baber/WOPTO huggingface dataset:
Patent GB-658823-A (GB)
Title: Improvements in and relating to earth leakage protection systems for electric motors, cables and other apparatus
IPC: H02H11/00
Filed: 1949-04-29
Abstract: 658,823. Protective cut-out arrangements. BROOKE, W., and BALDWIN, H. T. April 29, 1949, No. 11400. [Class 38(v)] In an earth leakage protective arrangement for a motor or other apparatus, the reclosure of a circuit breaker or contactor is prevented under fault conditions by a lockout relay energized by rectified A.C. which is, or which is derived from, current injected through the fault circuit. The motor B is supplied from lines L1...L3 through a contactor C which is closed by a coil C4 on the operation of a start button g and maintained closed by auxiliary contacts C5. When the contactor C is closed, auxiliary contacts C6 are changed over to connect the secondary winding M4 of a core balance transformer M to a bridgeconnected rectifier R supplying the coil S1 of the lockout and leakage relay S. The unbalance resulting from an earth fault such as that indicated at 12, causes the energization of the winding M4, which through the rectifier energizes coil S1. The relay contacts S2 are opened and the coil C4 is de-energized allowing the contactor C to open. The secondary winding f2 of an " injection " transformer f is now connected by the contacts C6 to the rectifier R as shown and current flows from the winding f2 through connection 20, contacts C6, rectifier R to the neutral point N1 of an inductance A, through winding A1 of the inductance, winding M3, fault path 12, earth and back through connection 15 to secondary winding f2. Thus the relay coil S1 is energized from the rectifier R by the current through this circuit and the relay contacts S2 are held open to prevent the reclosure of the contactor C until the relay S is de-energized by the removal of the fault 12. In modifications (Figs. 2 and 3, not shown) each transformer may be associated with its own individual rectifier and. a resistance may be used in place of the neutral point inductance A. Specifications 605,927 and 623,911 are referred to.
Patent GB-219731-A (GB)
Title: Improvements relating to electric vacuum tube devices and the like
IPC: H01J19/36
Filed: 1923-04-27
Abstract: 219,731. Robinson, E. Y. April 27, 1923. Aspirating-apparatus, ejector.-A water-cooled exhaust pump of the Langmuir type for use with thermionic valves is provided with a protective device operated on partial or complete failure or other undesirable condition of the supply of cooling water so as to open the circuit supplying energy to the valves or connect an auxiliary supply of water. Fig. 1 shows an arrangement in which the operation of such. a protective device depends on the supply of cooling water to thermionic valves. A pressure relay is connected with the outlet pipe 5 of the cooling system and consists of a U-tube 17 containing mercury and provided with two contacts, which, when bridged by the mercury, close the circuit of a winding of a relay 23 so as to energize a winding 25 operating a switch 26, which controls the supply of energy to the valves. When the supply of water fails or is reduced the relay 23, and, consequently, the switches 26, 28 are opened, so that the supply of energy to the valve is interrupted. Alternatively, the tube 17 may connect an auxiliary of water. The tube has two bulbs as shown so as to prevent disturbance of the mercury due to fluctuations in the water supply. In the arrangement shown in Fig. 6 the anodes 2 are insulated from earth by using long glass or indiarubber pipes 91, 92, for the supply of water. If the water supply fails or falls below a predetermined minimum the relay closes the lower contacts to ring a bell 105, close the valve 95, and open the valve 103 so as to bring the auxiliary water supply 104 into operaiion. A pressure head may be provided by means of constrictions 108. The contacts of a pressurerelay for a pump are connected in series with the contacts of the pressure-relay 96. The U-tube may be of metal forming one contact, the other consisting of an adjustable insulated rod dipping into mercury. In another construction a piston operated by pressure of water normally closes the relay contacts but opens them when the pressure falls. In a modified arrangement a thermal relay is used consisting of a thermometer mounted in the cooling jacket in contact with the anode, the contacts being arranged to operate a relay of the type shown in Fig. 1, when the temperature rises due to failure of the water supply; or a pressure or ionization gauge connected with the interior of the valve may operate the relay when the temperature inside the valve rises.
