baber/WOPTO huggingface dataset:
Patent GB-1363728-A (GB)
Title: Roadfinishing machines
IPC: E01C19/00
Filed: 1971-07-21
Abstract: 1363728 Automatic attitude control HONEYWELL Inc 21 July 1971 [31 Aug 1970] 34291/71 Heading G3R Also in Division G1] A control arrangement, for automatically controlling a road finishing machine which in operation makes several consecutive parallel passes in its road finishing operations and wherein it is desired to match the slope of the current pass of the machine to the slope of the surface prepared by its previous pass, comprises as shown Fig. 1 - a reference pendulum sensing means having an output indicative of the slope angle of the reference surface made by the machine in its previous pass and a pendulum sensor on the machine having an output indicative of the slope angle of the current pass, the outputs being compared to produce an error signal which is used to adjust the slope angle of the machine. The slope angle of the first pass is manually controlled in dependence upon the setting of a manually set point potentiometer P1 Fig. 2 and that of succeeding passes is automatically controlled. A switch S selects manual or automatic control. The machine pendulum sensor comprises a structure D carrying a weight W1 on one end of a shaft the other end of which carries a core C rotatable with the structure. The core co-operates with a transformer having a primary winding P and secondaries S1, S2 the outputs of which are fed to a comparator. The reference pendulum sensor is mounted on a ski attached to the machine and which traverses the reference surface. Ganged potentiometers P3, P4 are to provide initial adjustment of the reference potentiometer P2. When the core C is in a neutral position there will be equal voltages across the secondaries the outputs of which are full wave rectified by diode bridges Fig.3 (not shown) connected together in series additive fashion. The potential at the junction of the two bridges is compared in a differential amplifier with that of the wiper (pendulum) arm of P2 or wiper of P1, any difference representing the error signal, the potentiometer's P2 and P1 being selectively connected across the two rectifier bridges depending upon whether automatic or manual control is required.
Patent GB-1172978-A (GB)
Title: Improvements in or relating to the manufacture of Cast Irons
Inventor: DAWSON JOHN VICTOR
IPC: C21C1/10
Filed: 1965-12-10
Abstract: 1,172,978. Inoculant for cast iron. BRITISH CAST IRON RESEARCH ASSOCIATION. Nov. 28, 1966 [Dec. 10, 1965; July 30, 1966 ], Nos.52609/65 and 34321/66. Headings C7A and C7D. An inoculant for cast iron consists of: - Si 15-99À5% Ca not more than 0À35% Sr more than 0À1%-0À4% (with the Ca content not exceeding the Sr content), any balance being iron. An alternative inoculant contains: - Si 15-90% Ca not more than 0À35% Sr 2À5-10% any balance being iron. Either of the alternatives may be modified by the pressure of up to 5% Al. Examples show the effect of the inoculants on flake graphite and nodular irons.
Patent GB-762969-A (GB)
Title: Improvements in or relating to hydraulic devices for use in mines
Inventor: MCKEE SAMUEL ABERCROMBIE
IPC: E21D11/14
Filed: 1953-12-10
Abstract: 762,969. Hydraulic pit-props. COAL INDUSTRY (PATENTS), Ltd. Dec. 10, 1954 [Dec: 10, 1953], No. 34427/53. Class 20(2) [Also in Group XXIXJ A hydraulic pit-prop comprises a hollow ram 15 slidable in a cylinder 12 and carrying an inner cylinder 28 accommodating a differential piston 29. Liquid is admitted through an inlet pipe 20 a valve 21 and a pipe 22 to the space below the ram to bring it into contact with the roof. A valve 30 is then opened to admit liquid to the larger end of the piston 29 to increase the pressure of the liquid beneath the ram. When a predetermined pressure is reached a relief valve opens and allows liquid to escape through pipes 22, 36. To collapse the prop valves 31, 32 are opened and the liquid escapes through an outlet pipe 34. In a modification the inner cylinder and differential piston are dispensed with.
