baber/WOPTO huggingface dataset:
Patent GB-715633-A (GB)
Title: Automatic apparatus for conveying loads
IPC: A61G19/00
Filed: 1951-12-10
Abstract: 715,633. Load-handling appliances. JOLIS, H. Dec. 9, 1952 [Dec. 10, 1951], No. 28851/51. Class 78 (3) Automatic apparatus for conveying loads comprises a platform with means actuated by the arrival of the load on the platform for causing the platform to move to the discharging position means actuated by the arrival at the discharging position for stopping the platform and means for causing the platform to return to the loading position when the load is discharged, an inclined loading runway and a device actuated by the arrival of the platform at the loading position to allow only a single load to move on to the platform. As shown in Fig. 1, a load is automatically transferred from inclined guide rails 14 in line with a platform 16 at one level to an unloading position at another level where it is discharged on to a runway 13. The platform 16 has inclined rails 17, a pivoted catch 23 with one end projecting above the rails to retain the load, and a catch 25 in the form of a bellcrank lever, one arm of which retains the catch 23. The platform is guided by uprights 15 in a framework 10 in a well 11; to one upright is attached an abutment 26 in the path of the bellcrank lever. A stop 34 projects through the platform and operates a threeway valve controlling a hydraulic ram 22 fixed at one end in the flow and having chains 18 connected to the piston rod, the chains passing over sprockets and connected to the side of the platform. A T-shaped lever 28, 29 pivoted to the rails 14 is connected by linkage to a bellcrank lever 31 also pivoted to the rails. The lever is restrained by a spring so that one arm 29 retains a load with the lever 31 depressed by the platform. The pump of the cylinder is continuously running, and when the platform is raised the lever 31 rotates and the arm 28 is rotated to retain the next load. At the upper level the platform is stopped by a member 42 on the upright which moves the valve to the holding position and the abutment 26 strikes the lever 25 to release the catch 23 allowing the load to pass on to the runway 13 where it either strikes a stop 45 or the stop 42 moves further to set the valve for load lowering under gravity. The patform descends on to members 49. The catch 25 is reset by a stop 27 in the well and the platform rotates the lever 31 to rotate the lever 28 to release another load and retain the next load. The stop 34 operates the valve for load raising. In alternative forms the loading and discharge runways and the platform are roller gravity conveyers and one chain may be used passing under the platform. The tripping members may be switches controlling the valve through a solenoid.
Patent GB-174994-A (GB)
Title: Improvements in and connected with braking apparatus for motor driven machinery
IPC: B66D5/00
Filed: 1920-10-12
Abstract: 174,994. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Oct. 12, 1920. Actuated or applied by driving-mechanism disengagers; motor controlling appliances; springs; periodic.-Mechanism applied to motor-driven machinery for the conjoint control of a brake and another device, for example a clutch or an electric controller, is so arranged that the applied braking pressure, although regulatable at will, is independent of the total force applied to operate the brake and the other device. Fig. 1 shows the invention applied to a lift, in which brake blocks applied to a drum 1 are operated in conjunction with an electric controller 2 by a small motor 3. The motor operates a sector 26 in one direction or the other and so transmits the motion to the controller through a link 44, and at the same time moves a lever 12 anti-clockwise through one or other of the slotted links 30, 31. The lever 12 is pivoted on the brake arms 7 and is connected to a rod 13 carrying two springs 4, 5 one of which tends to press the brake arm 6 against the drum, while the other is arranged between a cross-head 17 suspended from the end of the brake arm 7 and a second guided cross-head 20 engaged by a second stop 21 on the rod. When the sector 26 is in mid-position the brakes are applied and the controller is in the " off " position. Energizing the motor moves the controller into an acting position and operates the lever 12 to move the rod 13, whereby the brake is released. When the motor 3 is de-energized, the spring 5 separates the cross-heads 17, 20 and restores the motor to mid-position through the lever 12. The separation of the cross-heads continues until the spring 4 is compressed sufficiently to balance the residual pressure of the spring 5, and since the lever 12 is no longer held against rotation, the pressure of the spring 5 on the cross-head 17 is available for applying the brake block. Both blocks therefore are applied with a force equal to that exerted by spring 4, which is dependent in the adjustment of the nut 15 and stop 16 and can be set to apply a predetermined pressure, independently of the maximum force exerted by spring 5. To prevent rotation of the sector 26 bevond its limit of engagement with the pinion 25, cams, mounted on the sector shaft 27, become effective at the limits of movement and crossed arms 58 of an auxiliary light brake on the motor shaft. An additional cam 63 may operate one of these brake arms through the lever 60 and spring 62 to apply the brake lightly when the de-energized motor reaches mid-position under the restoring force of the spring 5. The controller 2 is illustrated diagrammatically and comprises oppositely-acting cams 39, 40 on the rod 41 adapted to operate one or other of two contact-carrying rods according to the direction of rotation.
