baber/WOPTO huggingface dataset:
Patent GB-238564-A (GB)
Title: Improvements in photo-electric cells
IPC: H01J40/16
Filed: 1925-08-14
Abstract: 238,564. Telefunken Ges. f³r Drahtlose Telegraphie, and Bronk, O. von. Aug. 14, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Vacuum tubes.-A photoelectric cell consists of a vacuous or gas-filled vessel containing an electrode K coated with selenium, and a heated filament F. The filament may form the cathode and the electrode K the anode, or a third electrode A may be connected as the anode and the electrode K as cathode. The filament mav be connected with the electrode K. Conical electrodes may be provided. The filament may consist of a material such as an oxide or thorium emitting electrons below incandescence, and may be of V-shape or formed of two parallel filaments so as to minimize the effect of shadow on the electrode K. The gas filling may be argon or neon.
Patent GB-154314-A (GB)
Title: Improvements in and relating to hand trucks and the like
IPC: B62B1/10
Filed: 1919-08-22
Abstract: 154,314. Lever Bros., and Molyneux, B. J. Aug. 22, 1919. Hand-trucks. - The curved handles 7 of a hand-truck which are formed integral with the side-members 1, 2 and act as supports for the truck, are strengthened by metal flitch plates 8 arranged on edge and extending a short distance down the side members. The plates 8 may be applied on either side of the handles, but are preferably embedded in the handles as shown. The usual load-rest 5 is provided, and plates may extend therefrom down the upper faces of the side members 1, 2.
Patent GB-316968-A (GB)
IPC: C03B13/12
Filed: 1929-07-05
Abstract: 316,968. Schlesische Spiegelglas- Manufactur C. Tielsch Ges. Aug. 7, 1928, [Conventicn date]. Rolling.-A process for making wire glass of the kind in which the reinforcing wires are parallel with one another consists in forming two sheets of glass by means of a duplex doubleroll machine, rolling the two sheets together to form a single sheet, and feeding the wires between the two sheets just before they are united. The two sheets w, w<1> are formed from masses o, o<1> of molten glass by means of rollers r, s and r<1>, s<1>, respectively. The sheets w, w<1>, as they emerge from between the rollers, pass over tables q into the pass between rollers t which press the sheets together to form a single sheet z. The wires b are wound on reels a and are fed downwards by a grooved roller c. Spring-actuated rollers f hold the wires in the grooves d of the feed roller. The wires then pass downwards through tubes h, i, k and are cut off, when necessary, by shears m. The wires issue from the tubes k and pass between the rollers t and are thus embedded in the finished sheet z. The tubes guide the wires and ensure that they enter the glass parallel with one another. The tubes k telescope on the tubes i and can be adjusted to direct the wires correctly between the two sheets,
Patent GB-218518-A (GB)
Title: Improvements in temperature regulating apparatus for incubators and the like
IPC: G05D23/02
Filed: 1923-08-15
Abstract: 218,518. Hopkins, V. G. Aug. 15, 1923. Wick-operating devices; extinguishing wick burners. - In apparatus for automatically regulating the temperature of incubators &c. of the kind in which the flame of a gas or wick burner is raised or lowered in accordance with the temperature in the incubator, one portion of the control mechanism is disengageable from the other portion so that the lamp flame is permanently lowered or extinguished when the temperature reaches a predetermined maximum. In the construction shown the disengageable portion of the mechanism immediately regulating the flame comprises a counter-weighted rotatable spindle f, Fig. 3, mounted in fixed plates b on the top of the incubator a and connected by a lever g and rod i to the flame regulator. Normally a capsule or other form of thermostatic element in the incubator acting through the medium of an adjustable rod e, Fig. 4, an adjustable pivoted plate c, and a, series of two or more pivoted plates n<1>, n<2> fitted with anti-friction rollers actuates a lever l, m clamped to the spindle f, so as to vary the lamp flame. When, however, the temperature exceeds the predetermined maximum, a pivoted tripping-lever q is disengaged from a stop p<1> mounted on a collar p carried at one end of a pivoted lever o, thus allowing a spring p<3> to rotate the lever o into contact with the lever l, m, and effect a permanent lowering or extinction of the lamp flame. In the case of a wick burner the head of the wick regulator is connected to the rod i by a plate j, Fig. 6, slotted in two different planes to receive the head and shank of the regulator and provided with a set screw k for gripping the head. In addition to the flame regulating mechanism the incubator may be provided as shown in Fig. 4 with the usual lever and damper r controlling the flow of hot gases from the lamp chimney.