Patent GB-1280393-A (GB)
Title: New furan derivative and process for its preparation
Inventor: BEREGI LASZLO
IPC: C07D405/04
Filed: 1970-03-10
Abstract: 1280393 1 - (3 - Sulphamoyl - 4 - chlorobenzamido) - 3 - (2 - furyl) - pyrrolidine SCIENCE UNION ET CIE SOC FRANCAISE DE RECHERCHE MEDICALE 19 April 1971 [10 March 1970] 11430/70 Heading C2C The novel title compound (I) is made by interacting 3 - sulphamoyl - 4 - chloro - benzoyl chloride and 1-amino-3-(2-furyl)-pyrrolidine. Pharmaceutical preparations suitable in the treatment of oedema or ascites in cardiac, renal or hepatic insufficiency, of hypertension and obesity contain I as active ingredient; administration may be orally, rectally or parenterally.
Patent GB-1306786-A (GB)
Title: Safety operation of fluid-pressure control systems
IPC: F16K17/10
Filed: 1971-05-12
Abstract: 1306786 Fluid-pressure servomotor systems SULZER BROS Ltd 12 May 1971 [21 May 1970 6 Jan 1971] 14465/71 Heading G3P A by-pass valve 5 in a steam generator normally controlled by a fluid-pressure signal 18 applied to a control valve 15 is moved to open position by a spring 10 when opposite ends of a cylinder 2 are inter-connected through a valve 33 controlled by a solenoid-operated pilot valve 40 which receives its supply either from a pump 21 or from the upper end of the cylinder 2, the supply being taken automatically from whichever source is at the higher pressure through one of a pair of non-return valves 50, 52. Failure of the supply from the pump 21 cannot, therefore, prevent the system responding to energization of the pilot valve solenoid by a safety signal. Further, similarly controlled, valves 33<SP>1</SP>, 33<SP>11</SP> are arranged in parallel with the valve 33. An alternative arrangement is described in which the construction of the valves 33 and 40 is modified and non-return valves 32, 32<SP>1</SP> and 32<SP>11</SP> are replaced by a single non-return valve between the valve 33 and the space 2b in the cylinder.
Patent GB-825101-A (GB)
Title: Improvements in or relating to loose leaf folders
IPC: B42F13/02
Filed: 1957-04-09
Abstract: 825,101. Filing papers. COKER, A. W. Feb. 28, 1958 [April 9, 1957], No. 11552/57. Class 146(1) A cover for a looser-leaf folder comprising front and back sheets has a sheetretaining member or tongue integral with or carried by one or both such sheets, the retaining member extending in a direction generally parallel to the spine of the folder and being notched at each end at the part where it joins the sheet or sheets carrying it. As shown, a folder comprises sheets 1 and 2 of paper, strawboard, thin plastic or flexible metal. A retaining member 3 is formed by folding the member 3 along crease lines 4, 5 and 8. The member is undercut at 9 and 10 so as to retain sheets provided with a slot or slit along their fold lines for engagement with member 3, the length of the slot or slit being intermediate the maximum and minimum lengths of the member 3. The sides of the member 3 may be secured together by sticking, stapling, or adhesive. In a modification, especially for sheets which extend a substantial distance on one side only of the slot or slit the member 20 is formed by folding as shown in Fig. 5. In a further modification (Fig. 7, not shown), the member is formed separately, e.g. of thin metal and has lugs 31 for attachment to the cover.
Patent GB-644015-A (GB)
Title: Improvement in fluid sealing device
IPC: F16J15/24
Filed: 1947-04-30
Abstract: 644,015. Stuffing-box substitutes. STEWART, J. H. F. April 30, 1947, No. 11559. Convention date, May 11, 1946. [Class 122(v)] In a fluid pressure seal 48 for cylindrical surfaces comprising a sealing element 20 mounted for bodily movement in an annular housing and adapted by end pressure to be extruded therefrom, the housing includes a body 10 of sheet metal which provides a guide surface 12 which extends first axially and then radially to direct an end 50 of the element 20 against the surface 44 to be sealed. The element 20 is mounted in a chamber formed between the surface 12 and a retainer 22 assembled in the body 10 by means of a bead 56 on the body 10 spun over to form a lip 14, and is extruded by means of springs 26 and fluid pressure admitted through passages 32 in the retainer 22. A protector 34 is fitted in the housing and has a flanged sleeve portion which includes a large diameter section 38 equal to the internal diameter of the housing, a small diameter section 40 and a conical section 42 between the sections 38, 40. The shaft 44 is guided into the section 38 and on reaching the section 42 the protector 34 is forced out of the seal 48 until the latter is positioned on the shaft 44. A torus seal 18 is provided in a double S groove 16 formed in the body 10. A method of manufacturing the seal comprising stamping and spinning is described. Specification 630,791 is referred to. Reference has been directed by the Comptroller to Specification 634,848.