Patent GB-654754-A (GB)
Title: Improvements in disc brakes
IPC: F16D65/12
Filed: 1948-11-06
Abstract: 654,754. Disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Nov. 6, 1948, No. 28880. [Class 103 (i)] A brake disc, particularly for use in aircraft wheel brakes, comprises a thin (i.e. of thickness not exceeding 0.10 inch), annular braking member 1 rigidly secured between two annular retaining frames 2 and 3. The braking member 1 may consist of one or more layers of interlaced wires, gauze, perforated or plain sheet metal, preferably of tungsten, nickel-chrome, or beryllium copper. The edges of the member 1 may be compressed within slots in the retaining members 2 and 3, as shown in Fig. 2, or the members 2 and 3 may be split in halves so that the member 1 passes between them and is secured by brazing or welding, as shown in Fig. 3. The disc is intended for use with opposed spot-type friction-pads.
Patent GB-1452435-A (GB)
Title: Combined suction and blow-off nozzle connectable to a source of compressed air
IPC: B08B5/00
Filed: 1974-07-01
Abstract: 1452435 Pneumatic cleaning device A H PETTERSSON 1 July 1974 [13 July 1973] 29064/74 Heading F4X A combined suction and blow-off nozzle 10 intended for industrial use and connectable (via a line 30) to a source of compressed air, has a two-way valve unit 2 which in one position of an operating lever 17 directs the compressed air to a blowing tube 11 positioned within the nozzle 10, and in another position of the lever 17 directs the compressed air via a tapered passage 29 in the valve body to a venturi passage 3 positioned to cause induction at the cleaning nozzle 10, any particles &c thus collected by the suction being conveyed via a tubular casing 1 to a collecting bag 7. The nozzle 10 may be telescoped into the casing 1 to expose the tube 11 for blowing into confined spaces. Air flow through the tube 11 may be varied by screwing the tube 11 more or less into the valve body (Fig. 2). Fig. 2 shows the valve arrangement. A hollow piston 21 pressed upwardly by a spring 23 is movable axially by means of the lever 17. The piston has compressed air inlet ports 32 and outlet ports 25, 26. A chamber 31 beneath the piston is filled with compressed air. Actuation of lever 17 to move the piston downwardly (against the action of a spring 23) allows compressed air to enter (via port 32) the piston interior. For suction, the lever 17 is actuated to bring piston outlet port 25 into communication with a valve body passage 27 at the end of which is the passage 29. For blowing, piston outlet port 26 is brought in communication with valve body passage 28 to the end of which is connected the tube 11.
Patent GB-209717-A (GB)
Title: Improvements in timing devices for ignition magnetos
IPC: F02P5/02
Filed: 1923-11-17
Abstract: 209,717. Barbarou, M. J. B. Jan. 12, 1923, [Convention date]. Timing; dynamos, arrangement of.-Two or more magnetos 6, 7 for one engine are keyed on a single shaft 8 driven from the engine shaft 1 through helical gearing 2, 3, 9, the gear 9 being slidingly keyed on the shaft 8 for varying simultaneously the sparking advance of all the magnetos. The gear 9 is normally held in the position shown by a spring 10 and is moved along the shaft 8 by means of a sliding fork 11 having rack teeth 13 engaged by a segment 14 on a rock shaft 15. For aircraft engines, the magnetos are arranged adjacent to the end of the engine shaft which carries the propeller.
Patent GB-432185-A (GB)
Title: Improvements in cinematographic stereoscopic systems
IPC: G03B35/24
Filed: 1933-10-20
Abstract: 432,185. Kinematography. NOAILLON, E. H. V., 53, Avenue Jupiter, Forest, Brussels. Oct. 20, 1933, No. 29102. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 31, 1934]. [Class 97 (i)] In apparatus of the type described in Specification 303,067, [Class 97 (i)], comprising an apertured filter screen of lightabsorbing material oscillated before a projection screen upon which righteye and left-eye pictures are projected, the filter screen is formed in parts 6, each pivoted, at 7, to a rod 8, and, at 9, to small rods 10 pivoted on a rod 11, springs 12 being also connected to the pivots 9. The rods 8, 11 are reciprocated longitudinally, e.g. across guides 19, by bell-cranks 13, 14 connected by links 15, 17 to a crank 16. The projection screen may be similarly formed of bands of white material, and may be oscillated in front of a background screen.
