baber/WOPTO huggingface dataset:
Patent GB-344752-A (GB)
Title: Improvements in line balancing circuits for two-way transmission systems
IPC: H04B1/58
Filed: 1930-07-03
Abstract: 344,752. Two-way repeaters. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. July 3, 1930, No. 20217. Convention date, July 5, 1929. [Class 40 (iv).] In a balanced bridge with or without a differential transformer for connecting a telephone line to a two-way repeater, the two arms complementary to the line and the line balance consist of unequal impedances, the ratio of which is variable with frequency. This enables a pure resistance to be used as the line balance, the above ratio then being proportional to the line impedance for frequencies within the voice-range. In Fig. 1 the complementary arms comprise equal inductances L1, L2 shunted by unequal capacities Cl, C2, and the line balance comprises a resistance R. The two repeater paths are connected to the terminals 2, 2<1> and 3, 3<1>. A divided inductance 6, 6<1> may be added as in Fig. 2. In Fig. 4, two inductances L1, L2 are replaced by a single inductance L, common to the complementary arms, and the inductance 6, 6<1> forms the secondary winding of a differential transformer. In the modification of Fig. 5 the elements are arranged symmetrically in relation to the line. Fig. 6 shows the application to a cord circuit repeater, the repeater associated with the cord circuit 8 being connected to the line 1, the line balance R and the complementary arms of the bridge through the plug 9 and jack 7. A short mathematical discussion is given, and it is shown that for a loaded line having a rising characteristic a good balance is obtained if C1=1/8L#<2>0, C2=3/8L#<2>0, #0 being the limiting frequency of the line.
Patent GB-1531199-A (GB)
Title: Window unit for an oven door
IPC: F24C15/04
Filed: 1977-05-13
Abstract: 1531199 Oven windows MILLS PRODUCTS Inc 13 May 1977 [4 June 1976] 20226/77 Heading A4D A window unit for an oven door comprises two glass panes 11, 12 held within a rectangular frame 14, which provides a central spacer portion 20 and two glass receiving channels 25, 33, a flange 30 projecting from the frame being used to secure the window unit in the door. The frame is formed by bending an elongate profiled member suitably notched to allow bending at the corners and a tab 42 secures the ends of the member together. An oven door, Fig. 2 (not shown), comprises insulating material (56) between a baffle panel (54) and a rear panel (52), the window unit being held by its flange 30 between the baffle panel and brackets (64) secured to the rear panel. The door may include a front panel (50) providing a further glass pane (72) covering the window unit and providing an air-flow passage (74) between the further glass pane and the unit.
Patent GB-212512-A (GB)
Title: Improvements in parachutes
IPC: B64D17/52
Filed: 1923-08-08
Abstract: 212,512. Th÷rnblad, A. R. March 5, 1923, [Convention date]. Drawings to Specification. Parachutes. - In a parachute device of the kind which is packed in one or more containers, the developing line connecting the packed device with the aircraft is packed in a casing or pocket arranged close to the container to which the developing line, is attached, so that when the parachute is released the main container remains suspended from the aircraft. A sufficient length of the developing line is withdrawn from its casing before the parachute begins to unfurl, in order to enable the device to clear the aircraft before opening. The device described is identical with that described in Specification 212,511 in which other features are claimed.
Patent GB-1425405-A (GB)
Title: Probe for an ultrasonic viscosimeter
IPC: G01H1/10
Filed: 1973-04-27
Abstract: 1425405 Ultrasonic viscosimeter; ultrasonic probes VYSKUMNY USTAV MECHANIZACIE A AUTOMATIZACIE 27 April 1973 [19 July 1972] 20243/73 Headings H4D and H4J A torsion vibrator for an ultrasonic viscosimeter comprises a magnetostriction bar 1 extending through a toroidal transformer 2 and coupled to a resonant extension 4 and a resonant probe 3. The points at which bar 1 is coupled to probe 3 and extension 4 are joined to a casing 6 through couplings 7, 8. The bar 1, casing 6 and couplings 7, 8 form the secondary of transformer 2, the primary of which is energized by A.C. or unidirectional pulses to vibrate the resonator. The vibrations are sensed by a pick-up coil 5, and their damping is measured to determine the viscosity of a liquid contacting probe 3.
