baber/WOPTO huggingface dataset:
Patent GB-999429-A (GB)
Title: Improvements in or relating to transmission line branching systems
IPC: H04B3/44
Filed: 1962-05-03
Abstract: 999,429. Telephone transmission systems. WESTERN ELECTRIC CO. Inc. May 3, 1962 [May 4, 19611, No. 16943/62. Heading H4R. In an underwater cable system in which a portion of the cable is duplicated to provide an alternative route, e.g. in a shallow water area where the cable is liable to damage by trawling equipment, switching between the alternative cables is accomplished by interrupting the transmission on the unwanted cable by means of diode networks responsive to the operating power voltage level. Fig. 1 shows one embodiment in which a main cable 10 is connected to two branch cables 11 and 12. Signal transmission is via the hybrid transformer 32, the D.C. operating power being blocked by capacitors 29, 30 and 31, and protection against surge voltages provided by discharge tubes 37, 38, and 39. Power to energize the repeater is provided by batteries 16 and 18 while battery 17 and meter 15 provide monitoring facilities on the unused cable. Switching of the cable is accomplished by operation of switch 13 which switches battery 16 on to the required cable, e.g. 11, which together with battery 18 forward biases the diode network, e.g. 23, in the required cable, while battery 17, of lower potential than battery 16, is applied to the unwanted cable, the potential of battery 17, together with the potential appearing at point 27 due to current flow in cable 11, back biases the other diode network, e.g. 22, and so prevents energizing power from flowing in the unwanted cable, e.g. 12. A preferred form of diode network is shown in Fig. 2 and comprises a number of series parallel connected diodes together with resistors 14 arranged so that a large number of diodes would require to fail before the network was rendered inoperative. Fig. 3 shows an alternative embodiment in which both branch cables may be energized only one branch cable being connected in series with the main cable the other cable (e.g. 11) being supplied from reverse polarity battery 46, the return to ground being through diode 43 which is rendered conductive by the polarity of battery 46. Current flow through the power circuits of the repeater is maintained in the appropriate direction irrespective of the polarity of the battery applied to the cable by the provision of a bridge rectifier 45 in which the repeater load is represented at 47. A further alternative involving a resistive matching pad to couple the branch cables to the main cable and high and low pass filters to separate the signal and power supply current is shown in Fig. 4, in this arrangement the switching circuits are isolated one from another and may each be accommodated in the branch cable at a distance from the main cable junction point allowing any fault in the one switching arrangement to be rectified without interfering with the other.
Patent GB-203810-A (GB)
Title: Improvements relating to the automatic compensation of clocks and other pendulum-controlled mechanism
IPC: G05D7/00
Filed: 1922-06-20
Abstract: 203,810. Parkinson & W. & B. Cowan, Ltd., and Beasley, C. H. June 20, 1922. Pendulums.-The rate of vibration of a clock or meter pendulum is compensated for changes in temperature and for pressure by varying the arc of oscillation by means of a restraining bladespring controlled by an aneroid and levers &c. Fig. 3 shows the compensating device in Specification 27981/08, [Class 106, Registering &c.]. The aneroid 13, by means of an adjustable rod 18, moves the spring-controlled lever 16, which has a blade-spring 15 restraining the arc of swing of the pendulum to a greater or less extent according to the distance from the fulcrum at which the spring engages the pendulum. The braking effect is preferably only allowed to vary with the movement around the point of suspension, by engaging the end of the spring in a tapered slot 21 corresponding to the arc of swing, or the spring may have a forked end engaging an inverted frustum of a cone; or other means of engagement may be used to give any required variation in the braking effect on the pendulum. The. point of applications of the rod 18 is adjustable on the lever by means of a sliding piece clamped by a nut 25, and the spring 15 is adjustable between nuts on the lever and is positioned in the vertical plane through the point of suspension at normal temperature and pressure. A pointer 28 and scale are provided to read the adjusted positions of the spring. The gas passes from the meter drum 10 into the chamber 11 around an enclosed air chamber 11a communicating with the aneroid 13, and thence into the aneroid chamber and carlorimeter &c. The varied braking effect may ba effected by altering the free part of a spring acting at a fixed point on the pendulum.