Patent GB-1042964-A (GB)
Title: Improvements in or relating to electric couplings
Inventor: MCCOLL ALEXANDER JOSEPH
IPC: H01R11/09
Filed: 1963-05-24
Abstract: 1,042,964. Couplings. E. K. COLE Ltd. May 25, 1964 [May 24, 1963], No. 20745/63. Heading H2E. An electric coupling which remains secure under varying temperature conditions comprises two parts A and B, which are held in engagement by a single screw or bolt 1, which exerts a vertical force and an indirect horizontal force through the bent-over ends 3 of part A. Elements 4 and 5 of storage heaters are welded into conducting sleeves, each sleeve having an extension, the extension of B forming a channel-shaped member having apertures 8. and the extension of A forming a bifurcated tongue of slightly smaller width than the channel member, the forks 2 having bent-over ends 3 which fit into the apertures 8. The bolt 1 passes through the part A and into the part B. A lock-nut 7 may be provided, and the end of the bolt may be burred over. Tightening of bolt 1 exerts a vertical force causing an electrical connection between engaging faces in a horizontal plane, while the screw pressure causes the inclined surface of the ends 3 to press against the edges of the apertures 8, i.e. to exert a force having a horizontal component.
Patent GB-478969-A (GB)
Title: Improvements in or relating to the manufacture of knitted fabric and articles and loop transferring instruments employed therein
IPC: D04B35/02
Filed: 1936-07-27
Abstract: 478,969. Knitting-machines. M. B.C. VENDORS, Ltd., BROMLEY, T. C., and SHORTLAND, A. July 27. 1936, No. 20751. [Class 74 (ii)] A loop-transferring instrument 1 is strength. ened by providing two or more waves 11, undulations or the like extending along its length. The pointed end 2 leads to a loop engaging shoulder 4. The needle 10 with which the instrument 1 co-operates may be provided with a‹groove 12 to receive the pointed end 2. The needle tricks 9 in the cylinder may be made wider so that a needle and instrument may slide in the same trick, and projecting pieces 19, 19<1> may be provided for supporting the parts of the needles and instruments outside the tricks. Butts 15 may be provided projecting rearwardly of the needles to engage in short grooves 16 formed in the needle bed above the tricks 9. Specification 401,448 is referred to.
Patent GB-1146623-A (GB)
Title: Improvements in or relating to power semiconductor devices
IPC: H01L23/367
Filed: 1966-05-11
Abstract: 1,146,623. Semi-conductor rectifiers. CKD PRAHA OBOROVY PODNIK. 11 May, 1966 [15 May, 1965], No. 20796/66. Heading H1K. A power semi-conductor device comprises a planar semi-conductor element 1 between a base electrode 2 and a second electrode 5 forming the upper part of the casing, the two electrodes having fins 6 for cooling and being interconnected by insulating cylindrical member 9 attached resiliently (such as by flange 7) to one of the electrodes and the base electrode 2 carries a sleeve 10 with insulated guide 11 which slidably encompasses a cylindrical portion 4 of the second electrode; thus axial relative movement between the electrodes is possible. In a second embodiment, pressure contact between the second electrode and the semi-conductor is provided by a plate spring (14, Fig. 2, not shown), and a third control electrode to the semi-conductor is provided by two cylinders (18 and 17) connected by spring (19) positioned in a central cavity in the second electrode.
Patent GB-613489-A (GB)
Title: Improvements in process and culture medium for the production of penicillin
Filed: 1946-07-12
Abstract: The method for the production of penicillin claimed in Specification 613,488 is modified by replacing the phenylacetyl hydrolysate or a salt thereof of the culture medium by a compound having the formula <FORM:0613489/IV(b)/1> and/or the salts and lower alkyl esters thereof, wherein R represents hydrogen or a methyl or ethyl radical and R1 represents a methyl or ethyl radical.  These compounds may be prepared by adding phenylacetyl chloride to an alkaline solution of the appropriate amine, filtering, acidifying and then purifying.  In examples: (1) N-phenyl acetyl valine is prepared from valine and the product resolved by means of brucine to obtain the l-derivative; (2) the methyl ester of N-phenylacetyl isoleucine is obtained from isoleucine methyl ester hydrochloride and (3) a -amino-n-butyric acid is converted to phenylacetyl a -amino n-butyric acid.  N-Phenyl acetyl b ,b -diethylalanine and the corresponding sodium, potassium, magnesium, ammonium and substituted ammonium salts are also specified.  Specification 586,930, [Group VI], is referred to.
