baber/WOPTO huggingface dataset:
Patent GB-547767-A (GB)
Title: Improvements in photoelectric contour followers
IPC: B23K7/00
Filed: 1941-04-02
Abstract: 547,767. Automatic control systems for pattern following mechanism. BRITISH THOMSON-HOUSTON CO., Ltd. April 2, 1941, No. 4434. Convention date, April 3, 1940. [Class 40 (i)] [Also in Group XL] A gas-torch cutting appliance, welding tool or the like and a photo-electric apparatus are mounted on a carriage capable of universal movement in a plane parallel to a table carrying a pattern or templet. The photo-electric apparatus is caused to operate steering means whereby the contour of the templet is followed, an electric motor 26 drives a traction wheel 21 in contact with the table 19 and a second motor 28 is arranged to turn the wheel to effect steering and preferably, at the same time through a chain and sprocket drive to turn the lens system 35 of a light projector about a parallel axis so that a spot of light 23 normally equally divided by the edge of the templet 16 is rotated about a point on the said edg e, and preferably at the trailing end a of the spot, whenever the balance of light and dark areas in the spot is disturbed. Thus at a point such as B or C, the steering wheel and the spot are turned in like directions effecting the required movement of the tool in a damped manner, since the unbalance causing the steering is reduced at the same time. The photo-cell 31 is connected in series with resistances 74, 72 and part of a potentiometer 70 across a D.C. supply so that changes in total cell illumination will change the potential on a grid 64 of a double triode 60 normally biassed by the potentiometer connection across the said supply to give equal anode outputs, the resistance 74 with a condenser 75 and resistance 71 provide against hunting. The potential of grid 64 determines the strength of a saturating current from inductance 55 in the phase-shifting grid circuit of one of two valves 42, 43 connected back-to-back between an A.C. supply and the armature of the constantly excited D.C. motor 28. An inductance in a similar grid circuit for the second valve is saturated by the anode current of the other portion of the triode and varies oppositely with that in the first portion, owing to the constant total current determined by the connection of the series resistance 61. (see Specification 516,837, [Group XXXV]). Thus variation of the total illumination of the photo-cell in opposite senses from its normal condition will cause the normally stationary motor 28 to run in a direction requisite to correct the variation by turning the light spot and changing the direction of motion of the carriage. A circular light spot is unnecessary. The templet may be constituted by a physical object or by a translucent or an opaque design such as lines of some width on a contrasting background. Specification 530,456, [Group XL], also is referred to.
Patent GB-597333-A (GB)
Title: Improvements in or relating to the mounting of electrical switches on wall surfaces and the like
IPC: H02G3/14
Filed: 1945-02-22
Abstract: 597,333. Switch cases. HIRSCHHORN. W. Feb. 22, 1945, No: 4514. [Class 38(v)] A cover plate for use with a wall box has a clamping bar 17 adjustably connected to it by screws 18 and adapted to make clamping engagement with lugs 14 on the wall box 11 to secure the cover plate in position when the screws 18 are tightened. In Fig. 1, a, switch 15 or a socket is carried on the cover plate which may be spaced from the bar 17 by a spring 19. The bar 17 has broadened ends which engage beneath the lugs 14 to counteract any slight errors in the position of the wall box. In a modification, Fig. 3 (not shown), the switch is carried on the bar 17 inside the box 11. In a further modification, Fig. 4, the bar 17 engages under arms 21 in a U-shaped member 22. The switch may be that described in Specification 577,126.
Patent GB-548078-A (GB)
Title: Improvements in or relating to cabinet washing and wringing equipment
IPC: D06F45/12
Filed: 1941-04-05
Abstract: 548,078. Washing and wringing machines. ACME WRINGERS, Ltd., and BURT, J. W. April 5, 1941, No. 4579. [Class 138 (ii)] In a combined washing and wringing apparatus a washing machine 11 and a wringing machine 12 are at opposite sides of a cabinet structure and swing about horizontal axes 14 and 18 disposed in vertical planes at right angles. The wringer is locked in working position by spring catches 19, 20 and a similar pair 16 are fitted to lock the washer in working position. A hinged table top 26 covers the top and a hinged shelf 27 is fitted. A spring working in an upright tube is compressed by a plunger linked to the plate 17 carrying the wringer so as to cushion its movement in lowering and facilitate raising.