Patent GB-1395133-A (GB)
Title: Oscilloscope having external trigger display mode
IPC: G01R13/28
Filed: 1973-06-19
Abstract: 1395133 Cathode-ray tube oscilloscopes; transistor gating circuits TEKTRONIX Inc 19 June 1973 [5 July 1972] 29170/73 Headings H3T and H4T In a cathode-ray tube oscilloscope in which a waveform is displayed by vertical deflection of a horizontal time base triggered by an external triggering signal, an additional display mode is provided in which the triggering signal together with the exact point on the latter at which the sweep is initiated is displayed. Fig. 1 shows the general scheme in which an external triggering signal at input 30 is selected by switch means 32 and fed to trigger pre-amplifier 34 to produce a trigger pulse controlling the horizontal time base means 38, 40, 42, the triggering signal input together with the adjustable triggering level from potentiometer 36 being also supplied via an amplifier 20 and delay line 21 to a mode selector 22 which selectively supplies the signals from one of the channels 1 or 2 or the signals from the delay line 21 to the vertical deflection plates 28 of the oscilloscope 29, to produce a display as shown at (A) or (B), Fig. 4, respectively. This Figure assumes that identical signals are supplied to channel 1 or 2 and to the external trigger input 30 although, in practice, the signals are usually different or, at least, not coincident. Fig. 3 shows the time relationship or the various waveforms and signals. Fig. 2 shows details of the trigger pre-amplifier 34 which includes transistors 54, 56 connected as a comparison amplifier and supplying the triggering signal input together with the actual triggering level to the two inputs of the amplifier 20 which operates as a balanced differential amplifier and with switch 90 open, +V being greater than +REF, maintains a nosignal D.C. balance at its output. In this condition the display A (Fig. 4) is produced in response to the input waveform at channel 10 and trigger input 30. When it is desired to display the triggering signal input together with the actual triggering level switch 90 is closed so that transistors 76 and 78 turn off and transistors 74 and 80 turn on and relay 22 is energized to switch the inputs to delay line 24 from vertical amplifier 16 to the outputs of amplifier 20 to produce the display B (Fig. 4).
Patent GB-887656-A (GB)
Title: Improved apparatus for use in charging tunnel-kiln firing cars
IPC: F27D99/00
Filed: 1958-09-12
Abstract: 887,656. Kiln trucks. GATZKE, P. Sept. 12, 1958 [Sept. 12, 1957], No. 29237/58. Class 51 (2). [Also in Group XXX] An apparatus for use in charging tunnel-kiln firing cars comprises a series of friction wheel drive units 3 which engage a friction rail on the underside of the firing cars 1 and which are arranged to balance the bearing pressure between the friction wheels 3a of the units 3 and the friction rail. In the arrangement shown in Fig. 1, the firing cars 1 are fed by the units 3 on operation of a foot switch 4, past loading platforms 5 arranged at different heights to facilitate loading of the cars 1. The friction wheel drive units 3 are mounted on pivoted plates 7 upwardly biased at one end by a spring 9.
Patent GB-646991-A (GB)
Title: Pessary gun
IPC: A61D7/00
Filed: 1947-11-03
Abstract: 646,991. Veterinary appliances. PINHAY, F. A. Nov. 3, 1947, No. 29251. [Class 81 (ii)] A pessary gun for veterinary use comprises a flexible tube 1, a corrugated handle 15 secured to the end of the tube, a recess in the handle which houses a loose spiral spring 9 which is compressed when a cable 3 sliding inside the said flexible tube and secured at one end to a piston 19 is withdrawn by means of a knob 14 or ring secured to the other end of said cable, and a catch adapted to hold the piston in this withdrawn position, ready, on release of the catch, to expel a pessary 18 placed in a chamber 5 in which the piston slides. As shown, the catch comprises a pin 16 on a rod 11 to which the cable is secured, the pin passing through a slot 17<1> in an end cover 12. the piston then being held in the withdrawn position by giving an angular movement to the knob 14.
