baber/WOPTO huggingface dataset:
Patent GB-681414-A (GB)
Title: Improvements relating to hydrodynamic clutches
IPC: F16D47/06
Filed: 1950-10-30
Abstract: 681,414. Clutch combinations. DAIMLER. BENZ AKT.-GES. Oct. 30, 1950 [Oct, 29, 1949], No. 26397/50. Class 80 (ii). [Also in Group XXIX] In the core-space of a hydrodynamic coupling or torque-converter, which drives a motorvehicle through an additional change-speed gear, is arranged an auxiliary electromagnetic clutch for breaking and/or mechanically bridging the drive. As shown there are two electromagnetic friction clutches one, K2, of which clutches the driven turbine 4 to the output shaft 6 to provide a disconnectible fluid-drive, whilst the other, K1, connects the driving impeller 2 directly to the output shaft 6 for wholly mechanical drive. Energisation is through a live contact 21 on an arm 18 pivoted on the turbine 4, which initially feeds the fluid-drive clutch-contact 23 but, at a predetermined output speed, is moved in by a centrifugal mass 19 on the arm, to break contact 23 and feed the mechanical-drive clutch-contact 24. A bladespring 26 causes the return movement of the arm 18 to occur at a lower predetermined speed. Engine or vehicle speed may alternatively effect control and alternative or additional manual control may be provided. The main supply is through contacts R, I, II, III, completed only in gear positions by an arm 31 connected to the change-speed selector-lever, to provide complete disengagement automatically during the shiftinterval, and re-engagement may be subject to a time-lag device. During a shift, the enginethrottle may be operated automatically dependent on the difference in speed between the input and output shafts of the clutch unit for synchronising the latter. The core-space of the fluid-coupling carries iron members 7, 8 cooperating with the two limbs 11, 12 of a U- shaped armature attached to the output shaft 6 by axially and circumferentially resilient pretensioned tangent spokes 16, which may have baffles to increase idle slip. The spokes may be replaced by perforated discs which may have blades at a suitable angle to synchronise the clutches. Between the armatures 11, 12 is an iron mass 14 completing the flux-path and splined in the turbine 4 to ensure rotation of the turbine with the impeller during mechanical drive. For a towed engine-start without battery current, a claw-clutch, not shown, may be manually engaged to connect the turbine 4 to the output shaft 6.
Patent GB-476708-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/32
Filed: 1936-09-29
Abstract: 476,708. Vacuum cleaners. HOOVER HOLDING CO., Ltd. Sept. 29, 1936, No. 26419. Convention date, Nov. 20, 1935. [Class 8 (i)] A vacuum cleaner for floors is provided with auxiliary suction inlet and pressure outlet both controlled by valves so that the machine can be' converted for use with dusting tools. The casing is provided with a tubular converter member 14 pivoted at 15 and when rotated into its operative position its part 16, Fig. 4, closes the communication between the fan chamber and the main suction nozzle and at the same time pushes back a spring-controlled flap valve 19 which normally closes the auxiliary suction opening. The rotary movement of the converter member also actuates mechanism including the pivoted lever 22 linked to the slotted lever 24 which acting through the crank 10A raises the agitator out of contact with the ground. For suction purposes, a suitable tool is attached to the end of the converter member 14. For blowing purposes, the tool is connected to the secondary pressure outlet 27 normally blocked by the trigger 28 when the converter member is in its inoperative position. The insertion of the tool operates cam-gear 32 which raises a valve 36 to close the passage between the fan chamber and the main pressure outlet.
Patent GB-336732-A (GB)
Title: Laminated glass
IPC: C03C27/10
Filed: 1929-08-30
Abstract: 336,732. Dehn, F. B., (Libbey-Owens Glass Co.). Aug. 30, 1929. Right to Patent relinquished. Compound transparent sheets. - Laminated glass is made by spraying a sheet of non-brittle plastic material with a bonding medium, which may consist of a mixture of dibutyl. phthalate and a polyglycol derivative, the sheet being then placed between coated glass plates and united thereto by heat and pressure. A glass sheet 10 may be sprayed with a layer 12 consisting of a cellulose derivative, a natural or synthetic resin or other material dissolved preferably in a low boiling point solvent mixed with a suitable percent. age of high boiling point solvent or plasticizing agent. A number of coated sheets are dried in a cabinet 13. The plastic sheet and the coated glass sheet are then further sprayed with a layer 16 of a mixture in equal proportions of an ester of phthalic acid such as dibutyl phthalate and a polyglycol derivative such as monoethyl ether of diethylene glycol. Alternatively, this layer may consist of 40 per cent monoethyl ether of diethylene glycol, 30 per cent monobutyl ether of diethylene glycol, and 30 per cent dibutyl phthalate. The plastic sheet may consist of cellulose derivative or synthetic resin or a combination of the two. The glass and plastic sheets are then assembled and subjected to a pressure of about 200 lbs. per square inch at a temperature of 240‹ F. which is maintained for eight minutes. The mixture 16 is sprayed in such a way that it forms slight pits in the plastic sheet and in the layer 12. In some cases, the layer 12 may be dispensed with. A bullet-proof glass may be made by assembling layers as shown in Fig. 8.
