baber/WOPTO huggingface dataset:
Patent GB-833733-A (GB)
Title: Improvements in and relating to x-ray intensifying screens
IPC: G21K4/00
Filed: 1957-06-18
Abstract: 833,733. Luminescent screens. MALLINCKRODT CHEMICAL WORKS. June 18, 1957 [June 20, 1956], No. 19228/57. Class 39(1). An X-ray intensifying screen for radiography comprises a sheet of substanitally X-ray transparent supporting material and a fluorescent coating therefor said coating comprising a fluorophor which has an absorption peak for X-radiation lying within the range of 30-70 kev. and which emits a substantial portion of the energy so absorbed as radiation lying in the blue-violet-ultraviolet region of the spectrum. The fluorescent coating consists of an alkali metal iodide such as potassium or sodium iodide activated with a thallium compound, e.g. 0À1 to 1% thallium, and a binder. The fluorescent coating may also comprise a solvent in which the binder is soluble but the fluorophor is not. The binder which is preferably substantially transparent to X-rays and to blue-violet-ultraviolet light may be a polymeric substance such as polystyrene and the solvent an aromatic hydrocarbon such as toluene, benzene or xylene. The coating may also include a dispersing agent such as aluminium stearate. Preferably a thin film of the fluorescent coating is applied to the supporting material, which may be glass or Bristol board, and is covered with a thin film of the binder for further protection against air and moisture. Specific examples of screens according to the invention are described.
Patent GB-121123-A (GB)
Title: Improvements in Friction Change Speed Gearing.
Inventor: BARBIER GASTON MAURICE
IPC: F16H37/08
Filed: 1918-11-23
Abstract: 121,123. Barbier, G. M. Nov. 28, 1917, [Convention date]. Variable-speed epicyclic gearing; differential gearing.-In variable-speed disk-and-roller gearing, the driven rollers 3, 4, Fig. 1, are mounted loosely on the driven shaft 5 and engage friction, toothed, or bevel planet-pinions 7 carried by a spider 6 keyed to the shaft 5. In the position shown, the rollers are driven at the same speed in opposite directions and no drive is transmitted to the shaft 5. When the rollers are displaced relatively to the disk, they are driven at different speeds, and the spider 6 then rotates and drives the shaft 5. The disk 1 may be spherical, speedchanges being effected by swinging the driving- shaft as represented by the angle a; or the disk may be flat, in which case the rollers and spider are moved together along the shaft 5. Fig. 4 shows the device combined with differential gearing consisting of bevel, toothed, or friction pinions 12 on the spider 6 engaging sun-wheels 10. 11 fixed to the driven wheels 13, 14.
Patent GB-596520-A (GB)
Title: An ejector corer
IPC: A47J25/00
Filed: 1945-07-28
Abstract: 596,520. Coring fruit &c. RIGHTON, E. July 28, 1945, No. 19354. [Class 28 (ii)] A coring tool for apples &c. comprises a tube A sharpened at A<1> and having a spring- loaded piston C for ejecting the core after use. The handle D, to which the spring is fixed, is detachable from the tube by means of Ó split spring pin E. The metal parts may be plated &c. to prevent corrosion.
Patent GB-811374-A (GB)
Title: Improvements in or relating to the malting of barley
IPC: C12C1/02
Filed: 1956-06-22
Abstract: Prior to germination, barley is moistened with an aqueous solution or suspension of gibberellic acid or an alkali metal, alkaline earth metal or ammonium salt or ester of the acid, or crude material isolated from a gibberellic-acid producing fermentation medium.  A solution strength of 5 micrograms gibberellic acid per ml. is suitable.  Specification 783,611, [Group IV (b)], is referred to in regard to gibberellic acid.
Patent GB-1387875-A (GB)
Title: Sacrificial anodes
IPC: C23F13/02
Filed: 1972-04-26
Abstract: 1387875 Sacrificial anodes SWISS  ALUMINIUM Ltd 26 April 1972 [27 April 1971] 19461/72 Heading C7E A sacrificial anode consists of an anode carrier of steel surrounded by a diffusion zone of Al diffused into the steel, in turn surrounded by a body of Al or Al-based alloy, the body being cast with a porous structure, the pores being of a fineness such that water will enter the pores and this water will then prevent entry of oil into the pores, the diffusion zone being united with the carrier and the body, the zone and its unions with the carrier and the body being free of splits and hair cracks.