Patent GB-1268877-A (GB)
Title: Feeders for introducing finely divided material into vessels under pressure
IPC: E21B43/20
Filed: 1969-06-10
Abstract: 1,268,877. Separating liquid from wood chips. DEFIBRATOR A.B. 10 June, 1969 [4 July, 1968], No. 29258/69. Heading B1D. [Also in Division B8] Wood chips, treated with liquid or steam in vessel 46, are discharged therefrom by pocketted rotor 1 into trough 26 whence they are discharged into pressure vessel 42 by screw 25, the liquid of vessel 42 occupying the trough 26. The chips leave vessel 46 in moistened state and the surplus liquid is discharged from each pocket of rotor 1 via the respective channel 10 into discharge pipe 21. Liquid from rough 26 is withdrawn through sieve 27 by pump 29 which pumpsit through pipe 36 and a channel 10 so as to flush out chips from a. pocket 2 into trough 26, the liquid of which is thus circulated.
Patent GB-899838-A (GB)
Title: Aircraft landing gear
Inventor: WESTCOTT WILLIAM B
IPC: B64C25/42
Filed: 1960-08-24
Abstract: 899,838. Aircraft landing gear brakes. CLEVELAND PNEUMATIC INDUSTRIES Inc. Aug. 24, 1960, No. 29308/60. Class 4. An aircraft landing gear comprises a pair of laterally spaced wheels on oppositely disposed fixed axles extending laterally from a support, brake means removably mounted on the support between the wheels, and torque means connected to the brake means and detachably connected to the wheels, whereby the torque means and brake means can be removed while the wheels remain on the axles. The Figure shows one end of an axle beam 17 which is pivoted about a horizontal axis to the undercarriage leg, see Fig. 1 (not shown), the other end of the beam being similar. The beam end is forked, each arm of the fork bearing a fixed axle 24, on which a wheel hub 18 is journalled by tapered roller bearings 26, 27. The outer non-rotary part 22 of any suitable type of brake is located between the fork arms by bolts 34 and a torque link 37 connected to beam 17. The inner rotary part 41 of the brake has splines engaging splines 42 on a torque tube 43. Each end of tube 43 has splines 44 engaging internal splines on an end cap 46 retained on the tube by a nut 48, and on the hub 18 by bolts 47. After landing, the brake may be replaced by a cool brake by unscrewing one nut 48, withdrawing the torque tube 43 at the side opposite that nut and then undoing bolts 34 and link 37. The new brake is installed by the reverse process.
Patent GB-789507-A (GB)
Title: Improvements in silencers for exhaust gases
IPC: F01N1/08
Filed: 1956-09-26
Abstract: 789,507. Exhaust silencers. BURTON, L. J. Sept. 26, 1956, No. 29366/56. Class 7(2) In a silencer comprising two complementary pressed metal parts A<SP>1</SP>, A<SP>2</SP> provided with peripheral flanges and welded together to form a hollow casing and a central, longitudinally-extending partition B, the latter has extending at right-angles thereto and alternately on opposite sides thereof a number of baffles E pressed out of the partition to provide D-shaped openings in the partition so that the gases are constrained to flow in a sinuous path from the inlet C to the outlet F of the silencer
Patent GB-1496949-A (GB)
Title: Cathode ray tube
IPC: H01J29/07
Filed: 1975-07-14
Abstract: 1496949 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 July 1975 [17 July 1974] 29413/75 Heading H1D In a multigun colour TV C.R.T. to allow reduction of the obstruction by a shadow mask without loss of definition the mask 7 carries electrodes forming a quadruple lens round each aperture, defocusing vertically and focusing horizontally just beyond the luminescent screen 6, to irradiate from each gun a colour phosphor vertical stripe R, G, B slightly wider than the electron impact area. The mask may comprise crossed vertical and horizontal strips 13, 14 and 11, 12, attached but insulated with glass, each set commoned and carrying a potential respectively above and below the mean mask potential. Alternatively the mask may be made from interwoven conductors insulated at their intersections (Fig. 4, not shown) or if may be an apertured plate held at phosphor screen potential (e.g. Fe for magnetic screening) (Fig. 6 not shown) carrying between the apertures a set of vertical strips (e.g. vapour deposited Al) at a lower potential or isolated and charged by the electron beams to reach a stable equilibrium potential. In all embodiments secondary electron effects are negligible.
