baber/WOPTO huggingface dataset:
Patent GB-407837-A (GB)
Title: Improvements in and relating to electric apparatus for generating voltage impulses
IPC: H03K3/537
Filed: 1933-05-10
Abstract: 407,837. Charging and discharging condensers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) May 10, 1933, No. 13642. Convention date, May 10, 1932. [Class 38 (iv).] An impulse generator employing the discharge in series of condensers charged in parallel comprises an oil or compound-filled cylinder a made of insulating material and containing the condensers c<1> . . c<2> mounted in superposition, and carrying the spark gaps b<1> .. b<2> and blocking resistances d<1> .. d<9> and d2 .. d<10> mounted in tiers on its outer surface. One ball of each spark gap is adjustable by rack and pinion gears, e.g., g<1> the pinions being connected together by insulating members h<1> .. h<5>. Specification 389,813 is referred to.
Patent GB-144461-A (GB)
Title: Improvements in or relating to rollers or pulleys for colliery haulage and like purposes
IPC: B66D1/30
Filed: 1919-05-30
Abstract: 144,461. Wood, G. May 30, 1919. Rollers or cylinders.-A roller or pulley of the kind having a spindle a screwed near both ends, end plates c provided with annular bevelled projections or flanges d on their inner faces engaging similarly-bevelled faces f on a drum c, and nuts g to hold the drum between the plates, is characterized by making the plates in a corrugated or countersunk form. The end plates are preferably made of stamped steel. According to the Provisional Specification, the plates and the spindle may be provided with flats to prevent relative rotation, the annular projections of the plates may be bevelled on their undersides, and the plates may be cast.
Patent GB-1273463-A (GB)
Title: Deuterium-hydrogen exchange using diamines
IPC: B01D59/32
Filed: 1970-03-23
Abstract: 1,273,463. Deuteration of amines. ATOMIC ENERGY OF CANADA Ltd. 23 March, 1970 [8 April, 1969], No. 13928/70. Heading C2C. [Also in Division Cl]  A mono- or bi-thermal process of concentrating deuterium in a gaseous, hydrogen containing stream, e.g. ammonia synthesis gas, comprises passing the stream through an exchange liquid comprising a diamine having up to five carbon atoms per molecule, e.g. 1,2-diaminoethane, 1,2- diaminopropane or 1,3-diaminopropane, or a mixture of the diamine with a liquid selected from the group consisting of another similar diamine, a monoamine and ammonia. The exchange liquid may contain a catalyst e.g. an alkyl amide of lithium, sodium, potassium, rubidium or cesium. In the bi-thermal process shown in Fig. 1 a stream 1 of nitrogen and hydrogen and a stream 2 of exchange liquid countercurrently engage in upper cold tower Cu where deuterium passes to the exchange liquid. A portion 1a of the emergent gaseous stream passes to an ammonia synthesis plant, whereas a portion 1b is fed upwardly through hot tower H and lower cold tower C L  before joining the feed stream 1. In the lower cold tower C L  deuterium passes from the gaseous stream 1c to the exchange liquid 2a whereas in the hot tower H deuterium passes from the exchange liquid 2b to the gaseous stream 1b Streams 1d and 2d of gas and exchange liquid respectively are taken off from points of highest deuterium concentration. In the monothermal process shown in Fig. 2, ammonia synthesis gas stream 12 passes from exchange tower T to synthesis plant S. A portion of the ammonia product 13 is taken off in stream 14 which then passes upwardly through exchange tower E. The emergent ammonia stream 14a is then cracked at stage C and returned to the exchange tower T. A stream 16a of exchange liquid cycles between the two exchange towers. Deuterium transfers from the synthesis gas to the exchange liquid in the tower T, and from the exchange liquid to the ammonia gas stream 14 in the exchange tower E. Portions 14b and 16b of the gas and exchange liquid are withdrawn.
Patent GB-1525064-A (GB)
Title: Purification of hydrogen chloride
IPC: B01J20/04
Filed: 1976-04-06
Abstract: 1525064 Chlorofluoromethanes LUMMUS CO 6 April 1976 [25 April 1975] 13988/76 Heading C2C [Also in Division C1] In the production of chlorofluoromethanes by the reaction of hydrogen fluoride with chlorinated methane, the hydrogen chloride gas withdrawn from the reaction vessel contains hydrogen fluoride and silicon tetrafluoride which impurities are removed by contacting the gas with calcium chloride on activated alumina. The chlorofluoromethane may be prepared by contacting methane with a molten salt mixture comprising the higher and lower valent chlorides of a multivalent metal, such as copper, and the oxychloride thereof, and a member of the group HCl, Cl 2 , and mixtures thereof to produce chlorinated methanes which are contacted with Hf to produce the chlorofluoromethanes and the impure HCl which is contacted with CaCl 2  over active alumina (see abridgement in Division Cl).
