baber/WOPTO huggingface dataset:
Patent GB-139871-A (GB)
Title: Improvements in screen plates and films for color photography
IPC: G03C7/06
Filed: 1919-02-21
Abstract: 139,871. Smith, E. B. Feb. 21, 1919. Colour photography, screen plates for. - In a process for making screen plates or films for colour photography, the coloured threads b of celluloid are wound upon bobbins a and guided by combs d, d<1> on to the base, which may be a film e. The base and the threads are drawn between pressure rollers j, by which the threads are flattened so as to give a flat surface parallel to the base. A solvent or liquid celluloid or other suitable material is supplied by the hopper i to cause the threads to adhere to the base e; or, alternatively, a film e<1> may be superposed on the threads and an adhesive supplied by a hopper i<1>. To facilitate subsequent mechanical registration, a wide band is formed along one or both edges of the plate or film and thicker or thinner than the thickness of the colour screen, so that in registering two plates or films, the thicker bands on one screen will abut against the edge of the filaments forming the other screen.
Patent GB-621313-A (GB)
Title: Improved method of welding moving blades to the rotor of axial flow turbines, compressors or similar engines
IPC: F01D5/30
Filed: 1947-02-17
Abstract: 621,313. Making turbines. ABBEY, A. (Svenska Flygmotor Aktiebolaget). Feb. 17, 1947, No. 4559. [Classes 83 (ii) and 83 (iv)] [Also in Group XXVI] Uniting by fusion.-In making axial flow turbines, compressors, or the like, the rotors are provided with a separate recess for the root of each blade, weld metal being applied to the spaces left in the recesses between the walls thereof and the sides of the blade. The rotor 1 may be provided with a number of closed recesses 2 similar in shape to the blades 3 which may be hollow and weld metal 4 applied by an arcwelding electrode 5 to the recesses. The recesses may alternatively consist of grooves across the rotor open at one or both ends, the weld metal projecting from the lateral face of the rotor being turned off or otherwise removed after welding. The recesses may be bounded by parallel straight lines.
Patent GB-1535821-A (GB)
Title: Elastic rotational couplings
IPC: F04C15/00
Filed: 1976-02-05
Abstract: 1535821 Universal joints SOCIETE GENERALE DE MECANIQUE ET DE METALLURGIE 5 Feb 1976 [5 Feb 1975] 04596/76 Heading F2U In a resilient shaft coupling, two similar rigid hub members 3, 4 are partially embedded in an elastic body 5, and each hub member comprises a base plate 8 and an end plate 9, joined by a shaft portion 10, the shape being such that an inwardly-extending bead of elastic material becomes engaged in an annular groove 11 between walls 8a and 9a, from which groove the bead cannot escape under the action of relative forces in the coupling during use, and each end plate 9 is also recessed so as to have radial notches 15 into which the elastic material extends. These notches may be of such a shape that the projections 14 between the notches become wider radially outwards, and there may be four such projections, forming the shape of a Maltese cross.
Patent GB-1024456-A (GB)
Title: Ferrite composition and method of preparation
IPC: C04B35/26
Filed: 1964-02-04
Abstract: 1,024,456. Magnetic compositions and structures. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 4, 1964 [Feb. 4, 1963], No. 4677/64. Heading H1H. A ferrite of predominantly spinel structure includes iron, manganese, copper, at least one of germanium and titanium, and at least one of zinc and cadmium, and has the formula:- where x+y+z+a+b+c+d+e+f+g+h=3 The ferrite may be used in magnetic core stores of the kind in which blobs of ferrite are formed on a; matrix of crossed wires.
Patent GB-765530-A (GB)
Title: A method of manufacturing laminated heat-insulating sheets
IPC: B32B27/00
Filed: 1955-02-16
Abstract: 765,530. Making insulating sheets. AKTIEBOLAGET ISOFLEX. Feb. 16, 1955 [Feb. 17, 1954], No. 4693/55. Class 83 (2). [Also in Groups V and VIII] Metal foils to be used in making insulating sheets consisting of superposed corrugated foils glued together with the corrugations crossing are cut into parallelograms 6 which are corrugated by running over them a heated ribbed roller 3 while they are laid on a correspondingly grooved, heated table 1. After corrugation, the sheets form rectangles with corrugations running at 45 degrees to the sides, and are adhered together in superposition with the corrugations crossing in adjacent layers.