Patent GB-214146-A (GB)
Title: Improvements in binders for loose leaf book covers
IPC: B42F13/00
Filed: 1923-07-30
Abstract: 214,146. Copetand, R. J. July 30, 1923. Covers.-The cover 2 of a loose-leaf binder is hinged to its clamping- bar 1 by looped straps 3, which pass through slots 6 formed in a tongue 5 projecting from the clamping-bar. The tongue is formed by encircling the clamping-bar with a strip of sheet material the longitudinal edges of which project and are secured together. One edge of the material may be bound back over the other edge, and the slots punched in the triple thickness of sheet thus obtained. Alternatively, the tongues may be formed of separate bands of sheet material bound round the bar. Strips of protective cushioning material are held in position in slots 8, or may be used to fill up the spaces intervening between the separate bands.
Patent GB-613740-A (GB)
Title: Improvements in or relating to building construction
IPC: E04B1/21
Filed: 1946-06-28
Abstract: 613,740. Building frameworks; floors. BOOMEN, T. P. VAN DEN. June 28, 1946, No. 19465. Convention date. May 8, 1946. [Classes 20(i) and 20(iv)] A concrete building construction, e.g. for supporting the floors of a building, comprises columns 1 connected by horizontal beams each beam consisting of two parts 5. 6 between which the upper ends of the columns are clamped in spaced cavi ties so that the bean rests on the upper sur faces of the columns The floor parts 4 of ar upper floor have their adjacent ends in con tact and are provided with vertical flanges 3 which grip behind lon gitudinal ridges 7 pro vided on the upper side: of the beam halves, the lower ends of the columns of this floor being supported by th( beams and clamped between the vertical flanges 3. Each row of columns of the ground floor rests on a foundation wall 2 which also supports the floor, parts 4 by means of the vertical flanges 3 The columns 1 as described in the Specification as open to inspection under Sect. 91 may also be provided with projections which support the beams or rest on the foundations. This subject-matter does not appear in the Specification as accepted.
Patent GB-335272-A (GB)
Title: Improvements in and relating to coin releasing mechanism for automatic vending machines
IPC: G07F5/04
Filed: 1929-06-25
Abstract: 335,272. Booth, J., and Nightingale, T. June 25, 1929. Coin action, multiple-coin.-In a device whereby coins are deflected from a single shoot into one of two shoots alternately, auxiliary means are provided to retain the device in its extreme positions. As shown in Fig. 1, the deflecting member 7 is controlled by a spring 11. In other forms, a weight is suspended from the end of the arm 7, the upper end of the arm swings between two magnets, a ball runs freely in a hole in the horizontal portion of the member or a quantity of mercury runs freely in a V- shaped hole.
Patent GB-1174902-A (GB)
Title: Improvements in and relating to Building Structures
Inventor: MARSHALL ALAN WILLIAM DAVID
IPC: E04B5/02
Filed: 1966-05-03
Abstract: 1,174,902. Multi-storey buildings; concrete floors. A. W. D. MARSHALL and J. R. WHEATLEY [trading as ALAN MARSHALL & PARTNERS and REDPATH DORMANLONG Ltd]. 3 May, 1967 [3 May, 1966], No. 19495/66. Headings E1A and E1W. A steel framed building structure is provided with prefabricated floor panels of openwork grid during erection to permit positioning of service pipes 7 prior to covering the grid openings with concrete 9 laid on filler blocks 8. The horizontal beams 1 are each provided with a row of pins 2 to facilitate bonding of the floor panels thereto.
