baber/WOPTO huggingface dataset:
Patent GB-123295-A (GB)
Title: Improvements in and connected with Cigarette and Cigar Cases.
Inventor: RUSSELL FREDERICK SAUNDERS
IPC: A24F15/16
Filed: 1918-11-26
Abstract: 123,295. Russell, F. S. Nov. 26, 1918. Addition to 111,454. Contents, facilitating access to; fittings, internal.-In a cigar or cigarette case having a pivoted frame B which can be tilted to facilitate removal of the cigars, &c., the frame has integral pivots D working in curved slots E formed in the interior walls of the case. The elastic web H that keeps the contents of the case in position is secured to loops J on the frame B.
Patent GB-1465249-A (GB)
Title: Photographic flash control circuit
IPC: H05B41/32
Filed: 1975-05-08
Abstract: 1465249 Control circuits for flash tubes POLAROID CORP 8 May 1975 19498/75 Heading H2H A control circuit for a flash tube K1 comprises a storage capacitor C3, a charging circuit for the capacitor and a circuit for initiating charging of the capacitor, a circuit responsive to the discharge of the capacitor through the flash tube to prevent charging of the capacitor until the charging thereof has been again initiated. Momentary closure of a push-button switch S2 cause a one shot multivibrator circuit 15 to produce an output pulse, which pulse sets a flip-flop circuit 6 and turns on transistors Q3, Q4. Transistor Q3 then allows a capacitor C5 in a timing circuit C5, R6 to charge causing a Schmitt trigger circuit 10 to produce a positive output signal to an OR gate 8 and transistor Q4 causes charging of a capacitor C1 to start an oscillator circuit including a transistor Q1 and transformer T. The output of the oscillator is rectified by a diode D 1 to charge the capacitor C3 which when fully charged causes illumination of an indicating lamp K2, the change in voltage then occurring across a resistor R4 applying a further signal to the OR gate 8. A flash from the tube K1 can now be made by operation of a switch S1 in the exposure control system 14 of a camera with the subsequent closure of a switch S3. But this operation must be made before the timing circuit C5, R6 causes the output signal from the Schmitt trigger circuit 10 to become such that the gate 8 conducts to cause a one shot multivibrator 7 to reset the flip-flop circuit 6 causing transistor Q2 to turn on, transistor Q1 then turning off thereby stopping the oscillator circuit Q1, T. Recharging of the capacitor C3 must be re-initiated by a further momentary closure of switch S2. Should an exposure have been made lamp K2 extinguishes to change the signal from resistor R4 to the gate 8 whereupon gate 8, multivibrator 7 and flip-flop 6 function as described above to inhibit operation of the oscillator circuit Q1, T. A further one-shot multivibrator circuit 9 is provided to ensure that the flip-flop circuit 6 is reset whenever a new battery is inserted into the apparatus.
Patent GB-776056-A (GB)
Title: Process for the production of unsaturated ethers
IPC: C07C33/00
Filed: 1953-07-14
Abstract: Unsaturated ethers are obtained by subjecting a saturated acetal containing less than 15 carbon atoms in the molecule and the aldehyde component of which contains from 3 to 9 carbon atoms to thermal decomposition in the presence of an aromatic sulphonic acid in an amount of from 0.01 to 0.3 per cent and preferably from 0.03 to 0.15 per cent by weight of the acetal.  The thermal decomposition is preferably effected at a temperature between 80 DEG  and 150 DEG  C. and the aldehyde component of the acetal should preferably contain no more than six carbon atoms.  Specified aromatic sulphonic acids are benzene sulphonic acid, toluene sulphonic acid, a naphthalene sulphonic acid, and a naphthol sulphonic acid, e.g. 1-naphthol-4-sulphonic acid.  The acetal subjected to the thermal decomposition may be obtained by subjecting a saturated C3-C9 aldehyde and a saturated alcohol to condensation in the presence of less than 0.1 per cent of an acid, particularly an aromatic sulphonic acid, the condensation being preferably carried out in the presence of an azeotropic entraining agent, e.g. benzene, carbon tetrachloride or a C5-C7 aliphatic hydrocarbon, for the removal of the water formed in the reaction.  The resulting acetal is then subjected to thermal decomposition in the presence of 0.01 per cent to 0.3 per cent by weight of the acid based on the acetal to form the unsaturated ether. The quantity of the sulphonic acid is brought to the optimum concentration required for the decomposition of the acetal either by the addition of further acid or by neutralization of part of it if it is present in excess of the amount required.  If desired, the acetal formed may be purified, before subjecting it to the thermal decomposition. When the acetal contains from 6 to 14 carbon atoms in the molecule it is preferably purified by steam distillation.  When the alcohol or aldehyde component of the acetal has more than six carbon atoms the thermal decomposition may be effected at sub-atmospheric pressure.  In an example a mixture of technical grade propionaldehyde, n-butanol and hexane containing a small amount (0.027 per cent) of p-toluene-sulphonic acid is boiled in a distillation column with removal of water together with the hexane, and the acetal-containing mixture is then thermally decomposed at 120-130 DEG  C. without further addition of p-toluene sulphonic acid to form propenyl butyl ether.  In other runs additional amounts of p-toluene sulphonic acid are added to the acetal formed before the thermal decomposition step.  A comparative example is also given in which the amount of p-toluene sulphonic acid present in the acetal decomposition is 0.34 per cent of the acetal, the yield of unsaturated ether being lower in this case.  Both the acetal formation and the acetal decomposition processes may be carried out batchwise or continuously.