Patent GB-619957-A (GB)
Title: Rectifier circuit frequency multiplier
IPC: H03C1/16
Filed: 1946-02-14
Abstract: 619,957. Frequency changing. TRIGGS, W. W. (Farnsworth Television & Radio Corporation). Feb. 14, 1946, No. 4705. [Class 38 (ii)] [Also in Group XL (c)] In a frequency doubler or quadrupler of the type in which the harmonic output is derived from the combined output of a first full wave rectifier fed directly with the fundamental frequency and a second full wave rectifier fed with the fundamental frequency through a 90 degrees phase-changer the output is modulated or controlled in amplitude by varying the conducting angle of the rectifiers. In the doubler circuit of Fig. 1 the fundamental frequency is applied through leads 6, 7 to the full wave rectifier system 10 and also to 90 degrees phase-changing network 18 followed by an oppositely-arranged rectifier system 21. Input circuits 3, 4 and 15, 16 are tuned to the fundamental frequency and the outputs of the rectifier systems are connected to one end of second harmonic tuned output circuit 26, 27. Modulation of output control is effected by varying the conduction angle of the rectifiers either by applying the modulation signal or control voltage across resistance 20 or by means of a transformer in series with leads 8, 19 connecting the centre points of the rectifier circuits. Alternatively if the two-electrode rectifiers are replaced by triodes the modulation voltage may be applied to the triode grids. In an alternative multiplying arrangement, Fig. 4 (not shown), a similar result is achieved by reversing rectifiers 21 and connecting the outputs of the two systems to opposite ends of the second harmonic tuned circuit. If in the reversed rectifier circuit the outputs are connected to the opposite ends of the circuit 26, 27, Fig. 5 (not shown), an output at the fourth harmonic is obtained.
Patent GB-141158-A (GB)
Title: An improved attachment for scissors and the like for use as a guard and support for the material being cut thereby
IPC: B26B13/22
Filed: 1919-02-25
Abstract: 141,158. Cole, F. J. Feb. 25, 1919. Scissors. - A detachable guard adapted to be applied to the lower blade of a pair of scissors, for supporting the fabric &c. being cut in advance of the blades, comprises a plate a having a clip portion c, c<1> to grip the scissors blade, and a portion a<1> which extends forwards and upwards from the clip portion and either itself constitutes the guard or has a loop b of wire fixed to it for that purpose. The plate is cut or stamped from sheet metal and may be corrugated at d to give additional strength.
Patent GB-1205531-A (GB)
Title: Additives for hydraulic cements
IPC: C04B24/12
Filed: 1969-01-28
Abstract: 1,205,531. Grinding cement. WEST VIRGINIA PULP & PAPER CO. 28 Jan., 1969 [2 Feb., 1968], No. 4749/69. Heading C1H. 0.005 to 1 wt. per cent of an additive mixture comprising a water-soluble polyol and a watersoluble salt of formic, acetic or propionic acid in a ratio between 1: 20 and 20: 1 by weight is added to Portland cement clinker as a grinding aid and to serve as a pack-set inhibitor. Suitable water-soluble salts are those of sodium, potassium, alkaline earth metals, ammonia, aluminium, cobalt and iron. Suitable polyols listed are diols, reaction products of ethylene with propylene oxide or of polyethylene glycols or polypropylene glycols with polyalcohols, polycarboxylic acids, polyamines, or polyphenols, glycerol and its ethylene or propylene adducts, pentaerythritol, mannitol, sorbitol, polyglycols of ethylene, propylene or butylene. The additive can also include triethanolamine, watersoluble salts of sulphonated lignin and urea.
Patent GB-229100-A (GB)
Title: Method and apparatus for the production of preserves of fruit or vegetables of unlimited durability
IPC: A23B7/022
Filed: 1924-02-25
Abstract: 229,100. Faitelowitz, A. Feb. 25, 1924. Preserving fruit and vegetables.-Fruit and vegetables are dried to a paste consistency in open vessels at a temperature not exceeding 80‹ C., being continually agitated by means of rollers. The apparatus may consist of tables 1, 2, 3, a water tank 5 beneath the lowest table 3 being heated by a steam coil, and the steam thus generated passing by a pipe 6<a> to boxes beneath the tables 1 and 2. Rollers 8 are carried by arms 9 on a travelling frame 7 and can be brought down on to the tables by means of a handle 11. The rollers 8 are made in sections loosely mounted on spindles so as to accommodate themselves to inequalities in the tables. The frame 7 also carries scrapers 12 on arms 13. In place of treating the whole fruit the fructose and acids may be extracted by alcohol, concentrated as described, and mixed with the residue from the extraction.
