baber/WOPTO huggingface dataset:
Patent GB-988494-A (GB)
Title: The method of installing a crankcase ventilating system
IPC: F01M13/02
Filed: 1963-10-21
Abstract: 988,494. Crankcase ventilation. MIDAS INTERNATIONAL CORPORATION. Oct. 21, 1963 [Aug. 13, 1962], No. 41452/63. Heading FIB. [Also in Division B3] A method of installing a crank case ventilating system in an internal combustion engine comprises delivering high pressure air into the inlet manifold, and cutting an opening in the intake wall while maintaining the pressure, so that the chips are blown out. The 6-cylinder I.C. engine 11, Figs. 1 and 2, comprises a rocker arm cover 12 in communication with crankcase 13, an oil filler opening 14, a road draft tube 15, intake manifold 16, carburettor 17, and air cleaner 18. Gas is drawn out of cover 12 through an adaptor 21, a conduit 19, and a flow control valve 22, Fig. 6, and is drawn into manifold 16. Air is supplied to the crank case from air cleaner 18, through a conduit 23. Valve 22 comprises a tubular body 25, Fig. 6, screwed into manifold 16, and a spring urged valve portion 28. A hole is drilled and tapped in the manifold for reception of the body 25 by first removing air cleaner 18 and fitting a special fitting 32, Fig. 3, over the carburettor 17, the latter being opened to full throttle position. Air is admitted through a hose 36, the pressure is maintained at 45 pounds per square inch and a drill bit, Fig. 7, is used to drill the hole. A hole is also cut in cover 12 for conduit 23, and during this operation tube 15 is plugged as at 44, Fig. 1, and a temporary fixture 45, Fig. 14, carrying an air hose 36, is connected to oil filler opening 14. Air is admitted through the fixture and a hole is drilled by a pilot drill 52, Fig. 12, followed by a trepanning tool 46, the latter being enclosed by a sleeve 49, having a depth determining flange 51. A grommet 54, Fig. 4, is inserted in the hole for connection to conduit 23.
Patent GB-1203947-A (GB)
Title: Air sealing rewind construction for roll-type filters
Inventor: BENNETT ROBERT L
IPC: B01D46/18
Filed: 1967-09-12
Abstract: 1,203,947. Air filter. AMERICAN AIR FILTER CO. Inc. 12 Sept., 1967, No. 41538/ 67. Heading B1T. The lower, take-up end of a moving band air filter comprises a roll 26 on to which used medium (24) is wound, the end spindles 56 of roll 26 sliding in a pair of channels 58, to accommodate the accumulating medium by allowing the roll to slide back, against gravity and the action of springs 60. The medium 24 is backed and moved by an endless openwork belt 16, and roll 26 is rotated by frictional engagement with belt 16 where it passes round lower roller 20. The medium on roll 26 engages a sealing edge 54 along one line and leaves belt 16 along another, and channels 58 extend normally to the plane of those two lines. The upstream run of belt 16, crossing the air passage, is backed by wires 42. The edges of medium 24 engage in channels 44.
Patent GB-1328376-A (GB)
Title: X-ray apparatus
IPC: H05G1/44
Filed: 1970-09-01
Abstract: 1328376 X-ray exposure control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 Sept 1970 [2 Sept 1969] 41835/70 Heading G1A X-ray exposure control apparatus includes an ionisation chamber 20 sensing radiation passing through a body 19 being radiographed, the detector output being used both in a dose measurement channel 8, 13 by which the attainment of a predetermined dose terminates the exposure by opening switch 17 and a dose-rate measurement channel 8-12 by which the length of the exposure is also adjusted in dependence on the absorption characteristics of body 19 (i.e. fat or thin patient etc) by switching in one of a number of tappings 5-7 to alter the X-ray tube high voltage or by feedback to the integrator device 8 in which the switch-off dose is pre-set. Since the channel 8-13 includes the integrator 8, channel 8-12 includes a differentiator 9. Alternatively, the dose rate dependent detector output may feed directly to comparator circuit 10. This compares the rate with pre-settable upper and lower threshold values. These levels are pre-set in comparator 10 for a number of different organs that may be required to be radiographed, a number of voltage dividers being provided for this purpose. When the measurement is above, between or below these levels, contacts 5, 6 or 7 respectively, are used in the tube supply circuit. As an alternative, the tappings on the autotransformer 4 may be pre-set instead of the levels in 10. A thyristor may replace switches 5-7. The fact that the measurement is above or below threshold values may be indicated optically or acoustically. Adjustment of the voltage supply may be in steps.
