baber/WOPTO huggingface dataset:
Patent GB-1411955-A (GB)
Title: Furnace circuit for variable pressure once-through generator
IPC: F22B37/32
Filed: 1972-12-20
Abstract: 1411955 Once-through vapour generator FOSTER WHEELER CORP 20 Dec 1972 [27 Dec 1971] 58893/72 Heading F4A In a once-through vapour generator in which tube panels 14 define a furnace enclosure and receive water from a feed pump 34, separators 50 are provided to deliver water output from the enclosure at low loads into a downcomer 42 for natural circulation, a check valve 90 in the inlet portion 70 of the downcomer being operable to close the natural circulation loop for once-through operation at higher loads, and the natural circulation being assisted by a jet pump 72 provided in the downcomer and comprising a Venturi 76 and a nuzzle 74 through which water from the feed pump 34 is introduced into the Venturi. During start up of the generator the valve 90 is open and flow through the furnace enclosure circuit and feed flow through the jet pump are respectively about 45% and at least 10% of the full load flow. As the load increases the feed pump flow is increased to maintain this furnace circulation until about 45% load is reached at which point there is little or no driving force for natural circulation and the vlave 90 then opens automatically for the generator to continue to full load on once-through operation; the generator pressure in the upper load regions being supercritical. A portion of the water from the feed pump is passed by a line 84 to a point downstream of the jet pump and a valve 86 maintains a pressure ratio of about 1 : 33 between the pressure in the nozzle 74 and the pressure in Venturi inlet 78 to ensure proper operation of the pump. To prevent flooding of the separators 50 a valve 88 operates in response to the separators water level to direct water down a by-pass line 44. The furnace enclosure is defined by panels of parallel upright tubes and cross-over means are provided above the burner zone to transfer flow in the panels in an area of high heat absorption to those in an area of low heat absorption and vice versa.  An economiser 38 is provided in the upper region of the enclosure and division tube walls define a convection pass containing primary 18 and final 20 superheaters. In the embodiment shown the generator is gas or oil fired and steam is passed to turbine stages 22, 26, condensed then returned to the feed pump via low and high pressure heaters and a deaerator, being discharged through the economiser into the downcomer. In the generator a slightly different arrangement is employed (Figs. 9, 10, 11, not shown). Feed pump flow is firstly to a circuit comprising a portion of the furnace enclosure, e.g. the centre portions of the lower side walls, is then mixed with the recirculated flow from the whole enclosure, if any, and the combined flow is delivered to the remaining portions of the furnace enclosure. Superheat temperature is regulated by water spray between the superheat stages.
Patent GB-1375378-A (GB)
IPC: A61K9/02
Filed: 1971-12-20
Abstract: 1375378 Triazine derivatives BOEHRINGER INGELHEIM GmbH 20 Dec 1971 [21 Dec 1970] 59072/71 Heading C2C Novel triazene derivatives of the formula wherein R 1  is cyclohexyl, phenyl-C 1-2  alkyl or pyridyl-C 1-2  alkyl; R 2  is H, CH 3  or CH 3 CH 2 ; and R 3  is C 1-4  alkyl or C 3-6  cycloalkyl and acid addition and quaternary ammonium salts thereof, are prepared by reacting diazonium salts of the formula where X<SP>n(-)</SP> is an anion of an acid capable of stabilizing the diazonium compound, and n is the charge on the anion with amines of the formula CH 3 (R 1 )NH, or by diazotizing amines for the formula and reacting the diazonium salts then formed with amines of the formula CH 3 (R 1 )NH. 4-Amino-N-isopropylbenzamide is obtained by reducing N-isopropyl-4-nitrobenzamide resulting from the reaction between 4-nitrobenzoyl chloride with isopropylamine. Pharmaceutical compositions, suitable for oral, parenteral or rectal administration, contain the above novel triazenes or acid addition or quaternary ammonium salts thereof together with pharmaceutical cariers or excipients. The compounds possess an immunosuppressive action.
