baber/WOPTO huggingface dataset:
Patent GB-527472-A (GB)
Title: Improvements in or relating to gas fires
IPC: F24C3/00
Filed: 1939-04-13
Abstract: 527,472. Gas fires. GAS LIGHT & COKE CO., ANDREW, L. W., HOLLIDAY, G. C., and BERRY, E. W. April 13, 1939, No. 11191. Addition to 505,990. [Class 126] In an inclined gas fire according to the parent Specification cobbles or like refractory material simulating coal or coke, e.g., interspersed pieces of insulating material such as fireclay and of heat conducting material such as carborundum, are rested on the refractory rods. A luminous burner connected to but controlled independently of the main burner may be introduced at the bottom of the combustion chamber to give a flaming effect. Specification 532,097 also is referred to.
Patent GB-1341240-A (GB)
Title: Diamides
IPC: C07D239/04
Filed: 1971-04-23
Abstract: 1341240 Aerosol BOEHRINGER INGELHEIM GmbH 23 April 1971 [24 April 1970] 11201/71 Heading C4X [Also in Division C2] Aerosol compositions contain a fungicide of formula wherein X is -(CH 2 ) 2 -, -(CH 2 ) 3 - or -CH(CH 3 )CH 2 -, Y is (a) -(CH(Z)-, in which Z is hydrogen, 2-pyridyl, 2-furyl, phenyl or chlorophenyl, (b) a spirocyclopentyl or cyclohexyl-methylene group, the cycloalkyl ring being optionally substituted by up to three C 1-4  alkyl groups, or (c) -(CH 2 ) 3 , when Y is -(CH 2 ) 2 , or an acid addition salt thereof. An exemplified composition contains, in addition to the fungicide, N-methyl-pyrrolidone, Frigene (Registered Trade Mark) and sesame oil.
Patent GB-267738-A (GB)
Title: Improvements in train control systems
IPC: B61L3/22
Filed: 1926-04-29
Abstract: 267,738. Clark, T. E., and Clark, J. E. April 29, 1926. Electric oscillations, producing.-In a railway signalling system, oscillating currents of two frequencies are supplied to the track rails by a generator comprising two thermionic valves and tuned circuits, the wave length being determined by one of said valves. The frequency is varied according to traffic conditions by opening and closing circuits including condensers in the valve cuits. The track relay 10 at the entrance end of a section is polarized and the battery-reversing switch 90, 91 is controlled by the signal of the section ahead. A relay 13 is energized only whilst a train is on a section and controls the generator circuit, which includes also an armature a of the relay 10. Oscillatory currents are thus generated only if a train is on the section and the section ahead is clear. The generator comprises a transformer 8 supplied from mains 5, 6, and having three secondary windings, of which 17, heats the filaments of two valves 15, 16; the plate circuit of valve 15 is supplied from coil 27 and includes transformer winding 31 shunted by a condenser 47 and also by condenser 83 if relay 81 is energized. Coil 48 of transformer 31 is connected to the grid of valve 16, the plate circuit of which is fed from coils 27, 28 of transformer 8, and includes the primary 35 of a transformer which supplies a series of other transformers 58 connected to the rails of the section A at intervals in order to insure substantially uniform current conditions throughout the section. Relay 81 is energized only if the track relay is energized by currents of one polarity and varies the periodicity of current generated by the valve 15 by putting condensers in shunt to coils 31, 35. The frequency is determined by the valve 15 which is independent of changes in the rail circuits due to a train at different points along the section.
Patent GB-927266-A (GB)
Title: Improvements in scoop assemblies
Inventor: WREN CLYDE EUGENE
IPC: E02F3/43
Filed: 1962-03-26
Abstract: 927,266. Shovel assemblies. DANUSER MACHINE CO. March 26, 1962, No. 11440/62. Class 68 (1). In a scoop assembly valve means 24 are provided for the inter-controlling of rams 27, 28 and latch means 40, 41, the rams and the latch means being pivotally connected at 31 and 34 and co-operating with stop surfaces at 41-44, respectively, on the end plates 17 to control positioning of the scoop relative to a tractormounted supporting frame during use of the scoop.