Patent GB-676756-A (GB)
Title: Improvements in or relating to electric discharge tubes comprising a luminescent screen
IPC: C09K11/08
Filed: 1950-08-04
Abstract: 676,756. Luminescent materials. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 4, 1950 [Aug. 8, 1949], No. 19528/50. Class 39 (i). A discharge tube comprises a luminescent substance containing at least one element in each of the groups (i) zinc and cadmium, (ii) sulphur and selenium, (iii) copper silver and gold and (iv) gallium. The total amount of gallium is preferably between 10<SP>-4</SP> and 10<SP>-1</SP> atoms per 100 atoms of zinc and cadmium. In addition, the luminescent substance may contain one or more of the elements aluminium, chlorine, bromine and iodine, and fluorides of aluminium, gallium, beryllium, magnesium, calcium, strontium, barium, zinc or cadmium. Fluorescence is stated to be weaker than with substances without gallium, but the green phosphorescence is more intense and of longer duration. Examples of the production of substances in accordance with the invention are given. Specification 676,753 is referred to.
Patent GB-1245044-A (GB)
Title: Improvements in anti-microbial compositions
Inventor: LEEWEN GERRIT HENDRIK VAN
IPC: C12N9/72
Filed: 1969-04-17
Abstract: 1,245,044. Antimicrobial compositions. G. H. VAN LEEUWEN. 17 April, 1969 [24 Oct., 1968], No. 19623/69. Heading ASB. Antimicrobial compositions, especially for injection, comprise an antimicrobial agent and histaminase. Optionally, other enzymes, e.g. cysteine-oxidase, glutaminase, lipase, propeptinase, peptidase and chondrosulphatase may also be included. Specified antimicrobials are: allyl-thiocyanate, allyl-isothiocyanate, allyl sulphide, diallyl sulphide, benzylthiocyanate, sulphonates, sulphoxides and halosulphoxides, nitrophenols and nitrocresols. Penicillin may also be included.
Patent GB-186034-A (GB)
Title: Improved apparatus for effecting the automatic connecting-in and disconnecting-out of electrical machine units
Filed: 1922-07-17
Abstract: 186,034. Akt.-Ges. Brown, Boveri, et Cie. Sept. 10, 1921, [Convention date]. Equalizing load on generator; systems depending on the use of static transformers; switching systems.-Additional machines, transformers, or converters are connected to cr disconnected from the bus-bars in accordance with the load by means of thermal relays adapted to switch out at a lower current than that at which they switch in. Prime-movers for the machines may be started and stopped by the relays, and motors may be connected to and disconnected from a supply system. A machine b is adapted to be connected to the bus-bars c by means of a switch q, the operating coil p of which is controlled by means of a relay k. The relay k is provided with an operating-coil n, the circuit of which is controlled by a thermal relay i, and a holding-coil m. the circuit of which is controlled by a thermal relay h. The relays h, i are immersed in an oilbath f containing a heating-coil g supplied with current from the bus-bars c. The relay h is adapted to operate at a lower current than the relay i in order to avoid the continual switching-in and switching-cut of the machine b at the critical load on the bus-bars c. The Specification, as open to inspection under Sect. 91 (3) (a), states that a single thermal relay with a mechanical or thermal retarding device may be employed. This subject-matter does not appear in the Specification as accepted.