Patent GB-1404670-A (GB)
Title: Shell and drawer unit
IPC: A47B87/02
Filed: 1972-12-20
Abstract: 1404670 Drawer cabinets ASHTON CONTAINERS Ltd 4 Dec 1973 [20 Dec 1972] 59699/72 Heading A4B [Also in Division B8]  A shell and drawer unit comprises a rectangular open fronted shell formed from a first folded blank Fig.1, of stiff material, e.g. corrugated fibreboard, and a drawer formed from a second folded blank Fig.2 of stiff material, the shell being formed in its top 13 and bottom 10 walls and adjacent its rear wall defined by flaps 16-18 with slots, such as 19 in the bottom wall, one of the slots being formed when a flap 18 is bent downwardly whereby a locking tab 20 extends upwardly above the top wall 13 to expose the slot, the tabs 20 and slots 19 facilitating stacking of similar shells by inter-engaging their tabs and slots. The drawer blank includes extension flaps 35 which locate through slots 33, 34 in the sides 26 and bottom 25 of the drawer to project below the drawer bottom to act as stops which are engageable with a flap 14 reversely bent into the interior of the shell to prevent complete removal of the drawer from the shell.
Patent GB-1374080-A (GB)
Title: Transmitting and receiving successive groups of multilevel coded signals
IPC: H04L25/48
Filed: 1971-12-22
Abstract: 1374080 Digital transmission; multilevel signals FUJITSU Ltd 22 Dec 1971 [23 Dec 1970 26 Dec 1970] 59797/71 Heading H4P A system for transmitting multilevel signals has means for detecting when two or more identical groups occur consecutively and replacing each one after the first by a pattern which is recognized by the receiver and used for synchronization. Serial binary signals are converted to parallel at 30 which includes a buffer store and are then converted to multilevel in a regular conversion circuit 40 into quaternary code which are recognized by pattern discriminating circuit 50 which includes a weighting circuit feeding into a summing amplifier and comparison circuit which provides an output at J when the amplifier output is negative. An output when a pattern is repeated is given at K and a sync. pattern is generated at 70 and passed to parallel-serial converter 80. An irregular converting circuit 60 accepts patterns where the algebraic sum is negative and each of these 35 patterns is converted into one of another 35 patterns of zero sum. Output from 80 is passed through a multi value pulse generating circuit 100 comprising a weighting - circuit and amplifier similar to that included in circuit 50 the output from which is passed to line TL which is monitored by integrator 110 giving an output signal I when the integrated input is positive.  In an embodiment described the sync. pattern may be +2-2+2-2 which can be detected. At the receiver signals are regenerated at 120 and supplied to a serial-parallel conversion circuit 130 where each level of the code is detected and stored then supplied to a block sync. circuit 140 where the sync. pattern is detected and a signal R produced. Circuit 130 supplies a mode identification circuit 170 which includes a weighting circuit and a summing amplifier whose output is monitored so that at levels greater than zero a symbol L<SP>1</SP> is applied to circuit 140, output from which is applied to irregular/regular converting circuits 180, 190 where operations reverse to the transmitter are performed. In another arrangement determined pairs of consecutive signals are transmitted only when they form the first and last signals respectively of a pair of consecutive groups, a receiver detecting receipt of the determined pair and controlling group synchronization.
Patent GB-1363270-A (GB)
Title: Apparatus for supporting movable screens such as curtains
IPC: A47H5/032
Filed: 1971-12-23
Abstract: 1363270 Suspending curtains ANTIFERENCE Ltd 21 Dec 1972 [23 Dec 1971] 60132/71 Heading A4B  A curtain drawing assembly includes a drawcord 14 disposed in a longitudinal groove 2b in a rail 2 supporting a master slider or driver 12 and is provided with means mounted on the driver 12 for coupling the driver 12 to the drawcord 14, the coupling means including a cord embracing portion 22 disposed in the groove 2b and an operating portion 24 disposed outside the groove 2b for movement between a first position in which the cord embracing portion 22 clamps the driver 12 to the cord and a second, release position in which the driver 12 is slidable along the cord 14. The rail is fitted at its ends with similar fittings 6 for guiding the runs of the cord 14, each fitting 6 having three pulley wheels 30, 32, 36 two of which 30, 36 are used at one end to guide the runs to a vertical depending position and another two 30, 32 being used at the opposite end to reverse the direction of the runs. In one embodiment, Figs. 4, 5, the operating member 24 is rotatable to twist the cord embracing member 22 through 90 degrees to the position shown in Fig. 5 in which the cord 14 is kinked and tightly gripped in the cord embracing loop 22 which may be open or closed. Other forms of coupling means used a closed loop for embracing and kinking the cord are described Figs. 9-12 and 14 (not shown). In another embodiment, Fig. 17, the cord 14 is gripped within an embracing portion 62 when integral links 64 of an operating portion are brought together and secured by snap engagement of their edges 72, 74 or by a screw (66), Fig. 15 (not shown). Alternatively Fig. 21 (not shown) the cord is gripped between two plates (108, 110) with arcuate, cord -embracing grooves 102 drawn together by a screw (66). In a further embodiment, Fig. 22, the cord is gripped by a tongue 112a-c bent around the cord and anchored in a slot 112d. In a further embodiment, Fig. 26, the cord is gripped by a resilient wire loop having crossed over extensions 122, 124 which are movable towards each other to release the cord. In a further embodiment, Fig. 27, a U-shaped member 140 has inward projections which snap selectively into recesses 152, 154 in the respective cord clamping and release positions.