Patent GB-636389-A (GB)
Title: Improvements in and relating to presses for the manufacture of hollow articles from rubber or other thermoplastic material
IPC: B29D35/00
Filed: 1946-09-03
Abstract: 636,389. Presses for moulding footwear and other hollow articles from rubber &c. BATA, NARODNI PODNIK. Sept. 3, 1946, No. 26488. Convention date, Sept. 17, 1943. [Class 87 (ii)] A press for the manufacture of hollow articles, e.g. footwear of rubber or other thermoplastic material, comprises a mould core and lateral and upper mould jaws which are movable towards and away from the mould core and is characterized in that the motions of the mould jaws toward or away from the mould core 15 are imparted to them by a moving mechanism having two pairs of press yokes which move with respect to the,mould core and are connected by beams. The mould side-parts 1, 2 and heating cheeks 3, 4 are coupled by arms 13 to the connecting beams 10 of pairs of yokes 9, 91 and move to close the mould as the yokes move towards each other. The yokes, guided on columns 11, are moved by driving screws 24, having left- and righthanded threads engaging collars 31 fixed in the connecting beams 10. The screws are rotated by a motor 25, worm drives 28 and other gearing being immersed in an oil bath in the base of the press. The upper part of the mould 32 with heating plate 34 is mounted so as to be vertically displaceable on the upper yoke 9 and moves down with this yoke to touch the sole of the shoe. Further (pressing) movement of the upper part 32 is caused by upward movement of the lower yoke 91 which acts, through springs 41 and rods 43 on the outer ends of levers 37. These bear, at their shorter ends against the heating plate 34. The mould is adjustable by means of rotatable eccentric sleeves 17 on which the arms 13 are mounted. These may be separately adjustable, or geared together for simultaneous adjustment. One of the arms 13 is divided into two parts 18, 19, one of these parts 19 carrying rigidly bolts 20 which have shoulders bearing against rings 21 fixed in the other part 19. These rings are sheared through by the bolts when the maximum admissible pressure of the press is exceeded. Modifications are referred to in which (a) the closing of the press is effected by separation of the yokes, (b) the yokes are moved by rack and pinion, (c) horizontally or obliquely moving yokes are used, and (d) the yokes are stationary and the press parts moved instead. Specification 518,973 is referred to.
Patent GB-1440154-A (GB)
Title: Apparatus for separating magnetizable castings from casting moulds of sand or similar materials
IPC: B22D29/00
Filed: 1974-06-14
Abstract: 1440154 Extracting castings DANSK INDUSTRI SYNDIKAT A/S 14 June 1974 [9 July 1973] 26566/74 Heading B3F [Also in Division H1] Castings 3 are removed from sand moulds 2 by means of a plurality of magnets 18 which are moved towards the end of a row of moulds until each of the magnets is in contact with a surface of the casting and are then collectively moved away from the moulds. The magnets 18 are mounted in a casing 12 suspended from a carriage 14 movable along a pair of guides 15. When a magnet first contacts the surface of the casting further movement of the carriage causes the magnet to be pressed back relative to the casing 12 against the action of a spring. This causes the magnet to rotate so that the front face of the magnet scratches away any sand remaining on the casting, and permits all the magnets to contact the surface irrespective of the shape of the latter. The magnets are then locked in position relative to one another and collectively moved away from the moulds. A stripper plate 19 provided with a hole for each of the magnets and movable relative to the casing 12 then pushes the casting off the magnets so that it drops on to a conveyer 22. The moulds 2 are movable along a track 1 provided with a frame 5 carrying a hook 6 which holds back the exposed casting 3 after the preceding mould part has been pushed over the end of the track 1 on to a conveyer 7.
