baber/WOPTO huggingface dataset:
Patent GB-1387433-A (GB)
Title: Means for the extensible mounting of table tops in cabinets  cupboards or the like
Inventor: KOPP W
IPC: A47B46/00
Filed: 1972-03-23
Abstract: 1387433 Extensible table tops ROBERT KRAUSE KG 23 March 1972 [25 March 1971] 13573/72 Heading A4H A cabinet 1 has an extensible table top 3 consisting of three panel sections 7, 8, 9 hinged one behind the other at 21, the table top being supported in its extended position by a pair of cantilever brackets 11 extensible with the top, each bracket 11 comprising telescopically slidable tubes, the rearmost tube 12 being secured to the cabinet, the foremost tube 14 being secured to the front panel 7, and the intermediate tube or tubes 13 being freely slidable. The sections 7-9 have rollers 26-28 that run on horizontal portions 23 of fixed curved guides 22 during retracting, the rollers on the rear panel sections 9, 8 lifting off the guides at the angle 25 so that in the closed position Fig. 3 (not shown), the sections 7, 8 hang vertically. During retracting, to prevent tubes 13 from moving rearwardly beyond tubes 12 before panel sections 8, 9 hang vertically, stops 32 are provided on tubes 12. As tube 13 is moved rearwardly a projecting leg (35) Fig. 5 (not shown), of the stop 32 is received in a slot (43) at the rear end of tube 13 and prevents further rearward movement of tube 13. On further retraction, tube 14 only moves rearwardly and its rear end (47) depresses a lug 45 of stop 32, against a spring bias (42), and releases the stop, so that on further retraction, tube 13 can be moved rearwardly beyond the rear end of tube 12 Figs. 3, 7 (not shown).
Patent GB-1016925-A (GB)
Title: Improvements in or relating to recording devices for magnetically recording video-signals on tape
IPC: G11B15/61
Filed: 1963-04-05
Abstract: 1,016,925. Feeding magnetic tapes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 5, 1963 [April 9, 1962], No. 13665/63. Heading G5R. Video-tape wear in a helical-scan recorder is reduced by providing a tape air-bearing by means of longitudinal grooves 14 in the guidedrums 1, 2 under the tape-run. The head-disc 4 is bladed at 15 and air sucked in through filters 12 is forced out of the inter-drum gap 3 with which the grooves 14 communicate. The outer ends of the grooves 14 are terminated just inside the helical lines of the tape edges, Fig. 2.
Patent GB-1382086-A (GB)
Title: Blades of fans
IPC: F04D29/32
Filed: 1972-03-23
Abstract: 1382086 Axial flow fans SVENSKA FLAKTFABRIKEN AB 23 March 1972 [30 March 1971] 13682/72 Heading F1C An arrangement for pivotally adjusting the blades 2 of an axial flow impeller 1 comprises a fluid tight box rotating with the impeller and inflatable through a fluid connection 6, 7 to axially displace arms 12 and rotate the blades about radial axes, the blades 2 being mounted on bearing housings in which axial bearings 15 are disposed to secure the blades to axles 2a which are secured in the impeller hub 3a at their opposite ends 2b. The arms 12 are secured to the circumference of covers 13a. Spring 8 effects return when the pressure in box 5 is reduced and extensible pin 9 controls motion during displacement. Impellers of different sizes may be constructed simply by changing the size of the blade axles 2a and casings 11.