Patent GB-1498621-A (GB)
Title: Heat exchanger
IPC: F24F12/00
Filed: 1975-06-16
Abstract: 1498621 Heat exchangers R W PAGE 16 June 1975 [15 March 1974] 11621/74 Heading F4S An air to air heat exchanger comprises a framework of elements 19 ... 22 which supports an elongated flexible membrane e.g. of thin polythene, in a seies of hairpin loops forming side by side passages with spaced parallel side walls 10, 11 and alternate passages for the two air flows having open mouths 13, 15 at the bottom and top respectively. The open ends 14, 17 of the passages are blocked by vertical frame members 23, 24 and 25, 26 secured to the elements 19, 22 except at positions remote from the mouths 13, 15 respectively so as to form side outlets 31, 32. Respective air flows therefore pass through inlet openings 30, 32 to pass countercurrently through the passages and exhaust through the side outlets 31, 33.
Patent GB-142476-A (GB)
Title: Improvements relating to automatic change speed mechanism
IPC: F16H33/08
Filed: 1920-04-27
Abstract: 142,476. Guiraud, H. J. April 16, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Variable-speed gearing comprises centrifugal masses e‹ upon links e pivoted upon a disk d secured to a driving-shaft b. Rollers or skids e<1> project from the masses e<0> into a sinuous cam groove c<1> in the face of a disk c on a driven shaft a. The masses resist being reciprocated by the cam-groove, so that the disk c is driven at a speed varying automatically with the load.
Patent GB-817849-A (GB)
Title: Improvements in dish washing machines
IPC: A47L15/24
Filed: 1957-04-10
Abstract: 817,849. Dish washing machines. ENGWALL & CO. KOMMANDITBOLAG V.T. April 10, 1957 [May 19, 1956], No. 11751/57. Class 138(1). [Also in Group XXX] A dish washing machine having means for conveying dishes or other crockery preferably disposed in baskets, along a roller conveyer whereby the conveyer is divided into two lines or paths 2 and 3 disposed in parallel or at an angle to each other, and provided with a transferring device in the form of a turntable 4, or a conveyer 16 travelling in a direction transverse to that of the roller conveyers, at a transition point from the first or running in path to the running out path thereof, characterized in that a dish washing or spray chamber 1 is arranged in the running in path of the conveyer and a discharging station 13 for washed crockery as well as a loading station for baskets with crockery to be washed are arranged in the running out path of the roller conveyer. The baskets 5 are loaded at 6 or 7 depending on whether they need to pass through pre-rinsing tank 8 and are then pushed across sloping plate 9 onto roller conveyer 2 down which they travel under the influence of gravity. After passing through spray chamber 1 they reach turntable 4 which is provided with guide bars 11 and 12 and may be power driven. Turntables 15 and 10, Fig. 2, may replace plate 9 and turntable 4, in which case the axes of these turntables may be inclined so as to raise the baskets from one conveyer to the other. The turntables may be replaced by transverse roller conveyers 16 which, when it is necessary to raise the baskets from one roller path to the next, are mounted on a platform which is automatically raised by the arrival of a basket on to conveyer 16 and lowered again after the basket has been transferred.
Patent GB-527676-A (GB)
Title: Improvements in or relating to electrical supply fittings
IPC: H01R13/631
Filed: 1939-04-19
Abstract: 527,676. Two-part couplings. HAGGAR, R. W. April 19, 1939, No. 11759. Convention date, May 23, 1938. [Class 38 (i)] In order to facilitate the correct insertion of a plug member 7 in a wall socket 2 coacting parts are formed on the plug and socket to form when in engagement a hinge about which the plug member turns. A cross-rod 6 of circular section is provided on the plug member 7 to fit into a groove 3 on the socket member into which it is guided by convergent lateral guide ribs 4. In the form shown the ribs 4 are formed on the wall plate 5 and the groove 3 in the member 2 but the groove 3 may be formed by outward bending of the edge of the plate 5, or by moulding a groove in a thickened part of the plate. Alternatively the ends of the rod 6 may enter slots in the guide ribs 4 that replace the groove 3. The contact blades 8 are preferably curved but an ordinary plug member may be adapted to coact with the improved socket by attaching thereto a cross-rod 6 mounted on a band clip to encircle the plug member.
