baber/WOPTO huggingface dataset:
Patent GB-306829-A (GB)
Title: Improvements in piezo electric crystal apparatus
IPC: H03H9/08
Filed: 1929-02-23
Abstract: 306,829. Federal Telegraph Co., (Assignees of Worrall, R. H.). Feb. 25, 1928, [Convention date]. Piezo-eLectric crystal units. - A piezo-electric crystal holder, comprises a mounting plate supporting the crystal, means mounted transversely of the plate and extending into slots in the crystal for positioning the crystal, a floating electrode on the upper surface of the. crystal, and means attached to the mounting plate for positioning the floating electrode. As shown, the holder consists of a rectangular platform 1, Figs. 1, 3, 4, 6, with a central flat portion 8, sloping away each side, 7, to the ends. The crystal 16 rests on the portion 8 and is centred by rods 14 and 15 extending from members 9 and 11 secured to the base, and engaging slots cut at the centre of the crystal. A yoke 19 supported on pillars 20 and 21 screwed to the base, has holes 24 and 24<a> which guide rods 25 and 26 attached to an electrode 18 which rests on the crystal. A rod 27 is clamped to the centre of the yoke 19, and also to a thick sheet of mica 31 which forms the upper surface of the casing 5 attached to the base 1. A flexible connection extends from the electrode 18 to the rod 27 and forms one terminal, the other connection being made to the base plate. A pocket 33 is attached to the casing to receive a thermometer for recording the temperature.
Patent GB-180436-A (GB)
Title: Improvements in or relating to valve-operating gear for internal combustion engines
IPC: F01L1/42
Filed: 1921-02-23
Abstract: 180,436. Fedden, A. H. R., and Bristol Aeroplane Co., Ltd. Feb. 23, 1921. Epicyclic gearing. - Valve gear for internalcombustion engines, comprises a tappet-actuating cam drum 19 driven from the crank shaft 11, through epicyclic reducing gearing. A double gear 15 loose upon an eccentric 13 secured to the shaft 11 has external teeth 16 meshing with an internal ring 12 upon the crank case 10, and internal teeth 17 meshing with a gear ring 18 concentric with the shaft 11 and secured to the drum 19. The cams 21, 22 reciprocate the tappets 23, 24.
Patent GB-739280-A (GB)
Title: Improvements relating to sheet feeding means for duplicating or printing machines
Inventor: FORD RONALD MAX
IPC: B65H3/06
Filed: 1953-03-06
Abstract: 739,280. Feeding sheets; copying documents. FORD, Ltd., F. R., and FORD, R. M. March 3, 1954 [March 6, 1953], No. 6211/53. Classes 100 (1) and 100 (2). Sheet separators; duplicating machines.-In a duplicating machine having a rotary printing couple comprising a master cylinder and an impression roller, a sheet feeding mechanism having a sheet feeding roller for engaging and forwarding sheets to the printing couple is characterized in that the roller is driven by an actuating member disposed on the master cylinder or driven in timed relation thereto, a sprocket-wheel having an operative connection with the roller, and a chain lapping the sprocketwheel and having an operative connection with the actuating member so as to be drawn thereby whilst being maintained in a state of tension by a yieldable loading device. As shown, the machine comprises a master cylinder 10 and impression roller 16 supported between side frame members 11 and adjusted to be manually driven by a handle or crank. Fixed on the shaft of the cylinder 10 is a cam 32 which co-operates with cam followers 37, 47 on one end of the bell-crank levers 33, 34. The bellcrank lever 33 is pivoted at 39 and its arm remote from the cam follower 37 carries a component 36 which may be angularly adjusted with respect to the pivot 39 by means of screws 40 and screws 43. The end of the component 36 is connected to a chain 58, the other end of which is attached to a spring 60 and which runs over a sprocket-wheel 53. The lever 34 is similarly provided with an angularly adjustable component 45, and a sprocket chain 62 running over a sprocket-wheel 54. The shaft 55 of the sprocket-wheel 54 carries a gear 56 meshing with a gear 57 fast on the shaft of a forwarding and damping roller 27 which co-operates with another roller 28. The sprocket 53 is fast on a spindle 68 which carries a gear segment 66 marking with a gear 67 which, through a oneway clutch, drives a sheet forwarding and separating roller 20. The arrangement is such that on actuation of the lever 33 by the cam 32 only a slight endwise displacement of the chain 58 will result so that the roller 20 accelerates only slowly so as to prevent slipping of the roller with respect to the top sheet of the pile 19. The acceleration imparted to the forwarding roller 27 is such that its peripheral speed is less than the speed of a sheet at the instant when the leading edge of the sheet is fed between the bite of rollers 27, 28 so that relative slipping between the sheet and rollers is avoided. The sheets are fed over guides 24, 25, 26 and the roller 27 may be dampened by a pad 29. Specifications 678,157 and 719,052 are referred to.