Patent GB-983509-A (GB)
Title: Apparatus for winding foil material
IPC: H01F41/06
Filed: 1961-06-05
Abstract: 983,509. Winding webs. REYNOLDS METALS CO. June 5, 1961 [June 10, 1960], No. 20275/61. Heading B6B. A machine for winding strips of foil and paper together to form an interleaved coil comprises a spindle for mounting a core upon which the strips of foil and paper are to be wound, means for rotating the spindle a predetermined number of turns, means for guiding the foil and the paper in centered relation to each other and to the core as the coil is formed, means for mounting supply rolls of foil and paper strips and for controlling the tension created in the strips as they are drawn from the rolls, and means for applying lengths of insulating terminal tape to the foil strip at predetermined positions along the strip. Foil 25, e.g. aluminium foil, Fig. 1, is fed from a braked supply roll 24 over a guide 26, between air jets 28, through a foil guide 29 by. pinch rollers 30. A guide 23 guides insulating paper from a braked supply roll 84 to the winding spindle 46. Terminal tapes 35, 36 are unwound from braked supply rolls 34. In operation, the machine performs a taping cycle, a winding cycle and a taping cycle, the spindle 46 being driven by separate drives for each different cycle. A motor 50, Fig. 2, drives for each different cycle. A motor 50, Fig. 2, drives the spindle 46 through worm gearing, not shown, and an overrun clutch 48 during the taping cycle. A tape cycle shaft 52a is driven by a chain 52; a cam 58 on the shaft 52a actuates a switch 56, while a cam 54 actuates a switch 55. The switch 55 energizes solenoids, not shown, for actuating valves supplyiing air to cylinders 60, 62, Fig. 3, which rock tapeapplying assemblies 38 toward the foil 25. Thus, the terminal tapes 35, 36 are applied in spaced lengths in the manner described with reference to Figs. 8 to 13 (not shown), the foil being cut by a knife 70, Fig. 3. Before the commencement of a winding cycle, the leading end of the foil carrying inner terminal tapes formed by cutting, Fig. 12 (not shown), is secured by tape to an empty core 74, Fig. 3. A guide arm 79, Fig. 5, is then lowered, such that the foil is guided between flanges 85, while the paper from the roll 84 is drawn through track 80, thereby centring the foil and paper laterally. A motor 94, Fig. 2, drives the spindle 46 through a belt 98. A belt 45 drives a reduction gear 100 which drives a timing cam 104 which re-opens a micro-switch 106 when spindle 46 has made a predetermined number of revolutions. The speed of the motor 94 is controlled by a potentiometer 110, Fig. 16a (not shown), the motor 94 being dynamically braked under the control of a relay 125, Fig. 16b (not shown), and by a mechanical brake 122.
Patent GB-819316-A (GB)
Title: Effluent and particularly sewage purification plant
Filed: 1956-06-29
Abstract: 819,316. Treating sewage. PASSAVANT, W., PASSAVANT, U., and SCHRAMM, P. [trading as PASSAVANT-WERKE]. June 29, 1956 [June 5, 1955], No. 20276/56. Class 111. A comminutor or other apparatus for operating on effluent or sewage is arranged in a housing b, e, f mainly submerged in a chamber or channel a, the housing being formed in two parts, part e being fixed to the bed of the channel and part b f, incorporating at least a portion of the comminutor, &c., being hinged at h to the first part so that it may be swung upwards for cleaning. A second pivot i may be provided to permit swinging sideways where the movable part of the housing would otherwise foul the side of the channel.
Patent GB-1201572-A (GB)
Title: Shears for cutting continuously cast bar stock
IPC: B23D21/00
Filed: 1968-04-29
Abstract: 1,201,572. Shearing. SCHLOEMANN A.G. 29 April, 1968 [28 April, 1967], No. 20304/68. Heading B3W. A method of cutting continuously cast bar stock 23 having a substantially rectangular cross-section and a predetermined width which is fed lying flat on a conveyer comprises using vertically movable blades 10, 11 each having a recessed cutting edge as shown, the width of the stock being greater than the length of the cutting faces 19 and 20 so that the inclined cutting faces 21, 22 cut first, forming flats in the edges of the stock and preventing widening of the stock as cutting proceeds. The length of faces 19 and 20 is preferably 80% of the width of the stock. The faces 21, 22 are preferably set at an angle of 130 degrees to the faces 19, 20, respectively, and are bevelled so that the flats merge into the normal section of the stock with a step being formed. A slight indentation is formed at the edge of the stock opposite the flats 24, 25 by the edges 19, 20.
