baber/WOPTO huggingface dataset:
Patent GB-394165-A (GB)
Title: Improvements in and relating to thermionic tubes
Filed: 1932-08-19
Abstract: 394,165. Thermionic valves. ROGERS RADIO TUBES, Ltd., 100, Sterling Road, Toronto, Canada. Aug. 19, 1932, No. 23356. Convention date, March 15. [Class 39 (i).] The cathode cylinder 9 has a part of its surface covered with electron-emissive material surrounding an insulator 12 and heater 10; the remainder of the cylinder extends upwardly and screens the wire 6 leading from terminal 5 to the control grid. The lead-in is surrounded by insulation 8 and a glass bead 7 is sealed on to it to prevent contact where it emerges from the cylinder. The anode 21 has a slot 25 bridged by a hairpin wire 24 so that the high frequency field used in heating the electrodes to free them from gas during manufacture may quickly penetrate to the inner electrodes. The outer surface of the valve may be zincsprayed and connected to the cathode or a screen may closely surround the anode. The control grid is wound on posts 18, 19 and the screen grid on posts 16, 17 which carry a metal ferrule 28. Mica washers 15, 29, the latter resting on ferrule 28, position and space the cathode, control grid and screen grid, and the whole structure is supported on posts 13, 14 to which the ferrule 29 is welded.
Patent GB-429416-A (GB)
Title: Improvements relating to excavators
IPC: E02F3/30
Filed: 1934-08-14
Abstract: 429,416. Excavators. EVANS, O., 27, Chancery Lane, London.-(Insley Manufacturing Co. ; Indianapolis, Indiana, U.S.A.) Aug. 14, 1934, No. 23393. [Class 68 (i)] In an excavator, a chain 7 is arranged to drive the pinions which co-operate with racks 3 on the dipper stick to thrust out and withdraw the latter, the chain passing over a sprocket 8 carried by the boom A and being connected at 10 to the dipper hoisting cable 11 and to a retracting cable 17 so as to be driven thereby. The dipper stick is formed of two tubular members, one on each side of the boom.
Patent GB-988620-A (GB)
Title: Pigmented and/or decorative plastics and other polymeric products
IPC: C08F265/04
Filed: 1961-06-28
Abstract: Polymeric products are made by subjecting to polymerization a gel resulting from the interaction of isotactic and syndiotactic polymethyl methacrylates, and which contains at least one addition polymerizable compound, e.g. esters, amides and nitriles of acrylic and methacrylic acids, and styrene and its derivatives, and mixtures thereof.  Also present during polymerization may be pigments, e.g. barytes, calcium sulphoselenide, carbon black, titanium dioxide, phthalo cyanine green, and lead arsenate dyestuffs, polymerization catalysts, e.g. lauroyl, acetyl and benzoyl peroxides, tert.-butyl hydroperoxide, azodiisobutyronitrile, mixtures of tert.-butyl hydroperoxide with acetyl and benzoyl peroxides, and a mixture of lauroyl peroxide and tert.-butyl perbenzoate, plasticizers, e.g. butyl lactate, methyl salicylate, and dimethyl, dibutyl and dioctyl phthalates, release agents, e.g. stearic and oleic acids, other polymers, e.g. atactic polymethyl methacrylate, cellulose acetate-butyrate and nitrocellulose, and mercapto compounds, e.g. 2-mercaptoethanol. The examples describe the use of the following monomers in processes of the above type:  (1) ethyl acrylate and methyl methacrylate, (2) methyl methacrylate, (7) methyl methacrylate and ethylene dimethacrylate or allyldiglycolyl allyl glycolate, and (10 styrene and alpha-methylstyrene.  The preparation of isotactic polymethyl methacrylate is described, by adding methyl methacrylate to an ether solution of secbutylmagnesium bromide or isopropylmagnesium bromide.