Patent GB-978216-A (GB)
Title: Shock-resisting motor vehicles
IPC: B60R19/00
Filed: 1961-09-26
Abstract: 978,216. Road vehicle bodies; vehicle doors and bumpers. J. J. M. J. GERIN. Sept. 26, 1961 [Oct. 7, 1960], No. 34457/61. Headings B7B and B7J. The streamlined doorless car of Fig. 1 is stiffened against collision shocks by a centre section 1 constructed as shown from a main horizontal rib 1A and auxiliary ribs 1B, 1C, 1E. The body is constructed from longitudinal strips such as 4 (A-F), Figs. 2, 3, which are riveted or welded either between two of the ribs 1 (A-D), or as shown for the strips 4A, 4E, 4F, between a rib and a vehicle component. In Fig. 3 the bent edges of the strips 4C, 4D are fixed by interlocking strips 8 to brackets 6C, 6D connected to the rib 1C. In Fig. 7, access to the car is obtained by lowering a window 18 and pivoting a section 16 of the roof. In addition, the roof 16 may be removed, folded in half, and stowed within the car in the dotted position shown. In a car provided with side doors, Fig. 14, each door is stiffened by members 20, 21, 22, and by ribs 1 (A-D) which are aligned with the ribs on the main part of the body. When the door is closed, angle brackets 23, 28 bear against a bottom frame member and a member 27 rigidly secured to the door pillar 24 and a transverse tube 25. Body reinforcing plates in the form of bulkheads may also be provided. In Fig. 11 the car carries a wheel 33 which acts as a bumper, and the laterally extending reinforcing rib 1E provides protection for the rear engine and wheels. Specification 889,960 is referred to.
Patent GB-521850-A (GB)
Title: Improvements in and relating to thermionic electrodes for electric discharge devices
IPC: H01J17/06
Filed: 1938-11-26
Abstract: 521,850. Thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 26, 1938, No. 34472. Convention date, Nov. 26, 1937. [Class 39 (i)] Thermionic cathodes or arc discharge rectifiers &c. have one part rendered emissive by heating current and another part becoming emissive on being heated by power losses in the discharge so that the required heating current is reduced and the total emission increases automatically with the load, substantial variations in the arc drop being thus avoided. The cathode may comprise inner and outer helices 20, 21 connected across common leads 14, 15 transverse to the arc. Each helix consists of a refractory wire core overwound with fine wire coated with thorium oxide or alkaline earth or other emissive material. The inner helix 20 is heated by current supplied through the conductors 14, 15 to produce an arc passing through the outer helix which is heated primarily by this arc rather than by current from the conductors 14. 15 or heat radiation from the inner helix. In modifications, the outer helix 21 is replaced by two concentric outer helices or is connected at both ends to one only of the conductors 14, 15 or is so connected to the conductors 14, 15 that current flows through it in a direction opposite to that of the current in the inner helix 20, thus eliminating magnetic effects and producing a uniform distribution of discharge current along the length of the cathode. In other modifications, the outer helix 21 is replaced by an open ended imperforate or mesh cylinder coated with emissive material. The gas filling may be mercury with argon or helium.
Patent GB-799859-A (GB)
Title: Improvements in or relating to laundry methods and machines
IPC: D06F39/08
Filed: 1956-11-12
Abstract: 799,859. Washing and drying machines. WHIRLPOOL CORPORATION, [formerly WHIRLPOOL-SEEGER CORPORATION] Nov. 12, 1956 [Nov. 17, 1955], No. 34540/56. Class 138 (2). A clothes washing machine 20 (Fig. 1) having a container 22, provided with a curved bottom wall 23 and a sump 24, inside which is mounted a perforated rotatable wash-basket 26 the rear wall 27 of which is connected to a shaft 28 driven by motor 66 through pulleys 67 and 38 linked by belt 68a, is fitted with a door 47. Fresh water is supplied through inlet 49 into the rotating washbasket, passes through the perforations in the basket into sump 24 where it is heated by heater 73 (Fig. 2) and is then removed by pump 61 to be returned to the wash-basket as a spray through nozzle 52. The spray extends across the basket and wets the clothes in quadrant I (Fig. 2) of the basket which rotates in an anticlockwise direction and raises the clothes into quadrant III from where they fall into quadrant IV to be wetted by fresh liquid supplied by nozzle 52. Articles are dried, first by centrifugal extraction and then by tumbling in a current of hot air obtained by circulating air, heated by passage over the electric heater 70, through the rotating wash-basket by an inlet opening 71 in the rear wall 36 and louvred outlet openings 72 formed in the front wall 42 which lead to the duct 41.
