IPC: F01B15/00
Filed: 1931-08-21
Abstract: 387,731. Fluid-friction brakes. WARREN, R., Gorran Haven, Godfrey Avenue, Whitton, Middlesex, and PULSOMETER ENGINEERING CO., Ltd., Nine Elms Ironworks, Reading. Aug. 21, 1931, No. 23583. [Class 103 (i).] In a rotary radialcylinder pump, also applicable as a motor, variable-speed powertransmitter, or brake, and of the type in which plungers D are operated by a pin C<2> eccentric to the body R, the plungers are rigidly connected to one another and the cylinders E, E<1>, E<2> are transversely movable in recesses in the body R. The body R is bolted between a flange on the driving shaft and an end plate, which are provided with flats forming guides for the movable cylinders. The plungers may be rotatable on the pin C<2>, or secured thereto. In the latter case the pin C2 forms the driving shaft. Specifications 189,784, [Class 102 (i), Pumps &c.], and 357,979 are referred to.
Patent GB-992187-A (GB)
Title: Aerosol dispensers and actuator cap construction therefor
IPC: B65D83/16
Filed: 1963-06-13
Abstract: 992,187. Dispensing liquids by gaseous pressure. VALVE CORPORATION OF AMERICA. June 13, 1963 [Nov. 21, 1962], No. 23595/63. Heading F1R. In an actuator cap construction for an aerosol container, a fixed cap 10 has a concave groove or finger rest 70, part of which is formed by the concave upper surface 42 of a round or other shaped button 12 set within the cap 10 so as to be guarded thereby against accidental actuation. The button 12 is inserted into the cap 10 from the top thereof and is located on a stem 14 of a metering valve 16 communicating with an orifice 30 in a lateral extension 34 of the button 12. The extension 34 is positioned opposite the groove 70 in a slot 60 in the cap 10 so that, when correctly held, the container is orientated to discharge away from the user. Further, the extension 34 provides a visual indication of the discharge direction. The cap 10 and button 12 may be moulded of plastics, such as polyethylene.
Patent GB-879421-A (GB)
Title: Type-wheel assembly for a high speed printer
IPC: B41J1/32
Filed: 1959-07-09
Abstract: 879,421. Typewriters &c. SHEPARD, F. H. July 9, 1959, No. 23632/59. Class 100(4) In a high-speed printer in which an assembly of type wheels 9 on an arbor 8 is constantly rotated and impression is effected by hammers 11, the type wheels are mounted so that the clamping pressure does not tend to cause distortion. The type wheels 9 are secured on the arber by keys 26, 27 and are clamped together by nuts 20 on the threaded end parts 21. Interposed between one nut 20 and the end type wheel 9 is an adaptor plate 29 and a thrust sleeve 31 having interengaging, spherical or conical surfaces 33, 34. The plate 29 has a large central hole so that it is loose on the arbor and due to the surfaces 33, 34 can tilt so that the clamping pressure on the type wheels 9 remains so that there is no tendency for them to bow or distort due to any uneveness in their thickness. The distance of the hammers 11 from the types 22 thus remains constant.
Patent GB-1163590-A (GB)
Title: Improvements in or relating to items of stationery
Inventor: HANSFORD HOWARD BERNARD
IPC: B42D1/00
Filed: 1968-05-17
Abstract: 1,163,590. Mercantile forms. WILLIAM POLLARD & CO. Ltd. 17 May, 1968, No. 23659/68. Addition to 1,163,589. Heading B6A. The set of mercantile forms as described in the parent Specification 1,163,589 is modified in that the apertures 7 in the lowermost sheet 6 are of the same size as the apertures in the overlying sheets 2 to 5 and the apertures 7 in the sheet 6 are cut by slits 9 to facilitate withdrawal of the sheet 6 from the filing claws without opening the latter.
Patent GB-494714-A (GB)
Title: Improvements in and relating to vibratory systems
IPC: B06B3/00
Filed: 1937-04-23
Abstract: 494,714. Vibratory mechanism. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES., and TRIGGS, W. W. April 23, 1937, No. 23698/38. Divided out of and addition to 494,311 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 25, 1937. [Class 80 (iv)j In devices according to the parent Specification in which retaining means of a rotating mass only yields under centrifugal force when a critical speed is reached or exceeded, the retaining means includes an air cushion. In the crushing machine shown, a mass d is pressed towards the axis g by springs e which are placed initially under tension, which tension and the resistance of an air cushion f having an orifice k must be overcome by the centrifugal force before the mass can move outwards to create vibrations of the desired magnitude.
