baber/WOPTO huggingface dataset:
Patent GB-214417-A (GB)
Title: Improvements relating to gear cutting machines, and the like
IPC: B23F23/08
Filed: 1923-03-20
Abstract: 214,417. McLeod, R. J. March 20, 1923. Gear-cutting.-In a method of cutting or grinding gears &c. the relative angular positions of the master or main dividing-wheel and the work can be varied at will so that errors due to imperfections in the master gear may be minimised. The work table a, Fig. 1, of a hobbing-machine is rotatable on a primary table e rigidly secured to the master wheel f driven by a worm f<1>. The tables a and e may be clamped together by bolts e<1>. In order to vary the angular relation of the table a and master wheel f the bolts e<1> are slacked off and a worm g driven by spur gearing from a shaft m and mounted on swinging links is engaged by means of a handle p with a worm wheel cut in the periphery of the table a. In a modification Fig. 3 a gear shaper is provided with a master worm s loose on the work spindle u the drive being normally transmitted through a keyed clutch member v which is disengaged in order to adjust the master wheel relatively to the work. In operation the blank is first cut to depth and the teeth nearly finished and the process of correction is then carried out by taking further cuts over the whole wheel, the relative positions of the blank and master wheel being altered by say 90‹ between successive cutting operations. In a further modification the same principle is applied to pinion cutters by grinding.
Patent GB-853641-A (GB)
Title: Improvements in production of shell molds
IPC: B22C23/00
Filed: 1959-03-09
Abstract: A wax or similar expendable pattern is coated with a slurry of finely-divided refractory material suspended in an aqueous sol containing (on a dry basis) from 60 to 80% by weight of colloidally dispersed slica and from 8 to 35% by weight of a resinous polymer and, after being allowed to harden, heated without external reinforcement to a temperature high enough to eliminate the pattern and to decompose and drive off the resinous polymer.  The coating may then be wetted with an aqueous sol containing colloidal silica but free from suspended non-colloidal refractory and a further coating or coatings applied.  As examples of the refractory material, that of the first coating is finely divided zircon (e.g. 90% minus 325-mesh) while that of the coating(s) subsequently applied may comprise from 30 to 70% minus 325-mesh zircon particles with the balance predominantly plus 200-mesh grog particles.  Suitable refractories other than zircon include zirconium oxide, aluminium oxide, silica, grog (crushed or ground fired silicaalumina clay refractories), and chromite.  It is preferable to coat the pattern several times, each coating being "sanded" by sprinkling with relatively coarse refractory particles while still wet in order to promote bonding between the coatings.  The sol used comprises from 1/4 to 15 parts by weight of refractory per one part by weight of sol and preferably especially in the compositions used to form the second and susequent coats on the pattern, from 5 to 8 parts.  The sol vehicle itself contains (on a dry basis) from 60 to 80% (preferably from 65 to 75%) by weight of silica, from 8 to 35% (preferably from 12 to 25%) by weight of resinous polymer, from 0,5 to 10% (preferably from 1 to 2%) by weight of film-forming agent, e.g. gelatin, and from 1 to 15% (preferably from 5 to 10%) by weight of wetting agent, e.g. sodium lauryl sulphonate.  Any resinous polymer capable of being dispersed in aqueous media may be used, including polyvinyl acetate, vinyl acetatevinyl chloride copolymer, vinyl chloride-acrylic acid (or acrylonitrile) copolymer, an acrylic polymer (e.g. polymerised acrylic acid), rubber, and methyl cellulose.
Patent GB-1152161-A (GB)
Title: Container Loader Apparatus for a Pocketed Conveyor System
IPC: B08B9/20
Filed: 1967-02-20
Abstract: 1,152,161. Endless conveyers. BARRY-WEHMILLER CO. 20 Feb., 1967 [10 March, 19661, No. 8056/67. Heading B8A. Rows of bottles in line abreast are transferred from a position B (Fig. 4) astride conveyers 31 to respective pockets 12 of a bottle-washer conveyer 11 by endless belts 77 and pick-up members 78 carried by a drive member 63 of the belts 77. The bottles pass on to a slightly downwardly inclined end section of the conveyers 31 between idlers (37a), (Fig. 2, not shown) and drive sprockets (37). Stop members 64 hold the bottles stationary until they are picked up by the members 78. Bottles which fall over in this operation are engaged by members 82 also carried by drive member 63. Oscillating guide places 58 interdigitate with fixed guide plates 59 and are driven by a linkage 54, 56 driven by gearing connected to a drive motor 38 for the conveyers 31. Another drive motor (not shown) for the conveyer 11 is coupled by a chain 22 to drive the member 63 and belts 77. A cam plate (85), (Fig. 6, not shown), mounted on the end-face of the member 63 with provision (see slots 86) for circumferential adjustment, operates switches (L1), (L2) to intermittently energize the drive motor 38 in suitable synchronism with the movement of the belts 77 and pick-up members 78. Each belt 77 is joined by a spiral spring coupling element (77d), (Fig. 5, not shown) which engages a pair of respectively oppositely threatded spring members let into each of the belt ends to be joined.