Patent GB-1127741-A (GB)
Title: Improvements in or relating to systems for sensing and recognising or analysing data
Inventor: SCARROTT GORDON GEORGE
IPC: G06F3/00
Filed: 1965-02-03
Abstract: 1,127,741. Pattern recognition. INTERNATIONAL COMPUTERS & TABULATORS Ltd. 31 Jan., 1966 [3 Feb., 1965],.No. 4588/65. Heading G4R. A record medium is scanned optically at each of a plurality of positions, the scanning of a position being such as to produce a signal having a first frequency component if the optical density has a single maximum and having a second frequency component if the density has two maxima, an output signal-being produced if the ratio of the amplitudes of the two components exceeds a certain value and, at the same time, the optical density at the centre of the position lies within a defined range of values. As described, a flying spot scanner 6 scans a printed character along a series of circles spaced along a vertical raster, each circle being traced twice before moving to the next, the displacement between adjacent circles being equal to circle radius. The circle diameter exceeds the widest character line width. One pulse will be produced from the photodetector 8 for each tracing of a circle which crosses one edge (only) of a line, and two if both edges are crossed, so the two tracings of a given circle produce a component of frequency f say (equal to the circle frequency) in the first case and 2f in the second. The components are separated by   feeding the signal direct and through a 1/2f delay 20 to an adder 19 and a subtractor 21 which produce outputs proportional to the amplitudes of the 2f and f components respectively. These outputs are compared 22 and if the ratio of the first over the second exceeds a threshold, a signal is provided to an AND gate 27. This signal could mean the circle straddles a line or the gap between two lines. The latter possibility is eliminated by applying to the AND gate 27 a signal indicating the optical density at the centre of the circle, obtained during the previous circle and stored in a shift register 26. It is obtained by strobing the photodetector output at the right instant and comparing 25 the resulting sample with a signal representing the density difference between the blackest and whitest parts of the circle, a signal being delivered to the shift register 26 if the ratio of the sample to said difference exceeds a certain value. It is mentioned that the circles could be replaced by rectangles or ellipses. They could follow the character outline. Each circle could be traced any number of times, and for large numbers, the frequency components could be separated by filters. The circle radius may be an integral multiple of the displacement between adjacent circles.
Patent GB-229686-A (GB)
Title: Improvements in or relating to doors for motor or other vehicles
IPC: E05F11/38
Filed: 1925-02-19
Abstract: 229,686. Baehr, G. Feb. 22, 1924, [Convention date]. Doors for passenger vehicles.-In open-toclosed road vehicles, a door body which can be applied to various makes of car bodies comprises a frame 1, Fig. 1, having suitable lock and hinge fittings is provided in combination with a group of glass panes 6, 6<1>, preferably two in number, articulated upon pivots 2, 3 made solid with the door frame so as to permit of their being located inside the frame or of taking up a position above it, a flap 12 being provided for closing the concealing recess for the glass panes. The door frame is adapted to be given the form desired by suitable machinery &c. or by the addition of wedges or filling devices. The hinges 24 of the door frame are provided with a bent wing 20 to enable the hinge 24 to be in alignment with the hinge 8 of the glass panes, the other wing 21 being secured to the door frame. The door frame may have an inclined side 17, Fig. 5, with appropriately shaped glass panes to fill in the space between the hood and the body. Specification 223,942, [Class 108 (i), Road vehicles, Body details &c. of], is referred to.
Patent GB-290379-A (GB)
Title: Improved combined or convertible box and table
IPC: A47B3/10
Filed: 1927-02-19
Abstract: 290,379. Sage, F. A. Feb. 19, 1927. Tables convertibla into boxes.-A convertible box and table or tray consists of a polygonal, rectangular, or triangular section box with flat sides hinged together so as to open out and form a flat surface. Fig. 2 shows a rectangularsection box with sides 1, 2 hinged to a side 3, so that when inverted, the parts 1, 2, 3 form a table supported on hinged legs 10. Rule-joints 4, hinges 5, quadrant stays or hinged stays 6, and bars 27 slidable in guides 26, keep the three parts 1, 3, 2 in alignment. Fig. 6 shows a modification comprising three sides 22, 23, 24 and two triangular ends 25, forming, when folded up, a three-sided box useful as a footrest. As shown. the ends 25 are let into grooves 26 on the parts 22, 23, 24, which grooves are adapted to receive alternatively runners 27 for holding the parts 22, 23, 24 in alignment. The legs 28 are screwed into sockets, or may be hinged to the rails 27. 'They may be telescopic.
