baber/WOPTO huggingface dataset:
Patent GB-767980-A (GB)
Title: Gas regulating and stop valve device
IPC: G05D23/12
Filed: 1954-06-15
Abstract: 767,980. Fluid-pressure servomotor control systems. A.S.W. APPARATENFABRIEK N.V. June 15, 1954 [June 24, 1953], No. 17597/54. Class 135. A gas regulating and stop valve in which the valve 4 has substantially the same area as its operating diaphragm 5, the gas supply pressure exists at 3 between the valve and diaphragm, a control pressure from gas flowing in a separate branch 27 exists on the other side 14 of the diaphragm, and the weight of the diaphragm and valve is balanced by a spring 7 in the closed position. With main and pilot taps 16 closed mains gas pressure at 2 exists in the chamber 8 and via orifice 24, in chamber 23 so that the diaphragm 22 sags and opens valve 26. The chamber 14 below the diaphragm 5 actuating the main valve 4 is thus supplied with mains pressure via pipe 27 and orifice 28, and via pipe 17 by-passing the thermostatic valve 11 responsive to the temperature of a gas-heated appliance, and via orifices 18, 20, 19. On opening and lighting first the pilot 13 and then the main burner connected to chamber 8, the risk of explosion, due to the main valve 4 only opening a very small amount because the thermostatic valve 11 is closed, is avoided since the mains pressure via pipe 27 and diaphragm 5 gives the valve 4 a large initial opening. After a while pressure leaks from chamber 23 and valve 26 closes so that the pressure in chamber 14 and the opening of valve 4 decreases to a value determined by valve 11. When more heat is called for, valve 11 opens and the increase in pressure in chamber 14 opens valve 4. The pressure in chamber 8 is made substantially independent of mains pressure variation by making the area of the diaphragm 5 substantially equal to or only slightly greater than that of the valve 4. The valve closes under its weight or a spring. In another embodiment the diaphragm 22, valve 26 and passage 27 are positioned in a hollow stem of the valve 4, and the compression spring 7 is replaced by a tension spring above the valve. In another embodiment the diaphragm 22, valve 26 and passage 27, and by-pass pipe 17 and throttles 18, 20, 19 are eliminated. In a further embodiment the valves 16 are placed upstream of the device and control a continuously-burning pilot since the pilot burner led from the device will be extinguished when the thermostatic valve 11 is closed.
Patent GB-964138-A (GB)
Title: Air springs for suspension systems and bellows therefor
IPC: B60G11/27
Filed: 1962-05-08
Abstract: 964,138. Pneumatic springs. FIRESTONE TIRE & RUBBER CO. May 8, 1962 [Dec. 22, 1961], No. 17600/62. Heading F2S. A bellows 10 for an air spring suspension system comprises an ellipsoidal air impervious bellows having truncated ends, the bellows being made of a flexible material. In the construction shown the bellows 10 is mounted by its wired beadings 13, 14 between end plates 20, 29, the former being clamped to a pedestal 23 and member 21 by a nut 26 and bolt 25 and the latter being affixed to a member 22 by means 30. A bumper 27 is provided within end plate 20 resiliently secured to nut 26. The upper end plate 29 may be cup-shaped to provide a greater volume and a greater relative movement between the ends of the bellows (Fig. 3, not shown). The pedestal may also be modified. The bellows may be provided with an oilimpervious lining e.g. neoprene.
Patent GB-355358-A (GB)
Title: Improvements relating to winches
IPC: B66D1/12
Filed: 1930-03-22
Abstract: 355,358. Winches. DEMAG AKT.-GES., Duisburg, Germany. March 22, 1930, No. 17630/31. Convention date, March 22, 1929. Divided on and addition to 355,307. [Class 78 (v).] The winch described in the parent Specification is modified by arranging that the axial movement of the shaft of the motor 1 is effeoted under the control of an electromagnet 28 disposed coaxially with it, and that the clutch 25, 26 which couples the motor shaft to the gearing co-operates with the braking surface 27 in such a manner that on axial movement of the motor shaft to engage the clutch, the brake is released simultaneously. The cone 26 is mounted on a shaft 2 which is connected with internal teeth 8 on the winding drum 9 by a train of gears 4, 5, 7. The drum 9 rotates on a journal 10 secured at 11 to the flange of the gear casing 12. Packing 17, 18 prevents the entry of sea-water into the gear casing. Seepage water is carried away by a pipe 19. Lubrication is effected by a toothed wheel 22 which dips into an oil sump 23. When the motor and gearing are out of operation, the cone 26 bears against the braking surface 27, and the cone 25 bears tightly against the cone 26. When the motor is started, the field magnets attract the armature and draw it and the motor shaft to the right against the action of the spring 29, so that, at first, the cone 25 slips with respect to the cone 26 and eases the starting impulse of the motor. A firm coupling is established between the cones when the motor shaft is moved to the left by the energization of the electromagnet 28. The speed of the winch can be regulated by a Leonard system arranged in the base of the gear casing.
