baber/WOPTO huggingface dataset:
Patent GB-1128553-A (GB)
Title: Semiconductor devices
IPC: H01L21/225
Filed: 1967-05-04
Abstract: 1,128,553. Semiconductor devices. WESTINGHOUSE ELECTRIC CORP. 4 May, 1967 [26 May, 1966], No. 20696/67. Heading H1K. The channel of an insulated gate field effect transistor is contained within a region comprising a deep portion 26 and a shallower portion 36, both portions being of the same conductivity type, and the portion 26 having a greater uncompensated surface dopant concentration than the portion 36. In order to produce this configuration use is made of the fact that on an exposed semi-conductor surface during a drive-in diffusion stage for acceptor dopants in an oxidizing atmosphere, some of the previously deposited dopant atoms out-diffuse from the portion 36 into the oxide layer which forms on the exposed surface, whereas no such outdiffusion occurs into a deposited oxide mask which covers the portion 26. The difference in diffusion depth also results natually from this effect. The invention may be applied to a complementary pair of MOS transistors as shown or to integrated circuits containing MOS transistors and resistors. Boron, gallium or indium may form the acceptor dopants in silicon or germanium devices.
Patent GB-1284707-A (GB)
Title: Friction pad pressing apparatus for use in disc brakes
Inventor: OOKA TOSHIWO
IPC: F16D55/224
Filed: 1971-04-19
Abstract: 1284707 Disc brake actuator; disc brakes SUMITOMO ELECTRIC INDUSTRIES Ltd 19 April 1971 [4 Feb 1970] 20928/71 Headings F2E and F2F A disc brake actuator which is adjusted to be operated by pressurized hydraulic fluid in each of or both a first and a second hydraulic circuit comprises a cylinder 4 having slidable therein first and second pistons 5, 6 for actuation by the pressure in the first and second hydraulic circuits respectively. The piston 5, in use, is adjacent a pad 3 of the disc brake, the second piston 6 being urged by resilient means into engagement with the first piston and, on the side thereof remote from the pad 3 the second piston is engaged by a detent means 19, 20, 21, working between the cylinder and the piston to prevent substantially movement of the second piston away from the first piston. The two pistons have the same effective areas. The detent means 19, 20, 21 also forms an automatic slack adjuster. An actuator as disclosed above may be mounted on each side of the brake disc.
Patent GB-1314086-A (GB)
Title: Weft drawing gripper for looms
IPC: D03D47/23
Filed: 1970-04-30
Abstract: 1314086 Shuttleless loom weft inserters SOMET SOC MECCANICA TESSILE SpA 30 April 1970 [30 April 1969] 20972/70 Heading DIE A weft-drawing gripper head has a spring loaded pivoted arm 5 with a hook 6 on its free end which grips the weft end against a thin metal plate 10 attached to a raised portion 7 of a lower arm 3. The plate 10 is attached to the arm 3, of plastics material, by a bentover tab 11 having a projection embedded in the plastics material. The end 13 of the plate 10 is bent towards the arm 3 which is provided with a notch 14 with which the tip registers upon reverse deformation.
Patent GB-1260483-A (GB)
Title: Control valves
Inventor: DAVIS JOHN WALTER
IPC: B60T15/36
Filed: 1968-05-03
Abstract: 1,260,483. Valves; fluid-pressure brakes. DUNLOP HOLDINGS Ltd. 30 April, 1969 [3 May, 1968], No. 20986/68. Headings F2F and F2V. A valve comprises a closure member 14 supported in a body 1 by diaphragms 8 and 9, e.g. of rubber, plastics, or metal, the diaphragm 8 sealing a chamber 17, and the member 14 being movable, e.g. by a solenoid armature 27, to make sealing contact with seats 15 and 20 disposed on each side of the diaphragm 9. In operation, the valve is fitted in a vehicle antiskid braking system and a port 22 is connected with a source of compressed air, a port 19 with atmosphere, and a port 23 with a brakereleasing chamber. The member 14 is loaded on to the seat 15 by a spring 25, or the resilience of the diaphragms, or the compressed air acting on the diaphragm 8, to connect the port 23 with atmosphere via openings 24 in the diaphragm 9 and allow the brake to be applied. In a second position, the member 14 is moved to engage the seat 20 by the solenoid, the atmospheric port 19 is closed, and the port 23 is connected with the port 22 to release the brake. In Fig. 2, not shown, the member 14 is joined to a spindle 10 by a part-spherical universal joint (30), and the knife-edge seat 20 has a flat annular portion (31) to prevent a seal (21) from being damaged.