Patent GB-855054-A (GB)
Title: Improvements in or relating to a mould for shaping ceramic material
IPC: B28B7/34
Filed: 1959-07-08
Abstract: A mould having sufficient porosity to extract water from ceramic materials such as porcelain moulded therein is formed from a mixture comprising 60 to 64% by volume of Al2O3 and 33 to 29% by volume of SiO2 in the form of clay, and 7% by volume of MgO, present as a flux; the mixture being fired at about 1450 DEG C.
Patent GB-352287-A (GB)
Title: Improvements in aircraft wings and the like
IPC: B64C3/00
Filed: 1930-08-06
Abstract: 352,287. Aircraft wings. BOULTON & PAUL, Ltd., Riverside Works, and NORTH, J. D., Hill House, Eaton Hill, both in Norwich. Aug. 6, 1930, No. 23488. [Class 4.] To prevent relative vertical movements of the two spars of a wing beyond the outermost bracing strut, the top and bottom portions of the relatively deep front spar immediately outside the strut are connected by convergent members E<1>, E<2> to a point on the rear spar near its outer end. The resulting torque of the front spar is resisted by a strong rib or by a second pair of convergent members J<1>, J<2> connected to a point on the rear spar directly behind the connection to the front spar. The members E<1>, E<2>, J<1>, J<2> may converge to single points as shown or they may be spaced apart where they meet the rear spar.
Patent GB-762669-A (GB)
Title: Improvements in the manufacture of cement and cementitious substances
Inventor: FOULGER FRANK
IPC: C04B24/36
Filed: 1953-08-26
Abstract: Cement is made water repellant by adding 0,5 to 1 per cent of a long chain organic compound having at least 8 carbon atoms and a water-repelling group at one end and a water attracting group at the other end of the chain to cement clinker and grinding in a mill. Specified compounds are Tall oil and a gum extract from the refining of petroleum lubricating oils.  Soil can be stabilized with the modified cement.  Specification 712,419 is referred to.
Patent GB-295656-A (GB)
Title: Process for the manufacture of difficultly soluble salts of organic bases and alkaloids
IPC: C07D215/40
Filed: 1928-08-15
Abstract: 295,656. I. G. Farbenindustrie Akt.- Ges. Aug. 16, 1927, [Convention date]. Samples furnished. Salts of organic bases, including alkaloids.- Salts of alkaloids and of basic compounds obtainable according to Specifications 267,169, 274.058 and 286,087 are prepared by combining the base with a methylene compound of an aromatic carboxylic or sulphonic acid or by double decomposition in a solvent such as water of a salt of the base with a salt of the acid. The acid may contain hydroxy, amino, alkylamino or dialkylamino groups in the aromatic nuclei. The products, being tasteless, stable in the air, sparingly soluble in water, and readily decomposed by acids and alkalies into their components, are adapted for therapeutic use. Examples are given of salt formation between (1) 1-(N-methyl-diethylaminoethyl)-amino.-4-aminobenzene and methylene-disalicylic acid, and (2) methylene-di-#-hydroxynaphthoic acid and the following compounds:- N - ethyl - diethylaminoethylaniline, 1 : 2 - dimethoxy - 4-(N-di-diethylaminoethyl) - aminobenzene, 6 - methoxy-N-diethylaminoethyl-8-aminoquinoline, 6 - methoxy - N - (a - diethylamino-#- methylbutyl)-8-aminoquinoline. #-dithylamino- #<1> - (6 - methoxy-8-quinolyl)-aminogycol-diethylether, 6-methoxy-8-aminoquinoline, quinone and other cinchona, alkaloids and strychnine. N-Ethyl-diethylaminoethyl-aniline is prepared by interaction of ethylaniline and dietbylaminoethyl chloride.