Patent GB-1285617-A (GB)
Title: Improvements in or relating to turret type automatic machine tools
IPC: B23Q5/34
Filed: 1969-12-17
Abstract: 1285617 Turret lathes TSUGAMI SEISAKUSHO KK 17 Dec 1969 [19 Dec 1968] 61568/69 Headings B3B and B3T An automatic turret type machine tool has a turret slide operating mechanism which comprises a feed cam A which actuates a cam follower 5 carrying a gear sector 53 which engages a rack 4 on the turret slide 1 to effect its displacement in accordance with the rotation of the cam, a rod 6 slidably located in a bore b in the machine bed B and engaging in an aperture 52 in an arm 51 of the follower 5 and which is biased by a spring 7 to urge the follower 5 into engagement with the cam A. A second spring 13 located in a horizontal bore 16 in the bed B and which engages the turret slide is provided to eliminate back-lash between the rack and gear sector, the second spring 13 being of a lower rate than that of the first spring 7. Means is also provided to define a fixed stop position for the index shaft 2 and which includes a plunger member 11 under the bias of a third spring 10 and which engages a cam 21 on the indexing shaft 2. The indexing of the turret is effected in sequence with the reciprocation of the turret slide by the connecting link 3 between the slide and the indexing shaft 2 which indexes the turret by way of a Geneva mechanism.
Patent GB-1338915-A (GB)
Title: Method and apparatus for fhe formation of alpha-numerical characters on light sensitive surfaces
IPC: B41J2/46
Filed: 1970-12-30
Abstract: 1338915 Photographic type composing QUANTOR CORP 30 Dec 1970 [26 Jan 1970] 61873/70 Heading B6W Characters are formed on a light sensitive surface 8 by scanning it with a beam of light which is switched on and off at appropriate times. A light source, e.g. photodiodes 17, 18, 19, Fig. 2 may be provided for each field in which a character can be formed, each source scanning five possible exposure points extending in the Y direction, Fig. 1, the light sensitive surfaces 8 being indexed in the X direction ready for the sources to scan the next five points and so on until after seven scans, each source has formed a character in its own field. Scanning in the Y direction can be effected by a mirror 20 comprising five angled sections, each source 17, 18, 19 being reflected from a particular section, e.g. 20c to a particular point on its own field e.g. position 3, the section being selected by a rotatable apertured plate 22. The light sensitive surface may be moved in the X direction intermittently or continuously in which latter case the mirror sections are angled to offset character slanting. The device may be used for computer print-out on to microfilm, flashing of the light sources and positioning of the apertured plate, the position of which may be sensed by a photocell (82), Fig. 3 (not shown), being controlled by a memory circuit and timing device. In an alternative embodiment, a movable galvonometer mirror (88), Fig. 4 (not shown), may be used for scanning. One hundred and thirty two fields may be aligned in the Y direction to form a line of characters, each character in the line being formed simultaneously by its own light source.
