baber/WOPTO huggingface dataset:
Patent GB-530342-A (GB)
Title: Improvements in or relating to roller bearings, particularly for aircraft shock absorbers
IPC: F16C27/04
Filed: 1939-06-21
Abstract: 530,342. Roller bearings. RIBBESFORD CO., Ltd., and ONIONS. J. H. June 21, 1939, No. 18118. [Class 12 (i)] A roller bearing particularly suitable for use in the elbow joints of aircraft shock absorber linkages consists of a number of rollers formed by helically wound wire coils mounted in a tubular race member having means at its ends for retaining the rollers in position. Fig. 1 shows a tubular member 10 mounted on a shaft 12 and formed with curved ends 17 engaging the reduced ends 16 of the wire coil rollers 11. The coils are preferably wound alternately clockwise and anti-clockwise and may be either arranged contiguously or spaced by a cage. The outer surfaces of the rollers are ground to form substantially continuous cylindrical surfaces after being hardened and tempered. The member 10 may alternatively be made of a diameter to fit the outer bearing member 13 and have inwardly turned ends to engage the ends of the rollers. Fig. 4 shows rollers composed of helically wound square-sectioned wire 21 fitted at their ends with pins 20 engaging annular grooves 19 in the flanged ends of the tubular member 10. The outer race is formed by a tubular member 22 having inwardly directed flanges 23 engaging the ends of the rollers. The member 22 is split obliquely at 24 to facilitate assembly. In another construction which may be packed with grease the rollers are enclosed between inner and outer races having abutting edges.
Patent GB-563433-A (GB)
Title: Improvements in or relating to air brakes for aircraft
IPC: B64C9/32
Filed: 1942-12-21
Abstract: 563,433. Controlling aircraft. FAIREY AVIATION CO., Ltd., and YOUNGMAN, R. T. Dec. 21, 1942, No. 18119. [Class 4] An aircraft having an auxiliary aerofoil which can be lowered from a recess in the underside of the rear part of a main wing to a position below the wing is provided with an airbrake such as described in Specification 562,365 and comprising a flap projected into or withdrawn from the airstream by a bellows device communicating with the throat of a venturi tube which is provided with a butterfly shutter. Brake flaps a, d actuated by bellows b, e are provided on the upper surface of the rear part c of the wing and on the under surface of the auxiliary aerofoil f. The bellows communicate by passages m, q with the venturi tube h formed in the wing and provided with a scoop j and a butterfly shutter k closing of which effects inflation of the bellows to render the flaps operative as shown. The shutter may be arranged to be opened consequent upon the lowering of the aerofoil f so that the bellows b is then deflated by suction in the venturi tube and as the passage q is disconnected from the tube, the bellows e is also deflated. The shutter is preferably not closed by the raising of the aerofoil f, independent means being provided for opening and closing the shutter when the aerofoil is in this position. To ensure suction in the throat of the venturi tube when the aerofoil f is lowered, the duct n leading from the passage q to the tube may be convergent as shown or a valve by which this duct is closed when the aerofoil is lowered may be provided. Means such as described in Specification 562,371 may be provided to,ensure that the flaps a, d are brought into operation simultaneously. The mechanism for lowering the aerofoil f may be of the type described in Specifications 461,157, 467,465 and 493,391.
Patent GB-608229-A (GB)
Title: Steering agricultural tractors by de-clutching
IPC: B62D15/00
Filed: 1945-07-16
Abstract: 608,229. Motor-vehicle driving arrangements. CHARRUES MELOTTE SOC. ANON. July 16, 1945, No. 18119. Convention date, April 7, 1939. [Class 79 (ii)] Relates to an agricultural tractor of the kind in which steering is facilitated by de-clutching one of a pair of driving wheels. As shown, the wheels 1 of a tractor have dog-clutch elements adapted to be engaged by similar elements 10 on sleeves which are slidably mounted on the half shafts 3. The inner end of each sleeve is provided with another set of dog-clutch elements 13 which are engageable with elements 14 on the axle casing 4. The sleeves are interconnected by levers 18 and a rod 19. When the tractor is proceeding in a straight line, the drive is transmitted to the wheels 1 through the axles 3 and the engaging clutch teeth 9, 10. To turn to the left the levers are moved to the right, which disengages the drive to the lefthand wheel and locks the axle solid with the casing. This enables the right-hand wheel to advance relative to the left-hand wheel. The reverse procedure is adopted for a right-hand turn. The differential unit C, Fig. 2, is rotatable on a collar P, a tow bar from which serves to couple a trailer. The collar has a forwardly extending arm 21 on which may be mounted a balance weight 22 to ensure good wheel adhesion. Specification 9042/95, [Class 79], and U.S.A. Specification 1,351,942 are referred to.
