baber/WOPTO huggingface dataset:
Patent GB-1100303-A (GB)
Title: Improvements in or relating to fluid flow control valves
IPC: F16K11/078
Filed: 1965-01-20
Abstract: 1,100,303. Valves. STANDARD SCREW CO. 20 Jan., 1965 [20 Jan., 1964], No. 2610/64. Heading F2V. A mixing valve comprises a valve member which is reciprocable and rotatable in a sleeve member 5. The valve member comprises a cylindrical part 26 having a port 29 in the side wall which leads to a hollow part of member 26 opening into the top of this member. The member 26 is connected to a valve stem 23 which connects the member to a valve part 11a having a closure portion 46 which seats on a resilient seating 48 located in a groove of the sleeve 5. Two inlet ports are provided in the sleeve and when the valve member is raised to abut a stop 41, the member 26 slides into the seating 48 and outlet ports 39 in the sleeve are opened to the hollow part of member 26. With the valve in this position, rotation of the valve member allows the port 29 to register with one or both of the inlets to control the mixture. The sleeve and valve member are mounted as a cartridge in a fixed member 1 having supply pipes and outlet nozzle connected permanently to it.
Patent GB-1531514-A (GB)
Title: Surgical operating tables having germ-free air screen generators
IPC: F24F7/06
Filed: 1976-01-23
Abstract: 1531514 Air screens for surgical operating tables Z DUVLIS 23 Jan 1976 [25 Jan 1975] 02723/76 Addition to 1494907 Heading F4V A surgical operating table 5 is combined with a germ-free air screen generator comprising an air supply head 1 at one end of the table 5 having one or more outlet openings to produce, in use, a germ-free air screen 3 directed along but spaced above the table 5, and having one or more suction openings to produce, in use, a current 12 which flows counter to and extends partially along part at least of the periphery of the screen 3 to prevent the stream(s) of germfree air from drawing in germ-laden air on issuing from the outlet opening(s). Tubes 13 having openings 14 extend along the longitudinal edges of the table 5 and are connected to a source of vacuum or pressure. The head 1 and/or an air extraction head 2 may include openings 17, 21 connected to a source of pressure or vacuum to produce a vertical air curtain. Specification 1,514,759 is referred to.
Patent GB-1453972-A (GB)
Title: Apparatus for cooling sterilized particulate solid material
IPC: F28C3/12
Filed: 1973-01-18
Abstract: 1453972 Separating solids from liquid A P V CO Ltd 2 Jan 1974 [18 Jan 1973] 2739/73 Heading B1D [Also in Division F4] In an apparatus for cooling sterilized particulate solid material, the solid material together with cooling liquid is introduced through inlet 2 and passed by screw 3 along cylindrical chamber 1 where in zone 4 the liquid is separated from the solid material by passing through apertures or slots in the bottom of zone 4. The solid material is discharged via a depressurizing arrangement comprising valves 6, 7 and the liquid is recycled, the liquid being passed through tank 8, pump 9, valves 10 and 11 and heat exchanger 12 where it is cooled by indirect contact with another liquid.
Patent GB-1380343-A (GB)
Title: Coating apparatus control
IPC: H03K17/79
Filed: 1972-01-20
Abstract: 1380343 Automatic control of coating NORDSON CORP 20 Jan 1972 [20 Jan 1971] 2786/72 Heading G3N  A coating system, wherein a conveyer 10 carries cartons 11 past a hot melt adhesive dispensing station 20, is responsive to a sensor 40 providing a plurality of signals as shown, which are fed through an OR-gate 45 to a control circuit 50 comprising a trigger circuit 60 and a delay-duration timer circuit 70. The signal from the OR-gate is fed to an input 61 of the trigger circuit 60 and differentiated in a circuit 63 to provide a pulse signal to an OR- gate 64 which is then held, 'on' by feedback through an AND-gate 65. The signal from the OR-gate 64 is differentiated in a circuit 71 of the timer circuit 70 and switches 'on' a bi-stable circuit 72 which starts a delay timer 73. At the end of the set delay time interval a bi-stable switch 74 is switched 'on' to provide (a) a signal to an amplifier 80 so as to energize a valve 25 whereby the hot adhesive is fed by a pump 23 to the carton 11 as a layer 28 at the time interval appropriate to the speed of the conveyer and the distance D1; (b) a signal through a differentiator 79 to turn 'off' the bi-stable circuit 72; (c) initiate a duration timer 75 and (d) turn 'off' a bi-stable switch 76 through a differentiator 78. At the end of the time interval set in timer 75, representing the length of the adhesive strip applied to the carton 11, the switch 76 is turned 'on' to turn 'off' switch 74 through a differentiator 77, thereby de-energizing valve 25 and, through a differentiator 68, reset gate 65 thereby breaking the 'hold' circuit for gate 64 and so prepare the control circuit 50 to respond to a subsequent signal from the sensor 40. Arrangements are shown for inter-connection of a sequence of timers for the control of a  plurality of coating devices operated at different times in a cycle.
