baber/WOPTO huggingface dataset:
Patent GB-1008971-A (GB)
Title: Improvements in or relating to the production of resinous coatings
IPC: B05D7/26
Filed: 1963-07-29
Abstract: Coating compositions comprise an epoxide resin, a flexibility-imparting agent, one or more hardeners and powdered or granular corundum and/or silicon carbide.  The flexibility-imparting agent may be a monomeric epoxide having not more than 6 carbon atoms, the glycidyl ether of an aliphatic alcohol or mercaptan, or a dialkyl ester of b -dithiopropionic acid.  The hardeners may be amino compounds such as aliphatic, cyclo-aliphatic or aromatic polyamines, polyethers of oxyamines and polyhydric alcohols, amino compounds of tetrahydropyridine or of piperidine, or the amidoamines formed from polyamines and polymerized unsaturated fatty acids; or mercapto compounds.  An accelerator such as a phenol, aminophenol or alcohol, and a thixotropic agent such as bentonite or finely divided silica may also be added.  The epoxide resins used, are liquid at room temperature and have at least 2 epoxide equivalents per molecule; suitable resins are glycidyl ethers of polyhydric phenols, preferably diglycidyl ethers of 4, 41-dihydroxydiphenyl-propane. Mixtures of such ethers with ethers of polyhydric alcohols or N-glycidyl compounds may also be used.ALSO:A surface is coated with a primary coating at least 60m  thick comprising an epoxide resin, a flexibility-imparting agent, one or more hardeners and from 10-200% by weight of the resin of powdered corundum and/or silicon carbide having a grain size of from 5-60m  and thereafter applying to the primary coating at least one additional coating comprising epoxide resin, flexibility-imparting agent, hardener(s) and granular corundum and/or silicon carbide having a particle size in the range of from 0,07-2 mm.  The additional coating, or the final additional coating if more than one additional coating is applied, may be applied from a mixture of all four components, or may be applied in two stages, the resin, flexibility-imparting agent and hardener(s) being applied first followed by the granular material, which is scattered on the surface and then rolled in.  The flexibility-imparting agent may be a monomeric epoxide having more than 6 carbon atoms, the glycidyl ether of an aliphatic alcohol or mercaptan, or a dialkyl ester of b -dithiopropionic acid.  The hardener may be an amino compound, of which many examples are given, or a mercapto compound; a phenolic accelerator may also be included.  The coatings may be applied by brushing or trowelling to concrete or to shot-blasted iron or aluminium sheets.
Patent GB-843735-A (GB)
Title: A method of manufacturing hardened facing bricks and other ceramic articles
IPC: C04B33/13
Filed: 1958-09-19
Abstract: In manufacturing hardened facing bricks and other ceramic articles a mixture of inferior clay, e.g. waste clay, and cement or cement clinker is pressed, hardened by steam under pressure, and glazed or enamelled.  In an example 80 parts by weight of inferior clay and 20 parts by weight of cement or cement clinker are ground and mixed, pressed at 140-160 kg/cm2, and steam treated at 160-180 DEG C and 8 atmospheres pressure for 4 hours in a digester.
Patent GB-254964-A (GB)
Title: Improved method for the transformation of lignites, coals and other carbonaceous matter into fuels of high calorific power including smokeless fuels fit for all industrial and domestic purposes
IPC: C10L5/02
Filed: 1925-11-28
Abstract: 254,964. Debauche, H. Nov. 28, 1925. Composition fuel-To increase the calorific value of lignite and other fuel, the material is subjected to a continuous low temperature distillation, and the semi-coke whilst still hot is screened and graded, mixed with pitch or other binder, and agglomerated. The semi-coke from the oven A and quenching box B is raised by an elevator 1) to a screen conveyer E, and the graded products are fed together with pitch to a malaxator O, wherein the mixture can be kneaded without reheating, and then delivered to a briquetting press Q
Patent GB-777739-A (GB)
Title: Improvements in and relating to electrical switchgear
Inventor: COCKCROFT WILLIAM ARTHUR
IPC: H01R13/707
Filed: 1954-10-20
Abstract: 777,739. Two-part couplings combined with switches. DORMAN & SMITH, Ltd. Oct. 19, 1955 [Oct. 20, 1954], No. 30132/54. Class 38 (1). A combined plug-and-socket connector and switch, interlocked so as to prevent withdrawal of the plug when the switch is closed and closure of the switch when the plug is removed, comprises a reciprocable member 13, 14 and a flanged rod 25 pressed upwards by a spring 26, cooperating with a spring-biased, pivoted lever 21 having a bifurcated upper part 27 with inclined surfaces 23 and a foot 22. When the switch handle 12 is rotated to close the switch, part 14 depresses rod 25, the bottom of which is moved between the bifurcations 27 to bear on lever 21 and urge its foot 22 outwards behind the screwed ring 18 of the plug 17. When the plug is withdrawn from the position shown, the ring 18 moves clear of the inclined surfaces 23, freeing the lever 21 for rotation by its spring 24, whereby a flat surface 28 on the lever comes under the rod 25 to prevent switch closure. When the plug is replaced, the ring 18 engages the inclined surfaces 23 and deflects the lever 21. The socket 16 is mounted on an adapter box 15 secured to the switch casing.