Patent GB-885041-A (GB)
Title: Improvements in or relating to zone melting
Inventor: SPASH DAVID ISAAC
IPC: C30B13/30
Filed: 1959-04-07
Abstract: In a method of zone refining a rod of material, e.g. silicon, the molten zone is produced by the action of two electromagnetic fields produced by alternating currents of different frequency, the lower being such that the resulting induced currents flow at or close to the axis of the rod, so that a molten zone of flatter profile is obtained.  The lower frequency current has a frequency between 1000 c/s. and 20 kc./s., and the higher frequency current has a frequency between 150 kc./s. and 100 mc/s.  The two fields are produced by a work coil comprising a single turn concentrator around which are two primary windings each connected to generators of appropriate frequency.  Other materials which may be refined are copper, tungsten, rhodium, platinum, niobium and galluim arsenide.
Patent GB-842116-A (GB)
Title: Improvements in arrangements for providing two-way communication at intermediate points on a telephone circuit
Inventor: BROWN DERRICK CHARLES
IPC: H04M3/56
Filed: 1957-04-10
Abstract: 842,116. Two-way transmission. TELEPHONE MANUFACTURING CO. Ltd. March 17, 1958 [April 10, 1957], No. 11763/57. Class 40 (4). In an arrangement for making a two-way speaking connection to a through four-wire telephone channel, the channel is split and the ends connected to two hybrid coils A and B, of which the respective line sides are connected together while the balance sides extend to a further hybrid coil C to which the local telephone S is connected (through a voice-frequency ringer D, as shown). An audio-frequency supervisory circuit at a repeater station in a carrier multiplex system, Fig. 2, is connected to one channel which is filtered out and applied to the two hybrids A and B, the remaining channels being maintained on a four-wire basis. Switching facilities, for terminating the hybrids A and B when the through path is not required and for establishing communication either between S and A or between S and B, as desired, may be provided, Fig. 3 (not shown). The arrangement is applicable also to phantom circuits.
Patent GB-1254373-A (GB)
Title: Means for conveying material in chip form
Inventor: ASSAUER HELMUTH
IPC: B65G25/00
Filed: 1969-03-05
Abstract: 1,254,373. Reciprocating conveyers. KOHLER & BOVENKAMP G.m.b.H. 5 March, 1969, No. 11829/69. Heading B8A. In a conveyer for material in chip form a reciprocating assembly comprises main longitudinal members 6, 6<SP>1</SP> connected by intermediate shorter members 9 located in the region where a trough portion 2 connects a horizontal trough portion 1 with an inclined portion 3. The reciprocating members 9 form a chain-like assembly carrying pivoted pairs of 20 spurs and single spurs 15. Upstream of the portion 2, a reduction in the cross-section of the trough improves conveying in the inclined trough portion 3. Pivoted spurs 26 on the vertical trough walls 3<SP>1</SP>, spurs 27 on inclined walls 25 and spurs 28 on a cover 24 allow material to be conveyed forwardly but prevent rearward movement thereof. A rail 5 fixed to the bottom of the trough guides the reciprocating assembly.
Patent GB-488045-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines
IPC: F02F3/06
Filed: 1937-04-26
Abstract: 488,045. Pistons. MOTOR RESEARCH CORPORATION. April 26, 1937, No. 11880. Convention date, Jan. 22. [Class 122 (i)] A piston comprises a pair of skirt sections 17 resiliently connected to the head and compressed one toward the other by a relatively inextensible band or bands 19, 19b, pre-stressed at temperatures less than operating temperatures. The skirt sections are connected by resilient webs 18 to tugs depending from the head and carrying the bosses 13. The bands are cast in the skirt sections and coated, except at the anchorage points 19a with a lubricant to prevent adhesion and permit relative sliding movement of the skirt and bands. After casting, a tool is inserted through holes in the skirt to deform the band at 19d thereby stressing it and soft metal rivets 25 are subsequently inserted to maintain the band in stressed condition.