Patent GB-593400-A (GB)
Title: Improvements in printing machines
IPC: B41L19/00
Filed: 1945-08-21
Abstract: 593,400. Printing - machines. NEWTON, E.P. (Addressograph-Multigraph Corporation). Aug. 21, 1945, No. 13708/47. Divided out of 593,397. [Class 100 (ii)] A rotary printing-machine comprising a power-driven printing drum 21 having means for securing a printing-surface 20 thereto is constructed with two control devices one of which when operated causes continuous revolution of the drum and co-acting parts, and the other causes the drum to rotate for part of a revolution only, and is especially applicable for stopping the drum in two positions which enable a new plate 20 to be secured in position readily. The invention is described in connection with a machine as set out in Specification 593,397, in which the printed impression is transferred to an offset cylinder 23 from which it is delivered by strippers and a roller 27 co-operating with an impression roller 25 as described in Specification 593,401. The printing-plate 20 is attached to the drum 21 by means of apertures 53 at one end which are passed over forks 52 in a recess in the drum, and the other end of the plate 20 is secured by slotted openings 54 to forks 55 on . a pivoted tensioning member 56, and is retained in position by a spring-pressed comb 60 the tines of which bear on the ends of the plate 20. To enable the plates to be secured readily to the drum, the means for imparting partial rotation to the drum stops the drum in the position shown in Fig. 3, and again in a position after a half revolution of the drum. The rotation of the printing-machine is effected by a combined clutch and brake mechanism as in Specification 593,397 and the bell-crank 216 which operates the clutch C is thrown in by depression of a pedal 230, Fig. 1, not shown, connected by lever-and-link mechanism comprising link 227 and lever 228, Fig. 5, to the bell-crank 216. The clutch C continues to operate as long as its pedal is depressed and when the pedal is released the clutch is thrown out and the brake B applied only when a latch 240, Fig. 5, is operated by a cam 243 on the shaft 90 of the offset cylinder to release the arm 234 of the clutch lever 216 which it normally engages when the clutch is operating. The machine is thus always brought to rest in the position shown in Fig. 3 or in a position diametrically opposite to it. The mechanism for rotating the machine for one half rotation of the drum 21 comprises a pedal 231, Fig. 1, not shown, which by lever-and-link mechanism oscillates a plate 248, Fig. 5, pivoted to a stud 249 and a pawl on plate 248 rotates a ratchet wheel which carries a star wheel 251 with which engages a roller 255 on a lever 232 connected to the clutch lever arm 234. The lever is depressed temporarily by the roller 255 which returns to its inoperative position after operation by the star wheel to throw in. the clutch. The clutch is thrown out automatically after half a revolution of the drum 21 by means of the cam 243 which releases the latch mechanism.
Patent GB-789116-A (GB)
Title: Improvements in or relating to polyethylene composition and process of cross-linking
IPC: G21C3/60
Filed: 1956-05-03
Abstract: Di(aralkyl)peroxides of the formula <FORM:0789116/IV (b)/1> where R1 and R6 are aryl or alkaryl groups and R2, R3, R4 and R5 are hydrogen or alkyl groups of less than 4 carbon atoms, may be prepared by condensing the corresponding hydroperoxides and alcohols (preferably in slight excess) at 50 DEG  to 120 DEG  C. in the presence of an acidic catalyst such as p-toluene sulphonic acid.ALSO:Polymers of ethylene are cross-linked by incorporating a minor amount of a di-(aralkyl) peroxide of the formula <FORM:0789116/IV (a)/1> where R1 and R6 are aryl or alkaryl groups and R2, R3, R4 and R5 are hydrogen or alkyl groups of less than 4 carbon atoms, e.g. bis-(a ,a -dimethyl benzyl), bis-(a ,a -dimethyl-p-isopropylbenzyl) and bis-(a ,a -dimethyl-p-methylbenzyl) peroxides, and heating.  A list of di-(aralkyl) peroxides is given.  Incorporation may be effected by milling the polymer granules on rolls at 100 DEG  to 125 DEG  C. and adding the peroxide to the fused polymer in proportions between 0.1 and 10 per cent.  Heat and light stabilizers, fillers, lubricants, pigments, dyes, anti-static agents, resins and elastomers may be added.  Heating may be carried out at from 130 DEG  to 180 DEG  F., preferably simultaneously with shaping, e.g. by compression or injection moulding, to yield products insoluble in hot xylene and with reduced flow.