Patent GB-1423334-A (GB)
Title: Centrifuge rotor
IPC: F16K11/083
Filed: 1974-05-03
Abstract: 1423334 Centrifuge with tubes AMERICAN HOSPITAL SUPPLY CORP 3 May 1974 19537/74 Heading B2P A moulded centrifuge rotor comprises a circular, horizontally extending central hub 11 adapted to be connected to a drive shaft and an annular tube-holding portion 22 extending outwardly from the hub and provided with a plurality of openings 23 extending likewise outwardly from the hub and each being adapted to receive an elongate tube 14 and being defined by a pair of opposed side walls 31, a bottom wall 32 extending between the side walls and being spaced as at 33 from the hub, and a top wall 20 spaced upwardly from the bottom wall to permit a tube to be inserted therebetween, the top wall extending between the side walls in vertical alignment with the spacing between the bottom wall and the hub, no portion of the top wall being in vertical alignment with any portion of the bottom wall whereby a tube may be secured against transverse movement within each opening and the rotor may be formed in one operation by moulding, e.g. from thermoplastic or thermosetting plastics or from metal. The top wall 20 is in the form of a inner cylindrical wall which is provided with spaced openings 21 which are in alignment with the openings 23 and with openings 25 in an outer cylindrical wall 24. The tube holding portion 22 in the form of a frusto-conical wall extends between the walls 20 and 24 adjacent the upper ends of the openings 21 and 25. The outer end 34 of the bottom wall 32 of each opening 23 terminates inwardly of the inner surface of cylindrical wall 24. A V-shaped end wall 27 is connected to the bottom of the outer cylindrical wall 24 and terminates outwardly as at 36 of the outer surface of that wall. The planar wall 15 of the hub terminates as at 35 inwardly of the inner surface of the wall 20 adjacent its openings 21. A tube containing material to be centrifuged is inserted in turn through openings 21, 23 and 25 until its closed end 14a engages the end wall 27, its open end projecting within the wall 20. Upward movement of the tube is restrained by walls 20 and 24, downward movement by the bottom wall 32, transverse movement of the side walls 31 and the sides of openings 21 and 25, and pivotal movement by the walls 20 and 24 in cooperation with the wall 32. Additional bottom support for the tube is provided by a bevelled portion 37 of the hub wall 15. In a modification, the retaining surfaces of the tubes, instead of being provided by the cylindrical walls 20, 24, may be provided by short cross ribs which extend only across the openings 23 in the frusto-conical wall 22 between the side walls 31. The wall 22 could then be joined directly to the outer wall 27.
Patent GB-530900-A (GB)
Title: Improvements in radial-cylinder internal combustion engines
IPC: F02B75/18
Filed: 1939-07-05
Abstract: 530,900. Radial cylinder engines. DAIMLER-BENZ AKT.-GES. July 5, 1939, No. 19564. Convention date, July 15, 1938. [Class 7 (ii)] In engines having six groups of cylinders, each group consisting of an even number of cylinders in star formation, with associated pistons working on a single crank, the crankangles are 100 degrees, 100 degrees and 160 degrees.
Patent GB-121130-A (GB)
Title: Filtering Device for Centrifugal Machines Employed for Separating Solid Matters from Liquids.
Inventor: DUNER EDVIN
IPC: B04B7/18
Filed: 1918-11-27
Abstract: 121,130. Duner, E. Nov. 22, 1917, [Convention date]. Baskets or drums.-The filtering-surface of a strainer separator consists of a number of wires a stretched on a frame b and so placed that the spaces between adjacent wires increased outward from the axis. The separated solid particles are free to slide outward and are discharged over the top edge to the receiver g. Liquids passing through the filter are discharged to the receiver f. In a modification, different grades of separated liquid, graded by horizontal partitions h, pass to separate receivers. Vanes v are provided on the base of the drum.
Patent GB-147683-A (GB)
Title: Improvements in or relating to thread milling machines
IPC: B23G1/32
Filed: 1920-07-08
Abstract: 147,683. American Multigraph Co., (Assignees of Trundle, G. T.). Oct. 11, 1915, [Convention date]. Milling screws; chucks.-A thread-milling machine, particularly adapted to cut external threads on screw plugs &c. has two parallel work-spindles, and the cutter, which has a small longitudinal movement during the cutting operation is moved transversely from one spindle to the other to act in succession on the respective blanks. The hollow work spindles 20 are driven by worm gearing from a driving shaft 11, and each has a conical recess 28, Fig. 6, engaged by the head 31 of a collet 30. The collets are operated to clamp and unclamp the blanks by rods 32 controlled by levers rocked alternately by a cam on a longitudinal shaft 40 driven by a worm 29 on the driving-shaft. An abutment 155, rigidly fixed to the head 141 of each spindle and passing through a notch in the collet, ensures uniform positioning of the blanks. The cutter spindle 90 driven from a pulley 96 is mounted on a casing 81 sliding transversely on ways carried by a longitudinal slide 71.- The cutter spindle is moved longitudinally by an amount, depending on the pitch of the thread to be cut, by means of a grooved cam on the shaft 40 which co-acts with a roller 101 on a stud carried by the slide 71. The transverse movement of the cutter spindle is limited by abutments 130, and is controlled by a cam 110, the rollers 111 being positioned after the abutments have been adjusted to give the correct depth of cut. In operation, the cutter is moved longitudinally away from the head a of the rotating blank and the thread completed. The cam 110 then feeds the cutter towards the other spindle, and simultaneously the return longitudinal movement is effected, thus positioning the cutter to operate on the second blank. As soon as a blank is completed, it is released by the forward movement of its collet and a fresh blank is inserted by hand.