Patent GB-690440-A (GB)
Title: Improvements in or relating to paper-making machines
IPC: D21F7/02
Filed: 1950-09-28
Abstract: 690,440. Drive of paper-making machine components. MILLSPAUGH, Ltd., and HEYS, R. C. Sept. 18, 1951. [Sept. 28, 1950] No. 23725/50. Addition to 634,961. Drawings to Specification. Class 96. The invention of the parent Specification is modified in that the subsidiary shafts for the suction rolls, calenders and other components of a paper-making machine lie parallel to the axes of the said components, with one member of a simple spur or helical reduction gearing carried by each subsidiary shaft meshing with the other member of the gearing of the component, the corresponding shafts in the driving side of the variable speed transmissions lying transversely to the line shaft, and being driven by simple gearing direct from the line shaft. The common line shaft preferably runs below the machine bed and is sectionalised. Remote control clutches may be incorporated.
Patent GB-647380-A (GB)
Title: Improvements in blind hole fasteners
Inventor: BRISTOW JOHN WINNINGTON
IPC: F16B29/00
Filed: 1948-09-10
Abstract: 647,380. Rivets. GUEST, KEEN & NETTLEFOLDS (MIDLANDS), Ltd. Sept. 10, 1948, No. 23797. [Class 89(i)] [Also in Group VII] A tubular rivet for use where access car only be had to one side, comprises a bush 10 externally flanged at 12 anc tapered at 14 to a neck 15 of reducec thickness and ending in a conical head 16 tapped at 18. The rivet is set by a tool 21 having a screwed extension 22 to en gage the thread 18 and a conical surface 24 leading to a shoulder 23. On continued rotation of the tool the part 14 collapses forming an inner flange 26, the rivet then shears at 15 and the head 16 is drawn into the part 10 completing the formation of the flange and expanding the part 10 into the hole in the plates. Finally the sheared edge of the head 16 is flanged by the surface 24 into the countersink 25.
Patent GB-1278396-A (GB)
Title: Improvements in or relating to sheet-distributing devices
IPC: B41F13/70
Filed: 1971-04-19
Abstract: 1278396 Delivering sheets RICOH KK 19 April 1971 [6 April 1970 20 June 1970 22 July 1970 29 July 1970] 23827/71 Heading B8R A sheet distributing device includes feed rollers 3a to 3v, e.g. co-operating with endless belts 4, drivable in a first direction to feed sheets along a feed path and means for driving a selected roller, e.g. 3s, in an opposite direction to said first direction, whereby said selected roller cooperates with the adjacent upstream roller 3r to feed a sheet 50 to a sheet support 2r. A feed roller may be associated with each support. Sheets may be fed to the device via endless belts 6 and a guide 7, sets of rollers 3a to 3v and the associated shelves 2a to 2u being located in a vertical, or horizontal, Fig. 12 (not shown), array. Each roller set may be driven by a belt (18), Fig. 2 (not shown), driven by pulleys (11), (13) rotatably mounted on a plate (17) which can be moved laterally so that drive rollers (12), (14) on each pulley shaft (15), (16) engage either run of drive belts (20), (21), this effecting selective reversal of a roller set. Alternatively, the shaft (8), Fig. 5 (not shown), of each roller set may have rotatably mounted thereon sprockets (29), (30), a control wheel (31) rotatable with the shaft being slid into engagement with one or other of the sprockets, which are continuously rotated in opposite directions, by a plate (33) when engaged by a roller (39) on a movable member 41. This member may be mounted on a timing chain 44 and have a sheet deflecting arm 48 which senses the passage of a sheet to a shelf and thereafter causes the chain to index member 41 to another position so that a succeeding sheet is deflected to a different shelf. A spring deflector (42), Fig. 7 (not shown), at each shelf entrance may replace this arrangement.
Patent GB-915027-A (GB)
Title: Apparatus for use in transporting grain, animal feed or the like
Inventor: CLAYTON WILLIAM SYDNEY
IPC: B60P1/40
Filed: 1959-07-10
Abstract: 915,027. Screw conveyers on vehicles. HILL Ltd., CHRISTOPHER. Sept. 28, 1960 [July 10, 1959], No. 23851/59. Classes 78 (1) and 78 (4). A screw elevator 17 for loading a transport hopper 13 can be stowed on the hopper. In the form illustrated the elevator is pivoted to a shoe 21 sliding on a rail 22 on the vehicle so that its upper end can deliver to any part of the hopper 13, and so that the conveyer can be turned to the stowed position P shown in broken lines where it is locked by a clamp 31. The screw 19 is driven by an hydraulic motor 27 provided with fluid through lines 28. The hopper 13 may have doors at the sides and rear, and may have sliding gates in its bottom. The elevator may be fed from a hopper of the form described in Specification 915,026, which is referred to.