Patent GB-1277966-A (GB)
Title: Automatic telephone number information system
IPC: H04M3/487
Filed: 1969-07-09
Abstract: 1277966 Automatic exchange systems MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 9 July 1969 [11 July 1968] 34550/69 Heading H4K In an automatic telephone exchange an apparatus which causes dead number calls to be connected to a playback device which produces vocal announcements giving corresponding new numbers is characterized in that each announcement is compiled from message elements under the control of a magnetic core array. As described the playback device is a continuously driven drum each track of which is read by a photoelectric or magnetic read head. There are twelve tracks two of which produce synchronizing signals and the other ten relate each to one possible value of a digit, and carry a message "This telephone number has changed to" followed by the digit repeated say seven times, each repeat being separated by a synchronizing signal. The output from each digit track is coupled to every core 17 of the corresponding row S 0  to S 9 . Associated with each dead number line is a corresponding jumper wire 18 threaded through one core in each column C 1  to C 7 . A transistor amplifier is connected in series with this wire. The columns are enabled in succession by a counter stepped by the synchronizing signals such that the appropriate message is picked up by each jumper wire, e.g. the jumper wire shown picks up, "This telephone number has changed to 2" via the core in column C 1  and the subsequent digits "1", "0", "3", "4", "7" and "6" via respective cores in columns C 2  to C; taken from successive repeats of those digits.
Patent GB-913004-A (GB)
Title: Improvements in tea and like portable collapsible tables
IPC: A47B3/12
Filed: 1960-10-10
Abstract: 913,004. Folding furniture underframes. GOTT, N. Sept. 29, 1961 [Oct. 10, 1960], No. 34598/60. Class 52 (3). A collapsible table has three legs a of which two are each hinged to the third leg at b and c and have a tongue and groove coupling with each other so as to be separable when desired, each leg having a turned-over end e to engage a disc-like top d.
Patent GB-343481-A (GB)
Title: Improvements relating to hair drying apparatus
IPC: A45D20/22
Filed: 1929-11-13
Abstract: 343,481. Drying-appliances for the hair. SUTER, E. F., 30, West 54th Street, New York, U.S.A. Nov. 13, 1929, No. 34639. [Class 131.] In hair-drying apparatus, wherein warm air is passed into and withdrawn from a helmet placed over the head, the helmet 4 comprises inner and outer shells 5, 6 the air being supplied by a blower 11, passing over electric heating elements 14 to the space between the shells and being thence drawn over the hair and through a passage 13 to the inlet of the blower. Chemical or other air-drying means 15 may be provided in the passage 13 or elsewhere in the circuit. The front edge of the shell 6 is turned under as at 10 to deflect the air backwardly and beneath the shell 5. The front portion of the helmet is hinged at 19 and can be lifted up to enable the helmet to be placed in position and to permit inspection of the hair during drying. The shell 5 may be perforated at those parts where the hair is thickest. The whole apparatus is mounted on an adjustable stand 1. In a modification the helmet is made in four sections covered by a twopart outer shell, the sections being hollow and being supplied with air through separate passages each controlled by a butterfly valve. The air is delivered to the hair through slits in the outer ends of the sections. The two front sections are hinged and connected to the upper part of shell.
Patent GB-399047-A (GB)
Title: Improvements in the suspension of railway cars and other rail vehicles
IPC: B61F5/16
Filed: 1932-12-07
Abstract: 399,047. Railway - vehicle undercarriages. BUGATTI, J., Molsheim, Bas- Rhin, France. Dec. 7, 1932, No. 34680. Convention date, Dec. 8, 1931. [Class 103 (vi).] In a railway car, locomotive, or other rail vehicle, relative movement between the body and bogie or axles in the lateral and/or vertical direction is damped by arranging the king-bolt 3 to depend within a cylinder 4, which is pivotally mounted on the bogie or axles and the oscillations of which are damped by an elastic mounting. In the construction shown in Figs. 2 and 3, intended to damp relative lateral displacements, the spherical lower end 3a of the king-bolt 3 closely fits the cylinder 4 which has integral trunnions 8 engaged in bearings 9a in a frame 9 mounted on the bolster 10. Oscillation of the cylinder 4 is resisted by friction plates 14 pressed by a variable spring pressure into contact with friction surfaces 13 on the cylinder, while additional damping springs 12 serve to return the cylinder to its normal central position. The weight of the vehicle body is taken by springs 17 provided with seats 18 sliding on tracks 19 on the bolster. In a modification the sliding friction elements 13, 14 are replaced by rotary friction elements. In another modification, Fig. 8, intended for damping relative vertical movement and to be used either alone or in combination with the damping device previously described, the ball 3a engages within a spherical socket in a dashpot piston 24 slidable within a cylinder 4 which is mounted in a similar manner as in the construction shown in Fig. 2. Flow and return valve-controlled channels 26a, 26b in the piston 24 regulate the flow if liquid 4a from and to the lower part of the cylinder. In a further construction, Fig. 9 (not shown), the ball 3a engages a socket in a member which slides within a pivoted tubular guide and is connected by a second sphericalended rod to a dashpot piston.