Patent GB-995099-A (GB)
Title: Hydraulic braking systems
IPC: B60T8/18
Filed: 1962-05-08
Abstract: 995,099. Hydraulic brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as A. TEVES MASCHINEN - UND ARMATURENFABRIK KOMM.-GES.]. May 8, 1962 [July 18, 1961], No. 17655/62. Heading F2F. An hydraulic braking system for vehicles comprises a pressure-reducing valve between a master cylinder and wheel brake-operating cylinders. The valve has a stepped piston 8, 9, disposed in a stepped bore of a casing 1, the end 9 of the piston experiences the master cylinder pressure connected at 3 and the end 8 experiences the wheel brake cylinder pressure connected at 7. A path 2 connects the master cylinder to the wheel brake cylinders and a valve 17 urged to the closed position by a spring 16 and urged to the open position by a plunger 20 loaded by an adjustable spring 21 controls the flow of pressure fluid along the path 2. Normally the valve 17 is held open and as the master cylinder pressure rises the wheel brake pressure rises equally as the stepped piston moves to the left, compressing spring means 14. At a predetermined pressure when the force of the spring 16 and the wheel brake cylinder pressure equals the force of spring 21 the valve 17 closes. Further rise in master cylinder pressure moves the stepped piston to the left, assisted by the spring means 14 so that the increase in wheel brake cylinder pressure follows a curve corresponding to the expansion of spring means 14. The curve becomes a straight line when the spring means 14 is completely unstressed but the rise in wheel brake cylinder pressure is less than the corresponding rise in master cylinder pressure in proportion to the ratio of the cross-sectional areas of pistons 8, 9.
Patent GB-151405-A (GB)
Title: Improved method of producing cliches made-ready for printing
IPC: B41M9/04
Filed: 1919-07-15
Abstract: 151,405. Sauer, E. July 15, 1919. Make-ready arrangements.-A method of producing a printing-plate made-ready for printing consists in coating a sheet of more or less transparent material such as acetyl-cellulose, celluloid, paper, or caseine, on both sides with sensitized gelatine, exposing it to light through a negative and developing in the usual manner. The relief thereby formed on the side adjacent to the negative forms the printing-surface, and the relief on the opposite side forms the make-ready. In preparing the plate, a layer of gelatine is applied to a polished surface, the transparent sheet is laid upon the gelatine, and a second layer of gelatine applied, after which the plate is removed from the support and chromated before use.
Patent GB-263687-A (GB)
Title: Improvements in and relating to bow ties
IPC: A41D25/02
Filed: 1926-07-15
Abstract: 263,687. Banks, C. E. July 15, 1926. Bows.-In bow ties of the type to be tied on the wearer and consisting of permanent bow wings attached at the centre to a neckband, which is looped around the wings to form the barrel of the bow, the neckband is made as shown in Fig. 2 integral with the wings. One layer 1 of the neckband continued as one wing 3 and the other continued as the other wing 2. A front piece 6 may be sewn over the wings or this piece may be attached at the centre only. In the construction shown in Fig. 6 one of the wings 2 is doubled forwardly to terminate in the single wing 2<a> and the other 3 doubled backwardly to terminate on the single wing 3a, the folds being secured together at the centre.