Patent GB-883932-A (GB)
Title: Improved double roller element for jacquard machines
IPC: D03C3/24
Filed: 1960-05-13
Abstract: 883,932. Jacquards. RUTI MACHINERY WORKS Ltd. May 13, 1960 [May 15, 1959], No. 16979/60. Class 142(2) A lifting element for open-shed or other jacquards consists of pulleys 2, 3 round which pass cords 4. The pulleys run on axles 7 carried by cheeks 5 which are joined together along one edge 6 but are unconnected at the other edge; the cheeks can be sprung apart to insert the axles, which have reduced ends of non-circular cross-section to snap into apertures in the cheeks. Alternatively, the margins of square holes in the cheeks can be turned in to enter recesses in the ends of the axles. The pulleys and axles are made of synthetic material, the axles being impregnated with graphite.
Patent GB-202455-A (GB)
Title: An improved sanitary flushing device
IPC: E03D1/12
Filed: 1922-06-20
Abstract: 202,455. Phillipps, M. T. June 20, 1922. Siphon-discharge waterwaste preventers. - The outermost. wall f of a series of concentric chambers at the top of the stand pipe is formed with a recess for the reception of a snifter pipe j<1>.
Patent GB-1068659-A (GB)
Title: Filtering device
IPC: G05D16/06
Filed: 1966-04-19
Abstract: 1,068,659. Liquid filters. N. O. ROSAEN, B. O. ROSAEN, and O E. ROSAEN. April 19, 1966 [Jan. 24, 1966], No. 17006/66. Heading B1D. .A liquid filter comprises a horizontal cylindrical housing 10, having a flange 20 for connection to a reservoir (14) (Fig. 3, not shown), an inlet 26 and two outlets 80 (88), and a vertical cylindrical housing 12, connected to the inlet and outlet sides of housing 10 and divided by a filter element 60 which may be lifted out of place by its handle 74. The filter is so mounted on reservoir (14) that the liquid on the inlet side of element 60 partly fills housing 12, which has a sight glass (78). The element 60 is of vertically pleated form in an epoxy resin frame (Fig. 6, not shown). The upper wall 68 of the inlet passage slopes as shown, so that air bubbles accumulate above the liquid in housing 12, whose removable cap (76) may have an air vent. Flow through the filter is induced by a pump (82) connected downstream of one or both outlets (Fig. 1, not shown). Removal of element 60 permits flow from inlet to outlets through housing 12. In addition, housing 10 incorporates a spring loaded by-pass valve (Fig. 3) whose position, prior to and after the valve by-passes the filter element, is indicated by an external pointer (122) (Fig. 1), a twisted strip (128) converting linear movement of the valve to rotation of the pointer.
Patent GB-1115211-A (GB)
Title: Manufacture of polymeric compositions of the polyurea or polyurea/polyurethane type
Inventor: GAZZARD EDWARD GEORGE
IPC: C08G18/50
Filed: 1965-04-22
Abstract: Polyureas or polyurea/polyurethanes are prepared by reacting an organic polyisocyanate with a polymer or mixture of polymers containing two or more isocyanate-reactive groups, provided that the polymer or at least one of the polymer comprising the mixture of polymers, contains in the molecule at least one group of the formula <FORM:1115211/C3/1> wherein R1 and R2 represent hydrogen or halogen atoms or alkyl groups containing 1 to 4 carbon atoms and R3 represents a hydrogen atom or a hydrocarbon radical.  The polymers containing at least one aminomethyl-tetrahydropyranyl group may be of the polyester, polyesteramide or polyether type and may be obtained by reacting the polyester, polyesteramide or polyether all of which having two or more hydroxyl groups with a 2-aminomethyl-3,4-dihydro-2H-pyran compound.  Suitable polyesters and polyesteramide for reacting with the pyran-type compound are those obtained by reacting dicarboxylic acids and polyhydric alcohols with, if desired, diamines or amino alcohols.  The polyethers may be polymers or copolymers of cyclic oxides or may be those prepared by the polymerization of an alkylene oxide with compounds such as water, glycols and primary monoamine. Exemplified polyethers which are all modified by reaction with 2-aminomethyl-3,4-dihydro-2H-pyran are polypropylene glycol, oxypropylated glycerol and oxypropylated trimethylolpropane. Mixtures of unmodified polyesters, polyesteramides and polyethers with the above-mentioned modified polymers may also be used. Organic diisocyanates, triisocyanates, reaction products of an excess of diisocyanate with polyhydric alcohols, uretedione dimers, isocyanurate polymers of diisocyanates and isocyanate-ended prepolymer compositions may be used.  A cellular material may be produced by incorporating water or a low-boiling inert liquid into the reaction mixture.  Conventional catalysts, surface-active agents, foam-stabilizing agents, plasticizers, fire-proofing agents and antioxidants may also be incorporated into the reaction mixture.