Patent GB-827145-A (GB)
Title: Improvements in or relating to methods of joining glass
IPC: C03B23/217
Filed: 1958-08-19
Abstract: 827,145. Joining glass parts together. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 19, 1958 [Aug. 22, 1957], No. 26636/58. Drawings to Specification. Class 56. In joining pre-heated glass edges together (particularly those of the cone and screen of a cathode ray tube) by holding them together and passing an electric current through the glass, the current is temporarily interrupted during the process. This allows the (hotter) outer sides of the edges to cool somewhat so that, on resumption of the electric heating, a more uniform temperature across the edges finally results. The period of interruption may equal that of the initial electric heating and be half that of the subsequent.
Patent GB-827146-A (GB)
Title: Improvements in or relating to instantaneous water heaters having thermostatically controlled gas valves
IPC: F23N5/06
Filed: 1956-01-04
Abstract: 827,146. Temperature-responsive activating-elements. MAIN WATER HEATERS Ltd., CHAPMAN, F. W., and CLARKE, H. Jan. 4, 1957 [Jan. 4, 1956], No. 26668/58. Divided out of 825,746 [Group XXIX]. Class 64(2) Also in Group XXIX] A gas-fired water heater of the instantaneous kind having a sinuous water passage 43 provided with fins 44 arranged above a burner, has a thermostat with a pilot bulb 47 filled with vapour or vaporizable liquid in contact with the passage 43 and a bellows 22 which operates a valve 23 controlling the flow of gas to the burner. As shown, the bulb 47 is rigid but it may itself be constituted by a bellows, or it may be semi-rigid and so shaped as to provide an effective contact area between it and the bend of the sinuous water passage.
Patent GB-339248-A (GB)
Title: Improvements in screw propellers
IPC: B63H1/12
Filed: 1929-09-02
Abstract: 339,248. Halvorsen, O. G. Sept. 2, 1929. Screw propellers.-A screw propeller blade is formed with a curved screw face directed in a plane perpendicular to the axis, the shape of the curve being such that incipient radial flow of the fluid is neutralized jointly by the radial component of the reaction on the surface and the torque. The propeller blade is comprised of a surface which in planes perpendicular to the axis are curves 1 - - 5. These curves have a neutral line fTg at which the radial flow changes from an inward to an outward one. The curve. ATO, Fig. 11, is tangential at T the neutral point to the radial line OT and is progressively changing in direction being in one direction as at the tangent at k and in the opposite direction as at h. In a modification, the curve in the plane perpendicular to the axis may be used only in the inner portion between the neutral line and the axis and beyond that the curve may be curved in a plane containing the axis. Specification 26430/10 is referred to.
Patent GB-166504-A (GB)
Title: Improved apparatus for the automatic regulation of the ignition in internal combustion engines
IPC: F02P5/06
Filed: 1920-09-18
Abstract: 166,504. Schneider et Cie. July 10, 1920, [Convention date]. Timing.-The fuel-supply mechanism and the centrifugal governor 1, responsive to the speed of the engine, are jointly connected to the shaft 8 so that, while this shaft in moving the lever 9 through the angle a8b produces no substantial adjustment of the lug b<1> attached to the interrupter casing 6, further increase of speed or decrease of load in moving the point b of the lever 9 in the direction of the point c causes a rotation of the casing 6 and consequent retardation of the ignition. A cam 13 may be substituted for the lever 9. One portion of this cam is concentric and its movement therefore produces no adjustment of the roller carried by the end of the rod 10. Further movement of the cam, however, brings the portion be into engagement with the roller and, owing to the spring 14, a corresponding adjustment of the rod 10 and interrupter casing results.