Patent GB-758359-A (GB)
Title: Improvements in or relating to means for adjusting the spacing of shafts or rolls
Inventor: STUCHBERY ARTHUR LESLIE
IPC: B41F31/30
Filed: 1953-01-26
Abstract: Micro-adjustment of the spacing between a pair of shafts or rolls, e.g. in printing machines or machines for applying thin coatings of liquids to surfaces, is effected by providing each shaft or roll, at or near its ends, with co-axial conically tapering surfaces, which are of similar but oppositely directed conicity to those on the other shaft or roll; the shafts or rolls are resiliently urged towards each other to effect contact between the tapering surfaces of oppositely directed conicity, and means are provided to effect relative axial movement of the shafts or rolls.  As shown, shafts 5, 16 carry respectively rollers 1, 2 and co-axial conically-tapering rings 15, 32, of oppositely directed conicity.  The roll 2 is a feed roll and dips in a trough 3 of coating liquid, <PICT:0758359/III/1> and the roll 1 receives a coating thereof which it transfers to another roll, not shown.  The shafts 5, 16 are geared together, in a manner permitting relative axial motion, by gears 13, 30, the shaft 5 having fixed bearings in brackets 7, and being located against axial movement.  The shaft 16 is provided with slidable bearing blocks 19 which are urged towards the shaft 5 by springs (not shown), and in which the shaft 16 is axially movable by a bush which is threaded into a bearing block 19 and is provided with a flange which forms a gear 24, which is secured to the other race of a ball-bearing, the iner race of which is secured to the shaft 16.  The bush is thus located axially on, but rotatable relatively to the shaft 16.  The collar may be rotated, effecting axial movement thereof and of the shaft 16, by means of a gear 37 on a shaft 36, provided with a handle 38 and collar 39, having graduations 40.  The gear 37 is engaged by shroud rings 25 secured to the gear 24, and it, the shaft 36 and the members carried thereby are thus constrained to move axially with the shaft 16, such movement being recorded by graduations 42 on a pointer 41, which also provides an index for the graduations 40.
Patent GB-896537-A (GB)
Title: Improvements in or relating to, liquid discharge nozzles and to compression-operated syringes fitted with such nozzles
Inventor: NEWTON-MASON HILTON ERIC
IPC: B05B9/08
Filed: 1959-05-26
Abstract: 896,537. Forcing liquids by gaseous pressure. TESTAR & SWAIN Ltd. May 26, 1960 [May 26, 1959], No. 17847/59. Class 102(2). [Also in Group XXIX] A horticultural syringe includes a non- metallic liquid container 1 which threadably receives the barrel 3 of a pump having a oneway valve at its lower end whereby air pressure is built up in the container to force liquid through a tubular connector 8 and a flexible tube 13 attached thereto to a spray lance 15 provided with an adjustable spray nozzle 16 (see Group XXIX).
Patent GB-715810-A (GB)
Title: Improvements in or relating to steering mechanisms for motor vehicles
IPC: B62D7/16
Filed: 1950-07-17
Abstract: 715,810. Motor vehicle steering arrangements. BAYERISCHE MOTOREN WERKE AKT.-GES. July 17, 1950 [April 6, 1949], No. 17848/50. Class 79(5) In a steering mechanism for independently sprung wheels supported by laterally inclined king pins the steering movement is transmitted to the wheels by main rotatable spindles, lying in the same plane as the king pins, and a divided track rod, the longer middle section of which is linked to projecting arms on the spindles and the end sections of which link the or other projecting arms on the spindles to steering arms, one of the spindles forming the driven shaft of the steering gear. In the embodiment shown in Figs. 1 and 3 the steerable wheels 1, 2 are suspended by wishbone linkages 3, 4 and have their kingpins 5, 5<SP>1</SP> inclined for camber. The wheels are steered by means of a handwheel 7 and a bevel steering gear, the output shaft 8 of which is inclined parallel to the shaft 5 and forms one of the spindles and carries the arms 10, 13. The arm 10 is connected to the wheel 2 by one of the end sections 11 and the steering arm 15, and the arm 13 is connected to the wheel 1 by the middle section 12, the arm 13<SP>1</SP> on the other spindle 8<SP>1</SP> which also carries the arm 10<SP>1</SP> being connected by the other end section 11<SP>1</SP> to the steering arm 15<SP>1</SP> of the wheel 1. The track rod section 12 may be disposed within the front cross frame member M. In another embodiment, Fig. 4, the track rod is formed of the sections 22, 23, 22<SP>1</SP> controlled through the arm 21 on the spindle 20, which forms the driven shaft of the steering gear, is arranged parallel to the cambered kingpin 24. The track rod is supported bv the arm 21<SP>1</SP> on the other spindle 20<SP>1</SP>, which is arranged parallel to the cambered king pin 24<SP>1</SP>.