Patent GB-770463-A (GB)
Title: Improvements in feed mechanism in textile fibre processing machines
Inventor: HUNTER WILLIAM ALDRED
IPC: D01G23/00
Filed: 1954-07-20
Abstract: 770,463. Fibre feeding apparatus. T. M. M. (RESEARCH), Ltd. July 20, 1955 [July 20, 1954], No. 21130/54. Class 120 (1). A fluted textile fibre feed roller 14 is provided in its surface with a plurality of axial grooves 142 of substantially greater depth and width than the flutes 143. A helical groove 144 may be machined along the outer surfaces of the lands 141 between the flutes. As shown, the roller co-operates with the pedals 12 of the lattice feed of a fibre opening apparatus such as that described in Specification 735,173.
Patent GB-219193-A (GB)
Title: Improvements in racket stringing
IPC: A63B51/08
Filed: 1923-08-21
Abstract: 219,193. Reeves, J. L. Aug. 21, 1923. Rackets.-A racket having a diagonal arrrangement of stringing is provided with one or more double centre mains d'. The neck of the racket may be strengthened by a strip e extending up the inner edge. In a modification, extra strings may be substituted for the double mains.
Patent GB-888846-A (GB)
Title: Improvements in supports for folding covers and the like
IPC: E04H15/32
Filed: 1958-07-02
Abstract: 888,846. Folding covers. LAW, R. F. July 2, 1959 [July 2, 1958], No. 21176/58. Addition to 851,477. Class 20(1) The folding cover of the parent Specification which comprises inverted U-shaped frames supporting covering material and pivoted at their ends to two base supports is modified by making each frame in two or more parts and by joining the two base supports with a detachable bar 10. The frames are made of two or three sections jointed by a sleeve 4 and a spigot 3 which may incorporate a hinge over which the sleeve may slide.
Patent GB-780834-A (GB)
Title: Improvements relating to combustion equipment for gas-turbine engines
Inventor: JOHNSON FRANCIS MURRAY
IPC: F23R3/28
Filed: 1954-07-20
Abstract: 780,834. Burners. ROLLS-ROYCE, Ltd. July 7, 1955 [July 20, 1954], No. 21195/54. Addition to 731,609. Classes 75(1) and 75(3) [Also in Group XII] In the combustion equipment of the annular type of the parent Specification having an annular flame tube formed by inner and outer co-axial walls 12, 13 disposed within the annular space between coaxial inner and outer air casing walls 10, 11, the passage 16 for conveying the combustion air through the fuel injector assembly is of annular form and'the fuel supply means is arranged to produce on at least two surfaces of the fuel injector assembly layers of fuel in contact with the air flowing through the passage 16, the surfaces having spill lips at their downstream extremities whereby the airflow through the passage 16 assists in the atomization of the fuel flowing over the lips to produce inner and outer continuous annular sheets of atomized fuel. The annular passage 16 is formed between inner and outer coaxial walls 17, 18 supported by perforated strips 20 from the flame tube. A manifold pipe 24 is accommodated in the annular passage and has two sets of spaced orifices, one set 25 spraying fuel with a radial outward component on to the outer wall 18, the other set 26 spraying fuel with a radial inward component on to the inner wall 17. The fuel spreads out fanwise on the walls 17, 18 and flows therealong to spill from the sharp downstream edges thereof into the flame tube, the angle of spread being such that the layers are circumferentially continuous at the edges. The downstream portions of the walls 17, 18 may be parallel as shown or conical and converging towards one another in the direction of flow. A ring 27 for dividing the air stream entering the flame tube into two streams and for deflecting the outer stream outwardly and the inner stream inwardly is mounted adjacent the outlet end of the annular passage 16 and has an end portion 27a of divergent axial cross-section. The air streams atomize the fuel and form inner and outer conical sheets of spray, the outer spray diverging and the inner spray converging in the direction of flow. In a modification the fuel may be sprayed on to the surfaces of the air-dividing ring 27 to flow over the sharp edges 27b, 27c thereon. Pilot fuel nozzles for igniting or maintaining the main combustion may be mounted on the downstream face of the ring 27 and fed with fuel from a manifold supported on the upstream face of the ring.. The fuel/ air mixture may be swirled by curved strips disposed between the ring and the walls 17, 18. The fuel may be sprayed by nozzles each comprising two slots penetrating into one or two fuel ducts in the nozzle.