Patent GB-888701-A (GB)
Title: Improvements in or relating to automatic machinery
Inventor: BUTLER KENNETH JAMES
IPC: G05B19/14
Filed: 1958-08-20
Abstract: 888,701. Knitting-machines. BRITISH RAYON RESEARCH ASSOCIATION. Aug. 20, 1959 [Aug. 20, 1958], No. 26732/58. Class 74 (2). [Also in Groups XXIX and XXXVIII] The movements of each of the guide-bars of a high-speed warp knitting machine are effected by an hydraulic ram under the control of six hydraulic indexing jacks which are selectively controlled by signals derived photo-electrically from a loop of perforated opaque tape, the perforations determining the pattern to be knitted. Each guide-bar is moved by an hydraulic ram 102, Fig. 10, controlled by a pilot valve 100 in correspondence with the position of a member 87. There is a link 94 pivoted to the pilot valve 100 and ram 102, movable by the member 87 against a compression spring 92, so as to make the movements of ram 102 and member 87 proportional. A timing valve 101 controlled by a pilot valve 18 cam-actuated by the knitting- machine ensures that the ram 102 can only move when the guide-bar is clear of the needles. The member 87 can be moved to any one of 28 discrete positions by the selective operation of six solenoid controlled indexing jacks 83, 84, 85 arranged in two banks 81, 82. In each bank, the three jacks are arranged in series, so that the piston 85a of the first jack, Fig. 8, moves the cylinder 84b of the second, and the piston 84a of the second jack moves the cylinder 83b of the third jack. Hence the position of the output shafts 86 of each bank and the position of member 87 depends upon sum of the movements of the individual jacks. The strokes of the jacks are graded on the scale 1, 2, 4, 7, 7, 7 to provide the 28 discrete positions. The six solenoid valves controlling the jacks are selectively energized by individual transistor amplifiers under the control of a six-track perforated tape, the perforations being detected by six photo-transistors. The tape, Fig. 4 (not shown), is driven in synchronism with the knitting- machine. As described in Specification 879,869, each photo-transistor controls a differential amplifier, the outputs of which can be passed by gating diodes to a bi-stable pair which control the particular solenoid. The gates are rendered conductive by pulses from a contactbreaker operated in synchronism with the knitting-machine to prevent false operation. The inclusion of the bi-stable pair is to enable the information to be stored even if the machine is shut down. The operating cycle is as follows. At the end of the shog, the timing valve 101 closes to lock the guide-bar. The contactbreaker applies a gating pulse to the transistor circuits so that the tape is read and the indexing jacks take up a selected position. The guides enter and leave the needles. The timing valve 101 opens so that the guide bar can move and the lap occurs. The guides again enter and leave the needles. The guide-bar is locked by the timing valve 101, the next row of holes in the tape is read and the indexing jacks take up their next position. Timing valve 101 opens, the guide bar moves again, and the shog commences, &c.
Patent GB-267395-A (GB)
Abstract: 267,395. Falkirk Iron Co., Ltd., and Muirhead, W. D. Aug. 11, 1926. Dampers; ashes and the like, removing; doors; baffles; supports for articles to be heated.-In a stove having a hot air chamber below the firegrate, with or without an oven on one or both sides of the fire, a mechanical arrangement is provided for operating in. conjunction a radiating means disposed below the fire and movable to discharge ashes into an ashpan, and means for controlling the supply or part of the supply of air for combustion. In the form shown in the Figure, a substantially rectangular refractory firebrick 1 is carried by a cast iron skeleton frame 2 having lugs 4 bearing in sockets 5 at the back of a hot air chamber 6 arranged below a firebox 3. Mounted in front of the chamber 6 is a fixed casting 12 having an arcuate lower part 12a for receiving an arcuate plate 13. the upper corners of which carry upstanding lugs provided with laterally projecting pins 16 which pass through vertical slots 17 in brackets 18 on the sides of a slidable trivet 11 and enter arcuate slots 19 provided on portions 20 projecting from the chamber 6. The plate 13 also carries lugs 23 to which are connected the upper ends of bent rods 21, the lower ends of which are connected to lugs 22 on the skeleton frame 2, so that by drawing down the arcuate plate 13 by means of a handle 14, the trivet 11 is moved outwardly to admit air to the chamber 6 and simultaneously the front end of the firebrick 1 is lowered to discharge ashes into an ash pan 24. The lower edges of the slots 19 are corrugated so that the pins 16 may be placed in any of the depressions 19<a> to hold the trivet 11 and firebrick 1 in any intermediate position. Air also enters the fire box 3 through baffle-controlled apertures 29 and passages 28<a>, 28<b> in a door 28. The hot gases pass through a flue 27 between a boiler 31 and a firebrick 10 arranged at the back of the chamber 6, and through an oven flue 26 below a hot plate 32, the oven being protected by refractory firebricks 8, 9 arranged respectively in the fire box 3 and chamber 6.