Patent GB-550820-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H01J61/073
Filed: 1941-10-25
Abstract: 550,820. Metal-vapour lamps. BRITISH THOMSON-HOUSTON CO., Ltd., BOURNE, H. K., and FOWLER, I. L. Oct. 25, 1941, No. 13737. [Class 39 (i)] In high-pressure mercury vapour lamps operated with their longitudinal axis vertical, the seal for the electrode lead that is uppermost is protected from undue heating by the rising convection air currents, by the provision of radial fins 4 in thermal contact with the seal, and a conical baffle 3 with its apex downwardly directed. Preferably the baffle is secured by welding to the lower ends of the fins and these are in turn attached to the sleeve 5 forming part of a terminal structure as described in Specification 541,952.
Patent GB-697547-A (GB)
Title: Improvements in pencil and the like sharpening devices
IPC: B43L23/06
Filed: 1951-06-11
Abstract: 697,547. Pencil-sharpeners. KUNZI, W. WOLFF-. June 11, 1951. [June 15, 1950] No. 13759/51. Class 146 (iii). A device for sharpening pencils, chalks &c. comprises a razor blade 7 resiliently set in curved condition in a holder so that its edge extends along a curve, and a guide channel 9, 10 so related to the edge of the blade that the pencil &c., repeatedly moved longitudinally in the channel is thereby sharpened. The holder made of wood, light metal or moulded plastic comprises a cylindrical container 1, hollowed at 3 and formed with an annular groove 4 to locate the razor blade 7, and a plug type cover 2 formed with a guide portion 5, an annular groove 8 to accommodate the upper edge of the blade 7, and a bore 11 to permit sharpenings to pass into the container 1. The guide channel 9, 10 may be perpendicular or at an oblique angle to the edge of the blade. The construction enables the blade to be moved so that after one portion is worn a new portion can be positioned to effect cutting. A number of channels 9, 10 of differing widths may be provided for use according to the diameter of the pencil to be sharpened.
Patent GB-1494627-A (GB)
Title: Recovery of a commodity from a sachet or bag containing the commodity
IPC: B65B69/00
Filed: 1975-04-01
Abstract: 1494627 Cutting apparatus TINGEY & CO (ENGS) Ltd 1 April 1975 [28 March 1974] 13768/74 Heading B4B [Also in Division B8] Apparatus for use in the recovery of a commodity from faulty bags containing the commodity, e.g. faulty tea bags, comprises a conveyer 2, a cutting station and gripping means 18, 19 which co-operate wth the conveyer to feed faulty bags into and through the cutting station, the cutting means including opposed slitting wheels 13, 15 whose cutting peripheries overlap and serve to shear bags fed therebetween. The conveyer includes a number of separate strands 2 between which are located pairs of co-operating disc cutters 13, 15. The clamping means include rollers 18 each rotatably mounted on arms 19 pivotally mounted on a spacer 16 secured to the upper cutter shaft 6. The individual bags are clamped between the rollers and conveyer strand to thereby feed the bag past the cutters.
Patent GB-981349-A (GB)
Title: Chromium-containing azo-dyestuffs and process for their manufacture
IPC: C09B45/16
Filed: 1963-04-08
Abstract: The invention comprises metallized azo dyes wherein one atomic proportion of chromium is linked to two molecular proportions of different monoazo dyes of which one is of formula <FORM:0981349/C4-C5/1> and the other is of formula <FORM:0981349/C4-C5/2> which dye is free from carboxyl groups not in ortho-position to the azo group and is free from sulphonic acid groups and wherein D is an ortho-phenylene residue, A is a coupling component linked in vicinal position to an enolized or enolizable keto group and n is 1 or 2.  The dyes are prepared by reacting a 1:1-chromium complex of the dye of formula (1) with an equimolar proportion of dye (2).  The dyes may be used to colour nitrogenous materials such as synthetic polyamide, polyurethane or polyacrylonitrile fibres, silk, leather and especially wool in brown to olive shades.  The preparation of the mixed complexes is described in examples.