Patent GB-932863-A (GB)
Title: Reel
Inventor: STOREY PHILIP
IPC: B65H75/14
Filed: 1961-06-06
Abstract: 932,863. Thread reels. V. & E. PLASTICS Ltd. May 24, 1962 [June 6, 1961], No. 20310/61. Class 120 (3). A moulded reel comprises a generally cylindrical outer shell 10 externally flanged or shouldered at its ends which are closed by axially apertured end discs 13, 17, one of which is integral with the shell and the other of which is formed separately from and secured to the shell 10, and a central axial tube 15 of the reel being formed integrally with one of the end discs and in contact with the other disc. The tube 15 may be integral with the disc 13 which is integral with the shell 10, or integral with the other disc 17 (Fig. 3, not shown). The disc 17 may be secured within a recess 16 in the flange 11 or may fit over the flange (Fig. 4, not shown). The reel is preferably injection moulded with the cylindrical shell 10, while still warm, fitted on to the cold disc 17. The shell may be pressed or spun over the disc and adhesive may be used. The material may be polystyrene, cellulose acetate, polypropylene or polythene.
Patent GB-631502-A (GB)
Title: Process of preparing hemostatic compositions
IPC: A61K38/48
Filed: 1947-07-28
Abstract: A haemostatic composition is prepared by recovering thrombin from blood plasma, dissolving the thrombin in salt water, adding to the solution a support for thrombin consisting of an amino acid which is soluble in salt water and insoluble in the organic liquids which precipitate thrombin, which absorbs thrombin in a labile manner and which has no detrimental action on parenteral injection, cooling the solution, precipitating both thrombin and the support with an organic liquid, allowing the precipitate to settle in the cold, draining and drying it in vacuo.  Glycocoll is the preferred amino acid, and alcohol or acetone are the preferred precipitating liquids.  The product is used as a haemostatic in general, or particularly for parental intramuscular or oral administration.  The Specification as open to inspection under Sect. 91 also refers to holosides and sugars as suitable supports.  This subject-matter does not appear in the Specification as accepted.
Patent GB-652492-A (GB)
Title: A method of and apparatus for preparing dough for baking
IPC: A21C9/08
Filed: 1948-07-30
Abstract: 652,492. Rolling and coiling dough. RHODES, H. C. July 30, 1948, No. 20356. [Class 87 (ii)] In a continuous and uninterrupted operation dough is rolled in opposite directions and then coiled into cylindrical form. It may be coiled longitudinally of the rolling direction or, as shown, transversely thereof. Dough pieces 11 are sheeted by rolls 12, reversed end for end by a rotating drum 15 (to present the wetter end foremost for the next sheeting operation), sheeted by two pairs of rolls 18, 22 and reversed by another drum 24 on to a conveyer 25 which carries it under a coiling mat 26 of wire chain cloth. Specification 653,550 is referred to.
Patent GB-203943-A (GB)
Abstract: 203,943. Littlefair, T. T., and Littlefair, J., (Marathon Co.). Oct. 28, 1922. Clips, lever.-Relates to belt &c. buckles of the type wherein one end of the belt is attached to the buckle by a pivoted lever clip and the free end is adjustably secured by pivoted gripping means tightened by the pull on the belt, and consists in freely mounting a series of gripping elements 10 on a pin 4 which forms a pivot connection between the main part 1 of the buckle and a plate 5 carrying the gripping lever 6 for the fixed end of the belt. The gripping elements 10 may be serrated at 11, and each element has a shoulder 12, Fig. 4, bearing against the plate 5. Inturned edges 1b of flanges 1a on the part 1 form guides for the end 2 of the belt.
Patent GB-183713-A (GB)
Title: Improvements in washing machines
IPC: D06F21/04
Filed: 1921-07-30
Abstract: 183,713. Braithwaite & Son (Engineers), Ltd., I., and Simpson, S. W. July 30, 1921. Washing-machines with closed or enclosed rotary receptacles.-The rotary perforated cylinder A, divided by partitions B into compartments C each receiving the work of a different customer, has auxiliary compartments D adjacent to the main compartments, which may be formed by closing in one of the lifters E on the outside and providing partitions d between the compartments. A sliding apertured door F is provided which is locked in closed position by the main door A<1> of the cylinder. The auxiliary compartments may alternatively be formed by attachments to the interior or to the door of the cylinder.