Patent GB-947359-A (GB)
Title: Indicating means for phoropters
Inventor: PIEPENBRINK WINFRED
IPC: A61B3/028
Filed: 1961-11-23
Abstract: 947,359. Sight-testing apparatus. R. RODENSTOCK, [trading as OPTISCHE WERKE G. RODENSTOCK]. Nov. 23, 1961, No. 41961/61. Heading G2J. In a phoropter comprising two lens carrying discs, the powers of the lenses carried by disc 2 differ by longer steps (e.g. 3D) than the powers of the lenses in disc 1, each lens of disc 2 has associated therewith a number of calibration marks 211, 212 .... equal to the number of lenses in the other disc 1, and each lens of disc 1 has associated therewith an aperture 121, 122 .... which is so positioned that only that one of the calibration marks associated with a lens on disc 2 is visible which gives the combined power of this lens with the lens on disc 1 that is coincident therewith. This mark will be visible in an aperture of the phoropter housing (not shown).
Patent GB-965237-A (GB)
Title: Improvements in or relating to telephone ringing systems
IPC: H03B5/12
Filed: 1960-12-07
Abstract: 965,237. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. Dec. 7, 1960 [Dec. 28, 1959], No. 42100/60. Heading H4K. In a subscriber's line circuit a source of potential maintains a normal charge on the condenser in series with the bell in a sub-set, switching means being connected in shunt with the source 20 as to change the value of the charge and so actuate the bell in response to a ringing signal. The invention is described with reference to a time division multiplex switching system of the type disclosed in Specification 844,735. Talking battery 123 (40 v.) in the exchange normally maintains sub-set condenser 111 charged, while a switching transistor 128 is normally cut-off due to a positive potential applied to its base by battery 134 (1.5 v.). The ringing supply 116 comprises a 3 v. battery 117, the current from which is interrupted twenty times per second by interrupter 118, the length of the signal, i.e. two seconds " on," four seconds " off," being controlled by interrupter 119. Thus when a ringing signal is applied to subscriber 110's line circuit, the base of transistor 128 is driven negative twenty times per second and hence it conducts a similar number of times and in so doing it applies a 45 v. positive source 135 to capacitor 111. The current due to the 90 v. change of potential on capacitor 111 thus causes bell 112 to ring. When the subscriber replies, the resultant steady D.C. flowing in his line circuit produces a negative potential at point 136, i.e. base of transistor 133, and the latter conducts, connecting the primary winding of line transformer 127, and hence the ringing signals, to ground. A second embodiment is described with reference to Fig. 2 (not shown) wherein transistor 133 is replaced by a polarized relay in series with resistor 138 (Fig. 1), source 135 is dispensed with and source 123 is increased in potential to compensate therefor.
Patent GB-1146539-A (GB)
Title: Laminated glass
Inventor: MARKLOW RAYMOND JOSEPH
IPC: B32B17/10
Filed: 1966-09-21
Abstract: 1,146,539. Polyurethane bonded glass laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 30 Aug., 1967 [21 Sept., 1966], No. 42204/66. Heading B5N. A process for the manufacture of laminated glass comprises introducing a liquid mixture of 4: 4<SP>1</SP>-diisocyanatediphenyl methane and a hydroxyl-ended polymer between two sheets of glass and allowing the mixture to react to provide a solid interlayer. The polymer may be a polyester, a polyether or a polyesteramide and may be linear or slightly branched. Chain extenders e.g. low molecular weight polyols, aminoalcohols or polyamides and catalysts may be present in the mixtures. In a modification of the process, the mixture may comprise an isocyanate-ended polyurethane made by reacting the diisocyanate and polymer, together with a polyhydroxy material, aminoalcohol or polyamine.