Patent GB-813404-A (GB)
Title: Means for use in the production of ladies' stockings
Inventor: HARRIS GEOFFREY WALTER
IPC: D06C5/00
Filed: 1956-06-01
Abstract: 813,404. Inspecting fabrics. JONES, E. J. June 3, 1957 [June 1, 1956], No. 17018/56. Classes 42 (1) and 42 (2). A form for use in inspecting ladies' stockings after removal from the knitting machine and for removing the splice float from the heel splice comprises a member formed with a channel of curved cross-section which is formed at one end with horns 6 and merges at the other end into a flat portion 2. As shown in Fig. 1, the stocking 9 is arranged so that the rolled welt 8 as disposed over the horns and the stocking hangs inside the channel. The stocking is then drawn over the form so that it is inside out and stretched over the form so that the splice float may be removed with a knife as shown in Fig. 5. The form is pivotally mounted on a trolley 23 which is provided with a surface 26 in which are placed the stocking before or after treatment. The severed ends of the cut float are sheared by a tool 31 and the loose ends are removed by a suction device 29 connected through a flexible tube 30 to the tool 31 and driven by an electric motor 28.
Patent GB-1422304-A (GB)
Title: Penicillins processes for their preparation and their use as medicaments
IPC: A23K20/195
Filed: 1974-04-18
Abstract: 1422304 Penicillin derivatives BAYER AG 18 April 1974 [19 April 1973 8 Sept 1973] 17020/74 Heading C2C Novel compounds I (in which R 1  is H, 1-5C alkyl, up to 8C aralkyl, aryl, substituted aryl or thienyl; A is a group of general formula (in which R 2 -R 7  are as R 1  and may be the same or different); B is a group of formula (in which R 8 -R 10  are H, F, Cl, Br, I, 1-6C alkyl, alkoxy, alkylthio or alkylsulphonyl, NO 2 , sulphamyl, CN, di(1-6C alkyl)amino, 1-6C alkanoylamino, 1-6C alkanoyloxy, 1-6C alkylsulphonamido, CF 3  or OH) ; E is O or S; and C* is a carbon atom constituting a centre of chirality) are prepared by reaction of a compound II (in which R 11 -R 13  are all H or R 11 -R 12  is -C(R 14 ) 2 - and R 13  is H or R 11 -R 12  are H and R 13  is trialkylsilyl or R 11  and R 13  are trialkylsilyl and R 12  is H and R 14  is 1-6C alkyl) with a compound III (in which W is halo, azido or a group of formula Compounds III may be prepared by reaction of compounds IV with a compound W-CE-W. Compounds IV may be prepared by reaction of hydrazine with an appropriately substituted acetic acid ester. Pharmaceutical compositions comprise a compound I together with suitable diluents or carriers and are useful as antibiotics and growthpromoters.