Patent GB-332374-A (GB)
Title: Improvements in, or relating to, sliding-sash windows
IPC: E06B3/50
Filed: 1929-06-26
Abstract: 332,374. Wilson, F. June 26, 1929. Sliding sashes removable from frame ; sash cord attachments.-Sliding balanced sashes removable from frame for cleaning have sash cords on one side removable and are supported when free from the frame by rods or cords &c. 21. 22. removably attached to that side and to the top of the frame or to the wall at the opposite side. The inner and parting beads are removable for a sufficient length to permit the sashes to rotate away from frame and are secured by a thumb-screw or otherwise. The cord attachments are hooks 24, 27, 11 on the frame and sash and wire loops or the like secured to the cord or chain. A wire loop 4 may be secured to the cord by means of inturned ends and a ferrule 13, Fig. 5. A hook 4 may be provided on the frame to hold the sash cord when detached from the sash. The sashes may be supported by the removable sash cords and the tie members 21, 22 attached to hooks on the opposite side when it is desired to replace the fixed sash cord.
Patent GB-778792-A (GB)
Title: Improvements in photographic reproduction processes and in developers and sensitive emulsions therefor
IPC: G03C8/06
Filed: 1955-07-08
Abstract: 778,792. Photographic reversal transfer; silver halide emulsions and developers. KODAK, Ltd. July 8, 1955 [July 15, 1954], No. 19785/55. Drawings to Specification. Class 98(2) In transfer from unexposed areas of an emulsion layer to a receiving layer to form a positive silver or silver compound image therein during development in presence of a silver halide solvent, a 3-pyrazolidone and an ascorbic acid developing agent are used together, and may have been originally present in either the emulsion layer or the developer. Separately these agents have too low developing energy for the process. Developers containing the two agents particularly with hypo as silver halide solvent may be used to develop silver halide emulsion layers in the ordinary way, and subsequent washing of the latter is unnecessary. Potassium iodide may replace the hypo for this. Fifteen examples illustrate the transfer process, some of these being concerned for comparison purposes with one only of the above pair of developing agents and with hydroquinone as developer. In Example 1 an exposed bromoiodide negative emulsion. layer, and a baryta coated paper treated with a mixture formed from silica, sodium sulphide, cadmium acetate, lead acetate and water as receiving layer, are immersed for six seconds in a developer containing sodium sulphite, d-iso-ascorbic acid, hypo, sodium hydroxide, potassium bromide, 1- phenyl-3-pyrazolidone and benzotriazole, pressed together and separated after one minute to show the positive image in the receiving layer, such image consisting of both silver sulphide formed by precipitation and silver formed by nuclei effect. In Example 4 a gelatino-silver chloride emulsion containing the pair of developing agents is treated for transfer similarly except that immersion is effected into a solution containing hypo, sodium hydroxide and sodium sulphite only. In Example 9 the developer of the invention contains high viscosity sodium carboxymethyl cellulose for " sandwich spreading between rollers. Numerous other 3-pyrazolidones, silver precipitants, nuclei forming materials, and silver halide solvents are quoted. Specifications 757,271 and 767,705 [Group IV(b)] are referred to. Reference has been directed by the Comptroller to Specification 542,502.
Patent GB-412420-A (GB)
Title: Improvements relating to shirts and like garments
IPC: A41B1/06
Filed: 1933-07-14
Abstract: 412,420. Shirts. STOCKS, D., and STOCKS, D. M., 1, Wester Coates Terrace, Edinburgh. July 14, 1933, No. 19917. [Class 141.] Relates to a shirt provided with a blouse or body part 1 overlapping a skirt part 2 to which it is attached at points 3, 4, 5, 6, leaving spaces for the passage of the braces, which are masked by the blouse part, and consists in a construction in which a belt 8 is provided to be secured at the front by fastenings. To obtain adjustment, a plurality of stud holes are provided capable of registering with one another and with a suitable stud. In the rear, a strap 12 connects the body part 1 with the skirt part 2.