Patent GB-736558-A (GB)
Title: Air filters
Inventor: BOYCE GUY BARON
IPC: B01D46/12
Filed: 1953-05-19
Abstract: 736,558. Separating oil particles from air. HYDROVANE COMPRESSOR CO., Ltd. May 18, 1954 [May 19, 1953], No. 13996/53. Class 123 (3). A gas and liquid separator particularly for removing oil particles from compressed air consists of a cylindrical casing constructed from intermediate annular sections d and end covers e, f all clamped together on a hollow axial stem g by a head i threaded on to one end of the stem, the other end being threaded into a boss h in the wall of a compressed air storage tank c to which the periphery of cover f is welded. Each section d contains an annular filter pad j of felt material and is provided with a baffle plate n extending downwardly in front of the filter to within a short distance of the bottom of the section. A similar baffle plate is provided in the end cover e. A drainage passage o containing a plug p of the same felt material as that of pad j is provided through the bottom part of each section. Compressed air with entrained oil particles enters an inlet a and passes around baffles n and through filters j, the cleaned air discharging through passages r, s, a non-return valve t and an outlet duct b in stem g into tank c. Oil separated in the pads j trickles down the emergent faces thereof and collects in the bottom of the casing whence the air pressure forces it through plugs p and through a valve 4 which regulates the rate of discharge to an outlet u.
Patent GB-1000722-A (GB)
Title: Comminuting apparatus
IPC: B02C18/00
Filed: 1962-04-11
Abstract: 1,000,722. Movable hopper. E.L.HIGHLEY. April 11, 1962 [April 12, 1961], No. 14022/62. Heading B8S. [Also in Divisions A4] A hopper 4. of a food comminuting apparatus (see Division A4) is withdrawable from the end of a chamber 34 by means of a toggle mechanism 42; a gristle shearing ring 40 is removably mounted in the throat 24 and a baffle 35 is also provided to restrict the inlet of the chamber and prevent recirculation of comminuted food. Specification 956,714 is referred to.
Patent GB-215204-A (GB)
Title: Improvements in tennis court marker
IPC: A63C19/08
Filed: 1923-05-28
Abstract: 215,204. Murray, M. K. May 28, 1923. Lawn-tennis markers.-A tennis court or like marker has a number of radial paddles on the dipping wheel for agitating the fluid within the tank and is provided with means for automatically cleaning the marking belt on its return course from the forward or marker wheel to the tank. The marker is supported on two traction wheels 10 at the rear and on a marker wheel 5 at the front. An endless marking belt 26 passes round the marking wheel and is led over pulleys 19, 22 to a paddle wheel 17 situated within the fluid tank 2. The pulley 22 may be adjusted to tighten the marking belt by means of a slotted link 23 clamped to a side member 1. A belt-cleaning roller 29 may be placed in or out of contact with the belt as desired, by means of a slotted link 30.
Patent GB-593556-A (GB)
Title: Improvements in marine reversing gears
IPC: F16H3/00
Filed: 1945-06-05
Abstract: 593,556. Reverse gear. MABEY, A. G. June 5, 1945, No. 14157. [Class 80(ii)] In a sliding bevel reverse gear, the operating lever is arranged to free a clutch during the change of direction. Operation of a lever 21 slides the bevel pinions 16, 17 axially on shaft 13 to engage selectively with driving bevel 12 for forward or reverse motion. As lever 21 is moved, roller 22 moves along plate 25 to depress plunger 23 and thus withdraw clutch member 34 through bell crank 26, link 29 and yoke 30. Bevel 12 is driven from driving shaft 1 by bevels 6, 7 and spur gears (not shown) which may form a reduction gear. An alternative method of depressing plunger 23 may comprise a toothed rack and segment mechanism.
Patent GB-601256-A (GB)
Title: Improvements in or relating to the welding together of films or sheets of thermoplastic material
IPC: D05B17/00
Filed: 1945-06-05
Abstract: 601,256. Compound sheet materials. HAIM, G., and ZADE, H. P. June 5, 1945, No. 14172. [Class 140] [Also in Group XVII] Sheets or films of polythene or like thermoplastic material of low loss angle and dielectric factor are welded together over certain areas only by high frequency electric field welding by applying to the outer surfaces of the polythene a film of polyvinyl chloride or other material of high loss angle covering only those areas to be welded. The polyvinyl chloride may be cut from film or sheet in the form desired, or may be applied by coating, stencilling, or printing. The pressure may be applied by metal plates or rollers constituting the electrodes. Specification 592,960 is referred to.