Patent GB-1209000-A (GB)
Title: Master cylinder cap
IPC: B60T11/26
Filed: 1969-04-08
Abstract: 1,209,000. Master cylinders. BENDIX CORP. 8 April, 1969 [18 April, 1968], No. 17864/69. Addition to 1,084,377. Heading F2F. In a cap assembly for a split master cylinder reservoir 10 according to the parent Specification and wherein a flexible sealing member 52 adapted to follow fluid level variations in the two separate reservoir chambers 18, 20 is pressed on to the end edges of a peripheral wall 14 and an inner wall 16 by a flat surface on a cover 52, there being at least two independent relief valves each formed by the co-operation of a portion of the sealing member 52 bridging a space in the said flat surface with the edge of the wall 14 and provided for allowing communication of the chambers 18, 20 with the exterior of the reservoir upon a predetermined increase in pressure in the chambers, a third relief valve 78 is formed between the edge of the wall 16 and an adjacent portion of the member 52 bridging a space operatively provided in the said flat surface of the cover for allowing communication of the chambers with one another upon a certain pressure in one or other of the chambers developing of a lesser magnitude than said predetermined pressure. As shown, the relief valves are formed by providing indentations 76 in the cover 56, the valve 78 providing for the relief of pressure from one chamber to the other.
Patent GB-378143-A (GB)
Title: Improved apparatus for removing dust or small particles from cut tobacco for use in cigarette making machinery
IPC: A24C5/39
Filed: 1931-06-20
Abstract: 378,143. Cigarette-making machines. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN & IRELAND), Ltd., East Street, Bedminster, and COATES, A. F., Codrington Grange, Broadway Road, both in Bristol. June 20, 1931. No. 17876. [Class 130.] Dust &c. is removed from cut tobacco during its conveyance by a permeable carded roller 2 adjacent which is a dressing roller 3. A picker roller 4 discharges the tobacco on to a travelling belt 5 with which is associated a spiked roller 6, and a picker 7 delivers the tobacco to a shoot 8 located above a paper web 9. The roller 2 has perforations 11 and one or more suction chambers 12, 16 for the removal of the dust. From a chamber 14 air may be forced out of the drum to loosen and moisten or condition the tobacco. A suction chamber 17 in the dressing roller 3 may remove dust thrown up by the picker roller 4. In a modified construction, the roller 6 is perforated for the removal of dust therefrom. In apparatus, Fig. 3, in which the tobacco discharged by the picker roller 4 is delivered to a carded drum 23 from which it is discharged into a shoot by a picker roller 24, the drum 23 is perforated, and the dust is drawn into it. Air may be forced out of a chamber 27 to loosen the tobacco on the roller. The Provisional Specification states that dust &c. may be removed by using a permeable belt which conveys the tobacco to the shoot, the belt passing over a suction box.
Patent GB-461228-A (GB)
Title: Improvements in tuning apparatus for high frequency receiving systems
IPC: H03J7/16
Filed: 1936-06-29
Abstract: 461,228. Wireless receiving circuits.' BRITISH THOMSON-HOUSTON CO., Ltd. June 29, 1936, No. 18012. Convention date, June 28, 1935. [Class 40 (v)] In a superheterodyne receiver automatic fine-control of tuning is effected, following approximate manual tuning, by an error detector supplying a pair of saturable-core reactors which control the direction of rotation of an electric motor driving the tuning control devices. The tuning condensers 5, 11, 15 of the radio frequency amplifier 1, first detector 8, and local oscillator 13 of a superheterodyne receiver are unicontrolled by the knob 78 through gearing 80. The output from the I.F. amplifier 20 is applied through coupled series circuits 28, 32, 29, 33, each tuned to the I.F. to the signal detector 26 and thence through a resistance-coupling system 41, 43 to the low frequency stages 40, 52. The series circuit 47, 48, 49, of resistance, choke, and condenser, compensates for frequency distortion at low volume levels. The output from the system 32, 33 is also applied to an A.V.C. rectifier 65, the intermediate frequency potentials across resistances 66 and 67 being applied to the control grid, and rectified potentials across the anode resistance 71 are thence applied to the control grids of valves 1, 8, and 20. The I.F. coupling system includes a third pair of circuits 88, 89, coupled respectively,to 28, 29 and tuned 2kc. above and below the intermediate frequency. These circuits are connected to a pair of rectifiers 99. 100, the output circuits of which include a pair of saturable reactors 96, 97, the primary or D.C. control windings 94, 95 serving to vary the impedance of the secondary circuits which are fed with alternating current from source 97. Each of the secondaries is in series with one of a pair of field coils 86, 87, which control the sense of rotation of an induction disc motor 82 polarized by a field coil 84 fed from an A.C. source 85. The motor disc 82 drives through gearing and a friction drive 83, the control shafts of the tuning condensers. The action of this arrangement is that when circuit 88 or 89 is energized by departure from exact tune in either sense the rectified potential across winding 94 or 95 changes the impedance of and the current flow in field coil 86 or 87, thereby causing rotation of motor 82 in such sense as to restore exact tune. The circuits 88 and 89 are sharply tuned, and their resonant frequencies are so displaced that their resonance curves intersect on the steep portions of the curve. This results in substantial difference in the currents in windings 86, 87 during automatic tuning.