Patent GB-216934-A (GB)
Title: Improvements in and connected with brake shoes of railway and the like vehicles
IPC: F16D65/06
Filed: 1923-03-05
Abstract: 216,934. Way, T. C. March 5, 1923. Blocks and shoes.-In order to equalize the wear over the surface of the treads of the wheels of railwav vehicles and of the braka blocks applied thereto when the tvre tread is considerably wider than the rail so that the tread tends to assume a concave form, the brake blocks are so formed as to have the central part of less length than the outer parts as by V-shaped cut away parts f, g, Fig. 4, or when a pair of shoes is applied to a wheel, one block d, Fig. 3, may be formed with the part adjacent the wheel flange of less length than the outer part, and the other shoe with its greatest length near the flange. The lengths at the two edges of the shoe shown in Fig. 4 may be equal. The shoes may be provided with grooved parts to engage the flanges of the tyres. Specification 131,726 is referred to.
Patent GB-366751-A (GB)
Title: Improvements in and relating to railway rails
IPC: C21D9/04
Filed: 1931-02-28
Abstract: 366,751. Railway rails. EISENWERKGES. MAXIMILIANSHœTTE, Rosenberg, Oberpfalz, Bavaria, Germany. Feb. 28,1931, No. 6355. Convention date, Feb. 28, 1930. [Class 104 (ii).] Rails with hardened surfaces have a core of soft steel or ingot iron embedded in the head to prevent fracture.
Patent GB-681668-A (GB)
Title: A device for automatically varying the setting of the fuel-injection timing of the fuel-injection pump of an internal-combustion engine
IPC: F02D1/00
Filed: 1951-03-16
Abstract: 681,668. Fluid-pressure servomotor-control systems. DECKEL, H., and DECKEL, F. W. March 16, 1951 [July 3, 1950], No. 6389/51. Class 135. In a device controlling the timing of a fuel-injection pump comprising a membrane 20 actuated by a pressure dependent upon engine speed and connected to the timing control rod 28, the casing parts 12, 18 are of sheet metal and are fixed to a wall of the engine by a carrier 10 in which one end 44 of the rod 28 is slidably supported. The membrane 20 is connected by washers 22 to a flange 26 on the rod 28, and casing element 12 is fastened by beading 14 to a carrier member 10 on which screws a nut 48 clamping the device in position on an engine wall 52. A passage 38 through the member 10 transmits the outlet pressure of an engine driven supercharger to the chamber 36 to actuate the membrane 20 in accordance with engine speed, and a cap 46 covers the projecting end 44 of the rod 28. The travel of the rod 28 is limited in one direction by engagement of the flange 26 with a stop 34 on the member 10, and in the other direction by engagement of the washers 22 with the casing 18.
Patent GB-694676-A (GB)
Title: Improvements in or relating to the construction of electrical condensers
IPC: H01G13/02
Filed: 1951-03-20
Abstract: 694,676. Electric condensers. STEPHEN, R. A. March 17, 1952 [March 20, 1951], No. 6639/51. Class 37. A condenser is made by rolling together on a mandrel a strip of thermoplastic dielectric material with foil electrodes, and heating the assembly so that the thermoplastic material flows over the edges of the foils to seal them together. A polystyrene strip 4, Fig. 2 is inserted in a slot 15, Fig. 4 in a mandrel and wound with foils 2, 3 as shown in Fig. 2. Instead of foils, the strip may be coated with aluminium, tin, silver or carbon. The condenser is placed in a holder 11, Fig. 3, and the portion 8 of the dielectric strip is cut away, the mandrel 7 removed and replaced by a mandrel 14. The assembly is then heated to cause the polystyrene to flow over the ends, and the mandrel removed. The mandrel 12 may be of steel, but if the condenser is not to have a central aperture, the mandrel 12 may be of plastic material and is left as a central core.