Patent GB-1301114-A (GB)
Title: Air analyser
Inventor: IRIONDO JOAQUIN MARCOERQUEAGA
IPC: F23Q9/00
Filed: 1969-12-29
Abstract: 1301114 Gas burner J M IRIONDO 29 Dec 1969 63090/69 Heading F4T A safety device for detecting changes in atmospheric oxygen and/or carbon dioxide content comprises a burner body 4 having a tubular flame shaper 5 which together define an annular outlet 7, and a thermocouple 6 located concentrically with the outlet 7 and being adapted to control an electromagnetic fuel supply valve to the burner in dependence on the nature of the flame produced by the burner. Under normal operating conditions, as shown in Fig. 1, the thermocouple is situated in the outer, hot zone 9 of the annular flame 8-if the oxygen content of the atmosphere should decrease or the CO 2  content increase, the flame shape changes to that shown in Fig. 2 and the thermocouple 6 is now in the inner, cold, zone 11 of the flame. The change in temperature sensed by the thermocouple results in a shutting down of the fuel supply to the burner by operation of the electromagnetic valve (not shown)
Patent GB-650540-A (GB)
Abstract: 650,540. Ticket printing and issuing machines. TOTALISATORS, Ltd. (Automatic Totalisators, Ltd.). Oct. 16, 1947, No. 27719. [Class 106 (iii)] A ticket delivery duct assembly for a ticket printing and issuing machine comprises a wall plate having a channel-sectioned groove therein, a second wall-plate having a land thereon able to fit neatly between the sides of the groove with the land face parallel to and spaced from the floor of the groove, means for holding the wall-plates together with the land in the groove, thereby to constitute a ticket strip feed shoot, means for moving a ticket strip along the feed shoot, a printing unit having its receiving end aligned with the departure end of the feed shoot, a cutting unit aligned with the departure end of the printing unit, and a frame which is disposed on the departure side of the cutting unit and having a ticket outlet. The present invention is applied to a ticket issuing machine of the Julius type. The feed shoot is formed by two plates 5, 6, Figs. 1 and 2, fixed together by screws and so formed as to leave a ticket strip accommodating space 11 therebetween. A spring-pressed ball 12 enters the space near the foot of the shoot to support the ticket strip. The plates 5, 6 are slotted at 16 to receive the peripheral surface of backing rolls 17 and feeding rolls 19 respectively. The backing rolls 17 are mounted on a drum 18 receiving intermittent or continuous rotation from a main cam-shaft (not shown) which also effects a similar control of the feeding rolls 19. When, as in the present case, the feeding rolls 19 are continuously rotated, they are provided with cam portions 20 which effect feeding of the strip by the length of a ticket each machine cycle. As the ticket strip passes the plates 5, 6 it enters the space between the type wheel 24, type block 25, &c. and the platen 23, which is reciprocated each machine cycle by the main cam-shaft to print a ticket. The ticket is cut by a spring- loaded guillotine blade 26 mounted upon a stationary blade 27 carried by brackets 28 on the machine chassis 15. The ticket then passes through an outlet box 37 to the outside of the machine.
Patent GB-679512-A (GB)
Abstract: 679,512. Cooling hydraulic torque converters. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. May 8, 1950 [May 10, 1949], No. 11362/50. Class 69 (ii) [Also in Group XIII] A hydraulic torque converter of the F÷ttinger or Lysholm type is driven by a combustion engine, e.g. an i.-c. engine 10, having a cooling jacket, a pump 20 for circulating cooling liquid such as water and a cooler 16 for the liquid. Moreover, a jacketed housing of the converter provides a space for cooling liquid around the working chamber of the converter and connections 38, 42 from the engine cooling system to and from the converter jacket 54. Some of the water from the pump 20 passes through the conduit 38 to the cooling jacket 54 which is on a casing 14 around the working chamber of the torque converter. Since the inlet 26 on the jacket is separated by a wall from the outlet 30, the water passes in a zig-zag path around baffles 56, Fig. 3, to encircle the converter casing 14, then returns, by way of the conduit 42, to the cooling radiator 16 together with water from the jacket of the engine 10. To prevent overcooling of the converter, a thermally controlled valve 48 responsive to the converter temperature is included at the outlet 30. In a modification, Fig. 1, (not shown), the jackets are connected for series flow therethrough. Circumferential grooves 50 in the converter casing 14 contain rubber packing rings and the sheet metal jacket 54 is secured by crimping. In a modification of the converter jacket, Figs. 5, 6, (not shown), the baffles extend circumferentially instead of axially as shown.