Patent GB-531359-A (GB)
Title: A process for concentrating solutions of capillary-active substances
IPC: B01D1/16
Filed: 1939-07-19
Abstract: 531,359. Evaporating liquids which foam; spray evaporators. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. July 19, 1939, No. 21011. Convention date, Aug. 9, 1938. [Class 32] Liquids which foam on heating, e.g. solutions of capillary active substances, particularly aqueous soap solutions, e.g. aqueous solutions of alkali or alkaline earth salts of sulphuric acid esters derived from olefines or alcohols, are concentrated by converting the solution into a liquid vapour mixture by heating it in a tube or the like and injecting the mixture at high velocity in the form of fine jets or films into a free space so dimensioned that the injected mixture gives off substantially the whole of its vapour before it reaches the wall of the space, separate discharge lines for the vapour and the concentrated solution being provided. The liquid is injected at a velocity of at least 100 metres per sec., and in the case of soap solutions is heated to 90-110‹ C. The solution may be injected through a hollow vertical tube closed at the bottom and provided with helically arranged holes forming spray outlets for the liquid. Alternatively the liquid may be sprayed through a tube on to a horizontal disc.
Patent GB-699616-A (GB)
Title: Improvements in or relating to screwing machines
Inventor: BENN ALBERT WILLIAM
IPC: B23G5/10
Filed: 1952-08-22
Abstract: 699,616. Screwing die-heads. WINN& CO., Ltd., C. Aug. 22, 1952, No. 21085/52. Class 83 (iii). A self-opening die-head a rotated by hand or power and having a yoke d or equivalent means shifted by adjustable abutments p, q on a rod l fixed to the yoke or to a bracket m on the work saddle n has a safety stop-sleeve or bush s interchangeably fitted on the rod l. The length of the sleeve s is such that, if the abutment which opens the die-head has been incorrectly adjusted or insufficiently clamped, the end of the sleeve will engage it and cause it to open the die-head before any part of the saddle can come into contact with the die-head. If the rod is fixed to the saddle n, as shown, and slides through an arm j on the yoke, the sleeve s is fitted between the opening abutment q and the bracket but, if the rod is fixed to the yoke and slides through the bracket m, the abutments lie on each side of the bracket and the safetysleeve is fitted between the yoke and the abutment p. The yoke has rollers or slippers engaging the die-operating sleeve c and a handle t may be fitted vertically or horizontally in a socket h.
Patent GB-710125-A (GB)
Title: Improvements in or relating to metal frames for double glazed windows
Inventor: WILLIAMS ALLAN HEATHCOTE
IPC: E06B3/24
Filed: 1951-09-06
Abstract: 710,125. Window frames. WILLIAMS (CHESTER), Ltd., A. H. Aug. 29, 1952 [Sept. 6, 1951], No. 21098/51. Class 20 (3) A double glazed metal window frame includes T joints between members comprising a main rib 1 with a pair of glass-supporting flanges 2 projecting from one or both sides, the joints being secured by a tongue or tongues 4 at an end of one such member being passed through and bent over a corresponding slot or slots 6 in the main rib of another member. For a cross or double T joint as shown, with a common head and two tail members, slots 6 are twice the thickness of the main rib so as to accommodate the tongues from opposite tails. The flanges 2 of the head are received in cut-away slots 5 between the tongues. Glazing beads 8, 9 of resilient metal with one end taking over the edge of the panes and a hooked tip at the other engaging under a hook 3 at each edge of the main rib retain the panes against the lipped flanges 2. An angular strip 10 of rubber &c. may be inserted to protect the edge. A frame may be constructed entirely with T-joints the short projections left at corners being embedded in a casing in which the frame is set. Or external comers may be formed as single joints, e.g. by welding.
Patent GB-575428-A (GB)
Title: Improvements in or relating to window and like frames
IPC: E06B1/32
Filed: 1943-12-16
Abstract: 575,428. Door and window frames. HILLS 'PATENT GLAZING CO., Ltd., and HINCHLIFFE, E. D. Dec. 16, 1943, No. 21099. [Class 20 (iii)] A window or door frame of metal or other heat conducting material such as that described in Specification 571,671 is made in two parts having peripheral flanges 3, 5 separated from each other and bedded in a strip of heat insulating material 4. The strip 4 is positioned against a rib 6 or series of spaced indents.