Patent GB-1075595-A (GB)
Title: Tandem axle drive mechanism
IPC: B60K17/36
Filed: 1965-10-05
Abstract: 1,075,595. Motor vehicle driving gear. ROCKWELL-STANDARD CORPORATION. Oct. 5, 1965 [Oct. 5, 1964], No. 42333/65. Heading B7H. [Also in Division F2] A tandem drive axle assembly for motor vehicles comprises forward and rearward transversely extending drive axle units 12, 14, the forward unit 12 having a power input shaft assembly mounted on its forward portion, a rearwardly projecting pinion shaft and an interaxle differential unit mounted on its rearward portion. A main drive shaft 32 is connected through a universal joint 33 and drive flange 34 to a relatively short shaft 36 extending into an auxiliary housing 38 containing a two-speed planetary gear set 40, the shaft 36 having splines 50 meshing with internal splines 52 of a ring gear 54 having teeth 56 in constant mesh with planetary pinions 60 rotatively supported on pins 62 fixed in a radial flange 70 of a shaft 72 coaxial with shaft 36, the other ends of the pins extending into apertures of a radial flange 76 provided with a hub 78 having teeth 80 and forming one element of a Maybach type clutch which has an axially shiftable collar 86 to mesh with the teeth 80 or with teeth 90 of a clutch ring 92 attached to the housing 38. An interaxle differential mechanism 121 is positioned within an auxiliary housing 114 and a coaxial shaft section 106 connected to shaft 72 extends into the housing, ending in a bell shape to comprise one half 118 of the differential cage 120 of mechanism 121 which includes a spider 125 rotatively supporting bevel gear pinions 128 in constant mesh with opposite side gears 130, 132. Gear 130 is splined to a spur gear 136 in constant mesh with a similar gear 146 attached to a shaft 148 carrying a bevel pinion 150 which meshes with a ring gear 152 to form the final axle drive of the forward axle. The opposite side gear 132 is splined to a shaft 154 which forms a drive connection to the rear drive axle unit 14. If wheels on one or both axles lose traction no driving torque will be transmitted from the axle which has lost traction and for this reason the mechanism 121 is provided with a lockout clutch 162 comprising a ring 164 splined to the hub of spur gear 136 and having peripheral teeth 166 engageable by the teeth of a shift collar 168 which is selectively engageable with teeth 170 on the outside of differential cage half 122 to prevent differential action between shafts 148 and 154. The tandem axle assembly may also be single speed or three or four speed. The clutch shift mechanism may be powered by fluid pressure or electric motors.
Patent GB-1165228-A (GB)
Title: Process for production of Imitation Leather
IPC: D04H1/64
Filed: 1967-09-19
Abstract: 1,165,228. Coated fibre webs. TOYO RAYON K.K. 19 Sept., 1967 [19 Sept., 1966; 4 March, 1967], No. 42678/67. Heading B2E. Imitation leathers are prepared by impregnating a fibre web with binder solution, coating one surface of the web with a solution of a synthetic resin, which solution has a viscosity higher than that of the binder solution, before the binder is coagulated, and then coagulating the binder and the synthetic resin simultaneously. The fibre web may be of cotton, flax, silk, wool, rayon, a polyamide, a polyester, polyacrylonitrile and polyolefin used either singly or in combination. These fibres may be modified. by composite-spinning, copolymerisation and grafting. The fibre length is preferably 10-100 mm. The web may be needle-punched or set by compression with a hot roll. The binder may be thermoplastic resins such as polyamides, polyesters, polyvinyl chloride, polyacrylonitrile and polyurethane, or combinations of two or more of these. The viscosity of the binder solution may be 20 to 10,000 poises. The binder may contain a filler such a wood powder and calcium carbonate, a pigment such as carbon black, an anti-foaming agent or an anti-oxidant. Then the solution may be pressed into the interior of the web by using a squeezing device such as a screen and mangle. The resin of the surface layer is then applied by reverse roll or knife coater. The coagulation of the binder and the surface layer may then be effected by extracting the solvent with a liquid such as water which is compatible with the solvent or by evaporating the solvent. A top coat of a nitrocellulose lacquer may be applied by spraying, coating or printing.
Patent GB-1528084-A (GB)
Title: Photographic objective
IPC: G02B7/02
Filed: 1976-10-14
Abstract: 1528084 Lens mounts FRANKE & HEIDECKE GmbH [trading as ROLLEI-WERKE FRANKE & HEIDECKE] 14 Oct 1976 [26 Nov 1975] 42747/76 Heading G2J A lens system utilizing at least two lenses 3, 4 comprises a body 1 having contact surfaces 13, 14 within the body so that the two external surfaces 24, 27 of lens 3, 4 are urged into contact with said surfaces by means of spring washer 8 between said lens. Preferably one contact surface comprises spacer 11, held in place against shoulder 12 by means of front lens 2 and conventional fixing ring 10. Spring washer 8 may be a circular plate having at least three spring tongues projecting therefrom or a corrugated washer having at least three corrugations. A shim 9 may additionally be provided between the rear of one lens and the washer.