Patent GB-1283019-A (GB)
Title: Improvements in or relating to electronic display apparatus
Inventor: DICKEY MARCUS P
IPC: G01R13/40
Filed: 1971-04-19
Abstract: 1283019 Electronic display apparatus HONEY WELL Inc 19 April 1971 [16 April 1970] 26794/71 Headings G4H and G5C An electronic display device provides a visual indication of a measured quantity, simulating the display of a pointer that moves over a static scale. The device comprises two parallel rows A, B of light emitting diodes which are connected in blocks XO-X(n-1), a group of three diodes, e.g. YA2, YB2, YB3, being energized at a location along the rows A, B that is determined by the input signal. Information in the form of BCD (Binary Coded Decimal), representing a unit digit and a tens digit, is imposed on line sets 50, 52 which are connected to converters 54, 56 respectively. These convert the BCD to decimal information, the decimal units being developed on one of ten output lines Y0-Y9, the decimal tens on lines X0-X9. The lines X0-X9 determine in which block X0-X(n-1) a group of diodes are to be activated, the lines Y0-Y9 being split to activate diodes YA0-YA (m-1) and YBOYB (m-1) columns A and B respectively. The diodes Z0-Zn are required only when diodes YA0 or YA (m-1) are activated, the activation of lines Z0-Z10 being governed by a 2 input OR gate system 60. Liquid crystals may replace the diodes.
Patent GB-478016-A (GB)
Title: Improvements in a process for producing very hard substances of high mechanical resistance
IPC: C22C1/10
Filed: 1936-10-05
Abstract: Hard substances are obtained from difficultly fusible borides, carbides, nitrides, and silicides by directly heating one or more of such compounds, or the ingredients necessary for synthesizing them, in an electric arc above the fusion temperature, e.g. 3400 DEG  C. and above, the heating being carried out in the presence of atomic hydrogen obtained by supplying hydrogen and splitting it wholly or partially under the influence of the arc struck between electrodes of tungsten, molybdenum, or other metal having the same effect.  The substances referred to include borides, carbides, silicides, and nitrides of tungsten, molybdenum, titanium, vanadium, zirconium, and cerium as well as carbide, silicide, and nitride of boron, and boride, carbide, and nitride of silicon. Prior to or during the melting period, a small quantity of an oxide or of a carbonate of a readily fusible metal, e.g. cobalt, nickel, iron, copper, manganese, or silver, may be added to the constituents of the charge, together with a sufficient quantity of a reducing agent, e.g. carbon, to reduce the compound.  The fusible metals so introduced vaporize and leave practically no trace in the finished hard substance.
Patent GB-1497890-A (GB)
Title: Motor-driven lawn mowers
IPC: A01D34/63
Filed: 1975-06-25
Abstract: 1497890 Lawn mowers STIGA AB 25 June 1975 [26 June 1974] 26969/75 Heading A1F A motor driven lawn mower, having a casing 1 enclosing a rotary cutting system 2 and in which air carries grass cuttings out of the mower casing, comprises air inlet and outlet channels defined by vertical baffles 8 and 6 extending downwardly from the upper walls of a grass collector 7- and the casing 1 respectively such that air enters through vents 10, passes through the left side of a grass ejection opening 5 in the casing 1, circulates around the cutting system 2, carries grass through the right side of opening 5 into grass collector 7 and exits through vents 15. The cutting system is a rotary disc or flat bar carrying blades. A curved baffle 6 or one bent into position 6' may be used. The grass ejection opening may be at the side of the mower. A vane 16 mounted above the cutting system 2 may further define the air inlet passage.
Patent GB-533045-A (GB)
Title: Improvements in apparatus for the delivery of foam
IPC: B01F5/04
Filed: 1939-10-02
Abstract: 533,045. Fire-extinguishing. PYRENE CO., Ltd. (Total Kommanditges, Foerstner & Co.). Oct. 2, 1939, No. 27028. [Class 47 (ii)] In an apparatus for the delivery of foam to an elevated position, such as to the top of an oil tank 9, an interruption 6 is made between a delivery pipe 4 and a riser pipe 7 so that aqueous foam initially formed and running back down the riser pipe can escape into a container 5. The bottom of the riser pipe is larger than the upper end of the pipe 4. The foamgenerating device consists of a branch pipe 1 constructed as described in Specification 403,291. Water under pressure and already mixed with a foam-forming compound is discharged through three nozzles 3 and draws air through the ena 10 of a branch pipe 1 leading to the pipe 4. Foam dropping into the container 5 is led back through a pipe 11 and nozzles 12 to a point where it is picked up by freshly-made foam formed by the atomizing of the jets from the nozzles 3.