Patent GB-270031-A (GB)
Title: Lids for teapots, saucepans and other vessels
IPC: A47J36/12
Filed: 1926-02-19
Abstract: 270,031. Edson, G. Feb. 19, 1926. Lids and covers.-A hinged cover for a teapot, saucepan, or other vessel having an internally or externally beaded edge at the mouth, comprises a springy metal rim C of the appropriate channelled or grooved section to engage the bead, the hinge plate E<2> carrying the lid E being secured to the rear portion of the rim. A projection E<1> for raising the lid may be provided thereon. The lid portion covers the entire mouth of the vessel, but a gap is left between the two arms of the rim to provide a pouring place.
Patent GB-565544-A (GB)
Title: Improvements in or relating to sliding caliper gauges
IPC: G01B3/20
Filed: 1943-03-24
Abstract: 565,544. Calliper gauges. URQUHART PARKER & TAYLOR, Ltd., and PARKER, S. J. March 24, 1943, No. 4782. [Class 106 (ii)] A calliper gauge comprises a body portion 10 having a groove in one face in which slides a scale 11 held in position by plates 12 and a clamping screw 13, a fixed jaw 14 on the body portion and projecting at right angles to the scale and a work contacting disc 16 secured to the end of the scale by a screw. The disc 16 has a radius appreciably less than the length of the jaw 14 and is bevelled towards its workcontacting surface 18 so that,it has a negligible thickness at its periphery. The surface 18 is flat and parallel to the operation face 19 of the jaw 14.
Patent GB-291391-A (GB)
Title: Improvements relating to the rotary drilling of bore holes and the like
IPC: E21B19/08
Filed: 1928-02-16
Abstract: 291,391. Godet, R. June 1, 1927, [Convcntion date]. Borehole apparatus.-Apparatus for the rotary drilling of boreholes &c. comprises a drill stem T suspended from a cable C, one end of which is secured as to a dynamometer D, while the other end is connected to a weight G or a frictional resistance, whereby constant tension is maintained in the cable; the drill stem T has a threaded or other helical connection to an integral' or divided member E which is held against axial movement in the rotary table M, the member E communicating rotation to the drill while the helical connection causes an automatic reduction in the rate of descent of the bit when the resisting torque increases through the bit passing from a soft to a hard strata.
Patent GB-675175-A (GB)
Title: Improvements in and relating to high frequency electron discharge devices of the magnetron type
IPC: H01J25/58
Filed: 1948-02-25
Abstract: 675,175. Magnetrons. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 25, 1948 [June 23, 1945], No. 4929/48. Addition to 675,176. [Class 39 (i). In a magnetron as described in the parent Specification an axially movable tuning member is supported at a distance from the anode structure by a hub-like member of ferromagnetic material. As shown, a tuning disc 42 is axially movable between the arms 32, 33 and the loops 36 of the tubular L-shaped anode sections 31. Trapezoidal members 37 secured to the loops 36 co-operate with the tuning disc 42. The tuning disc 42 is supported from a ferromagnetic hub 53 which is actuated by means of a threaded bushing 48. The cathode supply leads 13, 18, 19 are of ferromagnetic material and are shaped in cross-section as shown in Fig. 3. Members 28, 29 also form part of the magnetic circuit. Cooling fluid is circulated through the tubular anode sections and also through the ferromagnetic hub 53. A getter 80 is supported in a side tube of the envelope.
Patent GB-944751-A (GB)
Title: Improvements in or relating to cam systems for flat knitting machine
IPC: D04B15/36
Filed: 1961-02-10
Abstract: 944,751. Cam systems for flat machines. A. BELZ. Feb. 10, 1961 [Feb. 12, 1960], No. 4971/61. Heading D1C. The reciprocable carriage of a flat machine has a disc cam 3, with tracks 4, 5, locatable in any one of five positions to move needle cams 9, 10, 11 which have pegs 6, 8 and 7 located in the tracks 4, 5. The carriage has fixed cams 15,16 and a pivotable cam 20. The cam 11 is spring loaded to bias it as shown in Fig. 4 and the path of the needle butts on sliders is shown by chain-dot lines in Figs. 2 to 6 (Figs. 3, 5, 6 not shown).