Patent GB-357388-A (GB)
IPC: G05D3/12
Filed: 1930-10-08
Abstract: 357,388. Wireless receiving apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Gunther, C. A. ; 1011, Union Street, Schenectady, and Brokaw, C. A. ; 339, Vley Road, Scotia, both in New York, U.S.A.) Oct. 8, 1930, No. 30160. Convention date, Oct. 8, 1929. [Class 40 (v).] For controlling the tuning of a wireless receiver or the like from a distance, the control element shaft 5 is driven by an electric motor 6, and by depressing one of the remote pushbuttons 36, 37, 38, an electromagnet 35 is energized to rock a lever 29 about its pivot 30, to close a switch 27, and so start the motor. When the control element has been moved to its position corresponding to the depressed pushbutton, an appropriately adjusted cam 50 on the control shaft opens a switch 41 to interrupt the circuit of the electromagnet 35, and allow the lever 29 to fall opening the switch 27, and arresting the motion of the control shaft by means of a detent 60 engaging the other end of the cam 50. The supply to the motor 6 is thus cut off, and its momentum absorbed by the worm 19, which engages a wheel 16 on the shaft 5, moving axially against suitable springs. A separate cam is mounted on the shaft 5 in a suitable position for each of the remote switches 36, 37, 38, and each cam has a corresponding stop switch 41, 42-which it opens only in one direction of rotation. Cam 51, for example, corresponding to the switch 37, only opens its switch 42 when moving in a clockwise direction, the motor 6 being automatically reversed at the limits of motion of the shaft 5, by means of a cam 11 moving a switch 9.
Patent GB-853568-A (GB)
Title: Method of bonding an electric conductor to the metallic surface electrode of a dry type rectifier
Inventor: MAIWIRTH FRITZ
IPC: H01L21/108
Filed: 1958-09-23
Abstract: 853,568. Plate rectifiers. BRANDT G.m.b.H. W. Sept. 23, 1958, No. 30305/58. Class 37 The semi-conductor layer in a dry plate rectifier is provided with a synthetic insulating layer containing granular material, the upper particle portions of which project from the insulating layer, the latter being covered with a metallic layer to which a current lead is attached. The synthetic layer may be heat cured after application of the granular particles.
Patent GB-159056-A (GB)
Title: Improved inkstand
IPC: B43L25/02
Filed: 1919-12-04
Abstract: 159,056. Krauss, V. Dec. 4, 1919. Inkstands .-An inkstand of the bird-fountain type comprises a rectangular prism f of glass or other material with an extension b forming the dip well as shown. The front c of this extension is above the level of the base e of the reservoir a, which is itself raised by means of the hollow bottom g. A penrest h is provided at the top, and the shape of the inkstand may be varied. Reference has been directed by the Comptroller to Specifications 5666/89 and 16862/13.