Patent GB-208672-A (GB)
Title: Improvements in, or relating to, valves for rock drills and like fluid pressure operated tools
IPC: B25D9/18
Filed: 1923-03-21
Abstract: 208,672. Rayner, G. H. T., and Rayner, P. March 21, 1923. Fluid-actuated gears.-In valve-gears comprising two equal valve pistons working as one unit with a reduced middle portion working in one or more central partitions in the valve chamber such as described in Specifications 194,611 and 208,661, the partition t is made in two or more parts retained in position by a liner x at one end of the chamber, or by liners on both sides. Leakage ports y are provided in the valve collars p, q, or in the sides of the valve chamber. The valve controls separate inlet and exhaust ports c, d, e, f at each end of the cylinder, is differential in action, and is thrown by the pressure of fluid passing to exhaust acting on one or other of the annular faces v, wand the compression, supplemented in pressure by leakage fluid, acting at the opposite end of the cylinder.
Patent GB-1046822-A (GB)
Title: Vibrator system for stimulating peristaltic movement
Inventor: MENCACCI SAMUEL A
IPC: A61H23/04
Filed: 1965-02-25
Abstract: 1,046,822. Vibrating systems. MENCACCI S. A. Feb. 25, 1965 [March 4, 1964], No. 8194/65. Heading A5R. A vibrator system for stimulating peristaltic movement includes a source of alternating current which is connected through a frequency regulator or timer 8 to a vibrator device which comprises a solenoid 4 surrounding a movable armature 3 terminating in a vibrator head 2. Spring 5 surrounds armature 3. The head 2 may act directly on the patient's backbone or as in Fig. 3 (not shown) the vibrator head 17 may act on bladder 15 communicating via conduit 14 with bladder 13, the bladders 13, 15 and conduit being filled with a gas or liquid, such that the bladder 13 does the impacting on the patient. The vibrator device may be incorporated in a belt the inside padding of which has a recess to receive the vibrator head or in the cover of a toilet bowl such that the vibrator head protrudes from the inside of the cover.
Patent GB-1174551-A (GB)
Title: Apparatus for Controlling a Steam Turbine
IPC: F01D17/14
Filed: 1968-02-20
Abstract: 1,174,551. Turbine-stop-gear. CARRIER CORP. Feb.20, 1968 [March 27, 1967], No.8308/68. Headings F1K and F1T. [Also in Division F2] An apparatus for controlling a steam turbine, comprises a throttle valve 29, adjusted by a handwheel 63, and a centrifugal trip weight 70 mounted in a turbine shaft, which upon overspeed depresses a plunger 74 to pivot a lever 78 and retract a rod 55 from a spring-loaded cam 47, and allow it to rotate to move split nut parts 39, having pins 51, from engagement with the valve spindle 25, so that the valve is closed by a spring 33.
Patent GB-512945-A (GB)
Title: Vacuum-cleaner bag and method of manufacturing same
IPC: A47L9/14
Filed: 1938-03-18
Abstract: 512,945. Vacuum cleaner dust bags. KONSTANTINOSTERDAHL, R. March 18, 1938, Nos. 8352, 8353 and 8354. Convention dates, March 19, 1937, June 26, 1937 and Dec. 7, 1937. [Class 8 (ii)] [Also in Group XVII] A collapsable vacuum cleaner bag has a body 9 of paper &c. with an upper portion 8 folded or corrugated so that it can be unfolded outwardly to form a continuous annular flange adapted to be secured to the cleaner. The bag may be enclosed in an outer separate cotton bag with a metal flange. The bag may be formed from a sheet 16 folded transversely at creases 11, 12 and creased along lines 13, 14. A strip 15 is glued to the lower part, and a web of perforated paper on the other side so that the folds below the crease 13 are enclosed between the two. The perforations 10 are formed by cut-out flaps, the ends of which may be lightly connected with the web. The inner side of the web is covered with a liquid-cellulose layer which may have a lining of open-work material with large openings. Bags are formed from blanks cut from the composite sheet.