Patent GB-700598-A (GB)
Title: Improvements in or relating to the production of caffeine deficient coffee
IPC: A23F5/20
Filed: 1952-08-15
Abstract: A process for the recovery of caffeine from decaffeinated coffee consists of moistening roasted, ground, dearomatized coffee with water, and treating it in a counter current percolator with hot trichlorethylene (or chloroform or benzene) to remove both the fat content and the caffeine.  The resulting solution is distilled to recover the solvent and the fat is removed from the residue by dissolving it in cold petroleum ether, whereupon the caffeine is redissolved in trichlorethylene or chloroform, decolourized with charcoal and crystallized out.  Alternatively the residue may be treated with hot water to dissolve the caffeine and separate the fat which floats on the surface.  In an alternative method, the fat is removed from the coffee before the caffeine is dissolved out.ALSO:In decaffeinated coffee extract is made by heating roasted and ground coffee in a stream of inert gas to remove the aromatic elements, moistening the residue with 15 to 45 per cent by weight of water and then treating in a counter-current percolator with hot trichlorethylene to remove both the fat content and the caffeine. The treated residue is evaporated to remove the solvent and a hot water extract is made, spray dried, and rearomatized. In an alternative, the dearomatized coffee may be treated with cold petroleum ether to remove the fat before treatment with the caffeine solvent.  The fat and the caffeine are subsequently recovered (see Group IV(b)).
Patent GB-1078247-A (GB)
Title: Respiratory apparatus
IPC: A61M16/00
Filed: 1966-05-09
Abstract: 1,078,247. Respiratory apparatus. O. H. DRAGER, [trading as DRAGERWERK, HEINR & BERNH DRAGER], May 9, 1966 [May 8, 1965], No. 20534/66. Heading AST. A respiratory apparatus which has the effect of mitigating atelectasis comprises an inhalation conduit 1 for supplying nutrient gas to a patient, an exhalation conduit 27, 25, a first exhalation valve 31, a by-pass conduit 26 with a second exhalation valve 33 which operates at a higher exhalation pressure than said first valve, and a counting mechanism arranged to count changes in pressure phases in the inhalation conduit and to maintain said first valve closed during an exhalation phase after a number of pressure phase changes, thereby to cause exhalation through said second exhalation valve. The counting mechanism may comprise a diaphragm 18, a toothed bar 20, a ratchet wheel 21 and a cam 22.
Patent GB-369115-A (GB)
Title: Improvements in a process for decomposition of highly polymerised carbohydrates
IPC: C13K1/02
Filed: 1931-07-17
Abstract: Starch is degraded by means of dry hydrogen chloride acting on the dry starch under raised pressure to produce dextrin which is used for adhesives and similar purposes.ALSO:Highly polymerized carbohydrates or substances containing them, such as cellulose, starch, cotton, linters, and wood, are degraded by means of dry hydrogen chloride acting on the dry material under raised pressure.  The product from cellulose and the like is a watersoluble dry powder which can be forthwith digested by the animal organism.  The degraded starch is used as dextrin for adhesives and similar purposes.  After the usual further treatment (e.g. acetylation or nitration) the products may be employed as basic materials for the varnish and explosive industries. Examples are given of the treatment of air-dried cellulose and well-dried potato starch.
Patent GB-326733-A (GB)
Title: Improvements in or relating to dust bags for suction cleaners
IPC: A47L9/14
Filed: 1929-07-05
Abstract: 326,733. Hoover, Ltd., (Hoover Co.). July 5, 1929. Sacks ; securing bags.-The dust bag 10 of a vacuum cleaner has an opening provided with an expansible frame 12 composed of four pivotally connected members 16 - - 19. Extensions 21 on two of the members facilitate opening and closing. A clip 22 secures the frame in closed position.
Patent GB-148803-A (GB)
Title: Method of connection for producing oscillations with vacuum tubes
IPC: H03B5/10
Filed: 1920-07-10
Abstract: 148,803. Huth Ges., Dr. E. F. Sept. 27, 1917, [Convention date]. Electric oscillations, producing. - A valve oscillator has a tuned circuit connected between its grid and filament and produces oscillations without a reactive coupling between its grid and plate circuits. As shown in the Figure, a tuned circuit 12, 13 is connected between the grid 3 and filament 2 of the valve 1, and the aerial is connected across an inductance 7 in the plate circuit, or may be inductively coupled. The frequency is varied by adjusting the grid circuit, and the aerial is then tuned to give maximum current. The Specification as open to inspection under Sect. 91 (3) (a) states also that the tuning of the grid circuit and the aerial may be effected simultaneously by the same control mechanism and either continuously or in steps. When couplings are employed these may be simultaneously adjusted. If the oscillator is used as a generator in heterodyne reception, the receiving-circuits may be tuned conjointly with the oscillator circuits. This subject-matter does not appear in the Specification as accepted.