Patent GB-337462-A (GB)
Title: Improvements in metal panelling or wall construction particularly suitable for railway vehicles
IPC: B61D17/08
Filed: 1929-08-02
Abstract: 337,462. Mead, A. A., and Mead, McLean & Co., Ltd. Aug. 2, 1929. Panels; mouldings. - Vitreously enamelled metal panels 1 attached to framing by hot-riveting, or by screws 11, &c., have their attachment areas 2 covered by vitreously-enamelled moulding strips 5, the inturned edges 6 of which are engaged by a bar 7 held to the framing 9 by screws 8. Holes formed in the strip 5 give access to the screws 8, and are closed by vitreously-enamelled plugs or buttons 13, which have split shanks 14 adapted to grip the heads of the screws. Alternatively, the plugs may have a press-button engagement in the holes. In a modification, the strip 7 is secured to the framing by bolts, which carry washers with spring arms to engage the plugs. In another modification, the plug stem is encircled by a spring which engages in a key-hole slot in the moulding. In another modification, the plug stem has projecting barbs engaging in the hole. Waterproof packing may be interposed between the moulding and the panels and plugs. The panels 1 have their attachment, areas 2 left free of the final coating of vitreous enamel. Specifications 268,436 and 277,159 are referred to.
Patent GB-151158-A (GB)
Title: Improvements in combined washing and wringing machines
IPC: D06F45/00
Filed: 1919-09-30
Abstract: 151,158. Pearson, G. Sept. 30, 1919. Folding wringers. - Relates to combined machines, and consists in pivoting the wringer over the washing-tub, which is fitted with a mechanical agitator, so that it can be turned down into the horizontal when not in use, and the whole converted by means of a wooden cover into a table. A wringer A is mounted on a shaft B carried in ball-nosed brackets D on the frame C of the washing-machine, and is maintained in a vertical position by a surface E bearing on a horizontal surface F, and by locking levers J pivoted on the wringer, engaging with notches H in the brackets. In the turned-down position, the surface E bears against a vertical surface G on the bracket D and the enlarged top-board A<1> bears against the tub frame to diminish the strain upon the bracket D. A draining-board L extending between the drip board M and the washing tub N is hinged at P. The table top comprises a wooden cover R provided with slits S to admit the spindle T of the lower roller.
Patent GB-1319871-A (GB)
Title: Tunneling machines
IPC: E21D9/10
Filed: 1971-04-19
Abstract: 1319871 Tunnelling machine ATLAS COPCO AB 19 April 1971 [19 March 19701 23925/ 71 Heading E1F A tunnelling machine has shoes which may be moved into engagement with a tunnel wall by one or more power jacks acting on a respective first axis transverse to the machine, and a cutter head pivotable about a second axis transverse to the machine and spaced from the or each first axis. As shown, Fig. 1, the machine has a frame 1 having shoes 16, 17, 30, 32, and has a frame 2 having shoes 46, 48, 53, 54, all of the shoes being movable into engagement with the tunnel wall by respective hydraulic jacks. Cutter heads such as 21, each comprising a motor and rotary cutter, are mounted on frame 1 for pivoting about a vertical axes. In use, the shoes of frame 2 are extended to grip the tunnel wall, and frame 1 is slid forwards by hydraulic jacks 3, 4, 5, 6 to cut the walls to a depth 65, Fig. 3. The cutter heads are then pivoted across the machine part to cut material. When jacks 3, 4, 5, 6 are fully extended the shoes of frame 1 are extended to grip the tunnel wall and frame 2, with its shoes retracted, is pulled forwards. The machine may be steered in any direction by the selective extension of the shoes and jacks. The number and arrangement of the cutter heads and shoes may be varied, e.g. frame 1 may be equipped with one, two or three pairs of cutter heads, each pair being pivotable about a separate vertical axis. The cutter heads sweep debris into the tunnel centre where it is collected by conveyor 60.