Patent GB-285661-A (GB)
Title: Improvements in and relating to commutators for dynamo electric machines
IPC: H01R43/06
Filed: 1927-03-10
Abstract: 285,661. British Thomson-Houston Co., Ltd., and Griffiths, L. March 10, 1927. Commutators. - Commutator segments are formed from a ring 1 provided with inward projections 4 having one or more annular grooves 2, and the recesses between the projections 4 are of dovetail section so that moulded insulation material 6 can fill the grooves and recesses. The machined ring 1 is placed in a mould together with a steel or other reinforcing ring 5 and after moulding, slots 7 are cut in the ring 1 to separate the segments. Alternatively, these slots may be formed by machining grooves in the inner surface of the ring before moulding, the outer surface being subsequently removed by turning.
Patent GB-106301-A (GB)
Title: Garment Fastener particularly for Fastening the Meeting Edges of Corsets.
IPC: A41F1/04
Filed: 1916-05-11
Abstract: 106,301. Marks, E. C. R., (Improved Stay Co.). May 11, 1916. Busk fastenings. - A flexible stay for garment-fasteners comprises two plates 10, 11 connected together throughout their lengths, and enclosing a releasing.bar 24 and a number of independent spring-actuated latches 17. As shown in Fig. 2, each pivoted latch 17 is provided with an integral spring 20, and is disengaged from its keeper 14 when the fingers 25 are raised by operating the releasing bar through the finger-piece 29. One of the plates 10, 11 is of spring steel while the other may be of pliable non-tempered metal, and they may be connected by clips 13 and spaced apart by studs 12. The slotted keepers 14 are preferably of doubled and ribbed metal.
Patent GB-949657-A (GB)
Title: Gaskets and methods of applying them
IPC: F16L23/22
Filed: 1962-02-21
Abstract: 949,657. Laminates. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Feb. 21, 1962 [Feb. 23, 1961], No. 6812/62. Heading B5N. [Also in Division F2] A gasket comprises a core 5, outer layers 8, 9 of resilient material and intermediate layers 6, 7 of resin hardened or to be hardened from the flowable state while interposed between the core and outer layers. In the embodiment, shown in Fig. 2, for sealing the joint between mating flanges 12, 13 lined with ceramic 16, the core 5 is a corrugated annulus preferably of steel or other metal, the layers 8, 9 may be of asbestos fibres and the gasket is enclosed on its upper and lower faces and inner periphery by a sheath 10 of impervious, pliant, corrosion resistant material, e.g. polytetrafluoroethylene to protect the gasket against the effects of the sealed fluid. Rings 11 of ductile metal, e.g. lead located as shown, prevent extrusion of the resin at the outer periphery of the gasket. The resin is preferably a liquid thermosetting resin such as epoxy resins, polyesters, ureaformaldehyde and phenol-formaldehyde. The resins may contain curing agents, for example, diethylene triamine, adipic acid, phthalic anhydride and stannous chloride with epoxy resins and benzoyl peroxide with polyester resins. The urea-formaldehyde and phenolformaldehyde resins may be cured by heating. In use, the assembled gasket with the resin 6, 7 in a flowable state is inserted between the flanges 12, 13 and pressurized by partial tightening of the bolts 17. The resin flows and fills all the voids, including the pocket 10b, in the sheath 10 and is then allowed to harden; the bolts are then fully tightened to complete the seal. In a modification, Fig. 4 (not shown), the metal core 5 and the rings 11 are replaced respectively by a flat annulus of hard asbestos and a thin metal ring surrounding the core and the resin layers. In a further modification, Fig. 5, the gasket comprises a core 35 of corrugated steel or other hard material, resin layers 36 and 37, rubber &c. outer layers 38 and 39 and rubber &c. inner and outer retaining rings 40 and 41. U.S.A. Specification 2,633,458 is referred to.