Patent GB-244047-A (GB)
Title: Improvements in or relating to the "self-hooping" of metal tubes
IPC: B21C37/15
Filed: 1925-08-07
Abstract: 244,047. Schneider et Cie. Dec. 4, 1924, [Convention date]. Physical or molecular structure, altering by mechanical treatment.-In apparatus for producing looping effects in strong tubes by hydraulic pressure, the pressure fluid being introduced in the annular space between a mandrel and the inner surface of the tube; the joints between the mandrel and tube are made tight by a second fluid-pressure system which is independent of the hooping pressure. The mandrel G within the tube A is provided with joints G<1>, G<2> which are compressed against collars H<1> &c. on the mandrel by means of a piston F having an annular rod F<1> engaging the joint G<1>. The cylinder E which encloses the piston engages a cross-head C connected by rods D to a cross-head B provided with a collar I engaging the joint G<2>. The hooping effect may be varied along the tube by inserting the joint G<1> between different pairs of the collars H<1> &c. and progressively varying the hydraulic pressure which is introduced by a duct g in the mandrel, and the piston-rod F<1> may be made in sections so as to be adjustable in length. A second duct g<1> is connected to a pressure gauge K. The piston F may be operated hydraulically or pneumatically. Specifications 125,907, 126,914, [Class 122 (iii), Steam-engines, Kinds &c.], 132,157, 133,935, and 214,119 are referred to.
Patent GB-258056-A (GB)
Title: Improvements in tooth brushes
IPC: A46B7/04
Filed: 1925-08-08
Abstract: 258,056. Matz, M. Aug. 8, 1925. Reversibbe handles with dovetail fixing members.-In a tooth brush of the kind having the handle removable from the head and attachable thereto in two positions at right-angles to each other the head is provided with two interacting dovetail or undercut slots and the end of the handle is shaped to bind frictionally when forced into either of them. The dovetail slot 8 extends longitudinally from end to end of the brush head 7 and is intersected by the transverse slot 9, the end 11 of the handle 10 being tapered for securing it in either of the slots. In the modification, shown in Fig. 6, the intersecting slots 13, 14 extend only partly across the brush head 12, and the end 16 of the head is reduced in thickness to feel more comfortable when placed in the mouth.
Patent GB-649200-A (GB)
Title: Improvements in or relating to circuits for electrical interrupters
IPC: H02M7/62
Filed: 1948-07-27
Abstract: 649,200. Converting. ERICSSON TELEPHONES, Ltd., DISTIN, L. S., and WILMAN, C. V. July 27, 1948, No. 19988. [Class 38 (ii)] In a converting circuit in which a load R1 is supplied with A.C. of substantially rectangular wave-form from a D.C. source through interrupter contacts VB1 and VB2, a suitably tuned condenser-inductance series combination C1, LA is connected in parallel with the load so as to produce the rectangular wave from alternating intermittent half cycles of approximately sinusoidal form in the output from the interrupter. The tuned combination may have a natural frequency about 50 per cent higher than the frequency of the interrupter contacts. In Fig. 2 where lines E and F represent the times of closing of the interrupter contacts up and down respectively, A represents the current needed in the primary of the transformer TRA to produce a rectangular waveform in the secondary. The transformer has an ungapped core of silicon-iron in which the remanent flux is about 80 per cent of the maximum flux. Current A is the algebraic difference between the current D having somewhat sinusoidal peaks passing through the interrupter contacts and current B flowing through the C1, LA combination. In the first part of each halfcycle the tuned combination takes current from the supply and in the second part it feeds current to the transformer. The condenserinductance combination may alternatively be connected in parallel with the load on the secondary side of the transformer, Fig: 3 (not shown). One combination may be connected for no-load conditions and additional ones with load. Various alternatives such as omitting the transformer or replacing it by an autotransformer are referred to.
Patent GB-427238-A (GB)
Title: Zinc base alloy
IPC: C22C18/04
Filed: 1934-07-07
Abstract: A zinc alloy contains 1-15 per cent of aluminium, 0,005-0,45 per cent of magnesium, and 0,005-0,5 per cent of nickel, with or without up to 0,4 per cent of copper, the balance being zinc of at least 99,98 per cent purity preferably not containing more than 0,003 per cent of lead, 0,003 per cent of cadmium, and 0,001 per cent of tin.  British Specifications 252,020, [Class 82 (i)], and 340,104, and U.S.A. Specification 1,663,215 are referred to.