Patent GB-796934-A (GB)
Title: Method of producing a high finish on paper products
IPC: D21H25/14
Filed: 1956-03-16
Abstract: 796,934. High-gloss, mineral-coated paper. PAGE, J. S. E. (Rice, J. C.). March 16, 1956, No. 8354/56. Class 96. A high-gloss, smooth-finish, flexible, readily printable mineral-coated paper of good folding characteristics is made by applying a coating of at least 70 per cent of clay and/or pigment, e.g. kaolin, titanium dioxide, zinc sulphide, or calcium carbonate, the particles of which are preferably all less than 2 microns in size, optionally with a non-thermoplastic adhesive, e.g. casein, gelatine, soya protein, starch, gum arabic, pectin, agar-agar, polyvinyl alcohol, carboxy methyl cellulose, methyl cellulose and polydiisocyanates, or their condensation products with polyhydric alcohols, diamines, or diacids, optionally with a wax, e.g. a mineral wax, and one or more thermoplastic resinous and/or rubbery materials, e.g. butadieneacrylonitrile, -styrene, or -isobutylene, isoprene isobutylene, or acrylic polymers, natural rubber, polyvinyl-chloride or -acetate, styrene resin, ethyl cellulose, or cellulose acetate &c. preferably in latex form, e.g. with ammonia, emulsifying agents &c. The coating is applied by spraying, brushing, dipping, rolling &c., and dried, e.g. at 120‹ to 300‹ F., to a moisturecontent of 5 to 12 per cent. It may be spraymoistened and brushed using soft bristles, Tempico fibre, or nylon, and finished by rollmoulding at 5‹ to 35‹ F. above the second-order transition temperature, but below the tack point, at a pressure of 500 to 3000 lbs. per inch of nip.
Patent GB-289238-A (GB)
Title: Improvements in or relating to loading confined spaces such as aeroplane fuselages
IPC: B64D11/00
Filed: 1927-03-26
Abstract: 289,238. Fairey, C. R., and Roberts, H. F. March 26, 1927. Vehicle fittings and attachments.-To facilitate the loading of stretchers and other long objects into confined spaces such as aeroplane fuselages, a support is hinged at one end to the floor of the compartment and is adapted to be held in an inclined position to enable the stretcher or other object to be slid along it. Means for securing the stretcher to the floor and/or the support are provided. A support h comprising two parallel channel irons connected by transverse bars is pivoted at j to the floor of the compartment and is adapted to be slung from the edge of the fuselage opening by hooks k after removal of the deck piece which is secured as described in Specifications 252,061 and 271,673, [both in Class 44, Fastenings, Lock &c.]. The legs of the stretcher are secured by removable pins o to the support h and to blocks p on the floor and hand holes or doors may be provided in the fuselage fairing to give access to these pins. The machine may be loaded from beneath instead of from the top.
Patent GB-1380617-A (GB)
Title: Torsional vibration damper
IPC: F16F15/126
Filed: 1972-02-23
Abstract: 1380617 Torsional vibration dampers DAIMLER-BENZ AG 23 Feb 1972 [27 Feb 1971] 8377/72 Heading F2S A torsional vibration damper for a shaft 1 comprises an inertia mass 2, coaxial with the shaft and supported on an outer annular bearing member, and two resilient elements 3 attached to opposite faces of the mass and of an inner annular bearing member.  The rubber rings or segments 3 are vulcanized to the mass 2, and secured to both races of the bearing 4. The inner race and/or the rings 3 are rigidly connected to a sleeve 5 force-fitted on the shaft 1. The outer race may be fixed to the mass. Movement takes place between the races as allowed by stretching of the rings 3.
Patent GB-1372842-A (GB)
Title: Machining of longitudinally-slotted tubes
IPC: B23Q3/06
Filed: 1973-03-19
Abstract: 1372842 Rolling tubes; making threadrolled tubes LISKEY ALUMINUM Inc 19 March 1973 [23 March 1972] 8404/74 Divided  out of 1362647 Headings B3M and B3A In a process for deforming a slotted tube 19, the tube is slidden along a mandrel 1 past a deforming tool station, the mandrel being fixed relative to the deforming tool station, and a key 4 on the mandrel 1 engaging the slot 21 of the tube to hold the tube against rotation. The mandrel 1 forms part of the work-holder described in Specification 1,372,841. In the thread rolling process shown, thread-forming rolls 25 rotate at the deforming tool station, the tube 19 being drawn between them. The key 4 does not reach the outer surface of the tube 19 at the thread-rolling station. With additional guides (not shown) the slot 21 can be closed immediately before the threading operation, and the closed seam can be welded, fused, or glued before threading. Instead of the threads, serrations or bellows formations can be effected. Round, square, or hexagonal section tubes can be deformed. Suitably shaped mandrels can allow predetermined internal deformation of the tube.