Patent GB-852914-A (GB)
Title: Preparation of polypeptides from alpha-amino acids
IPC: C08G69/10
Filed: 1957-02-12
Abstract: Polypeptides are made by reacting phosgene with at least one a -amino acid of the general formula: <FORM:0852914/IV(a)/1> or salts thereof where R is hydrogen or a hydrocarbon radical having 1 to 8 carbon atoms and R1 is hydrogen, a hydrocarbon radical having not more than 8 carbon atoms or a heterocyclic radical having no active hydrogen atoms, under anhydrous conditions, in a continuous process; said acid being suspended in a solution of phosgene in an aromatic hydrocarbon or an aliphatic halide, the solution being refluxed until the amino acid is dissolved, the excess phosgene and hydrogen chloride liberated in the reaction being removed from said solution, an initiator added, and the temperature raised up to the boiling point of the solution and maintained until polymerisation is complete. Specified a -amino acids are glycine, alanine, a -amino-n-butyric acid, valine, norvaline, leucine, norleucine, isoleucine, a -amino-caprylic acid, 2-amino-4, 6, 6-trimethylheptanonic acid, b -phenylalanine, a -cyclohexyl glycine, a -aminoisobutyric acid, a -amino-a -methyl butyric acid and a -(2-furyl) glycine. Specified acid salts are the alkali, alkaline earth metal or hydrohalide salts. Specified solvents are benzene, toluene, methylene chloride or xylene.  The phosgene and hydrogen chloride may be removed from the solution by distillation, aeration with dry nitrogen, slurrying with anhydrous basic compounds e.g. sodium carbonate, potassium carbonate, calcium carbonate, calcium oxide or barium oxide, by slurrying with activated charcoal or by absorption by an aluminium oxide column. Specified initiators are dodecylamine, water, pyridine or piperidine. The examples describe the preparation of polypeptides from a solution of phosgene in benzene, 1-leucine and phenylalanine with dodecylamine as initiator, phosgene and hydrogen chloride being removed by (I), (II) and (V) distillation, (III) and (IV) distillation followed by slurrying with activated charcoal, (VI) passing the N-carboxy-anhydride through an aluminium oxide column.  The products may be used as paints, varnishes, lacquers, enamels or as coatings for cloth, leather and paper or as filaments, threads, bristles, yarns, strips, films or bands.  They may be used in combination with natural or synthetic resins, e.g. damar, rosin, congo, urea-formaldehyde, phenylformaldehyde, or polyesters.
Patent GB-1457073-A (GB)
Title: Low pressure mercury vapour discharge lamp with amalgam
IPC: H01J61/28
Filed: 1974-02-01
Abstract: 1457073 Fluorescent lamps PATENTTREUHAND - GES FUR ELEKTRISCHE GLUHLAMPEN mbH 1 Feb 1974 [6 Feb 1973] 04840/74 Heading HID In a low pressure mercury vapour discharge lamp, an amalgam-forming metal is dispersed over the surface of an electrode stem, and ceramic material is situated on the stem between the metal and the discharge. As shown, the electrode stem 1 supports the leads 4, 5 (shown one behind the other) for a directly heated electrode 6, and a wire 8 carrying an iron cap 7. A strip 10 of In, to form an amalgam, is sprayed on the flared part 2 of stem 1, with a strip 11 of of ceramic (ZrO 2  or SiO 2 ) between strip 10 and the discharge, to prevent migration of the amalgam. The cap 7 carries a strip 9 of a secondary-amalgam-forming alloy, e.g. Sn and/ or In and/or Pb to assist the run-up of the lamp. The electrode stem is mounted at one end of a sealed envelope (12) (Fig. 2, not shown) which has a fluorescent layer (13) on its inner surface. Reference has been directed by the Comptroller to Specification 1,084,500.
Patent GB-1090586-A (GB)
Title: Improvements relating to jet engines
Inventor: SCOTT JOHN ALEXANDER HENDERSON
IPC: F02C7/18
Filed: 1966-02-03
Abstract: 1,090,586. Motor vehicles. ROLLS-ROYCE Ltd. Feb. 3, 1966, No. 4879/66. Heading B7H. [Also in Division F1] The invention relates to a jet engine having conduit means adapted to receive cooling fluid and disposed in heat transfer relation with a heated portion of the engine, the conduit means having a plurality of tortuous flow paths therethrough, at least part of the tortuous flow paths directing the cooling fluid in a substantially opposite direction to the working fluid of the jet engine. The invention is shown applied to a gas turbine jet engine which comprises compressor 11, combustion equipment 12 and turbine 13 which drives the compressor, the turbine exhaust gases discharging through propulsion nozzle 15. A casing 16 is disposed around the combustion equipment, turbine 13 and jet pipe 14 and provides a series of passages 17, 18, 19, Fig. 2, through which cooling air tapped from the engine compressor through duct. 21 flows through inlets 22 in series flow through the passages 17, 18, 19 and discharges through outlets 23, the flow of turbine exhaust gases through the jet nozzle 15 assisting the flow of cooling air through the passages 17, 18, 19. The gas turbine jet engine may be mounted in a land vehicle such as a tank.