Patent GB-667172-A (GB)
Title: Improvements in shackles for the springs of motor vehicles or the like
IPC: B60G11/12
Filed: 1948-11-12
Abstract: 667,172. Resilient mountings. WRIGHT H. CLAYTON-. Nov. 12, 1949 [Nov. 12, 1948], No. 2939/48. Class 108(iii). In a shackle link for a leaf spring of a motor vehicle comprising two side links or plates 3, 3 and a pin 1 mounted on the links and receiving the eye of the leaf spring betwesn the side links and in which a rubber bush 5 is compressed between each end portion 4 of the pin 1 and a hole in the respective links to prevent rotationof the pin 1 relative to the links, except that permitted by the distortion of the rubber bush 5, each rubber bush is divided :at the centre with the inner ends abutting :and with shackle-link locating collars 10 on the outer ends, which collars, when the bush is compressed by endwise pressure, are raised at each end of the bush between shoulders on the sides of the side links and shoulders bearing against the ends of the rubber bush. In the arrangement shown, the bush is compressed between a washer 7 and an eye 2 of the spring and a registering shoulder 9 formed by a reduced diameter portion at the end of the pin 1. The pin may be keyed to the eye 2 of the spring.
Patent GB-349927-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/52
Filed: 1930-01-28
Abstract: 349,927. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Elder, F. R. ; 1100, Palmer Avenue, Schenectady, New York, U.S.A.) Jan. 28, 1930, No. 2958. Convention date, Jan. 28, 1929. [Class 39 (i).] Vapour-discharge devices are provided with a (cupshaped anode 4, Fig. 1, providing an electrostatically shielded region within which the metal support 5 is secured to the anode, the support 5 being covered by an insulating tube 8 from its join with the anode to its seal 7 through the envelope 1. A glass sleeve 10 fitting closely around the tube 8 protects the seal 7 and extends into the region inside the anode. The anode 4 is of carbon shaped to avoid sharp corners. In a power rectifier, the arrangement prevents arcing to the anode or its supports during the inverse half of the cycle. The cathode may comprise a nickel cylinder 2 coated on one or both sides with alkaline-earth electron-emitting material and also forming a heat-screen around the heater 3. Mercury 18 provides vapour producing positive ions and neutralizing the spacecharge. In a modification, Fig. 2, a directly-heated cathode comprises a crimped nickel ribbon 15 formed into a helix, flanged metal shields 17 being carried by one of the leads 14 and the ends of the ribbon 15 being formed into sleeves 16 welded to the leads 14. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the termination of the sleeve 10 above the anode and the construction of the ribbon cathode of Fig. 2 with the crimpings at an angle to the ribbon depending on the pitch of the helix and so formed that, in each trough, heat from one side is reflected back from the other. The crimpings may be longitudinal of the ribbon and the ribbon may be formed into a horizontal helix or spiral. This subject-matter does not appear in the Specification as accepted.