Patent GB-400853-A (GB)
Title: Improvements in or relating to heat exchange apparatus such, for example, as evaporators for refrigerating purposes
IPC: F25B39/02
Filed: 1933-04-19
Abstract: 400,853. Refrigerating ; coil-tube heat-exchangers. SULZER FRERES SOC. ANON., Winterthur, Switzerland.-(Assignees of Kobi, R., Rapperswil, Berne, Switzerland.) April 19, 1933, No. 11455. Convention date, May 20, 1932. [Classes 29 and 64 (iii).] A heat-exchanger such as the evaporator of a refrigerating-machine comprises headers 1 and 2 connected by rigid non-helical pipes 4 and also by pipes 3 helically wound round the rigid pipes. Refrigerant may be delivered from a pipe 5 through pipes 6 to nozzles 7 in the lower ends of tubes 3 or to intermediate parts of the tubes. The refrigerant rises and is partially evaporated in tubes 3 and the vapour is led off from header 1 while the liquid returns to header 2 through tubes 4. Tubes 4 may be heat insulated, for instance bv a vacuum jacket. To construct the apparatus one end of each pipe 4 is welded into an aperture provided in one header. Helical tubes 3 are now placed around the pipes 4 and rotated round them so that one end of each helical pipe is driven into an aperture provided in the header already welded to the rigid pipes. The second header is now welded to the rigid pipes and the helical tubes rotated in the reverse direction so that their free ends enter apertures in the second header. The helical tubes are then welded at both ends to the headers to complete the construction.
Patent GB-797131-A (GB)
Title: Improvements relating to belt conveyors
IPC: B65G17/02
Filed: 1954-04-21
Abstract: 797,131. Endless-belt conveyers. NAPIER, D. July 15, 1955 [April 21, 1954], No. 11457/54. Class 78 (1). An endless belt conveyer consists of an endless belt having trolleys or carriages fixed at intervals along its lateral edges, the trolleys or carriages along one edge being independent of those along the other edge, the trolleys or carriages running on respective tracks or cables, the spacing of which is adjusted to cause the belt to run flat or with a slight curvature, or with a greater curvature to form a trough or closed tube, according to requirements, the belt being driven by one or more associated chains. In one form, Figs. 1, 5, an endless belt disposed in upper and lower runs 1 and 2 is provided at intervals along both its edges with trolleys 3 each equipped with a vertical roller 4 and a horizontal roller 5. These rollers engage stationary tracks 6, the tracks for opposite edges of the belt being close together on the upper run to form the belt into a tube and being spaced apart on the return run so that the belt hangs, inverted, in a trough surrounding the upper run. Brackets 7 on the trolleys are connected to a pair of endless chains 8, the brackets of trolleys on opposite edges of the belt being at different elevations so that they overlap on the upper run. The upper run of the belt is opened out or closed up where required for discharging or feeding by divergent or convergent portions of the tracks 6, rollers being disposed to engage the chains 8 at the points of commencement of divergence or convergence. Fig 5 shows the arrangement of guide tracks 6 for the lower run where a curve is negotiated, rollers 15, 16 being disposed to engage the chains 8 where sudden changes of direction occur. In a second embodiment, Fig. 2, the belt is attached at intervals to an articulated structure consisting of trolley portions 9, 10 pivoted to a central portion 11. The trolley portions have a single roller 12 or a pair of rollers 12, 14 disposed at right angles to one another, these rollers engaging stationary tracks 13. A single endless driving chain 8 is attached to the central portions 11.
Patent GB-230312-A (GB)
Title: Improvements in slewing gear for drag line excavators, grab excavators, revolving shovels and the like
IPC: E02F9/12
Filed: 1924-05-09
Abstract: 230,312. Lobnitz & Co., Ltd., and Bedgood, H. O. May 9, 1924. Grab machines; scoop-arm machines; scraping- apparatus.-Slewing gear for a drag-line excavator. grab excavator, revolving shovel or the like comprises a mechanically operated winding drum on the turntable of the machine, a stationary circular frame and a rope passing round the drum and the frame, the rope being doubled and endless and having its looped ends secured to a stationary part of the machine. The underframe 1, mounted to run on rails, has a roller race, carrying the turntable 3, and a circular frame 4 comprising two channel bars 4a, 4b. The turntable 3 is recessed to receive two double sheaves 5, 5<a> of equal diameter, one 5 being mounted slightly higher than the other, so that their lowest parts are in the horizontal planes through the channel bars 4a, 4<b> respectively. The latter have openings 6<a>, 6b just inside which are mounted sheaves 7, 7. A two cylinder engine 8 on the turntable 3 drives a winding drum 11 and two jockey pulleys 12, 12a are adjustably mounted by means of couplings 13, 13<a> on the frame 1 for anchoring and varying the tension in the slewing rope X which is doubled and endless. Leaving the pulley 12a the two plies of rope come together and are led round sheave 7, out through opening 6a, then round the upper channel 4<a> to the sheave 5. Passing over this. they are led round the drum 11 and round over sheave 5a to the lower ring 4<b> round which they describe a circle. back to sheave 7a and pass through the opening 6<b> to the pulley 12. Slewing is effected by winding rope in on one side and paying it out on the other.