Patent GB-556691-A (GB)
Title: Foundation garments
IPC: A41C1/00
Filed: 1942-04-14
Abstract: 556,691. Girdles. AMYOT, L. J. A. April 14 1942, No. 4893. [Class 141] A foundation garment such as a girdle comprises relatively narrow front and rear panels and two relatively wide side panels 7, 8 of woven fabric, each consisting of a body section 13 and a relatively narrow upper band portion 14, which is woven to form sections 15, 16 integral with the body section 13. Within the flat tubular band formed by securing the upper edges of the sections 15, 16 together are secured by stitching a number of spaced, diamondshaped stiffeners 18 formed of cord-stiffened fabric, the cords of which are parallel and arranged so that the maximum stiffening effect is at the centre of the band 14. The girdle may be provided with a continuous stiffened band, and may itself be formed of a single-piece body-portion.
Patent GB-563605-A (GB)
Title: Improvements in or relating to rim strakes for tractor and other wheeled vehicles
IPC: B60B15/02
Filed: 1943-03-29
Abstract: 563,605. Vehicle wheels. GUNN, F. N., PROCTOR, P. E., and SMITH, H. V. March 29, 1943, No. 5005. [Class 144 (i)] Metal strakes for use on the wheels of tractors and other vehicles consist of base plates 1 curved to fit the wheel rims supporting by strut portions 3, 11 treads 4 having road engaging surfaces concentric with the wheel and bevelled at their ends 8, 15 so as to form penetrating ' surfaces when the tractor is driven over fields or ploughed land. The strakes are strengthened by webs 5, 10, 12, 13. The base plates are formed with bolt holes 2, 17.
Patent GB-433184-A (GB)
Title: Improvements in or relating to welding machines
IPC: B23K5/06
Filed: 1935-02-16
Abstract: 433,184. Making gas radiators. SVENSKA AKTIEBOLAGET GASACCUMULATOR, Liding÷, near Stockholm. Feb. 16, 1935, No. 5035. Convention date, March 29, 1934. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-In automatic welding- machines, particularly for welding the seams of gas radiators, the speed of the feed between the burner and work is regulated by a cam corresponding in shape to the work and cooperating with a lever or the like which regulates the speed of the prime mover. A number of radiator sections 4 are mounted on supports 3 carried by a pair of slides 1 which are traversed in a guide 2 by a shaped toothed rack 10 carried by the supports and engaging a pinion 9 driven by spur and worm gear from a prime mover such as an electricmotor or cone pulleys. The whole assembly is mounted on a shaft 6 so that it may be rotated in welding the ends of the sections, for which purpose the rack has curved ends. In order to balance the assembly during rotation counterweights 11 sliding in grooves in the guide 2 are connected to the slides by chains 12. A cam 20 fixed on the supports 3 engages a roller 19 on a support 16 pivoted at 17 and carrying on a shaft 15 a number of burners 21 corresponding to the number of radiator sections so that the desired inclination of the burners in relation to the work is maintained throughout. In order that the speed of traverse may be varied according to the varying thickness of the work or shape thereof, the supports 3 carry a further cam 22 which co-operates with a bell-crank lever 24 connected by a link 30 to a double bell-crank 28, which is secured to a rod 29 controlling the prime mover. Such rod may control a variable resistance of an electric motor or may shift the driving belt on cone pulleys. During rotation of the work the cam cooperates with the bell-crank 24 to cause the rod 29 to be lowered to increase the speed of traverse when welding the ends. The bell-crank 28 has a counterweight 33 to hold the roller 23 of lever 24 in contact with the cam 22. Manual adjustment of the speed independent of the cam 22 may also be effected by a handle 31, the link 30 for this purpose being compressible. To increase the speed the handle is pressed to the left, which raises the roller 23 from the cam, and to reduce the speed the handle is pressed to the right which shortens the link 30.