Patent GB-930408-A (GB)
Title: Apparatus for separating two superimposed sheets
IPC: G03B27/24
Filed: 1961-01-25
Abstract: 930,408. Sheet delivery apparatus. CHEMISCHE FABRIEK L: VAN DER GRINTEN N.V. Jan. 25, 1961 [Feb. 2, 1960], No. 2991/61.  Class 100 (1).  In photoprinting or other apparatus wherein two superimposed sheets are delivered from the apparatus, the sheets are separated by friction by feeding them between a roller and a belt, or between two belts, one of these members being connected through a slip clutch to a drive means which tends to drive the member in a direction opposing the sheet feed. As shown, sets of two superimposed sheets, each comprising a sheet of light-sensitive material and an original drawing &c., are fed around a rotatable exposure cylinder 1 by a system of narrow juxtaposed endless belts 2 mounted on rollers 4-8. Air is sucked into the apparatus between the belts so that the sheets are retained on the belts by suction. Where the original is loosely attached to the light-sensitive sheet, it falls away on to a tray 9, and the other sheet is peeled from the belts by strippers 10 and fed between a roller 11 and endless belts 12. The conveyer roller 11, which may be a suction roller, is positively driven in a counterclockwise direction, and the belts 12 tend to be driven in the opposing direction by a roller 14 which is rotatably mounted on a shaft 19 between a pair of friction discs. The discs are urged by a spring to grip the sides of the roller 14 and drive it in a counterclockwise direction. The belts 12 are also mounted on a roller 13 carried in a bracket 16 which is urged upwardly by a spring 15 about a pivot 18. The spring 15 and the spring of the slip clutch on the shaft 19 are so adjusted, and the materials of the belts 12 and the surface of the roller 11 are so selected, that with no sheet between the roller and belts the belts are driven by friction in the same direction as the roller 11, and the clutch slips. When a single sheet passes between the roller and belts, the friction between the sheet and the belts is not sufficient to overcome the clutch, and the belts are driven in the reverse direction. Where the original sheet is still attached to the lightsensitive sheet, it is rubbed back by the belts 12, and falls on the tray. The belts 12 may be replaced by a friction roller driven through a slip clutch, and the conveyer roller 11 may be replaced by endless belts.
Patent GB-275428-A (GB)
Title: Improvements in chain grate and like furnaces
IPC: F23H11/04
Filed: 1926-02-03
Abstract: 275,428. Bennis, A. W. Feb. 3, 1926. Firebars and grates. - In a chain grate of the kind in which the firebars are carried by transverse racks supported on the driving chains, the upper part of the racks are T-shape in cross section adapted to engage with the firebars which are threaded thereon and the rack or a portion therof is formed in two parts one of which may be moved relatively to the other to facilitate the removal of the firebars. As shown in Fig. 1, the links a of the driving chains have formed integral or detachably secured to them carrier bars c to which are bolted T-headed racks d engaging with firebars e and formed in two parts f, g secured to the carrier bar c by bolts h. The part g is provided with a recess i engaging with a pivotal projection j on the part f which may be rotated by loosening the bolts h to enable the firebars to be removed. Alternatively the carrier bar c may be extended upwardly and formed with part of a T- head instead of providing the member g. Fig. 3 shows a modification in which one or more intermediate portions of the carrier bar are provided with part of aT-head to coact with one or more short movable sections g<1>, secured by bolts n. The bars on the movable section are first removed to allow the remaining bars to be slid endwise and removed at the section g<1>.
Patent GB-1011941-A (GB)
Title: Apparatus for the comparison of luminous flux
IPC: G02B21/00
Filed: 1964-01-24
Abstract: 1,011,941. Photo-meters. COMPAGNIE DES COMPTEURS. Jan. 24, 1964 [Feb. 14, 1963], No. 3137/64. Headings G1A and G1P. Apparatus for measuring the optical density of a sample by comparing its light transmission properties with that of a movable wedge of variable density comprises a light source 1 which generates two oppositely directed beams which are alternately obscured by the rotating apertured drum 2. One beam, the measuring beam, is directed by optical elements bearing unprimed reference numbers through the measuring wedge 7, the sample 9 to a photo-cell 15, while the other beam is directed through similar elements bearing primed reference numbers through a standard wedge 7<SP>1</SP> to the same photo-cell, the measuring wedge being adjusted, possibly automatically, to give constant illumination of the photo-cell in which condition the position of the measuring wedge is a measure of the opacity of the sample. In the measuring path an image of the source is formed by the lens 5 on the entry pupil of the illumination objective 8, the size and position of the illumination of the sample being controlled by the size and position of the diaphragm 6. Similarly the lens 13 forms an image of the exit pupil of the analysis objective on the sensitive surface of the photo-cell 15. The analysis area position and size is adjustable by diaphragm 12 and is normally adjusted to be concentric but of smaller size than the illuminated area of the sample. With objectives 8 and 10 of high focal length and small aperture a collector system 25 is normally made up to enclose the sample and to be attached to the two objectives. To assist setting up, a microscope, 18 and 16, may be used to view the diaphragm aperture 12 to ensure that it is set smaller than the sample illumination area. Alternatively by displacement of the mirror 11 the sample may be viewed using the microscope consisting of eyepiece 16 and objective 10, the area of illumination may be measured using the scale 26. When using the observation device 20 an auxilliary observation source 21 is used which illuminates the sample with light of a colour to which the photo-cell is less sensitive than the eye, the auxilliary source may be used during measurement since the light is not modulated and does not therefore interfere with the measurement. A wedge 7<SP>1</SP> is included in the reference path so that the range of measurement of the device may be preset to any desired value. The light source 1 and rotating drum 2 are movable vertically in order to adjust the relative phases of the two light beams so that the illumination at the photo-cell 15 is continuous but without overlap of beams.