Patent GB-950194-A (GB)
Title: Apparatus for separating grain in a threshing machine
IPC: A01F12/00
Filed: 1960-06-03
Abstract: 950,194. Threshing machines. MASSEY-FERGUSON Inc. June 3, 1960 [June 5, 1959], No. 19655/60. Heading A1F. In a threshing machine the threshed material is thrown against a set of angled surfaces 67 to dislodge the grain from the loose straw and trash. The angled surfaces are provided by plates extending across the upper surfaces of the straw-walkers, such as 34 (Fig.3). There are four side-byside straw-walkers, and, as is conventional each comprises two spaced parallel members 61, 62 having sawtoothed upper edges. In the further part of each straw-walker these edges are joined by plates 66 extending forwardly and downwardly in the direction of flow, but in the portion nearest the threshing cylinder 15 the plates 67 are inclined oppositly to provide surfaces against which the threshings are impelled by the cylinder 15 and beater 19. To assist separation, a set of fans 44, one to each straw-walker, is provided in an air-chest 46 and four ducts 54 are arranged so that an airblast 30 will blow past the surfaces 67 as the threshed material falls on to it.
Patent GB-1473913-A (GB)
Title: Method and apparatus for impregnating a sheet of synthetic  cellular polymer material
IPC: B29C44/56
Filed: 1974-05-06
Abstract: 1473913 Laminates SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 6 May 1974 19739/74 Heading B5N [Also in Division D1] Resin-impregnated polyurethane foam laminates are formed by passage of two sheets of the foam 10, 11 downwardly into the nip of a pair of rollers 12, 13 whilst supplying polyester or epoxy resin from a nozzle 17 disposed thereabove, sideways leakage of the resin being prevented by providing a pair of wedge-shaped dams 14 (see Fig. 3) having a pair of arcuate surfaces, the inner (16) of which bears on and compresses the foam whilst the outer 17 bears on the roll surfaces.
Patent GB-881926-A (GB)
Title: Improvements relating to moulded boat hulls and their manufacture
Inventor: VINES ALAN
IPC: B63B5/24
Filed: 1959-07-09
Abstract: 881,926. Moulded boats. FAIREY MARINE Ltd. July 1, 1960 [June 9, 1959], No. 19781/59. Class 113. A hard - chine boat hull is formed by applying longitudinal strips 13, treated with uncured resin, to the. bilge surfaces of a roundbilge hull, bonding them to the hull by a curing process, and subsequently trimming the strips, to the required hard-chine form. The moulding may be by the hot-moulding-rubber-bag technique. The hard-chine may be formed by applying only one strip to the bilge.
Patent GB-1160245-A (GB)
Title: Improvements in or relating to the Vaporisation of Liquified Gases
Inventor: HORNER HENRY LEONARD
IPC: F25D3/10
Filed: 1966-05-04
Abstract: 1,160,245. Refrigerating. WESTLAND AIRCRAFT Ltd. 26 April, 1967 [4 May, 1966], No. 19810/66. Heading F4H. A suit for cooling the human body is connected to a heat exchanger located in an evaporation chamber to which liquid oxygen is supplied. As illustrated, a liquid oxygen reservoir 1 is provided with a pressure build-up circuit 2 and feeds a nozzle 15 in an evaporation chamber 5. The evaporation of the oxygen is governed by choice of nozzle size and by a pre-set relief valve 14 to give a temperature of 4‹ C. in the chamber 5. Water is circulated through a heat exchanger 7 in the chamber 5 and a suit 10. In another embodiment, Fig. 2 (not shown), the evaporation chamber relief valve is controlled through a billows by a temperature senser in the chamber. In a further embodiment, Fig. 3 (not shown), the evaporation chamber is located within the liquid oxygen reservoir.
Patent GB-644348-A (GB)
Title: Improvements in or relating to rock drilling tools
IPC: E21B10/58
Filed: 1948-07-23
Abstract: 644.348. Percussive drills. INGERSOLLRAND CO. July 23, 1948, No. 19829. [Class 124] In a rock drill the body has a slot of constant cross section with cutters of hard metal in the slots and a recess between adjacent ends of the cutters to receive an abutment member for the cutters. As shown, a drill bit having a body 20 has two slots 25,at right angles to one another into which are brazed inserts of hard metal, e.g. tungsten carbide. At the intersection of the slots a recess 30, which may be larger than the intersection, has brazed therein a cylindrical member 31 which forms an abutment for the inner ends of the inserts. A passage 32 in the member 31 allows clearing fluid to flow from a passageway 24 in the bit body. The abutment member may be cruciform in shape, the arms being narrower than the passage 24, Figs. 4, 5 and 6 (not shown).