Patent GB-114930-A (GB)
IPC: F01L7/02
Abstract: 114,930. Thomas, W. L., and Edwards, T. May 26, 1917. Regulating; valves.-In a two-stroke-cycle engine, a charge from a carburettor is drawn into the crank case through the pipe F, valve E, and pipe G, to be followed by a charge of air which enters the valve through the port h. At the end of the outstroke, when the port e of the valve passes the port a, the air enters the cylinder followed by the combustible. A slide valve K worked by a rod k, Fig. 4, controls the effective area of the port e when it passes the port a. A modified form of engine having a slide valve worked by a cam instead of a rotary valve E is described.
Patent GB-447798-A (GB)
Title: Improvements in or relating to folding lath shutters for doorways and the like
IPC: E06B3/48
Filed: 1935-04-15
Abstract: 447,798. Collapsable shutters. POWNER, E. D., and POWNER, W. D., 13 Rockingham Street, Leeds. April 15, 1935, No. 11541. [Class 45] Folding-panel shutters in which the panels are mounted on a collapsable gate and are hingedly connected by linking strips, are provided with means to enable the shutter to be extended so that all the panels lie in one plane, without self-locking occurring. The panels 1 have scrolls engaging in similar scrolls in linking strips 2, alternate linking strips being secured to alternate pickets 3 of the collapsable gate. The free linking strips may have their pivotal connections with the panels 1 located forwardly of the corresponding connections of the panels with the linking strips connected to the gate pickets so that when the panels lie in one plane an effort applied to slide the gate results in the application of a couple to the panels causing them to fold face to face and back to back in accordion fashion. Flat or spiral springs such as 4 or spring pressed plungers may be mounted on the free pickets to engage the free linking strips when the gate is shut so as to initiate the folding movement of the panels when the gate is opened. The linking strips lie all on one side of the plane of the panels.
Patent GB-115653-A (GB)
IPC: H01M6/24
Abstract: 115,653. Schuster, R. March 12, 1917. Arrangement.-A two-fluid cell is provided with a tubular device g for receiving waste products. The tube g stands within the porous pot c and has openings i at the level of the electrolyte I and opposite corresponding openings h in the carbon element f. The electrolyte II in which the zinc element c is immersed stands at a higher level than the electrolyte I, and percolates more rapidly through the thin upper portion d of the porous pot than through the lower part. The pot c stands on lugs b formed on the cell a. Specification 113,984 is referred to.
Patent GB-820062-A (GB)
Title: Airflow directional indicator
Inventor: CHENEY GORDON H
IPC: G01M9/06
Filed: 1957-04-09
Abstract: 820,062. Fluid flow direction indicators. BOEING AIRPLANE CO. April 9, 1957, No. 11589/57. Class 97(2) [Also in Group XXXIII] Apparatus for determining a local direction of airflow comprises (for a wind tunnel) a pillar 8 movable transversely through the tunnel 9 by means of a screw mechanism 80, 81 which slides the pillar axially within a mounting 82. The mounting 82 is pivoted at 85 for rotation by a drive 86, transversely to the axis of pillar 8. A non-rotative member 3 is pivoted at 30 to pillar 8 for pitching movement under the control of a screw mechanism 31, 32, the shafts 31 and 81 being driven by a motor 40 through a differential 4 for simultaneous or differential rotation to adjust the vertical position and inclination of member 3. Member 3, Fig. 2, carries an extension 33 provided with bearings 10 for a rotatable probe 1 which encloses forwardly opening conduits 21', 22 respectively connected through rotary seals 27, 28 with further conduits 23, 24 in turn connected to a pressure comparing device which generates an electric signal to operate through lead 41 an indicator (not shown). The exterior of the probe is provided with helical vanes 13 to create continuous rotation of the probe and the rear face of the probe carries notches (not shown) which co-operate with spring loaded plungers 5. The plungers are withdrawn in succession from engagement by the notches by means of solenoids 53, 54 in order that step-by-step rotation of the probe is permitted to indicate the angular position, about the axis of the probe, of the open ends of conduits 21, 22 at which a pressure difference occurs. By adjusting the position of the probe until no pressure difference is indicated, a means is provided whereby the angular position of the probe indicates the exact direction of local airflow. Specification 820,061 [Group XXXIII] is referred to.