Patent GB-751416-A (GB)
Title: Improvements in or relating to cutting machines
IPC: B26D1/24
Filed: 1954-05-13
Abstract: 751,416. Operating clutches. S.A.F.F.A. SOC. ANON. FABRICHE FIAMMIFERI ED AFFINI. May 13, 1954 '[June 5, 1953], No. 14072/54. Class 80(2) [Also in Group VIII] A clutch between a sleeve 29 and the drive shaft 23 on which it is rotatably mounted in mechanism for feeding the work table of a paper-cutting machine (see Group VIII) comprises a pin 54 which, when released from its latching engagement with a spring-loaded pin 51<SP>1</SP> carried by a foot lever 21, is urged by a spring 53 into engagement with an opening 55 is a disc 56 carried by the shaft. The lever 21 is normally urged by springs 45, 45<SP>1</SP> to its. upper position where a cam formation 22 on the upper end of the pin 51<SP>1</SP> engages behind a roller 52 on the pin 54 and so latches it in disengaged position. When depressed to permit engagement of the clutch, the lever 21 is retained in the lower position by a roller 49 on the lever engaging the flanged rim of a cam 57 on a shaft 33 driven from the sleeve 29 by chain- and-sprocket gearing 31; after one revolu-. tion a gap in the cam 57 releases the roller so that the lever 21 is moved upwardly by the springs 45, 45<SP>1</SP>, and the cam formation 22 on the pin 51<SP>1</SP> withdraws the pin 54 to stop the drive.
Patent GB-316362-A (GB)
Title: Improvements in the manufacture of wire wheels for vehicles
IPC: B60B1/02
Filed: 1928-05-14
Abstract: 316,362. Owen, A. E., and Downs, It. W. May 14, 1928. Hubs. - A hub for a wirespoked wheel comprises a barrel-portion a on 'the inner end of which a cupped spokeflange d is pressed and welded, the end of the barrel being swaged over at h. The flange may be positioned by means of a rib g on the barrel. A closurecap c is fitted in the flanged outer end of the hub.
Patent GB-381129-A (GB)
Title: Fastenings for roller shutters
IPC: E06B9/80
Filed: 1932-05-18
Abstract: 381,129. Fastenings. WHITTING, W. J., 1, Grosvenor Road, East Ham, London. May 18, 1932, No. 14133. [Class 44.] In a fastening for a pair of roller shutters, a tongue A on a plate B is passed through the shutter stile J and a plate C and carries a padlock G. Squareshouldered bolts D riveted to the plate C pass through the roller shutters K and the plate B.
Patent GB-710948-A (GB)
Title: Improvements in and relating to the separation of impurities from coal or other minerals
IPC: B03B9/00
Filed: 1951-06-14
Abstract: 710,948. Washing granular material. COPPEE CO. (GREAT BRITAIN), Ltd., and SANSAM, W. June 12, 1952 [June 14, 1951], No. 14157/51. Class 82 (2)  Impurities are separated from coal, ore or other minerals by mixing mineral particles of large size (1-8 inches) delivered from a high density (specific gravity not less than 1-4) separating bath 1 with mineral particles of relatively small size (less than 1 inch) entertained with an excess amount of waiter .(4-5 times their own weight) and flowing in a launder 3 or other channel or conduit from a low density (specific gravity not exceeding 1.1) baum washer 4 or other separating bath, the mineral particles in said launder being subsequently caused to flow over a series of dewatering and classifying screens 5, 6. Water and tailings from the latter flow into a slurry basin 7, the relatively clean water flowing over a weir 8 into a basin 9 from whence it is re-circulated by a pump 10 to the washer 4, the thickened liquid being delivered by a pump 11 to a slurry treatment plant.