Patent GB-290583-A (GB)
Title: Improved method of and apparatus for artificially illuminating objects
IPC: G03B15/02
Filed: 1928-05-14
Abstract: 290,583. Bertling, H. May 14, 1927, [Convention date]. Low-pressure metallic-vapour apparatus; vacuum tubes.-In a system of lighting in which a number of different coloured sources of light are employed, violet or blue rays are produced by a mercury vapour arc lamp I, green rays are produced by mercury vapour arc lamps II made of yellow or green glass or provided with exchangeable yellow or green glass filters a, and yellow and red rays are produced by sodium-potassium vapour lamps III. The sodium-potassium alloy may contain about 23 per cent sodium and 77 per cent potassium, and the tubes may be filled with a gas such as neon. Specification 174,747, [Class 75 (iv), Lamps &c. Kinds &c. of ], is referred to.
Patent GB-710600-A (GB)
Title: Improvements in or relating to voice frequency signalling system
IPC: H04Q1/45
Filed: 1952-06-06
Abstract: 710,600. Voice-frequency signal receivers. STANDARD TELEPHONE & CABLES, Ltd. June 6, 1952 [July 10, 1951], No. 14314/52. Class 40 (4)  A receiver for two voice-frequency signals has a separate receiving circuit for each signal, the unwanted signal in each circuit being suppressed by the frequency-selective negative feedback of an amplifying valve which has cathode circuit tuned to the unwanted frequency. In the arrangement described the receiver descriminates between pure signals and signals occurring simultaneously with other frequencies. As shown, incoming signals at a transformer T1 are applied over a buffer amplifier V1 and. a transformer T2 to a fourwire terminating set or a two-wire line. Signals from transformer T1 are also applied to valve V2 which has its cathode circuit tuned by a rejector circuit L1, C1 so that one signal frequency and any spurious frequencies are fully amplified and supplied to a signal receiving circuit over a transformer T3. The unwanted signal frequency suppressed by valve V2 is obtained from the rejector circuit L1, C1 and energizes a further valve V3 which is tuned by L2, C2 in its cathode circuit and suppresses only the signal frequency acceptable to valve V2. The output of V3 consists primarily of a single signal frequency and is applied to a second receiving circuit over a transformer T4. In the receiving circuits the two signal frequencies each control a biased relay X1, X2 over an acceptor circuit C3, L3 or C4, L4 and a rectifier W1 or W2. Spurious frequencies present in the output of valve V2 are rectified at W3 and energize guard windings a2, b2 on the two relays, the signal frequency being eliminated by a rejector circuit C5, L5. The valves V2 and V3 have high mutual conductances and function as-limiters, the resultant harmonic distortion being filtered off by shunt  condensers C6 and C7 respectively.
Patent GB-102703-A (GB)
Title: Improvements in Sealing Devices.
Inventor: GARBIS SPIRO DENIS
IPC: F16B41/00
Filed: 1916-01-17
Abstract: 102,703. Garbis, S. D. Jan. 17, 1916. Seals.-A sealing-device for apertures giving access to screws or other locking- means comprises a flanged metal body member b adapted to be embedded in position and having an undercut groove d, into which an expansion disk f is forced. Figs. 5 and 6 show a modified form of body member and expansion disk.
Patent GB-411283-A (GB)
Title: A process and device for the production of concrete and the like pipes
IPC: B28B21/30
Filed: 1933-05-18
Abstract: 411,283. Moulding pipes in centrifugal machines. NIGG, H., Hergiswil, near Lucerne, Switzerland. May 18, 1933, No. 14372. Convention date, May 20, 1932. [Class 87 (ii).] In a process of moulding or lining pipes, the concrete or like material is introduced between two concentric rotating cylinders and is packed initially by the rotation, and then thrown outwards by centrifugal action against the outer cylinder and at the same time compressed from within by the expansion of the inner cylinder. In the illustrated form the pipe material is charged into the annular space between a cylinder 13 and an expansible core while the apparatus is rotating slowly. The cylinder is clamped between a fixed headstock 29 and a removable headstock 16 which is fixed in position by the pin 81. The core comprises overlapping segmental plates slidably mounted on the radial arms 10 and having weights 11 attached to them so that the core as a whole expands under centrifugal force when the apparatus is rotated rapidly. After completion of the charging and initial packing, the rotation is speeded up whereby the concrete is forced outwards centrifugally by the rotation and in addition is compressed by the expanding core. Spring latches 25, Fig. 5, may be used to maintain the core in its expanded position automatically while the pipe is setting. The outer surface of the core may be coated with a wash of water and cement to produce a smooth interior to the pipe or may be coated with a quick-setting cementitious material such as cement and plaster-of-Paris to facilitate separation of the core from the pipe. In some cases a pro-cast concrete pipe may be used as the outer mould in order to produce multi-layer pipes. Reinforcement can be laid inside the pre-moulded pipe in this case for embedding in the inner layer.