Patent GB-642926-A (GB)
Title: Improvements in water pistols
IPC: F41B9/00
Filed: 1947-08-29
Abstract: A toy water pistol is made from cellulose derivatives such as cellulose acetate, cellulose acetate butyrate or ethyl cellulose.
Patent GB-1341272-A (GB)
Title: Method which privides compensation for induced  birefringence in a laser rod
IPC: H01S3/093
Filed: 1971-04-19
Abstract: 1341272 Lasers COMMISSARIAT A L' ENERGIE ATOMIQUE 19 April 1971 [17 March 1970] 23935/71 Heading H1C A magnetic field is applied to a laser rod to rotate the polarization of the light within the rod and thereby compensate for thermally induced birefringence. Fig. 5 shows a YAG rod 1 with a helical flashlamp 3 which causes a radial temperature gradient in the rod, which in turn introduces a phase shift between radially and tangentially polarized plane waves. At the centre of the rod is a coil 7 which rotates the polarization by 90 degrees, so that light leaving the rod has no net phase shift. The coil may be placed anywhere along the rod, or over its whole length, and the field adjusted accordingly. The coil should be magnetically isolated from the helical flashlamp; alternatively the lamp itself may produce the magnetic field.
Patent GB-909855-A (GB)
Title: Improvements in or relating to sound reproducing machines
Inventor: RUDLAND RONALD
IPC: G11B19/265
Filed: 1958-07-25
Abstract: 909,855. Change-speed friction gears. FOSTER-MALLARD Ltd. Oct. 26, 1959 [July 25, 1958; June 15, 1959], Nos. 24019/58 and 20451/59. Class 80 (2). A gramophone turntable is driven by an electric motor through friction gearing including two friction wheels engageable with a rim of a turntable, one being effective for forward and the other for reverse drive, and the wheels are disengaged from the rim when the motor is stopped. As shown in Fig. 2, a stepped wheel 22 on the shaft of a reversible electric motor drives friction wheels 28 engageable with the rim 11 of a gramophone turntable, as described with reference to Figs. 1-3 of Specification 878,571. The wheels 28 are carried by arms 27 pivoted to arms 25, 26 slidably mounted on a spindle 24. The arms 25, 26 are biased inwardly by a spring 29 and have pins 32, 33 engaging cam surfaces on a slide bar 34. A second slide bar 36 is connected to the bar 34 and carries the moving contact 37 of an on-off switch 38 controlling the electric motor. A control knob 39, acting through a pivoted bar 41 controls the positions of the slide bars 34, 36 and when switch 38 is " off " the cam surfaces on bar 34 spread the arms 25, 26 apart and the friction wheels 28 are held out of engagement with both the rim 11 and the driving wheels 22. In the closed position of the switch the pins 32, 33 run down the cam surfaces and the wheels 28 engage the driving wheel and the rim 23. In the embodiment of Fig. 4 friction wheels 45, 46 are selectively engageable with a turntable rim 56, wheel 45 engaging a stepped driving wheel 55 on the shaft of a non-reversible electric motor for forward drive, and wheel 46 engaging an idler 57 engaging the driving wheel to give reverse drive, as described with reference to Figs. 4 and 5 of Specification 878,571. Friction wheels 45, 46 are carried by arms 47 pivoted to arms 48 rotatable about a pivot 49 carried by a lever 51 hinged at 52 and biased upwardly by a spring. A plate 68 is mounted on the lever 51 so as to slide longitudinally thereof and to be rotatable about the pivot 49, and carries pins 69 engaging the arms 48 so that when the plate is moved towards the hinge 52 the arms are spread apart and the wheels 45, 46 are removed from contact with the rim and the wheels 55, 57. Wheel 57 is spring biased away from the driving wheel 55 so that these wheels are also out of contact. The plate is moved longitudinally to permit springs to move the arms towards each other by a pin 76 engaging an arcuate slot in the plate and carried by a lever 71 coupled to a member 81 actuating an on-off switch 82 of the electric motor. In the longitudinally outward position of the plate, wheel 45 or 46 contacts the rim 56 according to the direction in which the plate is rocked about the pivot 49. This rocking movement is effected by a selector member 75 coupled to an arm formed on the plate. Specification 909,852 also is referred to.