Patent GB-1260498-A (GB)
Title: Apparatus for use in forming webs
IPC: D21H23/00
Filed: 1969-09-12
Abstract: 1,260,498. Papermaking. KONINKLIJKE PAPIERFABRIEKEN VAN GELDER ZONEN N.V. 12 Sept., 1969 [13 Sept., 1968], No. 43041/70. Divided out of 1,260,497. Heading D2A. Apparatus for forming paper includes an endless porous carrier 1, movable over rollers 2, 3, 4, 5; means 6 for supplying a suspension of loose fibres to the carrier; one or more suction devices 7; one or more tanks 13 for containing a binder dispersion; one or more washing devices 14, for washing the carrier; a roller 12, having a diameter of 10-60cm disposed within the tank, the carrier being arranged to pass under tension around this roller; and a belt 9 arranged between the carrier and the roller to cover the carrier during passage through the tank. As shown, the belt may be endless, and be equipped with washing devices 15. Suction devices 8 may be provided after the impregnation. The rising and downwardly inclined parts of the carrier/ belt preferably make an acute angle with each other. This apparatus is suitable for carrying out the method of Specification 1,260,497.
Patent GB-967774-A (GB)
Title: Improvements in or relating to driving devices
IPC: F16C1/14
Filed: 1962-11-16
Abstract: 967,774. Screw-and-nut gears; Bowden mechanisms; nuts. H. T. GOLDE G.m.b.H., H. GOLDE, and M. LOFFLER, [trading as H. T. GOLDE G.m.b.H. & CO. KOM.-GES.]. Nov. 16, 1962 [Nov. 16, 1961; June 12, 1962], No. 43544/62. Headings F2H, F2K and F2Q. A driving or coupling device, e.g. for operating a sliding roof or window in a vehicle, comprises an elongated member having longitudinally spaced or helical projections, and a second member of sheet material, part of which is wrapped round the elongated member so that the projections on the latter engage in holes in the second member. The two members may be rigidly joined together for a common axial movement, or, when a helical projection is used, may form a screw-and-nut gear. The elongated member may be a rack, or a spindle or cable having annular ribs or a helical rib. The second member, of sheet metal or plastics material, is attached to a window frame or other movable piece. Fig. 1 shows a cable, having a flexible core 10 with a helical rib 11 housed in a conduit 9, which may be flexible, with a longitudinal slot 8 through which the second member 1 projects. The member 1, shown developed in Fig. 3, is bent round the cable so that the inter-slot webs 4 rest against the core 10, the flange portions 5 and 5<SP>1</SP> being joined in face-to-face contact, e.g. by welding, and being fixed in a slot through a movable piece 14. The flange end portions, beyond cuts 15, may be turned outwards from each other. The flange portions 45b and 46b, Fig. 9, of the second member may be bent out to lie in a common plane, and bolted or otherwise fixed to the face of a movable piece, not shown. In Figs. 5-7, not shown, the slots in the second member are formed in two axially spaced groups.
Patent GB-968117-A (GB)
Title: Improvements in or relating to mine roof supports
Inventor: TOWN FRANK
IPC: E21D23/00
Filed: 1961-12-06
Abstract: 968,117. Hydraulic apparatus. W. E. & F. DOBSON Ltd. Nov. 30, 1962 [Dec. 6, 1961], No. 43631/61. Heading F1P. [Also in Division E1] In a mine roof support having hydraulic pit props incorporating support units 1, 2 interconnected by hydraulic means to obtain advance of each unit 1, 2 in turn when released from the roof and while the other unit 2, 1 is supporting the roof, embodying a horizontal cylinder-and-ram device of the push-and-pull type in each unit 1, 2 and a direct push-pull connection between the operative members of the two devices the desired sequence of movements is obtained by means of an hydraulic circuit including four control valves 22, 23, 24 and 25, operated at suitable times and interconnected through a block 26. The block 26 is connected to a fluid source by lines F, R and to another similar support by lines F1, R1, and has lines C, C1 to valve 24, C2, C3 to valve 23, and C, C4 to both valves 23 and 25. Valves 22 and 23 are connected to operate props 4, 5 and 7, 8, respectively, whereas valves 24, 25 are connected to operate cylinder 11 with the ram 12 of the unit 1 and cylinder 15 with the ram 16 of the unit 2, respectively.
Patent GB-1465596-A (GB)
Title: Article exchange apparatus
IPC: B25J15/08
Filed: 1974-10-09
Abstract: 1465596 Grippers INTERNATIONAL BUSINESS MACHINES CORP 9 Oct 1974 [30 Nov 1973] 43658/74 Heading B8H The apparatus shown in Fig. 1 comprises a pair of grippers 12, 14 which co-operate to transfer an article 10 from one to the other, the grippers 12, 14 being formed from a resilient material such as plastics such that their fingers 26, Fig. 2, are spring-loaded, the fingers being each provided with an inner flat surface 28 at the tip so that when a grapple is holding an article there is an open space formed between each of the surfaces 28 and the article. When the grapple 12 is moved towards the grapple 14 the fingers of the latter enter the said open spaces formed between the fingers of the grapple 12 and the article and the latter-mentioned fingers are forced away from the article as the fingers of grapple 14 engage the article, and on subsequent retraction of the grapple 14 the article 10 is held thereby. Fig. 3 (not shown), discloses a grapple in which the tips (36) are formed by respective straight portions which depart from the curvature of the respective fingers (32). In the embodiment of Fig. 6 (not shown) each of the grapples (62, 64) has rigid jaws which are biased by respective springs (65, 63) to a closing position, this apparatus being suitable for handling a rectangular article.