Patent GB-716602-A (GB)
Title: Improvements relating to voltage stabilisation for power supply circuits
Inventor: PRATT ALAN HERBERT
IPC: H02M3/33
Filed: 1950-06-07
Abstract: 716,602. Automatic voltage control systems; converting. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 4, 1951 [June 7, 1950], No. 14164/50. Classes 38(2) and 38(4) In an automatically controlled E.H.T. supply arrangement, of the type in which the output of an oscillator is rectified by a voltage multiplying rectifier/condenser circuit, the voltage across one condenser of the multiplier is used as the measure of the output voltage. The output voltage of a voltage tripling rectifier arrangement 12, 13, 14, supplied from an oscillator 1, is controlled by tapping a portion of a voltage proportional to the output from a potentiometer 19 connected across the first condenser 15 comparing it in the grid cathode circuit of a valve 21 with a reference voltage derived from a gas discharge tube 23, and controlling a valve 27 to correctively control the screen voltage of the oscillator 1. A voltage component proportional to the load current is derived from the drop across a resistor 10 in series with the load, and this is deducted from the control voltage to compensate for voltage fluctuations due to load current changes. In a modification, the reference voltage and the control voltage are applied respectively to the control electrode of a cathode coupled pair of valves, the difference voltage being obtained from the anode of which ever valve gives the correct polarity for application to valve 27.
Patent GB-852210-A (GB)
Title: Apparatus for unloading materials from containers
IPC: B65G65/46
Filed: 1958-05-02
Abstract: 852,210. Screw conveyers on vehicles for unloading. HANSEN, E. K. May 2, 1958, No. 14167/58. Classes 78 (1) and 78 (4). A screw 67 (Fig. 1) delivering material from a container 11 such as a vehicle body is fed by an impeller 42 (Fig. 2) mounted in a housing 26 (Fig. 1) with its axis at right angles to that of the screw. In the construction illustrated the impeller 42 is fed by a screw 24 within the body of the vehicle and the shaft 59 of the screw 67 is driven through bevel gearing 57, 56 from the shaft 38 of the impeller 42 which is driven in turn through a universal coupling 51 (Fig. 1) from a towing tractor. The impeller 42 is preferably formed by plates 52 (Fig. 3) welded to a square shaft 41 while the blades of each of the screws preferably have the cam contour indicated at 66.
Patent GB-197834-A (GB)
Title: Improvements in rotary tooth brushes
IPC: A61C17/24
Filed: 1922-05-19
Abstract: 197,834. Cruikshank, J. R. May 19, 1922. Hand-supported power-driven brushes; rotary brushes; brush sheaths and cases. - A rotary toothbrush comprises a member 1 having therein a socket to receive detachably the end of a stem 13 carrying brushing material 14, the member being rotatably mounted in a sleeve 2 extended forwardly to form a guard partly surrounding the bristles. The brush is rotated in either direction by means of a double archimedean screw 4, connected to the member 1 and engaging nuts 6, 7, slidably mounted within a handle 5. Either nut may be prevented from relative rotation with respect to the handle by a member 8 slidable in a slot 9 in the handle 5 and adapted to move a projection into or out of engagement with a notch in each of the nuts. One end of the screw 4 is attached to a washer 11, between which and the inner end of the handle 5 is placed a spring 12 adapted to return the handle to normal position after it has been pushed inwardly to rotate the brush. The brushing material 14 may comprise radial bristles of the form shown. In another form a series of circular brushes are arranged side by side on the brush stem. If desired, a brush of ordinary form may be used, in which case the screw 4 is locked to the handle 5 by pressing the handle inwardly and rotating partly a ring 21 thereon to depress a pin into engagement with an annular groove 22 formed on the screw. The brush when not in use is covered by a cap provided with a clip for attachment to a vest pocket.