Patent GB-515972-A (GB)
Title: Improvements in or relating to apparatus for determining the velocity of a target, especially aircraft
IPC: F41G5/08
Filed: 1938-06-17
Abstract: 515,972. Calculating apparatus; speed indicators. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST, BRNO. June 17, 1938, No. 18051. Convention date, June 18, 1937. [Classes 106 (i) and 106 (iii)] Apparatus for determining the velocity of a target such as aircraft comprises a circular sight 10 maintained in a horizontal plane, and a viewing device 9, the sight and device being arranged at opposite ends of a rotatably mounted member 7. The time taken by the target in passing from the centre point of the sight to the edge thereof is measured by a stop watch. The distance s travelled by the target in this time bears the same proportion to the radius of the sight as the distance D of the target bears to the distance between the sight and the viewing device. Therefore s=kD. or if the altitude of the target is h and its angle of elevation a then s=kh/sin a. A cam 8 on member 7 rotates through a disc 23 through a rack 17 and gear 22 an amount equal to log sin a. The height h is determined independently and a ring 25 bearing a logarithmic scale of height is rotated by a knob 27 to bring the scale division for the height under a pointer 28. Ring 25 also carries a logarithmic scale of velocities. The relative motion between ring' 25 and disc 23 is log h-log sin a. If then a distance t on the time scale is read in the reverse direction to this motion the point on the velocity scale opposite thereto corresponds to log h-log sin a-log t which equals log s/t in other words the logarithm of the   velocity. It is stated that by suitable adjustments of the constants the two scales on each member can use the same division marks.
Patent GB-253373-A (GB)
Title: An instrument for the detection of "cultured" pearls and the examination of all kindsof precious stones whether cut or uncut
IPC: G01N33/38
Filed: 1925-07-16
Abstract: 253,373. Clarke, F. E. L. July 16, 1925. Optical apparatus.-For the detection of cultured pearls and the examination of all kinds of precious stones, a beam of light is projected through the gem from a lamp C housed in a casing A, with the aid of an inclined mirror F and a condenser J. The gem is contained in an apertured tray S in a tank P filled with a liquid of the same refractive index as the gem. Examination of a cultured pearl by means of a beam of light from the lamp c reveals the nucleus readily, and permits the colour also to be ascertained. The use of a blue filter glass facilitates examination of the nucleus. Ventilation of the casing is effected by a sloping top B and an aperture D as shown.
Patent GB-1017853-A (GB)
Title: Apparatus for electrostatically flocking adhesive plies with fibres
IPC: H04R1/22
Filed: 1964-05-01
Abstract: 1,017,853. Web coating apparatus. BATTELE-INSTITUT E. V. May 1, 1964 [May 2, 1963], No. 18213/64. Heading D1L. Apparatus for electrostatically flocking, by scattering flock fibres on to passing adhesive plies, comprises an elongated rotating screen drum 1 covered with a sheet metal hood 2 and maintained at a high potential by a suitable source; the drum rotating on a hollow shaft containing sieve-like perforations and providing a constant supply of flock fibres and the hood being of bell shaped section with its edge 4,16 drawn outwardly in an upward direction and rolled in slightly; a grating 3 inserted in the opening in the hood, the hood and grating being connected to the same pole of the high-voltage source as the screening drum, and a base 11, over which the adhesive plies 10 pass, connected to the other pole of the high-voltage source. Preferably the edge portion of the hood extending in the direction of movement of the plies is drawn out considerably further than the other edge portions. The flock fibres are fed to the inside of drum 1 by a worm conveyer 13 in the hollow shaft 12 said worm conveyer being in communication with feed funnels 14 fitted with agitators 15. The grating 3 comprises a metal frame and can be vibrated horizontally. Since the drum, the hood and the grating are all connected to the same potential there is no electric field in the space 6 and the fibres therein are subject only to gravity and centrifugal force so that the amount of fibres dropping through the openings in the screen depends only on the rotary speed and the filling of the drum so that if the degree of filling is kept the same and the speed varied the amount of flock can be determined exactly.