Patent GB-297761-A (GB)
Title: Improvements in thermally operated devices for supporting heavy articles or holding springs in tension
IPC: A62C35/60
Filed: 1927-06-27
Abstract: 297,761. Pettigrew, J. F. June 27, 1927. Applied by springs.-A device adapted, inter alia, to control emergency brakes on vehicles comprises, in the form shown in Fig. 1, a thimble A which is attached by a hook B to a fixed object D and has slotted walls. A plunger E retained in the. thimble by fusible metal J filling up the thimble, and slots is attached by a hook F to, for example, a fire-door H adapted to be closed by a spring I when released by fusion of the metal J. In a modification, the thimble is surrounded by an electric resistance element, so that the metal may be fused by the closing of a switch, or by a cover to which hot air or gas may be supplied. In another modification, Fig. 4, suitable for use with a brake, the thimble A is secured to the vehicle by a bracket S, and the plunger E which is connected to a brake-rod R is moved by a spring N when the metal J is fused. The thimble is surrounded by a cover L to which can be admitted steam, or hot exhaust gases. Alternatively, an electric heating resistance may be embodied in this construction.
Patent GB-108985-A (GB)
Title: Improvements in Operation Tables.
Inventor: ARNOLD JAMES ERNEST
IPC: A61G13/00
Filed: 1916-12-01
Abstract: 108,985. Arnold, J. E. Dec. 1, 1916. Operating-tables.-An operating-table having a detachable top is provided with a folding understructure comprising a pair of crossed frames 1, 2 held in adjusted open position by a jointed stay 6, the top 10 having a number of pins 15 to engage the upper forked ends of the.frame 1 and hooks 13 to rest on the top cross-bar of the frame 2. An extension 12, which can be adjusted at various angles to the top 10, is provided at each side on its underside with a number of hooks 16, any pair of which may be made to rest on the top crossbar of the frame 2.
Patent GB-1249753-A (GB)
Title: Tracking system apparatus and signal processing methods
Inventor: SCOTCHIE LAWRENCE J
IPC: G01S3/786
Filed: 1970-04-10
Abstract: 1,249,753. Photo-electric tracking; sawtooth generator circuits. NORTH AMERICAN ROCKWELL CORP. 10 April, 1970, No. 17258/70. Headings H3T and H4D. In a tracking system and method which utilizes a television camera tube with a reading beam performing a standard line and frame scan, an interval between frame scans (when the video signal output is usually blanked) contains rapid vertical scanning deflections and during at least part of such rapid scanning the video signal output is unblanked, Figs. 6a, 6b. Contrasts corresponding to edges of the target, detected in the rapid vertical scanning deflections, are compared with a variably-positioned gating pulse to yield tracking error correction signals. A cathode-ray tube monitor may be added. . . Azimuth tracking, Figs 5, 10. An azimuth tracking gate G, having a controlled time position in each horizontal scanning line, is produced by a monostable 44 and a circuit 45; tracking error is derived by AND gates 48, 49, gate 48 receiving leading target edge marker pulses -E from video processor 19 and gate 49 receiving lagging target edge marker pulses + E therefrom. Tracking error detection signals M define the variable duration of correction signals N. Correction signal X p  is formed in integrator 71 to realign the tracker and to re-position gate G. Elevation tracking is basically similar in operation to azimuth tracking,the tracking gate being designated GG, tracking error detection signals MM, correction signals NN, and correction signal Y P . Sawtooth deflection circuits, Figs 7, 8, 9. At the end of normal raster scan, rapid vertical scanning V ST  Fig., 7 and simultaneous slow horizontal scanning H ST  is accomplished by respective circuits Figs. 8, 9. In Fig. 8 the normal vertical sawtooth deflection generator 223 is modified by circuit 220: during the positive-going pulse in waveform V CSI  Fig. 7 transistor 221 is turned off to open the charging path for capacitor 222 which is thereby removed from across capacitor 224 and sawteeth V ST  are rapid relative to normal operation; diode 228 provides a path to more completely discharge capacitor 222. In Fig. 9, for generation of horizontal deflection H ST , the addition of circuit 230 modifies the operation of the normal deflection charging capacitor 233; during pulse H PI  constant current source 236 charges capacitor 233, e of H ST  Fig. 7, and for constant-rate and linear slow-sweep charging voltage from that capacitor a current-regulating transistor 237 stage is added.