Patent GB-727162-A (GB)
Title: Improvements in and relating to a system for the automatic delayed transmission of previously recorded telephone signals
IPC: H04M11/04
Filed: 1952-07-17
Abstract: 727,162. Automatic exchange systems. MARTIN, H., and MARTIN, J. July 17, 1952 [July 18, 1951], No. 18121/52. Class 40 (4). [Also in Group XXXVIII] Signalling from substation apparatus which transmits dialling impulses and a recorded message in response to a burglar &c. alarm is commenced only when dialling tone is received from the exchange. The apparatus is additional to a telephone set T, Fig. 1, associated with an exchange line 5 and comprises a tape or wire recorder 15 which is driven by a motor 12 from supply leads 13. The dialling impulses are recorded on the wire or tape by interrupting at a dial 47, Fig. 7, a single voice frequency from a source 43 which has a level sufficient to involve magnetic saturation, the level of the subsequent message recorded at a microphone 44 and amplified at 45 being substantially lower so that only the recorded impulses control a marginal impulsing relay N which is connected to a reproducing head 16 through amplifying valves 17, 18 and a rectifier R2. When an alarm-detecting switch 6 is opened, relay P falls back and pulls up relay Z which locks and connects a transformer 11 across the exchange line. Relay Y then operates and closes the heater circuit to the valves. On receipt of dialling tone, relay A pulls up over filters F tuned to the dialling tone frequency and rectifier R1 and operates relay B which holds over an independent circuit. When the valve filaments reach their operating temperature a thermostatic switch C closes so that relays X and V operate in turn and start the motor. Relay X also pulls up slow-release relay D which disables relay A and couples the amplifying valves to the exchange line through condensers K. Marginal relay N then repeats the dialling impulses in the line circuit and falls back when the recorded message is subsequently transmitted. The message may be repeated several times and is then followed by a prolonged clearing impulse which operates relay N for a sufficient time to enable the connection to release and relay D to fall back. Relays B, X and V then relapse, the latter relay stopping the motor, and signalling may then be repeated without delay by relay C since the valve heater circuit remains energized by relay V. Disconnection of the apparatus is effected by opening contacts ml and m2 of a manual switch so that relays B and Z are disabled. In a second embodiment, Fig. 9 (not shown), more than one apparatus may be connected to a single exchange line, each apparatus pertaining to a particular alarm such as fire, burglary, or the faulty operation or failure of an unattended plant. An endless recording strip 85, Fig. 10, may be used which is housed within a casing as shown. The recording may alternatively comprise an engraved strip carrying an opaque layer which is scanned by a photoelectric cell, or a photographic film of variable density or of constant density and variable width types. Instead of alarm detecting switches 6, infra-red detectors may be used.
Patent GB-1216889-A (GB)
Title: Facings for subaqueous soil structures
IPC: E02B3/12
Filed: 1968-04-17
Abstract: 1,216,889. Lining watercourses. NICOLON N.V. 17 April, 1968 [17 April, 1967; 2 Nov., 1967], No. 18254/68. Heading E1H. A lining for a subaqueous surface comprises fascines 4, 5 which cross each other in a lattice pattern and a mat 1 of strong, slightly elastic, sand-light but water permeable synthetic resin material (e.g. a fabric of polyethylene yarn), the fascines being connected at their intersections to one an other and secured to the mat (as at 6, 7 and 8) by an attachment including elements of similar material to the mat. One form of attachment includes extra threads 2 woven into the mat and having sections 3 where they lie above the mat surface forcing loops to which cords may be anchored securing ithe fascines at 6, 7 and 8. An alternative form of attachment Figs. 3 and 4 (not shown) comprises bands of fabric similar to the mat stitched to the mat along their centrelines under one set of parallel fasoines 4, 'the bands having eyelets in their edges through which a cord may be passed forming the band almost into a sleeve round the fascines, the other set of fascines 5 being attached by similar but shorter bands between the intersections with the fascines 4.