Patent GB-373674-A (GB)
Title: Improvements in or relating to apparatus for heating air
IPC: F26B21/00
Filed: 1931-03-05
Abstract: 373,674. Air-heating stoves. LOTUS, Ltd. and BROUGH, R., 193, Sandon Road, Stafford. March 5, 1931, No. 6898. [Class 126.] An apparatus specially intended for blowing hot air on to the uppers of boots and shoes comprises a casing 6, a passageway, tube, or conduit 4 therein internally heated by a gas jet 5 and mounted in the casing so as to provide an annular space for the air to be heated, a connection for supplying air under pressure to the annular space, a nozzle or the like, and a hand-piece or grip 12 whereby the apparatus can be manually manipulated. The tube 4 may be of copper and the casing 6 of brass. The tube is provided with openings 9 through which air, supplied under pressure by the pipe 13, may pass to the gas jet. When the gas is lit, it burns at the apertures 10 in the nozzle. When the compressed air is turned on the gas ignites at the jet 5, heats the tube 4, and thus the air escaping by a ring of apertures 11.
Patent GB-549689-A (GB)
Title: Apparatus for the treatment of metal and like articles with liquids or vapours for degreasing
IPC: C23G5/04
Filed: 1941-05-30
Abstract: 549,689. Dry-cleaning apparatus. JESSON, W. F., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 30, 1941, No. 6924. [Class 91] [Also in Group XXX] A degreasing apparatus for small articles employing a volatile grease solvent at an elevated temperature, and having in the upper part condensing means for limiting upwardly the solvent vapour level, is provided with means for conveying the articles through the treating zone consisting of an endless-belt conveyer 7 with projecting members or grids 9 working in a trough-shaped casing having its entering end 12 and leaving end 14 extending above its lowermost treating zone 13. The trough is associated with an outer casing 1 having heating or evaporating coils 4 at its lower part or sump and cooling coils 5 by which the vapour of the degreasing medium is condensed and collected by a channel 6, from which it is conveyed by a pipe 11 to the lowest part 13 of the trough from which the surplus overflows, thus ensuring continuous circulation.
Patent GB-1284215-A (GB)
Title: Headlight
IPC: B60S1/60
Filed: 1970-02-13
Abstract: 1284215 Cleaning vehicle headlamp glasses HOLZER PATENT A G 13 Feb 1970 [14 Feb 1969] 6995/70 Heading A4F [Also in Division F4] A vehicle headlamp comprises a cover glass 1 which is of circular cross-section cylindrical form mounted to enclose a lamp bulb 8 and driven by a motor to rotate about its axis such that a wiper blade 5 cleans it as it rotates. Nozzles 7 may be provided for delivering a cleaning liquid to assist the cleaning action. The rotation may be continuous when the cover-plate may be wholly transparent, or oscillating when the cover-plate may comprise an opaque region 11 which can be arranged to automatically cover the headlamp when it is switched off to keep the transparent region 10 clean behind the wipers 5 which also act as screens, and further there may be a yellow filter region 9 for use in fog which can be rotated into position in front of the headlamp. The cover glass may alternatively be arranged to be moved by hand by means of a Bowden cable.
Patent GB-273615-A (GB)
Title: Car axle bearings
IPC: B61F15/12
Filed: 1927-03-14
Abstract: 273,615. Melcher, L. W. Dec. 4, 1926, [Convention date]. Capillary-action lubricating.-In an axle-box 4 wherein the axle 5 is journaled in a roller bearing 10, oil is supplied by a wick 17 from a well 11 in the box to the central portion of the end 7 of the axle, whence it is thrown outwards and directed to the roller bearing. The wick is arranged in inclined passages 20, 21 in a thrust block 15 interposed between the axle end and a cap 13, and is held against displacement by a pin 22, the end of which enters a recess in the axle end. The block 15 is secured by a bolt 15<a> in a recess in the cap 13. Oil thrown outwards from the axle end is caught by an annular inclined wall 24 on the cap 13 and directed to the bearing. Annular grooves 25, 28 on the axle prevent inward flow of oil along the axle, while oil accumulating in a seal 30 returns to the well 11 through a duct 31.
Patent GB-822222-A (GB)
Title: Improvements in and relating to seats and the like
IPC: A47C7/32
Filed: 1958-03-05
Abstract: 822,222. Spring upholstery. GREAVES & THOMAS Ltd., and COBB, W. R. March 5, 1958, No. 7096/58. Class 52(4) A seat, settee or the like with front rail A, back rail B, end rails C, cross rails D and resilient supporting surfaces each including flexible linkages radiating from a central member 1a and connected to tension springs 2 has a floating front anchorage constituted by a steel spring stay 6 secured to cross rail D and carrying an anchorage plate 8. A yoke 9 secured to rail D limits upward movement of the stay. In a modification (Fig. 2) all the anchorages are floating. Stays 6a, 6a are secured to rails A, B and the inner corners of each resilient supporting surface are attached at 5a and 8a to the ends of a stay 6b secured to cross rail D. A marginal tension spring 10 may be provided. Specification 811,094 also is referred to.