Patent GB-968646-A (GB)
Title: Stators for dynamo-electric machines
Inventor: WEST JOHN GODFREY WILSON
IPC: H02K1/14
Filed: 1962-09-12
Abstract: 968,646. Poles for dynamo-electric machines. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 27, 1963 [Sept. 12, 1962], No. 34799/62. Heading H2A. Salient stator poles which are secured inside a circular yoke, are made of elliptical section so that preformed circular coils will grip in place during assembly into the yoke. The minor axis of the ellipse extends circumferentially of the yoke. The yoke may be thickened at the places where the poles are attached (Fig. 2, not shown). The pole is preferably secured at the joint in the yoke, e.g. by bolts or by welding to a plate 11 through a hole in the yoke, as shown. The sharp intersection angle between the poleside and the yoke may be removed by the interposition of a faired plate or by beading round the pole-base.
Patent GB-1101431-A (GB)
Title: Improvements in or relating to combine harvesters
Inventor: KEPKAY LESLIE LYONS
IPC: A01F12/44
Filed: 1963-09-05
Abstract: 1,101,431. Combine-harvesters. MASSEY FERGUSON-PERKINS Ltd. 18 Aug., 1964 [5 Sept., 1963; 28 Dec., 1963], Nos. 35042/63 and 51100/63. Heading A1F. A grain-saving attachment for a combine harvester is attached to the rear end of the straw rack 2 and comprises a grid 6 of parallel bars extending downwardly and rearwardly from the rear end of the strawrack so as to receive grain and straw falling therefrom the grid permitting the passage therethrough of the grain, which falls on to a shoot 4 and is returned to the machine by conveyers 7, 8, but causing the straw to pass thereover and out of the machine. The attachment is housed partly in the harvester-casing 1A and partly in a hood 16 hinged to the open lower end of the casing 1A. The hood also houses a horizontal bladed rotor 11 which sweeps the straw out of the hood and may co-operate with a set of spring-loaded blades 18 to chop the straw as it is ejected. An auger 7 at the base of the shoot 4 is co-axial with the lower sprocket of a chain conveyer 8 which feeds the grain back into the machine. The grid 6 is adjustable longitudinally in slots 26 and a lip 22 at the lower end of the shoot 4 is similarly adjustable. The hood 16 is mounted in a frame 12 which can be pivoted about the axis of the auger 7 to permit access to the interior of the casing 1A. When the rotor blades 13 co-operate with the fixed knives 18 the hood is replaced by another hood 21 having pendant partitions. In a modification (Fig. 6, not shown) a further rotor is mounted at the upper end of the grid 6 and the straw rack has an upward and rearward extension to increase the scatter of the grain and straw falling on to this rotor.
Patent GB-381784-A (GB)
Title: Improved means for eliminating interference in electric signalling systems
IPC: H04B1/12
Filed: 1931-12-19
Abstract: 381,784. Wireless and wired wireless receiving systems ; code telegraphy. FUCHS, J., 5, Jasomirgottstrasse, Vienna. Dec. 19, 1931, No. 35190. Convention date, Dec. 19, 1930. [Classes 40 (iii) and 40 (v).] In a wireless, wired wireless, or audio frequency signalling system, interference is eliminated by combining the received signal with two or more local frequencies so as to produce two beat frequencies, one audible and the other supersonic, the two beat frequencies being subsequently rectified and recombined in such a way that interference is balanced out. As shown in Fig. 2, a circuit F tuned to the incoming frequency is influenced by two local oscillators U1, U2 and the resulting beats, one audible and the other supersonic, are separated in the tuned output circuits H1, H2 of a detector M. Each of the circuits H1, H2 is coupled to the grid circuit of further detectors G1, G2, the plate circuits of which act oppositely on the output transformer T. In a modification, a further heterodyne is introduced in one or both of the circuits H1, H2, Fig. 3 (not shown). In receiving audio-frequency telegraph signals, these are first stepped up to a supersonic frequency and then treated as described above.