Patent GB-740237-A (GB)
Title: Improvements in extensible book cases or the like
IPC: A47B55/02
Filed: 1954-07-21
Abstract: 740,237. Shelves. OHLSON, K. L. July 21, 1954, No. 21242/54. Class 52(1). End supports S for shelves consist of three upright rods 1a, 1b, 1c arranged at the corners of a right-angled triangle and connected by wire struts 5 to form two panels at right angles to each other, the end supports being coupled by the shelves 6, which preferably have hooked ends and can engage either the horizontal or the sloping struts. Sleeves 2 with rubber feet 3 may be provided and similar sleeves can couple superposed supports. The supports S may be common to a plurality of shelves in alignment or at right angles to each other.
Patent GB-230727-A (GB)
Title: A machine for lifting and transporting cocks of hay or like material
IPC: A01D87/12
Filed: 1924-09-10
Abstract: 230,727. Carthy, J. Sept. 10, 1924. Overhead supports.-A machine for lifting and transporting cocks of hay &c. comprises a frame consisting of three inclined bars connected together at the top and spread apart at the base, raising and lowering means connected to the top of the frame, and means for moving the frame over the ground. Two of the inclined bars 1 are provided with wheels 2 and the third 3 with a shoe or skid 4 and a draught appliance 12. The bars 1, 3 are braced by bars 13 arranged so that the frame may be placed over the cock to be lifted. The lifting-tackle is connected to an extension 8 of the bar 3 and consists of grappling- irons or hooked blades 6 adapted be pushed under the cock and to be raised by means of a rope 9 passing over sheaves 7 and a flexibly mounted pulley 10 and connected to a whipple-tree 15 or other operating means.
Patent GB-1195103-A (GB)
Title: Improvements in Index Sheets for Filing in Document Loose-Leaf Binders.
Inventor: LENNARTZ WALTER
IPC: B42F19/00
Filed: 1967-05-09
Abstract: 1,195,103. Document covers; index tabs; index cards. W. LENNARTZ. 9 May, 1967 [13 May, 1966], No. 21459/67. Heading B6E. An index card made from a transparent, extruded, synthetic thermoplastic lay-flat tube, having reinforced longitudinal marginal edges 3, 4, Fig. 1, along one of which extend filing perforations 5, is provided with an integral index tab 10 formed by cutting away a longitudinal strip along the marginal edge remote from the perforations and sealing the tube walls together along seams 11, 12, 14 in a single thermo-cutting and thermo-welding operation. The tab 10 is formed as a pocket receiving an index label 15. The perforations 5 are protected against obturation by a coloured identification strip which is inserted between the walls of the index card by provision of a welding seam 6, terminating in an arcuate portion 8. In another embodiment the index tab 20, Fig. 3, has its obverse side fluted by welded seams 16 and a small pocket 17 may be used for insertion of a coloured signal or the post of an index signal.
Patent GB-602816-A (GB)
Title: Improvements in or relating to cyanuric chloride
Filed: 1945-08-23
Abstract: Cyanuric chloride is prepared by passing cyanogen chloride over charcoal at a temperature above the boiling point and below the decomposition point of cyanuric chloride and recovering the resulting cyanuric chloride.  Preferably the charcoal carries a proportion of hydrogen chloride, one or more Group II metal chlorides or a mixture thereof.  The chlorides of calcium, magnesium, barium, strontium and zinc are specified.  The reaction may be effected by passing a predetermined amount of cyanogen chloride through a heated reaction chamber containing the charcoal, the reaction chamber being subsequently cooled and the product removed; alternatively, the unreacted cyanogen chloride may be returned to the reaction chamber with additional cyanogen chloride.  The cyanuric chloride may be prepared in a finely divided state by keeping the receiver for the vapours at a temperature between the melting point and boiling point of cyanuric chloride.  Temperatures of 205-405 DEG  C. are specified.
Patent GB-384948-A (GB)
Title: Improvements in and relating to television receiving apparatus
IPC: H04N3/08
Filed: 1932-07-30
Abstract: 384,948. Television receivers. SUDDEUTSCHE TELEFON-APPARATE-, KABELUND DRAHTWERKE AKT.- GES. TEKADE, (formerly SUDDEUTSCHE TELEFON-APPARATE-, KABEL-UND, DRAHTWERKE AKT.-GES.), 33, Nornenstrasse, Nuremberg, Germany. July 30, 1932, No. 21566. Convention date, Aug. 5, 1931. Drawings to Specification. [Class 40 (iii).] In a television receiver employing a mirror helix scanning device it is found that if B is the distance of the observer from the mirror helix and L the distance of the linear light source from the helix, 1/B + 1/L = constant. In order to reduce the dimensions of the linear light source or to increase the intensity of illumination without increasing the distance B, according to the invention the light source is placed within the focal distance of an optical system so that an enlarged virtual image is produced at a distance L. The optical system may be a cylindrical lens or mirror or a spherical lens- or mirror.