Patent GB-1286769-A (GB)
Title: A flap switch for a pneumatic conveyor
Inventor: SEIDE RUDOLF
IPC: B65G53/56
Filed: 1971-04-19
Abstract: 1286769 Valves; pipe connecting devices MIAG MUHLENBAU UND INDUSTRIE GmbH 19 April 1971 [19 Feb 1970] 20739/71 Headings F2G and F2U [Also in Division B8] In a switching valve comprising a body section 1, a pivotable flap 8 and side covers 2 for the body section, a diaphragm 13 of flexible material is interposed between the side covers 2 and the body section and arranged to bear against the side of the flap 8 to effect a seal therewith. The side walls 2 each have a recess 11 of an area in excess of that swept by the flap 8, which recesses may be filled with a foam material (14), Fig. 3 (not shown), or a pressurized fluid. Further seals 17, 18 (19) are provided between the flap, and the body section. The flap may be manually or automatically operated through levers 9.
Patent GB-1057734-A (GB)
Title: Method of making contact to a plurality of semiconductor elements present on a common semiconductor wafer
IPC: H01L21/48
Filed: 1964-05-20
Abstract: 1,057,734. Semi-conductor devices. TELEFUNKEN PATENT VERWALTS G.m.b.H. May 20, 1964 [May 22, 1963], No. 20803/64. Heading H1K. Contacts are applied to a plurality of semiconductor elements forming part of a wafer by soldering the teeth of a comb-shaped electrode to the elements, the electrode being positioned normal to the electrode, and then cutting off the teeth for use as electrodes. Fig. 3 shows a plurality of comb-shape bodies 6 the teeth 5 of which have been soldered to individual elements of semi-conductor provided by the scoring of wafer 1. The bodies 6 may then be separated by fracturing the wafer along the scored lines and further electrodes may be provided, for example as shown in Fig. 8 to the semi-conductor elements 4 while these are supported by body 6. In Fig. 8 electrodes 9 forming part of comb-shaped body 8 are bent at their ends for attachment to the semi-conductors 4 and a spacer 14 is provided for use during assembly. Alternatively wire electrodes may be affixed to the semi-conductor elements while supported by the comb-shaped bodies 6 in a multiple operation, and for this purpose reference is made to the use of quartz "landings" on the semi-conductor element which bear electrical coatings forming part of the electrode structure. When these operations have been completed the teeth 5 are cut from the rest of comb 6 and the individual teeth separated by fracturing the scored semi-conductor wafer thus providing a plurality of transistors or other devices.
Patent GB-1170798-A (GB)
Title: 00,11-Dihydro-5H-Dibenzo[a,d]Cycloheptene Derivatives
Inventor: RUSSEL JEFF HAMISH
IPC: C07C13/24
Filed: 1967-05-05
Abstract: 1,170,798. 5 - Aminomethyl - 10,11 - dihydro - 5H - dibenzo - [a,d] - cycloheptene derivatives. DR. A. WANDER S.A. 5 May, 1967 [10 May, 1966], No. 20979/67. Heading C2C. Novel compounds of general formula wherein R 1  is H or C 1-3  alkyl, R 2  is a C 1-3  alkyl, alkenyl or alkynyl group, R 3  is C 1-3  alkyl and one of R 4  and R 5  is H and the other is H, halogen or C 1-3  alkyl, and acid addition salts thereof are prepared by one of the following methods (a) a reactive ester of an alcohol of formula is reacted with an amine of formula H.N.R 2 R 3 ; (b) a compound of formula wherein R<SP>1</SP> is H or a C 1-3  alkyl alkenyl or alkynyl group is subjected to alkylation, alkenylation or alkynylation; or (c) a quaternary salt of formula wherein X is an acid radical is subjected to reductive cleavage, all of which may be followed by salt formation. Pharmaceutical compositions in conventional forms for enteral or parenteral administration and having anticonvulsant activity comprise an above novel compound and a carrier therefor. Reference has been directed by the Comptroller to Specification 1,115,327.
Patent GB-298723-A (GB)
Title: Improvements relating to machines for the mixing, aerating, and like treatment of various materials
IPC: A21C1/02
Filed: 1927-08-09
Abstract: 298,723. Baker Perkins, Ltd., Harber, L. S., and Pointon, J. E. Aug. 9, 1927. Stationary batch with stirrers having complex motions.-In a mixing &c. machine of the kind in which the beater or whisk is arranged with its axis inclined to the axis of the pan and is given a planetary motion, the beater spindle a, mounted in a rotatable head b, is fitted with a pinion f engaging a fixed. internally-toothed annulus g. Specification 204,752 is referred to.