Patent GB-386567-A (GB)
Title: Roller bearing and method of making the same
IPC: F16C33/54
Filed: 1932-07-13
Abstract: 386,567. Roller bearings. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Advance Stamping Co. ; 7075, Lyndon Avenue, Detroit, Michigan, U.S.A.) July 13, 1932, No. 19839. [Class 12 (i).] A spacing-cage for the cylindrical or conical rollers of a bearing having conical races has a conical flange B with apertures I for the rollers and fingers D extending between the rollers. The end E of each finger is tapered and is bent to contact the flange B. The cage is punched from a sheet-metal disc. In operation, the cage engages the rollers under tension. The cage dimensions are such that when it is assembled with the rollers between the races M, N, the end thrust flange O on the race N does not engage the ends of the rollers. Under load, however, the rollers move outwardly against the flange O in opposition to the tension of the cage.
Patent GB-831788-A (GB)
Title: Heat exchange equipment and method
IPC: F28D11/02
Filed: 1956-06-27
Abstract: 831,788. Heat exchangers. CHEMETRON CORPORATION, [formerly NATIONAL CYLINDER GAS CO.]. June 27, 1956 [July 20, 1955], No. 19876/56. Class 64(3) In a method of operating a heat exchanger in which a heat transfer medium flows along a helical path 12 formed within a rotary drum 4 over an external surface of which passes a flowable material such as starch slurries, confections syrups or viscose to be processed, the heat transfer medium is one which, under the operating conditions prevailing in the heat exchanger, is present in both liquid and vapour state, the hand of the helical path and direction of through put of the heat transfer medium, and the direction of rotation of the drum, being selected so as to minimize the absolute angular velocity of the heat transfer medium and thereby minimize the formation of a layer of liquid-phase heat transfer medium on theheat exchange surface of the drum. Heat transfer media mentioned are steam, brine, diphenyl or diphenyl oxide or a mixture thereof, ammonia and fluorine refrigerants. In the form shown, steam or other heat transfer medium passes up through tube 29 and then downwardly through the helical path 12 in rotary drum 4 from which condensate is discharged through ports 33, flowing thence through tube 36 leading to exit conduit 48. Tubes 29 and 36 rotate with the drum 4. The flowable material to be processed flows through pipe 25 to space 20, through annular passage 5 between drum 4 and a stationary outer shell 3 to a head space 21 and thence out through passages 21, 23. Helical baffle 28 in steam. passage 12 acts to impart angular velocity to steam, and the speed and direction of the drum 4 is so selected that the effect of centrifugal force tending to throw steam condensate on to the drum wall and thereby reduce the heating effect of the steam, is eliminated. The steam passage 12 may decrease in cross-sectional area from the inlet to the outlet to compensate for the decrease in volume of the steam as it condenses. This may be effected by progressively decreasing the pitch of helix 28. A helical rib 18 may be provided on the external surface of the rotary drum 4 to mix or pump through the passage 5 the flowable material to be processed. A jacket 14 through which a heat transfer medium passes surrounds the shell 3 and is itself surrounded by thermal insulation 16. Longitudinal thermal expansion and contraction of the jacket 14 is permitted by bellowslike member 17.
Patent GB-240276-A (GB)
Title: Improvement in or relating to trivets for domestic firegrates of a barless type
IPC: F23H13/00
Filed: 1924-08-23
Abstract: 240,276. Parsons, L., and Parsons, H. M. Aug. 23, 1924. Trivets.-A trivetsupporting device for use with barless grates comprises a bracket formed in two parts hinged together at C, one of which is bolted to the grate by bolts H passing through a slot in it, whilst the other part B rests on the front of the grate and carries a pivot A for the trivet T; the hinge C allows the parts to be adjusted so that the trivet is horizontal. Large trivets may be provided with additional supports in the form of feet or legs adjustable in height to rest on the hearth.