Patent GB-620412-A (GB)
Title: Improvements in urea formaldehyde resinous materials
IPC: C08L61/02
Filed: 1946-07-18
Abstract: A substantially non-crazing urea-formaldehyde resinous material comprises an admixture of a preformed urea-formaldehyde type resin and the condensation product of a ketone with formaldehyde, said condensation product having a viscosity of at least 30 poises at 25 DEG  C.  The preformed resin is a condensation product of urea and formaldehyde capable of being fully set by the addition of acidic substances.  The urea may in part be replaced by thio-urea guanidine, melamine, phenol or aniline.  The anti-craze property is increased by an increased molar ratio of formaldehyde to ketone, and with formaldehyde and acetone the preferred ratio is 5.5:1 to 7:1. Homologues such as methyl ethyl ketone have greater anti-craze properties than acetone.  60 parts acetone are condensed with 530 parts 37 per cent formaldehyde in presence of 7 parts NaOH at 80 DEG C. for one hour and the product vacuum distilled until the residue had a viscosity of 80 poises at 25 DEG  C.  The product is then mixed with 1000 parts urea-aldehyde resin obtained by reacting a mixture of 120 parts urea with 320 parts 40 per cent formaldehyde, adjusted to a pH of 9.5-10 by adding NaOH, for 60 minutes at 60 DEG  C., readjusting the pH to 5 by adding acid, neutralizing and dehydrating. In example (2), methyl-ethyl ketone is employed instead of acetone.
Patent GB-260554-A (GB)
Title: Improvements in keyless watches
IPC: G04B37/10
Filed: 1926-09-01
Abstract: 260,554. Wilsdorf, H., (Assignee of Perregaux, P., and Perret, G.). Oct. 30, 1925,. [Convention date]. Keyless mechanism comprises a watch case rim 1 carrying a plug 3 having a left-hand screw-thread to coact with arm internal lefthand thread 15 on the winding knob 8. This knob carries studs 9, 10, the inner ends of which move in axial grooves 11, 12 in a member 6 attached to the winding stem 4. A spring 14 tends to separate the knob 8 and member 6. 16 is a packing ring. When the knob is depressed and turned left-hand (as seen in plan) it is screwed down tight on to the ring 16, forming a dust-proof joint. For winding or setting the knob is unscrewed from the plug 3, the ends of the studs 9, 10 moving up the slots 11, 12. The plug 3 may be screwed or soldered to the rim 1 or may be a driving fit; the member 6 may be attached in any way to the stem 4 or may be integral therewith. Also, the left-hand thread 15 may be external on the knob 8, which then would screw direct into the casing rim or into the pendant,
Patent GB-151455-A (GB)
Title: Improvements in or relating to guards for power presses and the like
IPC: F16P3/04
Filed: 1919-09-02
Abstract: 151,455. Derricott, H. Sept. 2, 1919. Guards, controlling. - In a guard for presses &c. a guard-plate connected by linkwork with the sliding head of the press is positively moved before the tools as the head descends and withdrawn as the head rises. In the construction shown the guard-plate 1 is attached to a slide 3, 4, 5 movable on a bar 2 fixed to the press, and a bracket 9 fixed on the bar 2 carries a bell-crank lever 12, 17 connected by links 13, 18 with the head of the press and the plate 18. Springs 19 may be placed at the sides of the plate 18 to prevent injury to the operator when struck by the plate.
Patent GB-365580-A (GB)
Title: Process for the production of electric steel
IPC: C21C5/52
Filed: 1930-07-17
Abstract: 365,580. Electric furnaces. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, Dusseldorf, Germany. July 17, 1930, No. 21651. Convention date, July 31, 1929. Void [Published under Sect. 91 of the Acts]. [Class 39 (iii).] In the production of electric steel a furnace is coupled to a unit of smaller capacity during refining than it is during melting. At all times some of the furnaces of the plant will be effecting melting and the remainder refining. Connections to the various units may be effected by moving the supply units to the furnaces or vice versa. High frequency induction furnaces are referred to.