Patent GB-1083038-A (GB)
Title: Improvements in and relating to semi-conductor devices
Inventor: SHIELDS JOHN
IPC: H01L29/74
Filed: 1963-07-31
Abstract: 1,083,038. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 19, 1964 [July 31, 1963], No. 30415/63. Heading H1K. In a semi-conductor device including a body containing four sequentially arranged regions of alternate conductivity types, both the inner regions comprise two sub-regions of different conductivities, the N-type sub-region nearer to the central junction having a greater conductivity than the other N-type sub-region, and the P-type sub-region further from the central junction having a greater conductivity than the other P-type sub-region. The arrangement of the regions ensures that as the applied voltage is increased the tendency for the space charge region of the central junction to expand into the N-type region is reduced, thus increasing the breakdown voltage of the device. As shown, Fig. 2, a silicon controlled rectifier is produced by placing a slice P 2  of P-type silicon on a quartz pedestal, which acts as a mask, and epitaxially depositing layers N 2 <SP>+</SP> and N 1  in turn on its surface by exposing the heated slice to an atmosphere of silicon tetrachloride and phosphorus pentoxide vapours, the concentration of the phosphorus pentoxide being adjusted to produce the required conductivities. The resulting structure is heated in the presence of gallium vapour to produce surface layers P 1 <SP>+</SP> and P 3 <SP>+</SP>. A pellet of gold-antimony alloy is placed on the P 3 <SP>+</SP> layer and alloyed to form region N 3 <SP>+</SP> to which a molybdenum cathode terminal 1 is soldered. Molybdenum anode terminal 2 and trigger terminal 3 are subsequently soldered to parts of layers P 1 <SP>+</SP> and P 3 <SP>+</SP> respectively by a similar alloying operation using aluminium as the solder. The completed device may be enclosed in a housing or otherwise encapsulated. The device may also be produced by epitaxially depositing layers P 1 <SP>+</SP> and P 3 <SP>+</SP> on the wafer using boron as the dopant.
Patent GB-924037-A (GB)
Title: Novel penicillin substances and process for preparing same
IPC: C07D499/60
Filed: 1961-08-23
Abstract: Relates to 6-(l(-)-a -phenoxy-n-butyramido) penicillanic acid and pharmaceutically acceptable salts thereof, which may be prepared either by reacting 6-aminopenicillanic acid or a pharmaceutically acceptable salt thereof with l(-)-a -phenoxy-n-butyric acid in the form of the acid chloride or mixed anhydride thereof, and recovering the novel 6-(l(-)-a -phenoxy-n-butyramido) penicillanic acid or pharmaceutically acceptable salt thereof thus produced, or by reacting 6-aminopenicillanic acid or a pharmaceutically acceptable salt thereof with dl-a -phenoxy-n-butyric acid in the form of the acid chloride or mixed anhydride thereof, to form a mixture of d(+) and l(-) stereoisomers of (a -phenoxy-n-butyramido) penicillanic acid or a pharmaceutically acceptable salt thereof, and separating and recovering 6-(l(-)-a -phenoxy-n-butyramido) penicillanic acid or a pharmaceutically acceptable salt thereof from the mixture of stereoisomers.  The penicillin and its salts may be administered parenterally or orally in pharmaceutical forms such as ampoules, pills, compressed tablets, filled capsules, suspensions and ointments.
Patent GB-1247851-A (GB)
Title: Improvements in artificial legs
Inventor: THOMPSON HERBERT
IPC: A61F2/64
Filed: 1968-06-26
Abstract: 1,247,851. Artificial leg. CHAS A. BLATCHFORD & SONS Ltd. 12 Nov., 1968 [26 June, 1968], No. 30453/68. Heading A5R. An artificial leg comprises a thigh, a shin swingable relative to the thigh, a load bearing tube 25 in the shin a non-load-bearing tube 26 in the skin upward of the load bearing tube a plunger 30 axially slidable in the non-load-bearing tube 26, a spring 33 urging the plunger upwardly relative to the non-loadbearing tube and a connecting member 9 which connects the plunger to the thigh and which is pivotally connected behind the knee joint to the thigh for movement in an anterior-posterior plane. It is intended that the non-load-bearing tube assembly be removable and replacable with different devices for controlling the swinging of the shin depending on the requirements of the patient.
Patent GB-1223088-A (GB)
Title: A hinged and foldable hand-brake lever for vehicles
IPC: B60T7/10
Filed: 1969-06-17
Abstract: 1,223,088. Fastenings. DR. ING. h.c.F. PORSCHE K.G. 17 June, 1969 [9 July, 1968], No. 30530/69. Heading E2A. [Also in Division F2] A vehicle hand-brake lever may be folded down about hinge 12 to a stop 17 below the driver's seat 1. When applying braking tension to cable 11 the handle part 3 presses against the pivoted part 4 to rotate it about the ratchet 15. A pawl 14, engaging this ratchet may be released by control rod 7, 8, which also carries a spring clip 10 which grips the free end 16 of the pawl to hold the handle in its raised position when required but which releases when the handle is pressed down.