Patent GB-772898-A (GB)
Abstract: 772,898. Calculating - apparatus. NATIONAL CASH REGISTER CO., Ltd. Jan. 2, 1956 [Jan. 17, 1955], No. 1350/55. Class 106 (1). An accounting machine having a totalizer and printing mechanism comprises a device for preventing printing in a predetermined denomination and a counter for counting the number of transfers from that denomination to the next higher one. Thus, if a fractions denomination is suppressed during the printing of a customer's account, a total corresponding to the total of the items as printed may be obtained by deducting from the total as registered in the totalizer, the amount represented by the number of transfers registered by the counter. The invention is applied to a machine similar to that described in Specification 680,992 but modified for handling Sterling amounts including eighths of pennies. During the listing of individual entries, a carriage stop prevents printing of the eighths of pennies but the full amounts are entered into the No. 1 (Balance) totalizer. The total contained in the latter is then transferred to the No. 4 totalizer and the transfers from the eighths-of-pennies denomination of this totalizer are counted on the Nos. 2 and 3 counters. The No. 2 counter, but not the No. 3 counter, may be zeroized by rotation of an associated fingerwheel 91, Fig. 3, after depression of a key 99 which cams a locking slide to an ineffective position. Specification 631,379 also is referred to. Counting transfers from the lowest denomination. At transfer, a lever 44, Fig. 8, is released in known manner and near the end of the cycle is permitted further counter-clockwise movement under the control of a restoring bar, Fig. 2 (not shown), which co-operates with an extension 117 of the lever 44. This movement allows rearward movement of a bar 122 carrying a half-round stud 137 which is thus moved from under a similar but inverted stud 138 on an actuator 70 pivoted on an arm 68 fast on the engaging shaft 65 for the No. 4 totalizer, which at this time is in the rest position shown. The actuator 70 thus drops to engage a notch 143 in its front end behind a stud 144 coupling actuating slides 72 for the Nos. 2 and 3 counters. On forward movement, which occurs in this case when the shaft 65 is next rocked to engage the No. 4 totalizer, the slides 72 actuate the corresponding counters in known manner through pitmans 79, Fig. 3. A cam 107 lowers the ends of the pitmans 79 into the paths of shoulders 100 on the slides 72 only at the time that the totalizers are engaged for addition. The half-round studs 137, 138 have chamfered edges to facilitate their re-engagement when the arm 68 is restored to the position shown on disengagement of the totalizer. The counters are of the type having deep-notch transfer mechanism.
Patent GB-2004969-A (GB)
Title: Fastening arrangement for furniture or the like
IPC: F16B12/32
Filed: 1978-09-28
Abstract: A fastening arrangement for furniture such as tables and beds in which certain elements 2, 3 are to be connected to the sides of tubular constructions 1. Each element is provided with a pin having a shaft portion 7, 8 and a bead in the outer end thereof 9, 10. The sides of the tubular constructions are provided with openings 5, 6 for receiving the pins. The fastening arrangement further comprises a clamping means insertable between said bead and the inner surface of the tubular construction while the pin is received in the opening. The clamping means comprises a bifurcate spring means 11, 14 with a slot portion, the shaft portion of the pin being insertable into said slot portion of said spring means. <IMAGE>
Patent GB-2005269-A (GB)
Title: Preparation of 3-phenoxybenzyl 3(2,2-dihalovinyl)-2,2- dimethylcyclopropanecarboxylate
IPC: C07B61/00
Filed: 1978-09-29
Abstract: The insecticide, 3-phenoxybenzyl 3-(2,2-dihalovinyl)-2,2- dimethylcyclopropanecarboxylate, is produced in high yield by the alcoholysis of a lower alkyl 3-(2,2- dihalovinyl)-2,2- dimethylcyclopropanecarboxylate with 3-phenoxybenzyl alcohol in the presence of a catalytic quantity of lower alkyl titanium alkoxide.
Patent GB-2032670-A (GB)
Title: Magnetic display device
IPC: G09F7/04
Filed: 1978-10-26
Abstract: The device comprises two backboard members 1 hinged together to form a portable folder, the backboard members being of laminated construction including an outer covering layer 3, an inner layer 6 of plastics sheet material providing a writing surface, and between said outer and inner layers a sheet 5 of ferromagnetic material, optionally together with a layer of stiffening material 4; and magnetic shapes 7, 8, 9 for magnetic adhesion to said writing surface, each said magnetic shape being covered with plastics sheet material to provide further writing surface. <IMAGE>
Patent GB-2011195-A (GB)
Title: Controlling the supply of a.c. to a load
IPC: G05D23/24
Filed: 1979-01-11
Abstract: A circuit for controlling the supply of a.c. to a load RL comprises a triac TR1, the conduction angle of which is controlled by pulses from a pulse generator 4. The circuit includes a low voltage power supply 1 and a timer 2 which is adjustable to set the overall time period between 0-4 minutes during which the load is energised. A delay circuit 3 produces pulses at each zero crossing of the supply, the width of the pulses being determined by the resistance of a P.T.C. thermistor TH1 associated with the load. The trailing edges of the pulses trigger the pulse generator which in turn supplies trigger pulses to the triac TR1 so that the triac is switched on early in each half cycle when the load is cold and late in each half cycle when the load is hot. The load may be a heating element which melts adhesive in a book binding machine or the circuit may be used to dim a lamp. <IMAGE>