Patent GB-705004-A (GB)
Title: Improvements in or relating to the etching of metal objects
IPC: C23F1/16
Filed: 1952-02-06
Abstract: 705,004. Etching. DOW CHEMICAL CO. Feb. 6, 1952 [Feb. 12, 1951], No. 3180/52. Class 100 (2) An etching bath for etching an acid-soluble metal, eg. in making a printing plate, comprises a mixture of a saturated aliphatic acid having from 5 to 26 carbon atoms in the molecule and an aqueous solution containing nitric acid. The aqueous solution may contain from 3 to 50 per cent of nitric acid by weight and the amount of the aliphatic acid is from 0.05 to 4 times that of the nitric acid by weight. The inclusion of the aliphatic acid in the etching solution produces an acid resistant film that exerts a controlling effect on the dissolving action of the nitric acid by substantially reducing the action of the nitric acid in a lateral direction whilst not adversely affecting the depth of the etch. The parts of the plate to be left unaffected are coated in the usual way with a resist and the etching solution is splashed on the plate or caused to impinge thereon by an atomizing nozzle. A concentration of from 5 per cent to 10 per cent of nitric acid is preferred. Examples of suitable saturated aliphatic acids given are valeric acid, caprylic acid, stearic acid, palmitic acid, lauric acid, and cerotic acid. The aliphatic acids used are those which are relatively insoluble and are normally liquid or become liquid at moderately elevated temperatures.
Patent GB-1176946-A (GB)
Title: Pressure Monitoring Device, e.g. for a Pneumatic Tyre
Inventor: MIRSKY ALEXANDER
IPC: B60C23/04
Filed: 1967-01-20
Abstract: 1,176,946. Tyre pressure indicator. A. MIRSKY. 14 Sept., 1967 [20 Jan., 1967], No. 3225/67. Heading B7C. ' A device for monitoring the pressure in a rotating pneumatic tyre comprises a pressureresponsive switch and electrical circuit associated therewith for generating a signal and a valve arrangement for automatically setting the pressure-responding member of the switch in relation to the actual pressure in the tyre. Fig. 1 shows a device for use with dual mounted tyres. The device comprises a casing 1, which is mounted on the wheel hub, and which has two inlets 6 and two outlets 7, each inlet comprising two tyre valves 9, 10 and a spacing sleeve 11 provided with slots (not shown). Valve 9 controls the passage of air from inlet 6 to a tyre via the slots (not shown), tube 13, and outlet 7 and when sufficiently depressed operates valve 10 BO as to connect tube 13 and bore 14. Bellows 16, 17 separated by a disc 18 are located between bores 14, 15 in the inlet and outlet respectively to provide a pressure-reference chamber 19 and tyre pressure-sensitive chamber 20. Disc 18, see Fig. 3, is provided with an extension 21 which is movable between two contacts 22, 23. On inflating a tyre by supplying air via inlet 6 and outlet 7, valve 10 is opened and the pressures in chambers 19, 20 are equilibrated with that in the tyre. When inflation ceases, valves 9 and 10 close. If, in use, the tyre pressure alters, the pressure in chamber 20 will alter correspondingly and will move disc 18 and hence extension 21 towards one of the contacts 22, 23. If the extension touches one of the contacts 22, 23, a circuit is energized to generate a signal which is transmitted to a receiver. The reference pressure in chamber 19 may be reset to correspond with the pressure in the tyre at any time by depressing the stem of valve 9. A visual indication of the tyre pressure may be provided by arranging a platform 36 on disc 18 carrying three colours corresponding to normal, high, and low pressures, the colours being visible through a slit. in a screen 37 and through a window 34 in the cover of the. casing. To improve the operation of reference chamber 19,. bore 14 may communicate with an additional volume 38..