Patent GB-1504690-A (GB)
Title: Electrochemical cells
IPC: C25C7/00
Filed: 1975-07-28
Abstract: 1504690 Electrolysis NATIONAL RESEARCH DEVELOPMENT CORP 28 July 1975 [26 April 1974] 18305/74 Heading C7B An electro-chemical cell 1 has an anode 2 and a cathode 3 of planar, dished or curved, tapered cylindrical or coned conforming shape, with or without a diaphragm between them, and operates with the electrolyte in the gap 6 between the electrodes subjected to shear forces to flow from centre outwards by rotating at least one of the electrodes, e.g. anode 2 mounted on rotor 4 driven by shaft 5, relatively to the other, preferably in contra-rotation (not shown). A diaphragm may be rotated relative to at least one electode; one or both electrodes may contra-rotate at equal or unequal rates. The electrodes and diaphragm (if present) may have planar circular faces (as shown) with the electrolyte flowing from the central feed duct 8 outwards via annulus 11 formed by a shroud 10 and stator 7. An array of cells may be arranged in series, parallel and/or bipolar connection, with common rotary mount(s) for individual rotary electrodes and/or diaphragms. The cathode may be of steel or Ni, and the anode may be of platinized Ti or graphite. The cell(s) may be used to electrodeposit metal, e.g. Cu, Zn, Sn or Cu/Sn alloy, in dendritic or powdery form, for inorganic or organic synthesis e.g. of propylene oxide from NaBr and propylene gas, or for processing multi-phase systems e.g. emulsions of dispersions of immiscible liquids. The electrolyte may be recirculated through a separate tank (26) Fig. 2 (not shown) for cooling.
Patent GB-109550-A (GB)
Title: Improvements in or connected with Means for Protecting Vessels from Submarines, Torpedoes, Mines or the like.
Inventor: WORTHINGTON JOHN
IPC: B63G9/00
Filed: 1916-12-22
Abstract: 109,550. Worthington, J. Dec. 22. 1916. Torpedo nets and screens.- Apparatus for protecting ships from the attacks of submarines, torpedoes, mines, or the like comprises a series of weighted nets or mats G mounted on rollers C carried by pairs of pivoted arms B preferably raised and lowered simultaneously by a winding drum and ropes passing around pulleys. the nets being also wound on their rollers by the same action. The nets are connected to their rollers by studs or other means C<5> so that, when struck, they become detached and envelop the torpedoes &c. The arms B are mounted on a shaft A carried in brackets D as shown in Fig. 4<a>.
Patent GB-597089-A (GB)
Title: Improvements in the manufacture of photosensitive glass, and articles made therefrom
IPC: C03C4/04
Filed: 1944-09-26
Abstract: 597,089. Glass. CORNING GLASS WORKS. Sept. 26, 1944, No. 18372. Convention date, Dec. 8, 1943. Drawings to Specification. [Class 56] [Also in Group XX] Comprises a photo-sensitive glass containing a small amount of gold as sensitizing agent and also either CeO2 not exceeding 0.05 per cent or SnO2 not exceeding 0.02 per cent and which remains colourless when heated except after exposure to ultra-violet radiations. In particular, the amount of gold present may be 0.01-0.03 per cent of the batch. Oxidizing agents such as Na- or KnO3 may be present, also one or more oxides of the metals of the second periodic group except Cd, Hg or Ra, but reducing agents should be avoided. After exposure to ultra-violet radiations, on subsequent reheating (to about 550 C.) the irradiated portion of the glass undergoes colour changes from light blue to purple or red according to the amount of exposure and/or heating. Thus, by interposing a mask between the source of radiation and the glass a coloured pattern, cartoon, sketch, picture, &c. may be formed in the glass. One such mask may be used merely to form a coloured strip around a glass sheet ; a second mask, which may be a photographic portrait negative, may then be used within the already irradiated strip so that on subsequent heating of the sheet a positive picture of one colour is formed in the glass within a differently coloured frame. As the negative may not allow sufficient ultra-violet light to pass, the emulsion may be formed directly on the glass on which the positive is to be developed. A graticule may be formed by making an enlarged drawing of the cross hairs, photographing the drawing to form a negative on a greatly reduced scale and then using this negative to transfer a positive photographic image to a glass disc made from the above glass.