Patent GB-116538-A (GB)
Title: Improvements in or relating to Keyboards for Typewriters.
Inventor: BANAJI FRAMERZ MEHERVANJI MUNC
IPC: B41J5/10
Filed: 1917-06-13
Abstract: 116,538. Banaji, F. M. M. June 13, 1917. Keyboards.-A shift keyboard comprises four keys k each provided with two identical punctuation marks, the arrangement enabling these marks to be printed when the platen is in either the normal or the shift position. The complete keyboard, comprising a space-bar a and shift-keys b, may be arranged in the manner shown.
Patent GB-127381-A (GB)
Title: Improvements in Motor Driven Cameras.
Inventor: WILLIAMSON COLIN MARTIN
IPC: G03B21/32
Filed: 1918-05-22
Abstract: 127,381. Williamson, C. M. May 22,1918. Aeronautical apparatus; magazine cameras with connected action between shutter and changing- mechanism; shutters with sliding plates.-Relates to motor-driven cameras in which the motor drives the receiving-spool through gearing and thus moves the film across the exposure aperture, and consists in the provision on the shutter of an engaging member adapted to release a catch from a notch in a disk rotated by the gearing and carrying a roll serving to control the feeding of the film from the gate to the receiving-spool, in the particular construction of the shutter and its operating mechanism, and in the starting and stopping mechanism for the spring motor. The invention is described with reference to a. camera for training marksmanship on aircraft. As shown in Fig. 1, the film 4 passes from a spool 2, through the gate 6, and over a sprocket 7, which engages marginal perforations in the film, to the take-up spool 3, The film is fed by the spool 3 which is geared by a train of wheels to the clock-work motor 5, a friction clutch between the wheels 15, 16 of the. train being provided. The sprocket 7 controls the feed and is secured to a co-axial disk 9 having one or more notches 10 normally engaged by a spring- pressed catch 11. The catch 11, Figs. 1 and 7, is disengaged from the notch 10 by a projection 13 on the shutter at the end of the exposure movement, the spool 3 being then free to pull the film through the gate until the catch again engages a notch. The shutter comprises a plate 18, Figs. 1 and 7, which slides on rods 19 and is actuated during the setting movement by a rack engaging a mutilated toothed wheel 20 driven from the motor 5. When the teeth on the wheel 20 pass out of engagement with the rack, the exposure is effected by the action of the tensioned spring 22, and the projection 13 releases the spring catch 11. A plate 31 sliding on the rods 19, but retarded in its movements by springs 33 lightly gripping the rods, is moved by projections 32 on the plate 18 so arranged as to permit relative movement between the plates 18, 31 so that the exposure opening in the plate 18 is covered during the setting moverrent and uncovered during the exposure movement. The motor 5 is normally kept out of action by a brake 25, Figs. 1 and 3, which engages the edge of a disk 27 on the shaft of the governor 28. The brake is carried by a spring 302 secured to a pivoted plate 30, and is held in engagement with the disk 27 by a pin 26 which is mounted on the gear-wheel 29 and presses the plate 30 in opposition to a spring 301. The plate 30 may be raised out of engagemnet with the pin 26 by a spring plunger 24 operated directly or through a Bowden wire, and operation of the mechanism continues until, after release of the plunger 24, the pin 26 again comes into engagement with the lever 30. Fig. 8 shows an arrangement whereby a photograph of the face of the clock 31' is obtained by means of an auxiliary lens 32' in the corner of each photograph taken.