Patent GB-299927-A (GB)
Title: Improvements relating to devices for taking up slack in flexible elements, such as electric leads, cords and the like
IPC: F21V21/16
Filed: 1927-08-10
Abstract: 299,927. Willmore, A., and Purchase, O. H. Aug. 10, 1927. Adjusting length of.-A device for taking up slack in electric leads, cords, &c. comprises a spool member a having studs or cam-like projections b thereon about which the cord &c. is coiled and an enclosing casing d having diametrically disposed openings e therein, means being provided for securing the member a in an adjusted position with respect to the casing. In the form shown the securing means comprises a screw h; alternatively a spring stop or a ratchet device may be provided. The projections are preferably so arranged that the cord can be passed between them and are of such form that no sharp turns are produced in the coiled cord.
Patent GB-353236-A (GB)
Title: Improvements in brackets or supports for curtain rails
IPC: A47H1/144
Filed: 1930-07-14
Abstract: 353,236. Brackets. HARRISON, S. C., Bradford Street Works, Birmingham. July 14, 1930, No. 21242. Addition to 300,939, [Class 52 (v), Window, stair, and like furniture &c.]. [Class 52 (v).] A curtain rail bracket of the kind described in the parent Specification has a pair of side arms joined together at their forward ends, their rear ends being bent to provide overlapping or adjacent portions so arranged that when such portions are moved towards each other by a fastening screw, a binding action on the rail is set up at the forward ends. In the construction shown the rail e is carried in aligned recesses d in a pair of arms a, b connected at their front ends by an integral crosspiece c, the rear ends of the arm being bent to form a bin-like structure, an extension of the arm a forming the sides g, h, back f and base i and an extension of the arm b forming the top j and front k. The front k and back f are apertured to receive a fixing screw m which, on being tightened, moves the front k towards the back f thereby causing the arms to grip the rail. The base i and top j may be provided with unaligned apertures to receive a vertical fixing screw which on being tightened draws the front k towards the back.
Patent GB-420321-A (GB)
Title: Improvements in wearing apparel
IPC: A41F11/16
Filed: 1933-07-28
Abstract: 420,321. Suspender attachments ; garters. CRAIG, I. B. S., 27, Devonshire Street, Queen Square, Bloomsbury, London. July 28, 1933, No. 21283. [Class 141] A device for wearing upon the legs of a person for the engagement of stocking suspenders, comprising an elastic band and a plurality of upstanding looped tabs, is characterized in that each of the looped tabs consists of an inextensible looped strip 8 cut on the bias and an elastic portion 7 secured to the band 3, and in that one end of the band is doubled over, passed through a ring 4 fitted on the other end of the band, and adjustably engaged with that portion of the band on to which it is returned. The elastic portions 7 are stitched to the band near its top and bottom edges, and one of the tabs is fitted on the doubled over portion of the band 5. The device may be worn with or without stockings.
Patent GB-1215838-A (GB)
Title: Master card for use with hectagraphic type printing apparatus
IPC: B41M5/04
Filed: 1968-05-06
Abstract: 1,215,838. Printing surfaces; stationery. SCRIPTOMATIC S.A. 6 May, 1968 [5 May, 1967], No. 21319/68. Headings B6A and B6C. A master card blank 1 for imaging prior to use in an addressing machine is supplied with a temporarily attached sheet 6 bearing a carbon type coating 5. The sheet 6 is folded at 7 such that prior to use the assembly may be stored with an interleaf 8 between the coating 5 and the rear surface of the intended image area 2. After imaging this rear surface by applying typing or manuscript upon the front surface of the area 2, the sheet 6 is discarded.
Patent GB-1189672-A (GB)
Title: Improvements in or relating to Electric Signs.
Inventor: PRIOR EDMOND
IPC: G09F13/04
Filed: 1967-05-09
Abstract: 1,189,672. Illuminated signs. CLAUDGEN Ltd. 8 May, 1968 [9 May, 1967], No. 21416/67. Heading G5C. A box sign of the type having a front panel 2 and rear-illumination means comprises, between the cover panel 16 and legend panel 23, a louvre panel 18 comprising a plurality of louvres 19, Fig. 3, sloping downwards from inside towards the outside of the sign and mutually spaced vertically, so that external light (e.g. sunlight) striking the front panel at a downwardly sloping angle of more than 30 degrees to horizontal will be intercepted by the louvres; thus the legend can only be seen when the illumination means 7, 9 is energized. As described, the louvre panel 18 is formed by slitting an aluminium panel and stretching it transversely. Behind the louvre panel is a diffusing (e.g. frosted) panel 22. The legend panel 23 has cutout light-transmitting portions; alternatively, the legend is formed on it by printing. Discharge tubes 7, 9 are backed by reflectors 6, 8 of identical colours thereto, e.g. green and red.