Patent GB-380172-A (GB)
Title: Improvements in or relating to loft ladders
IPC: E04F11/06
Filed: 1931-06-25
Abstract: 380,172. Loft ladders. ROWE, W. S., Malton, Holmesdale Road, Orpington, Kent, and MONTGOMERY, J. F., 35, Tatnell Road, Honor Oak Park, London. June 25, 1931, No. 18375. [Class 20 (ii).] A loft ladder mounting comprises a superstructure which is mounted on the loft floor and affords a permanent sloping slideway for the ladder. In the form shown, the ladder comprises two sections 22, 22a, Fig. 1, and an extension 22b. As shown in sectional plan in Fig. 3, the longitudinals 15 of the extension are guided between guides 13, 14 of the superstructure 12, and form guides for the two bars 19, 20, of each side of the upper ladder section 22a. Upper and lower cross-bars 16, 17 on the extension 22b are adapted to engage with the superstructure when the extension is in either of its extreme positions. When the upper ladder section is fully extended, a hook 21 thereon engages with the cross-bar 17. The lower section is provided with bands 23, 24, which embrace the guides 19 of the upper section, and is formed also with a hook 25 which engages with a projection 26 when the sections are collapsed. In a modification, the lower section is completely detachable from the upper section and is provided with a strut so that it can be used as an ordinary step ladder. The sections are connected together by a projection on one engaging a recess in the other. Locking is effected by a pivoted latch 32, Fig. 5, which is received between two upstanding fingers 35, 36, of a plate 34 on the lower section 28. An ear 33 on the latch engages with the finger 36 which is curved to constitute a cam. The sections are thereby locked and wedged together when the latch is operated. The weight of the ladder is counterbalanced by a weight secured to a rope 27 which passes over an overhead pulley. The ladder may be raised and lowered manually or by mechanical electrical or other power. The trap door 11 may be hinged as shown, or may slide horizontally on rollers.
Patent GB-499282-A (GB)
Title: Improvements in or relating to moving stairways
IPC: B66B23/12
Filed: 1938-06-21
Abstract: 499,282. Escalators. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. June 21, 1938, No. 18391. Convention date, June 26, 1937. [Class 78 (i)] In an escalator step the bushings for the axles of the leading and trailing rollers comprise a cylindrical resilient sleeve having an outer cylindrical heavy load carrying surface and a pair of outer cylindrical light load carrying surfaces, the latter surfaces being of greater diameter and of less area than the former. The bushing 64, Fig. 6, is provided with narrow circular ridges 80, 81 which support the step while it is operating without load. Between these ridges is a bearing surface 82 of less diameter which receives and supports the axle support bracket 57 when the step is carrying a passenger. Grooves 83 are provided into which the ridges may spread when pressed down by a load. The body of the step comprises a tread 10, Fig. 3, a riser 11, and a pair of end bars 13. The tread is made preferably of moulded fibrous material with a heat hardened binder, and may be made in sections. It is supported by the bent in upper edge 31, Fig. 5, of the riser 11 and by an angle iron 22 which connects the bars 13. The riser is preferably of stainless steel and is strengthened by bending inwardly its end portions 33, and by spot welding a tapped bar 38 to the underside of the edge 31. The bar 38 receives screws 42 which pass through the tread. Grooves 23, 37 on the underside of the tread are engaged by the angle iron 22 and projections 36 on the edge 31, respectively, to prevent movement. Lugs 43 on the inturned bottom edge 32 of the riser are bolted to co-operating lugs on the end bars 13. A guard plate 53 protects the lower edge of the riser.
Patent GB-579916-A (GB)
Title: Improvements in continuous hank drying machines
IPC: F26B15/12
Filed: 1944-09-28
Abstract: 579,916. Hank - drying machines. HUNT & MOSCROP, Ltd., and SHARPE, J. Sept. 28, 1944, No. 18554. [Class 34 (ii)] In a continuous hank-drying machine in which the hanks of yarn B are supported and traversed through the machine by rotating or stationary horizontal poles A carried between a pair of endless chains C, heated drying air from fans G<1> is directed on to the hanks by means of apertures or nozzles f<1> which are themselves traversed through the machine above the said poles and at the same speed as the latter. In the construction shown the apertures or nozzles f<1> are constituted by the adjacent sides of triangular shaped members F, which are mounted between a pair of endless chains E and have the same spacing as the poles A, and one or more fans G<1> are fitted in each of a number of chambers G arranged along the full length of the machine. The fans withdraw air from ducts a, which are disposed in the walls of the apparatus and communicate with the drying chamber proper by means of an apertured plate a<1> at the bottom thereof, and recirculate it through the drying chamber, steam heated &c. tubes H being located between the fans and the nozzles f<1>. The poles A are oval in shape and preferably hollow and perforated, rotation thereof being effected by the engagement of associated spur wheels c<1> with a fixed rack D in such a manner that the hanks make one complete turn in their passage past each successive chamber G.