Patent GB-499560-A (GB)
Title: Improved material for mens' and boys' suits and method of producing the same
IPC: D03D15/00
Filed: 1938-04-21
Abstract: 499,560. Woven fabrics. WOLFF, T. April 21, 193S, No. 11924. [Class 142 (iv)] A material for men's and boys' suits comprises two lengths identical in design, but that for the trousers is stronger than that used for the jacket &c. and has threads of greater ply in one direction than the other, e.g. two and three ply threads 1a, 2a, Fig. 2. The other length has threads of equal ply. The threads of greater ply may have finer constituent yarns than the threads of lesser ply so as not to be appreciably thicker. The two lengths are subjected to a common finishing treatment, which may comprise treatment in a bath &c. 3 for removal of size or glue, treatment in dyeing and rinsing vats 4, 5, passage between rollers 6 and treatment in a drier 7 a steaming or conditioning apparatus 8 moistening at 9, treatment in a calender 10 and winding on a drum 11. Previously dyed yarns may be used. The fabric may be woven in one or two lengths. In the former case, after weaving say 210 yards with threads of equal ply, the weft threads are replaced by others of greater ply, or the warp threads are replaced by others of greater ply. In the latter case, the warp threads may be joined up in the required lengths of different plies previous to beaming. The fabric may be entirely woollen or may include cotton &c. Examples wherein worsted threads are used are given. Three, four, and five ply threads may be used. Untwisted warp and weft threads may be used.
Patent GB-309923-A (GB)
Title: Process for softening water
IPC: C02F5/10
Filed: 1929-04-17
Abstract: 309,923. I. G. Farbenindustrie Akt.- Ges. April 17, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Unsaturated fatty acids or esters thereof, con. taining at least one sulphonic group directly linked to a carbon atom, which are used for preventing the precipitation of insoluble compounds from hard water in washing, dyeing and other processes for the treatment of textiles, are obtained by treating unsaturated fatty acids or their esters with sulphur trioxide or oleum, advantageously in the presence of a diluent such as trichlorethylene and the lower fatty acids or their anhydrides (c.f. Specification 296,999). According to examples, products are obtained (1) by treating castor oil with fuming sulphuric acid in the presence of acetic acid and acetic anhydride : (2) by treating castor oil or oleic acid with fuming sulphuric acid in the presence of trichlorethylene. In a further example, the product of the sulphonation, with oleum, of diricinoleic acid in the presence of carbon tetrachloride is added to a saturated solution of gypsum. Specification 286,039, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], also is referred to.
Patent GB-528056-A (GB)
Title: Improvements relating to tobacco ash receptacles
IPC: A24F19/00
Filed: 1939-04-21
Abstract: 528,056. Smokers' ash receptacles. LUCAS, Ltd., J. and SIMCO, H, V. April 21, 1939, No. 12001. [Class 130] An ash receptacle suitable for public vehicles or buildings comprises a back plate a secured by screws &c. to the back of a seat or other support, and a hollow body d, and a cap f hinged at c, e to the back plate, the cap normally fitting over the upper end of the body. A snap button or other catch g, h, prevents the body from being accidentally swung away from the back plate when the cap f is released from the body. As shown, the cap has an opening formed by a depending tube j, and this and a baffle k serve to minimize the escape of smoke.
Patent GB-1277985-A (GB)
Title: Digital travel measurement
IPC: G11C19/00
Filed: 1970-03-12
Abstract: 1277985 Counters; Correcting for slip SIEMENS AG 12 March 1970 [13 March 1969] 12021/70 Headings G4A G4D and G4H [Also in Division B8] In a system in which the position of a moving object, e.g. a lift cage, is indicated by a counter which receives equi-weighted pulses from a generator coupled to the object the counter is reset to a preset count when the object has passed a sensor to compensate for slip in the coupling. The resetting circuit includes means compensating for the known response time of the sensor. In the embodiment described, drive 4 to lift cage 3 causes generator 5 to emit up/down signals R, V and pulses I to reversible counter 7 which shows the cage position. Magnetically actuated switch 13 is actuated as the cage passes it, its contacts closing at the end of its response time t. This closure causes bi-stable 18 to be set to 1 and monostable 19 to be triggered. When bi-stable 18 is at 1 the pulses from generator 4 are also counted in counter 24. Monostable 19 has an unstable duration n.t. and when it reverts to its stable state the count in counter 24 is multiplied by (1+n)/n, i.e. the count is doubled if the unstable duration of monostable 19 is equal to the response time of switch 13. The count is now equivalent to the distance of the cage above or below switch 13. The counter 24 continues to count until a preset count is reached at which instant the cage is at a known position S1 or S2. This count is detected by gate 26 and causes bi-stable 18 to be reset to zero and the counter 7 to be reset to a count which is equivalent to the distance A1ŒB. Counter 24, as shown in Fig. 2, is a 4-stage binary counter incremented by pulses at 38 and reset by a pulse at 30 or 33. When a pulse is applied at 39 the existing count is doubled by shifting the contents of each stage one stage to the right.