Patent GB-380735-A (GB)
Title: Improvements in and relating to article transfer mechanism, particularly for bread slicing and wrapping machines
IPC: B65B25/18
Filed: 1932-03-23
Abstract: 380,735. Slicing bread. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co.; 511, 5th Avenue, New York, U.S.A.) March 23, 1932, No. 8622. [Class 5 (i).] A transfer mechanism, applicable to the delivery of sliced loaves from a slicing-machine to a wrapping-machine, comprises gripping devices and an associated feeler operable to grip and release the article at predetermined positions. The'loaves L, Fig. 1, after passing slicing apparatus 35, pass on to a table 36 between guides 37. A carriage 29, coupled to a slide 28, and carrying the grippers, is reciprocated on slide bars 30, 31 by links 16 .. 19 and rod 27 from a crank 15. As soon as the carriage has been moved to the right, Fig. 1, and a feeler 38, pivoted thereon at 40, contacts with a loaf on the table 36, the feeler is lifted and turns an arm 41 to swing a support 43 and allow an arm 34 to be pulled downwards by a spring. This disconnects the carriage 29 from the slide 28 ; the former remains stationary at the point at which the feeler encountered the loaf, and the latter completes its stroke. During the latter movement, a trip 48, Fig. 2, is moved so as to release an arm 49 to move in a clockwise direction under the action of a spring 50. Adjustable links 54, 60 transmit the motion to the grippers 56, 61, which are caused to close upon the loaf. The slide 28 executes its movement to the left, Fig. 1, carrying with it the carriage 29. Upon arrival at the loaf discharging position, the grippers are caused by fixed cams to separate and disengage the loaf and the parts are similarly reset for the next operation. The loaf descends on to a. conveyer 69, along which it is carried by projections 77 on chains 74, and is carried into the wrapping machine by a pusher 80 on chains on sprockets 82, 83.
Patent GB-1017391-A (GB)
Title: Improvements in and relating to valves for fluid pressure braking systems
Inventor: CHOUINGS LESLIE CYRIL
IPC: B60T8/18
Filed: 1961-03-09
Abstract: 1,017,391. Fluid-pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. March 8, 1962 [March 9, 1961], No. 8677/61. Heading F2F. A valve for a fluid pressure, load-regulated braking system for a vehicle comprises a spring- loaded valve member 1 interposed between a fluid inlet 3 and outlet 5, the spring 6 acting through an end-plate 8 and plunger 10 to urge valve member 1 away from its seat. Valve member 1 is closed at a braking pressure predetermined by the spring loading which is varied by the action of a rod 11. In the construction shown in Fig. 1, the valve is mounted on a bracket 18 of the vehicle loading platform 27. A member 16 pivoted on the bracket at 17 engages at its end a bracket plate 28 of the vehicle axle. The member 16 also carries a spring-loaded pressure plate 13 which, when relative movement takes place between the axle and platform 27 due to loading, varies the pressure exerted on the rod 11 and thus the spring 6. A dashpot device 23, 24 and the spring 14 of the pressure plate 13 damp oscillations due to the vehicle moving over uneven ground. In a further embodiment (Figs. 5 to 9, not shown), the valve is secured to the chassis of the vehicle which has independent suspension. A spring-loaded telescopic member surrounding and secured to the compression tube of the suspension engages a stirrup member 54 (not shown) pivoted about the chassis, a tappet screw 52 (not shown) of the stirrup member 54 (not shown) engaging and actuating rod 11.
Patent GB-843959-A (GB)
Title: Improvements in or relating to diecasting machines
IPC: B22D17/10
Filed: 1957-03-15
Abstract: 843,959. Casting - machines. REGIE NATIONALE DES USINES RENAULT, and SOC. DES HAUTS-FOURNEAUX ET FORGES D'ALLEVARD. March 15, 1957 [March 23, 1956], No. 8701/57. Class 83 (1). A pressure die-casting machine for ferrous metals comprises mould halves 1, 2, with an injection cylinder 25 connected to the upper mould half, and a cylindrical bore 26 in the lower mould-half coaxial with, and of the same diameter as; the injection cylinder, the respective pistons 28, 27<SP>1</SP>, being each movable from a position beyond the plane of the external face of the respective mould-half to a position beyond the horizontal joint face 3.
Patent GB-740714-A (GB)
Title: Building blocks
IPC: E04B2/02
Filed: 1953-03-30
Abstract: 740,714. Building blocks. WIGGANS, J. April 27, 1953 [March 30, 1953], No. 8740/53. Class 87(1). An apertured building block comprises inner and outer portions 1, 2 which have rabbets 9, 10 on their lower and upper edges and are joined by transverse divisions 4, the end ones 4a of which are provided with bolt holes 6. The rabbets are arranged to provide a longitudinal tongue on the top and a corresponding groove on the bottom of the block. A central longitudinal division 3 may be provided, if desired. Corresponding L-shaped corner blocks are provided.