Patent GB-883210-A (GB)
Title: Improvements in or relating to straining and sifting processes and apparatus
IPC: B07B1/38
Filed: 1958-09-24
Abstract: 883,210. Filters. HURST, J., and RUSSELL CONSTRUCTIONS Ltd. Sept. 24, 1959 [Sept. 24, 1958; Dec. 15, 1958], Nos. 30531/58 and 40401/58. Class 46. [Also in Group II] A filter for straining liquids comprises a septum 40 which is kept in vibration with a rapid orbital movement of small amplitude combined with a rocking movement like that of a swash plate and is so supported that its centre of gravity is held from any substantial vertical movement. The septum 40 is carried by a supporting structure comprising resiliently mounted rods 24, the centres of which must be less than three-quarters of the radius of the septum from the axis of the septum, and members 30 which are connected to a carrier ring 36 and triangular sub-frame 31, which supports an out-of-balance flywheel 33 whose centre of gravity must be lower than that of the supporting structure. The carrier ring 36 has toggle clamps 38 which engage the septum flange 39. The supporting structure is carried at 28 by a base structure comprising a member 11 having rollers 12 and 13, of which 12 is rendered steerable by the tiller 14, and upright members 15 having arms 18 connected thereto which support a spider 19 and inverted V-frame members 23. The spider 19 supports an electric motor 20 which drives the flywheel 33 through a known coupling. The bottom outlet from the septum comprises a funnel shaped member directly below the septum and a lateral shoot 41, the two parts having concentric overlapping portions where they approach one another and a pneumatic tube is disposed between the overlapping portions to provide a seal. Above the septum a conical shaped casing having an inlet aperture has secured to it by spacers 45, so as to stand just above the septum, a guide wall 42 extending from a point slightly offset from the centre of the septum to an aperture connecting with the top outlet 43. The toggle clamps 38 may be replaced by studs and nuts. Specifications 562,210 and 699,745 are referred to.
Patent GB-194753-A (GB)
Title: Improvements in or relating to control-surfaces for aircraft, submersibles and the like
IPC: B64C3/54
Filed: 1921-11-16
Abstract: 194,753. Frise, L. G., and Bristol Aeroplane Co., Ltd. Nov. 16, 1921. Planes and the like, construction o f ; steering, balancing, and regulating altitude.-I n a controlling-surface for aircraft, submarines &c. of the type in which a main fixed section has situated immediately behind it in the direction of travel, a movable auxiliary section which in its neutral position forms a continuation of the fixed section, movement of the trailing edge of the auxiliary section in an upward direction causes its leading edge to project beyond the contour of the fixed section or opens a gap between the two sections, but downward movement is possible without producing any such projection or gap. The invention is described in its application to a balanced aileron 11 associated with an aeroplane wing 10. The balanced portion 13 (which may either extend the whole length of the aileron or as is more usual may be formed only at the wing tip) is tapered at its upper surface 18 to form a sharp leading edge 14. In its neutral position as shown in Fig. 1 the aileron 11, with the exception of the tapered portion 18, forms a continuation of the wing 10, but when the aileron is moved in an upward direction, its leading edge 14 projects below the lower surface of the wing and produces a gap 17, Fig. 3. When the aileron is moved downward, the leading edge 14 has first to traverse the thickness of the curved rear edge 15 of the wing 10, as shown in Fig. 4, and then if the movement is continued it mav be made to protrude above the upper surface of the wing.
Patent GB-465471-A (GB)
Title: Improvements in or connected with conveyors of the belt type
IPC: B65G45/00
Filed: 1935-11-05
Abstract: 465,471. Endless - belt conveyers. MAVOR & COULSON, Ltd. and THOMSON, J. Nov. 5, 1935, No. 30551. [Class 78 (i)] Spillage cleared off the lower run of a conveyer is returned to the top run by an elevator disposed close to the side of the belt in a vertical plane and overhanging the top run of the belt for direct delivery thereto. The plough C, Fig. 1, deflects spillage from the lower run on to the horizontally extending portion 8 of a scraperchain type conveyer D<1>. The upwardly extending part 9 of this conveyer delivers the spillage to the boot 10 of a bucket elevator D<2>, the top of which overhangs the top run A of the belt as shown in Fig. 2. The conveyer D<1> and elevator D<2> are driven from the return drum B through chain-and-sprocket gearing 12. In a modification the elevator arrangement comprises a single circuit which at its upper part is turned inwardly to overhang the top run. According to the Provisional Specification the elevator arrangement may be entirely at the side of the conveyer and the spillage may be directed on to the top run by means of a shoot. Specifications 298,788, [Class 78 (i)], and 428,056 are referred to.