Patent GB-832565-A (GB)
Title: Epoxy heat-hardenable and heat hardened compositions and a process for their preparation
IPC: C08G59/32
Filed: 1957-05-31
Abstract: In obtaining organic triol tris-(3,4-epoxy-cyclohexane carboxylate)s having the formula <FORM:0832565/IV (b)/1> as described in Specification 822,980, by epoxidizing the organic triol tris (3-cyclohexene-carboxylates) with paracetic acid or acetaldehyde monoperacetate, the following additional triol - (3,4 - epoxycyclohexane - carboxylate compounds are specified:-1,2,6-hexanetrioltris - (1 - methyl - 3,4 - epoxycyclohexanecarboxylate), 1,1,1 - trimethylolethane tris - (6 - methyl - 3,4 - epoxycyclohexanecarboxylate), and trimethylolmethane tris-(1- or 6-methyl-3,4-epoxycyclohexanecarboxylate).ALSO:Organic triol tris-(3,4-epoxycyclohexanecarboxylate) compounds having the formula <FORM:0832565/IV (a)/1> wherein R is a trivalent organic group and R1-R6 are H or alkyl groups having 1-4 C atoms are prepared as described in Specification 822,980, and mixed at 0-25 DEG  C. with an acid catalyst, other than H2SO4, to give a heat-hardenable composition.  Typical triols specified are 1,1,1-trimethylol propane, 1,2,3-propane triol, 1,2,6 - hexane triol, 1,1,1 - trimethylolethane, trimethylolmethane.  Compounds in which the cyclohexane ring is substituted by methyl in the 1 and 6-positions are also mentioned. Besides the triols specified above 1-1 - allyloxy - 2,4,6 - trimethylol benzene, 1 - phenyl - propane - 1,2,3 - triol, and 1,4 - benzylpyran-3,5,7-triol may be used. Suitable acid catalysts are metal halides, their etherates and amine complexes and mineral acids, e.g. phosphoric, polyphosphoric, perchloric, and aromatic sulphonic acids. Solvents for the reaction comprise diethylether, dipropyl ether, 2-methoxy-l-propanol, organic esters, e.g. methyl acetate, ethyl acetate, ethyl propionate; ketones, e.g. acetone, methylisobutyl ketone, cyclohexanone, alcohols, e.g. methanol cyclohexanol, propylene glycol.  In Example (3), 1,2,3-propanetriol tris-(3,4-epoxy cyclohexane carboxylate) was mixed with piperidine-boron trifluoride complex and the mixture cured at 160 DEG C.  The tri-epoxides may be copolymerized with other polyfunctinal compounds, some classes of which are mentioned.
Patent GB-421547-A (GB)
Title: Method and apparatus for production of paper
IPC: D21F1/18
Filed: 1933-06-17
Abstract: 421,547. Shaking-arrangements of paper-making machines. MILNE, S., 38, Lauder Road, Edinburgh, and SONDER, K., 19, Glashuttenstrasse, Hamburg, Germany. June 17, 1933, No. 17289. Convention date, June 17, 1932. [Class 96] The parb of a Fourdrinier machine &c. to be shaken are mounted on springs with high natural periodicity and shake impulses are imparted by mechanism loosely or resiliently connected thereto so that the skaking parts may vibrate freely. The breast roll 1, in bearings 4, 5 is supported on posts comprising laminated springs 7 and vibrates at a frequency, e.g. of over 1000 per minute, which is a multiple of that a casing 12 containing a disc 13 rigid, with a trunnion 2 of the roll 1, and reciprocated as illustrated. The space between the disc 13 and the casing 12 may contain resilient material. Specification 326,330, [Class 96], is referred to.