Patent GB-1004492-A (GB)
Title: Data storage apparatus
IPC: G11B5/60
Filed: 1962-06-22
Abstract: 1,004,492. Magnetic disc recorders. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 22, 1962 [June 30, 1961], No. 24157/62. Heading G5R. Radial tracks 18 on a stationary magnetic disc 14 are selectively scanned by a head assembly 40, resiliently suspended from an arm 93, which is reciprocated by hydraulic means (Figs. 2, 3, not shown) operating piston-rods 51, 51a and controlled by valve means 42. Incremental piston means 75, as detailed in U.S.A. Specification 2,974,492, rotate the shaft 21 carrying the head assembly to select the desired track the head 95 being mounted in a transversely curved shoe 96, whereby the head is raised clear of the tracks during indexing by virtue of the self-generated air-cushion. The head is allowed to contact the track during transduction and is arranged to record on the radially outward stroke and to immediately check the recording by reading it on the return stroke. A stationary head-assembly/rotary-disc embodiment is also envisaged.
Patent GB-476974-A (GB)
Title: Improvements in shoes and method of making same
IPC: A43B13/30
Filed: 1936-09-04
Abstract: 476,974. Boots &c. DEL-MAC SHOE PROCESS CORPORATION. Sept. 4, 1936, No. 24249. Convention date, Sept. 18, 1935. [Classes 17 (i) and 17 (ii)] - A shoe upper is cut in accordance with a pattern drafted in conformity with the margin of a rounded sole blank assembled with a shank piece and a counter on a last and accurately proportioned for size and seam allowance without surplusage of material and is assembled on an assembly form and secured at its margin to the margin of the sole blank. A last is finally inserted and the shoe finished. As described for the manufacture of turn shoes, a rounded sole blank 25, Fig. 3, is channelled in known manner in the production of turn shoes to provide a feather 26 and a channel 28. The sole is larger than the bottom of the last by the breadth of the feather 26 so that the shoulder 27 corresponds to the bottom edges of the last, and it is moulded to turn the feather 26 and shoulder in opposite directions. It is placed on a last over a shank piece and a counter to give the sole its ultimate conformation and an upper is cut to a pattern as indicated above. The sole 25 is then tacked to the face of an assembly form 31, Fig. 10, with a guide mark on the sole registering with a gauge mark 32 on the form. This form is much smaller than the last and varies from the last in that its face is curved to compensate for the shank piece and counter subsequently to be inserted in the shoe. The upper and its lining 36 which is slightly smaller than the upper are secured about the marginal edge around the fore part only, prior to assembly with the sole. The edge of the upper is wiped into the channel 29 in the sole and is secured by latex, or by a strip of adhesive paper or other means prior to stitching the sole and upper together by chain stitching 45 lying flat in the sole channel 28. The thread of the seam may be resiliently secured in position by elastic adhesive coated on the thread throughout its length. The sole may be removed from the assembly form 31 for this operation, if desired. The sole is preferably in the normal dry condition so that the trimming, setting and finishing operations may be performed immediately after lasting the shoe. After stitching, the shoe is turned and the lining rearwardly of a slit 39 is, lifted and a shank piece and counter are inserted and secured in position as by a staple. A last is then driven in as usual, the feather 26 and shoulder 27 being caused thereby to resume their normal planes. The sole is conformed to the last bottom in usual manner and the usual finishing operations performed. The last is then removed and the shoe finished. Reference has been directed by the Comptroller to Specification 163,485, [Class 17 (ii)].