Patent GB-677294-A (GB)
Title: Improvements in truss side frames for railway vehicle undercarriages
IPC: B61F5/52
Filed: 1950-03-22
Abstract: 677,294. Rail - vehicle undercarriages. OAKLEY, J. L. D., (American Steel Foundries). March 22, 1950, No. 7161/50. Class 103(vi) A truss side frame has brake beam support brackets 35, Fig. 6, integrally cast so as to strengthen the frame by providing secondary trusses, and comprises a compression member 1, Figs. 1, 2, a tension member 2, and a column 3 defining a bolster opening 4 and a window 5. The bottom wall 7 of the member 1 merges with a transverse web 10 of each column 3, the column having inboard and outboard webs 11, 12, beaded as at 13. The web 10, Figs. 2a, 2b and 3 (not shown), is provided with lugs 14, 15 to accommodate a wear plate (not shown), and lugs 18, 19 and recesses 20, 21 are provided on the column 3 to cooperate with the plate. The member 2 has walls 22-25, the walls 24, 25 merging at the ends of the frame with the column webs 11, 12. Beneath the bolster opening 4 the wall 22 has widened portions 27, 28, to afford positioning means for springs, and have inboard and outboard flanges 29, 30, the flanges merging with the webs 11, 12, toward the longitudinal centre line of the frame as shown. The bracket 35 comprises top and bottom ledges 36 and 38 on the inboard side of the frame. The lower end of the ledge 36 is connected to the web 11 and merges with the bead 33, whilst the forward end of the ledge is connected to a front wall 37, Fig. 7, adapted to afford stop limiting means for the brake beam. The ledge 38 merges with the edge of the spring seat extension 27. Wheel recesses 40, 41 are provided, and recesses 42 are also provided to accommodate a wear plate (not shown), holes 43, 44 being used to position the plate. The oblique flange 29 affords the stop means for the brake beam as the latter slides downwardly in the bracket 35, the curve of the flange preventing accumulation of dust and dirt in the bracket. Figs. 9-11 (not shown), illustrate a modified bracket wherein the top ledge 36 is spaced above and terminated short of the spring seat flange 29 and is connected directly to the web 11 but is reinforced by a gusset 45.
Patent GB-737123-A (GB)
Title: An improved apparatus for cleaning timber shuttering and the like
IPC: E04G19/00
Filed: 1953-03-16
Abstract: 737,123. Cleaning planks &c. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL SOC. ANON. March 16, 1953 [March 15, 1952], No. 7198/53. Class 99 (2). [Also in Group XXIII] Apparatus for cleaning a shuttering plank 31 resting on its edge comprises cages rotating in opposite directions on vertical spindles 11 and having rollers 30 around their peripheiies mounted with clearance on spindles 15 so that centrifugal force projects the rollers outwards on these spindles. One cage is mounted on plates slidable in the main frame 1 by a screw 8 so that the distance between the rollers, when they are in their outermost position, may be adjusted to be less than the thickness of the plank 31, against which the rollers are pressed by centrifugal force. The rollers thus may ride over obstructions such as nails. Each spindle 15 may carry a number of coaxial short rollers. The cages are driven by bevel gearing 20, 21. The shutter plank is guided by rollers 33.
Patent GB-771340-A (GB)
Title: A method of making insoluble sulphur
IPC: C01B17/12
Filed: 1955-03-11
Abstract: Insoluble sulphur is made in the absence of a catalyst and in vessels which do not give off metals or metal compounds to act as catalysts by heating sulphur to a temperature below its volatilization temperature, preferably in an inert atmosphere; adding an inhibitor which prevents reversion of insoluble sulphur to soluble sulphur and in a different vessel to the heating vessel; removing from this vessel and cooling the melt and finally separating the residue.  The melt is preferably adjusted so as to contain 35-45 per cent by weight of insoluble sulphur.  When soluble sulphur is dissolved out from the cooled melt such as in a method above the solvent may be removed by introducing warm water through the bottom of the extractor until the water level has risen above the surface of the residue and then withdrawing the water.