Patent GB-774245-A (GB)
Title: An improved sealing ring
IPC: F16L23/22
Filed: 1955-05-19
Abstract: 774,245. Joint-making packing. PNEUMATIQUES & CAOUTCHOUC MANUFACTURE KLEBER COLOMBES. May 19, 1955 [May 19, 1954], No. 14481/55. Class 122 (3). Sealing rings for the joints of pipes conveying aromatic hydrocarbons, or products, such as illuminating gas, containing these hydrocarbons, have at least the parts of the rings sealing the gap between pipes made of vulcanized butyltype synthetic rubber with a preferred hardness of about 65‹ Shore.
Patent GB-493690-A (GB)
Title: Improvements in or relating to floors for ice rinks
IPC: E01C13/10
Filed: 1938-05-16
Abstract: 493,690. Skating-rinks. HALL, Ltd., J. & E., and GUTHRIE, A. G. May 16, 1938, No. 14564. [Class 20 (i)] A method of constructing ice skating-rink floors comprises laying battens 4 longitudinally of the floor at predetermined intervals, filling the intervening spaces with sand, covering the battens and sand with suitable paper or the like 6, placing tiles 7 on the battens, and supporting reinforcing rods 8 on the tiles transversely of the floor, supporting the cooling pipes 9 transversely on the reinforcing rods, and enclosing the cooling pipes, reinforcing rods, and tiles in a monobloc layer of concrete, cement or the like 10. With this construction free movement is provided for the concrete layer 10 without the necessity for expansion joints provided when the floors are constructed in block form.
Patent GB-1140602-A (GB)
Title: Improvements in launching posts and in the remote control of missiles
IPC: F41A27/06
Filed: 1966-04-01
Abstract: 1,140,602. Rocket launching and guiding installation. SOCIETE D'APPLICATIONS DES MACHINES MOTRICES. 1 April, 1966 [6 April, 1965], No. 14654/66. Heading F3C. An installation from which missiles are launched and then guided to their targets comprises a separate aiming device 6 and a manually controlled teleguiding device 15, each of these devices including a sight and means for interconnecting the sights for maintaining the line of sight of the sight of the teleguiding device on the target at any moment by means of the sight of the aiming device. The aiming device 6 and a seat 7 for the laying gunner is mounted on a platform 1 which is rotatable about a vertical axis. A horizontal shaft 3 is also mounted on the platform 6 and carries a pair of rockets 5, rotation of the aiming device in elevation by means of a manipulator 9 causing a corresponding rotation of the shaft 3. The platform 1 carries a seat 11 for the teleguidance gunner. The teleguiding device is connected, as by a parallelogram of points of articulation, to the aiming device 6, such that the teleguidance gunner can guide the rockets on to the target. The laying gunner may be replaced by a remote control device in a central firing post.