Patent GB-1047822-A (GB)
Title: Improvements in or relating to urologic compositions containing 5-nitro-furfurylidene derivatives
IPC: A61K31/415
Filed: 1964-01-24
Abstract: Pharmaceutical compositions, for oral treatment of urinary tract infections, comprise a dosage unit form containing a pharmaceutical carrier and 1-(5-nitrofurfurylideneamino)-2-imidazolidinone.  The said form may be a compressed tablet or a gelatin capsule, the former containing conventional tablet excipients.
Patent GB-564254-A (GB)
Title: Improvements in or relating to motion picture cameras of the magazine type
IPC: G03B19/18
Filed: 1942-03-11
Abstract: 564,254. Kinematograph cameras. KODAK, Ltd., and PORCH, E. W. March 11, 1942, No. 3243. [Class 97 (i)] In a camera having a movable carrier by which a film magazine may be inserted into the camera, electrical contacts within the camera are moved into engagement with a contact carried by the magazine as the carrier is moved fully in position in the camera ; the contacts may be in the circuit of an exposure counting device. As shown in Fig. 1, the carrier comprises walls 17, 18, 19 carried by a hinged door 3 and forming a trough to receive a magazine 5. When the carrier is fully in position in the camera, strip contacts 22, 23, secured to an insulating block 31 fixed in the camera, have been moved into an opening 28 in the carrier wall 17, to engage with a contact sector 20, Fig. 5, on the spindle of a film-driven sprocket within the magazine. Movement of the strips 22, 23 is effected by engagement of a slide member 38 with sloping parts 45 of the strips, the member 38' being engaged by the door 3, just before its complete closure, so as to be moved against the action of a compressed spring 42. Leads 24 from the strips 22, 23 may connect to a terminal block 25 connected by a cable 26 to a plug socket 27 connecting to a remote counter.
Patent GB-102550-A (GB)
Title: Improvements in or relating to Valves.
Inventor: SHANKS JOHN
IPC: F16K15/18
Filed: 1916-03-04
Abstract: 102,550. Shanks, J., and Gallagher, W. March 4, 1916. Sea-cocks; storm valves. -In a valve device for ships' closets such as is described in Specification 16049/15, [Class 135, Valves &c.], and having a screw-down stop valve 1 and a non-return valve 2 in superposed relationship, the screw - down valve is arranged to be operated by a member which is rotatable but immovable endways. This may be an internally screwed sleeve 6 mounted, as shown, to rotate but not reciprocate, and to engage the screwed valve stem 5; or it may be an externally-screwed spindle similarly mounted.
Patent GB-667819-A (GB)
Title: Improvements in or relating to tools for upsetting hollow tubular rivets
IPC: B25B27/00
Filed: 1950-02-09
Abstract: 667,819. Blind riveting. GOODRICH CO., B. F. Feb. 9, 1950 [June 1, 1949], No. 3337/50. Class 43. A hand-operated tool for setting internally threaded, hollow rivets 19 comprises a body 10 having a threaded bore 11 which receives a screw structure 15, an extension 17 of which passes through an anvil 23 and has a screw -threaded rivet-engaging end 18, said body and anvil being mounted for relative rotation in thrust-transmitting relation, whilst relative axial movement of the body and screw structure, brought about by relative rotation, sets the rivet. The body 10, anvil 23, and an annular thrust bearing 27 mounted between them are held in position by a sleeve 28, the ends of which are spun over flanges 13, 25 of the body and anvil respectively. In use the head 16 of the screw structure is held stationary while the body 10 is rotated to extend the rod end 18, so that a rivet can be screwed thereon until its head engages the anvil 23; the rivet shank is then inserted in the workpiece, and a hexagonal L-shaped bar wrench 21 is inserted in a hexagonal socket 20 in the head 16 of the screw structure. The wrench 21 is used to hold the latter from rotating while the body 10 is turned to set the rivet by means of an openended wrench 50 which is engaged with the polygonal outer surface 12 of the body 10. The wrench 50 is then used to hold the body 10 from turning while the wrench 21 is rotated to withdraw the rod from the rivet. Instead of having a socket 20 engaged by the wrench 21, the head 16 may have a polygonal outer surface engaged by an open-ended wrench, or may have capstan holes engaged by a straight capstan bar wrench. In a modification, Fig. 4 (not shown), the screw structure is axially bored to receive a removable draw rod having a head which fits tightly in a hexagonal socket in the head of the screw structure so that relative rotation is prevented, and the bore of the anvil is adapted to receive a removable bushing, so that by varying the rod and bushing rivets of different sizes may be set by the same tool.