Patent GB-961886-A (GB)
Title: Circuit arrangement for maintaining the synchronization of a television receiver
IPC: H04N7/10
Filed: 1962-03-27
Abstract: 961,886. Television. FERNSEH G.m.b.H. March 27, 1962 [April 1, 1961], No. 11613/62. Heading H4F. The object of the invention is to ensure that a television receiver which is connected to a low impedance video signal source via a switching device receives synchronization pulses when the switching device is operated so that the video signal is not applied to the receiver. This object is achieved by continually applying to the receiver auxiliary synchronization pulses from a high impedance source which is effectively short-circuited by the low impedance of the video signal source when the latter is applied. In a basic form of the invention (Fig. 1, not shown), the auxiliary source is applied to each of two receivers which may receive any one of three video signals by way of a cross-bar switching system. In a more detailed embodiment (Fig. 2), a receiver (not shown), connected to the channel 7 receives any one of three video signals through input channels K1, K2, K3 and relay contacts Sch1, Sch2, Sch3. The auxiliary source is applied to the signal grid 1 of one stage of output valve 5 through inverter 13 and high impedance 8, 9. The time constant of this impedance is chosen to be equal to the time constant of the grid leak resistor 15 in association with the stray capacitance of the valve 5. When a video signal is applied by energizing the corresponding relay the resistance between the point P1 and earth is small compared to the resistance 8 and the auxiliary source is effectively short-circuited. The valve 5 may be replaced by a transistor. The amplitude of the auxiliary synchronizing pulses is preferably half that of those included in the video signal.
Patent GB-1357841-A (GB)
Title: Ultrasonic testing
IPC: G01N29/38
Filed: 1972-03-13
Abstract: 1357841 Ultrasonic inspection BRITISH STEEL CORP 13 March 1973 [13 March 1972] 11625/72 Heading H4D A method of testing an article comprises transmitting a test pulse into the article from a first probe via a liquid coupling, actuating the first probe to receive reflections indicating a flaw, and actuating a second probe to receive at least part of the test pulse transmitted through the article to detect imperfect coupling or pulse transmission. For inspecting the seam weld 3 of steel tubing, two transducers 1, 2 coupled to the tube via a water film are arranged either side thereof. Oscillator 9 energizes a transducer 1 from a transmitter 10, reflections from faults in the weld pass receiver 11 and gate G1 which is enabled by the transmitter pulse (suitably delayed). A pulse output at terminal 4 indicates a flaw. The transmitter pulse after a further suitable delay opens gate 8 such that any pulse received after transmission through the weld is detected by transducer 2, receiver 12 and gate 8. Lack of a pulse at terminal 13 indicates a failure in the coupling. The procedure is alternatively reversed with transducer 2 transmitting. The gate pulse delays are initially set up by using a calibrated tube with false flaws. In a modification, (Fig. 5) not shown, two further transducers are added which transmit at an inclined angle to the weld. These are used to detect transverse flaws and are energized at the same time as the other transducer on the same side of the weld. Reception of a pulse at either extra transducer after any transmission indicates a fault. Lack of reception of a through transmitted pulse from either transducer on one side by the coupling test transducer on the other side indicates a fault in coupling or transmission.
Patent GB-581247-A (GB)
Title: Improvements in or relating to silencers for exhaust gases which also act as spark or flame arresters
IPC: F01N1/10
Filed: 1944-06-19
Abstract: 581,247. Exhaust silencers. HEATHER, F. June 19, 1944, No. 11649. [Class 7 (ii)] In an exhaust silencer which also arrests sparks and flames, an expansion chamber 1 is lined with sound absorbing material and the gas enters through a perforated or reticulated tubular member 6 closed at one end by a plate 10 and arranged so that the gas streams flow over the sound absorbing covering which may comprise asbestos rope 3 wound on a perforated or reticulated tube 2. The outlet may comprise a chamber similar to the chamber 1 but inverted, the two being connected by conical members 14 and a perforated or reticulated tube 13 surrounded by helically wound asbestos rope 16, longitudinally extending turns 17 of the rope being - also wound round two spiders 18. ThÚ gases may enter the tube 13 direct as shown dotted, the first expansion chamber being omitted.