Patent GB-578826-A (GB)
Title: Improvements in or relating to portable chain saws
IPC: B27B17/02
Filed: 1944-07-26
Abstract: 578,826. Sawing-machines. ARMSTRONG, J. W. C.. PALFI, J., and DANIELS, Ltd., T. H. & J. July 26, 1944, No. 14268. [Class 145 (ii)] The guide bar 1 of a horizontal chain saw comprises a pair of thin metal plates 6 secured to an intermediate plate 7 of a plastic material such as resin-impregnated fabric or resin-impregnated paper sheets. Thin steel bearing strips 9 are secured to the edges of the plate 7 by engaging their inturned ends 10 in. slots 11 in the plate. The outer chain guide may be a roller or sprocket 5 or a disc of plastic material secured between the plates 6 and having a strip of hard steel secured on its periphery. Specifications 568,988, 578,824 and 578,825 are referred to.
Patent GB-142685-A (GB)
Abstract: 142,685. Hollingdrake, H. May 31, 1919. Recording rest or motion.-In-motion recorders for road vehicles of the kind described in Specification 108,409 are provided with means whereby the recording-point is moved on the record disk or drum at the end of a period to produce a number of concentric records or, alternatively, a spiral record extending over several days. The shafts g, f bearing the pivoted weight and toothed sectors operating the recording- point are carried in a casing b sliding by guides b<1>, b<2> and ball bearings c on horizontal rods d, being moved along these by a screw j to which a continuous or intermittent rotation is imparted by the clock-work driving the record-disk r. In the apparatus shown in Figs. 1 and 2, intermittent rotation is afforded by a star-wheel o<4> connected by gearing to the screw j, which is engaged once per rotation of the disk r by a pin p carried thereby. Connexion between the worm j and the guide b<2> is effected by a half-nut l held in engagement by a cam m and lever n which is rocked to cause disengagement when it is required to return the casing b to the starting position.
Patent GB-1431673-A (GB)
Title: Hinge means
IPC: E05D11/06
Filed: 1973-03-23
Abstract: 1431673 Hinges W SEEGER and F LAMPARTH 23 March 1973 14269/73 Heading E2F  In a hinge means for a closure member (e.g. a door not shown) a first hinge member 3 supports a hinge pin 11, a second hinge member 2 is journalled on the hinge pin 11 and a stop ring 2 is mounted on the hinge pin between the first and second hinge members, the stop ring being adjustably movable around the hinge pin into a plurality of positions in which the stop ring 2 is secured against free rotation as by projections 27 engaging in grooves 26 formed in the periphery of the lower hinge member 3. Axiallyengaging stops 12 and 13 are formed on the stop ring 2 and first hinge member respectively and provide abutment surfaces during opening movement of the closure member to prevent further unresisted opening movement of the closure member. As shown, and where the ring 2 has adjustable grub screw connection with a hinge pin integral with the member 3 (Fig. 3, not shown), further opening movement is completely prevented. In Fig. 4 (not shown) a hinge pin to which the ring 2 is adjustably secured has a spring connection with the member 3 allowing further resisted opening movement. When the stops 12, 13 abut they axially enter recesses in the members 1, 3 shaped so that door closing is resisted.
Patent GB-229918-A (GB)
Title: Improvements in semi-rotary propellers
IPC: B63H1/12
Filed: 1923-12-01
Abstract: 229,918. Blicharski, F. X. Dec. 1, 1923. Vibrating plates or fins.-A vibrating-propeller comprises two blades at right angles to the axes of oscillation and capable of feathering on their own axes under spring restraint. The oscillating shaft 40 has a boss 17 from which project arms 18 on which the hollow roots of the blades 16<1>, 16", Figs. 2 and 3, are mounted. The blades have a limited feathering motion under restraint of the springs 27, 28 and are held in their extreme angular position by a block 19 which engages flats in a slot 20 in the arms 18. The blades are provided with recesses 25. The propeller shaft 40 carries a doubled armed lever 32, Fig. 5, which engages and is oscillated by a star-shaped cam 39 on the rotary shaft 1.