Patent GB-487414-A (GB)
Title: Improvements in or relating to a method of and apparatus for removing water and the like form a travelling web of paper, such as a web of waxed paper
IPC: D21H25/10
Filed: 1936-12-23
Abstract: 487,414. Drying paper. BLACK-CLAWSON CO. Dec. 23, 1936, No. 35282. Convention. date, July 11. [Classes 96 and 140] [Also in Group XIII] Paper 11, e.g. to which paraffin wax &c. from a tank has been applied as with rollers &c., and has been cooled by submerging in water, passes over a roll 20, water flung off being caught by a plate 40 and drained at 41 and 42. The paper then passes in a curved path past a series of doctor blades 26, 27 on each side and inclined at less than 45‹ to the paper. The appliance is supported above the cooling tank, water draining to the sides 23 of the framework and back to the tank. The blades 26, 27 may be rigid and screwed to plates 28 clamped, with spacing blocks 31, by bolts 30 passing through slots to allow horizontal adjustment.
Patent GB-1042757-A (GB)
Title: Improvements relating to excitation arrangements for synchronous machines
IPC: H02P9/30
Filed: 1963-09-06
Abstract: 1,042,757. Alternators; converting. LICENTIA PATENT - VERWALTUNGS G.m.b.H. Sept. 6, 1963 [Sept. 6, 1962], No. 35354/63. Headings H2A and H2F. In an excitation arrangement for a synchronous machine, preferably a turbo-generator, having rotating controllable semi-conductor rectifiers connected to a main exciter at least one A.C. generator is provided for supplying firing pulses to the rectifiers and the phase of the pulses may be varied by altering the magnetic axis of the A.C. generator. The magnetic axis may be adjusted either by rotation of its stator or electrically by altering the relative excitation of two control windings mutually displaced by 90 degrees. The associated static apparatus, shown below line 21, includes amplifiers R and resolvers F used to produce signals having the necessary amplitude and phase for feeding the pairs of control windings D6, D7 in the A.C. generators to produce correctly phased firing pulses. These signals are generated from a main control signal Ust which is derived from the voltage generated in the generator winding D2, i.e. the terminal voltage, and the current in the field windings, a voltage proportional to the latter being generated in windings D10, D11. The controllable rectifiers are connected as two counter parallel groups of six elements, each controlled by an A.C. generator and arranged so that one group supplies the whole exciting current for normal operation whereas the other only supplies current intermittently and therefore is of smaller rating. Advantageously, the group which is not conducting is held in a condition of full inverter control by means of the stages 45, 46, 47, 48. The A.C. generator used for supplying firing pulses has a normal rotating polyphase winding (six-phase) connected through a circuit including a saturable reactor, for producing steep fronted pulses, to the trigger electrodes of the semi-conductor devices.
Patent GB-1218994-A (GB)
Title: Improvements in or relating to electrical control equipment
Inventor: LOUDA ZDENEK
IPC: B65B1/32
Filed: 1968-07-25
Abstract: 1,218,994. Control of A.C. motors. SKODA OBOROVY PODNIK. 25 July, 1968 [28 Aug., 1967], No. 35463/68. Heading H2J. [Also in Division B8] An electrical system for controlling a portioning machine comprising a conveyer 39 carrying containers 2 and a travelling hopper 7 containing the material to be portioned such as tobacco, hopper 7 moving with container 2 and filling one container then moving above the next container to fill that, comprises one control circuit to speed up the portioning machine and another control circuit to slow down the portioning machine, both control circuits being timed by a common timer, the control circuits being automatically operated and rotating in different directions, a servomotor 13 which adjusts the speed control mechanism such as variable speed gear of the portioning machine. If the machine is running too fast hopper 7 moves down to the lower end of the conveyer and switch actuating member 8 on hopper 7 closes contact 9 energizing D.C. relay 16 which closes contacts 17, 18, 19 to rotate servomotor 13 in a direction to slow down the machine. Contact 9 also puts a supply through variable resistor 32 on to capacitor 36 and D.C. relay 33 in parallel, so that after a time delay, when capacitor 36 is fully charged, D.C. relay 33 operates and opens contact 34, dropping out relay 16 isolating servomotor 13. If the machine is running too slow hopper 7 moves up to the top of the conveyer and switch-actuating member 8 closes contact 10 which energizes D.C. relay 21 which closes contacts 22, 23, 24 to rotate servomotor 13 in the opposite direction to speed up the machine. Again, contact 10 puts a supply on to capacitor 36 and D.C. relay 33 in parallel so that after a time delay relay 33 is energized to open contact 35 to drop out relay 21 isolating servomotor 13. Switches 25 and 29 are manual control switches for coarse speed control. Switch 11 is a contact on the packing machine to which the portions are delivered and switches 12 and 14 are minimum and maximum limit switches on the variable speed gear of the portioning machine. Switches 3 and 4 are limit switches for switching off, and switches 5 and 6 are restart switches.