Patent GB-1101604-A (GB)
Title: Photometric apparatus for evaluating the colour density of a sample
IPC: G01N21/29
Filed: 1965-05-04
Abstract: 1,101,604. Comparison photo-meters. R.W.D. MACDONALD. March 31, 1966 [May 4, 1965], No.18661/65. Heading G1P. [Also in Division G2] A comparison photo-meter comprises a lightsource 1, a graduated rotatable wedge 7 through which part of the light from the source passes, a sample container (not shown) through which another part of the light beam is passed, the light from the wedge and the sample container being incident on two collimating lenses 9, 12, the two beams thus formed being combined by associated parallelogram prisms 10, 13 in such a way that light from the sample encircles light from the wedge 7. The two prisms are arranged at an angle to each other, one end of the prism 13 having a central extension 15 which engages one end of the prism 10 so that light incident on the central portion of each prism end is transmitted while light incident on the outer portions is reflected. In this way a combined beam of light is passed to a viewing system, the centre of the image seen representing light from the wedge only and the outer portion light from the sample only. A graduated band mounted on the wedge 7 enables any adjustment of the wedge, in order to produce equal intensity, to be measured.
Patent GB-440343-A (GB)
Title: Improvements in or relating to the protection of portable electric apparatus
IPC: H02H7/00
Filed: 1934-06-25
Abstract: 440,343. Protective cut-out arrangements. REYROLLE & CO., Ltd., A., Hebburn-on-Tyne, CLOTHIER, H. W., 3, Jesmond Park West, LEYBURN, H., 212, Wingrove Road, both in Newcastle-on-Tyne, BURGESS, W. A. A., Inglethorpe, Kenners Dene, Tynemouth, and TIPLADY, J., 33, Brandon Grove, Newcastle-on-Tyne. June 25, 1934, No. 18679. Addition to 405,339. [Class 38 (v)] The invention of the parent Specification is, for protecting the apparatus against damage due to failure and subsequent resumption of the supply, modified by providing in the pilot circuit D, D<1> at the apparatus end a controller J, which in its movement to closed position passes through an intermediate position wherein an increased current flows in D, D<1>, for instance by shorting at J<3>, J<4> an impedance H. The main switch B, B<1> is further controlled jointly by the differential relay and an auxiliary relay K in the pilot circuit, K being so adjusted as only to close with the increased current but to remain closed with the normal. current flowing when J is fully closed. The differential relay is shown as a relay F<5> which closes its contacts only with no current or equal currents flowing in the opposing coils F<1>, F<2> on the core F<3>, the coil F<2> being in the mimic circuit with the impedance G. To start the apparatus, J is moved to the intermediate position to energize K which closes its contacts K<1>, and when the controller is moved to closed position inserting the impedance H, equal currents flow in F<1>, F<2>, and the contacts F<6> close and energize the coil B<1>. The reverse process occurs in stopping, the main switch opening at the intermediate position of J. If the supply fails, K will be de-energized, and the operations can only be resumed by opening the controller and closing it. Also, if J is left in its intermediate position, resumption of supply cannot reclose B owing to F<6> being opened. The pilot can also be opened by overload coils L in the main circuit, while a broken or shorted pilot circuit will disturb the balance of F<1>, F<2> and open, or prevent closure of B.
Patent GB-1218299-A (GB)
Title: Improvements in containers for protecting fragile objects
IPC: B65D85/32
Filed: 1969-04-11
Abstract: 1,218,299. Egg &c. boxes. O. BAKKE & CO. (PTY.) Ltd. 11 April, 1969 [18 April, 1968; 2 Dec., 1968], No. 18709/69. Heading B8P. A moulded box for eggs &c. has a base 4 with moulded egg-receiving cups 5, parallel side panels 7, top panels 8 with egg-receiving recesses 11, end panels 12, and latch tongues 14 on the latter for engagement in slots 6 along the base. As shown, the base 4 and the panels 7, 8, 12 are connected by hinge lines 9, 10, 13: alternatively, either the top panels 8 may be permanently at right angles to the side panels 7, or the side panels 7 may be held permanently at right angles to the base 4 by integral corner webs (21), Fig. 5 (not shown). The latch tongues 14 are formed with integral moulded detents 15, each of which is offset sideways along its slot 6 when the box is closed. Advertising matter may be displayed on the side panels 7, or labels heatsealed across the junction between the top panels 8. The box shown is preferably moulded from foamed polystyrene, and the edges of the panels 12 may be welded together, so the box is destroyed after use: alternatively the box may be moulded from pulp.