Patent GB-356384-A (GB)
IPC: C07F9/10
Filed: 1930-07-15
Abstract: The capacity for emulsification of vegetable phosphatides such as soya bean lecithin is increased by treatment with aqueous hydrogen peroxide.  An example is given.ALSO:Vegetable phosphatides such as soya bean lecithin are refined by treatment with aqueous hydrogen peroxide, the excess whereof is subsequently decomposed or removed. The treatment partially decolourizes the phosphatides, and increases their capacity for emulsification.  According to an example, sliced soya beans are extracted with a mixture of 90 parts of benzene with 10 parts of alcohol at 20-30 DEG  C.  The solvent is removed from the extract by evaporation, waste steam is led into the residue, and the lecithin which separates is freed by centrifuging from much of the associated oil.  The resulting mixture of lecithin, oil and water is stirred with 30 per cent aqueous hydrogen peroxide without heating. Subsequently the lecithin is dried by heating under reduced pressure at 80-85 DEG  C. for 2-3 hours.
Patent GB-351769-A (GB)
Title: Improvements in or relating to lace-up boots and shoes
IPC: A43B23/26
Filed: 1930-07-16
Abstract: 351,769. Lace-up boots and shoes. PITTROFF, A, 35, Residenzstrasse, Blasewitz, Dresden, Germany. July 16, 1930, No. 21544. Convention date, Feb. 3. [Classes 17 (ii) and 43.] A tongue a for a lace-up boot or shoe has a cross extension b integral therewith or attached thereto at the upper portion and provided with a cut or notch to any desired depth to form two flaps which can be turned out over the top of the upper and down over the lacing bows and secured by press buttons or other fastenings to the upper. If desired, a number of cuts or notches may be provided to form a number of flaps, and the extension on one side of the cut or notch may be omitted.
Patent GB-336013-A (GB)
Title: Tipping wagon
IPC: B60P1/10
Filed: 1929-07-13
Abstract: 336,013. Sparshatt, J. H., and Dann, C. B. July 13, 1929. Tipping wagons are provided with such a rear pivotal connection between the body and the underframe that by raising the front of the body the rear portion thereof is caused to turn and rise about a pivot at the rear of the underframe. The rear end of the body 1 is carried by links 5 which are pivoted to the underframe 4 and body 1 respectively at 10, 11. Free intermediate spur gears 8 are mounted on the links 5 and engage with segmental gear 12, 13 fixedly mounted on the underframe 4 and bodv 1 respectively. As the body tips by means, for instance, of a telescopic screw jack 2 the gear 13 rotates the gear 8 causing it to ride on the gear 12 and so rotating the link 5 about its pivot 10 to elevate the rear end of the body.
Patent GB-1234931-A (GB)
Title: Alkalised alumina
Inventor: PHILP JOHN
IPC: B01J20/08
Filed: 1967-05-10
Abstract: 1,234,931. Alkalized alumina. UNILEVER Ltd. 9 July, 1968 [10 May, 1967], No. 21644/67. Heading C1A. The invention comprises an alkalized alumina of the general formula M 2 O/Al 2 O 3  possessing a surface area of from 90-180 m<SP>2</SP>/g., a pore volume of from 0À2-0À7 cc/g. and a molar ratio M 1 O/Al 2 O 3  of from 1À0-1À4, wherein M represents the alkali metal lithium, sodium or potassium which may be prepared by reacting an aqueous solution containing lithium, sodium or potassium aluminate with CO 2  to form an aqueous suspension of precursor precipitate having a pH of from 8À5-9À5, spray drying this suspension and calcining at not above 600‹ C. Suitably the aqueous solution contains a water soluble stabilizing agent e.g. sodium carboxy methyl cellulose, and CO 2  is passed in under pressure not exceeding 10À55 kg/cm.<SP>2</SP> and at temp. 20-60‹ C. The spray dried precursor is preferably calcined at 520-600‹ C. in an inert atmosphere. The calcined product may be used as a sorbent for sulphur oxides e.g. SO 2  in hot flue and roaster gases. For this purpose the sorbent is obtained in pelletized form either by mixing the calcined product with water and a binding agent e.g. bentonite or MgO, moulding this mix and heating to at least 250‹ C. till all water is removed, or by mixing the spray dried precursor with binding agent, moulding, and calcining at 520‹-600‹ C. After use the sorbent may be regenerated by treatment with a hot reducing gas e.g. H 2  or CH 4  which converts the sulphur content to elemental sulphur which may be recovered in known manner.