Patent GB-1344209-A (GB)
Title: Fasteners ofr large shipping containers
IPC: F16B19/10
Filed: 1972-06-29
Abstract: 1344209 Rivets HUCK MFG CO 29 June 1972 [9 July 1971] 30604/72 Heading F2H A two-piece fastener 10 for securing together metal sheets 16, 17 and a wood or fibre member 14 comprises a tubular rivet 19 and a pin 18 having a head 23, engageable with an end of rivet shank 22, and a shank 24 having a breakneck groove 26. Thus when the pin 18 is pulled into the rivet 19 by a tool (not shown), a concave under surface 28 of the pin head 23 deforms the rivet shank 22 so as to form a mechanical interlock between the pin head 23 and rivet shank 22. The pin shank 24 then snaps at groove 26.
Patent GB-1186516-A (GB)
Title: Improvements in Electrical Signalling Systems Employing Pulse Code Modulation
Inventor: AVERY JOHN ARTHUR
IPC: H03K5/24
Filed: 1966-07-07
Abstract: 1,186,516. Analogue-to-digital converters. PLESSEY BTR Ltd. 4 July, 1967 [7 July, 1966], No. 30651/66. Heading G4H. In a p.c.m. converter the input signals are compared with a reference signal to set a sign toggle to a first state if the input is greater, and to a second state if the reference is greater, and a regulator increases the magnitude of the reference signal if the toggle is more often in the first state and to decrease it if the toggle is more often in the second state. The toggle is tested at regular intervals and the reference signal is changed during the following interval so that the average number of positive and negative values remains equal. The regulator REG comprises a capacitor C1 having a charging circuit through transistor VT2 which is caused to conduct by a signal via diode D3 when .a signal from logic circuit L indicates that the toggle is in the first state. The signal, proportional in magnitude to the charge on the capacitor C1, is transmitted via transistor VT3 to reversing circuit RC. This corrects the zero error of the circuit. The input signal is balanced by a feedback signal from the logic circuit L which is switched by one of the transistors VT4, VT5 either directly to the summation point SP or via the reversing circuit RC according to the polarity.
Patent GB-603033-A (GB)
Title: Improvements in or relating to ironing apparatus
IPC: D06F81/08
Filed: 1945-11-16
Abstract: 603,033. Ironing by dielectric heating. HOOVER, Ltd. Nov. 16. 1945, No. 30821. Convention date, Nov. 24, 1944. [Class 39(iii)] An ironing apparatus comprises, an ironing table 11 containing comb-shaped electrodes 32, 33 connected to a high frequency generator 13 and an iron 50 containing a metal plate capacitively connected with electrodes 32, 33 in the table. The material to be ironed is heated between the electrodes 32, 33, and the third electrode contained in the iron. by dielectric loss within the material. The frequency of the generator 13 may be varied by a control knob 14 to provide a different degree of heating. according to the nature of the material to be ironed.
Patent GB-454741-A (GB)
Title: Improvements in or relating to typewriting and like machines for manifolding purposes
IPC: B41J17/00
Filed: 1935-11-07
Abstract: 454,741. Ink-ribbon mechanism. SMITH PREMIER TYPEWRITER CO., Ltd., 1, Leadenhall Street, and REMINGTON TYPEWRITER CO., Ltd., 100, Gracechurch Street, both in London, and WOODGATE, P. W., 133, Old Farm Avenue, Sidcup, Kent. Nov. 7, 1935, No. 30838. [Class 100 (iv)] In manifolding arrangements for use on typewriters comprising one or more carbonpaper rolls from which carbon paper is drawn and interleaved with the webs of paper, each roll is associated with a brake which is adapted to be used also for detaching the used part of the carbon paper when it is desired to draw forward a fresh part. In the arrangement shown in the Figure, a roll 1 of carbon paper is wound on a spindle 2 mounted in a frame 3, and engages a curved brake-shoe 5 which is suspended by lugs 6 from a rod 4 and is formed with a cutting or tearing edge 10. The brakeshoe may be spring-pressed. The spindle 2 is geared to a crank 9 for winding and unwinding the carbon paper. The frame 3 runs on a track on the typewriter framework, and is coupled to the platen-carriage by means of a forked arm. Alternatively, the frame may be secured directly to the platen-carriage. A guide-finger 21 for the paper webs is pivoted on the frame 3.