Patent GB-173245-A (GB)
Title: Improvements in slitting and rewinding machines
IPC: B65H18/20
Filed: 1920-06-25
Abstract: 173,245. Marks, E. C. R., (Cameron Machine Co.). June 25, 1920. Clutches, friction.-The driving-shaft 89 of a paper-winding machine is connected to the driving-pulley 17 by a friction clutch comprising a friction surface 93, carried by a member 94 on the pulley and co-operating with a disc 92<c> which engages a screw 92<a> mounted in a disc 92 secured to the shaft. A worm wheel 91 on the screw engages a worm 90 on a loose sleeve 88 movable longitudinally by a bell-crank 85 which is operated by a hand-lever and engages a pin 85<a> on a collar 86<a> on the sleeve.
Patent GB-560358-A (GB)
Title: Improvements in or relating to ventilators
IPC: B63J2/10
Filed: 1942-12-05
Abstract: 560,358. Ventilators. WELLINGTON TANK CO., Ltd., and DICKSON, R. H. Dec. 5, 1942, No. 17343. [Class 137] A ventilator, especially for ships, comprises an outer casing 3 with an air pipe 1 projecting upwards into the casing which has an air inlet aperture 5, a baffle 10 being arranged between the upper edge of the aperture and the pipe so that water entering the aperture is directed away from the open top of the pipe 1, and caused to swirl round the channel between the casing and the pipe, and is drained off through openings in the floor 2 of the casing. A secondary or rear baffle 13 is arranged at the rear of the channel to prevent opposite streams of water meeting and splashing up into the pipe. An open-topped cylinder 6 is preferably arranged around the vent pipe, and extends upwardly from the floor of the casing so that the space between the casing and the vent pipe is divided into inner and outer channels 8, 7, the baffles 10 and 13 extending between the outer casing and the cylinder 6.
Patent GB-1286387-A (GB)
Title: Method and apparatus for producing crimped filaments or yarns
Inventor: ELLEGAST KONRAD
IPC: D02G1/12
Filed: 1970-04-13
Abstract: 1286387 Crimping fibres and yarns FARBENFABRIKEN BAYER AG 13 April 1970 [24 April 1969] 17352/70 Heading D1F Synthetic, e.g. polyamide, polyester, polyurethane, polyacrylonitrile or polyolefine such as polypropylene, filaments or yarns are crimped by pressing against a heated roller by means of a planar or curved pressure plate arranged to contact tangentially the heated roller and stuffing the filaments &c. thereat under braking in a cavity located behind the plate, crimping being effected preferably at a temperature of 100-200‹C. In the apparatus shown in Fig. 1, an undrawn yarn (or filament bundle) fed by roll 1 is continuously drawn between rollers 2 and 3, then passes over guide roll 4 to crimping apparatus wherein it is pressed by a pivotally mounted, tangentially adjustable, pneumatically loaded pressure plate 6 (which uncorporiates a replaceable wear plate 10 providing four alternative cavities on each face) against the roller 5 over which the yarn is guided smoothly and under tension. After passing the pressure line formed by the plate and roller, the yarn is relaxed and fed (with a small amount of precrimping) to a cavity bounded by pivotally movable, pneumatically loaded stowing and packing flaps 9, 9', which retard, and thereby cause crimping of, the yarn. Loading of the flaps may also be effected by pressure exerted pneumatically on an extension arm of a bracket supporting the plate 6, Fig. 3 (not shown). In the apparatus of Fig. 4, the plate is formed as a roll segment 15 pivotable in a bearing 16, adjustably positioned by a screw 17 and pivotally mounting a stowing and packing flap 18, the assembly being pivotally mounted on a bearing 19. The segment may be loaded in the same manner as the plate 6. The drive to the crimping roller may be stopped automatically in the absence of yarn or filaments between the plate and roller. The yarn &c. may be preheated by one or more passages around the crimping roller before it enters the crimper and/or two or more crimpers may coact with the one roller in order to crimp simultaneously a plurality of yarns &c.