Patent GB-1142475-A (GB)
Title: Improvements relating to the reproduction of coloured images
Inventor: MAWBY DAVID HARRY
IPC: H04N1/60
Filed: 1965-05-21
Abstract: 1,142,475. Copying in colour by masking. CROSFIELD ELECTRONICS Ltd. 10 May, 1966 [1 June, 1965; 21 May, 1965], Nos. 21658/65 and 23334/65. Heading H4F. The invention relates to an apparatus for reproducing coloured originals in which electric signals representing the primary colour components of the coloured originals are derived by means of an electro-optical scanner and is concerned with masking to correct for imperfections in printing inks. In accordance with the invention, at least one colour component channel (the blue channel, as illustrated) includes a single control 7 which, when operated, simultaneously adjusts the amplitude of a colour correction masking signal obtained from the red channel and a self-masking signal obtained from the blue channel in opposite directions so that the grey scale compression applied to the blue signal channel as a consequence of the masking remains constant throughout the range of adjustment, the output from control being applied through an attenuator 10. To apply the invention, the signal amplitudes at the two ends 12 and 13 of control potentiometer 7 are adjusted to be equal when a black or grey patch is scanned. Buffer circuits 4 and 8 provide low impedance output stages to the potentiometer. Attentuator 10 provides a high input impedance for the signal from the potentiometer wiper. The output from attenuator 10 is combined in adder 11 with an inverted form of the blue signal obtained via inverter 5. Potentiometer 7 may be replaced by a pair of ganged controls operating in the colour masking and self masking circuits.
Patent GB-707516-A (GB)
Title: Improvements in or relating to co-ordinate drilling or boring machines
IPC: B23Q5/26
Filed: 1952-08-29
Abstract: 707,516. Drilling. APPARATEBAU BURKHARDT GES. Aug. 29, 1952 [Sept, 1, 1951], No. 21719/52. Class 83 (3) A drilling machine has compound work tables 7, 9 hydraulically adjustable by cylinders 8 10 to which. fluid under pressure is supplied by a single pump 6 driven by a motor 2 from which drives, for other parts of the machine are also derived. The spindle head 12 may be fed slowly or rapidly at right angles to the tables by a cylinder 13 under either manual or automatic control, the latter effecting reversal of the feed at an adjustable point. For accurate final adjustment of the hydraulically-moved parts, a small two-cylinder reciprocating pump, preferably hand-operated, supplies pressure through a control valve to the part to be adjusted ; the suction side of the pump is preferably connected with a pipe-line that is under slight pressure, such as the discharge line from the main pump: The spindle may be rotated by belt and toothed gearing, as shown, from the motor 2 or by a hydraulic motor supplied by the pump 6.
Patent GB-1005283-A (GB)
Title: Extreme value electrical senser
IPC: G01N30/86
Filed: 1963-05-30
Abstract: 1,005,283. Electric selective signalling systems. BODENSEEWERK PERKIN-ELMER & CO. G.m.b.H. May 30, 1963 [June 5, 1962], No. 21720/63. Heading G4H. [Also in Division G1] An extreme value sensing circuit comprises a differentiating circuit operating on an electrical input signal, an integrating circuit operation on the output of the differentiating circuit, circuit means limiting the integrated signal at a preset value irrespective of further variations in the sense of development thereof, i.e. further increases for positive slope portions of the input or further decreases for negative slope portions thereof, and circuit means for reversing the sense of development when the input signal passes through a maximum or minimum value; with circuit means responsive to reversals of the integrated signal to indicate maxima or minima of the input signal. An input signal U 0  (Fig. 2a) is applied at 40 (Fig. 1) to a capacitance degenerative amplifier differentiating circuit 46 whose output signal dUo/dt (Fig. 2b) passes to a Miller integrator 50   developing a signal representing Ua = #dU 0 /dt-dt at 54, thus corresponding to the input signal but with a differing constant term. This is applied to opposed diodes 56, 58 in series with relays 86, 88 and bias sources limiting the integrated signal (Fig. 2c) to threshold values ŒU s  for further increases in the positive slope portions of the input signal U 0  or further decreases in the negative slope portions. Reversals of the slope of the input signal permit resumption of integration. Relays 86, 88 operate respectively to indicate occurrence of a peak or trough of the input signal. A mechanical analogue is described. In Fig. 3 a gas chromatography apparatus comprises a separating column 24 through which a carrier gas flows, into which a mixture to be analysed is introduced by an input sample pick-up 26. The components traverse the column and appear at successive times at the outlet, where a detector 28 develops a chromatogram signal (Fig. 4) connected by transducer 10 into a train of pulses dependent in frequency on the signal amplitude, which are fed through shaper 20 to counter 22 integrating individual peaks of the chromatogram signal. An extreme value senser as described releases a printing mechanism 34 when the signal traverses a minimum to receive and record the total count representing the integral of a peak, and zeroizes the counter. A buffer register 36 indicates the integrated valve of rapid variations which the printer is incapable of following.