Patent GB-1305634-A (GB)
IPC: G03F1/56
Filed: 1970-05-15
Abstract: 1305634 Image reproduction KEUFFEL & ESSER CO 15 May 1970 [19 May 1969] 23699/70 Headings G2C and G2M [Also in Division B6] An image reproduction material comprises (1) a film support, (2) a peelable, alcoholinsoluble synthetic polyamide layer which is opaque to visible and/or active light, and (3) a continuous or patterned resist layer superposed directly on layer (2). The resist layer may comprise a photo-resist (e.g. containing naphthoquinone diazide, bichromate, or silver halide), a scribing layer, or a tape or stencil overlay (e.g. of vinyl tape or screen-deposited vinyl ink). The examples describe a material comprising a polyethylene terephthalate film coated with (a) a  layer of copoly (hexamethylene diammonium adipate/hexamethylene diammonium sebacate/  caprolactam) or N-methoxymethyl polyhexamethylene diammonium adipate containing 2,4- dihydroxybenzophenone, 1,2,6-hexametriol and yellow and red dyes and then (b) a layer of 5-[naphthoquinone-(1,2)-diazide (2)-sulphonyloxy- 4]-2-hydroxy-benzophenone and dimerised rosin; the material is exposed, developed with aqueous Na 2 CO 3  and etched with aqueous chloral or bromal hydrate or with Na salicylate/benzyl alcohol/octylphenoxy polyethoxy ethanol to form a diazo copying master.
Patent GB-1456523-A (GB)
Title: Roller painting device
IPC: B05C17/035
Filed: 1973-05-18
Abstract: 1456523 Coating apparatus BLYWORTH Ltd 8 May 1974 [18 Mav 19731 23911/73 Heading B2L  A roller paint applicator comprises a reservoir 1 with two sets of mounting means (17) and (18) (Figs. 1, 3 not shown) providing alternative positions of an applicator roller 2 in which it projects from either the front wall 4 or from the top of the reservoir and a freely rotatable transfer roller 3 within the reservoir mounted on means 21 by which it may be intermittently moved into and out of contact with the roller 2 in both its positions. The means (17), 18 are recesses .in the resilient sides of the reservoir engaged by the roller spindle 14, the sides being held in position by the ends 38 of a removable bridging member 33 which is fitted between pairs of ribs 29, 30 or 31, 32 in dependance upon the position of the roller 2. A brush 36 may be mounted in slots 34 of the member 33 when wetting a ceiling. The transfer roller is mounted in a yoke 21 pivotalble by a string 27 attached to a lever 22. The applicator roller may be surfaced with simulated lamb's wool or polyurethane foam and the transfer roller may comprise a wire gauze or expanded metal openwork transfer surface.
Patent GB-671990-A (GB)
Title: Improvements in and relating to abrading machines
IPC: B24B21/14
Filed: 1950-09-29
Abstract: 671,990. Cooling abrading belts. WAGHORN, H. W. (Hall, E. W.). Sept. 29,1950, No. 23946/50. Class 60. [Also in Groups VIII, XXIV and XXVI] A wheel for supporting an abrading belt is provided with an internal arrangement of passages whereby air is supplied to the inner surface of the belt to cool it. A wheel, Fig. 2, comprises two sets of discs, the discs of one set alternating with the discs of the other set. One set comprises discs 12 of semi-soft material, e.g. rubber, each having a number of axiallydirected holes 14 therethrough. The holes are connected by annular grooves 16 on one or both sides of the disc, these grooves communicating with radial passages 18 occupying the entire thickness of the disc and extending to the periphery of the disc. The other set comprises discs 20 of semi-soft material, e.g. rubber, each having axial holes 22 therethrough communicating, but not necessarily registering, with the holes 14. The assembly of discs is held between metal end plates 24 provided with holes 26 communicating with the holes 22, 14. Air is drawn, by rotation of the wheel, through the axial holes 26, 22, 14, passes through the annular grooves 16 and is delivered centrifugally through the radial passages 18 to the periphery of the wheel and to the inner surface of the belt thus cooling them. The discs are mounted on a bushing 28 and the end plates 24 clamped by nuts threaded on a spindle passing through the bushing 28. In a modification, Fig. 4, the discs 34 are all alike; each disc is of rubber and on each face there are ribs 36 alternating with grooves 38, those on one face being perpendicular to those on the other face. The disc has axial holes 40 and annular grooves 42.