Patent GB-1486483-A (GB)
Title: Apparatus for the production of hollow confections provided with centre fillings
IPC: A23G3/20
Filed: 1975-02-05
Abstract: 1486483 Moulding confectionery AUGUST STORCK KG 5 Feb 1975 [16 July 1974] 4976/75 Heading B5A Hollow confections with centre fillings are produced in apparatus comprising transversely spaced rows of cup-shaped centrifugal moulds 5 mounted on an intermittently driven chain conveyer 1 for rotation about their vertical axes after receiving a metered charge, e.g. of chocolate. Each mould has a depending stem 14 rotatably mounted in a holder 4 and carrying a clutch member 16a, 16b which, at a mould spinning station B, is located above a driven clutch member 21 on a holder 27 whereby when the holder is raised, e.g. by a cam mechanism the clutch members are brought into engagement. The member 21 is supported by a slide 28 Fig. 5 displaceable slightly in the conveying direction of the moulds so that the clutch members are brought into axial alignment on engagement. At the station B two transversely extending rows of moulds are rotated by a drive which allows the said movements of the clutch member's arranged in pairs, each pair being carried by a slide 28. Each member 21 is axially slidable on a driving spindle 24, Fig. 2, with a collar 25 and drive pins 35. Radial slots in the member 21 receive radial ribs of the clutch member 16a 16b. The bottom end of each spindle 24 is connected by a crank coupling 36, Fig. 5, to a drive shaft 37; the latter are geared together by pinions 39 driven by an intermediate gear engaging a main gear driven by a motor through a universal joint shaft. The apparatus of Fig. 1 includes means 6-9 supplying, respectively, to two rows of moulds, an oil spray, a metered charge of chocolate, a filler such as nuts, raisins and a covering material. The filled moulds pass through a cooling chamber 10 in which the confections are ejected from the inverted moulds by means 11 which depresses ejector pins 17, 19, Fig. 2. The empty moulds then traverse a heating chamber 13.
Patent GB-139605-A (GB)
Title: Improvements in or connected with bulkheads and like parts of ships
IPC: B63B3/56
Filed: 1919-02-27
Abstract: 139,605. Armstrong, Whitworth, & Co., Sir W. G., and Hope, F. Feb. 27, 1919. Bulkheads are constructed of a number of plates each of which is bent into a trough-like shape uniform in cross-section. In one form, a single plate A is flanged in four places, making a complete trough, the various plates being then united at their edges F and arranged either vertically ur horizontally. They are further connected to angle-pieces bent to follow the form of the plates. In another form, the plates are only bent twice and then united with the hollow parts alternately in opposite directions.
Patent GB-181425-A (GB)
Title: A portable wheel moulding machine
IPC: B22C13/02
Filed: 1921-02-14
Abstract: 181,425. Bury, C., and May, R. Feb. 14,1921. Woulding-machines for gear-wheels comprise a spindle 1 carried by a support 2 embedded in the moulding-floor and provided with a radial-arm 4 reciprocable, as controlled by a collar and an adjustable stop 9, by means such as the lever mechanism shown. The pattern segment is radially adjustable on the arm. A V-notched dividing-plate 11 is provided. According to the Provisional Specification the lever mechanism may be replaced by a rack and pinion or by a screw, and the plunger coacting with the dividing- plate may be controlled by a screw.
Patent GB-829632-A (GB)
Title: Synthesis of steroids
IPC: C07J5/00
Filed: 1956-02-17
Abstract: The invention comprises a steroid of the D 1-allopregnene, D 6-allopregnene, D 1,4-pregnadiene or D 4,6-pregnadiene series which has a 9a -halo group and which has a b -hydroxy or keto substituent in the 11-position and a process of preparing said steroid by reacting the corresponding saturated allopregnane derivative with at least one mole. of bromine and dehydrobrominating the compound thus formed.  Bromination may be effected with bromine in a solvent, e.g. acetic acid or dimethyl formamide, to produce a 2-bromo or 2,4-dibromo derivative. Dehydrobrominatio may be effected by heating the steroid in the presence of an organic base, e.g. collidine, or by treating with a lithium halide, e.g. lithium chloride, in a solvent, e.g. dimethyl formamide.  The 9a -bromo and 9a -iodo steroids are preferably prepared indirectly from the corresponding 9a -chloro 11b -hydroxy compound through the 9a ,11b -oxide intermediate compound. Examples describe the preparation of 9a -fluoro- and 9a -chloro- D 1-allopregnene - 11b ,17a ,21 - triol - 3,20 - dione - 21 - acetate, 9a  - fluoro- and 9a  - chloro - D 1 - allopregnene 17a ,21 - diol - 3,11,20 - trione - 21 - acetate, 9a  - fluoro- and 9a  - chloro - D 1,4 - pregnadiene - 11b ,17a ,21 - triol - 3,20 - dione 21 - acetate, 9a  - fluoro- and 9a  - chloro - D 4,6-pregnadiene - 11b ,17a ,21 - triol - 3,20 - dione - 21 - acetate, 9a  - bromo- and 9a  - iodo - D 1-allopregnene - 11b ,17a ,21 - triol - 3,20 - dione and related compounds.  Specifications 792,223, 792,224 and 829,633 are referred to.