Patent GB-1490745-A (GB)
Title: Automatic chemical testing apparatus
IPC: G06F19/00
Filed: 1974-10-14
Abstract: 1490745 Automatic chemical testing apparatus HYCEL Inc 14 Oct 1974 [15 Oct 1973] 44387/74 Heading G1A An automatic chemical testing apparatus comprises vessel holding chambers 22-1 to 22-16 each in juxtaposition with a detector 64-1 to  64-16, which has an associated sensor for providing a vessel presence signal and provides a signal dependent on the energy passing through the chamber and control means 66 responsive to and for processing each energy signal and providing a signal dependent on the amount of substance being measured in the vessel. Table 20 has twenty four rectangular holes 22 for rectangular vessels. Holes 22-1 to 22-15 are for particular tests, 22- 16 for various tests and the remainder for incubation. Similar blank hole 58 is beneath the surface. Table 20 has a heater to maintain vessel temperature. Xenon lamp 60 illuminates the chambers through optical paths or fibres 62-1 to 62-17. There may be an interference filter in front of each detector. Control means 66 is a programmable digital microcomputer with readonly and random access memories. Circuit 72, responsive to analogue signals from the detectors finds on command from circuit 66 the logarithm of the ratio of their values to the value from detector 64-17 and converts to digital. Channel interrupt circuit 94 provides a signal when a vessel is being inserted and circuit 74 a presence signal. Control means 66 responds to each of selected detector signals a given time after vessel insertion and to each of the remaining detector signals at first and second times after insertion. For signals from detector 64-16 said first and second times are adjustable by timers 86 and 88. Said given time is measured independently for each chamber. Responsive to signals from control means 66 are a display 104, indicating the amount of substance detected in any one vessel, and, showing which vessel it is in, an indicator comprising buttons, 96, one for each chamber, each being on, off or flashing in response to signals from control means 66, to which each sends a signal when it is pressed. Mode selecting means 76, 78, 80 are coupled to control means 66 which contains means for storing separately each detector signal for each of these modes. A message display responds to another signal from the control means which sends yet another signal to make the appropriate button flash. The operation of the apparatus is described in detail using flow diagrams Figs. 3-9 (not shown).
Patent GB-949335-A (GB)
Title: A vibratory capacitor
Inventor: YOUNG GEORGE VIRGIL
Filed: 1961-09-20
Abstract: 949,335. Variable capacitors. ENDEVCO CORPORATION. Sept. 20, 1961, No. 44615/62. Divided out of 949,334. Heading H1M. A vibratory capacitor suitable for use in the amplifying arrangement described in Specification 949,334 comprises a vacuum enclosure 21, e.g. of glass having a deep reentrant portion 22. The outer wall 21 is sealed to a metal cylinder 23 to which is attached a spacer ring 24, to which in turn is attached an inner cylinder 25. The latter supports a stationary capacitor plate 26. There is similarly attached to the re-entrant portion 22 a metal cylinder 27 supporting a movable capacitor plate 28. The re-entrant portion 22 constitutes a resonant member having a wavelength of a quarter wave or a multiple thereof; the Q of the arrangement is increased by bonding the envelope with epoxy cement, to a mounting plate 29 which is secured by means of screws to a mass 30. The plate 29 and mass 30 may be formed of soft iron to act as a magnetic shield. The movable capacitor plate 28 is driven by means of a magnetostrictive element comprising a nickel cylinder 32 having a longitudinal slot 33 to reduce eddy currents; it is bonded to the inner surface of the re-entrant portion 22 with epoxy resin. Immediately within the cylinder 33 is an energizing coil 34 wound on a soft iron core 35; this is attached to an aluminium disc 36 by which it is mounted on the mass 30. Electrical connection to the inner capacitor plate 28 is by means of a flexible metal strap 40. The vibratory capacitor is mounted in a temperaturecontrolled enclosure for constancy of frequency. The Specification also refers to alternative driving means, e.g. magnetic attraction or piezo-electric units.