Patent GB-154129-A (GB)
Title: Improvements in or relating to davits for ships' lifeboats and the like
IPC: B63B23/18
Filed: 1920-04-27
Abstract: 154,129. Hancock, E. April 27, 1920. Davits.-Relates to improvements in ships' davits of the kind wherein pairs of davits are provided with oppositely-arranged arcuate ratchets, and with pawls adapted to co-act with said ratchets, so that the davits are restrained against return motion when the boat is being swung outboard, and are adapted to be locked by said ratchets and pawls in the inboard position. The ratchets e extend through 90 degrees and the pawls j through 45 degrees, each pawl being formed with two faces m and k at its free end, one face k functioning to prevent return motion during the " outboard '' action, and the other m to lock the davit a in an inboard position by abutting against an end stop o on the ratchet. The ratchet has a flange f for protecting the teeth and a flange d for securing to the deck b. The pawls are carried by pins h integral with jaws g clamped to the davits, stops g being formed on the jaw g underneath the pin h, with faces r and p for taking the weight of the pawl during the outboard and inboard action respectively. The pins h may be integral with the davits if desired, or the position of ratchets and pawls may be reversed.
Patent GB-809989-A (GB)
Title: Improvements in or relating to ignition systems for internal combustion engines
IPC: F02P3/055
Filed: 1957-04-10
Abstract: 809,989. Ignition systems. GENERAL MOTORS CORPORATION. April 10, 1957 [April 19, 1956], No. 11716/57. Class 7(4) A p-n-p or n-p-n junction transistor 28 controls the current flow in the primary 32 of the ignition coil. The transistor conducts when an interrupter 38 connects its base b to a tap 40 on a resistance 42. When the current ceases the stored energy in the ignition coil will be released for energization of the spark plugs. The characteristics of the transistor are such that a current of about 8 to 10 amperes will flow whenever the base b is sufficiently negative with respect to the emitter e and the emitter e is sufficiently positive with respect to the collector. Thus the inductance of the primary circuit can be reduced to a lower value than is used in present day systems. The transistor will not pass current from the emitter e to a collector c when the voltage in either direction approaches 1000 volts if the base b is not supplied with current. The variable resistance 42 may be replaced by a fixed tapped resistance. Alternatively two fixed resistances may be used instead of a tapped restistance. A condenser 46 minimizes voltage surges.
Patent GB-1154106-A (GB)
Title: Apparatus for Converting Pneumatic Signals Delivered to the Inlet of the Apparatus to Outlet Signals Variable According to a Law Other than that of the Inlet Signals.
IPC: F15C4/00
Filed: 1967-03-13
Abstract: 1,154,106. Fluid-pressure servomotor systems. O.B.S.A. S.p.A. March 13, 1967 [March 15, 1966], No. 11726/67. Heading G3P. An apparatus for the conversion of pneumatic signals comprises a relay 2 having an inlet and outlet with a by-pass 5 for discharging part of the air fed to the inlet, a nozzle 20 connected with the by-pass and moved by a lever 15 for interception by a cam 7, a receiver 8 responsive to the pneumatic signals for actuating the cam, and means 22 responsive to pneumatic pressure at the outlet of the relay to displace the nozzle from the intercepted position, the lever 15 being resiliently biased to urge the nozzle towards the cam 7. The profile of the cam 7 is shaped to provide output signals which vary according to a law different from that of the input signals and may, for example, convert a quadratic signal to a linear or logarithmic one. The relay 2 has a constant pressure air supply while each of the devices 8 and 22 consists of three capsules against which the cam 7 and lever 15 are spring-loaded. A spring 24 provides the bias for the lever 15 and allows the reaction from the air flow against the cam to lift the nozzle 20 to a balanced position in which friction is avoided. For every position of the cam 7 there is a corresponding position of the lever 15 about its pivot 16 and hence a given strength of signal at the outlet. The apparatus may have its input connected to a pneumatic transmitter responding to the pressure drop across an orificed plate in a water stream and its output to a flow-rate gauge with a linear scale.
Patent GB-117791-A (GB)
IPC: B21G3/00
Abstract: 117,791. Sinclair, J., and Russell, J. G. April 5, 1918. Cutting nails; shear-blades. - To avoid waste of metal in the manufacture of dog spikes or nails of the kind described in Specification 16776/92, the cutter is formed with an additional cutter or " checking " cutter which cuts the back of the head on the second piece, so salving it. Fig. 1 shows the tool in which b is the main cutter, c the " bill " cutter, and a the " checking " cutter, The blanks are cut as shown in Fig. 2.