Patent GB-1369188-A (GB)
Title: Energy absorbers
IPC: B62D1/19
Filed: 1973-06-21
Abstract: 1369188 Collapsible steering columns GENERAL MOTORS CORP 21 June 1973 [10 July 1972] 29510/73 Heading B7H [Also in Division F2]  An energy absorber, having two levels of energy absorption for example for use in a steering column provided with upper and lower telescopically arranged jackets 22, 24 comprises a series of balls 42 and 44 located between the jackets, balls 42 being located in recesses 46 provided in at least one jacket, whereby during a first range of telescopic movement balls 44, being an interference fit between the jackets, deform the latter while balls 42 travel in recesses 46 free of any interference engagement whereafter balls 42 engage at tapered wall 48 at the end of each recess 46, thereby providing an interference engagement to deform the jackets' walls. As shown, the balls 42 are of larger diameter than balls 44 and are carried in a sleeve 40 in two axially spaced groups, each group having two annular rows. In each row there is provided sets of balls 42, 44 the balls 42 being axially aligned with their counterparts in the adjacent row whereas the balls 42 in each group are staggered angularly with respect to those in the other group. In alternative constructions the balls 42, 44 are the same size or recesses 46 for the balls 42 may be of differing lengths. In a further embodiment recesses 46 instead of opening at one end of jacket 24 as shown in Figs. 28, may be remote from that edge. The steering shaft has a shear plug 38 which fractures under a given axial force.
Patent GB-656814-A (GB)
Title: Improved method of producing a metallic coating on articles of magnesium and magnesium-base alloys
IPC: C25D5/42
Filed: 1948-11-15
Abstract: Magnesium or magnesium-base alloys are coated with zinc by treating them with an aqueous alkaline solution having a pH of 8-11 formed by dissolving in water an alkali metal pyrophosphate and the acetate, borate, bromide, chloride, cyanide, fluoride or sulphate of zinc. Sodium or ferric fluoride or ferric oxalate may also be present.  The zinc-coated surface may be used as a base for electroplating, e.g. with silver, gold, copper, cadmium or tin, and further metallic coatings, e.g. cadmium, chromium, nickel, silver or zinc, may follow. Prior to coating the surface may be cleaned with acetic or hydrochloric acid solutions or a solution of aluminium chloride.
Patent GB-674341-A (GB)
Title: Improvements in or relating to photographic copy boards
IPC: G03B27/62
Filed: 1949-11-22
Abstract: 674,341. Photographic copy - boards. POWERS PHOTO ENGRAVING CO. Nov. 22, 1949 [May 7, 1949], No. 29842/49. Class 98 (i). A photographic copy-board comprises a back and a frame hinged thereto and having a transparent cover, the back and frame being pivotally mounted for movement from a horizontal to a vertical position, locking means securing the frame to the back, and means normally preventing unlocking of the locking means while the back and frame are in vertical position and permitting unlocking in the horizontal position. As shown, a copy-board pivoted at 22 on supporting frames 10 and located in the horizontal and vertical positions by spring stops 95, 97, respectively, comprises a base-board 44 mounted in a frame 48 and having a layer 46 of sponge rubber or other resilient material on which the copy is located, and a platen member 30 hinged thereto at 40 comprising a metal frame 34 supporting a glass sheet 32, the hinge-pins 40 being above the level of the layer 46 and a depending arm of the frame 34 adjacent each pin 40 carrying one end of a tension-spring secured at its other end to the frame 48 so that the copy-board is normally urged open. The base-board frame 48 is latched in the horizontal position when the copy-board is open by a shoulder on a latch 67 carried by a spring arm 66, which latch is cammed to free the base-board frame by closing down the platen frame 34. This frame is latched to the base-board frame by fingers 70, 74, pivoted on links 79, 82 secured eccentrically to a disc 76 rotatable by a handle 86, engaging in apertures in brackets 72, 75 on the frame 34. On raising the closed copy-board to the vertical position, the arm 88 of a bell-crank lever, pivoted at 89 and held against anti-clockwise movement in the horizontal position of the copy-board by a fixed projection 94 on the member 10 engaging the other arm 90 of the bell-crank lever, moves under the action of a spring 92 into the path of an arm 87 on the disc 86, thus preventing unlocking of the copy-board until it is returned to the horizontal position.
Patent GB-392442-A (GB)
Title: Improvements in or relating to fruit-washing devices for table use
IPC: A47G19/00
Filed: 1932-10-25
Abstract: 392,442. Washing fruit. SAI, C., 7, Via Galleria, Trieste, Italy. Oct. 25, 1932, No. 29846. [Class 28 (ii).] A fruit-washing device for table use comprises a reservoir a for the clean water having an adjustable outlet e and supported on a frame c a short distance above a collecting vessel h for the used water. The reservoir a may have a cover b and it may be formed with a dish like extension a<1> for receiving fruit.