Patent GB-139610-A (GB)
Title: New or improved machine for wrapping caramels, sweetmeats, bars of soap, or the like
IPC: B65B11/14
Filed: 1919-03-01
Abstract: 139,610. Heath, F. March 1, 1919. Packeting by wrapping-up. - Relates to machines for wrapping caramels, sweetmeats, bars of soap, &c. in paper or foil, and particularly to (1) means for feeding and cutting the paper to the proper length and for feeding the article and the paper to an intermittingly rotated conveyer in which the article or blank is wrapped on all four sides, and (2) means for twisting up the projecting ends of paper or, alternatively (3) for folding them against the ends of the blank (1). The articles or blanks are fed along a guideway, such as a trough 1, Fig. 1, containing an endless belt 2, at right-angles to which is a main guide 12 containing two pushers 13, 16 for deliver-. ing the blank and the paper to the conveyer 50. The paper is fed from a web by inter mittingly rotated feed-rolls 33 which are grooved to permit the passage between them of vertically reciprocated guide-wires operated by a rack-bar 27. On the ascent of the guide-wires, the paper is cut by fixed and movable knives. The con veyer comprises a shaft 51 which is intermittingly rotated through half a revolution and carries a frame 56, Fig. 8, supporting four rods 60, 61 around which passes an endless belt 66. The belt is clamped to the ends of a sliding rod 63 the movement of which forms a pocket at either side of the device for the reception of the blank. The pusher 13, which has at its forward end wedge-shaped members 19, carries the severed paper against the conveyer and, pushing back the endless belt 66, inserts the paper into the pocket so formed. The blank is then pushed into the pocket by the second pusher 16, and is thereby wrapped on three sides. The rotation of the conveyer presents the blank opposite to a delivery guideway 72, into which it is expelled when the succeeding blank is inserted into the conveyer. During rotation of the conveyer, the fourth side of the paper is folded down by an inclined plate 112. (2) While the blank is in the guideway 72, the projecting ends of paper are twisted up by pairs of jaws 78, 79, Fig. 11, pivoted to shafts 80 which can slide in their bearings. The jaws are opened and closed by sleeve members 83 sliding on the shafts 80, and the shafts are moved towards each other, during the twisting, to compensate for the shortening of the ends of paper. (3) The folding-mechanism, which may be alternatively employed, comprises a pair of pivoted fingers 113, Figs. 14 and 18, which are operated by a lever 116 and are moved inwardly on their descent so as to fold down the upper projecting portions of the paper. The front and rear sides of the paper are folded down by fingers 126 operated by an eccentric 124 and by oscillating wipers 129 respectively. The downwardly projecting folded edges are bent up to an horizontal position by fixed plates 140, 141, as the blank moves along the guideway, and are folded up against the ends of the blank by pivoted members 142. The ends of the wrapped blank are finally pressed by pivoted spring plates 150.
Patent GB-705500-A (GB)
Title: Improvements in or relating to television-cinematograph apparatus
Inventor: JESTY LESLIE CONNOCK
IPC: H04N5/84
Filed: 1950-02-28
Abstract: 705,500. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 18, 1950 [Feb. 28, 1950], No. 5106/50. Drawings to Specification. Class 40 (3) In an arrangement for recording interlaced television pictures upon intermittently moving film, wherein the film pull-down, which occurs once per complete picture, occupies a greater time than the frame blanking interval so that certain lines from each picture are not recorded, means are provided for effectively doubling the lines of one frame recorded upon the film over those portions thereof where the lines of the other frame of the interlaced pair are lost. The doubling of the lines may be effected by optical means; in a preferred embodiment however a transverse "wobble" of suitable amplitude is applied to the scanning lines. A blanking signal is applied to the recording cathode-ray tube to cover the film pull-down time, while during the portion of the picture interval in which lines of both frames are recorded a blanking signal at the "wobble" frequency is applied to the cathode-ray tube so that the visual effects of the " wobble " are suppressed and a single line effectively results. In a modification the " wobble " is applied only over the parts of the picture from which lines are lost, and a D.C. shift is superimposed upon the wobble oscillation to effect a vertical shift corresponding to one half of a line width to prevent the appearance of a gap between thoses portions where the line-doubling occurs and those portions where it does not. Brightness compensation is provided by increasing the video signal amplitude over the latter portions of the picture. The waveform of the wobble is preferably rectangular ; it may altertively be sinusoidal or sinusoidal with a third harmonic component added. Specification 638,443 is referred to.