Patent GB-1024531-A (GB)
Title: Improvements in or relating to a bearing for a staff with pointed end
IPC: F16C17/08
Filed: 1964-02-06
Abstract: 1,024,531. Bearings; lubricating. EBOSA S.A. Feb. 6, 1964 [Feb. 14, 1963], No. 5038/64. Heading F2A. In a bearing for a watch for example, having a staff 3 with a pointed end 4 received by a depression 8 in a housing 1, a lubricant reservoir is formed and lubricant is retained therein. Both the shape of the reservoir and surface tension of the lubricant help prevent the escape of the lubricant from the bearing. In the embodiment of Fig. 1 (not shown), the staff 3 is mounted in a recess 2 of the housing 1, the pointed end 4 of the staff 3 engaging the depression 8 of the housing 1 and lubricant 9 being maintained in the depression 8 and in the reservoir formed by surfaces 6, 7 of the housing. The diameter of the recess 2 is predetermined and serves to guide the pointed end 4 into the depression 8. In modifications, the wall or part of the wall of the recess 2 is inclined, the greatest diameter being adjacent the depression 8; the reservoir is formed by the insertion of a member 13, Fig. 6 (not shown), into a recess 10 of the housing 1; and the housing is recessed to form suitable lubricant retaining and staff guiding surfaces and is additionally recessed to receive a hardened block 18, Fig. 6 (not shown).
Patent GB-273208-A (GB)
Title: Improvements in distributing mechanism of typographical line casting machines
IPC: B41B11/18
Filed: 1927-02-23
Abstract: .273,208. Hart, H., (Mergenthaler Linotype Co.). Feb. 23, 1927. Distributing matrices .-Relates to apparatus in which matrices, after being sorted by a fountseparator, pass down shoots to the main distributors, and particularly to escapementmechanism for controlling the delivery of the matrices to the main distributors. The matrices, passing down inclined rails D', Fig. 1, in a distributor-box D, are arrested by an escapement comprising an arresting-member E, Fig. 4, and a releasing-dog E<1>, both mounted in a supporting block D<2>. The member E is pivoted on a pin e, and has depending fingers E<3>, which are yieldingly held in the path of 'the matrices by a spring E<4> under the control of an adjusting- screw E'. The pivoted releasing-dog E<1> has a lip E<5>, adapted to engage the leading matrix, and to force it past the fingers E<3>. The dog is oscillated or continuously rotated by connections from the arm A<3> Fig. 1, of the matrix-lifter A<1>. The supporting block D<2> is mounted independently of the distributor-box D. The fingers E<3> may be stationary, and the matrices released by an endwise movement, effected, for example, by a releasing-dog engaging their lower ends.
Patent GB-167793-A (GB)
Title: An improvement in colour photography
IPC: G03C7/06
Filed: 1920-02-20
Abstract: 167,793. Whitfield, G. S. Feb. 20, 1920. Drawings to Specification. Colour photography.-Relates to the production of separate colour component positives from a three-colour pattern-screen negative by means of a key masking-screen which has a pattern in black or colour to mask two of the colour records of the screen negative allowing the third colour record to be pointed, and consists in means for obtaining correct registration of the key screen visually. The taking-screen has bands of colour at the end or ends and superposed on the patterntaking screen which stops one of the colours of the screen and transmits the other two, and the key masking-screen has at the ends a coloured pattern area the same as the pattern of the taking screen. The key masking-screen is registered correctly with the screen negative by adjusting it so that only a single colour is seen through a portion of the screen area superposed on a portion of the negative exposed through the registering bands of colour superposed on the taking-screen. The method is particularly described as applied for negatives taken through Paget screens, in which case the taking-screen is formed with bands of yellow and blue-green colours which stop respectively the light through the blue and red portions of the screen, producing corresponding transparent areas in the negative exposed through the blue and red areas of the screen respectively where the bands are superposed. These transparent areas are used for registering the key masking-screen by means of the coloured pattern screen thereon.
Patent GB-1048876-A (GB)
Title: Improvements in or relating to venturi scrubbers
IPC: B01D47/10
Filed: 1964-02-06
Abstract: 1,048,876. Gas-scrubbers. METALLGESELLSCHAFT A.G. Feb. 6, 1964 [Feb. 9, 1963 (3)], No. 5144/64. Heading B1R. The cross-sectional area of the throat of a Venturi Scrubber of circular cross-section is variable in such a manner that the cross-section is always substantially circular. As shown in Fig. 1 the throat of a Venturi Scrubber 1 has a cylindrical membrane attached at its upper and lower ends tothe walls of the Venturi and distensible by the introduction through line 5 of a pressure fluid. In modifications (Figs. 2 and 3 (not shown)) the cross sectional area is adjustable by means of a series of movable elements.