Patent GB-661512-A (GB)
Title: Improvements in or relating to container handling and registering apparatus
IPC: B65C9/06
Filed: 1949-07-29
Abstract: 661,512. Endless belt conveyers. ARNOLD, J. C. (Pneumatic Scale Corporation, Ltd.). July 29, 1949. No. 19949/49. Class 78 (i). [Also in Group XV] In a labelling machine means are provided for positioning csntainers, e.g. bottles, in two movements so that a projection thereon, such as moulded lettering, is in a predetermined position relative to the conveyer in order that subsequent application of a label occurs at the desired point relative to the projection. Bottles 14 each having a projection 16 pass to the machine on a conveyer 12 being held by pads 20, Fig. 1, of an endless chain 18 engaging the top of the bottle. When the bottles reach the initial registering apparatus 10, Fig. 4, the pad 20 is raised from them by connections from a cam 30. Fig. 1, and simultaneously rollers 70 not shown and 72 are rocked to co-operate with a fixed roller 64 to hold the neck of the bottle. A driving unit 102, Fig. 4, comprising rollers 104, 106 driven from the cam shaft 32 through a clutch and an opposing unit 108, comprising an idler roller 110 and a detecting finger 111, are advanced on their respective slides 112, 118 in time relation to the movement of the conveyer by connections from a cam 122 on the shaft 32, to engage the bottle, which is thus rotated counterclockwise until the projection 16 contacts the finger 111. The finger 111 rocks the shaft 244 and through a cam bar engages a pawl and ratchet in the drive of the rollers 104, 106 to arrest the bottle a little beyond the predetermined position. The pads 20 then reengage the bottle which is moved to the final registering position 300 where it is similarly released from the pad 20 and engaged by idler rolls 318, 320 advanced on a, slide 322 by a cam 328, not shown, on the shaft 32. A finger 326, also operated from the cam 328 to effect the final movement to position the bottle, is pivotally mounted at 350 to an arm 352. The finger is rocked by a cam operated linkage from its neutral position 326<SP>1</SP> out of contact with the bottle to contact it in an extended position 326<SP>11</SP> from which it moves along the bottle surface to move the projection 16 clockwise to the predetermined position at right angles to the conveyer 12, at which point the throw of the cam 328 brings the linkage to rest. A stop finger 376, not shown, spring urged against the bottle may be provided to engage the side of the projection 16 opposite the finger 326 positively to stop movement of the bottle. U.S.A. Specification 2,293,553 is referred to.
Patent GB-459669-A (GB)
Title: Improvements in magnetic cores and methods of producing them
IPC: H01F1/24
Filed: 1935-07-12
Abstract: Cores for inductance coils are produced by treating powdered magnetic particles with linseed oil in the presence of oxygen the dried particles being thereafter pressed into shape without the use of a further binder.  The particles mixed with a small faction of linseed oil are tumbled in a drum with or without the application of heat, or with small additions of manganese, lead, cobalt or iron.  Drying can also be accelerated by electrodeposition of the lead or manganese in the tumbling drum containing a suitable electrolyte.
Patent GB-1341663-A (GB)
Title: Speech predictive encoding communication system
IPC: H04J3/16
Filed: 1972-05-01
Abstract: 1341663 Multiplex pulse code signalling COMMUNICATIONS SATELLITE CORP 1 May 1972 [30 April 1971] 20107/72 Heading H4L A digital communication system wherein a plurality of subscriber circuits share a lesser plurality of channels, comprises means for transmitting over said channels only those samples in each circuit which differ from a preceding sample in the corresponding circuit by more than a predetermined amount and means for receiving the transmitted samples and combining them with stored samples from previous frames to produce a complete frame of information. As described 64 voice circuits are transmitted over 32 time division multiplex channels, a frame consisting of 24 eight-bit time slots for the speech samples and 8 eight-bit time slots which are occupied by a sixty four-bit sample assignment word (SAW). All the 64 voice circuits are sampled during each frame and converted to twelve-bit code words which are then converted to an eight-bit code to obtain a desired companding characteristic. Each coded sample is compared with the corresponding sample of the previous frame stored in a "predictive frame memory" and if the difference is greater than a predetermined threshold value it indicates that the sample is not predictable from the previous samples and must be transmitted. If the difference is equal to or less than the threshold value the sample is predictable and is not transmitted. As the comparisons are made, the first unpredictable sample is placed in time slot T 1  of a frame and if, for example the sample is from voice circuit No. 3, the SAW signal will have binary 0 in its first two time slots and binary 1 in its third time slot, the operation continuing until the 64 comparisons have been made and the unpredictable samples placed in the available time slots T 1  to T 24 . The receiver has stored therein the 64 voice samples transmitted during previous frames as unpredicted samples and as each frame is received the store is updated by substituting the unpredictable samples for the corresponding stored samples in accordance with the information provided by the SAW signal so that the present frame of 64 voice samples can be reconstructed. Should there be an "overload" condition the additional unpredictable samples are not transmitted and the receiver uses the corresponding previous samples stored at the receiver to reconstruct the frame. To further reduce the effects of overload the sampling sequence of the voice circuits is recirculated as by starting with circuit 1 in the first frame continuing in the sequence circuit 2, 3, 4 to circuit 1 in the second frame, and so on.