Patent GB-808881-A (GB)
Title: Improvements in and relating to machines for wrapping articles
IPC: B65B11/34
Filed: 1954-05-19
Abstract: 808,881. Wrapping machines. TURNER, R. Aug. 19, 1955 [May 19, 1954], No. 14695/54. Class 94(1). A machine for wrapping small articles, such as toffees, in one or more layers of material secured by twisting at opposite ends, comprises a continuously rotating disc B having a plurality of equally spaced pockets 2 extending through the disc, each pocket 2 carrying one of the articles 4 to the wrapping position, a and plunger 3 operable in synchronism with the disc B such that it does not interrupt the rotational movement thereof, for moving the article from its pocket 2 in the disc B to the wrapping means. There may be a plunger 3 for each pocket 2, the plungers rotating with the disc. Alternatively, as shown, there may be only a single plunger 3 adapted through linkages to have both vertical and lateral movement during each stroke of each pocket in the disc B. As each article 4 moves upwards against one or more layers of wrapping material H it is gripped between a pair of continuously rotating arms 17 that are momentarily opened for this purpose by cam means 22. An abutment surface 24 also moves, momentarily, into a position between the arms 17 to position the article correctly therebetween. This gripping action causes the wrapping material H to cover the top and two sides of the article 4. A foot 26 then tucks in one flap of the wrapper and as the arms 17 continue to rotate clockwise about a shaft 19 the remaining flap is folded over by a stationary member 28. During the rotation of the arms 17 about the shaft 19, the projecting ends of the wrappers around each article are gripped by means that rotate with the articles 4 and at the same time, that rotate about their own axes so as to twist the wrapper ends, said means also sliding along their own axes to allow for the reduction in wrapper lengths on twisting. As the cam means 22 causes the arms 17 to open, a member 46 ejects each wrapped article onto a shoot 45. The wrappings H are fed together as overlapping webs from separate rolls and are severed by a knife operated in synchronism with the movement of the disc B and plunger 3. To stop the wrapping machine, should the paper feed be interrupted, a spring loaded feeler arm may bear against the webs and any movement of the arm beyond a predetermined limit due to a break in the webs, or a slackening of the tension therein, is used to open the circuit of the electric motor driving the machine.
Patent GB-910934-A (GB)
Title: Graphite silver compacts
IPC: C22C32/00
Filed: 1959-04-30
Abstract: A sintered metal bonded graphite composition contains 10%-70% by volume of silver and at least 0.1% by weight of at least one of the metals calcium, magnesium, barium and strontium.  Minus 200 mesh powders are mixed, pressed and sintered at 1800 DEG  F. and in the examples barium and calcium are introduced into the mixture as silicides.  Specification 834,946 is referred to.
Patent GB-1489134-A (GB)
Title: Process for treating microbial cell material
IPC: C12N1/00
Filed: 1975-04-10
Abstract: 1489134 Microbial cell products STANDARD OIL CO 10 April 1975 [12 April 1974] 14833/75 Heading C3H [Also in Divisions C6 and A2] A process for converting broken microbial cell material to a form acceptable as a food comprises (a) providing a slurry of broken microbial cell material having a pH of 7À5 to 8À0, (b) maintaining the slurry at a temperature of 75 to 95 C. for 5 to 30 minutes and (c) contacting microbial cell material from step (b) with an edible oil having a temperature of from 120-160 C. The practice of the process is applicable to microorganisms classified as bacteria, yeasts and fungi and many examples are provided. Rupture of microbial cells may be effected by an homogenism, a colloid mill, a ball mill or an ultrasonic generator. Examples describe the production of food from yeast cells to yield artificial meat.
Patent GB-1083275-A (GB)
Title: Suppressed carrier modulation system
IPC: H03C1/52
Filed: 1966-04-04
Abstract: 1,083,275. Amplitude modulation; radio navigation; semi-conductor waveform generating circuits. WILCOX ELECTRIC CO. Inc. April 4, 1966 [May 7, 1965], No. 14841/66. Headings H3R, H3T and H4D. [Also in Division G4] A double sideband suppressed carrier modulating system comprises four varactor diodes 70, 72, 74 and 76, Fig. 2, arranged as a normally balanced bridge between input terminals 24 for the carrier wave and an output transformer 118, the capacitances of the diodes being varied sinusoidally by anti-phase input modulating signals applied to terminals 36 and 38. A second similar bridge circuit is supplied with quadrature phase-modulating signals at terminals 32 and 34 to produce a second modulated output at transformer 124. Semi-conductor waveform generating circuits.-The voltage required to produce a sinusoidal variation in capacitance of a varactor diode is a distorted sine wave (208 and 216, Fig. 4, not shown), produced from an input sine wave on line 52, Fig. 6, by means of the network of resistances 158-184 and solid state diodes 190-198 driving a field effect transistor 200 and an NPN transistor 202 supplying an output transformer 204. A variable resistance 168 allows some adjustment of the output waveform. A second similar circuit 44 produces an anti-phase output, and further circuits 40 and 42 produce quadrature phase outputs. Radio direction finding.-A carrier-wave 10, Fig. 1, is modulated by a sub-carrier 14 frequency-modulated by a 30 c.p.s. signal 18, and is fed on line 20 to an omnidirectional aerial. The output also passes to a modulation eliminator 22 which recovers the carrier-wave and feeds it to a modulator 26 which produces two double sideband suppressed carrier signals which have a 90 degree modulation envelope phase difference. These signals on lines 28 and 30 are used by the aerial, in combination with the omnidirectional pattern, to produce a radiation pattern having a directional lobe which rotates at 30 revolutions per second.